Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
e6906430 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
2c351e65 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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 | |
d3b6f988 GS |
26 | #define yychar PL_yychar |
27 | #define yylval PL_yylval | |
28 | ||
8c89da26 | 29 | static const char ident_too_long[] = "Identifier too long"; |
f4362cdc | 30 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 31 | |
acfe0abc | 32 | static void restore_rsfp(pTHX_ void *f); |
6e3aabd6 | 33 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
34 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
35 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 36 | #endif |
51371543 | 37 | |
fe656965 NC |
38 | #define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
39 | ||
9059aa12 LW |
40 | #define XFAKEBRACK 128 |
41 | #define XENUMMASK 127 | |
42 | ||
39e02b42 JH |
43 | #ifdef USE_UTF8_SCRIPTS |
44 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 45 | #else |
746b446a | 46 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 47 | #endif |
a0ed51b3 | 48 | |
61f0cdd9 | 49 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
50 | * 1999-02-27 mjd-perl-patch@plover.com */ |
51 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
52 | ||
bf4acbe4 GS |
53 | /* On MacOS, respect nonbreaking spaces */ |
54 | #ifdef MACOS_TRADITIONAL | |
55 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
56 | #else | |
57 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
58 | #endif | |
59 | ||
ffb4593c NT |
60 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
61 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
62 | * can get by with a single comparison (if the compiler is smart enough). |
63 | */ | |
64 | ||
fb73857a | 65 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
66 | ||
3f3939a9 NC |
67 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
68 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
69 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
70 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
71 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
72 | ||
73 | /* at end of code, eg "$x" followed by: */ | |
74 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
75 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
76 | ||
77 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
78 | string or after \E, $foo, etc */ | |
79 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
80 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
81 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
82 | ||
79072805 | 83 | |
f31bfe61 | 84 | #ifdef DEBUGGING |
fe20fd30 | 85 | static const char* const lex_state_names[] = { |
f31bfe61 NC |
86 | "KNOWNEXT", |
87 | "FORMLINE", | |
88 | "INTERPCONST", | |
89 | "INTERPCONCAT", | |
90 | "INTERPENDMAYBE", | |
91 | "INTERPEND", | |
92 | "INTERPSTART", | |
93 | "INTERPPUSH", | |
94 | "INTERPCASEMOD", | |
95 | "INTERPNORMAL", | |
96 | "NORMAL" | |
97 | }; | |
98 | #endif | |
99 | ||
79072805 LW |
100 | #ifdef ff_next |
101 | #undef ff_next | |
d48672a2 LW |
102 | #endif |
103 | ||
a1a0e61e | 104 | #ifdef USE_PURE_BISON |
dba4d153 JH |
105 | # ifndef YYMAXLEVEL |
106 | # define YYMAXLEVEL 100 | |
107 | # endif | |
20141f0e IRC |
108 | YYSTYPE* yylval_pointer[YYMAXLEVEL]; |
109 | int* yychar_pointer[YYMAXLEVEL]; | |
6f202aea | 110 | int yyactlevel = -1; |
22c35a8c GS |
111 | # undef yylval |
112 | # undef yychar | |
20141f0e IRC |
113 | # define yylval (*yylval_pointer[yyactlevel]) |
114 | # define yychar (*yychar_pointer[yyactlevel]) | |
115 | # define PERL_YYLEX_PARAM yylval_pointer[yyactlevel],yychar_pointer[yyactlevel] | |
4e553d73 | 116 | # undef yylex |
dba4d153 | 117 | # define yylex() Perl_yylex_r(aTHX_ yylval_pointer[yyactlevel],yychar_pointer[yyactlevel]) |
a1a0e61e TD |
118 | #endif |
119 | ||
79072805 | 120 | #include "keywords.h" |
fe14fcc3 | 121 | |
ffb4593c NT |
122 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
123 | ||
ae986130 LW |
124 | #ifdef CLINE |
125 | #undef CLINE | |
126 | #endif | |
57843af0 | 127 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 128 | |
fe656965 NC |
129 | #define SKIPSPACE0(s) skipspace(s) |
130 | #define SKIPSPACE1(s) skipspace(s) | |
131 | #define SKIPSPACE2(s,tsv) skipspace(s) | |
132 | #define PEEKSPACE(s) skipspace(s) | |
133 | ||
ffb4593c NT |
134 | /* |
135 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 136 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
137 | * |
138 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
139 | * OPERATOR : generic operator | |
140 | * AOPERATOR : assignment operator | |
141 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
142 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
143 | * PREREF : *EXPR where EXPR is not a simple identifier | |
144 | * TERM : expression term | |
145 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
146 | * FTST : file test operator | |
147 | * FUN0 : zero-argument function | |
2d2e263d | 148 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
149 | * BOop : bitwise or or xor |
150 | * BAop : bitwise and | |
151 | * SHop : shift operator | |
152 | * PWop : power operator | |
9cbb5ea2 | 153 | * PMop : pattern-matching operator |
ffb4593c NT |
154 | * Aop : addition-level operator |
155 | * Mop : multiplication-level operator | |
156 | * Eop : equality-testing operator | |
e5edeb50 | 157 | * Rop : relational operator <= != gt |
ffb4593c NT |
158 | * |
159 | * Also see LOP and lop() below. | |
160 | */ | |
161 | ||
998054bd | 162 | #ifdef DEBUGGING /* Serve -DT. */ |
2746ec50 | 163 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 164 | #else |
f31bfe61 | 165 | # define REPORT(retval) (retval) |
998054bd SC |
166 | #endif |
167 | ||
f31bfe61 NC |
168 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
169 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
170 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
171 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
172 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
173 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
174 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
175 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
176 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)UNIOP)) | |
177 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
178 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
179 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
180 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
181 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
182 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
183 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
184 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
185 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
186 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
187 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 188 | |
a687059c LW |
189 | /* This bit of chicanery makes a unary function followed by |
190 | * a parenthesis into a function with one argument, highest precedence. | |
191 | */ | |
23cd8e9f AL |
192 | #define UNI(f) { \ |
193 | yylval.ival = f; \ | |
194 | PL_expect = XTERM; \ | |
195 | PL_bufptr = s; \ | |
196 | PL_last_uni = PL_oldbufptr; \ | |
197 | PL_last_lop_op = f; \ | |
198 | if (*s == '(') \ | |
199 | return REPORT( (int)FUNC1 ); \ | |
fe656965 | 200 | s = PEEKSPACE(s); \ |
23cd8e9f AL |
201 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
202 | } | |
203 | ||
204 | #define UNIBRACK(f) { \ | |
205 | yylval.ival = f; \ | |
206 | PL_bufptr = s; \ | |
207 | PL_last_uni = PL_oldbufptr; \ | |
208 | if (*s == '(') \ | |
209 | return REPORT( (int)FUNC1 ); \ | |
fe656965 | 210 | s = PEEKSPACE(s); \ |
23cd8e9f AL |
211 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
212 | } | |
79072805 | 213 | |
9f68db38 | 214 | /* grandfather return to old style */ |
3280af22 | 215 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 216 | |
8fa7f367 JH |
217 | #ifdef DEBUGGING |
218 | ||
f31bfe61 NC |
219 | /* how to interpret the yylval associated with the token */ |
220 | enum token_type { | |
221 | TOKENTYPE_NONE, | |
222 | TOKENTYPE_IVAL, | |
223 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
224 | TOKENTYPE_PVAL, | |
225 | TOKENTYPE_OPVAL, | |
226 | TOKENTYPE_GVVAL | |
227 | }; | |
228 | ||
e4720ea4 AL |
229 | static struct debug_tokens { |
230 | const int token; | |
231 | enum token_type type; | |
232 | const char *name; | |
233 | } const debug_tokens[] = | |
9041c2e3 | 234 | { |
f31bfe61 NC |
235 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
236 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
237 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
238 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
239 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
240 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
241 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
242 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
243 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
244 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
245 | { DO, TOKENTYPE_NONE, "DO" }, | |
246 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
247 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
248 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
249 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
250 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
251 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
252 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
253 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
254 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
255 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
256 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
257 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
258 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, | |
259 | { IF, TOKENTYPE_IVAL, "IF" }, | |
260 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
261 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
262 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
263 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
264 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
265 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
266 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
267 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
268 | { MY, TOKENTYPE_IVAL, "MY" }, | |
269 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
270 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
271 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
272 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
273 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
274 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
275 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
276 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
277 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
278 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
279 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
280 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
281 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
282 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
283 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
284 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
285 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
286 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
287 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
288 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
289 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
290 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
291 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
292 | { USE, TOKENTYPE_IVAL, "USE" }, | |
293 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, | |
294 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
8e7b0921 | 295 | { 0, TOKENTYPE_NONE, NULL } |
f31bfe61 NC |
296 | }; |
297 | ||
298 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 299 | |
f31bfe61 | 300 | STATIC int |
2746ec50 | 301 | S_tokereport(pTHX_ I32 rv) |
f31bfe61 NC |
302 | { |
303 | if (DEBUG_T_TEST) { | |
0e2d6244 | 304 | const char *name = NULL; |
f31bfe61 | 305 | enum token_type type = TOKENTYPE_NONE; |
24c2fff4 | 306 | const struct debug_tokens *p; |
d7559646 | 307 | SV* const report = newSVpvs("<== "); |
f31bfe61 NC |
308 | |
309 | for (p = debug_tokens; p->token; p++) { | |
310 | if (p->token == (int)rv) { | |
311 | name = p->name; | |
312 | type = p->type; | |
313 | break; | |
314 | } | |
315 | } | |
316 | if (name) | |
317 | Perl_sv_catpvf(aTHX_ report, "%s", name); | |
318 | else if ((char)rv > ' ' && (char)rv < '~') | |
319 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
320 | else if (!rv) | |
d7559646 | 321 | sv_catpvs(report, "EOF"); |
f31bfe61 NC |
322 | else |
323 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
324 | switch (type) { | |
325 | case TOKENTYPE_NONE: | |
326 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
327 | break; | |
328 | case TOKENTYPE_IVAL: | |
329 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", yylval.ival); | |
330 | break; | |
331 | case TOKENTYPE_OPNUM: | |
332 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
333 | PL_op_name[yylval.ival]); | |
334 | break; | |
335 | case TOKENTYPE_PVAL: | |
336 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
337 | break; | |
338 | case TOKENTYPE_OPVAL: | |
3f3939a9 | 339 | if (yylval.opval) { |
c870331e | 340 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
f31bfe61 | 341 | PL_op_name[yylval.opval->op_type]); |
3f3939a9 NC |
342 | if (yylval.opval->op_type == OP_CONST) { |
343 | Perl_sv_catpvf(aTHX_ report, " %s", | |
344 | SvPEEK(cSVOPx_sv(yylval.opval))); | |
345 | } | |
346 | ||
347 | } | |
c870331e | 348 | else |
d7559646 | 349 | sv_catpvs(report, "(opval=null)"); |
f31bfe61 NC |
350 | break; |
351 | } | |
3f3939a9 | 352 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
f31bfe61 NC |
353 | }; |
354 | return (int)rv; | |
998054bd SC |
355 | } |
356 | ||
3f3939a9 NC |
357 | |
358 | /* print the buffer with suitable escapes */ | |
359 | ||
360 | STATIC void | |
361 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
362 | { | |
d7559646 | 363 | SV* const tmp = newSVpvs(""); |
ef9ec799 NC |
364 | PerlIO_printf(Perl_debug_log, fmt, |
365 | pv_display(tmp, (char *)s, strlen(s), 0, 60)); | |
3f3939a9 NC |
366 | SvREFCNT_dec(tmp); |
367 | } | |
368 | ||
8fa7f367 JH |
369 | #endif |
370 | ||
ffb4593c NT |
371 | /* |
372 | * S_ao | |
373 | * | |
374 | * This subroutine detects &&= and ||= and turns an ANDAND or OROR | |
375 | * into an OP_ANDASSIGN or OP_ORASSIGN | |
376 | */ | |
377 | ||
76e3520e | 378 | STATIC int |
cea2e8a9 | 379 | S_ao(pTHX_ int toketype) |
a0d0e21e | 380 | { |
3280af22 NIS |
381 | if (*PL_bufptr == '=') { |
382 | PL_bufptr++; | |
a0d0e21e LW |
383 | if (toketype == ANDAND) |
384 | yylval.ival = OP_ANDASSIGN; | |
385 | else if (toketype == OROR) | |
386 | yylval.ival = OP_ORASSIGN; | |
387 | toketype = ASSIGNOP; | |
388 | } | |
389 | return toketype; | |
390 | } | |
391 | ||
ffb4593c NT |
392 | /* |
393 | * S_no_op | |
394 | * When Perl expects an operator and finds something else, no_op | |
395 | * prints the warning. It always prints "<something> found where | |
396 | * operator expected. It prints "Missing semicolon on previous line?" | |
397 | * if the surprise occurs at the start of the line. "do you need to | |
398 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
399 | * where the compiler doesn't know if foo is a method call or a function. | |
400 | * It prints "Missing operator before end of line" if there's nothing | |
401 | * after the missing operator, or "... before <...>" if there is something | |
402 | * after the missing operator. | |
403 | */ | |
404 | ||
76e3520e | 405 | STATIC void |
a00f3e00 | 406 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 407 | { |
a2592645 NC |
408 | char * const oldbp = PL_bufptr; |
409 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 410 | |
1189a94a GS |
411 | if (!s) |
412 | s = oldbp; | |
07c798fb | 413 | else |
1189a94a | 414 | PL_bufptr = s; |
cea2e8a9 | 415 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
c77beb56 NC |
416 | if (ckWARN_d(WARN_SYNTAX)) { |
417 | if (is_first) | |
418 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
419 | "\t(Missing semicolon on previous line?)\n"); | |
420 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
24c2fff4 | 421 | const char *t; |
8e7b0921 AL |
422 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
423 | NOOP; | |
c77beb56 NC |
424 | if (t < PL_bufptr && isSPACE(*t)) |
425 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
426 | "\t(Do you need to predeclare %.*s?)\n", | |
78fd745e | 427 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
c77beb56 NC |
428 | } |
429 | else { | |
430 | assert(s >= oldbp); | |
431 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
78fd745e | 432 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
c77beb56 | 433 | } |
07c798fb | 434 | } |
3280af22 | 435 | PL_bufptr = oldbp; |
8990e307 LW |
436 | } |
437 | ||
ffb4593c NT |
438 | /* |
439 | * S_missingterm | |
440 | * Complain about missing quote/regexp/heredoc terminator. | |
43b2f713 | 441 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
442 | * If we're in a delimited string and the delimiter is a control |
443 | * character, it's reformatted into a two-char sequence like ^C. | |
444 | * This is fatal. | |
445 | */ | |
446 | ||
76e3520e | 447 | STATIC void |
cea2e8a9 | 448 | S_missingterm(pTHX_ char *s) |
8990e307 LW |
449 | { |
450 | char tmpbuf[3]; | |
451 | char q; | |
452 | if (s) { | |
a2592645 | 453 | char * const nl = strrchr(s,'\n'); |
d2719217 | 454 | if (nl) |
8990e307 LW |
455 | *nl = '\0'; |
456 | } | |
9d116dd7 JH |
457 | else if ( |
458 | #ifdef EBCDIC | |
459 | iscntrl(PL_multi_close) | |
460 | #else | |
461 | PL_multi_close < 32 || PL_multi_close == 127 | |
462 | #endif | |
463 | ) { | |
8990e307 | 464 | *tmpbuf = '^'; |
3bad88ff | 465 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
466 | tmpbuf[2] = '\0'; |
467 | s = tmpbuf; | |
468 | } | |
469 | else { | |
eb160463 | 470 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
471 | tmpbuf[1] = '\0'; |
472 | s = tmpbuf; | |
473 | } | |
474 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 475 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 476 | } |
79072805 | 477 | |
ffb4593c NT |
478 | /* |
479 | * Perl_deprecate | |
ffb4593c NT |
480 | */ |
481 | ||
79072805 | 482 | void |
864dbfa3 | 483 | Perl_deprecate(pTHX_ char *s) |
a0d0e21e | 484 | { |
599cee73 | 485 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 486 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
487 | } |
488 | ||
12bcd1a6 PM |
489 | void |
490 | Perl_deprecate_old(pTHX_ char *s) | |
491 | { | |
492 | /* This function should NOT be called for any new deprecated warnings */ | |
493 | /* Use Perl_deprecate instead */ | |
494 | /* */ | |
495 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
496 | /* warnings category hierarchy. The "deprecated" category used to */ | |
497 | /* live under the "syntax" category. It is now a top-level category */ | |
498 | /* in its own right. */ | |
499 | ||
500 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
a00f3e00 | 501 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
502 | "Use of %s is deprecated", s); |
503 | } | |
504 | ||
ffb4593c | 505 | /* |
9cbb5ea2 GS |
506 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
507 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
508 | */ |
509 | ||
c39cd008 GS |
510 | #ifdef PERL_CR_FILTER |
511 | static void | |
512 | strip_return(SV *sv) | |
513 | { | |
5e7e76a3 | 514 | register const char *s = SvPVX_const(sv); |
a2592645 | 515 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
516 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
517 | while (s < e) { | |
518 | if (*s++ == '\r' && *s == '\n') { | |
519 | /* hit a CR-LF, need to copy the rest */ | |
520 | register char *d = s - 1; | |
521 | *d++ = *s++; | |
522 | while (s < e) { | |
523 | if (*s == '\r' && s[1] == '\n') | |
524 | s++; | |
525 | *d++ = *s++; | |
526 | } | |
527 | SvCUR(sv) -= s - d; | |
528 | return; | |
529 | } | |
530 | } | |
531 | } | |
a868473f | 532 | |
76e3520e | 533 | STATIC I32 |
c39cd008 | 534 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 535 | { |
24c2fff4 | 536 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
537 | if (count > 0 && !maxlen) |
538 | strip_return(sv); | |
539 | return count; | |
a868473f NIS |
540 | } |
541 | #endif | |
542 | ||
ffb4593c NT |
543 | /* |
544 | * Perl_lex_start | |
9cbb5ea2 GS |
545 | * Initialize variables. Uses the Perl save_stack to save its state (for |
546 | * recursive calls to the parser). | |
ffb4593c NT |
547 | */ |
548 | ||
a0d0e21e | 549 | void |
864dbfa3 | 550 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 551 | { |
71a0dd65 | 552 | const char *s; |
8990e307 LW |
553 | STRLEN len; |
554 | ||
3280af22 NIS |
555 | SAVEI32(PL_lex_dojoin); |
556 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
557 | SAVEI32(PL_lex_casemods); |
558 | SAVEI32(PL_lex_starts); | |
559 | SAVEI32(PL_lex_state); | |
7766f137 | 560 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 561 | SAVEI32(PL_lex_inwhat); |
18b09519 GS |
562 | if (PL_lex_state == LEX_KNOWNEXT) { |
563 | I32 toke = PL_nexttoke; | |
564 | while (--toke >= 0) { | |
565 | SAVEI32(PL_nexttype[toke]); | |
566 | SAVEVPTR(PL_nextval[toke]); | |
567 | } | |
568 | SAVEI32(PL_nexttoke); | |
18b09519 | 569 | } |
57843af0 | 570 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
571 | SAVEPPTR(PL_bufptr); |
572 | SAVEPPTR(PL_bufend); | |
573 | SAVEPPTR(PL_oldbufptr); | |
574 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
575 | SAVEPPTR(PL_last_lop); |
576 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
577 | SAVEPPTR(PL_linestart); |
578 | SAVESPTR(PL_linestr); | |
bda19f49 JH |
579 | SAVEGENERICPV(PL_lex_brackstack); |
580 | SAVEGENERICPV(PL_lex_casestack); | |
c76ac1ee | 581 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
3280af22 NIS |
582 | SAVESPTR(PL_lex_stuff); |
583 | SAVEI32(PL_lex_defer); | |
09bef843 | 584 | SAVEI32(PL_sublex_info.sub_inwhat); |
3280af22 | 585 | SAVESPTR(PL_lex_repl); |
bebdddfc GS |
586 | SAVEINT(PL_expect); |
587 | SAVEINT(PL_lex_expect); | |
3280af22 NIS |
588 | |
589 | PL_lex_state = LEX_NORMAL; | |
590 | PL_lex_defer = 0; | |
591 | PL_expect = XSTATE; | |
592 | PL_lex_brackets = 0; | |
cd7a8267 JC |
593 | Newx(PL_lex_brackstack, 120, char); |
594 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
595 | PL_lex_casemods = 0; |
596 | *PL_lex_casestack = '\0'; | |
597 | PL_lex_dojoin = 0; | |
598 | PL_lex_starts = 0; | |
0e2d6244 SS |
599 | PL_lex_stuff = NULL; |
600 | PL_lex_repl = NULL; | |
3280af22 | 601 | PL_lex_inpat = 0; |
76be56bc | 602 | PL_nexttoke = 0; |
3280af22 | 603 | PL_lex_inwhat = 0; |
09bef843 | 604 | PL_sublex_info.sub_inwhat = 0; |
cbee5a1c JH |
605 | if (line) { |
606 | s = SvPV_const(line, len); | |
607 | } else { | |
608 | len = 0; | |
609 | } | |
610 | if (!len) { | |
611 | PL_linestr = newSVpvs("\n;"); | |
612 | } else if (SvREADONLY(line) || s[len-1] != ';') { | |
613 | PL_linestr = newSVsv(line); | |
614 | if (s[len-1] != ';') | |
78a6e022 | 615 | sv_catpvs(PL_linestr, "\n;"); |
cbee5a1c JH |
616 | } else { |
617 | SvTEMP_off(line); | |
618 | SvREFCNT_inc_simple_void_NN(line); | |
619 | PL_linestr = line; | |
8990e307 | 620 | } |
3ec6e497 NC |
621 | /* PL_linestr needs to survive until end of scope, not just the next |
622 | FREETMPS. See changes 17505 and 17546 which fixed the symptoms only. */ | |
3ec6e497 | 623 | SAVEFREESV(PL_linestr); |
3280af22 NIS |
624 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
625 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
0e2d6244 | 626 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 627 | PL_rsfp = 0; |
79072805 | 628 | } |
a687059c | 629 | |
ffb4593c NT |
630 | /* |
631 | * Perl_lex_end | |
9cbb5ea2 GS |
632 | * Finalizer for lexing operations. Must be called when the parser is |
633 | * done with the lexer. | |
ffb4593c NT |
634 | */ |
635 | ||
463ee0b2 | 636 | void |
864dbfa3 | 637 | Perl_lex_end(pTHX) |
463ee0b2 | 638 | { |
3280af22 | 639 | PL_doextract = FALSE; |
463ee0b2 LW |
640 | } |
641 | ||
ffb4593c NT |
642 | /* |
643 | * S_incline | |
644 | * This subroutine has nothing to do with tilting, whether at windmills | |
645 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 646 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 647 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
648 | * # line 500 "foo.pm" |
649 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
650 | */ |
651 | ||
76e3520e | 652 | STATIC void |
cea2e8a9 | 653 | S_incline(pTHX_ char *s) |
463ee0b2 LW |
654 | { |
655 | char *t; | |
656 | char *n; | |
73659bf1 | 657 | char *e; |
463ee0b2 | 658 | char ch; |
463ee0b2 | 659 | |
57843af0 | 660 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
661 | if (*s++ != '#') |
662 | return; | |
43b2f713 AL |
663 | while (SPACE_OR_TAB(*s)) |
664 | s++; | |
73659bf1 GS |
665 | if (strnEQ(s, "line", 4)) |
666 | s += 4; | |
667 | else | |
668 | return; | |
084592ab | 669 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 670 | s++; |
4e553d73 | 671 | else |
73659bf1 | 672 | return; |
43b2f713 AL |
673 | while (SPACE_OR_TAB(*s)) |
674 | s++; | |
463ee0b2 LW |
675 | if (!isDIGIT(*s)) |
676 | return; | |
43b2f713 | 677 | |
463ee0b2 LW |
678 | n = s; |
679 | while (isDIGIT(*s)) | |
680 | s++; | |
bf4acbe4 | 681 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 682 | s++; |
73659bf1 | 683 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 684 | s++; |
73659bf1 GS |
685 | e = t + 1; |
686 | } | |
463ee0b2 | 687 | else { |
8e7b0921 AL |
688 | t = s; |
689 | while (!isSPACE(*t)) | |
690 | t++; | |
73659bf1 | 691 | e = t; |
463ee0b2 | 692 | } |
bf4acbe4 | 693 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
694 | e++; |
695 | if (*e != '\n' && *e != '\0') | |
696 | return; /* false alarm */ | |
697 | ||
463ee0b2 LW |
698 | ch = *t; |
699 | *t = '\0'; | |
f4dd75d9 | 700 | if (t - s > 0) { |
3f3939a9 | 701 | #ifndef USE_ITHREADS |
1a9219e7 | 702 | const char * const cf = CopFILE(PL_curcop); |
aae6d3c0 NC |
703 | STRLEN tmplen = cf ? strlen(cf) : 0; |
704 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
3f3939a9 NC |
705 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
706 | * to *{"::_<newfilename"} */ | |
707 | char smallbuf[256], smallbuf2[256]; | |
708 | char *tmpbuf, *tmpbuf2; | |
709 | GV **gvp, *gv2; | |
3f3939a9 NC |
710 | STRLEN tmplen2 = strlen(s); |
711 | if (tmplen + 3 < sizeof smallbuf) | |
712 | tmpbuf = smallbuf; | |
713 | else | |
714 | Newx(tmpbuf, tmplen + 3, char); | |
715 | if (tmplen2 + 3 < sizeof smallbuf2) | |
716 | tmpbuf2 = smallbuf2; | |
717 | else | |
718 | Newx(tmpbuf2, tmplen2 + 3, char); | |
719 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
720 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
721 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
722 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
723 | ++tmplen; ++tmplen2; | |
724 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); | |
725 | if (gvp) { | |
726 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
d409ca69 | 727 | if (!isGV(gv2)) { |
3f3939a9 | 728 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
d409ca69 YO |
729 | /* adjust ${"::_<newfilename"} to store the new file name */ |
730 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
731 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
732 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
733 | } | |
3f3939a9 NC |
734 | } |
735 | if (tmpbuf != smallbuf) Safefree(tmpbuf); | |
736 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
737 | } | |
738 | #endif | |
05ec9bb3 | 739 | CopFILE_free(PL_curcop); |
57843af0 | 740 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 741 | } |
463ee0b2 | 742 | *t = ch; |
57843af0 | 743 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
744 | } |
745 | ||
fe656965 | 746 | |
3f3e5b8d NC |
747 | STATIC void |
748 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *buf, STRLEN len) | |
749 | { | |
750 | AV *av = CopFILEAVx(PL_curcop); | |
751 | if (av) { | |
752 | SV * const sv = newSV(0); | |
753 | sv_upgrade(sv, SVt_PVMG); | |
754 | if (orig_sv) | |
755 | sv_setsv(sv, orig_sv); | |
756 | else | |
757 | sv_setpvn(sv, buf, len); | |
758 | (void)SvIOK_on(sv); | |
759 | SvIV_set(sv, 0); | |
760 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
761 | } | |
762 | } | |
763 | ||
ffb4593c NT |
764 | /* |
765 | * S_skipspace | |
766 | * Called to gobble the appropriate amount and type of whitespace. | |
767 | * Skips comments as well. | |
768 | */ | |
769 | ||
76e3520e | 770 | STATIC char * |
cea2e8a9 | 771 | S_skipspace(pTHX_ register char *s) |
a687059c | 772 | { |
3280af22 | 773 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 774 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 LW |
775 | s++; |
776 | return s; | |
777 | } | |
778 | for (;;) { | |
fd049845 | 779 | STRLEN prevlen; |
09bef843 | 780 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 781 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
782 | while (s < PL_bufend && isSPACE(*s)) { |
783 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
784 | incline(s); | |
785 | } | |
ffb4593c NT |
786 | |
787 | /* comment */ | |
3280af22 NIS |
788 | if (s < PL_bufend && *s == '#') { |
789 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 790 | s++; |
60e6418e | 791 | if (s < PL_bufend) { |
463ee0b2 | 792 | s++; |
60e6418e GS |
793 | if (PL_in_eval && !PL_rsfp) { |
794 | incline(s); | |
795 | continue; | |
796 | } | |
797 | } | |
463ee0b2 | 798 | } |
ffb4593c NT |
799 | |
800 | /* only continue to recharge the buffer if we're at the end | |
801 | * of the buffer, we're not reading from a source filter, and | |
802 | * we're in normal lexing mode | |
803 | */ | |
09bef843 SB |
804 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
805 | PL_lex_state == LEX_FORMLINE) | |
463ee0b2 | 806 | return s; |
ffb4593c NT |
807 | |
808 | /* try to recharge the buffer */ | |
9cbb5ea2 | 809 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
0e2d6244 | 810 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 GS |
811 | { |
812 | /* end of file. Add on the -p or -n magic */ | |
29652248 NC |
813 | if (PL_minus_p) { |
814 | sv_setpv(PL_linestr, | |
815 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
3280af22 | 816 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 817 | } |
29652248 NC |
818 | else if (PL_minus_n) { |
819 | sv_setpvn(PL_linestr, ";}", 2); | |
820 | PL_minus_n = 0; | |
821 | } | |
a0d0e21e | 822 | else |
29652248 | 823 | sv_setpvn(PL_linestr,";", 1); |
ffb4593c NT |
824 | |
825 | /* reset variables for next time we lex */ | |
9cbb5ea2 GS |
826 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
827 | = SvPVX(PL_linestr); | |
3280af22 | 828 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
0e2d6244 | 829 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
830 | |
831 | /* Close the filehandle. Could be from -P preprocessor, | |
832 | * STDIN, or a regular file. If we were reading code from | |
833 | * STDIN (because the commandline held no -e or filename) | |
834 | * then we don't close it, we reset it so the code can | |
835 | * read from STDIN too. | |
836 | */ | |
837 | ||
3280af22 NIS |
838 | if (PL_preprocess && !PL_in_eval) |
839 | (void)PerlProc_pclose(PL_rsfp); | |
840 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
841 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 842 | else |
3280af22 | 843 | (void)PerlIO_close(PL_rsfp); |
0e2d6244 | 844 | PL_rsfp = NULL; |
463ee0b2 LW |
845 | return s; |
846 | } | |
ffb4593c NT |
847 | |
848 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
849 | /* make corresponding updates to old pointers, for yyerror() */ |
850 | oldprevlen = PL_oldbufptr - PL_bufend; | |
851 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
852 | if (PL_last_uni) | |
853 | oldunilen = PL_last_uni - PL_bufend; | |
854 | if (PL_last_lop) | |
855 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
856 | PL_linestart = PL_bufptr = s + prevlen; |
857 | PL_bufend = s + SvCUR(PL_linestr); | |
858 | s = PL_bufptr; | |
09bef843 SB |
859 | PL_oldbufptr = s + oldprevlen; |
860 | PL_oldoldbufptr = s + oldoldprevlen; | |
861 | if (PL_last_uni) | |
862 | PL_last_uni = s + oldunilen; | |
863 | if (PL_last_lop) | |
864 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 865 | incline(s); |
ffb4593c NT |
866 | |
867 | /* debugger active and we're not compiling the debugger code, | |
868 | * so store the line into the debugger's array of lines | |
869 | */ | |
3f3e5b8d NC |
870 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
871 | update_debugger_info(NULL, PL_bufptr, PL_bufend - PL_bufptr); | |
463ee0b2 | 872 | } |
a687059c | 873 | } |
378cc40b | 874 | |
ffb4593c NT |
875 | /* |
876 | * S_check_uni | |
877 | * Check the unary operators to ensure there's no ambiguity in how they're | |
878 | * used. An ambiguous piece of code would be: | |
879 | * rand + 5 | |
880 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
881 | * the +5 is its argument. | |
882 | */ | |
883 | ||
76e3520e | 884 | STATIC void |
cea2e8a9 | 885 | S_check_uni(pTHX) |
ba106d47 | 886 | { |
43b2f713 AL |
887 | const char *s; |
888 | const char *t; | |
2f3197b3 | 889 | |
3280af22 | 890 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 891 | return; |
3280af22 NIS |
892 | while (isSPACE(*PL_last_uni)) |
893 | PL_last_uni++; | |
8e7b0921 AL |
894 | s = PL_last_uni; |
895 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
896 | s++; | |
3280af22 | 897 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 898 | return; |
8916b559 | 899 | |
0453d815 | 900 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 901 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
a28a866d NC |
902 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
903 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 904 | } |
2f3197b3 LW |
905 | } |
906 | ||
ffb4593c NT |
907 | /* |
908 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
909 | * with a subroutine, S_lop() for which LOP is just another name. | |
910 | */ | |
911 | ||
a0d0e21e LW |
912 | #define LOP(f,x) return lop(f,x,s) |
913 | ||
ffb4593c NT |
914 | /* |
915 | * S_lop | |
916 | * Build a list operator (or something that might be one). The rules: | |
917 | * - if we have a next token, then it's a list operator [why?] | |
918 | * - if the next thing is an opening paren, then it's a function | |
919 | * - else it's a list operator | |
920 | */ | |
921 | ||
76e3520e | 922 | STATIC I32 |
a0be28da | 923 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 924 | { |
79072805 | 925 | yylval.ival = f; |
35c8bce7 | 926 | CLINE; |
3280af22 NIS |
927 | PL_expect = x; |
928 | PL_bufptr = s; | |
929 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 930 | PL_last_lop_op = (OPCODE)f; |
3280af22 | 931 | if (PL_nexttoke) |
f31bfe61 | 932 | return REPORT(LSTOP); |
79072805 | 933 | if (*s == '(') |
f31bfe61 | 934 | return REPORT(FUNC); |
fe656965 | 935 | s = PEEKSPACE(s); |
79072805 | 936 | if (*s == '(') |
f31bfe61 | 937 | return REPORT(FUNC); |
79072805 | 938 | else |
f31bfe61 | 939 | return REPORT(LSTOP); |
79072805 LW |
940 | } |
941 | ||
ffb4593c NT |
942 | /* |
943 | * S_force_next | |
9cbb5ea2 | 944 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 945 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 GS |
946 | * to know what token to return the next time the lexer is called. Caller |
947 | * will need to set PL_nextval[], and possibly PL_expect to ensure the lexer | |
948 | * handles the token correctly. | |
ffb4593c NT |
949 | */ |
950 | ||
4e553d73 | 951 | STATIC void |
cea2e8a9 | 952 | S_force_next(pTHX_ I32 type) |
79072805 | 953 | { |
3280af22 NIS |
954 | PL_nexttype[PL_nexttoke] = type; |
955 | PL_nexttoke++; | |
956 | if (PL_lex_state != LEX_KNOWNEXT) { | |
957 | PL_lex_defer = PL_lex_state; | |
958 | PL_lex_expect = PL_expect; | |
959 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 LW |
960 | } |
961 | } | |
962 | ||
057b822e NC |
963 | STATIC SV * |
964 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
965 | { | |
966 | SV *sv = newSVpvn(start,len); | |
967 | if (UTF && !IN_BYTES && is_utf8_string((U8*)start, len)) | |
968 | SvUTF8_on(sv); | |
969 | return sv; | |
970 | } | |
971 | ||
ffb4593c NT |
972 | /* |
973 | * S_force_word | |
974 | * When the lexer knows the next thing is a word (for instance, it has | |
975 | * just seen -> and it knows that the next char is a word char, then | |
976 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
977 | * | |
978 | * Arguments: | |
b1b65b59 | 979 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
980 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
981 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
982 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
983 | * int allow_pack : if true, : characters will also be allowed (require, | |
984 | * use, etc. do this) | |
9cbb5ea2 | 985 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
986 | */ |
987 | ||
76e3520e | 988 | STATIC char * |
cea2e8a9 | 989 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 990 | { |
463ee0b2 LW |
991 | register char *s; |
992 | STRLEN len; | |
4e553d73 | 993 | |
fe656965 | 994 | start = SKIPSPACE1(start); |
463ee0b2 | 995 | s = start; |
7e2040f0 | 996 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 997 | (allow_pack && *s == ':') || |
15f0808c | 998 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 999 | { |
3280af22 NIS |
1000 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
1001 | if (check_keyword && keyword(PL_tokenbuf, len)) | |
463ee0b2 LW |
1002 | return start; |
1003 | if (token == METHOD) { | |
fe656965 | 1004 | s = SKIPSPACE1(s); |
463ee0b2 | 1005 | if (*s == '(') |
3280af22 | 1006 | PL_expect = XTERM; |
463ee0b2 | 1007 | else { |
3280af22 | 1008 | PL_expect = XOPERATOR; |
463ee0b2 | 1009 | } |
79072805 | 1010 | } |
fe656965 | 1011 | NEXTVAL_NEXTTOKE.opval |
057b822e NC |
1012 | = (OP*)newSVOP(OP_CONST,0, |
1013 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
fe656965 | 1014 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1015 | force_next(token); |
1016 | } | |
1017 | return s; | |
1018 | } | |
1019 | ||
ffb4593c NT |
1020 | /* |
1021 | * S_force_ident | |
9cbb5ea2 | 1022 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1023 | * text only contains the "foo" portion. The first argument is a pointer |
1024 | * to the "foo", and the second argument is the type symbol to prefix. | |
1025 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1026 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1027 | */ |
1028 | ||
76e3520e | 1029 | STATIC void |
a00f3e00 | 1030 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1031 | { |
8e7b0921 | 1032 | if (*s) { |
e4720ea4 AL |
1033 | const STRLEN len = strlen(s); |
1034 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
fe656965 | 1035 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1036 | force_next(WORD); |
748a9306 | 1037 | if (kind) { |
11343788 | 1038 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1039 | /* XXX see note in pp_entereval() for why we forgo typo |
1040 | warnings if the symbol must be introduced in an eval. | |
