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 | |
acdf0a21 DM |
48 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
49 | #define YYINITDEPTH 200 | |
50 | ||
199e78b7 DM |
51 | /* XXX temporary backwards compatibility */ |
52 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
53 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
54 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
55 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
56 | #define PL_lex_defer (PL_parser->lex_defer) | |
57 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
58 | #define PL_lex_expect (PL_parser->lex_expect) | |
59 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
60 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
61 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
62 | #define PL_lex_op (PL_parser->lex_op) | |
63 | #define PL_lex_repl (PL_parser->lex_repl) | |
64 | #define PL_lex_starts (PL_parser->lex_starts) | |
65 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
66 | #define PL_multi_start (PL_parser->multi_start) | |
67 | #define PL_multi_open (PL_parser->multi_open) | |
68 | #define PL_multi_close (PL_parser->multi_close) | |
69 | #define PL_pending_ident (PL_parser->pending_ident) | |
70 | #define PL_preambled (PL_parser->preambled) | |
71 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 72 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
73 | #define PL_expect (PL_parser->expect) |
74 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
75 | #define PL_bufptr (PL_parser->bufptr) |
76 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
77 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
78 | #define PL_linestart (PL_parser->linestart) | |
79 | #define PL_bufend (PL_parser->bufend) | |
80 | #define PL_last_uni (PL_parser->last_uni) | |
81 | #define PL_last_lop (PL_parser->last_lop) | |
82 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 83 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 84 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 85 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
86 | #define PL_in_my (PL_parser->in_my) |
87 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 88 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 89 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 90 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
91 | |
92 | #ifdef PERL_MAD | |
93 | # define PL_endwhite (PL_parser->endwhite) | |
94 | # define PL_faketokens (PL_parser->faketokens) | |
95 | # define PL_lasttoke (PL_parser->lasttoke) | |
96 | # define PL_nextwhite (PL_parser->nextwhite) | |
97 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
98 | # define PL_skipwhite (PL_parser->skipwhite) | |
99 | # define PL_thisclose (PL_parser->thisclose) | |
100 | # define PL_thismad (PL_parser->thismad) | |
101 | # define PL_thisopen (PL_parser->thisopen) | |
102 | # define PL_thisstuff (PL_parser->thisstuff) | |
103 | # define PL_thistoken (PL_parser->thistoken) | |
104 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
105 | # define PL_thiswhite (PL_parser->thiswhite) |
106 | # define PL_nexttoke (PL_parser->nexttoke) | |
107 | # define PL_curforce (PL_parser->curforce) | |
108 | #else | |
109 | # define PL_nexttoke (PL_parser->nexttoke) | |
110 | # define PL_nexttype (PL_parser->nexttype) | |
111 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
112 | #endif |
113 | ||
16173588 NC |
114 | /* This can't be done with embed.fnc, because struct yy_parser contains a |
115 | member named pending_ident, which clashes with the generated #define */ | |
3cbf51f5 DM |
116 | static int |
117 | S_pending_ident(pTHX); | |
199e78b7 | 118 | |
0bd48802 | 119 | static const char ident_too_long[] = "Identifier too long"; |
8903cb82 | 120 | |
29595ff2 | 121 | #ifdef PERL_MAD |
29595ff2 | 122 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 123 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 124 | #else |
5db06880 | 125 | # define CURMAD(slot,sv) |
9ded7720 | 126 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
127 | #endif |
128 | ||
9059aa12 LW |
129 | #define XFAKEBRACK 128 |
130 | #define XENUMMASK 127 | |
131 | ||
39e02b42 JH |
132 | #ifdef USE_UTF8_SCRIPTS |
133 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 134 | #else |
746b446a | 135 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 136 | #endif |
a0ed51b3 | 137 | |
b1fc3636 CJ |
138 | /* The maximum number of characters preceding the unrecognized one to display */ |
139 | #define UNRECOGNIZED_PRECEDE_COUNT 10 | |
140 | ||
61f0cdd9 | 141 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
142 | * 1999-02-27 mjd-perl-patch@plover.com */ |
143 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
144 | ||
bf4acbe4 | 145 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') |
bf4acbe4 | 146 | |
ffb4593c NT |
147 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
148 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
149 | * can get by with a single comparison (if the compiler is smart enough). |
150 | */ | |
151 | ||
fb73857a | 152 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
153 | ||
b6007c36 DM |
154 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
155 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
156 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
157 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
158 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
159 | ||
160 | /* at end of code, eg "$x" followed by: */ | |
161 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
162 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
163 | ||
164 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
165 | string or after \E, $foo, etc */ | |
166 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
167 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
168 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
169 | ||
79072805 | 170 | |
bbf60fe6 | 171 | #ifdef DEBUGGING |
27da23d5 | 172 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
173 | "KNOWNEXT", |
174 | "FORMLINE", | |
175 | "INTERPCONST", | |
176 | "INTERPCONCAT", | |
177 | "INTERPENDMAYBE", | |
178 | "INTERPEND", | |
179 | "INTERPSTART", | |
180 | "INTERPPUSH", | |
181 | "INTERPCASEMOD", | |
182 | "INTERPNORMAL", | |
183 | "NORMAL" | |
184 | }; | |
185 | #endif | |
186 | ||
79072805 LW |
187 | #ifdef ff_next |
188 | #undef ff_next | |
d48672a2 LW |
189 | #endif |
190 | ||
79072805 | 191 | #include "keywords.h" |
fe14fcc3 | 192 | |
ffb4593c NT |
193 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
194 | ||
ae986130 LW |
195 | #ifdef CLINE |
196 | #undef CLINE | |
197 | #endif | |
57843af0 | 198 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 199 | |
5db06880 | 200 | #ifdef PERL_MAD |
29595ff2 NC |
201 | # define SKIPSPACE0(s) skipspace0(s) |
202 | # define SKIPSPACE1(s) skipspace1(s) | |
203 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
204 | # define PEEKSPACE(s) skipspace2(s,0) | |
205 | #else | |
206 | # define SKIPSPACE0(s) skipspace(s) | |
207 | # define SKIPSPACE1(s) skipspace(s) | |
208 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
209 | # define PEEKSPACE(s) skipspace(s) | |
210 | #endif | |
211 | ||
ffb4593c NT |
212 | /* |
213 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 214 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
215 | * |
216 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
217 | * OPERATOR : generic operator | |
218 | * AOPERATOR : assignment operator | |
219 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
220 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
221 | * PREREF : *EXPR where EXPR is not a simple identifier | |
222 | * TERM : expression term | |
223 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
224 | * FTST : file test operator | |
225 | * FUN0 : zero-argument function | |
2d2e263d | 226 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
227 | * BOop : bitwise or or xor |
228 | * BAop : bitwise and | |
229 | * SHop : shift operator | |
230 | * PWop : power operator | |
9cbb5ea2 | 231 | * PMop : pattern-matching operator |
ffb4593c NT |
232 | * Aop : addition-level operator |
233 | * Mop : multiplication-level operator | |
234 | * Eop : equality-testing operator | |
e5edeb50 | 235 | * Rop : relational operator <= != gt |
ffb4593c NT |
236 | * |
237 | * Also see LOP and lop() below. | |
238 | */ | |
239 | ||
998054bd | 240 | #ifdef DEBUGGING /* Serve -DT. */ |
704d4215 | 241 | # define REPORT(retval) tokereport((I32)retval, &pl_yylval) |
998054bd | 242 | #else |
bbf60fe6 | 243 | # define REPORT(retval) (retval) |
998054bd SC |
244 | #endif |
245 | ||
bbf60fe6 DM |
246 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
247 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
248 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
249 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
250 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
251 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
252 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
253 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
254 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
255 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
256 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
257 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
258 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
259 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
260 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
261 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
262 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
263 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
264 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
265 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 266 | |
a687059c LW |
267 | /* This bit of chicanery makes a unary function followed by |
268 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
269 | * The UNIDOR macro is for unary functions that can be followed by the // |
270 | * operator (such as C<shift // 0>). | |
a687059c | 271 | */ |
376fcdbf | 272 | #define UNI2(f,x) { \ |
6154021b | 273 | pl_yylval.ival = f; \ |
376fcdbf AL |
274 | PL_expect = x; \ |
275 | PL_bufptr = s; \ | |
276 | PL_last_uni = PL_oldbufptr; \ | |
277 | PL_last_lop_op = f; \ | |
278 | if (*s == '(') \ | |
279 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 280 | s = PEEKSPACE(s); \ |
376fcdbf AL |
281 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
282 | } | |
6f33ba73 RGS |
283 | #define UNI(f) UNI2(f,XTERM) |
284 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 285 | |
376fcdbf | 286 | #define UNIBRACK(f) { \ |
6154021b | 287 | pl_yylval.ival = f; \ |
376fcdbf AL |
288 | PL_bufptr = s; \ |
289 | PL_last_uni = PL_oldbufptr; \ | |
290 | if (*s == '(') \ | |
291 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 292 | s = PEEKSPACE(s); \ |
376fcdbf AL |
293 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
294 | } | |
79072805 | 295 | |
9f68db38 | 296 | /* grandfather return to old style */ |
6154021b | 297 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 298 | |
8fa7f367 JH |
299 | #ifdef DEBUGGING |
300 | ||
6154021b | 301 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
302 | enum token_type { |
303 | TOKENTYPE_NONE, | |
304 | TOKENTYPE_IVAL, | |
6154021b | 305 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
306 | TOKENTYPE_PVAL, |
307 | TOKENTYPE_OPVAL, | |
308 | TOKENTYPE_GVVAL | |
309 | }; | |
310 | ||
6d4a66ac NC |
311 | static struct debug_tokens { |
312 | const int token; | |
313 | enum token_type type; | |
314 | const char *name; | |
315 | } const debug_tokens[] = | |
9041c2e3 | 316 | { |
bbf60fe6 DM |
317 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
318 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
319 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
320 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
321 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
322 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
323 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
324 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
325 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
326 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 327 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
328 | { DO, TOKENTYPE_NONE, "DO" }, |
329 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
330 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
331 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
332 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
333 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
334 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
335 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
336 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
337 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
338 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
339 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
340 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
341 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
342 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 343 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
344 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
345 | { IF, TOKENTYPE_IVAL, "IF" }, | |
346 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
347 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
348 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
349 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
350 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
351 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
352 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
353 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
354 | { MY, TOKENTYPE_IVAL, "MY" }, | |
355 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
356 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
357 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
358 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
359 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
360 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
88e1f1a2 JV |
361 | { PLUGEXPR, TOKENTYPE_OPVAL, "PLUGEXPR" }, |
362 | { PLUGSTMT, TOKENTYPE_OPVAL, "PLUGSTMT" }, | |
bbf60fe6 DM |
363 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, |
364 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
365 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
366 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
367 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
368 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
369 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
370 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
371 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
372 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
373 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
374 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
375 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
376 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
377 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
378 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
379 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
380 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 381 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
382 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
383 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
be25f609 | 384 | { YADAYADA, TOKENTYPE_IVAL, "YADAYADA" }, |
c35e046a | 385 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
386 | }; |
387 | ||
6154021b | 388 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 389 | |
bbf60fe6 | 390 | STATIC int |
704d4215 | 391 | S_tokereport(pTHX_ I32 rv, const YYSTYPE* lvalp) |
bbf60fe6 | 392 | { |
97aff369 | 393 | dVAR; |
7918f24d NC |
394 | |
395 | PERL_ARGS_ASSERT_TOKEREPORT; | |
396 | ||
bbf60fe6 | 397 | if (DEBUG_T_TEST) { |
bd61b366 | 398 | const char *name = NULL; |
bbf60fe6 | 399 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 400 | const struct debug_tokens *p; |
396482e1 | 401 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 402 | |
f54cb97a | 403 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
404 | if (p->token == (int)rv) { |
405 | name = p->name; | |
406 | type = p->type; | |
407 | break; | |
408 | } | |
409 | } | |
410 | if (name) | |
54667de8 | 411 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
412 | else if ((char)rv > ' ' && (char)rv < '~') |
413 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
414 | else if (!rv) | |
396482e1 | 415 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
416 | else |
417 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
418 | switch (type) { | |
419 | case TOKENTYPE_NONE: | |
420 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
421 | break; | |
422 | case TOKENTYPE_IVAL: | |
704d4215 | 423 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)lvalp->ival); |
bbf60fe6 DM |
424 | break; |
425 | case TOKENTYPE_OPNUM: | |
426 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
704d4215 | 427 | PL_op_name[lvalp->ival]); |
bbf60fe6 DM |
428 | break; |
429 | case TOKENTYPE_PVAL: | |
704d4215 | 430 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", lvalp->pval); |
bbf60fe6 DM |
431 | break; |
432 | case TOKENTYPE_OPVAL: | |
704d4215 | 433 | if (lvalp->opval) { |
401441c0 | 434 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
704d4215 GG |
435 | PL_op_name[lvalp->opval->op_type]); |
436 | if (lvalp->opval->op_type == OP_CONST) { | |
b6007c36 | 437 | Perl_sv_catpvf(aTHX_ report, " %s", |
704d4215 | 438 | SvPEEK(cSVOPx_sv(lvalp->opval))); |
b6007c36 DM |
439 | } |
440 | ||
441 | } | |
401441c0 | 442 | else |
396482e1 | 443 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
444 | break; |
445 | } | |
b6007c36 | 446 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
447 | }; |
448 | return (int)rv; | |
998054bd SC |
449 | } |
450 | ||
b6007c36 DM |
451 | |
452 | /* print the buffer with suitable escapes */ | |
453 | ||
454 | STATIC void | |
15f169a1 | 455 | S_printbuf(pTHX_ const char *const fmt, const char *const s) |
b6007c36 | 456 | { |
396482e1 | 457 | SV* const tmp = newSVpvs(""); |
7918f24d NC |
458 | |
459 | PERL_ARGS_ASSERT_PRINTBUF; | |
460 | ||
b6007c36 DM |
461 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
462 | SvREFCNT_dec(tmp); | |
463 | } | |
464 | ||
8fa7f367 JH |
465 | #endif |
466 | ||
8290c323 NC |
467 | static int |
468 | S_deprecate_commaless_var_list(pTHX) { | |
469 | PL_expect = XTERM; | |
470 | deprecate("comma-less variable list"); | |
471 | return REPORT(','); /* grandfather non-comma-format format */ | |
472 | } | |
473 | ||
ffb4593c NT |
474 | /* |
475 | * S_ao | |
476 | * | |
c963b151 BD |
477 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
478 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
479 | */ |
480 | ||
76e3520e | 481 | STATIC int |
cea2e8a9 | 482 | S_ao(pTHX_ int toketype) |
a0d0e21e | 483 | { |
97aff369 | 484 | dVAR; |
3280af22 NIS |
485 | if (*PL_bufptr == '=') { |
486 | PL_bufptr++; | |
a0d0e21e | 487 | if (toketype == ANDAND) |
6154021b | 488 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 489 | else if (toketype == OROR) |
6154021b | 490 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 491 | else if (toketype == DORDOR) |
6154021b | 492 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
493 | toketype = ASSIGNOP; |
494 | } | |
495 | return toketype; | |
496 | } | |
497 | ||
ffb4593c NT |
498 | /* |
499 | * S_no_op | |
500 | * When Perl expects an operator and finds something else, no_op | |
501 | * prints the warning. It always prints "<something> found where | |
502 | * operator expected. It prints "Missing semicolon on previous line?" | |
503 | * if the surprise occurs at the start of the line. "do you need to | |
504 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
505 | * where the compiler doesn't know if foo is a method call or a function. | |
506 | * It prints "Missing operator before end of line" if there's nothing | |
507 | * after the missing operator, or "... before <...>" if there is something | |
508 | * after the missing operator. | |
509 | */ | |
510 | ||
76e3520e | 511 | STATIC void |
15f169a1 | 512 | S_no_op(pTHX_ const char *const what, char *s) |
463ee0b2 | 513 | { |
97aff369 | 514 | dVAR; |
9d4ba2ae AL |
515 | char * const oldbp = PL_bufptr; |
516 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 517 | |
7918f24d NC |
518 | PERL_ARGS_ASSERT_NO_OP; |
519 | ||
1189a94a GS |
520 | if (!s) |
521 | s = oldbp; | |
07c798fb | 522 | else |
1189a94a | 523 | PL_bufptr = s; |
cea2e8a9 | 524 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
525 | if (ckWARN_d(WARN_SYNTAX)) { |
526 | if (is_first) | |
527 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
528 | "\t(Missing semicolon on previous line?)\n"); | |
529 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 530 | const char *t; |
c35e046a AL |
531 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
532 | NOOP; | |
56da5a46 RGS |
533 | if (t < PL_bufptr && isSPACE(*t)) |
534 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
535 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 536 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
537 | } |
538 | else { | |
539 | assert(s >= oldbp); | |
540 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 541 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 542 | } |
07c798fb | 543 | } |
3280af22 | 544 | PL_bufptr = oldbp; |
8990e307 LW |
545 | } |
546 | ||
ffb4593c NT |
547 | /* |
548 | * S_missingterm | |
549 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 550 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
551 | * If we're in a delimited string and the delimiter is a control |
552 | * character, it's reformatted into a two-char sequence like ^C. | |
553 | * This is fatal. | |
554 | */ | |
555 | ||
76e3520e | 556 | STATIC void |
cea2e8a9 | 557 | S_missingterm(pTHX_ char *s) |
8990e307 | 558 | { |
97aff369 | 559 | dVAR; |
8990e307 LW |
560 | char tmpbuf[3]; |
561 | char q; | |
562 | if (s) { | |
9d4ba2ae | 563 | char * const nl = strrchr(s,'\n'); |
d2719217 | 564 | if (nl) |
8990e307 LW |
565 | *nl = '\0'; |
566 | } | |
463559e7 | 567 | else if (isCNTRL(PL_multi_close)) { |
8990e307 | 568 | *tmpbuf = '^'; |
585ec06d | 569 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
570 | tmpbuf[2] = '\0'; |
571 | s = tmpbuf; | |
572 | } | |
573 | else { | |
eb160463 | 574 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
575 | tmpbuf[1] = '\0'; |
576 | s = tmpbuf; | |
577 | } | |
578 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 579 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 580 | } |
79072805 | 581 | |
ef89dcc3 | 582 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 583 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 584 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b | 585 | /* The longest string we pass in. */ |
1863b879 | 586 | #define MAX_FEATURE_LEN (sizeof("unicode_strings")-1) |
4a731d7b | 587 | |
0d863452 RH |
588 | /* |
589 | * S_feature_is_enabled | |
590 | * Check whether the named feature is enabled. | |
591 | */ | |
592 | STATIC bool | |
15f169a1 | 593 | S_feature_is_enabled(pTHX_ const char *const name, STRLEN namelen) |
0d863452 | 594 | { |
97aff369 | 595 | dVAR; |
0d863452 | 596 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b | 597 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
7918f24d NC |
598 | |
599 | PERL_ARGS_ASSERT_FEATURE_IS_ENABLED; | |
600 | ||
4a731d7b NC |
601 | assert(namelen <= MAX_FEATURE_LEN); |
602 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 603 | |
7b9ef140 | 604 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
605 | } |
606 | ||
ffb4593c | 607 | /* |
9cbb5ea2 GS |
608 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
609 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
610 | */ |
611 | ||
c39cd008 GS |
612 | #ifdef PERL_CR_FILTER |
613 | static void | |
614 | strip_return(SV *sv) | |
615 | { | |
95a20fc0 | 616 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 617 | register const char * const e = s + SvCUR(sv); |
7918f24d NC |
618 | |
619 | PERL_ARGS_ASSERT_STRIP_RETURN; | |
620 | ||
c39cd008 GS |
621 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
622 | while (s < e) { | |
623 | if (*s++ == '\r' && *s == '\n') { | |
624 | /* hit a CR-LF, need to copy the rest */ | |
625 | register char *d = s - 1; | |
626 | *d++ = *s++; | |
627 | while (s < e) { | |
628 | if (*s == '\r' && s[1] == '\n') | |
629 | s++; | |
630 | *d++ = *s++; | |
631 | } | |
632 | SvCUR(sv) -= s - d; | |
633 | return; | |
634 | } | |
635 | } | |
636 | } | |
a868473f | 637 | |
76e3520e | 638 | STATIC I32 |
c39cd008 | 639 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 640 | { |
f54cb97a | 641 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
642 | if (count > 0 && !maxlen) |
643 | strip_return(sv); | |
644 | return count; | |
a868473f NIS |
645 | } |
646 | #endif | |
647 | ||
199e78b7 DM |
648 | |
649 | ||
ffb4593c NT |
650 | /* |
651 | * Perl_lex_start | |
5486870f | 652 | * |
e3abe207 | 653 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
654 | * |
655 | * rsfp is the opened file handle to read from (if any), | |
656 | * | |
657 | * line holds any initial content already read from the file (or in | |
658 | * the case of no file, such as an eval, the whole contents); | |
659 | * | |
660 | * new_filter indicates that this is a new file and it shouldn't inherit | |
661 | * the filters from the current parser (ie require). | |
ffb4593c NT |
662 | */ |
663 | ||
a0d0e21e | 664 | void |
5486870f | 665 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 666 | { |
97aff369 | 667 | dVAR; |
6ef55633 | 668 | const char *s = NULL; |
8990e307 | 669 | STRLEN len; |
5486870f | 670 | yy_parser *parser, *oparser; |
acdf0a21 DM |
671 | |
672 | /* create and initialise a parser */ | |
673 | ||
199e78b7 | 674 | Newxz(parser, 1, yy_parser); |
5486870f | 675 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
676 | PL_parser = parser; |
677 | ||
678 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
679 | parser->ps = parser->stack; | |
680 | parser->stack_size = YYINITDEPTH; | |
681 | ||
682 | parser->stack->state = 0; | |
683 | parser->yyerrstatus = 0; | |
684 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
685 | ||
e3abe207 DM |
686 | /* on scope exit, free this parser and restore any outer one */ |
687 | SAVEPARSER(parser); | |
7c4baf47 | 688 | parser->saved_curcop = PL_curcop; |
e3abe207 | 689 | |
acdf0a21 | 690 | /* initialise lexer state */ |
8990e307 | 691 | |
fb205e7a DM |
692 | #ifdef PERL_MAD |
693 | parser->curforce = -1; | |
694 | #else | |
695 | parser->nexttoke = 0; | |
696 | #endif | |
ca4cfd28 | 697 | parser->error_count = oparser ? oparser->error_count : 0; |
c2598295 | 698 | parser->copline = NOLINE; |
5afb0a62 | 699 | parser->lex_state = LEX_NORMAL; |
c2598295 | 700 | parser->expect = XSTATE; |
2f9285f8 | 701 | parser->rsfp = rsfp; |
56b27c9a | 702 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
502c6561 | 703 | : MUTABLE_AV(SvREFCNT_inc(oparser->rsfp_filters)); |
2f9285f8 | 704 | |
199e78b7 DM |
705 | Newx(parser->lex_brackstack, 120, char); |
706 | Newx(parser->lex_casestack, 12, char); | |
707 | *parser->lex_casestack = '\0'; | |
02b34bbe | 708 | |
10efb74f NC |
709 | if (line) { |
710 | s = SvPV_const(line, len); | |
711 | } else { | |
712 | len = 0; | |
713 | } | |
bdc0bf6f | 714 | |
10efb74f | 715 | if (!len) { |
bdc0bf6f | 716 | parser->linestr = newSVpvs("\n;"); |
10efb74f | 717 | } else if (SvREADONLY(line) || s[len-1] != ';') { |
bdc0bf6f | 718 | parser->linestr = newSVsv(line); |
10efb74f | 719 | if (s[len-1] != ';') |
bdc0bf6f | 720 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
721 | } else { |
722 | SvTEMP_off(line); | |
723 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 724 | parser->linestr = line; |
8990e307 | 725 | } |
f06b5848 DM |
726 | parser->oldoldbufptr = |
727 | parser->oldbufptr = | |
728 | parser->bufptr = | |
729 | parser->linestart = SvPVX(parser->linestr); | |
730 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
731 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 732 | } |
a687059c | 733 | |
e3abe207 DM |
734 | |
735 | /* delete a parser object */ | |
736 | ||
737 | void | |
738 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
739 | { | |
7918f24d NC |
740 | PERL_ARGS_ASSERT_PARSER_FREE; |
741 | ||
7c4baf47 | 742 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
743 | SvREFCNT_dec(parser->linestr); |
744 | ||
2f9285f8 DM |
745 | if (parser->rsfp == PerlIO_stdin()) |
746 | PerlIO_clearerr(parser->rsfp); | |
799361c3 SH |
747 | else if (parser->rsfp && (!parser->old_parser || |
748 | (parser->old_parser && parser->rsfp != parser->old_parser->rsfp))) | |
2f9285f8 | 749 | PerlIO_close(parser->rsfp); |
5486870f | 750 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 751 | |
e3abe207 DM |
752 | Safefree(parser->stack); |
753 | Safefree(parser->lex_brackstack); | |
754 | Safefree(parser->lex_casestack); | |
755 | PL_parser = parser->old_parser; | |
756 | Safefree(parser); | |
757 | } | |
758 | ||
759 | ||
ffb4593c NT |
760 | /* |
761 | * Perl_lex_end | |
9cbb5ea2 GS |
762 | * Finalizer for lexing operations. Must be called when the parser is |
763 | * done with the lexer. | |
ffb4593c NT |
764 | */ |
765 | ||
463ee0b2 | 766 | void |
864dbfa3 | 767 | Perl_lex_end(pTHX) |
463ee0b2 | 768 | { |
97aff369 | 769 | dVAR; |
3280af22 | 770 | PL_doextract = FALSE; |
463ee0b2 LW |
771 | } |
772 | ||
ffb4593c | 773 | /* |
f0e67a1d Z |
774 | =for apidoc AmxU|SV *|PL_parser-E<gt>linestr |
775 | ||
776 | Buffer scalar containing the chunk currently under consideration of the | |
777 | text currently being lexed. This is always a plain string scalar (for | |
778 | which C<SvPOK> is true). It is not intended to be used as a scalar by | |
779 | normal scalar means; instead refer to the buffer directly by the pointer | |
780 | variables described below. | |
781 | ||
782 | The lexer maintains various C<char*> pointers to things in the | |
783 | C<PL_parser-E<gt>linestr> buffer. If C<PL_parser-E<gt>linestr> is ever | |
784 | reallocated, all of these pointers must be updated. Don't attempt to | |
785 | do this manually, but rather use L</lex_grow_linestr> if you need to | |
786 | reallocate the buffer. | |
787 | ||
788 | The content of the text chunk in the buffer is commonly exactly one | |
789 | complete line of input, up to and including a newline terminator, | |
790 | but there are situations where it is otherwise. The octets of the | |
791 | buffer may be intended to be interpreted as either UTF-8 or Latin-1. | |
792 | The function L</lex_bufutf8> tells you which. Do not use the C<SvUTF8> | |
793 | flag on this scalar, which may disagree with it. | |
794 | ||
795 | For direct examination of the buffer, the variable | |
796 | L</PL_parser-E<gt>bufend> points to the end of the buffer. The current | |
797 | lexing position is pointed to by L</PL_parser-E<gt>bufptr>. Direct use | |
798 | of these pointers is usually preferable to examination of the scalar | |
799 | through normal scalar means. | |
800 | ||
801 | =for apidoc AmxU|char *|PL_parser-E<gt>bufend | |
802 | ||
803 | Direct pointer to the end of the chunk of text currently being lexed, the | |
804 | end of the lexer buffer. This is equal to C<SvPVX(PL_parser-E<gt>linestr) | |
805 | + SvCUR(PL_parser-E<gt>linestr)>. A NUL character (zero octet) is | |
806 | always located at the end of the buffer, and does not count as part of | |
807 | the buffer's contents. | |
808 | ||
809 | =for apidoc AmxU|char *|PL_parser-E<gt>bufptr | |
810 | ||
811 | Points to the current position of lexing inside the lexer buffer. | |
812 | Characters around this point may be freely examined, within | |
813 | the range delimited by C<SvPVX(L</PL_parser-E<gt>linestr>)> and | |
814 | L</PL_parser-E<gt>bufend>. The octets of the buffer may be intended to be | |
815 | interpreted as either UTF-8 or Latin-1, as indicated by L</lex_bufutf8>. | |
816 | ||
817 | Lexing code (whether in the Perl core or not) moves this pointer past | |
818 | the characters that it consumes. It is also expected to perform some | |
819 | bookkeeping whenever a newline character is consumed. This movement | |
820 | can be more conveniently performed by the function L</lex_read_to>, | |
821 | which handles newlines appropriately. | |
822 | ||
823 | Interpretation of the buffer's octets can be abstracted out by | |
824 | using the slightly higher-level functions L</lex_peek_unichar> and | |
825 | L</lex_read_unichar>. | |
826 | ||
827 | =for apidoc AmxU|char *|PL_parser-E<gt>linestart | |
828 | ||
829 | Points to the start of the current line inside the lexer buffer. | |
830 | This is useful for indicating at which column an error occurred, and | |
831 | not much else. This must be updated by any lexing code that consumes | |
832 | a newline; the function L</lex_read_to> handles this detail. | |
833 | ||
834 | =cut | |
835 | */ | |
836 | ||
837 | /* | |
838 | =for apidoc Amx|bool|lex_bufutf8 | |
839 | ||
840 | Indicates whether the octets in the lexer buffer | |
841 | (L</PL_parser-E<gt>linestr>) should be interpreted as the UTF-8 encoding | |
842 | of Unicode characters. If not, they should be interpreted as Latin-1 | |
843 | characters. This is analogous to the C<SvUTF8> flag for scalars. | |
844 | ||
845 | In UTF-8 mode, it is not guaranteed that the lexer buffer actually | |
846 | contains valid UTF-8. Lexing code must be robust in the face of invalid | |
847 | encoding. | |
848 | ||
849 | The actual C<SvUTF8> flag of the L</PL_parser-E<gt>linestr> scalar | |
850 | is significant, but not the whole story regarding the input character | |
851 | encoding. Normally, when a file is being read, the scalar contains octets | |
852 | and its C<SvUTF8> flag is off, but the octets should be interpreted as | |
853 | UTF-8 if the C<use utf8> pragma is in effect. During a string eval, | |
854 | however, the scalar may have the C<SvUTF8> flag on, and in this case its | |
855 | octets should be interpreted as UTF-8 unless the C<use bytes> pragma | |
856 | is in effect. This logic may change in the future; use this function | |
857 | instead of implementing the logic yourself. | |
858 | ||
859 | =cut | |
860 | */ | |
861 | ||
862 | bool | |
863 | Perl_lex_bufutf8(pTHX) | |
864 | { | |
865 | return UTF; | |
866 | } | |
867 | ||
868 | /* | |
869 | =for apidoc Amx|char *|lex_grow_linestr|STRLEN len | |
870 | ||
871 | Reallocates the lexer buffer (L</PL_parser-E<gt>linestr>) to accommodate | |
872 | at least I<len> octets (including terminating NUL). Returns a | |
873 | pointer to the reallocated buffer. This is necessary before making | |
874 | any direct modification of the buffer that would increase its length. | |
875 | L</lex_stuff_pvn> provides a more convenient way to insert text into | |
876 | the buffer. | |
877 | ||
878 | Do not use C<SvGROW> or C<sv_grow> directly on C<PL_parser-E<gt>linestr>; | |
879 | this function updates all of the lexer's variables that point directly | |
880 | into the buffer. | |
881 | ||
882 | =cut | |
883 | */ | |
884 | ||
885 | char * | |
886 | Perl_lex_grow_linestr(pTHX_ STRLEN len) | |
887 | { | |
888 | SV *linestr; | |
889 | char *buf; | |
890 | STRLEN bufend_pos, bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
891 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
892 | linestr = PL_parser->linestr; | |
893 | buf = SvPVX(linestr); | |
894 | if (len <= SvLEN(linestr)) | |
895 | return buf; | |
896 | bufend_pos = PL_parser->bufend - buf; | |
897 | bufptr_pos = PL_parser->bufptr - buf; | |
898 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
899 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
900 | linestart_pos = PL_parser->linestart - buf; | |
901 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
902 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
903 | buf = sv_grow(linestr, len); | |
904 | PL_parser->bufend = buf + bufend_pos; | |
905 | PL_parser->bufptr = buf + bufptr_pos; | |
906 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
907 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
908 | PL_parser->linestart = buf + linestart_pos; | |
909 | if (PL_parser->last_uni) | |
910 | PL_parser->last_uni = buf + last_uni_pos; | |
911 | if (PL_parser->last_lop) | |
912 | PL_parser->last_lop = buf + last_lop_pos; | |
913 | return buf; | |
914 | } | |
915 | ||
916 | /* | |
917 | =for apidoc Amx|void|lex_stuff_pvn|char *pv|STRLEN len|U32 flags | |
918 | ||
919 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
920 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
921 | reallocating the buffer if necessary. This means that lexing code that | |
922 | runs later will see the characters as if they had appeared in the input. | |
923 | It is not recommended to do this as part of normal parsing, and most | |
924 | uses of this facility run the risk of the inserted characters being | |
925 | interpreted in an unintended manner. | |
926 | ||
927 | The string to be inserted is represented by I<len> octets starting | |
928 | at I<pv>. These octets are interpreted as either UTF-8 or Latin-1, | |
929 | according to whether the C<LEX_STUFF_UTF8> flag is set in I<flags>. | |
930 | The characters are recoded for the lexer buffer, according to how the | |
931 | buffer is currently being interpreted (L</lex_bufutf8>). If a string | |
932 | to be interpreted is available as a Perl scalar, the L</lex_stuff_sv> | |
933 | function is more convenient. | |
934 | ||
935 | =cut | |
936 | */ | |
937 | ||
938 | void | |
939 | Perl_lex_stuff_pvn(pTHX_ char *pv, STRLEN len, U32 flags) | |
940 | { | |
941 | char *bufptr; | |
942 | PERL_ARGS_ASSERT_LEX_STUFF_PVN; | |
943 | if (flags & ~(LEX_STUFF_UTF8)) | |
944 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_pvn"); | |
945 | if (UTF) { | |
946 | if (flags & LEX_STUFF_UTF8) { | |
947 | goto plain_copy; | |
948 | } else { | |
949 | STRLEN highhalf = 0; | |
950 | char *p, *e = pv+len; | |
951 | for (p = pv; p != e; p++) | |
952 | highhalf += !!(((U8)*p) & 0x80); | |
953 | if (!highhalf) | |
954 | goto plain_copy; | |
955 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len+highhalf); | |
956 | bufptr = PL_parser->bufptr; | |
957 | Move(bufptr, bufptr+len+highhalf, PL_parser->bufend+1-bufptr, char); | |
958 | PL_parser->bufend += len+highhalf; | |
959 | for (p = pv; p != e; p++) { | |
960 | U8 c = (U8)*p; | |
961 | if (c & 0x80) { | |
962 | *bufptr++ = (char)(0xc0 | (c >> 6)); | |
963 | *bufptr++ = (char)(0x80 | (c & 0x3f)); | |
964 | } else { | |
965 | *bufptr++ = (char)c; | |
966 | } | |
967 | } | |
968 | } | |
969 | } else { | |
970 | if (flags & LEX_STUFF_UTF8) { | |
971 | STRLEN highhalf = 0; | |
972 | char *p, *e = pv+len; | |
973 | for (p = pv; p != e; p++) { | |
974 | U8 c = (U8)*p; | |
975 | if (c >= 0xc4) { | |
976 | Perl_croak(aTHX_ "Lexing code attempted to stuff " | |
977 | "non-Latin-1 character into Latin-1 input"); | |
978 | } else if (c >= 0xc2 && p+1 != e && | |
979 | (((U8)p[1]) & 0xc0) == 0x80) { | |
980 | p++; | |
981 | highhalf++; | |
982 | } else if (c >= 0x80) { | |
983 | /* malformed UTF-8 */ | |
984 | ENTER; | |
985 | SAVESPTR(PL_warnhook); | |
986 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
987 | utf8n_to_uvuni((U8*)p, e-p, NULL, 0); | |
988 | LEAVE; | |
989 | } | |
990 | } | |
991 | if (!highhalf) | |
992 | goto plain_copy; | |
993 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len-highhalf); | |
994 | bufptr = PL_parser->bufptr; | |
995 | Move(bufptr, bufptr+len-highhalf, PL_parser->bufend+1-bufptr, char); | |
996 | PL_parser->bufend += len-highhalf; | |
997 | for (p = pv; p != e; p++) { | |
998 | U8 c = (U8)*p; | |
999 | if (c & 0x80) { | |
1000 | *bufptr++ = (char)(((c & 0x3) << 6) | (p[1] & 0x3f)); | |
1001 | p++; | |
1002 | } else { | |
1003 | *bufptr++ = (char)c; | |
1004 | } | |
1005 | } | |
1006 | } else { | |
1007 | plain_copy: | |
1008 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len); | |
1009 | bufptr = PL_parser->bufptr; | |
1010 | Move(bufptr, bufptr+len, PL_parser->bufend+1-bufptr, char); | |
1011 | PL_parser->bufend += len; | |
1012 | Copy(pv, bufptr, len, char); | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | =for apidoc Amx|void|lex_stuff_sv|SV *sv|U32 flags | |
1019 | ||
1020 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
1021 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
1022 | reallocating the buffer if necessary. This means that lexing code that | |
1023 | runs later will see the characters as if they had appeared in the input. | |
1024 | It is not recommended to do this as part of normal parsing, and most | |
1025 | uses of this facility run the risk of the inserted characters being | |
1026 | interpreted in an unintended manner. | |
1027 | ||
1028 | The string to be inserted is the string value of I<sv>. The characters | |
1029 | are recoded for the lexer buffer, according to how the buffer is currently | |
1030 | being interpreted (L</lex_bufutf8>). If a string to be interpreted is | |
1031 | not already a Perl scalar, the L</lex_stuff_pvn> function avoids the | |
1032 | need to construct a scalar. | |
1033 | ||
1034 | =cut | |
1035 | */ | |
1036 | ||
1037 | void | |
1038 | Perl_lex_stuff_sv(pTHX_ SV *sv, U32 flags) | |
1039 | { | |
1040 | char *pv; | |
1041 | STRLEN len; | |
1042 | PERL_ARGS_ASSERT_LEX_STUFF_SV; | |
1043 | if (flags) | |
1044 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_sv"); | |
1045 | pv = SvPV(sv, len); | |
1046 | lex_stuff_pvn(pv, len, flags | (SvUTF8(sv) ? LEX_STUFF_UTF8 : 0)); | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | =for apidoc Amx|void|lex_unstuff|char *ptr | |
1051 | ||
1052 | Discards text about to be lexed, from L</PL_parser-E<gt>bufptr> up to | |
1053 | I<ptr>. Text following I<ptr> will be moved, and the buffer shortened. | |
1054 | This hides the discarded text from any lexing code that runs later, | |
1055 | as if the text had never appeared. | |
1056 | ||
1057 | This is not the normal way to consume lexed text. For that, use | |
1058 | L</lex_read_to>. | |
1059 | ||
1060 | =cut | |
1061 | */ | |
1062 | ||
1063 | void | |
1064 | Perl_lex_unstuff(pTHX_ char *ptr) | |
1065 | { | |
1066 | char *buf, *bufend; | |
1067 | STRLEN unstuff_len; | |
1068 | PERL_ARGS_ASSERT_LEX_UNSTUFF; | |
1069 | buf = PL_parser->bufptr; | |
1070 | if (ptr < buf) | |
1071 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1072 | if (ptr == buf) | |
1073 | return; | |
1074 | bufend = PL_parser->bufend; | |
1075 | if (ptr > bufend) | |
1076 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1077 | unstuff_len = ptr - buf; | |
1078 | Move(ptr, buf, bufend+1-ptr, char); | |
1079 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - unstuff_len); | |
1080 | PL_parser->bufend = bufend - unstuff_len; | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | =for apidoc Amx|void|lex_read_to|char *ptr | |
1085 | ||
1086 | Consume text in the lexer buffer, from L</PL_parser-E<gt>bufptr> up | |
1087 | to I<ptr>. This advances L</PL_parser-E<gt>bufptr> to match I<ptr>, | |
1088 | performing the correct bookkeeping whenever a newline character is passed. | |
1089 | This is the normal way to consume lexed text. | |
1090 | ||
1091 | Interpretation of the buffer's octets can be abstracted out by | |
1092 | using the slightly higher-level functions L</lex_peek_unichar> and | |
1093 | L</lex_read_unichar>. | |
1094 | ||
1095 | =cut | |
1096 | */ | |
1097 | ||
1098 | void | |
1099 | Perl_lex_read_to(pTHX_ char *ptr) | |
1100 | { | |
1101 | char *s; | |
1102 | PERL_ARGS_ASSERT_LEX_READ_TO; | |
1103 | s = PL_parser->bufptr; | |
1104 | if (ptr < s || ptr > PL_parser->bufend) | |
1105 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_to"); | |
1106 | for (; s != ptr; s++) | |
1107 | if (*s == '\n') { | |
1108 | CopLINE_inc(PL_curcop); | |
1109 | PL_parser->linestart = s+1; | |
1110 | } | |
1111 | PL_parser->bufptr = ptr; | |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | =for apidoc Amx|void|lex_discard_to|char *ptr | |
1116 | ||
1117 | Discards the first part of the L</PL_parser-E<gt>linestr> buffer, | |
1118 | up to I<ptr>. The remaining content of the buffer will be moved, and | |
1119 | all pointers into the buffer updated appropriately. I<ptr> must not | |
1120 | be later in the buffer than the position of L</PL_parser-E<gt>bufptr>: | |
1121 | it is not permitted to discard text that has yet to be lexed. | |
1122 | ||
1123 | Normally it is not necessarily to do this directly, because it suffices to | |
1124 | use the implicit discarding behaviour of L</lex_next_chunk> and things | |
1125 | based on it. However, if a token stretches across multiple lines, | |
1126 | and the lexing code has kept multiple lines of text in the buffer fof | |
1127 | that purpose, then after completion of the token it would be wise to | |
1128 | explicitly discard the now-unneeded earlier lines, to avoid future | |
1129 | multi-line tokens growing the buffer without bound. | |
1130 | ||
1131 | =cut | |
1132 | */ | |
1133 | ||
1134 | void | |
1135 | Perl_lex_discard_to(pTHX_ char *ptr) | |
1136 | { | |
1137 | char *buf; | |
1138 | STRLEN discard_len; | |
1139 | PERL_ARGS_ASSERT_LEX_DISCARD_TO; | |
1140 | buf = SvPVX(PL_parser->linestr); | |
1141 | if (ptr < buf) | |
1142 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1143 | if (ptr == buf) | |
1144 | return; | |
1145 | if (ptr > PL_parser->bufptr) | |
1146 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1147 | discard_len = ptr - buf; | |
1148 | if (PL_parser->oldbufptr < ptr) | |
1149 | PL_parser->oldbufptr = ptr; | |
1150 | if (PL_parser->oldoldbufptr < ptr) | |
1151 | PL_parser->oldoldbufptr = ptr; | |
1152 | if (PL_parser->last_uni && PL_parser->last_uni < ptr) | |
1153 | PL_parser->last_uni = NULL; | |
1154 | if (PL_parser->last_lop && PL_parser->last_lop < ptr) | |
1155 | PL_parser->last_lop = NULL; | |
1156 | Move(ptr, buf, PL_parser->bufend+1-ptr, char); | |
1157 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - discard_len); | |
1158 | PL_parser->bufend -= discard_len; | |
1159 | PL_parser->bufptr -= discard_len; | |
1160 | PL_parser->oldbufptr -= discard_len; | |
1161 | PL_parser->oldoldbufptr -= discard_len; | |
1162 | if (PL_parser->last_uni) | |
1163 | PL_parser->last_uni -= discard_len; | |
1164 | if (PL_parser->last_lop) | |
1165 | PL_parser->last_lop -= discard_len; | |
1166 | } | |
1167 | ||
1168 | /* | |
1169 | =for apidoc Amx|bool|lex_next_chunk|U32 flags | |
1170 | ||
1171 | Reads in the next chunk of text to be lexed, appending it to | |
1172 | L</PL_parser-E<gt>linestr>. This should be called when lexing code has | |
1173 | looked to the end of the current chunk and wants to know more. It is | |
1174 | usual, but not necessary, for lexing to have consumed the entirety of | |
1175 | the current chunk at this time. | |
1176 | ||
1177 | If L</PL_parser-E<gt>bufptr> is pointing to the very end of the current | |
1178 | chunk (i.e., the current chunk has been entirely consumed), normally the | |
1179 | current chunk will be discarded at the same time that the new chunk is | |
1180 | read in. If I<flags> includes C<LEX_KEEP_PREVIOUS>, the current chunk | |
1181 | will not be discarded. If the current chunk has not been entirely | |
1182 | consumed, then it will not be discarded regardless of the flag. | |
1183 | ||
1184 | Returns true if some new text was added to the buffer, or false if the | |
1185 | buffer has reached the end of the input text. | |
1186 | ||
1187 | =cut | |
1188 | */ | |
1189 | ||
1190 | #define LEX_FAKE_EOF 0x80000000 | |
1191 | ||
1192 | bool | |
1193 | Perl_lex_next_chunk(pTHX_ U32 flags) | |
1194 | { | |
1195 | SV *linestr; | |
1196 | char *buf; | |
1197 | STRLEN old_bufend_pos, new_bufend_pos; | |
1198 | STRLEN bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
1199 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
17cc9359 | 1200 | bool got_some_for_debugger = 0; |
f0e67a1d Z |
1201 | bool got_some; |
1202 | if (flags & ~(LEX_KEEP_PREVIOUS|LEX_FAKE_EOF)) | |
1203 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_next_chunk"); | |
f0e67a1d Z |
1204 | linestr = PL_parser->linestr; |
1205 | buf = SvPVX(linestr); | |
1206 | if (!(flags & LEX_KEEP_PREVIOUS) && | |
1207 | PL_parser->bufptr == PL_parser->bufend) { | |
1208 | old_bufend_pos = bufptr_pos = oldbufptr_pos = oldoldbufptr_pos = 0; | |
1209 | linestart_pos = 0; | |
1210 | if (PL_parser->last_uni != PL_parser->bufend) | |
1211 | PL_parser->last_uni = NULL; | |
1212 | if (PL_parser->last_lop != PL_parser->bufend) | |
1213 | PL_parser->last_lop = NULL; | |
1214 | last_uni_pos = last_lop_pos = 0; | |
1215 | *buf = 0; | |
1216 | SvCUR(linestr) = 0; | |
1217 | } else { | |
1218 | old_bufend_pos = PL_parser->bufend - buf; | |
1219 | bufptr_pos = PL_parser->bufptr - buf; | |
1220 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
1221 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
1222 | linestart_pos = PL_parser->linestart - buf; | |
1223 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
1224 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
1225 | } | |
1226 | if (flags & LEX_FAKE_EOF) { | |
1227 | goto eof; | |
1228 | } else if (!PL_parser->rsfp) { | |
1229 | got_some = 0; | |
1230 | } else if (filter_gets(linestr, old_bufend_pos)) { | |
1231 | got_some = 1; | |
17cc9359 | 1232 | got_some_for_debugger = 1; |
f0e67a1d | 1233 | } else { |
580561a3 Z |
1234 | if (!SvPOK(linestr)) /* can get undefined by filter_gets */ |
1235 | sv_setpvs(linestr, ""); | |
f0e67a1d Z |
1236 | eof: |
1237 | /* End of real input. Close filehandle (unless it was STDIN), | |
1238 | * then add implicit termination. | |
1239 | */ | |
1240 | if ((PerlIO*)PL_parser->rsfp == PerlIO_stdin()) | |
1241 | PerlIO_clearerr(PL_parser->rsfp); | |
1242 | else if (PL_parser->rsfp) | |
1243 | (void)PerlIO_close(PL_parser->rsfp); | |
1244 | PL_parser->rsfp = NULL; | |
1245 | PL_doextract = FALSE; | |
1246 | #ifdef PERL_MAD | |
1247 | if (PL_madskills && !PL_in_eval && (PL_minus_p || PL_minus_n)) | |
1248 | PL_faketokens = 1; | |
1249 | #endif | |
1250 | if (!PL_in_eval && PL_minus_p) { | |
1251 | sv_catpvs(linestr, | |
1252 | /*{*/";}continue{print or die qq(-p destination: $!\\n);}"); | |
1253 | PL_minus_n = PL_minus_p = 0; | |
1254 | } else if (!PL_in_eval && PL_minus_n) { | |
1255 | sv_catpvs(linestr, /*{*/";}"); | |
1256 | PL_minus_n = 0; | |
1257 | } else | |
1258 | sv_catpvs(linestr, ";"); | |
1259 | got_some = 1; | |
1260 | } | |
1261 | buf = SvPVX(linestr); | |
1262 | new_bufend_pos = SvCUR(linestr); | |
1263 | PL_parser->bufend = buf + new_bufend_pos; | |
1264 | PL_parser->bufptr = buf + bufptr_pos; | |
1265 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
1266 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
1267 | PL_parser->linestart = buf + linestart_pos; | |
1268 | if (PL_parser->last_uni) | |
1269 | PL_parser->last_uni = buf + last_uni_pos; | |
1270 | if (PL_parser->last_lop) | |
1271 | PL_parser->last_lop = buf + last_lop_pos; | |
17cc9359 | 1272 | if (got_some_for_debugger && (PERLDB_LINE || PERLDB_SAVESRC) && |
f0e67a1d Z |
1273 | PL_curstash != PL_debstash) { |
1274 | /* debugger active and we're not compiling the debugger code, | |
1275 | * so store the line into the debugger's array of lines | |
1276 | */ | |
1277 | update_debugger_info(NULL, buf+old_bufend_pos, | |
1278 | new_bufend_pos-old_bufend_pos); | |
1279 | } | |
1280 | return got_some; | |
1281 | } | |
1282 | ||
1283 | /* | |
1284 | =for apidoc Amx|I32|lex_peek_unichar|U32 flags | |
1285 | ||
1286 | Looks ahead one (Unicode) character in the text currently being lexed. | |
1287 | Returns the codepoint (unsigned integer value) of the next character, | |
1288 | or -1 if lexing has reached the end of the input text. To consume the | |
1289 | peeked character, use L</lex_read_unichar>. | |
1290 | ||
1291 | If the next character is in (or extends into) the next chunk of input | |
1292 | text, the next chunk will be read in. Normally the current chunk will be | |
1293 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1294 | then the current chunk will not be discarded. | |
1295 | ||
1296 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1297 | is encountered, an exception is generated. | |
1298 | ||
1299 | =cut | |
1300 | */ | |
1301 | ||
1302 | I32 | |
1303 | Perl_lex_peek_unichar(pTHX_ U32 flags) | |
1304 | { | |
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 | ||
d0a148a6 | 1924 | STATIC SV * |
15f169a1 | 1925 | S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len) |
d0a148a6 | 1926 | { |
97aff369 | 1927 | dVAR; |
740cce10 | 1928 | SV * const sv = newSVpvn_utf8(start, len, |
eaf7a4d2 CS |
1929 | !IN_BYTES |
1930 | && UTF | |
1931 | && !is_ascii_string((const U8*)start, len) | |
740cce10 | 1932 | && is_utf8_string((const U8*)start, len)); |
d0a148a6 NC |
1933 | return sv; |
1934 | } | |
1935 | ||
ffb4593c NT |
1936 | /* |
1937 | * S_force_word | |
1938 | * When the lexer knows the next thing is a word (for instance, it has | |
1939 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1940 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1941 | * lookahead. | |
ffb4593c NT |
1942 | * |
1943 | * Arguments: | |
b1b65b59 | 1944 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1945 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1946 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1947 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1948 | * int allow_pack : if true, : characters will also be allowed (require, | |
1949 | * use, etc. do this) | |
9cbb5ea2 | 1950 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1951 | */ |
1952 | ||
76e3520e | 1953 | STATIC char * |
cea2e8a9 | 1954 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1955 | { |
97aff369 | 1956 | dVAR; |
463ee0b2 LW |
1957 | register char *s; |
1958 | STRLEN len; | |
4e553d73 | 1959 | |
7918f24d NC |
1960 | PERL_ARGS_ASSERT_FORCE_WORD; |
1961 | ||
29595ff2 | 1962 | start = SKIPSPACE1(start); |
463ee0b2 | 1963 | s = start; |
7e2040f0 | 1964 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1965 | (allow_pack && *s == ':') || |
15f0808c | 1966 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1967 | { |
3280af22 | 1968 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1969 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1970 | return start; |
cd81e915 | 1971 | start_force(PL_curforce); |
5db06880 NC |
1972 | if (PL_madskills) |
1973 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1974 | if (token == METHOD) { |
29595ff2 | 1975 | s = SKIPSPACE1(s); |
463ee0b2 | 1976 | if (*s == '(') |
3280af22 | 1977 | PL_expect = XTERM; |
463ee0b2 | 1978 | else { |
3280af22 | 1979 | PL_expect = XOPERATOR; |
463ee0b2 | 1980 | } |
79072805 | 1981 | } |
e74e6b3d | 1982 | if (PL_madskills) |
63575281 | 1983 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1984 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1985 | = (OP*)newSVOP(OP_CONST,0, |
