Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a687059c | 5 | * |
d48672a2 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
378cc40b | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * 'It all comes from here, the stench and the peril.' --Frodo |
13 | * | |
14 | * [p.719 of _The Lord of the Rings_, IV/ix: "Shelob's Lair"] | |
378cc40b LW |
15 | */ |
16 | ||
9cbb5ea2 GS |
17 | /* |
18 | * This file is the lexer for Perl. It's closely linked to the | |
4e553d73 | 19 | * parser, perly.y. |
ffb4593c NT |
20 | * |
21 | * The main routine is yylex(), which returns the next token. | |
22 | */ | |
23 | ||
f0e67a1d Z |
24 | /* |
25 | =head1 Lexer interface | |
26 | ||
27 | This is the lower layer of the Perl parser, managing characters and tokens. | |
28 | ||
29 | =for apidoc AmU|yy_parser *|PL_parser | |
30 | ||
31 | Pointer to a structure encapsulating the state of the parsing operation | |
32 | currently in progress. The pointer can be locally changed to perform | |
33 | a nested parse without interfering with the state of an outer parse. | |
34 | Individual members of C<PL_parser> have their own documentation. | |
35 | ||
36 | =cut | |
37 | */ | |
38 | ||
378cc40b | 39 | #include "EXTERN.h" |
864dbfa3 | 40 | #define PERL_IN_TOKE_C |
378cc40b | 41 | #include "perl.h" |
04e98a4d | 42 | #include "dquote_static.c" |
378cc40b | 43 | |
eb0d8d16 NC |
44 | #define new_constant(a,b,c,d,e,f,g) \ |
45 | S_new_constant(aTHX_ a,b,STR_WITH_LEN(c),d,e,f, g) | |
46 | ||
6154021b | 47 | #define pl_yylval (PL_parser->yylval) |
d3b6f988 | 48 | |
199e78b7 DM |
49 | /* XXX temporary backwards compatibility */ |
50 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
51 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
52 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
53 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
54 | #define PL_lex_defer (PL_parser->lex_defer) | |
55 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
56 | #define PL_lex_expect (PL_parser->lex_expect) | |
57 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
58 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
59 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
60 | #define PL_lex_op (PL_parser->lex_op) | |
61 | #define PL_lex_repl (PL_parser->lex_repl) | |
62 | #define PL_lex_starts (PL_parser->lex_starts) | |
63 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
64 | #define PL_multi_start (PL_parser->multi_start) | |
65 | #define PL_multi_open (PL_parser->multi_open) | |
66 | #define PL_multi_close (PL_parser->multi_close) | |
67 | #define PL_pending_ident (PL_parser->pending_ident) | |
68 | #define PL_preambled (PL_parser->preambled) | |
69 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 70 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
71 | #define PL_expect (PL_parser->expect) |
72 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
73 | #define PL_bufptr (PL_parser->bufptr) |
74 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
75 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
76 | #define PL_linestart (PL_parser->linestart) | |
77 | #define PL_bufend (PL_parser->bufend) | |
78 | #define PL_last_uni (PL_parser->last_uni) | |
79 | #define PL_last_lop (PL_parser->last_lop) | |
80 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 81 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 82 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 83 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
84 | #define PL_in_my (PL_parser->in_my) |
85 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 86 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 87 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 88 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
89 | |
90 | #ifdef PERL_MAD | |
91 | # define PL_endwhite (PL_parser->endwhite) | |
92 | # define PL_faketokens (PL_parser->faketokens) | |
93 | # define PL_lasttoke (PL_parser->lasttoke) | |
94 | # define PL_nextwhite (PL_parser->nextwhite) | |
95 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
96 | # define PL_skipwhite (PL_parser->skipwhite) | |
97 | # define PL_thisclose (PL_parser->thisclose) | |
98 | # define PL_thismad (PL_parser->thismad) | |
99 | # define PL_thisopen (PL_parser->thisopen) | |
100 | # define PL_thisstuff (PL_parser->thisstuff) | |
101 | # define PL_thistoken (PL_parser->thistoken) | |
102 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
103 | # define PL_thiswhite (PL_parser->thiswhite) |
104 | # define PL_nexttoke (PL_parser->nexttoke) | |
105 | # define PL_curforce (PL_parser->curforce) | |
106 | #else | |
107 | # define PL_nexttoke (PL_parser->nexttoke) | |
108 | # define PL_nexttype (PL_parser->nexttype) | |
109 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
110 | #endif |
111 | ||
16173588 NC |
112 | /* This can't be done with embed.fnc, because struct yy_parser contains a |
113 | member named pending_ident, which clashes with the generated #define */ | |
3cbf51f5 DM |
114 | static int |
115 | S_pending_ident(pTHX); | |
199e78b7 | 116 | |
0bd48802 | 117 | static const char ident_too_long[] = "Identifier too long"; |
8903cb82 | 118 | |
29595ff2 | 119 | #ifdef PERL_MAD |
29595ff2 | 120 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 121 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 122 | #else |
5db06880 | 123 | # define CURMAD(slot,sv) |
9ded7720 | 124 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
125 | #endif |
126 | ||
9059aa12 LW |
127 | #define XFAKEBRACK 128 |
128 | #define XENUMMASK 127 | |
129 | ||
39e02b42 JH |
130 | #ifdef USE_UTF8_SCRIPTS |
131 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 132 | #else |
746b446a | 133 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 134 | #endif |
a0ed51b3 | 135 | |
b1fc3636 CJ |
136 | /* The maximum number of characters preceding the unrecognized one to display */ |
137 | #define UNRECOGNIZED_PRECEDE_COUNT 10 | |
138 | ||
61f0cdd9 | 139 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
140 | * 1999-02-27 mjd-perl-patch@plover.com */ |
141 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
142 | ||
bf4acbe4 | 143 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') |
bf4acbe4 | 144 | |
ffb4593c NT |
145 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
146 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
147 | * can get by with a single comparison (if the compiler is smart enough). |
148 | */ | |
149 | ||
fb73857a | 150 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
151 | ||
b6007c36 DM |
152 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
153 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
154 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
155 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
156 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
157 | ||
158 | /* at end of code, eg "$x" followed by: */ | |
159 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
160 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
161 | ||
162 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
163 | string or after \E, $foo, etc */ | |
164 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
165 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
166 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
167 | ||
79072805 | 168 | |
bbf60fe6 | 169 | #ifdef DEBUGGING |
27da23d5 | 170 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
171 | "KNOWNEXT", |
172 | "FORMLINE", | |
173 | "INTERPCONST", | |
174 | "INTERPCONCAT", | |
175 | "INTERPENDMAYBE", | |
176 | "INTERPEND", | |
177 | "INTERPSTART", | |
178 | "INTERPPUSH", | |
179 | "INTERPCASEMOD", | |
180 | "INTERPNORMAL", | |
181 | "NORMAL" | |
182 | }; | |
183 | #endif | |
184 | ||
79072805 LW |
185 | #ifdef ff_next |
186 | #undef ff_next | |
d48672a2 LW |
187 | #endif |
188 | ||
79072805 | 189 | #include "keywords.h" |
fe14fcc3 | 190 | |
ffb4593c NT |
191 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
192 | ||
ae986130 LW |
193 | #ifdef CLINE |
194 | #undef CLINE | |
195 | #endif | |
57843af0 | 196 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 197 | |
5db06880 | 198 | #ifdef PERL_MAD |
29595ff2 NC |
199 | # define SKIPSPACE0(s) skipspace0(s) |
200 | # define SKIPSPACE1(s) skipspace1(s) | |
201 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
202 | # define PEEKSPACE(s) skipspace2(s,0) | |
203 | #else | |
204 | # define SKIPSPACE0(s) skipspace(s) | |
205 | # define SKIPSPACE1(s) skipspace(s) | |
206 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
207 | # define PEEKSPACE(s) skipspace(s) | |
208 | #endif | |
209 | ||
ffb4593c NT |
210 | /* |
211 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 212 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
213 | * |
214 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
215 | * OPERATOR : generic operator | |
216 | * AOPERATOR : assignment operator | |
217 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
218 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
219 | * PREREF : *EXPR where EXPR is not a simple identifier | |
220 | * TERM : expression term | |
221 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
222 | * FTST : file test operator | |
223 | * FUN0 : zero-argument function | |
2d2e263d | 224 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
225 | * BOop : bitwise or or xor |
226 | * BAop : bitwise and | |
227 | * SHop : shift operator | |
228 | * PWop : power operator | |
9cbb5ea2 | 229 | * PMop : pattern-matching operator |
ffb4593c NT |
230 | * Aop : addition-level operator |
231 | * Mop : multiplication-level operator | |
232 | * Eop : equality-testing operator | |
e5edeb50 | 233 | * Rop : relational operator <= != gt |
ffb4593c NT |
234 | * |
235 | * Also see LOP and lop() below. | |
236 | */ | |
237 | ||
998054bd | 238 | #ifdef DEBUGGING /* Serve -DT. */ |
704d4215 | 239 | # define REPORT(retval) tokereport((I32)retval, &pl_yylval) |
998054bd | 240 | #else |
bbf60fe6 | 241 | # define REPORT(retval) (retval) |
998054bd SC |
242 | #endif |
243 | ||
bbf60fe6 DM |
244 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
245 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
246 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
247 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
248 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
249 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
250 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
251 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
252 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
253 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
254 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
255 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
256 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
257 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
258 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
259 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
260 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
261 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
262 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
263 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 264 | |
a687059c LW |
265 | /* This bit of chicanery makes a unary function followed by |
266 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
267 | * The UNIDOR macro is for unary functions that can be followed by the // |
268 | * operator (such as C<shift // 0>). | |
a687059c | 269 | */ |
376fcdbf | 270 | #define UNI2(f,x) { \ |
6154021b | 271 | pl_yylval.ival = f; \ |
376fcdbf AL |
272 | PL_expect = x; \ |
273 | PL_bufptr = s; \ | |
274 | PL_last_uni = PL_oldbufptr; \ | |
275 | PL_last_lop_op = f; \ | |
276 | if (*s == '(') \ | |
277 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 278 | s = PEEKSPACE(s); \ |
376fcdbf AL |
279 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
280 | } | |
6f33ba73 RGS |
281 | #define UNI(f) UNI2(f,XTERM) |
282 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 283 | |
376fcdbf | 284 | #define UNIBRACK(f) { \ |
6154021b | 285 | pl_yylval.ival = f; \ |
376fcdbf AL |
286 | PL_bufptr = s; \ |
287 | PL_last_uni = PL_oldbufptr; \ | |
288 | if (*s == '(') \ | |
289 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 290 | s = PEEKSPACE(s); \ |
376fcdbf AL |
291 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
292 | } | |
79072805 | 293 | |
9f68db38 | 294 | /* grandfather return to old style */ |
6154021b | 295 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 296 | |
8fa7f367 JH |
297 | #ifdef DEBUGGING |
298 | ||
6154021b | 299 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
300 | enum token_type { |
301 | TOKENTYPE_NONE, | |
302 | TOKENTYPE_IVAL, | |
6154021b | 303 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
304 | TOKENTYPE_PVAL, |
305 | TOKENTYPE_OPVAL, | |
306 | TOKENTYPE_GVVAL | |
307 | }; | |
308 | ||
6d4a66ac NC |
309 | static struct debug_tokens { |
310 | const int token; | |
311 | enum token_type type; | |
312 | const char *name; | |
313 | } const debug_tokens[] = | |
9041c2e3 | 314 | { |
bbf60fe6 DM |
315 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
316 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
317 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
318 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
319 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
320 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
321 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
322 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
323 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
324 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 325 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
326 | { DO, TOKENTYPE_NONE, "DO" }, |
327 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
328 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
329 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
330 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
331 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
332 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
333 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
334 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
335 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
336 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
337 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
338 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
339 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
340 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 341 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
342 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
343 | { IF, TOKENTYPE_IVAL, "IF" }, | |
344 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
345 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
346 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
347 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
348 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
349 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
350 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
351 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
352 | { MY, TOKENTYPE_IVAL, "MY" }, | |
353 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
354 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
355 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
356 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
357 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
358 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
88e1f1a2 JV |
359 | { PLUGEXPR, TOKENTYPE_OPVAL, "PLUGEXPR" }, |
360 | { PLUGSTMT, TOKENTYPE_OPVAL, "PLUGSTMT" }, | |
bbf60fe6 DM |
361 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, |
362 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
363 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
364 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
365 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
366 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
367 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
368 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
369 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
370 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
371 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
372 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
373 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
374 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
375 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
376 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
377 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
378 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 379 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
380 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
381 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
be25f609 | 382 | { YADAYADA, TOKENTYPE_IVAL, "YADAYADA" }, |
c35e046a | 383 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
384 | }; |
385 | ||
6154021b | 386 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 387 | |
bbf60fe6 | 388 | STATIC int |
704d4215 | 389 | S_tokereport(pTHX_ I32 rv, const YYSTYPE* lvalp) |
bbf60fe6 | 390 | { |
97aff369 | 391 | dVAR; |
7918f24d NC |
392 | |
393 | PERL_ARGS_ASSERT_TOKEREPORT; | |
394 | ||
bbf60fe6 | 395 | if (DEBUG_T_TEST) { |
bd61b366 | 396 | const char *name = NULL; |
bbf60fe6 | 397 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 398 | const struct debug_tokens *p; |
396482e1 | 399 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 400 | |
f54cb97a | 401 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
402 | if (p->token == (int)rv) { |
403 | name = p->name; | |
404 | type = p->type; | |
405 | break; | |
406 | } | |
407 | } | |
408 | if (name) | |
54667de8 | 409 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
410 | else if ((char)rv > ' ' && (char)rv < '~') |
411 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
412 | else if (!rv) | |
396482e1 | 413 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
414 | else |
415 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
416 | switch (type) { | |
417 | case TOKENTYPE_NONE: | |
418 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
419 | break; | |
420 | case TOKENTYPE_IVAL: | |
704d4215 | 421 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)lvalp->ival); |
bbf60fe6 DM |
422 | break; |
423 | case TOKENTYPE_OPNUM: | |
424 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
704d4215 | 425 | PL_op_name[lvalp->ival]); |
bbf60fe6 DM |
426 | break; |
427 | case TOKENTYPE_PVAL: | |
704d4215 | 428 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", lvalp->pval); |
bbf60fe6 DM |
429 | break; |
430 | case TOKENTYPE_OPVAL: | |
704d4215 | 431 | if (lvalp->opval) { |
401441c0 | 432 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
704d4215 GG |
433 | PL_op_name[lvalp->opval->op_type]); |
434 | if (lvalp->opval->op_type == OP_CONST) { | |
b6007c36 | 435 | Perl_sv_catpvf(aTHX_ report, " %s", |
704d4215 | 436 | SvPEEK(cSVOPx_sv(lvalp->opval))); |
b6007c36 DM |
437 | } |
438 | ||
439 | } | |
401441c0 | 440 | else |
396482e1 | 441 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
442 | break; |
443 | } | |
b6007c36 | 444 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
445 | }; |
446 | return (int)rv; | |
998054bd SC |
447 | } |
448 | ||
b6007c36 DM |
449 | |
450 | /* print the buffer with suitable escapes */ | |
451 | ||
452 | STATIC void | |
15f169a1 | 453 | S_printbuf(pTHX_ const char *const fmt, const char *const s) |
b6007c36 | 454 | { |
396482e1 | 455 | SV* const tmp = newSVpvs(""); |
7918f24d NC |
456 | |
457 | PERL_ARGS_ASSERT_PRINTBUF; | |
458 | ||
b6007c36 DM |
459 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
460 | SvREFCNT_dec(tmp); | |
461 | } | |
462 | ||
8fa7f367 JH |
463 | #endif |
464 | ||
8290c323 NC |
465 | static int |
466 | S_deprecate_commaless_var_list(pTHX) { | |
467 | PL_expect = XTERM; | |
468 | deprecate("comma-less variable list"); | |
469 | return REPORT(','); /* grandfather non-comma-format format */ | |
470 | } | |
471 | ||
ffb4593c NT |
472 | /* |
473 | * S_ao | |
474 | * | |
c963b151 BD |
475 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
476 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
477 | */ |
478 | ||
76e3520e | 479 | STATIC int |
cea2e8a9 | 480 | S_ao(pTHX_ int toketype) |
a0d0e21e | 481 | { |
97aff369 | 482 | dVAR; |
3280af22 NIS |
483 | if (*PL_bufptr == '=') { |
484 | PL_bufptr++; | |
a0d0e21e | 485 | if (toketype == ANDAND) |
6154021b | 486 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 487 | else if (toketype == OROR) |
6154021b | 488 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 489 | else if (toketype == DORDOR) |
6154021b | 490 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
491 | toketype = ASSIGNOP; |
492 | } | |
493 | return toketype; | |
494 | } | |
495 | ||
ffb4593c NT |
496 | /* |
497 | * S_no_op | |
498 | * When Perl expects an operator and finds something else, no_op | |
499 | * prints the warning. It always prints "<something> found where | |
500 | * operator expected. It prints "Missing semicolon on previous line?" | |
501 | * if the surprise occurs at the start of the line. "do you need to | |
502 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
503 | * where the compiler doesn't know if foo is a method call or a function. | |
504 | * It prints "Missing operator before end of line" if there's nothing | |
505 | * after the missing operator, or "... before <...>" if there is something | |
506 | * after the missing operator. | |
507 | */ | |
508 | ||
76e3520e | 509 | STATIC void |
15f169a1 | 510 | S_no_op(pTHX_ const char *const what, char *s) |
463ee0b2 | 511 | { |
97aff369 | 512 | dVAR; |
9d4ba2ae AL |
513 | char * const oldbp = PL_bufptr; |
514 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 515 | |
7918f24d NC |
516 | PERL_ARGS_ASSERT_NO_OP; |
517 | ||
1189a94a GS |
518 | if (!s) |
519 | s = oldbp; | |
07c798fb | 520 | else |
1189a94a | 521 | PL_bufptr = s; |
cea2e8a9 | 522 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
523 | if (ckWARN_d(WARN_SYNTAX)) { |
524 | if (is_first) | |
525 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
526 | "\t(Missing semicolon on previous line?)\n"); | |
527 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 528 | const char *t; |
c35e046a AL |
529 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
530 | NOOP; | |
56da5a46 RGS |
531 | if (t < PL_bufptr && isSPACE(*t)) |
532 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
533 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 534 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
535 | } |
536 | else { | |
537 | assert(s >= oldbp); | |
538 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 539 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 540 | } |
07c798fb | 541 | } |
3280af22 | 542 | PL_bufptr = oldbp; |
8990e307 LW |
543 | } |
544 | ||
ffb4593c NT |
545 | /* |
546 | * S_missingterm | |
547 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 548 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
549 | * If we're in a delimited string and the delimiter is a control |
550 | * character, it's reformatted into a two-char sequence like ^C. | |
551 | * This is fatal. | |
552 | */ | |
553 | ||
76e3520e | 554 | STATIC void |
cea2e8a9 | 555 | S_missingterm(pTHX_ char *s) |
8990e307 | 556 | { |
97aff369 | 557 | dVAR; |
8990e307 LW |
558 | char tmpbuf[3]; |
559 | char q; | |
560 | if (s) { | |
9d4ba2ae | 561 | char * const nl = strrchr(s,'\n'); |
d2719217 | 562 | if (nl) |
8990e307 LW |
563 | *nl = '\0'; |
564 | } | |
463559e7 | 565 | else if (isCNTRL(PL_multi_close)) { |
8990e307 | 566 | *tmpbuf = '^'; |
585ec06d | 567 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
568 | tmpbuf[2] = '\0'; |
569 | s = tmpbuf; | |
570 | } | |
571 | else { | |
eb160463 | 572 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
573 | tmpbuf[1] = '\0'; |
574 | s = tmpbuf; | |
575 | } | |
576 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 577 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 578 | } |
79072805 | 579 | |
ef89dcc3 | 580 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 581 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 582 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b | 583 | /* The longest string we pass in. */ |
1863b879 | 584 | #define MAX_FEATURE_LEN (sizeof("unicode_strings")-1) |
4a731d7b | 585 | |
0d863452 RH |
586 | /* |
587 | * S_feature_is_enabled | |
588 | * Check whether the named feature is enabled. | |
589 | */ | |
590 | STATIC bool | |
15f169a1 | 591 | S_feature_is_enabled(pTHX_ const char *const name, STRLEN namelen) |
0d863452 | 592 | { |
97aff369 | 593 | dVAR; |
0d863452 | 594 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b | 595 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
7918f24d NC |
596 | |
597 | PERL_ARGS_ASSERT_FEATURE_IS_ENABLED; | |
598 | ||
4a731d7b NC |
599 | assert(namelen <= MAX_FEATURE_LEN); |
600 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 601 | |
7b9ef140 | 602 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
603 | } |
604 | ||
ffb4593c | 605 | /* |
9cbb5ea2 GS |
606 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
607 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
608 | */ |
609 | ||
c39cd008 GS |
610 | #ifdef PERL_CR_FILTER |
611 | static void | |
612 | strip_return(SV *sv) | |
613 | { | |
95a20fc0 | 614 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 615 | register const char * const e = s + SvCUR(sv); |
7918f24d NC |
616 | |
617 | PERL_ARGS_ASSERT_STRIP_RETURN; | |
618 | ||
c39cd008 GS |
619 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
620 | while (s < e) { | |
621 | if (*s++ == '\r' && *s == '\n') { | |
622 | /* hit a CR-LF, need to copy the rest */ | |
623 | register char *d = s - 1; | |
624 | *d++ = *s++; | |
625 | while (s < e) { | |
626 | if (*s == '\r' && s[1] == '\n') | |
627 | s++; | |
628 | *d++ = *s++; | |
629 | } | |
630 | SvCUR(sv) -= s - d; | |
631 | return; | |
632 | } | |
633 | } | |
634 | } | |
a868473f | 635 | |
76e3520e | 636 | STATIC I32 |
c39cd008 | 637 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 638 | { |
f54cb97a | 639 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
640 | if (count > 0 && !maxlen) |
641 | strip_return(sv); | |
642 | return count; | |
a868473f NIS |
643 | } |
644 | #endif | |
645 | ||
199e78b7 DM |
646 | |
647 | ||
ffb4593c NT |
648 | /* |
649 | * Perl_lex_start | |
5486870f | 650 | * |
e3abe207 | 651 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
652 | * |
653 | * rsfp is the opened file handle to read from (if any), | |
654 | * | |
655 | * line holds any initial content already read from the file (or in | |
656 | * the case of no file, such as an eval, the whole contents); | |
657 | * | |
658 | * new_filter indicates that this is a new file and it shouldn't inherit | |
659 | * the filters from the current parser (ie require). | |
ffb4593c NT |
660 | */ |
661 | ||
a0d0e21e | 662 | void |
5486870f | 663 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 664 | { |
97aff369 | 665 | dVAR; |
6ef55633 | 666 | const char *s = NULL; |
8990e307 | 667 | STRLEN len; |
5486870f | 668 | yy_parser *parser, *oparser; |
acdf0a21 DM |
669 | |
670 | /* create and initialise a parser */ | |
671 | ||
199e78b7 | 672 | Newxz(parser, 1, yy_parser); |
5486870f | 673 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
674 | PL_parser = parser; |
675 | ||
28ac2b49 Z |
676 | parser->stack = NULL; |
677 | parser->ps = NULL; | |
678 | parser->stack_size = 0; | |
acdf0a21 | 679 | |
e3abe207 DM |
680 | /* on scope exit, free this parser and restore any outer one */ |
681 | SAVEPARSER(parser); | |
7c4baf47 | 682 | parser->saved_curcop = PL_curcop; |
e3abe207 | 683 | |
acdf0a21 | 684 | /* initialise lexer state */ |
8990e307 | 685 | |
fb205e7a DM |
686 | #ifdef PERL_MAD |
687 | parser->curforce = -1; | |
688 | #else | |
689 | parser->nexttoke = 0; | |
690 | #endif | |
ca4cfd28 | 691 | parser->error_count = oparser ? oparser->error_count : 0; |
c2598295 | 692 | parser->copline = NOLINE; |
5afb0a62 | 693 | parser->lex_state = LEX_NORMAL; |
c2598295 | 694 | parser->expect = XSTATE; |
2f9285f8 | 695 | parser->rsfp = rsfp; |
56b27c9a | 696 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
502c6561 | 697 | : MUTABLE_AV(SvREFCNT_inc(oparser->rsfp_filters)); |
2f9285f8 | 698 | |
199e78b7 DM |
699 | Newx(parser->lex_brackstack, 120, char); |
700 | Newx(parser->lex_casestack, 12, char); | |
701 | *parser->lex_casestack = '\0'; | |
02b34bbe | 702 | |
10efb74f NC |
703 | if (line) { |
704 | s = SvPV_const(line, len); | |
705 | } else { | |
706 | len = 0; | |
707 | } | |
bdc0bf6f | 708 | |
10efb74f | 709 | if (!len) { |
bdc0bf6f | 710 | parser->linestr = newSVpvs("\n;"); |
3e5c0189 | 711 | } else if (SvREADONLY(line) || s[len-1] != ';' || !SvPOK(line)) { |
719a9bb0 NC |
712 | /* avoid tie/overload weirdness */ |
713 | parser->linestr = newSVpvn_flags(s, len, SvUTF8(line)); | |
10efb74f | 714 | if (s[len-1] != ';') |
bdc0bf6f | 715 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
716 | } else { |
717 | SvTEMP_off(line); | |
718 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 719 | parser->linestr = line; |
8990e307 | 720 | } |
f06b5848 DM |
721 | parser->oldoldbufptr = |
722 | parser->oldbufptr = | |
723 | parser->bufptr = | |
724 | parser->linestart = SvPVX(parser->linestr); | |
725 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
726 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 727 | } |
a687059c | 728 | |
e3abe207 DM |
729 | |
730 | /* delete a parser object */ | |
731 | ||
732 | void | |
733 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
734 | { | |
7918f24d NC |
735 | PERL_ARGS_ASSERT_PARSER_FREE; |
736 | ||
7c4baf47 | 737 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
738 | SvREFCNT_dec(parser->linestr); |
739 | ||
2f9285f8 DM |
740 | if (parser->rsfp == PerlIO_stdin()) |
741 | PerlIO_clearerr(parser->rsfp); | |
799361c3 SH |
742 | else if (parser->rsfp && (!parser->old_parser || |
743 | (parser->old_parser && parser->rsfp != parser->old_parser->rsfp))) | |
2f9285f8 | 744 | PerlIO_close(parser->rsfp); |
5486870f | 745 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 746 | |
e3abe207 DM |
747 | Safefree(parser->lex_brackstack); |
748 | Safefree(parser->lex_casestack); | |
749 | PL_parser = parser->old_parser; | |
750 | Safefree(parser); | |
751 | } | |
752 | ||
753 | ||
ffb4593c NT |
754 | /* |
755 | * Perl_lex_end | |
9cbb5ea2 GS |
756 | * Finalizer for lexing operations. Must be called when the parser is |
757 | * done with the lexer. | |
ffb4593c NT |
758 | */ |
759 | ||
463ee0b2 | 760 | void |
864dbfa3 | 761 | Perl_lex_end(pTHX) |
463ee0b2 | 762 | { |
97aff369 | 763 | dVAR; |
3280af22 | 764 | PL_doextract = FALSE; |
463ee0b2 LW |
765 | } |
766 | ||
ffb4593c | 767 | /* |
f0e67a1d Z |
768 | =for apidoc AmxU|SV *|PL_parser-E<gt>linestr |
769 | ||
770 | Buffer scalar containing the chunk currently under consideration of the | |
771 | text currently being lexed. This is always a plain string scalar (for | |
772 | which C<SvPOK> is true). It is not intended to be used as a scalar by | |
773 | normal scalar means; instead refer to the buffer directly by the pointer | |
774 | variables described below. | |
775 | ||
776 | The lexer maintains various C<char*> pointers to things in the | |
777 | C<PL_parser-E<gt>linestr> buffer. If C<PL_parser-E<gt>linestr> is ever | |
778 | reallocated, all of these pointers must be updated. Don't attempt to | |
779 | do this manually, but rather use L</lex_grow_linestr> if you need to | |
780 | reallocate the buffer. | |
781 | ||
782 | The content of the text chunk in the buffer is commonly exactly one | |
783 | complete line of input, up to and including a newline terminator, | |
784 | but there are situations where it is otherwise. The octets of the | |
785 | buffer may be intended to be interpreted as either UTF-8 or Latin-1. | |
786 | The function L</lex_bufutf8> tells you which. Do not use the C<SvUTF8> | |
787 | flag on this scalar, which may disagree with it. | |
788 | ||
789 | For direct examination of the buffer, the variable | |
790 | L</PL_parser-E<gt>bufend> points to the end of the buffer. The current | |
791 | lexing position is pointed to by L</PL_parser-E<gt>bufptr>. Direct use | |
792 | of these pointers is usually preferable to examination of the scalar | |
793 | through normal scalar means. | |
794 | ||
795 | =for apidoc AmxU|char *|PL_parser-E<gt>bufend | |
796 | ||
797 | Direct pointer to the end of the chunk of text currently being lexed, the | |
798 | end of the lexer buffer. This is equal to C<SvPVX(PL_parser-E<gt>linestr) | |
799 | + SvCUR(PL_parser-E<gt>linestr)>. A NUL character (zero octet) is | |
800 | always located at the end of the buffer, and does not count as part of | |
801 | the buffer's contents. | |
802 | ||
803 | =for apidoc AmxU|char *|PL_parser-E<gt>bufptr | |
804 | ||
805 | Points to the current position of lexing inside the lexer buffer. | |
806 | Characters around this point may be freely examined, within | |
807 | the range delimited by C<SvPVX(L</PL_parser-E<gt>linestr>)> and | |
808 | L</PL_parser-E<gt>bufend>. The octets of the buffer may be intended to be | |
809 | interpreted as either UTF-8 or Latin-1, as indicated by L</lex_bufutf8>. | |
810 | ||
811 | Lexing code (whether in the Perl core or not) moves this pointer past | |
812 | the characters that it consumes. It is also expected to perform some | |
813 | bookkeeping whenever a newline character is consumed. This movement | |
814 | can be more conveniently performed by the function L</lex_read_to>, | |
815 | which handles newlines appropriately. | |
816 | ||
817 | Interpretation of the buffer's octets can be abstracted out by | |
818 | using the slightly higher-level functions L</lex_peek_unichar> and | |
819 | L</lex_read_unichar>. | |
820 | ||
821 | =for apidoc AmxU|char *|PL_parser-E<gt>linestart | |
822 | ||
823 | Points to the start of the current line inside the lexer buffer. | |
824 | This is useful for indicating at which column an error occurred, and | |
825 | not much else. This must be updated by any lexing code that consumes | |
826 | a newline; the function L</lex_read_to> handles this detail. | |
827 | ||
828 | =cut | |
829 | */ | |
830 | ||
831 | /* | |
832 | =for apidoc Amx|bool|lex_bufutf8 | |
833 | ||
834 | Indicates whether the octets in the lexer buffer | |
835 | (L</PL_parser-E<gt>linestr>) should be interpreted as the UTF-8 encoding | |
836 | of Unicode characters. If not, they should be interpreted as Latin-1 | |
837 | characters. This is analogous to the C<SvUTF8> flag for scalars. | |
838 | ||
839 | In UTF-8 mode, it is not guaranteed that the lexer buffer actually | |
840 | contains valid UTF-8. Lexing code must be robust in the face of invalid | |
841 | encoding. | |
842 | ||
843 | The actual C<SvUTF8> flag of the L</PL_parser-E<gt>linestr> scalar | |
844 | is significant, but not the whole story regarding the input character | |
845 | encoding. Normally, when a file is being read, the scalar contains octets | |
846 | and its C<SvUTF8> flag is off, but the octets should be interpreted as | |
847 | UTF-8 if the C<use utf8> pragma is in effect. During a string eval, | |
848 | however, the scalar may have the C<SvUTF8> flag on, and in this case its | |
849 | octets should be interpreted as UTF-8 unless the C<use bytes> pragma | |
850 | is in effect. This logic may change in the future; use this function | |
851 | instead of implementing the logic yourself. | |
852 | ||
853 | =cut | |
854 | */ | |
855 | ||
856 | bool | |
857 | Perl_lex_bufutf8(pTHX) | |
858 | { | |
859 | return UTF; | |
860 | } | |
861 | ||
862 | /* | |
863 | =for apidoc Amx|char *|lex_grow_linestr|STRLEN len | |
864 | ||
865 | Reallocates the lexer buffer (L</PL_parser-E<gt>linestr>) to accommodate | |
866 | at least I<len> octets (including terminating NUL). Returns a | |
867 | pointer to the reallocated buffer. This is necessary before making | |
868 | any direct modification of the buffer that would increase its length. | |
869 | L</lex_stuff_pvn> provides a more convenient way to insert text into | |
870 | the buffer. | |
871 | ||
872 | Do not use C<SvGROW> or C<sv_grow> directly on C<PL_parser-E<gt>linestr>; | |
873 | this function updates all of the lexer's variables that point directly | |
874 | into the buffer. | |
875 | ||
876 | =cut | |
877 | */ | |
878 | ||
879 | char * | |
880 | Perl_lex_grow_linestr(pTHX_ STRLEN len) | |
881 | { | |
882 | SV *linestr; | |
883 | char *buf; | |
884 | STRLEN bufend_pos, bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
885 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
886 | linestr = PL_parser->linestr; | |
887 | buf = SvPVX(linestr); | |
888 | if (len <= SvLEN(linestr)) | |
889 | return buf; | |
890 | bufend_pos = PL_parser->bufend - buf; | |
891 | bufptr_pos = PL_parser->bufptr - buf; | |
892 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
893 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
894 | linestart_pos = PL_parser->linestart - buf; | |
895 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
896 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
897 | buf = sv_grow(linestr, len); | |
898 | PL_parser->bufend = buf + bufend_pos; | |
899 | PL_parser->bufptr = buf + bufptr_pos; | |
900 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
901 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
902 | PL_parser->linestart = buf + linestart_pos; | |
903 | if (PL_parser->last_uni) | |
904 | PL_parser->last_uni = buf + last_uni_pos; | |
905 | if (PL_parser->last_lop) | |
906 | PL_parser->last_lop = buf + last_lop_pos; | |
907 | return buf; | |
908 | } | |
909 | ||
910 | /* | |
83aa740e | 911 | =for apidoc Amx|void|lex_stuff_pvn|const char *pv|STRLEN len|U32 flags |
f0e67a1d Z |
912 | |
913 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
914 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
915 | reallocating the buffer if necessary. This means that lexing code that | |
916 | runs later will see the characters as if they had appeared in the input. | |
917 | It is not recommended to do this as part of normal parsing, and most | |
918 | uses of this facility run the risk of the inserted characters being | |
919 | interpreted in an unintended manner. | |
920 | ||
921 | The string to be inserted is represented by I<len> octets starting | |
922 | at I<pv>. These octets are interpreted as either UTF-8 or Latin-1, | |
923 | according to whether the C<LEX_STUFF_UTF8> flag is set in I<flags>. | |
924 | The characters are recoded for the lexer buffer, according to how the | |
925 | buffer is currently being interpreted (L</lex_bufutf8>). If a string | |
926 | to be interpreted is available as a Perl scalar, the L</lex_stuff_sv> | |
927 | function is more convenient. | |
928 | ||
929 | =cut | |
930 | */ | |
931 | ||
932 | void | |
83aa740e | 933 | Perl_lex_stuff_pvn(pTHX_ const char *pv, STRLEN len, U32 flags) |
f0e67a1d | 934 | { |
749123ff | 935 | dVAR; |
f0e67a1d Z |
936 | char *bufptr; |
937 | PERL_ARGS_ASSERT_LEX_STUFF_PVN; | |
938 | if (flags & ~(LEX_STUFF_UTF8)) | |
939 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_pvn"); | |
940 | if (UTF) { | |
941 | if (flags & LEX_STUFF_UTF8) { | |
942 | goto plain_copy; | |
943 | } else { | |
944 | STRLEN highhalf = 0; | |
83aa740e | 945 | const char *p, *e = pv+len; |
f0e67a1d Z |
946 | for (p = pv; p != e; p++) |
947 | highhalf += !!(((U8)*p) & 0x80); | |
948 | if (!highhalf) | |
949 | goto plain_copy; | |
950 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len+highhalf); | |
951 | bufptr = PL_parser->bufptr; | |
952 | Move(bufptr, bufptr+len+highhalf, PL_parser->bufend+1-bufptr, char); | |
255fdf19 Z |
953 | SvCUR_set(PL_parser->linestr, |
954 | SvCUR(PL_parser->linestr) + len+highhalf); | |
f0e67a1d Z |
955 | PL_parser->bufend += len+highhalf; |
956 | for (p = pv; p != e; p++) { | |
957 | U8 c = (U8)*p; | |
958 | if (c & 0x80) { | |
959 | *bufptr++ = (char)(0xc0 | (c >> 6)); | |
960 | *bufptr++ = (char)(0x80 | (c & 0x3f)); | |
961 | } else { | |
962 | *bufptr++ = (char)c; | |
963 | } | |
964 | } | |
965 | } | |
966 | } else { | |
967 | if (flags & LEX_STUFF_UTF8) { | |
968 | STRLEN highhalf = 0; | |
83aa740e | 969 | const char *p, *e = pv+len; |
f0e67a1d Z |
970 | for (p = pv; p != e; p++) { |
971 | U8 c = (U8)*p; | |
972 | if (c >= 0xc4) { | |
973 | Perl_croak(aTHX_ "Lexing code attempted to stuff " | |
974 | "non-Latin-1 character into Latin-1 input"); | |
975 | } else if (c >= 0xc2 && p+1 != e && | |
976 | (((U8)p[1]) & 0xc0) == 0x80) { | |
977 | p++; | |
978 | highhalf++; | |
979 | } else if (c >= 0x80) { | |
980 | /* malformed UTF-8 */ | |
981 | ENTER; | |
982 | SAVESPTR(PL_warnhook); | |
983 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
984 | utf8n_to_uvuni((U8*)p, e-p, NULL, 0); | |
985 | LEAVE; | |
986 | } | |
987 | } | |
988 | if (!highhalf) | |
989 | goto plain_copy; | |
990 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len-highhalf); | |
991 | bufptr = PL_parser->bufptr; | |
992 | Move(bufptr, bufptr+len-highhalf, PL_parser->bufend+1-bufptr, char); | |
255fdf19 Z |
993 | SvCUR_set(PL_parser->linestr, |
994 | SvCUR(PL_parser->linestr) + len-highhalf); | |
f0e67a1d Z |
995 | PL_parser->bufend += len-highhalf; |
996 | for (p = pv; p != e; p++) { | |
997 | U8 c = (U8)*p; | |
998 | if (c & 0x80) { | |
999 | *bufptr++ = (char)(((c & 0x3) << 6) | (p[1] & 0x3f)); | |
1000 | p++; | |
1001 | } else { | |
1002 | *bufptr++ = (char)c; | |
1003 | } | |
1004 | } | |
1005 | } else { | |
1006 | plain_copy: | |
1007 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len); | |
1008 | bufptr = PL_parser->bufptr; | |
1009 | Move(bufptr, bufptr+len, PL_parser->bufend+1-bufptr, char); | |
255fdf19 | 1010 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) + len); |
f0e67a1d Z |
1011 | PL_parser->bufend += len; |
1012 | Copy(pv, bufptr, len, char); | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | =for apidoc Amx|void|lex_stuff_sv|SV *sv|U32 flags | |
1019 | ||
1020 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
1021 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
1022 | reallocating the buffer if necessary. This means that lexing code that | |
1023 | runs later will see the characters as if they had appeared in the input. | |
1024 | It is not recommended to do this as part of normal parsing, and most | |
1025 | uses of this facility run the risk of the inserted characters being | |
1026 | interpreted in an unintended manner. | |
1027 | ||
1028 | The string to be inserted is the string value of I<sv>. The characters | |
1029 | are recoded for the lexer buffer, according to how the buffer is currently | |
1030 | being interpreted (L</lex_bufutf8>). If a string to be interpreted is | |
1031 | not already a Perl scalar, the L</lex_stuff_pvn> function avoids the | |
1032 | need to construct a scalar. | |
1033 | ||
1034 | =cut | |
1035 | */ | |
1036 | ||
1037 | void | |
1038 | Perl_lex_stuff_sv(pTHX_ SV *sv, U32 flags) | |
1039 | { | |
1040 | char *pv; | |
1041 | STRLEN len; | |
1042 | PERL_ARGS_ASSERT_LEX_STUFF_SV; | |
1043 | if (flags) | |
1044 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_sv"); | |
1045 | pv = SvPV(sv, len); | |
1046 | lex_stuff_pvn(pv, len, flags | (SvUTF8(sv) ? LEX_STUFF_UTF8 : 0)); | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | =for apidoc Amx|void|lex_unstuff|char *ptr | |
1051 | ||
1052 | Discards text about to be lexed, from L</PL_parser-E<gt>bufptr> up to | |
1053 | I<ptr>. Text following I<ptr> will be moved, and the buffer shortened. | |
1054 | This hides the discarded text from any lexing code that runs later, | |
1055 | as if the text had never appeared. | |
1056 | ||
1057 | This is not the normal way to consume lexed text. For that, use | |
1058 | L</lex_read_to>. | |
1059 | ||
1060 | =cut | |
1061 | */ | |
1062 | ||
1063 | void | |
1064 | Perl_lex_unstuff(pTHX_ char *ptr) | |
1065 | { | |
1066 | char *buf, *bufend; | |
1067 | STRLEN unstuff_len; | |
1068 | PERL_ARGS_ASSERT_LEX_UNSTUFF; | |
1069 | buf = PL_parser->bufptr; | |
1070 | if (ptr < buf) | |
1071 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1072 | if (ptr == buf) | |
1073 | return; | |
1074 | bufend = PL_parser->bufend; | |
1075 | if (ptr > bufend) | |
1076 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1077 | unstuff_len = ptr - buf; | |
1078 | Move(ptr, buf, bufend+1-ptr, char); | |
1079 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - unstuff_len); | |
1080 | PL_parser->bufend = bufend - unstuff_len; | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | =for apidoc Amx|void|lex_read_to|char *ptr | |
1085 | ||
1086 | Consume text in the lexer buffer, from L</PL_parser-E<gt>bufptr> up | |
1087 | to I<ptr>. This advances L</PL_parser-E<gt>bufptr> to match I<ptr>, | |
1088 | performing the correct bookkeeping whenever a newline character is passed. | |
1089 | This is the normal way to consume lexed text. | |
1090 | ||
1091 | Interpretation of the buffer's octets can be abstracted out by | |
1092 | using the slightly higher-level functions L</lex_peek_unichar> and | |
1093 | L</lex_read_unichar>. | |
1094 | ||
1095 | =cut | |
1096 | */ | |
1097 | ||
1098 | void | |
1099 | Perl_lex_read_to(pTHX_ char *ptr) | |
1100 | { | |
1101 | char *s; | |
1102 | PERL_ARGS_ASSERT_LEX_READ_TO; | |
1103 | s = PL_parser->bufptr; | |
1104 | if (ptr < s || ptr > PL_parser->bufend) | |
1105 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_to"); | |
1106 | for (; s != ptr; s++) | |
1107 | if (*s == '\n') { | |
1108 | CopLINE_inc(PL_curcop); | |
1109 | PL_parser->linestart = s+1; | |
1110 | } | |
1111 | PL_parser->bufptr = ptr; | |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | =for apidoc Amx|void|lex_discard_to|char *ptr | |
1116 | ||
1117 | Discards the first part of the L</PL_parser-E<gt>linestr> buffer, | |
1118 | up to I<ptr>. The remaining content of the buffer will be moved, and | |
1119 | all pointers into the buffer updated appropriately. I<ptr> must not | |
1120 | be later in the buffer than the position of L</PL_parser-E<gt>bufptr>: | |
1121 | it is not permitted to discard text that has yet to be lexed. | |
1122 | ||
1123 | Normally it is not necessarily to do this directly, because it suffices to | |
1124 | use the implicit discarding behaviour of L</lex_next_chunk> and things | |
1125 | based on it. However, if a token stretches across multiple lines, | |
1f317c95 | 1126 | and the lexing code has kept multiple lines of text in the buffer for |
f0e67a1d Z |
1127 | that purpose, then after completion of the token it would be wise to |
1128 | explicitly discard the now-unneeded earlier lines, to avoid future | |
1129 | multi-line tokens growing the buffer without bound. | |
1130 | ||
1131 | =cut | |
1132 | */ | |
1133 | ||
1134 | void | |
1135 | Perl_lex_discard_to(pTHX_ char *ptr) | |
1136 | { | |
1137 | char *buf; | |
1138 | STRLEN discard_len; | |
1139 | PERL_ARGS_ASSERT_LEX_DISCARD_TO; | |
1140 | buf = SvPVX(PL_parser->linestr); | |
1141 | if (ptr < buf) | |
1142 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1143 | if (ptr == buf) | |
1144 | return; | |
1145 | if (ptr > PL_parser->bufptr) | |
1146 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1147 | discard_len = ptr - buf; | |
1148 | if (PL_parser->oldbufptr < ptr) | |
1149 | PL_parser->oldbufptr = ptr; | |
1150 | if (PL_parser->oldoldbufptr < ptr) | |
1151 | PL_parser->oldoldbufptr = ptr; | |
1152 | if (PL_parser->last_uni && PL_parser->last_uni < ptr) | |
1153 | PL_parser->last_uni = NULL; | |
1154 | if (PL_parser->last_lop && PL_parser->last_lop < ptr) | |
1155 | PL_parser->last_lop = NULL; | |
1156 | Move(ptr, buf, PL_parser->bufend+1-ptr, char); | |
1157 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - discard_len); | |
1158 | PL_parser->bufend -= discard_len; | |
1159 | PL_parser->bufptr -= discard_len; | |
1160 | PL_parser->oldbufptr -= discard_len; | |
1161 | PL_parser->oldoldbufptr -= discard_len; | |
1162 | if (PL_parser->last_uni) | |
1163 | PL_parser->last_uni -= discard_len; | |
1164 | if (PL_parser->last_lop) | |
1165 | PL_parser->last_lop -= discard_len; | |
1166 | } | |
1167 | ||
1168 | /* | |
1169 | =for apidoc Amx|bool|lex_next_chunk|U32 flags | |
1170 | ||
1171 | Reads in the next chunk of text to be lexed, appending it to | |
1172 | L</PL_parser-E<gt>linestr>. This should be called when lexing code has | |
1173 | looked to the end of the current chunk and wants to know more. It is | |
1174 | usual, but not necessary, for lexing to have consumed the entirety of | |
1175 | the current chunk at this time. | |
1176 | ||
1177 | If L</PL_parser-E<gt>bufptr> is pointing to the very end of the current | |
1178 | chunk (i.e., the current chunk has been entirely consumed), normally the | |
1179 | current chunk will be discarded at the same time that the new chunk is | |
1180 | read in. If I<flags> includes C<LEX_KEEP_PREVIOUS>, the current chunk | |
1181 | will not be discarded. If the current chunk has not been entirely | |
1182 | consumed, then it will not be discarded regardless of the flag. | |
1183 | ||
1184 | Returns true if some new text was added to the buffer, or false if the | |
1185 | buffer has reached the end of the input text. | |
1186 | ||
1187 | =cut | |
1188 | */ | |
1189 | ||
1190 | #define LEX_FAKE_EOF 0x80000000 | |
1191 | ||
1192 | bool | |
1193 | Perl_lex_next_chunk(pTHX_ U32 flags) | |
1194 | { | |
1195 | SV *linestr; | |
1196 | char *buf; | |
1197 | STRLEN old_bufend_pos, new_bufend_pos; | |
1198 | STRLEN bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
1199 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
17cc9359 | 1200 | bool got_some_for_debugger = 0; |
f0e67a1d Z |
1201 | bool got_some; |
1202 | if (flags & ~(LEX_KEEP_PREVIOUS|LEX_FAKE_EOF)) | |
1203 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_next_chunk"); | |
f0e67a1d Z |
1204 | linestr = PL_parser->linestr; |
1205 | buf = SvPVX(linestr); | |
1206 | if (!(flags & LEX_KEEP_PREVIOUS) && | |
1207 | PL_parser->bufptr == PL_parser->bufend) { | |
1208 | old_bufend_pos = bufptr_pos = oldbufptr_pos = oldoldbufptr_pos = 0; | |
1209 | linestart_pos = 0; | |
1210 | if (PL_parser->last_uni != PL_parser->bufend) | |
1211 | PL_parser->last_uni = NULL; | |
1212 | if (PL_parser->last_lop != PL_parser->bufend) | |
1213 | PL_parser->last_lop = NULL; | |
1214 | last_uni_pos = last_lop_pos = 0; | |
1215 | *buf = 0; | |
1216 | SvCUR(linestr) = 0; | |
1217 | } else { | |
1218 | old_bufend_pos = PL_parser->bufend - buf; | |
1219 | bufptr_pos = PL_parser->bufptr - buf; | |
1220 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
1221 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
1222 | linestart_pos = PL_parser->linestart - buf; | |
1223 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
1224 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
1225 | } | |
1226 | if (flags & LEX_FAKE_EOF) { | |
1227 | goto eof; | |
1228 | } else if (!PL_parser->rsfp) { | |
1229 | got_some = 0; | |
1230 | } else if (filter_gets(linestr, old_bufend_pos)) { | |
1231 | got_some = 1; | |
17cc9359 | 1232 | got_some_for_debugger = 1; |
f0e67a1d | 1233 | } else { |
580561a3 Z |
1234 | if (!SvPOK(linestr)) /* can get undefined by filter_gets */ |
1235 | sv_setpvs(linestr, ""); | |
f0e67a1d Z |
1236 | eof: |
1237 | /* End of real input. Close filehandle (unless it was STDIN), | |
1238 | * then add implicit termination. | |
1239 | */ | |
1240 | if ((PerlIO*)PL_parser->rsfp == PerlIO_stdin()) | |
1241 | PerlIO_clearerr(PL_parser->rsfp); | |
1242 | else if (PL_parser->rsfp) | |
1243 | (void)PerlIO_close(PL_parser->rsfp); | |
1244 | PL_parser->rsfp = NULL; | |
1245 | PL_doextract = FALSE; | |
1246 | #ifdef PERL_MAD | |
1247 | if (PL_madskills && !PL_in_eval && (PL_minus_p || PL_minus_n)) | |
1248 | PL_faketokens = 1; | |
1249 | #endif | |
1250 | if (!PL_in_eval && PL_minus_p) { | |
1251 | sv_catpvs(linestr, | |
1252 | /*{*/";}continue{print or die qq(-p destination: $!\\n);}"); | |
1253 | PL_minus_n = PL_minus_p = 0; | |
1254 | } else if (!PL_in_eval && PL_minus_n) { | |
1255 | sv_catpvs(linestr, /*{*/";}"); | |
1256 | PL_minus_n = 0; | |
1257 | } else | |
1258 | sv_catpvs(linestr, ";"); | |
1259 | got_some = 1; | |
1260 | } | |
1261 | buf = SvPVX(linestr); | |
1262 | new_bufend_pos = SvCUR(linestr); | |
1263 | PL_parser->bufend = buf + new_bufend_pos; | |
1264 | PL_parser->bufptr = buf + bufptr_pos; | |
1265 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
1266 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
1267 | PL_parser->linestart = buf + linestart_pos; | |
1268 | if (PL_parser->last_uni) | |
1269 | PL_parser->last_uni = buf + last_uni_pos; | |
1270 | if (PL_parser->last_lop) | |
1271 | PL_parser->last_lop = buf + last_lop_pos; | |
17cc9359 | 1272 | if (got_some_for_debugger && (PERLDB_LINE || PERLDB_SAVESRC) && |
f0e67a1d Z |
1273 | PL_curstash != PL_debstash) { |
1274 | /* debugger active and we're not compiling the debugger code, | |
1275 | * so store the line into the debugger's array of lines | |
1276 | */ | |
1277 | update_debugger_info(NULL, buf+old_bufend_pos, | |
1278 | new_bufend_pos-old_bufend_pos); | |
1279 | } | |
1280 | return got_some; | |
1281 | } | |
1282 | ||
1283 | /* | |
1284 | =for apidoc Amx|I32|lex_peek_unichar|U32 flags | |
1285 | ||
1286 | Looks ahead one (Unicode) character in the text currently being lexed. | |
1287 | Returns the codepoint (unsigned integer value) of the next character, | |
1288 | or -1 if lexing has reached the end of the input text. To consume the | |
1289 | peeked character, use L</lex_read_unichar>. | |
1290 | ||
1291 | If the next character is in (or extends into) the next chunk of input | |
1292 | text, the next chunk will be read in. Normally the current chunk will be | |
1293 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1294 | then the current chunk will not be discarded. | |
1295 | ||
1296 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1297 | is encountered, an exception is generated. | |
1298 | ||
1299 | =cut | |
1300 | */ | |
1301 | ||
1302 | I32 | |
1303 | Perl_lex_peek_unichar(pTHX_ U32 flags) | |
1304 | { | |
749123ff | 1305 | dVAR; |
f0e67a1d Z |
1306 | char *s, *bufend; |
1307 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1308 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_peek_unichar"); | |
1309 | s = PL_parser->bufptr; | |
1310 | bufend = PL_parser->bufend; | |
1311 | if (UTF) { | |
1312 | U8 head; | |
1313 | I32 unichar; | |
1314 | STRLEN len, retlen; | |
1315 | if (s == bufend) { | |
1316 | if (!lex_next_chunk(flags)) | |
1317 | return -1; | |
1318 | s = PL_parser->bufptr; | |
1319 | bufend = PL_parser->bufend; | |
1320 | } | |
1321 | head = (U8)*s; | |
1322 | if (!(head & 0x80)) | |
1323 | return head; | |
1324 | if (head & 0x40) { | |
1325 | len = PL_utf8skip[head]; | |
1326 | while ((STRLEN)(bufend-s) < len) { | |
1327 | if (!lex_next_chunk(flags | LEX_KEEP_PREVIOUS)) | |
1328 | break; | |
1329 | s = PL_parser->bufptr; | |
1330 | bufend = PL_parser->bufend; | |
1331 | } | |
1332 | } | |
1333 | unichar = utf8n_to_uvuni((U8*)s, bufend-s, &retlen, UTF8_CHECK_ONLY); | |
1334 | if (retlen == (STRLEN)-1) { | |
1335 | /* malformed UTF-8 */ | |
1336 | ENTER; | |
1337 | SAVESPTR(PL_warnhook); | |
1338 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
1339 | utf8n_to_uvuni((U8*)s, bufend-s, NULL, 0); | |
1340 | LEAVE; | |
1341 | } | |
1342 | return unichar; | |
1343 | } else { | |
1344 | if (s == bufend) { | |
1345 | if (!lex_next_chunk(flags)) | |
1346 | return -1; | |
1347 | s = PL_parser->bufptr; | |
1348 | } | |
1349 | return (U8)*s; | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | /* | |
1354 | =for apidoc Amx|I32|lex_read_unichar|U32 flags | |
1355 | ||
1356 | Reads the next (Unicode) character in the text currently being lexed. | |
1357 | Returns the codepoint (unsigned integer value) of the character read, | |
1358 | and moves L</PL_parser-E<gt>bufptr> past the character, or returns -1 | |
1359 | if lexing has reached the end of the input text. To non-destructively | |
1360 | examine the next character, use L</lex_peek_unichar> instead. | |
1361 | ||
1362 | If the next character is in (or extends into) the next chunk of input | |
1363 | text, the next chunk will be read in. Normally the current chunk will be | |
1364 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1365 | then the current chunk will not be discarded. | |
1366 | ||
1367 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1368 | is encountered, an exception is generated. | |
1369 | ||
1370 | =cut | |
1371 | */ | |
1372 | ||
1373 | I32 | |
1374 | Perl_lex_read_unichar(pTHX_ U32 flags) | |
1375 | { | |
1376 | I32 c; | |
1377 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1378 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_unichar"); | |
1379 | c = lex_peek_unichar(flags); | |
1380 | if (c != -1) { | |
1381 | if (c == '\n') | |
1382 | CopLINE_inc(PL_curcop); | |
1383 | PL_parser->bufptr += UTF8SKIP(PL_parser->bufptr); | |
1384 | } | |
1385 | return c; | |
1386 | } | |
1387 | ||
1388 | /* | |
1389 | =for apidoc Amx|void|lex_read_space|U32 flags | |
1390 | ||
1391 | Reads optional spaces, in Perl style, in the text currently being | |
1392 | lexed. The spaces may include ordinary whitespace characters and | |
1393 | Perl-style comments. C<#line> directives are processed if encountered. | |
1394 | L</PL_parser-E<gt>bufptr> is moved past the spaces, so that it points | |
1395 | at a non-space character (or the end of the input text). | |
1396 | ||
1397 | If spaces extend into the next chunk of input text, the next chunk will | |
1398 | be read in. Normally the current chunk will be discarded at the same | |
1399 | time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> then the current | |
1400 | chunk will not be discarded. | |
1401 | ||
1402 | =cut | |
1403 | */ | |
1404 | ||
f0998909 Z |
1405 | #define LEX_NO_NEXT_CHUNK 0x80000000 |
1406 | ||
f0e67a1d Z |
1407 | void |
1408 | Perl_lex_read_space(pTHX_ U32 flags) | |
1409 | { | |
1410 | char *s, *bufend; | |
1411 | bool need_incline = 0; | |
f0998909 | 1412 | if (flags & ~(LEX_KEEP_PREVIOUS|LEX_NO_NEXT_CHUNK)) |
f0e67a1d Z |
1413 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_space"); |
1414 | #ifdef PERL_MAD | |
1415 | if (PL_skipwhite) { | |
1416 | sv_free(PL_skipwhite); | |
1417 | PL_skipwhite = NULL; | |
1418 | } | |
1419 | if (PL_madskills) | |
1420 | PL_skipwhite = newSVpvs(""); | |
1421 | #endif /* PERL_MAD */ | |
1422 | s = PL_parser->bufptr; | |
1423 | bufend = PL_parser->bufend; | |
1424 | while (1) { | |
1425 | char c = *s; | |
1426 | if (c == '#') { | |
1427 | do { | |
1428 | c = *++s; | |
1429 | } while (!(c == '\n' || (c == 0 && s == bufend))); | |
1430 | } else if (c == '\n') { | |
1431 | s++; | |
1432 | PL_parser->linestart = s; | |
1433 | if (s == bufend) | |
1434 | need_incline = 1; | |
1435 | else | |
1436 | incline(s); | |
1437 | } else if (isSPACE(c)) { | |
1438 | s++; | |
1439 | } else if (c == 0 && s == bufend) { | |
1440 | bool got_more; | |
1441 | #ifdef PERL_MAD | |
1442 | if (PL_madskills) | |
1443 | sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr); | |
1444 | #endif /* PERL_MAD */ | |
f0998909 Z |
1445 | if (flags & LEX_NO_NEXT_CHUNK) |
1446 | break; | |
f0e67a1d Z |
1447 | PL_parser->bufptr = s; |
1448 | CopLINE_inc(PL_curcop); | |
1449 | got_more = lex_next_chunk(flags); | |
1450 | CopLINE_dec(PL_curcop); | |
1451 | s = PL_parser->bufptr; | |
1452 | bufend = PL_parser->bufend; | |
1453 | if (!got_more) | |
1454 | break; | |
1455 | if (need_incline && PL_parser->rsfp) { | |
1456 | incline(s); | |
1457 | need_incline = 0; | |