1041 | GSAR 96-10-12 */ | |
e4720ea4 AL |
1042 | gv_fetchpvn_flags(s, len, |
1043 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1044 | : GV_ADD, | |
1045 | kind == '$' ? SVt_PV : | |
1046 | kind == '@' ? SVt_PVAV : | |
1047 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1048 | SVt_PVGV |
e4720ea4 | 1049 | ); |
748a9306 | 1050 | } |
79072805 LW |
1051 | } |
1052 | } | |
1053 | ||
1571675a GS |
1054 | NV |
1055 | Perl_str_to_version(pTHX_ SV *sv) | |
1056 | { | |
1057 | NV retval = 0.0; | |
1058 | NV nshift = 1.0; | |
1059 | STRLEN len; | |
71a0dd65 | 1060 | const char *start = SvPV_const(sv,len); |
a2592645 | 1061 | const char * const end = start + len; |
547d29e4 | 1062 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1063 | while (start < end) { |
ba210ebe | 1064 | STRLEN skip; |
1571675a GS |
1065 | UV n; |
1066 | if (utf) | |
9041c2e3 | 1067 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1068 | else { |
1069 | n = *(U8*)start; | |
1070 | skip = 1; | |
1071 | } | |
1072 | retval += ((NV)n)/nshift; | |
1073 | start += skip; | |
1074 | nshift *= 1000; | |
1075 | } | |
1076 | return retval; | |
1077 | } | |
1078 | ||
4e553d73 | 1079 | /* |
ffb4593c NT |
1080 | * S_force_version |
1081 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1082 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1083 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1084 | * must use an alternative parsing method). | |
ffb4593c NT |
1085 | */ |
1086 | ||
76e3520e | 1087 | STATIC char * |
e759cc13 | 1088 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1089 | { |
5900599a | 1090 | OP *version = NULL; |
44dcb63b | 1091 | char *d; |
89bfa8cd | 1092 | |
fe656965 | 1093 | s = SKIPSPACE1(s); |
89bfa8cd | 1094 | |
44dcb63b | 1095 | d = s; |
dd629d5b | 1096 | if (*d == 'v') |
44dcb63b | 1097 | d++; |
44dcb63b | 1098 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1099 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1100 | d++; | |
9f3d182e | 1101 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1102 | SV *ver; |
b73d6f50 | 1103 | s = scan_num(s, &yylval); |
89bfa8cd | 1104 | version = yylval.opval; |
dd629d5b GS |
1105 | ver = cSVOPx(version)->op_sv; |
1106 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
155aba94 | 1107 | (void)SvUPGRADE(ver, SVt_PVNV); |
0da6cfda | 1108 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1109 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1110 | } |
89bfa8cd | 1111 | } |
e759cc13 RGS |
1112 | else if (guessing) |
1113 | return s; | |
89bfa8cd | 1114 | } |
1115 | ||
1116 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
fe656965 | 1117 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1118 | force_next(WORD); |
89bfa8cd | 1119 | |
e759cc13 | 1120 | return s; |
89bfa8cd | 1121 | } |
1122 | ||
ffb4593c NT |
1123 | /* |
1124 | * S_tokeq | |
1125 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1126 | * chunk, up to end of string or a backslash. It may make a new | |
1127 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1128 | * turns \\ into \. | |
1129 | */ | |
1130 | ||
76e3520e | 1131 | STATIC SV * |
cea2e8a9 | 1132 | S_tokeq(pTHX_ SV *sv) |
79072805 LW |
1133 | { |
1134 | register char *s; | |
1135 | register char *send; | |
1136 | register char *d; | |
b3ac6de7 IZ |
1137 | STRLEN len = 0; |
1138 | SV *pv = sv; | |
79072805 LW |
1139 | |
1140 | if (!SvLEN(sv)) | |
b3ac6de7 | 1141 | goto finish; |
79072805 | 1142 | |
a0d0e21e | 1143 | s = SvPV_force(sv, len); |
21a311ee | 1144 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1145 | goto finish; |
463ee0b2 | 1146 | send = s + len; |
79072805 LW |
1147 | while (s < send && *s != '\\') |
1148 | s++; | |
1149 | if (s == send) | |
b3ac6de7 | 1150 | goto finish; |
79072805 | 1151 | d = s; |
be4731d2 | 1152 | if ( PL_hints & HINT_NEW_STRING ) { |
5e7e76a3 | 1153 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1154 | if (SvUTF8(sv)) |
1155 | SvUTF8_on(pv); | |
1156 | } | |
79072805 LW |
1157 | while (s < send) { |
1158 | if (*s == '\\') { | |
a0d0e21e | 1159 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1160 | s++; /* all that, just for this */ |
1161 | } | |
1162 | *d++ = *s++; | |
1163 | } | |
1164 | *d = '\0'; | |
5e7e76a3 | 1165 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1166 | finish: |
3280af22 | 1167 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1168 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1169 | return sv; |
1170 | } | |
1171 | ||
ffb4593c NT |
1172 | /* |
1173 | * Now come three functions related to double-quote context, | |
1174 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1175 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1176 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1177 | * to handle functions and concatenation. | |
1178 | * They assume that whoever calls them will be setting up a fake | |
1179 | * join call, because each subthing puts a ',' after it. This lets | |
1180 | * "lower \luPpEr" | |
1181 | * become | |
1182 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1183 | * | |
1184 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1185 | * arguments and join's arguments are created or not). | |
1186 | */ | |
1187 | ||
1188 | /* | |
1189 | * S_sublex_start | |
1190 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1191 | * | |
1192 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1193 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1194 | * | |
1195 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1196 | * | |
1197 | * Everything else becomes a FUNC. | |
1198 | * | |
1199 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1200 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1201 | * call to S_sublex_push(). | |
1202 | */ | |
1203 | ||
76e3520e | 1204 | STATIC I32 |
cea2e8a9 | 1205 | S_sublex_start(pTHX) |
79072805 | 1206 | { |
3bad88ff | 1207 | register const I32 op_type = yylval.ival; |
79072805 LW |
1208 | |
1209 | if (op_type == OP_NULL) { | |
3280af22 | 1210 | yylval.opval = PL_lex_op; |
5900599a | 1211 | PL_lex_op = NULL; |
79072805 LW |
1212 | return THING; |
1213 | } | |
1214 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1215 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1216 | |
1217 | if (SvTYPE(sv) == SVt_PVIV) { | |
1218 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1219 | STRLEN len; | |
1e7ed80e | 1220 | const char * const p = SvPV_const(sv, len); |
24c2fff4 | 1221 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1222 | if (SvUTF8(sv)) |
1223 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1224 | SvREFCNT_dec(sv); |
1225 | sv = nsv; | |
4e553d73 | 1226 | } |
b3ac6de7 | 1227 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
0e2d6244 | 1228 | PL_lex_stuff = NULL; |
79072805 LW |
1229 | return THING; |
1230 | } | |
1231 | ||
3280af22 NIS |
1232 | PL_sublex_info.super_state = PL_lex_state; |
1233 | PL_sublex_info.sub_inwhat = op_type; | |
1234 | PL_sublex_info.sub_op = PL_lex_op; | |
1235 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1236 | |
3280af22 NIS |
1237 | PL_expect = XTERM; |
1238 | if (PL_lex_op) { | |
1239 | yylval.opval = PL_lex_op; | |
5900599a | 1240 | PL_lex_op = NULL; |
55497cff | 1241 | return PMFUNC; |
1242 | } | |
1243 | else | |
1244 | return FUNC; | |
1245 | } | |
1246 | ||
ffb4593c NT |
1247 | /* |
1248 | * S_sublex_push | |
1249 | * Create a new scope to save the lexing state. The scope will be | |
1250 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1251 | * to the uc, lc, etc. found before. | |
1252 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1253 | */ | |
1254 | ||
76e3520e | 1255 | STATIC I32 |
cea2e8a9 | 1256 | S_sublex_push(pTHX) |
55497cff | 1257 | { |
f46d017c | 1258 | ENTER; |
55497cff | 1259 | |
3280af22 NIS |
1260 | PL_lex_state = PL_sublex_info.super_state; |
1261 | SAVEI32(PL_lex_dojoin); | |
1262 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1263 | SAVEI32(PL_lex_casemods); |
1264 | SAVEI32(PL_lex_starts); | |
1265 | SAVEI32(PL_lex_state); | |
7766f137 | 1266 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1267 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1268 | SAVECOPLINE(PL_curcop); |
3280af22 | 1269 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1270 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1271 | SAVEPPTR(PL_oldbufptr); |
1272 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1273 | SAVEPPTR(PL_last_lop); |
1274 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1275 | SAVEPPTR(PL_linestart); |
1276 | SAVESPTR(PL_linestr); | |
bda19f49 JH |
1277 | SAVEGENERICPV(PL_lex_brackstack); |
1278 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1279 | |
1280 | PL_linestr = PL_lex_stuff; | |
0e2d6244 | 1281 | PL_lex_stuff = NULL; |
3280af22 | 1282 | |
9cbb5ea2 GS |
1283 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1284 | = SvPVX(PL_linestr); | |
3280af22 | 1285 | PL_bufend += SvCUR(PL_linestr); |
0e2d6244 | 1286 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1287 | SAVEFREESV(PL_linestr); |
1288 | ||
1289 | PL_lex_dojoin = FALSE; | |
1290 | PL_lex_brackets = 0; | |
cd7a8267 JC |
1291 | Newx(PL_lex_brackstack, 120, char); |
1292 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1293 | PL_lex_casemods = 0; |
1294 | *PL_lex_casestack = '\0'; | |
1295 | PL_lex_starts = 0; | |
1296 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1297 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1298 | |
1299 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1300 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1301 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1302 | else |
5900599a | 1303 | PL_lex_inpat = NULL; |
79072805 | 1304 | |
55497cff | 1305 | return '('; |
79072805 LW |
1306 | } |
1307 | ||
ffb4593c NT |
1308 | /* |
1309 | * S_sublex_done | |
1310 | * Restores lexer state after a S_sublex_push. | |
1311 | */ | |
1312 | ||
76e3520e | 1313 | STATIC I32 |
cea2e8a9 | 1314 | S_sublex_done(pTHX) |
79072805 | 1315 | { |
3280af22 | 1316 | if (!PL_lex_starts++) { |
d7559646 | 1317 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1318 | if (SvUTF8(PL_linestr)) |
1319 | SvUTF8_on(sv); | |
3280af22 | 1320 | PL_expect = XOPERATOR; |
9aa983d2 | 1321 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1322 | return THING; |
1323 | } | |
1324 | ||
3280af22 NIS |
1325 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1326 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1327 | return yylex(); |
79072805 LW |
1328 | } |
1329 | ||
ffb4593c | 1330 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1331 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1332 | PL_linestr = PL_lex_repl; | |
1333 | PL_lex_inpat = 0; | |
1334 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1335 | PL_bufend += SvCUR(PL_linestr); | |
0e2d6244 | 1336 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1337 | SAVEFREESV(PL_linestr); |
1338 | PL_lex_dojoin = FALSE; | |
1339 | PL_lex_brackets = 0; | |
3280af22 NIS |
1340 | PL_lex_casemods = 0; |
1341 | *PL_lex_casestack = '\0'; | |
1342 | PL_lex_starts = 0; | |
25da4f38 | 1343 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1344 | PL_lex_state = LEX_INTERPNORMAL; |
1345 | PL_lex_starts++; | |
e9fa98b2 HS |
1346 | /* we don't clear PL_lex_repl here, so that we can check later |
1347 | whether this is an evalled subst; that means we rely on the | |
1348 | logic to ensure sublex_done() is called again only via the | |
1349 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1350 | } |
e9fa98b2 | 1351 | else { |
3280af22 | 1352 | PL_lex_state = LEX_INTERPCONCAT; |
0e2d6244 | 1353 | PL_lex_repl = NULL; |
e9fa98b2 | 1354 | } |
79072805 | 1355 | return ','; |
ffed7fef LW |
1356 | } |
1357 | else { | |
f46d017c | 1358 | LEAVE; |
3280af22 NIS |
1359 | PL_bufend = SvPVX(PL_linestr); |
1360 | PL_bufend += SvCUR(PL_linestr); | |
1361 | PL_expect = XOPERATOR; | |
09bef843 | 1362 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1363 | return ')'; |
ffed7fef LW |
1364 | } |
1365 | } | |
1366 | ||
02aa26ce NT |
1367 | /* |
1368 | scan_const | |
1369 | ||
1370 | Extracts a pattern, double-quoted string, or transliteration. This | |
1371 | is terrifying code. | |
1372 | ||
16563954 | 1373 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1374 | processing a pattern (PL_lex_inpat is true), a transliteration |
16563954 | 1375 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1376 | |
16563954 NC |
1377 | Returns a pointer to the character scanned up to. If this is |
1378 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a GS |
1379 | successfully parsed), will leave an OP for the substring scanned |
1380 | in yylval. Caller must intuit reason for not parsing further | |
1381 | by looking at the next characters herself. | |
1382 | ||
02aa26ce NT |
1383 | In patterns: |
1384 | backslashes: | |
1385 | double-quoted style: \r and \n | |
1386 | regexp special ones: \D \s | |
16563954 NC |
1387 | constants: \x31 |
1388 | backrefs: \1 | |
02aa26ce NT |
1389 | case and quoting: \U \Q \E |
1390 | stops on @ and $, but not for $ as tail anchor | |
1391 | ||
1392 | In transliterations: | |
1393 | characters are VERY literal, except for - not at the start or end | |
16563954 NC |
1394 | of the string, which indicates a range. If the range is in bytes, |
1395 | scan_const expands the range to the full set of intermediate | |
1396 | characters. If the range is in utf8, the hyphen is replaced with | |
1397 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1398 | |
1399 | In double-quoted strings: | |
1400 | backslashes: | |
1401 | double-quoted style: \r and \n | |
16563954 NC |
1402 | constants: \x31 |
1403 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1404 | case and quoting: \U \Q \E |
1405 | stops on @ and $ | |
1406 | ||
1407 | scan_const does *not* construct ops to handle interpolated strings. | |
1408 | It stops processing as soon as it finds an embedded $ or @ variable | |
1409 | and leaves it to the caller to work out what's going on. | |
1410 | ||
16563954 NC |
1411 | embedded arrays (whether in pattern or not) could be: |
1412 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1413 | ||
1414 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1415 | |
1416 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1417 | it's a tail anchor if $ is the last thing in the string, or if it's | |
16563954 | 1418 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1419 | |
1420 | \1 (backreferences) are turned into $1 | |
1421 | ||
1422 | The structure of the code is | |
1423 | while (there's a character to process) { | |
16563954 NC |
1424 | handle transliteration ranges |
1425 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1426 | skip #-initiated comments in //x patterns | |
1427 | check for embedded arrays | |
02aa26ce NT |
1428 | check for embedded scalars |
1429 | if (backslash) { | |
16563954 NC |
1430 | leave intact backslashes from leaveit (below) |
1431 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1432 | handle string-changing backslashes \l \U \Q \E, etc. |
1433 | switch (what was escaped) { | |
16563954 NC |
1434 | handle \- in a transliteration (becomes a literal -) |
1435 | handle \132 (octal characters) | |
1436 | handle \x15 and \x{1234} (hex characters) | |
1437 | handle \N{name} (named characters) | |
1438 | handle \cV (control characters) | |
1439 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1440 | } (end switch) |
1441 | } (end if backslash) | |
1442 | } (end while character to read) | |
4e553d73 | 1443 | |
02aa26ce NT |
1444 | */ |
1445 | ||
76e3520e | 1446 | STATIC char * |
cea2e8a9 | 1447 | S_scan_const(pTHX_ char *start) |
79072805 | 1448 | { |
3280af22 | 1449 | register char *send = PL_bufend; /* end of the constant */ |
133cdda0 | 1450 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1451 | register char *s = start; /* start of the constant */ |
1452 | register char *d = SvPVX(sv); /* destination for copies */ | |
1453 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1454 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1455 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1456 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1457 | UV uv; |
48ea04fa TS |
1458 | #ifdef EBCDIC |
1459 | UV literal_endpoint = 0; | |
209f66d7 | 1460 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
48ea04fa | 1461 | #endif |
012bcf8d | 1462 | |
43b2f713 | 1463 | const char * const leaveit = /* set of acceptably-backslashed characters */ |
d2ae4405 JH |
1464 | (const char *) |
1465 | (PL_lex_inpat | |
1466 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-nrtfeaxcz0123456789[{]} \t\n\r\f\v#" | |
1467 | : ""); | |
79072805 | 1468 | |
2b9d42f0 NIS |
1469 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1470 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1471 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1472 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1473 | } | |
1474 | ||
1475 | ||
79072805 | 1476 | while (s < send || dorange) { |
02aa26ce | 1477 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1478 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1479 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1480 | if (dorange) { |
1ba5c669 JH |
1481 | I32 i; /* current expanded character */ |
1482 | I32 min; /* first character in range */ | |
1483 | I32 max; /* last character in range */ | |
02aa26ce | 1484 | |
209f66d7 NC |
1485 | #ifdef EBCDIC |
1486 | UV uvmax = 0; | |
1487 | #endif | |
1488 | ||
1489 | if (has_utf8 | |
1490 | #ifdef EBCDIC | |
1491 | && !native_range | |
1492 | #endif | |
1493 | ) { | |
a2592645 | 1494 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1495 | char *e = d++; |
1496 | while (e-- > c) | |
1497 | *(e + 1) = *e; | |
25716404 | 1498 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1499 | /* mark the range as done, and continue */ |
1500 | dorange = FALSE; | |
1501 | didrange = TRUE; | |
1502 | continue; | |
1503 | } | |
2b9d42f0 | 1504 | |
5e7e76a3 | 1505 | i = d - SvPVX_const(sv); /* remember current offset */ |
209f66d7 NC |
1506 | #ifdef EBCDIC |
1507 | SvGROW(sv, | |
1508 | SvLEN(sv) + (has_utf8 ? | |
1509 | (512 - UTF_CONTINUATION_MARK + | |
1510 | UNISKIP(0x100)) | |
1511 | : 256)); | |
1512 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1513 | * 96 in UTF-8-mod. */ | |
1514 | #else | |
9cbb5ea2 | 1515 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
209f66d7 | 1516 | #endif |
9cbb5ea2 | 1517 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
209f66d7 NC |
1518 | #ifdef EBCDIC |
1519 | if (has_utf8) { | |
1520 | int j; | |
1521 | for (j = 0; j <= 1; j++) { | |
1522 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1523 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1524 | if (j) | |
1525 | min = (U8)uv; | |
1526 | else if (uv < 256) | |
1527 | max = (U8)uv; | |
1528 | else { | |
1529 | max = (U8)0xff; /* only to \xff */ | |
1530 | uvmax = uv; /* \x{100} to uvmax */ | |
1531 | } | |
1532 | d = c; /* eat endpoint chars */ | |
1533 | } | |
1534 | } | |
1535 | else { | |
1536 | #endif | |
1537 | d -= 2; /* eat the first char and the - */ | |
1538 | min = (U8)*d; /* first char in range */ | |
1539 | max = (U8)d[1]; /* last char in range */ | |
1540 | #ifdef EBCDIC | |
1541 | } | |
1542 | #endif | |
8ada0baa | 1543 | |
c2e66d9e | 1544 | if (min > max) { |
01ec43d0 | 1545 | Perl_croak(aTHX_ |
5b7ea690 | 1546 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1547 | (char)min, (char)max); |
c2e66d9e GS |
1548 | } |
1549 | ||
c7f1f016 | 1550 | #ifdef EBCDIC |
48ea04fa TS |
1551 | if (literal_endpoint == 2 && |
1552 | ((isLOWER(min) && isLOWER(max)) || | |
1553 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1554 | if (isLOWER(min)) { |
1555 | for (i = min; i <= max; i++) | |
1556 | if (isLOWER(i)) | |
db42d148 | 1557 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1558 | } else { |
1559 | for (i = min; i <= max; i++) | |
1560 | if (isUPPER(i)) | |
db42d148 | 1561 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1562 | } |
1563 | } | |
1564 | else | |
1565 | #endif | |
1566 | for (i = min; i <= max; i++) | |
209f66d7 NC |
1567 | #ifdef EBCDIC |
1568 | if (has_utf8) { | |
1569 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
1570 | if (UNI_IS_INVARIANT(ch)) | |
1571 | *d++ = (U8)i; | |
1572 | else { | |
1573 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
1574 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
1575 | } | |
1576 | } | |
1577 | else | |
1578 | #endif | |
1579 | *d++ = (char)i; | |
1580 | ||
1581 | #ifdef EBCDIC | |
1582 | if (uvmax) { | |
1583 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
1584 | if (uvmax > 0x101) | |
1585 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
1586 | if (uvmax > 0x100) | |
1587 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
1588 | } | |
1589 | #endif | |
02aa26ce NT |
1590 | |
1591 | /* mark the range as done, and continue */ | |
79072805 | 1592 | dorange = FALSE; |
01ec43d0 | 1593 | didrange = TRUE; |
48ea04fa TS |
1594 | #ifdef EBCDIC |
1595 | literal_endpoint = 0; | |
1596 | #endif | |
79072805 | 1597 | continue; |
4e553d73 | 1598 | } |
02aa26ce NT |
1599 | |
1600 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1601 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1602 | if (didrange) { |
1fafa243 | 1603 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1604 | } |
209f66d7 NC |
1605 | if (has_utf8 |
1606 | #ifdef EBCDIC | |
1607 | && !native_range | |
1608 | #endif | |
1609 | ) { | |
25716404 | 1610 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1611 | s++; |
1612 | continue; | |
1613 | } | |
79072805 LW |
1614 | dorange = TRUE; |
1615 | s++; | |
01ec43d0 GS |
1616 | } |
1617 | else { | |
1618 | didrange = FALSE; | |
48ea04fa TS |
1619 | #ifdef EBCDIC |
1620 | literal_endpoint = 0; | |
209f66d7 | 1621 | native_range = TRUE; |
48ea04fa | 1622 | #endif |
01ec43d0 | 1623 | } |
79072805 | 1624 | } |
02aa26ce NT |
1625 | |
1626 | /* if we get here, we're not doing a transliteration */ | |
1627 | ||
0f5d15d6 IZ |
1628 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1629 | except for the last char, which will be done separately. */ | |
3280af22 | 1630 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1631 | if (s[2] == '#') { |
a00160b9 | 1632 | while (s+1 < send && *s != ')') |
db42d148 | 1633 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1634 | } |
1635 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1636 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1637 | { | |
cc6b7395 | 1638 | I32 count = 1; |
0f5d15d6 | 1639 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1640 | char c; |
1641 | ||
d9f97599 GS |
1642 | while (count && (c = *regparse)) { |
1643 | if (c == '\\' && regparse[1]) | |
1644 | regparse++; | |
4e553d73 | 1645 | else if (c == '{') |
cc6b7395 | 1646 | count++; |
4e553d73 | 1647 | else if (c == '}') |
cc6b7395 | 1648 | count--; |
d9f97599 | 1649 | regparse++; |
cc6b7395 | 1650 | } |
a00160b9 | 1651 | if (*regparse != ')') |
5bdf89e7 | 1652 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1653 | while (s < regparse) |
db42d148 | 1654 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1655 | } |
748a9306 | 1656 | } |
02aa26ce NT |
1657 | |
1658 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1659 | else if (*s == '#' && PL_lex_inpat && |
1660 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1661 | while (s+1 < send && *s != '\n') |
db42d148 | 1662 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1663 | } |
02aa26ce | 1664 | |
5d1d4326 | 1665 | /* check for embedded arrays |
da6eedaa | 1666 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1667 | */ |
f1f1ce66 TS |
1668 | else if (*s == '@' && s[1]) { |
1669 | if (isALNUM_lazy_if(s+1,UTF)) | |
1670 | break; | |
1671 | if (strchr(":'{$", s[1])) | |
1672 | break; | |
1673 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
1674 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
1675 | } | |
02aa26ce NT |
1676 | |
1677 | /* check for embedded scalars. only stop if we're sure it's a | |
1678 | variable. | |
1679 | */ | |
79072805 | 1680 | else if (*s == '$') { |
3280af22 | 1681 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 1682 | break; |
6002328a | 1683 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
1684 | break; /* in regexp, $ might be tail anchor */ |
1685 | } | |
02aa26ce | 1686 | |
2b9d42f0 NIS |
1687 | /* End of else if chain - OP_TRANS rejoin rest */ |
1688 | ||
02aa26ce | 1689 | /* backslashes */ |
79072805 LW |
1690 | if (*s == '\\' && s+1 < send) { |
1691 | s++; | |
02aa26ce NT |
1692 | |
1693 | /* some backslashes we leave behind */ | |
c9f97d15 | 1694 | if (*leaveit && *s && strchr(leaveit, *s)) { |
db42d148 NIS |
1695 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
1696 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
79072805 LW |
1697 | continue; |
1698 | } | |
02aa26ce NT |
1699 | |
1700 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 1701 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 1702 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 1703 | { |
599cee73 | 1704 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 1705 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
1706 | *--s = '$'; |
1707 | break; | |
1708 | } | |
02aa26ce NT |
1709 | |
1710 | /* string-change backslash escapes */ | |
3280af22 | 1711 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
1712 | --s; |
1713 | break; | |
1714 | } | |
02aa26ce NT |
1715 | |
1716 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 1717 | switch (*s) { |
02aa26ce NT |
1718 | |
1719 | /* quoted - in transliterations */ | |
79072805 | 1720 | case '-': |
3280af22 | 1721 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
1722 | *d++ = *s++; |
1723 | continue; | |
1724 | } | |
1725 | /* FALL THROUGH */ | |
1726 | default: | |
11b8faa4 | 1727 | { |
620e3b3d | 1728 | if ((isALPHA(*s) || isDIGIT(*s)) && |
f5e9f069 | 1729 | ckWARN(WARN_MISC)) |
9014280d | 1730 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
209f66d7 NC |
1731 | "Unrecognized escape \\%c passed through", |
1732 | *s); | |
11b8faa4 | 1733 | /* default action is to copy the quoted character */ |
f9a63242 | 1734 | goto default_action; |
11b8faa4 | 1735 | } |
02aa26ce NT |
1736 | |
1737 | /* \132 indicates an octal constant */ | |
79072805 LW |
1738 | case '0': case '1': case '2': case '3': |
1739 | case '4': case '5': case '6': case '7': | |
ba210ebe | 1740 | { |
53305cf1 NC |
1741 | I32 flags = 0; |
1742 | STRLEN len = 3; | |
1743 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
1744 | s += len; |
1745 | } | |
012bcf8d | 1746 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
1747 | |
1748 | /* \x24 indicates a hex constant */ | |
79072805 | 1749 | case 'x': |
a0ed51b3 LW |
1750 | ++s; |
1751 | if (*s == '{') { | |
a2592645 | 1752 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
1753 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
1754 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 1755 | STRLEN len; |
355860ce | 1756 | |
53305cf1 | 1757 | ++s; |
adaeee49 | 1758 | if (!e) { |
a0ed51b3 | 1759 | yyerror("Missing right brace on \\x{}"); |
355860ce | 1760 | continue; |
ba210ebe | 1761 | } |
53305cf1 NC |
1762 | len = e - s; |
1763 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 1764 | s = e + 1; |
a0ed51b3 LW |
1765 | } |
1766 | else { | |
ba210ebe | 1767 | { |
53305cf1 | 1768 | STRLEN len = 2; |
a4c04bdc | 1769 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 1770 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
1771 | s += len; |
1772 | } | |
012bcf8d GS |
1773 | } |
1774 | ||
1775 | NUM_ESCAPE_INSERT: | |
1776 | /* Insert oct or hex escaped character. | |
301d3d20 | 1777 | * There will always enough room in sv since such |
db42d148 | 1778 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 1779 | * they can end up as. */ |
ba7cea30 | 1780 | |
c7f1f016 NIS |
1781 | /* We need to map to chars to ASCII before doing the tests |
1782 | to cover EBCDIC | |
1783 | */ | |
c4d5f83a | 1784 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 1785 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
1786 | /* Might need to recode whatever we have |
1787 | * accumulated so far if it contains any | |
1788 | * hibit chars. | |
1789 | * | |
1790 | * (Can't we keep track of that and avoid | |
1791 | * this rescan? --jhi) | |
012bcf8d | 1792 | */ |
c7f1f016 | 1793 | int hicount = 0; |
63cd0674 NIS |
1794 | U8 *c; |
1795 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 1796 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 1797 | hicount++; |
db42d148 | 1798 | } |
012bcf8d | 1799 | } |
63cd0674 | 1800 | if (hicount) { |
a2592645 | 1801 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
1802 | U8 *src, *dst; |
1803 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
1804 | src = (U8 *)d - 1; | |
1805 | dst = src+hicount; | |
1806 | d += hicount; | |
71a0dd65 | 1807 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 1808 | if (!NATIVE_IS_INVARIANT(*src)) { |
a2592645 | 1809 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
1810 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
1811 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
1812 | } |
1813 | else { | |
63cd0674 | 1814 | *dst-- = *src; |
012bcf8d | 1815 | } |
c7f1f016 | 1816 | src--; |
012bcf8d GS |
1817 | } |
1818 | } | |
1819 | } | |
1820 | ||
9aa983d2 | 1821 | if (has_utf8 || uv > 255) { |
9041c2e3 | 1822 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 1823 | has_utf8 = TRUE; |
f9a63242 JH |
1824 | if (PL_lex_inwhat == OP_TRANS && |
1825 | PL_sublex_info.sub_op) { | |
1826 | PL_sublex_info.sub_op->op_private |= | |
1827 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
1828 | : OPpTRANS_TO_UTF); | |
f9a63242 | 1829 | } |
209f66d7 NC |
1830 | #ifdef EBCDIC |
1831 | if (uv > 255 && !dorange) | |
1832 | native_range = FALSE; | |
1833 | #endif | |
012bcf8d | 1834 | } |
a0ed51b3 | 1835 | else { |
012bcf8d | 1836 | *d++ = (char)uv; |
a0ed51b3 | 1837 | } |
012bcf8d GS |
1838 | } |
1839 | else { | |
c4d5f83a | 1840 | *d++ = (char) uv; |
a0ed51b3 | 1841 | } |
79072805 | 1842 | continue; |
02aa26ce | 1843 | |
b239daa5 | 1844 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 1845 | case 'N': |
55eda711 | 1846 | ++s; |
423cee85 JH |
1847 | if (*s == '{') { |
1848 | char* e = strchr(s, '}'); | |
155aba94 | 1849 | SV *res; |
423cee85 | 1850 | STRLEN len; |
71a0dd65 | 1851 | const char *str; |
4e553d73 | 1852 | |
423cee85 | 1853 | if (!e) { |
5777a3f7 | 1854 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
1855 | e = s - 1; |
1856 | goto cont_scan; | |
1857 | } | |
dbc0d4f2 JH |
1858 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
1859 | /* \N{U+...} */ | |
1860 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
1861 | PERL_SCAN_DISALLOW_PREFIX; | |
1862 | s += 3; | |
1863 | len = e - s; | |
1864 | uv = grok_hex(s, &len, &flags, NULL); | |
1865 | s = e + 1; | |
1866 | goto NUM_ESCAPE_INSERT; | |
1867 | } | |
55eda711 | 1868 | res = newSVpvn(s + 1, e - s - 1); |
0e2d6244 SS |
1869 | res = new_constant( NULL, 0, "charnames", |
1870 | res, NULL, "\\N{...}" ); | |
f9a63242 JH |
1871 | if (has_utf8) |
1872 | sv_utf8_upgrade(res); | |
71a0dd65 | 1873 | str = SvPV_const(res,len); |
1c47067b JH |
1874 | #ifdef EBCDIC_NEVER_MIND |
1875 | /* charnames uses pack U and that has been | |
1876 | * recently changed to do the below uni->native | |
1877 | * mapping, so this would be redundant (and wrong, | |
1878 | * the code point would be doubly converted). | |
1879 | * But leave this in just in case the pack U change | |
1880 | * gets revoked, but the semantics is still | |
1881 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 1882 | { |
71a0dd65 | 1883 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
1884 | |
1885 | if (uv < 0x100) { | |
a2a469f9 | 1886 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
1887 | |
1888 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
1889 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
71a0dd65 | 1890 | str = SvPV_const(res, len); |
cddc7ef4 JH |
1891 | } |
1892 | } | |
1893 | #endif | |
89491803 | 1894 | if (!has_utf8 && SvUTF8(res)) { |
a2592645 | 1895 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
1896 | SvCUR_set(sv, d - ostart); |
1897 | SvPOK_on(sv); | |
e4f3eed8 | 1898 | *d = '\0'; |
f08d6ad9 | 1899 | sv_utf8_upgrade(sv); |
d2f449dd | 1900 | /* this just broke our allocation above... */ |
eb160463 | 1901 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 1902 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 1903 | has_utf8 = TRUE; |
f08d6ad9 | 1904 | } |
eb160463 | 1905 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
a2592645 | 1906 | const char * const odest = SvPVX_const(sv); |
423cee85 | 1907 | |
8973db79 | 1908 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
1909 | d = SvPVX(sv) + (d - odest); |
1910 | } | |
209f66d7 NC |
1911 | #ifdef EBCDIC |
1912 | if (!dorange) | |
1913 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
1914 | #endif | |
423cee85 JH |
1915 | Copy(str, d, len, char); |
1916 | d += len; | |
1917 | SvREFCNT_dec(res); | |
1918 | cont_scan: | |
1919 | s = e + 1; | |
1920 | } | |
1921 | else | |
5777a3f7 | 1922 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
1923 | continue; |
1924 | ||
02aa26ce | 1925 | /* \c is a control character */ |
79072805 LW |
1926 | case 'c': |
1927 | s++; | |
7223e9d8 | 1928 | if (s < send) { |
ba210ebe | 1929 | U8 c = *s++; |
c7f1f016 NIS |
1930 | #ifdef EBCDIC |
1931 | if (isLOWER(c)) | |
1932 | c = toUPPER(c); | |
1933 | #endif | |
db42d148 | 1934 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 1935 | } |
7223e9d8 JH |
1936 | else { |
1937 | yyerror("Missing control char name in \\c"); | |
1938 | } | |
79072805 | 1939 | continue; |
02aa26ce NT |
1940 | |
1941 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 1942 | case 'b': |
db42d148 | 1943 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
1944 | break; |
1945 | case 'n': | |
db42d148 | 1946 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
1947 | break; |
1948 | case 'r': | |
db42d148 | 1949 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
1950 | break; |
1951 | case 'f': | |
db42d148 | 1952 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
1953 | break; |
1954 | case 't': | |
db42d148 | 1955 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 1956 | break; |
34a3fe2a | 1957 | case 'e': |
db42d148 | 1958 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
1959 | break; |
1960 | case 'a': | |
db42d148 | 1961 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 1962 | break; |
02aa26ce NT |
1963 | } /* end switch */ |
1964 | ||
79072805 LW |
1965 | s++; |
1966 | continue; | |
02aa26ce | 1967 | } /* end if (backslash) */ |
48ea04fa TS |
1968 | #ifdef EBCDIC |
1969 | else | |
1970 | literal_endpoint++; | |
1971 | #endif | |
02aa26ce | 1972 | |
f9a63242 | 1973 | default_action: |
2b9d42f0 NIS |
1974 | /* If we started with encoded form, or already know we want it |
1975 | and then encode the next character */ | |
1976 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
1977 | STRLEN len = 1; | |
5900599a NC |
1978 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
1979 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
1980 | s += len; |
1981 | if (need > len) { | |
1982 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
a2592645 | 1983 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
1984 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
1985 | } | |
5900599a | 1986 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 1987 | has_utf8 = TRUE; |
209f66d7 NC |
1988 | #ifdef EBCDIC |
1989 | if (uv > 255 && !dorange) | |
1990 | native_range = FALSE; | |
1991 | #endif | |
2b9d42f0 NIS |
1992 | } |
1993 | else { | |
1994 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
1995 | } | |
02aa26ce NT |
1996 | } /* while loop to process each character */ |
1997 | ||
1998 | /* terminate the string and set up the sv */ | |
79072805 | 1999 | *d = '\0'; |
5e7e76a3 | 2000 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2001 | if (SvCUR(sv) >= SvLEN(sv)) |
5b7ea690 | 2002 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2003 | |
79072805 | 2004 | SvPOK_on(sv); |
9f4817db | 2005 | if (PL_encoding && !has_utf8) { |
5b7ea690 JH |
2006 | sv_recode_to_utf8(sv, PL_encoding); |
2007 | if (SvUTF8(sv)) | |
2008 | has_utf8 = TRUE; | |
9f4817db | 2009 | } |
2b9d42f0 | 2010 | if (has_utf8) { |
7e2040f0 | 2011 | SvUTF8_on(sv); |
2b9d42f0 | 2012 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
5b7ea690 | 2013 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2014 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2015 | } | |
2016 | } | |
79072805 | 2017 | |
02aa26ce | 2018 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2019 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
ea5389ca | 2020 | SvPV_shrink_to_cur(sv); |
79072805 | 2021 | } |
02aa26ce | 2022 | |
9b599b2a | 2023 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2024 | if (s > PL_bufptr) { |
2025 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
d2ae4405 JH |
2026 | sv = new_constant(start, s - start, |
2027 | (const char *)(PL_lex_inpat ? "qr" : "q"), | |
0e2d6244 | 2028 | sv, NULL, |
d2ae4405 JH |
2029 | (const char *) |
2030 | (( PL_lex_inwhat == OP_TRANS | |
2031 | ? "tr" | |
2032 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) | |
2033 | ? "s" | |
2034 | : "qq")))); | |
79072805 | 2035 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2036 | } else |
8990e307 | 2037 | SvREFCNT_dec(sv); |
79072805 LW |
2038 | return s; |
2039 | } | |
2040 | ||
ffb4593c NT |
2041 | /* S_intuit_more |
2042 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2043 | * FALSE otherwise. | |
ffb4593c NT |
2044 | * |
2045 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2046 | * | |
2047 | * ->[ and ->{ return TRUE | |
2048 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2049 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2050 | * if we're in a pattern and the first char is a { | |
2051 | * {4,5} (any digits around the comma) returns FALSE | |
2052 | * if we're in a pattern and the first char is a [ | |
2053 | * [] returns FALSE | |
2054 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2055 | * character class or not. It has to deal with things like | |
2056 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2057 | * anything else returns TRUE | |
2058 | */ | |
2059 | ||
9cbb5ea2 GS |
2060 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2061 | ||
76e3520e | 2062 | STATIC int |
cea2e8a9 | 2063 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2064 | { |
3280af22 | 2065 | if (PL_lex_brackets) |
79072805 LW |
2066 | return TRUE; |
2067 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2068 | return TRUE; | |
2069 | if (*s != '{' && *s != '[') | |
2070 | return FALSE; | |
3280af22 | 2071 | if (!PL_lex_inpat) |
79072805 LW |
2072 | return TRUE; |
2073 | ||
2074 | /* In a pattern, so maybe we have {n,m}. */ | |
2075 | if (*s == '{') { | |
2076 | s++; | |
2077 | if (!isDIGIT(*s)) | |
2078 | return TRUE; | |
2079 | while (isDIGIT(*s)) | |
2080 | s++; | |
2081 | if (*s == ',') | |
2082 | s++; | |
2083 | while (isDIGIT(*s)) | |
2084 | s++; | |
2085 | if (*s == '}') | |
2086 | return FALSE; | |
2087 | return TRUE; | |
2088 | ||
2089 | } | |
2090 | ||
2091 | /* On the other hand, maybe we have a character class */ | |
2092 | ||
2093 | s++; | |
2094 | if (*s == ']' || *s == '^') | |
2095 | return FALSE; | |
2096 | else { | |
ffb4593c | 2097 | /* this is terrifying, and it works */ |
79072805 LW |
