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" |
378cc40b | 42 | |
eb0d8d16 NC |
43 | #define new_constant(a,b,c,d,e,f,g) \ |
44 | S_new_constant(aTHX_ a,b,STR_WITH_LEN(c),d,e,f, g) | |
45 | ||
6154021b | 46 | #define pl_yylval (PL_parser->yylval) |
d3b6f988 | 47 | |
199e78b7 DM |
48 | /* XXX temporary backwards compatibility */ |
49 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
50 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
51 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
52 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
53 | #define PL_lex_defer (PL_parser->lex_defer) | |
54 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
55 | #define PL_lex_expect (PL_parser->lex_expect) | |
56 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
57 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
58 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
59 | #define PL_lex_op (PL_parser->lex_op) | |
60 | #define PL_lex_repl (PL_parser->lex_repl) | |
61 | #define PL_lex_starts (PL_parser->lex_starts) | |
62 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
63 | #define PL_multi_start (PL_parser->multi_start) | |
64 | #define PL_multi_open (PL_parser->multi_open) | |
65 | #define PL_multi_close (PL_parser->multi_close) | |
66 | #define PL_pending_ident (PL_parser->pending_ident) | |
67 | #define PL_preambled (PL_parser->preambled) | |
68 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 69 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
70 | #define PL_expect (PL_parser->expect) |
71 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
72 | #define PL_bufptr (PL_parser->bufptr) |
73 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
74 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
75 | #define PL_linestart (PL_parser->linestart) | |
76 | #define PL_bufend (PL_parser->bufend) | |
77 | #define PL_last_uni (PL_parser->last_uni) | |
78 | #define PL_last_lop (PL_parser->last_lop) | |
79 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 80 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 81 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 82 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
83 | #define PL_in_my (PL_parser->in_my) |
84 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 85 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 86 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 87 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
88 | |
89 | #ifdef PERL_MAD | |
90 | # define PL_endwhite (PL_parser->endwhite) | |
91 | # define PL_faketokens (PL_parser->faketokens) | |
92 | # define PL_lasttoke (PL_parser->lasttoke) | |
93 | # define PL_nextwhite (PL_parser->nextwhite) | |
94 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
95 | # define PL_skipwhite (PL_parser->skipwhite) | |
96 | # define PL_thisclose (PL_parser->thisclose) | |
97 | # define PL_thismad (PL_parser->thismad) | |
98 | # define PL_thisopen (PL_parser->thisopen) | |
99 | # define PL_thisstuff (PL_parser->thisstuff) | |
100 | # define PL_thistoken (PL_parser->thistoken) | |
101 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
102 | # define PL_thiswhite (PL_parser->thiswhite) |
103 | # define PL_nexttoke (PL_parser->nexttoke) | |
104 | # define PL_curforce (PL_parser->curforce) | |
105 | #else | |
106 | # define PL_nexttoke (PL_parser->nexttoke) | |
107 | # define PL_nexttype (PL_parser->nexttype) | |
108 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
109 | #endif |
110 | ||
16173588 NC |
111 | /* This can't be done with embed.fnc, because struct yy_parser contains a |
112 | member named pending_ident, which clashes with the generated #define */ | |
3cbf51f5 DM |
113 | static int |
114 | S_pending_ident(pTHX); | |
199e78b7 | 115 | |
0bd48802 | 116 | static const char ident_too_long[] = "Identifier too long"; |
8903cb82 | 117 | |
29595ff2 | 118 | #ifdef PERL_MAD |
29595ff2 | 119 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 120 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 121 | #else |
5db06880 | 122 | # define CURMAD(slot,sv) |
9ded7720 | 123 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
124 | #endif |
125 | ||
9059aa12 LW |
126 | #define XFAKEBRACK 128 |
127 | #define XENUMMASK 127 | |
128 | ||
39e02b42 JH |
129 | #ifdef USE_UTF8_SCRIPTS |
130 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 131 | #else |
746b446a | 132 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 133 | #endif |
a0ed51b3 | 134 | |
b1fc3636 CJ |
135 | /* The maximum number of characters preceding the unrecognized one to display */ |
136 | #define UNRECOGNIZED_PRECEDE_COUNT 10 | |
137 | ||
61f0cdd9 | 138 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
139 | * 1999-02-27 mjd-perl-patch@plover.com */ |
140 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
141 | ||
bf4acbe4 | 142 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') |
bf4acbe4 | 143 | |
ffb4593c NT |
144 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
145 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
146 | * can get by with a single comparison (if the compiler is smart enough). |
147 | */ | |
148 | ||
fb73857a | 149 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
150 | ||
b6007c36 DM |
151 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
152 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
153 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
154 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
155 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
156 | ||
157 | /* at end of code, eg "$x" followed by: */ | |
158 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
159 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
160 | ||
161 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
162 | string or after \E, $foo, etc */ | |
163 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
164 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
165 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
166 | ||
79072805 | 167 | |
bbf60fe6 | 168 | #ifdef DEBUGGING |
27da23d5 | 169 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
170 | "KNOWNEXT", |
171 | "FORMLINE", | |
172 | "INTERPCONST", | |
173 | "INTERPCONCAT", | |
174 | "INTERPENDMAYBE", | |
175 | "INTERPEND", | |
176 | "INTERPSTART", | |
177 | "INTERPPUSH", | |
178 | "INTERPCASEMOD", | |
179 | "INTERPNORMAL", | |
180 | "NORMAL" | |
181 | }; | |
182 | #endif | |
183 | ||
79072805 LW |
184 | #ifdef ff_next |
185 | #undef ff_next | |
d48672a2 LW |
186 | #endif |
187 | ||
79072805 | 188 | #include "keywords.h" |
fe14fcc3 | 189 | |
ffb4593c NT |
190 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
191 | ||
ae986130 LW |
192 | #ifdef CLINE |
193 | #undef CLINE | |
194 | #endif | |
57843af0 | 195 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 196 | |
5db06880 | 197 | #ifdef PERL_MAD |
29595ff2 NC |
198 | # define SKIPSPACE0(s) skipspace0(s) |
199 | # define SKIPSPACE1(s) skipspace1(s) | |
200 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
201 | # define PEEKSPACE(s) skipspace2(s,0) | |
202 | #else | |
203 | # define SKIPSPACE0(s) skipspace(s) | |
204 | # define SKIPSPACE1(s) skipspace(s) | |
205 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
206 | # define PEEKSPACE(s) skipspace(s) | |
207 | #endif | |
208 | ||
ffb4593c NT |
209 | /* |
210 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 211 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
212 | * |
213 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
214 | * OPERATOR : generic operator | |
215 | * AOPERATOR : assignment operator | |
216 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
217 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
218 | * PREREF : *EXPR where EXPR is not a simple identifier | |
219 | * TERM : expression term | |
220 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
221 | * FTST : file test operator | |
222 | * FUN0 : zero-argument function | |
2d2e263d | 223 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
224 | * BOop : bitwise or or xor |
225 | * BAop : bitwise and | |
226 | * SHop : shift operator | |
227 | * PWop : power operator | |
9cbb5ea2 | 228 | * PMop : pattern-matching operator |
ffb4593c NT |
229 | * Aop : addition-level operator |
230 | * Mop : multiplication-level operator | |
231 | * Eop : equality-testing operator | |
e5edeb50 | 232 | * Rop : relational operator <= != gt |
ffb4593c NT |
233 | * |
234 | * Also see LOP and lop() below. | |
235 | */ | |
236 | ||
998054bd | 237 | #ifdef DEBUGGING /* Serve -DT. */ |
704d4215 | 238 | # define REPORT(retval) tokereport((I32)retval, &pl_yylval) |
998054bd | 239 | #else |
bbf60fe6 | 240 | # define REPORT(retval) (retval) |
998054bd SC |
241 | #endif |
242 | ||
bbf60fe6 DM |
243 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
244 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
245 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
246 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
247 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
248 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
249 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
250 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
251 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
252 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
253 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
254 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
255 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
256 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
257 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
258 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
259 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
260 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
261 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
262 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 263 | |
a687059c LW |
264 | /* This bit of chicanery makes a unary function followed by |
265 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
266 | * The UNIDOR macro is for unary functions that can be followed by the // |
267 | * operator (such as C<shift // 0>). | |
a687059c | 268 | */ |
376fcdbf | 269 | #define UNI2(f,x) { \ |
6154021b | 270 | pl_yylval.ival = f; \ |
376fcdbf AL |
271 | PL_expect = x; \ |
272 | PL_bufptr = s; \ | |
273 | PL_last_uni = PL_oldbufptr; \ | |
274 | PL_last_lop_op = f; \ | |
275 | if (*s == '(') \ | |
276 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 277 | s = PEEKSPACE(s); \ |
376fcdbf AL |
278 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
279 | } | |
6f33ba73 RGS |
280 | #define UNI(f) UNI2(f,XTERM) |
281 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 282 | |
376fcdbf | 283 | #define UNIBRACK(f) { \ |
6154021b | 284 | pl_yylval.ival = f; \ |
376fcdbf AL |
285 | PL_bufptr = s; \ |
286 | PL_last_uni = PL_oldbufptr; \ | |
287 | if (*s == '(') \ | |
288 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 289 | s = PEEKSPACE(s); \ |
376fcdbf AL |
290 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
291 | } | |
79072805 | 292 | |
9f68db38 | 293 | /* grandfather return to old style */ |
6154021b | 294 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 295 | |
8fa7f367 JH |
296 | #ifdef DEBUGGING |
297 | ||
6154021b | 298 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
299 | enum token_type { |
300 | TOKENTYPE_NONE, | |
301 | TOKENTYPE_IVAL, | |
6154021b | 302 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
303 | TOKENTYPE_PVAL, |
304 | TOKENTYPE_OPVAL, | |
305 | TOKENTYPE_GVVAL | |
306 | }; | |
307 | ||
6d4a66ac NC |
308 | static struct debug_tokens { |
309 | const int token; | |
310 | enum token_type type; | |
311 | const char *name; | |
312 | } const debug_tokens[] = | |
9041c2e3 | 313 | { |
bbf60fe6 DM |
314 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
315 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
316 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
317 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
318 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
319 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
320 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
321 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
322 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
323 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 324 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
325 | { DO, TOKENTYPE_NONE, "DO" }, |
326 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
327 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
328 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
329 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
330 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
331 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
332 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
333 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
334 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
335 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
336 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
337 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
338 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
339 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 340 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
341 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
342 | { IF, TOKENTYPE_IVAL, "IF" }, | |
343 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
344 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
345 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
346 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
347 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
348 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
349 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
350 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
351 | { MY, TOKENTYPE_IVAL, "MY" }, | |
352 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
353 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
354 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
355 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
356 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
357 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
88e1f1a2 JV |
358 | { PLUGEXPR, TOKENTYPE_OPVAL, "PLUGEXPR" }, |
359 | { PLUGSTMT, TOKENTYPE_OPVAL, "PLUGSTMT" }, | |
bbf60fe6 DM |
360 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, |
361 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
362 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
363 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
364 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
365 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
366 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
367 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
368 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
369 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
370 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
371 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
372 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
373 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
374 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
375 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
376 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
377 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 378 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
379 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
380 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
be25f609 | 381 | { YADAYADA, TOKENTYPE_IVAL, "YADAYADA" }, |
c35e046a | 382 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
383 | }; |
384 | ||
6154021b | 385 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 386 | |
bbf60fe6 | 387 | STATIC int |
704d4215 | 388 | S_tokereport(pTHX_ I32 rv, const YYSTYPE* lvalp) |
bbf60fe6 | 389 | { |
97aff369 | 390 | dVAR; |
7918f24d NC |
391 | |
392 | PERL_ARGS_ASSERT_TOKEREPORT; | |
393 | ||
bbf60fe6 | 394 | if (DEBUG_T_TEST) { |
bd61b366 | 395 | const char *name = NULL; |
bbf60fe6 | 396 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 397 | const struct debug_tokens *p; |
396482e1 | 398 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 399 | |
f54cb97a | 400 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
401 | if (p->token == (int)rv) { |
402 | name = p->name; | |
403 | type = p->type; | |
404 | break; | |
405 | } | |
406 | } | |
407 | if (name) | |
54667de8 | 408 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
409 | else if ((char)rv > ' ' && (char)rv < '~') |
410 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
411 | else if (!rv) | |
396482e1 | 412 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
413 | else |
414 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
415 | switch (type) { | |
416 | case TOKENTYPE_NONE: | |
417 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
418 | break; | |
419 | case TOKENTYPE_IVAL: | |
704d4215 | 420 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)lvalp->ival); |
bbf60fe6 DM |
421 | break; |
422 | case TOKENTYPE_OPNUM: | |
423 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
704d4215 | 424 | PL_op_name[lvalp->ival]); |
bbf60fe6 DM |
425 | break; |
426 | case TOKENTYPE_PVAL: | |
704d4215 | 427 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", lvalp->pval); |
bbf60fe6 DM |
428 | break; |
429 | case TOKENTYPE_OPVAL: | |
704d4215 | 430 | if (lvalp->opval) { |
401441c0 | 431 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
704d4215 GG |
432 | PL_op_name[lvalp->opval->op_type]); |
433 | if (lvalp->opval->op_type == OP_CONST) { | |
b6007c36 | 434 | Perl_sv_catpvf(aTHX_ report, " %s", |
704d4215 | 435 | SvPEEK(cSVOPx_sv(lvalp->opval))); |
b6007c36 DM |
436 | } |
437 | ||
438 | } | |
401441c0 | 439 | else |
396482e1 | 440 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
441 | break; |
442 | } | |
b6007c36 | 443 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
444 | }; |
445 | return (int)rv; | |
998054bd SC |
446 | } |
447 | ||
b6007c36 DM |
448 | |
449 | /* print the buffer with suitable escapes */ | |
450 | ||
451 | STATIC void | |
15f169a1 | 452 | S_printbuf(pTHX_ const char *const fmt, const char *const s) |
b6007c36 | 453 | { |
396482e1 | 454 | SV* const tmp = newSVpvs(""); |
7918f24d NC |
455 | |
456 | PERL_ARGS_ASSERT_PRINTBUF; | |
457 | ||
b6007c36 DM |
458 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
459 | SvREFCNT_dec(tmp); | |
460 | } | |
461 | ||
8fa7f367 JH |
462 | #endif |
463 | ||
8290c323 NC |
464 | static int |
465 | S_deprecate_commaless_var_list(pTHX) { | |
466 | PL_expect = XTERM; | |
467 | deprecate("comma-less variable list"); | |
468 | return REPORT(','); /* grandfather non-comma-format format */ | |
469 | } | |
470 | ||
ffb4593c NT |
471 | /* |
472 | * S_ao | |
473 | * | |
c963b151 BD |
474 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
475 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
476 | */ |
477 | ||
76e3520e | 478 | STATIC int |
cea2e8a9 | 479 | S_ao(pTHX_ int toketype) |
a0d0e21e | 480 | { |
97aff369 | 481 | dVAR; |
3280af22 NIS |
482 | if (*PL_bufptr == '=') { |
483 | PL_bufptr++; | |
a0d0e21e | 484 | if (toketype == ANDAND) |
6154021b | 485 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 486 | else if (toketype == OROR) |
6154021b | 487 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 488 | else if (toketype == DORDOR) |
6154021b | 489 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
490 | toketype = ASSIGNOP; |
491 | } | |
492 | return toketype; | |
493 | } | |
494 | ||
ffb4593c NT |
495 | /* |
496 | * S_no_op | |
497 | * When Perl expects an operator and finds something else, no_op | |
498 | * prints the warning. It always prints "<something> found where | |
499 | * operator expected. It prints "Missing semicolon on previous line?" | |
500 | * if the surprise occurs at the start of the line. "do you need to | |
501 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
502 | * where the compiler doesn't know if foo is a method call or a function. | |
503 | * It prints "Missing operator before end of line" if there's nothing | |
504 | * after the missing operator, or "... before <...>" if there is something | |
505 | * after the missing operator. | |
506 | */ | |
507 | ||
76e3520e | 508 | STATIC void |
15f169a1 | 509 | S_no_op(pTHX_ const char *const what, char *s) |
463ee0b2 | 510 | { |
97aff369 | 511 | dVAR; |
9d4ba2ae AL |
512 | char * const oldbp = PL_bufptr; |
513 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 514 | |
7918f24d NC |
515 | PERL_ARGS_ASSERT_NO_OP; |
516 | ||
1189a94a GS |
517 | if (!s) |
518 | s = oldbp; | |
07c798fb | 519 | else |
1189a94a | 520 | PL_bufptr = s; |
cea2e8a9 | 521 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
522 | if (ckWARN_d(WARN_SYNTAX)) { |
523 | if (is_first) | |
524 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
525 | "\t(Missing semicolon on previous line?)\n"); | |
526 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 527 | const char *t; |
c35e046a AL |
528 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
529 | NOOP; | |
56da5a46 RGS |
530 | if (t < PL_bufptr && isSPACE(*t)) |
531 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
532 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 533 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
534 | } |
535 | else { | |
536 | assert(s >= oldbp); | |
537 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 538 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 539 | } |
07c798fb | 540 | } |
3280af22 | 541 | PL_bufptr = oldbp; |
8990e307 LW |
542 | } |
543 | ||
ffb4593c NT |
544 | /* |
545 | * S_missingterm | |
546 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 547 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
548 | * If we're in a delimited string and the delimiter is a control |
549 | * character, it's reformatted into a two-char sequence like ^C. | |
550 | * This is fatal. | |
551 | */ | |
552 | ||
76e3520e | 553 | STATIC void |
cea2e8a9 | 554 | S_missingterm(pTHX_ char *s) |
8990e307 | 555 | { |
97aff369 | 556 | dVAR; |
8990e307 LW |
557 | char tmpbuf[3]; |
558 | char q; | |
559 | if (s) { | |
9d4ba2ae | 560 | char * const nl = strrchr(s,'\n'); |
d2719217 | 561 | if (nl) |
8990e307 LW |
562 | *nl = '\0'; |
563 | } | |
463559e7 | 564 | else if (isCNTRL(PL_multi_close)) { |
8990e307 | 565 | *tmpbuf = '^'; |
585ec06d | 566 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
567 | tmpbuf[2] = '\0'; |
568 | s = tmpbuf; | |
569 | } | |
570 | else { | |
eb160463 | 571 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
572 | tmpbuf[1] = '\0'; |
573 | s = tmpbuf; | |
574 | } | |
575 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 576 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 577 | } |
79072805 | 578 | |
ef89dcc3 | 579 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 580 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 581 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b | 582 | /* The longest string we pass in. */ |
1863b879 | 583 | #define MAX_FEATURE_LEN (sizeof("unicode_strings")-1) |
4a731d7b | 584 | |
0d863452 RH |
585 | /* |
586 | * S_feature_is_enabled | |
587 | * Check whether the named feature is enabled. | |
588 | */ | |
589 | STATIC bool | |
15f169a1 | 590 | S_feature_is_enabled(pTHX_ const char *const name, STRLEN namelen) |
0d863452 | 591 | { |
97aff369 | 592 | dVAR; |
0d863452 | 593 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b | 594 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
7918f24d NC |
595 | |
596 | PERL_ARGS_ASSERT_FEATURE_IS_ENABLED; | |
597 | ||
4a731d7b NC |
598 | assert(namelen <= MAX_FEATURE_LEN); |
599 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 600 | |
7b9ef140 | 601 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
602 | } |
603 | ||
ffb4593c | 604 | /* |
9cbb5ea2 GS |
605 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
606 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
607 | */ |
608 | ||
c39cd008 GS |
609 | #ifdef PERL_CR_FILTER |
610 | static void | |
611 | strip_return(SV *sv) | |
612 | { | |
95a20fc0 | 613 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 614 | register const char * const e = s + SvCUR(sv); |
7918f24d NC |
615 | |
616 | PERL_ARGS_ASSERT_STRIP_RETURN; | |
617 | ||
c39cd008 GS |
618 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
619 | while (s < e) { | |
620 | if (*s++ == '\r' && *s == '\n') { | |
621 | /* hit a CR-LF, need to copy the rest */ | |
622 | register char *d = s - 1; | |
623 | *d++ = *s++; | |
624 | while (s < e) { | |
625 | if (*s == '\r' && s[1] == '\n') | |
626 | s++; | |
627 | *d++ = *s++; | |
628 | } | |
629 | SvCUR(sv) -= s - d; | |
630 | return; | |
631 | } | |
632 | } | |
633 | } | |
a868473f | 634 | |
76e3520e | 635 | STATIC I32 |
c39cd008 | 636 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 637 | { |
f54cb97a | 638 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
639 | if (count > 0 && !maxlen) |
640 | strip_return(sv); | |
641 | return count; | |
a868473f NIS |
642 | } |
643 | #endif | |
644 | ||
199e78b7 DM |
645 | |
646 | ||
ffb4593c NT |
647 | /* |
648 | * Perl_lex_start | |
5486870f | 649 | * |
e3abe207 | 650 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
651 | * |
652 | * rsfp is the opened file handle to read from (if any), | |
653 | * | |
654 | * line holds any initial content already read from the file (or in | |
655 | * the case of no file, such as an eval, the whole contents); | |
656 | * | |
657 | * new_filter indicates that this is a new file and it shouldn't inherit | |
658 | * the filters from the current parser (ie require). | |
ffb4593c NT |
659 | */ |
660 | ||
a0d0e21e | 661 | void |
5486870f | 662 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 663 | { |
97aff369 | 664 | dVAR; |
6ef55633 | 665 | const char *s = NULL; |
8990e307 | 666 | STRLEN len; |
5486870f | 667 | yy_parser *parser, *oparser; |
acdf0a21 DM |
668 | |
669 | /* create and initialise a parser */ | |
670 | ||
199e78b7 | 671 | Newxz(parser, 1, yy_parser); |
5486870f | 672 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
673 | PL_parser = parser; |
674 | ||
28ac2b49 Z |
675 | parser->stack = NULL; |
676 | parser->ps = NULL; | |
677 | parser->stack_size = 0; | |
acdf0a21 | 678 | |
e3abe207 DM |
679 | /* on scope exit, free this parser and restore any outer one */ |
680 | SAVEPARSER(parser); | |
7c4baf47 | 681 | parser->saved_curcop = PL_curcop; |
e3abe207 | 682 | |
acdf0a21 | 683 | /* initialise lexer state */ |
8990e307 | 684 | |
fb205e7a DM |
685 | #ifdef PERL_MAD |
686 | parser->curforce = -1; | |
687 | #else | |
688 | parser->nexttoke = 0; | |
689 | #endif | |
ca4cfd28 | 690 | parser->error_count = oparser ? oparser->error_count : 0; |
c2598295 | 691 | parser->copline = NOLINE; |
5afb0a62 | 692 | parser->lex_state = LEX_NORMAL; |
c2598295 | 693 | parser->expect = XSTATE; |
2f9285f8 | 694 | parser->rsfp = rsfp; |
56b27c9a | 695 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
502c6561 | 696 | : MUTABLE_AV(SvREFCNT_inc(oparser->rsfp_filters)); |
2f9285f8 | 697 | |
199e78b7 DM |
698 | Newx(parser->lex_brackstack, 120, char); |
699 | Newx(parser->lex_casestack, 12, char); | |
700 | *parser->lex_casestack = '\0'; | |
02b34bbe | 701 | |
10efb74f NC |
702 | if (line) { |
703 | s = SvPV_const(line, len); | |
704 | } else { | |
705 | len = 0; | |
706 | } | |
bdc0bf6f | 707 | |
10efb74f | 708 | if (!len) { |
bdc0bf6f | 709 | parser->linestr = newSVpvs("\n;"); |
3e5c0189 | 710 | } else if (SvREADONLY(line) || s[len-1] != ';' || !SvPOK(line)) { |
719a9bb0 NC |
711 | /* avoid tie/overload weirdness */ |
712 | parser->linestr = newSVpvn_flags(s, len, SvUTF8(line)); | |
10efb74f | 713 | if (s[len-1] != ';') |
bdc0bf6f | 714 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
715 | } else { |
716 | SvTEMP_off(line); | |
717 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 718 | parser->linestr = line; |
8990e307 | 719 | } |
f06b5848 DM |
720 | parser->oldoldbufptr = |
721 | parser->oldbufptr = | |
722 | parser->bufptr = | |
723 | parser->linestart = SvPVX(parser->linestr); | |
724 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
725 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 726 | } |
a687059c | 727 | |
e3abe207 DM |
728 | |
729 | /* delete a parser object */ | |
730 | ||
731 | void | |
732 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
733 | { | |
7918f24d NC |
734 | PERL_ARGS_ASSERT_PARSER_FREE; |
735 | ||
7c4baf47 | 736 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
737 | SvREFCNT_dec(parser->linestr); |
738 | ||
2f9285f8 DM |
739 | if (parser->rsfp == PerlIO_stdin()) |
740 | PerlIO_clearerr(parser->rsfp); | |
799361c3 SH |
741 | else if (parser->rsfp && (!parser->old_parser || |
742 | (parser->old_parser && parser->rsfp != parser->old_parser->rsfp))) | |
2f9285f8 | 743 | PerlIO_close(parser->rsfp); |
5486870f | 744 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 745 | |
e3abe207 DM |
746 | Safefree(parser->lex_brackstack); |
747 | Safefree(parser->lex_casestack); | |
748 | PL_parser = parser->old_parser; | |
749 | Safefree(parser); | |
750 | } | |
751 | ||
752 | ||
ffb4593c NT |
753 | /* |
754 | * Perl_lex_end | |
9cbb5ea2 GS |
755 | * Finalizer for lexing operations. Must be called when the parser is |
756 | * done with the lexer. | |
ffb4593c NT |
757 | */ |
758 | ||
463ee0b2 | 759 | void |
864dbfa3 | 760 | Perl_lex_end(pTHX) |
463ee0b2 | 761 | { |
97aff369 | 762 | dVAR; |
3280af22 | 763 | PL_doextract = FALSE; |
463ee0b2 LW |
764 | } |
765 | ||
ffb4593c | 766 | /* |
f0e67a1d Z |
767 | =for apidoc AmxU|SV *|PL_parser-E<gt>linestr |
768 | ||
769 | Buffer scalar containing the chunk currently under consideration of the | |
770 | text currently being lexed. This is always a plain string scalar (for | |
771 | which C<SvPOK> is true). It is not intended to be used as a scalar by | |
772 | normal scalar means; instead refer to the buffer directly by the pointer | |
773 | variables described below. | |
774 | ||
775 | The lexer maintains various C<char*> pointers to things in the | |
776 | C<PL_parser-E<gt>linestr> buffer. If C<PL_parser-E<gt>linestr> is ever | |
777 | reallocated, all of these pointers must be updated. Don't attempt to | |
778 | do this manually, but rather use L</lex_grow_linestr> if you need to | |
779 | reallocate the buffer. | |
780 | ||
781 | The content of the text chunk in the buffer is commonly exactly one | |
782 | complete line of input, up to and including a newline terminator, | |
783 | but there are situations where it is otherwise. The octets of the | |
784 | buffer may be intended to be interpreted as either UTF-8 or Latin-1. | |
785 | The function L</lex_bufutf8> tells you which. Do not use the C<SvUTF8> | |
786 | flag on this scalar, which may disagree with it. | |
787 | ||
788 | For direct examination of the buffer, the variable | |
789 | L</PL_parser-E<gt>bufend> points to the end of the buffer. The current | |
790 | lexing position is pointed to by L</PL_parser-E<gt>bufptr>. Direct use | |
791 | of these pointers is usually preferable to examination of the scalar | |
792 | through normal scalar means. | |
793 | ||
794 | =for apidoc AmxU|char *|PL_parser-E<gt>bufend | |
795 | ||
796 | Direct pointer to the end of the chunk of text currently being lexed, the | |
797 | end of the lexer buffer. This is equal to C<SvPVX(PL_parser-E<gt>linestr) | |
798 | + SvCUR(PL_parser-E<gt>linestr)>. A NUL character (zero octet) is | |
799 | always located at the end of the buffer, and does not count as part of | |
800 | the buffer's contents. | |
801 | ||
802 | =for apidoc AmxU|char *|PL_parser-E<gt>bufptr | |
803 | ||
804 | Points to the current position of lexing inside the lexer buffer. | |
805 | Characters around this point may be freely examined, within | |
806 | the range delimited by C<SvPVX(L</PL_parser-E<gt>linestr>)> and | |
807 | L</PL_parser-E<gt>bufend>. The octets of the buffer may be intended to be | |
808 | interpreted as either UTF-8 or Latin-1, as indicated by L</lex_bufutf8>. | |
809 | ||
810 | Lexing code (whether in the Perl core or not) moves this pointer past | |
811 | the characters that it consumes. It is also expected to perform some | |
812 | bookkeeping whenever a newline character is consumed. This movement | |
813 | can be more conveniently performed by the function L</lex_read_to>, | |
814 | which handles newlines appropriately. | |
815 | ||
816 | Interpretation of the buffer's octets can be abstracted out by | |
817 | using the slightly higher-level functions L</lex_peek_unichar> and | |
818 | L</lex_read_unichar>. | |
819 | ||
820 | =for apidoc AmxU|char *|PL_parser-E<gt>linestart | |
821 | ||
822 | Points to the start of the current line inside the lexer buffer. | |
823 | This is useful for indicating at which column an error occurred, and | |
824 | not much else. This must be updated by any lexing code that consumes | |
825 | a newline; the function L</lex_read_to> handles this detail. | |
826 | ||
827 | =cut | |
828 | */ | |
829 | ||
830 | /* | |
831 | =for apidoc Amx|bool|lex_bufutf8 | |
832 | ||
833 | Indicates whether the octets in the lexer buffer | |
834 | (L</PL_parser-E<gt>linestr>) should be interpreted as the UTF-8 encoding | |
835 | of Unicode characters. If not, they should be interpreted as Latin-1 | |
836 | characters. This is analogous to the C<SvUTF8> flag for scalars. | |
837 | ||
838 | In UTF-8 mode, it is not guaranteed that the lexer buffer actually | |
839 | contains valid UTF-8. Lexing code must be robust in the face of invalid | |
840 | encoding. | |
841 | ||
842 | The actual C<SvUTF8> flag of the L</PL_parser-E<gt>linestr> scalar | |
843 | is significant, but not the whole story regarding the input character | |
844 | encoding. Normally, when a file is being read, the scalar contains octets | |
845 | and its C<SvUTF8> flag is off, but the octets should be interpreted as | |
846 | UTF-8 if the C<use utf8> pragma is in effect. During a string eval, | |
847 | however, the scalar may have the C<SvUTF8> flag on, and in this case its | |
848 | octets should be interpreted as UTF-8 unless the C<use bytes> pragma | |
849 | is in effect. This logic may change in the future; use this function | |
850 | instead of implementing the logic yourself. | |
851 | ||
852 | =cut | |
853 | */ | |
854 | ||
855 | bool | |
856 | Perl_lex_bufutf8(pTHX) | |
857 | { | |
858 | return UTF; | |
859 | } | |
860 | ||
861 | /* | |
862 | =for apidoc Amx|char *|lex_grow_linestr|STRLEN len | |
863 | ||
864 | Reallocates the lexer buffer (L</PL_parser-E<gt>linestr>) to accommodate | |
865 | at least I<len> octets (including terminating NUL). Returns a | |
866 | pointer to the reallocated buffer. This is necessary before making | |
867 | any direct modification of the buffer that would increase its length. | |
868 | L</lex_stuff_pvn> provides a more convenient way to insert text into | |
869 | the buffer. | |
870 | ||
871 | Do not use C<SvGROW> or C<sv_grow> directly on C<PL_parser-E<gt>linestr>; | |
872 | this function updates all of the lexer's variables that point directly | |
873 | into the buffer. | |
874 | ||
875 | =cut | |
876 | */ | |
877 | ||
878 | char * | |
879 | Perl_lex_grow_linestr(pTHX_ STRLEN len) | |
880 | { | |
881 | SV *linestr; | |
882 | char *buf; | |
883 | STRLEN bufend_pos, bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
884 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
885 | linestr = PL_parser->linestr; | |
886 | buf = SvPVX(linestr); | |
887 | if (len <= SvLEN(linestr)) | |
888 | return buf; | |
889 | bufend_pos = PL_parser->bufend - buf; | |
890 | bufptr_pos = PL_parser->bufptr - buf; | |
891 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
892 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
893 | linestart_pos = PL_parser->linestart - buf; | |
894 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
895 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
896 | buf = sv_grow(linestr, len); | |
897 | PL_parser->bufend = buf + bufend_pos; | |
898 | PL_parser->bufptr = buf + bufptr_pos; | |
899 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
900 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
901 | PL_parser->linestart = buf + linestart_pos; | |
902 | if (PL_parser->last_uni) | |
903 | PL_parser->last_uni = buf + last_uni_pos; | |
904 | if (PL_parser->last_lop) | |
905 | PL_parser->last_lop = buf + last_lop_pos; | |
906 | return buf; | |
907 | } | |
908 | ||
909 | /* | |
83aa740e | 910 | =for apidoc Amx|void|lex_stuff_pvn|const char *pv|STRLEN len|U32 flags |
f0e67a1d Z |
911 | |
912 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
913 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
914 | reallocating the buffer if necessary. This means that lexing code that | |
915 | runs later will see the characters as if they had appeared in the input. | |
916 | It is not recommended to do this as part of normal parsing, and most | |
917 | uses of this facility run the risk of the inserted characters being | |
918 | interpreted in an unintended manner. | |
919 | ||
920 | The string to be inserted is represented by I<len> octets starting | |
921 | at I<pv>. These octets are interpreted as either UTF-8 or Latin-1, | |
922 | according to whether the C<LEX_STUFF_UTF8> flag is set in I<flags>. | |
923 | The characters are recoded for the lexer buffer, according to how the | |
924 | buffer is currently being interpreted (L</lex_bufutf8>). If a string | |
925 | to be interpreted is available as a Perl scalar, the L</lex_stuff_sv> | |
926 | function is more convenient. | |
927 | ||
928 | =cut | |
929 | */ | |
930 | ||
931 | void | |
83aa740e | 932 | Perl_lex_stuff_pvn(pTHX_ const char *pv, STRLEN len, U32 flags) |
f0e67a1d | 933 | { |
749123ff | 934 | dVAR; |
f0e67a1d Z |
935 | char *bufptr; |
936 | PERL_ARGS_ASSERT_LEX_STUFF_PVN; | |
937 | if (flags & ~(LEX_STUFF_UTF8)) | |
938 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_pvn"); | |
939 | if (UTF) { | |
940 | if (flags & LEX_STUFF_UTF8) { | |
941 | goto plain_copy; | |
942 | } else { | |
943 | STRLEN highhalf = 0; | |
83aa740e | 944 | const char *p, *e = pv+len; |
f0e67a1d Z |
945 | for (p = pv; p != e; p++) |
946 | highhalf += !!(((U8)*p) & 0x80); | |
947 | if (!highhalf) | |
948 | goto plain_copy; | |
949 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len+highhalf); | |
950 | bufptr = PL_parser->bufptr; | |
951 | Move(bufptr, bufptr+len+highhalf, PL_parser->bufend+1-bufptr, char); | |
255fdf19 Z |
952 | SvCUR_set(PL_parser->linestr, |
953 | SvCUR(PL_parser->linestr) + len+highhalf); | |
f0e67a1d Z |
954 | PL_parser->bufend += len+highhalf; |
955 | for (p = pv; p != e; p++) { | |
956 | U8 c = (U8)*p; | |
957 | if (c & 0x80) { | |
958 | *bufptr++ = (char)(0xc0 | (c >> 6)); | |
959 | *bufptr++ = (char)(0x80 | (c & 0x3f)); | |
960 | } else { | |
961 | *bufptr++ = (char)c; | |
962 | } | |
963 | } | |
964 | } | |
965 | } else { | |
966 | if (flags & LEX_STUFF_UTF8) { | |
967 | STRLEN highhalf = 0; | |
83aa740e | 968 | const char *p, *e = pv+len; |
f0e67a1d Z |
969 | for (p = pv; p != e; p++) { |
970 | U8 c = (U8)*p; | |
971 | if (c >= 0xc4) { | |
972 | Perl_croak(aTHX_ "Lexing code attempted to stuff " | |
973 | "non-Latin-1 character into Latin-1 input"); | |
974 | } else if (c >= 0xc2 && p+1 != e && | |
975 | (((U8)p[1]) & 0xc0) == 0x80) { | |
976 | p++; | |
977 | highhalf++; | |
978 | } else if (c >= 0x80) { | |
979 | /* malformed UTF-8 */ | |
980 | ENTER; | |
981 | SAVESPTR(PL_warnhook); | |
982 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
983 | utf8n_to_uvuni((U8*)p, e-p, NULL, 0); | |
984 | LEAVE; | |
985 | } | |
986 | } | |
987 | if (!highhalf) | |
988 | goto plain_copy; | |
989 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len-highhalf); | |
990 | bufptr = PL_parser->bufptr; | |
991 | Move(bufptr, bufptr+len-highhalf, PL_parser->bufend+1-bufptr, char); | |
255fdf19 Z |
992 | SvCUR_set(PL_parser->linestr, |
993 | SvCUR(PL_parser->linestr) + len-highhalf); | |
f0e67a1d Z |
994 | PL_parser->bufend += len-highhalf; |
995 | for (p = pv; p != e; p++) { | |
996 | U8 c = (U8)*p; | |
997 | if (c & 0x80) { | |
998 | *bufptr++ = (char)(((c & 0x3) << 6) | (p[1] & 0x3f)); | |
999 | p++; | |
1000 | } else { | |
1001 | *bufptr++ = (char)c; | |
1002 | } | |
1003 | } | |
1004 | } else { | |
1005 | plain_copy: | |
1006 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len); | |
1007 | bufptr = PL_parser->bufptr; | |
1008 | Move(bufptr, bufptr+len, PL_parser->bufend+1-bufptr, char); | |
255fdf19 | 1009 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) + len); |
f0e67a1d Z |
1010 | PL_parser->bufend += len; |
1011 | Copy(pv, bufptr, len, char); | |
1012 | } | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | /* | |
1017 | =for apidoc Amx|void|lex_stuff_sv|SV *sv|U32 flags | |
1018 | ||
1019 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
1020 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
1021 | reallocating the buffer if necessary. This means that lexing code that | |
1022 | runs later will see the characters as if they had appeared in the input. | |
1023 | It is not recommended to do this as part of normal parsing, and most | |
1024 | uses of this facility run the risk of the inserted characters being | |
1025 | interpreted in an unintended manner. | |
1026 | ||
1027 | The string to be inserted is the string value of I<sv>. The characters | |
1028 | are recoded for the lexer buffer, according to how the buffer is currently | |
1029 | being interpreted (L</lex_bufutf8>). If a string to be interpreted is | |
1030 | not already a Perl scalar, the L</lex_stuff_pvn> function avoids the | |
1031 | need to construct a scalar. | |
1032 | ||
1033 | =cut | |
1034 | */ | |
1035 | ||
1036 | void | |
1037 | Perl_lex_stuff_sv(pTHX_ SV *sv, U32 flags) | |
1038 | { | |
1039 | char *pv; | |
1040 | STRLEN len; | |
1041 | PERL_ARGS_ASSERT_LEX_STUFF_SV; | |
1042 | if (flags) | |
1043 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_sv"); | |
1044 | pv = SvPV(sv, len); | |
1045 | lex_stuff_pvn(pv, len, flags | (SvUTF8(sv) ? LEX_STUFF_UTF8 : 0)); | |
1046 | } | |
1047 | ||
1048 | /* | |
1049 | =for apidoc Amx|void|lex_unstuff|char *ptr | |
1050 | ||
1051 | Discards text about to be lexed, from L</PL_parser-E<gt>bufptr> up to | |
1052 | I<ptr>. Text following I<ptr> will be moved, and the buffer shortened. | |
1053 | This hides the discarded text from any lexing code that runs later, | |
1054 | as if the text had never appeared. | |
1055 | ||
1056 | This is not the normal way to consume lexed text. For that, use | |
1057 | L</lex_read_to>. | |
1058 | ||
1059 | =cut | |
1060 | */ | |
1061 | ||
1062 | void | |
1063 | Perl_lex_unstuff(pTHX_ char *ptr) | |
1064 | { | |
1065 | char *buf, *bufend; | |
1066 | STRLEN unstuff_len; | |
1067 | PERL_ARGS_ASSERT_LEX_UNSTUFF; | |
1068 | buf = PL_parser->bufptr; | |
1069 | if (ptr < buf) | |
1070 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1071 | if (ptr == buf) | |
1072 | return; | |
1073 | bufend = PL_parser->bufend; | |
1074 | if (ptr > bufend) | |
1075 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1076 | unstuff_len = ptr - buf; | |
1077 | Move(ptr, buf, bufend+1-ptr, char); | |
1078 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - unstuff_len); | |
1079 | PL_parser->bufend = bufend - unstuff_len; | |
1080 | } | |
1081 | ||
1082 | /* | |
1083 | =for apidoc Amx|void|lex_read_to|char *ptr | |
1084 | ||
1085 | Consume text in the lexer buffer, from L</PL_parser-E<gt>bufptr> up | |
1086 | to I<ptr>. This advances L</PL_parser-E<gt>bufptr> to match I<ptr>, | |
1087 | performing the correct bookkeeping whenever a newline character is passed. | |
1088 | This is the normal way to consume lexed text. | |
1089 | ||
1090 | Interpretation of the buffer's octets can be abstracted out by | |
1091 | using the slightly higher-level functions L</lex_peek_unichar> and | |
1092 | L</lex_read_unichar>. | |
1093 | ||
1094 | =cut | |
1095 | */ | |
1096 | ||
1097 | void | |
1098 | Perl_lex_read_to(pTHX_ char *ptr) | |
1099 | { | |
1100 | char *s; | |
1101 | PERL_ARGS_ASSERT_LEX_READ_TO; | |
1102 | s = PL_parser->bufptr; | |
1103 | if (ptr < s || ptr > PL_parser->bufend) | |
1104 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_to"); | |
1105 | for (; s != ptr; s++) | |
1106 | if (*s == '\n') { | |
1107 | CopLINE_inc(PL_curcop); | |
1108 | PL_parser->linestart = s+1; | |
1109 | } | |
1110 | PL_parser->bufptr = ptr; | |
1111 | } | |
1112 | ||
1113 | /* | |
1114 | =for apidoc Amx|void|lex_discard_to|char *ptr | |
1115 | ||
1116 | Discards the first part of the L</PL_parser-E<gt>linestr> buffer, | |
1117 | up to I<ptr>. The remaining content of the buffer will be moved, and | |
1118 | all pointers into the buffer updated appropriately. I<ptr> must not | |
1119 | be later in the buffer than the position of L</PL_parser-E<gt>bufptr>: | |
1120 | it is not permitted to discard text that has yet to be lexed. | |
1121 | ||
1122 | Normally it is not necessarily to do this directly, because it suffices to | |
1123 | use the implicit discarding behaviour of L</lex_next_chunk> and things | |
1124 | based on it. However, if a token stretches across multiple lines, | |
1f317c95 | 1125 | and the lexing code has kept multiple lines of text in the buffer for |
f0e67a1d Z |
1126 | that purpose, then after completion of the token it would be wise to |
1127 | explicitly discard the now-unneeded earlier lines, to avoid future | |
1128 | multi-line tokens growing the buffer without bound. | |
1129 | ||
1130 | =cut | |
1131 | */ | |
1132 | ||
1133 | void | |
1134 | Perl_lex_discard_to(pTHX_ char *ptr) | |
1135 | { | |
1136 | char *buf; | |
1137 | STRLEN discard_len; | |
1138 | PERL_ARGS_ASSERT_LEX_DISCARD_TO; | |
1139 | buf = SvPVX(PL_parser->linestr); | |
1140 | if (ptr < buf) | |
1141 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1142 | if (ptr == buf) | |
1143 | return; | |
1144 | if (ptr > PL_parser->bufptr) | |
1145 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1146 | discard_len = ptr - buf; | |
1147 | if (PL_parser->oldbufptr < ptr) | |
1148 | PL_parser->oldbufptr = ptr; | |
1149 | if (PL_parser->oldoldbufptr < ptr) | |
1150 | PL_parser->oldoldbufptr = ptr; | |
1151 | if (PL_parser->last_uni && PL_parser->last_uni < ptr) | |
1152 | PL_parser->last_uni = NULL; | |
1153 | if (PL_parser->last_lop && PL_parser->last_lop < ptr) | |
1154 | PL_parser->last_lop = NULL; | |
1155 | Move(ptr, buf, PL_parser->bufend+1-ptr, char); | |
1156 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - discard_len); | |
1157 | PL_parser->bufend -= discard_len; | |
1158 | PL_parser->bufptr -= discard_len; | |
1159 | PL_parser->oldbufptr -= discard_len; | |
1160 | PL_parser->oldoldbufptr -= discard_len; | |
1161 | if (PL_parser->last_uni) | |
1162 | PL_parser->last_uni -= discard_len; | |
1163 | if (PL_parser->last_lop) | |
1164 | PL_parser->last_lop -= discard_len; | |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | =for apidoc Amx|bool|lex_next_chunk|U32 flags | |
1169 | ||
1170 | Reads in the next chunk of text to be lexed, appending it to | |
1171 | L</PL_parser-E<gt>linestr>. This should be called when lexing code has | |
1172 | looked to the end of the current chunk and wants to know more. It is | |
1173 | usual, but not necessary, for lexing to have consumed the entirety of | |
1174 | the current chunk at this time. | |
1175 | ||
1176 | If L</PL_parser-E<gt>bufptr> is pointing to the very end of the current | |
1177 | chunk (i.e., the current chunk has been entirely consumed), normally the | |
1178 | current chunk will be discarded at the same time that the new chunk is | |
1179 | read in. If I<flags> includes C<LEX_KEEP_PREVIOUS>, the current chunk | |
1180 | will not be discarded. If the current chunk has not been entirely | |
1181 | consumed, then it will not be discarded regardless of the flag. | |
1182 | ||
1183 | Returns true if some new text was added to the buffer, or false if the | |
1184 | buffer has reached the end of the input text. | |
1185 | ||
1186 | =cut | |
1187 | */ | |
1188 | ||
1189 | #define LEX_FAKE_EOF 0x80000000 | |
1190 | ||
1191 | bool | |
1192 | Perl_lex_next_chunk(pTHX_ U32 flags) | |
1193 | { | |
1194 | SV *linestr; | |
1195 | char *buf; | |
1196 | STRLEN old_bufend_pos, new_bufend_pos; | |
1197 | STRLEN bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
1198 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
17cc9359 | 1199 | bool got_some_for_debugger = 0; |
f0e67a1d Z |
1200 | bool got_some; |
1201 | if (flags & ~(LEX_KEEP_PREVIOUS|LEX_FAKE_EOF)) | |
1202 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_next_chunk"); | |
f0e67a1d Z |
1203 | linestr = PL_parser->linestr; |
1204 | buf = SvPVX(linestr); | |
1205 | if (!(flags & LEX_KEEP_PREVIOUS) && | |
1206 | PL_parser->bufptr == PL_parser->bufend) { | |
1207 | old_bufend_pos = bufptr_pos = oldbufptr_pos = oldoldbufptr_pos = 0; | |
1208 | linestart_pos = 0; | |
1209 | if (PL_parser->last_uni != PL_parser->bufend) | |
1210 | PL_parser->last_uni = NULL; | |
1211 | if (PL_parser->last_lop != PL_parser->bufend) | |
1212 | PL_parser->last_lop = NULL; | |
1213 | last_uni_pos = last_lop_pos = 0; | |
1214 | *buf = 0; | |
1215 | SvCUR(linestr) = 0; | |
1216 | } else { | |
1217 | old_bufend_pos = PL_parser->bufend - buf; | |
1218 | bufptr_pos = PL_parser->bufptr - buf; | |
1219 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
1220 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
1221 | linestart_pos = PL_parser->linestart - buf; | |
1222 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
1223 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
1224 | } | |
1225 | if (flags & LEX_FAKE_EOF) { | |
1226 | goto eof; | |
1227 | } else if (!PL_parser->rsfp) { | |
1228 | got_some = 0; | |
1229 | } else if (filter_gets(linestr, old_bufend_pos)) { | |
1230 | got_some = 1; | |
17cc9359 | 1231 | got_some_for_debugger = 1; |
f0e67a1d | 1232 | } else { |
580561a3 Z |
1233 | if (!SvPOK(linestr)) /* can get undefined by filter_gets */ |
1234 | sv_setpvs(linestr, ""); | |
f0e67a1d Z |
1235 | eof: |
1236 | /* End of real input. Close filehandle (unless it was STDIN), | |
1237 | * then add implicit termination. | |
1238 | */ | |
1239 | if ((PerlIO*)PL_parser->rsfp == PerlIO_stdin()) | |
1240 | PerlIO_clearerr(PL_parser->rsfp); | |
1241 | else if (PL_parser->rsfp) | |
1242 | (void)PerlIO_close(PL_parser->rsfp); | |
1243 | PL_parser->rsfp = NULL; | |
1244 | PL_doextract = FALSE; | |
1245 | #ifdef PERL_MAD | |
1246 | if (PL_madskills && !PL_in_eval && (PL_minus_p || PL_minus_n)) | |
1247 | PL_faketokens = 1; | |
1248 | #endif | |
1249 | if (!PL_in_eval && PL_minus_p) { | |
1250 | sv_catpvs(linestr, | |
1251 | /*{*/";}continue{print or die qq(-p destination: $!\\n);}"); | |
1252 | PL_minus_n = PL_minus_p = 0; | |
1253 | } else if (!PL_in_eval && PL_minus_n) { | |
1254 | sv_catpvs(linestr, /*{*/";}"); | |
1255 | PL_minus_n = 0; | |
1256 | } else | |
1257 | sv_catpvs(linestr, ";"); | |
1258 | got_some = 1; | |
1259 | } | |
1260 | buf = SvPVX(linestr); | |
1261 | new_bufend_pos = SvCUR(linestr); | |
1262 | PL_parser->bufend = buf + new_bufend_pos; | |
1263 | PL_parser->bufptr = buf + bufptr_pos; | |
1264 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
1265 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
1266 | PL_parser->linestart = buf + linestart_pos; | |
1267 | if (PL_parser->last_uni) | |
1268 | PL_parser->last_uni = buf + last_uni_pos; | |
1269 | if (PL_parser->last_lop) | |
1270 | PL_parser->last_lop = buf + last_lop_pos; | |
17cc9359 | 1271 | if (got_some_for_debugger && (PERLDB_LINE || PERLDB_SAVESRC) && |
f0e67a1d Z |
1272 | PL_curstash != PL_debstash) { |
1273 | /* debugger active and we're not compiling the debugger code, | |
1274 | * so store the line into the debugger's array of lines | |
1275 | */ | |
1276 | update_debugger_info(NULL, buf+old_bufend_pos, | |
1277 | new_bufend_pos-old_bufend_pos); | |
1278 | } | |
1279 | return got_some; | |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | =for apidoc Amx|I32|lex_peek_unichar|U32 flags | |
1284 | ||
1285 | Looks ahead one (Unicode) character in the text currently being lexed. | |
1286 | Returns the codepoint (unsigned integer value) of the next character, | |
1287 | or -1 if lexing has reached the end of the input text. To consume the | |
1288 | peeked character, use L</lex_read_unichar>. | |
1289 | ||
1290 | If the next character is in (or extends into) the next chunk of input | |
1291 | text, the next chunk will be read in. Normally the current chunk will be | |
1292 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1293 | then the current chunk will not be discarded. | |
1294 | ||
1295 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1296 | is encountered, an exception is generated. | |
1297 | ||
1298 | =cut | |
1299 | */ | |
1300 | ||
1301 | I32 | |
1302 | Perl_lex_peek_unichar(pTHX_ U32 flags) | |
1303 | { | |
749123ff | 1304 | dVAR; |
f0e67a1d Z |
1305 | char *s, *bufend; |
1306 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1307 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_peek_unichar"); | |
1308 | s = PL_parser->bufptr; | |
1309 | bufend = PL_parser->bufend; | |
1310 | if (UTF) { | |
1311 | U8 head; | |
1312 | I32 unichar; | |
1313 | STRLEN len, retlen; | |
1314 | if (s == bufend) { | |
1315 | if (!lex_next_chunk(flags)) | |
1316 | return -1; | |
1317 | s = PL_parser->bufptr; | |
1318 | bufend = PL_parser->bufend; | |
1319 | } | |
1320 | head = (U8)*s; | |
1321 | if (!(head & 0x80)) | |
1322 | return head; | |
1323 | if (head & 0x40) { | |
1324 | len = PL_utf8skip[head]; | |
1325 | while ((STRLEN)(bufend-s) < len) { | |
1326 | if (!lex_next_chunk(flags | LEX_KEEP_PREVIOUS)) | |
1327 | break; | |
1328 | s = PL_parser->bufptr; | |
1329 | bufend = PL_parser->bufend; | |
1330 | } | |
1331 | } | |
1332 | unichar = utf8n_to_uvuni((U8*)s, bufend-s, &retlen, UTF8_CHECK_ONLY); | |
1333 | if (retlen == (STRLEN)-1) { | |
1334 | /* malformed UTF-8 */ | |
1335 | ENTER; | |
1336 | SAVESPTR(PL_warnhook); | |
1337 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
1338 | utf8n_to_uvuni((U8*)s, bufend-s, NULL, 0); | |
1339 | LEAVE; | |
1340 | } | |
1341 | return unichar; | |
1342 | } else { | |
1343 | if (s == bufend) { | |
1344 | if (!lex_next_chunk(flags)) | |
1345 | return -1; | |
1346 | s = PL_parser->bufptr; | |
1347 | } | |
1348 | return (U8)*s; | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | /* | |
1353 | =for apidoc Amx|I32|lex_read_unichar|U32 flags | |
1354 | ||
1355 | Reads the next (Unicode) character in the text currently being lexed. | |
1356 | Returns the codepoint (unsigned integer value) of the character read, | |
1357 | and moves L</PL_parser-E<gt>bufptr> past the character, or returns -1 | |
1358 | if lexing has reached the end of the input text. To non-destructively | |
1359 | examine the next character, use L</lex_peek_unichar> instead. | |
1360 | ||
1361 | If the next character is in (or extends into) the next chunk of input | |
1362 | text, the next chunk will be read in. Normally the current chunk will be | |
1363 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1364 | then the current chunk will not be discarded. | |
1365 | ||
1366 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1367 | is encountered, an exception is generated. | |
1368 | ||
1369 | =cut | |
1370 | */ | |
1371 | ||
1372 | I32 | |
1373 | Perl_lex_read_unichar(pTHX_ U32 flags) | |
1374 | { | |
1375 | I32 c; | |
1376 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1377 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_unichar"); | |
1378 | c = lex_peek_unichar(flags); | |
1379 | if (c != -1) { | |
1380 | if (c == '\n') | |
1381 | CopLINE_inc(PL_curcop); | |
1382 | PL_parser->bufptr += UTF8SKIP(PL_parser->bufptr); | |
1383 | } | |
1384 | return c; | |
1385 | } | |
1386 | ||
1387 | /* | |
1388 | =for apidoc Amx|void|lex_read_space|U32 flags | |
1389 | ||
1390 | Reads optional spaces, in Perl style, in the text currently being | |
1391 | lexed. The spaces may include ordinary whitespace characters and | |
1392 | Perl-style comments. C<#line> directives are processed if encountered. | |
1393 | L</PL_parser-E<gt>bufptr> is moved past the spaces, so that it points | |
1394 | at a non-space character (or the end of the input text). | |
1395 | ||
1396 | If spaces extend into the next chunk of input text, the next chunk will | |
1397 | be read in. Normally the current chunk will be discarded at the same | |
1398 | time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> then the current | |
1399 | chunk will not be discarded. | |
1400 | ||
1401 | =cut | |
1402 | */ | |
1403 | ||
f0998909 Z |
1404 | #define LEX_NO_NEXT_CHUNK 0x80000000 |
1405 | ||
f0e67a1d Z |
1406 | void |
1407 | Perl_lex_read_space(pTHX_ U32 flags) | |
1408 | { | |
1409 | char *s, *bufend; | |
1410 | bool need_incline = 0; | |
f0998909 | 1411 | if (flags & ~(LEX_KEEP_PREVIOUS|LEX_NO_NEXT_CHUNK)) |
f0e67a1d Z |
1412 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_space"); |
1413 | #ifdef PERL_MAD | |
1414 | if (PL_skipwhite) { | |
1415 | sv_free(PL_skipwhite); | |
1416 | PL_skipwhite = NULL; | |
1417 | } | |
1418 | if (PL_madskills) | |
1419 | PL_skipwhite = newSVpvs(""); | |
1420 | #endif /* PERL_MAD */ | |
1421 | s = PL_parser->bufptr; | |
1422 | bufend = PL_parser->bufend; | |
1423 | while (1) { | |
1424 | char c = *s; | |
1425 | if (c == '#') { | |
1426 | do { | |
1427 | c = *++s; | |
1428 | } while (!(c == '\n' || (c == 0 && s == bufend))); | |
1429 | } else if (c == '\n') { | |
1430 | s++; | |
1431 | PL_parser->linestart = s; | |
1432 | if (s == bufend) | |
1433 | need_incline = 1; | |
1434 | else | |
1435 | incline(s); | |
1436 | } else if (isSPACE(c)) { | |
1437 | s++; | |
1438 | } else if (c == 0 && s == bufend) { | |
1439 | bool got_more; | |
1440 | #ifdef PERL_MAD | |
1441 | if (PL_madskills) | |
1442 | sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr); | |
1443 | #endif /* PERL_MAD */ | |
f0998909 Z |
1444 | if (flags & LEX_NO_NEXT_CHUNK) |
1445 | break; | |
f0e67a1d Z |
1446 | PL_parser->bufptr = s; |
1447 | CopLINE_inc(PL_curcop); | |
1448 | got_more = lex_next_chunk(flags); | |
1449 | CopLINE_dec(PL_curcop); | |
1450 | s = PL_parser->bufptr; | |
1451 | bufend = PL_parser->bufend; | |
1452 | if (!got_more) | |
1453 | break; | |
1454 | if (need_incline && PL_parser->rsfp) { | |
1455 | incline(s); | |
1456 | need_incline = 0; | |
1457 | } | |
1458 | } else { | |
1459 | break; | |
1460 | } | |
1461 | } | |
1462 | #ifdef PERL_MAD | |
1463 | if (PL_madskills) | |
1464 | sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr); | |
1465 | #endif /* PERL_MAD */ | |
1466 | PL_parser->bufptr = s; | |
1467 | } | |
1468 | ||
1469 | /* | |
ffb4593c NT |
1470 | * S_incline |
1471 | * This subroutine has nothing to do with tilting, whether at windmills | |
1472 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 1473 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 1474 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
1475 | * # line 500 "foo.pm" |
1476 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
1477 | */ |
1478 | ||
76e3520e | 1479 | STATIC void |
d9095cec | 1480 | S_incline(pTHX_ const char *s) |
463ee0b2 | 1481 | { |
97aff369 | 1482 | dVAR; |
d9095cec NC |
1483 | const char *t; |
1484 | const char *n; | |
1485 | const char *e; | |
463ee0b2 | 1486 | |
7918f24d NC |
1487 | PERL_ARGS_ASSERT_INCLINE; |
1488 | ||
57843af0 | 1489 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
1490 | if (*s++ != '#') |