1458 | } | |
1459 | } else { | |
1460 | break; | |
1461 | } | |
1462 | } | |
1463 | #ifdef PERL_MAD | |
1464 | if (PL_madskills) | |
1465 | sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr); | |
1466 | #endif /* PERL_MAD */ | |
1467 | PL_parser->bufptr = s; | |
1468 | } | |
1469 | ||
1470 | /* | |
ffb4593c NT |
1471 | * S_incline |
1472 | * This subroutine has nothing to do with tilting, whether at windmills | |
1473 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 1474 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 1475 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
1476 | * # line 500 "foo.pm" |
1477 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
1478 | */ |
1479 | ||
76e3520e | 1480 | STATIC void |
d9095cec | 1481 | S_incline(pTHX_ const char *s) |
463ee0b2 | 1482 | { |
97aff369 | 1483 | dVAR; |
d9095cec NC |
1484 | const char *t; |
1485 | const char *n; | |
1486 | const char *e; | |
463ee0b2 | 1487 | |
7918f24d NC |
1488 | PERL_ARGS_ASSERT_INCLINE; |
1489 | ||
57843af0 | 1490 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
1491 | if (*s++ != '#') |
1492 | return; | |
d4c19fe8 AL |
1493 | while (SPACE_OR_TAB(*s)) |
1494 | s++; | |
73659bf1 GS |
1495 | if (strnEQ(s, "line", 4)) |
1496 | s += 4; | |
1497 | else | |
1498 | return; | |
084592ab | 1499 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 1500 | s++; |
4e553d73 | 1501 | else |
73659bf1 | 1502 | return; |
d4c19fe8 AL |
1503 | while (SPACE_OR_TAB(*s)) |
1504 | s++; | |
463ee0b2 LW |
1505 | if (!isDIGIT(*s)) |
1506 | return; | |
d4c19fe8 | 1507 | |
463ee0b2 LW |
1508 | n = s; |
1509 | while (isDIGIT(*s)) | |
1510 | s++; | |
07714eb4 | 1511 | if (!SPACE_OR_TAB(*s) && *s != '\r' && *s != '\n' && *s != '\0') |
26b6dc3f | 1512 | return; |
bf4acbe4 | 1513 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 1514 | s++; |
73659bf1 | 1515 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 1516 | s++; |
73659bf1 GS |
1517 | e = t + 1; |
1518 | } | |
463ee0b2 | 1519 | else { |
c35e046a AL |
1520 | t = s; |
1521 | while (!isSPACE(*t)) | |
1522 | t++; | |
73659bf1 | 1523 | e = t; |
463ee0b2 | 1524 | } |
bf4acbe4 | 1525 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
1526 | e++; |
1527 | if (*e != '\n' && *e != '\0') | |
1528 | return; /* false alarm */ | |
1529 | ||
f4dd75d9 | 1530 | if (t - s > 0) { |
d9095cec | 1531 | const STRLEN len = t - s; |
8a5ee598 | 1532 | #ifndef USE_ITHREADS |
19bad673 NC |
1533 | SV *const temp_sv = CopFILESV(PL_curcop); |
1534 | const char *cf; | |
1535 | STRLEN tmplen; | |
1536 | ||
1537 | if (temp_sv) { | |
1538 | cf = SvPVX(temp_sv); | |
1539 | tmplen = SvCUR(temp_sv); | |
1540 | } else { | |
1541 | cf = NULL; | |
1542 | tmplen = 0; | |
1543 | } | |
1544 | ||
42d9b98d | 1545 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { |
e66cf94c RGS |
1546 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
1547 | * to *{"::_<newfilename"} */ | |
44867030 NC |
1548 | /* However, the long form of evals is only turned on by the |
1549 | debugger - usually they're "(eval %lu)" */ | |
1550 | char smallbuf[128]; | |
1551 | char *tmpbuf; | |
1552 | GV **gvp; | |
d9095cec | 1553 | STRLEN tmplen2 = len; |
798b63bc | 1554 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
1555 | tmpbuf = smallbuf; |
1556 | else | |
2ae0db35 | 1557 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
1558 | tmpbuf[0] = '_'; |
1559 | tmpbuf[1] = '<'; | |
2ae0db35 | 1560 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 1561 | tmplen += 2; |
8a5ee598 RGS |
1562 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
1563 | if (gvp) { | |
44867030 NC |
1564 | char *tmpbuf2; |
1565 | GV *gv2; | |
1566 | ||
1567 | if (tmplen2 + 2 <= sizeof smallbuf) | |
1568 | tmpbuf2 = smallbuf; | |
1569 | else | |
1570 | Newx(tmpbuf2, tmplen2 + 2, char); | |
1571 | ||
1572 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
1573 | /* Either they malloc'd it, or we malloc'd it, | |
1574 | so no prefix is present in ours. */ | |
1575 | tmpbuf2[0] = '_'; | |
1576 | tmpbuf2[1] = '<'; | |
1577 | } | |
1578 | ||
1579 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
1580 | tmplen2 += 2; | |
1581 | ||
8a5ee598 | 1582 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 1583 | if (!isGV(gv2)) { |
8a5ee598 | 1584 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
1585 | /* adjust ${"::_<newfilename"} to store the new file name */ |
1586 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
3cb1dbc6 NC |
1587 | GvHV(gv2) = MUTABLE_HV(SvREFCNT_inc(GvHV(*gvp))); |
1588 | GvAV(gv2) = MUTABLE_AV(SvREFCNT_inc(GvAV(*gvp))); | |
e5527e4b | 1589 | } |
44867030 NC |
1590 | |
1591 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 1592 | } |
e66cf94c | 1593 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 1594 | } |
8a5ee598 | 1595 | #endif |
05ec9bb3 | 1596 | CopFILE_free(PL_curcop); |
d9095cec | 1597 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 1598 | } |
57843af0 | 1599 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
1600 | } |
1601 | ||
29595ff2 | 1602 | #ifdef PERL_MAD |
cd81e915 | 1603 | /* skip space before PL_thistoken */ |
29595ff2 NC |
1604 | |
1605 | STATIC char * | |
1606 | S_skipspace0(pTHX_ register char *s) | |
1607 | { | |
7918f24d NC |
1608 | PERL_ARGS_ASSERT_SKIPSPACE0; |
1609 | ||
29595ff2 NC |
1610 | s = skipspace(s); |
1611 | if (!PL_madskills) | |
1612 | return s; | |
cd81e915 NC |
1613 | if (PL_skipwhite) { |
1614 | if (!PL_thiswhite) | |
6b29d1f5 | 1615 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
1616 | sv_catsv(PL_thiswhite, PL_skipwhite); |
1617 | sv_free(PL_skipwhite); | |
1618 | PL_skipwhite = 0; | |
1619 | } | |
1620 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
1621 | return s; |
1622 | } | |
1623 | ||
cd81e915 | 1624 | /* skip space after PL_thistoken */ |
29595ff2 NC |
1625 | |
1626 | STATIC char * | |
1627 | S_skipspace1(pTHX_ register char *s) | |
1628 | { | |
d4c19fe8 | 1629 | const char *start = s; |
29595ff2 NC |
1630 | I32 startoff = start - SvPVX(PL_linestr); |
1631 | ||
7918f24d NC |
1632 | PERL_ARGS_ASSERT_SKIPSPACE1; |
1633 | ||
29595ff2 NC |
1634 | s = skipspace(s); |
1635 | if (!PL_madskills) | |
1636 | return s; | |
1637 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 1638 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 1639 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
1640 | PL_thistoken = newSVpvn(tstart, start - tstart); |
1641 | } | |
1642 | PL_realtokenstart = -1; | |
1643 | if (PL_skipwhite) { | |
1644 | if (!PL_nextwhite) | |
6b29d1f5 | 1645 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
1646 | sv_catsv(PL_nextwhite, PL_skipwhite); |
1647 | sv_free(PL_skipwhite); | |
1648 | PL_skipwhite = 0; | |
29595ff2 NC |
1649 | } |
1650 | return s; | |
1651 | } | |
1652 | ||
1653 | STATIC char * | |
1654 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
1655 | { | |
c35e046a AL |
1656 | char *start; |
1657 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
1658 | const I32 startoff = s - SvPVX(PL_linestr); | |
1659 | ||
7918f24d NC |
1660 | PERL_ARGS_ASSERT_SKIPSPACE2; |
1661 | ||
29595ff2 NC |
1662 | s = skipspace(s); |
1663 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
1664 | if (!PL_madskills || !svp) | |
1665 | return s; | |
1666 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 1667 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 1668 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
1669 | PL_thistoken = newSVpvn(tstart, start - tstart); |
1670 | PL_realtokenstart = -1; | |
29595ff2 | 1671 | } |
cd81e915 | 1672 | if (PL_skipwhite) { |
29595ff2 | 1673 | if (!*svp) |
6b29d1f5 | 1674 | *svp = newSVpvs(""); |
cd81e915 NC |
1675 | sv_setsv(*svp, PL_skipwhite); |
1676 | sv_free(PL_skipwhite); | |
1677 | PL_skipwhite = 0; | |
29595ff2 NC |
1678 | } |
1679 | ||
1680 | return s; | |
1681 | } | |
1682 | #endif | |
1683 | ||
80a702cd | 1684 | STATIC void |
15f169a1 | 1685 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *const buf, STRLEN len) |
80a702cd RGS |
1686 | { |
1687 | AV *av = CopFILEAVx(PL_curcop); | |
1688 | if (av) { | |
b9f83d2f | 1689 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
1690 | if (orig_sv) |
1691 | sv_setsv(sv, orig_sv); | |
1692 | else | |
1693 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
1694 | (void)SvIOK_on(sv); |
1695 | SvIV_set(sv, 0); | |
1696 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
1697 | } | |
1698 | } | |
1699 | ||
ffb4593c NT |
1700 | /* |
1701 | * S_skipspace | |
1702 | * Called to gobble the appropriate amount and type of whitespace. | |
1703 | * Skips comments as well. | |
1704 | */ | |
1705 | ||
76e3520e | 1706 | STATIC char * |
cea2e8a9 | 1707 | S_skipspace(pTHX_ register char *s) |
a687059c | 1708 | { |
5db06880 | 1709 | #ifdef PERL_MAD |
f0e67a1d Z |
1710 | char *start = s; |
1711 | #endif /* PERL_MAD */ | |
7918f24d | 1712 | PERL_ARGS_ASSERT_SKIPSPACE; |
f0e67a1d | 1713 | #ifdef PERL_MAD |
cd81e915 NC |
1714 | if (PL_skipwhite) { |
1715 | sv_free(PL_skipwhite); | |
f0e67a1d | 1716 | PL_skipwhite = NULL; |
5db06880 | 1717 | } |
f0e67a1d | 1718 | #endif /* PERL_MAD */ |
3280af22 | 1719 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 1720 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 1721 | s++; |
f0e67a1d Z |
1722 | } else { |
1723 | STRLEN bufptr_pos = PL_bufptr - SvPVX(PL_linestr); | |
1724 | PL_bufptr = s; | |
f0998909 Z |
1725 | lex_read_space(LEX_KEEP_PREVIOUS | |
1726 | (PL_sublex_info.sub_inwhat || PL_lex_state == LEX_FORMLINE ? | |
1727 | LEX_NO_NEXT_CHUNK : 0)); | |
3280af22 | 1728 | s = PL_bufptr; |
f0e67a1d Z |
1729 | PL_bufptr = SvPVX(PL_linestr) + bufptr_pos; |
1730 | if (PL_linestart > PL_bufptr) | |
1731 | PL_bufptr = PL_linestart; | |
1732 | return s; | |
463ee0b2 | 1733 | } |
5db06880 | 1734 | #ifdef PERL_MAD |
f0e67a1d Z |
1735 | if (PL_madskills) |
1736 | PL_skipwhite = newSVpvn(start, s-start); | |
1737 | #endif /* PERL_MAD */ | |
5db06880 | 1738 | return s; |
a687059c | 1739 | } |
378cc40b | 1740 | |
ffb4593c NT |
1741 | /* |
1742 | * S_check_uni | |
1743 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1744 | * used. An ambiguous piece of code would be: | |
1745 | * rand + 5 | |
1746 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1747 | * the +5 is its argument. | |
1748 | */ | |
1749 | ||
76e3520e | 1750 | STATIC void |
cea2e8a9 | 1751 | S_check_uni(pTHX) |
ba106d47 | 1752 | { |
97aff369 | 1753 | dVAR; |
d4c19fe8 AL |
1754 | const char *s; |
1755 | const char *t; | |
2f3197b3 | 1756 | |
3280af22 | 1757 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1758 | return; |
3280af22 NIS |
1759 | while (isSPACE(*PL_last_uni)) |
1760 | PL_last_uni++; | |
c35e046a AL |
1761 | s = PL_last_uni; |
1762 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1763 | s++; | |
3280af22 | 1764 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1765 | return; |
6136c704 | 1766 | |
9b387841 NC |
1767 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), |
1768 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", | |
1769 | (int)(s - PL_last_uni), PL_last_uni); | |
2f3197b3 LW |
1770 | } |
1771 | ||
ffb4593c NT |
1772 | /* |
1773 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1774 | * with a subroutine, S_lop() for which LOP is just another name. | |
1775 | */ | |
1776 | ||
a0d0e21e LW |
1777 | #define LOP(f,x) return lop(f,x,s) |
1778 | ||
ffb4593c NT |
1779 | /* |
1780 | * S_lop | |
1781 | * Build a list operator (or something that might be one). The rules: | |
1782 | * - if we have a next token, then it's a list operator [why?] | |
1783 | * - if the next thing is an opening paren, then it's a function | |
1784 | * - else it's a list operator | |
1785 | */ | |
1786 | ||
76e3520e | 1787 | STATIC I32 |
a0be28da | 1788 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1789 | { |
97aff369 | 1790 | dVAR; |
7918f24d NC |
1791 | |
1792 | PERL_ARGS_ASSERT_LOP; | |
1793 | ||
6154021b | 1794 | pl_yylval.ival = f; |
35c8bce7 | 1795 | CLINE; |
3280af22 NIS |
1796 | PL_expect = x; |
1797 | PL_bufptr = s; | |
1798 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1799 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1800 | #ifdef PERL_MAD |
1801 | if (PL_lasttoke) | |
1802 | return REPORT(LSTOP); | |
1803 | #else | |
3280af22 | 1804 | if (PL_nexttoke) |
bbf60fe6 | 1805 | return REPORT(LSTOP); |
5db06880 | 1806 | #endif |
79072805 | 1807 | if (*s == '(') |
bbf60fe6 | 1808 | return REPORT(FUNC); |
29595ff2 | 1809 | s = PEEKSPACE(s); |
79072805 | 1810 | if (*s == '(') |
bbf60fe6 | 1811 | return REPORT(FUNC); |
79072805 | 1812 | else |
bbf60fe6 | 1813 | return REPORT(LSTOP); |
79072805 LW |
1814 | } |
1815 | ||
5db06880 NC |
1816 | #ifdef PERL_MAD |
1817 | /* | |
1818 | * S_start_force | |
1819 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1820 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1821 | * on the "pop" end. | |
1822 | */ | |
1823 | ||
1824 | STATIC void | |
1825 | S_start_force(pTHX_ int where) | |
1826 | { | |
1827 | int i; | |
1828 | ||
cd81e915 | 1829 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1830 | where = PL_lasttoke; |
cd81e915 NC |
1831 | assert(PL_curforce < 0 || PL_curforce == where); |
1832 | if (PL_curforce != where) { | |
5db06880 NC |
1833 | for (i = PL_lasttoke; i > where; --i) { |
1834 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1835 | } | |
1836 | PL_lasttoke++; | |
1837 | } | |
cd81e915 | 1838 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1839 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1840 | PL_curforce = where; |
1841 | if (PL_nextwhite) { | |
5db06880 | 1842 | if (PL_madskills) |
6b29d1f5 | 1843 | curmad('^', newSVpvs("")); |
cd81e915 | 1844 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1845 | } |
1846 | } | |
1847 | ||
1848 | STATIC void | |
1849 | S_curmad(pTHX_ char slot, SV *sv) | |
1850 | { | |
1851 | MADPROP **where; | |
1852 | ||
1853 | if (!sv) | |
1854 | return; | |
cd81e915 NC |
1855 | if (PL_curforce < 0) |
1856 | where = &PL_thismad; | |
5db06880 | 1857 | else |
cd81e915 | 1858 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1859 | |
cd81e915 | 1860 | if (PL_faketokens) |
76f68e9b | 1861 | sv_setpvs(sv, ""); |
5db06880 NC |
1862 | else { |
1863 | if (!IN_BYTES) { | |
1864 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1865 | SvUTF8_on(sv); | |
1866 | else if (PL_encoding) { | |
1867 | sv_recode_to_utf8(sv, PL_encoding); | |
1868 | } | |
1869 | } | |
1870 | } | |
1871 | ||
1872 | /* keep a slot open for the head of the list? */ | |
1873 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1874 | (*where)->mad_key = slot; | |
daba3364 | 1875 | sv_free(MUTABLE_SV(((*where)->mad_val))); |
5db06880 NC |
1876 | (*where)->mad_val = (void*)sv; |
1877 | } | |
1878 | else | |
1879 | addmad(newMADsv(slot, sv), where, 0); | |
1880 | } | |
1881 | #else | |
b3f24c00 MHM |
1882 | # define start_force(where) NOOP |
1883 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1884 | #endif |
1885 | ||
ffb4593c NT |
1886 | /* |
1887 | * S_force_next | |
9cbb5ea2 | 1888 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1889 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1890 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1891 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1892 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1893 | */ |
1894 | ||
4e553d73 | 1895 | STATIC void |
cea2e8a9 | 1896 | S_force_next(pTHX_ I32 type) |
79072805 | 1897 | { |
97aff369 | 1898 | dVAR; |
704d4215 GG |
1899 | #ifdef DEBUGGING |
1900 | if (DEBUG_T_TEST) { | |
1901 | PerlIO_printf(Perl_debug_log, "### forced token:\n"); | |
f05d7009 | 1902 | tokereport(type, &NEXTVAL_NEXTTOKE); |
704d4215 GG |
1903 | } |
1904 | #endif | |
5db06880 | 1905 | #ifdef PERL_MAD |
cd81e915 | 1906 | if (PL_curforce < 0) |
5db06880 | 1907 | start_force(PL_lasttoke); |
cd81e915 | 1908 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1909 | if (PL_lex_state != LEX_KNOWNEXT) |
1910 | PL_lex_defer = PL_lex_state; | |
1911 | PL_lex_state = LEX_KNOWNEXT; | |
1912 | PL_lex_expect = PL_expect; | |
cd81e915 | 1913 | PL_curforce = -1; |
5db06880 | 1914 | #else |
3280af22 NIS |
1915 | PL_nexttype[PL_nexttoke] = type; |
1916 | PL_nexttoke++; | |
1917 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1918 | PL_lex_defer = PL_lex_state; | |
1919 | PL_lex_expect = PL_expect; | |
1920 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1921 | } |
5db06880 | 1922 | #endif |
79072805 LW |
1923 | } |
1924 | ||
28ac2b49 Z |
1925 | void |
1926 | Perl_yyunlex(pTHX) | |
1927 | { | |
1928 | if (PL_parser->yychar != YYEMPTY) { | |
1929 | start_force(-1); | |
1930 | NEXTVAL_NEXTTOKE = PL_parser->yylval; | |
1931 | force_next(PL_parser->yychar); | |
1932 | PL_parser->yychar = YYEMPTY; | |
1933 | } | |
1934 | } | |
1935 | ||
d0a148a6 | 1936 | STATIC SV * |
15f169a1 | 1937 | S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len) |
d0a148a6 | 1938 | { |
97aff369 | 1939 | dVAR; |
740cce10 | 1940 | SV * const sv = newSVpvn_utf8(start, len, |
eaf7a4d2 CS |
1941 | !IN_BYTES |
1942 | && UTF | |
1943 | && !is_ascii_string((const U8*)start, len) | |
740cce10 | 1944 | && is_utf8_string((const U8*)start, len)); |
d0a148a6 NC |
1945 | return sv; |
1946 | } | |
1947 | ||
ffb4593c NT |
1948 | /* |
1949 | * S_force_word | |
1950 | * When the lexer knows the next thing is a word (for instance, it has | |
1951 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1952 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1953 | * lookahead. | |
ffb4593c NT |
1954 | * |
1955 | * Arguments: | |
b1b65b59 | 1956 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1957 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1958 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1959 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1960 | * int allow_pack : if true, : characters will also be allowed (require, | |
1961 | * use, etc. do this) | |
9cbb5ea2 | 1962 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1963 | */ |
1964 | ||
76e3520e | 1965 | STATIC char * |
cea2e8a9 | 1966 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1967 | { |
97aff369 | 1968 | dVAR; |
463ee0b2 LW |
1969 | register char *s; |
1970 | STRLEN len; | |
4e553d73 | 1971 | |
7918f24d NC |
1972 | PERL_ARGS_ASSERT_FORCE_WORD; |
1973 | ||
29595ff2 | 1974 | start = SKIPSPACE1(start); |
463ee0b2 | 1975 | s = start; |
7e2040f0 | 1976 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1977 | (allow_pack && *s == ':') || |
15f0808c | 1978 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1979 | { |
3280af22 | 1980 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1981 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1982 | return start; |
cd81e915 | 1983 | start_force(PL_curforce); |
5db06880 NC |
1984 | if (PL_madskills) |
1985 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1986 | if (token == METHOD) { |
29595ff2 | 1987 | s = SKIPSPACE1(s); |
463ee0b2 | 1988 | if (*s == '(') |
3280af22 | 1989 | PL_expect = XTERM; |
463ee0b2 | 1990 | else { |
3280af22 | 1991 | PL_expect = XOPERATOR; |
463ee0b2 | 1992 | } |
79072805 | 1993 | } |
e74e6b3d | 1994 | if (PL_madskills) |
63575281 | 1995 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1996 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1997 | = (OP*)newSVOP(OP_CONST,0, |
1998 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1999 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
2000 | force_next(token); |
2001 | } | |
2002 | return s; | |
2003 | } | |
2004 | ||
ffb4593c NT |
2005 | /* |
2006 | * S_force_ident | |
9cbb5ea2 | 2007 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
2008 | * text only contains the "foo" portion. The first argument is a pointer |
2009 | * to the "foo", and the second argument is the type symbol to prefix. | |
2010 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 2011 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
2012 | */ |
2013 | ||
76e3520e | 2014 | STATIC void |
bfed75c6 | 2015 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 2016 | { |
97aff369 | 2017 | dVAR; |
7918f24d NC |
2018 | |
2019 | PERL_ARGS_ASSERT_FORCE_IDENT; | |
2020 | ||
c35e046a | 2021 | if (*s) { |
90e5519e NC |
2022 | const STRLEN len = strlen(s); |
2023 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 2024 | start_force(PL_curforce); |
9ded7720 | 2025 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 2026 | force_next(WORD); |
748a9306 | 2027 | if (kind) { |
11343788 | 2028 | o->op_private = OPpCONST_ENTERED; |
55497cff | 2029 | /* XXX see note in pp_entereval() for why we forgo typo |
2030 | warnings if the symbol must be introduced in an eval. | |
2031 | GSAR 96-10-12 */ | |
90e5519e NC |
2032 | gv_fetchpvn_flags(s, len, |
2033 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
2034 | : GV_ADD, | |
2035 | kind == '$' ? SVt_PV : | |
2036 | kind == '@' ? SVt_PVAV : | |
2037 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 2038 | SVt_PVGV |
90e5519e | 2039 | ); |
748a9306 | 2040 | } |
79072805 LW |
2041 | } |
2042 | } | |
2043 | ||
1571675a GS |
2044 | NV |
2045 | Perl_str_to_version(pTHX_ SV *sv) | |
2046 | { | |
2047 | NV retval = 0.0; | |
2048 | NV nshift = 1.0; | |
2049 | STRLEN len; | |
cfd0369c | 2050 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 2051 | const char * const end = start + len; |
504618e9 | 2052 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
7918f24d NC |
2053 | |
2054 | PERL_ARGS_ASSERT_STR_TO_VERSION; | |
2055 | ||
1571675a | 2056 | while (start < end) { |
ba210ebe | 2057 | STRLEN skip; |
1571675a GS |
2058 | UV n; |
2059 | if (utf) | |
9041c2e3 | 2060 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
2061 | else { |
2062 | n = *(U8*)start; | |
2063 | skip = 1; | |
2064 | } | |
2065 | retval += ((NV)n)/nshift; | |
2066 | start += skip; | |
2067 | nshift *= 1000; | |
2068 | } | |
2069 | return retval; | |
2070 | } | |
2071 | ||
4e553d73 | 2072 | /* |
ffb4593c NT |
2073 | * S_force_version |
2074 | * Forces the next token to be a version number. | |
e759cc13 RGS |
2075 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
2076 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
2077 | * must use an alternative parsing method). | |
ffb4593c NT |
2078 | */ |
2079 | ||
76e3520e | 2080 | STATIC char * |
e759cc13 | 2081 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 2082 | { |
97aff369 | 2083 | dVAR; |
5f66b61c | 2084 | OP *version = NULL; |
44dcb63b | 2085 | char *d; |
5db06880 NC |
2086 | #ifdef PERL_MAD |
2087 | I32 startoff = s - SvPVX(PL_linestr); | |
2088 | #endif | |
89bfa8cd | 2089 | |
7918f24d NC |
2090 | PERL_ARGS_ASSERT_FORCE_VERSION; |
2091 | ||
29595ff2 | 2092 | s = SKIPSPACE1(s); |
89bfa8cd | 2093 | |
44dcb63b | 2094 | d = s; |
dd629d5b | 2095 | if (*d == 'v') |
44dcb63b | 2096 | d++; |
44dcb63b | 2097 | if (isDIGIT(*d)) { |
e759cc13 RGS |
2098 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
2099 | d++; | |
5db06880 NC |
2100 | #ifdef PERL_MAD |
2101 | if (PL_madskills) { | |
cd81e915 | 2102 | start_force(PL_curforce); |
5db06880 NC |
2103 | curmad('X', newSVpvn(s,d-s)); |
2104 | } | |
2105 | #endif | |
4e4da3ac | 2106 | if (*d == ';' || isSPACE(*d) || *d == '{' || *d == '}' || !*d) { |
dd629d5b | 2107 | SV *ver; |
8d08d9ba DG |
2108 | #ifdef USE_LOCALE_NUMERIC |
2109 | char *loc = setlocale(LC_NUMERIC, "C"); | |
2110 | #endif | |
6154021b | 2111 | s = scan_num(s, &pl_yylval); |
8d08d9ba DG |
2112 | #ifdef USE_LOCALE_NUMERIC |
2113 | setlocale(LC_NUMERIC, loc); | |
2114 | #endif | |
6154021b | 2115 | version = pl_yylval.opval; |
dd629d5b GS |
2116 | ver = cSVOPx(version)->op_sv; |
2117 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 2118 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 2119 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 2120 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 2121 | } |
89bfa8cd | 2122 | } |
5db06880 NC |
2123 | else if (guessing) { |
2124 | #ifdef PERL_MAD | |
2125 | if (PL_madskills) { | |
cd81e915 NC |
2126 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2127 | PL_nextwhite = 0; | |
5db06880 NC |
2128 | s = SvPVX(PL_linestr) + startoff; |
2129 | } | |
2130 | #endif | |
e759cc13 | 2131 | return s; |
5db06880 | 2132 | } |
89bfa8cd | 2133 | } |
2134 | ||
5db06880 NC |
2135 | #ifdef PERL_MAD |
2136 | if (PL_madskills && !version) { | |
cd81e915 NC |
2137 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2138 | PL_nextwhite = 0; | |
5db06880 NC |
2139 | s = SvPVX(PL_linestr) + startoff; |
2140 | } | |
2141 | #endif | |
89bfa8cd | 2142 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 2143 | start_force(PL_curforce); |
9ded7720 | 2144 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 2145 | force_next(WORD); |
89bfa8cd | 2146 | |
e759cc13 | 2147 | return s; |
89bfa8cd | 2148 | } |
2149 | ||
ffb4593c | 2150 | /* |
91152fc1 DG |
2151 | * S_force_strict_version |
2152 | * Forces the next token to be a version number using strict syntax rules. | |
2153 | */ | |
2154 | ||
2155 | STATIC char * | |
2156 | S_force_strict_version(pTHX_ char *s) | |
2157 | { | |
2158 | dVAR; | |
2159 | OP *version = NULL; | |
2160 | #ifdef PERL_MAD | |
2161 | I32 startoff = s - SvPVX(PL_linestr); | |
2162 | #endif | |
2163 | const char *errstr = NULL; | |
2164 | ||
2165 | PERL_ARGS_ASSERT_FORCE_STRICT_VERSION; | |
2166 | ||
2167 | while (isSPACE(*s)) /* leading whitespace */ | |
2168 | s++; | |
2169 | ||
2170 | if (is_STRICT_VERSION(s,&errstr)) { | |
2171 | SV *ver = newSV(0); | |
2172 | s = (char *)scan_version(s, ver, 0); | |
2173 | version = newSVOP(OP_CONST, 0, ver); | |
2174 | } | |
4e4da3ac Z |
2175 | else if ( (*s != ';' && *s != '{' && *s != '}' ) && |
2176 | (s = SKIPSPACE1(s), (*s != ';' && *s != '{' && *s != '}' ))) | |
2177 | { | |
91152fc1 DG |
2178 | PL_bufptr = s; |
2179 | if (errstr) | |
2180 | yyerror(errstr); /* version required */ | |
2181 | return s; | |
2182 | } | |
2183 | ||
2184 | #ifdef PERL_MAD | |
2185 | if (PL_madskills && !version) { | |
2186 | sv_free(PL_nextwhite); /* let next token collect whitespace */ | |
2187 | PL_nextwhite = 0; | |
2188 | s = SvPVX(PL_linestr) + startoff; | |
2189 | } | |
2190 | #endif | |
2191 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
2192 | start_force(PL_curforce); | |
2193 | NEXTVAL_NEXTTOKE.opval = version; | |
2194 | force_next(WORD); | |
2195 | ||
2196 | return s; | |
2197 | } | |
2198 | ||
2199 | /* | |
ffb4593c NT |
2200 | * S_tokeq |
2201 | * Tokenize a quoted string passed in as an SV. It finds the next | |
2202 | * chunk, up to end of string or a backslash. It may make a new | |
2203 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
2204 | * turns \\ into \. | |
2205 | */ | |
2206 | ||
76e3520e | 2207 | STATIC SV * |
cea2e8a9 | 2208 | S_tokeq(pTHX_ SV *sv) |
79072805 | 2209 | { |
97aff369 | 2210 | dVAR; |
79072805 LW |
2211 | register char *s; |
2212 | register char *send; | |
2213 | register char *d; | |
b3ac6de7 IZ |
2214 | STRLEN len = 0; |
2215 | SV *pv = sv; | |
79072805 | 2216 | |
7918f24d NC |
2217 | PERL_ARGS_ASSERT_TOKEQ; |
2218 | ||
79072805 | 2219 | if (!SvLEN(sv)) |
b3ac6de7 | 2220 | goto finish; |
79072805 | 2221 | |
a0d0e21e | 2222 | s = SvPV_force(sv, len); |
21a311ee | 2223 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 2224 | goto finish; |
463ee0b2 | 2225 | send = s + len; |
79072805 LW |
2226 | while (s < send && *s != '\\') |
2227 | s++; | |
2228 | if (s == send) | |
b3ac6de7 | 2229 | goto finish; |
79072805 | 2230 | d = s; |
be4731d2 | 2231 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 2232 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 2233 | } |
79072805 LW |
2234 | while (s < send) { |
2235 | if (*s == '\\') { | |
a0d0e21e | 2236 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
2237 | s++; /* all that, just for this */ |
2238 | } | |
2239 | *d++ = *s++; | |
2240 | } | |
2241 | *d = '\0'; | |
95a20fc0 | 2242 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 2243 | finish: |
3280af22 | 2244 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 2245 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
2246 | return sv; |
2247 | } | |
2248 | ||
ffb4593c NT |
2249 | /* |
2250 | * Now come three functions related to double-quote context, | |
2251 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
2252 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
2253 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
2254 | * to handle functions and concatenation. | |
2255 | * They assume that whoever calls them will be setting up a fake | |
2256 | * join call, because each subthing puts a ',' after it. This lets | |
2257 | * "lower \luPpEr" | |
2258 | * become | |
2259 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
2260 | * | |
2261 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
2262 | * arguments and join's arguments are created or not). | |
2263 | */ | |
2264 | ||
2265 | /* | |
2266 | * S_sublex_start | |
6154021b | 2267 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
2268 | * |
2269 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 2270 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
2271 | * |
2272 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
2273 | * | |
2274 | * Everything else becomes a FUNC. | |
2275 | * | |
2276 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
2277 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
2278 | * call to S_sublex_push(). | |
2279 | */ | |
2280 | ||
76e3520e | 2281 | STATIC I32 |
cea2e8a9 | 2282 | S_sublex_start(pTHX) |
79072805 | 2283 | { |
97aff369 | 2284 | dVAR; |
6154021b | 2285 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
2286 | |
2287 | if (op_type == OP_NULL) { | |
6154021b | 2288 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2289 | PL_lex_op = NULL; |
79072805 LW |
2290 | return THING; |
2291 | } | |
2292 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 2293 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
2294 | |
2295 | if (SvTYPE(sv) == SVt_PVIV) { | |
2296 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
2297 | STRLEN len; | |
96a5add6 | 2298 | const char * const p = SvPV_const(sv, len); |
740cce10 | 2299 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
2300 | SvREFCNT_dec(sv); |
2301 | sv = nsv; | |
4e553d73 | 2302 | } |
6154021b | 2303 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 2304 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
2305 | /* Allow <FH> // "foo" */ |
2306 | if (op_type == OP_READLINE) | |
2307 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
2308 | return THING; |
2309 | } | |
e3f73d4e RGS |
2310 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
2311 | /* readpipe() vas overriden */ | |
2312 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 2313 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 2314 | PL_lex_op = NULL; |
e3f73d4e RGS |
2315 | PL_lex_stuff = NULL; |
2316 | return THING; | |
2317 | } | |
79072805 | 2318 | |
3280af22 | 2319 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 2320 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
2321 | PL_sublex_info.sub_op = PL_lex_op; |
2322 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 2323 | |
3280af22 NIS |
2324 | PL_expect = XTERM; |
2325 | if (PL_lex_op) { | |
6154021b | 2326 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2327 | PL_lex_op = NULL; |
55497cff | 2328 | return PMFUNC; |
2329 | } | |
2330 | else | |
2331 | return FUNC; | |
2332 | } | |
2333 | ||
ffb4593c NT |
2334 | /* |
2335 | * S_sublex_push | |
2336 | * Create a new scope to save the lexing state. The scope will be | |
2337 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
2338 | * to the uc, lc, etc. found before. | |
2339 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
2340 | */ | |
2341 | ||
76e3520e | 2342 | STATIC I32 |
cea2e8a9 | 2343 | S_sublex_push(pTHX) |
55497cff | 2344 | { |
27da23d5 | 2345 | dVAR; |
f46d017c | 2346 | ENTER; |
55497cff | 2347 | |
3280af22 | 2348 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 2349 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 2350 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
2351 | SAVEI32(PL_lex_casemods); |
2352 | SAVEI32(PL_lex_starts); | |
651b5b28 | 2353 | SAVEI8(PL_lex_state); |
7766f137 | 2354 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 2355 | SAVEI16(PL_lex_inwhat); |
57843af0 | 2356 | SAVECOPLINE(PL_curcop); |
3280af22 | 2357 | SAVEPPTR(PL_bufptr); |
8452ff4b | 2358 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
2359 | SAVEPPTR(PL_oldbufptr); |
2360 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
2361 | SAVEPPTR(PL_last_lop); |
2362 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
2363 | SAVEPPTR(PL_linestart); |
2364 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
2365 | SAVEGENERICPV(PL_lex_brackstack); |
2366 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
2367 | |
2368 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 2369 | PL_lex_stuff = NULL; |
3280af22 | 2370 | |
9cbb5ea2 GS |
2371 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
2372 | = SvPVX(PL_linestr); | |
3280af22 | 2373 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 2374 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2375 | SAVEFREESV(PL_linestr); |
2376 | ||
2377 | PL_lex_dojoin = FALSE; | |
2378 | PL_lex_brackets = 0; | |
a02a5408 JC |
2379 | Newx(PL_lex_brackstack, 120, char); |
2380 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
2381 | PL_lex_casemods = 0; |
2382 | *PL_lex_casestack = '\0'; | |
2383 | PL_lex_starts = 0; | |
2384 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 2385 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
2386 | |
2387 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
2388 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
2389 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 2390 | else |
5f66b61c | 2391 | PL_lex_inpat = NULL; |
79072805 | 2392 | |
55497cff | 2393 | return '('; |
79072805 LW |
2394 | } |
2395 | ||
ffb4593c NT |
2396 | /* |
2397 | * S_sublex_done | |
2398 | * Restores lexer state after a S_sublex_push. | |
2399 | */ | |
2400 | ||
76e3520e | 2401 | STATIC I32 |
cea2e8a9 | 2402 | S_sublex_done(pTHX) |
79072805 | 2403 | { |
27da23d5 | 2404 | dVAR; |
3280af22 | 2405 | if (!PL_lex_starts++) { |
396482e1 | 2406 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
2407 | if (SvUTF8(PL_linestr)) |
2408 | SvUTF8_on(sv); | |
3280af22 | 2409 | PL_expect = XOPERATOR; |
6154021b | 2410 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
2411 | return THING; |
2412 | } | |
2413 | ||
3280af22 NIS |
2414 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
2415 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 2416 | return yylex(); |
79072805 LW |
2417 | } |
2418 | ||
ffb4593c | 2419 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
2420 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
2421 | PL_linestr = PL_lex_repl; | |
2422 | PL_lex_inpat = 0; | |
2423 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
2424 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 2425 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2426 | SAVEFREESV(PL_linestr); |
2427 | PL_lex_dojoin = FALSE; | |
2428 | PL_lex_brackets = 0; | |
3280af22 NIS |
2429 | PL_lex_casemods = 0; |
2430 | *PL_lex_casestack = '\0'; | |
2431 | PL_lex_starts = 0; | |
25da4f38 | 2432 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
2433 | PL_lex_state = LEX_INTERPNORMAL; |
2434 | PL_lex_starts++; | |
e9fa98b2 HS |
2435 | /* we don't clear PL_lex_repl here, so that we can check later |
2436 | whether this is an evalled subst; that means we rely on the | |
2437 | logic to ensure sublex_done() is called again only via the | |
2438 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 2439 | } |
e9fa98b2 | 2440 | else { |
3280af22 | 2441 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 2442 | PL_lex_repl = NULL; |
e9fa98b2 | 2443 | } |
79072805 | 2444 | return ','; |
ffed7fef LW |
2445 | } |
2446 | else { | |
5db06880 NC |
2447 | #ifdef PERL_MAD |
2448 | if (PL_madskills) { | |
cd81e915 NC |
2449 | if (PL_thiswhite) { |
2450 | if (!PL_endwhite) | |
6b29d1f5 | 2451 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
2452 | sv_catsv(PL_endwhite, PL_thiswhite); |
2453 | PL_thiswhite = 0; | |
2454 | } | |
2455 | if (PL_thistoken) | |
76f68e9b | 2456 | sv_setpvs(PL_thistoken,""); |
5db06880 | 2457 | else |
cd81e915 | 2458 | PL_realtokenstart = -1; |
5db06880 NC |
2459 | } |
2460 | #endif | |
f46d017c | 2461 | LEAVE; |
3280af22 NIS |
2462 | PL_bufend = SvPVX(PL_linestr); |
2463 | PL_bufend += SvCUR(PL_linestr); | |
2464 | PL_expect = XOPERATOR; | |
09bef843 | 2465 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 2466 | return ')'; |
ffed7fef LW |
2467 | } |
2468 | } | |
2469 | ||
02aa26ce NT |
2470 | /* |
2471 | scan_const | |
2472 | ||
2473 | Extracts a pattern, double-quoted string, or transliteration. This | |
2474 | is terrifying code. | |
2475 | ||
94def140 | 2476 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 2477 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 2478 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 2479 | |
94def140 TS |
2480 | Returns a pointer to the character scanned up to. If this is |
2481 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 2482 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 2483 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
2484 | by looking at the next characters herself. |
2485 | ||
02aa26ce NT |
2486 | In patterns: |
2487 | backslashes: | |
ff3f963a | 2488 | constants: \N{NAME} only |
02aa26ce NT |
2489 | case and quoting: \U \Q \E |
2490 | stops on @ and $, but not for $ as tail anchor | |
2491 | ||
2492 | In transliterations: | |
2493 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
2494 | of the string, which indicates a range. If the range is in bytes, |
2495 | scan_const expands the range to the full set of intermediate | |
2496 | characters. If the range is in utf8, the hyphen is replaced with | |
2497 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
2498 | |
2499 | In double-quoted strings: | |
2500 | backslashes: | |
2501 | double-quoted style: \r and \n | |
ff3f963a | 2502 | constants: \x31, etc. |
94def140 | 2503 | deprecated backrefs: \1 (in substitution replacements) |
02aa26ce NT |
2504 | case and quoting: \U \Q \E |
2505 | stops on @ and $ | |
2506 | ||
2507 | scan_const does *not* construct ops to handle interpolated strings. | |
2508 | It stops processing as soon as it finds an embedded $ or @ variable | |
2509 | and leaves it to the caller to work out what's going on. | |
2510 | ||
94def140 TS |
2511 | embedded arrays (whether in pattern or not) could be: |
2512 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
2513 | ||
2514 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
2515 | |
2516 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
2517 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 2518 | followed by one of "()| \r\n\t" |
02aa26ce NT |
2519 | |
2520 | \1 (backreferences) are turned into $1 | |
2521 | ||
2522 | The structure of the code is | |
2523 | while (there's a character to process) { | |
94def140 TS |
2524 | handle transliteration ranges |
2525 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
2526 | skip #-initiated comments in //x patterns | |
2527 | check for embedded arrays | |
02aa26ce NT |
2528 | check for embedded scalars |
2529 | if (backslash) { | |
94def140 | 2530 | deprecate \1 in substitution replacements |
02aa26ce NT |
2531 | handle string-changing backslashes \l \U \Q \E, etc. |
2532 | switch (what was escaped) { | |
94def140 | 2533 | handle \- in a transliteration (becomes a literal -) |
ff3f963a | 2534 | if a pattern and not \N{, go treat as regular character |
94def140 TS |
2535 | handle \132 (octal characters) |
2536 | handle \x15 and \x{1234} (hex characters) | |
ff3f963a | 2537 | handle \N{name} (named characters, also \N{3,5} in a pattern) |
94def140 TS |
2538 | handle \cV (control characters) |
2539 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce | 2540 | } (end switch) |
77a135fe | 2541 | continue |
02aa26ce | 2542 | } (end if backslash) |
77a135fe | 2543 | handle regular character |
02aa26ce | 2544 | } (end while character to read) |
4e553d73 | 2545 | |
02aa26ce NT |
2546 | */ |
2547 | ||
76e3520e | 2548 | STATIC char * |
cea2e8a9 | 2549 | S_scan_const(pTHX_ char *start) |
79072805 | 2550 | { |
97aff369 | 2551 | dVAR; |
3280af22 | 2552 | register char *send = PL_bufend; /* end of the constant */ |
77a135fe KW |
2553 | SV *sv = newSV(send - start); /* sv for the constant. See |
2554 | note below on sizing. */ | |
02aa26ce NT |
2555 | register char *s = start; /* start of the constant */ |
2556 | register char *d = SvPVX(sv); /* destination for copies */ | |
2557 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 2558 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 | 2559 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
77a135fe KW |
2560 | I32 this_utf8 = UTF; /* Is the source string assumed |
2561 | to be UTF8? But, this can | |
2562 | show as true when the source | |
2563 | isn't utf8, as for example | |
2564 | when it is entirely composed | |
2565 | of hex constants */ | |
2566 | ||
2567 | /* Note on sizing: The scanned constant is placed into sv, which is | |
2568 | * initialized by newSV() assuming one byte of output for every byte of | |
2569 | * input. This routine expects newSV() to allocate an extra byte for a | |
2570 | * trailing NUL, which this routine will append if it gets to the end of | |
2571 | * the input. There may be more bytes of input than output (eg., \N{LATIN | |
2572 | * CAPITAL LETTER A}), or more output than input if the constant ends up | |
2573 | * recoded to utf8, but each time a construct is found that might increase | |
2574 | * the needed size, SvGROW() is called. Its size parameter each time is | |
2575 | * based on the best guess estimate at the time, namely the length used so | |
2576 | * far, plus the length the current construct will occupy, plus room for | |
2577 | * the trailing NUL, plus one byte for every input byte still unscanned */ | |
2578 | ||
012bcf8d | 2579 | UV uv; |
4c3a8340 TS |
2580 | #ifdef EBCDIC |
2581 | UV literal_endpoint = 0; | |
e294cc5d | 2582 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 2583 | #endif |
012bcf8d | 2584 | |
7918f24d NC |
2585 | PERL_ARGS_ASSERT_SCAN_CONST; |
2586 | ||
2b9d42f0 NIS |
2587 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
2588 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
2589 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
2590 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
2591 | } | |
2592 | ||
2593 | ||
79072805 | 2594 | while (s < send || dorange) { |
ff3f963a | 2595 | |
02aa26ce | 2596 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 2597 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 2598 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 2599 | if (dorange) { |
1ba5c669 JH |
2600 | I32 i; /* current expanded character */ |
2601 | I32 min; /* first character in range */ | |
2602 | I32 max; /* last character in range */ | |
02aa26ce | 2603 | |
e294cc5d JH |
2604 | #ifdef EBCDIC |
2605 | UV uvmax = 0; | |
2606 | #endif | |
2607 | ||
2608 | if (has_utf8 | |
2609 | #ifdef EBCDIC | |
2610 | && !native_range | |
2611 | #endif | |
2612 | ) { | |
9d4ba2ae | 2613 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
2614 | char *e = d++; |
2615 | while (e-- > c) | |
2616 | *(e + 1) = *e; | |
25716404 | 2617 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
2618 | /* mark the range as done, and continue */ |
2619 | dorange = FALSE; | |
2620 | didrange = TRUE; | |
2621 | continue; | |
2622 | } | |
2b9d42f0 | 2623 | |
95a20fc0 | 2624 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
2625 | #ifdef EBCDIC |
2626 | SvGROW(sv, | |
2627 | SvLEN(sv) + (has_utf8 ? | |
2628 | (512 - UTF_CONTINUATION_MARK + | |
2629 | UNISKIP(0x100)) | |
2630 | : 256)); | |
2631 | /* How many two-byte within 0..255: 128 in UTF-8, | |
2632 | * 96 in UTF-8-mod. */ | |
2633 | #else | |
9cbb5ea2 | 2634 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 2635 | #endif |
9cbb5ea2 | 2636 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
2637 | #ifdef EBCDIC |
2638 | if (has_utf8) { | |
2639 | int j; | |
2640 | for (j = 0; j <= 1; j++) { | |
2641 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
2642 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
2643 | if (j) | |
2644 | min = (U8)uv; | |
2645 | else if (uv < 256) | |
2646 | max = (U8)uv; | |
2647 | else { | |
2648 | max = (U8)0xff; /* only to \xff */ | |
2649 | uvmax = uv; /* \x{100} to uvmax */ | |
2650 | } | |
2651 | d = c; /* eat endpoint chars */ | |
2652 | } | |
2653 | } | |
2654 | else { | |
2655 | #endif | |
2656 | d -= 2; /* eat the first char and the - */ | |
2657 | min = (U8)*d; /* first char in range */ | |
2658 | max = (U8)d[1]; /* last char in range */ | |
2659 | #ifdef EBCDIC | |
2660 | } | |
2661 | #endif | |
8ada0baa | 2662 | |
c2e66d9e | 2663 | if (min > max) { |
01ec43d0 | 2664 | Perl_croak(aTHX_ |
d1573ac7 | 2665 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 2666 | (char)min, (char)max); |
c2e66d9e GS |
2667 | } |
2668 | ||
c7f1f016 | 2669 | #ifdef EBCDIC |
4c3a8340 TS |
2670 | if (literal_endpoint == 2 && |
2671 | ((isLOWER(min) && isLOWER(max)) || | |
2672 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
2673 | if (isLOWER(min)) { |
2674 | for (i = min; i <= max; i++) | |
2675 | if (isLOWER(i)) | |
db42d148 | 2676 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2677 | } else { |
2678 | for (i = min; i <= max; i++) | |
2679 | if (isUPPER(i)) | |
db42d148 | 2680 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2681 | } |
2682 | } | |
2683 | else | |
2684 | #endif | |
2685 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2686 | #ifdef EBCDIC |
2687 | if (has_utf8) { | |
2688 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2689 | if (UNI_IS_INVARIANT(ch)) | |
2690 | *d++ = (U8)i; | |
2691 | else { | |
2692 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2693 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2694 | } | |
2695 | } | |
2696 | else | |
2697 | #endif | |
2698 | *d++ = (char)i; | |
2699 | ||
2700 | #ifdef EBCDIC | |
2701 | if (uvmax) { | |
2702 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2703 | if (uvmax > 0x101) | |
2704 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2705 | if (uvmax > 0x100) | |
2706 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2707 | } | |
2708 | #endif | |
02aa26ce NT |
2709 | |
2710 | /* mark the range as done, and continue */ | |
79072805 | 2711 | dorange = FALSE; |
01ec43d0 | 2712 | didrange = TRUE; |
4c3a8340 TS |
2713 | #ifdef EBCDIC |
2714 | literal_endpoint = 0; | |
2715 | #endif | |
79072805 | 2716 | continue; |
4e553d73 | 2717 | } |
02aa26ce NT |
2718 | |
2719 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2720 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2721 | if (didrange) { |
1fafa243 | 2722 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2723 | } |
e294cc5d JH |
2724 | if (has_utf8 |
2725 | #ifdef EBCDIC | |
2726 | && !native_range | |
2727 | #endif | |
2728 | ) { | |
25716404 | 2729 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2730 | s++; |
2731 | continue; | |
2732 | } | |
79072805 LW |
2733 | dorange = TRUE; |
2734 | s++; | |
01ec43d0 GS |
2735 | } |
2736 | else { | |
2737 | didrange = FALSE; | |
4c3a8340 TS |
2738 | #ifdef EBCDIC |
2739 | literal_endpoint = 0; | |
e294cc5d | 2740 | native_range = TRUE; |
4c3a8340 | 2741 | #endif |
01ec43d0 | 2742 | } |
79072805 | 2743 | } |
02aa26ce NT |
2744 | |
2745 | /* if we get here, we're not doing a transliteration */ | |
2746 | ||
0f5d15d6 IZ |
2747 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2748 | except for the last char, which will be done separately. */ | |
3280af22 | 2749 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2750 | if (s[2] == '#') { |
e994fd66 | 2751 | while (s+1 < send && *s != ')') |
db42d148 | 2752 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2753 | } |
2754 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2755 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2756 | { |
cc6b7395 | 2757 | I32 count = 1; |
0f5d15d6 | 2758 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2759 | char c; |
2760 | ||
d9f97599 GS |
2761 | while (count && (c = *regparse)) { |
2762 | if (c == '\\' && regparse[1]) | |
2763 | regparse++; | |
4e553d73 | 2764 | else if (c == '{') |
cc6b7395 | 2765 | count++; |
4e553d73 | 2766 | else if (c == '}') |
cc6b7395 | 2767 | count--; |
d9f97599 | 2768 | regparse++; |
cc6b7395 | 2769 | } |
e994fd66 | 2770 | if (*regparse != ')') |
5bdf89e7 | 2771 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2772 | while (s < regparse) |
db42d148 | 2773 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2774 | } |
748a9306 | 2775 | } |
02aa26ce NT |
2776 | |
2777 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2778 | else if (*s == '#' && PL_lex_inpat && |
2779 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2780 | while (s+1 < send && *s != '\n') |
db42d148 | 2781 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2782 | } |
02aa26ce | 2783 | |
5d1d4326 | 2784 | /* check for embedded arrays |
da6eedaa | 2785 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2786 | */ |
1749ea0d TS |
2787 | else if (*s == '@' && s[1]) { |
2788 | if (isALNUM_lazy_if(s+1,UTF)) | |
2789 | break; | |
2790 | if (strchr(":'{$", s[1])) | |
2791 | break; | |
2792 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2793 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2794 | } | |
02aa26ce NT |
2795 | |
2796 | /* check for embedded scalars. only stop if we're sure it's a | |
2797 | variable. | |
2798 | */ | |
79072805 | 2799 | else if (*s == '$') { |
3280af22 | 2800 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2801 | break; |
77772344 | 2802 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) { |
a2a5de95 NC |
2803 | if (s[1] == '\\') { |
2804 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
2805 | "Possible unintended interpolation of $\\ in regex"); | |
77772344 | 2806 | } |
79072805 | 2807 | break; /* in regexp, $ might be tail anchor */ |
77772344 | 2808 | } |
79072805 | 2809 | } |
02aa26ce | 2810 | |
2b9d42f0 NIS |
2811 | /* End of else if chain - OP_TRANS rejoin rest */ |
2812 | ||
02aa26ce | 2813 | /* backslashes */ |
79072805 | 2814 | if (*s == '\\' && s+1 < send) { |
ff3f963a KW |
2815 | char* e; /* Can be used for ending '}', etc. */ |
2816 | ||
79072805 | 2817 | s++; |
02aa26ce | 2818 | |
7d0fc23c KW |
2819 | /* warn on \1 - \9 in substitution replacements, but note that \11 |
2820 | * is an octal; and \19 is \1 followed by '9' */ | |
3280af22 | 2821 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2822 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2823 | { |
a2a5de95 | 2824 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2825 | *--s = '$'; |
2826 | break; | |
2827 | } | |
02aa26ce NT |
2828 | |
2829 | /* string-change backslash escapes */ | |
3280af22 | 2830 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2831 | --s; |
2832 | break; | |
2833 | } | |
ff3f963a KW |
2834 | /* In a pattern, process \N, but skip any other backslash escapes. |
2835 | * This is because we don't want to translate an escape sequence | |
2836 | * into a meta symbol and have the regex compiler use the meta | |
2837 | * symbol meaning, e.g. \x{2E} would be confused with a dot. But | |
2838 | * in spite of this, we do have to process \N here while the proper | |
2839 | * charnames handler is in scope. See bugs #56444 and #62056. | |
2840 | * There is a complication because \N in a pattern may also stand | |
2841 | * for 'match a non-nl', and not mean a charname, in which case its | |
2842 | * processing should be deferred to the regex compiler. To be a | |
2843 | * charname it must be followed immediately by a '{', and not look | |
2844 | * like \N followed by a curly quantifier, i.e., not something like | |
2845 | * \N{3,}. regcurly returns a boolean indicating if it is a legal | |
2846 | * quantifier */ | |
2847 | else if (PL_lex_inpat | |
2848 | && (*s != 'N' | |
2849 | || s[1] != '{' | |
2850 | || regcurly(s + 1))) | |
2851 | { | |
cc74c5bd TS |
2852 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
2853 | goto default_action; | |
2854 | } | |
02aa26ce | 2855 | |
79072805 | 2856 | switch (*s) { |
02aa26ce NT |
2857 | |
2858 | /* quoted - in transliterations */ | |
79072805 | 2859 | case '-': |
3280af22 | 2860 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2861 | *d++ = *s++; |
2862 | continue; | |
2863 | } | |
2864 | /* FALL THROUGH */ | |
2865 | default: | |
11b8faa4 | 2866 | { |
a2a5de95 NC |
2867 | if ((isALPHA(*s) || isDIGIT(*s))) |
2868 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
2869 | "Unrecognized escape \\%c passed through", | |
2870 | *s); | |
11b8faa4 | 2871 | /* default action is to copy the quoted character */ |
f9a63242 | 2872 | goto default_action; |
11b8faa4 | 2873 | } |
02aa26ce | 2874 | |
632403cc | 2875 | /* eg. \132 indicates the octal constant 0132 */ |
79072805 LW |
2876 | case '0': case '1': case '2': case '3': |
2877 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2878 | { |
53305cf1 NC |
2879 | I32 flags = 0; |
2880 | STRLEN len = 3; | |
77a135fe | 2881 | uv = NATIVE_TO_UNI(grok_oct(s, &len, &flags, NULL)); |
ba210ebe JH |
2882 | s += len; |
2883 | } | |
012bcf8d | 2884 | goto NUM_ESCAPE_INSERT; |
02aa26ce | 2885 | |
f0a2b745 KW |
2886 | /* eg. \o{24} indicates the octal constant \024 */ |
2887 | case 'o': | |
2888 | { | |
2889 | STRLEN len; | |
454155d9 | 2890 | const char* error; |
f0a2b745 | 2891 | |
454155d9 | 2892 | bool valid = grok_bslash_o(s, &uv, &len, &error, 1); |
f0a2b745 | 2893 | s += len; |
454155d9 | 2894 | if (! valid) { |
f0a2b745 KW |
2895 | yyerror(error); |
2896 | continue; | |
2897 | } | |
2898 | goto NUM_ESCAPE_INSERT; | |
2899 | } | |
2900 | ||
77a135fe | 2901 | /* eg. \x24 indicates the hex constant 0x24 */ |
79072805 | 2902 | case 'x': |
a0ed51b3 LW |
2903 | ++s; |
2904 | if (*s == '{') { | |
9d4ba2ae | 2905 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2906 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2907 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2908 | STRLEN len; |
355860ce | 2909 | |
53305cf1 | 2910 | ++s; |
adaeee49 | 2911 | if (!e) { |
a0ed51b3 | 2912 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2913 | continue; |
ba210ebe | 2914 | } |
53305cf1 | 2915 | len = e - s; |
77a135fe | 2916 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe | 2917 | s = e + 1; |
a0ed51b3 LW |
2918 | } |
2919 | else { | |
ba210ebe | 2920 | { |
53305cf1 | 2921 | STRLEN len = 2; |
a4c04bdc | 2922 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
77a135fe | 2923 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe JH |
2924 | s += len; |
2925 | } | |
012bcf8d GS |
2926 | } |
2927 | ||
2928 | NUM_ESCAPE_INSERT: | |
ff3f963a KW |
2929 | /* Insert oct or hex escaped character. There will always be |
2930 | * enough room in sv since such escapes will be longer than any | |
2931 | * UTF-8 sequence they can end up as, except if they force us | |
2932 | * to recode the rest of the string into utf8 */ | |
ba7cea30 | 2933 | |
77a135fe | 2934 | /* Here uv is the ordinal of the next character being added in |
ff3f963a | 2935 | * unicode (converted from native). */ |
77a135fe | 2936 | if (!UNI_IS_INVARIANT(uv)) { |
9aa983d2 | 2937 | if (!has_utf8 && uv > 255) { |
77a135fe KW |
2938 | /* Might need to recode whatever we have accumulated so |
2939 | * far if it contains any chars variant in utf8 or | |
2940 | * utf-ebcdic. */ | |
2941 | ||
2942 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
2943 | SvPOK_on(sv); | |
2944 | *d = '\0'; | |
77a135fe | 2945 | /* See Note on sizing above. */ |
7bf79863 KW |
2946 | sv_utf8_upgrade_flags_grow(sv, |
2947 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
2948 | UNISKIP(uv) + (STRLEN)(send - s) + 1); | |
77a135fe KW |
2949 | d = SvPVX(sv) + SvCUR(sv); |
2950 | has_utf8 = TRUE; | |
012bcf8d GS |
2951 | } |
2952 | ||
77a135fe KW |
2953 | if (has_utf8) { |
2954 | d = (char*)uvuni_to_utf8((U8*)d, uv); | |
f9a63242 JH |
2955 | if (PL_lex_inwhat == OP_TRANS && |
2956 | PL_sublex_info.sub_op) { | |
2957 | PL_sublex_info.sub_op->op_private |= | |
2958 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2959 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2960 | } |
e294cc5d JH |
2961 | #ifdef EBCDIC |
2962 | if (uv > 255 && !dorange) | |
2963 | native_range = FALSE; | |
2964 | #endif | |
012bcf8d | 2965 | } |
a0ed51b3 | 2966 | else { |
012bcf8d | 2967 | *d++ = (char)uv; |
a0ed51b3 | 2968 | } |
012bcf8d GS |
2969 | } |
2970 | else { | |
c4d5f83a | 2971 | *d++ = (char) uv; |
a0ed51b3 | 2972 | } |
79072805 | 2973 | continue; |
02aa26ce | 2974 | |
4a2d328f | 2975 | case 'N': |
ff3f963a KW |
2976 | /* In a non-pattern \N must be a named character, like \N{LATIN |
2977 | * SMALL LETTER A} or \N{U+0041}. For patterns, it also can | |
2978 | * mean to match a non-newline. For non-patterns, named | |
2979 | * characters are converted to their string equivalents. In | |
2980 | * patterns, named characters are not converted to their | |
2981 | * ultimate forms for the same reasons that other escapes | |
2982 | * aren't. Instead, they are converted to the \N{U+...} form | |
2983 | * to get the value from the charnames that is in effect right | |
2984 | * now, while preserving the fact that it was a named character | |
2985 | * so that the regex compiler knows this */ | |
2986 | ||
2987 | /* This section of code doesn't generally use the | |
2988 | * NATIVE_TO_NEED() macro to transform the input. I (khw) did | |
2989 | * a close examination of this macro and determined it is a | |
2990 | * no-op except on utfebcdic variant characters. Every | |
2991 | * character generated by this that would normally need to be | |
2992 | * enclosed by this macro is invariant, so the macro is not | |
2993 | * needed, and would complicate use of copy(). There are other | |
2994 | * parts of this file where the macro is used inconsistently, | |
2995 | * but are saved by it being a no-op */ | |
2996 | ||
2997 | /* The structure of this section of code (besides checking for | |
2998 | * errors and upgrading to utf8) is: | |
2999 | * Further disambiguate between the two meanings of \N, and if | |
3000 | * not a charname, go process it elsewhere | |
0a96133f KW |
3001 | * If of form \N{U+...}, pass it through if a pattern; |
3002 | * otherwise convert to utf8 | |
3003 | * Otherwise must be \N{NAME}: convert to \N{U+c1.c2...} if a | |
3004 | * pattern; otherwise convert to utf8 */ | |
ff3f963a KW |
3005 | |
3006 | /* Here, s points to the 'N'; the test below is guaranteed to | |
3007 | * succeed if we are being called on a pattern as we already | |
3008 | * know from a test above that the next character is a '{'. | |
3009 | * On a non-pattern \N must mean 'named sequence, which | |
3010 | * requires braces */ | |
3011 | s++; | |
3012 | if (*s != '{') { | |
3013 | yyerror("Missing braces on \\N{}"); | |
3014 | continue; | |
3015 | } | |
3016 | s++; | |
3017 | ||
0a96133f | 3018 | /* If there is no matching '}', it is an error. */ |
ff3f963a KW |
3019 | if (! (e = strchr(s, '}'))) { |
3020 | if (! PL_lex_inpat) { | |
5777a3f7 | 3021 | yyerror("Missing right brace on \\N{}"); |
0a96133f KW |
3022 | } else { |
3023 | yyerror("Missing right brace on \\N{} or unescaped left brace after \\N."); | |
dbc0d4f2 | 3024 | } |
0a96133f | 3025 | continue; |
ff3f963a | 3026 | } |
cddc7ef4 | 3027 | |
ff3f963a | 3028 | /* Here it looks like a named character */ |
cddc7ef4 | 3029 | |
ff3f963a KW |
3030 | if (PL_lex_inpat) { |
3031 | ||
3032 | /* XXX This block is temporary code. \N{} implies that the | |
3033 | * pattern is to have Unicode semantics, and therefore | |