1986 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1987 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1988 | force_next(token); |
1989 | } | |
1990 | return s; | |
1991 | } | |
1992 | ||
ffb4593c NT |
1993 | /* |
1994 | * S_force_ident | |
9cbb5ea2 | 1995 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1996 | * text only contains the "foo" portion. The first argument is a pointer |
1997 | * to the "foo", and the second argument is the type symbol to prefix. | |
1998 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1999 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
2000 | */ |
2001 | ||
76e3520e | 2002 | STATIC void |
bfed75c6 | 2003 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 2004 | { |
97aff369 | 2005 | dVAR; |
7918f24d NC |
2006 | |
2007 | PERL_ARGS_ASSERT_FORCE_IDENT; | |
2008 | ||
c35e046a | 2009 | if (*s) { |
90e5519e NC |
2010 | const STRLEN len = strlen(s); |
2011 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 2012 | start_force(PL_curforce); |
9ded7720 | 2013 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 2014 | force_next(WORD); |
748a9306 | 2015 | if (kind) { |
11343788 | 2016 | o->op_private = OPpCONST_ENTERED; |
55497cff | 2017 | /* XXX see note in pp_entereval() for why we forgo typo |
2018 | warnings if the symbol must be introduced in an eval. | |
2019 | GSAR 96-10-12 */ | |
90e5519e NC |
2020 | gv_fetchpvn_flags(s, len, |
2021 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
2022 | : GV_ADD, | |
2023 | kind == '$' ? SVt_PV : | |
2024 | kind == '@' ? SVt_PVAV : | |
2025 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 2026 | SVt_PVGV |
90e5519e | 2027 | ); |
748a9306 | 2028 | } |
79072805 LW |
2029 | } |
2030 | } | |
2031 | ||
1571675a GS |
2032 | NV |
2033 | Perl_str_to_version(pTHX_ SV *sv) | |
2034 | { | |
2035 | NV retval = 0.0; | |
2036 | NV nshift = 1.0; | |
2037 | STRLEN len; | |
cfd0369c | 2038 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 2039 | const char * const end = start + len; |
504618e9 | 2040 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
7918f24d NC |
2041 | |
2042 | PERL_ARGS_ASSERT_STR_TO_VERSION; | |
2043 | ||
1571675a | 2044 | while (start < end) { |
ba210ebe | 2045 | STRLEN skip; |
1571675a GS |
2046 | UV n; |
2047 | if (utf) | |
9041c2e3 | 2048 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
2049 | else { |
2050 | n = *(U8*)start; | |
2051 | skip = 1; | |
2052 | } | |
2053 | retval += ((NV)n)/nshift; | |
2054 | start += skip; | |
2055 | nshift *= 1000; | |
2056 | } | |
2057 | return retval; | |
2058 | } | |
2059 | ||
4e553d73 | 2060 | /* |
ffb4593c NT |
2061 | * S_force_version |
2062 | * Forces the next token to be a version number. | |
e759cc13 RGS |
2063 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
2064 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
2065 | * must use an alternative parsing method). | |
ffb4593c NT |
2066 | */ |
2067 | ||
76e3520e | 2068 | STATIC char * |
e759cc13 | 2069 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 2070 | { |
97aff369 | 2071 | dVAR; |
5f66b61c | 2072 | OP *version = NULL; |
44dcb63b | 2073 | char *d; |
5db06880 NC |
2074 | #ifdef PERL_MAD |
2075 | I32 startoff = s - SvPVX(PL_linestr); | |
2076 | #endif | |
89bfa8cd | 2077 | |
7918f24d NC |
2078 | PERL_ARGS_ASSERT_FORCE_VERSION; |
2079 | ||
29595ff2 | 2080 | s = SKIPSPACE1(s); |
89bfa8cd | 2081 | |
44dcb63b | 2082 | d = s; |
dd629d5b | 2083 | if (*d == 'v') |
44dcb63b | 2084 | d++; |
44dcb63b | 2085 | if (isDIGIT(*d)) { |
e759cc13 RGS |
2086 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
2087 | d++; | |
5db06880 NC |
2088 | #ifdef PERL_MAD |
2089 | if (PL_madskills) { | |
cd81e915 | 2090 | start_force(PL_curforce); |
5db06880 NC |
2091 | curmad('X', newSVpvn(s,d-s)); |
2092 | } | |
2093 | #endif | |
9f3d182e | 2094 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 2095 | SV *ver; |
8d08d9ba DG |
2096 | #ifdef USE_LOCALE_NUMERIC |
2097 | char *loc = setlocale(LC_NUMERIC, "C"); | |
2098 | #endif | |
6154021b | 2099 | s = scan_num(s, &pl_yylval); |
8d08d9ba DG |
2100 | #ifdef USE_LOCALE_NUMERIC |
2101 | setlocale(LC_NUMERIC, loc); | |
2102 | #endif | |
6154021b | 2103 | version = pl_yylval.opval; |
dd629d5b GS |
2104 | ver = cSVOPx(version)->op_sv; |
2105 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 2106 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 2107 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 2108 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 2109 | } |
89bfa8cd | 2110 | } |
5db06880 NC |
2111 | else if (guessing) { |
2112 | #ifdef PERL_MAD | |
2113 | if (PL_madskills) { | |
cd81e915 NC |
2114 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2115 | PL_nextwhite = 0; | |
5db06880 NC |
2116 | s = SvPVX(PL_linestr) + startoff; |
2117 | } | |
2118 | #endif | |
e759cc13 | 2119 | return s; |
5db06880 | 2120 | } |
89bfa8cd | 2121 | } |
2122 | ||
5db06880 NC |
2123 | #ifdef PERL_MAD |
2124 | if (PL_madskills && !version) { | |
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 | |
89bfa8cd | 2130 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 2131 | start_force(PL_curforce); |
9ded7720 | 2132 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 2133 | force_next(WORD); |
89bfa8cd | 2134 | |
e759cc13 | 2135 | return s; |
89bfa8cd | 2136 | } |
2137 | ||
ffb4593c | 2138 | /* |
91152fc1 DG |
2139 | * S_force_strict_version |
2140 | * Forces the next token to be a version number using strict syntax rules. | |
2141 | */ | |
2142 | ||
2143 | STATIC char * | |
2144 | S_force_strict_version(pTHX_ char *s) | |
2145 | { | |
2146 | dVAR; | |
2147 | OP *version = NULL; | |
2148 | #ifdef PERL_MAD | |
2149 | I32 startoff = s - SvPVX(PL_linestr); | |
2150 | #endif | |
2151 | const char *errstr = NULL; | |
2152 | ||
2153 | PERL_ARGS_ASSERT_FORCE_STRICT_VERSION; | |
2154 | ||
2155 | while (isSPACE(*s)) /* leading whitespace */ | |
2156 | s++; | |
2157 | ||
2158 | if (is_STRICT_VERSION(s,&errstr)) { | |
2159 | SV *ver = newSV(0); | |
2160 | s = (char *)scan_version(s, ver, 0); | |
2161 | version = newSVOP(OP_CONST, 0, ver); | |
2162 | } | |
2163 | else if ( (*s != ';' && *s != '}' ) && (s = SKIPSPACE1(s), (*s != ';' && *s !='}' ))) { | |
2164 | PL_bufptr = s; | |
2165 | if (errstr) | |
2166 | yyerror(errstr); /* version required */ | |
2167 | return s; | |
2168 | } | |
2169 | ||
2170 | #ifdef PERL_MAD | |
2171 | if (PL_madskills && !version) { | |
2172 | sv_free(PL_nextwhite); /* let next token collect whitespace */ | |
2173 | PL_nextwhite = 0; | |
2174 | s = SvPVX(PL_linestr) + startoff; | |
2175 | } | |
2176 | #endif | |
2177 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
2178 | start_force(PL_curforce); | |
2179 | NEXTVAL_NEXTTOKE.opval = version; | |
2180 | force_next(WORD); | |
2181 | ||
2182 | return s; | |
2183 | } | |
2184 | ||
2185 | /* | |
ffb4593c NT |
2186 | * S_tokeq |
2187 | * Tokenize a quoted string passed in as an SV. It finds the next | |
2188 | * chunk, up to end of string or a backslash. It may make a new | |
2189 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
2190 | * turns \\ into \. | |
2191 | */ | |
2192 | ||
76e3520e | 2193 | STATIC SV * |
cea2e8a9 | 2194 | S_tokeq(pTHX_ SV *sv) |
79072805 | 2195 | { |
97aff369 | 2196 | dVAR; |
79072805 LW |
2197 | register char *s; |
2198 | register char *send; | |
2199 | register char *d; | |
b3ac6de7 IZ |
2200 | STRLEN len = 0; |
2201 | SV *pv = sv; | |
79072805 | 2202 | |
7918f24d NC |
2203 | PERL_ARGS_ASSERT_TOKEQ; |
2204 | ||
79072805 | 2205 | if (!SvLEN(sv)) |
b3ac6de7 | 2206 | goto finish; |
79072805 | 2207 | |
a0d0e21e | 2208 | s = SvPV_force(sv, len); |
21a311ee | 2209 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 2210 | goto finish; |
463ee0b2 | 2211 | send = s + len; |
79072805 LW |
2212 | while (s < send && *s != '\\') |
2213 | s++; | |
2214 | if (s == send) | |
b3ac6de7 | 2215 | goto finish; |
79072805 | 2216 | d = s; |
be4731d2 | 2217 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 2218 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 2219 | } |
79072805 LW |
2220 | while (s < send) { |
2221 | if (*s == '\\') { | |
a0d0e21e | 2222 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
2223 | s++; /* all that, just for this */ |
2224 | } | |
2225 | *d++ = *s++; | |
2226 | } | |
2227 | *d = '\0'; | |
95a20fc0 | 2228 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 2229 | finish: |
3280af22 | 2230 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 2231 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
2232 | return sv; |
2233 | } | |
2234 | ||
ffb4593c NT |
2235 | /* |
2236 | * Now come three functions related to double-quote context, | |
2237 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
2238 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
2239 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
2240 | * to handle functions and concatenation. | |
2241 | * They assume that whoever calls them will be setting up a fake | |
2242 | * join call, because each subthing puts a ',' after it. This lets | |
2243 | * "lower \luPpEr" | |
2244 | * become | |
2245 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
2246 | * | |
2247 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
2248 | * arguments and join's arguments are created or not). | |
2249 | */ | |
2250 | ||
2251 | /* | |
2252 | * S_sublex_start | |
6154021b | 2253 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
2254 | * |
2255 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 2256 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
2257 | * |
2258 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
2259 | * | |
2260 | * Everything else becomes a FUNC. | |
2261 | * | |
2262 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
2263 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
2264 | * call to S_sublex_push(). | |
2265 | */ | |
2266 | ||
76e3520e | 2267 | STATIC I32 |
cea2e8a9 | 2268 | S_sublex_start(pTHX) |
79072805 | 2269 | { |
97aff369 | 2270 | dVAR; |
6154021b | 2271 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
2272 | |
2273 | if (op_type == OP_NULL) { | |
6154021b | 2274 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2275 | PL_lex_op = NULL; |
79072805 LW |
2276 | return THING; |
2277 | } | |
2278 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 2279 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
2280 | |
2281 | if (SvTYPE(sv) == SVt_PVIV) { | |
2282 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
2283 | STRLEN len; | |
96a5add6 | 2284 | const char * const p = SvPV_const(sv, len); |
740cce10 | 2285 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
2286 | SvREFCNT_dec(sv); |
2287 | sv = nsv; | |
4e553d73 | 2288 | } |
6154021b | 2289 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 2290 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
2291 | /* Allow <FH> // "foo" */ |
2292 | if (op_type == OP_READLINE) | |
2293 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
2294 | return THING; |
2295 | } | |
e3f73d4e RGS |
2296 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
2297 | /* readpipe() vas overriden */ | |
2298 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 2299 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 2300 | PL_lex_op = NULL; |
e3f73d4e RGS |
2301 | PL_lex_stuff = NULL; |
2302 | return THING; | |
2303 | } | |
79072805 | 2304 | |
3280af22 | 2305 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 2306 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
2307 | PL_sublex_info.sub_op = PL_lex_op; |
2308 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 2309 | |
3280af22 NIS |
2310 | PL_expect = XTERM; |
2311 | if (PL_lex_op) { | |
6154021b | 2312 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2313 | PL_lex_op = NULL; |
55497cff | 2314 | return PMFUNC; |
2315 | } | |
2316 | else | |
2317 | return FUNC; | |
2318 | } | |
2319 | ||
ffb4593c NT |
2320 | /* |
2321 | * S_sublex_push | |
2322 | * Create a new scope to save the lexing state. The scope will be | |
2323 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
2324 | * to the uc, lc, etc. found before. | |
2325 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
2326 | */ | |
2327 | ||
76e3520e | 2328 | STATIC I32 |
cea2e8a9 | 2329 | S_sublex_push(pTHX) |
55497cff | 2330 | { |
27da23d5 | 2331 | dVAR; |
f46d017c | 2332 | ENTER; |
55497cff | 2333 | |
3280af22 | 2334 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 2335 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 2336 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
2337 | SAVEI32(PL_lex_casemods); |
2338 | SAVEI32(PL_lex_starts); | |
651b5b28 | 2339 | SAVEI8(PL_lex_state); |
7766f137 | 2340 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 2341 | SAVEI16(PL_lex_inwhat); |
57843af0 | 2342 | SAVECOPLINE(PL_curcop); |
3280af22 | 2343 | SAVEPPTR(PL_bufptr); |
8452ff4b | 2344 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
2345 | SAVEPPTR(PL_oldbufptr); |
2346 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
2347 | SAVEPPTR(PL_last_lop); |
2348 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
2349 | SAVEPPTR(PL_linestart); |
2350 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
2351 | SAVEGENERICPV(PL_lex_brackstack); |
2352 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
2353 | |
2354 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 2355 | PL_lex_stuff = NULL; |
3280af22 | 2356 | |
9cbb5ea2 GS |
2357 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
2358 | = SvPVX(PL_linestr); | |
3280af22 | 2359 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 2360 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2361 | SAVEFREESV(PL_linestr); |
2362 | ||
2363 | PL_lex_dojoin = FALSE; | |
2364 | PL_lex_brackets = 0; | |
a02a5408 JC |
2365 | Newx(PL_lex_brackstack, 120, char); |
2366 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
2367 | PL_lex_casemods = 0; |
2368 | *PL_lex_casestack = '\0'; | |
2369 | PL_lex_starts = 0; | |
2370 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 2371 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
2372 | |
2373 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
2374 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
2375 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 2376 | else |
5f66b61c | 2377 | PL_lex_inpat = NULL; |
79072805 | 2378 | |
55497cff | 2379 | return '('; |
79072805 LW |
2380 | } |
2381 | ||
ffb4593c NT |
2382 | /* |
2383 | * S_sublex_done | |
2384 | * Restores lexer state after a S_sublex_push. | |
2385 | */ | |
2386 | ||
76e3520e | 2387 | STATIC I32 |
cea2e8a9 | 2388 | S_sublex_done(pTHX) |
79072805 | 2389 | { |
27da23d5 | 2390 | dVAR; |
3280af22 | 2391 | if (!PL_lex_starts++) { |
396482e1 | 2392 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
2393 | if (SvUTF8(PL_linestr)) |
2394 | SvUTF8_on(sv); | |
3280af22 | 2395 | PL_expect = XOPERATOR; |
6154021b | 2396 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
2397 | return THING; |
2398 | } | |
2399 | ||
3280af22 NIS |
2400 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
2401 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 2402 | return yylex(); |
79072805 LW |
2403 | } |
2404 | ||
ffb4593c | 2405 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
2406 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
2407 | PL_linestr = PL_lex_repl; | |
2408 | PL_lex_inpat = 0; | |
2409 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
2410 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 2411 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2412 | SAVEFREESV(PL_linestr); |
2413 | PL_lex_dojoin = FALSE; | |
2414 | PL_lex_brackets = 0; | |
3280af22 NIS |
2415 | PL_lex_casemods = 0; |
2416 | *PL_lex_casestack = '\0'; | |
2417 | PL_lex_starts = 0; | |
25da4f38 | 2418 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
2419 | PL_lex_state = LEX_INTERPNORMAL; |
2420 | PL_lex_starts++; | |
e9fa98b2 HS |
2421 | /* we don't clear PL_lex_repl here, so that we can check later |
2422 | whether this is an evalled subst; that means we rely on the | |
2423 | logic to ensure sublex_done() is called again only via the | |
2424 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 2425 | } |
e9fa98b2 | 2426 | else { |
3280af22 | 2427 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 2428 | PL_lex_repl = NULL; |
e9fa98b2 | 2429 | } |
79072805 | 2430 | return ','; |
ffed7fef LW |
2431 | } |
2432 | else { | |
5db06880 NC |
2433 | #ifdef PERL_MAD |
2434 | if (PL_madskills) { | |
cd81e915 NC |
2435 | if (PL_thiswhite) { |
2436 | if (!PL_endwhite) | |
6b29d1f5 | 2437 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
2438 | sv_catsv(PL_endwhite, PL_thiswhite); |
2439 | PL_thiswhite = 0; | |
2440 | } | |
2441 | if (PL_thistoken) | |
76f68e9b | 2442 | sv_setpvs(PL_thistoken,""); |
5db06880 | 2443 | else |
cd81e915 | 2444 | PL_realtokenstart = -1; |
5db06880 NC |
2445 | } |
2446 | #endif | |
f46d017c | 2447 | LEAVE; |
3280af22 NIS |
2448 | PL_bufend = SvPVX(PL_linestr); |
2449 | PL_bufend += SvCUR(PL_linestr); | |
2450 | PL_expect = XOPERATOR; | |
09bef843 | 2451 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 2452 | return ')'; |
ffed7fef LW |
2453 | } |
2454 | } | |
2455 | ||
02aa26ce NT |
2456 | /* |
2457 | scan_const | |
2458 | ||
2459 | Extracts a pattern, double-quoted string, or transliteration. This | |
2460 | is terrifying code. | |
2461 | ||
94def140 | 2462 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 2463 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 2464 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 2465 | |
94def140 TS |
2466 | Returns a pointer to the character scanned up to. If this is |
2467 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 2468 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 2469 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
2470 | by looking at the next characters herself. |
2471 | ||
02aa26ce NT |
2472 | In patterns: |
2473 | backslashes: | |
2474 | double-quoted style: \r and \n | |
2475 | regexp special ones: \D \s | |
94def140 TS |
2476 | constants: \x31 |
2477 | backrefs: \1 | |
02aa26ce NT |
2478 | case and quoting: \U \Q \E |
2479 | stops on @ and $, but not for $ as tail anchor | |
2480 | ||
2481 | In transliterations: | |
2482 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
2483 | of the string, which indicates a range. If the range is in bytes, |
2484 | scan_const expands the range to the full set of intermediate | |
2485 | characters. If the range is in utf8, the hyphen is replaced with | |
2486 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
2487 | |
2488 | In double-quoted strings: | |
2489 | backslashes: | |
2490 | double-quoted style: \r and \n | |
94def140 TS |
2491 | constants: \x31 |
2492 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
2493 | case and quoting: \U \Q \E |
2494 | stops on @ and $ | |
2495 | ||
2496 | scan_const does *not* construct ops to handle interpolated strings. | |
2497 | It stops processing as soon as it finds an embedded $ or @ variable | |
2498 | and leaves it to the caller to work out what's going on. | |
2499 | ||
94def140 TS |
2500 | embedded arrays (whether in pattern or not) could be: |
2501 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
2502 | ||
2503 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
2504 | |
2505 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
2506 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 2507 | followed by one of "()| \r\n\t" |
02aa26ce NT |
2508 | |
2509 | \1 (backreferences) are turned into $1 | |
2510 | ||
2511 | The structure of the code is | |
2512 | while (there's a character to process) { | |
94def140 TS |
2513 | handle transliteration ranges |
2514 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
2515 | skip #-initiated comments in //x patterns | |
2516 | check for embedded arrays | |
02aa26ce NT |
2517 | check for embedded scalars |
2518 | if (backslash) { | |
94def140 TS |
2519 | leave intact backslashes from leaveit (below) |
2520 | deprecate \1 in substitution replacements | |
02aa26ce NT |
2521 | handle string-changing backslashes \l \U \Q \E, etc. |
2522 | switch (what was escaped) { | |
94def140 TS |
2523 | handle \- in a transliteration (becomes a literal -) |
2524 | handle \132 (octal characters) | |
2525 | handle \x15 and \x{1234} (hex characters) | |
2526 | handle \N{name} (named characters) | |
2527 | handle \cV (control characters) | |
2528 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce | 2529 | } (end switch) |
77a135fe | 2530 | continue |
02aa26ce | 2531 | } (end if backslash) |
77a135fe | 2532 | handle regular character |
02aa26ce | 2533 | } (end while character to read) |
4e553d73 | 2534 | |
02aa26ce NT |
2535 | */ |
2536 | ||
76e3520e | 2537 | STATIC char * |
cea2e8a9 | 2538 | S_scan_const(pTHX_ char *start) |
79072805 | 2539 | { |
97aff369 | 2540 | dVAR; |
3280af22 | 2541 | register char *send = PL_bufend; /* end of the constant */ |
77a135fe KW |
2542 | SV *sv = newSV(send - start); /* sv for the constant. See |
2543 | note below on sizing. */ | |
02aa26ce NT |
2544 | register char *s = start; /* start of the constant */ |
2545 | register char *d = SvPVX(sv); /* destination for copies */ | |
2546 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 2547 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 | 2548 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
77a135fe KW |
2549 | I32 this_utf8 = UTF; /* Is the source string assumed |
2550 | to be UTF8? But, this can | |
2551 | show as true when the source | |
2552 | isn't utf8, as for example | |
2553 | when it is entirely composed | |
2554 | of hex constants */ | |
2555 | ||
2556 | /* Note on sizing: The scanned constant is placed into sv, which is | |
2557 | * initialized by newSV() assuming one byte of output for every byte of | |
2558 | * input. This routine expects newSV() to allocate an extra byte for a | |
2559 | * trailing NUL, which this routine will append if it gets to the end of | |
2560 | * the input. There may be more bytes of input than output (eg., \N{LATIN | |
2561 | * CAPITAL LETTER A}), or more output than input if the constant ends up | |
2562 | * recoded to utf8, but each time a construct is found that might increase | |
2563 | * the needed size, SvGROW() is called. Its size parameter each time is | |
2564 | * based on the best guess estimate at the time, namely the length used so | |
2565 | * far, plus the length the current construct will occupy, plus room for | |
2566 | * the trailing NUL, plus one byte for every input byte still unscanned */ | |
2567 | ||
012bcf8d | 2568 | UV uv; |
4c3a8340 TS |
2569 | #ifdef EBCDIC |
2570 | UV literal_endpoint = 0; | |
e294cc5d | 2571 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 2572 | #endif |
012bcf8d | 2573 | |
7918f24d NC |
2574 | PERL_ARGS_ASSERT_SCAN_CONST; |
2575 | ||
2b9d42f0 NIS |
2576 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
2577 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
2578 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
2579 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
2580 | } | |
2581 | ||
2582 | ||
79072805 | 2583 | while (s < send || dorange) { |
02aa26ce | 2584 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 2585 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 2586 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 2587 | if (dorange) { |
1ba5c669 JH |
2588 | I32 i; /* current expanded character */ |
2589 | I32 min; /* first character in range */ | |
2590 | I32 max; /* last character in range */ | |
02aa26ce | 2591 | |
e294cc5d JH |
2592 | #ifdef EBCDIC |
2593 | UV uvmax = 0; | |
2594 | #endif | |
2595 | ||
2596 | if (has_utf8 | |
2597 | #ifdef EBCDIC | |
2598 | && !native_range | |
2599 | #endif | |
2600 | ) { | |
9d4ba2ae | 2601 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
2602 | char *e = d++; |
2603 | while (e-- > c) | |
2604 | *(e + 1) = *e; | |
25716404 | 2605 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
2606 | /* mark the range as done, and continue */ |
2607 | dorange = FALSE; | |
2608 | didrange = TRUE; | |
2609 | continue; | |
2610 | } | |
2b9d42f0 | 2611 | |
95a20fc0 | 2612 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
2613 | #ifdef EBCDIC |
2614 | SvGROW(sv, | |
2615 | SvLEN(sv) + (has_utf8 ? | |
2616 | (512 - UTF_CONTINUATION_MARK + | |
2617 | UNISKIP(0x100)) | |
2618 | : 256)); | |
2619 | /* How many two-byte within 0..255: 128 in UTF-8, | |
2620 | * 96 in UTF-8-mod. */ | |
2621 | #else | |
9cbb5ea2 | 2622 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 2623 | #endif |
9cbb5ea2 | 2624 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
2625 | #ifdef EBCDIC |
2626 | if (has_utf8) { | |
2627 | int j; | |
2628 | for (j = 0; j <= 1; j++) { | |
2629 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
2630 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
2631 | if (j) | |
2632 | min = (U8)uv; | |
2633 | else if (uv < 256) | |
2634 | max = (U8)uv; | |
2635 | else { | |
2636 | max = (U8)0xff; /* only to \xff */ | |
2637 | uvmax = uv; /* \x{100} to uvmax */ | |
2638 | } | |
2639 | d = c; /* eat endpoint chars */ | |
2640 | } | |
2641 | } | |
2642 | else { | |
2643 | #endif | |
2644 | d -= 2; /* eat the first char and the - */ | |
2645 | min = (U8)*d; /* first char in range */ | |
2646 | max = (U8)d[1]; /* last char in range */ | |
2647 | #ifdef EBCDIC | |
2648 | } | |
2649 | #endif | |
8ada0baa | 2650 | |
c2e66d9e | 2651 | if (min > max) { |
01ec43d0 | 2652 | Perl_croak(aTHX_ |
d1573ac7 | 2653 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 2654 | (char)min, (char)max); |
c2e66d9e GS |
2655 | } |
2656 | ||
c7f1f016 | 2657 | #ifdef EBCDIC |
4c3a8340 TS |
2658 | if (literal_endpoint == 2 && |
2659 | ((isLOWER(min) && isLOWER(max)) || | |
2660 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
2661 | if (isLOWER(min)) { |
2662 | for (i = min; i <= max; i++) | |
2663 | if (isLOWER(i)) | |
db42d148 | 2664 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2665 | } else { |
2666 | for (i = min; i <= max; i++) | |
2667 | if (isUPPER(i)) | |
db42d148 | 2668 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2669 | } |
2670 | } | |
2671 | else | |
2672 | #endif | |
2673 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2674 | #ifdef EBCDIC |
2675 | if (has_utf8) { | |
2676 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2677 | if (UNI_IS_INVARIANT(ch)) | |
2678 | *d++ = (U8)i; | |
2679 | else { | |
2680 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2681 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2682 | } | |
2683 | } | |
2684 | else | |
2685 | #endif | |
2686 | *d++ = (char)i; | |
2687 | ||
2688 | #ifdef EBCDIC | |
2689 | if (uvmax) { | |
2690 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2691 | if (uvmax > 0x101) | |
2692 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2693 | if (uvmax > 0x100) | |
2694 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2695 | } | |
2696 | #endif | |
02aa26ce NT |
2697 | |
2698 | /* mark the range as done, and continue */ | |
79072805 | 2699 | dorange = FALSE; |
01ec43d0 | 2700 | didrange = TRUE; |
4c3a8340 TS |
2701 | #ifdef EBCDIC |
2702 | literal_endpoint = 0; | |
2703 | #endif | |
79072805 | 2704 | continue; |
4e553d73 | 2705 | } |
02aa26ce NT |
2706 | |
2707 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2708 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2709 | if (didrange) { |
1fafa243 | 2710 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2711 | } |
e294cc5d JH |
2712 | if (has_utf8 |
2713 | #ifdef EBCDIC | |
2714 | && !native_range | |
2715 | #endif | |
2716 | ) { | |
25716404 | 2717 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2718 | s++; |
2719 | continue; | |
2720 | } | |
79072805 LW |
2721 | dorange = TRUE; |
2722 | s++; | |
01ec43d0 GS |
2723 | } |
2724 | else { | |
2725 | didrange = FALSE; | |
4c3a8340 TS |
2726 | #ifdef EBCDIC |
2727 | literal_endpoint = 0; | |
e294cc5d | 2728 | native_range = TRUE; |
4c3a8340 | 2729 | #endif |
01ec43d0 | 2730 | } |
79072805 | 2731 | } |
02aa26ce NT |
2732 | |
2733 | /* if we get here, we're not doing a transliteration */ | |
2734 | ||
0f5d15d6 IZ |
2735 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2736 | except for the last char, which will be done separately. */ | |
3280af22 | 2737 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2738 | if (s[2] == '#') { |
e994fd66 | 2739 | while (s+1 < send && *s != ')') |
db42d148 | 2740 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2741 | } |
2742 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2743 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2744 | { |
cc6b7395 | 2745 | I32 count = 1; |
0f5d15d6 | 2746 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2747 | char c; |
2748 | ||
d9f97599 GS |
2749 | while (count && (c = *regparse)) { |
2750 | if (c == '\\' && regparse[1]) | |
2751 | regparse++; | |
4e553d73 | 2752 | else if (c == '{') |
cc6b7395 | 2753 | count++; |
4e553d73 | 2754 | else if (c == '}') |
cc6b7395 | 2755 | count--; |
d9f97599 | 2756 | regparse++; |
cc6b7395 | 2757 | } |
e994fd66 | 2758 | if (*regparse != ')') |
5bdf89e7 | 2759 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2760 | while (s < regparse) |
db42d148 | 2761 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2762 | } |
748a9306 | 2763 | } |
02aa26ce NT |
2764 | |
2765 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2766 | else if (*s == '#' && PL_lex_inpat && |
2767 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2768 | while (s+1 < send && *s != '\n') |
db42d148 | 2769 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2770 | } |
02aa26ce | 2771 | |
5d1d4326 | 2772 | /* check for embedded arrays |
da6eedaa | 2773 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2774 | */ |
1749ea0d TS |
2775 | else if (*s == '@' && s[1]) { |
2776 | if (isALNUM_lazy_if(s+1,UTF)) | |
2777 | break; | |
2778 | if (strchr(":'{$", s[1])) | |
2779 | break; | |
2780 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2781 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2782 | } | |
02aa26ce NT |
2783 | |
2784 | /* check for embedded scalars. only stop if we're sure it's a | |
2785 | variable. | |
2786 | */ | |
79072805 | 2787 | else if (*s == '$') { |
3280af22 | 2788 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2789 | break; |
77772344 | 2790 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) { |
a2a5de95 NC |
2791 | if (s[1] == '\\') { |
2792 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
2793 | "Possible unintended interpolation of $\\ in regex"); | |
77772344 | 2794 | } |
79072805 | 2795 | break; /* in regexp, $ might be tail anchor */ |
77772344 | 2796 | } |
79072805 | 2797 | } |
02aa26ce | 2798 | |
2b9d42f0 NIS |
2799 | /* End of else if chain - OP_TRANS rejoin rest */ |
2800 | ||
02aa26ce | 2801 | /* backslashes */ |
79072805 LW |
2802 | if (*s == '\\' && s+1 < send) { |
2803 | s++; | |
02aa26ce | 2804 | |
02aa26ce | 2805 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2806 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2807 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2808 | { |
a2a5de95 | 2809 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2810 | *--s = '$'; |
2811 | break; | |
2812 | } | |
02aa26ce NT |
2813 | |
2814 | /* string-change backslash escapes */ | |
3280af22 | 2815 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2816 | --s; |
2817 | break; | |
2818 | } | |
cc74c5bd TS |
2819 | /* skip any other backslash escapes in a pattern */ |
2820 | else if (PL_lex_inpat) { | |
2821 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2822 | goto default_action; | |
2823 | } | |
02aa26ce NT |
2824 | |
2825 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2826 | switch (*s) { |
02aa26ce NT |
2827 | |
2828 | /* quoted - in transliterations */ | |
79072805 | 2829 | case '-': |
3280af22 | 2830 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2831 | *d++ = *s++; |
2832 | continue; | |
2833 | } | |
2834 | /* FALL THROUGH */ | |
2835 | default: | |
11b8faa4 | 2836 | { |
a2a5de95 NC |
2837 | if ((isALPHA(*s) || isDIGIT(*s))) |
2838 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
2839 | "Unrecognized escape \\%c passed through", | |
2840 | *s); | |
11b8faa4 | 2841 | /* default action is to copy the quoted character */ |
f9a63242 | 2842 | goto default_action; |
11b8faa4 | 2843 | } |
02aa26ce | 2844 | |
77a135fe | 2845 | /* eg. \132 indicates the octal constant 0x132 */ |
79072805 LW |
2846 | case '0': case '1': case '2': case '3': |
2847 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2848 | { |
53305cf1 NC |
2849 | I32 flags = 0; |
2850 | STRLEN len = 3; | |
77a135fe | 2851 | uv = NATIVE_TO_UNI(grok_oct(s, &len, &flags, NULL)); |
ba210ebe JH |
2852 | s += len; |
2853 | } | |
012bcf8d | 2854 | goto NUM_ESCAPE_INSERT; |
02aa26ce | 2855 | |
77a135fe | 2856 | /* eg. \x24 indicates the hex constant 0x24 */ |
79072805 | 2857 | case 'x': |
a0ed51b3 LW |
2858 | ++s; |
2859 | if (*s == '{') { | |
9d4ba2ae | 2860 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2861 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2862 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2863 | STRLEN len; |
355860ce | 2864 | |
53305cf1 | 2865 | ++s; |
adaeee49 | 2866 | if (!e) { |
a0ed51b3 | 2867 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2868 | continue; |
ba210ebe | 2869 | } |
53305cf1 | 2870 | len = e - s; |
77a135fe | 2871 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe | 2872 | s = e + 1; |
a0ed51b3 LW |
2873 | } |
2874 | else { | |
ba210ebe | 2875 | { |
53305cf1 | 2876 | STRLEN len = 2; |
a4c04bdc | 2877 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
77a135fe | 2878 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe JH |
2879 | s += len; |
2880 | } | |
012bcf8d GS |
2881 | } |
2882 | ||
2883 | NUM_ESCAPE_INSERT: | |
77a135fe KW |
2884 | /* Insert oct, hex, or \N{U+...} escaped character. There will |
2885 | * always be enough room in sv since such escapes will be | |
2886 | * longer than any UTF-8 sequence they can end up as, except if | |
2887 | * they force us to recode the rest of the string into utf8 */ | |
ba7cea30 | 2888 | |
77a135fe KW |
2889 | /* Here uv is the ordinal of the next character being added in |
2890 | * unicode (converted from native). (It has to be done before | |
2891 | * here because \N is interpreted as unicode, and oct and hex | |
2892 | * as native.) */ | |
2893 | if (!UNI_IS_INVARIANT(uv)) { | |
9aa983d2 | 2894 | if (!has_utf8 && uv > 255) { |
77a135fe KW |
2895 | /* Might need to recode whatever we have accumulated so |
2896 | * far if it contains any chars variant in utf8 or | |
2897 | * utf-ebcdic. */ | |
2898 | ||
2899 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
2900 | SvPOK_on(sv); | |
2901 | *d = '\0'; | |
77a135fe | 2902 | /* See Note on sizing above. */ |
7bf79863 KW |
2903 | sv_utf8_upgrade_flags_grow(sv, |
2904 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
2905 | UNISKIP(uv) + (STRLEN)(send - s) + 1); | |
77a135fe KW |
2906 | d = SvPVX(sv) + SvCUR(sv); |
2907 | has_utf8 = TRUE; | |
012bcf8d GS |
2908 | } |
2909 | ||
77a135fe KW |
2910 | if (has_utf8) { |
2911 | d = (char*)uvuni_to_utf8((U8*)d, uv); | |
f9a63242 JH |
2912 | if (PL_lex_inwhat == OP_TRANS && |
2913 | PL_sublex_info.sub_op) { | |
2914 | PL_sublex_info.sub_op->op_private |= | |
2915 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2916 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2917 | } |
e294cc5d JH |
2918 | #ifdef EBCDIC |
2919 | if (uv > 255 && !dorange) | |
2920 | native_range = FALSE; | |
2921 | #endif | |
012bcf8d | 2922 | } |
a0ed51b3 | 2923 | else { |
012bcf8d | 2924 | *d++ = (char)uv; |
a0ed51b3 | 2925 | } |
012bcf8d GS |
2926 | } |
2927 | else { | |
c4d5f83a | 2928 | *d++ = (char) uv; |
a0ed51b3 | 2929 | } |
79072805 | 2930 | continue; |
02aa26ce | 2931 | |
77a135fe KW |
2932 | /* \N{LATIN SMALL LETTER A} is a named character, and so is |
2933 | * \N{U+0041} */ | |
4a2d328f | 2934 | case 'N': |
55eda711 | 2935 | ++s; |
423cee85 JH |
2936 | if (*s == '{') { |
2937 | char* e = strchr(s, '}'); | |
155aba94 | 2938 | SV *res; |
423cee85 | 2939 | STRLEN len; |
cfd0369c | 2940 | const char *str; |
4e553d73 | 2941 | |
423cee85 | 2942 | if (!e) { |
5777a3f7 | 2943 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2944 | e = s - 1; |
2945 | goto cont_scan; | |
2946 | } | |
dbc0d4f2 | 2947 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
77a135fe KW |
2948 | /* \N{U+...} The ... is a unicode value even on EBCDIC |
2949 | * machines */ | |
dbc0d4f2 JH |
2950 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2951 | PERL_SCAN_DISALLOW_PREFIX; | |
2952 | s += 3; | |
2953 | len = e - s; | |
2954 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2955 | if ( e > s && len != (STRLEN)(e - s) ) { |
2956 | uv = 0xFFFD; | |
fc8cd66c | 2957 | } |
dbc0d4f2 JH |
2958 | s = e + 1; |
2959 | goto NUM_ESCAPE_INSERT; | |
2960 | } | |
55eda711 | 2961 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2962 | res = new_constant( NULL, 0, "charnames", |
eb0d8d16 | 2963 | res, NULL, s - 2, e - s + 3 ); |
f9a63242 JH |
2964 | if (has_utf8) |
2965 | sv_utf8_upgrade(res); | |
cfd0369c | 2966 | str = SvPV_const(res,len); |
1c47067b JH |
2967 | #ifdef EBCDIC_NEVER_MIND |
2968 | /* charnames uses pack U and that has been | |
2969 | * recently changed to do the below uni->native | |
2970 | * mapping, so this would be redundant (and wrong, | |
2971 | * the code point would be doubly converted). | |
2972 | * But leave this in just in case the pack U change | |
2973 | * gets revoked, but the semantics is still | |
2974 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2975 | { |
cfd0369c | 2976 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2977 | |
2978 | if (uv < 0x100) { | |
89ebb4a3 | 2979 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2980 | |
2981 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2982 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2983 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2984 | } |
2985 | } | |
2986 | #endif | |
77a135fe KW |
2987 | /* If destination is not in utf8 but this new character is, |
2988 | * recode the dest to utf8 */ | |
89491803 | 2989 | if (!has_utf8 && SvUTF8(res)) { |
77a135fe | 2990 | SvCUR_set(sv, d - SvPVX_const(sv)); |
f08d6ad9 | 2991 | SvPOK_on(sv); |
e4f3eed8 | 2992 | *d = '\0'; |
77a135fe | 2993 | /* See Note on sizing above. */ |
7bf79863 KW |
2994 | sv_utf8_upgrade_flags_grow(sv, |
2995 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
2996 | len + (STRLEN)(send - s) + 1); | |
f08d6ad9 | 2997 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2998 | has_utf8 = TRUE; |
77a135fe | 2999 | } else if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
423cee85 | 3000 | |
77a135fe KW |
3001 | /* See Note on sizing above. (NOTE: SvCUR() is not set |
3002 | * correctly here). */ | |
3003 | const STRLEN off = d - SvPVX_const(sv); | |
3004 | d = SvGROW(sv, off + len + (STRLEN)(send - s) + 1) + off; | |
423cee85 | 3005 | } |
e294cc5d JH |
3006 | #ifdef EBCDIC |
3007 | if (!dorange) | |
3008 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
3009 | #endif | |
423cee85 JH |
3010 | Copy(str, d, len, char); |
3011 | d += len; | |
3012 | SvREFCNT_dec(res); | |
3013 | cont_scan: | |
3014 | s = e + 1; | |
3015 | } | |
3016 | else | |
5777a3f7 | 3017 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
3018 | continue; |
3019 | ||
02aa26ce | 3020 | /* \c is a control character */ |
79072805 LW |
3021 | case 'c': |
3022 | s++; | |
961ce445 | 3023 | if (s < send) { |
ba210ebe | 3024 | U8 c = *s++; |
c7f1f016 NIS |
3025 | #ifdef EBCDIC |
3026 | if (isLOWER(c)) | |
3027 | c = toUPPER(c); | |
3028 | #endif | |
db42d148 | 3029 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 3030 | } |
961ce445 RGS |
3031 | else { |
3032 | yyerror("Missing control char name in \\c"); | |
3033 | } | |
79072805 | 3034 | continue; |
02aa26ce NT |
3035 | |
3036 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 3037 | case 'b': |
db42d148 | 3038 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
3039 | break; |
3040 | case 'n': | |
db42d148 | 3041 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
3042 | break; |
3043 | case 'r': | |
db42d148 | 3044 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
3045 | break; |
3046 | case 'f': | |
db42d148 | 3047 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
3048 | break; |
3049 | case 't': | |
db42d148 | 3050 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 3051 | break; |
34a3fe2a | 3052 | case 'e': |
db42d148 | 3053 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
3054 | break; |
3055 | case 'a': | |
db42d148 | 3056 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 3057 | break; |
02aa26ce NT |
3058 | } /* end switch */ |
3059 | ||
79072805 LW |
3060 | s++; |
3061 | continue; | |
02aa26ce | 3062 | } /* end if (backslash) */ |
4c3a8340 TS |
3063 | #ifdef EBCDIC |
3064 | else | |
3065 | literal_endpoint++; | |
3066 | #endif | |
02aa26ce | 3067 | |
f9a63242 | 3068 | default_action: |
77a135fe KW |
3069 | /* If we started with encoded form, or already know we want it, |
3070 | then encode the next character */ | |
3071 | if (! NATIVE_IS_INVARIANT((U8)(*s)) && (this_utf8 || has_utf8)) { | |
2b9d42f0 | 3072 | STRLEN len = 1; |
77a135fe KW |
3073 | |
3074 | ||
3075 | /* One might think that it is wasted effort in the case of the | |
3076 | * source being utf8 (this_utf8 == TRUE) to take the next character | |
3077 | * in the source, convert it to an unsigned value, and then convert | |
3078 | * it back again. But the source has not been validated here. The | |
3079 | * routine that does the conversion checks for errors like | |
3080 | * malformed utf8 */ | |
3081 | ||
5f66b61c AL |
3082 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
3083 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
77a135fe KW |
3084 | if (!has_utf8) { |
3085 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3086 | SvPOK_on(sv); | |
3087 | *d = '\0'; | |
77a135fe | 3088 | /* See Note on sizing above. */ |
7bf79863 KW |
3089 | sv_utf8_upgrade_flags_grow(sv, |
3090 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3091 | need + (STRLEN)(send - s) + 1); | |
77a135fe KW |
3092 | d = SvPVX(sv) + SvCUR(sv); |
3093 | has_utf8 = TRUE; | |
3094 | } else if (need > len) { | |
3095 | /* encoded value larger than old, may need extra space (NOTE: | |
3096 | * SvCUR() is not set correctly here). See Note on sizing | |
3097 | * above. */ | |
9d4ba2ae | 3098 | const STRLEN off = d - SvPVX_const(sv); |
77a135fe | 3099 | d = SvGROW(sv, off + need + (STRLEN)(send - s) + 1) + off; |
2b9d42f0 | 3100 | } |
77a135fe KW |
3101 | s += len; |
3102 | ||
5f66b61c | 3103 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
e294cc5d JH |
3104 | #ifdef EBCDIC |
3105 | if (uv > 255 && !dorange) | |
3106 | native_range = FALSE; | |
3107 | #endif | |
2b9d42f0 NIS |
3108 | } |
3109 | else { | |
3110 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
3111 | } | |
02aa26ce NT |
3112 | } /* while loop to process each character */ |
3113 | ||
3114 | /* terminate the string and set up the sv */ | |
79072805 | 3115 | *d = '\0'; |
95a20fc0 | 3116 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 3117 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 3118 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 3119 | |
79072805 | 3120 | SvPOK_on(sv); |
9f4817db | 3121 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
3122 | sv_recode_to_utf8(sv, PL_encoding); |
3123 | if (SvUTF8(sv)) | |
3124 | has_utf8 = TRUE; | |
9f4817db | 3125 | } |
2b9d42f0 | 3126 | if (has_utf8) { |
7e2040f0 | 3127 | SvUTF8_on(sv); |
2b9d42f0 | 3128 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 3129 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
3130 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
3131 | } | |
3132 | } | |
79072805 | 3133 | |
02aa26ce | 3134 | /* shrink the sv if we allocated more than we used */ |
79072805 | 3135 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 3136 | SvPV_shrink_to_cur(sv); |
79072805 | 3137 | } |
02aa26ce | 3138 | |
6154021b | 3139 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 3140 | if (s > PL_bufptr) { |
eb0d8d16 NC |
3141 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
3142 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
3143 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
3144 | const char *type; | |
3145 | STRLEN typelen; | |
3146 | ||
3147 | if (PL_lex_inwhat == OP_TRANS) { | |
3148 | type = "tr"; | |
3149 | typelen = 2; | |
3150 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
3151 | type = "s"; | |
3152 | typelen = 1; | |
3153 | } else { | |
3154 | type = "qq"; | |
3155 | typelen = 2; | |
3156 | } | |
3157 | ||
3158 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
3159 | type, typelen); | |
3160 | } | |
6154021b | 3161 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 3162 | } else |
8990e307 | 3163 | SvREFCNT_dec(sv); |
79072805 LW |
3164 | return s; |
3165 | } | |
3166 | ||
ffb4593c NT |
3167 | /* S_intuit_more |
3168 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
3169 | * FALSE otherwise. | |
ffb4593c NT |
3170 | * |
3171 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
3172 | * | |
3173 | * ->[ and ->{ return TRUE | |
3174 | * { and [ outside a pattern are always subscripts, so return TRUE | |
3175 | * if we're outside a pattern and it's not { or [, then return FALSE | |
3176 | * if we're in a pattern and the first char is a { | |
3177 | * {4,5} (any digits around the comma) returns FALSE | |
3178 | * if we're in a pattern and the first char is a [ | |
3179 | * [] returns FALSE | |
3180 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
3181 | * character class or not. It has to deal with things like | |
3182 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
3183 | * anything else returns TRUE | |
3184 | */ | |
3185 | ||
9cbb5ea2 GS |
3186 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
3187 | ||
76e3520e | 3188 | STATIC int |
cea2e8a9 | 3189 | S_intuit_more(pTHX_ register char *s) |
79072805 | 3190 | { |
97aff369 | 3191 | dVAR; |
7918f24d NC |
3192 | |
3193 | PERL_ARGS_ASSERT_INTUIT_MORE; | |
3194 | ||
3280af22 | 3195 | if (PL_lex_brackets) |
79072805 LW |
3196 | return TRUE; |
3197 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
3198 | return TRUE; | |
3199 | if (*s != '{' && *s != '[') | |
3200 | return FALSE; | |
3280af22 | 3201 | if (!PL_lex_inpat) |
79072805 LW |
3202 | return TRUE; |
3203 | ||
3204 | /* In a pattern, so maybe we have {n,m}. */ | |
3205 | if (*s == '{') { | |
3206 | s++; | |
3207 | if (!isDIGIT(*s)) | |
3208 | return TRUE; | |
3209 | while (isDIGIT(*s)) | |
3210 | s++; | |
3211 | if (*s == ',') | |
3212 | s++; | |
3213 | while (isDIGIT(*s)) | |
3214 | s++; | |
3215 | if (*s == '}') | |
3216 | return FALSE; | |
3217 | return TRUE; | |
3218 | ||
3219 | } | |
3220 | ||
3221 | /* On the other hand, maybe we have a character class */ | |
3222 | ||
3223 | s++; | |
3224 | if (*s == ']' || *s == '^') | |
3225 | return FALSE; | |
3226 | else { | |
ffb4593c | 3227 | /* this is terrifying, and it works */ |
79072805 LW |
3228 | int weight = 2; /* let's weigh the evidence */ |
3229 | char seen[256]; | |
f27ffc4a | 3230 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 3231 | const char * const send = strchr(s,']'); |
3280af22 | 3232 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
3233 | |
3234 | if (!send) /* has to be an expression */ | |
3235 | return TRUE; | |
3236 | ||
3237 | Zero(seen,256,char); | |
3238 | if (*s == '$') | |
3239 | weight -= 3; | |
3240 | else if (isDIGIT(*s)) { | |
3241 | if (s[1] != ']') { | |
3242 | if (isDIGIT(s[1]) && s[2] == ']') | |
3243 | weight -= 10; | |
3244 | } | |
3245 | else | |
3246 | weight -= 100; | |
3247 | } | |
3248 | for (; s < send; s++) { | |
3249 | last_un_char = un_char; | |
3250 | un_char = (unsigned char)*s; | |
3251 | switch (*s) { | |
3252 | case '@': | |
3253 | case '&': | |
3254 | case '$': | |
3255 | weight -= seen[un_char] * 10; | |
7e2040f0 | 3256 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 3257 | int len; |
8903cb82 | 3258 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
3259 | len = (int)strlen(tmpbuf); |
3260 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
3261 | weight -= 100; |
3262 | else | |
3263 | weight -= 10; | |
3264 | } | |
3265 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
3266 | strchr("[#!%*<>()-=",s[1])) { |
3267 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
3268 | weight -= 10; |
3269 | else | |
3270 | weight -= 1; | |
3271 | } | |
3272 | break; | |
3273 | case '\\': | |
3274 | un_char = 254; | |
3275 | if (s[1]) { | |
93a17b20 | 3276 | if (strchr("wds]",s[1])) |
79072805 | 3277 | weight += 100; |
10edeb5d | 3278 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 3279 | weight += 1; |
93a17b20 | 3280 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
3281 | weight += 40; |
3282 | else if (isDIGIT(s[1])) { | |
3283 | weight += 40; | |
3284 | while (s[1] && isDIGIT(s[1])) | |
3285 | s++; | |
3286 | } | |
3287 | } | |
3288 | else | |
3289 | weight += 100; | |
3290 | break; | |
3291 | case '-': | |
3292 | if (s[1] == '\\') | |
3293 | weight += 50; | |
93a17b20 | 3294 | if (strchr("aA01! ",last_un_char)) |
79072805 | 3295 | weight += 30; |
93a17b20 | 3296 | if (strchr("zZ79~",s[1])) |
79072805 | 3297 | weight += 30; |
f27ffc4a GS |
3298 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
3299 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
3300 | break; |
3301 | default: | |
3792a11b NC |
3302 | if (!isALNUM(last_un_char) |
3303 | && !(last_un_char == '$' || last_un_char == '@' | |
3304 | || last_un_char == '&') | |
3305 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
3306 | char *d = tmpbuf; |
3307 | while (isALPHA(*s)) | |
3308 | *d++ = *s++; | |
3309 | *d = '\0'; | |
5458a98a | 3310 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
3311 | weight -= 150; |
3312 | } | |
3313 | if (un_char == last_un_char + 1) | |
3314 | weight += 5; | |
3315 | weight -= seen[un_char]; | |
3316 | break; | |
3317 | } | |
3318 | seen[un_char]++; | |
3319 | } | |
3320 | if (weight >= 0) /* probably a character class */ | |
3321 | return FALSE; | |
3322 | } | |
3323 | ||
3324 | return TRUE; | |
3325 | } | |
ffed7fef | 3326 | |
ffb4593c NT |
3327 | /* |
3328 | * S_intuit_method | |
3329 | * | |
3330 | * Does all the checking to disambiguate | |
3331 | * foo bar | |
3332 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
3333 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
3334 | * | |
3335 | * First argument is the stuff after the first token, e.g. "bar". | |
3336 | * | |
3337 | * Not a method if bar is a filehandle. | |
3338 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
3339 | * Not a method if it's really "Foo $bar" | |
3340 | * Method if it's "foo $bar" | |
3341 | * Not a method if it's really "print foo $bar" | |
3342 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 3343 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 3344 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
3345 | * => |
3346 | */ | |
3347 | ||
76e3520e | 3348 | STATIC int |
62d55b22 | 3349 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 3350 | { |
97aff369 | 3351 | dVAR; |
a0d0e21e | 3352 | char *s = start + (*start == '$'); |
3280af22 | 3353 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
3354 | STRLEN len; |
3355 | GV* indirgv; | |
5db06880 NC |
3356 | #ifdef PERL_MAD |
3357 | int soff; | |
3358 | #endif | |
a0d0e21e | 3359 | |
7918f24d NC |
3360 | PERL_ARGS_ASSERT_INTUIT_METHOD; |
3361 | ||
a0d0e21e | 3362 | if (gv) { |
62d55b22 | 3363 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 3364 | return 0; |
62d55b22 NC |
3365 | if (cv) { |
3366 | if (SvPOK(cv)) { | |
3367 | const char *proto = SvPVX_const(cv); | |
3368 | if (proto) { | |
3369 | if (*proto == ';') | |
3370 | proto++; | |
3371 | if (*proto == '*') | |
3372 | return 0; | |
3373 | } | |
b6c543e3 IZ |
3374 | } |
3375 | } else | |
c35e046a | 3376 | gv = NULL; |
a0d0e21e | 3377 | } |
8903cb82 | 3378 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
3379 | /* start is the beginning of the possible filehandle/object, |
3380 | * and s is the end of it | |
3381 | * tmpbuf is a copy of it | |
3382 | */ | |
3383 | ||
a0d0e21e | 3384 | if (*start == '$') { |
3ef1310e RGS |
3385 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
3386 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 3387 | return 0; |
5db06880 NC |
3388 | #ifdef PERL_MAD |
3389 | len = start - SvPVX(PL_linestr); | |
3390 | #endif | |
29595ff2 | 3391 | s = PEEKSPACE(s); |
f0092767 | 3392 | #ifdef PERL_MAD |
5db06880 NC |
3393 | start = SvPVX(PL_linestr) + len; |
3394 | #endif | |
3280af22 NIS |
3395 | PL_bufptr = start; |
3396 | PL_expect = XREF; | |
a0d0e21e LW |
3397 | return *s == '(' ? FUNCMETH : METHOD; |
3398 | } | |
5458a98a | 3399 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
3400 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
3401 | len -= 2; | |
3402 | tmpbuf[len] = '\0'; | |
5db06880 NC |
3403 | #ifdef PERL_MAD |
3404 | soff = s - SvPVX(PL_linestr); | |
3405 | #endif | |
c3e0f903 GS |
3406 | goto bare_package; |
3407 | } | |
90e5519e | 3408 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 3409 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
3410 | return 0; |
3411 | /* filehandle or package name makes it a method */ | |
da51bb9b | 3412 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
3413 | #ifdef PERL_MAD |
3414 | soff = s - SvPVX(PL_linestr); | |
3415 | #endif | |
29595ff2 | 3416 | s = PEEKSPACE(s); |
3280af22 | 3417 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 3418 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 3419 | bare_package: |
cd81e915 | 3420 | start_force(PL_curforce); |
9ded7720 | 3421 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
64142370 | 3422 | S_newSV_maybe_utf8(aTHX_ tmpbuf, len)); |
9ded7720 | 3423 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
3424 | if (PL_madskills) |
3425 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 3426 | PL_expect = XTERM; |
a0d0e21e | 3427 | force_next(WORD); |
3280af22 | 3428 | PL_bufptr = s; |
5db06880 NC |
3429 | #ifdef PERL_MAD |
3430 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
3431 | #endif | |
a0d0e21e LW |
3432 | return *s == '(' ? FUNCMETH : METHOD; |
3433 | } | |
3434 | } | |
3435 | return 0; | |
3436 | } | |
3437 | ||
16d20bd9 | 3438 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 3439 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
3440 | * Note that the filter function only applies to the current source file |
3441 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
3442 | * | |
3443 | * The datasv parameter (which may be NULL) can be used to pass | |
3444 | * private data to this instance of the filter. The filter function | |
3445 | * can recover the SV using the FILTER_DATA macro and use it to | |
