Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
6ef55633 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 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 | /* | |
12 | * "It all comes from here, the stench and the peril." --Frodo | |
378cc40b LW |
13 | */ |
14 | ||
9cbb5ea2 GS |
15 | /* |
16 | * This file is the lexer for Perl. It's closely linked to the | |
4e553d73 | 17 | * parser, perly.y. |
ffb4593c NT |
18 | * |
19 | * The main routine is yylex(), which returns the next token. | |
20 | */ | |
21 | ||
378cc40b | 22 | #include "EXTERN.h" |
864dbfa3 | 23 | #define PERL_IN_TOKE_C |
378cc40b | 24 | #include "perl.h" |
378cc40b | 25 | |
5912531f | 26 | #define yylval (PL_parser->yylval) |
d3b6f988 | 27 | |
acdf0a21 DM |
28 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
29 | #define YYINITDEPTH 200 | |
30 | ||
199e78b7 DM |
31 | /* XXX temporary backwards compatibility */ |
32 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
33 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
34 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
35 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
36 | #define PL_lex_defer (PL_parser->lex_defer) | |
37 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
38 | #define PL_lex_expect (PL_parser->lex_expect) | |
39 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
40 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
41 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
42 | #define PL_lex_op (PL_parser->lex_op) | |
43 | #define PL_lex_repl (PL_parser->lex_repl) | |
44 | #define PL_lex_starts (PL_parser->lex_starts) | |
45 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
46 | #define PL_multi_start (PL_parser->multi_start) | |
47 | #define PL_multi_open (PL_parser->multi_open) | |
48 | #define PL_multi_close (PL_parser->multi_close) | |
49 | #define PL_pending_ident (PL_parser->pending_ident) | |
50 | #define PL_preambled (PL_parser->preambled) | |
51 | #define PL_sublex_info (PL_parser->sublex_info) | |
52 | ||
53 | #ifdef PERL_MAD | |
54 | # define PL_endwhite (PL_parser->endwhite) | |
55 | # define PL_faketokens (PL_parser->faketokens) | |
56 | # define PL_lasttoke (PL_parser->lasttoke) | |
57 | # define PL_nextwhite (PL_parser->nextwhite) | |
58 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
59 | # define PL_skipwhite (PL_parser->skipwhite) | |
60 | # define PL_thisclose (PL_parser->thisclose) | |
61 | # define PL_thismad (PL_parser->thismad) | |
62 | # define PL_thisopen (PL_parser->thisopen) | |
63 | # define PL_thisstuff (PL_parser->thisstuff) | |
64 | # define PL_thistoken (PL_parser->thistoken) | |
65 | # define PL_thiswhite (PL_parser->thiswhite) | |
66 | #endif | |
67 | ||
3cbf51f5 DM |
68 | static int |
69 | S_pending_ident(pTHX); | |
199e78b7 | 70 | |
0bd48802 | 71 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 72 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 73 | |
acfe0abc | 74 | static void restore_rsfp(pTHX_ void *f); |
6e3aabd6 | 75 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
76 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
77 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 78 | #endif |
51371543 | 79 | |
29595ff2 | 80 | #ifdef PERL_MAD |
29595ff2 | 81 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 82 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 83 | #else |
5db06880 | 84 | # define CURMAD(slot,sv) |
9ded7720 | 85 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
86 | #endif |
87 | ||
9059aa12 LW |
88 | #define XFAKEBRACK 128 |
89 | #define XENUMMASK 127 | |
90 | ||
39e02b42 JH |
91 | #ifdef USE_UTF8_SCRIPTS |
92 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 93 | #else |
746b446a | 94 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 95 | #endif |
a0ed51b3 | 96 | |
61f0cdd9 | 97 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
98 | * 1999-02-27 mjd-perl-patch@plover.com */ |
99 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
100 | ||
bf4acbe4 GS |
101 | /* On MacOS, respect nonbreaking spaces */ |
102 | #ifdef MACOS_TRADITIONAL | |
103 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
104 | #else | |
105 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
106 | #endif | |
107 | ||
ffb4593c NT |
108 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
109 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
110 | * can get by with a single comparison (if the compiler is smart enough). |
111 | */ | |
112 | ||
fb73857a | 113 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
114 | ||
b6007c36 DM |
115 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
116 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
117 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
118 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
119 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
120 | ||
121 | /* at end of code, eg "$x" followed by: */ | |
122 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
123 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
124 | ||
125 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
126 | string or after \E, $foo, etc */ | |
127 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
128 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
129 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
130 | ||
79072805 | 131 | |
bbf60fe6 | 132 | #ifdef DEBUGGING |
27da23d5 | 133 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
134 | "KNOWNEXT", |
135 | "FORMLINE", | |
136 | "INTERPCONST", | |
137 | "INTERPCONCAT", | |
138 | "INTERPENDMAYBE", | |
139 | "INTERPEND", | |
140 | "INTERPSTART", | |
141 | "INTERPPUSH", | |
142 | "INTERPCASEMOD", | |
143 | "INTERPNORMAL", | |
144 | "NORMAL" | |
145 | }; | |
146 | #endif | |
147 | ||
79072805 LW |
148 | #ifdef ff_next |
149 | #undef ff_next | |
d48672a2 LW |
150 | #endif |
151 | ||
79072805 | 152 | #include "keywords.h" |
fe14fcc3 | 153 | |
ffb4593c NT |
154 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
155 | ||
ae986130 LW |
156 | #ifdef CLINE |
157 | #undef CLINE | |
158 | #endif | |
57843af0 | 159 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 160 | |
5db06880 | 161 | #ifdef PERL_MAD |
29595ff2 NC |
162 | # define SKIPSPACE0(s) skipspace0(s) |
163 | # define SKIPSPACE1(s) skipspace1(s) | |
164 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
165 | # define PEEKSPACE(s) skipspace2(s,0) | |
166 | #else | |
167 | # define SKIPSPACE0(s) skipspace(s) | |
168 | # define SKIPSPACE1(s) skipspace(s) | |
169 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
170 | # define PEEKSPACE(s) skipspace(s) | |
171 | #endif | |
172 | ||
ffb4593c NT |
173 | /* |
174 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 175 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
176 | * |
177 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
178 | * OPERATOR : generic operator | |
179 | * AOPERATOR : assignment operator | |
180 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
181 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
182 | * PREREF : *EXPR where EXPR is not a simple identifier | |
183 | * TERM : expression term | |
184 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
185 | * FTST : file test operator | |
186 | * FUN0 : zero-argument function | |
2d2e263d | 187 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
188 | * BOop : bitwise or or xor |
189 | * BAop : bitwise and | |
190 | * SHop : shift operator | |
191 | * PWop : power operator | |
9cbb5ea2 | 192 | * PMop : pattern-matching operator |
ffb4593c NT |
193 | * Aop : addition-level operator |
194 | * Mop : multiplication-level operator | |
195 | * Eop : equality-testing operator | |
e5edeb50 | 196 | * Rop : relational operator <= != gt |
ffb4593c NT |
197 | * |
198 | * Also see LOP and lop() below. | |
199 | */ | |
200 | ||
998054bd | 201 | #ifdef DEBUGGING /* Serve -DT. */ |
f5bd084c | 202 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 203 | #else |
bbf60fe6 | 204 | # define REPORT(retval) (retval) |
998054bd SC |
205 | #endif |
206 | ||
bbf60fe6 DM |
207 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
208 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
209 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
210 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
211 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
212 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
213 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
214 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
215 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
216 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
217 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
218 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
219 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
220 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
221 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
222 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
223 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
224 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
225 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
226 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 227 | |
a687059c LW |
228 | /* This bit of chicanery makes a unary function followed by |
229 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
230 | * The UNIDOR macro is for unary functions that can be followed by the // |
231 | * operator (such as C<shift // 0>). | |
a687059c | 232 | */ |
376fcdbf AL |
233 | #define UNI2(f,x) { \ |
234 | yylval.ival = f; \ | |
235 | PL_expect = x; \ | |
236 | PL_bufptr = s; \ | |
237 | PL_last_uni = PL_oldbufptr; \ | |
238 | PL_last_lop_op = f; \ | |
239 | if (*s == '(') \ | |
240 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 241 | s = PEEKSPACE(s); \ |
376fcdbf AL |
242 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
243 | } | |
6f33ba73 RGS |
244 | #define UNI(f) UNI2(f,XTERM) |
245 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 246 | |
376fcdbf AL |
247 | #define UNIBRACK(f) { \ |
248 | yylval.ival = f; \ | |
249 | PL_bufptr = s; \ | |
250 | PL_last_uni = PL_oldbufptr; \ | |
251 | if (*s == '(') \ | |
252 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 253 | s = PEEKSPACE(s); \ |
376fcdbf AL |
254 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
255 | } | |
79072805 | 256 | |
9f68db38 | 257 | /* grandfather return to old style */ |
3280af22 | 258 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 259 | |
8fa7f367 JH |
260 | #ifdef DEBUGGING |
261 | ||
bbf60fe6 DM |
262 | /* how to interpret the yylval associated with the token */ |
263 | enum token_type { | |
264 | TOKENTYPE_NONE, | |
265 | TOKENTYPE_IVAL, | |
266 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
267 | TOKENTYPE_PVAL, | |
268 | TOKENTYPE_OPVAL, | |
269 | TOKENTYPE_GVVAL | |
270 | }; | |
271 | ||
6d4a66ac NC |
272 | static struct debug_tokens { |
273 | const int token; | |
274 | enum token_type type; | |
275 | const char *name; | |
276 | } const debug_tokens[] = | |
9041c2e3 | 277 | { |
bbf60fe6 DM |
278 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
279 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
280 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
281 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
282 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
283 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
284 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
285 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
286 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
287 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 288 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
289 | { DO, TOKENTYPE_NONE, "DO" }, |
290 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
291 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
292 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
293 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
294 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
295 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
296 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
297 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
298 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
299 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
300 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
301 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
302 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
303 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 304 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
305 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
306 | { IF, TOKENTYPE_IVAL, "IF" }, | |
307 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
308 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
309 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
310 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
311 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
312 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
313 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
314 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
315 | { MY, TOKENTYPE_IVAL, "MY" }, | |
316 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
317 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
318 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
319 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
320 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
321 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
322 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
323 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
324 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
325 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
326 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
327 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
328 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
329 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
330 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
331 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
332 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
333 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
334 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
335 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
336 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
337 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
338 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
339 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 340 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
341 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
342 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
c35e046a | 343 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
344 | }; |
345 | ||
346 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 347 | |
bbf60fe6 | 348 | STATIC int |
f5bd084c | 349 | S_tokereport(pTHX_ I32 rv) |
bbf60fe6 | 350 | { |
97aff369 | 351 | dVAR; |
bbf60fe6 | 352 | if (DEBUG_T_TEST) { |
bd61b366 | 353 | const char *name = NULL; |
bbf60fe6 | 354 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 355 | const struct debug_tokens *p; |
396482e1 | 356 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 357 | |
f54cb97a | 358 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
359 | if (p->token == (int)rv) { |
360 | name = p->name; | |
361 | type = p->type; | |
362 | break; | |
363 | } | |
364 | } | |
365 | if (name) | |
54667de8 | 366 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
367 | else if ((char)rv > ' ' && (char)rv < '~') |
368 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
369 | else if (!rv) | |
396482e1 | 370 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
371 | else |
372 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
373 | switch (type) { | |
374 | case TOKENTYPE_NONE: | |
375 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
376 | break; | |
377 | case TOKENTYPE_IVAL: | |
e4584336 | 378 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)yylval.ival); |
bbf60fe6 DM |
379 | break; |
380 | case TOKENTYPE_OPNUM: | |
381 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
382 | PL_op_name[yylval.ival]); | |
383 | break; | |
384 | case TOKENTYPE_PVAL: | |
385 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
386 | break; | |
387 | case TOKENTYPE_OPVAL: | |
b6007c36 | 388 | if (yylval.opval) { |
401441c0 | 389 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
bbf60fe6 | 390 | PL_op_name[yylval.opval->op_type]); |
b6007c36 DM |
391 | if (yylval.opval->op_type == OP_CONST) { |
392 | Perl_sv_catpvf(aTHX_ report, " %s", | |
393 | SvPEEK(cSVOPx_sv(yylval.opval))); | |
394 | } | |
395 | ||
396 | } | |
401441c0 | 397 | else |
396482e1 | 398 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
399 | break; |
400 | } | |
b6007c36 | 401 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
402 | }; |
403 | return (int)rv; | |
998054bd SC |
404 | } |
405 | ||
b6007c36 DM |
406 | |
407 | /* print the buffer with suitable escapes */ | |
408 | ||
409 | STATIC void | |
410 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
411 | { | |
396482e1 | 412 | SV* const tmp = newSVpvs(""); |
b6007c36 DM |
413 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
414 | SvREFCNT_dec(tmp); | |
415 | } | |
416 | ||
8fa7f367 JH |
417 | #endif |
418 | ||
ffb4593c NT |
419 | /* |
420 | * S_ao | |
421 | * | |
c963b151 BD |
422 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
423 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
424 | */ |
425 | ||
76e3520e | 426 | STATIC int |
cea2e8a9 | 427 | S_ao(pTHX_ int toketype) |
a0d0e21e | 428 | { |
97aff369 | 429 | dVAR; |
3280af22 NIS |
430 | if (*PL_bufptr == '=') { |
431 | PL_bufptr++; | |
a0d0e21e LW |
432 | if (toketype == ANDAND) |
433 | yylval.ival = OP_ANDASSIGN; | |
434 | else if (toketype == OROR) | |
435 | yylval.ival = OP_ORASSIGN; | |
c963b151 BD |
436 | else if (toketype == DORDOR) |
437 | yylval.ival = OP_DORASSIGN; | |
a0d0e21e LW |
438 | toketype = ASSIGNOP; |
439 | } | |
440 | return toketype; | |
441 | } | |
442 | ||
ffb4593c NT |
443 | /* |
444 | * S_no_op | |
445 | * When Perl expects an operator and finds something else, no_op | |
446 | * prints the warning. It always prints "<something> found where | |
447 | * operator expected. It prints "Missing semicolon on previous line?" | |
448 | * if the surprise occurs at the start of the line. "do you need to | |
449 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
450 | * where the compiler doesn't know if foo is a method call or a function. | |
451 | * It prints "Missing operator before end of line" if there's nothing | |
452 | * after the missing operator, or "... before <...>" if there is something | |
453 | * after the missing operator. | |
454 | */ | |
455 | ||
76e3520e | 456 | STATIC void |
bfed75c6 | 457 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 458 | { |
97aff369 | 459 | dVAR; |
9d4ba2ae AL |
460 | char * const oldbp = PL_bufptr; |
461 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 462 | |
1189a94a GS |
463 | if (!s) |
464 | s = oldbp; | |
07c798fb | 465 | else |
1189a94a | 466 | PL_bufptr = s; |
cea2e8a9 | 467 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
468 | if (ckWARN_d(WARN_SYNTAX)) { |
469 | if (is_first) | |
470 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
471 | "\t(Missing semicolon on previous line?)\n"); | |
472 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 473 | const char *t; |
c35e046a AL |
474 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
475 | NOOP; | |
56da5a46 RGS |
476 | if (t < PL_bufptr && isSPACE(*t)) |
477 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
478 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 479 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
480 | } |
481 | else { | |
482 | assert(s >= oldbp); | |
483 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 484 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 485 | } |
07c798fb | 486 | } |
3280af22 | 487 | PL_bufptr = oldbp; |
8990e307 LW |
488 | } |
489 | ||
ffb4593c NT |
490 | /* |
491 | * S_missingterm | |
492 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 493 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
494 | * If we're in a delimited string and the delimiter is a control |
495 | * character, it's reformatted into a two-char sequence like ^C. | |
496 | * This is fatal. | |
497 | */ | |
498 | ||
76e3520e | 499 | STATIC void |
cea2e8a9 | 500 | S_missingterm(pTHX_ char *s) |
8990e307 | 501 | { |
97aff369 | 502 | dVAR; |
8990e307 LW |
503 | char tmpbuf[3]; |
504 | char q; | |
505 | if (s) { | |
9d4ba2ae | 506 | char * const nl = strrchr(s,'\n'); |
d2719217 | 507 | if (nl) |
8990e307 LW |
508 | *nl = '\0'; |
509 | } | |
9d116dd7 JH |
510 | else if ( |
511 | #ifdef EBCDIC | |
512 | iscntrl(PL_multi_close) | |
513 | #else | |
514 | PL_multi_close < 32 || PL_multi_close == 127 | |
515 | #endif | |
516 | ) { | |
8990e307 | 517 | *tmpbuf = '^'; |
585ec06d | 518 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
519 | tmpbuf[2] = '\0'; |
520 | s = tmpbuf; | |
521 | } | |
522 | else { | |
eb160463 | 523 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
524 | tmpbuf[1] = '\0'; |
525 | s = tmpbuf; | |
526 | } | |
527 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 528 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 529 | } |
79072805 | 530 | |
ef89dcc3 | 531 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 532 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 533 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
0d863452 RH |
534 | /* |
535 | * S_feature_is_enabled | |
536 | * Check whether the named feature is enabled. | |
537 | */ | |
538 | STATIC bool | |
d4c19fe8 | 539 | S_feature_is_enabled(pTHX_ const char *name, STRLEN namelen) |
0d863452 | 540 | { |
97aff369 | 541 | dVAR; |
0d863452 | 542 | HV * const hinthv = GvHV(PL_hintgv); |
7b9ef140 | 543 | char he_name[32] = "feature_"; |
6fca0082 | 544 | (void) my_strlcpy(&he_name[8], name, 24); |
d4c19fe8 | 545 | |
7b9ef140 | 546 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
547 | } |
548 | ||
ffb4593c NT |
549 | /* |
550 | * Perl_deprecate | |
ffb4593c NT |
551 | */ |
552 | ||
79072805 | 553 | void |
bfed75c6 | 554 | Perl_deprecate(pTHX_ const char *s) |
a0d0e21e | 555 | { |
599cee73 | 556 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 557 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
558 | } |
559 | ||
12bcd1a6 | 560 | void |
bfed75c6 | 561 | Perl_deprecate_old(pTHX_ const char *s) |
12bcd1a6 PM |
562 | { |
563 | /* This function should NOT be called for any new deprecated warnings */ | |
564 | /* Use Perl_deprecate instead */ | |
565 | /* */ | |
566 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
567 | /* warnings category hierarchy. The "deprecated" category used to */ | |
568 | /* live under the "syntax" category. It is now a top-level category */ | |
569 | /* in its own right. */ | |
570 | ||
571 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
bfed75c6 | 572 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
573 | "Use of %s is deprecated", s); |
574 | } | |
575 | ||
ffb4593c | 576 | /* |
9cbb5ea2 GS |
577 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
578 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
579 | */ |
580 | ||
c39cd008 GS |
581 | #ifdef PERL_CR_FILTER |
582 | static void | |
583 | strip_return(SV *sv) | |
584 | { | |
95a20fc0 | 585 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 586 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
587 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
588 | while (s < e) { | |
589 | if (*s++ == '\r' && *s == '\n') { | |
590 | /* hit a CR-LF, need to copy the rest */ | |
591 | register char *d = s - 1; | |
592 | *d++ = *s++; | |
593 | while (s < e) { | |
594 | if (*s == '\r' && s[1] == '\n') | |
595 | s++; | |
596 | *d++ = *s++; | |
597 | } | |
598 | SvCUR(sv) -= s - d; | |
599 | return; | |
600 | } | |
601 | } | |
602 | } | |
a868473f | 603 | |
76e3520e | 604 | STATIC I32 |
c39cd008 | 605 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 606 | { |
f54cb97a | 607 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
608 | if (count > 0 && !maxlen) |
609 | strip_return(sv); | |
610 | return count; | |
a868473f NIS |
611 | } |
612 | #endif | |
613 | ||
199e78b7 DM |
614 | |
615 | ||
ffb4593c NT |
616 | /* |
617 | * Perl_lex_start | |
9cbb5ea2 GS |
618 | * Initialize variables. Uses the Perl save_stack to save its state (for |
619 | * recursive calls to the parser). | |
ffb4593c NT |
620 | */ |
621 | ||
a0d0e21e | 622 | void |
864dbfa3 | 623 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 624 | { |
97aff369 | 625 | dVAR; |
6ef55633 | 626 | const char *s = NULL; |
8990e307 | 627 | STRLEN len; |
acdf0a21 DM |
628 | yy_parser *parser; |
629 | ||
630 | /* create and initialise a parser */ | |
631 | ||
199e78b7 | 632 | Newxz(parser, 1, yy_parser); |
acdf0a21 DM |
633 | parser->old_parser = PL_parser; |
634 | PL_parser = parser; | |
635 | ||
636 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
637 | parser->ps = parser->stack; | |
638 | parser->stack_size = YYINITDEPTH; | |
639 | ||
640 | parser->stack->state = 0; | |
641 | parser->yyerrstatus = 0; | |
642 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
643 | ||
644 | /* initialise lexer state */ | |
8990e307 | 645 | |
3280af22 | 646 | SAVEI32(PL_lex_state); |
5db06880 NC |
647 | #ifdef PERL_MAD |
648 | if (PL_lex_state == LEX_KNOWNEXT) { | |
199e78b7 | 649 | I32 toke = parser->old_parser->lasttoke; |
5db06880 NC |
650 | while (--toke >= 0) { |
651 | SAVEI32(PL_nexttoke[toke].next_type); | |
652 | SAVEVPTR(PL_nexttoke[toke].next_val); | |
653 | if (PL_madskills) | |
654 | SAVEVPTR(PL_nexttoke[toke].next_mad); | |
655 | } | |
5db06880 | 656 | } |
cd81e915 | 657 | SAVEI32(PL_curforce); |
5db06880 | 658 | #else |
18b09519 GS |
659 | if (PL_lex_state == LEX_KNOWNEXT) { |
660 | I32 toke = PL_nexttoke; | |
661 | while (--toke >= 0) { | |
662 | SAVEI32(PL_nexttype[toke]); | |
663 | SAVEVPTR(PL_nextval[toke]); | |
664 | } | |
665 | SAVEI32(PL_nexttoke); | |
18b09519 | 666 | } |
5db06880 | 667 | #endif |
57843af0 | 668 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
669 | SAVEPPTR(PL_bufptr); |
670 | SAVEPPTR(PL_bufend); | |
671 | SAVEPPTR(PL_oldbufptr); | |
672 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
673 | SAVEPPTR(PL_last_lop); |
674 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
675 | SAVEPPTR(PL_linestart); |
676 | SAVESPTR(PL_linestr); | |
c76ac1ee | 677 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
bebdddfc | 678 | SAVEINT(PL_expect); |
3280af22 NIS |
679 | |
680 | PL_lex_state = LEX_NORMAL; | |
3280af22 | 681 | PL_expect = XSTATE; |
199e78b7 DM |
682 | Newx(parser->lex_brackstack, 120, char); |
683 | Newx(parser->lex_casestack, 12, char); | |
684 | *parser->lex_casestack = '\0'; | |
685 | #ifndef PERL_MAD | |
76be56bc | 686 | PL_nexttoke = 0; |
5db06880 | 687 | #endif |
02b34bbe | 688 | |
10efb74f NC |
689 | if (line) { |
690 | s = SvPV_const(line, len); | |
691 | } else { | |
692 | len = 0; | |
693 | } | |
694 | if (!len) { | |
695 | PL_linestr = newSVpvs("\n;"); | |
696 | } else if (SvREADONLY(line) || s[len-1] != ';') { | |
697 | PL_linestr = newSVsv(line); | |
698 | if (s[len-1] != ';') | |
0eb20fa2 | 699 | sv_catpvs(PL_linestr, "\n;"); |
6c5ce11d NC |
700 | } else { |
701 | SvTEMP_off(line); | |
702 | SvREFCNT_inc_simple_void_NN(line); | |
703 | PL_linestr = line; | |
8990e307 | 704 | } |
db4997f0 NC |
705 | /* PL_linestr needs to survive until end of scope, not just the next |
706 | FREETMPS. See changes 17505 and 17546 which fixed the symptoms only. */ | |
db4997f0 | 707 | SAVEFREESV(PL_linestr); |
3280af22 NIS |
708 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
709 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
bd61b366 | 710 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 711 | PL_rsfp = 0; |
79072805 | 712 | } |
a687059c | 713 | |
ffb4593c NT |
714 | /* |
715 | * Perl_lex_end | |
9cbb5ea2 GS |
716 | * Finalizer for lexing operations. Must be called when the parser is |
717 | * done with the lexer. | |
ffb4593c NT |
718 | */ |
719 | ||
463ee0b2 | 720 | void |
864dbfa3 | 721 | Perl_lex_end(pTHX) |
463ee0b2 | 722 | { |
97aff369 | 723 | dVAR; |
3280af22 | 724 | PL_doextract = FALSE; |
463ee0b2 LW |
725 | } |
726 | ||
ffb4593c NT |
727 | /* |
728 | * S_incline | |
729 | * This subroutine has nothing to do with tilting, whether at windmills | |
730 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 731 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 732 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
733 | * # line 500 "foo.pm" |
734 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
735 | */ |
736 | ||
76e3520e | 737 | STATIC void |
cea2e8a9 | 738 | S_incline(pTHX_ char *s) |
463ee0b2 | 739 | { |
97aff369 | 740 | dVAR; |
463ee0b2 LW |
741 | char *t; |
742 | char *n; | |
73659bf1 | 743 | char *e; |
463ee0b2 | 744 | char ch; |
463ee0b2 | 745 | |
57843af0 | 746 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
747 | if (*s++ != '#') |
748 | return; | |
d4c19fe8 AL |
749 | while (SPACE_OR_TAB(*s)) |
750 | s++; | |
73659bf1 GS |
751 | if (strnEQ(s, "line", 4)) |
752 | s += 4; | |
753 | else | |
754 | return; | |
084592ab | 755 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 756 | s++; |
4e553d73 | 757 | else |
73659bf1 | 758 | return; |
d4c19fe8 AL |
759 | while (SPACE_OR_TAB(*s)) |
760 | s++; | |
463ee0b2 LW |
761 | if (!isDIGIT(*s)) |
762 | return; | |
d4c19fe8 | 763 | |
463ee0b2 LW |
764 | n = s; |
765 | while (isDIGIT(*s)) | |
766 | s++; | |
bf4acbe4 | 767 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 768 | s++; |
73659bf1 | 769 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 770 | s++; |
73659bf1 GS |
771 | e = t + 1; |
772 | } | |
463ee0b2 | 773 | else { |
c35e046a AL |
774 | t = s; |
775 | while (!isSPACE(*t)) | |
776 | t++; | |
73659bf1 | 777 | e = t; |
463ee0b2 | 778 | } |
bf4acbe4 | 779 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
780 | e++; |
781 | if (*e != '\n' && *e != '\0') | |
782 | return; /* false alarm */ | |
783 | ||
463ee0b2 LW |
784 | ch = *t; |
785 | *t = '\0'; | |
f4dd75d9 | 786 | if (t - s > 0) { |
8a5ee598 | 787 | #ifndef USE_ITHREADS |
c4420975 | 788 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
789 | STRLEN tmplen = cf ? strlen(cf) : 0; |
790 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
791 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
792 | * to *{"::_<newfilename"} */ | |
793 | char smallbuf[256], smallbuf2[256]; | |
794 | char *tmpbuf, *tmpbuf2; | |
8a5ee598 | 795 | GV **gvp, *gv2; |
e66cf94c RGS |
796 | STRLEN tmplen2 = strlen(s); |
797 | if (tmplen + 3 < sizeof smallbuf) | |
798 | tmpbuf = smallbuf; | |
799 | else | |
800 | Newx(tmpbuf, tmplen + 3, char); | |
801 | if (tmplen2 + 3 < sizeof smallbuf2) | |
802 | tmpbuf2 = smallbuf2; | |
803 | else | |
804 | Newx(tmpbuf2, tmplen2 + 3, char); | |
805 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
806 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
807 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
808 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
809 | ++tmplen; ++tmplen2; | |
8a5ee598 RGS |
810 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
811 | if (gvp) { | |
812 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
e5527e4b | 813 | if (!isGV(gv2)) { |
8a5ee598 | 814 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
815 | /* adjust ${"::_<newfilename"} to store the new file name */ |
816 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
817 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
818 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
819 | } | |
8a5ee598 | 820 | } |
e66cf94c RGS |
821 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
822 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
823 | } | |
8a5ee598 | 824 | #endif |
05ec9bb3 | 825 | CopFILE_free(PL_curcop); |
57843af0 | 826 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 827 | } |
463ee0b2 | 828 | *t = ch; |
57843af0 | 829 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
830 | } |
831 | ||
29595ff2 | 832 | #ifdef PERL_MAD |
cd81e915 | 833 | /* skip space before PL_thistoken */ |
29595ff2 NC |
834 | |
835 | STATIC char * | |
836 | S_skipspace0(pTHX_ register char *s) | |
837 | { | |
838 | s = skipspace(s); | |
839 | if (!PL_madskills) | |
840 | return s; | |
cd81e915 NC |
841 | if (PL_skipwhite) { |
842 | if (!PL_thiswhite) | |
6b29d1f5 | 843 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
844 | sv_catsv(PL_thiswhite, PL_skipwhite); |
845 | sv_free(PL_skipwhite); | |
846 | PL_skipwhite = 0; | |
847 | } | |
848 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
849 | return s; |
850 | } | |
851 | ||
cd81e915 | 852 | /* skip space after PL_thistoken */ |
29595ff2 NC |
853 | |
854 | STATIC char * | |
855 | S_skipspace1(pTHX_ register char *s) | |
856 | { | |
d4c19fe8 | 857 | const char *start = s; |
29595ff2 NC |
858 | I32 startoff = start - SvPVX(PL_linestr); |
859 | ||
860 | s = skipspace(s); | |
861 | if (!PL_madskills) | |
862 | return s; | |
863 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 864 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 865 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
866 | PL_thistoken = newSVpvn(tstart, start - tstart); |
867 | } | |
868 | PL_realtokenstart = -1; | |
869 | if (PL_skipwhite) { | |
870 | if (!PL_nextwhite) | |
6b29d1f5 | 871 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
872 | sv_catsv(PL_nextwhite, PL_skipwhite); |
873 | sv_free(PL_skipwhite); | |
874 | PL_skipwhite = 0; | |
29595ff2 NC |
875 | } |
876 | return s; | |
877 | } | |
878 | ||
879 | STATIC char * | |
880 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
881 | { | |
c35e046a AL |
882 | char *start; |
883 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
884 | const I32 startoff = s - SvPVX(PL_linestr); | |
885 | ||
29595ff2 NC |
886 | s = skipspace(s); |
887 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
888 | if (!PL_madskills || !svp) | |
889 | return s; | |
890 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 891 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 892 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
893 | PL_thistoken = newSVpvn(tstart, start - tstart); |
894 | PL_realtokenstart = -1; | |
29595ff2 | 895 | } |
cd81e915 | 896 | if (PL_skipwhite) { |
29595ff2 | 897 | if (!*svp) |
6b29d1f5 | 898 | *svp = newSVpvs(""); |
cd81e915 NC |
899 | sv_setsv(*svp, PL_skipwhite); |
900 | sv_free(PL_skipwhite); | |
901 | PL_skipwhite = 0; | |
29595ff2 NC |
902 | } |
903 | ||
904 | return s; | |
905 | } | |
906 | #endif | |
907 | ||
80a702cd | 908 | STATIC void |
5fa550fb | 909 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *buf, STRLEN len) |
80a702cd RGS |
910 | { |
911 | AV *av = CopFILEAVx(PL_curcop); | |
912 | if (av) { | |
913 | SV * const sv = newSV(0); | |
914 | sv_upgrade(sv, SVt_PVMG); | |
5fa550fb NC |
915 | if (orig_sv) |
916 | sv_setsv(sv, orig_sv); | |
917 | else | |
918 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
919 | (void)SvIOK_on(sv); |
920 | SvIV_set(sv, 0); | |
921 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
922 | } | |
923 | } | |
924 | ||
ffb4593c NT |
925 | /* |
926 | * S_skipspace | |
927 | * Called to gobble the appropriate amount and type of whitespace. | |
928 | * Skips comments as well. | |
929 | */ | |
930 | ||
76e3520e | 931 | STATIC char * |
cea2e8a9 | 932 | S_skipspace(pTHX_ register char *s) |
a687059c | 933 | { |
97aff369 | 934 | dVAR; |
5db06880 NC |
935 | #ifdef PERL_MAD |
936 | int curoff; | |
937 | int startoff = s - SvPVX(PL_linestr); | |
938 | ||
cd81e915 NC |
939 | if (PL_skipwhite) { |
940 | sv_free(PL_skipwhite); | |
941 | PL_skipwhite = 0; | |
5db06880 NC |
942 | } |
943 | #endif | |
944 | ||
3280af22 | 945 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 946 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 947 | s++; |
5db06880 NC |
948 | #ifdef PERL_MAD |
949 | goto done; | |
950 | #else | |
463ee0b2 | 951 | return s; |
5db06880 | 952 | #endif |
463ee0b2 LW |
953 | } |
954 | for (;;) { | |
fd049845 | 955 | STRLEN prevlen; |
09bef843 | 956 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 957 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
958 | while (s < PL_bufend && isSPACE(*s)) { |
959 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
960 | incline(s); | |
961 | } | |
ffb4593c NT |
962 | |
963 | /* comment */ | |
3280af22 NIS |
964 | if (s < PL_bufend && *s == '#') { |
965 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 966 | s++; |
60e6418e | 967 | if (s < PL_bufend) { |
463ee0b2 | 968 | s++; |
60e6418e GS |
969 | if (PL_in_eval && !PL_rsfp) { |
970 | incline(s); | |
971 | continue; | |
972 | } | |
973 | } | |
463ee0b2 | 974 | } |
ffb4593c NT |
975 | |
976 | /* only continue to recharge the buffer if we're at the end | |
977 | * of the buffer, we're not reading from a source filter, and | |
978 | * we're in normal lexing mode | |
979 | */ | |
09bef843 SB |
980 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
981 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
982 | #ifdef PERL_MAD |
983 | goto done; | |
984 | #else | |
463ee0b2 | 985 | return s; |
5db06880 | 986 | #endif |
ffb4593c NT |
987 | |
988 | /* try to recharge the buffer */ | |
5db06880 NC |
989 | #ifdef PERL_MAD |
990 | curoff = s - SvPVX(PL_linestr); | |
991 | #endif | |
992 | ||
9cbb5ea2 | 993 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 994 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 995 | { |
5db06880 NC |
996 | #ifdef PERL_MAD |
997 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 998 | if (!PL_skipwhite) |
6b29d1f5 | 999 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 1000 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1001 | curoff - startoff); |
1002 | } | |
1003 | ||
1004 | /* mustn't throw out old stuff yet if madpropping */ | |
1005 | SvCUR(PL_linestr) = curoff; | |
1006 | s = SvPVX(PL_linestr) + curoff; | |
1007 | *s = 0; | |
1008 | if (curoff && s[-1] == '\n') | |
1009 | s[-1] = ' '; | |
1010 | #endif | |
1011 | ||
9cbb5ea2 | 1012 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 1013 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 1014 | if (PL_minus_p) { |
5db06880 NC |
1015 | #ifdef PERL_MAD |
1016 | sv_catpv(PL_linestr, | |
1017 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
1018 | #else | |
01a19ab0 NC |
1019 | sv_setpv(PL_linestr, |
1020 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
5db06880 | 1021 | #endif |
3280af22 | 1022 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 1023 | } |
01a19ab0 | 1024 | else if (PL_minus_n) { |
5db06880 NC |
1025 | #ifdef PERL_MAD |
1026 | sv_catpvn(PL_linestr, ";}", 2); | |
1027 | #else | |
01a19ab0 | 1028 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 1029 | #endif |
01a19ab0 NC |
1030 | PL_minus_n = 0; |
1031 | } | |
a0d0e21e | 1032 | else |
5db06880 NC |
1033 | #ifdef PERL_MAD |
1034 | sv_catpvn(PL_linestr,";", 1); | |
1035 | #else | |
4147a61b | 1036 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 1037 | #endif |
ffb4593c NT |
1038 | |
1039 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 1040 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
1041 | = SvPVX(PL_linestr) |
1042 | #ifdef PERL_MAD | |
1043 | + curoff | |
1044 | #endif | |
1045 | ; | |
3280af22 | 1046 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 1047 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
1048 | |
1049 | /* Close the filehandle. Could be from -P preprocessor, | |
1050 | * STDIN, or a regular file. If we were reading code from | |
1051 | * STDIN (because the commandline held no -e or filename) | |
1052 | * then we don't close it, we reset it so the code can | |
1053 | * read from STDIN too. | |
1054 | */ | |
1055 | ||
3280af22 NIS |
1056 | if (PL_preprocess && !PL_in_eval) |
1057 | (void)PerlProc_pclose(PL_rsfp); | |
1058 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
1059 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 1060 | else |
3280af22 | 1061 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1062 | PL_rsfp = NULL; |
463ee0b2 LW |
1063 | return s; |
1064 | } | |
ffb4593c NT |
1065 | |
1066 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1067 | /* make corresponding updates to old pointers, for yyerror() */ |
1068 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1069 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1070 | if (PL_last_uni) | |
1071 | oldunilen = PL_last_uni - PL_bufend; | |
1072 | if (PL_last_lop) | |
1073 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1074 | PL_linestart = PL_bufptr = s + prevlen; |
1075 | PL_bufend = s + SvCUR(PL_linestr); | |
1076 | s = PL_bufptr; | |
09bef843 SB |
1077 | PL_oldbufptr = s + oldprevlen; |
1078 | PL_oldoldbufptr = s + oldoldprevlen; | |
1079 | if (PL_last_uni) | |
1080 | PL_last_uni = s + oldunilen; | |
1081 | if (PL_last_lop) | |
1082 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1083 | incline(s); |
ffb4593c NT |
1084 | |
1085 | /* debugger active and we're not compiling the debugger code, | |
1086 | * so store the line into the debugger's array of lines | |
1087 | */ | |
80a702cd | 1088 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 1089 | update_debugger_info(NULL, PL_bufptr, PL_bufend - PL_bufptr); |
463ee0b2 | 1090 | } |
5db06880 NC |
1091 | |
1092 | #ifdef PERL_MAD | |
1093 | done: | |
1094 | if (PL_madskills) { | |
cd81e915 | 1095 | if (!PL_skipwhite) |
6b29d1f5 | 1096 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1097 | curoff = s - SvPVX(PL_linestr); |
1098 | if (curoff - startoff) | |
cd81e915 | 1099 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1100 | curoff - startoff); |
1101 | } | |
1102 | return s; | |
1103 | #endif | |
a687059c | 1104 | } |
378cc40b | 1105 | |
ffb4593c NT |
1106 | /* |
1107 | * S_check_uni | |
1108 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1109 | * used. An ambiguous piece of code would be: | |
1110 | * rand + 5 | |
1111 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1112 | * the +5 is its argument. | |
1113 | */ | |
1114 | ||
76e3520e | 1115 | STATIC void |
cea2e8a9 | 1116 | S_check_uni(pTHX) |
ba106d47 | 1117 | { |
97aff369 | 1118 | dVAR; |
d4c19fe8 AL |
1119 | const char *s; |
1120 | const char *t; | |
2f3197b3 | 1121 | |
3280af22 | 1122 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1123 | return; |
3280af22 NIS |
1124 | while (isSPACE(*PL_last_uni)) |
1125 | PL_last_uni++; | |
c35e046a AL |
1126 | s = PL_last_uni; |
1127 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1128 | s++; | |
3280af22 | 1129 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1130 | return; |
6136c704 | 1131 | |
0453d815 | 1132 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1133 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1134 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1135 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1136 | } |
2f3197b3 LW |
1137 | } |
1138 | ||
ffb4593c NT |
1139 | /* |
1140 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1141 | * with a subroutine, S_lop() for which LOP is just another name. | |
1142 | */ | |
1143 | ||
a0d0e21e LW |
1144 | #define LOP(f,x) return lop(f,x,s) |
1145 | ||
ffb4593c NT |
1146 | /* |
1147 | * S_lop | |
1148 | * Build a list operator (or something that might be one). The rules: | |
1149 | * - if we have a next token, then it's a list operator [why?] | |
1150 | * - if the next thing is an opening paren, then it's a function | |
1151 | * - else it's a list operator | |
1152 | */ | |
1153 | ||
76e3520e | 1154 | STATIC I32 |
a0be28da | 1155 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1156 | { |
97aff369 | 1157 | dVAR; |
79072805 | 1158 | yylval.ival = f; |
35c8bce7 | 1159 | CLINE; |
3280af22 NIS |
1160 | PL_expect = x; |
1161 | PL_bufptr = s; | |
1162 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1163 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1164 | #ifdef PERL_MAD |
1165 | if (PL_lasttoke) | |
1166 | return REPORT(LSTOP); | |
1167 | #else | |
3280af22 | 1168 | if (PL_nexttoke) |
bbf60fe6 | 1169 | return REPORT(LSTOP); |
5db06880 | 1170 | #endif |
79072805 | 1171 | if (*s == '(') |
bbf60fe6 | 1172 | return REPORT(FUNC); |
29595ff2 | 1173 | s = PEEKSPACE(s); |
79072805 | 1174 | if (*s == '(') |
bbf60fe6 | 1175 | return REPORT(FUNC); |
79072805 | 1176 | else |
bbf60fe6 | 1177 | return REPORT(LSTOP); |
79072805 LW |
1178 | } |
1179 | ||
5db06880 NC |
1180 | #ifdef PERL_MAD |
1181 | /* | |
1182 | * S_start_force | |
1183 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1184 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1185 | * on the "pop" end. | |
1186 | */ | |
1187 | ||
1188 | STATIC void | |
1189 | S_start_force(pTHX_ int where) | |
1190 | { | |
1191 | int i; | |
1192 | ||
cd81e915 | 1193 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1194 | where = PL_lasttoke; |
cd81e915 NC |
1195 | assert(PL_curforce < 0 || PL_curforce == where); |
1196 | if (PL_curforce != where) { | |
5db06880 NC |
1197 | for (i = PL_lasttoke; i > where; --i) { |
1198 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1199 | } | |
1200 | PL_lasttoke++; | |
1201 | } | |
cd81e915 | 1202 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1203 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1204 | PL_curforce = where; |
1205 | if (PL_nextwhite) { | |
5db06880 | 1206 | if (PL_madskills) |
6b29d1f5 | 1207 | curmad('^', newSVpvs("")); |
cd81e915 | 1208 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1209 | } |
1210 | } | |
1211 | ||
1212 | STATIC void | |
1213 | S_curmad(pTHX_ char slot, SV *sv) | |
1214 | { | |
1215 | MADPROP **where; | |
1216 | ||
1217 | if (!sv) | |
1218 | return; | |
cd81e915 NC |
1219 | if (PL_curforce < 0) |
1220 | where = &PL_thismad; | |
5db06880 | 1221 | else |
cd81e915 | 1222 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1223 | |
cd81e915 | 1224 | if (PL_faketokens) |
5db06880 NC |
1225 | sv_setpvn(sv, "", 0); |
1226 | else { | |
1227 | if (!IN_BYTES) { | |
1228 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1229 | SvUTF8_on(sv); | |
1230 | else if (PL_encoding) { | |
1231 | sv_recode_to_utf8(sv, PL_encoding); | |
1232 | } | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | /* keep a slot open for the head of the list? */ | |
1237 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1238 | (*where)->mad_key = slot; | |
1239 | sv_free((*where)->mad_val); | |
1240 | (*where)->mad_val = (void*)sv; | |
1241 | } | |
1242 | else | |
1243 | addmad(newMADsv(slot, sv), where, 0); | |
1244 | } | |
1245 | #else | |
b3f24c00 MHM |
1246 | # define start_force(where) NOOP |
1247 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1248 | #endif |
1249 | ||
ffb4593c NT |
1250 | /* |
1251 | * S_force_next | |
9cbb5ea2 | 1252 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1253 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1254 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1255 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1256 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1257 | */ |
1258 | ||
4e553d73 | 1259 | STATIC void |
cea2e8a9 | 1260 | S_force_next(pTHX_ I32 type) |
79072805 | 1261 | { |
97aff369 | 1262 | dVAR; |
5db06880 | 1263 | #ifdef PERL_MAD |
cd81e915 | 1264 | if (PL_curforce < 0) |
5db06880 | 1265 | start_force(PL_lasttoke); |
cd81e915 | 1266 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1267 | if (PL_lex_state != LEX_KNOWNEXT) |
1268 | PL_lex_defer = PL_lex_state; | |
1269 | PL_lex_state = LEX_KNOWNEXT; | |
1270 | PL_lex_expect = PL_expect; | |
cd81e915 | 1271 | PL_curforce = -1; |
5db06880 | 1272 | #else |
3280af22 NIS |
1273 | PL_nexttype[PL_nexttoke] = type; |
1274 | PL_nexttoke++; | |
1275 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1276 | PL_lex_defer = PL_lex_state; | |
1277 | PL_lex_expect = PL_expect; | |
1278 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1279 | } |
5db06880 | 1280 | #endif |
79072805 LW |
1281 | } |
1282 | ||
d0a148a6 NC |
1283 | STATIC SV * |
1284 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1285 | { | |
97aff369 | 1286 | dVAR; |
9d4ba2ae | 1287 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 1288 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
1289 | SvUTF8_on(sv); |
1290 | return sv; | |
1291 | } | |
1292 | ||
ffb4593c NT |
1293 | /* |
1294 | * S_force_word | |
1295 | * When the lexer knows the next thing is a word (for instance, it has | |
1296 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1297 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1298 | * lookahead. | |
ffb4593c NT |
1299 | * |
1300 | * Arguments: | |
b1b65b59 | 1301 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1302 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1303 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1304 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1305 | * int allow_pack : if true, : characters will also be allowed (require, | |
1306 | * use, etc. do this) | |
9cbb5ea2 | 1307 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1308 | */ |
1309 | ||
76e3520e | 1310 | STATIC char * |
cea2e8a9 | 1311 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1312 | { |
97aff369 | 1313 | dVAR; |
463ee0b2 LW |
1314 | register char *s; |
1315 | STRLEN len; | |
4e553d73 | 1316 | |
29595ff2 | 1317 | start = SKIPSPACE1(start); |
463ee0b2 | 1318 | s = start; |
7e2040f0 | 1319 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1320 | (allow_pack && *s == ':') || |
15f0808c | 1321 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1322 | { |
3280af22 | 1323 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1324 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1325 | return start; |
cd81e915 | 1326 | start_force(PL_curforce); |
5db06880 NC |
1327 | if (PL_madskills) |
1328 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1329 | if (token == METHOD) { |
29595ff2 | 1330 | s = SKIPSPACE1(s); |
463ee0b2 | 1331 | if (*s == '(') |
3280af22 | 1332 | PL_expect = XTERM; |
463ee0b2 | 1333 | else { |
3280af22 | 1334 | PL_expect = XOPERATOR; |
463ee0b2 | 1335 | } |
79072805 | 1336 | } |
9ded7720 | 1337 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1338 | = (OP*)newSVOP(OP_CONST,0, |
1339 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1340 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1341 | force_next(token); |
1342 | } | |
1343 | return s; | |
1344 | } | |
1345 | ||
ffb4593c NT |
1346 | /* |
1347 | * S_force_ident | |
9cbb5ea2 | 1348 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1349 | * text only contains the "foo" portion. The first argument is a pointer |
1350 | * to the "foo", and the second argument is the type symbol to prefix. | |
1351 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1352 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1353 | */ |
1354 | ||
76e3520e | 1355 | STATIC void |
bfed75c6 | 1356 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1357 | { |
97aff369 | 1358 | dVAR; |
c35e046a | 1359 | if (*s) { |
90e5519e NC |
1360 | const STRLEN len = strlen(s); |
1361 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1362 | start_force(PL_curforce); |
9ded7720 | 1363 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1364 | force_next(WORD); |
748a9306 | 1365 | if (kind) { |
11343788 | 1366 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1367 | /* XXX see note in pp_entereval() for why we forgo typo |
1368 | warnings if the symbol must be introduced in an eval. | |
1369 | GSAR 96-10-12 */ | |
90e5519e NC |
1370 | gv_fetchpvn_flags(s, len, |
1371 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1372 | : GV_ADD, | |
1373 | kind == '$' ? SVt_PV : | |
1374 | kind == '@' ? SVt_PVAV : | |
1375 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1376 | SVt_PVGV |
90e5519e | 1377 | ); |
748a9306 | 1378 | } |
79072805 LW |
1379 | } |
1380 | } | |
1381 | ||
1571675a GS |
1382 | NV |
1383 | Perl_str_to_version(pTHX_ SV *sv) | |
1384 | { | |
1385 | NV retval = 0.0; | |
1386 | NV nshift = 1.0; | |
1387 | STRLEN len; | |
cfd0369c | 1388 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1389 | const char * const end = start + len; |
504618e9 | 1390 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1391 | while (start < end) { |
ba210ebe | 1392 | STRLEN skip; |
1571675a GS |
1393 | UV n; |
1394 | if (utf) | |
9041c2e3 | 1395 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1396 | else { |
1397 | n = *(U8*)start; | |
1398 | skip = 1; | |
1399 | } | |
1400 | retval += ((NV)n)/nshift; | |