1491 | return; | |
d4c19fe8 AL |
1492 | while (SPACE_OR_TAB(*s)) |
1493 | s++; | |
73659bf1 GS |
1494 | if (strnEQ(s, "line", 4)) |
1495 | s += 4; | |
1496 | else | |
1497 | return; | |
084592ab | 1498 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 1499 | s++; |
4e553d73 | 1500 | else |
73659bf1 | 1501 | return; |
d4c19fe8 AL |
1502 | while (SPACE_OR_TAB(*s)) |
1503 | s++; | |
463ee0b2 LW |
1504 | if (!isDIGIT(*s)) |
1505 | return; | |
d4c19fe8 | 1506 | |
463ee0b2 LW |
1507 | n = s; |
1508 | while (isDIGIT(*s)) | |
1509 | s++; | |
07714eb4 | 1510 | if (!SPACE_OR_TAB(*s) && *s != '\r' && *s != '\n' && *s != '\0') |
26b6dc3f | 1511 | return; |
bf4acbe4 | 1512 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 1513 | s++; |
73659bf1 | 1514 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 1515 | s++; |
73659bf1 GS |
1516 | e = t + 1; |
1517 | } | |
463ee0b2 | 1518 | else { |
c35e046a AL |
1519 | t = s; |
1520 | while (!isSPACE(*t)) | |
1521 | t++; | |
73659bf1 | 1522 | e = t; |
463ee0b2 | 1523 | } |
bf4acbe4 | 1524 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
1525 | e++; |
1526 | if (*e != '\n' && *e != '\0') | |
1527 | return; /* false alarm */ | |
1528 | ||
f4dd75d9 | 1529 | if (t - s > 0) { |
d9095cec | 1530 | const STRLEN len = t - s; |
8a5ee598 | 1531 | #ifndef USE_ITHREADS |
19bad673 NC |
1532 | SV *const temp_sv = CopFILESV(PL_curcop); |
1533 | const char *cf; | |
1534 | STRLEN tmplen; | |
1535 | ||
1536 | if (temp_sv) { | |
1537 | cf = SvPVX(temp_sv); | |
1538 | tmplen = SvCUR(temp_sv); | |
1539 | } else { | |
1540 | cf = NULL; | |
1541 | tmplen = 0; | |
1542 | } | |
1543 | ||
42d9b98d | 1544 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { |
e66cf94c RGS |
1545 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
1546 | * to *{"::_<newfilename"} */ | |
44867030 NC |
1547 | /* However, the long form of evals is only turned on by the |
1548 | debugger - usually they're "(eval %lu)" */ | |
1549 | char smallbuf[128]; | |
1550 | char *tmpbuf; | |
1551 | GV **gvp; | |
d9095cec | 1552 | STRLEN tmplen2 = len; |
798b63bc | 1553 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
1554 | tmpbuf = smallbuf; |
1555 | else | |
2ae0db35 | 1556 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
1557 | tmpbuf[0] = '_'; |
1558 | tmpbuf[1] = '<'; | |
2ae0db35 | 1559 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 1560 | tmplen += 2; |
8a5ee598 RGS |
1561 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
1562 | if (gvp) { | |
44867030 NC |
1563 | char *tmpbuf2; |
1564 | GV *gv2; | |
1565 | ||
1566 | if (tmplen2 + 2 <= sizeof smallbuf) | |
1567 | tmpbuf2 = smallbuf; | |
1568 | else | |
1569 | Newx(tmpbuf2, tmplen2 + 2, char); | |
1570 | ||
1571 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
1572 | /* Either they malloc'd it, or we malloc'd it, | |
1573 | so no prefix is present in ours. */ | |
1574 | tmpbuf2[0] = '_'; | |
1575 | tmpbuf2[1] = '<'; | |
1576 | } | |
1577 | ||
1578 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
1579 | tmplen2 += 2; | |
1580 | ||
8a5ee598 | 1581 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 1582 | if (!isGV(gv2)) { |
8a5ee598 | 1583 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
1584 | /* adjust ${"::_<newfilename"} to store the new file name */ |
1585 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
3cb1dbc6 NC |
1586 | GvHV(gv2) = MUTABLE_HV(SvREFCNT_inc(GvHV(*gvp))); |
1587 | GvAV(gv2) = MUTABLE_AV(SvREFCNT_inc(GvAV(*gvp))); | |
e5527e4b | 1588 | } |
44867030 NC |
1589 | |
1590 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 1591 | } |
e66cf94c | 1592 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 1593 | } |
8a5ee598 | 1594 | #endif |
05ec9bb3 | 1595 | CopFILE_free(PL_curcop); |
d9095cec | 1596 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 1597 | } |
57843af0 | 1598 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
1599 | } |
1600 | ||
29595ff2 | 1601 | #ifdef PERL_MAD |
cd81e915 | 1602 | /* skip space before PL_thistoken */ |
29595ff2 NC |
1603 | |
1604 | STATIC char * | |
1605 | S_skipspace0(pTHX_ register char *s) | |
1606 | { | |
7918f24d NC |
1607 | PERL_ARGS_ASSERT_SKIPSPACE0; |
1608 | ||
29595ff2 NC |
1609 | s = skipspace(s); |
1610 | if (!PL_madskills) | |
1611 | return s; | |
cd81e915 NC |
1612 | if (PL_skipwhite) { |
1613 | if (!PL_thiswhite) | |
6b29d1f5 | 1614 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
1615 | sv_catsv(PL_thiswhite, PL_skipwhite); |
1616 | sv_free(PL_skipwhite); | |
1617 | PL_skipwhite = 0; | |
1618 | } | |
1619 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
1620 | return s; |
1621 | } | |
1622 | ||
cd81e915 | 1623 | /* skip space after PL_thistoken */ |
29595ff2 NC |
1624 | |
1625 | STATIC char * | |
1626 | S_skipspace1(pTHX_ register char *s) | |
1627 | { | |
d4c19fe8 | 1628 | const char *start = s; |
29595ff2 NC |
1629 | I32 startoff = start - SvPVX(PL_linestr); |
1630 | ||
7918f24d NC |
1631 | PERL_ARGS_ASSERT_SKIPSPACE1; |
1632 | ||
29595ff2 NC |
1633 | s = skipspace(s); |
1634 | if (!PL_madskills) | |
1635 | return s; | |
1636 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 1637 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 1638 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
1639 | PL_thistoken = newSVpvn(tstart, start - tstart); |
1640 | } | |
1641 | PL_realtokenstart = -1; | |
1642 | if (PL_skipwhite) { | |
1643 | if (!PL_nextwhite) | |
6b29d1f5 | 1644 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
1645 | sv_catsv(PL_nextwhite, PL_skipwhite); |
1646 | sv_free(PL_skipwhite); | |
1647 | PL_skipwhite = 0; | |
29595ff2 NC |
1648 | } |
1649 | return s; | |
1650 | } | |
1651 | ||
1652 | STATIC char * | |
1653 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
1654 | { | |
c35e046a AL |
1655 | char *start; |
1656 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
1657 | const I32 startoff = s - SvPVX(PL_linestr); | |
1658 | ||
7918f24d NC |
1659 | PERL_ARGS_ASSERT_SKIPSPACE2; |
1660 | ||
29595ff2 NC |
1661 | s = skipspace(s); |
1662 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
1663 | if (!PL_madskills || !svp) | |
1664 | return s; | |
1665 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 1666 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 1667 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
1668 | PL_thistoken = newSVpvn(tstart, start - tstart); |
1669 | PL_realtokenstart = -1; | |
29595ff2 | 1670 | } |
cd81e915 | 1671 | if (PL_skipwhite) { |
29595ff2 | 1672 | if (!*svp) |
6b29d1f5 | 1673 | *svp = newSVpvs(""); |
cd81e915 NC |
1674 | sv_setsv(*svp, PL_skipwhite); |
1675 | sv_free(PL_skipwhite); | |
1676 | PL_skipwhite = 0; | |
29595ff2 NC |
1677 | } |
1678 | ||
1679 | return s; | |
1680 | } | |
1681 | #endif | |
1682 | ||
80a702cd | 1683 | STATIC void |
15f169a1 | 1684 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *const buf, STRLEN len) |
80a702cd RGS |
1685 | { |
1686 | AV *av = CopFILEAVx(PL_curcop); | |
1687 | if (av) { | |
b9f83d2f | 1688 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
1689 | if (orig_sv) |
1690 | sv_setsv(sv, orig_sv); | |
1691 | else | |
1692 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
1693 | (void)SvIOK_on(sv); |
1694 | SvIV_set(sv, 0); | |
1695 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
1696 | } | |
1697 | } | |
1698 | ||
ffb4593c NT |
1699 | /* |
1700 | * S_skipspace | |
1701 | * Called to gobble the appropriate amount and type of whitespace. | |
1702 | * Skips comments as well. | |
1703 | */ | |
1704 | ||
76e3520e | 1705 | STATIC char * |
cea2e8a9 | 1706 | S_skipspace(pTHX_ register char *s) |
a687059c | 1707 | { |
5db06880 | 1708 | #ifdef PERL_MAD |
f0e67a1d Z |
1709 | char *start = s; |
1710 | #endif /* PERL_MAD */ | |
7918f24d | 1711 | PERL_ARGS_ASSERT_SKIPSPACE; |
f0e67a1d | 1712 | #ifdef PERL_MAD |
cd81e915 NC |
1713 | if (PL_skipwhite) { |
1714 | sv_free(PL_skipwhite); | |
f0e67a1d | 1715 | PL_skipwhite = NULL; |
5db06880 | 1716 | } |
f0e67a1d | 1717 | #endif /* PERL_MAD */ |
3280af22 | 1718 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 1719 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 1720 | s++; |
f0e67a1d Z |
1721 | } else { |
1722 | STRLEN bufptr_pos = PL_bufptr - SvPVX(PL_linestr); | |
1723 | PL_bufptr = s; | |
f0998909 Z |
1724 | lex_read_space(LEX_KEEP_PREVIOUS | |
1725 | (PL_sublex_info.sub_inwhat || PL_lex_state == LEX_FORMLINE ? | |
1726 | LEX_NO_NEXT_CHUNK : 0)); | |
3280af22 | 1727 | s = PL_bufptr; |
f0e67a1d Z |
1728 | PL_bufptr = SvPVX(PL_linestr) + bufptr_pos; |
1729 | if (PL_linestart > PL_bufptr) | |
1730 | PL_bufptr = PL_linestart; | |
1731 | return s; | |
463ee0b2 | 1732 | } |
5db06880 | 1733 | #ifdef PERL_MAD |
f0e67a1d Z |
1734 | if (PL_madskills) |
1735 | PL_skipwhite = newSVpvn(start, s-start); | |
1736 | #endif /* PERL_MAD */ | |
5db06880 | 1737 | return s; |
a687059c | 1738 | } |
378cc40b | 1739 | |
ffb4593c NT |
1740 | /* |
1741 | * S_check_uni | |
1742 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1743 | * used. An ambiguous piece of code would be: | |
1744 | * rand + 5 | |
1745 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1746 | * the +5 is its argument. | |
1747 | */ | |
1748 | ||
76e3520e | 1749 | STATIC void |
cea2e8a9 | 1750 | S_check_uni(pTHX) |
ba106d47 | 1751 | { |
97aff369 | 1752 | dVAR; |
d4c19fe8 AL |
1753 | const char *s; |
1754 | const char *t; | |
2f3197b3 | 1755 | |
3280af22 | 1756 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1757 | return; |
3280af22 NIS |
1758 | while (isSPACE(*PL_last_uni)) |
1759 | PL_last_uni++; | |
c35e046a AL |
1760 | s = PL_last_uni; |
1761 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1762 | s++; | |
3280af22 | 1763 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1764 | return; |
6136c704 | 1765 | |
9b387841 NC |
1766 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), |
1767 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", | |
1768 | (int)(s - PL_last_uni), PL_last_uni); | |
2f3197b3 LW |
1769 | } |
1770 | ||
ffb4593c NT |
1771 | /* |
1772 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1773 | * with a subroutine, S_lop() for which LOP is just another name. | |
1774 | */ | |
1775 | ||
a0d0e21e LW |
1776 | #define LOP(f,x) return lop(f,x,s) |
1777 | ||
ffb4593c NT |
1778 | /* |
1779 | * S_lop | |
1780 | * Build a list operator (or something that might be one). The rules: | |
1781 | * - if we have a next token, then it's a list operator [why?] | |
1782 | * - if the next thing is an opening paren, then it's a function | |
1783 | * - else it's a list operator | |
1784 | */ | |
1785 | ||
76e3520e | 1786 | STATIC I32 |
a0be28da | 1787 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1788 | { |
97aff369 | 1789 | dVAR; |
7918f24d NC |
1790 | |
1791 | PERL_ARGS_ASSERT_LOP; | |
1792 | ||
6154021b | 1793 | pl_yylval.ival = f; |
35c8bce7 | 1794 | CLINE; |
3280af22 NIS |
1795 | PL_expect = x; |
1796 | PL_bufptr = s; | |
1797 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1798 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1799 | #ifdef PERL_MAD |
1800 | if (PL_lasttoke) | |
1801 | return REPORT(LSTOP); | |
1802 | #else | |
3280af22 | 1803 | if (PL_nexttoke) |
bbf60fe6 | 1804 | return REPORT(LSTOP); |
5db06880 | 1805 | #endif |
79072805 | 1806 | if (*s == '(') |
bbf60fe6 | 1807 | return REPORT(FUNC); |
29595ff2 | 1808 | s = PEEKSPACE(s); |
79072805 | 1809 | if (*s == '(') |
bbf60fe6 | 1810 | return REPORT(FUNC); |
79072805 | 1811 | else |
bbf60fe6 | 1812 | return REPORT(LSTOP); |
79072805 LW |
1813 | } |
1814 | ||
5db06880 NC |
1815 | #ifdef PERL_MAD |
1816 | /* | |
1817 | * S_start_force | |
1818 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1819 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1820 | * on the "pop" end. | |
1821 | */ | |
1822 | ||
1823 | STATIC void | |
1824 | S_start_force(pTHX_ int where) | |
1825 | { | |
1826 | int i; | |
1827 | ||
cd81e915 | 1828 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1829 | where = PL_lasttoke; |
cd81e915 NC |
1830 | assert(PL_curforce < 0 || PL_curforce == where); |
1831 | if (PL_curforce != where) { | |
5db06880 NC |
1832 | for (i = PL_lasttoke; i > where; --i) { |
1833 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1834 | } | |
1835 | PL_lasttoke++; | |
1836 | } | |
cd81e915 | 1837 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1838 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1839 | PL_curforce = where; |
1840 | if (PL_nextwhite) { | |
5db06880 | 1841 | if (PL_madskills) |
6b29d1f5 | 1842 | curmad('^', newSVpvs("")); |
cd81e915 | 1843 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1844 | } |
1845 | } | |
1846 | ||
1847 | STATIC void | |
1848 | S_curmad(pTHX_ char slot, SV *sv) | |
1849 | { | |
1850 | MADPROP **where; | |
1851 | ||
1852 | if (!sv) | |
1853 | return; | |
cd81e915 NC |
1854 | if (PL_curforce < 0) |
1855 | where = &PL_thismad; | |
5db06880 | 1856 | else |
cd81e915 | 1857 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1858 | |
cd81e915 | 1859 | if (PL_faketokens) |
76f68e9b | 1860 | sv_setpvs(sv, ""); |
5db06880 NC |
1861 | else { |
1862 | if (!IN_BYTES) { | |
1863 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1864 | SvUTF8_on(sv); | |
1865 | else if (PL_encoding) { | |
1866 | sv_recode_to_utf8(sv, PL_encoding); | |
1867 | } | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | /* keep a slot open for the head of the list? */ | |
1872 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1873 | (*where)->mad_key = slot; | |
daba3364 | 1874 | sv_free(MUTABLE_SV(((*where)->mad_val))); |
5db06880 NC |
1875 | (*where)->mad_val = (void*)sv; |
1876 | } | |
1877 | else | |
1878 | addmad(newMADsv(slot, sv), where, 0); | |
1879 | } | |
1880 | #else | |
b3f24c00 MHM |
1881 | # define start_force(where) NOOP |
1882 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1883 | #endif |
1884 | ||
ffb4593c NT |
1885 | /* |
1886 | * S_force_next | |
9cbb5ea2 | 1887 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1888 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1889 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1890 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1891 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1892 | */ |
1893 | ||
4e553d73 | 1894 | STATIC void |
cea2e8a9 | 1895 | S_force_next(pTHX_ I32 type) |
79072805 | 1896 | { |
97aff369 | 1897 | dVAR; |
704d4215 GG |
1898 | #ifdef DEBUGGING |
1899 | if (DEBUG_T_TEST) { | |
1900 | PerlIO_printf(Perl_debug_log, "### forced token:\n"); | |
f05d7009 | 1901 | tokereport(type, &NEXTVAL_NEXTTOKE); |
704d4215 GG |
1902 | } |
1903 | #endif | |
5db06880 | 1904 | #ifdef PERL_MAD |
cd81e915 | 1905 | if (PL_curforce < 0) |
5db06880 | 1906 | start_force(PL_lasttoke); |
cd81e915 | 1907 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1908 | if (PL_lex_state != LEX_KNOWNEXT) |
1909 | PL_lex_defer = PL_lex_state; | |
1910 | PL_lex_state = LEX_KNOWNEXT; | |
1911 | PL_lex_expect = PL_expect; | |
cd81e915 | 1912 | PL_curforce = -1; |
5db06880 | 1913 | #else |
3280af22 NIS |
1914 | PL_nexttype[PL_nexttoke] = type; |
1915 | PL_nexttoke++; | |
1916 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1917 | PL_lex_defer = PL_lex_state; | |
1918 | PL_lex_expect = PL_expect; | |
1919 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1920 | } |
5db06880 | 1921 | #endif |
79072805 LW |
1922 | } |
1923 | ||
28ac2b49 Z |
1924 | void |
1925 | Perl_yyunlex(pTHX) | |
1926 | { | |
1927 | if (PL_parser->yychar != YYEMPTY) { | |
1928 | start_force(-1); | |
1929 | NEXTVAL_NEXTTOKE = PL_parser->yylval; | |
1930 | force_next(PL_parser->yychar); | |
1931 | PL_parser->yychar = YYEMPTY; | |
1932 | } | |
1933 | } | |
1934 | ||
d0a148a6 | 1935 | STATIC SV * |
15f169a1 | 1936 | S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len) |
d0a148a6 | 1937 | { |
97aff369 | 1938 | dVAR; |
740cce10 | 1939 | SV * const sv = newSVpvn_utf8(start, len, |
eaf7a4d2 CS |
1940 | !IN_BYTES |
1941 | && UTF | |
1942 | && !is_ascii_string((const U8*)start, len) | |
740cce10 | 1943 | && is_utf8_string((const U8*)start, len)); |
d0a148a6 NC |
1944 | return sv; |
1945 | } | |
1946 | ||
ffb4593c NT |
1947 | /* |
1948 | * S_force_word | |
1949 | * When the lexer knows the next thing is a word (for instance, it has | |
1950 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1951 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1952 | * lookahead. | |
ffb4593c NT |
1953 | * |
1954 | * Arguments: | |
b1b65b59 | 1955 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1956 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1957 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1958 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1959 | * int allow_pack : if true, : characters will also be allowed (require, | |
1960 | * use, etc. do this) | |
9cbb5ea2 | 1961 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1962 | */ |
1963 | ||
76e3520e | 1964 | STATIC char * |
cea2e8a9 | 1965 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1966 | { |
97aff369 | 1967 | dVAR; |
463ee0b2 LW |
1968 | register char *s; |
1969 | STRLEN len; | |
4e553d73 | 1970 | |
7918f24d NC |
1971 | PERL_ARGS_ASSERT_FORCE_WORD; |
1972 | ||
29595ff2 | 1973 | start = SKIPSPACE1(start); |
463ee0b2 | 1974 | s = start; |
7e2040f0 | 1975 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1976 | (allow_pack && *s == ':') || |
15f0808c | 1977 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1978 | { |
3280af22 | 1979 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1980 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1981 | return start; |
cd81e915 | 1982 | start_force(PL_curforce); |
5db06880 NC |
1983 | if (PL_madskills) |
1984 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1985 | if (token == METHOD) { |
29595ff2 | 1986 | s = SKIPSPACE1(s); |
463ee0b2 | 1987 | if (*s == '(') |
3280af22 | 1988 | PL_expect = XTERM; |
463ee0b2 | 1989 | else { |
3280af22 | 1990 | PL_expect = XOPERATOR; |
463ee0b2 | 1991 | } |
79072805 | 1992 | } |
e74e6b3d | 1993 | if (PL_madskills) |
63575281 | 1994 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1995 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1996 | = (OP*)newSVOP(OP_CONST,0, |
1997 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1998 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1999 | force_next(token); |
2000 | } | |
2001 | return s; | |
2002 | } | |
2003 | ||
ffb4593c NT |
2004 | /* |
2005 | * S_force_ident | |
9cbb5ea2 | 2006 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
2007 | * text only contains the "foo" portion. The first argument is a pointer |
2008 | * to the "foo", and the second argument is the type symbol to prefix. | |
2009 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 2010 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
2011 | */ |
2012 | ||
76e3520e | 2013 | STATIC void |
bfed75c6 | 2014 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 2015 | { |
97aff369 | 2016 | dVAR; |
7918f24d NC |
2017 | |
2018 | PERL_ARGS_ASSERT_FORCE_IDENT; | |
2019 | ||
c35e046a | 2020 | if (*s) { |
90e5519e NC |
2021 | const STRLEN len = strlen(s); |
2022 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 2023 | start_force(PL_curforce); |
9ded7720 | 2024 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 2025 | force_next(WORD); |
748a9306 | 2026 | if (kind) { |
11343788 | 2027 | o->op_private = OPpCONST_ENTERED; |
55497cff | 2028 | /* XXX see note in pp_entereval() for why we forgo typo |
2029 | warnings if the symbol must be introduced in an eval. | |
2030 | GSAR 96-10-12 */ | |
90e5519e NC |
2031 | gv_fetchpvn_flags(s, len, |
2032 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
2033 | : GV_ADD, | |
2034 | kind == '$' ? SVt_PV : | |
2035 | kind == '@' ? SVt_PVAV : | |
2036 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 2037 | SVt_PVGV |
90e5519e | 2038 | ); |
748a9306 | 2039 | } |
79072805 LW |
2040 | } |
2041 | } | |
2042 | ||
1571675a GS |
2043 | NV |
2044 | Perl_str_to_version(pTHX_ SV *sv) | |
2045 | { | |
2046 | NV retval = 0.0; | |
2047 | NV nshift = 1.0; | |
2048 | STRLEN len; | |
cfd0369c | 2049 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 2050 | const char * const end = start + len; |
504618e9 | 2051 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
7918f24d NC |
2052 | |
2053 | PERL_ARGS_ASSERT_STR_TO_VERSION; | |
2054 | ||
1571675a | 2055 | while (start < end) { |
ba210ebe | 2056 | STRLEN skip; |
1571675a GS |
2057 | UV n; |
2058 | if (utf) | |
9041c2e3 | 2059 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
2060 | else { |
2061 | n = *(U8*)start; | |
2062 | skip = 1; | |
2063 | } | |
2064 | retval += ((NV)n)/nshift; | |
2065 | start += skip; | |
2066 | nshift *= 1000; | |
2067 | } | |
2068 | return retval; | |
2069 | } | |
2070 | ||
4e553d73 | 2071 | /* |
ffb4593c NT |
2072 | * S_force_version |
2073 | * Forces the next token to be a version number. | |
e759cc13 RGS |
2074 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
2075 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
2076 | * must use an alternative parsing method). | |
ffb4593c NT |
2077 | */ |
2078 | ||
76e3520e | 2079 | STATIC char * |
e759cc13 | 2080 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 2081 | { |
97aff369 | 2082 | dVAR; |
5f66b61c | 2083 | OP *version = NULL; |
44dcb63b | 2084 | char *d; |
5db06880 NC |
2085 | #ifdef PERL_MAD |
2086 | I32 startoff = s - SvPVX(PL_linestr); | |
2087 | #endif | |
89bfa8cd | 2088 | |
7918f24d NC |
2089 | PERL_ARGS_ASSERT_FORCE_VERSION; |
2090 | ||
29595ff2 | 2091 | s = SKIPSPACE1(s); |
89bfa8cd | 2092 | |
44dcb63b | 2093 | d = s; |
dd629d5b | 2094 | if (*d == 'v') |
44dcb63b | 2095 | d++; |
44dcb63b | 2096 | if (isDIGIT(*d)) { |
e759cc13 RGS |
2097 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
2098 | d++; | |
5db06880 NC |
2099 | #ifdef PERL_MAD |
2100 | if (PL_madskills) { | |
cd81e915 | 2101 | start_force(PL_curforce); |
5db06880 NC |
2102 | curmad('X', newSVpvn(s,d-s)); |
2103 | } | |
2104 | #endif | |
4e4da3ac | 2105 | if (*d == ';' || isSPACE(*d) || *d == '{' || *d == '}' || !*d) { |
dd629d5b | 2106 | SV *ver; |
8d08d9ba DG |
2107 | #ifdef USE_LOCALE_NUMERIC |
2108 | char *loc = setlocale(LC_NUMERIC, "C"); | |
2109 | #endif | |
6154021b | 2110 | s = scan_num(s, &pl_yylval); |
8d08d9ba DG |
2111 | #ifdef USE_LOCALE_NUMERIC |
2112 | setlocale(LC_NUMERIC, loc); | |
2113 | #endif | |
6154021b | 2114 | version = pl_yylval.opval; |
dd629d5b GS |
2115 | ver = cSVOPx(version)->op_sv; |
2116 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 2117 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 2118 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 2119 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 2120 | } |
89bfa8cd | 2121 | } |
5db06880 NC |
2122 | else if (guessing) { |
2123 | #ifdef PERL_MAD | |
2124 | if (PL_madskills) { | |
cd81e915 NC |
2125 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2126 | PL_nextwhite = 0; | |
5db06880 NC |
2127 | s = SvPVX(PL_linestr) + startoff; |
2128 | } | |
2129 | #endif | |
e759cc13 | 2130 | return s; |
5db06880 | 2131 | } |
89bfa8cd | 2132 | } |
2133 | ||
5db06880 NC |
2134 | #ifdef PERL_MAD |
2135 | if (PL_madskills && !version) { | |
cd81e915 NC |
2136 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2137 | PL_nextwhite = 0; | |
5db06880 NC |
2138 | s = SvPVX(PL_linestr) + startoff; |
2139 | } | |
2140 | #endif | |
89bfa8cd | 2141 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 2142 | start_force(PL_curforce); |
9ded7720 | 2143 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 2144 | force_next(WORD); |
89bfa8cd | 2145 | |
e759cc13 | 2146 | return s; |
89bfa8cd | 2147 | } |
2148 | ||
ffb4593c | 2149 | /* |
91152fc1 DG |
2150 | * S_force_strict_version |
2151 | * Forces the next token to be a version number using strict syntax rules. | |
2152 | */ | |
2153 | ||
2154 | STATIC char * | |
2155 | S_force_strict_version(pTHX_ char *s) | |
2156 | { | |
2157 | dVAR; | |
2158 | OP *version = NULL; | |
2159 | #ifdef PERL_MAD | |
2160 | I32 startoff = s - SvPVX(PL_linestr); | |
2161 | #endif | |
2162 | const char *errstr = NULL; | |
2163 | ||
2164 | PERL_ARGS_ASSERT_FORCE_STRICT_VERSION; | |
2165 | ||
2166 | while (isSPACE(*s)) /* leading whitespace */ | |
2167 | s++; | |
2168 | ||
2169 | if (is_STRICT_VERSION(s,&errstr)) { | |
2170 | SV *ver = newSV(0); | |
2171 | s = (char *)scan_version(s, ver, 0); | |
2172 | version = newSVOP(OP_CONST, 0, ver); | |
2173 | } | |
4e4da3ac Z |
2174 | else if ( (*s != ';' && *s != '{' && *s != '}' ) && |
2175 | (s = SKIPSPACE1(s), (*s != ';' && *s != '{' && *s != '}' ))) | |
2176 | { | |
91152fc1 DG |
2177 | PL_bufptr = s; |
2178 | if (errstr) | |
2179 | yyerror(errstr); /* version required */ | |
2180 | return s; | |
2181 | } | |
2182 | ||
2183 | #ifdef PERL_MAD | |
2184 | if (PL_madskills && !version) { | |
2185 | sv_free(PL_nextwhite); /* let next token collect whitespace */ | |
2186 | PL_nextwhite = 0; | |
2187 | s = SvPVX(PL_linestr) + startoff; | |
2188 | } | |
2189 | #endif | |
2190 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
2191 | start_force(PL_curforce); | |
2192 | NEXTVAL_NEXTTOKE.opval = version; | |
2193 | force_next(WORD); | |
2194 | ||
2195 | return s; | |
2196 | } | |
2197 | ||
2198 | /* | |
ffb4593c NT |
2199 | * S_tokeq |
2200 | * Tokenize a quoted string passed in as an SV. It finds the next | |
2201 | * chunk, up to end of string or a backslash. It may make a new | |
2202 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
2203 | * turns \\ into \. | |
2204 | */ | |
2205 | ||
76e3520e | 2206 | STATIC SV * |
cea2e8a9 | 2207 | S_tokeq(pTHX_ SV *sv) |
79072805 | 2208 | { |
97aff369 | 2209 | dVAR; |
79072805 LW |
2210 | register char *s; |
2211 | register char *send; | |
2212 | register char *d; | |
b3ac6de7 IZ |
2213 | STRLEN len = 0; |
2214 | SV *pv = sv; | |
79072805 | 2215 | |
7918f24d NC |
2216 | PERL_ARGS_ASSERT_TOKEQ; |
2217 | ||
79072805 | 2218 | if (!SvLEN(sv)) |
b3ac6de7 | 2219 | goto finish; |
79072805 | 2220 | |
a0d0e21e | 2221 | s = SvPV_force(sv, len); |
21a311ee | 2222 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 2223 | goto finish; |
463ee0b2 | 2224 | send = s + len; |
79072805 LW |
2225 | while (s < send && *s != '\\') |
2226 | s++; | |
2227 | if (s == send) | |
b3ac6de7 | 2228 | goto finish; |
79072805 | 2229 | d = s; |
be4731d2 | 2230 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 2231 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 2232 | } |
79072805 LW |
2233 | while (s < send) { |
2234 | if (*s == '\\') { | |
a0d0e21e | 2235 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
2236 | s++; /* all that, just for this */ |
2237 | } | |
2238 | *d++ = *s++; | |
2239 | } | |
2240 | *d = '\0'; | |
95a20fc0 | 2241 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 2242 | finish: |
3280af22 | 2243 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 2244 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
2245 | return sv; |
2246 | } | |
2247 | ||
ffb4593c NT |
2248 | /* |
2249 | * Now come three functions related to double-quote context, | |
2250 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
2251 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
2252 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
2253 | * to handle functions and concatenation. | |
2254 | * They assume that whoever calls them will be setting up a fake | |
2255 | * join call, because each subthing puts a ',' after it. This lets | |
2256 | * "lower \luPpEr" | |
2257 | * become | |
2258 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
2259 | * | |
2260 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
2261 | * arguments and join's arguments are created or not). | |
2262 | */ | |
2263 | ||
2264 | /* | |
2265 | * S_sublex_start | |
6154021b | 2266 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
2267 | * |
2268 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 2269 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
2270 | * |
2271 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
2272 | * | |
2273 | * Everything else becomes a FUNC. | |
2274 | * | |
2275 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
2276 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
2277 | * call to S_sublex_push(). | |
2278 | */ | |
2279 | ||
76e3520e | 2280 | STATIC I32 |
cea2e8a9 | 2281 | S_sublex_start(pTHX) |
79072805 | 2282 | { |
97aff369 | 2283 | dVAR; |
6154021b | 2284 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
2285 | |
2286 | if (op_type == OP_NULL) { | |
6154021b | 2287 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2288 | PL_lex_op = NULL; |
79072805 LW |
2289 | return THING; |
2290 | } | |
2291 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 2292 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
2293 | |
2294 | if (SvTYPE(sv) == SVt_PVIV) { | |
2295 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
2296 | STRLEN len; | |
96a5add6 | 2297 | const char * const p = SvPV_const(sv, len); |
740cce10 | 2298 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
2299 | SvREFCNT_dec(sv); |
2300 | sv = nsv; | |
4e553d73 | 2301 | } |
6154021b | 2302 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 2303 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
2304 | /* Allow <FH> // "foo" */ |
2305 | if (op_type == OP_READLINE) | |
2306 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
2307 | return THING; |
2308 | } | |
e3f73d4e RGS |
2309 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
2310 | /* readpipe() vas overriden */ | |
2311 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 2312 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 2313 | PL_lex_op = NULL; |
e3f73d4e RGS |
2314 | PL_lex_stuff = NULL; |
2315 | return THING; | |
2316 | } | |
79072805 | 2317 | |
3280af22 | 2318 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 2319 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
2320 | PL_sublex_info.sub_op = PL_lex_op; |
2321 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 2322 | |
3280af22 NIS |
2323 | PL_expect = XTERM; |
2324 | if (PL_lex_op) { | |
6154021b | 2325 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2326 | PL_lex_op = NULL; |
55497cff | 2327 | return PMFUNC; |
2328 | } | |
2329 | else | |
2330 | return FUNC; | |
2331 | } | |
2332 | ||
ffb4593c NT |
2333 | /* |
2334 | * S_sublex_push | |
2335 | * Create a new scope to save the lexing state. The scope will be | |
2336 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
2337 | * to the uc, lc, etc. found before. | |
2338 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
2339 | */ | |
2340 | ||
76e3520e | 2341 | STATIC I32 |
cea2e8a9 | 2342 | S_sublex_push(pTHX) |
55497cff | 2343 | { |
27da23d5 | 2344 | dVAR; |
f46d017c | 2345 | ENTER; |
55497cff | 2346 | |
3280af22 | 2347 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 2348 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 2349 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
2350 | SAVEI32(PL_lex_casemods); |
2351 | SAVEI32(PL_lex_starts); | |
651b5b28 | 2352 | SAVEI8(PL_lex_state); |
7766f137 | 2353 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 2354 | SAVEI16(PL_lex_inwhat); |
57843af0 | 2355 | SAVECOPLINE(PL_curcop); |
3280af22 | 2356 | SAVEPPTR(PL_bufptr); |
8452ff4b | 2357 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
2358 | SAVEPPTR(PL_oldbufptr); |
2359 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
2360 | SAVEPPTR(PL_last_lop); |
2361 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
2362 | SAVEPPTR(PL_linestart); |
2363 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
2364 | SAVEGENERICPV(PL_lex_brackstack); |
2365 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
2366 | |
2367 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 2368 | PL_lex_stuff = NULL; |
3280af22 | 2369 | |
9cbb5ea2 GS |
2370 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
2371 | = SvPVX(PL_linestr); | |
3280af22 | 2372 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 2373 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2374 | SAVEFREESV(PL_linestr); |
2375 | ||
2376 | PL_lex_dojoin = FALSE; | |
2377 | PL_lex_brackets = 0; | |
a02a5408 JC |
2378 | Newx(PL_lex_brackstack, 120, char); |
2379 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
2380 | PL_lex_casemods = 0; |
2381 | *PL_lex_casestack = '\0'; | |
2382 | PL_lex_starts = 0; | |
2383 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 2384 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
2385 | |
2386 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
2387 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
2388 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 2389 | else |
5f66b61c | 2390 | PL_lex_inpat = NULL; |
79072805 | 2391 | |
55497cff | 2392 | return '('; |
79072805 LW |
2393 | } |
2394 | ||
ffb4593c NT |
2395 | /* |
2396 | * S_sublex_done | |
2397 | * Restores lexer state after a S_sublex_push. | |
2398 | */ | |
2399 | ||
76e3520e | 2400 | STATIC I32 |
cea2e8a9 | 2401 | S_sublex_done(pTHX) |
79072805 | 2402 | { |
27da23d5 | 2403 | dVAR; |
3280af22 | 2404 | if (!PL_lex_starts++) { |
396482e1 | 2405 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
2406 | if (SvUTF8(PL_linestr)) |
2407 | SvUTF8_on(sv); | |
3280af22 | 2408 | PL_expect = XOPERATOR; |
6154021b | 2409 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
2410 | return THING; |
2411 | } | |
2412 | ||
3280af22 NIS |
2413 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
2414 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 2415 | return yylex(); |
79072805 LW |
2416 | } |
2417 | ||
ffb4593c | 2418 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
2419 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
2420 | PL_linestr = PL_lex_repl; | |
2421 | PL_lex_inpat = 0; | |
2422 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
2423 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 2424 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2425 | SAVEFREESV(PL_linestr); |
2426 | PL_lex_dojoin = FALSE; | |
2427 | PL_lex_brackets = 0; | |
3280af22 NIS |
2428 | PL_lex_casemods = 0; |
2429 | *PL_lex_casestack = '\0'; | |
2430 | PL_lex_starts = 0; | |
25da4f38 | 2431 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
2432 | PL_lex_state = LEX_INTERPNORMAL; |
2433 | PL_lex_starts++; | |
e9fa98b2 HS |
2434 | /* we don't clear PL_lex_repl here, so that we can check later |
2435 | whether this is an evalled subst; that means we rely on the | |
2436 | logic to ensure sublex_done() is called again only via the | |
2437 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 2438 | } |
e9fa98b2 | 2439 | else { |
3280af22 | 2440 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 2441 | PL_lex_repl = NULL; |
e9fa98b2 | 2442 | } |
79072805 | 2443 | return ','; |
ffed7fef LW |
2444 | } |
2445 | else { | |
5db06880 NC |
2446 | #ifdef PERL_MAD |
2447 | if (PL_madskills) { | |
cd81e915 NC |
2448 | if (PL_thiswhite) { |
2449 | if (!PL_endwhite) | |
6b29d1f5 | 2450 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
2451 | sv_catsv(PL_endwhite, PL_thiswhite); |
2452 | PL_thiswhite = 0; | |
2453 | } | |
2454 | if (PL_thistoken) | |
76f68e9b | 2455 | sv_setpvs(PL_thistoken,""); |
5db06880 | 2456 | else |
cd81e915 | 2457 | PL_realtokenstart = -1; |
5db06880 NC |
2458 | } |
2459 | #endif | |
f46d017c | 2460 | LEAVE; |
3280af22 NIS |
2461 | PL_bufend = SvPVX(PL_linestr); |
2462 | PL_bufend += SvCUR(PL_linestr); | |
2463 | PL_expect = XOPERATOR; | |
09bef843 | 2464 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 2465 | return ')'; |
ffed7fef LW |
2466 | } |
2467 | } | |
2468 | ||
02aa26ce NT |
2469 | /* |
2470 | scan_const | |
2471 | ||
2472 | Extracts a pattern, double-quoted string, or transliteration. This | |
2473 | is terrifying code. | |
2474 | ||
94def140 | 2475 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 2476 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 2477 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 2478 | |
94def140 TS |
2479 | Returns a pointer to the character scanned up to. If this is |
2480 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 2481 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 2482 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
2483 | by looking at the next characters herself. |
2484 | ||
02aa26ce NT |
2485 | In patterns: |
2486 | backslashes: | |
ff3f963a | 2487 | constants: \N{NAME} only |
02aa26ce NT |
2488 | case and quoting: \U \Q \E |
2489 | stops on @ and $, but not for $ as tail anchor | |
2490 | ||
2491 | In transliterations: | |
2492 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
2493 | of the string, which indicates a range. If the range is in bytes, |
2494 | scan_const expands the range to the full set of intermediate | |
2495 | characters. If the range is in utf8, the hyphen is replaced with | |
2496 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
2497 | |
2498 | In double-quoted strings: | |
2499 | backslashes: | |
2500 | double-quoted style: \r and \n | |
ff3f963a | 2501 | constants: \x31, etc. |
94def140 | 2502 | deprecated backrefs: \1 (in substitution replacements) |
02aa26ce NT |
2503 | case and quoting: \U \Q \E |
2504 | stops on @ and $ | |
2505 | ||
2506 | scan_const does *not* construct ops to handle interpolated strings. | |
2507 | It stops processing as soon as it finds an embedded $ or @ variable | |
2508 | and leaves it to the caller to work out what's going on. | |
2509 | ||
94def140 TS |
2510 | embedded arrays (whether in pattern or not) could be: |
2511 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
2512 | ||
2513 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
2514 | |
2515 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
2516 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 2517 | followed by one of "()| \r\n\t" |
02aa26ce NT |
2518 | |
2519 | \1 (backreferences) are turned into $1 | |
2520 | ||
2521 | The structure of the code is | |
2522 | while (there's a character to process) { | |
94def140 TS |
2523 | handle transliteration ranges |
2524 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
2525 | skip #-initiated comments in //x patterns | |
2526 | check for embedded arrays | |
02aa26ce NT |
2527 | check for embedded scalars |
2528 | if (backslash) { | |
94def140 | 2529 | deprecate \1 in substitution replacements |
02aa26ce NT |
2530 | handle string-changing backslashes \l \U \Q \E, etc. |
2531 | switch (what was escaped) { | |
94def140 | 2532 | handle \- in a transliteration (becomes a literal -) |
ff3f963a | 2533 | if a pattern and not \N{, go treat as regular character |
94def140 TS |
2534 | handle \132 (octal characters) |
2535 | handle \x15 and \x{1234} (hex characters) | |
ff3f963a | 2536 | handle \N{name} (named characters, also \N{3,5} in a pattern) |
94def140 TS |
2537 | handle \cV (control characters) |
2538 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce | 2539 | } (end switch) |
77a135fe | 2540 | continue |
02aa26ce | 2541 | } (end if backslash) |
77a135fe | 2542 | handle regular character |
02aa26ce | 2543 | } (end while character to read) |
4e553d73 | 2544 | |
02aa26ce NT |
2545 | */ |
2546 | ||
76e3520e | 2547 | STATIC char * |
cea2e8a9 | 2548 | S_scan_const(pTHX_ char *start) |
79072805 | 2549 | { |
97aff369 | 2550 | dVAR; |
3280af22 | 2551 | register char *send = PL_bufend; /* end of the constant */ |
77a135fe KW |
2552 | SV *sv = newSV(send - start); /* sv for the constant. See |
2553 | note below on sizing. */ | |
02aa26ce NT |
2554 | register char *s = start; /* start of the constant */ |
2555 | register char *d = SvPVX(sv); /* destination for copies */ | |
2556 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 2557 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 | 2558 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
77a135fe KW |
2559 | I32 this_utf8 = UTF; /* Is the source string assumed |
2560 | to be UTF8? But, this can | |
2561 | show as true when the source | |
2562 | isn't utf8, as for example | |
2563 | when it is entirely composed | |
2564 | of hex constants */ | |
2565 | ||
2566 | /* Note on sizing: The scanned constant is placed into sv, which is | |
2567 | * initialized by newSV() assuming one byte of output for every byte of | |
2568 | * input. This routine expects newSV() to allocate an extra byte for a | |
2569 | * trailing NUL, which this routine will append if it gets to the end of | |
2570 | * the input. There may be more bytes of input than output (eg., \N{LATIN | |
2571 | * CAPITAL LETTER A}), or more output than input if the constant ends up | |
2572 | * recoded to utf8, but each time a construct is found that might increase | |
2573 | * the needed size, SvGROW() is called. Its size parameter each time is | |
2574 | * based on the best guess estimate at the time, namely the length used so | |
2575 | * far, plus the length the current construct will occupy, plus room for | |
2576 | * the trailing NUL, plus one byte for every input byte still unscanned */ | |
2577 | ||
012bcf8d | 2578 | UV uv; |
4c3a8340 TS |
2579 | #ifdef EBCDIC |
2580 | UV literal_endpoint = 0; | |
e294cc5d | 2581 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 2582 | #endif |
012bcf8d | 2583 | |
7918f24d NC |
2584 | PERL_ARGS_ASSERT_SCAN_CONST; |
2585 | ||
2b9d42f0 NIS |
2586 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
2587 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
2588 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
2589 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
2590 | } | |
2591 | ||
2592 | ||
79072805 | 2593 | while (s < send || dorange) { |
ff3f963a | 2594 | |
02aa26ce | 2595 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 2596 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 2597 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 2598 | if (dorange) { |
1ba5c669 JH |
2599 | I32 i; /* current expanded character */ |
2600 | I32 min; /* first character in range */ | |
2601 | I32 max; /* last character in range */ | |
02aa26ce | 2602 | |
e294cc5d JH |
2603 | #ifdef EBCDIC |
2604 | UV uvmax = 0; | |
2605 | #endif | |
2606 | ||
2607 | if (has_utf8 | |
2608 | #ifdef EBCDIC | |
2609 | && !native_range | |
2610 | #endif | |
2611 | ) { | |
9d4ba2ae | 2612 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
2613 | char *e = d++; |
2614 | while (e-- > c) | |
2615 | *(e + 1) = *e; | |
25716404 | 2616 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
2617 | /* mark the range as done, and continue */ |
2618 | dorange = FALSE; | |
2619 | didrange = TRUE; | |
2620 | continue; | |
2621 | } | |
2b9d42f0 | 2622 | |
95a20fc0 | 2623 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
2624 | #ifdef EBCDIC |
2625 | SvGROW(sv, | |
2626 | SvLEN(sv) + (has_utf8 ? | |
2627 | (512 - UTF_CONTINUATION_MARK + | |
2628 | UNISKIP(0x100)) | |
2629 | : 256)); | |
2630 | /* How many two-byte within 0..255: 128 in UTF-8, | |
2631 | * 96 in UTF-8-mod. */ | |
2632 | #else | |
9cbb5ea2 | 2633 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 2634 | #endif |
9cbb5ea2 | 2635 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
2636 | #ifdef EBCDIC |
2637 | if (has_utf8) { | |
2638 | int j; | |
2639 | for (j = 0; j <= 1; j++) { | |
2640 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
2641 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
2642 | if (j) | |
2643 | min = (U8)uv; | |
2644 | else if (uv < 256) | |
2645 | max = (U8)uv; | |
2646 | else { | |
2647 | max = (U8)0xff; /* only to \xff */ | |
2648 | uvmax = uv; /* \x{100} to uvmax */ | |
2649 | } | |
2650 | d = c; /* eat endpoint chars */ | |
2651 | } | |
2652 | } | |
2653 | else { | |
2654 | #endif | |
2655 | d -= 2; /* eat the first char and the - */ | |
2656 | min = (U8)*d; /* first char in range */ | |
2657 | max = (U8)d[1]; /* last char in range */ | |
2658 | #ifdef EBCDIC | |
2659 | } | |
2660 | #endif | |
8ada0baa | 2661 | |
c2e66d9e | 2662 | if (min > max) { |
01ec43d0 | 2663 | Perl_croak(aTHX_ |
d1573ac7 | 2664 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 2665 | (char)min, (char)max); |
c2e66d9e GS |
2666 | } |
2667 | ||
c7f1f016 | 2668 | #ifdef EBCDIC |
4c3a8340 TS |
2669 | if (literal_endpoint == 2 && |
2670 | ((isLOWER(min) && isLOWER(max)) || | |
2671 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
2672 | if (isLOWER(min)) { |
2673 | for (i = min; i <= max; i++) | |
2674 | if (isLOWER(i)) | |
db42d148 | 2675 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2676 | } else { |
2677 | for (i = min; i <= max; i++) | |
2678 | if (isUPPER(i)) | |
db42d148 | 2679 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2680 | } |
2681 | } | |
2682 | else | |
2683 | #endif | |
2684 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2685 | #ifdef EBCDIC |
2686 | if (has_utf8) { | |
2687 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2688 | if (UNI_IS_INVARIANT(ch)) | |
2689 | *d++ = (U8)i; | |
2690 | else { | |
2691 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2692 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2693 | } | |
2694 | } | |
2695 | else | |
2696 | #endif | |
2697 | *d++ = (char)i; | |
2698 | ||
2699 | #ifdef EBCDIC | |
2700 | if (uvmax) { | |
2701 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2702 | if (uvmax > 0x101) | |
2703 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2704 | if (uvmax > 0x100) | |
2705 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2706 | } | |
2707 | #endif | |
02aa26ce NT |
2708 | |
2709 | /* mark the range as done, and continue */ | |
79072805 | 2710 | dorange = FALSE; |
01ec43d0 | 2711 | didrange = TRUE; |
4c3a8340 TS |
2712 | #ifdef EBCDIC |
2713 | literal_endpoint = 0; | |
2714 | #endif | |
79072805 | 2715 | continue; |
4e553d73 | 2716 | } |
02aa26ce NT |
2717 | |
2718 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2719 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2720 | if (didrange) { |
1fafa243 | 2721 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2722 | } |
e294cc5d JH |
2723 | if (has_utf8 |
2724 | #ifdef EBCDIC | |
2725 | && !native_range | |
2726 | #endif | |
2727 | ) { | |
25716404 | 2728 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2729 | s++; |
2730 | continue; | |
2731 | } | |
79072805 LW |
2732 | dorange = TRUE; |
2733 | s++; | |
01ec43d0 GS |
2734 | } |
2735 | else { | |
2736 | didrange = FALSE; | |
4c3a8340 TS |
2737 | #ifdef EBCDIC |
2738 | literal_endpoint = 0; | |
e294cc5d | 2739 | native_range = TRUE; |
4c3a8340 | 2740 | #endif |
01ec43d0 | 2741 | } |
79072805 | 2742 | } |
02aa26ce NT |
2743 | |
2744 | /* if we get here, we're not doing a transliteration */ | |
2745 | ||
0f5d15d6 IZ |
2746 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2747 | except for the last char, which will be done separately. */ | |
3280af22 | 2748 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2749 | if (s[2] == '#') { |
e994fd66 | 2750 | while (s+1 < send && *s != ')') |
db42d148 | 2751 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2752 | } |
2753 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2754 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2755 | { |
cc6b7395 | 2756 | I32 count = 1; |
0f5d15d6 | 2757 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2758 | char c; |
2759 | ||
d9f97599 GS |
2760 | while (count && (c = *regparse)) { |
2761 | if (c == '\\' && regparse[1]) | |
2762 | regparse++; | |
4e553d73 | 2763 | else if (c == '{') |
cc6b7395 | 2764 | count++; |
4e553d73 | 2765 | else if (c == '}') |
cc6b7395 | 2766 | count--; |
d9f97599 | 2767 | regparse++; |
cc6b7395 | 2768 | } |
e994fd66 | 2769 | if (*regparse != ')') |
5bdf89e7 | 2770 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2771 | while (s < regparse) |
db42d148 | 2772 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2773 | } |
748a9306 | 2774 | } |
02aa26ce NT |
2775 | |
2776 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2777 | else if (*s == '#' && PL_lex_inpat && |
2778 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2779 | while (s+1 < send && *s != '\n') |
db42d148 | 2780 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2781 | } |
02aa26ce | 2782 | |
5d1d4326 | 2783 | /* check for embedded arrays |
da6eedaa | 2784 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2785 | */ |
1749ea0d TS |
2786 | else if (*s == '@' && s[1]) { |
2787 | if (isALNUM_lazy_if(s+1,UTF)) | |
2788 | break; | |
2789 | if (strchr(":'{$", s[1])) | |
2790 | break; | |
2791 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2792 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2793 | } | |
02aa26ce NT |
2794 | |
2795 | /* check for embedded scalars. only stop if we're sure it's a | |
2796 | variable. | |
2797 | */ | |
79072805 | 2798 | else if (*s == '$') { |
3280af22 | 2799 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2800 | break; |
77772344 | 2801 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) { |
a2a5de95 NC |
2802 | if (s[1] == '\\') { |
2803 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
2804 | "Possible unintended interpolation of $\\ in regex"); | |
77772344 | 2805 | } |
79072805 | 2806 | break; /* in regexp, $ might be tail anchor */ |
77772344 | 2807 | } |
79072805 | 2808 | } |
02aa26ce | 2809 | |
2b9d42f0 NIS |
2810 | /* End of else if chain - OP_TRANS rejoin rest */ |
2811 | ||
02aa26ce | 2812 | /* backslashes */ |
79072805 | 2813 | if (*s == '\\' && s+1 < send) { |
ff3f963a KW |
2814 | char* e; /* Can be used for ending '}', etc. */ |
2815 | ||
79072805 | 2816 | s++; |
02aa26ce | 2817 | |
7d0fc23c KW |
2818 | /* warn on \1 - \9 in substitution replacements, but note that \11 |
2819 | * is an octal; and \19 is \1 followed by '9' */ | |
3280af22 | 2820 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2821 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2822 | { |
a2a5de95 | 2823 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2824 | *--s = '$'; |
2825 | break; | |
2826 | } | |
02aa26ce NT |
2827 | |
2828 | /* string-change backslash escapes */ | |
3280af22 | 2829 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2830 | --s; |
2831 | break; | |
2832 | } | |
ff3f963a KW |
2833 | /* In a pattern, process \N, but skip any other backslash escapes. |
2834 | * This is because we don't want to translate an escape sequence | |
2835 | * into a meta symbol and have the regex compiler use the meta | |
2836 | * symbol meaning, e.g. \x{2E} would be confused with a dot. But | |
2837 | * in spite of this, we do have to process \N here while the proper | |
2838 | * charnames handler is in scope. See bugs #56444 and #62056. | |
2839 | * There is a complication because \N in a pattern may also stand | |
2840 | * for 'match a non-nl', and not mean a charname, in which case its | |
2841 | * processing should be deferred to the regex compiler. To be a | |
2842 | * charname it must be followed immediately by a '{', and not look | |
2843 | * like \N followed by a curly quantifier, i.e., not something like | |
2844 | * \N{3,}. regcurly returns a boolean indicating if it is a legal | |
2845 | * quantifier */ | |
2846 | else if (PL_lex_inpat | |
2847 | && (*s != 'N' | |
2848 | || s[1] != '{' | |
2849 | || regcurly(s + 1))) | |
2850 | { | |
cc74c5bd TS |
2851 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
2852 | goto default_action; | |
2853 | } | |
02aa26ce | 2854 | |
79072805 | 2855 | switch (*s) { |
02aa26ce NT |
2856 | |
2857 | /* quoted - in transliterations */ | |
79072805 | 2858 | case '-': |
3280af22 | 2859 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2860 | *d++ = *s++; |
2861 | continue; | |
2862 | } | |
2863 | /* FALL THROUGH */ | |
2864 | default: | |
11b8faa4 | 2865 | { |
a2a5de95 NC |
2866 | if ((isALPHA(*s) || isDIGIT(*s))) |
2867 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
2868 | "Unrecognized escape \\%c passed through", | |
2869 | *s); | |
11b8faa4 | 2870 | /* default action is to copy the quoted character */ |
f9a63242 | 2871 | goto default_action; |
11b8faa4 | 2872 | } |
02aa26ce | 2873 | |
632403cc | 2874 | /* eg. \132 indicates the octal constant 0132 */ |
79072805 LW |
2875 | case '0': case '1': case '2': case '3': |
2876 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2877 | { |
53305cf1 NC |
2878 | I32 flags = 0; |
2879 | STRLEN len = 3; | |
77a135fe | 2880 | uv = NATIVE_TO_UNI(grok_oct(s, &len, &flags, NULL)); |
ba210ebe JH |
2881 | s += len; |
2882 | } | |
012bcf8d | 2883 | goto NUM_ESCAPE_INSERT; |
02aa26ce | 2884 | |
f0a2b745 KW |
2885 | /* eg. \o{24} indicates the octal constant \024 */ |
2886 | case 'o': | |
2887 | { | |
2888 | STRLEN len; | |
454155d9 | 2889 | const char* error; |
f0a2b745 | 2890 | |
454155d9 | 2891 | bool valid = grok_bslash_o(s, &uv, &len, &error, 1); |
f0a2b745 | 2892 | s += len; |
454155d9 | 2893 | if (! valid) { |
f0a2b745 KW |
2894 | yyerror(error); |
2895 | continue; | |
2896 | } | |
2897 | goto NUM_ESCAPE_INSERT; | |
2898 | } | |
2899 | ||
77a135fe | 2900 | /* eg. \x24 indicates the hex constant 0x24 */ |
79072805 | 2901 | case 'x': |
a0ed51b3 LW |
2902 | ++s; |
2903 | if (*s == '{') { | |
9d4ba2ae | 2904 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2905 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2906 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2907 | STRLEN len; |
355860ce | 2908 | |
53305cf1 | 2909 | ++s; |
adaeee49 | 2910 | if (!e) { |
a0ed51b3 | 2911 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2912 | continue; |
ba210ebe | 2913 | } |
53305cf1 | 2914 | len = e - s; |
77a135fe | 2915 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe | 2916 | s = e + 1; |
a0ed51b3 LW |
2917 | } |
2918 | else { | |
ba210ebe | 2919 | { |
53305cf1 | 2920 | STRLEN len = 2; |
a4c04bdc | 2921 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
77a135fe | 2922 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe JH |
2923 | s += len; |
2924 | } | |
012bcf8d GS |
2925 | } |
2926 | ||
2927 | NUM_ESCAPE_INSERT: | |
ff3f963a KW |
2928 | /* Insert oct or hex escaped character. There will always be |
2929 | * enough room in sv since such escapes will be longer than any | |
2930 | * UTF-8 sequence they can end up as, except if they force us | |
2931 | * to recode the rest of the string into utf8 */ | |
ba7cea30 | 2932 | |
77a135fe | 2933 | /* Here uv is the ordinal of the next character being added in |
ff3f963a | 2934 | * unicode (converted from native). */ |
77a135fe | 2935 | if (!UNI_IS_INVARIANT(uv)) { |
9aa983d2 | 2936 | if (!has_utf8 && uv > 255) { |
77a135fe KW |
2937 | /* Might need to recode whatever we have accumulated so |
2938 | * far if it contains any chars variant in utf8 or | |
2939 | * utf-ebcdic. */ | |
2940 | ||
2941 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
2942 | SvPOK_on(sv); | |
2943 | *d = '\0'; | |
77a135fe | 2944 | /* See Note on sizing above. */ |
7bf79863 KW |
2945 | sv_utf8_upgrade_flags_grow(sv, |
2946 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
2947 | UNISKIP(uv) + (STRLEN)(send - s) + 1); | |
77a135fe KW |
2948 | d = SvPVX(sv) + SvCUR(sv); |
2949 | has_utf8 = TRUE; | |
012bcf8d GS |
2950 | } |
2951 | ||
77a135fe KW |
2952 | if (has_utf8) { |
2953 | d = (char*)uvuni_to_utf8((U8*)d, uv); | |
f9a63242 JH |
2954 | if (PL_lex_inwhat == OP_TRANS && |
2955 | PL_sublex_info.sub_op) { | |
2956 | PL_sublex_info.sub_op->op_private |= | |
2957 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2958 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2959 | } |
e294cc5d JH |
2960 | #ifdef EBCDIC |
2961 | if (uv > 255 && !dorange) | |
2962 | native_range = FALSE; | |
2963 | #endif | |
012bcf8d | 2964 | } |
a0ed51b3 | 2965 | else { |
012bcf8d | 2966 | *d++ = (char)uv; |
a0ed51b3 | 2967 | } |
012bcf8d GS |
2968 | } |
2969 | else { | |
c4d5f83a | 2970 | *d++ = (char) uv; |
a0ed51b3 | 2971 | } |
79072805 | 2972 | continue; |
02aa26ce | 2973 | |
4a2d328f | 2974 | case 'N': |
ff3f963a KW |
2975 | /* In a non-pattern \N must be a named character, like \N{LATIN |
2976 | * SMALL LETTER A} or \N{U+0041}. For patterns, it also can | |
2977 | * mean to match a non-newline. For non-patterns, named | |
2978 | * characters are converted to their string equivalents. In | |
2979 | * patterns, named characters are not converted to their | |
2980 | * ultimate forms for the same reasons that other escapes | |
2981 | * aren't. Instead, they are converted to the \N{U+...} form | |
2982 | * to get the value from the charnames that is in effect right | |
2983 | * now, while preserving the fact that it was a named character | |
2984 | * so that the regex compiler knows this */ | |
2985 | ||
2986 | /* This section of code doesn't generally use the | |
2987 | * NATIVE_TO_NEED() macro to transform the input. I (khw) did | |
2988 | * a close examination of this macro and determined it is a | |
2989 | * no-op except on utfebcdic variant characters. Every | |
2990 | * character generated by this that would normally need to be | |
2991 | * enclosed by this macro is invariant, so the macro is not | |
2992 | * needed, and would complicate use of copy(). There are other | |
2993 | * parts of this file where the macro is used inconsistently, | |
2994 | * but are saved by it being a no-op */ | |
2995 | ||
2996 | /* The structure of this section of code (besides checking for | |
2997 | * errors and upgrading to utf8) is: | |
2998 | * Further disambiguate between the two meanings of \N, and if | |
2999 | * not a charname, go process it elsewhere | |
0a96133f KW |
3000 | * If of form \N{U+...}, pass it through if a pattern; |
3001 | * otherwise convert to utf8 | |
3002 | * Otherwise must be \N{NAME}: convert to \N{U+c1.c2...} if a | |
3003 | * pattern; otherwise convert to utf8 */ | |
ff3f963a KW |
3004 | |
3005 | /* Here, s points to the 'N'; the test below is guaranteed to | |
3006 | * succeed if we are being called on a pattern as we already | |
3007 | * know from a test above that the next character is a '{'. | |
3008 | * On a non-pattern \N must mean 'named sequence, which | |
3009 | * requires braces */ | |
3010 | s++; | |
3011 | if (*s != '{') { | |
3012 | yyerror("Missing braces on \\N{}"); | |
3013 | continue; | |
3014 | } | |
3015 | s++; | |
3016 | ||
0a96133f | 3017 | /* If there is no matching '}', it is an error. */ |
ff3f963a KW |
3018 | if (! (e = strchr(s, '}'))) { |
3019 | if (! PL_lex_inpat) { | |
5777a3f7 | 3020 | yyerror("Missing right brace on \\N{}"); |
0a96133f KW |
3021 | } else { |
3022 | yyerror("Missing right brace on \\N{} or unescaped left brace after \\N."); | |
dbc0d4f2 | 3023 | } |
0a96133f | 3024 | continue; |
ff3f963a | 3025 | } |
cddc7ef4 | 3026 | |
ff3f963a | 3027 | /* Here it looks like a named character */ |
cddc7ef4 | 3028 | |
ff3f963a KW |
3029 | if (PL_lex_inpat) { |
3030 | ||
3031 | /* XXX This block is temporary code. \N{} implies that the | |
3032 | * pattern is to have Unicode semantics, and therefore | |
3033 | * currently has to be encoded in utf8. By putting it in | |
3034 | * utf8 now, we save a whole pass in the regular expression | |
3035 | * compiler. Once that code is changed so Unicode | |
3036 | * semantics doesn't necessarily have to be in utf8, this | |
3037 | * block should be removed */ | |
3038 | if (!has_utf8) { | |
77a135fe | 3039 | SvCUR_set(sv, d - SvPVX_const(sv)); |
f08d6ad9 | 3040 | SvPOK_on(sv); |
e4f3eed8 | 3041 | *d = '\0'; |
77a135fe | 3042 | /* See Note on sizing above. */ |
7bf79863 | 3043 | sv_utf8_upgrade_flags_grow(sv, |
ff3f963a KW |
3044 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, |
3045 | /* 5 = '\N{' + cur char + NUL */ | |
3046 | (STRLEN)(send - s) + 5); | |
f08d6ad9 | 3047 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 3048 | has_utf8 = TRUE; |
ff3f963a KW |
3049 | } |
3050 | } | |
423cee85 | 3051 | |
ff3f963a KW |
3052 | if (*s == 'U' && s[1] == '+') { /* \N{U+...} */ |