3446 | * store private buffers and state information. | |
3447 | * | |
3448 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 3449 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 3450 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
3451 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
3452 | * private use must be set using malloc'd pointers. | |
3453 | */ | |
16d20bd9 AD |
3454 | |
3455 | SV * | |
864dbfa3 | 3456 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 3457 | { |
97aff369 | 3458 | dVAR; |
f4c556ac | 3459 | if (!funcp) |
a0714e2c | 3460 | return NULL; |
f4c556ac | 3461 | |
5486870f DM |
3462 | if (!PL_parser) |
3463 | return NULL; | |
3464 | ||
3280af22 NIS |
3465 | if (!PL_rsfp_filters) |
3466 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 3467 | if (!datasv) |
561b68a9 | 3468 | datasv = newSV(0); |
862a34c6 | 3469 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 3470 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 3471 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 3472 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
3473 | FPTR2DPTR(void *, IoANY(datasv)), |
3474 | SvPV_nolen(datasv))); | |
3280af22 NIS |
3475 | av_unshift(PL_rsfp_filters, 1); |
3476 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
3477 | return(datasv); |
3478 | } | |
4e553d73 | 3479 | |
16d20bd9 AD |
3480 | |
3481 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 3482 | void |
864dbfa3 | 3483 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 3484 | { |
97aff369 | 3485 | dVAR; |
e0c19803 | 3486 | SV *datasv; |
24801a4b | 3487 | |
7918f24d NC |
3488 | PERL_ARGS_ASSERT_FILTER_DEL; |
3489 | ||
33073adb | 3490 | #ifdef DEBUGGING |
55662e27 JH |
3491 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
3492 | FPTR2DPTR(void*, funcp))); | |
33073adb | 3493 | #endif |
5486870f | 3494 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
3495 | return; |
3496 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 3497 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 3498 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 3499 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 3500 | IoANY(datasv) = (void *)NULL; |
3280af22 | 3501 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 3502 | |
16d20bd9 AD |
3503 | return; |
3504 | } | |
3505 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 3506 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
3507 | } |
3508 | ||
3509 | ||
1de9afcd RGS |
3510 | /* Invoke the idxth filter function for the current rsfp. */ |
3511 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 3512 | I32 |
864dbfa3 | 3513 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 3514 | { |
97aff369 | 3515 | dVAR; |
16d20bd9 AD |
3516 | filter_t funcp; |
3517 | SV *datasv = NULL; | |
f482118e NC |
3518 | /* This API is bad. It should have been using unsigned int for maxlen. |
3519 | Not sure if we want to change the API, but if not we should sanity | |
3520 | check the value here. */ | |
39cd7a59 NC |
3521 | const unsigned int correct_length |
3522 | = maxlen < 0 ? | |
3523 | #ifdef PERL_MICRO | |
3524 | 0x7FFFFFFF | |
3525 | #else | |
3526 | INT_MAX | |
3527 | #endif | |
3528 | : maxlen; | |
e50aee73 | 3529 | |
7918f24d NC |
3530 | PERL_ARGS_ASSERT_FILTER_READ; |
3531 | ||
5486870f | 3532 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 3533 | return -1; |
1de9afcd | 3534 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
3535 | /* Provide a default input filter to make life easy. */ |
3536 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
3537 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3538 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 3539 | if (correct_length) { |
16d20bd9 AD |
3540 | /* Want a block */ |
3541 | int len ; | |
f54cb97a | 3542 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
3543 | |
3544 | /* ensure buf_sv is large enough */ | |
881d8f0a | 3545 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length + 1)) ; |
f482118e NC |
3546 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, |
3547 | correct_length)) <= 0) { | |
3280af22 | 3548 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
3549 | return -1; /* error */ |
3550 | else | |
3551 | return 0 ; /* end of file */ | |
3552 | } | |
16d20bd9 | 3553 | SvCUR_set(buf_sv, old_len + len) ; |
881d8f0a | 3554 | SvPVX(buf_sv)[old_len + len] = '\0'; |
16d20bd9 AD |
3555 | } else { |
3556 | /* Want a line */ | |
3280af22 NIS |
3557 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
3558 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
3559 | return -1; /* error */ |
3560 | else | |
3561 | return 0 ; /* end of file */ | |
3562 | } | |
16d20bd9 AD |
3563 | } |
3564 | return SvCUR(buf_sv); | |
3565 | } | |
3566 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 3567 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
3568 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3569 | "filter_read %d: skipped (filter deleted)\n", | |
3570 | idx)); | |
f482118e | 3571 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
3572 | } |
3573 | /* Get function pointer hidden within datasv */ | |
8141890a | 3574 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
3575 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3576 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 3577 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
3578 | /* Call function. The function is expected to */ |
3579 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 3580 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 3581 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
3582 | } |
3583 | ||
76e3520e | 3584 | STATIC char * |
5cc814fd | 3585 | S_filter_gets(pTHX_ register SV *sv, STRLEN append) |
16d20bd9 | 3586 | { |
97aff369 | 3587 | dVAR; |
7918f24d NC |
3588 | |
3589 | PERL_ARGS_ASSERT_FILTER_GETS; | |
3590 | ||
c39cd008 | 3591 | #ifdef PERL_CR_FILTER |
3280af22 | 3592 | if (!PL_rsfp_filters) { |
c39cd008 | 3593 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
3594 | } |
3595 | #endif | |
3280af22 | 3596 | if (PL_rsfp_filters) { |
55497cff | 3597 | if (!append) |
3598 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
3599 | if (FILTER_READ(0, sv, 0) > 0) |
3600 | return ( SvPVX(sv) ) ; | |
3601 | else | |
bd61b366 | 3602 | return NULL ; |
16d20bd9 | 3603 | } |
9d116dd7 | 3604 | else |
5cc814fd | 3605 | return (sv_gets(sv, PL_rsfp, append)); |
a0d0e21e LW |
3606 | } |
3607 | ||
01ec43d0 | 3608 | STATIC HV * |
9bde8eb0 | 3609 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 3610 | { |
97aff369 | 3611 | dVAR; |
def3634b GS |
3612 | GV *gv; |
3613 | ||
7918f24d NC |
3614 | PERL_ARGS_ASSERT_FIND_IN_MY_STASH; |
3615 | ||
01ec43d0 | 3616 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
3617 | return PL_curstash; |
3618 | ||
3619 | if (len > 2 && | |
3620 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 3621 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
3622 | { |
3623 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
3624 | } |
3625 | ||
3626 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
3627 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
3628 | if (gv && GvCV(gv)) { | |
3629 | SV * const sv = cv_const_sv(GvCV(gv)); | |
3630 | if (sv) | |
9bde8eb0 | 3631 | pkgname = SvPV_const(sv, len); |
def3634b GS |
3632 | } |
3633 | ||
9bde8eb0 | 3634 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 3635 | } |
a0d0e21e | 3636 | |
e3f73d4e RGS |
3637 | /* |
3638 | * S_readpipe_override | |
3639 | * Check whether readpipe() is overriden, and generates the appropriate | |
3640 | * optree, provided sublex_start() is called afterwards. | |
3641 | */ | |
3642 | STATIC void | |
1d51329b | 3643 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
3644 | { |
3645 | GV **gvp; | |
3646 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 3647 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
3648 | if ((gv_readpipe |
3649 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
3650 | || | |
3651 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 3652 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
3653 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
3654 | { | |
3655 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3656 | append_elem(OP_LIST, | |
3657 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
3658 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
3659 | } | |
e3f73d4e RGS |
3660 | } |
3661 | ||
5db06880 NC |
3662 | #ifdef PERL_MAD |
3663 | /* | |
3664 | * Perl_madlex | |
3665 | * The intent of this yylex wrapper is to minimize the changes to the | |
3666 | * tokener when we aren't interested in collecting madprops. It remains | |
3667 | * to be seen how successful this strategy will be... | |
3668 | */ | |
3669 | ||
3670 | int | |
3671 | Perl_madlex(pTHX) | |
3672 | { | |
3673 | int optype; | |
3674 | char *s = PL_bufptr; | |
3675 | ||
cd81e915 NC |
3676 | /* make sure PL_thiswhite is initialized */ |
3677 | PL_thiswhite = 0; | |
3678 | PL_thismad = 0; | |
5db06880 | 3679 | |
cd81e915 | 3680 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
3681 | if (PL_pending_ident) |
3682 | return S_pending_ident(aTHX); | |
3683 | ||
3684 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3685 | if (!PL_lasttoke && PL_nextwhite) { |
3686 | PL_thiswhite = PL_nextwhite; | |
3687 | PL_nextwhite = 0; | |
5db06880 NC |
3688 | } |
3689 | ||
3690 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3691 | PL_realtokenstart = -1; |
3692 | PL_thistoken = 0; | |
5db06880 NC |
3693 | optype = yylex(); |
3694 | s = PL_bufptr; | |
cd81e915 | 3695 | assert(PL_curforce < 0); |
5db06880 | 3696 | |
cd81e915 NC |
3697 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3698 | if (!PL_thistoken) { | |
3699 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3700 | PL_thistoken = newSVpvs(""); |
5db06880 | 3701 | else { |
c35e046a | 3702 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3703 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3704 | } |
3705 | } | |
cd81e915 NC |
3706 | if (PL_thismad) /* install head */ |
3707 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3708 | } |
3709 | ||
3710 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3711 | if (optype == ')' && PL_endwhite) { |
3712 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3713 | } |
3714 | ||
cd81e915 | 3715 | if (!PL_thismad) { |
5db06880 NC |
3716 | |
3717 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3718 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3719 | sv_free(PL_thistoken); | |
3720 | PL_thistoken = 0; | |
5db06880 NC |
3721 | return 0; |
3722 | } | |
3723 | ||
3724 | /* put off final whitespace till peg */ | |
3725 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
3726 | PL_nextwhite = PL_thiswhite; |
3727 | PL_thiswhite = 0; | |
5db06880 | 3728 | } |
cd81e915 NC |
3729 | else if (PL_thisopen) { |
3730 | CURMAD('q', PL_thisopen); | |
3731 | if (PL_thistoken) | |
3732 | sv_free(PL_thistoken); | |
3733 | PL_thistoken = 0; | |
5db06880 NC |
3734 | } |
3735 | else { | |
3736 | /* Store actual token text as madprop X */ | |
cd81e915 | 3737 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3738 | } |
3739 | ||
cd81e915 | 3740 | if (PL_thiswhite) { |
5db06880 | 3741 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3742 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3743 | } |
3744 | ||
cd81e915 | 3745 | if (PL_thisstuff) { |
5db06880 | 3746 | /* add quoted material as madprop = */ |
cd81e915 | 3747 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3748 | } |
3749 | ||
cd81e915 | 3750 | if (PL_thisclose) { |
5db06880 | 3751 | /* add terminating quote as madprop Q */ |
cd81e915 | 3752 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3753 | } |
3754 | } | |
3755 | ||
3756 | /* special processing based on optype */ | |
3757 | ||
3758 | switch (optype) { | |
3759 | ||
3760 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3761 | case WORD: | |
3762 | case METHOD: | |
3763 | case FUNCMETH: | |
3764 | case THING: | |
3765 | case PMFUNC: | |
3766 | case PRIVATEREF: | |
3767 | case FUNC0SUB: | |
3768 | case UNIOPSUB: | |
3769 | case LSTOPSUB: | |
6154021b RGS |
3770 | if (pl_yylval.opval) |
3771 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 3772 | PL_thismad = 0; |
5db06880 NC |
3773 | return optype; |
3774 | ||
3775 | /* fake EOF */ | |
3776 | case 0: | |
3777 | optype = PEG; | |
cd81e915 NC |
3778 | if (PL_endwhite) { |
3779 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3780 | PL_endwhite = 0; | |
5db06880 NC |
3781 | } |
3782 | break; | |
3783 | ||
3784 | case ']': | |
3785 | case '}': | |
cd81e915 | 3786 | if (PL_faketokens) |
5db06880 NC |
3787 | break; |
3788 | /* remember any fake bracket that lexer is about to discard */ | |
3789 | if (PL_lex_brackets == 1 && | |
3790 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3791 | { | |
3792 | s = PL_bufptr; | |
3793 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3794 | s++; | |
3795 | if (*s == '}') { | |
cd81e915 NC |
3796 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3797 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3798 | PL_thiswhite = 0; | |
5db06880 NC |
3799 | PL_bufptr = s - 1; |
3800 | break; /* don't bother looking for trailing comment */ | |
3801 | } | |
3802 | else | |
3803 | s = PL_bufptr; | |
3804 | } | |
3805 | if (optype == ']') | |
3806 | break; | |
3807 | /* FALLTHROUGH */ | |
3808 | ||
3809 | /* attach a trailing comment to its statement instead of next token */ | |
3810 | case ';': | |
cd81e915 | 3811 | if (PL_faketokens) |
5db06880 NC |
3812 | break; |
3813 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3814 | s = PL_bufptr; | |
3815 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3816 | s++; | |
3817 | if (*s == '\n' || *s == '#') { | |
3818 | while (s < PL_bufend && *s != '\n') | |
3819 | s++; | |
3820 | if (s < PL_bufend) | |
3821 | s++; | |
cd81e915 NC |
3822 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3823 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3824 | PL_thiswhite = 0; | |
5db06880 NC |
3825 | PL_bufptr = s; |
3826 | } | |
3827 | } | |
3828 | break; | |
3829 | ||
3830 | /* pval */ | |
3831 | case LABEL: | |
3832 | break; | |
3833 | ||
3834 | /* ival */ | |
3835 | default: | |
3836 | break; | |
3837 | ||
3838 | } | |
3839 | ||
3840 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 3841 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 3842 | PL_thismad = 0; |
5db06880 NC |
3843 | return optype; |
3844 | } | |
3845 | #endif | |
3846 | ||
468aa647 | 3847 | STATIC char * |
cc6ed77d | 3848 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3849 | dVAR; |
7918f24d NC |
3850 | |
3851 | PERL_ARGS_ASSERT_TOKENIZE_USE; | |
3852 | ||
468aa647 RGS |
3853 | if (PL_expect != XSTATE) |
3854 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3855 | is_use ? "use" : "no")); | |
29595ff2 | 3856 | s = SKIPSPACE1(s); |
468aa647 RGS |
3857 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3858 | s = force_version(s, TRUE); | |
17c59fdf VP |
3859 | if (*s == ';' || *s == '}' |
3860 | || (s = SKIPSPACE1(s), (*s == ';' || *s == '}'))) { | |
cd81e915 | 3861 | start_force(PL_curforce); |
9ded7720 | 3862 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3863 | force_next(WORD); |
3864 | } | |
3865 | else if (*s == 'v') { | |
3866 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3867 | s = force_version(s, FALSE); | |
3868 | } | |
3869 | } | |
3870 | else { | |
3871 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3872 | s = force_version(s, FALSE); | |
3873 | } | |
6154021b | 3874 | pl_yylval.ival = is_use; |
468aa647 RGS |
3875 | return s; |
3876 | } | |
748a9306 | 3877 | #ifdef DEBUGGING |
27da23d5 | 3878 | static const char* const exp_name[] = |
09bef843 | 3879 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3880 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3881 | }; |
748a9306 | 3882 | #endif |
463ee0b2 | 3883 | |
02aa26ce NT |
3884 | /* |
3885 | yylex | |
3886 | ||
3887 | Works out what to call the token just pulled out of the input | |
3888 | stream. The yacc parser takes care of taking the ops we return and | |
3889 | stitching them into a tree. | |
3890 | ||
3891 | Returns: | |
3892 | PRIVATEREF | |
3893 | ||
3894 | Structure: | |
3895 | if read an identifier | |
3896 | if we're in a my declaration | |
3897 | croak if they tried to say my($foo::bar) | |
3898 | build the ops for a my() declaration | |
3899 | if it's an access to a my() variable | |
3900 | are we in a sort block? | |
3901 | croak if my($a); $a <=> $b | |
3902 | build ops for access to a my() variable | |
3903 | if in a dq string, and they've said @foo and we can't find @foo | |
3904 | croak | |
3905 | build ops for a bareword | |
3906 | if we already built the token before, use it. | |
3907 | */ | |
3908 | ||
20141f0e | 3909 | |
dba4d153 JH |
3910 | #ifdef __SC__ |
3911 | #pragma segment Perl_yylex | |
3912 | #endif | |
dba4d153 | 3913 | int |
dba4d153 | 3914 | Perl_yylex(pTHX) |
20141f0e | 3915 | { |
97aff369 | 3916 | dVAR; |
3afc138a | 3917 | register char *s = PL_bufptr; |
378cc40b | 3918 | register char *d; |
463ee0b2 | 3919 | STRLEN len; |
aa7440fb | 3920 | bool bof = FALSE; |
580561a3 | 3921 | U32 fake_eof = 0; |
a687059c | 3922 | |
10edeb5d JH |
3923 | /* orig_keyword, gvp, and gv are initialized here because |
3924 | * jump to the label just_a_word_zero can bypass their | |
3925 | * initialization later. */ | |
3926 | I32 orig_keyword = 0; | |
3927 | GV *gv = NULL; | |
3928 | GV **gvp = NULL; | |
3929 | ||
bbf60fe6 | 3930 | DEBUG_T( { |
396482e1 | 3931 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3932 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3933 | (IV)CopLINE(PL_curcop), | |
3934 | lex_state_names[PL_lex_state], | |
3935 | exp_name[PL_expect], | |
3936 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3937 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3938 | } ); |
02aa26ce | 3939 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3940 | if (PL_pending_ident) |
bbf60fe6 | 3941 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3942 | |
02aa26ce NT |
3943 | /* no identifier pending identification */ |
3944 | ||
3280af22 | 3945 | switch (PL_lex_state) { |
79072805 LW |
3946 | #ifdef COMMENTARY |
3947 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3948 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3949 | break; | |
3950 | #endif | |
3951 | ||
09bef843 | 3952 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3953 | case LEX_KNOWNEXT: |
5db06880 NC |
3954 | #ifdef PERL_MAD |
3955 | PL_lasttoke--; | |
6154021b | 3956 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 3957 | if (PL_madskills) { |
cd81e915 | 3958 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3959 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 | 3960 | if (PL_thismad && PL_thismad->mad_key == '_') { |
daba3364 | 3961 | PL_thiswhite = MUTABLE_SV(PL_thismad->mad_val); |
cd81e915 NC |
3962 | PL_thismad->mad_val = 0; |
3963 | mad_free(PL_thismad); | |
3964 | PL_thismad = 0; | |
5db06880 NC |
3965 | } |
3966 | } | |
3967 | if (!PL_lasttoke) { | |
3968 | PL_lex_state = PL_lex_defer; | |
3969 | PL_expect = PL_lex_expect; | |
3970 | PL_lex_defer = LEX_NORMAL; | |
3971 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3972 | return yylex(); | |
3973 | } | |
3974 | #else | |
3280af22 | 3975 | PL_nexttoke--; |
6154021b | 3976 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3977 | if (!PL_nexttoke) { |
3978 | PL_lex_state = PL_lex_defer; | |
3979 | PL_expect = PL_lex_expect; | |
3980 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3981 | } |
5db06880 NC |
3982 | #endif |
3983 | #ifdef PERL_MAD | |
3984 | /* FIXME - can these be merged? */ | |
3985 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3986 | #else | |
bbf60fe6 | 3987 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3988 | #endif |
79072805 | 3989 | |
02aa26ce | 3990 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3991 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3992 | */ |
79072805 LW |
3993 | case LEX_INTERPCASEMOD: |
3994 | #ifdef DEBUGGING | |
3280af22 | 3995 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3996 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3997 | #endif |
02aa26ce | 3998 | /* handle \E or end of string */ |
3280af22 | 3999 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 4000 | /* if at a \E */ |
3280af22 | 4001 | if (PL_lex_casemods) { |
f54cb97a | 4002 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 4003 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 4004 | |
3792a11b NC |
4005 | if (PL_bufptr != PL_bufend |
4006 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
4007 | PL_bufptr += 2; |
4008 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4009 | #ifdef PERL_MAD |
4010 | if (PL_madskills) | |
6b29d1f5 | 4011 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 4012 | #endif |
a0d0e21e | 4013 | } |
bbf60fe6 | 4014 | return REPORT(')'); |
79072805 | 4015 | } |
5db06880 NC |
4016 | #ifdef PERL_MAD |
4017 | while (PL_bufptr != PL_bufend && | |
4018 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 4019 | if (!PL_thiswhite) |
6b29d1f5 | 4020 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4021 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
4022 | PL_bufptr += 2; |
4023 | } | |
4024 | #else | |
3280af22 NIS |
4025 | if (PL_bufptr != PL_bufend) |
4026 | PL_bufptr += 2; | |
5db06880 | 4027 | #endif |
3280af22 | 4028 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 4029 | return yylex(); |
79072805 LW |
4030 | } |
4031 | else { | |
607df283 | 4032 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4033 | "### Saw case modifier\n"); }); |
3280af22 | 4034 | s = PL_bufptr + 1; |
6e909404 | 4035 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 4036 | #ifdef PERL_MAD |
cd81e915 | 4037 | if (!PL_thiswhite) |
6b29d1f5 | 4038 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4039 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 4040 | #endif |
89122651 | 4041 | PL_bufptr = s + 3; |
6e909404 JH |
4042 | PL_lex_state = LEX_INTERPCONCAT; |
4043 | return yylex(); | |
a0d0e21e | 4044 | } |
6e909404 | 4045 | else { |
90771dc0 | 4046 | I32 tmp; |
5db06880 NC |
4047 | if (!PL_madskills) /* when just compiling don't need correct */ |
4048 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
4049 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 4050 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
4051 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
4052 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 4053 | return REPORT(')'); |
6e909404 JH |
4054 | } |
4055 | if (PL_lex_casemods > 10) | |
4056 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
4057 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
4058 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
4059 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 4060 | start_force(PL_curforce); |
9ded7720 | 4061 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 4062 | force_next('('); |
cd81e915 | 4063 | start_force(PL_curforce); |
6e909404 | 4064 | if (*s == 'l') |
9ded7720 | 4065 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 4066 | else if (*s == 'u') |
9ded7720 | 4067 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 4068 | else if (*s == 'L') |
9ded7720 | 4069 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 4070 | else if (*s == 'U') |
9ded7720 | 4071 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 4072 | else if (*s == 'Q') |
9ded7720 | 4073 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
4074 | else |
4075 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 4076 | if (PL_madskills) { |
a5849ce5 NC |
4077 | SV* const tmpsv = newSVpvs("\\ "); |
4078 | /* replace the space with the character we want to escape | |
4079 | */ | |
4080 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
4081 | curmad('_', tmpsv); |
4082 | } | |
6e909404 | 4083 | PL_bufptr = s + 1; |
a0d0e21e | 4084 | } |
79072805 | 4085 | force_next(FUNC); |
3280af22 NIS |
4086 | if (PL_lex_starts) { |
4087 | s = PL_bufptr; | |
4088 | PL_lex_starts = 0; | |
5db06880 NC |
4089 | #ifdef PERL_MAD |
4090 | if (PL_madskills) { | |
cd81e915 NC |
4091 | if (PL_thistoken) |
4092 | sv_free(PL_thistoken); | |
6b29d1f5 | 4093 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4094 | } |
4095 | #endif | |
131b3ad0 DM |
4096 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4097 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
4098 | OPERATOR(','); | |
4099 | else | |
4100 | Aop(OP_CONCAT); | |
79072805 LW |
4101 | } |
4102 | else | |
cea2e8a9 | 4103 | return yylex(); |
79072805 LW |
4104 | } |
4105 | ||
55497cff | 4106 | case LEX_INTERPPUSH: |
bbf60fe6 | 4107 | return REPORT(sublex_push()); |
55497cff | 4108 | |
79072805 | 4109 | case LEX_INTERPSTART: |
3280af22 | 4110 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4111 | return REPORT(sublex_done()); |
607df283 | 4112 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4113 | "### Interpolated variable\n"); }); |
3280af22 NIS |
4114 | PL_expect = XTERM; |
4115 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
4116 | PL_lex_state = LEX_INTERPNORMAL; | |
4117 | if (PL_lex_dojoin) { | |
cd81e915 | 4118 | start_force(PL_curforce); |
9ded7720 | 4119 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4120 | force_next(','); |
cd81e915 | 4121 | start_force(PL_curforce); |
a0d0e21e | 4122 | force_ident("\"", '$'); |
cd81e915 | 4123 | start_force(PL_curforce); |
9ded7720 | 4124 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4125 | force_next('$'); |
cd81e915 | 4126 | start_force(PL_curforce); |
9ded7720 | 4127 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4128 | force_next('('); |
cd81e915 | 4129 | start_force(PL_curforce); |
9ded7720 | 4130 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
4131 | force_next(FUNC); |
4132 | } | |
3280af22 NIS |
4133 | if (PL_lex_starts++) { |
4134 | s = PL_bufptr; | |
5db06880 NC |
4135 | #ifdef PERL_MAD |
4136 | if (PL_madskills) { | |
cd81e915 NC |
4137 | if (PL_thistoken) |
4138 | sv_free(PL_thistoken); | |
6b29d1f5 | 4139 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4140 | } |
4141 | #endif | |
131b3ad0 DM |
4142 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4143 | if (!PL_lex_casemods && PL_lex_inpat) | |
4144 | OPERATOR(','); | |
4145 | else | |
4146 | Aop(OP_CONCAT); | |
79072805 | 4147 | } |
cea2e8a9 | 4148 | return yylex(); |
79072805 LW |
4149 | |
4150 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
4151 | if (intuit_more(PL_bufptr)) { |
4152 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
4153 | break; |
4154 | } | |
4155 | /* FALL THROUGH */ | |
4156 | ||
4157 | case LEX_INTERPEND: | |
3280af22 NIS |
4158 | if (PL_lex_dojoin) { |
4159 | PL_lex_dojoin = FALSE; | |
4160 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4161 | #ifdef PERL_MAD |
4162 | if (PL_madskills) { | |
cd81e915 NC |
4163 | if (PL_thistoken) |
4164 | sv_free(PL_thistoken); | |
6b29d1f5 | 4165 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4166 | } |
4167 | #endif | |
bbf60fe6 | 4168 | return REPORT(')'); |
79072805 | 4169 | } |
43a16006 | 4170 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 4171 | && SvEVALED(PL_lex_repl)) |
43a16006 | 4172 | { |
e9fa98b2 | 4173 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 4174 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 4175 | PL_lex_repl = NULL; |
e9fa98b2 | 4176 | } |
79072805 LW |
4177 | /* FALLTHROUGH */ |
4178 | case LEX_INTERPCONCAT: | |
4179 | #ifdef DEBUGGING | |
3280af22 | 4180 | if (PL_lex_brackets) |
cea2e8a9 | 4181 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 4182 | #endif |
3280af22 | 4183 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4184 | return REPORT(sublex_done()); |
79072805 | 4185 | |
3280af22 NIS |
4186 | if (SvIVX(PL_linestr) == '\'') { |
4187 | SV *sv = newSVsv(PL_linestr); | |
4188 | if (!PL_lex_inpat) | |
76e3520e | 4189 | sv = tokeq(sv); |
3280af22 | 4190 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 4191 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 4192 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 4193 | s = PL_bufend; |
79072805 LW |
4194 | } |
4195 | else { | |
3280af22 | 4196 | s = scan_const(PL_bufptr); |
79072805 | 4197 | if (*s == '\\') |
3280af22 | 4198 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 4199 | else |
3280af22 | 4200 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
4201 | } |
4202 | ||
3280af22 | 4203 | if (s != PL_bufptr) { |
cd81e915 | 4204 | start_force(PL_curforce); |
5db06880 NC |
4205 | if (PL_madskills) { |
4206 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
4207 | } | |
6154021b | 4208 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 4209 | PL_expect = XTERM; |
79072805 | 4210 | force_next(THING); |
131b3ad0 | 4211 | if (PL_lex_starts++) { |
5db06880 NC |
4212 | #ifdef PERL_MAD |
4213 | if (PL_madskills) { | |
cd81e915 NC |
4214 | if (PL_thistoken) |
4215 | sv_free(PL_thistoken); | |
6b29d1f5 | 4216 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4217 | } |
4218 | #endif | |
131b3ad0 DM |
4219 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4220 | if (!PL_lex_casemods && PL_lex_inpat) | |
4221 | OPERATOR(','); | |
4222 | else | |
4223 | Aop(OP_CONCAT); | |
4224 | } | |
79072805 | 4225 | else { |
3280af22 | 4226 | PL_bufptr = s; |
cea2e8a9 | 4227 | return yylex(); |
79072805 LW |
4228 | } |
4229 | } | |
4230 | ||
cea2e8a9 | 4231 | return yylex(); |
a0d0e21e | 4232 | case LEX_FORMLINE: |
3280af22 NIS |
4233 | PL_lex_state = LEX_NORMAL; |
4234 | s = scan_formline(PL_bufptr); | |
4235 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
4236 | goto rightbracket; |
4237 | OPERATOR(';'); | |
79072805 LW |
4238 | } |
4239 | ||
3280af22 NIS |
4240 | s = PL_bufptr; |
4241 | PL_oldoldbufptr = PL_oldbufptr; | |
4242 | PL_oldbufptr = s; | |
463ee0b2 LW |
4243 | |
4244 | retry: | |
5db06880 | 4245 | #ifdef PERL_MAD |
cd81e915 NC |
4246 | if (PL_thistoken) { |
4247 | sv_free(PL_thistoken); | |
4248 | PL_thistoken = 0; | |
5db06880 | 4249 | } |
cd81e915 | 4250 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 4251 | #endif |
378cc40b LW |
4252 | switch (*s) { |
4253 | default: | |
7e2040f0 | 4254 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 4255 | goto keylookup; |
b1fc3636 CJ |
4256 | { |
4257 | unsigned char c = *s; | |
4258 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); | |
4259 | if (len > UNRECOGNIZED_PRECEDE_COUNT) { | |
4260 | d = UTF ? (char *) Perl_utf8_hop(aTHX_ (U8 *) s, -UNRECOGNIZED_PRECEDE_COUNT) : s - UNRECOGNIZED_PRECEDE_COUNT; | |
4261 | } else { | |
4262 | d = PL_linestart; | |
4263 | } | |
4264 | *s = '\0'; | |
4265 | Perl_croak(aTHX_ "Unrecognized character \\x%02X; marked by <-- HERE after %s<-- HERE near column %d", c, d, (int) len + 1); | |
4266 | } | |
e929a76b LW |
4267 | case 4: |
4268 | case 26: | |
4269 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 4270 | case 0: |
5db06880 NC |
4271 | #ifdef PERL_MAD |
4272 | if (PL_madskills) | |
cd81e915 | 4273 | PL_faketokens = 0; |
5db06880 | 4274 | #endif |
3280af22 NIS |
4275 | if (!PL_rsfp) { |
4276 | PL_last_uni = 0; | |
4277 | PL_last_lop = 0; | |
c5ee2135 | 4278 | if (PL_lex_brackets) { |
10edeb5d JH |
4279 | yyerror((const char *) |
4280 | (PL_lex_formbrack | |
4281 | ? "Format not terminated" | |
4282 | : "Missing right curly or square bracket")); | |
c5ee2135 | 4283 | } |
4e553d73 | 4284 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 4285 | "### Tokener got EOF\n"); |
5f80b19c | 4286 | } ); |
79072805 | 4287 | TOKEN(0); |
463ee0b2 | 4288 | } |
3280af22 | 4289 | if (s++ < PL_bufend) |
a687059c | 4290 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
4291 | PL_last_uni = 0; |
4292 | PL_last_lop = 0; | |
4293 | if (!PL_in_eval && !PL_preambled) { | |
4294 | PL_preambled = TRUE; | |
5db06880 NC |
4295 | #ifdef PERL_MAD |
4296 | if (PL_madskills) | |
cd81e915 | 4297 | PL_faketokens = 1; |
5db06880 | 4298 | #endif |
5ab7ff98 NC |
4299 | if (PL_perldb) { |
4300 | /* Generate a string of Perl code to load the debugger. | |
4301 | * If PERL5DB is set, it will return the contents of that, | |
4302 | * otherwise a compile-time require of perl5db.pl. */ | |
4303 | ||
4304 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
4305 | ||
4306 | if (pdb) { | |
4307 | sv_setpv(PL_linestr, pdb); | |
4308 | sv_catpvs(PL_linestr,";"); | |
4309 | } else { | |
4310 | SETERRNO(0,SS_NORMAL); | |
4311 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
4312 | } | |
4313 | } else | |
4314 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
4315 | if (PL_preambleav) { |
4316 | SV **svp = AvARRAY(PL_preambleav); | |
4317 | SV **const end = svp + AvFILLp(PL_preambleav); | |
4318 | while(svp <= end) { | |
4319 | sv_catsv(PL_linestr, *svp); | |
4320 | ++svp; | |
396482e1 | 4321 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 4322 | } |
daba3364 | 4323 | sv_free(MUTABLE_SV(PL_preambleav)); |
3280af22 | 4324 | PL_preambleav = NULL; |
91b7def8 | 4325 | } |
9f639728 FR |
4326 | if (PL_minus_E) |
4327 | sv_catpvs(PL_linestr, | |
4328 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
3280af22 | 4329 | if (PL_minus_n || PL_minus_p) { |
f0e67a1d | 4330 | sv_catpvs(PL_linestr, "LINE: while (<>) {"/*}*/); |
3280af22 | 4331 | if (PL_minus_l) |
396482e1 | 4332 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 4333 | if (PL_minus_a) { |
3280af22 | 4334 | if (PL_minus_F) { |
3792a11b NC |
4335 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
4336 | || *PL_splitstr == '"') | |
3280af22 | 4337 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 4338 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 4339 | else { |
c8ef6a4b NC |
4340 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
4341 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 4342 | const char *splits = PL_splitstr; |
91d456ae | 4343 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
4344 | do { |
4345 | /* Need to \ \s */ | |
dd374669 AL |
4346 | if (*splits == '\\') |
4347 | sv_catpvn(PL_linestr, splits, 1); | |
4348 | sv_catpvn(PL_linestr, splits, 1); | |
4349 | } while (*splits++); | |
48c4c863 NC |
4350 | /* This loop will embed the trailing NUL of |
4351 | PL_linestr as the last thing it does before | |
4352 | terminating. */ | |
396482e1 | 4353 | sv_catpvs(PL_linestr, ");"); |
54310121 | 4354 | } |
2304df62 AD |
4355 | } |
4356 | else | |
396482e1 | 4357 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 4358 | } |
79072805 | 4359 | } |
396482e1 | 4360 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
4361 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4362 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4363 | PL_last_lop = PL_last_uni = NULL; |
65269a95 | 4364 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 4365 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 4366 | goto retry; |
a687059c | 4367 | } |
e929a76b | 4368 | do { |
580561a3 Z |
4369 | fake_eof = 0; |
4370 | bof = PL_rsfp ? TRUE : FALSE; | |
f0e67a1d | 4371 | if (0) { |
7e28d3af | 4372 | fake_eof: |
f0e67a1d Z |
4373 | fake_eof = LEX_FAKE_EOF; |
4374 | } | |
4375 | PL_bufptr = PL_bufend; | |
17cc9359 | 4376 | CopLINE_inc(PL_curcop); |
f0e67a1d | 4377 | if (!lex_next_chunk(fake_eof)) { |
17cc9359 | 4378 | CopLINE_dec(PL_curcop); |
f0e67a1d Z |
4379 | s = PL_bufptr; |
4380 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
4381 | } | |
17cc9359 | 4382 | CopLINE_dec(PL_curcop); |
5db06880 | 4383 | #ifdef PERL_MAD |
f0e67a1d | 4384 | if (!PL_rsfp) |
cd81e915 | 4385 | PL_realtokenstart = -1; |
5db06880 | 4386 | #endif |
f0e67a1d | 4387 | s = PL_bufptr; |
7aa207d6 JH |
4388 | /* If it looks like the start of a BOM or raw UTF-16, |
4389 | * check if it in fact is. */ | |
580561a3 | 4390 | if (bof && PL_rsfp && |
7aa207d6 JH |
4391 | (*s == 0 || |
4392 | *(U8*)s == 0xEF || | |
4393 | *(U8*)s >= 0xFE || | |
4394 | s[1] == 0)) { | |
eb160463 | 4395 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 4396 | if (bof) { |
3280af22 | 4397 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 4398 | s = swallow_bom((U8*)s); |
e929a76b | 4399 | } |
378cc40b | 4400 | } |
3280af22 | 4401 | if (PL_doextract) { |
a0d0e21e | 4402 | /* Incest with pod. */ |
5db06880 NC |
4403 | #ifdef PERL_MAD |
4404 | if (PL_madskills) | |
cd81e915 | 4405 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 4406 | #endif |
01a57ef7 | 4407 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
76f68e9b | 4408 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4409 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4410 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4411 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4412 | PL_doextract = FALSE; |
a0d0e21e | 4413 | } |
4e553d73 | 4414 | } |
85613cab Z |
4415 | if (PL_rsfp) |
4416 | incline(s); | |
3280af22 NIS |
4417 | } while (PL_doextract); |
4418 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3280af22 | 4419 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 4420 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 4421 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 4422 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 4423 | s++; |
a0d0e21e | 4424 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 4425 | s++; |
5db06880 NC |
4426 | #ifdef PERL_MAD |
4427 | if (PL_madskills) | |
cd81e915 | 4428 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 4429 | #endif |
bd61b366 | 4430 | d = NULL; |
3280af22 | 4431 | if (!PL_in_eval) { |
44a8e56a | 4432 | if (*s == '#' && *(s+1) == '!') |
4433 | d = s + 2; | |
4434 | #ifdef ALTERNATE_SHEBANG | |
4435 | else { | |
bfed75c6 | 4436 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 4437 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
4438 | d = s + (sizeof(as) - 1); | |
4439 | } | |
4440 | #endif /* ALTERNATE_SHEBANG */ | |
4441 | } | |
4442 | if (d) { | |
b8378b72 | 4443 | char *ipath; |
774d564b | 4444 | char *ipathend; |
b8378b72 | 4445 | |
774d564b | 4446 | while (isSPACE(*d)) |
b8378b72 CS |
4447 | d++; |
4448 | ipath = d; | |
774d564b | 4449 | while (*d && !isSPACE(*d)) |
4450 | d++; | |
4451 | ipathend = d; | |
4452 | ||
4453 | #ifdef ARG_ZERO_IS_SCRIPT | |
4454 | if (ipathend > ipath) { | |
4455 | /* | |
4456 | * HP-UX (at least) sets argv[0] to the script name, | |
4457 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
4458 | * at least, set argv[0] to the basename of the Perl | |
4459 | * interpreter. So, having found "#!", we'll set it right. | |
4460 | */ | |
fafc274c NC |
4461 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
4462 | SVt_PV)); /* $^X */ | |
774d564b | 4463 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 4464 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 4465 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 4466 | SvSETMAGIC(x); |
4467 | } | |
556c1dec JH |
4468 | else { |
4469 | STRLEN blen; | |
4470 | STRLEN llen; | |
cfd0369c | 4471 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 4472 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
4473 | if (llen < blen) { |
4474 | bstart += blen - llen; | |
4475 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
4476 | sv_setpvn(x, ipath, ipathend - ipath); | |
4477 | SvSETMAGIC(x); | |
4478 | } | |
4479 | } | |
4480 | } | |
774d564b | 4481 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 4482 | } |
774d564b | 4483 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
4484 | |
4485 | /* | |
4486 | * Look for options. | |
4487 | */ | |
748a9306 | 4488 | d = instr(s,"perl -"); |
84e30d1a | 4489 | if (!d) { |
748a9306 | 4490 | d = instr(s,"perl"); |
84e30d1a GS |
4491 | #if defined(DOSISH) |
4492 | /* avoid getting into infinite loops when shebang | |
4493 | * line contains "Perl" rather than "perl" */ | |
4494 | if (!d) { | |
4495 | for (d = ipathend-4; d >= ipath; --d) { | |
4496 | if ((*d == 'p' || *d == 'P') | |
4497 | && !ibcmp(d, "perl", 4)) | |
4498 | { | |
4499 | break; | |
4500 | } | |
4501 | } | |
4502 | if (d < ipath) | |
bd61b366 | 4503 | d = NULL; |
84e30d1a GS |
4504 | } |
4505 | #endif | |
4506 | } | |
44a8e56a | 4507 | #ifdef ALTERNATE_SHEBANG |
4508 | /* | |
4509 | * If the ALTERNATE_SHEBANG on this system starts with a | |
4510 | * character that can be part of a Perl expression, then if | |
4511 | * we see it but not "perl", we're probably looking at the | |
4512 | * start of Perl code, not a request to hand off to some | |
4513 | * other interpreter. Similarly, if "perl" is there, but | |
4514 | * not in the first 'word' of the line, we assume the line | |
4515 | * contains the start of the Perl program. | |
44a8e56a | 4516 | */ |
4517 | if (d && *s != '#') { | |
f54cb97a | 4518 | const char *c = ipath; |
44a8e56a | 4519 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
4520 | c++; | |
4521 | if (c < d) | |
bd61b366 | 4522 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 4523 | else |
4524 | *s = '#'; /* Don't try to parse shebang line */ | |
4525 | } | |
774d564b | 4526 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 4527 | if (!d && |
44a8e56a | 4528 | *s == '#' && |
774d564b | 4529 | ipathend > ipath && |
3280af22 | 4530 | !PL_minus_c && |
748a9306 | 4531 | !instr(s,"indir") && |
3280af22 | 4532 | instr(PL_origargv[0],"perl")) |
748a9306 | 4533 | { |
27da23d5 | 4534 | dVAR; |
9f68db38 | 4535 | char **newargv; |
9f68db38 | 4536 | |
774d564b | 4537 | *ipathend = '\0'; |
4538 | s = ipathend + 1; | |
3280af22 | 4539 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 4540 | s++; |
3280af22 | 4541 | if (s < PL_bufend) { |
d85f917e | 4542 | Newx(newargv,PL_origargc+3,char*); |
9f68db38 | 4543 | newargv[1] = s; |
3280af22 | 4544 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
4545 | s++; |
4546 | *s = '\0'; | |
3280af22 | 4547 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
4548 | } |
4549 | else | |
3280af22 | 4550 | newargv = PL_origargv; |
774d564b | 4551 | newargv[0] = ipath; |
b35112e7 | 4552 | PERL_FPU_PRE_EXEC |
b4748376 | 4553 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 4554 | PERL_FPU_POST_EXEC |
cea2e8a9 | 4555 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 4556 | } |
748a9306 | 4557 | if (d) { |
c35e046a AL |
4558 | while (*d && !isSPACE(*d)) |
4559 | d++; | |
4560 | while (SPACE_OR_TAB(*d)) | |
4561 | d++; | |
748a9306 LW |
4562 | |
4563 | if (*d++ == '-') { | |
f54cb97a | 4564 | const bool switches_done = PL_doswitches; |
fb993905 GA |
4565 | const U32 oldpdb = PL_perldb; |
4566 | const bool oldn = PL_minus_n; | |
4567 | const bool oldp = PL_minus_p; | |
c7030b81 | 4568 | const char *d1 = d; |
fb993905 | 4569 | |
8cc95fdb | 4570 | do { |
4ba71d51 FC |
4571 | bool baduni = FALSE; |
4572 | if (*d1 == 'C') { | |
bd0ab00d NC |
4573 | const char *d2 = d1 + 1; |
4574 | if (parse_unicode_opts((const char **)&d2) | |
4575 | != PL_unicode) | |
4576 | baduni = TRUE; | |
4ba71d51 FC |
4577 | } |
4578 | if (baduni || *d1 == 'M' || *d1 == 'm') { | |
c7030b81 NC |
4579 | const char * const m = d1; |
4580 | while (*d1 && !isSPACE(*d1)) | |
4581 | d1++; | |
cea2e8a9 | 4582 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 4583 | (int)(d1 - m), m); |
8cc95fdb | 4584 | } |
c7030b81 NC |
4585 | d1 = moreswitches(d1); |
4586 | } while (d1); | |
f0b2cf55 YST |
4587 | if (PL_doswitches && !switches_done) { |
4588 | int argc = PL_origargc; | |
4589 | char **argv = PL_origargv; | |
4590 | do { | |
4591 | argc--,argv++; | |
4592 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
4593 | init_argv_symbols(argc,argv); | |
4594 | } | |
65269a95 | 4595 | if (((PERLDB_LINE || PERLDB_SAVESRC) && !oldpdb) || |
155aba94 | 4596 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) |
b084f20b | 4597 | /* if we have already added "LINE: while (<>) {", |
4598 | we must not do it again */ | |
748a9306 | 4599 | { |
76f68e9b | 4600 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4601 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4602 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4603 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4604 | PL_preambled = FALSE; |
65269a95 | 4605 | if (PERLDB_LINE || PERLDB_SAVESRC) |
3280af22 | 4606 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
4607 | goto retry; |
4608 | } | |
a0d0e21e | 4609 | } |
79072805 | 4610 | } |
9f68db38 | 4611 | } |
79072805 | 4612 | } |
3280af22 NIS |
4613 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4614 | PL_bufptr = s; | |
4615 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4616 | return yylex(); |
ae986130 | 4617 | } |
378cc40b | 4618 | goto retry; |
4fdae800 | 4619 | case '\r': |
6a27c188 | 4620 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 4621 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 4622 | Perl_croak(aTHX_ |
cc507455 | 4623 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 4624 | #endif |
4fdae800 | 4625 | case ' ': case '\t': case '\f': case 013: |
5db06880 | 4626 | #ifdef PERL_MAD |
cd81e915 | 4627 | PL_realtokenstart = -1; |
ac372eb8 RD |
4628 | if (!PL_thiswhite) |
4629 | PL_thiswhite = newSVpvs(""); | |
4630 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 4631 | #endif |
ac372eb8 | 4632 | s++; |
378cc40b | 4633 | goto retry; |
378cc40b | 4634 | case '#': |
e929a76b | 4635 | case '\n': |
5db06880 | 4636 | #ifdef PERL_MAD |
cd81e915 | 4637 | PL_realtokenstart = -1; |
5db06880 | 4638 | if (PL_madskills) |
cd81e915 | 4639 | PL_faketokens = 0; |
5db06880 | 4640 | #endif |
3280af22 | 4641 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
4642 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
4643 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
4644 | CopLINE_dec(PL_curcop); | |
4645 | incline(s); | |
4646 | } | |
5db06880 NC |
4647 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
4648 | s = SKIPSPACE0(s); | |
4649 | if (!PL_in_eval || PL_rsfp) | |
4650 | incline(s); | |
4651 | } | |
4652 | else { | |
4653 | d = s; | |
4654 | while (d < PL_bufend && *d != '\n') | |
4655 | d++; | |
4656 | if (d < PL_bufend) | |
4657 | d++; | |
4658 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4659 | Perl_croak(aTHX_ "panic: input overflow"); | |
4660 | #ifdef PERL_MAD | |
4661 | if (PL_madskills) | |
cd81e915 | 4662 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
4663 | #endif |
4664 | s = d; | |
4665 | incline(s); | |
4666 | } | |
3280af22 NIS |
4667 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4668 | PL_bufptr = s; | |
4669 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4670 | return yylex(); |
a687059c | 4671 | } |
378cc40b | 4672 | } |
a687059c | 4673 | else { |
5db06880 NC |
4674 | #ifdef PERL_MAD |
4675 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
4676 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 4677 | PL_faketokens = 0; |
5db06880 NC |
4678 | s = SKIPSPACE0(s); |
4679 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4680 | } | |
4681 | s = SKIPSPACE0(s); | |
4682 | } | |
4683 | else { | |
4684 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4685 | d = s; | |
4686 | while (d < PL_bufend && *d != '\n') | |
4687 | d++; | |
4688 | if (d < PL_bufend) | |
4689 | d++; | |
4690 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4691 | Perl_croak(aTHX_ "panic: input overflow"); | |
4692 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4693 | if (!PL_thiswhite) |
6b29d1f5 | 4694 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4695 | if (CopLINE(PL_curcop) == 1) { |
76f68e9b | 4696 | sv_setpvs(PL_thiswhite, ""); |
cd81e915 | 4697 | PL_faketokens = 0; |
5db06880 | 4698 | } |
cd81e915 | 4699 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4700 | } |
4701 | s = d; | |
4702 | /* } | |
4703 | *s = '\0'; | |
4704 | PL_bufend = s; */ | |
4705 | } | |
4706 | #else | |
378cc40b | 4707 | *s = '\0'; |
3280af22 | 4708 | PL_bufend = s; |
5db06880 | 4709 | #endif |
a687059c | 4710 | } |
378cc40b LW |
4711 | goto retry; |
4712 | case '-': | |
79072805 | 4713 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4714 | I32 ftst = 0; |
90771dc0 | 4715 | char tmp; |
e5edeb50 | 4716 | |
378cc40b | 4717 | s++; |
3280af22 | 4718 | PL_bufptr = s; |
748a9306 LW |
4719 | tmp = *s++; |
4720 | ||
bf4acbe4 | 4721 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4722 | s++; |
4723 | ||
4724 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4725 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4726 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4727 | OPERATOR('-'); /* unary minus */ |
4728 | } | |
3280af22 | 4729 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4730 | switch (tmp) { |
e5edeb50 JH |
4731 | case 'r': ftst = OP_FTEREAD; break; |
4732 | case 'w': ftst = OP_FTEWRITE; break; | |
4733 | case 'x': ftst = OP_FTEEXEC; break; | |
4734 | case 'o': ftst = OP_FTEOWNED; break; | |
4735 | case 'R': ftst = OP_FTRREAD; break; | |
4736 | case 'W': ftst = OP_FTRWRITE; break; | |
4737 | case 'X': ftst = OP_FTREXEC; break; | |
4738 | case 'O': ftst = OP_FTROWNED; break; | |
4739 | case 'e': ftst = OP_FTIS; break; | |
4740 | case 'z': ftst = OP_FTZERO; break; | |
4741 | case 's': ftst = OP_FTSIZE; break; | |
4742 | case 'f': ftst = OP_FTFILE; break; | |
4743 | case 'd': ftst = OP_FTDIR; break; | |
4744 | case 'l': ftst = OP_FTLINK; break; | |
4745 | case 'p': ftst = OP_FTPIPE; break; | |
4746 | case 'S': ftst = OP_FTSOCK; break; | |
4747 | case 'u': ftst = OP_FTSUID; break; | |
4748 | case 'g': ftst = OP_FTSGID; break; | |
4749 | case 'k': ftst = OP_FTSVTX; break; | |
4750 | case 'b': ftst = OP_FTBLK; break; | |
4751 | case 'c': ftst = OP_FTCHR; break; | |
4752 | case 't': ftst = OP_FTTTY; break; | |
4753 | case 'T': ftst = OP_FTTEXT; break; | |
4754 | case 'B': ftst = OP_FTBINARY; break; | |
4755 | case 'M': case 'A': case 'C': | |
fafc274c | 4756 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4757 | switch (tmp) { |
4758 | case 'M': ftst = OP_FTMTIME; break; | |
4759 | case 'A': ftst = OP_FTATIME; break; | |
4760 | case 'C': ftst = OP_FTCTIME; break; | |
4761 | default: break; | |
4762 | } | |
4763 | break; | |
378cc40b | 4764 | default: |
378cc40b LW |
4765 | break; |
4766 | } | |
e5edeb50 | 4767 | if (ftst) { |
eb160463 | 4768 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4769 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4770 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4771 | } ); |
e5edeb50 JH |
4772 | FTST(ftst); |
4773 | } | |
4774 | else { | |
4775 | /* Assume it was a minus followed by a one-letter named | |
4776 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4777 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4778 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4779 | (int) tmp); |
5f80b19c | 4780 | } ); |
3cf7b4c4 | 4781 | s = --PL_bufptr; |
e5edeb50 | 4782 | } |
378cc40b | 4783 | } |
90771dc0 NC |
4784 | { |
4785 | const char tmp = *s++; | |
4786 | if (*s == tmp) { | |
4787 | s++; | |
4788 | if (PL_expect == XOPERATOR) | |
4789 | TERM(POSTDEC); | |
4790 | else | |
4791 | OPERATOR(PREDEC); | |
4792 | } | |
4793 | else if (*s == '>') { | |
4794 | s++; | |
29595ff2 | 4795 | s = SKIPSPACE1(s); |
90771dc0 NC |
4796 | if (isIDFIRST_lazy_if(s,UTF)) { |
4797 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4798 | TOKEN(ARROW); | |
4799 | } | |
4800 | else if (*s == '$') | |
4801 | OPERATOR(ARROW); | |
4802 | else | |
4803 | TERM(ARROW); | |
4804 | } | |
3280af22 | 4805 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4806 | Aop(OP_SUBTRACT); |
4807 | else { | |
4808 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4809 | check_uni(); | |
4810 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4811 | } |
2f3197b3 | 4812 | } |
79072805 | 4813 | |
378cc40b | 4814 | case '+': |
90771dc0 NC |
4815 | { |
4816 | const char tmp = *s++; | |
4817 | if (*s == tmp) { | |
4818 | s++; | |
4819 | if (PL_expect == XOPERATOR) | |
4820 | TERM(POSTINC); | |
4821 | else | |
4822 | OPERATOR(PREINC); | |
4823 | } | |
3280af22 | 4824 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4825 | Aop(OP_ADD); |
4826 | else { | |
4827 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4828 | check_uni(); | |
4829 | OPERATOR('+'); | |
4830 | } | |
2f3197b3 | 4831 | } |
a687059c | 4832 | |
378cc40b | 4833 | case '*': |
3280af22 NIS |
4834 | if (PL_expect != XOPERATOR) { |
4835 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4836 | PL_expect = XOPERATOR; | |
4837 | force_ident(PL_tokenbuf, '*'); | |
4838 | if (!*PL_tokenbuf) | |
a0d0e21e | 4839 | PREREF('*'); |
79072805 | 4840 | TERM('*'); |
a687059c | 4841 | } |
79072805 LW |
4842 | s++; |
4843 | if (*s == '*') { | |
a687059c | 4844 | s++; |
79072805 | 4845 | PWop(OP_POW); |
a687059c | 4846 | } |
79072805 LW |
4847 | Mop(OP_MULTIPLY); |
4848 | ||
378cc40b | 4849 | case '%': |
3280af22 | 4850 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4851 | ++s; |
4852 | Mop(OP_MODULO); | |
a687059c | 4853 | } |
3280af22 | 4854 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4855 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4856 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4857 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4858 | PREREF('%'); |
a687059c | 4859 | } |
3280af22 | 4860 | PL_pending_ident = '%'; |
bbce6d69 | 4861 | TERM('%'); |
a687059c | 4862 | |
378cc40b | 4863 | case '^': |
79072805 | 4864 | s++; |
a0d0e21e | 4865 | BOop(OP_BIT_XOR); |
79072805 | 4866 | case '[': |
3280af22 | 4867 | PL_lex_brackets++; |
df3467db IG |
4868 | { |
4869 | const char tmp = *s++; | |
4870 | OPERATOR(tmp); | |
4871 | } | |
378cc40b | 4872 | case '~': |
0d863452 | 4873 | if (s[1] == '~' |
3e7dd34d | 4874 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4875 | { |
4876 | s += 2; | |
4877 | Eop(OP_SMARTMATCH); | |
4878 | } | |
378cc40b | 4879 | case ',': |
90771dc0 NC |
4880 | { |
4881 | const char tmp = *s++; | |
4882 | OPERATOR(tmp); | |
4883 | } | |
a0d0e21e LW |
4884 | case ':': |
4885 | if (s[1] == ':') { | |
4886 | len = 0; | |
0bfa2a8a | 4887 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4888 | } |
4889 | s++; | |
09bef843 SB |
4890 | switch (PL_expect) { |
4891 | OP *attrs; | |
5db06880 NC |
4892 | #ifdef PERL_MAD |
4893 | I32 stuffstart; | |
4894 | #endif | |
09bef843 SB |
4895 | case XOPERATOR: |
4896 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4897 | break; | |
4898 | PL_bufptr = s; /* update in case we back off */ | |
d83f38d8 NC |
4899 | if (*s == '=') { |
4900 | deprecate(":= for an empty attribute list"); | |
4901 | } | |
09bef843 SB |
4902 | goto grabattrs; |
4903 | case XATTRBLOCK: | |
4904 | PL_expect = XBLOCK; | |
4905 | goto grabattrs; | |
4906 | case XATTRTERM: | |
4907 | PL_expect = XTERMBLOCK; | |
4908 | grabattrs: | |
5db06880 NC |
4909 | #ifdef PERL_MAD |
4910 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4911 | #endif | |
29595ff2 | 4912 | s = PEEKSPACE(s); |
5f66b61c | 4913 | attrs = NULL; |
7e2040f0 | 4914 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4915 | I32 tmp; |
5cc237b8 | 4916 | SV *sv; |
09bef843 | 4917 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4918 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4919 | if (tmp < 0) tmp = -tmp; |