1401 | start += skip; | |
1402 | nshift *= 1000; | |
1403 | } | |
1404 | return retval; | |
1405 | } | |
1406 | ||
4e553d73 | 1407 | /* |
ffb4593c NT |
1408 | * S_force_version |
1409 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1410 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1411 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1412 | * must use an alternative parsing method). | |
ffb4593c NT |
1413 | */ |
1414 | ||
76e3520e | 1415 | STATIC char * |
e759cc13 | 1416 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1417 | { |
97aff369 | 1418 | dVAR; |
5f66b61c | 1419 | OP *version = NULL; |
44dcb63b | 1420 | char *d; |
5db06880 NC |
1421 | #ifdef PERL_MAD |
1422 | I32 startoff = s - SvPVX(PL_linestr); | |
1423 | #endif | |
89bfa8cd | 1424 | |
29595ff2 | 1425 | s = SKIPSPACE1(s); |
89bfa8cd | 1426 | |
44dcb63b | 1427 | d = s; |
dd629d5b | 1428 | if (*d == 'v') |
44dcb63b | 1429 | d++; |
44dcb63b | 1430 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1431 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1432 | d++; | |
5db06880 NC |
1433 | #ifdef PERL_MAD |
1434 | if (PL_madskills) { | |
cd81e915 | 1435 | start_force(PL_curforce); |
5db06880 NC |
1436 | curmad('X', newSVpvn(s,d-s)); |
1437 | } | |
1438 | #endif | |
9f3d182e | 1439 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1440 | SV *ver; |
b73d6f50 | 1441 | s = scan_num(s, &yylval); |
89bfa8cd | 1442 | version = yylval.opval; |
dd629d5b GS |
1443 | ver = cSVOPx(version)->op_sv; |
1444 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1445 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1446 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1447 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1448 | } |
89bfa8cd | 1449 | } |
5db06880 NC |
1450 | else if (guessing) { |
1451 | #ifdef PERL_MAD | |
1452 | if (PL_madskills) { | |
cd81e915 NC |
1453 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1454 | PL_nextwhite = 0; | |
5db06880 NC |
1455 | s = SvPVX(PL_linestr) + startoff; |
1456 | } | |
1457 | #endif | |
e759cc13 | 1458 | return s; |
5db06880 | 1459 | } |
89bfa8cd | 1460 | } |
1461 | ||
5db06880 NC |
1462 | #ifdef PERL_MAD |
1463 | if (PL_madskills && !version) { | |
cd81e915 NC |
1464 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1465 | PL_nextwhite = 0; | |
5db06880 NC |
1466 | s = SvPVX(PL_linestr) + startoff; |
1467 | } | |
1468 | #endif | |
89bfa8cd | 1469 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1470 | start_force(PL_curforce); |
9ded7720 | 1471 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1472 | force_next(WORD); |
89bfa8cd | 1473 | |
e759cc13 | 1474 | return s; |
89bfa8cd | 1475 | } |
1476 | ||
ffb4593c NT |
1477 | /* |
1478 | * S_tokeq | |
1479 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1480 | * chunk, up to end of string or a backslash. It may make a new | |
1481 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1482 | * turns \\ into \. | |
1483 | */ | |
1484 | ||
76e3520e | 1485 | STATIC SV * |
cea2e8a9 | 1486 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1487 | { |
97aff369 | 1488 | dVAR; |
79072805 LW |
1489 | register char *s; |
1490 | register char *send; | |
1491 | register char *d; | |
b3ac6de7 IZ |
1492 | STRLEN len = 0; |
1493 | SV *pv = sv; | |
79072805 LW |
1494 | |
1495 | if (!SvLEN(sv)) | |
b3ac6de7 | 1496 | goto finish; |
79072805 | 1497 | |
a0d0e21e | 1498 | s = SvPV_force(sv, len); |
21a311ee | 1499 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1500 | goto finish; |
463ee0b2 | 1501 | send = s + len; |
79072805 LW |
1502 | while (s < send && *s != '\\') |
1503 | s++; | |
1504 | if (s == send) | |
b3ac6de7 | 1505 | goto finish; |
79072805 | 1506 | d = s; |
be4731d2 | 1507 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1508 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1509 | if (SvUTF8(sv)) |
1510 | SvUTF8_on(pv); | |
1511 | } | |
79072805 LW |
1512 | while (s < send) { |
1513 | if (*s == '\\') { | |
a0d0e21e | 1514 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1515 | s++; /* all that, just for this */ |
1516 | } | |
1517 | *d++ = *s++; | |
1518 | } | |
1519 | *d = '\0'; | |
95a20fc0 | 1520 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1521 | finish: |
3280af22 | 1522 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1523 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1524 | return sv; |
1525 | } | |
1526 | ||
ffb4593c NT |
1527 | /* |
1528 | * Now come three functions related to double-quote context, | |
1529 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1530 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1531 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1532 | * to handle functions and concatenation. | |
1533 | * They assume that whoever calls them will be setting up a fake | |
1534 | * join call, because each subthing puts a ',' after it. This lets | |
1535 | * "lower \luPpEr" | |
1536 | * become | |
1537 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1538 | * | |
1539 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1540 | * arguments and join's arguments are created or not). | |
1541 | */ | |
1542 | ||
1543 | /* | |
1544 | * S_sublex_start | |
1545 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1546 | * | |
1547 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1548 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1549 | * | |
1550 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1551 | * | |
1552 | * Everything else becomes a FUNC. | |
1553 | * | |
1554 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1555 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1556 | * call to S_sublex_push(). | |
1557 | */ | |
1558 | ||
76e3520e | 1559 | STATIC I32 |
cea2e8a9 | 1560 | S_sublex_start(pTHX) |
79072805 | 1561 | { |
97aff369 | 1562 | dVAR; |
0d46e09a | 1563 | register const I32 op_type = yylval.ival; |
79072805 LW |
1564 | |
1565 | if (op_type == OP_NULL) { | |
3280af22 | 1566 | yylval.opval = PL_lex_op; |
5f66b61c | 1567 | PL_lex_op = NULL; |
79072805 LW |
1568 | return THING; |
1569 | } | |
1570 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1571 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1572 | |
1573 | if (SvTYPE(sv) == SVt_PVIV) { | |
1574 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1575 | STRLEN len; | |
96a5add6 | 1576 | const char * const p = SvPV_const(sv, len); |
f54cb97a | 1577 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1578 | if (SvUTF8(sv)) |
1579 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1580 | SvREFCNT_dec(sv); |
1581 | sv = nsv; | |
4e553d73 | 1582 | } |
b3ac6de7 | 1583 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1584 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1585 | /* Allow <FH> // "foo" */ |
1586 | if (op_type == OP_READLINE) | |
1587 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1588 | return THING; |
1589 | } | |
e3f73d4e RGS |
1590 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
1591 | /* readpipe() vas overriden */ | |
1592 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
1593 | yylval.opval = PL_lex_op; | |
9b201d7d | 1594 | PL_lex_op = NULL; |
e3f73d4e RGS |
1595 | PL_lex_stuff = NULL; |
1596 | return THING; | |
1597 | } | |
79072805 | 1598 | |
3280af22 NIS |
1599 | PL_sublex_info.super_state = PL_lex_state; |
1600 | PL_sublex_info.sub_inwhat = op_type; | |
1601 | PL_sublex_info.sub_op = PL_lex_op; | |
1602 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1603 | |
3280af22 NIS |
1604 | PL_expect = XTERM; |
1605 | if (PL_lex_op) { | |
1606 | yylval.opval = PL_lex_op; | |
5f66b61c | 1607 | PL_lex_op = NULL; |
55497cff | 1608 | return PMFUNC; |
1609 | } | |
1610 | else | |
1611 | return FUNC; | |
1612 | } | |
1613 | ||
ffb4593c NT |
1614 | /* |
1615 | * S_sublex_push | |
1616 | * Create a new scope to save the lexing state. The scope will be | |
1617 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1618 | * to the uc, lc, etc. found before. | |
1619 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1620 | */ | |
1621 | ||
76e3520e | 1622 | STATIC I32 |
cea2e8a9 | 1623 | S_sublex_push(pTHX) |
55497cff | 1624 | { |
27da23d5 | 1625 | dVAR; |
f46d017c | 1626 | ENTER; |
55497cff | 1627 | |
3280af22 NIS |
1628 | PL_lex_state = PL_sublex_info.super_state; |
1629 | SAVEI32(PL_lex_dojoin); | |
1630 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1631 | SAVEI32(PL_lex_casemods); |
1632 | SAVEI32(PL_lex_starts); | |
1633 | SAVEI32(PL_lex_state); | |
7766f137 | 1634 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1635 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1636 | SAVECOPLINE(PL_curcop); |
3280af22 | 1637 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1638 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1639 | SAVEPPTR(PL_oldbufptr); |
1640 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1641 | SAVEPPTR(PL_last_lop); |
1642 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1643 | SAVEPPTR(PL_linestart); |
1644 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1645 | SAVEGENERICPV(PL_lex_brackstack); |
1646 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1647 | |
1648 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1649 | PL_lex_stuff = NULL; |
3280af22 | 1650 | |
9cbb5ea2 GS |
1651 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1652 | = SvPVX(PL_linestr); | |
3280af22 | 1653 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1654 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1655 | SAVEFREESV(PL_linestr); |
1656 | ||
1657 | PL_lex_dojoin = FALSE; | |
1658 | PL_lex_brackets = 0; | |
a02a5408 JC |
1659 | Newx(PL_lex_brackstack, 120, char); |
1660 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1661 | PL_lex_casemods = 0; |
1662 | *PL_lex_casestack = '\0'; | |
1663 | PL_lex_starts = 0; | |
1664 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1665 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1666 | |
1667 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1668 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1669 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1670 | else |
5f66b61c | 1671 | PL_lex_inpat = NULL; |
79072805 | 1672 | |
55497cff | 1673 | return '('; |
79072805 LW |
1674 | } |
1675 | ||
ffb4593c NT |
1676 | /* |
1677 | * S_sublex_done | |
1678 | * Restores lexer state after a S_sublex_push. | |
1679 | */ | |
1680 | ||
76e3520e | 1681 | STATIC I32 |
cea2e8a9 | 1682 | S_sublex_done(pTHX) |
79072805 | 1683 | { |
27da23d5 | 1684 | dVAR; |
3280af22 | 1685 | if (!PL_lex_starts++) { |
396482e1 | 1686 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1687 | if (SvUTF8(PL_linestr)) |
1688 | SvUTF8_on(sv); | |
3280af22 | 1689 | PL_expect = XOPERATOR; |
9aa983d2 | 1690 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1691 | return THING; |
1692 | } | |
1693 | ||
3280af22 NIS |
1694 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1695 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1696 | return yylex(); |
79072805 LW |
1697 | } |
1698 | ||
ffb4593c | 1699 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1700 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1701 | PL_linestr = PL_lex_repl; | |
1702 | PL_lex_inpat = 0; | |
1703 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1704 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1705 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1706 | SAVEFREESV(PL_linestr); |
1707 | PL_lex_dojoin = FALSE; | |
1708 | PL_lex_brackets = 0; | |
3280af22 NIS |
1709 | PL_lex_casemods = 0; |
1710 | *PL_lex_casestack = '\0'; | |
1711 | PL_lex_starts = 0; | |
25da4f38 | 1712 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1713 | PL_lex_state = LEX_INTERPNORMAL; |
1714 | PL_lex_starts++; | |
e9fa98b2 HS |
1715 | /* we don't clear PL_lex_repl here, so that we can check later |
1716 | whether this is an evalled subst; that means we rely on the | |
1717 | logic to ensure sublex_done() is called again only via the | |
1718 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1719 | } |
e9fa98b2 | 1720 | else { |
3280af22 | 1721 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1722 | PL_lex_repl = NULL; |
e9fa98b2 | 1723 | } |
79072805 | 1724 | return ','; |
ffed7fef LW |
1725 | } |
1726 | else { | |
5db06880 NC |
1727 | #ifdef PERL_MAD |
1728 | if (PL_madskills) { | |
cd81e915 NC |
1729 | if (PL_thiswhite) { |
1730 | if (!PL_endwhite) | |
6b29d1f5 | 1731 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1732 | sv_catsv(PL_endwhite, PL_thiswhite); |
1733 | PL_thiswhite = 0; | |
1734 | } | |
1735 | if (PL_thistoken) | |
1736 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1737 | else |
cd81e915 | 1738 | PL_realtokenstart = -1; |
5db06880 NC |
1739 | } |
1740 | #endif | |
f46d017c | 1741 | LEAVE; |
3280af22 NIS |
1742 | PL_bufend = SvPVX(PL_linestr); |
1743 | PL_bufend += SvCUR(PL_linestr); | |
1744 | PL_expect = XOPERATOR; | |
09bef843 | 1745 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1746 | return ')'; |
ffed7fef LW |
1747 | } |
1748 | } | |
1749 | ||
02aa26ce NT |
1750 | /* |
1751 | scan_const | |
1752 | ||
1753 | Extracts a pattern, double-quoted string, or transliteration. This | |
1754 | is terrifying code. | |
1755 | ||
94def140 | 1756 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1757 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1758 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1759 | |
94def140 TS |
1760 | Returns a pointer to the character scanned up to. If this is |
1761 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a GS |
1762 | successfully parsed), will leave an OP for the substring scanned |
1763 | in yylval. Caller must intuit reason for not parsing further | |
1764 | by looking at the next characters herself. | |
1765 | ||
02aa26ce NT |
1766 | In patterns: |
1767 | backslashes: | |
1768 | double-quoted style: \r and \n | |
1769 | regexp special ones: \D \s | |
94def140 TS |
1770 | constants: \x31 |
1771 | backrefs: \1 | |
02aa26ce NT |
1772 | case and quoting: \U \Q \E |
1773 | stops on @ and $, but not for $ as tail anchor | |
1774 | ||
1775 | In transliterations: | |
1776 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1777 | of the string, which indicates a range. If the range is in bytes, |
1778 | scan_const expands the range to the full set of intermediate | |
1779 | characters. If the range is in utf8, the hyphen is replaced with | |
1780 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1781 | |
1782 | In double-quoted strings: | |
1783 | backslashes: | |
1784 | double-quoted style: \r and \n | |
94def140 TS |
1785 | constants: \x31 |
1786 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1787 | case and quoting: \U \Q \E |
1788 | stops on @ and $ | |
1789 | ||
1790 | scan_const does *not* construct ops to handle interpolated strings. | |
1791 | It stops processing as soon as it finds an embedded $ or @ variable | |
1792 | and leaves it to the caller to work out what's going on. | |
1793 | ||
94def140 TS |
1794 | embedded arrays (whether in pattern or not) could be: |
1795 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1796 | ||
1797 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1798 | |
1799 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1800 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1801 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1802 | |
1803 | \1 (backreferences) are turned into $1 | |
1804 | ||
1805 | The structure of the code is | |
1806 | while (there's a character to process) { | |
94def140 TS |
1807 | handle transliteration ranges |
1808 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1809 | skip #-initiated comments in //x patterns | |
1810 | check for embedded arrays | |
02aa26ce NT |
1811 | check for embedded scalars |
1812 | if (backslash) { | |
94def140 TS |
1813 | leave intact backslashes from leaveit (below) |
1814 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1815 | handle string-changing backslashes \l \U \Q \E, etc. |
1816 | switch (what was escaped) { | |
94def140 TS |
1817 | handle \- in a transliteration (becomes a literal -) |
1818 | handle \132 (octal characters) | |
1819 | handle \x15 and \x{1234} (hex characters) | |
1820 | handle \N{name} (named characters) | |
1821 | handle \cV (control characters) | |
1822 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1823 | } (end switch) |
1824 | } (end if backslash) | |
1825 | } (end while character to read) | |
4e553d73 | 1826 | |
02aa26ce NT |
1827 | */ |
1828 | ||
76e3520e | 1829 | STATIC char * |
cea2e8a9 | 1830 | S_scan_const(pTHX_ char *start) |
79072805 | 1831 | { |
97aff369 | 1832 | dVAR; |
3280af22 | 1833 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1834 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1835 | register char *s = start; /* start of the constant */ |
1836 | register char *d = SvPVX(sv); /* destination for copies */ | |
1837 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1838 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1839 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1840 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1841 | UV uv; |
4c3a8340 TS |
1842 | #ifdef EBCDIC |
1843 | UV literal_endpoint = 0; | |
e294cc5d | 1844 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1845 | #endif |
012bcf8d | 1846 | |
2b9d42f0 NIS |
1847 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1848 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1849 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1850 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1851 | } | |
1852 | ||
1853 | ||
79072805 | 1854 | while (s < send || dorange) { |
02aa26ce | 1855 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1856 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1857 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1858 | if (dorange) { |
1ba5c669 JH |
1859 | I32 i; /* current expanded character */ |
1860 | I32 min; /* first character in range */ | |
1861 | I32 max; /* last character in range */ | |
02aa26ce | 1862 | |
e294cc5d JH |
1863 | #ifdef EBCDIC |
1864 | UV uvmax = 0; | |
1865 | #endif | |
1866 | ||
1867 | if (has_utf8 | |
1868 | #ifdef EBCDIC | |
1869 | && !native_range | |
1870 | #endif | |
1871 | ) { | |
9d4ba2ae | 1872 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1873 | char *e = d++; |
1874 | while (e-- > c) | |
1875 | *(e + 1) = *e; | |
25716404 | 1876 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1877 | /* mark the range as done, and continue */ |
1878 | dorange = FALSE; | |
1879 | didrange = TRUE; | |
1880 | continue; | |
1881 | } | |
2b9d42f0 | 1882 | |
95a20fc0 | 1883 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1884 | #ifdef EBCDIC |
1885 | SvGROW(sv, | |
1886 | SvLEN(sv) + (has_utf8 ? | |
1887 | (512 - UTF_CONTINUATION_MARK + | |
1888 | UNISKIP(0x100)) | |
1889 | : 256)); | |
1890 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1891 | * 96 in UTF-8-mod. */ | |
1892 | #else | |
9cbb5ea2 | 1893 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 1894 | #endif |
9cbb5ea2 | 1895 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
1896 | #ifdef EBCDIC |
1897 | if (has_utf8) { | |
1898 | int j; | |
1899 | for (j = 0; j <= 1; j++) { | |
1900 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1901 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1902 | if (j) | |
1903 | min = (U8)uv; | |
1904 | else if (uv < 256) | |
1905 | max = (U8)uv; | |
1906 | else { | |
1907 | max = (U8)0xff; /* only to \xff */ | |
1908 | uvmax = uv; /* \x{100} to uvmax */ | |
1909 | } | |
1910 | d = c; /* eat endpoint chars */ | |
1911 | } | |
1912 | } | |
1913 | else { | |
1914 | #endif | |
1915 | d -= 2; /* eat the first char and the - */ | |
1916 | min = (U8)*d; /* first char in range */ | |
1917 | max = (U8)d[1]; /* last char in range */ | |
1918 | #ifdef EBCDIC | |
1919 | } | |
1920 | #endif | |
8ada0baa | 1921 | |
c2e66d9e | 1922 | if (min > max) { |
01ec43d0 | 1923 | Perl_croak(aTHX_ |
d1573ac7 | 1924 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1925 | (char)min, (char)max); |
c2e66d9e GS |
1926 | } |
1927 | ||
c7f1f016 | 1928 | #ifdef EBCDIC |
4c3a8340 TS |
1929 | if (literal_endpoint == 2 && |
1930 | ((isLOWER(min) && isLOWER(max)) || | |
1931 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1932 | if (isLOWER(min)) { |
1933 | for (i = min; i <= max; i++) | |
1934 | if (isLOWER(i)) | |
db42d148 | 1935 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1936 | } else { |
1937 | for (i = min; i <= max; i++) | |
1938 | if (isUPPER(i)) | |
db42d148 | 1939 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1940 | } |
1941 | } | |
1942 | else | |
1943 | #endif | |
1944 | for (i = min; i <= max; i++) | |
e294cc5d JH |
1945 | #ifdef EBCDIC |
1946 | if (has_utf8) { | |
1947 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
1948 | if (UNI_IS_INVARIANT(ch)) | |
1949 | *d++ = (U8)i; | |
1950 | else { | |
1951 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
1952 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
1953 | } | |
1954 | } | |
1955 | else | |
1956 | #endif | |
1957 | *d++ = (char)i; | |
1958 | ||
1959 | #ifdef EBCDIC | |
1960 | if (uvmax) { | |
1961 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
1962 | if (uvmax > 0x101) | |
1963 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
1964 | if (uvmax > 0x100) | |
1965 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
1966 | } | |
1967 | #endif | |
02aa26ce NT |
1968 | |
1969 | /* mark the range as done, and continue */ | |
79072805 | 1970 | dorange = FALSE; |
01ec43d0 | 1971 | didrange = TRUE; |
4c3a8340 TS |
1972 | #ifdef EBCDIC |
1973 | literal_endpoint = 0; | |
1974 | #endif | |
79072805 | 1975 | continue; |
4e553d73 | 1976 | } |
02aa26ce NT |
1977 | |
1978 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1979 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1980 | if (didrange) { |
1fafa243 | 1981 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1982 | } |
e294cc5d JH |
1983 | if (has_utf8 |
1984 | #ifdef EBCDIC | |
1985 | && !native_range | |
1986 | #endif | |
1987 | ) { | |
25716404 | 1988 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1989 | s++; |
1990 | continue; | |
1991 | } | |
79072805 LW |
1992 | dorange = TRUE; |
1993 | s++; | |
01ec43d0 GS |
1994 | } |
1995 | else { | |
1996 | didrange = FALSE; | |
4c3a8340 TS |
1997 | #ifdef EBCDIC |
1998 | literal_endpoint = 0; | |
e294cc5d | 1999 | native_range = TRUE; |
4c3a8340 | 2000 | #endif |
01ec43d0 | 2001 | } |
79072805 | 2002 | } |
02aa26ce NT |
2003 | |
2004 | /* if we get here, we're not doing a transliteration */ | |
2005 | ||
0f5d15d6 IZ |
2006 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2007 | except for the last char, which will be done separately. */ | |
3280af22 | 2008 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2009 | if (s[2] == '#') { |
e994fd66 | 2010 | while (s+1 < send && *s != ')') |
db42d148 | 2011 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2012 | } |
2013 | else if (s[2] == '{' /* This should match regcomp.c */ | |
2014 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
2015 | { | |
cc6b7395 | 2016 | I32 count = 1; |
0f5d15d6 | 2017 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2018 | char c; |
2019 | ||
d9f97599 GS |
2020 | while (count && (c = *regparse)) { |
2021 | if (c == '\\' && regparse[1]) | |
2022 | regparse++; | |
4e553d73 | 2023 | else if (c == '{') |
cc6b7395 | 2024 | count++; |
4e553d73 | 2025 | else if (c == '}') |
cc6b7395 | 2026 | count--; |
d9f97599 | 2027 | regparse++; |
cc6b7395 | 2028 | } |
e994fd66 | 2029 | if (*regparse != ')') |
5bdf89e7 | 2030 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2031 | while (s < regparse) |
db42d148 | 2032 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2033 | } |
748a9306 | 2034 | } |
02aa26ce NT |
2035 | |
2036 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2037 | else if (*s == '#' && PL_lex_inpat && |
2038 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2039 | while (s+1 < send && *s != '\n') |
db42d148 | 2040 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2041 | } |
02aa26ce | 2042 | |
5d1d4326 | 2043 | /* check for embedded arrays |
da6eedaa | 2044 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2045 | */ |
1749ea0d TS |
2046 | else if (*s == '@' && s[1]) { |
2047 | if (isALNUM_lazy_if(s+1,UTF)) | |
2048 | break; | |
2049 | if (strchr(":'{$", s[1])) | |
2050 | break; | |
2051 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2052 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2053 | } | |
02aa26ce NT |
2054 | |
2055 | /* check for embedded scalars. only stop if we're sure it's a | |
2056 | variable. | |
2057 | */ | |
79072805 | 2058 | else if (*s == '$') { |
3280af22 | 2059 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2060 | break; |
6002328a | 2061 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2062 | break; /* in regexp, $ might be tail anchor */ |
2063 | } | |
02aa26ce | 2064 | |
2b9d42f0 NIS |
2065 | /* End of else if chain - OP_TRANS rejoin rest */ |
2066 | ||
02aa26ce | 2067 | /* backslashes */ |
79072805 LW |
2068 | if (*s == '\\' && s+1 < send) { |
2069 | s++; | |
02aa26ce | 2070 | |
02aa26ce | 2071 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2072 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2073 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2074 | { |
599cee73 | 2075 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2076 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2077 | *--s = '$'; |
2078 | break; | |
2079 | } | |
02aa26ce NT |
2080 | |
2081 | /* string-change backslash escapes */ | |
3280af22 | 2082 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2083 | --s; |
2084 | break; | |
2085 | } | |
cc74c5bd TS |
2086 | /* skip any other backslash escapes in a pattern */ |
2087 | else if (PL_lex_inpat) { | |
2088 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2089 | goto default_action; | |
2090 | } | |
02aa26ce NT |
2091 | |
2092 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2093 | switch (*s) { |
02aa26ce NT |
2094 | |
2095 | /* quoted - in transliterations */ | |
79072805 | 2096 | case '-': |
3280af22 | 2097 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2098 | *d++ = *s++; |
2099 | continue; | |
2100 | } | |
2101 | /* FALL THROUGH */ | |
2102 | default: | |
11b8faa4 | 2103 | { |
86f97054 | 2104 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2105 | ckWARN(WARN_MISC)) |
9014280d | 2106 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2107 | "Unrecognized escape \\%c passed through", |
2108 | *s); | |
11b8faa4 | 2109 | /* default action is to copy the quoted character */ |
f9a63242 | 2110 | goto default_action; |
11b8faa4 | 2111 | } |
02aa26ce NT |
2112 | |
2113 | /* \132 indicates an octal constant */ | |
79072805 LW |
2114 | case '0': case '1': case '2': case '3': |
2115 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2116 | { |
53305cf1 NC |
2117 | I32 flags = 0; |
2118 | STRLEN len = 3; | |
2119 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2120 | s += len; |
2121 | } | |
012bcf8d | 2122 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2123 | |
2124 | /* \x24 indicates a hex constant */ | |
79072805 | 2125 | case 'x': |
a0ed51b3 LW |
2126 | ++s; |
2127 | if (*s == '{') { | |
9d4ba2ae | 2128 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2129 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2130 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2131 | STRLEN len; |
355860ce | 2132 | |
53305cf1 | 2133 | ++s; |
adaeee49 | 2134 | if (!e) { |
a0ed51b3 | 2135 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2136 | continue; |
ba210ebe | 2137 | } |
53305cf1 NC |
2138 | len = e - s; |
2139 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2140 | s = e + 1; |
a0ed51b3 LW |
2141 | } |
2142 | else { | |
ba210ebe | 2143 | { |
53305cf1 | 2144 | STRLEN len = 2; |
a4c04bdc | 2145 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2146 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2147 | s += len; |
2148 | } | |
012bcf8d GS |
2149 | } |
2150 | ||
2151 | NUM_ESCAPE_INSERT: | |
2152 | /* Insert oct or hex escaped character. | |
301d3d20 | 2153 | * There will always enough room in sv since such |
db42d148 | 2154 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2155 | * they can end up as. */ |
ba7cea30 | 2156 | |
c7f1f016 NIS |
2157 | /* We need to map to chars to ASCII before doing the tests |
2158 | to cover EBCDIC | |
2159 | */ | |
c4d5f83a | 2160 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2161 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2162 | /* Might need to recode whatever we have |
2163 | * accumulated so far if it contains any | |
2164 | * hibit chars. | |
2165 | * | |
2166 | * (Can't we keep track of that and avoid | |
2167 | * this rescan? --jhi) | |
012bcf8d | 2168 | */ |
c7f1f016 | 2169 | int hicount = 0; |
63cd0674 NIS |
2170 | U8 *c; |
2171 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2172 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2173 | hicount++; |
db42d148 | 2174 | } |
012bcf8d | 2175 | } |
63cd0674 | 2176 | if (hicount) { |
9d4ba2ae | 2177 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2178 | U8 *src, *dst; |
2179 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2180 | src = (U8 *)d - 1; | |
2181 | dst = src+hicount; | |
2182 | d += hicount; | |
cfd0369c | 2183 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2184 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2185 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2186 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2187 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2188 | } |
2189 | else { | |
63cd0674 | 2190 | *dst-- = *src; |
012bcf8d | 2191 | } |
c7f1f016 | 2192 | src--; |
012bcf8d GS |
2193 | } |
2194 | } | |
2195 | } | |
2196 | ||
9aa983d2 | 2197 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2198 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2199 | has_utf8 = TRUE; |
f9a63242 JH |
2200 | if (PL_lex_inwhat == OP_TRANS && |
2201 | PL_sublex_info.sub_op) { | |
2202 | PL_sublex_info.sub_op->op_private |= | |
2203 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2204 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2205 | } |
e294cc5d JH |
2206 | #ifdef EBCDIC |
2207 | if (uv > 255 && !dorange) | |
2208 | native_range = FALSE; | |
2209 | #endif | |
012bcf8d | 2210 | } |
a0ed51b3 | 2211 | else { |
012bcf8d | 2212 | *d++ = (char)uv; |
a0ed51b3 | 2213 | } |
012bcf8d GS |
2214 | } |
2215 | else { | |
c4d5f83a | 2216 | *d++ = (char) uv; |
a0ed51b3 | 2217 | } |
79072805 | 2218 | continue; |
02aa26ce | 2219 | |
b239daa5 | 2220 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2221 | case 'N': |
55eda711 | 2222 | ++s; |
423cee85 JH |
2223 | if (*s == '{') { |
2224 | char* e = strchr(s, '}'); | |
155aba94 | 2225 | SV *res; |
423cee85 | 2226 | STRLEN len; |
cfd0369c | 2227 | const char *str; |
fc8cd66c | 2228 | SV *type; |
4e553d73 | 2229 | |
423cee85 | 2230 | if (!e) { |
5777a3f7 | 2231 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2232 | e = s - 1; |
2233 | goto cont_scan; | |
2234 | } | |
dbc0d4f2 JH |
2235 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2236 | /* \N{U+...} */ | |
2237 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2238 | PERL_SCAN_DISALLOW_PREFIX; | |
2239 | s += 3; | |
2240 | len = e - s; | |
2241 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2242 | if ( e > s && len != (STRLEN)(e - s) ) { |
2243 | uv = 0xFFFD; | |
fc8cd66c | 2244 | } |
dbc0d4f2 JH |
2245 | s = e + 1; |
2246 | goto NUM_ESCAPE_INSERT; | |
2247 | } | |
55eda711 | 2248 | res = newSVpvn(s + 1, e - s - 1); |
fc8cd66c | 2249 | type = newSVpvn(s - 2,e - s + 3); |
bd61b366 | 2250 | res = new_constant( NULL, 0, "charnames", |
fc8cd66c YO |
2251 | res, NULL, SvPVX(type) ); |
2252 | SvREFCNT_dec(type); | |
f9a63242 JH |
2253 | if (has_utf8) |
2254 | sv_utf8_upgrade(res); | |
cfd0369c | 2255 | str = SvPV_const(res,len); |
1c47067b JH |
2256 | #ifdef EBCDIC_NEVER_MIND |
2257 | /* charnames uses pack U and that has been | |
2258 | * recently changed to do the below uni->native | |
2259 | * mapping, so this would be redundant (and wrong, | |
2260 | * the code point would be doubly converted). | |
2261 | * But leave this in just in case the pack U change | |
2262 | * gets revoked, but the semantics is still | |
2263 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2264 | { |
cfd0369c | 2265 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2266 | |
2267 | if (uv < 0x100) { | |
89ebb4a3 | 2268 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2269 | |
2270 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2271 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2272 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2273 | } |
2274 | } | |
2275 | #endif | |
89491803 | 2276 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2277 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2278 | SvCUR_set(sv, d - ostart); |
2279 | SvPOK_on(sv); | |
e4f3eed8 | 2280 | *d = '\0'; |
f08d6ad9 | 2281 | sv_utf8_upgrade(sv); |
d2f449dd | 2282 | /* this just broke our allocation above... */ |
eb160463 | 2283 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2284 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2285 | has_utf8 = TRUE; |
f08d6ad9 | 2286 | } |
eb160463 | 2287 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2288 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2289 | |
8973db79 | 2290 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2291 | d = SvPVX(sv) + (d - odest); |
2292 | } | |
e294cc5d JH |
2293 | #ifdef EBCDIC |
2294 | if (!dorange) | |
2295 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2296 | #endif | |
423cee85 JH |
2297 | Copy(str, d, len, char); |
2298 | d += len; | |
2299 | SvREFCNT_dec(res); | |
2300 | cont_scan: | |
2301 | s = e + 1; | |
2302 | } | |
2303 | else | |
5777a3f7 | 2304 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2305 | continue; |
2306 | ||
02aa26ce | 2307 | /* \c is a control character */ |
79072805 LW |
2308 | case 'c': |
2309 | s++; | |
961ce445 | 2310 | if (s < send) { |
ba210ebe | 2311 | U8 c = *s++; |
c7f1f016 NIS |
2312 | #ifdef EBCDIC |
2313 | if (isLOWER(c)) | |
2314 | c = toUPPER(c); | |
2315 | #endif | |
db42d148 | 2316 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2317 | } |
961ce445 RGS |
2318 | else { |
2319 | yyerror("Missing control char name in \\c"); | |
2320 | } | |
79072805 | 2321 | continue; |
02aa26ce NT |
2322 | |
2323 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2324 | case 'b': |
db42d148 | 2325 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2326 | break; |
2327 | case 'n': | |
db42d148 | 2328 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2329 | break; |
2330 | case 'r': | |
db42d148 | 2331 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2332 | break; |
2333 | case 'f': | |
db42d148 | 2334 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2335 | break; |
2336 | case 't': | |
db42d148 | 2337 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2338 | break; |
34a3fe2a | 2339 | case 'e': |
db42d148 | 2340 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2341 | break; |
2342 | case 'a': | |
db42d148 | 2343 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2344 | break; |
02aa26ce NT |
2345 | } /* end switch */ |
2346 | ||
79072805 LW |
2347 | s++; |
2348 | continue; | |
02aa26ce | 2349 | } /* end if (backslash) */ |
4c3a8340 TS |
2350 | #ifdef EBCDIC |
2351 | else | |
2352 | literal_endpoint++; | |
2353 | #endif | |
02aa26ce | 2354 | |
f9a63242 | 2355 | default_action: |
2b9d42f0 NIS |
2356 | /* If we started with encoded form, or already know we want it |
2357 | and then encode the next character */ | |
2358 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2359 | STRLEN len = 1; | |
5f66b61c AL |
2360 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2361 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2362 | s += len; |
2363 | if (need > len) { | |
2364 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2365 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2366 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2367 | } | |
5f66b61c | 2368 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2369 | has_utf8 = TRUE; |
e294cc5d JH |
2370 | #ifdef EBCDIC |
2371 | if (uv > 255 && !dorange) | |
2372 | native_range = FALSE; | |
2373 | #endif | |
2b9d42f0 NIS |
2374 | } |
2375 | else { | |
2376 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2377 | } | |
02aa26ce NT |
2378 | } /* while loop to process each character */ |
2379 | ||
2380 | /* terminate the string and set up the sv */ | |
79072805 | 2381 | *d = '\0'; |
95a20fc0 | 2382 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2383 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2384 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2385 | |
79072805 | 2386 | SvPOK_on(sv); |
9f4817db | 2387 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2388 | sv_recode_to_utf8(sv, PL_encoding); |
2389 | if (SvUTF8(sv)) | |
2390 | has_utf8 = TRUE; | |
9f4817db | 2391 | } |
2b9d42f0 | 2392 | if (has_utf8) { |
7e2040f0 | 2393 | SvUTF8_on(sv); |
2b9d42f0 | 2394 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2395 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2396 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2397 | } | |
2398 | } | |
79072805 | 2399 | |
02aa26ce | 2400 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2401 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2402 | SvPV_shrink_to_cur(sv); |
79072805 | 2403 | } |
02aa26ce | 2404 | |
9b599b2a | 2405 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2406 | if (s > PL_bufptr) { |
2407 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
10edeb5d JH |
2408 | sv = new_constant(start, s - start, |
2409 | (const char *)(PL_lex_inpat ? "qr" : "q"), | |
a0714e2c | 2410 | sv, NULL, |
10edeb5d JH |
2411 | (const char *) |
2412 | (( PL_lex_inwhat == OP_TRANS | |
2413 | ? "tr" | |
2414 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) | |
2415 | ? "s" | |
2416 | : "qq")))); | |
79072805 | 2417 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2418 | } else |
8990e307 | 2419 | SvREFCNT_dec(sv); |
79072805 LW |
2420 | return s; |
2421 | } | |
2422 | ||
ffb4593c NT |
2423 | /* S_intuit_more |
2424 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2425 | * FALSE otherwise. | |
ffb4593c NT |
2426 | * |
2427 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2428 | * | |
2429 | * ->[ and ->{ return TRUE | |
2430 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2431 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2432 | * if we're in a pattern and the first char is a { | |
2433 | * {4,5} (any digits around the comma) returns FALSE | |
2434 | * if we're in a pattern and the first char is a [ | |
2435 | * [] returns FALSE | |
2436 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2437 | * character class or not. It has to deal with things like | |
2438 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2439 | * anything else returns TRUE | |
2440 | */ | |
2441 | ||
9cbb5ea2 GS |
2442 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2443 | ||
76e3520e | 2444 | STATIC int |
cea2e8a9 | 2445 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2446 | { |
97aff369 | 2447 | dVAR; |
3280af22 | 2448 | if (PL_lex_brackets) |
79072805 LW |
2449 | return TRUE; |
2450 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2451 | return TRUE; | |
2452 | if (*s != '{' && *s != '[') | |
2453 | return FALSE; | |
3280af22 | 2454 | if (!PL_lex_inpat) |
79072805 LW |
2455 | return TRUE; |
2456 | ||
2457 | /* In a pattern, so maybe we have {n,m}. */ | |
2458 | if (*s == '{') { | |
2459 | s++; | |
2460 | if (!isDIGIT(*s)) | |
2461 | return TRUE; | |
2462 | while (isDIGIT(*s)) | |
2463 | s++; | |
2464 | if (*s == ',') | |
2465 | s++; | |
2466 | while (isDIGIT(*s)) | |
2467 | s++; | |
2468 | if (*s == '}') | |
2469 | return FALSE; | |
2470 | return TRUE; | |
2471 | ||
2472 | } | |
2473 | ||
2474 | /* On the other hand, maybe we have a character class */ | |
2475 | ||
2476 | s++; | |
2477 | if (*s == ']' || *s == '^') | |
2478 | return FALSE; | |
2479 | else { | |
ffb4593c | 2480 | /* this is terrifying, and it works */ |
79072805 LW |
2481 | int weight = 2; /* let's weigh the evidence */ |
2482 | char seen[256]; | |
f27ffc4a | 2483 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2484 | const char * const send = strchr(s,']'); |
3280af22 | 2485 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2486 | |
2487 | if (!send) /* has to be an expression */ | |
2488 | return TRUE; | |
2489 | ||
2490 | Zero(seen,256,char); | |
2491 | if (*s == '$') | |
2492 | weight -= 3; | |
2493 | else if (isDIGIT(*s)) { | |
2494 | if (s[1] != ']') { | |
2495 | if (isDIGIT(s[1]) && s[2] == ']') | |
2496 | weight -= 10; | |
2497 | } | |
2498 | else | |
2499 | weight -= 100; | |
2500 | } | |
2501 | for (; s < send; s++) { | |
2502 | last_un_char = un_char; | |
2503 | un_char = (unsigned char)*s; | |
2504 | switch (*s) { | |
2505 | case '@': | |
2506 | case '&': | |
2507 | case '$': | |
2508 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2509 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2510 | int len; |
8903cb82 | 2511 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2512 | len = (int)strlen(tmpbuf); |
2513 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2514 | weight -= 100; |
2515 | else | |
2516 | weight -= 10; | |
2517 | } | |
2518 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2519 | strchr("[#!%*<>()-=",s[1])) { |
2520 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2521 | weight -= 10; |
2522 | else | |
2523 | weight -= 1; | |
2524 | } | |
2525 | break; | |
2526 | case '\\': | |
2527 | un_char = 254; | |
2528 | if (s[1]) { | |
93a17b20 | 2529 | if (strchr("wds]",s[1])) |
79072805 | 2530 | weight += 100; |
10edeb5d | 2531 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2532 | weight += 1; |
93a17b20 | 2533 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2534 | weight += 40; |
2535 | else if (isDIGIT(s[1])) { | |
2536 | weight += 40; | |
2537 | while (s[1] && isDIGIT(s[1])) | |
2538 | s++; | |
2539 | } | |
2540 | } | |
2541 | else | |
2542 | weight += 100; | |
2543 | break; | |
2544 | case '-': | |
2545 | if (s[1] == '\\') | |
2546 | weight += 50; | |
93a17b20 | 2547 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2548 | weight += 30; |
93a17b20 | 2549 | if (strchr("zZ79~",s[1])) |
79072805 | 2550 | weight += 30; |
f27ffc4a GS |
2551 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2552 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2553 | break; |
2554 | default: | |
3792a11b NC |
2555 | if (!isALNUM(last_un_char) |
2556 | && !(last_un_char == '$' || last_un_char == '@' | |
2557 | || last_un_char == '&') | |
2558 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2559 | char *d = tmpbuf; |
2560 | while (isALPHA(*s)) | |
2561 | *d++ = *s++; | |
2562 | *d = '\0'; | |
5458a98a | 2563 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2564 | weight -= 150; |
2565 | } | |
2566 | if (un_char == last_un_char + 1) | |
2567 | weight += 5; | |
2568 | weight -= seen[un_char]; | |
2569 | break; | |
2570 | } | |
2571 | seen[un_char]++; | |
2572 | } | |
2573 | if (weight >= 0) /* probably a character class */ | |
2574 | return FALSE; | |
2575 | } | |
2576 | ||
2577 | return TRUE; | |
2578 | } | |
ffed7fef | 2579 | |
ffb4593c NT |
2580 | /* |
2581 | * S_intuit_method | |
2582 | * | |
2583 | * Does all the checking to disambiguate | |
2584 | * foo bar | |
2585 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2586 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2587 | * | |
2588 | * First argument is the stuff after the first token, e.g. "bar". | |
2589 | * | |
2590 | * Not a method if bar is a filehandle. | |
2591 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2592 | * Not a method if it's really "Foo $bar" | |
2593 | * Method if it's "foo $bar" | |
2594 | * Not a method if it's really "print foo $bar" | |
2595 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2596 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2597 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2598 | * => |
2599 | */ | |
2600 | ||
76e3520e | 2601 | STATIC int |
62d55b22 | 2602 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2603 | { |
97aff369 | 2604 | dVAR; |
a0d0e21e | 2605 | char *s = start + (*start == '$'); |
3280af22 | 2606 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2607 | STRLEN len; |
2608 | GV* indirgv; | |
5db06880 NC |
2609 | #ifdef PERL_MAD |
2610 | int soff; | |
2611 | #endif | |
a0d0e21e LW |
2612 | |
2613 | if (gv) { | |
62d55b22 | 2614 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2615 | return 0; |
62d55b22 NC |
2616 | if (cv) { |
2617 | if (SvPOK(cv)) { | |
2618 | const char *proto = SvPVX_const(cv); | |
2619 | if (proto) { | |
2620 | if (*proto == ';') | |
2621 | proto++; | |
2622 | if (*proto == '*') | |
2623 | return 0; | |
2624 | } | |
b6c543e3 IZ |
2625 | } |
2626 | } else | |
c35e046a | 2627 | gv = NULL; |
a0d0e21e | 2628 | } |
8903cb82 | 2629 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2630 | /* start is the beginning of the possible filehandle/object, |
2631 | * and s is the end of it | |
2632 | * tmpbuf is a copy of it | |
2633 | */ | |
2634 | ||
a0d0e21e | 2635 | if (*start == '$') { |
3280af22 | 2636 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2637 | return 0; |
5db06880 NC |
2638 | #ifdef PERL_MAD |
2639 | len = start - SvPVX(PL_linestr); | |
2640 | #endif | |
29595ff2 | 2641 | s = PEEKSPACE(s); |
f0092767 | 2642 | #ifdef PERL_MAD |
5db06880 NC |
2643 | start = SvPVX(PL_linestr) + len; |
2644 | #endif | |
3280af22 NIS |
2645 | PL_bufptr = start; |
2646 | PL_expect = XREF; | |
a0d0e21e LW |
2647 | return *s == '(' ? FUNCMETH : METHOD; |
2648 | } | |
5458a98a | 2649 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2650 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2651 | len -= 2; | |
2652 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2653 | #ifdef PERL_MAD |
2654 | soff = s - SvPVX(PL_linestr); | |
2655 | #endif | |
c3e0f903 GS |
2656 | goto bare_package; |
2657 | } | |
90e5519e | 2658 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2659 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2660 | return 0; |
2661 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2662 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
5db06880 NC |
2663 | #ifdef PERL_MAD |
2664 | soff = s - SvPVX(PL_linestr); | |
2665 | #endif | |
29595ff2 | 2666 | s = PEEKSPACE(s); |
3280af22 | 2667 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2668 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2669 | bare_package: |
cd81e915 | 2670 | start_force(PL_curforce); |
9ded7720 | 2671 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2672 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2673 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2674 | if (PL_madskills) |
2675 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2676 | PL_expect = XTERM; |
a0d0e21e | 2677 | force_next(WORD); |
3280af22 | 2678 | PL_bufptr = s; |
5db06880 NC |
2679 | #ifdef PERL_MAD |
2680 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2681 | #endif | |
a0d0e21e LW |
2682 | return *s == '(' ? FUNCMETH : METHOD; |
2683 | } | |
2684 | } | |
2685 | return 0; | |
2686 | } | |
2687 | ||
ffb4593c NT |
2688 | /* |
2689 | * S_incl_perldb | |
2690 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2691 | * is set, it will return the contents of that, otherwise a | |
2692 | * compile-time require of perl5db.pl. | |
2693 | */ | |
2694 | ||
bfed75c6 | 2695 | STATIC const char* |
cea2e8a9 | 2696 | S_incl_perldb(pTHX) |
a0d0e21e | 2697 | { |
97aff369 | 2698 | dVAR; |
3280af22 | 2699 | if (PL_perldb) { |
9d4ba2ae | 2700 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2701 | |
2702 | if (pdb) | |
2703 | return pdb; | |
93189314 | 2704 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2705 | return "BEGIN { require 'perl5db.pl' }"; |
2706 | } | |
2707 | return ""; | |
2708 | } | |
2709 | ||
2710 | ||
16d20bd9 | 2711 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2712 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2713 | * Note that the filter function only applies to the current source file |
2714 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2715 | * | |
2716 | * The datasv parameter (which may be NULL) can be used to pass | |
2717 | * private data to this instance of the filter. The filter function | |
2718 | * can recover the SV using the FILTER_DATA macro and use it to | |
2719 | * store private buffers and state information. | |
2720 | * | |
2721 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2722 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2723 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2724 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2725 | * private use must be set using malloc'd pointers. | |
2726 | */ | |
16d20bd9 AD |
2727 | |
2728 | SV * | |
864dbfa3 | 2729 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2730 | { |
97aff369 | 2731 | dVAR; |
f4c556ac | 2732 | if (!funcp) |
a0714e2c | 2733 | return NULL; |
f4c556ac | 2734 | |
3280af22 NIS |
2735 | if (!PL_rsfp_filters) |
2736 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2737 | if (!datasv) |
561b68a9 | 2738 | datasv = newSV(0); |
862a34c6 | 2739 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2740 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2741 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2742 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2743 | FPTR2DPTR(void *, IoANY(datasv)), |
2744 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2745 | av_unshift(PL_rsfp_filters, 1); |
2746 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2747 | return(datasv); |
2748 | } | |
4e553d73 | 2749 | |
16d20bd9 AD |
2750 | |
2751 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2752 | void |
864dbfa3 | 2753 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2754 | { |
97aff369 | 2755 | dVAR; |
e0c19803 | 2756 | SV *datasv; |
24801a4b | 2757 | |
33073adb | 2758 | #ifdef DEBUGGING |
55662e27 JH |
2759 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2760 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2761 | #endif |
3280af22 | 2762 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2763 | return; |
2764 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2765 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2766 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2767 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2768 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2769 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2770 | |
16d20bd9 AD |
2771 | return; |
2772 | } | |
2773 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2774 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2775 | } |
2776 | ||
2777 | ||
1de9afcd RGS |
2778 | /* Invoke the idxth filter function for the current rsfp. */ |
2779 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2780 | I32 |
864dbfa3 | 2781 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2782 | { |
97aff369 | 2783 | dVAR; |
16d20bd9 AD |
2784 | filter_t funcp; |
2785 | SV *datasv = NULL; | |
f482118e NC |
2786 | /* This API is bad. It should have been using unsigned int for maxlen. |
2787 | Not sure if we want to change the API, but if not we should sanity | |
2788 | check the value here. */ | |
39cd7a59 NC |
2789 | const unsigned int correct_length |
2790 | = maxlen < 0 ? | |
2791 | #ifdef PERL_MICRO | |
2792 | 0x7FFFFFFF | |
2793 | #else | |
2794 | INT_MAX | |
2795 | #endif | |
2796 | : maxlen; | |
e50aee73 | 2797 | |
3280af22 | 2798 | if (!PL_rsfp_filters) |
16d20bd9 | 2799 | return -1; |
1de9afcd | 2800 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2801 | /* Provide a default input filter to make life easy. */ |
2802 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2803 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2804 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2805 | if (correct_length) { |
16d20bd9 AD |
2806 | /* Want a block */ |
2807 | int len ; | |
f54cb97a | 2808 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2809 | |
2810 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2811 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2812 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2813 | correct_length)) <= 0) { | |
3280af22 | 2814 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2815 | return -1; /* error */ |
2816 | else | |
2817 | return 0 ; /* end of file */ | |
2818 | } | |
16d20bd9 AD |