2098 | int weight = 2; /* let's weigh the evidence */ |
2099 | char seen[256]; | |
f27ffc4a | 2100 | unsigned char un_char = 255, last_un_char; |
a2592645 | 2101 | const char * const send = strchr(s,']'); |
3280af22 | 2102 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2103 | |
2104 | if (!send) /* has to be an expression */ | |
2105 | return TRUE; | |
2106 | ||
2107 | Zero(seen,256,char); | |
2108 | if (*s == '$') | |
2109 | weight -= 3; | |
2110 | else if (isDIGIT(*s)) { | |
2111 | if (s[1] != ']') { | |
2112 | if (isDIGIT(s[1]) && s[2] == ']') | |
2113 | weight -= 10; | |
2114 | } | |
2115 | else | |
2116 | weight -= 100; | |
2117 | } | |
2118 | for (; s < send; s++) { | |
2119 | last_un_char = un_char; | |
2120 | un_char = (unsigned char)*s; | |
2121 | switch (*s) { | |
2122 | case '@': | |
2123 | case '&': | |
2124 | case '$': | |
2125 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2126 | if (isALNUM_lazy_if(s+1,UTF)) { |
e4720ea4 | 2127 | int len; |
8903cb82 | 2128 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
e4720ea4 AL |
2129 | len = (int)strlen(tmpbuf); |
2130 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2131 | weight -= 100; |
2132 | else | |
2133 | weight -= 10; | |
2134 | } | |
2135 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2136 | strchr("[#!%*<>()-=",s[1])) { |
2137 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2138 | weight -= 10; |
2139 | else | |
2140 | weight -= 1; | |
2141 | } | |
2142 | break; | |
2143 | case '\\': | |
2144 | un_char = 254; | |
2145 | if (s[1]) { | |
93a17b20 | 2146 | if (strchr("wds]",s[1])) |
79072805 | 2147 | weight += 100; |
d2ae4405 | 2148 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2149 | weight += 1; |
93a17b20 | 2150 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2151 | weight += 40; |
2152 | else if (isDIGIT(s[1])) { | |
2153 | weight += 40; | |
2154 | while (s[1] && isDIGIT(s[1])) | |
2155 | s++; | |
2156 | } | |
2157 | } | |
2158 | else | |
2159 | weight += 100; | |
2160 | break; | |
2161 | case '-': | |
2162 | if (s[1] == '\\') | |
2163 | weight += 50; | |
93a17b20 | 2164 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2165 | weight += 30; |
93a17b20 | 2166 | if (strchr("zZ79~",s[1])) |
79072805 | 2167 | weight += 30; |
f27ffc4a GS |
2168 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2169 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2170 | break; |
2171 | default: | |
3c71ae1e NC |
2172 | if (!isALNUM(last_un_char) |
2173 | && !(last_un_char == '$' || last_un_char == '@' | |
2174 | || last_un_char == '&') | |
2175 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2176 | char *d = tmpbuf; |
2177 | while (isALPHA(*s)) | |
2178 | *d++ = *s++; | |
2179 | *d = '\0'; | |
2180 | if (keyword(tmpbuf, d - tmpbuf)) | |
2181 | weight -= 150; | |
2182 | } | |
2183 | if (un_char == last_un_char + 1) | |
2184 | weight += 5; | |
2185 | weight -= seen[un_char]; | |
2186 | break; | |
2187 | } | |
2188 | seen[un_char]++; | |
2189 | } | |
2190 | if (weight >= 0) /* probably a character class */ | |
2191 | return FALSE; | |
2192 | } | |
2193 | ||
2194 | return TRUE; | |
2195 | } | |
ffed7fef | 2196 | |
ffb4593c NT |
2197 | /* |
2198 | * S_intuit_method | |
2199 | * | |
2200 | * Does all the checking to disambiguate | |
2201 | * foo bar | |
2202 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2203 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2204 | * | |
2205 | * First argument is the stuff after the first token, e.g. "bar". | |
2206 | * | |
2207 | * Not a method if bar is a filehandle. | |
2208 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2209 | * Not a method if it's really "Foo $bar" | |
2210 | * Method if it's "foo $bar" | |
2211 | * Not a method if it's really "print foo $bar" | |
2212 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2213 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2214 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2215 | * => |
2216 | */ | |
2217 | ||
76e3520e | 2218 | STATIC int |
a92f283d | 2219 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e LW |
2220 | { |
2221 | char *s = start + (*start == '$'); | |
3280af22 | 2222 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2223 | STRLEN len; |
2224 | GV* indirgv; | |
2225 | ||
2226 | if (gv) { | |
a92f283d | 2227 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2228 | return 0; |
a92f283d NC |
2229 | if (cv) { |
2230 | if (SvPOK(cv)) { | |
2231 | const char *proto = SvPVX_const(cv); | |
2232 | if (proto) { | |
2233 | if (*proto == ';') | |
2234 | proto++; | |
2235 | if (*proto == '*') | |
2236 | return 0; | |
2237 | } | |
b6c543e3 IZ |
2238 | } |
2239 | } else | |
8e7b0921 | 2240 | gv = NULL; |
a0d0e21e | 2241 | } |
8903cb82 | 2242 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2243 | /* start is the beginning of the possible filehandle/object, |
2244 | * and s is the end of it | |
2245 | * tmpbuf is a copy of it | |
2246 | */ | |
2247 | ||
a0d0e21e | 2248 | if (*start == '$') { |
3280af22 | 2249 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2250 | return 0; |
fe656965 | 2251 | s = PEEKSPACE(s); |
3280af22 NIS |
2252 | PL_bufptr = start; |
2253 | PL_expect = XREF; | |
a0d0e21e LW |
2254 | return *s == '(' ? FUNCMETH : METHOD; |
2255 | } | |
2256 | if (!keyword(tmpbuf, len)) { | |
c3e0f903 GS |
2257 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2258 | len -= 2; | |
2259 | tmpbuf[len] = '\0'; | |
2260 | goto bare_package; | |
2261 | } | |
e4720ea4 | 2262 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2263 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2264 | return 0; |
2265 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2266 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
fe656965 | 2267 | s = PEEKSPACE(s); |
3280af22 | 2268 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2269 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2270 | bare_package: |
fe656965 | 2271 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2272 | newSVpvn(tmpbuf,len)); |
fe656965 | 2273 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
3280af22 | 2274 | PL_expect = XTERM; |
a0d0e21e | 2275 | force_next(WORD); |
3280af22 | 2276 | PL_bufptr = s; |
a0d0e21e LW |
2277 | return *s == '(' ? FUNCMETH : METHOD; |
2278 | } | |
2279 | } | |
2280 | return 0; | |
2281 | } | |
2282 | ||
ffb4593c NT |
2283 | /* |
2284 | * S_incl_perldb | |
2285 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2286 | * is set, it will return the contents of that, otherwise a | |
2287 | * compile-time require of perl5db.pl. | |
2288 | */ | |
2289 | ||
a00f3e00 | 2290 | STATIC const char* |
cea2e8a9 | 2291 | S_incl_perldb(pTHX) |
a0d0e21e | 2292 | { |
3280af22 | 2293 | if (PL_perldb) { |
a2592645 | 2294 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2295 | |
2296 | if (pdb) | |
2297 | return pdb; | |
5b7ea690 | 2298 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2299 | return "BEGIN { require 'perl5db.pl' }"; |
2300 | } | |
2301 | return ""; | |
2302 | } | |
2303 | ||
2304 | ||
16d20bd9 | 2305 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2306 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2307 | * Note that the filter function only applies to the current source file |
2308 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2309 | * | |
2310 | * The datasv parameter (which may be NULL) can be used to pass | |
2311 | * private data to this instance of the filter. The filter function | |
2312 | * can recover the SV using the FILTER_DATA macro and use it to | |
2313 | * store private buffers and state information. | |
2314 | * | |
2315 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2316 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2317 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2318 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2319 | * private use must be set using malloc'd pointers. | |
2320 | */ | |
16d20bd9 AD |
2321 | |
2322 | SV * | |
864dbfa3 | 2323 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2324 | { |
f4c556ac | 2325 | if (!funcp) |
0e2d6244 | 2326 | return NULL; |
f4c556ac | 2327 | |
3280af22 NIS |
2328 | if (!PL_rsfp_filters) |
2329 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2330 | if (!datasv) |
133cdda0 | 2331 | datasv = newSV(0); |
d2e2df35 | 2332 | (void)SvUPGRADE(datasv, SVt_PVIO); |
1c7ab622 | 2333 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2334 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2335 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
6d95986e NC |
2336 | FPTR2DPTR(void *, IoANY(datasv)), |
2337 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2338 | av_unshift(PL_rsfp_filters, 1); |
2339 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2340 | return(datasv); |
2341 | } | |
4e553d73 | 2342 | |
16d20bd9 AD |
2343 | |
2344 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2345 | void |
864dbfa3 | 2346 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2347 | { |
e0c19803 | 2348 | SV *datasv; |
cf011bf2 | 2349 | |
1c7ab622 | 2350 | #ifdef DEBUGGING |
6d95986e NC |
2351 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2352 | FPTR2DPTR(void*, funcp))); | |
1c7ab622 | 2353 | #endif |
3280af22 | 2354 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2355 | return; |
2356 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2357 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
1c7ab622 | 2358 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2359 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2360 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2361 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2362 | |
16d20bd9 AD |
2363 | return; |
2364 | } | |
2365 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2366 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2367 | } |
2368 | ||
2369 | ||
6dc97886 NC |
2370 | /* Invoke the idxth filter function for the current rsfp. */ |
2371 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2372 | I32 |
864dbfa3 | 2373 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2374 | { |
16d20bd9 AD |
2375 | filter_t funcp; |
2376 | SV *datasv = NULL; | |
4ddd3a22 NC |
2377 | /* This API is bad. It should have been using unsigned int for maxlen. |
2378 | Not sure if we want to change the API, but if not we should sanity | |
2379 | check the value here. */ | |
2380 | const unsigned int correct_length | |
2381 | = maxlen < 0 ? | |
2382 | #ifdef PERL_MICRO | |
2383 | 0x7FFFFFFF | |
2384 | #else | |
2385 | INT_MAX | |
2386 | #endif | |
2387 | : maxlen; | |
e50aee73 | 2388 | |
3280af22 | 2389 | if (!PL_rsfp_filters) |
16d20bd9 | 2390 | return -1; |
6dc97886 | 2391 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2392 | /* Provide a default input filter to make life easy. */ |
2393 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2394 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2395 | "filter_read %d: from rsfp\n", idx)); | |
4ddd3a22 | 2396 | if (correct_length) { |
16d20bd9 AD |
2397 | /* Want a block */ |
2398 | int len ; | |
24c2fff4 | 2399 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2400 | |
2401 | /* ensure buf_sv is large enough */ | |
4ddd3a22 NC |
2402 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2403 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2404 | correct_length)) <= 0) { | |
3280af22 | 2405 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2406 | return -1; /* error */ |
2407 | else | |
2408 | return 0 ; /* end of file */ | |
2409 | } | |
16d20bd9 AD |
2410 | SvCUR_set(buf_sv, old_len + len) ; |
2411 | } else { | |
2412 | /* Want a line */ | |
3280af22 NIS |
2413 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2414 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2415 | return -1; /* error */ |
2416 | else | |
2417 | return 0 ; /* end of file */ | |
2418 | } | |
16d20bd9 AD |
2419 | } |
2420 | return SvCUR(buf_sv); | |
2421 | } | |
2422 | /* Skip this filter slot if filter has been deleted */ | |
6dc97886 | 2423 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2424 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2425 | "filter_read %d: skipped (filter deleted)\n", | |
2426 | idx)); | |
4ddd3a22 | 2427 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2428 | } |
2429 | /* Get function pointer hidden within datasv */ | |
1c7ab622 | 2430 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2431 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2432 | "filter_read %d: via function %p (%s)\n", | |
f2139bd3 | 2433 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2434 | /* Call function. The function is expected to */ |
2435 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2436 | /* Return: <0:error, =0:eof, >0:not eof */ |
4ddd3a22 | 2437 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2438 | } |
2439 | ||
76e3520e | 2440 | STATIC char * |
cea2e8a9 | 2441 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2442 | { |
c39cd008 | 2443 | #ifdef PERL_CR_FILTER |
3280af22 | 2444 | if (!PL_rsfp_filters) { |
c39cd008 | 2445 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2446 | } |
2447 | #endif | |
3280af22 | 2448 | if (PL_rsfp_filters) { |
55497cff | 2449 | if (!append) |
2450 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2451 | if (FILTER_READ(0, sv, 0) > 0) |
2452 | return ( SvPVX(sv) ) ; | |
2453 | else | |
0e2d6244 | 2454 | return NULL ; |
16d20bd9 | 2455 | } |
9d116dd7 | 2456 | else |
fd049845 | 2457 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2458 | } |
2459 | ||
01ec43d0 | 2460 | STATIC HV * |
1f49be52 | 2461 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b GS |
2462 | { |
2463 | GV *gv; | |
2464 | ||
01ec43d0 | 2465 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2466 | return PL_curstash; |
2467 | ||
2468 | if (len > 2 && | |
2469 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
e4720ea4 | 2470 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2471 | { |
2472 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2473 | } |
2474 | ||
2475 | /* use constant CLASS => 'MyClass' */ | |
8e7b0921 AL |
2476 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2477 | if (gv && GvCV(gv)) { | |
2478 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2479 | if (sv) | |
c06c673c | 2480 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2481 | } |
2482 | ||
2483 | return gv_stashpv(pkgname, FALSE); | |
2484 | } | |
a0d0e21e | 2485 | |
d9e8c084 NC |
2486 | STATIC char * |
2487 | S_tokenize_use(pTHX_ int is_use, char *s) { | |
2488 | if (PL_expect != XSTATE) | |
2489 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
2490 | is_use ? "use" : "no")); | |
fe656965 | 2491 | s = SKIPSPACE1(s); |
d9e8c084 NC |
2492 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
2493 | s = force_version(s, TRUE); | |
fe656965 NC |
2494 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
2495 | NEXTVAL_NEXTTOKE.opval = NULL; | |
d9e8c084 NC |
2496 | force_next(WORD); |
2497 | } | |
2498 | else if (*s == 'v') { | |
2499 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2500 | s = force_version(s, FALSE); | |
2501 | } | |
2502 | } | |
2503 | else { | |
2504 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2505 | s = force_version(s, FALSE); | |
2506 | } | |
2507 | yylval.ival = is_use; | |
2508 | return s; | |
2509 | } | |
748a9306 | 2510 | #ifdef DEBUGGING |
fe20fd30 | 2511 | static const char* const exp_name[] = |
09bef843 SB |
2512 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
2513 | "ATTRTERM", "TERMBLOCK" | |
2514 | }; | |
748a9306 | 2515 | #endif |
463ee0b2 | 2516 | |
02aa26ce NT |
2517 | /* |
2518 | yylex | |
2519 | ||
2520 | Works out what to call the token just pulled out of the input | |
2521 | stream. The yacc parser takes care of taking the ops we return and | |
2522 | stitching them into a tree. | |
2523 | ||
2524 | Returns: | |
2525 | PRIVATEREF | |
2526 | ||
2527 | Structure: | |
2528 | if read an identifier | |
2529 | if we're in a my declaration | |
2530 | croak if they tried to say my($foo::bar) | |
2531 | build the ops for a my() declaration | |
2532 | if it's an access to a my() variable | |
2533 | are we in a sort block? | |
2534 | croak if my($a); $a <=> $b | |
2535 | build ops for access to a my() variable | |
2536 | if in a dq string, and they've said @foo and we can't find @foo | |
2537 | croak | |
2538 | build ops for a bareword | |
2539 | if we already built the token before, use it. | |
2540 | */ | |
2541 | ||
dba4d153 | 2542 | #ifdef USE_PURE_BISON |
864dbfa3 | 2543 | int |
dba4d153 | 2544 | Perl_yylex_r(pTHX_ YYSTYPE *lvalp, int *lcharp) |
378cc40b | 2545 | { |
20141f0e IRC |
2546 | int r; |
2547 | ||
6f202aea | 2548 | yyactlevel++; |
20141f0e IRC |
2549 | yylval_pointer[yyactlevel] = lvalp; |
2550 | yychar_pointer[yyactlevel] = lcharp; | |
b73d6f50 IRC |
2551 | if (yyactlevel >= YYMAXLEVEL) |
2552 | Perl_croak(aTHX_ "panic: YYMAXLEVEL"); | |
20141f0e | 2553 | |
dba4d153 | 2554 | r = Perl_yylex(aTHX); |
20141f0e | 2555 | |
d8ae6756 IRC |
2556 | if (yyactlevel > 0) |
2557 | yyactlevel--; | |
20141f0e IRC |
2558 | |
2559 | return r; | |
2560 | } | |
dba4d153 | 2561 | #endif |
20141f0e | 2562 | |
dba4d153 JH |
2563 | #ifdef __SC__ |
2564 | #pragma segment Perl_yylex | |
2565 | #endif | |
dba4d153 | 2566 | int |
dba4d153 | 2567 | Perl_yylex(pTHX) |
20141f0e | 2568 | { |
c870331e | 2569 | register char *s = PL_bufptr; |
378cc40b | 2570 | register char *d; |
463ee0b2 | 2571 | STRLEN len; |
aa7440fb | 2572 | bool bof = FALSE; |
a687059c | 2573 | |
d2ae4405 JH |
2574 | /* orig_keyword, gvp, and gv are initialized here because |
2575 | * jump to the label just_a_word_zero can bypass their | |
2576 | * initialization later. */ | |
2577 | I32 orig_keyword = 0; | |
2578 | GV *gv = NULL; | |
2579 | GV **gvp = NULL; | |
2580 | ||
f31bfe61 | 2581 | DEBUG_T( { |
d7559646 | 2582 | SV* tmp = newSVpvs(""); |
3f3939a9 NC |
2583 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
2584 | (IV)CopLINE(PL_curcop), | |
2585 | lex_state_names[PL_lex_state], | |
2586 | exp_name[PL_expect], | |
2587 | pv_display(tmp, s, strlen(s), 0, 60)); | |
2588 | SvREFCNT_dec(tmp); | |
f31bfe61 | 2589 | } ); |
02aa26ce | 2590 | /* check if there's an identifier for us to look at */ |
ba979b31 | 2591 | if (PL_pending_ident) |
f31bfe61 | 2592 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 2593 | |
02aa26ce NT |
2594 | /* no identifier pending identification */ |
2595 | ||
3280af22 | 2596 | switch (PL_lex_state) { |
79072805 LW |
2597 | #ifdef COMMENTARY |
2598 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
2599 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
2600 | break; | |
2601 | #endif | |
2602 | ||
09bef843 | 2603 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 2604 | case LEX_KNOWNEXT: |
3280af22 | 2605 | PL_nexttoke--; |
fe656965 | 2606 | yylval = NEXTVAL_NEXTTOKE; |
3280af22 NIS |
2607 | if (!PL_nexttoke) { |
2608 | PL_lex_state = PL_lex_defer; | |
2609 | PL_expect = PL_lex_expect; | |
2610 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 2611 | } |
f31bfe61 | 2612 | return REPORT(PL_nexttype[PL_nexttoke]); |
79072805 | 2613 | |
02aa26ce | 2614 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 2615 | when we get here, PL_bufptr is at the \ |
02aa26ce | 2616 | */ |
79072805 LW |
2617 | case LEX_INTERPCASEMOD: |
2618 | #ifdef DEBUGGING | |
3280af22 | 2619 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 2620 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 2621 | #endif |
02aa26ce | 2622 | /* handle \E or end of string */ |
3280af22 | 2623 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 2624 | /* if at a \E */ |
3280af22 | 2625 | if (PL_lex_casemods) { |
24c2fff4 | 2626 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 2627 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 2628 | |
3c71ae1e NC |
2629 | if (PL_bufptr != PL_bufend |
2630 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
2631 | PL_bufptr += 2; |
2632 | PL_lex_state = LEX_INTERPCONCAT; | |
a0d0e21e | 2633 | } |
f31bfe61 | 2634 | return REPORT(')'); |
79072805 | 2635 | } |
3280af22 NIS |
2636 | if (PL_bufptr != PL_bufend) |
2637 | PL_bufptr += 2; | |
2638 | PL_lex_state = LEX_INTERPCONCAT; | |
cea2e8a9 | 2639 | return yylex(); |
79072805 LW |
2640 | } |
2641 | else { | |
607df283 | 2642 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
3f3939a9 | 2643 | "### Saw case modifier\n"); }); |
3280af22 | 2644 | s = PL_bufptr + 1; |
2ea5368e JH |
2645 | if (s[1] == '\\' && s[2] == 'E') { |
2646 | PL_bufptr = s + 3; | |
2647 | PL_lex_state = LEX_INTERPCONCAT; | |
2648 | return yylex(); | |
a0d0e21e | 2649 | } |
2ea5368e | 2650 | else { |
0211776e | 2651 | I32 tmp; |
2ea5368e JH |
2652 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) |
2653 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3c71ae1e | 2654 | if ((*s == 'L' || *s == 'U') && |
2ea5368e JH |
2655 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
2656 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
f31bfe61 | 2657 | return REPORT(')'); |
2ea5368e JH |
2658 | } |
2659 | if (PL_lex_casemods > 10) | |
2660 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
2661 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
2662 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
2663 | PL_lex_state = LEX_INTERPCONCAT; | |
fe656965 | 2664 | NEXTVAL_NEXTTOKE.ival = 0; |
2ea5368e JH |
2665 | force_next('('); |
2666 | if (*s == 'l') | |
fe656965 | 2667 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
2ea5368e | 2668 | else if (*s == 'u') |
fe656965 | 2669 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
2ea5368e | 2670 | else if (*s == 'L') |
fe656965 | 2671 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
2ea5368e | 2672 | else if (*s == 'U') |
fe656965 | 2673 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
2ea5368e | 2674 | else if (*s == 'Q') |
fe656965 | 2675 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
2ea5368e JH |
2676 | else |
2677 | Perl_croak(aTHX_ "panic: yylex"); | |
2678 | PL_bufptr = s + 1; | |
a0d0e21e | 2679 | } |
79072805 | 2680 | force_next(FUNC); |
3280af22 NIS |
2681 | if (PL_lex_starts) { |
2682 | s = PL_bufptr; | |
2683 | PL_lex_starts = 0; | |
79072805 LW |
2684 | Aop(OP_CONCAT); |
2685 | } | |
2686 | else | |
cea2e8a9 | 2687 | return yylex(); |
79072805 LW |
2688 | } |
2689 | ||
55497cff | 2690 | case LEX_INTERPPUSH: |
f31bfe61 | 2691 | return REPORT(sublex_push()); |
55497cff | 2692 | |
79072805 | 2693 | case LEX_INTERPSTART: |
3280af22 | 2694 | if (PL_bufptr == PL_bufend) |
f31bfe61 | 2695 | return REPORT(sublex_done()); |
607df283 | 2696 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
3f3939a9 | 2697 | "### Interpolated variable\n"); }); |
3280af22 NIS |
2698 | PL_expect = XTERM; |
2699 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
2700 | PL_lex_state = LEX_INTERPNORMAL; | |
2701 | if (PL_lex_dojoin) { | |
fe656965 | 2702 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 2703 | force_next(','); |
4d1ff10f | 2704 | #ifdef USE_5005THREADS |
533c011a NIS |
2705 | PL_nextval[PL_nexttoke].opval = newOP(OP_THREADSV, 0); |
2706 | PL_nextval[PL_nexttoke].opval->op_targ = find_threadsv("\""); | |
554b3eca MB |
2707 | force_next(PRIVATEREF); |
2708 | #else | |
a0d0e21e | 2709 | force_ident("\"", '$'); |
4d1ff10f | 2710 | #endif /* USE_5005THREADS */ |
fe656965 | 2711 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 2712 | force_next('$'); |
fe656965 | 2713 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 2714 | force_next('('); |
fe656965 | 2715 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
2716 | force_next(FUNC); |
2717 | } | |
3280af22 NIS |
2718 | if (PL_lex_starts++) { |
2719 | s = PL_bufptr; | |
79072805 LW |
2720 | Aop(OP_CONCAT); |
2721 | } | |
cea2e8a9 | 2722 | return yylex(); |
79072805 LW |
2723 | |
2724 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
2725 | if (intuit_more(PL_bufptr)) { |
2726 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
2727 | break; |
2728 | } | |
2729 | /* FALL THROUGH */ | |
2730 | ||
2731 | case LEX_INTERPEND: | |
3280af22 NIS |
2732 | if (PL_lex_dojoin) { |
2733 | PL_lex_dojoin = FALSE; | |
2734 | PL_lex_state = LEX_INTERPCONCAT; | |
f31bfe61 | 2735 | return REPORT(')'); |
79072805 | 2736 | } |
43a16006 | 2737 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 2738 | && SvEVALED(PL_lex_repl)) |
43a16006 | 2739 | { |
e9fa98b2 | 2740 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 2741 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
0e2d6244 | 2742 | PL_lex_repl = NULL; |
e9fa98b2 | 2743 | } |
79072805 LW |
2744 | /* FALLTHROUGH */ |
2745 | case LEX_INTERPCONCAT: | |
2746 | #ifdef DEBUGGING | |
3280af22 | 2747 | if (PL_lex_brackets) |
cea2e8a9 | 2748 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 2749 | #endif |
3280af22 | 2750 | if (PL_bufptr == PL_bufend) |
f31bfe61 | 2751 | return REPORT(sublex_done()); |
79072805 | 2752 | |
3280af22 NIS |
2753 | if (SvIVX(PL_linestr) == '\'') { |
2754 | SV *sv = newSVsv(PL_linestr); | |
2755 | if (!PL_lex_inpat) | |
76e3520e | 2756 | sv = tokeq(sv); |
3280af22 | 2757 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 2758 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 2759 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 2760 | s = PL_bufend; |
79072805 LW |
2761 | } |
2762 | else { | |
3280af22 | 2763 | s = scan_const(PL_bufptr); |
79072805 | 2764 | if (*s == '\\') |
3280af22 | 2765 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 2766 | else |
3280af22 | 2767 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
2768 | } |
2769 | ||
3280af22 | 2770 | if (s != PL_bufptr) { |
fe656965 | 2771 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 2772 | PL_expect = XTERM; |
79072805 | 2773 | force_next(THING); |
3280af22 | 2774 | if (PL_lex_starts++) |
79072805 LW |
2775 | Aop(OP_CONCAT); |
2776 | else { | |
3280af22 | 2777 | PL_bufptr = s; |
cea2e8a9 | 2778 | return yylex(); |
79072805 LW |
2779 | } |
2780 | } | |
2781 | ||
cea2e8a9 | 2782 | return yylex(); |
a0d0e21e | 2783 | case LEX_FORMLINE: |
3280af22 NIS |
2784 | PL_lex_state = LEX_NORMAL; |
2785 | s = scan_formline(PL_bufptr); | |
2786 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
2787 | goto rightbracket; |
2788 | OPERATOR(';'); | |
79072805 LW |
2789 | } |
2790 | ||
3280af22 NIS |
2791 | s = PL_bufptr; |
2792 | PL_oldoldbufptr = PL_oldbufptr; | |
2793 | PL_oldbufptr = s; | |
463ee0b2 LW |
2794 | |
2795 | retry: | |
378cc40b LW |
2796 | switch (*s) { |
2797 | default: | |
7e2040f0 | 2798 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 2799 | goto keylookup; |
cea2e8a9 | 2800 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
2801 | case 4: |
2802 | case 26: | |
2803 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 2804 | case 0: |
3280af22 NIS |
2805 | if (!PL_rsfp) { |
2806 | PL_last_uni = 0; | |
2807 | PL_last_lop = 0; | |
9dea3e30 | 2808 | if (PL_lex_brackets) { |
d2ae4405 JH |
2809 | yyerror((PL_lex_formbrack |
2810 | ? "Format not terminated" | |
2811 | : "Missing right curly or square bracket")); | |
9dea3e30 | 2812 | } |
4e553d73 | 2813 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 2814 | "### Tokener got EOF\n"); |
5f80b19c | 2815 | } ); |
79072805 | 2816 | TOKEN(0); |
463ee0b2 | 2817 | } |
3280af22 | 2818 | if (s++ < PL_bufend) |
a687059c | 2819 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
2820 | PL_last_uni = 0; |
2821 | PL_last_lop = 0; | |
2822 | if (!PL_in_eval && !PL_preambled) { | |
2823 | PL_preambled = TRUE; | |
2824 | sv_setpv(PL_linestr,incl_perldb()); | |
2825 | if (SvCUR(PL_linestr)) | |
d7559646 | 2826 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
2827 | if (PL_preambleav){ |
2828 | while(AvFILLp(PL_preambleav) >= 0) { | |
2829 | SV *tmpsv = av_shift(PL_preambleav); | |
2830 | sv_catsv(PL_linestr, tmpsv); | |
d7559646 | 2831 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 2832 | sv_free(tmpsv); |
2833 | } | |
3280af22 NIS |
2834 | sv_free((SV*)PL_preambleav); |
2835 | PL_preambleav = NULL; | |
91b7def8 | 2836 | } |
3280af22 | 2837 | if (PL_minus_n || PL_minus_p) { |
d7559646 | 2838 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 2839 | if (PL_minus_l) |
d7559646 | 2840 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 2841 | if (PL_minus_a) { |
3280af22 | 2842 | if (PL_minus_F) { |
3c71ae1e NC |
2843 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
2844 | || *PL_splitstr == '"') | |
3280af22 | 2845 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 2846 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 2847 | else { |
6155262a NC |
2848 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
2849 | bytes can be used as quoting characters. :-) */ | |
0473add9 | 2850 | const char *splits = PL_splitstr; |
d7559646 | 2851 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
6155262a NC |
2852 | do { |
2853 | /* Need to \ \s */ | |
0473add9 AL |
2854 | if (*splits == '\\') |
2855 | sv_catpvn(PL_linestr, splits, 1); | |
2856 | sv_catpvn(PL_linestr, splits, 1); | |
2857 | } while (*splits++); | |
6155262a NC |
2858 | /* This loop will embed the trailing NUL of |
2859 | PL_linestr as the last thing it does before | |
2860 | terminating. */ | |
d7559646 | 2861 | sv_catpvs(PL_linestr, ");"); |
54310121 | 2862 | } |
2304df62 AD |
2863 | } |
2864 | else | |
d7559646 | 2865 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 2866 | } |
79072805 | 2867 | } |
d7559646 | 2868 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
2869 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2870 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
0e2d6244 | 2871 | PL_last_lop = PL_last_uni = NULL; |
3f3e5b8d NC |
2872 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
2873 | update_debugger_info(PL_linestr, NULL, 0); | |
79072805 | 2874 | goto retry; |
a687059c | 2875 | } |
e929a76b | 2876 | do { |
aa7440fb | 2877 | bof = PL_rsfp ? TRUE : FALSE; |
0e2d6244 | 2878 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af JH |
2879 | fake_eof: |
2880 | if (PL_rsfp) { | |
2881 | if (PL_preprocess && !PL_in_eval) | |
2882 | (void)PerlProc_pclose(PL_rsfp); | |
2883 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
2884 | PerlIO_clearerr(PL_rsfp); | |
2885 | else | |
2886 | (void)PerlIO_close(PL_rsfp); | |
0e2d6244 | 2887 | PL_rsfp = NULL; |
7e28d3af JH |
2888 | PL_doextract = FALSE; |
2889 | } | |
2890 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
d2ae4405 JH |
2891 | sv_setpv(PL_linestr, |
2892 | (const char *) | |
2893 | (PL_minus_p | |
2894 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
2895 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2896 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
0e2d6244 | 2897 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
2898 | PL_minus_n = PL_minus_p = 0; |
2899 | goto retry; | |
2900 | } | |
2901 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
0e2d6244 | 2902 | PL_last_lop = PL_last_uni = NULL; |
2a8de9e2 | 2903 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
2904 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
2905 | } | |
92a78a40 JH |
2906 | /* If it looks like the start of a BOM or raw UTF-16, |
2907 | * check if it in fact is. */ | |
2908 | else if (bof && | |
2909 | (*s == 0 || | |
2910 | *(U8*)s == 0xEF || | |
2911 | *(U8*)s >= 0xFE || | |
2912 | s[1] == 0)) { | |
226017aa | 2913 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
2914 | # ifdef __GNU_LIBRARY__ |
2915 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
2916 | # define FTELL_FOR_PIPE_IS_BROKEN |
2917 | # endif | |
e3f494f1 JH |
2918 | # else |
2919 | # ifdef __GLIBC__ | |
2920 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
2921 | # define FTELL_FOR_PIPE_IS_BROKEN | |
2922 | # endif | |
2923 | # endif | |
226017aa DD |
2924 | # endif |
2925 | #endif | |
2926 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
2927 | /* This loses the possibility to detect the bof | |
2928 | * situation on perl -P when the libc5 is being used. | |
2929 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
2930 | */ | |
2931 | if (!PL_preprocess) | |
7e28d3af | 2932 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 2933 | #else |
eb160463 | 2934 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 2935 | #endif |
7e28d3af | 2936 | if (bof) { |
3280af22 | 2937 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 2938 | s = swallow_bom((U8*)s); |
e929a76b | 2939 | } |
378cc40b | 2940 | } |
3280af22 | 2941 | if (PL_doextract) { |
a0d0e21e LW |
2942 | /* Incest with pod. */ |
2943 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
2a8de9e2 | 2944 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
2945 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2946 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
0e2d6244 | 2947 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 2948 | PL_doextract = FALSE; |
a0d0e21e | 2949 | } |
4e553d73 | 2950 | } |
463ee0b2 | 2951 | incline(s); |
3280af22 NIS |
2952 | } while (PL_doextract); |
2953 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3f3e5b8d NC |
2954 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
2955 | update_debugger_info(PL_linestr, NULL, 0); | |
3280af22 | 2956 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
0e2d6244 | 2957 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 2958 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 2959 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 2960 | s++; |
a0d0e21e | 2961 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 2962 | s++; |
0e2d6244 | 2963 | d = NULL; |
3280af22 | 2964 | if (!PL_in_eval) { |
44a8e56a | 2965 | if (*s == '#' && *(s+1) == '!') |
2966 | d = s + 2; | |
2967 | #ifdef ALTERNATE_SHEBANG | |
2968 | else { | |
a00f3e00 | 2969 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 2970 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
2971 | d = s + (sizeof(as) - 1); | |
2972 | } | |
2973 | #endif /* ALTERNATE_SHEBANG */ | |
2974 | } | |
2975 | if (d) { | |
b8378b72 | 2976 | char *ipath; |
774d564b | 2977 | char *ipathend; |
b8378b72 | 2978 | |
774d564b | 2979 | while (isSPACE(*d)) |
b8378b72 CS |
2980 | d++; |
2981 | ipath = d; | |
774d564b | 2982 | while (*d && !isSPACE(*d)) |
2983 | d++; | |
2984 | ipathend = d; | |
2985 | ||
2986 | #ifdef ARG_ZERO_IS_SCRIPT | |
2987 | if (ipathend > ipath) { | |
2988 | /* | |
2989 | * HP-UX (at least) sets argv[0] to the script name, | |
2990 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
2991 | * at least, set argv[0] to the basename of the Perl | |
2992 | * interpreter. So, having found "#!", we'll set it right. | |
2993 | */ | |
b977d03a NC |
2994 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
2995 | SVt_PV)); /* $^X */ | |
774d564b | 2996 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 2997 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 2998 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 2999 | SvSETMAGIC(x); |
3000 | } | |
556c1dec JH |
3001 | else { |
3002 | STRLEN blen; | |
3003 | STRLEN llen; | |
71a0dd65 | 3004 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
a2592645 | 3005 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3006 | if (llen < blen) { |
3007 | bstart += blen - llen; | |
3008 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3009 | sv_setpvn(x, ipath, ipathend - ipath); | |
3010 | SvSETMAGIC(x); | |
3011 | } | |
3012 | } | |
3013 | } | |
774d564b | 3014 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3015 | } |
774d564b | 3016 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3017 | |
3018 | /* | |
3019 | * Look for options. | |
3020 | */ | |
748a9306 | 3021 | d = instr(s,"perl -"); |
84e30d1a | 3022 | if (!d) { |
748a9306 | 3023 | d = instr(s,"perl"); |
84e30d1a GS |
3024 | #if defined(DOSISH) |
3025 | /* avoid getting into infinite loops when shebang | |
3026 | * line contains "Perl" rather than "perl" */ | |
3027 | if (!d) { | |
3028 | for (d = ipathend-4; d >= ipath; --d) { | |
3029 | if ((*d == 'p' || *d == 'P') | |
3030 | && !ibcmp(d, "perl", 4)) | |
3031 | { | |
3032 | break; | |
3033 | } | |
3034 | } | |
3035 | if (d < ipath) | |
0e2d6244 | 3036 | d = NULL; |
84e30d1a GS |
3037 | } |
3038 | #endif | |
3039 | } | |
44a8e56a | 3040 | #ifdef ALTERNATE_SHEBANG |
3041 | /* | |
3042 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3043 | * character that can be part of a Perl expression, then if | |
3044 | * we see it but not "perl", we're probably looking at the | |
3045 | * start of Perl code, not a request to hand off to some | |
3046 | * other interpreter. Similarly, if "perl" is there, but | |
3047 | * not in the first 'word' of the line, we assume the line | |
3048 | * contains the start of the Perl program. | |
44a8e56a | 3049 | */ |
3050 | if (d && *s != '#') { | |
24c2fff4 | 3051 | const char *c = ipath; |
44a8e56a | 3052 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3053 | c++; | |
3054 | if (c < d) | |
0e2d6244 | 3055 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3056 | else |
3057 | *s = '#'; /* Don't try to parse shebang line */ | |
3058 | } | |
774d564b | 3059 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3060 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3061 | if (!d && |
44a8e56a | 3062 | *s == '#' && |
774d564b | 3063 | ipathend > ipath && |
3280af22 | 3064 | !PL_minus_c && |
748a9306 | 3065 | !instr(s,"indir") && |
3280af22 | 3066 | instr(PL_origargv[0],"perl")) |
748a9306 | 3067 | { |
fe20fd30 | 3068 | char **newargv; |
9f68db38 | 3069 | |
774d564b | 3070 | *ipathend = '\0'; |
3071 | s = ipathend + 1; | |
3280af22 | 3072 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3073 | s++; |
3280af22 | 3074 | if (s < PL_bufend) { |
cd7a8267 | 3075 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3076 | newargv[1] = s; |
3280af22 | 3077 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3078 | s++; |
3079 | *s = '\0'; | |
3280af22 | 3080 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3081 | } |
3082 | else | |
3280af22 | 3083 | newargv = PL_origargv; |
774d564b | 3084 | newargv[0] = ipath; |
629185f5 | 3085 | PERL_FPU_PRE_EXEC |
b4748376 | 3086 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
629185f5 | 3087 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3088 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3089 | } |
bf4acbe4 | 3090 | #endif |
748a9306 | 3091 | if (d) { |
8e7b0921 AL |
3092 | while (*d && !isSPACE(*d)) |
3093 | d++; | |
3094 | while (SPACE_OR_TAB(*d)) | |
3095 | d++; | |
748a9306 LW |
3096 | |
3097 | if (*d++ == '-') { | |
24c2fff4 | 3098 | const bool switches_done = PL_doswitches; |
145ab0cc NC |
3099 | const U32 oldpdb = PL_perldb; |
3100 | const bool oldn = PL_minus_n; | |
3101 | const bool oldp = PL_minus_p; | |
3102 | ||
8cc95fdb | 3103 | do { |
7f8d406d | 3104 | if (*d == 'M' || *d == 'm') { |
a2592645 | 3105 | const char * const m = d; |
43b2f713 AL |
3106 | while (*d && !isSPACE(*d)) |
3107 | d++; | |
cea2e8a9 | 3108 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3109 | (int)(d - m), m); |
3110 | } | |
3111 | d = moreswitches(d); | |
3112 | } while (d); | |
f824e39a JH |
3113 | if (PL_doswitches && !switches_done) { |
3114 | int argc = PL_origargc; | |
3115 | char **argv = PL_origargv; | |
3116 | do { | |
3117 | argc--,argv++; | |
3118 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3119 | init_argv_symbols(argc,argv); | |
3120 | } | |
155aba94 GS |
3121 | if ((PERLDB_LINE && !oldpdb) || |
3122 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3123 | /* if we have already added "LINE: while (<>) {", |
3124 | we must not do it again */ | |
748a9306 | 3125 | { |