4920 | switch (tmp) { | |
4921 | case KEY_or: | |
4922 | case KEY_and: | |
4923 | case KEY_for: | |
11baf631 | 4924 | case KEY_foreach: |
f9829d6b GS |
4925 | case KEY_unless: |
4926 | case KEY_if: | |
4927 | case KEY_while: | |
4928 | case KEY_until: | |
4929 | goto got_attrs; | |
4930 | default: | |
4931 | break; | |
4932 | } | |
4933 | } | |
5cc237b8 | 4934 | sv = newSVpvn(s, len); |
09bef843 SB |
4935 | if (*d == '(') { |
4936 | d = scan_str(d,TRUE,TRUE); | |
4937 | if (!d) { | |
09bef843 SB |
4938 | /* MUST advance bufptr here to avoid bogus |
4939 | "at end of line" context messages from yyerror(). | |
4940 | */ | |
4941 | PL_bufptr = s + len; | |
4942 | yyerror("Unterminated attribute parameter in attribute list"); | |
4943 | if (attrs) | |
4944 | op_free(attrs); | |
5cc237b8 | 4945 | sv_free(sv); |
bbf60fe6 | 4946 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4947 | } |
4948 | } | |
4949 | if (PL_lex_stuff) { | |
09bef843 SB |
4950 | sv_catsv(sv, PL_lex_stuff); |
4951 | attrs = append_elem(OP_LIST, attrs, | |
4952 | newSVOP(OP_CONST, 0, sv)); | |
4953 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4954 | PL_lex_stuff = NULL; |
09bef843 SB |
4955 | } |
4956 | else { | |
5cc237b8 BS |
4957 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4958 | sv_free(sv); | |
1108974d | 4959 | if (PL_in_my == KEY_our) { |
df9a6019 | 4960 | deprecate(":unique"); |
1108974d | 4961 | } |
bfed75c6 | 4962 | else |
371fce9b DM |
4963 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4964 | } | |
4965 | ||
d3cea301 SB |
4966 | /* NOTE: any CV attrs applied here need to be part of |
4967 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4968 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4969 | sv_free(sv); | |
78f9721b | 4970 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4971 | } |
4972 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4973 | sv_free(sv); | |
8e5dadda | 4974 | deprecate(":locked"); |
5cc237b8 BS |
4975 | } |
4976 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4977 | sv_free(sv); | |
78f9721b | 4978 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 4979 | } |
78f9721b SM |
4980 | /* After we've set the flags, it could be argued that |
4981 | we don't need to do the attributes.pm-based setting | |
4982 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4983 | flags. To experiment with that, uncomment the |
4984 | following "else". (Note that's already been | |
4985 | uncommented. That keeps the above-applied built-in | |
4986 | attributes from being intercepted (and possibly | |
4987 | rejected) by a package's attribute routines, but is | |
4988 | justified by the performance win for the common case | |
4989 | of applying only built-in attributes.) */ | |
0256094b | 4990 | else |
78f9721b SM |
4991 | attrs = append_elem(OP_LIST, attrs, |
4992 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4993 | sv)); |
09bef843 | 4994 | } |
29595ff2 | 4995 | s = PEEKSPACE(d); |
0120eecf | 4996 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4997 | s = PEEKSPACE(s+1); |
0120eecf GS |
4998 | else if (s == d) |
4999 | break; /* require real whitespace or :'s */ | |
29595ff2 | 5000 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 5001 | } |
90771dc0 NC |
5002 | { |
5003 | const char tmp | |
5004 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
5005 | if (*s != ';' && *s != '}' && *s != tmp | |
5006 | && (tmp != '=' || *s != ')')) { | |
5007 | const char q = ((*s == '\'') ? '"' : '\''); | |
5008 | /* If here for an expression, and parsed no attrs, back | |
5009 | off. */ | |
5010 | if (tmp == '=' && !attrs) { | |
5011 | s = PL_bufptr; | |
5012 | break; | |
5013 | } | |
5014 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
5015 | context messages from yyerror(). | |
5016 | */ | |
5017 | PL_bufptr = s; | |
10edeb5d JH |
5018 | yyerror( (const char *) |
5019 | (*s | |
5020 | ? Perl_form(aTHX_ "Invalid separator character " | |
5021 | "%c%c%c in attribute list", q, *s, q) | |
5022 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
5023 | if (attrs) |
5024 | op_free(attrs); | |
5025 | OPERATOR(':'); | |
09bef843 | 5026 | } |
09bef843 | 5027 | } |
f9829d6b | 5028 | got_attrs: |
09bef843 | 5029 | if (attrs) { |
cd81e915 | 5030 | start_force(PL_curforce); |
9ded7720 | 5031 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 5032 | CURMAD('_', PL_nextwhite); |
89122651 | 5033 | force_next(THING); |
5db06880 NC |
5034 | } |
5035 | #ifdef PERL_MAD | |
5036 | if (PL_madskills) { | |
cd81e915 | 5037 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 5038 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 5039 | } |
5db06880 | 5040 | #endif |
09bef843 SB |
5041 | TOKEN(COLONATTR); |
5042 | } | |
a0d0e21e | 5043 | OPERATOR(':'); |
8990e307 LW |
5044 | case '(': |
5045 | s++; | |
3280af22 NIS |
5046 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
5047 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 5048 | else |
3280af22 | 5049 | PL_expect = XTERM; |
29595ff2 | 5050 | s = SKIPSPACE1(s); |
a0d0e21e | 5051 | TOKEN('('); |
378cc40b | 5052 | case ';': |
f4dd75d9 | 5053 | CLINE; |
90771dc0 NC |
5054 | { |
5055 | const char tmp = *s++; | |
5056 | OPERATOR(tmp); | |
5057 | } | |
378cc40b | 5058 | case ')': |
90771dc0 NC |
5059 | { |
5060 | const char tmp = *s++; | |
29595ff2 | 5061 | s = SKIPSPACE1(s); |
90771dc0 NC |
5062 | if (*s == '{') |
5063 | PREBLOCK(tmp); | |
5064 | TERM(tmp); | |
5065 | } | |
79072805 LW |
5066 | case ']': |
5067 | s++; | |
3280af22 | 5068 | if (PL_lex_brackets <= 0) |
d98d5fff | 5069 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 5070 | else |
3280af22 NIS |
5071 | --PL_lex_brackets; |
5072 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5073 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
5074 | if (*s == '-' && s[1] == '>') |
5075 | PL_lex_state = LEX_INTERPENDMAYBE; | |
5076 | else if (*s != '[' && *s != '{') | |
3280af22 | 5077 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5078 | } |
5079 | } | |
4633a7c4 | 5080 | TERM(']'); |
79072805 LW |
5081 | case '{': |
5082 | leftbracket: | |
79072805 | 5083 | s++; |
3280af22 | 5084 | if (PL_lex_brackets > 100) { |
8edd5f42 | 5085 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 5086 | } |
3280af22 | 5087 | switch (PL_expect) { |
a0d0e21e | 5088 | case XTERM: |
3280af22 | 5089 | if (PL_lex_formbrack) { |
a0d0e21e LW |
5090 | s--; |
5091 | PRETERMBLOCK(DO); | |
5092 | } | |
3280af22 NIS |
5093 | if (PL_oldoldbufptr == PL_last_lop) |
5094 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5095 | else |
3280af22 | 5096 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 5097 | OPERATOR(HASHBRACK); |
a0d0e21e | 5098 | case XOPERATOR: |
bf4acbe4 | 5099 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 5100 | s++; |
44a8e56a | 5101 | d = s; |
3280af22 NIS |
5102 | PL_tokenbuf[0] = '\0'; |
5103 | if (d < PL_bufend && *d == '-') { | |
5104 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 5105 | d++; |
bf4acbe4 | 5106 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 5107 | d++; |
5108 | } | |
7e2040f0 | 5109 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 5110 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 5111 | FALSE, &len); |
bf4acbe4 | 5112 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
5113 | d++; |
5114 | if (*d == '}') { | |
f54cb97a | 5115 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 5116 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
5117 | if (minus) | |
5118 | force_next('-'); | |
748a9306 LW |
5119 | } |
5120 | } | |
5121 | /* FALL THROUGH */ | |
09bef843 | 5122 | case XATTRBLOCK: |
748a9306 | 5123 | case XBLOCK: |
3280af22 NIS |
5124 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
5125 | PL_expect = XSTATE; | |
a0d0e21e | 5126 | break; |
09bef843 | 5127 | case XATTRTERM: |
a0d0e21e | 5128 | case XTERMBLOCK: |
3280af22 NIS |
5129 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
5130 | PL_expect = XSTATE; | |
a0d0e21e LW |
5131 | break; |
5132 | default: { | |
f54cb97a | 5133 | const char *t; |
3280af22 NIS |
5134 | if (PL_oldoldbufptr == PL_last_lop) |
5135 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5136 | else |
3280af22 | 5137 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 5138 | s = SKIPSPACE1(s); |
8452ff4b SB |
5139 | if (*s == '}') { |
5140 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
5141 | PL_expect = XTERM; | |
5142 | /* This hack is to get the ${} in the message. */ | |
5143 | PL_bufptr = s+1; | |
5144 | yyerror("syntax error"); | |
5145 | break; | |
5146 | } | |
a0d0e21e | 5147 | OPERATOR(HASHBRACK); |
8452ff4b | 5148 | } |
b8a4b1be GS |
5149 | /* This hack serves to disambiguate a pair of curlies |
5150 | * as being a block or an anon hash. Normally, expectation | |
5151 | * determines that, but in cases where we're not in a | |
5152 | * position to expect anything in particular (like inside | |
5153 | * eval"") we have to resolve the ambiguity. This code | |
5154 | * covers the case where the first term in the curlies is a | |
5155 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 5156 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
5157 | * curly in order to force resolution as an anon hash. |
5158 | * | |
5159 | * XXX should probably propagate the outer expectation | |
5160 | * into eval"" to rely less on this hack, but that could | |
5161 | * potentially break current behavior of eval"". | |
5162 | * GSAR 97-07-21 | |
5163 | */ | |
5164 | t = s; | |
5165 | if (*s == '\'' || *s == '"' || *s == '`') { | |
5166 | /* common case: get past first string, handling escapes */ | |
3280af22 | 5167 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
5168 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
5169 | t++; | |
5170 | t++; | |
a0d0e21e | 5171 | } |
b8a4b1be | 5172 | else if (*s == 'q') { |
3280af22 | 5173 | if (++t < PL_bufend |
b8a4b1be | 5174 | && (!isALNUM(*t) |
3280af22 | 5175 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
5176 | && !isALNUM(*t)))) |
5177 | { | |
abc667d1 | 5178 | /* skip q//-like construct */ |
f54cb97a | 5179 | const char *tmps; |
b8a4b1be GS |
5180 | char open, close, term; |
5181 | I32 brackets = 1; | |
5182 | ||
3280af22 | 5183 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 5184 | t++; |
abc667d1 DM |
5185 | /* check for q => */ |
5186 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
5187 | OPERATOR(HASHBRACK); | |
5188 | } | |
b8a4b1be GS |
5189 | term = *t; |
5190 | open = term; | |
5191 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
5192 | term = tmps[5]; | |
5193 | close = term; | |
5194 | if (open == close) | |
3280af22 NIS |
5195 | for (t++; t < PL_bufend; t++) { |
5196 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 5197 | t++; |
6d07e5e9 | 5198 | else if (*t == open) |
b8a4b1be GS |
5199 | break; |
5200 | } | |
abc667d1 | 5201 | else { |
3280af22 NIS |
5202 | for (t++; t < PL_bufend; t++) { |
5203 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 5204 | t++; |
6d07e5e9 | 5205 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
5206 | break; |
5207 | else if (*t == open) | |
5208 | brackets++; | |
5209 | } | |
abc667d1 DM |
5210 | } |
5211 | t++; | |
b8a4b1be | 5212 | } |
abc667d1 DM |
5213 | else |
5214 | /* skip plain q word */ | |
5215 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
5216 | t += UTF8SKIP(t); | |
a0d0e21e | 5217 | } |
7e2040f0 | 5218 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 5219 | t += UTF8SKIP(t); |
7e2040f0 | 5220 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 5221 | t += UTF8SKIP(t); |
a0d0e21e | 5222 | } |
3280af22 | 5223 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 5224 | t++; |
b8a4b1be GS |
5225 | /* if comma follows first term, call it an anon hash */ |
5226 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 5227 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 5228 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 5229 | OPERATOR(HASHBRACK); |
3280af22 | 5230 | if (PL_expect == XREF) |
4e4e412b | 5231 | PL_expect = XTERM; |
a0d0e21e | 5232 | else { |
3280af22 NIS |
5233 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
5234 | PL_expect = XSTATE; | |
a0d0e21e | 5235 | } |
8990e307 | 5236 | } |
a0d0e21e | 5237 | break; |
463ee0b2 | 5238 | } |
6154021b | 5239 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 5240 | if (isSPACE(*s) || *s == '#') |
3280af22 | 5241 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 5242 | TOKEN('{'); |
378cc40b | 5243 | case '}': |
79072805 LW |
5244 | rightbracket: |
5245 | s++; | |
3280af22 | 5246 | if (PL_lex_brackets <= 0) |
d98d5fff | 5247 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 5248 | else |
3280af22 | 5249 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 5250 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
5251 | PL_lex_formbrack = 0; |
5252 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5253 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
5254 | if (PL_expect & XFAKEBRACK) { |
5255 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
5256 | PL_lex_state = LEX_INTERPEND; |
5257 | PL_bufptr = s; | |
5db06880 NC |
5258 | #if 0 |
5259 | if (PL_madskills) { | |
cd81e915 | 5260 | if (!PL_thiswhite) |
6b29d1f5 | 5261 | PL_thiswhite = newSVpvs(""); |
76f68e9b | 5262 | sv_catpvs(PL_thiswhite,"}"); |
5db06880 NC |
5263 | } |
5264 | #endif | |
cea2e8a9 | 5265 | return yylex(); /* ignore fake brackets */ |
79072805 | 5266 | } |
fa83b5b6 | 5267 | if (*s == '-' && s[1] == '>') |
3280af22 | 5268 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 5269 | else if (*s != '[' && *s != '{') |
3280af22 | 5270 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5271 | } |
5272 | } | |
9059aa12 LW |
5273 | if (PL_expect & XFAKEBRACK) { |
5274 | PL_expect &= XENUMMASK; | |
3280af22 | 5275 | PL_bufptr = s; |
cea2e8a9 | 5276 | return yylex(); /* ignore fake brackets */ |
748a9306 | 5277 | } |
cd81e915 | 5278 | start_force(PL_curforce); |
5db06880 NC |
5279 | if (PL_madskills) { |
5280 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 5281 | CURMAD('_', PL_thiswhite); |
5db06880 | 5282 | } |
79072805 | 5283 | force_next('}'); |
5db06880 | 5284 | #ifdef PERL_MAD |
cd81e915 | 5285 | if (!PL_thistoken) |
6b29d1f5 | 5286 | PL_thistoken = newSVpvs(""); |
5db06880 | 5287 | #endif |
79072805 | 5288 | TOKEN(';'); |
378cc40b LW |
5289 | case '&': |
5290 | s++; | |
90771dc0 | 5291 | if (*s++ == '&') |
a0d0e21e | 5292 | AOPERATOR(ANDAND); |
378cc40b | 5293 | s--; |
3280af22 | 5294 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
5295 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
5296 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 5297 | { |
57843af0 | 5298 | CopLINE_dec(PL_curcop); |
f1f66076 | 5299 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5300 | CopLINE_inc(PL_curcop); |
463ee0b2 | 5301 | } |
79072805 | 5302 | BAop(OP_BIT_AND); |
463ee0b2 | 5303 | } |
79072805 | 5304 | |
3280af22 NIS |
5305 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
5306 | if (*PL_tokenbuf) { | |
5307 | PL_expect = XOPERATOR; | |
5308 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 5309 | } |
79072805 LW |
5310 | else |
5311 | PREREF('&'); | |
6154021b | 5312 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
5313 | TERM('&'); |
5314 | ||
378cc40b LW |
5315 | case '|': |
5316 | s++; | |
90771dc0 | 5317 | if (*s++ == '|') |
a0d0e21e | 5318 | AOPERATOR(OROR); |
378cc40b | 5319 | s--; |
79072805 | 5320 | BOop(OP_BIT_OR); |
378cc40b LW |
5321 | case '=': |
5322 | s++; | |
748a9306 | 5323 | { |
90771dc0 NC |
5324 | const char tmp = *s++; |
5325 | if (tmp == '=') | |
5326 | Eop(OP_EQ); | |
5327 | if (tmp == '>') | |
5328 | OPERATOR(','); | |
5329 | if (tmp == '~') | |
5330 | PMop(OP_MATCH); | |
5331 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
5332 | && strchr("+-*/%.^&|<",tmp)) | |
5333 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5334 | "Reversed %c= operator",(int)tmp); | |
5335 | s--; | |
5336 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
5337 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
5338 | { | |
5339 | if (PL_in_eval && !PL_rsfp) { | |
5340 | d = PL_bufend; | |
5341 | while (s < d) { | |
5342 | if (*s++ == '\n') { | |
5343 | incline(s); | |
5344 | if (strnEQ(s,"=cut",4)) { | |
5345 | s = strchr(s,'\n'); | |
5346 | if (s) | |
5347 | s++; | |
5348 | else | |
5349 | s = d; | |
5350 | incline(s); | |
5351 | goto retry; | |
5352 | } | |
5353 | } | |
a5f75d66 | 5354 | } |
90771dc0 | 5355 | goto retry; |
a5f75d66 | 5356 | } |
5db06880 NC |
5357 | #ifdef PERL_MAD |
5358 | if (PL_madskills) { | |
cd81e915 | 5359 | if (!PL_thiswhite) |
6b29d1f5 | 5360 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 5361 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
5362 | PL_bufend - PL_linestart); |
5363 | } | |
5364 | #endif | |
90771dc0 NC |
5365 | s = PL_bufend; |
5366 | PL_doextract = TRUE; | |
5367 | goto retry; | |
a5f75d66 | 5368 | } |
a0d0e21e | 5369 | } |
3280af22 | 5370 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 5371 | const char *t = s; |
51882d45 | 5372 | #ifdef PERL_STRICT_CR |
c35e046a | 5373 | while (SPACE_OR_TAB(*t)) |
51882d45 | 5374 | #else |
c35e046a | 5375 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 5376 | #endif |
c35e046a | 5377 | t++; |
a0d0e21e LW |
5378 | if (*t == '\n' || *t == '#') { |
5379 | s--; | |
3280af22 | 5380 | PL_expect = XBLOCK; |
a0d0e21e LW |
5381 | goto leftbracket; |
5382 | } | |
79072805 | 5383 | } |
6154021b | 5384 | pl_yylval.ival = 0; |
a0d0e21e | 5385 | OPERATOR(ASSIGNOP); |
378cc40b LW |
5386 | case '!': |
5387 | s++; | |
90771dc0 NC |
5388 | { |
5389 | const char tmp = *s++; | |
5390 | if (tmp == '=') { | |
5391 | /* was this !=~ where !~ was meant? | |
5392 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
5393 | ||
5394 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
5395 | const char *t = s+1; | |
5396 | ||
5397 | while (t < PL_bufend && isSPACE(*t)) | |
5398 | ++t; | |
5399 | ||
5400 | if (*t == '/' || *t == '?' || | |
5401 | ((*t == 'm' || *t == 's' || *t == 'y') | |
5402 | && !isALNUM(t[1])) || | |
5403 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
5404 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5405 | "!=~ should be !~"); | |
5406 | } | |
5407 | Eop(OP_NE); | |
5408 | } | |
5409 | if (tmp == '~') | |
5410 | PMop(OP_NOT); | |
5411 | } | |
378cc40b LW |
5412 | s--; |
5413 | OPERATOR('!'); | |
5414 | case '<': | |
3280af22 | 5415 | if (PL_expect != XOPERATOR) { |
93a17b20 | 5416 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 5417 | check_uni(); |
79072805 LW |
5418 | if (s[1] == '<') |
5419 | s = scan_heredoc(s); | |
5420 | else | |
5421 | s = scan_inputsymbol(s); | |
5422 | TERM(sublex_start()); | |
378cc40b LW |
5423 | } |
5424 | s++; | |
90771dc0 NC |
5425 | { |
5426 | char tmp = *s++; | |
5427 | if (tmp == '<') | |
5428 | SHop(OP_LEFT_SHIFT); | |
5429 | if (tmp == '=') { | |
5430 | tmp = *s++; | |
5431 | if (tmp == '>') | |
5432 | Eop(OP_NCMP); | |
5433 | s--; | |
5434 | Rop(OP_LE); | |
5435 | } | |
395c3793 | 5436 | } |
378cc40b | 5437 | s--; |
79072805 | 5438 | Rop(OP_LT); |
378cc40b LW |
5439 | case '>': |
5440 | s++; | |
90771dc0 NC |
5441 | { |
5442 | const char tmp = *s++; | |
5443 | if (tmp == '>') | |
5444 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 5445 | else if (tmp == '=') |
90771dc0 NC |
5446 | Rop(OP_GE); |
5447 | } | |
378cc40b | 5448 | s--; |
79072805 | 5449 | Rop(OP_GT); |
378cc40b LW |
5450 | |
5451 | case '$': | |
bbce6d69 | 5452 | CLINE; |
5453 | ||
3280af22 NIS |
5454 | if (PL_expect == XOPERATOR) { |
5455 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5456 | return deprecate_commaless_var_list(); |
a0d0e21e | 5457 | } |
8990e307 | 5458 | } |
a0d0e21e | 5459 | |
7e2040f0 | 5460 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 5461 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
5462 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
5463 | sizeof PL_tokenbuf - 1, FALSE); | |
5464 | if (PL_expect == XOPERATOR) | |
5465 | no_op("Array length", s); | |
3280af22 | 5466 | if (!PL_tokenbuf[1]) |
a0d0e21e | 5467 | PREREF(DOLSHARP); |
3280af22 NIS |
5468 | PL_expect = XOPERATOR; |
5469 | PL_pending_ident = '#'; | |
463ee0b2 | 5470 | TOKEN(DOLSHARP); |
79072805 | 5471 | } |
bbce6d69 | 5472 | |
3280af22 | 5473 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
5474 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
5475 | sizeof PL_tokenbuf - 1, FALSE); | |
5476 | if (PL_expect == XOPERATOR) | |
5477 | no_op("Scalar", s); | |
3280af22 NIS |
5478 | if (!PL_tokenbuf[1]) { |
5479 | if (s == PL_bufend) | |
bbce6d69 | 5480 | yyerror("Final $ should be \\$ or $name"); |
5481 | PREREF('$'); | |
8990e307 | 5482 | } |
a0d0e21e | 5483 | |
bbce6d69 | 5484 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 5485 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 5486 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 5487 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 5488 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 5489 | TERM(THING); |
5490 | } | |
5491 | ||
ff68c719 | 5492 | d = s; |
90771dc0 NC |
5493 | { |
5494 | const char tmp = *s; | |
ae28bb2a | 5495 | if (PL_lex_state == LEX_NORMAL || PL_lex_brackets) |
29595ff2 | 5496 | s = SKIPSPACE1(s); |
ff68c719 | 5497 | |
90771dc0 NC |
5498 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
5499 | && intuit_more(s)) { | |
5500 | if (*s == '[') { | |
5501 | PL_tokenbuf[0] = '@'; | |
5502 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
5503 | char *t = s+1; |
5504 | ||
5505 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
5506 | t++; | |
90771dc0 | 5507 | if (*t++ == ',') { |
29595ff2 | 5508 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
5509 | while (t < PL_bufend && *t != ']') |
5510 | t++; | |
9014280d | 5511 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 5512 | "Multidimensional syntax %.*s not supported", |
36c7798d | 5513 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 5514 | } |
748a9306 | 5515 | } |
93a17b20 | 5516 | } |
90771dc0 NC |
5517 | else if (*s == '{') { |
5518 | char *t; | |
5519 | PL_tokenbuf[0] = '%'; | |
5520 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
5521 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
5522 | { | |
5523 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
5524 | do { |
5525 | t++; | |
5526 | } while (isSPACE(*t)); | |
90771dc0 | 5527 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 5528 | STRLEN len; |
90771dc0 | 5529 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 5530 | &len); |
c35e046a AL |
5531 | while (isSPACE(*t)) |
5532 | t++; | |
780a5241 | 5533 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
5534 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
5535 | "You need to quote \"%s\"", | |
5536 | tmpbuf); | |
5537 | } | |
5538 | } | |
5539 | } | |
93a17b20 | 5540 | } |
bbce6d69 | 5541 | |
90771dc0 NC |
5542 | PL_expect = XOPERATOR; |
5543 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
5544 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
5545 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
5546 | PL_expect = XOPERATOR; | |
5547 | else if (strchr("$@\"'`q", *s)) | |
5548 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
5549 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
5550 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
5551 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
5552 | char tmpbuf[sizeof PL_tokenbuf]; | |
5553 | int t2; | |
5554 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 5555 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
5556 | /* binary operators exclude handle interpretations */ |
5557 | switch (t2) { | |
5558 | case -KEY_x: | |
5559 | case -KEY_eq: | |
5560 | case -KEY_ne: | |
5561 | case -KEY_gt: | |
5562 | case -KEY_lt: | |
5563 | case -KEY_ge: | |
5564 | case -KEY_le: | |
5565 | case -KEY_cmp: | |
5566 | break; | |
5567 | default: | |
5568 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
5569 | break; | |
5570 | } | |
5571 | } | |
5572 | else { | |
5573 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
5574 | } |
5575 | } | |
90771dc0 NC |
5576 | else if (isDIGIT(*s)) |
5577 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
5578 | else if (*s == '.' && isDIGIT(s[1])) | |
5579 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
5580 | else if ((*s == '?' || *s == '-' || *s == '+') | |
5581 | && !isSPACE(s[1]) && s[1] != '=') | |
5582 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
5583 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
5584 | && s[1] != '/') | |
5585 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
5586 | XXX except DORDOR operator | |
5587 | */ | |
5588 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
5589 | && s[2] != '=') | |
5590 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 5591 | } |
bbce6d69 | 5592 | } |
3280af22 | 5593 | PL_pending_ident = '$'; |
79072805 | 5594 | TOKEN('$'); |
378cc40b LW |
5595 | |
5596 | case '@': | |
3280af22 | 5597 | if (PL_expect == XOPERATOR) |
bbce6d69 | 5598 | no_op("Array", s); |
3280af22 NIS |
5599 | PL_tokenbuf[0] = '@'; |
5600 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
5601 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 5602 | PREREF('@'); |
5603 | } | |
3280af22 | 5604 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 5605 | s = SKIPSPACE1(s); |
3280af22 | 5606 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 5607 | if (*s == '{') |
3280af22 | 5608 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
5609 | |
5610 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
5611 | if (*s == '[' || *s == '{') { |
5612 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 5613 | const char *t = s + 1; |
7e2040f0 | 5614 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
5615 | t++; |
5616 | if (*t == '}' || *t == ']') { | |
5617 | t++; | |
29595ff2 | 5618 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 5619 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 5620 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
5621 | (int)(t-PL_bufptr), PL_bufptr, |
5622 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 5623 | } |
93a17b20 LW |
5624 | } |
5625 | } | |
463ee0b2 | 5626 | } |
3280af22 | 5627 | PL_pending_ident = '@'; |
79072805 | 5628 | TERM('@'); |
378cc40b | 5629 | |
c963b151 | 5630 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
5631 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
5632 | s += 2; | |
5633 | AOPERATOR(DORDOR); | |
5634 | } | |
c963b151 | 5635 | case '?': /* may either be conditional or pattern */ |
be25f609 | 5636 | if (PL_expect == XOPERATOR) { |
90771dc0 | 5637 | char tmp = *s++; |
c963b151 | 5638 | if(tmp == '?') { |
be25f609 | 5639 | OPERATOR('?'); |
c963b151 BD |
5640 | } |
5641 | else { | |
5642 | tmp = *s++; | |
5643 | if(tmp == '/') { | |
5644 | /* A // operator. */ | |
5645 | AOPERATOR(DORDOR); | |
5646 | } | |
5647 | else { | |
5648 | s--; | |
5649 | Mop(OP_DIVIDE); | |
5650 | } | |
5651 | } | |
5652 | } | |
5653 | else { | |
5654 | /* Disable warning on "study /blah/" */ | |
5655 | if (PL_oldoldbufptr == PL_last_uni | |
5656 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
5657 | || memNE(PL_last_uni, "study", 5) | |
5658 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
5659 | )) | |
5660 | check_uni(); | |
5661 | s = scan_pat(s,OP_MATCH); | |
5662 | TERM(sublex_start()); | |
5663 | } | |
378cc40b LW |
5664 | |
5665 | case '.': | |
51882d45 GS |
5666 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
5667 | #ifdef PERL_STRICT_CR | |
5668 | && s[1] == '\n' | |
5669 | #else | |
5670 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
5671 | #endif | |
5672 | && (s == PL_linestart || s[-1] == '\n') ) | |
5673 | { | |
3280af22 NIS |
5674 | PL_lex_formbrack = 0; |
5675 | PL_expect = XSTATE; | |
79072805 LW |
5676 | goto rightbracket; |
5677 | } | |
be25f609 | 5678 | if (PL_expect == XSTATE && s[1] == '.' && s[2] == '.') { |
5679 | s += 3; | |
5680 | OPERATOR(YADAYADA); | |
5681 | } | |
3280af22 | 5682 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5683 | char tmp = *s++; |
a687059c LW |
5684 | if (*s == tmp) { |
5685 | s++; | |
2f3197b3 LW |
5686 | if (*s == tmp) { |
5687 | s++; | |
6154021b | 5688 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5689 | } |
5690 | else | |
6154021b | 5691 | pl_yylval.ival = 0; |
378cc40b | 5692 | OPERATOR(DOTDOT); |
a687059c | 5693 | } |
79072805 | 5694 | Aop(OP_CONCAT); |
378cc40b LW |
5695 | } |
5696 | /* FALL THROUGH */ | |
5697 | case '0': case '1': case '2': case '3': case '4': | |
5698 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5699 | s = scan_num(s, &pl_yylval); |
931e0695 | 5700 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5701 | if (PL_expect == XOPERATOR) |
8990e307 | 5702 | no_op("Number",s); |
79072805 LW |
5703 | TERM(THING); |
5704 | ||
5705 | case '\'': | |
5db06880 | 5706 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5707 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5708 | if (PL_expect == XOPERATOR) { |
5709 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5710 | return deprecate_commaless_var_list(); |
a0d0e21e | 5711 | } |
463ee0b2 | 5712 | else |
8990e307 | 5713 | no_op("String",s); |
463ee0b2 | 5714 | } |
79072805 | 5715 | if (!s) |
d4c19fe8 | 5716 | missingterm(NULL); |
6154021b | 5717 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5718 | TERM(sublex_start()); |
5719 | ||
5720 | case '"': | |
5db06880 | 5721 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5722 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5723 | if (PL_expect == XOPERATOR) { |
5724 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5725 | return deprecate_commaless_var_list(); |
a0d0e21e | 5726 | } |
463ee0b2 | 5727 | else |
8990e307 | 5728 | no_op("String",s); |
463ee0b2 | 5729 | } |
79072805 | 5730 | if (!s) |
d4c19fe8 | 5731 | missingterm(NULL); |
6154021b | 5732 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
5733 | /* FIXME. I think that this can be const if char *d is replaced by |
5734 | more localised variables. */ | |
3280af22 | 5735 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5736 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 5737 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
5738 | break; |
5739 | } | |
5740 | } | |
79072805 LW |
5741 | TERM(sublex_start()); |
5742 | ||
5743 | case '`': | |
5db06880 | 5744 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5745 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5746 | if (PL_expect == XOPERATOR) |
8990e307 | 5747 | no_op("Backticks",s); |
79072805 | 5748 | if (!s) |
d4c19fe8 | 5749 | missingterm(NULL); |
9b201d7d | 5750 | readpipe_override(); |
79072805 LW |
5751 | TERM(sublex_start()); |
5752 | ||
5753 | case '\\': | |
5754 | s++; | |
a2a5de95 NC |
5755 | if (PL_lex_inwhat && isDIGIT(*s)) |
5756 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", | |
5757 | *s, *s); | |
3280af22 | 5758 | if (PL_expect == XOPERATOR) |
8990e307 | 5759 | no_op("Backslash",s); |
79072805 LW |
5760 | OPERATOR(REFGEN); |
5761 | ||
a7cb1f99 | 5762 | case 'v': |
e526c9e6 | 5763 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5764 | char *start = s + 2; |
dd629d5b | 5765 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5766 | start++; |
5767 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 5768 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
5769 | TERM(THING); |
5770 | } | |
e526c9e6 | 5771 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5772 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5773 | || PL_expect == XREF || PL_expect == XSTATE | |
5774 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 5775 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 5776 | if (!gv) { |
6154021b | 5777 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
5778 | TERM(THING); |
5779 | } | |
5780 | } | |
a7cb1f99 GS |
5781 | } |
5782 | goto keylookup; | |
79072805 | 5783 | case 'x': |
3280af22 | 5784 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5785 | s++; |
5786 | Mop(OP_REPEAT); | |
2f3197b3 | 5787 | } |
79072805 LW |
5788 | goto keylookup; |
5789 | ||
378cc40b | 5790 | case '_': |
79072805 LW |
5791 | case 'a': case 'A': |
5792 | case 'b': case 'B': | |
5793 | case 'c': case 'C': | |
5794 | case 'd': case 'D': | |
5795 | case 'e': case 'E': | |
5796 | case 'f': case 'F': | |
5797 | case 'g': case 'G': | |
5798 | case 'h': case 'H': | |
5799 | case 'i': case 'I': | |
5800 | case 'j': case 'J': | |
5801 | case 'k': case 'K': | |
5802 | case 'l': case 'L': | |
5803 | case 'm': case 'M': | |
5804 | case 'n': case 'N': | |
5805 | case 'o': case 'O': | |
5806 | case 'p': case 'P': | |
5807 | case 'q': case 'Q': | |
5808 | case 'r': case 'R': | |
5809 | case 's': case 'S': | |
5810 | case 't': case 'T': | |
5811 | case 'u': case 'U': | |
a7cb1f99 | 5812 | case 'V': |
79072805 LW |
5813 | case 'w': case 'W': |
5814 | case 'X': | |
5815 | case 'y': case 'Y': | |
5816 | case 'z': case 'Z': | |
5817 | ||
49dc05e3 | 5818 | keylookup: { |
88e1f1a2 | 5819 | bool anydelim; |
90771dc0 | 5820 | I32 tmp; |
10edeb5d JH |
5821 | |
5822 | orig_keyword = 0; | |
5823 | gv = NULL; | |
5824 | gvp = NULL; | |
49dc05e3 | 5825 | |
3280af22 NIS |
5826 | PL_bufptr = s; |
5827 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5828 | |
5829 | /* Some keywords can be followed by any delimiter, including ':' */ | |
88e1f1a2 | 5830 | anydelim = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
155aba94 GS |
5831 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || |
5832 | (PL_tokenbuf[0] == 'q' && | |
5833 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5834 | |
5835 | /* x::* is just a word, unless x is "CORE" */ | |
88e1f1a2 | 5836 | if (!anydelim && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5837 | goto just_a_word; |
5838 | ||
3643fb5f | 5839 | d = s; |
3280af22 | 5840 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5841 | d++; /* no comments skipped here, or s### is misparsed */ |
5842 | ||
748a9306 | 5843 | /* Is this a word before a => operator? */ |
1c3923b3 | 5844 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5845 | CLINE; |
6154021b | 5846 | pl_yylval.opval |
d0a148a6 NC |
5847 | = (OP*)newSVOP(OP_CONST, 0, |
5848 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 5849 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
5850 | TERM(WORD); |
5851 | } | |
5852 | ||
88e1f1a2 JV |
5853 | /* Check for plugged-in keyword */ |
5854 | { | |
5855 | OP *o; | |
5856 | int result; | |
5857 | char *saved_bufptr = PL_bufptr; | |
5858 | PL_bufptr = s; | |
5859 | result = CALL_FPTR(PL_keyword_plugin)(aTHX_ PL_tokenbuf, len, &o); | |
5860 | s = PL_bufptr; | |
5861 | if (result == KEYWORD_PLUGIN_DECLINE) { | |
5862 | /* not a plugged-in keyword */ | |
5863 | PL_bufptr = saved_bufptr; | |
5864 | } else if (result == KEYWORD_PLUGIN_STMT) { | |
5865 | pl_yylval.opval = o; | |
5866 | CLINE; | |
5867 | PL_expect = XSTATE; | |
5868 | return REPORT(PLUGSTMT); | |
5869 | } else if (result == KEYWORD_PLUGIN_EXPR) { | |
5870 | pl_yylval.opval = o; | |
5871 | CLINE; | |
5872 | PL_expect = XOPERATOR; | |
5873 | return REPORT(PLUGEXPR); | |
5874 | } else { | |
5875 | Perl_croak(aTHX_ "Bad plugin affecting keyword '%s'", | |
5876 | PL_tokenbuf); | |
5877 | } | |
5878 | } | |
5879 | ||
5880 | /* Check for built-in keyword */ | |
5881 | tmp = keyword(PL_tokenbuf, len, 0); | |
5882 | ||
5883 | /* Is this a label? */ | |
5884 | if (!anydelim && PL_expect == XSTATE | |
5885 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
5886 | if (tmp) | |
5887 | Perl_croak(aTHX_ "Can't use keyword '%s' as a label", PL_tokenbuf); | |
5888 | s = d + 1; | |
5889 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); | |
5890 | CLINE; | |
5891 | TOKEN(LABEL); | |
5892 | } | |
5893 | ||
a0d0e21e | 5894 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5895 | GV *ogv = NULL; /* override (winner) */ |
5896 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5897 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5898 | CV *cv; |
90e5519e | 5899 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5900 | (cv = GvCVu(gv))) |
5901 | { | |
5902 | if (GvIMPORTED_CV(gv)) | |
5903 | ogv = gv; | |
5904 | else if (! CvMETHOD(cv)) | |
5905 | hgv = gv; | |
5906 | } | |
5907 | if (!ogv && | |
3280af22 | 5908 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 5909 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
5910 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5911 | { | |
5912 | ogv = gv; | |
5913 | } | |
5914 | } | |
5915 | if (ogv) { | |
30fe34ed | 5916 | orig_keyword = tmp; |
56f7f34b | 5917 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5918 | } |
5919 | else if (gv && !gvp | |
5920 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 5921 | && GvCVu(gv)) |
6e7b2336 GS |
5922 | { |
5923 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5924 | } |
56f7f34b CS |
5925 | else { /* no override */ |
5926 | tmp = -tmp; | |
a2a5de95 NC |
5927 | if (tmp == KEY_dump) { |
5928 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
5929 | "dump() better written as CORE::dump()"); | |
ac206dc8 | 5930 | } |
a0714e2c | 5931 | gv = NULL; |
56f7f34b | 5932 | gvp = 0; |
a2a5de95 NC |
5933 | if (hgv && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */ |
5934 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
5935 | "Ambiguous call resolved as CORE::%s(), %s", | |
5936 | GvENAME(hgv), "qualify as such or use &"); | |
49dc05e3 | 5937 | } |
a0d0e21e LW |
5938 | } |
5939 | ||
5940 | reserved_word: | |
5941 | switch (tmp) { | |
79072805 LW |
5942 | |
5943 | default: /* not a keyword */ | |
0bfa2a8a NC |
5944 | /* Trade off - by using this evil construction we can pull the |
5945 | variable gv into the block labelled keylookup. If not, then | |
5946 | we have to give it function scope so that the goto from the | |
5947 | earlier ':' case doesn't bypass the initialisation. */ | |
5948 | if (0) { | |
5949 | just_a_word_zero_gv: | |
5950 | gv = NULL; | |
5951 | gvp = NULL; | |
8bee0991 | 5952 | orig_keyword = 0; |
0bfa2a8a | 5953 | } |
93a17b20 | 5954 | just_a_word: { |
96e4d5b1 | 5955 | SV *sv; |
ce29ac45 | 5956 | int pkgname = 0; |
f54cb97a | 5957 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
f7461760 | 5958 | OP *rv2cv_op; |
5069cc75 | 5959 | CV *cv; |
5db06880 | 5960 | #ifdef PERL_MAD |
cd81e915 | 5961 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5962 | #endif |
5963 | ||
8990e307 LW |
5964 | |
5965 | /* Get the rest if it looks like a package qualifier */ | |
5966 | ||
155aba94 | 5967 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5968 | STRLEN morelen; |
3280af22 | 5969 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5970 | TRUE, &morelen); |
5971 | if (!morelen) | |
cea2e8a9 | 5972 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5973 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5974 | len += morelen; |
ce29ac45 | 5975 | pkgname = 1; |
a0d0e21e | 5976 | } |
8990e307 | 5977 | |
3280af22 NIS |
5978 | if (PL_expect == XOPERATOR) { |
5979 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5980 | CopLINE_dec(PL_curcop); |
f1f66076 | 5981 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5982 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5983 | } |
5984 | else | |
54310121 | 5985 | no_op("Bareword",s); |
463ee0b2 | 5986 | } |
8990e307 | 5987 | |
c3e0f903 GS |
5988 | /* Look for a subroutine with this name in current package, |
5989 | unless name is "Foo::", in which case Foo is a bearword | |
5990 | (and a package name). */ | |
5991 | ||
5db06880 | 5992 | if (len > 2 && !PL_madskills && |
3280af22 | 5993 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5994 | { |
f776e3cd | 5995 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5996 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5997 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5998 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5999 | PL_tokenbuf); |
c3e0f903 | 6000 | len -= 2; |
3280af22 | 6001 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 6002 | gv = NULL; |
c3e0f903 GS |
6003 | gvp = 0; |
6004 | } | |
6005 | else { | |
62d55b22 NC |
6006 | if (!gv) { |
6007 | /* Mustn't actually add anything to a symbol table. | |
6008 | But also don't want to "initialise" any placeholder | |
6009 | constants that might already be there into full | |
6010 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
6011 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
6012 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 6013 | } |
b3d904f3 | 6014 | len = 0; |
c3e0f903 GS |
6015 | } |
6016 | ||
6017 | /* if we saw a global override before, get the right name */ | |
8990e307 | 6018 | |
49dc05e3 | 6019 | if (gvp) { |
396482e1 | 6020 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 6021 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 6022 | } |
8a7a129d NC |
6023 | else { |
6024 | /* If len is 0, newSVpv does strlen(), which is correct. | |
6025 | If len is non-zero, then it will be the true length, | |
6026 | and so the scalar will be created correctly. */ | |
6027 | sv = newSVpv(PL_tokenbuf,len); | |
6028 | } | |
5db06880 | 6029 | #ifdef PERL_MAD |
cd81e915 NC |
6030 | if (PL_madskills && !PL_thistoken) { |
6031 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 6032 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 6033 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
6034 | } |
6035 | #endif | |
8990e307 | 6036 | |
a0d0e21e LW |
6037 | /* Presume this is going to be a bareword of some sort. */ |
6038 | ||
6039 | CLINE; | |
6154021b RGS |
6040 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
6041 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
8f8cf39c JH |
6042 | /* UTF-8 package name? */ |
6043 | if (UTF && !IN_BYTES && | |
95a20fc0 | 6044 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 6045 | SvUTF8_on(sv); |
a0d0e21e | 6046 | |
c3e0f903 GS |
6047 | /* And if "Foo::", then that's what it certainly is. */ |
6048 | ||
6049 | if (len) | |
6050 | goto safe_bareword; | |
6051 | ||
f7461760 Z |
6052 | cv = NULL; |
6053 | { | |
6054 | OP *const_op = newSVOP(OP_CONST, 0, SvREFCNT_inc(sv)); | |
6055 | const_op->op_private = OPpCONST_BARE; | |
6056 | rv2cv_op = newCVREF(0, const_op); | |
6057 | } | |
6058 | if (rv2cv_op->op_type == OP_RV2CV && | |
6059 | (rv2cv_op->op_flags & OPf_KIDS)) { | |
6060 | OP *rv_op = cUNOPx(rv2cv_op)->op_first; | |
6061 | switch (rv_op->op_type) { | |
6062 | case OP_CONST: { | |
6063 | SV *sv = cSVOPx_sv(rv_op); | |
6064 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) | |
6065 | cv = (CV*)SvRV(sv); | |
6066 | } break; | |
6067 | case OP_GV: { | |
6068 | GV *gv = cGVOPx_gv(rv_op); | |
6069 | CV *maybe_cv = GvCVu(gv); | |
6070 | if (maybe_cv && SvTYPE((SV*)maybe_cv) == SVt_PVCV) | |
6071 | cv = maybe_cv; | |
6072 | } break; | |
6073 | } | |
6074 | } | |
5069cc75 | 6075 | |
8990e307 LW |
6076 | /* See if it's the indirect object for a list operator. */ |
6077 | ||
3280af22 NIS |
6078 | if (PL_oldoldbufptr && |
6079 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
6080 | (PL_oldoldbufptr == PL_last_lop |
6081 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 6082 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
6083 | (PL_expect == XREF || |
6084 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 6085 | { |
748a9306 LW |
6086 | bool immediate_paren = *s == '('; |
6087 | ||
a0d0e21e | 6088 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 6089 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 6090 | #ifdef PERL_MAD |
cd81e915 | 6091 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 6092 | #endif |
a0d0e21e LW |
6093 | |
6094 | /* Two barewords in a row may indicate method call. */ | |
6095 | ||
62d55b22 | 6096 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
f7461760 Z |
6097 | (tmp = intuit_method(s, gv, cv))) { |
6098 | op_free(rv2cv_op); | |
bbf60fe6 | 6099 | return REPORT(tmp); |
f7461760 | 6100 | } |
a0d0e21e LW |
6101 | |
6102 | /* If not a declared subroutine, it's an indirect object. */ | |
6103 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 6104 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 6105 | |
7294df96 RGS |
6106 | if ( |
6107 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
f7461760 | 6108 | (!cv && |
a9ef352a | 6109 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 6110 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
6111 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
6112 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
6113 | ) | |
a9ef352a | 6114 | { |
3280af22 | 6115 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 6116 | goto bareword; |
93a17b20 LW |
6117 | } |
6118 | } | |
8990e307 | 6119 | |
3280af22 | 6120 | PL_expect = XOPERATOR; |
5db06880 NC |
6121 | #ifdef PERL_MAD |
6122 | if (isSPACE(*s)) | |
cd81e915 NC |
6123 | s = SKIPSPACE2(s,nextPL_nextwhite); |
6124 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 6125 | #else |
8990e307 | 6126 | s = skipspace(s); |
5db06880 | 6127 | #endif |
1c3923b3 GS |
6128 | |
6129 | /* Is this a word before a => operator? */ | |
ce29ac45 | 6130 | if (*s == '=' && s[1] == '>' && !pkgname) { |
f7461760 | 6131 | op_free(rv2cv_op); |
1c3923b3 | 6132 | CLINE; |
6154021b | 6133 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 6134 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 6135 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
6136 | TERM(WORD); |
6137 | } | |
6138 | ||
6139 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 6140 | if (*s == '(') { |
79072805 | 6141 | CLINE; |
5069cc75 | 6142 | if (cv) { |
c35e046a AL |
6143 | d = s + 1; |
6144 | while (SPACE_OR_TAB(*d)) | |
6145 | d++; | |
f7461760 | 6146 | if (*d == ')' && (sv = cv_const_sv(cv))) { |
96e4d5b1 | 6147 | s = d + 1; |
c631f32b | 6148 | goto its_constant; |
96e4d5b1 | 6149 | } |
6150 | } | |
5db06880 NC |
6151 | #ifdef PERL_MAD |
6152 | if (PL_madskills) { | |
cd81e915 NC |
6153 | PL_nextwhite = PL_thiswhite; |
6154 | PL_thiswhite = 0; | |
5db06880 | 6155 | } |
cd81e915 | 6156 | start_force(PL_curforce); |
5db06880 | 6157 | #endif |
6154021b | 6158 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6159 | PL_expect = XOPERATOR; |
5db06880 NC |
6160 | #ifdef PERL_MAD |
6161 | if (PL_madskills) { | |
cd81e915 NC |
6162 | PL_nextwhite = nextPL_nextwhite; |
6163 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6164 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6165 | } |
6166 | #endif | |
f7461760 | 6167 | op_free(rv2cv_op); |
93a17b20 | 6168 | force_next(WORD); |
6154021b | 6169 | pl_yylval.ival = 0; |
463ee0b2 | 6170 | TOKEN('&'); |
79072805 | 6171 | } |
93a17b20 | 6172 | |
a0d0e21e | 6173 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 6174 | |
f7461760 Z |
6175 | if ((*s == '$' || *s == '{') && !cv) { |
6176 | op_free(rv2cv_op); | |
3280af22 NIS |
6177 | PL_last_lop = PL_oldbufptr; |
6178 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 6179 | PREBLOCK(METHOD); |
463ee0b2 LW |
6180 | } |
6181 | ||
8990e307 LW |
6182 | /* If followed by a bareword, see if it looks like indir obj. */ |
6183 | ||
30fe34ed RGS |
6184 | if (!orig_keyword |
6185 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
f7461760 Z |
6186 | && (tmp = intuit_method(s, gv, cv))) { |
6187 | op_free(rv2cv_op); | |
bbf60fe6 | 6188 | return REPORT(tmp); |
f7461760 | 6189 | } |
93a17b20 | 6190 | |
8990e307 LW |
6191 | /* Not a method, so call it a subroutine (if defined) */ |
6192 | ||
5069cc75 | 6193 | if (cv) { |
9b387841 NC |
6194 | if (lastchar == '-') |
6195 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6196 | "Ambiguous use of -%s resolved as -&%s()", | |
6197 | PL_tokenbuf, PL_tokenbuf); | |
89bfa8cd | 6198 | /* Check for a constant sub */ |
f7461760 | 6199 | if ((sv = cv_const_sv(cv))) { |
96e4d5b1 | 6200 | its_constant: |
f7461760 | 6201 | op_free(rv2cv_op); |
6154021b RGS |
6202 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
6203 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
6204 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 6205 | TOKEN(WORD); |
89bfa8cd | 6206 | } |
6207 | ||
6154021b | 6208 | op_free(pl_yylval.opval); |
f7461760 | 6209 | pl_yylval.opval = rv2cv_op; |
6154021b | 6210 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 6211 | PL_last_lop = PL_oldbufptr; |
bf848113 | 6212 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 6213 | /* Is there a prototype? */ |
5db06880 NC |
6214 | if ( |
6215 | #ifdef PERL_MAD | |
6216 | cv && | |
6217 | #endif | |
d9f2850e RGS |
6218 | SvPOK(cv)) |
6219 | { | |
5f66b61c | 6220 | STRLEN protolen; |
daba3364 | 6221 | const char *proto = SvPV_const(MUTABLE_SV(cv), protolen); |
5f66b61c | 6222 | if (!protolen) |
4633a7c4 | 6223 | TERM(FUNC0SUB); |
8c28b960 | 6224 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 6225 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
6226 | while (*proto == ';') |
6227 | proto++; | |
7a52d87a | 6228 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
6229 | if (PL_curstash) |
6230 | sv_setpvs(PL_subname, "__ANON__"); | |
6231 | else | |
6232 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
6233 | PREBLOCK(LSTOPSUB); |
6234 | } | |
a9ef352a | 6235 | } |
5db06880 NC |
6236 | #ifdef PERL_MAD |
6237 | { | |
6238 | if (PL_madskills) { | |
cd81e915 NC |
6239 | PL_nextwhite = PL_thiswhite; |
6240 | PL_thiswhite = 0; | |
5db06880 | 6241 | } |
cd81e915 | 6242 | start_force(PL_curforce); |
6154021b | 6243 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
6244 | PL_expect = XTERM; |
6245 | if (PL_madskills) { | |
cd81e915 NC |
6246 | PL_nextwhite = nextPL_nextwhite; |
6247 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6248 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6249 | } |
6250 | force_next(WORD); | |
6251 | TOKEN(NOAMP); | |
6252 | } | |
6253 | } | |
6254 | ||
6255 | /* Guess harder when madskills require "best effort". */ | |
6256 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
6257 | int probable_sub = 0; | |
6258 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
6259 | probable_sub = 1; | |
6260 | else if (isALPHA(*s)) { | |
6261 | char tmpbuf[1024]; | |
6262 | STRLEN tmplen; | |
6263 | d = s; | |
6264 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 6265 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
6266 | probable_sub = 1; |
6267 | else { | |
6268 | while (d < PL_bufend && isSPACE(*d)) | |
6269 | d++; | |
6270 | if (*d == '=' && d[1] == '>') | |
6271 | probable_sub = 1; | |
6272 | } | |
6273 | } | |
6274 | if (probable_sub) { | |
7a6d04f4 | 6275 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b | 6276 | op_free(pl_yylval.opval); |
f7461760 | 6277 | pl_yylval.opval = rv2cv_op; |
6154021b | 6278 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
5db06880 NC |
6279 | PL_last_lop = PL_oldbufptr; |
6280 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
6281 | PL_nextwhite = PL_thiswhite; |
6282 | PL_thiswhite = 0; | |
6283 | start_force(PL_curforce); | |
6154021b | 6284 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 6285 | PL_expect = XTERM; |
cd81e915 NC |
6286 | PL_nextwhite = nextPL_nextwhite; |
6287 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6288 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6289 | force_next(WORD); |
6290 | TOKEN(NOAMP); | |
6291 | } | |
6292 | #else | |
6154021b | 6293 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6294 | PL_expect = XTERM; |
8990e307 LW |
6295 | force_next(WORD); |
6296 | TOKEN(NOAMP); | |
5db06880 | 6297 | #endif |
8990e307 | 6298 | } |
748a9306 | 6299 | |
8990e307 LW |
6300 | /* Call it a bare word */ |
6301 | ||
5603f27d | 6302 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 6303 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d | 6304 | else { |
9a073a1d RGS |
6305 | bareword: |
6306 | /* after "print" and similar functions (corresponding to | |
6307 | * "F? L" in opcode.pl), whatever wasn't already parsed as | |
6308 | * a filehandle should be subject to "strict subs". | |
6309 | * Likewise for the optional indirect-object argument to system | |
6310 | * or exec, which can't be a bareword */ | |
6311 | if ((PL_last_lop_op == OP_PRINT | |
6312 | || PL_last_lop_op == OP_PRTF | |
6313 | || PL_last_lop_op == OP_SAY | |
6314 | || PL_last_lop_op == OP_SYSTEM | |
6315 | || PL_last_lop_op == OP_EXEC) | |
6316 | && (PL_hints & HINT_STRICT_SUBS)) | |
6317 | pl_yylval.opval->op_private |= OPpCONST_STRICT; | |
041457d9 DM |
6318 | if (lastchar != '-') { |
6319 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
6320 | d = PL_tokenbuf; |
6321 | while (isLOWER(*d)) | |
6322 | d++; | |
da51bb9b | 6323 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 6324 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
6325 | PL_tokenbuf); |
6326 | } | |
748a9306 LW |
6327 | } |
6328 | } | |
f7461760 | 6329 | op_free(rv2cv_op); |
c3e0f903 GS |
6330 | |
6331 | safe_bareword: | |
9b387841 NC |
6332 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&')) { |
6333 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6334 | "Operator or semicolon missing before %c%s", | |
6335 | lastchar, PL_tokenbuf); | |
6336 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6337 | "Ambiguous use of %c resolved as operator %c", | |
6338 | lastchar, lastchar); | |
748a9306 | 6339 | } |
93a17b20 | 6340 | TOKEN(WORD); |
79072805 | 6341 | } |
79072805 | 6342 | |
68dc0745 | 6343 | case KEY___FILE__: |
6154021b | 6344 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 6345 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 6346 | TERM(THING); |
6347 | ||
79072805 | 6348 | case KEY___LINE__: |
6154021b | 6349 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 6350 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 6351 | TERM(THING); |
68dc0745 | 6352 | |
6353 | case KEY___PACKAGE__: | |
6154021b | 6354 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 6355 | (PL_curstash |
5aaec2b4 | 6356 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 6357 | : &PL_sv_undef)); |
79072805 | 6358 | TERM(THING); |
79072805 | 6359 | |
e50aee73 | 6360 | case KEY___DATA__: |
79072805 LW |
6361 | case KEY___END__: { |
6362 | GV *gv; | |
3280af22 | 6363 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 6364 | const char *pname = "main"; |
3280af22 | 6365 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 6366 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
6367 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
6368 | SVt_PVIO); | |
a5f75d66 | 6369 | GvMULTI_on(gv); |
79072805 | 6370 | if (!GvIO(gv)) |
a0d0e21e | 6371 | GvIOp(gv) = newIO(); |
3280af22 | 6372 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
6373 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
6374 | { | |
f54cb97a | 6375 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
6376 | fcntl(fd,F_SETFD,fd >= 3); |
6377 | } | |
79072805 | 6378 | #endif |
fd049845 | 6379 | /* Mark this internal pseudo-handle as clean */ |