2819 | SvCUR_set(buf_sv, old_len + len) ; |
2820 | } else { | |
2821 | /* Want a line */ | |
3280af22 NIS |
2822 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2823 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2824 | return -1; /* error */ |
2825 | else | |
2826 | return 0 ; /* end of file */ | |
2827 | } | |
16d20bd9 AD |
2828 | } |
2829 | return SvCUR(buf_sv); | |
2830 | } | |
2831 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2832 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2833 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2834 | "filter_read %d: skipped (filter deleted)\n", | |
2835 | idx)); | |
f482118e | 2836 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2837 | } |
2838 | /* Get function pointer hidden within datasv */ | |
8141890a | 2839 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2840 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2841 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2842 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2843 | /* Call function. The function is expected to */ |
2844 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2845 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2846 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2847 | } |
2848 | ||
76e3520e | 2849 | STATIC char * |
cea2e8a9 | 2850 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2851 | { |
97aff369 | 2852 | dVAR; |
c39cd008 | 2853 | #ifdef PERL_CR_FILTER |
3280af22 | 2854 | if (!PL_rsfp_filters) { |
c39cd008 | 2855 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2856 | } |
2857 | #endif | |
3280af22 | 2858 | if (PL_rsfp_filters) { |
55497cff | 2859 | if (!append) |
2860 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2861 | if (FILTER_READ(0, sv, 0) > 0) |
2862 | return ( SvPVX(sv) ) ; | |
2863 | else | |
bd61b366 | 2864 | return NULL ; |
16d20bd9 | 2865 | } |
9d116dd7 | 2866 | else |
fd049845 | 2867 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2868 | } |
2869 | ||
01ec43d0 | 2870 | STATIC HV * |
7fc63493 | 2871 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2872 | { |
97aff369 | 2873 | dVAR; |
def3634b GS |
2874 | GV *gv; |
2875 | ||
01ec43d0 | 2876 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2877 | return PL_curstash; |
2878 | ||
2879 | if (len > 2 && | |
2880 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2881 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2882 | { |
2883 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2884 | } |
2885 | ||
2886 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2887 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2888 | if (gv && GvCV(gv)) { | |
2889 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2890 | if (sv) | |
83003860 | 2891 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2892 | } |
2893 | ||
2894 | return gv_stashpv(pkgname, FALSE); | |
2895 | } | |
a0d0e21e | 2896 | |
e3f73d4e RGS |
2897 | /* |
2898 | * S_readpipe_override | |
2899 | * Check whether readpipe() is overriden, and generates the appropriate | |
2900 | * optree, provided sublex_start() is called afterwards. | |
2901 | */ | |
2902 | STATIC void | |
1d51329b | 2903 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
2904 | { |
2905 | GV **gvp; | |
2906 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
2907 | yylval.ival = OP_BACKTICK; | |
2908 | if ((gv_readpipe | |
2909 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
2910 | || | |
2911 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
2912 | && (gv_readpipe = *gvp) != (GV*)&PL_sv_undef | |
2913 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) | |
2914 | { | |
2915 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2916 | append_elem(OP_LIST, | |
2917 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
2918 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
2919 | } | |
2920 | else { | |
2921 | set_csh(); | |
2922 | } | |
2923 | } | |
2924 | ||
5db06880 NC |
2925 | #ifdef PERL_MAD |
2926 | /* | |
2927 | * Perl_madlex | |
2928 | * The intent of this yylex wrapper is to minimize the changes to the | |
2929 | * tokener when we aren't interested in collecting madprops. It remains | |
2930 | * to be seen how successful this strategy will be... | |
2931 | */ | |
2932 | ||
2933 | int | |
2934 | Perl_madlex(pTHX) | |
2935 | { | |
2936 | int optype; | |
2937 | char *s = PL_bufptr; | |
2938 | ||
cd81e915 NC |
2939 | /* make sure PL_thiswhite is initialized */ |
2940 | PL_thiswhite = 0; | |
2941 | PL_thismad = 0; | |
5db06880 | 2942 | |
cd81e915 | 2943 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2944 | if (PL_pending_ident) |
2945 | return S_pending_ident(aTHX); | |
2946 | ||
2947 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2948 | if (!PL_lasttoke && PL_nextwhite) { |
2949 | PL_thiswhite = PL_nextwhite; | |
2950 | PL_nextwhite = 0; | |
5db06880 NC |
2951 | } |
2952 | ||
2953 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2954 | PL_realtokenstart = -1; |
2955 | PL_thistoken = 0; | |
5db06880 NC |
2956 | optype = yylex(); |
2957 | s = PL_bufptr; | |
cd81e915 | 2958 | assert(PL_curforce < 0); |
5db06880 | 2959 | |
cd81e915 NC |
2960 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
2961 | if (!PL_thistoken) { | |
2962 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 2963 | PL_thistoken = newSVpvs(""); |
5db06880 | 2964 | else { |
c35e046a | 2965 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 2966 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
2967 | } |
2968 | } | |
cd81e915 NC |
2969 | if (PL_thismad) /* install head */ |
2970 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
2971 | } |
2972 | ||
2973 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
2974 | if (optype == ')' && PL_endwhite) { |
2975 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
2976 | } |
2977 | ||
cd81e915 | 2978 | if (!PL_thismad) { |
5db06880 NC |
2979 | |
2980 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
2981 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
2982 | sv_free(PL_thistoken); | |
2983 | PL_thistoken = 0; | |
5db06880 NC |
2984 | return 0; |
2985 | } | |
2986 | ||
2987 | /* put off final whitespace till peg */ | |
2988 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
2989 | PL_nextwhite = PL_thiswhite; |
2990 | PL_thiswhite = 0; | |
5db06880 | 2991 | } |
cd81e915 NC |
2992 | else if (PL_thisopen) { |
2993 | CURMAD('q', PL_thisopen); | |
2994 | if (PL_thistoken) | |
2995 | sv_free(PL_thistoken); | |
2996 | PL_thistoken = 0; | |
5db06880 NC |
2997 | } |
2998 | else { | |
2999 | /* Store actual token text as madprop X */ | |
cd81e915 | 3000 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3001 | } |
3002 | ||
cd81e915 | 3003 | if (PL_thiswhite) { |
5db06880 | 3004 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3005 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3006 | } |
3007 | ||
cd81e915 | 3008 | if (PL_thisstuff) { |
5db06880 | 3009 | /* add quoted material as madprop = */ |
cd81e915 | 3010 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3011 | } |
3012 | ||
cd81e915 | 3013 | if (PL_thisclose) { |
5db06880 | 3014 | /* add terminating quote as madprop Q */ |
cd81e915 | 3015 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3016 | } |
3017 | } | |
3018 | ||
3019 | /* special processing based on optype */ | |
3020 | ||
3021 | switch (optype) { | |
3022 | ||
3023 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3024 | case WORD: | |
3025 | case METHOD: | |
3026 | case FUNCMETH: | |
3027 | case THING: | |
3028 | case PMFUNC: | |
3029 | case PRIVATEREF: | |
3030 | case FUNC0SUB: | |
3031 | case UNIOPSUB: | |
3032 | case LSTOPSUB: | |
3033 | if (yylval.opval) | |
cd81e915 NC |
3034 | append_madprops(PL_thismad, yylval.opval, 0); |
3035 | PL_thismad = 0; | |
5db06880 NC |
3036 | return optype; |
3037 | ||
3038 | /* fake EOF */ | |
3039 | case 0: | |
3040 | optype = PEG; | |
cd81e915 NC |
3041 | if (PL_endwhite) { |
3042 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3043 | PL_endwhite = 0; | |
5db06880 NC |
3044 | } |
3045 | break; | |
3046 | ||
3047 | case ']': | |
3048 | case '}': | |
cd81e915 | 3049 | if (PL_faketokens) |
5db06880 NC |
3050 | break; |
3051 | /* remember any fake bracket that lexer is about to discard */ | |
3052 | if (PL_lex_brackets == 1 && | |
3053 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3054 | { | |
3055 | s = PL_bufptr; | |
3056 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3057 | s++; | |
3058 | if (*s == '}') { | |
cd81e915 NC |
3059 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3060 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3061 | PL_thiswhite = 0; | |
5db06880 NC |
3062 | PL_bufptr = s - 1; |
3063 | break; /* don't bother looking for trailing comment */ | |
3064 | } | |
3065 | else | |
3066 | s = PL_bufptr; | |
3067 | } | |
3068 | if (optype == ']') | |
3069 | break; | |
3070 | /* FALLTHROUGH */ | |
3071 | ||
3072 | /* attach a trailing comment to its statement instead of next token */ | |
3073 | case ';': | |
cd81e915 | 3074 | if (PL_faketokens) |
5db06880 NC |
3075 | break; |
3076 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3077 | s = PL_bufptr; | |
3078 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3079 | s++; | |
3080 | if (*s == '\n' || *s == '#') { | |
3081 | while (s < PL_bufend && *s != '\n') | |
3082 | s++; | |
3083 | if (s < PL_bufend) | |
3084 | s++; | |
cd81e915 NC |
3085 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3086 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3087 | PL_thiswhite = 0; | |
5db06880 NC |
3088 | PL_bufptr = s; |
3089 | } | |
3090 | } | |
3091 | break; | |
3092 | ||
3093 | /* pval */ | |
3094 | case LABEL: | |
3095 | break; | |
3096 | ||
3097 | /* ival */ | |
3098 | default: | |
3099 | break; | |
3100 | ||
3101 | } | |
3102 | ||
3103 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
3104 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
3105 | PL_thismad = 0; | |
5db06880 NC |
3106 | return optype; |
3107 | } | |
3108 | #endif | |
3109 | ||
468aa647 | 3110 | STATIC char * |
cc6ed77d | 3111 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3112 | dVAR; |
468aa647 RGS |
3113 | if (PL_expect != XSTATE) |
3114 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3115 | is_use ? "use" : "no")); | |
29595ff2 | 3116 | s = SKIPSPACE1(s); |
468aa647 RGS |
3117 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3118 | s = force_version(s, TRUE); | |
29595ff2 | 3119 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3120 | start_force(PL_curforce); |
9ded7720 | 3121 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3122 | force_next(WORD); |
3123 | } | |
3124 | else if (*s == 'v') { | |
3125 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3126 | s = force_version(s, FALSE); | |
3127 | } | |
3128 | } | |
3129 | else { | |
3130 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3131 | s = force_version(s, FALSE); | |
3132 | } | |
3133 | yylval.ival = is_use; | |
3134 | return s; | |
3135 | } | |
748a9306 | 3136 | #ifdef DEBUGGING |
27da23d5 | 3137 | static const char* const exp_name[] = |
09bef843 | 3138 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3139 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3140 | }; |
748a9306 | 3141 | #endif |
463ee0b2 | 3142 | |
02aa26ce NT |
3143 | /* |
3144 | yylex | |
3145 | ||
3146 | Works out what to call the token just pulled out of the input | |
3147 | stream. The yacc parser takes care of taking the ops we return and | |
3148 | stitching them into a tree. | |
3149 | ||
3150 | Returns: | |
3151 | PRIVATEREF | |
3152 | ||
3153 | Structure: | |
3154 | if read an identifier | |
3155 | if we're in a my declaration | |
3156 | croak if they tried to say my($foo::bar) | |
3157 | build the ops for a my() declaration | |
3158 | if it's an access to a my() variable | |
3159 | are we in a sort block? | |
3160 | croak if my($a); $a <=> $b | |
3161 | build ops for access to a my() variable | |
3162 | if in a dq string, and they've said @foo and we can't find @foo | |
3163 | croak | |
3164 | build ops for a bareword | |
3165 | if we already built the token before, use it. | |
3166 | */ | |
3167 | ||
20141f0e | 3168 | |
dba4d153 JH |
3169 | #ifdef __SC__ |
3170 | #pragma segment Perl_yylex | |
3171 | #endif | |
dba4d153 | 3172 | int |
dba4d153 | 3173 | Perl_yylex(pTHX) |
20141f0e | 3174 | { |
97aff369 | 3175 | dVAR; |
3afc138a | 3176 | register char *s = PL_bufptr; |
378cc40b | 3177 | register char *d; |
463ee0b2 | 3178 | STRLEN len; |
aa7440fb | 3179 | bool bof = FALSE; |
a687059c | 3180 | |
10edeb5d JH |
3181 | /* orig_keyword, gvp, and gv are initialized here because |
3182 | * jump to the label just_a_word_zero can bypass their | |
3183 | * initialization later. */ | |
3184 | I32 orig_keyword = 0; | |
3185 | GV *gv = NULL; | |
3186 | GV **gvp = NULL; | |
3187 | ||
bbf60fe6 | 3188 | DEBUG_T( { |
396482e1 | 3189 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3190 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3191 | (IV)CopLINE(PL_curcop), | |
3192 | lex_state_names[PL_lex_state], | |
3193 | exp_name[PL_expect], | |
3194 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3195 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3196 | } ); |
02aa26ce | 3197 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3198 | if (PL_pending_ident) |
bbf60fe6 | 3199 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3200 | |
02aa26ce NT |
3201 | /* no identifier pending identification */ |
3202 | ||
3280af22 | 3203 | switch (PL_lex_state) { |
79072805 LW |
3204 | #ifdef COMMENTARY |
3205 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3206 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3207 | break; | |
3208 | #endif | |
3209 | ||
09bef843 | 3210 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3211 | case LEX_KNOWNEXT: |
5db06880 NC |
3212 | #ifdef PERL_MAD |
3213 | PL_lasttoke--; | |
3214 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3215 | if (PL_madskills) { | |
cd81e915 | 3216 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3217 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3218 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3219 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3220 | PL_thismad->mad_val = 0; | |
3221 | mad_free(PL_thismad); | |
3222 | PL_thismad = 0; | |
5db06880 NC |
3223 | } |
3224 | } | |
3225 | if (!PL_lasttoke) { | |
3226 | PL_lex_state = PL_lex_defer; | |
3227 | PL_expect = PL_lex_expect; | |
3228 | PL_lex_defer = LEX_NORMAL; | |
3229 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3230 | return yylex(); | |
3231 | } | |
3232 | #else | |
3280af22 | 3233 | PL_nexttoke--; |
5db06880 | 3234 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3235 | if (!PL_nexttoke) { |
3236 | PL_lex_state = PL_lex_defer; | |
3237 | PL_expect = PL_lex_expect; | |
3238 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3239 | } |
5db06880 NC |
3240 | #endif |
3241 | #ifdef PERL_MAD | |
3242 | /* FIXME - can these be merged? */ | |
3243 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3244 | #else | |
bbf60fe6 | 3245 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3246 | #endif |
79072805 | 3247 | |
02aa26ce | 3248 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3249 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3250 | */ |
79072805 LW |
3251 | case LEX_INTERPCASEMOD: |
3252 | #ifdef DEBUGGING | |
3280af22 | 3253 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3254 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3255 | #endif |
02aa26ce | 3256 | /* handle \E or end of string */ |
3280af22 | 3257 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3258 | /* if at a \E */ |
3280af22 | 3259 | if (PL_lex_casemods) { |
f54cb97a | 3260 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3261 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3262 | |
3792a11b NC |
3263 | if (PL_bufptr != PL_bufend |
3264 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3265 | PL_bufptr += 2; |
3266 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3267 | #ifdef PERL_MAD |
3268 | if (PL_madskills) | |
6b29d1f5 | 3269 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3270 | #endif |
a0d0e21e | 3271 | } |
bbf60fe6 | 3272 | return REPORT(')'); |
79072805 | 3273 | } |
5db06880 NC |
3274 | #ifdef PERL_MAD |
3275 | while (PL_bufptr != PL_bufend && | |
3276 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3277 | if (!PL_thiswhite) |
6b29d1f5 | 3278 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3279 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3280 | PL_bufptr += 2; |
3281 | } | |
3282 | #else | |
3280af22 NIS |
3283 | if (PL_bufptr != PL_bufend) |
3284 | PL_bufptr += 2; | |
5db06880 | 3285 | #endif |
3280af22 | 3286 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3287 | return yylex(); |
79072805 LW |
3288 | } |
3289 | else { | |
607df283 | 3290 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3291 | "### Saw case modifier\n"); }); |
3280af22 | 3292 | s = PL_bufptr + 1; |
6e909404 | 3293 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3294 | #ifdef PERL_MAD |
cd81e915 | 3295 | if (!PL_thiswhite) |
6b29d1f5 | 3296 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3297 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3298 | #endif |
89122651 | 3299 | PL_bufptr = s + 3; |
6e909404 JH |
3300 | PL_lex_state = LEX_INTERPCONCAT; |
3301 | return yylex(); | |
a0d0e21e | 3302 | } |
6e909404 | 3303 | else { |
90771dc0 | 3304 | I32 tmp; |
5db06880 NC |
3305 | if (!PL_madskills) /* when just compiling don't need correct */ |
3306 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3307 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3308 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3309 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3310 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3311 | return REPORT(')'); |
6e909404 JH |
3312 | } |
3313 | if (PL_lex_casemods > 10) | |
3314 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3315 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3316 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3317 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3318 | start_force(PL_curforce); |
9ded7720 | 3319 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3320 | force_next('('); |
cd81e915 | 3321 | start_force(PL_curforce); |
6e909404 | 3322 | if (*s == 'l') |
9ded7720 | 3323 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3324 | else if (*s == 'u') |
9ded7720 | 3325 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3326 | else if (*s == 'L') |
9ded7720 | 3327 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3328 | else if (*s == 'U') |
9ded7720 | 3329 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3330 | else if (*s == 'Q') |
9ded7720 | 3331 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3332 | else |
3333 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3334 | if (PL_madskills) { |
6b29d1f5 | 3335 | SV* const tmpsv = newSVpvs(""); |
5db06880 NC |
3336 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3337 | curmad('_', tmpsv); | |
3338 | } | |
6e909404 | 3339 | PL_bufptr = s + 1; |
a0d0e21e | 3340 | } |
79072805 | 3341 | force_next(FUNC); |
3280af22 NIS |
3342 | if (PL_lex_starts) { |
3343 | s = PL_bufptr; | |
3344 | PL_lex_starts = 0; | |
5db06880 NC |
3345 | #ifdef PERL_MAD |
3346 | if (PL_madskills) { | |
cd81e915 NC |
3347 | if (PL_thistoken) |
3348 | sv_free(PL_thistoken); | |
6b29d1f5 | 3349 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3350 | } |
3351 | #endif | |
131b3ad0 DM |
3352 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3353 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3354 | OPERATOR(','); | |
3355 | else | |
3356 | Aop(OP_CONCAT); | |
79072805 LW |
3357 | } |
3358 | else | |
cea2e8a9 | 3359 | return yylex(); |
79072805 LW |
3360 | } |
3361 | ||
55497cff | 3362 | case LEX_INTERPPUSH: |
bbf60fe6 | 3363 | return REPORT(sublex_push()); |
55497cff | 3364 | |
79072805 | 3365 | case LEX_INTERPSTART: |
3280af22 | 3366 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3367 | return REPORT(sublex_done()); |
607df283 | 3368 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3369 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3370 | PL_expect = XTERM; |
3371 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3372 | PL_lex_state = LEX_INTERPNORMAL; | |
3373 | if (PL_lex_dojoin) { | |
cd81e915 | 3374 | start_force(PL_curforce); |
9ded7720 | 3375 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3376 | force_next(','); |
cd81e915 | 3377 | start_force(PL_curforce); |
a0d0e21e | 3378 | force_ident("\"", '$'); |
cd81e915 | 3379 | start_force(PL_curforce); |
9ded7720 | 3380 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3381 | force_next('$'); |
cd81e915 | 3382 | start_force(PL_curforce); |
9ded7720 | 3383 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3384 | force_next('('); |
cd81e915 | 3385 | start_force(PL_curforce); |
9ded7720 | 3386 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3387 | force_next(FUNC); |
3388 | } | |
3280af22 NIS |
3389 | if (PL_lex_starts++) { |
3390 | s = PL_bufptr; | |
5db06880 NC |
3391 | #ifdef PERL_MAD |
3392 | if (PL_madskills) { | |
cd81e915 NC |
3393 | if (PL_thistoken) |
3394 | sv_free(PL_thistoken); | |
6b29d1f5 | 3395 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3396 | } |
3397 | #endif | |
131b3ad0 DM |
3398 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3399 | if (!PL_lex_casemods && PL_lex_inpat) | |
3400 | OPERATOR(','); | |
3401 | else | |
3402 | Aop(OP_CONCAT); | |
79072805 | 3403 | } |
cea2e8a9 | 3404 | return yylex(); |
79072805 LW |
3405 | |
3406 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3407 | if (intuit_more(PL_bufptr)) { |
3408 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3409 | break; |
3410 | } | |
3411 | /* FALL THROUGH */ | |
3412 | ||
3413 | case LEX_INTERPEND: | |
3280af22 NIS |
3414 | if (PL_lex_dojoin) { |
3415 | PL_lex_dojoin = FALSE; | |
3416 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3417 | #ifdef PERL_MAD |
3418 | if (PL_madskills) { | |
cd81e915 NC |
3419 | if (PL_thistoken) |
3420 | sv_free(PL_thistoken); | |
6b29d1f5 | 3421 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3422 | } |
3423 | #endif | |
bbf60fe6 | 3424 | return REPORT(')'); |
79072805 | 3425 | } |
43a16006 | 3426 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3427 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3428 | { |
e9fa98b2 | 3429 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3430 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3431 | PL_lex_repl = NULL; |
e9fa98b2 | 3432 | } |
79072805 LW |
3433 | /* FALLTHROUGH */ |
3434 | case LEX_INTERPCONCAT: | |
3435 | #ifdef DEBUGGING | |
3280af22 | 3436 | if (PL_lex_brackets) |
cea2e8a9 | 3437 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3438 | #endif |
3280af22 | 3439 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3440 | return REPORT(sublex_done()); |
79072805 | 3441 | |
3280af22 NIS |
3442 | if (SvIVX(PL_linestr) == '\'') { |
3443 | SV *sv = newSVsv(PL_linestr); | |
3444 | if (!PL_lex_inpat) | |
76e3520e | 3445 | sv = tokeq(sv); |
3280af22 | 3446 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3447 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3448 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3449 | s = PL_bufend; |
79072805 LW |
3450 | } |
3451 | else { | |
3280af22 | 3452 | s = scan_const(PL_bufptr); |
79072805 | 3453 | if (*s == '\\') |
3280af22 | 3454 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3455 | else |
3280af22 | 3456 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3457 | } |
3458 | ||
3280af22 | 3459 | if (s != PL_bufptr) { |
cd81e915 | 3460 | start_force(PL_curforce); |
5db06880 NC |
3461 | if (PL_madskills) { |
3462 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3463 | } | |
9ded7720 | 3464 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3465 | PL_expect = XTERM; |
79072805 | 3466 | force_next(THING); |
131b3ad0 | 3467 | if (PL_lex_starts++) { |
5db06880 NC |
3468 | #ifdef PERL_MAD |
3469 | if (PL_madskills) { | |
cd81e915 NC |
3470 | if (PL_thistoken) |
3471 | sv_free(PL_thistoken); | |
6b29d1f5 | 3472 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3473 | } |
3474 | #endif | |
131b3ad0 DM |
3475 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3476 | if (!PL_lex_casemods && PL_lex_inpat) | |
3477 | OPERATOR(','); | |
3478 | else | |
3479 | Aop(OP_CONCAT); | |
3480 | } | |
79072805 | 3481 | else { |
3280af22 | 3482 | PL_bufptr = s; |
cea2e8a9 | 3483 | return yylex(); |
79072805 LW |
3484 | } |
3485 | } | |
3486 | ||
cea2e8a9 | 3487 | return yylex(); |
a0d0e21e | 3488 | case LEX_FORMLINE: |
3280af22 NIS |
3489 | PL_lex_state = LEX_NORMAL; |
3490 | s = scan_formline(PL_bufptr); | |
3491 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3492 | goto rightbracket; |
3493 | OPERATOR(';'); | |
79072805 LW |
3494 | } |
3495 | ||
3280af22 NIS |
3496 | s = PL_bufptr; |
3497 | PL_oldoldbufptr = PL_oldbufptr; | |
3498 | PL_oldbufptr = s; | |
463ee0b2 LW |
3499 | |
3500 | retry: | |
5db06880 | 3501 | #ifdef PERL_MAD |
cd81e915 NC |
3502 | if (PL_thistoken) { |
3503 | sv_free(PL_thistoken); | |
3504 | PL_thistoken = 0; | |
5db06880 | 3505 | } |
cd81e915 | 3506 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3507 | #endif |
378cc40b LW |
3508 | switch (*s) { |
3509 | default: | |
7e2040f0 | 3510 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3511 | goto keylookup; |
cea2e8a9 | 3512 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3513 | case 4: |
3514 | case 26: | |
3515 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3516 | case 0: |
5db06880 NC |
3517 | #ifdef PERL_MAD |
3518 | if (PL_madskills) | |
cd81e915 | 3519 | PL_faketokens = 0; |
5db06880 | 3520 | #endif |
3280af22 NIS |
3521 | if (!PL_rsfp) { |
3522 | PL_last_uni = 0; | |
3523 | PL_last_lop = 0; | |
c5ee2135 | 3524 | if (PL_lex_brackets) { |
10edeb5d JH |
3525 | yyerror((const char *) |
3526 | (PL_lex_formbrack | |
3527 | ? "Format not terminated" | |
3528 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3529 | } |
4e553d73 | 3530 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3531 | "### Tokener got EOF\n"); |
5f80b19c | 3532 | } ); |
79072805 | 3533 | TOKEN(0); |
463ee0b2 | 3534 | } |
3280af22 | 3535 | if (s++ < PL_bufend) |
a687059c | 3536 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3537 | PL_last_uni = 0; |
3538 | PL_last_lop = 0; | |
3539 | if (!PL_in_eval && !PL_preambled) { | |
3540 | PL_preambled = TRUE; | |
5db06880 NC |
3541 | #ifdef PERL_MAD |
3542 | if (PL_madskills) | |
cd81e915 | 3543 | PL_faketokens = 1; |
5db06880 | 3544 | #endif |
3280af22 NIS |
3545 | sv_setpv(PL_linestr,incl_perldb()); |
3546 | if (SvCUR(PL_linestr)) | |
396482e1 | 3547 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3548 | if (PL_preambleav){ |
3549 | while(AvFILLp(PL_preambleav) >= 0) { | |
3550 | SV *tmpsv = av_shift(PL_preambleav); | |
3551 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3552 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3553 | sv_free(tmpsv); |
3554 | } | |
3280af22 NIS |
3555 | sv_free((SV*)PL_preambleav); |
3556 | PL_preambleav = NULL; | |
91b7def8 | 3557 | } |
3280af22 | 3558 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3559 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3560 | if (PL_minus_l) |
396482e1 | 3561 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3562 | if (PL_minus_a) { |
3280af22 | 3563 | if (PL_minus_F) { |
3792a11b NC |
3564 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3565 | || *PL_splitstr == '"') | |
3280af22 | 3566 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3567 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3568 | else { |
c8ef6a4b NC |
3569 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3570 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3571 | const char *splits = PL_splitstr; |
91d456ae | 3572 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3573 | do { |
3574 | /* Need to \ \s */ | |
dd374669 AL |
3575 | if (*splits == '\\') |
3576 | sv_catpvn(PL_linestr, splits, 1); | |
3577 | sv_catpvn(PL_linestr, splits, 1); | |
3578 | } while (*splits++); | |
48c4c863 NC |
3579 | /* This loop will embed the trailing NUL of |
3580 | PL_linestr as the last thing it does before | |
3581 | terminating. */ | |
396482e1 | 3582 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3583 | } |
2304df62 AD |
3584 | } |
3585 | else | |
396482e1 | 3586 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3587 | } |
79072805 | 3588 | } |
bc9b29db | 3589 | if (PL_minus_E) |
396482e1 GA |
3590 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3591 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3592 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3593 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3594 | PL_last_lop = PL_last_uni = NULL; |
80a702cd | 3595 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3596 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 3597 | goto retry; |
a687059c | 3598 | } |
e929a76b | 3599 | do { |
aa7440fb | 3600 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3601 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3602 | fake_eof: |
5db06880 | 3603 | #ifdef PERL_MAD |
cd81e915 | 3604 | PL_realtokenstart = -1; |
5db06880 | 3605 | #endif |
7e28d3af JH |
3606 | if (PL_rsfp) { |
3607 | if (PL_preprocess && !PL_in_eval) | |
3608 | (void)PerlProc_pclose(PL_rsfp); | |
3609 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3610 | PerlIO_clearerr(PL_rsfp); | |
3611 | else | |
3612 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3613 | PL_rsfp = NULL; |
7e28d3af JH |
3614 | PL_doextract = FALSE; |
3615 | } | |
3616 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3617 | #ifdef PERL_MAD |
3618 | if (PL_madskills) | |
cd81e915 | 3619 | PL_faketokens = 1; |
5db06880 | 3620 | #endif |
10edeb5d JH |
3621 | sv_setpv(PL_linestr, |
3622 | (const char *) | |
3623 | (PL_minus_p | |
3624 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
3625 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3626 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3627 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3628 | PL_minus_n = PL_minus_p = 0; |
3629 | goto retry; | |
3630 | } | |
3631 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3632 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3633 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3634 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3635 | } | |
7aa207d6 JH |
3636 | /* If it looks like the start of a BOM or raw UTF-16, |
3637 | * check if it in fact is. */ | |
3638 | else if (bof && | |
3639 | (*s == 0 || | |
3640 | *(U8*)s == 0xEF || | |
3641 | *(U8*)s >= 0xFE || | |
3642 | s[1] == 0)) { | |
226017aa | 3643 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3644 | # ifdef __GNU_LIBRARY__ |
3645 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3646 | # define FTELL_FOR_PIPE_IS_BROKEN |
3647 | # endif | |
e3f494f1 JH |
3648 | # else |
3649 | # ifdef __GLIBC__ | |
3650 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3651 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3652 | # endif | |
3653 | # endif | |
226017aa DD |
3654 | # endif |
3655 | #endif | |
3656 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3657 | /* This loses the possibility to detect the bof | |
3658 | * situation on perl -P when the libc5 is being used. | |
3659 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3660 | */ | |
3661 | if (!PL_preprocess) | |
7e28d3af | 3662 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3663 | #else |
eb160463 | 3664 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3665 | #endif |
7e28d3af | 3666 | if (bof) { |
3280af22 | 3667 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3668 | s = swallow_bom((U8*)s); |
e929a76b | 3669 | } |
378cc40b | 3670 | } |
3280af22 | 3671 | if (PL_doextract) { |
a0d0e21e | 3672 | /* Incest with pod. */ |
5db06880 NC |
3673 | #ifdef PERL_MAD |
3674 | if (PL_madskills) | |
cd81e915 | 3675 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3676 | #endif |
01a57ef7 | 3677 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
c69006e4 | 3678 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3679 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3680 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3681 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3682 | PL_doextract = FALSE; |
a0d0e21e | 3683 | } |
4e553d73 | 3684 | } |
463ee0b2 | 3685 | incline(s); |
3280af22 NIS |
3686 | } while (PL_doextract); |
3687 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
80a702cd | 3688 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3689 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 3690 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3691 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3692 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3693 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3694 | s++; |
a0d0e21e | 3695 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3696 | s++; |
5db06880 NC |
3697 | #ifdef PERL_MAD |
3698 | if (PL_madskills) | |
cd81e915 | 3699 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3700 | #endif |
bd61b366 | 3701 | d = NULL; |
3280af22 | 3702 | if (!PL_in_eval) { |
44a8e56a | 3703 | if (*s == '#' && *(s+1) == '!') |
3704 | d = s + 2; | |
3705 | #ifdef ALTERNATE_SHEBANG | |
3706 | else { | |
bfed75c6 | 3707 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3708 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3709 | d = s + (sizeof(as) - 1); | |
3710 | } | |
3711 | #endif /* ALTERNATE_SHEBANG */ | |
3712 | } | |
3713 | if (d) { | |
b8378b72 | 3714 | char *ipath; |
774d564b | 3715 | char *ipathend; |
b8378b72 | 3716 | |
774d564b | 3717 | while (isSPACE(*d)) |
b8378b72 CS |
3718 | d++; |
3719 | ipath = d; | |
774d564b | 3720 | while (*d && !isSPACE(*d)) |
3721 | d++; | |
3722 | ipathend = d; | |
3723 | ||
3724 | #ifdef ARG_ZERO_IS_SCRIPT | |
3725 | if (ipathend > ipath) { | |
3726 | /* | |
3727 | * HP-UX (at least) sets argv[0] to the script name, | |
3728 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3729 | * at least, set argv[0] to the basename of the Perl | |
3730 | * interpreter. So, having found "#!", we'll set it right. | |
3731 | */ | |
fafc274c NC |
3732 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3733 | SVt_PV)); /* $^X */ | |
774d564b | 3734 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3735 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3736 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3737 | SvSETMAGIC(x); |
3738 | } | |
556c1dec JH |
3739 | else { |
3740 | STRLEN blen; | |
3741 | STRLEN llen; | |
cfd0369c | 3742 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3743 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3744 | if (llen < blen) { |
3745 | bstart += blen - llen; | |
3746 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3747 | sv_setpvn(x, ipath, ipathend - ipath); | |
3748 | SvSETMAGIC(x); | |
3749 | } | |
3750 | } | |
3751 | } | |
774d564b | 3752 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3753 | } |
774d564b | 3754 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3755 | |
3756 | /* | |
3757 | * Look for options. | |
3758 | */ | |
748a9306 | 3759 | d = instr(s,"perl -"); |
84e30d1a | 3760 | if (!d) { |
748a9306 | 3761 | d = instr(s,"perl"); |
84e30d1a GS |
3762 | #if defined(DOSISH) |
3763 | /* avoid getting into infinite loops when shebang | |
3764 | * line contains "Perl" rather than "perl" */ | |
3765 | if (!d) { | |
3766 | for (d = ipathend-4; d >= ipath; --d) { | |
3767 | if ((*d == 'p' || *d == 'P') | |
3768 | && !ibcmp(d, "perl", 4)) | |
3769 | { | |
3770 | break; | |
3771 | } | |
3772 | } | |
3773 | if (d < ipath) | |
bd61b366 | 3774 | d = NULL; |
84e30d1a GS |
3775 | } |
3776 | #endif | |
3777 | } | |
44a8e56a | 3778 | #ifdef ALTERNATE_SHEBANG |
3779 | /* | |
3780 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3781 | * character that can be part of a Perl expression, then if | |
3782 | * we see it but not "perl", we're probably looking at the | |
3783 | * start of Perl code, not a request to hand off to some | |
3784 | * other interpreter. Similarly, if "perl" is there, but | |
3785 | * not in the first 'word' of the line, we assume the line | |
3786 | * contains the start of the Perl program. | |
44a8e56a | 3787 | */ |
3788 | if (d && *s != '#') { | |
f54cb97a | 3789 | const char *c = ipath; |
44a8e56a | 3790 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3791 | c++; | |
3792 | if (c < d) | |
bd61b366 | 3793 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3794 | else |
3795 | *s = '#'; /* Don't try to parse shebang line */ | |
3796 | } | |
774d564b | 3797 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3798 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3799 | if (!d && |
44a8e56a | 3800 | *s == '#' && |
774d564b | 3801 | ipathend > ipath && |
3280af22 | 3802 | !PL_minus_c && |
748a9306 | 3803 | !instr(s,"indir") && |
3280af22 | 3804 | instr(PL_origargv[0],"perl")) |
748a9306 | 3805 | { |
27da23d5 | 3806 | dVAR; |
9f68db38 | 3807 | char **newargv; |
9f68db38 | 3808 | |
774d564b | 3809 | *ipathend = '\0'; |
3810 | s = ipathend + 1; | |
3280af22 | 3811 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3812 | s++; |
3280af22 | 3813 | if (s < PL_bufend) { |
a02a5408 | 3814 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3815 | newargv[1] = s; |
3280af22 | 3816 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3817 | s++; |
3818 | *s = '\0'; | |
3280af22 | 3819 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3820 | } |
3821 | else | |
3280af22 | 3822 | newargv = PL_origargv; |
774d564b | 3823 | newargv[0] = ipath; |
b35112e7 | 3824 | PERL_FPU_PRE_EXEC |
b4748376 | 3825 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3826 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3827 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3828 | } |
bf4acbe4 | 3829 | #endif |
748a9306 | 3830 | if (d) { |
c35e046a AL |
3831 | while (*d && !isSPACE(*d)) |
3832 | d++; | |
3833 | while (SPACE_OR_TAB(*d)) | |
3834 | d++; | |
748a9306 LW |
3835 | |
3836 | if (*d++ == '-') { | |
f54cb97a | 3837 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3838 | const U32 oldpdb = PL_perldb; |
3839 | const bool oldn = PL_minus_n; | |
3840 | const bool oldp = PL_minus_p; | |
3841 | ||
8cc95fdb | 3842 | do { |
3ffe3ee4 | 3843 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3844 | const char * const m = d; |
d4c19fe8 AL |
3845 | while (*d && !isSPACE(*d)) |
3846 | d++; | |
cea2e8a9 | 3847 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3848 | (int)(d - m), m); |
3849 | } | |
97bd5664 | 3850 | d = moreswitches(d); |
8cc95fdb | 3851 | } while (d); |
f0b2cf55 YST |
3852 | if (PL_doswitches && !switches_done) { |
3853 | int argc = PL_origargc; | |
3854 | char **argv = PL_origargv; | |
3855 | do { | |
3856 | argc--,argv++; | |
3857 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3858 | init_argv_symbols(argc,argv); | |
3859 | } | |
155aba94 GS |
3860 | if ((PERLDB_LINE && !oldpdb) || |
3861 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3862 | /* if we have already added "LINE: while (<>) {", |
3863 | we must not do it again */ | |
748a9306 | 3864 | { |
c69006e4 | 3865 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3866 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3867 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3868 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3869 | PL_preambled = FALSE; |
84902520 | 3870 | if (PERLDB_LINE) |
3280af22 | 3871 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3872 | goto retry; |
3873 | } | |
a0d0e21e | 3874 | } |
79072805 | 3875 | } |
9f68db38 | 3876 | } |
79072805 | 3877 | } |
3280af22 NIS |
3878 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3879 | PL_bufptr = s; | |
3880 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3881 | return yylex(); |
ae986130 | 3882 | } |
378cc40b | 3883 | goto retry; |
4fdae800 | 3884 | case '\r': |
6a27c188 | 3885 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3886 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3887 | Perl_croak(aTHX_ |
cc507455 | 3888 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3889 | #endif |
4fdae800 | 3890 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3891 | #ifdef MACOS_TRADITIONAL |
3892 | case '\312': | |
3893 | #endif | |
5db06880 | 3894 | #ifdef PERL_MAD |
cd81e915 | 3895 | PL_realtokenstart = -1; |
5db06880 NC |
3896 | s = SKIPSPACE0(s); |
3897 | #else | |
378cc40b | 3898 | s++; |
5db06880 | 3899 | #endif |
378cc40b | 3900 | goto retry; |
378cc40b | 3901 | case '#': |
e929a76b | 3902 | case '\n': |
5db06880 | 3903 | #ifdef PERL_MAD |
cd81e915 | 3904 | PL_realtokenstart = -1; |
5db06880 | 3905 | if (PL_madskills) |
cd81e915 | 3906 | PL_faketokens = 0; |
5db06880 | 3907 | #endif |
3280af22 | 3908 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3909 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3910 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3911 | CopLINE_dec(PL_curcop); | |
3912 | incline(s); | |
3913 | } | |
5db06880 NC |
3914 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3915 | s = SKIPSPACE0(s); | |
3916 | if (!PL_in_eval || PL_rsfp) | |
3917 | incline(s); | |
3918 | } | |
3919 | else { | |
3920 | d = s; | |
3921 | while (d < PL_bufend && *d != '\n') | |
3922 | d++; | |
3923 | if (d < PL_bufend) | |
3924 | d++; | |
3925 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3926 | Perl_croak(aTHX_ "panic: input overflow"); | |
3927 | #ifdef PERL_MAD | |
3928 | if (PL_madskills) | |
cd81e915 | 3929 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3930 | #endif |
3931 | s = d; | |
3932 | incline(s); | |
3933 | } | |
3280af22 NIS |
3934 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3935 | PL_bufptr = s; | |
3936 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3937 | return yylex(); |
a687059c | 3938 | } |
378cc40b | 3939 | } |
a687059c | 3940 | else { |
5db06880 NC |
3941 | #ifdef PERL_MAD |
3942 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3943 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3944 | PL_faketokens = 0; |
5db06880 NC |
3945 | s = SKIPSPACE0(s); |
3946 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
3947 | } | |
3948 | s = SKIPSPACE0(s); | |
3949 | } | |
3950 | else { | |
3951 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
3952 | d = s; | |
3953 | while (d < PL_bufend && *d != '\n') | |
3954 | d++; | |
3955 | if (d < PL_bufend) | |
3956 | d++; | |
3957 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3958 | Perl_croak(aTHX_ "panic: input overflow"); | |
3959 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 3960 | if (!PL_thiswhite) |
6b29d1f5 | 3961 | PL_thiswhite = newSVpvs(""); |
5db06880 | 3962 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
3963 | sv_setpvn(PL_thiswhite, "", 0); |
3964 | PL_faketokens = 0; | |
5db06880 | 3965 | } |
cd81e915 | 3966 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
3967 | } |
3968 | s = d; | |
3969 | /* } | |
3970 | *s = '\0'; | |
3971 | PL_bufend = s; */ | |
3972 | } | |
3973 | #else | |
378cc40b | 3974 | *s = '\0'; |
3280af22 | 3975 | PL_bufend = s; |
5db06880 | 3976 | #endif |
a687059c | 3977 | } |
378cc40b LW |
3978 | goto retry; |
3979 | case '-': | |
79072805 | 3980 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3981 | I32 ftst = 0; |
90771dc0 | 3982 | char tmp; |
e5edeb50 | 3983 | |
378cc40b | 3984 | s++; |
3280af22 | 3985 | PL_bufptr = s; |
748a9306 LW |
3986 | tmp = *s++; |
3987 | ||
bf4acbe4 | 3988 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3989 | s++; |
3990 | ||
3991 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3992 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 3993 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
3994 | OPERATOR('-'); /* unary minus */ |
3995 | } | |
3280af22 | 3996 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3997 | switch (tmp) { |
e5edeb50 JH |
3998 | case 'r': ftst = OP_FTEREAD; break; |
3999 | case 'w': ftst = OP_FTEWRITE; break; | |
4000 | case 'x': ftst = OP_FTEEXEC; break; | |
4001 | case 'o': ftst = OP_FTEOWNED; break; | |
4002 | case 'R': ftst = OP_FTRREAD; break; | |
4003 | case 'W': ftst = OP_FTRWRITE; break; | |
4004 | case 'X': ftst = OP_FTREXEC; break; | |
4005 | case 'O': ftst = OP_FTROWNED; break; | |
4006 | case 'e': ftst = OP_FTIS; break; | |
4007 | case 'z': ftst = OP_FTZERO; break; | |
4008 | case 's': ftst = OP_FTSIZE; break; | |
4009 | case 'f': ftst = OP_FTFILE; break; | |
4010 | case 'd': ftst = OP_FTDIR; break; | |
4011 | case 'l': ftst = OP_FTLINK; break; | |
4012 | case 'p': ftst = OP_FTPIPE; break; | |
4013 | case 'S': ftst = OP_FTSOCK; break; | |
4014 | case 'u': ftst = OP_FTSUID; break; | |
4015 | case 'g': ftst = OP_FTSGID; break; | |
4016 | case 'k': ftst = OP_FTSVTX; break; | |
4017 | case 'b': ftst = OP_FTBLK; break; | |
4018 | case 'c': ftst = OP_FTCHR; break; | |
4019 | case 't': ftst = OP_FTTTY; break; | |
4020 | case 'T': ftst = OP_FTTEXT; break; | |
4021 | case 'B': ftst = OP_FTBINARY; break; | |
4022 | case 'M': case 'A': case 'C': | |
fafc274c | 4023 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4024 | switch (tmp) { |
4025 | case 'M': ftst = OP_FTMTIME; break; | |
4026 | case 'A': ftst = OP_FTATIME; break; | |
4027 | case 'C': ftst = OP_FTCTIME; break; | |
4028 | default: break; | |
4029 | } | |
4030 | break; | |
378cc40b | 4031 | default: |
378cc40b LW |
4032 | break; |
4033 | } | |
e5edeb50 | 4034 | if (ftst) { |
eb160463 | 4035 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4036 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4037 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4038 | } ); |
e5edeb50 JH |
4039 | FTST(ftst); |
4040 | } | |
4041 | else { | |
4042 | /* Assume it was a minus followed by a one-letter named | |
4043 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4044 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4045 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4046 | (int) tmp); |
5f80b19c | 4047 | } ); |
3cf7b4c4 | 4048 | s = --PL_bufptr; |
e5edeb50 | 4049 | } |
378cc40b | 4050 | } |
90771dc0 NC |
4051 | { |
4052 | const char tmp = *s++; | |
4053 | if (*s == tmp) { | |
4054 | s++; | |
4055 | if (PL_expect == XOPERATOR) | |
4056 | TERM(POSTDEC); | |
4057 | else | |
4058 | OPERATOR(PREDEC); | |
4059 | } | |
4060 | else if (*s == '>') { | |
4061 | s++; | |
29595ff2 | 4062 | s = SKIPSPACE1(s); |
90771dc0 NC |
4063 | if (isIDFIRST_lazy_if(s,UTF)) { |
4064 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4065 | TOKEN(ARROW); | |
4066 | } | |
4067 | else if (*s == '$') | |
4068 | OPERATOR(ARROW); | |
4069 | else | |
4070 | TERM(ARROW); | |
4071 | } | |
3280af22 | 4072 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4073 | Aop(OP_SUBTRACT); |
4074 | else { | |
4075 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4076 | check_uni(); | |
4077 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4078 | } |
2f3197b3 | 4079 | } |
79072805 | 4080 | |
378cc40b | 4081 | case '+': |
90771dc0 NC |
4082 | { |
4083 | const char tmp = *s++; | |
4084 | if (*s == tmp) { | |
4085 | s++; | |
4086 | if (PL_expect == XOPERATOR) | |
4087 | TERM(POSTINC); | |
4088 | else | |
4089 | OPERATOR(PREINC); | |
4090 | } | |
3280af22 | 4091 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4092 | Aop(OP_ADD); |
4093 | else { | |
4094 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4095 | check_uni(); | |
4096 | OPERATOR('+'); | |
4097 | } | |
2f3197b3 | 4098 | } |
a687059c | 4099 | |
378cc40b | 4100 | case '*': |
3280af22 NIS |
4101 | if (PL_expect != XOPERATOR) { |
4102 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4103 | PL_expect = XOPERATOR; | |
4104 | force_ident(PL_tokenbuf, '*'); | |
4105 | if (!*PL_tokenbuf) | |
a0d0e21e | 4106 | PREREF('*'); |
79072805 | 4107 | TERM('*'); |
a687059c | 4108 | } |
79072805 LW |
4109 | s++; |
4110 | if (*s == '*') { | |
a687059c | 4111 | s++; |
79072805 | 4112 | PWop(OP_POW); |
a687059c | 4113 | } |
79072805 LW |
4114 | Mop(OP_MULTIPLY); |
4115 | ||
378cc40b | 4116 | case '%': |
3280af22 | 4117 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4118 | ++s; |
4119 | Mop(OP_MODULO); | |
a687059c | 4120 | } |
3280af22 NIS |
4121 | PL_tokenbuf[0] = '%'; |
4122 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
4123 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4124 | PREREF('%'); |
a687059c | 4125 | } |
3280af22 | 4126 | PL_pending_ident = '%'; |
bbce6d69 | 4127 | TERM('%'); |
a687059c | 4128 | |
378cc40b | 4129 | case '^': |
79072805 | 4130 | s++; |
a0d0e21e | 4131 | BOop(OP_BIT_XOR); |
79072805 | 4132 | case '[': |
3280af22 | 4133 | PL_lex_brackets++; |
79072805 | 4134 | /* FALL THROUGH */ |
378cc40b | 4135 | case '~': |
0d863452 RH |
4136 | if (s[1] == '~' |
4137 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 4138 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
4139 | { |
4140 | s += 2; | |
4141 | Eop(OP_SMARTMATCH); | |
4142 | } | |
378cc40b | 4143 | case ',': |
90771dc0 NC |
4144 | { |
4145 | const char tmp = *s++; | |
4146 | OPERATOR(tmp); | |
4147 | } | |
a0d0e21e LW |
4148 | case ':': |
4149 | if (s[1] == ':') { | |
4150 | len = 0; | |
0bfa2a8a | 4151 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4152 | } |
4153 | s++; | |
09bef843 SB |
4154 | switch (PL_expect) { |
4155 | OP *attrs; | |
5db06880 NC |
4156 | #ifdef PERL_MAD |
4157 | I32 stuffstart; | |
4158 | #endif | |
09bef843 SB |
4159 | case XOPERATOR: |
4160 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4161 | break; | |
4162 | PL_bufptr = s; /* update in case we back off */ | |
4163 | goto grabattrs; | |
4164 | case XATTRBLOCK: | |
4165 | PL_expect = XBLOCK; | |
4166 | goto grabattrs; | |
4167 | case XATTRTERM: | |
4168 | PL_expect = XTERMBLOCK; | |
4169 | grabattrs: | |
5db06880 NC |
4170 | #ifdef PERL_MAD |
4171 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4172 | #endif | |
29595ff2 | 4173 | s = PEEKSPACE(s); |
5f66b61c | 4174 | attrs = NULL; |
7e2040f0 | 4175 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4176 | I32 tmp; |
5cc237b8 | 4177 | SV *sv; |
09bef843 | 4178 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4179 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4180 | if (tmp < 0) tmp = -tmp; |
4181 | switch (tmp) { | |
4182 | case KEY_or: | |
4183 | case KEY_and: | |
c963b151 | 4184 | case KEY_err: |
f9829d6b GS |
4185 | case KEY_for: |
4186 | case KEY_unless: | |
4187 | case KEY_if: | |
4188 | case KEY_while: | |
4189 | case KEY_until: | |
4190 | goto got_attrs; | |
4191 | default: | |
4192 | break; | |
4193 | } | |
4194 | } | |
5cc237b8 | 4195 | sv = newSVpvn(s, len); |
09bef843 SB |
4196 | if (*d == '(') { |
4197 | d = scan_str(d,TRUE,TRUE); | |
4198 | if (!d) { | |
09bef843 SB |
4199 | /* MUST advance bufptr here to avoid bogus |
4200 | "at end of line" context messages from yyerror(). | |
4201 | */ | |
4202 | PL_bufptr = s + len; | |
4203 | yyerror("Unterminated attribute parameter in attribute list"); | |
4204 | if (attrs) | |
4205 | op_free(attrs); | |
5cc237b8 | 4206 | sv_free(sv); |
bbf60fe6 | 4207 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4208 | } |
4209 | } | |
4210 | if (PL_lex_stuff) { | |
09bef843 SB |
4211 | sv_catsv(sv, PL_lex_stuff); |
4212 | attrs = append_elem(OP_LIST, attrs, | |
4213 | newSVOP(OP_CONST, 0, sv)); | |
4214 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4215 | PL_lex_stuff = NULL; |
09bef843 SB |
4216 | } |
4217 | else { | |
5cc237b8 BS |
4218 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4219 | sv_free(sv); | |
1108974d | 4220 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4221 | #ifdef USE_ITHREADS |
4222 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4223 | #else | |
1108974d | 4224 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4225 | #endif |
df9a6019 | 4226 | deprecate(":unique"); |
1108974d | 4227 | } |
bfed75c6 | 4228 | else |
371fce9b DM |
4229 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4230 | } | |
4231 | ||
d3cea301 SB |
4232 | /* NOTE: any CV attrs applied here need to be part of |
4233 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4234 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4235 | sv_free(sv); | |
78f9721b | 4236 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4237 | } |
4238 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4239 | sv_free(sv); | |
78f9721b | 4240 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4241 | } |
4242 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4243 | sv_free(sv); | |
78f9721b | 4244 | CvMETHOD_on(PL_compcv); |