2a8de9e2 | 3126 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3127 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3128 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
0e2d6244 | 3129 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3130 | PL_preambled = FALSE; |
84902520 | 3131 | if (PERLDB_LINE) |
3280af22 | 3132 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3133 | goto retry; |
3134 | } | |
a0d0e21e | 3135 | } |
79072805 | 3136 | } |
9f68db38 | 3137 | } |
79072805 | 3138 | } |
3280af22 NIS |
3139 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3140 | PL_bufptr = s; | |
3141 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3142 | return yylex(); |
ae986130 | 3143 | } |
378cc40b | 3144 | goto retry; |
4fdae800 | 3145 | case '\r': |
6a27c188 | 3146 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3147 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3148 | Perl_croak(aTHX_ |
cc507455 | 3149 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3150 | #endif |
4fdae800 | 3151 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3152 | #ifdef MACOS_TRADITIONAL |
3153 | case '\312': | |
3154 | #endif | |
378cc40b LW |
3155 | s++; |
3156 | goto retry; | |
378cc40b | 3157 | case '#': |
e929a76b | 3158 | case '\n': |
3280af22 | 3159 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3160 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3161 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3162 | CopLINE_dec(PL_curcop); | |
3163 | incline(s); | |
3164 | } | |
a28a866d NC |
3165 | d = s; |
3166 | while (d < PL_bufend && *d != '\n') | |
3167 | d++; | |
3168 | if (d < PL_bufend) | |
3169 | d++; | |
3170 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3171 | Perl_croak(aTHX_ "panic: input overflow"); | |
3172 | s = d; | |
463ee0b2 | 3173 | incline(s); |
3280af22 NIS |
3174 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3175 | PL_bufptr = s; | |
3176 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3177 | return yylex(); |
a687059c | 3178 | } |
378cc40b | 3179 | } |
a687059c | 3180 | else { |
378cc40b | 3181 | *s = '\0'; |
3280af22 | 3182 | PL_bufend = s; |
a687059c | 3183 | } |
378cc40b LW |
3184 | goto retry; |
3185 | case '-': | |
79072805 | 3186 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3187 | I32 ftst = 0; |
0211776e | 3188 | char tmp; |
e5edeb50 | 3189 | |
378cc40b | 3190 | s++; |
3280af22 | 3191 | PL_bufptr = s; |
748a9306 LW |
3192 | tmp = *s++; |
3193 | ||
bf4acbe4 | 3194 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3195 | s++; |
3196 | ||
3197 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3198 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
86d06bda | 3199 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
3200 | OPERATOR('-'); /* unary minus */ |
3201 | } | |
3280af22 | 3202 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3203 | switch (tmp) { |
e5edeb50 JH |
3204 | case 'r': ftst = OP_FTEREAD; break; |
3205 | case 'w': ftst = OP_FTEWRITE; break; | |
3206 | case 'x': ftst = OP_FTEEXEC; break; | |
3207 | case 'o': ftst = OP_FTEOWNED; break; | |
3208 | case 'R': ftst = OP_FTRREAD; break; | |
3209 | case 'W': ftst = OP_FTRWRITE; break; | |
3210 | case 'X': ftst = OP_FTREXEC; break; | |
3211 | case 'O': ftst = OP_FTROWNED; break; | |
3212 | case 'e': ftst = OP_FTIS; break; | |
3213 | case 'z': ftst = OP_FTZERO; break; | |
3214 | case 's': ftst = OP_FTSIZE; break; | |
3215 | case 'f': ftst = OP_FTFILE; break; | |
3216 | case 'd': ftst = OP_FTDIR; break; | |
3217 | case 'l': ftst = OP_FTLINK; break; | |
3218 | case 'p': ftst = OP_FTPIPE; break; | |
3219 | case 'S': ftst = OP_FTSOCK; break; | |
3220 | case 'u': ftst = OP_FTSUID; break; | |
3221 | case 'g': ftst = OP_FTSGID; break; | |
3222 | case 'k': ftst = OP_FTSVTX; break; | |
3223 | case 'b': ftst = OP_FTBLK; break; | |
3224 | case 'c': ftst = OP_FTCHR; break; | |
3225 | case 't': ftst = OP_FTTTY; break; | |
3226 | case 'T': ftst = OP_FTTEXT; break; | |
3227 | case 'B': ftst = OP_FTBINARY; break; | |
3228 | case 'M': case 'A': case 'C': | |
b977d03a | 3229 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
3230 | switch (tmp) { |
3231 | case 'M': ftst = OP_FTMTIME; break; | |
3232 | case 'A': ftst = OP_FTATIME; break; | |
3233 | case 'C': ftst = OP_FTCTIME; break; | |
3234 | default: break; | |
3235 | } | |
3236 | break; | |
378cc40b | 3237 | default: |
378cc40b LW |
3238 | break; |
3239 | } | |
e5edeb50 | 3240 | if (ftst) { |
eb160463 | 3241 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3242 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
3f3939a9 | 3243 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 3244 | } ); |
e5edeb50 JH |
3245 | FTST(ftst); |
3246 | } | |
3247 | else { | |
3248 | /* Assume it was a minus followed by a one-letter named | |
3249 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3250 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a8eb0fba | 3251 | "### '-%c' looked like a file test but was not\n", |
6155262a | 3252 | (int) tmp); |
5f80b19c | 3253 | } ); |
f050833e | 3254 | s = --PL_bufptr; |
e5edeb50 | 3255 | } |
378cc40b | 3256 | } |
0211776e NC |
3257 | { |
3258 | const char tmp = *s++; | |
3259 | if (*s == tmp) { | |
3260 | s++; | |
3261 | if (PL_expect == XOPERATOR) | |
3262 | TERM(POSTDEC); | |
3263 | else | |
3264 | OPERATOR(PREDEC); | |
3265 | } | |
3266 | else if (*s == '>') { | |
3267 | s++; | |
fe656965 | 3268 | s = SKIPSPACE1(s); |
0211776e NC |
3269 | if (isIDFIRST_lazy_if(s,UTF)) { |
3270 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
3271 | TOKEN(ARROW); | |
3272 | } | |
3273 | else if (*s == '$') | |
3274 | OPERATOR(ARROW); | |
3275 | else | |
3276 | TERM(ARROW); | |
3277 | } | |
3280af22 | 3278 | if (PL_expect == XOPERATOR) |
0211776e NC |
3279 | Aop(OP_SUBTRACT); |
3280 | else { | |
3281 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3282 | check_uni(); | |
3283 | OPERATOR('-'); /* unary minus */ | |
79072805 | 3284 | } |
2f3197b3 | 3285 | } |
79072805 | 3286 | |
378cc40b | 3287 | case '+': |
0211776e NC |
3288 | { |
3289 | const char tmp = *s++; | |
3290 | if (*s == tmp) { | |
3291 | s++; | |
3292 | if (PL_expect == XOPERATOR) | |
3293 | TERM(POSTINC); | |
3294 | else | |
3295 | OPERATOR(PREINC); | |
3296 | } | |
3280af22 | 3297 | if (PL_expect == XOPERATOR) |
0211776e NC |
3298 | Aop(OP_ADD); |
3299 | else { | |
3300 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3301 | check_uni(); | |
3302 | OPERATOR('+'); | |
3303 | } | |
2f3197b3 | 3304 | } |
a687059c | 3305 | |
378cc40b | 3306 | case '*': |
3280af22 NIS |
3307 | if (PL_expect != XOPERATOR) { |
3308 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
3309 | PL_expect = XOPERATOR; | |
3310 | force_ident(PL_tokenbuf, '*'); | |
3311 | if (!*PL_tokenbuf) | |
a0d0e21e | 3312 | PREREF('*'); |
79072805 | 3313 | TERM('*'); |
a687059c | 3314 | } |
79072805 LW |
3315 | s++; |
3316 | if (*s == '*') { | |
a687059c | 3317 | s++; |
79072805 | 3318 | PWop(OP_POW); |
a687059c | 3319 | } |
79072805 LW |
3320 | Mop(OP_MULTIPLY); |
3321 | ||
378cc40b | 3322 | case '%': |
3280af22 | 3323 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 3324 | ++s; |
3325 | Mop(OP_MODULO); | |
a687059c | 3326 | } |
3280af22 NIS |
3327 | PL_tokenbuf[0] = '%'; |
3328 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
3329 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3330 | PREREF('%'); |
a687059c | 3331 | } |
3280af22 | 3332 | PL_pending_ident = '%'; |
bbce6d69 | 3333 | TERM('%'); |
a687059c | 3334 | |
378cc40b | 3335 | case '^': |
79072805 | 3336 | s++; |
a0d0e21e | 3337 | BOop(OP_BIT_XOR); |
79072805 | 3338 | case '[': |
3280af22 | 3339 | PL_lex_brackets++; |
79072805 | 3340 | /* FALL THROUGH */ |
378cc40b | 3341 | case '~': |
378cc40b | 3342 | case ',': |
0211776e NC |
3343 | { |
3344 | const char tmp = *s++; | |
3345 | OPERATOR(tmp); | |
3346 | } | |
a0d0e21e LW |
3347 | case ':': |
3348 | if (s[1] == ':') { | |
3349 | len = 0; | |
0211776e | 3350 | goto just_a_word_zero_gv; |
a0d0e21e LW |
3351 | } |
3352 | s++; | |
09bef843 SB |
3353 | switch (PL_expect) { |
3354 | OP *attrs; | |
3355 | case XOPERATOR: | |
3356 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
3357 | break; | |
3358 | PL_bufptr = s; /* update in case we back off */ | |
3359 | goto grabattrs; | |
3360 | case XATTRBLOCK: | |
3361 | PL_expect = XBLOCK; | |
3362 | goto grabattrs; | |
3363 | case XATTRTERM: | |
3364 | PL_expect = XTERMBLOCK; | |
3365 | grabattrs: | |
fe656965 | 3366 | s = PEEKSPACE(s); |
5900599a | 3367 | attrs = NULL; |
7e2040f0 | 3368 | while (isIDFIRST_lazy_if(s,UTF)) { |
0211776e | 3369 | I32 tmp; |
9039bfa6 | 3370 | SV *sv; |
09bef843 | 3371 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
f9829d6b GS |
3372 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) { |
3373 | if (tmp < 0) tmp = -tmp; | |
3374 | switch (tmp) { | |
3375 | case KEY_or: | |
3376 | case KEY_and: | |
3377 | case KEY_for: | |
3378 | case KEY_unless: | |
3379 | case KEY_if: | |
3380 | case KEY_while: | |
3381 | case KEY_until: | |
3382 | goto got_attrs; | |
3383 | default: | |
3384 | break; | |
3385 | } | |
3386 | } | |
9039bfa6 | 3387 | sv = newSVpvn(s, len); |
09bef843 SB |
3388 | if (*d == '(') { |
3389 | d = scan_str(d,TRUE,TRUE); | |
3390 | if (!d) { | |
09bef843 SB |
3391 | /* MUST advance bufptr here to avoid bogus |
3392 | "at end of line" context messages from yyerror(). | |
3393 | */ | |
3394 | PL_bufptr = s + len; | |
3395 | yyerror("Unterminated attribute parameter in attribute list"); | |
3396 | if (attrs) | |
3397 | op_free(attrs); | |
9039bfa6 | 3398 | sv_free(sv); |
f31bfe61 | 3399 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
3400 | } |
3401 | } | |
3402 | if (PL_lex_stuff) { | |
09bef843 SB |
3403 | sv_catsv(sv, PL_lex_stuff); |
3404 | attrs = append_elem(OP_LIST, attrs, | |
3405 | newSVOP(OP_CONST, 0, sv)); | |
3406 | SvREFCNT_dec(PL_lex_stuff); | |
0e2d6244 | 3407 | PL_lex_stuff = NULL; |
09bef843 SB |
3408 | } |
3409 | else { | |
9039bfa6 BS |
3410 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
3411 | sv_free(sv); | |
7a3458b7 NC |
3412 | if (PL_in_my == KEY_our) |
3413 | #ifdef USE_ITHREADS | |
3414 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
3415 | #else | |
3ecde996 | 3416 | /*EMPTY*/; /* skip to avoid loading attributes.pm */ |
7a3458b7 | 3417 | #endif |
a00f3e00 | 3418 | else |
7a3458b7 NC |
3419 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
3420 | } | |
3421 | ||
d3cea301 SB |
3422 | /* NOTE: any CV attrs applied here need to be part of |
3423 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
9039bfa6 BS |
3424 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
3425 | sv_free(sv); | |
78f9721b | 3426 | CvLVALUE_on(PL_compcv); |
9039bfa6 BS |
3427 | } |
3428 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
3429 | sv_free(sv); | |
78f9721b | 3430 | CvLOCKED_on(PL_compcv); |
9039bfa6 BS |
3431 | } |
3432 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
3433 | sv_free(sv); | |
78f9721b | 3434 | CvMETHOD_on(PL_compcv); |
9039bfa6 | 3435 | } |
78f9721b SM |
3436 | /* After we've set the flags, it could be argued that |
3437 | we don't need to do the attributes.pm-based setting | |
3438 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
3439 | flags. To experiment with that, uncomment the |
3440 | following "else". (Note that's already been | |
3441 | uncommented. That keeps the above-applied built-in | |
3442 | attributes from being intercepted (and possibly | |
3443 | rejected) by a package's attribute routines, but is | |
3444 | justified by the performance win for the common case | |
3445 | of applying only built-in attributes.) */ | |
0256094b | 3446 | else |
78f9721b SM |
3447 | attrs = append_elem(OP_LIST, attrs, |
3448 | newSVOP(OP_CONST, 0, | |
9039bfa6 | 3449 | sv)); |
09bef843 | 3450 | } |
fe656965 | 3451 | s = PEEKSPACE(d); |
0120eecf | 3452 | if (*s == ':' && s[1] != ':') |
fe656965 | 3453 | s = PEEKSPACE(s+1); |
0120eecf GS |
3454 | else if (s == d) |
3455 | break; /* require real whitespace or :'s */ | |
fe656965 | 3456 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 3457 | } |
0211776e NC |
3458 | { |
3459 | const char tmp | |
3460 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
3461 | if (*s != ';' && *s != '}' && *s != tmp | |
3462 | && (tmp != '=' || *s != ')')) { | |
3463 | const char q = ((*s == '\'') ? '"' : '\''); | |
3464 | /* If here for an expression, and parsed no attrs, back | |
3465 | off. */ | |
3466 | if (tmp == '=' && !attrs) { | |
3467 | s = PL_bufptr; | |
3468 | break; | |
3469 | } | |
3470 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
3471 | context messages from yyerror(). | |
3472 | */ | |
3473 | PL_bufptr = s; | |
d2ae4405 JH |
3474 | yyerror( (*s |
3475 | ? Perl_form(aTHX_ "Invalid separator character " | |
3476 | "%c%c%c in attribute list", q, *s, q) | |
3477 | : "Unterminated attribute list" ) ); | |
0211776e NC |
3478 | if (attrs) |
3479 | op_free(attrs); | |
3480 | OPERATOR(':'); | |
09bef843 | 3481 | } |
09bef843 | 3482 | } |
f9829d6b | 3483 | got_attrs: |
09bef843 | 3484 | if (attrs) { |
fe656965 | 3485 | NEXTVAL_NEXTTOKE.opval = attrs; |
09bef843 SB |
3486 | force_next(THING); |
3487 | } | |
3488 | TOKEN(COLONATTR); | |
3489 | } | |
a0d0e21e | 3490 | OPERATOR(':'); |
8990e307 LW |
3491 | case '(': |
3492 | s++; | |
3280af22 NIS |
3493 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
3494 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 3495 | else |
3280af22 | 3496 | PL_expect = XTERM; |
fe656965 | 3497 | s = SKIPSPACE1(s); |
a0d0e21e | 3498 | TOKEN('('); |
378cc40b | 3499 | case ';': |
f4dd75d9 | 3500 | CLINE; |
0211776e NC |
3501 | { |
3502 | const char tmp = *s++; | |
3503 | OPERATOR(tmp); | |
3504 | } | |
378cc40b | 3505 | case ')': |
0211776e NC |
3506 | { |
3507 | const char tmp = *s++; | |
fe656965 | 3508 | s = SKIPSPACE1(s); |
0211776e NC |
3509 | if (*s == '{') |
3510 | PREBLOCK(tmp); | |
3511 | TERM(tmp); | |
3512 | } | |
79072805 LW |
3513 | case ']': |
3514 | s++; | |
3280af22 | 3515 | if (PL_lex_brackets <= 0) |
d98d5fff | 3516 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 3517 | else |
3280af22 NIS |
3518 | --PL_lex_brackets; |
3519 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3520 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 3521 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 3522 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3523 | } |
3524 | } | |
4633a7c4 | 3525 | TERM(']'); |
79072805 LW |
3526 | case '{': |
3527 | leftbracket: | |
79072805 | 3528 | s++; |
3280af22 | 3529 | if (PL_lex_brackets > 100) { |
bda19f49 | 3530 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 3531 | } |
3280af22 | 3532 | switch (PL_expect) { |
a0d0e21e | 3533 | case XTERM: |
3280af22 | 3534 | if (PL_lex_formbrack) { |
a0d0e21e LW |
3535 | s--; |
3536 | PRETERMBLOCK(DO); | |
3537 | } | |
3280af22 NIS |
3538 | if (PL_oldoldbufptr == PL_last_lop) |
3539 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3540 | else |
3280af22 | 3541 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 3542 | OPERATOR(HASHBRACK); |
a0d0e21e | 3543 | case XOPERATOR: |
bf4acbe4 | 3544 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 3545 | s++; |
44a8e56a | 3546 | d = s; |
3280af22 NIS |
3547 | PL_tokenbuf[0] = '\0'; |
3548 | if (d < PL_bufend && *d == '-') { | |
3549 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 3550 | d++; |
bf4acbe4 | 3551 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 3552 | d++; |
3553 | } | |
7e2040f0 | 3554 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 3555 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 3556 | FALSE, &len); |
bf4acbe4 | 3557 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
3558 | d++; |
3559 | if (*d == '}') { | |
24c2fff4 | 3560 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 3561 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
3562 | if (minus) | |
3563 | force_next('-'); | |
748a9306 LW |
3564 | } |
3565 | } | |
3566 | /* FALL THROUGH */ | |
09bef843 | 3567 | case XATTRBLOCK: |
748a9306 | 3568 | case XBLOCK: |
3280af22 NIS |
3569 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
3570 | PL_expect = XSTATE; | |
a0d0e21e | 3571 | break; |
09bef843 | 3572 | case XATTRTERM: |
a0d0e21e | 3573 | case XTERMBLOCK: |
3280af22 NIS |
3574 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
3575 | PL_expect = XSTATE; | |
a0d0e21e LW |
3576 | break; |
3577 | default: { | |
24c2fff4 | 3578 | const char *t; |
3280af22 NIS |
3579 | if (PL_oldoldbufptr == PL_last_lop) |
3580 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3581 | else |
3280af22 | 3582 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
fe656965 | 3583 | s = SKIPSPACE1(s); |
8452ff4b SB |
3584 | if (*s == '}') { |
3585 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
3586 | PL_expect = XTERM; | |
3587 | /* This hack is to get the ${} in the message. */ | |
3588 | PL_bufptr = s+1; | |
3589 | yyerror("syntax error"); | |
3590 | break; | |
3591 | } | |
a0d0e21e | 3592 | OPERATOR(HASHBRACK); |
8452ff4b | 3593 | } |
b8a4b1be GS |
3594 | /* This hack serves to disambiguate a pair of curlies |
3595 | * as being a block or an anon hash. Normally, expectation | |
3596 | * determines that, but in cases where we're not in a | |
3597 | * position to expect anything in particular (like inside | |
3598 | * eval"") we have to resolve the ambiguity. This code | |
3599 | * covers the case where the first term in the curlies is a | |
3600 | * quoted string. Most other cases need to be explicitly | |
5332c881 | 3601 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
3602 | * curly in order to force resolution as an anon hash. |
3603 | * | |
3604 | * XXX should probably propagate the outer expectation | |
3605 | * into eval"" to rely less on this hack, but that could | |
3606 | * potentially break current behavior of eval"". | |
3607 | * GSAR 97-07-21 | |
3608 | */ | |
3609 | t = s; | |
3610 | if (*s == '\'' || *s == '"' || *s == '`') { | |
3611 | /* common case: get past first string, handling escapes */ | |
3280af22 | 3612 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
3613 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
3614 | t++; | |
3615 | t++; | |
a0d0e21e | 3616 | } |
b8a4b1be | 3617 | else if (*s == 'q') { |
3280af22 | 3618 | if (++t < PL_bufend |
b8a4b1be | 3619 | && (!isALNUM(*t) |
3280af22 | 3620 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
3621 | && !isALNUM(*t)))) |
3622 | { | |
e3b9cd39 | 3623 | /* skip q//-like construct */ |
24c2fff4 | 3624 | const char *tmps; |
b8a4b1be GS |
3625 | char open, close, term; |
3626 | I32 brackets = 1; | |
3627 | ||
3280af22 | 3628 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 3629 | t++; |
e3b9cd39 JH |
3630 | /* check for q => */ |
3631 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
3632 | OPERATOR(HASHBRACK); | |
3633 | } | |
b8a4b1be GS |
3634 | term = *t; |
3635 | open = term; | |
3636 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
3637 | term = tmps[5]; | |
3638 | close = term; | |
3639 | if (open == close) | |
3280af22 NIS |
3640 | for (t++; t < PL_bufend; t++) { |
3641 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 3642 | t++; |
6d07e5e9 | 3643 | else if (*t == open) |
b8a4b1be GS |
3644 | break; |
3645 | } | |
e3b9cd39 | 3646 | else { |
3280af22 NIS |
3647 | for (t++; t < PL_bufend; t++) { |
3648 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 3649 | t++; |
6d07e5e9 | 3650 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
3651 | break; |
3652 | else if (*t == open) | |
3653 | brackets++; | |
3654 | } | |
e3b9cd39 JH |
3655 | } |
3656 | t++; | |
b8a4b1be | 3657 | } |
e3b9cd39 JH |
3658 | else |
3659 | /* skip plain q word */ | |
3660 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
3661 | t += UTF8SKIP(t); | |
a0d0e21e | 3662 | } |
7e2040f0 | 3663 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 3664 | t += UTF8SKIP(t); |
7e2040f0 | 3665 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 3666 | t += UTF8SKIP(t); |
a0d0e21e | 3667 | } |
3280af22 | 3668 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 3669 | t++; |
b8a4b1be GS |
3670 | /* if comma follows first term, call it an anon hash */ |
3671 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 3672 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 3673 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 3674 | OPERATOR(HASHBRACK); |
3280af22 | 3675 | if (PL_expect == XREF) |
4e4e412b | 3676 | PL_expect = XTERM; |
a0d0e21e | 3677 | else { |
3280af22 NIS |
3678 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
3679 | PL_expect = XSTATE; | |
a0d0e21e | 3680 | } |
8990e307 | 3681 | } |
a0d0e21e | 3682 | break; |
463ee0b2 | 3683 | } |
57843af0 | 3684 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 3685 | if (isSPACE(*s) || *s == '#') |
3280af22 | 3686 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 3687 | TOKEN('{'); |
378cc40b | 3688 | case '}': |
79072805 LW |
3689 | rightbracket: |
3690 | s++; | |
3280af22 | 3691 | if (PL_lex_brackets <= 0) |
d98d5fff | 3692 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 3693 | else |
3280af22 | 3694 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 3695 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
3696 | PL_lex_formbrack = 0; |
3697 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3698 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
3699 | if (PL_expect & XFAKEBRACK) { |
3700 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
3701 | PL_lex_state = LEX_INTERPEND; |
3702 | PL_bufptr = s; | |
cea2e8a9 | 3703 | return yylex(); /* ignore fake brackets */ |
79072805 | 3704 | } |
fa83b5b6 | 3705 | if (*s == '-' && s[1] == '>') |
3280af22 | 3706 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 3707 | else if (*s != '[' && *s != '{') |
3280af22 | 3708 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3709 | } |
3710 | } | |
9059aa12 LW |
3711 | if (PL_expect & XFAKEBRACK) { |
3712 | PL_expect &= XENUMMASK; | |
3280af22 | 3713 | PL_bufptr = s; |
cea2e8a9 | 3714 | return yylex(); /* ignore fake brackets */ |
748a9306 | 3715 | } |
79072805 LW |
3716 | force_next('}'); |
3717 | TOKEN(';'); | |
378cc40b LW |
3718 | case '&': |
3719 | s++; | |
0211776e | 3720 | if (*s++ == '&') |
a0d0e21e | 3721 | AOPERATOR(ANDAND); |
378cc40b | 3722 | s--; |
3280af22 | 3723 | if (PL_expect == XOPERATOR) { |
f5e9f069 NC |
3724 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
3725 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 3726 | { |
57843af0 | 3727 | CopLINE_dec(PL_curcop); |
9014280d | 3728 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 3729 | CopLINE_inc(PL_curcop); |
463ee0b2 | 3730 | } |
79072805 | 3731 | BAop(OP_BIT_AND); |
463ee0b2 | 3732 | } |
79072805 | 3733 | |
3280af22 NIS |
3734 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
3735 | if (*PL_tokenbuf) { | |
3736 | PL_expect = XOPERATOR; | |
3737 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 3738 | } |
79072805 LW |
3739 | else |
3740 | PREREF('&'); | |
c07a80fd | 3741 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
3742 | TERM('&'); |
3743 | ||
378cc40b LW |
3744 | case '|': |
3745 | s++; | |
0211776e | 3746 | if (*s++ == '|') |
a0d0e21e | 3747 | AOPERATOR(OROR); |
378cc40b | 3748 | s--; |
79072805 | 3749 | BOop(OP_BIT_OR); |
378cc40b LW |
3750 | case '=': |
3751 | s++; | |
748a9306 | 3752 | { |
0211776e NC |
3753 | const char tmp = *s++; |
3754 | if (tmp == '=') | |
3755 | Eop(OP_EQ); | |
3756 | if (tmp == '>') | |
3757 | OPERATOR(','); | |
3758 | if (tmp == '~') | |
3759 | PMop(OP_MATCH); | |
3760 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
3761 | && strchr("+-*/%.^&|<",tmp)) | |
3762 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
3763 | "Reversed %c= operator",(int)tmp); | |
3764 | s--; | |
3765 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
3766 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
3767 | { | |
3768 | if (PL_in_eval && !PL_rsfp) { | |
3769 | d = PL_bufend; | |
3770 | while (s < d) { | |
3771 | if (*s++ == '\n') { | |
3772 | incline(s); | |
3773 | if (strnEQ(s,"=cut",4)) { | |
3774 | s = strchr(s,'\n'); | |
3775 | if (s) | |
3776 | s++; | |
3777 | else | |
3778 | s = d; | |
3779 | incline(s); | |
3780 | goto retry; | |
3781 | } | |
3782 | } | |
a5f75d66 | 3783 | } |
0211776e | 3784 | goto retry; |
a5f75d66 | 3785 | } |
0211776e NC |
3786 | s = PL_bufend; |
3787 | PL_doextract = TRUE; | |
3788 | goto retry; | |
a5f75d66 | 3789 | } |
a0d0e21e | 3790 | } |
3280af22 | 3791 | if (PL_lex_brackets < PL_lex_formbrack) { |
8e7b0921 | 3792 | const char *t = s; |
51882d45 | 3793 | #ifdef PERL_STRICT_CR |
8e7b0921 | 3794 | while (SPACE_OR_TAB(*t)) |
51882d45 | 3795 | #else |
8e7b0921 | 3796 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 3797 | #endif |
8e7b0921 | 3798 | t++; |
a0d0e21e LW |
3799 | if (*t == '\n' || *t == '#') { |
3800 | s--; | |
3280af22 | 3801 | PL_expect = XBLOCK; |
a0d0e21e LW |
3802 | goto leftbracket; |
3803 | } | |
79072805 | 3804 | } |
a0d0e21e LW |
3805 | yylval.ival = 0; |
3806 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
3807 | case '!': |
3808 | s++; | |
0211776e NC |
3809 | { |
3810 | const char tmp = *s++; | |
3811 | if (tmp == '=') | |
3812 | Eop(OP_NE); | |
3813 | if (tmp == '~') | |
3814 | PMop(OP_NOT); | |
3815 | } | |
378cc40b LW |
3816 | s--; |
3817 | OPERATOR('!'); | |
3818 | case '<': | |
3280af22 | 3819 | if (PL_expect != XOPERATOR) { |
93a17b20 | 3820 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 3821 | check_uni(); |
79072805 LW |
3822 | if (s[1] == '<') |
3823 | s = scan_heredoc(s); | |
3824 | else | |
3825 | s = scan_inputsymbol(s); | |
3826 | TERM(sublex_start()); | |
378cc40b LW |
3827 | } |
3828 | s++; | |
0211776e NC |
3829 | { |
3830 | char tmp = *s++; | |
3831 | if (tmp == '<') | |
3832 | SHop(OP_LEFT_SHIFT); | |
3833 | if (tmp == '=') { | |
3834 | tmp = *s++; | |
3835 | if (tmp == '>') | |
3836 | Eop(OP_NCMP); | |
3837 | s--; | |
3838 | Rop(OP_LE); | |
3839 | } | |
395c3793 | 3840 | } |
378cc40b | 3841 | s--; |
79072805 | 3842 | Rop(OP_LT); |
378cc40b LW |
3843 | case '>': |
3844 | s++; | |
0211776e NC |
3845 | { |
3846 | const char tmp = *s++; | |
3847 | if (tmp == '>') | |
3848 | SHop(OP_RIGHT_SHIFT); | |
43b2f713 | 3849 | else if (tmp == '=') |
0211776e NC |
3850 | Rop(OP_GE); |
3851 | } | |
378cc40b | 3852 | s--; |
79072805 | 3853 | Rop(OP_GT); |
378cc40b LW |
3854 | |
3855 | case '$': | |
bbce6d69 | 3856 | CLINE; |
3857 | ||
3280af22 NIS |
3858 | if (PL_expect == XOPERATOR) { |
3859 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3860 | PL_expect = XTERM; | |
260c88e8 | 3861 | deprecate_old((char *)commaless_variable_list); |
f31bfe61 | 3862 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 3863 | } |
8990e307 | 3864 | } |
a0d0e21e | 3865 | |
7e2040f0 | 3866 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 3867 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
3868 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
3869 | sizeof PL_tokenbuf - 1, FALSE); | |
3870 | if (PL_expect == XOPERATOR) | |
3871 | no_op("Array length", s); | |
3280af22 | 3872 | if (!PL_tokenbuf[1]) |
a0d0e21e | 3873 | PREREF(DOLSHARP); |
3280af22 NIS |
3874 | PL_expect = XOPERATOR; |
3875 | PL_pending_ident = '#'; | |
463ee0b2 | 3876 | TOKEN(DOLSHARP); |
79072805 | 3877 | } |
bbce6d69 | 3878 | |
3280af22 | 3879 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
3880 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
3881 | sizeof PL_tokenbuf - 1, FALSE); | |
3882 | if (PL_expect == XOPERATOR) | |
3883 | no_op("Scalar", s); | |
3280af22 NIS |
3884 | if (!PL_tokenbuf[1]) { |
3885 | if (s == PL_bufend) | |
bbce6d69 | 3886 | yyerror("Final $ should be \\$ or $name"); |
3887 | PREREF('$'); | |
8990e307 | 3888 | } |
a0d0e21e | 3889 | |
bbce6d69 | 3890 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 3891 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 3892 | yylval.opval = newSVOP(OP_CONST, 0, |
2cb86c03 | 3893 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 3894 | yylval.opval->op_private = OPpCONST_ARYBASE; |
3895 | TERM(THING); | |
3896 | } | |
3897 | ||
ff68c719 | 3898 | d = s; |
0211776e NC |
3899 | { |
3900 | const char tmp = *s; | |
3901 | if (PL_lex_state == LEX_NORMAL) | |
fe656965 | 3902 | s = SKIPSPACE1(s); |
ff68c719 | 3903 | |
0211776e NC |
3904 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
3905 | && intuit_more(s)) { | |
3906 | if (*s == '[') { | |
3907 | PL_tokenbuf[0] = '@'; | |
3908 | if (ckWARN(WARN_SYNTAX)) { | |
8e7b0921 AL |
3909 | char *t = s+1; |
3910 | ||
3911 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
3912 | t++; | |
0211776e | 3913 | if (*t++ == ',') { |
fe656965 | 3914 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
0211776e NC |
3915 | while (t < PL_bufend && *t != ']') |
3916 | t++; | |
9014280d | 3917 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
0211776e | 3918 | "Multidimensional syntax %.*s not supported", |
22d66770 | 3919 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
0211776e | 3920 | } |
748a9306 | 3921 | } |
93a17b20 | 3922 | } |
0211776e NC |
3923 | else if (*s == '{') { |
3924 | char *t; | |
3925 | PL_tokenbuf[0] = '%'; | |
3926 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
3927 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
3928 | { | |
3929 | char tmpbuf[sizeof PL_tokenbuf]; | |
8e7b0921 AL |
3930 | do { |
3931 | t++; | |
3932 | } while (isSPACE(*t)); | |
0211776e | 3933 | if (isIDFIRST_lazy_if(t,UTF)) { |
5900599a | 3934 | STRLEN dummylen; |
0211776e | 3935 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5900599a | 3936 | &dummylen); |
8e7b0921 AL |
3937 | while (isSPACE(*t)) |
3938 | t++; | |
0211776e NC |
3939 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
3940 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
3941 | "You need to quote \"%s\"", | |
3942 | tmpbuf); | |
3943 | } | |
3944 | } | |
3945 | } | |
93a17b20 | 3946 | } |
bbce6d69 | 3947 | |
0211776e NC |
3948 | PL_expect = XOPERATOR; |
3949 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
3950 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
3951 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
3952 | PL_expect = XOPERATOR; | |
3953 | else if (strchr("$@\"'`q", *s)) | |
3954 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
3955 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
3956 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
3957 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
3958 | char tmpbuf[sizeof PL_tokenbuf]; | |
3959 | int t2; | |
3960 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
3961 | if ((t2 = keyword(tmpbuf, len))) { | |
3962 | /* binary operators exclude handle interpretations */ | |
3963 | switch (t2) { | |
3964 | case -KEY_x: | |
3965 | case -KEY_eq: | |
3966 | case -KEY_ne: | |
3967 | case -KEY_gt: | |
3968 | case -KEY_lt: | |
3969 | case -KEY_ge: | |
3970 | case -KEY_le: | |
3971 | case -KEY_cmp: | |
3972 | break; | |
3973 | default: | |
3974 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
3975 | break; | |
3976 | } | |
3977 | } | |
3978 | else { | |
3979 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
3980 | } |
3981 | } | |
0211776e NC |
3982 | else if (isDIGIT(*s)) |
3983 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
3984 | else if (*s == '.' && isDIGIT(s[1])) | |
3985 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
3986 | else if ((*s == '?' || *s == '-' || *s == '+') | |
3987 | && !isSPACE(s[1]) && s[1] != '=') | |
3988 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
3989 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
3990 | && s[2] != '=') | |
3991 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 3992 | } |
bbce6d69 | 3993 | } |
3280af22 | 3994 | PL_pending_ident = '$'; |
79072805 | 3995 | TOKEN('$'); |
378cc40b LW |
3996 | |
3997 | case '@': | |
3280af22 | 3998 | if (PL_expect == XOPERATOR) |
bbce6d69 | 3999 | no_op("Array", s); |
3280af22 NIS |
4000 | PL_tokenbuf[0] = '@'; |
4001 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4002 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4003 | PREREF('@'); |
4004 | } | |
3280af22 | 4005 | if (PL_lex_state == LEX_NORMAL) |
fe656965 | 4006 | s = SKIPSPACE1(s); |
3280af22 | 4007 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4008 | if (*s == '{') |
3280af22 | 4009 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4010 | |
4011 | /* Warn about @ where they meant $. */ | |
f5e9f069 NC |
4012 | if (*s == '[' || *s == '{') { |
4013 | if (ckWARN(WARN_SYNTAX)) { | |
24c2fff4 | 4014 | const char *t = s + 1; |
7e2040f0 | 4015 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4016 | t++; |
4017 | if (*t == '}' || *t == ']') { | |
4018 | t++; | |
fe656965 | 4019 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4020 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4021 | "Scalar value %.*s better written as $%.*s", |
22d66770 NC |
4022 | (int)(t-PL_bufptr), PL_bufptr, |
4023 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4024 | } |
93a17b20 LW |
4025 | } |
4026 | } | |
463ee0b2 | 4027 | } |
3280af22 | 4028 | PL_pending_ident = '@'; |
79072805 | 4029 | TERM('@'); |
378cc40b LW |
4030 | |
4031 | case '/': /* may either be division or pattern */ | |
4032 | case '?': /* may either be conditional or pattern */ | |
3280af22 | 4033 | if (PL_expect != XOPERATOR) { |
c277df42 | 4034 | /* Disable warning on "study /blah/" */ |
4e553d73 NIS |
4035 | if (PL_oldoldbufptr == PL_last_uni |
4036 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
7e2040f0 GS |
4037 | || memNE(PL_last_uni, "study", 5) |
4038 | || isALNUM_lazy_if(PL_last_uni+5,UTF))) | |
c277df42 | 4039 | check_uni(); |
8782bef2 | 4040 | s = scan_pat(s,OP_MATCH); |
79072805 | 4041 | TERM(sublex_start()); |
378cc40b | 4042 | } |
0211776e NC |
4043 | { |
4044 | char tmp = *s++; | |
4045 | if (tmp == '/') | |
4046 | Mop(OP_DIVIDE); | |
4047 | OPERATOR(tmp); | |
4048 | } | |
378cc40b LW |
4049 | |
4050 | case '.': | |
51882d45 GS |
4051 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4052 | #ifdef PERL_STRICT_CR | |
4053 | && s[1] == '\n' | |
4054 | #else | |
4055 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4056 | #endif | |
4057 | && (s == PL_linestart || s[-1] == '\n') ) | |
4058 | { | |
3280af22 NIS |
4059 | PL_lex_formbrack = 0; |
4060 | PL_expect = XSTATE; | |
79072805 LW |
4061 | goto rightbracket; |
4062 | } | |
3280af22 | 4063 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
0211776e | 4064 | char tmp = *s++; |
a687059c LW |
4065 | if (*s == tmp) { |
4066 | s++; | |
2f3197b3 LW |
4067 | if (*s == tmp) { |
4068 | s++; | |
79072805 | 4069 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4070 | } |
4071 | else | |
79072805 | 4072 | yylval.ival = 0; |
378cc40b | 4073 | OPERATOR(DOTDOT); |
a687059c | 4074 | } |
3280af22 | 4075 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4076 | check_uni(); |
79072805 | 4077 | Aop(OP_CONCAT); |
378cc40b LW |
4078 | } |
4079 | /* FALL THROUGH */ | |
4080 | case '0': case '1': case '2': case '3': case '4': | |
4081 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4082 | s = scan_num(s, &yylval); |
86d06bda | 4083 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 4084 | if (PL_expect == XOPERATOR) |
8990e307 | 4085 | no_op("Number",s); |
79072805 LW |
4086 | TERM(THING); |
4087 | ||
4088 | case '\'': | |
09bef843 | 4089 | s = scan_str(s,FALSE,FALSE); |
86d06bda | 4090 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4091 | if (PL_expect == XOPERATOR) { |
4092 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4093 | PL_expect = XTERM; | |
260c88e8 | 4094 | deprecate_old((char *)commaless_variable_list); |
f31bfe61 | 4095 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4096 | } |
463ee0b2 | 4097 | else |
8990e307 | 4098 | no_op("String",s); |
463ee0b2 | 4099 | } |
79072805 | 4100 | if (!s) |
43b2f713 | 4101 | missingterm(NULL); |
79072805 LW |
4102 | yylval.ival = OP_CONST; |
4103 | TERM(sublex_start()); | |
4104 | ||
4105 | case '"': | |
09bef843 | 4106 | s = scan_str(s,FALSE,FALSE); |
86d06bda | 4107 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4108 | if (PL_expect == XOPERATOR) { |
4109 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4110 | PL_expect = XTERM; | |
260c88e8 | 4111 | deprecate_old((char *)commaless_variable_list); |
f31bfe61 | 4112 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4113 | } |
463ee0b2 | 4114 | else |
8990e307 | 4115 | no_op("String",s); |
463ee0b2 | 4116 | } |
79072805 | 4117 | if (!s) |
43b2f713 | 4118 | missingterm(NULL); |
4633a7c4 | 4119 | yylval.ival = OP_CONST; |
71a0dd65 NC |
4120 | /* FIXME. I think that this can be const if char *d is replaced by |
4121 | more localised variables. */ | |
3280af22 | 4122 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4123 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4124 | yylval.ival = OP_STRINGIFY; |
4125 | break; | |
4126 | } | |
4127 | } | |
79072805 LW |
4128 | TERM(sublex_start()); |
4129 | ||
4130 | case '`': | |
09bef843 | 4131 | s = scan_str(s,FALSE,FALSE); |
86d06bda | 4132 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 4133 | if (PL_expect == XOPERATOR) |
8990e307 | 4134 | no_op("Backticks",s); |
79072805 | 4135 | if (!s) |
43b2f713 | 4136 | missingterm(NULL); |
79072805 LW |
4137 | yylval.ival = OP_BACKTICK; |
4138 | set_csh(); | |
4139 | TERM(sublex_start()); | |
4140 | ||
4141 | case '\\': | |
4142 | s++; | |
f5e9f069 | 4143 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 4144 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 4145 | *s, *s); |
3280af22 | 4146 | if (PL_expect == XOPERATOR) |
8990e307 | 4147 | no_op("Backslash",s); |
79072805 LW |
4148 | OPERATOR(REFGEN); |
4149 | ||
a7cb1f99 | 4150 | case 'v': |
e526c9e6 | 4151 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
24c2fff4 | 4152 | char *start = s + 2; |
dd629d5b | 4153 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
4154 | start++; |
4155 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 4156 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
4157 | TERM(THING); |
4158 | } | |
e526c9e6 | 4159 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
62ec34bd | 4160 | else if (!isALPHA(*start) && (PL_expect == XTERM || PL_expect == XREF || PL_expect == XSTATE)) { |
43b2f713 | 4161 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
24c2fff4 | 4162 | const char c = *start; |
e526c9e6 GS |
4163 | GV *gv; |
4164 | *start = '\0'; | |
057b822e | 4165 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
4166 | *start = c; |
4167 | if (!gv) { | |
b73d6f50 | 4168 | s = scan_num(s, &yylval); |
e526c9e6 GS |
4169 | TERM(THING); |
4170 | } | |
4171 | } | |
a7cb1f99 GS |
4172 | } |
4173 | goto keylookup; | |
79072805 | 4174 | case 'x': |
3280af22 | 4175 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
4176 | s++; |
4177 | Mop(OP_REPEAT); | |
2f3197b3 | 4178 | } |
79072805 LW |
4179 | goto keylookup; |
4180 | ||
378cc40b | 4181 | case '_': |
79072805 LW |
4182 | case 'a': case 'A': |
4183 | case 'b': case 'B': | |
4184 | case 'c': case 'C': | |
4185 | case 'd': case 'D': | |
4186 | case 'e': case 'E': | |
4187 | case 'f': case 'F': | |
4188 | case 'g': case 'G': | |
4189 | case 'h': case 'H': | |
4190 | case 'i': case 'I': | |
4191 | case 'j': case 'J': | |
4192 | case 'k': case 'K': | |
4193 | case 'l': case 'L': | |
4194 | case 'm': case 'M': | |
4195 | case 'n': case 'N': | |
4196 | case 'o': case 'O': | |
4197 | case 'p': case 'P': | |
4198 | case 'q': case 'Q': | |
4199 | case 'r': case 'R': | |
4200 | case 's': case 'S': | |
4201 | case 't': case 'T': | |
4202 | case 'u': case 'U': | |
a7cb1f99 | 4203 | case 'V': |