6380 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 6381 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 6382 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 6383 | else |
50952442 | 6384 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
6385 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
6386 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 6387 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 6388 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
6389 | if (PL_bufend-PL_bufptr > 2 |
6390 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
6391 | { |
6392 | Off_t loc = 0; | |
50952442 | 6393 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
6394 | loc = PerlIO_tell(PL_rsfp); |
6395 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
6396 | } | |
2986a63f JH |
6397 | #ifdef NETWARE |
6398 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
6399 | #else | |
c39cd008 | 6400 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 6401 | #endif /* NETWARE */ |
1143fce0 JH |
6402 | #ifdef PERLIO_IS_STDIO /* really? */ |
6403 | # if defined(__BORLANDC__) | |
cb359b41 JH |
6404 | /* XXX see note in do_binmode() */ |
6405 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
6406 | # endif |
6407 | #endif | |
c39cd008 GS |
6408 | if (loc > 0) |
6409 | PerlIO_seek(PL_rsfp, loc, 0); | |
6410 | } | |
6411 | } | |
6412 | #endif | |
7948272d | 6413 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
6414 | if (!IN_BYTES) { |
6415 | if (UTF) | |
6416 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
6417 | else if (PL_encoding) { | |
6418 | SV *name; | |
6419 | dSP; | |
6420 | ENTER; | |
6421 | SAVETMPS; | |
6422 | PUSHMARK(sp); | |
6423 | EXTEND(SP, 1); | |
6424 | XPUSHs(PL_encoding); | |
6425 | PUTBACK; | |
6426 | call_method("name", G_SCALAR); | |
6427 | SPAGAIN; | |
6428 | name = POPs; | |
6429 | PUTBACK; | |
bfed75c6 | 6430 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 6431 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 6432 | SVfARG(name))); |
52d2e0f4 JH |
6433 | FREETMPS; |
6434 | LEAVE; | |
6435 | } | |
6436 | } | |
7948272d | 6437 | #endif |
5db06880 NC |
6438 | #ifdef PERL_MAD |
6439 | if (PL_madskills) { | |
cd81e915 NC |
6440 | if (PL_realtokenstart >= 0) { |
6441 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
6442 | if (!PL_endwhite) | |
6b29d1f5 | 6443 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
6444 | sv_catsv(PL_endwhite, PL_thiswhite); |
6445 | PL_thiswhite = 0; | |
6446 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
6447 | PL_realtokenstart = -1; | |
5db06880 | 6448 | } |
5cc814fd NC |
6449 | while ((s = filter_gets(PL_endwhite, SvCUR(PL_endwhite))) |
6450 | != NULL) ; | |
5db06880 NC |
6451 | } |
6452 | #endif | |
4608196e | 6453 | PL_rsfp = NULL; |
79072805 LW |
6454 | } |
6455 | goto fake_eof; | |
e929a76b | 6456 | } |
de3bb511 | 6457 | |
8990e307 | 6458 | case KEY_AUTOLOAD: |
ed6116ce | 6459 | case KEY_DESTROY: |
79072805 | 6460 | case KEY_BEGIN: |
3c10abe3 | 6461 | case KEY_UNITCHECK: |
7d30b5c4 | 6462 | case KEY_CHECK: |
7d07dbc2 | 6463 | case KEY_INIT: |
7d30b5c4 | 6464 | case KEY_END: |
3280af22 NIS |
6465 | if (PL_expect == XSTATE) { |
6466 | s = PL_bufptr; | |
93a17b20 | 6467 | goto really_sub; |
79072805 LW |
6468 | } |
6469 | goto just_a_word; | |
6470 | ||
a0d0e21e LW |
6471 | case KEY_CORE: |
6472 | if (*s == ':' && s[1] == ':') { | |
6473 | s += 2; | |
748a9306 | 6474 | d = s; |
3280af22 | 6475 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 6476 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 6477 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
6478 | if (tmp < 0) |
6479 | tmp = -tmp; | |
850e8516 | 6480 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 6481 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 6482 | orig_keyword = tmp; |
a0d0e21e LW |
6483 | goto reserved_word; |
6484 | } | |
6485 | goto just_a_word; | |
6486 | ||
463ee0b2 LW |
6487 | case KEY_abs: |
6488 | UNI(OP_ABS); | |
6489 | ||
79072805 LW |
6490 | case KEY_alarm: |
6491 | UNI(OP_ALARM); | |
6492 | ||
6493 | case KEY_accept: | |
a0d0e21e | 6494 | LOP(OP_ACCEPT,XTERM); |
79072805 | 6495 | |
463ee0b2 LW |
6496 | case KEY_and: |
6497 | OPERATOR(ANDOP); | |
6498 | ||
79072805 | 6499 | case KEY_atan2: |
a0d0e21e | 6500 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 6501 | |
79072805 | 6502 | case KEY_bind: |
a0d0e21e | 6503 | LOP(OP_BIND,XTERM); |
79072805 LW |
6504 | |
6505 | case KEY_binmode: | |
1c1fc3ea | 6506 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
6507 | |
6508 | case KEY_bless: | |
a0d0e21e | 6509 | LOP(OP_BLESS,XTERM); |
79072805 | 6510 | |
0d863452 RH |
6511 | case KEY_break: |
6512 | FUN0(OP_BREAK); | |
6513 | ||
79072805 LW |
6514 | case KEY_chop: |
6515 | UNI(OP_CHOP); | |
6516 | ||
6517 | case KEY_continue: | |
0d863452 RH |
6518 | /* When 'use switch' is in effect, continue has a dual |
6519 | life as a control operator. */ | |
6520 | { | |
ef89dcc3 | 6521 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
6522 | PREBLOCK(CONTINUE); |
6523 | else { | |
6524 | /* We have to disambiguate the two senses of | |
6525 | "continue". If the next token is a '{' then | |
6526 | treat it as the start of a continue block; | |
6527 | otherwise treat it as a control operator. | |
6528 | */ | |
6529 | s = skipspace(s); | |
6530 | if (*s == '{') | |
79072805 | 6531 | PREBLOCK(CONTINUE); |
0d863452 RH |
6532 | else |
6533 | FUN0(OP_CONTINUE); | |
6534 | } | |
6535 | } | |
79072805 LW |
6536 | |
6537 | case KEY_chdir: | |
fafc274c NC |
6538 | /* may use HOME */ |
6539 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
6540 | UNI(OP_CHDIR); |
6541 | ||
6542 | case KEY_close: | |
6543 | UNI(OP_CLOSE); | |
6544 | ||
6545 | case KEY_closedir: | |
6546 | UNI(OP_CLOSEDIR); | |
6547 | ||
6548 | case KEY_cmp: | |
6549 | Eop(OP_SCMP); | |
6550 | ||
6551 | case KEY_caller: | |
6552 | UNI(OP_CALLER); | |
6553 | ||
6554 | case KEY_crypt: | |
6555 | #ifdef FCRYPT | |
f4c556ac GS |
6556 | if (!PL_cryptseen) { |
6557 | PL_cryptseen = TRUE; | |
de3bb511 | 6558 | init_des(); |
f4c556ac | 6559 | } |
a687059c | 6560 | #endif |
a0d0e21e | 6561 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
6562 | |
6563 | case KEY_chmod: | |
a0d0e21e | 6564 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
6565 | |
6566 | case KEY_chown: | |
a0d0e21e | 6567 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
6568 | |
6569 | case KEY_connect: | |
a0d0e21e | 6570 | LOP(OP_CONNECT,XTERM); |
79072805 | 6571 | |
463ee0b2 LW |
6572 | case KEY_chr: |
6573 | UNI(OP_CHR); | |
6574 | ||
79072805 LW |
6575 | case KEY_cos: |
6576 | UNI(OP_COS); | |
6577 | ||
6578 | case KEY_chroot: | |
6579 | UNI(OP_CHROOT); | |
6580 | ||
0d863452 RH |
6581 | case KEY_default: |
6582 | PREBLOCK(DEFAULT); | |
6583 | ||
79072805 | 6584 | case KEY_do: |
29595ff2 | 6585 | s = SKIPSPACE1(s); |
79072805 | 6586 | if (*s == '{') |
a0d0e21e | 6587 | PRETERMBLOCK(DO); |
79072805 | 6588 | if (*s != '\'') |
89c5585f | 6589 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
6590 | if (orig_keyword == KEY_do) { |
6591 | orig_keyword = 0; | |
6154021b | 6592 | pl_yylval.ival = 1; |
850e8516 RGS |
6593 | } |
6594 | else | |
6154021b | 6595 | pl_yylval.ival = 0; |
378cc40b | 6596 | OPERATOR(DO); |
79072805 LW |
6597 | |
6598 | case KEY_die: | |
3280af22 | 6599 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6600 | LOP(OP_DIE,XTERM); |
79072805 LW |
6601 | |
6602 | case KEY_defined: | |
6603 | UNI(OP_DEFINED); | |
6604 | ||
6605 | case KEY_delete: | |
a0d0e21e | 6606 | UNI(OP_DELETE); |
79072805 LW |
6607 | |
6608 | case KEY_dbmopen: | |
5c1737d1 | 6609 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 6610 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
6611 | |
6612 | case KEY_dbmclose: | |
6613 | UNI(OP_DBMCLOSE); | |
6614 | ||
6615 | case KEY_dump: | |
a0d0e21e | 6616 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6617 | LOOPX(OP_DUMP); |
6618 | ||
6619 | case KEY_else: | |
6620 | PREBLOCK(ELSE); | |
6621 | ||
6622 | case KEY_elsif: | |
6154021b | 6623 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6624 | OPERATOR(ELSIF); |
6625 | ||
6626 | case KEY_eq: | |
6627 | Eop(OP_SEQ); | |
6628 | ||
a0d0e21e LW |
6629 | case KEY_exists: |
6630 | UNI(OP_EXISTS); | |
4e553d73 | 6631 | |
79072805 | 6632 | case KEY_exit: |
5db06880 NC |
6633 | if (PL_madskills) |
6634 | UNI(OP_INT); | |
79072805 LW |
6635 | UNI(OP_EXIT); |
6636 | ||
6637 | case KEY_eval: | |
29595ff2 | 6638 | s = SKIPSPACE1(s); |
32e2a35d RGS |
6639 | if (*s == '{') { /* block eval */ |
6640 | PL_expect = XTERMBLOCK; | |
6641 | UNIBRACK(OP_ENTERTRY); | |
6642 | } | |
6643 | else { /* string eval */ | |
6644 | PL_expect = XTERM; | |
6645 | UNIBRACK(OP_ENTEREVAL); | |
6646 | } | |
79072805 LW |
6647 | |
6648 | case KEY_eof: | |
6649 | UNI(OP_EOF); | |
6650 | ||
6651 | case KEY_exp: | |
6652 | UNI(OP_EXP); | |
6653 | ||
6654 | case KEY_each: | |
6655 | UNI(OP_EACH); | |
6656 | ||
6657 | case KEY_exec: | |
a0d0e21e | 6658 | LOP(OP_EXEC,XREF); |
79072805 LW |
6659 | |
6660 | case KEY_endhostent: | |
6661 | FUN0(OP_EHOSTENT); | |
6662 | ||
6663 | case KEY_endnetent: | |
6664 | FUN0(OP_ENETENT); | |
6665 | ||
6666 | case KEY_endservent: | |
6667 | FUN0(OP_ESERVENT); | |
6668 | ||
6669 | case KEY_endprotoent: | |
6670 | FUN0(OP_EPROTOENT); | |
6671 | ||
6672 | case KEY_endpwent: | |
6673 | FUN0(OP_EPWENT); | |
6674 | ||
6675 | case KEY_endgrent: | |
6676 | FUN0(OP_EGRENT); | |
6677 | ||
6678 | case KEY_for: | |
6679 | case KEY_foreach: | |
6154021b | 6680 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 6681 | s = SKIPSPACE1(s); |
7e2040f0 | 6682 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 6683 | char *p = s; |
5db06880 NC |
6684 | #ifdef PERL_MAD |
6685 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
6686 | #endif | |
6687 | ||
3280af22 | 6688 | if ((PL_bufend - p) >= 3 && |
55497cff | 6689 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
6690 | p += 2; | |
77ca0c92 LW |
6691 | else if ((PL_bufend - p) >= 4 && |
6692 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
6693 | p += 3; | |
29595ff2 | 6694 | p = PEEKSPACE(p); |
7e2040f0 | 6695 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
6696 | p = scan_ident(p, PL_bufend, |
6697 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 6698 | p = PEEKSPACE(p); |
77ca0c92 LW |
6699 | } |
6700 | if (*p != '$') | |
cea2e8a9 | 6701 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
6702 | #ifdef PERL_MAD |
6703 | s = SvPVX(PL_linestr) + soff; | |
6704 | #endif | |
55497cff | 6705 | } |
79072805 LW |
6706 | OPERATOR(FOR); |
6707 | ||
6708 | case KEY_formline: | |
a0d0e21e | 6709 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
6710 | |
6711 | case KEY_fork: | |
6712 | FUN0(OP_FORK); | |
6713 | ||
6714 | case KEY_fcntl: | |
a0d0e21e | 6715 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
6716 | |
6717 | case KEY_fileno: | |
6718 | UNI(OP_FILENO); | |
6719 | ||
6720 | case KEY_flock: | |
a0d0e21e | 6721 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
6722 | |
6723 | case KEY_gt: | |
6724 | Rop(OP_SGT); | |
6725 | ||
6726 | case KEY_ge: | |
6727 | Rop(OP_SGE); | |
6728 | ||
6729 | case KEY_grep: | |
2c38e13d | 6730 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
6731 | |
6732 | case KEY_goto: | |
a0d0e21e | 6733 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6734 | LOOPX(OP_GOTO); |
6735 | ||
6736 | case KEY_gmtime: | |
6737 | UNI(OP_GMTIME); | |
6738 | ||
6739 | case KEY_getc: | |
6f33ba73 | 6740 | UNIDOR(OP_GETC); |
79072805 LW |
6741 | |
6742 | case KEY_getppid: | |
6743 | FUN0(OP_GETPPID); | |
6744 | ||
6745 | case KEY_getpgrp: | |
6746 | UNI(OP_GETPGRP); | |
6747 | ||
6748 | case KEY_getpriority: | |
a0d0e21e | 6749 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6750 | |
6751 | case KEY_getprotobyname: | |
6752 | UNI(OP_GPBYNAME); | |
6753 | ||
6754 | case KEY_getprotobynumber: | |
a0d0e21e | 6755 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6756 | |
6757 | case KEY_getprotoent: | |
6758 | FUN0(OP_GPROTOENT); | |
6759 | ||
6760 | case KEY_getpwent: | |
6761 | FUN0(OP_GPWENT); | |
6762 | ||
6763 | case KEY_getpwnam: | |
ff68c719 | 6764 | UNI(OP_GPWNAM); |
79072805 LW |
6765 | |
6766 | case KEY_getpwuid: | |
ff68c719 | 6767 | UNI(OP_GPWUID); |
79072805 LW |
6768 | |
6769 | case KEY_getpeername: | |
6770 | UNI(OP_GETPEERNAME); | |
6771 | ||
6772 | case KEY_gethostbyname: | |
6773 | UNI(OP_GHBYNAME); | |
6774 | ||
6775 | case KEY_gethostbyaddr: | |
a0d0e21e | 6776 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6777 | |
6778 | case KEY_gethostent: | |
6779 | FUN0(OP_GHOSTENT); | |
6780 | ||
6781 | case KEY_getnetbyname: | |
6782 | UNI(OP_GNBYNAME); | |
6783 | ||
6784 | case KEY_getnetbyaddr: | |
a0d0e21e | 6785 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6786 | |
6787 | case KEY_getnetent: | |
6788 | FUN0(OP_GNETENT); | |
6789 | ||
6790 | case KEY_getservbyname: | |
a0d0e21e | 6791 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6792 | |
6793 | case KEY_getservbyport: | |
a0d0e21e | 6794 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6795 | |
6796 | case KEY_getservent: | |
6797 | FUN0(OP_GSERVENT); | |
6798 | ||
6799 | case KEY_getsockname: | |
6800 | UNI(OP_GETSOCKNAME); | |
6801 | ||
6802 | case KEY_getsockopt: | |
a0d0e21e | 6803 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6804 | |
6805 | case KEY_getgrent: | |
6806 | FUN0(OP_GGRENT); | |
6807 | ||
6808 | case KEY_getgrnam: | |
ff68c719 | 6809 | UNI(OP_GGRNAM); |
79072805 LW |
6810 | |
6811 | case KEY_getgrgid: | |
ff68c719 | 6812 | UNI(OP_GGRGID); |
79072805 LW |
6813 | |
6814 | case KEY_getlogin: | |
6815 | FUN0(OP_GETLOGIN); | |
6816 | ||
0d863452 | 6817 | case KEY_given: |
6154021b | 6818 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6819 | OPERATOR(GIVEN); |
6820 | ||
93a17b20 | 6821 | case KEY_glob: |
a0d0e21e | 6822 | LOP(OP_GLOB,XTERM); |
93a17b20 | 6823 | |
79072805 LW |
6824 | case KEY_hex: |
6825 | UNI(OP_HEX); | |
6826 | ||
6827 | case KEY_if: | |
6154021b | 6828 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6829 | OPERATOR(IF); |
6830 | ||
6831 | case KEY_index: | |
a0d0e21e | 6832 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6833 | |
6834 | case KEY_int: | |
6835 | UNI(OP_INT); | |
6836 | ||
6837 | case KEY_ioctl: | |
a0d0e21e | 6838 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6839 | |
6840 | case KEY_join: | |
a0d0e21e | 6841 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6842 | |
6843 | case KEY_keys: | |
6844 | UNI(OP_KEYS); | |
6845 | ||
6846 | case KEY_kill: | |
a0d0e21e | 6847 | LOP(OP_KILL,XTERM); |
79072805 LW |
6848 | |
6849 | case KEY_last: | |
a0d0e21e | 6850 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6851 | LOOPX(OP_LAST); |
4e553d73 | 6852 | |
79072805 LW |
6853 | case KEY_lc: |
6854 | UNI(OP_LC); | |
6855 | ||
6856 | case KEY_lcfirst: | |
6857 | UNI(OP_LCFIRST); | |
6858 | ||
6859 | case KEY_local: | |
6154021b | 6860 | pl_yylval.ival = 0; |
79072805 LW |
6861 | OPERATOR(LOCAL); |
6862 | ||
6863 | case KEY_length: | |
6864 | UNI(OP_LENGTH); | |
6865 | ||
6866 | case KEY_lt: | |
6867 | Rop(OP_SLT); | |
6868 | ||
6869 | case KEY_le: | |
6870 | Rop(OP_SLE); | |
6871 | ||
6872 | case KEY_localtime: | |
6873 | UNI(OP_LOCALTIME); | |
6874 | ||
6875 | case KEY_log: | |
6876 | UNI(OP_LOG); | |
6877 | ||
6878 | case KEY_link: | |
a0d0e21e | 6879 | LOP(OP_LINK,XTERM); |
79072805 LW |
6880 | |
6881 | case KEY_listen: | |
a0d0e21e | 6882 | LOP(OP_LISTEN,XTERM); |
79072805 | 6883 | |
c0329465 MB |
6884 | case KEY_lock: |
6885 | UNI(OP_LOCK); | |
6886 | ||
79072805 LW |
6887 | case KEY_lstat: |
6888 | UNI(OP_LSTAT); | |
6889 | ||
6890 | case KEY_m: | |
8782bef2 | 6891 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6892 | TERM(sublex_start()); |
6893 | ||
a0d0e21e | 6894 | case KEY_map: |
2c38e13d | 6895 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6896 | |
79072805 | 6897 | case KEY_mkdir: |
a0d0e21e | 6898 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6899 | |
6900 | case KEY_msgctl: | |
a0d0e21e | 6901 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6902 | |
6903 | case KEY_msgget: | |
a0d0e21e | 6904 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6905 | |
6906 | case KEY_msgrcv: | |
a0d0e21e | 6907 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6908 | |
6909 | case KEY_msgsnd: | |
a0d0e21e | 6910 | LOP(OP_MSGSND,XTERM); |
79072805 | 6911 | |
77ca0c92 | 6912 | case KEY_our: |
93a17b20 | 6913 | case KEY_my: |
952306ac | 6914 | case KEY_state: |
eac04b2e | 6915 | PL_in_my = (U16)tmp; |
29595ff2 | 6916 | s = SKIPSPACE1(s); |
7e2040f0 | 6917 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6918 | #ifdef PERL_MAD |
6919 | char* start = s; | |
6920 | #endif | |
3280af22 | 6921 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6922 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6923 | goto really_sub; | |
def3634b | 6924 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6925 | if (!PL_in_my_stash) { |
c750a3ec | 6926 | char tmpbuf[1024]; |
3280af22 | 6927 | PL_bufptr = s; |
d9fad198 | 6928 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6929 | yyerror(tmpbuf); |
6930 | } | |
5db06880 NC |
6931 | #ifdef PERL_MAD |
6932 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6933 | sv_catsv(PL_thistoken, PL_nextwhite); |
6934 | PL_nextwhite = 0; | |
6935 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6936 | } |
6937 | #endif | |
c750a3ec | 6938 | } |
6154021b | 6939 | pl_yylval.ival = 1; |
55497cff | 6940 | OPERATOR(MY); |
93a17b20 | 6941 | |
79072805 | 6942 | case KEY_next: |
a0d0e21e | 6943 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6944 | LOOPX(OP_NEXT); |
6945 | ||
6946 | case KEY_ne: | |
6947 | Eop(OP_SNE); | |
6948 | ||
a0d0e21e | 6949 | case KEY_no: |
468aa647 | 6950 | s = tokenize_use(0, s); |
a0d0e21e LW |
6951 | OPERATOR(USE); |
6952 | ||
6953 | case KEY_not: | |
29595ff2 | 6954 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6955 | FUN1(OP_NOT); |
6956 | else | |
6957 | OPERATOR(NOTOP); | |
a0d0e21e | 6958 | |
79072805 | 6959 | case KEY_open: |
29595ff2 | 6960 | s = SKIPSPACE1(s); |
7e2040f0 | 6961 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6962 | const char *t; |
c35e046a AL |
6963 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6964 | d++; | |
6965 | for (t=d; isSPACE(*t);) | |
6966 | t++; | |
e2ab214b | 6967 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6968 | /* [perl #16184] */ |
6969 | && !(t[0] == '=' && t[1] == '>') | |
6970 | ) { | |
5f66b61c | 6971 | int parms_len = (int)(d-s); |
9014280d | 6972 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6973 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6974 | parms_len, s, parms_len, s); |
66fbe8fb | 6975 | } |
93a17b20 | 6976 | } |
a0d0e21e | 6977 | LOP(OP_OPEN,XTERM); |
79072805 | 6978 | |
463ee0b2 | 6979 | case KEY_or: |
6154021b | 6980 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
6981 | OPERATOR(OROP); |
6982 | ||
79072805 LW |
6983 | case KEY_ord: |
6984 | UNI(OP_ORD); | |
6985 | ||
6986 | case KEY_oct: | |
6987 | UNI(OP_OCT); | |
6988 | ||
6989 | case KEY_opendir: | |
a0d0e21e | 6990 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6991 | |
6992 | case KEY_print: | |
3280af22 | 6993 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6994 | LOP(OP_PRINT,XREF); |
79072805 LW |
6995 | |
6996 | case KEY_printf: | |
3280af22 | 6997 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6998 | LOP(OP_PRTF,XREF); |
79072805 | 6999 | |
c07a80fd | 7000 | case KEY_prototype: |
7001 | UNI(OP_PROTOTYPE); | |
7002 | ||
79072805 | 7003 | case KEY_push: |
a0d0e21e | 7004 | LOP(OP_PUSH,XTERM); |
79072805 LW |
7005 | |
7006 | case KEY_pop: | |
6f33ba73 | 7007 | UNIDOR(OP_POP); |
79072805 | 7008 | |
a0d0e21e | 7009 | case KEY_pos: |
6f33ba73 | 7010 | UNIDOR(OP_POS); |
4e553d73 | 7011 | |
79072805 | 7012 | case KEY_pack: |
a0d0e21e | 7013 | LOP(OP_PACK,XTERM); |
79072805 LW |
7014 | |
7015 | case KEY_package: | |
a0d0e21e | 7016 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
14a86d0c | 7017 | s = SKIPSPACE1(s); |
91152fc1 | 7018 | s = force_strict_version(s); |
79072805 LW |
7019 | OPERATOR(PACKAGE); |
7020 | ||
7021 | case KEY_pipe: | |
a0d0e21e | 7022 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
7023 | |
7024 | case KEY_q: | |
5db06880 | 7025 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7026 | if (!s) |
d4c19fe8 | 7027 | missingterm(NULL); |
6154021b | 7028 | pl_yylval.ival = OP_CONST; |
79072805 LW |
7029 | TERM(sublex_start()); |
7030 | ||
a0d0e21e LW |
7031 | case KEY_quotemeta: |
7032 | UNI(OP_QUOTEMETA); | |
7033 | ||
8990e307 | 7034 | case KEY_qw: |
5db06880 | 7035 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 7036 | if (!s) |
d4c19fe8 | 7037 | missingterm(NULL); |
3480a8d2 | 7038 | PL_expect = XOPERATOR; |
8127e0e3 GS |
7039 | force_next(')'); |
7040 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 7041 | OP *words = NULL; |
8127e0e3 | 7042 | int warned = 0; |
3280af22 | 7043 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 7044 | while (len) { |
d4c19fe8 AL |
7045 | for (; isSPACE(*d) && len; --len, ++d) |
7046 | /**/; | |
8127e0e3 | 7047 | if (len) { |
d4c19fe8 | 7048 | SV *sv; |
f54cb97a | 7049 | const char *b = d; |
e476b1b5 | 7050 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
7051 | for (; !isSPACE(*d) && len; --len, ++d) { |
7052 | if (*d == ',') { | |
9014280d | 7053 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7054 | "Possible attempt to separate words with commas"); |
7055 | ++warned; | |
7056 | } | |
7057 | else if (*d == '#') { | |
9014280d | 7058 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7059 | "Possible attempt to put comments in qw() list"); |
7060 | ++warned; | |
7061 | } | |
7062 | } | |
7063 | } | |
7064 | else { | |
d4c19fe8 AL |
7065 | for (; !isSPACE(*d) && len; --len, ++d) |
7066 | /**/; | |
8127e0e3 | 7067 | } |
740cce10 | 7068 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 7069 | words = append_elem(OP_LIST, words, |
7948272d | 7070 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 7071 | } |
7072 | } | |
8127e0e3 | 7073 | if (words) { |
cd81e915 | 7074 | start_force(PL_curforce); |
9ded7720 | 7075 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
7076 | force_next(THING); |
7077 | } | |
55497cff | 7078 | } |
37fd879b | 7079 | if (PL_lex_stuff) { |
8127e0e3 | 7080 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 7081 | PL_lex_stuff = NULL; |
37fd879b | 7082 | } |
3280af22 | 7083 | PL_expect = XTERM; |
8127e0e3 | 7084 | TOKEN('('); |
8990e307 | 7085 | |
79072805 | 7086 | case KEY_qq: |
5db06880 | 7087 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7088 | if (!s) |
d4c19fe8 | 7089 | missingterm(NULL); |
6154021b | 7090 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 7091 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 7092 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
7093 | TERM(sublex_start()); |
7094 | ||
8782bef2 GB |
7095 | case KEY_qr: |
7096 | s = scan_pat(s,OP_QR); | |
7097 | TERM(sublex_start()); | |
7098 | ||
79072805 | 7099 | case KEY_qx: |
5db06880 | 7100 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7101 | if (!s) |
d4c19fe8 | 7102 | missingterm(NULL); |
9b201d7d | 7103 | readpipe_override(); |
79072805 LW |
7104 | TERM(sublex_start()); |
7105 | ||
7106 | case KEY_return: | |
7107 | OLDLOP(OP_RETURN); | |
7108 | ||
7109 | case KEY_require: | |
29595ff2 | 7110 | s = SKIPSPACE1(s); |
e759cc13 RGS |
7111 | if (isDIGIT(*s)) { |
7112 | s = force_version(s, FALSE); | |
a7cb1f99 | 7113 | } |
e759cc13 RGS |
7114 | else if (*s != 'v' || !isDIGIT(s[1]) |
7115 | || (s = force_version(s, TRUE), *s == 'v')) | |
7116 | { | |
a7cb1f99 GS |
7117 | *PL_tokenbuf = '\0'; |
7118 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 7119 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 7120 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
7121 | else if (*s == '<') |
7122 | yyerror("<> should be quotes"); | |
7123 | } | |
a72a1c8b RGS |
7124 | if (orig_keyword == KEY_require) { |
7125 | orig_keyword = 0; | |
6154021b | 7126 | pl_yylval.ival = 1; |
a72a1c8b RGS |
7127 | } |
7128 | else | |
6154021b | 7129 | pl_yylval.ival = 0; |
a72a1c8b RGS |
7130 | PL_expect = XTERM; |
7131 | PL_bufptr = s; | |
7132 | PL_last_uni = PL_oldbufptr; | |
7133 | PL_last_lop_op = OP_REQUIRE; | |
7134 | s = skipspace(s); | |
7135 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
7136 | |
7137 | case KEY_reset: | |
7138 | UNI(OP_RESET); | |
7139 | ||
7140 | case KEY_redo: | |
a0d0e21e | 7141 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7142 | LOOPX(OP_REDO); |
7143 | ||
7144 | case KEY_rename: | |
a0d0e21e | 7145 | LOP(OP_RENAME,XTERM); |
79072805 LW |
7146 | |
7147 | case KEY_rand: | |
7148 | UNI(OP_RAND); | |
7149 | ||
7150 | case KEY_rmdir: | |
7151 | UNI(OP_RMDIR); | |
7152 | ||
7153 | case KEY_rindex: | |
a0d0e21e | 7154 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
7155 | |
7156 | case KEY_read: | |
a0d0e21e | 7157 | LOP(OP_READ,XTERM); |
79072805 LW |
7158 | |
7159 | case KEY_readdir: | |
7160 | UNI(OP_READDIR); | |
7161 | ||
93a17b20 | 7162 | case KEY_readline: |
6f33ba73 | 7163 | UNIDOR(OP_READLINE); |
93a17b20 LW |
7164 | |
7165 | case KEY_readpipe: | |
0858480c | 7166 | UNIDOR(OP_BACKTICK); |
93a17b20 | 7167 | |
79072805 LW |
7168 | case KEY_rewinddir: |
7169 | UNI(OP_REWINDDIR); | |
7170 | ||
7171 | case KEY_recv: | |
a0d0e21e | 7172 | LOP(OP_RECV,XTERM); |
79072805 LW |
7173 | |
7174 | case KEY_reverse: | |
a0d0e21e | 7175 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
7176 | |
7177 | case KEY_readlink: | |
6f33ba73 | 7178 | UNIDOR(OP_READLINK); |
79072805 LW |
7179 | |
7180 | case KEY_ref: | |
7181 | UNI(OP_REF); | |
7182 | ||
7183 | case KEY_s: | |
7184 | s = scan_subst(s); | |
6154021b | 7185 | if (pl_yylval.opval) |
79072805 LW |
7186 | TERM(sublex_start()); |
7187 | else | |
7188 | TOKEN(1); /* force error */ | |
7189 | ||
0d863452 RH |
7190 | case KEY_say: |
7191 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
7192 | LOP(OP_SAY,XREF); | |
7193 | ||
a0d0e21e LW |
7194 | case KEY_chomp: |
7195 | UNI(OP_CHOMP); | |
4e553d73 | 7196 | |
79072805 LW |
7197 | case KEY_scalar: |
7198 | UNI(OP_SCALAR); | |
7199 | ||
7200 | case KEY_select: | |
a0d0e21e | 7201 | LOP(OP_SELECT,XTERM); |
79072805 LW |
7202 | |
7203 | case KEY_seek: | |
a0d0e21e | 7204 | LOP(OP_SEEK,XTERM); |
79072805 LW |
7205 | |
7206 | case KEY_semctl: | |
a0d0e21e | 7207 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
7208 | |
7209 | case KEY_semget: | |
a0d0e21e | 7210 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
7211 | |
7212 | case KEY_semop: | |
a0d0e21e | 7213 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
7214 | |
7215 | case KEY_send: | |
a0d0e21e | 7216 | LOP(OP_SEND,XTERM); |
79072805 LW |
7217 | |
7218 | case KEY_setpgrp: | |
a0d0e21e | 7219 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
7220 | |
7221 | case KEY_setpriority: | |
a0d0e21e | 7222 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
7223 | |
7224 | case KEY_sethostent: | |
ff68c719 | 7225 | UNI(OP_SHOSTENT); |
79072805 LW |
7226 | |
7227 | case KEY_setnetent: | |
ff68c719 | 7228 | UNI(OP_SNETENT); |
79072805 LW |
7229 | |
7230 | case KEY_setservent: | |
ff68c719 | 7231 | UNI(OP_SSERVENT); |
79072805 LW |
7232 | |
7233 | case KEY_setprotoent: | |
ff68c719 | 7234 | UNI(OP_SPROTOENT); |
79072805 LW |
7235 | |
7236 | case KEY_setpwent: | |
7237 | FUN0(OP_SPWENT); | |
7238 | ||
7239 | case KEY_setgrent: | |
7240 | FUN0(OP_SGRENT); | |
7241 | ||
7242 | case KEY_seekdir: | |
a0d0e21e | 7243 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
7244 | |
7245 | case KEY_setsockopt: | |
a0d0e21e | 7246 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
7247 | |
7248 | case KEY_shift: | |
6f33ba73 | 7249 | UNIDOR(OP_SHIFT); |
79072805 LW |
7250 | |
7251 | case KEY_shmctl: | |
a0d0e21e | 7252 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
7253 | |
7254 | case KEY_shmget: | |
a0d0e21e | 7255 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
7256 | |
7257 | case KEY_shmread: | |
a0d0e21e | 7258 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
7259 | |
7260 | case KEY_shmwrite: | |
a0d0e21e | 7261 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
7262 | |
7263 | case KEY_shutdown: | |
a0d0e21e | 7264 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
7265 | |
7266 | case KEY_sin: | |
7267 | UNI(OP_SIN); | |
7268 | ||
7269 | case KEY_sleep: | |
7270 | UNI(OP_SLEEP); | |
7271 | ||
7272 | case KEY_socket: | |
a0d0e21e | 7273 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
7274 | |
7275 | case KEY_socketpair: | |
a0d0e21e | 7276 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
7277 | |
7278 | case KEY_sort: | |
3280af22 | 7279 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 7280 | s = SKIPSPACE1(s); |
79072805 | 7281 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 7282 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 7283 | PL_expect = XTERM; |
15f0808c | 7284 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 7285 | LOP(OP_SORT,XREF); |
79072805 LW |
7286 | |
7287 | case KEY_split: | |
a0d0e21e | 7288 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
7289 | |
7290 | case KEY_sprintf: | |
a0d0e21e | 7291 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
7292 | |
7293 | case KEY_splice: | |
a0d0e21e | 7294 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
7295 | |
7296 | case KEY_sqrt: | |
7297 | UNI(OP_SQRT); | |
7298 | ||
7299 | case KEY_srand: | |
7300 | UNI(OP_SRAND); | |
7301 | ||
7302 | case KEY_stat: | |
7303 | UNI(OP_STAT); | |
7304 | ||
7305 | case KEY_study: | |
79072805 LW |
7306 | UNI(OP_STUDY); |
7307 | ||
7308 | case KEY_substr: | |
a0d0e21e | 7309 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
7310 | |
7311 | case KEY_format: | |
7312 | case KEY_sub: | |
93a17b20 | 7313 | really_sub: |
09bef843 | 7314 | { |
3280af22 | 7315 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 7316 | SSize_t tboffset = 0; |
09bef843 | 7317 | expectation attrful; |
28cc6278 | 7318 | bool have_name, have_proto; |
f54cb97a | 7319 | const int key = tmp; |
09bef843 | 7320 | |
5db06880 NC |
7321 | #ifdef PERL_MAD |
7322 | SV *tmpwhite = 0; | |
7323 | ||
cd81e915 | 7324 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 7325 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 7326 | PL_thistoken = 0; |
5db06880 NC |
7327 | |
7328 | d = s; | |
7329 | s = SKIPSPACE2(s,tmpwhite); | |
7330 | #else | |
09bef843 | 7331 | s = skipspace(s); |
5db06880 | 7332 | #endif |
09bef843 | 7333 | |
7e2040f0 | 7334 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
7335 | (*s == ':' && s[1] == ':')) |
7336 | { | |
5db06880 | 7337 | #ifdef PERL_MAD |
4f61fd4b | 7338 | SV *nametoke = NULL; |
5db06880 NC |
7339 | #endif |
7340 | ||
09bef843 SB |
7341 | PL_expect = XBLOCK; |
7342 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
7343 | /* remember buffer pos'n for later force_word */ |
7344 | tboffset = s - PL_oldbufptr; | |
09bef843 | 7345 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
7346 | #ifdef PERL_MAD |
7347 | if (PL_madskills) | |
7348 | nametoke = newSVpvn(s, d - s); | |
7349 | #endif | |
6502358f NC |
7350 | if (memchr(tmpbuf, ':', len)) |
7351 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
7352 | else { |
7353 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 7354 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
7355 | sv_catpvn(PL_subname,tmpbuf,len); |
7356 | } | |
09bef843 | 7357 | have_name = TRUE; |
5db06880 NC |
7358 | |
7359 | #ifdef PERL_MAD | |
7360 | ||
7361 | start_force(0); | |
7362 | CURMAD('X', nametoke); | |
7363 | CURMAD('_', tmpwhite); | |
7364 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
7365 | FALSE, TRUE, TRUE); | |
7366 | ||
7367 | s = SKIPSPACE2(d,tmpwhite); | |
7368 | #else | |
7369 | s = skipspace(d); | |
7370 | #endif | |
09bef843 | 7371 | } |
463ee0b2 | 7372 | else { |
09bef843 SB |
7373 | if (key == KEY_my) |
7374 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
7375 | PL_expect = XTERMBLOCK; | |
7376 | attrful = XATTRTERM; | |
76f68e9b | 7377 | sv_setpvs(PL_subname,"?"); |
09bef843 | 7378 | have_name = FALSE; |
463ee0b2 | 7379 | } |
4633a7c4 | 7380 | |
09bef843 SB |
7381 | if (key == KEY_format) { |
7382 | if (*s == '=') | |
7383 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 7384 | #ifdef PERL_MAD |
cd81e915 | 7385 | PL_thistoken = subtoken; |
5db06880 NC |
7386 | s = d; |
7387 | #else | |
09bef843 | 7388 | if (have_name) |
b1b65b59 JH |
7389 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7390 | FALSE, TRUE, TRUE); | |
5db06880 | 7391 | #endif |
09bef843 SB |
7392 | OPERATOR(FORMAT); |
7393 | } | |
79072805 | 7394 | |
09bef843 SB |
7395 | /* Look for a prototype */ |
7396 | if (*s == '(') { | |
d9f2850e RGS |
7397 | char *p; |
7398 | bool bad_proto = FALSE; | |
9e8d7757 RB |
7399 | bool in_brackets = FALSE; |
7400 | char greedy_proto = ' '; | |
7401 | bool proto_after_greedy_proto = FALSE; | |
7402 | bool must_be_last = FALSE; | |
7403 | bool underscore = FALSE; | |
aef2a98a | 7404 | bool seen_underscore = FALSE; |
197afce1 | 7405 | const bool warnillegalproto = ckWARN(WARN_ILLEGALPROTO); |
09bef843 | 7406 | |
5db06880 | 7407 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 7408 | if (!s) |
09bef843 | 7409 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 7410 | /* strip spaces and check for bad characters */ |
09bef843 SB |
7411 | d = SvPVX(PL_lex_stuff); |
7412 | tmp = 0; | |
d9f2850e RGS |
7413 | for (p = d; *p; ++p) { |
7414 | if (!isSPACE(*p)) { | |
7415 | d[tmp++] = *p; | |
9e8d7757 | 7416 | |
197afce1 | 7417 | if (warnillegalproto) { |
9e8d7757 RB |
7418 | if (must_be_last) |
7419 | proto_after_greedy_proto = TRUE; | |
7420 | if (!strchr("$@%*;[]&\\_", *p)) { | |
7421 | bad_proto = TRUE; | |
7422 | } | |
7423 | else { | |
7424 | if ( underscore ) { | |
7425 | if ( *p != ';' ) | |
7426 | bad_proto = TRUE; | |
7427 | underscore = FALSE; | |
7428 | } | |
7429 | if ( *p == '[' ) { | |
7430 | in_brackets = TRUE; | |
7431 | } | |
7432 | else if ( *p == ']' ) { | |
7433 | in_brackets = FALSE; | |
7434 | } | |
7435 | else if ( (*p == '@' || *p == '%') && | |
7436 | ( tmp < 2 || d[tmp-2] != '\\' ) && | |
7437 | !in_brackets ) { | |
7438 | must_be_last = TRUE; | |
7439 | greedy_proto = *p; | |
7440 | } | |
7441 | else if ( *p == '_' ) { | |
aef2a98a | 7442 | underscore = seen_underscore = TRUE; |
9e8d7757 RB |
7443 | } |
7444 | } | |
7445 | } | |
d37a9538 | 7446 | } |
09bef843 | 7447 | } |
d9f2850e | 7448 | d[tmp] = '\0'; |
9e8d7757 | 7449 | if (proto_after_greedy_proto) |
197afce1 | 7450 | Perl_warner(aTHX_ packWARN(WARN_ILLEGALPROTO), |
9e8d7757 RB |
7451 | "Prototype after '%c' for %"SVf" : %s", |
7452 | greedy_proto, SVfARG(PL_subname), d); | |
d9f2850e | 7453 | if (bad_proto) |
197afce1 | 7454 | Perl_warner(aTHX_ packWARN(WARN_ILLEGALPROTO), |
aef2a98a RGS |
7455 | "Illegal character %sin prototype for %"SVf" : %s", |
7456 | seen_underscore ? "after '_' " : "", | |
be2597df | 7457 | SVfARG(PL_subname), d); |
b162af07 | 7458 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 7459 | have_proto = TRUE; |
68dc0745 | 7460 | |
5db06880 NC |
7461 | #ifdef PERL_MAD |
7462 | start_force(0); | |
cd81e915 | 7463 | CURMAD('q', PL_thisopen); |
5db06880 | 7464 | CURMAD('_', tmpwhite); |
cd81e915 NC |
7465 | CURMAD('=', PL_thisstuff); |
7466 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
7467 | NEXTVAL_NEXTTOKE.opval = |
7468 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 7469 | PL_lex_stuff = NULL; |
5db06880 NC |
7470 | force_next(THING); |
7471 | ||
7472 | s = SKIPSPACE2(s,tmpwhite); | |
7473 | #else | |
09bef843 | 7474 | s = skipspace(s); |
5db06880 | 7475 | #endif |
4633a7c4 | 7476 | } |
09bef843 SB |
7477 | else |
7478 | have_proto = FALSE; | |
7479 | ||
7480 | if (*s == ':' && s[1] != ':') | |
7481 | PL_expect = attrful; | |
8e742a20 MHM |
7482 | else if (*s != '{' && key == KEY_sub) { |
7483 | if (!have_name) | |
7484 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
fd909433 | 7485 | else if (*s != ';' && *s != '}') |
be2597df | 7486 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 7487 | } |
09bef843 | 7488 | |
5db06880 NC |
7489 | #ifdef PERL_MAD |
7490 | start_force(0); | |
7491 | if (tmpwhite) { | |
7492 | if (PL_madskills) | |
6b29d1f5 | 7493 | curmad('^', newSVpvs("")); |
5db06880 NC |
7494 | CURMAD('_', tmpwhite); |
7495 | } | |
7496 | force_next(0); | |
7497 | ||
cd81e915 | 7498 | PL_thistoken = subtoken; |
5db06880 | 7499 | #else |
09bef843 | 7500 | if (have_proto) { |
9ded7720 | 7501 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 7502 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 7503 | PL_lex_stuff = NULL; |
09bef843 | 7504 | force_next(THING); |
68dc0745 | 7505 | } |
5db06880 | 7506 | #endif |
09bef843 | 7507 | if (!have_name) { |
49a54bbe NC |
7508 | if (PL_curstash) |
7509 | sv_setpvs(PL_subname, "__ANON__"); | |
7510 | else | |
7511 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 7512 | TOKEN(ANONSUB); |
4633a7c4 | 7513 | } |
5db06880 | 7514 | #ifndef PERL_MAD |
b1b65b59 JH |
7515 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7516 | FALSE, TRUE, TRUE); | |
5db06880 | 7517 | #endif |
09bef843 SB |
7518 | if (key == KEY_my) |
7519 | TOKEN(MYSUB); | |
7520 | TOKEN(SUB); | |
4633a7c4 | 7521 | } |
79072805 LW |
7522 | |
7523 | case KEY_system: | |
a0d0e21e | 7524 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
7525 | |
7526 | case KEY_symlink: | |
a0d0e21e | 7527 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
7528 | |
7529 | case KEY_syscall: | |
a0d0e21e | 7530 | LOP(OP_SYSCALL,XTERM); |
79072805 | 7531 | |
c07a80fd | 7532 | case KEY_sysopen: |
7533 | LOP(OP_SYSOPEN,XTERM); | |
7534 | ||
137443ea | 7535 | case KEY_sysseek: |
7536 | LOP(OP_SYSSEEK,XTERM); | |
7537 | ||
79072805 | 7538 | case KEY_sysread: |
a0d0e21e | 7539 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
7540 | |
7541 | case KEY_syswrite: | |
a0d0e21e | 7542 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
7543 | |
7544 | case KEY_tr: | |
7545 | s = scan_trans(s); | |
7546 | TERM(sublex_start()); | |
7547 | ||
7548 | case KEY_tell: | |
7549 | UNI(OP_TELL); | |
7550 | ||
7551 | case KEY_telldir: | |
7552 | UNI(OP_TELLDIR); | |
7553 | ||
463ee0b2 | 7554 | case KEY_tie: |
a0d0e21e | 7555 | LOP(OP_TIE,XTERM); |
463ee0b2 | 7556 | |
c07a80fd | 7557 | case KEY_tied: |
7558 | UNI(OP_TIED); | |
7559 | ||
79072805 LW |
7560 | case KEY_time: |
7561 | FUN0(OP_TIME); | |
7562 | ||
7563 | case KEY_times: | |
7564 | FUN0(OP_TMS); | |
7565 | ||
7566 | case KEY_truncate: | |
a0d0e21e | 7567 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
7568 | |
7569 | case KEY_uc: | |
7570 | UNI(OP_UC); | |
7571 | ||
7572 | case KEY_ucfirst: | |
7573 | UNI(OP_UCFIRST); | |
7574 | ||
463ee0b2 LW |
7575 | case KEY_untie: |
7576 | UNI(OP_UNTIE); | |
7577 | ||
79072805 | 7578 | case KEY_until: |
6154021b | 7579 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7580 | OPERATOR(UNTIL); |
7581 | ||
7582 | case KEY_unless: | |
6154021b | 7583 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7584 | OPERATOR(UNLESS); |
7585 | ||
7586 | case KEY_unlink: | |
a0d0e21e | 7587 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
7588 | |
7589 | case KEY_undef: | |
6f33ba73 | 7590 | UNIDOR(OP_UNDEF); |
79072805 LW |
7591 | |
7592 | case KEY_unpack: | |
a0d0e21e | 7593 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
7594 | |
7595 | case KEY_utime: | |
a0d0e21e | 7596 | LOP(OP_UTIME,XTERM); |
79072805 LW |
7597 | |
7598 | case KEY_umask: | |
6f33ba73 | 7599 | UNIDOR(OP_UMASK); |
79072805 LW |
7600 | |
7601 | case KEY_unshift: | |
a0d0e21e LW |
7602 | LOP(OP_UNSHIFT,XTERM); |
7603 | ||
7604 | case KEY_use: | |
468aa647 | 7605 | s = tokenize_use(1, s); |
a0d0e21e | 7606 | OPERATOR(USE); |
79072805 LW |
7607 | |
7608 | case KEY_values: | |
7609 | UNI(OP_VALUES); | |
7610 | ||
7611 | case KEY_vec: | |
a0d0e21e | 7612 | LOP(OP_VEC,XTERM); |
79072805 | 7613 | |
0d863452 | 7614 | case KEY_when: |
6154021b | 7615 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
7616 | OPERATOR(WHEN); |
7617 | ||
79072805 | 7618 | case KEY_while: |
6154021b | 7619 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7620 | OPERATOR(WHILE); |
7621 | ||
7622 | case KEY_warn: | |
3280af22 | 7623 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 7624 | LOP(OP_WARN,XTERM); |
79072805 LW |
7625 | |
7626 | case KEY_wait: | |
7627 | FUN0(OP_WAIT); | |
7628 | ||
7629 | case KEY_waitpid: | |
a0d0e21e | 7630 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
7631 | |
7632 | case KEY_wantarray: | |
7633 | FUN0(OP_WANTARRAY); | |
7634 | ||
7635 | case KEY_write: | |
9d116dd7 JH |
7636 | #ifdef EBCDIC |
7637 | { | |
df3728a2 JH |
7638 | char ctl_l[2]; |
7639 | ctl_l[0] = toCTRL('L'); | |
7640 | ctl_l[1] = '\0'; | |
fafc274c | 7641 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
7642 | } |
7643 | #else | |
fafc274c NC |
7644 | /* Make sure $^L is defined */ |
7645 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 7646 | #endif |
79072805 LW |
7647 | UNI(OP_ENTERWRITE); |
7648 | ||
7649 | case KEY_x: | |
3280af22 | 7650 | if (PL_expect == XOPERATOR) |
79072805 LW |
7651 | Mop(OP_REPEAT); |
7652 | check_uni(); | |
7653 | goto just_a_word; | |
7654 | ||
a0d0e21e | 7655 | case KEY_xor: |
6154021b | 7656 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
7657 | OPERATOR(OROP); |
7658 | ||
79072805 LW |
7659 | case KEY_y: |
7660 | s = scan_trans(s); | |
7661 | TERM(sublex_start()); | |
7662 | } | |
49dc05e3 | 7663 | }} |
79072805 | 7664 | } |
bf4acbe4 GS |
7665 | #ifdef __SC__ |
7666 | #pragma segment Main | |
7667 | #endif | |
79072805 | 7668 | |
e930465f JH |
7669 | static int |
7670 | S_pending_ident(pTHX) | |
8eceec63 | 7671 | { |
97aff369 | 7672 | dVAR; |
8eceec63 | 7673 | register char *d; |
bbd11bfc | 7674 | PADOFFSET tmp = 0; |
8eceec63 SC |
7675 | /* pit holds the identifier we read and pending_ident is reset */ |
7676 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
7677 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
7678 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 7679 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
7680 | PL_pending_ident = 0; |
7681 | ||
cd81e915 | 7682 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 7683 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 7684 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
7685 | |
7686 | /* if we're in a my(), we can't allow dynamics here. | |
7687 | $foo'bar has already been turned into $foo::bar, so | |
7688 | just check for colons. | |
7689 | ||
7690 | if it's a legal name, the OP is a PADANY. | |
7691 | */ | |
7692 | if (PL_in_my) { | |
7693 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 7694 | if (has_colon) |
8eceec63 SC |
7695 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
7696 | "variable %s in \"our\"", | |
7697 | PL_tokenbuf)); | |
d6447115 | 7698 | tmp = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7699 | } |
7700 | else { | |
9bde8eb0 | 7701 | if (has_colon) |
952306ac RGS |
7702 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
7703 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 7704 | |
6154021b | 7705 | pl_yylval.opval = newOP(OP_PADANY, 0); |
d6447115 | 7706 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7707 | return PRIVATEREF; |
7708 | } | |
7709 | } | |
7710 | ||
7711 | /* | |
7712 | build the ops for accesses to a my() variable. | |
7713 | ||
7714 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
7715 | then used in a comparison. This catches most, but not | |
7716 | all cases. For instance, it catches | |
7717 | sort { my($a); $a <=> $b } | |
7718 | but not | |
7719 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
7720 | (although why you'd do that is anyone's guess). | |
7721 | */ | |
7722 | ||
9bde8eb0 | 7723 | if (!has_colon) { |
8716503d | 7724 | if (!PL_in_my) |
f8f98e0a | 7725 | tmp = pad_findmy(PL_tokenbuf, tokenbuf_len, 0); |
8716503d | 7726 | if (tmp != NOT_IN_PAD) { |
8eceec63 | 7727 | /* might be an "our" variable" */ |
00b1698f | 7728 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 7729 | /* build ops for a bareword */ |
b64e5050 AL |
7730 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
7731 | HEK * const stashname = HvNAME_HEK(stash); | |
7732 | SV * const sym = newSVhek(stashname); | |
396482e1 | 7733 | sv_catpvs(sym, "::"); |
9bde8eb0 | 7734 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
7735 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
7736 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 7737 | gv_fetchsv(sym, |
8eceec63 SC |
7738 | (PL_in_eval |
7739 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 7740 | : GV_ADDMULTI |
8eceec63 SC |
7741 | ), |
7742 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
7743 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7744 | : SVt_PVHV)); | |
7745 | return WORD; | |
7746 | } | |
7747 | ||
7748 | /* if it's a sort block and they're naming $a or $b */ | |
7749 | if (PL_last_lop_op == OP_SORT && | |
7750 | PL_tokenbuf[0] == '$' && | |
7751 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
7752 | && !PL_tokenbuf[2]) | |
7753 | { | |
7754 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
7755 | d < PL_bufend && *d != '\n'; | |
7756 | d++) | |
7757 | { | |
7758 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
7759 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
7760 | PL_tokenbuf); | |
7761 | } | |
7762 | } | |
7763 | } | |
7764 | ||
6154021b RGS |
7765 | pl_yylval.opval = newOP(OP_PADANY, 0); |
7766 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
7767 | return PRIVATEREF; |
7768 | } | |
7769 | } | |
7770 | ||
7771 | /* | |
7772 | Whine if they've said @foo in a doublequoted string, | |
7773 | and @foo isn't a variable we can find in the symbol | |
7774 | table. | |
7775 | */ | |
d824713b NC |
7776 | if (ckWARN(WARN_AMBIGUOUS) && |
7777 | pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
7778 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
7779 | SVt_PVAV); | |
8eceec63 | 7780 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7781 | /* DO NOT warn for @- and @+ */ |
7782 | && !( PL_tokenbuf[2] == '\0' && | |
7783 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7784 | ) | |
8eceec63 SC |
7785 | { |
7786 | /* Downgraded from fatal to warning 20000522 mjd */ | |
d824713b NC |
7787 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
7788 | "Possible unintended interpolation of %s in string", | |
7789 | PL_tokenbuf); | |
8eceec63 SC |
7790 | } |
7791 | } | |
7792 | ||
7793 | /* build ops for a bareword */ | |
6154021b | 7794 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 7795 | tokenbuf_len - 1)); |
6154021b | 7796 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
9bde8eb0 NC |
7797 | gv_fetchpvn_flags( |
7798 | PL_tokenbuf + 1, tokenbuf_len - 1, | |
d6069db2 RGS |
7799 | /* If the identifier refers to a stash, don't autovivify it. |
7800 | * Change 24660 had the side effect of causing symbol table | |
7801 | * hashes to always be defined, even if they were freshly | |
7802 | * created and the only reference in the entire program was | |
7803 | * the single statement with the defined %foo::bar:: test. | |
7804 | * It appears that all code in the wild doing this actually | |
7805 | * wants to know whether sub-packages have been loaded, so | |
7806 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7807 | * defined %foo::bar:: continues to be false, and the existing | |
7808 | * tests still give the expected answers, even though what | |
7809 | * they're actually testing has now changed subtly. | |
7810 | */ | |
9bde8eb0 NC |
7811 | (*PL_tokenbuf == '%' |
7812 | && *(d = PL_tokenbuf + tokenbuf_len - 1) == ':' | |
7813 | && d[-1] == ':' | |
d6069db2 RGS |
7814 | ? 0 |
7815 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7816 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7817 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7818 | : SVt_PVHV)); | |
8eceec63 SC |
7819 | return WORD; |
7820 | } | |
7821 | ||
4c3bbe0f MHM |
7822 | /* |
7823 | * The following code was generated by perl_keyword.pl. | |
7824 | */ | |
e2e1dd5a | 7825 | |
79072805 | 7826 | I32 |
5458a98a | 7827 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7828 | { |
952306ac | 7829 | dVAR; |
7918f24d NC |
7830 | |
7831 | PERL_ARGS_ASSERT_KEYWORD; | |
7832 | ||
4c3bbe0f MHM |
7833 | switch (len) |
7834 | { | |
7835 | case 1: /* 5 tokens of length 1 */ | |
7836 | switch (name[0]) | |
e2e1dd5a | 7837 | { |
4c3bbe0f MHM |
7838 | case 'm': |
7839 | { /* m */ | |
7840 | return KEY_m; | |
7841 | } | |
7842 | ||
4c3bbe0f MHM |
7843 | case 'q': |
7844 | { /* q */ | |
7845 | return KEY_q; | |
7846 | } | |
7847 | ||
4c3bbe0f MHM |
7848 | case 's': |
7849 | { /* s */ | |
7850 | return KEY_s; | |
7851 | } | |
7852 | ||
4c3bbe0f MHM |
7853 | case 'x': |
7854 | { /* x */ | |
7855 | return -KEY_x; | |
7856 | } | |
7857 | ||
4c3bbe0f MHM |
7858 | case 'y': |
7859 | { /* y */ | |
7860 | return KEY_y; | |
7861 | } | |
7862 | ||
4c3bbe0f MHM |
7863 | default: |
7864 | goto unknown; | |
e2e1dd5a | 7865 | } |
4c3bbe0f MHM |
7866 | |
7867 | case 2: /* 18 tokens of length 2 */ | |
7868 | switch (name[0]) | |
e2e1dd5a | 7869 | { |
4c3bbe0f MHM |
7870 | case 'd': |
7871 | if (name[1] == 'o') | |
7872 | { /* do */ | |
7873 | return KEY_do; | |
7874 | } | |
7875 | ||
7876 | goto unknown; | |
7877 | ||
7878 | case 'e': | |
7879 | if (name[1] == 'q') | |
7880 | { /* eq */ | |
7881 | return -KEY_eq; | |
7882 | } | |
7883 | ||
7884 | goto unknown; | |
7885 | ||
7886 | case 'g': | |
7887 | switch (name[1]) | |
7888 | { | |
7889 | case 'e': | |
7890 | { /* ge */ | |
7891 | return -KEY_ge; | |
7892 | } | |
7893 | ||
4c3bbe0f MHM |
7894 | case 't': |
7895 | { /* gt */ | |
7896 | return -KEY_gt; | |
7897 | } | |
7898 | ||
4c3bbe0f MHM |
7899 | default: |
7900 | goto unknown; | |
7901 | } | |
7902 | ||
7903 | case 'i': | |
7904 | if (name[1] == 'f') | |
7905 | { /* if */ | |
7906 | return KEY_if; | |
7907 | } | |
7908 | ||
7909 | goto unknown; | |
7910 | ||
7911 | case 'l': | |
7912 | switch (name[1]) | |
7913 | { | |
7914 | case 'c': | |
7915 | { /* lc */ | |
7916 | return -KEY_lc; | |
7917 | } | |
7918 | ||
4c3bbe0f MHM |
7919 | case 'e': |
7920 | { /* le */ | |
7921 | return -KEY_le; | |
7922 | } | |
7923 | ||
4c3bbe0f MHM |
7924 | case 't': |
7925 | { /* lt */ | |
7926 | return -KEY_lt; | |
7927 | } | |
7928 | ||
4c3bbe0f MHM |
7929 | default: |
7930 | goto unknown; | |
7931 | } | |
7932 | ||
7933 | case 'm': | |
7934 | if (name[1] == 'y') | |
7935 | { /* my */ | |
7936 | return KEY_my; | |
7937 | } | |
7938 | ||
7939 | goto unknown; | |
7940 | ||
7941 | case 'n': | |
7942 | switch (name[1]) | |
7943 | { | |
7944 | case 'e': | |
7945 | { /* ne */ | |
7946 | return -KEY_ne; | |
7947 | } | |
7948 | ||
4c3bbe0f MHM |
7949 | case 'o': |
7950 | { /* no */ | |
7951 | return KEY_no; | |
7952 | } | |
7953 | ||
4c3bbe0f MHM |
7954 | default: |
7955 | goto unknown; | |
7956 | } | |
7957 | ||
7958 | case 'o': | |
7959 | if (name[1] == 'r') | |
7960 | { /* or */ | |
7961 | return -KEY_or; | |
7962 | } | |
7963 | ||
7964 | goto unknown; | |
7965 | ||
7966 | case 'q': | |
7967 | switch (name[1]) | |
7968 | { | |
7969 | case 'q': | |
7970 | { /* qq */ | |
7971 | return KEY_qq; | |
7972 | } | |
7973 | ||
4c3bbe0f MHM |
7974 | case 'r': |
7975 | { /* qr */ | |
7976 | return KEY_qr; | |
7977 | } | |
7978 | ||
4c3bbe0f MHM |
7979 | case 'w': |
7980 | { /* qw */ | |
7981 | return KEY_qw; | |
7982 | } | |
7983 | ||
4c3bbe0f MHM |
7984 | case 'x': |
7985 | { /* qx */ | |
7986 | return KEY_qx; | |
7987 | } | |
7988 | ||
4c3bbe0f MHM |
7989 | default: |
7990 | goto unknown; | |
7991 | } | |
7992 | ||
7993 | case 't': | |
7994 | if (name[1] == 'r') | |
7995 | { /* tr */ | |
7996 | return KEY_tr; | |
7997 | } | |
7998 | ||
7999 | goto unknown; | |
8000 | ||
8001 | case 'u': | |
8002 | if (name[1] == 'c') | |
8003 | { /* uc */ | |
8004 | return -KEY_uc; | |
8005 | } | |
8006 | ||
8007 | goto unknown; | |
8008 | ||
8009 | default: | |
8010 | goto unknown; | |
e2e1dd5a | 8011 | } |
4c3bbe0f | 8012 | |
0d863452 | 8013 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 8014 | switch (name[0]) |
e2e1dd5a | 8015 | { |
4c3bbe0f MHM |
8016 | case 'E': |
8017 | if (name[1] == 'N' && | |
8018 | name[2] == 'D') | |
8019 | { /* END */ | |
8020 | return KEY_END; | |
8021 | } | |
8022 | ||
8023 | goto unknown; | |
8024 | ||
8025 | case 'a': | |
8026 | switch (name[1]) | |
8027 | { | |
8028 | case 'b': | |
8029 | if (name[2] == 's') | |
8030 | { /* abs */ | |
8031 | return -KEY_abs; | |
8032 | } | |
8033 | ||
8034 | goto unknown; | |
8035 | ||
8036 | case 'n': | |
8037 | if (name[2] == 'd') | |
8038 | { /* and */ | |
8039 | return -KEY_and; | |
8040 | } | |
8041 | ||
8042 | goto unknown; | |
8043 | ||
8044 | default: | |
8045 | goto unknown; | |
8046 | } | |
8047 | ||
8048 | case 'c': | |
8049 | switch (name[1]) | |
8050 | { | |
8051 | case 'h': | |
8052 | if (name[2] == 'r') | |
8053 | { /* chr */ | |
8054 | return -KEY_chr; | |
8055 | } | |
8056 | ||
8057 | goto unknown; | |
8058 | ||
8059 | case 'm': | |
8060 | if (name[2] == 'p') | |
8061 | { /* cmp */ | |
8062 | return -KEY_cmp; | |
8063 | } | |
8064 | ||
8065 | goto unknown; | |
8066 | ||
8067 | case 'o': | |
8068 | if (name[2] == 's') | |
8069 | { /* cos */ | |
8070 | return -KEY_cos; | |
8071 | } | |
8072 | ||
8073 | goto unknown; | |
8074 | ||
8075 | default: | |
8076 | goto unknown; | |
8077 | } | |
8078 | ||
8079 | case 'd': | |
8080 | if (name[1] == 'i' && | |
8081 | name[2] == 'e') | |
8082 | { /* die */ | |
8083 | return -KEY_die; | |
8084 | } | |
8085 | ||
8086 | goto unknown; | |
8087 | ||
8088 | case 'e': | |
8089 | switch (name[1]) | |
8090 | { | |
8091 | case 'o': | |
8092 | if (name[2] == 'f') | |
8093 | { /* eof */ | |
8094 | return -KEY_eof; | |
8095 | } | |
8096 | ||
8097 | goto unknown; | |
8098 | ||
4c3bbe0f MHM |
8099 | case 'x': |
8100 | if (name[2] == 'p') | |
8101 | { /* exp */ | |
8102 | return -KEY_exp; | |
8103 | } | |
8104 | ||
8105 | goto unknown; | |
8106 | ||
8107 | default: | |
8108 | goto unknown; | |
8109 | } | |
8110 | ||
8111 | case 'f': | |
8112 | if (name[1] == 'o' && | |
8113 | name[2] == 'r') | |
8114 | { /* for */ | |
8115 | return KEY_for; | |
8116 | } | |
8117 | ||
8118 | goto unknown; | |
8119 | ||
8120 | case 'h': | |
8121 | if (name[1] == 'e' && | |
8122 | name[2] == 'x') | |
8123 | { /* hex */ | |
8124 | return -KEY_hex; | |
8125 | } | |
8126 | ||
8127 | goto unknown; | |
8128 | ||
8129 | case 'i': | |
8130 | if (name[1] == 'n' && | |
8131 | name[2] == 't') | |
8132 | { /* int */ | |
8133 | return -KEY_int; | |
8134 | } | |
8135 | ||
8136 | goto unknown; | |
8137 | ||
8138 | case 'l': | |
8139 | if (name[1] == 'o' && | |
8140 | name[2] == 'g') | |
8141 | { /* log */ | |
8142 | return -KEY_log; | |
8143 | } | |
8144 | ||
8145 | goto unknown; | |
8146 | ||
8147 | case 'm': | |
8148 | if (name[1] == 'a' && | |
8149 | name[2] == 'p') | |
8150 | { /* map */ | |
8151 | return KEY_map; | |
8152 | } | |
8153 | ||