5cc237b8 BS |
4245 | } |
4246 | else if (!PL_in_my && len == 9 && strnEQ(SvPVX(sv), "assertion", len)) { | |
4247 | sv_free(sv); | |
06492da6 | 4248 | CvASSERTION_on(PL_compcv); |
5cc237b8 | 4249 | } |
78f9721b SM |
4250 | /* After we've set the flags, it could be argued that |
4251 | we don't need to do the attributes.pm-based setting | |
4252 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4253 | flags. To experiment with that, uncomment the |
4254 | following "else". (Note that's already been | |
4255 | uncommented. That keeps the above-applied built-in | |
4256 | attributes from being intercepted (and possibly | |
4257 | rejected) by a package's attribute routines, but is | |
4258 | justified by the performance win for the common case | |
4259 | of applying only built-in attributes.) */ | |
0256094b | 4260 | else |
78f9721b SM |
4261 | attrs = append_elem(OP_LIST, attrs, |
4262 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4263 | sv)); |
09bef843 | 4264 | } |
29595ff2 | 4265 | s = PEEKSPACE(d); |
0120eecf | 4266 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4267 | s = PEEKSPACE(s+1); |
0120eecf GS |
4268 | else if (s == d) |
4269 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4270 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4271 | } |
90771dc0 NC |
4272 | { |
4273 | const char tmp | |
4274 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4275 | if (*s != ';' && *s != '}' && *s != tmp | |
4276 | && (tmp != '=' || *s != ')')) { | |
4277 | const char q = ((*s == '\'') ? '"' : '\''); | |
4278 | /* If here for an expression, and parsed no attrs, back | |
4279 | off. */ | |
4280 | if (tmp == '=' && !attrs) { | |
4281 | s = PL_bufptr; | |
4282 | break; | |
4283 | } | |
4284 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4285 | context messages from yyerror(). | |
4286 | */ | |
4287 | PL_bufptr = s; | |
10edeb5d JH |
4288 | yyerror( (const char *) |
4289 | (*s | |
4290 | ? Perl_form(aTHX_ "Invalid separator character " | |
4291 | "%c%c%c in attribute list", q, *s, q) | |
4292 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4293 | if (attrs) |
4294 | op_free(attrs); | |
4295 | OPERATOR(':'); | |
09bef843 | 4296 | } |
09bef843 | 4297 | } |
f9829d6b | 4298 | got_attrs: |
09bef843 | 4299 | if (attrs) { |
cd81e915 | 4300 | start_force(PL_curforce); |
9ded7720 | 4301 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4302 | CURMAD('_', PL_nextwhite); |
89122651 | 4303 | force_next(THING); |
5db06880 NC |
4304 | } |
4305 | #ifdef PERL_MAD | |
4306 | if (PL_madskills) { | |
cd81e915 | 4307 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4308 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4309 | } |
5db06880 | 4310 | #endif |
09bef843 SB |
4311 | TOKEN(COLONATTR); |
4312 | } | |
a0d0e21e | 4313 | OPERATOR(':'); |
8990e307 LW |
4314 | case '(': |
4315 | s++; | |
3280af22 NIS |
4316 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4317 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4318 | else |
3280af22 | 4319 | PL_expect = XTERM; |
29595ff2 | 4320 | s = SKIPSPACE1(s); |
a0d0e21e | 4321 | TOKEN('('); |
378cc40b | 4322 | case ';': |
f4dd75d9 | 4323 | CLINE; |
90771dc0 NC |
4324 | { |
4325 | const char tmp = *s++; | |
4326 | OPERATOR(tmp); | |
4327 | } | |
378cc40b | 4328 | case ')': |
90771dc0 NC |
4329 | { |
4330 | const char tmp = *s++; | |
29595ff2 | 4331 | s = SKIPSPACE1(s); |
90771dc0 NC |
4332 | if (*s == '{') |
4333 | PREBLOCK(tmp); | |
4334 | TERM(tmp); | |
4335 | } | |
79072805 LW |
4336 | case ']': |
4337 | s++; | |
3280af22 | 4338 | if (PL_lex_brackets <= 0) |
d98d5fff | 4339 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4340 | else |
3280af22 NIS |
4341 | --PL_lex_brackets; |
4342 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4343 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 4344 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 4345 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4346 | } |
4347 | } | |
4633a7c4 | 4348 | TERM(']'); |
79072805 LW |
4349 | case '{': |
4350 | leftbracket: | |
79072805 | 4351 | s++; |
3280af22 | 4352 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4353 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4354 | } |
3280af22 | 4355 | switch (PL_expect) { |
a0d0e21e | 4356 | case XTERM: |
3280af22 | 4357 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4358 | s--; |
4359 | PRETERMBLOCK(DO); | |
4360 | } | |
3280af22 NIS |
4361 | if (PL_oldoldbufptr == PL_last_lop) |
4362 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4363 | else |
3280af22 | 4364 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4365 | OPERATOR(HASHBRACK); |
a0d0e21e | 4366 | case XOPERATOR: |
bf4acbe4 | 4367 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4368 | s++; |
44a8e56a | 4369 | d = s; |
3280af22 NIS |
4370 | PL_tokenbuf[0] = '\0'; |
4371 | if (d < PL_bufend && *d == '-') { | |
4372 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4373 | d++; |
bf4acbe4 | 4374 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4375 | d++; |
4376 | } | |
7e2040f0 | 4377 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4378 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4379 | FALSE, &len); |
bf4acbe4 | 4380 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4381 | d++; |
4382 | if (*d == '}') { | |
f54cb97a | 4383 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4384 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4385 | if (minus) | |
4386 | force_next('-'); | |
748a9306 LW |
4387 | } |
4388 | } | |
4389 | /* FALL THROUGH */ | |
09bef843 | 4390 | case XATTRBLOCK: |
748a9306 | 4391 | case XBLOCK: |
3280af22 NIS |
4392 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4393 | PL_expect = XSTATE; | |
a0d0e21e | 4394 | break; |
09bef843 | 4395 | case XATTRTERM: |
a0d0e21e | 4396 | case XTERMBLOCK: |
3280af22 NIS |
4397 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4398 | PL_expect = XSTATE; | |
a0d0e21e LW |
4399 | break; |
4400 | default: { | |
f54cb97a | 4401 | const char *t; |
3280af22 NIS |
4402 | if (PL_oldoldbufptr == PL_last_lop) |
4403 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4404 | else |
3280af22 | 4405 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4406 | s = SKIPSPACE1(s); |
8452ff4b SB |
4407 | if (*s == '}') { |
4408 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4409 | PL_expect = XTERM; | |
4410 | /* This hack is to get the ${} in the message. */ | |
4411 | PL_bufptr = s+1; | |
4412 | yyerror("syntax error"); | |
4413 | break; | |
4414 | } | |
a0d0e21e | 4415 | OPERATOR(HASHBRACK); |
8452ff4b | 4416 | } |
b8a4b1be GS |
4417 | /* This hack serves to disambiguate a pair of curlies |
4418 | * as being a block or an anon hash. Normally, expectation | |
4419 | * determines that, but in cases where we're not in a | |
4420 | * position to expect anything in particular (like inside | |
4421 | * eval"") we have to resolve the ambiguity. This code | |
4422 | * covers the case where the first term in the curlies is a | |
4423 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4424 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4425 | * curly in order to force resolution as an anon hash. |
4426 | * | |
4427 | * XXX should probably propagate the outer expectation | |
4428 | * into eval"" to rely less on this hack, but that could | |
4429 | * potentially break current behavior of eval"". | |
4430 | * GSAR 97-07-21 | |
4431 | */ | |
4432 | t = s; | |
4433 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4434 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4435 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4436 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4437 | t++; | |
4438 | t++; | |
a0d0e21e | 4439 | } |
b8a4b1be | 4440 | else if (*s == 'q') { |
3280af22 | 4441 | if (++t < PL_bufend |
b8a4b1be | 4442 | && (!isALNUM(*t) |
3280af22 | 4443 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4444 | && !isALNUM(*t)))) |
4445 | { | |
abc667d1 | 4446 | /* skip q//-like construct */ |
f54cb97a | 4447 | const char *tmps; |
b8a4b1be GS |
4448 | char open, close, term; |
4449 | I32 brackets = 1; | |
4450 | ||
3280af22 | 4451 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4452 | t++; |
abc667d1 DM |
4453 | /* check for q => */ |
4454 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4455 | OPERATOR(HASHBRACK); | |
4456 | } | |
b8a4b1be GS |
4457 | term = *t; |
4458 | open = term; | |
4459 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4460 | term = tmps[5]; | |
4461 | close = term; | |
4462 | if (open == close) | |
3280af22 NIS |
4463 | for (t++; t < PL_bufend; t++) { |
4464 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4465 | t++; |
6d07e5e9 | 4466 | else if (*t == open) |
b8a4b1be GS |
4467 | break; |
4468 | } | |
abc667d1 | 4469 | else { |
3280af22 NIS |
4470 | for (t++; t < PL_bufend; t++) { |
4471 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4472 | t++; |
6d07e5e9 | 4473 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4474 | break; |
4475 | else if (*t == open) | |
4476 | brackets++; | |
4477 | } | |
abc667d1 DM |
4478 | } |
4479 | t++; | |
b8a4b1be | 4480 | } |
abc667d1 DM |
4481 | else |
4482 | /* skip plain q word */ | |
4483 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4484 | t += UTF8SKIP(t); | |
a0d0e21e | 4485 | } |
7e2040f0 | 4486 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4487 | t += UTF8SKIP(t); |
7e2040f0 | 4488 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4489 | t += UTF8SKIP(t); |
a0d0e21e | 4490 | } |
3280af22 | 4491 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4492 | t++; |
b8a4b1be GS |
4493 | /* if comma follows first term, call it an anon hash */ |
4494 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4495 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4496 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4497 | OPERATOR(HASHBRACK); |
3280af22 | 4498 | if (PL_expect == XREF) |
4e4e412b | 4499 | PL_expect = XTERM; |
a0d0e21e | 4500 | else { |
3280af22 NIS |
4501 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4502 | PL_expect = XSTATE; | |
a0d0e21e | 4503 | } |
8990e307 | 4504 | } |
a0d0e21e | 4505 | break; |
463ee0b2 | 4506 | } |
57843af0 | 4507 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4508 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4509 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4510 | TOKEN('{'); |
378cc40b | 4511 | case '}': |
79072805 LW |
4512 | rightbracket: |
4513 | s++; | |
3280af22 | 4514 | if (PL_lex_brackets <= 0) |
d98d5fff | 4515 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4516 | else |
3280af22 | 4517 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4518 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4519 | PL_lex_formbrack = 0; |
4520 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4521 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4522 | if (PL_expect & XFAKEBRACK) { |
4523 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4524 | PL_lex_state = LEX_INTERPEND; |
4525 | PL_bufptr = s; | |
5db06880 NC |
4526 | #if 0 |
4527 | if (PL_madskills) { | |
cd81e915 | 4528 | if (!PL_thiswhite) |
6b29d1f5 | 4529 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4530 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4531 | } |
4532 | #endif | |
cea2e8a9 | 4533 | return yylex(); /* ignore fake brackets */ |
79072805 | 4534 | } |
fa83b5b6 | 4535 | if (*s == '-' && s[1] == '>') |
3280af22 | 4536 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4537 | else if (*s != '[' && *s != '{') |
3280af22 | 4538 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4539 | } |
4540 | } | |
9059aa12 LW |
4541 | if (PL_expect & XFAKEBRACK) { |
4542 | PL_expect &= XENUMMASK; | |
3280af22 | 4543 | PL_bufptr = s; |
cea2e8a9 | 4544 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4545 | } |
cd81e915 | 4546 | start_force(PL_curforce); |
5db06880 NC |
4547 | if (PL_madskills) { |
4548 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4549 | CURMAD('_', PL_thiswhite); |
5db06880 | 4550 | } |
79072805 | 4551 | force_next('}'); |
5db06880 | 4552 | #ifdef PERL_MAD |
cd81e915 | 4553 | if (!PL_thistoken) |
6b29d1f5 | 4554 | PL_thistoken = newSVpvs(""); |
5db06880 | 4555 | #endif |
79072805 | 4556 | TOKEN(';'); |
378cc40b LW |
4557 | case '&': |
4558 | s++; | |
90771dc0 | 4559 | if (*s++ == '&') |
a0d0e21e | 4560 | AOPERATOR(ANDAND); |
378cc40b | 4561 | s--; |
3280af22 | 4562 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4563 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4564 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4565 | { |
57843af0 | 4566 | CopLINE_dec(PL_curcop); |
9014280d | 4567 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4568 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4569 | } |
79072805 | 4570 | BAop(OP_BIT_AND); |
463ee0b2 | 4571 | } |
79072805 | 4572 | |
3280af22 NIS |
4573 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4574 | if (*PL_tokenbuf) { | |
4575 | PL_expect = XOPERATOR; | |
4576 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4577 | } |
79072805 LW |
4578 | else |
4579 | PREREF('&'); | |
c07a80fd | 4580 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4581 | TERM('&'); |
4582 | ||
378cc40b LW |
4583 | case '|': |
4584 | s++; | |
90771dc0 | 4585 | if (*s++ == '|') |
a0d0e21e | 4586 | AOPERATOR(OROR); |
378cc40b | 4587 | s--; |
79072805 | 4588 | BOop(OP_BIT_OR); |
378cc40b LW |
4589 | case '=': |
4590 | s++; | |
748a9306 | 4591 | { |
90771dc0 NC |
4592 | const char tmp = *s++; |
4593 | if (tmp == '=') | |
4594 | Eop(OP_EQ); | |
4595 | if (tmp == '>') | |
4596 | OPERATOR(','); | |
4597 | if (tmp == '~') | |
4598 | PMop(OP_MATCH); | |
4599 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4600 | && strchr("+-*/%.^&|<",tmp)) | |
4601 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4602 | "Reversed %c= operator",(int)tmp); | |
4603 | s--; | |
4604 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4605 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4606 | { | |
4607 | if (PL_in_eval && !PL_rsfp) { | |
4608 | d = PL_bufend; | |
4609 | while (s < d) { | |
4610 | if (*s++ == '\n') { | |
4611 | incline(s); | |
4612 | if (strnEQ(s,"=cut",4)) { | |
4613 | s = strchr(s,'\n'); | |
4614 | if (s) | |
4615 | s++; | |
4616 | else | |
4617 | s = d; | |
4618 | incline(s); | |
4619 | goto retry; | |
4620 | } | |
4621 | } | |
a5f75d66 | 4622 | } |
90771dc0 | 4623 | goto retry; |
a5f75d66 | 4624 | } |
5db06880 NC |
4625 | #ifdef PERL_MAD |
4626 | if (PL_madskills) { | |
cd81e915 | 4627 | if (!PL_thiswhite) |
6b29d1f5 | 4628 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4629 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4630 | PL_bufend - PL_linestart); |
4631 | } | |
4632 | #endif | |
90771dc0 NC |
4633 | s = PL_bufend; |
4634 | PL_doextract = TRUE; | |
4635 | goto retry; | |
a5f75d66 | 4636 | } |
a0d0e21e | 4637 | } |
3280af22 | 4638 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4639 | const char *t = s; |
51882d45 | 4640 | #ifdef PERL_STRICT_CR |
c35e046a | 4641 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4642 | #else |
c35e046a | 4643 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4644 | #endif |
c35e046a | 4645 | t++; |
a0d0e21e LW |
4646 | if (*t == '\n' || *t == '#') { |
4647 | s--; | |
3280af22 | 4648 | PL_expect = XBLOCK; |
a0d0e21e LW |
4649 | goto leftbracket; |
4650 | } | |
79072805 | 4651 | } |
a0d0e21e LW |
4652 | yylval.ival = 0; |
4653 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4654 | case '!': |
4655 | s++; | |
90771dc0 NC |
4656 | { |
4657 | const char tmp = *s++; | |
4658 | if (tmp == '=') { | |
4659 | /* was this !=~ where !~ was meant? | |
4660 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4661 | ||
4662 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4663 | const char *t = s+1; | |
4664 | ||
4665 | while (t < PL_bufend && isSPACE(*t)) | |
4666 | ++t; | |
4667 | ||
4668 | if (*t == '/' || *t == '?' || | |
4669 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4670 | && !isALNUM(t[1])) || | |
4671 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4672 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4673 | "!=~ should be !~"); | |
4674 | } | |
4675 | Eop(OP_NE); | |
4676 | } | |
4677 | if (tmp == '~') | |
4678 | PMop(OP_NOT); | |
4679 | } | |
378cc40b LW |
4680 | s--; |
4681 | OPERATOR('!'); | |
4682 | case '<': | |
3280af22 | 4683 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4684 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4685 | check_uni(); |
79072805 LW |
4686 | if (s[1] == '<') |
4687 | s = scan_heredoc(s); | |
4688 | else | |
4689 | s = scan_inputsymbol(s); | |
4690 | TERM(sublex_start()); | |
378cc40b LW |
4691 | } |
4692 | s++; | |
90771dc0 NC |
4693 | { |
4694 | char tmp = *s++; | |
4695 | if (tmp == '<') | |
4696 | SHop(OP_LEFT_SHIFT); | |
4697 | if (tmp == '=') { | |
4698 | tmp = *s++; | |
4699 | if (tmp == '>') | |
4700 | Eop(OP_NCMP); | |
4701 | s--; | |
4702 | Rop(OP_LE); | |
4703 | } | |
395c3793 | 4704 | } |
378cc40b | 4705 | s--; |
79072805 | 4706 | Rop(OP_LT); |
378cc40b LW |
4707 | case '>': |
4708 | s++; | |
90771dc0 NC |
4709 | { |
4710 | const char tmp = *s++; | |
4711 | if (tmp == '>') | |
4712 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4713 | else if (tmp == '=') |
90771dc0 NC |
4714 | Rop(OP_GE); |
4715 | } | |
378cc40b | 4716 | s--; |
79072805 | 4717 | Rop(OP_GT); |
378cc40b LW |
4718 | |
4719 | case '$': | |
bbce6d69 | 4720 | CLINE; |
4721 | ||
3280af22 NIS |
4722 | if (PL_expect == XOPERATOR) { |
4723 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4724 | PL_expect = XTERM; | |
c445ea15 | 4725 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4726 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4727 | } |
8990e307 | 4728 | } |
a0d0e21e | 4729 | |
7e2040f0 | 4730 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4731 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4732 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4733 | sizeof PL_tokenbuf - 1, FALSE); | |
4734 | if (PL_expect == XOPERATOR) | |
4735 | no_op("Array length", s); | |
3280af22 | 4736 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4737 | PREREF(DOLSHARP); |
3280af22 NIS |
4738 | PL_expect = XOPERATOR; |
4739 | PL_pending_ident = '#'; | |
463ee0b2 | 4740 | TOKEN(DOLSHARP); |
79072805 | 4741 | } |
bbce6d69 | 4742 | |
3280af22 | 4743 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4744 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4745 | sizeof PL_tokenbuf - 1, FALSE); | |
4746 | if (PL_expect == XOPERATOR) | |
4747 | no_op("Scalar", s); | |
3280af22 NIS |
4748 | if (!PL_tokenbuf[1]) { |
4749 | if (s == PL_bufend) | |
bbce6d69 | 4750 | yyerror("Final $ should be \\$ or $name"); |
4751 | PREREF('$'); | |
8990e307 | 4752 | } |
a0d0e21e | 4753 | |
bbce6d69 | 4754 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4755 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4756 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4757 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4758 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4759 | TERM(THING); | |
4760 | } | |
4761 | ||
ff68c719 | 4762 | d = s; |
90771dc0 NC |
4763 | { |
4764 | const char tmp = *s; | |
4765 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4766 | s = SKIPSPACE1(s); |
ff68c719 | 4767 | |
90771dc0 NC |
4768 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4769 | && intuit_more(s)) { | |
4770 | if (*s == '[') { | |
4771 | PL_tokenbuf[0] = '@'; | |
4772 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4773 | char *t = s+1; |
4774 | ||
4775 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4776 | t++; | |
90771dc0 | 4777 | if (*t++ == ',') { |
29595ff2 | 4778 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4779 | while (t < PL_bufend && *t != ']') |
4780 | t++; | |
9014280d | 4781 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4782 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4783 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4784 | } |
748a9306 | 4785 | } |
93a17b20 | 4786 | } |
90771dc0 NC |
4787 | else if (*s == '{') { |
4788 | char *t; | |
4789 | PL_tokenbuf[0] = '%'; | |
4790 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4791 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4792 | { | |
4793 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4794 | do { |
4795 | t++; | |
4796 | } while (isSPACE(*t)); | |
90771dc0 | 4797 | if (isIDFIRST_lazy_if(t,UTF)) { |
5f66b61c | 4798 | STRLEN dummylen; |
90771dc0 | 4799 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5f66b61c | 4800 | &dummylen); |
c35e046a AL |
4801 | while (isSPACE(*t)) |
4802 | t++; | |
90771dc0 NC |
4803 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
4804 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4805 | "You need to quote \"%s\"", | |
4806 | tmpbuf); | |
4807 | } | |
4808 | } | |
4809 | } | |
93a17b20 | 4810 | } |
bbce6d69 | 4811 | |
90771dc0 NC |
4812 | PL_expect = XOPERATOR; |
4813 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4814 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4815 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4816 | PL_expect = XOPERATOR; | |
4817 | else if (strchr("$@\"'`q", *s)) | |
4818 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4819 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4820 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4821 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4822 | char tmpbuf[sizeof PL_tokenbuf]; | |
4823 | int t2; | |
4824 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4825 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4826 | /* binary operators exclude handle interpretations */ |
4827 | switch (t2) { | |
4828 | case -KEY_x: | |
4829 | case -KEY_eq: | |
4830 | case -KEY_ne: | |
4831 | case -KEY_gt: | |
4832 | case -KEY_lt: | |
4833 | case -KEY_ge: | |
4834 | case -KEY_le: | |
4835 | case -KEY_cmp: | |
4836 | break; | |
4837 | default: | |
4838 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4839 | break; | |
4840 | } | |
4841 | } | |
4842 | else { | |
4843 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4844 | } |
4845 | } | |
90771dc0 NC |
4846 | else if (isDIGIT(*s)) |
4847 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4848 | else if (*s == '.' && isDIGIT(s[1])) | |
4849 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4850 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4851 | && !isSPACE(s[1]) && s[1] != '=') | |
4852 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4853 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4854 | && s[1] != '/') | |
4855 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4856 | XXX except DORDOR operator | |
4857 | */ | |
4858 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4859 | && s[2] != '=') | |
4860 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4861 | } |
bbce6d69 | 4862 | } |
3280af22 | 4863 | PL_pending_ident = '$'; |
79072805 | 4864 | TOKEN('$'); |
378cc40b LW |
4865 | |
4866 | case '@': | |
3280af22 | 4867 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4868 | no_op("Array", s); |
3280af22 NIS |
4869 | PL_tokenbuf[0] = '@'; |
4870 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4871 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4872 | PREREF('@'); |
4873 | } | |
3280af22 | 4874 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4875 | s = SKIPSPACE1(s); |
3280af22 | 4876 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4877 | if (*s == '{') |
3280af22 | 4878 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4879 | |
4880 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4881 | if (*s == '[' || *s == '{') { |
4882 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4883 | const char *t = s + 1; |
7e2040f0 | 4884 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4885 | t++; |
4886 | if (*t == '}' || *t == ']') { | |
4887 | t++; | |
29595ff2 | 4888 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4889 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4890 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4891 | (int)(t-PL_bufptr), PL_bufptr, |
4892 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4893 | } |
93a17b20 LW |
4894 | } |
4895 | } | |
463ee0b2 | 4896 | } |
3280af22 | 4897 | PL_pending_ident = '@'; |
79072805 | 4898 | TERM('@'); |
378cc40b | 4899 | |
c963b151 | 4900 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4901 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4902 | s += 2; | |
4903 | AOPERATOR(DORDOR); | |
4904 | } | |
c963b151 BD |
4905 | case '?': /* may either be conditional or pattern */ |
4906 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4907 | char tmp = *s++; |
c963b151 BD |
4908 | if(tmp == '?') { |
4909 | OPERATOR('?'); | |
4910 | } | |
4911 | else { | |
4912 | tmp = *s++; | |
4913 | if(tmp == '/') { | |
4914 | /* A // operator. */ | |
4915 | AOPERATOR(DORDOR); | |
4916 | } | |
4917 | else { | |
4918 | s--; | |
4919 | Mop(OP_DIVIDE); | |
4920 | } | |
4921 | } | |
4922 | } | |
4923 | else { | |
4924 | /* Disable warning on "study /blah/" */ | |
4925 | if (PL_oldoldbufptr == PL_last_uni | |
4926 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4927 | || memNE(PL_last_uni, "study", 5) | |
4928 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4929 | )) | |
4930 | check_uni(); | |
4931 | s = scan_pat(s,OP_MATCH); | |
4932 | TERM(sublex_start()); | |
4933 | } | |
378cc40b LW |
4934 | |
4935 | case '.': | |
51882d45 GS |
4936 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4937 | #ifdef PERL_STRICT_CR | |
4938 | && s[1] == '\n' | |
4939 | #else | |
4940 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4941 | #endif | |
4942 | && (s == PL_linestart || s[-1] == '\n') ) | |
4943 | { | |
3280af22 NIS |
4944 | PL_lex_formbrack = 0; |
4945 | PL_expect = XSTATE; | |
79072805 LW |
4946 | goto rightbracket; |
4947 | } | |
3280af22 | 4948 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4949 | char tmp = *s++; |
a687059c LW |
4950 | if (*s == tmp) { |
4951 | s++; | |
2f3197b3 LW |
4952 | if (*s == tmp) { |
4953 | s++; | |
79072805 | 4954 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4955 | } |
4956 | else | |
79072805 | 4957 | yylval.ival = 0; |
378cc40b | 4958 | OPERATOR(DOTDOT); |
a687059c | 4959 | } |
3280af22 | 4960 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4961 | check_uni(); |
79072805 | 4962 | Aop(OP_CONCAT); |
378cc40b LW |
4963 | } |
4964 | /* FALL THROUGH */ | |
4965 | case '0': case '1': case '2': case '3': case '4': | |
4966 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4967 | s = scan_num(s, &yylval); |
931e0695 | 4968 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 4969 | if (PL_expect == XOPERATOR) |
8990e307 | 4970 | no_op("Number",s); |
79072805 LW |
4971 | TERM(THING); |
4972 | ||
4973 | case '\'': | |
5db06880 | 4974 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4975 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4976 | if (PL_expect == XOPERATOR) { |
4977 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4978 | PL_expect = XTERM; | |
c445ea15 | 4979 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4980 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4981 | } |
463ee0b2 | 4982 | else |
8990e307 | 4983 | no_op("String",s); |
463ee0b2 | 4984 | } |
79072805 | 4985 | if (!s) |
d4c19fe8 | 4986 | missingterm(NULL); |
79072805 LW |
4987 | yylval.ival = OP_CONST; |
4988 | TERM(sublex_start()); | |
4989 | ||
4990 | case '"': | |
5db06880 | 4991 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4992 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4993 | if (PL_expect == XOPERATOR) { |
4994 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4995 | PL_expect = XTERM; | |
c445ea15 | 4996 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4997 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4998 | } |
463ee0b2 | 4999 | else |
8990e307 | 5000 | no_op("String",s); |
463ee0b2 | 5001 | } |
79072805 | 5002 | if (!s) |
d4c19fe8 | 5003 | missingterm(NULL); |
4633a7c4 | 5004 | yylval.ival = OP_CONST; |
cfd0369c NC |
5005 | /* FIXME. I think that this can be const if char *d is replaced by |
5006 | more localised variables. */ | |
3280af22 | 5007 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5008 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
5009 | yylval.ival = OP_STRINGIFY; |
5010 | break; | |
5011 | } | |
5012 | } | |
79072805 LW |
5013 | TERM(sublex_start()); |
5014 | ||
5015 | case '`': | |
5db06880 | 5016 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5017 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5018 | if (PL_expect == XOPERATOR) |
8990e307 | 5019 | no_op("Backticks",s); |
79072805 | 5020 | if (!s) |
d4c19fe8 | 5021 | missingterm(NULL); |
9b201d7d | 5022 | readpipe_override(); |
79072805 LW |
5023 | TERM(sublex_start()); |
5024 | ||
5025 | case '\\': | |
5026 | s++; | |
041457d9 | 5027 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 5028 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 5029 | *s, *s); |
3280af22 | 5030 | if (PL_expect == XOPERATOR) |
8990e307 | 5031 | no_op("Backslash",s); |
79072805 LW |
5032 | OPERATOR(REFGEN); |
5033 | ||
a7cb1f99 | 5034 | case 'v': |
e526c9e6 | 5035 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5036 | char *start = s + 2; |
dd629d5b | 5037 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5038 | start++; |
5039 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 5040 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
5041 | TERM(THING); |
5042 | } | |
e526c9e6 | 5043 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5044 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5045 | || PL_expect == XREF || PL_expect == XSTATE | |
5046 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 5047 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 5048 | const char c = *start; |
e526c9e6 GS |
5049 | GV *gv; |
5050 | *start = '\0'; | |
f776e3cd | 5051 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
5052 | *start = c; |
5053 | if (!gv) { | |
b73d6f50 | 5054 | s = scan_num(s, &yylval); |
e526c9e6 GS |
5055 | TERM(THING); |
5056 | } | |
5057 | } | |
a7cb1f99 GS |
5058 | } |
5059 | goto keylookup; | |
79072805 | 5060 | case 'x': |
3280af22 | 5061 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5062 | s++; |
5063 | Mop(OP_REPEAT); | |
2f3197b3 | 5064 | } |
79072805 LW |
5065 | goto keylookup; |
5066 | ||
378cc40b | 5067 | case '_': |
79072805 LW |
5068 | case 'a': case 'A': |
5069 | case 'b': case 'B': | |
5070 | case 'c': case 'C': | |
5071 | case 'd': case 'D': | |
5072 | case 'e': case 'E': | |
5073 | case 'f': case 'F': | |
5074 | case 'g': case 'G': | |
5075 | case 'h': case 'H': | |
5076 | case 'i': case 'I': | |
5077 | case 'j': case 'J': | |
5078 | case 'k': case 'K': | |
5079 | case 'l': case 'L': | |
5080 | case 'm': case 'M': | |
5081 | case 'n': case 'N': | |
5082 | case 'o': case 'O': | |
5083 | case 'p': case 'P': | |
5084 | case 'q': case 'Q': | |
5085 | case 'r': case 'R': | |
5086 | case 's': case 'S': | |
5087 | case 't': case 'T': | |
5088 | case 'u': case 'U': | |
a7cb1f99 | 5089 | case 'V': |
79072805 LW |
5090 | case 'w': case 'W': |
5091 | case 'X': | |
5092 | case 'y': case 'Y': | |
5093 | case 'z': case 'Z': | |
5094 | ||
49dc05e3 | 5095 | keylookup: { |
90771dc0 | 5096 | I32 tmp; |
10edeb5d JH |
5097 | |
5098 | orig_keyword = 0; | |
5099 | gv = NULL; | |
5100 | gvp = NULL; | |
49dc05e3 | 5101 | |
3280af22 NIS |
5102 | PL_bufptr = s; |
5103 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5104 | |
5105 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5106 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5107 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5108 | (PL_tokenbuf[0] == 'q' && | |
5109 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5110 | |
5111 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5112 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5113 | goto just_a_word; |
5114 | ||
3643fb5f | 5115 | d = s; |
3280af22 | 5116 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5117 | d++; /* no comments skipped here, or s### is misparsed */ |
5118 | ||
5119 | /* Is this a label? */ | |
3280af22 NIS |
5120 | if (!tmp && PL_expect == XSTATE |
5121 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5122 | s = d + 1; |
63031daf | 5123 | yylval.pval = CopLABEL_alloc(PL_tokenbuf); |
8ebc5c01 | 5124 | CLINE; |
5125 | TOKEN(LABEL); | |
3643fb5f CS |
5126 | } |
5127 | ||
5128 | /* Check for keywords */ | |
5458a98a | 5129 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5130 | |
5131 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5132 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5133 | CLINE; |
d0a148a6 NC |
5134 | yylval.opval |
5135 | = (OP*)newSVOP(OP_CONST, 0, | |
5136 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
5137 | yylval.opval->op_private = OPpCONST_BARE; |
5138 | TERM(WORD); | |
5139 | } | |
5140 | ||
a0d0e21e | 5141 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5142 | GV *ogv = NULL; /* override (winner) */ |
5143 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5144 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5145 | CV *cv; |
90e5519e | 5146 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5147 | (cv = GvCVu(gv))) |
5148 | { | |
5149 | if (GvIMPORTED_CV(gv)) | |
5150 | ogv = gv; | |
5151 | else if (! CvMETHOD(cv)) | |
5152 | hgv = gv; | |
5153 | } | |
5154 | if (!ogv && | |
3280af22 NIS |
5155 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
5156 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
5157 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5158 | { | |
5159 | ogv = gv; | |
5160 | } | |
5161 | } | |
5162 | if (ogv) { | |
30fe34ed | 5163 | orig_keyword = tmp; |
56f7f34b | 5164 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5165 | } |
5166 | else if (gv && !gvp | |
5167 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 5168 | && GvCVu(gv) |
017a3ce5 | 5169 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
5170 | { |
5171 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5172 | } |
56f7f34b CS |
5173 | else { /* no override */ |
5174 | tmp = -tmp; | |
ac206dc8 | 5175 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5176 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5177 | "dump() better written as CORE::dump()"); |
5178 | } | |
a0714e2c | 5179 | gv = NULL; |
56f7f34b | 5180 | gvp = 0; |
041457d9 DM |
5181 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5182 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5183 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5184 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5185 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5186 | } |
a0d0e21e LW |
5187 | } |
5188 | ||
5189 | reserved_word: | |
5190 | switch (tmp) { | |
79072805 LW |
5191 | |
5192 | default: /* not a keyword */ | |
0bfa2a8a NC |
5193 | /* Trade off - by using this evil construction we can pull the |
5194 | variable gv into the block labelled keylookup. If not, then | |
5195 | we have to give it function scope so that the goto from the | |
5196 | earlier ':' case doesn't bypass the initialisation. */ | |
5197 | if (0) { | |
5198 | just_a_word_zero_gv: | |
5199 | gv = NULL; | |
5200 | gvp = NULL; | |
8bee0991 | 5201 | orig_keyword = 0; |
0bfa2a8a | 5202 | } |
93a17b20 | 5203 | just_a_word: { |
96e4d5b1 | 5204 | SV *sv; |
ce29ac45 | 5205 | int pkgname = 0; |
f54cb97a | 5206 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5207 | CV *cv; |
5db06880 | 5208 | #ifdef PERL_MAD |
cd81e915 | 5209 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5210 | #endif |
5211 | ||
8990e307 LW |
5212 | |
5213 | /* Get the rest if it looks like a package qualifier */ | |
5214 | ||
155aba94 | 5215 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5216 | STRLEN morelen; |
3280af22 | 5217 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5218 | TRUE, &morelen); |
5219 | if (!morelen) | |
cea2e8a9 | 5220 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5221 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5222 | len += morelen; |
ce29ac45 | 5223 | pkgname = 1; |
a0d0e21e | 5224 | } |
8990e307 | 5225 | |
3280af22 NIS |
5226 | if (PL_expect == XOPERATOR) { |
5227 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5228 | CopLINE_dec(PL_curcop); |
9014280d | 5229 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5230 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5231 | } |
5232 | else | |
54310121 | 5233 | no_op("Bareword",s); |
463ee0b2 | 5234 | } |
8990e307 | 5235 | |
c3e0f903 GS |
5236 | /* Look for a subroutine with this name in current package, |
5237 | unless name is "Foo::", in which case Foo is a bearword | |
5238 | (and a package name). */ | |
5239 | ||
5db06880 | 5240 | if (len > 2 && !PL_madskills && |
3280af22 | 5241 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5242 | { |
f776e3cd | 5243 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5244 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5245 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5246 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5247 | PL_tokenbuf); |
c3e0f903 | 5248 | len -= 2; |
3280af22 | 5249 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5250 | gv = NULL; |
c3e0f903 GS |
5251 | gvp = 0; |
5252 | } | |
5253 | else { | |
62d55b22 NC |
5254 | if (!gv) { |
5255 | /* Mustn't actually add anything to a symbol table. | |
5256 | But also don't want to "initialise" any placeholder | |
5257 | constants that might already be there into full | |
5258 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5259 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5260 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5261 | } |
b3d904f3 | 5262 | len = 0; |
c3e0f903 GS |
5263 | } |
5264 | ||
5265 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5266 | |
49dc05e3 | 5267 | if (gvp) { |
396482e1 | 5268 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5269 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5270 | } |
8a7a129d NC |
5271 | else { |
5272 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5273 | If len is non-zero, then it will be the true length, | |
5274 | and so the scalar will be created correctly. */ | |
5275 | sv = newSVpv(PL_tokenbuf,len); | |
5276 | } | |
5db06880 | 5277 | #ifdef PERL_MAD |
cd81e915 NC |
5278 | if (PL_madskills && !PL_thistoken) { |
5279 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5280 | PL_thistoken = newSVpv(start,s - start); | |
5281 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5282 | } |
5283 | #endif | |
8990e307 | 5284 | |
a0d0e21e LW |
5285 | /* Presume this is going to be a bareword of some sort. */ |
5286 | ||
5287 | CLINE; | |
49dc05e3 | 5288 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5289 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5290 | /* UTF-8 package name? */ |
5291 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5292 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5293 | SvUTF8_on(sv); |
a0d0e21e | 5294 | |
c3e0f903 GS |
5295 | /* And if "Foo::", then that's what it certainly is. */ |
5296 | ||
5297 | if (len) | |
5298 | goto safe_bareword; | |
5299 | ||
5069cc75 NC |
5300 | /* Do the explicit type check so that we don't need to force |
5301 | the initialisation of the symbol table to have a real GV. | |
5302 | Beware - gv may not really be a PVGV, cv may not really be | |
5303 | a PVCV, (because of the space optimisations that gv_init | |
5304 | understands) But they're true if for this symbol there is | |
5305 | respectively a typeglob and a subroutine. | |
5306 | */ | |
5307 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5308 | /* Real typeglob, so get the real subroutine: */ | |
5309 | ? GvCVu(gv) | |
5310 | /* A proxy for a subroutine in this package? */ | |
5311 | : SvOK(gv) ? (CV *) gv : NULL) | |
5312 | : NULL; | |
5313 | ||
8990e307 LW |
5314 | /* See if it's the indirect object for a list operator. */ |
5315 | ||
3280af22 NIS |
5316 | if (PL_oldoldbufptr && |
5317 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5318 | (PL_oldoldbufptr == PL_last_lop |
5319 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5320 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5321 | (PL_expect == XREF || |
5322 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5323 | { |
748a9306 LW |
5324 | bool immediate_paren = *s == '('; |
5325 | ||
a0d0e21e | 5326 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5327 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5328 | #ifdef PERL_MAD |
cd81e915 | 5329 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5330 | #endif |
a0d0e21e LW |
5331 | |
5332 | /* Two barewords in a row may indicate method call. */ | |
5333 | ||
62d55b22 NC |
5334 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5335 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5336 | return REPORT(tmp); |
a0d0e21e LW |
5337 | |
5338 | /* If not a declared subroutine, it's an indirect object. */ | |
5339 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5340 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5341 | |
7294df96 RGS |
5342 | if ( |
5343 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5344 | ((!gv || !cv) && |
a9ef352a | 5345 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5346 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5347 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5348 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5349 | ) | |
a9ef352a | 5350 | { |
3280af22 | 5351 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5352 | goto bareword; |
93a17b20 LW |
5353 | } |
5354 | } | |
8990e307 | 5355 | |
3280af22 | 5356 | PL_expect = XOPERATOR; |
5db06880 NC |
5357 | #ifdef PERL_MAD |
5358 | if (isSPACE(*s)) | |
cd81e915 NC |
5359 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5360 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5361 | #else |
8990e307 | 5362 | s = skipspace(s); |
5db06880 | 5363 | #endif |
1c3923b3 GS |
5364 | |
5365 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5366 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5367 | CLINE; |
5368 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5369 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5370 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5371 | TERM(WORD); |
5372 | } | |
5373 | ||
5374 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5375 | if (*s == '(') { |
79072805 | 5376 | CLINE; |
5069cc75 | 5377 | if (cv) { |
c35e046a AL |
5378 | d = s + 1; |
5379 | while (SPACE_OR_TAB(*d)) | |
5380 | d++; | |
62d55b22 | 5381 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5382 | s = d + 1; |
5db06880 NC |
5383 | #ifdef PERL_MAD |
5384 | if (PL_madskills) { | |
cd81e915 NC |
5385 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5386 | sv_catpvn(PL_thistoken, par, s - par); | |
5387 | if (PL_nextwhite) { | |
5388 | sv_free(PL_nextwhite); | |
5389 | PL_nextwhite = 0; | |
5db06880 NC |
5390 | } |
5391 | } | |
5392 | #endif | |
96e4d5b1 | 5393 | goto its_constant; |
5394 | } | |
5395 | } | |
5db06880 NC |
5396 | #ifdef PERL_MAD |
5397 | if (PL_madskills) { | |
cd81e915 NC |
5398 | PL_nextwhite = PL_thiswhite; |
5399 | PL_thiswhite = 0; | |
5db06880 | 5400 | } |
cd81e915 | 5401 | start_force(PL_curforce); |
5db06880 | 5402 | #endif |
9ded7720 | 5403 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5404 | PL_expect = XOPERATOR; |
5db06880 NC |
5405 | #ifdef PERL_MAD |
5406 | if (PL_madskills) { | |
cd81e915 NC |
5407 | PL_nextwhite = nextPL_nextwhite; |
5408 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5409 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5410 | } |
5411 | #endif | |
93a17b20 | 5412 | force_next(WORD); |
c07a80fd | 5413 | yylval.ival = 0; |
463ee0b2 | 5414 | TOKEN('&'); |
79072805 | 5415 | } |
93a17b20 | 5416 | |
a0d0e21e | 5417 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5418 | |
62d55b22 | 5419 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5420 | PL_last_lop = PL_oldbufptr; |
5421 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5422 | PREBLOCK(METHOD); |
463ee0b2 LW |
5423 | } |
5424 | ||
8990e307 LW |
5425 | /* If followed by a bareword, see if it looks like indir obj. */ |
5426 | ||
30fe34ed RGS |
5427 | if (!orig_keyword |
5428 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5429 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5430 | return REPORT(tmp); |
93a17b20 | 5431 | |
8990e307 LW |
5432 | /* Not a method, so call it a subroutine (if defined) */ |
5433 | ||
5069cc75 | 5434 | if (cv) { |
0453d815 | 5435 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5436 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5437 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5438 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5439 | /* Check for a constant sub */ |
62d55b22 | 5440 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5441 | its_constant: |
5442 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5443 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5444 | yylval.opval->op_private = 0; |
5445 | TOKEN(WORD); | |
89bfa8cd | 5446 | } |
5447 | ||
a5f75d66 | 5448 | /* Resolve to GV now. */ |
62d55b22 | 5449 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5450 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5451 | assert (SvTYPE(gv) == SVt_PVGV); |
5452 | /* cv must have been some sort of placeholder, so | |
5453 | now needs replacing with a real code reference. */ | |
5454 | cv = GvCV(gv); | |
5455 | } | |
5456 | ||
a5f75d66 AD |
5457 | op_free(yylval.opval); |
5458 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5459 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5460 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5461 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5462 | /* Is there a prototype? */ |
5db06880 NC |
5463 | if ( |
5464 | #ifdef PERL_MAD | |
5465 | cv && | |
5466 | #endif | |
d9f2850e RGS |
5467 | SvPOK(cv)) |
5468 | { | |
5f66b61c AL |
5469 | STRLEN protolen; |
5470 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5471 | if (!protolen) | |
4633a7c4 | 5472 | TERM(FUNC0SUB); |
8c28b960 | 5473 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5474 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5475 | while (*proto == ';') |
5476 | proto++; | |
7a52d87a | 5477 | if (*proto == '&' && *s == '{') { |
10edeb5d JH |
5478 | sv_setpv(PL_subname, |
5479 | (const char *) | |
5480 | (PL_curstash ? | |
5481 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
5482 | PREBLOCK(LSTOPSUB); |
5483 | } | |
a9ef352a | 5484 | } |
5db06880 NC |
5485 | #ifdef PERL_MAD |
5486 | { | |
5487 | if (PL_madskills) { | |
cd81e915 NC |
5488 | PL_nextwhite = PL_thiswhite; |
5489 | PL_thiswhite = 0; | |
5db06880 | 5490 | } |
cd81e915 | 5491 | start_force(PL_curforce); |
5db06880 NC |
5492 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5493 | PL_expect = XTERM; | |
5494 | if (PL_madskills) { | |
cd81e915 NC |
5495 | PL_nextwhite = nextPL_nextwhite; |
5496 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5497 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5498 | } |
5499 | force_next(WORD); | |
5500 | TOKEN(NOAMP); | |
5501 | } | |
5502 | } | |
5503 | ||
5504 | /* Guess harder when madskills require "best effort". */ | |
5505 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5506 | int probable_sub = 0; | |
5507 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5508 | probable_sub = 1; | |
5509 | else if (isALPHA(*s)) { | |
5510 | char tmpbuf[1024]; | |
5511 | STRLEN tmplen; | |
5512 | d = s; | |
5513 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5514 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5515 | probable_sub = 1; |
5516 | else { | |
5517 | while (d < PL_bufend && isSPACE(*d)) | |
5518 | d++; | |
5519 | if (*d == '=' && d[1] == '>') | |
5520 | probable_sub = 1; | |
5521 | } | |
5522 | } | |
5523 | if (probable_sub) { | |
5524 | gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV); | |
5525 | op_free(yylval.opval); | |
5526 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5527 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5528 | PL_last_lop = PL_oldbufptr; | |
5529 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5530 | PL_nextwhite = PL_thiswhite; |
5531 | PL_thiswhite = 0; | |
5532 | start_force(PL_curforce); | |
5db06880 NC |
5533 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5534 | PL_expect = XTERM; | |
cd81e915 NC |
5535 | PL_nextwhite = nextPL_nextwhite; |
5536 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5537 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5538 | force_next(WORD); |
5539 | TOKEN(NOAMP); | |
5540 | } | |
5541 | #else | |
9ded7720 | 5542 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5543 | PL_expect = XTERM; |
8990e307 LW |
5544 | force_next(WORD); |
5545 | TOKEN(NOAMP); | |
5db06880 | 5546 | #endif |
8990e307 | 5547 | } |
748a9306 | 5548 | |
8990e307 LW |
5549 | /* Call it a bare word */ |
5550 | ||
5603f27d GS |
5551 | if (PL_hints & HINT_STRICT_SUBS) |
5552 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5553 | else { | |
5554 | bareword: | |
041457d9 DM |
5555 | if (lastchar != '-') { |
5556 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5557 | d = PL_tokenbuf; |
5558 | while (isLOWER(*d)) | |
5559 | d++; | |
238ae712 | 5560 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 5561 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5562 | PL_tokenbuf); |
5563 | } | |
748a9306 LW |
5564 | } |
5565 | } | |
c3e0f903 GS |
5566 | |
5567 | safe_bareword: | |
3792a11b NC |
5568 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5569 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5570 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5571 | "Operator or semicolon missing before %c%s", |
3280af22 | 5572 | lastchar, PL_tokenbuf); |
9014280d | 5573 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5574 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5575 | lastchar, lastchar); |
5576 | } | |
93a17b20 | 5577 | TOKEN(WORD); |
79072805 | 5578 | } |
79072805 | 5579 | |
68dc0745 | 5580 | case KEY___FILE__: |
46fc3d4c | 5581 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5582 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5583 | TERM(THING); |
5584 | ||
79072805 | 5585 | case KEY___LINE__: |
cf2093f6 | 5586 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5587 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5588 | TERM(THING); |
68dc0745 | 5589 | |
5590 | case KEY___PACKAGE__: | |
5591 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5592 | (PL_curstash |
5aaec2b4 | 5593 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5594 | : &PL_sv_undef)); |
79072805 | 5595 | TERM(THING); |
79072805 | 5596 | |
e50aee73 | 5597 | case KEY___DATA__: |
79072805 LW |
5598 | case KEY___END__: { |
5599 | GV *gv; | |
3280af22 | 5600 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5601 | const char *pname = "main"; |
3280af22 | 5602 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5603 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5604 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5605 | SVt_PVIO); | |
a5f75d66 | 5606 | GvMULTI_on(gv); |
79072805 | 5607 | if (!GvIO(gv)) |
a0d0e21e | 5608 | GvIOp(gv) = newIO(); |
3280af22 | 5609 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5610 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5611 | { | |
f54cb97a | 5612 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5613 | fcntl(fd,F_SETFD,fd >= 3); |
5614 | } | |
79072805 | 5615 | #endif |
fd049845 | 5616 | /* Mark this internal pseudo-handle as clean */ |
5617 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5618 | if (PL_preprocess) |
50952442 | 5619 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5620 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5621 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5622 | else |
50952442 | 5623 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5624 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5625 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5626 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5627 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5628 | if (PL_bufend-PL_bufptr > 2 |
5629 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5630 | { |
5631 | Off_t loc = 0; | |
50952442 | 5632 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5633 | loc = PerlIO_tell(PL_rsfp); |
5634 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5635 | } | |
2986a63f JH |
5636 | #ifdef NETWARE |
5637 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5638 | #else | |
c39cd008 | 5639 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5640 | #endif /* NETWARE */ |