79072805 LW |
4204 | case 'w': case 'W': |
4205 | case 'X': | |
4206 | case 'y': case 'Y': | |
4207 | case 'z': case 'Z': | |
4208 | ||
49dc05e3 | 4209 | keylookup: { |
0211776e | 4210 | I32 tmp; |
d2ae4405 JH |
4211 | |
4212 | orig_keyword = 0; | |
4213 | gv = NULL; | |
4214 | gvp = NULL; | |
49dc05e3 | 4215 | |
3280af22 NIS |
4216 | PL_bufptr = s; |
4217 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 4218 | |
4219 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
4220 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
4221 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
4222 | (PL_tokenbuf[0] == 'q' && | |
4223 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 4224 | |
4225 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 4226 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
4227 | goto just_a_word; |
4228 | ||
3643fb5f | 4229 | d = s; |
3280af22 | 4230 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
4231 | d++; /* no comments skipped here, or s### is misparsed */ |
4232 | ||
4233 | /* Is this a label? */ | |
3280af22 NIS |
4234 | if (!tmp && PL_expect == XSTATE |
4235 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 4236 | s = d + 1; |
3280af22 | 4237 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 4238 | CLINE; |
4239 | TOKEN(LABEL); | |
3643fb5f CS |
4240 | } |
4241 | ||
4242 | /* Check for keywords */ | |
3280af22 | 4243 | tmp = keyword(PL_tokenbuf, len); |
748a9306 LW |
4244 | |
4245 | /* Is this a word before a => operator? */ | |
1c3923b3 | 4246 | if (*d == '=' && d[1] == '>') { |
748a9306 | 4247 | CLINE; |
057b822e NC |
4248 | yylval.opval |
4249 | = (OP*)newSVOP(OP_CONST, 0, | |
4250 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
4251 | yylval.opval->op_private = OPpCONST_BARE; |
4252 | TERM(WORD); | |
4253 | } | |
4254 | ||
a0d0e21e | 4255 | if (tmp < 0) { /* second-class keyword? */ |
4358d444 NC |
4256 | GV *ogv = NULL; /* override (winner) */ |
4257 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 4258 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 4259 | CV *cv; |
e4720ea4 | 4260 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
4261 | (cv = GvCVu(gv))) |
4262 | { | |
4263 | if (GvIMPORTED_CV(gv)) | |
4264 | ogv = gv; | |
4265 | else if (! CvMETHOD(cv)) | |
4266 | hgv = gv; | |
4267 | } | |
4268 | if (!ogv && | |
3280af22 NIS |
4269 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
4270 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
4271 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
4272 | { | |
4273 | ogv = gv; | |
4274 | } | |
4275 | } | |
4276 | if (ogv) { | |
5b7ea690 | 4277 | orig_keyword = tmp; |
56f7f34b | 4278 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
4279 | } |
4280 | else if (gv && !gvp | |
4281 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 4282 | && GvCVu(gv) |
d7559646 | 4283 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
4284 | { |
4285 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 4286 | } |
56f7f34b CS |
4287 | else { /* no override */ |
4288 | tmp = -tmp; | |
ac206dc8 | 4289 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 4290 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
4291 | "dump() better written as CORE::dump()"); |
4292 | } | |
0e2d6244 | 4293 | gv = NULL; |
56f7f34b | 4294 | gvp = 0; |
f5e9f069 NC |
4295 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
4296 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 4297 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 4298 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 4299 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 4300 | } |
a0d0e21e LW |
4301 | } |
4302 | ||
4303 | reserved_word: | |
4304 | switch (tmp) { | |
79072805 LW |
4305 | |
4306 | default: /* not a keyword */ | |
0211776e NC |
4307 | /* Trade off - by using this evil construction we can pull the |
4308 | variable gv into the block labelled keylookup. If not, then | |
4309 | we have to give it function scope so that the goto from the | |
4310 | earlier ':' case doesn't bypass the initialisation. */ | |
4311 | if (0) { | |
4312 | just_a_word_zero_gv: | |
4313 | gv = NULL; | |
4314 | gvp = NULL; | |
145ab0cc | 4315 | orig_keyword = 0; |
0211776e | 4316 | } |
93a17b20 | 4317 | just_a_word: { |
96e4d5b1 | 4318 | SV *sv; |
ce29ac45 | 4319 | int pkgname = 0; |
24c2fff4 | 4320 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
0211776e | 4321 | CV *cv; |
8990e307 LW |
4322 | |
4323 | /* Get the rest if it looks like a package qualifier */ | |
4324 | ||
155aba94 | 4325 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 4326 | STRLEN morelen; |
3280af22 | 4327 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
4328 | TRUE, &morelen); |
4329 | if (!morelen) | |
cea2e8a9 | 4330 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 4331 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 4332 | len += morelen; |
ce29ac45 | 4333 | pkgname = 1; |
a0d0e21e | 4334 | } |
8990e307 | 4335 | |
3280af22 NIS |
4336 | if (PL_expect == XOPERATOR) { |
4337 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 4338 | CopLINE_dec(PL_curcop); |
9014280d | 4339 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4340 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
4341 | } |
4342 | else | |
54310121 | 4343 | no_op("Bareword",s); |
463ee0b2 | 4344 | } |
8990e307 | 4345 | |
c3e0f903 GS |
4346 | /* Look for a subroutine with this name in current package, |
4347 | unless name is "Foo::", in which case Foo is a bearword | |
4348 | (and a package name). */ | |
4349 | ||
4350 | if (len > 2 && | |
3280af22 | 4351 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 4352 | { |
057b822e | 4353 | if (ckWARN(WARN_BAREWORD) |
e4720ea4 | 4354 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 4355 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 4356 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 4357 | PL_tokenbuf); |
c3e0f903 | 4358 | len -= 2; |
3280af22 | 4359 | PL_tokenbuf[len] = '\0'; |
0e2d6244 | 4360 | gv = NULL; |
c3e0f903 GS |
4361 | gvp = 0; |
4362 | } | |
4363 | else { | |
a92f283d NC |
4364 | if (!gv) { |
4365 | /* Mustn't actually add anything to a symbol table. | |
4366 | But also don't want to "initialise" any placeholder | |
4367 | constants that might already be there into full | |
4368 | blown PVGVs with attached PVCV. */ | |
e4720ea4 AL |
4369 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
4370 | GV_NOADD_NOINIT, SVt_PVCV); | |
a92f283d | 4371 | } |
057b822e | 4372 | len = 0; |
c3e0f903 GS |
4373 | } |
4374 | ||
4375 | /* if we saw a global override before, get the right name */ | |
8990e307 | 4376 | |
49dc05e3 | 4377 | if (gvp) { |
d7559646 | 4378 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 4379 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 4380 | } |
04851bb3 NC |
4381 | else { |
4382 | /* If len is 0, newSVpv does strlen(), which is correct. | |
4383 | If len is non-zero, then it will be the true length, | |
4384 | and so the scalar will be created correctly. */ | |
4385 | sv = newSVpv(PL_tokenbuf,len); | |
4386 | } | |
8990e307 | 4387 | |
a0d0e21e LW |
4388 | /* Presume this is going to be a bareword of some sort. */ |
4389 | ||
4390 | CLINE; | |
49dc05e3 | 4391 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 4392 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
4393 | /* UTF-8 package name? */ |
4394 | if (UTF && !IN_BYTES && | |
5e7e76a3 | 4395 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 4396 | SvUTF8_on(sv); |
a0d0e21e | 4397 | |
c3e0f903 GS |
4398 | /* And if "Foo::", then that's what it certainly is. */ |
4399 | ||
4400 | if (len) | |
4401 | goto safe_bareword; | |
4402 | ||
0211776e NC |
4403 | /* Do the explicit type check so that we don't need to force |
4404 | the initialisation of the symbol table to have a real GV. | |
4405 | Beware - gv may not really be a PVGV, cv may not really be | |
4406 | a PVCV, (because of the space optimisations that gv_init | |
4407 | understands) But they're true if for this symbol there is | |
4408 | respectively a typeglob and a subroutine. | |
4409 | */ | |
4410 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
4411 | /* Real typeglob, so get the real subroutine: */ | |
4412 | ? GvCVu(gv) | |
4413 | /* A proxy for a subroutine in this package? */ | |
4414 | : SvOK(gv) ? (CV *) gv : NULL) | |
4415 | : NULL; | |
4416 | ||
8990e307 LW |
4417 | /* See if it's the indirect object for a list operator. */ |
4418 | ||
3280af22 NIS |
4419 | if (PL_oldoldbufptr && |
4420 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
4421 | (PL_oldoldbufptr == PL_last_lop |
4422 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 4423 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
4424 | (PL_expect == XREF || |
4425 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 4426 | { |
748a9306 LW |
4427 | bool immediate_paren = *s == '('; |
4428 | ||
a0d0e21e | 4429 | /* (Now we can afford to cross potential line boundary.) */ |
fe656965 | 4430 | s = SKIPSPACE2(s,nextnextwhite); |
a0d0e21e LW |
4431 | |
4432 | /* Two barewords in a row may indicate method call. */ | |
4433 | ||
a92f283d NC |
4434 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
4435 | (tmp = intuit_method(s, gv, cv))) | |
f31bfe61 | 4436 | return REPORT(tmp); |
a0d0e21e LW |
4437 | |
4438 | /* If not a declared subroutine, it's an indirect object. */ | |
4439 | /* (But it's an indir obj regardless for sort.) */ | |
4440 | ||
7948272d | 4441 | if ( !immediate_paren && (PL_last_lop_op == OP_SORT || |
0211776e | 4442 | ((!gv || !cv) && |
a9ef352a | 4443 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 4444 | PL_last_lop_op != OP_GREPSTART)))) |
a9ef352a | 4445 | { |
3280af22 | 4446 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 4447 | goto bareword; |
93a17b20 LW |
4448 | } |
4449 | } | |
8990e307 | 4450 | |
3280af22 | 4451 | PL_expect = XOPERATOR; |
8990e307 | 4452 | s = skipspace(s); |
1c3923b3 GS |
4453 | |
4454 | /* Is this a word before a => operator? */ | |
ce29ac45 | 4455 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
4456 | CLINE; |
4457 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 4458 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 4459 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
4460 | TERM(WORD); |
4461 | } | |
4462 | ||
4463 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 4464 | if (*s == '(') { |
79072805 | 4465 | CLINE; |
0211776e | 4466 | if (cv) { |
8e7b0921 AL |
4467 | d = s + 1; |
4468 | while (SPACE_OR_TAB(*d)) | |
4469 | d++; | |
a92f283d | 4470 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 4471 | s = d + 1; |
4472 | goto its_constant; | |
4473 | } | |
4474 | } | |
fe656965 | 4475 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 4476 | PL_expect = XOPERATOR; |
93a17b20 | 4477 | force_next(WORD); |
c07a80fd | 4478 | yylval.ival = 0; |
463ee0b2 | 4479 | TOKEN('&'); |
79072805 | 4480 | } |
93a17b20 | 4481 | |
a0d0e21e | 4482 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 4483 | |
a92f283d | 4484 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
4485 | PL_last_lop = PL_oldbufptr; |
4486 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 4487 | PREBLOCK(METHOD); |
463ee0b2 LW |
4488 | } |
4489 | ||
8990e307 LW |
4490 | /* If followed by a bareword, see if it looks like indir obj. */ |
4491 | ||
5b7ea690 JH |
4492 | if (!orig_keyword |
4493 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
a92f283d | 4494 | && (tmp = intuit_method(s, gv, cv))) |
f31bfe61 | 4495 | return REPORT(tmp); |
93a17b20 | 4496 | |
8990e307 LW |
4497 | /* Not a method, so call it a subroutine (if defined) */ |
4498 | ||
0211776e | 4499 | if (cv) { |
0453d815 | 4500 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 4501 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4502 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 4503 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 4504 | /* Check for a constant sub */ |
a92f283d | 4505 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 4506 | its_constant: |
4507 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
be2d5e07 | 4508 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 4509 | yylval.opval->op_private = 0; |
4510 | TOKEN(WORD); | |
89bfa8cd | 4511 | } |
4512 | ||
a5f75d66 | 4513 | /* Resolve to GV now. */ |
057b822e NC |
4514 | if (SvTYPE(gv) != SVt_PVGV) { |
4515 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); | |
4516 | assert (SvTYPE(gv) == SVt_PVGV); | |
4517 | /* cv must have been some sort of placeholder, so | |
4518 | now needs replacing with a real code reference. */ | |
4519 | cv = GvCV(gv); | |
4520 | } | |
057b822e | 4521 | |
a5f75d66 AD |
4522 | op_free(yylval.opval); |
4523 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 4524 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 4525 | PL_last_lop = PL_oldbufptr; |
bf848113 | 4526 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 4527 | /* Is there a prototype? */ |
17184076 NC |
4528 | if (SvPOK(cv)) |
4529 | { | |
5900599a NC |
4530 | STRLEN protolen; |
4531 | const char *proto = SvPV_const((SV*)cv, protolen); | |
4532 | if (!protolen) | |
4633a7c4 | 4533 | TERM(FUNC0SUB); |
29652248 | 4534 | if (*proto == '$' && proto[1] == '\0') |
4633a7c4 | 4535 | OPERATOR(UNIOPSUB); |
750300e4 JH |
4536 | while (*proto == ';') |
4537 | proto++; | |
7a52d87a | 4538 | if (*proto == '&' && *s == '{') { |
d2ae4405 JH |
4539 | sv_setpv(PL_subname, |
4540 | (const char *) | |
4541 | (PL_curstash ? | |
4542 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
4543 | PREBLOCK(LSTOPSUB); |
4544 | } | |
a9ef352a | 4545 | } |
fe656965 | 4546 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 4547 | PL_expect = XTERM; |
8990e307 LW |
4548 | force_next(WORD); |
4549 | TOKEN(NOAMP); | |
4550 | } | |
748a9306 | 4551 | |
8990e307 LW |
4552 | /* Call it a bare word */ |
4553 | ||
5603f27d GS |
4554 | if (PL_hints & HINT_STRICT_SUBS) |
4555 | yylval.opval->op_private |= OPpCONST_STRICT; | |
4556 | else { | |
4557 | bareword: | |
f5e9f069 NC |
4558 | if (lastchar != '-') { |
4559 | if (ckWARN(WARN_RESERVED)) { | |
8e7b0921 AL |
4560 | d = PL_tokenbuf; |
4561 | while (isLOWER(*d)) | |
4562 | d++; | |
238ae712 | 4563 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 4564 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
4565 | PL_tokenbuf); |
4566 | } | |
748a9306 LW |
4567 | } |
4568 | } | |
c3e0f903 GS |
4569 | |
4570 | safe_bareword: | |
3c71ae1e NC |
4571 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
4572 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 4573 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4574 | "Operator or semicolon missing before %c%s", |
3280af22 | 4575 | lastchar, PL_tokenbuf); |
9014280d | 4576 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4577 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
4578 | lastchar, lastchar); |
4579 | } | |
93a17b20 | 4580 | TOKEN(WORD); |
79072805 | 4581 | } |
79072805 | 4582 | |
68dc0745 | 4583 | case KEY___FILE__: |
46fc3d4c | 4584 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 4585 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 4586 | TERM(THING); |
4587 | ||
79072805 | 4588 | case KEY___LINE__: |
cf2093f6 | 4589 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 4590 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 4591 | TERM(THING); |
68dc0745 | 4592 | |
4593 | case KEY___PACKAGE__: | |
4594 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 4595 | (PL_curstash |
26ab6a78 | 4596 | ? newSVpv(HvNAME_get(PL_curstash), 0) |
3280af22 | 4597 | : &PL_sv_undef)); |
79072805 | 4598 | TERM(THING); |
79072805 | 4599 | |
e50aee73 | 4600 | case KEY___DATA__: |
79072805 LW |
4601 | case KEY___END__: { |
4602 | GV *gv; | |
3280af22 | 4603 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
a00f3e00 | 4604 | const char *pname = "main"; |
3280af22 | 4605 | if (PL_tokenbuf[2] == 'D') |
26ab6a78 | 4606 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
057b822e NC |
4607 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
4608 | SVt_PVIO); | |
a5f75d66 | 4609 | GvMULTI_on(gv); |
79072805 | 4610 | if (!GvIO(gv)) |
a0d0e21e | 4611 | GvIOp(gv) = newIO(); |
3280af22 | 4612 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
4613 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
4614 | { | |
24c2fff4 | 4615 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
4616 | fcntl(fd,F_SETFD,fd >= 3); |
4617 | } | |
79072805 | 4618 | #endif |
fd049845 | 4619 | /* Mark this internal pseudo-handle as clean */ |
4620 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 4621 | if (PL_preprocess) |
50952442 | 4622 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 4623 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 4624 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 4625 | else |
50952442 | 4626 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
4627 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
4628 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 4629 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 4630 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
4631 | if (PL_bufend-PL_bufptr > 2 |
4632 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
4633 | { |
4634 | Off_t loc = 0; | |
50952442 | 4635 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
4636 | loc = PerlIO_tell(PL_rsfp); |
4637 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
4638 | } | |
2986a63f JH |
4639 | #ifdef NETWARE |
4640 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
4641 | #else | |
c39cd008 | 4642 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 4643 | #endif /* NETWARE */ |
1143fce0 JH |
4644 | #ifdef PERLIO_IS_STDIO /* really? */ |
4645 | # if defined(__BORLANDC__) | |
cb359b41 JH |
4646 | /* XXX see note in do_binmode() */ |
4647 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
4648 | # endif |
4649 | #endif | |
c39cd008 GS |
4650 | if (loc > 0) |
4651 | PerlIO_seek(PL_rsfp, loc, 0); | |
4652 | } | |
4653 | } | |
4654 | #endif | |
7948272d | 4655 | #ifdef PERLIO_LAYERS |
d34f9d2e JH |
4656 | if (!IN_BYTES) { |
4657 | if (UTF) | |
4658 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
4659 | else if (PL_encoding) { | |
4660 | SV *name; | |
4661 | dSP; | |
4662 | ENTER; | |
4663 | SAVETMPS; | |
4664 | PUSHMARK(sp); | |
4665 | EXTEND(SP, 1); | |
4666 | XPUSHs(PL_encoding); | |
4667 | PUTBACK; | |
4668 | call_method("name", G_SCALAR); | |
4669 | SPAGAIN; | |
4670 | name = POPs; | |
4671 | PUTBACK; | |
a00f3e00 | 4672 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
d34f9d2e | 4673 | Perl_form(aTHX_ ":encoding(%"SVf")", |
f2139bd3 | 4674 | (void*)name)); |
d34f9d2e JH |
4675 | FREETMPS; |
4676 | LEAVE; | |
4677 | } | |
4678 | } | |
7948272d | 4679 | #endif |
0e2d6244 | 4680 | PL_rsfp = NULL; |
79072805 LW |
4681 | } |
4682 | goto fake_eof; | |
e929a76b | 4683 | } |
de3bb511 | 4684 | |
8990e307 | 4685 | case KEY_AUTOLOAD: |
ed6116ce | 4686 | case KEY_DESTROY: |
79072805 | 4687 | case KEY_BEGIN: |
7d30b5c4 | 4688 | case KEY_CHECK: |
7d07dbc2 | 4689 | case KEY_INIT: |
7d30b5c4 | 4690 | case KEY_END: |
3280af22 NIS |
4691 | if (PL_expect == XSTATE) { |
4692 | s = PL_bufptr; | |
93a17b20 | 4693 | goto really_sub; |
79072805 LW |
4694 | } |
4695 | goto just_a_word; | |
4696 | ||
a0d0e21e LW |
4697 | case KEY_CORE: |
4698 | if (*s == ':' && s[1] == ':') { | |
4699 | s += 2; | |
748a9306 | 4700 | d = s; |
3280af22 | 4701 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
6798c92b GS |
4702 | if (!(tmp = keyword(PL_tokenbuf, len))) |
4703 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); | |
a0d0e21e LW |
4704 | if (tmp < 0) |
4705 | tmp = -tmp; | |
f7e580e2 NC |
4706 | else if (tmp == KEY_require || tmp == KEY_do) |
4707 | /* that's a way to remember we saw "CORE::" */ | |
4708 | orig_keyword = tmp; | |
a0d0e21e LW |
4709 | goto reserved_word; |
4710 | } | |
4711 | goto just_a_word; | |
4712 | ||
463ee0b2 LW |
4713 | case KEY_abs: |
4714 | UNI(OP_ABS); | |
4715 | ||
79072805 LW |
4716 | case KEY_alarm: |
4717 | UNI(OP_ALARM); | |
4718 | ||
4719 | case KEY_accept: | |
a0d0e21e | 4720 | LOP(OP_ACCEPT,XTERM); |
79072805 | 4721 | |
463ee0b2 LW |
4722 | case KEY_and: |
4723 | OPERATOR(ANDOP); | |
4724 | ||
79072805 | 4725 | case KEY_atan2: |
a0d0e21e | 4726 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 4727 | |
79072805 | 4728 | case KEY_bind: |
a0d0e21e | 4729 | LOP(OP_BIND,XTERM); |
79072805 LW |
4730 | |
4731 | case KEY_binmode: | |
1c1fc3ea | 4732 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
4733 | |
4734 | case KEY_bless: | |
a0d0e21e | 4735 | LOP(OP_BLESS,XTERM); |
79072805 LW |
4736 | |
4737 | case KEY_chop: | |
4738 | UNI(OP_CHOP); | |
4739 | ||
4740 | case KEY_continue: | |
4741 | PREBLOCK(CONTINUE); | |
4742 | ||
4743 | case KEY_chdir: | |
b977d03a NC |
4744 | /* may use HOME */ |
4745 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
4746 | UNI(OP_CHDIR); |
4747 | ||
4748 | case KEY_close: | |
4749 | UNI(OP_CLOSE); | |
4750 | ||
4751 | case KEY_closedir: | |
4752 | UNI(OP_CLOSEDIR); | |
4753 | ||
4754 | case KEY_cmp: | |
4755 | Eop(OP_SCMP); | |
4756 | ||
4757 | case KEY_caller: | |
4758 | UNI(OP_CALLER); | |
4759 | ||
4760 | case KEY_crypt: | |
4761 | #ifdef FCRYPT | |
f4c556ac GS |
4762 | if (!PL_cryptseen) { |
4763 | PL_cryptseen = TRUE; | |
de3bb511 | 4764 | init_des(); |
f4c556ac | 4765 | } |
a687059c | 4766 | #endif |
a0d0e21e | 4767 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
4768 | |
4769 | case KEY_chmod: | |
a0d0e21e | 4770 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
4771 | |
4772 | case KEY_chown: | |
a0d0e21e | 4773 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
4774 | |
4775 | case KEY_connect: | |
a0d0e21e | 4776 | LOP(OP_CONNECT,XTERM); |
79072805 | 4777 | |
463ee0b2 LW |
4778 | case KEY_chr: |
4779 | UNI(OP_CHR); | |
4780 | ||
79072805 LW |
4781 | case KEY_cos: |
4782 | UNI(OP_COS); | |
4783 | ||
4784 | case KEY_chroot: | |
4785 | UNI(OP_CHROOT); | |
4786 | ||
4787 | case KEY_do: | |
fe656965 | 4788 | s = SKIPSPACE1(s); |
79072805 | 4789 | if (*s == '{') |
a0d0e21e | 4790 | PRETERMBLOCK(DO); |
79072805 | 4791 | if (*s != '\'') |
89c5585f | 4792 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
f7e580e2 NC |
4793 | if (orig_keyword == KEY_do) { |
4794 | orig_keyword = 0; | |
4795 | yylval.ival = 1; | |
4796 | } | |
4797 | else | |
4798 | yylval.ival = 0; | |
378cc40b | 4799 | OPERATOR(DO); |
79072805 LW |
4800 | |
4801 | case KEY_die: | |
3280af22 | 4802 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 4803 | LOP(OP_DIE,XTERM); |
79072805 LW |
4804 | |
4805 | case KEY_defined: | |
4806 | UNI(OP_DEFINED); | |
4807 | ||
4808 | case KEY_delete: | |
a0d0e21e | 4809 | UNI(OP_DELETE); |
79072805 LW |
4810 | |
4811 | case KEY_dbmopen: | |
b977d03a | 4812 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 4813 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
4814 | |
4815 | case KEY_dbmclose: | |
4816 | UNI(OP_DBMCLOSE); | |
4817 | ||
4818 | case KEY_dump: | |
a0d0e21e | 4819 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4820 | LOOPX(OP_DUMP); |
4821 | ||
4822 | case KEY_else: | |
4823 | PREBLOCK(ELSE); | |
4824 | ||
4825 | case KEY_elsif: | |
57843af0 | 4826 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4827 | OPERATOR(ELSIF); |
4828 | ||
4829 | case KEY_eq: | |
4830 | Eop(OP_SEQ); | |
4831 | ||
a0d0e21e LW |
4832 | case KEY_exists: |
4833 | UNI(OP_EXISTS); | |
4e553d73 | 4834 | |
79072805 LW |
4835 | case KEY_exit: |
4836 | UNI(OP_EXIT); | |
4837 | ||
4838 | case KEY_eval: | |
fe656965 | 4839 | s = SKIPSPACE1(s); |
3280af22 | 4840 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 4841 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
4842 | |
4843 | case KEY_eof: | |
4844 | UNI(OP_EOF); | |
4845 | ||
4846 | case KEY_exp: | |
4847 | UNI(OP_EXP); | |
4848 | ||
4849 | case KEY_each: | |
4850 | UNI(OP_EACH); | |
4851 | ||
4852 | case KEY_exec: | |
4853 | set_csh(); | |
a0d0e21e | 4854 | LOP(OP_EXEC,XREF); |
79072805 LW |
4855 | |
4856 | case KEY_endhostent: | |
4857 | FUN0(OP_EHOSTENT); | |
4858 | ||
4859 | case KEY_endnetent: | |
4860 | FUN0(OP_ENETENT); | |
4861 | ||
4862 | case KEY_endservent: | |
4863 | FUN0(OP_ESERVENT); | |
4864 | ||
4865 | case KEY_endprotoent: | |
4866 | FUN0(OP_EPROTOENT); | |
4867 | ||
4868 | case KEY_endpwent: | |
4869 | FUN0(OP_EPWENT); | |
4870 | ||
4871 | case KEY_endgrent: | |
4872 | FUN0(OP_EGRENT); | |
4873 | ||
4874 | case KEY_for: | |
4875 | case KEY_foreach: | |
57843af0 | 4876 | yylval.ival = CopLINE(PL_curcop); |
fe656965 | 4877 | s = SKIPSPACE1(s); |
7e2040f0 | 4878 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 4879 | char *p = s; |
3280af22 | 4880 | if ((PL_bufend - p) >= 3 && |
55497cff | 4881 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
4882 | p += 2; | |
77ca0c92 LW |
4883 | else if ((PL_bufend - p) >= 4 && |
4884 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
4885 | p += 3; | |
fe656965 | 4886 | p = PEEKSPACE(p); |
7e2040f0 | 4887 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
4888 | p = scan_ident(p, PL_bufend, |
4889 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
fe656965 | 4890 | p = PEEKSPACE(p); |
77ca0c92 LW |
4891 | } |
4892 | if (*p != '$') | |
cea2e8a9 | 4893 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
55497cff | 4894 | } |
79072805 LW |
4895 | OPERATOR(FOR); |
4896 | ||
4897 | case KEY_formline: | |
a0d0e21e | 4898 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
4899 | |
4900 | case KEY_fork: | |
4901 | FUN0(OP_FORK); | |
4902 | ||
4903 | case KEY_fcntl: | |
a0d0e21e | 4904 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
4905 | |
4906 | case KEY_fileno: | |
4907 | UNI(OP_FILENO); | |
4908 | ||
4909 | case KEY_flock: | |
a0d0e21e | 4910 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
4911 | |
4912 | case KEY_gt: | |
4913 | Rop(OP_SGT); | |
4914 | ||
4915 | case KEY_ge: | |
4916 | Rop(OP_SGE); | |
4917 | ||
4918 | case KEY_grep: | |
2c38e13d | 4919 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
4920 | |
4921 | case KEY_goto: | |
a0d0e21e | 4922 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4923 | LOOPX(OP_GOTO); |
4924 | ||
4925 | case KEY_gmtime: | |
4926 | UNI(OP_GMTIME); | |
4927 | ||
4928 | case KEY_getc: | |
4929 | UNI(OP_GETC); | |
4930 | ||
4931 | case KEY_getppid: | |
4932 | FUN0(OP_GETPPID); | |
4933 | ||
4934 | case KEY_getpgrp: | |
4935 | UNI(OP_GETPGRP); | |
4936 | ||
4937 | case KEY_getpriority: | |
a0d0e21e | 4938 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
4939 | |
4940 | case KEY_getprotobyname: | |
4941 | UNI(OP_GPBYNAME); | |
4942 | ||
4943 | case KEY_getprotobynumber: | |
a0d0e21e | 4944 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
4945 | |
4946 | case KEY_getprotoent: | |
4947 | FUN0(OP_GPROTOENT); | |
4948 | ||
4949 | case KEY_getpwent: | |
4950 | FUN0(OP_GPWENT); | |
4951 | ||
4952 | case KEY_getpwnam: | |
ff68c719 | 4953 | UNI(OP_GPWNAM); |
79072805 LW |
4954 | |
4955 | case KEY_getpwuid: | |
ff68c719 | 4956 | UNI(OP_GPWUID); |
79072805 LW |
4957 | |
4958 | case KEY_getpeername: | |
4959 | UNI(OP_GETPEERNAME); | |
4960 | ||
4961 | case KEY_gethostbyname: | |
4962 | UNI(OP_GHBYNAME); | |
4963 | ||
4964 | case KEY_gethostbyaddr: | |
a0d0e21e | 4965 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
4966 | |
4967 | case KEY_gethostent: | |
4968 | FUN0(OP_GHOSTENT); | |
4969 | ||
4970 | case KEY_getnetbyname: | |
4971 | UNI(OP_GNBYNAME); | |
4972 | ||
4973 | case KEY_getnetbyaddr: | |
a0d0e21e | 4974 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
4975 | |
4976 | case KEY_getnetent: | |
4977 | FUN0(OP_GNETENT); | |
4978 | ||
4979 | case KEY_getservbyname: | |
a0d0e21e | 4980 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
4981 | |
4982 | case KEY_getservbyport: | |
a0d0e21e | 4983 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
4984 | |
4985 | case KEY_getservent: | |
4986 | FUN0(OP_GSERVENT); | |
4987 | ||
4988 | case KEY_getsockname: | |
4989 | UNI(OP_GETSOCKNAME); | |
4990 | ||
4991 | case KEY_getsockopt: | |
a0d0e21e | 4992 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
4993 | |
4994 | case KEY_getgrent: | |
4995 | FUN0(OP_GGRENT); | |
4996 | ||
4997 | case KEY_getgrnam: | |
ff68c719 | 4998 | UNI(OP_GGRNAM); |
79072805 LW |
4999 | |
5000 | case KEY_getgrgid: | |
ff68c719 | 5001 | UNI(OP_GGRGID); |
79072805 LW |
5002 | |
5003 | case KEY_getlogin: | |
5004 | FUN0(OP_GETLOGIN); | |
5005 | ||
93a17b20 | 5006 | case KEY_glob: |
a0d0e21e LW |
5007 | set_csh(); |
5008 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 5009 | |
79072805 LW |
5010 | case KEY_hex: |
5011 | UNI(OP_HEX); | |
5012 | ||
5013 | case KEY_if: | |
57843af0 | 5014 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5015 | OPERATOR(IF); |
5016 | ||
5017 | case KEY_index: | |
a0d0e21e | 5018 | LOP(OP_INDEX,XTERM); |
79072805 LW |
5019 | |
5020 | case KEY_int: | |
5021 | UNI(OP_INT); | |
5022 | ||
5023 | case KEY_ioctl: | |
a0d0e21e | 5024 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
5025 | |
5026 | case KEY_join: | |
a0d0e21e | 5027 | LOP(OP_JOIN,XTERM); |
79072805 LW |
5028 | |
5029 | case KEY_keys: | |
5030 | UNI(OP_KEYS); | |
5031 | ||
5032 | case KEY_kill: | |
a0d0e21e | 5033 | LOP(OP_KILL,XTERM); |
79072805 LW |
5034 | |
5035 | case KEY_last: | |
a0d0e21e | 5036 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 5037 | LOOPX(OP_LAST); |
4e553d73 | 5038 | |
79072805 LW |
5039 | case KEY_lc: |
5040 | UNI(OP_LC); | |
5041 | ||
5042 | case KEY_lcfirst: | |
5043 | UNI(OP_LCFIRST); | |
5044 | ||
5045 | case KEY_local: | |
09bef843 | 5046 | yylval.ival = 0; |
79072805 LW |
5047 | OPERATOR(LOCAL); |
5048 | ||
5049 | case KEY_length: | |
5050 | UNI(OP_LENGTH); | |
5051 | ||
5052 | case KEY_lt: | |
5053 | Rop(OP_SLT); | |
5054 | ||
5055 | case KEY_le: | |
5056 | Rop(OP_SLE); | |
5057 | ||
5058 | case KEY_localtime: | |
5059 | UNI(OP_LOCALTIME); | |
5060 | ||
5061 | case KEY_log: | |
5062 | UNI(OP_LOG); | |
5063 | ||
5064 | case KEY_link: | |
a0d0e21e | 5065 | LOP(OP_LINK,XTERM); |
79072805 LW |
5066 | |
5067 | case KEY_listen: | |
a0d0e21e | 5068 | LOP(OP_LISTEN,XTERM); |
79072805 | 5069 | |
c0329465 MB |
5070 | case KEY_lock: |
5071 | UNI(OP_LOCK); | |
5072 | ||
79072805 LW |
5073 | case KEY_lstat: |
5074 | UNI(OP_LSTAT); | |
5075 | ||
5076 | case KEY_m: | |
8782bef2 | 5077 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
5078 | TERM(sublex_start()); |
5079 | ||
a0d0e21e | 5080 | case KEY_map: |
2c38e13d | 5081 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 5082 | |
79072805 | 5083 | case KEY_mkdir: |
a0d0e21e | 5084 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
5085 | |
5086 | case KEY_msgctl: | |
a0d0e21e | 5087 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
5088 | |
5089 | case KEY_msgget: | |
a0d0e21e | 5090 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
5091 | |
5092 | case KEY_msgrcv: | |
a0d0e21e | 5093 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
5094 | |
5095 | case KEY_msgsnd: | |
a0d0e21e | 5096 | LOP(OP_MSGSND,XTERM); |
79072805 | 5097 | |
77ca0c92 | 5098 | case KEY_our: |
93a17b20 | 5099 | case KEY_my: |
77ca0c92 | 5100 | PL_in_my = tmp; |
fe656965 | 5101 | s = SKIPSPACE1(s); |
7e2040f0 | 5102 | if (isIDFIRST_lazy_if(s,UTF)) { |
3280af22 | 5103 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
5104 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
5105 | goto really_sub; | |
def3634b | 5106 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 5107 | if (!PL_in_my_stash) { |
c750a3ec | 5108 | char tmpbuf[1024]; |
3280af22 | 5109 | PL_bufptr = s; |
b25a8111 | 5110 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
5111 | yyerror(tmpbuf); |
5112 | } | |
5113 | } | |
09bef843 | 5114 | yylval.ival = 1; |
55497cff | 5115 | OPERATOR(MY); |
93a17b20 | 5116 | |
79072805 | 5117 | case KEY_next: |
a0d0e21e | 5118 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5119 | LOOPX(OP_NEXT); |
5120 | ||
5121 | case KEY_ne: | |
5122 | Eop(OP_SNE); | |
5123 | ||
a0d0e21e | 5124 | case KEY_no: |
d9e8c084 | 5125 | s = tokenize_use(0, s); |
a0d0e21e LW |
5126 | OPERATOR(USE); |
5127 | ||
5128 | case KEY_not: | |
fe656965 | 5129 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
5130 | FUN1(OP_NOT); |
5131 | else | |
5132 | OPERATOR(NOTOP); | |
a0d0e21e | 5133 | |
79072805 | 5134 | case KEY_open: |
fe656965 | 5135 | s = SKIPSPACE1(s); |
7e2040f0 | 5136 | if (isIDFIRST_lazy_if(s,UTF)) { |
24c2fff4 | 5137 | const char *t; |
8e7b0921 AL |
5138 | for (d = s; isALNUM_lazy_if(d,UTF);) |
5139 | d++; | |
5140 | for (t=d; isSPACE(*t);) | |
5141 | t++; | |
b035a42e | 5142 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
5b7ea690 JH |
5143 | /* [perl #16184] */ |
5144 | && !(t[0] == '=' && t[1] == '>') | |
5145 | ) { | |
5900599a | 5146 | int parms_len = (int)(d-s); |
9014280d | 5147 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 5148 | "Precedence problem: open %.*s should be open(%.*s)", |
5900599a | 5149 | parms_len, s, parms_len, s); |
5b7ea690 | 5150 | } |
93a17b20 | 5151 | } |
a0d0e21e | 5152 | LOP(OP_OPEN,XTERM); |
79072805 | 5153 | |
463ee0b2 | 5154 | case KEY_or: |
a0d0e21e | 5155 | yylval.ival = OP_OR; |
463ee0b2 LW |
5156 | OPERATOR(OROP); |
5157 | ||
79072805 LW |
5158 | case KEY_ord: |
5159 | UNI(OP_ORD); | |
5160 | ||
5161 | case KEY_oct: | |
5162 | UNI(OP_OCT); | |
5163 | ||
5164 | case KEY_opendir: | |
a0d0e21e | 5165 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
5166 | |
5167 | case KEY_print: | |
3280af22 | 5168 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 5169 | LOP(OP_PRINT,XREF); |
79072805 LW |
5170 | |
5171 | case KEY_printf: | |
3280af22 | 5172 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 5173 | LOP(OP_PRTF,XREF); |
79072805 | 5174 | |
c07a80fd | 5175 | case KEY_prototype: |
5176 | UNI(OP_PROTOTYPE); | |
5177 | ||
79072805 | 5178 | case KEY_push: |
a0d0e21e | 5179 | LOP(OP_PUSH,XTERM); |
79072805 LW |
5180 | |
5181 | case KEY_pop: | |
5182 | UNI(OP_POP); | |
5183 | ||
a0d0e21e LW |
5184 | case KEY_pos: |
5185 | UNI(OP_POS); | |
4e553d73 | 5186 | |
79072805 | 5187 | case KEY_pack: |
a0d0e21e | 5188 | LOP(OP_PACK,XTERM); |
79072805 LW |
5189 | |
5190 | case KEY_package: | |
a0d0e21e | 5191 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
5192 | OPERATOR(PACKAGE); |
5193 | ||
5194 | case KEY_pipe: | |
a0d0e21e | 5195 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
5196 | |
5197 | case KEY_q: | |
09bef843 | 5198 | s = scan_str(s,FALSE,FALSE); |
79072805 | 5199 | if (!s) |
43b2f713 | 5200 | missingterm(NULL); |
79072805 LW |
5201 | yylval.ival = OP_CONST; |
5202 | TERM(sublex_start()); | |
5203 | ||
a0d0e21e LW |
5204 | case KEY_quotemeta: |
5205 | UNI(OP_QUOTEMETA); | |
5206 | ||
8990e307 | 5207 | case KEY_qw: |
09bef843 | 5208 | s = scan_str(s,FALSE,FALSE); |
8990e307 | 5209 | if (!s) |
43b2f713 | 5210 | missingterm(NULL); |
e438e509 | 5211 | PL_expect = XOPERATOR; |
8127e0e3 GS |
5212 | force_next(')'); |
5213 | if (SvCUR(PL_lex_stuff)) { | |
5900599a | 5214 | OP *words = NULL; |
8127e0e3 | 5215 | int warned = 0; |
3280af22 | 5216 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 5217 | while (len) { |
43b2f713 AL |
5218 | for (; isSPACE(*d) && len; --len, ++d) |
5219 | /**/; | |
8127e0e3 | 5220 | if (len) { |
43b2f713 | 5221 | SV *sv; |
24c2fff4 | 5222 | const char *b = d; |
e476b1b5 | 5223 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
5224 | for (; !isSPACE(*d) && len; --len, ++d) { |
5225 | if (*d == ',') { | |
9014280d | 5226 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
5227 | "Possible attempt to separate words with commas"); |
5228 | ++warned; | |
5229 | } | |
5230 | else if (*d == '#') { | |
9014280d | 5231 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
5232 | "Possible attempt to put comments in qw() list"); |
5233 | ++warned; | |
5234 | } | |
5235 | } | |
5236 | } | |
5237 | else { | |
43b2f713 AL |
5238 | for (; !isSPACE(*d) && len; --len, ++d) |
5239 | /**/; | |
8127e0e3 | 5240 | } |
7948272d NIS |
5241 | sv = newSVpvn(b, d-b); |
5242 | if (DO_UTF8(PL_lex_stuff)) | |
5243 | SvUTF8_on(sv); | |
8127e0e3 | 5244 | words = append_elem(OP_LIST, words, |
7948272d | 5245 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 5246 | } |
5247 | } | |
8127e0e3 | 5248 | if (words) { |
fe656965 | 5249 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
5250 | force_next(THING); |
5251 | } | |
55497cff | 5252 | } |
37fd879b | 5253 | if (PL_lex_stuff) { |
8127e0e3 | 5254 | SvREFCNT_dec(PL_lex_stuff); |
0e2d6244 | 5255 | PL_lex_stuff = NULL; |
37fd879b | 5256 | } |
3280af22 | 5257 | PL_expect = XTERM; |
8127e0e3 | 5258 | TOKEN('('); |
8990e307 | 5259 | |
79072805 | 5260 | case KEY_qq: |
09bef843 | 5261 | s = scan_str(s,FALSE,FALSE); |
79072805 | 5262 | if (!s) |
43b2f713 | 5263 | missingterm(NULL); |
a0d0e21e | 5264 | yylval.ival = OP_STRINGIFY; |
3280af22 | 5265 | if (SvIVX(PL_lex_stuff) == '\'') |
0da6cfda | 5266 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
5267 | TERM(sublex_start()); |
5268 | ||
8782bef2 GB |
5269 | case KEY_qr: |
5270 | s = scan_pat(s,OP_QR); | |
5271 | TERM(sublex_start()); | |
5272 | ||
79072805 | 5273 | case KEY_qx: |
09bef843 | 5274 | s = scan_str(s,FALSE,FALSE); |
79072805 | 5275 | if (!s) |
43b2f713 | 5276 | missingterm(NULL); |
79072805 LW |
5277 | yylval.ival = OP_BACKTICK; |
5278 | set_csh(); | |
5279 | TERM(sublex_start()); | |
5280 | ||
5281 | case KEY_return: | |
5282 | OLDLOP(OP_RETURN); | |
5283 | ||
5284 | case KEY_require: | |
fe656965 | 5285 | s = SKIPSPACE1(s); |
e759cc13 RGS |
5286 | if (isDIGIT(*s)) { |
5287 | s = force_version(s, FALSE); | |
a7cb1f99 | 5288 | } |
e759cc13 RGS |
5289 | else if (*s != 'v' || !isDIGIT(s[1]) |
5290 | || (s = force_version(s, TRUE), *s == 'v')) | |
5291 | { | |
a7cb1f99 GS |
5292 | *PL_tokenbuf = '\0'; |
5293 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 5294 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
5295 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
5296 | else if (*s == '<') | |
5297 | yyerror("<> should be quotes"); | |
5298 | } | |
f7e580e2 NC |
5299 | if (orig_keyword == KEY_require) { |
5300 | orig_keyword = 0; | |
5301 | yylval.ival = 1; | |
5302 | } | |
5303 | else | |
5304 | yylval.ival = 0; | |
5305 | PL_expect = XTERM; | |
5306 | PL_bufptr = s; | |
5307 | PL_last_uni = PL_oldbufptr; | |
5308 | PL_last_lop_op = OP_REQUIRE; | |
5309 | s = skipspace(s); | |
5310 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
5311 | |
5312 | case KEY_reset: | |
5313 | UNI(OP_RESET); | |
5314 | ||
5315 | case KEY_redo: | |
a0d0e21e | 5316 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5317 | LOOPX(OP_REDO); |
5318 | ||
5319 | case KEY_rename: | |
a0d0e21e | 5320 | LOP(OP_RENAME,XTERM); |
79072805 LW |
5321 | |
5322 | case KEY_rand: | |
5323 | UNI(OP_RAND); | |
5324 | ||
5325 | case KEY_rmdir: | |
5326 | UNI(OP_RMDIR); | |
5327 | ||
5328 | case KEY_rindex: | |
a0d0e21e | 5329 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
5330 | |
5331 | case KEY_read: | |
a0d0e21e | 5332 | LOP(OP_READ,XTERM); |
79072805 LW |
5333 | |
5334 | case KEY_readdir: | |
5335 | UNI(OP_READDIR); | |
5336 | ||
93a17b20 LW |
5337 | case KEY_readline: |
5338 | set_csh(); | |
5339 | UNI(OP_READLINE); | |
5340 | ||
5341 | case KEY_readpipe: | |
5342 | set_csh(); | |
5343 | UNI(OP_BACKTICK); | |
5344 | ||
79072805 LW |
5345 | case KEY_rewinddir: |
5346 | UNI(OP_REWINDDIR); | |
5347 | ||
5348 | case KEY_recv: | |
a0d0e21e | 5349 | LOP(OP_RECV,XTERM); |
79072805 LW |
5350 | |
5351 | case KEY_reverse: | |
a0d0e21e | 5352 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
5353 | |