8154 | goto unknown; | |
8155 | ||
8156 | case 'n': | |
8157 | if (name[1] == 'o' && | |
8158 | name[2] == 't') | |
8159 | { /* not */ | |
8160 | return -KEY_not; | |
8161 | } | |
8162 | ||
8163 | goto unknown; | |
8164 | ||
8165 | case 'o': | |
8166 | switch (name[1]) | |
8167 | { | |
8168 | case 'c': | |
8169 | if (name[2] == 't') | |
8170 | { /* oct */ | |
8171 | return -KEY_oct; | |
8172 | } | |
8173 | ||
8174 | goto unknown; | |
8175 | ||
8176 | case 'r': | |
8177 | if (name[2] == 'd') | |
8178 | { /* ord */ | |
8179 | return -KEY_ord; | |
8180 | } | |
8181 | ||
8182 | goto unknown; | |
8183 | ||
8184 | case 'u': | |
8185 | if (name[2] == 'r') | |
8186 | { /* our */ | |
8187 | return KEY_our; | |
8188 | } | |
8189 | ||
8190 | goto unknown; | |
8191 | ||
8192 | default: | |
8193 | goto unknown; | |
8194 | } | |
8195 | ||
8196 | case 'p': | |
8197 | if (name[1] == 'o') | |
8198 | { | |
8199 | switch (name[2]) | |
8200 | { | |
8201 | case 'p': | |
8202 | { /* pop */ | |
8203 | return -KEY_pop; | |
8204 | } | |
8205 | ||
4c3bbe0f MHM |
8206 | case 's': |
8207 | { /* pos */ | |
8208 | return KEY_pos; | |
8209 | } | |
8210 | ||
4c3bbe0f MHM |
8211 | default: |
8212 | goto unknown; | |
8213 | } | |
8214 | } | |
8215 | ||
8216 | goto unknown; | |
8217 | ||
8218 | case 'r': | |
8219 | if (name[1] == 'e' && | |
8220 | name[2] == 'f') | |
8221 | { /* ref */ | |
8222 | return -KEY_ref; | |
8223 | } | |
8224 | ||
8225 | goto unknown; | |
8226 | ||
8227 | case 's': | |
8228 | switch (name[1]) | |
8229 | { | |
0d863452 RH |
8230 | case 'a': |
8231 | if (name[2] == 'y') | |
8232 | { /* say */ | |
e3e804c9 | 8233 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
8234 | } |
8235 | ||
8236 | goto unknown; | |
8237 | ||
4c3bbe0f MHM |
8238 | case 'i': |
8239 | if (name[2] == 'n') | |
8240 | { /* sin */ | |
8241 | return -KEY_sin; | |
8242 | } | |
8243 | ||
8244 | goto unknown; | |
8245 | ||
8246 | case 'u': | |
8247 | if (name[2] == 'b') | |
8248 | { /* sub */ | |
8249 | return KEY_sub; | |
8250 | } | |
8251 | ||
8252 | goto unknown; | |
8253 | ||
8254 | default: | |
8255 | goto unknown; | |
8256 | } | |
8257 | ||
8258 | case 't': | |
8259 | if (name[1] == 'i' && | |
8260 | name[2] == 'e') | |
8261 | { /* tie */ | |
8262 | return KEY_tie; | |
8263 | } | |
8264 | ||
8265 | goto unknown; | |
8266 | ||
8267 | case 'u': | |
8268 | if (name[1] == 's' && | |
8269 | name[2] == 'e') | |
8270 | { /* use */ | |
8271 | return KEY_use; | |
8272 | } | |
8273 | ||
8274 | goto unknown; | |
8275 | ||
8276 | case 'v': | |
8277 | if (name[1] == 'e' && | |
8278 | name[2] == 'c') | |
8279 | { /* vec */ | |
8280 | return -KEY_vec; | |
8281 | } | |
8282 | ||
8283 | goto unknown; | |
8284 | ||
8285 | case 'x': | |
8286 | if (name[1] == 'o' && | |
8287 | name[2] == 'r') | |
8288 | { /* xor */ | |
8289 | return -KEY_xor; | |
8290 | } | |
8291 | ||
8292 | goto unknown; | |
8293 | ||
8294 | default: | |
8295 | goto unknown; | |
e2e1dd5a | 8296 | } |
4c3bbe0f | 8297 | |
0d863452 | 8298 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 8299 | switch (name[0]) |
e2e1dd5a | 8300 | { |
4c3bbe0f MHM |
8301 | case 'C': |
8302 | if (name[1] == 'O' && | |
8303 | name[2] == 'R' && | |
8304 | name[3] == 'E') | |
8305 | { /* CORE */ | |
8306 | return -KEY_CORE; | |
8307 | } | |
8308 | ||
8309 | goto unknown; | |
8310 | ||
8311 | case 'I': | |
8312 | if (name[1] == 'N' && | |
8313 | name[2] == 'I' && | |
8314 | name[3] == 'T') | |
8315 | { /* INIT */ | |
8316 | return KEY_INIT; | |
8317 | } | |
8318 | ||
8319 | goto unknown; | |
8320 | ||
8321 | case 'b': | |
8322 | if (name[1] == 'i' && | |
8323 | name[2] == 'n' && | |
8324 | name[3] == 'd') | |
8325 | { /* bind */ | |
8326 | return -KEY_bind; | |
8327 | } | |
8328 | ||
8329 | goto unknown; | |
8330 | ||
8331 | case 'c': | |
8332 | if (name[1] == 'h' && | |
8333 | name[2] == 'o' && | |
8334 | name[3] == 'p') | |
8335 | { /* chop */ | |
8336 | return -KEY_chop; | |
8337 | } | |
8338 | ||
8339 | goto unknown; | |
8340 | ||
8341 | case 'd': | |
8342 | if (name[1] == 'u' && | |
8343 | name[2] == 'm' && | |
8344 | name[3] == 'p') | |
8345 | { /* dump */ | |
8346 | return -KEY_dump; | |
8347 | } | |
8348 | ||
8349 | goto unknown; | |
8350 | ||
8351 | case 'e': | |
8352 | switch (name[1]) | |
8353 | { | |
8354 | case 'a': | |
8355 | if (name[2] == 'c' && | |
8356 | name[3] == 'h') | |
8357 | { /* each */ | |
8358 | return -KEY_each; | |
8359 | } | |
8360 | ||
8361 | goto unknown; | |
8362 | ||
8363 | case 'l': | |
8364 | if (name[2] == 's' && | |
8365 | name[3] == 'e') | |
8366 | { /* else */ | |
8367 | return KEY_else; | |
8368 | } | |
8369 | ||
8370 | goto unknown; | |
8371 | ||
8372 | case 'v': | |
8373 | if (name[2] == 'a' && | |
8374 | name[3] == 'l') | |
8375 | { /* eval */ | |
8376 | return KEY_eval; | |
8377 | } | |
8378 | ||
8379 | goto unknown; | |
8380 | ||
8381 | case 'x': | |
8382 | switch (name[2]) | |
8383 | { | |
8384 | case 'e': | |
8385 | if (name[3] == 'c') | |
8386 | { /* exec */ | |
8387 | return -KEY_exec; | |
8388 | } | |
8389 | ||
8390 | goto unknown; | |
8391 | ||
8392 | case 'i': | |
8393 | if (name[3] == 't') | |
8394 | { /* exit */ | |
8395 | return -KEY_exit; | |
8396 | } | |
8397 | ||
8398 | goto unknown; | |
8399 | ||
8400 | default: | |
8401 | goto unknown; | |
8402 | } | |
8403 | ||
8404 | default: | |
8405 | goto unknown; | |
8406 | } | |
8407 | ||
8408 | case 'f': | |
8409 | if (name[1] == 'o' && | |
8410 | name[2] == 'r' && | |
8411 | name[3] == 'k') | |
8412 | { /* fork */ | |
8413 | return -KEY_fork; | |
8414 | } | |
8415 | ||
8416 | goto unknown; | |
8417 | ||
8418 | case 'g': | |
8419 | switch (name[1]) | |
8420 | { | |
8421 | case 'e': | |
8422 | if (name[2] == 't' && | |
8423 | name[3] == 'c') | |
8424 | { /* getc */ | |
8425 | return -KEY_getc; | |
8426 | } | |
8427 | ||
8428 | goto unknown; | |
8429 | ||
8430 | case 'l': | |
8431 | if (name[2] == 'o' && | |
8432 | name[3] == 'b') | |
8433 | { /* glob */ | |
8434 | return KEY_glob; | |
8435 | } | |
8436 | ||
8437 | goto unknown; | |
8438 | ||
8439 | case 'o': | |
8440 | if (name[2] == 't' && | |
8441 | name[3] == 'o') | |
8442 | { /* goto */ | |
8443 | return KEY_goto; | |
8444 | } | |
8445 | ||
8446 | goto unknown; | |
8447 | ||
8448 | case 'r': | |
8449 | if (name[2] == 'e' && | |
8450 | name[3] == 'p') | |
8451 | { /* grep */ | |
8452 | return KEY_grep; | |
8453 | } | |
8454 | ||
8455 | goto unknown; | |
8456 | ||
8457 | default: | |
8458 | goto unknown; | |
8459 | } | |
8460 | ||
8461 | case 'j': | |
8462 | if (name[1] == 'o' && | |
8463 | name[2] == 'i' && | |
8464 | name[3] == 'n') | |
8465 | { /* join */ | |
8466 | return -KEY_join; | |
8467 | } | |
8468 | ||
8469 | goto unknown; | |
8470 | ||
8471 | case 'k': | |
8472 | switch (name[1]) | |
8473 | { | |
8474 | case 'e': | |
8475 | if (name[2] == 'y' && | |
8476 | name[3] == 's') | |
8477 | { /* keys */ | |
8478 | return -KEY_keys; | |
8479 | } | |
8480 | ||
8481 | goto unknown; | |
8482 | ||
8483 | case 'i': | |
8484 | if (name[2] == 'l' && | |
8485 | name[3] == 'l') | |
8486 | { /* kill */ | |
8487 | return -KEY_kill; | |
8488 | } | |
8489 | ||
8490 | goto unknown; | |
8491 | ||
8492 | default: | |
8493 | goto unknown; | |
8494 | } | |
8495 | ||
8496 | case 'l': | |
8497 | switch (name[1]) | |
8498 | { | |
8499 | case 'a': | |
8500 | if (name[2] == 's' && | |
8501 | name[3] == 't') | |
8502 | { /* last */ | |
8503 | return KEY_last; | |
8504 | } | |
8505 | ||
8506 | goto unknown; | |
8507 | ||
8508 | case 'i': | |
8509 | if (name[2] == 'n' && | |
8510 | name[3] == 'k') | |
8511 | { /* link */ | |
8512 | return -KEY_link; | |
8513 | } | |
8514 | ||
8515 | goto unknown; | |
8516 | ||
8517 | case 'o': | |
8518 | if (name[2] == 'c' && | |
8519 | name[3] == 'k') | |
8520 | { /* lock */ | |
8521 | return -KEY_lock; | |
8522 | } | |
8523 | ||
8524 | goto unknown; | |
8525 | ||
8526 | default: | |
8527 | goto unknown; | |
8528 | } | |
8529 | ||
8530 | case 'n': | |
8531 | if (name[1] == 'e' && | |
8532 | name[2] == 'x' && | |
8533 | name[3] == 't') | |
8534 | { /* next */ | |
8535 | return KEY_next; | |
8536 | } | |
8537 | ||
8538 | goto unknown; | |
8539 | ||
8540 | case 'o': | |
8541 | if (name[1] == 'p' && | |
8542 | name[2] == 'e' && | |
8543 | name[3] == 'n') | |
8544 | { /* open */ | |
8545 | return -KEY_open; | |
8546 | } | |
8547 | ||
8548 | goto unknown; | |
8549 | ||
8550 | case 'p': | |
8551 | switch (name[1]) | |
8552 | { | |
8553 | case 'a': | |
8554 | if (name[2] == 'c' && | |
8555 | name[3] == 'k') | |
8556 | { /* pack */ | |
8557 | return -KEY_pack; | |
8558 | } | |
8559 | ||
8560 | goto unknown; | |
8561 | ||
8562 | case 'i': | |
8563 | if (name[2] == 'p' && | |
8564 | name[3] == 'e') | |
8565 | { /* pipe */ | |
8566 | return -KEY_pipe; | |
8567 | } | |
8568 | ||
8569 | goto unknown; | |
8570 | ||
8571 | case 'u': | |
8572 | if (name[2] == 's' && | |
8573 | name[3] == 'h') | |
8574 | { /* push */ | |
8575 | return -KEY_push; | |
8576 | } | |
8577 | ||
8578 | goto unknown; | |
8579 | ||
8580 | default: | |
8581 | goto unknown; | |
8582 | } | |
8583 | ||
8584 | case 'r': | |
8585 | switch (name[1]) | |
8586 | { | |
8587 | case 'a': | |
8588 | if (name[2] == 'n' && | |
8589 | name[3] == 'd') | |
8590 | { /* rand */ | |
8591 | return -KEY_rand; | |
8592 | } | |
8593 | ||
8594 | goto unknown; | |
8595 | ||
8596 | case 'e': | |
8597 | switch (name[2]) | |
8598 | { | |
8599 | case 'a': | |
8600 | if (name[3] == 'd') | |
8601 | { /* read */ | |
8602 | return -KEY_read; | |
8603 | } | |
8604 | ||
8605 | goto unknown; | |
8606 | ||
8607 | case 'c': | |
8608 | if (name[3] == 'v') | |
8609 | { /* recv */ | |
8610 | return -KEY_recv; | |
8611 | } | |
8612 | ||
8613 | goto unknown; | |
8614 | ||
8615 | case 'd': | |
8616 | if (name[3] == 'o') | |
8617 | { /* redo */ | |
8618 | return KEY_redo; | |
8619 | } | |
8620 | ||
8621 | goto unknown; | |
8622 | ||
8623 | default: | |
8624 | goto unknown; | |
8625 | } | |
8626 | ||
8627 | default: | |
8628 | goto unknown; | |
8629 | } | |
8630 | ||
8631 | case 's': | |
8632 | switch (name[1]) | |
8633 | { | |
8634 | case 'e': | |
8635 | switch (name[2]) | |
8636 | { | |
8637 | case 'e': | |
8638 | if (name[3] == 'k') | |
8639 | { /* seek */ | |
8640 | return -KEY_seek; | |
8641 | } | |
8642 | ||
8643 | goto unknown; | |
8644 | ||
8645 | case 'n': | |
8646 | if (name[3] == 'd') | |
8647 | { /* send */ | |
8648 | return -KEY_send; | |
8649 | } | |
8650 | ||
8651 | goto unknown; | |
8652 | ||
8653 | default: | |
8654 | goto unknown; | |
8655 | } | |
8656 | ||
8657 | case 'o': | |
8658 | if (name[2] == 'r' && | |
8659 | name[3] == 't') | |
8660 | { /* sort */ | |
8661 | return KEY_sort; | |
8662 | } | |
8663 | ||
8664 | goto unknown; | |
8665 | ||
8666 | case 'q': | |
8667 | if (name[2] == 'r' && | |
8668 | name[3] == 't') | |
8669 | { /* sqrt */ | |
8670 | return -KEY_sqrt; | |
8671 | } | |
8672 | ||
8673 | goto unknown; | |
8674 | ||
8675 | case 't': | |
8676 | if (name[2] == 'a' && | |
8677 | name[3] == 't') | |
8678 | { /* stat */ | |
8679 | return -KEY_stat; | |
8680 | } | |
8681 | ||
8682 | goto unknown; | |
8683 | ||
8684 | default: | |
8685 | goto unknown; | |
8686 | } | |
8687 | ||
8688 | case 't': | |
8689 | switch (name[1]) | |
8690 | { | |
8691 | case 'e': | |
8692 | if (name[2] == 'l' && | |
8693 | name[3] == 'l') | |
8694 | { /* tell */ | |
8695 | return -KEY_tell; | |
8696 | } | |
8697 | ||
8698 | goto unknown; | |
8699 | ||
8700 | case 'i': | |
8701 | switch (name[2]) | |
8702 | { | |
8703 | case 'e': | |
8704 | if (name[3] == 'd') | |
8705 | { /* tied */ | |
8706 | return KEY_tied; | |
8707 | } | |
8708 | ||
8709 | goto unknown; | |
8710 | ||
8711 | case 'm': | |
8712 | if (name[3] == 'e') | |
8713 | { /* time */ | |
8714 | return -KEY_time; | |
8715 | } | |
8716 | ||
8717 | goto unknown; | |
8718 | ||
8719 | default: | |
8720 | goto unknown; | |
8721 | } | |
8722 | ||
8723 | default: | |
8724 | goto unknown; | |
8725 | } | |
8726 | ||
8727 | case 'w': | |
0d863452 | 8728 | switch (name[1]) |
4c3bbe0f | 8729 | { |
0d863452 | 8730 | case 'a': |
952306ac RGS |
8731 | switch (name[2]) |
8732 | { | |
8733 | case 'i': | |
8734 | if (name[3] == 't') | |
8735 | { /* wait */ | |
8736 | return -KEY_wait; | |
8737 | } | |
4c3bbe0f | 8738 | |
952306ac | 8739 | goto unknown; |
4c3bbe0f | 8740 | |
952306ac RGS |
8741 | case 'r': |
8742 | if (name[3] == 'n') | |
8743 | { /* warn */ | |
8744 | return -KEY_warn; | |
8745 | } | |
4c3bbe0f | 8746 | |
952306ac | 8747 | goto unknown; |
4c3bbe0f | 8748 | |
952306ac RGS |
8749 | default: |
8750 | goto unknown; | |
8751 | } | |
0d863452 RH |
8752 | |
8753 | case 'h': | |
8754 | if (name[2] == 'e' && | |
8755 | name[3] == 'n') | |
8756 | { /* when */ | |
5458a98a | 8757 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 8758 | } |
4c3bbe0f | 8759 | |
952306ac | 8760 | goto unknown; |
4c3bbe0f | 8761 | |
952306ac RGS |
8762 | default: |
8763 | goto unknown; | |
8764 | } | |
4c3bbe0f | 8765 | |
0d863452 RH |
8766 | default: |
8767 | goto unknown; | |
8768 | } | |
8769 | ||
952306ac | 8770 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 8771 | switch (name[0]) |
e2e1dd5a | 8772 | { |
4c3bbe0f MHM |
8773 | case 'B': |
8774 | if (name[1] == 'E' && | |
8775 | name[2] == 'G' && | |
8776 | name[3] == 'I' && | |
8777 | name[4] == 'N') | |
8778 | { /* BEGIN */ | |
8779 | return KEY_BEGIN; | |
8780 | } | |
8781 | ||
8782 | goto unknown; | |
8783 | ||
8784 | case 'C': | |
8785 | if (name[1] == 'H' && | |
8786 | name[2] == 'E' && | |
8787 | name[3] == 'C' && | |
8788 | name[4] == 'K') | |
8789 | { /* CHECK */ | |
8790 | return KEY_CHECK; | |
8791 | } | |
8792 | ||
8793 | goto unknown; | |
8794 | ||
8795 | case 'a': | |
8796 | switch (name[1]) | |
8797 | { | |
8798 | case 'l': | |
8799 | if (name[2] == 'a' && | |
8800 | name[3] == 'r' && | |
8801 | name[4] == 'm') | |
8802 | { /* alarm */ | |
8803 | return -KEY_alarm; | |
8804 | } | |
8805 | ||
8806 | goto unknown; | |
8807 | ||
8808 | case 't': | |
8809 | if (name[2] == 'a' && | |
8810 | name[3] == 'n' && | |
8811 | name[4] == '2') | |
8812 | { /* atan2 */ | |
8813 | return -KEY_atan2; | |
8814 | } | |
8815 | ||
8816 | goto unknown; | |
8817 | ||
8818 | default: | |
8819 | goto unknown; | |
8820 | } | |
8821 | ||
8822 | case 'b': | |
0d863452 RH |
8823 | switch (name[1]) |
8824 | { | |
8825 | case 'l': | |
8826 | if (name[2] == 'e' && | |
952306ac RGS |
8827 | name[3] == 's' && |
8828 | name[4] == 's') | |
8829 | { /* bless */ | |
8830 | return -KEY_bless; | |
8831 | } | |
4c3bbe0f | 8832 | |
952306ac | 8833 | goto unknown; |
4c3bbe0f | 8834 | |
0d863452 RH |
8835 | case 'r': |
8836 | if (name[2] == 'e' && | |
8837 | name[3] == 'a' && | |
8838 | name[4] == 'k') | |
8839 | { /* break */ | |
5458a98a | 8840 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8841 | } |
8842 | ||
8843 | goto unknown; | |
8844 | ||
8845 | default: | |
8846 | goto unknown; | |
8847 | } | |
8848 | ||
4c3bbe0f MHM |
8849 | case 'c': |
8850 | switch (name[1]) | |
8851 | { | |
8852 | case 'h': | |
8853 | switch (name[2]) | |
8854 | { | |
8855 | case 'd': | |
8856 | if (name[3] == 'i' && | |
8857 | name[4] == 'r') | |
8858 | { /* chdir */ | |
8859 | return -KEY_chdir; | |
8860 | } | |
8861 | ||
8862 | goto unknown; | |
8863 | ||
8864 | case 'm': | |
8865 | if (name[3] == 'o' && | |
8866 | name[4] == 'd') | |
8867 | { /* chmod */ | |
8868 | return -KEY_chmod; | |
8869 | } | |
8870 | ||
8871 | goto unknown; | |
8872 | ||
8873 | case 'o': | |
8874 | switch (name[3]) | |
8875 | { | |
8876 | case 'm': | |
8877 | if (name[4] == 'p') | |
8878 | { /* chomp */ | |
8879 | return -KEY_chomp; | |
8880 | } | |
8881 | ||
8882 | goto unknown; | |
8883 | ||
8884 | case 'w': | |
8885 | if (name[4] == 'n') | |
8886 | { /* chown */ | |
8887 | return -KEY_chown; | |
8888 | } | |
8889 | ||
8890 | goto unknown; | |
8891 | ||
8892 | default: | |
8893 | goto unknown; | |
8894 | } | |
8895 | ||
8896 | default: | |
8897 | goto unknown; | |
8898 | } | |
8899 | ||
8900 | case 'l': | |
8901 | if (name[2] == 'o' && | |
8902 | name[3] == 's' && | |
8903 | name[4] == 'e') | |
8904 | { /* close */ | |
8905 | return -KEY_close; | |
8906 | } | |
8907 | ||
8908 | goto unknown; | |
8909 | ||
8910 | case 'r': | |
8911 | if (name[2] == 'y' && | |
8912 | name[3] == 'p' && | |
8913 | name[4] == 't') | |
8914 | { /* crypt */ | |
8915 | return -KEY_crypt; | |
8916 | } | |
8917 | ||
8918 | goto unknown; | |
8919 | ||
8920 | default: | |
8921 | goto unknown; | |
8922 | } | |
8923 | ||
8924 | case 'e': | |
8925 | if (name[1] == 'l' && | |
8926 | name[2] == 's' && | |
8927 | name[3] == 'i' && | |
8928 | name[4] == 'f') | |
8929 | { /* elsif */ | |
8930 | return KEY_elsif; | |
8931 | } | |
8932 | ||
8933 | goto unknown; | |
8934 | ||
8935 | case 'f': | |
8936 | switch (name[1]) | |
8937 | { | |
8938 | case 'c': | |
8939 | if (name[2] == 'n' && | |
8940 | name[3] == 't' && | |
8941 | name[4] == 'l') | |
8942 | { /* fcntl */ | |
8943 | return -KEY_fcntl; | |
8944 | } | |
8945 | ||
8946 | goto unknown; | |
8947 | ||
8948 | case 'l': | |
8949 | if (name[2] == 'o' && | |
8950 | name[3] == 'c' && | |
8951 | name[4] == 'k') | |
8952 | { /* flock */ | |
8953 | return -KEY_flock; | |
8954 | } | |
8955 | ||
8956 | goto unknown; | |
8957 | ||
8958 | default: | |
8959 | goto unknown; | |
8960 | } | |
8961 | ||
0d863452 RH |
8962 | case 'g': |
8963 | if (name[1] == 'i' && | |
8964 | name[2] == 'v' && | |
8965 | name[3] == 'e' && | |
8966 | name[4] == 'n') | |
8967 | { /* given */ | |
5458a98a | 8968 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8969 | } |
8970 | ||
8971 | goto unknown; | |
8972 | ||
4c3bbe0f MHM |
8973 | case 'i': |
8974 | switch (name[1]) | |
8975 | { | |
8976 | case 'n': | |
8977 | if (name[2] == 'd' && | |
8978 | name[3] == 'e' && | |
8979 | name[4] == 'x') | |
8980 | { /* index */ | |
8981 | return -KEY_index; | |
8982 | } | |
8983 | ||
8984 | goto unknown; | |
8985 | ||
8986 | case 'o': | |
8987 | if (name[2] == 'c' && | |
8988 | name[3] == 't' && | |
8989 | name[4] == 'l') | |
8990 | { /* ioctl */ | |
8991 | return -KEY_ioctl; | |
8992 | } | |
8993 | ||
8994 | goto unknown; | |
8995 | ||
8996 | default: | |
8997 | goto unknown; | |
8998 | } | |
8999 | ||
9000 | case 'l': | |
9001 | switch (name[1]) | |
9002 | { | |
9003 | case 'o': | |
9004 | if (name[2] == 'c' && | |
9005 | name[3] == 'a' && | |
9006 | name[4] == 'l') | |
9007 | { /* local */ | |
9008 | return KEY_local; | |
9009 | } | |
9010 | ||
9011 | goto unknown; | |
9012 | ||
9013 | case 's': | |
9014 | if (name[2] == 't' && | |
9015 | name[3] == 'a' && | |
9016 | name[4] == 't') | |
9017 | { /* lstat */ | |
9018 | return -KEY_lstat; | |
9019 | } | |
9020 | ||
9021 | goto unknown; | |
9022 | ||
9023 | default: | |
9024 | goto unknown; | |
9025 | } | |
9026 | ||
9027 | case 'm': | |
9028 | if (name[1] == 'k' && | |
9029 | name[2] == 'd' && | |
9030 | name[3] == 'i' && | |
9031 | name[4] == 'r') | |
9032 | { /* mkdir */ | |
9033 | return -KEY_mkdir; | |
9034 | } | |
9035 | ||
9036 | goto unknown; | |
9037 | ||
9038 | case 'p': | |
9039 | if (name[1] == 'r' && | |
9040 | name[2] == 'i' && | |
9041 | name[3] == 'n' && | |
9042 | name[4] == 't') | |
9043 | { /* print */ | |
9044 | return KEY_print; | |
9045 | } | |
9046 | ||
9047 | goto unknown; | |
9048 | ||
9049 | case 'r': | |
9050 | switch (name[1]) | |
9051 | { | |
9052 | case 'e': | |
9053 | if (name[2] == 's' && | |
9054 | name[3] == 'e' && | |
9055 | name[4] == 't') | |
9056 | { /* reset */ | |
9057 | return -KEY_reset; | |
9058 | } | |
9059 | ||
9060 | goto unknown; | |
9061 | ||
9062 | case 'm': | |
9063 | if (name[2] == 'd' && | |
9064 | name[3] == 'i' && | |
9065 | name[4] == 'r') | |
9066 | { /* rmdir */ | |
9067 | return -KEY_rmdir; | |
9068 | } | |
9069 | ||
9070 | goto unknown; | |
9071 | ||
9072 | default: | |
9073 | goto unknown; | |
9074 | } | |
9075 | ||
9076 | case 's': | |
9077 | switch (name[1]) | |
9078 | { | |
9079 | case 'e': | |
9080 | if (name[2] == 'm' && | |
9081 | name[3] == 'o' && | |
9082 | name[4] == 'p') | |
9083 | { /* semop */ | |
9084 | return -KEY_semop; | |
9085 | } | |
9086 | ||
9087 | goto unknown; | |
9088 | ||
9089 | case 'h': | |
9090 | if (name[2] == 'i' && | |
9091 | name[3] == 'f' && | |
9092 | name[4] == 't') | |
9093 | { /* shift */ | |
9094 | return -KEY_shift; | |
9095 | } | |
9096 | ||
9097 | goto unknown; | |
9098 | ||
9099 | case 'l': | |
9100 | if (name[2] == 'e' && | |
9101 | name[3] == 'e' && | |
9102 | name[4] == 'p') | |
9103 | { /* sleep */ | |
9104 | return -KEY_sleep; | |
9105 | } | |
9106 | ||
9107 | goto unknown; | |
9108 | ||
9109 | case 'p': | |
9110 | if (name[2] == 'l' && | |
9111 | name[3] == 'i' && | |
9112 | name[4] == 't') | |
9113 | { /* split */ | |
9114 | return KEY_split; | |
9115 | } | |
9116 | ||
9117 | goto unknown; | |
9118 | ||
9119 | case 'r': | |
9120 | if (name[2] == 'a' && | |
9121 | name[3] == 'n' && | |
9122 | name[4] == 'd') | |
9123 | { /* srand */ | |
9124 | return -KEY_srand; | |
9125 | } | |
9126 | ||
9127 | goto unknown; | |
9128 | ||
9129 | case 't': | |
952306ac RGS |
9130 | switch (name[2]) |
9131 | { | |
9132 | case 'a': | |
9133 | if (name[3] == 't' && | |
9134 | name[4] == 'e') | |
9135 | { /* state */ | |
5458a98a | 9136 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 9137 | } |
4c3bbe0f | 9138 | |
952306ac RGS |
9139 | goto unknown; |
9140 | ||
9141 | case 'u': | |
9142 | if (name[3] == 'd' && | |
9143 | name[4] == 'y') | |
9144 | { /* study */ | |
9145 | return KEY_study; | |
9146 | } | |
9147 | ||
9148 | goto unknown; | |
9149 | ||
9150 | default: | |
9151 | goto unknown; | |
9152 | } | |
4c3bbe0f MHM |
9153 | |
9154 | default: | |
9155 | goto unknown; | |
9156 | } | |
9157 | ||
9158 | case 't': | |
9159 | if (name[1] == 'i' && | |
9160 | name[2] == 'm' && | |
9161 | name[3] == 'e' && | |
9162 | name[4] == 's') | |
9163 | { /* times */ | |
9164 | return -KEY_times; | |
9165 | } | |
9166 | ||
9167 | goto unknown; | |
9168 | ||
9169 | case 'u': | |
9170 | switch (name[1]) | |
9171 | { | |
9172 | case 'm': | |
9173 | if (name[2] == 'a' && | |
9174 | name[3] == 's' && | |
9175 | name[4] == 'k') | |
9176 | { /* umask */ | |
9177 | return -KEY_umask; | |
9178 | } | |
9179 | ||
9180 | goto unknown; | |
9181 | ||
9182 | case 'n': | |
9183 | switch (name[2]) | |
9184 | { | |
9185 | case 'd': | |
9186 | if (name[3] == 'e' && | |
9187 | name[4] == 'f') | |
9188 | { /* undef */ | |
9189 | return KEY_undef; | |
9190 | } | |
9191 | ||
9192 | goto unknown; | |
9193 | ||
9194 | case 't': | |
9195 | if (name[3] == 'i') | |
9196 | { | |
9197 | switch (name[4]) | |
9198 | { | |
9199 | case 'e': | |
9200 | { /* untie */ | |
9201 | return KEY_untie; | |
9202 | } | |
9203 | ||
4c3bbe0f MHM |
9204 | case 'l': |
9205 | { /* until */ | |
9206 | return KEY_until; | |
9207 | } | |
9208 | ||
4c3bbe0f MHM |
9209 | default: |
9210 | goto unknown; | |
9211 | } | |
9212 | } | |
9213 | ||
9214 | goto unknown; | |
9215 | ||
9216 | default: | |
9217 | goto unknown; | |
9218 | } | |
9219 | ||
9220 | case 't': | |
9221 | if (name[2] == 'i' && | |
9222 | name[3] == 'm' && | |
9223 | name[4] == 'e') | |
9224 | { /* utime */ | |
9225 | return -KEY_utime; | |
9226 | } | |
9227 | ||
9228 | goto unknown; | |
9229 | ||
9230 | default: | |
9231 | goto unknown; | |
9232 | } | |
9233 | ||
9234 | case 'w': | |
9235 | switch (name[1]) | |
9236 | { | |
9237 | case 'h': | |
9238 | if (name[2] == 'i' && | |
9239 | name[3] == 'l' && | |
9240 | name[4] == 'e') | |
9241 | { /* while */ | |
9242 | return KEY_while; | |
9243 | } | |
9244 | ||
9245 | goto unknown; | |
9246 | ||
9247 | case 'r': | |
9248 | if (name[2] == 'i' && | |
9249 | name[3] == 't' && | |
9250 | name[4] == 'e') | |
9251 | { /* write */ | |
9252 | return -KEY_write; | |
9253 | } | |
9254 | ||
9255 | goto unknown; | |
9256 | ||
9257 | default: | |
9258 | goto unknown; | |
9259 | } | |
9260 | ||
9261 | default: | |
9262 | goto unknown; | |
e2e1dd5a | 9263 | } |
4c3bbe0f MHM |
9264 | |
9265 | case 6: /* 33 tokens of length 6 */ | |
9266 | switch (name[0]) | |
9267 | { | |
9268 | case 'a': | |
9269 | if (name[1] == 'c' && | |
9270 | name[2] == 'c' && | |
9271 | name[3] == 'e' && | |
9272 | name[4] == 'p' && | |
9273 | name[5] == 't') | |
9274 | { /* accept */ | |
9275 | return -KEY_accept; | |
9276 | } | |
9277 | ||
9278 | goto unknown; | |
9279 | ||
9280 | case 'c': | |
9281 | switch (name[1]) | |
9282 | { | |
9283 | case 'a': | |
9284 | if (name[2] == 'l' && | |
9285 | name[3] == 'l' && | |
9286 | name[4] == 'e' && | |
9287 | name[5] == 'r') | |
9288 | { /* caller */ | |
9289 | return -KEY_caller; | |
9290 | } | |
9291 | ||
9292 | goto unknown; | |
9293 | ||
9294 | case 'h': | |
9295 | if (name[2] == 'r' && | |
9296 | name[3] == 'o' && | |
9297 | name[4] == 'o' && | |
9298 | name[5] == 't') | |
9299 | { /* chroot */ | |
9300 | return -KEY_chroot; | |
9301 | } | |
9302 | ||
9303 | goto unknown; | |
9304 | ||
9305 | default: | |
9306 | goto unknown; | |
9307 | } | |
9308 | ||
9309 | case 'd': | |
9310 | if (name[1] == 'e' && | |
9311 | name[2] == 'l' && | |
9312 | name[3] == 'e' && | |
9313 | name[4] == 't' && | |
9314 | name[5] == 'e') | |
9315 | { /* delete */ | |
9316 | return KEY_delete; | |
9317 | } | |
9318 | ||
9319 | goto unknown; | |
9320 | ||
9321 | case 'e': | |
9322 | switch (name[1]) | |
9323 | { | |
9324 | case 'l': | |
9325 | if (name[2] == 's' && | |
9326 | name[3] == 'e' && | |
9327 | name[4] == 'i' && | |
9328 | name[5] == 'f') | |
9329 | { /* elseif */ | |
9b387841 | 9330 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); |
4c3bbe0f MHM |
9331 | } |
9332 | ||
9333 | goto unknown; | |
9334 | ||
9335 | case 'x': | |
9336 | if (name[2] == 'i' && | |
9337 | name[3] == 's' && | |
9338 | name[4] == 't' && | |
9339 | name[5] == 's') | |
9340 | { /* exists */ | |
9341 | return KEY_exists; | |
9342 | } | |
9343 | ||
9344 | goto unknown; | |
9345 | ||
9346 | default: | |
9347 | goto unknown; | |
9348 | } | |
9349 | ||
9350 | case 'f': | |
9351 | switch (name[1]) | |
9352 | { | |
9353 | case 'i': | |
9354 | if (name[2] == 'l' && | |
9355 | name[3] == 'e' && | |
9356 | name[4] == 'n' && | |
9357 | name[5] == 'o') | |
9358 | { /* fileno */ | |
9359 | return -KEY_fileno; | |
9360 | } | |
9361 | ||
9362 | goto unknown; | |
9363 | ||
9364 | case 'o': | |
9365 | if (name[2] == 'r' && | |
9366 | name[3] == 'm' && | |
9367 | name[4] == 'a' && | |
9368 | name[5] == 't') | |
9369 | { /* format */ | |
9370 | return KEY_format; | |
9371 | } | |
9372 | ||
9373 | goto unknown; | |
9374 | ||
9375 | default: | |
9376 | goto unknown; | |
9377 | } | |
9378 | ||
9379 | case 'g': | |
9380 | if (name[1] == 'm' && | |
9381 | name[2] == 't' && | |
9382 | name[3] == 'i' && | |
9383 | name[4] == 'm' && | |
9384 | name[5] == 'e') | |
9385 | { /* gmtime */ | |
9386 | return -KEY_gmtime; | |
9387 | } | |
9388 | ||
9389 | goto unknown; | |
9390 | ||
9391 | case 'l': | |
9392 | switch (name[1]) | |
9393 | { | |
9394 | case 'e': | |
9395 | if (name[2] == 'n' && | |
9396 | name[3] == 'g' && | |
9397 | name[4] == 't' && | |
9398 | name[5] == 'h') | |
9399 | { /* length */ | |
9400 | return -KEY_length; | |
9401 | } | |
9402 | ||
9403 | goto unknown; | |
9404 | ||
9405 | case 'i': | |
9406 | if (name[2] == 's' && | |
9407 | name[3] == 't' && | |
9408 | name[4] == 'e' && | |
9409 | name[5] == 'n') | |
9410 | { /* listen */ | |
9411 | return -KEY_listen; | |
9412 | } | |
9413 | ||
9414 | goto unknown; | |
9415 | ||
9416 | default: | |
9417 | goto unknown; | |
9418 | } | |
9419 | ||
9420 | case 'm': | |
9421 | if (name[1] == 's' && | |
9422 | name[2] == 'g') | |
9423 | { | |
9424 | switch (name[3]) | |
9425 | { | |
9426 | case 'c': | |
9427 | if (name[4] == 't' && | |
9428 | name[5] == 'l') | |
9429 | { /* msgctl */ | |
9430 | return -KEY_msgctl; | |
9431 | } | |
9432 | ||
9433 | goto unknown; | |
9434 | ||
9435 | case 'g': | |
9436 | if (name[4] == 'e' && | |
9437 | name[5] == 't') | |
9438 | { /* msgget */ | |
9439 | return -KEY_msgget; | |
9440 | } | |
9441 | ||
9442 | goto unknown; | |
9443 | ||
9444 | case 'r': | |
9445 | if (name[4] == 'c' && | |
9446 | name[5] == 'v') | |
9447 | { /* msgrcv */ | |
9448 | return -KEY_msgrcv; | |
9449 | } | |
9450 | ||
9451 | goto unknown; | |
9452 | ||
9453 | case 's': | |
9454 | if (name[4] == 'n' && | |
9455 | name[5] == 'd') | |
9456 | { /* msgsnd */ | |
9457 | return -KEY_msgsnd; | |
9458 | } | |
9459 | ||
9460 | goto unknown; | |
9461 | ||
9462 | default: | |
9463 | goto unknown; | |
9464 | } | |
9465 | } | |
9466 | ||
9467 | goto unknown; | |
9468 | ||
9469 | case 'p': | |
9470 | if (name[1] == 'r' && | |
9471 | name[2] == 'i' && | |
9472 | name[3] == 'n' && | |
9473 | name[4] == 't' && | |
9474 | name[5] == 'f') | |
9475 | { /* printf */ | |
9476 | return KEY_printf; | |
9477 | } | |
9478 | ||
9479 | goto unknown; | |
9480 | ||
9481 | case 'r': | |
9482 | switch (name[1]) | |
9483 | { | |
9484 | case 'e': | |
9485 | switch (name[2]) | |
9486 | { | |
9487 | case 'n': | |
9488 | if (name[3] == 'a' && | |
9489 | name[4] == 'm' && | |
9490 | name[5] == 'e') | |
9491 | { /* rename */ | |
9492 | return -KEY_rename; | |
9493 | } | |
9494 | ||
9495 | goto unknown; | |
9496 | ||
9497 | case 't': | |
9498 | if (name[3] == 'u' && | |
9499 | name[4] == 'r' && | |
9500 | name[5] == 'n') | |
9501 | { /* return */ | |
9502 | return KEY_return; | |
9503 | } | |
9504 | ||
9505 | goto unknown; | |
9506 | ||
9507 | default: | |
9508 | goto unknown; | |
9509 | } | |
9510 | ||
9511 | case 'i': | |
9512 | if (name[2] == 'n' && | |
9513 | name[3] == 'd' && | |
9514 | name[4] == 'e' && | |
9515 | name[5] == 'x') | |
9516 | { /* rindex */ | |
9517 | return -KEY_rindex; | |
9518 | } | |
9519 | ||
9520 | goto unknown; | |
9521 | ||
9522 | default: | |
9523 | goto unknown; | |
9524 | } | |
9525 | ||
9526 | case 's': | |
9527 | switch (name[1]) | |
9528 | { | |
9529 | case 'c': | |
9530 | if (name[2] == 'a' && | |
9531 | name[3] == 'l' && | |
9532 | name[4] == 'a' && | |
9533 | name[5] == 'r') | |
9534 | { /* scalar */ | |
9535 | return KEY_scalar; | |
9536 | } | |
9537 | ||
9538 | goto unknown; | |
9539 | ||
9540 | case 'e': | |
9541 | switch (name[2]) | |
9542 | { | |
9543 | case 'l': | |
9544 | if (name[3] == 'e' && | |
9545 | name[4] == 'c' && | |
9546 | name[5] == 't') | |
9547 | { /* select */ | |
9548 | return -KEY_select; | |
9549 | } | |
9550 | ||
9551 | goto unknown; | |
9552 | ||
9553 | case 'm': | |
9554 | switch (name[3]) | |
9555 | { | |
9556 | case 'c': | |
9557 | if (name[4] == 't' && | |
9558 | name[5] == 'l') | |
9559 | { /* semctl */ | |
9560 | return -KEY_semctl; | |
9561 | } | |
9562 | ||
9563 | goto unknown; | |
9564 | ||
9565 | case 'g': | |
9566 | if (name[4] == 'e' && | |
9567 | name[5] == 't') | |
9568 | { /* semget */ | |
9569 | return -KEY_semget; | |
9570 | } | |
9571 | ||
9572 | goto unknown; | |
9573 | ||
9574 | default: | |
9575 | goto unknown; | |
9576 | } | |
9577 | ||
9578 | default: | |
9579 | goto unknown; | |
9580 | } | |
9581 | ||
9582 | case 'h': | |
9583 | if (name[2] == 'm') | |
9584 | { | |
9585 | switch (name[3]) | |
9586 | { | |
9587 | case 'c': | |
9588 | if (name[4] == 't' && | |
9589 | name[5] == 'l') | |
9590 | { /* shmctl */ | |
9591 | return -KEY_shmctl; | |
9592 | } | |
9593 | ||
9594 | goto unknown; | |
9595 | ||
9596 | case 'g': | |
9597 | if (name[4] == 'e' && | |
9598 | name[5] == 't') | |
9599 | { /* shmget */ | |
9600 | return -KEY_shmget; | |
9601 | } | |
9602 | ||
9603 | goto unknown; | |
9604 | ||
9605 | default: | |
9606 | goto unknown; | |
9607 | } | |
9608 | } | |
9609 | ||
9610 | goto unknown; | |
9611 | ||
9612 | case 'o': | |
9613 | if (name[2] == 'c' && | |
9614 | name[3] == 'k' && | |
9615 | name[4] == 'e' && | |
9616 | name[5] == 't') | |
9617 | { /* socket */ | |
9618 | return -KEY_socket; | |
9619 | } | |
9620 | ||
9621 | goto unknown; | |
9622 | ||
9623 | case 'p': | |
9624 | if (name[2] == 'l' && | |
9625 | name[3] == 'i' && | |
9626 | name[4] == 'c' && | |
9627 | name[5] == 'e') | |
9628 | { /* splice */ | |
9629 | return -KEY_splice; | |
9630 | } | |
9631 | ||
9632 | goto unknown; | |
9633 | ||
9634 | case 'u': | |
9635 | if (name[2] == 'b' && | |
9636 | name[3] == 's' && | |
9637 | name[4] == 't' && | |
9638 | name[5] == 'r') | |
9639 | { /* substr */ | |
9640 | return -KEY_substr; | |
9641 | } | |
9642 | ||
9643 | goto unknown; | |
9644 | ||
9645 | case 'y': | |
9646 | if (name[2] == 's' && | |
9647 | name[3] == 't' && | |
9648 | name[4] == 'e' && | |
9649 | name[5] == 'm') | |
9650 | { /* system */ | |
9651 | return -KEY_system; | |
9652 | } | |
9653 | ||
9654 | goto unknown; | |
9655 | ||
9656 | default: | |
9657 | goto unknown; | |
9658 | } | |
9659 | ||
9660 | case 'u': | |
9661 | if (name[1] == 'n') | |
9662 | { | |
9663 | switch (name[2]) | |
9664 | { | |
9665 | case 'l': | |
9666 | switch (name[3]) | |
9667 | { | |
9668 | case 'e': | |
9669 | if (name[4] == 's' && | |
9670 | name[5] == 's') | |
9671 | { /* unless */ | |
9672 | return KEY_unless; | |
9673 | } | |
9674 | ||
9675 | goto unknown; | |
9676 | ||
9677 | case 'i': | |
9678 | if (name[4] == 'n' && | |
9679 | name[5] == 'k') | |
9680 | { /* unlink */ | |
9681 | return -KEY_unlink; | |
9682 | } | |
9683 | ||
9684 | goto unknown; | |
9685 | ||
9686 | default: | |
9687 | goto unknown; | |
9688 | } | |
9689 | ||
9690 | case 'p': | |
9691 | if (name[3] == 'a' && | |
9692 | name[4] == 'c' && | |
9693 | name[5] == 'k') | |
9694 | { /* unpack */ | |
9695 | return -KEY_unpack; | |
9696 | } | |
9697 | ||
9698 | goto unknown; | |
9699 | ||
9700 | default: | |
9701 | goto unknown; | |
9702 | } | |
9703 | } | |
9704 | ||
9705 | goto unknown; | |
9706 | ||
9707 | case 'v': | |
9708 | if (name[1] == 'a' && | |
9709 | name[2] == 'l' && | |
9710 | name[3] == 'u' && | |
9711 | name[4] == 'e' && | |
9712 | name[5] == 's') | |
9713 | { /* values */ | |
9714 | return -KEY_values; | |
9715 | } | |
9716 | ||
9717 | goto unknown; | |
9718 | ||
9719 | default: | |
9720 | goto unknown; | |
e2e1dd5a | 9721 | } |
4c3bbe0f | 9722 | |
0d863452 | 9723 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
9724 | switch (name[0]) |
9725 | { | |
9726 | case 'D': | |
9727 | if (name[1] == 'E' && | |
9728 | name[2] == 'S' && | |
9729 | name[3] == 'T' && | |
9730 | name[4] == 'R' && | |
9731 | name[5] == 'O' && | |
9732 | name[6] == 'Y') | |
9733 | { /* DESTROY */ | |
9734 | return KEY_DESTROY; | |
9735 | } | |
9736 | ||
9737 | goto unknown; | |
9738 | ||
9739 | case '_': | |
9740 | if (name[1] == '_' && | |
9741 | name[2] == 'E' && | |
9742 | name[3] == 'N' && | |
9743 | name[4] == 'D' && | |
9744 | name[5] == '_' && | |
9745 | name[6] == '_') | |
9746 | { /* __END__ */ | |
9747 | return KEY___END__; | |
9748 | } | |
9749 | ||
9750 | goto unknown; | |
9751 | ||
9752 | case 'b': | |
9753 | if (name[1] == 'i' && | |
9754 | name[2] == 'n' && | |
9755 | name[3] == 'm' && | |
9756 | name[4] == 'o' && | |
9757 | name[5] == 'd' && | |
9758 | name[6] == 'e') | |
9759 | { /* binmode */ | |
9760 | return -KEY_binmode; | |
9761 | } | |
9762 | ||
9763 | goto unknown; | |
9764 | ||
9765 | case 'c': | |
9766 | if (name[1] == 'o' && | |
9767 | name[2] == 'n' && | |
9768 | name[3] == 'n' && | |
9769 | name[4] == 'e' && | |
9770 | name[5] == 'c' && | |
9771 | name[6] == 't') | |
9772 | { /* connect */ | |
9773 | return -KEY_connect; | |
9774 | } | |
9775 | ||
9776 | goto unknown; | |
9777 | ||
9778 | case 'd': | |
9779 | switch (name[1]) | |
9780 | { | |
9781 | case 'b': | |
9782 | if (name[2] == 'm' && | |
9783 | name[3] == 'o' && | |
9784 | name[4] == 'p' && | |
9785 | name[5] == 'e' && | |
9786 | name[6] == 'n') | |
9787 | { /* dbmopen */ | |
9788 | return -KEY_dbmopen; | |
9789 | } | |
9790 | ||
9791 | goto unknown; | |
9792 | ||
9793 | case 'e': | |
0d863452 RH |
9794 | if (name[2] == 'f') |
9795 | { | |
9796 | switch (name[3]) | |
9797 | { | |
9798 | case 'a': | |
9799 | if (name[4] == 'u' && | |
9800 | name[5] == 'l' && | |
9801 | name[6] == 't') | |
9802 | { /* default */ | |
5458a98a | 9803 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9804 | } |
9805 | ||
9806 | goto unknown; | |
9807 | ||
9808 | case 'i': | |
9809 | if (name[4] == 'n' && | |
952306ac RGS |
9810 | name[5] == 'e' && |
9811 | name[6] == 'd') | |
9812 | { /* defined */ | |
9813 | return KEY_defined; | |
9814 | } | |
4c3bbe0f | 9815 | |
952306ac | 9816 | goto unknown; |
4c3bbe0f | 9817 | |
952306ac RGS |
9818 | default: |
9819 | goto unknown; | |
9820 | } | |
0d863452 RH |
9821 | } |
9822 | ||
9823 | goto unknown; | |
9824 | ||
9825 | default: | |
9826 | goto unknown; | |
9827 | } | |
4c3bbe0f MHM |
9828 | |
9829 | case 'f': | |
9830 | if (name[1] == 'o' && | |
9831 | name[2] == 'r' && | |
9832 | name[3] == 'e' && | |
9833 | name[4] == 'a' && | |
9834 | name[5] == 'c' && | |
9835 | name[6] == 'h') | |
9836 | { /* foreach */ | |
9837 | return KEY_foreach; | |
9838 | } | |
9839 | ||
9840 | goto unknown; | |
9841 | ||
9842 | case 'g': | |
9843 | if (name[1] == 'e' && | |
9844 | name[2] == 't' && | |
9845 | name[3] == 'p') | |
9846 | { | |
9847 | switch (name[4]) | |
9848 | { | |
9849 | case 'g': | |
9850 | if (name[5] == 'r' && | |
9851 | name[6] == 'p') | |
9852 | { /* getpgrp */ | |
9853 | return -KEY_getpgrp; | |
9854 | } | |
9855 | ||
9856 | goto unknown; | |
9857 | ||
9858 | case 'p': | |
9859 | if (name[5] == 'i' && | |
9860 | name[6] == 'd') | |
9861 | { /* getppid */ | |
9862 | return -KEY_getppid; | |
9863 | } | |
9864 | ||
9865 | goto unknown; | |
9866 | ||
9867 | default: | |
9868 | goto unknown; | |
9869 | } | |
9870 | } | |
9871 | ||
9872 | goto unknown; | |
9873 | ||
9874 | case 'l': | |
9875 | if (name[1] == 'c' && | |
9876 | name[2] == 'f' && | |
9877 | name[3] == 'i' && | |
9878 | name[4] == 'r' && | |
9879 | name[5] == 's' && | |
9880 | name[6] == 't') | |
9881 | { /* lcfirst */ | |
9882 | return -KEY_lcfirst; | |
9883 | } | |
9884 | ||
9885 | goto unknown; | |
9886 | ||
9887 | case 'o': | |
9888 | if (name[1] == 'p' && | |
9889 | name[2] == 'e' && | |
9890 | name[3] == 'n' && | |
9891 | name[4] == 'd' && | |
9892 | name[5] == 'i' && | |
9893 | name[6] == 'r') | |
9894 | { /* opendir */ | |
9895 | return -KEY_opendir; | |
9896 | } | |
9897 | ||
9898 | goto unknown; | |
9899 | ||
9900 | case 'p': | |
9901 | if (name[1] == 'a' && | |
9902 | name[2] == 'c' && | |
9903 | name[3] == 'k' && | |
9904 | name[4] == 'a' && | |
9905 | name[5] == 'g' && | |
9906 | name[6] == 'e') | |
9907 | { /* package */ | |
9908 | return KEY_package; | |
9909 | } | |
9910 | ||
9911 | goto unknown; | |
9912 | ||
9913 | case 'r': | |
9914 | if (name[1] == 'e') | |
9915 | { | |
9916 | switch (name[2]) | |
9917 | { | |
9918 | case 'a': | |
9919 | if (name[3] == 'd' && | |
9920 | name[4] == 'd' && | |
9921 | name[5] == 'i' && | |
9922 | name[6] == 'r') | |
9923 | { /* readdir */ | |
9924 | return -KEY_readdir; | |
9925 | } | |
9926 | ||
9927 | goto unknown; | |
9928 | ||
9929 | case 'q': | |
9930 | if (name[3] == 'u' && | |
9931 | name[4] == 'i' && | |
9932 | name[5] == 'r' && | |
9933 | name[6] == 'e') | |
9934 | { /* require */ | |
9935 | return KEY_require; | |
9936 | } | |
9937 | ||
9938 | goto unknown; | |
9939 | ||
9940 | case 'v': | |
9941 | if (name[3] == 'e' && | |
9942 | name[4] == 'r' && | |
9943 | name[5] == 's' && | |
9944 | name[6] == 'e') | |
9945 | { /* reverse */ | |
9946 | return -KEY_reverse; | |
9947 | } | |
9948 | ||
9949 | goto unknown; | |
9950 | ||
9951 | default: | |
9952 | goto unknown; | |
9953 | } | |
9954 | } | |
9955 | ||
9956 | goto unknown; | |
9957 | ||
9958 | case 's': | |
9959 | switch (name[1]) | |
9960 | { | |
9961 | case 'e': | |
9962 | switch (name[2]) | |
9963 | { | |
9964 | case 'e': | |
9965 | if (name[3] == 'k' && | |
9966 | name[4] == 'd' && | |
9967 | name[5] == 'i' && | |
9968 | name[6] == 'r') | |
9969 | { /* seekdir */ | |
9970 | return -KEY_seekdir; | |
9971 | } | |
9972 | ||
9973 | goto unknown; | |
9974 | ||
9975 | case 't': | |
9976 | if (name[3] == 'p' && | |
9977 | name[4] == 'g' && | |
9978 | name[5] == 'r' && | |
9979 | name[6] == 'p') | |
9980 | { /* setpgrp */ | |
9981 | return -KEY_setpgrp; | |
9982 | } | |
9983 | ||
9984 | goto unknown; | |
9985 | ||
9986 | default: | |
9987 | goto unknown; | |
9988 | } | |
9989 | ||
9990 | case 'h': | |
9991 | if (name[2] == 'm' && | |
9992 | name[3] == 'r' && | |
9993 | name[4] == 'e' && | |
9994 | name[5] == 'a' && | |
9995 | name[6] == 'd') | |
9996 | { /* shmread */ | |
9997 | return -KEY_shmread; | |
9998 | } | |
9999 | ||
10000 | goto unknown; | |
10001 | ||
10002 | case 'p': | |
10003 | if (name[2] == 'r' && | |
10004 | name[3] == 'i' && | |
10005 | name[4] == 'n' && | |
10006 | name[5] == 't' && | |
10007 | name[6] == 'f') | |
10008 | { /* sprintf */ | |
10009 | return -KEY_sprintf; | |
10010 | } | |
10011 | ||
10012 | goto unknown; | |
10013 | ||
10014 | case 'y': | |
10015 | switch (name[2]) | |
10016 | { | |
10017 | case 'm': | |
10018 | if (name[3] == 'l' && | |
10019 | name[4] == 'i' && | |
10020 | name[5] == 'n' && | |
10021 | name[6] == 'k') | |
10022 | { /* symlink */ | |
10023 | return -KEY_symlink; | |
10024 | } | |
10025 | ||
10026 | goto unknown; | |
10027 | ||
10028 | case 's': | |
10029 | switch (name[3]) | |
10030 | { | |
10031 | case 'c': | |
10032 | if (name[4] == 'a' && | |
10033 | name[5] == 'l' && | |
10034 | name[6] == 'l') | |
10035 | { /* syscall */ | |
10036 | return -KEY_syscall; | |
10037 | } | |
10038 | ||
10039 | goto unknown; | |
10040 | ||
10041 | case 'o': | |
10042 | if (name[4] == 'p' && | |
10043 | name[5] == 'e' && | |
10044 | name[6] == 'n') | |
10045 | { /* sysopen */ | |
10046 | return -KEY_sysopen; | |
10047 | } | |
10048 | ||
10049 | goto unknown; | |
10050 | ||
10051 | case 'r': | |
10052 | if (name[4] == 'e' && | |
10053 | name[5] == 'a' && | |
10054 | name[6] == 'd') | |
10055 | { /* sysread */ | |
10056 | return -KEY_sysread; | |
10057 | } | |
10058 | ||
10059 | goto unknown; | |
10060 | ||
10061 | case 's': | |
10062 | if (name[4] == 'e' && | |
10063 | name[5] == 'e' && | |
10064 | name[6] == 'k') | |
10065 | { /* sysseek */ | |
10066 | return -KEY_sysseek; | |
10067 | } | |
10068 | ||
10069 | goto unknown; | |
10070 | ||
10071 | default: | |
10072 | goto unknown; | |
10073 | } | |
10074 | ||
10075 | default: | |
10076 | goto unknown; | |
10077 | } | |
10078 | ||
10079 | default: | |
10080 | goto unknown; | |
10081 | } | |
10082 | ||
10083 | case 't': | |
10084 | if (name[1] == 'e' && | |
10085 | name[2] == 'l' && | |
10086 | name[3] == 'l' && | |
10087 | name[4] == 'd' && | |
10088 | name[5] == 'i' && | |
10089 | name[6] == 'r') | |
10090 | { /* telldir */ | |
10091 | return -KEY_telldir; | |
10092 | } | |
10093 | ||
10094 | goto unknown; | |
10095 | ||
10096 | case 'u': | |
10097 | switch (name[1]) | |
10098 | { | |
10099 | case 'c': | |
10100 | if (name[2] == 'f' && | |
10101 | name[3] == 'i' && | |
10102 | name[4] == 'r' && | |
10103 | name[5] == 's' && | |
10104 | name[6] == 't') | |
10105 | { /* ucfirst */ | |
10106 | return -KEY_ucfirst; | |
10107 | } | |
10108 | ||
10109 | goto unknown; | |
10110 | ||
10111 | case 'n': | |
10112 | if (name[2] == 's' && | |
10113 | name[3] == 'h' && | |
10114 | name[4] == 'i' && | |
10115 | name[5] == 'f' && | |
10116 | name[6] == 't') | |
10117 | { /* unshift */ | |
10118 | return -KEY_unshift; | |
10119 | } | |
10120 | ||
10121 | goto unknown; | |
10122 | ||
10123 | default: | |
10124 | goto unknown; | |
10125 | } | |
10126 | ||
10127 | case 'w': | |
10128 | if (name[1] == 'a' && | |
10129 | name[2] == 'i' && | |
10130 | name[3] == 't' && | |
10131 | name[4] == 'p' && | |
10132 | name[5] == 'i' && | |
10133 | name[6] == 'd') | |
10134 | { /* waitpid */ | |
10135 | return -KEY_waitpid; | |
10136 | } | |
10137 | ||
10138 | goto unknown; | |
10139 | ||
10140 | default: | |
10141 | goto unknown; | |
10142 | } | |
10143 | ||
10144 | case 8: /* 26 tokens of length 8 */ | |
10145 | switch (name[0]) | |
10146 | { | |
10147 | case 'A': | |
10148 | if (name[1] == 'U' && | |
10149 | name[2] == 'T' && | |
10150 | name[3] == 'O' && | |
10151 | name[4] == 'L' && | |
10152 | name[5] == 'O' && | |
10153 | name[6] == 'A' && | |
10154 | name[7] == 'D') | |
10155 | { /* AUTOLOAD */ | |
10156 | return KEY_AUTOLOAD; | |
10157 | } | |
10158 | ||
10159 | goto unknown; | |
10160 | ||
10161 | case '_': | |
10162 | if (name[1] == '_') | |
10163 | { | |
10164 | switch (name[2]) | |
10165 | { | |
10166 | case 'D': | |
10167 | if (name[3] == 'A' && | |
10168 | name[4] == 'T' && | |
10169 | name[5] == 'A' && | |
10170 | name[6] == '_' && | |
10171 | name[7] == '_') | |
10172 | { /* __DATA__ */ | |
10173 | return KEY___DATA__; | |
10174 | } | |
10175 | ||
10176 | goto unknown; | |
10177 | ||
10178 | case 'F': | |
10179 | if (name[3] == 'I' && | |
10180 | name[4] == 'L' && | |
10181 | name[5] == 'E' && | |
10182 | name[6] == '_' && | |
10183 | name[7] == '_') | |
10184 | { /* __FILE__ */ | |
10185 | return -KEY___FILE__; | |
10186 | } | |
10187 | ||
10188 | goto unknown; | |
10189 | ||
10190 | case 'L': | |
10191 | if (name[3] == 'I' && | |
10192 | name[4] == 'N' && | |
10193 | name[5] == 'E' && | |
10194 | name[6] == '_' && | |
10195 | name[7] == '_') | |
10196 | { /* __LINE__ */ | |
10197 | return -KEY___LINE__; | |
10198 | } | |
10199 | ||
10200 | goto unknown; | |
10201 | ||
10202 | default: | |
10203 | goto unknown; | |
10204 | } | |
10205 | } | |
10206 | ||
10207 | goto unknown; | |
10208 | ||
10209 | case 'c': | |
10210 | switch (name[1]) | |
10211 | { | |
10212 | case 'l': | |
10213 | if (name[2] == 'o' && | |
10214 | name[3] == 's' && | |
10215 | name[4] == 'e' && | |
10216 | name[5] == 'd' && | |
10217 | name[6] == 'i' && | |
10218 | name[7] == 'r') | |
10219 | { /* closedir */ | |
10220 | return -KEY_closedir; | |
10221 | } | |
10222 | ||
10223 | goto unknown; | |
10224 | ||
10225 | case 'o': | |
10226 | if (name[2] == 'n' && | |
10227 | name[3] == 't' && | |
10228 | name[4] == 'i' && | |
10229 | name[5] == 'n' && | |
10230 | name[6] == 'u' && | |
10231 | name[7] == 'e') | |
10232 | { /* continue */ | |
10233 | return -KEY_continue; | |
10234 | } | |
10235 | ||
10236 | goto unknown; | |
10237 | ||
10238 | default: | |
10239 | goto unknown; | |
10240 | } | |
10241 | ||
10242 | case 'd': | |
10243 | if (name[1] == 'b' && | |
10244 | name[2] == 'm' && | |
10245 | name[3] == 'c' && | |
10246 | name[4] == 'l' && | |
10247 | name[5] == 'o' && | |
10248 | name[6] == 's' && | |
10249 | name[7] == 'e') | |
10250 | { /* dbmclose */ | |
10251 | return -KEY_dbmclose; | |
10252 | } | |
10253 | ||
10254 | goto unknown; | |
10255 | ||
10256 | case 'e': | |
10257 | if (name[1] == 'n' && | |
10258 | name[2] == 'd') | |
10259 | { | |
10260 | switch (name[3]) | |
10261 | { | |
10262 | case 'g': | |
10263 | if (name[4] == 'r' && | |
10264 | name[5] == 'e' && | |
10265 | name[6] == 'n' && | |
10266 | name[7] == 't') | |
10267 | { /* endgrent */ | |
10268 | return -KEY_endgrent; | |
10269 | } | |
10270 | ||
10271 | goto unknown; | |
10272 | ||
10273 | case 'p': | |
10274 | if (name[4] == 'w' && | |
10275 | name[5] == 'e' && | |
10276 | name[6] == 'n' && | |
10277 | name[7] == 't') | |
10278 | { /* endpwent */ | |
10279 | return -KEY_endpwent; | |
10280 | } | |
10281 | ||
10282 | goto unknown; | |
10283 | ||
10284 | default: | |
10285 | goto unknown; | |
10286 | } | |
10287 | } | |
10288 | ||
10289 | goto unknown; | |
10290 | ||
10291 | case 'f': | |
10292 | if (name[1] == 'o' && | |
10293 | name[2] == 'r' && | |
10294 | name[3] == 'm' && | |
10295 | name[4] == 'l' && | |
10296 | name[5] == 'i' && | |
10297 | name[6] == 'n' && | |
10298 | name[7] == 'e') | |
10299 | { /* formline */ | |
10300 | return -KEY_formline; | |
10301 | } | |
10302 | ||
10303 | goto unknown; | |
10304 | ||
10305 | case 'g': | |
10306 | if (name[1] == 'e' && | |
10307 | name[2] == 't') | |
10308 | { | |
10309 | switch (name[3]) | |
10310 | { | |
10311 | case 'g': | |
10312 | if (name[4] == 'r') | |
10313 | { | |
10314 | switch (name[5]) | |
10315 | { | |
10316 | case 'e': | |
10317 | if (name[6] == 'n' && | |
10318 | name[7] == 't') | |
10319 | { /* getgrent */ | |
10320 | return -KEY_getgrent; | |
10321 | } | |
10322 | ||
10323 | goto unknown; | |
10324 | ||
10325 | case 'g': | |
10326 | if (name[6] == 'i' && | |
10327 | name[7] == 'd') | |
10328 | { /* getgrgid */ | |
10329 | return -KEY_getgrgid; | |
10330 | } | |
10331 | ||
10332 | goto unknown; | |
10333 | ||
10334 | case 'n': | |
10335 | if (name[6] == 'a' && | |
10336 | name[7] == 'm') | |
10337 | { /* getgrnam */ | |
10338 | return -KEY_getgrnam; | |
10339 | } | |
10340 | ||
10341 | goto unknown; | |
10342 | ||
10343 | default: | |
10344 | goto unknown; | |
10345 | } | |
10346 | } | |
10347 | ||
10348 | goto unknown; | |
10349 | ||
10350 | case 'l': | |
10351 | if (name[4] == 'o' && | |
10352 | name[5] == 'g' && | |
10353 | name[6] == 'i' && | |
10354 | name[7] == 'n') | |
10355 | { /* getlogin */ | |
10356 | return -KEY_getlogin; | |
10357 | } | |
10358 | ||
10359 | goto unknown; | |
10360 | ||
10361 | case 'p': | |
10362 | if (name[4] == 'w') | |
10363 | { | |
10364 | switch (name[5]) | |
10365 | { | |
10366 | case 'e': | |
10367 | if (name[6] == 'n' && | |
10368 | name[7] == 't') | |
10369 | { /* getpwent */ | |
10370 | return -KEY_getpwent; | |
10371 | } | |
10372 | ||
10373 | goto unknown; | |
10374 | ||
10375 | case 'n': | |
10376 | if (name[6] == 'a' && | |
10377 | name[7] == 'm') | |
10378 | { /* getpwnam */ | |
10379 | return -KEY_getpwnam; | |
10380 | } | |
10381 | ||
10382 | goto unknown; | |
10383 | ||
10384 | case 'u': | |
10385 | if (name[6] == 'i' && | |
10386 | name[7] == 'd') | |
10387 | { /* getpwuid */ | |
10388 | return -KEY_getpwuid; | |
10389 | } | |
10390 | ||
10391 | goto unknown; | |
10392 | ||
10393 | default: | |
10394 | goto unknown; | |
10395 | } | |
10396 | } | |
10397 | ||
10398 | goto unknown; | |
10399 | ||
10400 | default: | |
10401 | goto unknown; | |
10402 | } | |
10403 | } | |
10404 | ||
10405 | goto unknown; | |
10406 | ||
10407 | case 'r': | |
10408 | if (name[1] == 'e' && | |
10409 | name[2] == 'a' && | |
10410 | name[3] == 'd') | |
10411 | { | |
10412 | switch (name[4]) | |
10413 | { | |
10414 | case 'l': | |
10415 | if (name[5] == 'i' && | |
10416 | name[6] == 'n') | |
10417 | { | |
10418 | switch (name[7]) | |
10419 | { | |
10420 | case 'e': | |
10421 | { /* readline */ | |
10422 | return -KEY_readline; | |
10423 | } | |
10424 | ||
4c3bbe0f MHM |
10425 | case 'k': |
10426 | { /* readlink */ | |
10427 | return -KEY_readlink; | |
10428 | } | |
10429 | ||
4c3bbe0f MHM |
10430 | default: |
10431 | goto unknown; | |
10432 | } | |
10433 | } | |
10434 | ||
10435 | goto unknown; | |
10436 | ||
10437 | case 'p': | |
10438 | if (name[5] == 'i' && | |
10439 | name[6] == 'p' && | |
10440 | name[7] == 'e') | |
10441 | { /* readpipe */ | |
10442 | return -KEY_readpipe; | |
10443 | } | |
10444 | ||
10445 | goto unknown; | |
10446 | ||
10447 | default: | |
10448 | goto unknown; | |
10449 | } | |
10450 | } | |
10451 | ||
10452 | goto unknown; | |
10453 | ||
10454 | case 's': | |
10455 | switch (name[1]) | |
10456 | { | |
10457 | case 'e': | |
10458 | if (name[2] == 't') | |
10459 | { | |
10460 | switch (name[3]) | |
10461 | { | |
10462 | case 'g': | |
10463 | if (name[4] == 'r' && | |
10464 | name[5] == 'e' && | |
10465 | name[6] == 'n' && | |
10466 | name[7] == 't') | |
10467 | { /* setgrent */ | |
10468 | return -KEY_setgrent; | |
10469 | } | |
10470 | ||
10471 | goto unknown; | |
10472 | ||
10473 | case 'p': | |
10474 | if (name[4] == 'w' && | |
10475 | name[5] == 'e' && | |
10476 | name[6] == 'n' && | |
10477 | name[7] == 't') | |
10478 | { /* setpwent */ | |
10479 | return -KEY_setpwent; | |
10480 | } | |
10481 | ||
10482 | goto unknown; | |
10483 | ||
10484 | default: | |
10485 | goto unknown; | |
10486 | } | |
10487 | } | |
10488 | ||
10489 | goto unknown; | |
10490 | ||
10491 | case 'h': | |
10492 | switch (name[2]) | |
10493 | { | |
10494 | case 'm': | |
10495 | if (name[3] == 'w' && | |
10496 | name[4] == 'r' && | |
10497 | name[5] == 'i' && | |
10498 | name[6] == 't' && | |
10499 | name[7] == 'e') | |
10500 | { /* shmwrite */ | |
10501 | return -KEY_shmwrite; | |
10502 | } | |
10503 | ||
10504 | goto unknown; | |
10505 | ||
10506 | case 'u': | |
10507 | if (name[3] == 't' && | |
10508 | name[4] == 'd' && | |
10509 | name[5] == 'o' && | |
10510 | name[6] == 'w' && | |
10511 | name[7] == 'n') | |
10512 | { /* shutdown */ | |
10513 | return -KEY_shutdown; | |
10514 | } | |
10515 | ||
10516 | goto unknown; | |
10517 | ||
10518 | default: | |
10519 | goto unknown; | |
10520 | } | |
10521 | ||
10522 | case 'y': | |
10523 | if (name[2] == 's' && | |
10524 | name[3] == 'w' && | |
10525 | name[4] == 'r' && | |
10526 | name[5] == 'i' && | |
10527 | name[6] == 't' && | |
10528 | name[7] == 'e') | |
10529 | { /* syswrite */ | |
10530 | return -KEY_syswrite; | |
10531 | } | |
10532 | ||
10533 | goto unknown; | |
10534 | ||
10535 | default: | |
10536 | goto unknown; | |
10537 | } | |
10538 | ||
10539 | case 't': | |
10540 | if (name[1] == 'r' && | |
10541 | name[2] == 'u' && | |
10542 | name[3] == 'n' && | |
10543 | name[4] == 'c' && | |
10544 | name[5] == 'a' && | |
10545 | name[6] == 't' && | |
10546 | name[7] == 'e') | |
10547 | { /* truncate */ | |
10548 | return -KEY_truncate; | |
10549 | } | |
10550 | ||
10551 | goto unknown; | |
10552 | ||
10553 | default: | |
10554 | goto unknown; | |
10555 | } | |
10556 | ||
3c10abe3 | 10557 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
10558 | switch (name[0]) |
10559 | { | |
3c10abe3 AG |
10560 | case 'U': |
10561 | if (name[1] == 'N' && | |
10562 | name[2] == 'I' && | |
10563 | name[3] == 'T' && | |
10564 | name[4] == 'C' && | |
10565 | name[5] == 'H' && | |
10566 | name[6] == 'E' && | |
10567 | name[7] == 'C' && | |
10568 | name[8] == 'K') | |
10569 | { /* UNITCHECK */ | |
10570 | return KEY_UNITCHECK; | |
10571 | } | |
10572 | ||
10573 | goto unknown; | |
10574 | ||
4c3bbe0f MHM |
10575 | case 'e': |
10576 | if (name[1] == 'n' && | |
10577 | name[2] == 'd' && | |
10578 | name[3] == 'n' && | |
10579 | name[4] == 'e' && | |
10580 | name[5] == 't' && | |
10581 | name[6] == 'e' && | |
10582 | name[7] == 'n' && | |
10583 | name[8] == 't') | |
10584 | { /* endnetent */ | |
10585 | return -KEY_endnetent; | |
10586 | } | |
10587 | ||
10588 | goto unknown; | |
10589 | ||
10590 | case 'g': | |
10591 | if (name[1] == 'e' && | |
10592 | name[2] == 't' && | |
10593 | name[3] == 'n' && | |
10594 | name[4] == 'e' && | |
10595 | name[5] == 't' && | |
10596 | name[6] == 'e' && | |
10597 | name[7] == 'n' && | |
10598 | name[8] == 't') | |
10599 | { /* getnetent */ | |
10600 | return -KEY_getnetent; | |
10601 | } | |
10602 | ||
10603 | goto unknown; | |
10604 | ||
10605 | case 'l': | |
10606 | if (name[1] == 'o' && | |
10607 | name[2] == 'c' && | |
10608 | name[3] == 'a' && | |
10609 | name[4] == 'l' && | |
10610 | name[5] == 't' && | |
10611 | name[6] == 'i' && | |
10612 | name[7] == 'm' && | |
10613 | name[8] == 'e') | |
10614 | { /* localtime */ | |
10615 | return -KEY_localtime; | |
10616 | } | |
10617 | ||
10618 | goto unknown; | |
10619 | ||
10620 | case 'p': | |
10621 | if (name[1] == 'r' && | |
10622 | name[2] == 'o' && | |
10623 | name[3] == 't' && | |
10624 | name[4] == 'o' && | |
10625 | name[5] == 't' && | |