3053 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
3054 | | PERL_SCAN_DISALLOW_PREFIX; | |
3055 | STRLEN len; | |
3056 | ||
3057 | /* For \N{U+...}, the '...' is a unicode value even on | |
3058 | * EBCDIC machines */ | |
3059 | s += 2; /* Skip to next char after the 'U+' */ | |
3060 | len = e - s; | |
3061 | uv = grok_hex(s, &len, &flags, NULL); | |
3062 | if (len == 0 || len != (STRLEN)(e - s)) { | |
3063 | yyerror("Invalid hexadecimal number in \\N{U+...}"); | |
3064 | s = e + 1; | |
3065 | continue; | |
3066 | } | |
3067 | ||
3068 | if (PL_lex_inpat) { | |
3069 | ||
3070 | /* Pass through to the regex compiler unchanged. The | |
3071 | * reason we evaluated the number above is to make sure | |
0a96133f | 3072 | * there wasn't a syntax error. */ |
ff3f963a KW |
3073 | s -= 5; /* Include the '\N{U+' */ |
3074 | Copy(s, d, e - s + 1, char); /* 1 = include the } */ | |
3075 | d += e - s + 1; | |
3076 | } | |
3077 | else { /* Not a pattern: convert the hex to string */ | |
3078 | ||
3079 | /* If destination is not in utf8, unconditionally | |
3080 | * recode it to be so. This is because \N{} implies | |
3081 | * Unicode semantics, and scalars have to be in utf8 | |
3082 | * to guarantee those semantics */ | |
3083 | if (! has_utf8) { | |
3084 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3085 | SvPOK_on(sv); | |
3086 | *d = '\0'; | |
3087 | /* See Note on sizing above. */ | |
3088 | sv_utf8_upgrade_flags_grow( | |
3089 | sv, | |
3090 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3091 | UNISKIP(uv) + (STRLEN)(send - e) + 1); | |
3092 | d = SvPVX(sv) + SvCUR(sv); | |
3093 | has_utf8 = TRUE; | |
3094 | } | |
3095 | ||
3096 | /* Add the string to the output */ | |
3097 | if (UNI_IS_INVARIANT(uv)) { | |
3098 | *d++ = (char) uv; | |
3099 | } | |
3100 | else d = (char*)uvuni_to_utf8((U8*)d, uv); | |
3101 | } | |
3102 | } | |
3103 | else { /* Here is \N{NAME} but not \N{U+...}. */ | |
3104 | ||
3105 | SV *res; /* result from charnames */ | |
3106 | const char *str; /* the string in 'res' */ | |
3107 | STRLEN len; /* its length */ | |
3108 | ||
3109 | /* Get the value for NAME */ | |
3110 | res = newSVpvn(s, e - s); | |
3111 | res = new_constant( NULL, 0, "charnames", | |
3112 | /* includes all of: \N{...} */ | |
3113 | res, NULL, s - 3, e - s + 4 ); | |
3114 | ||
3115 | /* Most likely res will be in utf8 already since the | |
3116 | * standard charnames uses pack U, but a custom translator | |
3117 | * can leave it otherwise, so make sure. XXX This can be | |
3118 | * revisited to not have charnames use utf8 for characters | |
3119 | * that don't need it when regexes don't have to be in utf8 | |
3120 | * for Unicode semantics. If doing so, remember EBCDIC */ | |
3121 | sv_utf8_upgrade(res); | |
3122 | str = SvPV_const(res, len); | |
3123 | ||
3124 | /* Don't accept malformed input */ | |
3125 | if (! is_utf8_string((U8 *) str, len)) { | |
3126 | yyerror("Malformed UTF-8 returned by \\N"); | |
3127 | } | |
3128 | else if (PL_lex_inpat) { | |
3129 | ||
3130 | if (! len) { /* The name resolved to an empty string */ | |
3131 | Copy("\\N{}", d, 4, char); | |
3132 | d += 4; | |
3133 | } | |
3134 | else { | |
3135 | /* In order to not lose information for the regex | |
3136 | * compiler, pass the result in the specially made | |
3137 | * syntax: \N{U+c1.c2.c3...}, where c1 etc. are | |
3138 | * the code points in hex of each character | |
3139 | * returned by charnames */ | |
3140 | ||
3141 | const char *str_end = str + len; | |
3142 | STRLEN char_length; /* cur char's byte length */ | |
3143 | STRLEN output_length; /* and the number of bytes | |
3144 | after this is translated | |
3145 | into hex digits */ | |
3146 | const STRLEN off = d - SvPVX_const(sv); | |
3147 | ||
3148 | /* 2 hex per byte; 2 chars for '\N'; 2 chars for | |
3149 | * max('U+', '.'); and 1 for NUL */ | |
3150 | char hex_string[2 * UTF8_MAXBYTES + 5]; | |
3151 | ||
3152 | /* Get the first character of the result. */ | |
3153 | U32 uv = utf8n_to_uvuni((U8 *) str, | |
3154 | len, | |
3155 | &char_length, | |
3156 | UTF8_ALLOW_ANYUV); | |
3157 | ||
3158 | /* The call to is_utf8_string() above hopefully | |
3159 | * guarantees that there won't be an error. But | |
3160 | * it's easy here to make sure. The function just | |
3161 | * above warns and returns 0 if invalid utf8, but | |
3162 | * it can also return 0 if the input is validly a | |
3163 | * NUL. Disambiguate */ | |
3164 | if (uv == 0 && NATIVE_TO_ASCII(*str) != '\0') { | |
3165 | uv = UNICODE_REPLACEMENT; | |
3166 | } | |
3167 | ||
3168 | /* Convert first code point to hex, including the | |
3169 | * boiler plate before it */ | |
3170 | sprintf(hex_string, "\\N{U+%X", (unsigned int) uv); | |
3171 | output_length = strlen(hex_string); | |
3172 | ||
3173 | /* Make sure there is enough space to hold it */ | |
3174 | d = off + SvGROW(sv, off | |
3175 | + output_length | |
3176 | + (STRLEN)(send - e) | |
3177 | + 2); /* '}' + NUL */ | |
3178 | /* And output it */ | |
3179 | Copy(hex_string, d, output_length, char); | |
3180 | d += output_length; | |
3181 | ||
3182 | /* For each subsequent character, append dot and | |
3183 | * its ordinal in hex */ | |
3184 | while ((str += char_length) < str_end) { | |
3185 | const STRLEN off = d - SvPVX_const(sv); | |
3186 | U32 uv = utf8n_to_uvuni((U8 *) str, | |
3187 | str_end - str, | |
3188 | &char_length, | |
3189 | UTF8_ALLOW_ANYUV); | |
3190 | if (uv == 0 && NATIVE_TO_ASCII(*str) != '\0') { | |
3191 | uv = UNICODE_REPLACEMENT; | |
3192 | } | |
3193 | ||
3194 | sprintf(hex_string, ".%X", (unsigned int) uv); | |
3195 | output_length = strlen(hex_string); | |
3196 | ||
3197 | d = off + SvGROW(sv, off | |
3198 | + output_length | |
3199 | + (STRLEN)(send - e) | |
3200 | + 2); /* '}' + NUL */ | |
3201 | Copy(hex_string, d, output_length, char); | |
3202 | d += output_length; | |
3203 | } | |
3204 | ||
3205 | *d++ = '}'; /* Done. Add the trailing brace */ | |
3206 | } | |
3207 | } | |
3208 | else { /* Here, not in a pattern. Convert the name to a | |
3209 | * string. */ | |
3210 | ||
3211 | /* If destination is not in utf8, unconditionally | |
3212 | * recode it to be so. This is because \N{} implies | |
3213 | * Unicode semantics, and scalars have to be in utf8 | |
3214 | * to guarantee those semantics */ | |
3215 | if (! has_utf8) { | |
3216 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3217 | SvPOK_on(sv); | |
3218 | *d = '\0'; | |
3219 | /* See Note on sizing above. */ | |
3220 | sv_utf8_upgrade_flags_grow(sv, | |
3221 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3222 | len + (STRLEN)(send - s) + 1); | |
3223 | d = SvPVX(sv) + SvCUR(sv); | |
3224 | has_utf8 = TRUE; | |
3225 | } else if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ | |
3226 | ||
3227 | /* See Note on sizing above. (NOTE: SvCUR() is not | |
3228 | * set correctly here). */ | |
3229 | const STRLEN off = d - SvPVX_const(sv); | |
3230 | d = off + SvGROW(sv, off + len + (STRLEN)(send - s) + 1); | |
3231 | } | |
3232 | Copy(str, d, len, char); | |
3233 | d += len; | |
423cee85 | 3234 | } |
423cee85 | 3235 | SvREFCNT_dec(res); |
cb233ae3 KW |
3236 | |
3237 | /* Deprecate non-approved name syntax */ | |
3238 | if (ckWARN_d(WARN_DEPRECATED)) { | |
3239 | bool problematic = FALSE; | |
3240 | char* i = s; | |
3241 | ||
3242 | /* For non-ut8 input, look to see that the first | |
3243 | * character is an alpha, then loop through the rest | |
3244 | * checking that each is a continuation */ | |
3245 | if (! this_utf8) { | |
3246 | if (! isALPHAU(*i)) problematic = TRUE; | |
3247 | else for (i = s + 1; i < e; i++) { | |
3248 | if (isCHARNAME_CONT(*i)) continue; | |
3249 | problematic = TRUE; | |
3250 | break; | |
3251 | } | |
3252 | } | |
3253 | else { | |
3254 | /* Similarly for utf8. For invariants can check | |
3255 | * directly. We accept anything above the latin1 | |
3256 | * range because it is immaterial to Perl if it is | |
3257 | * correct or not, and is expensive to check. But | |
3258 | * it is fairly easy in the latin1 range to convert | |
3259 | * the variants into a single character and check | |
3260 | * those */ | |
3261 | if (UTF8_IS_INVARIANT(*i)) { | |
3262 | if (! isALPHAU(*i)) problematic = TRUE; | |
3263 | } else if (UTF8_IS_DOWNGRADEABLE_START(*i)) { | |
3264 | if (! isALPHAU(UNI_TO_NATIVE(UTF8_ACCUMULATE(*i, | |
3265 | *(i+1))))) | |
3266 | { | |
3267 | problematic = TRUE; | |
3268 | } | |
3269 | } | |
3270 | if (! problematic) for (i = s + UTF8SKIP(s); | |
3271 | i < e; | |
3272 | i+= UTF8SKIP(i)) | |
3273 | { | |
3274 | if (UTF8_IS_INVARIANT(*i)) { | |
3275 | if (isCHARNAME_CONT(*i)) continue; | |
3276 | } else if (! UTF8_IS_DOWNGRADEABLE_START(*i)) { | |
3277 | continue; | |
3278 | } else if (isCHARNAME_CONT( | |
3279 | UNI_TO_NATIVE( | |
3280 | UTF8_ACCUMULATE(*i, *(i+1))))) | |
3281 | { | |
3282 | continue; | |
3283 | } | |
3284 | problematic = TRUE; | |
3285 | break; | |
3286 | } | |
3287 | } | |
3288 | if (problematic) { | |
6e1bad6c KW |
3289 | /* The e-i passed to the final %.*s makes sure that |
3290 | * should the trailing NUL be missing that this | |
3291 | * print won't run off the end of the string */ | |
cb233ae3 | 3292 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), |
b00fc8d4 NC |
3293 | "Deprecated character in \\N{...}; marked by <-- HERE in \\N{%.*s<-- HERE %.*s", |
3294 | (int)(i - s + 1), s, (int)(e - i), i + 1); | |
cb233ae3 KW |
3295 | } |
3296 | } | |
3297 | } /* End \N{NAME} */ | |
ff3f963a KW |
3298 | #ifdef EBCDIC |
3299 | if (!dorange) | |
3300 | native_range = FALSE; /* \N{} is defined to be Unicode */ | |
3301 | #endif | |
3302 | s = e + 1; /* Point to just after the '}' */ | |
423cee85 JH |
3303 | continue; |
3304 | ||
02aa26ce | 3305 | /* \c is a control character */ |
79072805 LW |
3306 | case 'c': |
3307 | s++; | |
961ce445 | 3308 | if (s < send) { |
f9d13529 | 3309 | *d++ = grok_bslash_c(*s++, 1); |
ba210ebe | 3310 | } |
961ce445 RGS |
3311 | else { |
3312 | yyerror("Missing control char name in \\c"); | |
3313 | } | |
79072805 | 3314 | continue; |
02aa26ce NT |
3315 | |
3316 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 3317 | case 'b': |
db42d148 | 3318 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
3319 | break; |
3320 | case 'n': | |
db42d148 | 3321 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
3322 | break; |
3323 | case 'r': | |
db42d148 | 3324 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
3325 | break; |
3326 | case 'f': | |
db42d148 | 3327 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
3328 | break; |
3329 | case 't': | |
db42d148 | 3330 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 3331 | break; |
34a3fe2a | 3332 | case 'e': |
db42d148 | 3333 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
3334 | break; |
3335 | case 'a': | |
db42d148 | 3336 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 3337 | break; |
02aa26ce NT |
3338 | } /* end switch */ |
3339 | ||
79072805 LW |
3340 | s++; |
3341 | continue; | |
02aa26ce | 3342 | } /* end if (backslash) */ |
4c3a8340 TS |
3343 | #ifdef EBCDIC |
3344 | else | |
3345 | literal_endpoint++; | |
3346 | #endif | |
02aa26ce | 3347 | |
f9a63242 | 3348 | default_action: |
77a135fe KW |
3349 | /* If we started with encoded form, or already know we want it, |
3350 | then encode the next character */ | |
3351 | if (! NATIVE_IS_INVARIANT((U8)(*s)) && (this_utf8 || has_utf8)) { | |
2b9d42f0 | 3352 | STRLEN len = 1; |
77a135fe KW |
3353 | |
3354 | ||
3355 | /* One might think that it is wasted effort in the case of the | |
3356 | * source being utf8 (this_utf8 == TRUE) to take the next character | |
3357 | * in the source, convert it to an unsigned value, and then convert | |
3358 | * it back again. But the source has not been validated here. The | |
3359 | * routine that does the conversion checks for errors like | |
3360 | * malformed utf8 */ | |
3361 | ||
5f66b61c AL |
3362 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
3363 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
77a135fe KW |
3364 | if (!has_utf8) { |
3365 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3366 | SvPOK_on(sv); | |
3367 | *d = '\0'; | |
77a135fe | 3368 | /* See Note on sizing above. */ |
7bf79863 KW |
3369 | sv_utf8_upgrade_flags_grow(sv, |
3370 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3371 | need + (STRLEN)(send - s) + 1); | |
77a135fe KW |
3372 | d = SvPVX(sv) + SvCUR(sv); |
3373 | has_utf8 = TRUE; | |
3374 | } else if (need > len) { | |
3375 | /* encoded value larger than old, may need extra space (NOTE: | |
3376 | * SvCUR() is not set correctly here). See Note on sizing | |
3377 | * above. */ | |
9d4ba2ae | 3378 | const STRLEN off = d - SvPVX_const(sv); |
77a135fe | 3379 | d = SvGROW(sv, off + need + (STRLEN)(send - s) + 1) + off; |
2b9d42f0 | 3380 | } |
77a135fe KW |
3381 | s += len; |
3382 | ||
5f66b61c | 3383 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
e294cc5d JH |
3384 | #ifdef EBCDIC |
3385 | if (uv > 255 && !dorange) | |
3386 | native_range = FALSE; | |
3387 | #endif | |
2b9d42f0 NIS |
3388 | } |
3389 | else { | |
3390 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
3391 | } | |
02aa26ce NT |
3392 | } /* while loop to process each character */ |
3393 | ||
3394 | /* terminate the string and set up the sv */ | |
79072805 | 3395 | *d = '\0'; |
95a20fc0 | 3396 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 3397 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 3398 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 3399 | |
79072805 | 3400 | SvPOK_on(sv); |
9f4817db | 3401 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
3402 | sv_recode_to_utf8(sv, PL_encoding); |
3403 | if (SvUTF8(sv)) | |
3404 | has_utf8 = TRUE; | |
9f4817db | 3405 | } |
2b9d42f0 | 3406 | if (has_utf8) { |
7e2040f0 | 3407 | SvUTF8_on(sv); |
2b9d42f0 | 3408 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 3409 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
3410 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
3411 | } | |
3412 | } | |
79072805 | 3413 | |
02aa26ce | 3414 | /* shrink the sv if we allocated more than we used */ |
79072805 | 3415 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 3416 | SvPV_shrink_to_cur(sv); |
79072805 | 3417 | } |
02aa26ce | 3418 | |
6154021b | 3419 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 3420 | if (s > PL_bufptr) { |
eb0d8d16 NC |
3421 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
3422 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
3423 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
3424 | const char *type; | |
3425 | STRLEN typelen; | |
3426 | ||
3427 | if (PL_lex_inwhat == OP_TRANS) { | |
3428 | type = "tr"; | |
3429 | typelen = 2; | |
3430 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
3431 | type = "s"; | |
3432 | typelen = 1; | |
3433 | } else { | |
3434 | type = "qq"; | |
3435 | typelen = 2; | |
3436 | } | |
3437 | ||
3438 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
3439 | type, typelen); | |
3440 | } | |
6154021b | 3441 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 3442 | } else |
8990e307 | 3443 | SvREFCNT_dec(sv); |
79072805 LW |
3444 | return s; |
3445 | } | |
3446 | ||
ffb4593c NT |
3447 | /* S_intuit_more |
3448 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
3449 | * FALSE otherwise. | |
ffb4593c NT |
3450 | * |
3451 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
3452 | * | |
3453 | * ->[ and ->{ return TRUE | |
3454 | * { and [ outside a pattern are always subscripts, so return TRUE | |
3455 | * if we're outside a pattern and it's not { or [, then return FALSE | |
3456 | * if we're in a pattern and the first char is a { | |
3457 | * {4,5} (any digits around the comma) returns FALSE | |
3458 | * if we're in a pattern and the first char is a [ | |
3459 | * [] returns FALSE | |
3460 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
3461 | * character class or not. It has to deal with things like | |
3462 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
3463 | * anything else returns TRUE | |
3464 | */ | |
3465 | ||
9cbb5ea2 GS |
3466 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
3467 | ||
76e3520e | 3468 | STATIC int |
cea2e8a9 | 3469 | S_intuit_more(pTHX_ register char *s) |
79072805 | 3470 | { |
97aff369 | 3471 | dVAR; |
7918f24d NC |
3472 | |
3473 | PERL_ARGS_ASSERT_INTUIT_MORE; | |
3474 | ||
3280af22 | 3475 | if (PL_lex_brackets) |
79072805 LW |
3476 | return TRUE; |
3477 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
3478 | return TRUE; | |
3479 | if (*s != '{' && *s != '[') | |
3480 | return FALSE; | |
3280af22 | 3481 | if (!PL_lex_inpat) |
79072805 LW |
3482 | return TRUE; |
3483 | ||
3484 | /* In a pattern, so maybe we have {n,m}. */ | |
3485 | if (*s == '{') { | |
3486 | s++; | |
3487 | if (!isDIGIT(*s)) | |
3488 | return TRUE; | |
3489 | while (isDIGIT(*s)) | |
3490 | s++; | |
3491 | if (*s == ',') | |
3492 | s++; | |
3493 | while (isDIGIT(*s)) | |
3494 | s++; | |
3495 | if (*s == '}') | |
3496 | return FALSE; | |
3497 | return TRUE; | |
3498 | ||
3499 | } | |
3500 | ||
3501 | /* On the other hand, maybe we have a character class */ | |
3502 | ||
3503 | s++; | |
3504 | if (*s == ']' || *s == '^') | |
3505 | return FALSE; | |
3506 | else { | |
ffb4593c | 3507 | /* this is terrifying, and it works */ |
79072805 LW |
3508 | int weight = 2; /* let's weigh the evidence */ |
3509 | char seen[256]; | |
f27ffc4a | 3510 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 3511 | const char * const send = strchr(s,']'); |
3280af22 | 3512 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
3513 | |
3514 | if (!send) /* has to be an expression */ | |
3515 | return TRUE; | |
3516 | ||
3517 | Zero(seen,256,char); | |
3518 | if (*s == '$') | |
3519 | weight -= 3; | |
3520 | else if (isDIGIT(*s)) { | |
3521 | if (s[1] != ']') { | |
3522 | if (isDIGIT(s[1]) && s[2] == ']') | |
3523 | weight -= 10; | |
3524 | } | |
3525 | else | |
3526 | weight -= 100; | |
3527 | } | |
3528 | for (; s < send; s++) { | |
3529 | last_un_char = un_char; | |
3530 | un_char = (unsigned char)*s; | |
3531 | switch (*s) { | |
3532 | case '@': | |
3533 | case '&': | |
3534 | case '$': | |
3535 | weight -= seen[un_char] * 10; | |
7e2040f0 | 3536 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 3537 | int len; |
8903cb82 | 3538 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
3539 | len = (int)strlen(tmpbuf); |
3540 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
3541 | weight -= 100; |
3542 | else | |
3543 | weight -= 10; | |
3544 | } | |
3545 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
3546 | strchr("[#!%*<>()-=",s[1])) { |
3547 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
3548 | weight -= 10; |
3549 | else | |
3550 | weight -= 1; | |
3551 | } | |
3552 | break; | |
3553 | case '\\': | |
3554 | un_char = 254; | |
3555 | if (s[1]) { | |
93a17b20 | 3556 | if (strchr("wds]",s[1])) |
79072805 | 3557 | weight += 100; |
10edeb5d | 3558 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 3559 | weight += 1; |
93a17b20 | 3560 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
3561 | weight += 40; |
3562 | else if (isDIGIT(s[1])) { | |
3563 | weight += 40; | |
3564 | while (s[1] && isDIGIT(s[1])) | |
3565 | s++; | |
3566 | } | |
3567 | } | |
3568 | else | |
3569 | weight += 100; | |
3570 | break; | |
3571 | case '-': | |
3572 | if (s[1] == '\\') | |
3573 | weight += 50; | |
93a17b20 | 3574 | if (strchr("aA01! ",last_un_char)) |
79072805 | 3575 | weight += 30; |
93a17b20 | 3576 | if (strchr("zZ79~",s[1])) |
79072805 | 3577 | weight += 30; |
f27ffc4a GS |
3578 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
3579 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
3580 | break; |
3581 | default: | |
3792a11b NC |
3582 | if (!isALNUM(last_un_char) |
3583 | && !(last_un_char == '$' || last_un_char == '@' | |
3584 | || last_un_char == '&') | |
3585 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
3586 | char *d = tmpbuf; |
3587 | while (isALPHA(*s)) | |
3588 | *d++ = *s++; | |
3589 | *d = '\0'; | |
5458a98a | 3590 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
3591 | weight -= 150; |
3592 | } | |
3593 | if (un_char == last_un_char + 1) | |
3594 | weight += 5; | |
3595 | weight -= seen[un_char]; | |
3596 | break; | |
3597 | } | |
3598 | seen[un_char]++; | |
3599 | } | |
3600 | if (weight >= 0) /* probably a character class */ | |
3601 | return FALSE; | |
3602 | } | |
3603 | ||
3604 | return TRUE; | |
3605 | } | |
ffed7fef | 3606 | |
ffb4593c NT |
3607 | /* |
3608 | * S_intuit_method | |
3609 | * | |
3610 | * Does all the checking to disambiguate | |
3611 | * foo bar | |
3612 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
3613 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
3614 | * | |
3615 | * First argument is the stuff after the first token, e.g. "bar". | |
3616 | * | |
3617 | * Not a method if bar is a filehandle. | |
3618 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
3619 | * Not a method if it's really "Foo $bar" | |
3620 | * Method if it's "foo $bar" | |
3621 | * Not a method if it's really "print foo $bar" | |
3622 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 3623 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 3624 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
3625 | * => |
3626 | */ | |
3627 | ||
76e3520e | 3628 | STATIC int |
62d55b22 | 3629 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 3630 | { |
97aff369 | 3631 | dVAR; |
a0d0e21e | 3632 | char *s = start + (*start == '$'); |
3280af22 | 3633 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
3634 | STRLEN len; |
3635 | GV* indirgv; | |
5db06880 NC |
3636 | #ifdef PERL_MAD |
3637 | int soff; | |
3638 | #endif | |
a0d0e21e | 3639 | |
7918f24d NC |
3640 | PERL_ARGS_ASSERT_INTUIT_METHOD; |
3641 | ||
a0d0e21e | 3642 | if (gv) { |
62d55b22 | 3643 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 3644 | return 0; |
62d55b22 NC |
3645 | if (cv) { |
3646 | if (SvPOK(cv)) { | |
3647 | const char *proto = SvPVX_const(cv); | |
3648 | if (proto) { | |
3649 | if (*proto == ';') | |
3650 | proto++; | |
3651 | if (*proto == '*') | |
3652 | return 0; | |
3653 | } | |
b6c543e3 IZ |
3654 | } |
3655 | } else | |
c35e046a | 3656 | gv = NULL; |
a0d0e21e | 3657 | } |
8903cb82 | 3658 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
3659 | /* start is the beginning of the possible filehandle/object, |
3660 | * and s is the end of it | |
3661 | * tmpbuf is a copy of it | |
3662 | */ | |
3663 | ||
a0d0e21e | 3664 | if (*start == '$') { |
3ef1310e RGS |
3665 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
3666 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 3667 | return 0; |
5db06880 NC |
3668 | #ifdef PERL_MAD |
3669 | len = start - SvPVX(PL_linestr); | |
3670 | #endif | |
29595ff2 | 3671 | s = PEEKSPACE(s); |
f0092767 | 3672 | #ifdef PERL_MAD |
5db06880 NC |
3673 | start = SvPVX(PL_linestr) + len; |
3674 | #endif | |
3280af22 NIS |
3675 | PL_bufptr = start; |
3676 | PL_expect = XREF; | |
a0d0e21e LW |
3677 | return *s == '(' ? FUNCMETH : METHOD; |
3678 | } | |
5458a98a | 3679 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
3680 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
3681 | len -= 2; | |
3682 | tmpbuf[len] = '\0'; | |
5db06880 NC |
3683 | #ifdef PERL_MAD |
3684 | soff = s - SvPVX(PL_linestr); | |
3685 | #endif | |
c3e0f903 GS |
3686 | goto bare_package; |
3687 | } | |
90e5519e | 3688 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 3689 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
3690 | return 0; |
3691 | /* filehandle or package name makes it a method */ | |
da51bb9b | 3692 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
3693 | #ifdef PERL_MAD |
3694 | soff = s - SvPVX(PL_linestr); | |
3695 | #endif | |
29595ff2 | 3696 | s = PEEKSPACE(s); |
3280af22 | 3697 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 3698 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 3699 | bare_package: |
cd81e915 | 3700 | start_force(PL_curforce); |
9ded7720 | 3701 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
64142370 | 3702 | S_newSV_maybe_utf8(aTHX_ tmpbuf, len)); |
9ded7720 | 3703 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
3704 | if (PL_madskills) |
3705 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 3706 | PL_expect = XTERM; |
a0d0e21e | 3707 | force_next(WORD); |
3280af22 | 3708 | PL_bufptr = s; |
5db06880 NC |
3709 | #ifdef PERL_MAD |
3710 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
3711 | #endif | |
a0d0e21e LW |
3712 | return *s == '(' ? FUNCMETH : METHOD; |
3713 | } | |
3714 | } | |
3715 | return 0; | |
3716 | } | |
3717 | ||
16d20bd9 | 3718 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 3719 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
3720 | * Note that the filter function only applies to the current source file |
3721 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
3722 | * | |
3723 | * The datasv parameter (which may be NULL) can be used to pass | |
3724 | * private data to this instance of the filter. The filter function | |
3725 | * can recover the SV using the FILTER_DATA macro and use it to | |
3726 | * store private buffers and state information. | |
3727 | * | |
3728 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 3729 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 3730 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
3731 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
3732 | * private use must be set using malloc'd pointers. | |
3733 | */ | |
16d20bd9 AD |
3734 | |
3735 | SV * | |
864dbfa3 | 3736 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 3737 | { |
97aff369 | 3738 | dVAR; |
f4c556ac | 3739 | if (!funcp) |
a0714e2c | 3740 | return NULL; |
f4c556ac | 3741 | |
5486870f DM |
3742 | if (!PL_parser) |
3743 | return NULL; | |
3744 | ||
3280af22 NIS |
3745 | if (!PL_rsfp_filters) |
3746 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 3747 | if (!datasv) |
561b68a9 | 3748 | datasv = newSV(0); |
862a34c6 | 3749 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 3750 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 3751 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 3752 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
3753 | FPTR2DPTR(void *, IoANY(datasv)), |
3754 | SvPV_nolen(datasv))); | |
3280af22 NIS |
3755 | av_unshift(PL_rsfp_filters, 1); |
3756 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
3757 | return(datasv); |
3758 | } | |
4e553d73 | 3759 | |
16d20bd9 AD |
3760 | |
3761 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 3762 | void |
864dbfa3 | 3763 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 3764 | { |
97aff369 | 3765 | dVAR; |
e0c19803 | 3766 | SV *datasv; |
24801a4b | 3767 | |
7918f24d NC |
3768 | PERL_ARGS_ASSERT_FILTER_DEL; |
3769 | ||
33073adb | 3770 | #ifdef DEBUGGING |
55662e27 JH |
3771 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
3772 | FPTR2DPTR(void*, funcp))); | |
33073adb | 3773 | #endif |
5486870f | 3774 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
3775 | return; |
3776 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 3777 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 3778 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
3280af22 | 3779 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 3780 | |
16d20bd9 AD |
3781 | return; |
3782 | } | |
3783 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 3784 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
3785 | } |
3786 | ||
3787 | ||
1de9afcd RGS |
3788 | /* Invoke the idxth filter function for the current rsfp. */ |
3789 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 3790 | I32 |
864dbfa3 | 3791 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 3792 | { |
97aff369 | 3793 | dVAR; |
16d20bd9 AD |
3794 | filter_t funcp; |
3795 | SV *datasv = NULL; | |
f482118e NC |
3796 | /* This API is bad. It should have been using unsigned int for maxlen. |
3797 | Not sure if we want to change the API, but if not we should sanity | |
3798 | check the value here. */ | |
39cd7a59 NC |
3799 | const unsigned int correct_length |
3800 | = maxlen < 0 ? | |
3801 | #ifdef PERL_MICRO | |
3802 | 0x7FFFFFFF | |
3803 | #else | |
3804 | INT_MAX | |
3805 | #endif | |
3806 | : maxlen; | |
e50aee73 | 3807 | |
7918f24d NC |
3808 | PERL_ARGS_ASSERT_FILTER_READ; |
3809 | ||
5486870f | 3810 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 3811 | return -1; |
1de9afcd | 3812 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
3813 | /* Provide a default input filter to make life easy. */ |
3814 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
3815 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3816 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 3817 | if (correct_length) { |
16d20bd9 AD |
3818 | /* Want a block */ |
3819 | int len ; | |
f54cb97a | 3820 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
3821 | |
3822 | /* ensure buf_sv is large enough */ | |
881d8f0a | 3823 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length + 1)) ; |
f482118e NC |
3824 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, |
3825 | correct_length)) <= 0) { | |
3280af22 | 3826 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
3827 | return -1; /* error */ |
3828 | else | |
3829 | return 0 ; /* end of file */ | |
3830 | } | |
16d20bd9 | 3831 | SvCUR_set(buf_sv, old_len + len) ; |
881d8f0a | 3832 | SvPVX(buf_sv)[old_len + len] = '\0'; |
16d20bd9 AD |
3833 | } else { |
3834 | /* Want a line */ | |
3280af22 NIS |
3835 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
3836 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
3837 | return -1; /* error */ |
3838 | else | |
3839 | return 0 ; /* end of file */ | |
3840 | } | |
16d20bd9 AD |
3841 | } |
3842 | return SvCUR(buf_sv); | |
3843 | } | |
3844 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 3845 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
3846 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3847 | "filter_read %d: skipped (filter deleted)\n", | |
3848 | idx)); | |
f482118e | 3849 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
3850 | } |
3851 | /* Get function pointer hidden within datasv */ | |
8141890a | 3852 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
3853 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3854 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 3855 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
3856 | /* Call function. The function is expected to */ |
3857 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 3858 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 3859 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
3860 | } |
3861 | ||
76e3520e | 3862 | STATIC char * |
5cc814fd | 3863 | S_filter_gets(pTHX_ register SV *sv, STRLEN append) |
16d20bd9 | 3864 | { |
97aff369 | 3865 | dVAR; |
7918f24d NC |
3866 | |
3867 | PERL_ARGS_ASSERT_FILTER_GETS; | |
3868 | ||
c39cd008 | 3869 | #ifdef PERL_CR_FILTER |
3280af22 | 3870 | if (!PL_rsfp_filters) { |
c39cd008 | 3871 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
3872 | } |
3873 | #endif | |
3280af22 | 3874 | if (PL_rsfp_filters) { |
55497cff | 3875 | if (!append) |
3876 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
3877 | if (FILTER_READ(0, sv, 0) > 0) |
3878 | return ( SvPVX(sv) ) ; | |
3879 | else | |
bd61b366 | 3880 | return NULL ; |
16d20bd9 | 3881 | } |
9d116dd7 | 3882 | else |
5cc814fd | 3883 | return (sv_gets(sv, PL_rsfp, append)); |
a0d0e21e LW |
3884 | } |
3885 | ||
01ec43d0 | 3886 | STATIC HV * |
9bde8eb0 | 3887 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 3888 | { |
97aff369 | 3889 | dVAR; |
def3634b GS |
3890 | GV *gv; |
3891 | ||
7918f24d NC |
3892 | PERL_ARGS_ASSERT_FIND_IN_MY_STASH; |
3893 | ||
01ec43d0 | 3894 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
3895 | return PL_curstash; |
3896 | ||
3897 | if (len > 2 && | |
3898 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 3899 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
3900 | { |
3901 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
3902 | } |
3903 | ||
3904 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
3905 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
3906 | if (gv && GvCV(gv)) { | |
3907 | SV * const sv = cv_const_sv(GvCV(gv)); | |
3908 | if (sv) | |
9bde8eb0 | 3909 | pkgname = SvPV_const(sv, len); |
def3634b GS |
3910 | } |
3911 | ||
9bde8eb0 | 3912 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 3913 | } |
a0d0e21e | 3914 | |
e3f73d4e RGS |
3915 | /* |
3916 | * S_readpipe_override | |
3917 | * Check whether readpipe() is overriden, and generates the appropriate | |
3918 | * optree, provided sublex_start() is called afterwards. | |
3919 | */ | |
3920 | STATIC void | |
1d51329b | 3921 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
3922 | { |
3923 | GV **gvp; | |
3924 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 3925 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
3926 | if ((gv_readpipe |
3927 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
3928 | || | |
3929 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 3930 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
3931 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
3932 | { | |
3933 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3934 | append_elem(OP_LIST, | |
3935 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
3936 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
3937 | } | |
e3f73d4e RGS |
3938 | } |
3939 | ||
5db06880 NC |
3940 | #ifdef PERL_MAD |
3941 | /* | |
3942 | * Perl_madlex | |
3943 | * The intent of this yylex wrapper is to minimize the changes to the | |
3944 | * tokener when we aren't interested in collecting madprops. It remains | |
3945 | * to be seen how successful this strategy will be... | |
3946 | */ | |
3947 | ||
3948 | int | |
3949 | Perl_madlex(pTHX) | |
3950 | { | |
3951 | int optype; | |
3952 | char *s = PL_bufptr; | |
3953 | ||
cd81e915 NC |
3954 | /* make sure PL_thiswhite is initialized */ |
3955 | PL_thiswhite = 0; | |
3956 | PL_thismad = 0; | |
5db06880 | 3957 | |
cd81e915 | 3958 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
28ac2b49 | 3959 | if (PL_lex_state != LEX_KNOWNEXT && PL_pending_ident) |
5db06880 NC |
3960 | return S_pending_ident(aTHX); |
3961 | ||
3962 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3963 | if (!PL_lasttoke && PL_nextwhite) { |
3964 | PL_thiswhite = PL_nextwhite; | |
3965 | PL_nextwhite = 0; | |
5db06880 NC |
3966 | } |
3967 | ||
3968 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3969 | PL_realtokenstart = -1; |
3970 | PL_thistoken = 0; | |
5db06880 NC |
3971 | optype = yylex(); |
3972 | s = PL_bufptr; | |
cd81e915 | 3973 | assert(PL_curforce < 0); |
5db06880 | 3974 | |
cd81e915 NC |
3975 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3976 | if (!PL_thistoken) { | |
3977 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3978 | PL_thistoken = newSVpvs(""); |
5db06880 | 3979 | else { |
c35e046a | 3980 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3981 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3982 | } |
3983 | } | |
cd81e915 NC |
3984 | if (PL_thismad) /* install head */ |
3985 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3986 | } |
3987 | ||
3988 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3989 | if (optype == ')' && PL_endwhite) { |
3990 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3991 | } |
3992 | ||
cd81e915 | 3993 | if (!PL_thismad) { |
5db06880 NC |
3994 | |
3995 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3996 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3997 | sv_free(PL_thistoken); | |
3998 | PL_thistoken = 0; | |
5db06880 NC |
3999 | return 0; |
4000 | } | |
4001 | ||
4002 | /* put off final whitespace till peg */ | |
4003 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
4004 | PL_nextwhite = PL_thiswhite; |
4005 | PL_thiswhite = 0; | |
5db06880 | 4006 | } |
cd81e915 NC |
4007 | else if (PL_thisopen) { |
4008 | CURMAD('q', PL_thisopen); | |
4009 | if (PL_thistoken) | |
4010 | sv_free(PL_thistoken); | |
4011 | PL_thistoken = 0; | |
5db06880 NC |
4012 | } |
4013 | else { | |
4014 | /* Store actual token text as madprop X */ | |
cd81e915 | 4015 | CURMAD('X', PL_thistoken); |
5db06880 NC |
4016 | } |
4017 | ||
cd81e915 | 4018 | if (PL_thiswhite) { |
5db06880 | 4019 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 4020 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
4021 | } |
4022 | ||
cd81e915 | 4023 | if (PL_thisstuff) { |
5db06880 | 4024 | /* add quoted material as madprop = */ |
cd81e915 | 4025 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
4026 | } |
4027 | ||
cd81e915 | 4028 | if (PL_thisclose) { |
5db06880 | 4029 | /* add terminating quote as madprop Q */ |
cd81e915 | 4030 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
4031 | } |
4032 | } | |
4033 | ||
4034 | /* special processing based on optype */ | |
4035 | ||
4036 | switch (optype) { | |
4037 | ||
4038 | /* opval doesn't need a TOKEN since it can already store mp */ | |
4039 | case WORD: | |
4040 | case METHOD: | |
4041 | case FUNCMETH: | |
4042 | case THING: | |
4043 | case PMFUNC: | |
4044 | case PRIVATEREF: | |
4045 | case FUNC0SUB: | |
4046 | case UNIOPSUB: | |
4047 | case LSTOPSUB: | |
6154021b RGS |
4048 | if (pl_yylval.opval) |
4049 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 4050 | PL_thismad = 0; |
5db06880 NC |
4051 | return optype; |
4052 | ||
4053 | /* fake EOF */ | |
4054 | case 0: | |
4055 | optype = PEG; | |
cd81e915 NC |
4056 | if (PL_endwhite) { |
4057 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
4058 | PL_endwhite = 0; | |
5db06880 NC |
4059 | } |
4060 | break; | |
4061 | ||
4062 | case ']': | |
4063 | case '}': | |
cd81e915 | 4064 | if (PL_faketokens) |
5db06880 NC |
4065 | break; |
4066 | /* remember any fake bracket that lexer is about to discard */ | |
4067 | if (PL_lex_brackets == 1 && | |
4068 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
4069 | { | |
4070 | s = PL_bufptr; | |
4071 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
4072 | s++; | |
4073 | if (*s == '}') { | |
cd81e915 NC |
4074 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
4075 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
4076 | PL_thiswhite = 0; | |
5db06880 NC |
4077 | PL_bufptr = s - 1; |
4078 | break; /* don't bother looking for trailing comment */ | |
4079 | } | |
4080 | else | |
4081 | s = PL_bufptr; | |
4082 | } | |
4083 | if (optype == ']') | |
4084 | break; | |
4085 | /* FALLTHROUGH */ | |
4086 | ||
4087 | /* attach a trailing comment to its statement instead of next token */ | |
4088 | case ';': | |
cd81e915 | 4089 | if (PL_faketokens) |
5db06880 NC |
4090 | break; |
4091 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
4092 | s = PL_bufptr; | |
4093 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
4094 | s++; | |
4095 | if (*s == '\n' || *s == '#') { | |
4096 | while (s < PL_bufend && *s != '\n') | |
4097 | s++; | |
4098 | if (s < PL_bufend) | |
4099 | s++; | |
cd81e915 NC |
4100 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
4101 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
4102 | PL_thiswhite = 0; | |
5db06880 NC |
4103 | PL_bufptr = s; |
4104 | } | |
4105 | } | |
4106 | break; | |
4107 | ||
4108 | /* pval */ | |
4109 | case LABEL: | |
4110 | break; | |
4111 | ||
4112 | /* ival */ | |
4113 | default: | |
4114 | break; | |
4115 | ||
4116 | } | |
4117 | ||
4118 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 4119 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 4120 | PL_thismad = 0; |
5db06880 NC |
4121 | return optype; |
4122 | } | |
4123 | #endif | |
4124 | ||
468aa647 | 4125 | STATIC char * |
cc6ed77d | 4126 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 4127 | dVAR; |
7918f24d NC |
4128 | |
4129 | PERL_ARGS_ASSERT_TOKENIZE_USE; | |
4130 | ||
468aa647 RGS |
4131 | if (PL_expect != XSTATE) |
4132 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
4133 | is_use ? "use" : "no")); | |
29595ff2 | 4134 | s = SKIPSPACE1(s); |
468aa647 RGS |
4135 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
4136 | s = force_version(s, TRUE); | |
17c59fdf VP |
4137 | if (*s == ';' || *s == '}' |
4138 | || (s = SKIPSPACE1(s), (*s == ';' || *s == '}'))) { | |
cd81e915 | 4139 | start_force(PL_curforce); |
9ded7720 | 4140 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
4141 | force_next(WORD); |
4142 | } | |
4143 | else if (*s == 'v') { | |
4144 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
4145 | s = force_version(s, FALSE); | |
4146 | } | |
4147 | } | |
4148 | else { | |
4149 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
4150 | s = force_version(s, FALSE); | |
4151 | } | |
6154021b | 4152 | pl_yylval.ival = is_use; |
468aa647 RGS |
4153 | return s; |
4154 | } | |
748a9306 | 4155 | #ifdef DEBUGGING |
27da23d5 | 4156 | static const char* const exp_name[] = |
09bef843 | 4157 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 4158 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 4159 | }; |
748a9306 | 4160 | #endif |
463ee0b2 | 4161 | |
02aa26ce NT |
4162 | /* |
4163 | yylex | |
4164 | ||
4165 | Works out what to call the token just pulled out of the input | |
4166 | stream. The yacc parser takes care of taking the ops we return and | |
4167 | stitching them into a tree. | |
4168 | ||
4169 | Returns: | |
4170 | PRIVATEREF | |
4171 | ||
4172 | Structure: | |
4173 | if read an identifier | |
4174 | if we're in a my declaration | |
4175 | croak if they tried to say my($foo::bar) | |
4176 | build the ops for a my() declaration | |
4177 | if it's an access to a my() variable | |
4178 | are we in a sort block? | |
4179 | croak if my($a); $a <=> $b | |
4180 | build ops for access to a my() variable | |
4181 | if in a dq string, and they've said @foo and we can't find @foo | |
4182 | croak | |
4183 | build ops for a bareword | |
4184 | if we already built the token before, use it. | |
4185 | */ | |
4186 | ||
20141f0e | 4187 | |
dba4d153 JH |
4188 | #ifdef __SC__ |
4189 | #pragma segment Perl_yylex | |
4190 | #endif | |
dba4d153 | 4191 | int |
dba4d153 | 4192 | Perl_yylex(pTHX) |
20141f0e | 4193 | { |
97aff369 | 4194 | dVAR; |
3afc138a | 4195 | register char *s = PL_bufptr; |
378cc40b | 4196 | register char *d; |
463ee0b2 | 4197 | STRLEN len; |
aa7440fb | 4198 | bool bof = FALSE; |
580561a3 | 4199 | U32 fake_eof = 0; |
a687059c | 4200 | |
10edeb5d JH |
4201 | /* orig_keyword, gvp, and gv are initialized here because |
4202 | * jump to the label just_a_word_zero can bypass their | |
4203 | * initialization later. */ | |
4204 | I32 orig_keyword = 0; | |
4205 | GV *gv = NULL; | |
4206 | GV **gvp = NULL; | |
4207 | ||
bbf60fe6 | 4208 | DEBUG_T( { |
396482e1 | 4209 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
4210 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
4211 | (IV)CopLINE(PL_curcop), | |
4212 | lex_state_names[PL_lex_state], | |
4213 | exp_name[PL_expect], | |
4214 | pv_display(tmp, s, strlen(s), 0, 60)); | |
4215 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 4216 | } ); |
02aa26ce | 4217 | /* check if there's an identifier for us to look at */ |
28ac2b49 | 4218 | if (PL_lex_state != LEX_KNOWNEXT && PL_pending_ident) |
bbf60fe6 | 4219 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 4220 | |
02aa26ce NT |
4221 | /* no identifier pending identification */ |
4222 | ||
3280af22 | 4223 | switch (PL_lex_state) { |
79072805 LW |
4224 | #ifdef COMMENTARY |
4225 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
4226 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
4227 | break; | |
4228 | #endif | |
4229 | ||
09bef843 | 4230 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 4231 | case LEX_KNOWNEXT: |
5db06880 NC |
4232 | #ifdef PERL_MAD |
4233 | PL_lasttoke--; | |
6154021b | 4234 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 4235 | if (PL_madskills) { |
cd81e915 | 4236 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 4237 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 | 4238 | if (PL_thismad && PL_thismad->mad_key == '_') { |
daba3364 | 4239 | PL_thiswhite = MUTABLE_SV(PL_thismad->mad_val); |
cd81e915 NC |
4240 | PL_thismad->mad_val = 0; |
4241 | mad_free(PL_thismad); | |
4242 | PL_thismad = 0; | |
5db06880 NC |
4243 | } |
4244 | } | |
4245 | if (!PL_lasttoke) { | |
4246 | PL_lex_state = PL_lex_defer; | |
4247 | PL_expect = PL_lex_expect; | |
4248 | PL_lex_defer = LEX_NORMAL; | |
4249 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
4250 | return yylex(); | |
4251 | } | |
4252 | #else | |
3280af22 | 4253 | PL_nexttoke--; |
6154021b | 4254 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
4255 | if (!PL_nexttoke) { |
4256 | PL_lex_state = PL_lex_defer; | |
4257 | PL_expect = PL_lex_expect; | |
4258 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 4259 | } |
5db06880 NC |
4260 | #endif |
4261 | #ifdef PERL_MAD | |
4262 | /* FIXME - can these be merged? */ | |
4263 | return(PL_nexttoke[PL_lasttoke].next_type); | |
4264 | #else | |
bbf60fe6 | 4265 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 4266 | #endif |
79072805 | 4267 | |
02aa26ce | 4268 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 4269 | when we get here, PL_bufptr is at the \ |
02aa26ce | 4270 | */ |
79072805 LW |
4271 | case LEX_INTERPCASEMOD: |
4272 | #ifdef DEBUGGING | |
3280af22 | 4273 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 4274 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 4275 | #endif |
02aa26ce | 4276 | /* handle \E or end of string */ |
3280af22 | 4277 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 4278 | /* if at a \E */ |
3280af22 | 4279 | if (PL_lex_casemods) { |
f54cb97a | 4280 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 4281 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 4282 | |
3792a11b NC |
4283 | if (PL_bufptr != PL_bufend |
4284 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
4285 | PL_bufptr += 2; |
4286 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4287 | #ifdef PERL_MAD |
4288 | if (PL_madskills) | |
6b29d1f5 | 4289 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 4290 | #endif |
a0d0e21e | 4291 | } |
bbf60fe6 | 4292 | return REPORT(')'); |
79072805 | 4293 | } |
5db06880 NC |
4294 | #ifdef PERL_MAD |
4295 | while (PL_bufptr != PL_bufend && | |
4296 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 4297 | if (!PL_thiswhite) |
6b29d1f5 | 4298 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4299 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
4300 | PL_bufptr += 2; |
4301 | } | |
4302 | #else | |
3280af22 NIS |
4303 | if (PL_bufptr != PL_bufend) |
4304 | PL_bufptr += 2; | |
5db06880 | 4305 | #endif |
3280af22 | 4306 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 4307 | return yylex(); |
79072805 LW |
4308 | } |
4309 | else { | |
607df283 | 4310 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4311 | "### Saw case modifier\n"); }); |
3280af22 | 4312 | s = PL_bufptr + 1; |
6e909404 | 4313 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 4314 | #ifdef PERL_MAD |
cd81e915 | 4315 | if (!PL_thiswhite) |
6b29d1f5 | 4316 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4317 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 4318 | #endif |
89122651 | 4319 | PL_bufptr = s + 3; |
6e909404 JH |
4320 | PL_lex_state = LEX_INTERPCONCAT; |
4321 | return yylex(); | |
a0d0e21e | 4322 | } |
6e909404 | 4323 | else { |
90771dc0 | 4324 | I32 tmp; |
5db06880 NC |
4325 | if (!PL_madskills) /* when just compiling don't need correct */ |
4326 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
4327 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 4328 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
4329 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
4330 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 4331 | return REPORT(')'); |
6e909404 JH |
4332 | } |
4333 | if (PL_lex_casemods > 10) | |
4334 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
4335 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
4336 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
4337 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 4338 | start_force(PL_curforce); |
9ded7720 | 4339 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 4340 | force_next('('); |
cd81e915 | 4341 | start_force(PL_curforce); |
6e909404 | 4342 | if (*s == 'l') |
9ded7720 | 4343 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 4344 | else if (*s == 'u') |
9ded7720 | 4345 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 4346 | else if (*s == 'L') |
9ded7720 | 4347 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 4348 | else if (*s == 'U') |
9ded7720 | 4349 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 4350 | else if (*s == 'Q') |
9ded7720 | 4351 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
4352 | else |
4353 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 4354 | if (PL_madskills) { |
a5849ce5 NC |
4355 | SV* const tmpsv = newSVpvs("\\ "); |
4356 | /* replace the space with the character we want to escape | |
4357 | */ | |
4358 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
4359 | curmad('_', tmpsv); |
4360 | } | |
6e909404 | 4361 | PL_bufptr = s + 1; |
a0d0e21e | 4362 | } |
79072805 | 4363 | force_next(FUNC); |
3280af22 NIS |
4364 | if (PL_lex_starts) { |
4365 | s = PL_bufptr; | |
4366 | PL_lex_starts = 0; | |
5db06880 NC |
4367 | #ifdef PERL_MAD |
4368 | if (PL_madskills) { | |
cd81e915 NC |
4369 | if (PL_thistoken) |
4370 | sv_free(PL_thistoken); | |
6b29d1f5 | 4371 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4372 | } |
4373 | #endif | |
131b3ad0 DM |
4374 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4375 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
4376 | OPERATOR(','); | |
4377 | else | |
4378 | Aop(OP_CONCAT); | |
79072805 LW |
4379 | } |
4380 | else | |
cea2e8a9 | 4381 | return yylex(); |
79072805 LW |
4382 | } |
4383 | ||
55497cff | 4384 | case LEX_INTERPPUSH: |
bbf60fe6 | 4385 | return REPORT(sublex_push()); |
55497cff | 4386 | |
79072805 | 4387 | case LEX_INTERPSTART: |
3280af22 | 4388 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4389 | return REPORT(sublex_done()); |
607df283 | 4390 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4391 | "### Interpolated variable\n"); }); |
3280af22 NIS |
4392 | PL_expect = XTERM; |
4393 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
4394 | PL_lex_state = LEX_INTERPNORMAL; | |
4395 | if (PL_lex_dojoin) { | |
cd81e915 | 4396 | start_force(PL_curforce); |
9ded7720 | 4397 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4398 | force_next(','); |
cd81e915 | 4399 | start_force(PL_curforce); |
a0d0e21e | 4400 | force_ident("\"", '$'); |
cd81e915 | 4401 | start_force(PL_curforce); |
9ded7720 | 4402 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4403 | force_next('$'); |
cd81e915 | 4404 | start_force(PL_curforce); |
9ded7720 | 4405 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4406 | force_next('('); |
cd81e915 | 4407 | start_force(PL_curforce); |
9ded7720 | 4408 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
4409 | force_next(FUNC); |
4410 | } | |
3280af22 NIS |
4411 | if (PL_lex_starts++) { |
4412 | s = PL_bufptr; | |
5db06880 NC |
4413 | #ifdef PERL_MAD |
4414 | if (PL_madskills) { | |
cd81e915 NC |
4415 | if (PL_thistoken) |
4416 | sv_free(PL_thistoken); | |
6b29d1f5 | 4417 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4418 | } |
4419 | #endif | |
131b3ad0 DM |
4420 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4421 | if (!PL_lex_casemods && PL_lex_inpat) | |
4422 | OPERATOR(','); | |
4423 | else | |
4424 | Aop(OP_CONCAT); | |
79072805 | 4425 | } |
cea2e8a9 | 4426 | return yylex(); |
79072805 LW |
4427 | |
4428 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
4429 | if (intuit_more(PL_bufptr)) { |
4430 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
4431 | break; |
4432 | } | |
4433 | /* FALL THROUGH */ | |
4434 | ||
4435 | case LEX_INTERPEND: | |
3280af22 NIS |
4436 | if (PL_lex_dojoin) { |
4437 | PL_lex_dojoin = FALSE; | |
4438 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4439 | #ifdef PERL_MAD |
4440 | if (PL_madskills) { | |
cd81e915 NC |
4441 | if (PL_thistoken) |
4442 | sv_free(PL_thistoken); | |
6b29d1f5 | 4443 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4444 | } |
4445 | #endif | |
bbf60fe6 | 4446 | return REPORT(')'); |
79072805 | 4447 | } |
43a16006 | 4448 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 4449 | && SvEVALED(PL_lex_repl)) |
43a16006 | 4450 | { |
e9fa98b2 | 4451 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 4452 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 4453 | PL_lex_repl = NULL; |
e9fa98b2 | 4454 | } |
79072805 LW |
4455 | /* FALLTHROUGH */ |
4456 | case LEX_INTERPCONCAT: | |
4457 | #ifdef DEBUGGING | |
3280af22 | 4458 | if (PL_lex_brackets) |
cea2e8a9 | 4459 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 4460 | #endif |
3280af22 | 4461 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4462 | return REPORT(sublex_done()); |
79072805 | 4463 | |
3280af22 NIS |
4464 | if (SvIVX(PL_linestr) == '\'') { |
4465 | SV *sv = newSVsv(PL_linestr); | |
4466 | if (!PL_lex_inpat) | |
76e3520e | 4467 | sv = tokeq(sv); |
3280af22 | 4468 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 4469 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 4470 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 4471 | s = PL_bufend; |
79072805 LW |
4472 | } |
4473 | else { | |
3280af22 | 4474 | s = scan_const(PL_bufptr); |
79072805 | 4475 | if (*s == '\\') |
3280af22 | 4476 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 4477 | else |
3280af22 | 4478 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
4479 | } |
4480 | ||
3280af22 | 4481 | if (s != PL_bufptr) { |
cd81e915 | 4482 | start_force(PL_curforce); |
5db06880 NC |
4483 | if (PL_madskills) { |
4484 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
4485 | } | |
6154021b | 4486 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 4487 | PL_expect = XTERM; |
79072805 | 4488 | force_next(THING); |
131b3ad0 | 4489 | if (PL_lex_starts++) { |
5db06880 NC |
4490 | #ifdef PERL_MAD |
4491 | if (PL_madskills) { | |
cd81e915 NC |
4492 | if (PL_thistoken) |
4493 | sv_free(PL_thistoken); | |
6b29d1f5 | 4494 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4495 | } |
4496 | #endif | |
131b3ad0 DM |
4497 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4498 | if (!PL_lex_casemods && PL_lex_inpat) | |
4499 | OPERATOR(','); | |
4500 | else | |
4501 | Aop(OP_CONCAT); | |
4502 | } | |
79072805 | 4503 | else { |
3280af22 | 4504 | PL_bufptr = s; |
cea2e8a9 | 4505 | return yylex(); |
79072805 LW |
4506 | } |
4507 | } | |
4508 | ||
cea2e8a9 | 4509 | return yylex(); |
a0d0e21e | 4510 | case LEX_FORMLINE: |
3280af22 NIS |
4511 | PL_lex_state = LEX_NORMAL; |
4512 | s = scan_formline(PL_bufptr); | |
4513 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
4514 | goto rightbracket; |
4515 | OPERATOR(';'); | |
79072805 LW |
4516 | } |
4517 | ||
3280af22 NIS |
4518 | s = PL_bufptr; |
4519 | PL_oldoldbufptr = PL_oldbufptr; | |
4520 | PL_oldbufptr = s; | |
463ee0b2 LW |
4521 | |
4522 | retry: | |
5db06880 | 4523 | #ifdef PERL_MAD |
cd81e915 NC |
4524 | if (PL_thistoken) { |
4525 | sv_free(PL_thistoken); | |
4526 | PL_thistoken = 0; | |
5db06880 | 4527 | } |
cd81e915 | 4528 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 4529 | #endif |
378cc40b LW |
4530 | switch (*s) { |
4531 | default: | |
7e2040f0 | 4532 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 4533 | goto keylookup; |
b1fc3636 CJ |
4534 | { |
4535 | unsigned char c = *s; | |
4536 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); | |
4537 | if (len > UNRECOGNIZED_PRECEDE_COUNT) { | |
4538 | d = UTF ? (char *) Perl_utf8_hop(aTHX_ (U8 *) s, -UNRECOGNIZED_PRECEDE_COUNT) : s - UNRECOGNIZED_PRECEDE_COUNT; | |
4539 | } else { | |
4540 | d = PL_linestart; | |
4541 | } | |
4542 | *s = '\0'; | |
4543 | Perl_croak(aTHX_ "Unrecognized character \\x%02X; marked by <-- HERE after %s<-- HERE near column %d", c, d, (int) len + 1); | |
4544 | } | |
e929a76b LW |
4545 | case 4: |
4546 | case 26: | |
4547 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 4548 | case 0: |
5db06880 NC |
4549 | #ifdef PERL_MAD |
4550 | if (PL_madskills) | |
cd81e915 | 4551 | PL_faketokens = 0; |
5db06880 | 4552 | #endif |
3280af22 NIS |
4553 | if (!PL_rsfp) { |
4554 | PL_last_uni = 0; | |
4555 | PL_last_lop = 0; | |
c5ee2135 | 4556 | if (PL_lex_brackets) { |
10edeb5d JH |
4557 | yyerror((const char *) |
4558 | (PL_lex_formbrack | |
4559 | ? "Format not terminated" | |
4560 | : "Missing right curly or square bracket")); | |
c5ee2135 | 4561 | } |
4e553d73 | 4562 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 4563 | "### Tokener got EOF\n"); |
5f80b19c | 4564 | } ); |
79072805 | 4565 | TOKEN(0); |
463ee0b2 | 4566 | } |
3280af22 | 4567 | if (s++ < PL_bufend) |
a687059c | 4568 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
4569 | PL_last_uni = 0; |
4570 | PL_last_lop = 0; | |
4571 | if (!PL_in_eval && !PL_preambled) { | |
4572 | PL_preambled = TRUE; | |
5db06880 NC |
4573 | #ifdef PERL_MAD |
4574 | if (PL_madskills) | |
cd81e915 | 4575 | PL_faketokens = 1; |
5db06880 | 4576 | #endif |
5ab7ff98 NC |
4577 | if (PL_perldb) { |
4578 | /* Generate a string of Perl code to load the debugger. | |
4579 | * If PERL5DB is set, it will return the contents of that, | |
4580 | * otherwise a compile-time require of perl5db.pl. */ | |
4581 | ||
4582 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
4583 | ||
4584 | if (pdb) { | |
4585 | sv_setpv(PL_linestr, pdb); | |
4586 | sv_catpvs(PL_linestr,";"); | |
4587 | } else { | |
4588 | SETERRNO(0,SS_NORMAL); | |
4589 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
4590 | } | |
4591 | } else | |
4592 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
4593 | if (PL_preambleav) { |
4594 | SV **svp = AvARRAY(PL_preambleav); | |
4595 | SV **const end = svp + AvFILLp(PL_preambleav); | |
4596 | while(svp <= end) { | |
4597 | sv_catsv(PL_linestr, *svp); | |
4598 | ++svp; | |
396482e1 | 4599 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 4600 | } |
daba3364 | 4601 | sv_free(MUTABLE_SV(PL_preambleav)); |
3280af22 | 4602 | PL_preambleav = NULL; |
91b7def8 | 4603 | } |
9f639728 FR |
4604 | if (PL_minus_E) |
4605 | sv_catpvs(PL_linestr, | |
4606 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
3280af22 | 4607 | if (PL_minus_n || PL_minus_p) { |
f0e67a1d | 4608 | sv_catpvs(PL_linestr, "LINE: while (<>) {"/*}*/); |
3280af22 | 4609 | if (PL_minus_l) |
396482e1 | 4610 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 4611 | if (PL_minus_a) { |
3280af22 | 4612 | if (PL_minus_F) { |
3792a11b NC |
4613 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
4614 | || *PL_splitstr == '"') | |
3280af22 | 4615 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 4616 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 4617 | else { |
c8ef6a4b NC |
4618 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
4619 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 4620 | const char *splits = PL_splitstr; |
91d456ae | 4621 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
4622 | do { |
4623 | /* Need to \ \s */ | |
dd374669 AL |
4624 | if (*splits == '\\') |
4625 | sv_catpvn(PL_linestr, splits, 1); | |
4626 | sv_catpvn(PL_linestr, splits, 1); | |
4627 | } while (*splits++); | |
48c4c863 NC |
4628 | /* This loop will embed the trailing NUL of |
4629 | PL_linestr as the last thing it does before | |
4630 | terminating. */ | |
396482e1 | 4631 | sv_catpvs(PL_linestr, ");"); |
54310121 | 4632 | } |
2304df62 AD |
4633 | } |
4634 | else | |
396482e1 | 4635 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 4636 | } |