5354 | case KEY_readlink: | |
5355 | UNI(OP_READLINK); | |
5356 | ||
5357 | case KEY_ref: | |
5358 | UNI(OP_REF); | |
5359 | ||
5360 | case KEY_s: | |
5361 | s = scan_subst(s); | |
5362 | if (yylval.opval) | |
5363 | TERM(sublex_start()); | |
5364 | else | |
5365 | TOKEN(1); /* force error */ | |
5366 | ||
a0d0e21e LW |
5367 | case KEY_chomp: |
5368 | UNI(OP_CHOMP); | |
4e553d73 | 5369 | |
79072805 LW |
5370 | case KEY_scalar: |
5371 | UNI(OP_SCALAR); | |
5372 | ||
5373 | case KEY_select: | |
a0d0e21e | 5374 | LOP(OP_SELECT,XTERM); |
79072805 LW |
5375 | |
5376 | case KEY_seek: | |
a0d0e21e | 5377 | LOP(OP_SEEK,XTERM); |
79072805 LW |
5378 | |
5379 | case KEY_semctl: | |
a0d0e21e | 5380 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
5381 | |
5382 | case KEY_semget: | |
a0d0e21e | 5383 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
5384 | |
5385 | case KEY_semop: | |
a0d0e21e | 5386 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
5387 | |
5388 | case KEY_send: | |
a0d0e21e | 5389 | LOP(OP_SEND,XTERM); |
79072805 LW |
5390 | |
5391 | case KEY_setpgrp: | |
a0d0e21e | 5392 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
5393 | |
5394 | case KEY_setpriority: | |
a0d0e21e | 5395 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
5396 | |
5397 | case KEY_sethostent: | |
ff68c719 | 5398 | UNI(OP_SHOSTENT); |
79072805 LW |
5399 | |
5400 | case KEY_setnetent: | |
ff68c719 | 5401 | UNI(OP_SNETENT); |
79072805 LW |
5402 | |
5403 | case KEY_setservent: | |
ff68c719 | 5404 | UNI(OP_SSERVENT); |
79072805 LW |
5405 | |
5406 | case KEY_setprotoent: | |
ff68c719 | 5407 | UNI(OP_SPROTOENT); |
79072805 LW |
5408 | |
5409 | case KEY_setpwent: | |
5410 | FUN0(OP_SPWENT); | |
5411 | ||
5412 | case KEY_setgrent: | |
5413 | FUN0(OP_SGRENT); | |
5414 | ||
5415 | case KEY_seekdir: | |
a0d0e21e | 5416 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
5417 | |
5418 | case KEY_setsockopt: | |
a0d0e21e | 5419 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
5420 | |
5421 | case KEY_shift: | |
5422 | UNI(OP_SHIFT); | |
5423 | ||
5424 | case KEY_shmctl: | |
a0d0e21e | 5425 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
5426 | |
5427 | case KEY_shmget: | |
a0d0e21e | 5428 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
5429 | |
5430 | case KEY_shmread: | |
a0d0e21e | 5431 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
5432 | |
5433 | case KEY_shmwrite: | |
a0d0e21e | 5434 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
5435 | |
5436 | case KEY_shutdown: | |
a0d0e21e | 5437 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
5438 | |
5439 | case KEY_sin: | |
5440 | UNI(OP_SIN); | |
5441 | ||
5442 | case KEY_sleep: | |
5443 | UNI(OP_SLEEP); | |
5444 | ||
5445 | case KEY_socket: | |
a0d0e21e | 5446 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
5447 | |
5448 | case KEY_socketpair: | |
a0d0e21e | 5449 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
5450 | |
5451 | case KEY_sort: | |
3280af22 | 5452 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
fe656965 | 5453 | s = SKIPSPACE1(s); |
79072805 | 5454 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 5455 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 5456 | PL_expect = XTERM; |
15f0808c | 5457 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 5458 | LOP(OP_SORT,XREF); |
79072805 LW |
5459 | |
5460 | case KEY_split: | |
a0d0e21e | 5461 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
5462 | |
5463 | case KEY_sprintf: | |
a0d0e21e | 5464 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
5465 | |
5466 | case KEY_splice: | |
a0d0e21e | 5467 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
5468 | |
5469 | case KEY_sqrt: | |
5470 | UNI(OP_SQRT); | |
5471 | ||
5472 | case KEY_srand: | |
5473 | UNI(OP_SRAND); | |
5474 | ||
5475 | case KEY_stat: | |
5476 | UNI(OP_STAT); | |
5477 | ||
5478 | case KEY_study: | |
79072805 LW |
5479 | UNI(OP_STUDY); |
5480 | ||
5481 | case KEY_substr: | |
a0d0e21e | 5482 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
5483 | |
5484 | case KEY_format: | |
5485 | case KEY_sub: | |
93a17b20 | 5486 | really_sub: |
09bef843 | 5487 | { |
3280af22 | 5488 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 5489 | SSize_t tboffset = 0; |
09bef843 | 5490 | expectation attrful; |
17184076 | 5491 | bool have_name, have_proto; |
24c2fff4 | 5492 | const int key = tmp; |
09bef843 SB |
5493 | |
5494 | s = skipspace(s); | |
5495 | ||
7e2040f0 | 5496 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
5497 | (*s == ':' && s[1] == ':')) |
5498 | { | |
5499 | PL_expect = XBLOCK; | |
5500 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
5501 | /* remember buffer pos'n for later force_word */ |
5502 | tboffset = s - PL_oldbufptr; | |
09bef843 SB |
5503 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5504 | if (strchr(tmpbuf, ':')) | |
5505 | sv_setpv(PL_subname, tmpbuf); | |
5506 | else { | |
5507 | sv_setsv(PL_subname,PL_curstname); | |
d7559646 | 5508 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
5509 | sv_catpvn(PL_subname,tmpbuf,len); |
5510 | } | |
5511 | s = skipspace(d); | |
5512 | have_name = TRUE; | |
5513 | } | |
463ee0b2 | 5514 | else { |
09bef843 SB |
5515 | if (key == KEY_my) |
5516 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
5517 | PL_expect = XTERMBLOCK; | |
5518 | attrful = XATTRTERM; | |
2a8de9e2 | 5519 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 5520 | have_name = FALSE; |
463ee0b2 | 5521 | } |
4633a7c4 | 5522 | |
09bef843 SB |
5523 | if (key == KEY_format) { |
5524 | if (*s == '=') | |
5525 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5526 | if (have_name) | |
b1b65b59 JH |
5527 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5528 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5529 | OPERATOR(FORMAT); |
5530 | } | |
79072805 | 5531 | |
09bef843 SB |
5532 | /* Look for a prototype */ |
5533 | if (*s == '(') { | |
5534 | char *p; | |
17184076 NC |
5535 | bool bad_proto = FALSE; |
5536 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 SB |
5537 | |
5538 | s = scan_str(s,FALSE,FALSE); | |
37fd879b | 5539 | if (!s) |
09bef843 | 5540 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 5541 | /* strip spaces and check for bad characters */ |
09bef843 SB |
5542 | d = SvPVX(PL_lex_stuff); |
5543 | tmp = 0; | |
5544 | for (p = d; *p; ++p) { | |
d37a9538 | 5545 | if (!isSPACE(*p)) { |
09bef843 | 5546 | d[tmp++] = *p; |
17184076 | 5547 | if (warnsyntax && !strchr("$@%*;[]&\\", *p)) |
d37a9538 ST |
5548 | bad_proto = TRUE; |
5549 | } | |
09bef843 SB |
5550 | } |
5551 | d[tmp] = '\0'; | |
17184076 | 5552 | if (bad_proto) |
9014280d | 5553 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
c293eb2b | 5554 | "Illegal character in prototype for %"SVf" : %s", |
f2139bd3 | 5555 | (void*)PL_subname, d); |
a8dc4fe8 | 5556 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 5557 | have_proto = TRUE; |
68dc0745 | 5558 | |
09bef843 | 5559 | s = skipspace(s); |
4633a7c4 | 5560 | } |
09bef843 SB |
5561 | else |
5562 | have_proto = FALSE; | |
5563 | ||
5564 | if (*s == ':' && s[1] != ':') | |
5565 | PL_expect = attrful; | |
60e3e0e4 NC |
5566 | else if (*s != '{' && key == KEY_sub) { |
5567 | if (!have_name) | |
5568 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
5569 | else if (*s != ';') | |
f2139bd3 | 5570 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, (void*)PL_subname); |
60e3e0e4 | 5571 | } |
09bef843 SB |
5572 | |
5573 | if (have_proto) { | |
fe656965 | 5574 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 5575 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
0e2d6244 | 5576 | PL_lex_stuff = NULL; |
09bef843 | 5577 | force_next(THING); |
68dc0745 | 5578 | } |
09bef843 | 5579 | if (!have_name) { |
c99da370 | 5580 | sv_setpv(PL_subname, |
d2ae4405 JH |
5581 | (const char *) |
5582 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 5583 | TOKEN(ANONSUB); |
4633a7c4 | 5584 | } |
b1b65b59 JH |
5585 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5586 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5587 | if (key == KEY_my) |
5588 | TOKEN(MYSUB); | |
5589 | TOKEN(SUB); | |
4633a7c4 | 5590 | } |
79072805 LW |
5591 | |
5592 | case KEY_system: | |
5593 | set_csh(); | |
a0d0e21e | 5594 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
5595 | |
5596 | case KEY_symlink: | |
a0d0e21e | 5597 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
5598 | |
5599 | case KEY_syscall: | |
a0d0e21e | 5600 | LOP(OP_SYSCALL,XTERM); |
79072805 | 5601 | |
c07a80fd | 5602 | case KEY_sysopen: |
5603 | LOP(OP_SYSOPEN,XTERM); | |
5604 | ||
137443ea | 5605 | case KEY_sysseek: |
5606 | LOP(OP_SYSSEEK,XTERM); | |
5607 | ||
79072805 | 5608 | case KEY_sysread: |
a0d0e21e | 5609 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
5610 | |
5611 | case KEY_syswrite: | |
a0d0e21e | 5612 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
5613 | |
5614 | case KEY_tr: | |
5615 | s = scan_trans(s); | |
5616 | TERM(sublex_start()); | |
5617 | ||
5618 | case KEY_tell: | |
5619 | UNI(OP_TELL); | |
5620 | ||
5621 | case KEY_telldir: | |
5622 | UNI(OP_TELLDIR); | |
5623 | ||
463ee0b2 | 5624 | case KEY_tie: |
a0d0e21e | 5625 | LOP(OP_TIE,XTERM); |
463ee0b2 | 5626 | |
c07a80fd | 5627 | case KEY_tied: |
5628 | UNI(OP_TIED); | |
5629 | ||
79072805 LW |
5630 | case KEY_time: |
5631 | FUN0(OP_TIME); | |
5632 | ||
5633 | case KEY_times: | |
5634 | FUN0(OP_TMS); | |
5635 | ||
5636 | case KEY_truncate: | |
a0d0e21e | 5637 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
5638 | |
5639 | case KEY_uc: | |
5640 | UNI(OP_UC); | |
5641 | ||
5642 | case KEY_ucfirst: | |
5643 | UNI(OP_UCFIRST); | |
5644 | ||
463ee0b2 LW |
5645 | case KEY_untie: |
5646 | UNI(OP_UNTIE); | |
5647 | ||
79072805 | 5648 | case KEY_until: |
57843af0 | 5649 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5650 | OPERATOR(UNTIL); |
5651 | ||
5652 | case KEY_unless: | |
57843af0 | 5653 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5654 | OPERATOR(UNLESS); |
5655 | ||
5656 | case KEY_unlink: | |
a0d0e21e | 5657 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
5658 | |
5659 | case KEY_undef: | |
5660 | UNI(OP_UNDEF); | |
5661 | ||
5662 | case KEY_unpack: | |
a0d0e21e | 5663 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
5664 | |
5665 | case KEY_utime: | |
a0d0e21e | 5666 | LOP(OP_UTIME,XTERM); |
79072805 LW |
5667 | |
5668 | case KEY_umask: | |
5669 | UNI(OP_UMASK); | |
5670 | ||
5671 | case KEY_unshift: | |
a0d0e21e LW |
5672 | LOP(OP_UNSHIFT,XTERM); |
5673 | ||
5674 | case KEY_use: | |
d9e8c084 | 5675 | s = tokenize_use(1, s); |
a0d0e21e | 5676 | OPERATOR(USE); |
79072805 LW |
5677 | |
5678 | case KEY_values: | |
5679 | UNI(OP_VALUES); | |
5680 | ||
5681 | case KEY_vec: | |
a0d0e21e | 5682 | LOP(OP_VEC,XTERM); |
79072805 LW |
5683 | |
5684 | case KEY_while: | |
57843af0 | 5685 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5686 | OPERATOR(WHILE); |
5687 | ||
5688 | case KEY_warn: | |
3280af22 | 5689 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5690 | LOP(OP_WARN,XTERM); |
79072805 LW |
5691 | |
5692 | case KEY_wait: | |
5693 | FUN0(OP_WAIT); | |
5694 | ||
5695 | case KEY_waitpid: | |
a0d0e21e | 5696 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
5697 | |
5698 | case KEY_wantarray: | |
5699 | FUN0(OP_WANTARRAY); | |
5700 | ||
5701 | case KEY_write: | |
9d116dd7 JH |
5702 | #ifdef EBCDIC |
5703 | { | |
df3728a2 JH |
5704 | char ctl_l[2]; |
5705 | ctl_l[0] = toCTRL('L'); | |
5706 | ctl_l[1] = '\0'; | |
b977d03a | 5707 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
5708 | } |
5709 | #else | |
b977d03a NC |
5710 | /* Make sure $^L is defined */ |
5711 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 5712 | #endif |
79072805 LW |
5713 | UNI(OP_ENTERWRITE); |
5714 | ||
5715 | case KEY_x: | |
3280af22 | 5716 | if (PL_expect == XOPERATOR) |
79072805 LW |
5717 | Mop(OP_REPEAT); |
5718 | check_uni(); | |
5719 | goto just_a_word; | |
5720 | ||
a0d0e21e LW |
5721 | case KEY_xor: |
5722 | yylval.ival = OP_XOR; | |
5723 | OPERATOR(OROP); | |
5724 | ||
79072805 LW |
5725 | case KEY_y: |
5726 | s = scan_trans(s); | |
5727 | TERM(sublex_start()); | |
5728 | } | |
49dc05e3 | 5729 | }} |
79072805 | 5730 | } |
bf4acbe4 GS |
5731 | #ifdef __SC__ |
5732 | #pragma segment Main | |
5733 | #endif | |
79072805 | 5734 | |
e930465f JH |
5735 | static int |
5736 | S_pending_ident(pTHX) | |
8eceec63 SC |
5737 | { |
5738 | register char *d; | |
620e3b3d | 5739 | PADOFFSET tmp = 0; |
8eceec63 SC |
5740 | /* pit holds the identifier we read and pending_ident is reset */ |
5741 | char pit = PL_pending_ident; | |
5742 | PL_pending_ident = 0; | |
5743 | ||
5744 | DEBUG_T({ PerlIO_printf(Perl_debug_log, | |
3f3939a9 | 5745 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
5746 | |
5747 | /* if we're in a my(), we can't allow dynamics here. | |
5748 | $foo'bar has already been turned into $foo::bar, so | |
5749 | just check for colons. | |
5750 | ||
5751 | if it's a legal name, the OP is a PADANY. | |
5752 | */ | |
5753 | if (PL_in_my) { | |
5754 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
5755 | if (strchr(PL_tokenbuf,':')) | |
5756 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
5757 | "variable %s in \"our\"", | |
5758 | PL_tokenbuf)); | |
9755d405 | 5759 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
5760 | } |
5761 | else { | |
5762 | if (strchr(PL_tokenbuf,':')) | |
5763 | yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf)); | |
5764 | ||
5765 | yylval.opval = newOP(OP_PADANY, 0); | |
9755d405 | 5766 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
5767 | return PRIVATEREF; |
5768 | } | |
5769 | } | |
5770 | ||
5771 | /* | |
5772 | build the ops for accesses to a my() variable. | |
5773 | ||
5774 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
5775 | then used in a comparison. This catches most, but not | |
5776 | all cases. For instance, it catches | |
5777 | sort { my($a); $a <=> $b } | |
5778 | but not | |
5779 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
5780 | (although why you'd do that is anyone's guess). | |
5781 | */ | |
5782 | ||
5783 | if (!strchr(PL_tokenbuf,':')) { | |
4d1ff10f | 5784 | #ifdef USE_5005THREADS |
8eceec63 SC |
5785 | /* Check for single character per-thread SVs */ |
5786 | if (PL_tokenbuf[0] == '$' && PL_tokenbuf[2] == '\0' | |
5787 | && !isALPHA(PL_tokenbuf[1]) /* Rule out obvious non-threadsvs */ | |
5788 | && (tmp = find_threadsv(&PL_tokenbuf[1])) != NOT_IN_PAD) | |
5789 | { | |
5790 | yylval.opval = newOP(OP_THREADSV, 0); | |
5791 | yylval.opval->op_targ = tmp; | |
5792 | return PRIVATEREF; | |
5793 | } | |
4d1ff10f | 5794 | #endif /* USE_5005THREADS */ |
d7afa7f5 JH |
5795 | if (!PL_in_my) |
5796 | tmp = pad_findmy(PL_tokenbuf); | |
5797 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 5798 | /* might be an "our" variable" */ |
62d59642 | 5799 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 5800 | /* build ops for a bareword */ |
e4a519ba AL |
5801 | SV * const sym |
5802 | = newSVpv(HvNAME_get(PAD_COMPNAME_OURSTASH(tmp)), 0); | |
d7559646 | 5803 | sv_catpvs(sym, "::"); |
8eceec63 SC |
5804 | sv_catpv(sym, PL_tokenbuf+1); |
5805 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
5806 | yylval.opval->op_private = OPpCONST_ENTERED; | |
057b822e | 5807 | gv_fetchsv(sym, |
8eceec63 SC |
5808 | (PL_in_eval |
5809 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 5810 | : GV_ADDMULTI |
8eceec63 SC |
5811 | ), |
5812 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
5813 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
5814 | : SVt_PVHV)); | |
5815 | return WORD; | |
5816 | } | |
5817 | ||
5818 | /* if it's a sort block and they're naming $a or $b */ | |
5819 | if (PL_last_lop_op == OP_SORT && | |
5820 | PL_tokenbuf[0] == '$' && | |
5821 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
5822 | && !PL_tokenbuf[2]) | |
5823 | { | |
5824 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
5825 | d < PL_bufend && *d != '\n'; | |
5826 | d++) | |
5827 | { | |
5828 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
5829 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
5830 | PL_tokenbuf); | |
5831 | } | |
5832 | } | |
5833 | } | |
5834 | ||
5835 | yylval.opval = newOP(OP_PADANY, 0); | |
5836 | yylval.opval->op_targ = tmp; | |
5837 | return PRIVATEREF; | |
5838 | } | |
5839 | } | |
5840 | ||
5841 | /* | |
5842 | Whine if they've said @foo in a doublequoted string, | |
5843 | and @foo isn't a variable we can find in the symbol | |
5844 | table. | |
5845 | */ | |
5846 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
057b822e | 5847 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
5848 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
5849 | && ckWARN(WARN_AMBIGUOUS)) | |
5850 | { | |
5851 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 5852 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
5853 | "Possible unintended interpolation of %s in string", |
5854 | PL_tokenbuf); | |
5855 | } | |
5856 | } | |
5857 | ||
5858 | /* build ops for a bareword */ | |
5859 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
5860 | yylval.opval->op_private = OPpCONST_ENTERED; | |
5861 | gv_fetchpv(PL_tokenbuf+1, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE, | |
5862 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
5863 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
5864 | : SVt_PVHV)); | |
5865 | return WORD; | |
5866 | } | |
5867 | ||
64446b2f NC |
5868 | /* |
5869 | * The following code was generated by perl_keyword.pl. | |
5870 | */ | |
5871 | ||
79072805 | 5872 | I32 |
64446b2f | 5873 | Perl_keyword (pTHX_ char *name, I32 len) |
79072805 | 5874 | { |
64446b2f NC |
5875 | switch (len) |
5876 | { | |
5877 | case 1: /* 5 tokens of length 1 */ | |
5878 | switch (name[0]) | |
5879 | { | |
5880 | case 'm': | |
5881 | { /* m */ | |
5882 | return KEY_m; | |
5883 | } | |
5884 | ||
64446b2f NC |
5885 | case 'q': |
5886 | { /* q */ | |
5887 | return KEY_q; | |
5888 | } | |
5889 | ||
64446b2f NC |
5890 | case 's': |
5891 | { /* s */ | |
5892 | return KEY_s; | |
5893 | } | |
5894 | ||
64446b2f NC |
5895 | case 'x': |
5896 | { /* x */ | |
5897 | return -KEY_x; | |
5898 | } | |
5899 | ||
64446b2f NC |
5900 | case 'y': |
5901 | { /* y */ | |
5902 | return KEY_y; | |
5903 | } | |
5904 | ||
64446b2f NC |
5905 | default: |
5906 | goto unknown; | |
5907 | } | |
5908 | ||
5909 | case 2: /* 18 tokens of length 2 */ | |
5910 | switch (name[0]) | |
5911 | { | |
5912 | case 'd': | |
5913 | if (name[1] == 'o') | |
5914 | { /* do */ | |
5915 | return KEY_do; | |
5916 | } | |
5917 | ||
5918 | goto unknown; | |
5919 | ||
5920 | case 'e': | |
5921 | if (name[1] == 'q') | |
5922 | { /* eq */ | |
5923 | return -KEY_eq; | |
5924 | } | |
5925 | ||
5926 | goto unknown; | |
5927 | ||
5928 | case 'g': | |
5929 | switch (name[1]) | |
5930 | { | |
5931 | case 'e': | |
5932 | { /* ge */ | |
5933 | return -KEY_ge; | |
5934 | } | |
5935 | ||
64446b2f NC |
5936 | case 't': |
5937 | { /* gt */ | |
5938 | return -KEY_gt; | |
5939 | } | |
5940 | ||
64446b2f NC |
5941 | default: |
5942 | goto unknown; | |
5943 | } | |
5944 | ||
5945 | case 'i': | |
5946 | if (name[1] == 'f') | |
5947 | { /* if */ | |
5948 | return KEY_if; | |
5949 | } | |
5950 | ||
5951 | goto unknown; | |
5952 | ||
5953 | case 'l': | |
5954 | switch (name[1]) | |
5955 | { | |
5956 | case 'c': | |
5957 | { /* lc */ | |
5958 | return -KEY_lc; | |
5959 | } | |
5960 | ||
64446b2f NC |
5961 | case 'e': |
5962 | { /* le */ | |
5963 | return -KEY_le; | |
5964 | } | |
5965 | ||
64446b2f NC |
5966 | case 't': |
5967 | { /* lt */ | |
5968 | return -KEY_lt; | |
5969 | } | |
5970 | ||
64446b2f NC |
5971 | default: |
5972 | goto unknown; | |
5973 | } | |
5974 | ||
5975 | case 'm': | |
5976 | if (name[1] == 'y') | |
5977 | { /* my */ | |
5978 | return KEY_my; | |
5979 | } | |
5980 | ||
5981 | goto unknown; | |
5982 | ||
5983 | case 'n': | |
5984 | switch (name[1]) | |
5985 | { | |
5986 | case 'e': | |
5987 | { /* ne */ | |
5988 | return -KEY_ne; | |
5989 | } | |
5990 | ||
64446b2f NC |
5991 | case 'o': |
5992 | { /* no */ | |
5993 | return KEY_no; | |
5994 | } | |
5995 | ||
64446b2f NC |
5996 | default: |
5997 | goto unknown; | |
5998 | } | |
5999 | ||
6000 | case 'o': | |
6001 | if (name[1] == 'r') | |
6002 | { /* or */ | |
6003 | return -KEY_or; | |
6004 | } | |
6005 | ||
6006 | goto unknown; | |
6007 | ||
6008 | case 'q': | |
6009 | switch (name[1]) | |
6010 | { | |
6011 | case 'q': | |
6012 | { /* qq */ | |
6013 | return KEY_qq; | |
6014 | } | |
6015 | ||
64446b2f NC |
6016 | case 'r': |
6017 | { /* qr */ | |
6018 | return KEY_qr; | |
6019 | } | |
6020 | ||
64446b2f NC |
6021 | case 'w': |
6022 | { /* qw */ | |
6023 | return KEY_qw; | |
6024 | } | |
6025 | ||
64446b2f NC |
6026 | case 'x': |
6027 | { /* qx */ | |
6028 | return KEY_qx; | |
6029 | } | |
6030 | ||
64446b2f NC |
6031 | default: |
6032 | goto unknown; | |
6033 | } | |
6034 | ||
6035 | case 't': | |
6036 | if (name[1] == 'r') | |
6037 | { /* tr */ | |
6038 | return KEY_tr; | |
6039 | } | |
6040 | ||
6041 | goto unknown; | |
6042 | ||
6043 | case 'u': | |
6044 | if (name[1] == 'c') | |
6045 | { /* uc */ | |
6046 | return -KEY_uc; | |
6047 | } | |
6048 | ||
6049 | goto unknown; | |
6050 | ||
6051 | default: | |
6052 | goto unknown; | |
6053 | } | |
6054 | ||
6055 | case 3: /* 27 tokens of length 3 */ | |
6056 | switch (name[0]) | |
6057 | { | |
6058 | case 'E': | |
6059 | if (name[1] == 'N' && | |
6060 | name[2] == 'D') | |
6061 | { /* END */ | |
6062 | return KEY_END; | |
6063 | } | |
6064 | ||
6065 | goto unknown; | |
6066 | ||
6067 | case 'a': | |
6068 | switch (name[1]) | |
6069 | { | |
6070 | case 'b': | |
6071 | if (name[2] == 's') | |
6072 | { /* abs */ | |
6073 | return -KEY_abs; | |
6074 | } | |
6075 | ||
6076 | goto unknown; | |
6077 | ||
6078 | case 'n': | |
6079 | if (name[2] == 'd') | |
6080 | { /* and */ | |
6081 | return -KEY_and; | |
6082 | } | |
6083 | ||
6084 | goto unknown; | |
6085 | ||
6086 | default: | |
6087 | goto unknown; | |
6088 | } | |
6089 | ||
6090 | case 'c': | |
6091 | switch (name[1]) | |
6092 | { | |
6093 | case 'h': | |
6094 | if (name[2] == 'r') | |
6095 | { /* chr */ | |
6096 | return -KEY_chr; | |
6097 | } | |
6098 | ||
6099 | goto unknown; | |
6100 | ||
6101 | case 'm': | |
6102 | if (name[2] == 'p') | |
6103 | { /* cmp */ | |
6104 | return -KEY_cmp; | |
6105 | } | |
6106 | ||
6107 | goto unknown; | |
6108 | ||
6109 | case 'o': | |
6110 | if (name[2] == 's') | |
6111 | { /* cos */ | |
6112 | return -KEY_cos; | |
6113 | } | |
6114 | ||
6115 | goto unknown; | |
6116 | ||
6117 | default: | |
6118 | goto unknown; | |
6119 | } | |
6120 | ||
6121 | case 'd': | |
6122 | if (name[1] == 'i' && | |
6123 | name[2] == 'e') | |
6124 | { /* die */ | |
6125 | return -KEY_die; | |
6126 | } | |
6127 | ||
6128 | goto unknown; | |
6129 | ||
6130 | case 'e': | |
6131 | switch (name[1]) | |
6132 | { | |
6133 | case 'o': | |
6134 | if (name[2] == 'f') | |
6135 | { /* eof */ | |
6136 | return -KEY_eof; | |
6137 | } | |
6138 | ||
6139 | goto unknown; | |
6140 | ||
6141 | case 'x': | |
6142 | if (name[2] == 'p') | |
6143 | { /* exp */ | |
6144 | return -KEY_exp; | |
6145 | } | |
6146 | ||
6147 | goto unknown; | |
6148 | ||
6149 | default: | |
6150 | goto unknown; | |
6151 | } | |
6152 | ||
6153 | case 'f': | |
6154 | if (name[1] == 'o' && | |
6155 | name[2] == 'r') | |
6156 | { /* for */ | |
6157 | return KEY_for; | |
6158 | } | |
6159 | ||
6160 | goto unknown; | |
6161 | ||
6162 | case 'h': | |
6163 | if (name[1] == 'e' && | |
6164 | name[2] == 'x') | |
6165 | { /* hex */ | |
6166 | return -KEY_hex; | |
6167 | } | |
6168 | ||
6169 | goto unknown; | |
6170 | ||
6171 | case 'i': | |
6172 | if (name[1] == 'n' && | |
6173 | name[2] == 't') | |
6174 | { /* int */ | |
6175 | return -KEY_int; | |
6176 | } | |
6177 | ||
6178 | goto unknown; | |
6179 | ||
6180 | case 'l': | |
6181 | if (name[1] == 'o' && | |
6182 | name[2] == 'g') | |
6183 | { /* log */ | |
6184 | return -KEY_log; | |
6185 | } | |
6186 | ||
6187 | goto unknown; | |
6188 | ||
6189 | case 'm': | |
6190 | if (name[1] == 'a' && | |
6191 | name[2] == 'p') | |
6192 | { /* map */ | |
6193 | return KEY_map; | |
6194 | } | |
6195 | ||
6196 | goto unknown; | |
6197 | ||
6198 | case 'n': | |
6199 | if (name[1] == 'o' && | |
6200 | name[2] == 't') | |
6201 | { /* not */ | |
6202 | return -KEY_not; | |
6203 | } | |
6204 | ||
6205 | goto unknown; | |
6206 | ||
6207 | case 'o': | |
6208 | switch (name[1]) | |
6209 | { | |
6210 | case 'c': | |
6211 | if (name[2] == 't') | |
6212 | { /* oct */ | |
6213 | return -KEY_oct; | |
6214 | } | |
6215 | ||
6216 | goto unknown; | |
6217 | ||
6218 | case 'r': | |
6219 | if (name[2] == 'd') | |
6220 | { /* ord */ | |
6221 | return -KEY_ord; | |
6222 | } | |
6223 | ||
6224 | goto unknown; | |
6225 | ||
6226 | case 'u': | |
6227 | if (name[2] == 'r') | |
6228 | { /* our */ | |
6229 | return KEY_our; | |
6230 | } | |
6231 | ||
6232 | goto unknown; | |
6233 | ||
6234 | default: | |
6235 | goto unknown; | |
6236 | } | |
6237 | ||
6238 | case 'p': | |
6239 | if (name[1] == 'o') | |
6240 | { | |
6241 | switch (name[2]) | |
6242 | { | |
6243 | case 'p': | |
6244 | { /* pop */ | |
6245 | return -KEY_pop; | |
6246 | } | |
6247 | ||
64446b2f NC |
6248 | case 's': |
6249 | { /* pos */ | |
6250 | return KEY_pos; | |
6251 | } | |
6252 | ||
64446b2f NC |
6253 | default: |
6254 | goto unknown; | |
6255 | } | |
6256 | } | |
6257 | ||
6258 | goto unknown; | |
6259 | ||
6260 | case 'r': | |
6261 | if (name[1] == 'e' && | |
6262 | name[2] == 'f') | |
6263 | { /* ref */ | |
6264 | return -KEY_ref; | |
6265 | } | |
6266 | ||
6267 | goto unknown; | |
6268 | ||
6269 | case 's': | |
6270 | switch (name[1]) | |
6271 | { | |
6272 | case 'i': | |
6273 | if (name[2] == 'n') | |
6274 | { /* sin */ | |
6275 | return -KEY_sin; | |
6276 | } | |
6277 | ||
6278 | goto unknown; | |
6279 | ||
6280 | case 'u': | |
6281 | if (name[2] == 'b') | |
6282 | { /* sub */ | |
6283 | return KEY_sub; | |
6284 | } | |
6285 | ||
6286 | goto unknown; | |
6287 | ||
6288 | default: | |
6289 | goto unknown; | |
6290 | } | |
6291 | ||
6292 | case 't': | |
6293 | if (name[1] == 'i' && | |
6294 | name[2] == 'e') | |
6295 | { /* tie */ | |
6296 | return KEY_tie; | |
6297 | } | |
6298 | ||
6299 | goto unknown; | |
6300 | ||
6301 | case 'u': | |
6302 | if (name[1] == 's' && | |
6303 | name[2] == 'e') | |
6304 | { /* use */ | |
6305 | return KEY_use; | |
6306 | } | |
6307 | ||
6308 | goto unknown; | |
6309 | ||
6310 | case 'v': | |
6311 | if (name[1] == 'e' && | |
6312 | name[2] == 'c') | |
6313 | { /* vec */ | |
6314 | return -KEY_vec; | |
6315 | } | |
6316 | ||
6317 | goto unknown; | |
6318 | ||
6319 | case 'x': | |
6320 | if (name[1] == 'o' && | |
6321 | name[2] == 'r') | |
6322 | { /* xor */ | |
6323 | return -KEY_xor; | |
6324 | } | |
6325 | ||
6326 | goto unknown; | |
6327 | ||
6328 | default: | |
6329 | goto unknown; | |
6330 | } | |
6331 | ||
6332 | case 4: /* 40 tokens of length 4 */ | |
6333 | switch (name[0]) | |
6334 | { | |
6335 | case 'C': | |
6336 | if (name[1] == 'O' && | |
6337 | name[2] == 'R' && | |
6338 | name[3] == 'E') | |
6339 | { /* CORE */ | |
6340 | return -KEY_CORE; | |
6341 | } | |
6342 | ||
6343 | goto unknown; | |
6344 | ||
6345 | case 'I': | |
6346 | if (name[1] == 'N' && | |
6347 | name[2] == 'I' && | |
6348 | name[3] == 'T') | |
6349 | { /* INIT */ | |
6350 | return KEY_INIT; | |
6351 | } | |
6352 | ||
6353 | goto unknown; | |
6354 | ||
6355 | case 'b': | |
6356 | if (name[1] == 'i' && | |
6357 | name[2] == 'n' && | |
6358 | name[3] == 'd') | |
6359 | { /* bind */ | |
6360 | return -KEY_bind; | |
6361 | } | |
6362 | ||
6363 | goto unknown; | |
6364 | ||
6365 | case 'c': | |
6366 | if (name[1] == 'h' && | |
6367 | name[2] == 'o' && | |
6368 | name[3] == 'p') | |
6369 | { /* chop */ | |
6370 | return -KEY_chop; | |
6371 | } | |
6372 | ||
6373 | goto unknown; | |
6374 | ||
6375 | case 'd': | |
6376 | if (name[1] == 'u' && | |
6377 | name[2] == 'm' && | |
6378 | name[3] == 'p') | |
6379 | { /* dump */ | |
6380 | return -KEY_dump; | |
6381 | } | |
6382 | ||
6383 | goto unknown; | |
6384 | ||
6385 | case 'e': | |
6386 | switch (name[1]) | |
6387 | { | |
6388 | case 'a': | |
6389 | if (name[2] == 'c' && | |
6390 | name[3] == 'h') | |
6391 | { /* each */ | |
6392 | return -KEY_each; | |
6393 | } | |
6394 | ||
6395 | goto unknown; | |
6396 | ||
6397 | case 'l': | |
6398 | if (name[2] == 's' && | |
6399 | name[3] == 'e') | |
6400 | { /* else */ | |
6401 | return KEY_else; | |
6402 | } | |
6403 | ||
6404 | goto unknown; | |
6405 | ||
6406 | case 'v': | |
6407 | if (name[2] == 'a' && | |
6408 | name[3] == 'l') | |
6409 | { /* eval */ | |
6410 | return KEY_eval; | |
6411 | } | |
6412 | ||
6413 | goto unknown; | |
6414 | ||
6415 | case 'x': | |
6416 | switch (name[2]) | |
6417 | { | |
6418 | case 'e': | |
6419 | if (name[3] == 'c') | |
6420 | { /* exec */ | |
6421 | return -KEY_exec; | |
6422 | } | |
6423 | ||
6424 | goto unknown; | |
6425 | ||
6426 | case 'i': | |
6427 | if (name[3] == 't') | |
6428 | { /* exit */ | |
6429 | return -KEY_exit; | |
6430 | } | |
6431 | ||
6432 | goto unknown; | |
6433 | ||
6434 | default: | |
6435 | goto unknown; | |
6436 | } | |
6437 | ||
6438 | default: | |
6439 | goto unknown; | |
6440 | } | |
6441 | ||
6442 | case 'f': | |
6443 | if (name[1] == 'o' && | |
6444 | name[2] == 'r' && | |
6445 | name[3] == 'k') | |
6446 | { /* fork */ | |
6447 | return -KEY_fork; | |
6448 | } | |
6449 | ||
6450 | goto unknown; | |
6451 | ||
6452 | case 'g': | |
6453 | switch (name[1]) | |
6454 | { | |
6455 | case 'e': | |
6456 | if (name[2] == 't' && | |
6457 | name[3] == 'c') | |
6458 | { /* getc */ | |
6459 | return -KEY_getc; | |
6460 | } | |
6461 | ||
6462 | goto unknown; | |
6463 | ||
6464 | case 'l': | |
6465 | if (name[2] == 'o' && | |
6466 | name[3] == 'b') | |
6467 | { /* glob */ | |
6468 | return KEY_glob; | |
6469 | } | |
6470 | ||
6471 | goto unknown; | |
6472 | ||
6473 | case 'o': | |
6474 | if (name[2] == 't' && | |
6475 | name[3] == 'o') | |
6476 | { /* goto */ | |
6477 | return KEY_goto; | |
6478 | } | |
6479 | ||
6480 | goto unknown; | |
6481 | ||
6482 | case 'r': | |
6483 | if (name[2] == 'e' && | |
6484 | name[3] == 'p') | |
6485 | { /* grep */ | |
6486 | return KEY_grep; | |
6487 | } | |
6488 | ||
6489 | goto unknown; | |
6490 | ||
6491 | default: | |
6492 | goto unknown; | |
6493 | } | |
6494 | ||
6495 | case 'j': | |
6496 | if (name[1] == 'o' && | |
6497 | name[2] == 'i' && | |
6498 | name[3] == 'n') | |
6499 | { /* join */ | |
6500 | return -KEY_join; | |
6501 | } | |
6502 | ||
6503 | goto unknown; | |
6504 | ||
6505 | case 'k': | |
6506 | switch (name[1]) | |
6507 | { | |
6508 | case 'e': | |
6509 | if (name[2] == 'y' && | |
6510 | name[3] == 's') | |
6511 | { /* keys */ | |
6512 | return -KEY_keys; | |
6513 | } | |
6514 | ||
6515 | goto unknown; | |
6516 | ||
6517 | case 'i': | |
6518 | if (name[2] == 'l' && | |
6519 | name[3] == 'l') | |
6520 | { /* kill */ | |
6521 | return -KEY_kill; | |
6522 | } | |
6523 | ||
6524 | goto unknown; | |
6525 | ||
6526 | default: | |
6527 | goto unknown; | |
6528 | } | |
6529 | ||
6530 | case 'l': | |
6531 | switch (name[1]) | |
6532 | { | |
6533 | case 'a': | |
6534 | if (name[2] == 's' && | |
6535 | name[3] == 't') | |
6536 | { /* last */ | |
6537 | return KEY_last; | |
6538 | } | |
6539 | ||
6540 | goto unknown; | |
6541 | ||
6542 | case 'i': | |
6543 | if (name[2] == 'n' && | |
6544 | name[3] == 'k') | |
6545 | { /* link */ | |
6546 | return -KEY_link; | |
6547 | } | |
6548 | ||
6549 | goto unknown; | |
6550 | ||
6551 | case 'o': | |
6552 | if (name[2] == 'c' && | |
6553 | name[3] == 'k') | |
6554 | { /* lock */ | |
6555 | return -KEY_lock; | |
6556 | } | |
6557 | ||
6558 | goto unknown; | |
6559 | ||
6560 | default: | |
6561 | goto unknown; | |
6562 | } | |
6563 | ||
6564 | case 'n': | |
6565 | if (name[1] == 'e' && | |
6566 | name[2] == 'x' && | |
6567 | name[3] == 't') | |
6568 | { /* next */ | |
6569 | return KEY_next; | |
6570 | } | |
6571 | ||
6572 | goto unknown; | |
6573 | ||
6574 | case 'o': | |
6575 | if (name[1] == 'p' && | |
6576 | name[2] == 'e' && | |
6577 | name[3] == 'n') | |
6578 | { /* open */ | |
6579 | return -KEY_open; | |
6580 | } | |
6581 | ||
6582 | goto unknown; | |
6583 | ||
6584 | case 'p': | |
6585 | switch (name[1]) | |
6586 | { | |
6587 | case 'a': | |
6588 | if (name[2] == 'c' && | |
6589 | name[3] == 'k') | |
6590 | { /* pack */ | |
6591 | return -KEY_pack; | |
6592 | } | |
6593 | ||
6594 | goto unknown; | |
6595 | ||
6596 | case 'i': | |
6597 | if (name[2] == 'p' && | |
6598 | name[3] == 'e') | |
6599 | { /* pipe */ | |
6600 | return -KEY_pipe; | |
6601 | } | |
6602 | ||
6603 | goto unknown; | |
6604 | ||
6605 | case 'u': | |
6606 | if (name[2] == 's' && | |
6607 | name[3] == 'h') | |
6608 | { /* push */ | |
6609 | return -KEY_push; | |
6610 | } | |
6611 | ||
6612 | goto unknown; | |
6613 | ||
6614 | default: | |
6615 | goto unknown; | |
6616 | } | |
6617 | ||
6618 | case 'r': | |
6619 | switch (name[1]) | |
6620 | { | |
6621 | case 'a': | |
6622 | if (name[2] == 'n' && | |
6623 | name[3] == 'd') | |
6624 | { /* rand */ | |
6625 | return -KEY_rand; | |
6626 | } | |
6627 | ||
6628 | goto unknown; | |
6629 | ||
6630 | case 'e': | |
6631 | switch (name[2]) | |
6632 | { | |
6633 | case 'a': | |
6634 | if (name[3] == 'd') | |
6635 | { /* read */ | |
6636 | return -KEY_read; | |
6637 | } | |
6638 | ||
6639 | goto unknown; | |
6640 | ||
6641 | case 'c': | |
6642 | if (name[3] == 'v') | |
6643 | { /* recv */ | |
6644 | return -KEY_recv; | |
6645 | } | |
6646 | ||
6647 | goto unknown; | |
6648 | ||
6649 | case 'd': | |
6650 | if (name[3] == 'o') | |
6651 | { /* redo */ | |
6652 | return KEY_redo; | |
6653 | } | |
6654 | ||
6655 | goto unknown; | |
6656 | ||
6657 | default: | |
6658 | goto unknown; | |
6659 | } | |
6660 | ||
6661 | default: | |
6662 | goto unknown; | |
6663 | } | |
6664 | ||
6665 | case 's': | |
6666 | switch (name[1]) | |
6667 | { | |
6668 | case 'e': | |
6669 | switch (name[2]) | |
6670 | { | |
6671 | case 'e': | |
6672 | if (name[3] == 'k') | |
6673 | { /* seek */ | |
6674 | return -KEY_seek; | |
6675 | } | |
6676 | ||
6677 | goto unknown; | |
6678 | ||
6679 | case 'n': | |
6680 | if (name[3] == 'd') | |
6681 | { /* send */ | |
6682 | return -KEY_send; | |
6683 | } | |
6684 | ||
6685 | goto unknown; | |
6686 | ||
6687 | default: | |
6688 | goto unknown; | |
6689 | } | |
6690 | ||
6691 | case 'o': | |
6692 | if (name[2] == 'r' && | |
6693 | name[3] == 't') | |
6694 | { /* sort */ | |
6695 | return KEY_sort; | |
6696 | } | |
6697 | ||
6698 | goto unknown; | |
6699 | ||
6700 | case 'q': | |
6701 | if (name[2] == 'r' && | |
6702 | name[3] == 't') | |
6703 | { /* sqrt */ | |
6704 | return -KEY_sqrt; | |
6705 | } | |
6706 | ||
6707 | goto unknown; | |
6708 | ||
6709 | case 't': | |
6710 | if (name[2] == 'a' && | |
6711 | name[3] == 't') | |
6712 | { /* stat */ | |
6713 | return -KEY_stat; | |
6714 | } | |
6715 | ||
6716 | goto unknown; | |
6717 | ||
6718 | default: | |
6719 | goto unknown; | |
6720 | } | |
6721 | ||
6722 | case 't': | |
6723 | switch (name[1]) | |
6724 | { | |
6725 | case 'e': | |
6726 | if (name[2] == 'l' && | |
6727 | name[3] == 'l') | |
6728 | { /* tell */ | |
6729 | return -KEY_tell; | |
6730 | } | |
6731 | ||
6732 | goto unknown; | |
6733 | ||
6734 | case 'i': | |
6735 | switch (name[2]) | |
6736 | { | |
6737 | case 'e': | |
6738 | if (name[3] == 'd') | |
6739 | { /* tied */ | |
6740 | return KEY_tied; | |
6741 | } | |
6742 | ||
6743 | goto unknown; | |
6744 | ||
6745 | case 'm': | |
6746 | if (name[3] == 'e') | |
6747 | { /* time */ | |
6748 | return -KEY_time; | |
6749 | } | |
6750 | ||
6751 | goto unknown; | |
6752 | ||
6753 | default: | |
6754 | goto unknown; | |
6755 | } | |
6756 | ||
6757 | default: | |
6758 | goto unknown; | |
6759 | } | |
6760 | ||
6761 | case 'w': | |
6762 | if (name[1] == 'a') | |
6763 | { | |
6764 | switch (name[2]) | |
6765 | { | |
6766 | case 'i': | |
6767 | if (name[3] == 't') | |
6768 | { /* wait */ | |
6769 | return -KEY_wait; | |
6770 | } | |
6771 | ||
6772 | goto unknown; | |
6773 | ||
6774 | case 'r': | |
6775 | if (name[3] == 'n') | |
6776 | { /* warn */ | |
6777 | return -KEY_warn; | |
6778 | } | |
6779 | ||
6780 | goto unknown; | |
6781 | ||
6782 | default: | |
6783 | goto unknown; | |
6784 | } | |
6785 | } | |
6786 | ||
6787 | goto unknown; | |
6788 | ||
6789 | default: | |
6790 | goto unknown; | |
6791 | } | |
6792 | ||
6793 | case 5: /* 36 tokens of length 5 */ | |
6794 | switch (name[0]) | |
6795 | { | |
6796 | case 'B': | |
6797 | if (name[1] == 'E' && | |
6798 | name[2] == 'G' && | |
6799 | name[3] == 'I' && | |
6800 | name[4] == 'N') | |
6801 | { /* BEGIN */ | |
6802 | return KEY_BEGIN; | |
6803 | } | |
6804 | ||
6805 | goto unknown; | |
6806 | ||
6807 | case 'C': | |
6808 | if (name[1] == 'H' && | |
6809 | name[2] == 'E' && | |
6810 | name[3] == 'C' && | |
6811 | name[4] == 'K') | |
6812 | { /* CHECK */ | |
6813 | return KEY_CHECK; | |
6814 | } | |
6815 | ||
6816 | goto unknown; | |
6817 | ||
6818 | case 'a': | |
6819 | switch (name[1]) | |
6820 | { | |
6821 | case 'l': | |
6822 | if (name[2] == 'a' && | |
6823 | name[3] == 'r' && | |
6824 | name[4] == 'm') | |
6825 | { /* alarm */ | |
6826 | return -KEY_alarm; | |
6827 | } | |
6828 | ||
6829 | goto unknown; | |
6830 | ||
6831 | case 't': | |
6832 | if (name[2] == 'a' && | |
6833 | name[3] == 'n' && | |
6834 | name[4] == '2') | |
6835 | { /* atan2 */ | |
6836 | return -KEY_atan2; | |
6837 | } | |
6838 | ||
6839 | goto unknown; | |
6840 | ||
6841 | default: | |
6842 | goto unknown; | |
6843 | } | |
6844 | ||
6845 | case 'b': | |
6846 | if (name[1] == 'l' && | |
6847 | name[2] == 'e' && | |
6848 | name[3] == 's' && | |
6849 | name[4] == 's') | |
6850 | { /* bless */ | |
6851 | return -KEY_bless; | |
6852 | } | |
6853 | ||
6854 | goto unknown; | |
6855 | ||
6856 | case 'c': | |
6857 | switch (name[1]) | |
6858 | { | |
6859 | case 'h': | |
6860 | switch (name[2]) | |
6861 | { | |
6862 | case 'd': | |
6863 | if (name[3] == 'i' && | |
6864 | name[4] == 'r') | |
6865 | { /* chdir */ | |
6866 | return -KEY_chdir; | |
6867 | } | |
6868 | ||
6869 | goto unknown; | |
6870 | ||
6871 | case 'm': | |
6872 | if (name[3] == 'o' && | |
6873 | name[4] == 'd') | |
6874 | { /* chmod */ | |
6875 | return -KEY_chmod; | |
6876 | } | |
6877 | ||
6878 | goto unknown; | |
6879 | ||
6880 | case 'o': | |
6881 | switch (name[3]) | |
6882 | { | |
6883 | case 'm': | |
6884 | if (name[4] == 'p') | |
6885 | { /* chomp */ | |
6886 | return -KEY_chomp; | |
6887 | } | |
6888 | ||
6889 | goto unknown; | |
6890 | ||
6891 | case 'w': | |
6892 | if (name[4] == 'n') | |
6893 | { /* chown */ | |
6894 | return -KEY_chown; | |
6895 | } | |
6896 | ||
6897 | goto unknown; | |
6898 | ||
6899 | default: | |
6900 | goto unknown; | |
6901 | } | |
6902 | ||
6903 | default: | |
6904 | goto unknown; | |
6905 | } | |
6906 | ||
6907 | case 'l': | |
6908 | if (name[2] == 'o' && | |
6909 | name[3] == 's' && | |
6910 | name[4] == 'e') | |
6911 | { /* close */ | |
6912 | return -KEY_close; | |
6913 | } | |
6914 | ||
6915 | goto unknown; | |
6916 | ||
6917 | case 'r': | |
6918 | if (name[2] == 'y' && | |
6919 | name[3] == 'p' && | |
6920 | name[4] == 't') | |
6921 | { /* crypt */ | |
6922 | return -KEY_crypt; | |
6923 | } | |
6924 | ||
6925 | goto unknown; | |
6926 | ||
6927 | default: | |
6928 | goto unknown; | |
6929 | } | |
6930 | ||
6931 | case 'e': | |
6932 | if (name[1] == 'l' && | |
6933 | name[2] == 's' && | |
6934 | name[3] == 'i' && | |
6935 | name[4] == 'f') | |
6936 | { /* elsif */ | |
6937 | return KEY_elsif; | |
6938 | } | |
6939 | ||
6940 | goto unknown; | |
6941 | ||