3034 | * currently has to be encoded in utf8. By putting it in | |
3035 | * utf8 now, we save a whole pass in the regular expression | |
3036 | * compiler. Once that code is changed so Unicode | |
3037 | * semantics doesn't necessarily have to be in utf8, this | |
3038 | * block should be removed */ | |
3039 | if (!has_utf8) { | |
77a135fe | 3040 | SvCUR_set(sv, d - SvPVX_const(sv)); |
f08d6ad9 | 3041 | SvPOK_on(sv); |
e4f3eed8 | 3042 | *d = '\0'; |
77a135fe | 3043 | /* See Note on sizing above. */ |
7bf79863 | 3044 | sv_utf8_upgrade_flags_grow(sv, |
ff3f963a KW |
3045 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, |
3046 | /* 5 = '\N{' + cur char + NUL */ | |
3047 | (STRLEN)(send - s) + 5); | |
f08d6ad9 | 3048 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 3049 | has_utf8 = TRUE; |
ff3f963a KW |
3050 | } |
3051 | } | |
423cee85 | 3052 | |
ff3f963a KW |
3053 | if (*s == 'U' && s[1] == '+') { /* \N{U+...} */ |
3054 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
3055 | | PERL_SCAN_DISALLOW_PREFIX; | |
3056 | STRLEN len; | |
3057 | ||
3058 | /* For \N{U+...}, the '...' is a unicode value even on | |
3059 | * EBCDIC machines */ | |
3060 | s += 2; /* Skip to next char after the 'U+' */ | |
3061 | len = e - s; | |
3062 | uv = grok_hex(s, &len, &flags, NULL); | |
3063 | if (len == 0 || len != (STRLEN)(e - s)) { | |
3064 | yyerror("Invalid hexadecimal number in \\N{U+...}"); | |
3065 | s = e + 1; | |
3066 | continue; | |
3067 | } | |
3068 | ||
3069 | if (PL_lex_inpat) { | |
3070 | ||
3071 | /* Pass through to the regex compiler unchanged. The | |
3072 | * reason we evaluated the number above is to make sure | |
0a96133f | 3073 | * there wasn't a syntax error. */ |
ff3f963a KW |
3074 | s -= 5; /* Include the '\N{U+' */ |
3075 | Copy(s, d, e - s + 1, char); /* 1 = include the } */ | |
3076 | d += e - s + 1; | |
3077 | } | |
3078 | else { /* Not a pattern: convert the hex to string */ | |
3079 | ||
3080 | /* If destination is not in utf8, unconditionally | |
3081 | * recode it to be so. This is because \N{} implies | |
3082 | * Unicode semantics, and scalars have to be in utf8 | |
3083 | * to guarantee those semantics */ | |
3084 | if (! has_utf8) { | |
3085 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3086 | SvPOK_on(sv); | |
3087 | *d = '\0'; | |
3088 | /* See Note on sizing above. */ | |
3089 | sv_utf8_upgrade_flags_grow( | |
3090 | sv, | |
3091 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3092 | UNISKIP(uv) + (STRLEN)(send - e) + 1); | |
3093 | d = SvPVX(sv) + SvCUR(sv); | |
3094 | has_utf8 = TRUE; | |
3095 | } | |
3096 | ||
3097 | /* Add the string to the output */ | |
3098 | if (UNI_IS_INVARIANT(uv)) { | |
3099 | *d++ = (char) uv; | |
3100 | } | |
3101 | else d = (char*)uvuni_to_utf8((U8*)d, uv); | |
3102 | } | |
3103 | } | |
3104 | else { /* Here is \N{NAME} but not \N{U+...}. */ | |
3105 | ||
3106 | SV *res; /* result from charnames */ | |
3107 | const char *str; /* the string in 'res' */ | |
3108 | STRLEN len; /* its length */ | |
3109 | ||
3110 | /* Get the value for NAME */ | |
3111 | res = newSVpvn(s, e - s); | |
3112 | res = new_constant( NULL, 0, "charnames", | |
3113 | /* includes all of: \N{...} */ | |
3114 | res, NULL, s - 3, e - s + 4 ); | |
3115 | ||
3116 | /* Most likely res will be in utf8 already since the | |
3117 | * standard charnames uses pack U, but a custom translator | |
3118 | * can leave it otherwise, so make sure. XXX This can be | |
3119 | * revisited to not have charnames use utf8 for characters | |
3120 | * that don't need it when regexes don't have to be in utf8 | |
3121 | * for Unicode semantics. If doing so, remember EBCDIC */ | |
3122 | sv_utf8_upgrade(res); | |
3123 | str = SvPV_const(res, len); | |
3124 | ||
3125 | /* Don't accept malformed input */ | |
3126 | if (! is_utf8_string((U8 *) str, len)) { | |
3127 | yyerror("Malformed UTF-8 returned by \\N"); | |
3128 | } | |
3129 | else if (PL_lex_inpat) { | |
3130 | ||
3131 | if (! len) { /* The name resolved to an empty string */ | |
3132 | Copy("\\N{}", d, 4, char); | |
3133 | d += 4; | |
3134 | } | |
3135 | else { | |
3136 | /* In order to not lose information for the regex | |
3137 | * compiler, pass the result in the specially made | |
3138 | * syntax: \N{U+c1.c2.c3...}, where c1 etc. are | |
3139 | * the code points in hex of each character | |
3140 | * returned by charnames */ | |
3141 | ||
3142 | const char *str_end = str + len; | |
3143 | STRLEN char_length; /* cur char's byte length */ | |
3144 | STRLEN output_length; /* and the number of bytes | |
3145 | after this is translated | |
3146 | into hex digits */ | |
3147 | const STRLEN off = d - SvPVX_const(sv); | |
3148 | ||
3149 | /* 2 hex per byte; 2 chars for '\N'; 2 chars for | |
3150 | * max('U+', '.'); and 1 for NUL */ | |
3151 | char hex_string[2 * UTF8_MAXBYTES + 5]; | |
3152 | ||
3153 | /* Get the first character of the result. */ | |
3154 | U32 uv = utf8n_to_uvuni((U8 *) str, | |
3155 | len, | |
3156 | &char_length, | |
3157 | UTF8_ALLOW_ANYUV); | |
3158 | ||
3159 | /* The call to is_utf8_string() above hopefully | |
3160 | * guarantees that there won't be an error. But | |
3161 | * it's easy here to make sure. The function just | |
3162 | * above warns and returns 0 if invalid utf8, but | |
3163 | * it can also return 0 if the input is validly a | |
3164 | * NUL. Disambiguate */ | |
3165 | if (uv == 0 && NATIVE_TO_ASCII(*str) != '\0') { | |
3166 | uv = UNICODE_REPLACEMENT; | |
3167 | } | |
3168 | ||
3169 | /* Convert first code point to hex, including the | |
3170 | * boiler plate before it */ | |
3171 | sprintf(hex_string, "\\N{U+%X", (unsigned int) uv); | |
3172 | output_length = strlen(hex_string); | |
3173 | ||
3174 | /* Make sure there is enough space to hold it */ | |
3175 | d = off + SvGROW(sv, off | |
3176 | + output_length | |
3177 | + (STRLEN)(send - e) | |
3178 | + 2); /* '}' + NUL */ | |
3179 | /* And output it */ | |
3180 | Copy(hex_string, d, output_length, char); | |
3181 | d += output_length; | |
3182 | ||
3183 | /* For each subsequent character, append dot and | |
3184 | * its ordinal in hex */ | |
3185 | while ((str += char_length) < str_end) { | |
3186 | const STRLEN off = d - SvPVX_const(sv); | |
3187 | U32 uv = utf8n_to_uvuni((U8 *) str, | |
3188 | str_end - str, | |
3189 | &char_length, | |
3190 | UTF8_ALLOW_ANYUV); | |
3191 | if (uv == 0 && NATIVE_TO_ASCII(*str) != '\0') { | |
3192 | uv = UNICODE_REPLACEMENT; | |
3193 | } | |
3194 | ||
3195 | sprintf(hex_string, ".%X", (unsigned int) uv); | |
3196 | output_length = strlen(hex_string); | |
3197 | ||
3198 | d = off + SvGROW(sv, off | |
3199 | + output_length | |
3200 | + (STRLEN)(send - e) | |
3201 | + 2); /* '}' + NUL */ | |
3202 | Copy(hex_string, d, output_length, char); | |
3203 | d += output_length; | |
3204 | } | |
3205 | ||
3206 | *d++ = '}'; /* Done. Add the trailing brace */ | |
3207 | } | |
3208 | } | |
3209 | else { /* Here, not in a pattern. Convert the name to a | |
3210 | * string. */ | |
3211 | ||
3212 | /* If destination is not in utf8, unconditionally | |
3213 | * recode it to be so. This is because \N{} implies | |
3214 | * Unicode semantics, and scalars have to be in utf8 | |
3215 | * to guarantee those semantics */ | |
3216 | if (! has_utf8) { | |
3217 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3218 | SvPOK_on(sv); | |
3219 | *d = '\0'; | |
3220 | /* See Note on sizing above. */ | |
3221 | sv_utf8_upgrade_flags_grow(sv, | |
3222 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3223 | len + (STRLEN)(send - s) + 1); | |
3224 | d = SvPVX(sv) + SvCUR(sv); | |
3225 | has_utf8 = TRUE; | |
3226 | } else if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ | |
3227 | ||
3228 | /* See Note on sizing above. (NOTE: SvCUR() is not | |
3229 | * set correctly here). */ | |
3230 | const STRLEN off = d - SvPVX_const(sv); | |
3231 | d = off + SvGROW(sv, off + len + (STRLEN)(send - s) + 1); | |
3232 | } | |
3233 | Copy(str, d, len, char); | |
3234 | d += len; | |
423cee85 | 3235 | } |
423cee85 | 3236 | SvREFCNT_dec(res); |
cb233ae3 KW |
3237 | |
3238 | /* Deprecate non-approved name syntax */ | |
3239 | if (ckWARN_d(WARN_DEPRECATED)) { | |
3240 | bool problematic = FALSE; | |
3241 | char* i = s; | |
3242 | ||
3243 | /* For non-ut8 input, look to see that the first | |
3244 | * character is an alpha, then loop through the rest | |
3245 | * checking that each is a continuation */ | |
3246 | if (! this_utf8) { | |
3247 | if (! isALPHAU(*i)) problematic = TRUE; | |
3248 | else for (i = s + 1; i < e; i++) { | |
3249 | if (isCHARNAME_CONT(*i)) continue; | |
3250 | problematic = TRUE; | |
3251 | break; | |
3252 | } | |
3253 | } | |
3254 | else { | |
3255 | /* Similarly for utf8. For invariants can check | |
3256 | * directly. We accept anything above the latin1 | |
3257 | * range because it is immaterial to Perl if it is | |
3258 | * correct or not, and is expensive to check. But | |
3259 | * it is fairly easy in the latin1 range to convert | |
3260 | * the variants into a single character and check | |
3261 | * those */ | |
3262 | if (UTF8_IS_INVARIANT(*i)) { | |
3263 | if (! isALPHAU(*i)) problematic = TRUE; | |
3264 | } else if (UTF8_IS_DOWNGRADEABLE_START(*i)) { | |
3265 | if (! isALPHAU(UNI_TO_NATIVE(UTF8_ACCUMULATE(*i, | |
3266 | *(i+1))))) | |
3267 | { | |
3268 | problematic = TRUE; | |
3269 | } | |
3270 | } | |
3271 | if (! problematic) for (i = s + UTF8SKIP(s); | |
3272 | i < e; | |
3273 | i+= UTF8SKIP(i)) | |
3274 | { | |
3275 | if (UTF8_IS_INVARIANT(*i)) { | |
3276 | if (isCHARNAME_CONT(*i)) continue; | |
3277 | } else if (! UTF8_IS_DOWNGRADEABLE_START(*i)) { | |
3278 | continue; | |
3279 | } else if (isCHARNAME_CONT( | |
3280 | UNI_TO_NATIVE( | |
3281 | UTF8_ACCUMULATE(*i, *(i+1))))) | |
3282 | { | |
3283 | continue; | |
3284 | } | |
3285 | problematic = TRUE; | |
3286 | break; | |
3287 | } | |
3288 | } | |
3289 | if (problematic) { | |
6e1bad6c KW |
3290 | /* The e-i passed to the final %.*s makes sure that |
3291 | * should the trailing NUL be missing that this | |
3292 | * print won't run off the end of the string */ | |
cb233ae3 | 3293 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), |
b00fc8d4 NC |
3294 | "Deprecated character in \\N{...}; marked by <-- HERE in \\N{%.*s<-- HERE %.*s", |
3295 | (int)(i - s + 1), s, (int)(e - i), i + 1); | |
cb233ae3 KW |
3296 | } |
3297 | } | |
3298 | } /* End \N{NAME} */ | |
ff3f963a KW |
3299 | #ifdef EBCDIC |
3300 | if (!dorange) | |
3301 | native_range = FALSE; /* \N{} is defined to be Unicode */ | |
3302 | #endif | |
3303 | s = e + 1; /* Point to just after the '}' */ | |
423cee85 JH |
3304 | continue; |
3305 | ||
02aa26ce | 3306 | /* \c is a control character */ |
79072805 LW |
3307 | case 'c': |
3308 | s++; | |
961ce445 | 3309 | if (s < send) { |
f9d13529 | 3310 | *d++ = grok_bslash_c(*s++, 1); |
ba210ebe | 3311 | } |
961ce445 RGS |
3312 | else { |
3313 | yyerror("Missing control char name in \\c"); | |
3314 | } | |
79072805 | 3315 | continue; |
02aa26ce NT |
3316 | |
3317 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 3318 | case 'b': |
db42d148 | 3319 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
3320 | break; |
3321 | case 'n': | |
db42d148 | 3322 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
3323 | break; |
3324 | case 'r': | |
db42d148 | 3325 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
3326 | break; |
3327 | case 'f': | |
db42d148 | 3328 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
3329 | break; |
3330 | case 't': | |
db42d148 | 3331 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 3332 | break; |
34a3fe2a | 3333 | case 'e': |
db42d148 | 3334 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
3335 | break; |
3336 | case 'a': | |
db42d148 | 3337 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 3338 | break; |
02aa26ce NT |
3339 | } /* end switch */ |
3340 | ||
79072805 LW |
3341 | s++; |
3342 | continue; | |
02aa26ce | 3343 | } /* end if (backslash) */ |
4c3a8340 TS |
3344 | #ifdef EBCDIC |
3345 | else | |
3346 | literal_endpoint++; | |
3347 | #endif | |
02aa26ce | 3348 | |
f9a63242 | 3349 | default_action: |
77a135fe KW |
3350 | /* If we started with encoded form, or already know we want it, |
3351 | then encode the next character */ | |
3352 | if (! NATIVE_IS_INVARIANT((U8)(*s)) && (this_utf8 || has_utf8)) { | |
2b9d42f0 | 3353 | STRLEN len = 1; |
77a135fe KW |
3354 | |
3355 | ||
3356 | /* One might think that it is wasted effort in the case of the | |
3357 | * source being utf8 (this_utf8 == TRUE) to take the next character | |
3358 | * in the source, convert it to an unsigned value, and then convert | |
3359 | * it back again. But the source has not been validated here. The | |
3360 | * routine that does the conversion checks for errors like | |
3361 | * malformed utf8 */ | |
3362 | ||
5f66b61c AL |
3363 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
3364 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
77a135fe KW |
3365 | if (!has_utf8) { |
3366 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3367 | SvPOK_on(sv); | |
3368 | *d = '\0'; | |
77a135fe | 3369 | /* See Note on sizing above. */ |
7bf79863 KW |
3370 | sv_utf8_upgrade_flags_grow(sv, |
3371 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3372 | need + (STRLEN)(send - s) + 1); | |
77a135fe KW |
3373 | d = SvPVX(sv) + SvCUR(sv); |
3374 | has_utf8 = TRUE; | |
3375 | } else if (need > len) { | |
3376 | /* encoded value larger than old, may need extra space (NOTE: | |
3377 | * SvCUR() is not set correctly here). See Note on sizing | |
3378 | * above. */ | |
9d4ba2ae | 3379 | const STRLEN off = d - SvPVX_const(sv); |
77a135fe | 3380 | d = SvGROW(sv, off + need + (STRLEN)(send - s) + 1) + off; |
2b9d42f0 | 3381 | } |
77a135fe KW |
3382 | s += len; |
3383 | ||
5f66b61c | 3384 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
e294cc5d JH |
3385 | #ifdef EBCDIC |
3386 | if (uv > 255 && !dorange) | |
3387 | native_range = FALSE; | |
3388 | #endif | |
2b9d42f0 NIS |
3389 | } |
3390 | else { | |
3391 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
3392 | } | |
02aa26ce NT |
3393 | } /* while loop to process each character */ |
3394 | ||
3395 | /* terminate the string and set up the sv */ | |
79072805 | 3396 | *d = '\0'; |
95a20fc0 | 3397 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 3398 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 3399 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 3400 | |
79072805 | 3401 | SvPOK_on(sv); |
9f4817db | 3402 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
3403 | sv_recode_to_utf8(sv, PL_encoding); |
3404 | if (SvUTF8(sv)) | |
3405 | has_utf8 = TRUE; | |
9f4817db | 3406 | } |
2b9d42f0 | 3407 | if (has_utf8) { |
7e2040f0 | 3408 | SvUTF8_on(sv); |
2b9d42f0 | 3409 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 3410 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
3411 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
3412 | } | |
3413 | } | |
79072805 | 3414 | |
02aa26ce | 3415 | /* shrink the sv if we allocated more than we used */ |
79072805 | 3416 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 3417 | SvPV_shrink_to_cur(sv); |
79072805 | 3418 | } |
02aa26ce | 3419 | |
6154021b | 3420 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 3421 | if (s > PL_bufptr) { |
eb0d8d16 NC |
3422 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
3423 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
3424 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
3425 | const char *type; | |
3426 | STRLEN typelen; | |
3427 | ||
3428 | if (PL_lex_inwhat == OP_TRANS) { | |
3429 | type = "tr"; | |
3430 | typelen = 2; | |
3431 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
3432 | type = "s"; | |
3433 | typelen = 1; | |
3434 | } else { | |
3435 | type = "qq"; | |
3436 | typelen = 2; | |
3437 | } | |
3438 | ||
3439 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
3440 | type, typelen); | |
3441 | } | |
6154021b | 3442 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 3443 | } else |
8990e307 | 3444 | SvREFCNT_dec(sv); |
79072805 LW |
3445 | return s; |
3446 | } | |
3447 | ||
ffb4593c NT |
3448 | /* S_intuit_more |
3449 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
3450 | * FALSE otherwise. | |
ffb4593c NT |
3451 | * |
3452 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
3453 | * | |
3454 | * ->[ and ->{ return TRUE | |
3455 | * { and [ outside a pattern are always subscripts, so return TRUE | |
3456 | * if we're outside a pattern and it's not { or [, then return FALSE | |
3457 | * if we're in a pattern and the first char is a { | |
3458 | * {4,5} (any digits around the comma) returns FALSE | |
3459 | * if we're in a pattern and the first char is a [ | |
3460 | * [] returns FALSE | |
3461 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
3462 | * character class or not. It has to deal with things like | |
3463 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
3464 | * anything else returns TRUE | |
3465 | */ | |
3466 | ||
9cbb5ea2 GS |
3467 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
3468 | ||
76e3520e | 3469 | STATIC int |
cea2e8a9 | 3470 | S_intuit_more(pTHX_ register char *s) |
79072805 | 3471 | { |
97aff369 | 3472 | dVAR; |
7918f24d NC |
3473 | |
3474 | PERL_ARGS_ASSERT_INTUIT_MORE; | |
3475 | ||
3280af22 | 3476 | if (PL_lex_brackets) |
79072805 LW |
3477 | return TRUE; |
3478 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
3479 | return TRUE; | |
3480 | if (*s != '{' && *s != '[') | |
3481 | return FALSE; | |
3280af22 | 3482 | if (!PL_lex_inpat) |
79072805 LW |
3483 | return TRUE; |
3484 | ||
3485 | /* In a pattern, so maybe we have {n,m}. */ | |
3486 | if (*s == '{') { | |
3487 | s++; | |
3488 | if (!isDIGIT(*s)) | |
3489 | return TRUE; | |
3490 | while (isDIGIT(*s)) | |
3491 | s++; | |
3492 | if (*s == ',') | |
3493 | s++; | |
3494 | while (isDIGIT(*s)) | |
3495 | s++; | |
3496 | if (*s == '}') | |
3497 | return FALSE; | |
3498 | return TRUE; | |
3499 | ||
3500 | } | |
3501 | ||
3502 | /* On the other hand, maybe we have a character class */ | |
3503 | ||
3504 | s++; | |
3505 | if (*s == ']' || *s == '^') | |
3506 | return FALSE; | |
3507 | else { | |
ffb4593c | 3508 | /* this is terrifying, and it works */ |
79072805 LW |
3509 | int weight = 2; /* let's weigh the evidence */ |
3510 | char seen[256]; | |
f27ffc4a | 3511 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 3512 | const char * const send = strchr(s,']'); |
3280af22 | 3513 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
3514 | |
3515 | if (!send) /* has to be an expression */ | |
3516 | return TRUE; | |
3517 | ||
3518 | Zero(seen,256,char); | |
3519 | if (*s == '$') | |
3520 | weight -= 3; | |
3521 | else if (isDIGIT(*s)) { | |
3522 | if (s[1] != ']') { | |
3523 | if (isDIGIT(s[1]) && s[2] == ']') | |
3524 | weight -= 10; | |
3525 | } | |
3526 | else | |
3527 | weight -= 100; | |
3528 | } | |
3529 | for (; s < send; s++) { | |
3530 | last_un_char = un_char; | |
3531 | un_char = (unsigned char)*s; | |
3532 | switch (*s) { | |
3533 | case '@': | |
3534 | case '&': | |
3535 | case '$': | |
3536 | weight -= seen[un_char] * 10; | |
7e2040f0 | 3537 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 3538 | int len; |
8903cb82 | 3539 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
3540 | len = (int)strlen(tmpbuf); |
3541 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
3542 | weight -= 100; |
3543 | else | |
3544 | weight -= 10; | |
3545 | } | |
3546 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
3547 | strchr("[#!%*<>()-=",s[1])) { |
3548 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
3549 | weight -= 10; |
3550 | else | |
3551 | weight -= 1; | |
3552 | } | |
3553 | break; | |
3554 | case '\\': | |
3555 | un_char = 254; | |
3556 | if (s[1]) { | |
93a17b20 | 3557 | if (strchr("wds]",s[1])) |
79072805 | 3558 | weight += 100; |
10edeb5d | 3559 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 3560 | weight += 1; |
93a17b20 | 3561 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
3562 | weight += 40; |
3563 | else if (isDIGIT(s[1])) { | |
3564 | weight += 40; | |
3565 | while (s[1] && isDIGIT(s[1])) | |
3566 | s++; | |
3567 | } | |
3568 | } | |
3569 | else | |
3570 | weight += 100; | |
3571 | break; | |
3572 | case '-': | |
3573 | if (s[1] == '\\') | |
3574 | weight += 50; | |
93a17b20 | 3575 | if (strchr("aA01! ",last_un_char)) |
79072805 | 3576 | weight += 30; |
93a17b20 | 3577 | if (strchr("zZ79~",s[1])) |
79072805 | 3578 | weight += 30; |
f27ffc4a GS |
3579 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
3580 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
3581 | break; |
3582 | default: | |
3792a11b NC |
3583 | if (!isALNUM(last_un_char) |
3584 | && !(last_un_char == '$' || last_un_char == '@' | |
3585 | || last_un_char == '&') | |
3586 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
3587 | char *d = tmpbuf; |
3588 | while (isALPHA(*s)) | |
3589 | *d++ = *s++; | |
3590 | *d = '\0'; | |
5458a98a | 3591 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
3592 | weight -= 150; |
3593 | } | |
3594 | if (un_char == last_un_char + 1) | |
3595 | weight += 5; | |
3596 | weight -= seen[un_char]; | |
3597 | break; | |
3598 | } | |
3599 | seen[un_char]++; | |
3600 | } | |
3601 | if (weight >= 0) /* probably a character class */ | |
3602 | return FALSE; | |
3603 | } | |
3604 | ||
3605 | return TRUE; | |
3606 | } | |
ffed7fef | 3607 | |
ffb4593c NT |
3608 | /* |
3609 | * S_intuit_method | |
3610 | * | |
3611 | * Does all the checking to disambiguate | |
3612 | * foo bar | |
3613 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
3614 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
3615 | * | |
3616 | * First argument is the stuff after the first token, e.g. "bar". | |
3617 | * | |
3618 | * Not a method if bar is a filehandle. | |
3619 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
3620 | * Not a method if it's really "Foo $bar" | |
3621 | * Method if it's "foo $bar" | |
3622 | * Not a method if it's really "print foo $bar" | |
3623 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 3624 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 3625 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
3626 | * => |
3627 | */ | |
3628 | ||
76e3520e | 3629 | STATIC int |
62d55b22 | 3630 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 3631 | { |
97aff369 | 3632 | dVAR; |
a0d0e21e | 3633 | char *s = start + (*start == '$'); |
3280af22 | 3634 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
3635 | STRLEN len; |
3636 | GV* indirgv; | |
5db06880 NC |
3637 | #ifdef PERL_MAD |
3638 | int soff; | |
3639 | #endif | |
a0d0e21e | 3640 | |
7918f24d NC |
3641 | PERL_ARGS_ASSERT_INTUIT_METHOD; |
3642 | ||
a0d0e21e | 3643 | if (gv) { |
62d55b22 | 3644 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 3645 | return 0; |
62d55b22 NC |
3646 | if (cv) { |
3647 | if (SvPOK(cv)) { | |
3648 | const char *proto = SvPVX_const(cv); | |
3649 | if (proto) { | |
3650 | if (*proto == ';') | |
3651 | proto++; | |
3652 | if (*proto == '*') | |
3653 | return 0; | |
3654 | } | |
b6c543e3 IZ |
3655 | } |
3656 | } else | |
c35e046a | 3657 | gv = NULL; |
a0d0e21e | 3658 | } |
8903cb82 | 3659 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
3660 | /* start is the beginning of the possible filehandle/object, |
3661 | * and s is the end of it | |
3662 | * tmpbuf is a copy of it | |
3663 | */ | |
3664 | ||
a0d0e21e | 3665 | if (*start == '$') { |
3ef1310e RGS |
3666 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
3667 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 3668 | return 0; |
5db06880 NC |
3669 | #ifdef PERL_MAD |
3670 | len = start - SvPVX(PL_linestr); | |
3671 | #endif | |
29595ff2 | 3672 | s = PEEKSPACE(s); |
f0092767 | 3673 | #ifdef PERL_MAD |
5db06880 NC |
3674 | start = SvPVX(PL_linestr) + len; |
3675 | #endif | |
3280af22 NIS |
3676 | PL_bufptr = start; |
3677 | PL_expect = XREF; | |
a0d0e21e LW |
3678 | return *s == '(' ? FUNCMETH : METHOD; |
3679 | } | |
5458a98a | 3680 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
3681 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
3682 | len -= 2; | |
3683 | tmpbuf[len] = '\0'; | |
5db06880 NC |
3684 | #ifdef PERL_MAD |
3685 | soff = s - SvPVX(PL_linestr); | |
3686 | #endif | |
c3e0f903 GS |
3687 | goto bare_package; |
3688 | } | |
90e5519e | 3689 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 3690 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
3691 | return 0; |
3692 | /* filehandle or package name makes it a method */ | |
da51bb9b | 3693 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
3694 | #ifdef PERL_MAD |
3695 | soff = s - SvPVX(PL_linestr); | |
3696 | #endif | |
29595ff2 | 3697 | s = PEEKSPACE(s); |
3280af22 | 3698 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 3699 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 3700 | bare_package: |
cd81e915 | 3701 | start_force(PL_curforce); |
9ded7720 | 3702 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
64142370 | 3703 | S_newSV_maybe_utf8(aTHX_ tmpbuf, len)); |
9ded7720 | 3704 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
3705 | if (PL_madskills) |
3706 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 3707 | PL_expect = XTERM; |
a0d0e21e | 3708 | force_next(WORD); |
3280af22 | 3709 | PL_bufptr = s; |
5db06880 NC |
3710 | #ifdef PERL_MAD |
3711 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
3712 | #endif | |
a0d0e21e LW |
3713 | return *s == '(' ? FUNCMETH : METHOD; |
3714 | } | |
3715 | } | |
3716 | return 0; | |
3717 | } | |
3718 | ||
16d20bd9 | 3719 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 3720 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
3721 | * Note that the filter function only applies to the current source file |
3722 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
3723 | * | |
3724 | * The datasv parameter (which may be NULL) can be used to pass | |
3725 | * private data to this instance of the filter. The filter function | |
3726 | * can recover the SV using the FILTER_DATA macro and use it to | |
3727 | * store private buffers and state information. | |
3728 | * | |
3729 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 3730 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 3731 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
3732 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
3733 | * private use must be set using malloc'd pointers. | |
3734 | */ | |
16d20bd9 AD |
3735 | |
3736 | SV * | |
864dbfa3 | 3737 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 3738 | { |
97aff369 | 3739 | dVAR; |
f4c556ac | 3740 | if (!funcp) |
a0714e2c | 3741 | return NULL; |
f4c556ac | 3742 | |
5486870f DM |
3743 | if (!PL_parser) |
3744 | return NULL; | |
3745 | ||
3280af22 NIS |
3746 | if (!PL_rsfp_filters) |
3747 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 3748 | if (!datasv) |
561b68a9 | 3749 | datasv = newSV(0); |
862a34c6 | 3750 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 3751 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 3752 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 3753 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
3754 | FPTR2DPTR(void *, IoANY(datasv)), |
3755 | SvPV_nolen(datasv))); | |
3280af22 NIS |
3756 | av_unshift(PL_rsfp_filters, 1); |
3757 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
3758 | return(datasv); |
3759 | } | |
4e553d73 | 3760 | |
16d20bd9 AD |
3761 | |
3762 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 3763 | void |
864dbfa3 | 3764 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 3765 | { |
97aff369 | 3766 | dVAR; |
e0c19803 | 3767 | SV *datasv; |
24801a4b | 3768 | |
7918f24d NC |
3769 | PERL_ARGS_ASSERT_FILTER_DEL; |
3770 | ||
33073adb | 3771 | #ifdef DEBUGGING |
55662e27 JH |
3772 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
3773 | FPTR2DPTR(void*, funcp))); | |
33073adb | 3774 | #endif |
5486870f | 3775 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
3776 | return; |
3777 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 3778 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 3779 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
3280af22 | 3780 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 3781 | |
16d20bd9 AD |
3782 | return; |
3783 | } | |
3784 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 3785 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
3786 | } |
3787 | ||
3788 | ||
1de9afcd RGS |
3789 | /* Invoke the idxth filter function for the current rsfp. */ |
3790 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 3791 | I32 |
864dbfa3 | 3792 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 3793 | { |
97aff369 | 3794 | dVAR; |
16d20bd9 AD |
3795 | filter_t funcp; |
3796 | SV *datasv = NULL; | |
f482118e NC |
3797 | /* This API is bad. It should have been using unsigned int for maxlen. |
3798 | Not sure if we want to change the API, but if not we should sanity | |
3799 | check the value here. */ | |
39cd7a59 NC |
3800 | const unsigned int correct_length |
3801 | = maxlen < 0 ? | |
3802 | #ifdef PERL_MICRO | |
3803 | 0x7FFFFFFF | |
3804 | #else | |
3805 | INT_MAX | |
3806 | #endif | |
3807 | : maxlen; | |
e50aee73 | 3808 | |
7918f24d NC |
3809 | PERL_ARGS_ASSERT_FILTER_READ; |
3810 | ||
5486870f | 3811 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 3812 | return -1; |
1de9afcd | 3813 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
3814 | /* Provide a default input filter to make life easy. */ |
3815 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
3816 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3817 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 3818 | if (correct_length) { |
16d20bd9 AD |
3819 | /* Want a block */ |
3820 | int len ; | |
f54cb97a | 3821 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
3822 | |
3823 | /* ensure buf_sv is large enough */ | |
881d8f0a | 3824 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length + 1)) ; |
f482118e NC |
3825 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, |
3826 | correct_length)) <= 0) { | |
3280af22 | 3827 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
3828 | return -1; /* error */ |
3829 | else | |
3830 | return 0 ; /* end of file */ | |
3831 | } | |
16d20bd9 | 3832 | SvCUR_set(buf_sv, old_len + len) ; |
881d8f0a | 3833 | SvPVX(buf_sv)[old_len + len] = '\0'; |
16d20bd9 AD |
3834 | } else { |
3835 | /* Want a line */ | |
3280af22 NIS |
3836 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
3837 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
3838 | return -1; /* error */ |
3839 | else | |
3840 | return 0 ; /* end of file */ | |
3841 | } | |
16d20bd9 AD |
3842 | } |
3843 | return SvCUR(buf_sv); | |
3844 | } | |
3845 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 3846 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
3847 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3848 | "filter_read %d: skipped (filter deleted)\n", | |
3849 | idx)); | |
f482118e | 3850 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
3851 | } |
3852 | /* Get function pointer hidden within datasv */ | |
8141890a | 3853 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
3854 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3855 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 3856 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
3857 | /* Call function. The function is expected to */ |
3858 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 3859 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 3860 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
3861 | } |
3862 | ||
76e3520e | 3863 | STATIC char * |
5cc814fd | 3864 | S_filter_gets(pTHX_ register SV *sv, STRLEN append) |
16d20bd9 | 3865 | { |
97aff369 | 3866 | dVAR; |
7918f24d NC |
3867 | |
3868 | PERL_ARGS_ASSERT_FILTER_GETS; | |
3869 | ||
c39cd008 | 3870 | #ifdef PERL_CR_FILTER |
3280af22 | 3871 | if (!PL_rsfp_filters) { |
c39cd008 | 3872 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
3873 | } |
3874 | #endif | |
3280af22 | 3875 | if (PL_rsfp_filters) { |
55497cff | 3876 | if (!append) |
3877 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
3878 | if (FILTER_READ(0, sv, 0) > 0) |
3879 | return ( SvPVX(sv) ) ; | |
3880 | else | |
bd61b366 | 3881 | return NULL ; |
16d20bd9 | 3882 | } |
9d116dd7 | 3883 | else |
5cc814fd | 3884 | return (sv_gets(sv, PL_rsfp, append)); |
a0d0e21e LW |
3885 | } |
3886 | ||
01ec43d0 | 3887 | STATIC HV * |
9bde8eb0 | 3888 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 3889 | { |
97aff369 | 3890 | dVAR; |
def3634b GS |
3891 | GV *gv; |
3892 | ||
7918f24d NC |
3893 | PERL_ARGS_ASSERT_FIND_IN_MY_STASH; |
3894 | ||
01ec43d0 | 3895 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
3896 | return PL_curstash; |
3897 | ||
3898 | if (len > 2 && | |
3899 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 3900 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
3901 | { |
3902 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
3903 | } |
3904 | ||
3905 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
3906 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
3907 | if (gv && GvCV(gv)) { | |
3908 | SV * const sv = cv_const_sv(GvCV(gv)); | |
3909 | if (sv) | |
9bde8eb0 | 3910 | pkgname = SvPV_const(sv, len); |
def3634b GS |
3911 | } |
3912 | ||
9bde8eb0 | 3913 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 3914 | } |
a0d0e21e | 3915 | |
e3f73d4e RGS |
3916 | /* |
3917 | * S_readpipe_override | |
3918 | * Check whether readpipe() is overriden, and generates the appropriate | |
3919 | * optree, provided sublex_start() is called afterwards. | |
3920 | */ | |
3921 | STATIC void | |
1d51329b | 3922 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
3923 | { |
3924 | GV **gvp; | |
3925 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 3926 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
3927 | if ((gv_readpipe |
3928 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
3929 | || | |
3930 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 3931 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
3932 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
3933 | { | |
3934 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3935 | append_elem(OP_LIST, | |
3936 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
3937 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
3938 | } | |
e3f73d4e RGS |
3939 | } |
3940 | ||
5db06880 NC |
3941 | #ifdef PERL_MAD |
3942 | /* | |
3943 | * Perl_madlex | |
3944 | * The intent of this yylex wrapper is to minimize the changes to the | |
3945 | * tokener when we aren't interested in collecting madprops. It remains | |
3946 | * to be seen how successful this strategy will be... | |
3947 | */ | |
3948 | ||
3949 | int | |
3950 | Perl_madlex(pTHX) | |
3951 | { | |
3952 | int optype; | |
3953 | char *s = PL_bufptr; | |
3954 | ||
cd81e915 NC |
3955 | /* make sure PL_thiswhite is initialized */ |
3956 | PL_thiswhite = 0; | |
3957 | PL_thismad = 0; | |
5db06880 | 3958 | |
cd81e915 | 3959 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
28ac2b49 | 3960 | if (PL_lex_state != LEX_KNOWNEXT && PL_pending_ident) |
5db06880 NC |
3961 | return S_pending_ident(aTHX); |
3962 | ||
3963 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3964 | if (!PL_lasttoke && PL_nextwhite) { |
3965 | PL_thiswhite = PL_nextwhite; | |
3966 | PL_nextwhite = 0; | |
5db06880 NC |
3967 | } |
3968 | ||
3969 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3970 | PL_realtokenstart = -1; |
3971 | PL_thistoken = 0; | |
5db06880 NC |
3972 | optype = yylex(); |
3973 | s = PL_bufptr; | |
cd81e915 | 3974 | assert(PL_curforce < 0); |
5db06880 | 3975 | |
cd81e915 NC |
3976 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3977 | if (!PL_thistoken) { | |
3978 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3979 | PL_thistoken = newSVpvs(""); |
5db06880 | 3980 | else { |
c35e046a | 3981 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3982 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3983 | } |
3984 | } | |
cd81e915 NC |
3985 | if (PL_thismad) /* install head */ |
3986 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3987 | } |
3988 | ||
3989 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3990 | if (optype == ')' && PL_endwhite) { |
3991 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3992 | } |
3993 | ||
cd81e915 | 3994 | if (!PL_thismad) { |
5db06880 NC |
3995 | |
3996 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3997 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3998 | sv_free(PL_thistoken); | |
3999 | PL_thistoken = 0; | |
5db06880 NC |
4000 | return 0; |
4001 | } | |
4002 | ||
4003 | /* put off final whitespace till peg */ | |
4004 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
4005 | PL_nextwhite = PL_thiswhite; |
4006 | PL_thiswhite = 0; | |
5db06880 | 4007 | } |
cd81e915 NC |
4008 | else if (PL_thisopen) { |
4009 | CURMAD('q', PL_thisopen); | |
4010 | if (PL_thistoken) | |
4011 | sv_free(PL_thistoken); | |
4012 | PL_thistoken = 0; | |
5db06880 NC |
4013 | } |
4014 | else { | |
4015 | /* Store actual token text as madprop X */ | |
cd81e915 | 4016 | CURMAD('X', PL_thistoken); |
5db06880 NC |
4017 | } |
4018 | ||
cd81e915 | 4019 | if (PL_thiswhite) { |
5db06880 | 4020 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 4021 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
4022 | } |
4023 | ||
cd81e915 | 4024 | if (PL_thisstuff) { |
5db06880 | 4025 | /* add quoted material as madprop = */ |
cd81e915 | 4026 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
4027 | } |
4028 | ||
cd81e915 | 4029 | if (PL_thisclose) { |
5db06880 | 4030 | /* add terminating quote as madprop Q */ |
cd81e915 | 4031 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
4032 | } |
4033 | } | |
4034 | ||
4035 | /* special processing based on optype */ | |
4036 | ||
4037 | switch (optype) { | |
4038 | ||
4039 | /* opval doesn't need a TOKEN since it can already store mp */ | |
4040 | case WORD: | |
4041 | case METHOD: | |
4042 | case FUNCMETH: | |
4043 | case THING: | |
4044 | case PMFUNC: | |
4045 | case PRIVATEREF: | |
4046 | case FUNC0SUB: | |
4047 | case UNIOPSUB: | |
4048 | case LSTOPSUB: | |
6154021b RGS |
4049 | if (pl_yylval.opval) |
4050 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 4051 | PL_thismad = 0; |
5db06880 NC |
4052 | return optype; |
4053 | ||
4054 | /* fake EOF */ | |
4055 | case 0: | |
4056 | optype = PEG; | |
cd81e915 NC |
4057 | if (PL_endwhite) { |
4058 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
4059 | PL_endwhite = 0; | |
5db06880 NC |
4060 | } |
4061 | break; | |
4062 | ||
4063 | case ']': | |
4064 | case '}': | |
cd81e915 | 4065 | if (PL_faketokens) |
5db06880 NC |
4066 | break; |
4067 | /* remember any fake bracket that lexer is about to discard */ | |
4068 | if (PL_lex_brackets == 1 && | |
4069 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
4070 | { | |
4071 | s = PL_bufptr; | |
4072 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
4073 | s++; | |
4074 | if (*s == '}') { | |
cd81e915 NC |
4075 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
4076 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
4077 | PL_thiswhite = 0; | |
5db06880 NC |
4078 | PL_bufptr = s - 1; |
4079 | break; /* don't bother looking for trailing comment */ | |
4080 | } | |
4081 | else | |
4082 | s = PL_bufptr; | |
4083 | } | |
4084 | if (optype == ']') | |
4085 | break; | |
4086 | /* FALLTHROUGH */ | |
4087 | ||
4088 | /* attach a trailing comment to its statement instead of next token */ | |
4089 | case ';': | |
cd81e915 | 4090 | if (PL_faketokens) |
5db06880 NC |
4091 | break; |
4092 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
4093 | s = PL_bufptr; | |
4094 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
4095 | s++; | |
4096 | if (*s == '\n' || *s == '#') { | |
4097 | while (s < PL_bufend && *s != '\n') | |
4098 | s++; | |
4099 | if (s < PL_bufend) | |
4100 | s++; | |
cd81e915 NC |
4101 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
4102 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
4103 | PL_thiswhite = 0; | |
5db06880 NC |
4104 | PL_bufptr = s; |
4105 | } | |
4106 | } | |
4107 | break; | |
4108 | ||
4109 | /* pval */ | |
4110 | case LABEL: | |
4111 | break; | |
4112 | ||
4113 | /* ival */ | |
4114 | default: | |
4115 | break; | |
4116 | ||
4117 | } | |
4118 | ||
4119 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 4120 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 4121 | PL_thismad = 0; |
5db06880 NC |
4122 | return optype; |
4123 | } | |
4124 | #endif | |
4125 | ||
468aa647 | 4126 | STATIC char * |
cc6ed77d | 4127 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 4128 | dVAR; |
7918f24d NC |
4129 | |
4130 | PERL_ARGS_ASSERT_TOKENIZE_USE; | |
4131 | ||
468aa647 RGS |
4132 | if (PL_expect != XSTATE) |
4133 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
4134 | is_use ? "use" : "no")); | |
29595ff2 | 4135 | s = SKIPSPACE1(s); |
468aa647 RGS |
4136 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
4137 | s = force_version(s, TRUE); | |
17c59fdf VP |
4138 | if (*s == ';' || *s == '}' |
4139 | || (s = SKIPSPACE1(s), (*s == ';' || *s == '}'))) { | |
cd81e915 | 4140 | start_force(PL_curforce); |
9ded7720 | 4141 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
4142 | force_next(WORD); |
4143 | } | |
4144 | else if (*s == 'v') { | |
4145 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
4146 | s = force_version(s, FALSE); | |
4147 | } | |
4148 | } | |
4149 | else { | |
4150 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
4151 | s = force_version(s, FALSE); | |
4152 | } | |
6154021b | 4153 | pl_yylval.ival = is_use; |
468aa647 RGS |
4154 | return s; |
4155 | } | |
748a9306 | 4156 | #ifdef DEBUGGING |
27da23d5 | 4157 | static const char* const exp_name[] = |
09bef843 | 4158 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 4159 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 4160 | }; |
748a9306 | 4161 | #endif |
463ee0b2 | 4162 | |
02aa26ce NT |
4163 | /* |
4164 | yylex | |
4165 | ||
4166 | Works out what to call the token just pulled out of the input | |
4167 | stream. The yacc parser takes care of taking the ops we return and | |
4168 | stitching them into a tree. | |
4169 | ||
4170 | Returns: | |
4171 | PRIVATEREF | |
4172 | ||
4173 | Structure: | |
4174 | if read an identifier | |
4175 | if we're in a my declaration | |
4176 | croak if they tried to say my($foo::bar) | |
4177 | build the ops for a my() declaration | |
4178 | if it's an access to a my() variable | |
4179 | are we in a sort block? | |
4180 | croak if my($a); $a <=> $b | |
4181 | build ops for access to a my() variable | |
4182 | if in a dq string, and they've said @foo and we can't find @foo | |
4183 | croak | |
4184 | build ops for a bareword | |
4185 | if we already built the token before, use it. | |
4186 | */ | |
4187 | ||
20141f0e | 4188 | |
dba4d153 JH |
4189 | #ifdef __SC__ |
4190 | #pragma segment Perl_yylex | |
4191 | #endif | |
dba4d153 | 4192 | int |
dba4d153 | 4193 | Perl_yylex(pTHX) |
20141f0e | 4194 | { |
97aff369 | 4195 | dVAR; |
3afc138a | 4196 | register char *s = PL_bufptr; |
378cc40b | 4197 | register char *d; |
463ee0b2 | 4198 | STRLEN len; |
aa7440fb | 4199 | bool bof = FALSE; |
580561a3 | 4200 | U32 fake_eof = 0; |
a687059c | 4201 | |
10edeb5d JH |
4202 | /* orig_keyword, gvp, and gv are initialized here because |
4203 | * jump to the label just_a_word_zero can bypass their | |
4204 | * initialization later. */ | |
4205 | I32 orig_keyword = 0; | |
4206 | GV *gv = NULL; | |
4207 | GV **gvp = NULL; | |
4208 | ||
bbf60fe6 | 4209 | DEBUG_T( { |
396482e1 | 4210 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
4211 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
4212 | (IV)CopLINE(PL_curcop), | |
4213 | lex_state_names[PL_lex_state], | |
4214 | exp_name[PL_expect], | |
4215 | pv_display(tmp, s, strlen(s), 0, 60)); | |
4216 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 4217 | } ); |
02aa26ce | 4218 | /* check if there's an identifier for us to look at */ |
28ac2b49 | 4219 | if (PL_lex_state != LEX_KNOWNEXT && PL_pending_ident) |
bbf60fe6 | 4220 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 4221 | |
02aa26ce NT |
4222 | /* no identifier pending identification */ |
4223 | ||
3280af22 | 4224 | switch (PL_lex_state) { |
79072805 LW |
4225 | #ifdef COMMENTARY |
4226 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
4227 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
4228 | break; | |
4229 | #endif | |
4230 | ||
09bef843 | 4231 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 4232 | case LEX_KNOWNEXT: |
5db06880 NC |
4233 | #ifdef PERL_MAD |
4234 | PL_lasttoke--; | |
6154021b | 4235 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 4236 | if (PL_madskills) { |
cd81e915 | 4237 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 4238 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 | 4239 | if (PL_thismad && PL_thismad->mad_key == '_') { |
daba3364 | 4240 | PL_thiswhite = MUTABLE_SV(PL_thismad->mad_val); |
cd81e915 NC |
4241 | PL_thismad->mad_val = 0; |
4242 | mad_free(PL_thismad); | |
4243 | PL_thismad = 0; | |
5db06880 NC |
4244 | } |
4245 | } | |
4246 | if (!PL_lasttoke) { | |
4247 | PL_lex_state = PL_lex_defer; | |
4248 | PL_expect = PL_lex_expect; | |
4249 | PL_lex_defer = LEX_NORMAL; | |
4250 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
4251 | return yylex(); | |
4252 | } | |
4253 | #else | |
3280af22 | 4254 | PL_nexttoke--; |
6154021b | 4255 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
4256 | if (!PL_nexttoke) { |
4257 | PL_lex_state = PL_lex_defer; | |
4258 | PL_expect = PL_lex_expect; | |
4259 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 4260 | } |
5db06880 NC |
4261 | #endif |
4262 | #ifdef PERL_MAD | |
4263 | /* FIXME - can these be merged? */ | |
4264 | return(PL_nexttoke[PL_lasttoke].next_type); | |
4265 | #else | |
bbf60fe6 | 4266 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 4267 | #endif |
79072805 | 4268 | |
02aa26ce | 4269 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 4270 | when we get here, PL_bufptr is at the \ |
02aa26ce | 4271 | */ |
79072805 LW |
4272 | case LEX_INTERPCASEMOD: |
4273 | #ifdef DEBUGGING | |
3280af22 | 4274 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 4275 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 4276 | #endif |
02aa26ce | 4277 | /* handle \E or end of string */ |
3280af22 | 4278 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 4279 | /* if at a \E */ |
3280af22 | 4280 | if (PL_lex_casemods) { |
f54cb97a | 4281 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 4282 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 4283 | |
3792a11b NC |
4284 | if (PL_bufptr != PL_bufend |
4285 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
4286 | PL_bufptr += 2; |
4287 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4288 | #ifdef PERL_MAD |
4289 | if (PL_madskills) | |
6b29d1f5 | 4290 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 4291 | #endif |
a0d0e21e | 4292 | } |
bbf60fe6 | 4293 | return REPORT(')'); |
79072805 | 4294 | } |
5db06880 NC |
4295 | #ifdef PERL_MAD |
4296 | while (PL_bufptr != PL_bufend && | |
4297 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 4298 | if (!PL_thiswhite) |
6b29d1f5 | 4299 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4300 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
4301 | PL_bufptr += 2; |
4302 | } | |
4303 | #else | |
3280af22 NIS |
4304 | if (PL_bufptr != PL_bufend) |
4305 | PL_bufptr += 2; | |
5db06880 | 4306 | #endif |
3280af22 | 4307 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 4308 | return yylex(); |
79072805 LW |
4309 | } |
4310 | else { | |
607df283 | 4311 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4312 | "### Saw case modifier\n"); }); |
3280af22 | 4313 | s = PL_bufptr + 1; |
6e909404 | 4314 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 4315 | #ifdef PERL_MAD |
cd81e915 | 4316 | if (!PL_thiswhite) |
6b29d1f5 | 4317 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4318 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 4319 | #endif |
89122651 | 4320 | PL_bufptr = s + 3; |
6e909404 JH |
4321 | PL_lex_state = LEX_INTERPCONCAT; |
4322 | return yylex(); | |
a0d0e21e | 4323 | } |
6e909404 | 4324 | else { |
90771dc0 | 4325 | I32 tmp; |
5db06880 NC |
4326 | if (!PL_madskills) /* when just compiling don't need correct */ |
4327 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
4328 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 4329 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
4330 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
4331 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 4332 | return REPORT(')'); |
6e909404 JH |
4333 | } |
4334 | if (PL_lex_casemods > 10) | |
4335 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
4336 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
4337 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
4338 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 4339 | start_force(PL_curforce); |
9ded7720 | 4340 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 4341 | force_next('('); |
cd81e915 | 4342 | start_force(PL_curforce); |
6e909404 | 4343 | if (*s == 'l') |
9ded7720 | 4344 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 4345 | else if (*s == 'u') |
9ded7720 | 4346 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 4347 | else if (*s == 'L') |
9ded7720 | 4348 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 4349 | else if (*s == 'U') |
9ded7720 | 4350 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 4351 | else if (*s == 'Q') |
9ded7720 | 4352 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
4353 | else |
4354 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 4355 | if (PL_madskills) { |
a5849ce5 NC |
4356 | SV* const tmpsv = newSVpvs("\\ "); |
4357 | /* replace the space with the character we want to escape | |
4358 | */ | |
4359 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
4360 | curmad('_', tmpsv); |
4361 | } | |
6e909404 | 4362 | PL_bufptr = s + 1; |
a0d0e21e | 4363 | } |
79072805 | 4364 | force_next(FUNC); |
3280af22 NIS |
4365 | if (PL_lex_starts) { |
4366 | s = PL_bufptr; | |
4367 | PL_lex_starts = 0; | |
5db06880 NC |
4368 | #ifdef PERL_MAD |
4369 | if (PL_madskills) { | |
cd81e915 NC |
4370 | if (PL_thistoken) |
4371 | sv_free(PL_thistoken); | |
6b29d1f5 | 4372 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4373 | } |
4374 | #endif | |
131b3ad0 DM |
4375 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4376 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
4377 | OPERATOR(','); | |
4378 | else | |
4379 | Aop(OP_CONCAT); | |
79072805 LW |
4380 | } |
4381 | else | |
cea2e8a9 | 4382 | return yylex(); |
79072805 LW |
4383 | } |
4384 | ||
55497cff | 4385 | case LEX_INTERPPUSH: |
bbf60fe6 | 4386 | return REPORT(sublex_push()); |
55497cff | 4387 | |
79072805 | 4388 | case LEX_INTERPSTART: |
3280af22 | 4389 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4390 | return REPORT(sublex_done()); |
607df283 | 4391 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4392 | "### Interpolated variable\n"); }); |
3280af22 NIS |
4393 | PL_expect = XTERM; |
4394 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
4395 | PL_lex_state = LEX_INTERPNORMAL; | |
4396 | if (PL_lex_dojoin) { | |
cd81e915 | 4397 | start_force(PL_curforce); |
9ded7720 | 4398 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4399 | force_next(','); |
cd81e915 | 4400 | start_force(PL_curforce); |
a0d0e21e | 4401 | force_ident("\"", '$'); |
cd81e915 | 4402 | start_force(PL_curforce); |
9ded7720 | 4403 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4404 | force_next('$'); |
cd81e915 | 4405 | start_force(PL_curforce); |
9ded7720 | 4406 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4407 | force_next('('); |
cd81e915 | 4408 | start_force(PL_curforce); |
9ded7720 | 4409 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
4410 | force_next(FUNC); |
4411 | } | |
3280af22 NIS |
4412 | if (PL_lex_starts++) { |
4413 | s = PL_bufptr; | |
5db06880 NC |
4414 | #ifdef PERL_MAD |
4415 | if (PL_madskills) { | |
cd81e915 NC |
4416 | if (PL_thistoken) |
4417 | sv_free(PL_thistoken); | |
6b29d1f5 | 4418 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4419 | } |
4420 | #endif | |
131b3ad0 DM |
4421 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4422 | if (!PL_lex_casemods && PL_lex_inpat) | |
4423 | OPERATOR(','); | |
4424 | else | |
4425 | Aop(OP_CONCAT); | |
79072805 | 4426 | } |
cea2e8a9 | 4427 | return yylex(); |
79072805 LW |
4428 | |
4429 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
4430 | if (intuit_more(PL_bufptr)) { |
4431 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
4432 | break; |
4433 | } | |
4434 | /* FALL THROUGH */ | |
4435 | ||
4436 | case LEX_INTERPEND: | |
3280af22 NIS |
4437 | if (PL_lex_dojoin) { |
4438 | PL_lex_dojoin = FALSE; | |
4439 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4440 | #ifdef PERL_MAD |
4441 | if (PL_madskills) { | |
cd81e915 NC |
4442 | if (PL_thistoken) |
4443 | sv_free(PL_thistoken); | |
6b29d1f5 | 4444 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4445 | } |
4446 | #endif | |
bbf60fe6 | 4447 | return REPORT(')'); |
79072805 | 4448 | } |
43a16006 | 4449 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 4450 | && SvEVALED(PL_lex_repl)) |
43a16006 | 4451 | { |
e9fa98b2 | 4452 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 4453 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 4454 | PL_lex_repl = NULL; |
e9fa98b2 | 4455 | } |
79072805 LW |
4456 | /* FALLTHROUGH */ |
4457 | case LEX_INTERPCONCAT: | |
4458 | #ifdef DEBUGGING | |
3280af22 | 4459 | if (PL_lex_brackets) |
cea2e8a9 | 4460 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 4461 | #endif |
3280af22 | 4462 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4463 | return REPORT(sublex_done()); |
79072805 | 4464 | |
3280af22 NIS |
4465 | if (SvIVX(PL_linestr) == '\'') { |
4466 | SV *sv = newSVsv(PL_linestr); | |
4467 | if (!PL_lex_inpat) | |
76e3520e | 4468 | sv = tokeq(sv); |
3280af22 | 4469 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 4470 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 4471 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 4472 | s = PL_bufend; |
79072805 LW |
4473 | } |
4474 | else { | |
3280af22 | 4475 | s = scan_const(PL_bufptr); |
79072805 | 4476 | if (*s == '\\') |
3280af22 | 4477 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 4478 | else |
3280af22 | 4479 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
4480 | } |
4481 | ||
3280af22 | 4482 | if (s != PL_bufptr) { |
cd81e915 | 4483 | start_force(PL_curforce); |
5db06880 NC |
4484 | if (PL_madskills) { |
4485 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
4486 | } | |
6154021b | 4487 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 4488 | PL_expect = XTERM; |
79072805 | 4489 | force_next(THING); |
131b3ad0 | 4490 | if (PL_lex_starts++) { |
5db06880 NC |
4491 | #ifdef PERL_MAD |
4492 | if (PL_madskills) { | |
cd81e915 NC |
4493 | if (PL_thistoken) |
4494 | sv_free(PL_thistoken); | |
6b29d1f5 | 4495 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4496 | } |
4497 | #endif | |
131b3ad0 DM |
4498 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4499 | if (!PL_lex_casemods && PL_lex_inpat) | |
4500 | OPERATOR(','); | |
4501 | else | |
4502 | Aop(OP_CONCAT); | |
4503 | } | |
79072805 | 4504 | else { |
3280af22 | 4505 | PL_bufptr = s; |
cea2e8a9 | 4506 | return yylex(); |
79072805 LW |
4507 | } |
4508 | } | |
4509 | ||
cea2e8a9 | 4510 | return yylex(); |
a0d0e21e | 4511 | case LEX_FORMLINE: |
3280af22 NIS |
4512 | PL_lex_state = LEX_NORMAL; |
4513 | s = scan_formline(PL_bufptr); | |
4514 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
4515 | goto rightbracket; |
4516 | OPERATOR(';'); | |
79072805 LW |
4517 | } |
4518 | ||
3280af22 NIS |
4519 | s = PL_bufptr; |
4520 | PL_oldoldbufptr = PL_oldbufptr; | |
4521 | PL_oldbufptr = s; | |
463ee0b2 LW |
4522 | |
4523 | retry: | |
5db06880 | 4524 | #ifdef PERL_MAD |
cd81e915 NC |
4525 | if (PL_thistoken) { |
4526 | sv_free(PL_thistoken); | |
4527 | PL_thistoken = 0; | |
5db06880 | 4528 | } |
cd81e915 | 4529 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 4530 | #endif |
378cc40b LW |
4531 | switch (*s) { |
4532 | default: | |
7e2040f0 | 4533 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 4534 | goto keylookup; |
b1fc3636 CJ |
4535 | { |
4536 | unsigned char c = *s; | |
4537 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); | |
4538 | if (len > UNRECOGNIZED_PRECEDE_COUNT) { | |
4539 | d = UTF ? (char *) Perl_utf8_hop(aTHX_ (U8 *) s, -UNRECOGNIZED_PRECEDE_COUNT) : s - UNRECOGNIZED_PRECEDE_COUNT; | |
4540 | } else { | |
4541 | d = PL_linestart; | |
4542 | } | |
4543 | *s = '\0'; | |
4544 | Perl_croak(aTHX_ "Unrecognized character \\x%02X; marked by <-- HERE after %s<-- HERE near column %d", c, d, (int) len + 1); | |
4545 | } | |
e929a76b LW |
4546 | case 4: |
4547 | case 26: | |
4548 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 4549 | case 0: |
5db06880 NC |
4550 | #ifdef PERL_MAD |
4551 | if (PL_madskills) | |
cd81e915 | 4552 | PL_faketokens = 0; |
5db06880 | 4553 | #endif |
3280af22 NIS |
4554 | if (!PL_rsfp) { |
4555 | PL_last_uni = 0; | |
4556 | PL_last_lop = 0; | |
c5ee2135 | 4557 | if (PL_lex_brackets) { |
10edeb5d JH |
4558 | yyerror((const char *) |
4559 | (PL_lex_formbrack | |
4560 | ? "Format not terminated" | |
4561 | : "Missing right curly or square bracket")); | |
c5ee2135 | 4562 | } |
4e553d73 | 4563 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 4564 | "### Tokener got EOF\n"); |
5f80b19c | 4565 | } ); |
79072805 | 4566 | TOKEN(0); |
463ee0b2 | 4567 | } |
3280af22 | 4568 | if (s++ < PL_bufend) |
a687059c | 4569 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
4570 | PL_last_uni = 0; |
4571 | PL_last_lop = 0; | |
4572 | if (!PL_in_eval && !PL_preambled) { | |
4573 | PL_preambled = TRUE; | |
5db06880 NC |
4574 | #ifdef PERL_MAD |
4575 | if (PL_madskills) | |
cd81e915 | 4576 | PL_faketokens = 1; |
5db06880 | 4577 | #endif |
5ab7ff98 NC |
4578 | if (PL_perldb) { |
4579 | /* Generate a string of Perl code to load the debugger. | |
4580 | * If PERL5DB is set, it will return the contents of that, | |
4581 | * otherwise a compile-time require of perl5db.pl. */ | |
4582 | ||
4583 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
4584 | ||
4585 | if (pdb) { | |
4586 | sv_setpv(PL_linestr, pdb); | |
4587 | sv_catpvs(PL_linestr,";"); | |
4588 | } else { | |
4589 | SETERRNO(0,SS_NORMAL); | |
4590 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
4591 | } | |
4592 | } else | |
4593 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
4594 | if (PL_preambleav) { |
4595 | SV **svp = AvARRAY(PL_preambleav); | |
4596 | SV **const end = svp + AvFILLp(PL_preambleav); | |
4597 | while(svp <= end) { | |
4598 | sv_catsv(PL_linestr, *svp); | |
4599 | ++svp; | |
396482e1 | 4600 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 4601 | } |
daba3364 | 4602 | sv_free(MUTABLE_SV(PL_preambleav)); |
3280af22 | 4603 | PL_preambleav = NULL; |
91b7def8 | 4604 | } |
9f639728 FR |
4605 | if (PL_minus_E) |
4606 | sv_catpvs(PL_linestr, | |
4607 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
3280af22 | 4608 | if (PL_minus_n || PL_minus_p) { |
f0e67a1d | 4609 | sv_catpvs(PL_linestr, "LINE: while (<>) {"/*}*/); |
3280af22 | 4610 | if (PL_minus_l) |
396482e1 | 4611 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 4612 | if (PL_minus_a) { |
3280af22 | 4613 | if (PL_minus_F) { |
3792a11b NC |
4614 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
4615 | || *PL_splitstr == '"') | |
3280af22 | 4616 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 4617 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 4618 | else { |