79072805 | 4637 | } |
396482e1 | 4638 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
4639 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4640 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4641 | PL_last_lop = PL_last_uni = NULL; |
65269a95 | 4642 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 4643 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 4644 | goto retry; |
a687059c | 4645 | } |
e929a76b | 4646 | do { |
580561a3 Z |
4647 | fake_eof = 0; |
4648 | bof = PL_rsfp ? TRUE : FALSE; | |
f0e67a1d | 4649 | if (0) { |
7e28d3af | 4650 | fake_eof: |
f0e67a1d Z |
4651 | fake_eof = LEX_FAKE_EOF; |
4652 | } | |
4653 | PL_bufptr = PL_bufend; | |
17cc9359 | 4654 | CopLINE_inc(PL_curcop); |
f0e67a1d | 4655 | if (!lex_next_chunk(fake_eof)) { |
17cc9359 | 4656 | CopLINE_dec(PL_curcop); |
f0e67a1d Z |
4657 | s = PL_bufptr; |
4658 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
4659 | } | |
17cc9359 | 4660 | CopLINE_dec(PL_curcop); |
5db06880 | 4661 | #ifdef PERL_MAD |
f0e67a1d | 4662 | if (!PL_rsfp) |
cd81e915 | 4663 | PL_realtokenstart = -1; |
5db06880 | 4664 | #endif |
f0e67a1d | 4665 | s = PL_bufptr; |
7aa207d6 JH |
4666 | /* If it looks like the start of a BOM or raw UTF-16, |
4667 | * check if it in fact is. */ | |
580561a3 | 4668 | if (bof && PL_rsfp && |
7aa207d6 JH |
4669 | (*s == 0 || |
4670 | *(U8*)s == 0xEF || | |
4671 | *(U8*)s >= 0xFE || | |
4672 | s[1] == 0)) { | |
eb160463 | 4673 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 4674 | if (bof) { |
3280af22 | 4675 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 4676 | s = swallow_bom((U8*)s); |
e929a76b | 4677 | } |
378cc40b | 4678 | } |
3280af22 | 4679 | if (PL_doextract) { |
a0d0e21e | 4680 | /* Incest with pod. */ |
5db06880 NC |
4681 | #ifdef PERL_MAD |
4682 | if (PL_madskills) | |
cd81e915 | 4683 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 4684 | #endif |
01a57ef7 | 4685 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
76f68e9b | 4686 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4687 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4688 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4689 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4690 | PL_doextract = FALSE; |
a0d0e21e | 4691 | } |
4e553d73 | 4692 | } |
85613cab Z |
4693 | if (PL_rsfp) |
4694 | incline(s); | |
3280af22 NIS |
4695 | } while (PL_doextract); |
4696 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3280af22 | 4697 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 4698 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 4699 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 4700 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 4701 | s++; |
a0d0e21e | 4702 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 4703 | s++; |
5db06880 NC |
4704 | #ifdef PERL_MAD |
4705 | if (PL_madskills) | |
cd81e915 | 4706 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 4707 | #endif |
bd61b366 | 4708 | d = NULL; |
3280af22 | 4709 | if (!PL_in_eval) { |
44a8e56a | 4710 | if (*s == '#' && *(s+1) == '!') |
4711 | d = s + 2; | |
4712 | #ifdef ALTERNATE_SHEBANG | |
4713 | else { | |
bfed75c6 | 4714 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 4715 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
4716 | d = s + (sizeof(as) - 1); | |
4717 | } | |
4718 | #endif /* ALTERNATE_SHEBANG */ | |
4719 | } | |
4720 | if (d) { | |
b8378b72 | 4721 | char *ipath; |
774d564b | 4722 | char *ipathend; |
b8378b72 | 4723 | |
774d564b | 4724 | while (isSPACE(*d)) |
b8378b72 CS |
4725 | d++; |
4726 | ipath = d; | |
774d564b | 4727 | while (*d && !isSPACE(*d)) |
4728 | d++; | |
4729 | ipathend = d; | |
4730 | ||
4731 | #ifdef ARG_ZERO_IS_SCRIPT | |
4732 | if (ipathend > ipath) { | |
4733 | /* | |
4734 | * HP-UX (at least) sets argv[0] to the script name, | |
4735 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
4736 | * at least, set argv[0] to the basename of the Perl | |
4737 | * interpreter. So, having found "#!", we'll set it right. | |
4738 | */ | |
fafc274c NC |
4739 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
4740 | SVt_PV)); /* $^X */ | |
774d564b | 4741 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 4742 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 4743 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 4744 | SvSETMAGIC(x); |
4745 | } | |
556c1dec JH |
4746 | else { |
4747 | STRLEN blen; | |
4748 | STRLEN llen; | |
cfd0369c | 4749 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 4750 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
4751 | if (llen < blen) { |
4752 | bstart += blen - llen; | |
4753 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
4754 | sv_setpvn(x, ipath, ipathend - ipath); | |
4755 | SvSETMAGIC(x); | |
4756 | } | |
4757 | } | |
4758 | } | |
774d564b | 4759 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 4760 | } |
774d564b | 4761 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
4762 | |
4763 | /* | |
4764 | * Look for options. | |
4765 | */ | |
748a9306 | 4766 | d = instr(s,"perl -"); |
84e30d1a | 4767 | if (!d) { |
748a9306 | 4768 | d = instr(s,"perl"); |
84e30d1a GS |
4769 | #if defined(DOSISH) |
4770 | /* avoid getting into infinite loops when shebang | |
4771 | * line contains "Perl" rather than "perl" */ | |
4772 | if (!d) { | |
4773 | for (d = ipathend-4; d >= ipath; --d) { | |
4774 | if ((*d == 'p' || *d == 'P') | |
4775 | && !ibcmp(d, "perl", 4)) | |
4776 | { | |
4777 | break; | |
4778 | } | |
4779 | } | |
4780 | if (d < ipath) | |
bd61b366 | 4781 | d = NULL; |
84e30d1a GS |
4782 | } |
4783 | #endif | |
4784 | } | |
44a8e56a | 4785 | #ifdef ALTERNATE_SHEBANG |
4786 | /* | |
4787 | * If the ALTERNATE_SHEBANG on this system starts with a | |
4788 | * character that can be part of a Perl expression, then if | |
4789 | * we see it but not "perl", we're probably looking at the | |
4790 | * start of Perl code, not a request to hand off to some | |
4791 | * other interpreter. Similarly, if "perl" is there, but | |
4792 | * not in the first 'word' of the line, we assume the line | |
4793 | * contains the start of the Perl program. | |
44a8e56a | 4794 | */ |
4795 | if (d && *s != '#') { | |
f54cb97a | 4796 | const char *c = ipath; |
44a8e56a | 4797 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
4798 | c++; | |
4799 | if (c < d) | |
bd61b366 | 4800 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 4801 | else |
4802 | *s = '#'; /* Don't try to parse shebang line */ | |
4803 | } | |
774d564b | 4804 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 4805 | if (!d && |
44a8e56a | 4806 | *s == '#' && |
774d564b | 4807 | ipathend > ipath && |
3280af22 | 4808 | !PL_minus_c && |
748a9306 | 4809 | !instr(s,"indir") && |
3280af22 | 4810 | instr(PL_origargv[0],"perl")) |
748a9306 | 4811 | { |
27da23d5 | 4812 | dVAR; |
9f68db38 | 4813 | char **newargv; |
9f68db38 | 4814 | |
774d564b | 4815 | *ipathend = '\0'; |
4816 | s = ipathend + 1; | |
3280af22 | 4817 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 4818 | s++; |
3280af22 | 4819 | if (s < PL_bufend) { |
d85f917e | 4820 | Newx(newargv,PL_origargc+3,char*); |
9f68db38 | 4821 | newargv[1] = s; |
3280af22 | 4822 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
4823 | s++; |
4824 | *s = '\0'; | |
3280af22 | 4825 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
4826 | } |
4827 | else | |
3280af22 | 4828 | newargv = PL_origargv; |
774d564b | 4829 | newargv[0] = ipath; |
b35112e7 | 4830 | PERL_FPU_PRE_EXEC |
b4748376 | 4831 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 4832 | PERL_FPU_POST_EXEC |
cea2e8a9 | 4833 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 4834 | } |
748a9306 | 4835 | if (d) { |
c35e046a AL |
4836 | while (*d && !isSPACE(*d)) |
4837 | d++; | |
4838 | while (SPACE_OR_TAB(*d)) | |
4839 | d++; | |
748a9306 LW |
4840 | |
4841 | if (*d++ == '-') { | |
f54cb97a | 4842 | const bool switches_done = PL_doswitches; |
fb993905 GA |
4843 | const U32 oldpdb = PL_perldb; |
4844 | const bool oldn = PL_minus_n; | |
4845 | const bool oldp = PL_minus_p; | |
c7030b81 | 4846 | const char *d1 = d; |
fb993905 | 4847 | |
8cc95fdb | 4848 | do { |
4ba71d51 FC |
4849 | bool baduni = FALSE; |
4850 | if (*d1 == 'C') { | |
bd0ab00d NC |
4851 | const char *d2 = d1 + 1; |
4852 | if (parse_unicode_opts((const char **)&d2) | |
4853 | != PL_unicode) | |
4854 | baduni = TRUE; | |
4ba71d51 FC |
4855 | } |
4856 | if (baduni || *d1 == 'M' || *d1 == 'm') { | |
c7030b81 NC |
4857 | const char * const m = d1; |
4858 | while (*d1 && !isSPACE(*d1)) | |
4859 | d1++; | |
cea2e8a9 | 4860 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 4861 | (int)(d1 - m), m); |
8cc95fdb | 4862 | } |
c7030b81 NC |
4863 | d1 = moreswitches(d1); |
4864 | } while (d1); | |
f0b2cf55 YST |
4865 | if (PL_doswitches && !switches_done) { |
4866 | int argc = PL_origargc; | |
4867 | char **argv = PL_origargv; | |
4868 | do { | |
4869 | argc--,argv++; | |
4870 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
4871 | init_argv_symbols(argc,argv); | |
4872 | } | |
65269a95 | 4873 | if (((PERLDB_LINE || PERLDB_SAVESRC) && !oldpdb) || |
155aba94 | 4874 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) |
b084f20b | 4875 | /* if we have already added "LINE: while (<>) {", |
4876 | we must not do it again */ | |
748a9306 | 4877 | { |
76f68e9b | 4878 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4879 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4880 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4881 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4882 | PL_preambled = FALSE; |
65269a95 | 4883 | if (PERLDB_LINE || PERLDB_SAVESRC) |
3280af22 | 4884 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
4885 | goto retry; |
4886 | } | |
a0d0e21e | 4887 | } |
79072805 | 4888 | } |
9f68db38 | 4889 | } |
79072805 | 4890 | } |
3280af22 NIS |
4891 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4892 | PL_bufptr = s; | |
4893 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4894 | return yylex(); |
ae986130 | 4895 | } |
378cc40b | 4896 | goto retry; |
4fdae800 | 4897 | case '\r': |
6a27c188 | 4898 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 4899 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 4900 | Perl_croak(aTHX_ |
cc507455 | 4901 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 4902 | #endif |
4fdae800 | 4903 | case ' ': case '\t': case '\f': case 013: |
5db06880 | 4904 | #ifdef PERL_MAD |
cd81e915 | 4905 | PL_realtokenstart = -1; |
ac372eb8 RD |
4906 | if (!PL_thiswhite) |
4907 | PL_thiswhite = newSVpvs(""); | |
4908 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 4909 | #endif |
ac372eb8 | 4910 | s++; |
378cc40b | 4911 | goto retry; |
378cc40b | 4912 | case '#': |
e929a76b | 4913 | case '\n': |
5db06880 | 4914 | #ifdef PERL_MAD |
cd81e915 | 4915 | PL_realtokenstart = -1; |
5db06880 | 4916 | if (PL_madskills) |
cd81e915 | 4917 | PL_faketokens = 0; |
5db06880 | 4918 | #endif |
3280af22 | 4919 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
4920 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
4921 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
4922 | CopLINE_dec(PL_curcop); | |
4923 | incline(s); | |
4924 | } | |
5db06880 NC |
4925 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
4926 | s = SKIPSPACE0(s); | |
4927 | if (!PL_in_eval || PL_rsfp) | |
4928 | incline(s); | |
4929 | } | |
4930 | else { | |
4931 | d = s; | |
4932 | while (d < PL_bufend && *d != '\n') | |
4933 | d++; | |
4934 | if (d < PL_bufend) | |
4935 | d++; | |
4936 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4937 | Perl_croak(aTHX_ "panic: input overflow"); | |
4938 | #ifdef PERL_MAD | |
4939 | if (PL_madskills) | |
cd81e915 | 4940 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
4941 | #endif |
4942 | s = d; | |
4943 | incline(s); | |
4944 | } | |
3280af22 NIS |
4945 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4946 | PL_bufptr = s; | |
4947 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4948 | return yylex(); |
a687059c | 4949 | } |
378cc40b | 4950 | } |
a687059c | 4951 | else { |
5db06880 NC |
4952 | #ifdef PERL_MAD |
4953 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
4954 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 4955 | PL_faketokens = 0; |
5db06880 NC |
4956 | s = SKIPSPACE0(s); |
4957 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4958 | } | |
4959 | s = SKIPSPACE0(s); | |
4960 | } | |
4961 | else { | |
4962 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4963 | d = s; | |
4964 | while (d < PL_bufend && *d != '\n') | |
4965 | d++; | |
4966 | if (d < PL_bufend) | |
4967 | d++; | |
4968 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4969 | Perl_croak(aTHX_ "panic: input overflow"); | |
4970 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4971 | if (!PL_thiswhite) |
6b29d1f5 | 4972 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4973 | if (CopLINE(PL_curcop) == 1) { |
76f68e9b | 4974 | sv_setpvs(PL_thiswhite, ""); |
cd81e915 | 4975 | PL_faketokens = 0; |
5db06880 | 4976 | } |
cd81e915 | 4977 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4978 | } |
4979 | s = d; | |
4980 | /* } | |
4981 | *s = '\0'; | |
4982 | PL_bufend = s; */ | |
4983 | } | |
4984 | #else | |
378cc40b | 4985 | *s = '\0'; |
3280af22 | 4986 | PL_bufend = s; |
5db06880 | 4987 | #endif |
a687059c | 4988 | } |
378cc40b LW |
4989 | goto retry; |
4990 | case '-': | |
79072805 | 4991 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4992 | I32 ftst = 0; |
90771dc0 | 4993 | char tmp; |
e5edeb50 | 4994 | |
378cc40b | 4995 | s++; |
3280af22 | 4996 | PL_bufptr = s; |
748a9306 LW |
4997 | tmp = *s++; |
4998 | ||
bf4acbe4 | 4999 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
5000 | s++; |
5001 | ||
5002 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 5003 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 5004 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
5005 | OPERATOR('-'); /* unary minus */ |
5006 | } | |
3280af22 | 5007 | PL_last_uni = PL_oldbufptr; |
748a9306 | 5008 | switch (tmp) { |
e5edeb50 JH |
5009 | case 'r': ftst = OP_FTEREAD; break; |
5010 | case 'w': ftst = OP_FTEWRITE; break; | |
5011 | case 'x': ftst = OP_FTEEXEC; break; | |
5012 | case 'o': ftst = OP_FTEOWNED; break; | |
5013 | case 'R': ftst = OP_FTRREAD; break; | |
5014 | case 'W': ftst = OP_FTRWRITE; break; | |
5015 | case 'X': ftst = OP_FTREXEC; break; | |
5016 | case 'O': ftst = OP_FTROWNED; break; | |
5017 | case 'e': ftst = OP_FTIS; break; | |
5018 | case 'z': ftst = OP_FTZERO; break; | |
5019 | case 's': ftst = OP_FTSIZE; break; | |
5020 | case 'f': ftst = OP_FTFILE; break; | |
5021 | case 'd': ftst = OP_FTDIR; break; | |
5022 | case 'l': ftst = OP_FTLINK; break; | |
5023 | case 'p': ftst = OP_FTPIPE; break; | |
5024 | case 'S': ftst = OP_FTSOCK; break; | |
5025 | case 'u': ftst = OP_FTSUID; break; | |
5026 | case 'g': ftst = OP_FTSGID; break; | |
5027 | case 'k': ftst = OP_FTSVTX; break; | |
5028 | case 'b': ftst = OP_FTBLK; break; | |
5029 | case 'c': ftst = OP_FTCHR; break; | |
5030 | case 't': ftst = OP_FTTTY; break; | |
5031 | case 'T': ftst = OP_FTTEXT; break; | |
5032 | case 'B': ftst = OP_FTBINARY; break; | |
5033 | case 'M': case 'A': case 'C': | |
fafc274c | 5034 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
5035 | switch (tmp) { |
5036 | case 'M': ftst = OP_FTMTIME; break; | |
5037 | case 'A': ftst = OP_FTATIME; break; | |
5038 | case 'C': ftst = OP_FTCTIME; break; | |
5039 | default: break; | |
5040 | } | |
5041 | break; | |
378cc40b | 5042 | default: |
378cc40b LW |
5043 | break; |
5044 | } | |
e5edeb50 | 5045 | if (ftst) { |
eb160463 | 5046 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 5047 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 5048 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 5049 | } ); |
e5edeb50 JH |
5050 | FTST(ftst); |
5051 | } | |
5052 | else { | |
5053 | /* Assume it was a minus followed by a one-letter named | |
5054 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 5055 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 5056 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 5057 | (int) tmp); |
5f80b19c | 5058 | } ); |
3cf7b4c4 | 5059 | s = --PL_bufptr; |
e5edeb50 | 5060 | } |
378cc40b | 5061 | } |
90771dc0 NC |
5062 | { |
5063 | const char tmp = *s++; | |
5064 | if (*s == tmp) { | |
5065 | s++; | |
5066 | if (PL_expect == XOPERATOR) | |
5067 | TERM(POSTDEC); | |
5068 | else | |
5069 | OPERATOR(PREDEC); | |
5070 | } | |
5071 | else if (*s == '>') { | |
5072 | s++; | |
29595ff2 | 5073 | s = SKIPSPACE1(s); |
90771dc0 NC |
5074 | if (isIDFIRST_lazy_if(s,UTF)) { |
5075 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
5076 | TOKEN(ARROW); | |
5077 | } | |
5078 | else if (*s == '$') | |
5079 | OPERATOR(ARROW); | |
5080 | else | |
5081 | TERM(ARROW); | |
5082 | } | |
3280af22 | 5083 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
5084 | Aop(OP_SUBTRACT); |
5085 | else { | |
5086 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
5087 | check_uni(); | |
5088 | OPERATOR('-'); /* unary minus */ | |
79072805 | 5089 | } |
2f3197b3 | 5090 | } |
79072805 | 5091 | |
378cc40b | 5092 | case '+': |
90771dc0 NC |
5093 | { |
5094 | const char tmp = *s++; | |
5095 | if (*s == tmp) { | |
5096 | s++; | |
5097 | if (PL_expect == XOPERATOR) | |
5098 | TERM(POSTINC); | |
5099 | else | |
5100 | OPERATOR(PREINC); | |
5101 | } | |
3280af22 | 5102 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
5103 | Aop(OP_ADD); |
5104 | else { | |
5105 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
5106 | check_uni(); | |
5107 | OPERATOR('+'); | |
5108 | } | |
2f3197b3 | 5109 | } |
a687059c | 5110 | |
378cc40b | 5111 | case '*': |
3280af22 NIS |
5112 | if (PL_expect != XOPERATOR) { |
5113 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
5114 | PL_expect = XOPERATOR; | |
5115 | force_ident(PL_tokenbuf, '*'); | |
5116 | if (!*PL_tokenbuf) | |
a0d0e21e | 5117 | PREREF('*'); |
79072805 | 5118 | TERM('*'); |
a687059c | 5119 | } |
79072805 LW |
5120 | s++; |
5121 | if (*s == '*') { | |
a687059c | 5122 | s++; |
79072805 | 5123 | PWop(OP_POW); |
a687059c | 5124 | } |
79072805 LW |
5125 | Mop(OP_MULTIPLY); |
5126 | ||
378cc40b | 5127 | case '%': |
3280af22 | 5128 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 5129 | ++s; |
5130 | Mop(OP_MODULO); | |
a687059c | 5131 | } |
3280af22 | 5132 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
5133 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
5134 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 5135 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 5136 | PREREF('%'); |
a687059c | 5137 | } |
3280af22 | 5138 | PL_pending_ident = '%'; |
bbce6d69 | 5139 | TERM('%'); |
a687059c | 5140 | |
378cc40b | 5141 | case '^': |
79072805 | 5142 | s++; |
a0d0e21e | 5143 | BOop(OP_BIT_XOR); |
79072805 | 5144 | case '[': |
3280af22 | 5145 | PL_lex_brackets++; |
df3467db IG |
5146 | { |
5147 | const char tmp = *s++; | |
5148 | OPERATOR(tmp); | |
5149 | } | |
378cc40b | 5150 | case '~': |
0d863452 | 5151 | if (s[1] == '~' |
3e7dd34d | 5152 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
5153 | { |
5154 | s += 2; | |
5155 | Eop(OP_SMARTMATCH); | |
5156 | } | |
378cc40b | 5157 | case ',': |
90771dc0 NC |
5158 | { |
5159 | const char tmp = *s++; | |
5160 | OPERATOR(tmp); | |
5161 | } | |
a0d0e21e LW |
5162 | case ':': |
5163 | if (s[1] == ':') { | |
5164 | len = 0; | |
0bfa2a8a | 5165 | goto just_a_word_zero_gv; |
a0d0e21e LW |
5166 | } |
5167 | s++; | |
09bef843 SB |
5168 | switch (PL_expect) { |
5169 | OP *attrs; | |
5db06880 NC |
5170 | #ifdef PERL_MAD |
5171 | I32 stuffstart; | |
5172 | #endif | |
09bef843 SB |
5173 | case XOPERATOR: |
5174 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
5175 | break; | |
5176 | PL_bufptr = s; /* update in case we back off */ | |
d83f38d8 NC |
5177 | if (*s == '=') { |
5178 | deprecate(":= for an empty attribute list"); | |
5179 | } | |
09bef843 SB |
5180 | goto grabattrs; |
5181 | case XATTRBLOCK: | |
5182 | PL_expect = XBLOCK; | |
5183 | goto grabattrs; | |
5184 | case XATTRTERM: | |
5185 | PL_expect = XTERMBLOCK; | |
5186 | grabattrs: | |
5db06880 NC |
5187 | #ifdef PERL_MAD |
5188 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
5189 | #endif | |
29595ff2 | 5190 | s = PEEKSPACE(s); |
5f66b61c | 5191 | attrs = NULL; |
7e2040f0 | 5192 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 5193 | I32 tmp; |
5cc237b8 | 5194 | SV *sv; |
09bef843 | 5195 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5196 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
5197 | if (tmp < 0) tmp = -tmp; |
5198 | switch (tmp) { | |
5199 | case KEY_or: | |
5200 | case KEY_and: | |
5201 | case KEY_for: | |
11baf631 | 5202 | case KEY_foreach: |
f9829d6b GS |
5203 | case KEY_unless: |
5204 | case KEY_if: | |
5205 | case KEY_while: | |
5206 | case KEY_until: | |
5207 | goto got_attrs; | |
5208 | default: | |
5209 | break; | |
5210 | } | |
5211 | } | |
5cc237b8 | 5212 | sv = newSVpvn(s, len); |
09bef843 SB |
5213 | if (*d == '(') { |
5214 | d = scan_str(d,TRUE,TRUE); | |
5215 | if (!d) { | |
09bef843 SB |
5216 | /* MUST advance bufptr here to avoid bogus |
5217 | "at end of line" context messages from yyerror(). | |
5218 | */ | |
5219 | PL_bufptr = s + len; | |
5220 | yyerror("Unterminated attribute parameter in attribute list"); | |
5221 | if (attrs) | |
5222 | op_free(attrs); | |
5cc237b8 | 5223 | sv_free(sv); |
bbf60fe6 | 5224 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
5225 | } |
5226 | } | |
5227 | if (PL_lex_stuff) { | |
09bef843 SB |
5228 | sv_catsv(sv, PL_lex_stuff); |
5229 | attrs = append_elem(OP_LIST, attrs, | |
5230 | newSVOP(OP_CONST, 0, sv)); | |
5231 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 5232 | PL_lex_stuff = NULL; |
09bef843 SB |
5233 | } |
5234 | else { | |
5cc237b8 BS |
5235 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
5236 | sv_free(sv); | |
1108974d | 5237 | if (PL_in_my == KEY_our) { |
df9a6019 | 5238 | deprecate(":unique"); |
1108974d | 5239 | } |
bfed75c6 | 5240 | else |
371fce9b DM |
5241 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
5242 | } | |
5243 | ||
d3cea301 SB |
5244 | /* NOTE: any CV attrs applied here need to be part of |
5245 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
5246 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
5247 | sv_free(sv); | |
78f9721b | 5248 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
5249 | } |
5250 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
5251 | sv_free(sv); | |
8e5dadda | 5252 | deprecate(":locked"); |
5cc237b8 BS |
5253 | } |
5254 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
5255 | sv_free(sv); | |
78f9721b | 5256 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 5257 | } |
78f9721b SM |
5258 | /* After we've set the flags, it could be argued that |
5259 | we don't need to do the attributes.pm-based setting | |
5260 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
5261 | flags. To experiment with that, uncomment the |
5262 | following "else". (Note that's already been | |
5263 | uncommented. That keeps the above-applied built-in | |
5264 | attributes from being intercepted (and possibly | |
5265 | rejected) by a package's attribute routines, but is | |
5266 | justified by the performance win for the common case | |
5267 | of applying only built-in attributes.) */ | |
0256094b | 5268 | else |
78f9721b SM |
5269 | attrs = append_elem(OP_LIST, attrs, |
5270 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 5271 | sv)); |
09bef843 | 5272 | } |
29595ff2 | 5273 | s = PEEKSPACE(d); |
0120eecf | 5274 | if (*s == ':' && s[1] != ':') |
29595ff2 | 5275 | s = PEEKSPACE(s+1); |
0120eecf GS |
5276 | else if (s == d) |
5277 | break; /* require real whitespace or :'s */ | |
29595ff2 | 5278 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 5279 | } |
90771dc0 NC |
5280 | { |
5281 | const char tmp | |
5282 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
5283 | if (*s != ';' && *s != '}' && *s != tmp | |
5284 | && (tmp != '=' || *s != ')')) { | |
5285 | const char q = ((*s == '\'') ? '"' : '\''); | |
5286 | /* If here for an expression, and parsed no attrs, back | |
5287 | off. */ | |
5288 | if (tmp == '=' && !attrs) { | |
5289 | s = PL_bufptr; | |
5290 | break; | |
5291 | } | |
5292 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
5293 | context messages from yyerror(). | |
5294 | */ | |
5295 | PL_bufptr = s; | |
10edeb5d JH |
5296 | yyerror( (const char *) |
5297 | (*s | |
5298 | ? Perl_form(aTHX_ "Invalid separator character " | |
5299 | "%c%c%c in attribute list", q, *s, q) | |
5300 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
5301 | if (attrs) |
5302 | op_free(attrs); | |
5303 | OPERATOR(':'); | |
09bef843 | 5304 | } |
09bef843 | 5305 | } |
f9829d6b | 5306 | got_attrs: |
09bef843 | 5307 | if (attrs) { |
cd81e915 | 5308 | start_force(PL_curforce); |
9ded7720 | 5309 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 5310 | CURMAD('_', PL_nextwhite); |
89122651 | 5311 | force_next(THING); |
5db06880 NC |
5312 | } |
5313 | #ifdef PERL_MAD | |
5314 | if (PL_madskills) { | |
cd81e915 | 5315 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 5316 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 5317 | } |
5db06880 | 5318 | #endif |
09bef843 SB |
5319 | TOKEN(COLONATTR); |
5320 | } | |
a0d0e21e | 5321 | OPERATOR(':'); |
8990e307 LW |
5322 | case '(': |
5323 | s++; | |
3280af22 NIS |
5324 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
5325 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 5326 | else |
3280af22 | 5327 | PL_expect = XTERM; |
29595ff2 | 5328 | s = SKIPSPACE1(s); |
a0d0e21e | 5329 | TOKEN('('); |
378cc40b | 5330 | case ';': |
f4dd75d9 | 5331 | CLINE; |
90771dc0 NC |
5332 | { |
5333 | const char tmp = *s++; | |
5334 | OPERATOR(tmp); | |
5335 | } | |
378cc40b | 5336 | case ')': |
90771dc0 NC |
5337 | { |
5338 | const char tmp = *s++; | |
29595ff2 | 5339 | s = SKIPSPACE1(s); |
90771dc0 NC |
5340 | if (*s == '{') |
5341 | PREBLOCK(tmp); | |
5342 | TERM(tmp); | |
5343 | } | |
79072805 LW |
5344 | case ']': |
5345 | s++; | |
3280af22 | 5346 | if (PL_lex_brackets <= 0) |
d98d5fff | 5347 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 5348 | else |
3280af22 NIS |
5349 | --PL_lex_brackets; |
5350 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5351 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
5352 | if (*s == '-' && s[1] == '>') |
5353 | PL_lex_state = LEX_INTERPENDMAYBE; | |
5354 | else if (*s != '[' && *s != '{') | |
3280af22 | 5355 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5356 | } |
5357 | } | |
4633a7c4 | 5358 | TERM(']'); |
79072805 LW |
5359 | case '{': |
5360 | leftbracket: | |
79072805 | 5361 | s++; |
3280af22 | 5362 | if (PL_lex_brackets > 100) { |
8edd5f42 | 5363 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 5364 | } |
3280af22 | 5365 | switch (PL_expect) { |
a0d0e21e | 5366 | case XTERM: |
3280af22 | 5367 | if (PL_lex_formbrack) { |
a0d0e21e LW |
5368 | s--; |
5369 | PRETERMBLOCK(DO); | |
5370 | } | |
3280af22 NIS |
5371 | if (PL_oldoldbufptr == PL_last_lop) |
5372 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5373 | else |
3280af22 | 5374 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 5375 | OPERATOR(HASHBRACK); |
a0d0e21e | 5376 | case XOPERATOR: |
bf4acbe4 | 5377 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 5378 | s++; |
44a8e56a | 5379 | d = s; |
3280af22 NIS |
5380 | PL_tokenbuf[0] = '\0'; |
5381 | if (d < PL_bufend && *d == '-') { | |
5382 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 5383 | d++; |
bf4acbe4 | 5384 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 5385 | d++; |
5386 | } | |
7e2040f0 | 5387 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 5388 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 5389 | FALSE, &len); |
bf4acbe4 | 5390 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
5391 | d++; |
5392 | if (*d == '}') { | |
f54cb97a | 5393 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 5394 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
5395 | if (minus) | |
5396 | force_next('-'); | |
748a9306 LW |
5397 | } |
5398 | } | |
5399 | /* FALL THROUGH */ | |
09bef843 | 5400 | case XATTRBLOCK: |
748a9306 | 5401 | case XBLOCK: |
3280af22 NIS |
5402 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
5403 | PL_expect = XSTATE; | |
a0d0e21e | 5404 | break; |
09bef843 | 5405 | case XATTRTERM: |
a0d0e21e | 5406 | case XTERMBLOCK: |
3280af22 NIS |
5407 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
5408 | PL_expect = XSTATE; | |
a0d0e21e LW |
5409 | break; |
5410 | default: { | |
f54cb97a | 5411 | const char *t; |
3280af22 NIS |
5412 | if (PL_oldoldbufptr == PL_last_lop) |
5413 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5414 | else |
3280af22 | 5415 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 5416 | s = SKIPSPACE1(s); |
8452ff4b SB |
5417 | if (*s == '}') { |
5418 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
5419 | PL_expect = XTERM; | |
5420 | /* This hack is to get the ${} in the message. */ | |
5421 | PL_bufptr = s+1; | |
5422 | yyerror("syntax error"); | |
5423 | break; | |
5424 | } | |
a0d0e21e | 5425 | OPERATOR(HASHBRACK); |
8452ff4b | 5426 | } |
b8a4b1be GS |
5427 | /* This hack serves to disambiguate a pair of curlies |
5428 | * as being a block or an anon hash. Normally, expectation | |
5429 | * determines that, but in cases where we're not in a | |
5430 | * position to expect anything in particular (like inside | |
5431 | * eval"") we have to resolve the ambiguity. This code | |
5432 | * covers the case where the first term in the curlies is a | |
5433 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 5434 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
5435 | * curly in order to force resolution as an anon hash. |
5436 | * | |
5437 | * XXX should probably propagate the outer expectation | |
5438 | * into eval"" to rely less on this hack, but that could | |
5439 | * potentially break current behavior of eval"". | |
5440 | * GSAR 97-07-21 | |
5441 | */ | |
5442 | t = s; | |
5443 | if (*s == '\'' || *s == '"' || *s == '`') { | |
5444 | /* common case: get past first string, handling escapes */ | |
3280af22 | 5445 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
5446 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
5447 | t++; | |
5448 | t++; | |
a0d0e21e | 5449 | } |
b8a4b1be | 5450 | else if (*s == 'q') { |
3280af22 | 5451 | if (++t < PL_bufend |
b8a4b1be | 5452 | && (!isALNUM(*t) |
3280af22 | 5453 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
5454 | && !isALNUM(*t)))) |
5455 | { | |
abc667d1 | 5456 | /* skip q//-like construct */ |
f54cb97a | 5457 | const char *tmps; |
b8a4b1be GS |
5458 | char open, close, term; |
5459 | I32 brackets = 1; | |
5460 | ||
3280af22 | 5461 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 5462 | t++; |
abc667d1 DM |
5463 | /* check for q => */ |
5464 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
5465 | OPERATOR(HASHBRACK); | |
5466 | } | |
b8a4b1be GS |
5467 | term = *t; |
5468 | open = term; | |
5469 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
5470 | term = tmps[5]; | |
5471 | close = term; | |
5472 | if (open == close) | |
3280af22 NIS |
5473 | for (t++; t < PL_bufend; t++) { |
5474 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 5475 | t++; |
6d07e5e9 | 5476 | else if (*t == open) |
b8a4b1be GS |
5477 | break; |
5478 | } | |
abc667d1 | 5479 | else { |
3280af22 NIS |
5480 | for (t++; t < PL_bufend; t++) { |
5481 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 5482 | t++; |
6d07e5e9 | 5483 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
5484 | break; |
5485 | else if (*t == open) | |
5486 | brackets++; | |
5487 | } | |
abc667d1 DM |
5488 | } |
5489 | t++; | |
b8a4b1be | 5490 | } |
abc667d1 DM |
5491 | else |
5492 | /* skip plain q word */ | |
5493 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
5494 | t += UTF8SKIP(t); | |
a0d0e21e | 5495 | } |
7e2040f0 | 5496 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 5497 | t += UTF8SKIP(t); |
7e2040f0 | 5498 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 5499 | t += UTF8SKIP(t); |
a0d0e21e | 5500 | } |
3280af22 | 5501 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 5502 | t++; |
b8a4b1be GS |
5503 | /* if comma follows first term, call it an anon hash */ |
5504 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 5505 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 5506 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 5507 | OPERATOR(HASHBRACK); |
3280af22 | 5508 | if (PL_expect == XREF) |
4e4e412b | 5509 | PL_expect = XTERM; |
a0d0e21e | 5510 | else { |
3280af22 NIS |
5511 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
5512 | PL_expect = XSTATE; | |
a0d0e21e | 5513 | } |
8990e307 | 5514 | } |
a0d0e21e | 5515 | break; |
463ee0b2 | 5516 | } |
6154021b | 5517 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 5518 | if (isSPACE(*s) || *s == '#') |
3280af22 | 5519 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 5520 | TOKEN('{'); |
378cc40b | 5521 | case '}': |
79072805 LW |
5522 | rightbracket: |
5523 | s++; | |
3280af22 | 5524 | if (PL_lex_brackets <= 0) |
d98d5fff | 5525 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 5526 | else |
3280af22 | 5527 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 5528 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
5529 | PL_lex_formbrack = 0; |
5530 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5531 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
5532 | if (PL_expect & XFAKEBRACK) { |
5533 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
5534 | PL_lex_state = LEX_INTERPEND; |
5535 | PL_bufptr = s; | |
5db06880 NC |
5536 | #if 0 |
5537 | if (PL_madskills) { | |
cd81e915 | 5538 | if (!PL_thiswhite) |
6b29d1f5 | 5539 | PL_thiswhite = newSVpvs(""); |
76f68e9b | 5540 | sv_catpvs(PL_thiswhite,"}"); |
5db06880 NC |
5541 | } |
5542 | #endif | |
cea2e8a9 | 5543 | return yylex(); /* ignore fake brackets */ |
79072805 | 5544 | } |
fa83b5b6 | 5545 | if (*s == '-' && s[1] == '>') |
3280af22 | 5546 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 5547 | else if (*s != '[' && *s != '{') |
3280af22 | 5548 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5549 | } |
5550 | } | |
9059aa12 LW |
5551 | if (PL_expect & XFAKEBRACK) { |
5552 | PL_expect &= XENUMMASK; | |
3280af22 | 5553 | PL_bufptr = s; |
cea2e8a9 | 5554 | return yylex(); /* ignore fake brackets */ |
748a9306 | 5555 | } |
cd81e915 | 5556 | start_force(PL_curforce); |
5db06880 NC |
5557 | if (PL_madskills) { |
5558 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 5559 | CURMAD('_', PL_thiswhite); |
5db06880 | 5560 | } |
79072805 | 5561 | force_next('}'); |
5db06880 | 5562 | #ifdef PERL_MAD |
cd81e915 | 5563 | if (!PL_thistoken) |
6b29d1f5 | 5564 | PL_thistoken = newSVpvs(""); |
5db06880 | 5565 | #endif |
79072805 | 5566 | TOKEN(';'); |
378cc40b LW |
5567 | case '&': |
5568 | s++; | |
90771dc0 | 5569 | if (*s++ == '&') |
a0d0e21e | 5570 | AOPERATOR(ANDAND); |
378cc40b | 5571 | s--; |
3280af22 | 5572 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
5573 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
5574 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 5575 | { |
57843af0 | 5576 | CopLINE_dec(PL_curcop); |
f1f66076 | 5577 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5578 | CopLINE_inc(PL_curcop); |
463ee0b2 | 5579 | } |
79072805 | 5580 | BAop(OP_BIT_AND); |
463ee0b2 | 5581 | } |
79072805 | 5582 | |
3280af22 NIS |
5583 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
5584 | if (*PL_tokenbuf) { | |
5585 | PL_expect = XOPERATOR; | |
5586 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 5587 | } |
79072805 LW |
5588 | else |
5589 | PREREF('&'); | |
6154021b | 5590 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
5591 | TERM('&'); |
5592 | ||
378cc40b LW |
5593 | case '|': |
5594 | s++; | |
90771dc0 | 5595 | if (*s++ == '|') |
a0d0e21e | 5596 | AOPERATOR(OROR); |
378cc40b | 5597 | s--; |
79072805 | 5598 | BOop(OP_BIT_OR); |
378cc40b LW |
5599 | case '=': |
5600 | s++; | |
748a9306 | 5601 | { |
90771dc0 NC |
5602 | const char tmp = *s++; |
5603 | if (tmp == '=') | |
5604 | Eop(OP_EQ); | |
5605 | if (tmp == '>') | |
5606 | OPERATOR(','); | |
5607 | if (tmp == '~') | |
5608 | PMop(OP_MATCH); | |
5609 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
5610 | && strchr("+-*/%.^&|<",tmp)) | |
5611 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5612 | "Reversed %c= operator",(int)tmp); | |
5613 | s--; | |
5614 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
5615 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
5616 | { | |
5617 | if (PL_in_eval && !PL_rsfp) { | |
5618 | d = PL_bufend; | |
5619 | while (s < d) { | |
5620 | if (*s++ == '\n') { | |
5621 | incline(s); | |
5622 | if (strnEQ(s,"=cut",4)) { | |
5623 | s = strchr(s,'\n'); | |
5624 | if (s) | |
5625 | s++; | |
5626 | else | |
5627 | s = d; | |
5628 | incline(s); | |
5629 | goto retry; | |
5630 | } | |
5631 | } | |
a5f75d66 | 5632 | } |
90771dc0 | 5633 | goto retry; |
a5f75d66 | 5634 | } |
5db06880 NC |
5635 | #ifdef PERL_MAD |
5636 | if (PL_madskills) { | |
cd81e915 | 5637 | if (!PL_thiswhite) |
6b29d1f5 | 5638 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 5639 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
5640 | PL_bufend - PL_linestart); |
5641 | } | |
5642 | #endif | |
90771dc0 NC |
5643 | s = PL_bufend; |
5644 | PL_doextract = TRUE; | |
5645 | goto retry; | |
a5f75d66 | 5646 | } |
a0d0e21e | 5647 | } |
3280af22 | 5648 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 5649 | const char *t = s; |
51882d45 | 5650 | #ifdef PERL_STRICT_CR |
c35e046a | 5651 | while (SPACE_OR_TAB(*t)) |
51882d45 | 5652 | #else |
c35e046a | 5653 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 5654 | #endif |
c35e046a | 5655 | t++; |
a0d0e21e LW |
5656 | if (*t == '\n' || *t == '#') { |
5657 | s--; | |
3280af22 | 5658 | PL_expect = XBLOCK; |
a0d0e21e LW |
5659 | goto leftbracket; |
5660 | } | |
79072805 | 5661 | } |
6154021b | 5662 | pl_yylval.ival = 0; |
a0d0e21e | 5663 | OPERATOR(ASSIGNOP); |
378cc40b LW |
5664 | case '!': |
5665 | s++; | |
90771dc0 NC |
5666 | { |
5667 | const char tmp = *s++; | |
5668 | if (tmp == '=') { | |
5669 | /* was this !=~ where !~ was meant? | |
5670 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
5671 | ||
5672 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
5673 | const char *t = s+1; | |
5674 | ||
5675 | while (t < PL_bufend && isSPACE(*t)) | |
5676 | ++t; | |
5677 | ||
5678 | if (*t == '/' || *t == '?' || | |
5679 | ((*t == 'm' || *t == 's' || *t == 'y') | |
5680 | && !isALNUM(t[1])) || | |
5681 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
5682 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5683 | "!=~ should be !~"); | |
5684 | } | |
5685 | Eop(OP_NE); | |
5686 | } | |
5687 | if (tmp == '~') | |
5688 | PMop(OP_NOT); | |
5689 | } | |
378cc40b LW |
5690 | s--; |
5691 | OPERATOR('!'); | |
5692 | case '<': | |
3280af22 | 5693 | if (PL_expect != XOPERATOR) { |
93a17b20 | 5694 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 5695 | check_uni(); |
79072805 LW |
5696 | if (s[1] == '<') |
5697 | s = scan_heredoc(s); | |
5698 | else | |
5699 | s = scan_inputsymbol(s); | |
5700 | TERM(sublex_start()); | |
378cc40b LW |
5701 | } |
5702 | s++; | |
90771dc0 NC |
5703 | { |
5704 | char tmp = *s++; | |
5705 | if (tmp == '<') | |
5706 | SHop(OP_LEFT_SHIFT); | |
5707 | if (tmp == '=') { | |
5708 | tmp = *s++; | |
5709 | if (tmp == '>') | |
5710 | Eop(OP_NCMP); | |
5711 | s--; | |
5712 | Rop(OP_LE); | |
5713 | } | |
395c3793 | 5714 | } |
378cc40b | 5715 | s--; |
79072805 | 5716 | Rop(OP_LT); |
378cc40b LW |
5717 | case '>': |
5718 | s++; | |
90771dc0 NC |
5719 | { |
5720 | const char tmp = *s++; | |
5721 | if (tmp == '>') | |
5722 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 5723 | else if (tmp == '=') |
90771dc0 NC |
5724 | Rop(OP_GE); |
5725 | } | |
378cc40b | 5726 | s--; |
79072805 | 5727 | Rop(OP_GT); |
378cc40b LW |
5728 | |
5729 | case '$': | |
bbce6d69 | 5730 | CLINE; |
5731 | ||
3280af22 NIS |
5732 | if (PL_expect == XOPERATOR) { |
5733 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5734 | return deprecate_commaless_var_list(); |
a0d0e21e | 5735 | } |
8990e307 | 5736 | } |
a0d0e21e | 5737 | |
c0b977fd | 5738 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-@", s[2]))) { |
3280af22 | 5739 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
5740 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
5741 | sizeof PL_tokenbuf - 1, FALSE); | |
5742 | if (PL_expect == XOPERATOR) | |
5743 | no_op("Array length", s); | |
3280af22 | 5744 | if (!PL_tokenbuf[1]) |
a0d0e21e | 5745 | PREREF(DOLSHARP); |
3280af22 NIS |
5746 | PL_expect = XOPERATOR; |
5747 | PL_pending_ident = '#'; | |
463ee0b2 | 5748 | TOKEN(DOLSHARP); |
79072805 | 5749 | } |
bbce6d69 | 5750 | |
3280af22 | 5751 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
5752 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
5753 | sizeof PL_tokenbuf - 1, FALSE); | |
5754 | if (PL_expect == XOPERATOR) | |
5755 | no_op("Scalar", s); | |
3280af22 NIS |
5756 | if (!PL_tokenbuf[1]) { |
5757 | if (s == PL_bufend) | |
bbce6d69 | 5758 | yyerror("Final $ should be \\$ or $name"); |
5759 | PREREF('$'); | |
8990e307 | 5760 | } |
a0d0e21e | 5761 | |
bbce6d69 | 5762 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 5763 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 5764 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 5765 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 5766 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 5767 | TERM(THING); |
5768 | } | |
5769 | ||
ff68c719 | 5770 | d = s; |
90771dc0 NC |
5771 | { |
5772 | const char tmp = *s; | |
ae28bb2a | 5773 | if (PL_lex_state == LEX_NORMAL || PL_lex_brackets) |
29595ff2 | 5774 | s = SKIPSPACE1(s); |
ff68c719 | 5775 | |
90771dc0 NC |
5776 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
5777 | && intuit_more(s)) { | |
5778 | if (*s == '[') { | |
5779 | PL_tokenbuf[0] = '@'; | |
5780 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
5781 | char *t = s+1; |
5782 | ||
5783 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
5784 | t++; | |
90771dc0 | 5785 | if (*t++ == ',') { |
29595ff2 | 5786 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
5787 | while (t < PL_bufend && *t != ']') |
5788 | t++; | |
9014280d | 5789 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 5790 | "Multidimensional syntax %.*s not supported", |
36c7798d | 5791 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 5792 | } |
748a9306 | 5793 | } |
93a17b20 | 5794 | } |
90771dc0 NC |
5795 | else if (*s == '{') { |
5796 | char *t; | |
5797 | PL_tokenbuf[0] = '%'; | |
5798 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
5799 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
5800 | { | |
5801 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
5802 | do { |
5803 | t++; | |
5804 | } while (isSPACE(*t)); | |
90771dc0 | 5805 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 5806 | STRLEN len; |
90771dc0 | 5807 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 5808 | &len); |
c35e046a AL |
5809 | while (isSPACE(*t)) |
5810 | t++; | |
780a5241 | 5811 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
5812 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
5813 | "You need to quote \"%s\"", | |
5814 | tmpbuf); | |
5815 | } | |
5816 | } | |
5817 | } | |
93a17b20 | 5818 | } |
bbce6d69 | 5819 | |
90771dc0 NC |
5820 | PL_expect = XOPERATOR; |
5821 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
5822 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
5823 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
5824 | PL_expect = XOPERATOR; | |
5825 | else if (strchr("$@\"'`q", *s)) | |
5826 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
5827 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
5828 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
5829 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
5830 | char tmpbuf[sizeof PL_tokenbuf]; | |
5831 | int t2; | |
5832 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 5833 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
5834 | /* binary operators exclude handle interpretations */ |
5835 | switch (t2) { | |
5836 | case -KEY_x: | |
5837 | case -KEY_eq: | |
5838 | case -KEY_ne: | |
5839 | case -KEY_gt: | |
5840 | case -KEY_lt: | |
5841 | case -KEY_ge: | |
5842 | case -KEY_le: | |
5843 | case -KEY_cmp: | |
5844 | break; | |
5845 | default: | |
5846 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
5847 | break; | |
5848 | } | |
5849 | } | |
5850 | else { | |
5851 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
5852 | } |
5853 | } | |
90771dc0 NC |
5854 | else if (isDIGIT(*s)) |
5855 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
5856 | else if (*s == '.' && isDIGIT(s[1])) | |
5857 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
5858 | else if ((*s == '?' || *s == '-' || *s == '+') | |
5859 | && !isSPACE(s[1]) && s[1] != '=') | |
5860 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
5861 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
5862 | && s[1] != '/') | |
5863 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
5864 | XXX except DORDOR operator | |
5865 | */ | |
5866 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
5867 | && s[2] != '=') | |
5868 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 5869 | } |
bbce6d69 | 5870 | } |
3280af22 | 5871 | PL_pending_ident = '$'; |
79072805 | 5872 | TOKEN('$'); |
378cc40b LW |
5873 | |
5874 | case '@': | |
3280af22 | 5875 | if (PL_expect == XOPERATOR) |
bbce6d69 | 5876 | no_op("Array", s); |
3280af22 NIS |
5877 | PL_tokenbuf[0] = '@'; |
5878 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
5879 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 5880 | PREREF('@'); |
5881 | } | |
3280af22 | 5882 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 5883 | s = SKIPSPACE1(s); |
3280af22 | 5884 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 5885 | if (*s == '{') |
3280af22 | 5886 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
5887 | |
5888 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
5889 | if (*s == '[' || *s == '{') { |
5890 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 5891 | const char *t = s + 1; |
7e2040f0 | 5892 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
5893 | t++; |
5894 | if (*t == '}' || *t == ']') { | |
5895 | t++; | |
29595ff2 | 5896 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 5897 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 5898 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
5899 | (int)(t-PL_bufptr), PL_bufptr, |
5900 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 5901 | } |
93a17b20 LW |
5902 | } |
5903 | } | |
463ee0b2 | 5904 | } |
3280af22 | 5905 | PL_pending_ident = '@'; |
79072805 | 5906 | TERM('@'); |
378cc40b | 5907 | |
c963b151 | 5908 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
5909 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
5910 | s += 2; | |
5911 | AOPERATOR(DORDOR); | |
5912 | } | |
c963b151 | 5913 | case '?': /* may either be conditional or pattern */ |
be25f609 | 5914 | if (PL_expect == XOPERATOR) { |
90771dc0 | 5915 | char tmp = *s++; |
c963b151 | 5916 | if(tmp == '?') { |
be25f609 | 5917 | OPERATOR('?'); |
c963b151 BD |
5918 | } |
5919 | else { | |
5920 | tmp = *s++; | |
5921 | if(tmp == '/') { | |
5922 | /* A // operator. */ | |
5923 | AOPERATOR(DORDOR); | |
5924 | } | |
5925 | else { | |
5926 | s--; | |
5927 | Mop(OP_DIVIDE); | |
5928 | } | |
5929 | } | |
5930 | } | |
5931 | else { | |
5932 | /* Disable warning on "study /blah/" */ | |
5933 | if (PL_oldoldbufptr == PL_last_uni | |
5934 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
5935 | || memNE(PL_last_uni, "study", 5) | |
5936 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
5937 | )) | |
5938 | check_uni(); | |
5939 | s = scan_pat(s,OP_MATCH); | |
5940 | TERM(sublex_start()); | |
5941 | } | |
378cc40b LW |
5942 | |
5943 | case '.': | |
51882d45 GS |
5944 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
5945 | #ifdef PERL_STRICT_CR | |
5946 | && s[1] == '\n' | |
5947 | #else | |
5948 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
5949 | #endif | |
5950 | && (s == PL_linestart || s[-1] == '\n') ) | |
5951 | { | |
3280af22 NIS |
5952 | PL_lex_formbrack = 0; |
5953 | PL_expect = XSTATE; | |
79072805 LW |
5954 | goto rightbracket; |
5955 | } | |
be25f609 | 5956 | if (PL_expect == XSTATE && s[1] == '.' && s[2] == '.') { |
5957 | s += 3; | |
5958 | OPERATOR(YADAYADA); | |
5959 | } | |
3280af22 | 5960 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5961 | char tmp = *s++; |
a687059c LW |
5962 | if (*s == tmp) { |
5963 | s++; | |
2f3197b3 LW |
5964 | if (*s == tmp) { |
5965 | s++; | |
6154021b | 5966 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5967 | } |
5968 | else | |
6154021b | 5969 | pl_yylval.ival = 0; |
378cc40b | 5970 | OPERATOR(DOTDOT); |
a687059c | 5971 | } |
79072805 | 5972 | Aop(OP_CONCAT); |
378cc40b LW |
5973 | } |
5974 | /* FALL THROUGH */ | |
5975 | case '0': case '1': case '2': case '3': case '4': | |
5976 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5977 | s = scan_num(s, &pl_yylval); |
931e0695 | 5978 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5979 | if (PL_expect == XOPERATOR) |
8990e307 | 5980 | no_op("Number",s); |
79072805 LW |
5981 | TERM(THING); |
5982 | ||
5983 | case '\'': | |
5db06880 | 5984 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5985 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5986 | if (PL_expect == XOPERATOR) { |
5987 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5988 | return deprecate_commaless_var_list(); |
a0d0e21e | 5989 | } |
463ee0b2 | 5990 | else |
8990e307 | 5991 | no_op("String",s); |
463ee0b2 | 5992 | } |
79072805 | 5993 | if (!s) |
d4c19fe8 | 5994 | missingterm(NULL); |
6154021b | 5995 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5996 | TERM(sublex_start()); |
5997 | ||
5998 | case '"': | |
5db06880 | 5999 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 6000 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
6001 | if (PL_expect == XOPERATOR) { |
6002 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 6003 | return deprecate_commaless_var_list(); |
a0d0e21e | 6004 | } |
463ee0b2 | 6005 | else |
8990e307 | 6006 | no_op("String",s); |
463ee0b2 | 6007 | } |
79072805 | 6008 | if (!s) |
d4c19fe8 | 6009 | missingterm(NULL); |
6154021b | 6010 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
6011 | /* FIXME. I think that this can be const if char *d is replaced by |
6012 | more localised variables. */ | |
3280af22 | 6013 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 6014 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 6015 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
6016 | break; |
6017 | } | |
6018 | } | |
79072805 LW |
6019 | TERM(sublex_start()); |
6020 | ||
6021 | case '`': | |
5db06880 | 6022 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 6023 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 6024 | if (PL_expect == XOPERATOR) |
8990e307 | 6025 | no_op("Backticks",s); |
79072805 | 6026 | if (!s) |
d4c19fe8 | 6027 | missingterm(NULL); |
9b201d7d | 6028 | readpipe_override(); |
79072805 LW |
6029 | TERM(sublex_start()); |
6030 | ||
6031 | case '\\': | |
6032 | s++; | |
a2a5de95 NC |
6033 | if (PL_lex_inwhat && isDIGIT(*s)) |
6034 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", | |
6035 | *s, *s); | |
3280af22 | 6036 | if (PL_expect == XOPERATOR) |
8990e307 | 6037 | no_op("Backslash",s); |
79072805 LW |
6038 | OPERATOR(REFGEN); |
6039 | ||
a7cb1f99 | 6040 | case 'v': |
e526c9e6 | 6041 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 6042 | char *start = s + 2; |
dd629d5b | 6043 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
6044 | start++; |
6045 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 6046 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
6047 | TERM(THING); |
6048 | } | |
e526c9e6 | 6049 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
6050 | else if (!isALPHA(*start) && (PL_expect == XTERM |
6051 | || PL_expect == XREF || PL_expect == XSTATE | |
6052 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 6053 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 6054 | if (!gv) { |
6154021b | 6055 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
6056 | TERM(THING); |
6057 | } | |
6058 | } | |
a7cb1f99 GS |
6059 | } |
6060 | goto keylookup; | |
79072805 | 6061 | case 'x': |
3280af22 | 6062 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
6063 | s++; |
6064 | Mop(OP_REPEAT); | |
2f3197b3 | 6065 | } |
79072805 LW |
6066 | goto keylookup; |
6067 | ||
378cc40b | 6068 | case '_': |
79072805 LW |
6069 | case 'a': case 'A': |
6070 | case 'b': case 'B': | |
6071 | case 'c': case 'C': | |
6072 | case 'd': case 'D': | |
6073 | case 'e': case 'E': | |
6074 | case 'f': case 'F': | |
6075 | case 'g': case 'G': | |
6076 | case 'h': case 'H': | |
6077 | case 'i': case 'I': | |
6078 | case 'j': case 'J': | |
6079 | case 'k': case 'K': | |
6080 | case 'l': case 'L': | |
6081 | case 'm': case 'M': | |
6082 | case 'n': case 'N': | |
6083 | case 'o': case 'O': | |
6084 | case 'p': case 'P': | |
6085 | case 'q': case 'Q': | |
6086 | case 'r': case 'R': | |
6087 | case 's': case 'S': | |
6088 | case 't': case 'T': | |
6089 | case 'u': case 'U': | |
a7cb1f99 | 6090 | case 'V': |
79072805 LW |
6091 | case 'w': case 'W': |
6092 | case 'X': | |
6093 | case 'y': case 'Y': | |
6094 | case 'z': case 'Z': | |
6095 | ||
49dc05e3 | 6096 | keylookup: { |
88e1f1a2 | 6097 | bool anydelim; |
90771dc0 | 6098 | I32 tmp; |
10edeb5d JH |
6099 | |
6100 | orig_keyword = 0; | |
6101 | gv = NULL; | |
6102 | gvp = NULL; | |
49dc05e3 | 6103 | |
3280af22 NIS |
6104 | PL_bufptr = s; |
6105 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 6106 | |
6107 | /* Some keywords can be followed by any delimiter, including ':' */ | |
88e1f1a2 | 6108 | anydelim = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
155aba94 GS |
6109 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || |
6110 | (PL_tokenbuf[0] == 'q' && | |
6111 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 6112 | |
6113 | /* x::* is just a word, unless x is "CORE" */ | |
88e1f1a2 | 6114 | if (!anydelim && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
6115 | goto just_a_word; |
6116 | ||
3643fb5f | 6117 | d = s; |
3280af22 | 6118 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
6119 | d++; /* no comments skipped here, or s### is misparsed */ |
6120 | ||
748a9306 | 6121 | /* Is this a word before a => operator? */ |
1c3923b3 | 6122 | if (*d == '=' && d[1] == '>') { |
748a9306 | 6123 | CLINE; |
6154021b | 6124 | pl_yylval.opval |
d0a148a6 NC |
6125 | = (OP*)newSVOP(OP_CONST, 0, |
6126 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 6127 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
6128 | TERM(WORD); |
6129 | } | |
6130 | ||
88e1f1a2 JV |
6131 | /* Check for plugged-in keyword */ |
6132 | { | |
6133 | OP *o; | |
6134 | int result; | |
6135 | char *saved_bufptr = PL_bufptr; | |
6136 | PL_bufptr = s; | |
16c91539 | 6137 | result = PL_keyword_plugin(aTHX_ PL_tokenbuf, len, &o); |
88e1f1a2 JV |
6138 | s = PL_bufptr; |
6139 | if (result == KEYWORD_PLUGIN_DECLINE) { | |
6140 | /* not a plugged-in keyword */ | |
6141 | PL_bufptr = saved_bufptr; | |
6142 | } else if (result == KEYWORD_PLUGIN_STMT) { | |
6143 | pl_yylval.opval = o; | |
6144 | CLINE; | |
6145 | PL_expect = XSTATE; | |
6146 | return REPORT(PLUGSTMT); | |
6147 | } else if (result == KEYWORD_PLUGIN_EXPR) { | |
6148 | pl_yylval.opval = o; | |
6149 | CLINE; | |
6150 | PL_expect = XOPERATOR; | |
6151 | return REPORT(PLUGEXPR); | |
6152 | } else { | |
6153 | Perl_croak(aTHX_ "Bad plugin affecting keyword '%s'", | |
6154 | PL_tokenbuf); | |
6155 | } | |
6156 | } | |
6157 | ||
6158 | /* Check for built-in keyword */ | |
6159 | tmp = keyword(PL_tokenbuf, len, 0); | |
6160 | ||
6161 | /* Is this a label? */ | |
6162 | if (!anydelim && PL_expect == XSTATE | |
6163 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
88e1f1a2 JV |
6164 | s = d + 1; |
6165 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); | |
6166 | CLINE; | |
6167 | TOKEN(LABEL); | |
6168 | } | |
6169 | ||
a0d0e21e | 6170 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
6171 | GV *ogv = NULL; /* override (winner) */ |
6172 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 6173 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 6174 | CV *cv; |
90e5519e | 6175 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
6176 | (cv = GvCVu(gv))) |
6177 | { | |
6178 | if (GvIMPORTED_CV(gv)) | |
6179 | ogv = gv; | |
6180 | else if (! CvMETHOD(cv)) | |
6181 | hgv = gv; | |
6182 | } | |
6183 | if (!ogv && | |
3280af22 | 6184 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 6185 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
6186 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
6187 | { | |
6188 | ogv = gv; | |
6189 | } | |
6190 | } | |
6191 | if (ogv) { | |
30fe34ed | 6192 | orig_keyword = tmp; |
56f7f34b | 6193 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
6194 | } |
6195 | else if (gv && !gvp | |
6196 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 6197 | && GvCVu(gv)) |
6e7b2336 GS |
6198 | { |
6199 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 6200 | } |
56f7f34b CS |
6201 | else { /* no override */ |
6202 | tmp = -tmp; | |
a2a5de95 NC |
6203 | if (tmp == KEY_dump) { |
6204 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
6205 | "dump() better written as CORE::dump()"); | |
ac206dc8 | 6206 | } |
a0714e2c | 6207 | gv = NULL; |
56f7f34b | 6208 | gvp = 0; |
a2a5de95 NC |
6209 | if (hgv && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */ |
6210 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
de2b151d JM |
6211 | "Ambiguous call resolved as CORE::%s(), " |
6212 | "qualify as such or use &", | |
6213 | GvENAME(hgv)); | |
49dc05e3 | 6214 | } |
a0d0e21e LW |
6215 | } |
6216 | ||
6217 | reserved_word: | |
6218 | switch (tmp) { | |
79072805 LW |
6219 | |
6220 | default: /* not a keyword */ | |
0bfa2a8a NC |
6221 | /* Trade off - by using this evil construction we can pull the |
6222 | variable gv into the block labelled keylookup. If not, then | |
6223 | we have to give it function scope so that the goto from the | |
6224 | earlier ':' case doesn't bypass the initialisation. */ | |
6225 | if (0) { | |
6226 | just_a_word_zero_gv: | |
6227 | gv = NULL; | |
6228 | gvp = NULL; | |
8bee0991 | 6229 | orig_keyword = 0; |
0bfa2a8a | 6230 | } |
93a17b20 | 6231 | just_a_word: { |
96e4d5b1 | 6232 | SV *sv; |
ce29ac45 | 6233 | int pkgname = 0; |
f54cb97a | 6234 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
f7461760 | 6235 | OP *rv2cv_op; |
5069cc75 | 6236 | CV *cv; |
5db06880 | 6237 | #ifdef PERL_MAD |
cd81e915 | 6238 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
6239 | #endif |
6240 | ||
8990e307 LW |
6241 | |
6242 | /* Get the rest if it looks like a package qualifier */ | |
6243 | ||
155aba94 | 6244 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 6245 | STRLEN morelen; |
3280af22 | 6246 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
6247 | TRUE, &morelen); |
6248 | if (!morelen) | |
cea2e8a9 | 6249 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 6250 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 6251 | len += morelen; |
ce29ac45 | 6252 | pkgname = 1; |
a0d0e21e | 6253 | } |
8990e307 | 6254 | |
3280af22 NIS |
6255 | if (PL_expect == XOPERATOR) { |
6256 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 6257 | CopLINE_dec(PL_curcop); |