6942 | case 'f': | |
6943 | switch (name[1]) | |
6944 | { | |
6945 | case 'c': | |
6946 | if (name[2] == 'n' && | |
6947 | name[3] == 't' && | |
6948 | name[4] == 'l') | |
6949 | { /* fcntl */ | |
6950 | return -KEY_fcntl; | |
6951 | } | |
6952 | ||
6953 | goto unknown; | |
6954 | ||
6955 | case 'l': | |
6956 | if (name[2] == 'o' && | |
6957 | name[3] == 'c' && | |
6958 | name[4] == 'k') | |
6959 | { /* flock */ | |
6960 | return -KEY_flock; | |
6961 | } | |
6962 | ||
6963 | goto unknown; | |
6964 | ||
6965 | default: | |
6966 | goto unknown; | |
6967 | } | |
6968 | ||
6969 | case 'i': | |
6970 | switch (name[1]) | |
6971 | { | |
6972 | case 'n': | |
6973 | if (name[2] == 'd' && | |
6974 | name[3] == 'e' && | |
6975 | name[4] == 'x') | |
6976 | { /* index */ | |
6977 | return -KEY_index; | |
6978 | } | |
6979 | ||
6980 | goto unknown; | |
6981 | ||
6982 | case 'o': | |
6983 | if (name[2] == 'c' && | |
6984 | name[3] == 't' && | |
6985 | name[4] == 'l') | |
6986 | { /* ioctl */ | |
6987 | return -KEY_ioctl; | |
6988 | } | |
6989 | ||
6990 | goto unknown; | |
6991 | ||
6992 | default: | |
6993 | goto unknown; | |
6994 | } | |
6995 | ||
6996 | case 'l': | |
6997 | switch (name[1]) | |
6998 | { | |
6999 | case 'o': | |
7000 | if (name[2] == 'c' && | |
7001 | name[3] == 'a' && | |
7002 | name[4] == 'l') | |
7003 | { /* local */ | |
7004 | return KEY_local; | |
7005 | } | |
7006 | ||
7007 | goto unknown; | |
7008 | ||
7009 | case 's': | |
7010 | if (name[2] == 't' && | |
7011 | name[3] == 'a' && | |
7012 | name[4] == 't') | |
7013 | { /* lstat */ | |
7014 | return -KEY_lstat; | |
7015 | } | |
7016 | ||
7017 | goto unknown; | |
7018 | ||
7019 | default: | |
7020 | goto unknown; | |
7021 | } | |
7022 | ||
7023 | case 'm': | |
7024 | if (name[1] == 'k' && | |
7025 | name[2] == 'd' && | |
7026 | name[3] == 'i' && | |
7027 | name[4] == 'r') | |
7028 | { /* mkdir */ | |
7029 | return -KEY_mkdir; | |
7030 | } | |
7031 | ||
7032 | goto unknown; | |
7033 | ||
7034 | case 'p': | |
7035 | if (name[1] == 'r' && | |
7036 | name[2] == 'i' && | |
7037 | name[3] == 'n' && | |
7038 | name[4] == 't') | |
7039 | { /* print */ | |
7040 | return KEY_print; | |
7041 | } | |
7042 | ||
7043 | goto unknown; | |
7044 | ||
7045 | case 'r': | |
7046 | switch (name[1]) | |
7047 | { | |
7048 | case 'e': | |
7049 | if (name[2] == 's' && | |
7050 | name[3] == 'e' && | |
7051 | name[4] == 't') | |
7052 | { /* reset */ | |
7053 | return -KEY_reset; | |
7054 | } | |
7055 | ||
7056 | goto unknown; | |
7057 | ||
7058 | case 'm': | |
7059 | if (name[2] == 'd' && | |
7060 | name[3] == 'i' && | |
7061 | name[4] == 'r') | |
7062 | { /* rmdir */ | |
7063 | return -KEY_rmdir; | |
7064 | } | |
7065 | ||
7066 | goto unknown; | |
7067 | ||
7068 | default: | |
7069 | goto unknown; | |
7070 | } | |
7071 | ||
7072 | case 's': | |
7073 | switch (name[1]) | |
7074 | { | |
7075 | case 'e': | |
7076 | if (name[2] == 'm' && | |
7077 | name[3] == 'o' && | |
7078 | name[4] == 'p') | |
7079 | { /* semop */ | |
7080 | return -KEY_semop; | |
7081 | } | |
7082 | ||
7083 | goto unknown; | |
7084 | ||
7085 | case 'h': | |
7086 | if (name[2] == 'i' && | |
7087 | name[3] == 'f' && | |
7088 | name[4] == 't') | |
7089 | { /* shift */ | |
7090 | return -KEY_shift; | |
7091 | } | |
7092 | ||
7093 | goto unknown; | |
7094 | ||
7095 | case 'l': | |
7096 | if (name[2] == 'e' && | |
7097 | name[3] == 'e' && | |
7098 | name[4] == 'p') | |
7099 | { /* sleep */ | |
7100 | return -KEY_sleep; | |
7101 | } | |
7102 | ||
7103 | goto unknown; | |
7104 | ||
7105 | case 'p': | |
7106 | if (name[2] == 'l' && | |
7107 | name[3] == 'i' && | |
7108 | name[4] == 't') | |
7109 | { /* split */ | |
7110 | return KEY_split; | |
7111 | } | |
7112 | ||
7113 | goto unknown; | |
7114 | ||
7115 | case 'r': | |
7116 | if (name[2] == 'a' && | |
7117 | name[3] == 'n' && | |
7118 | name[4] == 'd') | |
7119 | { /* srand */ | |
7120 | return -KEY_srand; | |
7121 | } | |
7122 | ||
7123 | goto unknown; | |
7124 | ||
7125 | case 't': | |
7126 | if (name[2] == 'u' && | |
7127 | name[3] == 'd' && | |
7128 | name[4] == 'y') | |
7129 | { /* study */ | |
7130 | return KEY_study; | |
7131 | } | |
7132 | ||
7133 | goto unknown; | |
7134 | ||
7135 | default: | |
7136 | goto unknown; | |
7137 | } | |
7138 | ||
7139 | case 't': | |
7140 | if (name[1] == 'i' && | |
7141 | name[2] == 'm' && | |
7142 | name[3] == 'e' && | |
7143 | name[4] == 's') | |
7144 | { /* times */ | |
7145 | return -KEY_times; | |
7146 | } | |
7147 | ||
7148 | goto unknown; | |
7149 | ||
7150 | case 'u': | |
7151 | switch (name[1]) | |
7152 | { | |
7153 | case 'm': | |
7154 | if (name[2] == 'a' && | |
7155 | name[3] == 's' && | |
7156 | name[4] == 'k') | |
7157 | { /* umask */ | |
7158 | return -KEY_umask; | |
7159 | } | |
7160 | ||
7161 | goto unknown; | |
7162 | ||
7163 | case 'n': | |
7164 | switch (name[2]) | |
7165 | { | |
7166 | case 'd': | |
7167 | if (name[3] == 'e' && | |
7168 | name[4] == 'f') | |
7169 | { /* undef */ | |
7170 | return KEY_undef; | |
7171 | } | |
7172 | ||
7173 | goto unknown; | |
7174 | ||
7175 | case 't': | |
7176 | if (name[3] == 'i') | |
7177 | { | |
7178 | switch (name[4]) | |
7179 | { | |
7180 | case 'e': | |
7181 | { /* untie */ | |
7182 | return KEY_untie; | |
7183 | } | |
7184 | ||
64446b2f NC |
7185 | case 'l': |
7186 | { /* until */ | |
7187 | return KEY_until; | |
7188 | } | |
7189 | ||
64446b2f NC |
7190 | default: |
7191 | goto unknown; | |
7192 | } | |
7193 | } | |
7194 | ||
7195 | goto unknown; | |
7196 | ||
7197 | default: | |
7198 | goto unknown; | |
7199 | } | |
7200 | ||
7201 | case 't': | |
7202 | if (name[2] == 'i' && | |
7203 | name[3] == 'm' && | |
7204 | name[4] == 'e') | |
7205 | { /* utime */ | |
7206 | return -KEY_utime; | |
7207 | } | |
7208 | ||
7209 | goto unknown; | |
7210 | ||
7211 | default: | |
7212 | goto unknown; | |
7213 | } | |
7214 | ||
7215 | case 'w': | |
7216 | switch (name[1]) | |
7217 | { | |
7218 | case 'h': | |
7219 | if (name[2] == 'i' && | |
7220 | name[3] == 'l' && | |
7221 | name[4] == 'e') | |
7222 | { /* while */ | |
7223 | return KEY_while; | |
7224 | } | |
7225 | ||
7226 | goto unknown; | |
7227 | ||
7228 | case 'r': | |
7229 | if (name[2] == 'i' && | |
7230 | name[3] == 't' && | |
7231 | name[4] == 'e') | |
7232 | { /* write */ | |
7233 | return -KEY_write; | |
7234 | } | |
7235 | ||
7236 | goto unknown; | |
7237 | ||
7238 | default: | |
7239 | goto unknown; | |
7240 | } | |
7241 | ||
7242 | default: | |
7243 | goto unknown; | |
7244 | } | |
7245 | ||
7246 | case 6: /* 33 tokens of length 6 */ | |
7247 | switch (name[0]) | |
7248 | { | |
7249 | case 'a': | |
7250 | if (name[1] == 'c' && | |
7251 | name[2] == 'c' && | |
7252 | name[3] == 'e' && | |
7253 | name[4] == 'p' && | |
7254 | name[5] == 't') | |
7255 | { /* accept */ | |
7256 | return -KEY_accept; | |
7257 | } | |
7258 | ||
7259 | goto unknown; | |
7260 | ||
7261 | case 'c': | |
7262 | switch (name[1]) | |
7263 | { | |
7264 | case 'a': | |
7265 | if (name[2] == 'l' && | |
7266 | name[3] == 'l' && | |
7267 | name[4] == 'e' && | |
7268 | name[5] == 'r') | |
7269 | { /* caller */ | |
7270 | return -KEY_caller; | |
7271 | } | |
7272 | ||
7273 | goto unknown; | |
7274 | ||
7275 | case 'h': | |
7276 | if (name[2] == 'r' && | |
7277 | name[3] == 'o' && | |
7278 | name[4] == 'o' && | |
7279 | name[5] == 't') | |
7280 | { /* chroot */ | |
7281 | return -KEY_chroot; | |
7282 | } | |
7283 | ||
7284 | goto unknown; | |
7285 | ||
7286 | default: | |
7287 | goto unknown; | |
7288 | } | |
7289 | ||
7290 | case 'd': | |
7291 | if (name[1] == 'e' && | |
7292 | name[2] == 'l' && | |
7293 | name[3] == 'e' && | |
7294 | name[4] == 't' && | |
7295 | name[5] == 'e') | |
7296 | { /* delete */ | |
7297 | return KEY_delete; | |
7298 | } | |
7299 | ||
7300 | goto unknown; | |
7301 | ||
7302 | case 'e': | |
7303 | switch (name[1]) | |
7304 | { | |
7305 | case 'l': | |
7306 | if (name[2] == 's' && | |
7307 | name[3] == 'e' && | |
7308 | name[4] == 'i' && | |
7309 | name[5] == 'f') | |
7310 | { /* elseif */ | |
7311 | if(ckWARN_d(WARN_SYNTAX)) | |
7312 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
7313 | } | |
7314 | ||
7315 | goto unknown; | |
7316 | ||
7317 | case 'x': | |
7318 | if (name[2] == 'i' && | |
7319 | name[3] == 's' && | |
7320 | name[4] == 't' && | |
7321 | name[5] == 's') | |
7322 | { /* exists */ | |
7323 | return KEY_exists; | |
7324 | } | |
7325 | ||
7326 | goto unknown; | |
7327 | ||
7328 | default: | |
7329 | goto unknown; | |
7330 | } | |
7331 | ||
7332 | case 'f': | |
7333 | switch (name[1]) | |
7334 | { | |
7335 | case 'i': | |
7336 | if (name[2] == 'l' && | |
7337 | name[3] == 'e' && | |
7338 | name[4] == 'n' && | |
7339 | name[5] == 'o') | |
7340 | { /* fileno */ | |
7341 | return -KEY_fileno; | |
7342 | } | |
7343 | ||
7344 | goto unknown; | |
7345 | ||
7346 | case 'o': | |
7347 | if (name[2] == 'r' && | |
7348 | name[3] == 'm' && | |
7349 | name[4] == 'a' && | |
7350 | name[5] == 't') | |
7351 | { /* format */ | |
7352 | return KEY_format; | |
7353 | } | |
7354 | ||
7355 | goto unknown; | |
7356 | ||
7357 | default: | |
7358 | goto unknown; | |
7359 | } | |
7360 | ||
7361 | case 'g': | |
7362 | if (name[1] == 'm' && | |
7363 | name[2] == 't' && | |
7364 | name[3] == 'i' && | |
7365 | name[4] == 'm' && | |
7366 | name[5] == 'e') | |
7367 | { /* gmtime */ | |
7368 | return -KEY_gmtime; | |
7369 | } | |
7370 | ||
7371 | goto unknown; | |
7372 | ||
7373 | case 'l': | |
7374 | switch (name[1]) | |
7375 | { | |
7376 | case 'e': | |
7377 | if (name[2] == 'n' && | |
7378 | name[3] == 'g' && | |
7379 | name[4] == 't' && | |
7380 | name[5] == 'h') | |
7381 | { /* length */ | |
7382 | return -KEY_length; | |
7383 | } | |
7384 | ||
7385 | goto unknown; | |
7386 | ||
7387 | case 'i': | |
7388 | if (name[2] == 's' && | |
7389 | name[3] == 't' && | |
7390 | name[4] == 'e' && | |
7391 | name[5] == 'n') | |
7392 | { /* listen */ | |
7393 | return -KEY_listen; | |
7394 | } | |
7395 | ||
7396 | goto unknown; | |
7397 | ||
7398 | default: | |
7399 | goto unknown; | |
7400 | } | |
7401 | ||
7402 | case 'm': | |
7403 | if (name[1] == 's' && | |
7404 | name[2] == 'g') | |
7405 | { | |
7406 | switch (name[3]) | |
7407 | { | |
7408 | case 'c': | |
7409 | if (name[4] == 't' && | |
7410 | name[5] == 'l') | |
7411 | { /* msgctl */ | |
7412 | return -KEY_msgctl; | |
7413 | } | |
7414 | ||
7415 | goto unknown; | |
7416 | ||
7417 | case 'g': | |
7418 | if (name[4] == 'e' && | |
7419 | name[5] == 't') | |
7420 | { /* msgget */ | |
7421 | return -KEY_msgget; | |
7422 | } | |
7423 | ||
7424 | goto unknown; | |
7425 | ||
7426 | case 'r': | |
7427 | if (name[4] == 'c' && | |
7428 | name[5] == 'v') | |
7429 | { /* msgrcv */ | |
7430 | return -KEY_msgrcv; | |
7431 | } | |
7432 | ||
7433 | goto unknown; | |
7434 | ||
7435 | case 's': | |
7436 | if (name[4] == 'n' && | |
7437 | name[5] == 'd') | |
7438 | { /* msgsnd */ | |
7439 | return -KEY_msgsnd; | |
7440 | } | |
7441 | ||
7442 | goto unknown; | |
7443 | ||
7444 | default: | |
7445 | goto unknown; | |
7446 | } | |
7447 | } | |
7448 | ||
7449 | goto unknown; | |
7450 | ||
7451 | case 'p': | |
7452 | if (name[1] == 'r' && | |
7453 | name[2] == 'i' && | |
7454 | name[3] == 'n' && | |
7455 | name[4] == 't' && | |
7456 | name[5] == 'f') | |
7457 | { /* printf */ | |
7458 | return KEY_printf; | |
7459 | } | |
7460 | ||
7461 | goto unknown; | |
7462 | ||
7463 | case 'r': | |
7464 | switch (name[1]) | |
7465 | { | |
7466 | case 'e': | |
7467 | switch (name[2]) | |
7468 | { | |
7469 | case 'n': | |
7470 | if (name[3] == 'a' && | |
7471 | name[4] == 'm' && | |
7472 | name[5] == 'e') | |
7473 | { /* rename */ | |
7474 | return -KEY_rename; | |
7475 | } | |
7476 | ||
7477 | goto unknown; | |
7478 | ||
7479 | case 't': | |
7480 | if (name[3] == 'u' && | |
7481 | name[4] == 'r' && | |
7482 | name[5] == 'n') | |
7483 | { /* return */ | |
7484 | return KEY_return; | |
7485 | } | |
7486 | ||
7487 | goto unknown; | |
7488 | ||
7489 | default: | |
7490 | goto unknown; | |
7491 | } | |
7492 | ||
7493 | case 'i': | |
7494 | if (name[2] == 'n' && | |
7495 | name[3] == 'd' && | |
7496 | name[4] == 'e' && | |
7497 | name[5] == 'x') | |
7498 | { /* rindex */ | |
7499 | return -KEY_rindex; | |
7500 | } | |
7501 | ||
7502 | goto unknown; | |
7503 | ||
7504 | default: | |
7505 | goto unknown; | |
7506 | } | |
7507 | ||
7508 | case 's': | |
7509 | switch (name[1]) | |
7510 | { | |
7511 | case 'c': | |
7512 | if (name[2] == 'a' && | |
7513 | name[3] == 'l' && | |
7514 | name[4] == 'a' && | |
7515 | name[5] == 'r') | |
7516 | { /* scalar */ | |
7517 | return KEY_scalar; | |
7518 | } | |
7519 | ||
7520 | goto unknown; | |
7521 | ||
7522 | case 'e': | |
7523 | switch (name[2]) | |
7524 | { | |
7525 | case 'l': | |
7526 | if (name[3] == 'e' && | |
7527 | name[4] == 'c' && | |
7528 | name[5] == 't') | |
7529 | { /* select */ | |
7530 | return -KEY_select; | |
7531 | } | |
7532 | ||
7533 | goto unknown; | |
7534 | ||
7535 | case 'm': | |
7536 | switch (name[3]) | |
7537 | { | |
7538 | case 'c': | |
7539 | if (name[4] == 't' && | |
7540 | name[5] == 'l') | |
7541 | { /* semctl */ | |
7542 | return -KEY_semctl; | |
7543 | } | |
7544 | ||
7545 | goto unknown; | |
7546 | ||
7547 | case 'g': | |
7548 | if (name[4] == 'e' && | |
7549 | name[5] == 't') | |
7550 | { /* semget */ | |
7551 | return -KEY_semget; | |
7552 | } | |
7553 | ||
7554 | goto unknown; | |
7555 | ||
7556 | default: | |
7557 | goto unknown; | |
7558 | } | |
7559 | ||
7560 | default: | |
7561 | goto unknown; | |
7562 | } | |
7563 | ||
7564 | case 'h': | |
7565 | if (name[2] == 'm') | |
7566 | { | |
7567 | switch (name[3]) | |
7568 | { | |
7569 | case 'c': | |
7570 | if (name[4] == 't' && | |
7571 | name[5] == 'l') | |
7572 | { /* shmctl */ | |
7573 | return -KEY_shmctl; | |
7574 | } | |
7575 | ||
7576 | goto unknown; | |
7577 | ||
7578 | case 'g': | |
7579 | if (name[4] == 'e' && | |
7580 | name[5] == 't') | |
7581 | { /* shmget */ | |
7582 | return -KEY_shmget; | |
7583 | } | |
7584 | ||
7585 | goto unknown; | |
7586 | ||
7587 | default: | |
7588 | goto unknown; | |
7589 | } | |
7590 | } | |
7591 | ||
7592 | goto unknown; | |
7593 | ||
7594 | case 'o': | |
7595 | if (name[2] == 'c' && | |
7596 | name[3] == 'k' && | |
7597 | name[4] == 'e' && | |
7598 | name[5] == 't') | |
7599 | { /* socket */ | |
7600 | return -KEY_socket; | |
7601 | } | |
7602 | ||
7603 | goto unknown; | |
7604 | ||
7605 | case 'p': | |
7606 | if (name[2] == 'l' && | |
7607 | name[3] == 'i' && | |
7608 | name[4] == 'c' && | |
7609 | name[5] == 'e') | |
7610 | { /* splice */ | |
7611 | return -KEY_splice; | |
7612 | } | |
7613 | ||
7614 | goto unknown; | |
7615 | ||
7616 | case 'u': | |
7617 | if (name[2] == 'b' && | |
7618 | name[3] == 's' && | |
7619 | name[4] == 't' && | |
7620 | name[5] == 'r') | |
7621 | { /* substr */ | |
7622 | return -KEY_substr; | |
7623 | } | |
7624 | ||
7625 | goto unknown; | |
7626 | ||
7627 | case 'y': | |
7628 | if (name[2] == 's' && | |
7629 | name[3] == 't' && | |
7630 | name[4] == 'e' && | |
7631 | name[5] == 'm') | |
7632 | { /* system */ | |
7633 | return -KEY_system; | |
7634 | } | |
7635 | ||
7636 | goto unknown; | |
7637 | ||
7638 | default: | |
7639 | goto unknown; | |
7640 | } | |
7641 | ||
7642 | case 'u': | |
7643 | if (name[1] == 'n') | |
7644 | { | |
7645 | switch (name[2]) | |
7646 | { | |
7647 | case 'l': | |
7648 | switch (name[3]) | |
7649 | { | |
7650 | case 'e': | |
7651 | if (name[4] == 's' && | |
7652 | name[5] == 's') | |
7653 | { /* unless */ | |
7654 | return KEY_unless; | |
7655 | } | |
7656 | ||
7657 | goto unknown; | |
7658 | ||
7659 | case 'i': | |
7660 | if (name[4] == 'n' && | |
7661 | name[5] == 'k') | |
7662 | { /* unlink */ | |
7663 | return -KEY_unlink; | |
7664 | } | |
7665 | ||
7666 | goto unknown; | |
7667 | ||
7668 | default: | |
7669 | goto unknown; | |
7670 | } | |
7671 | ||
7672 | case 'p': | |
7673 | if (name[3] == 'a' && | |
7674 | name[4] == 'c' && | |
7675 | name[5] == 'k') | |
7676 | { /* unpack */ | |
7677 | return -KEY_unpack; | |
7678 | } | |
7679 | ||
7680 | goto unknown; | |
7681 | ||
7682 | default: | |
7683 | goto unknown; | |
7684 | } | |
7685 | } | |
7686 | ||
7687 | goto unknown; | |
7688 | ||
7689 | case 'v': | |
7690 | if (name[1] == 'a' && | |
7691 | name[2] == 'l' && | |
7692 | name[3] == 'u' && | |
7693 | name[4] == 'e' && | |
7694 | name[5] == 's') | |
7695 | { /* values */ | |
7696 | return -KEY_values; | |
7697 | } | |
7698 | ||
7699 | goto unknown; | |
7700 | ||
7701 | default: | |
7702 | goto unknown; | |
7703 | } | |
7704 | ||
7705 | case 7: /* 28 tokens of length 7 */ | |
7706 | switch (name[0]) | |
7707 | { | |
7708 | case 'D': | |
7709 | if (name[1] == 'E' && | |
7710 | name[2] == 'S' && | |
7711 | name[3] == 'T' && | |
7712 | name[4] == 'R' && | |
7713 | name[5] == 'O' && | |
7714 | name[6] == 'Y') | |
7715 | { /* DESTROY */ | |
7716 | return KEY_DESTROY; | |
7717 | } | |
7718 | ||
7719 | goto unknown; | |
7720 | ||
7721 | case '_': | |
7722 | if (name[1] == '_' && | |
7723 | name[2] == 'E' && | |
7724 | name[3] == 'N' && | |
7725 | name[4] == 'D' && | |
7726 | name[5] == '_' && | |
7727 | name[6] == '_') | |
7728 | { /* __END__ */ | |
7729 | return KEY___END__; | |
7730 | } | |
7731 | ||
7732 | goto unknown; | |
7733 | ||
7734 | case 'b': | |
7735 | if (name[1] == 'i' && | |
7736 | name[2] == 'n' && | |
7737 | name[3] == 'm' && | |
7738 | name[4] == 'o' && | |
7739 | name[5] == 'd' && | |
7740 | name[6] == 'e') | |
7741 | { /* binmode */ | |
7742 | return -KEY_binmode; | |
7743 | } | |
7744 | ||
7745 | goto unknown; | |
7746 | ||
7747 | case 'c': | |
7748 | if (name[1] == 'o' && | |
7749 | name[2] == 'n' && | |
7750 | name[3] == 'n' && | |
7751 | name[4] == 'e' && | |
7752 | name[5] == 'c' && | |
7753 | name[6] == 't') | |
7754 | { /* connect */ | |
7755 | return -KEY_connect; | |
7756 | } | |
7757 | ||
7758 | goto unknown; | |
7759 | ||
7760 | case 'd': | |
7761 | switch (name[1]) | |
7762 | { | |
7763 | case 'b': | |
7764 | if (name[2] == 'm' && | |
7765 | name[3] == 'o' && | |
7766 | name[4] == 'p' && | |
7767 | name[5] == 'e' && | |
7768 | name[6] == 'n') | |
7769 | { /* dbmopen */ | |
7770 | return -KEY_dbmopen; | |
7771 | } | |
7772 | ||
7773 | goto unknown; | |
7774 | ||
7775 | case 'e': | |
7776 | if (name[2] == 'f' && | |
7777 | name[3] == 'i' && | |
7778 | name[4] == 'n' && | |
7779 | name[5] == 'e' && | |
7780 | name[6] == 'd') | |
7781 | { /* defined */ | |
7782 | return KEY_defined; | |
7783 | } | |
7784 | ||
7785 | goto unknown; | |
7786 | ||
7787 | default: | |
7788 | goto unknown; | |
7789 | } | |
7790 | ||
7791 | case 'f': | |
7792 | if (name[1] == 'o' && | |
7793 | name[2] == 'r' && | |
7794 | name[3] == 'e' && | |
7795 | name[4] == 'a' && | |
7796 | name[5] == 'c' && | |
7797 | name[6] == 'h') | |
7798 | { /* foreach */ | |
7799 | return KEY_foreach; | |
7800 | } | |
7801 | ||
7802 | goto unknown; | |
7803 | ||
7804 | case 'g': | |
7805 | if (name[1] == 'e' && | |
7806 | name[2] == 't' && | |
7807 | name[3] == 'p') | |
7808 | { | |
7809 | switch (name[4]) | |
7810 | { | |
7811 | case 'g': | |
7812 | if (name[5] == 'r' && | |
7813 | name[6] == 'p') | |
7814 | { /* getpgrp */ | |
7815 | return -KEY_getpgrp; | |
7816 | } | |
7817 | ||
7818 | goto unknown; | |
7819 | ||
7820 | case 'p': | |
7821 | if (name[5] == 'i' && | |
7822 | name[6] == 'd') | |
7823 | { /* getppid */ | |
7824 | return -KEY_getppid; | |
7825 | } | |
7826 | ||
7827 | goto unknown; | |
7828 | ||
7829 | default: | |
7830 | goto unknown; | |
7831 | } | |
7832 | } | |
7833 | ||
7834 | goto unknown; | |
7835 | ||
7836 | case 'l': | |
7837 | if (name[1] == 'c' && | |
7838 | name[2] == 'f' && | |
7839 | name[3] == 'i' && | |
7840 | name[4] == 'r' && | |
7841 | name[5] == 's' && | |
7842 | name[6] == 't') | |
7843 | { /* lcfirst */ | |
7844 | return -KEY_lcfirst; | |
7845 | } | |
7846 | ||
7847 | goto unknown; | |
7848 | ||
7849 | case 'o': | |
7850 | if (name[1] == 'p' && | |
7851 | name[2] == 'e' && | |
7852 | name[3] == 'n' && | |
7853 | name[4] == 'd' && | |
7854 | name[5] == 'i' && | |
7855 | name[6] == 'r') | |
7856 | { /* opendir */ | |
7857 | return -KEY_opendir; | |
7858 | } | |
7859 | ||
7860 | goto unknown; | |
7861 | ||
7862 | case 'p': | |
7863 | if (name[1] == 'a' && | |
7864 | name[2] == 'c' && | |
7865 | name[3] == 'k' && | |
7866 | name[4] == 'a' && | |
7867 | name[5] == 'g' && | |
7868 | name[6] == 'e') | |
7869 | { /* package */ | |
7870 | return KEY_package; | |
7871 | } | |
7872 | ||
7873 | goto unknown; | |
7874 | ||
7875 | case 'r': | |
7876 | if (name[1] == 'e') | |
7877 | { | |
7878 | switch (name[2]) | |
7879 | { | |
7880 | case 'a': | |
7881 | if (name[3] == 'd' && | |
7882 | name[4] == 'd' && | |
7883 | name[5] == 'i' && | |
7884 | name[6] == 'r') | |
7885 | { /* readdir */ | |
7886 | return -KEY_readdir; | |
7887 | } | |
7888 | ||
7889 | goto unknown; | |
7890 | ||
7891 | case 'q': | |
7892 | if (name[3] == 'u' && | |
7893 | name[4] == 'i' && | |
7894 | name[5] == 'r' && | |
7895 | name[6] == 'e') | |
7896 | { /* require */ | |
7897 | return KEY_require; | |
7898 | } | |
7899 | ||
7900 | goto unknown; | |
7901 | ||
7902 | case 'v': | |
7903 | if (name[3] == 'e' && | |
7904 | name[4] == 'r' && | |
7905 | name[5] == 's' && | |
7906 | name[6] == 'e') | |
7907 | { /* reverse */ | |
7908 | return -KEY_reverse; | |
7909 | } | |
7910 | ||
7911 | goto unknown; | |
7912 | ||
7913 | default: | |
7914 | goto unknown; | |
7915 | } | |
7916 | } | |
7917 | ||
7918 | goto unknown; | |
7919 | ||
7920 | case 's': | |
7921 | switch (name[1]) | |
7922 | { | |
7923 | case 'e': | |
7924 | switch (name[2]) | |
7925 | { | |
7926 | case 'e': | |
7927 | if (name[3] == 'k' && | |
7928 | name[4] == 'd' && | |
7929 | name[5] == 'i' && | |
7930 | name[6] == 'r') | |
7931 | { /* seekdir */ | |
7932 | return -KEY_seekdir; | |
7933 | } | |
7934 | ||
7935 | goto unknown; | |
7936 | ||
7937 | case 't': | |
7938 | if (name[3] == 'p' && | |
7939 | name[4] == 'g' && | |
7940 | name[5] == 'r' && | |
7941 | name[6] == 'p') | |
7942 | { /* setpgrp */ | |
7943 | return -KEY_setpgrp; | |
7944 | } | |
7945 | ||
7946 | goto unknown; | |
7947 | ||
7948 | default: | |
7949 | goto unknown; | |
7950 | } | |
7951 | ||
7952 | case 'h': | |
7953 | if (name[2] == 'm' && | |
7954 | name[3] == 'r' && | |
7955 | name[4] == 'e' && | |
7956 | name[5] == 'a' && | |
7957 | name[6] == 'd') | |
7958 | { /* shmread */ | |
7959 | return -KEY_shmread; | |
7960 | } | |
7961 | ||
7962 | goto unknown; | |
7963 | ||
7964 | case 'p': | |
7965 | if (name[2] == 'r' && | |
7966 | name[3] == 'i' && | |
7967 | name[4] == 'n' && | |
7968 | name[5] == 't' && | |
7969 | name[6] == 'f') | |
7970 | { /* sprintf */ | |
7971 | return -KEY_sprintf; | |
7972 | } | |
7973 | ||
7974 | goto unknown; | |
7975 | ||
7976 | case 'y': | |
7977 | switch (name[2]) | |
7978 | { | |
7979 | case 'm': | |
7980 | if (name[3] == 'l' && | |
7981 | name[4] == 'i' && | |
7982 | name[5] == 'n' && | |
7983 | name[6] == 'k') | |
7984 | { /* symlink */ | |
7985 | return -KEY_symlink; | |
7986 | } | |
7987 | ||
7988 | goto unknown; | |
7989 | ||
7990 | case 's': | |
7991 | switch (name[3]) | |
7992 | { | |
7993 | case 'c': | |
7994 | if (name[4] == 'a' && | |
7995 | name[5] == 'l' && | |
7996 | name[6] == 'l') | |
7997 | { /* syscall */ | |
7998 | return -KEY_syscall; | |
7999 | } | |
8000 | ||
8001 | goto unknown; | |
8002 | ||
8003 | case 'o': | |
8004 | if (name[4] == 'p' && | |
8005 | name[5] == 'e' && | |
8006 | name[6] == 'n') | |
8007 | { /* sysopen */ | |
8008 | return -KEY_sysopen; | |
8009 | } | |
8010 | ||
8011 | goto unknown; | |
8012 | ||
8013 | case 'r': | |
8014 | if (name[4] == 'e' && | |
8015 | name[5] == 'a' && | |
8016 | name[6] == 'd') | |
8017 | { /* sysread */ | |
8018 | return -KEY_sysread; | |
8019 | } | |
8020 | ||
8021 | goto unknown; | |
8022 | ||
8023 | case 's': | |
8024 | if (name[4] == 'e' && | |
8025 | name[5] == 'e' && | |
8026 | name[6] == 'k') | |
8027 | { /* sysseek */ | |
8028 | return -KEY_sysseek; | |
8029 | } | |
8030 | ||
8031 | goto unknown; | |
8032 | ||
8033 | default: | |
8034 | goto unknown; | |
8035 | } | |
8036 | ||
8037 | default: | |
8038 | goto unknown; | |
8039 | } | |
8040 | ||
8041 | default: | |
8042 | goto unknown; | |
8043 | } | |
8044 | ||
8045 | case 't': | |
8046 | if (name[1] == 'e' && | |
8047 | name[2] == 'l' && | |
8048 | name[3] == 'l' && | |
8049 | name[4] == 'd' && | |
8050 | name[5] == 'i' && | |
8051 | name[6] == 'r') | |
8052 | { /* telldir */ | |
8053 | return -KEY_telldir; | |
8054 | } | |
8055 | ||
8056 | goto unknown; | |
8057 | ||
8058 | case 'u': | |
8059 | switch (name[1]) | |
8060 | { | |
8061 | case 'c': | |
8062 | if (name[2] == 'f' && | |
8063 | name[3] == 'i' && | |
8064 | name[4] == 'r' && | |
8065 | name[5] == 's' && | |
8066 | name[6] == 't') | |
8067 | { /* ucfirst */ | |
8068 | return -KEY_ucfirst; | |
8069 | } | |
8070 | ||
8071 | goto unknown; | |
8072 | ||
8073 | case 'n': | |
8074 | if (name[2] == 's' && | |
8075 | name[3] == 'h' && | |
8076 | name[4] == 'i' && | |
8077 | name[5] == 'f' && | |
8078 | name[6] == 't') | |
8079 | { /* unshift */ | |
8080 | return -KEY_unshift; | |
8081 | } | |
8082 | ||
8083 | goto unknown; | |
8084 | ||
8085 | default: | |
8086 | goto unknown; | |
8087 | } | |
8088 | ||
8089 | case 'w': | |
8090 | if (name[1] == 'a' && | |
8091 | name[2] == 'i' && | |
8092 | name[3] == 't' && | |
8093 | name[4] == 'p' && | |
8094 | name[5] == 'i' && | |
8095 | name[6] == 'd') | |
8096 | { /* waitpid */ | |
8097 | return -KEY_waitpid; | |
8098 | } | |
8099 | ||
8100 | goto unknown; | |
8101 | ||
8102 | default: | |
8103 | goto unknown; | |
8104 | } | |
8105 | ||
8106 | case 8: /* 26 tokens of length 8 */ | |
8107 | switch (name[0]) | |
8108 | { | |
8109 | case 'A': | |
8110 | if (name[1] == 'U' && | |
8111 | name[2] == 'T' && | |
8112 | name[3] == 'O' && | |
8113 | name[4] == 'L' && | |
8114 | name[5] == 'O' && | |
8115 | name[6] == 'A' && | |
8116 | name[7] == 'D') | |
8117 | { /* AUTOLOAD */ | |
8118 | return KEY_AUTOLOAD; | |
8119 | } | |
8120 | ||
8121 | goto unknown; | |
8122 | ||
8123 | case '_': | |
8124 | if (name[1] == '_') | |
8125 | { | |
8126 | switch (name[2]) | |
8127 | { | |
8128 | case 'D': | |
8129 | if (name[3] == 'A' && | |
8130 | name[4] == 'T' && | |
8131 | name[5] == 'A' && | |
8132 | name[6] == '_' && | |
8133 | name[7] == '_') | |
8134 | { /* __DATA__ */ | |
8135 | return KEY___DATA__; | |
8136 | } | |
8137 | ||
8138 | goto unknown; | |
8139 | ||
8140 | case 'F': | |
8141 | if (name[3] == 'I' && | |
8142 | name[4] == 'L' && | |
8143 | name[5] == 'E' && | |
8144 | name[6] == '_' && | |
8145 | name[7] == '_') | |
8146 | { /* __FILE__ */ | |
8147 | return -KEY___FILE__; | |
8148 | } | |
8149 | ||
8150 | goto unknown; | |
8151 | ||
8152 | case 'L': | |
8153 | if (name[3] == 'I' && | |
8154 | name[4] == 'N' && | |
8155 | name[5] == 'E' && | |
8156 | name[6] == '_' && | |
8157 | name[7] == '_') | |
8158 | { /* __LINE__ */ | |
8159 | return -KEY___LINE__; | |
8160 | } | |
8161 | ||
8162 | goto unknown; | |
8163 | ||
8164 | default: | |
8165 | goto unknown; | |
8166 | } | |
8167 | } | |
8168 | ||
8169 | goto unknown; | |
8170 | ||
8171 | case 'c': | |
8172 | switch (name[1]) | |
8173 | { | |
8174 | case 'l': | |
8175 | if (name[2] == 'o' && | |
8176 | name[3] == 's' && | |
8177 | name[4] == 'e' && | |
8178 | name[5] == 'd' && | |
8179 | name[6] == 'i' && | |
8180 | name[7] == 'r') | |
8181 | { /* closedir */ | |
8182 | return -KEY_closedir; | |
8183 | } | |
8184 | ||
8185 | goto unknown; | |
8186 | ||
8187 | case 'o': | |
8188 | if (name[2] == 'n' && | |
8189 | name[3] == 't' && | |
8190 | name[4] == 'i' && | |
8191 | name[5] == 'n' && | |
8192 | name[6] == 'u' && | |
8193 | name[7] == 'e') | |
8194 | { /* continue */ | |
8195 | return -KEY_continue; | |
8196 | } | |
8197 | ||
8198 | goto unknown; | |
8199 | ||
8200 | default: | |
8201 | goto unknown; | |
8202 | } | |
8203 | ||
8204 | case 'd': | |
8205 | if (name[1] == 'b' && | |
8206 | name[2] == 'm' && | |
8207 | name[3] == 'c' && | |
8208 | name[4] == 'l' && | |
8209 | name[5] == 'o' && | |
8210 | name[6] == 's' && | |
8211 | name[7] == 'e') | |
8212 | { /* dbmclose */ | |
8213 | return -KEY_dbmclose; | |
8214 | } | |
8215 | ||
8216 | goto unknown; | |
8217 | ||
8218 | case 'e': | |
8219 | if (name[1] == 'n' && | |
8220 | name[2] == 'd') | |
8221 | { | |
8222 | switch (name[3]) | |
8223 | { | |
8224 | case 'g': | |
8225 | if (name[4] == 'r' && | |
8226 | name[5] == 'e' && | |
8227 | name[6] == 'n' && | |
8228 | name[7] == 't') | |
8229 | { /* endgrent */ | |
8230 | return -KEY_endgrent; | |
8231 | } | |
8232 | ||
8233 | goto unknown; | |
8234 | ||
8235 | case 'p': | |
8236 | if (name[4] == 'w' && | |
8237 | name[5] == 'e' && | |
8238 | name[6] == 'n' && | |
8239 | name[7] == 't') | |
8240 | { /* endpwent */ | |
8241 | return -KEY_endpwent; | |
8242 | } | |
8243 | ||
8244 | goto unknown; | |
8245 | ||
8246 | default: | |
8247 | goto unknown; | |
8248 | } | |
8249 | } | |
8250 | ||
8251 | goto unknown; | |
8252 | ||
8253 | case 'f': | |
8254 | if (name[1] == 'o' && | |
8255 | name[2] == 'r' && | |
8256 | name[3] == 'm' && | |
8257 | name[4] == 'l' && | |
8258 | name[5] == 'i' && | |
8259 | name[6] == 'n' && | |
8260 | name[7] == 'e') | |
8261 | { /* formline */ | |
8262 | return -KEY_formline; | |
8263 | } | |
8264 | ||
8265 | goto unknown; | |
8266 | ||
8267 | case 'g': | |
8268 | if (name[1] == 'e' && | |
8269 | name[2] == 't') | |
8270 | { | |
8271 | switch (name[3]) | |
8272 | { | |
8273 | case 'g': | |
8274 | if (name[4] == 'r') | |
8275 | { | |
8276 | switch (name[5]) | |
8277 | { | |
8278 | case 'e': | |
8279 | if (name[6] == 'n' && | |
8280 | name[7] == 't') | |
8281 | { /* getgrent */ | |
8282 | return -KEY_getgrent; | |
8283 | } | |
8284 | ||
8285 | goto unknown; | |
8286 | ||
8287 | case 'g': | |
8288 | if (name[6] == 'i' && | |
8289 | name[7] == 'd') | |
8290 | { /* getgrgid */ | |
8291 | return -KEY_getgrgid; | |
8292 | } | |
8293 | ||
8294 | goto unknown; | |
8295 | ||
8296 | case 'n': | |
8297 | if (name[6] == 'a' && | |
8298 | name[7] == 'm') | |
8299 | { /* getgrnam */ | |
8300 | return -KEY_getgrnam; | |
8301 | } | |
8302 | ||
8303 | goto unknown; | |
8304 | ||
8305 | default: | |
8306 | goto unknown; | |
8307 | } | |
8308 | } | |
8309 | ||
8310 | goto unknown; | |
8311 | ||
8312 | case 'l': | |
8313 | if (name[4] == 'o' && | |
8314 | name[5] == 'g' && | |
8315 | name[6] == 'i' && | |
8316 | name[7] == 'n') | |
8317 | { /* getlogin */ | |
8318 | return -KEY_getlogin; | |
8319 | } | |
8320 | ||
8321 | goto unknown; | |
8322 | ||
8323 | case 'p': | |
8324 | if (name[4] == 'w') | |
8325 | { | |
8326 | switch (name[5]) | |
8327 | { | |
8328 | case 'e': | |
8329 | if (name[6] == 'n' && | |
8330 | name[7] == 't') | |
8331 | { /* getpwent */ | |
8332 | return -KEY_getpwent; | |
8333 | } | |
8334 | ||
8335 | goto unknown; | |
8336 | ||
8337 | case 'n': | |
8338 | if (name[6] == 'a' && | |
8339 | name[7] == 'm') | |
8340 | { /* getpwnam */ | |
8341 | return -KEY_getpwnam; | |
8342 | } | |
8343 | ||
8344 | goto unknown; | |
8345 | ||
8346 | case 'u': | |
8347 | if (name[6] == 'i' && | |
8348 | name[7] == 'd') | |
8349 | { /* getpwuid */ | |
8350 | return -KEY_getpwuid; | |
8351 | } | |
8352 | ||
8353 | goto unknown; | |
8354 | ||
8355 | default: | |
8356 | goto unknown; | |
8357 | } | |
8358 | } | |
8359 | ||
8360 | goto unknown; | |
8361 | ||
8362 | default: | |
8363 | goto unknown; | |
8364 | } | |
8365 | } | |
8366 | ||
8367 | goto unknown; | |
8368 | ||
8369 | case 'r': | |
8370 | if (name[1] == 'e' && | |
8371 | name[2] == 'a' && | |
8372 | name[3] == 'd') | |
8373 | { | |
8374 | switch (name[4]) | |
8375 | { | |
8376 | case 'l': | |
8377 | if (name[5] == 'i' && | |
8378 | name[6] == 'n') | |
8379 | { | |
8380 | switch (name[7]) | |
8381 | { | |
8382 | case 'e': | |
8383 | { /* readline */ | |
8384 | return -KEY_readline; | |
8385 | } | |
8386 | ||
64446b2f NC |
8387 | case 'k': |
8388 | { /* readlink */ | |
8389 | return -KEY_readlink; | |
8390 | } | |
8391 | ||
64446b2f NC |
8392 | default: |
8393 | goto unknown; | |
8394 | } | |
8395 | } | |
8396 | ||
8397 | goto unknown; | |
8398 | ||
8399 | case 'p': | |
8400 | if (name[5] == 'i' && | |
8401 | name[6] == 'p' && | |
8402 | name[7] == 'e') | |
8403 | { /* readpipe */ | |
8404 | return -KEY_readpipe; | |
8405 | } | |
8406 | ||
8407 | goto unknown; | |
8408 | ||
8409 | default: | |
8410 | goto unknown; | |
8411 | } | |
8412 | } | |
8413 | ||
8414 | goto unknown; | |
8415 | ||
8416 | case 's': | |
8417 | switch (name[1]) | |
8418 | { | |
8419 | case 'e': | |
8420 | if (name[2] == 't') | |
8421 | { | |
8422 | switch (name[3]) | |
8423 | { | |
8424 | case 'g': | |
8425 | if (name[4] == 'r' && | |
8426 | name[5] == 'e' && | |
8427 | name[6] == 'n' && | |
8428 | name[7] == 't') | |
8429 | { /* setgrent */ | |
8430 | return -KEY_setgrent; | |
8431 | } | |
8432 | ||
8433 | goto unknown; | |
8434 | ||
8435 | case 'p': | |
8436 | if (name[4] == 'w' && | |
8437 | name[5] == 'e' && | |
8438 | name[6] == 'n' && | |
8439 | name[7] == 't') | |
8440 | { /* setpwent */ | |
8441 | return -KEY_setpwent; | |
8442 | } | |
8443 | ||
8444 | goto unknown; | |
8445 | ||
8446 | default: | |
8447 | goto unknown; | |
8448 | } | |
8449 | } | |
8450 | ||
8451 | goto unknown; | |
8452 | ||
8453 | case 'h': | |
8454 | switch (name[2]) | |
8455 | { | |
8456 | case 'm': | |
8457 | if (name[3] == 'w' && | |
8458 | name[4] == 'r' && | |
8459 | name[5] == 'i' && | |
8460 | name[6] == 't' && | |
8461 | name[7] == 'e') | |
8462 | { /* shmwrite */ | |
8463 | return -KEY_shmwrite; | |
8464 | } | |
8465 | ||
8466 | goto unknown; | |
8467 | ||
8468 | case 'u': | |
8469 | if (name[3] == 't' && | |
8470 | name[4] == 'd' && | |
8471 | name[5] == 'o' && | |
8472 | name[6] == 'w' && | |
8473 | name[7] == 'n') | |
8474 | { /* shutdown */ | |
8475 | return -KEY_shutdown; | |
8476 | } | |
8477 | ||
8478 | goto unknown; | |
8479 | ||
8480 | default: | |
8481 | goto unknown; | |
8482 | } | |
8483 | ||
8484 | case 'y': | |
8485 | if (name[2] == 's' && | |
8486 | name[3] == 'w' && | |
8487 | name[4] == 'r' && | |
8488 | name[5] == 'i' && | |
8489 | name[6] == 't' && | |
8490 | name[7] == 'e') | |
8491 | { /* syswrite */ | |
8492 | return -KEY_syswrite; | |
8493 | } | |
8494 | ||
8495 | goto unknown; | |
8496 | ||
8497 | default: | |
8498 | goto unknown; | |
8499 | } | |
8500 | ||
8501 | case 't': | |
8502 | if (name[1] == 'r' && | |
8503 | name[2] == 'u' && | |
8504 | name[3] == 'n' && | |
8505 | name[4] == 'c' && | |
8506 | name[5] == 'a' && | |
8507 | name[6] == 't' && | |
8508 | name[7] == 'e') | |
8509 | { /* truncate */ | |
8510 | return -KEY_truncate; | |
8511 | } | |
8512 | ||
8513 | goto unknown; | |
8514 | ||
8515 | default: | |
8516 | goto unknown; | |
8517 | } | |
8518 | ||
8519 | case 9: /* 8 tokens of length 9 */ | |
8520 | switch (name[0]) | |
8521 | { | |
8522 | case 'e': | |
8523 | if (name[1] == 'n' && | |
8524 | name[2] == 'd' && | |
8525 | name[3] == 'n' && | |
8526 | name[4] == 'e' && | |
8527 | name[5] == 't' && | |
8528 | name[6] == 'e' && | |
8529 | name[7] == 'n' && | |
8530 | name[8] == 't') | |
8531 | { /* endnetent */ | |
8532 | return -KEY_endnetent; | |
8533 | } | |
8534 | ||
8535 | goto unknown; | |
8536 | ||
8537 | case 'g': | |
8538 | if (name[1] == 'e' && | |
8539 | name[2] == 't' && | |
8540 | name[3] == 'n' && | |
8541 | name[4] == 'e' && | |
8542 | name[5] == 't' && | |
8543 | name[6] == 'e' && | |
8544 | name[7] == 'n' && | |
8545 | name[8] == 't') | |
8546 | { /* getnetent */ | |
8547 | return -KEY_getnetent; | |
8548 | } | |
8549 | ||
8550 | goto unknown; | |
8551 | ||
8552 | case 'l': | |
8553 | if (name[1] == 'o' && | |
8554 | name[2] == 'c' && | |
8555 | name[3] == 'a' && | |
8556 | name[4] == 'l' && | |
8557 | name[5] == 't' && | |
8558 | name[6] == 'i' && | |
8559 | name[7] == 'm' && | |
8560 | name[8] == 'e') | |
8561 | { /* localtime */ | |
8562 | return -KEY_localtime; | |
8563 | } | |
8564 | ||
8565 | goto unknown; | |
8566 | ||
8567 | case 'p': | |
8568 | if (name[1] == 'r' && | |
8569 | name[2] == 'o' && | |
8570 | name[3] == 't' && | |
8571 | name[4] == 'o' && | |
8572 | name[5] == 't' && | |
8573 | name[6] == 'y' && | |
8574 | name[7] == 'p' && | |
8575 | name[8] == 'e') | |
8576 | { /* prototype */ | |
8577 | return KEY_prototype; | |
8578 | } | |
8579 | ||
8580 | goto unknown; | |
8581 | ||
8582 | case 'q': | |
8583 | if (name[1] == 'u' && | |
8584 | name[2] == 'o' && | |
8585 | name[3] == 't' && | |
8586 | name[4] == 'e' && | |
8587 | name[5] == 'm' && | |
8588 | name[6] == 'e' && | |
8589 | name[7] == 't' && | |
8590 | name[8] == 'a') | |
8591 | { /* quotemeta */ | |
8592 | return -KEY_quotemeta; | |
8593 | } | |
8594 | ||
8595 | goto unknown; | |
8596 | ||
8597 | case 'r': | |
8598 | if (name[1] == 'e' && | |
8599 | name[2] == 'w' && | |
8600 | name[3] == 'i' && | |
8601 | name[4] == 'n' && | |
8602 | name[5] == 'd' && | |
8603 | name[6] == 'd' && | |
8604 | name[7] == 'i' && | |
8605 | name[8] == 'r') | |
8606 | { /* rewinddir */ | |
8607 | return -KEY_rewinddir; | |
8608 | } | |
8609 | ||
8610 | goto unknown; | |
8611 | ||
8612 | case 's': | |
8613 | if (name[1] == 'e' && | |
8614 | name[2] == 't' && | |
8615 | name[3] == 'n' && | |
8616 | name[4] == 'e' && | |
8617 | name[5] == 't' && | |
8618 | name[6] == 'e' && | |
8619 | name[7] == 'n' && | |
8620 | name[8] == 't') | |
8621 | { /* setnetent */ | |
8622 | return -KEY_setnetent; | |
8623 | } | |
8624 | ||
8625 | goto unknown; | |
8626 | ||
8627 | case 'w': | |
8628 | if (name[1] == 'a' && | |
8629 | name[2] == 'n' && | |
8630 | name[3] == 't' && | |
8631 | name[4] == 'a' && | |
8632 | name[5] == 'r' && | |
8633 | name[6] == 'r' && | |
8634 | name[7] == 'a' && | |
8635 | name[8] == 'y') | |
8636 | { /* wantarray */ | |
8637 | return -KEY_wantarray; | |
8638 | } | |
8639 | ||
8640 | goto unknown; | |
8641 | ||
8642 | default: | |
8643 | goto unknown; | |
8644 | } | |
8645 | ||
8646 | case 10: /* 9 tokens of length 10 */ | |
8647 | switch (name[0]) | |
8648 | { | |
8649 | case 'e': | |
8650 | if (name[1] == 'n' && | |
8651 | name[2] == 'd') | |
8652 | { | |
8653 | switch (name[3]) | |
8654 | { | |
8655 | case 'h': | |
8656 | if (name[4] == 'o' && | |
8657 | name[5] == 's' && | |
8658 | name[6] == 't' && | |
8659 | name[7] == 'e' && | |
8660 | name[8] == 'n' && | |
8661 | name[9] == 't') | |
8662 | { /* endhostent */ | |
8663 | return -KEY_endhostent; | |
8664 | } | |
8665 | ||
8666 | goto unknown; | |
8667 | ||
8668 | case 's': | |
8669 | if (name[4] == 'e' && | |
8670 | name[5] == 'r' && | |
8671 | name[6] == 'v' && | |
8672 | name[7] == 'e' && | |
8673 | name[8] == 'n' && | |
8674 | name[9] == 't') | |
8675 | { /* endservent */ | |
8676 | return -KEY_endservent; | |
8677 | } | |
8678 | ||
8679 | goto unknown; | |
8680 | ||
8681 | default: | |
8682 | goto unknown; | |
8683 | } | |
8684 | } | |
8685 | ||
8686 | goto unknown; | |
8687 | ||
8688 | case 'g': | |
8689 | if (name[1] == 'e' && | |
8690 | name[2] == 't') | |
8691 | { | |
8692 | switch (name[3]) | |
8693 | { | |
8694 | case 'h': | |
8695 | if (name[4] == 'o' && | |
8696 | name[5] == 's' && | |
8697 | name[6] == 't' && | |
8698 | name[7] == 'e' && | |
8699 | name[8] == 'n' && | |
8700 | name[9] == 't') | |
8701 | { /* gethostent */ | |
8702 | return -KEY_gethostent; | |
8703 | } | |
8704 | ||
8705 | goto unknown; | |
8706 | ||
8707 | case 's': | |
8708 | switch (name[4]) | |
8709 | { | |
8710 | case 'e': | |
8711 | if (name[5] == 'r' && | |
8712 | name[6] == 'v' && | |
8713 | name[7] == 'e' && | |
8714 | name[8] == 'n' && | |
8715 | name[9] == 't') | |
8716 | { /* getservent */ | |
8717 | return -KEY_getservent; | |
8718 | } | |
8719 | ||