10626 | name[6] == 'y' && | |
10627 | name[7] == 'p' && | |
10628 | name[8] == 'e') | |
10629 | { /* prototype */ | |
10630 | return KEY_prototype; | |
10631 | } | |
10632 | ||
10633 | goto unknown; | |
10634 | ||
10635 | case 'q': | |
10636 | if (name[1] == 'u' && | |
10637 | name[2] == 'o' && | |
10638 | name[3] == 't' && | |
10639 | name[4] == 'e' && | |
10640 | name[5] == 'm' && | |
10641 | name[6] == 'e' && | |
10642 | name[7] == 't' && | |
10643 | name[8] == 'a') | |
10644 | { /* quotemeta */ | |
10645 | return -KEY_quotemeta; | |
10646 | } | |
10647 | ||
10648 | goto unknown; | |
10649 | ||
10650 | case 'r': | |
10651 | if (name[1] == 'e' && | |
10652 | name[2] == 'w' && | |
10653 | name[3] == 'i' && | |
10654 | name[4] == 'n' && | |
10655 | name[5] == 'd' && | |
10656 | name[6] == 'd' && | |
10657 | name[7] == 'i' && | |
10658 | name[8] == 'r') | |
10659 | { /* rewinddir */ | |
10660 | return -KEY_rewinddir; | |
10661 | } | |
10662 | ||
10663 | goto unknown; | |
10664 | ||
10665 | case 's': | |
10666 | if (name[1] == 'e' && | |
10667 | name[2] == 't' && | |
10668 | name[3] == 'n' && | |
10669 | name[4] == 'e' && | |
10670 | name[5] == 't' && | |
10671 | name[6] == 'e' && | |
10672 | name[7] == 'n' && | |
10673 | name[8] == 't') | |
10674 | { /* setnetent */ | |
10675 | return -KEY_setnetent; | |
10676 | } | |
10677 | ||
10678 | goto unknown; | |
10679 | ||
10680 | case 'w': | |
10681 | if (name[1] == 'a' && | |
10682 | name[2] == 'n' && | |
10683 | name[3] == 't' && | |
10684 | name[4] == 'a' && | |
10685 | name[5] == 'r' && | |
10686 | name[6] == 'r' && | |
10687 | name[7] == 'a' && | |
10688 | name[8] == 'y') | |
10689 | { /* wantarray */ | |
10690 | return -KEY_wantarray; | |
10691 | } | |
10692 | ||
10693 | goto unknown; | |
10694 | ||
10695 | default: | |
10696 | goto unknown; | |
10697 | } | |
10698 | ||
10699 | case 10: /* 9 tokens of length 10 */ | |
10700 | switch (name[0]) | |
10701 | { | |
10702 | case 'e': | |
10703 | if (name[1] == 'n' && | |
10704 | name[2] == 'd') | |
10705 | { | |
10706 | switch (name[3]) | |
10707 | { | |
10708 | case 'h': | |
10709 | if (name[4] == 'o' && | |
10710 | name[5] == 's' && | |
10711 | name[6] == 't' && | |
10712 | name[7] == 'e' && | |
10713 | name[8] == 'n' && | |
10714 | name[9] == 't') | |
10715 | { /* endhostent */ | |
10716 | return -KEY_endhostent; | |
10717 | } | |
10718 | ||
10719 | goto unknown; | |
10720 | ||
10721 | case 's': | |
10722 | if (name[4] == 'e' && | |
10723 | name[5] == 'r' && | |
10724 | name[6] == 'v' && | |
10725 | name[7] == 'e' && | |
10726 | name[8] == 'n' && | |
10727 | name[9] == 't') | |
10728 | { /* endservent */ | |
10729 | return -KEY_endservent; | |
10730 | } | |
10731 | ||
10732 | goto unknown; | |
10733 | ||
10734 | default: | |
10735 | goto unknown; | |
10736 | } | |
10737 | } | |
10738 | ||
10739 | goto unknown; | |
10740 | ||
10741 | case 'g': | |
10742 | if (name[1] == 'e' && | |
10743 | name[2] == 't') | |
10744 | { | |
10745 | switch (name[3]) | |
10746 | { | |
10747 | case 'h': | |
10748 | if (name[4] == 'o' && | |
10749 | name[5] == 's' && | |
10750 | name[6] == 't' && | |
10751 | name[7] == 'e' && | |
10752 | name[8] == 'n' && | |
10753 | name[9] == 't') | |
10754 | { /* gethostent */ | |
10755 | return -KEY_gethostent; | |
10756 | } | |
10757 | ||
10758 | goto unknown; | |
10759 | ||
10760 | case 's': | |
10761 | switch (name[4]) | |
10762 | { | |
10763 | case 'e': | |
10764 | if (name[5] == 'r' && | |
10765 | name[6] == 'v' && | |
10766 | name[7] == 'e' && | |
10767 | name[8] == 'n' && | |
10768 | name[9] == 't') | |
10769 | { /* getservent */ | |
10770 | return -KEY_getservent; | |
10771 | } | |
10772 | ||
10773 | goto unknown; | |
10774 | ||
10775 | case 'o': | |
10776 | if (name[5] == 'c' && | |
10777 | name[6] == 'k' && | |
10778 | name[7] == 'o' && | |
10779 | name[8] == 'p' && | |
10780 | name[9] == 't') | |
10781 | { /* getsockopt */ | |
10782 | return -KEY_getsockopt; | |
10783 | } | |
10784 | ||
10785 | goto unknown; | |
10786 | ||
10787 | default: | |
10788 | goto unknown; | |
10789 | } | |
10790 | ||
10791 | default: | |
10792 | goto unknown; | |
10793 | } | |
10794 | } | |
10795 | ||
10796 | goto unknown; | |
10797 | ||
10798 | case 's': | |
10799 | switch (name[1]) | |
10800 | { | |
10801 | case 'e': | |
10802 | if (name[2] == 't') | |
10803 | { | |
10804 | switch (name[3]) | |
10805 | { | |
10806 | case 'h': | |
10807 | if (name[4] == 'o' && | |
10808 | name[5] == 's' && | |
10809 | name[6] == 't' && | |
10810 | name[7] == 'e' && | |
10811 | name[8] == 'n' && | |
10812 | name[9] == 't') | |
10813 | { /* sethostent */ | |
10814 | return -KEY_sethostent; | |
10815 | } | |
10816 | ||
10817 | goto unknown; | |
10818 | ||
10819 | case 's': | |
10820 | switch (name[4]) | |
10821 | { | |
10822 | case 'e': | |
10823 | if (name[5] == 'r' && | |
10824 | name[6] == 'v' && | |
10825 | name[7] == 'e' && | |
10826 | name[8] == 'n' && | |
10827 | name[9] == 't') | |
10828 | { /* setservent */ | |
10829 | return -KEY_setservent; | |
10830 | } | |
10831 | ||
10832 | goto unknown; | |
10833 | ||
10834 | case 'o': | |
10835 | if (name[5] == 'c' && | |
10836 | name[6] == 'k' && | |
10837 | name[7] == 'o' && | |
10838 | name[8] == 'p' && | |
10839 | name[9] == 't') | |
10840 | { /* setsockopt */ | |
10841 | return -KEY_setsockopt; | |
10842 | } | |
10843 | ||
10844 | goto unknown; | |
10845 | ||
10846 | default: | |
10847 | goto unknown; | |
10848 | } | |
10849 | ||
10850 | default: | |
10851 | goto unknown; | |
10852 | } | |
10853 | } | |
10854 | ||
10855 | goto unknown; | |
10856 | ||
10857 | case 'o': | |
10858 | if (name[2] == 'c' && | |
10859 | name[3] == 'k' && | |
10860 | name[4] == 'e' && | |
10861 | name[5] == 't' && | |
10862 | name[6] == 'p' && | |
10863 | name[7] == 'a' && | |
10864 | name[8] == 'i' && | |
10865 | name[9] == 'r') | |
10866 | { /* socketpair */ | |
10867 | return -KEY_socketpair; | |
10868 | } | |
10869 | ||
10870 | goto unknown; | |
10871 | ||
10872 | default: | |
10873 | goto unknown; | |
10874 | } | |
10875 | ||
10876 | default: | |
10877 | goto unknown; | |
e2e1dd5a | 10878 | } |
4c3bbe0f MHM |
10879 | |
10880 | case 11: /* 8 tokens of length 11 */ | |
10881 | switch (name[0]) | |
10882 | { | |
10883 | case '_': | |
10884 | if (name[1] == '_' && | |
10885 | name[2] == 'P' && | |
10886 | name[3] == 'A' && | |
10887 | name[4] == 'C' && | |
10888 | name[5] == 'K' && | |
10889 | name[6] == 'A' && | |
10890 | name[7] == 'G' && | |
10891 | name[8] == 'E' && | |
10892 | name[9] == '_' && | |
10893 | name[10] == '_') | |
10894 | { /* __PACKAGE__ */ | |
10895 | return -KEY___PACKAGE__; | |
10896 | } | |
10897 | ||
10898 | goto unknown; | |
10899 | ||
10900 | case 'e': | |
10901 | if (name[1] == 'n' && | |
10902 | name[2] == 'd' && | |
10903 | name[3] == 'p' && | |
10904 | name[4] == 'r' && | |
10905 | name[5] == 'o' && | |
10906 | name[6] == 't' && | |
10907 | name[7] == 'o' && | |
10908 | name[8] == 'e' && | |
10909 | name[9] == 'n' && | |
10910 | name[10] == 't') | |
10911 | { /* endprotoent */ | |
10912 | return -KEY_endprotoent; | |
10913 | } | |
10914 | ||
10915 | goto unknown; | |
10916 | ||
10917 | case 'g': | |
10918 | if (name[1] == 'e' && | |
10919 | name[2] == 't') | |
10920 | { | |
10921 | switch (name[3]) | |
10922 | { | |
10923 | case 'p': | |
10924 | switch (name[4]) | |
10925 | { | |
10926 | case 'e': | |
10927 | if (name[5] == 'e' && | |
10928 | name[6] == 'r' && | |
10929 | name[7] == 'n' && | |
10930 | name[8] == 'a' && | |
10931 | name[9] == 'm' && | |
10932 | name[10] == 'e') | |
10933 | { /* getpeername */ | |
10934 | return -KEY_getpeername; | |
10935 | } | |
10936 | ||
10937 | goto unknown; | |
10938 | ||
10939 | case 'r': | |
10940 | switch (name[5]) | |
10941 | { | |
10942 | case 'i': | |
10943 | if (name[6] == 'o' && | |
10944 | name[7] == 'r' && | |
10945 | name[8] == 'i' && | |
10946 | name[9] == 't' && | |
10947 | name[10] == 'y') | |
10948 | { /* getpriority */ | |
10949 | return -KEY_getpriority; | |
10950 | } | |
10951 | ||
10952 | goto unknown; | |
10953 | ||
10954 | case 'o': | |
10955 | if (name[6] == 't' && | |
10956 | name[7] == 'o' && | |
10957 | name[8] == 'e' && | |
10958 | name[9] == 'n' && | |
10959 | name[10] == 't') | |
10960 | { /* getprotoent */ | |
10961 | return -KEY_getprotoent; | |
10962 | } | |
10963 | ||
10964 | goto unknown; | |
10965 | ||
10966 | default: | |
10967 | goto unknown; | |
10968 | } | |
10969 | ||
10970 | default: | |
10971 | goto unknown; | |
10972 | } | |
10973 | ||
10974 | case 's': | |
10975 | if (name[4] == 'o' && | |
10976 | name[5] == 'c' && | |
10977 | name[6] == 'k' && | |
10978 | name[7] == 'n' && | |
10979 | name[8] == 'a' && | |
10980 | name[9] == 'm' && | |
10981 | name[10] == 'e') | |
10982 | { /* getsockname */ | |
10983 | return -KEY_getsockname; | |
10984 | } | |
10985 | ||
10986 | goto unknown; | |
10987 | ||
10988 | default: | |
10989 | goto unknown; | |
10990 | } | |
10991 | } | |
10992 | ||
10993 | goto unknown; | |
10994 | ||
10995 | case 's': | |
10996 | if (name[1] == 'e' && | |
10997 | name[2] == 't' && | |
10998 | name[3] == 'p' && | |
10999 | name[4] == 'r') | |
11000 | { | |
11001 | switch (name[5]) | |
11002 | { | |
11003 | case 'i': | |
11004 | if (name[6] == 'o' && | |
11005 | name[7] == 'r' && | |
11006 | name[8] == 'i' && | |
11007 | name[9] == 't' && | |
11008 | name[10] == 'y') | |
11009 | { /* setpriority */ | |
11010 | return -KEY_setpriority; | |
11011 | } | |
11012 | ||
11013 | goto unknown; | |
11014 | ||
11015 | case 'o': | |
11016 | if (name[6] == 't' && | |
11017 | name[7] == 'o' && | |
11018 | name[8] == 'e' && | |
11019 | name[9] == 'n' && | |
11020 | name[10] == 't') | |
11021 | { /* setprotoent */ | |
11022 | return -KEY_setprotoent; | |
11023 | } | |
11024 | ||
11025 | goto unknown; | |
11026 | ||
11027 | default: | |
11028 | goto unknown; | |
11029 | } | |
11030 | } | |
11031 | ||
11032 | goto unknown; | |
11033 | ||
11034 | default: | |
11035 | goto unknown; | |
e2e1dd5a | 11036 | } |
4c3bbe0f MHM |
11037 | |
11038 | case 12: /* 2 tokens of length 12 */ | |
11039 | if (name[0] == 'g' && | |
11040 | name[1] == 'e' && | |
11041 | name[2] == 't' && | |
11042 | name[3] == 'n' && | |
11043 | name[4] == 'e' && | |
11044 | name[5] == 't' && | |
11045 | name[6] == 'b' && | |
11046 | name[7] == 'y') | |
11047 | { | |
11048 | switch (name[8]) | |
11049 | { | |
11050 | case 'a': | |
11051 | if (name[9] == 'd' && | |
11052 | name[10] == 'd' && | |
11053 | name[11] == 'r') | |
11054 | { /* getnetbyaddr */ | |
11055 | return -KEY_getnetbyaddr; | |
11056 | } | |
11057 | ||
11058 | goto unknown; | |
11059 | ||
11060 | case 'n': | |
11061 | if (name[9] == 'a' && | |
11062 | name[10] == 'm' && | |
11063 | name[11] == 'e') | |
11064 | { /* getnetbyname */ | |
11065 | return -KEY_getnetbyname; | |
11066 | } | |
11067 | ||
11068 | goto unknown; | |
11069 | ||
11070 | default: | |
11071 | goto unknown; | |
11072 | } | |
e2e1dd5a | 11073 | } |
4c3bbe0f MHM |
11074 | |
11075 | goto unknown; | |
11076 | ||
11077 | case 13: /* 4 tokens of length 13 */ | |
11078 | if (name[0] == 'g' && | |
11079 | name[1] == 'e' && | |
11080 | name[2] == 't') | |
11081 | { | |
11082 | switch (name[3]) | |
11083 | { | |
11084 | case 'h': | |
11085 | if (name[4] == 'o' && | |
11086 | name[5] == 's' && | |
11087 | name[6] == 't' && | |
11088 | name[7] == 'b' && | |
11089 | name[8] == 'y') | |
11090 | { | |
11091 | switch (name[9]) | |
11092 | { | |
11093 | case 'a': | |
11094 | if (name[10] == 'd' && | |
11095 | name[11] == 'd' && | |
11096 | name[12] == 'r') | |
11097 | { /* gethostbyaddr */ | |
11098 | return -KEY_gethostbyaddr; | |
11099 | } | |
11100 | ||
11101 | goto unknown; | |
11102 | ||
11103 | case 'n': | |
11104 | if (name[10] == 'a' && | |
11105 | name[11] == 'm' && | |
11106 | name[12] == 'e') | |
11107 | { /* gethostbyname */ | |
11108 | return -KEY_gethostbyname; | |
11109 | } | |
11110 | ||
11111 | goto unknown; | |
11112 | ||
11113 | default: | |
11114 | goto unknown; | |
11115 | } | |
11116 | } | |
11117 | ||
11118 | goto unknown; | |
11119 | ||
11120 | case 's': | |
11121 | if (name[4] == 'e' && | |
11122 | name[5] == 'r' && | |
11123 | name[6] == 'v' && | |
11124 | name[7] == 'b' && | |
11125 | name[8] == 'y') | |
11126 | { | |
11127 | switch (name[9]) | |
11128 | { | |
11129 | case 'n': | |
11130 | if (name[10] == 'a' && | |
11131 | name[11] == 'm' && | |
11132 | name[12] == 'e') | |
11133 | { /* getservbyname */ | |
11134 | return -KEY_getservbyname; | |
11135 | } | |
11136 | ||
11137 | goto unknown; | |
11138 | ||
11139 | case 'p': | |
11140 | if (name[10] == 'o' && | |
11141 | name[11] == 'r' && | |
11142 | name[12] == 't') | |
11143 | { /* getservbyport */ | |
11144 | return -KEY_getservbyport; | |
11145 | } | |
11146 | ||
11147 | goto unknown; | |
11148 | ||
11149 | default: | |
11150 | goto unknown; | |
11151 | } | |
11152 | } | |
11153 | ||
11154 | goto unknown; | |
11155 | ||
11156 | default: | |
11157 | goto unknown; | |
11158 | } | |
e2e1dd5a | 11159 | } |
4c3bbe0f MHM |
11160 | |
11161 | goto unknown; | |
11162 | ||
11163 | case 14: /* 1 tokens of length 14 */ | |
11164 | if (name[0] == 'g' && | |
11165 | name[1] == 'e' && | |
11166 | name[2] == 't' && | |
11167 | name[3] == 'p' && | |
11168 | name[4] == 'r' && | |
11169 | name[5] == 'o' && | |
11170 | name[6] == 't' && | |
11171 | name[7] == 'o' && | |
11172 | name[8] == 'b' && | |
11173 | name[9] == 'y' && | |
11174 | name[10] == 'n' && | |
11175 | name[11] == 'a' && | |
11176 | name[12] == 'm' && | |
11177 | name[13] == 'e') | |
11178 | { /* getprotobyname */ | |
11179 | return -KEY_getprotobyname; | |
11180 | } | |
11181 | ||
11182 | goto unknown; | |
11183 | ||
11184 | case 16: /* 1 tokens of length 16 */ | |
11185 | if (name[0] == 'g' && | |
11186 | name[1] == 'e' && | |
11187 | name[2] == 't' && | |
11188 | name[3] == 'p' && | |
11189 | name[4] == 'r' && | |
11190 | name[5] == 'o' && | |
11191 | name[6] == 't' && | |
11192 | name[7] == 'o' && | |
11193 | name[8] == 'b' && | |
11194 | name[9] == 'y' && | |
11195 | name[10] == 'n' && | |
11196 | name[11] == 'u' && | |
11197 | name[12] == 'm' && | |
11198 | name[13] == 'b' && | |
11199 | name[14] == 'e' && | |
11200 | name[15] == 'r') | |
11201 | { /* getprotobynumber */ | |
11202 | return -KEY_getprotobynumber; | |
11203 | } | |
11204 | ||
11205 | goto unknown; | |
11206 | ||
11207 | default: | |
11208 | goto unknown; | |
e2e1dd5a | 11209 | } |
4c3bbe0f MHM |
11210 | |
11211 | unknown: | |
e2e1dd5a | 11212 | return 0; |
a687059c LW |
11213 | } |
11214 | ||
76e3520e | 11215 | STATIC void |
c94115d8 | 11216 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 11217 | { |
97aff369 | 11218 | dVAR; |
2f3197b3 | 11219 | |
7918f24d NC |
11220 | PERL_ARGS_ASSERT_CHECKCOMMA; |
11221 | ||
d008e5eb | 11222 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
11223 | if (ckWARN(WARN_SYNTAX)) { |
11224 | int level = 1; | |
26ff0806 | 11225 | const char *w; |
d008e5eb GS |
11226 | for (w = s+2; *w && level; w++) { |
11227 | if (*w == '(') | |
11228 | ++level; | |
11229 | else if (*w == ')') | |
11230 | --level; | |
11231 | } | |
888fea98 NC |
11232 | while (isSPACE(*w)) |
11233 | ++w; | |
b1439985 RGS |
11234 | /* the list of chars below is for end of statements or |
11235 | * block / parens, boolean operators (&&, ||, //) and branch | |
11236 | * constructs (or, and, if, until, unless, while, err, for). | |
11237 | * Not a very solid hack... */ | |
11238 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 11239 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 11240 | "%s (...) interpreted as function",name); |
d008e5eb | 11241 | } |
2f3197b3 | 11242 | } |
3280af22 | 11243 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 11244 | s++; |
a687059c LW |
11245 | if (*s == '(') |
11246 | s++; | |
3280af22 | 11247 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11248 | s++; |
7e2040f0 | 11249 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 11250 | const char * const w = s++; |
7e2040f0 | 11251 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 11252 | s++; |
3280af22 | 11253 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11254 | s++; |
e929a76b | 11255 | if (*s == ',') { |
c94115d8 | 11256 | GV* gv; |
5458a98a | 11257 | if (keyword(w, s - w, 0)) |
e929a76b | 11258 | return; |
c94115d8 NC |
11259 | |
11260 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
11261 | if (gv && GvCVu(gv)) | |
abbb3198 | 11262 | return; |
cea2e8a9 | 11263 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
11264 | } |
11265 | } | |
11266 | } | |
11267 | ||
423cee85 JH |
11268 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
11269 | Best used as sv=new_constant(..., sv, ...). | |
11270 | If s, pv are NULL, calls subroutine with one argument, | |
11271 | and type is used with error messages only. */ | |
11272 | ||
b3ac6de7 | 11273 | STATIC SV * |
eb0d8d16 NC |
11274 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
11275 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 11276 | { |
27da23d5 | 11277 | dVAR; dSP; |
890ce7af | 11278 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 11279 | SV *res; |
b3ac6de7 IZ |
11280 | SV **cvp; |
11281 | SV *cv, *typesv; | |
89e33a05 | 11282 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 11283 | |
7918f24d NC |
11284 | PERL_ARGS_ASSERT_NEW_CONSTANT; |
11285 | ||
f0af216f | 11286 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
11287 | SV *msg; |
11288 | ||
10edeb5d JH |
11289 | why2 = (const char *) |
11290 | (strEQ(key,"charnames") | |
11291 | ? "(possibly a missing \"use charnames ...\")" | |
11292 | : ""); | |
4e553d73 | 11293 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
11294 | (type ? type: "undef"), why2); |
11295 | ||
11296 | /* This is convoluted and evil ("goto considered harmful") | |
11297 | * but I do not understand the intricacies of all the different | |
11298 | * failure modes of %^H in here. The goal here is to make | |
11299 | * the most probable error message user-friendly. --jhi */ | |
11300 | ||
11301 | goto msgdone; | |
11302 | ||
423cee85 | 11303 | report: |
4e553d73 | 11304 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 11305 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 11306 | msgdone: |
95a20fc0 | 11307 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
11308 | SvREFCNT_dec(msg); |
11309 | return sv; | |
11310 | } | |
eb0d8d16 | 11311 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 11312 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
11313 | why1 = "$^H{"; |
11314 | why2 = key; | |
f0af216f | 11315 | why3 = "} is not defined"; |
423cee85 | 11316 | goto report; |
b3ac6de7 IZ |
11317 | } |
11318 | sv_2mortal(sv); /* Parent created it permanently */ | |
11319 | cv = *cvp; | |
423cee85 | 11320 | if (!pv && s) |
59cd0e26 | 11321 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 11322 | if (type && pv) |
59cd0e26 | 11323 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 11324 | else |
423cee85 | 11325 | typesv = &PL_sv_undef; |
4e553d73 | 11326 | |
e788e7d3 | 11327 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
11328 | ENTER ; |
11329 | SAVETMPS; | |
4e553d73 | 11330 | |
423cee85 | 11331 | PUSHMARK(SP) ; |
a5845cb7 | 11332 | EXTEND(sp, 3); |
423cee85 JH |
11333 | if (pv) |
11334 | PUSHs(pv); | |
b3ac6de7 | 11335 | PUSHs(sv); |
423cee85 JH |
11336 | if (pv) |
11337 | PUSHs(typesv); | |
b3ac6de7 | 11338 | PUTBACK; |
423cee85 | 11339 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 11340 | |
423cee85 | 11341 | SPAGAIN ; |
4e553d73 | 11342 | |
423cee85 | 11343 | /* Check the eval first */ |
9b0e499b | 11344 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 11345 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 11346 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 11347 | (void)POPs; |
b37c2d43 | 11348 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
11349 | } |
11350 | else { | |
11351 | res = POPs; | |
b37c2d43 | 11352 | SvREFCNT_inc_simple_void(res); |
423cee85 | 11353 | } |
4e553d73 | 11354 | |
423cee85 JH |
11355 | PUTBACK ; |
11356 | FREETMPS ; | |
11357 | LEAVE ; | |
b3ac6de7 | 11358 | POPSTACK; |
4e553d73 | 11359 | |
b3ac6de7 | 11360 | if (!SvOK(res)) { |
423cee85 JH |
11361 | why1 = "Call to &{$^H{"; |
11362 | why2 = key; | |
f0af216f | 11363 | why3 = "}} did not return a defined value"; |
423cee85 JH |
11364 | sv = res; |
11365 | goto report; | |
9b0e499b | 11366 | } |
423cee85 | 11367 | |
9b0e499b | 11368 | return res; |
b3ac6de7 | 11369 | } |
4e553d73 | 11370 | |
d0a148a6 NC |
11371 | /* Returns a NUL terminated string, with the length of the string written to |
11372 | *slp | |
11373 | */ | |
76e3520e | 11374 | STATIC char * |
cea2e8a9 | 11375 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 11376 | { |
97aff369 | 11377 | dVAR; |
463ee0b2 | 11378 | register char *d = dest; |
890ce7af | 11379 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
7918f24d NC |
11380 | |
11381 | PERL_ARGS_ASSERT_SCAN_WORD; | |
11382 | ||
463ee0b2 | 11383 | for (;;) { |
8903cb82 | 11384 | if (d >= e) |
cea2e8a9 | 11385 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11386 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11387 | *d++ = *s++; |
c35e046a | 11388 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11389 | *d++ = ':'; |
11390 | *d++ = ':'; | |
11391 | s++; | |
11392 | } | |
c35e046a | 11393 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
11394 | *d++ = *s++; |
11395 | *d++ = *s++; | |
11396 | } | |
fd400ab9 | 11397 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11398 | char *t = s + UTF8SKIP(s); |
c35e046a | 11399 | size_t len; |
fd400ab9 | 11400 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 11401 | t += UTF8SKIP(t); |
c35e046a AL |
11402 | len = t - s; |
11403 | if (d + len > e) | |
cea2e8a9 | 11404 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
11405 | Copy(s, d, len, char); |
11406 | d += len; | |
a0ed51b3 LW |
11407 | s = t; |
11408 | } | |
463ee0b2 LW |
11409 | else { |
11410 | *d = '\0'; | |
11411 | *slp = d - dest; | |
11412 | return s; | |
e929a76b | 11413 | } |
378cc40b LW |
11414 | } |
11415 | } | |
11416 | ||
76e3520e | 11417 | STATIC char * |
f54cb97a | 11418 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 11419 | { |
97aff369 | 11420 | dVAR; |
6136c704 | 11421 | char *bracket = NULL; |
748a9306 | 11422 | char funny = *s++; |
6136c704 | 11423 | register char *d = dest; |
0b3da58d | 11424 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
378cc40b | 11425 | |
7918f24d NC |
11426 | PERL_ARGS_ASSERT_SCAN_IDENT; |
11427 | ||
a0d0e21e | 11428 | if (isSPACE(*s)) |
29595ff2 | 11429 | s = PEEKSPACE(s); |
de3bb511 | 11430 | if (isDIGIT(*s)) { |
8903cb82 | 11431 | while (isDIGIT(*s)) { |
11432 | if (d >= e) | |
cea2e8a9 | 11433 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 11434 | *d++ = *s++; |
8903cb82 | 11435 | } |
378cc40b LW |
11436 | } |
11437 | else { | |
463ee0b2 | 11438 | for (;;) { |
8903cb82 | 11439 | if (d >= e) |
cea2e8a9 | 11440 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11441 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11442 | *d++ = *s++; |
7e2040f0 | 11443 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11444 | *d++ = ':'; |
11445 | *d++ = ':'; | |
11446 | s++; | |
11447 | } | |
a0d0e21e | 11448 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
11449 | *d++ = *s++; |
11450 | *d++ = *s++; | |
11451 | } | |
fd400ab9 | 11452 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11453 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 11454 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
11455 | t += UTF8SKIP(t); |
11456 | if (d + (t - s) > e) | |
cea2e8a9 | 11457 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
11458 | Copy(s, d, t - s, char); |
11459 | d += t - s; | |
11460 | s = t; | |
11461 | } | |
463ee0b2 LW |
11462 | else |
11463 | break; | |
11464 | } | |
378cc40b LW |
11465 | } |
11466 | *d = '\0'; | |
11467 | d = dest; | |
79072805 | 11468 | if (*d) { |
3280af22 NIS |
11469 | if (PL_lex_state != LEX_NORMAL) |
11470 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 11471 | return s; |
378cc40b | 11472 | } |
748a9306 | 11473 | if (*s == '$' && s[1] && |
3792a11b | 11474 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 11475 | { |
4810e5ec | 11476 | return s; |
5cd24f17 | 11477 | } |
79072805 LW |
11478 | if (*s == '{') { |
11479 | bracket = s; | |
11480 | s++; | |
11481 | } | |
11482 | else if (ck_uni) | |
11483 | check_uni(); | |
93a17b20 | 11484 | if (s < send) |
79072805 LW |
11485 | *d = *s++; |
11486 | d[1] = '\0'; | |
2b92dfce | 11487 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 11488 | *d = toCTRL(*s); |
11489 | s++; | |
de3bb511 | 11490 | } |
79072805 | 11491 | if (bracket) { |
748a9306 | 11492 | if (isSPACE(s[-1])) { |
fa83b5b6 | 11493 | while (s < send) { |
f54cb97a | 11494 | const char ch = *s++; |
bf4acbe4 | 11495 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 11496 | *d = ch; |
11497 | break; | |
11498 | } | |
11499 | } | |
748a9306 | 11500 | } |
7e2040f0 | 11501 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 11502 | d++; |
a0ed51b3 | 11503 | if (UTF) { |
6136c704 AL |
11504 | char *end = s; |
11505 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
11506 | end += UTF8SKIP(end); | |
11507 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
11508 | end += UTF8SKIP(end); | |
a0ed51b3 | 11509 | } |
6136c704 AL |
11510 | Copy(s, d, end - s, char); |
11511 | d += end - s; | |
11512 | s = end; | |
a0ed51b3 LW |
11513 | } |
11514 | else { | |
2b92dfce | 11515 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 11516 | *d++ = *s++; |
2b92dfce | 11517 | if (d >= e) |
cea2e8a9 | 11518 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 11519 | } |
79072805 | 11520 | *d = '\0'; |
c35e046a AL |
11521 | while (s < send && SPACE_OR_TAB(*s)) |
11522 | s++; | |
ff68c719 | 11523 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 11524 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
11525 | const char * const brack = |
11526 | (const char *) | |
11527 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 11528 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 11529 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
11530 | funny, dest, brack, funny, dest, brack); |
11531 | } | |
79072805 | 11532 | bracket++; |
a0be28da | 11533 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
11534 | return s; |
11535 | } | |
4e553d73 NIS |
11536 | } |
11537 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
11538 | * 1999-02-27 mjd-perl-patch@plover.com */ |
11539 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
11540 | && isALNUM(*s)) | |
11541 | { | |
11542 | d++; | |
11543 | while (isALNUM(*s) && d < e) { | |
11544 | *d++ = *s++; | |
11545 | } | |
11546 | if (d >= e) | |
cea2e8a9 | 11547 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 11548 | *d = '\0'; |
79072805 LW |
11549 | } |
11550 | if (*s == '}') { | |
11551 | s++; | |
7df0d042 | 11552 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 11553 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
11554 | PL_expect = XREF; |
11555 | } | |
d008e5eb | 11556 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 11557 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
11558 | (keyword(dest, d - dest, 0) |
11559 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 11560 | { |
c35e046a AL |
11561 | if (funny == '#') |
11562 | funny = '@'; | |
9014280d | 11563 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
11564 | "Ambiguous use of %c{%s} resolved to %c%s", |
11565 | funny, dest, funny, dest); | |
11566 | } | |
11567 | } | |
79072805 LW |
11568 | } |
11569 | else { | |
11570 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 11571 | *dest = '\0'; |
79072805 LW |
11572 | } |
11573 | } | |
3280af22 NIS |
11574 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
11575 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
11576 | return s; |
11577 | } | |
11578 | ||
879d0c72 NC |
11579 | static U32 |
11580 | S_pmflag(U32 pmfl, const char ch) { | |
11581 | switch (ch) { | |
11582 | CASE_STD_PMMOD_FLAGS_PARSE_SET(&pmfl); | |
11583 | case GLOBAL_PAT_MOD: pmfl |= PMf_GLOBAL; break; | |
11584 | case CONTINUE_PAT_MOD: pmfl |= PMf_CONTINUE; break; | |
11585 | case ONCE_PAT_MOD: pmfl |= PMf_KEEP; break; | |
11586 | case KEEPCOPY_PAT_MOD: pmfl |= PMf_KEEPCOPY; break; | |
11587 | } | |
11588 | return pmfl; | |
11589 | } | |
11590 | ||
cea2e8a9 | 11591 | void |
2b36a5a0 | 11592 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 11593 | { |
7918f24d NC |
11594 | PERL_ARGS_ASSERT_PMFLAG; |
11595 | ||
879d0c72 NC |
11596 | Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED), |
11597 | "Perl_pmflag() is deprecated, and will be removed from the XS API"); | |
11598 | ||
cde0cee5 | 11599 | if (ch<256) { |
879d0c72 | 11600 | *pmfl = S_pmflag(*pmfl, (char)ch); |
cde0cee5 | 11601 | } |
a0d0e21e | 11602 | } |
378cc40b | 11603 | |
76e3520e | 11604 | STATIC char * |
cea2e8a9 | 11605 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 11606 | { |
97aff369 | 11607 | dVAR; |
79072805 | 11608 | PMOP *pm; |
5db06880 | 11609 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 11610 | const char * const valid_flags = |
a20207d7 | 11611 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
11612 | #ifdef PERL_MAD |
11613 | char *modstart; | |
11614 | #endif | |
11615 | ||
7918f24d | 11616 | PERL_ARGS_ASSERT_SCAN_PAT; |
378cc40b | 11617 | |
25c09cbf | 11618 | if (!s) { |
6136c704 | 11619 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
11620 | Perl_croak(aTHX_ |
11621 | (const char *) | |
11622 | (*delimiter == '?' | |
11623 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
11624 | : "Search pattern not terminated" )); | |
25c09cbf | 11625 | } |
bbce6d69 | 11626 | |
8782bef2 | 11627 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
11628 | if (PL_multi_open == '?') { |
11629 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 11630 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
11631 | |
11632 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
11633 | allows us to restrict the list needed by reset to just the ?? | |
11634 | matches. */ | |
11635 | assert(type != OP_TRANS); | |
11636 | if (PL_curstash) { | |
daba3364 | 11637 | MAGIC *mg = mg_find((const SV *)PL_curstash, PERL_MAGIC_symtab); |
ad639bfb NC |
11638 | U32 elements; |
11639 | if (!mg) { | |
daba3364 | 11640 | mg = sv_magicext(MUTABLE_SV(PL_curstash), 0, PERL_MAGIC_symtab, 0, 0, |
ad639bfb NC |
11641 | 0); |
11642 | } | |
11643 | elements = mg->mg_len / sizeof(PMOP**); | |
11644 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
11645 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
11646 | mg->mg_len = elements * sizeof(PMOP**); | |
11647 | PmopSTASH_set(pm,PL_curstash); | |
11648 | } | |
11649 | } | |
5db06880 NC |
11650 | #ifdef PERL_MAD |
11651 | modstart = s; | |
11652 | #endif | |
6136c704 | 11653 | while (*s && strchr(valid_flags, *s)) |
879d0c72 | 11654 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
5db06880 NC |
11655 | #ifdef PERL_MAD |
11656 | if (PL_madskills && modstart != s) { | |
11657 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
11658 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
11659 | } | |
11660 | #endif | |
4ac733c9 | 11661 | /* issue a warning if /c is specified,but /g is not */ |
a2a5de95 | 11662 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL)) |
4ac733c9 | 11663 | { |
a2a5de95 NC |
11664 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), |
11665 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
11666 | } |
11667 | ||
3280af22 | 11668 | PL_lex_op = (OP*)pm; |
6154021b | 11669 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
11670 | return s; |
11671 | } | |
11672 | ||
76e3520e | 11673 | STATIC char * |
cea2e8a9 | 11674 | S_scan_subst(pTHX_ char *start) |
79072805 | 11675 | { |
27da23d5 | 11676 | dVAR; |
a0d0e21e | 11677 | register char *s; |
79072805 | 11678 | register PMOP *pm; |
4fdae800 | 11679 | I32 first_start; |
79072805 | 11680 | I32 es = 0; |
5db06880 NC |
11681 | #ifdef PERL_MAD |
11682 | char *modstart; | |
11683 | #endif | |
79072805 | 11684 | |
7918f24d NC |
11685 | PERL_ARGS_ASSERT_SCAN_SUBST; |
11686 | ||
6154021b | 11687 | pl_yylval.ival = OP_NULL; |
79072805 | 11688 | |
5db06880 | 11689 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11690 | |
37fd879b | 11691 | if (!s) |
cea2e8a9 | 11692 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 11693 | |
3280af22 | 11694 | if (s[-1] == PL_multi_open) |
79072805 | 11695 | s--; |
5db06880 NC |
11696 | #ifdef PERL_MAD |
11697 | if (PL_madskills) { | |
cd81e915 NC |
11698 | CURMAD('q', PL_thisopen); |
11699 | CURMAD('_', PL_thiswhite); | |
11700 | CURMAD('E', PL_thisstuff); | |
11701 | CURMAD('Q', PL_thisclose); | |
11702 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11703 | } |
11704 | #endif | |
79072805 | 11705 | |
3280af22 | 11706 | first_start = PL_multi_start; |
5db06880 | 11707 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11708 | if (!s) { |
37fd879b | 11709 | if (PL_lex_stuff) { |
3280af22 | 11710 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11711 | PL_lex_stuff = NULL; |
37fd879b | 11712 | } |
cea2e8a9 | 11713 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 11714 | } |
3280af22 | 11715 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 11716 | |
79072805 | 11717 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
11718 | |
11719 | #ifdef PERL_MAD | |
11720 | if (PL_madskills) { | |
cd81e915 NC |
11721 | CURMAD('z', PL_thisopen); |
11722 | CURMAD('R', PL_thisstuff); | |
11723 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
11724 | } |
11725 | modstart = s; | |
11726 | #endif | |
11727 | ||
48c036b1 | 11728 | while (*s) { |
a20207d7 | 11729 | if (*s == EXEC_PAT_MOD) { |
a687059c | 11730 | s++; |
2f3197b3 | 11731 | es++; |
a687059c | 11732 | } |
a20207d7 | 11733 | else if (strchr(S_PAT_MODS, *s)) |
879d0c72 | 11734 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
48c036b1 GS |
11735 | else |
11736 | break; | |
378cc40b | 11737 | } |
79072805 | 11738 | |
5db06880 NC |
11739 | #ifdef PERL_MAD |
11740 | if (PL_madskills) { | |
11741 | if (modstart != s) | |
11742 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11743 | append_madprops(PL_thismad, (OP*)pm, 0); |
11744 | PL_thismad = 0; | |
5db06880 NC |
11745 | } |
11746 | #endif | |
a2a5de95 NC |
11747 | if ((pm->op_pmflags & PMf_CONTINUE)) { |
11748 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
11749 | } |
11750 | ||
79072805 | 11751 | if (es) { |
6136c704 AL |
11752 | SV * const repl = newSVpvs(""); |
11753 | ||
0244c3a4 GS |
11754 | PL_sublex_info.super_bufptr = s; |
11755 | PL_sublex_info.super_bufend = PL_bufend; | |
11756 | PL_multi_end = 0; | |
79072805 | 11757 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
11758 | while (es-- > 0) { |
11759 | if (es) | |
11760 | sv_catpvs(repl, "eval "); | |
11761 | else | |
11762 | sv_catpvs(repl, "do "); | |
11763 | } | |
6f43d98f | 11764 | sv_catpvs(repl, "{"); |
3280af22 | 11765 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
11766 | if (strchr(SvPVX(PL_lex_repl), '#')) |
11767 | sv_catpvs(repl, "\n"); | |
11768 | sv_catpvs(repl, "}"); | |
25da4f38 | 11769 | SvEVALED_on(repl); |
3280af22 NIS |
11770 | SvREFCNT_dec(PL_lex_repl); |
11771 | PL_lex_repl = repl; | |
378cc40b | 11772 | } |
79072805 | 11773 | |
3280af22 | 11774 | PL_lex_op = (OP*)pm; |
6154021b | 11775 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
11776 | return s; |
11777 | } | |
11778 | ||
76e3520e | 11779 | STATIC char * |
cea2e8a9 | 11780 | S_scan_trans(pTHX_ char *start) |
378cc40b | 11781 | { |
97aff369 | 11782 | dVAR; |
a0d0e21e | 11783 | register char* s; |
11343788 | 11784 | OP *o; |
79072805 | 11785 | short *tbl; |
b84c11c8 NC |
11786 | U8 squash; |
11787 | U8 del; | |
11788 | U8 complement; | |
5db06880 NC |
11789 | #ifdef PERL_MAD |
11790 | char *modstart; | |
11791 | #endif | |
79072805 | 11792 | |
7918f24d NC |
11793 | PERL_ARGS_ASSERT_SCAN_TRANS; |
11794 | ||
6154021b | 11795 | pl_yylval.ival = OP_NULL; |
79072805 | 11796 | |
5db06880 | 11797 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 11798 | if (!s) |
cea2e8a9 | 11799 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11800 | |
3280af22 | 11801 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11802 | s--; |
5db06880 NC |
11803 | #ifdef PERL_MAD |
11804 | if (PL_madskills) { | |
cd81e915 NC |
11805 | CURMAD('q', PL_thisopen); |
11806 | CURMAD('_', PL_thiswhite); | |
11807 | CURMAD('E', PL_thisstuff); | |
11808 | CURMAD('Q', PL_thisclose); | |
11809 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11810 | } |
11811 | #endif | |
2f3197b3 | 11812 | |
5db06880 | 11813 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11814 | if (!s) { |
37fd879b | 11815 | if (PL_lex_stuff) { |
3280af22 | 11816 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11817 | PL_lex_stuff = NULL; |
37fd879b | 11818 | } |
cea2e8a9 | 11819 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11820 | } |
5db06880 | 11821 | if (PL_madskills) { |
cd81e915 NC |
11822 | CURMAD('z', PL_thisopen); |
11823 | CURMAD('R', PL_thisstuff); | |
11824 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11825 | } |
79072805 | 11826 | |
a0ed51b3 | 11827 | complement = del = squash = 0; |
5db06880 NC |
11828 | #ifdef PERL_MAD |
11829 | modstart = s; | |
11830 | #endif | |
7a1e2023 NC |
11831 | while (1) { |
11832 | switch (*s) { | |
11833 | case 'c': | |
79072805 | 11834 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11835 | break; |
11836 | case 'd': | |
a0ed51b3 | 11837 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11838 | break; |
11839 | case 's': | |
79072805 | 11840 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11841 | break; |
11842 | default: | |
11843 | goto no_more; | |
11844 | } | |
395c3793 LW |
11845 | s++; |
11846 | } | |
7a1e2023 | 11847 | no_more: |
8973db79 | 11848 | |
aa1f7c5b | 11849 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11850 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11851 | o->op_private &= ~OPpTRANS_ALL; |
11852 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11853 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11854 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11855 | |
3280af22 | 11856 | PL_lex_op = o; |
6154021b | 11857 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
11858 | |
11859 | #ifdef PERL_MAD | |
11860 | if (PL_madskills) { | |
11861 | if (modstart != s) | |
11862 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11863 | append_madprops(PL_thismad, o, 0); |
11864 | PL_thismad = 0; | |
5db06880 NC |
11865 | } |
11866 | #endif | |
11867 | ||
79072805 LW |
11868 | return s; |
11869 | } | |
11870 | ||
76e3520e | 11871 | STATIC char * |
cea2e8a9 | 11872 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11873 | { |
97aff369 | 11874 | dVAR; |
79072805 LW |
11875 | SV *herewas; |
11876 | I32 op_type = OP_SCALAR; | |
11877 | I32 len; | |
11878 | SV *tmpstr; | |
11879 | char term; | |
73d840c0 | 11880 | const char *found_newline; |
79072805 | 11881 | register char *d; |
fc36a67e | 11882 | register char *e; |
4633a7c4 | 11883 | char *peek; |
f54cb97a | 11884 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11885 | #ifdef PERL_MAD |
11886 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11887 | char *tstart; | |
11888 | ||
cd81e915 | 11889 | PL_realtokenstart = -1; |
5db06880 | 11890 | #endif |
79072805 | 11891 | |
7918f24d NC |
11892 | PERL_ARGS_ASSERT_SCAN_HEREDOC; |
11893 | ||
79072805 | 11894 | s += 2; |
3280af22 NIS |
11895 | d = PL_tokenbuf; |
11896 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11897 | if (!outer) |
79072805 | 11898 | *d++ = '\n'; |
c35e046a AL |
11899 | peek = s; |
11900 | while (SPACE_OR_TAB(*peek)) | |
11901 | peek++; | |
3792a11b | 11902 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11903 | s = peek; |
79072805 | 11904 | term = *s++; |
3280af22 | 11905 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11906 | d += len; |
3280af22 | 11907 | if (s < PL_bufend) |
79072805 | 11908 | s++; |
79072805 LW |
11909 | } |
11910 | else { | |
11911 | if (*s == '\\') | |
11912 | s++, term = '\''; | |
11913 | else | |
11914 | term = '"'; | |
7e2040f0 | 11915 | if (!isALNUM_lazy_if(s,UTF)) |
8ab8f082 | 11916 | deprecate("bare << to mean <<\"\""); |
7e2040f0 | 11917 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11918 | if (d < e) |
11919 | *d++ = *s; | |
11920 | } | |
11921 | } | |
3280af22 | 11922 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11923 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11924 | *d++ = '\n'; |
11925 | *d = '\0'; | |
3280af22 | 11926 | len = d - PL_tokenbuf; |
5db06880 NC |
11927 | |
11928 | #ifdef PERL_MAD | |
11929 | if (PL_madskills) { | |
11930 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11931 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11932 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11933 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11934 | stuffstart = s - SvPVX(PL_linestr); |
11935 | } | |
11936 | #endif | |
6a27c188 | 11937 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11938 | d = strchr(s, '\r'); |
11939 | if (d) { | |
b464bac0 | 11940 | char * const olds = s; |
f63a84b2 | 11941 | s = d; |
3280af22 | 11942 | while (s < PL_bufend) { |
f63a84b2 LW |
11943 | if (*s == '\r') { |
11944 | *d++ = '\n'; | |
11945 | if (*++s == '\n') | |
11946 | s++; | |
11947 | } | |
11948 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11949 | *d++ = *s++; | |
11950 | s++; | |
11951 | } | |
11952 | else | |
11953 | *d++ = *s++; | |
11954 | } | |
11955 | *d = '\0'; | |
3280af22 | 11956 | PL_bufend = d; |
95a20fc0 | 11957 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11958 | s = olds; |
11959 | } | |
11960 | #endif | |
5db06880 NC |
11961 | #ifdef PERL_MAD |
11962 | found_newline = 0; | |
11963 | #endif | |
10edeb5d | 11964 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11965 | herewas = newSVpvn(s,PL_bufend-s); |
11966 | } | |
11967 | else { | |
5db06880 NC |
11968 | #ifdef PERL_MAD |
11969 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11970 | #else | |
73d840c0 AL |
11971 | s--; |
11972 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11973 | #endif |
73d840c0 | 11974 | } |
5db06880 NC |
11975 | #ifdef PERL_MAD |
11976 | if (PL_madskills) { | |
11977 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11978 | if (PL_thisstuff) |
11979 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11980 | else |
cd81e915 | 11981 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11982 | } |
11983 | #endif | |
79072805 | 11984 | s += SvCUR(herewas); |
748a9306 | 11985 | |
5db06880 NC |
11986 | #ifdef PERL_MAD |
11987 | stuffstart = s - SvPVX(PL_linestr); | |
11988 | ||
11989 | if (found_newline) | |
11990 | s--; | |
11991 | #endif | |
11992 | ||
7d0a29fe NC |
11993 | tmpstr = newSV_type(SVt_PVIV); |
11994 | SvGROW(tmpstr, 80); | |
748a9306 | 11995 | if (term == '\'') { |
79072805 | 11996 | op_type = OP_CONST; |
45977657 | 11997 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11998 | } |
11999 | else if (term == '`') { | |
79072805 | 12000 | op_type = OP_BACKTICK; |
45977657 | 12001 | SvIV_set(tmpstr, '\\'); |
748a9306 | 12002 | } |
79072805 LW |
12003 | |
12004 | CLINE; | |
57843af0 | 12005 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
12006 | PL_multi_open = PL_multi_close = '<'; |
12007 | term = *PL_tokenbuf; | |
0244c3a4 | 12008 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
12009 | char * const bufptr = PL_sublex_info.super_bufptr; |
12010 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 12011 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
12012 | s = strchr(bufptr, '\n'); |
12013 | if (!s) | |
12014 | s = bufend; | |
12015 | d = s; | |
12016 | while (s < bufend && | |
12017 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
12018 | if (*s++ == '\n') | |
57843af0 | 12019 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
12020 | } |
12021 | if (s >= bufend) { | |
eb160463 | 12022 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
12023 | missingterm(PL_tokenbuf); |
12024 | } | |
12025 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
12026 | sv_setpvn(tmpstr,d+1,s-d); | |
12027 | s += len - 1; | |
12028 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 12029 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
12030 | |
12031 | s = olds; | |
12032 | goto retval; | |
12033 | } | |
12034 | else if (!outer) { | |
79072805 | 12035 | d = s; |
3280af22 NIS |
12036 | while (s < PL_bufend && |
12037 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 12038 | if (*s++ == '\n') |
57843af0 | 12039 | CopLINE_inc(PL_curcop); |
79072805 | 12040 | } |
3280af22 | 12041 | if (s >= PL_bufend) { |
eb160463 | 12042 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12043 | missingterm(PL_tokenbuf); |
79072805 LW |
12044 | } |
12045 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
12046 | #ifdef PERL_MAD |
12047 | if (PL_madskills) { | |
cd81e915 NC |
12048 | if (PL_thisstuff) |
12049 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 12050 | else |
cd81e915 | 12051 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
12052 | stuffstart = s - SvPVX(PL_linestr); |
12053 | } | |
12054 | #endif | |
79072805 | 12055 | s += len - 1; |
57843af0 | 12056 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 12057 | |
3280af22 NIS |
12058 | sv_catpvn(herewas,s,PL_bufend-s); |
12059 | sv_setsv(PL_linestr,herewas); | |
12060 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
12061 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 12062 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
12063 | } |
12064 | else | |
76f68e9b | 12065 | sv_setpvs(tmpstr,""); /* avoid "uninitialized" warning */ |
3280af22 | 12066 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
12067 | #ifdef PERL_MAD |
12068 | if (PL_madskills) { | |
12069 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12070 | if (PL_thisstuff) |
12071 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12072 | else |
cd81e915 | 12073 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12074 | } |
12075 | #endif | |
f0e67a1d | 12076 | PL_bufptr = s; |
17cc9359 | 12077 | CopLINE_inc(PL_curcop); |
f0e67a1d | 12078 | if (!outer || !lex_next_chunk(0)) { |
eb160463 | 12079 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12080 | missingterm(PL_tokenbuf); |
79072805 | 12081 | } |
17cc9359 | 12082 | CopLINE_dec(PL_curcop); |
f0e67a1d | 12083 | s = PL_bufptr; |
5db06880 NC |
12084 | #ifdef PERL_MAD |
12085 | stuffstart = s - SvPVX(PL_linestr); | |
12086 | #endif | |
57843af0 | 12087 | CopLINE_inc(PL_curcop); |
3280af22 | 12088 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 12089 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 12090 | #ifndef PERL_STRICT_CR |
3280af22 | 12091 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
12092 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
12093 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 12094 | { |
3280af22 NIS |
12095 | PL_bufend[-2] = '\n'; |
12096 | PL_bufend--; | |
95a20fc0 | 12097 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 12098 | } |
3280af22 NIS |
12099 | else if (PL_bufend[-1] == '\r') |
12100 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12101 | } |
3280af22 NIS |
12102 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
12103 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12104 | #endif |
3280af22 | 12105 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 12106 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 12107 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
12108 | sv_catsv(PL_linestr,herewas); |
12109 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 12110 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
12111 | } |
12112 | else { | |
3280af22 NIS |
12113 | s = PL_bufend; |
12114 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
12115 | } |
12116 | } | |
79072805 | 12117 | s++; |
0244c3a4 | 12118 | retval: |
57843af0 | 12119 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 12120 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 12121 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 12122 | } |
8990e307 | 12123 | SvREFCNT_dec(herewas); |
2f31ce75 | 12124 | if (!IN_BYTES) { |
95a20fc0 | 12125 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
12126 | SvUTF8_on(tmpstr); |
12127 | else if (PL_encoding) | |
12128 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
12129 | } | |
3280af22 | 12130 | PL_lex_stuff = tmpstr; |
6154021b | 12131 | pl_yylval.ival = op_type; |
79072805 LW |
12132 | return s; |
12133 | } | |
12134 | ||
02aa26ce NT |
12135 | /* scan_inputsymbol |
12136 | takes: current position in input buffer | |
12137 | returns: new position in input buffer | |
6154021b | 12138 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
12139 | |
12140 | This code handles: | |
12141 | ||
12142 | <> read from ARGV | |
12143 | <FH> read from filehandle | |
12144 | <pkg::FH> read from package qualified filehandle | |
12145 | <pkg'FH> read from package qualified filehandle | |
12146 | <$fh> read from filehandle in $fh | |
12147 | <*.h> filename glob | |
12148 | ||
12149 | */ | |
12150 | ||
76e3520e | 12151 | STATIC char * |
cea2e8a9 | 12152 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 12153 | { |
97aff369 | 12154 | dVAR; |
02aa26ce | 12155 | register char *s = start; /* current position in buffer */ |
1b420867 | 12156 | char *end; |
79072805 | 12157 | I32 len; |
6136c704 AL |
12158 | char *d = PL_tokenbuf; /* start of temp holding space */ |
12159 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
12160 | ||
7918f24d NC |
12161 | PERL_ARGS_ASSERT_SCAN_INPUTSYMBOL; |
12162 | ||
1b420867 GS |
12163 | end = strchr(s, '\n'); |
12164 | if (!end) | |
12165 | end = PL_bufend; | |
12166 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
12167 | |
12168 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 12169 | or if it didn't end, or if we see a newline |
02aa26ce NT |
12170 | */ |
12171 | ||
bb7a0f54 | 12172 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 12173 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 12174 | if (s >= end) |
cea2e8a9 | 12175 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 12176 | |
fc36a67e | 12177 | s++; |
02aa26ce NT |
12178 | |
12179 | /* check for <$fh> | |
12180 | Remember, only scalar variables are interpreted as filehandles by | |
12181 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
12182 | treated as a glob() call. | |
12183 | This code makes use of the fact that except for the $ at the front, | |
12184 | a scalar variable and a filehandle look the same. | |
12185 | */ | |
4633a7c4 | 12186 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
12187 | |
12188 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 12189 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 12190 | d++; |
02aa26ce NT |
12191 | |
12192 | /* If we've tried to read what we allow filehandles to look like, and | |
12193 | there's still text left, then it must be a glob() and not a getline. | |
12194 | Use scan_str to pull out the stuff between the <> and treat it | |
12195 | as nothing more than a string. | |
12196 | */ | |
12197 | ||
3280af22 | 12198 | if (d - PL_tokenbuf != len) { |
6154021b | 12199 | pl_yylval.ival = OP_GLOB; |
5db06880 | 12200 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 12201 | if (!s) |
cea2e8a9 | 12202 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
12203 | return s; |
12204 | } | |
395c3793 | 12205 | else { |
9b3023bc | 12206 | bool readline_overriden = FALSE; |
6136c704 | 12207 | GV *gv_readline; |
9b3023bc | 12208 | GV **gvp; |
02aa26ce | 12209 | /* we're in a filehandle read situation */ |
3280af22 | 12210 | d = PL_tokenbuf; |
02aa26ce NT |
12211 | |
12212 | /* turn <> into <ARGV> */ | |
79072805 | 12213 | if (!len) |
689badd5 | 12214 | Copy("ARGV",d,5,char); |
02aa26ce | 12215 | |
9b3023bc | 12216 | /* Check whether readline() is overriden */ |
fafc274c | 12217 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 12218 | if ((gv_readline |
ba979b31 | 12219 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 12220 | || |
017a3ce5 | 12221 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 12222 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 12223 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
12224 | readline_overriden = TRUE; |
12225 | ||
02aa26ce NT |
12226 | /* if <$fh>, create the ops to turn the variable into a |
12227 | filehandle | |
12228 | */ | |
79072805 | 12229 | if (*d == '$') { |
02aa26ce NT |
12230 | /* try to find it in the pad for this block, otherwise find |
12231 | add symbol table ops | |
12232 | */ | |
f8f98e0a | 12233 | const PADOFFSET tmp = pad_findmy(d, len, 0); |
bbd11bfc | 12234 | if (tmp != NOT_IN_PAD) { |
00b1698f | 12235 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
12236 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
12237 | HEK * const stashname = HvNAME_HEK(stash); | |
12238 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 12239 | sv_catpvs(sym, "::"); |
f558d5af JH |
12240 | sv_catpv(sym, d+1); |
12241 | d = SvPVX(sym); | |
12242 | goto intro_sym; | |
12243 | } | |
12244 | else { | |
6136c704 | 12245 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 12246 | o->op_targ = tmp; |
9b3023bc RGS |
12247 | PL_lex_op = readline_overriden |
12248 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12249 | append_elem(OP_LIST, o, | |
12250 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
12251 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 12252 | } |
a0d0e21e LW |
12253 | } |
12254 | else { | |
f558d5af JH |
12255 | GV *gv; |
12256 | ++d; | |
12257 | intro_sym: | |
12258 | gv = gv_fetchpv(d, | |
12259 | (PL_in_eval | |
12260 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 12261 | : GV_ADDMULTI), |
f558d5af | 12262 | SVt_PV); |
9b3023bc RGS |
12263 | PL_lex_op = readline_overriden |
12264 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12265 | append_elem(OP_LIST, | |
12266 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
12267 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12268 | : (OP*)newUNOP(OP_READLINE, 0, | |
12269 | newUNOP(OP_RV2SV, 0, | |
12270 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 12271 | } |
7c6fadd6 RGS |
12272 | if (!readline_overriden) |
12273 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
12274 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
12275 | pl_yylval.ival = OP_NULL; | |
79072805 | 12276 | } |
02aa26ce NT |
12277 | |
12278 | /* If it's none of the above, it must be a literal filehandle | |
12279 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 12280 | else { |
6136c704 | 12281 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
12282 | PL_lex_op = readline_overriden |
12283 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12284 | append_elem(OP_LIST, | |
12285 | newGVOP(OP_GV, 0, gv), | |
12286 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12287 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 12288 | pl_yylval.ival = OP_NULL; |