f1f66076 | 6258 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 6259 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
6260 | } |
6261 | else | |
54310121 | 6262 | no_op("Bareword",s); |
463ee0b2 | 6263 | } |
8990e307 | 6264 | |
c3e0f903 GS |
6265 | /* Look for a subroutine with this name in current package, |
6266 | unless name is "Foo::", in which case Foo is a bearword | |
6267 | (and a package name). */ | |
6268 | ||
5db06880 | 6269 | if (len > 2 && !PL_madskills && |
3280af22 | 6270 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 6271 | { |
f776e3cd | 6272 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 6273 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 6274 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 6275 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 6276 | PL_tokenbuf); |
c3e0f903 | 6277 | len -= 2; |
3280af22 | 6278 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 6279 | gv = NULL; |
c3e0f903 GS |
6280 | gvp = 0; |
6281 | } | |
6282 | else { | |
62d55b22 NC |
6283 | if (!gv) { |
6284 | /* Mustn't actually add anything to a symbol table. | |
6285 | But also don't want to "initialise" any placeholder | |
6286 | constants that might already be there into full | |
6287 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
6288 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
6289 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 6290 | } |
b3d904f3 | 6291 | len = 0; |
c3e0f903 GS |
6292 | } |
6293 | ||
6294 | /* if we saw a global override before, get the right name */ | |
8990e307 | 6295 | |
37bb7629 EB |
6296 | sv = S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, |
6297 | len ? len : strlen(PL_tokenbuf)); | |
49dc05e3 | 6298 | if (gvp) { |
37bb7629 | 6299 | SV * const tmp_sv = sv; |
396482e1 | 6300 | sv = newSVpvs("CORE::GLOBAL::"); |
37bb7629 EB |
6301 | sv_catsv(sv, tmp_sv); |
6302 | SvREFCNT_dec(tmp_sv); | |
8a7a129d | 6303 | } |
37bb7629 | 6304 | |
5db06880 | 6305 | #ifdef PERL_MAD |
cd81e915 NC |
6306 | if (PL_madskills && !PL_thistoken) { |
6307 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 6308 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 6309 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
6310 | } |
6311 | #endif | |
8990e307 | 6312 | |
a0d0e21e | 6313 | /* Presume this is going to be a bareword of some sort. */ |
a0d0e21e | 6314 | CLINE; |
6154021b RGS |
6315 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
6316 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
a0d0e21e | 6317 | |
c3e0f903 | 6318 | /* And if "Foo::", then that's what it certainly is. */ |
c3e0f903 GS |
6319 | if (len) |
6320 | goto safe_bareword; | |
6321 | ||
f7461760 Z |
6322 | cv = NULL; |
6323 | { | |
6324 | OP *const_op = newSVOP(OP_CONST, 0, SvREFCNT_inc(sv)); | |
6325 | const_op->op_private = OPpCONST_BARE; | |
6326 | rv2cv_op = newCVREF(0, const_op); | |
6327 | } | |
6328 | if (rv2cv_op->op_type == OP_RV2CV && | |
6329 | (rv2cv_op->op_flags & OPf_KIDS)) { | |
6330 | OP *rv_op = cUNOPx(rv2cv_op)->op_first; | |
6331 | switch (rv_op->op_type) { | |
6332 | case OP_CONST: { | |
6333 | SV *sv = cSVOPx_sv(rv_op); | |
6334 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) | |
6335 | cv = (CV*)SvRV(sv); | |
6336 | } break; | |
6337 | case OP_GV: { | |
6338 | GV *gv = cGVOPx_gv(rv_op); | |
6339 | CV *maybe_cv = GvCVu(gv); | |
6340 | if (maybe_cv && SvTYPE((SV*)maybe_cv) == SVt_PVCV) | |
6341 | cv = maybe_cv; | |
6342 | } break; | |
6343 | } | |
6344 | } | |
5069cc75 | 6345 | |
8990e307 LW |
6346 | /* See if it's the indirect object for a list operator. */ |
6347 | ||
3280af22 NIS |
6348 | if (PL_oldoldbufptr && |
6349 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
6350 | (PL_oldoldbufptr == PL_last_lop |
6351 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 6352 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
6353 | (PL_expect == XREF || |
6354 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 6355 | { |
748a9306 LW |
6356 | bool immediate_paren = *s == '('; |
6357 | ||
a0d0e21e | 6358 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 6359 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 6360 | #ifdef PERL_MAD |
cd81e915 | 6361 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 6362 | #endif |
a0d0e21e LW |
6363 | |
6364 | /* Two barewords in a row may indicate method call. */ | |
6365 | ||
62d55b22 | 6366 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
f7461760 Z |
6367 | (tmp = intuit_method(s, gv, cv))) { |
6368 | op_free(rv2cv_op); | |
bbf60fe6 | 6369 | return REPORT(tmp); |
f7461760 | 6370 | } |
a0d0e21e LW |
6371 | |
6372 | /* If not a declared subroutine, it's an indirect object. */ | |
6373 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 6374 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 6375 | |
7294df96 RGS |
6376 | if ( |
6377 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
f7461760 | 6378 | (!cv && |
a9ef352a | 6379 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 6380 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
6381 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
6382 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
6383 | ) | |
a9ef352a | 6384 | { |
3280af22 | 6385 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 6386 | goto bareword; |
93a17b20 LW |
6387 | } |
6388 | } | |
8990e307 | 6389 | |
3280af22 | 6390 | PL_expect = XOPERATOR; |
5db06880 NC |
6391 | #ifdef PERL_MAD |
6392 | if (isSPACE(*s)) | |
cd81e915 NC |
6393 | s = SKIPSPACE2(s,nextPL_nextwhite); |
6394 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 6395 | #else |
8990e307 | 6396 | s = skipspace(s); |
5db06880 | 6397 | #endif |
1c3923b3 GS |
6398 | |
6399 | /* Is this a word before a => operator? */ | |
ce29ac45 | 6400 | if (*s == '=' && s[1] == '>' && !pkgname) { |
f7461760 | 6401 | op_free(rv2cv_op); |
1c3923b3 | 6402 | CLINE; |
6154021b | 6403 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 6404 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 6405 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
6406 | TERM(WORD); |
6407 | } | |
6408 | ||
6409 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 6410 | if (*s == '(') { |
79072805 | 6411 | CLINE; |
5069cc75 | 6412 | if (cv) { |
c35e046a AL |
6413 | d = s + 1; |
6414 | while (SPACE_OR_TAB(*d)) | |
6415 | d++; | |
f7461760 | 6416 | if (*d == ')' && (sv = cv_const_sv(cv))) { |
96e4d5b1 | 6417 | s = d + 1; |
c631f32b | 6418 | goto its_constant; |
96e4d5b1 | 6419 | } |
6420 | } | |
5db06880 NC |
6421 | #ifdef PERL_MAD |
6422 | if (PL_madskills) { | |
cd81e915 NC |
6423 | PL_nextwhite = PL_thiswhite; |
6424 | PL_thiswhite = 0; | |
5db06880 | 6425 | } |
cd81e915 | 6426 | start_force(PL_curforce); |
5db06880 | 6427 | #endif |
6154021b | 6428 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6429 | PL_expect = XOPERATOR; |
5db06880 NC |
6430 | #ifdef PERL_MAD |
6431 | if (PL_madskills) { | |
cd81e915 NC |
6432 | PL_nextwhite = nextPL_nextwhite; |
6433 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6434 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6435 | } |
6436 | #endif | |
f7461760 | 6437 | op_free(rv2cv_op); |
93a17b20 | 6438 | force_next(WORD); |
6154021b | 6439 | pl_yylval.ival = 0; |
463ee0b2 | 6440 | TOKEN('&'); |
79072805 | 6441 | } |
93a17b20 | 6442 | |
a0d0e21e | 6443 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 6444 | |
f7461760 Z |
6445 | if ((*s == '$' || *s == '{') && !cv) { |
6446 | op_free(rv2cv_op); | |
3280af22 NIS |
6447 | PL_last_lop = PL_oldbufptr; |
6448 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 6449 | PREBLOCK(METHOD); |
463ee0b2 LW |
6450 | } |
6451 | ||
8990e307 LW |
6452 | /* If followed by a bareword, see if it looks like indir obj. */ |
6453 | ||
30fe34ed RGS |
6454 | if (!orig_keyword |
6455 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
f7461760 Z |
6456 | && (tmp = intuit_method(s, gv, cv))) { |
6457 | op_free(rv2cv_op); | |
bbf60fe6 | 6458 | return REPORT(tmp); |
f7461760 | 6459 | } |
93a17b20 | 6460 | |
8990e307 LW |
6461 | /* Not a method, so call it a subroutine (if defined) */ |
6462 | ||
5069cc75 | 6463 | if (cv) { |
9b387841 NC |
6464 | if (lastchar == '-') |
6465 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6466 | "Ambiguous use of -%s resolved as -&%s()", | |
6467 | PL_tokenbuf, PL_tokenbuf); | |
89bfa8cd | 6468 | /* Check for a constant sub */ |
f7461760 | 6469 | if ((sv = cv_const_sv(cv))) { |
96e4d5b1 | 6470 | its_constant: |
f7461760 | 6471 | op_free(rv2cv_op); |
6154021b RGS |
6472 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
6473 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
6474 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 6475 | TOKEN(WORD); |
89bfa8cd | 6476 | } |
6477 | ||
6154021b | 6478 | op_free(pl_yylval.opval); |
f7461760 | 6479 | pl_yylval.opval = rv2cv_op; |
6154021b | 6480 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 6481 | PL_last_lop = PL_oldbufptr; |
bf848113 | 6482 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 6483 | /* Is there a prototype? */ |
5db06880 NC |
6484 | if ( |
6485 | #ifdef PERL_MAD | |
6486 | cv && | |
6487 | #endif | |
d9f2850e RGS |
6488 | SvPOK(cv)) |
6489 | { | |
5f66b61c | 6490 | STRLEN protolen; |
daba3364 | 6491 | const char *proto = SvPV_const(MUTABLE_SV(cv), protolen); |
5f66b61c | 6492 | if (!protolen) |
4633a7c4 | 6493 | TERM(FUNC0SUB); |
0f5d0394 AE |
6494 | while (*proto == ';') |
6495 | proto++; | |
649d02de FC |
6496 | if ( |
6497 | ( | |
6498 | ( | |
6499 | *proto == '$' || *proto == '_' | |
6500 | || *proto == '*' | |
6501 | ) | |
6502 | && proto[1] == '\0' | |
6503 | ) | |
6504 | || ( | |
6505 | *proto == '\\' && proto[1] && proto[2] == '\0' | |
6506 | ) | |
6507 | ) | |
6508 | OPERATOR(UNIOPSUB); | |
6509 | if (*proto == '\\' && proto[1] == '[') { | |
6510 | const char *p = proto + 2; | |
6511 | while(*p && *p != ']') | |
6512 | ++p; | |
6513 | if(*p == ']' && !p[1]) OPERATOR(UNIOPSUB); | |
6514 | } | |
7a52d87a | 6515 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
6516 | if (PL_curstash) |
6517 | sv_setpvs(PL_subname, "__ANON__"); | |
6518 | else | |
6519 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
6520 | PREBLOCK(LSTOPSUB); |
6521 | } | |
a9ef352a | 6522 | } |
5db06880 NC |
6523 | #ifdef PERL_MAD |
6524 | { | |
6525 | if (PL_madskills) { | |
cd81e915 NC |
6526 | PL_nextwhite = PL_thiswhite; |
6527 | PL_thiswhite = 0; | |
5db06880 | 6528 | } |
cd81e915 | 6529 | start_force(PL_curforce); |
6154021b | 6530 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
6531 | PL_expect = XTERM; |
6532 | if (PL_madskills) { | |
cd81e915 NC |
6533 | PL_nextwhite = nextPL_nextwhite; |
6534 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6535 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6536 | } |
6537 | force_next(WORD); | |
6538 | TOKEN(NOAMP); | |
6539 | } | |
6540 | } | |
6541 | ||
6542 | /* Guess harder when madskills require "best effort". */ | |
6543 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
6544 | int probable_sub = 0; | |
6545 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
6546 | probable_sub = 1; | |
6547 | else if (isALPHA(*s)) { | |
6548 | char tmpbuf[1024]; | |
6549 | STRLEN tmplen; | |
6550 | d = s; | |
6551 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 6552 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
6553 | probable_sub = 1; |
6554 | else { | |
6555 | while (d < PL_bufend && isSPACE(*d)) | |
6556 | d++; | |
6557 | if (*d == '=' && d[1] == '>') | |
6558 | probable_sub = 1; | |
6559 | } | |
6560 | } | |
6561 | if (probable_sub) { | |
7a6d04f4 | 6562 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b | 6563 | op_free(pl_yylval.opval); |
f7461760 | 6564 | pl_yylval.opval = rv2cv_op; |
6154021b | 6565 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
5db06880 NC |
6566 | PL_last_lop = PL_oldbufptr; |
6567 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
6568 | PL_nextwhite = PL_thiswhite; |
6569 | PL_thiswhite = 0; | |
6570 | start_force(PL_curforce); | |
6154021b | 6571 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 6572 | PL_expect = XTERM; |
cd81e915 NC |
6573 | PL_nextwhite = nextPL_nextwhite; |
6574 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6575 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6576 | force_next(WORD); |
6577 | TOKEN(NOAMP); | |
6578 | } | |
6579 | #else | |
6154021b | 6580 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6581 | PL_expect = XTERM; |
8990e307 LW |
6582 | force_next(WORD); |
6583 | TOKEN(NOAMP); | |
5db06880 | 6584 | #endif |
8990e307 | 6585 | } |
748a9306 | 6586 | |
8990e307 LW |
6587 | /* Call it a bare word */ |
6588 | ||
5603f27d | 6589 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 6590 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d | 6591 | else { |
9a073a1d RGS |
6592 | bareword: |
6593 | /* after "print" and similar functions (corresponding to | |
6594 | * "F? L" in opcode.pl), whatever wasn't already parsed as | |
6595 | * a filehandle should be subject to "strict subs". | |
6596 | * Likewise for the optional indirect-object argument to system | |
6597 | * or exec, which can't be a bareword */ | |
6598 | if ((PL_last_lop_op == OP_PRINT | |
6599 | || PL_last_lop_op == OP_PRTF | |
6600 | || PL_last_lop_op == OP_SAY | |
6601 | || PL_last_lop_op == OP_SYSTEM | |
6602 | || PL_last_lop_op == OP_EXEC) | |
6603 | && (PL_hints & HINT_STRICT_SUBS)) | |
6604 | pl_yylval.opval->op_private |= OPpCONST_STRICT; | |
041457d9 DM |
6605 | if (lastchar != '-') { |
6606 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
6607 | d = PL_tokenbuf; |
6608 | while (isLOWER(*d)) | |
6609 | d++; | |
da51bb9b | 6610 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 6611 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
6612 | PL_tokenbuf); |
6613 | } | |
748a9306 LW |
6614 | } |
6615 | } | |
f7461760 | 6616 | op_free(rv2cv_op); |
c3e0f903 GS |
6617 | |
6618 | safe_bareword: | |
9b387841 NC |
6619 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&')) { |
6620 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6621 | "Operator or semicolon missing before %c%s", | |
6622 | lastchar, PL_tokenbuf); | |
6623 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6624 | "Ambiguous use of %c resolved as operator %c", | |
6625 | lastchar, lastchar); | |
748a9306 | 6626 | } |
93a17b20 | 6627 | TOKEN(WORD); |
79072805 | 6628 | } |
79072805 | 6629 | |
68dc0745 | 6630 | case KEY___FILE__: |
6154021b | 6631 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 6632 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 6633 | TERM(THING); |
6634 | ||
79072805 | 6635 | case KEY___LINE__: |
6154021b | 6636 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 6637 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 6638 | TERM(THING); |
68dc0745 | 6639 | |
6640 | case KEY___PACKAGE__: | |
6154021b | 6641 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 6642 | (PL_curstash |
5aaec2b4 | 6643 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 6644 | : &PL_sv_undef)); |
79072805 | 6645 | TERM(THING); |
79072805 | 6646 | |
e50aee73 | 6647 | case KEY___DATA__: |
79072805 LW |
6648 | case KEY___END__: { |
6649 | GV *gv; | |
3280af22 | 6650 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 6651 | const char *pname = "main"; |
3280af22 | 6652 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 6653 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
6654 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
6655 | SVt_PVIO); | |
a5f75d66 | 6656 | GvMULTI_on(gv); |
79072805 | 6657 | if (!GvIO(gv)) |
a0d0e21e | 6658 | GvIOp(gv) = newIO(); |
3280af22 | 6659 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
6660 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
6661 | { | |
f54cb97a | 6662 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
6663 | fcntl(fd,F_SETFD,fd >= 3); |
6664 | } | |
79072805 | 6665 | #endif |
fd049845 | 6666 | /* Mark this internal pseudo-handle as clean */ |
6667 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 6668 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 6669 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 6670 | else |
50952442 | 6671 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
6672 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
6673 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 6674 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 6675 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
6676 | if (PL_bufend-PL_bufptr > 2 |
6677 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
6678 | { |
6679 | Off_t loc = 0; | |
50952442 | 6680 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
6681 | loc = PerlIO_tell(PL_rsfp); |
6682 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
6683 | } | |
2986a63f JH |
6684 | #ifdef NETWARE |
6685 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
6686 | #else | |
c39cd008 | 6687 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 6688 | #endif /* NETWARE */ |
1143fce0 JH |
6689 | #ifdef PERLIO_IS_STDIO /* really? */ |
6690 | # if defined(__BORLANDC__) | |
cb359b41 JH |
6691 | /* XXX see note in do_binmode() */ |
6692 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
6693 | # endif |
6694 | #endif | |
c39cd008 GS |
6695 | if (loc > 0) |
6696 | PerlIO_seek(PL_rsfp, loc, 0); | |
6697 | } | |
6698 | } | |
6699 | #endif | |
7948272d | 6700 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
6701 | if (!IN_BYTES) { |
6702 | if (UTF) | |
6703 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
6704 | else if (PL_encoding) { | |
6705 | SV *name; | |
6706 | dSP; | |
6707 | ENTER; | |
6708 | SAVETMPS; | |
6709 | PUSHMARK(sp); | |
6710 | EXTEND(SP, 1); | |
6711 | XPUSHs(PL_encoding); | |
6712 | PUTBACK; | |
6713 | call_method("name", G_SCALAR); | |
6714 | SPAGAIN; | |
6715 | name = POPs; | |
6716 | PUTBACK; | |
bfed75c6 | 6717 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 6718 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 6719 | SVfARG(name))); |
52d2e0f4 JH |
6720 | FREETMPS; |
6721 | LEAVE; | |
6722 | } | |
6723 | } | |
7948272d | 6724 | #endif |
5db06880 NC |
6725 | #ifdef PERL_MAD |
6726 | if (PL_madskills) { | |
cd81e915 NC |
6727 | if (PL_realtokenstart >= 0) { |
6728 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
6729 | if (!PL_endwhite) | |
6b29d1f5 | 6730 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
6731 | sv_catsv(PL_endwhite, PL_thiswhite); |
6732 | PL_thiswhite = 0; | |
6733 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
6734 | PL_realtokenstart = -1; | |
5db06880 | 6735 | } |
5cc814fd NC |
6736 | while ((s = filter_gets(PL_endwhite, SvCUR(PL_endwhite))) |
6737 | != NULL) ; | |
5db06880 NC |
6738 | } |
6739 | #endif | |
4608196e | 6740 | PL_rsfp = NULL; |
79072805 LW |
6741 | } |
6742 | goto fake_eof; | |
e929a76b | 6743 | } |
de3bb511 | 6744 | |
8990e307 | 6745 | case KEY_AUTOLOAD: |
ed6116ce | 6746 | case KEY_DESTROY: |
79072805 | 6747 | case KEY_BEGIN: |
3c10abe3 | 6748 | case KEY_UNITCHECK: |
7d30b5c4 | 6749 | case KEY_CHECK: |
7d07dbc2 | 6750 | case KEY_INIT: |
7d30b5c4 | 6751 | case KEY_END: |
3280af22 NIS |
6752 | if (PL_expect == XSTATE) { |
6753 | s = PL_bufptr; | |
93a17b20 | 6754 | goto really_sub; |
79072805 LW |
6755 | } |
6756 | goto just_a_word; | |
6757 | ||
a0d0e21e LW |
6758 | case KEY_CORE: |
6759 | if (*s == ':' && s[1] == ':') { | |
6760 | s += 2; | |
748a9306 | 6761 | d = s; |
3280af22 | 6762 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 6763 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 6764 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
6765 | if (tmp < 0) |
6766 | tmp = -tmp; | |
850e8516 | 6767 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 6768 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 6769 | orig_keyword = tmp; |
a0d0e21e LW |
6770 | goto reserved_word; |
6771 | } | |
6772 | goto just_a_word; | |
6773 | ||
463ee0b2 LW |
6774 | case KEY_abs: |
6775 | UNI(OP_ABS); | |
6776 | ||
79072805 LW |
6777 | case KEY_alarm: |
6778 | UNI(OP_ALARM); | |
6779 | ||
6780 | case KEY_accept: | |
a0d0e21e | 6781 | LOP(OP_ACCEPT,XTERM); |
79072805 | 6782 | |
463ee0b2 LW |
6783 | case KEY_and: |
6784 | OPERATOR(ANDOP); | |
6785 | ||
79072805 | 6786 | case KEY_atan2: |
a0d0e21e | 6787 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 6788 | |
79072805 | 6789 | case KEY_bind: |
a0d0e21e | 6790 | LOP(OP_BIND,XTERM); |
79072805 LW |
6791 | |
6792 | case KEY_binmode: | |
1c1fc3ea | 6793 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
6794 | |
6795 | case KEY_bless: | |
a0d0e21e | 6796 | LOP(OP_BLESS,XTERM); |
79072805 | 6797 | |
0d863452 RH |
6798 | case KEY_break: |
6799 | FUN0(OP_BREAK); | |
6800 | ||
79072805 LW |
6801 | case KEY_chop: |
6802 | UNI(OP_CHOP); | |
6803 | ||
6804 | case KEY_continue: | |
0d863452 RH |
6805 | /* When 'use switch' is in effect, continue has a dual |
6806 | life as a control operator. */ | |
6807 | { | |
ef89dcc3 | 6808 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
6809 | PREBLOCK(CONTINUE); |
6810 | else { | |
6811 | /* We have to disambiguate the two senses of | |
6812 | "continue". If the next token is a '{' then | |
6813 | treat it as the start of a continue block; | |
6814 | otherwise treat it as a control operator. | |
6815 | */ | |
6816 | s = skipspace(s); | |
6817 | if (*s == '{') | |
79072805 | 6818 | PREBLOCK(CONTINUE); |
0d863452 RH |
6819 | else |
6820 | FUN0(OP_CONTINUE); | |
6821 | } | |
6822 | } | |
79072805 LW |
6823 | |
6824 | case KEY_chdir: | |
fafc274c NC |
6825 | /* may use HOME */ |
6826 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
6827 | UNI(OP_CHDIR); |
6828 | ||
6829 | case KEY_close: | |
6830 | UNI(OP_CLOSE); | |
6831 | ||
6832 | case KEY_closedir: | |
6833 | UNI(OP_CLOSEDIR); | |
6834 | ||
6835 | case KEY_cmp: | |
6836 | Eop(OP_SCMP); | |
6837 | ||
6838 | case KEY_caller: | |
6839 | UNI(OP_CALLER); | |
6840 | ||
6841 | case KEY_crypt: | |
6842 | #ifdef FCRYPT | |
f4c556ac GS |
6843 | if (!PL_cryptseen) { |
6844 | PL_cryptseen = TRUE; | |
de3bb511 | 6845 | init_des(); |
f4c556ac | 6846 | } |
a687059c | 6847 | #endif |
a0d0e21e | 6848 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
6849 | |
6850 | case KEY_chmod: | |
a0d0e21e | 6851 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
6852 | |
6853 | case KEY_chown: | |
a0d0e21e | 6854 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
6855 | |
6856 | case KEY_connect: | |
a0d0e21e | 6857 | LOP(OP_CONNECT,XTERM); |
79072805 | 6858 | |
463ee0b2 LW |
6859 | case KEY_chr: |
6860 | UNI(OP_CHR); | |
6861 | ||
79072805 LW |
6862 | case KEY_cos: |
6863 | UNI(OP_COS); | |
6864 | ||
6865 | case KEY_chroot: | |
6866 | UNI(OP_CHROOT); | |
6867 | ||
0d863452 RH |
6868 | case KEY_default: |
6869 | PREBLOCK(DEFAULT); | |
6870 | ||
79072805 | 6871 | case KEY_do: |
29595ff2 | 6872 | s = SKIPSPACE1(s); |
79072805 | 6873 | if (*s == '{') |
a0d0e21e | 6874 | PRETERMBLOCK(DO); |
79072805 | 6875 | if (*s != '\'') |
89c5585f | 6876 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
6877 | if (orig_keyword == KEY_do) { |
6878 | orig_keyword = 0; | |
6154021b | 6879 | pl_yylval.ival = 1; |
850e8516 RGS |
6880 | } |
6881 | else | |
6154021b | 6882 | pl_yylval.ival = 0; |
378cc40b | 6883 | OPERATOR(DO); |
79072805 LW |
6884 | |
6885 | case KEY_die: | |
3280af22 | 6886 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6887 | LOP(OP_DIE,XTERM); |
79072805 LW |
6888 | |
6889 | case KEY_defined: | |
6890 | UNI(OP_DEFINED); | |
6891 | ||
6892 | case KEY_delete: | |
a0d0e21e | 6893 | UNI(OP_DELETE); |
79072805 LW |
6894 | |
6895 | case KEY_dbmopen: | |
5c1737d1 | 6896 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 6897 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
6898 | |
6899 | case KEY_dbmclose: | |
6900 | UNI(OP_DBMCLOSE); | |
6901 | ||
6902 | case KEY_dump: | |
a0d0e21e | 6903 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6904 | LOOPX(OP_DUMP); |
6905 | ||
6906 | case KEY_else: | |
6907 | PREBLOCK(ELSE); | |
6908 | ||
6909 | case KEY_elsif: | |
6154021b | 6910 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6911 | OPERATOR(ELSIF); |
6912 | ||
6913 | case KEY_eq: | |
6914 | Eop(OP_SEQ); | |
6915 | ||
a0d0e21e LW |
6916 | case KEY_exists: |
6917 | UNI(OP_EXISTS); | |
4e553d73 | 6918 | |
79072805 | 6919 | case KEY_exit: |
5db06880 NC |
6920 | if (PL_madskills) |
6921 | UNI(OP_INT); | |
79072805 LW |
6922 | UNI(OP_EXIT); |
6923 | ||
6924 | case KEY_eval: | |
29595ff2 | 6925 | s = SKIPSPACE1(s); |
32e2a35d RGS |
6926 | if (*s == '{') { /* block eval */ |
6927 | PL_expect = XTERMBLOCK; | |
6928 | UNIBRACK(OP_ENTERTRY); | |
6929 | } | |
6930 | else { /* string eval */ | |
6931 | PL_expect = XTERM; | |
6932 | UNIBRACK(OP_ENTEREVAL); | |
6933 | } | |
79072805 LW |
6934 | |
6935 | case KEY_eof: | |
6936 | UNI(OP_EOF); | |
6937 | ||
6938 | case KEY_exp: | |
6939 | UNI(OP_EXP); | |
6940 | ||
6941 | case KEY_each: | |
6942 | UNI(OP_EACH); | |
6943 | ||
6944 | case KEY_exec: | |
a0d0e21e | 6945 | LOP(OP_EXEC,XREF); |
79072805 LW |
6946 | |
6947 | case KEY_endhostent: | |
6948 | FUN0(OP_EHOSTENT); | |
6949 | ||
6950 | case KEY_endnetent: | |
6951 | FUN0(OP_ENETENT); | |
6952 | ||
6953 | case KEY_endservent: | |
6954 | FUN0(OP_ESERVENT); | |
6955 | ||
6956 | case KEY_endprotoent: | |
6957 | FUN0(OP_EPROTOENT); | |
6958 | ||
6959 | case KEY_endpwent: | |
6960 | FUN0(OP_EPWENT); | |
6961 | ||
6962 | case KEY_endgrent: | |
6963 | FUN0(OP_EGRENT); | |
6964 | ||
6965 | case KEY_for: | |
6966 | case KEY_foreach: | |
6154021b | 6967 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 6968 | s = SKIPSPACE1(s); |
7e2040f0 | 6969 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 6970 | char *p = s; |
5db06880 NC |
6971 | #ifdef PERL_MAD |
6972 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
6973 | #endif | |
6974 | ||
3280af22 | 6975 | if ((PL_bufend - p) >= 3 && |
55497cff | 6976 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
6977 | p += 2; | |
77ca0c92 LW |
6978 | else if ((PL_bufend - p) >= 4 && |
6979 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
6980 | p += 3; | |
29595ff2 | 6981 | p = PEEKSPACE(p); |
7e2040f0 | 6982 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
6983 | p = scan_ident(p, PL_bufend, |
6984 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 6985 | p = PEEKSPACE(p); |
77ca0c92 LW |
6986 | } |
6987 | if (*p != '$') | |
cea2e8a9 | 6988 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
6989 | #ifdef PERL_MAD |
6990 | s = SvPVX(PL_linestr) + soff; | |
6991 | #endif | |
55497cff | 6992 | } |
79072805 LW |
6993 | OPERATOR(FOR); |
6994 | ||
6995 | case KEY_formline: | |
a0d0e21e | 6996 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
6997 | |
6998 | case KEY_fork: | |
6999 | FUN0(OP_FORK); | |
7000 | ||
7001 | case KEY_fcntl: | |
a0d0e21e | 7002 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
7003 | |
7004 | case KEY_fileno: | |
7005 | UNI(OP_FILENO); | |
7006 | ||
7007 | case KEY_flock: | |
a0d0e21e | 7008 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
7009 | |
7010 | case KEY_gt: | |
7011 | Rop(OP_SGT); | |
7012 | ||
7013 | case KEY_ge: | |
7014 | Rop(OP_SGE); | |
7015 | ||
7016 | case KEY_grep: | |
2c38e13d | 7017 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
7018 | |
7019 | case KEY_goto: | |
a0d0e21e | 7020 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7021 | LOOPX(OP_GOTO); |
7022 | ||
7023 | case KEY_gmtime: | |
7024 | UNI(OP_GMTIME); | |
7025 | ||
7026 | case KEY_getc: | |
6f33ba73 | 7027 | UNIDOR(OP_GETC); |
79072805 LW |
7028 | |
7029 | case KEY_getppid: | |
7030 | FUN0(OP_GETPPID); | |
7031 | ||
7032 | case KEY_getpgrp: | |
7033 | UNI(OP_GETPGRP); | |
7034 | ||
7035 | case KEY_getpriority: | |
a0d0e21e | 7036 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
7037 | |
7038 | case KEY_getprotobyname: | |
7039 | UNI(OP_GPBYNAME); | |
7040 | ||
7041 | case KEY_getprotobynumber: | |
a0d0e21e | 7042 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
7043 | |
7044 | case KEY_getprotoent: | |
7045 | FUN0(OP_GPROTOENT); | |
7046 | ||
7047 | case KEY_getpwent: | |
7048 | FUN0(OP_GPWENT); | |
7049 | ||
7050 | case KEY_getpwnam: | |
ff68c719 | 7051 | UNI(OP_GPWNAM); |
79072805 LW |
7052 | |
7053 | case KEY_getpwuid: | |
ff68c719 | 7054 | UNI(OP_GPWUID); |
79072805 LW |
7055 | |
7056 | case KEY_getpeername: | |
7057 | UNI(OP_GETPEERNAME); | |
7058 | ||
7059 | case KEY_gethostbyname: | |
7060 | UNI(OP_GHBYNAME); | |
7061 | ||
7062 | case KEY_gethostbyaddr: | |
a0d0e21e | 7063 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
7064 | |
7065 | case KEY_gethostent: | |
7066 | FUN0(OP_GHOSTENT); | |
7067 | ||
7068 | case KEY_getnetbyname: | |
7069 | UNI(OP_GNBYNAME); | |
7070 | ||
7071 | case KEY_getnetbyaddr: | |
a0d0e21e | 7072 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
7073 | |
7074 | case KEY_getnetent: | |
7075 | FUN0(OP_GNETENT); | |
7076 | ||
7077 | case KEY_getservbyname: | |
a0d0e21e | 7078 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
7079 | |
7080 | case KEY_getservbyport: | |
a0d0e21e | 7081 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
7082 | |
7083 | case KEY_getservent: | |
7084 | FUN0(OP_GSERVENT); | |
7085 | ||
7086 | case KEY_getsockname: | |
7087 | UNI(OP_GETSOCKNAME); | |
7088 | ||
7089 | case KEY_getsockopt: | |
a0d0e21e | 7090 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
7091 | |
7092 | case KEY_getgrent: | |
7093 | FUN0(OP_GGRENT); | |
7094 | ||
7095 | case KEY_getgrnam: | |
ff68c719 | 7096 | UNI(OP_GGRNAM); |
79072805 LW |
7097 | |
7098 | case KEY_getgrgid: | |
ff68c719 | 7099 | UNI(OP_GGRGID); |
79072805 LW |
7100 | |
7101 | case KEY_getlogin: | |
7102 | FUN0(OP_GETLOGIN); | |
7103 | ||
0d863452 | 7104 | case KEY_given: |
6154021b | 7105 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
7106 | OPERATOR(GIVEN); |
7107 | ||
93a17b20 | 7108 | case KEY_glob: |
a0d0e21e | 7109 | LOP(OP_GLOB,XTERM); |
93a17b20 | 7110 | |
79072805 LW |
7111 | case KEY_hex: |
7112 | UNI(OP_HEX); | |
7113 | ||
7114 | case KEY_if: | |
6154021b | 7115 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7116 | OPERATOR(IF); |
7117 | ||
7118 | case KEY_index: | |
a0d0e21e | 7119 | LOP(OP_INDEX,XTERM); |
79072805 LW |
7120 | |
7121 | case KEY_int: | |
7122 | UNI(OP_INT); | |
7123 | ||
7124 | case KEY_ioctl: | |
a0d0e21e | 7125 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
7126 | |
7127 | case KEY_join: | |
a0d0e21e | 7128 | LOP(OP_JOIN,XTERM); |
79072805 LW |
7129 | |
7130 | case KEY_keys: | |
7131 | UNI(OP_KEYS); | |
7132 | ||
7133 | case KEY_kill: | |
a0d0e21e | 7134 | LOP(OP_KILL,XTERM); |
79072805 LW |
7135 | |
7136 | case KEY_last: | |
a0d0e21e | 7137 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 7138 | LOOPX(OP_LAST); |
4e553d73 | 7139 | |
79072805 LW |
7140 | case KEY_lc: |
7141 | UNI(OP_LC); | |
7142 | ||
7143 | case KEY_lcfirst: | |
7144 | UNI(OP_LCFIRST); | |
7145 | ||
7146 | case KEY_local: | |
6154021b | 7147 | pl_yylval.ival = 0; |
79072805 LW |
7148 | OPERATOR(LOCAL); |
7149 | ||
7150 | case KEY_length: | |
7151 | UNI(OP_LENGTH); | |
7152 | ||
7153 | case KEY_lt: | |
7154 | Rop(OP_SLT); | |
7155 | ||
7156 | case KEY_le: | |
7157 | Rop(OP_SLE); | |
7158 | ||
7159 | case KEY_localtime: | |
7160 | UNI(OP_LOCALTIME); | |
7161 | ||
7162 | case KEY_log: | |
7163 | UNI(OP_LOG); | |
7164 | ||
7165 | case KEY_link: | |
a0d0e21e | 7166 | LOP(OP_LINK,XTERM); |
79072805 LW |
7167 | |
7168 | case KEY_listen: | |
a0d0e21e | 7169 | LOP(OP_LISTEN,XTERM); |
79072805 | 7170 | |
c0329465 MB |
7171 | case KEY_lock: |
7172 | UNI(OP_LOCK); | |
7173 | ||
79072805 LW |
7174 | case KEY_lstat: |
7175 | UNI(OP_LSTAT); | |
7176 | ||
7177 | case KEY_m: | |
8782bef2 | 7178 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
7179 | TERM(sublex_start()); |
7180 | ||
a0d0e21e | 7181 | case KEY_map: |
2c38e13d | 7182 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 7183 | |
79072805 | 7184 | case KEY_mkdir: |
a0d0e21e | 7185 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
7186 | |
7187 | case KEY_msgctl: | |
a0d0e21e | 7188 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
7189 | |
7190 | case KEY_msgget: | |
a0d0e21e | 7191 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
7192 | |
7193 | case KEY_msgrcv: | |
a0d0e21e | 7194 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
7195 | |
7196 | case KEY_msgsnd: | |
a0d0e21e | 7197 | LOP(OP_MSGSND,XTERM); |
79072805 | 7198 | |
77ca0c92 | 7199 | case KEY_our: |
93a17b20 | 7200 | case KEY_my: |
952306ac | 7201 | case KEY_state: |
eac04b2e | 7202 | PL_in_my = (U16)tmp; |
29595ff2 | 7203 | s = SKIPSPACE1(s); |
7e2040f0 | 7204 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
7205 | #ifdef PERL_MAD |
7206 | char* start = s; | |
7207 | #endif | |
3280af22 | 7208 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
7209 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
7210 | goto really_sub; | |
def3634b | 7211 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 7212 | if (!PL_in_my_stash) { |
c750a3ec | 7213 | char tmpbuf[1024]; |
3280af22 | 7214 | PL_bufptr = s; |
d9fad198 | 7215 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
7216 | yyerror(tmpbuf); |
7217 | } | |
5db06880 NC |
7218 | #ifdef PERL_MAD |
7219 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
7220 | sv_catsv(PL_thistoken, PL_nextwhite); |
7221 | PL_nextwhite = 0; | |
7222 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
7223 | } |
7224 | #endif | |
c750a3ec | 7225 | } |
6154021b | 7226 | pl_yylval.ival = 1; |
55497cff | 7227 | OPERATOR(MY); |
93a17b20 | 7228 | |
79072805 | 7229 | case KEY_next: |
a0d0e21e | 7230 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7231 | LOOPX(OP_NEXT); |
7232 | ||
7233 | case KEY_ne: | |
7234 | Eop(OP_SNE); | |
7235 | ||
a0d0e21e | 7236 | case KEY_no: |
468aa647 | 7237 | s = tokenize_use(0, s); |
a0d0e21e LW |
7238 | OPERATOR(USE); |
7239 | ||
7240 | case KEY_not: | |
29595ff2 | 7241 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
7242 | FUN1(OP_NOT); |
7243 | else | |
7244 | OPERATOR(NOTOP); | |
a0d0e21e | 7245 | |
79072805 | 7246 | case KEY_open: |
29595ff2 | 7247 | s = SKIPSPACE1(s); |
7e2040f0 | 7248 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 7249 | const char *t; |
c35e046a AL |
7250 | for (d = s; isALNUM_lazy_if(d,UTF);) |
7251 | d++; | |
7252 | for (t=d; isSPACE(*t);) | |
7253 | t++; | |
e2ab214b | 7254 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
7255 | /* [perl #16184] */ |
7256 | && !(t[0] == '=' && t[1] == '>') | |
7257 | ) { | |
5f66b61c | 7258 | int parms_len = (int)(d-s); |
9014280d | 7259 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 7260 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 7261 | parms_len, s, parms_len, s); |
66fbe8fb | 7262 | } |
93a17b20 | 7263 | } |
a0d0e21e | 7264 | LOP(OP_OPEN,XTERM); |
79072805 | 7265 | |
463ee0b2 | 7266 | case KEY_or: |
6154021b | 7267 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
7268 | OPERATOR(OROP); |
7269 | ||
79072805 LW |
7270 | case KEY_ord: |
7271 | UNI(OP_ORD); | |
7272 | ||
7273 | case KEY_oct: | |
7274 | UNI(OP_OCT); | |
7275 | ||
7276 | case KEY_opendir: | |
a0d0e21e | 7277 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
7278 | |
7279 | case KEY_print: | |
3280af22 | 7280 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 7281 | LOP(OP_PRINT,XREF); |
79072805 LW |
7282 | |
7283 | case KEY_printf: | |
3280af22 | 7284 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 7285 | LOP(OP_PRTF,XREF); |
79072805 | 7286 | |
c07a80fd | 7287 | case KEY_prototype: |
7288 | UNI(OP_PROTOTYPE); | |
7289 | ||
79072805 | 7290 | case KEY_push: |
a0d0e21e | 7291 | LOP(OP_PUSH,XTERM); |
79072805 LW |
7292 | |
7293 | case KEY_pop: | |
6f33ba73 | 7294 | UNIDOR(OP_POP); |
79072805 | 7295 | |
a0d0e21e | 7296 | case KEY_pos: |
6f33ba73 | 7297 | UNIDOR(OP_POS); |
4e553d73 | 7298 | |
79072805 | 7299 | case KEY_pack: |
a0d0e21e | 7300 | LOP(OP_PACK,XTERM); |
79072805 LW |
7301 | |
7302 | case KEY_package: | |
a0d0e21e | 7303 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
14a86d0c | 7304 | s = SKIPSPACE1(s); |
91152fc1 | 7305 | s = force_strict_version(s); |
4e4da3ac | 7306 | PL_lex_expect = XBLOCK; |
79072805 LW |
7307 | OPERATOR(PACKAGE); |
7308 | ||
7309 | case KEY_pipe: | |
a0d0e21e | 7310 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
7311 | |
7312 | case KEY_q: | |
5db06880 | 7313 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7314 | if (!s) |
d4c19fe8 | 7315 | missingterm(NULL); |
6154021b | 7316 | pl_yylval.ival = OP_CONST; |
79072805 LW |
7317 | TERM(sublex_start()); |
7318 | ||
a0d0e21e LW |
7319 | case KEY_quotemeta: |
7320 | UNI(OP_QUOTEMETA); | |
7321 | ||
ea25a9b2 Z |
7322 | case KEY_qw: { |
7323 | OP *words = NULL; | |
5db06880 | 7324 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 7325 | if (!s) |
d4c19fe8 | 7326 | missingterm(NULL); |
3480a8d2 | 7327 | PL_expect = XOPERATOR; |
8127e0e3 | 7328 | if (SvCUR(PL_lex_stuff)) { |
8127e0e3 | 7329 | int warned = 0; |
3280af22 | 7330 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 7331 | while (len) { |
d4c19fe8 AL |
7332 | for (; isSPACE(*d) && len; --len, ++d) |
7333 | /**/; | |
8127e0e3 | 7334 | if (len) { |
d4c19fe8 | 7335 | SV *sv; |
f54cb97a | 7336 | const char *b = d; |
e476b1b5 | 7337 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
7338 | for (; !isSPACE(*d) && len; --len, ++d) { |
7339 | if (*d == ',') { | |
9014280d | 7340 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7341 | "Possible attempt to separate words with commas"); |
7342 | ++warned; | |
7343 | } | |
7344 | else if (*d == '#') { | |
9014280d | 7345 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7346 | "Possible attempt to put comments in qw() list"); |
7347 | ++warned; | |
7348 | } | |
7349 | } | |
7350 | } | |
7351 | else { | |
d4c19fe8 AL |
7352 | for (; !isSPACE(*d) && len; --len, ++d) |
7353 | /**/; | |
8127e0e3 | 7354 | } |
740cce10 | 7355 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 7356 | words = append_elem(OP_LIST, words, |
7948272d | 7357 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 7358 | } |
7359 | } | |
7360 | } | |
ea25a9b2 Z |
7361 | if (!words) |
7362 | words = newNULLLIST(); | |
37fd879b | 7363 | if (PL_lex_stuff) { |
8127e0e3 | 7364 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 7365 | PL_lex_stuff = NULL; |
37fd879b | 7366 | } |
ea25a9b2 Z |
7367 | PL_expect = XOPERATOR; |
7368 | pl_yylval.opval = sawparens(words); | |
7369 | TOKEN(QWLIST); | |
7370 | } | |
8990e307 | 7371 | |
79072805 | 7372 | case KEY_qq: |
5db06880 | 7373 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7374 | if (!s) |
d4c19fe8 | 7375 | missingterm(NULL); |
6154021b | 7376 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 7377 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 7378 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
7379 | TERM(sublex_start()); |
7380 | ||
8782bef2 GB |
7381 | case KEY_qr: |
7382 | s = scan_pat(s,OP_QR); | |
7383 | TERM(sublex_start()); | |
7384 | ||
79072805 | 7385 | case KEY_qx: |
5db06880 | 7386 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7387 | if (!s) |
d4c19fe8 | 7388 | missingterm(NULL); |
9b201d7d | 7389 | readpipe_override(); |
79072805 LW |
7390 | TERM(sublex_start()); |
7391 | ||
7392 | case KEY_return: | |
7393 | OLDLOP(OP_RETURN); | |
7394 | ||
7395 | case KEY_require: | |
29595ff2 | 7396 | s = SKIPSPACE1(s); |
e759cc13 RGS |
7397 | if (isDIGIT(*s)) { |
7398 | s = force_version(s, FALSE); | |
a7cb1f99 | 7399 | } |
e759cc13 RGS |
7400 | else if (*s != 'v' || !isDIGIT(s[1]) |
7401 | || (s = force_version(s, TRUE), *s == 'v')) | |
7402 | { | |
a7cb1f99 GS |
7403 | *PL_tokenbuf = '\0'; |
7404 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 7405 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 7406 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
7407 | else if (*s == '<') |
7408 | yyerror("<> should be quotes"); | |
7409 | } | |
a72a1c8b RGS |
7410 | if (orig_keyword == KEY_require) { |
7411 | orig_keyword = 0; | |
6154021b | 7412 | pl_yylval.ival = 1; |
a72a1c8b RGS |
7413 | } |
7414 | else | |
6154021b | 7415 | pl_yylval.ival = 0; |
a72a1c8b RGS |
7416 | PL_expect = XTERM; |
7417 | PL_bufptr = s; | |
7418 | PL_last_uni = PL_oldbufptr; | |
7419 | PL_last_lop_op = OP_REQUIRE; | |
7420 | s = skipspace(s); | |
7421 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
7422 | |
7423 | case KEY_reset: | |
7424 | UNI(OP_RESET); | |
7425 | ||
7426 | case KEY_redo: | |
a0d0e21e | 7427 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7428 | LOOPX(OP_REDO); |
7429 | ||
7430 | case KEY_rename: | |
a0d0e21e | 7431 | LOP(OP_RENAME,XTERM); |
79072805 LW |
7432 | |
7433 | case KEY_rand: | |
7434 | UNI(OP_RAND); | |
7435 | ||
7436 | case KEY_rmdir: | |
7437 | UNI(OP_RMDIR); | |
7438 | ||
7439 | case KEY_rindex: | |
a0d0e21e | 7440 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
7441 | |
7442 | case KEY_read: | |
a0d0e21e | 7443 | LOP(OP_READ,XTERM); |
79072805 LW |
7444 | |
7445 | case KEY_readdir: | |
7446 | UNI(OP_READDIR); | |
7447 | ||
93a17b20 | 7448 | case KEY_readline: |
6f33ba73 | 7449 | UNIDOR(OP_READLINE); |
93a17b20 LW |
7450 | |
7451 | case KEY_readpipe: | |
0858480c | 7452 | UNIDOR(OP_BACKTICK); |
93a17b20 | 7453 | |
79072805 LW |
7454 | case KEY_rewinddir: |
7455 | UNI(OP_REWINDDIR); | |
7456 | ||
7457 | case KEY_recv: | |
a0d0e21e | 7458 | LOP(OP_RECV,XTERM); |
79072805 LW |
7459 | |
7460 | case KEY_reverse: | |
a0d0e21e | 7461 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
7462 | |
7463 | case KEY_readlink: | |
6f33ba73 | 7464 | UNIDOR(OP_READLINK); |
79072805 LW |
7465 | |
7466 | case KEY_ref: | |
7467 | UNI(OP_REF); | |
7468 | ||
7469 | case KEY_s: | |
7470 | s = scan_subst(s); | |
6154021b | 7471 | if (pl_yylval.opval) |
79072805 LW |
7472 | TERM(sublex_start()); |
7473 | else | |
7474 | TOKEN(1); /* force error */ | |
7475 | ||
0d863452 RH |
7476 | case KEY_say: |
7477 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
7478 | LOP(OP_SAY,XREF); | |
7479 | ||
a0d0e21e LW |
7480 | case KEY_chomp: |
7481 | UNI(OP_CHOMP); | |
4e553d73 | 7482 | |
79072805 LW |
7483 | case KEY_scalar: |
7484 | UNI(OP_SCALAR); | |
7485 | ||
7486 | case KEY_select: | |
a0d0e21e | 7487 | LOP(OP_SELECT,XTERM); |
79072805 LW |
7488 | |
7489 | case KEY_seek: | |
a0d0e21e | 7490 | LOP(OP_SEEK,XTERM); |
79072805 LW |
7491 | |
7492 | case KEY_semctl: | |
a0d0e21e | 7493 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
7494 | |
7495 | case KEY_semget: | |
a0d0e21e | 7496 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
7497 | |
7498 | case KEY_semop: | |
a0d0e21e | 7499 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
7500 | |
7501 | case KEY_send: | |
a0d0e21e | 7502 | LOP(OP_SEND,XTERM); |
79072805 LW |
7503 | |
7504 | case KEY_setpgrp: | |
a0d0e21e | 7505 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
7506 | |
7507 | case KEY_setpriority: | |
a0d0e21e | 7508 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
7509 | |
7510 | case KEY_sethostent: | |
ff68c719 | 7511 | UNI(OP_SHOSTENT); |
79072805 LW |
7512 | |
7513 | case KEY_setnetent: | |
ff68c719 | 7514 | UNI(OP_SNETENT); |
79072805 LW |
7515 | |
7516 | case KEY_setservent: | |
ff68c719 | 7517 | UNI(OP_SSERVENT); |
79072805 LW |
7518 | |
7519 | case KEY_setprotoent: | |
ff68c719 | 7520 | UNI(OP_SPROTOENT); |
79072805 LW |
7521 | |
7522 | case KEY_setpwent: | |
7523 | FUN0(OP_SPWENT); | |
7524 | ||
7525 | case KEY_setgrent: | |
7526 | FUN0(OP_SGRENT); | |
7527 | ||
7528 | case KEY_seekdir: | |
a0d0e21e | 7529 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
7530 | |
7531 | case KEY_setsockopt: | |
a0d0e21e | 7532 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
7533 | |
7534 | case KEY_shift: | |
6f33ba73 | 7535 | UNIDOR(OP_SHIFT); |
79072805 LW |
7536 | |
7537 | case KEY_shmctl: | |
a0d0e21e | 7538 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
7539 | |
7540 | case KEY_shmget: | |
a0d0e21e | 7541 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
7542 | |
7543 | case KEY_shmread: | |
a0d0e21e | 7544 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
7545 | |
7546 | case KEY_shmwrite: | |
a0d0e21e | 7547 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
7548 | |
7549 | case KEY_shutdown: | |
a0d0e21e | 7550 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
7551 | |
7552 | case KEY_sin: | |
7553 | UNI(OP_SIN); | |
7554 | ||
7555 | case KEY_sleep: | |
7556 | UNI(OP_SLEEP); | |
7557 | ||
7558 | case KEY_socket: | |
a0d0e21e | 7559 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
7560 | |
7561 | case KEY_socketpair: | |
a0d0e21e | 7562 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
7563 | |
7564 | case KEY_sort: | |
3280af22 | 7565 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 7566 | s = SKIPSPACE1(s); |
79072805 | 7567 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 7568 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 7569 | PL_expect = XTERM; |
15f0808c | 7570 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 7571 | LOP(OP_SORT,XREF); |
79072805 LW |
7572 | |
7573 | case KEY_split: | |
a0d0e21e | 7574 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
7575 | |
7576 | case KEY_sprintf: | |
a0d0e21e | 7577 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
7578 | |
7579 | case KEY_splice: | |
a0d0e21e | 7580 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
7581 | |
7582 | case KEY_sqrt: | |
7583 | UNI(OP_SQRT); | |
7584 | ||
7585 | case KEY_srand: | |
7586 | UNI(OP_SRAND); | |
7587 | ||
7588 | case KEY_stat: | |
7589 | UNI(OP_STAT); | |
7590 | ||
7591 | case KEY_study: | |
79072805 LW |
7592 | UNI(OP_STUDY); |
7593 | ||
7594 | case KEY_substr: | |
a0d0e21e | 7595 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
7596 | |
7597 | case KEY_format: | |
7598 | case KEY_sub: | |
93a17b20 | 7599 | really_sub: |
09bef843 | 7600 | { |
3280af22 | 7601 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 7602 | SSize_t tboffset = 0; |
09bef843 | 7603 | expectation attrful; |
28cc6278 | 7604 | bool have_name, have_proto; |
f54cb97a | 7605 | const int key = tmp; |
09bef843 | 7606 | |
5db06880 NC |
7607 | #ifdef PERL_MAD |
7608 | SV *tmpwhite = 0; | |
7609 | ||
cd81e915 | 7610 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 7611 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 7612 | PL_thistoken = 0; |
5db06880 NC |
7613 | |
7614 | d = s; | |
7615 | s = SKIPSPACE2(s,tmpwhite); | |
7616 | #else | |
09bef843 | 7617 | s = skipspace(s); |
5db06880 | 7618 | #endif |
09bef843 | 7619 | |
7e2040f0 | 7620 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
7621 | (*s == ':' && s[1] == ':')) |
7622 | { | |
5db06880 | 7623 | #ifdef PERL_MAD |
4f61fd4b | 7624 | SV *nametoke = NULL; |
5db06880 NC |
7625 | #endif |
7626 | ||
09bef843 SB |
7627 | PL_expect = XBLOCK; |
7628 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
7629 | /* remember buffer pos'n for later force_word */ |
7630 | tboffset = s - PL_oldbufptr; | |
09bef843 | 7631 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
7632 | #ifdef PERL_MAD |
7633 | if (PL_madskills) | |
7634 | nametoke = newSVpvn(s, d - s); | |
7635 | #endif | |
6502358f NC |
7636 | if (memchr(tmpbuf, ':', len)) |
7637 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
7638 | else { |
7639 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 7640 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
7641 | sv_catpvn(PL_subname,tmpbuf,len); |
7642 | } | |
09bef843 | 7643 | have_name = TRUE; |
5db06880 NC |
7644 | |
7645 | #ifdef PERL_MAD | |
7646 | ||
7647 | start_force(0); | |
7648 | CURMAD('X', nametoke); | |
7649 | CURMAD('_', tmpwhite); | |
7650 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
7651 | FALSE, TRUE, TRUE); | |
7652 | ||
7653 | s = SKIPSPACE2(d,tmpwhite); | |
7654 | #else | |
7655 | s = skipspace(d); | |
7656 | #endif | |
09bef843 | 7657 | } |
463ee0b2 | 7658 | else { |
09bef843 SB |
7659 | if (key == KEY_my) |
7660 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
7661 | PL_expect = XTERMBLOCK; | |
7662 | attrful = XATTRTERM; | |
76f68e9b | 7663 | sv_setpvs(PL_subname,"?"); |
09bef843 | 7664 | have_name = FALSE; |
463ee0b2 | 7665 | } |
4633a7c4 | 7666 | |
09bef843 SB |
7667 | if (key == KEY_format) { |
7668 | if (*s == '=') | |
7669 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 7670 | #ifdef PERL_MAD |
cd81e915 | 7671 | PL_thistoken = subtoken; |
5db06880 NC |
7672 | s = d; |
7673 | #else | |
09bef843 | 7674 | if (have_name) |
b1b65b59 JH |
7675 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7676 | FALSE, TRUE, TRUE); | |
5db06880 | 7677 | #endif |
09bef843 SB |
7678 | OPERATOR(FORMAT); |
7679 | } | |
79072805 | 7680 | |
09bef843 SB |
7681 | /* Look for a prototype */ |
7682 | if (*s == '(') { | |
d9f2850e RGS |
7683 | char *p; |
7684 | bool bad_proto = FALSE; | |
9e8d7757 RB |
7685 | bool in_brackets = FALSE; |
7686 | char greedy_proto = ' '; | |
7687 | bool proto_after_greedy_proto = FALSE; | |
7688 | bool must_be_last = FALSE; | |
7689 | bool underscore = FALSE; | |
aef2a98a | 7690 | bool seen_underscore = FALSE; |
197afce1 | 7691 | const bool warnillegalproto = ckWARN(WARN_ILLEGALPROTO); |
09bef843 | 7692 | |
5db06880 | 7693 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 7694 | if (!s) |
09bef843 | 7695 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 7696 | /* strip spaces and check for bad characters */ |
09bef843 SB |
7697 | d = SvPVX(PL_lex_stuff); |
7698 | tmp = 0; | |
d9f2850e RGS |
7699 | for (p = d; *p; ++p) { |
7700 | if (!isSPACE(*p)) { | |
7701 | d[tmp++] = *p; | |
9e8d7757 | 7702 | |
197afce1 | 7703 | if (warnillegalproto) { |
9e8d7757 RB |
7704 | if (must_be_last) |
7705 | proto_after_greedy_proto = TRUE; | |
7706 | if (!strchr("$@%*;[]&\\_", *p)) { | |
7707 | bad_proto = TRUE; | |
7708 | } | |
7709 | else { | |
7710 | if ( underscore ) { | |
7711 | if ( *p != ';' ) | |
7712 | bad_proto = TRUE; | |
7713 | underscore = FALSE; | |
7714 | } | |
7715 | if ( *p == '[' ) { | |
7716 | in_brackets = TRUE; | |
7717 | } | |
7718 | else if ( *p == ']' ) { | |
7719 | in_brackets = FALSE; | |
7720 | } | |
7721 | else if ( (*p == '@' || *p == '%') && | |
7722 | ( tmp < 2 || d[tmp-2] != '\\' ) && | |
7723 | !in_brackets ) { | |
7724 | must_be_last = TRUE; | |
7725 | greedy_proto = *p; | |
7726 | } | |
7727 | else if ( *p == '_' ) { | |
aef2a98a | 7728 | underscore = seen_underscore = TRUE; |
9e8d7757 RB |
7729 | } |
7730 | } | |
7731 | } | |
d37a9538 | 7732 | } |
09bef843 | 7733 | } |
d9f2850e | 7734 | d[tmp] = '\0'; |
9e8d7757 | 7735 | if (proto_after_greedy_proto) |
197afce1 | 7736 | Perl_warner(aTHX_ packWARN(WARN_ILLEGALPROTO), |
9e8d7757 RB |
7737 | "Prototype after '%c' for %"SVf" : %s", |
7738 | greedy_proto, SVfARG(PL_subname), d); | |
d9f2850e | 7739 | if (bad_proto) |
197afce1 | 7740 | Perl_warner(aTHX_ packWARN(WARN_ILLEGALPROTO), |
aef2a98a RGS |
7741 | "Illegal character %sin prototype for %"SVf" : %s", |
7742 | seen_underscore ? "after '_' " : "", | |
be2597df | 7743 | SVfARG(PL_subname), d); |
b162af07 | 7744 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 7745 | have_proto = TRUE; |
68dc0745 | 7746 | |
5db06880 NC |
7747 | #ifdef PERL_MAD |
7748 | start_force(0); | |
cd81e915 | 7749 | CURMAD('q', PL_thisopen); |
5db06880 | 7750 | CURMAD('_', tmpwhite); |
cd81e915 NC |
7751 | CURMAD('=', PL_thisstuff); |
7752 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
7753 | NEXTVAL_NEXTTOKE.opval = |
7754 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 7755 | PL_lex_stuff = NULL; |
5db06880 NC |
7756 | force_next(THING); |
7757 | ||
7758 | s = SKIPSPACE2(s,tmpwhite); | |
7759 | #else | |
09bef843 | 7760 | s = skipspace(s); |
5db06880 | 7761 | #endif |
4633a7c4 | 7762 | } |
09bef843 SB |
7763 | else |
7764 | have_proto = FALSE; | |
7765 | ||
7766 | if (*s == ':' && s[1] != ':') | |
7767 | PL_expect = attrful; | |
8e742a20 MHM |
7768 | else if (*s != '{' && key == KEY_sub) { |
7769 | if (!have_name) | |
7770 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
fd909433 | 7771 | else if (*s != ';' && *s != '}') |
be2597df | 7772 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 7773 | } |
09bef843 | 7774 | |
5db06880 NC |
7775 | #ifdef PERL_MAD |
7776 | start_force(0); | |
7777 | if (tmpwhite) { | |
7778 | if (PL_madskills) | |
6b29d1f5 | 7779 | curmad('^', newSVpvs("")); |
5db06880 NC |
7780 | CURMAD('_', tmpwhite); |
7781 | } | |
7782 | force_next(0); | |
7783 | ||
cd81e915 | 7784 | PL_thistoken = subtoken; |
5db06880 | 7785 | #else |
09bef843 | 7786 | if (have_proto) { |
9ded7720 | 7787 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 7788 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 7789 | PL_lex_stuff = NULL; |
09bef843 | 7790 | force_next(THING); |
68dc0745 | 7791 | } |
5db06880 | 7792 | #endif |
09bef843 | 7793 | if (!have_name) { |
49a54bbe NC |
7794 | if (PL_curstash) |
7795 | sv_setpvs(PL_subname, "__ANON__"); | |
7796 | else | |
7797 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 7798 | TOKEN(ANONSUB); |
4633a7c4 | 7799 | } |
5db06880 | 7800 | #ifndef PERL_MAD |
b1b65b59 JH |
7801 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7802 | FALSE, TRUE, TRUE); | |
5db06880 | 7803 | #endif |
09bef843 SB |
7804 | if (key == KEY_my) |
7805 | TOKEN(MYSUB); | |
7806 | TOKEN(SUB); | |
4633a7c4 | 7807 | } |
79072805 LW |
7808 | |
7809 | case KEY_system: | |
a0d0e21e | 7810 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
7811 | |
7812 | case KEY_symlink: | |
a0d0e21e | 7813 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
7814 | |
7815 | case KEY_syscall: | |
a0d0e21e | 7816 | LOP(OP_SYSCALL,XTERM); |
79072805 | 7817 | |
c07a80fd | 7818 | case KEY_sysopen: |
7819 | LOP(OP_SYSOPEN,XTERM); | |
7820 | ||
137443ea | 7821 | case KEY_sysseek: |
7822 | LOP(OP_SYSSEEK,XTERM); | |
7823 | ||
79072805 | 7824 | case KEY_sysread: |
a0d0e21e | 7825 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
7826 | |
7827 | case KEY_syswrite: | |
a0d0e21e | 7828 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
7829 | |
7830 | case KEY_tr: | |
7831 | s = scan_trans(s); | |
7832 | TERM(sublex_start()); | |
7833 | ||
7834 | case KEY_tell: | |
7835 | UNI(OP_TELL); | |
7836 | ||
7837 | case KEY_telldir: | |
7838 | UNI(OP_TELLDIR); | |
7839 | ||
463ee0b2 | 7840 | case KEY_tie: |
a0d0e21e | 7841 | LOP(OP_TIE,XTERM); |
463ee0b2 | 7842 | |
c07a80fd | 7843 | case KEY_tied: |
7844 | UNI(OP_TIED); | |
7845 | ||
79072805 LW |
7846 | case KEY_time: |
7847 | FUN0(OP_TIME); | |
7848 | ||
7849 | case KEY_times: | |
7850 | FUN0(OP_TMS); | |
7851 | ||
7852 | case KEY_truncate: | |
a0d0e21e | 7853 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
7854 | |
7855 | case KEY_uc: | |
7856 | UNI(OP_UC); | |
7857 | ||
7858 | case KEY_ucfirst: | |
7859 | UNI(OP_UCFIRST); | |
7860 | ||
463ee0b2 LW |
7861 | case KEY_untie: |
7862 | UNI(OP_UNTIE); | |
7863 | ||
79072805 | 7864 | case KEY_until: |
6154021b | 7865 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7866 | OPERATOR(UNTIL); |
7867 | ||
7868 | case KEY_unless: | |
6154021b | 7869 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7870 | OPERATOR(UNLESS); |
7871 | ||
7872 | case KEY_unlink: | |
a0d0e21e | 7873 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
7874 | |
7875 | case KEY_undef: | |
6f33ba73 | 7876 | UNIDOR(OP_UNDEF); |
79072805 LW |
7877 | |
7878 | case KEY_unpack: | |
a0d0e21e | 7879 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
7880 | |
7881 | case KEY_utime: | |
a0d0e21e | 7882 | LOP(OP_UTIME,XTERM); |
79072805 LW |
7883 | |
7884 | case KEY_umask: | |
6f33ba73 | 7885 | UNIDOR(OP_UMASK); |
79072805 LW |
7886 | |
7887 | case KEY_unshift: | |
a0d0e21e LW |
7888 | LOP(OP_UNSHIFT,XTERM); |
7889 | ||
7890 | case KEY_use: | |
468aa647 | 7891 | s = tokenize_use(1, s); |
a0d0e21e | 7892 | OPERATOR(USE); |
79072805 LW |
7893 | |
7894 | case KEY_values: | |
7895 | UNI(OP_VALUES); | |
7896 | ||
7897 | case KEY_vec: | |
a0d0e21e | 7898 | LOP(OP_VEC,XTERM); |
79072805 | 7899 | |
0d863452 | 7900 | case KEY_when: |
6154021b | 7901 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
7902 | OPERATOR(WHEN); |
7903 | ||
79072805 | 7904 | case KEY_while: |
6154021b | 7905 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7906 | OPERATOR(WHILE); |
7907 | ||
7908 | case KEY_warn: | |
3280af22 | 7909 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 7910 | LOP(OP_WARN,XTERM); |
79072805 LW |
7911 | |
7912 | case KEY_wait: | |
7913 | FUN0(OP_WAIT); | |
7914 | ||
7915 | case KEY_waitpid: | |
a0d0e21e | 7916 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
7917 | |
7918 | case KEY_wantarray: | |
7919 | FUN0(OP_WANTARRAY); | |
7920 | ||
7921 | case KEY_write: | |
9d116dd7 JH |
7922 | #ifdef EBCDIC |
7923 | { | |
df3728a2 JH |
7924 | char ctl_l[2]; |
7925 | ctl_l[0] = toCTRL('L'); | |
7926 | ctl_l[1] = '\0'; | |
fafc274c | 7927 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
7928 | } |
7929 | #else | |
fafc274c NC |
7930 | /* Make sure $^L is defined */ |
7931 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 7932 | #endif |
79072805 LW |
7933 | UNI(OP_ENTERWRITE); |
7934 | ||
7935 | case KEY_x: | |
3280af22 | 7936 | if (PL_expect == XOPERATOR) |
79072805 LW |
7937 | Mop(OP_REPEAT); |
7938 | check_uni(); | |
7939 | goto just_a_word; | |
7940 | ||
a0d0e21e | 7941 | case KEY_xor: |
6154021b | 7942 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
7943 | OPERATOR(OROP); |
7944 | ||
79072805 LW |
7945 | case KEY_y: |
7946 | s = scan_trans(s); | |
7947 | TERM(sublex_start()); | |
7948 | } | |
49dc05e3 | 7949 | }} |
79072805 | 7950 | } |
bf4acbe4 GS |
7951 | #ifdef __SC__ |
7952 | #pragma segment Main | |
7953 | #endif | |
79072805 | 7954 | |
e930465f JH |
7955 | static int |
7956 | S_pending_ident(pTHX) | |
8eceec63 | 7957 | { |
97aff369 | 7958 | dVAR; |
8eceec63 | 7959 | register char *d; |
bbd11bfc | 7960 | PADOFFSET tmp = 0; |
8eceec63 SC |
7961 | /* pit holds the identifier we read and pending_ident is reset */ |
7962 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
7963 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
7964 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 7965 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
7966 | PL_pending_ident = 0; |
7967 | ||
cd81e915 | 7968 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 7969 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 7970 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
7971 | |
7972 | /* if we're in a my(), we can't allow dynamics here. | |
7973 | $foo'bar has already been turned into $foo::bar, so | |
7974 | just check for colons. | |
7975 | ||
7976 | if it's a legal name, the OP is a PADANY. | |
7977 | */ | |
7978 | if (PL_in_my) { | |
7979 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 7980 | if (has_colon) |
8eceec63 SC |
7981 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
7982 | "variable %s in \"our\"", | |
7983 | PL_tokenbuf)); | |
d6447115 | 7984 | tmp = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7985 | } |
7986 | else { | |
9bde8eb0 | 7987 | if (has_colon) |
952306ac RGS |
7988 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
7989 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 7990 | |
6154021b | 7991 | pl_yylval.opval = newOP(OP_PADANY, 0); |
d6447115 | 7992 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7993 | return PRIVATEREF; |
7994 | } | |
7995 | } | |
7996 | ||
7997 | /* | |
7998 | build the ops for accesses to a my() variable. | |
7999 | ||
8000 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
8001 | then used in a comparison. This catches most, but not | |
8002 | all cases. For instance, it catches | |
8003 | sort { my($a); $a <=> $b } | |
8004 | but not | |