c8ef6a4b NC |
4619 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
4620 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 4621 | const char *splits = PL_splitstr; |
91d456ae | 4622 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
4623 | do { |
4624 | /* Need to \ \s */ | |
dd374669 AL |
4625 | if (*splits == '\\') |
4626 | sv_catpvn(PL_linestr, splits, 1); | |
4627 | sv_catpvn(PL_linestr, splits, 1); | |
4628 | } while (*splits++); | |
48c4c863 NC |
4629 | /* This loop will embed the trailing NUL of |
4630 | PL_linestr as the last thing it does before | |
4631 | terminating. */ | |
396482e1 | 4632 | sv_catpvs(PL_linestr, ");"); |
54310121 | 4633 | } |
2304df62 AD |
4634 | } |
4635 | else | |
396482e1 | 4636 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 4637 | } |
79072805 | 4638 | } |
396482e1 | 4639 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
4640 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4641 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4642 | PL_last_lop = PL_last_uni = NULL; |
65269a95 | 4643 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 4644 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 4645 | goto retry; |
a687059c | 4646 | } |
e929a76b | 4647 | do { |
580561a3 Z |
4648 | fake_eof = 0; |
4649 | bof = PL_rsfp ? TRUE : FALSE; | |
f0e67a1d | 4650 | if (0) { |
7e28d3af | 4651 | fake_eof: |
f0e67a1d Z |
4652 | fake_eof = LEX_FAKE_EOF; |
4653 | } | |
4654 | PL_bufptr = PL_bufend; | |
17cc9359 | 4655 | CopLINE_inc(PL_curcop); |
f0e67a1d | 4656 | if (!lex_next_chunk(fake_eof)) { |
17cc9359 | 4657 | CopLINE_dec(PL_curcop); |
f0e67a1d Z |
4658 | s = PL_bufptr; |
4659 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
4660 | } | |
17cc9359 | 4661 | CopLINE_dec(PL_curcop); |
5db06880 | 4662 | #ifdef PERL_MAD |
f0e67a1d | 4663 | if (!PL_rsfp) |
cd81e915 | 4664 | PL_realtokenstart = -1; |
5db06880 | 4665 | #endif |
f0e67a1d | 4666 | s = PL_bufptr; |
7aa207d6 JH |
4667 | /* If it looks like the start of a BOM or raw UTF-16, |
4668 | * check if it in fact is. */ | |
580561a3 | 4669 | if (bof && PL_rsfp && |
7aa207d6 JH |
4670 | (*s == 0 || |
4671 | *(U8*)s == 0xEF || | |
4672 | *(U8*)s >= 0xFE || | |
4673 | s[1] == 0)) { | |
eb160463 | 4674 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 4675 | if (bof) { |
3280af22 | 4676 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 4677 | s = swallow_bom((U8*)s); |
e929a76b | 4678 | } |
378cc40b | 4679 | } |
3280af22 | 4680 | if (PL_doextract) { |
a0d0e21e | 4681 | /* Incest with pod. */ |
5db06880 NC |
4682 | #ifdef PERL_MAD |
4683 | if (PL_madskills) | |
cd81e915 | 4684 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 4685 | #endif |
01a57ef7 | 4686 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
76f68e9b | 4687 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4688 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4689 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4690 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4691 | PL_doextract = FALSE; |
a0d0e21e | 4692 | } |
4e553d73 | 4693 | } |
85613cab Z |
4694 | if (PL_rsfp) |
4695 | incline(s); | |
3280af22 NIS |
4696 | } while (PL_doextract); |
4697 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3280af22 | 4698 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 4699 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 4700 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 4701 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 4702 | s++; |
a0d0e21e | 4703 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 4704 | s++; |
5db06880 NC |
4705 | #ifdef PERL_MAD |
4706 | if (PL_madskills) | |
cd81e915 | 4707 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 4708 | #endif |
bd61b366 | 4709 | d = NULL; |
3280af22 | 4710 | if (!PL_in_eval) { |
44a8e56a | 4711 | if (*s == '#' && *(s+1) == '!') |
4712 | d = s + 2; | |
4713 | #ifdef ALTERNATE_SHEBANG | |
4714 | else { | |
bfed75c6 | 4715 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 4716 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
4717 | d = s + (sizeof(as) - 1); | |
4718 | } | |
4719 | #endif /* ALTERNATE_SHEBANG */ | |
4720 | } | |
4721 | if (d) { | |
b8378b72 | 4722 | char *ipath; |
774d564b | 4723 | char *ipathend; |
b8378b72 | 4724 | |
774d564b | 4725 | while (isSPACE(*d)) |
b8378b72 CS |
4726 | d++; |
4727 | ipath = d; | |
774d564b | 4728 | while (*d && !isSPACE(*d)) |
4729 | d++; | |
4730 | ipathend = d; | |
4731 | ||
4732 | #ifdef ARG_ZERO_IS_SCRIPT | |
4733 | if (ipathend > ipath) { | |
4734 | /* | |
4735 | * HP-UX (at least) sets argv[0] to the script name, | |
4736 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
4737 | * at least, set argv[0] to the basename of the Perl | |
4738 | * interpreter. So, having found "#!", we'll set it right. | |
4739 | */ | |
fafc274c NC |
4740 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
4741 | SVt_PV)); /* $^X */ | |
774d564b | 4742 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 4743 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 4744 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 4745 | SvSETMAGIC(x); |
4746 | } | |
556c1dec JH |
4747 | else { |
4748 | STRLEN blen; | |
4749 | STRLEN llen; | |
cfd0369c | 4750 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 4751 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
4752 | if (llen < blen) { |
4753 | bstart += blen - llen; | |
4754 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
4755 | sv_setpvn(x, ipath, ipathend - ipath); | |
4756 | SvSETMAGIC(x); | |
4757 | } | |
4758 | } | |
4759 | } | |
774d564b | 4760 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 4761 | } |
774d564b | 4762 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
4763 | |
4764 | /* | |
4765 | * Look for options. | |
4766 | */ | |
748a9306 | 4767 | d = instr(s,"perl -"); |
84e30d1a | 4768 | if (!d) { |
748a9306 | 4769 | d = instr(s,"perl"); |
84e30d1a GS |
4770 | #if defined(DOSISH) |
4771 | /* avoid getting into infinite loops when shebang | |
4772 | * line contains "Perl" rather than "perl" */ | |
4773 | if (!d) { | |
4774 | for (d = ipathend-4; d >= ipath; --d) { | |
4775 | if ((*d == 'p' || *d == 'P') | |
4776 | && !ibcmp(d, "perl", 4)) | |
4777 | { | |
4778 | break; | |
4779 | } | |
4780 | } | |
4781 | if (d < ipath) | |
bd61b366 | 4782 | d = NULL; |
84e30d1a GS |
4783 | } |
4784 | #endif | |
4785 | } | |
44a8e56a | 4786 | #ifdef ALTERNATE_SHEBANG |
4787 | /* | |
4788 | * If the ALTERNATE_SHEBANG on this system starts with a | |
4789 | * character that can be part of a Perl expression, then if | |
4790 | * we see it but not "perl", we're probably looking at the | |
4791 | * start of Perl code, not a request to hand off to some | |
4792 | * other interpreter. Similarly, if "perl" is there, but | |
4793 | * not in the first 'word' of the line, we assume the line | |
4794 | * contains the start of the Perl program. | |
44a8e56a | 4795 | */ |
4796 | if (d && *s != '#') { | |
f54cb97a | 4797 | const char *c = ipath; |
44a8e56a | 4798 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
4799 | c++; | |
4800 | if (c < d) | |
bd61b366 | 4801 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 4802 | else |
4803 | *s = '#'; /* Don't try to parse shebang line */ | |
4804 | } | |
774d564b | 4805 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 4806 | if (!d && |
44a8e56a | 4807 | *s == '#' && |
774d564b | 4808 | ipathend > ipath && |
3280af22 | 4809 | !PL_minus_c && |
748a9306 | 4810 | !instr(s,"indir") && |
3280af22 | 4811 | instr(PL_origargv[0],"perl")) |
748a9306 | 4812 | { |
27da23d5 | 4813 | dVAR; |
9f68db38 | 4814 | char **newargv; |
9f68db38 | 4815 | |
774d564b | 4816 | *ipathend = '\0'; |
4817 | s = ipathend + 1; | |
3280af22 | 4818 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 4819 | s++; |
3280af22 | 4820 | if (s < PL_bufend) { |
d85f917e | 4821 | Newx(newargv,PL_origargc+3,char*); |
9f68db38 | 4822 | newargv[1] = s; |
3280af22 | 4823 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
4824 | s++; |
4825 | *s = '\0'; | |
3280af22 | 4826 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
4827 | } |
4828 | else | |
3280af22 | 4829 | newargv = PL_origargv; |
774d564b | 4830 | newargv[0] = ipath; |
b35112e7 | 4831 | PERL_FPU_PRE_EXEC |
b4748376 | 4832 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 4833 | PERL_FPU_POST_EXEC |
cea2e8a9 | 4834 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 4835 | } |
748a9306 | 4836 | if (d) { |
c35e046a AL |
4837 | while (*d && !isSPACE(*d)) |
4838 | d++; | |
4839 | while (SPACE_OR_TAB(*d)) | |
4840 | d++; | |
748a9306 LW |
4841 | |
4842 | if (*d++ == '-') { | |
f54cb97a | 4843 | const bool switches_done = PL_doswitches; |
fb993905 GA |
4844 | const U32 oldpdb = PL_perldb; |
4845 | const bool oldn = PL_minus_n; | |
4846 | const bool oldp = PL_minus_p; | |
c7030b81 | 4847 | const char *d1 = d; |
fb993905 | 4848 | |
8cc95fdb | 4849 | do { |
4ba71d51 FC |
4850 | bool baduni = FALSE; |
4851 | if (*d1 == 'C') { | |
bd0ab00d NC |
4852 | const char *d2 = d1 + 1; |
4853 | if (parse_unicode_opts((const char **)&d2) | |
4854 | != PL_unicode) | |
4855 | baduni = TRUE; | |
4ba71d51 FC |
4856 | } |
4857 | if (baduni || *d1 == 'M' || *d1 == 'm') { | |
c7030b81 NC |
4858 | const char * const m = d1; |
4859 | while (*d1 && !isSPACE(*d1)) | |
4860 | d1++; | |
cea2e8a9 | 4861 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 4862 | (int)(d1 - m), m); |
8cc95fdb | 4863 | } |
c7030b81 NC |
4864 | d1 = moreswitches(d1); |
4865 | } while (d1); | |
f0b2cf55 YST |
4866 | if (PL_doswitches && !switches_done) { |
4867 | int argc = PL_origargc; | |
4868 | char **argv = PL_origargv; | |
4869 | do { | |
4870 | argc--,argv++; | |
4871 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
4872 | init_argv_symbols(argc,argv); | |
4873 | } | |
65269a95 | 4874 | if (((PERLDB_LINE || PERLDB_SAVESRC) && !oldpdb) || |
155aba94 | 4875 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) |
b084f20b | 4876 | /* if we have already added "LINE: while (<>) {", |
4877 | we must not do it again */ | |
748a9306 | 4878 | { |
76f68e9b | 4879 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4880 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4881 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4882 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4883 | PL_preambled = FALSE; |
65269a95 | 4884 | if (PERLDB_LINE || PERLDB_SAVESRC) |
3280af22 | 4885 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
4886 | goto retry; |
4887 | } | |
a0d0e21e | 4888 | } |
79072805 | 4889 | } |
9f68db38 | 4890 | } |
79072805 | 4891 | } |
3280af22 NIS |
4892 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4893 | PL_bufptr = s; | |
4894 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4895 | return yylex(); |
ae986130 | 4896 | } |
378cc40b | 4897 | goto retry; |
4fdae800 | 4898 | case '\r': |
6a27c188 | 4899 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 4900 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 4901 | Perl_croak(aTHX_ |
cc507455 | 4902 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 4903 | #endif |
4fdae800 | 4904 | case ' ': case '\t': case '\f': case 013: |
5db06880 | 4905 | #ifdef PERL_MAD |
cd81e915 | 4906 | PL_realtokenstart = -1; |
ac372eb8 RD |
4907 | if (!PL_thiswhite) |
4908 | PL_thiswhite = newSVpvs(""); | |
4909 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 4910 | #endif |
ac372eb8 | 4911 | s++; |
378cc40b | 4912 | goto retry; |
378cc40b | 4913 | case '#': |
e929a76b | 4914 | case '\n': |
5db06880 | 4915 | #ifdef PERL_MAD |
cd81e915 | 4916 | PL_realtokenstart = -1; |
5db06880 | 4917 | if (PL_madskills) |
cd81e915 | 4918 | PL_faketokens = 0; |
5db06880 | 4919 | #endif |
3280af22 | 4920 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
4921 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
4922 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
4923 | CopLINE_dec(PL_curcop); | |
4924 | incline(s); | |
4925 | } | |
5db06880 NC |
4926 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
4927 | s = SKIPSPACE0(s); | |
4928 | if (!PL_in_eval || PL_rsfp) | |
4929 | incline(s); | |
4930 | } | |
4931 | else { | |
4932 | d = s; | |
4933 | while (d < PL_bufend && *d != '\n') | |
4934 | d++; | |
4935 | if (d < PL_bufend) | |
4936 | d++; | |
4937 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4938 | Perl_croak(aTHX_ "panic: input overflow"); | |
4939 | #ifdef PERL_MAD | |
4940 | if (PL_madskills) | |
cd81e915 | 4941 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
4942 | #endif |
4943 | s = d; | |
4944 | incline(s); | |
4945 | } | |
3280af22 NIS |
4946 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4947 | PL_bufptr = s; | |
4948 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4949 | return yylex(); |
a687059c | 4950 | } |
378cc40b | 4951 | } |
a687059c | 4952 | else { |
5db06880 NC |
4953 | #ifdef PERL_MAD |
4954 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
4955 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 4956 | PL_faketokens = 0; |
5db06880 NC |
4957 | s = SKIPSPACE0(s); |
4958 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4959 | } | |
4960 | s = SKIPSPACE0(s); | |
4961 | } | |
4962 | else { | |
4963 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4964 | d = s; | |
4965 | while (d < PL_bufend && *d != '\n') | |
4966 | d++; | |
4967 | if (d < PL_bufend) | |
4968 | d++; | |
4969 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4970 | Perl_croak(aTHX_ "panic: input overflow"); | |
4971 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4972 | if (!PL_thiswhite) |
6b29d1f5 | 4973 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4974 | if (CopLINE(PL_curcop) == 1) { |
76f68e9b | 4975 | sv_setpvs(PL_thiswhite, ""); |
cd81e915 | 4976 | PL_faketokens = 0; |
5db06880 | 4977 | } |
cd81e915 | 4978 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4979 | } |
4980 | s = d; | |
4981 | /* } | |
4982 | *s = '\0'; | |
4983 | PL_bufend = s; */ | |
4984 | } | |
4985 | #else | |
378cc40b | 4986 | *s = '\0'; |
3280af22 | 4987 | PL_bufend = s; |
5db06880 | 4988 | #endif |
a687059c | 4989 | } |
378cc40b LW |
4990 | goto retry; |
4991 | case '-': | |
79072805 | 4992 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4993 | I32 ftst = 0; |
90771dc0 | 4994 | char tmp; |
e5edeb50 | 4995 | |
378cc40b | 4996 | s++; |
3280af22 | 4997 | PL_bufptr = s; |
748a9306 LW |
4998 | tmp = *s++; |
4999 | ||
bf4acbe4 | 5000 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
5001 | s++; |
5002 | ||
5003 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 5004 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 5005 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
5006 | OPERATOR('-'); /* unary minus */ |
5007 | } | |
3280af22 | 5008 | PL_last_uni = PL_oldbufptr; |
748a9306 | 5009 | switch (tmp) { |
e5edeb50 JH |
5010 | case 'r': ftst = OP_FTEREAD; break; |
5011 | case 'w': ftst = OP_FTEWRITE; break; | |
5012 | case 'x': ftst = OP_FTEEXEC; break; | |
5013 | case 'o': ftst = OP_FTEOWNED; break; | |
5014 | case 'R': ftst = OP_FTRREAD; break; | |
5015 | case 'W': ftst = OP_FTRWRITE; break; | |
5016 | case 'X': ftst = OP_FTREXEC; break; | |
5017 | case 'O': ftst = OP_FTROWNED; break; | |
5018 | case 'e': ftst = OP_FTIS; break; | |
5019 | case 'z': ftst = OP_FTZERO; break; | |
5020 | case 's': ftst = OP_FTSIZE; break; | |
5021 | case 'f': ftst = OP_FTFILE; break; | |
5022 | case 'd': ftst = OP_FTDIR; break; | |
5023 | case 'l': ftst = OP_FTLINK; break; | |
5024 | case 'p': ftst = OP_FTPIPE; break; | |
5025 | case 'S': ftst = OP_FTSOCK; break; | |
5026 | case 'u': ftst = OP_FTSUID; break; | |
5027 | case 'g': ftst = OP_FTSGID; break; | |
5028 | case 'k': ftst = OP_FTSVTX; break; | |
5029 | case 'b': ftst = OP_FTBLK; break; | |
5030 | case 'c': ftst = OP_FTCHR; break; | |
5031 | case 't': ftst = OP_FTTTY; break; | |
5032 | case 'T': ftst = OP_FTTEXT; break; | |
5033 | case 'B': ftst = OP_FTBINARY; break; | |
5034 | case 'M': case 'A': case 'C': | |
fafc274c | 5035 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
5036 | switch (tmp) { |
5037 | case 'M': ftst = OP_FTMTIME; break; | |
5038 | case 'A': ftst = OP_FTATIME; break; | |
5039 | case 'C': ftst = OP_FTCTIME; break; | |
5040 | default: break; | |
5041 | } | |
5042 | break; | |
378cc40b | 5043 | default: |
378cc40b LW |
5044 | break; |
5045 | } | |
e5edeb50 | 5046 | if (ftst) { |
eb160463 | 5047 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 5048 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 5049 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 5050 | } ); |
e5edeb50 JH |
5051 | FTST(ftst); |
5052 | } | |
5053 | else { | |
5054 | /* Assume it was a minus followed by a one-letter named | |
5055 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 5056 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 5057 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 5058 | (int) tmp); |
5f80b19c | 5059 | } ); |
3cf7b4c4 | 5060 | s = --PL_bufptr; |
e5edeb50 | 5061 | } |
378cc40b | 5062 | } |
90771dc0 NC |
5063 | { |
5064 | const char tmp = *s++; | |
5065 | if (*s == tmp) { | |
5066 | s++; | |
5067 | if (PL_expect == XOPERATOR) | |
5068 | TERM(POSTDEC); | |
5069 | else | |
5070 | OPERATOR(PREDEC); | |
5071 | } | |
5072 | else if (*s == '>') { | |
5073 | s++; | |
29595ff2 | 5074 | s = SKIPSPACE1(s); |
90771dc0 NC |
5075 | if (isIDFIRST_lazy_if(s,UTF)) { |
5076 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
5077 | TOKEN(ARROW); | |
5078 | } | |
5079 | else if (*s == '$') | |
5080 | OPERATOR(ARROW); | |
5081 | else | |
5082 | TERM(ARROW); | |
5083 | } | |
3280af22 | 5084 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
5085 | Aop(OP_SUBTRACT); |
5086 | else { | |
5087 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
5088 | check_uni(); | |
5089 | OPERATOR('-'); /* unary minus */ | |
79072805 | 5090 | } |
2f3197b3 | 5091 | } |
79072805 | 5092 | |
378cc40b | 5093 | case '+': |
90771dc0 NC |
5094 | { |
5095 | const char tmp = *s++; | |
5096 | if (*s == tmp) { | |
5097 | s++; | |
5098 | if (PL_expect == XOPERATOR) | |
5099 | TERM(POSTINC); | |
5100 | else | |
5101 | OPERATOR(PREINC); | |
5102 | } | |
3280af22 | 5103 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
5104 | Aop(OP_ADD); |
5105 | else { | |
5106 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
5107 | check_uni(); | |
5108 | OPERATOR('+'); | |
5109 | } | |
2f3197b3 | 5110 | } |
a687059c | 5111 | |
378cc40b | 5112 | case '*': |
3280af22 NIS |
5113 | if (PL_expect != XOPERATOR) { |
5114 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
5115 | PL_expect = XOPERATOR; | |
5116 | force_ident(PL_tokenbuf, '*'); | |
5117 | if (!*PL_tokenbuf) | |
a0d0e21e | 5118 | PREREF('*'); |
79072805 | 5119 | TERM('*'); |
a687059c | 5120 | } |
79072805 LW |
5121 | s++; |
5122 | if (*s == '*') { | |
a687059c | 5123 | s++; |
79072805 | 5124 | PWop(OP_POW); |
a687059c | 5125 | } |
79072805 LW |
5126 | Mop(OP_MULTIPLY); |
5127 | ||
378cc40b | 5128 | case '%': |
3280af22 | 5129 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 5130 | ++s; |
5131 | Mop(OP_MODULO); | |
a687059c | 5132 | } |
3280af22 | 5133 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
5134 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
5135 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 5136 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 5137 | PREREF('%'); |
a687059c | 5138 | } |
3280af22 | 5139 | PL_pending_ident = '%'; |
bbce6d69 | 5140 | TERM('%'); |
a687059c | 5141 | |
378cc40b | 5142 | case '^': |
79072805 | 5143 | s++; |
a0d0e21e | 5144 | BOop(OP_BIT_XOR); |
79072805 | 5145 | case '[': |
3280af22 | 5146 | PL_lex_brackets++; |
df3467db IG |
5147 | { |
5148 | const char tmp = *s++; | |
5149 | OPERATOR(tmp); | |
5150 | } | |
378cc40b | 5151 | case '~': |
0d863452 | 5152 | if (s[1] == '~' |
3e7dd34d | 5153 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
5154 | { |
5155 | s += 2; | |
5156 | Eop(OP_SMARTMATCH); | |
5157 | } | |
378cc40b | 5158 | case ',': |
90771dc0 NC |
5159 | { |
5160 | const char tmp = *s++; | |
5161 | OPERATOR(tmp); | |
5162 | } | |
a0d0e21e LW |
5163 | case ':': |
5164 | if (s[1] == ':') { | |
5165 | len = 0; | |
0bfa2a8a | 5166 | goto just_a_word_zero_gv; |
a0d0e21e LW |
5167 | } |
5168 | s++; | |
09bef843 SB |
5169 | switch (PL_expect) { |
5170 | OP *attrs; | |
5db06880 NC |
5171 | #ifdef PERL_MAD |
5172 | I32 stuffstart; | |
5173 | #endif | |
09bef843 SB |
5174 | case XOPERATOR: |
5175 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
5176 | break; | |
5177 | PL_bufptr = s; /* update in case we back off */ | |
d83f38d8 NC |
5178 | if (*s == '=') { |
5179 | deprecate(":= for an empty attribute list"); | |
5180 | } | |
09bef843 SB |
5181 | goto grabattrs; |
5182 | case XATTRBLOCK: | |
5183 | PL_expect = XBLOCK; | |
5184 | goto grabattrs; | |
5185 | case XATTRTERM: | |
5186 | PL_expect = XTERMBLOCK; | |
5187 | grabattrs: | |
5db06880 NC |
5188 | #ifdef PERL_MAD |
5189 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
5190 | #endif | |
29595ff2 | 5191 | s = PEEKSPACE(s); |
5f66b61c | 5192 | attrs = NULL; |
7e2040f0 | 5193 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 5194 | I32 tmp; |
5cc237b8 | 5195 | SV *sv; |
09bef843 | 5196 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5197 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
5198 | if (tmp < 0) tmp = -tmp; |
5199 | switch (tmp) { | |
5200 | case KEY_or: | |
5201 | case KEY_and: | |
5202 | case KEY_for: | |
11baf631 | 5203 | case KEY_foreach: |
f9829d6b GS |
5204 | case KEY_unless: |
5205 | case KEY_if: | |
5206 | case KEY_while: | |
5207 | case KEY_until: | |
5208 | goto got_attrs; | |
5209 | default: | |
5210 | break; | |
5211 | } | |
5212 | } | |
5cc237b8 | 5213 | sv = newSVpvn(s, len); |
09bef843 SB |
5214 | if (*d == '(') { |
5215 | d = scan_str(d,TRUE,TRUE); | |
5216 | if (!d) { | |
09bef843 SB |
5217 | /* MUST advance bufptr here to avoid bogus |
5218 | "at end of line" context messages from yyerror(). | |
5219 | */ | |
5220 | PL_bufptr = s + len; | |
5221 | yyerror("Unterminated attribute parameter in attribute list"); | |
5222 | if (attrs) | |
5223 | op_free(attrs); | |
5cc237b8 | 5224 | sv_free(sv); |
bbf60fe6 | 5225 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
5226 | } |
5227 | } | |
5228 | if (PL_lex_stuff) { | |
09bef843 SB |
5229 | sv_catsv(sv, PL_lex_stuff); |
5230 | attrs = append_elem(OP_LIST, attrs, | |
5231 | newSVOP(OP_CONST, 0, sv)); | |
5232 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 5233 | PL_lex_stuff = NULL; |
09bef843 SB |
5234 | } |
5235 | else { | |
5cc237b8 BS |
5236 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
5237 | sv_free(sv); | |
1108974d | 5238 | if (PL_in_my == KEY_our) { |
df9a6019 | 5239 | deprecate(":unique"); |
1108974d | 5240 | } |
bfed75c6 | 5241 | else |
371fce9b DM |
5242 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
5243 | } | |
5244 | ||
d3cea301 SB |
5245 | /* NOTE: any CV attrs applied here need to be part of |
5246 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
5247 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
5248 | sv_free(sv); | |
78f9721b | 5249 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
5250 | } |
5251 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
5252 | sv_free(sv); | |
8e5dadda | 5253 | deprecate(":locked"); |
5cc237b8 BS |
5254 | } |
5255 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
5256 | sv_free(sv); | |
78f9721b | 5257 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 5258 | } |
78f9721b SM |
5259 | /* After we've set the flags, it could be argued that |
5260 | we don't need to do the attributes.pm-based setting | |
5261 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
5262 | flags. To experiment with that, uncomment the |
5263 | following "else". (Note that's already been | |
5264 | uncommented. That keeps the above-applied built-in | |
5265 | attributes from being intercepted (and possibly | |
5266 | rejected) by a package's attribute routines, but is | |
5267 | justified by the performance win for the common case | |
5268 | of applying only built-in attributes.) */ | |
0256094b | 5269 | else |
78f9721b SM |
5270 | attrs = append_elem(OP_LIST, attrs, |
5271 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 5272 | sv)); |
09bef843 | 5273 | } |
29595ff2 | 5274 | s = PEEKSPACE(d); |
0120eecf | 5275 | if (*s == ':' && s[1] != ':') |
29595ff2 | 5276 | s = PEEKSPACE(s+1); |
0120eecf GS |
5277 | else if (s == d) |
5278 | break; /* require real whitespace or :'s */ | |
29595ff2 | 5279 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 5280 | } |
90771dc0 NC |
5281 | { |
5282 | const char tmp | |
5283 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
5284 | if (*s != ';' && *s != '}' && *s != tmp | |
5285 | && (tmp != '=' || *s != ')')) { | |
5286 | const char q = ((*s == '\'') ? '"' : '\''); | |
5287 | /* If here for an expression, and parsed no attrs, back | |
5288 | off. */ | |
5289 | if (tmp == '=' && !attrs) { | |
5290 | s = PL_bufptr; | |
5291 | break; | |
5292 | } | |
5293 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
5294 | context messages from yyerror(). | |
5295 | */ | |
5296 | PL_bufptr = s; | |
10edeb5d JH |
5297 | yyerror( (const char *) |
5298 | (*s | |
5299 | ? Perl_form(aTHX_ "Invalid separator character " | |
5300 | "%c%c%c in attribute list", q, *s, q) | |
5301 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
5302 | if (attrs) |
5303 | op_free(attrs); | |
5304 | OPERATOR(':'); | |
09bef843 | 5305 | } |
09bef843 | 5306 | } |
f9829d6b | 5307 | got_attrs: |
09bef843 | 5308 | if (attrs) { |
cd81e915 | 5309 | start_force(PL_curforce); |
9ded7720 | 5310 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 5311 | CURMAD('_', PL_nextwhite); |
89122651 | 5312 | force_next(THING); |
5db06880 NC |
5313 | } |
5314 | #ifdef PERL_MAD | |
5315 | if (PL_madskills) { | |
cd81e915 | 5316 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 5317 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 5318 | } |
5db06880 | 5319 | #endif |
09bef843 SB |
5320 | TOKEN(COLONATTR); |
5321 | } | |
a0d0e21e | 5322 | OPERATOR(':'); |
8990e307 LW |
5323 | case '(': |
5324 | s++; | |
3280af22 NIS |
5325 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
5326 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 5327 | else |
3280af22 | 5328 | PL_expect = XTERM; |
29595ff2 | 5329 | s = SKIPSPACE1(s); |
a0d0e21e | 5330 | TOKEN('('); |
378cc40b | 5331 | case ';': |
f4dd75d9 | 5332 | CLINE; |
90771dc0 NC |
5333 | { |
5334 | const char tmp = *s++; | |
5335 | OPERATOR(tmp); | |
5336 | } | |
378cc40b | 5337 | case ')': |
90771dc0 NC |
5338 | { |
5339 | const char tmp = *s++; | |
29595ff2 | 5340 | s = SKIPSPACE1(s); |
90771dc0 NC |
5341 | if (*s == '{') |
5342 | PREBLOCK(tmp); | |
5343 | TERM(tmp); | |
5344 | } | |
79072805 LW |
5345 | case ']': |
5346 | s++; | |
3280af22 | 5347 | if (PL_lex_brackets <= 0) |
d98d5fff | 5348 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 5349 | else |
3280af22 NIS |
5350 | --PL_lex_brackets; |
5351 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5352 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
5353 | if (*s == '-' && s[1] == '>') |
5354 | PL_lex_state = LEX_INTERPENDMAYBE; | |
5355 | else if (*s != '[' && *s != '{') | |
3280af22 | 5356 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5357 | } |
5358 | } | |
4633a7c4 | 5359 | TERM(']'); |
79072805 LW |
5360 | case '{': |
5361 | leftbracket: | |
79072805 | 5362 | s++; |
3280af22 | 5363 | if (PL_lex_brackets > 100) { |
8edd5f42 | 5364 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 5365 | } |
3280af22 | 5366 | switch (PL_expect) { |
a0d0e21e | 5367 | case XTERM: |
3280af22 | 5368 | if (PL_lex_formbrack) { |
a0d0e21e LW |
5369 | s--; |
5370 | PRETERMBLOCK(DO); | |
5371 | } | |
3280af22 NIS |
5372 | if (PL_oldoldbufptr == PL_last_lop) |
5373 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5374 | else |
3280af22 | 5375 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 5376 | OPERATOR(HASHBRACK); |
a0d0e21e | 5377 | case XOPERATOR: |
bf4acbe4 | 5378 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 5379 | s++; |
44a8e56a | 5380 | d = s; |
3280af22 NIS |
5381 | PL_tokenbuf[0] = '\0'; |
5382 | if (d < PL_bufend && *d == '-') { | |
5383 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 5384 | d++; |
bf4acbe4 | 5385 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 5386 | d++; |
5387 | } | |
7e2040f0 | 5388 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 5389 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 5390 | FALSE, &len); |
bf4acbe4 | 5391 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
5392 | d++; |
5393 | if (*d == '}') { | |
f54cb97a | 5394 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 5395 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
5396 | if (minus) | |
5397 | force_next('-'); | |
748a9306 LW |
5398 | } |
5399 | } | |
5400 | /* FALL THROUGH */ | |
09bef843 | 5401 | case XATTRBLOCK: |
748a9306 | 5402 | case XBLOCK: |
3280af22 NIS |
5403 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
5404 | PL_expect = XSTATE; | |
a0d0e21e | 5405 | break; |
09bef843 | 5406 | case XATTRTERM: |
a0d0e21e | 5407 | case XTERMBLOCK: |
3280af22 NIS |
5408 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
5409 | PL_expect = XSTATE; | |
a0d0e21e LW |
5410 | break; |
5411 | default: { | |
f54cb97a | 5412 | const char *t; |
3280af22 NIS |
5413 | if (PL_oldoldbufptr == PL_last_lop) |
5414 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5415 | else |
3280af22 | 5416 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 5417 | s = SKIPSPACE1(s); |
8452ff4b SB |
5418 | if (*s == '}') { |
5419 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
5420 | PL_expect = XTERM; | |
5421 | /* This hack is to get the ${} in the message. */ | |
5422 | PL_bufptr = s+1; | |
5423 | yyerror("syntax error"); | |
5424 | break; | |
5425 | } | |
a0d0e21e | 5426 | OPERATOR(HASHBRACK); |
8452ff4b | 5427 | } |
b8a4b1be GS |
5428 | /* This hack serves to disambiguate a pair of curlies |
5429 | * as being a block or an anon hash. Normally, expectation | |
5430 | * determines that, but in cases where we're not in a | |
5431 | * position to expect anything in particular (like inside | |
5432 | * eval"") we have to resolve the ambiguity. This code | |
5433 | * covers the case where the first term in the curlies is a | |
5434 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 5435 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
5436 | * curly in order to force resolution as an anon hash. |
5437 | * | |
5438 | * XXX should probably propagate the outer expectation | |
5439 | * into eval"" to rely less on this hack, but that could | |
5440 | * potentially break current behavior of eval"". | |
5441 | * GSAR 97-07-21 | |
5442 | */ | |
5443 | t = s; | |
5444 | if (*s == '\'' || *s == '"' || *s == '`') { | |
5445 | /* common case: get past first string, handling escapes */ | |
3280af22 | 5446 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
5447 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
5448 | t++; | |
5449 | t++; | |
a0d0e21e | 5450 | } |
b8a4b1be | 5451 | else if (*s == 'q') { |
3280af22 | 5452 | if (++t < PL_bufend |
b8a4b1be | 5453 | && (!isALNUM(*t) |
3280af22 | 5454 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
5455 | && !isALNUM(*t)))) |
5456 | { | |
abc667d1 | 5457 | /* skip q//-like construct */ |
f54cb97a | 5458 | const char *tmps; |
b8a4b1be GS |
5459 | char open, close, term; |
5460 | I32 brackets = 1; | |
5461 | ||
3280af22 | 5462 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 5463 | t++; |
abc667d1 DM |
5464 | /* check for q => */ |
5465 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
5466 | OPERATOR(HASHBRACK); | |
5467 | } | |
b8a4b1be GS |
5468 | term = *t; |
5469 | open = term; | |
5470 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
5471 | term = tmps[5]; | |
5472 | close = term; | |
5473 | if (open == close) | |
3280af22 NIS |
5474 | for (t++; t < PL_bufend; t++) { |
5475 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 5476 | t++; |
6d07e5e9 | 5477 | else if (*t == open) |
b8a4b1be GS |
5478 | break; |
5479 | } | |
abc667d1 | 5480 | else { |
3280af22 NIS |
5481 | for (t++; t < PL_bufend; t++) { |
5482 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 5483 | t++; |
6d07e5e9 | 5484 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
5485 | break; |
5486 | else if (*t == open) | |
5487 | brackets++; | |
5488 | } | |
abc667d1 DM |
5489 | } |
5490 | t++; | |
b8a4b1be | 5491 | } |
abc667d1 DM |
5492 | else |
5493 | /* skip plain q word */ | |
5494 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
5495 | t += UTF8SKIP(t); | |
a0d0e21e | 5496 | } |
7e2040f0 | 5497 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 5498 | t += UTF8SKIP(t); |
7e2040f0 | 5499 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 5500 | t += UTF8SKIP(t); |
a0d0e21e | 5501 | } |
3280af22 | 5502 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 5503 | t++; |
b8a4b1be GS |
5504 | /* if comma follows first term, call it an anon hash */ |
5505 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 5506 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 5507 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 5508 | OPERATOR(HASHBRACK); |
3280af22 | 5509 | if (PL_expect == XREF) |
4e4e412b | 5510 | PL_expect = XTERM; |
a0d0e21e | 5511 | else { |
3280af22 NIS |
5512 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
5513 | PL_expect = XSTATE; | |
a0d0e21e | 5514 | } |
8990e307 | 5515 | } |
a0d0e21e | 5516 | break; |
463ee0b2 | 5517 | } |
6154021b | 5518 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 5519 | if (isSPACE(*s) || *s == '#') |
3280af22 | 5520 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 5521 | TOKEN('{'); |
378cc40b | 5522 | case '}': |
79072805 LW |
5523 | rightbracket: |
5524 | s++; | |
3280af22 | 5525 | if (PL_lex_brackets <= 0) |
d98d5fff | 5526 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 5527 | else |
3280af22 | 5528 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 5529 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
5530 | PL_lex_formbrack = 0; |
5531 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5532 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
5533 | if (PL_expect & XFAKEBRACK) { |
5534 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
5535 | PL_lex_state = LEX_INTERPEND; |
5536 | PL_bufptr = s; | |
5db06880 NC |
5537 | #if 0 |
5538 | if (PL_madskills) { | |
cd81e915 | 5539 | if (!PL_thiswhite) |
6b29d1f5 | 5540 | PL_thiswhite = newSVpvs(""); |
76f68e9b | 5541 | sv_catpvs(PL_thiswhite,"}"); |
5db06880 NC |
5542 | } |
5543 | #endif | |
cea2e8a9 | 5544 | return yylex(); /* ignore fake brackets */ |
79072805 | 5545 | } |
fa83b5b6 | 5546 | if (*s == '-' && s[1] == '>') |
3280af22 | 5547 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 5548 | else if (*s != '[' && *s != '{') |
3280af22 | 5549 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5550 | } |
5551 | } | |
9059aa12 LW |
5552 | if (PL_expect & XFAKEBRACK) { |
5553 | PL_expect &= XENUMMASK; | |
3280af22 | 5554 | PL_bufptr = s; |
cea2e8a9 | 5555 | return yylex(); /* ignore fake brackets */ |
748a9306 | 5556 | } |
cd81e915 | 5557 | start_force(PL_curforce); |
5db06880 NC |
5558 | if (PL_madskills) { |
5559 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 5560 | CURMAD('_', PL_thiswhite); |
5db06880 | 5561 | } |
79072805 | 5562 | force_next('}'); |
5db06880 | 5563 | #ifdef PERL_MAD |
cd81e915 | 5564 | if (!PL_thistoken) |
6b29d1f5 | 5565 | PL_thistoken = newSVpvs(""); |
5db06880 | 5566 | #endif |
79072805 | 5567 | TOKEN(';'); |
378cc40b LW |
5568 | case '&': |
5569 | s++; | |
90771dc0 | 5570 | if (*s++ == '&') |
a0d0e21e | 5571 | AOPERATOR(ANDAND); |
378cc40b | 5572 | s--; |
3280af22 | 5573 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
5574 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
5575 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 5576 | { |
57843af0 | 5577 | CopLINE_dec(PL_curcop); |
f1f66076 | 5578 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5579 | CopLINE_inc(PL_curcop); |
463ee0b2 | 5580 | } |
79072805 | 5581 | BAop(OP_BIT_AND); |
463ee0b2 | 5582 | } |
79072805 | 5583 | |
3280af22 NIS |
5584 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
5585 | if (*PL_tokenbuf) { | |
5586 | PL_expect = XOPERATOR; | |
5587 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 5588 | } |
79072805 LW |
5589 | else |
5590 | PREREF('&'); | |
6154021b | 5591 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
5592 | TERM('&'); |
5593 | ||
378cc40b LW |
5594 | case '|': |
5595 | s++; | |
90771dc0 | 5596 | if (*s++ == '|') |
a0d0e21e | 5597 | AOPERATOR(OROR); |
378cc40b | 5598 | s--; |
79072805 | 5599 | BOop(OP_BIT_OR); |
378cc40b LW |
5600 | case '=': |
5601 | s++; | |
748a9306 | 5602 | { |
90771dc0 NC |
5603 | const char tmp = *s++; |
5604 | if (tmp == '=') | |
5605 | Eop(OP_EQ); | |
5606 | if (tmp == '>') | |
5607 | OPERATOR(','); | |
5608 | if (tmp == '~') | |
5609 | PMop(OP_MATCH); | |
5610 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
5611 | && strchr("+-*/%.^&|<",tmp)) | |
5612 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5613 | "Reversed %c= operator",(int)tmp); | |
5614 | s--; | |
5615 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
5616 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
5617 | { | |
5618 | if (PL_in_eval && !PL_rsfp) { | |
5619 | d = PL_bufend; | |
5620 | while (s < d) { | |
5621 | if (*s++ == '\n') { | |
5622 | incline(s); | |
5623 | if (strnEQ(s,"=cut",4)) { | |
5624 | s = strchr(s,'\n'); | |
5625 | if (s) | |
5626 | s++; | |
5627 | else | |
5628 | s = d; | |
5629 | incline(s); | |
5630 | goto retry; | |
5631 | } | |
5632 | } | |
a5f75d66 | 5633 | } |
90771dc0 | 5634 | goto retry; |
a5f75d66 | 5635 | } |
5db06880 NC |
5636 | #ifdef PERL_MAD |
5637 | if (PL_madskills) { | |
cd81e915 | 5638 | if (!PL_thiswhite) |
6b29d1f5 | 5639 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 5640 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
5641 | PL_bufend - PL_linestart); |
5642 | } | |
5643 | #endif | |
90771dc0 NC |
5644 | s = PL_bufend; |
5645 | PL_doextract = TRUE; | |
5646 | goto retry; | |
a5f75d66 | 5647 | } |
a0d0e21e | 5648 | } |
3280af22 | 5649 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 5650 | const char *t = s; |
51882d45 | 5651 | #ifdef PERL_STRICT_CR |
c35e046a | 5652 | while (SPACE_OR_TAB(*t)) |
51882d45 | 5653 | #else |
c35e046a | 5654 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 5655 | #endif |
c35e046a | 5656 | t++; |
a0d0e21e LW |
5657 | if (*t == '\n' || *t == '#') { |
5658 | s--; | |
3280af22 | 5659 | PL_expect = XBLOCK; |
a0d0e21e LW |
5660 | goto leftbracket; |
5661 | } | |
79072805 | 5662 | } |
6154021b | 5663 | pl_yylval.ival = 0; |
a0d0e21e | 5664 | OPERATOR(ASSIGNOP); |
378cc40b LW |
5665 | case '!': |
5666 | s++; | |
90771dc0 NC |
5667 | { |
5668 | const char tmp = *s++; | |
5669 | if (tmp == '=') { | |
5670 | /* was this !=~ where !~ was meant? | |
5671 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
5672 | ||
5673 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
5674 | const char *t = s+1; | |
5675 | ||
5676 | while (t < PL_bufend && isSPACE(*t)) | |
5677 | ++t; | |
5678 | ||
5679 | if (*t == '/' || *t == '?' || | |
5680 | ((*t == 'm' || *t == 's' || *t == 'y') | |
5681 | && !isALNUM(t[1])) || | |
5682 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
5683 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5684 | "!=~ should be !~"); | |
5685 | } | |
5686 | Eop(OP_NE); | |
5687 | } | |
5688 | if (tmp == '~') | |
5689 | PMop(OP_NOT); | |
5690 | } | |
378cc40b LW |
5691 | s--; |
5692 | OPERATOR('!'); | |
5693 | case '<': | |
3280af22 | 5694 | if (PL_expect != XOPERATOR) { |
93a17b20 | 5695 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 5696 | check_uni(); |
79072805 LW |
5697 | if (s[1] == '<') |
5698 | s = scan_heredoc(s); | |
5699 | else | |
5700 | s = scan_inputsymbol(s); | |
5701 | TERM(sublex_start()); | |
378cc40b LW |
5702 | } |
5703 | s++; | |
90771dc0 NC |
5704 | { |
5705 | char tmp = *s++; | |
5706 | if (tmp == '<') | |
5707 | SHop(OP_LEFT_SHIFT); | |
5708 | if (tmp == '=') { | |
5709 | tmp = *s++; | |
5710 | if (tmp == '>') | |
5711 | Eop(OP_NCMP); | |
5712 | s--; | |
5713 | Rop(OP_LE); | |
5714 | } | |
395c3793 | 5715 | } |
378cc40b | 5716 | s--; |
79072805 | 5717 | Rop(OP_LT); |
378cc40b LW |
5718 | case '>': |
5719 | s++; | |
90771dc0 NC |
5720 | { |
5721 | const char tmp = *s++; | |
5722 | if (tmp == '>') | |
5723 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 5724 | else if (tmp == '=') |
90771dc0 NC |
5725 | Rop(OP_GE); |
5726 | } | |
378cc40b | 5727 | s--; |
79072805 | 5728 | Rop(OP_GT); |
378cc40b LW |
5729 | |
5730 | case '$': | |
bbce6d69 | 5731 | CLINE; |
5732 | ||
3280af22 NIS |
5733 | if (PL_expect == XOPERATOR) { |
5734 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5735 | return deprecate_commaless_var_list(); |
a0d0e21e | 5736 | } |
8990e307 | 5737 | } |
a0d0e21e | 5738 | |
c0b977fd | 5739 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-@", s[2]))) { |
3280af22 | 5740 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
5741 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
5742 | sizeof PL_tokenbuf - 1, FALSE); | |
5743 | if (PL_expect == XOPERATOR) | |
5744 | no_op("Array length", s); | |
3280af22 | 5745 | if (!PL_tokenbuf[1]) |
a0d0e21e | 5746 | PREREF(DOLSHARP); |
3280af22 NIS |
5747 | PL_expect = XOPERATOR; |
5748 | PL_pending_ident = '#'; | |
463ee0b2 | 5749 | TOKEN(DOLSHARP); |
79072805 | 5750 | } |
bbce6d69 | 5751 | |
3280af22 | 5752 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
5753 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
5754 | sizeof PL_tokenbuf - 1, FALSE); | |
5755 | if (PL_expect == XOPERATOR) | |
5756 | no_op("Scalar", s); | |
3280af22 NIS |
5757 | if (!PL_tokenbuf[1]) { |
5758 | if (s == PL_bufend) | |
bbce6d69 | 5759 | yyerror("Final $ should be \\$ or $name"); |
5760 | PREREF('$'); | |
8990e307 | 5761 | } |
a0d0e21e | 5762 | |
bbce6d69 | 5763 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 5764 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 5765 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 5766 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 5767 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 5768 | TERM(THING); |
5769 | } | |
5770 | ||
ff68c719 | 5771 | d = s; |
90771dc0 NC |
5772 | { |
5773 | const char tmp = *s; | |
ae28bb2a | 5774 | if (PL_lex_state == LEX_NORMAL || PL_lex_brackets) |
29595ff2 | 5775 | s = SKIPSPACE1(s); |
ff68c719 | 5776 | |
90771dc0 NC |
5777 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
5778 | && intuit_more(s)) { | |
5779 | if (*s == '[') { | |
5780 | PL_tokenbuf[0] = '@'; | |
5781 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
5782 | char *t = s+1; |
5783 | ||
5784 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
5785 | t++; | |
90771dc0 | 5786 | if (*t++ == ',') { |
29595ff2 | 5787 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
5788 | while (t < PL_bufend && *t != ']') |
5789 | t++; | |
9014280d | 5790 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 5791 | "Multidimensional syntax %.*s not supported", |
36c7798d | 5792 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 5793 | } |
748a9306 | 5794 | } |
93a17b20 | 5795 | } |
90771dc0 NC |
5796 | else if (*s == '{') { |
5797 | char *t; | |
5798 | PL_tokenbuf[0] = '%'; | |
5799 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
5800 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
5801 | { | |
5802 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
5803 | do { |
5804 | t++; | |
5805 | } while (isSPACE(*t)); | |
90771dc0 | 5806 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 5807 | STRLEN len; |
90771dc0 | 5808 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 5809 | &len); |
c35e046a AL |
5810 | while (isSPACE(*t)) |
5811 | t++; | |
780a5241 | 5812 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
5813 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
5814 | "You need to quote \"%s\"", | |
5815 | tmpbuf); | |
5816 | } | |
5817 | } | |
5818 | } | |
93a17b20 | 5819 | } |
bbce6d69 | 5820 | |
90771dc0 NC |
5821 | PL_expect = XOPERATOR; |
5822 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
5823 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
5824 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
5825 | PL_expect = XOPERATOR; | |
5826 | else if (strchr("$@\"'`q", *s)) | |
5827 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
5828 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
5829 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
5830 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
5831 | char tmpbuf[sizeof PL_tokenbuf]; | |
5832 | int t2; | |
5833 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 5834 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
5835 | /* binary operators exclude handle interpretations */ |
5836 | switch (t2) { | |
5837 | case -KEY_x: | |
5838 | case -KEY_eq: | |
5839 | case -KEY_ne: | |
5840 | case -KEY_gt: | |
5841 | case -KEY_lt: | |
5842 | case -KEY_ge: | |
5843 | case -KEY_le: | |
5844 | case -KEY_cmp: | |
5845 | break; | |
5846 | default: | |
5847 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
5848 | break; | |
5849 | } | |
5850 | } | |
5851 | else { | |
5852 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
5853 | } |
5854 | } | |
90771dc0 NC |
5855 | else if (isDIGIT(*s)) |
5856 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
5857 | else if (*s == '.' && isDIGIT(s[1])) | |
5858 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
5859 | else if ((*s == '?' || *s == '-' || *s == '+') | |
5860 | && !isSPACE(s[1]) && s[1] != '=') | |
5861 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
5862 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
5863 | && s[1] != '/') | |
5864 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
5865 | XXX except DORDOR operator | |
5866 | */ | |
5867 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
5868 | && s[2] != '=') | |
5869 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 5870 | } |
bbce6d69 | 5871 | } |
3280af22 | 5872 | PL_pending_ident = '$'; |
79072805 | 5873 | TOKEN('$'); |
378cc40b LW |
5874 | |
5875 | case '@': | |
3280af22 | 5876 | if (PL_expect == XOPERATOR) |
bbce6d69 | 5877 | no_op("Array", s); |
3280af22 NIS |
5878 | PL_tokenbuf[0] = '@'; |
5879 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
5880 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 5881 | PREREF('@'); |
5882 | } | |
3280af22 | 5883 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 5884 | s = SKIPSPACE1(s); |
3280af22 | 5885 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 5886 | if (*s == '{') |
3280af22 | 5887 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
5888 | |
5889 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
5890 | if (*s == '[' || *s == '{') { |
5891 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 5892 | const char *t = s + 1; |
7e2040f0 | 5893 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
5894 | t++; |
5895 | if (*t == '}' || *t == ']') { | |
5896 | t++; | |
29595ff2 | 5897 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 5898 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 5899 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
5900 | (int)(t-PL_bufptr), PL_bufptr, |
5901 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 5902 | } |
93a17b20 LW |
5903 | } |
5904 | } | |
463ee0b2 | 5905 | } |
3280af22 | 5906 | PL_pending_ident = '@'; |
79072805 | 5907 | TERM('@'); |
378cc40b | 5908 | |
c963b151 | 5909 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
5910 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
5911 | s += 2; | |
5912 | AOPERATOR(DORDOR); | |
5913 | } | |
c963b151 | 5914 | case '?': /* may either be conditional or pattern */ |
be25f609 | 5915 | if (PL_expect == XOPERATOR) { |
90771dc0 | 5916 | char tmp = *s++; |
c963b151 | 5917 | if(tmp == '?') { |
be25f609 | 5918 | OPERATOR('?'); |
c963b151 BD |
5919 | } |
5920 | else { | |
5921 | tmp = *s++; | |
5922 | if(tmp == '/') { | |
5923 | /* A // operator. */ | |
5924 | AOPERATOR(DORDOR); | |
5925 | } | |
5926 | else { | |
5927 | s--; | |
5928 | Mop(OP_DIVIDE); | |
5929 | } | |
5930 | } | |
5931 | } | |
5932 | else { | |
5933 | /* Disable warning on "study /blah/" */ | |
5934 | if (PL_oldoldbufptr == PL_last_uni | |
5935 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
5936 | || memNE(PL_last_uni, "study", 5) | |
5937 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
5938 | )) | |
5939 | check_uni(); | |
5940 | s = scan_pat(s,OP_MATCH); | |
5941 | TERM(sublex_start()); | |
5942 | } | |
378cc40b LW |
5943 | |
5944 | case '.': | |
51882d45 GS |
5945 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
5946 | #ifdef PERL_STRICT_CR | |
5947 | && s[1] == '\n' | |
5948 | #else | |
5949 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
5950 | #endif | |
5951 | && (s == PL_linestart || s[-1] == '\n') ) | |
5952 | { | |
3280af22 NIS |
5953 | PL_lex_formbrack = 0; |
5954 | PL_expect = XSTATE; | |
79072805 LW |
5955 | goto rightbracket; |
5956 | } | |
be25f609 | 5957 | if (PL_expect == XSTATE && s[1] == '.' && s[2] == '.') { |
5958 | s += 3; | |
5959 | OPERATOR(YADAYADA); | |
5960 | } | |
3280af22 | 5961 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5962 | char tmp = *s++; |
a687059c LW |
5963 | if (*s == tmp) { |
5964 | s++; | |
2f3197b3 LW |
5965 | if (*s == tmp) { |
5966 | s++; | |
6154021b | 5967 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5968 | } |
5969 | else | |
6154021b | 5970 | pl_yylval.ival = 0; |
378cc40b | 5971 | OPERATOR(DOTDOT); |
a687059c | 5972 | } |
79072805 | 5973 | Aop(OP_CONCAT); |
378cc40b LW |
5974 | } |
5975 | /* FALL THROUGH */ | |
5976 | case '0': case '1': case '2': case '3': case '4': | |
5977 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5978 | s = scan_num(s, &pl_yylval); |
931e0695 | 5979 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5980 | if (PL_expect == XOPERATOR) |
8990e307 | 5981 | no_op("Number",s); |
79072805 LW |
5982 | TERM(THING); |
5983 | ||
5984 | case '\'': | |
5db06880 | 5985 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5986 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5987 | if (PL_expect == XOPERATOR) { |
5988 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5989 | return deprecate_commaless_var_list(); |
a0d0e21e | 5990 | } |
463ee0b2 | 5991 | else |
8990e307 | 5992 | no_op("String",s); |
463ee0b2 | 5993 | } |
79072805 | 5994 | if (!s) |
d4c19fe8 | 5995 | missingterm(NULL); |
6154021b | 5996 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5997 | TERM(sublex_start()); |
5998 | ||
5999 | case '"': | |
5db06880 | 6000 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 6001 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
6002 | if (PL_expect == XOPERATOR) { |
6003 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 6004 | return deprecate_commaless_var_list(); |
a0d0e21e | 6005 | } |
463ee0b2 | 6006 | else |
8990e307 | 6007 | no_op("String",s); |
463ee0b2 | 6008 | } |
79072805 | 6009 | if (!s) |
d4c19fe8 | 6010 | missingterm(NULL); |
6154021b | 6011 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
6012 | /* FIXME. I think that this can be const if char *d is replaced by |
6013 | more localised variables. */ | |
3280af22 | 6014 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 6015 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 6016 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
6017 | break; |
6018 | } | |
6019 | } | |
79072805 LW |
6020 | TERM(sublex_start()); |
6021 | ||
6022 | case '`': | |
5db06880 | 6023 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 6024 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 6025 | if (PL_expect == XOPERATOR) |
8990e307 | 6026 | no_op("Backticks",s); |
79072805 | 6027 | if (!s) |
d4c19fe8 | 6028 | missingterm(NULL); |
9b201d7d | 6029 | readpipe_override(); |
79072805 LW |
6030 | TERM(sublex_start()); |
6031 | ||
6032 | case '\\': | |
6033 | s++; | |
a2a5de95 NC |
6034 | if (PL_lex_inwhat && isDIGIT(*s)) |
6035 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", | |
6036 | *s, *s); | |
3280af22 | 6037 | if (PL_expect == XOPERATOR) |
8990e307 | 6038 | no_op("Backslash",s); |
79072805 LW |
6039 | OPERATOR(REFGEN); |
6040 | ||
a7cb1f99 | 6041 | case 'v': |
e526c9e6 | 6042 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 6043 | char *start = s + 2; |
dd629d5b | 6044 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
6045 | start++; |
6046 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 6047 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
6048 | TERM(THING); |
6049 | } | |
e526c9e6 | 6050 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
6051 | else if (!isALPHA(*start) && (PL_expect == XTERM |
6052 | || PL_expect == XREF || PL_expect == XSTATE | |
6053 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 6054 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 6055 | if (!gv) { |
6154021b | 6056 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
6057 | TERM(THING); |
6058 | } | |
6059 | } | |
a7cb1f99 GS |
6060 | } |
6061 | goto keylookup; | |
79072805 | 6062 | case 'x': |
3280af22 | 6063 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
6064 | s++; |
6065 | Mop(OP_REPEAT); | |
2f3197b3 | 6066 | } |
79072805 LW |
6067 | goto keylookup; |
6068 | ||
378cc40b | 6069 | case '_': |
79072805 LW |
6070 | case 'a': case 'A': |
6071 | case 'b': case 'B': | |
6072 | case 'c': case 'C': | |
6073 | case 'd': case 'D': | |
6074 | case 'e': case 'E': | |
6075 | case 'f': case 'F': | |
6076 | case 'g': case 'G': | |
6077 | case 'h': case 'H': | |
6078 | case 'i': case 'I': | |
6079 | case 'j': case 'J': | |
6080 | case 'k': case 'K': | |
6081 | case 'l': case 'L': | |
6082 | case 'm': case 'M': | |
6083 | case 'n': case 'N': | |
6084 | case 'o': case 'O': | |
6085 | case 'p': case 'P': | |
6086 | case 'q': case 'Q': | |
6087 | case 'r': case 'R': | |
6088 | case 's': case 'S': | |
6089 | case 't': case 'T': | |
6090 | case 'u': case 'U': | |
a7cb1f99 | 6091 | case 'V': |
79072805 LW |
6092 | case 'w': case 'W': |
6093 | case 'X': | |
6094 | case 'y': case 'Y': | |
6095 | case 'z': case 'Z': | |
6096 | ||
49dc05e3 | 6097 | keylookup: { |
88e1f1a2 | 6098 | bool anydelim; |
90771dc0 | 6099 | I32 tmp; |
10edeb5d JH |
6100 | |
6101 | orig_keyword = 0; | |
6102 | gv = NULL; | |
6103 | gvp = NULL; | |
49dc05e3 | 6104 | |
3280af22 NIS |
6105 | PL_bufptr = s; |
6106 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 6107 | |
6108 | /* Some keywords can be followed by any delimiter, including ':' */ | |
88e1f1a2 | 6109 | anydelim = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
155aba94 GS |
6110 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || |
6111 | (PL_tokenbuf[0] == 'q' && | |
6112 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 6113 | |
6114 | /* x::* is just a word, unless x is "CORE" */ | |
88e1f1a2 | 6115 | if (!anydelim && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
6116 | goto just_a_word; |
6117 | ||
3643fb5f | 6118 | d = s; |
3280af22 | 6119 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
6120 | d++; /* no comments skipped here, or s### is misparsed */ |
6121 | ||
748a9306 | 6122 | /* Is this a word before a => operator? */ |
1c3923b3 | 6123 | if (*d == '=' && d[1] == '>') { |
748a9306 | 6124 | CLINE; |
6154021b | 6125 | pl_yylval.opval |
d0a148a6 NC |
6126 | = (OP*)newSVOP(OP_CONST, 0, |
6127 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 6128 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
6129 | TERM(WORD); |
6130 | } | |
6131 | ||
88e1f1a2 JV |
6132 | /* Check for plugged-in keyword */ |
6133 | { | |
6134 | OP *o; | |
6135 | int result; | |
6136 | char *saved_bufptr = PL_bufptr; | |
6137 | PL_bufptr = s; | |
16c91539 | 6138 | result = PL_keyword_plugin(aTHX_ PL_tokenbuf, len, &o); |
88e1f1a2 JV |
6139 | s = PL_bufptr; |
6140 | if (result == KEYWORD_PLUGIN_DECLINE) { | |
6141 | /* not a plugged-in keyword */ | |
6142 | PL_bufptr = saved_bufptr; | |
6143 | } else if (result == KEYWORD_PLUGIN_STMT) { | |
6144 | pl_yylval.opval = o; | |
6145 | CLINE; | |
6146 | PL_expect = XSTATE; | |
6147 | return REPORT(PLUGSTMT); | |
6148 | } else if (result == KEYWORD_PLUGIN_EXPR) { | |
6149 | pl_yylval.opval = o; | |
6150 | CLINE; | |
6151 | PL_expect = XOPERATOR; | |
6152 | return REPORT(PLUGEXPR); | |
6153 | } else { | |
6154 | Perl_croak(aTHX_ "Bad plugin affecting keyword '%s'", | |
6155 | PL_tokenbuf); | |
6156 | } | |
6157 | } | |
6158 | ||
6159 | /* Check for built-in keyword */ | |
6160 | tmp = keyword(PL_tokenbuf, len, 0); | |
6161 | ||
6162 | /* Is this a label? */ | |
6163 | if (!anydelim && PL_expect == XSTATE | |
6164 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
88e1f1a2 JV |
6165 | s = d + 1; |
6166 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); | |
6167 | CLINE; | |
6168 | TOKEN(LABEL); | |
6169 | } | |
6170 | ||
a0d0e21e | 6171 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
6172 | GV *ogv = NULL; /* override (winner) */ |
6173 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 6174 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 6175 | CV *cv; |
90e5519e | 6176 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
6177 | (cv = GvCVu(gv))) |
6178 | { | |
6179 | if (GvIMPORTED_CV(gv)) | |
6180 | ogv = gv; | |
6181 | else if (! CvMETHOD(cv)) | |
6182 | hgv = gv; | |
6183 | } | |
6184 | if (!ogv && | |
3280af22 | 6185 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 6186 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
6187 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
6188 | { | |
6189 | ogv = gv; | |
6190 | } | |
6191 | } | |
6192 | if (ogv) { | |
30fe34ed | 6193 | orig_keyword = tmp; |
56f7f34b | 6194 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
6195 | } |
6196 | else if (gv && !gvp | |
6197 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 6198 | && GvCVu(gv)) |
6e7b2336 GS |
6199 | { |
6200 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 6201 | } |
56f7f34b CS |
6202 | else { /* no override */ |
6203 | tmp = -tmp; | |
a2a5de95 NC |
6204 | if (tmp == KEY_dump) { |
6205 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
6206 | "dump() better written as CORE::dump()"); | |
ac206dc8 | 6207 | } |
a0714e2c | 6208 | gv = NULL; |
56f7f34b | 6209 | gvp = 0; |
a2a5de95 NC |
6210 | if (hgv && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */ |
6211 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
de2b151d JM |
6212 | "Ambiguous call resolved as CORE::%s(), " |
6213 | "qualify as such or use &", | |
6214 | GvENAME(hgv)); | |
49dc05e3 | 6215 | } |
a0d0e21e LW |
6216 | } |
6217 | ||
6218 | reserved_word: | |
6219 | switch (tmp) { | |
79072805 LW |
6220 | |
6221 | default: /* not a keyword */ | |
0bfa2a8a NC |
6222 | /* Trade off - by using this evil construction we can pull the |
6223 | variable gv into the block labelled keylookup. If not, then | |
6224 | we have to give it function scope so that the goto from the | |
6225 | earlier ':' case doesn't bypass the initialisation. */ | |
6226 | if (0) { | |
6227 | just_a_word_zero_gv: | |
6228 | gv = NULL; | |
6229 | gvp = NULL; | |
8bee0991 | 6230 | orig_keyword = 0; |
0bfa2a8a | 6231 | } |
93a17b20 | 6232 | just_a_word: { |
96e4d5b1 | 6233 | SV *sv; |
ce29ac45 | 6234 | int pkgname = 0; |
f54cb97a | 6235 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
f7461760 | 6236 | OP *rv2cv_op; |
5069cc75 | 6237 | CV *cv; |
5db06880 | 6238 | #ifdef PERL_MAD |
cd81e915 | 6239 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
6240 | #endif |
6241 | ||
8990e307 LW |
6242 | |