1143fce0 JH |
5641 | #ifdef PERLIO_IS_STDIO /* really? */ |
5642 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5643 | /* XXX see note in do_binmode() */ |
5644 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5645 | # endif |
5646 | #endif | |
c39cd008 GS |
5647 | if (loc > 0) |
5648 | PerlIO_seek(PL_rsfp, loc, 0); | |
5649 | } | |
5650 | } | |
5651 | #endif | |
7948272d | 5652 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5653 | if (!IN_BYTES) { |
5654 | if (UTF) | |
5655 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5656 | else if (PL_encoding) { | |
5657 | SV *name; | |
5658 | dSP; | |
5659 | ENTER; | |
5660 | SAVETMPS; | |
5661 | PUSHMARK(sp); | |
5662 | EXTEND(SP, 1); | |
5663 | XPUSHs(PL_encoding); | |
5664 | PUTBACK; | |
5665 | call_method("name", G_SCALAR); | |
5666 | SPAGAIN; | |
5667 | name = POPs; | |
5668 | PUTBACK; | |
bfed75c6 | 5669 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5670 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 5671 | SVfARG(name))); |
52d2e0f4 JH |
5672 | FREETMPS; |
5673 | LEAVE; | |
5674 | } | |
5675 | } | |
7948272d | 5676 | #endif |
5db06880 NC |
5677 | #ifdef PERL_MAD |
5678 | if (PL_madskills) { | |
cd81e915 NC |
5679 | if (PL_realtokenstart >= 0) { |
5680 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5681 | if (!PL_endwhite) | |
6b29d1f5 | 5682 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5683 | sv_catsv(PL_endwhite, PL_thiswhite); |
5684 | PL_thiswhite = 0; | |
5685 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5686 | PL_realtokenstart = -1; | |
5db06880 | 5687 | } |
cd81e915 NC |
5688 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5689 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5690 | } |
5691 | #endif | |
4608196e | 5692 | PL_rsfp = NULL; |
79072805 LW |
5693 | } |
5694 | goto fake_eof; | |
e929a76b | 5695 | } |
de3bb511 | 5696 | |
8990e307 | 5697 | case KEY_AUTOLOAD: |
ed6116ce | 5698 | case KEY_DESTROY: |
79072805 | 5699 | case KEY_BEGIN: |
3c10abe3 | 5700 | case KEY_UNITCHECK: |
7d30b5c4 | 5701 | case KEY_CHECK: |
7d07dbc2 | 5702 | case KEY_INIT: |
7d30b5c4 | 5703 | case KEY_END: |
3280af22 NIS |
5704 | if (PL_expect == XSTATE) { |
5705 | s = PL_bufptr; | |
93a17b20 | 5706 | goto really_sub; |
79072805 LW |
5707 | } |
5708 | goto just_a_word; | |
5709 | ||
a0d0e21e LW |
5710 | case KEY_CORE: |
5711 | if (*s == ':' && s[1] == ':') { | |
5712 | s += 2; | |
748a9306 | 5713 | d = s; |
3280af22 | 5714 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5715 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5716 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5717 | if (tmp < 0) |
5718 | tmp = -tmp; | |
850e8516 | 5719 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5720 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5721 | orig_keyword = tmp; |
a0d0e21e LW |
5722 | goto reserved_word; |
5723 | } | |
5724 | goto just_a_word; | |
5725 | ||
463ee0b2 LW |
5726 | case KEY_abs: |
5727 | UNI(OP_ABS); | |
5728 | ||
79072805 LW |
5729 | case KEY_alarm: |
5730 | UNI(OP_ALARM); | |
5731 | ||
5732 | case KEY_accept: | |
a0d0e21e | 5733 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5734 | |
463ee0b2 LW |
5735 | case KEY_and: |
5736 | OPERATOR(ANDOP); | |
5737 | ||
79072805 | 5738 | case KEY_atan2: |
a0d0e21e | 5739 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5740 | |
79072805 | 5741 | case KEY_bind: |
a0d0e21e | 5742 | LOP(OP_BIND,XTERM); |
79072805 LW |
5743 | |
5744 | case KEY_binmode: | |
1c1fc3ea | 5745 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5746 | |
5747 | case KEY_bless: | |
a0d0e21e | 5748 | LOP(OP_BLESS,XTERM); |
79072805 | 5749 | |
0d863452 RH |
5750 | case KEY_break: |
5751 | FUN0(OP_BREAK); | |
5752 | ||
79072805 LW |
5753 | case KEY_chop: |
5754 | UNI(OP_CHOP); | |
5755 | ||
5756 | case KEY_continue: | |
0d863452 RH |
5757 | /* When 'use switch' is in effect, continue has a dual |
5758 | life as a control operator. */ | |
5759 | { | |
ef89dcc3 | 5760 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5761 | PREBLOCK(CONTINUE); |
5762 | else { | |
5763 | /* We have to disambiguate the two senses of | |
5764 | "continue". If the next token is a '{' then | |
5765 | treat it as the start of a continue block; | |
5766 | otherwise treat it as a control operator. | |
5767 | */ | |
5768 | s = skipspace(s); | |
5769 | if (*s == '{') | |
79072805 | 5770 | PREBLOCK(CONTINUE); |
0d863452 RH |
5771 | else |
5772 | FUN0(OP_CONTINUE); | |
5773 | } | |
5774 | } | |
79072805 LW |
5775 | |
5776 | case KEY_chdir: | |
fafc274c NC |
5777 | /* may use HOME */ |
5778 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5779 | UNI(OP_CHDIR); |
5780 | ||
5781 | case KEY_close: | |
5782 | UNI(OP_CLOSE); | |
5783 | ||
5784 | case KEY_closedir: | |
5785 | UNI(OP_CLOSEDIR); | |
5786 | ||
5787 | case KEY_cmp: | |
5788 | Eop(OP_SCMP); | |
5789 | ||
5790 | case KEY_caller: | |
5791 | UNI(OP_CALLER); | |
5792 | ||
5793 | case KEY_crypt: | |
5794 | #ifdef FCRYPT | |
f4c556ac GS |
5795 | if (!PL_cryptseen) { |
5796 | PL_cryptseen = TRUE; | |
de3bb511 | 5797 | init_des(); |
f4c556ac | 5798 | } |
a687059c | 5799 | #endif |
a0d0e21e | 5800 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5801 | |
5802 | case KEY_chmod: | |
a0d0e21e | 5803 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5804 | |
5805 | case KEY_chown: | |
a0d0e21e | 5806 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5807 | |
5808 | case KEY_connect: | |
a0d0e21e | 5809 | LOP(OP_CONNECT,XTERM); |
79072805 | 5810 | |
463ee0b2 LW |
5811 | case KEY_chr: |
5812 | UNI(OP_CHR); | |
5813 | ||
79072805 LW |
5814 | case KEY_cos: |
5815 | UNI(OP_COS); | |
5816 | ||
5817 | case KEY_chroot: | |
5818 | UNI(OP_CHROOT); | |
5819 | ||
0d863452 RH |
5820 | case KEY_default: |
5821 | PREBLOCK(DEFAULT); | |
5822 | ||
79072805 | 5823 | case KEY_do: |
29595ff2 | 5824 | s = SKIPSPACE1(s); |
79072805 | 5825 | if (*s == '{') |
a0d0e21e | 5826 | PRETERMBLOCK(DO); |
79072805 | 5827 | if (*s != '\'') |
89c5585f | 5828 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5829 | if (orig_keyword == KEY_do) { |
5830 | orig_keyword = 0; | |
5831 | yylval.ival = 1; | |
5832 | } | |
5833 | else | |
5834 | yylval.ival = 0; | |
378cc40b | 5835 | OPERATOR(DO); |
79072805 LW |
5836 | |
5837 | case KEY_die: | |
3280af22 | 5838 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5839 | LOP(OP_DIE,XTERM); |
79072805 LW |
5840 | |
5841 | case KEY_defined: | |
5842 | UNI(OP_DEFINED); | |
5843 | ||
5844 | case KEY_delete: | |
a0d0e21e | 5845 | UNI(OP_DELETE); |
79072805 LW |
5846 | |
5847 | case KEY_dbmopen: | |
5c1737d1 | 5848 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5849 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5850 | |
5851 | case KEY_dbmclose: | |
5852 | UNI(OP_DBMCLOSE); | |
5853 | ||
5854 | case KEY_dump: | |
a0d0e21e | 5855 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5856 | LOOPX(OP_DUMP); |
5857 | ||
5858 | case KEY_else: | |
5859 | PREBLOCK(ELSE); | |
5860 | ||
5861 | case KEY_elsif: | |
57843af0 | 5862 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5863 | OPERATOR(ELSIF); |
5864 | ||
5865 | case KEY_eq: | |
5866 | Eop(OP_SEQ); | |
5867 | ||
a0d0e21e LW |
5868 | case KEY_exists: |
5869 | UNI(OP_EXISTS); | |
4e553d73 | 5870 | |
79072805 | 5871 | case KEY_exit: |
5db06880 NC |
5872 | if (PL_madskills) |
5873 | UNI(OP_INT); | |
79072805 LW |
5874 | UNI(OP_EXIT); |
5875 | ||
5876 | case KEY_eval: | |
29595ff2 | 5877 | s = SKIPSPACE1(s); |
3280af22 | 5878 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5879 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5880 | |
5881 | case KEY_eof: | |
5882 | UNI(OP_EOF); | |
5883 | ||
c963b151 BD |
5884 | case KEY_err: |
5885 | OPERATOR(DOROP); | |
5886 | ||
79072805 LW |
5887 | case KEY_exp: |
5888 | UNI(OP_EXP); | |
5889 | ||
5890 | case KEY_each: | |
5891 | UNI(OP_EACH); | |
5892 | ||
5893 | case KEY_exec: | |
5894 | set_csh(); | |
a0d0e21e | 5895 | LOP(OP_EXEC,XREF); |
79072805 LW |
5896 | |
5897 | case KEY_endhostent: | |
5898 | FUN0(OP_EHOSTENT); | |
5899 | ||
5900 | case KEY_endnetent: | |
5901 | FUN0(OP_ENETENT); | |
5902 | ||
5903 | case KEY_endservent: | |
5904 | FUN0(OP_ESERVENT); | |
5905 | ||
5906 | case KEY_endprotoent: | |
5907 | FUN0(OP_EPROTOENT); | |
5908 | ||
5909 | case KEY_endpwent: | |
5910 | FUN0(OP_EPWENT); | |
5911 | ||
5912 | case KEY_endgrent: | |
5913 | FUN0(OP_EGRENT); | |
5914 | ||
5915 | case KEY_for: | |
5916 | case KEY_foreach: | |
57843af0 | 5917 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5918 | s = SKIPSPACE1(s); |
7e2040f0 | 5919 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5920 | char *p = s; |
5db06880 NC |
5921 | #ifdef PERL_MAD |
5922 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5923 | #endif | |
5924 | ||
3280af22 | 5925 | if ((PL_bufend - p) >= 3 && |
55497cff | 5926 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5927 | p += 2; | |
77ca0c92 LW |
5928 | else if ((PL_bufend - p) >= 4 && |
5929 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5930 | p += 3; | |
29595ff2 | 5931 | p = PEEKSPACE(p); |
7e2040f0 | 5932 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5933 | p = scan_ident(p, PL_bufend, |
5934 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5935 | p = PEEKSPACE(p); |
77ca0c92 LW |
5936 | } |
5937 | if (*p != '$') | |
cea2e8a9 | 5938 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5939 | #ifdef PERL_MAD |
5940 | s = SvPVX(PL_linestr) + soff; | |
5941 | #endif | |
55497cff | 5942 | } |
79072805 LW |
5943 | OPERATOR(FOR); |
5944 | ||
5945 | case KEY_formline: | |
a0d0e21e | 5946 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5947 | |
5948 | case KEY_fork: | |
5949 | FUN0(OP_FORK); | |
5950 | ||
5951 | case KEY_fcntl: | |
a0d0e21e | 5952 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5953 | |
5954 | case KEY_fileno: | |
5955 | UNI(OP_FILENO); | |
5956 | ||
5957 | case KEY_flock: | |
a0d0e21e | 5958 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5959 | |
5960 | case KEY_gt: | |
5961 | Rop(OP_SGT); | |
5962 | ||
5963 | case KEY_ge: | |
5964 | Rop(OP_SGE); | |
5965 | ||
5966 | case KEY_grep: | |
2c38e13d | 5967 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5968 | |
5969 | case KEY_goto: | |
a0d0e21e | 5970 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5971 | LOOPX(OP_GOTO); |
5972 | ||
5973 | case KEY_gmtime: | |
5974 | UNI(OP_GMTIME); | |
5975 | ||
5976 | case KEY_getc: | |
6f33ba73 | 5977 | UNIDOR(OP_GETC); |
79072805 LW |
5978 | |
5979 | case KEY_getppid: | |
5980 | FUN0(OP_GETPPID); | |
5981 | ||
5982 | case KEY_getpgrp: | |
5983 | UNI(OP_GETPGRP); | |
5984 | ||
5985 | case KEY_getpriority: | |
a0d0e21e | 5986 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
5987 | |
5988 | case KEY_getprotobyname: | |
5989 | UNI(OP_GPBYNAME); | |
5990 | ||
5991 | case KEY_getprotobynumber: | |
a0d0e21e | 5992 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
5993 | |
5994 | case KEY_getprotoent: | |
5995 | FUN0(OP_GPROTOENT); | |
5996 | ||
5997 | case KEY_getpwent: | |
5998 | FUN0(OP_GPWENT); | |
5999 | ||
6000 | case KEY_getpwnam: | |
ff68c719 | 6001 | UNI(OP_GPWNAM); |
79072805 LW |
6002 | |
6003 | case KEY_getpwuid: | |
ff68c719 | 6004 | UNI(OP_GPWUID); |
79072805 LW |
6005 | |
6006 | case KEY_getpeername: | |
6007 | UNI(OP_GETPEERNAME); | |
6008 | ||
6009 | case KEY_gethostbyname: | |
6010 | UNI(OP_GHBYNAME); | |
6011 | ||
6012 | case KEY_gethostbyaddr: | |
a0d0e21e | 6013 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6014 | |
6015 | case KEY_gethostent: | |
6016 | FUN0(OP_GHOSTENT); | |
6017 | ||
6018 | case KEY_getnetbyname: | |
6019 | UNI(OP_GNBYNAME); | |
6020 | ||
6021 | case KEY_getnetbyaddr: | |
a0d0e21e | 6022 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6023 | |
6024 | case KEY_getnetent: | |
6025 | FUN0(OP_GNETENT); | |
6026 | ||
6027 | case KEY_getservbyname: | |
a0d0e21e | 6028 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6029 | |
6030 | case KEY_getservbyport: | |
a0d0e21e | 6031 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6032 | |
6033 | case KEY_getservent: | |
6034 | FUN0(OP_GSERVENT); | |
6035 | ||
6036 | case KEY_getsockname: | |
6037 | UNI(OP_GETSOCKNAME); | |
6038 | ||
6039 | case KEY_getsockopt: | |
a0d0e21e | 6040 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6041 | |
6042 | case KEY_getgrent: | |
6043 | FUN0(OP_GGRENT); | |
6044 | ||
6045 | case KEY_getgrnam: | |
ff68c719 | 6046 | UNI(OP_GGRNAM); |
79072805 LW |
6047 | |
6048 | case KEY_getgrgid: | |
ff68c719 | 6049 | UNI(OP_GGRGID); |
79072805 LW |
6050 | |
6051 | case KEY_getlogin: | |
6052 | FUN0(OP_GETLOGIN); | |
6053 | ||
0d863452 RH |
6054 | case KEY_given: |
6055 | yylval.ival = CopLINE(PL_curcop); | |
6056 | OPERATOR(GIVEN); | |
6057 | ||
93a17b20 | 6058 | case KEY_glob: |
a0d0e21e LW |
6059 | set_csh(); |
6060 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 6061 | |
79072805 LW |
6062 | case KEY_hex: |
6063 | UNI(OP_HEX); | |
6064 | ||
6065 | case KEY_if: | |
57843af0 | 6066 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6067 | OPERATOR(IF); |
6068 | ||
6069 | case KEY_index: | |
a0d0e21e | 6070 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6071 | |
6072 | case KEY_int: | |
6073 | UNI(OP_INT); | |
6074 | ||
6075 | case KEY_ioctl: | |
a0d0e21e | 6076 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6077 | |
6078 | case KEY_join: | |
a0d0e21e | 6079 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6080 | |
6081 | case KEY_keys: | |
6082 | UNI(OP_KEYS); | |
6083 | ||
6084 | case KEY_kill: | |
a0d0e21e | 6085 | LOP(OP_KILL,XTERM); |
79072805 LW |
6086 | |
6087 | case KEY_last: | |
a0d0e21e | 6088 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6089 | LOOPX(OP_LAST); |
4e553d73 | 6090 | |
79072805 LW |
6091 | case KEY_lc: |
6092 | UNI(OP_LC); | |
6093 | ||
6094 | case KEY_lcfirst: | |
6095 | UNI(OP_LCFIRST); | |
6096 | ||
6097 | case KEY_local: | |
09bef843 | 6098 | yylval.ival = 0; |
79072805 LW |
6099 | OPERATOR(LOCAL); |
6100 | ||
6101 | case KEY_length: | |
6102 | UNI(OP_LENGTH); | |
6103 | ||
6104 | case KEY_lt: | |
6105 | Rop(OP_SLT); | |
6106 | ||
6107 | case KEY_le: | |
6108 | Rop(OP_SLE); | |
6109 | ||
6110 | case KEY_localtime: | |
6111 | UNI(OP_LOCALTIME); | |
6112 | ||
6113 | case KEY_log: | |
6114 | UNI(OP_LOG); | |
6115 | ||
6116 | case KEY_link: | |
a0d0e21e | 6117 | LOP(OP_LINK,XTERM); |
79072805 LW |
6118 | |
6119 | case KEY_listen: | |
a0d0e21e | 6120 | LOP(OP_LISTEN,XTERM); |
79072805 | 6121 | |
c0329465 MB |
6122 | case KEY_lock: |
6123 | UNI(OP_LOCK); | |
6124 | ||
79072805 LW |
6125 | case KEY_lstat: |
6126 | UNI(OP_LSTAT); | |
6127 | ||
6128 | case KEY_m: | |
8782bef2 | 6129 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6130 | TERM(sublex_start()); |
6131 | ||
a0d0e21e | 6132 | case KEY_map: |
2c38e13d | 6133 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6134 | |
79072805 | 6135 | case KEY_mkdir: |
a0d0e21e | 6136 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6137 | |
6138 | case KEY_msgctl: | |
a0d0e21e | 6139 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6140 | |
6141 | case KEY_msgget: | |
a0d0e21e | 6142 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6143 | |
6144 | case KEY_msgrcv: | |
a0d0e21e | 6145 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6146 | |
6147 | case KEY_msgsnd: | |
a0d0e21e | 6148 | LOP(OP_MSGSND,XTERM); |
79072805 | 6149 | |
77ca0c92 | 6150 | case KEY_our: |
93a17b20 | 6151 | case KEY_my: |
952306ac | 6152 | case KEY_state: |
77ca0c92 | 6153 | PL_in_my = tmp; |
29595ff2 | 6154 | s = SKIPSPACE1(s); |
7e2040f0 | 6155 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6156 | #ifdef PERL_MAD |
6157 | char* start = s; | |
6158 | #endif | |
3280af22 | 6159 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6160 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6161 | goto really_sub; | |
def3634b | 6162 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6163 | if (!PL_in_my_stash) { |
c750a3ec | 6164 | char tmpbuf[1024]; |
3280af22 | 6165 | PL_bufptr = s; |
d9fad198 | 6166 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6167 | yyerror(tmpbuf); |
6168 | } | |
5db06880 NC |
6169 | #ifdef PERL_MAD |
6170 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6171 | sv_catsv(PL_thistoken, PL_nextwhite); |
6172 | PL_nextwhite = 0; | |
6173 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6174 | } |
6175 | #endif | |
c750a3ec | 6176 | } |
09bef843 | 6177 | yylval.ival = 1; |
55497cff | 6178 | OPERATOR(MY); |
93a17b20 | 6179 | |
79072805 | 6180 | case KEY_next: |
a0d0e21e | 6181 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6182 | LOOPX(OP_NEXT); |
6183 | ||
6184 | case KEY_ne: | |
6185 | Eop(OP_SNE); | |
6186 | ||
a0d0e21e | 6187 | case KEY_no: |
468aa647 | 6188 | s = tokenize_use(0, s); |
a0d0e21e LW |
6189 | OPERATOR(USE); |
6190 | ||
6191 | case KEY_not: | |
29595ff2 | 6192 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6193 | FUN1(OP_NOT); |
6194 | else | |
6195 | OPERATOR(NOTOP); | |
a0d0e21e | 6196 | |
79072805 | 6197 | case KEY_open: |
29595ff2 | 6198 | s = SKIPSPACE1(s); |
7e2040f0 | 6199 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6200 | const char *t; |
c35e046a AL |
6201 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6202 | d++; | |
6203 | for (t=d; isSPACE(*t);) | |
6204 | t++; | |
e2ab214b | 6205 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6206 | /* [perl #16184] */ |
6207 | && !(t[0] == '=' && t[1] == '>') | |
6208 | ) { | |
5f66b61c | 6209 | int parms_len = (int)(d-s); |
9014280d | 6210 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6211 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6212 | parms_len, s, parms_len, s); |
66fbe8fb | 6213 | } |
93a17b20 | 6214 | } |
a0d0e21e | 6215 | LOP(OP_OPEN,XTERM); |
79072805 | 6216 | |
463ee0b2 | 6217 | case KEY_or: |
a0d0e21e | 6218 | yylval.ival = OP_OR; |
463ee0b2 LW |
6219 | OPERATOR(OROP); |
6220 | ||
79072805 LW |
6221 | case KEY_ord: |
6222 | UNI(OP_ORD); | |
6223 | ||
6224 | case KEY_oct: | |
6225 | UNI(OP_OCT); | |
6226 | ||
6227 | case KEY_opendir: | |
a0d0e21e | 6228 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6229 | |
6230 | case KEY_print: | |
3280af22 | 6231 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6232 | LOP(OP_PRINT,XREF); |
79072805 LW |
6233 | |
6234 | case KEY_printf: | |
3280af22 | 6235 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6236 | LOP(OP_PRTF,XREF); |
79072805 | 6237 | |
c07a80fd | 6238 | case KEY_prototype: |
6239 | UNI(OP_PROTOTYPE); | |
6240 | ||
79072805 | 6241 | case KEY_push: |
a0d0e21e | 6242 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6243 | |
6244 | case KEY_pop: | |
6f33ba73 | 6245 | UNIDOR(OP_POP); |
79072805 | 6246 | |
a0d0e21e | 6247 | case KEY_pos: |
6f33ba73 | 6248 | UNIDOR(OP_POS); |
4e553d73 | 6249 | |
79072805 | 6250 | case KEY_pack: |
a0d0e21e | 6251 | LOP(OP_PACK,XTERM); |
79072805 LW |
6252 | |
6253 | case KEY_package: | |
a0d0e21e | 6254 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6255 | OPERATOR(PACKAGE); |
6256 | ||
6257 | case KEY_pipe: | |
a0d0e21e | 6258 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6259 | |
6260 | case KEY_q: | |
5db06880 | 6261 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6262 | if (!s) |
d4c19fe8 | 6263 | missingterm(NULL); |
79072805 LW |
6264 | yylval.ival = OP_CONST; |
6265 | TERM(sublex_start()); | |
6266 | ||
a0d0e21e LW |
6267 | case KEY_quotemeta: |
6268 | UNI(OP_QUOTEMETA); | |
6269 | ||
8990e307 | 6270 | case KEY_qw: |
5db06880 | 6271 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6272 | if (!s) |
d4c19fe8 | 6273 | missingterm(NULL); |
3480a8d2 | 6274 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6275 | force_next(')'); |
6276 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6277 | OP *words = NULL; |
8127e0e3 | 6278 | int warned = 0; |
3280af22 | 6279 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6280 | while (len) { |
d4c19fe8 AL |
6281 | for (; isSPACE(*d) && len; --len, ++d) |
6282 | /**/; | |
8127e0e3 | 6283 | if (len) { |
d4c19fe8 | 6284 | SV *sv; |
f54cb97a | 6285 | const char *b = d; |
e476b1b5 | 6286 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6287 | for (; !isSPACE(*d) && len; --len, ++d) { |
6288 | if (*d == ',') { | |
9014280d | 6289 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6290 | "Possible attempt to separate words with commas"); |
6291 | ++warned; | |
6292 | } | |
6293 | else if (*d == '#') { | |
9014280d | 6294 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6295 | "Possible attempt to put comments in qw() list"); |
6296 | ++warned; | |
6297 | } | |
6298 | } | |
6299 | } | |
6300 | else { | |
d4c19fe8 AL |
6301 | for (; !isSPACE(*d) && len; --len, ++d) |
6302 | /**/; | |
8127e0e3 | 6303 | } |
7948272d NIS |
6304 | sv = newSVpvn(b, d-b); |
6305 | if (DO_UTF8(PL_lex_stuff)) | |
6306 | SvUTF8_on(sv); | |
8127e0e3 | 6307 | words = append_elem(OP_LIST, words, |
7948272d | 6308 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6309 | } |
6310 | } | |
8127e0e3 | 6311 | if (words) { |
cd81e915 | 6312 | start_force(PL_curforce); |
9ded7720 | 6313 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6314 | force_next(THING); |
6315 | } | |
55497cff | 6316 | } |
37fd879b | 6317 | if (PL_lex_stuff) { |
8127e0e3 | 6318 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6319 | PL_lex_stuff = NULL; |
37fd879b | 6320 | } |
3280af22 | 6321 | PL_expect = XTERM; |
8127e0e3 | 6322 | TOKEN('('); |
8990e307 | 6323 | |
79072805 | 6324 | case KEY_qq: |
5db06880 | 6325 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6326 | if (!s) |
d4c19fe8 | 6327 | missingterm(NULL); |
a0d0e21e | 6328 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6329 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6330 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6331 | TERM(sublex_start()); |
6332 | ||
8782bef2 GB |
6333 | case KEY_qr: |
6334 | s = scan_pat(s,OP_QR); | |
6335 | TERM(sublex_start()); | |
6336 | ||
79072805 | 6337 | case KEY_qx: |
5db06880 | 6338 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6339 | if (!s) |
d4c19fe8 | 6340 | missingterm(NULL); |
9b201d7d | 6341 | readpipe_override(); |
79072805 LW |
6342 | TERM(sublex_start()); |
6343 | ||
6344 | case KEY_return: | |
6345 | OLDLOP(OP_RETURN); | |
6346 | ||
6347 | case KEY_require: | |
29595ff2 | 6348 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6349 | if (isDIGIT(*s)) { |
6350 | s = force_version(s, FALSE); | |
a7cb1f99 | 6351 | } |
e759cc13 RGS |
6352 | else if (*s != 'v' || !isDIGIT(s[1]) |
6353 | || (s = force_version(s, TRUE), *s == 'v')) | |
6354 | { | |
a7cb1f99 GS |
6355 | *PL_tokenbuf = '\0'; |
6356 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6357 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
6358 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
6359 | else if (*s == '<') | |
6360 | yyerror("<> should be quotes"); | |
6361 | } | |
a72a1c8b RGS |
6362 | if (orig_keyword == KEY_require) { |
6363 | orig_keyword = 0; | |
6364 | yylval.ival = 1; | |
6365 | } | |
6366 | else | |
6367 | yylval.ival = 0; | |
6368 | PL_expect = XTERM; | |
6369 | PL_bufptr = s; | |
6370 | PL_last_uni = PL_oldbufptr; | |
6371 | PL_last_lop_op = OP_REQUIRE; | |
6372 | s = skipspace(s); | |
6373 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6374 | |
6375 | case KEY_reset: | |
6376 | UNI(OP_RESET); | |
6377 | ||
6378 | case KEY_redo: | |
a0d0e21e | 6379 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6380 | LOOPX(OP_REDO); |
6381 | ||
6382 | case KEY_rename: | |
a0d0e21e | 6383 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6384 | |
6385 | case KEY_rand: | |
6386 | UNI(OP_RAND); | |
6387 | ||
6388 | case KEY_rmdir: | |
6389 | UNI(OP_RMDIR); | |
6390 | ||
6391 | case KEY_rindex: | |
a0d0e21e | 6392 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6393 | |
6394 | case KEY_read: | |
a0d0e21e | 6395 | LOP(OP_READ,XTERM); |
79072805 LW |
6396 | |
6397 | case KEY_readdir: | |
6398 | UNI(OP_READDIR); | |
6399 | ||
93a17b20 LW |
6400 | case KEY_readline: |
6401 | set_csh(); | |
6f33ba73 | 6402 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6403 | |
6404 | case KEY_readpipe: | |
6405 | set_csh(); | |
6406 | UNI(OP_BACKTICK); | |
6407 | ||
79072805 LW |
6408 | case KEY_rewinddir: |
6409 | UNI(OP_REWINDDIR); | |
6410 | ||
6411 | case KEY_recv: | |
a0d0e21e | 6412 | LOP(OP_RECV,XTERM); |
79072805 LW |
6413 | |
6414 | case KEY_reverse: | |
a0d0e21e | 6415 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6416 | |
6417 | case KEY_readlink: | |
6f33ba73 | 6418 | UNIDOR(OP_READLINK); |
79072805 LW |
6419 | |
6420 | case KEY_ref: | |
6421 | UNI(OP_REF); | |
6422 | ||
6423 | case KEY_s: | |
6424 | s = scan_subst(s); | |
6425 | if (yylval.opval) | |
6426 | TERM(sublex_start()); | |
6427 | else | |
6428 | TOKEN(1); /* force error */ | |
6429 | ||
0d863452 RH |
6430 | case KEY_say: |
6431 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6432 | LOP(OP_SAY,XREF); | |
6433 | ||
a0d0e21e LW |
6434 | case KEY_chomp: |
6435 | UNI(OP_CHOMP); | |
4e553d73 | 6436 | |
79072805 LW |
6437 | case KEY_scalar: |
6438 | UNI(OP_SCALAR); | |
6439 | ||
6440 | case KEY_select: | |
a0d0e21e | 6441 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6442 | |
6443 | case KEY_seek: | |
a0d0e21e | 6444 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6445 | |
6446 | case KEY_semctl: | |
a0d0e21e | 6447 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6448 | |
6449 | case KEY_semget: | |
a0d0e21e | 6450 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6451 | |
6452 | case KEY_semop: | |
a0d0e21e | 6453 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6454 | |
6455 | case KEY_send: | |
a0d0e21e | 6456 | LOP(OP_SEND,XTERM); |
79072805 LW |
6457 | |
6458 | case KEY_setpgrp: | |
a0d0e21e | 6459 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6460 | |
6461 | case KEY_setpriority: | |
a0d0e21e | 6462 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6463 | |
6464 | case KEY_sethostent: | |
ff68c719 | 6465 | UNI(OP_SHOSTENT); |
79072805 LW |
6466 | |
6467 | case KEY_setnetent: | |
ff68c719 | 6468 | UNI(OP_SNETENT); |
79072805 LW |
6469 | |
6470 | case KEY_setservent: | |
ff68c719 | 6471 | UNI(OP_SSERVENT); |
79072805 LW |
6472 | |
6473 | case KEY_setprotoent: | |
ff68c719 | 6474 | UNI(OP_SPROTOENT); |
79072805 LW |
6475 | |
6476 | case KEY_setpwent: | |
6477 | FUN0(OP_SPWENT); | |
6478 | ||
6479 | case KEY_setgrent: | |
6480 | FUN0(OP_SGRENT); | |
6481 | ||
6482 | case KEY_seekdir: | |
a0d0e21e | 6483 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6484 | |
6485 | case KEY_setsockopt: | |
a0d0e21e | 6486 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6487 | |
6488 | case KEY_shift: | |
6f33ba73 | 6489 | UNIDOR(OP_SHIFT); |
79072805 LW |
6490 | |
6491 | case KEY_shmctl: | |
a0d0e21e | 6492 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6493 | |
6494 | case KEY_shmget: | |
a0d0e21e | 6495 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6496 | |
6497 | case KEY_shmread: | |
a0d0e21e | 6498 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6499 | |
6500 | case KEY_shmwrite: | |
a0d0e21e | 6501 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6502 | |
6503 | case KEY_shutdown: | |
a0d0e21e | 6504 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6505 | |
6506 | case KEY_sin: | |
6507 | UNI(OP_SIN); | |
6508 | ||
6509 | case KEY_sleep: | |
6510 | UNI(OP_SLEEP); | |
6511 | ||
6512 | case KEY_socket: | |
a0d0e21e | 6513 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6514 | |
6515 | case KEY_socketpair: | |
a0d0e21e | 6516 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6517 | |
6518 | case KEY_sort: | |
3280af22 | 6519 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6520 | s = SKIPSPACE1(s); |
79072805 | 6521 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6522 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6523 | PL_expect = XTERM; |
15f0808c | 6524 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6525 | LOP(OP_SORT,XREF); |
79072805 LW |
6526 | |
6527 | case KEY_split: | |
a0d0e21e | 6528 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6529 | |
6530 | case KEY_sprintf: | |
a0d0e21e | 6531 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6532 | |
6533 | case KEY_splice: | |
a0d0e21e | 6534 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6535 | |
6536 | case KEY_sqrt: | |
6537 | UNI(OP_SQRT); | |
6538 | ||
6539 | case KEY_srand: | |
6540 | UNI(OP_SRAND); | |
6541 | ||
6542 | case KEY_stat: | |
6543 | UNI(OP_STAT); | |
6544 | ||
6545 | case KEY_study: | |
79072805 LW |
6546 | UNI(OP_STUDY); |
6547 | ||
6548 | case KEY_substr: | |
a0d0e21e | 6549 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6550 | |
6551 | case KEY_format: | |
6552 | case KEY_sub: | |
93a17b20 | 6553 | really_sub: |
09bef843 | 6554 | { |
3280af22 | 6555 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6556 | SSize_t tboffset = 0; |
09bef843 | 6557 | expectation attrful; |
28cc6278 | 6558 | bool have_name, have_proto; |
f54cb97a | 6559 | const int key = tmp; |
09bef843 | 6560 | |
5db06880 NC |
6561 | #ifdef PERL_MAD |
6562 | SV *tmpwhite = 0; | |
6563 | ||
cd81e915 | 6564 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6565 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6566 | PL_thistoken = 0; |
5db06880 NC |
6567 | |
6568 | d = s; | |
6569 | s = SKIPSPACE2(s,tmpwhite); | |
6570 | #else | |
09bef843 | 6571 | s = skipspace(s); |
5db06880 | 6572 | #endif |
09bef843 | 6573 | |
7e2040f0 | 6574 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6575 | (*s == ':' && s[1] == ':')) |
6576 | { | |
5db06880 NC |
6577 | #ifdef PERL_MAD |
6578 | SV *nametoke; | |
6579 | #endif | |
6580 | ||
09bef843 SB |
6581 | PL_expect = XBLOCK; |
6582 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6583 | /* remember buffer pos'n for later force_word */ |
6584 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6585 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6586 | #ifdef PERL_MAD |
6587 | if (PL_madskills) | |
6588 | nametoke = newSVpvn(s, d - s); | |
6589 | #endif | |
09bef843 SB |
6590 | if (strchr(tmpbuf, ':')) |
6591 | sv_setpv(PL_subname, tmpbuf); | |
6592 | else { | |
6593 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6594 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6595 | sv_catpvn(PL_subname,tmpbuf,len); |
6596 | } | |
09bef843 | 6597 | have_name = TRUE; |
5db06880 NC |
6598 | |
6599 | #ifdef PERL_MAD | |
6600 | ||
6601 | start_force(0); | |
6602 | CURMAD('X', nametoke); | |
6603 | CURMAD('_', tmpwhite); | |
6604 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6605 | FALSE, TRUE, TRUE); | |
6606 | ||
6607 | s = SKIPSPACE2(d,tmpwhite); | |
6608 | #else | |
6609 | s = skipspace(d); | |
6610 | #endif | |
09bef843 | 6611 | } |
463ee0b2 | 6612 | else { |
09bef843 SB |
6613 | if (key == KEY_my) |
6614 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6615 | PL_expect = XTERMBLOCK; | |
6616 | attrful = XATTRTERM; | |
c69006e4 | 6617 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6618 | have_name = FALSE; |
463ee0b2 | 6619 | } |
4633a7c4 | 6620 | |
09bef843 SB |
6621 | if (key == KEY_format) { |
6622 | if (*s == '=') | |
6623 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6624 | #ifdef PERL_MAD |
cd81e915 | 6625 | PL_thistoken = subtoken; |
5db06880 NC |
6626 | s = d; |
6627 | #else | |
09bef843 | 6628 | if (have_name) |
b1b65b59 JH |
6629 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6630 | FALSE, TRUE, TRUE); | |
5db06880 | 6631 | #endif |
09bef843 SB |
6632 | OPERATOR(FORMAT); |
6633 | } | |
79072805 | 6634 | |
09bef843 SB |
6635 | /* Look for a prototype */ |
6636 | if (*s == '(') { | |
d9f2850e RGS |
6637 | char *p; |
6638 | bool bad_proto = FALSE; | |
6639 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 | 6640 | |
5db06880 | 6641 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6642 | if (!s) |
09bef843 | 6643 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6644 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6645 | d = SvPVX(PL_lex_stuff); |
6646 | tmp = 0; | |
d9f2850e RGS |
6647 | for (p = d; *p; ++p) { |
6648 | if (!isSPACE(*p)) { | |
6649 | d[tmp++] = *p; | |
b13fd70a | 6650 | if (warnsyntax && !strchr("$@%*;[]&\\_", *p)) |
d9f2850e | 6651 | bad_proto = TRUE; |
d37a9538 | 6652 | } |
09bef843 | 6653 | } |
d9f2850e RGS |
6654 | d[tmp] = '\0'; |
6655 | if (bad_proto) | |
6656 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6657 | "Illegal character in prototype for %"SVf" : %s", | |
be2597df | 6658 | SVfARG(PL_subname), d); |
b162af07 | 6659 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6660 | have_proto = TRUE; |
68dc0745 | 6661 | |
5db06880 NC |
6662 | #ifdef PERL_MAD |
6663 | start_force(0); | |
cd81e915 | 6664 | CURMAD('q', PL_thisopen); |
5db06880 | 6665 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6666 | CURMAD('=', PL_thisstuff); |
6667 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6668 | NEXTVAL_NEXTTOKE.opval = |
6669 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6670 | PL_lex_stuff = Nullsv; | |
6671 | force_next(THING); | |
6672 | ||
6673 | s = SKIPSPACE2(s,tmpwhite); | |
6674 | #else | |
09bef843 | 6675 | s = skipspace(s); |
5db06880 | 6676 | #endif |
4633a7c4 | 6677 | } |
09bef843 SB |
6678 | else |
6679 | have_proto = FALSE; | |
6680 | ||
6681 | if (*s == ':' && s[1] != ':') | |
6682 | PL_expect = attrful; | |
8e742a20 MHM |
6683 | else if (*s != '{' && key == KEY_sub) { |
6684 | if (!have_name) | |
6685 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6686 | else if (*s != ';') | |
be2597df | 6687 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 6688 | } |
09bef843 | 6689 | |
5db06880 NC |
6690 | #ifdef PERL_MAD |
6691 | start_force(0); | |
6692 | if (tmpwhite) { | |
6693 | if (PL_madskills) | |
6b29d1f5 | 6694 | curmad('^', newSVpvs("")); |
5db06880 NC |
6695 | CURMAD('_', tmpwhite); |
6696 | } | |
6697 | force_next(0); | |
6698 | ||
cd81e915 | 6699 | PL_thistoken = subtoken; |
5db06880 | 6700 | #else |
09bef843 | 6701 | if (have_proto) { |
9ded7720 | 6702 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6703 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6704 | PL_lex_stuff = NULL; |
09bef843 | 6705 | force_next(THING); |
68dc0745 | 6706 | } |
5db06880 | 6707 | #endif |
09bef843 | 6708 | if (!have_name) { |
c99da370 | 6709 | sv_setpv(PL_subname, |
10edeb5d JH |
6710 | (const char *) |
6711 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 6712 | TOKEN(ANONSUB); |
4633a7c4 | 6713 | } |
5db06880 | 6714 | #ifndef PERL_MAD |
b1b65b59 JH |
6715 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6716 | FALSE, TRUE, TRUE); | |
5db06880 | 6717 | #endif |
09bef843 SB |
6718 | if (key == KEY_my) |
6719 | TOKEN(MYSUB); | |
6720 | TOKEN(SUB); | |
4633a7c4 | 6721 | } |
79072805 LW |
6722 | |
6723 | case KEY_system: | |
6724 | set_csh(); | |
a0d0e21e | 6725 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6726 | |
6727 | case KEY_symlink: | |
a0d0e21e | 6728 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6729 | |
6730 | case KEY_syscall: | |
a0d0e21e | 6731 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6732 | |
c07a80fd | 6733 | case KEY_sysopen: |
6734 | LOP(OP_SYSOPEN,XTERM); | |
6735 | ||
137443ea | 6736 | case KEY_sysseek: |
6737 | LOP(OP_SYSSEEK,XTERM); | |
6738 | ||
79072805 | 6739 | case KEY_sysread: |
a0d0e21e | 6740 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6741 | |
6742 | case KEY_syswrite: | |
a0d0e21e | 6743 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6744 | |
6745 | case KEY_tr: | |
6746 | s = scan_trans(s); | |
6747 | TERM(sublex_start()); | |
6748 | ||
6749 | case KEY_tell: | |
6750 | UNI(OP_TELL); | |
6751 | ||
6752 | case KEY_telldir: | |
6753 | UNI(OP_TELLDIR); | |
6754 | ||
463ee0b2 | 6755 | case KEY_tie: |
a0d0e21e | 6756 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6757 | |
c07a80fd | 6758 | case KEY_tied: |
6759 | UNI(OP_TIED); | |
6760 | ||
79072805 LW |
6761 | case KEY_time: |
6762 | FUN0(OP_TIME); | |
6763 | ||
6764 | case KEY_times: | |
6765 | FUN0(OP_TMS); | |
6766 | ||
6767 | case KEY_truncate: | |
a0d0e21e | 6768 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6769 | |
6770 | case KEY_uc: | |
6771 | UNI(OP_UC); | |
6772 | ||
6773 | case KEY_ucfirst: | |
6774 | UNI(OP_UCFIRST); | |
6775 | ||
463ee0b2 LW |
6776 | case KEY_untie: |
6777 | UNI(OP_UNTIE); | |
6778 | ||
79072805 | 6779 | case KEY_until: |
57843af0 | 6780 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6781 | OPERATOR(UNTIL); |
6782 | ||
6783 | case KEY_unless: | |
57843af0 | 6784 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6785 | OPERATOR(UNLESS); |
6786 | ||
6787 | case KEY_unlink: | |
a0d0e21e | 6788 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6789 | |
6790 | case KEY_undef: | |
6f33ba73 | 6791 | UNIDOR(OP_UNDEF); |
79072805 LW |
6792 | |
6793 | case KEY_unpack: | |
a0d0e21e | 6794 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6795 | |
6796 | case KEY_utime: | |
a0d0e21e | 6797 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6798 | |
6799 | case KEY_umask: | |
6f33ba73 | 6800 | UNIDOR(OP_UMASK); |
79072805 LW |
6801 | |
6802 | case KEY_unshift: | |
a0d0e21e LW |
6803 | LOP(OP_UNSHIFT,XTERM); |
6804 | ||
6805 | case KEY_use: | |
468aa647 | 6806 | s = tokenize_use(1, s); |
a0d0e21e | 6807 | OPERATOR(USE); |
79072805 LW |
6808 | |
6809 | case KEY_values: | |
6810 | UNI(OP_VALUES); | |
6811 | ||
6812 | case KEY_vec: | |
a0d0e21e | 6813 | LOP(OP_VEC,XTERM); |
79072805 | 6814 | |
0d863452 RH |
6815 | case KEY_when: |
6816 | yylval.ival = CopLINE(PL_curcop); | |
6817 | OPERATOR(WHEN); | |
6818 | ||
79072805 | 6819 | case KEY_while: |
57843af0 | 6820 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6821 | OPERATOR(WHILE); |
6822 | ||
6823 | case KEY_warn: | |
3280af22 | 6824 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6825 | LOP(OP_WARN,XTERM); |
79072805 LW |
6826 | |
6827 | case KEY_wait: | |
6828 | FUN0(OP_WAIT); | |
6829 | ||
6830 | case KEY_waitpid: | |
a0d0e21e | 6831 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6832 | |
6833 | case KEY_wantarray: | |
6834 | FUN0(OP_WANTARRAY); | |
6835 | ||
6836 | case KEY_write: | |
9d116dd7 JH |
6837 | #ifdef EBCDIC |
6838 | { | |
df3728a2 JH |
6839 | char ctl_l[2]; |
6840 | ctl_l[0] = toCTRL('L'); | |
6841 | ctl_l[1] = '\0'; | |
fafc274c | 6842 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6843 | } |
6844 | #else | |
fafc274c NC |
6845 | /* Make sure $^L is defined */ |
6846 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6847 | #endif |
79072805 LW |
6848 | UNI(OP_ENTERWRITE); |
6849 | ||
6850 | case KEY_x: | |
3280af22 | 6851 | if (PL_expect == XOPERATOR) |
79072805 LW |
6852 | Mop(OP_REPEAT); |
6853 | check_uni(); | |
6854 | goto just_a_word; | |
6855 | ||
a0d0e21e LW |
6856 | case KEY_xor: |
6857 | yylval.ival = OP_XOR; | |
6858 | OPERATOR(OROP); | |
6859 | ||
79072805 LW |
6860 | case KEY_y: |
6861 | s = scan_trans(s); | |
6862 | TERM(sublex_start()); | |
6863 | } | |
49dc05e3 | 6864 | }} |
79072805 | 6865 | } |
bf4acbe4 GS |
6866 | #ifdef __SC__ |
6867 | #pragma segment Main | |
6868 | #endif | |
79072805 | 6869 | |
e930465f JH |
6870 | static int |
6871 | S_pending_ident(pTHX) | |
8eceec63 | 6872 | { |
97aff369 | 6873 | dVAR; |
8eceec63 | 6874 | register char *d; |
bbd11bfc | 6875 | PADOFFSET tmp = 0; |
8eceec63 SC |
6876 | /* pit holds the identifier we read and pending_ident is reset */ |
6877 | char pit = PL_pending_ident; | |
6878 | PL_pending_ident = 0; | |
6879 | ||
cd81e915 | 6880 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6881 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6882 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6883 | |
6884 | /* if we're in a my(), we can't allow dynamics here. | |
6885 | $foo'bar has already been turned into $foo::bar, so | |
6886 | just check for colons. | |
6887 | ||
6888 | if it's a legal name, the OP is a PADANY. | |
6889 | */ | |
6890 | if (PL_in_my) { | |
6891 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6892 | if (strchr(PL_tokenbuf,':')) | |
6893 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6894 | "variable %s in \"our\"", | |
6895 | PL_tokenbuf)); | |
dd2155a4 | 6896 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6897 | } |
6898 | else { | |
6899 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6900 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6901 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6902 | |
6903 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6904 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6905 | return PRIVATEREF; |
6906 | } | |
6907 | } | |
6908 | ||
6909 | /* | |
6910 | build the ops for accesses to a my() variable. | |
6911 | ||
6912 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6913 | then used in a comparison. This catches most, but not | |
6914 | all cases. For instance, it catches | |
6915 | sort { my($a); $a <=> $b } | |
6916 | but not | |
6917 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6918 | (although why you'd do that is anyone's guess). | |
6919 | */ | |
6920 | ||
6921 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6922 | if (!PL_in_my) |
6923 | tmp = pad_findmy(PL_tokenbuf); | |
6924 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6925 | /* might be an "our" variable" */ |
00b1698f | 6926 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6927 | /* build ops for a bareword */ |
b64e5050 AL |
6928 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6929 | HEK * const stashname = HvNAME_HEK(stash); | |
6930 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6931 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6932 | sv_catpv(sym, PL_tokenbuf+1); |
6933 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6934 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6935 | gv_fetchsv(sym, |
8eceec63 SC |
6936 | (PL_in_eval |
6937 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6938 | : GV_ADDMULTI |
8eceec63 SC |
6939 | ), |
6940 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6941 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6942 | : SVt_PVHV)); | |
6943 | return WORD; | |
6944 | } | |
6945 | ||
6946 | /* if it's a sort block and they're naming $a or $b */ | |
6947 | if (PL_last_lop_op == OP_SORT && | |
6948 | PL_tokenbuf[0] == '$' && | |
6949 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6950 | && !PL_tokenbuf[2]) | |
6951 | { | |
6952 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6953 | d < PL_bufend && *d != '\n'; | |
6954 | d++) | |
6955 | { | |
6956 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6957 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6958 | PL_tokenbuf); | |
6959 | } | |
6960 | } | |
6961 | } | |
6962 | ||
6963 | yylval.opval = newOP(OP_PADANY, 0); | |
6964 | yylval.opval->op_targ = tmp; | |
6965 | return PRIVATEREF; | |
6966 | } | |
6967 | } | |
6968 | ||
6969 | /* | |
6970 | Whine if they've said @foo in a doublequoted string, | |
6971 | and @foo isn't a variable we can find in the symbol | |
6972 | table. | |
6973 | */ | |
6974 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 6975 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
6976 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
6977 | && ckWARN(WARN_AMBIGUOUS)) | |
6978 | { | |
6979 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 6980 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
6981 | "Possible unintended interpolation of %s in string", |
6982 | PL_tokenbuf); | |
6983 | } | |
6984 | } | |
6985 | ||
6986 | /* build ops for a bareword */ | |
6987 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
6988 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
6989 | gv_fetchpv( |
6990 | PL_tokenbuf+1, | |
d6069db2 RGS |
6991 | /* If the identifier refers to a stash, don't autovivify it. |
6992 | * Change 24660 had the side effect of causing symbol table | |
6993 | * hashes to always be defined, even if they were freshly | |
6994 | * created and the only reference in the entire program was | |
6995 | * the single statement with the defined %foo::bar:: test. | |
6996 | * It appears that all code in the wild doing this actually | |
6997 | * wants to know whether sub-packages have been loaded, so | |
6998 | * by avoiding auto-vivifying symbol tables, we ensure that | |
6999 | * defined %foo::bar:: continues to be false, and the existing | |
7000 | * tests still give the expected answers, even though what | |
7001 | * they're actually testing has now changed subtly. | |
7002 | */ | |
7003 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
7004 | ? 0 | |
7005 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7006 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7007 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7008 | : SVt_PVHV)); | |
8eceec63 SC |
7009 | return WORD; |
7010 | } | |
7011 | ||
4c3bbe0f MHM |
7012 | /* |
7013 | * The following code was generated by perl_keyword.pl. | |
7014 | */ | |
e2e1dd5a | 7015 | |
79072805 | 7016 | I32 |
5458a98a | 7017 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7018 | { |
952306ac | 7019 | dVAR; |
4c3bbe0f MHM |
7020 | switch (len) |
7021 | { | |
7022 | case 1: /* 5 tokens of length 1 */ | |
7023 | switch (name[0]) | |
e2e1dd5a | 7024 | { |
4c3bbe0f MHM |
7025 | case 'm': |
7026 | { /* m */ | |
7027 | return KEY_m; | |
7028 | } | |
7029 | ||
4c3bbe0f MHM |
7030 | case 'q': |
7031 | { /* q */ | |
7032 | return KEY_q; | |
7033 | } | |
7034 | ||
4c3bbe0f MHM |
7035 | case 's': |
7036 | { /* s */ | |
7037 | return KEY_s; | |
7038 | } | |
7039 | ||
4c3bbe0f MHM |
7040 | case 'x': |
7041 | { /* x */ | |
7042 | return -KEY_x; | |
7043 | } | |
7044 | ||
4c3bbe0f MHM |
7045 | case 'y': |
7046 | { /* y */ | |
7047 | return KEY_y; | |
7048 | } | |
7049 | ||
4c3bbe0f MHM |
7050 | default: |
7051 | goto unknown; | |
e2e1dd5a | 7052 | } |
4c3bbe0f MHM |
7053 | |
7054 | case 2: /* 18 tokens of length 2 */ | |
7055 | switch (name[0]) | |
e2e1dd5a | 7056 | { |
4c3bbe0f MHM |
7057 | case 'd': |
7058 | if (name[1] == 'o') | |
7059 | { /* do */ | |
7060 | return KEY_do; | |
7061 | } | |
7062 | ||
7063 | goto unknown; | |
7064 | ||
7065 | case 'e': | |
7066 | if (name[1] == 'q') | |
7067 | { /* eq */ | |
7068 | return -KEY_eq; | |
7069 | } | |
7070 | ||
7071 | goto unknown; | |
7072 | ||
7073 | case 'g': | |
7074 | switch (name[1]) | |
7075 | { | |
7076 | case 'e': | |
7077 | { /* ge */ | |
7078 | return -KEY_ge; | |
7079 | } | |
7080 | ||
4c3bbe0f MHM |
7081 | case 't': |
7082 | { /* gt */ | |
7083 | return -KEY_gt; | |
7084 | } | |
7085 | ||
4c3bbe0f MHM |
7086 | default: |
7087 | goto unknown; | |
7088 | } | |
7089 | ||
7090 | case 'i': | |
7091 | if (name[1] == 'f') | |
7092 | { /* if */ | |
7093 | return KEY_if; | |
7094 | } | |
7095 | ||
7096 | goto unknown; | |
7097 | ||
7098 | case 'l': | |
7099 | switch (name[1]) | |
7100 | { | |
7101 | case 'c': | |
7102 | { /* lc */ | |
7103 | return -KEY_lc; | |
7104 | } | |
7105 | ||
4c3bbe0f MHM |
7106 | case 'e': |
7107 | { /* le */ | |
7108 | return -KEY_le; | |
7109 | } | |
7110 | ||
4c3bbe0f MHM |
7111 | case 't': |
7112 | { /* lt */ | |
7113 | return -KEY_lt; | |
7114 | } | |
7115 | ||
4c3bbe0f MHM |
7116 | default: |
7117 | goto unknown; | |
7118 | } | |
7119 | ||
7120 | case 'm': | |
7121 | if (name[1] == 'y') | |
7122 | { /* my */ | |
7123 | return KEY_my; | |
7124 | } | |
7125 | ||
7126 | goto unknown; | |
7127 | ||
7128 | case 'n': | |
7129 | switch (name[1]) | |
7130 | { | |
7131 | case 'e': | |
7132 | { /* ne */ | |
7133 | return -KEY_ne; | |
7134 | } | |
7135 | ||
4c3bbe0f MHM |
7136 | case 'o': |
7137 | { /* no */ | |
7138 | return KEY_no; | |
7139 | } | |
7140 | ||
4c3bbe0f MHM |
7141 | default: |
7142 | goto unknown; | |
7143 | } | |
7144 | ||
7145 | case 'o': | |
7146 | if (name[1] == 'r') | |
7147 | { /* or */ | |
7148 | return -KEY_or; | |
7149 | } | |
7150 | ||
7151 | goto unknown; | |
7152 | ||
7153 | case 'q': | |
7154 | switch (name[1]) | |
7155 | { | |
7156 | case 'q': | |
7157 | { /* qq */ | |
7158 | return KEY_qq; | |
7159 | } | |
7160 | ||
4c3bbe0f MHM |
7161 | case 'r': |
7162 | { /* qr */ | |
7163 | return KEY_qr; | |
7164 | } | |
7165 | ||
4c3bbe0f MHM |
7166 | case 'w': |
7167 | { /* qw */ | |
7168 | return KEY_qw; | |
7169 | } | |
7170 | ||
4c3bbe0f MHM |
7171 | case 'x': |
7172 | { /* qx */ | |
7173 | return KEY_qx; | |
7174 | } | |
7175 | ||
4c3bbe0f MHM |
7176 | default: |
7177 | goto unknown; | |
7178 | } | |
7179 | ||
7180 | case 't': | |
7181 | if (name[1] == 'r') | |
7182 | { /* tr */ | |
7183 | return KEY_tr; | |
7184 | } | |
7185 | ||
7186 | goto unknown; | |
7187 | ||
7188 | case 'u': | |
7189 | if (name[1] == 'c') | |
7190 | { /* uc */ | |
7191 | return -KEY_uc; | |
7192 | } | |
7193 | ||
7194 | goto unknown; | |
7195 | ||
7196 | default: | |
7197 | goto unknown; | |
e2e1dd5a | 7198 | } |
4c3bbe0f | 7199 | |
0d863452 | 7200 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7201 | switch (name[0]) |
e2e1dd5a | 7202 | { |
4c3bbe0f MHM |
7203 | case 'E': |
7204 | if (name[1] == 'N' && | |
7205 | name[2] == 'D') | |
7206 | { /* END */ | |
7207 | return KEY_END; | |
7208 | } | |
7209 | ||
7210 | goto unknown; | |
7211 | ||
7212 | case 'a': | |
7213 | switch (name[1]) | |
7214 | { | |
7215 | case 'b': | |
7216 | if (name[2] == 's') | |
7217 | { /* abs */ | |
7218 | return -KEY_abs; | |
7219 | } | |
7220 | ||
7221 | goto unknown; | |
7222 | ||
7223 | case 'n': | |
7224 | if (name[2] == 'd') | |
7225 | { /* and */ | |
7226 | return -KEY_and; | |
7227 | } | |
7228 | ||
7229 | goto unknown; | |
7230 | ||
7231 | default: | |
7232 | goto unknown; | |
7233 | } | |
7234 | ||
7235 | case 'c': | |
7236 | switch (name[1]) | |
7237 | { | |
7238 | case 'h': | |
7239 | if (name[2] == 'r') | |
7240 | { /* chr */ | |
7241 | return -KEY_chr; | |
7242 | } | |
7243 | ||
7244 | goto unknown; | |
7245 | ||
7246 | case 'm': | |
7247 | if (name[2] == 'p') | |
7248 | { /* cmp */ | |
7249 | return -KEY_cmp; | |
7250 | } | |
7251 | ||
7252 | goto unknown; | |
7253 | ||
7254 | case 'o': | |
7255 | if (name[2] == 's') | |
7256 | { /* cos */ | |
7257 | return -KEY_cos; | |
7258 | } | |
7259 | ||
7260 | goto unknown; | |
7261 | ||
7262 | default: | |
7263 | goto unknown; | |
7264 | } | |
7265 | ||
7266 | case 'd': | |
7267 | if (name[1] == 'i' && | |
7268 | name[2] == 'e') | |
7269 | { /* die */ | |
7270 | return -KEY_die; | |
7271 | } | |
7272 | ||
7273 | goto unknown; | |
7274 | ||
7275 | case 'e': | |
7276 | switch (name[1]) | |
7277 | { | |
7278 | case 'o': | |
7279 | if (name[2] == 'f') | |
7280 | { /* eof */ | |
7281 | return -KEY_eof; | |
7282 | } | |
7283 | ||
7284 | goto unknown; | |
7285 | ||
7286 | case 'r': | |
7287 | if (name[2] == 'r') | |
7288 | { /* err */ | |
5458a98a | 7289 | return (all_keywords || FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7290 | } |
7291 | ||
7292 | goto unknown; | |
7293 | ||
7294 | case 'x': | |
7295 | if (name[2] == 'p') | |
7296 | { /* exp */ | |
7297 | return -KEY_exp; | |
7298 | } | |
7299 | ||
7300 | goto unknown; | |
7301 | ||
7302 | default: | |
7303 | goto unknown; | |
7304 | } | |
7305 | ||
7306 | case 'f': | |
7307 | if (name[1] == 'o' && | |
7308 | name[2] == 'r') | |
7309 | { /* for */ | |
7310 | return KEY_for; | |
7311 | } | |
7312 | ||
7313 | goto unknown; | |
7314 | ||
7315 | case 'h': | |
7316 | if (name[1] == 'e' && | |
7317 | name[2] == 'x') | |
7318 | { /* hex */ | |
7319 | return -KEY_hex; | |
7320 | } | |
7321 | ||
7322 | goto unknown; | |
7323 | ||
7324 | case 'i': | |
7325 | if (name[1] == 'n' && | |
7326 | name[2] == 't') | |
7327 | { /* int */ | |
7328 | return -KEY_int; | |
7329 | } | |
7330 | ||
7331 | goto unknown; | |
7332 | ||
7333 | case 'l': | |
7334 | if (name[1] == 'o' && | |
7335 | name[2] == 'g') | |
7336 | { /* log */ | |
7337 | return -KEY_log; | |
7338 | } | |
7339 | ||
7340 | goto unknown; | |
7341 | ||
7342 | case 'm': | |
7343 | if (name[1] == 'a' && | |
7344 | name[2] == 'p') | |
7345 | { /* map */ | |
7346 | return KEY_map; | |
7347 | } | |
7348 | ||
7349 | goto unknown; | |
7350 | ||
7351 | case 'n': | |
7352 | if (name[1] == 'o' && | |
7353 | name[2] == 't') | |
7354 | { /* not */ | |
7355 | return -KEY_not; | |
7356 | } | |
7357 | ||
7358 | goto unknown; | |
7359 | ||
7360 | case 'o': | |
7361 | switch (name[1]) | |
7362 | { | |
7363 | case 'c': | |
7364 | if (name[2] == 't') | |
7365 | { /* oct */ | |
7366 | return -KEY_oct; | |
7367 | } | |
7368 | ||
7369 | goto unknown; | |
7370 | ||
7371 | case 'r': | |
7372 | if (name[2] == 'd') | |
7373 | { /* ord */ | |
7374 | return -KEY_ord; | |
7375 | } | |
7376 | ||
7377 | goto unknown; | |
7378 | ||
7379 | case 'u': | |
7380 | if (name[2] == 'r') | |
7381 | { /* our */ | |