8005 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
8006 | (although why you'd do that is anyone's guess). | |
8007 | */ | |
8008 | ||
9bde8eb0 | 8009 | if (!has_colon) { |
8716503d | 8010 | if (!PL_in_my) |
f8f98e0a | 8011 | tmp = pad_findmy(PL_tokenbuf, tokenbuf_len, 0); |
8716503d | 8012 | if (tmp != NOT_IN_PAD) { |
8eceec63 | 8013 | /* might be an "our" variable" */ |
00b1698f | 8014 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 8015 | /* build ops for a bareword */ |
b64e5050 AL |
8016 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
8017 | HEK * const stashname = HvNAME_HEK(stash); | |
8018 | SV * const sym = newSVhek(stashname); | |
396482e1 | 8019 | sv_catpvs(sym, "::"); |
9bde8eb0 | 8020 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
8021 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
8022 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 8023 | gv_fetchsv(sym, |
8eceec63 SC |
8024 | (PL_in_eval |
8025 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 8026 | : GV_ADDMULTI |
8eceec63 SC |
8027 | ), |
8028 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
8029 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
8030 | : SVt_PVHV)); | |
8031 | return WORD; | |
8032 | } | |
8033 | ||
8034 | /* if it's a sort block and they're naming $a or $b */ | |
8035 | if (PL_last_lop_op == OP_SORT && | |
8036 | PL_tokenbuf[0] == '$' && | |
8037 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
8038 | && !PL_tokenbuf[2]) | |
8039 | { | |
8040 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
8041 | d < PL_bufend && *d != '\n'; | |
8042 | d++) | |
8043 | { | |
8044 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
8045 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
8046 | PL_tokenbuf); | |
8047 | } | |
8048 | } | |
8049 | } | |
8050 | ||
6154021b RGS |
8051 | pl_yylval.opval = newOP(OP_PADANY, 0); |
8052 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
8053 | return PRIVATEREF; |
8054 | } | |
8055 | } | |
8056 | ||
8057 | /* | |
8058 | Whine if they've said @foo in a doublequoted string, | |
8059 | and @foo isn't a variable we can find in the symbol | |
8060 | table. | |
8061 | */ | |
d824713b NC |
8062 | if (ckWARN(WARN_AMBIGUOUS) && |
8063 | pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
8064 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
8065 | SVt_PVAV); | |
8eceec63 | 8066 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
8067 | /* DO NOT warn for @- and @+ */ |
8068 | && !( PL_tokenbuf[2] == '\0' && | |
8069 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
8070 | ) | |
8eceec63 SC |
8071 | { |
8072 | /* Downgraded from fatal to warning 20000522 mjd */ | |
d824713b NC |
8073 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8074 | "Possible unintended interpolation of %s in string", | |
8075 | PL_tokenbuf); | |
8eceec63 SC |
8076 | } |
8077 | } | |
8078 | ||
8079 | /* build ops for a bareword */ | |
6154021b | 8080 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 8081 | tokenbuf_len - 1)); |
6154021b | 8082 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
223f0fb7 NC |
8083 | gv_fetchpvn_flags(PL_tokenbuf+1, tokenbuf_len - 1, |
8084 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD, | |
8085 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
8086 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
8087 | : SVt_PVHV)); | |
8eceec63 SC |
8088 | return WORD; |
8089 | } | |
8090 | ||
4c3bbe0f MHM |
8091 | /* |
8092 | * The following code was generated by perl_keyword.pl. | |
8093 | */ | |
e2e1dd5a | 8094 | |
79072805 | 8095 | I32 |
5458a98a | 8096 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 8097 | { |
952306ac | 8098 | dVAR; |
7918f24d NC |
8099 | |
8100 | PERL_ARGS_ASSERT_KEYWORD; | |
8101 | ||
4c3bbe0f MHM |
8102 | switch (len) |
8103 | { | |
8104 | case 1: /* 5 tokens of length 1 */ | |
8105 | switch (name[0]) | |
e2e1dd5a | 8106 | { |
4c3bbe0f MHM |
8107 | case 'm': |
8108 | { /* m */ | |
8109 | return KEY_m; | |
8110 | } | |
8111 | ||
4c3bbe0f MHM |
8112 | case 'q': |
8113 | { /* q */ | |
8114 | return KEY_q; | |
8115 | } | |
8116 | ||
4c3bbe0f MHM |
8117 | case 's': |
8118 | { /* s */ | |
8119 | return KEY_s; | |
8120 | } | |
8121 | ||
4c3bbe0f MHM |
8122 | case 'x': |
8123 | { /* x */ | |
8124 | return -KEY_x; | |
8125 | } | |
8126 | ||
4c3bbe0f MHM |
8127 | case 'y': |
8128 | { /* y */ | |
8129 | return KEY_y; | |
8130 | } | |
8131 | ||
4c3bbe0f MHM |
8132 | default: |
8133 | goto unknown; | |
e2e1dd5a | 8134 | } |
4c3bbe0f MHM |
8135 | |
8136 | case 2: /* 18 tokens of length 2 */ | |
8137 | switch (name[0]) | |
e2e1dd5a | 8138 | { |
4c3bbe0f MHM |
8139 | case 'd': |
8140 | if (name[1] == 'o') | |
8141 | { /* do */ | |
8142 | return KEY_do; | |
8143 | } | |
8144 | ||
8145 | goto unknown; | |
8146 | ||
8147 | case 'e': | |
8148 | if (name[1] == 'q') | |
8149 | { /* eq */ | |
8150 | return -KEY_eq; | |
8151 | } | |
8152 | ||
8153 | goto unknown; | |
8154 | ||
8155 | case 'g': | |
8156 | switch (name[1]) | |
8157 | { | |
8158 | case 'e': | |
8159 | { /* ge */ | |
8160 | return -KEY_ge; | |
8161 | } | |
8162 | ||
4c3bbe0f MHM |
8163 | case 't': |
8164 | { /* gt */ | |
8165 | return -KEY_gt; | |
8166 | } | |
8167 | ||
4c3bbe0f MHM |
8168 | default: |
8169 | goto unknown; | |
8170 | } | |
8171 | ||
8172 | case 'i': | |
8173 | if (name[1] == 'f') | |
8174 | { /* if */ | |
8175 | return KEY_if; | |
8176 | } | |
8177 | ||
8178 | goto unknown; | |
8179 | ||
8180 | case 'l': | |
8181 | switch (name[1]) | |
8182 | { | |
8183 | case 'c': | |
8184 | { /* lc */ | |
8185 | return -KEY_lc; | |
8186 | } | |
8187 | ||
4c3bbe0f MHM |
8188 | case 'e': |
8189 | { /* le */ | |
8190 | return -KEY_le; | |
8191 | } | |
8192 | ||
4c3bbe0f MHM |
8193 | case 't': |
8194 | { /* lt */ | |
8195 | return -KEY_lt; | |
8196 | } | |
8197 | ||
4c3bbe0f MHM |
8198 | default: |
8199 | goto unknown; | |
8200 | } | |
8201 | ||
8202 | case 'm': | |
8203 | if (name[1] == 'y') | |
8204 | { /* my */ | |
8205 | return KEY_my; | |
8206 | } | |
8207 | ||
8208 | goto unknown; | |
8209 | ||
8210 | case 'n': | |
8211 | switch (name[1]) | |
8212 | { | |
8213 | case 'e': | |
8214 | { /* ne */ | |
8215 | return -KEY_ne; | |
8216 | } | |
8217 | ||
4c3bbe0f MHM |
8218 | case 'o': |
8219 | { /* no */ | |
8220 | return KEY_no; | |
8221 | } | |
8222 | ||
4c3bbe0f MHM |
8223 | default: |
8224 | goto unknown; | |
8225 | } | |
8226 | ||
8227 | case 'o': | |
8228 | if (name[1] == 'r') | |
8229 | { /* or */ | |
8230 | return -KEY_or; | |
8231 | } | |
8232 | ||
8233 | goto unknown; | |
8234 | ||
8235 | case 'q': | |
8236 | switch (name[1]) | |
8237 | { | |
8238 | case 'q': | |
8239 | { /* qq */ | |
8240 | return KEY_qq; | |
8241 | } | |
8242 | ||
4c3bbe0f MHM |
8243 | case 'r': |
8244 | { /* qr */ | |
8245 | return KEY_qr; | |
8246 | } | |
8247 | ||
4c3bbe0f MHM |
8248 | case 'w': |
8249 | { /* qw */ | |
8250 | return KEY_qw; | |
8251 | } | |
8252 | ||
4c3bbe0f MHM |
8253 | case 'x': |
8254 | { /* qx */ | |
8255 | return KEY_qx; | |
8256 | } | |
8257 | ||
4c3bbe0f MHM |
8258 | default: |
8259 | goto unknown; | |
8260 | } | |
8261 | ||
8262 | case 't': | |
8263 | if (name[1] == 'r') | |
8264 | { /* tr */ | |
8265 | return KEY_tr; | |
8266 | } | |
8267 | ||
8268 | goto unknown; | |
8269 | ||
8270 | case 'u': | |
8271 | if (name[1] == 'c') | |
8272 | { /* uc */ | |
8273 | return -KEY_uc; | |
8274 | } | |
8275 | ||
8276 | goto unknown; | |
8277 | ||
8278 | default: | |
8279 | goto unknown; | |
e2e1dd5a | 8280 | } |
4c3bbe0f | 8281 | |
0d863452 | 8282 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 8283 | switch (name[0]) |
e2e1dd5a | 8284 | { |
4c3bbe0f MHM |
8285 | case 'E': |
8286 | if (name[1] == 'N' && | |
8287 | name[2] == 'D') | |
8288 | { /* END */ | |
8289 | return KEY_END; | |
8290 | } | |
8291 | ||
8292 | goto unknown; | |
8293 | ||
8294 | case 'a': | |
8295 | switch (name[1]) | |
8296 | { | |
8297 | case 'b': | |
8298 | if (name[2] == 's') | |
8299 | { /* abs */ | |
8300 | return -KEY_abs; | |
8301 | } | |
8302 | ||
8303 | goto unknown; | |
8304 | ||
8305 | case 'n': | |
8306 | if (name[2] == 'd') | |
8307 | { /* and */ | |
8308 | return -KEY_and; | |
8309 | } | |
8310 | ||
8311 | goto unknown; | |
8312 | ||
8313 | default: | |
8314 | goto unknown; | |
8315 | } | |
8316 | ||
8317 | case 'c': | |
8318 | switch (name[1]) | |
8319 | { | |
8320 | case 'h': | |
8321 | if (name[2] == 'r') | |
8322 | { /* chr */ | |
8323 | return -KEY_chr; | |
8324 | } | |
8325 | ||
8326 | goto unknown; | |
8327 | ||
8328 | case 'm': | |
8329 | if (name[2] == 'p') | |
8330 | { /* cmp */ | |
8331 | return -KEY_cmp; | |
8332 | } | |
8333 | ||
8334 | goto unknown; | |
8335 | ||
8336 | case 'o': | |
8337 | if (name[2] == 's') | |
8338 | { /* cos */ | |
8339 | return -KEY_cos; | |
8340 | } | |
8341 | ||
8342 | goto unknown; | |
8343 | ||
8344 | default: | |
8345 | goto unknown; | |
8346 | } | |
8347 | ||
8348 | case 'd': | |
8349 | if (name[1] == 'i' && | |
8350 | name[2] == 'e') | |
8351 | { /* die */ | |
8352 | return -KEY_die; | |
8353 | } | |
8354 | ||
8355 | goto unknown; | |
8356 | ||
8357 | case 'e': | |
8358 | switch (name[1]) | |
8359 | { | |
8360 | case 'o': | |
8361 | if (name[2] == 'f') | |
8362 | { /* eof */ | |
8363 | return -KEY_eof; | |
8364 | } | |
8365 | ||
8366 | goto unknown; | |
8367 | ||
4c3bbe0f MHM |
8368 | case 'x': |
8369 | if (name[2] == 'p') | |
8370 | { /* exp */ | |
8371 | return -KEY_exp; | |
8372 | } | |
8373 | ||
8374 | goto unknown; | |
8375 | ||
8376 | default: | |
8377 | goto unknown; | |
8378 | } | |
8379 | ||
8380 | case 'f': | |
8381 | if (name[1] == 'o' && | |
8382 | name[2] == 'r') | |
8383 | { /* for */ | |
8384 | return KEY_for; | |
8385 | } | |
8386 | ||
8387 | goto unknown; | |
8388 | ||
8389 | case 'h': | |
8390 | if (name[1] == 'e' && | |
8391 | name[2] == 'x') | |
8392 | { /* hex */ | |
8393 | return -KEY_hex; | |
8394 | } | |
8395 | ||
8396 | goto unknown; | |
8397 | ||
8398 | case 'i': | |
8399 | if (name[1] == 'n' && | |
8400 | name[2] == 't') | |
8401 | { /* int */ | |
8402 | return -KEY_int; | |
8403 | } | |
8404 | ||
8405 | goto unknown; | |
8406 | ||
8407 | case 'l': | |
8408 | if (name[1] == 'o' && | |
8409 | name[2] == 'g') | |
8410 | { /* log */ | |
8411 | return -KEY_log; | |
8412 | } | |
8413 | ||
8414 | goto unknown; | |
8415 | ||
8416 | case 'm': | |
8417 | if (name[1] == 'a' && | |
8418 | name[2] == 'p') | |
8419 | { /* map */ | |
8420 | return KEY_map; | |
8421 | } | |
8422 | ||
8423 | goto unknown; | |
8424 | ||
8425 | case 'n': | |
8426 | if (name[1] == 'o' && | |
8427 | name[2] == 't') | |
8428 | { /* not */ | |
8429 | return -KEY_not; | |
8430 | } | |
8431 | ||
8432 | goto unknown; | |
8433 | ||
8434 | case 'o': | |
8435 | switch (name[1]) | |
8436 | { | |
8437 | case 'c': | |
8438 | if (name[2] == 't') | |
8439 | { /* oct */ | |
8440 | return -KEY_oct; | |
8441 | } | |
8442 | ||
8443 | goto unknown; | |
8444 | ||
8445 | case 'r': | |
8446 | if (name[2] == 'd') | |
8447 | { /* ord */ | |
8448 | return -KEY_ord; | |
8449 | } | |
8450 | ||
8451 | goto unknown; | |
8452 | ||
8453 | case 'u': | |
8454 | if (name[2] == 'r') | |
8455 | { /* our */ | |
8456 | return KEY_our; | |
8457 | } | |
8458 | ||
8459 | goto unknown; | |
8460 | ||
8461 | default: | |
8462 | goto unknown; | |
8463 | } | |
8464 | ||
8465 | case 'p': | |
8466 | if (name[1] == 'o') | |
8467 | { | |
8468 | switch (name[2]) | |
8469 | { | |
8470 | case 'p': | |
8471 | { /* pop */ | |
8472 | return -KEY_pop; | |
8473 | } | |
8474 | ||
4c3bbe0f MHM |
8475 | case 's': |
8476 | { /* pos */ | |
8477 | return KEY_pos; | |
8478 | } | |
8479 | ||
4c3bbe0f MHM |
8480 | default: |
8481 | goto unknown; | |
8482 | } | |
8483 | } | |
8484 | ||
8485 | goto unknown; | |
8486 | ||
8487 | case 'r': | |
8488 | if (name[1] == 'e' && | |
8489 | name[2] == 'f') | |
8490 | { /* ref */ | |
8491 | return -KEY_ref; | |
8492 | } | |
8493 | ||
8494 | goto unknown; | |
8495 | ||
8496 | case 's': | |
8497 | switch (name[1]) | |
8498 | { | |
0d863452 RH |
8499 | case 'a': |
8500 | if (name[2] == 'y') | |
8501 | { /* say */ | |
e3e804c9 | 8502 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
8503 | } |
8504 | ||
8505 | goto unknown; | |
8506 | ||
4c3bbe0f MHM |
8507 | case 'i': |
8508 | if (name[2] == 'n') | |
8509 | { /* sin */ | |
8510 | return -KEY_sin; | |
8511 | } | |
8512 | ||
8513 | goto unknown; | |
8514 | ||
8515 | case 'u': | |
8516 | if (name[2] == 'b') | |
8517 | { /* sub */ | |
8518 | return KEY_sub; | |
8519 | } | |
8520 | ||
8521 | goto unknown; | |
8522 | ||
8523 | default: | |
8524 | goto unknown; | |
8525 | } | |
8526 | ||
8527 | case 't': | |
8528 | if (name[1] == 'i' && | |
8529 | name[2] == 'e') | |
8530 | { /* tie */ | |
1db4d195 | 8531 | return -KEY_tie; |
4c3bbe0f MHM |
8532 | } |
8533 | ||
8534 | goto unknown; | |
8535 | ||
8536 | case 'u': | |
8537 | if (name[1] == 's' && | |
8538 | name[2] == 'e') | |
8539 | { /* use */ | |
8540 | return KEY_use; | |
8541 | } | |
8542 | ||
8543 | goto unknown; | |
8544 | ||
8545 | case 'v': | |
8546 | if (name[1] == 'e' && | |
8547 | name[2] == 'c') | |
8548 | { /* vec */ | |
8549 | return -KEY_vec; | |
8550 | } | |
8551 | ||
8552 | goto unknown; | |
8553 | ||
8554 | case 'x': | |
8555 | if (name[1] == 'o' && | |
8556 | name[2] == 'r') | |
8557 | { /* xor */ | |
8558 | return -KEY_xor; | |
8559 | } | |
8560 | ||
8561 | goto unknown; | |
8562 | ||
8563 | default: | |
8564 | goto unknown; | |
e2e1dd5a | 8565 | } |
4c3bbe0f | 8566 | |
0d863452 | 8567 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 8568 | switch (name[0]) |
e2e1dd5a | 8569 | { |
4c3bbe0f MHM |
8570 | case 'C': |
8571 | if (name[1] == 'O' && | |
8572 | name[2] == 'R' && | |
8573 | name[3] == 'E') | |
8574 | { /* CORE */ | |
8575 | return -KEY_CORE; | |
8576 | } | |
8577 | ||
8578 | goto unknown; | |
8579 | ||
8580 | case 'I': | |
8581 | if (name[1] == 'N' && | |
8582 | name[2] == 'I' && | |
8583 | name[3] == 'T') | |
8584 | { /* INIT */ | |
8585 | return KEY_INIT; | |
8586 | } | |
8587 | ||
8588 | goto unknown; | |
8589 | ||
8590 | case 'b': | |
8591 | if (name[1] == 'i' && | |
8592 | name[2] == 'n' && | |
8593 | name[3] == 'd') | |
8594 | { /* bind */ | |
8595 | return -KEY_bind; | |
8596 | } | |
8597 | ||
8598 | goto unknown; | |
8599 | ||
8600 | case 'c': | |
8601 | if (name[1] == 'h' && | |
8602 | name[2] == 'o' && | |
8603 | name[3] == 'p') | |
8604 | { /* chop */ | |
8605 | return -KEY_chop; | |
8606 | } | |
8607 | ||
8608 | goto unknown; | |
8609 | ||
8610 | case 'd': | |
8611 | if (name[1] == 'u' && | |
8612 | name[2] == 'm' && | |
8613 | name[3] == 'p') | |
8614 | { /* dump */ | |
8615 | return -KEY_dump; | |
8616 | } | |
8617 | ||
8618 | goto unknown; | |
8619 | ||
8620 | case 'e': | |
8621 | switch (name[1]) | |
8622 | { | |
8623 | case 'a': | |
8624 | if (name[2] == 'c' && | |
8625 | name[3] == 'h') | |
8626 | { /* each */ | |
8627 | return -KEY_each; | |
8628 | } | |
8629 | ||
8630 | goto unknown; | |
8631 | ||
8632 | case 'l': | |
8633 | if (name[2] == 's' && | |
8634 | name[3] == 'e') | |
8635 | { /* else */ | |
8636 | return KEY_else; | |
8637 | } | |
8638 | ||
8639 | goto unknown; | |
8640 | ||
8641 | case 'v': | |
8642 | if (name[2] == 'a' && | |
8643 | name[3] == 'l') | |
8644 | { /* eval */ | |
8645 | return KEY_eval; | |
8646 | } | |
8647 | ||
8648 | goto unknown; | |
8649 | ||
8650 | case 'x': | |
8651 | switch (name[2]) | |
8652 | { | |
8653 | case 'e': | |
8654 | if (name[3] == 'c') | |
8655 | { /* exec */ | |
8656 | return -KEY_exec; | |
8657 | } | |
8658 | ||
8659 | goto unknown; | |
8660 | ||
8661 | case 'i': | |
8662 | if (name[3] == 't') | |
8663 | { /* exit */ | |
8664 | return -KEY_exit; | |
8665 | } | |
8666 | ||
8667 | goto unknown; | |
8668 | ||
8669 | default: | |
8670 | goto unknown; | |
8671 | } | |
8672 | ||
8673 | default: | |
8674 | goto unknown; | |
8675 | } | |
8676 | ||
8677 | case 'f': | |
8678 | if (name[1] == 'o' && | |
8679 | name[2] == 'r' && | |
8680 | name[3] == 'k') | |
8681 | { /* fork */ | |
8682 | return -KEY_fork; | |
8683 | } | |
8684 | ||
8685 | goto unknown; | |
8686 | ||
8687 | case 'g': | |
8688 | switch (name[1]) | |
8689 | { | |
8690 | case 'e': | |
8691 | if (name[2] == 't' && | |
8692 | name[3] == 'c') | |
8693 | { /* getc */ | |
8694 | return -KEY_getc; | |
8695 | } | |
8696 | ||
8697 | goto unknown; | |
8698 | ||
8699 | case 'l': | |
8700 | if (name[2] == 'o' && | |
8701 | name[3] == 'b') | |
8702 | { /* glob */ | |
8703 | return KEY_glob; | |
8704 | } | |
8705 | ||
8706 | goto unknown; | |
8707 | ||
8708 | case 'o': | |
8709 | if (name[2] == 't' && | |
8710 | name[3] == 'o') | |
8711 | { /* goto */ | |
8712 | return KEY_goto; | |
8713 | } | |
8714 | ||
8715 | goto unknown; | |
8716 | ||
8717 | case 'r': | |
8718 | if (name[2] == 'e' && | |
8719 | name[3] == 'p') | |
8720 | { /* grep */ | |
8721 | return KEY_grep; | |
8722 | } | |
8723 | ||
8724 | goto unknown; | |
8725 | ||
8726 | default: | |
8727 | goto unknown; | |
8728 | } | |
8729 | ||
8730 | case 'j': | |
8731 | if (name[1] == 'o' && | |
8732 | name[2] == 'i' && | |
8733 | name[3] == 'n') | |
8734 | { /* join */ | |
8735 | return -KEY_join; | |
8736 | } | |
8737 | ||
8738 | goto unknown; | |
8739 | ||
8740 | case 'k': | |
8741 | switch (name[1]) | |
8742 | { | |
8743 | case 'e': | |
8744 | if (name[2] == 'y' && | |
8745 | name[3] == 's') | |
8746 | { /* keys */ | |
8747 | return -KEY_keys; | |
8748 | } | |
8749 | ||
8750 | goto unknown; | |
8751 | ||
8752 | case 'i': | |
8753 | if (name[2] == 'l' && | |
8754 | name[3] == 'l') | |
8755 | { /* kill */ | |
8756 | return -KEY_kill; | |
8757 | } | |
8758 | ||
8759 | goto unknown; | |
8760 | ||
8761 | default: | |
8762 | goto unknown; | |
8763 | } | |
8764 | ||
8765 | case 'l': | |
8766 | switch (name[1]) | |
8767 | { | |
8768 | case 'a': | |
8769 | if (name[2] == 's' && | |
8770 | name[3] == 't') | |
8771 | { /* last */ | |
8772 | return KEY_last; | |
8773 | } | |
8774 | ||
8775 | goto unknown; | |
8776 | ||
8777 | case 'i': | |
8778 | if (name[2] == 'n' && | |
8779 | name[3] == 'k') | |
8780 | { /* link */ | |
8781 | return -KEY_link; | |
8782 | } | |
8783 | ||
8784 | goto unknown; | |
8785 | ||
8786 | case 'o': | |
8787 | if (name[2] == 'c' && | |
8788 | name[3] == 'k') | |
8789 | { /* lock */ | |
8790 | return -KEY_lock; | |
8791 | } | |
8792 | ||
8793 | goto unknown; | |
8794 | ||
8795 | default: | |
8796 | goto unknown; | |
8797 | } | |
8798 | ||
8799 | case 'n': | |
8800 | if (name[1] == 'e' && | |
8801 | name[2] == 'x' && | |
8802 | name[3] == 't') | |
8803 | { /* next */ | |
8804 | return KEY_next; | |
8805 | } | |
8806 | ||
8807 | goto unknown; | |
8808 | ||
8809 | case 'o': | |
8810 | if (name[1] == 'p' && | |
8811 | name[2] == 'e' && | |
8812 | name[3] == 'n') | |
8813 | { /* open */ | |
8814 | return -KEY_open; | |
8815 | } | |
8816 | ||
8817 | goto unknown; | |
8818 | ||
8819 | case 'p': | |
8820 | switch (name[1]) | |
8821 | { | |
8822 | case 'a': | |
8823 | if (name[2] == 'c' && | |
8824 | name[3] == 'k') | |
8825 | { /* pack */ | |
8826 | return -KEY_pack; | |
8827 | } | |
8828 | ||
8829 | goto unknown; | |
8830 | ||
8831 | case 'i': | |
8832 | if (name[2] == 'p' && | |
8833 | name[3] == 'e') | |
8834 | { /* pipe */ | |
8835 | return -KEY_pipe; | |
8836 | } | |
8837 | ||
8838 | goto unknown; | |
8839 | ||
8840 | case 'u': | |
8841 | if (name[2] == 's' && | |
8842 | name[3] == 'h') | |
8843 | { /* push */ | |
8844 | return -KEY_push; | |
8845 | } | |
8846 | ||
8847 | goto unknown; | |
8848 | ||
8849 | default: | |
8850 | goto unknown; | |
8851 | } | |
8852 | ||
8853 | case 'r': | |
8854 | switch (name[1]) | |
8855 | { | |
8856 | case 'a': | |
8857 | if (name[2] == 'n' && | |
8858 | name[3] == 'd') | |
8859 | { /* rand */ | |
8860 | return -KEY_rand; | |
8861 | } | |
8862 | ||
8863 | goto unknown; | |
8864 | ||
8865 | case 'e': | |
8866 | switch (name[2]) | |
8867 | { | |
8868 | case 'a': | |
8869 | if (name[3] == 'd') | |
8870 | { /* read */ | |
8871 | return -KEY_read; | |
8872 | } | |
8873 | ||
8874 | goto unknown; | |
8875 | ||
8876 | case 'c': | |
8877 | if (name[3] == 'v') | |
8878 | { /* recv */ | |
8879 | return -KEY_recv; | |
8880 | } | |
8881 | ||
8882 | goto unknown; | |
8883 | ||
8884 | case 'd': | |
8885 | if (name[3] == 'o') | |
8886 | { /* redo */ | |
8887 | return KEY_redo; | |
8888 | } | |
8889 | ||
8890 | goto unknown; | |
8891 | ||
8892 | default: | |
8893 | goto unknown; | |
8894 | } | |
8895 | ||
8896 | default: | |
8897 | goto unknown; | |
8898 | } | |
8899 | ||
8900 | case 's': | |
8901 | switch (name[1]) | |
8902 | { | |
8903 | case 'e': | |
8904 | switch (name[2]) | |
8905 | { | |
8906 | case 'e': | |
8907 | if (name[3] == 'k') | |
8908 | { /* seek */ | |
8909 | return -KEY_seek; | |
8910 | } | |
8911 | ||
8912 | goto unknown; | |
8913 | ||
8914 | case 'n': | |
8915 | if (name[3] == 'd') | |
8916 | { /* send */ | |
8917 | return -KEY_send; | |
8918 | } | |
8919 | ||
8920 | goto unknown; | |
8921 | ||
8922 | default: | |
8923 | goto unknown; | |
8924 | } | |
8925 | ||
8926 | case 'o': | |
8927 | if (name[2] == 'r' && | |
8928 | name[3] == 't') | |
8929 | { /* sort */ | |
8930 | return KEY_sort; | |
8931 | } | |
8932 | ||
8933 | goto unknown; | |
8934 | ||
8935 | case 'q': | |
8936 | if (name[2] == 'r' && | |
8937 | name[3] == 't') | |
8938 | { /* sqrt */ | |
8939 | return -KEY_sqrt; | |
8940 | } | |
8941 | ||
8942 | goto unknown; | |
8943 | ||
8944 | case 't': | |
8945 | if (name[2] == 'a' && | |
8946 | name[3] == 't') | |
8947 | { /* stat */ | |
8948 | return -KEY_stat; | |
8949 | } | |
8950 | ||
8951 | goto unknown; | |
8952 | ||
8953 | default: | |
8954 | goto unknown; | |
8955 | } | |
8956 | ||
8957 | case 't': | |
8958 | switch (name[1]) | |
8959 | { | |
8960 | case 'e': | |
8961 | if (name[2] == 'l' && | |
8962 | name[3] == 'l') | |
8963 | { /* tell */ | |
8964 | return -KEY_tell; | |
8965 | } | |
8966 | ||
8967 | goto unknown; | |
8968 | ||
8969 | case 'i': | |
8970 | switch (name[2]) | |
8971 | { | |
8972 | case 'e': | |
8973 | if (name[3] == 'd') | |
8974 | { /* tied */ | |
1db4d195 | 8975 | return -KEY_tied; |
4c3bbe0f MHM |
8976 | } |
8977 | ||
8978 | goto unknown; | |
8979 | ||
8980 | case 'm': | |
8981 | if (name[3] == 'e') | |
8982 | { /* time */ | |
8983 | return -KEY_time; | |
8984 | } | |
8985 | ||
8986 | goto unknown; | |
8987 | ||
8988 | default: | |
8989 | goto unknown; | |
8990 | } | |
8991 | ||
8992 | default: | |
8993 | goto unknown; | |
8994 | } | |
8995 | ||
8996 | case 'w': | |
0d863452 | 8997 | switch (name[1]) |
4c3bbe0f | 8998 | { |
0d863452 | 8999 | case 'a': |
952306ac RGS |
9000 | switch (name[2]) |
9001 | { | |
9002 | case 'i': | |
9003 | if (name[3] == 't') | |
9004 | { /* wait */ | |
9005 | return -KEY_wait; | |
9006 | } | |
4c3bbe0f | 9007 | |
952306ac | 9008 | goto unknown; |
4c3bbe0f | 9009 | |
952306ac RGS |
9010 | case 'r': |
9011 | if (name[3] == 'n') | |
9012 | { /* warn */ | |
9013 | return -KEY_warn; | |
9014 | } | |
4c3bbe0f | 9015 | |
952306ac | 9016 | goto unknown; |
4c3bbe0f | 9017 | |
952306ac RGS |
9018 | default: |
9019 | goto unknown; | |
9020 | } | |
0d863452 RH |
9021 | |
9022 | case 'h': | |
9023 | if (name[2] == 'e' && | |
9024 | name[3] == 'n') | |
9025 | { /* when */ | |
5458a98a | 9026 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 9027 | } |
4c3bbe0f | 9028 | |
952306ac | 9029 | goto unknown; |
4c3bbe0f | 9030 | |
952306ac RGS |
9031 | default: |
9032 | goto unknown; | |
9033 | } | |
4c3bbe0f | 9034 | |
0d863452 RH |
9035 | default: |
9036 | goto unknown; | |
9037 | } | |
9038 | ||
952306ac | 9039 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 9040 | switch (name[0]) |
e2e1dd5a | 9041 | { |
4c3bbe0f MHM |
9042 | case 'B': |
9043 | if (name[1] == 'E' && | |
9044 | name[2] == 'G' && | |
9045 | name[3] == 'I' && | |
9046 | name[4] == 'N') | |
9047 | { /* BEGIN */ | |
9048 | return KEY_BEGIN; | |
9049 | } | |
9050 | ||
9051 | goto unknown; | |
9052 | ||
9053 | case 'C': | |
9054 | if (name[1] == 'H' && | |
9055 | name[2] == 'E' && | |
9056 | name[3] == 'C' && | |
9057 | name[4] == 'K') | |
9058 | { /* CHECK */ | |
9059 | return KEY_CHECK; | |
9060 | } | |
9061 | ||
9062 | goto unknown; | |
9063 | ||
9064 | case 'a': | |
9065 | switch (name[1]) | |
9066 | { | |
9067 | case 'l': | |
9068 | if (name[2] == 'a' && | |
9069 | name[3] == 'r' && | |
9070 | name[4] == 'm') | |
9071 | { /* alarm */ | |
9072 | return -KEY_alarm; | |
9073 | } | |
9074 | ||
9075 | goto unknown; | |
9076 | ||
9077 | case 't': | |
9078 | if (name[2] == 'a' && | |
9079 | name[3] == 'n' && | |
9080 | name[4] == '2') | |
9081 | { /* atan2 */ | |
9082 | return -KEY_atan2; | |
9083 | } | |
9084 | ||
9085 | goto unknown; | |
9086 | ||
9087 | default: | |
9088 | goto unknown; | |
9089 | } | |
9090 | ||
9091 | case 'b': | |
0d863452 RH |
9092 | switch (name[1]) |
9093 | { | |
9094 | case 'l': | |
9095 | if (name[2] == 'e' && | |
952306ac RGS |
9096 | name[3] == 's' && |
9097 | name[4] == 's') | |
9098 | { /* bless */ | |
9099 | return -KEY_bless; | |
9100 | } | |
4c3bbe0f | 9101 | |
952306ac | 9102 | goto unknown; |
4c3bbe0f | 9103 | |
0d863452 RH |
9104 | case 'r': |
9105 | if (name[2] == 'e' && | |
9106 | name[3] == 'a' && | |
9107 | name[4] == 'k') | |
9108 | { /* break */ | |
5458a98a | 9109 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
9110 | } |
9111 | ||
9112 | goto unknown; | |
9113 | ||
9114 | default: | |
9115 | goto unknown; | |
9116 | } | |
9117 | ||
4c3bbe0f MHM |
9118 | case 'c': |
9119 | switch (name[1]) | |
9120 | { | |
9121 | case 'h': | |
9122 | switch (name[2]) | |
9123 | { | |
9124 | case 'd': | |
9125 | if (name[3] == 'i' && | |
9126 | name[4] == 'r') | |
9127 | { /* chdir */ | |
9128 | return -KEY_chdir; | |
9129 | } | |
9130 | ||
9131 | goto unknown; | |
9132 | ||
9133 | case 'm': | |
9134 | if (name[3] == 'o' && | |
9135 | name[4] == 'd') | |
9136 | { /* chmod */ | |
9137 | return -KEY_chmod; | |
9138 | } | |
9139 | ||
9140 | goto unknown; | |
9141 | ||
9142 | case 'o': | |
9143 | switch (name[3]) | |
9144 | { | |
9145 | case 'm': | |
9146 | if (name[4] == 'p') | |
9147 | { /* chomp */ | |
9148 | return -KEY_chomp; | |
9149 | } | |
9150 | ||
9151 | goto unknown; | |
9152 | ||
9153 | case 'w': | |
9154 | if (name[4] == 'n') | |
9155 | { /* chown */ | |
9156 | return -KEY_chown; | |
9157 | } | |
9158 | ||
9159 | goto unknown; | |
9160 | ||
9161 | default: | |
9162 | goto unknown; | |
9163 | } | |
9164 | ||
9165 | default: | |
9166 | goto unknown; | |
9167 | } | |
9168 | ||
9169 | case 'l': | |
9170 | if (name[2] == 'o' && | |
9171 | name[3] == 's' && | |
9172 | name[4] == 'e') | |
9173 | { /* close */ | |
9174 | return -KEY_close; | |
9175 | } | |
9176 | ||
9177 | goto unknown; | |
9178 | ||
9179 | case 'r': | |
9180 | if (name[2] == 'y' && | |
9181 | name[3] == 'p' && | |
9182 | name[4] == 't') | |
9183 | { /* crypt */ | |
9184 | return -KEY_crypt; | |
9185 | } | |
9186 | ||
9187 | goto unknown; | |
9188 | ||
9189 | default: | |
9190 | goto unknown; | |
9191 | } | |
9192 | ||
9193 | case 'e': | |
9194 | if (name[1] == 'l' && | |
9195 | name[2] == 's' && | |
9196 | name[3] == 'i' && | |
9197 | name[4] == 'f') | |
9198 | { /* elsif */ | |
9199 | return KEY_elsif; | |
9200 | } | |
9201 | ||
9202 | goto unknown; | |
9203 | ||
9204 | case 'f': | |
9205 | switch (name[1]) | |
9206 | { | |
9207 | case 'c': | |
9208 | if (name[2] == 'n' && | |
9209 | name[3] == 't' && | |
9210 | name[4] == 'l') | |
9211 | { /* fcntl */ | |
9212 | return -KEY_fcntl; | |
9213 | } | |
9214 | ||
9215 | goto unknown; | |
9216 | ||
9217 | case 'l': | |
9218 | if (name[2] == 'o' && | |
9219 | name[3] == 'c' && | |
9220 | name[4] == 'k') | |
9221 | { /* flock */ | |
9222 | return -KEY_flock; | |
9223 | } | |
9224 | ||
9225 | goto unknown; | |
9226 | ||
9227 | default: | |
9228 | goto unknown; | |
9229 | } | |
9230 | ||
0d863452 RH |
9231 | case 'g': |
9232 | if (name[1] == 'i' && | |
9233 | name[2] == 'v' && | |
9234 | name[3] == 'e' && | |
9235 | name[4] == 'n') | |
9236 | { /* given */ | |
5458a98a | 9237 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
9238 | } |
9239 | ||
9240 | goto unknown; | |
9241 | ||
4c3bbe0f MHM |
9242 | case 'i': |
9243 | switch (name[1]) | |
9244 | { | |
9245 | case 'n': | |
9246 | if (name[2] == 'd' && | |
9247 | name[3] == 'e' && | |
9248 | name[4] == 'x') | |
9249 | { /* index */ | |
9250 | return -KEY_index; | |
9251 | } | |
9252 | ||
9253 | goto unknown; | |
9254 | ||
9255 | case 'o': | |
9256 | if (name[2] == 'c' && | |
9257 | name[3] == 't' && | |
9258 | name[4] == 'l') | |
9259 | { /* ioctl */ | |
9260 | return -KEY_ioctl; | |
9261 | } | |
9262 | ||
9263 | goto unknown; | |
9264 | ||
9265 | default: | |
9266 | goto unknown; | |
9267 | } | |
9268 | ||
9269 | case 'l': | |
9270 | switch (name[1]) | |
9271 | { | |
9272 | case 'o': | |
9273 | if (name[2] == 'c' && | |
9274 | name[3] == 'a' && | |
9275 | name[4] == 'l') | |
9276 | { /* local */ | |
9277 | return KEY_local; | |
9278 | } | |
9279 | ||
9280 | goto unknown; | |
9281 | ||
9282 | case 's': | |
9283 | if (name[2] == 't' && | |
9284 | name[3] == 'a' && | |
9285 | name[4] == 't') | |
9286 | { /* lstat */ | |
9287 | return -KEY_lstat; | |
9288 | } | |
9289 | ||
9290 | goto unknown; | |
9291 | ||
9292 | default: | |
9293 | goto unknown; | |
9294 | } | |
9295 | ||
9296 | case 'm': | |
9297 | if (name[1] == 'k' && | |
9298 | name[2] == 'd' && | |
9299 | name[3] == 'i' && | |
9300 | name[4] == 'r') | |
9301 | { /* mkdir */ | |
9302 | return -KEY_mkdir; | |
9303 | } | |
9304 | ||
9305 | goto unknown; | |
9306 | ||
9307 | case 'p': | |
9308 | if (name[1] == 'r' && | |
9309 | name[2] == 'i' && | |
9310 | name[3] == 'n' && | |
9311 | name[4] == 't') | |
9312 | { /* print */ | |
9313 | return KEY_print; | |
9314 | } | |
9315 | ||
9316 | goto unknown; | |
9317 | ||
9318 | case 'r': | |
9319 | switch (name[1]) | |
9320 | { | |
9321 | case 'e': | |
9322 | if (name[2] == 's' && | |
9323 | name[3] == 'e' && | |
9324 | name[4] == 't') | |
9325 | { /* reset */ | |
9326 | return -KEY_reset; | |
9327 | } | |
9328 | ||
9329 | goto unknown; | |
9330 | ||
9331 | case 'm': | |
9332 | if (name[2] == 'd' && | |
9333 | name[3] == 'i' && | |
9334 | name[4] == 'r') | |
9335 | { /* rmdir */ | |
9336 | return -KEY_rmdir; | |
9337 | } | |
9338 | ||
9339 | goto unknown; | |
9340 | ||
9341 | default: | |
9342 | goto unknown; | |
9343 | } | |
9344 | ||
9345 | case 's': | |
9346 | switch (name[1]) | |
9347 | { | |
9348 | case 'e': | |
9349 | if (name[2] == 'm' && | |
9350 | name[3] == 'o' && | |
9351 | name[4] == 'p') | |
9352 | { /* semop */ | |
9353 | return -KEY_semop; | |
9354 | } | |
9355 | ||
9356 | goto unknown; | |
9357 | ||
9358 | case 'h': | |
9359 | if (name[2] == 'i' && | |
9360 | name[3] == 'f' && | |
9361 | name[4] == 't') | |
9362 | { /* shift */ | |
9363 | return -KEY_shift; | |
9364 | } | |
9365 | ||
9366 | goto unknown; | |
9367 | ||
9368 | case 'l': | |
9369 | if (name[2] == 'e' && | |
9370 | name[3] == 'e' && | |
9371 | name[4] == 'p') | |
9372 | { /* sleep */ | |
9373 | return -KEY_sleep; | |
9374 | } | |
9375 | ||
9376 | goto unknown; | |
9377 | ||
9378 | case 'p': | |
9379 | if (name[2] == 'l' && | |
9380 | name[3] == 'i' && | |
9381 | name[4] == 't') | |
9382 | { /* split */ | |
9383 | return KEY_split; | |
9384 | } | |
9385 | ||
9386 | goto unknown; | |
9387 | ||
9388 | case 'r': | |
9389 | if (name[2] == 'a' && | |
9390 | name[3] == 'n' && | |
9391 | name[4] == 'd') | |
9392 | { /* srand */ | |
9393 | return -KEY_srand; | |
9394 | } | |
9395 | ||
9396 | goto unknown; | |
9397 | ||
9398 | case 't': | |
952306ac RGS |
9399 | switch (name[2]) |
9400 | { | |
9401 | case 'a': | |
9402 | if (name[3] == 't' && | |
9403 | name[4] == 'e') | |
9404 | { /* state */ | |
5458a98a | 9405 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 9406 | } |
4c3bbe0f | 9407 | |
952306ac RGS |
9408 | goto unknown; |
9409 | ||
9410 | case 'u': | |
9411 | if (name[3] == 'd' && | |
9412 | name[4] == 'y') | |
9413 | { /* study */ | |
9414 | return KEY_study; | |
9415 | } | |
9416 | ||
9417 | goto unknown; | |
9418 | ||
9419 | default: | |
9420 | goto unknown; | |
9421 | } | |
4c3bbe0f MHM |
9422 | |
9423 | default: | |
9424 | goto unknown; | |
9425 | } | |
9426 | ||
9427 | case 't': | |
9428 | if (name[1] == 'i' && | |
9429 | name[2] == 'm' && | |
9430 | name[3] == 'e' && | |
9431 | name[4] == 's') | |
9432 | { /* times */ | |
9433 | return -KEY_times; | |
9434 | } | |
9435 | ||
9436 | goto unknown; | |
9437 | ||
9438 | case 'u': | |
9439 | switch (name[1]) | |
9440 | { | |
9441 | case 'm': | |
9442 | if (name[2] == 'a' && | |
9443 | name[3] == 's' && | |
9444 | name[4] == 'k') | |
9445 | { /* umask */ | |
9446 | return -KEY_umask; | |
9447 | } | |
9448 | ||
9449 | goto unknown; | |
9450 | ||
9451 | case 'n': | |
9452 | switch (name[2]) | |
9453 | { | |
9454 | case 'd': | |
9455 | if (name[3] == 'e' && | |
9456 | name[4] == 'f') | |
9457 | { /* undef */ | |
9458 | return KEY_undef; | |
9459 | } | |
9460 | ||
9461 | goto unknown; | |
9462 | ||
9463 | case 't': | |
9464 | if (name[3] == 'i') | |
9465 | { | |
9466 | switch (name[4]) | |
9467 | { | |
9468 | case 'e': | |
9469 | { /* untie */ | |
1db4d195 | 9470 | return -KEY_untie; |
4c3bbe0f MHM |
9471 | } |
9472 | ||
4c3bbe0f MHM |
9473 | case 'l': |
9474 | { /* until */ | |
9475 | return KEY_until; | |
9476 | } | |
9477 | ||
4c3bbe0f MHM |
9478 | default: |
9479 | goto unknown; | |
9480 | } | |
9481 | } | |
9482 | ||
9483 | goto unknown; | |
9484 | ||
9485 | default: | |
9486 | goto unknown; | |
9487 | } | |
9488 | ||
9489 | case 't': | |
9490 | if (name[2] == 'i' && | |
9491 | name[3] == 'm' && | |
9492 | name[4] == 'e') | |
9493 | { /* utime */ | |
9494 | return -KEY_utime; | |
9495 | } | |
9496 | ||
9497 | goto unknown; | |
9498 | ||
9499 | default: | |
9500 | goto unknown; | |
9501 | } | |
9502 | ||
9503 | case 'w': | |
9504 | switch (name[1]) | |
9505 | { | |
9506 | case 'h': | |
9507 | if (name[2] == 'i' && | |
9508 | name[3] == 'l' && | |
9509 | name[4] == 'e') | |
9510 | { /* while */ | |
9511 | return KEY_while; | |
9512 | } | |
9513 | ||
9514 | goto unknown; | |
9515 | ||
9516 | case 'r': | |
9517 | if (name[2] == 'i' && | |
9518 | name[3] == 't' && | |
9519 | name[4] == 'e') | |
9520 | { /* write */ | |
9521 | return -KEY_write; | |
9522 | } | |
9523 | ||
9524 | goto unknown; | |
9525 | ||
9526 | default: | |
9527 | goto unknown; | |
9528 | } | |
9529 | ||
9530 | default: | |
9531 | goto unknown; | |
e2e1dd5a | 9532 | } |
4c3bbe0f MHM |
9533 | |
9534 | case 6: /* 33 tokens of length 6 */ | |
9535 | switch (name[0]) | |
9536 | { | |
9537 | case 'a': | |
9538 | if (name[1] == 'c' && | |
9539 | name[2] == 'c' && | |
9540 | name[3] == 'e' && | |
9541 | name[4] == 'p' && | |
9542 | name[5] == 't') | |
9543 | { /* accept */ | |
9544 | return -KEY_accept; | |
9545 | } | |
9546 | ||
9547 | goto unknown; | |
9548 | ||
9549 | case 'c': | |
9550 | switch (name[1]) | |
9551 | { | |
9552 | case 'a': | |
9553 | if (name[2] == 'l' && | |
9554 | name[3] == 'l' && | |
9555 | name[4] == 'e' && | |
9556 | name[5] == 'r') | |
9557 | { /* caller */ | |
9558 | return -KEY_caller; | |
9559 | } | |
9560 | ||
9561 | goto unknown; | |
9562 | ||
9563 | case 'h': | |
9564 | if (name[2] == 'r' && | |
9565 | name[3] == 'o' && | |
9566 | name[4] == 'o' && | |
9567 | name[5] == 't') | |
9568 | { /* chroot */ | |
9569 | return -KEY_chroot; | |
9570 | } | |
9571 | ||
9572 | goto unknown; | |
9573 | ||
9574 | default: | |
9575 | goto unknown; | |
9576 | } | |
9577 | ||
9578 | case 'd': | |
9579 | if (name[1] == 'e' && | |
9580 | name[2] == 'l' && | |
9581 | name[3] == 'e' && | |
9582 | name[4] == 't' && | |
9583 | name[5] == 'e') | |
9584 | { /* delete */ | |
9585 | return KEY_delete; | |
9586 | } | |
9587 | ||
9588 | goto unknown; | |
9589 | ||
9590 | case 'e': | |
9591 | switch (name[1]) | |
9592 | { | |
9593 | case 'l': | |
9594 | if (name[2] == 's' && | |
9595 | name[3] == 'e' && | |
9596 | name[4] == 'i' && | |
9597 | name[5] == 'f') | |
9598 | { /* elseif */ | |
9b387841 | 9599 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); |
4c3bbe0f MHM |
9600 | } |
9601 | ||
9602 | goto unknown; | |
9603 | ||
9604 | case 'x': | |
9605 | if (name[2] == 'i' && | |
9606 | name[3] == 's' && | |
9607 | name[4] == 't' && | |
9608 | name[5] == 's') | |
9609 | { /* exists */ | |
9610 | return KEY_exists; | |
9611 | } | |
9612 | ||
9613 | goto unknown; | |
9614 | ||
9615 | default: | |
9616 | goto unknown; | |
9617 | } | |
9618 | ||
9619 | case 'f': | |
9620 | switch (name[1]) | |
9621 | { | |
9622 | case 'i': | |
9623 | if (name[2] == 'l' && | |
9624 | name[3] == 'e' && | |
9625 | name[4] == 'n' && | |
9626 | name[5] == 'o') | |
9627 | { /* fileno */ | |
9628 | return -KEY_fileno; | |
9629 | } | |
9630 | ||
9631 | goto unknown; | |
9632 | ||
9633 | case 'o': | |
9634 | if (name[2] == 'r' && | |
9635 | name[3] == 'm' && | |
9636 | name[4] == 'a' && | |
9637 | name[5] == 't') | |
9638 | { /* format */ | |
9639 | return KEY_format; | |
9640 | } | |
9641 | ||
9642 | goto unknown; | |
9643 | ||
9644 | default: | |
9645 | goto unknown; | |
9646 | } | |
9647 | ||
9648 | case 'g': | |
9649 | if (name[1] == 'm' && | |
9650 | name[2] == 't' && | |
9651 | name[3] == 'i' && | |
9652 | name[4] == 'm' && | |
9653 | name[5] == 'e') | |
9654 | { /* gmtime */ | |
9655 | return -KEY_gmtime; | |
9656 | } | |
9657 | ||
9658 | goto unknown; | |
9659 | ||
9660 | case 'l': | |
9661 | switch (name[1]) | |
9662 | { | |
9663 | case 'e': | |
9664 | if (name[2] == 'n' && | |
9665 | name[3] == 'g' && | |
9666 | name[4] == 't' && | |
9667 | name[5] == 'h') | |
9668 | { /* length */ | |
9669 | return -KEY_length; | |
9670 | } | |
9671 | ||
9672 | goto unknown; | |
9673 | ||
9674 | case 'i': | |
9675 | if (name[2] == 's' && | |
9676 | name[3] == 't' && | |
9677 | name[4] == 'e' && | |
9678 | name[5] == 'n') | |
9679 | { /* listen */ | |
9680 | return -KEY_listen; | |
9681 | } | |
9682 | ||
9683 | goto unknown; | |
9684 | ||
9685 | default: | |
9686 | goto unknown; | |
9687 | } | |
9688 | ||
9689 | case 'm': | |
9690 | if (name[1] == 's' && | |
9691 | name[2] == 'g') | |
9692 | { | |
9693 | switch (name[3]) | |
9694 | { | |
9695 | case 'c': | |
9696 | if (name[4] == 't' && | |
9697 | name[5] == 'l') | |
9698 | { /* msgctl */ | |
9699 | return -KEY_msgctl; | |
9700 | } | |
9701 | ||
9702 | goto unknown; | |
9703 | ||
9704 | case 'g': | |
9705 | if (name[4] == 'e' && | |
9706 | name[5] == 't') | |
9707 | { /* msgget */ | |
9708 | return -KEY_msgget; | |
9709 | } | |
9710 | ||
9711 | goto unknown; | |
9712 | ||
9713 | case 'r': | |
9714 | if (name[4] == 'c' && | |
9715 | name[5] == 'v') | |
9716 | { /* msgrcv */ | |
9717 | return -KEY_msgrcv; | |
9718 | } | |
9719 | ||
9720 | goto unknown; | |
9721 | ||
9722 | case 's': | |
9723 | if (name[4] == 'n' && | |
9724 | name[5] == 'd') | |
9725 | { /* msgsnd */ | |
9726 | return -KEY_msgsnd; | |
9727 | } | |
9728 | ||
9729 | goto unknown; | |
9730 | ||
9731 | default: | |
9732 | goto unknown; | |
9733 | } | |
9734 | } | |
9735 | ||
9736 | goto unknown; | |
9737 | ||
9738 | case 'p': | |
9739 | if (name[1] == 'r' && | |
9740 | name[2] == 'i' && | |
9741 | name[3] == 'n' && | |
9742 | name[4] == 't' && | |
9743 | name[5] == 'f') | |
9744 | { /* printf */ | |
9745 | return KEY_printf; | |
9746 | } | |
9747 | ||
9748 | goto unknown; | |
9749 | ||
9750 | case 'r': | |
9751 | switch (name[1]) | |
9752 | { | |
9753 | case 'e': | |
9754 | switch (name[2]) | |
9755 | { | |
9756 | case 'n': | |
9757 | if (name[3] == 'a' && | |
9758 | name[4] == 'm' && | |
9759 | name[5] == 'e') | |
9760 | { /* rename */ | |
9761 | return -KEY_rename; | |
9762 | } | |
9763 | ||
9764 | goto unknown; | |
9765 | ||
9766 | case 't': | |
9767 | if (name[3] == 'u' && | |
9768 | name[4] == 'r' && | |
9769 | name[5] == 'n') | |
9770 | { /* return */ | |
9771 | return KEY_return; | |
9772 | } | |
9773 | ||
9774 | goto unknown; | |
9775 | ||
9776 | default: | |
9777 | goto unknown; | |
9778 | } | |
9779 | ||
9780 | case 'i': | |
9781 | if (name[2] == 'n' && | |
9782 | name[3] == 'd' && | |
9783 | name[4] == 'e' && | |
9784 | name[5] == 'x') | |
9785 | { /* rindex */ | |
9786 | return -KEY_rindex; | |
9787 | } | |
9788 | ||
9789 | goto unknown; | |
9790 | ||
9791 | default: | |
9792 | goto unknown; | |
9793 | } | |
9794 | ||
9795 | case 's': | |
9796 | switch (name[1]) | |
9797 | { | |
9798 | case 'c': | |
9799 | if (name[2] == 'a' && | |
9800 | name[3] == 'l' && | |
9801 | name[4] == 'a' && | |
9802 | name[5] == 'r') | |
9803 | { /* scalar */ | |
9804 | return KEY_scalar; | |
9805 | } | |
9806 | ||
9807 | goto unknown; | |
9808 | ||
9809 | case 'e': | |
9810 | switch (name[2]) | |
9811 | { | |
9812 | case 'l': | |
9813 | if (name[3] == 'e' && | |
9814 | name[4] == 'c' && | |
9815 | name[5] == 't') | |
9816 | { /* select */ | |
9817 | return -KEY_select; | |
9818 | } | |
9819 | ||
9820 | goto unknown; | |
9821 | ||
9822 | case 'm': | |
9823 | switch (name[3]) | |
9824 | { | |
9825 | case 'c': | |
9826 | if (name[4] == 't' && | |
9827 | name[5] == 'l') | |
9828 | { /* semctl */ | |
9829 | return -KEY_semctl; | |
9830 | } | |
9831 | ||
9832 | goto unknown; | |
9833 | ||
9834 | case 'g': | |
9835 | if (name[4] == 'e' && | |
9836 | name[5] == 't') | |
9837 | { /* semget */ | |
9838 | return -KEY_semget; | |
9839 | } | |
9840 | ||
9841 | goto unknown; | |
9842 | ||
9843 | default: | |
9844 | goto unknown; | |
9845 | } | |
9846 | ||
9847 | default: | |
9848 | goto unknown; | |
9849 | } | |
9850 | ||
9851 | case 'h': | |
9852 | if (name[2] == 'm') | |
9853 | { | |
9854 | switch (name[3]) | |
9855 | { | |
9856 | case 'c': | |
9857 | if (name[4] == 't' && | |
9858 | name[5] == 'l') | |
9859 | { /* shmctl */ | |
9860 | return -KEY_shmctl; | |
9861 | } | |
9862 | ||
9863 | goto unknown; | |
9864 | ||
9865 | case 'g': | |
9866 | if (name[4] == 'e' && | |
9867 | name[5] == 't') | |
9868 | { /* shmget */ | |
9869 | return -KEY_shmget; | |
9870 | } | |
9871 | ||
9872 | goto unknown; | |
9873 | ||
9874 | default: | |
9875 | goto unknown; | |
9876 | } | |
9877 | } | |
9878 | ||
9879 | goto unknown; | |
9880 | ||
9881 | case 'o': | |
9882 | if (name[2] == 'c' && | |
9883 | name[3] == 'k' && | |
9884 | name[4] == 'e' && | |
9885 | name[5] == 't') | |
9886 | { /* socket */ | |
9887 | return -KEY_socket; | |
9888 | } | |
9889 | ||
9890 | goto unknown; | |
9891 | ||
9892 | case 'p': | |
9893 | if (name[2] == 'l' && | |
9894 | name[3] == 'i' && | |
9895 | name[4] == 'c' && | |
9896 | name[5] == 'e') | |
9897 | { /* splice */ | |
9898 | return -KEY_splice; | |
9899 | } | |
9900 | ||
9901 | goto unknown; | |
9902 | ||
9903 | case 'u': | |
9904 | if (name[2] == 'b' && | |
9905 | name[3] == 's' && | |
9906 | name[4] == 't' && | |
9907 | name[5] == 'r') | |
9908 | { /* substr */ | |
9909 | return -KEY_substr; | |
9910 | } | |
9911 | ||
9912 | goto unknown; | |
9913 | ||
9914 | case 'y': | |
9915 | if (name[2] == 's' && | |
9916 | name[3] == 't' && | |
9917 | name[4] == 'e' && | |
9918 | name[5] == 'm') | |
9919 | { /* system */ | |
9920 | return -KEY_system; | |
9921 | } | |
9922 | ||
9923 | goto unknown; | |
9924 | ||
9925 | default: | |
9926 | goto unknown; | |
9927 | } | |
9928 | ||
9929 | case 'u': | |
9930 | if (name[1] == 'n') | |
9931 | { | |
9932 | switch (name[2]) | |
9933 | { | |
9934 | case 'l': | |
9935 | switch (name[3]) | |
9936 | { | |
9937 | case 'e': | |
9938 | if (name[4] == 's' && | |
9939 | name[5] == 's') | |
9940 | { /* unless */ | |
9941 | return KEY_unless; | |
9942 | } | |
9943 | ||
9944 | goto unknown; | |
9945 | ||
9946 | case 'i': | |
9947 | if (name[4] == 'n' && | |
9948 | name[5] == 'k') | |
9949 | { /* unlink */ | |
9950 | return -KEY_unlink; | |
9951 | } | |
9952 | ||
9953 | goto unknown; | |
9954 | ||
9955 | default: | |
9956 | goto unknown; | |
9957 | } | |
9958 | ||
9959 | case 'p': | |
9960 | if (name[3] == 'a' && | |
9961 | name[4] == 'c' && | |
9962 | name[5] == 'k') | |
9963 | { /* unpack */ | |
9964 | return -KEY_unpack; | |
9965 | } | |
9966 | ||
9967 | goto unknown; | |
9968 | ||
9969 | default: | |
9970 | goto unknown; | |
9971 | } | |
9972 | } | |
9973 | ||
9974 | goto unknown; | |
9975 | ||
9976 | case 'v': | |
9977 | if (name[1] == 'a' && | |
9978 | name[2] == 'l' && | |
9979 | name[3] == 'u' && | |
9980 | name[4] == 'e' && | |
9981 | name[5] == 's') | |
9982 | { /* values */ | |
9983 | return -KEY_values; | |
9984 | } | |
9985 | ||
9986 | goto unknown; | |
9987 | ||
9988 | default: | |
9989 | goto unknown; | |
e2e1dd5a | 9990 | } |
4c3bbe0f | 9991 | |
0d863452 | 9992 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
9993 | switch (name[0]) |
9994 | { | |
9995 | case 'D': | |
9996 | if (name[1] == 'E' && | |
9997 | name[2] == 'S' && | |
9998 | name[3] == 'T' && | |
9999 | name[4] == 'R' && | |
10000 | name[5] == 'O' && | |
10001 | name[6] == 'Y') | |
10002 | { /* DESTROY */ | |
10003 | return KEY_DESTROY; | |
10004 | } | |
10005 | ||
10006 | goto unknown; | |
10007 | ||
10008 | case '_': | |
10009 | if (name[1] == '_' && | |
10010 | name[2] == 'E' && | |
10011 | name[3] == 'N' && | |
10012 | name[4] == 'D' && | |
10013 | name[5] == '_' && | |
10014 | name[6] == '_') | |
10015 | { /* __END__ */ | |
10016 | return KEY___END__; | |
10017 | } | |
10018 | ||
10019 | goto unknown; | |
10020 | ||
10021 | case 'b': | |
10022 | if (name[1] == 'i' && | |
10023 | name[2] == 'n' && | |
10024 | name[3] == 'm' && | |
10025 | name[4] == 'o' && | |
10026 | name[5] == 'd' && | |
10027 | name[6] == 'e') | |
10028 | { /* binmode */ | |
10029 | return -KEY_binmode; | |
10030 | } | |
10031 | ||
10032 | goto unknown; | |
10033 | ||
10034 | case 'c': | |
10035 | if (name[1] == 'o' && | |
10036 | name[2] == 'n' && | |
10037 | name[3] == 'n' && | |
10038 | name[4] == 'e' && | |
10039 | name[5] == 'c' && | |
10040 | name[6] == 't') | |
10041 | { /* connect */ | |
10042 | return -KEY_connect; | |
10043 | } | |
10044 | ||
10045 | goto unknown; | |
10046 | ||
10047 | case 'd': | |
10048 | switch (name[1]) | |
10049 | { | |
10050 | case 'b': | |
10051 | if (name[2] == 'm' && | |
10052 | name[3] == 'o' && | |
10053 | name[4] == 'p' && | |
10054 | name[5] == 'e' && | |
10055 | name[6] == 'n') | |
10056 | { /* dbmopen */ | |
10057 | return -KEY_dbmopen; | |
10058 | } | |
10059 | ||
10060 | goto unknown; | |
10061 | ||
10062 | case 'e': | |
0d863452 RH |
10063 | if (name[2] == 'f') |
10064 | { | |
10065 | switch (name[3]) | |
10066 | { | |
10067 | case 'a': | |
10068 | if (name[4] == 'u' && | |
10069 | name[5] == 'l' && | |
10070 | name[6] == 't') | |
10071 | { /* default */ | |
5458a98a | 10072 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
10073 | } |
10074 | ||
10075 | goto unknown; | |
10076 | ||
10077 | case 'i': | |
10078 | if (name[4] == 'n' && | |
952306ac RGS |
10079 | name[5] == 'e' && |
10080 | name[6] == 'd') | |
10081 | { /* defined */ | |
10082 | return KEY_defined; | |
10083 | } | |
4c3bbe0f | 10084 | |
952306ac | 10085 | goto unknown; |
4c3bbe0f | 10086 | |
952306ac RGS |
10087 | default: |
10088 | goto unknown; | |
10089 | } | |
0d863452 RH |
10090 | } |
10091 | ||
10092 | goto unknown; | |
10093 | ||
10094 | default: | |
10095 | goto unknown; | |
10096 | } | |
4c3bbe0f MHM |
10097 | |
10098 | case 'f': | |
10099 | if (name[1] == 'o' && | |
10100 | name[2] == 'r' && | |
10101 | name[3] == 'e' && | |
10102 | name[4] == 'a' && | |
10103 | name[5] == 'c' && | |
10104 | name[6] == 'h') | |
10105 | { /* foreach */ | |
10106 | return KEY_foreach; | |
10107 | } | |
10108 | ||
10109 | goto unknown; | |
10110 | ||
10111 | case 'g': | |
10112 | if (name[1] == 'e' && | |
10113 | name[2] == 't' && | |
10114 | name[3] == 'p') | |
10115 | { | |
10116 | switch (name[4]) | |
10117 | { | |
10118 | case 'g': | |
10119 | if (name[5] == 'r' && | |
10120 | name[6] == 'p') | |
10121 | { /* getpgrp */ | |
10122 | return -KEY_getpgrp; | |
10123 | } | |
10124 | ||
10125 | goto unknown; | |
10126 | ||
10127 | case 'p': | |
10128 | if (name[5] == 'i' && | |
10129 | name[6] == 'd') | |
10130 | { /* getppid */ | |
10131 | return -KEY_getppid; | |
10132 | } | |
10133 | ||
10134 | goto unknown; | |
10135 | ||
10136 | default: | |
10137 | goto unknown; | |
10138 | } | |
10139 | } | |
10140 | ||
10141 | goto unknown; | |
10142 | ||
10143 | case 'l': | |
10144 | if (name[1] == 'c' && | |
10145 | name[2] == 'f' && | |
10146 | name[3] == 'i' && | |
10147 | name[4] == 'r' && | |
10148 | name[5] == 's' && | |
10149 | name[6] == 't') | |
10150 | { /* lcfirst */ | |
10151 | return -KEY_lcfirst; | |
10152 | } | |
10153 | ||
10154 | goto unknown; | |
10155 | ||
10156 | case 'o': | |
10157 | if (name[1] == 'p' && | |
10158 | name[2] == 'e' && | |
10159 | name[3] == 'n' && | |
10160 | name[4] == 'd' && | |
10161 | name[5] == 'i' && | |
10162 | name[6] == 'r') | |
10163 | { /* opendir */ | |
10164 | return -KEY_opendir; | |
10165 | } | |
10166 | ||
10167 | goto unknown; | |
10168 | ||
10169 | case 'p': | |
10170 | if (name[1] == 'a' && | |
10171 | name[2] == 'c' && | |
10172 | name[3] == 'k' && | |
10173 | name[4] == 'a' && | |
10174 | name[5] == 'g' && | |
10175 | name[6] == 'e') | |
10176 | { /* package */ | |
10177 | return KEY_package; | |
10178 | } | |
10179 | ||
10180 | goto unknown; | |
10181 | ||
10182 | case 'r': | |
10183 | if (name[1] == 'e') | |
10184 | { | |
10185 | switch (name[2]) | |
10186 | { | |
10187 | case 'a': | |
10188 | if (name[3] == 'd' && | |
10189 | name[4] == 'd' && | |
10190 | name[5] == 'i' && | |
10191 | name[6] == 'r') | |
10192 | { /* readdir */ | |
10193 | return -KEY_readdir; | |
10194 | } | |
10195 | ||
10196 | goto unknown; | |
10197 | ||
10198 | case 'q': | |
10199 | if (name[3] == 'u' && | |
10200 | name[4] == 'i' && | |
10201 | name[5] == 'r' && | |
10202 | name[6] == 'e') | |
10203 | { /* require */ | |
10204 | return KEY_require; | |
10205 | } | |
10206 | ||
10207 | goto unknown; | |
10208 | ||
10209 | case 'v': | |
10210 | if (name[3] == 'e' && | |
10211 | name[4] == 'r' && | |
10212 | name[5] == 's' && | |
10213 | name[6] == 'e') | |
10214 | { /* reverse */ | |
10215 | return -KEY_reverse; | |
10216 | } | |
10217 | ||
10218 | goto unknown; | |
10219 | ||
10220 | default: | |
10221 | goto unknown; | |
10222 | } | |
10223 | } | |
10224 | ||
10225 | goto unknown; | |
10226 | ||
10227 | case 's': | |
10228 | switch (name[1]) | |
10229 | { | |
10230 | case 'e': | |
10231 | switch (name[2]) | |
10232 | { | |
10233 | case 'e': | |
10234 | if (name[3] == 'k' && | |
10235 | name[4] == 'd' && | |
10236 | name[5] == 'i' && | |
10237 | name[6] == 'r') | |
10238 | { /* seekdir */ | |
10239 | return -KEY_seekdir; | |
10240 | } | |
10241 | ||
10242 | goto unknown; | |
10243 | ||
10244 | case 't': | |
10245 | if (name[3] == 'p' && | |
10246 | name[4] == 'g' && | |
10247 | name[5] == 'r' && | |
10248 | name[6] == 'p') | |
10249 | { /* setpgrp */ | |
10250 | return -KEY_setpgrp; | |
10251 | } | |
10252 | ||
10253 | goto unknown; | |
10254 | ||
10255 | default: | |
10256 | goto unknown; | |
10257 | } | |
10258 | ||
10259 | case 'h': | |
10260 | if (name[2] == 'm' && | |
10261 | name[3] == 'r' && | |
10262 | name[4] == 'e' && | |
10263 | name[5] == 'a' && | |
10264 | name[6] == 'd') | |
10265 | { /* shmread */ | |
10266 | return -KEY_shmread; | |
10267 | } | |
10268 | ||
10269 | goto unknown; | |
10270 | ||
10271 | case 'p': | |
10272 | if (name[2] == 'r' && | |
10273 | name[3] == 'i' && | |
10274 | name[4] == 'n' && | |
10275 | name[5] == 't' && | |
10276 | name[6] == 'f') | |
10277 | { /* sprintf */ | |
10278 | return -KEY_sprintf; | |
10279 | } | |
10280 | ||
10281 | goto unknown; | |
10282 | ||
10283 | case 'y': | |
10284 | switch (name[2]) | |
10285 | { | |
10286 | case 'm': | |
10287 | if (name[3] == 'l' && | |
10288 | name[4] == 'i' && | |
10289 | name[5] == 'n' && | |
10290 | name[6] == 'k') | |
10291 | { /* symlink */ | |
10292 | return -KEY_symlink; | |
10293 | } | |
10294 | ||
10295 | goto unknown; | |
10296 | ||
10297 | case 's': | |
10298 | switch (name[3]) | |
10299 | { | |
10300 | case 'c': | |
10301 | if (name[4] == 'a' && | |
10302 | name[5] == 'l' && | |
10303 | name[6] == 'l') | |
10304 | { /* syscall */ | |
10305 | return -KEY_syscall; | |
10306 | } | |
10307 | ||
10308 | goto unknown; | |
10309 | ||
10310 | case 'o': | |
10311 | if (name[4] == 'p' && | |
10312 | name[5] == 'e' && | |
10313 | name[6] == 'n') | |
10314 | { /* sysopen */ | |
10315 | return -KEY_sysopen; | |
10316 | } | |
10317 | ||
10318 | goto unknown; | |
10319 | ||
10320 | case 'r': | |
10321 | if (name[4] == 'e' && | |
10322 | name[5] == 'a' && | |
10323 | name[6] == 'd') | |
10324 | { /* sysread */ | |
10325 | return -KEY_sysread; | |
10326 | } | |
10327 | ||
10328 | goto unknown; | |
10329 | ||
10330 | case 's': | |
10331 | if (name[4] == 'e' && | |
10332 | name[5] == 'e' && | |
10333 | name[6] == 'k') | |
10334 | { /* sysseek */ | |
10335 | return -KEY_sysseek; | |
10336 | } | |
10337 | ||
10338 | goto unknown; | |
10339 | ||
10340 | default: | |
10341 | goto unknown; | |
10342 | } | |
10343 | ||
10344 | default: | |
10345 | goto unknown; | |
10346 | } | |
10347 | ||
10348 | default: | |
10349 | goto unknown; | |
10350 | } | |
10351 | ||
10352 | case 't': | |
10353 | if (name[1] == 'e' && | |
10354 | name[2] == 'l' && | |
10355 | name[3] == 'l' && | |
10356 | name[4] == 'd' && | |
10357 | name[5] == 'i' && | |
10358 | name[6] == 'r') | |
10359 | { /* telldir */ | |
10360 | return -KEY_telldir; | |
10361 | } | |
10362 | ||
10363 | goto unknown; | |
10364 | ||
10365 | case 'u': | |
10366 | switch (name[1]) | |
10367 | { | |
10368 | case 'c': | |
10369 | if (name[2] == 'f' && | |
10370 | name[3] == 'i' && | |
10371 | name[4] == 'r' && | |
10372 | name[5] == 's' && | |
10373 | name[6] == 't') | |
10374 | { /* ucfirst */ | |
10375 | return -KEY_ucfirst; | |
10376 | } | |
10377 | ||
10378 | goto unknown; | |
10379 | ||
10380 | case 'n': | |
10381 | if (name[2] == 's' && | |
10382 | name[3] == 'h' && | |
10383 | name[4] == 'i' && | |
10384 | name[5] == 'f' && | |
10385 | name[6] == 't') | |
10386 | { /* unshift */ | |
10387 | return -KEY_unshift; | |
10388 | } | |
10389 | ||
10390 | goto unknown; | |
10391 | ||
10392 | default: | |
10393 | goto unknown; | |
10394 | } | |
10395 | ||
10396 | case 'w': | |
10397 | if (name[1] == 'a' && | |
10398 | name[2] == 'i' && | |
10399 | name[3] == 't' && | |
10400 | name[4] == 'p' && | |
10401 | name[5] == 'i' && | |
10402 | name[6] == 'd') | |
10403 | { /* waitpid */ | |
10404 | return -KEY_waitpid; | |
10405 | } | |
10406 | ||
10407 | goto unknown; | |
10408 | ||
10409 | default: | |
10410 | goto unknown; | |
10411 | } | |
10412 | ||
10413 | case 8: /* 26 tokens of length 8 */ | |
10414 | switch (name[0]) | |
10415 | { | |
10416 | case 'A': | |
10417 | if (name[1] == 'U' && | |
10418 | name[2] == 'T' && | |
10419 | name[3] == 'O' && | |
10420 | name[4] == 'L' && | |
10421 | name[5] == 'O' && | |
10422 | name[6] == 'A' && | |
10423 | name[7] == 'D') | |
10424 | { /* AUTOLOAD */ | |
10425 | return KEY_AUTOLOAD; | |
10426 | } | |
10427 | ||
10428 | goto unknown; | |
10429 | ||
10430 | case '_': | |
10431 | if (name[1] == '_') | |
10432 | { | |
10433 | switch (name[2]) | |
10434 | { | |
10435 | case 'D': | |
10436 | if (name[3] == 'A' && | |
10437 | name[4] == 'T' && | |
10438 | name[5] == 'A' && | |
10439 | name[6] == '_' && | |
10440 | name[7] == '_') | |
10441 | { /* __DATA__ */ | |
10442 | return KEY___DATA__; | |
10443 | } | |
10444 | ||
10445 | goto unknown; | |
10446 | ||
10447 | case 'F': | |
10448 | if (name[3] == 'I' && | |
10449 | name[4] == 'L' && | |
10450 | name[5] == 'E' && | |
10451 | name[6] == '_' && | |
10452 | name[7] == '_') | |
10453 | { /* __FILE__ */ | |
10454 | return -KEY___FILE__; | |
10455 | } | |
10456 | ||
10457 | goto unknown; | |
10458 | ||
10459 | case 'L': | |
10460 | if (name[3] == 'I' && | |
10461 | name[4] == 'N' && | |
10462 | name[5] == 'E' && | |
10463 | name[6] == '_' && | |
10464 | name[7] == '_') | |
10465 | { /* __LINE__ */ | |
10466 | return -KEY___LINE__; | |
10467 | } | |
10468 | ||
10469 | goto unknown; | |
10470 | ||
10471 | default: | |
10472 | goto unknown; | |
10473 | } | |
10474 | } | |
10475 | ||
10476 | goto unknown; | |
10477 | ||
10478 | case 'c': | |
10479 | switch (name[1]) | |
10480 | { | |
10481 | case 'l': | |
10482 | if (name[2] == 'o' && | |
10483 | name[3] == 's' && | |
10484 | name[4] == 'e' && | |
10485 | name[5] == 'd' && | |
10486 | name[6] == 'i' && | |
10487 | name[7] == 'r') | |
10488 | { /* closedir */ | |
10489 | return -KEY_closedir; | |
10490 | } | |
10491 | ||
10492 | goto unknown; | |
10493 | ||
10494 | case 'o': | |
10495 | if (name[2] == 'n' && | |
10496 | name[3] == 't' && | |
10497 | name[4] == 'i' && | |
10498 | name[5] == 'n' && | |
10499 | name[6] == 'u' && | |
10500 | name[7] == 'e') | |
10501 | { /* continue */ | |
10502 | return -KEY_continue; | |
10503 | } | |
10504 | ||
10505 | goto unknown; | |
10506 | ||
10507 | default: | |
10508 | goto unknown; | |
10509 | } | |
10510 | ||
10511 | case 'd': | |
10512 | if (name[1] == 'b' && | |
10513 | name[2] == 'm' && | |
10514 | name[3] == 'c' && | |
10515 | name[4] == 'l' && | |
10516 | name[5] == 'o' && | |
10517 | name[6] == 's' && | |
10518 | name[7] == 'e') | |
10519 | { /* dbmclose */ | |
10520 | return -KEY_dbmclose; | |
10521 | } | |
10522 | ||
10523 | goto unknown; | |
10524 | ||
10525 | case 'e': | |
10526 | if (name[1] == 'n' && | |
10527 | name[2] == 'd') | |
10528 | { | |
10529 | switch (name[3]) | |
10530 | { | |
10531 | case 'g': | |
10532 | if (name[4] == 'r' && | |
10533 | name[5] == 'e' && | |
10534 | name[6] == 'n' && | |
10535 | name[7] == 't') | |
10536 | { /* endgrent */ | |
10537 | return -KEY_endgrent; | |
10538 | } | |
10539 | ||
10540 | goto unknown; | |
10541 | ||
10542 | case 'p': | |
10543 | if (name[4] == 'w' && | |
10544 | name[5] == 'e' && | |
10545 | name[6] == 'n' && | |
10546 | name[7] == 't') | |
10547 | { /* endpwent */ | |
10548 | return -KEY_endpwent; | |
10549 | } | |
10550 | ||
10551 | goto unknown; | |
10552 | ||
10553 | default: | |
10554 | goto unknown; | |
10555 | } | |
10556 | } | |
10557 | ||
10558 | goto unknown; | |
10559 | ||
10560 | case 'f': | |
10561 | if (name[1] == 'o' && | |
10562 | name[2] == 'r' && | |
10563 | name[3] == 'm' && | |
10564 | name[4] == 'l' && | |
10565 | name[5] == 'i' && | |
10566 | name[6] == 'n' && | |
10567 | name[7] == 'e') | |
10568 | { /* formline */ | |
10569 | return -KEY_formline; | |
10570 | } | |
10571 | ||
10572 | goto unknown; | |
10573 | ||
10574 | case 'g': | |
10575 | if (name[1] == 'e' && | |
10576 | name[2] == 't') | |
10577 | { | |
10578 | switch (name[3]) | |
10579 | { | |
10580 | case 'g': | |
10581 | if (name[4] == 'r') | |
10582 | { | |
10583 | switch (name[5]) | |
10584 | { | |
10585 | case 'e': | |
10586 | if (name[6] == 'n' && | |
10587 | name[7] == 't') | |
10588 | { /* getgrent */ | |
10589 | return -KEY_getgrent; | |
10590 | } | |
10591 | ||
10592 | goto unknown; | |
10593 | ||
10594 | case 'g': | |
10595 | if (name[6] == 'i' && | |
10596 | name[7] == 'd') | |
10597 | { /* getgrgid */ | |
10598 | return -KEY_getgrgid; | |
10599 | } | |
10600 | ||
10601 | goto unknown; | |
10602 | ||
10603 | case 'n': | |
10604 | if (name[6] == 'a' && | |
10605 | name[7] == 'm') | |
10606 | { /* getgrnam */ | |
10607 | return -KEY_getgrnam; | |
10608 | } | |
10609 | ||
10610 | goto unknown; | |
10611 | ||
10612 | default: | |
10613 | goto unknown; | |
10614 | } | |
10615 | } | |
10616 | ||
10617 | goto unknown; | |
10618 | ||
10619 | case 'l': | |
10620 | if (name[4] == 'o' && | |
10621 | name[5] == 'g' && | |
10622 | name[6] == 'i' && | |
10623 | name[7] == 'n') | |
10624 | { /* getlogin */ | |
10625 | return -KEY_getlogin; | |
10626 | } | |
10627 | ||
10628 | goto unknown; | |
10629 | ||
10630 | case 'p': | |
10631 | if (name[4] == 'w') | |
10632 | { | |