6243 | /* Get the rest if it looks like a package qualifier */ | |
6244 | ||
155aba94 | 6245 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 6246 | STRLEN morelen; |
3280af22 | 6247 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
6248 | TRUE, &morelen); |
6249 | if (!morelen) | |
cea2e8a9 | 6250 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 6251 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 6252 | len += morelen; |
ce29ac45 | 6253 | pkgname = 1; |
a0d0e21e | 6254 | } |
8990e307 | 6255 | |
3280af22 NIS |
6256 | if (PL_expect == XOPERATOR) { |
6257 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 6258 | CopLINE_dec(PL_curcop); |
f1f66076 | 6259 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 6260 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
6261 | } |
6262 | else | |
54310121 | 6263 | no_op("Bareword",s); |
463ee0b2 | 6264 | } |
8990e307 | 6265 | |
c3e0f903 GS |
6266 | /* Look for a subroutine with this name in current package, |
6267 | unless name is "Foo::", in which case Foo is a bearword | |
6268 | (and a package name). */ | |
6269 | ||
5db06880 | 6270 | if (len > 2 && !PL_madskills && |
3280af22 | 6271 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 6272 | { |
f776e3cd | 6273 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 6274 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 6275 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 6276 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 6277 | PL_tokenbuf); |
c3e0f903 | 6278 | len -= 2; |
3280af22 | 6279 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 6280 | gv = NULL; |
c3e0f903 GS |
6281 | gvp = 0; |
6282 | } | |
6283 | else { | |
62d55b22 NC |
6284 | if (!gv) { |
6285 | /* Mustn't actually add anything to a symbol table. | |
6286 | But also don't want to "initialise" any placeholder | |
6287 | constants that might already be there into full | |
6288 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
6289 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
6290 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 6291 | } |
b3d904f3 | 6292 | len = 0; |
c3e0f903 GS |
6293 | } |
6294 | ||
6295 | /* if we saw a global override before, get the right name */ | |
8990e307 | 6296 | |
37bb7629 EB |
6297 | sv = S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, |
6298 | len ? len : strlen(PL_tokenbuf)); | |
49dc05e3 | 6299 | if (gvp) { |
37bb7629 | 6300 | SV * const tmp_sv = sv; |
396482e1 | 6301 | sv = newSVpvs("CORE::GLOBAL::"); |
37bb7629 EB |
6302 | sv_catsv(sv, tmp_sv); |
6303 | SvREFCNT_dec(tmp_sv); | |
8a7a129d | 6304 | } |
37bb7629 | 6305 | |
5db06880 | 6306 | #ifdef PERL_MAD |
cd81e915 NC |
6307 | if (PL_madskills && !PL_thistoken) { |
6308 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 6309 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 6310 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
6311 | } |
6312 | #endif | |
8990e307 | 6313 | |
a0d0e21e | 6314 | /* Presume this is going to be a bareword of some sort. */ |
a0d0e21e | 6315 | CLINE; |
6154021b RGS |
6316 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
6317 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
a0d0e21e | 6318 | |
c3e0f903 | 6319 | /* And if "Foo::", then that's what it certainly is. */ |
c3e0f903 GS |
6320 | if (len) |
6321 | goto safe_bareword; | |
6322 | ||
f7461760 Z |
6323 | cv = NULL; |
6324 | { | |
6325 | OP *const_op = newSVOP(OP_CONST, 0, SvREFCNT_inc(sv)); | |
6326 | const_op->op_private = OPpCONST_BARE; | |
6327 | rv2cv_op = newCVREF(0, const_op); | |
6328 | } | |
6329 | if (rv2cv_op->op_type == OP_RV2CV && | |
6330 | (rv2cv_op->op_flags & OPf_KIDS)) { | |
6331 | OP *rv_op = cUNOPx(rv2cv_op)->op_first; | |
6332 | switch (rv_op->op_type) { | |
6333 | case OP_CONST: { | |
6334 | SV *sv = cSVOPx_sv(rv_op); | |
6335 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) | |
6336 | cv = (CV*)SvRV(sv); | |
6337 | } break; | |
6338 | case OP_GV: { | |
6339 | GV *gv = cGVOPx_gv(rv_op); | |
6340 | CV *maybe_cv = GvCVu(gv); | |
6341 | if (maybe_cv && SvTYPE((SV*)maybe_cv) == SVt_PVCV) | |
6342 | cv = maybe_cv; | |
6343 | } break; | |
6344 | } | |
6345 | } | |
5069cc75 | 6346 | |
8990e307 LW |
6347 | /* See if it's the indirect object for a list operator. */ |
6348 | ||
3280af22 NIS |
6349 | if (PL_oldoldbufptr && |
6350 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
6351 | (PL_oldoldbufptr == PL_last_lop |
6352 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 6353 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
6354 | (PL_expect == XREF || |
6355 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 6356 | { |
748a9306 LW |
6357 | bool immediate_paren = *s == '('; |
6358 | ||
a0d0e21e | 6359 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 6360 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 6361 | #ifdef PERL_MAD |
cd81e915 | 6362 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 6363 | #endif |
a0d0e21e LW |
6364 | |
6365 | /* Two barewords in a row may indicate method call. */ | |
6366 | ||
62d55b22 | 6367 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
f7461760 Z |
6368 | (tmp = intuit_method(s, gv, cv))) { |
6369 | op_free(rv2cv_op); | |
bbf60fe6 | 6370 | return REPORT(tmp); |
f7461760 | 6371 | } |
a0d0e21e LW |
6372 | |
6373 | /* If not a declared subroutine, it's an indirect object. */ | |
6374 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 6375 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 6376 | |
7294df96 RGS |
6377 | if ( |
6378 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
f7461760 | 6379 | (!cv && |
a9ef352a | 6380 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 6381 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
6382 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
6383 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
6384 | ) | |
a9ef352a | 6385 | { |
3280af22 | 6386 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 6387 | goto bareword; |
93a17b20 LW |
6388 | } |
6389 | } | |
8990e307 | 6390 | |
3280af22 | 6391 | PL_expect = XOPERATOR; |
5db06880 NC |
6392 | #ifdef PERL_MAD |
6393 | if (isSPACE(*s)) | |
cd81e915 NC |
6394 | s = SKIPSPACE2(s,nextPL_nextwhite); |
6395 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 6396 | #else |
8990e307 | 6397 | s = skipspace(s); |
5db06880 | 6398 | #endif |
1c3923b3 GS |
6399 | |
6400 | /* Is this a word before a => operator? */ | |
ce29ac45 | 6401 | if (*s == '=' && s[1] == '>' && !pkgname) { |
f7461760 | 6402 | op_free(rv2cv_op); |
1c3923b3 | 6403 | CLINE; |
6154021b | 6404 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 6405 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 6406 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
6407 | TERM(WORD); |
6408 | } | |
6409 | ||
6410 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 6411 | if (*s == '(') { |
79072805 | 6412 | CLINE; |
5069cc75 | 6413 | if (cv) { |
c35e046a AL |
6414 | d = s + 1; |
6415 | while (SPACE_OR_TAB(*d)) | |
6416 | d++; | |
f7461760 | 6417 | if (*d == ')' && (sv = cv_const_sv(cv))) { |
96e4d5b1 | 6418 | s = d + 1; |
c631f32b | 6419 | goto its_constant; |
96e4d5b1 | 6420 | } |
6421 | } | |
5db06880 NC |
6422 | #ifdef PERL_MAD |
6423 | if (PL_madskills) { | |
cd81e915 NC |
6424 | PL_nextwhite = PL_thiswhite; |
6425 | PL_thiswhite = 0; | |
5db06880 | 6426 | } |
cd81e915 | 6427 | start_force(PL_curforce); |
5db06880 | 6428 | #endif |
6154021b | 6429 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6430 | PL_expect = XOPERATOR; |
5db06880 NC |
6431 | #ifdef PERL_MAD |
6432 | if (PL_madskills) { | |
cd81e915 NC |
6433 | PL_nextwhite = nextPL_nextwhite; |
6434 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6435 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6436 | } |
6437 | #endif | |
f7461760 | 6438 | op_free(rv2cv_op); |
93a17b20 | 6439 | force_next(WORD); |
6154021b | 6440 | pl_yylval.ival = 0; |
463ee0b2 | 6441 | TOKEN('&'); |
79072805 | 6442 | } |
93a17b20 | 6443 | |
a0d0e21e | 6444 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 6445 | |
f7461760 Z |
6446 | if ((*s == '$' || *s == '{') && !cv) { |
6447 | op_free(rv2cv_op); | |
3280af22 NIS |
6448 | PL_last_lop = PL_oldbufptr; |
6449 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 6450 | PREBLOCK(METHOD); |
463ee0b2 LW |
6451 | } |
6452 | ||
8990e307 LW |
6453 | /* If followed by a bareword, see if it looks like indir obj. */ |
6454 | ||
30fe34ed RGS |
6455 | if (!orig_keyword |
6456 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
f7461760 Z |
6457 | && (tmp = intuit_method(s, gv, cv))) { |
6458 | op_free(rv2cv_op); | |
bbf60fe6 | 6459 | return REPORT(tmp); |
f7461760 | 6460 | } |
93a17b20 | 6461 | |
8990e307 LW |
6462 | /* Not a method, so call it a subroutine (if defined) */ |
6463 | ||
5069cc75 | 6464 | if (cv) { |
9b387841 NC |
6465 | if (lastchar == '-') |
6466 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6467 | "Ambiguous use of -%s resolved as -&%s()", | |
6468 | PL_tokenbuf, PL_tokenbuf); | |
89bfa8cd | 6469 | /* Check for a constant sub */ |
f7461760 | 6470 | if ((sv = cv_const_sv(cv))) { |
96e4d5b1 | 6471 | its_constant: |
f7461760 | 6472 | op_free(rv2cv_op); |
6154021b RGS |
6473 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
6474 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
6475 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 6476 | TOKEN(WORD); |
89bfa8cd | 6477 | } |
6478 | ||
6154021b | 6479 | op_free(pl_yylval.opval); |
f7461760 | 6480 | pl_yylval.opval = rv2cv_op; |
6154021b | 6481 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 6482 | PL_last_lop = PL_oldbufptr; |
bf848113 | 6483 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 6484 | /* Is there a prototype? */ |
5db06880 NC |
6485 | if ( |
6486 | #ifdef PERL_MAD | |
6487 | cv && | |
6488 | #endif | |
d9f2850e RGS |
6489 | SvPOK(cv)) |
6490 | { | |
5f66b61c | 6491 | STRLEN protolen; |
daba3364 | 6492 | const char *proto = SvPV_const(MUTABLE_SV(cv), protolen); |
5f66b61c | 6493 | if (!protolen) |
4633a7c4 | 6494 | TERM(FUNC0SUB); |
0f5d0394 AE |
6495 | while (*proto == ';') |
6496 | proto++; | |
649d02de FC |
6497 | if ( |
6498 | ( | |
6499 | ( | |
6500 | *proto == '$' || *proto == '_' | |
6501 | || *proto == '*' | |
6502 | ) | |
6503 | && proto[1] == '\0' | |
6504 | ) | |
6505 | || ( | |
6506 | *proto == '\\' && proto[1] && proto[2] == '\0' | |
6507 | ) | |
6508 | ) | |
6509 | OPERATOR(UNIOPSUB); | |
6510 | if (*proto == '\\' && proto[1] == '[') { | |
6511 | const char *p = proto + 2; | |
6512 | while(*p && *p != ']') | |
6513 | ++p; | |
6514 | if(*p == ']' && !p[1]) OPERATOR(UNIOPSUB); | |
6515 | } | |
7a52d87a | 6516 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
6517 | if (PL_curstash) |
6518 | sv_setpvs(PL_subname, "__ANON__"); | |
6519 | else | |
6520 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
6521 | PREBLOCK(LSTOPSUB); |
6522 | } | |
a9ef352a | 6523 | } |
5db06880 NC |
6524 | #ifdef PERL_MAD |
6525 | { | |
6526 | if (PL_madskills) { | |
cd81e915 NC |
6527 | PL_nextwhite = PL_thiswhite; |
6528 | PL_thiswhite = 0; | |
5db06880 | 6529 | } |
cd81e915 | 6530 | start_force(PL_curforce); |
6154021b | 6531 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
6532 | PL_expect = XTERM; |
6533 | if (PL_madskills) { | |
cd81e915 NC |
6534 | PL_nextwhite = nextPL_nextwhite; |
6535 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6536 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6537 | } |
6538 | force_next(WORD); | |
6539 | TOKEN(NOAMP); | |
6540 | } | |
6541 | } | |
6542 | ||
6543 | /* Guess harder when madskills require "best effort". */ | |
6544 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
6545 | int probable_sub = 0; | |
6546 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
6547 | probable_sub = 1; | |
6548 | else if (isALPHA(*s)) { | |
6549 | char tmpbuf[1024]; | |
6550 | STRLEN tmplen; | |
6551 | d = s; | |
6552 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 6553 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
6554 | probable_sub = 1; |
6555 | else { | |
6556 | while (d < PL_bufend && isSPACE(*d)) | |
6557 | d++; | |
6558 | if (*d == '=' && d[1] == '>') | |
6559 | probable_sub = 1; | |
6560 | } | |
6561 | } | |
6562 | if (probable_sub) { | |
7a6d04f4 | 6563 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b | 6564 | op_free(pl_yylval.opval); |
f7461760 | 6565 | pl_yylval.opval = rv2cv_op; |
6154021b | 6566 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
5db06880 NC |
6567 | PL_last_lop = PL_oldbufptr; |
6568 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
6569 | PL_nextwhite = PL_thiswhite; |
6570 | PL_thiswhite = 0; | |
6571 | start_force(PL_curforce); | |
6154021b | 6572 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 6573 | PL_expect = XTERM; |
cd81e915 NC |
6574 | PL_nextwhite = nextPL_nextwhite; |
6575 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6576 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6577 | force_next(WORD); |
6578 | TOKEN(NOAMP); | |
6579 | } | |
6580 | #else | |
6154021b | 6581 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6582 | PL_expect = XTERM; |
8990e307 LW |
6583 | force_next(WORD); |
6584 | TOKEN(NOAMP); | |
5db06880 | 6585 | #endif |
8990e307 | 6586 | } |
748a9306 | 6587 | |
8990e307 LW |
6588 | /* Call it a bare word */ |
6589 | ||
5603f27d | 6590 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 6591 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d | 6592 | else { |
9a073a1d RGS |
6593 | bareword: |
6594 | /* after "print" and similar functions (corresponding to | |
6595 | * "F? L" in opcode.pl), whatever wasn't already parsed as | |
6596 | * a filehandle should be subject to "strict subs". | |
6597 | * Likewise for the optional indirect-object argument to system | |
6598 | * or exec, which can't be a bareword */ | |
6599 | if ((PL_last_lop_op == OP_PRINT | |
6600 | || PL_last_lop_op == OP_PRTF | |
6601 | || PL_last_lop_op == OP_SAY | |
6602 | || PL_last_lop_op == OP_SYSTEM | |
6603 | || PL_last_lop_op == OP_EXEC) | |
6604 | && (PL_hints & HINT_STRICT_SUBS)) | |
6605 | pl_yylval.opval->op_private |= OPpCONST_STRICT; | |
041457d9 DM |
6606 | if (lastchar != '-') { |
6607 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
6608 | d = PL_tokenbuf; |
6609 | while (isLOWER(*d)) | |
6610 | d++; | |
da51bb9b | 6611 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 6612 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
6613 | PL_tokenbuf); |
6614 | } | |
748a9306 LW |
6615 | } |
6616 | } | |
f7461760 | 6617 | op_free(rv2cv_op); |
c3e0f903 GS |
6618 | |
6619 | safe_bareword: | |
9b387841 NC |
6620 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&')) { |
6621 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6622 | "Operator or semicolon missing before %c%s", | |
6623 | lastchar, PL_tokenbuf); | |
6624 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6625 | "Ambiguous use of %c resolved as operator %c", | |
6626 | lastchar, lastchar); | |
748a9306 | 6627 | } |
93a17b20 | 6628 | TOKEN(WORD); |
79072805 | 6629 | } |
79072805 | 6630 | |
68dc0745 | 6631 | case KEY___FILE__: |
6154021b | 6632 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 6633 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 6634 | TERM(THING); |
6635 | ||
79072805 | 6636 | case KEY___LINE__: |
6154021b | 6637 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 6638 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 6639 | TERM(THING); |
68dc0745 | 6640 | |
6641 | case KEY___PACKAGE__: | |
6154021b | 6642 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 6643 | (PL_curstash |
5aaec2b4 | 6644 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 6645 | : &PL_sv_undef)); |
79072805 | 6646 | TERM(THING); |
79072805 | 6647 | |
e50aee73 | 6648 | case KEY___DATA__: |
79072805 LW |
6649 | case KEY___END__: { |
6650 | GV *gv; | |
3280af22 | 6651 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 6652 | const char *pname = "main"; |
3280af22 | 6653 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 6654 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
6655 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
6656 | SVt_PVIO); | |
a5f75d66 | 6657 | GvMULTI_on(gv); |
79072805 | 6658 | if (!GvIO(gv)) |
a0d0e21e | 6659 | GvIOp(gv) = newIO(); |
3280af22 | 6660 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
6661 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
6662 | { | |
f54cb97a | 6663 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
6664 | fcntl(fd,F_SETFD,fd >= 3); |
6665 | } | |
79072805 | 6666 | #endif |
fd049845 | 6667 | /* Mark this internal pseudo-handle as clean */ |
6668 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 6669 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 6670 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 6671 | else |
50952442 | 6672 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
6673 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
6674 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 6675 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 6676 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
6677 | if (PL_bufend-PL_bufptr > 2 |
6678 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
6679 | { |
6680 | Off_t loc = 0; | |
50952442 | 6681 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
6682 | loc = PerlIO_tell(PL_rsfp); |
6683 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
6684 | } | |
2986a63f JH |
6685 | #ifdef NETWARE |
6686 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
6687 | #else | |
c39cd008 | 6688 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 6689 | #endif /* NETWARE */ |
1143fce0 JH |
6690 | #ifdef PERLIO_IS_STDIO /* really? */ |
6691 | # if defined(__BORLANDC__) | |
cb359b41 JH |
6692 | /* XXX see note in do_binmode() */ |
6693 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
6694 | # endif |
6695 | #endif | |
c39cd008 GS |
6696 | if (loc > 0) |
6697 | PerlIO_seek(PL_rsfp, loc, 0); | |
6698 | } | |
6699 | } | |
6700 | #endif | |
7948272d | 6701 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
6702 | if (!IN_BYTES) { |
6703 | if (UTF) | |
6704 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
6705 | else if (PL_encoding) { | |
6706 | SV *name; | |
6707 | dSP; | |
6708 | ENTER; | |
6709 | SAVETMPS; | |
6710 | PUSHMARK(sp); | |
6711 | EXTEND(SP, 1); | |
6712 | XPUSHs(PL_encoding); | |
6713 | PUTBACK; | |
6714 | call_method("name", G_SCALAR); | |
6715 | SPAGAIN; | |
6716 | name = POPs; | |
6717 | PUTBACK; | |
bfed75c6 | 6718 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 6719 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 6720 | SVfARG(name))); |
52d2e0f4 JH |
6721 | FREETMPS; |
6722 | LEAVE; | |
6723 | } | |
6724 | } | |
7948272d | 6725 | #endif |
5db06880 NC |
6726 | #ifdef PERL_MAD |
6727 | if (PL_madskills) { | |
cd81e915 NC |
6728 | if (PL_realtokenstart >= 0) { |
6729 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
6730 | if (!PL_endwhite) | |
6b29d1f5 | 6731 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
6732 | sv_catsv(PL_endwhite, PL_thiswhite); |
6733 | PL_thiswhite = 0; | |
6734 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
6735 | PL_realtokenstart = -1; | |
5db06880 | 6736 | } |
5cc814fd NC |
6737 | while ((s = filter_gets(PL_endwhite, SvCUR(PL_endwhite))) |
6738 | != NULL) ; | |
5db06880 NC |
6739 | } |
6740 | #endif | |
4608196e | 6741 | PL_rsfp = NULL; |
79072805 LW |
6742 | } |
6743 | goto fake_eof; | |
e929a76b | 6744 | } |
de3bb511 | 6745 | |
8990e307 | 6746 | case KEY_AUTOLOAD: |
ed6116ce | 6747 | case KEY_DESTROY: |
79072805 | 6748 | case KEY_BEGIN: |
3c10abe3 | 6749 | case KEY_UNITCHECK: |
7d30b5c4 | 6750 | case KEY_CHECK: |
7d07dbc2 | 6751 | case KEY_INIT: |
7d30b5c4 | 6752 | case KEY_END: |
3280af22 NIS |
6753 | if (PL_expect == XSTATE) { |
6754 | s = PL_bufptr; | |
93a17b20 | 6755 | goto really_sub; |
79072805 LW |
6756 | } |
6757 | goto just_a_word; | |
6758 | ||
a0d0e21e LW |
6759 | case KEY_CORE: |
6760 | if (*s == ':' && s[1] == ':') { | |
6761 | s += 2; | |
748a9306 | 6762 | d = s; |
3280af22 | 6763 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 6764 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 6765 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
6766 | if (tmp < 0) |
6767 | tmp = -tmp; | |
850e8516 | 6768 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 6769 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 6770 | orig_keyword = tmp; |
a0d0e21e LW |
6771 | goto reserved_word; |
6772 | } | |
6773 | goto just_a_word; | |
6774 | ||
463ee0b2 LW |
6775 | case KEY_abs: |
6776 | UNI(OP_ABS); | |
6777 | ||
79072805 LW |
6778 | case KEY_alarm: |
6779 | UNI(OP_ALARM); | |
6780 | ||
6781 | case KEY_accept: | |
a0d0e21e | 6782 | LOP(OP_ACCEPT,XTERM); |
79072805 | 6783 | |
463ee0b2 LW |
6784 | case KEY_and: |
6785 | OPERATOR(ANDOP); | |
6786 | ||
79072805 | 6787 | case KEY_atan2: |
a0d0e21e | 6788 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 6789 | |
79072805 | 6790 | case KEY_bind: |
a0d0e21e | 6791 | LOP(OP_BIND,XTERM); |
79072805 LW |
6792 | |
6793 | case KEY_binmode: | |
1c1fc3ea | 6794 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
6795 | |
6796 | case KEY_bless: | |
a0d0e21e | 6797 | LOP(OP_BLESS,XTERM); |
79072805 | 6798 | |
0d863452 RH |
6799 | case KEY_break: |
6800 | FUN0(OP_BREAK); | |
6801 | ||
79072805 LW |
6802 | case KEY_chop: |
6803 | UNI(OP_CHOP); | |
6804 | ||
6805 | case KEY_continue: | |
0d863452 RH |
6806 | /* When 'use switch' is in effect, continue has a dual |
6807 | life as a control operator. */ | |
6808 | { | |
ef89dcc3 | 6809 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
6810 | PREBLOCK(CONTINUE); |
6811 | else { | |
6812 | /* We have to disambiguate the two senses of | |
6813 | "continue". If the next token is a '{' then | |
6814 | treat it as the start of a continue block; | |
6815 | otherwise treat it as a control operator. | |
6816 | */ | |
6817 | s = skipspace(s); | |
6818 | if (*s == '{') | |
79072805 | 6819 | PREBLOCK(CONTINUE); |
0d863452 RH |
6820 | else |
6821 | FUN0(OP_CONTINUE); | |
6822 | } | |
6823 | } | |
79072805 LW |
6824 | |
6825 | case KEY_chdir: | |
fafc274c NC |
6826 | /* may use HOME */ |
6827 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
6828 | UNI(OP_CHDIR); |
6829 | ||
6830 | case KEY_close: | |
6831 | UNI(OP_CLOSE); | |
6832 | ||
6833 | case KEY_closedir: | |
6834 | UNI(OP_CLOSEDIR); | |
6835 | ||
6836 | case KEY_cmp: | |
6837 | Eop(OP_SCMP); | |
6838 | ||
6839 | case KEY_caller: | |
6840 | UNI(OP_CALLER); | |
6841 | ||
6842 | case KEY_crypt: | |
6843 | #ifdef FCRYPT | |
f4c556ac GS |
6844 | if (!PL_cryptseen) { |
6845 | PL_cryptseen = TRUE; | |
de3bb511 | 6846 | init_des(); |
f4c556ac | 6847 | } |
a687059c | 6848 | #endif |
a0d0e21e | 6849 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
6850 | |
6851 | case KEY_chmod: | |
a0d0e21e | 6852 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
6853 | |
6854 | case KEY_chown: | |
a0d0e21e | 6855 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
6856 | |
6857 | case KEY_connect: | |
a0d0e21e | 6858 | LOP(OP_CONNECT,XTERM); |
79072805 | 6859 | |
463ee0b2 LW |
6860 | case KEY_chr: |
6861 | UNI(OP_CHR); | |
6862 | ||
79072805 LW |
6863 | case KEY_cos: |
6864 | UNI(OP_COS); | |
6865 | ||
6866 | case KEY_chroot: | |
6867 | UNI(OP_CHROOT); | |
6868 | ||
0d863452 RH |
6869 | case KEY_default: |
6870 | PREBLOCK(DEFAULT); | |
6871 | ||
79072805 | 6872 | case KEY_do: |
29595ff2 | 6873 | s = SKIPSPACE1(s); |
79072805 | 6874 | if (*s == '{') |
a0d0e21e | 6875 | PRETERMBLOCK(DO); |
79072805 | 6876 | if (*s != '\'') |
89c5585f | 6877 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
6878 | if (orig_keyword == KEY_do) { |
6879 | orig_keyword = 0; | |
6154021b | 6880 | pl_yylval.ival = 1; |
850e8516 RGS |
6881 | } |
6882 | else | |
6154021b | 6883 | pl_yylval.ival = 0; |
378cc40b | 6884 | OPERATOR(DO); |
79072805 LW |
6885 | |
6886 | case KEY_die: | |
3280af22 | 6887 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6888 | LOP(OP_DIE,XTERM); |
79072805 LW |
6889 | |
6890 | case KEY_defined: | |
6891 | UNI(OP_DEFINED); | |
6892 | ||
6893 | case KEY_delete: | |
a0d0e21e | 6894 | UNI(OP_DELETE); |
79072805 LW |
6895 | |
6896 | case KEY_dbmopen: | |
5c1737d1 | 6897 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 6898 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
6899 | |
6900 | case KEY_dbmclose: | |
6901 | UNI(OP_DBMCLOSE); | |
6902 | ||
6903 | case KEY_dump: | |
a0d0e21e | 6904 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6905 | LOOPX(OP_DUMP); |
6906 | ||
6907 | case KEY_else: | |
6908 | PREBLOCK(ELSE); | |
6909 | ||
6910 | case KEY_elsif: | |
6154021b | 6911 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6912 | OPERATOR(ELSIF); |
6913 | ||
6914 | case KEY_eq: | |
6915 | Eop(OP_SEQ); | |
6916 | ||
a0d0e21e LW |
6917 | case KEY_exists: |
6918 | UNI(OP_EXISTS); | |
4e553d73 | 6919 | |
79072805 | 6920 | case KEY_exit: |
5db06880 NC |
6921 | if (PL_madskills) |
6922 | UNI(OP_INT); | |
79072805 LW |
6923 | UNI(OP_EXIT); |
6924 | ||
6925 | case KEY_eval: | |
29595ff2 | 6926 | s = SKIPSPACE1(s); |
32e2a35d RGS |
6927 | if (*s == '{') { /* block eval */ |
6928 | PL_expect = XTERMBLOCK; | |
6929 | UNIBRACK(OP_ENTERTRY); | |
6930 | } | |
6931 | else { /* string eval */ | |
6932 | PL_expect = XTERM; | |
6933 | UNIBRACK(OP_ENTEREVAL); | |
6934 | } | |
79072805 LW |
6935 | |
6936 | case KEY_eof: | |
6937 | UNI(OP_EOF); | |
6938 | ||
6939 | case KEY_exp: | |
6940 | UNI(OP_EXP); | |
6941 | ||
6942 | case KEY_each: | |
6943 | UNI(OP_EACH); | |
6944 | ||
6945 | case KEY_exec: | |
a0d0e21e | 6946 | LOP(OP_EXEC,XREF); |
79072805 LW |
6947 | |
6948 | case KEY_endhostent: | |
6949 | FUN0(OP_EHOSTENT); | |
6950 | ||
6951 | case KEY_endnetent: | |
6952 | FUN0(OP_ENETENT); | |
6953 | ||
6954 | case KEY_endservent: | |
6955 | FUN0(OP_ESERVENT); | |
6956 | ||
6957 | case KEY_endprotoent: | |
6958 | FUN0(OP_EPROTOENT); | |
6959 | ||
6960 | case KEY_endpwent: | |
6961 | FUN0(OP_EPWENT); | |
6962 | ||
6963 | case KEY_endgrent: | |
6964 | FUN0(OP_EGRENT); | |
6965 | ||
6966 | case KEY_for: | |
6967 | case KEY_foreach: | |
6154021b | 6968 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 6969 | s = SKIPSPACE1(s); |
7e2040f0 | 6970 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 6971 | char *p = s; |
5db06880 NC |
6972 | #ifdef PERL_MAD |
6973 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
6974 | #endif | |
6975 | ||
3280af22 | 6976 | if ((PL_bufend - p) >= 3 && |
55497cff | 6977 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
6978 | p += 2; | |
77ca0c92 LW |
6979 | else if ((PL_bufend - p) >= 4 && |
6980 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
6981 | p += 3; | |
29595ff2 | 6982 | p = PEEKSPACE(p); |
7e2040f0 | 6983 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
6984 | p = scan_ident(p, PL_bufend, |
6985 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 6986 | p = PEEKSPACE(p); |
77ca0c92 LW |
6987 | } |
6988 | if (*p != '$') | |
cea2e8a9 | 6989 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
6990 | #ifdef PERL_MAD |
6991 | s = SvPVX(PL_linestr) + soff; | |
6992 | #endif | |
55497cff | 6993 | } |
79072805 LW |
6994 | OPERATOR(FOR); |
6995 | ||
6996 | case KEY_formline: | |
a0d0e21e | 6997 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
6998 | |
6999 | case KEY_fork: | |
7000 | FUN0(OP_FORK); | |
7001 | ||
7002 | case KEY_fcntl: | |
a0d0e21e | 7003 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
7004 | |
7005 | case KEY_fileno: | |
7006 | UNI(OP_FILENO); | |
7007 | ||
7008 | case KEY_flock: | |
a0d0e21e | 7009 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
7010 | |
7011 | case KEY_gt: | |
7012 | Rop(OP_SGT); | |
7013 | ||
7014 | case KEY_ge: | |
7015 | Rop(OP_SGE); | |
7016 | ||
7017 | case KEY_grep: | |
2c38e13d | 7018 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
7019 | |
7020 | case KEY_goto: | |
a0d0e21e | 7021 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7022 | LOOPX(OP_GOTO); |
7023 | ||
7024 | case KEY_gmtime: | |
7025 | UNI(OP_GMTIME); | |
7026 | ||
7027 | case KEY_getc: | |
6f33ba73 | 7028 | UNIDOR(OP_GETC); |
79072805 LW |
7029 | |
7030 | case KEY_getppid: | |
7031 | FUN0(OP_GETPPID); | |
7032 | ||
7033 | case KEY_getpgrp: | |
7034 | UNI(OP_GETPGRP); | |
7035 | ||
7036 | case KEY_getpriority: | |
a0d0e21e | 7037 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
7038 | |
7039 | case KEY_getprotobyname: | |
7040 | UNI(OP_GPBYNAME); | |
7041 | ||
7042 | case KEY_getprotobynumber: | |
a0d0e21e | 7043 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
7044 | |
7045 | case KEY_getprotoent: | |
7046 | FUN0(OP_GPROTOENT); | |
7047 | ||
7048 | case KEY_getpwent: | |
7049 | FUN0(OP_GPWENT); | |
7050 | ||
7051 | case KEY_getpwnam: | |
ff68c719 | 7052 | UNI(OP_GPWNAM); |
79072805 LW |
7053 | |
7054 | case KEY_getpwuid: | |
ff68c719 | 7055 | UNI(OP_GPWUID); |
79072805 LW |
7056 | |
7057 | case KEY_getpeername: | |
7058 | UNI(OP_GETPEERNAME); | |
7059 | ||
7060 | case KEY_gethostbyname: | |
7061 | UNI(OP_GHBYNAME); | |
7062 | ||
7063 | case KEY_gethostbyaddr: | |
a0d0e21e | 7064 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
7065 | |
7066 | case KEY_gethostent: | |
7067 | FUN0(OP_GHOSTENT); | |
7068 | ||
7069 | case KEY_getnetbyname: | |
7070 | UNI(OP_GNBYNAME); | |
7071 | ||
7072 | case KEY_getnetbyaddr: | |
a0d0e21e | 7073 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
7074 | |
7075 | case KEY_getnetent: | |
7076 | FUN0(OP_GNETENT); | |
7077 | ||
7078 | case KEY_getservbyname: | |
a0d0e21e | 7079 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
7080 | |
7081 | case KEY_getservbyport: | |
a0d0e21e | 7082 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
7083 | |
7084 | case KEY_getservent: | |
7085 | FUN0(OP_GSERVENT); | |
7086 | ||
7087 | case KEY_getsockname: | |
7088 | UNI(OP_GETSOCKNAME); | |
7089 | ||
7090 | case KEY_getsockopt: | |
a0d0e21e | 7091 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
7092 | |
7093 | case KEY_getgrent: | |
7094 | FUN0(OP_GGRENT); | |
7095 | ||
7096 | case KEY_getgrnam: | |
ff68c719 | 7097 | UNI(OP_GGRNAM); |
79072805 LW |
7098 | |
7099 | case KEY_getgrgid: | |
ff68c719 | 7100 | UNI(OP_GGRGID); |
79072805 LW |
7101 | |
7102 | case KEY_getlogin: | |
7103 | FUN0(OP_GETLOGIN); | |
7104 | ||
0d863452 | 7105 | case KEY_given: |
6154021b | 7106 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
7107 | OPERATOR(GIVEN); |
7108 | ||
93a17b20 | 7109 | case KEY_glob: |
a0d0e21e | 7110 | LOP(OP_GLOB,XTERM); |
93a17b20 | 7111 | |
79072805 LW |
7112 | case KEY_hex: |
7113 | UNI(OP_HEX); | |
7114 | ||
7115 | case KEY_if: | |
6154021b | 7116 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7117 | OPERATOR(IF); |
7118 | ||
7119 | case KEY_index: | |
a0d0e21e | 7120 | LOP(OP_INDEX,XTERM); |
79072805 LW |
7121 | |
7122 | case KEY_int: | |
7123 | UNI(OP_INT); | |
7124 | ||
7125 | case KEY_ioctl: | |
a0d0e21e | 7126 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
7127 | |
7128 | case KEY_join: | |
a0d0e21e | 7129 | LOP(OP_JOIN,XTERM); |
79072805 LW |
7130 | |
7131 | case KEY_keys: | |
7132 | UNI(OP_KEYS); | |
7133 | ||
7134 | case KEY_kill: | |
a0d0e21e | 7135 | LOP(OP_KILL,XTERM); |
79072805 LW |
7136 | |
7137 | case KEY_last: | |
a0d0e21e | 7138 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 7139 | LOOPX(OP_LAST); |
4e553d73 | 7140 | |
79072805 LW |
7141 | case KEY_lc: |
7142 | UNI(OP_LC); | |
7143 | ||
7144 | case KEY_lcfirst: | |
7145 | UNI(OP_LCFIRST); | |
7146 | ||
7147 | case KEY_local: | |
6154021b | 7148 | pl_yylval.ival = 0; |
79072805 LW |
7149 | OPERATOR(LOCAL); |
7150 | ||
7151 | case KEY_length: | |
7152 | UNI(OP_LENGTH); | |
7153 | ||
7154 | case KEY_lt: | |
7155 | Rop(OP_SLT); | |
7156 | ||
7157 | case KEY_le: | |
7158 | Rop(OP_SLE); | |
7159 | ||
7160 | case KEY_localtime: | |
7161 | UNI(OP_LOCALTIME); | |
7162 | ||
7163 | case KEY_log: | |
7164 | UNI(OP_LOG); | |
7165 | ||
7166 | case KEY_link: | |
a0d0e21e | 7167 | LOP(OP_LINK,XTERM); |
79072805 LW |
7168 | |
7169 | case KEY_listen: | |
a0d0e21e | 7170 | LOP(OP_LISTEN,XTERM); |
79072805 | 7171 | |
c0329465 MB |
7172 | case KEY_lock: |
7173 | UNI(OP_LOCK); | |
7174 | ||
79072805 LW |
7175 | case KEY_lstat: |
7176 | UNI(OP_LSTAT); | |
7177 | ||
7178 | case KEY_m: | |
8782bef2 | 7179 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
7180 | TERM(sublex_start()); |
7181 | ||
a0d0e21e | 7182 | case KEY_map: |
2c38e13d | 7183 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 7184 | |
79072805 | 7185 | case KEY_mkdir: |
a0d0e21e | 7186 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
7187 | |
7188 | case KEY_msgctl: | |
a0d0e21e | 7189 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
7190 | |
7191 | case KEY_msgget: | |
a0d0e21e | 7192 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
7193 | |
7194 | case KEY_msgrcv: | |
a0d0e21e | 7195 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
7196 | |
7197 | case KEY_msgsnd: | |
a0d0e21e | 7198 | LOP(OP_MSGSND,XTERM); |
79072805 | 7199 | |
77ca0c92 | 7200 | case KEY_our: |
93a17b20 | 7201 | case KEY_my: |
952306ac | 7202 | case KEY_state: |
eac04b2e | 7203 | PL_in_my = (U16)tmp; |
29595ff2 | 7204 | s = SKIPSPACE1(s); |
7e2040f0 | 7205 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
7206 | #ifdef PERL_MAD |
7207 | char* start = s; | |
7208 | #endif | |
3280af22 | 7209 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
7210 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
7211 | goto really_sub; | |
def3634b | 7212 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 7213 | if (!PL_in_my_stash) { |
c750a3ec | 7214 | char tmpbuf[1024]; |
3280af22 | 7215 | PL_bufptr = s; |
d9fad198 | 7216 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
7217 | yyerror(tmpbuf); |
7218 | } | |
5db06880 NC |
7219 | #ifdef PERL_MAD |
7220 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
7221 | sv_catsv(PL_thistoken, PL_nextwhite); |
7222 | PL_nextwhite = 0; | |
7223 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
7224 | } |
7225 | #endif | |
c750a3ec | 7226 | } |
6154021b | 7227 | pl_yylval.ival = 1; |
55497cff | 7228 | OPERATOR(MY); |
93a17b20 | 7229 | |
79072805 | 7230 | case KEY_next: |
a0d0e21e | 7231 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7232 | LOOPX(OP_NEXT); |
7233 | ||
7234 | case KEY_ne: | |
7235 | Eop(OP_SNE); | |
7236 | ||
a0d0e21e | 7237 | case KEY_no: |
468aa647 | 7238 | s = tokenize_use(0, s); |
a0d0e21e LW |
7239 | OPERATOR(USE); |
7240 | ||
7241 | case KEY_not: | |
29595ff2 | 7242 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
7243 | FUN1(OP_NOT); |
7244 | else | |
7245 | OPERATOR(NOTOP); | |
a0d0e21e | 7246 | |
79072805 | 7247 | case KEY_open: |
29595ff2 | 7248 | s = SKIPSPACE1(s); |
7e2040f0 | 7249 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 7250 | const char *t; |
c35e046a AL |
7251 | for (d = s; isALNUM_lazy_if(d,UTF);) |
7252 | d++; | |
7253 | for (t=d; isSPACE(*t);) | |
7254 | t++; | |
e2ab214b | 7255 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
7256 | /* [perl #16184] */ |
7257 | && !(t[0] == '=' && t[1] == '>') | |
7258 | ) { | |
5f66b61c | 7259 | int parms_len = (int)(d-s); |
9014280d | 7260 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 7261 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 7262 | parms_len, s, parms_len, s); |
66fbe8fb | 7263 | } |
93a17b20 | 7264 | } |
a0d0e21e | 7265 | LOP(OP_OPEN,XTERM); |
79072805 | 7266 | |
463ee0b2 | 7267 | case KEY_or: |
6154021b | 7268 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
7269 | OPERATOR(OROP); |
7270 | ||
79072805 LW |
7271 | case KEY_ord: |
7272 | UNI(OP_ORD); | |
7273 | ||
7274 | case KEY_oct: | |
7275 | UNI(OP_OCT); | |
7276 | ||
7277 | case KEY_opendir: | |
a0d0e21e | 7278 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
7279 | |
7280 | case KEY_print: | |
3280af22 | 7281 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 7282 | LOP(OP_PRINT,XREF); |
79072805 LW |
7283 | |
7284 | case KEY_printf: | |
3280af22 | 7285 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 7286 | LOP(OP_PRTF,XREF); |
79072805 | 7287 | |
c07a80fd | 7288 | case KEY_prototype: |
7289 | UNI(OP_PROTOTYPE); | |
7290 | ||
79072805 | 7291 | case KEY_push: |
a0d0e21e | 7292 | LOP(OP_PUSH,XTERM); |
79072805 LW |
7293 | |
7294 | case KEY_pop: | |
6f33ba73 | 7295 | UNIDOR(OP_POP); |
79072805 | 7296 | |
a0d0e21e | 7297 | case KEY_pos: |
6f33ba73 | 7298 | UNIDOR(OP_POS); |
4e553d73 | 7299 | |
79072805 | 7300 | case KEY_pack: |
a0d0e21e | 7301 | LOP(OP_PACK,XTERM); |
79072805 LW |
7302 | |
7303 | case KEY_package: | |
a0d0e21e | 7304 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
14a86d0c | 7305 | s = SKIPSPACE1(s); |
91152fc1 | 7306 | s = force_strict_version(s); |
4e4da3ac | 7307 | PL_lex_expect = XBLOCK; |
79072805 LW |
7308 | OPERATOR(PACKAGE); |
7309 | ||
7310 | case KEY_pipe: | |
a0d0e21e | 7311 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
7312 | |
7313 | case KEY_q: | |
5db06880 | 7314 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7315 | if (!s) |
d4c19fe8 | 7316 | missingterm(NULL); |
6154021b | 7317 | pl_yylval.ival = OP_CONST; |
79072805 LW |
7318 | TERM(sublex_start()); |
7319 | ||
a0d0e21e LW |
7320 | case KEY_quotemeta: |
7321 | UNI(OP_QUOTEMETA); | |
7322 | ||
ea25a9b2 Z |
7323 | case KEY_qw: { |
7324 | OP *words = NULL; | |
5db06880 | 7325 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 7326 | if (!s) |
d4c19fe8 | 7327 | missingterm(NULL); |
3480a8d2 | 7328 | PL_expect = XOPERATOR; |
8127e0e3 | 7329 | if (SvCUR(PL_lex_stuff)) { |
8127e0e3 | 7330 | int warned = 0; |
3280af22 | 7331 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 7332 | while (len) { |
d4c19fe8 AL |
7333 | for (; isSPACE(*d) && len; --len, ++d) |
7334 | /**/; | |
8127e0e3 | 7335 | if (len) { |
d4c19fe8 | 7336 | SV *sv; |
f54cb97a | 7337 | const char *b = d; |
e476b1b5 | 7338 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
7339 | for (; !isSPACE(*d) && len; --len, ++d) { |
7340 | if (*d == ',') { | |
9014280d | 7341 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7342 | "Possible attempt to separate words with commas"); |
7343 | ++warned; | |
7344 | } | |
7345 | else if (*d == '#') { | |
9014280d | 7346 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7347 | "Possible attempt to put comments in qw() list"); |
7348 | ++warned; | |
7349 | } | |
7350 | } | |
7351 | } | |
7352 | else { | |
d4c19fe8 AL |
7353 | for (; !isSPACE(*d) && len; --len, ++d) |
7354 | /**/; | |
8127e0e3 | 7355 | } |
740cce10 | 7356 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 7357 | words = append_elem(OP_LIST, words, |
7948272d | 7358 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 7359 | } |
7360 | } | |
7361 | } | |
ea25a9b2 Z |
7362 | if (!words) |
7363 | words = newNULLLIST(); | |
37fd879b | 7364 | if (PL_lex_stuff) { |
8127e0e3 | 7365 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 7366 | PL_lex_stuff = NULL; |
37fd879b | 7367 | } |
ea25a9b2 Z |
7368 | PL_expect = XOPERATOR; |
7369 | pl_yylval.opval = sawparens(words); | |
7370 | TOKEN(QWLIST); | |
7371 | } | |
8990e307 | 7372 | |
79072805 | 7373 | case KEY_qq: |
5db06880 | 7374 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7375 | if (!s) |
d4c19fe8 | 7376 | missingterm(NULL); |
6154021b | 7377 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 7378 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 7379 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
7380 | TERM(sublex_start()); |
7381 | ||
8782bef2 GB |
7382 | case KEY_qr: |
7383 | s = scan_pat(s,OP_QR); | |
7384 | TERM(sublex_start()); | |
7385 | ||
79072805 | 7386 | case KEY_qx: |
5db06880 | 7387 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7388 | if (!s) |
d4c19fe8 | 7389 | missingterm(NULL); |
9b201d7d | 7390 | readpipe_override(); |
79072805 LW |
7391 | TERM(sublex_start()); |
7392 | ||
7393 | case KEY_return: | |
7394 | OLDLOP(OP_RETURN); | |
7395 | ||
7396 | case KEY_require: | |
29595ff2 | 7397 | s = SKIPSPACE1(s); |
e759cc13 RGS |
7398 | if (isDIGIT(*s)) { |
7399 | s = force_version(s, FALSE); | |
a7cb1f99 | 7400 | } |
e759cc13 RGS |
7401 | else if (*s != 'v' || !isDIGIT(s[1]) |
7402 | || (s = force_version(s, TRUE), *s == 'v')) | |
7403 | { | |
a7cb1f99 GS |
7404 | *PL_tokenbuf = '\0'; |
7405 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 7406 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 7407 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
7408 | else if (*s == '<') |
7409 | yyerror("<> should be quotes"); | |
7410 | } | |
a72a1c8b RGS |
7411 | if (orig_keyword == KEY_require) { |
7412 | orig_keyword = 0; | |
6154021b | 7413 | pl_yylval.ival = 1; |
a72a1c8b RGS |
7414 | } |
7415 | else | |
6154021b | 7416 | pl_yylval.ival = 0; |
a72a1c8b RGS |
7417 | PL_expect = XTERM; |
7418 | PL_bufptr = s; | |
7419 | PL_last_uni = PL_oldbufptr; | |
7420 | PL_last_lop_op = OP_REQUIRE; | |
7421 | s = skipspace(s); | |
7422 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
7423 | |
7424 | case KEY_reset: | |
7425 | UNI(OP_RESET); | |
7426 | ||
7427 | case KEY_redo: | |
a0d0e21e | 7428 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7429 | LOOPX(OP_REDO); |
7430 | ||
7431 | case KEY_rename: | |
a0d0e21e | 7432 | LOP(OP_RENAME,XTERM); |
79072805 LW |
7433 | |
7434 | case KEY_rand: | |
7435 | UNI(OP_RAND); | |
7436 | ||
7437 | case KEY_rmdir: | |
7438 | UNI(OP_RMDIR); | |
7439 | ||
7440 | case KEY_rindex: | |
a0d0e21e | 7441 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
7442 | |
7443 | case KEY_read: | |
a0d0e21e | 7444 | LOP(OP_READ,XTERM); |
79072805 LW |
7445 | |
7446 | case KEY_readdir: | |
7447 | UNI(OP_READDIR); | |
7448 | ||
93a17b20 | 7449 | case KEY_readline: |
6f33ba73 | 7450 | UNIDOR(OP_READLINE); |
93a17b20 LW |
7451 | |
7452 | case KEY_readpipe: | |
0858480c | 7453 | UNIDOR(OP_BACKTICK); |
93a17b20 | 7454 | |
79072805 LW |
7455 | case KEY_rewinddir: |
7456 | UNI(OP_REWINDDIR); | |
7457 | ||
7458 | case KEY_recv: | |
a0d0e21e | 7459 | LOP(OP_RECV,XTERM); |
79072805 LW |
7460 | |
7461 | case KEY_reverse: | |
a0d0e21e | 7462 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
7463 | |
7464 | case KEY_readlink: | |
6f33ba73 | 7465 | UNIDOR(OP_READLINK); |
79072805 LW |
7466 | |
7467 | case KEY_ref: | |
7468 | UNI(OP_REF); | |
7469 | ||
7470 | case KEY_s: | |
7471 | s = scan_subst(s); | |
6154021b | 7472 | if (pl_yylval.opval) |
79072805 LW |
7473 | TERM(sublex_start()); |
7474 | else | |
7475 | TOKEN(1); /* force error */ | |
7476 | ||
0d863452 RH |
7477 | case KEY_say: |
7478 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
7479 | LOP(OP_SAY,XREF); | |
7480 | ||
a0d0e21e LW |
7481 | case KEY_chomp: |
7482 | UNI(OP_CHOMP); | |
4e553d73 | 7483 | |
79072805 LW |
7484 | case KEY_scalar: |
7485 | UNI(OP_SCALAR); | |
7486 | ||
7487 | case KEY_select: | |
a0d0e21e | 7488 | LOP(OP_SELECT,XTERM); |
79072805 LW |
7489 | |
7490 | case KEY_seek: | |
a0d0e21e | 7491 | LOP(OP_SEEK,XTERM); |
79072805 LW |
7492 | |
7493 | case KEY_semctl: | |
a0d0e21e | 7494 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
7495 | |
7496 | case KEY_semget: | |
a0d0e21e | 7497 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
7498 | |
7499 | case KEY_semop: | |
a0d0e21e | 7500 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
7501 | |
7502 | case KEY_send: | |
a0d0e21e | 7503 | LOP(OP_SEND,XTERM); |
79072805 LW |
7504 | |
7505 | case KEY_setpgrp: | |
a0d0e21e | 7506 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
7507 | |
7508 | case KEY_setpriority: | |
a0d0e21e | 7509 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
7510 | |
7511 | case KEY_sethostent: | |
ff68c719 | 7512 | UNI(OP_SHOSTENT); |
79072805 LW |
7513 | |
7514 | case KEY_setnetent: | |
ff68c719 | 7515 | UNI(OP_SNETENT); |
79072805 LW |
7516 | |
7517 | case KEY_setservent: | |
ff68c719 | 7518 | UNI(OP_SSERVENT); |
79072805 LW |
7519 | |
7520 | case KEY_setprotoent: | |
ff68c719 | 7521 | UNI(OP_SPROTOENT); |
79072805 LW |
7522 | |
7523 | case KEY_setpwent: | |
7524 | FUN0(OP_SPWENT); | |
7525 | ||
7526 | case KEY_setgrent: | |
7527 | FUN0(OP_SGRENT); | |
7528 | ||
7529 | case KEY_seekdir: | |
a0d0e21e | 7530 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
7531 | |
7532 | case KEY_setsockopt: | |
a0d0e21e | 7533 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
7534 | |
7535 | case KEY_shift: | |
6f33ba73 | 7536 | UNIDOR(OP_SHIFT); |
79072805 LW |
7537 | |
7538 | case KEY_shmctl: | |
a0d0e21e | 7539 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
7540 | |
7541 | case KEY_shmget: | |
a0d0e21e | 7542 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
7543 | |
7544 | case KEY_shmread: | |
a0d0e21e | 7545 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
7546 | |
7547 | case KEY_shmwrite: | |
a0d0e21e | 7548 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
7549 | |
7550 | case KEY_shutdown: | |
a0d0e21e | 7551 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
7552 | |
7553 | case KEY_sin: | |
7554 | UNI(OP_SIN); | |
7555 | ||
7556 | case KEY_sleep: | |
7557 | UNI(OP_SLEEP); | |
7558 | ||
7559 | case KEY_socket: | |
a0d0e21e | 7560 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
7561 | |
7562 | case KEY_socketpair: | |
a0d0e21e | 7563 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
7564 | |
7565 | case KEY_sort: | |
3280af22 | 7566 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 7567 | s = SKIPSPACE1(s); |
79072805 | 7568 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 7569 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 7570 | PL_expect = XTERM; |
15f0808c | 7571 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 7572 | LOP(OP_SORT,XREF); |
79072805 LW |
7573 | |
7574 | case KEY_split: | |
a0d0e21e | 7575 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
7576 | |
7577 | case KEY_sprintf: | |
a0d0e21e | 7578 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
7579 | |
7580 | case KEY_splice: | |
a0d0e21e | 7581 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
7582 | |
7583 | case KEY_sqrt: | |
7584 | UNI(OP_SQRT); | |
7585 | ||
7586 | case KEY_srand: | |
7587 | UNI(OP_SRAND); | |
7588 | ||
7589 | case KEY_stat: | |
7590 | UNI(OP_STAT); | |
7591 | ||
7592 | case KEY_study: | |
79072805 LW |
7593 | UNI(OP_STUDY); |
7594 | ||
7595 | case KEY_substr: | |
a0d0e21e | 7596 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
7597 | |
7598 | case KEY_format: | |
7599 | case KEY_sub: | |
93a17b20 | 7600 | really_sub: |
09bef843 | 7601 | { |
3280af22 | 7602 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 7603 | SSize_t tboffset = 0; |
09bef843 | 7604 | expectation attrful; |
28cc6278 | 7605 | bool have_name, have_proto; |
f54cb97a | 7606 | const int key = tmp; |
09bef843 | 7607 | |
5db06880 NC |
7608 | #ifdef PERL_MAD |
7609 | SV *tmpwhite = 0; | |
7610 | ||
cd81e915 | 7611 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 7612 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 7613 | PL_thistoken = 0; |
5db06880 NC |
7614 | |
7615 | d = s; | |
7616 | s = SKIPSPACE2(s,tmpwhite); | |
7617 | #else | |
09bef843 | 7618 | s = skipspace(s); |
5db06880 | 7619 | #endif |
09bef843 | 7620 | |
7e2040f0 | 7621 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
7622 | (*s == ':' && s[1] == ':')) |
7623 | { | |
5db06880 | 7624 | #ifdef PERL_MAD |
4f61fd4b | 7625 | SV *nametoke = NULL; |
5db06880 NC |
7626 | #endif |
7627 | ||
09bef843 SB |
7628 | PL_expect = XBLOCK; |
7629 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
7630 | /* remember buffer pos'n for later force_word */ |
7631 | tboffset = s - PL_oldbufptr; | |
09bef843 | 7632 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
7633 | #ifdef PERL_MAD |
7634 | if (PL_madskills) | |
7635 | nametoke = newSVpvn(s, d - s); | |
7636 | #endif | |
6502358f NC |
7637 | if (memchr(tmpbuf, ':', len)) |
7638 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
7639 | else { |
7640 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 7641 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
7642 | sv_catpvn(PL_subname,tmpbuf,len); |
7643 | } | |
09bef843 | 7644 | have_name = TRUE; |
5db06880 NC |
7645 | |
7646 | #ifdef PERL_MAD | |
7647 | ||
7648 | start_force(0); | |
7649 | CURMAD('X', nametoke); | |
7650 | CURMAD('_', tmpwhite); | |
7651 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
7652 | FALSE, TRUE, TRUE); | |
7653 | ||
7654 | s = SKIPSPACE2(d,tmpwhite); | |
7655 | #else | |
7656 | s = skipspace(d); | |
7657 | #endif | |
09bef843 | 7658 | } |
463ee0b2 | 7659 | else { |
09bef843 SB |
7660 | if (key == KEY_my) |
7661 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
7662 | PL_expect = XTERMBLOCK; | |
7663 | attrful = XATTRTERM; | |
76f68e9b | 7664 | sv_setpvs(PL_subname,"?"); |
09bef843 | 7665 | have_name = FALSE; |
463ee0b2 | 7666 | } |
4633a7c4 | 7667 | |
09bef843 SB |
7668 | if (key == KEY_format) { |
7669 | if (*s == '=') | |
7670 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 7671 | #ifdef PERL_MAD |
cd81e915 | 7672 | PL_thistoken = subtoken; |
5db06880 NC |
7673 | s = d; |
7674 | #else | |
09bef843 | 7675 | if (have_name) |
b1b65b59 JH |
7676 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7677 | FALSE, TRUE, TRUE); | |
5db06880 | 7678 | #endif |
09bef843 SB |
7679 | OPERATOR(FORMAT); |
7680 | } | |
79072805 | 7681 | |
09bef843 SB |
7682 | /* Look for a prototype */ |
7683 | if (*s == '(') { | |
d9f2850e RGS |
7684 | char *p; |
7685 | bool bad_proto = FALSE; | |
9e8d7757 RB |
7686 | bool in_brackets = FALSE; |
7687 | char greedy_proto = ' '; | |
7688 | bool proto_after_greedy_proto = FALSE; | |
7689 | bool must_be_last = FALSE; | |
7690 | bool underscore = FALSE; | |
aef2a98a | 7691 | bool seen_underscore = FALSE; |
197afce1 | 7692 | const bool warnillegalproto = ckWARN(WARN_ILLEGALPROTO); |
09bef843 | 7693 | |
5db06880 | 7694 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 7695 | if (!s) |
09bef843 | 7696 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 7697 | /* strip spaces and check for bad characters */ |
09bef843 SB |
7698 | d = SvPVX(PL_lex_stuff); |
7699 | tmp = 0; | |
d9f2850e RGS |
7700 | for (p = d; *p; ++p) { |
7701 | if (!isSPACE(*p)) { | |
7702 | d[tmp++] = *p; | |
9e8d7757 | 7703 | |
197afce1 | 7704 | if (warnillegalproto) { |
9e8d7757 RB |
7705 | if (must_be_last) |
7706 | proto_after_greedy_proto = TRUE; | |
7707 | if (!strchr("$@%*;[]&\\_", *p)) { | |
7708 | bad_proto = TRUE; | |
7709 | } | |
7710 | else { | |
7711 | if ( underscore ) { | |
7712 | if ( *p != ';' ) | |
7713 | bad_proto = TRUE; | |
7714 | underscore = FALSE; | |
7715 | } | |
7716 | if ( *p == '[' ) { | |
7717 | in_brackets = TRUE; | |
7718 | } | |
7719 | else if ( *p == ']' ) { | |
7720 | in_brackets = FALSE; | |
7721 | } | |
7722 | else if ( (*p == '@' || *p == '%') && | |
7723 | ( tmp < 2 || d[tmp-2] != '\\' ) && | |
7724 | !in_brackets ) { | |
7725 | must_be_last = TRUE; | |
7726 | greedy_proto = *p; | |
7727 | } | |
7728 | else if ( *p == '_' ) { | |
aef2a98a | 7729 | underscore = seen_underscore = TRUE; |
9e8d7757 RB |
7730 | } |
7731 | } | |
7732 | } | |
d37a9538 | 7733 | } |
09bef843 | 7734 | } |
d9f2850e | 7735 | d[tmp] = '\0'; |
9e8d7757 | 7736 | if (proto_after_greedy_proto) |
197afce1 | 7737 | Perl_warner(aTHX_ packWARN(WARN_ILLEGALPROTO), |
9e8d7757 RB |
7738 | "Prototype after '%c' for %"SVf" : %s", |
7739 | greedy_proto, SVfARG(PL_subname), d); | |
d9f2850e | 7740 | if (bad_proto) |
197afce1 | 7741 | Perl_warner(aTHX_ packWARN(WARN_ILLEGALPROTO), |
aef2a98a RGS |
7742 | "Illegal character %sin prototype for %"SVf" : %s", |
7743 | seen_underscore ? "after '_' " : "", | |
be2597df | 7744 | SVfARG(PL_subname), d); |
b162af07 | 7745 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 7746 | have_proto = TRUE; |
68dc0745 | 7747 | |
5db06880 NC |
7748 | #ifdef PERL_MAD |
7749 | start_force(0); | |
cd81e915 | 7750 | CURMAD('q', PL_thisopen); |
5db06880 | 7751 | CURMAD('_', tmpwhite); |
cd81e915 NC |
7752 | CURMAD('=', PL_thisstuff); |
7753 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
7754 | NEXTVAL_NEXTTOKE.opval = |
7755 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 7756 | PL_lex_stuff = NULL; |
5db06880 NC |
7757 | force_next(THING); |
7758 | ||
7759 | s = SKIPSPACE2(s,tmpwhite); | |
7760 | #else | |
09bef843 | 7761 | s = skipspace(s); |
5db06880 | 7762 | #endif |
4633a7c4 | 7763 | } |
09bef843 SB |
7764 | else |
7765 | have_proto = FALSE; | |
7766 | ||
7767 | if (*s == ':' && s[1] != ':') | |
7768 | PL_expect = attrful; | |
8e742a20 MHM |
7769 | else if (*s != '{' && key == KEY_sub) { |
7770 | if (!have_name) | |
7771 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
fd909433 | 7772 | else if (*s != ';' && *s != '}') |
be2597df | 7773 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 7774 | } |
09bef843 | 7775 | |
5db06880 NC |
7776 | #ifdef PERL_MAD |
7777 | start_force(0); | |
7778 | if (tmpwhite) { | |
7779 | if (PL_madskills) | |
6b29d1f5 | 7780 | curmad('^', newSVpvs("")); |
5db06880 NC |
7781 | CURMAD('_', tmpwhite); |
7782 | } | |
7783 | force_next(0); | |
7784 | ||
cd81e915 | 7785 | PL_thistoken = subtoken; |
5db06880 | 7786 | #else |
09bef843 | 7787 | if (have_proto) { |
9ded7720 | 7788 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 7789 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 7790 | PL_lex_stuff = NULL; |
09bef843 | 7791 | force_next(THING); |
68dc0745 | 7792 | } |
5db06880 | 7793 | #endif |
09bef843 | 7794 | if (!have_name) { |
49a54bbe NC |
7795 | if (PL_curstash) |
7796 | sv_setpvs(PL_subname, "__ANON__"); | |
7797 | else | |
7798 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 7799 | TOKEN(ANONSUB); |
4633a7c4 | 7800 | } |
5db06880 | 7801 | #ifndef PERL_MAD |
b1b65b59 JH |
7802 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7803 | FALSE, TRUE, TRUE); | |
5db06880 | 7804 | #endif |
09bef843 SB |
7805 | if (key == KEY_my) |
7806 | TOKEN(MYSUB); | |
7807 | TOKEN(SUB); | |
4633a7c4 | 7808 | } |
79072805 LW |
7809 | |
7810 | case KEY_system: | |
a0d0e21e | 7811 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
7812 | |
7813 | case KEY_symlink: | |
a0d0e21e | 7814 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
7815 | |
7816 | case KEY_syscall: | |
a0d0e21e | 7817 | LOP(OP_SYSCALL,XTERM); |
79072805 | 7818 | |
c07a80fd | 7819 | case KEY_sysopen: |
7820 | LOP(OP_SYSOPEN,XTERM); | |
7821 | ||
137443ea | 7822 | case KEY_sysseek: |
7823 | LOP(OP_SYSSEEK,XTERM); | |
7824 | ||
79072805 | 7825 | case KEY_sysread: |
a0d0e21e | 7826 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
7827 | |
7828 | case KEY_syswrite: | |
a0d0e21e | 7829 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
7830 | |
7831 | case KEY_tr: | |
7832 | s = scan_trans(s); | |
7833 | TERM(sublex_start()); | |
7834 | ||
7835 | case KEY_tell: | |
7836 | UNI(OP_TELL); | |
7837 | ||
7838 | case KEY_telldir: | |
7839 | UNI(OP_TELLDIR); | |
7840 | ||
463ee0b2 | 7841 | case KEY_tie: |
a0d0e21e | 7842 | LOP(OP_TIE,XTERM); |
463ee0b2 | 7843 | |
c07a80fd | 7844 | case KEY_tied: |
7845 | UNI(OP_TIED); | |
7846 | ||
79072805 LW |
7847 | case KEY_time: |
7848 | FUN0(OP_TIME); | |
7849 | ||
7850 | case KEY_times: | |
7851 | FUN0(OP_TMS); | |
7852 | ||
7853 | case KEY_truncate: | |
a0d0e21e | 7854 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
7855 | |
7856 | case KEY_uc: | |
7857 | UNI(OP_UC); | |
7858 | ||
7859 | case KEY_ucfirst: | |
7860 | UNI(OP_UCFIRST); | |
7861 | ||
463ee0b2 LW |
7862 | case KEY_untie: |
7863 | UNI(OP_UNTIE); | |
7864 | ||
79072805 | 7865 | case KEY_until: |
6154021b | 7866 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7867 | OPERATOR(UNTIL); |
7868 | ||
7869 | case KEY_unless: | |
6154021b | 7870 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7871 | OPERATOR(UNLESS); |
7872 | ||
7873 | case KEY_unlink: | |
a0d0e21e | 7874 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
7875 | |
7876 | case KEY_undef: | |
6f33ba73 | 7877 | UNIDOR(OP_UNDEF); |
79072805 LW |
7878 | |
7879 | case KEY_unpack: | |
a0d0e21e | 7880 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
7881 | |
7882 | case KEY_utime: | |
a0d0e21e | 7883 | LOP(OP_UTIME,XTERM); |
79072805 LW |
7884 | |
7885 | case KEY_umask: | |
6f33ba73 | 7886 | UNIDOR(OP_UMASK); |
79072805 LW |
7887 | |
7888 | case KEY_unshift: | |
a0d0e21e LW |
7889 | LOP(OP_UNSHIFT,XTERM); |
7890 | ||
7891 | case KEY_use: | |
468aa647 | 7892 | s = tokenize_use(1, s); |
a0d0e21e | 7893 | OPERATOR(USE); |
79072805 LW |
7894 | |
7895 | case KEY_values: | |
7896 | UNI(OP_VALUES); | |
7897 | ||
7898 | case KEY_vec: | |
a0d0e21e | 7899 | LOP(OP_VEC,XTERM); |
79072805 | 7900 | |
0d863452 | 7901 | case KEY_when: |
6154021b | 7902 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
7903 | OPERATOR(WHEN); |
7904 | ||
79072805 | 7905 | case KEY_while: |
6154021b | 7906 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7907 | OPERATOR(WHILE); |
7908 | ||
7909 | case KEY_warn: | |
3280af22 | 7910 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 7911 | LOP(OP_WARN,XTERM); |
79072805 LW |
7912 | |
7913 | case KEY_wait: | |
7914 | FUN0(OP_WAIT); | |
7915 | ||
7916 | case KEY_waitpid: | |
a0d0e21e | 7917 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
7918 | |
7919 | case KEY_wantarray: | |
7920 | FUN0(OP_WANTARRAY); | |
7921 | ||
7922 | case KEY_write: | |
9d116dd7 JH |
7923 | #ifdef EBCDIC |
7924 | { | |
df3728a2 JH |
7925 | char ctl_l[2]; |
7926 | ctl_l[0] = toCTRL('L'); | |
7927 | ctl_l[1] = '\0'; | |
fafc274c | 7928 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
7929 | } |
7930 | #else | |
fafc274c NC |
7931 | /* Make sure $^L is defined */ |
7932 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 7933 | #endif |
79072805 LW |
7934 | UNI(OP_ENTERWRITE); |
7935 | ||
7936 | case KEY_x: | |
3280af22 | 7937 | if (PL_expect == XOPERATOR) |
79072805 LW |
7938 | Mop(OP_REPEAT); |
7939 | check_uni(); | |
7940 | goto just_a_word; | |
7941 | ||
a0d0e21e | 7942 | case KEY_xor: |
6154021b | 7943 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
7944 | OPERATOR(OROP); |
7945 | ||
79072805 LW |
7946 | case KEY_y: |
7947 | s = scan_trans(s); | |
7948 | TERM(sublex_start()); | |
7949 | } | |
49dc05e3 | 7950 | }} |
79072805 | 7951 | } |
bf4acbe4 GS |
7952 | #ifdef __SC__ |
7953 | #pragma segment Main | |
7954 | #endif | |
79072805 | 7955 | |
e930465f JH |
7956 | static int |
7957 | S_pending_ident(pTHX) | |
8eceec63 | 7958 | { |
97aff369 | 7959 | dVAR; |
8eceec63 | 7960 | register char *d; |
bbd11bfc | 7961 | PADOFFSET tmp = 0; |
8eceec63 SC |
7962 | /* pit holds the identifier we read and pending_ident is reset */ |
7963 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
7964 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
7965 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 7966 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
7967 | PL_pending_ident = 0; |
7968 | ||
cd81e915 | 7969 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 7970 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 7971 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
7972 | |
7973 | /* if we're in a my(), we can't allow dynamics here. | |
7974 | $foo'bar has already been turned into $foo::bar, so | |
7975 | just check for colons. | |
7976 | ||
7977 | if it's a legal name, the OP is a PADANY. | |
7978 | */ | |
7979 | if (PL_in_my) { | |
7980 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 7981 | if (has_colon) |
8eceec63 SC |
7982 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
7983 | "variable %s in \"our\"", | |
7984 | PL_tokenbuf)); | |
d6447115 | 7985 | tmp = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7986 | } |
7987 | else { | |
9bde8eb0 | 7988 | if (has_colon) |
952306ac RGS |
7989 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
7990 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 7991 | |
6154021b | 7992 | pl_yylval.opval = newOP(OP_PADANY, 0); |