7382 | return KEY_our; | |
7383 | } | |
7384 | ||
7385 | goto unknown; | |
7386 | ||
7387 | default: | |
7388 | goto unknown; | |
7389 | } | |
7390 | ||
7391 | case 'p': | |
7392 | if (name[1] == 'o') | |
7393 | { | |
7394 | switch (name[2]) | |
7395 | { | |
7396 | case 'p': | |
7397 | { /* pop */ | |
7398 | return -KEY_pop; | |
7399 | } | |
7400 | ||
4c3bbe0f MHM |
7401 | case 's': |
7402 | { /* pos */ | |
7403 | return KEY_pos; | |
7404 | } | |
7405 | ||
4c3bbe0f MHM |
7406 | default: |
7407 | goto unknown; | |
7408 | } | |
7409 | } | |
7410 | ||
7411 | goto unknown; | |
7412 | ||
7413 | case 'r': | |
7414 | if (name[1] == 'e' && | |
7415 | name[2] == 'f') | |
7416 | { /* ref */ | |
7417 | return -KEY_ref; | |
7418 | } | |
7419 | ||
7420 | goto unknown; | |
7421 | ||
7422 | case 's': | |
7423 | switch (name[1]) | |
7424 | { | |
0d863452 RH |
7425 | case 'a': |
7426 | if (name[2] == 'y') | |
7427 | { /* say */ | |
e3e804c9 | 7428 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7429 | } |
7430 | ||
7431 | goto unknown; | |
7432 | ||
4c3bbe0f MHM |
7433 | case 'i': |
7434 | if (name[2] == 'n') | |
7435 | { /* sin */ | |
7436 | return -KEY_sin; | |
7437 | } | |
7438 | ||
7439 | goto unknown; | |
7440 | ||
7441 | case 'u': | |
7442 | if (name[2] == 'b') | |
7443 | { /* sub */ | |
7444 | return KEY_sub; | |
7445 | } | |
7446 | ||
7447 | goto unknown; | |
7448 | ||
7449 | default: | |
7450 | goto unknown; | |
7451 | } | |
7452 | ||
7453 | case 't': | |
7454 | if (name[1] == 'i' && | |
7455 | name[2] == 'e') | |
7456 | { /* tie */ | |
7457 | return KEY_tie; | |
7458 | } | |
7459 | ||
7460 | goto unknown; | |
7461 | ||
7462 | case 'u': | |
7463 | if (name[1] == 's' && | |
7464 | name[2] == 'e') | |
7465 | { /* use */ | |
7466 | return KEY_use; | |
7467 | } | |
7468 | ||
7469 | goto unknown; | |
7470 | ||
7471 | case 'v': | |
7472 | if (name[1] == 'e' && | |
7473 | name[2] == 'c') | |
7474 | { /* vec */ | |
7475 | return -KEY_vec; | |
7476 | } | |
7477 | ||
7478 | goto unknown; | |
7479 | ||
7480 | case 'x': | |
7481 | if (name[1] == 'o' && | |
7482 | name[2] == 'r') | |
7483 | { /* xor */ | |
7484 | return -KEY_xor; | |
7485 | } | |
7486 | ||
7487 | goto unknown; | |
7488 | ||
7489 | default: | |
7490 | goto unknown; | |
e2e1dd5a | 7491 | } |
4c3bbe0f | 7492 | |
0d863452 | 7493 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7494 | switch (name[0]) |
e2e1dd5a | 7495 | { |
4c3bbe0f MHM |
7496 | case 'C': |
7497 | if (name[1] == 'O' && | |
7498 | name[2] == 'R' && | |
7499 | name[3] == 'E') | |
7500 | { /* CORE */ | |
7501 | return -KEY_CORE; | |
7502 | } | |
7503 | ||
7504 | goto unknown; | |
7505 | ||
7506 | case 'I': | |
7507 | if (name[1] == 'N' && | |
7508 | name[2] == 'I' && | |
7509 | name[3] == 'T') | |
7510 | { /* INIT */ | |
7511 | return KEY_INIT; | |
7512 | } | |
7513 | ||
7514 | goto unknown; | |
7515 | ||
7516 | case 'b': | |
7517 | if (name[1] == 'i' && | |
7518 | name[2] == 'n' && | |
7519 | name[3] == 'd') | |
7520 | { /* bind */ | |
7521 | return -KEY_bind; | |
7522 | } | |
7523 | ||
7524 | goto unknown; | |
7525 | ||
7526 | case 'c': | |
7527 | if (name[1] == 'h' && | |
7528 | name[2] == 'o' && | |
7529 | name[3] == 'p') | |
7530 | { /* chop */ | |
7531 | return -KEY_chop; | |
7532 | } | |
7533 | ||
7534 | goto unknown; | |
7535 | ||
7536 | case 'd': | |
7537 | if (name[1] == 'u' && | |
7538 | name[2] == 'm' && | |
7539 | name[3] == 'p') | |
7540 | { /* dump */ | |
7541 | return -KEY_dump; | |
7542 | } | |
7543 | ||
7544 | goto unknown; | |
7545 | ||
7546 | case 'e': | |
7547 | switch (name[1]) | |
7548 | { | |
7549 | case 'a': | |
7550 | if (name[2] == 'c' && | |
7551 | name[3] == 'h') | |
7552 | { /* each */ | |
7553 | return -KEY_each; | |
7554 | } | |
7555 | ||
7556 | goto unknown; | |
7557 | ||
7558 | case 'l': | |
7559 | if (name[2] == 's' && | |
7560 | name[3] == 'e') | |
7561 | { /* else */ | |
7562 | return KEY_else; | |
7563 | } | |
7564 | ||
7565 | goto unknown; | |
7566 | ||
7567 | case 'v': | |
7568 | if (name[2] == 'a' && | |
7569 | name[3] == 'l') | |
7570 | { /* eval */ | |
7571 | return KEY_eval; | |
7572 | } | |
7573 | ||
7574 | goto unknown; | |
7575 | ||
7576 | case 'x': | |
7577 | switch (name[2]) | |
7578 | { | |
7579 | case 'e': | |
7580 | if (name[3] == 'c') | |
7581 | { /* exec */ | |
7582 | return -KEY_exec; | |
7583 | } | |
7584 | ||
7585 | goto unknown; | |
7586 | ||
7587 | case 'i': | |
7588 | if (name[3] == 't') | |
7589 | { /* exit */ | |
7590 | return -KEY_exit; | |
7591 | } | |
7592 | ||
7593 | goto unknown; | |
7594 | ||
7595 | default: | |
7596 | goto unknown; | |
7597 | } | |
7598 | ||
7599 | default: | |
7600 | goto unknown; | |
7601 | } | |
7602 | ||
7603 | case 'f': | |
7604 | if (name[1] == 'o' && | |
7605 | name[2] == 'r' && | |
7606 | name[3] == 'k') | |
7607 | { /* fork */ | |
7608 | return -KEY_fork; | |
7609 | } | |
7610 | ||
7611 | goto unknown; | |
7612 | ||
7613 | case 'g': | |
7614 | switch (name[1]) | |
7615 | { | |
7616 | case 'e': | |
7617 | if (name[2] == 't' && | |
7618 | name[3] == 'c') | |
7619 | { /* getc */ | |
7620 | return -KEY_getc; | |
7621 | } | |
7622 | ||
7623 | goto unknown; | |
7624 | ||
7625 | case 'l': | |
7626 | if (name[2] == 'o' && | |
7627 | name[3] == 'b') | |
7628 | { /* glob */ | |
7629 | return KEY_glob; | |
7630 | } | |
7631 | ||
7632 | goto unknown; | |
7633 | ||
7634 | case 'o': | |
7635 | if (name[2] == 't' && | |
7636 | name[3] == 'o') | |
7637 | { /* goto */ | |
7638 | return KEY_goto; | |
7639 | } | |
7640 | ||
7641 | goto unknown; | |
7642 | ||
7643 | case 'r': | |
7644 | if (name[2] == 'e' && | |
7645 | name[3] == 'p') | |
7646 | { /* grep */ | |
7647 | return KEY_grep; | |
7648 | } | |
7649 | ||
7650 | goto unknown; | |
7651 | ||
7652 | default: | |
7653 | goto unknown; | |
7654 | } | |
7655 | ||
7656 | case 'j': | |
7657 | if (name[1] == 'o' && | |
7658 | name[2] == 'i' && | |
7659 | name[3] == 'n') | |
7660 | { /* join */ | |
7661 | return -KEY_join; | |
7662 | } | |
7663 | ||
7664 | goto unknown; | |
7665 | ||
7666 | case 'k': | |
7667 | switch (name[1]) | |
7668 | { | |
7669 | case 'e': | |
7670 | if (name[2] == 'y' && | |
7671 | name[3] == 's') | |
7672 | { /* keys */ | |
7673 | return -KEY_keys; | |
7674 | } | |
7675 | ||
7676 | goto unknown; | |
7677 | ||
7678 | case 'i': | |
7679 | if (name[2] == 'l' && | |
7680 | name[3] == 'l') | |
7681 | { /* kill */ | |
7682 | return -KEY_kill; | |
7683 | } | |
7684 | ||
7685 | goto unknown; | |
7686 | ||
7687 | default: | |
7688 | goto unknown; | |
7689 | } | |
7690 | ||
7691 | case 'l': | |
7692 | switch (name[1]) | |
7693 | { | |
7694 | case 'a': | |
7695 | if (name[2] == 's' && | |
7696 | name[3] == 't') | |
7697 | { /* last */ | |
7698 | return KEY_last; | |
7699 | } | |
7700 | ||
7701 | goto unknown; | |
7702 | ||
7703 | case 'i': | |
7704 | if (name[2] == 'n' && | |
7705 | name[3] == 'k') | |
7706 | { /* link */ | |
7707 | return -KEY_link; | |
7708 | } | |
7709 | ||
7710 | goto unknown; | |
7711 | ||
7712 | case 'o': | |
7713 | if (name[2] == 'c' && | |
7714 | name[3] == 'k') | |
7715 | { /* lock */ | |
7716 | return -KEY_lock; | |
7717 | } | |
7718 | ||
7719 | goto unknown; | |
7720 | ||
7721 | default: | |
7722 | goto unknown; | |
7723 | } | |
7724 | ||
7725 | case 'n': | |
7726 | if (name[1] == 'e' && | |
7727 | name[2] == 'x' && | |
7728 | name[3] == 't') | |
7729 | { /* next */ | |
7730 | return KEY_next; | |
7731 | } | |
7732 | ||
7733 | goto unknown; | |
7734 | ||
7735 | case 'o': | |
7736 | if (name[1] == 'p' && | |
7737 | name[2] == 'e' && | |
7738 | name[3] == 'n') | |
7739 | { /* open */ | |
7740 | return -KEY_open; | |
7741 | } | |
7742 | ||
7743 | goto unknown; | |
7744 | ||
7745 | case 'p': | |
7746 | switch (name[1]) | |
7747 | { | |
7748 | case 'a': | |
7749 | if (name[2] == 'c' && | |
7750 | name[3] == 'k') | |
7751 | { /* pack */ | |
7752 | return -KEY_pack; | |
7753 | } | |
7754 | ||
7755 | goto unknown; | |
7756 | ||
7757 | case 'i': | |
7758 | if (name[2] == 'p' && | |
7759 | name[3] == 'e') | |
7760 | { /* pipe */ | |
7761 | return -KEY_pipe; | |
7762 | } | |
7763 | ||
7764 | goto unknown; | |
7765 | ||
7766 | case 'u': | |
7767 | if (name[2] == 's' && | |
7768 | name[3] == 'h') | |
7769 | { /* push */ | |
7770 | return -KEY_push; | |
7771 | } | |
7772 | ||
7773 | goto unknown; | |
7774 | ||
7775 | default: | |
7776 | goto unknown; | |
7777 | } | |
7778 | ||
7779 | case 'r': | |
7780 | switch (name[1]) | |
7781 | { | |
7782 | case 'a': | |
7783 | if (name[2] == 'n' && | |
7784 | name[3] == 'd') | |
7785 | { /* rand */ | |
7786 | return -KEY_rand; | |
7787 | } | |
7788 | ||
7789 | goto unknown; | |
7790 | ||
7791 | case 'e': | |
7792 | switch (name[2]) | |
7793 | { | |
7794 | case 'a': | |
7795 | if (name[3] == 'd') | |
7796 | { /* read */ | |
7797 | return -KEY_read; | |
7798 | } | |
7799 | ||
7800 | goto unknown; | |
7801 | ||
7802 | case 'c': | |
7803 | if (name[3] == 'v') | |
7804 | { /* recv */ | |
7805 | return -KEY_recv; | |
7806 | } | |
7807 | ||
7808 | goto unknown; | |
7809 | ||
7810 | case 'd': | |
7811 | if (name[3] == 'o') | |
7812 | { /* redo */ | |
7813 | return KEY_redo; | |
7814 | } | |
7815 | ||
7816 | goto unknown; | |
7817 | ||
7818 | default: | |
7819 | goto unknown; | |
7820 | } | |
7821 | ||
7822 | default: | |
7823 | goto unknown; | |
7824 | } | |
7825 | ||
7826 | case 's': | |
7827 | switch (name[1]) | |
7828 | { | |
7829 | case 'e': | |
7830 | switch (name[2]) | |
7831 | { | |
7832 | case 'e': | |
7833 | if (name[3] == 'k') | |
7834 | { /* seek */ | |
7835 | return -KEY_seek; | |
7836 | } | |
7837 | ||
7838 | goto unknown; | |
7839 | ||
7840 | case 'n': | |
7841 | if (name[3] == 'd') | |
7842 | { /* send */ | |
7843 | return -KEY_send; | |
7844 | } | |
7845 | ||
7846 | goto unknown; | |
7847 | ||
7848 | default: | |
7849 | goto unknown; | |
7850 | } | |
7851 | ||
7852 | case 'o': | |
7853 | if (name[2] == 'r' && | |
7854 | name[3] == 't') | |
7855 | { /* sort */ | |
7856 | return KEY_sort; | |
7857 | } | |
7858 | ||
7859 | goto unknown; | |
7860 | ||
7861 | case 'q': | |
7862 | if (name[2] == 'r' && | |
7863 | name[3] == 't') | |
7864 | { /* sqrt */ | |
7865 | return -KEY_sqrt; | |
7866 | } | |
7867 | ||
7868 | goto unknown; | |
7869 | ||
7870 | case 't': | |
7871 | if (name[2] == 'a' && | |
7872 | name[3] == 't') | |
7873 | { /* stat */ | |
7874 | return -KEY_stat; | |
7875 | } | |
7876 | ||
7877 | goto unknown; | |
7878 | ||
7879 | default: | |
7880 | goto unknown; | |
7881 | } | |
7882 | ||
7883 | case 't': | |
7884 | switch (name[1]) | |
7885 | { | |
7886 | case 'e': | |
7887 | if (name[2] == 'l' && | |
7888 | name[3] == 'l') | |
7889 | { /* tell */ | |
7890 | return -KEY_tell; | |
7891 | } | |
7892 | ||
7893 | goto unknown; | |
7894 | ||
7895 | case 'i': | |
7896 | switch (name[2]) | |
7897 | { | |
7898 | case 'e': | |
7899 | if (name[3] == 'd') | |
7900 | { /* tied */ | |
7901 | return KEY_tied; | |
7902 | } | |
7903 | ||
7904 | goto unknown; | |
7905 | ||
7906 | case 'm': | |
7907 | if (name[3] == 'e') | |
7908 | { /* time */ | |
7909 | return -KEY_time; | |
7910 | } | |
7911 | ||
7912 | goto unknown; | |
7913 | ||
7914 | default: | |
7915 | goto unknown; | |
7916 | } | |
7917 | ||
7918 | default: | |
7919 | goto unknown; | |
7920 | } | |
7921 | ||
7922 | case 'w': | |
0d863452 | 7923 | switch (name[1]) |
4c3bbe0f | 7924 | { |
0d863452 | 7925 | case 'a': |
952306ac RGS |
7926 | switch (name[2]) |
7927 | { | |
7928 | case 'i': | |
7929 | if (name[3] == 't') | |
7930 | { /* wait */ | |
7931 | return -KEY_wait; | |
7932 | } | |
4c3bbe0f | 7933 | |
952306ac | 7934 | goto unknown; |
4c3bbe0f | 7935 | |
952306ac RGS |
7936 | case 'r': |
7937 | if (name[3] == 'n') | |
7938 | { /* warn */ | |
7939 | return -KEY_warn; | |
7940 | } | |
4c3bbe0f | 7941 | |
952306ac | 7942 | goto unknown; |
4c3bbe0f | 7943 | |
952306ac RGS |
7944 | default: |
7945 | goto unknown; | |
7946 | } | |
0d863452 RH |
7947 | |
7948 | case 'h': | |
7949 | if (name[2] == 'e' && | |
7950 | name[3] == 'n') | |
7951 | { /* when */ | |
5458a98a | 7952 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7953 | } |
4c3bbe0f | 7954 | |
952306ac | 7955 | goto unknown; |
4c3bbe0f | 7956 | |
952306ac RGS |
7957 | default: |
7958 | goto unknown; | |
7959 | } | |
4c3bbe0f | 7960 | |
0d863452 RH |
7961 | default: |
7962 | goto unknown; | |
7963 | } | |
7964 | ||
952306ac | 7965 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7966 | switch (name[0]) |
e2e1dd5a | 7967 | { |
4c3bbe0f MHM |
7968 | case 'B': |
7969 | if (name[1] == 'E' && | |
7970 | name[2] == 'G' && | |
7971 | name[3] == 'I' && | |
7972 | name[4] == 'N') | |
7973 | { /* BEGIN */ | |
7974 | return KEY_BEGIN; | |
7975 | } | |
7976 | ||
7977 | goto unknown; | |
7978 | ||
7979 | case 'C': | |
7980 | if (name[1] == 'H' && | |
7981 | name[2] == 'E' && | |
7982 | name[3] == 'C' && | |
7983 | name[4] == 'K') | |
7984 | { /* CHECK */ | |
7985 | return KEY_CHECK; | |
7986 | } | |
7987 | ||
7988 | goto unknown; | |
7989 | ||
7990 | case 'a': | |
7991 | switch (name[1]) | |
7992 | { | |
7993 | case 'l': | |
7994 | if (name[2] == 'a' && | |
7995 | name[3] == 'r' && | |
7996 | name[4] == 'm') | |
7997 | { /* alarm */ | |
7998 | return -KEY_alarm; | |
7999 | } | |
8000 | ||
8001 | goto unknown; | |
8002 | ||
8003 | case 't': | |
8004 | if (name[2] == 'a' && | |
8005 | name[3] == 'n' && | |
8006 | name[4] == '2') | |
8007 | { /* atan2 */ | |
8008 | return -KEY_atan2; | |
8009 | } | |
8010 | ||
8011 | goto unknown; | |
8012 | ||
8013 | default: | |
8014 | goto unknown; | |
8015 | } | |
8016 | ||
8017 | case 'b': | |
0d863452 RH |
8018 | switch (name[1]) |
8019 | { | |
8020 | case 'l': | |
8021 | if (name[2] == 'e' && | |
952306ac RGS |
8022 | name[3] == 's' && |
8023 | name[4] == 's') | |
8024 | { /* bless */ | |
8025 | return -KEY_bless; | |
8026 | } | |
4c3bbe0f | 8027 | |
952306ac | 8028 | goto unknown; |
4c3bbe0f | 8029 | |
0d863452 RH |
8030 | case 'r': |
8031 | if (name[2] == 'e' && | |
8032 | name[3] == 'a' && | |
8033 | name[4] == 'k') | |
8034 | { /* break */ | |
5458a98a | 8035 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8036 | } |
8037 | ||
8038 | goto unknown; | |
8039 | ||
8040 | default: | |
8041 | goto unknown; | |
8042 | } | |
8043 | ||
4c3bbe0f MHM |
8044 | case 'c': |
8045 | switch (name[1]) | |
8046 | { | |
8047 | case 'h': | |
8048 | switch (name[2]) | |
8049 | { | |
8050 | case 'd': | |
8051 | if (name[3] == 'i' && | |
8052 | name[4] == 'r') | |
8053 | { /* chdir */ | |
8054 | return -KEY_chdir; | |
8055 | } | |
8056 | ||
8057 | goto unknown; | |
8058 | ||
8059 | case 'm': | |
8060 | if (name[3] == 'o' && | |
8061 | name[4] == 'd') | |
8062 | { /* chmod */ | |
8063 | return -KEY_chmod; | |
8064 | } | |
8065 | ||
8066 | goto unknown; | |
8067 | ||
8068 | case 'o': | |
8069 | switch (name[3]) | |
8070 | { | |
8071 | case 'm': | |
8072 | if (name[4] == 'p') | |
8073 | { /* chomp */ | |
8074 | return -KEY_chomp; | |
8075 | } | |
8076 | ||
8077 | goto unknown; | |
8078 | ||
8079 | case 'w': | |
8080 | if (name[4] == 'n') | |
8081 | { /* chown */ | |
8082 | return -KEY_chown; | |
8083 | } | |
8084 | ||
8085 | goto unknown; | |
8086 | ||
8087 | default: | |
8088 | goto unknown; | |
8089 | } | |
8090 | ||
8091 | default: | |
8092 | goto unknown; | |
8093 | } | |
8094 | ||
8095 | case 'l': | |
8096 | if (name[2] == 'o' && | |
8097 | name[3] == 's' && | |
8098 | name[4] == 'e') | |
8099 | { /* close */ | |
8100 | return -KEY_close; | |
8101 | } | |
8102 | ||
8103 | goto unknown; | |
8104 | ||
8105 | case 'r': | |
8106 | if (name[2] == 'y' && | |
8107 | name[3] == 'p' && | |
8108 | name[4] == 't') | |
8109 | { /* crypt */ | |
8110 | return -KEY_crypt; | |
8111 | } | |
8112 | ||
8113 | goto unknown; | |
8114 | ||
8115 | default: | |
8116 | goto unknown; | |
8117 | } | |
8118 | ||
8119 | case 'e': | |
8120 | if (name[1] == 'l' && | |
8121 | name[2] == 's' && | |
8122 | name[3] == 'i' && | |
8123 | name[4] == 'f') | |
8124 | { /* elsif */ | |
8125 | return KEY_elsif; | |
8126 | } | |
8127 | ||
8128 | goto unknown; | |
8129 | ||
8130 | case 'f': | |
8131 | switch (name[1]) | |
8132 | { | |
8133 | case 'c': | |
8134 | if (name[2] == 'n' && | |
8135 | name[3] == 't' && | |
8136 | name[4] == 'l') | |
8137 | { /* fcntl */ | |
8138 | return -KEY_fcntl; | |
8139 | } | |
8140 | ||
8141 | goto unknown; | |
8142 | ||
8143 | case 'l': | |
8144 | if (name[2] == 'o' && | |
8145 | name[3] == 'c' && | |
8146 | name[4] == 'k') | |
8147 | { /* flock */ | |
8148 | return -KEY_flock; | |
8149 | } | |
8150 | ||
8151 | goto unknown; | |
8152 | ||
8153 | default: | |
8154 | goto unknown; | |
8155 | } | |
8156 | ||
0d863452 RH |
8157 | case 'g': |
8158 | if (name[1] == 'i' && | |
8159 | name[2] == 'v' && | |
8160 | name[3] == 'e' && | |
8161 | name[4] == 'n') | |
8162 | { /* given */ | |
5458a98a | 8163 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8164 | } |
8165 | ||
8166 | goto unknown; | |
8167 | ||
4c3bbe0f MHM |
8168 | case 'i': |
8169 | switch (name[1]) | |
8170 | { | |
8171 | case 'n': | |
8172 | if (name[2] == 'd' && | |
8173 | name[3] == 'e' && | |
8174 | name[4] == 'x') | |
8175 | { /* index */ | |
8176 | return -KEY_index; | |
8177 | } | |
8178 | ||
8179 | goto unknown; | |
8180 | ||
8181 | case 'o': | |
8182 | if (name[2] == 'c' && | |
8183 | name[3] == 't' && | |
8184 | name[4] == 'l') | |
8185 | { /* ioctl */ | |
8186 | return -KEY_ioctl; | |
8187 | } | |
8188 | ||
8189 | goto unknown; | |
8190 | ||
8191 | default: | |
8192 | goto unknown; | |
8193 | } | |
8194 | ||
8195 | case 'l': | |
8196 | switch (name[1]) | |
8197 | { | |
8198 | case 'o': | |
8199 | if (name[2] == 'c' && | |
8200 | name[3] == 'a' && | |
8201 | name[4] == 'l') | |
8202 | { /* local */ | |
8203 | return KEY_local; | |
8204 | } | |
8205 | ||
8206 | goto unknown; | |
8207 | ||
8208 | case 's': | |
8209 | if (name[2] == 't' && | |
8210 | name[3] == 'a' && | |
8211 | name[4] == 't') | |
8212 | { /* lstat */ | |
8213 | return -KEY_lstat; | |
8214 | } | |
8215 | ||
8216 | goto unknown; | |
8217 | ||
8218 | default: | |
8219 | goto unknown; | |
8220 | } | |
8221 | ||
8222 | case 'm': | |
8223 | if (name[1] == 'k' && | |
8224 | name[2] == 'd' && | |
8225 | name[3] == 'i' && | |
8226 | name[4] == 'r') | |
8227 | { /* mkdir */ | |
8228 | return -KEY_mkdir; | |
8229 | } | |
8230 | ||
8231 | goto unknown; | |
8232 | ||
8233 | case 'p': | |
8234 | if (name[1] == 'r' && | |
8235 | name[2] == 'i' && | |
8236 | name[3] == 'n' && | |
8237 | name[4] == 't') | |
8238 | { /* print */ | |
8239 | return KEY_print; | |
8240 | } | |
8241 | ||
8242 | goto unknown; | |
8243 | ||
8244 | case 'r': | |
8245 | switch (name[1]) | |
8246 | { | |
8247 | case 'e': | |
8248 | if (name[2] == 's' && | |
8249 | name[3] == 'e' && | |
8250 | name[4] == 't') | |
8251 | { /* reset */ | |
8252 | return -KEY_reset; | |
8253 | } | |
8254 | ||
8255 | goto unknown; | |
8256 | ||
8257 | case 'm': | |
8258 | if (name[2] == 'd' && | |
8259 | name[3] == 'i' && | |
8260 | name[4] == 'r') | |
8261 | { /* rmdir */ | |
8262 | return -KEY_rmdir; | |
8263 | } | |
8264 | ||
8265 | goto unknown; | |
8266 | ||
8267 | default: | |
8268 | goto unknown; | |
8269 | } | |
8270 | ||
8271 | case 's': | |
8272 | switch (name[1]) | |
8273 | { | |
8274 | case 'e': | |
8275 | if (name[2] == 'm' && | |
8276 | name[3] == 'o' && | |
8277 | name[4] == 'p') | |
8278 | { /* semop */ | |
8279 | return -KEY_semop; | |
8280 | } | |
8281 | ||
8282 | goto unknown; | |
8283 | ||
8284 | case 'h': | |
8285 | if (name[2] == 'i' && | |
8286 | name[3] == 'f' && | |
8287 | name[4] == 't') | |
8288 | { /* shift */ | |
8289 | return -KEY_shift; | |
8290 | } | |
8291 | ||
8292 | goto unknown; | |
8293 | ||
8294 | case 'l': | |
8295 | if (name[2] == 'e' && | |
8296 | name[3] == 'e' && | |
8297 | name[4] == 'p') | |
8298 | { /* sleep */ | |
8299 | return -KEY_sleep; | |
8300 | } | |
8301 | ||
8302 | goto unknown; | |
8303 | ||
8304 | case 'p': | |
8305 | if (name[2] == 'l' && | |
8306 | name[3] == 'i' && | |
8307 | name[4] == 't') | |
8308 | { /* split */ | |
8309 | return KEY_split; | |
8310 | } | |
8311 | ||
8312 | goto unknown; | |
8313 | ||
8314 | case 'r': | |
8315 | if (name[2] == 'a' && | |
8316 | name[3] == 'n' && | |
8317 | name[4] == 'd') | |
8318 | { /* srand */ | |
8319 | return -KEY_srand; | |
8320 | } | |
8321 | ||
8322 | goto unknown; | |
8323 | ||
8324 | case 't': | |
952306ac RGS |
8325 | switch (name[2]) |
8326 | { | |
8327 | case 'a': | |
8328 | if (name[3] == 't' && | |
8329 | name[4] == 'e') | |
8330 | { /* state */ | |
5458a98a | 8331 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8332 | } |
4c3bbe0f | 8333 | |
952306ac RGS |
8334 | goto unknown; |
8335 | ||
8336 | case 'u': | |
8337 | if (name[3] == 'd' && | |
8338 | name[4] == 'y') | |
8339 | { /* study */ | |
8340 | return KEY_study; | |
8341 | } | |
8342 | ||
8343 | goto unknown; | |
8344 | ||
8345 | default: | |
8346 | goto unknown; | |
8347 | } | |
4c3bbe0f MHM |
8348 | |
8349 | default: | |
8350 | goto unknown; | |
8351 | } | |
8352 | ||
8353 | case 't': | |
8354 | if (name[1] == 'i' && | |
8355 | name[2] == 'm' && | |
8356 | name[3] == 'e' && | |
8357 | name[4] == 's') | |
8358 | { /* times */ | |
8359 | return -KEY_times; | |
8360 | } | |
8361 | ||
8362 | goto unknown; | |
8363 | ||
8364 | case 'u': | |
8365 | switch (name[1]) | |
8366 | { | |
8367 | case 'm': | |
8368 | if (name[2] == 'a' && | |
8369 | name[3] == 's' && | |
8370 | name[4] == 'k') | |
8371 | { /* umask */ | |
8372 | return -KEY_umask; | |
8373 | } | |
8374 | ||
8375 | goto unknown; | |
8376 | ||
8377 | case 'n': | |
8378 | switch (name[2]) | |
8379 | { | |
8380 | case 'd': | |
8381 | if (name[3] == 'e' && | |
8382 | name[4] == 'f') | |
8383 | { /* undef */ | |
8384 | return KEY_undef; | |
8385 | } | |
8386 | ||
8387 | goto unknown; | |
8388 | ||
8389 | case 't': | |
8390 | if (name[3] == 'i') | |
8391 | { | |
8392 | switch (name[4]) | |
8393 | { | |
8394 | case 'e': | |
8395 | { /* untie */ | |
8396 | return KEY_untie; | |
8397 | } | |
8398 | ||
4c3bbe0f MHM |
8399 | case 'l': |
8400 | { /* until */ | |
8401 | return KEY_until; | |
8402 | } | |
8403 | ||
4c3bbe0f MHM |
8404 | default: |
8405 | goto unknown; | |
8406 | } | |
8407 | } | |
8408 | ||
8409 | goto unknown; | |
8410 | ||
8411 | default: | |
8412 | goto unknown; | |
8413 | } | |
8414 | ||
8415 | case 't': | |
8416 | if (name[2] == 'i' && | |
8417 | name[3] == 'm' && | |
8418 | name[4] == 'e') | |
8419 | { /* utime */ | |
8420 | return -KEY_utime; | |
8421 | } | |
8422 | ||
8423 | goto unknown; | |
8424 | ||
8425 | default: | |
8426 | goto unknown; | |
8427 | } | |
8428 | ||
8429 | case 'w': | |
8430 | switch (name[1]) | |
8431 | { | |
8432 | case 'h': | |
8433 | if (name[2] == 'i' && | |
8434 | name[3] == 'l' && | |
8435 | name[4] == 'e') | |
8436 | { /* while */ | |
8437 | return KEY_while; | |
8438 | } | |
8439 | ||
8440 | goto unknown; | |
8441 | ||
8442 | case 'r': | |
8443 | if (name[2] == 'i' && | |
8444 | name[3] == 't' && | |
8445 | name[4] == 'e') | |
8446 | { /* write */ | |
8447 | return -KEY_write; | |
8448 | } | |
8449 | ||
8450 | goto unknown; | |
8451 | ||
8452 | default: | |
8453 | goto unknown; | |
8454 | } | |
8455 | ||
8456 | default: | |
8457 | goto unknown; | |
e2e1dd5a | 8458 | } |
4c3bbe0f MHM |
8459 | |
8460 | case 6: /* 33 tokens of length 6 */ | |
8461 | switch (name[0]) | |
8462 | { | |
8463 | case 'a': | |
8464 | if (name[1] == 'c' && | |
8465 | name[2] == 'c' && | |
8466 | name[3] == 'e' && | |
8467 | name[4] == 'p' && | |
8468 | name[5] == 't') | |
8469 | { /* accept */ | |
8470 | return -KEY_accept; | |
8471 | } | |
8472 | ||
8473 | goto unknown; | |
8474 | ||
8475 | case 'c': | |
8476 | switch (name[1]) | |
8477 | { | |
8478 | case 'a': | |
8479 | if (name[2] == 'l' && | |
8480 | name[3] == 'l' && | |
8481 | name[4] == 'e' && | |
8482 | name[5] == 'r') | |
8483 | { /* caller */ | |
8484 | return -KEY_caller; | |
8485 | } | |
8486 | ||
8487 | goto unknown; | |
8488 | ||
8489 | case 'h': | |
8490 | if (name[2] == 'r' && | |
8491 | name[3] == 'o' && | |
8492 | name[4] == 'o' && | |
8493 | name[5] == 't') | |
8494 | { /* chroot */ | |
8495 | return -KEY_chroot; | |
8496 | } | |
8497 | ||
8498 | goto unknown; | |
8499 | ||
8500 | default: | |
8501 | goto unknown; | |
8502 | } | |
8503 | ||
8504 | case 'd': | |
8505 | if (name[1] == 'e' && | |
8506 | name[2] == 'l' && | |
8507 | name[3] == 'e' && | |
8508 | name[4] == 't' && | |
8509 | name[5] == 'e') | |
8510 | { /* delete */ | |
8511 | return KEY_delete; | |
8512 | } | |
8513 | ||
8514 | goto unknown; | |
8515 | ||
8516 | case 'e': | |
8517 | switch (name[1]) | |
8518 | { | |
8519 | case 'l': | |
8520 | if (name[2] == 's' && | |
8521 | name[3] == 'e' && | |
8522 | name[4] == 'i' && | |
8523 | name[5] == 'f') | |
8524 | { /* elseif */ | |
8525 | if(ckWARN_d(WARN_SYNTAX)) | |
8526 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8527 | } | |
8528 | ||
8529 | goto unknown; | |
8530 | ||
8531 | case 'x': | |
8532 | if (name[2] == 'i' && | |
8533 | name[3] == 's' && | |
8534 | name[4] == 't' && | |
8535 | name[5] == 's') | |
8536 | { /* exists */ | |
8537 | return KEY_exists; | |
8538 | } | |
8539 | ||
8540 | goto unknown; | |
8541 | ||
8542 | default: | |
8543 | goto unknown; | |
8544 | } | |
8545 | ||
8546 | case 'f': | |
8547 | switch (name[1]) | |
8548 | { | |
8549 | case 'i': | |
8550 | if (name[2] == 'l' && | |
8551 | name[3] == 'e' && | |
8552 | name[4] == 'n' && | |
8553 | name[5] == 'o') | |
8554 | { /* fileno */ | |
8555 | return -KEY_fileno; | |
8556 | } | |
8557 | ||
8558 | goto unknown; | |
8559 | ||
8560 | case 'o': | |
8561 | if (name[2] == 'r' && | |
8562 | name[3] == 'm' && | |
8563 | name[4] == 'a' && | |
8564 | name[5] == 't') | |
8565 | { /* format */ | |
8566 | return KEY_format; | |
8567 | } | |
8568 | ||
8569 | goto unknown; | |
8570 | ||
8571 | default: | |
8572 | goto unknown; | |
8573 | } | |
8574 | ||
8575 | case 'g': | |
8576 | if (name[1] == 'm' && | |
8577 | name[2] == 't' && | |
8578 | name[3] == 'i' && | |
8579 | name[4] == 'm' && | |
8580 | name[5] == 'e') | |
8581 | { /* gmtime */ | |
8582 | return -KEY_gmtime; | |
8583 | } | |
8584 | ||
8585 | goto unknown; | |
8586 | ||
8587 | case 'l': | |
8588 | switch (name[1]) | |
8589 | { | |
8590 | case 'e': | |
8591 | if (name[2] == 'n' && | |
8592 | name[3] == 'g' && | |
8593 | name[4] == 't' && | |
8594 | name[5] == 'h') | |
8595 | { /* length */ | |
8596 | return -KEY_length; | |
8597 | } | |
8598 | ||
8599 | goto unknown; | |
8600 | ||
8601 | case 'i': | |
8602 | if (name[2] == 's' && | |
8603 | name[3] == 't' && | |
8604 | name[4] == 'e' && | |
8605 | name[5] == 'n') | |
8606 | { /* listen */ | |
8607 | return -KEY_listen; | |
8608 | } | |
8609 | ||
8610 | goto unknown; | |
8611 | ||
8612 | default: | |
8613 | goto unknown; | |
8614 | } | |
8615 | ||
8616 | case 'm': | |
8617 | if (name[1] == 's' && | |
8618 | name[2] == 'g') | |
8619 | { | |
8620 | switch (name[3]) | |
8621 | { | |
8622 | case 'c': | |
8623 | if (name[4] == 't' && | |
8624 | name[5] == 'l') | |
8625 | { /* msgctl */ | |
8626 | return -KEY_msgctl; | |
8627 | } | |
8628 | ||
8629 | goto unknown; | |
8630 | ||
8631 | case 'g': | |
8632 | if (name[4] == 'e' && | |
8633 | name[5] == 't') | |
8634 | { /* msgget */ | |
8635 | return -KEY_msgget; | |
8636 | } | |
8637 | ||
8638 | goto unknown; | |
8639 | ||
8640 | case 'r': | |
8641 | if (name[4] == 'c' && | |
8642 | name[5] == 'v') | |
8643 | { /* msgrcv */ | |
8644 | return -KEY_msgrcv; | |
8645 | } | |
8646 | ||
8647 | goto unknown; | |
8648 | ||
8649 | case 's': | |
8650 | if (name[4] == 'n' && | |
8651 | name[5] == 'd') | |
8652 | { /* msgsnd */ | |
8653 | return -KEY_msgsnd; | |
8654 | } | |
8655 | ||
8656 | goto unknown; | |
8657 | ||
8658 | default: | |
8659 | goto unknown; | |
8660 | } | |
8661 | } | |
8662 | ||
8663 | goto unknown; | |
8664 | ||
8665 | case 'p': | |
8666 | if (name[1] == 'r' && | |
8667 | name[2] == 'i' && | |
8668 | name[3] == 'n' && | |
8669 | name[4] == 't' && | |
8670 | name[5] == 'f') | |
8671 | { /* printf */ | |
8672 | return KEY_printf; | |
8673 | } | |
8674 | ||
8675 | goto unknown; | |
8676 | ||
8677 | case 'r': | |
8678 | switch (name[1]) | |
8679 | { | |
8680 | case 'e': | |
8681 | switch (name[2]) | |
8682 | { | |
8683 | case 'n': | |
8684 | if (name[3] == 'a' && | |
8685 | name[4] == 'm' && | |
8686 | name[5] == 'e') | |
8687 | { /* rename */ | |
8688 | return -KEY_rename; | |
8689 | } | |
8690 | ||
8691 | goto unknown; | |
8692 | ||
8693 | case 't': | |
8694 | if (name[3] == 'u' && | |
8695 | name[4] == 'r' && | |
8696 | name[5] == 'n') | |
8697 | { /* return */ | |
8698 | return KEY_return; | |
8699 | } | |
8700 | ||
8701 | goto unknown; | |
8702 | ||
8703 | default: | |
8704 | goto unknown; | |
8705 | } | |
8706 | ||
8707 | case 'i': | |
8708 | if (name[2] == 'n' && | |
8709 | name[3] == 'd' && | |
8710 | name[4] == 'e' && | |
8711 | name[5] == 'x') | |
8712 | { /* rindex */ | |
8713 | return -KEY_rindex; | |
8714 | } | |
8715 | ||
8716 | goto unknown; | |
8717 | ||
8718 | default: | |
8719 | goto unknown; | |
8720 | } | |
8721 | ||
8722 | case 's': | |
8723 | switch (name[1]) | |
8724 | { | |
8725 | case 'c': | |
8726 | if (name[2] == 'a' && | |
8727 | name[3] == 'l' && | |
8728 | name[4] == 'a' && | |
8729 | name[5] == 'r') | |
8730 | { /* scalar */ | |
8731 | return KEY_scalar; | |
8732 | } | |
8733 | ||
8734 | goto unknown; | |
8735 | ||
8736 | case 'e': | |
8737 | switch (name[2]) | |
8738 | { | |
8739 | case 'l': | |
8740 | if (name[3] == 'e' && | |
8741 | name[4] == 'c' && | |
8742 | name[5] == 't') | |
8743 | { /* select */ | |
8744 | return -KEY_select; | |
8745 | } | |
8746 | ||
8747 | goto unknown; | |
8748 | ||
8749 | case 'm': | |
8750 | switch (name[3]) | |
8751 | { | |
8752 | case 'c': | |
8753 | if (name[4] == 't' && | |
8754 | name[5] == 'l') | |
8755 | { /* semctl */ | |
8756 | return -KEY_semctl; | |
8757 | } | |
8758 | ||
8759 | goto unknown; | |
8760 | ||
8761 | case 'g': | |
8762 | if (name[4] == 'e' && | |
8763 | name[5] == 't') | |
8764 | { /* semget */ | |
8765 | return -KEY_semget; | |
8766 | } | |
8767 | ||
8768 | goto unknown; | |
8769 | ||
8770 | default: | |
8771 | goto unknown; | |
8772 | } | |
8773 | ||
8774 | default: | |
8775 | goto unknown; | |
8776 | } | |
8777 | ||
8778 | case 'h': | |
8779 | if (name[2] == 'm') | |
8780 | { | |
8781 | switch (name[3]) | |
8782 | { | |
8783 | case 'c': | |
8784 | if (name[4] == 't' && | |
8785 | name[5] == 'l') | |
8786 | { /* shmctl */ | |
8787 | return -KEY_shmctl; | |
8788 | } | |
8789 | ||
8790 | goto unknown; | |
8791 | ||
8792 | case 'g': | |
8793 | if (name[4] == 'e' && | |
8794 | name[5] == 't') | |
8795 | { /* shmget */ | |
8796 | return -KEY_shmget; | |
8797 | } | |
8798 | ||
8799 | goto unknown; | |
8800 | ||
8801 | default: | |
8802 | goto unknown; | |
8803 | } | |
8804 | } | |
8805 | ||
8806 | goto unknown; | |
8807 | ||
8808 | case 'o': | |
8809 | if (name[2] == 'c' && | |
8810 | name[3] == 'k' && | |
8811 | name[4] == 'e' && | |
8812 | name[5] == 't') | |
8813 | { /* socket */ | |
8814 | return -KEY_socket; | |
8815 | } | |
8816 | ||
8817 | goto unknown; | |
8818 | ||
8819 | case 'p': | |
8820 | if (name[2] == 'l' && | |
8821 | name[3] == 'i' && | |
8822 | name[4] == 'c' && | |
8823 | name[5] == 'e') | |
8824 | { /* splice */ | |
8825 | return -KEY_splice; | |
8826 | } | |
8827 | ||
8828 | goto unknown; | |
8829 | ||
8830 | case 'u': | |
8831 | if (name[2] == 'b' && | |
8832 | name[3] == 's' && | |
8833 | name[4] == 't' && | |
8834 | name[5] == 'r') | |
8835 | { /* substr */ | |
8836 | return -KEY_substr; | |
8837 | } | |
8838 | ||
8839 | goto unknown; | |
8840 | ||
8841 | case 'y': | |
8842 | if (name[2] == 's' && | |
8843 | name[3] == 't' && | |
8844 | name[4] == 'e' && | |
8845 | name[5] == 'm') | |
8846 | { /* system */ | |
8847 | return -KEY_system; | |
8848 | } | |
8849 | ||
8850 | goto unknown; | |
8851 | ||
8852 | default: | |
8853 | goto unknown; | |
8854 | } | |
8855 | ||
8856 | case 'u': | |
8857 | if (name[1] == 'n') | |
8858 | { | |
8859 | switch (name[2]) | |
8860 | { | |
8861 | case 'l': | |
8862 | switch (name[3]) | |
8863 | { | |
8864 | case 'e': | |
8865 | if (name[4] == 's' && | |
8866 | name[5] == 's') | |
8867 | { /* unless */ | |
8868 | return KEY_unless; | |
8869 | } | |
8870 | ||
8871 | goto unknown; | |
8872 | ||
8873 | case 'i': | |
8874 | if (name[4] == 'n' && | |
8875 | name[5] == 'k') | |
8876 | { /* unlink */ | |
8877 | return -KEY_unlink; | |
8878 | } | |
8879 | ||
8880 | goto unknown; | |
8881 | ||
8882 | default: | |
8883 | goto unknown; | |
8884 | } | |
8885 | ||
8886 | case 'p': | |
8887 | if (name[3] == 'a' && | |
8888 | name[4] == 'c' && | |
8889 | name[5] == 'k') | |
8890 | { /* unpack */ | |
8891 | return -KEY_unpack; | |
8892 | } | |
8893 | ||
8894 | goto unknown; | |
8895 | ||
8896 | default: | |
8897 | goto unknown; | |
8898 | } | |
8899 | } | |
8900 | ||
8901 | goto unknown; | |
8902 | ||
8903 | case 'v': | |
8904 | if (name[1] == 'a' && | |
8905 | name[2] == 'l' && | |
8906 | name[3] == 'u' && | |
8907 | name[4] == 'e' && | |
8908 | name[5] == 's') | |
8909 | { /* values */ | |
8910 | return -KEY_values; | |
8911 | } | |
8912 | ||
8913 | goto unknown; | |
8914 | ||
8915 | default: | |
8916 | goto unknown; | |
e2e1dd5a | 8917 | } |
4c3bbe0f | 8918 | |
0d863452 | 8919 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8920 | switch (name[0]) |
8921 | { | |
8922 | case 'D': | |
8923 | if (name[1] == 'E' && | |
8924 | name[2] == 'S' && | |
8925 | name[3] == 'T' && | |
8926 | name[4] == 'R' && | |
8927 | name[5] == 'O' && | |
8928 | name[6] == 'Y') | |
8929 | { /* DESTROY */ | |
8930 | return KEY_DESTROY; | |
8931 | } | |
8932 | ||
8933 | goto unknown; | |
8934 | ||
8935 | case '_': | |
8936 | if (name[1] == '_' && | |
8937 | name[2] == 'E' && | |
8938 | name[3] == 'N' && | |
8939 | name[4] == 'D' && | |
8940 | name[5] == '_' && | |
8941 | name[6] == '_') | |
8942 | { /* __END__ */ | |
8943 | return KEY___END__; | |
8944 | } | |
8945 | ||
8946 | goto unknown; | |
8947 | ||
8948 | case 'b': | |
8949 | if (name[1] == 'i' && | |
8950 | name[2] == 'n' && | |
8951 | name[3] == 'm' && | |
8952 | name[4] == 'o' && | |
8953 | name[5] == 'd' && | |
8954 | name[6] == 'e') | |
8955 | { /* binmode */ | |
8956 | return -KEY_binmode; | |
8957 | } | |
8958 | ||
8959 | goto unknown; | |
8960 | ||
8961 | case 'c': | |
8962 | if (name[1] == 'o' && | |
8963 | name[2] == 'n' && | |
8964 | name[3] == 'n' && | |
8965 | name[4] == 'e' && | |
8966 | name[5] == 'c' && | |
8967 | name[6] == 't') | |
8968 | { /* connect */ | |
8969 | return -KEY_connect; | |
8970 | } | |
8971 | ||
8972 | goto unknown; | |
8973 | ||
8974 | case 'd': | |
8975 | switch (name[1]) | |
8976 | { | |
8977 | case 'b': | |
8978 | if (name[2] == 'm' && | |
8979 | name[3] == 'o' && | |
8980 | name[4] == 'p' && | |
8981 | name[5] == 'e' && | |
8982 | name[6] == 'n') | |
8983 | { /* dbmopen */ | |
8984 | return -KEY_dbmopen; | |
8985 | } | |
8986 | ||
8987 | goto unknown; | |
8988 | ||
8989 | case 'e': | |
0d863452 RH |
8990 | if (name[2] == 'f') |
8991 | { | |
8992 | switch (name[3]) | |
8993 | { | |
8994 | case 'a': | |
8995 | if (name[4] == 'u' && | |
8996 | name[5] == 'l' && | |
8997 | name[6] == 't') | |
8998 | { /* default */ | |
5458a98a | 8999 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9000 | } |
9001 | ||
9002 | goto unknown; | |
9003 | ||
9004 | case 'i': | |
9005 | if (name[4] == 'n' && | |
952306ac RGS |
9006 | name[5] == 'e' && |
9007 | name[6] == 'd') | |
9008 | { /* defined */ | |
9009 | return KEY_defined; | |
9010 | } | |
4c3bbe0f | 9011 | |
952306ac | 9012 | goto unknown; |
4c3bbe0f | 9013 | |
952306ac RGS |
9014 | default: |
9015 | goto unknown; | |
9016 | } | |
0d863452 RH |
9017 | } |
9018 | ||
9019 | goto unknown; | |
9020 | ||
9021 | default: | |
9022 | goto unknown; | |
9023 | } | |
4c3bbe0f MHM |
9024 | |
9025 | case 'f': | |
9026 | if (name[1] == 'o' && | |
9027 | name[2] == 'r' && | |
9028 | name[3] == 'e' && | |
9029 | name[4] == 'a' && | |
9030 | name[5] == 'c' && | |
9031 | name[6] == 'h') | |
9032 | { /* foreach */ | |
9033 | return KEY_foreach; | |
9034 | } | |
9035 | ||
9036 | goto unknown; | |
9037 | ||
9038 | case 'g': | |
9039 | if (name[1] == 'e' && | |
9040 | name[2] == 't' && | |
9041 | name[3] == 'p') | |
9042 | { | |
9043 | switch (name[4]) | |
9044 | { | |
9045 | case 'g': | |
9046 | if (name[5] == 'r' && | |
9047 | name[6] == 'p') | |
9048 | { /* getpgrp */ | |
9049 | return -KEY_getpgrp; | |
9050 | } | |
9051 | ||
9052 | goto unknown; | |
9053 | ||
9054 | case 'p': | |
9055 | if (name[5] == 'i' && | |
9056 | name[6] == 'd') | |
9057 | { /* getppid */ | |
9058 | return -KEY_getppid; | |
9059 | } | |
9060 | ||
9061 | goto unknown; | |
9062 | ||
9063 | default: | |
9064 | goto unknown; | |
9065 | } | |
9066 | } | |
9067 | ||
9068 | goto unknown; | |
9069 | ||
9070 | case 'l': | |
9071 | if (name[1] == 'c' && | |
9072 | name[2] == 'f' && | |
9073 | name[3] == 'i' && | |
9074 | name[4] == 'r' && | |
9075 | name[5] == 's' && | |
9076 | name[6] == 't') | |
9077 | { /* lcfirst */ | |
9078 | return -KEY_lcfirst; | |
9079 | } | |
9080 | ||
9081 | goto unknown; | |
9082 | ||
9083 | case 'o': | |
9084 | if (name[1] == 'p' && | |
9085 | name[2] == 'e' && | |
9086 | name[3] == 'n' && | |
9087 | name[4] == 'd' && | |
9088 | name[5] == 'i' && | |
9089 | name[6] == 'r') | |
9090 | { /* opendir */ | |
9091 | return -KEY_opendir; | |
9092 | } | |
9093 | ||
9094 | goto unknown; | |
9095 | ||
9096 | case 'p': | |
9097 | if (name[1] == 'a' && | |
9098 | name[2] == 'c' && | |
9099 | name[3] == 'k' && | |
9100 | name[4] == 'a' && | |
9101 | name[5] == 'g' && | |
9102 | name[6] == 'e') | |
9103 | { /* package */ | |
9104 | return KEY_package; | |
9105 | } | |
9106 | ||
9107 | goto unknown; | |
9108 | ||
9109 | case 'r': | |
9110 | if (name[1] == 'e') | |
9111 | { | |
9112 | switch (name[2]) | |
9113 | { | |
9114 | case 'a': | |
9115 | if (name[3] == 'd' && | |
9116 | name[4] == 'd' && | |
9117 | name[5] == 'i' && | |
9118 | name[6] == 'r') | |
9119 | { /* readdir */ | |
9120 | return -KEY_readdir; | |
9121 | } | |
9122 | ||
9123 | goto unknown; | |
9124 | ||
9125 | case 'q': | |
9126 | if (name[3] == 'u' && | |
9127 | name[4] == 'i' && | |
9128 | name[5] == 'r' && | |
9129 | name[6] == 'e') | |
9130 | { /* require */ | |
9131 | return KEY_require; | |
9132 | } | |
9133 | ||
9134 | goto unknown; | |
9135 | ||
9136 | case 'v': | |
9137 | if (name[3] == 'e' && | |
9138 | name[4] == 'r' && | |
9139 | name[5] == 's' && | |
9140 | name[6] == 'e') | |
9141 | { /* reverse */ | |
9142 | return -KEY_reverse; | |
9143 | } | |
9144 | ||
9145 | goto unknown; | |
9146 | ||
9147 | default: | |
9148 | goto unknown; | |
9149 | } | |
9150 | } | |
9151 | ||
9152 | goto unknown; | |
9153 | ||
9154 | case 's': | |
9155 | switch (name[1]) | |
9156 | { | |
9157 | case 'e': | |
9158 | switch (name[2]) | |
9159 | { | |
9160 | case 'e': | |
9161 | if (name[3] == 'k' && | |
9162 | name[4] == 'd' && | |
9163 | name[5] == 'i' && | |
9164 | name[6] == 'r') | |
9165 | { /* seekdir */ | |
9166 | return -KEY_seekdir; | |
9167 | } | |
9168 | ||
9169 | goto unknown; | |
9170 | ||
9171 | case 't': | |
9172 | if (name[3] == 'p' && | |
9173 | name[4] == 'g' && | |
9174 | name[5] == 'r' && | |
9175 | name[6] == 'p') | |
9176 | { /* setpgrp */ | |
9177 | return -KEY_setpgrp; | |
9178 | } | |
9179 | ||
9180 | goto unknown; | |
9181 | ||
9182 | default: | |
9183 | goto unknown; | |
9184 | } | |
9185 | ||
9186 | case 'h': | |
9187 | if (name[2] == 'm' && | |
9188 | name[3] == 'r' && | |
9189 | name[4] == 'e' && | |
9190 | name[5] == 'a' && | |
9191 | name[6] == 'd') | |
9192 | { /* shmread */ | |
9193 | return -KEY_shmread; | |
9194 | } | |
9195 | ||
9196 | goto unknown; | |
9197 | ||
9198 | case 'p': | |
9199 | if (name[2] == 'r' && | |
9200 | name[3] == 'i' && | |
9201 | name[4] == 'n' && | |
9202 | name[5] == 't' && | |
9203 | name[6] == 'f') | |
9204 | { /* sprintf */ | |
9205 | return -KEY_sprintf; | |
9206 | } | |
9207 | ||
9208 | goto unknown; | |
9209 | ||
9210 | case 'y': | |
9211 | switch (name[2]) | |
9212 | { | |
9213 | case 'm': | |
9214 | if (name[3] == 'l' && | |
9215 | name[4] == 'i' && | |
9216 | name[5] == 'n' && | |
9217 | name[6] == 'k') | |
9218 | { /* symlink */ | |
9219 | return -KEY_symlink; | |
9220 | } | |
9221 | ||
9222 | goto unknown; | |
9223 | ||
9224 | case 's': | |
9225 | switch (name[3]) | |
9226 | { | |
9227 | case 'c': | |
9228 | if (name[4] == 'a' && | |
9229 | name[5] == 'l' && | |
9230 | name[6] == 'l') | |
9231 | { /* syscall */ | |
9232 | return -KEY_syscall; | |
9233 | } | |
9234 | ||
9235 | goto unknown; | |
9236 | ||
9237 | case 'o': | |
9238 | if (name[4] == 'p' && | |
9239 | name[5] == 'e' && | |
9240 | name[6] == 'n') | |
9241 | { /* sysopen */ | |
9242 | return -KEY_sysopen; | |
9243 | } | |
9244 | ||
9245 | goto unknown; | |
9246 | ||
9247 | case 'r': | |
9248 | if (name[4] == 'e' && | |
9249 | name[5] == 'a' && | |
9250 | name[6] == 'd') | |
9251 | { /* sysread */ | |
9252 | return -KEY_sysread; | |
9253 | } | |
9254 | ||
9255 | goto unknown; | |
9256 | ||
9257 | case 's': | |
9258 | if (name[4] == 'e' && | |
9259 | name[5] == 'e' && | |
9260 | name[6] == 'k') | |
9261 | { /* sysseek */ | |
9262 | return -KEY_sysseek; | |
9263 | } | |
9264 | ||
9265 | goto unknown; | |
9266 | ||
9267 | default: | |
9268 | goto unknown; | |
9269 | } | |
9270 | ||
9271 | default: | |
9272 | goto unknown; | |
9273 | } | |
9274 | ||
9275 | default: | |
9276 | goto unknown; | |
9277 | } | |
9278 | ||
9279 | case 't': | |
9280 | if (name[1] == 'e' && | |
9281 | name[2] == 'l' && | |
9282 | name[3] == 'l' && | |
9283 | name[4] == 'd' && | |
9284 | name[5] == 'i' && | |
9285 | name[6] == 'r') | |
9286 | { /* telldir */ | |
9287 | return -KEY_telldir; | |
9288 | } | |
9289 | ||
9290 | goto unknown; | |
9291 | ||
9292 | case 'u': | |
9293 | switch (name[1]) | |
9294 | { | |
9295 | case 'c': | |
9296 | if (name[2] == 'f' && | |
9297 | name[3] == 'i' && | |
9298 | name[4] == 'r' && | |
9299 | name[5] == 's' && | |
9300 | name[6] == 't') | |
9301 | { /* ucfirst */ | |
9302 | return -KEY_ucfirst; | |
9303 | } | |
9304 | ||
9305 | goto unknown; | |
9306 | ||
9307 | case 'n': | |
9308 | if (name[2] == 's' && | |
9309 | name[3] == 'h' && | |
9310 | name[4] == 'i' && | |
9311 | name[5] == 'f' && | |
9312 | name[6] == 't') | |
9313 | { /* unshift */ | |
9314 | return -KEY_unshift; | |
9315 | } | |
9316 | ||
9317 | goto unknown; | |
9318 | ||
9319 | default: | |
9320 | goto unknown; | |
9321 | } | |
9322 | ||
9323 | case 'w': | |
9324 | if (name[1] == 'a' && | |
9325 | name[2] == 'i' && | |
9326 | name[3] == 't' && | |
9327 | name[4] == 'p' && | |
9328 | name[5] == 'i' && | |
9329 | name[6] == 'd') | |
9330 | { /* waitpid */ | |
9331 | return -KEY_waitpid; | |
9332 | } | |
9333 | ||
9334 | goto unknown; | |
9335 | ||
9336 | default: | |
9337 | goto unknown; | |
9338 | } | |
9339 | ||
9340 | case 8: /* 26 tokens of length 8 */ | |
9341 | switch (name[0]) | |
9342 | { | |
9343 | case 'A': | |
9344 | if (name[1] == 'U' && | |
9345 | name[2] == 'T' && | |
9346 | name[3] == 'O' && | |
9347 | name[4] == 'L' && | |
9348 | name[5] == 'O' && | |
9349 | name[6] == 'A' && | |
9350 | name[7] == 'D') | |
9351 | { /* AUTOLOAD */ | |
9352 | return KEY_AUTOLOAD; | |
9353 | } | |
9354 | ||
9355 | goto unknown; | |
9356 | ||
9357 | case '_': | |
9358 | if (name[1] == '_') | |
9359 | { | |
9360 | switch (name[2]) | |
9361 | { | |
9362 | case 'D': | |
9363 | if (name[3] == 'A' && | |
9364 | name[4] == 'T' && | |
9365 | name[5] == 'A' && | |
9366 | name[6] == '_' && | |
9367 | name[7] == '_') | |
9368 | { /* __DATA__ */ | |
9369 | return KEY___DATA__; | |
9370 | } | |
9371 | ||
9372 | goto unknown; | |
9373 | ||
9374 | case 'F': | |
9375 | if (name[3] == 'I' && | |
9376 | name[4] == 'L' && | |
9377 | name[5] == 'E' && | |
9378 | name[6] == '_' && | |
9379 | name[7] == '_') | |
9380 | { /* __FILE__ */ | |
9381 | return -KEY___FILE__; | |
9382 | } | |
9383 | ||
9384 | goto unknown; | |
9385 | ||
9386 | case 'L': | |
9387 | if (name[3] == 'I' && | |
9388 | name[4] == 'N' && | |
9389 | name[5] == 'E' && | |
9390 | name[6] == '_' && | |
9391 | name[7] == '_') | |
9392 | { /* __LINE__ */ | |
9393 | return -KEY___LINE__; | |
9394 | } | |
9395 | ||
9396 | goto unknown; | |
9397 | ||
9398 | default: | |
9399 | goto unknown; | |
9400 | } | |
9401 | } | |
9402 | ||
9403 | goto unknown; | |
9404 | ||
9405 | case 'c': | |
9406 | switch (name[1]) | |
9407 | { | |
9408 | case 'l': | |
9409 | if (name[2] == 'o' && | |
9410 | name[3] == 's' && | |
9411 | name[4] == 'e' && | |
9412 | name[5] == 'd' && | |
9413 | name[6] == 'i' && | |
9414 | name[7] == 'r') | |
9415 | { /* closedir */ | |
9416 | return -KEY_closedir; | |
9417 | } | |
9418 | ||
9419 | goto unknown; | |
9420 | ||
9421 | case 'o': | |
9422 | if (name[2] == 'n' && | |
9423 | name[3] == 't' && | |
9424 | name[4] == 'i' && | |
9425 | name[5] == 'n' && | |
9426 | name[6] == 'u' && | |
9427 | name[7] == 'e') | |
9428 | { /* continue */ | |
9429 | return -KEY_continue; | |
9430 | } | |
9431 | ||
9432 | goto unknown; | |
9433 | ||
9434 | default: | |
9435 | goto unknown; | |
9436 | } | |
9437 | ||
9438 | case 'd': | |
9439 | if (name[1] == 'b' && | |
9440 | name[2] == 'm' && | |
9441 | name[3] == 'c' && | |
9442 | name[4] == 'l' && | |
9443 | name[5] == 'o' && | |
9444 | name[6] == 's' && | |
9445 | name[7] == 'e') | |
9446 | { /* dbmclose */ | |
9447 | return -KEY_dbmclose; | |
9448 | } | |
9449 | ||
9450 | goto unknown; | |
9451 | ||
9452 | case 'e': | |
9453 | if (name[1] == 'n' && | |
9454 | name[2] == 'd') | |
9455 | { | |
9456 | switch (name[3]) | |
9457 | { | |
9458 | case 'g': | |
9459 | if (name[4] == 'r' && | |
9460 | name[5] == 'e' && | |
9461 | name[6] == 'n' && | |
9462 | name[7] == 't') | |
9463 | { /* endgrent */ | |
9464 | return -KEY_endgrent; | |
9465 | } | |
9466 | ||
9467 | goto unknown; | |
9468 | ||
9469 | case 'p': | |
9470 | if (name[4] == 'w' && | |
9471 | name[5] == 'e' && | |
9472 | name[6] == 'n' && | |
9473 | name[7] == 't') | |
9474 | { /* endpwent */ | |
9475 | return -KEY_endpwent; | |
9476 | } | |
9477 | ||
9478 | goto unknown; | |
9479 | ||
9480 | default: | |
9481 | goto unknown; | |
9482 | } | |
9483 | } | |
9484 | ||
9485 | goto unknown; | |
9486 | ||
9487 | case 'f': | |
9488 | if (name[1] == 'o' && | |
9489 | name[2] == 'r' && | |
9490 | name[3] == 'm' && | |
9491 | name[4] == 'l' && | |
9492 | name[5] == 'i' && | |
9493 | name[6] == 'n' && | |
9494 | name[7] == 'e') | |
9495 | { /* formline */ | |
9496 | return -KEY_formline; | |
9497 | } | |
9498 | ||
9499 | goto unknown; | |
9500 | ||
9501 | case 'g': | |
9502 | if (name[1] == 'e' && | |
9503 | name[2] == 't') | |
9504 | { | |
9505 | switch (name[3]) | |
9506 | { | |
9507 | case 'g': | |
9508 | if (name[4] == 'r') | |
9509 | { | |
9510 | switch (name[5]) | |
9511 | { | |
9512 | case 'e': | |
9513 | if (name[6] == 'n' && | |
9514 | name[7] == 't') | |
9515 | { /* getgrent */ | |
9516 | return -KEY_getgrent; | |
9517 | } | |
9518 | ||
9519 | goto unknown; | |
9520 | ||
9521 | case 'g': | |
9522 | if (name[6] == 'i' && | |
9523 | name[7] == 'd') | |
9524 | { /* getgrgid */ | |
9525 | return -KEY_getgrgid; | |
9526 | } | |
9527 | ||
9528 | goto unknown; | |
9529 | ||
9530 | case 'n': | |
9531 | if (name[6] == 'a' && | |
9532 | name[7] == 'm') | |
9533 | { /* getgrnam */ | |
9534 | return -KEY_getgrnam; | |
9535 | } | |
9536 | ||
9537 | goto unknown; | |
9538 | ||
9539 | default: | |
9540 | goto unknown; | |
9541 | } | |
9542 | } | |
9543 | ||
9544 | goto unknown; | |
9545 | ||
9546 | case 'l': | |
9547 | if (name[4] == 'o' && | |
9548 | name[5] == 'g' && | |
9549 | name[6] == 'i' && | |
9550 | name[7] == 'n') | |
9551 | { /* getlogin */ | |
9552 | return -KEY_getlogin; | |
9553 | } | |
9554 | ||
9555 | goto unknown; | |
9556 | ||
9557 | case 'p': | |
9558 | if (name[4] == 'w') | |
9559 | { | |
9560 | switch (name[5]) | |
9561 | { | |
9562 | case 'e': | |
9563 | if (name[6] == 'n' && | |
9564 | name[7] == 't') | |
9565 | { /* getpwent */ | |
9566 | return -KEY_getpwent; | |
9567 | } | |
9568 | ||
9569 | goto unknown; | |
9570 | ||
9571 | case 'n': | |
9572 | if (name[6] == 'a' && | |
9573 | name[7] == 'm') | |
9574 | { /* getpwnam */ | |
9575 | return -KEY_getpwnam; | |
9576 | } | |
9577 | ||
9578 | goto unknown; | |
9579 | ||
9580 | case 'u': | |
9581 | if (name[6] == 'i' && | |
9582 | name[7] == 'd') | |
9583 | { /* getpwuid */ | |
9584 | return -KEY_getpwuid; | |
9585 | } | |
9586 | ||
9587 | goto unknown; | |
9588 | ||
9589 | default: | |
9590 | goto unknown; | |
9591 | } | |
9592 | } | |
9593 | ||
9594 | goto unknown; | |
9595 | ||
9596 | default: | |
9597 | goto unknown; | |
9598 | } | |
9599 | } | |
9600 | ||
9601 | goto unknown; | |
9602 | ||
9603 | case 'r': | |
9604 | if (name[1] == 'e' && | |
9605 | name[2] == 'a' && | |
9606 | name[3] == 'd') | |
9607 | { | |
9608 | switch (name[4]) | |
9609 | { | |
9610 | case 'l': | |
9611 | if (name[5] == 'i' && | |
9612 | name[6] == 'n') | |
9613 | { | |
9614 | switch (name[7]) | |
9615 | { | |
9616 | case 'e': | |
9617 | { /* readline */ | |
9618 | return -KEY_readline; | |
9619 | } | |
9620 | ||
4c3bbe0f MHM |
9621 | case 'k': |
9622 | { /* readlink */ | |
9623 | return -KEY_readlink; | |
9624 | } | |
9625 | ||
4c3bbe0f MHM |
9626 | default: |
9627 | goto unknown; | |
9628 | } | |
9629 | } | |
9630 | ||
9631 | goto unknown; | |
9632 | ||
9633 | case 'p': | |
9634 | if (name[5] == 'i' && | |
9635 | name[6] == 'p' && | |
9636 | name[7] == 'e') | |
9637 | { /* readpipe */ | |
9638 | return -KEY_readpipe; | |
9639 | } | |
9640 | ||
9641 | goto unknown; | |
9642 | ||
9643 | default: | |
9644 | goto unknown; | |
9645 | } | |
9646 | } | |
9647 | ||
9648 | goto unknown; | |
9649 | ||
9650 | case 's': | |
9651 | switch (name[1]) | |
9652 | { | |
9653 | case 'e': | |
9654 | if (name[2] == 't') | |
9655 | { | |
9656 | switch (name[3]) | |
9657 | { | |
9658 | case 'g': | |
9659 | if (name[4] == 'r' && | |
9660 | name[5] == 'e' && | |
9661 | name[6] == 'n' && | |
9662 | name[7] == 't') | |
9663 | { /* setgrent */ | |
9664 | return -KEY_setgrent; | |
9665 | } | |
9666 | ||
9667 | goto unknown; | |
9668 | ||
9669 | case 'p': | |
9670 | if (name[4] == 'w' && | |
9671 | name[5] == 'e' && | |
9672 | name[6] == 'n' && | |
9673 | name[7] == 't') | |
9674 | { /* setpwent */ | |
9675 | return -KEY_setpwent; | |
9676 | } | |
9677 | ||
9678 | goto unknown; | |
9679 | ||
9680 | default: | |
9681 | goto unknown; | |
9682 | } | |
9683 | } | |
9684 | ||
9685 | goto unknown; | |
9686 | ||
9687 | case 'h': | |
9688 | switch (name[2]) | |
9689 | { | |
9690 | case 'm': | |
9691 | if (name[3] == 'w' && | |
9692 | name[4] == 'r' && | |
9693 | name[5] == 'i' && | |
9694 | name[6] == 't' && | |
9695 | name[7] == 'e') | |
9696 | { /* shmwrite */ | |
9697 | return -KEY_shmwrite; | |
9698 | } | |
9699 | ||
9700 | goto unknown; | |
9701 | ||
9702 | case 'u': | |
9703 | if (name[3] == 't' && | |
9704 | name[4] == 'd' && | |
9705 | name[5] == 'o' && | |
9706 | name[6] == 'w' && | |
9707 | name[7] == 'n') | |
9708 | { /* shutdown */ | |
9709 | return -KEY_shutdown; | |
9710 | } | |
9711 | ||
9712 | goto unknown; | |
9713 | ||
9714 | default: | |
9715 | goto unknown; | |
9716 | } | |
9717 | ||
9718 | case 'y': | |
9719 | if (name[2] == 's' && | |
9720 | name[3] == 'w' && | |
9721 | name[4] == 'r' && | |
9722 | name[5] == 'i' && | |
9723 | name[6] == 't' && | |
9724 | name[7] == 'e') | |
9725 | { /* syswrite */ | |
9726 | return -KEY_syswrite; | |
9727 | } | |
9728 | ||
9729 | goto unknown; | |
9730 | ||
9731 | default: | |
9732 | goto unknown; | |
9733 | } | |
9734 | ||
9735 | case 't': | |
9736 | if (name[1] == 'r' && | |
9737 | name[2] == 'u' && | |
9738 | name[3] == 'n' && | |
9739 | name[4] == 'c' && | |
9740 | name[5] == 'a' && | |
9741 | name[6] == 't' && | |
9742 | name[7] == 'e') | |
9743 | { /* truncate */ | |
9744 | return -KEY_truncate; | |
9745 | } | |
9746 | ||
9747 | goto unknown; | |
9748 | ||
9749 | default: | |
9750 | goto unknown; | |
9751 | } | |
9752 | ||
3c10abe3 | 9753 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9754 | switch (name[0]) |
9755 | { | |
3c10abe3 AG |
9756 | case 'U': |
9757 | if (name[1] == 'N' && | |
9758 | name[2] == 'I' && | |
9759 | name[3] == 'T' && | |
9760 | name[4] == 'C' && | |
9761 | name[5] == 'H' && | |
9762 | name[6] == 'E' && | |
9763 | name[7] == 'C' && | |
9764 | name[8] == 'K') | |
9765 | { /* UNITCHECK */ | |
9766 | return KEY_UNITCHECK; | |
9767 | } | |
9768 | ||
9769 | goto unknown; | |
9770 | ||
4c3bbe0f MHM |
9771 | case 'e': |
9772 | if (name[1] == 'n' && | |
9773 | name[2] == 'd' && | |
9774 | name[3] == 'n' && | |
9775 | name[4] == 'e' && | |
9776 | name[5] == 't' && | |
9777 | name[6] == 'e' && | |
9778 | name[7] == 'n' && | |