79072805 LW |
12289 | } |
12290 | } | |
02aa26ce | 12291 | |
79072805 LW |
12292 | return s; |
12293 | } | |
12294 | ||
02aa26ce NT |
12295 | |
12296 | /* scan_str | |
12297 | takes: start position in buffer | |
09bef843 SB |
12298 | keep_quoted preserve \ on the embedded delimiter(s) |
12299 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
12300 | returns: position to continue reading from buffer |
12301 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
12302 | updates the read buffer. | |
12303 | ||
12304 | This subroutine pulls a string out of the input. It is called for: | |
12305 | q single quotes q(literal text) | |
12306 | ' single quotes 'literal text' | |
12307 | qq double quotes qq(interpolate $here please) | |
12308 | " double quotes "interpolate $here please" | |
12309 | qx backticks qx(/bin/ls -l) | |
12310 | ` backticks `/bin/ls -l` | |
12311 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
12312 | m// regexp match m/this/ | |
12313 | s/// regexp substitute s/this/that/ | |
12314 | tr/// string transliterate tr/this/that/ | |
12315 | y/// string transliterate y/this/that/ | |
12316 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 12317 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
12318 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
12319 | ||
12320 | In most of these cases (all but <>, patterns and transliterate) | |
12321 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
12322 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
12323 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
12324 | calls scan_str(). | |
4e553d73 | 12325 | |
02aa26ce NT |
12326 | It skips whitespace before the string starts, and treats the first |
12327 | character as the delimiter. If the delimiter is one of ([{< then | |
12328 | the corresponding "close" character )]}> is used as the closing | |
12329 | delimiter. It allows quoting of delimiters, and if the string has | |
12330 | balanced delimiters ([{<>}]) it allows nesting. | |
12331 | ||
37fd879b HS |
12332 | On success, the SV with the resulting string is put into lex_stuff or, |
12333 | if that is already non-NULL, into lex_repl. The second case occurs only | |
12334 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
12335 | For convenience, the terminating delimiter character is stuffed into | |
12336 | SvIVX of the SV. | |
02aa26ce NT |
12337 | */ |
12338 | ||
76e3520e | 12339 | STATIC char * |
09bef843 | 12340 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 12341 | { |
97aff369 | 12342 | dVAR; |
02aa26ce | 12343 | SV *sv; /* scalar value: string */ |
d3fcec1f | 12344 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
12345 | register char *s = start; /* current position in the buffer */ |
12346 | register char term; /* terminating character */ | |
12347 | register char *to; /* current position in the sv's data */ | |
12348 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 12349 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 12350 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 12351 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 12352 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 12353 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
12354 | #ifdef PERL_MAD |
12355 | int stuffstart; | |
12356 | char *tstart; | |
12357 | #endif | |
02aa26ce | 12358 | |
7918f24d NC |
12359 | PERL_ARGS_ASSERT_SCAN_STR; |
12360 | ||
02aa26ce | 12361 | /* skip space before the delimiter */ |
29595ff2 NC |
12362 | if (isSPACE(*s)) { |
12363 | s = PEEKSPACE(s); | |
12364 | } | |
02aa26ce | 12365 | |
5db06880 | 12366 | #ifdef PERL_MAD |
cd81e915 NC |
12367 | if (PL_realtokenstart >= 0) { |
12368 | stuffstart = PL_realtokenstart; | |
12369 | PL_realtokenstart = -1; | |
5db06880 NC |
12370 | } |
12371 | else | |
12372 | stuffstart = start - SvPVX(PL_linestr); | |
12373 | #endif | |
02aa26ce | 12374 | /* mark where we are, in case we need to report errors */ |
79072805 | 12375 | CLINE; |
02aa26ce NT |
12376 | |
12377 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 12378 | term = *s; |
220e2d4e IH |
12379 | if (!UTF) { |
12380 | termcode = termstr[0] = term; | |
12381 | termlen = 1; | |
12382 | } | |
12383 | else { | |
f3b9ce0f | 12384 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
12385 | Copy(s, termstr, termlen, U8); |
12386 | if (!UTF8_IS_INVARIANT(term)) | |
12387 | has_utf8 = TRUE; | |
12388 | } | |
b1c7b182 | 12389 | |
02aa26ce | 12390 | /* mark where we are */ |
57843af0 | 12391 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 12392 | PL_multi_open = term; |
02aa26ce NT |
12393 | |
12394 | /* find corresponding closing delimiter */ | |
93a17b20 | 12395 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
12396 | termcode = termstr[0] = term = tmps[5]; |
12397 | ||
3280af22 | 12398 | PL_multi_close = term; |
79072805 | 12399 | |
561b68a9 SH |
12400 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
12401 | What a random number. */ | |
7d0a29fe NC |
12402 | sv = newSV_type(SVt_PVIV); |
12403 | SvGROW(sv, 80); | |
45977657 | 12404 | SvIV_set(sv, termcode); |
a0d0e21e | 12405 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
12406 | |
12407 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 12408 | if (keep_delims) |
220e2d4e IH |
12409 | sv_catpvn(sv, s, termlen); |
12410 | s += termlen; | |
5db06880 NC |
12411 | #ifdef PERL_MAD |
12412 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12413 | if (!PL_thisopen && !keep_delims) { |
12414 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
12415 | stuffstart = s - SvPVX(PL_linestr); |
12416 | } | |
12417 | #endif | |
93a17b20 | 12418 | for (;;) { |
220e2d4e IH |
12419 | if (PL_encoding && !UTF) { |
12420 | bool cont = TRUE; | |
12421 | ||
12422 | while (cont) { | |
95a20fc0 | 12423 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 12424 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 12425 | &offset, (char*)termstr, termlen); |
6136c704 AL |
12426 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
12427 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
12428 | |
12429 | for (; s < ns; s++) { | |
12430 | if (*s == '\n' && !PL_rsfp) | |
12431 | CopLINE_inc(PL_curcop); | |
12432 | } | |
12433 | if (!found) | |
12434 | goto read_more_line; | |
12435 | else { | |
12436 | /* handle quoted delimiters */ | |
52327caf | 12437 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 12438 | const char *t; |
95a20fc0 | 12439 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
12440 | t--; |
12441 | if ((svlast-1 - t) % 2) { | |
12442 | if (!keep_quoted) { | |
12443 | *(svlast-1) = term; | |
12444 | *svlast = '\0'; | |
12445 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12446 | } | |
12447 | continue; | |
12448 | } | |
12449 | } | |
12450 | if (PL_multi_open == PL_multi_close) { | |
12451 | cont = FALSE; | |
12452 | } | |
12453 | else { | |
f54cb97a AL |
12454 | const char *t; |
12455 | char *w; | |
0331ef07 | 12456 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
12457 | /* At here, all closes are "was quoted" one, |
12458 | so we don't check PL_multi_close. */ | |
12459 | if (*t == '\\') { | |
12460 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
12461 | t++; | |
12462 | else | |
12463 | *w++ = *t++; | |
12464 | } | |
12465 | else if (*t == PL_multi_open) | |
12466 | brackets++; | |
12467 | ||
12468 | *w = *t; | |
12469 | } | |
12470 | if (w < t) { | |
12471 | *w++ = term; | |
12472 | *w = '\0'; | |
95a20fc0 | 12473 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 12474 | } |
0331ef07 | 12475 | last_off = w - SvPVX(sv); |
220e2d4e IH |
12476 | if (--brackets <= 0) |
12477 | cont = FALSE; | |
12478 | } | |
12479 | } | |
12480 | } | |
12481 | if (!keep_delims) { | |
12482 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12483 | *SvEND(sv) = '\0'; | |
12484 | } | |
12485 | break; | |
12486 | } | |
12487 | ||
02aa26ce | 12488 | /* extend sv if need be */ |
3280af22 | 12489 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 12490 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 12491 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 12492 | |
02aa26ce | 12493 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
12494 | if (PL_multi_open == PL_multi_close) { |
12495 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 12496 | /* embedded newlines increment the current line number */ |
3280af22 | 12497 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12498 | CopLINE_inc(PL_curcop); |
02aa26ce | 12499 | /* handle quoted delimiters */ |
3280af22 | 12500 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 12501 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 12502 | s++; |
02aa26ce | 12503 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
12504 | else |
12505 | *to++ = *s++; | |
12506 | } | |
02aa26ce NT |
12507 | /* terminate when run out of buffer (the for() condition), or |
12508 | have found the terminator */ | |
220e2d4e IH |
12509 | else if (*s == term) { |
12510 | if (termlen == 1) | |
12511 | break; | |
f3b9ce0f | 12512 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
12513 | break; |
12514 | } | |
63cd0674 | 12515 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12516 | has_utf8 = TRUE; |
93a17b20 LW |
12517 | *to = *s; |
12518 | } | |
12519 | } | |
02aa26ce NT |
12520 | |
12521 | /* if the terminator isn't the same as the start character (e.g., | |
12522 | matched brackets), we have to allow more in the quoting, and | |
12523 | be prepared for nested brackets. | |
12524 | */ | |
93a17b20 | 12525 | else { |
02aa26ce | 12526 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 12527 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 12528 | /* embedded newlines increment the line count */ |
3280af22 | 12529 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12530 | CopLINE_inc(PL_curcop); |
02aa26ce | 12531 | /* backslashes can escape the open or closing characters */ |
3280af22 | 12532 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
12533 | if (!keep_quoted && |
12534 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
12535 | s++; |
12536 | else | |
12537 | *to++ = *s++; | |
12538 | } | |
02aa26ce | 12539 | /* allow nested opens and closes */ |
3280af22 | 12540 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 12541 | break; |
3280af22 | 12542 | else if (*s == PL_multi_open) |
93a17b20 | 12543 | brackets++; |
63cd0674 | 12544 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12545 | has_utf8 = TRUE; |
93a17b20 LW |
12546 | *to = *s; |
12547 | } | |
12548 | } | |
02aa26ce | 12549 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 12550 | *to = '\0'; |
95a20fc0 | 12551 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 12552 | |
02aa26ce NT |
12553 | /* |
12554 | * this next chunk reads more into the buffer if we're not done yet | |
12555 | */ | |
12556 | ||
b1c7b182 GS |
12557 | if (s < PL_bufend) |
12558 | break; /* handle case where we are done yet :-) */ | |
79072805 | 12559 | |
6a27c188 | 12560 | #ifndef PERL_STRICT_CR |
95a20fc0 | 12561 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
12562 | if ((to[-2] == '\r' && to[-1] == '\n') || |
12563 | (to[-2] == '\n' && to[-1] == '\r')) | |
12564 | { | |
f63a84b2 LW |
12565 | to[-2] = '\n'; |
12566 | to--; | |
95a20fc0 | 12567 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
12568 | } |
12569 | else if (to[-1] == '\r') | |
12570 | to[-1] = '\n'; | |
12571 | } | |
95a20fc0 | 12572 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
12573 | to[-1] = '\n'; |
12574 | #endif | |
12575 | ||
220e2d4e | 12576 | read_more_line: |
02aa26ce NT |
12577 | /* if we're out of file, or a read fails, bail and reset the current |
12578 | line marker so we can report where the unterminated string began | |
12579 | */ | |
5db06880 NC |
12580 | #ifdef PERL_MAD |
12581 | if (PL_madskills) { | |
c35e046a | 12582 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
12583 | if (PL_thisstuff) |
12584 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12585 | else |
cd81e915 | 12586 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12587 | } |
12588 | #endif | |
f0e67a1d Z |
12589 | CopLINE_inc(PL_curcop); |
12590 | PL_bufptr = PL_bufend; | |
12591 | if (!lex_next_chunk(0)) { | |
c07a80fd | 12592 | sv_free(sv); |
eb160463 | 12593 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 12594 | return NULL; |
79072805 | 12595 | } |
f0e67a1d | 12596 | s = PL_bufptr; |
5db06880 NC |
12597 | #ifdef PERL_MAD |
12598 | stuffstart = 0; | |
12599 | #endif | |
378cc40b | 12600 | } |
4e553d73 | 12601 | |
02aa26ce NT |
12602 | /* at this point, we have successfully read the delimited string */ |
12603 | ||
220e2d4e | 12604 | if (!PL_encoding || UTF) { |
5db06880 NC |
12605 | #ifdef PERL_MAD |
12606 | if (PL_madskills) { | |
c35e046a | 12607 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 12608 | const int len = s - tstart; |
cd81e915 | 12609 | if (PL_thisstuff) |
c35e046a | 12610 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12611 | else |
c35e046a | 12612 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12613 | if (!PL_thisclose && !keep_delims) |
12614 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
12615 | } |
12616 | #endif | |
12617 | ||
220e2d4e IH |
12618 | if (keep_delims) |
12619 | sv_catpvn(sv, s, termlen); | |
12620 | s += termlen; | |
12621 | } | |
5db06880 NC |
12622 | #ifdef PERL_MAD |
12623 | else { | |
12624 | if (PL_madskills) { | |
c35e046a AL |
12625 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
12626 | const int len = s - tstart - termlen; | |
cd81e915 | 12627 | if (PL_thisstuff) |
c35e046a | 12628 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12629 | else |
c35e046a | 12630 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12631 | if (!PL_thisclose && !keep_delims) |
12632 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
12633 | } |
12634 | } | |
12635 | #endif | |
220e2d4e | 12636 | if (has_utf8 || PL_encoding) |
b1c7b182 | 12637 | SvUTF8_on(sv); |
d0063567 | 12638 | |
57843af0 | 12639 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
12640 | |
12641 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
12642 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
12643 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 12644 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 12645 | } |
02aa26ce NT |
12646 | |
12647 | /* decide whether this is the first or second quoted string we've read | |
12648 | for this op | |
12649 | */ | |
4e553d73 | 12650 | |
3280af22 NIS |
12651 | if (PL_lex_stuff) |
12652 | PL_lex_repl = sv; | |
79072805 | 12653 | else |
3280af22 | 12654 | PL_lex_stuff = sv; |
378cc40b LW |
12655 | return s; |
12656 | } | |
12657 | ||
02aa26ce NT |
12658 | /* |
12659 | scan_num | |
12660 | takes: pointer to position in buffer | |
12661 | returns: pointer to new position in buffer | |
6154021b | 12662 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
12663 | |
12664 | Read a number in any of the formats that Perl accepts: | |
12665 | ||
7fd134d9 JH |
12666 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
12667 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
12668 | 0b[01](_?[01])* |
12669 | 0[0-7](_?[0-7])* | |
12670 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 12671 | |
3280af22 | 12672 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
12673 | thing it reads. |
12674 | ||
12675 | If it reads a number without a decimal point or an exponent, it will | |
12676 | try converting the number to an integer and see if it can do so | |
12677 | without loss of precision. | |
12678 | */ | |
4e553d73 | 12679 | |
378cc40b | 12680 | char * |
bfed75c6 | 12681 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 12682 | { |
97aff369 | 12683 | dVAR; |
bfed75c6 | 12684 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
12685 | register char *d; /* destination in temp buffer */ |
12686 | register char *e; /* end of temp buffer */ | |
86554af2 | 12687 | NV nv; /* number read, as a double */ |
a0714e2c | 12688 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 12689 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 12690 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 12691 | static char const number_too_long[] = "Number too long"; |
378cc40b | 12692 | |
7918f24d NC |
12693 | PERL_ARGS_ASSERT_SCAN_NUM; |
12694 | ||
02aa26ce NT |
12695 | /* We use the first character to decide what type of number this is */ |
12696 | ||
378cc40b | 12697 | switch (*s) { |
79072805 | 12698 | default: |
cea2e8a9 | 12699 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 12700 | |
02aa26ce | 12701 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 12702 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
12703 | case '0': |
12704 | { | |
02aa26ce NT |
12705 | /* variables: |
12706 | u holds the "number so far" | |
4f19785b WSI |
12707 | shift the power of 2 of the base |
12708 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
12709 | overflowed was the number more than we can hold? |
12710 | ||
12711 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
12712 | we in octal/hex/binary?" indicator to disallow hex characters |
12713 | when in octal mode. | |
02aa26ce | 12714 | */ |
9e24b6e2 JH |
12715 | NV n = 0.0; |
12716 | UV u = 0; | |
79072805 | 12717 | I32 shift; |
9e24b6e2 | 12718 | bool overflowed = FALSE; |
61f33854 | 12719 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
12720 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
12721 | static const char* const bases[5] = | |
12722 | { "", "binary", "", "octal", "hexadecimal" }; | |
12723 | static const char* const Bases[5] = | |
12724 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
12725 | static const char* const maxima[5] = | |
12726 | { "", | |
12727 | "0b11111111111111111111111111111111", | |
12728 | "", | |
12729 | "037777777777", | |
12730 | "0xffffffff" }; | |
bfed75c6 | 12731 | const char *base, *Base, *max; |
378cc40b | 12732 | |
02aa26ce | 12733 | /* check for hex */ |
378cc40b LW |
12734 | if (s[1] == 'x') { |
12735 | shift = 4; | |
12736 | s += 2; | |
61f33854 | 12737 | just_zero = FALSE; |
4f19785b WSI |
12738 | } else if (s[1] == 'b') { |
12739 | shift = 1; | |
12740 | s += 2; | |
61f33854 | 12741 | just_zero = FALSE; |
378cc40b | 12742 | } |
02aa26ce | 12743 | /* check for a decimal in disguise */ |
b78218b7 | 12744 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 12745 | goto decimal; |
02aa26ce | 12746 | /* so it must be octal */ |
928753ea | 12747 | else { |
378cc40b | 12748 | shift = 3; |
928753ea JH |
12749 | s++; |
12750 | } | |
12751 | ||
12752 | if (*s == '_') { | |
a2a5de95 | 12753 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12754 | "Misplaced _ in number"); |
12755 | lastub = s++; | |
12756 | } | |
9e24b6e2 JH |
12757 | |
12758 | base = bases[shift]; | |
12759 | Base = Bases[shift]; | |
12760 | max = maxima[shift]; | |
02aa26ce | 12761 | |
4f19785b | 12762 | /* read the rest of the number */ |
378cc40b | 12763 | for (;;) { |
9e24b6e2 | 12764 | /* x is used in the overflow test, |
893fe2c2 | 12765 | b is the digit we're adding on. */ |
9e24b6e2 | 12766 | UV x, b; |
55497cff | 12767 | |
378cc40b | 12768 | switch (*s) { |
02aa26ce NT |
12769 | |
12770 | /* if we don't mention it, we're done */ | |
378cc40b LW |
12771 | default: |
12772 | goto out; | |
02aa26ce | 12773 | |
928753ea | 12774 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 12775 | case '_': |
a2a5de95 NC |
12776 | if (lastub && s == lastub + 1) |
12777 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12778 | "Misplaced _ in number"); | |
928753ea | 12779 | lastub = s++; |
de3bb511 | 12780 | break; |
02aa26ce NT |
12781 | |
12782 | /* 8 and 9 are not octal */ | |
378cc40b | 12783 | case '8': case '9': |
4f19785b | 12784 | if (shift == 3) |
cea2e8a9 | 12785 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 12786 | /* FALL THROUGH */ |
02aa26ce NT |
12787 | |
12788 | /* octal digits */ | |
4f19785b | 12789 | case '2': case '3': case '4': |
378cc40b | 12790 | case '5': case '6': case '7': |
4f19785b | 12791 | if (shift == 1) |
cea2e8a9 | 12792 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
12793 | /* FALL THROUGH */ |
12794 | ||
12795 | case '0': case '1': | |
02aa26ce | 12796 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 12797 | goto digit; |
02aa26ce NT |
12798 | |
12799 | /* hex digits */ | |
378cc40b LW |
12800 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12801 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12802 | /* make sure they said 0x */ |
378cc40b LW |
12803 | if (shift != 4) |
12804 | goto out; | |
55497cff | 12805 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12806 | |
12807 | /* Prepare to put the digit we have onto the end | |
12808 | of the number so far. We check for overflows. | |
12809 | */ | |
12810 | ||
55497cff | 12811 | digit: |
61f33854 | 12812 | just_zero = FALSE; |
9e24b6e2 JH |
12813 | if (!overflowed) { |
12814 | x = u << shift; /* make room for the digit */ | |
12815 | ||
12816 | if ((x >> shift) != u | |
12817 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12818 | overflowed = TRUE; |
12819 | n = (NV) u; | |
9b387841 NC |
12820 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), |
12821 | "Integer overflow in %s number", | |
12822 | base); | |
9e24b6e2 JH |
12823 | } else |
12824 | u = x | b; /* add the digit to the end */ | |
12825 | } | |
12826 | if (overflowed) { | |
12827 | n *= nvshift[shift]; | |
12828 | /* If an NV has not enough bits in its | |
12829 | * mantissa to represent an UV this summing of | |
12830 | * small low-order numbers is a waste of time | |
12831 | * (because the NV cannot preserve the | |
12832 | * low-order bits anyway): we could just | |
12833 | * remember when did we overflow and in the | |
12834 | * end just multiply n by the right | |
12835 | * amount. */ | |
12836 | n += (NV) b; | |
55497cff | 12837 | } |
378cc40b LW |
12838 | break; |
12839 | } | |
12840 | } | |
02aa26ce NT |
12841 | |
12842 | /* if we get here, we had success: make a scalar value from | |
12843 | the number. | |
12844 | */ | |
378cc40b | 12845 | out: |
928753ea JH |
12846 | |
12847 | /* final misplaced underbar check */ | |
12848 | if (s[-1] == '_') { | |
a2a5de95 | 12849 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12850 | } |
12851 | ||
561b68a9 | 12852 | sv = newSV(0); |
9e24b6e2 | 12853 | if (overflowed) { |
a2a5de95 NC |
12854 | if (n > 4294967295.0) |
12855 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
12856 | "%s number > %s non-portable", | |
12857 | Base, max); | |
9e24b6e2 JH |
12858 | sv_setnv(sv, n); |
12859 | } | |
12860 | else { | |
15041a67 | 12861 | #if UVSIZE > 4 |
a2a5de95 NC |
12862 | if (u > 0xffffffff) |
12863 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
12864 | "%s number > %s non-portable", | |
12865 | Base, max); | |
2cc4c2dc | 12866 | #endif |
9e24b6e2 JH |
12867 | sv_setuv(sv, u); |
12868 | } | |
61f33854 | 12869 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12870 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 12871 | sv, NULL, NULL, 0); |
61f33854 | 12872 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 12873 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
12874 | } |
12875 | break; | |
02aa26ce NT |
12876 | |
12877 | /* | |
12878 | handle decimal numbers. | |
12879 | we're also sent here when we read a 0 as the first digit | |
12880 | */ | |
378cc40b LW |
12881 | case '1': case '2': case '3': case '4': case '5': |
12882 | case '6': case '7': case '8': case '9': case '.': | |
12883 | decimal: | |
3280af22 NIS |
12884 | d = PL_tokenbuf; |
12885 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12886 | floatit = FALSE; |
02aa26ce NT |
12887 | |
12888 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12889 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12890 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12891 | if -w is on |
12892 | */ | |
93a17b20 | 12893 | if (*s == '_') { |
a2a5de95 NC |
12894 | if (lastub && s == lastub + 1) |
12895 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12896 | "Misplaced _ in number"); | |
928753ea | 12897 | lastub = s++; |
93a17b20 | 12898 | } |
fc36a67e | 12899 | else { |
02aa26ce | 12900 | /* check for end of fixed-length buffer */ |
fc36a67e | 12901 | if (d >= e) |
cea2e8a9 | 12902 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12903 | /* if we're ok, copy the character */ |
378cc40b | 12904 | *d++ = *s++; |
fc36a67e | 12905 | } |
378cc40b | 12906 | } |
02aa26ce NT |
12907 | |
12908 | /* final misplaced underbar check */ | |
928753ea | 12909 | if (lastub && s == lastub + 1) { |
a2a5de95 | 12910 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12911 | } |
02aa26ce NT |
12912 | |
12913 | /* read a decimal portion if there is one. avoid | |
12914 | 3..5 being interpreted as the number 3. followed | |
12915 | by .5 | |
12916 | */ | |
2f3197b3 | 12917 | if (*s == '.' && s[1] != '.') { |
79072805 | 12918 | floatit = TRUE; |
378cc40b | 12919 | *d++ = *s++; |
02aa26ce | 12920 | |
928753ea | 12921 | if (*s == '_') { |
a2a5de95 NC |
12922 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12923 | "Misplaced _ in number"); | |
928753ea JH |
12924 | lastub = s; |
12925 | } | |
12926 | ||
12927 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12928 | */ |
fc36a67e | 12929 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12930 | /* fixed length buffer check */ |
fc36a67e | 12931 | if (d >= e) |
cea2e8a9 | 12932 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12933 | if (*s == '_') { |
a2a5de95 NC |
12934 | if (lastub && s == lastub + 1) |
12935 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12936 | "Misplaced _ in number"); | |
928753ea JH |
12937 | lastub = s; |
12938 | } | |
12939 | else | |
fc36a67e | 12940 | *d++ = *s; |
378cc40b | 12941 | } |
928753ea JH |
12942 | /* fractional part ending in underbar? */ |
12943 | if (s[-1] == '_') { | |
a2a5de95 NC |
12944 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12945 | "Misplaced _ in number"); | |
928753ea | 12946 | } |
dd629d5b GS |
12947 | if (*s == '.' && isDIGIT(s[1])) { |
12948 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12949 | s = start; |
dd629d5b GS |
12950 | goto vstring; |
12951 | } | |
378cc40b | 12952 | } |
02aa26ce NT |
12953 | |
12954 | /* read exponent part, if present */ | |
3792a11b | 12955 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12956 | floatit = TRUE; |
12957 | s++; | |
02aa26ce NT |
12958 | |
12959 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12960 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12961 | |
7fd134d9 JH |
12962 | /* stray preinitial _ */ |
12963 | if (*s == '_') { | |
a2a5de95 NC |
12964 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12965 | "Misplaced _ in number"); | |
7fd134d9 JH |
12966 | lastub = s++; |
12967 | } | |
12968 | ||
02aa26ce | 12969 | /* allow positive or negative exponent */ |
378cc40b LW |
12970 | if (*s == '+' || *s == '-') |
12971 | *d++ = *s++; | |
02aa26ce | 12972 | |
7fd134d9 JH |
12973 | /* stray initial _ */ |
12974 | if (*s == '_') { | |
a2a5de95 NC |
12975 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12976 | "Misplaced _ in number"); | |
7fd134d9 JH |
12977 | lastub = s++; |
12978 | } | |
12979 | ||
7fd134d9 JH |
12980 | /* read digits of exponent */ |
12981 | while (isDIGIT(*s) || *s == '_') { | |
12982 | if (isDIGIT(*s)) { | |
12983 | if (d >= e) | |
12984 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12985 | *d++ = *s++; |
7fd134d9 JH |
12986 | } |
12987 | else { | |
041457d9 | 12988 | if (((lastub && s == lastub + 1) || |
a2a5de95 NC |
12989 | (!isDIGIT(s[1]) && s[1] != '_'))) |
12990 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12991 | "Misplaced _ in number"); | |
b3b48e3e | 12992 | lastub = s++; |
7fd134d9 | 12993 | } |
7fd134d9 | 12994 | } |
378cc40b | 12995 | } |
02aa26ce | 12996 | |
02aa26ce NT |
12997 | |
12998 | /* make an sv from the string */ | |
561b68a9 | 12999 | sv = newSV(0); |
097ee67d | 13000 | |
0b7fceb9 | 13001 | /* |
58bb9ec3 NC |
13002 | We try to do an integer conversion first if no characters |
13003 | indicating "float" have been found. | |
0b7fceb9 MU |
13004 | */ |
13005 | ||
13006 | if (!floatit) { | |
58bb9ec3 | 13007 | UV uv; |
6136c704 | 13008 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
13009 | |
13010 | if (flags == IS_NUMBER_IN_UV) { | |
13011 | if (uv <= IV_MAX) | |
86554af2 | 13012 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 13013 | else |
c239479b | 13014 | sv_setuv(sv, uv); |
58bb9ec3 NC |
13015 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
13016 | if (uv <= (UV) IV_MIN) | |
13017 | sv_setiv(sv, -(IV)uv); | |
13018 | else | |
13019 | floatit = TRUE; | |
13020 | } else | |
13021 | floatit = TRUE; | |
13022 | } | |
0b7fceb9 | 13023 | if (floatit) { |
58bb9ec3 NC |
13024 | /* terminate the string */ |
13025 | *d = '\0'; | |
86554af2 JH |
13026 | nv = Atof(PL_tokenbuf); |
13027 | sv_setnv(sv, nv); | |
13028 | } | |
86554af2 | 13029 | |
eb0d8d16 NC |
13030 | if ( floatit |
13031 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
13032 | const char *const key = floatit ? "float" : "integer"; | |
13033 | const STRLEN keylen = floatit ? 5 : 7; | |
13034 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
13035 | key, keylen, sv, NULL, NULL, 0); | |
13036 | } | |
378cc40b | 13037 | break; |
0b7fceb9 | 13038 | |
e312add1 | 13039 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 13040 | case 'v': |
dd629d5b | 13041 | vstring: |
561b68a9 | 13042 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 13043 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 13044 | break; |
79072805 | 13045 | } |
a687059c | 13046 | |
02aa26ce NT |
13047 | /* make the op for the constant and return */ |
13048 | ||
a86a20aa | 13049 | if (sv) |
b73d6f50 | 13050 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 13051 | else |
5f66b61c | 13052 | lvalp->opval = NULL; |
a687059c | 13053 | |
73d840c0 | 13054 | return (char *)s; |
378cc40b LW |
13055 | } |
13056 | ||
76e3520e | 13057 | STATIC char * |
cea2e8a9 | 13058 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 13059 | { |
97aff369 | 13060 | dVAR; |
79072805 | 13061 | register char *eol; |
378cc40b | 13062 | register char *t; |
6136c704 | 13063 | SV * const stuff = newSVpvs(""); |
79072805 | 13064 | bool needargs = FALSE; |
c5ee2135 | 13065 | bool eofmt = FALSE; |
5db06880 NC |
13066 | #ifdef PERL_MAD |
13067 | char *tokenstart = s; | |
4f61fd4b JC |
13068 | SV* savewhite = NULL; |
13069 | ||
5db06880 | 13070 | if (PL_madskills) { |
cd81e915 NC |
13071 | savewhite = PL_thiswhite; |
13072 | PL_thiswhite = 0; | |
5db06880 NC |
13073 | } |
13074 | #endif | |
378cc40b | 13075 | |
7918f24d NC |
13076 | PERL_ARGS_ASSERT_SCAN_FORMLINE; |
13077 | ||
79072805 | 13078 | while (!needargs) { |
a1b95068 | 13079 | if (*s == '.') { |
c35e046a | 13080 | t = s+1; |
51882d45 | 13081 | #ifdef PERL_STRICT_CR |
c35e046a AL |
13082 | while (SPACE_OR_TAB(*t)) |
13083 | t++; | |
51882d45 | 13084 | #else |
c35e046a AL |
13085 | while (SPACE_OR_TAB(*t) || *t == '\r') |
13086 | t++; | |
51882d45 | 13087 | #endif |
c5ee2135 WL |
13088 | if (*t == '\n' || t == PL_bufend) { |
13089 | eofmt = TRUE; | |
79072805 | 13090 | break; |
c5ee2135 | 13091 | } |
79072805 | 13092 | } |
3280af22 | 13093 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 13094 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 13095 | if (!eol++) |
3280af22 | 13096 | eol = PL_bufend; |
0f85fab0 LW |
13097 | } |
13098 | else | |
3280af22 | 13099 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 13100 | if (*s != '#') { |
a0d0e21e LW |
13101 | for (t = s; t < eol; t++) { |
13102 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
13103 | needargs = FALSE; | |
13104 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 13105 | } |
a0d0e21e LW |
13106 | if (*t == '@' || *t == '^') |
13107 | needargs = TRUE; | |
378cc40b | 13108 | } |
7121b347 MG |
13109 | if (eol > s) { |
13110 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 13111 | #ifndef PERL_STRICT_CR |
7121b347 MG |
13112 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
13113 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
13114 | end[-2] = '\n'; | |
13115 | end[-1] = '\0'; | |
b162af07 | 13116 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 13117 | } |
2dc4c65b | 13118 | #endif |
7121b347 MG |
13119 | } |
13120 | else | |
13121 | break; | |
79072805 | 13122 | } |
95a20fc0 | 13123 | s = (char*)eol; |
3280af22 | 13124 | if (PL_rsfp) { |
f0e67a1d | 13125 | bool got_some; |
5db06880 NC |
13126 | #ifdef PERL_MAD |
13127 | if (PL_madskills) { | |
cd81e915 NC |
13128 | if (PL_thistoken) |
13129 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 13130 | else |
cd81e915 | 13131 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
13132 | } |
13133 | #endif | |
f0e67a1d Z |
13134 | PL_bufptr = PL_bufend; |
13135 | CopLINE_inc(PL_curcop); | |
13136 | got_some = lex_next_chunk(0); | |
13137 | CopLINE_dec(PL_curcop); | |
13138 | s = PL_bufptr; | |
5db06880 | 13139 | #ifdef PERL_MAD |
f0e67a1d | 13140 | tokenstart = PL_bufptr; |
5db06880 | 13141 | #endif |
f0e67a1d | 13142 | if (!got_some) |
378cc40b | 13143 | break; |
378cc40b | 13144 | } |
463ee0b2 | 13145 | incline(s); |
79072805 | 13146 | } |
a0d0e21e LW |
13147 | enough: |
13148 | if (SvCUR(stuff)) { | |
3280af22 | 13149 | PL_expect = XTERM; |
79072805 | 13150 | if (needargs) { |
3280af22 | 13151 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 13152 | start_force(PL_curforce); |
9ded7720 | 13153 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
13154 | force_next(','); |
13155 | } | |
a0d0e21e | 13156 | else |
3280af22 | 13157 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 13158 | if (!IN_BYTES) { |
95a20fc0 | 13159 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
13160 | SvUTF8_on(stuff); |
13161 | else if (PL_encoding) | |
13162 | sv_recode_to_utf8(stuff, PL_encoding); | |
13163 | } | |
cd81e915 | 13164 | start_force(PL_curforce); |
9ded7720 | 13165 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 13166 | force_next(THING); |
cd81e915 | 13167 | start_force(PL_curforce); |
9ded7720 | 13168 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 13169 | force_next(LSTOP); |
378cc40b | 13170 | } |
79072805 | 13171 | else { |
8990e307 | 13172 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
13173 | if (eofmt) |
13174 | PL_lex_formbrack = 0; | |
3280af22 | 13175 | PL_bufptr = s; |
79072805 | 13176 | } |
5db06880 NC |
13177 | #ifdef PERL_MAD |
13178 | if (PL_madskills) { | |
cd81e915 NC |
13179 | if (PL_thistoken) |
13180 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 13181 | else |
cd81e915 NC |
13182 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
13183 | PL_thiswhite = savewhite; | |
5db06880 NC |
13184 | } |
13185 | #endif | |
79072805 | 13186 | return s; |
378cc40b | 13187 | } |
a687059c | 13188 | |
ba6d6ac9 | 13189 | I32 |
864dbfa3 | 13190 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 13191 | { |
97aff369 | 13192 | dVAR; |
a3b680e6 | 13193 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 13194 | CV* const outsidecv = PL_compcv; |
8990e307 | 13195 | |
3280af22 NIS |
13196 | if (PL_compcv) { |
13197 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 13198 | } |
7766f137 | 13199 | SAVEI32(PL_subline); |
3280af22 | 13200 | save_item(PL_subname); |
3280af22 | 13201 | SAVESPTR(PL_compcv); |
3280af22 | 13202 | |
ea726b52 | 13203 | PL_compcv = MUTABLE_CV(newSV_type(is_format ? SVt_PVFM : SVt_PVCV)); |
3280af22 NIS |
13204 | CvFLAGS(PL_compcv) |= flags; |
13205 | ||
57843af0 | 13206 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 13207 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
ea726b52 | 13208 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outsidecv)); |
a3985cdc | 13209 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 13210 | |
8990e307 LW |
13211 | return oldsavestack_ix; |
13212 | } | |
13213 | ||
084592ab CN |
13214 | #ifdef __SC__ |
13215 | #pragma segment Perl_yylex | |
13216 | #endif | |
af41e527 NC |
13217 | static int |
13218 | S_yywarn(pTHX_ const char *const s) | |
8990e307 | 13219 | { |
97aff369 | 13220 | dVAR; |
7918f24d NC |
13221 | |
13222 | PERL_ARGS_ASSERT_YYWARN; | |
13223 | ||
faef0170 | 13224 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 13225 | yyerror(s); |
faef0170 | 13226 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 13227 | return 0; |
8990e307 LW |
13228 | } |
13229 | ||
13230 | int | |
15f169a1 | 13231 | Perl_yyerror(pTHX_ const char *const s) |
463ee0b2 | 13232 | { |
97aff369 | 13233 | dVAR; |
bfed75c6 AL |
13234 | const char *where = NULL; |
13235 | const char *context = NULL; | |
68dc0745 | 13236 | int contlen = -1; |
46fc3d4c | 13237 | SV *msg; |
5912531f | 13238 | int yychar = PL_parser->yychar; |
463ee0b2 | 13239 | |
7918f24d NC |
13240 | PERL_ARGS_ASSERT_YYERROR; |
13241 | ||
3280af22 | 13242 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 13243 | where = "at EOF"; |
8bcfe651 TM |
13244 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
13245 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
13246 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13247 | /* |
13248 | Only for NetWare: | |
13249 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13250 | when the script has error such as not having the closing quotes like: | |
13251 | if ($var eq "value) | |
13252 | Checking of white spaces is anyway done in NetWare code. | |
13253 | */ | |
13254 | #ifndef NETWARE | |
3280af22 NIS |
13255 | while (isSPACE(*PL_oldoldbufptr)) |
13256 | PL_oldoldbufptr++; | |
f355267c | 13257 | #endif |
3280af22 NIS |
13258 | context = PL_oldoldbufptr; |
13259 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 13260 | } |
8bcfe651 TM |
13261 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
13262 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13263 | /* |
13264 | Only for NetWare: | |
13265 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13266 | when the script has error such as not having the closing quotes like: | |
13267 | if ($var eq "value) | |
13268 | Checking of white spaces is anyway done in NetWare code. | |
13269 | */ | |
13270 | #ifndef NETWARE | |
3280af22 NIS |
13271 | while (isSPACE(*PL_oldbufptr)) |
13272 | PL_oldbufptr++; | |
f355267c | 13273 | #endif |
3280af22 NIS |
13274 | context = PL_oldbufptr; |
13275 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
13276 | } |
13277 | else if (yychar > 255) | |
68dc0745 | 13278 | where = "next token ???"; |
12fbd33b | 13279 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
13280 | if (PL_lex_state == LEX_NORMAL || |
13281 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 13282 | where = "at end of line"; |
3280af22 | 13283 | else if (PL_lex_inpat) |
68dc0745 | 13284 | where = "within pattern"; |
463ee0b2 | 13285 | else |
68dc0745 | 13286 | where = "within string"; |
463ee0b2 | 13287 | } |
46fc3d4c | 13288 | else { |
84bafc02 | 13289 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 13290 | if (yychar < 32) |
cea2e8a9 | 13291 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 13292 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 13293 | const char string = yychar; |
5e7aa789 NC |
13294 | sv_catpvn(where_sv, &string, 1); |
13295 | } | |
463ee0b2 | 13296 | else |
cea2e8a9 | 13297 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 13298 | where = SvPVX_const(where_sv); |
463ee0b2 | 13299 | } |
46fc3d4c | 13300 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 13301 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 13302 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 13303 | if (context) |
cea2e8a9 | 13304 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 13305 | else |
cea2e8a9 | 13306 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 13307 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 13308 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 13309 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 13310 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 13311 | PL_multi_end = 0; |
a0d0e21e | 13312 | } |
500960a6 | 13313 | if (PL_in_eval & EVAL_WARNONLY) { |
9b387841 | 13314 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); |
500960a6 | 13315 | } |
463ee0b2 | 13316 | else |
5a844595 | 13317 | qerror(msg); |
c7d6bfb2 GS |
13318 | if (PL_error_count >= 10) { |
13319 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 13320 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 13321 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
13322 | else |
13323 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 13324 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 13325 | } |
3280af22 | 13326 | PL_in_my = 0; |
5c284bb0 | 13327 | PL_in_my_stash = NULL; |
463ee0b2 LW |
13328 | return 0; |
13329 | } | |
084592ab CN |
13330 | #ifdef __SC__ |
13331 | #pragma segment Main | |
13332 | #endif | |
4e35701f | 13333 | |
b250498f | 13334 | STATIC char* |
3ae08724 | 13335 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 13336 | { |
97aff369 | 13337 | dVAR; |
f54cb97a | 13338 | const STRLEN slen = SvCUR(PL_linestr); |
7918f24d NC |
13339 | |
13340 | PERL_ARGS_ASSERT_SWALLOW_BOM; | |
13341 | ||
7aa207d6 | 13342 | switch (s[0]) { |
4e553d73 NIS |
13343 | case 0xFF: |
13344 | if (s[1] == 0xFE) { | |
ee6ba15d | 13345 | /* UTF-16 little-endian? (or UTF-32LE?) */ |
3ae08724 | 13346 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
ee6ba15d | 13347 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32LE"); |
01ec43d0 | 13348 | #ifndef PERL_NO_UTF16_FILTER |
ee6ba15d | 13349 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (BOM)\n"); |
3ae08724 | 13350 | s += 2; |
dea0fc0b | 13351 | if (PL_bufend > (char*)s) { |
81a923f4 | 13352 | s = add_utf16_textfilter(s, TRUE); |
dea0fc0b | 13353 | } |
b250498f | 13354 | #else |
ee6ba15d | 13355 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); |
b250498f | 13356 | #endif |
01ec43d0 GS |
13357 | } |
13358 | break; | |
78ae23f5 | 13359 | case 0xFE: |
7aa207d6 | 13360 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 13361 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13362 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b JH |
13363 | s += 2; |
13364 | if (PL_bufend > (char *)s) { | |
81a923f4 | 13365 | s = add_utf16_textfilter(s, FALSE); |
dea0fc0b | 13366 | } |
b250498f | 13367 | #else |
ee6ba15d | 13368 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); |
b250498f | 13369 | #endif |
01ec43d0 GS |
13370 | } |
13371 | break; | |
3ae08724 GS |
13372 | case 0xEF: |
13373 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 13374 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
13375 | s += 3; /* UTF-8 */ |
13376 | } | |
13377 | break; | |
13378 | case 0: | |
7aa207d6 JH |
13379 | if (slen > 3) { |
13380 | if (s[1] == 0) { | |
13381 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
13382 | /* UTF-32 big-endian */ | |
ee6ba15d | 13383 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32BE"); |
7aa207d6 JH |
13384 | } |
13385 | } | |
13386 | else if (s[2] == 0 && s[3] != 0) { | |
13387 | /* Leading bytes | |
13388 | * 00 xx 00 xx | |
13389 | * are a good indicator of UTF-16BE. */ | |
ee6ba15d | 13390 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13391 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); |
ee6ba15d EB |
13392 | s = add_utf16_textfilter(s, FALSE); |
13393 | #else | |
13394 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); | |
13395 | #endif | |
7aa207d6 | 13396 | } |
01ec43d0 | 13397 | } |
e294cc5d JH |
13398 | #ifdef EBCDIC |
13399 | case 0xDD: | |
13400 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
13401 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
13402 | s += 4; /* UTF-8 */ | |
13403 | } | |
13404 | break; | |
13405 | #endif | |
13406 | ||
7aa207d6 JH |
13407 | default: |
13408 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
13409 | /* Leading bytes | |
13410 | * xx 00 xx 00 | |
13411 | * are a good indicator of UTF-16LE. */ | |
ee6ba15d | 13412 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13413 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); |
81a923f4 | 13414 | s = add_utf16_textfilter(s, TRUE); |
ee6ba15d EB |
13415 | #else |
13416 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); | |
13417 | #endif | |
7aa207d6 | 13418 | } |
01ec43d0 | 13419 | } |
b8f84bb2 | 13420 | return (char*)s; |
b250498f | 13421 | } |
4755096e | 13422 | |
6e3aabd6 GS |
13423 | |
13424 | #ifndef PERL_NO_UTF16_FILTER | |
13425 | static I32 | |
a28af015 | 13426 | S_utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 13427 | { |
97aff369 | 13428 | dVAR; |
f3040f2c | 13429 | SV *const filter = FILTER_DATA(idx); |
2a773401 NC |
13430 | /* We re-use this each time round, throwing the contents away before we |
13431 | return. */ | |
2a773401 | 13432 | SV *const utf16_buffer = MUTABLE_SV(IoTOP_GV(filter)); |
f3040f2c | 13433 | SV *const utf8_buffer = filter; |
c28d6105 | 13434 | IV status = IoPAGE(filter); |
eda4663d | 13435 | const bool reverse = (bool) IoLINES(filter); |
d2d1d4de | 13436 | I32 retval; |
c8b0cbae NC |
13437 | |
13438 | /* As we're automatically added, at the lowest level, and hence only called | |
13439 | from this file, we can be sure that we're not called in block mode. Hence | |
13440 | don't bother writing code to deal with block mode. */ | |
13441 | if (maxlen) { | |
13442 | Perl_croak(aTHX_ "panic: utf16_textfilter called in block mode (for %d characters)", maxlen); | |
13443 | } | |
c28d6105 NC |
13444 | if (status < 0) { |
13445 | Perl_croak(aTHX_ "panic: utf16_textfilter called after error (status=%"IVdf")", status); | |
13446 | } | |
1de9afcd | 13447 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
c28d6105 | 13448 | "utf16_textfilter(%p,%ce): idx=%d maxlen=%d status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", |
a28af015 | 13449 | FPTR2DPTR(void *, S_utf16_textfilter), |
c28d6105 NC |
13450 | reverse ? 'l' : 'b', idx, maxlen, status, |
13451 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13452 | ||
13453 | while (1) { | |
13454 | STRLEN chars; | |
13455 | STRLEN have; | |
dea0fc0b | 13456 | I32 newlen; |
2a773401 | 13457 | U8 *end; |
c28d6105 NC |
13458 | /* First, look in our buffer of existing UTF-8 data: */ |
13459 | char *nl = (char *)memchr(SvPVX(utf8_buffer), '\n', SvCUR(utf8_buffer)); | |
13460 | ||
13461 | if (nl) { | |
13462 | ++nl; | |
13463 | } else if (status == 0) { | |
13464 | /* EOF */ | |
13465 | IoPAGE(filter) = 0; | |
13466 | nl = SvEND(utf8_buffer); | |
13467 | } | |
13468 | if (nl) { | |
d2d1d4de NC |
13469 | STRLEN got = nl - SvPVX(utf8_buffer); |
13470 | /* Did we have anything to append? */ | |
13471 | retval = got != 0; | |
13472 | sv_catpvn(sv, SvPVX(utf8_buffer), got); | |
c28d6105 NC |
13473 | /* Everything else in this code works just fine if SVp_POK isn't |
13474 | set. This, however, needs it, and we need it to work, else | |
13475 | we loop infinitely because the buffer is never consumed. */ | |
13476 | sv_chop(utf8_buffer, nl); | |
13477 | break; | |
13478 | } | |
ba77e4cc | 13479 | |
c28d6105 NC |
13480 | /* OK, not a complete line there, so need to read some more UTF-16. |
13481 | Read an extra octect if the buffer currently has an odd number. */ | |
ba77e4cc NC |
13482 | while (1) { |
13483 | if (status <= 0) | |
13484 | break; | |
13485 | if (SvCUR(utf16_buffer) >= 2) { | |
13486 | /* Location of the high octet of the last complete code point. | |
13487 | Gosh, UTF-16 is a pain. All the benefits of variable length, | |
13488 | *coupled* with all the benefits of partial reads and | |
13489 | endianness. */ | |
13490 | const U8 *const last_hi = (U8*)SvPVX(utf16_buffer) | |
13491 | + ((SvCUR(utf16_buffer) & ~1) - (reverse ? 1 : 2)); | |
13492 | ||
13493 | if (*last_hi < 0xd8 || *last_hi > 0xdb) { | |
13494 | break; | |
13495 | } | |
13496 | ||
13497 | /* We have the first half of a surrogate. Read more. */ | |
13498 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter partial surrogate detected at %p\n", last_hi)); | |
13499 | } | |
c28d6105 | 13500 | |
c28d6105 NC |
13501 | status = FILTER_READ(idx + 1, utf16_buffer, |
13502 | 160 + (SvCUR(utf16_buffer) & 1)); | |
13503 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter status=%"IVdf" SvCUR(sv)=%"UVuf"\n", status, (UV)SvCUR(utf16_buffer))); | |
ba77e4cc | 13504 | DEBUG_P({ sv_dump(utf16_buffer); sv_dump(utf8_buffer);}); |
c28d6105 NC |
13505 | if (status < 0) { |
13506 | /* Error */ | |
13507 | IoPAGE(filter) = status; | |
13508 | return status; | |
13509 | } | |
13510 | } | |
13511 | ||
13512 | chars = SvCUR(utf16_buffer) >> 1; | |
13513 | have = SvCUR(utf8_buffer); | |
13514 | SvGROW(utf8_buffer, have + chars * 3 + 1); | |
2a773401 | 13515 | |
aa6dbd60 | 13516 | if (reverse) { |
c28d6105 NC |
13517 | end = utf16_to_utf8_reversed((U8*)SvPVX(utf16_buffer), |
13518 | (U8*)SvPVX_const(utf8_buffer) + have, | |
13519 | chars * 2, &newlen); | |
aa6dbd60 | 13520 | } else { |
2a773401 | 13521 | end = utf16_to_utf8((U8*)SvPVX(utf16_buffer), |
c28d6105 NC |
13522 | (U8*)SvPVX_const(utf8_buffer) + have, |
13523 | chars * 2, &newlen); | |
2a773401 | 13524 | } |
c28d6105 | 13525 | SvCUR_set(utf8_buffer, have + newlen); |
2a773401 | 13526 | *end = '\0'; |
c28d6105 | 13527 | |
e07286ed NC |
13528 | /* No need to keep this SV "well-formed" with a '\0' after the end, as |
13529 | it's private to us, and utf16_to_utf8{,reversed} take a | |
13530 | (pointer,length) pair, rather than a NUL-terminated string. */ | |
13531 | if(SvCUR(utf16_buffer) & 1) { | |
13532 | *SvPVX(utf16_buffer) = SvEND(utf16_buffer)[-1]; | |
13533 | SvCUR_set(utf16_buffer, 1); | |
13534 | } else { | |
13535 | SvCUR_set(utf16_buffer, 0); | |
13536 | } | |
2a773401 | 13537 | } |
c28d6105 NC |
13538 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
13539 | "utf16_textfilter: returns, status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", | |
13540 | status, | |
13541 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13542 | DEBUG_P({ sv_dump(utf8_buffer); sv_dump(sv);}); | |
d2d1d4de | 13543 | return retval; |
6e3aabd6 | 13544 | } |
81a923f4 NC |
13545 | |
13546 | static U8 * | |
13547 | S_add_utf16_textfilter(pTHX_ U8 *const s, bool reversed) | |
13548 | { | |
2a773401 | 13549 | SV *filter = filter_add(S_utf16_textfilter, NULL); |
81a923f4 | 13550 | |
c28d6105 | 13551 | IoTOP_GV(filter) = MUTABLE_GV(newSVpvn((char *)s, PL_bufend - (char*)s)); |
f3040f2c | 13552 | sv_setpvs(filter, ""); |
2a773401 | 13553 | IoLINES(filter) = reversed; |
c28d6105 NC |
13554 | IoPAGE(filter) = 1; /* Not EOF */ |
13555 | ||
13556 | /* Sadly, we have to return a valid pointer, come what may, so we have to | |
13557 | ignore any error return from this. */ | |
13558 | SvCUR_set(PL_linestr, 0); | |
13559 | if (FILTER_READ(0, PL_linestr, 0)) { | |
13560 | SvUTF8_on(PL_linestr); | |
81a923f4 | 13561 | } else { |
c28d6105 | 13562 | SvUTF8_on(PL_linestr); |
81a923f4 | 13563 | } |
c28d6105 | 13564 | PL_bufend = SvEND(PL_linestr); |
81a923f4 NC |
13565 | return (U8*)SvPVX(PL_linestr); |
13566 | } | |
6e3aabd6 | 13567 | #endif |
9f4817db | 13568 | |
f333445c JP |
13569 | /* |
13570 | Returns a pointer to the next character after the parsed | |
13571 | vstring, as well as updating the passed in sv. | |
13572 | ||
13573 | Function must be called like | |
13574 | ||
561b68a9 | 13575 | sv = newSV(5); |
65b06e02 | 13576 | s = scan_vstring(s,e,sv); |
f333445c | 13577 | |
65b06e02 | 13578 | where s and e are the start and end of the string. |
f333445c JP |
13579 | The sv should already be large enough to store the vstring |
13580 | passed in, for performance reasons. | |
13581 | ||
13582 | */ | |
13583 | ||
13584 | char * | |
15f169a1 | 13585 | Perl_scan_vstring(pTHX_ const char *s, const char *const e, SV *sv) |
f333445c | 13586 | { |
97aff369 | 13587 | dVAR; |
bfed75c6 AL |
13588 | const char *pos = s; |
13589 | const char *start = s; | |
7918f24d NC |
13590 | |
13591 | PERL_ARGS_ASSERT_SCAN_VSTRING; | |
13592 | ||
f333445c | 13593 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 13594 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 13595 | pos++; |
f333445c JP |
13596 | if ( *pos != '.') { |
13597 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 13598 | const char *next = pos; |
65b06e02 | 13599 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 13600 | ++next; |
65b06e02 | 13601 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
13602 | /* return string not v-string */ |
13603 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 13604 | return (char *)pos; |
f333445c JP |
13605 | } |
13606 | } | |
13607 | ||
13608 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 13609 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 13610 | |
d4c19fe8 AL |
13611 | if (*s == 'v') |
13612 | s++; /* get past 'v' */ | |
f333445c | 13613 | |
76f68e9b | 13614 | sv_setpvs(sv, ""); |
f333445c JP |
13615 | |
13616 | for (;;) { | |
d4c19fe8 | 13617 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
13618 | U8 *tmpend; |
13619 | UV rev = 0; | |
d4c19fe8 AL |
13620 | const char *end = pos; |
13621 | UV mult = 1; | |
13622 | while (--end >= s) { | |
13623 | if (*end != '_') { | |
13624 | const UV orev = rev; | |
f333445c JP |
13625 | rev += (*end - '0') * mult; |
13626 | mult *= 10; | |
9b387841 NC |
13627 | if (orev > rev) |
13628 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
13629 | "Integer overflow in decimal number"); | |
f333445c JP |
13630 | } |
13631 | } | |
13632 | #ifdef EBCDIC | |
13633 | if (rev > 0x7FFFFFFF) | |
13634 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
13635 | #endif | |
13636 | /* Append native character for the rev point */ | |
13637 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
13638 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
13639 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
13640 | SvUTF8_on(sv); | |
65b06e02 | 13641 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
13642 | s = ++pos; |
13643 | else { | |
13644 | s = pos; | |
13645 | break; | |
13646 | } | |
65b06e02 | 13647 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
13648 | pos++; |
13649 | } | |
13650 | SvPOK_on(sv); | |
13651 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
13652 | SvRMAGICAL_on(sv); | |
13653 | } | |
73d840c0 | 13654 | return (char *)s; |
f333445c JP |
13655 | } |
13656 | ||
88e1f1a2 JV |
13657 | int |
13658 | Perl_keyword_plugin_standard(pTHX_ | |
13659 | char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) | |
13660 | { | |
13661 | PERL_ARGS_ASSERT_KEYWORD_PLUGIN_STANDARD; | |
13662 | PERL_UNUSED_CONTEXT; | |
13663 | PERL_UNUSED_ARG(keyword_ptr); | |
13664 | PERL_UNUSED_ARG(keyword_len); | |
13665 | PERL_UNUSED_ARG(op_ptr); | |
13666 | return KEYWORD_PLUGIN_DECLINE; | |
13667 | } | |
13668 | ||
1da4ca5f NC |
13669 | /* |
13670 | * Local variables: | |
13671 | * c-indentation-style: bsd | |
13672 | * c-basic-offset: 4 | |
13673 | * indent-tabs-mode: t | |
13674 | * End: | |
13675 | * | |
37442d52 RGS |
13676 | * ex: set ts=8 sts=4 sw=4 noet: |
13677 | */ |