d6447115 | 7993 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7994 | return PRIVATEREF; |
7995 | } | |
7996 | } | |
7997 | ||
7998 | /* | |
7999 | build the ops for accesses to a my() variable. | |
8000 | ||
8001 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
8002 | then used in a comparison. This catches most, but not | |
8003 | all cases. For instance, it catches | |
8004 | sort { my($a); $a <=> $b } | |
8005 | but not | |
8006 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
8007 | (although why you'd do that is anyone's guess). | |
8008 | */ | |
8009 | ||
9bde8eb0 | 8010 | if (!has_colon) { |
8716503d | 8011 | if (!PL_in_my) |
f8f98e0a | 8012 | tmp = pad_findmy(PL_tokenbuf, tokenbuf_len, 0); |
8716503d | 8013 | if (tmp != NOT_IN_PAD) { |
8eceec63 | 8014 | /* might be an "our" variable" */ |
00b1698f | 8015 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 8016 | /* build ops for a bareword */ |
b64e5050 AL |
8017 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
8018 | HEK * const stashname = HvNAME_HEK(stash); | |
8019 | SV * const sym = newSVhek(stashname); | |
396482e1 | 8020 | sv_catpvs(sym, "::"); |
9bde8eb0 | 8021 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
8022 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
8023 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 8024 | gv_fetchsv(sym, |
8eceec63 SC |
8025 | (PL_in_eval |
8026 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 8027 | : GV_ADDMULTI |
8eceec63 SC |
8028 | ), |
8029 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
8030 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
8031 | : SVt_PVHV)); | |
8032 | return WORD; | |
8033 | } | |
8034 | ||
8035 | /* if it's a sort block and they're naming $a or $b */ | |
8036 | if (PL_last_lop_op == OP_SORT && | |
8037 | PL_tokenbuf[0] == '$' && | |
8038 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
8039 | && !PL_tokenbuf[2]) | |
8040 | { | |
8041 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
8042 | d < PL_bufend && *d != '\n'; | |
8043 | d++) | |
8044 | { | |
8045 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
8046 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
8047 | PL_tokenbuf); | |
8048 | } | |
8049 | } | |
8050 | } | |
8051 | ||
6154021b RGS |
8052 | pl_yylval.opval = newOP(OP_PADANY, 0); |
8053 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
8054 | return PRIVATEREF; |
8055 | } | |
8056 | } | |
8057 | ||
8058 | /* | |
8059 | Whine if they've said @foo in a doublequoted string, | |
8060 | and @foo isn't a variable we can find in the symbol | |
8061 | table. | |
8062 | */ | |
d824713b NC |
8063 | if (ckWARN(WARN_AMBIGUOUS) && |
8064 | pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
8065 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
8066 | SVt_PVAV); | |
8eceec63 | 8067 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
8068 | /* DO NOT warn for @- and @+ */ |
8069 | && !( PL_tokenbuf[2] == '\0' && | |
8070 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
8071 | ) | |
8eceec63 SC |
8072 | { |
8073 | /* Downgraded from fatal to warning 20000522 mjd */ | |
d824713b NC |
8074 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8075 | "Possible unintended interpolation of %s in string", | |
8076 | PL_tokenbuf); | |
8eceec63 SC |
8077 | } |
8078 | } | |
8079 | ||
8080 | /* build ops for a bareword */ | |
6154021b | 8081 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 8082 | tokenbuf_len - 1)); |
6154021b | 8083 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
223f0fb7 NC |
8084 | gv_fetchpvn_flags(PL_tokenbuf+1, tokenbuf_len - 1, |
8085 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD, | |
8086 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
8087 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
8088 | : SVt_PVHV)); | |
8eceec63 SC |
8089 | return WORD; |
8090 | } | |
8091 | ||
4c3bbe0f MHM |
8092 | /* |
8093 | * The following code was generated by perl_keyword.pl. | |
8094 | */ | |
e2e1dd5a | 8095 | |
79072805 | 8096 | I32 |
5458a98a | 8097 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 8098 | { |
952306ac | 8099 | dVAR; |
7918f24d NC |
8100 | |
8101 | PERL_ARGS_ASSERT_KEYWORD; | |
8102 | ||
4c3bbe0f MHM |
8103 | switch (len) |
8104 | { | |
8105 | case 1: /* 5 tokens of length 1 */ | |
8106 | switch (name[0]) | |
e2e1dd5a | 8107 | { |
4c3bbe0f MHM |
8108 | case 'm': |
8109 | { /* m */ | |
8110 | return KEY_m; | |
8111 | } | |
8112 | ||
4c3bbe0f MHM |
8113 | case 'q': |
8114 | { /* q */ | |
8115 | return KEY_q; | |
8116 | } | |
8117 | ||
4c3bbe0f MHM |
8118 | case 's': |
8119 | { /* s */ | |
8120 | return KEY_s; | |
8121 | } | |
8122 | ||
4c3bbe0f MHM |
8123 | case 'x': |
8124 | { /* x */ | |
8125 | return -KEY_x; | |
8126 | } | |
8127 | ||
4c3bbe0f MHM |
8128 | case 'y': |
8129 | { /* y */ | |
8130 | return KEY_y; | |
8131 | } | |
8132 | ||
4c3bbe0f MHM |
8133 | default: |
8134 | goto unknown; | |
e2e1dd5a | 8135 | } |
4c3bbe0f MHM |
8136 | |
8137 | case 2: /* 18 tokens of length 2 */ | |
8138 | switch (name[0]) | |
e2e1dd5a | 8139 | { |
4c3bbe0f MHM |
8140 | case 'd': |
8141 | if (name[1] == 'o') | |
8142 | { /* do */ | |
8143 | return KEY_do; | |
8144 | } | |
8145 | ||
8146 | goto unknown; | |
8147 | ||
8148 | case 'e': | |
8149 | if (name[1] == 'q') | |
8150 | { /* eq */ | |
8151 | return -KEY_eq; | |
8152 | } | |
8153 | ||
8154 | goto unknown; | |
8155 | ||
8156 | case 'g': | |
8157 | switch (name[1]) | |
8158 | { | |
8159 | case 'e': | |
8160 | { /* ge */ | |
8161 | return -KEY_ge; | |
8162 | } | |
8163 | ||
4c3bbe0f MHM |
8164 | case 't': |
8165 | { /* gt */ | |
8166 | return -KEY_gt; | |
8167 | } | |
8168 | ||
4c3bbe0f MHM |
8169 | default: |
8170 | goto unknown; | |
8171 | } | |
8172 | ||
8173 | case 'i': | |
8174 | if (name[1] == 'f') | |
8175 | { /* if */ | |
8176 | return KEY_if; | |
8177 | } | |
8178 | ||
8179 | goto unknown; | |
8180 | ||
8181 | case 'l': | |
8182 | switch (name[1]) | |
8183 | { | |
8184 | case 'c': | |
8185 | { /* lc */ | |
8186 | return -KEY_lc; | |
8187 | } | |
8188 | ||
4c3bbe0f MHM |
8189 | case 'e': |
8190 | { /* le */ | |
8191 | return -KEY_le; | |
8192 | } | |
8193 | ||
4c3bbe0f MHM |
8194 | case 't': |
8195 | { /* lt */ | |
8196 | return -KEY_lt; | |
8197 | } | |
8198 | ||
4c3bbe0f MHM |
8199 | default: |
8200 | goto unknown; | |
8201 | } | |
8202 | ||
8203 | case 'm': | |
8204 | if (name[1] == 'y') | |
8205 | { /* my */ | |
8206 | return KEY_my; | |
8207 | } | |
8208 | ||
8209 | goto unknown; | |
8210 | ||
8211 | case 'n': | |
8212 | switch (name[1]) | |
8213 | { | |
8214 | case 'e': | |
8215 | { /* ne */ | |
8216 | return -KEY_ne; | |
8217 | } | |
8218 | ||
4c3bbe0f MHM |
8219 | case 'o': |
8220 | { /* no */ | |
8221 | return KEY_no; | |
8222 | } | |
8223 | ||
4c3bbe0f MHM |
8224 | default: |
8225 | goto unknown; | |
8226 | } | |
8227 | ||
8228 | case 'o': | |
8229 | if (name[1] == 'r') | |
8230 | { /* or */ | |
8231 | return -KEY_or; | |
8232 | } | |
8233 | ||
8234 | goto unknown; | |
8235 | ||
8236 | case 'q': | |
8237 | switch (name[1]) | |
8238 | { | |
8239 | case 'q': | |
8240 | { /* qq */ | |
8241 | return KEY_qq; | |
8242 | } | |
8243 | ||
4c3bbe0f MHM |
8244 | case 'r': |
8245 | { /* qr */ | |
8246 | return KEY_qr; | |
8247 | } | |
8248 | ||
4c3bbe0f MHM |
8249 | case 'w': |
8250 | { /* qw */ | |
8251 | return KEY_qw; | |
8252 | } | |
8253 | ||
4c3bbe0f MHM |
8254 | case 'x': |
8255 | { /* qx */ | |
8256 | return KEY_qx; | |
8257 | } | |
8258 | ||
4c3bbe0f MHM |
8259 | default: |
8260 | goto unknown; | |
8261 | } | |
8262 | ||
8263 | case 't': | |
8264 | if (name[1] == 'r') | |
8265 | { /* tr */ | |
8266 | return KEY_tr; | |
8267 | } | |
8268 | ||
8269 | goto unknown; | |
8270 | ||
8271 | case 'u': | |
8272 | if (name[1] == 'c') | |
8273 | { /* uc */ | |
8274 | return -KEY_uc; | |
8275 | } | |
8276 | ||
8277 | goto unknown; | |
8278 | ||
8279 | default: | |
8280 | goto unknown; | |
e2e1dd5a | 8281 | } |
4c3bbe0f | 8282 | |
0d863452 | 8283 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 8284 | switch (name[0]) |
e2e1dd5a | 8285 | { |
4c3bbe0f MHM |
8286 | case 'E': |
8287 | if (name[1] == 'N' && | |
8288 | name[2] == 'D') | |
8289 | { /* END */ | |
8290 | return KEY_END; | |
8291 | } | |
8292 | ||
8293 | goto unknown; | |
8294 | ||
8295 | case 'a': | |
8296 | switch (name[1]) | |
8297 | { | |
8298 | case 'b': | |
8299 | if (name[2] == 's') | |
8300 | { /* abs */ | |
8301 | return -KEY_abs; | |
8302 | } | |
8303 | ||
8304 | goto unknown; | |
8305 | ||
8306 | case 'n': | |
8307 | if (name[2] == 'd') | |
8308 | { /* and */ | |
8309 | return -KEY_and; | |
8310 | } | |
8311 | ||
8312 | goto unknown; | |
8313 | ||
8314 | default: | |
8315 | goto unknown; | |
8316 | } | |
8317 | ||
8318 | case 'c': | |
8319 | switch (name[1]) | |
8320 | { | |
8321 | case 'h': | |
8322 | if (name[2] == 'r') | |
8323 | { /* chr */ | |
8324 | return -KEY_chr; | |
8325 | } | |
8326 | ||
8327 | goto unknown; | |
8328 | ||
8329 | case 'm': | |
8330 | if (name[2] == 'p') | |
8331 | { /* cmp */ | |
8332 | return -KEY_cmp; | |
8333 | } | |
8334 | ||
8335 | goto unknown; | |
8336 | ||
8337 | case 'o': | |
8338 | if (name[2] == 's') | |
8339 | { /* cos */ | |
8340 | return -KEY_cos; | |
8341 | } | |
8342 | ||
8343 | goto unknown; | |
8344 | ||
8345 | default: | |
8346 | goto unknown; | |
8347 | } | |
8348 | ||
8349 | case 'd': | |
8350 | if (name[1] == 'i' && | |
8351 | name[2] == 'e') | |
8352 | { /* die */ | |
8353 | return -KEY_die; | |
8354 | } | |
8355 | ||
8356 | goto unknown; | |
8357 | ||
8358 | case 'e': | |
8359 | switch (name[1]) | |
8360 | { | |
8361 | case 'o': | |
8362 | if (name[2] == 'f') | |
8363 | { /* eof */ | |
8364 | return -KEY_eof; | |
8365 | } | |
8366 | ||
8367 | goto unknown; | |
8368 | ||
4c3bbe0f MHM |
8369 | case 'x': |
8370 | if (name[2] == 'p') | |
8371 | { /* exp */ | |
8372 | return -KEY_exp; | |
8373 | } | |
8374 | ||
8375 | goto unknown; | |
8376 | ||
8377 | default: | |
8378 | goto unknown; | |
8379 | } | |
8380 | ||
8381 | case 'f': | |
8382 | if (name[1] == 'o' && | |
8383 | name[2] == 'r') | |
8384 | { /* for */ | |
8385 | return KEY_for; | |
8386 | } | |
8387 | ||
8388 | goto unknown; | |
8389 | ||
8390 | case 'h': | |
8391 | if (name[1] == 'e' && | |
8392 | name[2] == 'x') | |
8393 | { /* hex */ | |
8394 | return -KEY_hex; | |
8395 | } | |
8396 | ||
8397 | goto unknown; | |
8398 | ||
8399 | case 'i': | |
8400 | if (name[1] == 'n' && | |
8401 | name[2] == 't') | |
8402 | { /* int */ | |
8403 | return -KEY_int; | |
8404 | } | |
8405 | ||
8406 | goto unknown; | |
8407 | ||
8408 | case 'l': | |
8409 | if (name[1] == 'o' && | |
8410 | name[2] == 'g') | |
8411 | { /* log */ | |
8412 | return -KEY_log; | |
8413 | } | |
8414 | ||
8415 | goto unknown; | |
8416 | ||
8417 | case 'm': | |
8418 | if (name[1] == 'a' && | |
8419 | name[2] == 'p') | |
8420 | { /* map */ | |
8421 | return KEY_map; | |
8422 | } | |
8423 | ||
8424 | goto unknown; | |
8425 | ||
8426 | case 'n': | |
8427 | if (name[1] == 'o' && | |
8428 | name[2] == 't') | |
8429 | { /* not */ | |
8430 | return -KEY_not; | |
8431 | } | |
8432 | ||
8433 | goto unknown; | |
8434 | ||
8435 | case 'o': | |
8436 | switch (name[1]) | |
8437 | { | |
8438 | case 'c': | |
8439 | if (name[2] == 't') | |
8440 | { /* oct */ | |
8441 | return -KEY_oct; | |
8442 | } | |
8443 | ||
8444 | goto unknown; | |
8445 | ||
8446 | case 'r': | |
8447 | if (name[2] == 'd') | |
8448 | { /* ord */ | |
8449 | return -KEY_ord; | |
8450 | } | |
8451 | ||
8452 | goto unknown; | |
8453 | ||
8454 | case 'u': | |
8455 | if (name[2] == 'r') | |
8456 | { /* our */ | |
8457 | return KEY_our; | |
8458 | } | |
8459 | ||
8460 | goto unknown; | |
8461 | ||
8462 | default: | |
8463 | goto unknown; | |
8464 | } | |
8465 | ||
8466 | case 'p': | |
8467 | if (name[1] == 'o') | |
8468 | { | |
8469 | switch (name[2]) | |
8470 | { | |
8471 | case 'p': | |
8472 | { /* pop */ | |
8473 | return -KEY_pop; | |
8474 | } | |
8475 | ||
4c3bbe0f MHM |
8476 | case 's': |
8477 | { /* pos */ | |
8478 | return KEY_pos; | |
8479 | } | |
8480 | ||
4c3bbe0f MHM |
8481 | default: |
8482 | goto unknown; | |
8483 | } | |
8484 | } | |
8485 | ||
8486 | goto unknown; | |
8487 | ||
8488 | case 'r': | |
8489 | if (name[1] == 'e' && | |
8490 | name[2] == 'f') | |
8491 | { /* ref */ | |
8492 | return -KEY_ref; | |
8493 | } | |
8494 | ||
8495 | goto unknown; | |
8496 | ||
8497 | case 's': | |
8498 | switch (name[1]) | |
8499 | { | |
0d863452 RH |
8500 | case 'a': |
8501 | if (name[2] == 'y') | |
8502 | { /* say */ | |
e3e804c9 | 8503 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
8504 | } |
8505 | ||
8506 | goto unknown; | |
8507 | ||
4c3bbe0f MHM |
8508 | case 'i': |
8509 | if (name[2] == 'n') | |
8510 | { /* sin */ | |
8511 | return -KEY_sin; | |
8512 | } | |
8513 | ||
8514 | goto unknown; | |
8515 | ||
8516 | case 'u': | |
8517 | if (name[2] == 'b') | |
8518 | { /* sub */ | |
8519 | return KEY_sub; | |
8520 | } | |
8521 | ||
8522 | goto unknown; | |
8523 | ||
8524 | default: | |
8525 | goto unknown; | |
8526 | } | |
8527 | ||
8528 | case 't': | |
8529 | if (name[1] == 'i' && | |
8530 | name[2] == 'e') | |
8531 | { /* tie */ | |
1db4d195 | 8532 | return -KEY_tie; |
4c3bbe0f MHM |
8533 | } |
8534 | ||
8535 | goto unknown; | |
8536 | ||
8537 | case 'u': | |
8538 | if (name[1] == 's' && | |
8539 | name[2] == 'e') | |
8540 | { /* use */ | |
8541 | return KEY_use; | |
8542 | } | |
8543 | ||
8544 | goto unknown; | |
8545 | ||
8546 | case 'v': | |
8547 | if (name[1] == 'e' && | |
8548 | name[2] == 'c') | |
8549 | { /* vec */ | |
8550 | return -KEY_vec; | |
8551 | } | |
8552 | ||
8553 | goto unknown; | |
8554 | ||
8555 | case 'x': | |
8556 | if (name[1] == 'o' && | |
8557 | name[2] == 'r') | |
8558 | { /* xor */ | |
8559 | return -KEY_xor; | |
8560 | } | |
8561 | ||
8562 | goto unknown; | |
8563 | ||
8564 | default: | |
8565 | goto unknown; | |
e2e1dd5a | 8566 | } |
4c3bbe0f | 8567 | |
0d863452 | 8568 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 8569 | switch (name[0]) |
e2e1dd5a | 8570 | { |
4c3bbe0f MHM |
8571 | case 'C': |
8572 | if (name[1] == 'O' && | |
8573 | name[2] == 'R' && | |
8574 | name[3] == 'E') | |
8575 | { /* CORE */ | |
8576 | return -KEY_CORE; | |
8577 | } | |
8578 | ||
8579 | goto unknown; | |
8580 | ||
8581 | case 'I': | |
8582 | if (name[1] == 'N' && | |
8583 | name[2] == 'I' && | |
8584 | name[3] == 'T') | |
8585 | { /* INIT */ | |
8586 | return KEY_INIT; | |
8587 | } | |
8588 | ||
8589 | goto unknown; | |
8590 | ||
8591 | case 'b': | |
8592 | if (name[1] == 'i' && | |
8593 | name[2] == 'n' && | |
8594 | name[3] == 'd') | |
8595 | { /* bind */ | |
8596 | return -KEY_bind; | |
8597 | } | |
8598 | ||
8599 | goto unknown; | |
8600 | ||
8601 | case 'c': | |
8602 | if (name[1] == 'h' && | |
8603 | name[2] == 'o' && | |
8604 | name[3] == 'p') | |
8605 | { /* chop */ | |
8606 | return -KEY_chop; | |
8607 | } | |
8608 | ||
8609 | goto unknown; | |
8610 | ||
8611 | case 'd': | |
8612 | if (name[1] == 'u' && | |
8613 | name[2] == 'm' && | |
8614 | name[3] == 'p') | |
8615 | { /* dump */ | |
8616 | return -KEY_dump; | |
8617 | } | |
8618 | ||
8619 | goto unknown; | |
8620 | ||
8621 | case 'e': | |
8622 | switch (name[1]) | |
8623 | { | |
8624 | case 'a': | |
8625 | if (name[2] == 'c' && | |
8626 | name[3] == 'h') | |
8627 | { /* each */ | |
8628 | return -KEY_each; | |
8629 | } | |
8630 | ||
8631 | goto unknown; | |
8632 | ||
8633 | case 'l': | |
8634 | if (name[2] == 's' && | |
8635 | name[3] == 'e') | |
8636 | { /* else */ | |
8637 | return KEY_else; | |
8638 | } | |
8639 | ||
8640 | goto unknown; | |
8641 | ||
8642 | case 'v': | |
8643 | if (name[2] == 'a' && | |
8644 | name[3] == 'l') | |
8645 | { /* eval */ | |
8646 | return KEY_eval; | |
8647 | } | |
8648 | ||
8649 | goto unknown; | |
8650 | ||
8651 | case 'x': | |
8652 | switch (name[2]) | |
8653 | { | |
8654 | case 'e': | |
8655 | if (name[3] == 'c') | |
8656 | { /* exec */ | |
8657 | return -KEY_exec; | |
8658 | } | |
8659 | ||
8660 | goto unknown; | |
8661 | ||
8662 | case 'i': | |
8663 | if (name[3] == 't') | |
8664 | { /* exit */ | |
8665 | return -KEY_exit; | |
8666 | } | |
8667 | ||
8668 | goto unknown; | |
8669 | ||
8670 | default: | |
8671 | goto unknown; | |
8672 | } | |
8673 | ||
8674 | default: | |
8675 | goto unknown; | |
8676 | } | |
8677 | ||
8678 | case 'f': | |
8679 | if (name[1] == 'o' && | |
8680 | name[2] == 'r' && | |
8681 | name[3] == 'k') | |
8682 | { /* fork */ | |
8683 | return -KEY_fork; | |
8684 | } | |
8685 | ||
8686 | goto unknown; | |
8687 | ||
8688 | case 'g': | |
8689 | switch (name[1]) | |
8690 | { | |
8691 | case 'e': | |
8692 | if (name[2] == 't' && | |
8693 | name[3] == 'c') | |
8694 | { /* getc */ | |
8695 | return -KEY_getc; | |
8696 | } | |
8697 | ||
8698 | goto unknown; | |
8699 | ||
8700 | case 'l': | |
8701 | if (name[2] == 'o' && | |
8702 | name[3] == 'b') | |
8703 | { /* glob */ | |
8704 | return KEY_glob; | |
8705 | } | |
8706 | ||
8707 | goto unknown; | |
8708 | ||
8709 | case 'o': | |
8710 | if (name[2] == 't' && | |
8711 | name[3] == 'o') | |
8712 | { /* goto */ | |
8713 | return KEY_goto; | |
8714 | } | |
8715 | ||
8716 | goto unknown; | |
8717 | ||
8718 | case 'r': | |
8719 | if (name[2] == 'e' && | |
8720 | name[3] == 'p') | |
8721 | { /* grep */ | |
8722 | return KEY_grep; | |
8723 | } | |
8724 | ||
8725 | goto unknown; | |
8726 | ||
8727 | default: | |
8728 | goto unknown; | |
8729 | } | |
8730 | ||
8731 | case 'j': | |
8732 | if (name[1] == 'o' && | |
8733 | name[2] == 'i' && | |
8734 | name[3] == 'n') | |
8735 | { /* join */ | |
8736 | return -KEY_join; | |
8737 | } | |
8738 | ||
8739 | goto unknown; | |
8740 | ||
8741 | case 'k': | |
8742 | switch (name[1]) | |
8743 | { | |
8744 | case 'e': | |
8745 | if (name[2] == 'y' && | |
8746 | name[3] == 's') | |
8747 | { /* keys */ | |
8748 | return -KEY_keys; | |
8749 | } | |
8750 | ||
8751 | goto unknown; | |
8752 | ||
8753 | case 'i': | |
8754 | if (name[2] == 'l' && | |
8755 | name[3] == 'l') | |
8756 | { /* kill */ | |
8757 | return -KEY_kill; | |
8758 | } | |
8759 | ||
8760 | goto unknown; | |
8761 | ||
8762 | default: | |
8763 | goto unknown; | |
8764 | } | |
8765 | ||
8766 | case 'l': | |
8767 | switch (name[1]) | |
8768 | { | |
8769 | case 'a': | |
8770 | if (name[2] == 's' && | |
8771 | name[3] == 't') | |
8772 | { /* last */ | |
8773 | return KEY_last; | |
8774 | } | |
8775 | ||
8776 | goto unknown; | |
8777 | ||
8778 | case 'i': | |
8779 | if (name[2] == 'n' && | |
8780 | name[3] == 'k') | |
8781 | { /* link */ | |
8782 | return -KEY_link; | |
8783 | } | |
8784 | ||
8785 | goto unknown; | |
8786 | ||
8787 | case 'o': | |
8788 | if (name[2] == 'c' && | |
8789 | name[3] == 'k') | |
8790 | { /* lock */ | |
8791 | return -KEY_lock; | |
8792 | } | |
8793 | ||
8794 | goto unknown; | |
8795 | ||
8796 | default: | |
8797 | goto unknown; | |
8798 | } | |
8799 | ||
8800 | case 'n': | |
8801 | if (name[1] == 'e' && | |
8802 | name[2] == 'x' && | |
8803 | name[3] == 't') | |
8804 | { /* next */ | |
8805 | return KEY_next; | |
8806 | } | |
8807 | ||
8808 | goto unknown; | |
8809 | ||
8810 | case 'o': | |
8811 | if (name[1] == 'p' && | |
8812 | name[2] == 'e' && | |
8813 | name[3] == 'n') | |
8814 | { /* open */ | |
8815 | return -KEY_open; | |
8816 | } | |
8817 | ||
8818 | goto unknown; | |
8819 | ||
8820 | case 'p': | |
8821 | switch (name[1]) | |
8822 | { | |
8823 | case 'a': | |
8824 | if (name[2] == 'c' && | |
8825 | name[3] == 'k') | |
8826 | { /* pack */ | |
8827 | return -KEY_pack; | |
8828 | } | |
8829 | ||
8830 | goto unknown; | |
8831 | ||
8832 | case 'i': | |
8833 | if (name[2] == 'p' && | |
8834 | name[3] == 'e') | |
8835 | { /* pipe */ | |
8836 | return -KEY_pipe; | |
8837 | } | |
8838 | ||
8839 | goto unknown; | |
8840 | ||
8841 | case 'u': | |
8842 | if (name[2] == 's' && | |
8843 | name[3] == 'h') | |
8844 | { /* push */ | |
8845 | return -KEY_push; | |
8846 | } | |
8847 | ||
8848 | goto unknown; | |
8849 | ||
8850 | default: | |
8851 | goto unknown; | |
8852 | } | |
8853 | ||
8854 | case 'r': | |
8855 | switch (name[1]) | |
8856 | { | |
8857 | case 'a': | |
8858 | if (name[2] == 'n' && | |
8859 | name[3] == 'd') | |
8860 | { /* rand */ | |
8861 | return -KEY_rand; | |
8862 | } | |
8863 | ||
8864 | goto unknown; | |
8865 | ||
8866 | case 'e': | |
8867 | switch (name[2]) | |
8868 | { | |
8869 | case 'a': | |
8870 | if (name[3] == 'd') | |
8871 | { /* read */ | |
8872 | return -KEY_read; | |
8873 | } | |
8874 | ||
8875 | goto unknown; | |
8876 | ||
8877 | case 'c': | |
8878 | if (name[3] == 'v') | |
8879 | { /* recv */ | |
8880 | return -KEY_recv; | |
8881 | } | |
8882 | ||
8883 | goto unknown; | |
8884 | ||
8885 | case 'd': | |
8886 | if (name[3] == 'o') | |
8887 | { /* redo */ | |
8888 | return KEY_redo; | |
8889 | } | |
8890 | ||
8891 | goto unknown; | |
8892 | ||
8893 | default: | |
8894 | goto unknown; | |
8895 | } | |
8896 | ||
8897 | default: | |
8898 | goto unknown; | |
8899 | } | |
8900 | ||
8901 | case 's': | |
8902 | switch (name[1]) | |
8903 | { | |
8904 | case 'e': | |
8905 | switch (name[2]) | |
8906 | { | |
8907 | case 'e': | |
8908 | if (name[3] == 'k') | |
8909 | { /* seek */ | |
8910 | return -KEY_seek; | |
8911 | } | |
8912 | ||
8913 | goto unknown; | |
8914 | ||
8915 | case 'n': | |
8916 | if (name[3] == 'd') | |
8917 | { /* send */ | |
8918 | return -KEY_send; | |
8919 | } | |
8920 | ||
8921 | goto unknown; | |
8922 | ||
8923 | default: | |
8924 | goto unknown; | |
8925 | } | |
8926 | ||
8927 | case 'o': | |
8928 | if (name[2] == 'r' && | |
8929 | name[3] == 't') | |
8930 | { /* sort */ | |
8931 | return KEY_sort; | |
8932 | } | |
8933 | ||
8934 | goto unknown; | |
8935 | ||
8936 | case 'q': | |
8937 | if (name[2] == 'r' && | |
8938 | name[3] == 't') | |
8939 | { /* sqrt */ | |
8940 | return -KEY_sqrt; | |
8941 | } | |
8942 | ||
8943 | goto unknown; | |
8944 | ||
8945 | case 't': | |
8946 | if (name[2] == 'a' && | |
8947 | name[3] == 't') | |
8948 | { /* stat */ | |
8949 | return -KEY_stat; | |
8950 | } | |
8951 | ||
8952 | goto unknown; | |
8953 | ||
8954 | default: | |
8955 | goto unknown; | |
8956 | } | |
8957 | ||
8958 | case 't': | |
8959 | switch (name[1]) | |
8960 | { | |
8961 | case 'e': | |
8962 | if (name[2] == 'l' && | |
8963 | name[3] == 'l') | |
8964 | { /* tell */ | |
8965 | return -KEY_tell; | |
8966 | } | |
8967 | ||
8968 | goto unknown; | |
8969 | ||
8970 | case 'i': | |
8971 | switch (name[2]) | |
8972 | { | |
8973 | case 'e': | |
8974 | if (name[3] == 'd') | |
8975 | { /* tied */ | |
1db4d195 | 8976 | return -KEY_tied; |
4c3bbe0f MHM |
8977 | } |
8978 | ||
8979 | goto unknown; | |
8980 | ||
8981 | case 'm': | |
8982 | if (name[3] == 'e') | |
8983 | { /* time */ | |
8984 | return -KEY_time; | |
8985 | } | |
8986 | ||
8987 | goto unknown; | |
8988 | ||
8989 | default: | |
8990 | goto unknown; | |
8991 | } | |
8992 | ||
8993 | default: | |
8994 | goto unknown; | |
8995 | } | |
8996 | ||
8997 | case 'w': | |
0d863452 | 8998 | switch (name[1]) |
4c3bbe0f | 8999 | { |
0d863452 | 9000 | case 'a': |
952306ac RGS |
9001 | switch (name[2]) |
9002 | { | |
9003 | case 'i': | |
9004 | if (name[3] == 't') | |
9005 | { /* wait */ | |
9006 | return -KEY_wait; | |
9007 | } | |
4c3bbe0f | 9008 | |
952306ac | 9009 | goto unknown; |
4c3bbe0f | 9010 | |
952306ac RGS |
9011 | case 'r': |
9012 | if (name[3] == 'n') | |
9013 | { /* warn */ | |
9014 | return -KEY_warn; | |
9015 | } | |
4c3bbe0f | 9016 | |
952306ac | 9017 | goto unknown; |
4c3bbe0f | 9018 | |
952306ac RGS |
9019 | default: |
9020 | goto unknown; | |
9021 | } | |
0d863452 RH |
9022 | |
9023 | case 'h': | |
9024 | if (name[2] == 'e' && | |
9025 | name[3] == 'n') | |
9026 | { /* when */ | |
5458a98a | 9027 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 9028 | } |
4c3bbe0f | 9029 | |
952306ac | 9030 | goto unknown; |
4c3bbe0f | 9031 | |
952306ac RGS |
9032 | default: |
9033 | goto unknown; | |
9034 | } | |
4c3bbe0f | 9035 | |
0d863452 RH |
9036 | default: |
9037 | goto unknown; | |
9038 | } | |
9039 | ||
952306ac | 9040 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 9041 | switch (name[0]) |
e2e1dd5a | 9042 | { |
4c3bbe0f MHM |
9043 | case 'B': |
9044 | if (name[1] == 'E' && | |
9045 | name[2] == 'G' && | |
9046 | name[3] == 'I' && | |
9047 | name[4] == 'N') | |
9048 | { /* BEGIN */ | |
9049 | return KEY_BEGIN; | |
9050 | } | |
9051 | ||
9052 | goto unknown; | |
9053 | ||
9054 | case 'C': | |
9055 | if (name[1] == 'H' && | |
9056 | name[2] == 'E' && | |
9057 | name[3] == 'C' && | |
9058 | name[4] == 'K') | |
9059 | { /* CHECK */ | |
9060 | return KEY_CHECK; | |
9061 | } | |
9062 | ||
9063 | goto unknown; | |
9064 | ||
9065 | case 'a': | |
9066 | switch (name[1]) | |
9067 | { | |
9068 | case 'l': | |
9069 | if (name[2] == 'a' && | |
9070 | name[3] == 'r' && | |
9071 | name[4] == 'm') | |
9072 | { /* alarm */ | |
9073 | return -KEY_alarm; | |
9074 | } | |
9075 | ||
9076 | goto unknown; | |
9077 | ||
9078 | case 't': | |
9079 | if (name[2] == 'a' && | |
9080 | name[3] == 'n' && | |
9081 | name[4] == '2') | |
9082 | { /* atan2 */ | |
9083 | return -KEY_atan2; | |
9084 | } | |
9085 | ||
9086 | goto unknown; | |
9087 | ||
9088 | default: | |
9089 | goto unknown; | |
9090 | } | |
9091 | ||
9092 | case 'b': | |
0d863452 RH |
9093 | switch (name[1]) |
9094 | { | |
9095 | case 'l': | |
9096 | if (name[2] == 'e' && | |
952306ac RGS |
9097 | name[3] == 's' && |
9098 | name[4] == 's') | |
9099 | { /* bless */ | |
9100 | return -KEY_bless; | |
9101 | } | |
4c3bbe0f | 9102 | |
952306ac | 9103 | goto unknown; |
4c3bbe0f | 9104 | |
0d863452 RH |
9105 | case 'r': |
9106 | if (name[2] == 'e' && | |
9107 | name[3] == 'a' && | |
9108 | name[4] == 'k') | |
9109 | { /* break */ | |
5458a98a | 9110 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
9111 | } |
9112 | ||
9113 | goto unknown; | |
9114 | ||
9115 | default: | |
9116 | goto unknown; | |
9117 | } | |
9118 | ||
4c3bbe0f MHM |
9119 | case 'c': |
9120 | switch (name[1]) | |
9121 | { | |
9122 | case 'h': | |
9123 | switch (name[2]) | |
9124 | { | |
9125 | case 'd': | |
9126 | if (name[3] == 'i' && | |
9127 | name[4] == 'r') | |
9128 | { /* chdir */ | |
9129 | return -KEY_chdir; | |
9130 | } | |
9131 | ||
9132 | goto unknown; | |
9133 | ||
9134 | case 'm': | |
9135 | if (name[3] == 'o' && | |
9136 | name[4] == 'd') | |
9137 | { /* chmod */ | |
9138 | return -KEY_chmod; | |
9139 | } | |
9140 | ||
9141 | goto unknown; | |
9142 | ||
9143 | case 'o': | |
9144 | switch (name[3]) | |
9145 | { | |
9146 | case 'm': | |
9147 | if (name[4] == 'p') | |
9148 | { /* chomp */ | |
9149 | return -KEY_chomp; | |
9150 | } | |
9151 | ||
9152 | goto unknown; | |
9153 | ||
9154 | case 'w': | |
9155 | if (name[4] == 'n') | |
9156 | { /* chown */ | |
9157 | return -KEY_chown; | |
9158 | } | |
9159 | ||
9160 | goto unknown; | |
9161 | ||
9162 | default: | |
9163 | goto unknown; | |
9164 | } | |
9165 | ||
9166 | default: | |
9167 | goto unknown; | |
9168 | } | |
9169 | ||
9170 | case 'l': | |
9171 | if (name[2] == 'o' && | |
9172 | name[3] == 's' && | |
9173 | name[4] == 'e') | |
9174 | { /* close */ | |
9175 | return -KEY_close; | |
9176 | } | |
9177 | ||
9178 | goto unknown; | |
9179 | ||
9180 | case 'r': | |
9181 | if (name[2] == 'y' && | |
9182 | name[3] == 'p' && | |
9183 | name[4] == 't') | |
9184 | { /* crypt */ | |
9185 | return -KEY_crypt; | |
9186 | } | |
9187 | ||
9188 | goto unknown; | |
9189 | ||
9190 | default: | |
9191 | goto unknown; | |
9192 | } | |
9193 | ||
9194 | case 'e': | |
9195 | if (name[1] == 'l' && | |
9196 | name[2] == 's' && | |
9197 | name[3] == 'i' && | |
9198 | name[4] == 'f') | |
9199 | { /* elsif */ | |
9200 | return KEY_elsif; | |
9201 | } | |
9202 | ||
9203 | goto unknown; | |
9204 | ||
9205 | case 'f': | |
9206 | switch (name[1]) | |
9207 | { | |
9208 | case 'c': | |
9209 | if (name[2] == 'n' && | |
9210 | name[3] == 't' && | |
9211 | name[4] == 'l') | |
9212 | { /* fcntl */ | |
9213 | return -KEY_fcntl; | |
9214 | } | |
9215 | ||
9216 | goto unknown; | |
9217 | ||
9218 | case 'l': | |
9219 | if (name[2] == 'o' && | |
9220 | name[3] == 'c' && | |
9221 | name[4] == 'k') | |
9222 | { /* flock */ | |
9223 | return -KEY_flock; | |
9224 | } | |
9225 | ||
9226 | goto unknown; | |
9227 | ||
9228 | default: | |
9229 | goto unknown; | |
9230 | } | |
9231 | ||
0d863452 RH |
9232 | case 'g': |
9233 | if (name[1] == 'i' && | |
9234 | name[2] == 'v' && | |
9235 | name[3] == 'e' && | |
9236 | name[4] == 'n') | |
9237 | { /* given */ | |
5458a98a | 9238 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
9239 | } |
9240 | ||
9241 | goto unknown; | |
9242 | ||
4c3bbe0f MHM |
9243 | case 'i': |
9244 | switch (name[1]) | |
9245 | { | |
9246 | case 'n': | |
9247 | if (name[2] == 'd' && | |
9248 | name[3] == 'e' && | |
9249 | name[4] == 'x') | |
9250 | { /* index */ | |
9251 | return -KEY_index; | |
9252 | } | |
9253 | ||
9254 | goto unknown; | |
9255 | ||
9256 | case 'o': | |
9257 | if (name[2] == 'c' && | |
9258 | name[3] == 't' && | |
9259 | name[4] == 'l') | |
9260 | { /* ioctl */ | |
9261 | return -KEY_ioctl; | |
9262 | } | |
9263 | ||
9264 | goto unknown; | |
9265 | ||
9266 | default: | |
9267 | goto unknown; | |
9268 | } | |
9269 | ||
9270 | case 'l': | |
9271 | switch (name[1]) | |
9272 | { | |
9273 | case 'o': | |
9274 | if (name[2] == 'c' && | |
9275 | name[3] == 'a' && | |
9276 | name[4] == 'l') | |
9277 | { /* local */ | |
9278 | return KEY_local; | |
9279 | } | |
9280 | ||
9281 | goto unknown; | |
9282 | ||
9283 | case 's': | |
9284 | if (name[2] == 't' && | |
9285 | name[3] == 'a' && | |
9286 | name[4] == 't') | |
9287 | { /* lstat */ | |
9288 | return -KEY_lstat; | |
9289 | } | |
9290 | ||
9291 | goto unknown; | |
9292 | ||
9293 | default: | |
9294 | goto unknown; | |
9295 | } | |
9296 | ||
9297 | case 'm': | |
9298 | if (name[1] == 'k' && | |
9299 | name[2] == 'd' && | |
9300 | name[3] == 'i' && | |
9301 | name[4] == 'r') | |
9302 | { /* mkdir */ | |
9303 | return -KEY_mkdir; | |
9304 | } | |
9305 | ||
9306 | goto unknown; | |
9307 | ||
9308 | case 'p': | |
9309 | if (name[1] == 'r' && | |
9310 | name[2] == 'i' && | |
9311 | name[3] == 'n' && | |
9312 | name[4] == 't') | |
9313 | { /* print */ | |
9314 | return KEY_print; | |
9315 | } | |
9316 | ||
9317 | goto unknown; | |
9318 | ||
9319 | case 'r': | |
9320 | switch (name[1]) | |
9321 | { | |
9322 | case 'e': | |
9323 | if (name[2] == 's' && | |
9324 | name[3] == 'e' && | |
9325 | name[4] == 't') | |
9326 | { /* reset */ | |
9327 | return -KEY_reset; | |
9328 | } | |
9329 | ||
9330 | goto unknown; | |
9331 | ||
9332 | case 'm': | |
9333 | if (name[2] == 'd' && | |
9334 | name[3] == 'i' && | |
9335 | name[4] == 'r') | |
9336 | { /* rmdir */ | |
9337 | return -KEY_rmdir; | |
9338 | } | |
9339 | ||
9340 | goto unknown; | |
9341 | ||
9342 | default: | |
9343 | goto unknown; | |
9344 | } | |
9345 | ||
9346 | case 's': | |
9347 | switch (name[1]) | |
9348 | { | |
9349 | case 'e': | |
9350 | if (name[2] == 'm' && | |
9351 | name[3] == 'o' && | |
9352 | name[4] == 'p') | |
9353 | { /* semop */ | |
9354 | return -KEY_semop; | |
9355 | } | |
9356 | ||
9357 | goto unknown; | |
9358 | ||
9359 | case 'h': | |
9360 | if (name[2] == 'i' && | |
9361 | name[3] == 'f' && | |
9362 | name[4] == 't') | |
9363 | { /* shift */ | |
9364 | return -KEY_shift; | |
9365 | } | |
9366 | ||
9367 | goto unknown; | |
9368 | ||
9369 | case 'l': | |
9370 | if (name[2] == 'e' && | |
9371 | name[3] == 'e' && | |
9372 | name[4] == 'p') | |
9373 | { /* sleep */ | |
9374 | return -KEY_sleep; | |
9375 | } | |
9376 | ||
9377 | goto unknown; | |
9378 | ||
9379 | case 'p': | |
9380 | if (name[2] == 'l' && | |
9381 | name[3] == 'i' && | |
9382 | name[4] == 't') | |
9383 | { /* split */ | |
9384 | return KEY_split; | |
9385 | } | |
9386 | ||
9387 | goto unknown; | |
9388 | ||
9389 | case 'r': | |
9390 | if (name[2] == 'a' && | |
9391 | name[3] == 'n' && | |
9392 | name[4] == 'd') | |
9393 | { /* srand */ | |
9394 | return -KEY_srand; | |
9395 | } | |
9396 | ||
9397 | goto unknown; | |
9398 | ||
9399 | case 't': | |
952306ac RGS |
9400 | switch (name[2]) |
9401 | { | |
9402 | case 'a': | |
9403 | if (name[3] == 't' && | |
9404 | name[4] == 'e') | |
9405 | { /* state */ | |
5458a98a | 9406 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 9407 | } |
4c3bbe0f | 9408 | |
952306ac RGS |
9409 | goto unknown; |
9410 | ||
9411 | case 'u': | |
9412 | if (name[3] == 'd' && | |
9413 | name[4] == 'y') | |
9414 | { /* study */ | |
9415 | return KEY_study; | |
9416 | } | |
9417 | ||
9418 | goto unknown; | |
9419 | ||
9420 | default: | |
9421 | goto unknown; | |
9422 | } | |
4c3bbe0f MHM |
9423 | |
9424 | default: | |
9425 | goto unknown; | |
9426 | } | |
9427 | ||
9428 | case 't': | |
9429 | if (name[1] == 'i' && | |
9430 | name[2] == 'm' && | |
9431 | name[3] == 'e' && | |
9432 | name[4] == 's') | |
9433 | { /* times */ | |
9434 | return -KEY_times; | |
9435 | } | |
9436 | ||
9437 | goto unknown; | |
9438 | ||
9439 | case 'u': | |
9440 | switch (name[1]) | |
9441 | { | |
9442 | case 'm': | |
9443 | if (name[2] == 'a' && | |
9444 | name[3] == 's' && | |
9445 | name[4] == 'k') | |
9446 | { /* umask */ | |
9447 | return -KEY_umask; | |
9448 | } | |
9449 | ||
9450 | goto unknown; | |
9451 | ||
9452 | case 'n': | |
9453 | switch (name[2]) | |
9454 | { | |
9455 | case 'd': | |
9456 | if (name[3] == 'e' && | |
9457 | name[4] == 'f') | |
9458 | { /* undef */ | |
9459 | return KEY_undef; | |
9460 | } | |
9461 | ||
9462 | goto unknown; | |
9463 | ||
9464 | case 't': | |
9465 | if (name[3] == 'i') | |
9466 | { | |
9467 | switch (name[4]) | |
9468 | { | |
9469 | case 'e': | |
9470 | { /* untie */ | |
1db4d195 | 9471 | return -KEY_untie; |
4c3bbe0f MHM |
9472 | } |
9473 | ||
4c3bbe0f MHM |
9474 | case 'l': |
9475 | { /* until */ | |
9476 | return KEY_until; | |
9477 | } | |
9478 | ||
4c3bbe0f MHM |
9479 | default: |
9480 | goto unknown; | |
9481 | } | |
9482 | } | |
9483 | ||
9484 | goto unknown; | |
9485 | ||
9486 | default: | |
9487 | goto unknown; | |
9488 | } | |
9489 | ||
9490 | case 't': | |
9491 | if (name[2] == 'i' && | |
9492 | name[3] == 'm' && | |
9493 | name[4] == 'e') | |
9494 | { /* utime */ | |
9495 | return -KEY_utime; | |
9496 | } | |
9497 | ||
9498 | goto unknown; | |
9499 | ||
9500 | default: | |
9501 | goto unknown; | |
9502 | } | |
9503 | ||
9504 | case 'w': | |
9505 | switch (name[1]) | |
9506 | { | |
9507 | case 'h': | |
9508 | if (name[2] == 'i' && | |
9509 | name[3] == 'l' && | |
9510 | name[4] == 'e') | |
9511 | { /* while */ | |
9512 | return KEY_while; | |
9513 | } | |
9514 | ||
9515 | goto unknown; | |
9516 | ||
9517 | case 'r': | |
9518 | if (name[2] == 'i' && | |
9519 | name[3] == 't' && | |
9520 | name[4] == 'e') | |
9521 | { /* write */ | |
9522 | return -KEY_write; | |
9523 | } | |
9524 | ||
9525 | goto unknown; | |
9526 | ||
9527 | default: | |
9528 | goto unknown; | |
9529 | } | |
9530 | ||
9531 | default: | |
9532 | goto unknown; | |
e2e1dd5a | 9533 | } |
4c3bbe0f MHM |
9534 | |
9535 | case 6: /* 33 tokens of length 6 */ | |
9536 | switch (name[0]) | |
9537 | { | |
9538 | case 'a': | |
9539 | if (name[1] == 'c' && | |
9540 | name[2] == 'c' && | |
9541 | name[3] == 'e' && | |
9542 | name[4] == 'p' && | |
9543 | name[5] == 't') | |
9544 | { /* accept */ | |
9545 | return -KEY_accept; | |
9546 | } | |
9547 | ||
9548 | goto unknown; | |
9549 | ||
9550 | case 'c': | |
9551 | switch (name[1]) | |
9552 | { | |
9553 | case 'a': | |
9554 | if (name[2] == 'l' && | |
9555 | name[3] == 'l' && | |
9556 | name[4] == 'e' && | |
9557 | name[5] == 'r') | |
9558 | { /* caller */ | |
9559 | return -KEY_caller; | |
9560 | } | |
9561 | ||
9562 | goto unknown; | |
9563 | ||
9564 | case 'h': | |
9565 | if (name[2] == 'r' && | |
9566 | name[3] == 'o' && | |
9567 | name[4] == 'o' && | |
9568 | name[5] == 't') | |
9569 | { /* chroot */ | |
9570 | return -KEY_chroot; | |
9571 | } | |
9572 | ||
9573 | goto unknown; | |
9574 | ||
9575 | default: | |
9576 | goto unknown; | |
9577 | } | |
9578 | ||
9579 | case 'd': | |
9580 | if (name[1] == 'e' && | |
9581 | name[2] == 'l' && | |
9582 | name[3] == 'e' && | |
9583 | name[4] == 't' && | |
9584 | name[5] == 'e') | |
9585 | { /* delete */ | |
9586 | return KEY_delete; | |
9587 | } | |
9588 | ||
9589 | goto unknown; | |
9590 | ||
9591 | case 'e': | |
9592 | switch (name[1]) | |
9593 | { | |
9594 | case 'l': | |
9595 | if (name[2] == 's' && | |
9596 | name[3] == 'e' && | |
9597 | name[4] == 'i' && | |
9598 | name[5] == 'f') | |
9599 | { /* elseif */ | |
9b387841 | 9600 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); |
4c3bbe0f MHM |
9601 | } |
9602 | ||
9603 | goto unknown; | |
9604 | ||
9605 | case 'x': | |
9606 | if (name[2] == 'i' && | |
9607 | name[3] == 's' && | |
9608 | name[4] == 't' && | |
9609 | name[5] == 's') | |
9610 | { /* exists */ | |
9611 | return KEY_exists; | |
9612 | } | |
9613 | ||
9614 | goto unknown; | |
9615 | ||
9616 | default: | |
9617 | goto unknown; | |
9618 | } | |
9619 | ||
9620 | case 'f': | |
9621 | switch (name[1]) | |
9622 | { | |
9623 | case 'i': | |
9624 | if (name[2] == 'l' && | |
9625 | name[3] == 'e' && | |
9626 | name[4] == 'n' && | |
9627 | name[5] == 'o') | |
9628 | { /* fileno */ | |
9629 | return -KEY_fileno; | |
9630 | } | |
9631 | ||
9632 | goto unknown; | |
9633 | ||
9634 | case 'o': | |
9635 | if (name[2] == 'r' && | |
9636 | name[3] == 'm' && | |
9637 | name[4] == 'a' && | |
9638 | name[5] == 't') | |
9639 | { /* format */ | |
9640 | return KEY_format; | |
9641 | } | |
9642 | ||
9643 | goto unknown; | |
9644 | ||
9645 | default: | |
9646 | goto unknown; | |
9647 | } | |
9648 | ||
9649 | case 'g': | |
9650 | if (name[1] == 'm' && | |
9651 | name[2] == 't' && | |
9652 | name[3] == 'i' && | |
9653 | name[4] == 'm' && | |
9654 | name[5] == 'e') | |
9655 | { /* gmtime */ | |
9656 | return -KEY_gmtime; | |
9657 | } | |
9658 | ||
9659 | goto unknown; | |
9660 | ||
9661 | case 'l': | |
9662 | switch (name[1]) | |
9663 | { | |
9664 | case 'e': | |
9665 | if (name[2] == 'n' && | |
9666 | name[3] == 'g' && | |
9667 | name[4] == 't' && | |
9668 | name[5] == 'h') | |
9669 | { /* length */ | |
9670 | return -KEY_length; | |
9671 | } | |
9672 | ||
9673 | goto unknown; | |
9674 | ||
9675 | case 'i': | |
9676 | if (name[2] == 's' && | |
9677 | name[3] == 't' && | |
9678 | name[4] == 'e' && | |
9679 | name[5] == 'n') | |
9680 | { /* listen */ | |
9681 | return -KEY_listen; | |
9682 | } | |
9683 | ||
9684 | goto unknown; | |
9685 | ||
9686 | default: | |
9687 | goto unknown; | |
9688 | } | |
9689 | ||
9690 | case 'm': | |
9691 | if (name[1] == 's' && | |
9692 | name[2] == 'g') | |
9693 | { | |
9694 | switch (name[3]) | |
9695 | { | |
9696 | case 'c': | |
9697 | if (name[4] == 't' && | |
9698 | name[5] == 'l') | |
9699 | { /* msgctl */ | |
9700 | return -KEY_msgctl; | |
9701 | } | |
9702 | ||
9703 | goto unknown; | |
9704 | ||
9705 | case 'g': | |
9706 | if (name[4] == 'e' && | |
9707 | name[5] == 't') | |
9708 | { /* msgget */ | |
9709 | return -KEY_msgget; | |
9710 | } | |
9711 | ||
9712 | goto unknown; | |
9713 | ||
9714 | case 'r': | |
9715 | if (name[4] == 'c' && | |
9716 | name[5] == 'v') | |
9717 | { /* msgrcv */ | |
9718 | return -KEY_msgrcv; | |
9719 | } | |
9720 | ||
9721 | goto unknown; | |
9722 | ||
9723 | case 's': | |
9724 | if (name[4] == 'n' && | |
9725 | name[5] == 'd') | |
9726 | { /* msgsnd */ | |
9727 | return -KEY_msgsnd; | |
9728 | } | |
9729 | ||
9730 | goto unknown; | |
9731 | ||
9732 | default: | |
9733 | goto unknown; | |
9734 | } | |
9735 | } | |
9736 | ||
9737 | goto unknown; | |
9738 | ||
9739 | case 'p': | |
9740 | if (name[1] == 'r' && | |
9741 | name[2] == 'i' && | |
9742 | name[3] == 'n' && | |
9743 | name[4] == 't' && | |
9744 | name[5] == 'f') | |
9745 | { /* printf */ | |
9746 | return KEY_printf; | |
9747 | } | |
9748 | ||
9749 | goto unknown; | |
9750 | ||
9751 | case 'r': | |
9752 | switch (name[1]) | |
9753 | { | |
9754 | case 'e': | |
9755 | switch (name[2]) | |
9756 | { | |
9757 | case 'n': | |
9758 | if (name[3] == 'a' && | |
9759 | name[4] == 'm' && | |
9760 | name[5] == 'e') | |
9761 | { /* rename */ | |
9762 | return -KEY_rename; | |
9763 | } | |
9764 | ||
9765 | goto unknown; | |
9766 | ||
9767 | case 't': | |
9768 | if (name[3] == 'u' && | |
9769 | name[4] == 'r' && | |
9770 | name[5] == 'n') | |
9771 | { /* return */ | |
9772 | return KEY_return; | |
9773 | } | |
9774 | ||
9775 | goto unknown; | |
9776 | ||
9777 | default: | |
9778 | goto unknown; | |
9779 | } | |
9780 | ||
9781 | case 'i': | |
9782 | if (name[2] == 'n' && | |
9783 | name[3] == 'd' && | |
9784 | name[4] == 'e' && | |
9785 | name[5] == 'x') | |
9786 | { /* rindex */ | |
9787 | return -KEY_rindex; | |
9788 | } | |
9789 | ||
9790 | goto unknown; | |
9791 | ||
9792 | default: | |
9793 | goto unknown; | |
9794 | } | |
9795 | ||
9796 | case 's': | |
9797 | switch (name[1]) | |
9798 | { | |
9799 | case 'c': | |
9800 | if (name[2] == 'a' && | |
9801 | name[3] == 'l' && | |
9802 | name[4] == 'a' && | |
9803 | name[5] == 'r') | |
9804 | { /* scalar */ | |
9805 | return KEY_scalar; | |
9806 | } | |
9807 | ||
9808 | goto unknown; | |
9809 | ||
9810 | case 'e': | |
9811 | switch (name[2]) | |
9812 | { | |
9813 | case 'l': | |
9814 | if (name[3] == 'e' && | |
9815 | name[4] == 'c' && | |
9816 | name[5] == 't') | |
9817 | { /* select */ | |
9818 | return -KEY_select; | |
9819 | } | |
9820 | ||
9821 | goto unknown; | |
9822 | ||
9823 | case 'm': | |
9824 | switch (name[3]) | |
9825 | { | |
9826 | case 'c': | |
9827 | if (name[4] == 't' && | |
9828 | name[5] == 'l') | |
9829 | { /* semctl */ | |
9830 | return -KEY_semctl; | |
9831 | } | |
9832 | ||
9833 | goto unknown; | |
9834 | ||
9835 | case 'g': | |
9836 | if (name[4] == 'e' && | |
9837 | name[5] == 't') | |
9838 | { /* semget */ | |
9839 | return -KEY_semget; | |
9840 | } | |
9841 | ||
9842 | goto unknown; | |
9843 | ||
9844 | default: | |
9845 | goto unknown; | |
9846 | } | |
9847 | ||
9848 | default: | |
9849 | goto unknown; | |
9850 | } | |
9851 | ||
9852 | case 'h': | |
9853 | if (name[2] == 'm') | |
9854 | { | |
9855 | switch (name[3]) | |
9856 | { | |
9857 | case 'c': | |
9858 | if (name[4] == 't' && | |
9859 | name[5] == 'l') | |
9860 | { /* shmctl */ | |
9861 | return -KEY_shmctl; | |
9862 | } | |
9863 | ||
9864 | goto unknown; | |
9865 | ||
9866 | case 'g': | |
9867 | if (name[4] == 'e' && | |
9868 | name[5] == 't') | |
9869 | { /* shmget */ | |
9870 | return -KEY_shmget; | |
9871 | } | |
9872 | ||
9873 | goto unknown; | |
9874 | ||
9875 | default: | |
9876 | goto unknown; | |
9877 | } | |
9878 | } | |
9879 | ||
9880 | goto unknown; | |
9881 | ||
9882 | case 'o': | |
9883 | if (name[2] == 'c' && | |
9884 | name[3] == 'k' && | |
9885 | name[4] == 'e' && | |
9886 | name[5] == 't') | |
9887 | { /* socket */ | |
9888 | return -KEY_socket; | |
9889 | } | |
9890 | ||
9891 | goto unknown; | |
9892 | ||
9893 | case 'p': | |
9894 | if (name[2] == 'l' && | |
9895 | name[3] == 'i' && | |
9896 | name[4] == 'c' && | |
9897 | name[5] == 'e') | |
9898 | { /* splice */ | |
9899 | return -KEY_splice; | |
9900 | } | |
9901 | ||
9902 | goto unknown; | |
9903 | ||
9904 | case 'u': | |
9905 | if (name[2] == 'b' && | |
9906 | name[3] == 's' && | |
9907 | name[4] == 't' && | |
9908 | name[5] == 'r') | |
9909 | { /* substr */ | |
9910 | return -KEY_substr; | |
9911 | } | |
9912 | ||
9913 | goto unknown; | |
9914 | ||
9915 | case 'y': | |
9916 | if (name[2] == 's' && | |
9917 | name[3] == 't' && | |
9918 | name[4] == 'e' && | |
9919 | name[5] == 'm') | |
9920 | { /* system */ | |
9921 | return -KEY_system; | |
9922 | } | |
9923 | ||
9924 | goto unknown; | |
9925 | ||
9926 | default: | |
9927 | goto unknown; | |
9928 | } | |
9929 | ||
9930 | case 'u': | |
9931 | if (name[1] == 'n') | |
9932 | { | |
9933 | switch (name[2]) | |
9934 | { | |
9935 | case 'l': | |
9936 | switch (name[3]) | |
9937 | { | |
9938 | case 'e': | |
9939 | if (name[4] == 's' && | |
9940 | name[5] == 's') | |
9941 | { /* unless */ | |
9942 | return KEY_unless; | |
9943 | } | |
9944 | ||
9945 | goto unknown; | |
9946 | ||
9947 | case 'i': | |
9948 | if (name[4] == 'n' && | |
9949 | name[5] == 'k') | |
9950 | { /* unlink */ | |
9951 | return -KEY_unlink; | |
9952 | } | |
9953 | ||
9954 | goto unknown; | |
9955 | ||
9956 | default: | |
9957 | goto unknown; | |
9958 | } | |
9959 | ||
9960 | case 'p': | |
9961 | if (name[3] == 'a' && | |
9962 | name[4] == 'c' && | |
9963 | name[5] == 'k') | |
9964 | { /* unpack */ | |
9965 | return -KEY_unpack; | |
9966 | } | |
9967 | ||
9968 | goto unknown; | |
9969 | ||
9970 | default: | |
9971 | goto unknown; | |
9972 | } | |
9973 | } | |
9974 | ||
9975 | goto unknown; | |
9976 | ||
9977 | case 'v': | |
9978 | if (name[1] == 'a' && | |
9979 | name[2] == 'l' && | |
9980 | name[3] == 'u' && | |
9981 | name[4] == 'e' && | |
9982 | name[5] == 's') | |
9983 | { /* values */ | |
9984 | return -KEY_values; | |
9985 | } | |
9986 | ||
9987 | goto unknown; | |
9988 | ||
9989 | default: | |
9990 | goto unknown; | |
e2e1dd5a | 9991 | } |
4c3bbe0f | 9992 | |
0d863452 | 9993 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
9994 | switch (name[0]) |
9995 | { | |
9996 | case 'D': | |
9997 | if (name[1] == 'E' && | |
9998 | name[2] == 'S' && | |
9999 | name[3] == 'T' && | |
10000 | name[4] == 'R' && | |
10001 | name[5] == 'O' && | |
10002 | name[6] == 'Y') | |
10003 | { /* DESTROY */ | |
10004 | return KEY_DESTROY; | |
10005 | } | |
10006 | ||
10007 | goto unknown; | |
10008 | ||
10009 | case '_': | |
10010 | if (name[1] == '_' && | |
10011 | name[2] == 'E' && | |
10012 | name[3] == 'N' && | |
10013 | name[4] == 'D' && | |
10014 | name[5] == '_' && | |
10015 | name[6] == '_') | |
10016 | { /* __END__ */ | |
10017 | return KEY___END__; | |
10018 | } | |
10019 | ||
10020 | goto unknown; | |
10021 | ||
10022 | case 'b': | |
10023 | if (name[1] == 'i' && | |
10024 | name[2] == 'n' && | |
10025 | name[3] == 'm' && | |
10026 | name[4] == 'o' && | |
10027 | name[5] == 'd' && | |
10028 | name[6] == 'e') | |
10029 | { /* binmode */ | |
10030 | return -KEY_binmode; | |
10031 | } | |
10032 | ||
10033 | goto unknown; | |
10034 | ||
10035 | case 'c': | |
10036 | if (name[1] == 'o' && | |
10037 | name[2] == 'n' && | |
10038 | name[3] == 'n' && | |
10039 | name[4] == 'e' && | |
10040 | name[5] == 'c' && | |
10041 | name[6] == 't') | |
10042 | { /* connect */ | |
10043 | return -KEY_connect; | |
10044 | } | |
10045 | ||
10046 | goto unknown; | |
10047 | ||
10048 | case 'd': | |
10049 | switch (name[1]) | |
10050 | { | |
10051 | case 'b': | |
10052 | if (name[2] == 'm' && | |
10053 | name[3] == 'o' && | |
10054 | name[4] == 'p' && | |
10055 | name[5] == 'e' && | |
10056 | name[6] == 'n') | |
10057 | { /* dbmopen */ | |
10058 | return -KEY_dbmopen; | |
10059 | } | |
10060 | ||
10061 | goto unknown; | |
10062 | ||
10063 | case 'e': | |
0d863452 RH |
10064 | if (name[2] == 'f') |
10065 | { | |
10066 | switch (name[3]) | |
10067 | { | |
10068 | case 'a': | |
10069 | if (name[4] == 'u' && | |
10070 | name[5] == 'l' && | |
10071 | name[6] == 't') | |
10072 | { /* default */ | |
5458a98a | 10073 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
10074 | } |
10075 | ||
10076 | goto unknown; | |
10077 | ||
10078 | case 'i': | |
10079 | if (name[4] == 'n' && | |
952306ac RGS |
10080 | name[5] == 'e' && |
10081 | name[6] == 'd') | |
10082 | { /* defined */ | |
10083 | return KEY_defined; | |
10084 | } | |
4c3bbe0f | 10085 | |
952306ac | 10086 | goto unknown; |
4c3bbe0f | 10087 | |
952306ac RGS |
10088 | default: |
10089 | goto unknown; | |
10090 | } | |
0d863452 RH |
10091 | } |
10092 | ||
10093 | goto unknown; | |
10094 | ||
10095 | default: | |
10096 | goto unknown; | |
10097 | } | |
4c3bbe0f MHM |
10098 | |
10099 | case 'f': | |
10100 | if (name[1] == 'o' && | |
10101 | name[2] == 'r' && | |
10102 | name[3] == 'e' && | |
10103 | name[4] == 'a' && | |
10104 | name[5] == 'c' && | |
10105 | name[6] == 'h') | |
10106 | { /* foreach */ | |
10107 | return KEY_foreach; | |
10108 | } | |
10109 | ||
10110 | goto unknown; | |
10111 | ||
10112 | case 'g': | |
10113 | if (name[1] == 'e' && | |
10114 | name[2] == 't' && | |
10115 | name[3] == 'p') | |
10116 | { | |
10117 | switch (name[4]) | |
10118 | { | |
10119 | case 'g': | |
10120 | if (name[5] == 'r' && | |
10121 | name[6] == 'p') | |
10122 | { /* getpgrp */ | |
10123 | return -KEY_getpgrp; | |
10124 | } | |
10125 | ||
10126 | goto unknown; | |
10127 | ||
10128 | case 'p': | |
10129 | if (name[5] == 'i' && | |
10130 | name[6] == 'd') | |
10131 | { /* getppid */ | |
10132 | return -KEY_getppid; | |
10133 | } | |
10134 | ||
10135 | goto unknown; | |
10136 | ||
10137 | default: | |
10138 | goto unknown; | |
10139 | } | |
10140 | } | |
10141 | ||
10142 | goto unknown; | |
10143 | ||
10144 | case 'l': | |
10145 | if (name[1] == 'c' && | |
10146 | name[2] == 'f' && | |
10147 | name[3] == 'i' && | |
10148 | name[4] == 'r' && | |
10149 | name[5] == 's' && | |
10150 | name[6] == 't') | |
10151 | { /* lcfirst */ | |
10152 | return -KEY_lcfirst; | |
10153 | } | |
10154 | ||
10155 | goto unknown; | |
10156 | ||
10157 | case 'o': | |
10158 | if (name[1] == 'p' && | |
10159 | name[2] == 'e' && | |
10160 | name[3] == 'n' && | |
10161 | name[4] == 'd' && | |
10162 | name[5] == 'i' && | |
10163 | name[6] == 'r') | |
10164 | { /* opendir */ | |
10165 | return -KEY_opendir; | |
10166 | } | |
10167 | ||
10168 | goto unknown; | |
10169 | ||
10170 | case 'p': | |
10171 | if (name[1] == 'a' && | |
10172 | name[2] == 'c' && | |
10173 | name[3] == 'k' && | |
10174 | name[4] == 'a' && | |
10175 | name[5] == 'g' && | |
10176 | name[6] == 'e') | |
10177 | { /* package */ | |
10178 | return KEY_package; | |
10179 | } | |
10180 | ||
10181 | goto unknown; | |
10182 | ||
10183 | case 'r': | |
10184 | if (name[1] == 'e') | |
10185 | { | |
10186 | switch (name[2]) | |
10187 | { | |
10188 | case 'a': | |
10189 | if (name[3] == 'd' && | |
10190 | name[4] == 'd' && | |
10191 | name[5] == 'i' && | |
10192 | name[6] == 'r') | |
10193 | { /* readdir */ | |
10194 | return -KEY_readdir; | |
10195 | } | |
10196 | ||
10197 | goto unknown; | |
10198 | ||
10199 | case 'q': | |
10200 | if (name[3] == 'u' && | |
10201 | name[4] == 'i' && | |
10202 | name[5] == 'r' && | |
10203 | name[6] == 'e') | |
10204 | { /* require */ | |
10205 | return KEY_require; | |
10206 | } | |
10207 | ||
10208 | goto unknown; | |
10209 | ||
10210 | case 'v': | |
10211 | if (name[3] == 'e' && | |
10212 | name[4] == 'r' && | |
10213 | name[5] == 's' && | |
10214 | name[6] == 'e') | |
10215 | { /* reverse */ | |
10216 | return -KEY_reverse; | |
10217 | } | |
10218 | ||
10219 | goto unknown; | |
10220 | ||
10221 | default: | |
10222 | goto unknown; | |
10223 | } | |
10224 | } | |
10225 | ||
10226 | goto unknown; | |
10227 | ||
10228 | case 's': | |
10229 | switch (name[1]) | |
10230 | { | |
10231 | case 'e': | |
10232 | switch (name[2]) | |
10233 | { | |
10234 | case 'e': | |
10235 | if (name[3] == 'k' && | |
10236 | name[4] == 'd' && | |
10237 | name[5] == 'i' && | |
10238 | name[6] == 'r') | |
10239 | { /* seekdir */ | |
10240 | return -KEY_seekdir; | |
10241 | } | |
10242 | ||
10243 | goto unknown; | |
10244 | ||
10245 | case 't': | |
10246 | if (name[3] == 'p' && | |
10247 | name[4] == 'g' && | |
10248 | name[5] == 'r' && | |
10249 | name[6] == 'p') | |
10250 | { /* setpgrp */ | |
10251 | return -KEY_setpgrp; | |
10252 | } | |
10253 | ||
10254 | goto unknown; | |
10255 | ||
10256 | default: | |
10257 | goto unknown; | |
10258 | } | |
10259 | ||
10260 | case 'h': | |
10261 | if (name[2] == 'm' && | |
10262 | name[3] == 'r' && | |
10263 | name[4] == 'e' && | |
10264 | name[5] == 'a' && | |
10265 | name[6] == 'd') | |
10266 | { /* shmread */ | |
10267 | return -KEY_shmread; | |
10268 | } | |
10269 | ||
10270 | goto unknown; | |
10271 | ||
10272 | case 'p': | |
10273 | if (name[2] == 'r' && | |
10274 | name[3] == 'i' && | |
10275 | name[4] == 'n' && | |
10276 | name[5] == 't' && | |
10277 | name[6] == 'f') | |
10278 | { /* sprintf */ | |
10279 | return -KEY_sprintf; | |
10280 | } | |
10281 | ||
10282 | goto unknown; | |
10283 | ||
10284 | case 'y': | |
10285 | switch (name[2]) | |
10286 | { | |
10287 | case 'm': | |
10288 | if (name[3] == 'l' && | |
10289 | name[4] == 'i' && | |
10290 | name[5] == 'n' && | |
10291 | name[6] == 'k') | |
10292 | { /* symlink */ | |
10293 | return -KEY_symlink; | |
10294 | } | |
10295 | ||
10296 | goto unknown; | |
10297 | ||
10298 | case 's': | |
10299 | switch (name[3]) | |
10300 | { | |
10301 | case 'c': | |
10302 | if (name[4] == 'a' && | |
10303 | name[5] == 'l' && | |
10304 | name[6] == 'l') | |
10305 | { /* syscall */ | |
10306 | return -KEY_syscall; | |
10307 | } | |
10308 | ||
10309 | goto unknown; | |
10310 | ||
10311 | case 'o': | |
10312 | if (name[4] == 'p' && | |
10313 | name[5] == 'e' && | |
10314 | name[6] == 'n') | |
10315 | { /* sysopen */ | |
10316 | return -KEY_sysopen; | |
10317 | } | |
10318 | ||
10319 | goto unknown; | |
10320 | ||
10321 | case 'r': | |
10322 | if (name[4] == 'e' && | |
10323 | name[5] == 'a' && | |
10324 | name[6] == 'd') | |
10325 | { /* sysread */ | |
10326 | return -KEY_sysread; | |
10327 | } | |
10328 | ||
10329 | goto unknown; | |
10330 | ||
10331 | case 's': | |
10332 | if (name[4] == 'e' && | |
10333 | name[5] == 'e' && | |
10334 | name[6] == 'k') | |
10335 | { /* sysseek */ | |
10336 | return -KEY_sysseek; | |
10337 | } | |
10338 | ||
10339 | goto unknown; | |
10340 | ||
10341 | default: | |
10342 | goto unknown; | |
10343 | } | |
10344 | ||
10345 | default: | |
10346 | goto unknown; | |
10347 | } | |
10348 | ||
10349 | default: | |
10350 | goto unknown; | |
10351 | } | |
10352 | ||
10353 | case 't': | |
10354 | if (name[1] == 'e' && | |
10355 | name[2] == 'l' && | |
10356 | name[3] == 'l' && | |
10357 | name[4] == 'd' && | |
10358 | name[5] == 'i' && | |
10359 | name[6] == 'r') | |
10360 | { /* telldir */ | |
10361 | return -KEY_telldir; | |
10362 | } | |
10363 | ||
10364 | goto unknown; | |
10365 | ||
10366 | case 'u': | |
10367 | switch (name[1]) | |
10368 | { | |
10369 | case 'c': | |
10370 | if (name[2] == 'f' && | |
10371 | name[3] == 'i' && | |
10372 | name[4] == 'r' && | |
10373 | name[5] == 's' && | |
10374 | name[6] == 't') | |
10375 | { /* ucfirst */ | |
10376 | return -KEY_ucfirst; | |
10377 | } | |
10378 | ||
10379 | goto unknown; | |
10380 | ||
10381 | case 'n': | |
10382 | if (name[2] == 's' && | |
10383 | name[3] == 'h' && | |
10384 | name[4] == 'i' && | |
10385 | name[5] == 'f' && | |
10386 | name[6] == 't') | |
10387 | { /* unshift */ | |
10388 | return -KEY_unshift; | |
10389 | } | |
10390 | ||
10391 | goto unknown; | |
10392 | ||
10393 | default: | |
10394 | goto unknown; | |
10395 | } | |
10396 | ||
10397 | case 'w': | |
10398 | if (name[1] == 'a' && | |
10399 | name[2] == 'i' && | |
10400 | name[3] == 't' && | |
10401 | name[4] == 'p' && | |
10402 | name[5] == 'i' && | |
10403 | name[6] == 'd') | |
10404 | { /* waitpid */ | |
10405 | return -KEY_waitpid; | |
10406 | } | |
10407 | ||
10408 | goto unknown; | |
10409 | ||
10410 | default: | |
10411 | goto unknown; | |
10412 | } | |
10413 | ||
10414 | case 8: /* 26 tokens of length 8 */ | |
10415 | switch (name[0]) | |
10416 | { | |
10417 | case 'A': | |
10418 | if (name[1] == 'U' && | |
10419 | name[2] == 'T' && | |
10420 | name[3] == 'O' && | |
10421 | name[4] == 'L' && | |
10422 | name[5] == 'O' && | |
10423 | name[6] == 'A' && | |
10424 | name[7] == 'D') | |
10425 | { /* AUTOLOAD */ | |
10426 | return KEY_AUTOLOAD; | |
10427 | } | |
10428 | ||
10429 | goto unknown; | |
10430 | ||
10431 | case '_': | |
10432 | if (name[1] == '_') | |
10433 | { | |
10434 | switch (name[2]) | |
10435 | { | |
10436 | case 'D': | |
10437 | if (name[3] == 'A' && | |
10438 | name[4] == 'T' && | |
10439 | name[5] == 'A' && | |
10440 | name[6] == '_' && | |
10441 | name[7] == '_') | |
10442 | { /* __DATA__ */ | |
10443 | return KEY___DATA__; | |
10444 | } | |
10445 | ||
10446 | goto unknown; | |
10447 | ||
10448 | case 'F': | |
10449 | if (name[3] == 'I' && | |
10450 | name[4] == 'L' && | |
10451 | name[5] == 'E' && | |
10452 | name[6] == '_' && | |
10453 | name[7] == '_') | |
10454 | { /* __FILE__ */ | |
10455 | return -KEY___FILE__; | |
10456 | } | |
10457 | ||
10458 | goto unknown; | |
10459 | ||
10460 | case 'L': | |
10461 | if (name[3] == 'I' && | |
10462 | name[4] == 'N' && | |
10463 | name[5] == 'E' && | |
10464 | name[6] == '_' && | |
10465 | name[7] == '_') | |
10466 | { /* __LINE__ */ | |
10467 | return -KEY___LINE__; | |
10468 | } | |
10469 | ||
10470 | goto unknown; | |
10471 | ||
10472 | default: | |
10473 | goto unknown; | |
10474 | } | |
10475 | } | |
10476 | ||
10477 | goto unknown; | |
10478 | ||
10479 | case 'c': | |
10480 | switch (name[1]) | |
10481 | { | |
10482 | case 'l': | |
10483 | if (name[2] == 'o' && | |
10484 | name[3] == 's' && | |
10485 | name[4] == 'e' && | |
10486 | name[5] == 'd' && | |
10487 | name[6] == 'i' && | |
10488 | name[7] == 'r') | |
10489 | { /* closedir */ | |
10490 | return -KEY_closedir; | |
10491 | } | |
10492 | ||
10493 | goto unknown; | |
10494 | ||
10495 | case 'o': | |
10496 | if (name[2] == 'n' && | |
10497 | name[3] == 't' && | |
10498 | name[4] == 'i' && | |
10499 | name[5] == 'n' && | |
10500 | name[6] == 'u' && | |
10501 | name[7] == 'e') | |
10502 | { /* continue */ | |
10503 | return -KEY_continue; | |
10504 | } | |
10505 | ||
10506 | goto unknown; | |
10507 | ||
10508 | default: | |
10509 | goto unknown; | |
10510 | } | |
10511 | ||
10512 | case 'd': | |
10513 | if (name[1] == 'b' && | |
10514 | name[2] == 'm' && | |
10515 | name[3] == 'c' && | |
10516 | name[4] == 'l' && | |
10517 | name[5] == 'o' && | |
10518 | name[6] == 's' && | |
10519 | name[7] == 'e') | |
10520 | { /* dbmclose */ | |
10521 | return -KEY_dbmclose; | |
10522 | } | |
10523 | ||
10524 | goto unknown; | |
10525 | ||
10526 | case 'e': | |
10527 | if (name[1] == 'n' && | |
10528 | name[2] == 'd') | |
10529 | { | |
10530 | switch (name[3]) | |
10531 | { | |
10532 | case 'g': | |
10533 | if (name[4] == 'r' && | |
10534 | name[5] == 'e' && | |
10535 | name[6] == 'n' && | |
10536 | name[7] == 't') | |
10537 | { /* endgrent */ | |
10538 | return -KEY_endgrent; | |
10539 | } | |
10540 | ||
10541 | goto unknown; | |
10542 | ||
10543 | case 'p': | |
10544 | if (name[4] == 'w' && | |
10545 | name[5] == 'e' && | |
10546 | name[6] == 'n' && | |
10547 | name[7] == 't') | |
10548 | { /* endpwent */ | |
10549 | return -KEY_endpwent; | |
10550 | } | |
10551 | ||
10552 | goto unknown; | |
10553 | ||
10554 | default: | |
10555 | goto unknown; | |
10556 | } | |
10557 | } | |
10558 | ||
10559 | goto unknown; | |
10560 | ||
10561 | case 'f': | |
10562 | if (name[1] == 'o' && | |
10563 | name[2] == 'r' && | |
10564 | name[3] == 'm' && | |
10565 | name[4] == 'l' && | |
10566 | name[5] == 'i' && | |
10567 | name[6] == 'n' && | |
10568 | name[7] == 'e') | |
10569 | { /* formline */ | |
10570 | return -KEY_formline; | |
10571 | } | |
10572 | ||
10573 | goto unknown; | |
10574 | ||
10575 | case 'g': | |
10576 | if (name[1] == 'e' && | |
10577 | name[2] == 't') | |
10578 | { | |
10579 | switch (name[3]) | |
10580 | { | |
10581 | case 'g': | |
10582 | if (name[4] == 'r') | |
10583 | { | |
10584 | switch (name[5]) | |
10585 | { | |
10586 | case 'e': | |
10587 | if (name[6] == 'n' && | |
10588 | name[7] == 't') | |
10589 | { /* getgrent */ | |
10590 | return -KEY_getgrent; | |
10591 | } | |
10592 | ||
10593 | goto unknown; | |
10594 | ||
10595 | case 'g': | |
10596 | if (name[6] == 'i' && | |
10597 | name[7] == 'd') | |
10598 | { /* getgrgid */ | |
10599 | return -KEY_getgrgid; | |
10600 | } | |
10601 | ||
10602 | goto unknown; | |
10603 | ||
10604 | case 'n': | |
10605 | if (name[6] == 'a' && | |
10606 | name[7] == 'm') | |
10607 | { /* getgrnam */ | |
10608 | return -KEY_getgrnam; | |
10609 | } | |
10610 | ||
10611 | goto unknown; | |
10612 | ||
10613 | default: | |
10614 | goto unknown; | |
10615 | } | |
10616 | } | |
10617 | ||
10618 | goto unknown; | |
10619 | ||
10620 | case 'l': | |