10633 | switch (name[5]) | |
10634 | { | |
10635 | case 'e': | |
10636 | if (name[6] == 'n' && | |
10637 | name[7] == 't') | |
10638 | { /* getpwent */ | |
10639 | return -KEY_getpwent; | |
10640 | } | |
10641 | ||
10642 | goto unknown; | |
10643 | ||
10644 | case 'n': | |
10645 | if (name[6] == 'a' && | |
10646 | name[7] == 'm') | |
10647 | { /* getpwnam */ | |
10648 | return -KEY_getpwnam; | |
10649 | } | |
10650 | ||
10651 | goto unknown; | |
10652 | ||
10653 | case 'u': | |
10654 | if (name[6] == 'i' && | |
10655 | name[7] == 'd') | |
10656 | { /* getpwuid */ | |
10657 | return -KEY_getpwuid; | |
10658 | } | |
10659 | ||
10660 | goto unknown; | |
10661 | ||
10662 | default: | |
10663 | goto unknown; | |
10664 | } | |
10665 | } | |
10666 | ||
10667 | goto unknown; | |
10668 | ||
10669 | default: | |
10670 | goto unknown; | |
10671 | } | |
10672 | } | |
10673 | ||
10674 | goto unknown; | |
10675 | ||
10676 | case 'r': | |
10677 | if (name[1] == 'e' && | |
10678 | name[2] == 'a' && | |
10679 | name[3] == 'd') | |
10680 | { | |
10681 | switch (name[4]) | |
10682 | { | |
10683 | case 'l': | |
10684 | if (name[5] == 'i' && | |
10685 | name[6] == 'n') | |
10686 | { | |
10687 | switch (name[7]) | |
10688 | { | |
10689 | case 'e': | |
10690 | { /* readline */ | |
10691 | return -KEY_readline; | |
10692 | } | |
10693 | ||
4c3bbe0f MHM |
10694 | case 'k': |
10695 | { /* readlink */ | |
10696 | return -KEY_readlink; | |
10697 | } | |
10698 | ||
4c3bbe0f MHM |
10699 | default: |
10700 | goto unknown; | |
10701 | } | |
10702 | } | |
10703 | ||
10704 | goto unknown; | |
10705 | ||
10706 | case 'p': | |
10707 | if (name[5] == 'i' && | |
10708 | name[6] == 'p' && | |
10709 | name[7] == 'e') | |
10710 | { /* readpipe */ | |
10711 | return -KEY_readpipe; | |
10712 | } | |
10713 | ||
10714 | goto unknown; | |
10715 | ||
10716 | default: | |
10717 | goto unknown; | |
10718 | } | |
10719 | } | |
10720 | ||
10721 | goto unknown; | |
10722 | ||
10723 | case 's': | |
10724 | switch (name[1]) | |
10725 | { | |
10726 | case 'e': | |
10727 | if (name[2] == 't') | |
10728 | { | |
10729 | switch (name[3]) | |
10730 | { | |
10731 | case 'g': | |
10732 | if (name[4] == 'r' && | |
10733 | name[5] == 'e' && | |
10734 | name[6] == 'n' && | |
10735 | name[7] == 't') | |
10736 | { /* setgrent */ | |
10737 | return -KEY_setgrent; | |
10738 | } | |
10739 | ||
10740 | goto unknown; | |
10741 | ||
10742 | case 'p': | |
10743 | if (name[4] == 'w' && | |
10744 | name[5] == 'e' && | |
10745 | name[6] == 'n' && | |
10746 | name[7] == 't') | |
10747 | { /* setpwent */ | |
10748 | return -KEY_setpwent; | |
10749 | } | |
10750 | ||
10751 | goto unknown; | |
10752 | ||
10753 | default: | |
10754 | goto unknown; | |
10755 | } | |
10756 | } | |
10757 | ||
10758 | goto unknown; | |
10759 | ||
10760 | case 'h': | |
10761 | switch (name[2]) | |
10762 | { | |
10763 | case 'm': | |
10764 | if (name[3] == 'w' && | |
10765 | name[4] == 'r' && | |
10766 | name[5] == 'i' && | |
10767 | name[6] == 't' && | |
10768 | name[7] == 'e') | |
10769 | { /* shmwrite */ | |
10770 | return -KEY_shmwrite; | |
10771 | } | |
10772 | ||
10773 | goto unknown; | |
10774 | ||
10775 | case 'u': | |
10776 | if (name[3] == 't' && | |
10777 | name[4] == 'd' && | |
10778 | name[5] == 'o' && | |
10779 | name[6] == 'w' && | |
10780 | name[7] == 'n') | |
10781 | { /* shutdown */ | |
10782 | return -KEY_shutdown; | |
10783 | } | |
10784 | ||
10785 | goto unknown; | |
10786 | ||
10787 | default: | |
10788 | goto unknown; | |
10789 | } | |
10790 | ||
10791 | case 'y': | |
10792 | if (name[2] == 's' && | |
10793 | name[3] == 'w' && | |
10794 | name[4] == 'r' && | |
10795 | name[5] == 'i' && | |
10796 | name[6] == 't' && | |
10797 | name[7] == 'e') | |
10798 | { /* syswrite */ | |
10799 | return -KEY_syswrite; | |
10800 | } | |
10801 | ||
10802 | goto unknown; | |
10803 | ||
10804 | default: | |
10805 | goto unknown; | |
10806 | } | |
10807 | ||
10808 | case 't': | |
10809 | if (name[1] == 'r' && | |
10810 | name[2] == 'u' && | |
10811 | name[3] == 'n' && | |
10812 | name[4] == 'c' && | |
10813 | name[5] == 'a' && | |
10814 | name[6] == 't' && | |
10815 | name[7] == 'e') | |
10816 | { /* truncate */ | |
10817 | return -KEY_truncate; | |
10818 | } | |
10819 | ||
10820 | goto unknown; | |
10821 | ||
10822 | default: | |
10823 | goto unknown; | |
10824 | } | |
10825 | ||
3c10abe3 | 10826 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
10827 | switch (name[0]) |
10828 | { | |
3c10abe3 AG |
10829 | case 'U': |
10830 | if (name[1] == 'N' && | |
10831 | name[2] == 'I' && | |
10832 | name[3] == 'T' && | |
10833 | name[4] == 'C' && | |
10834 | name[5] == 'H' && | |
10835 | name[6] == 'E' && | |
10836 | name[7] == 'C' && | |
10837 | name[8] == 'K') | |
10838 | { /* UNITCHECK */ | |
10839 | return KEY_UNITCHECK; | |
10840 | } | |
10841 | ||
10842 | goto unknown; | |
10843 | ||
4c3bbe0f MHM |
10844 | case 'e': |
10845 | if (name[1] == 'n' && | |
10846 | name[2] == 'd' && | |
10847 | name[3] == 'n' && | |
10848 | name[4] == 'e' && | |
10849 | name[5] == 't' && | |
10850 | name[6] == 'e' && | |
10851 | name[7] == 'n' && | |
10852 | name[8] == 't') | |
10853 | { /* endnetent */ | |
10854 | return -KEY_endnetent; | |
10855 | } | |
10856 | ||
10857 | goto unknown; | |
10858 | ||
10859 | case 'g': | |
10860 | if (name[1] == 'e' && | |
10861 | name[2] == 't' && | |
10862 | name[3] == 'n' && | |
10863 | name[4] == 'e' && | |
10864 | name[5] == 't' && | |
10865 | name[6] == 'e' && | |
10866 | name[7] == 'n' && | |
10867 | name[8] == 't') | |
10868 | { /* getnetent */ | |
10869 | return -KEY_getnetent; | |
10870 | } | |
10871 | ||
10872 | goto unknown; | |
10873 | ||
10874 | case 'l': | |
10875 | if (name[1] == 'o' && | |
10876 | name[2] == 'c' && | |
10877 | name[3] == 'a' && | |
10878 | name[4] == 'l' && | |
10879 | name[5] == 't' && | |
10880 | name[6] == 'i' && | |
10881 | name[7] == 'm' && | |
10882 | name[8] == 'e') | |
10883 | { /* localtime */ | |
10884 | return -KEY_localtime; | |
10885 | } | |
10886 | ||
10887 | goto unknown; | |
10888 | ||
10889 | case 'p': | |
10890 | if (name[1] == 'r' && | |
10891 | name[2] == 'o' && | |
10892 | name[3] == 't' && | |
10893 | name[4] == 'o' && | |
10894 | name[5] == 't' && | |
10895 | name[6] == 'y' && | |
10896 | name[7] == 'p' && | |
10897 | name[8] == 'e') | |
10898 | { /* prototype */ | |
10899 | return KEY_prototype; | |
10900 | } | |
10901 | ||
10902 | goto unknown; | |
10903 | ||
10904 | case 'q': | |
10905 | if (name[1] == 'u' && | |
10906 | name[2] == 'o' && | |
10907 | name[3] == 't' && | |
10908 | name[4] == 'e' && | |
10909 | name[5] == 'm' && | |
10910 | name[6] == 'e' && | |
10911 | name[7] == 't' && | |
10912 | name[8] == 'a') | |
10913 | { /* quotemeta */ | |
10914 | return -KEY_quotemeta; | |
10915 | } | |
10916 | ||
10917 | goto unknown; | |
10918 | ||
10919 | case 'r': | |
10920 | if (name[1] == 'e' && | |
10921 | name[2] == 'w' && | |
10922 | name[3] == 'i' && | |
10923 | name[4] == 'n' && | |
10924 | name[5] == 'd' && | |
10925 | name[6] == 'd' && | |
10926 | name[7] == 'i' && | |
10927 | name[8] == 'r') | |
10928 | { /* rewinddir */ | |
10929 | return -KEY_rewinddir; | |
10930 | } | |
10931 | ||
10932 | goto unknown; | |
10933 | ||
10934 | case 's': | |
10935 | if (name[1] == 'e' && | |
10936 | name[2] == 't' && | |
10937 | name[3] == 'n' && | |
10938 | name[4] == 'e' && | |
10939 | name[5] == 't' && | |
10940 | name[6] == 'e' && | |
10941 | name[7] == 'n' && | |
10942 | name[8] == 't') | |
10943 | { /* setnetent */ | |
10944 | return -KEY_setnetent; | |
10945 | } | |
10946 | ||
10947 | goto unknown; | |
10948 | ||
10949 | case 'w': | |
10950 | if (name[1] == 'a' && | |
10951 | name[2] == 'n' && | |
10952 | name[3] == 't' && | |
10953 | name[4] == 'a' && | |
10954 | name[5] == 'r' && | |
10955 | name[6] == 'r' && | |
10956 | name[7] == 'a' && | |
10957 | name[8] == 'y') | |
10958 | { /* wantarray */ | |
10959 | return -KEY_wantarray; | |
10960 | } | |
10961 | ||
10962 | goto unknown; | |
10963 | ||
10964 | default: | |
10965 | goto unknown; | |
10966 | } | |
10967 | ||
10968 | case 10: /* 9 tokens of length 10 */ | |
10969 | switch (name[0]) | |
10970 | { | |
10971 | case 'e': | |
10972 | if (name[1] == 'n' && | |
10973 | name[2] == 'd') | |
10974 | { | |
10975 | switch (name[3]) | |
10976 | { | |
10977 | case 'h': | |
10978 | if (name[4] == 'o' && | |
10979 | name[5] == 's' && | |
10980 | name[6] == 't' && | |
10981 | name[7] == 'e' && | |
10982 | name[8] == 'n' && | |
10983 | name[9] == 't') | |
10984 | { /* endhostent */ | |
10985 | return -KEY_endhostent; | |
10986 | } | |
10987 | ||
10988 | goto unknown; | |
10989 | ||
10990 | case 's': | |
10991 | if (name[4] == 'e' && | |
10992 | name[5] == 'r' && | |
10993 | name[6] == 'v' && | |
10994 | name[7] == 'e' && | |
10995 | name[8] == 'n' && | |
10996 | name[9] == 't') | |
10997 | { /* endservent */ | |
10998 | return -KEY_endservent; | |
10999 | } | |
11000 | ||
11001 | goto unknown; | |
11002 | ||
11003 | default: | |
11004 | goto unknown; | |
11005 | } | |
11006 | } | |
11007 | ||
11008 | goto unknown; | |
11009 | ||
11010 | case 'g': | |
11011 | if (name[1] == 'e' && | |
11012 | name[2] == 't') | |
11013 | { | |
11014 | switch (name[3]) | |
11015 | { | |
11016 | case 'h': | |
11017 | if (name[4] == 'o' && | |
11018 | name[5] == 's' && | |
11019 | name[6] == 't' && | |
11020 | name[7] == 'e' && | |
11021 | name[8] == 'n' && | |
11022 | name[9] == 't') | |
11023 | { /* gethostent */ | |
11024 | return -KEY_gethostent; | |
11025 | } | |
11026 | ||
11027 | goto unknown; | |
11028 | ||
11029 | case 's': | |
11030 | switch (name[4]) | |
11031 | { | |
11032 | case 'e': | |
11033 | if (name[5] == 'r' && | |
11034 | name[6] == 'v' && | |
11035 | name[7] == 'e' && | |
11036 | name[8] == 'n' && | |
11037 | name[9] == 't') | |
11038 | { /* getservent */ | |
11039 | return -KEY_getservent; | |
11040 | } | |
11041 | ||
11042 | goto unknown; | |
11043 | ||
11044 | case 'o': | |
11045 | if (name[5] == 'c' && | |
11046 | name[6] == 'k' && | |
11047 | name[7] == 'o' && | |
11048 | name[8] == 'p' && | |
11049 | name[9] == 't') | |
11050 | { /* getsockopt */ | |
11051 | return -KEY_getsockopt; | |
11052 | } | |
11053 | ||
11054 | goto unknown; | |
11055 | ||
11056 | default: | |
11057 | goto unknown; | |
11058 | } | |
11059 | ||
11060 | default: | |
11061 | goto unknown; | |
11062 | } | |
11063 | } | |
11064 | ||
11065 | goto unknown; | |
11066 | ||
11067 | case 's': | |
11068 | switch (name[1]) | |
11069 | { | |
11070 | case 'e': | |
11071 | if (name[2] == 't') | |
11072 | { | |
11073 | switch (name[3]) | |
11074 | { | |
11075 | case 'h': | |
11076 | if (name[4] == 'o' && | |
11077 | name[5] == 's' && | |
11078 | name[6] == 't' && | |
11079 | name[7] == 'e' && | |
11080 | name[8] == 'n' && | |
11081 | name[9] == 't') | |
11082 | { /* sethostent */ | |
11083 | return -KEY_sethostent; | |
11084 | } | |
11085 | ||
11086 | goto unknown; | |
11087 | ||
11088 | case 's': | |
11089 | switch (name[4]) | |
11090 | { | |
11091 | case 'e': | |
11092 | if (name[5] == 'r' && | |
11093 | name[6] == 'v' && | |
11094 | name[7] == 'e' && | |
11095 | name[8] == 'n' && | |
11096 | name[9] == 't') | |
11097 | { /* setservent */ | |
11098 | return -KEY_setservent; | |
11099 | } | |
11100 | ||
11101 | goto unknown; | |
11102 | ||
11103 | case 'o': | |
11104 | if (name[5] == 'c' && | |
11105 | name[6] == 'k' && | |
11106 | name[7] == 'o' && | |
11107 | name[8] == 'p' && | |
11108 | name[9] == 't') | |
11109 | { /* setsockopt */ | |
11110 | return -KEY_setsockopt; | |
11111 | } | |
11112 | ||
11113 | goto unknown; | |
11114 | ||
11115 | default: | |
11116 | goto unknown; | |
11117 | } | |
11118 | ||
11119 | default: | |
11120 | goto unknown; | |
11121 | } | |
11122 | } | |
11123 | ||
11124 | goto unknown; | |
11125 | ||
11126 | case 'o': | |
11127 | if (name[2] == 'c' && | |
11128 | name[3] == 'k' && | |
11129 | name[4] == 'e' && | |
11130 | name[5] == 't' && | |
11131 | name[6] == 'p' && | |
11132 | name[7] == 'a' && | |
11133 | name[8] == 'i' && | |
11134 | name[9] == 'r') | |
11135 | { /* socketpair */ | |
11136 | return -KEY_socketpair; | |
11137 | } | |
11138 | ||
11139 | goto unknown; | |
11140 | ||
11141 | default: | |
11142 | goto unknown; | |
11143 | } | |
11144 | ||
11145 | default: | |
11146 | goto unknown; | |
e2e1dd5a | 11147 | } |
4c3bbe0f MHM |
11148 | |
11149 | case 11: /* 8 tokens of length 11 */ | |
11150 | switch (name[0]) | |
11151 | { | |
11152 | case '_': | |
11153 | if (name[1] == '_' && | |
11154 | name[2] == 'P' && | |
11155 | name[3] == 'A' && | |
11156 | name[4] == 'C' && | |
11157 | name[5] == 'K' && | |
11158 | name[6] == 'A' && | |
11159 | name[7] == 'G' && | |
11160 | name[8] == 'E' && | |
11161 | name[9] == '_' && | |
11162 | name[10] == '_') | |
11163 | { /* __PACKAGE__ */ | |
11164 | return -KEY___PACKAGE__; | |
11165 | } | |
11166 | ||
11167 | goto unknown; | |
11168 | ||
11169 | case 'e': | |
11170 | if (name[1] == 'n' && | |
11171 | name[2] == 'd' && | |
11172 | name[3] == 'p' && | |
11173 | name[4] == 'r' && | |
11174 | name[5] == 'o' && | |
11175 | name[6] == 't' && | |
11176 | name[7] == 'o' && | |
11177 | name[8] == 'e' && | |
11178 | name[9] == 'n' && | |
11179 | name[10] == 't') | |
11180 | { /* endprotoent */ | |
11181 | return -KEY_endprotoent; | |
11182 | } | |
11183 | ||
11184 | goto unknown; | |
11185 | ||
11186 | case 'g': | |
11187 | if (name[1] == 'e' && | |
11188 | name[2] == 't') | |
11189 | { | |
11190 | switch (name[3]) | |
11191 | { | |
11192 | case 'p': | |
11193 | switch (name[4]) | |
11194 | { | |
11195 | case 'e': | |
11196 | if (name[5] == 'e' && | |
11197 | name[6] == 'r' && | |
11198 | name[7] == 'n' && | |
11199 | name[8] == 'a' && | |
11200 | name[9] == 'm' && | |
11201 | name[10] == 'e') | |
11202 | { /* getpeername */ | |
11203 | return -KEY_getpeername; | |
11204 | } | |
11205 | ||
11206 | goto unknown; | |
11207 | ||
11208 | case 'r': | |
11209 | switch (name[5]) | |
11210 | { | |
11211 | case 'i': | |
11212 | if (name[6] == 'o' && | |
11213 | name[7] == 'r' && | |
11214 | name[8] == 'i' && | |
11215 | name[9] == 't' && | |
11216 | name[10] == 'y') | |
11217 | { /* getpriority */ | |
11218 | return -KEY_getpriority; | |
11219 | } | |
11220 | ||
11221 | goto unknown; | |
11222 | ||
11223 | case 'o': | |
11224 | if (name[6] == 't' && | |
11225 | name[7] == 'o' && | |
11226 | name[8] == 'e' && | |
11227 | name[9] == 'n' && | |
11228 | name[10] == 't') | |
11229 | { /* getprotoent */ | |
11230 | return -KEY_getprotoent; | |
11231 | } | |
11232 | ||
11233 | goto unknown; | |
11234 | ||
11235 | default: | |
11236 | goto unknown; | |
11237 | } | |
11238 | ||
11239 | default: | |
11240 | goto unknown; | |
11241 | } | |
11242 | ||
11243 | case 's': | |
11244 | if (name[4] == 'o' && | |
11245 | name[5] == 'c' && | |
11246 | name[6] == 'k' && | |
11247 | name[7] == 'n' && | |
11248 | name[8] == 'a' && | |
11249 | name[9] == 'm' && | |
11250 | name[10] == 'e') | |
11251 | { /* getsockname */ | |
11252 | return -KEY_getsockname; | |
11253 | } | |
11254 | ||
11255 | goto unknown; | |
11256 | ||
11257 | default: | |
11258 | goto unknown; | |
11259 | } | |
11260 | } | |
11261 | ||
11262 | goto unknown; | |
11263 | ||
11264 | case 's': | |
11265 | if (name[1] == 'e' && | |
11266 | name[2] == 't' && | |
11267 | name[3] == 'p' && | |
11268 | name[4] == 'r') | |
11269 | { | |
11270 | switch (name[5]) | |
11271 | { | |
11272 | case 'i': | |
11273 | if (name[6] == 'o' && | |
11274 | name[7] == 'r' && | |
11275 | name[8] == 'i' && | |
11276 | name[9] == 't' && | |
11277 | name[10] == 'y') | |
11278 | { /* setpriority */ | |
11279 | return -KEY_setpriority; | |
11280 | } | |
11281 | ||
11282 | goto unknown; | |
11283 | ||
11284 | case 'o': | |
11285 | if (name[6] == 't' && | |
11286 | name[7] == 'o' && | |
11287 | name[8] == 'e' && | |
11288 | name[9] == 'n' && | |
11289 | name[10] == 't') | |
11290 | { /* setprotoent */ | |
11291 | return -KEY_setprotoent; | |
11292 | } | |
11293 | ||
11294 | goto unknown; | |
11295 | ||
11296 | default: | |
11297 | goto unknown; | |
11298 | } | |
11299 | } | |
11300 | ||
11301 | goto unknown; | |
11302 | ||
11303 | default: | |
11304 | goto unknown; | |
e2e1dd5a | 11305 | } |
4c3bbe0f MHM |
11306 | |
11307 | case 12: /* 2 tokens of length 12 */ | |
11308 | if (name[0] == 'g' && | |
11309 | name[1] == 'e' && | |
11310 | name[2] == 't' && | |
11311 | name[3] == 'n' && | |
11312 | name[4] == 'e' && | |
11313 | name[5] == 't' && | |
11314 | name[6] == 'b' && | |
11315 | name[7] == 'y') | |
11316 | { | |
11317 | switch (name[8]) | |
11318 | { | |
11319 | case 'a': | |
11320 | if (name[9] == 'd' && | |
11321 | name[10] == 'd' && | |
11322 | name[11] == 'r') | |
11323 | { /* getnetbyaddr */ | |
11324 | return -KEY_getnetbyaddr; | |
11325 | } | |
11326 | ||
11327 | goto unknown; | |
11328 | ||
11329 | case 'n': | |
11330 | if (name[9] == 'a' && | |
11331 | name[10] == 'm' && | |
11332 | name[11] == 'e') | |
11333 | { /* getnetbyname */ | |
11334 | return -KEY_getnetbyname; | |
11335 | } | |
11336 | ||
11337 | goto unknown; | |
11338 | ||
11339 | default: | |
11340 | goto unknown; | |
11341 | } | |
e2e1dd5a | 11342 | } |
4c3bbe0f MHM |
11343 | |
11344 | goto unknown; | |
11345 | ||
11346 | case 13: /* 4 tokens of length 13 */ | |
11347 | if (name[0] == 'g' && | |
11348 | name[1] == 'e' && | |
11349 | name[2] == 't') | |
11350 | { | |
11351 | switch (name[3]) | |
11352 | { | |
11353 | case 'h': | |
11354 | if (name[4] == 'o' && | |
11355 | name[5] == 's' && | |
11356 | name[6] == 't' && | |
11357 | name[7] == 'b' && | |
11358 | name[8] == 'y') | |
11359 | { | |
11360 | switch (name[9]) | |
11361 | { | |
11362 | case 'a': | |
11363 | if (name[10] == 'd' && | |
11364 | name[11] == 'd' && | |
11365 | name[12] == 'r') | |
11366 | { /* gethostbyaddr */ | |
11367 | return -KEY_gethostbyaddr; | |
11368 | } | |
11369 | ||
11370 | goto unknown; | |
11371 | ||
11372 | case 'n': | |
11373 | if (name[10] == 'a' && | |
11374 | name[11] == 'm' && | |
11375 | name[12] == 'e') | |
11376 | { /* gethostbyname */ | |
11377 | return -KEY_gethostbyname; | |
11378 | } | |
11379 | ||
11380 | goto unknown; | |
11381 | ||
11382 | default: | |
11383 | goto unknown; | |
11384 | } | |
11385 | } | |
11386 | ||
11387 | goto unknown; | |
11388 | ||
11389 | case 's': | |
11390 | if (name[4] == 'e' && | |
11391 | name[5] == 'r' && | |
11392 | name[6] == 'v' && | |
11393 | name[7] == 'b' && | |
11394 | name[8] == 'y') | |
11395 | { | |
11396 | switch (name[9]) | |
11397 | { | |
11398 | case 'n': | |
11399 | if (name[10] == 'a' && | |
11400 | name[11] == 'm' && | |
11401 | name[12] == 'e') | |
11402 | { /* getservbyname */ | |
11403 | return -KEY_getservbyname; | |
11404 | } | |
11405 | ||
11406 | goto unknown; | |
11407 | ||
11408 | case 'p': | |
11409 | if (name[10] == 'o' && | |
11410 | name[11] == 'r' && | |
11411 | name[12] == 't') | |
11412 | { /* getservbyport */ | |
11413 | return -KEY_getservbyport; | |
11414 | } | |
11415 | ||
11416 | goto unknown; | |
11417 | ||
11418 | default: | |
11419 | goto unknown; | |
11420 | } | |
11421 | } | |
11422 | ||
11423 | goto unknown; | |
11424 | ||
11425 | default: | |
11426 | goto unknown; | |
11427 | } | |
e2e1dd5a | 11428 | } |
4c3bbe0f MHM |
11429 | |
11430 | goto unknown; | |
11431 | ||
11432 | case 14: /* 1 tokens of length 14 */ | |
11433 | if (name[0] == 'g' && | |
11434 | name[1] == 'e' && | |
11435 | name[2] == 't' && | |
11436 | name[3] == 'p' && | |
11437 | name[4] == 'r' && | |
11438 | name[5] == 'o' && | |
11439 | name[6] == 't' && | |
11440 | name[7] == 'o' && | |
11441 | name[8] == 'b' && | |
11442 | name[9] == 'y' && | |
11443 | name[10] == 'n' && | |
11444 | name[11] == 'a' && | |
11445 | name[12] == 'm' && | |
11446 | name[13] == 'e') | |
11447 | { /* getprotobyname */ | |
11448 | return -KEY_getprotobyname; | |
11449 | } | |
11450 | ||
11451 | goto unknown; | |
11452 | ||
11453 | case 16: /* 1 tokens of length 16 */ | |
11454 | if (name[0] == 'g' && | |
11455 | name[1] == 'e' && | |
11456 | name[2] == 't' && | |
11457 | name[3] == 'p' && | |
11458 | name[4] == 'r' && | |
11459 | name[5] == 'o' && | |
11460 | name[6] == 't' && | |
11461 | name[7] == 'o' && | |
11462 | name[8] == 'b' && | |
11463 | name[9] == 'y' && | |
11464 | name[10] == 'n' && | |
11465 | name[11] == 'u' && | |
11466 | name[12] == 'm' && | |
11467 | name[13] == 'b' && | |
11468 | name[14] == 'e' && | |
11469 | name[15] == 'r') | |
11470 | { /* getprotobynumber */ | |
11471 | return -KEY_getprotobynumber; | |
11472 | } | |
11473 | ||
11474 | goto unknown; | |
11475 | ||
11476 | default: | |
11477 | goto unknown; | |
e2e1dd5a | 11478 | } |
4c3bbe0f MHM |
11479 | |
11480 | unknown: | |
e2e1dd5a | 11481 | return 0; |
a687059c LW |
11482 | } |
11483 | ||
76e3520e | 11484 | STATIC void |
c94115d8 | 11485 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 11486 | { |
97aff369 | 11487 | dVAR; |
2f3197b3 | 11488 | |
7918f24d NC |
11489 | PERL_ARGS_ASSERT_CHECKCOMMA; |
11490 | ||
d008e5eb | 11491 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
11492 | if (ckWARN(WARN_SYNTAX)) { |
11493 | int level = 1; | |
26ff0806 | 11494 | const char *w; |
d008e5eb GS |
11495 | for (w = s+2; *w && level; w++) { |
11496 | if (*w == '(') | |
11497 | ++level; | |
11498 | else if (*w == ')') | |
11499 | --level; | |
11500 | } | |
888fea98 NC |
11501 | while (isSPACE(*w)) |
11502 | ++w; | |
b1439985 RGS |
11503 | /* the list of chars below is for end of statements or |
11504 | * block / parens, boolean operators (&&, ||, //) and branch | |
11505 | * constructs (or, and, if, until, unless, while, err, for). | |
11506 | * Not a very solid hack... */ | |
11507 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 11508 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 11509 | "%s (...) interpreted as function",name); |
d008e5eb | 11510 | } |
2f3197b3 | 11511 | } |
3280af22 | 11512 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 11513 | s++; |
a687059c LW |
11514 | if (*s == '(') |
11515 | s++; | |
3280af22 | 11516 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11517 | s++; |
7e2040f0 | 11518 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 11519 | const char * const w = s++; |
7e2040f0 | 11520 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 11521 | s++; |
3280af22 | 11522 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11523 | s++; |
e929a76b | 11524 | if (*s == ',') { |
c94115d8 | 11525 | GV* gv; |
5458a98a | 11526 | if (keyword(w, s - w, 0)) |
e929a76b | 11527 | return; |
c94115d8 NC |
11528 | |
11529 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
11530 | if (gv && GvCVu(gv)) | |
abbb3198 | 11531 | return; |
cea2e8a9 | 11532 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
11533 | } |
11534 | } | |
11535 | } | |
11536 | ||
423cee85 JH |
11537 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
11538 | Best used as sv=new_constant(..., sv, ...). | |
11539 | If s, pv are NULL, calls subroutine with one argument, | |
11540 | and type is used with error messages only. */ | |
11541 | ||
b3ac6de7 | 11542 | STATIC SV * |
eb0d8d16 NC |
11543 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
11544 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 11545 | { |
27da23d5 | 11546 | dVAR; dSP; |
890ce7af | 11547 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 11548 | SV *res; |
b3ac6de7 IZ |
11549 | SV **cvp; |
11550 | SV *cv, *typesv; | |
89e33a05 | 11551 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 11552 | |
7918f24d NC |
11553 | PERL_ARGS_ASSERT_NEW_CONSTANT; |
11554 | ||
f0af216f | 11555 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
11556 | SV *msg; |
11557 | ||
10edeb5d JH |
11558 | why2 = (const char *) |
11559 | (strEQ(key,"charnames") | |
11560 | ? "(possibly a missing \"use charnames ...\")" | |
11561 | : ""); | |
4e553d73 | 11562 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
11563 | (type ? type: "undef"), why2); |
11564 | ||
11565 | /* This is convoluted and evil ("goto considered harmful") | |
11566 | * but I do not understand the intricacies of all the different | |
11567 | * failure modes of %^H in here. The goal here is to make | |
11568 | * the most probable error message user-friendly. --jhi */ | |
11569 | ||
11570 | goto msgdone; | |
11571 | ||
423cee85 | 11572 | report: |
4e553d73 | 11573 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 11574 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 11575 | msgdone: |
95a20fc0 | 11576 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
11577 | SvREFCNT_dec(msg); |
11578 | return sv; | |
11579 | } | |
ff3f963a KW |
11580 | |
11581 | /* charnames doesn't work well if there have been errors found */ | |
f5a57329 RGS |
11582 | if (PL_error_count > 0 && strEQ(key,"charnames")) |
11583 | return &PL_sv_undef; | |
ff3f963a | 11584 | |
eb0d8d16 | 11585 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 11586 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
11587 | why1 = "$^H{"; |
11588 | why2 = key; | |
f0af216f | 11589 | why3 = "} is not defined"; |
423cee85 | 11590 | goto report; |
b3ac6de7 IZ |
11591 | } |
11592 | sv_2mortal(sv); /* Parent created it permanently */ | |
11593 | cv = *cvp; | |
423cee85 | 11594 | if (!pv && s) |
59cd0e26 | 11595 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 11596 | if (type && pv) |
59cd0e26 | 11597 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 11598 | else |
423cee85 | 11599 | typesv = &PL_sv_undef; |
4e553d73 | 11600 | |
e788e7d3 | 11601 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
11602 | ENTER ; |
11603 | SAVETMPS; | |
4e553d73 | 11604 | |
423cee85 | 11605 | PUSHMARK(SP) ; |
a5845cb7 | 11606 | EXTEND(sp, 3); |
423cee85 JH |
11607 | if (pv) |
11608 | PUSHs(pv); | |
b3ac6de7 | 11609 | PUSHs(sv); |
423cee85 JH |
11610 | if (pv) |
11611 | PUSHs(typesv); | |
b3ac6de7 | 11612 | PUTBACK; |
423cee85 | 11613 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 11614 | |
423cee85 | 11615 | SPAGAIN ; |
4e553d73 | 11616 | |
423cee85 | 11617 | /* Check the eval first */ |
9b0e499b | 11618 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 11619 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 11620 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 11621 | (void)POPs; |
b37c2d43 | 11622 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
11623 | } |
11624 | else { | |
11625 | res = POPs; | |
b37c2d43 | 11626 | SvREFCNT_inc_simple_void(res); |
423cee85 | 11627 | } |
4e553d73 | 11628 | |
423cee85 JH |
11629 | PUTBACK ; |
11630 | FREETMPS ; | |
11631 | LEAVE ; | |
b3ac6de7 | 11632 | POPSTACK; |
4e553d73 | 11633 | |
b3ac6de7 | 11634 | if (!SvOK(res)) { |
423cee85 JH |
11635 | why1 = "Call to &{$^H{"; |
11636 | why2 = key; | |
f0af216f | 11637 | why3 = "}} did not return a defined value"; |
423cee85 JH |
11638 | sv = res; |
11639 | goto report; | |
9b0e499b | 11640 | } |
423cee85 | 11641 | |
9b0e499b | 11642 | return res; |
b3ac6de7 | 11643 | } |
4e553d73 | 11644 | |
d0a148a6 NC |
11645 | /* Returns a NUL terminated string, with the length of the string written to |
11646 | *slp | |
11647 | */ | |
76e3520e | 11648 | STATIC char * |
cea2e8a9 | 11649 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 11650 | { |
97aff369 | 11651 | dVAR; |
463ee0b2 | 11652 | register char *d = dest; |
890ce7af | 11653 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
7918f24d NC |
11654 | |
11655 | PERL_ARGS_ASSERT_SCAN_WORD; | |
11656 | ||
463ee0b2 | 11657 | for (;;) { |
8903cb82 | 11658 | if (d >= e) |
cea2e8a9 | 11659 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11660 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11661 | *d++ = *s++; |
c35e046a | 11662 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11663 | *d++ = ':'; |
11664 | *d++ = ':'; | |
11665 | s++; | |
11666 | } | |
c35e046a | 11667 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
11668 | *d++ = *s++; |
11669 | *d++ = *s++; | |
11670 | } | |
fd400ab9 | 11671 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11672 | char *t = s + UTF8SKIP(s); |
c35e046a | 11673 | size_t len; |
fd400ab9 | 11674 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 11675 | t += UTF8SKIP(t); |
c35e046a AL |
11676 | len = t - s; |
11677 | if (d + len > e) | |
cea2e8a9 | 11678 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
11679 | Copy(s, d, len, char); |
11680 | d += len; | |
a0ed51b3 LW |
11681 | s = t; |
11682 | } | |
463ee0b2 LW |
11683 | else { |
11684 | *d = '\0'; | |
11685 | *slp = d - dest; | |
11686 | return s; | |
e929a76b | 11687 | } |
378cc40b LW |
11688 | } |
11689 | } | |
11690 | ||
76e3520e | 11691 | STATIC char * |
f54cb97a | 11692 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 11693 | { |
97aff369 | 11694 | dVAR; |
6136c704 | 11695 | char *bracket = NULL; |
748a9306 | 11696 | char funny = *s++; |
6136c704 | 11697 | register char *d = dest; |
0b3da58d | 11698 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
378cc40b | 11699 | |
7918f24d NC |
11700 | PERL_ARGS_ASSERT_SCAN_IDENT; |
11701 | ||
a0d0e21e | 11702 | if (isSPACE(*s)) |
29595ff2 | 11703 | s = PEEKSPACE(s); |
de3bb511 | 11704 | if (isDIGIT(*s)) { |
8903cb82 | 11705 | while (isDIGIT(*s)) { |
11706 | if (d >= e) | |
cea2e8a9 | 11707 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 11708 | *d++ = *s++; |
8903cb82 | 11709 | } |
378cc40b LW |
11710 | } |
11711 | else { | |
463ee0b2 | 11712 | for (;;) { |
8903cb82 | 11713 | if (d >= e) |
cea2e8a9 | 11714 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11715 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11716 | *d++ = *s++; |
7e2040f0 | 11717 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11718 | *d++ = ':'; |
11719 | *d++ = ':'; | |
11720 | s++; | |
11721 | } | |
a0d0e21e | 11722 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
11723 | *d++ = *s++; |
11724 | *d++ = *s++; | |
11725 | } | |
fd400ab9 | 11726 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11727 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 11728 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
11729 | t += UTF8SKIP(t); |
11730 | if (d + (t - s) > e) | |
cea2e8a9 | 11731 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
11732 | Copy(s, d, t - s, char); |
11733 | d += t - s; | |
11734 | s = t; | |
11735 | } | |
463ee0b2 LW |
11736 | else |
11737 | break; | |
11738 | } | |
378cc40b LW |
11739 | } |
11740 | *d = '\0'; | |
11741 | d = dest; | |
79072805 | 11742 | if (*d) { |
3280af22 NIS |
11743 | if (PL_lex_state != LEX_NORMAL) |
11744 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 11745 | return s; |
378cc40b | 11746 | } |
748a9306 | 11747 | if (*s == '$' && s[1] && |
3792a11b | 11748 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 11749 | { |
4810e5ec | 11750 | return s; |
5cd24f17 | 11751 | } |
79072805 LW |
11752 | if (*s == '{') { |
11753 | bracket = s; | |
11754 | s++; | |
11755 | } | |
11756 | else if (ck_uni) | |
11757 | check_uni(); | |
93a17b20 | 11758 | if (s < send) |
79072805 LW |
11759 | *d = *s++; |
11760 | d[1] = '\0'; | |
2b92dfce | 11761 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 11762 | *d = toCTRL(*s); |
11763 | s++; | |
de3bb511 | 11764 | } |
79072805 | 11765 | if (bracket) { |
748a9306 | 11766 | if (isSPACE(s[-1])) { |
fa83b5b6 | 11767 | while (s < send) { |
f54cb97a | 11768 | const char ch = *s++; |
bf4acbe4 | 11769 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 11770 | *d = ch; |
11771 | break; | |
11772 | } | |
11773 | } | |
748a9306 | 11774 | } |
7e2040f0 | 11775 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 11776 | d++; |
a0ed51b3 | 11777 | if (UTF) { |
6136c704 AL |
11778 | char *end = s; |
11779 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
11780 | end += UTF8SKIP(end); | |
11781 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
11782 | end += UTF8SKIP(end); | |
a0ed51b3 | 11783 | } |
6136c704 AL |
11784 | Copy(s, d, end - s, char); |
11785 | d += end - s; | |
11786 | s = end; | |
a0ed51b3 LW |
11787 | } |
11788 | else { | |
2b92dfce | 11789 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 11790 | *d++ = *s++; |
2b92dfce | 11791 | if (d >= e) |
cea2e8a9 | 11792 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 11793 | } |
79072805 | 11794 | *d = '\0'; |
c35e046a AL |
11795 | while (s < send && SPACE_OR_TAB(*s)) |
11796 | s++; | |
ff68c719 | 11797 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 11798 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
11799 | const char * const brack = |
11800 | (const char *) | |
11801 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 11802 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 11803 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
11804 | funny, dest, brack, funny, dest, brack); |
11805 | } | |
79072805 | 11806 | bracket++; |
a0be28da | 11807 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
11808 | return s; |
11809 | } | |
4e553d73 NIS |
11810 | } |
11811 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
11812 | * 1999-02-27 mjd-perl-patch@plover.com */ |
11813 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
11814 | && isALNUM(*s)) | |
11815 | { | |
11816 | d++; | |
11817 | while (isALNUM(*s) && d < e) { | |
11818 | *d++ = *s++; | |
11819 | } | |
11820 | if (d >= e) | |
cea2e8a9 | 11821 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 11822 | *d = '\0'; |
79072805 LW |
11823 | } |
11824 | if (*s == '}') { | |
11825 | s++; | |
7df0d042 | 11826 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 11827 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
11828 | PL_expect = XREF; |
11829 | } | |
d008e5eb | 11830 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 11831 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
11832 | (keyword(dest, d - dest, 0) |
11833 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 11834 | { |
c35e046a AL |
11835 | if (funny == '#') |
11836 | funny = '@'; | |
9014280d | 11837 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
11838 | "Ambiguous use of %c{%s} resolved to %c%s", |
11839 | funny, dest, funny, dest); | |
11840 | } | |
11841 | } | |
79072805 LW |
11842 | } |
11843 | else { | |
11844 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 11845 | *dest = '\0'; |
79072805 LW |
11846 | } |
11847 | } | |
3280af22 NIS |
11848 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
11849 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
11850 | return s; |
11851 | } | |
11852 | ||
879d0c72 NC |
11853 | static U32 |
11854 | S_pmflag(U32 pmfl, const char ch) { | |
11855 | switch (ch) { | |
11856 | CASE_STD_PMMOD_FLAGS_PARSE_SET(&pmfl); | |
4f4d7508 DC |
11857 | case GLOBAL_PAT_MOD: pmfl |= PMf_GLOBAL; break; |
11858 | case CONTINUE_PAT_MOD: pmfl |= PMf_CONTINUE; break; | |
11859 | case ONCE_PAT_MOD: pmfl |= PMf_KEEP; break; | |
11860 | case KEEPCOPY_PAT_MOD: pmfl |= PMf_KEEPCOPY; break; | |
11861 | case NONDESTRUCT_PAT_MOD: pmfl |= PMf_NONDESTRUCT; break; | |
879d0c72 NC |
11862 | } |
11863 | return pmfl; | |
11864 | } | |
11865 | ||
76e3520e | 11866 | STATIC char * |
cea2e8a9 | 11867 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 11868 | { |
97aff369 | 11869 | dVAR; |
79072805 | 11870 | PMOP *pm; |
5db06880 | 11871 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 11872 | const char * const valid_flags = |
a20207d7 | 11873 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
11874 | #ifdef PERL_MAD |
11875 | char *modstart; | |
11876 | #endif | |
11877 | ||
7918f24d | 11878 | PERL_ARGS_ASSERT_SCAN_PAT; |
378cc40b | 11879 | |
25c09cbf | 11880 | if (!s) { |
6136c704 | 11881 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
11882 | Perl_croak(aTHX_ |
11883 | (const char *) | |
11884 | (*delimiter == '?' | |
11885 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
11886 | : "Search pattern not terminated" )); | |
25c09cbf | 11887 | } |
bbce6d69 | 11888 | |
8782bef2 | 11889 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
11890 | if (PL_multi_open == '?') { |
11891 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 11892 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
11893 | |
11894 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
11895 | allows us to restrict the list needed by reset to just the ?? | |
11896 | matches. */ | |
11897 | assert(type != OP_TRANS); | |
11898 | if (PL_curstash) { | |
daba3364 | 11899 | MAGIC *mg = mg_find((const SV *)PL_curstash, PERL_MAGIC_symtab); |
ad639bfb NC |
11900 | U32 elements; |
11901 | if (!mg) { | |
daba3364 | 11902 | mg = sv_magicext(MUTABLE_SV(PL_curstash), 0, PERL_MAGIC_symtab, 0, 0, |
ad639bfb NC |
11903 | 0); |
11904 | } | |
11905 | elements = mg->mg_len / sizeof(PMOP**); | |
11906 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
11907 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
11908 | mg->mg_len = elements * sizeof(PMOP**); | |
11909 | PmopSTASH_set(pm,PL_curstash); | |
11910 | } | |
11911 | } | |
5db06880 NC |
11912 | #ifdef PERL_MAD |
11913 | modstart = s; | |
11914 | #endif | |
6136c704 | 11915 | while (*s && strchr(valid_flags, *s)) |
879d0c72 | 11916 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
e6897b1a KW |
11917 | |
11918 | if (isALNUM(*s)) { | |
11919 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), | |
11920 | "Having no space between pattern and following word is deprecated"); | |
11921 | ||
11922 | } | |
5db06880 NC |
11923 | #ifdef PERL_MAD |
11924 | if (PL_madskills && modstart != s) { | |
11925 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
11926 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
11927 | } | |
11928 | #endif | |
4ac733c9 | 11929 | /* issue a warning if /c is specified,but /g is not */ |
a2a5de95 | 11930 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL)) |
4ac733c9 | 11931 | { |
a2a5de95 NC |
11932 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), |
11933 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
11934 | } |
11935 | ||
3280af22 | 11936 | PL_lex_op = (OP*)pm; |
6154021b | 11937 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
11938 | return s; |
11939 | } | |
11940 | ||
76e3520e | 11941 | STATIC char * |
cea2e8a9 | 11942 | S_scan_subst(pTHX_ char *start) |
79072805 | 11943 | { |
27da23d5 | 11944 | dVAR; |
a0d0e21e | 11945 | register char *s; |
79072805 | 11946 | register PMOP *pm; |
4fdae800 | 11947 | I32 first_start; |
79072805 | 11948 | I32 es = 0; |
5db06880 NC |
11949 | #ifdef PERL_MAD |
11950 | char *modstart; | |
11951 | #endif | |
79072805 | 11952 | |
7918f24d NC |
11953 | PERL_ARGS_ASSERT_SCAN_SUBST; |
11954 | ||
6154021b | 11955 | pl_yylval.ival = OP_NULL; |
79072805 | 11956 | |
5db06880 | 11957 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11958 | |
37fd879b | 11959 | if (!s) |
cea2e8a9 | 11960 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 11961 | |
3280af22 | 11962 | if (s[-1] == PL_multi_open) |
79072805 | 11963 | s--; |
5db06880 NC |
11964 | #ifdef PERL_MAD |
11965 | if (PL_madskills) { | |
cd81e915 NC |
11966 | CURMAD('q', PL_thisopen); |
11967 | CURMAD('_', PL_thiswhite); | |
11968 | CURMAD('E', PL_thisstuff); | |
11969 | CURMAD('Q', PL_thisclose); | |
11970 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11971 | } |
11972 | #endif | |
79072805 | 11973 | |
3280af22 | 11974 | first_start = PL_multi_start; |
5db06880 | 11975 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11976 | if (!s) { |
37fd879b | 11977 | if (PL_lex_stuff) { |
3280af22 | 11978 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11979 | PL_lex_stuff = NULL; |
37fd879b | 11980 | } |
cea2e8a9 | 11981 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 11982 | } |
3280af22 | 11983 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 11984 | |
79072805 | 11985 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
11986 | |
11987 | #ifdef PERL_MAD | |
11988 | if (PL_madskills) { | |
cd81e915 NC |
11989 | CURMAD('z', PL_thisopen); |
11990 | CURMAD('R', PL_thisstuff); | |
11991 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
11992 | } |
11993 | modstart = s; | |
11994 | #endif | |
11995 | ||
48c036b1 | 11996 | while (*s) { |
a20207d7 | 11997 | if (*s == EXEC_PAT_MOD) { |
a687059c | 11998 | s++; |
2f3197b3 | 11999 | es++; |
a687059c | 12000 | } |
a20207d7 | 12001 | else if (strchr(S_PAT_MODS, *s)) |
879d0c72 | 12002 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
aa78b661 KW |
12003 | else { |
12004 | if (isALNUM(*s)) { | |
12005 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), | |
12006 | "Having no space between pattern and following word is deprecated"); | |
12007 | ||
12008 | } | |
48c036b1 | 12009 | break; |
aa78b661 | 12010 | } |
378cc40b | 12011 | } |
79072805 | 12012 | |
5db06880 NC |
12013 | #ifdef PERL_MAD |
12014 | if (PL_madskills) { | |
12015 | if (modstart != s) | |
12016 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
12017 | append_madprops(PL_thismad, (OP*)pm, 0); |
12018 | PL_thismad = 0; | |
5db06880 NC |
12019 | } |
12020 | #endif | |
a2a5de95 NC |
12021 | if ((pm->op_pmflags & PMf_CONTINUE)) { |
12022 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
12023 | } |
12024 | ||
79072805 | 12025 | if (es) { |
6136c704 AL |
12026 | SV * const repl = newSVpvs(""); |
12027 | ||
0244c3a4 GS |
12028 | PL_sublex_info.super_bufptr = s; |
12029 | PL_sublex_info.super_bufend = PL_bufend; | |
12030 | PL_multi_end = 0; | |
79072805 | 12031 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
12032 | while (es-- > 0) { |
12033 | if (es) | |
12034 | sv_catpvs(repl, "eval "); | |
12035 | else | |
12036 | sv_catpvs(repl, "do "); | |
12037 | } | |
6f43d98f | 12038 | sv_catpvs(repl, "{"); |
3280af22 | 12039 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
12040 | if (strchr(SvPVX(PL_lex_repl), '#')) |
12041 | sv_catpvs(repl, "\n"); | |
12042 | sv_catpvs(repl, "}"); | |
25da4f38 | 12043 | SvEVALED_on(repl); |
3280af22 NIS |
12044 | SvREFCNT_dec(PL_lex_repl); |
12045 | PL_lex_repl = repl; | |
378cc40b | 12046 | } |
79072805 | 12047 | |
3280af22 | 12048 | PL_lex_op = (OP*)pm; |
6154021b | 12049 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
12050 | return s; |
12051 | } | |
12052 | ||
76e3520e | 12053 | STATIC char * |
cea2e8a9 | 12054 | S_scan_trans(pTHX_ char *start) |
378cc40b | 12055 | { |
97aff369 | 12056 | dVAR; |
a0d0e21e | 12057 | register char* s; |
11343788 | 12058 | OP *o; |
79072805 | 12059 | short *tbl; |
b84c11c8 NC |
12060 | U8 squash; |
12061 | U8 del; | |
12062 | U8 complement; | |
5db06880 NC |
12063 | #ifdef PERL_MAD |
12064 | char *modstart; | |
12065 | #endif | |
79072805 | 12066 | |
7918f24d NC |
12067 | PERL_ARGS_ASSERT_SCAN_TRANS; |
12068 | ||
6154021b | 12069 | pl_yylval.ival = OP_NULL; |
79072805 | 12070 | |
5db06880 | 12071 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 12072 | if (!s) |
cea2e8a9 | 12073 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 12074 | |
3280af22 | 12075 | if (s[-1] == PL_multi_open) |
2f3197b3 | 12076 | s--; |
5db06880 NC |
12077 | #ifdef PERL_MAD |
12078 | if (PL_madskills) { | |
cd81e915 NC |
12079 | CURMAD('q', PL_thisopen); |
12080 | CURMAD('_', PL_thiswhite); | |
12081 | CURMAD('E', PL_thisstuff); | |
12082 | CURMAD('Q', PL_thisclose); | |
12083 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
12084 | } |
12085 | #endif | |
2f3197b3 | 12086 | |
5db06880 | 12087 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 12088 | if (!s) { |
37fd879b | 12089 | if (PL_lex_stuff) { |
3280af22 | 12090 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 12091 | PL_lex_stuff = NULL; |
37fd879b | 12092 | } |
cea2e8a9 | 12093 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 12094 | } |
5db06880 | 12095 | if (PL_madskills) { |
cd81e915 NC |
12096 | CURMAD('z', PL_thisopen); |
12097 | CURMAD('R', PL_thisstuff); | |
12098 | CURMAD('Z', PL_thisclose); | |
5db06880 | 12099 | } |
79072805 | 12100 | |
a0ed51b3 | 12101 | complement = del = squash = 0; |
5db06880 NC |
12102 | #ifdef PERL_MAD |
12103 | modstart = s; | |
12104 | #endif | |
7a1e2023 NC |
12105 | while (1) { |
12106 | switch (*s) { | |
12107 | case 'c': | |
79072805 | 12108 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
12109 | break; |
12110 | case 'd': | |
a0ed51b3 | 12111 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
12112 | break; |
12113 | case 's': | |
79072805 | 12114 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
12115 | break; |
12116 | default: | |
12117 | goto no_more; | |
12118 | } | |
395c3793 LW |
12119 | s++; |
12120 | } | |
7a1e2023 | 12121 | no_more: |
8973db79 | 12122 | |
aa1f7c5b | 12123 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 12124 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
12125 | o->op_private &= ~OPpTRANS_ALL; |
12126 | o->op_private |= del|squash|complement| | |
7948272d NIS |
12127 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
12128 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 12129 | |
3280af22 | 12130 | PL_lex_op = o; |
6154021b | 12131 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
12132 | |
12133 | #ifdef PERL_MAD | |
12134 | if (PL_madskills) { | |
12135 | if (modstart != s) | |
12136 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
12137 | append_madprops(PL_thismad, o, 0); |
12138 | PL_thismad = 0; | |
5db06880 NC |
12139 | } |
12140 | #endif | |
12141 | ||
79072805 LW |
12142 | return s; |
12143 | } | |
12144 | ||
76e3520e | 12145 | STATIC char * |
cea2e8a9 | 12146 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 12147 | { |
97aff369 | 12148 | dVAR; |
79072805 LW |
12149 | SV *herewas; |
12150 | I32 op_type = OP_SCALAR; | |
12151 | I32 len; | |
12152 | SV *tmpstr; | |
12153 | char term; | |
73d840c0 | 12154 | const char *found_newline; |
79072805 | 12155 | register char *d; |
fc36a67e | 12156 | register char *e; |
4633a7c4 | 12157 | char *peek; |
f54cb97a | 12158 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
12159 | #ifdef PERL_MAD |
12160 | I32 stuffstart = s - SvPVX(PL_linestr); | |
12161 | char *tstart; | |
12162 | ||
cd81e915 | 12163 | PL_realtokenstart = -1; |
5db06880 | 12164 | #endif |
79072805 | 12165 | |
7918f24d NC |
12166 | PERL_ARGS_ASSERT_SCAN_HEREDOC; |
12167 | ||
79072805 | 12168 | s += 2; |
3280af22 NIS |
12169 | d = PL_tokenbuf; |
12170 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 12171 | if (!outer) |
79072805 | 12172 | *d++ = '\n'; |
c35e046a AL |
12173 | peek = s; |
12174 | while (SPACE_OR_TAB(*peek)) | |
12175 | peek++; | |
3792a11b | 12176 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 12177 | s = peek; |
79072805 | 12178 | term = *s++; |
3280af22 | 12179 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 12180 | d += len; |
3280af22 | 12181 | if (s < PL_bufend) |
79072805 | 12182 | s++; |
79072805 LW |
12183 | } |
12184 | else { | |
12185 | if (*s == '\\') | |
12186 | s++, term = '\''; | |
12187 | else | |
12188 | term = '"'; | |
7e2040f0 | 12189 | if (!isALNUM_lazy_if(s,UTF)) |
8ab8f082 | 12190 | deprecate("bare << to mean <<\"\""); |
7e2040f0 | 12191 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 12192 | if (d < e) |
12193 | *d++ = *s; | |
12194 | } | |
12195 | } | |
3280af22 | 12196 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 12197 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
12198 | *d++ = '\n'; |
12199 | *d = '\0'; | |
3280af22 | 12200 | len = d - PL_tokenbuf; |
5db06880 NC |
12201 | |
12202 | #ifdef PERL_MAD | |
12203 | if (PL_madskills) { | |
12204 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 12205 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 12206 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 12207 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
12208 | stuffstart = s - SvPVX(PL_linestr); |
12209 | } | |
12210 | #endif | |
6a27c188 | 12211 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
12212 | d = strchr(s, '\r'); |
12213 | if (d) { | |
b464bac0 | 12214 | char * const olds = s; |
f63a84b2 | 12215 | s = d; |
3280af22 | 12216 | while (s < PL_bufend) { |
f63a84b2 LW |
12217 | if (*s == '\r') { |
12218 | *d++ = '\n'; | |
12219 | if (*++s == '\n') | |
12220 | s++; | |
12221 | } | |
12222 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
12223 | *d++ = *s++; | |
12224 | s++; | |
12225 | } | |
12226 | else | |
12227 | *d++ = *s++; | |
12228 | } | |
12229 | *d = '\0'; | |
3280af22 | 12230 | PL_bufend = d; |
95a20fc0 | 12231 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
12232 | s = olds; |
12233 | } | |
12234 | #endif | |
5db06880 NC |
12235 | #ifdef PERL_MAD |
12236 | found_newline = 0; | |
12237 | #endif | |
10edeb5d | 12238 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
12239 | herewas = newSVpvn(s,PL_bufend-s); |
12240 | } | |
12241 | else { | |
5db06880 NC |
12242 | #ifdef PERL_MAD |
12243 | herewas = newSVpvn(s-1,found_newline-s+1); | |
12244 | #else | |
73d840c0 AL |
12245 | s--; |
12246 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 12247 | #endif |
73d840c0 | 12248 | } |
5db06880 NC |
12249 | #ifdef PERL_MAD |
12250 | if (PL_madskills) { | |
12251 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12252 | if (PL_thisstuff) |
12253 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 12254 | else |
cd81e915 | 12255 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
12256 | } |
12257 | #endif | |
79072805 | 12258 | s += SvCUR(herewas); |
748a9306 | 12259 | |
5db06880 NC |
12260 | #ifdef PERL_MAD |
12261 | stuffstart = s - SvPVX(PL_linestr); | |
12262 | ||
12263 | if (found_newline) | |
12264 | s--; | |
12265 | #endif | |
12266 | ||
7d0a29fe NC |
12267 | tmpstr = newSV_type(SVt_PVIV); |
12268 | SvGROW(tmpstr, 80); | |
748a9306 | 12269 | if (term == '\'') { |
79072805 | 12270 | op_type = OP_CONST; |
45977657 | 12271 | SvIV_set(tmpstr, -1); |
748a9306 LW |
12272 | } |
12273 | else if (term == '`') { | |
79072805 | 12274 | op_type = OP_BACKTICK; |
45977657 | 12275 | SvIV_set(tmpstr, '\\'); |
748a9306 | 12276 | } |
79072805 LW |
12277 | |
12278 | CLINE; | |
57843af0 | 12279 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
12280 | PL_multi_open = PL_multi_close = '<'; |
12281 | term = *PL_tokenbuf; | |
0244c3a4 | 12282 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
12283 | char * const bufptr = PL_sublex_info.super_bufptr; |
12284 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 12285 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
12286 | s = strchr(bufptr, '\n'); |
12287 | if (!s) | |
12288 | s = bufend; | |
12289 | d = s; | |
12290 | while (s < bufend && | |
12291 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
12292 | if (*s++ == '\n') | |
57843af0 | 12293 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
12294 | } |
12295 | if (s >= bufend) { | |
eb160463 | 12296 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
12297 | missingterm(PL_tokenbuf); |
12298 | } | |
12299 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
12300 | sv_setpvn(tmpstr,d+1,s-d); | |
12301 | s += len - 1; | |
12302 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 12303 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
12304 | |
12305 | s = olds; | |
12306 | goto retval; | |
12307 | } | |
12308 | else if (!outer) { | |
79072805 | 12309 | d = s; |
3280af22 NIS |
12310 | while (s < PL_bufend && |
12311 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 12312 | if (*s++ == '\n') |
57843af0 | 12313 | CopLINE_inc(PL_curcop); |
79072805 | 12314 | } |
3280af22 | 12315 | if (s >= PL_bufend) { |
eb160463 | 12316 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12317 | missingterm(PL_tokenbuf); |
79072805 LW |
12318 | } |
12319 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
12320 | #ifdef PERL_MAD |
12321 | if (PL_madskills) { | |
cd81e915 NC |
12322 | if (PL_thisstuff) |
12323 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 12324 | else |
cd81e915 | 12325 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
12326 | stuffstart = s - SvPVX(PL_linestr); |
12327 | } | |
12328 | #endif | |
79072805 | 12329 | s += len - 1; |
57843af0 | 12330 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 12331 | |
3280af22 NIS |
12332 | sv_catpvn(herewas,s,PL_bufend-s); |
12333 | sv_setsv(PL_linestr,herewas); | |
12334 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
12335 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 12336 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
12337 | } |
12338 | else | |
76f68e9b | 12339 | sv_setpvs(tmpstr,""); /* avoid "uninitialized" warning */ |
3280af22 | 12340 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
12341 | #ifdef PERL_MAD |
12342 | if (PL_madskills) { | |
12343 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12344 | if (PL_thisstuff) |
12345 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12346 | else |
cd81e915 | 12347 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12348 | } |
12349 | #endif | |
f0e67a1d | 12350 | PL_bufptr = s; |
17cc9359 | 12351 | CopLINE_inc(PL_curcop); |
f0e67a1d | 12352 | if (!outer || !lex_next_chunk(0)) { |
eb160463 | 12353 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12354 | missingterm(PL_tokenbuf); |
79072805 | 12355 | } |
17cc9359 | 12356 | CopLINE_dec(PL_curcop); |
f0e67a1d | 12357 | s = PL_bufptr; |
5db06880 NC |
12358 | #ifdef PERL_MAD |
12359 | stuffstart = s - SvPVX(PL_linestr); | |
12360 | #endif | |
57843af0 | 12361 | CopLINE_inc(PL_curcop); |
3280af22 | 12362 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 12363 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 12364 | #ifndef PERL_STRICT_CR |
3280af22 | 12365 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
12366 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
12367 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 12368 | { |
3280af22 NIS |
12369 | PL_bufend[-2] = '\n'; |
12370 | PL_bufend--; | |
95a20fc0 | 12371 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 12372 | } |
3280af22 NIS |
12373 | else if (PL_bufend[-1] == '\r') |
12374 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12375 | } |
3280af22 NIS |
12376 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
12377 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12378 | #endif |
3280af22 | 12379 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 12380 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 12381 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
12382 | sv_catsv(PL_linestr,herewas); |
12383 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 12384 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
12385 | } |
12386 | else { | |
3280af22 NIS |
12387 | s = PL_bufend; |
12388 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
12389 | } |
12390 | } | |
79072805 | 12391 | s++; |
0244c3a4 | 12392 | retval: |
57843af0 | 12393 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 12394 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 12395 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 12396 | } |
8990e307 | 12397 | SvREFCNT_dec(herewas); |
2f31ce75 | 12398 | if (!IN_BYTES) { |
95a20fc0 | 12399 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
12400 | SvUTF8_on(tmpstr); |
12401 | else if (PL_encoding) | |
12402 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
12403 | } | |
3280af22 | 12404 | PL_lex_stuff = tmpstr; |
6154021b | 12405 | pl_yylval.ival = op_type; |
79072805 LW |
12406 | return s; |
12407 | } | |
12408 | ||
02aa26ce NT |
12409 | /* scan_inputsymbol |
12410 | takes: current position in input buffer | |
12411 | returns: new position in input buffer | |
6154021b | 12412 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
12413 | |
12414 | This code handles: | |
12415 | ||
12416 | <> read from ARGV | |
12417 | <FH> read from filehandle | |
12418 | <pkg::FH> read from package qualified filehandle | |
12419 | <pkg'FH> read from package qualified filehandle | |
12420 | <$fh> read from filehandle in $fh | |
12421 | <*.h> filename glob | |
12422 | ||
12423 | */ | |
12424 | ||
76e3520e | 12425 | STATIC char * |
cea2e8a9 | 12426 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 12427 | { |
97aff369 | 12428 | dVAR; |
02aa26ce | 12429 | register char *s = start; /* current position in buffer */ |
1b420867 | 12430 | char *end; |
79072805 | 12431 | I32 len; |
6136c704 AL |
12432 | char *d = PL_tokenbuf; /* start of temp holding space */ |
12433 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
12434 | ||
7918f24d NC |
12435 | PERL_ARGS_ASSERT_SCAN_INPUTSYMBOL; |
12436 | ||
1b420867 GS |
12437 | end = strchr(s, '\n'); |
12438 | if (!end) | |
12439 | end = PL_bufend; | |
12440 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
12441 | |
12442 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 12443 | or if it didn't end, or if we see a newline |
02aa26ce NT |
12444 | */ |
12445 | ||
bb7a0f54 | 12446 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 12447 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 12448 | if (s >= end) |
cea2e8a9 | 12449 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 12450 | |
fc36a67e | 12451 | s++; |
02aa26ce NT |
12452 | |
12453 | /* check for <$fh> | |
12454 | Remember, only scalar variables are interpreted as filehandles by | |
12455 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
12456 | treated as a glob() call. | |
12457 | This code makes use of the fact that except for the $ at the front, | |
12458 | a scalar variable and a filehandle look the same. | |
12459 | */ | |
4633a7c4 | 12460 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
12461 | |
12462 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 12463 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 12464 | d++; |
02aa26ce NT |
12465 | |
12466 | /* If we've tried to read what we allow filehandles to look like, and | |
12467 | there's still text left, then it must be a glob() and not a getline. | |
12468 | Use scan_str to pull out the stuff between the <> and treat it | |
12469 | as nothing more than a string. | |
12470 | */ | |
12471 | ||
3280af22 | 12472 | if (d - PL_tokenbuf != len) { |
6154021b | 12473 | pl_yylval.ival = OP_GLOB; |
5db06880 | 12474 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 12475 | if (!s) |
cea2e8a9 | 12476 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
12477 | return s; |
12478 | } | |
395c3793 | 12479 | else { |
9b3023bc | 12480 | bool readline_overriden = FALSE; |
6136c704 | 12481 | GV *gv_readline; |
9b3023bc | 12482 | GV **gvp; |
02aa26ce | 12483 | /* we're in a filehandle read situation */ |
3280af22 | 12484 | d = PL_tokenbuf; |
02aa26ce NT |
12485 | |
12486 | /* turn <> into <ARGV> */ | |
79072805 | 12487 | if (!len) |
689badd5 | 12488 | Copy("ARGV",d,5,char); |
02aa26ce | 12489 | |
9b3023bc | 12490 | /* Check whether readline() is overriden */ |
fafc274c | 12491 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 12492 | if ((gv_readline |
ba979b31 | 12493 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 12494 | || |
017a3ce5 | 12495 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 12496 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 12497 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
12498 | readline_overriden = TRUE; |
12499 | ||
02aa26ce NT |
12500 | /* if <$fh>, create the ops to turn the variable into a |
12501 | filehandle | |
12502 | */ | |
79072805 | 12503 | if (*d == '$') { |
02aa26ce NT |
12504 | /* try to find it in the pad for this block, otherwise find |
12505 | add symbol table ops | |
12506 | */ | |
f8f98e0a | 12507 | const PADOFFSET tmp = pad_findmy(d, len, 0); |
bbd11bfc | 12508 | if (tmp != NOT_IN_PAD) { |
00b1698f | 12509 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
12510 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
12511 | HEK * const stashname = HvNAME_HEK(stash); | |
12512 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 12513 | sv_catpvs(sym, "::"); |
f558d5af JH |
12514 | sv_catpv(sym, d+1); |
12515 | d = SvPVX(sym); | |
12516 | goto intro_sym; | |