9779 | name[8] == 't') | |
9780 | { /* endnetent */ | |
9781 | return -KEY_endnetent; | |
9782 | } | |
9783 | ||
9784 | goto unknown; | |
9785 | ||
9786 | case 'g': | |
9787 | if (name[1] == 'e' && | |
9788 | name[2] == 't' && | |
9789 | name[3] == 'n' && | |
9790 | name[4] == 'e' && | |
9791 | name[5] == 't' && | |
9792 | name[6] == 'e' && | |
9793 | name[7] == 'n' && | |
9794 | name[8] == 't') | |
9795 | { /* getnetent */ | |
9796 | return -KEY_getnetent; | |
9797 | } | |
9798 | ||
9799 | goto unknown; | |
9800 | ||
9801 | case 'l': | |
9802 | if (name[1] == 'o' && | |
9803 | name[2] == 'c' && | |
9804 | name[3] == 'a' && | |
9805 | name[4] == 'l' && | |
9806 | name[5] == 't' && | |
9807 | name[6] == 'i' && | |
9808 | name[7] == 'm' && | |
9809 | name[8] == 'e') | |
9810 | { /* localtime */ | |
9811 | return -KEY_localtime; | |
9812 | } | |
9813 | ||
9814 | goto unknown; | |
9815 | ||
9816 | case 'p': | |
9817 | if (name[1] == 'r' && | |
9818 | name[2] == 'o' && | |
9819 | name[3] == 't' && | |
9820 | name[4] == 'o' && | |
9821 | name[5] == 't' && | |
9822 | name[6] == 'y' && | |
9823 | name[7] == 'p' && | |
9824 | name[8] == 'e') | |
9825 | { /* prototype */ | |
9826 | return KEY_prototype; | |
9827 | } | |
9828 | ||
9829 | goto unknown; | |
9830 | ||
9831 | case 'q': | |
9832 | if (name[1] == 'u' && | |
9833 | name[2] == 'o' && | |
9834 | name[3] == 't' && | |
9835 | name[4] == 'e' && | |
9836 | name[5] == 'm' && | |
9837 | name[6] == 'e' && | |
9838 | name[7] == 't' && | |
9839 | name[8] == 'a') | |
9840 | { /* quotemeta */ | |
9841 | return -KEY_quotemeta; | |
9842 | } | |
9843 | ||
9844 | goto unknown; | |
9845 | ||
9846 | case 'r': | |
9847 | if (name[1] == 'e' && | |
9848 | name[2] == 'w' && | |
9849 | name[3] == 'i' && | |
9850 | name[4] == 'n' && | |
9851 | name[5] == 'd' && | |
9852 | name[6] == 'd' && | |
9853 | name[7] == 'i' && | |
9854 | name[8] == 'r') | |
9855 | { /* rewinddir */ | |
9856 | return -KEY_rewinddir; | |
9857 | } | |
9858 | ||
9859 | goto unknown; | |
9860 | ||
9861 | case 's': | |
9862 | if (name[1] == 'e' && | |
9863 | name[2] == 't' && | |
9864 | name[3] == 'n' && | |
9865 | name[4] == 'e' && | |
9866 | name[5] == 't' && | |
9867 | name[6] == 'e' && | |
9868 | name[7] == 'n' && | |
9869 | name[8] == 't') | |
9870 | { /* setnetent */ | |
9871 | return -KEY_setnetent; | |
9872 | } | |
9873 | ||
9874 | goto unknown; | |
9875 | ||
9876 | case 'w': | |
9877 | if (name[1] == 'a' && | |
9878 | name[2] == 'n' && | |
9879 | name[3] == 't' && | |
9880 | name[4] == 'a' && | |
9881 | name[5] == 'r' && | |
9882 | name[6] == 'r' && | |
9883 | name[7] == 'a' && | |
9884 | name[8] == 'y') | |
9885 | { /* wantarray */ | |
9886 | return -KEY_wantarray; | |
9887 | } | |
9888 | ||
9889 | goto unknown; | |
9890 | ||
9891 | default: | |
9892 | goto unknown; | |
9893 | } | |
9894 | ||
9895 | case 10: /* 9 tokens of length 10 */ | |
9896 | switch (name[0]) | |
9897 | { | |
9898 | case 'e': | |
9899 | if (name[1] == 'n' && | |
9900 | name[2] == 'd') | |
9901 | { | |
9902 | switch (name[3]) | |
9903 | { | |
9904 | case 'h': | |
9905 | if (name[4] == 'o' && | |
9906 | name[5] == 's' && | |
9907 | name[6] == 't' && | |
9908 | name[7] == 'e' && | |
9909 | name[8] == 'n' && | |
9910 | name[9] == 't') | |
9911 | { /* endhostent */ | |
9912 | return -KEY_endhostent; | |
9913 | } | |
9914 | ||
9915 | goto unknown; | |
9916 | ||
9917 | case 's': | |
9918 | if (name[4] == 'e' && | |
9919 | name[5] == 'r' && | |
9920 | name[6] == 'v' && | |
9921 | name[7] == 'e' && | |
9922 | name[8] == 'n' && | |
9923 | name[9] == 't') | |
9924 | { /* endservent */ | |
9925 | return -KEY_endservent; | |
9926 | } | |
9927 | ||
9928 | goto unknown; | |
9929 | ||
9930 | default: | |
9931 | goto unknown; | |
9932 | } | |
9933 | } | |
9934 | ||
9935 | goto unknown; | |
9936 | ||
9937 | case 'g': | |
9938 | if (name[1] == 'e' && | |
9939 | name[2] == 't') | |
9940 | { | |
9941 | switch (name[3]) | |
9942 | { | |
9943 | case 'h': | |
9944 | if (name[4] == 'o' && | |
9945 | name[5] == 's' && | |
9946 | name[6] == 't' && | |
9947 | name[7] == 'e' && | |
9948 | name[8] == 'n' && | |
9949 | name[9] == 't') | |
9950 | { /* gethostent */ | |
9951 | return -KEY_gethostent; | |
9952 | } | |
9953 | ||
9954 | goto unknown; | |
9955 | ||
9956 | case 's': | |
9957 | switch (name[4]) | |
9958 | { | |
9959 | case 'e': | |
9960 | if (name[5] == 'r' && | |
9961 | name[6] == 'v' && | |
9962 | name[7] == 'e' && | |
9963 | name[8] == 'n' && | |
9964 | name[9] == 't') | |
9965 | { /* getservent */ | |
9966 | return -KEY_getservent; | |
9967 | } | |
9968 | ||
9969 | goto unknown; | |
9970 | ||
9971 | case 'o': | |
9972 | if (name[5] == 'c' && | |
9973 | name[6] == 'k' && | |
9974 | name[7] == 'o' && | |
9975 | name[8] == 'p' && | |
9976 | name[9] == 't') | |
9977 | { /* getsockopt */ | |
9978 | return -KEY_getsockopt; | |
9979 | } | |
9980 | ||
9981 | goto unknown; | |
9982 | ||
9983 | default: | |
9984 | goto unknown; | |
9985 | } | |
9986 | ||
9987 | default: | |
9988 | goto unknown; | |
9989 | } | |
9990 | } | |
9991 | ||
9992 | goto unknown; | |
9993 | ||
9994 | case 's': | |
9995 | switch (name[1]) | |
9996 | { | |
9997 | case 'e': | |
9998 | if (name[2] == 't') | |
9999 | { | |
10000 | switch (name[3]) | |
10001 | { | |
10002 | case 'h': | |
10003 | if (name[4] == 'o' && | |
10004 | name[5] == 's' && | |
10005 | name[6] == 't' && | |
10006 | name[7] == 'e' && | |
10007 | name[8] == 'n' && | |
10008 | name[9] == 't') | |
10009 | { /* sethostent */ | |
10010 | return -KEY_sethostent; | |
10011 | } | |
10012 | ||
10013 | goto unknown; | |
10014 | ||
10015 | case 's': | |
10016 | switch (name[4]) | |
10017 | { | |
10018 | case 'e': | |
10019 | if (name[5] == 'r' && | |
10020 | name[6] == 'v' && | |
10021 | name[7] == 'e' && | |
10022 | name[8] == 'n' && | |
10023 | name[9] == 't') | |
10024 | { /* setservent */ | |
10025 | return -KEY_setservent; | |
10026 | } | |
10027 | ||
10028 | goto unknown; | |
10029 | ||
10030 | case 'o': | |
10031 | if (name[5] == 'c' && | |
10032 | name[6] == 'k' && | |
10033 | name[7] == 'o' && | |
10034 | name[8] == 'p' && | |
10035 | name[9] == 't') | |
10036 | { /* setsockopt */ | |
10037 | return -KEY_setsockopt; | |
10038 | } | |
10039 | ||
10040 | goto unknown; | |
10041 | ||
10042 | default: | |
10043 | goto unknown; | |
10044 | } | |
10045 | ||
10046 | default: | |
10047 | goto unknown; | |
10048 | } | |
10049 | } | |
10050 | ||
10051 | goto unknown; | |
10052 | ||
10053 | case 'o': | |
10054 | if (name[2] == 'c' && | |
10055 | name[3] == 'k' && | |
10056 | name[4] == 'e' && | |
10057 | name[5] == 't' && | |
10058 | name[6] == 'p' && | |
10059 | name[7] == 'a' && | |
10060 | name[8] == 'i' && | |
10061 | name[9] == 'r') | |
10062 | { /* socketpair */ | |
10063 | return -KEY_socketpair; | |
10064 | } | |
10065 | ||
10066 | goto unknown; | |
10067 | ||
10068 | default: | |
10069 | goto unknown; | |
10070 | } | |
10071 | ||
10072 | default: | |
10073 | goto unknown; | |
e2e1dd5a | 10074 | } |
4c3bbe0f MHM |
10075 | |
10076 | case 11: /* 8 tokens of length 11 */ | |
10077 | switch (name[0]) | |
10078 | { | |
10079 | case '_': | |
10080 | if (name[1] == '_' && | |
10081 | name[2] == 'P' && | |
10082 | name[3] == 'A' && | |
10083 | name[4] == 'C' && | |
10084 | name[5] == 'K' && | |
10085 | name[6] == 'A' && | |
10086 | name[7] == 'G' && | |
10087 | name[8] == 'E' && | |
10088 | name[9] == '_' && | |
10089 | name[10] == '_') | |
10090 | { /* __PACKAGE__ */ | |
10091 | return -KEY___PACKAGE__; | |
10092 | } | |
10093 | ||
10094 | goto unknown; | |
10095 | ||
10096 | case 'e': | |
10097 | if (name[1] == 'n' && | |
10098 | name[2] == 'd' && | |
10099 | name[3] == 'p' && | |
10100 | name[4] == 'r' && | |
10101 | name[5] == 'o' && | |
10102 | name[6] == 't' && | |
10103 | name[7] == 'o' && | |
10104 | name[8] == 'e' && | |
10105 | name[9] == 'n' && | |
10106 | name[10] == 't') | |
10107 | { /* endprotoent */ | |
10108 | return -KEY_endprotoent; | |
10109 | } | |
10110 | ||
10111 | goto unknown; | |
10112 | ||
10113 | case 'g': | |
10114 | if (name[1] == 'e' && | |
10115 | name[2] == 't') | |
10116 | { | |
10117 | switch (name[3]) | |
10118 | { | |
10119 | case 'p': | |
10120 | switch (name[4]) | |
10121 | { | |
10122 | case 'e': | |
10123 | if (name[5] == 'e' && | |
10124 | name[6] == 'r' && | |
10125 | name[7] == 'n' && | |
10126 | name[8] == 'a' && | |
10127 | name[9] == 'm' && | |
10128 | name[10] == 'e') | |
10129 | { /* getpeername */ | |
10130 | return -KEY_getpeername; | |
10131 | } | |
10132 | ||
10133 | goto unknown; | |
10134 | ||
10135 | case 'r': | |
10136 | switch (name[5]) | |
10137 | { | |
10138 | case 'i': | |
10139 | if (name[6] == 'o' && | |
10140 | name[7] == 'r' && | |
10141 | name[8] == 'i' && | |
10142 | name[9] == 't' && | |
10143 | name[10] == 'y') | |
10144 | { /* getpriority */ | |
10145 | return -KEY_getpriority; | |
10146 | } | |
10147 | ||
10148 | goto unknown; | |
10149 | ||
10150 | case 'o': | |
10151 | if (name[6] == 't' && | |
10152 | name[7] == 'o' && | |
10153 | name[8] == 'e' && | |
10154 | name[9] == 'n' && | |
10155 | name[10] == 't') | |
10156 | { /* getprotoent */ | |
10157 | return -KEY_getprotoent; | |
10158 | } | |
10159 | ||
10160 | goto unknown; | |
10161 | ||
10162 | default: | |
10163 | goto unknown; | |
10164 | } | |
10165 | ||
10166 | default: | |
10167 | goto unknown; | |
10168 | } | |
10169 | ||
10170 | case 's': | |
10171 | if (name[4] == 'o' && | |
10172 | name[5] == 'c' && | |
10173 | name[6] == 'k' && | |
10174 | name[7] == 'n' && | |
10175 | name[8] == 'a' && | |
10176 | name[9] == 'm' && | |
10177 | name[10] == 'e') | |
10178 | { /* getsockname */ | |
10179 | return -KEY_getsockname; | |
10180 | } | |
10181 | ||
10182 | goto unknown; | |
10183 | ||
10184 | default: | |
10185 | goto unknown; | |
10186 | } | |
10187 | } | |
10188 | ||
10189 | goto unknown; | |
10190 | ||
10191 | case 's': | |
10192 | if (name[1] == 'e' && | |
10193 | name[2] == 't' && | |
10194 | name[3] == 'p' && | |
10195 | name[4] == 'r') | |
10196 | { | |
10197 | switch (name[5]) | |
10198 | { | |
10199 | case 'i': | |
10200 | if (name[6] == 'o' && | |
10201 | name[7] == 'r' && | |
10202 | name[8] == 'i' && | |
10203 | name[9] == 't' && | |
10204 | name[10] == 'y') | |
10205 | { /* setpriority */ | |
10206 | return -KEY_setpriority; | |
10207 | } | |
10208 | ||
10209 | goto unknown; | |
10210 | ||
10211 | case 'o': | |
10212 | if (name[6] == 't' && | |
10213 | name[7] == 'o' && | |
10214 | name[8] == 'e' && | |
10215 | name[9] == 'n' && | |
10216 | name[10] == 't') | |
10217 | { /* setprotoent */ | |
10218 | return -KEY_setprotoent; | |
10219 | } | |
10220 | ||
10221 | goto unknown; | |
10222 | ||
10223 | default: | |
10224 | goto unknown; | |
10225 | } | |
10226 | } | |
10227 | ||
10228 | goto unknown; | |
10229 | ||
10230 | default: | |
10231 | goto unknown; | |
e2e1dd5a | 10232 | } |
4c3bbe0f MHM |
10233 | |
10234 | case 12: /* 2 tokens of length 12 */ | |
10235 | if (name[0] == 'g' && | |
10236 | name[1] == 'e' && | |
10237 | name[2] == 't' && | |
10238 | name[3] == 'n' && | |
10239 | name[4] == 'e' && | |
10240 | name[5] == 't' && | |
10241 | name[6] == 'b' && | |
10242 | name[7] == 'y') | |
10243 | { | |
10244 | switch (name[8]) | |
10245 | { | |
10246 | case 'a': | |
10247 | if (name[9] == 'd' && | |
10248 | name[10] == 'd' && | |
10249 | name[11] == 'r') | |
10250 | { /* getnetbyaddr */ | |
10251 | return -KEY_getnetbyaddr; | |
10252 | } | |
10253 | ||
10254 | goto unknown; | |
10255 | ||
10256 | case 'n': | |
10257 | if (name[9] == 'a' && | |
10258 | name[10] == 'm' && | |
10259 | name[11] == 'e') | |
10260 | { /* getnetbyname */ | |
10261 | return -KEY_getnetbyname; | |
10262 | } | |
10263 | ||
10264 | goto unknown; | |
10265 | ||
10266 | default: | |
10267 | goto unknown; | |
10268 | } | |
e2e1dd5a | 10269 | } |
4c3bbe0f MHM |
10270 | |
10271 | goto unknown; | |
10272 | ||
10273 | case 13: /* 4 tokens of length 13 */ | |
10274 | if (name[0] == 'g' && | |
10275 | name[1] == 'e' && | |
10276 | name[2] == 't') | |
10277 | { | |
10278 | switch (name[3]) | |
10279 | { | |
10280 | case 'h': | |
10281 | if (name[4] == 'o' && | |
10282 | name[5] == 's' && | |
10283 | name[6] == 't' && | |
10284 | name[7] == 'b' && | |
10285 | name[8] == 'y') | |
10286 | { | |
10287 | switch (name[9]) | |
10288 | { | |
10289 | case 'a': | |
10290 | if (name[10] == 'd' && | |
10291 | name[11] == 'd' && | |
10292 | name[12] == 'r') | |
10293 | { /* gethostbyaddr */ | |
10294 | return -KEY_gethostbyaddr; | |
10295 | } | |
10296 | ||
10297 | goto unknown; | |
10298 | ||
10299 | case 'n': | |
10300 | if (name[10] == 'a' && | |
10301 | name[11] == 'm' && | |
10302 | name[12] == 'e') | |
10303 | { /* gethostbyname */ | |
10304 | return -KEY_gethostbyname; | |
10305 | } | |
10306 | ||
10307 | goto unknown; | |
10308 | ||
10309 | default: | |
10310 | goto unknown; | |
10311 | } | |
10312 | } | |
10313 | ||
10314 | goto unknown; | |
10315 | ||
10316 | case 's': | |
10317 | if (name[4] == 'e' && | |
10318 | name[5] == 'r' && | |
10319 | name[6] == 'v' && | |
10320 | name[7] == 'b' && | |
10321 | name[8] == 'y') | |
10322 | { | |
10323 | switch (name[9]) | |
10324 | { | |
10325 | case 'n': | |
10326 | if (name[10] == 'a' && | |
10327 | name[11] == 'm' && | |
10328 | name[12] == 'e') | |
10329 | { /* getservbyname */ | |
10330 | return -KEY_getservbyname; | |
10331 | } | |
10332 | ||
10333 | goto unknown; | |
10334 | ||
10335 | case 'p': | |
10336 | if (name[10] == 'o' && | |
10337 | name[11] == 'r' && | |
10338 | name[12] == 't') | |
10339 | { /* getservbyport */ | |
10340 | return -KEY_getservbyport; | |
10341 | } | |
10342 | ||
10343 | goto unknown; | |
10344 | ||
10345 | default: | |
10346 | goto unknown; | |
10347 | } | |
10348 | } | |
10349 | ||
10350 | goto unknown; | |
10351 | ||
10352 | default: | |
10353 | goto unknown; | |
10354 | } | |
e2e1dd5a | 10355 | } |
4c3bbe0f MHM |
10356 | |
10357 | goto unknown; | |
10358 | ||
10359 | case 14: /* 1 tokens of length 14 */ | |
10360 | if (name[0] == 'g' && | |
10361 | name[1] == 'e' && | |
10362 | name[2] == 't' && | |
10363 | name[3] == 'p' && | |
10364 | name[4] == 'r' && | |
10365 | name[5] == 'o' && | |
10366 | name[6] == 't' && | |
10367 | name[7] == 'o' && | |
10368 | name[8] == 'b' && | |
10369 | name[9] == 'y' && | |
10370 | name[10] == 'n' && | |
10371 | name[11] == 'a' && | |
10372 | name[12] == 'm' && | |
10373 | name[13] == 'e') | |
10374 | { /* getprotobyname */ | |
10375 | return -KEY_getprotobyname; | |
10376 | } | |
10377 | ||
10378 | goto unknown; | |
10379 | ||
10380 | case 16: /* 1 tokens of length 16 */ | |
10381 | if (name[0] == 'g' && | |
10382 | name[1] == 'e' && | |
10383 | name[2] == 't' && | |
10384 | name[3] == 'p' && | |
10385 | name[4] == 'r' && | |
10386 | name[5] == 'o' && | |
10387 | name[6] == 't' && | |
10388 | name[7] == 'o' && | |
10389 | name[8] == 'b' && | |
10390 | name[9] == 'y' && | |
10391 | name[10] == 'n' && | |
10392 | name[11] == 'u' && | |
10393 | name[12] == 'm' && | |
10394 | name[13] == 'b' && | |
10395 | name[14] == 'e' && | |
10396 | name[15] == 'r') | |
10397 | { /* getprotobynumber */ | |
10398 | return -KEY_getprotobynumber; | |
10399 | } | |
10400 | ||
10401 | goto unknown; | |
10402 | ||
10403 | default: | |
10404 | goto unknown; | |
e2e1dd5a | 10405 | } |
4c3bbe0f MHM |
10406 | |
10407 | unknown: | |
e2e1dd5a | 10408 | return 0; |
a687059c LW |
10409 | } |
10410 | ||
76e3520e | 10411 | STATIC void |
c94115d8 | 10412 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10413 | { |
97aff369 | 10414 | dVAR; |
2f3197b3 | 10415 | |
d008e5eb | 10416 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10417 | if (ckWARN(WARN_SYNTAX)) { |
10418 | int level = 1; | |
26ff0806 | 10419 | const char *w; |
d008e5eb GS |
10420 | for (w = s+2; *w && level; w++) { |
10421 | if (*w == '(') | |
10422 | ++level; | |
10423 | else if (*w == ')') | |
10424 | --level; | |
10425 | } | |
888fea98 NC |
10426 | while (isSPACE(*w)) |
10427 | ++w; | |
d008e5eb | 10428 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 10429 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10430 | "%s (...) interpreted as function",name); |
d008e5eb | 10431 | } |
2f3197b3 | 10432 | } |
3280af22 | 10433 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10434 | s++; |
a687059c LW |
10435 | if (*s == '(') |
10436 | s++; | |
3280af22 | 10437 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10438 | s++; |
7e2040f0 | 10439 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10440 | const char * const w = s++; |
7e2040f0 | 10441 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10442 | s++; |
3280af22 | 10443 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10444 | s++; |
e929a76b | 10445 | if (*s == ',') { |
c94115d8 | 10446 | GV* gv; |
5458a98a | 10447 | if (keyword(w, s - w, 0)) |
e929a76b | 10448 | return; |
c94115d8 NC |
10449 | |
10450 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10451 | if (gv && GvCVu(gv)) | |
abbb3198 | 10452 | return; |
cea2e8a9 | 10453 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10454 | } |
10455 | } | |
10456 | } | |
10457 | ||
423cee85 JH |
10458 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10459 | Best used as sv=new_constant(..., sv, ...). | |
10460 | If s, pv are NULL, calls subroutine with one argument, | |
10461 | and type is used with error messages only. */ | |
10462 | ||
b3ac6de7 | 10463 | STATIC SV * |
7fc63493 | 10464 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10465 | const char *type) |
b3ac6de7 | 10466 | { |
27da23d5 | 10467 | dVAR; dSP; |
890ce7af | 10468 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10469 | SV *res; |
b3ac6de7 IZ |
10470 | SV **cvp; |
10471 | SV *cv, *typesv; | |
89e33a05 | 10472 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10473 | |
f0af216f | 10474 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10475 | SV *msg; |
10476 | ||
10edeb5d JH |
10477 | why2 = (const char *) |
10478 | (strEQ(key,"charnames") | |
10479 | ? "(possibly a missing \"use charnames ...\")" | |
10480 | : ""); | |
4e553d73 | 10481 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10482 | (type ? type: "undef"), why2); |
10483 | ||
10484 | /* This is convoluted and evil ("goto considered harmful") | |
10485 | * but I do not understand the intricacies of all the different | |
10486 | * failure modes of %^H in here. The goal here is to make | |
10487 | * the most probable error message user-friendly. --jhi */ | |
10488 | ||
10489 | goto msgdone; | |
10490 | ||
423cee85 | 10491 | report: |
4e553d73 | 10492 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10493 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10494 | msgdone: |
95a20fc0 | 10495 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10496 | SvREFCNT_dec(msg); |
10497 | return sv; | |
10498 | } | |
b3ac6de7 IZ |
10499 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10500 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10501 | why1 = "$^H{"; |
10502 | why2 = key; | |
f0af216f | 10503 | why3 = "} is not defined"; |
423cee85 | 10504 | goto report; |
b3ac6de7 IZ |
10505 | } |
10506 | sv_2mortal(sv); /* Parent created it permanently */ | |
10507 | cv = *cvp; | |
423cee85 JH |
10508 | if (!pv && s) |
10509 | pv = sv_2mortal(newSVpvn(s, len)); | |
10510 | if (type && pv) | |
10511 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10512 | else |
423cee85 | 10513 | typesv = &PL_sv_undef; |
4e553d73 | 10514 | |
e788e7d3 | 10515 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10516 | ENTER ; |
10517 | SAVETMPS; | |
4e553d73 | 10518 | |
423cee85 | 10519 | PUSHMARK(SP) ; |
a5845cb7 | 10520 | EXTEND(sp, 3); |
423cee85 JH |
10521 | if (pv) |
10522 | PUSHs(pv); | |
b3ac6de7 | 10523 | PUSHs(sv); |
423cee85 JH |
10524 | if (pv) |
10525 | PUSHs(typesv); | |
b3ac6de7 | 10526 | PUTBACK; |
423cee85 | 10527 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10528 | |
423cee85 | 10529 | SPAGAIN ; |
4e553d73 | 10530 | |
423cee85 | 10531 | /* Check the eval first */ |
9b0e499b | 10532 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10533 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10534 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10535 | (void)POPs; |
b37c2d43 | 10536 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10537 | } |
10538 | else { | |
10539 | res = POPs; | |
b37c2d43 | 10540 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10541 | } |
4e553d73 | 10542 | |
423cee85 JH |
10543 | PUTBACK ; |
10544 | FREETMPS ; | |
10545 | LEAVE ; | |
b3ac6de7 | 10546 | POPSTACK; |
4e553d73 | 10547 | |
b3ac6de7 | 10548 | if (!SvOK(res)) { |
423cee85 JH |
10549 | why1 = "Call to &{$^H{"; |
10550 | why2 = key; | |
f0af216f | 10551 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10552 | sv = res; |
10553 | goto report; | |
9b0e499b | 10554 | } |
423cee85 | 10555 | |
9b0e499b | 10556 | return res; |
b3ac6de7 | 10557 | } |
4e553d73 | 10558 | |
d0a148a6 NC |
10559 | /* Returns a NUL terminated string, with the length of the string written to |
10560 | *slp | |
10561 | */ | |
76e3520e | 10562 | STATIC char * |
cea2e8a9 | 10563 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10564 | { |
97aff369 | 10565 | dVAR; |
463ee0b2 | 10566 | register char *d = dest; |
890ce7af | 10567 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10568 | for (;;) { |
8903cb82 | 10569 | if (d >= e) |
cea2e8a9 | 10570 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10571 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10572 | *d++ = *s++; |
c35e046a | 10573 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10574 | *d++ = ':'; |
10575 | *d++ = ':'; | |
10576 | s++; | |
10577 | } | |
c35e046a | 10578 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10579 | *d++ = *s++; |
10580 | *d++ = *s++; | |
10581 | } | |
fd400ab9 | 10582 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10583 | char *t = s + UTF8SKIP(s); |
c35e046a | 10584 | size_t len; |
fd400ab9 | 10585 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10586 | t += UTF8SKIP(t); |
c35e046a AL |
10587 | len = t - s; |
10588 | if (d + len > e) | |
cea2e8a9 | 10589 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10590 | Copy(s, d, len, char); |
10591 | d += len; | |
a0ed51b3 LW |
10592 | s = t; |
10593 | } | |
463ee0b2 LW |
10594 | else { |
10595 | *d = '\0'; | |
10596 | *slp = d - dest; | |
10597 | return s; | |
e929a76b | 10598 | } |
378cc40b LW |
10599 | } |
10600 | } | |
10601 | ||
76e3520e | 10602 | STATIC char * |
f54cb97a | 10603 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10604 | { |
97aff369 | 10605 | dVAR; |
6136c704 | 10606 | char *bracket = NULL; |
748a9306 | 10607 | char funny = *s++; |
6136c704 AL |
10608 | register char *d = dest; |
10609 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10610 | |
a0d0e21e | 10611 | if (isSPACE(*s)) |
29595ff2 | 10612 | s = PEEKSPACE(s); |
de3bb511 | 10613 | if (isDIGIT(*s)) { |
8903cb82 | 10614 | while (isDIGIT(*s)) { |
10615 | if (d >= e) | |
cea2e8a9 | 10616 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10617 | *d++ = *s++; |
8903cb82 | 10618 | } |
378cc40b LW |
10619 | } |
10620 | else { | |
463ee0b2 | 10621 | for (;;) { |
8903cb82 | 10622 | if (d >= e) |
cea2e8a9 | 10623 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10624 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10625 | *d++ = *s++; |
7e2040f0 | 10626 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10627 | *d++ = ':'; |
10628 | *d++ = ':'; | |
10629 | s++; | |
10630 | } | |
a0d0e21e | 10631 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10632 | *d++ = *s++; |
10633 | *d++ = *s++; | |
10634 | } | |
fd400ab9 | 10635 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10636 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10637 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10638 | t += UTF8SKIP(t); |
10639 | if (d + (t - s) > e) | |
cea2e8a9 | 10640 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10641 | Copy(s, d, t - s, char); |
10642 | d += t - s; | |
10643 | s = t; | |
10644 | } | |
463ee0b2 LW |
10645 | else |
10646 | break; | |
10647 | } | |
378cc40b LW |
10648 | } |
10649 | *d = '\0'; | |
10650 | d = dest; | |
79072805 | 10651 | if (*d) { |
3280af22 NIS |
10652 | if (PL_lex_state != LEX_NORMAL) |
10653 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10654 | return s; |
378cc40b | 10655 | } |
748a9306 | 10656 | if (*s == '$' && s[1] && |
3792a11b | 10657 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10658 | { |
4810e5ec | 10659 | return s; |
5cd24f17 | 10660 | } |
79072805 LW |
10661 | if (*s == '{') { |
10662 | bracket = s; | |
10663 | s++; | |
10664 | } | |
10665 | else if (ck_uni) | |
10666 | check_uni(); | |
93a17b20 | 10667 | if (s < send) |
79072805 LW |
10668 | *d = *s++; |
10669 | d[1] = '\0'; | |
2b92dfce | 10670 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10671 | *d = toCTRL(*s); |
10672 | s++; | |
de3bb511 | 10673 | } |
79072805 | 10674 | if (bracket) { |
748a9306 | 10675 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10676 | while (s < send) { |
f54cb97a | 10677 | const char ch = *s++; |
bf4acbe4 | 10678 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10679 | *d = ch; |
10680 | break; | |
10681 | } | |
10682 | } | |
748a9306 | 10683 | } |
7e2040f0 | 10684 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10685 | d++; |
a0ed51b3 | 10686 | if (UTF) { |
6136c704 AL |
10687 | char *end = s; |
10688 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10689 | end += UTF8SKIP(end); | |
10690 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10691 | end += UTF8SKIP(end); | |
a0ed51b3 | 10692 | } |
6136c704 AL |
10693 | Copy(s, d, end - s, char); |
10694 | d += end - s; | |
10695 | s = end; | |
a0ed51b3 LW |
10696 | } |
10697 | else { | |
2b92dfce | 10698 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10699 | *d++ = *s++; |
2b92dfce | 10700 | if (d >= e) |
cea2e8a9 | 10701 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10702 | } |
79072805 | 10703 | *d = '\0'; |
c35e046a AL |
10704 | while (s < send && SPACE_OR_TAB(*s)) |
10705 | s++; | |
ff68c719 | 10706 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10707 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10708 | const char * const brack = |
10709 | (const char *) | |
10710 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10711 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10712 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10713 | funny, dest, brack, funny, dest, brack); |
10714 | } | |
79072805 | 10715 | bracket++; |
a0be28da | 10716 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10717 | return s; |
10718 | } | |
4e553d73 NIS |
10719 | } |
10720 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10721 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10722 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10723 | && isALNUM(*s)) | |
10724 | { | |
10725 | d++; | |
10726 | while (isALNUM(*s) && d < e) { | |
10727 | *d++ = *s++; | |
10728 | } | |
10729 | if (d >= e) | |
cea2e8a9 | 10730 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10731 | *d = '\0'; |
79072805 LW |
10732 | } |
10733 | if (*s == '}') { | |
10734 | s++; | |
7df0d042 | 10735 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10736 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10737 | PL_expect = XREF; |
10738 | } | |
d008e5eb | 10739 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10740 | if (ckWARN(WARN_AMBIGUOUS) && |
5458a98a | 10741 | (keyword(dest, d - dest, 0) || get_cv(dest, FALSE))) |
d008e5eb | 10742 | { |
c35e046a AL |
10743 | if (funny == '#') |
10744 | funny = '@'; | |
9014280d | 10745 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10746 | "Ambiguous use of %c{%s} resolved to %c%s", |
10747 | funny, dest, funny, dest); | |
10748 | } | |
10749 | } | |
79072805 LW |
10750 | } |
10751 | else { | |
10752 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10753 | *dest = '\0'; |
79072805 LW |
10754 | } |
10755 | } | |
3280af22 NIS |
10756 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10757 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10758 | return s; |
10759 | } | |
10760 | ||
cea2e8a9 | 10761 | void |
2b36a5a0 | 10762 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10763 | { |
96a5add6 | 10764 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 10765 | if (ch == 'i') |
a0d0e21e | 10766 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
10767 | else if (ch == 'g') |
10768 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 10769 | else if (ch == 'c') |
10770 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
10771 | else if (ch == 'o') |
10772 | *pmfl |= PMf_KEEP; | |
10773 | else if (ch == 'm') | |
10774 | *pmfl |= PMf_MULTILINE; | |
10775 | else if (ch == 's') | |
10776 | *pmfl |= PMf_SINGLELINE; | |
10777 | else if (ch == 'x') | |
10778 | *pmfl |= PMf_EXTENDED; | |
10779 | } | |
378cc40b | 10780 | |
76e3520e | 10781 | STATIC char * |
cea2e8a9 | 10782 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10783 | { |
97aff369 | 10784 | dVAR; |
79072805 | 10785 | PMOP *pm; |
5db06880 | 10786 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d JH |
10787 | const char * const valid_flags = |
10788 | (const char *)((type == OP_QR) ? "iomsx" : "iogcmsx"); | |
5db06880 NC |
10789 | #ifdef PERL_MAD |
10790 | char *modstart; | |
10791 | #endif | |
10792 | ||
378cc40b | 10793 | |
25c09cbf | 10794 | if (!s) { |
6136c704 | 10795 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10796 | Perl_croak(aTHX_ |
10797 | (const char *) | |
10798 | (*delimiter == '?' | |
10799 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10800 | : "Search pattern not terminated" )); | |
25c09cbf | 10801 | } |
bbce6d69 | 10802 | |
8782bef2 | 10803 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 10804 | if (PL_multi_open == '?') |
79072805 | 10805 | pm->op_pmflags |= PMf_ONCE; |
5db06880 NC |
10806 | #ifdef PERL_MAD |
10807 | modstart = s; | |
10808 | #endif | |
6136c704 AL |
10809 | while (*s && strchr(valid_flags, *s)) |
10810 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10811 | #ifdef PERL_MAD |
10812 | if (PL_madskills && modstart != s) { | |
10813 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10814 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10815 | } | |
10816 | #endif | |
4ac733c9 | 10817 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10818 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10819 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10820 | { |
0bd48802 | 10821 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
10822 | } |
10823 | ||
4633a7c4 | 10824 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 10825 | |
3280af22 | 10826 | PL_lex_op = (OP*)pm; |
79072805 | 10827 | yylval.ival = OP_MATCH; |
378cc40b LW |
10828 | return s; |
10829 | } | |
10830 | ||
76e3520e | 10831 | STATIC char * |
cea2e8a9 | 10832 | S_scan_subst(pTHX_ char *start) |
79072805 | 10833 | { |
27da23d5 | 10834 | dVAR; |
a0d0e21e | 10835 | register char *s; |
79072805 | 10836 | register PMOP *pm; |
4fdae800 | 10837 | I32 first_start; |
79072805 | 10838 | I32 es = 0; |
5db06880 NC |
10839 | #ifdef PERL_MAD |
10840 | char *modstart; | |
10841 | #endif | |
79072805 | 10842 | |
79072805 LW |
10843 | yylval.ival = OP_NULL; |
10844 | ||
5db06880 | 10845 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10846 | |
37fd879b | 10847 | if (!s) |
cea2e8a9 | 10848 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10849 | |
3280af22 | 10850 | if (s[-1] == PL_multi_open) |
79072805 | 10851 | s--; |
5db06880 NC |
10852 | #ifdef PERL_MAD |
10853 | if (PL_madskills) { | |
cd81e915 NC |
10854 | CURMAD('q', PL_thisopen); |
10855 | CURMAD('_', PL_thiswhite); | |
10856 | CURMAD('E', PL_thisstuff); | |
10857 | CURMAD('Q', PL_thisclose); | |
10858 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10859 | } |
10860 | #endif | |
79072805 | 10861 | |
3280af22 | 10862 | first_start = PL_multi_start; |
5db06880 | 10863 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10864 | if (!s) { |
37fd879b | 10865 | if (PL_lex_stuff) { |
3280af22 | 10866 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10867 | PL_lex_stuff = NULL; |
37fd879b | 10868 | } |
cea2e8a9 | 10869 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10870 | } |
3280af22 | 10871 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10872 | |
79072805 | 10873 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10874 | |
10875 | #ifdef PERL_MAD | |
10876 | if (PL_madskills) { | |
cd81e915 NC |
10877 | CURMAD('z', PL_thisopen); |
10878 | CURMAD('R', PL_thisstuff); | |
10879 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10880 | } |
10881 | modstart = s; | |
10882 | #endif | |
10883 | ||
48c036b1 | 10884 | while (*s) { |
a687059c LW |
10885 | if (*s == 'e') { |
10886 | s++; | |
2f3197b3 | 10887 | es++; |
a687059c | 10888 | } |
b3eb6a9b | 10889 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 10890 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10891 | else |
10892 | break; | |
378cc40b | 10893 | } |
79072805 | 10894 | |
5db06880 NC |
10895 | #ifdef PERL_MAD |
10896 | if (PL_madskills) { | |
10897 | if (modstart != s) | |
10898 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10899 | append_madprops(PL_thismad, (OP*)pm, 0); |
10900 | PL_thismad = 0; | |
5db06880 NC |
10901 | } |
10902 | #endif | |
0bd48802 AL |
10903 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10904 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10905 | } |
10906 | ||
79072805 | 10907 | if (es) { |
6136c704 AL |
10908 | SV * const repl = newSVpvs(""); |
10909 | ||
0244c3a4 GS |
10910 | PL_sublex_info.super_bufptr = s; |
10911 | PL_sublex_info.super_bufend = PL_bufend; | |
10912 | PL_multi_end = 0; | |
79072805 | 10913 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10914 | while (es-- > 0) |
10edeb5d | 10915 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
6f43d98f | 10916 | sv_catpvs(repl, "{"); |
3280af22 | 10917 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10918 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10919 | sv_catpvs(repl, "\n"); | |
10920 | sv_catpvs(repl, "}"); | |
25da4f38 | 10921 | SvEVALED_on(repl); |
3280af22 NIS |
10922 | SvREFCNT_dec(PL_lex_repl); |
10923 | PL_lex_repl = repl; | |
378cc40b | 10924 | } |
79072805 | 10925 | |
4633a7c4 | 10926 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 10927 | PL_lex_op = (OP*)pm; |
79072805 | 10928 | yylval.ival = OP_SUBST; |
378cc40b LW |
10929 | return s; |
10930 | } | |
10931 | ||
76e3520e | 10932 | STATIC char * |
cea2e8a9 | 10933 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10934 | { |
97aff369 | 10935 | dVAR; |
a0d0e21e | 10936 | register char* s; |
11343788 | 10937 | OP *o; |
79072805 LW |
10938 | short *tbl; |
10939 | I32 squash; | |
a0ed51b3 | 10940 | I32 del; |
79072805 | 10941 | I32 complement; |
5db06880 NC |
10942 | #ifdef PERL_MAD |
10943 | char *modstart; | |
10944 | #endif | |
79072805 LW |
10945 | |
10946 | yylval.ival = OP_NULL; | |
10947 | ||
5db06880 | 10948 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10949 | if (!s) |
cea2e8a9 | 10950 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 10951 | |
3280af22 | 10952 | if (s[-1] == PL_multi_open) |
2f3197b3 | 10953 | s--; |
5db06880 NC |
10954 | #ifdef PERL_MAD |
10955 | if (PL_madskills) { | |
cd81e915 NC |
10956 | CURMAD('q', PL_thisopen); |
10957 | CURMAD('_', PL_thiswhite); | |
10958 | CURMAD('E', PL_thisstuff); | |
10959 | CURMAD('Q', PL_thisclose); | |
10960 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10961 | } |
10962 | #endif | |
2f3197b3 | 10963 | |
5db06880 | 10964 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10965 | if (!s) { |
37fd879b | 10966 | if (PL_lex_stuff) { |
3280af22 | 10967 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10968 | PL_lex_stuff = NULL; |
37fd879b | 10969 | } |
cea2e8a9 | 10970 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 10971 | } |
5db06880 | 10972 | if (PL_madskills) { |
cd81e915 NC |
10973 | CURMAD('z', PL_thisopen); |
10974 | CURMAD('R', PL_thisstuff); | |
10975 | CURMAD('Z', PL_thisclose); | |
5db06880 | 10976 | } |
79072805 | 10977 | |
a0ed51b3 | 10978 | complement = del = squash = 0; |
5db06880 NC |
10979 | #ifdef PERL_MAD |
10980 | modstart = s; | |
10981 | #endif | |
7a1e2023 NC |
10982 | while (1) { |
10983 | switch (*s) { | |
10984 | case 'c': | |
79072805 | 10985 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
10986 | break; |
10987 | case 'd': | |
a0ed51b3 | 10988 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
10989 | break; |
10990 | case 's': | |
79072805 | 10991 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
10992 | break; |
10993 | default: | |
10994 | goto no_more; | |
10995 | } | |
395c3793 LW |
10996 | s++; |
10997 | } | |
7a1e2023 | 10998 | no_more: |
8973db79 | 10999 | |
ea71c68d | 11000 | tbl = PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11001 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11002 | o->op_private &= ~OPpTRANS_ALL; |
11003 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11004 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11005 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11006 | |
3280af22 | 11007 | PL_lex_op = o; |
79072805 | 11008 | yylval.ival = OP_TRANS; |
5db06880 NC |
11009 | |
11010 | #ifdef PERL_MAD | |
11011 | if (PL_madskills) { | |
11012 | if (modstart != s) | |
11013 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11014 | append_madprops(PL_thismad, o, 0); |
11015 | PL_thismad = 0; | |
5db06880 NC |
11016 | } |
11017 | #endif | |
11018 | ||
79072805 LW |
11019 | return s; |
11020 | } | |
11021 | ||
76e3520e | 11022 | STATIC char * |
cea2e8a9 | 11023 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11024 | { |
97aff369 | 11025 | dVAR; |
79072805 LW |
11026 | SV *herewas; |
11027 | I32 op_type = OP_SCALAR; | |
11028 | I32 len; | |
11029 | SV *tmpstr; | |
11030 | char term; | |
73d840c0 | 11031 | const char *found_newline; |
79072805 | 11032 | register char *d; |
fc36a67e | 11033 | register char *e; |
4633a7c4 | 11034 | char *peek; |
f54cb97a | 11035 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11036 | #ifdef PERL_MAD |
11037 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11038 | char *tstart; | |
11039 | ||
cd81e915 | 11040 | PL_realtokenstart = -1; |
5db06880 | 11041 | #endif |
79072805 LW |
11042 | |
11043 | s += 2; | |
3280af22 NIS |
11044 | d = PL_tokenbuf; |
11045 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11046 | if (!outer) |
79072805 | 11047 | *d++ = '\n'; |
c35e046a AL |
11048 | peek = s; |
11049 | while (SPACE_OR_TAB(*peek)) | |
11050 | peek++; | |
3792a11b | 11051 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11052 | s = peek; |
79072805 | 11053 | term = *s++; |
3280af22 | 11054 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11055 | d += len; |
3280af22 | 11056 | if (s < PL_bufend) |
79072805 | 11057 | s++; |
79072805 LW |
11058 | } |
11059 | else { | |
11060 | if (*s == '\\') | |
11061 | s++, term = '\''; | |
11062 | else | |
11063 | term = '"'; | |
7e2040f0 | 11064 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11065 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11066 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11067 | if (d < e) |
11068 | *d++ = *s; | |
11069 | } | |
11070 | } | |
3280af22 | 11071 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11072 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11073 | *d++ = '\n'; |
11074 | *d = '\0'; | |
3280af22 | 11075 | len = d - PL_tokenbuf; |
5db06880 NC |
11076 | |
11077 | #ifdef PERL_MAD | |
11078 | if (PL_madskills) { | |
11079 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11080 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11081 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11082 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11083 | stuffstart = s - SvPVX(PL_linestr); |
11084 | } | |
11085 | #endif | |
6a27c188 | 11086 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11087 | d = strchr(s, '\r'); |
11088 | if (d) { | |
b464bac0 | 11089 | char * const olds = s; |
f63a84b2 | 11090 | s = d; |
3280af22 | 11091 | while (s < PL_bufend) { |
f63a84b2 LW |
11092 | if (*s == '\r') { |
11093 | *d++ = '\n'; | |
11094 | if (*++s == '\n') | |
11095 | s++; | |
11096 | } | |
11097 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11098 | *d++ = *s++; | |
11099 | s++; | |
11100 | } | |
11101 | else | |
11102 | *d++ = *s++; | |
11103 | } | |
11104 | *d = '\0'; | |
3280af22 | 11105 | PL_bufend = d; |
95a20fc0 | 11106 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11107 | s = olds; |
11108 | } | |
11109 | #endif | |
5db06880 NC |
11110 | #ifdef PERL_MAD |
11111 | found_newline = 0; | |
11112 | #endif | |
10edeb5d | 11113 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11114 | herewas = newSVpvn(s,PL_bufend-s); |
11115 | } | |
11116 | else { | |
5db06880 NC |
11117 | #ifdef PERL_MAD |
11118 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11119 | #else | |
73d840c0 AL |
11120 | s--; |
11121 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11122 | #endif |
73d840c0 | 11123 | } |
5db06880 NC |
11124 | #ifdef PERL_MAD |
11125 | if (PL_madskills) { | |
11126 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11127 | if (PL_thisstuff) |
11128 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11129 | else |
cd81e915 | 11130 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11131 | } |
11132 | #endif | |
79072805 | 11133 | s += SvCUR(herewas); |
748a9306 | 11134 | |
5db06880 NC |
11135 | #ifdef PERL_MAD |
11136 | stuffstart = s - SvPVX(PL_linestr); | |
11137 | ||
11138 | if (found_newline) | |
11139 | s--; | |
11140 | #endif | |
11141 | ||
561b68a9 | 11142 | tmpstr = newSV(79); |
748a9306 LW |
11143 | sv_upgrade(tmpstr, SVt_PVIV); |
11144 | if (term == '\'') { | |
79072805 | 11145 | op_type = OP_CONST; |
45977657 | 11146 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11147 | } |
11148 | else if (term == '`') { | |
79072805 | 11149 | op_type = OP_BACKTICK; |
45977657 | 11150 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11151 | } |
79072805 LW |
11152 | |
11153 | CLINE; | |
57843af0 | 11154 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11155 | PL_multi_open = PL_multi_close = '<'; |
11156 | term = *PL_tokenbuf; | |
0244c3a4 | 11157 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11158 | char * const bufptr = PL_sublex_info.super_bufptr; |
11159 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11160 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11161 | s = strchr(bufptr, '\n'); |
11162 | if (!s) | |
11163 | s = bufend; | |
11164 | d = s; | |
11165 | while (s < bufend && | |
11166 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11167 | if (*s++ == '\n') | |
57843af0 | 11168 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11169 | } |
11170 | if (s >= bufend) { | |
eb160463 | 11171 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11172 | missingterm(PL_tokenbuf); |
11173 | } | |
11174 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11175 | sv_setpvn(tmpstr,d+1,s-d); | |
11176 | s += len - 1; | |
11177 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11178 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11179 | |
11180 | s = olds; | |
11181 | goto retval; | |
11182 | } | |
11183 | else if (!outer) { | |
79072805 | 11184 | d = s; |
3280af22 NIS |
11185 | while (s < PL_bufend && |
11186 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11187 | if (*s++ == '\n') |
57843af0 | 11188 | CopLINE_inc(PL_curcop); |
79072805 | 11189 | } |
3280af22 | 11190 | if (s >= PL_bufend) { |
eb160463 | 11191 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11192 | missingterm(PL_tokenbuf); |
79072805 LW |
11193 | } |
11194 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11195 | #ifdef PERL_MAD |
11196 | if (PL_madskills) { | |
cd81e915 NC |
11197 | if (PL_thisstuff) |
11198 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11199 | else |
cd81e915 | 11200 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11201 | stuffstart = s - SvPVX(PL_linestr); |
11202 | } | |
11203 | #endif | |
79072805 | 11204 | s += len - 1; |
57843af0 | 11205 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11206 | |
3280af22 NIS |
11207 | sv_catpvn(herewas,s,PL_bufend-s); |
11208 | sv_setsv(PL_linestr,herewas); | |
11209 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11210 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11211 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11212 | } |
11213 | else | |
11214 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11215 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11216 | #ifdef PERL_MAD |
11217 | if (PL_madskills) { | |
11218 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11219 | if (PL_thisstuff) |
11220 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11221 | else |
cd81e915 | 11222 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11223 | } |
11224 | #endif | |
fd2d0953 | 11225 | if (!outer || |
3280af22 | 11226 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11227 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11228 | missingterm(PL_tokenbuf); |
79072805 | 11229 | } |
5db06880 NC |
11230 | #ifdef PERL_MAD |
11231 | stuffstart = s - SvPVX(PL_linestr); | |
11232 | #endif | |
57843af0 | 11233 | CopLINE_inc(PL_curcop); |
3280af22 | 11234 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11235 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11236 | #ifndef PERL_STRICT_CR |
3280af22 | 11237 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11238 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11239 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11240 | { |
3280af22 NIS |
11241 | PL_bufend[-2] = '\n'; |
11242 | PL_bufend--; | |
95a20fc0 | 11243 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11244 | } |
3280af22 NIS |
11245 | else if (PL_bufend[-1] == '\r') |
11246 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11247 | } |
3280af22 NIS |
11248 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11249 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11250 | #endif |
80a702cd | 11251 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11252 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 11253 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11254 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11255 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11256 | sv_catsv(PL_linestr,herewas); |
11257 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11258 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11259 | } |
11260 | else { | |
3280af22 NIS |
11261 | s = PL_bufend; |
11262 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11263 | } |
11264 | } | |
79072805 | 11265 | s++; |
0244c3a4 | 11266 | retval: |
57843af0 | 11267 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11268 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11269 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11270 | } |
8990e307 | 11271 | SvREFCNT_dec(herewas); |
2f31ce75 | 11272 | if (!IN_BYTES) { |
95a20fc0 | 11273 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11274 | SvUTF8_on(tmpstr); |
11275 | else if (PL_encoding) | |
11276 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11277 | } | |
3280af22 | 11278 | PL_lex_stuff = tmpstr; |
79072805 LW |
11279 | yylval.ival = op_type; |
11280 | return s; | |
11281 | } | |
11282 | ||
02aa26ce NT |
11283 | /* scan_inputsymbol |
11284 | takes: current position in input buffer | |
11285 | returns: new position in input buffer | |
11286 | side-effects: yylval and lex_op are set. | |
11287 | ||
11288 | This code handles: | |
11289 | ||
11290 | <> read from ARGV | |
11291 | <FH> read from filehandle | |
11292 | <pkg::FH> read from package qualified filehandle | |
11293 | <pkg'FH> read from package qualified filehandle | |
11294 | <$fh> read from filehandle in $fh | |
11295 | <*.h> filename glob | |
11296 | ||
11297 | */ | |
11298 | ||
76e3520e | 11299 | STATIC char * |
cea2e8a9 | 11300 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11301 | { |
97aff369 | 11302 | dVAR; |
02aa26ce | 11303 | register char *s = start; /* current position in buffer */ |
1b420867 | 11304 | char *end; |
79072805 LW |
11305 | I32 len; |
11306 | ||
6136c704 AL |
11307 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11308 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11309 | ||
1b420867 GS |
11310 | end = strchr(s, '\n'); |
11311 | if (!end) | |
11312 | end = PL_bufend; | |
11313 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11314 | |
11315 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11316 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11317 | */ |
11318 | ||
bb7a0f54 | 11319 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11320 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11321 | if (s >= end) |
cea2e8a9 | 11322 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11323 | |
fc36a67e | 11324 | s++; |
02aa26ce NT |
11325 | |
11326 | /* check for <$fh> | |
11327 | Remember, only scalar variables are interpreted as filehandles by | |
11328 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11329 | treated as a glob() call. | |
11330 | This code makes use of the fact that except for the $ at the front, | |
11331 | a scalar variable and a filehandle look the same. | |
11332 | */ | |
4633a7c4 | 11333 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11334 | |
11335 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11336 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11337 | d++; |
02aa26ce NT |
11338 | |
11339 | /* If we've tried to read what we allow filehandles to look like, and | |
11340 | there's still text left, then it must be a glob() and not a getline. | |
11341 | Use scan_str to pull out the stuff between the <> and treat it | |
11342 | as nothing more than a string. | |
11343 | */ | |
11344 | ||
3280af22 | 11345 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11346 | yylval.ival = OP_GLOB; |
11347 | set_csh(); | |
5db06880 | 11348 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11349 | if (!s) |
cea2e8a9 | 11350 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11351 | return s; |
11352 | } | |
395c3793 | 11353 | else { |
9b3023bc | 11354 | bool readline_overriden = FALSE; |
6136c704 | 11355 | GV *gv_readline; |
9b3023bc | 11356 | GV **gvp; |
02aa26ce | 11357 | /* we're in a filehandle read situation */ |
3280af22 | 11358 | d = PL_tokenbuf; |
02aa26ce NT |
11359 | |
11360 | /* turn <> into <ARGV> */ | |
79072805 | 11361 | if (!len) |
689badd5 | 11362 | Copy("ARGV",d,5,char); |
02aa26ce | 11363 | |
9b3023bc | 11364 | /* Check whether readline() is overriden */ |
fafc274c | 11365 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11366 | if ((gv_readline |
ba979b31 | 11367 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11368 | || |
017a3ce5 | 11369 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 11370 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 11371 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11372 | readline_overriden = TRUE; |
11373 | ||
02aa26ce NT |
11374 | /* if <$fh>, create the ops to turn the variable into a |
11375 | filehandle | |
11376 | */ | |
79072805 | 11377 | if (*d == '$') { |
02aa26ce NT |
11378 | /* try to find it in the pad for this block, otherwise find |
11379 | add symbol table ops | |
11380 | */ | |
bbd11bfc AL |
11381 | const PADOFFSET tmp = pad_findmy(d); |
11382 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11383 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11384 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11385 | HEK * const stashname = HvNAME_HEK(stash); | |
11386 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11387 | sv_catpvs(sym, "::"); |
f558d5af JH |
11388 | sv_catpv(sym, d+1); |
11389 | d = SvPVX(sym); | |
11390 | goto intro_sym; | |
11391 | } | |
11392 | else { | |
6136c704 | 11393 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11394 | o->op_targ = tmp; |
9b3023bc RGS |
11395 | PL_lex_op = readline_overriden |
11396 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11397 | append_elem(OP_LIST, o, | |
11398 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11399 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11400 | } |
a0d0e21e LW |
11401 | } |
11402 | else { | |
f558d5af JH |
11403 | GV *gv; |
11404 | ++d; | |
11405 | intro_sym: | |
11406 | gv = gv_fetchpv(d, | |
11407 | (PL_in_eval | |
11408 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11409 | : GV_ADDMULTI), |
f558d5af | 11410 | SVt_PV); |
9b3023bc RGS |
11411 | PL_lex_op = readline_overriden |
11412 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11413 | append_elem(OP_LIST, | |