10621 | if (name[4] == 'o' && | |
10622 | name[5] == 'g' && | |
10623 | name[6] == 'i' && | |
10624 | name[7] == 'n') | |
10625 | { /* getlogin */ | |
10626 | return -KEY_getlogin; | |
10627 | } | |
10628 | ||
10629 | goto unknown; | |
10630 | ||
10631 | case 'p': | |
10632 | if (name[4] == 'w') | |
10633 | { | |
10634 | switch (name[5]) | |
10635 | { | |
10636 | case 'e': | |
10637 | if (name[6] == 'n' && | |
10638 | name[7] == 't') | |
10639 | { /* getpwent */ | |
10640 | return -KEY_getpwent; | |
10641 | } | |
10642 | ||
10643 | goto unknown; | |
10644 | ||
10645 | case 'n': | |
10646 | if (name[6] == 'a' && | |
10647 | name[7] == 'm') | |
10648 | { /* getpwnam */ | |
10649 | return -KEY_getpwnam; | |
10650 | } | |
10651 | ||
10652 | goto unknown; | |
10653 | ||
10654 | case 'u': | |
10655 | if (name[6] == 'i' && | |
10656 | name[7] == 'd') | |
10657 | { /* getpwuid */ | |
10658 | return -KEY_getpwuid; | |
10659 | } | |
10660 | ||
10661 | goto unknown; | |
10662 | ||
10663 | default: | |
10664 | goto unknown; | |
10665 | } | |
10666 | } | |
10667 | ||
10668 | goto unknown; | |
10669 | ||
10670 | default: | |
10671 | goto unknown; | |
10672 | } | |
10673 | } | |
10674 | ||
10675 | goto unknown; | |
10676 | ||
10677 | case 'r': | |
10678 | if (name[1] == 'e' && | |
10679 | name[2] == 'a' && | |
10680 | name[3] == 'd') | |
10681 | { | |
10682 | switch (name[4]) | |
10683 | { | |
10684 | case 'l': | |
10685 | if (name[5] == 'i' && | |
10686 | name[6] == 'n') | |
10687 | { | |
10688 | switch (name[7]) | |
10689 | { | |
10690 | case 'e': | |
10691 | { /* readline */ | |
10692 | return -KEY_readline; | |
10693 | } | |
10694 | ||
4c3bbe0f MHM |
10695 | case 'k': |
10696 | { /* readlink */ | |
10697 | return -KEY_readlink; | |
10698 | } | |
10699 | ||
4c3bbe0f MHM |
10700 | default: |
10701 | goto unknown; | |
10702 | } | |
10703 | } | |
10704 | ||
10705 | goto unknown; | |
10706 | ||
10707 | case 'p': | |
10708 | if (name[5] == 'i' && | |
10709 | name[6] == 'p' && | |
10710 | name[7] == 'e') | |
10711 | { /* readpipe */ | |
10712 | return -KEY_readpipe; | |
10713 | } | |
10714 | ||
10715 | goto unknown; | |
10716 | ||
10717 | default: | |
10718 | goto unknown; | |
10719 | } | |
10720 | } | |
10721 | ||
10722 | goto unknown; | |
10723 | ||
10724 | case 's': | |
10725 | switch (name[1]) | |
10726 | { | |
10727 | case 'e': | |
10728 | if (name[2] == 't') | |
10729 | { | |
10730 | switch (name[3]) | |
10731 | { | |
10732 | case 'g': | |
10733 | if (name[4] == 'r' && | |
10734 | name[5] == 'e' && | |
10735 | name[6] == 'n' && | |
10736 | name[7] == 't') | |
10737 | { /* setgrent */ | |
10738 | return -KEY_setgrent; | |
10739 | } | |
10740 | ||
10741 | goto unknown; | |
10742 | ||
10743 | case 'p': | |
10744 | if (name[4] == 'w' && | |
10745 | name[5] == 'e' && | |
10746 | name[6] == 'n' && | |
10747 | name[7] == 't') | |
10748 | { /* setpwent */ | |
10749 | return -KEY_setpwent; | |
10750 | } | |
10751 | ||
10752 | goto unknown; | |
10753 | ||
10754 | default: | |
10755 | goto unknown; | |
10756 | } | |
10757 | } | |
10758 | ||
10759 | goto unknown; | |
10760 | ||
10761 | case 'h': | |
10762 | switch (name[2]) | |
10763 | { | |
10764 | case 'm': | |
10765 | if (name[3] == 'w' && | |
10766 | name[4] == 'r' && | |
10767 | name[5] == 'i' && | |
10768 | name[6] == 't' && | |
10769 | name[7] == 'e') | |
10770 | { /* shmwrite */ | |
10771 | return -KEY_shmwrite; | |
10772 | } | |
10773 | ||
10774 | goto unknown; | |
10775 | ||
10776 | case 'u': | |
10777 | if (name[3] == 't' && | |
10778 | name[4] == 'd' && | |
10779 | name[5] == 'o' && | |
10780 | name[6] == 'w' && | |
10781 | name[7] == 'n') | |
10782 | { /* shutdown */ | |
10783 | return -KEY_shutdown; | |
10784 | } | |
10785 | ||
10786 | goto unknown; | |
10787 | ||
10788 | default: | |
10789 | goto unknown; | |
10790 | } | |
10791 | ||
10792 | case 'y': | |
10793 | if (name[2] == 's' && | |
10794 | name[3] == 'w' && | |
10795 | name[4] == 'r' && | |
10796 | name[5] == 'i' && | |
10797 | name[6] == 't' && | |
10798 | name[7] == 'e') | |
10799 | { /* syswrite */ | |
10800 | return -KEY_syswrite; | |
10801 | } | |
10802 | ||
10803 | goto unknown; | |
10804 | ||
10805 | default: | |
10806 | goto unknown; | |
10807 | } | |
10808 | ||
10809 | case 't': | |
10810 | if (name[1] == 'r' && | |
10811 | name[2] == 'u' && | |
10812 | name[3] == 'n' && | |
10813 | name[4] == 'c' && | |
10814 | name[5] == 'a' && | |
10815 | name[6] == 't' && | |
10816 | name[7] == 'e') | |
10817 | { /* truncate */ | |
10818 | return -KEY_truncate; | |
10819 | } | |
10820 | ||
10821 | goto unknown; | |
10822 | ||
10823 | default: | |
10824 | goto unknown; | |
10825 | } | |
10826 | ||
3c10abe3 | 10827 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
10828 | switch (name[0]) |
10829 | { | |
3c10abe3 AG |
10830 | case 'U': |
10831 | if (name[1] == 'N' && | |
10832 | name[2] == 'I' && | |
10833 | name[3] == 'T' && | |
10834 | name[4] == 'C' && | |
10835 | name[5] == 'H' && | |
10836 | name[6] == 'E' && | |
10837 | name[7] == 'C' && | |
10838 | name[8] == 'K') | |
10839 | { /* UNITCHECK */ | |
10840 | return KEY_UNITCHECK; | |
10841 | } | |
10842 | ||
10843 | goto unknown; | |
10844 | ||
4c3bbe0f MHM |
10845 | case 'e': |
10846 | if (name[1] == 'n' && | |
10847 | name[2] == 'd' && | |
10848 | name[3] == 'n' && | |
10849 | name[4] == 'e' && | |
10850 | name[5] == 't' && | |
10851 | name[6] == 'e' && | |
10852 | name[7] == 'n' && | |
10853 | name[8] == 't') | |
10854 | { /* endnetent */ | |
10855 | return -KEY_endnetent; | |
10856 | } | |
10857 | ||
10858 | goto unknown; | |
10859 | ||
10860 | case 'g': | |
10861 | if (name[1] == 'e' && | |
10862 | name[2] == 't' && | |
10863 | name[3] == 'n' && | |
10864 | name[4] == 'e' && | |
10865 | name[5] == 't' && | |
10866 | name[6] == 'e' && | |
10867 | name[7] == 'n' && | |
10868 | name[8] == 't') | |
10869 | { /* getnetent */ | |
10870 | return -KEY_getnetent; | |
10871 | } | |
10872 | ||
10873 | goto unknown; | |
10874 | ||
10875 | case 'l': | |
10876 | if (name[1] == 'o' && | |
10877 | name[2] == 'c' && | |
10878 | name[3] == 'a' && | |
10879 | name[4] == 'l' && | |
10880 | name[5] == 't' && | |
10881 | name[6] == 'i' && | |
10882 | name[7] == 'm' && | |
10883 | name[8] == 'e') | |
10884 | { /* localtime */ | |
10885 | return -KEY_localtime; | |
10886 | } | |
10887 | ||
10888 | goto unknown; | |
10889 | ||
10890 | case 'p': | |
10891 | if (name[1] == 'r' && | |
10892 | name[2] == 'o' && | |
10893 | name[3] == 't' && | |
10894 | name[4] == 'o' && | |
10895 | name[5] == 't' && | |
10896 | name[6] == 'y' && | |
10897 | name[7] == 'p' && | |
10898 | name[8] == 'e') | |
10899 | { /* prototype */ | |
10900 | return KEY_prototype; | |
10901 | } | |
10902 | ||
10903 | goto unknown; | |
10904 | ||
10905 | case 'q': | |
10906 | if (name[1] == 'u' && | |
10907 | name[2] == 'o' && | |
10908 | name[3] == 't' && | |
10909 | name[4] == 'e' && | |
10910 | name[5] == 'm' && | |
10911 | name[6] == 'e' && | |
10912 | name[7] == 't' && | |
10913 | name[8] == 'a') | |
10914 | { /* quotemeta */ | |
10915 | return -KEY_quotemeta; | |
10916 | } | |
10917 | ||
10918 | goto unknown; | |
10919 | ||
10920 | case 'r': | |
10921 | if (name[1] == 'e' && | |
10922 | name[2] == 'w' && | |
10923 | name[3] == 'i' && | |
10924 | name[4] == 'n' && | |
10925 | name[5] == 'd' && | |
10926 | name[6] == 'd' && | |
10927 | name[7] == 'i' && | |
10928 | name[8] == 'r') | |
10929 | { /* rewinddir */ | |
10930 | return -KEY_rewinddir; | |
10931 | } | |
10932 | ||
10933 | goto unknown; | |
10934 | ||
10935 | case 's': | |
10936 | if (name[1] == 'e' && | |
10937 | name[2] == 't' && | |
10938 | name[3] == 'n' && | |
10939 | name[4] == 'e' && | |
10940 | name[5] == 't' && | |
10941 | name[6] == 'e' && | |
10942 | name[7] == 'n' && | |
10943 | name[8] == 't') | |
10944 | { /* setnetent */ | |
10945 | return -KEY_setnetent; | |
10946 | } | |
10947 | ||
10948 | goto unknown; | |
10949 | ||
10950 | case 'w': | |
10951 | if (name[1] == 'a' && | |
10952 | name[2] == 'n' && | |
10953 | name[3] == 't' && | |
10954 | name[4] == 'a' && | |
10955 | name[5] == 'r' && | |
10956 | name[6] == 'r' && | |
10957 | name[7] == 'a' && | |
10958 | name[8] == 'y') | |
10959 | { /* wantarray */ | |
10960 | return -KEY_wantarray; | |
10961 | } | |
10962 | ||
10963 | goto unknown; | |
10964 | ||
10965 | default: | |
10966 | goto unknown; | |
10967 | } | |
10968 | ||
10969 | case 10: /* 9 tokens of length 10 */ | |
10970 | switch (name[0]) | |
10971 | { | |
10972 | case 'e': | |
10973 | if (name[1] == 'n' && | |
10974 | name[2] == 'd') | |
10975 | { | |
10976 | switch (name[3]) | |
10977 | { | |
10978 | case 'h': | |
10979 | if (name[4] == 'o' && | |
10980 | name[5] == 's' && | |
10981 | name[6] == 't' && | |
10982 | name[7] == 'e' && | |
10983 | name[8] == 'n' && | |
10984 | name[9] == 't') | |
10985 | { /* endhostent */ | |
10986 | return -KEY_endhostent; | |
10987 | } | |
10988 | ||
10989 | goto unknown; | |
10990 | ||
10991 | case 's': | |
10992 | if (name[4] == 'e' && | |
10993 | name[5] == 'r' && | |
10994 | name[6] == 'v' && | |
10995 | name[7] == 'e' && | |
10996 | name[8] == 'n' && | |
10997 | name[9] == 't') | |
10998 | { /* endservent */ | |
10999 | return -KEY_endservent; | |
11000 | } | |
11001 | ||
11002 | goto unknown; | |
11003 | ||
11004 | default: | |
11005 | goto unknown; | |
11006 | } | |
11007 | } | |
11008 | ||
11009 | goto unknown; | |
11010 | ||
11011 | case 'g': | |
11012 | if (name[1] == 'e' && | |
11013 | name[2] == 't') | |
11014 | { | |
11015 | switch (name[3]) | |
11016 | { | |
11017 | case 'h': | |
11018 | if (name[4] == 'o' && | |
11019 | name[5] == 's' && | |
11020 | name[6] == 't' && | |
11021 | name[7] == 'e' && | |
11022 | name[8] == 'n' && | |
11023 | name[9] == 't') | |
11024 | { /* gethostent */ | |
11025 | return -KEY_gethostent; | |
11026 | } | |
11027 | ||
11028 | goto unknown; | |
11029 | ||
11030 | case 's': | |
11031 | switch (name[4]) | |
11032 | { | |
11033 | case 'e': | |
11034 | if (name[5] == 'r' && | |
11035 | name[6] == 'v' && | |
11036 | name[7] == 'e' && | |
11037 | name[8] == 'n' && | |
11038 | name[9] == 't') | |
11039 | { /* getservent */ | |
11040 | return -KEY_getservent; | |
11041 | } | |
11042 | ||
11043 | goto unknown; | |
11044 | ||
11045 | case 'o': | |
11046 | if (name[5] == 'c' && | |
11047 | name[6] == 'k' && | |
11048 | name[7] == 'o' && | |
11049 | name[8] == 'p' && | |
11050 | name[9] == 't') | |
11051 | { /* getsockopt */ | |
11052 | return -KEY_getsockopt; | |
11053 | } | |
11054 | ||
11055 | goto unknown; | |
11056 | ||
11057 | default: | |
11058 | goto unknown; | |
11059 | } | |
11060 | ||
11061 | default: | |
11062 | goto unknown; | |
11063 | } | |
11064 | } | |
11065 | ||
11066 | goto unknown; | |
11067 | ||
11068 | case 's': | |
11069 | switch (name[1]) | |
11070 | { | |
11071 | case 'e': | |
11072 | if (name[2] == 't') | |
11073 | { | |
11074 | switch (name[3]) | |
11075 | { | |
11076 | case 'h': | |
11077 | if (name[4] == 'o' && | |
11078 | name[5] == 's' && | |
11079 | name[6] == 't' && | |
11080 | name[7] == 'e' && | |
11081 | name[8] == 'n' && | |
11082 | name[9] == 't') | |
11083 | { /* sethostent */ | |
11084 | return -KEY_sethostent; | |
11085 | } | |
11086 | ||
11087 | goto unknown; | |
11088 | ||
11089 | case 's': | |
11090 | switch (name[4]) | |
11091 | { | |
11092 | case 'e': | |
11093 | if (name[5] == 'r' && | |
11094 | name[6] == 'v' && | |
11095 | name[7] == 'e' && | |
11096 | name[8] == 'n' && | |
11097 | name[9] == 't') | |
11098 | { /* setservent */ | |
11099 | return -KEY_setservent; | |
11100 | } | |
11101 | ||
11102 | goto unknown; | |
11103 | ||
11104 | case 'o': | |
11105 | if (name[5] == 'c' && | |
11106 | name[6] == 'k' && | |
11107 | name[7] == 'o' && | |
11108 | name[8] == 'p' && | |
11109 | name[9] == 't') | |
11110 | { /* setsockopt */ | |
11111 | return -KEY_setsockopt; | |
11112 | } | |
11113 | ||
11114 | goto unknown; | |
11115 | ||
11116 | default: | |
11117 | goto unknown; | |
11118 | } | |
11119 | ||
11120 | default: | |
11121 | goto unknown; | |
11122 | } | |
11123 | } | |
11124 | ||
11125 | goto unknown; | |
11126 | ||
11127 | case 'o': | |
11128 | if (name[2] == 'c' && | |
11129 | name[3] == 'k' && | |
11130 | name[4] == 'e' && | |
11131 | name[5] == 't' && | |
11132 | name[6] == 'p' && | |
11133 | name[7] == 'a' && | |
11134 | name[8] == 'i' && | |
11135 | name[9] == 'r') | |
11136 | { /* socketpair */ | |
11137 | return -KEY_socketpair; | |
11138 | } | |
11139 | ||
11140 | goto unknown; | |
11141 | ||
11142 | default: | |
11143 | goto unknown; | |
11144 | } | |
11145 | ||
11146 | default: | |
11147 | goto unknown; | |
e2e1dd5a | 11148 | } |
4c3bbe0f MHM |
11149 | |
11150 | case 11: /* 8 tokens of length 11 */ | |
11151 | switch (name[0]) | |
11152 | { | |
11153 | case '_': | |
11154 | if (name[1] == '_' && | |
11155 | name[2] == 'P' && | |
11156 | name[3] == 'A' && | |
11157 | name[4] == 'C' && | |
11158 | name[5] == 'K' && | |
11159 | name[6] == 'A' && | |
11160 | name[7] == 'G' && | |
11161 | name[8] == 'E' && | |
11162 | name[9] == '_' && | |
11163 | name[10] == '_') | |
11164 | { /* __PACKAGE__ */ | |
11165 | return -KEY___PACKAGE__; | |
11166 | } | |
11167 | ||
11168 | goto unknown; | |
11169 | ||
11170 | case 'e': | |
11171 | if (name[1] == 'n' && | |
11172 | name[2] == 'd' && | |
11173 | name[3] == 'p' && | |
11174 | name[4] == 'r' && | |
11175 | name[5] == 'o' && | |
11176 | name[6] == 't' && | |
11177 | name[7] == 'o' && | |
11178 | name[8] == 'e' && | |
11179 | name[9] == 'n' && | |
11180 | name[10] == 't') | |
11181 | { /* endprotoent */ | |
11182 | return -KEY_endprotoent; | |
11183 | } | |
11184 | ||
11185 | goto unknown; | |
11186 | ||
11187 | case 'g': | |
11188 | if (name[1] == 'e' && | |
11189 | name[2] == 't') | |
11190 | { | |
11191 | switch (name[3]) | |
11192 | { | |
11193 | case 'p': | |
11194 | switch (name[4]) | |
11195 | { | |
11196 | case 'e': | |
11197 | if (name[5] == 'e' && | |
11198 | name[6] == 'r' && | |
11199 | name[7] == 'n' && | |
11200 | name[8] == 'a' && | |
11201 | name[9] == 'm' && | |
11202 | name[10] == 'e') | |
11203 | { /* getpeername */ | |
11204 | return -KEY_getpeername; | |
11205 | } | |
11206 | ||
11207 | goto unknown; | |
11208 | ||
11209 | case 'r': | |
11210 | switch (name[5]) | |
11211 | { | |
11212 | case 'i': | |
11213 | if (name[6] == 'o' && | |
11214 | name[7] == 'r' && | |
11215 | name[8] == 'i' && | |
11216 | name[9] == 't' && | |
11217 | name[10] == 'y') | |
11218 | { /* getpriority */ | |
11219 | return -KEY_getpriority; | |
11220 | } | |
11221 | ||
11222 | goto unknown; | |
11223 | ||
11224 | case 'o': | |
11225 | if (name[6] == 't' && | |
11226 | name[7] == 'o' && | |
11227 | name[8] == 'e' && | |
11228 | name[9] == 'n' && | |
11229 | name[10] == 't') | |
11230 | { /* getprotoent */ | |
11231 | return -KEY_getprotoent; | |
11232 | } | |
11233 | ||
11234 | goto unknown; | |
11235 | ||
11236 | default: | |
11237 | goto unknown; | |
11238 | } | |
11239 | ||
11240 | default: | |
11241 | goto unknown; | |
11242 | } | |
11243 | ||
11244 | case 's': | |
11245 | if (name[4] == 'o' && | |
11246 | name[5] == 'c' && | |
11247 | name[6] == 'k' && | |
11248 | name[7] == 'n' && | |
11249 | name[8] == 'a' && | |
11250 | name[9] == 'm' && | |
11251 | name[10] == 'e') | |
11252 | { /* getsockname */ | |
11253 | return -KEY_getsockname; | |
11254 | } | |
11255 | ||
11256 | goto unknown; | |
11257 | ||
11258 | default: | |
11259 | goto unknown; | |
11260 | } | |
11261 | } | |
11262 | ||
11263 | goto unknown; | |
11264 | ||
11265 | case 's': | |
11266 | if (name[1] == 'e' && | |
11267 | name[2] == 't' && | |
11268 | name[3] == 'p' && | |
11269 | name[4] == 'r') | |
11270 | { | |
11271 | switch (name[5]) | |
11272 | { | |
11273 | case 'i': | |
11274 | if (name[6] == 'o' && | |
11275 | name[7] == 'r' && | |
11276 | name[8] == 'i' && | |
11277 | name[9] == 't' && | |
11278 | name[10] == 'y') | |
11279 | { /* setpriority */ | |
11280 | return -KEY_setpriority; | |
11281 | } | |
11282 | ||
11283 | goto unknown; | |
11284 | ||
11285 | case 'o': | |
11286 | if (name[6] == 't' && | |
11287 | name[7] == 'o' && | |
11288 | name[8] == 'e' && | |
11289 | name[9] == 'n' && | |
11290 | name[10] == 't') | |
11291 | { /* setprotoent */ | |
11292 | return -KEY_setprotoent; | |
11293 | } | |
11294 | ||
11295 | goto unknown; | |
11296 | ||
11297 | default: | |
11298 | goto unknown; | |
11299 | } | |
11300 | } | |
11301 | ||
11302 | goto unknown; | |
11303 | ||
11304 | default: | |
11305 | goto unknown; | |
e2e1dd5a | 11306 | } |
4c3bbe0f MHM |
11307 | |
11308 | case 12: /* 2 tokens of length 12 */ | |
11309 | if (name[0] == 'g' && | |
11310 | name[1] == 'e' && | |
11311 | name[2] == 't' && | |
11312 | name[3] == 'n' && | |
11313 | name[4] == 'e' && | |
11314 | name[5] == 't' && | |
11315 | name[6] == 'b' && | |
11316 | name[7] == 'y') | |
11317 | { | |
11318 | switch (name[8]) | |
11319 | { | |
11320 | case 'a': | |
11321 | if (name[9] == 'd' && | |
11322 | name[10] == 'd' && | |
11323 | name[11] == 'r') | |
11324 | { /* getnetbyaddr */ | |
11325 | return -KEY_getnetbyaddr; | |
11326 | } | |
11327 | ||
11328 | goto unknown; | |
11329 | ||
11330 | case 'n': | |
11331 | if (name[9] == 'a' && | |
11332 | name[10] == 'm' && | |
11333 | name[11] == 'e') | |
11334 | { /* getnetbyname */ | |
11335 | return -KEY_getnetbyname; | |
11336 | } | |
11337 | ||
11338 | goto unknown; | |
11339 | ||
11340 | default: | |
11341 | goto unknown; | |
11342 | } | |
e2e1dd5a | 11343 | } |
4c3bbe0f MHM |
11344 | |
11345 | goto unknown; | |
11346 | ||
11347 | case 13: /* 4 tokens of length 13 */ | |
11348 | if (name[0] == 'g' && | |
11349 | name[1] == 'e' && | |
11350 | name[2] == 't') | |
11351 | { | |
11352 | switch (name[3]) | |
11353 | { | |
11354 | case 'h': | |
11355 | if (name[4] == 'o' && | |
11356 | name[5] == 's' && | |
11357 | name[6] == 't' && | |
11358 | name[7] == 'b' && | |
11359 | name[8] == 'y') | |
11360 | { | |
11361 | switch (name[9]) | |
11362 | { | |
11363 | case 'a': | |
11364 | if (name[10] == 'd' && | |
11365 | name[11] == 'd' && | |
11366 | name[12] == 'r') | |
11367 | { /* gethostbyaddr */ | |
11368 | return -KEY_gethostbyaddr; | |
11369 | } | |
11370 | ||
11371 | goto unknown; | |
11372 | ||
11373 | case 'n': | |
11374 | if (name[10] == 'a' && | |
11375 | name[11] == 'm' && | |
11376 | name[12] == 'e') | |
11377 | { /* gethostbyname */ | |
11378 | return -KEY_gethostbyname; | |
11379 | } | |
11380 | ||
11381 | goto unknown; | |
11382 | ||
11383 | default: | |
11384 | goto unknown; | |
11385 | } | |
11386 | } | |
11387 | ||
11388 | goto unknown; | |
11389 | ||
11390 | case 's': | |
11391 | if (name[4] == 'e' && | |
11392 | name[5] == 'r' && | |
11393 | name[6] == 'v' && | |
11394 | name[7] == 'b' && | |
11395 | name[8] == 'y') | |
11396 | { | |
11397 | switch (name[9]) | |
11398 | { | |
11399 | case 'n': | |
11400 | if (name[10] == 'a' && | |
11401 | name[11] == 'm' && | |
11402 | name[12] == 'e') | |
11403 | { /* getservbyname */ | |
11404 | return -KEY_getservbyname; | |
11405 | } | |
11406 | ||
11407 | goto unknown; | |
11408 | ||
11409 | case 'p': | |
11410 | if (name[10] == 'o' && | |
11411 | name[11] == 'r' && | |
11412 | name[12] == 't') | |
11413 | { /* getservbyport */ | |
11414 | return -KEY_getservbyport; | |
11415 | } | |
11416 | ||
11417 | goto unknown; | |
11418 | ||
11419 | default: | |
11420 | goto unknown; | |
11421 | } | |
11422 | } | |
11423 | ||
11424 | goto unknown; | |
11425 | ||
11426 | default: | |
11427 | goto unknown; | |
11428 | } | |
e2e1dd5a | 11429 | } |
4c3bbe0f MHM |
11430 | |
11431 | goto unknown; | |
11432 | ||
11433 | case 14: /* 1 tokens of length 14 */ | |
11434 | if (name[0] == 'g' && | |
11435 | name[1] == 'e' && | |
11436 | name[2] == 't' && | |
11437 | name[3] == 'p' && | |
11438 | name[4] == 'r' && | |
11439 | name[5] == 'o' && | |
11440 | name[6] == 't' && | |
11441 | name[7] == 'o' && | |
11442 | name[8] == 'b' && | |
11443 | name[9] == 'y' && | |
11444 | name[10] == 'n' && | |
11445 | name[11] == 'a' && | |
11446 | name[12] == 'm' && | |
11447 | name[13] == 'e') | |
11448 | { /* getprotobyname */ | |
11449 | return -KEY_getprotobyname; | |
11450 | } | |
11451 | ||
11452 | goto unknown; | |
11453 | ||
11454 | case 16: /* 1 tokens of length 16 */ | |
11455 | if (name[0] == 'g' && | |
11456 | name[1] == 'e' && | |
11457 | name[2] == 't' && | |
11458 | name[3] == 'p' && | |
11459 | name[4] == 'r' && | |
11460 | name[5] == 'o' && | |
11461 | name[6] == 't' && | |
11462 | name[7] == 'o' && | |
11463 | name[8] == 'b' && | |
11464 | name[9] == 'y' && | |
11465 | name[10] == 'n' && | |
11466 | name[11] == 'u' && | |
11467 | name[12] == 'm' && | |
11468 | name[13] == 'b' && | |
11469 | name[14] == 'e' && | |
11470 | name[15] == 'r') | |
11471 | { /* getprotobynumber */ | |
11472 | return -KEY_getprotobynumber; | |
11473 | } | |
11474 | ||
11475 | goto unknown; | |
11476 | ||
11477 | default: | |
11478 | goto unknown; | |
e2e1dd5a | 11479 | } |
4c3bbe0f MHM |
11480 | |
11481 | unknown: | |
e2e1dd5a | 11482 | return 0; |
a687059c LW |
11483 | } |
11484 | ||
76e3520e | 11485 | STATIC void |
c94115d8 | 11486 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 11487 | { |
97aff369 | 11488 | dVAR; |
2f3197b3 | 11489 | |
7918f24d NC |
11490 | PERL_ARGS_ASSERT_CHECKCOMMA; |
11491 | ||
d008e5eb | 11492 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
11493 | if (ckWARN(WARN_SYNTAX)) { |
11494 | int level = 1; | |
26ff0806 | 11495 | const char *w; |
d008e5eb GS |
11496 | for (w = s+2; *w && level; w++) { |
11497 | if (*w == '(') | |
11498 | ++level; | |
11499 | else if (*w == ')') | |
11500 | --level; | |
11501 | } | |
888fea98 NC |
11502 | while (isSPACE(*w)) |
11503 | ++w; | |
b1439985 RGS |
11504 | /* the list of chars below is for end of statements or |
11505 | * block / parens, boolean operators (&&, ||, //) and branch | |
11506 | * constructs (or, and, if, until, unless, while, err, for). | |
11507 | * Not a very solid hack... */ | |
11508 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 11509 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 11510 | "%s (...) interpreted as function",name); |
d008e5eb | 11511 | } |
2f3197b3 | 11512 | } |
3280af22 | 11513 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 11514 | s++; |
a687059c LW |
11515 | if (*s == '(') |
11516 | s++; | |
3280af22 | 11517 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11518 | s++; |
7e2040f0 | 11519 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 11520 | const char * const w = s++; |
7e2040f0 | 11521 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 11522 | s++; |
3280af22 | 11523 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11524 | s++; |
e929a76b | 11525 | if (*s == ',') { |
c94115d8 | 11526 | GV* gv; |
5458a98a | 11527 | if (keyword(w, s - w, 0)) |
e929a76b | 11528 | return; |
c94115d8 NC |
11529 | |
11530 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
11531 | if (gv && GvCVu(gv)) | |
abbb3198 | 11532 | return; |
cea2e8a9 | 11533 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
11534 | } |
11535 | } | |
11536 | } | |
11537 | ||
423cee85 JH |
11538 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
11539 | Best used as sv=new_constant(..., sv, ...). | |
11540 | If s, pv are NULL, calls subroutine with one argument, | |
11541 | and type is used with error messages only. */ | |
11542 | ||
b3ac6de7 | 11543 | STATIC SV * |
eb0d8d16 NC |
11544 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
11545 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 11546 | { |
27da23d5 | 11547 | dVAR; dSP; |
890ce7af | 11548 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 11549 | SV *res; |
b3ac6de7 IZ |
11550 | SV **cvp; |
11551 | SV *cv, *typesv; | |
89e33a05 | 11552 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 11553 | |
7918f24d NC |
11554 | PERL_ARGS_ASSERT_NEW_CONSTANT; |
11555 | ||
f0af216f | 11556 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
11557 | SV *msg; |
11558 | ||
10edeb5d JH |
11559 | why2 = (const char *) |
11560 | (strEQ(key,"charnames") | |
11561 | ? "(possibly a missing \"use charnames ...\")" | |
11562 | : ""); | |
4e553d73 | 11563 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
11564 | (type ? type: "undef"), why2); |
11565 | ||
11566 | /* This is convoluted and evil ("goto considered harmful") | |
11567 | * but I do not understand the intricacies of all the different | |
11568 | * failure modes of %^H in here. The goal here is to make | |
11569 | * the most probable error message user-friendly. --jhi */ | |
11570 | ||
11571 | goto msgdone; | |
11572 | ||
423cee85 | 11573 | report: |
4e553d73 | 11574 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 11575 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 11576 | msgdone: |
95a20fc0 | 11577 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
11578 | SvREFCNT_dec(msg); |
11579 | return sv; | |
11580 | } | |
ff3f963a KW |
11581 | |
11582 | /* charnames doesn't work well if there have been errors found */ | |
f5a57329 RGS |
11583 | if (PL_error_count > 0 && strEQ(key,"charnames")) |
11584 | return &PL_sv_undef; | |
ff3f963a | 11585 | |
eb0d8d16 | 11586 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 11587 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
11588 | why1 = "$^H{"; |
11589 | why2 = key; | |
f0af216f | 11590 | why3 = "} is not defined"; |
423cee85 | 11591 | goto report; |
b3ac6de7 IZ |
11592 | } |
11593 | sv_2mortal(sv); /* Parent created it permanently */ | |
11594 | cv = *cvp; | |
423cee85 | 11595 | if (!pv && s) |
59cd0e26 | 11596 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 11597 | if (type && pv) |
59cd0e26 | 11598 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 11599 | else |
423cee85 | 11600 | typesv = &PL_sv_undef; |
4e553d73 | 11601 | |
e788e7d3 | 11602 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
11603 | ENTER ; |
11604 | SAVETMPS; | |
4e553d73 | 11605 | |
423cee85 | 11606 | PUSHMARK(SP) ; |
a5845cb7 | 11607 | EXTEND(sp, 3); |
423cee85 JH |
11608 | if (pv) |
11609 | PUSHs(pv); | |
b3ac6de7 | 11610 | PUSHs(sv); |
423cee85 JH |
11611 | if (pv) |
11612 | PUSHs(typesv); | |
b3ac6de7 | 11613 | PUTBACK; |
423cee85 | 11614 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 11615 | |
423cee85 | 11616 | SPAGAIN ; |
4e553d73 | 11617 | |
423cee85 | 11618 | /* Check the eval first */ |
9b0e499b | 11619 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 11620 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 11621 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 11622 | (void)POPs; |
b37c2d43 | 11623 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
11624 | } |
11625 | else { | |
11626 | res = POPs; | |
b37c2d43 | 11627 | SvREFCNT_inc_simple_void(res); |
423cee85 | 11628 | } |
4e553d73 | 11629 | |
423cee85 JH |
11630 | PUTBACK ; |
11631 | FREETMPS ; | |
11632 | LEAVE ; | |
b3ac6de7 | 11633 | POPSTACK; |
4e553d73 | 11634 | |
b3ac6de7 | 11635 | if (!SvOK(res)) { |
423cee85 JH |
11636 | why1 = "Call to &{$^H{"; |
11637 | why2 = key; | |
f0af216f | 11638 | why3 = "}} did not return a defined value"; |
423cee85 JH |
11639 | sv = res; |
11640 | goto report; | |
9b0e499b | 11641 | } |
423cee85 | 11642 | |
9b0e499b | 11643 | return res; |
b3ac6de7 | 11644 | } |
4e553d73 | 11645 | |
d0a148a6 NC |
11646 | /* Returns a NUL terminated string, with the length of the string written to |
11647 | *slp | |
11648 | */ | |
76e3520e | 11649 | STATIC char * |
cea2e8a9 | 11650 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 11651 | { |
97aff369 | 11652 | dVAR; |
463ee0b2 | 11653 | register char *d = dest; |
890ce7af | 11654 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
7918f24d NC |
11655 | |
11656 | PERL_ARGS_ASSERT_SCAN_WORD; | |
11657 | ||
463ee0b2 | 11658 | for (;;) { |
8903cb82 | 11659 | if (d >= e) |
cea2e8a9 | 11660 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11661 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11662 | *d++ = *s++; |
c35e046a | 11663 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11664 | *d++ = ':'; |
11665 | *d++ = ':'; | |
11666 | s++; | |
11667 | } | |
c35e046a | 11668 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
11669 | *d++ = *s++; |
11670 | *d++ = *s++; | |
11671 | } | |
fd400ab9 | 11672 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11673 | char *t = s + UTF8SKIP(s); |
c35e046a | 11674 | size_t len; |
fd400ab9 | 11675 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 11676 | t += UTF8SKIP(t); |
c35e046a AL |
11677 | len = t - s; |
11678 | if (d + len > e) | |
cea2e8a9 | 11679 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
11680 | Copy(s, d, len, char); |
11681 | d += len; | |
a0ed51b3 LW |
11682 | s = t; |
11683 | } | |
463ee0b2 LW |
11684 | else { |
11685 | *d = '\0'; | |
11686 | *slp = d - dest; | |
11687 | return s; | |
e929a76b | 11688 | } |
378cc40b LW |
11689 | } |
11690 | } | |
11691 | ||
76e3520e | 11692 | STATIC char * |
f54cb97a | 11693 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 11694 | { |
97aff369 | 11695 | dVAR; |
6136c704 | 11696 | char *bracket = NULL; |
748a9306 | 11697 | char funny = *s++; |
6136c704 | 11698 | register char *d = dest; |
0b3da58d | 11699 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
378cc40b | 11700 | |
7918f24d NC |
11701 | PERL_ARGS_ASSERT_SCAN_IDENT; |
11702 | ||
a0d0e21e | 11703 | if (isSPACE(*s)) |
29595ff2 | 11704 | s = PEEKSPACE(s); |
de3bb511 | 11705 | if (isDIGIT(*s)) { |
8903cb82 | 11706 | while (isDIGIT(*s)) { |
11707 | if (d >= e) | |
cea2e8a9 | 11708 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 11709 | *d++ = *s++; |
8903cb82 | 11710 | } |
378cc40b LW |
11711 | } |
11712 | else { | |
463ee0b2 | 11713 | for (;;) { |
8903cb82 | 11714 | if (d >= e) |
cea2e8a9 | 11715 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11716 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11717 | *d++ = *s++; |
7e2040f0 | 11718 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11719 | *d++ = ':'; |
11720 | *d++ = ':'; | |
11721 | s++; | |
11722 | } | |
a0d0e21e | 11723 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
11724 | *d++ = *s++; |
11725 | *d++ = *s++; | |
11726 | } | |
fd400ab9 | 11727 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11728 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 11729 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
11730 | t += UTF8SKIP(t); |
11731 | if (d + (t - s) > e) | |
cea2e8a9 | 11732 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
11733 | Copy(s, d, t - s, char); |
11734 | d += t - s; | |
11735 | s = t; | |
11736 | } | |
463ee0b2 LW |
11737 | else |
11738 | break; | |
11739 | } | |
378cc40b LW |
11740 | } |
11741 | *d = '\0'; | |
11742 | d = dest; | |
79072805 | 11743 | if (*d) { |
3280af22 NIS |
11744 | if (PL_lex_state != LEX_NORMAL) |
11745 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 11746 | return s; |
378cc40b | 11747 | } |
748a9306 | 11748 | if (*s == '$' && s[1] && |
3792a11b | 11749 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 11750 | { |
4810e5ec | 11751 | return s; |
5cd24f17 | 11752 | } |
79072805 LW |
11753 | if (*s == '{') { |
11754 | bracket = s; | |
11755 | s++; | |
11756 | } | |
11757 | else if (ck_uni) | |
11758 | check_uni(); | |
93a17b20 | 11759 | if (s < send) |
79072805 LW |
11760 | *d = *s++; |
11761 | d[1] = '\0'; | |
2b92dfce | 11762 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 11763 | *d = toCTRL(*s); |
11764 | s++; | |
de3bb511 | 11765 | } |
79072805 | 11766 | if (bracket) { |
748a9306 | 11767 | if (isSPACE(s[-1])) { |
fa83b5b6 | 11768 | while (s < send) { |
f54cb97a | 11769 | const char ch = *s++; |
bf4acbe4 | 11770 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 11771 | *d = ch; |
11772 | break; | |
11773 | } | |
11774 | } | |
748a9306 | 11775 | } |
7e2040f0 | 11776 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 11777 | d++; |
a0ed51b3 | 11778 | if (UTF) { |
6136c704 AL |
11779 | char *end = s; |
11780 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
11781 | end += UTF8SKIP(end); | |
11782 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
11783 | end += UTF8SKIP(end); | |
a0ed51b3 | 11784 | } |
6136c704 AL |
11785 | Copy(s, d, end - s, char); |
11786 | d += end - s; | |
11787 | s = end; | |
a0ed51b3 LW |
11788 | } |
11789 | else { | |
2b92dfce | 11790 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 11791 | *d++ = *s++; |
2b92dfce | 11792 | if (d >= e) |
cea2e8a9 | 11793 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 11794 | } |
79072805 | 11795 | *d = '\0'; |
c35e046a AL |
11796 | while (s < send && SPACE_OR_TAB(*s)) |
11797 | s++; | |
ff68c719 | 11798 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 11799 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
11800 | const char * const brack = |
11801 | (const char *) | |
11802 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 11803 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 11804 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
11805 | funny, dest, brack, funny, dest, brack); |
11806 | } | |
79072805 | 11807 | bracket++; |
a0be28da | 11808 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
11809 | return s; |
11810 | } | |
4e553d73 NIS |
11811 | } |
11812 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
11813 | * 1999-02-27 mjd-perl-patch@plover.com */ |
11814 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
11815 | && isALNUM(*s)) | |
11816 | { | |
11817 | d++; | |
11818 | while (isALNUM(*s) && d < e) { | |
11819 | *d++ = *s++; | |
11820 | } | |
11821 | if (d >= e) | |
cea2e8a9 | 11822 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 11823 | *d = '\0'; |
79072805 LW |
11824 | } |
11825 | if (*s == '}') { | |
11826 | s++; | |
7df0d042 | 11827 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 11828 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
11829 | PL_expect = XREF; |
11830 | } | |
d008e5eb | 11831 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 11832 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
11833 | (keyword(dest, d - dest, 0) |
11834 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 11835 | { |
c35e046a AL |
11836 | if (funny == '#') |
11837 | funny = '@'; | |
9014280d | 11838 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
11839 | "Ambiguous use of %c{%s} resolved to %c%s", |
11840 | funny, dest, funny, dest); | |
11841 | } | |
11842 | } | |
79072805 LW |
11843 | } |
11844 | else { | |
11845 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 11846 | *dest = '\0'; |
79072805 LW |
11847 | } |
11848 | } | |
3280af22 NIS |
11849 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
11850 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
11851 | return s; |
11852 | } | |
11853 | ||
879d0c72 NC |
11854 | static U32 |
11855 | S_pmflag(U32 pmfl, const char ch) { | |
11856 | switch (ch) { | |
11857 | CASE_STD_PMMOD_FLAGS_PARSE_SET(&pmfl); | |
4f4d7508 DC |
11858 | case GLOBAL_PAT_MOD: pmfl |= PMf_GLOBAL; break; |
11859 | case CONTINUE_PAT_MOD: pmfl |= PMf_CONTINUE; break; | |
11860 | case ONCE_PAT_MOD: pmfl |= PMf_KEEP; break; | |
11861 | case KEEPCOPY_PAT_MOD: pmfl |= PMf_KEEPCOPY; break; | |
11862 | case NONDESTRUCT_PAT_MOD: pmfl |= PMf_NONDESTRUCT; break; | |
879d0c72 NC |
11863 | } |
11864 | return pmfl; | |
11865 | } | |
11866 | ||
76e3520e | 11867 | STATIC char * |
cea2e8a9 | 11868 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 11869 | { |
97aff369 | 11870 | dVAR; |
79072805 | 11871 | PMOP *pm; |
5db06880 | 11872 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 11873 | const char * const valid_flags = |
a20207d7 | 11874 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
11875 | #ifdef PERL_MAD |
11876 | char *modstart; | |
11877 | #endif | |
11878 | ||
7918f24d | 11879 | PERL_ARGS_ASSERT_SCAN_PAT; |
378cc40b | 11880 | |
25c09cbf | 11881 | if (!s) { |
6136c704 | 11882 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
11883 | Perl_croak(aTHX_ |
11884 | (const char *) | |
11885 | (*delimiter == '?' | |
11886 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
11887 | : "Search pattern not terminated" )); | |
25c09cbf | 11888 | } |
bbce6d69 | 11889 | |
8782bef2 | 11890 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
11891 | if (PL_multi_open == '?') { |
11892 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 11893 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
11894 | |
11895 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
11896 | allows us to restrict the list needed by reset to just the ?? | |
11897 | matches. */ | |
11898 | assert(type != OP_TRANS); | |
11899 | if (PL_curstash) { | |
daba3364 | 11900 | MAGIC *mg = mg_find((const SV *)PL_curstash, PERL_MAGIC_symtab); |
ad639bfb NC |
11901 | U32 elements; |
11902 | if (!mg) { | |
daba3364 | 11903 | mg = sv_magicext(MUTABLE_SV(PL_curstash), 0, PERL_MAGIC_symtab, 0, 0, |
ad639bfb NC |
11904 | 0); |
11905 | } | |
11906 | elements = mg->mg_len / sizeof(PMOP**); | |
11907 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
11908 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
11909 | mg->mg_len = elements * sizeof(PMOP**); | |
11910 | PmopSTASH_set(pm,PL_curstash); | |
11911 | } | |
11912 | } | |
5db06880 NC |
11913 | #ifdef PERL_MAD |
11914 | modstart = s; | |
11915 | #endif | |
6136c704 | 11916 | while (*s && strchr(valid_flags, *s)) |
879d0c72 | 11917 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
e6897b1a KW |
11918 | |
11919 | if (isALNUM(*s)) { | |
11920 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), | |
11921 | "Having no space between pattern and following word is deprecated"); | |
11922 | ||
11923 | } | |
5db06880 NC |
11924 | #ifdef PERL_MAD |
11925 | if (PL_madskills && modstart != s) { | |
11926 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
11927 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
11928 | } | |
11929 | #endif | |
4ac733c9 | 11930 | /* issue a warning if /c is specified,but /g is not */ |
a2a5de95 | 11931 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL)) |
4ac733c9 | 11932 | { |
a2a5de95 NC |
11933 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), |
11934 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
11935 | } |
11936 | ||
3280af22 | 11937 | PL_lex_op = (OP*)pm; |
6154021b | 11938 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
11939 | return s; |
11940 | } | |
11941 | ||
76e3520e | 11942 | STATIC char * |
cea2e8a9 | 11943 | S_scan_subst(pTHX_ char *start) |
79072805 | 11944 | { |
27da23d5 | 11945 | dVAR; |
a0d0e21e | 11946 | register char *s; |
79072805 | 11947 | register PMOP *pm; |
4fdae800 | 11948 | I32 first_start; |
79072805 | 11949 | I32 es = 0; |
5db06880 NC |
11950 | #ifdef PERL_MAD |
11951 | char *modstart; | |
11952 | #endif | |
79072805 | 11953 | |
7918f24d NC |
11954 | PERL_ARGS_ASSERT_SCAN_SUBST; |
11955 | ||
6154021b | 11956 | pl_yylval.ival = OP_NULL; |
79072805 | 11957 | |
5db06880 | 11958 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11959 | |
37fd879b | 11960 | if (!s) |
cea2e8a9 | 11961 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 11962 | |
3280af22 | 11963 | if (s[-1] == PL_multi_open) |
79072805 | 11964 | s--; |
5db06880 NC |
11965 | #ifdef PERL_MAD |
11966 | if (PL_madskills) { | |
cd81e915 NC |
11967 | CURMAD('q', PL_thisopen); |
11968 | CURMAD('_', PL_thiswhite); | |
11969 | CURMAD('E', PL_thisstuff); | |
11970 | CURMAD('Q', PL_thisclose); | |
11971 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11972 | } |
11973 | #endif | |
79072805 | 11974 | |
3280af22 | 11975 | first_start = PL_multi_start; |
5db06880 | 11976 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11977 | if (!s) { |
37fd879b | 11978 | if (PL_lex_stuff) { |
3280af22 | 11979 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11980 | PL_lex_stuff = NULL; |
37fd879b | 11981 | } |
cea2e8a9 | 11982 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 11983 | } |
3280af22 | 11984 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 11985 | |
79072805 | 11986 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
11987 | |
11988 | #ifdef PERL_MAD | |
11989 | if (PL_madskills) { | |
cd81e915 NC |
11990 | CURMAD('z', PL_thisopen); |
11991 | CURMAD('R', PL_thisstuff); | |
11992 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
11993 | } |
11994 | modstart = s; | |
11995 | #endif | |
11996 | ||
48c036b1 | 11997 | while (*s) { |
a20207d7 | 11998 | if (*s == EXEC_PAT_MOD) { |
a687059c | 11999 | s++; |
2f3197b3 | 12000 | es++; |
a687059c | 12001 | } |
a20207d7 | 12002 | else if (strchr(S_PAT_MODS, *s)) |
879d0c72 | 12003 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
aa78b661 KW |
12004 | else { |
12005 | if (isALNUM(*s)) { | |
12006 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), | |
12007 | "Having no space between pattern and following word is deprecated"); | |
12008 | ||
12009 | } | |
48c036b1 | 12010 | break; |
aa78b661 | 12011 | } |
378cc40b | 12012 | } |
79072805 | 12013 | |
5db06880 NC |
12014 | #ifdef PERL_MAD |
12015 | if (PL_madskills) { | |
12016 | if (modstart != s) | |
12017 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
12018 | append_madprops(PL_thismad, (OP*)pm, 0); |
12019 | PL_thismad = 0; | |
5db06880 NC |
12020 | } |
12021 | #endif | |
a2a5de95 NC |
12022 | if ((pm->op_pmflags & PMf_CONTINUE)) { |
12023 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
12024 | } |
12025 | ||
79072805 | 12026 | if (es) { |
6136c704 AL |
12027 | SV * const repl = newSVpvs(""); |
12028 | ||
0244c3a4 GS |
12029 | PL_sublex_info.super_bufptr = s; |
12030 | PL_sublex_info.super_bufend = PL_bufend; | |
12031 | PL_multi_end = 0; | |
79072805 | 12032 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
12033 | while (es-- > 0) { |
12034 | if (es) | |
12035 | sv_catpvs(repl, "eval "); | |
12036 | else | |
12037 | sv_catpvs(repl, "do "); | |
12038 | } | |
6f43d98f | 12039 | sv_catpvs(repl, "{"); |
3280af22 | 12040 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
12041 | if (strchr(SvPVX(PL_lex_repl), '#')) |
12042 | sv_catpvs(repl, "\n"); | |
12043 | sv_catpvs(repl, "}"); | |
25da4f38 | 12044 | SvEVALED_on(repl); |
3280af22 NIS |
12045 | SvREFCNT_dec(PL_lex_repl); |
12046 | PL_lex_repl = repl; | |
378cc40b | 12047 | } |
79072805 | 12048 | |
3280af22 | 12049 | PL_lex_op = (OP*)pm; |
6154021b | 12050 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
12051 | return s; |
12052 | } | |
12053 | ||
76e3520e | 12054 | STATIC char * |
cea2e8a9 | 12055 | S_scan_trans(pTHX_ char *start) |
378cc40b | 12056 | { |
97aff369 | 12057 | dVAR; |
a0d0e21e | 12058 | register char* s; |
11343788 | 12059 | OP *o; |
79072805 | 12060 | short *tbl; |
b84c11c8 NC |
12061 | U8 squash; |
12062 | U8 del; | |
12063 | U8 complement; | |
5db06880 NC |
12064 | #ifdef PERL_MAD |
12065 | char *modstart; | |
12066 | #endif | |
79072805 | 12067 | |
7918f24d NC |
12068 | PERL_ARGS_ASSERT_SCAN_TRANS; |
12069 | ||
6154021b | 12070 | pl_yylval.ival = OP_NULL; |
79072805 | 12071 | |
5db06880 | 12072 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 12073 | if (!s) |
cea2e8a9 | 12074 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 12075 | |
3280af22 | 12076 | if (s[-1] == PL_multi_open) |
2f3197b3 | 12077 | s--; |
5db06880 NC |
12078 | #ifdef PERL_MAD |
12079 | if (PL_madskills) { | |
cd81e915 NC |
12080 | CURMAD('q', PL_thisopen); |
12081 | CURMAD('_', PL_thiswhite); | |
12082 | CURMAD('E', PL_thisstuff); | |
12083 | CURMAD('Q', PL_thisclose); | |
12084 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
12085 | } |
12086 | #endif | |
2f3197b3 | 12087 | |
5db06880 | 12088 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 12089 | if (!s) { |
37fd879b | 12090 | if (PL_lex_stuff) { |
3280af22 | 12091 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 12092 | PL_lex_stuff = NULL; |
37fd879b | 12093 | } |
cea2e8a9 | 12094 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 12095 | } |
5db06880 | 12096 | if (PL_madskills) { |
cd81e915 NC |
12097 | CURMAD('z', PL_thisopen); |
12098 | CURMAD('R', PL_thisstuff); | |
12099 | CURMAD('Z', PL_thisclose); | |
5db06880 | 12100 | } |
79072805 | 12101 | |
a0ed51b3 | 12102 | complement = del = squash = 0; |
5db06880 NC |
12103 | #ifdef PERL_MAD |
12104 | modstart = s; | |
12105 | #endif | |
7a1e2023 NC |
12106 | while (1) { |
12107 | switch (*s) { | |
12108 | case 'c': | |
79072805 | 12109 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
12110 | break; |
12111 | case 'd': | |
a0ed51b3 | 12112 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
12113 | break; |
12114 | case 's': | |
79072805 | 12115 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
12116 | break; |
12117 | default: | |
12118 | goto no_more; | |
12119 | } | |
395c3793 LW |
12120 | s++; |
12121 | } | |
7a1e2023 | 12122 | no_more: |
8973db79 | 12123 | |
aa1f7c5b | 12124 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 12125 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
12126 | o->op_private &= ~OPpTRANS_ALL; |
12127 | o->op_private |= del|squash|complement| | |
7948272d NIS |
12128 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
12129 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 12130 | |
3280af22 | 12131 | PL_lex_op = o; |
6154021b | 12132 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
12133 | |
12134 | #ifdef PERL_MAD | |
12135 | if (PL_madskills) { | |
12136 | if (modstart != s) | |
12137 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
12138 | append_madprops(PL_thismad, o, 0); |
12139 | PL_thismad = 0; | |
5db06880 NC |
12140 | } |
12141 | #endif | |
12142 | ||
79072805 LW |
12143 | return s; |
12144 | } | |
12145 | ||
76e3520e | 12146 | STATIC char * |
cea2e8a9 | 12147 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 12148 | { |
97aff369 | 12149 | dVAR; |
79072805 LW |
12150 | SV *herewas; |
12151 | I32 op_type = OP_SCALAR; | |
12152 | I32 len; | |
12153 | SV *tmpstr; | |
12154 | char term; | |
73d840c0 | 12155 | const char *found_newline; |
79072805 | 12156 | register char *d; |
fc36a67e | 12157 | register char *e; |
4633a7c4 | 12158 | char *peek; |
f54cb97a | 12159 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
12160 | #ifdef PERL_MAD |
12161 | I32 stuffstart = s - SvPVX(PL_linestr); | |
12162 | char *tstart; | |
12163 | ||
cd81e915 | 12164 | PL_realtokenstart = -1; |
5db06880 | 12165 | #endif |
79072805 | 12166 | |
7918f24d NC |
12167 | PERL_ARGS_ASSERT_SCAN_HEREDOC; |
12168 | ||
79072805 | 12169 | s += 2; |
3280af22 NIS |
12170 | d = PL_tokenbuf; |
12171 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 12172 | if (!outer) |
79072805 | 12173 | *d++ = '\n'; |
c35e046a AL |
12174 | peek = s; |
12175 | while (SPACE_OR_TAB(*peek)) | |
12176 | peek++; | |
3792a11b | 12177 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 12178 | s = peek; |
79072805 | 12179 | term = *s++; |
3280af22 | 12180 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 12181 | d += len; |
3280af22 | 12182 | if (s < PL_bufend) |
79072805 | 12183 | s++; |
79072805 LW |
12184 | } |
12185 | else { | |
12186 | if (*s == '\\') | |
12187 | s++, term = '\''; | |
12188 | else | |
12189 | term = '"'; | |
7e2040f0 | 12190 | if (!isALNUM_lazy_if(s,UTF)) |
8ab8f082 | 12191 | deprecate("bare << to mean <<\"\""); |
7e2040f0 | 12192 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 12193 | if (d < e) |
12194 | *d++ = *s; | |
12195 | } | |
12196 | } | |
3280af22 | 12197 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 12198 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
12199 | *d++ = '\n'; |
12200 | *d = '\0'; | |
3280af22 | 12201 | len = d - PL_tokenbuf; |
5db06880 NC |
12202 | |
12203 | #ifdef PERL_MAD | |
12204 | if (PL_madskills) { | |
12205 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 12206 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 12207 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 12208 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
12209 | stuffstart = s - SvPVX(PL_linestr); |
12210 | } | |
12211 | #endif | |
6a27c188 | 12212 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
12213 | d = strchr(s, '\r'); |
12214 | if (d) { | |
b464bac0 | 12215 | char * const olds = s; |
f63a84b2 | 12216 | s = d; |
3280af22 | 12217 | while (s < PL_bufend) { |
f63a84b2 LW |
12218 | if (*s == '\r') { |
12219 | *d++ = '\n'; | |
12220 | if (*++s == '\n') | |
12221 | s++; | |
12222 | } | |
12223 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
12224 | *d++ = *s++; | |
12225 | s++; | |
12226 | } | |
12227 | else | |
12228 | *d++ = *s++; | |
12229 | } | |
12230 | *d = '\0'; | |
3280af22 | 12231 | PL_bufend = d; |
95a20fc0 | 12232 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
12233 | s = olds; |
12234 | } | |
12235 | #endif | |
5db06880 NC |
12236 | #ifdef PERL_MAD |
12237 | found_newline = 0; | |
12238 | #endif | |
10edeb5d | 12239 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
12240 | herewas = newSVpvn(s,PL_bufend-s); |
12241 | } | |
12242 | else { | |
5db06880 NC |
12243 | #ifdef PERL_MAD |
12244 | herewas = newSVpvn(s-1,found_newline-s+1); | |
12245 | #else | |
73d840c0 AL |
12246 | s--; |
12247 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 12248 | #endif |
73d840c0 | 12249 | } |
5db06880 NC |
12250 | #ifdef PERL_MAD |
12251 | if (PL_madskills) { | |
12252 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12253 | if (PL_thisstuff) |
12254 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 12255 | else |
cd81e915 | 12256 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
12257 | } |
12258 | #endif | |
79072805 | 12259 | s += SvCUR(herewas); |
748a9306 | 12260 | |
5db06880 NC |
12261 | #ifdef PERL_MAD |
12262 | stuffstart = s - SvPVX(PL_linestr); | |
12263 | ||
12264 | if (found_newline) | |
12265 | s--; | |
12266 | #endif | |
12267 | ||
7d0a29fe NC |
12268 | tmpstr = newSV_type(SVt_PVIV); |
12269 | SvGROW(tmpstr, 80); | |
748a9306 | 12270 | if (term == '\'') { |
79072805 | 12271 | op_type = OP_CONST; |
45977657 | 12272 | SvIV_set(tmpstr, -1); |
748a9306 LW |
12273 | } |
12274 | else if (term == '`') { | |
79072805 | 12275 | op_type = OP_BACKTICK; |
45977657 | 12276 | SvIV_set(tmpstr, '\\'); |
748a9306 | 12277 | } |
79072805 LW |
12278 | |
12279 | CLINE; | |
57843af0 | 12280 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
12281 | PL_multi_open = PL_multi_close = '<'; |
12282 | term = *PL_tokenbuf; | |
0244c3a4 | 12283 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
12284 | char * const bufptr = PL_sublex_info.super_bufptr; |
12285 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 12286 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
12287 | s = strchr(bufptr, '\n'); |
12288 | if (!s) | |
12289 | s = bufend; | |
12290 | d = s; | |
12291 | while (s < bufend && | |
12292 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
12293 | if (*s++ == '\n') | |
57843af0 | 12294 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
12295 | } |
12296 | if (s >= bufend) { | |
eb160463 | 12297 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
12298 | missingterm(PL_tokenbuf); |
12299 | } | |
12300 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
12301 | sv_setpvn(tmpstr,d+1,s-d); | |
12302 | s += len - 1; | |
12303 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 12304 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
12305 | |
12306 | s = olds; | |
12307 | goto retval; | |
12308 | } | |
12309 | else if (!outer) { | |
79072805 | 12310 | d = s; |
3280af22 NIS |
12311 | while (s < PL_bufend && |
12312 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 12313 | if (*s++ == '\n') |
57843af0 | 12314 | CopLINE_inc(PL_curcop); |
79072805 | 12315 | } |
3280af22 | 12316 | if (s >= PL_bufend) { |
eb160463 | 12317 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12318 | missingterm(PL_tokenbuf); |
79072805 LW |
12319 | } |
12320 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
12321 | #ifdef PERL_MAD |
12322 | if (PL_madskills) { | |
cd81e915 NC |
12323 | if (PL_thisstuff) |
12324 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 12325 | else |
cd81e915 | 12326 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
12327 | stuffstart = s - SvPVX(PL_linestr); |
12328 | } | |
12329 | #endif | |
79072805 | 12330 | s += len - 1; |
57843af0 | 12331 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 12332 | |
3280af22 NIS |
12333 | sv_catpvn(herewas,s,PL_bufend-s); |
12334 | sv_setsv(PL_linestr,herewas); | |
12335 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
12336 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 12337 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
12338 | } |
12339 | else | |
76f68e9b | 12340 | sv_setpvs(tmpstr,""); /* avoid "uninitialized" warning */ |
3280af22 | 12341 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
12342 | #ifdef PERL_MAD |
12343 | if (PL_madskills) { | |
12344 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12345 | if (PL_thisstuff) |
12346 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12347 | else |
cd81e915 | 12348 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12349 | } |
12350 | #endif | |
f0e67a1d | 12351 | PL_bufptr = s; |
17cc9359 | 12352 | CopLINE_inc(PL_curcop); |
f0e67a1d | 12353 | if (!outer || !lex_next_chunk(0)) { |
eb160463 | 12354 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12355 | missingterm(PL_tokenbuf); |
79072805 | 12356 | } |
17cc9359 | 12357 | CopLINE_dec(PL_curcop); |
f0e67a1d | 12358 | s = PL_bufptr; |
5db06880 NC |
12359 | #ifdef PERL_MAD |
12360 | stuffstart = s - SvPVX(PL_linestr); | |
12361 | #endif | |
57843af0 | 12362 | CopLINE_inc(PL_curcop); |
3280af22 | 12363 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 12364 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 12365 | #ifndef PERL_STRICT_CR |
3280af22 | 12366 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
12367 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
12368 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 12369 | { |
3280af22 NIS |
12370 | PL_bufend[-2] = '\n'; |
12371 | PL_bufend--; | |
95a20fc0 | 12372 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 12373 | } |
3280af22 NIS |
12374 | else if (PL_bufend[-1] == '\r') |
12375 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12376 | } |
3280af22 NIS |
12377 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
12378 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12379 | #endif |
3280af22 | 12380 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 12381 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 12382 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
12383 | sv_catsv(PL_linestr,herewas); |
12384 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 12385 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
12386 | } |
12387 | else { | |
3280af22 NIS |
12388 | s = PL_bufend; |
12389 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
12390 | } |
12391 | } | |
79072805 | 12392 | s++; |
0244c3a4 | 12393 | retval: |
57843af0 | 12394 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 12395 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 12396 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 12397 | } |
8990e307 | 12398 | SvREFCNT_dec(herewas); |
2f31ce75 | 12399 | if (!IN_BYTES) { |
95a20fc0 | 12400 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
12401 | SvUTF8_on(tmpstr); |
12402 | else if (PL_encoding) | |
12403 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
12404 | } | |
3280af22 | 12405 | PL_lex_stuff = tmpstr; |
6154021b | 12406 | pl_yylval.ival = op_type; |
79072805 LW |
12407 | return s; |
12408 | } | |
12409 | ||
02aa26ce NT |
12410 | /* scan_inputsymbol |
12411 | takes: current position in input buffer | |
12412 | returns: new position in input buffer | |
6154021b | 12413 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
12414 | |
12415 | This code handles: | |
12416 | ||
12417 | <> read from ARGV | |
12418 | <FH> read from filehandle | |
12419 | <pkg::FH> read from package qualified filehandle | |
12420 | <pkg'FH> read from package qualified filehandle | |
12421 | <$fh> read from filehandle in $fh | |
12422 | <*.h> filename glob | |
12423 | ||
12424 | */ | |
12425 | ||
76e3520e | 12426 | STATIC char * |
cea2e8a9 | 12427 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 12428 | { |
97aff369 | 12429 | dVAR; |
02aa26ce | 12430 | register char *s = start; /* current position in buffer */ |
1b420867 | 12431 | char *end; |
79072805 | 12432 | I32 len; |
6136c704 AL |
12433 | char *d = PL_tokenbuf; /* start of temp holding space */ |
12434 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
12435 | ||
7918f24d NC |
12436 | PERL_ARGS_ASSERT_SCAN_INPUTSYMBOL; |
12437 | ||
1b420867 GS |
12438 | end = strchr(s, '\n'); |
12439 | if (!end) | |
12440 | end = PL_bufend; | |
12441 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
12442 | |
12443 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 12444 | or if it didn't end, or if we see a newline |
02aa26ce NT |
12445 | */ |
12446 | ||
bb7a0f54 | 12447 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 12448 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 12449 | if (s >= end) |
cea2e8a9 | 12450 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 12451 | |
fc36a67e | 12452 | s++; |
02aa26ce NT |
12453 | |
12454 | /* check for <$fh> | |
12455 | Remember, only scalar variables are interpreted as filehandles by | |
12456 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
12457 | treated as a glob() call. | |
12458 | This code makes use of the fact that except for the $ at the front, | |
12459 | a scalar variable and a filehandle look the same. | |
12460 | */ | |
4633a7c4 | 12461 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
12462 | |
12463 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 12464 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 12465 | d++; |
02aa26ce NT |
12466 | |
12467 | /* If we've tried to read what we allow filehandles to look like, and | |
12468 | there's still text left, then it must be a glob() and not a getline. | |
12469 | Use scan_str to pull out the stuff between the <> and treat it | |
12470 | as nothing more than a string. | |
12471 | */ | |
12472 | ||
3280af22 | 12473 | if (d - PL_tokenbuf != len) { |
6154021b | 12474 | pl_yylval.ival = OP_GLOB; |
5db06880 | 12475 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 12476 | if (!s) |
cea2e8a9 | 12477 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
12478 | return s; |
12479 | } | |
395c3793 | 12480 | else { |
9b3023bc | 12481 | bool readline_overriden = FALSE; |
6136c704 | 12482 | GV *gv_readline; |
9b3023bc | 12483 | GV **gvp; |
02aa26ce | 12484 | /* we're in a filehandle read situation */ |
3280af22 | 12485 | d = PL_tokenbuf; |
02aa26ce NT |
12486 | |
12487 | /* turn <> into <ARGV> */ | |
79072805 | 12488 | if (!len) |
689badd5 | 12489 | Copy("ARGV",d,5,char); |
02aa26ce | 12490 | |
9b3023bc | 12491 | /* Check whether readline() is overriden */ |
fafc274c | 12492 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 12493 | if ((gv_readline |
ba979b31 | 12494 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 12495 | || |
017a3ce5 | 12496 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 12497 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 12498 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
12499 | readline_overriden = TRUE; |
12500 | ||
02aa26ce NT |
12501 | /* if <$fh>, create the ops to turn the variable into a |
12502 | filehandle | |
12503 | */ | |
79072805 | 12504 | if (*d == '$') { |
02aa26ce NT |
12505 | /* try to find it in the pad for this block, otherwise find |
12506 | add symbol table ops | |
12507 | */ | |
f8f98e0a | 12508 | const PADOFFSET tmp = pad_findmy(d, len, 0); |
bbd11bfc | 12509 | if (tmp != NOT_IN_PAD) { |
00b1698f | 12510 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
12511 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
12512 | HEK * const stashname = HvNAME_HEK(stash); | |