12517 | } | |
12518 | else { | |
6136c704 | 12519 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 12520 | o->op_targ = tmp; |
9b3023bc RGS |
12521 | PL_lex_op = readline_overriden |
12522 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12523 | append_elem(OP_LIST, o, | |
12524 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
12525 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 12526 | } |
a0d0e21e LW |
12527 | } |
12528 | else { | |
f558d5af JH |
12529 | GV *gv; |
12530 | ++d; | |
12531 | intro_sym: | |
12532 | gv = gv_fetchpv(d, | |
12533 | (PL_in_eval | |
12534 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 12535 | : GV_ADDMULTI), |
f558d5af | 12536 | SVt_PV); |
9b3023bc RGS |
12537 | PL_lex_op = readline_overriden |
12538 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12539 | append_elem(OP_LIST, | |
12540 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
12541 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12542 | : (OP*)newUNOP(OP_READLINE, 0, | |
12543 | newUNOP(OP_RV2SV, 0, | |
12544 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 12545 | } |
7c6fadd6 RGS |
12546 | if (!readline_overriden) |
12547 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
12548 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
12549 | pl_yylval.ival = OP_NULL; | |
79072805 | 12550 | } |
02aa26ce NT |
12551 | |
12552 | /* If it's none of the above, it must be a literal filehandle | |
12553 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 12554 | else { |
6136c704 | 12555 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
12556 | PL_lex_op = readline_overriden |
12557 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12558 | append_elem(OP_LIST, | |
12559 | newGVOP(OP_GV, 0, gv), | |
12560 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12561 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 12562 | pl_yylval.ival = OP_NULL; |
79072805 LW |
12563 | } |
12564 | } | |
02aa26ce | 12565 | |
79072805 LW |
12566 | return s; |
12567 | } | |
12568 | ||
02aa26ce NT |
12569 | |
12570 | /* scan_str | |
12571 | takes: start position in buffer | |
09bef843 SB |
12572 | keep_quoted preserve \ on the embedded delimiter(s) |
12573 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
12574 | returns: position to continue reading from buffer |
12575 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
12576 | updates the read buffer. | |
12577 | ||
12578 | This subroutine pulls a string out of the input. It is called for: | |
12579 | q single quotes q(literal text) | |
12580 | ' single quotes 'literal text' | |
12581 | qq double quotes qq(interpolate $here please) | |
12582 | " double quotes "interpolate $here please" | |
12583 | qx backticks qx(/bin/ls -l) | |
12584 | ` backticks `/bin/ls -l` | |
12585 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
12586 | m// regexp match m/this/ | |
12587 | s/// regexp substitute s/this/that/ | |
12588 | tr/// string transliterate tr/this/that/ | |
12589 | y/// string transliterate y/this/that/ | |
12590 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 12591 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
12592 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
12593 | ||
12594 | In most of these cases (all but <>, patterns and transliterate) | |
12595 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
12596 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
12597 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
12598 | calls scan_str(). | |
4e553d73 | 12599 | |
02aa26ce NT |
12600 | It skips whitespace before the string starts, and treats the first |
12601 | character as the delimiter. If the delimiter is one of ([{< then | |
12602 | the corresponding "close" character )]}> is used as the closing | |
12603 | delimiter. It allows quoting of delimiters, and if the string has | |
12604 | balanced delimiters ([{<>}]) it allows nesting. | |
12605 | ||
37fd879b HS |
12606 | On success, the SV with the resulting string is put into lex_stuff or, |
12607 | if that is already non-NULL, into lex_repl. The second case occurs only | |
12608 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
12609 | For convenience, the terminating delimiter character is stuffed into | |
12610 | SvIVX of the SV. | |
02aa26ce NT |
12611 | */ |
12612 | ||
76e3520e | 12613 | STATIC char * |
09bef843 | 12614 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 12615 | { |
97aff369 | 12616 | dVAR; |
02aa26ce | 12617 | SV *sv; /* scalar value: string */ |
d3fcec1f | 12618 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
12619 | register char *s = start; /* current position in the buffer */ |
12620 | register char term; /* terminating character */ | |
12621 | register char *to; /* current position in the sv's data */ | |
12622 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 12623 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 12624 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 12625 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 12626 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 12627 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
12628 | #ifdef PERL_MAD |
12629 | int stuffstart; | |
12630 | char *tstart; | |
12631 | #endif | |
02aa26ce | 12632 | |
7918f24d NC |
12633 | PERL_ARGS_ASSERT_SCAN_STR; |
12634 | ||
02aa26ce | 12635 | /* skip space before the delimiter */ |
29595ff2 NC |
12636 | if (isSPACE(*s)) { |
12637 | s = PEEKSPACE(s); | |
12638 | } | |
02aa26ce | 12639 | |
5db06880 | 12640 | #ifdef PERL_MAD |
cd81e915 NC |
12641 | if (PL_realtokenstart >= 0) { |
12642 | stuffstart = PL_realtokenstart; | |
12643 | PL_realtokenstart = -1; | |
5db06880 NC |
12644 | } |
12645 | else | |
12646 | stuffstart = start - SvPVX(PL_linestr); | |
12647 | #endif | |
02aa26ce | 12648 | /* mark where we are, in case we need to report errors */ |
79072805 | 12649 | CLINE; |
02aa26ce NT |
12650 | |
12651 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 12652 | term = *s; |
220e2d4e IH |
12653 | if (!UTF) { |
12654 | termcode = termstr[0] = term; | |
12655 | termlen = 1; | |
12656 | } | |
12657 | else { | |
f3b9ce0f | 12658 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
12659 | Copy(s, termstr, termlen, U8); |
12660 | if (!UTF8_IS_INVARIANT(term)) | |
12661 | has_utf8 = TRUE; | |
12662 | } | |
b1c7b182 | 12663 | |
02aa26ce | 12664 | /* mark where we are */ |
57843af0 | 12665 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 12666 | PL_multi_open = term; |
02aa26ce NT |
12667 | |
12668 | /* find corresponding closing delimiter */ | |
93a17b20 | 12669 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
12670 | termcode = termstr[0] = term = tmps[5]; |
12671 | ||
3280af22 | 12672 | PL_multi_close = term; |
79072805 | 12673 | |
561b68a9 SH |
12674 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
12675 | What a random number. */ | |
7d0a29fe NC |
12676 | sv = newSV_type(SVt_PVIV); |
12677 | SvGROW(sv, 80); | |
45977657 | 12678 | SvIV_set(sv, termcode); |
a0d0e21e | 12679 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
12680 | |
12681 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 12682 | if (keep_delims) |
220e2d4e IH |
12683 | sv_catpvn(sv, s, termlen); |
12684 | s += termlen; | |
5db06880 NC |
12685 | #ifdef PERL_MAD |
12686 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12687 | if (!PL_thisopen && !keep_delims) { |
12688 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
12689 | stuffstart = s - SvPVX(PL_linestr); |
12690 | } | |
12691 | #endif | |
93a17b20 | 12692 | for (;;) { |
220e2d4e IH |
12693 | if (PL_encoding && !UTF) { |
12694 | bool cont = TRUE; | |
12695 | ||
12696 | while (cont) { | |
95a20fc0 | 12697 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 12698 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 12699 | &offset, (char*)termstr, termlen); |
6136c704 AL |
12700 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
12701 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
12702 | |
12703 | for (; s < ns; s++) { | |
12704 | if (*s == '\n' && !PL_rsfp) | |
12705 | CopLINE_inc(PL_curcop); | |
12706 | } | |
12707 | if (!found) | |
12708 | goto read_more_line; | |
12709 | else { | |
12710 | /* handle quoted delimiters */ | |
52327caf | 12711 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 12712 | const char *t; |
95a20fc0 | 12713 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
12714 | t--; |
12715 | if ((svlast-1 - t) % 2) { | |
12716 | if (!keep_quoted) { | |
12717 | *(svlast-1) = term; | |
12718 | *svlast = '\0'; | |
12719 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12720 | } | |
12721 | continue; | |
12722 | } | |
12723 | } | |
12724 | if (PL_multi_open == PL_multi_close) { | |
12725 | cont = FALSE; | |
12726 | } | |
12727 | else { | |
f54cb97a AL |
12728 | const char *t; |
12729 | char *w; | |
0331ef07 | 12730 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
12731 | /* At here, all closes are "was quoted" one, |
12732 | so we don't check PL_multi_close. */ | |
12733 | if (*t == '\\') { | |
12734 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
12735 | t++; | |
12736 | else | |
12737 | *w++ = *t++; | |
12738 | } | |
12739 | else if (*t == PL_multi_open) | |
12740 | brackets++; | |
12741 | ||
12742 | *w = *t; | |
12743 | } | |
12744 | if (w < t) { | |
12745 | *w++ = term; | |
12746 | *w = '\0'; | |
95a20fc0 | 12747 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 12748 | } |
0331ef07 | 12749 | last_off = w - SvPVX(sv); |
220e2d4e IH |
12750 | if (--brackets <= 0) |
12751 | cont = FALSE; | |
12752 | } | |
12753 | } | |
12754 | } | |
12755 | if (!keep_delims) { | |
12756 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12757 | *SvEND(sv) = '\0'; | |
12758 | } | |
12759 | break; | |
12760 | } | |
12761 | ||
02aa26ce | 12762 | /* extend sv if need be */ |
3280af22 | 12763 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 12764 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 12765 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 12766 | |
02aa26ce | 12767 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
12768 | if (PL_multi_open == PL_multi_close) { |
12769 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 12770 | /* embedded newlines increment the current line number */ |
3280af22 | 12771 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12772 | CopLINE_inc(PL_curcop); |
02aa26ce | 12773 | /* handle quoted delimiters */ |
3280af22 | 12774 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 12775 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 12776 | s++; |
02aa26ce | 12777 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
12778 | else |
12779 | *to++ = *s++; | |
12780 | } | |
02aa26ce NT |
12781 | /* terminate when run out of buffer (the for() condition), or |
12782 | have found the terminator */ | |
220e2d4e IH |
12783 | else if (*s == term) { |
12784 | if (termlen == 1) | |
12785 | break; | |
f3b9ce0f | 12786 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
12787 | break; |
12788 | } | |
63cd0674 | 12789 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12790 | has_utf8 = TRUE; |
93a17b20 LW |
12791 | *to = *s; |
12792 | } | |
12793 | } | |
02aa26ce NT |
12794 | |
12795 | /* if the terminator isn't the same as the start character (e.g., | |
12796 | matched brackets), we have to allow more in the quoting, and | |
12797 | be prepared for nested brackets. | |
12798 | */ | |
93a17b20 | 12799 | else { |
02aa26ce | 12800 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 12801 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 12802 | /* embedded newlines increment the line count */ |
3280af22 | 12803 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12804 | CopLINE_inc(PL_curcop); |
02aa26ce | 12805 | /* backslashes can escape the open or closing characters */ |
3280af22 | 12806 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
12807 | if (!keep_quoted && |
12808 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
12809 | s++; |
12810 | else | |
12811 | *to++ = *s++; | |
12812 | } | |
02aa26ce | 12813 | /* allow nested opens and closes */ |
3280af22 | 12814 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 12815 | break; |
3280af22 | 12816 | else if (*s == PL_multi_open) |
93a17b20 | 12817 | brackets++; |
63cd0674 | 12818 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12819 | has_utf8 = TRUE; |
93a17b20 LW |
12820 | *to = *s; |
12821 | } | |
12822 | } | |
02aa26ce | 12823 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 12824 | *to = '\0'; |
95a20fc0 | 12825 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 12826 | |
02aa26ce NT |
12827 | /* |
12828 | * this next chunk reads more into the buffer if we're not done yet | |
12829 | */ | |
12830 | ||
b1c7b182 GS |
12831 | if (s < PL_bufend) |
12832 | break; /* handle case where we are done yet :-) */ | |
79072805 | 12833 | |
6a27c188 | 12834 | #ifndef PERL_STRICT_CR |
95a20fc0 | 12835 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
12836 | if ((to[-2] == '\r' && to[-1] == '\n') || |
12837 | (to[-2] == '\n' && to[-1] == '\r')) | |
12838 | { | |
f63a84b2 LW |
12839 | to[-2] = '\n'; |
12840 | to--; | |
95a20fc0 | 12841 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
12842 | } |
12843 | else if (to[-1] == '\r') | |
12844 | to[-1] = '\n'; | |
12845 | } | |
95a20fc0 | 12846 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
12847 | to[-1] = '\n'; |
12848 | #endif | |
12849 | ||
220e2d4e | 12850 | read_more_line: |
02aa26ce NT |
12851 | /* if we're out of file, or a read fails, bail and reset the current |
12852 | line marker so we can report where the unterminated string began | |
12853 | */ | |
5db06880 NC |
12854 | #ifdef PERL_MAD |
12855 | if (PL_madskills) { | |
c35e046a | 12856 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
12857 | if (PL_thisstuff) |
12858 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12859 | else |
cd81e915 | 12860 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12861 | } |
12862 | #endif | |
f0e67a1d Z |
12863 | CopLINE_inc(PL_curcop); |
12864 | PL_bufptr = PL_bufend; | |
12865 | if (!lex_next_chunk(0)) { | |
c07a80fd | 12866 | sv_free(sv); |
eb160463 | 12867 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 12868 | return NULL; |
79072805 | 12869 | } |
f0e67a1d | 12870 | s = PL_bufptr; |
5db06880 NC |
12871 | #ifdef PERL_MAD |
12872 | stuffstart = 0; | |
12873 | #endif | |
378cc40b | 12874 | } |
4e553d73 | 12875 | |
02aa26ce NT |
12876 | /* at this point, we have successfully read the delimited string */ |
12877 | ||
220e2d4e | 12878 | if (!PL_encoding || UTF) { |
5db06880 NC |
12879 | #ifdef PERL_MAD |
12880 | if (PL_madskills) { | |
c35e046a | 12881 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 12882 | const int len = s - tstart; |
cd81e915 | 12883 | if (PL_thisstuff) |
c35e046a | 12884 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12885 | else |
c35e046a | 12886 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12887 | if (!PL_thisclose && !keep_delims) |
12888 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
12889 | } |
12890 | #endif | |
12891 | ||
220e2d4e IH |
12892 | if (keep_delims) |
12893 | sv_catpvn(sv, s, termlen); | |
12894 | s += termlen; | |
12895 | } | |
5db06880 NC |
12896 | #ifdef PERL_MAD |
12897 | else { | |
12898 | if (PL_madskills) { | |
c35e046a AL |
12899 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
12900 | const int len = s - tstart - termlen; | |
cd81e915 | 12901 | if (PL_thisstuff) |
c35e046a | 12902 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12903 | else |
c35e046a | 12904 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12905 | if (!PL_thisclose && !keep_delims) |
12906 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
12907 | } |
12908 | } | |
12909 | #endif | |
220e2d4e | 12910 | if (has_utf8 || PL_encoding) |
b1c7b182 | 12911 | SvUTF8_on(sv); |
d0063567 | 12912 | |
57843af0 | 12913 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
12914 | |
12915 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
12916 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
12917 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 12918 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 12919 | } |
02aa26ce NT |
12920 | |
12921 | /* decide whether this is the first or second quoted string we've read | |
12922 | for this op | |
12923 | */ | |
4e553d73 | 12924 | |
3280af22 NIS |
12925 | if (PL_lex_stuff) |
12926 | PL_lex_repl = sv; | |
79072805 | 12927 | else |
3280af22 | 12928 | PL_lex_stuff = sv; |
378cc40b LW |
12929 | return s; |
12930 | } | |
12931 | ||
02aa26ce NT |
12932 | /* |
12933 | scan_num | |
12934 | takes: pointer to position in buffer | |
12935 | returns: pointer to new position in buffer | |
6154021b | 12936 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
12937 | |
12938 | Read a number in any of the formats that Perl accepts: | |
12939 | ||
7fd134d9 JH |
12940 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
12941 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
12942 | 0b[01](_?[01])* |
12943 | 0[0-7](_?[0-7])* | |
12944 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 12945 | |
3280af22 | 12946 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
12947 | thing it reads. |
12948 | ||
12949 | If it reads a number without a decimal point or an exponent, it will | |
12950 | try converting the number to an integer and see if it can do so | |
12951 | without loss of precision. | |
12952 | */ | |
4e553d73 | 12953 | |
378cc40b | 12954 | char * |
bfed75c6 | 12955 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 12956 | { |
97aff369 | 12957 | dVAR; |
bfed75c6 | 12958 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
12959 | register char *d; /* destination in temp buffer */ |
12960 | register char *e; /* end of temp buffer */ | |
86554af2 | 12961 | NV nv; /* number read, as a double */ |
a0714e2c | 12962 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 12963 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 12964 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 12965 | static char const number_too_long[] = "Number too long"; |
378cc40b | 12966 | |
7918f24d NC |
12967 | PERL_ARGS_ASSERT_SCAN_NUM; |
12968 | ||
02aa26ce NT |
12969 | /* We use the first character to decide what type of number this is */ |
12970 | ||
378cc40b | 12971 | switch (*s) { |
79072805 | 12972 | default: |
cea2e8a9 | 12973 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 12974 | |
02aa26ce | 12975 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 12976 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
12977 | case '0': |
12978 | { | |
02aa26ce NT |
12979 | /* variables: |
12980 | u holds the "number so far" | |
4f19785b WSI |
12981 | shift the power of 2 of the base |
12982 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
12983 | overflowed was the number more than we can hold? |
12984 | ||
12985 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
12986 | we in octal/hex/binary?" indicator to disallow hex characters |
12987 | when in octal mode. | |
02aa26ce | 12988 | */ |
9e24b6e2 JH |
12989 | NV n = 0.0; |
12990 | UV u = 0; | |
79072805 | 12991 | I32 shift; |
9e24b6e2 | 12992 | bool overflowed = FALSE; |
61f33854 | 12993 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
12994 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
12995 | static const char* const bases[5] = | |
12996 | { "", "binary", "", "octal", "hexadecimal" }; | |
12997 | static const char* const Bases[5] = | |
12998 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
12999 | static const char* const maxima[5] = | |
13000 | { "", | |
13001 | "0b11111111111111111111111111111111", | |
13002 | "", | |
13003 | "037777777777", | |
13004 | "0xffffffff" }; | |
bfed75c6 | 13005 | const char *base, *Base, *max; |
378cc40b | 13006 | |
02aa26ce | 13007 | /* check for hex */ |
a674e8db | 13008 | if (s[1] == 'x' || s[1] == 'X') { |
378cc40b LW |
13009 | shift = 4; |
13010 | s += 2; | |
61f33854 | 13011 | just_zero = FALSE; |
a674e8db | 13012 | } else if (s[1] == 'b' || s[1] == 'B') { |
4f19785b WSI |
13013 | shift = 1; |
13014 | s += 2; | |
61f33854 | 13015 | just_zero = FALSE; |
378cc40b | 13016 | } |
02aa26ce | 13017 | /* check for a decimal in disguise */ |
b78218b7 | 13018 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 13019 | goto decimal; |
02aa26ce | 13020 | /* so it must be octal */ |
928753ea | 13021 | else { |
378cc40b | 13022 | shift = 3; |
928753ea JH |
13023 | s++; |
13024 | } | |
13025 | ||
13026 | if (*s == '_') { | |
a2a5de95 | 13027 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
13028 | "Misplaced _ in number"); |
13029 | lastub = s++; | |
13030 | } | |
9e24b6e2 JH |
13031 | |
13032 | base = bases[shift]; | |
13033 | Base = Bases[shift]; | |
13034 | max = maxima[shift]; | |
02aa26ce | 13035 | |
4f19785b | 13036 | /* read the rest of the number */ |
378cc40b | 13037 | for (;;) { |
9e24b6e2 | 13038 | /* x is used in the overflow test, |
893fe2c2 | 13039 | b is the digit we're adding on. */ |
9e24b6e2 | 13040 | UV x, b; |
55497cff | 13041 | |
378cc40b | 13042 | switch (*s) { |
02aa26ce NT |
13043 | |
13044 | /* if we don't mention it, we're done */ | |
378cc40b LW |
13045 | default: |
13046 | goto out; | |
02aa26ce | 13047 | |
928753ea | 13048 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 13049 | case '_': |
a2a5de95 NC |
13050 | if (lastub && s == lastub + 1) |
13051 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13052 | "Misplaced _ in number"); | |
928753ea | 13053 | lastub = s++; |
de3bb511 | 13054 | break; |
02aa26ce NT |
13055 | |
13056 | /* 8 and 9 are not octal */ | |
378cc40b | 13057 | case '8': case '9': |
4f19785b | 13058 | if (shift == 3) |
cea2e8a9 | 13059 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 13060 | /* FALL THROUGH */ |
02aa26ce NT |
13061 | |
13062 | /* octal digits */ | |
4f19785b | 13063 | case '2': case '3': case '4': |
378cc40b | 13064 | case '5': case '6': case '7': |
4f19785b | 13065 | if (shift == 1) |
cea2e8a9 | 13066 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
13067 | /* FALL THROUGH */ |
13068 | ||
13069 | case '0': case '1': | |
02aa26ce | 13070 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 13071 | goto digit; |
02aa26ce NT |
13072 | |
13073 | /* hex digits */ | |
378cc40b LW |
13074 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
13075 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 13076 | /* make sure they said 0x */ |
378cc40b LW |
13077 | if (shift != 4) |
13078 | goto out; | |
55497cff | 13079 | b = (*s++ & 7) + 9; |
02aa26ce NT |
13080 | |
13081 | /* Prepare to put the digit we have onto the end | |
13082 | of the number so far. We check for overflows. | |
13083 | */ | |
13084 | ||
55497cff | 13085 | digit: |
61f33854 | 13086 | just_zero = FALSE; |
9e24b6e2 JH |
13087 | if (!overflowed) { |
13088 | x = u << shift; /* make room for the digit */ | |
13089 | ||
13090 | if ((x >> shift) != u | |
13091 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
13092 | overflowed = TRUE; |
13093 | n = (NV) u; | |
9b387841 NC |
13094 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), |
13095 | "Integer overflow in %s number", | |
13096 | base); | |
9e24b6e2 JH |
13097 | } else |
13098 | u = x | b; /* add the digit to the end */ | |
13099 | } | |
13100 | if (overflowed) { | |
13101 | n *= nvshift[shift]; | |
13102 | /* If an NV has not enough bits in its | |
13103 | * mantissa to represent an UV this summing of | |
13104 | * small low-order numbers is a waste of time | |
13105 | * (because the NV cannot preserve the | |
13106 | * low-order bits anyway): we could just | |
13107 | * remember when did we overflow and in the | |
13108 | * end just multiply n by the right | |
13109 | * amount. */ | |
13110 | n += (NV) b; | |
55497cff | 13111 | } |
378cc40b LW |
13112 | break; |
13113 | } | |
13114 | } | |
02aa26ce NT |
13115 | |
13116 | /* if we get here, we had success: make a scalar value from | |
13117 | the number. | |
13118 | */ | |
378cc40b | 13119 | out: |
928753ea JH |
13120 | |
13121 | /* final misplaced underbar check */ | |
13122 | if (s[-1] == '_') { | |
a2a5de95 | 13123 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
13124 | } |
13125 | ||
9e24b6e2 | 13126 | if (overflowed) { |
a2a5de95 NC |
13127 | if (n > 4294967295.0) |
13128 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
13129 | "%s number > %s non-portable", | |
13130 | Base, max); | |
b081dd7e | 13131 | sv = newSVnv(n); |
9e24b6e2 JH |
13132 | } |
13133 | else { | |
15041a67 | 13134 | #if UVSIZE > 4 |
a2a5de95 NC |
13135 | if (u > 0xffffffff) |
13136 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
13137 | "%s number > %s non-portable", | |
13138 | Base, max); | |
2cc4c2dc | 13139 | #endif |
b081dd7e | 13140 | sv = newSVuv(u); |
9e24b6e2 | 13141 | } |
61f33854 | 13142 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 13143 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 13144 | sv, NULL, NULL, 0); |
61f33854 | 13145 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 13146 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
13147 | } |
13148 | break; | |
02aa26ce NT |
13149 | |
13150 | /* | |
13151 | handle decimal numbers. | |
13152 | we're also sent here when we read a 0 as the first digit | |
13153 | */ | |
378cc40b LW |
13154 | case '1': case '2': case '3': case '4': case '5': |
13155 | case '6': case '7': case '8': case '9': case '.': | |
13156 | decimal: | |
3280af22 NIS |
13157 | d = PL_tokenbuf; |
13158 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 13159 | floatit = FALSE; |
02aa26ce NT |
13160 | |
13161 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 13162 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 13163 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
13164 | if -w is on |
13165 | */ | |
93a17b20 | 13166 | if (*s == '_') { |
a2a5de95 NC |
13167 | if (lastub && s == lastub + 1) |
13168 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13169 | "Misplaced _ in number"); | |
928753ea | 13170 | lastub = s++; |
93a17b20 | 13171 | } |
fc36a67e | 13172 | else { |
02aa26ce | 13173 | /* check for end of fixed-length buffer */ |
fc36a67e | 13174 | if (d >= e) |
cea2e8a9 | 13175 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 13176 | /* if we're ok, copy the character */ |
378cc40b | 13177 | *d++ = *s++; |
fc36a67e | 13178 | } |
378cc40b | 13179 | } |
02aa26ce NT |
13180 | |
13181 | /* final misplaced underbar check */ | |
928753ea | 13182 | if (lastub && s == lastub + 1) { |
a2a5de95 | 13183 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 13184 | } |
02aa26ce NT |
13185 | |
13186 | /* read a decimal portion if there is one. avoid | |
13187 | 3..5 being interpreted as the number 3. followed | |
13188 | by .5 | |
13189 | */ | |
2f3197b3 | 13190 | if (*s == '.' && s[1] != '.') { |
79072805 | 13191 | floatit = TRUE; |
378cc40b | 13192 | *d++ = *s++; |
02aa26ce | 13193 | |
928753ea | 13194 | if (*s == '_') { |
a2a5de95 NC |
13195 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13196 | "Misplaced _ in number"); | |
928753ea JH |
13197 | lastub = s; |
13198 | } | |
13199 | ||
13200 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 13201 | */ |
fc36a67e | 13202 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 13203 | /* fixed length buffer check */ |
fc36a67e | 13204 | if (d >= e) |
cea2e8a9 | 13205 | Perl_croak(aTHX_ number_too_long); |
928753ea | 13206 | if (*s == '_') { |
a2a5de95 NC |
13207 | if (lastub && s == lastub + 1) |
13208 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13209 | "Misplaced _ in number"); | |
928753ea JH |
13210 | lastub = s; |
13211 | } | |
13212 | else | |
fc36a67e | 13213 | *d++ = *s; |
378cc40b | 13214 | } |
928753ea JH |
13215 | /* fractional part ending in underbar? */ |
13216 | if (s[-1] == '_') { | |
a2a5de95 NC |
13217 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13218 | "Misplaced _ in number"); | |
928753ea | 13219 | } |
dd629d5b GS |
13220 | if (*s == '.' && isDIGIT(s[1])) { |
13221 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 13222 | s = start; |
dd629d5b GS |
13223 | goto vstring; |
13224 | } | |
378cc40b | 13225 | } |
02aa26ce NT |
13226 | |
13227 | /* read exponent part, if present */ | |
3792a11b | 13228 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
13229 | floatit = TRUE; |
13230 | s++; | |
02aa26ce NT |
13231 | |
13232 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 13233 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 13234 | |
7fd134d9 JH |
13235 | /* stray preinitial _ */ |
13236 | if (*s == '_') { | |
a2a5de95 NC |
13237 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13238 | "Misplaced _ in number"); | |
7fd134d9 JH |
13239 | lastub = s++; |
13240 | } | |
13241 | ||
02aa26ce | 13242 | /* allow positive or negative exponent */ |
378cc40b LW |
13243 | if (*s == '+' || *s == '-') |
13244 | *d++ = *s++; | |
02aa26ce | 13245 | |
7fd134d9 JH |
13246 | /* stray initial _ */ |
13247 | if (*s == '_') { | |
a2a5de95 NC |
13248 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
13249 | "Misplaced _ in number"); | |
7fd134d9 JH |
13250 | lastub = s++; |
13251 | } | |
13252 | ||
7fd134d9 JH |
13253 | /* read digits of exponent */ |
13254 | while (isDIGIT(*s) || *s == '_') { | |
13255 | if (isDIGIT(*s)) { | |
13256 | if (d >= e) | |
13257 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 13258 | *d++ = *s++; |
7fd134d9 JH |
13259 | } |
13260 | else { | |
041457d9 | 13261 | if (((lastub && s == lastub + 1) || |
a2a5de95 NC |
13262 | (!isDIGIT(s[1]) && s[1] != '_'))) |
13263 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
13264 | "Misplaced _ in number"); | |
b3b48e3e | 13265 | lastub = s++; |
7fd134d9 | 13266 | } |
7fd134d9 | 13267 | } |
378cc40b | 13268 | } |
02aa26ce | 13269 | |
02aa26ce | 13270 | |
0b7fceb9 | 13271 | /* |
58bb9ec3 NC |
13272 | We try to do an integer conversion first if no characters |
13273 | indicating "float" have been found. | |
0b7fceb9 MU |
13274 | */ |
13275 | ||
13276 | if (!floatit) { | |
58bb9ec3 | 13277 | UV uv; |
6136c704 | 13278 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
13279 | |
13280 | if (flags == IS_NUMBER_IN_UV) { | |
13281 | if (uv <= IV_MAX) | |
b081dd7e | 13282 | sv = newSViv(uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 13283 | else |
b081dd7e | 13284 | sv = newSVuv(uv); |
58bb9ec3 NC |
13285 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
13286 | if (uv <= (UV) IV_MIN) | |
b081dd7e | 13287 | sv = newSViv(-(IV)uv); |
58bb9ec3 NC |
13288 | else |
13289 | floatit = TRUE; | |
13290 | } else | |
13291 | floatit = TRUE; | |
13292 | } | |
0b7fceb9 | 13293 | if (floatit) { |
58bb9ec3 NC |
13294 | /* terminate the string */ |
13295 | *d = '\0'; | |
86554af2 | 13296 | nv = Atof(PL_tokenbuf); |
b081dd7e | 13297 | sv = newSVnv(nv); |
86554af2 | 13298 | } |
86554af2 | 13299 | |
eb0d8d16 NC |
13300 | if ( floatit |
13301 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
13302 | const char *const key = floatit ? "float" : "integer"; | |
13303 | const STRLEN keylen = floatit ? 5 : 7; | |
13304 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
13305 | key, keylen, sv, NULL, NULL, 0); | |
13306 | } | |
378cc40b | 13307 | break; |
0b7fceb9 | 13308 | |
e312add1 | 13309 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 13310 | case 'v': |
dd629d5b | 13311 | vstring: |
561b68a9 | 13312 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 13313 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 13314 | break; |
79072805 | 13315 | } |
a687059c | 13316 | |
02aa26ce NT |
13317 | /* make the op for the constant and return */ |
13318 | ||
a86a20aa | 13319 | if (sv) |
b73d6f50 | 13320 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 13321 | else |
5f66b61c | 13322 | lvalp->opval = NULL; |
a687059c | 13323 | |
73d840c0 | 13324 | return (char *)s; |
378cc40b LW |
13325 | } |
13326 | ||
76e3520e | 13327 | STATIC char * |
cea2e8a9 | 13328 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 13329 | { |
97aff369 | 13330 | dVAR; |
79072805 | 13331 | register char *eol; |
378cc40b | 13332 | register char *t; |
6136c704 | 13333 | SV * const stuff = newSVpvs(""); |
79072805 | 13334 | bool needargs = FALSE; |
c5ee2135 | 13335 | bool eofmt = FALSE; |
5db06880 NC |
13336 | #ifdef PERL_MAD |
13337 | char *tokenstart = s; | |
4f61fd4b JC |
13338 | SV* savewhite = NULL; |
13339 | ||
5db06880 | 13340 | if (PL_madskills) { |
cd81e915 NC |
13341 | savewhite = PL_thiswhite; |
13342 | PL_thiswhite = 0; | |
5db06880 NC |
13343 | } |
13344 | #endif | |
378cc40b | 13345 | |
7918f24d NC |
13346 | PERL_ARGS_ASSERT_SCAN_FORMLINE; |
13347 | ||
79072805 | 13348 | while (!needargs) { |
a1b95068 | 13349 | if (*s == '.') { |
c35e046a | 13350 | t = s+1; |
51882d45 | 13351 | #ifdef PERL_STRICT_CR |
c35e046a AL |
13352 | while (SPACE_OR_TAB(*t)) |
13353 | t++; | |
51882d45 | 13354 | #else |
c35e046a AL |
13355 | while (SPACE_OR_TAB(*t) || *t == '\r') |
13356 | t++; | |
51882d45 | 13357 | #endif |
c5ee2135 WL |
13358 | if (*t == '\n' || t == PL_bufend) { |
13359 | eofmt = TRUE; | |
79072805 | 13360 | break; |
c5ee2135 | 13361 | } |
79072805 | 13362 | } |
3280af22 | 13363 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 13364 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 13365 | if (!eol++) |
3280af22 | 13366 | eol = PL_bufend; |
0f85fab0 LW |
13367 | } |
13368 | else | |
3280af22 | 13369 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 13370 | if (*s != '#') { |
a0d0e21e LW |
13371 | for (t = s; t < eol; t++) { |
13372 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
13373 | needargs = FALSE; | |
13374 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 13375 | } |
a0d0e21e LW |
13376 | if (*t == '@' || *t == '^') |
13377 | needargs = TRUE; | |
378cc40b | 13378 | } |
7121b347 MG |
13379 | if (eol > s) { |
13380 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 13381 | #ifndef PERL_STRICT_CR |
7121b347 MG |
13382 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
13383 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
13384 | end[-2] = '\n'; | |
13385 | end[-1] = '\0'; | |
b162af07 | 13386 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 13387 | } |
2dc4c65b | 13388 | #endif |
7121b347 MG |
13389 | } |
13390 | else | |
13391 | break; | |
79072805 | 13392 | } |
95a20fc0 | 13393 | s = (char*)eol; |
3280af22 | 13394 | if (PL_rsfp) { |
f0e67a1d | 13395 | bool got_some; |
5db06880 NC |
13396 | #ifdef PERL_MAD |
13397 | if (PL_madskills) { | |
cd81e915 NC |
13398 | if (PL_thistoken) |
13399 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 13400 | else |
cd81e915 | 13401 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
13402 | } |
13403 | #endif | |
f0e67a1d Z |
13404 | PL_bufptr = PL_bufend; |
13405 | CopLINE_inc(PL_curcop); | |
13406 | got_some = lex_next_chunk(0); | |
13407 | CopLINE_dec(PL_curcop); | |
13408 | s = PL_bufptr; | |
5db06880 | 13409 | #ifdef PERL_MAD |
f0e67a1d | 13410 | tokenstart = PL_bufptr; |
5db06880 | 13411 | #endif |
f0e67a1d | 13412 | if (!got_some) |
378cc40b | 13413 | break; |
378cc40b | 13414 | } |
463ee0b2 | 13415 | incline(s); |
79072805 | 13416 | } |
a0d0e21e LW |
13417 | enough: |
13418 | if (SvCUR(stuff)) { | |
3280af22 | 13419 | PL_expect = XTERM; |
79072805 | 13420 | if (needargs) { |
3280af22 | 13421 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 13422 | start_force(PL_curforce); |
9ded7720 | 13423 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
13424 | force_next(','); |
13425 | } | |
a0d0e21e | 13426 | else |
3280af22 | 13427 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 13428 | if (!IN_BYTES) { |
95a20fc0 | 13429 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
13430 | SvUTF8_on(stuff); |
13431 | else if (PL_encoding) | |
13432 | sv_recode_to_utf8(stuff, PL_encoding); | |
13433 | } | |
cd81e915 | 13434 | start_force(PL_curforce); |
9ded7720 | 13435 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 13436 | force_next(THING); |
cd81e915 | 13437 | start_force(PL_curforce); |
9ded7720 | 13438 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 13439 | force_next(LSTOP); |
378cc40b | 13440 | } |
79072805 | 13441 | else { |
8990e307 | 13442 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
13443 | if (eofmt) |
13444 | PL_lex_formbrack = 0; | |
3280af22 | 13445 | PL_bufptr = s; |
79072805 | 13446 | } |
5db06880 NC |
13447 | #ifdef PERL_MAD |
13448 | if (PL_madskills) { | |
cd81e915 NC |
13449 | if (PL_thistoken) |
13450 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 13451 | else |
cd81e915 NC |
13452 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
13453 | PL_thiswhite = savewhite; | |
5db06880 NC |
13454 | } |
13455 | #endif | |
79072805 | 13456 | return s; |
378cc40b | 13457 | } |
a687059c | 13458 | |
ba6d6ac9 | 13459 | I32 |
864dbfa3 | 13460 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 13461 | { |
97aff369 | 13462 | dVAR; |
a3b680e6 | 13463 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 13464 | CV* const outsidecv = PL_compcv; |
8990e307 | 13465 | |
3280af22 NIS |
13466 | if (PL_compcv) { |
13467 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 13468 | } |
7766f137 | 13469 | SAVEI32(PL_subline); |
3280af22 | 13470 | save_item(PL_subname); |
3280af22 | 13471 | SAVESPTR(PL_compcv); |
3280af22 | 13472 | |
ea726b52 | 13473 | PL_compcv = MUTABLE_CV(newSV_type(is_format ? SVt_PVFM : SVt_PVCV)); |
3280af22 NIS |
13474 | CvFLAGS(PL_compcv) |= flags; |
13475 | ||
57843af0 | 13476 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 13477 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
ea726b52 | 13478 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outsidecv)); |
a3985cdc | 13479 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 13480 | |
8990e307 LW |
13481 | return oldsavestack_ix; |
13482 | } | |
13483 | ||
084592ab CN |
13484 | #ifdef __SC__ |
13485 | #pragma segment Perl_yylex | |
13486 | #endif | |
af41e527 NC |
13487 | static int |
13488 | S_yywarn(pTHX_ const char *const s) | |
8990e307 | 13489 | { |
97aff369 | 13490 | dVAR; |
7918f24d NC |
13491 | |
13492 | PERL_ARGS_ASSERT_YYWARN; | |
13493 | ||
faef0170 | 13494 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 13495 | yyerror(s); |
faef0170 | 13496 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 13497 | return 0; |
8990e307 LW |
13498 | } |
13499 | ||
13500 | int | |
15f169a1 | 13501 | Perl_yyerror(pTHX_ const char *const s) |
463ee0b2 | 13502 | { |
97aff369 | 13503 | dVAR; |
bfed75c6 AL |
13504 | const char *where = NULL; |
13505 | const char *context = NULL; | |
68dc0745 | 13506 | int contlen = -1; |
46fc3d4c | 13507 | SV *msg; |
5912531f | 13508 | int yychar = PL_parser->yychar; |
463ee0b2 | 13509 | |
7918f24d NC |
13510 | PERL_ARGS_ASSERT_YYERROR; |
13511 | ||
3280af22 | 13512 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 13513 | where = "at EOF"; |
8bcfe651 TM |
13514 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
13515 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
13516 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13517 | /* |
13518 | Only for NetWare: | |
13519 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13520 | when the script has error such as not having the closing quotes like: | |
13521 | if ($var eq "value) | |
13522 | Checking of white spaces is anyway done in NetWare code. | |
13523 | */ | |
13524 | #ifndef NETWARE | |
3280af22 NIS |
13525 | while (isSPACE(*PL_oldoldbufptr)) |
13526 | PL_oldoldbufptr++; | |
f355267c | 13527 | #endif |
3280af22 NIS |
13528 | context = PL_oldoldbufptr; |
13529 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 13530 | } |
8bcfe651 TM |
13531 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
13532 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13533 | /* |
13534 | Only for NetWare: | |
13535 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13536 | when the script has error such as not having the closing quotes like: | |
13537 | if ($var eq "value) | |
13538 | Checking of white spaces is anyway done in NetWare code. | |
13539 | */ | |
13540 | #ifndef NETWARE | |
3280af22 NIS |
13541 | while (isSPACE(*PL_oldbufptr)) |
13542 | PL_oldbufptr++; | |
f355267c | 13543 | #endif |
3280af22 NIS |
13544 | context = PL_oldbufptr; |
13545 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
13546 | } |
13547 | else if (yychar > 255) | |
68dc0745 | 13548 | where = "next token ???"; |
12fbd33b | 13549 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
13550 | if (PL_lex_state == LEX_NORMAL || |
13551 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 13552 | where = "at end of line"; |
3280af22 | 13553 | else if (PL_lex_inpat) |
68dc0745 | 13554 | where = "within pattern"; |
463ee0b2 | 13555 | else |
68dc0745 | 13556 | where = "within string"; |
463ee0b2 | 13557 | } |
46fc3d4c | 13558 | else { |
84bafc02 | 13559 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 13560 | if (yychar < 32) |
cea2e8a9 | 13561 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 13562 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 13563 | const char string = yychar; |
5e7aa789 NC |
13564 | sv_catpvn(where_sv, &string, 1); |
13565 | } | |
463ee0b2 | 13566 | else |
cea2e8a9 | 13567 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 13568 | where = SvPVX_const(where_sv); |
463ee0b2 | 13569 | } |
46fc3d4c | 13570 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 13571 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 13572 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 13573 | if (context) |
cea2e8a9 | 13574 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 13575 | else |
cea2e8a9 | 13576 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 13577 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 13578 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 13579 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 13580 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 13581 | PL_multi_end = 0; |
a0d0e21e | 13582 | } |
500960a6 | 13583 | if (PL_in_eval & EVAL_WARNONLY) { |
9b387841 | 13584 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); |
500960a6 | 13585 | } |
463ee0b2 | 13586 | else |
5a844595 | 13587 | qerror(msg); |
c7d6bfb2 GS |
13588 | if (PL_error_count >= 10) { |
13589 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 13590 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 13591 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
13592 | else |
13593 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 13594 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 13595 | } |
3280af22 | 13596 | PL_in_my = 0; |
5c284bb0 | 13597 | PL_in_my_stash = NULL; |
463ee0b2 LW |
13598 | return 0; |
13599 | } | |
084592ab CN |
13600 | #ifdef __SC__ |
13601 | #pragma segment Main | |
13602 | #endif | |
4e35701f | 13603 | |
b250498f | 13604 | STATIC char* |
3ae08724 | 13605 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 13606 | { |
97aff369 | 13607 | dVAR; |
f54cb97a | 13608 | const STRLEN slen = SvCUR(PL_linestr); |
7918f24d NC |
13609 | |
13610 | PERL_ARGS_ASSERT_SWALLOW_BOM; | |
13611 | ||
7aa207d6 | 13612 | switch (s[0]) { |
4e553d73 NIS |
13613 | case 0xFF: |
13614 | if (s[1] == 0xFE) { | |
ee6ba15d | 13615 | /* UTF-16 little-endian? (or UTF-32LE?) */ |
3ae08724 | 13616 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
ee6ba15d | 13617 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32LE"); |
01ec43d0 | 13618 | #ifndef PERL_NO_UTF16_FILTER |
ee6ba15d | 13619 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (BOM)\n"); |
3ae08724 | 13620 | s += 2; |
dea0fc0b | 13621 | if (PL_bufend > (char*)s) { |
81a923f4 | 13622 | s = add_utf16_textfilter(s, TRUE); |
dea0fc0b | 13623 | } |
b250498f | 13624 | #else |
ee6ba15d | 13625 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); |
b250498f | 13626 | #endif |
01ec43d0 GS |
13627 | } |
13628 | break; | |
78ae23f5 | 13629 | case 0xFE: |
7aa207d6 | 13630 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 13631 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13632 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b JH |
13633 | s += 2; |
13634 | if (PL_bufend > (char *)s) { | |
81a923f4 | 13635 | s = add_utf16_textfilter(s, FALSE); |
dea0fc0b | 13636 | } |
b250498f | 13637 | #else |
ee6ba15d | 13638 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); |
b250498f | 13639 | #endif |
01ec43d0 GS |
13640 | } |
13641 | break; | |
3ae08724 GS |
13642 | case 0xEF: |
13643 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 13644 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
13645 | s += 3; /* UTF-8 */ |
13646 | } | |
13647 | break; | |
13648 | case 0: | |
7aa207d6 JH |
13649 | if (slen > 3) { |
13650 | if (s[1] == 0) { | |
13651 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
13652 | /* UTF-32 big-endian */ | |
ee6ba15d | 13653 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32BE"); |
7aa207d6 JH |
13654 | } |
13655 | } | |
13656 | else if (s[2] == 0 && s[3] != 0) { | |
13657 | /* Leading bytes | |
13658 | * 00 xx 00 xx | |
13659 | * are a good indicator of UTF-16BE. */ | |
ee6ba15d | 13660 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13661 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); |
ee6ba15d EB |
13662 | s = add_utf16_textfilter(s, FALSE); |
13663 | #else | |
13664 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); | |
13665 | #endif | |
7aa207d6 | 13666 | } |
01ec43d0 | 13667 | } |
e294cc5d JH |
13668 | #ifdef EBCDIC |
13669 | case 0xDD: | |
13670 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
13671 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
13672 | s += 4; /* UTF-8 */ | |
13673 | } | |
13674 | break; | |
13675 | #endif | |
13676 | ||
7aa207d6 JH |
13677 | default: |
13678 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
13679 | /* Leading bytes | |
13680 | * xx 00 xx 00 | |
13681 | * are a good indicator of UTF-16LE. */ | |
ee6ba15d | 13682 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13683 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); |
81a923f4 | 13684 | s = add_utf16_textfilter(s, TRUE); |
ee6ba15d EB |
13685 | #else |
13686 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); | |
13687 | #endif | |
7aa207d6 | 13688 | } |
01ec43d0 | 13689 | } |
b8f84bb2 | 13690 | return (char*)s; |
b250498f | 13691 | } |
4755096e | 13692 | |
6e3aabd6 GS |
13693 | |
13694 | #ifndef PERL_NO_UTF16_FILTER | |
13695 | static I32 | |
a28af015 | 13696 | S_utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 13697 | { |
97aff369 | 13698 | dVAR; |
f3040f2c | 13699 | SV *const filter = FILTER_DATA(idx); |
2a773401 NC |
13700 | /* We re-use this each time round, throwing the contents away before we |
13701 | return. */ | |
2a773401 | 13702 | SV *const utf16_buffer = MUTABLE_SV(IoTOP_GV(filter)); |
f3040f2c | 13703 | SV *const utf8_buffer = filter; |
c28d6105 | 13704 | IV status = IoPAGE(filter); |
f2338a2e | 13705 | const bool reverse = cBOOL(IoLINES(filter)); |
d2d1d4de | 13706 | I32 retval; |
c8b0cbae | 13707 | |
c85ae797 NC |
13708 | PERL_ARGS_ASSERT_UTF16_TEXTFILTER; |
13709 | ||
c8b0cbae NC |
13710 | /* As we're automatically added, at the lowest level, and hence only called |
13711 | from this file, we can be sure that we're not called in block mode. Hence | |
13712 | don't bother writing code to deal with block mode. */ | |
13713 | if (maxlen) { | |
13714 | Perl_croak(aTHX_ "panic: utf16_textfilter called in block mode (for %d characters)", maxlen); | |
13715 | } | |
c28d6105 NC |
13716 | if (status < 0) { |
13717 | Perl_croak(aTHX_ "panic: utf16_textfilter called after error (status=%"IVdf")", status); | |
13718 | } | |
1de9afcd | 13719 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
c28d6105 | 13720 | "utf16_textfilter(%p,%ce): idx=%d maxlen=%d status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", |
a28af015 | 13721 | FPTR2DPTR(void *, S_utf16_textfilter), |
c28d6105 NC |
13722 | reverse ? 'l' : 'b', idx, maxlen, status, |
13723 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13724 | ||
13725 | while (1) { | |
13726 | STRLEN chars; | |
13727 | STRLEN have; | |
dea0fc0b | 13728 | I32 newlen; |
2a773401 | 13729 | U8 *end; |
c28d6105 NC |
13730 | /* First, look in our buffer of existing UTF-8 data: */ |
13731 | char *nl = (char *)memchr(SvPVX(utf8_buffer), '\n', SvCUR(utf8_buffer)); | |
13732 | ||
13733 | if (nl) { | |
13734 | ++nl; | |
13735 | } else if (status == 0) { | |
13736 | /* EOF */ | |
13737 | IoPAGE(filter) = 0; | |
13738 | nl = SvEND(utf8_buffer); | |
13739 | } | |
13740 | if (nl) { | |
d2d1d4de NC |
13741 | STRLEN got = nl - SvPVX(utf8_buffer); |
13742 | /* Did we have anything to append? */ | |
13743 | retval = got != 0; | |
13744 | sv_catpvn(sv, SvPVX(utf8_buffer), got); | |
c28d6105 NC |
13745 | /* Everything else in this code works just fine if SVp_POK isn't |
13746 | set. This, however, needs it, and we need it to work, else | |
13747 | we loop infinitely because the buffer is never consumed. */ | |
13748 | sv_chop(utf8_buffer, nl); | |
13749 | break; | |
13750 | } | |
ba77e4cc | 13751 | |
c28d6105 NC |
13752 | /* OK, not a complete line there, so need to read some more UTF-16. |
13753 | Read an extra octect if the buffer currently has an odd number. */ | |
ba77e4cc NC |
13754 | while (1) { |
13755 | if (status <= 0) | |
13756 | break; | |
13757 | if (SvCUR(utf16_buffer) >= 2) { | |
13758 | /* Location of the high octet of the last complete code point. | |
13759 | Gosh, UTF-16 is a pain. All the benefits of variable length, | |
13760 | *coupled* with all the benefits of partial reads and | |
13761 | endianness. */ | |
13762 | const U8 *const last_hi = (U8*)SvPVX(utf16_buffer) | |
13763 | + ((SvCUR(utf16_buffer) & ~1) - (reverse ? 1 : 2)); | |
13764 | ||
13765 | if (*last_hi < 0xd8 || *last_hi > 0xdb) { | |
13766 | break; | |
13767 | } | |
13768 | ||
13769 | /* We have the first half of a surrogate. Read more. */ | |
13770 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter partial surrogate detected at %p\n", last_hi)); | |
13771 | } | |
c28d6105 | 13772 | |
c28d6105 NC |
13773 | status = FILTER_READ(idx + 1, utf16_buffer, |
13774 | 160 + (SvCUR(utf16_buffer) & 1)); | |
13775 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter status=%"IVdf" SvCUR(sv)=%"UVuf"\n", status, (UV)SvCUR(utf16_buffer))); | |
ba77e4cc | 13776 | DEBUG_P({ sv_dump(utf16_buffer); sv_dump(utf8_buffer);}); |
c28d6105 NC |
13777 | if (status < 0) { |
13778 | /* Error */ | |
13779 | IoPAGE(filter) = status; | |
13780 | return status; | |
13781 | } | |
13782 | } | |
13783 | ||
13784 | chars = SvCUR(utf16_buffer) >> 1; | |
13785 | have = SvCUR(utf8_buffer); | |
13786 | SvGROW(utf8_buffer, have + chars * 3 + 1); | |
2a773401 | 13787 | |
aa6dbd60 | 13788 | if (reverse) { |
c28d6105 NC |
13789 | end = utf16_to_utf8_reversed((U8*)SvPVX(utf16_buffer), |
13790 | (U8*)SvPVX_const(utf8_buffer) + have, | |
13791 | chars * 2, &newlen); | |
aa6dbd60 | 13792 | } else { |
2a773401 | 13793 | end = utf16_to_utf8((U8*)SvPVX(utf16_buffer), |
c28d6105 NC |
13794 | (U8*)SvPVX_const(utf8_buffer) + have, |
13795 | chars * 2, &newlen); | |
2a773401 | 13796 | } |
c28d6105 | 13797 | SvCUR_set(utf8_buffer, have + newlen); |
2a773401 | 13798 | *end = '\0'; |
c28d6105 | 13799 | |
e07286ed NC |
13800 | /* No need to keep this SV "well-formed" with a '\0' after the end, as |
13801 | it's private to us, and utf16_to_utf8{,reversed} take a | |
13802 | (pointer,length) pair, rather than a NUL-terminated string. */ | |
13803 | if(SvCUR(utf16_buffer) & 1) { | |
13804 | *SvPVX(utf16_buffer) = SvEND(utf16_buffer)[-1]; | |
13805 | SvCUR_set(utf16_buffer, 1); | |
13806 | } else { | |
13807 | SvCUR_set(utf16_buffer, 0); | |
13808 | } | |
2a773401 | 13809 | } |
c28d6105 NC |
13810 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
13811 | "utf16_textfilter: returns, status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", | |
13812 | status, | |
13813 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13814 | DEBUG_P({ sv_dump(utf8_buffer); sv_dump(sv);}); | |
d2d1d4de | 13815 | return retval; |
6e3aabd6 | 13816 | } |
81a923f4 NC |
13817 | |
13818 | static U8 * | |
13819 | S_add_utf16_textfilter(pTHX_ U8 *const s, bool reversed) | |
13820 | { | |
2a773401 | 13821 | SV *filter = filter_add(S_utf16_textfilter, NULL); |
81a923f4 | 13822 | |
c85ae797 NC |
13823 | PERL_ARGS_ASSERT_ADD_UTF16_TEXTFILTER; |
13824 | ||
c28d6105 | 13825 | IoTOP_GV(filter) = MUTABLE_GV(newSVpvn((char *)s, PL_bufend - (char*)s)); |
f3040f2c | 13826 | sv_setpvs(filter, ""); |
2a773401 | 13827 | IoLINES(filter) = reversed; |
c28d6105 NC |
13828 | IoPAGE(filter) = 1; /* Not EOF */ |
13829 | ||
13830 | /* Sadly, we have to return a valid pointer, come what may, so we have to | |
13831 | ignore any error return from this. */ | |
13832 | SvCUR_set(PL_linestr, 0); | |
13833 | if (FILTER_READ(0, PL_linestr, 0)) { | |
13834 | SvUTF8_on(PL_linestr); | |
81a923f4 | 13835 | } else { |
c28d6105 | 13836 | SvUTF8_on(PL_linestr); |
81a923f4 | 13837 | } |
c28d6105 | 13838 | PL_bufend = SvEND(PL_linestr); |
81a923f4 NC |
13839 | return (U8*)SvPVX(PL_linestr); |
13840 | } | |
6e3aabd6 | 13841 | #endif |
9f4817db | 13842 | |
f333445c JP |
13843 | /* |
13844 | Returns a pointer to the next character after the parsed | |
13845 | vstring, as well as updating the passed in sv. | |
13846 | ||
13847 | Function must be called like | |
13848 | ||
561b68a9 | 13849 | sv = newSV(5); |
65b06e02 | 13850 | s = scan_vstring(s,e,sv); |
f333445c | 13851 | |
65b06e02 | 13852 | where s and e are the start and end of the string. |
f333445c JP |
13853 | The sv should already be large enough to store the vstring |
13854 | passed in, for performance reasons. | |
13855 | ||
13856 | */ | |
13857 | ||
13858 | char * | |
15f169a1 | 13859 | Perl_scan_vstring(pTHX_ const char *s, const char *const e, SV *sv) |
f333445c | 13860 | { |
97aff369 | 13861 | dVAR; |
bfed75c6 AL |
13862 | const char *pos = s; |
13863 | const char *start = s; | |
7918f24d NC |
13864 | |
13865 | PERL_ARGS_ASSERT_SCAN_VSTRING; | |
13866 | ||
f333445c | 13867 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 13868 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 13869 | pos++; |
f333445c JP |
13870 | if ( *pos != '.') { |
13871 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 13872 | const char *next = pos; |
65b06e02 | 13873 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 13874 | ++next; |
65b06e02 | 13875 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
13876 | /* return string not v-string */ |
13877 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 13878 | return (char *)pos; |
f333445c JP |
13879 | } |
13880 | } | |
13881 | ||
13882 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 13883 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 13884 | |
d4c19fe8 AL |
13885 | if (*s == 'v') |
13886 | s++; /* get past 'v' */ | |
f333445c | 13887 | |
76f68e9b | 13888 | sv_setpvs(sv, ""); |
f333445c JP |
13889 | |
13890 | for (;;) { | |
d4c19fe8 | 13891 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
13892 | U8 *tmpend; |
13893 | UV rev = 0; | |
d4c19fe8 AL |
13894 | const char *end = pos; |
13895 | UV mult = 1; | |
13896 | while (--end >= s) { | |
13897 | if (*end != '_') { | |
13898 | const UV orev = rev; | |
f333445c JP |
13899 | rev += (*end - '0') * mult; |
13900 | mult *= 10; | |
9b387841 NC |
13901 | if (orev > rev) |
13902 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
13903 | "Integer overflow in decimal number"); | |
f333445c JP |
13904 | } |
13905 | } | |
13906 | #ifdef EBCDIC | |
13907 | if (rev > 0x7FFFFFFF) | |
13908 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
13909 | #endif | |
13910 | /* Append native character for the rev point */ | |
13911 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
13912 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
13913 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
13914 | SvUTF8_on(sv); | |
65b06e02 | 13915 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
13916 | s = ++pos; |
13917 | else { | |
13918 | s = pos; | |
13919 | break; | |
13920 | } | |
65b06e02 | 13921 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
13922 | pos++; |
13923 | } | |
13924 | SvPOK_on(sv); | |
13925 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
13926 | SvRMAGICAL_on(sv); | |
13927 | } | |
73d840c0 | 13928 | return (char *)s; |
f333445c JP |
13929 | } |
13930 | ||
88e1f1a2 JV |
13931 | int |
13932 | Perl_keyword_plugin_standard(pTHX_ | |
13933 | char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) | |
13934 | { | |
13935 | PERL_ARGS_ASSERT_KEYWORD_PLUGIN_STANDARD; | |
13936 | PERL_UNUSED_CONTEXT; | |
13937 | PERL_UNUSED_ARG(keyword_ptr); | |
13938 | PERL_UNUSED_ARG(keyword_len); | |
13939 | PERL_UNUSED_ARG(op_ptr); | |
13940 | return KEYWORD_PLUGIN_DECLINE; | |
13941 | } | |
13942 | ||
1da4ca5f | 13943 | /* |
28ac2b49 Z |
13944 | =for apidoc Amx|OP *|parse_fullstmt|U32 flags |
13945 | ||
13946 | Parse a single complete Perl statement. This may be a normal imperative | |
13947 | statement, including optional label, or a declaration that has | |
13948 | compile-time effect. It is up to the caller to ensure that the dynamic | |
13949 | parser state (L</PL_parser> et al) is correctly set to reflect the source | |
13950 | of the code to be parsed and the lexical context for the statement. | |
13951 | ||
13952 | The op tree representing the statement is returned. This may be a | |
13953 | null pointer if the statement is null, for example if it was actually | |
13954 | a subroutine definition (which has compile-time side effects). If not | |
13955 | null, it will be the result of a L</newSTATEOP> call, normally including | |
13956 | a C<nextstate> or equivalent op. | |
13957 | ||
13958 | If an error occurs in parsing or compilation, in most cases a valid op | |
13959 | tree (most likely null) is returned anyway. The error is reflected in | |
13960 | the parser state, normally resulting in a single exception at the top | |
13961 | level of parsing which covers all the compilation errors that occurred. | |
13962 | Some compilation errors, however, will throw an exception immediately. | |
13963 | ||
13964 | The I<flags> parameter is reserved for future use, and must always | |
13965 | be zero. | |
13966 | ||
13967 | =cut | |
13968 | */ | |
13969 | ||
13970 | OP * | |
13971 | Perl_parse_fullstmt(pTHX_ U32 flags) | |
13972 | { | |
13973 | OP *fullstmtop; | |
13974 | if (flags) | |
13975 | Perl_croak(aTHX_ "Parsing code internal error (%s)", "parse_fullstmt"); | |
13976 | ENTER; | |
13977 | SAVEVPTR(PL_eval_root); | |
13978 | PL_eval_root = NULL; | |
13979 | if(yyparse(GRAMFULLSTMT) && !PL_parser->error_count) | |
13980 | qerror(Perl_mess(aTHX_ "Parse error")); | |
13981 | fullstmtop = PL_eval_root; | |
13982 | LEAVE; | |
13983 | return fullstmtop; | |
13984 | } | |
13985 | ||
ea25a9b2 | 13986 | void |
f7e3d326 | 13987 | Perl_munge_qwlist_to_paren_list(pTHX_ OP *qwlist) |
ea25a9b2 | 13988 | { |
f7e3d326 | 13989 | PERL_ARGS_ASSERT_MUNGE_QWLIST_TO_PAREN_LIST; |
ea25a9b2 Z |
13990 | deprecate("qw(...) as parentheses"); |
13991 | force_next(')'); | |
13992 | if (qwlist->op_type == OP_STUB) { | |
13993 | op_free(qwlist); | |
13994 | } | |
13995 | else { | |
3d8e05a0 | 13996 | start_force(PL_curforce); |
ea25a9b2 Z |
13997 | NEXTVAL_NEXTTOKE.opval = qwlist; |
13998 | force_next(THING); | |
13999 | } | |
14000 | force_next('('); | |
14001 | } | |
14002 | ||
28ac2b49 | 14003 | /* |
1da4ca5f NC |
14004 | * Local variables: |
14005 | * c-indentation-style: bsd | |
14006 | * c-basic-offset: 4 | |
14007 | * indent-tabs-mode: t | |
14008 | * End: | |
14009 | * | |
37442d52 RGS |
14010 | * ex: set ts=8 sts=4 sw=4 noet: |
14011 | */ |