11414 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11415 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11416 | : (OP*)newUNOP(OP_READLINE, 0, | |
11417 | newUNOP(OP_RV2SV, 0, | |
11418 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11419 | } |
7c6fadd6 RGS |
11420 | if (!readline_overriden) |
11421 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11422 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11423 | yylval.ival = OP_NULL; |
11424 | } | |
02aa26ce NT |
11425 | |
11426 | /* If it's none of the above, it must be a literal filehandle | |
11427 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11428 | else { |
6136c704 | 11429 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11430 | PL_lex_op = readline_overriden |
11431 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11432 | append_elem(OP_LIST, | |
11433 | newGVOP(OP_GV, 0, gv), | |
11434 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11435 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11436 | yylval.ival = OP_NULL; |
11437 | } | |
11438 | } | |
02aa26ce | 11439 | |
79072805 LW |
11440 | return s; |
11441 | } | |
11442 | ||
02aa26ce NT |
11443 | |
11444 | /* scan_str | |
11445 | takes: start position in buffer | |
09bef843 SB |
11446 | keep_quoted preserve \ on the embedded delimiter(s) |
11447 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11448 | returns: position to continue reading from buffer |
11449 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11450 | updates the read buffer. | |
11451 | ||
11452 | This subroutine pulls a string out of the input. It is called for: | |
11453 | q single quotes q(literal text) | |
11454 | ' single quotes 'literal text' | |
11455 | qq double quotes qq(interpolate $here please) | |
11456 | " double quotes "interpolate $here please" | |
11457 | qx backticks qx(/bin/ls -l) | |
11458 | ` backticks `/bin/ls -l` | |
11459 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11460 | m// regexp match m/this/ | |
11461 | s/// regexp substitute s/this/that/ | |
11462 | tr/// string transliterate tr/this/that/ | |
11463 | y/// string transliterate y/this/that/ | |
11464 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11465 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11466 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11467 | ||
11468 | In most of these cases (all but <>, patterns and transliterate) | |
11469 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11470 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11471 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11472 | calls scan_str(). | |
4e553d73 | 11473 | |
02aa26ce NT |
11474 | It skips whitespace before the string starts, and treats the first |
11475 | character as the delimiter. If the delimiter is one of ([{< then | |
11476 | the corresponding "close" character )]}> is used as the closing | |
11477 | delimiter. It allows quoting of delimiters, and if the string has | |
11478 | balanced delimiters ([{<>}]) it allows nesting. | |
11479 | ||
37fd879b HS |
11480 | On success, the SV with the resulting string is put into lex_stuff or, |
11481 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11482 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11483 | For convenience, the terminating delimiter character is stuffed into | |
11484 | SvIVX of the SV. | |
02aa26ce NT |
11485 | */ |
11486 | ||
76e3520e | 11487 | STATIC char * |
09bef843 | 11488 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11489 | { |
97aff369 | 11490 | dVAR; |
02aa26ce | 11491 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11492 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11493 | register char *s = start; /* current position in the buffer */ |
11494 | register char term; /* terminating character */ | |
11495 | register char *to; /* current position in the sv's data */ | |
11496 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11497 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11498 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11499 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11500 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11501 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11502 | #ifdef PERL_MAD |
11503 | int stuffstart; | |
11504 | char *tstart; | |
11505 | #endif | |
02aa26ce NT |
11506 | |
11507 | /* skip space before the delimiter */ | |
29595ff2 NC |
11508 | if (isSPACE(*s)) { |
11509 | s = PEEKSPACE(s); | |
11510 | } | |
02aa26ce | 11511 | |
5db06880 | 11512 | #ifdef PERL_MAD |
cd81e915 NC |
11513 | if (PL_realtokenstart >= 0) { |
11514 | stuffstart = PL_realtokenstart; | |
11515 | PL_realtokenstart = -1; | |
5db06880 NC |
11516 | } |
11517 | else | |
11518 | stuffstart = start - SvPVX(PL_linestr); | |
11519 | #endif | |
02aa26ce | 11520 | /* mark where we are, in case we need to report errors */ |
79072805 | 11521 | CLINE; |
02aa26ce NT |
11522 | |
11523 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11524 | term = *s; |
220e2d4e IH |
11525 | if (!UTF) { |
11526 | termcode = termstr[0] = term; | |
11527 | termlen = 1; | |
11528 | } | |
11529 | else { | |
f3b9ce0f | 11530 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11531 | Copy(s, termstr, termlen, U8); |
11532 | if (!UTF8_IS_INVARIANT(term)) | |
11533 | has_utf8 = TRUE; | |
11534 | } | |
b1c7b182 | 11535 | |
02aa26ce | 11536 | /* mark where we are */ |
57843af0 | 11537 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11538 | PL_multi_open = term; |
02aa26ce NT |
11539 | |
11540 | /* find corresponding closing delimiter */ | |
93a17b20 | 11541 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11542 | termcode = termstr[0] = term = tmps[5]; |
11543 | ||
3280af22 | 11544 | PL_multi_close = term; |
79072805 | 11545 | |
561b68a9 SH |
11546 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11547 | What a random number. */ | |
11548 | sv = newSV(79); | |
ed6116ce | 11549 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 11550 | SvIV_set(sv, termcode); |
a0d0e21e | 11551 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11552 | |
11553 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11554 | if (keep_delims) |
220e2d4e IH |
11555 | sv_catpvn(sv, s, termlen); |
11556 | s += termlen; | |
5db06880 NC |
11557 | #ifdef PERL_MAD |
11558 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11559 | if (!PL_thisopen && !keep_delims) { |
11560 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11561 | stuffstart = s - SvPVX(PL_linestr); |
11562 | } | |
11563 | #endif | |
93a17b20 | 11564 | for (;;) { |
220e2d4e IH |
11565 | if (PL_encoding && !UTF) { |
11566 | bool cont = TRUE; | |
11567 | ||
11568 | while (cont) { | |
95a20fc0 | 11569 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11570 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11571 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11572 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11573 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11574 | |
11575 | for (; s < ns; s++) { | |
11576 | if (*s == '\n' && !PL_rsfp) | |
11577 | CopLINE_inc(PL_curcop); | |
11578 | } | |
11579 | if (!found) | |
11580 | goto read_more_line; | |
11581 | else { | |
11582 | /* handle quoted delimiters */ | |
52327caf | 11583 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11584 | const char *t; |
95a20fc0 | 11585 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11586 | t--; |
11587 | if ((svlast-1 - t) % 2) { | |
11588 | if (!keep_quoted) { | |
11589 | *(svlast-1) = term; | |
11590 | *svlast = '\0'; | |
11591 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11592 | } | |
11593 | continue; | |
11594 | } | |
11595 | } | |
11596 | if (PL_multi_open == PL_multi_close) { | |
11597 | cont = FALSE; | |
11598 | } | |
11599 | else { | |
f54cb97a AL |
11600 | const char *t; |
11601 | char *w; | |
0331ef07 | 11602 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11603 | /* At here, all closes are "was quoted" one, |
11604 | so we don't check PL_multi_close. */ | |
11605 | if (*t == '\\') { | |
11606 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11607 | t++; | |
11608 | else | |
11609 | *w++ = *t++; | |
11610 | } | |
11611 | else if (*t == PL_multi_open) | |
11612 | brackets++; | |
11613 | ||
11614 | *w = *t; | |
11615 | } | |
11616 | if (w < t) { | |
11617 | *w++ = term; | |
11618 | *w = '\0'; | |
95a20fc0 | 11619 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11620 | } |
0331ef07 | 11621 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11622 | if (--brackets <= 0) |
11623 | cont = FALSE; | |
11624 | } | |
11625 | } | |
11626 | } | |
11627 | if (!keep_delims) { | |
11628 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11629 | *SvEND(sv) = '\0'; | |
11630 | } | |
11631 | break; | |
11632 | } | |
11633 | ||
02aa26ce | 11634 | /* extend sv if need be */ |
3280af22 | 11635 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11636 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11637 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11638 | |
02aa26ce | 11639 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11640 | if (PL_multi_open == PL_multi_close) { |
11641 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11642 | /* embedded newlines increment the current line number */ |
3280af22 | 11643 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11644 | CopLINE_inc(PL_curcop); |
02aa26ce | 11645 | /* handle quoted delimiters */ |
3280af22 | 11646 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11647 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11648 | s++; |
02aa26ce | 11649 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11650 | else |
11651 | *to++ = *s++; | |
11652 | } | |
02aa26ce NT |
11653 | /* terminate when run out of buffer (the for() condition), or |
11654 | have found the terminator */ | |
220e2d4e IH |
11655 | else if (*s == term) { |
11656 | if (termlen == 1) | |
11657 | break; | |
f3b9ce0f | 11658 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11659 | break; |
11660 | } | |
63cd0674 | 11661 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11662 | has_utf8 = TRUE; |
93a17b20 LW |
11663 | *to = *s; |
11664 | } | |
11665 | } | |
02aa26ce NT |
11666 | |
11667 | /* if the terminator isn't the same as the start character (e.g., | |
11668 | matched brackets), we have to allow more in the quoting, and | |
11669 | be prepared for nested brackets. | |
11670 | */ | |
93a17b20 | 11671 | else { |
02aa26ce | 11672 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11673 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11674 | /* embedded newlines increment the line count */ |
3280af22 | 11675 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11676 | CopLINE_inc(PL_curcop); |
02aa26ce | 11677 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11678 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11679 | if (!keep_quoted && |
11680 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11681 | s++; |
11682 | else | |
11683 | *to++ = *s++; | |
11684 | } | |
02aa26ce | 11685 | /* allow nested opens and closes */ |
3280af22 | 11686 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11687 | break; |
3280af22 | 11688 | else if (*s == PL_multi_open) |
93a17b20 | 11689 | brackets++; |
63cd0674 | 11690 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11691 | has_utf8 = TRUE; |
93a17b20 LW |
11692 | *to = *s; |
11693 | } | |
11694 | } | |
02aa26ce | 11695 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11696 | *to = '\0'; |
95a20fc0 | 11697 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11698 | |
02aa26ce NT |
11699 | /* |
11700 | * this next chunk reads more into the buffer if we're not done yet | |
11701 | */ | |
11702 | ||
b1c7b182 GS |
11703 | if (s < PL_bufend) |
11704 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11705 | |
6a27c188 | 11706 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11707 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11708 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11709 | (to[-2] == '\n' && to[-1] == '\r')) | |
11710 | { | |
f63a84b2 LW |
11711 | to[-2] = '\n'; |
11712 | to--; | |
95a20fc0 | 11713 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11714 | } |
11715 | else if (to[-1] == '\r') | |
11716 | to[-1] = '\n'; | |
11717 | } | |
95a20fc0 | 11718 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11719 | to[-1] = '\n'; |
11720 | #endif | |
11721 | ||
220e2d4e | 11722 | read_more_line: |
02aa26ce NT |
11723 | /* if we're out of file, or a read fails, bail and reset the current |
11724 | line marker so we can report where the unterminated string began | |
11725 | */ | |
5db06880 NC |
11726 | #ifdef PERL_MAD |
11727 | if (PL_madskills) { | |
c35e046a | 11728 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11729 | if (PL_thisstuff) |
11730 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11731 | else |
cd81e915 | 11732 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11733 | } |
11734 | #endif | |
3280af22 NIS |
11735 | if (!PL_rsfp || |
11736 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11737 | sv_free(sv); |
eb160463 | 11738 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11739 | return NULL; |
79072805 | 11740 | } |
5db06880 NC |
11741 | #ifdef PERL_MAD |
11742 | stuffstart = 0; | |
11743 | #endif | |
02aa26ce | 11744 | /* we read a line, so increment our line counter */ |
57843af0 | 11745 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11746 | |
02aa26ce | 11747 | /* update debugger info */ |
80a702cd | 11748 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11749 | update_debugger_info(PL_linestr, NULL, 0); |
a0ed51b3 | 11750 | |
3280af22 NIS |
11751 | /* having changed the buffer, we must update PL_bufend */ |
11752 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11753 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11754 | } |
4e553d73 | 11755 | |
02aa26ce NT |
11756 | /* at this point, we have successfully read the delimited string */ |
11757 | ||
220e2d4e | 11758 | if (!PL_encoding || UTF) { |
5db06880 NC |
11759 | #ifdef PERL_MAD |
11760 | if (PL_madskills) { | |
c35e046a | 11761 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 11762 | const int len = s - tstart; |
cd81e915 | 11763 | if (PL_thisstuff) |
c35e046a | 11764 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11765 | else |
c35e046a | 11766 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11767 | if (!PL_thisclose && !keep_delims) |
11768 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11769 | } |
11770 | #endif | |
11771 | ||
220e2d4e IH |
11772 | if (keep_delims) |
11773 | sv_catpvn(sv, s, termlen); | |
11774 | s += termlen; | |
11775 | } | |
5db06880 NC |
11776 | #ifdef PERL_MAD |
11777 | else { | |
11778 | if (PL_madskills) { | |
c35e046a AL |
11779 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11780 | const int len = s - tstart - termlen; | |
cd81e915 | 11781 | if (PL_thisstuff) |
c35e046a | 11782 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11783 | else |
c35e046a | 11784 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11785 | if (!PL_thisclose && !keep_delims) |
11786 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11787 | } |
11788 | } | |
11789 | #endif | |
220e2d4e | 11790 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11791 | SvUTF8_on(sv); |
d0063567 | 11792 | |
57843af0 | 11793 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11794 | |
11795 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11796 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11797 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11798 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11799 | } |
02aa26ce NT |
11800 | |
11801 | /* decide whether this is the first or second quoted string we've read | |
11802 | for this op | |
11803 | */ | |
4e553d73 | 11804 | |
3280af22 NIS |
11805 | if (PL_lex_stuff) |
11806 | PL_lex_repl = sv; | |
79072805 | 11807 | else |
3280af22 | 11808 | PL_lex_stuff = sv; |
378cc40b LW |
11809 | return s; |
11810 | } | |
11811 | ||
02aa26ce NT |
11812 | /* |
11813 | scan_num | |
11814 | takes: pointer to position in buffer | |
11815 | returns: pointer to new position in buffer | |
11816 | side-effects: builds ops for the constant in yylval.op | |
11817 | ||
11818 | Read a number in any of the formats that Perl accepts: | |
11819 | ||
7fd134d9 JH |
11820 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11821 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11822 | 0b[01](_?[01])* |
11823 | 0[0-7](_?[0-7])* | |
11824 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11825 | |
3280af22 | 11826 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11827 | thing it reads. |
11828 | ||
11829 | If it reads a number without a decimal point or an exponent, it will | |
11830 | try converting the number to an integer and see if it can do so | |
11831 | without loss of precision. | |
11832 | */ | |
4e553d73 | 11833 | |
378cc40b | 11834 | char * |
bfed75c6 | 11835 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11836 | { |
97aff369 | 11837 | dVAR; |
bfed75c6 | 11838 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11839 | register char *d; /* destination in temp buffer */ |
11840 | register char *e; /* end of temp buffer */ | |
86554af2 | 11841 | NV nv; /* number read, as a double */ |
a0714e2c | 11842 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11843 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11844 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11845 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11846 | |
02aa26ce NT |
11847 | /* We use the first character to decide what type of number this is */ |
11848 | ||
378cc40b | 11849 | switch (*s) { |
79072805 | 11850 | default: |
cea2e8a9 | 11851 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11852 | |
02aa26ce | 11853 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11854 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11855 | case '0': |
11856 | { | |
02aa26ce NT |
11857 | /* variables: |
11858 | u holds the "number so far" | |
4f19785b WSI |
11859 | shift the power of 2 of the base |
11860 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11861 | overflowed was the number more than we can hold? |
11862 | ||
11863 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11864 | we in octal/hex/binary?" indicator to disallow hex characters |
11865 | when in octal mode. | |
02aa26ce | 11866 | */ |
9e24b6e2 JH |
11867 | NV n = 0.0; |
11868 | UV u = 0; | |
79072805 | 11869 | I32 shift; |
9e24b6e2 | 11870 | bool overflowed = FALSE; |
61f33854 | 11871 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11872 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11873 | static const char* const bases[5] = | |
11874 | { "", "binary", "", "octal", "hexadecimal" }; | |
11875 | static const char* const Bases[5] = | |
11876 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11877 | static const char* const maxima[5] = | |
11878 | { "", | |
11879 | "0b11111111111111111111111111111111", | |
11880 | "", | |
11881 | "037777777777", | |
11882 | "0xffffffff" }; | |
bfed75c6 | 11883 | const char *base, *Base, *max; |
378cc40b | 11884 | |
02aa26ce | 11885 | /* check for hex */ |
378cc40b LW |
11886 | if (s[1] == 'x') { |
11887 | shift = 4; | |
11888 | s += 2; | |
61f33854 | 11889 | just_zero = FALSE; |
4f19785b WSI |
11890 | } else if (s[1] == 'b') { |
11891 | shift = 1; | |
11892 | s += 2; | |
61f33854 | 11893 | just_zero = FALSE; |
378cc40b | 11894 | } |
02aa26ce | 11895 | /* check for a decimal in disguise */ |
b78218b7 | 11896 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11897 | goto decimal; |
02aa26ce | 11898 | /* so it must be octal */ |
928753ea | 11899 | else { |
378cc40b | 11900 | shift = 3; |
928753ea JH |
11901 | s++; |
11902 | } | |
11903 | ||
11904 | if (*s == '_') { | |
11905 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11906 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11907 | "Misplaced _ in number"); |
11908 | lastub = s++; | |
11909 | } | |
9e24b6e2 JH |
11910 | |
11911 | base = bases[shift]; | |
11912 | Base = Bases[shift]; | |
11913 | max = maxima[shift]; | |
02aa26ce | 11914 | |
4f19785b | 11915 | /* read the rest of the number */ |
378cc40b | 11916 | for (;;) { |
9e24b6e2 | 11917 | /* x is used in the overflow test, |
893fe2c2 | 11918 | b is the digit we're adding on. */ |
9e24b6e2 | 11919 | UV x, b; |
55497cff | 11920 | |
378cc40b | 11921 | switch (*s) { |
02aa26ce NT |
11922 | |
11923 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11924 | default: |
11925 | goto out; | |
02aa26ce | 11926 | |
928753ea | 11927 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11928 | case '_': |
041457d9 | 11929 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11930 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11931 | "Misplaced _ in number"); |
11932 | lastub = s++; | |
de3bb511 | 11933 | break; |
02aa26ce NT |
11934 | |
11935 | /* 8 and 9 are not octal */ | |
378cc40b | 11936 | case '8': case '9': |
4f19785b | 11937 | if (shift == 3) |
cea2e8a9 | 11938 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11939 | /* FALL THROUGH */ |
02aa26ce NT |
11940 | |
11941 | /* octal digits */ | |
4f19785b | 11942 | case '2': case '3': case '4': |
378cc40b | 11943 | case '5': case '6': case '7': |
4f19785b | 11944 | if (shift == 1) |
cea2e8a9 | 11945 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11946 | /* FALL THROUGH */ |
11947 | ||
11948 | case '0': case '1': | |
02aa26ce | 11949 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11950 | goto digit; |
02aa26ce NT |
11951 | |
11952 | /* hex digits */ | |
378cc40b LW |
11953 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
11954 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 11955 | /* make sure they said 0x */ |
378cc40b LW |
11956 | if (shift != 4) |
11957 | goto out; | |
55497cff | 11958 | b = (*s++ & 7) + 9; |
02aa26ce NT |
11959 | |
11960 | /* Prepare to put the digit we have onto the end | |
11961 | of the number so far. We check for overflows. | |
11962 | */ | |
11963 | ||
55497cff | 11964 | digit: |
61f33854 | 11965 | just_zero = FALSE; |
9e24b6e2 JH |
11966 | if (!overflowed) { |
11967 | x = u << shift; /* make room for the digit */ | |
11968 | ||
11969 | if ((x >> shift) != u | |
11970 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
11971 | overflowed = TRUE; |
11972 | n = (NV) u; | |
767a6a26 | 11973 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 11974 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
11975 | "Integer overflow in %s number", |
11976 | base); | |
11977 | } else | |
11978 | u = x | b; /* add the digit to the end */ | |
11979 | } | |
11980 | if (overflowed) { | |
11981 | n *= nvshift[shift]; | |
11982 | /* If an NV has not enough bits in its | |
11983 | * mantissa to represent an UV this summing of | |
11984 | * small low-order numbers is a waste of time | |
11985 | * (because the NV cannot preserve the | |
11986 | * low-order bits anyway): we could just | |
11987 | * remember when did we overflow and in the | |
11988 | * end just multiply n by the right | |
11989 | * amount. */ | |
11990 | n += (NV) b; | |
55497cff | 11991 | } |
378cc40b LW |
11992 | break; |
11993 | } | |
11994 | } | |
02aa26ce NT |
11995 | |
11996 | /* if we get here, we had success: make a scalar value from | |
11997 | the number. | |
11998 | */ | |
378cc40b | 11999 | out: |
928753ea JH |
12000 | |
12001 | /* final misplaced underbar check */ | |
12002 | if (s[-1] == '_') { | |
12003 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12004 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12005 | } |
12006 | ||
561b68a9 | 12007 | sv = newSV(0); |
9e24b6e2 | 12008 | if (overflowed) { |
041457d9 | 12009 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 12010 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12011 | "%s number > %s non-portable", |
12012 | Base, max); | |
12013 | sv_setnv(sv, n); | |
12014 | } | |
12015 | else { | |
15041a67 | 12016 | #if UVSIZE > 4 |
041457d9 | 12017 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 12018 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12019 | "%s number > %s non-portable", |
12020 | Base, max); | |
2cc4c2dc | 12021 | #endif |
9e24b6e2 JH |
12022 | sv_setuv(sv, u); |
12023 | } | |
61f33854 | 12024 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12025 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 12026 | sv, NULL, NULL); |
61f33854 | 12027 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 12028 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
12029 | } |
12030 | break; | |
02aa26ce NT |
12031 | |
12032 | /* | |
12033 | handle decimal numbers. | |
12034 | we're also sent here when we read a 0 as the first digit | |
12035 | */ | |
378cc40b LW |
12036 | case '1': case '2': case '3': case '4': case '5': |
12037 | case '6': case '7': case '8': case '9': case '.': | |
12038 | decimal: | |
3280af22 NIS |
12039 | d = PL_tokenbuf; |
12040 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12041 | floatit = FALSE; |
02aa26ce NT |
12042 | |
12043 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12044 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12045 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12046 | if -w is on |
12047 | */ | |
93a17b20 | 12048 | if (*s == '_') { |
041457d9 | 12049 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12050 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12051 | "Misplaced _ in number"); |
12052 | lastub = s++; | |
93a17b20 | 12053 | } |
fc36a67e | 12054 | else { |
02aa26ce | 12055 | /* check for end of fixed-length buffer */ |
fc36a67e | 12056 | if (d >= e) |
cea2e8a9 | 12057 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12058 | /* if we're ok, copy the character */ |
378cc40b | 12059 | *d++ = *s++; |
fc36a67e | 12060 | } |
378cc40b | 12061 | } |
02aa26ce NT |
12062 | |
12063 | /* final misplaced underbar check */ | |
928753ea | 12064 | if (lastub && s == lastub + 1) { |
d008e5eb | 12065 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12066 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12067 | } |
02aa26ce NT |
12068 | |
12069 | /* read a decimal portion if there is one. avoid | |
12070 | 3..5 being interpreted as the number 3. followed | |
12071 | by .5 | |
12072 | */ | |
2f3197b3 | 12073 | if (*s == '.' && s[1] != '.') { |
79072805 | 12074 | floatit = TRUE; |
378cc40b | 12075 | *d++ = *s++; |
02aa26ce | 12076 | |
928753ea JH |
12077 | if (*s == '_') { |
12078 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12079 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12080 | "Misplaced _ in number"); |
12081 | lastub = s; | |
12082 | } | |
12083 | ||
12084 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12085 | */ |
fc36a67e | 12086 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12087 | /* fixed length buffer check */ |
fc36a67e | 12088 | if (d >= e) |
cea2e8a9 | 12089 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12090 | if (*s == '_') { |
041457d9 | 12091 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12092 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12093 | "Misplaced _ in number"); |
12094 | lastub = s; | |
12095 | } | |
12096 | else | |
fc36a67e | 12097 | *d++ = *s; |
378cc40b | 12098 | } |
928753ea JH |
12099 | /* fractional part ending in underbar? */ |
12100 | if (s[-1] == '_') { | |
12101 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12102 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12103 | "Misplaced _ in number"); |
12104 | } | |
dd629d5b GS |
12105 | if (*s == '.' && isDIGIT(s[1])) { |
12106 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12107 | s = start; |
dd629d5b GS |
12108 | goto vstring; |
12109 | } | |
378cc40b | 12110 | } |
02aa26ce NT |
12111 | |
12112 | /* read exponent part, if present */ | |
3792a11b | 12113 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12114 | floatit = TRUE; |
12115 | s++; | |
02aa26ce NT |
12116 | |
12117 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12118 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12119 | |
7fd134d9 JH |
12120 | /* stray preinitial _ */ |
12121 | if (*s == '_') { | |
12122 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12123 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12124 | "Misplaced _ in number"); |
12125 | lastub = s++; | |
12126 | } | |
12127 | ||
02aa26ce | 12128 | /* allow positive or negative exponent */ |
378cc40b LW |
12129 | if (*s == '+' || *s == '-') |
12130 | *d++ = *s++; | |
02aa26ce | 12131 | |
7fd134d9 JH |
12132 | /* stray initial _ */ |
12133 | if (*s == '_') { | |
12134 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12135 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12136 | "Misplaced _ in number"); |
12137 | lastub = s++; | |
12138 | } | |
12139 | ||
7fd134d9 JH |
12140 | /* read digits of exponent */ |
12141 | while (isDIGIT(*s) || *s == '_') { | |
12142 | if (isDIGIT(*s)) { | |
12143 | if (d >= e) | |
12144 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12145 | *d++ = *s++; |
7fd134d9 JH |
12146 | } |
12147 | else { | |
041457d9 DM |
12148 | if (((lastub && s == lastub + 1) || |
12149 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12150 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12151 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12152 | "Misplaced _ in number"); |
b3b48e3e | 12153 | lastub = s++; |
7fd134d9 | 12154 | } |
7fd134d9 | 12155 | } |
378cc40b | 12156 | } |
02aa26ce | 12157 | |
02aa26ce NT |
12158 | |
12159 | /* make an sv from the string */ | |
561b68a9 | 12160 | sv = newSV(0); |
097ee67d | 12161 | |
0b7fceb9 | 12162 | /* |
58bb9ec3 NC |
12163 | We try to do an integer conversion first if no characters |
12164 | indicating "float" have been found. | |
0b7fceb9 MU |
12165 | */ |
12166 | ||
12167 | if (!floatit) { | |
58bb9ec3 | 12168 | UV uv; |
6136c704 | 12169 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12170 | |
12171 | if (flags == IS_NUMBER_IN_UV) { | |
12172 | if (uv <= IV_MAX) | |
86554af2 | 12173 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12174 | else |
c239479b | 12175 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12176 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12177 | if (uv <= (UV) IV_MIN) | |
12178 | sv_setiv(sv, -(IV)uv); | |
12179 | else | |
12180 | floatit = TRUE; | |
12181 | } else | |
12182 | floatit = TRUE; | |
12183 | } | |
0b7fceb9 | 12184 | if (floatit) { |
58bb9ec3 NC |
12185 | /* terminate the string */ |
12186 | *d = '\0'; | |
86554af2 JH |
12187 | nv = Atof(PL_tokenbuf); |
12188 | sv_setnv(sv, nv); | |
12189 | } | |
86554af2 | 12190 | |
b8403495 JH |
12191 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12192 | (PL_hints & HINT_NEW_INTEGER) ) | |
10edeb5d JH |
12193 | sv = new_constant(PL_tokenbuf, |
12194 | d - PL_tokenbuf, | |
12195 | (const char *) | |
b8403495 | 12196 | (floatit ? "float" : "integer"), |
a0714e2c | 12197 | sv, NULL, NULL); |
378cc40b | 12198 | break; |
0b7fceb9 | 12199 | |
e312add1 | 12200 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12201 | case 'v': |
dd629d5b | 12202 | vstring: |
561b68a9 | 12203 | sv = newSV(5); /* preallocate storage space */ |
b0f01acb | 12204 | s = scan_vstring(s,sv); |
a7cb1f99 | 12205 | break; |
79072805 | 12206 | } |
a687059c | 12207 | |
02aa26ce NT |
12208 | /* make the op for the constant and return */ |
12209 | ||
a86a20aa | 12210 | if (sv) |
b73d6f50 | 12211 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12212 | else |
5f66b61c | 12213 | lvalp->opval = NULL; |
a687059c | 12214 | |
73d840c0 | 12215 | return (char *)s; |
378cc40b LW |
12216 | } |
12217 | ||
76e3520e | 12218 | STATIC char * |
cea2e8a9 | 12219 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12220 | { |
97aff369 | 12221 | dVAR; |
79072805 | 12222 | register char *eol; |
378cc40b | 12223 | register char *t; |
6136c704 | 12224 | SV * const stuff = newSVpvs(""); |
79072805 | 12225 | bool needargs = FALSE; |
c5ee2135 | 12226 | bool eofmt = FALSE; |
5db06880 NC |
12227 | #ifdef PERL_MAD |
12228 | char *tokenstart = s; | |
12229 | SV* savewhite; | |
12230 | ||
12231 | if (PL_madskills) { | |
cd81e915 NC |
12232 | savewhite = PL_thiswhite; |
12233 | PL_thiswhite = 0; | |
5db06880 NC |
12234 | } |
12235 | #endif | |
378cc40b | 12236 | |
79072805 | 12237 | while (!needargs) { |
a1b95068 | 12238 | if (*s == '.') { |
c35e046a | 12239 | t = s+1; |
51882d45 | 12240 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12241 | while (SPACE_OR_TAB(*t)) |
12242 | t++; | |
51882d45 | 12243 | #else |
c35e046a AL |
12244 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12245 | t++; | |
51882d45 | 12246 | #endif |
c5ee2135 WL |
12247 | if (*t == '\n' || t == PL_bufend) { |
12248 | eofmt = TRUE; | |
79072805 | 12249 | break; |
c5ee2135 | 12250 | } |
79072805 | 12251 | } |
3280af22 | 12252 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12253 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12254 | if (!eol++) |
3280af22 | 12255 | eol = PL_bufend; |
0f85fab0 LW |
12256 | } |
12257 | else | |
3280af22 | 12258 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12259 | if (*s != '#') { |
a0d0e21e LW |
12260 | for (t = s; t < eol; t++) { |
12261 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12262 | needargs = FALSE; | |
12263 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12264 | } |
a0d0e21e LW |
12265 | if (*t == '@' || *t == '^') |
12266 | needargs = TRUE; | |
378cc40b | 12267 | } |
7121b347 MG |
12268 | if (eol > s) { |
12269 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12270 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12271 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12272 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12273 | end[-2] = '\n'; | |
12274 | end[-1] = '\0'; | |
b162af07 | 12275 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12276 | } |
2dc4c65b | 12277 | #endif |
7121b347 MG |
12278 | } |
12279 | else | |
12280 | break; | |
79072805 | 12281 | } |
95a20fc0 | 12282 | s = (char*)eol; |
3280af22 | 12283 | if (PL_rsfp) { |
5db06880 NC |
12284 | #ifdef PERL_MAD |
12285 | if (PL_madskills) { | |
cd81e915 NC |
12286 | if (PL_thistoken) |
12287 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12288 | else |
cd81e915 | 12289 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12290 | } |
12291 | #endif | |
3280af22 | 12292 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12293 | #ifdef PERL_MAD |
12294 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12295 | #else | |
3280af22 | 12296 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12297 | #endif |
3280af22 | 12298 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12299 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12300 | if (!s) { |
3280af22 | 12301 | s = PL_bufptr; |
378cc40b LW |
12302 | break; |
12303 | } | |
378cc40b | 12304 | } |
463ee0b2 | 12305 | incline(s); |
79072805 | 12306 | } |
a0d0e21e LW |
12307 | enough: |
12308 | if (SvCUR(stuff)) { | |
3280af22 | 12309 | PL_expect = XTERM; |
79072805 | 12310 | if (needargs) { |
3280af22 | 12311 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12312 | start_force(PL_curforce); |
9ded7720 | 12313 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12314 | force_next(','); |
12315 | } | |
a0d0e21e | 12316 | else |
3280af22 | 12317 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12318 | if (!IN_BYTES) { |
95a20fc0 | 12319 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12320 | SvUTF8_on(stuff); |
12321 | else if (PL_encoding) | |
12322 | sv_recode_to_utf8(stuff, PL_encoding); | |
12323 | } | |
cd81e915 | 12324 | start_force(PL_curforce); |
9ded7720 | 12325 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12326 | force_next(THING); |
cd81e915 | 12327 | start_force(PL_curforce); |
9ded7720 | 12328 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12329 | force_next(LSTOP); |
378cc40b | 12330 | } |
79072805 | 12331 | else { |
8990e307 | 12332 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12333 | if (eofmt) |
12334 | PL_lex_formbrack = 0; | |
3280af22 | 12335 | PL_bufptr = s; |
79072805 | 12336 | } |
5db06880 NC |
12337 | #ifdef PERL_MAD |
12338 | if (PL_madskills) { | |
cd81e915 NC |
12339 | if (PL_thistoken) |
12340 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12341 | else |
cd81e915 NC |
12342 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12343 | PL_thiswhite = savewhite; | |
5db06880 NC |
12344 | } |
12345 | #endif | |
79072805 | 12346 | return s; |
378cc40b | 12347 | } |
a687059c | 12348 | |
76e3520e | 12349 | STATIC void |
cea2e8a9 | 12350 | S_set_csh(pTHX) |
a687059c | 12351 | { |
ae986130 | 12352 | #ifdef CSH |
97aff369 | 12353 | dVAR; |
3280af22 NIS |
12354 | if (!PL_cshlen) |
12355 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12356 | #else |
b2675967 | 12357 | #if defined(USE_ITHREADS) |
96a5add6 | 12358 | PERL_UNUSED_CONTEXT; |
ae986130 | 12359 | #endif |
b2675967 | 12360 | #endif |
a687059c | 12361 | } |
463ee0b2 | 12362 | |
ba6d6ac9 | 12363 | I32 |
864dbfa3 | 12364 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12365 | { |
97aff369 | 12366 | dVAR; |
a3b680e6 | 12367 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12368 | CV* const outsidecv = PL_compcv; |
8990e307 | 12369 | |
3280af22 NIS |
12370 | if (PL_compcv) { |
12371 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12372 | } |
7766f137 | 12373 | SAVEI32(PL_subline); |
3280af22 | 12374 | save_item(PL_subname); |
3280af22 | 12375 | SAVESPTR(PL_compcv); |
3280af22 | 12376 | |
561b68a9 | 12377 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
12378 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
12379 | CvFLAGS(PL_compcv) |= flags; | |
12380 | ||
57843af0 | 12381 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12382 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12383 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12384 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12385 | |
8990e307 LW |
12386 | return oldsavestack_ix; |
12387 | } | |
12388 | ||
084592ab CN |
12389 | #ifdef __SC__ |
12390 | #pragma segment Perl_yylex | |
12391 | #endif | |
8990e307 | 12392 | int |
bfed75c6 | 12393 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12394 | { |
97aff369 | 12395 | dVAR; |
faef0170 | 12396 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12397 | yyerror(s); |
faef0170 | 12398 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12399 | return 0; |
8990e307 LW |
12400 | } |
12401 | ||
12402 | int | |
bfed75c6 | 12403 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12404 | { |
97aff369 | 12405 | dVAR; |
bfed75c6 AL |
12406 | const char *where = NULL; |
12407 | const char *context = NULL; | |
68dc0745 | 12408 | int contlen = -1; |
46fc3d4c | 12409 | SV *msg; |
5912531f | 12410 | int yychar = PL_parser->yychar; |
463ee0b2 | 12411 | |
3280af22 | 12412 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12413 | where = "at EOF"; |
8bcfe651 TM |
12414 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12415 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12416 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12417 | /* |
12418 | Only for NetWare: | |
12419 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12420 | when the script has error such as not having the closing quotes like: | |
12421 | if ($var eq "value) | |
12422 | Checking of white spaces is anyway done in NetWare code. | |
12423 | */ | |
12424 | #ifndef NETWARE | |
3280af22 NIS |
12425 | while (isSPACE(*PL_oldoldbufptr)) |
12426 | PL_oldoldbufptr++; | |
f355267c | 12427 | #endif |
3280af22 NIS |
12428 | context = PL_oldoldbufptr; |
12429 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12430 | } |
8bcfe651 TM |
12431 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12432 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12433 | /* |
12434 | Only for NetWare: | |
12435 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12436 | when the script has error such as not having the closing quotes like: | |
12437 | if ($var eq "value) | |
12438 | Checking of white spaces is anyway done in NetWare code. | |
12439 | */ | |
12440 | #ifndef NETWARE | |
3280af22 NIS |
12441 | while (isSPACE(*PL_oldbufptr)) |
12442 | PL_oldbufptr++; | |
f355267c | 12443 | #endif |
3280af22 NIS |
12444 | context = PL_oldbufptr; |
12445 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12446 | } |
12447 | else if (yychar > 255) | |
68dc0745 | 12448 | where = "next token ???"; |
12fbd33b | 12449 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12450 | if (PL_lex_state == LEX_NORMAL || |
12451 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12452 | where = "at end of line"; |
3280af22 | 12453 | else if (PL_lex_inpat) |
68dc0745 | 12454 | where = "within pattern"; |
463ee0b2 | 12455 | else |
68dc0745 | 12456 | where = "within string"; |
463ee0b2 | 12457 | } |
46fc3d4c | 12458 | else { |
6136c704 | 12459 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12460 | if (yychar < 32) |
cea2e8a9 | 12461 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12462 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12463 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12464 | else |
cea2e8a9 | 12465 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12466 | where = SvPVX_const(where_sv); |
463ee0b2 | 12467 | } |
46fc3d4c | 12468 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12469 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12470 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12471 | if (context) |
cea2e8a9 | 12472 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12473 | else |
cea2e8a9 | 12474 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12475 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12476 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12477 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12478 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12479 | PL_multi_end = 0; |
a0d0e21e | 12480 | } |
56da5a46 | 12481 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
be2597df | 12482 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); |
463ee0b2 | 12483 | else |
5a844595 | 12484 | qerror(msg); |
c7d6bfb2 GS |
12485 | if (PL_error_count >= 10) { |
12486 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12487 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 12488 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12489 | else |
12490 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12491 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12492 | } |
3280af22 | 12493 | PL_in_my = 0; |
5c284bb0 | 12494 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12495 | return 0; |
12496 | } | |
084592ab CN |
12497 | #ifdef __SC__ |
12498 | #pragma segment Main | |
12499 | #endif | |
4e35701f | 12500 | |
b250498f | 12501 | STATIC char* |
3ae08724 | 12502 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12503 | { |
97aff369 | 12504 | dVAR; |
f54cb97a | 12505 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12506 | switch (s[0]) { |
4e553d73 NIS |
12507 | case 0xFF: |
12508 | if (s[1] == 0xFE) { | |
7aa207d6 | 12509 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12510 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12511 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12512 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12513 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12514 | s += 2; |
7aa207d6 | 12515 | utf16le: |
dea0fc0b JH |
12516 | if (PL_bufend > (char*)s) { |
12517 | U8 *news; | |
12518 | I32 newlen; | |
12519 | ||
12520 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12521 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12522 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12523 | PL_bufend - (char*)s - 1, |
1de9afcd | 12524 | &newlen); |
7aa207d6 | 12525 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12526 | #ifdef PERL_MAD |
12527 | s = (U8*)SvPVX(PL_linestr); | |
12528 | Copy(news, s, newlen, U8); | |
12529 | s[newlen] = '\0'; | |
12530 | #endif | |
dea0fc0b | 12531 | Safefree(news); |
7aa207d6 JH |
12532 | SvUTF8_on(PL_linestr); |
12533 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12534 | #ifdef PERL_MAD |
12535 | /* FIXME - is this a general bug fix? */ | |
12536 | s[newlen] = '\0'; | |
12537 | #endif | |
7aa207d6 | 12538 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12539 | } |
b250498f | 12540 | #else |
7aa207d6 | 12541 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12542 | #endif |
01ec43d0 GS |
12543 | } |
12544 | break; | |
78ae23f5 | 12545 | case 0xFE: |
7aa207d6 | 12546 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12547 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12548 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12549 | s += 2; |
7aa207d6 | 12550 | utf16be: |
dea0fc0b JH |
12551 | if (PL_bufend > (char *)s) { |
12552 | U8 *news; | |
12553 | I32 newlen; | |
12554 | ||
12555 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12556 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12557 | utf16_to_utf8(s, news, |
12558 | PL_bufend - (char*)s, | |
12559 | &newlen); | |
7aa207d6 | 12560 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12561 | Safefree(news); |
7aa207d6 JH |
12562 | SvUTF8_on(PL_linestr); |
12563 | s = (U8*)SvPVX(PL_linestr); | |
12564 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12565 | } |
b250498f | 12566 | #else |
7aa207d6 | 12567 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12568 | #endif |
01ec43d0 GS |
12569 | } |
12570 | break; | |
3ae08724 GS |
12571 | case 0xEF: |
12572 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12573 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12574 | s += 3; /* UTF-8 */ |
12575 | } | |
12576 | break; | |
12577 | case 0: | |
7aa207d6 JH |
12578 | if (slen > 3) { |
12579 | if (s[1] == 0) { | |
12580 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12581 | /* UTF-32 big-endian */ | |
12582 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12583 | } | |
12584 | } | |
12585 | else if (s[2] == 0 && s[3] != 0) { | |
12586 | /* Leading bytes | |
12587 | * 00 xx 00 xx | |
12588 | * are a good indicator of UTF-16BE. */ | |
12589 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12590 | goto utf16be; | |
12591 | } | |
01ec43d0 | 12592 | } |
e294cc5d JH |
12593 | #ifdef EBCDIC |
12594 | case 0xDD: | |
12595 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12596 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12597 | s += 4; /* UTF-8 */ | |
12598 | } | |
12599 | break; | |
12600 | #endif | |
12601 | ||
7aa207d6 JH |
12602 | default: |
12603 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12604 | /* Leading bytes | |
12605 | * xx 00 xx 00 | |
12606 | * are a good indicator of UTF-16LE. */ | |
12607 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12608 | goto utf16le; | |
12609 | } | |
01ec43d0 | 12610 | } |
b8f84bb2 | 12611 | return (char*)s; |
b250498f | 12612 | } |
4755096e | 12613 | |
4755096e GS |
12614 | /* |
12615 | * restore_rsfp | |
12616 | * Restore a source filter. | |
12617 | */ | |
12618 | ||
12619 | static void | |
acfe0abc | 12620 | restore_rsfp(pTHX_ void *f) |
4755096e | 12621 | { |
97aff369 | 12622 | dVAR; |
0bd48802 | 12623 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
12624 | |
12625 | if (PL_rsfp == PerlIO_stdin()) | |
12626 | PerlIO_clearerr(PL_rsfp); | |
12627 | else if (PL_rsfp && (PL_rsfp != fp)) | |
12628 | PerlIO_close(PL_rsfp); | |
12629 | PL_rsfp = fp; | |
12630 | } | |
6e3aabd6 GS |
12631 | |
12632 | #ifndef PERL_NO_UTF16_FILTER | |
12633 | static I32 | |
acfe0abc | 12634 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12635 | { |
97aff369 | 12636 | dVAR; |
f54cb97a AL |
12637 | const STRLEN old = SvCUR(sv); |
12638 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12639 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12640 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12641 | FPTR2DPTR(void *, utf16_textfilter), |
12642 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12643 | if (count) { |
12644 | U8* tmps; | |
dea0fc0b | 12645 | I32 newlen; |
a02a5408 | 12646 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12647 | Copy(SvPVX_const(sv), tmps, old, char); |
12648 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12649 | SvCUR(sv) - old, &newlen); |
12650 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12651 | } |
1de9afcd RGS |
12652 | DEBUG_P({sv_dump(sv);}); |
12653 | return SvCUR(sv); | |
6e3aabd6 GS |
12654 | } |
12655 | ||
12656 | static I32 | |
acfe0abc | 12657 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12658 | { |
97aff369 | 12659 | dVAR; |
f54cb97a AL |
12660 | const STRLEN old = SvCUR(sv); |
12661 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12662 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12663 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12664 | FPTR2DPTR(void *, utf16rev_textfilter), |
12665 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12666 | if (count) { |
12667 | U8* tmps; | |
dea0fc0b | 12668 | I32 newlen; |
a02a5408 | 12669 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12670 | Copy(SvPVX_const(sv), tmps, old, char); |
12671 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12672 | SvCUR(sv) - old, &newlen); |
12673 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12674 | } |
1de9afcd | 12675 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12676 | return count; |
12677 | } | |
12678 | #endif | |
9f4817db | 12679 | |
f333445c JP |
12680 | /* |
12681 | Returns a pointer to the next character after the parsed | |
12682 | vstring, as well as updating the passed in sv. | |
12683 | ||
12684 | Function must be called like | |
12685 | ||
561b68a9 | 12686 | sv = newSV(5); |
f333445c JP |
12687 | s = scan_vstring(s,sv); |
12688 | ||
12689 | The sv should already be large enough to store the vstring | |
12690 | passed in, for performance reasons. | |
12691 | ||
12692 | */ | |
12693 | ||
12694 | char * | |
bfed75c6 | 12695 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 12696 | { |
97aff369 | 12697 | dVAR; |
bfed75c6 AL |
12698 | const char *pos = s; |
12699 | const char *start = s; | |
f333445c | 12700 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
12701 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
12702 | pos++; | |
f333445c JP |
12703 | if ( *pos != '.') { |
12704 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12705 | const char *next = pos; |
8fc7bb1c SM |
12706 | while (next < PL_bufend && isSPACE(*next)) |
12707 | ++next; | |
12708 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
12709 | /* return string not v-string */ |
12710 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12711 | return (char *)pos; |
f333445c JP |
12712 | } |
12713 | } | |
12714 | ||
12715 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12716 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12717 | |
d4c19fe8 AL |
12718 | if (*s == 'v') |
12719 | s++; /* get past 'v' */ | |
f333445c JP |
12720 | |
12721 | sv_setpvn(sv, "", 0); | |
12722 | ||
12723 | for (;;) { | |
d4c19fe8 | 12724 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12725 | U8 *tmpend; |
12726 | UV rev = 0; | |
d4c19fe8 AL |
12727 | const char *end = pos; |
12728 | UV mult = 1; | |
12729 | while (--end >= s) { | |
12730 | if (*end != '_') { | |
12731 | const UV orev = rev; | |
f333445c JP |
12732 | rev += (*end - '0') * mult; |
12733 | mult *= 10; | |
12734 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12735 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12736 | "Integer overflow in decimal number"); | |
12737 | } | |
12738 | } | |
12739 | #ifdef EBCDIC | |
12740 | if (rev > 0x7FFFFFFF) | |
12741 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12742 | #endif | |
12743 | /* Append native character for the rev point */ | |
12744 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12745 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12746 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12747 | SvUTF8_on(sv); | |
3e884cbf | 12748 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12749 | s = ++pos; |
12750 | else { | |
12751 | s = pos; | |
12752 | break; | |
12753 | } | |
3e884cbf | 12754 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12755 | pos++; |
12756 | } | |
12757 | SvPOK_on(sv); | |
12758 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12759 | SvRMAGICAL_on(sv); | |
12760 | } | |
73d840c0 | 12761 | return (char *)s; |
f333445c JP |
12762 | } |
12763 | ||
1da4ca5f NC |
12764 | /* |
12765 | * Local variables: | |
12766 | * c-indentation-style: bsd | |
12767 | * c-basic-offset: 4 | |
12768 | * indent-tabs-mode: t | |
12769 | * End: | |
12770 | * | |
37442d52 RGS |
12771 | * ex: set ts=8 sts=4 sw=4 noet: |
12772 | */ |