12513 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 12514 | sv_catpvs(sym, "::"); |
f558d5af JH |
12515 | sv_catpv(sym, d+1); |
12516 | d = SvPVX(sym); | |
12517 | goto intro_sym; | |
12518 | } | |
12519 | else { | |
6136c704 | 12520 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 12521 | o->op_targ = tmp; |
9b3023bc RGS |
12522 | PL_lex_op = readline_overriden |
12523 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12524 | append_elem(OP_LIST, o, | |
12525 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
12526 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 12527 | } |
a0d0e21e LW |
12528 | } |
12529 | else { | |
f558d5af JH |
12530 | GV *gv; |
12531 | ++d; | |
12532 | intro_sym: | |
12533 | gv = gv_fetchpv(d, | |
12534 | (PL_in_eval | |
12535 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 12536 | : GV_ADDMULTI), |
f558d5af | 12537 | SVt_PV); |
9b3023bc RGS |
12538 | PL_lex_op = readline_overriden |
12539 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12540 | append_elem(OP_LIST, | |
12541 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
12542 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12543 | : (OP*)newUNOP(OP_READLINE, 0, | |
12544 | newUNOP(OP_RV2SV, 0, | |
12545 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 12546 | } |
7c6fadd6 RGS |
12547 | if (!readline_overriden) |
12548 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
12549 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
12550 | pl_yylval.ival = OP_NULL; | |
79072805 | 12551 | } |
02aa26ce NT |
12552 | |
12553 | /* If it's none of the above, it must be a literal filehandle | |
12554 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 12555 | else { |
6136c704 | 12556 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
12557 | PL_lex_op = readline_overriden |
12558 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12559 | append_elem(OP_LIST, | |
12560 | newGVOP(OP_GV, 0, gv), | |
12561 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12562 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 12563 | pl_yylval.ival = OP_NULL; |
79072805 LW |
12564 | } |
12565 | } | |
02aa26ce | 12566 | |
79072805 LW |
12567 | return s; |
12568 | } | |
12569 | ||
02aa26ce NT |
12570 | |
12571 | /* scan_str | |
12572 | takes: start position in buffer | |
09bef843 SB |
12573 | keep_quoted preserve \ on the embedded delimiter(s) |
12574 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
12575 | returns: position to continue reading from buffer |
12576 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
12577 | updates the read buffer. | |
12578 | ||
12579 | This subroutine pulls a string out of the input. It is called for: | |
12580 | q single quotes q(literal text) | |
12581 | ' single quotes 'literal text' | |
12582 | qq double quotes qq(interpolate $here please) | |
12583 | " double quotes "interpolate $here please" | |
12584 | qx backticks qx(/bin/ls -l) | |
12585 | ` backticks `/bin/ls -l` | |
12586 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
12587 | m// regexp match m/this/ | |
12588 | s/// regexp substitute s/this/that/ | |
12589 | tr/// string transliterate tr/this/that/ | |
12590 | y/// string transliterate y/this/that/ | |
12591 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 12592 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
12593 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
12594 | ||
12595 | In most of these cases (all but <>, patterns and transliterate) | |
12596 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
12597 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
12598 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
12599 | calls scan_str(). | |
4e553d73 | 12600 | |
02aa26ce NT |
12601 | It skips whitespace before the string starts, and treats the first |
12602 | character as the delimiter. If the delimiter is one of ([{< then | |
12603 | the corresponding "close" character )]}> is used as the closing | |
12604 | delimiter. It allows quoting of delimiters, and if the string has | |
12605 | balanced delimiters ([{<>}]) it allows nesting. | |
12606 | ||
37fd879b HS |
12607 | On success, the SV with the resulting string is put into lex_stuff or, |
12608 | if that is already non-NULL, into lex_repl. The second case occurs only | |
12609 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
12610 | For convenience, the terminating delimiter character is stuffed into | |
12611 | SvIVX of the SV. | |
02aa26ce NT |
12612 | */ |
12613 | ||
76e3520e | 12614 | STATIC char * |
09bef843 | 12615 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 12616 | { |
97aff369 | 12617 | dVAR; |
02aa26ce | 12618 | SV *sv; /* scalar value: string */ |
d3fcec1f | 12619 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
12620 | register char *s = start; /* current position in the buffer */ |
12621 | register char term; /* terminating character */ | |
12622 | register char *to; /* current position in the sv's data */ | |
12623 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 12624 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 12625 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 12626 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 12627 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 12628 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
12629 | #ifdef PERL_MAD |
12630 | int stuffstart; | |
12631 | char *tstart; | |
12632 | #endif | |
02aa26ce | 12633 | |
7918f24d NC |
12634 | PERL_ARGS_ASSERT_SCAN_STR; |
12635 | ||
02aa26ce | 12636 | /* skip space before the delimiter */ |
29595ff2 NC |
12637 | if (isSPACE(*s)) { |
12638 | s = PEEKSPACE(s); | |
12639 | } | |
02aa26ce | 12640 | |
5db06880 | 12641 | #ifdef PERL_MAD |
cd81e915 NC |
12642 | if (PL_realtokenstart >= 0) { |
12643 | stuffstart = PL_realtokenstart; | |
12644 | PL_realtokenstart = -1; | |
5db06880 NC |
12645 | } |
12646 | else | |
12647 | stuffstart = start - SvPVX(PL_linestr); | |
12648 | #endif | |
02aa26ce | 12649 | /* mark where we are, in case we need to report errors */ |
79072805 | 12650 | CLINE; |
02aa26ce NT |
12651 | |
12652 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 12653 | term = *s; |
220e2d4e IH |
12654 | if (!UTF) { |
12655 | termcode = termstr[0] = term; | |
12656 | termlen = 1; | |
12657 | } | |
12658 | else { | |
f3b9ce0f | 12659 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
12660 | Copy(s, termstr, termlen, U8); |
12661 | if (!UTF8_IS_INVARIANT(term)) | |
12662 | has_utf8 = TRUE; | |
12663 | } | |
b1c7b182 | 12664 | |
02aa26ce | 12665 | /* mark where we are */ |
57843af0 | 12666 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 12667 | PL_multi_open = term; |
02aa26ce NT |
12668 | |
12669 | /* find corresponding closing delimiter */ | |
93a17b20 | 12670 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
12671 | termcode = termstr[0] = term = tmps[5]; |
12672 | ||
3280af22 | 12673 | PL_multi_close = term; |
79072805 | 12674 | |
561b68a9 SH |
12675 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
12676 | What a random number. */ | |
7d0a29fe NC |
12677 | sv = newSV_type(SVt_PVIV); |
12678 | SvGROW(sv, 80); | |
45977657 | 12679 | SvIV_set(sv, termcode); |
a0d0e21e | 12680 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
12681 | |
12682 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 12683 | if (keep_delims) |
220e2d4e IH |
12684 | sv_catpvn(sv, s, termlen); |
12685 | s += termlen; | |
5db06880 NC |
12686 | #ifdef PERL_MAD |
12687 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12688 | if (!PL_thisopen && !keep_delims) { |
12689 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
12690 | stuffstart = s - SvPVX(PL_linestr); |
12691 | } | |
12692 | #endif | |
93a17b20 | 12693 | for (;;) { |
220e2d4e IH |
12694 | if (PL_encoding && !UTF) { |
12695 | bool cont = TRUE; | |
12696 | ||
12697 | while (cont) { | |
95a20fc0 | 12698 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 12699 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 12700 | &offset, (char*)termstr, termlen); |
6136c704 AL |
12701 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
12702 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
12703 | |
12704 | for (; s < ns; s++) { | |
12705 | if (*s == '\n' && !PL_rsfp) | |
12706 | CopLINE_inc(PL_curcop); | |
12707 | } | |
12708 | if (!found) | |
12709 | goto read_more_line; | |
12710 | else { | |
12711 | /* handle quoted delimiters */ | |
52327caf | 12712 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 12713 | const char *t; |
95a20fc0 | 12714 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
12715 | t--; |
12716 | if ((svlast-1 - t) % 2) { | |
12717 | if (!keep_quoted) { | |
12718 | *(svlast-1) = term; | |
12719 | *svlast = '\0'; | |
12720 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12721 | } | |
12722 | continue; | |
12723 | } | |
12724 | } | |
12725 | if (PL_multi_open == PL_multi_close) { | |
12726 | cont = FALSE; | |
12727 | } | |
12728 | else { | |
f54cb97a AL |
12729 | const char *t; |
12730 | char *w; | |
0331ef07 | 12731 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
12732 | /* At here, all closes are "was quoted" one, |
12733 | so we don't check PL_multi_close. */ | |
12734 | if (*t == '\\') { | |
12735 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
12736 | t++; | |
12737 | else | |
12738 | *w++ = *t++; | |
12739 | } | |
12740 | else if (*t == PL_multi_open) | |
12741 | brackets++; | |
12742 | ||
12743 | *w = *t; | |
12744 | } | |
12745 | if (w < t) { | |
12746 | *w++ = term; | |
12747 | *w = '\0'; | |
95a20fc0 | 12748 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 12749 | } |
0331ef07 | 12750 | last_off = w - SvPVX(sv); |
220e2d4e IH |
12751 | if (--brackets <= 0) |
12752 | cont = FALSE; | |
12753 | } | |
12754 | } | |
12755 | } | |
12756 | if (!keep_delims) { | |
12757 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12758 | *SvEND(sv) = '\0'; | |
12759 | } | |
12760 | break; | |
12761 | } | |
12762 | ||
02aa26ce | 12763 | /* extend sv if need be */ |
3280af22 | 12764 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 12765 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 12766 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 12767 | |
02aa26ce | 12768 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
12769 | if (PL_multi_open == PL_multi_close) { |
12770 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 12771 | /* embedded newlines increment the current line number */ |
3280af22 | 12772 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12773 | CopLINE_inc(PL_curcop); |
02aa26ce | 12774 | /* handle quoted delimiters */ |
3280af22 | 12775 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 12776 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 12777 | s++; |
02aa26ce | 12778 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
12779 | else |
12780 | *to++ = *s++; | |
12781 | } | |
02aa26ce NT |
12782 | /* terminate when run out of buffer (the for() condition), or |
12783 | have found the terminator */ | |
220e2d4e IH |
12784 | else if (*s == term) { |
12785 | if (termlen == 1) | |
12786 | break; | |
f3b9ce0f | 12787 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
12788 | break; |
12789 | } | |
63cd0674 | 12790 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12791 | has_utf8 = TRUE; |
93a17b20 LW |
12792 | *to = *s; |
12793 | } | |
12794 | } | |
02aa26ce NT |
12795 | |
12796 | /* if the terminator isn't the same as the start character (e.g., | |
12797 | matched brackets), we have to allow more in the quoting, and | |
12798 | be prepared for nested brackets. | |
12799 | */ | |
93a17b20 | 12800 | else { |
02aa26ce | 12801 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 12802 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 12803 | /* embedded newlines increment the line count */ |
3280af22 | 12804 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12805 | CopLINE_inc(PL_curcop); |
02aa26ce | 12806 | /* backslashes can escape the open or closing characters */ |
3280af22 | 12807 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
12808 | if (!keep_quoted && |
12809 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
12810 | s++; |
12811 | else | |
12812 | *to++ = *s++; | |
12813 | } | |
02aa26ce | 12814 | /* allow nested opens and closes */ |
3280af22 | 12815 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 12816 | break; |
3280af22 | 12817 | else if (*s == PL_multi_open) |
93a17b20 | 12818 | brackets++; |
63cd0674 | 12819 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12820 | has_utf8 = TRUE; |
93a17b20 LW |
12821 | *to = *s; |
12822 | } | |
12823 | } | |
02aa26ce | 12824 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 12825 | *to = '\0'; |
95a20fc0 | 12826 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 12827 | |
02aa26ce NT |
12828 | /* |
12829 | * this next chunk reads more into the buffer if we're not done yet | |
12830 | */ | |
12831 | ||
b1c7b182 GS |
12832 | if (s < PL_bufend) |
12833 | break; /* handle case where we are done yet :-) */ | |
79072805 | 12834 | |
6a27c188 | 12835 | #ifndef PERL_STRICT_CR |
95a20fc0 | 12836 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
12837 | if ((to[-2] == '\r' && to[-1] == '\n') || |
12838 | (to[-2] == '\n' && to[-1] == '\r')) | |
12839 | { | |
f63a84b2 LW |
12840 | to[-2] = '\n'; |
12841 | to--; | |
95a20fc0 | 12842 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
12843 | } |
12844 | else if (to[-1] == '\r') | |
12845 | to[-1] = '\n'; | |
12846 | } | |
95a20fc0 | 12847 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
12848 | to[-1] = '\n'; |
12849 | #endif | |
12850 | ||
220e2d4e | 12851 | read_more_line: |
02aa26ce NT |
12852 | /* if we're out of file, or a read fails, bail and reset the current |
12853 | line marker so we can report where the unterminated string began | |
12854 | */ | |
5db06880 NC |
12855 | #ifdef PERL_MAD |
12856 | if (PL_madskills) { | |
c35e046a | 12857 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
12858 | if (PL_thisstuff) |
12859 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12860 | else |
cd81e915 | 12861 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12862 | } |
12863 | #endif | |
f0e67a1d Z |
12864 | CopLINE_inc(PL_curcop); |
12865 | PL_bufptr = PL_bufend; | |
12866 | if (!lex_next_chunk(0)) { | |
c07a80fd | 12867 | sv_free(sv); |
eb160463 | 12868 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 12869 | return NULL; |
79072805 | 12870 | } |
f0e67a1d | 12871 | s = PL_bufptr; |
5db06880 NC |
12872 | #ifdef PERL_MAD |
12873 | stuffstart = 0; | |
12874 | #endif | |
378cc40b | 12875 | } |
4e553d73 | 12876 | |
02aa26ce NT |
12877 | /* at this point, we have successfully read the delimited string */ |
12878 | ||
220e2d4e | 12879 | if (!PL_encoding || UTF) { |
5db06880 NC |
12880 | #ifdef PERL_MAD |
12881 | if (PL_madskills) { | |
c35e046a | 12882 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 12883 | const int len = s - tstart; |
cd81e915 | 12884 | if (PL_thisstuff) |
c35e046a | 12885 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12886 | else |
c35e046a | 12887 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12888 | if (!PL_thisclose && !keep_delims) |
12889 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
12890 | } |
12891 | #endif | |
12892 | ||
220e2d4e IH |
12893 | if (keep_delims) |
12894 | sv_catpvn(sv, s, termlen); | |
12895 | s += termlen; | |
12896 | } | |
5db06880 NC |
12897 | #ifdef PERL_MAD |
12898 | else { | |
12899 | if (PL_madskills) { | |
c35e046a AL |
12900 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
12901 | const int len = s - tstart - termlen; | |
cd81e915 | 12902 | if (PL_thisstuff) |
c35e046a | 12903 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12904 | else |
c35e046a | 12905 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12906 | if (!PL_thisclose && !keep_delims) |
12907 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
12908 | } |
12909 | } | |
12910 | #endif | |
220e2d4e | 12911 | if (has_utf8 || PL_encoding) |
b1c7b182 | 12912 | SvUTF8_on(sv); |
d0063567 | 12913 | |
57843af0 | 12914 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
12915 | |
12916 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
12917 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
12918 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 12919 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 12920 | } |
02aa26ce NT |
12921 | |
12922 | /* decide whether this is the first or second quoted string we've read | |
12923 | for this op | |
12924 | */ | |
4e553d73 | 12925 | |
3280af22 NIS |
12926 | if (PL_lex_stuff) |
12927 | PL_lex_repl = sv; | |
79072805 | 12928 | else |
3280af22 | 12929 | PL_lex_stuff = sv; |
378cc40b LW |
12930 | return s; |
12931 | } | |
12932 | ||
02aa26ce NT |
12933 | /* |
12934 | scan_num | |
12935 | takes: pointer to position in buffer | |
12936 | returns: pointer to new position in buffer | |
6154021b | 12937 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
12938 | |
12939 | Read a number in any of the formats that Perl accepts: | |
12940 | ||
7fd134d9 JH |
12941 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
12942 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
12943 | 0b[01](_?[01])* |
12944 | 0[0-7](_?[0-7])* | |
12945 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 12946 | |
3280af22 | 12947 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
12948 | thing it reads. |
12949 | ||
12950 | If it reads a number without a decimal point or an exponent, it will | |
12951 | try converting the number to an integer and see if it can do so | |
12952 | without loss of precision. | |
12953 | */ | |
4e553d73 | 12954 | |
378cc40b | 12955 | char * |
bfed75c6 | 12956 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 12957 | { |
97aff369 | 12958 | dVAR; |
bfed75c6 | 12959 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
12960 | register char *d; /* destination in temp buffer */ |
12961 | register char *e; /* end of temp buffer */ | |
86554af2 | 12962 | NV nv; /* number read, as a double */ |
a0714e2c | 12963 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 12964 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 12965 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 12966 | static char const number_too_long[] = "Number too long"; |
378cc40b | 12967 | |
7918f24d NC |
12968 | PERL_ARGS_ASSERT_SCAN_NUM; |
12969 | ||
02aa26ce NT |
12970 | /* We use the first character to decide what type of number this is */ |
12971 | ||
378cc40b | 12972 | switch (*s) { |
79072805 | 12973 | default: |
cea2e8a9 | 12974 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 12975 | |
02aa26ce | 12976 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 12977 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
12978 | case '0': |
12979 | { | |
02aa26ce NT |
12980 | /* variables: |
12981 | u holds the "number so far" | |
4f19785b WSI |
12982 | shift the power of 2 of the base |
12983 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
12984 | overflowed was the number more than we can hold? |
12985 | ||
12986 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
12987 | we in octal/hex/binary?" indicator to disallow hex characters |
12988 | when in octal mode. | |
02aa26ce | 12989 | */ |
9e24b6e2 JH |
12990 | NV n = 0.0; |
12991 | UV u = 0; | |
79072805 | 12992 | I32 shift; |
9e24b6e2 | 12993 | bool overflowed = FALSE; |
61f33854 | 12994 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
12995 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
12996 | static const char* const bases[5] = | |
12997 | { "", "binary", "", "octal", "hexadecimal" }; | |
12998 | static const char* const Bases[5] = | |
12999 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
13000 | static const char* const maxima[5] = | |
13001 | { "", | |
13002 | "0b11111111111111111111111111111111", | |
13003 | "", | |
13004 | "037777777777", | |
13005 | "0xffffffff" }; | |
bfed75c6 | 13006 | const char *base, *Base, *max; |
378cc40b | 13007 | |
02aa26ce | 13008 | /* check for hex */ |
a674e8db | 13009 | if (s[1] == 'x' || s[1] == 'X') { |
378cc40b LW |
13010 | shift = 4; |
13011 | s += 2; | |
61f33854 | 13012 | just_zero = FALSE; |
a674e8db | 13013 | } else if (s[1] == 'b' || s[1] == 'B') { |
4f19785b WSI |
13014 | shift = 1; |
13015 | s += 2; | |
61f33854 | 13016 | just_zero = FALSE; |
378cc40b | 13017 | } |
02aa26ce | 13018 | /* check for a decimal in disguise */ |
b78218b7 | 13019 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 13020 | goto decimal; |
02aa26ce | 13021 | /* so it must be octal */ |
928753ea | 13022 | else { |
378cc40b | 13023 | shift = 3; |
928753ea JH |
13024 | s++; |
13025 | } | |
13026 | ||
13027 | if (*s == '_') { | |
a2a5de95 | 13028 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
13029 | "Misplaced _ in number"); |
13030 | lastub = s++; | |
13031 | } | |
9e24b6e2 JH |
13032 | |
13033 | base = bases[shift]; | |
13034 | Base = Bases[shift]; | |
13035 | max = maxima[shift]; | |
02aa26ce | 13036 | |
4f19785b | 13037 | /* read the rest of the number */ |
378cc40b | 13038 | for (;;) { |
9e24b6e2 | 13039 | /* x is used in the overflow test, |
893fe2c2 | 13040 | b is the digit we're adding on. */ |
9e24b6e2 | 13041 | UV x, b; |
55497cff | 13042 | |
378cc40b | 13043 | switch (*s) { |
02aa26ce NT |
13044 | |
13045 | /* if we don't mention it, we're done */ | |
378cc40b LW |
13046 | default: |
13047 | goto out; | |
02aa26ce | 13048 | |
928753ea | 13049 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 13050 | case '_': |
a2a5de95 NC |
13051 | if (lastub && s == lastub + 1) |
13052 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13053 | "Misplaced _ in number"); | |
928753ea | 13054 | lastub = s++; |
de3bb511 | 13055 | break; |
02aa26ce NT |
13056 | |
13057 | /* 8 and 9 are not octal */ | |
378cc40b | 13058 | case '8': case '9': |
4f19785b | 13059 | if (shift == 3) |
cea2e8a9 | 13060 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 13061 | /* FALL THROUGH */ |
02aa26ce NT |
13062 | |
13063 | /* octal digits */ | |
4f19785b | 13064 | case '2': case '3': case '4': |
378cc40b | 13065 | case '5': case '6': case '7': |
4f19785b | 13066 | if (shift == 1) |
cea2e8a9 | 13067 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
13068 | /* FALL THROUGH */ |
13069 | ||
13070 | case '0': case '1': | |
02aa26ce | 13071 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 13072 | goto digit; |
02aa26ce NT |
13073 | |
13074 | /* hex digits */ | |
378cc40b LW |
13075 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
13076 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 13077 | /* make sure they said 0x */ |
378cc40b LW |
13078 | if (shift != 4) |
13079 | goto out; | |
55497cff | 13080 | b = (*s++ & 7) + 9; |
02aa26ce NT |
13081 | |
13082 | /* Prepare to put the digit we have onto the end | |
13083 | of the number so far. We check for overflows. | |
13084 | */ | |
13085 | ||
55497cff | 13086 | digit: |
61f33854 | 13087 | just_zero = FALSE; |
9e24b6e2 JH |
13088 | if (!overflowed) { |
13089 | x = u << shift; /* make room for the digit */ | |
13090 | ||
13091 | if ((x >> shift) != u | |
13092 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
13093 | overflowed = TRUE; |
13094 | n = (NV) u; | |
9b387841 NC |
13095 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), |
13096 | "Integer overflow in %s number", | |
13097 | base); | |
9e24b6e2 JH |
13098 | } else |
13099 | u = x | b; /* add the digit to the end */ | |
13100 | } | |
13101 | if (overflowed) { | |
13102 | n *= nvshift[shift]; | |
13103 | /* If an NV has not enough bits in its | |
13104 | * mantissa to represent an UV this summing of | |
13105 | * small low-order numbers is a waste of time | |
13106 | * (because the NV cannot preserve the | |
13107 | * low-order bits anyway): we could just | |
13108 | * remember when did we overflow and in the | |
13109 | * end just multiply n by the right | |
13110 | * amount. */ | |
13111 | n += (NV) b; | |
55497cff | 13112 | } |
378cc40b LW |
13113 | break; |
13114 | } | |
13115 | } | |
02aa26ce NT |
13116 | |
13117 | /* if we get here, we had success: make a scalar value from | |
13118 | the number. | |
13119 | */ | |
378cc40b | 13120 | out: |
928753ea JH |
13121 | |
13122 | /* final misplaced underbar check */ | |
13123 | if (s[-1] == '_') { | |
a2a5de95 | 13124 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
13125 | } |
13126 | ||
9e24b6e2 | 13127 | if (overflowed) { |
a2a5de95 NC |
13128 | if (n > 4294967295.0) |
13129 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
13130 | "%s number > %s non-portable", | |
13131 | Base, max); | |
b081dd7e | 13132 | sv = newSVnv(n); |
9e24b6e2 JH |
13133 | } |
13134 | else { | |
15041a67 | 13135 | #if UVSIZE > 4 |
a2a5de95 NC |
13136 | if (u > 0xffffffff) |
13137 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
13138 | "%s number > %s non-portable", | |
13139 | Base, max); | |
2cc4c2dc | 13140 | #endif |
b081dd7e | 13141 | sv = newSVuv(u); |
9e24b6e2 | 13142 | } |
61f33854 | 13143 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 13144 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 13145 | sv, NULL, NULL, 0); |
61f33854 | 13146 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 13147 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
13148 | } |
13149 | break; | |
02aa26ce NT |
13150 | |
13151 | /* | |
13152 | handle decimal numbers. | |
13153 | we're also sent here when we read a 0 as the first digit | |
13154 | */ | |
378cc40b LW |
13155 | case '1': case '2': case '3': case '4': case '5': |
13156 | case '6': case '7': case '8': case '9': case '.': | |
13157 | decimal: | |
3280af22 NIS |
13158 | d = PL_tokenbuf; |
13159 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 13160 | floatit = FALSE; |
02aa26ce NT |
13161 | |
13162 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 13163 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 13164 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
13165 | if -w is on |
13166 | */ | |
93a17b20 | 13167 | if (*s == '_') { |
a2a5de95 NC |
13168 | if (lastub && s == lastub + 1) |
13169 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13170 | "Misplaced _ in number"); | |
928753ea | 13171 | lastub = s++; |
93a17b20 | 13172 | } |
fc36a67e | 13173 | else { |
02aa26ce | 13174 | /* check for end of fixed-length buffer */ |
fc36a67e | 13175 | if (d >= e) |
cea2e8a9 | 13176 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 13177 | /* if we're ok, copy the character */ |
378cc40b | 13178 | *d++ = *s++; |
fc36a67e | 13179 | } |
378cc40b | 13180 | } |
02aa26ce NT |
13181 | |
13182 | /* final misplaced underbar check */ | |
928753ea | 13183 | if (lastub && s == lastub + 1) { |
a2a5de95 | 13184 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 13185 | } |
02aa26ce NT |
13186 | |
13187 | /* read a decimal portion if there is one. avoid | |
13188 | 3..5 being interpreted as the number 3. followed | |
13189 | by .5 | |
13190 | */ | |
2f3197b3 | 13191 | if (*s == '.' && s[1] != '.') { |
79072805 | 13192 | floatit = TRUE; |
378cc40b | 13193 | *d++ = *s++; |
02aa26ce | 13194 | |
928753ea | 13195 | if (*s == '_') { |
a2a5de95 NC |
13196 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13197 | "Misplaced _ in number"); | |
928753ea JH |
13198 | lastub = s; |
13199 | } | |
13200 | ||
13201 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 13202 | */ |
fc36a67e | 13203 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 13204 | /* fixed length buffer check */ |
fc36a67e | 13205 | if (d >= e) |
cea2e8a9 | 13206 | Perl_croak(aTHX_ number_too_long); |
928753ea | 13207 | if (*s == '_') { |
a2a5de95 NC |
13208 | if (lastub && s == lastub + 1) |
13209 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13210 | "Misplaced _ in number"); | |
928753ea JH |
13211 | lastub = s; |
13212 | } | |
13213 | else | |
fc36a67e | 13214 | *d++ = *s; |
378cc40b | 13215 | } |
928753ea JH |
13216 | /* fractional part ending in underbar? */ |
13217 | if (s[-1] == '_') { | |
a2a5de95 NC |
13218 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13219 | "Misplaced _ in number"); | |
928753ea | 13220 | } |
dd629d5b GS |
13221 | if (*s == '.' && isDIGIT(s[1])) { |
13222 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 13223 | s = start; |
dd629d5b GS |
13224 | goto vstring; |
13225 | } | |
378cc40b | 13226 | } |
02aa26ce NT |
13227 | |
13228 | /* read exponent part, if present */ | |
3792a11b | 13229 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
13230 | floatit = TRUE; |
13231 | s++; | |
02aa26ce NT |
13232 | |
13233 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 13234 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 13235 | |
7fd134d9 JH |
13236 | /* stray preinitial _ */ |
13237 | if (*s == '_') { | |
a2a5de95 NC |
13238 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13239 | "Misplaced _ in number"); | |
7fd134d9 JH |
13240 | lastub = s++; |
13241 | } | |
13242 | ||
02aa26ce | 13243 | /* allow positive or negative exponent */ |
378cc40b LW |
13244 | if (*s == '+' || *s == '-') |
13245 | *d++ = *s++; | |
02aa26ce | 13246 | |
7fd134d9 JH |
13247 | /* stray initial _ */ |
13248 | if (*s == '_') { | |
a2a5de95 NC |
13249 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13250 | "Misplaced _ in number"); | |
7fd134d9 JH |
13251 | lastub = s++; |
13252 | } | |
13253 | ||
7fd134d9 JH |
13254 | /* read digits of exponent */ |
13255 | while (isDIGIT(*s) || *s == '_') { | |
13256 | if (isDIGIT(*s)) { | |
13257 | if (d >= e) | |
13258 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 13259 | *d++ = *s++; |
7fd134d9 JH |
13260 | } |
13261 | else { | |
041457d9 | 13262 | if (((lastub && s == lastub + 1) || |
a2a5de95 NC |
13263 | (!isDIGIT(s[1]) && s[1] != '_'))) |
13264 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13265 | "Misplaced _ in number"); | |
b3b48e3e | 13266 | lastub = s++; |
7fd134d9 | 13267 | } |
7fd134d9 | 13268 | } |
378cc40b | 13269 | } |
02aa26ce | 13270 | |
02aa26ce | 13271 | |
0b7fceb9 | 13272 | /* |
58bb9ec3 NC |
13273 | We try to do an integer conversion first if no characters |
13274 | indicating "float" have been found. | |
0b7fceb9 MU |
13275 | */ |
13276 | ||
13277 | if (!floatit) { | |
58bb9ec3 | 13278 | UV uv; |
6136c704 | 13279 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
13280 | |
13281 | if (flags == IS_NUMBER_IN_UV) { | |
13282 | if (uv <= IV_MAX) | |
b081dd7e | 13283 | sv = newSViv(uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 13284 | else |
b081dd7e | 13285 | sv = newSVuv(uv); |
58bb9ec3 NC |
13286 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
13287 | if (uv <= (UV) IV_MIN) | |
b081dd7e | 13288 | sv = newSViv(-(IV)uv); |
58bb9ec3 NC |
13289 | else |
13290 | floatit = TRUE; | |
13291 | } else | |
13292 | floatit = TRUE; | |
13293 | } | |
0b7fceb9 | 13294 | if (floatit) { |
58bb9ec3 NC |
13295 | /* terminate the string */ |
13296 | *d = '\0'; | |
86554af2 | 13297 | nv = Atof(PL_tokenbuf); |
b081dd7e | 13298 | sv = newSVnv(nv); |
86554af2 | 13299 | } |
86554af2 | 13300 | |
eb0d8d16 NC |
13301 | if ( floatit |
13302 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
13303 | const char *const key = floatit ? "float" : "integer"; | |
13304 | const STRLEN keylen = floatit ? 5 : 7; | |
13305 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
13306 | key, keylen, sv, NULL, NULL, 0); | |
13307 | } | |
378cc40b | 13308 | break; |
0b7fceb9 | 13309 | |
e312add1 | 13310 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 13311 | case 'v': |
dd629d5b | 13312 | vstring: |
561b68a9 | 13313 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 13314 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 13315 | break; |
79072805 | 13316 | } |
a687059c | 13317 | |
02aa26ce NT |
13318 | /* make the op for the constant and return */ |
13319 | ||
a86a20aa | 13320 | if (sv) |
b73d6f50 | 13321 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 13322 | else |
5f66b61c | 13323 | lvalp->opval = NULL; |
a687059c | 13324 | |
73d840c0 | 13325 | return (char *)s; |
378cc40b LW |
13326 | } |
13327 | ||
76e3520e | 13328 | STATIC char * |
cea2e8a9 | 13329 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 13330 | { |
97aff369 | 13331 | dVAR; |
79072805 | 13332 | register char *eol; |
378cc40b | 13333 | register char *t; |
6136c704 | 13334 | SV * const stuff = newSVpvs(""); |
79072805 | 13335 | bool needargs = FALSE; |
c5ee2135 | 13336 | bool eofmt = FALSE; |
5db06880 NC |
13337 | #ifdef PERL_MAD |
13338 | char *tokenstart = s; | |
4f61fd4b JC |
13339 | SV* savewhite = NULL; |
13340 | ||
5db06880 | 13341 | if (PL_madskills) { |
cd81e915 NC |
13342 | savewhite = PL_thiswhite; |
13343 | PL_thiswhite = 0; | |
5db06880 NC |
13344 | } |
13345 | #endif | |
378cc40b | 13346 | |
7918f24d NC |
13347 | PERL_ARGS_ASSERT_SCAN_FORMLINE; |
13348 | ||
79072805 | 13349 | while (!needargs) { |
a1b95068 | 13350 | if (*s == '.') { |
c35e046a | 13351 | t = s+1; |
51882d45 | 13352 | #ifdef PERL_STRICT_CR |
c35e046a AL |
13353 | while (SPACE_OR_TAB(*t)) |
13354 | t++; | |
51882d45 | 13355 | #else |
c35e046a AL |
13356 | while (SPACE_OR_TAB(*t) || *t == '\r') |
13357 | t++; | |
51882d45 | 13358 | #endif |
c5ee2135 WL |
13359 | if (*t == '\n' || t == PL_bufend) { |
13360 | eofmt = TRUE; | |
79072805 | 13361 | break; |
c5ee2135 | 13362 | } |
79072805 | 13363 | } |
3280af22 | 13364 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 13365 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 13366 | if (!eol++) |
3280af22 | 13367 | eol = PL_bufend; |
0f85fab0 LW |
13368 | } |
13369 | else | |
3280af22 | 13370 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 13371 | if (*s != '#') { |
a0d0e21e LW |
13372 | for (t = s; t < eol; t++) { |
13373 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
13374 | needargs = FALSE; | |
13375 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 13376 | } |
a0d0e21e LW |
13377 | if (*t == '@' || *t == '^') |
13378 | needargs = TRUE; | |
378cc40b | 13379 | } |
7121b347 MG |
13380 | if (eol > s) { |
13381 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 13382 | #ifndef PERL_STRICT_CR |
7121b347 MG |
13383 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
13384 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
13385 | end[-2] = '\n'; | |
13386 | end[-1] = '\0'; | |
b162af07 | 13387 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 13388 | } |
2dc4c65b | 13389 | #endif |
7121b347 MG |
13390 | } |
13391 | else | |
13392 | break; | |
79072805 | 13393 | } |
95a20fc0 | 13394 | s = (char*)eol; |
3280af22 | 13395 | if (PL_rsfp) { |
f0e67a1d | 13396 | bool got_some; |
5db06880 NC |
13397 | #ifdef PERL_MAD |
13398 | if (PL_madskills) { | |
cd81e915 NC |
13399 | if (PL_thistoken) |
13400 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 13401 | else |
cd81e915 | 13402 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
13403 | } |
13404 | #endif | |
f0e67a1d Z |
13405 | PL_bufptr = PL_bufend; |
13406 | CopLINE_inc(PL_curcop); | |
13407 | got_some = lex_next_chunk(0); | |
13408 | CopLINE_dec(PL_curcop); | |
13409 | s = PL_bufptr; | |
5db06880 | 13410 | #ifdef PERL_MAD |
f0e67a1d | 13411 | tokenstart = PL_bufptr; |
5db06880 | 13412 | #endif |
f0e67a1d | 13413 | if (!got_some) |
378cc40b | 13414 | break; |
378cc40b | 13415 | } |
463ee0b2 | 13416 | incline(s); |
79072805 | 13417 | } |
a0d0e21e LW |
13418 | enough: |
13419 | if (SvCUR(stuff)) { | |
3280af22 | 13420 | PL_expect = XTERM; |
79072805 | 13421 | if (needargs) { |
3280af22 | 13422 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 13423 | start_force(PL_curforce); |
9ded7720 | 13424 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
13425 | force_next(','); |
13426 | } | |
a0d0e21e | 13427 | else |
3280af22 | 13428 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 13429 | if (!IN_BYTES) { |
95a20fc0 | 13430 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
13431 | SvUTF8_on(stuff); |
13432 | else if (PL_encoding) | |
13433 | sv_recode_to_utf8(stuff, PL_encoding); | |
13434 | } | |
cd81e915 | 13435 | start_force(PL_curforce); |
9ded7720 | 13436 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 13437 | force_next(THING); |
cd81e915 | 13438 | start_force(PL_curforce); |
9ded7720 | 13439 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 13440 | force_next(LSTOP); |
378cc40b | 13441 | } |
79072805 | 13442 | else { |
8990e307 | 13443 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
13444 | if (eofmt) |
13445 | PL_lex_formbrack = 0; | |
3280af22 | 13446 | PL_bufptr = s; |
79072805 | 13447 | } |
5db06880 NC |
13448 | #ifdef PERL_MAD |
13449 | if (PL_madskills) { | |
cd81e915 NC |
13450 | if (PL_thistoken) |
13451 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 13452 | else |
cd81e915 NC |
13453 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
13454 | PL_thiswhite = savewhite; | |
5db06880 NC |
13455 | } |
13456 | #endif | |
79072805 | 13457 | return s; |
378cc40b | 13458 | } |
a687059c | 13459 | |
ba6d6ac9 | 13460 | I32 |
864dbfa3 | 13461 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 13462 | { |
97aff369 | 13463 | dVAR; |
a3b680e6 | 13464 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 13465 | CV* const outsidecv = PL_compcv; |
8990e307 | 13466 | |
3280af22 NIS |
13467 | if (PL_compcv) { |
13468 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 13469 | } |
7766f137 | 13470 | SAVEI32(PL_subline); |
3280af22 | 13471 | save_item(PL_subname); |
3280af22 | 13472 | SAVESPTR(PL_compcv); |
3280af22 | 13473 | |
ea726b52 | 13474 | PL_compcv = MUTABLE_CV(newSV_type(is_format ? SVt_PVFM : SVt_PVCV)); |
3280af22 NIS |
13475 | CvFLAGS(PL_compcv) |= flags; |
13476 | ||
57843af0 | 13477 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 13478 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
ea726b52 | 13479 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outsidecv)); |
a3985cdc | 13480 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 13481 | |
8990e307 LW |
13482 | return oldsavestack_ix; |
13483 | } | |
13484 | ||
084592ab CN |
13485 | #ifdef __SC__ |
13486 | #pragma segment Perl_yylex | |
13487 | #endif | |
af41e527 NC |
13488 | static int |
13489 | S_yywarn(pTHX_ const char *const s) | |
8990e307 | 13490 | { |
97aff369 | 13491 | dVAR; |
7918f24d NC |
13492 | |
13493 | PERL_ARGS_ASSERT_YYWARN; | |
13494 | ||
faef0170 | 13495 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 13496 | yyerror(s); |
faef0170 | 13497 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 13498 | return 0; |
8990e307 LW |
13499 | } |
13500 | ||
13501 | int | |
15f169a1 | 13502 | Perl_yyerror(pTHX_ const char *const s) |
463ee0b2 | 13503 | { |
97aff369 | 13504 | dVAR; |
bfed75c6 AL |
13505 | const char *where = NULL; |
13506 | const char *context = NULL; | |
68dc0745 | 13507 | int contlen = -1; |
46fc3d4c | 13508 | SV *msg; |
5912531f | 13509 | int yychar = PL_parser->yychar; |
463ee0b2 | 13510 | |
7918f24d NC |
13511 | PERL_ARGS_ASSERT_YYERROR; |
13512 | ||
3280af22 | 13513 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 13514 | where = "at EOF"; |
8bcfe651 TM |
13515 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
13516 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
13517 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13518 | /* |
13519 | Only for NetWare: | |
13520 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13521 | when the script has error such as not having the closing quotes like: | |
13522 | if ($var eq "value) | |
13523 | Checking of white spaces is anyway done in NetWare code. | |
13524 | */ | |
13525 | #ifndef NETWARE | |
3280af22 NIS |
13526 | while (isSPACE(*PL_oldoldbufptr)) |
13527 | PL_oldoldbufptr++; | |
f355267c | 13528 | #endif |
3280af22 NIS |
13529 | context = PL_oldoldbufptr; |
13530 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 13531 | } |
8bcfe651 TM |
13532 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
13533 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13534 | /* |
13535 | Only for NetWare: | |
13536 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13537 | when the script has error such as not having the closing quotes like: | |
13538 | if ($var eq "value) | |
13539 | Checking of white spaces is anyway done in NetWare code. | |
13540 | */ | |
13541 | #ifndef NETWARE | |
3280af22 NIS |
13542 | while (isSPACE(*PL_oldbufptr)) |
13543 | PL_oldbufptr++; | |
f355267c | 13544 | #endif |
3280af22 NIS |
13545 | context = PL_oldbufptr; |
13546 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
13547 | } |
13548 | else if (yychar > 255) | |
68dc0745 | 13549 | where = "next token ???"; |
12fbd33b | 13550 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
13551 | if (PL_lex_state == LEX_NORMAL || |
13552 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 13553 | where = "at end of line"; |
3280af22 | 13554 | else if (PL_lex_inpat) |
68dc0745 | 13555 | where = "within pattern"; |
463ee0b2 | 13556 | else |
68dc0745 | 13557 | where = "within string"; |
463ee0b2 | 13558 | } |
46fc3d4c | 13559 | else { |
84bafc02 | 13560 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 13561 | if (yychar < 32) |
cea2e8a9 | 13562 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 13563 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 13564 | const char string = yychar; |
5e7aa789 NC |
13565 | sv_catpvn(where_sv, &string, 1); |
13566 | } | |
463ee0b2 | 13567 | else |
cea2e8a9 | 13568 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 13569 | where = SvPVX_const(where_sv); |
463ee0b2 | 13570 | } |
46fc3d4c | 13571 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 13572 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 13573 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 13574 | if (context) |
cea2e8a9 | 13575 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 13576 | else |
cea2e8a9 | 13577 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 13578 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 13579 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 13580 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 13581 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 13582 | PL_multi_end = 0; |
a0d0e21e | 13583 | } |
500960a6 | 13584 | if (PL_in_eval & EVAL_WARNONLY) { |
9b387841 | 13585 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); |
500960a6 | 13586 | } |
463ee0b2 | 13587 | else |
5a844595 | 13588 | qerror(msg); |
c7d6bfb2 GS |
13589 | if (PL_error_count >= 10) { |
13590 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 13591 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 13592 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
13593 | else |
13594 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 13595 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 13596 | } |
3280af22 | 13597 | PL_in_my = 0; |
5c284bb0 | 13598 | PL_in_my_stash = NULL; |
463ee0b2 LW |
13599 | return 0; |
13600 | } | |
084592ab CN |
13601 | #ifdef __SC__ |
13602 | #pragma segment Main | |
13603 | #endif | |
4e35701f | 13604 | |
b250498f | 13605 | STATIC char* |
3ae08724 | 13606 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 13607 | { |
97aff369 | 13608 | dVAR; |
f54cb97a | 13609 | const STRLEN slen = SvCUR(PL_linestr); |
7918f24d NC |
13610 | |
13611 | PERL_ARGS_ASSERT_SWALLOW_BOM; | |
13612 | ||
7aa207d6 | 13613 | switch (s[0]) { |
4e553d73 NIS |
13614 | case 0xFF: |
13615 | if (s[1] == 0xFE) { | |
ee6ba15d | 13616 | /* UTF-16 little-endian? (or UTF-32LE?) */ |
3ae08724 | 13617 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
ee6ba15d | 13618 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32LE"); |
01ec43d0 | 13619 | #ifndef PERL_NO_UTF16_FILTER |
ee6ba15d | 13620 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (BOM)\n"); |
3ae08724 | 13621 | s += 2; |
dea0fc0b | 13622 | if (PL_bufend > (char*)s) { |
81a923f4 | 13623 | s = add_utf16_textfilter(s, TRUE); |
dea0fc0b | 13624 | } |
b250498f | 13625 | #else |
ee6ba15d | 13626 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); |
b250498f | 13627 | #endif |
01ec43d0 GS |
13628 | } |
13629 | break; | |
78ae23f5 | 13630 | case 0xFE: |
7aa207d6 | 13631 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 13632 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13633 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b JH |
13634 | s += 2; |
13635 | if (PL_bufend > (char *)s) { | |
81a923f4 | 13636 | s = add_utf16_textfilter(s, FALSE); |
dea0fc0b | 13637 | } |
b250498f | 13638 | #else |
ee6ba15d | 13639 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); |
b250498f | 13640 | #endif |
01ec43d0 GS |
13641 | } |
13642 | break; | |
3ae08724 GS |
13643 | case 0xEF: |
13644 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 13645 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
13646 | s += 3; /* UTF-8 */ |
13647 | } | |
13648 | break; | |
13649 | case 0: | |
7aa207d6 JH |
13650 | if (slen > 3) { |
13651 | if (s[1] == 0) { | |
13652 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
13653 | /* UTF-32 big-endian */ | |
ee6ba15d | 13654 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32BE"); |
7aa207d6 JH |
13655 | } |
13656 | } | |
13657 | else if (s[2] == 0 && s[3] != 0) { | |
13658 | /* Leading bytes | |
13659 | * 00 xx 00 xx | |
13660 | * are a good indicator of UTF-16BE. */ | |
ee6ba15d | 13661 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13662 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); |
ee6ba15d EB |
13663 | s = add_utf16_textfilter(s, FALSE); |
13664 | #else | |
13665 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); | |
13666 | #endif | |
7aa207d6 | 13667 | } |
01ec43d0 | 13668 | } |
e294cc5d JH |
13669 | #ifdef EBCDIC |
13670 | case 0xDD: | |
13671 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
13672 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
13673 | s += 4; /* UTF-8 */ | |
13674 | } | |
13675 | break; | |
13676 | #endif | |
13677 | ||
7aa207d6 JH |
13678 | default: |
13679 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
13680 | /* Leading bytes | |
13681 | * xx 00 xx 00 | |
13682 | * are a good indicator of UTF-16LE. */ | |
ee6ba15d | 13683 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13684 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); |
81a923f4 | 13685 | s = add_utf16_textfilter(s, TRUE); |
ee6ba15d EB |
13686 | #else |
13687 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); | |
13688 | #endif | |
7aa207d6 | 13689 | } |
01ec43d0 | 13690 | } |
b8f84bb2 | 13691 | return (char*)s; |
b250498f | 13692 | } |
4755096e | 13693 | |
6e3aabd6 GS |
13694 | |
13695 | #ifndef PERL_NO_UTF16_FILTER | |
13696 | static I32 | |
a28af015 | 13697 | S_utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 13698 | { |
97aff369 | 13699 | dVAR; |
f3040f2c | 13700 | SV *const filter = FILTER_DATA(idx); |
2a773401 NC |
13701 | /* We re-use this each time round, throwing the contents away before we |
13702 | return. */ | |
2a773401 | 13703 | SV *const utf16_buffer = MUTABLE_SV(IoTOP_GV(filter)); |
f3040f2c | 13704 | SV *const utf8_buffer = filter; |
c28d6105 | 13705 | IV status = IoPAGE(filter); |
f2338a2e | 13706 | const bool reverse = cBOOL(IoLINES(filter)); |
d2d1d4de | 13707 | I32 retval; |
c8b0cbae | 13708 | |
c85ae797 NC |
13709 | PERL_ARGS_ASSERT_UTF16_TEXTFILTER; |
13710 | ||
c8b0cbae NC |
13711 | /* As we're automatically added, at the lowest level, and hence only called |
13712 | from this file, we can be sure that we're not called in block mode. Hence | |
13713 | don't bother writing code to deal with block mode. */ | |
13714 | if (maxlen) { | |
13715 | Perl_croak(aTHX_ "panic: utf16_textfilter called in block mode (for %d characters)", maxlen); | |
13716 | } | |
c28d6105 NC |
13717 | if (status < 0) { |
13718 | Perl_croak(aTHX_ "panic: utf16_textfilter called after error (status=%"IVdf")", status); | |
13719 | } | |
1de9afcd | 13720 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
c28d6105 | 13721 | "utf16_textfilter(%p,%ce): idx=%d maxlen=%d status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", |
a28af015 | 13722 | FPTR2DPTR(void *, S_utf16_textfilter), |
c28d6105 NC |
13723 | reverse ? 'l' : 'b', idx, maxlen, status, |
13724 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13725 | ||
13726 | while (1) { | |
13727 | STRLEN chars; | |
13728 | STRLEN have; | |
dea0fc0b | 13729 | I32 newlen; |
2a773401 | 13730 | U8 *end; |
c28d6105 NC |
13731 | /* First, look in our buffer of existing UTF-8 data: */ |
13732 | char *nl = (char *)memchr(SvPVX(utf8_buffer), '\n', SvCUR(utf8_buffer)); | |
13733 | ||
13734 | if (nl) { | |
13735 | ++nl; | |
13736 | } else if (status == 0) { | |
13737 | /* EOF */ | |
13738 | IoPAGE(filter) = 0; | |
13739 | nl = SvEND(utf8_buffer); | |
13740 | } | |
13741 | if (nl) { | |
d2d1d4de NC |
13742 | STRLEN got = nl - SvPVX(utf8_buffer); |
13743 | /* Did we have anything to append? */ | |
13744 | retval = got != 0; | |
13745 | sv_catpvn(sv, SvPVX(utf8_buffer), got); | |
c28d6105 NC |
13746 | /* Everything else in this code works just fine if SVp_POK isn't |
13747 | set. This, however, needs it, and we need it to work, else | |
13748 | we loop infinitely because the buffer is never consumed. */ | |
13749 | sv_chop(utf8_buffer, nl); | |
13750 | break; | |
13751 | } | |
ba77e4cc | 13752 | |
c28d6105 NC |
13753 | /* OK, not a complete line there, so need to read some more UTF-16. |
13754 | Read an extra octect if the buffer currently has an odd number. */ | |
ba77e4cc NC |
13755 | while (1) { |
13756 | if (status <= 0) | |
13757 | break; | |
13758 | if (SvCUR(utf16_buffer) >= 2) { | |
13759 | /* Location of the high octet of the last complete code point. | |
13760 | Gosh, UTF-16 is a pain. All the benefits of variable length, | |
13761 | *coupled* with all the benefits of partial reads and | |
13762 | endianness. */ | |
13763 | const U8 *const last_hi = (U8*)SvPVX(utf16_buffer) | |
13764 | + ((SvCUR(utf16_buffer) & ~1) - (reverse ? 1 : 2)); | |
13765 | ||
13766 | if (*last_hi < 0xd8 || *last_hi > 0xdb) { | |
13767 | break; | |
13768 | } | |
13769 | ||
13770 | /* We have the first half of a surrogate. Read more. */ | |
13771 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter partial surrogate detected at %p\n", last_hi)); | |
13772 | } | |
c28d6105 | 13773 | |
c28d6105 NC |
13774 | status = FILTER_READ(idx + 1, utf16_buffer, |
13775 | 160 + (SvCUR(utf16_buffer) & 1)); | |
13776 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter status=%"IVdf" SvCUR(sv)=%"UVuf"\n", status, (UV)SvCUR(utf16_buffer))); | |
ba77e4cc | 13777 | DEBUG_P({ sv_dump(utf16_buffer); sv_dump(utf8_buffer);}); |
c28d6105 NC |
13778 | if (status < 0) { |
13779 | /* Error */ | |
13780 | IoPAGE(filter) = status; | |
13781 | return status; | |
13782 | } | |
13783 | } | |
13784 | ||
13785 | chars = SvCUR(utf16_buffer) >> 1; | |
13786 | have = SvCUR(utf8_buffer); | |
13787 | SvGROW(utf8_buffer, have + chars * 3 + 1); | |
2a773401 | 13788 | |
aa6dbd60 | 13789 | if (reverse) { |
c28d6105 NC |
13790 | end = utf16_to_utf8_reversed((U8*)SvPVX(utf16_buffer), |
13791 | (U8*)SvPVX_const(utf8_buffer) + have, | |
13792 | chars * 2, &newlen); | |
aa6dbd60 | 13793 | } else { |
2a773401 | 13794 | end = utf16_to_utf8((U8*)SvPVX(utf16_buffer), |
c28d6105 NC |
13795 | (U8*)SvPVX_const(utf8_buffer) + have, |
13796 | chars * 2, &newlen); | |
2a773401 | 13797 | } |
c28d6105 | 13798 | SvCUR_set(utf8_buffer, have + newlen); |
2a773401 | 13799 | *end = '\0'; |
c28d6105 | 13800 | |
e07286ed NC |
13801 | /* No need to keep this SV "well-formed" with a '\0' after the end, as |
13802 | it's private to us, and utf16_to_utf8{,reversed} take a | |
13803 | (pointer,length) pair, rather than a NUL-terminated string. */ | |
13804 | if(SvCUR(utf16_buffer) & 1) { | |
13805 | *SvPVX(utf16_buffer) = SvEND(utf16_buffer)[-1]; | |
13806 | SvCUR_set(utf16_buffer, 1); | |
13807 | } else { | |
13808 | SvCUR_set(utf16_buffer, 0); | |
13809 | } | |
2a773401 | 13810 | } |
c28d6105 NC |
13811 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
13812 | "utf16_textfilter: returns, status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", | |
13813 | status, | |
13814 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13815 | DEBUG_P({ sv_dump(utf8_buffer); sv_dump(sv);}); | |
d2d1d4de | 13816 | return retval; |
6e3aabd6 | 13817 | } |
81a923f4 NC |
13818 | |
13819 | static U8 * | |
13820 | S_add_utf16_textfilter(pTHX_ U8 *const s, bool reversed) | |
13821 | { | |
2a773401 | 13822 | SV *filter = filter_add(S_utf16_textfilter, NULL); |
81a923f4 | 13823 | |
c85ae797 NC |
13824 | PERL_ARGS_ASSERT_ADD_UTF16_TEXTFILTER; |
13825 | ||
c28d6105 | 13826 | IoTOP_GV(filter) = MUTABLE_GV(newSVpvn((char *)s, PL_bufend - (char*)s)); |
f3040f2c | 13827 | sv_setpvs(filter, ""); |
2a773401 | 13828 | IoLINES(filter) = reversed; |
c28d6105 NC |
13829 | IoPAGE(filter) = 1; /* Not EOF */ |
13830 | ||
13831 | /* Sadly, we have to return a valid pointer, come what may, so we have to | |
13832 | ignore any error return from this. */ | |
13833 | SvCUR_set(PL_linestr, 0); | |
13834 | if (FILTER_READ(0, PL_linestr, 0)) { | |
13835 | SvUTF8_on(PL_linestr); | |
81a923f4 | 13836 | } else { |
c28d6105 | 13837 | SvUTF8_on(PL_linestr); |
81a923f4 | 13838 | } |
c28d6105 | 13839 | PL_bufend = SvEND(PL_linestr); |
81a923f4 NC |
13840 | return (U8*)SvPVX(PL_linestr); |
13841 | } | |
6e3aabd6 | 13842 | #endif |
9f4817db | 13843 | |
f333445c JP |
13844 | /* |
13845 | Returns a pointer to the next character after the parsed | |
13846 | vstring, as well as updating the passed in sv. | |
13847 | ||
13848 | Function must be called like | |
13849 | ||
561b68a9 | 13850 | sv = newSV(5); |
65b06e02 | 13851 | s = scan_vstring(s,e,sv); |
f333445c | 13852 | |
65b06e02 | 13853 | where s and e are the start and end of the string. |
f333445c JP |
13854 | The sv should already be large enough to store the vstring |
13855 | passed in, for performance reasons. | |
13856 | ||
13857 | */ | |
13858 | ||
13859 | char * | |
15f169a1 | 13860 | Perl_scan_vstring(pTHX_ const char *s, const char *const e, SV *sv) |
f333445c | 13861 | { |
97aff369 | 13862 | dVAR; |
bfed75c6 AL |
13863 | const char *pos = s; |
13864 | const char *start = s; | |
7918f24d NC |
13865 | |
13866 | PERL_ARGS_ASSERT_SCAN_VSTRING; | |
13867 | ||
f333445c | 13868 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 13869 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 13870 | pos++; |
f333445c JP |
13871 | if ( *pos != '.') { |
13872 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 13873 | const char *next = pos; |
65b06e02 | 13874 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 13875 | ++next; |
65b06e02 | 13876 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
13877 | /* return string not v-string */ |
13878 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 13879 | return (char *)pos; |
f333445c JP |
13880 | } |
13881 | } | |
13882 | ||
13883 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 13884 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 13885 | |
d4c19fe8 AL |
13886 | if (*s == 'v') |
13887 | s++; /* get past 'v' */ | |
f333445c | 13888 | |
76f68e9b | 13889 | sv_setpvs(sv, ""); |
f333445c JP |
13890 | |
13891 | for (;;) { | |
d4c19fe8 | 13892 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
13893 | U8 *tmpend; |
13894 | UV rev = 0; | |
d4c19fe8 AL |
13895 | const char *end = pos; |
13896 | UV mult = 1; | |
13897 | while (--end >= s) { | |
13898 | if (*end != '_') { | |
13899 | const UV orev = rev; | |
f333445c JP |
13900 | rev += (*end - '0') * mult; |
13901 | mult *= 10; | |
9b387841 NC |
13902 | if (orev > rev) |
13903 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
13904 | "Integer overflow in decimal number"); | |
f333445c JP |
13905 | } |
13906 | } | |
13907 | #ifdef EBCDIC | |
13908 | if (rev > 0x7FFFFFFF) | |
13909 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
13910 | #endif | |
13911 | /* Append native character for the rev point */ | |
13912 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
13913 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
13914 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
13915 | SvUTF8_on(sv); | |
65b06e02 | 13916 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
13917 | s = ++pos; |
13918 | else { | |
13919 | s = pos; | |
13920 | break; | |
13921 | } | |
65b06e02 | 13922 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
13923 | pos++; |
13924 | } | |
13925 | SvPOK_on(sv); | |
13926 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
13927 | SvRMAGICAL_on(sv); | |
13928 | } | |
73d840c0 | 13929 | return (char *)s; |
f333445c JP |
13930 | } |
13931 | ||
88e1f1a2 JV |
13932 | int |
13933 | Perl_keyword_plugin_standard(pTHX_ | |
13934 | char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) | |
13935 | { | |
13936 | PERL_ARGS_ASSERT_KEYWORD_PLUGIN_STANDARD; | |
13937 | PERL_UNUSED_CONTEXT; | |
13938 | PERL_UNUSED_ARG(keyword_ptr); | |
13939 | PERL_UNUSED_ARG(keyword_len); | |
13940 | PERL_UNUSED_ARG(op_ptr); | |
13941 | return KEYWORD_PLUGIN_DECLINE; | |
13942 | } | |
13943 | ||
1da4ca5f | 13944 | /* |
28ac2b49 Z |
13945 | =for apidoc Amx|OP *|parse_fullstmt|U32 flags |
13946 | ||
13947 | Parse a single complete Perl statement. This may be a normal imperative | |
13948 | statement, including optional label, or a declaration that has | |
13949 | compile-time effect. It is up to the caller to ensure that the dynamic | |
13950 | parser state (L</PL_parser> et al) is correctly set to reflect the source | |
13951 | of the code to be parsed and the lexical context for the statement. | |
13952 | ||
13953 | The op tree representing the statement is returned. This may be a | |
13954 | null pointer if the statement is null, for example if it was actually | |
13955 | a subroutine definition (which has compile-time side effects). If not | |
13956 | null, it will be the result of a L</newSTATEOP> call, normally including | |
13957 | a C<nextstate> or equivalent op. | |
13958 | ||
13959 | If an error occurs in parsing or compilation, in most cases a valid op | |
13960 | tree (most likely null) is returned anyway. The error is reflected in | |
13961 | the parser state, normally resulting in a single exception at the top | |
13962 | level of parsing which covers all the compilation errors that occurred. | |
13963 | Some compilation errors, however, will throw an exception immediately. | |
13964 | ||
13965 | The I<flags> parameter is reserved for future use, and must always | |
13966 | be zero. | |
13967 | ||
13968 | =cut | |
13969 | */ | |
13970 | ||
13971 | OP * | |
13972 | Perl_parse_fullstmt(pTHX_ U32 flags) | |
13973 | { | |
13974 | OP *fullstmtop; | |
13975 | if (flags) | |
13976 | Perl_croak(aTHX_ "Parsing code internal error (%s)", "parse_fullstmt"); | |
13977 | ENTER; | |
13978 | SAVEVPTR(PL_eval_root); | |
13979 | PL_eval_root = NULL; | |
13980 | if(yyparse(GRAMFULLSTMT) && !PL_parser->error_count) | |
13981 | qerror(Perl_mess(aTHX_ "Parse error")); | |
13982 | fullstmtop = PL_eval_root; | |
13983 | LEAVE; | |
13984 | return fullstmtop; | |
13985 | } | |
13986 | ||
ea25a9b2 | 13987 | void |
f7e3d326 | 13988 | Perl_munge_qwlist_to_paren_list(pTHX_ OP *qwlist) |
ea25a9b2 | 13989 | { |
f7e3d326 | 13990 | PERL_ARGS_ASSERT_MUNGE_QWLIST_TO_PAREN_LIST; |
ea25a9b2 Z |
13991 | deprecate("qw(...) as parentheses"); |
13992 | force_next(')'); | |
13993 | if (qwlist->op_type == OP_STUB) { | |
13994 | op_free(qwlist); | |
13995 | } | |
13996 | else { | |
3d8e05a0 | 13997 | start_force(PL_curforce); |
ea25a9b2 Z |
13998 | NEXTVAL_NEXTTOKE.opval = qwlist; |
13999 | force_next(THING); | |
14000 | } | |
14001 | force_next('('); | |
14002 | } | |
14003 | ||
28ac2b49 | 14004 | /* |
1da4ca5f NC |
14005 | * Local variables: |
14006 | * c-indentation-style: bsd | |
14007 | * c-basic-offset: 4 | |
14008 | * indent-tabs-mode: t | |
14009 | * End: | |
14010 | * | |
37442d52 RGS |
14011 | * ex: set ts=8 sts=4 sw=4 noet: |
14012 | */ |