8720 | goto unknown; | |
8721 | ||
8722 | case 'o': | |
8723 | if (name[5] == 'c' && | |
8724 | name[6] == 'k' && | |
8725 | name[7] == 'o' && | |
8726 | name[8] == 'p' && | |
8727 | name[9] == 't') | |
8728 | { /* getsockopt */ | |
8729 | return -KEY_getsockopt; | |
8730 | } | |
8731 | ||
8732 | goto unknown; | |
8733 | ||
8734 | default: | |
8735 | goto unknown; | |
8736 | } | |
8737 | ||
8738 | default: | |
8739 | goto unknown; | |
8740 | } | |
8741 | } | |
8742 | ||
8743 | goto unknown; | |
8744 | ||
8745 | case 's': | |
8746 | switch (name[1]) | |
8747 | { | |
8748 | case 'e': | |
8749 | if (name[2] == 't') | |
8750 | { | |
8751 | switch (name[3]) | |
8752 | { | |
8753 | case 'h': | |
8754 | if (name[4] == 'o' && | |
8755 | name[5] == 's' && | |
8756 | name[6] == 't' && | |
8757 | name[7] == 'e' && | |
8758 | name[8] == 'n' && | |
8759 | name[9] == 't') | |
8760 | { /* sethostent */ | |
8761 | return -KEY_sethostent; | |
8762 | } | |
8763 | ||
8764 | goto unknown; | |
8765 | ||
8766 | case 's': | |
8767 | switch (name[4]) | |
8768 | { | |
8769 | case 'e': | |
8770 | if (name[5] == 'r' && | |
8771 | name[6] == 'v' && | |
8772 | name[7] == 'e' && | |
8773 | name[8] == 'n' && | |
8774 | name[9] == 't') | |
8775 | { /* setservent */ | |
8776 | return -KEY_setservent; | |
8777 | } | |
8778 | ||
8779 | goto unknown; | |
8780 | ||
8781 | case 'o': | |
8782 | if (name[5] == 'c' && | |
8783 | name[6] == 'k' && | |
8784 | name[7] == 'o' && | |
8785 | name[8] == 'p' && | |
8786 | name[9] == 't') | |
8787 | { /* setsockopt */ | |
8788 | return -KEY_setsockopt; | |
8789 | } | |
8790 | ||
8791 | goto unknown; | |
8792 | ||
8793 | default: | |
8794 | goto unknown; | |
8795 | } | |
8796 | ||
8797 | default: | |
8798 | goto unknown; | |
8799 | } | |
8800 | } | |
8801 | ||
8802 | goto unknown; | |
8803 | ||
8804 | case 'o': | |
8805 | if (name[2] == 'c' && | |
8806 | name[3] == 'k' && | |
8807 | name[4] == 'e' && | |
8808 | name[5] == 't' && | |
8809 | name[6] == 'p' && | |
8810 | name[7] == 'a' && | |
8811 | name[8] == 'i' && | |
8812 | name[9] == 'r') | |
8813 | { /* socketpair */ | |
8814 | return -KEY_socketpair; | |
8815 | } | |
8816 | ||
8817 | goto unknown; | |
8818 | ||
8819 | default: | |
8820 | goto unknown; | |
8821 | } | |
8822 | ||
8823 | default: | |
8824 | goto unknown; | |
8825 | } | |
8826 | ||
8827 | case 11: /* 8 tokens of length 11 */ | |
8828 | switch (name[0]) | |
8829 | { | |
8830 | case '_': | |
8831 | if (name[1] == '_' && | |
8832 | name[2] == 'P' && | |
8833 | name[3] == 'A' && | |
8834 | name[4] == 'C' && | |
8835 | name[5] == 'K' && | |
8836 | name[6] == 'A' && | |
8837 | name[7] == 'G' && | |
8838 | name[8] == 'E' && | |
8839 | name[9] == '_' && | |
8840 | name[10] == '_') | |
8841 | { /* __PACKAGE__ */ | |
8842 | return -KEY___PACKAGE__; | |
8843 | } | |
8844 | ||
8845 | goto unknown; | |
8846 | ||
8847 | case 'e': | |
8848 | if (name[1] == 'n' && | |
8849 | name[2] == 'd' && | |
8850 | name[3] == 'p' && | |
8851 | name[4] == 'r' && | |
8852 | name[5] == 'o' && | |
8853 | name[6] == 't' && | |
8854 | name[7] == 'o' && | |
8855 | name[8] == 'e' && | |
8856 | name[9] == 'n' && | |
8857 | name[10] == 't') | |
8858 | { /* endprotoent */ | |
8859 | return -KEY_endprotoent; | |
8860 | } | |
8861 | ||
8862 | goto unknown; | |
8863 | ||
8864 | case 'g': | |
8865 | if (name[1] == 'e' && | |
8866 | name[2] == 't') | |
8867 | { | |
8868 | switch (name[3]) | |
8869 | { | |
8870 | case 'p': | |
8871 | switch (name[4]) | |
8872 | { | |
8873 | case 'e': | |
8874 | if (name[5] == 'e' && | |
8875 | name[6] == 'r' && | |
8876 | name[7] == 'n' && | |
8877 | name[8] == 'a' && | |
8878 | name[9] == 'm' && | |
8879 | name[10] == 'e') | |
8880 | { /* getpeername */ | |
8881 | return -KEY_getpeername; | |
8882 | } | |
8883 | ||
8884 | goto unknown; | |
8885 | ||
8886 | case 'r': | |
8887 | switch (name[5]) | |
8888 | { | |
8889 | case 'i': | |
8890 | if (name[6] == 'o' && | |
8891 | name[7] == 'r' && | |
8892 | name[8] == 'i' && | |
8893 | name[9] == 't' && | |
8894 | name[10] == 'y') | |
8895 | { /* getpriority */ | |
8896 | return -KEY_getpriority; | |
8897 | } | |
8898 | ||
8899 | goto unknown; | |
8900 | ||
8901 | case 'o': | |
8902 | if (name[6] == 't' && | |
8903 | name[7] == 'o' && | |
8904 | name[8] == 'e' && | |
8905 | name[9] == 'n' && | |
8906 | name[10] == 't') | |
8907 | { /* getprotoent */ | |
8908 | return -KEY_getprotoent; | |
8909 | } | |
8910 | ||
8911 | goto unknown; | |
8912 | ||
8913 | default: | |
8914 | goto unknown; | |
8915 | } | |
8916 | ||
8917 | default: | |
8918 | goto unknown; | |
8919 | } | |
8920 | ||
8921 | case 's': | |
8922 | if (name[4] == 'o' && | |
8923 | name[5] == 'c' && | |
8924 | name[6] == 'k' && | |
8925 | name[7] == 'n' && | |
8926 | name[8] == 'a' && | |
8927 | name[9] == 'm' && | |
8928 | name[10] == 'e') | |
8929 | { /* getsockname */ | |
8930 | return -KEY_getsockname; | |
8931 | } | |
8932 | ||
8933 | goto unknown; | |
8934 | ||
8935 | default: | |
8936 | goto unknown; | |
8937 | } | |
8938 | } | |
8939 | ||
8940 | goto unknown; | |
8941 | ||
8942 | case 's': | |
8943 | if (name[1] == 'e' && | |
8944 | name[2] == 't' && | |
8945 | name[3] == 'p' && | |
8946 | name[4] == 'r') | |
8947 | { | |
8948 | switch (name[5]) | |
8949 | { | |
8950 | case 'i': | |
8951 | if (name[6] == 'o' && | |
8952 | name[7] == 'r' && | |
8953 | name[8] == 'i' && | |
8954 | name[9] == 't' && | |
8955 | name[10] == 'y') | |
8956 | { /* setpriority */ | |
8957 | return -KEY_setpriority; | |
8958 | } | |
8959 | ||
8960 | goto unknown; | |
8961 | ||
8962 | case 'o': | |
8963 | if (name[6] == 't' && | |
8964 | name[7] == 'o' && | |
8965 | name[8] == 'e' && | |
8966 | name[9] == 'n' && | |
8967 | name[10] == 't') | |
8968 | { /* setprotoent */ | |
8969 | return -KEY_setprotoent; | |
8970 | } | |
8971 | ||
8972 | goto unknown; | |
8973 | ||
8974 | default: | |
8975 | goto unknown; | |
8976 | } | |
8977 | } | |
8978 | ||
8979 | goto unknown; | |
8980 | ||
8981 | default: | |
8982 | goto unknown; | |
8983 | } | |
8984 | ||
8985 | case 12: /* 2 tokens of length 12 */ | |
8986 | if (name[0] == 'g' && | |
8987 | name[1] == 'e' && | |
8988 | name[2] == 't' && | |
8989 | name[3] == 'n' && | |
8990 | name[4] == 'e' && | |
8991 | name[5] == 't' && | |
8992 | name[6] == 'b' && | |
8993 | name[7] == 'y') | |
8994 | { | |
8995 | switch (name[8]) | |
8996 | { | |
8997 | case 'a': | |
8998 | if (name[9] == 'd' && | |
8999 | name[10] == 'd' && | |
9000 | name[11] == 'r') | |
9001 | { /* getnetbyaddr */ | |
9002 | return -KEY_getnetbyaddr; | |
9003 | } | |
9004 | ||
9005 | goto unknown; | |
9006 | ||
9007 | case 'n': | |
9008 | if (name[9] == 'a' && | |
9009 | name[10] == 'm' && | |
9010 | name[11] == 'e') | |
9011 | { /* getnetbyname */ | |
9012 | return -KEY_getnetbyname; | |
9013 | } | |
9014 | ||
9015 | goto unknown; | |
9016 | ||
9017 | default: | |
9018 | goto unknown; | |
9019 | } | |
9020 | } | |
9021 | ||
9022 | goto unknown; | |
9023 | ||
9024 | case 13: /* 4 tokens of length 13 */ | |
9025 | if (name[0] == 'g' && | |
9026 | name[1] == 'e' && | |
9027 | name[2] == 't') | |
9028 | { | |
9029 | switch (name[3]) | |
9030 | { | |
9031 | case 'h': | |
9032 | if (name[4] == 'o' && | |
9033 | name[5] == 's' && | |
9034 | name[6] == 't' && | |
9035 | name[7] == 'b' && | |
9036 | name[8] == 'y') | |
9037 | { | |
9038 | switch (name[9]) | |
9039 | { | |
9040 | case 'a': | |
9041 | if (name[10] == 'd' && | |
9042 | name[11] == 'd' && | |
9043 | name[12] == 'r') | |
9044 | { /* gethostbyaddr */ | |
9045 | return -KEY_gethostbyaddr; | |
9046 | } | |
9047 | ||
9048 | goto unknown; | |
9049 | ||
9050 | case 'n': | |
9051 | if (name[10] == 'a' && | |
9052 | name[11] == 'm' && | |
9053 | name[12] == 'e') | |
9054 | { /* gethostbyname */ | |
9055 | return -KEY_gethostbyname; | |
9056 | } | |
9057 | ||
9058 | goto unknown; | |
9059 | ||
9060 | default: | |
9061 | goto unknown; | |
9062 | } | |
9063 | } | |
9064 | ||
9065 | goto unknown; | |
9066 | ||
9067 | case 's': | |
9068 | if (name[4] == 'e' && | |
9069 | name[5] == 'r' && | |
9070 | name[6] == 'v' && | |
9071 | name[7] == 'b' && | |
9072 | name[8] == 'y') | |
9073 | { | |
9074 | switch (name[9]) | |
9075 | { | |
9076 | case 'n': | |
9077 | if (name[10] == 'a' && | |
9078 | name[11] == 'm' && | |
9079 | name[12] == 'e') | |
9080 | { /* getservbyname */ | |
9081 | return -KEY_getservbyname; | |
9082 | } | |
9083 | ||
9084 | goto unknown; | |
9085 | ||
9086 | case 'p': | |
9087 | if (name[10] == 'o' && | |
9088 | name[11] == 'r' && | |
9089 | name[12] == 't') | |
9090 | { /* getservbyport */ | |
9091 | return -KEY_getservbyport; | |
9092 | } | |
9093 | ||
9094 | goto unknown; | |
9095 | ||
9096 | default: | |
9097 | goto unknown; | |
9098 | } | |
9099 | } | |
9100 | ||
9101 | goto unknown; | |
9102 | ||
9103 | default: | |
9104 | goto unknown; | |
9105 | } | |
9106 | } | |
9107 | ||
9108 | goto unknown; | |
9109 | ||
9110 | case 14: /* 1 tokens of length 14 */ | |
9111 | if (name[0] == 'g' && | |
9112 | name[1] == 'e' && | |
9113 | name[2] == 't' && | |
9114 | name[3] == 'p' && | |
9115 | name[4] == 'r' && | |
9116 | name[5] == 'o' && | |
9117 | name[6] == 't' && | |
9118 | name[7] == 'o' && | |
9119 | name[8] == 'b' && | |
9120 | name[9] == 'y' && | |
9121 | name[10] == 'n' && | |
9122 | name[11] == 'a' && | |
9123 | name[12] == 'm' && | |
9124 | name[13] == 'e') | |
9125 | { /* getprotobyname */ | |
9126 | return -KEY_getprotobyname; | |
9127 | } | |
9128 | ||
9129 | goto unknown; | |
9130 | ||
9131 | case 16: /* 1 tokens of length 16 */ | |
9132 | if (name[0] == 'g' && | |
9133 | name[1] == 'e' && | |
9134 | name[2] == 't' && | |
9135 | name[3] == 'p' && | |
9136 | name[4] == 'r' && | |
9137 | name[5] == 'o' && | |
9138 | name[6] == 't' && | |
9139 | name[7] == 'o' && | |
9140 | name[8] == 'b' && | |
9141 | name[9] == 'y' && | |
9142 | name[10] == 'n' && | |
9143 | name[11] == 'u' && | |
9144 | name[12] == 'm' && | |
9145 | name[13] == 'b' && | |
9146 | name[14] == 'e' && | |
9147 | name[15] == 'r') | |
9148 | { /* getprotobynumber */ | |
9149 | return -KEY_getprotobynumber; | |
9150 | } | |
9151 | ||
9152 | goto unknown; | |
9153 | ||
9154 | default: | |
9155 | goto unknown; | |
9156 | } | |
9157 | ||
9158 | unknown: | |
9159 | return 0; | |
a687059c LW |
9160 | } |
9161 | ||
76e3520e | 9162 | STATIC void |
a28a866d | 9163 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 9164 | { |
2f3197b3 | 9165 | |
d008e5eb | 9166 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
9167 | if (ckWARN(WARN_SYNTAX)) { |
9168 | int level = 1; | |
a28a866d | 9169 | const char *w; |
d008e5eb GS |
9170 | for (w = s+2; *w && level; w++) { |
9171 | if (*w == '(') | |
9172 | ++level; | |
9173 | else if (*w == ')') | |
9174 | --level; | |
9175 | } | |
a28a866d NC |
9176 | while (isSPACE(*w)) |
9177 | ++w; | |
d008e5eb | 9178 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 9179 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 9180 | "%s (...) interpreted as function",name); |
d008e5eb | 9181 | } |
2f3197b3 | 9182 | } |
3280af22 | 9183 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 9184 | s++; |
a687059c LW |
9185 | if (*s == '(') |
9186 | s++; | |
3280af22 | 9187 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 9188 | s++; |
7e2040f0 | 9189 | if (isIDFIRST_lazy_if(s,UTF)) { |
a28a866d | 9190 | const char * const w = s++; |
7e2040f0 | 9191 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 9192 | s++; |
3280af22 | 9193 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 9194 | s++; |
e929a76b | 9195 | if (*s == ',') { |
a28a866d NC |
9196 | GV* gv; |
9197 | if (keyword((char *)w, s - w)) | |
9198 | return; | |
9199 | ||
9200 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
9201 | if (gv && GvCVu(gv)) | |
e929a76b | 9202 | return; |
cea2e8a9 | 9203 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
9204 | } |
9205 | } | |
9206 | } | |
9207 | ||
423cee85 JH |
9208 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
9209 | Best used as sv=new_constant(..., sv, ...). | |
9210 | If s, pv are NULL, calls subroutine with one argument, | |
9211 | and type is used with error messages only. */ | |
9212 | ||
b3ac6de7 | 9213 | STATIC SV * |
1f49be52 | 9214 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 9215 | const char *type) |
b3ac6de7 | 9216 | { |
b3ac6de7 | 9217 | dSP; |
c6d79d47 | 9218 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 9219 | SV *res; |
b3ac6de7 IZ |
9220 | SV **cvp; |
9221 | SV *cv, *typesv; | |
9469442c | 9222 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 9223 | |
f0af216f | 9224 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
9225 | SV *msg; |
9226 | ||
d2ae4405 JH |
9227 | why2 = (const char *) |
9228 | (strEQ(key,"charnames") | |
9229 | ? "(possibly a missing \"use charnames ...\")" | |
9230 | : ""); | |
4e553d73 | 9231 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
9232 | (type ? type: "undef"), why2); |
9233 | ||
9234 | /* This is convoluted and evil ("goto considered harmful") | |
9235 | * but I do not understand the intricacies of all the different | |
9236 | * failure modes of %^H in here. The goal here is to make | |
9237 | * the most probable error message user-friendly. --jhi */ | |
9238 | ||
9239 | goto msgdone; | |
9240 | ||
423cee85 | 9241 | report: |
4e553d73 | 9242 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 9243 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 9244 | msgdone: |
ac0d7cc5 | 9245 | yyerror((char *)SvPVX_const(msg)); |
423cee85 JH |
9246 | SvREFCNT_dec(msg); |
9247 | return sv; | |
9248 | } | |
b3ac6de7 IZ |
9249 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
9250 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
9251 | why1 = "$^H{"; |
9252 | why2 = key; | |
f0af216f | 9253 | why3 = "} is not defined"; |
423cee85 | 9254 | goto report; |
b3ac6de7 IZ |
9255 | } |
9256 | sv_2mortal(sv); /* Parent created it permanently */ | |
9257 | cv = *cvp; | |
423cee85 JH |
9258 | if (!pv && s) |
9259 | pv = sv_2mortal(newSVpvn(s, len)); | |
9260 | if (type && pv) | |
9261 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 9262 | else |
423cee85 | 9263 | typesv = &PL_sv_undef; |
4e553d73 | 9264 | |
e788e7d3 | 9265 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
9266 | ENTER ; |
9267 | SAVETMPS; | |
4e553d73 | 9268 | |
423cee85 | 9269 | PUSHMARK(SP) ; |
a5845cb7 | 9270 | EXTEND(sp, 3); |
423cee85 JH |
9271 | if (pv) |
9272 | PUSHs(pv); | |
b3ac6de7 | 9273 | PUSHs(sv); |
423cee85 JH |
9274 | if (pv) |
9275 | PUSHs(typesv); | |
b3ac6de7 | 9276 | PUTBACK; |
423cee85 | 9277 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 9278 | |
423cee85 | 9279 | SPAGAIN ; |
4e553d73 | 9280 | |
423cee85 | 9281 | /* Check the eval first */ |
9b0e499b | 9282 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
d7559646 | 9283 | sv_catpvs(ERRSV, "Propagated"); |
ac0d7cc5 | 9284 | yyerror((char *)SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 9285 | (void)POPs; |
be2d5e07 | 9286 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
9287 | } |
9288 | else { | |
9289 | res = POPs; | |
be2d5e07 | 9290 | SvREFCNT_inc_simple_void(res); |
423cee85 | 9291 | } |
4e553d73 | 9292 | |
423cee85 JH |
9293 | PUTBACK ; |
9294 | FREETMPS ; | |
9295 | LEAVE ; | |
b3ac6de7 | 9296 | POPSTACK; |
4e553d73 | 9297 | |
b3ac6de7 | 9298 | if (!SvOK(res)) { |
423cee85 JH |
9299 | why1 = "Call to &{$^H{"; |
9300 | why2 = key; | |
f0af216f | 9301 | why3 = "}} did not return a defined value"; |
423cee85 JH |
9302 | sv = res; |
9303 | goto report; | |
9b0e499b | 9304 | } |
423cee85 | 9305 | |
9b0e499b | 9306 | return res; |
b3ac6de7 | 9307 | } |
4e553d73 | 9308 | |
057b822e NC |
9309 | /* Returns a NUL terminated string, with the length of the string written to |
9310 | *slp | |
9311 | */ | |
76e3520e | 9312 | STATIC char * |
cea2e8a9 | 9313 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 LW |
9314 | { |
9315 | register char *d = dest; | |
c6d79d47 | 9316 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 9317 | for (;;) { |
8903cb82 | 9318 | if (d >= e) |
cea2e8a9 | 9319 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 9320 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 9321 | *d++ = *s++; |
8e7b0921 | 9322 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
9323 | *d++ = ':'; |
9324 | *d++ = ':'; | |
9325 | s++; | |
9326 | } | |
8e7b0921 | 9327 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
9328 | *d++ = *s++; |
9329 | *d++ = *s++; | |
9330 | } | |
fd400ab9 | 9331 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 9332 | char *t = s + UTF8SKIP(s); |
8e7b0921 | 9333 | size_t len; |
fd400ab9 | 9334 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 9335 | t += UTF8SKIP(t); |
8e7b0921 AL |
9336 | len = t - s; |
9337 | if (d + len > e) | |
cea2e8a9 | 9338 | Perl_croak(aTHX_ ident_too_long); |
8e7b0921 AL |
9339 | Copy(s, d, len, char); |
9340 | d += len; | |
a0ed51b3 LW |
9341 | s = t; |
9342 | } | |
463ee0b2 LW |
9343 | else { |
9344 | *d = '\0'; | |
9345 | *slp = d - dest; | |
9346 | return s; | |
e929a76b | 9347 | } |
378cc40b LW |
9348 | } |
9349 | } | |
9350 | ||
76e3520e | 9351 | STATIC char * |
24c2fff4 | 9352 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 9353 | { |
8916b559 | 9354 | char *bracket = NULL; |
748a9306 | 9355 | char funny = *s++; |
8916b559 NC |
9356 | register char *d = dest; |
9357 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 9358 | |
a0d0e21e | 9359 | if (isSPACE(*s)) |
fe656965 | 9360 | s = PEEKSPACE(s); |
de3bb511 | 9361 | if (isDIGIT(*s)) { |
8903cb82 | 9362 | while (isDIGIT(*s)) { |
9363 | if (d >= e) | |
cea2e8a9 | 9364 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 9365 | *d++ = *s++; |
8903cb82 | 9366 | } |
378cc40b LW |
9367 | } |
9368 | else { | |
463ee0b2 | 9369 | for (;;) { |
8903cb82 | 9370 | if (d >= e) |
cea2e8a9 | 9371 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 9372 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 9373 | *d++ = *s++; |
7e2040f0 | 9374 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
9375 | *d++ = ':'; |
9376 | *d++ = ':'; | |
9377 | s++; | |
9378 | } | |
a0d0e21e | 9379 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
9380 | *d++ = *s++; |
9381 | *d++ = *s++; | |
9382 | } | |
fd400ab9 | 9383 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 9384 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 9385 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
9386 | t += UTF8SKIP(t); |
9387 | if (d + (t - s) > e) | |
cea2e8a9 | 9388 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
9389 | Copy(s, d, t - s, char); |
9390 | d += t - s; | |
9391 | s = t; | |
9392 | } | |
463ee0b2 LW |
9393 | else |
9394 | break; | |
9395 | } | |
378cc40b LW |
9396 | } |
9397 | *d = '\0'; | |
9398 | d = dest; | |
79072805 | 9399 | if (*d) { |
3280af22 NIS |
9400 | if (PL_lex_state != LEX_NORMAL) |
9401 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 9402 | return s; |
378cc40b | 9403 | } |
748a9306 | 9404 | if (*s == '$' && s[1] && |
3c71ae1e | 9405 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 9406 | { |
4810e5ec | 9407 | return s; |
5cd24f17 | 9408 | } |
79072805 LW |
9409 | if (*s == '{') { |
9410 | bracket = s; | |
9411 | s++; | |
9412 | } | |
9413 | else if (ck_uni) | |
9414 | check_uni(); | |
93a17b20 | 9415 | if (s < send) |
79072805 LW |
9416 | *d = *s++; |
9417 | d[1] = '\0'; | |
2b92dfce | 9418 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 9419 | *d = toCTRL(*s); |
9420 | s++; | |
de3bb511 | 9421 | } |
79072805 | 9422 | if (bracket) { |
748a9306 | 9423 | if (isSPACE(s[-1])) { |
fa83b5b6 | 9424 | while (s < send) { |
24c2fff4 | 9425 | const char ch = *s++; |
bf4acbe4 | 9426 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 9427 | *d = ch; |
9428 | break; | |
9429 | } | |
9430 | } | |
748a9306 | 9431 | } |
7e2040f0 | 9432 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 9433 | d++; |
a0ed51b3 | 9434 | if (UTF) { |
8916b559 NC |
9435 | char *end = s; |
9436 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
9437 | end += UTF8SKIP(end); | |
9438 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
9439 | end += UTF8SKIP(end); | |
a0ed51b3 | 9440 | } |
8916b559 NC |
9441 | Copy(s, d, end - s, char); |
9442 | d += end - s; | |
9443 | s = end; | |
a0ed51b3 LW |
9444 | } |
9445 | else { | |
2b92dfce | 9446 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 9447 | *d++ = *s++; |
2b92dfce | 9448 | if (d >= e) |
cea2e8a9 | 9449 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 9450 | } |
79072805 | 9451 | *d = '\0'; |
8e7b0921 AL |
9452 | while (s < send && SPACE_OR_TAB(*s)) |
9453 | s++; | |
ff68c719 | 9454 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
599cee73 | 9455 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest)) { |
d2ae4405 JH |
9456 | const char * const brack = |
9457 | (const char *) | |
9458 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 9459 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 9460 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
9461 | funny, dest, brack, funny, dest, brack); |
9462 | } | |
79072805 | 9463 | bracket++; |
a0be28da | 9464 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
9465 | return s; |
9466 | } | |
4e553d73 NIS |
9467 | } |
9468 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
9469 | * 1999-02-27 mjd-perl-patch@plover.com */ |
9470 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
9471 | && isALNUM(*s)) | |
9472 | { | |
9473 | d++; | |
9474 | while (isALNUM(*s) && d < e) { | |
9475 | *d++ = *s++; | |
9476 | } | |
9477 | if (d >= e) | |
cea2e8a9 | 9478 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 9479 | *d = '\0'; |
79072805 LW |
9480 | } |
9481 | if (*s == '}') { | |
9482 | s++; | |
5835a535 | 9483 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 9484 | PL_lex_state = LEX_INTERPEND; |
5835a535 JH |
9485 | PL_expect = XREF; |
9486 | } | |
d008e5eb | 9487 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 9488 | if (ckWARN(WARN_AMBIGUOUS) && |
864dbfa3 | 9489 | (keyword(dest, d - dest) || get_cv(dest, FALSE))) |
d008e5eb | 9490 | { |
8e7b0921 AL |
9491 | if (funny == '#') |
9492 | funny = '@'; | |
9014280d | 9493 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
9494 | "Ambiguous use of %c{%s} resolved to %c%s", |
9495 | funny, dest, funny, dest); | |
9496 | } | |
9497 | } | |
79072805 LW |
9498 | } |
9499 | else { | |
9500 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 9501 | *dest = '\0'; |
79072805 LW |
9502 | } |
9503 | } | |
3280af22 NIS |
9504 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
9505 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
9506 | return s; |
9507 | } | |
9508 | ||
cea2e8a9 | 9509 | void |
2b36a5a0 | 9510 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 9511 | { |
1e7ed80e | 9512 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 9513 | if (ch == 'i') |
a0d0e21e | 9514 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
9515 | else if (ch == 'g') |
9516 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 9517 | else if (ch == 'c') |
9518 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
9519 | else if (ch == 'o') |
9520 | *pmfl |= PMf_KEEP; | |
9521 | else if (ch == 'm') | |
9522 | *pmfl |= PMf_MULTILINE; | |
9523 | else if (ch == 's') | |
9524 | *pmfl |= PMf_SINGLELINE; | |
9525 | else if (ch == 'x') | |
9526 | *pmfl |= PMf_EXTENDED; | |
9527 | } | |
378cc40b | 9528 | |
76e3520e | 9529 | STATIC char * |
cea2e8a9 | 9530 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 9531 | { |
79072805 | 9532 | PMOP *pm; |
24c2fff4 | 9533 | char *s = scan_str(start,FALSE,FALSE); |
d2ae4405 JH |
9534 | const char * const valid_flags = |
9535 | (const char *)((type == OP_QR) ? "iomsx" : "iogcmsx"); | |
378cc40b | 9536 | |
1e27baec | 9537 | if (!s) { |
8916b559 | 9538 | const char * const delimiter = skipspace(start); |
d2ae4405 JH |
9539 | Perl_croak(aTHX_ |
9540 | (const char *) | |
9541 | (*delimiter == '?' | |
9542 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
9543 | : "Search pattern not terminated" )); | |
1e27baec | 9544 | } |
bbce6d69 | 9545 | |
8782bef2 | 9546 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 9547 | if (PL_multi_open == '?') |
79072805 | 9548 | pm->op_pmflags |= PMf_ONCE; |
8916b559 NC |
9549 | while (*s && strchr(valid_flags, *s)) |
9550 | pmflag(&pm->op_pmflags,*s++); | |
4ac733c9 | 9551 | /* issue a warning if /c is specified,but /g is not */ |
f5e9f069 NC |
9552 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
9553 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 9554 | { |
8c89da26 | 9555 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
9556 | } |
9557 | ||
4633a7c4 | 9558 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 9559 | |
3280af22 | 9560 | PL_lex_op = (OP*)pm; |
79072805 | 9561 | yylval.ival = OP_MATCH; |
378cc40b LW |
9562 | return s; |
9563 | } | |
9564 | ||
76e3520e | 9565 | STATIC char * |
cea2e8a9 | 9566 | S_scan_subst(pTHX_ char *start) |
79072805 | 9567 | { |
a0d0e21e | 9568 | register char *s; |
79072805 | 9569 | register PMOP *pm; |
4fdae800 | 9570 | I32 first_start; |
79072805 LW |
9571 | I32 es = 0; |
9572 | ||
79072805 LW |
9573 | yylval.ival = OP_NULL; |
9574 | ||
09bef843 | 9575 | s = scan_str(start,FALSE,FALSE); |
79072805 | 9576 | |
37fd879b | 9577 | if (!s) |
cea2e8a9 | 9578 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 9579 | |
3280af22 | 9580 | if (s[-1] == PL_multi_open) |
79072805 LW |
9581 | s--; |
9582 | ||
3280af22 | 9583 | first_start = PL_multi_start; |
09bef843 | 9584 | s = scan_str(s,FALSE,FALSE); |
79072805 | 9585 | if (!s) { |
37fd879b | 9586 | if (PL_lex_stuff) { |
3280af22 | 9587 | SvREFCNT_dec(PL_lex_stuff); |
0e2d6244 | 9588 | PL_lex_stuff = NULL; |
37fd879b | 9589 | } |
cea2e8a9 | 9590 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 9591 | } |
3280af22 | 9592 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 9593 | |
79072805 | 9594 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
48c036b1 | 9595 | while (*s) { |
a687059c LW |
9596 | if (*s == 'e') { |
9597 | s++; | |
2f3197b3 | 9598 | es++; |
a687059c | 9599 | } |
b3eb6a9b | 9600 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 9601 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
9602 | else |
9603 | break; | |
378cc40b | 9604 | } |
79072805 | 9605 | |
8c89da26 AL |
9606 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
9607 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
9608 | } |
9609 | ||
79072805 | 9610 | if (es) { |
8916b559 NC |
9611 | SV * const repl = newSVpvs(""); |
9612 | ||
0244c3a4 GS |
9613 | PL_sublex_info.super_bufptr = s; |
9614 | PL_sublex_info.super_bufend = PL_bufend; | |
9615 | PL_multi_end = 0; | |
79072805 | 9616 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 9617 | while (es-- > 0) |
d2ae4405 | 9618 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
a28a866d | 9619 | sv_catpvs(repl, "{"); |
3280af22 | 9620 | sv_catsv(repl, PL_lex_repl); |
8ab01294 NC |
9621 | if (strchr(SvPVX(PL_lex_repl), '#')) |
9622 | sv_catpvs(repl, "\n"); | |
a28a866d | 9623 | sv_catpvs(repl, "}"); |
25da4f38 | 9624 | SvEVALED_on(repl); |
3280af22 NIS |
9625 | SvREFCNT_dec(PL_lex_repl); |
9626 | PL_lex_repl = repl; | |
378cc40b | 9627 | } |
79072805 | 9628 | |
4633a7c4 | 9629 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 9630 | PL_lex_op = (OP*)pm; |
79072805 | 9631 | yylval.ival = OP_SUBST; |
378cc40b LW |
9632 | return s; |
9633 | } | |
9634 | ||
76e3520e | 9635 | STATIC char * |
cea2e8a9 | 9636 | S_scan_trans(pTHX_ char *start) |
378cc40b | 9637 | { |
a0d0e21e | 9638 | register char* s; |
11343788 | 9639 | OP *o; |
79072805 LW |
9640 | short *tbl; |
9641 | I32 squash; | |
a0ed51b3 | 9642 | I32 del; |
79072805 LW |
9643 | I32 complement; |
9644 | ||
9645 | yylval.ival = OP_NULL; | |
9646 | ||
09bef843 | 9647 | s = scan_str(start,FALSE,FALSE); |
37fd879b | 9648 | if (!s) |
cea2e8a9 | 9649 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
3280af22 | 9650 | if (s[-1] == PL_multi_open) |
2f3197b3 LW |
9651 | s--; |
9652 | ||
09bef843 | 9653 | s = scan_str(s,FALSE,FALSE); |
79072805 | 9654 | if (!s) { |
37fd879b | 9655 | if (PL_lex_stuff) { |
3280af22 | 9656 | SvREFCNT_dec(PL_lex_stuff); |
0e2d6244 | 9657 | PL_lex_stuff = NULL; |
37fd879b | 9658 | } |
cea2e8a9 | 9659 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 9660 | } |
79072805 | 9661 | |
a0ed51b3 | 9662 | complement = del = squash = 0; |
3c71ae1e NC |
9663 | while (1) { |
9664 | switch (*s) { | |
9665 | case 'c': | |
79072805 | 9666 | complement = OPpTRANS_COMPLEMENT; |
3c71ae1e NC |
9667 | break; |
9668 | case 'd': | |
a0ed51b3 | 9669 | del = OPpTRANS_DELETE; |
3c71ae1e NC |
9670 | break; |
9671 | case 's': | |
79072805 | 9672 | squash = OPpTRANS_SQUASH; |
3c71ae1e NC |
9673 | break; |
9674 | default: | |
9675 | goto no_more; | |
9676 | } | |
395c3793 LW |
9677 | s++; |
9678 | } | |
3c71ae1e | 9679 | no_more: |
8973db79 | 9680 | |
cd7a8267 | 9681 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 9682 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
7948272d NIS |
9683 | o->op_private = del|squash|complement| |
9684 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| | |
9685 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 9686 | |
3280af22 | 9687 | PL_lex_op = o; |
79072805 LW |
9688 | yylval.ival = OP_TRANS; |
9689 | return s; | |
9690 | } | |
9691 | ||
76e3520e | 9692 | STATIC char * |
cea2e8a9 | 9693 | S_scan_heredoc(pTHX_ register char *s) |
79072805 LW |
9694 | { |
9695 | SV *herewas; | |
9696 | I32 op_type = OP_SCALAR; | |
9697 | I32 len; | |
9698 | SV *tmpstr; | |
9699 | char term; | |
e2b56717 | 9700 | const char *found_newline; |
79072805 | 9701 | register char *d; |
fc36a67e | 9702 | register char *e; |
4633a7c4 | 9703 | char *peek; |
24c2fff4 | 9704 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
79072805 LW |
9705 | |
9706 | s += 2; | |
3280af22 NIS |
9707 | d = PL_tokenbuf; |
9708 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 9709 | if (!outer) |
79072805 | 9710 | *d++ = '\n'; |
8e7b0921 AL |
9711 | peek = s; |
9712 | while (SPACE_OR_TAB(*peek)) | |
9713 | peek++; | |
3c71ae1e | 9714 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 9715 | s = peek; |
79072805 | 9716 | term = *s++; |
3280af22 | 9717 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 9718 | d += len; |
3280af22 | 9719 | if (s < PL_bufend) |
79072805 | 9720 | s++; |
79072805 LW |
9721 | } |
9722 | else { | |
9723 | if (*s == '\\') | |
9724 | s++, term = '\''; | |
9725 | else | |
9726 | term = '"'; | |
7e2040f0 | 9727 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 9728 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 9729 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 9730 | if (d < e) |
9731 | *d++ = *s; | |
9732 | } | |
9733 | } | |
3280af22 | 9734 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 9735 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
9736 | *d++ = '\n'; |
9737 | *d = '\0'; | |
3280af22 | 9738 | len = d - PL_tokenbuf; |
6a27c188 | 9739 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
9740 | d = strchr(s, '\r'); |
9741 | if (d) { | |
481da01c | 9742 | char * const olds = s; |
f63a84b2 | 9743 | s = d; |
3280af22 | 9744 | while (s < PL_bufend) { |
f63a84b2 LW |
9745 | if (*s == '\r') { |
9746 | *d++ = '\n'; | |
9747 | if (*++s == '\n') | |
9748 | s++; | |
9749 | } | |
9750 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
9751 | *d++ = *s++; | |
9752 | s++; | |
9753 | } | |
9754 | else | |
9755 | *d++ = *s++; | |
9756 | } | |
9757 | *d = '\0'; | |
3280af22 | 9758 | PL_bufend = d; |
5e7e76a3 | 9759 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
9760 | s = olds; |
9761 | } | |
9762 | #endif | |
d2ae4405 | 9763 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
e2b56717 AL |
9764 | herewas = newSVpvn(s,PL_bufend-s); |
9765 | } | |
9766 | else { | |
9767 | s--; | |
9768 | herewas = newSVpvn(s,found_newline-s); | |
9769 | } | |
79072805 | 9770 | s += SvCUR(herewas); |
748a9306 | 9771 | |
133cdda0 | 9772 | tmpstr = newSV(79); |
748a9306 LW |
9773 | sv_upgrade(tmpstr, SVt_PVIV); |
9774 | if (term == '\'') { | |
79072805 | 9775 | op_type = OP_CONST; |
0da6cfda | 9776 | SvIV_set(tmpstr, -1); |
748a9306 LW |
9777 | } |
9778 | else if (term == '`') { | |
79072805 | 9779 | op_type = OP_BACKTICK; |
0da6cfda | 9780 | SvIV_set(tmpstr, '\\'); |
748a9306 | 9781 | } |
79072805 LW |
9782 | |
9783 | CLINE; | |
57843af0 | 9784 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
9785 | PL_multi_open = PL_multi_close = '<'; |
9786 | term = *PL_tokenbuf; | |
0244c3a4 | 9787 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
8916b559 NC |
9788 | char * const bufptr = PL_sublex_info.super_bufptr; |
9789 | char * const bufend = PL_sublex_info.super_bufend; | |
481da01c | 9790 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
9791 | s = strchr(bufptr, '\n'); |
9792 | if (!s) | |
9793 | s = bufend; | |
9794 | d = s; | |
9795 | while (s < bufend && | |
9796 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
9797 | if (*s++ == '\n') | |
57843af0 | 9798 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
9799 | } |
9800 | if (s >= bufend) { | |
eb160463 | 9801 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
9802 | missingterm(PL_tokenbuf); |
9803 | } | |
9804 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
9805 | sv_setpvn(tmpstr,d+1,s-d); | |
9806 | s += len - 1; | |
9807 | sv_catpvn(herewas,s,bufend-s); | |
5e7e76a3 | 9808 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
9809 | |
9810 | s = olds; | |
9811 | goto retval; | |
9812 | } | |
9813 | else if (!outer) { | |
79072805 | 9814 | d = s; |
3280af22 NIS |
9815 | while (s < PL_bufend && |
9816 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 9817 | if (*s++ == '\n') |
57843af0 | 9818 | CopLINE_inc(PL_curcop); |
79072805 | 9819 | } |
3280af22 | 9820 | if (s >= PL_bufend) { |
eb160463 | 9821 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 9822 | missingterm(PL_tokenbuf); |
79072805 LW |
9823 | } |
9824 | sv_setpvn(tmpstr,d+1,s-d); | |
9825 | s += len - 1; | |
57843af0 | 9826 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 9827 | |
3280af22 NIS |
9828 | sv_catpvn(herewas,s,PL_bufend-s); |
9829 | sv_setsv(PL_linestr,herewas); | |
9830 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
9831 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
0e2d6244 | 9832 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
9833 | } |
9834 | else | |
9835 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 9836 | while (s >= PL_bufend) { /* multiple line string? */ |
fd2d0953 | 9837 | if (!outer || |
3280af22 | 9838 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 9839 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 9840 | missingterm(PL_tokenbuf); |
79072805 | 9841 | } |
57843af0 | 9842 | CopLINE_inc(PL_curcop); |
3280af22 | 9843 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
0e2d6244 | 9844 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 9845 | #ifndef PERL_STRICT_CR |
3280af22 | 9846 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
9847 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
9848 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 9849 | { |
3280af22 NIS |
9850 | PL_bufend[-2] = '\n'; |
9851 | PL_bufend--; | |
5e7e76a3 | 9852 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 9853 | } |
3280af22 NIS |
9854 | else if (PL_bufend[-1] == '\r') |
9855 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 9856 | } |
3280af22 NIS |
9857 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
9858 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 9859 | #endif |
3f3e5b8d NC |
9860 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
9861 | update_debugger_info(PL_linestr, NULL, 0); | |
3280af22 | 9862 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
5e7e76a3 | 9863 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
6dc97886 | 9864 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
9865 | sv_catsv(PL_linestr,herewas); |
9866 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
6dc97886 | 9867 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
9868 | } |
9869 | else { | |
3280af22 NIS |
9870 | s = PL_bufend; |
9871 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
9872 | } |
9873 | } | |
79072805 | 9874 | s++; |
0244c3a4 | 9875 | retval: |
57843af0 | 9876 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 9877 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
ea5389ca | 9878 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 9879 | } |
8990e307 | 9880 | SvREFCNT_dec(herewas); |
c0401c5d | 9881 | if (!IN_BYTES) { |
5e7e76a3 | 9882 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
c0401c5d JH |
9883 | SvUTF8_on(tmpstr); |
9884 | else if (PL_encoding) | |
9885 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
9886 | } | |
3280af22 | 9887 | PL_lex_stuff = tmpstr; |
79072805 LW |
9888 | yylval.ival = op_type; |
9889 | return s; | |
9890 | } | |
9891 | ||
02aa26ce NT |
9892 | /* scan_inputsymbol |
9893 | takes: current position in input buffer | |
9894 | returns: new position in input buffer | |
9895 | side-effects: yylval and lex_op are set. | |
9896 | ||
9897 | This code handles: | |
9898 | ||
9899 | <> read from ARGV | |
9900 | <FH> read from filehandle | |
9901 | <pkg::FH> read from package qualified filehandle | |
9902 | <pkg'FH> read from package qualified filehandle | |
9903 | <$fh> read from filehandle in $fh | |
9904 | <*.h> filename glob | |
9905 | ||
9906 | */ | |
9907 | ||
76e3520e | 9908 | STATIC char * |
cea2e8a9 | 9909 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 9910 | { |
02aa26ce | 9911 | register char *s = start; /* current position in buffer */ |
1b420867 | 9912 | char *end; |
79072805 LW |
9913 | I32 len; |
9914 | ||
8916b559 NC |
9915 | char *d = PL_tokenbuf; /* start of temp holding space */ |
9916 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
9917 | ||
1b420867 GS |
9918 | end = strchr(s, '\n'); |
9919 | if (!end) | |
9920 | end = PL_bufend; | |
ac0d7cc5 | 9921 | s = delimcpy(d, (char *)e, s + 1, end, '>', &len); /* extract until > */ |
02aa26ce NT |
9922 | |
9923 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 9924 | or if it didn't end, or if we see a newline |
02aa26ce NT |
9925 | */ |
9926 | ||
9f01e09a | 9927 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 9928 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 9929 | if (s >= end) |
cea2e8a9 | 9930 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 9931 | |
fc36a67e | 9932 | s++; |
02aa26ce NT |
9933 | |
9934 | /* check for <$fh> | |
9935 | Remember, only scalar variables are interpreted as filehandles by | |
9936 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
9937 | treated as a glob() call. | |
9938 | This code makes use of the fact that except for the $ at the front, | |
9939 | a scalar variable and a filehandle look the same. | |
9940 | */ | |
4633a7c4 | 9941 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
9942 | |
9943 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 9944 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 9945 | d++; |
02aa26ce NT |
9946 | |
9947 | /* If we've tried to read what we allow filehandles to look like, and | |
9948 | there's still text left, then it must be a glob() and not a getline. | |
9949 | Use scan_str to pull out the stuff between the <> and treat it | |
9950 | as nothing more than a string. | |
9951 | */ | |
9952 | ||
3280af22 | 9953 | if (d - PL_tokenbuf != len) { |
79072805 LW |
9954 | yylval.ival = OP_GLOB; |
9955 | set_csh(); | |
09bef843 | 9956 | s = scan_str(start,FALSE,FALSE); |
79072805 | 9957 | if (!s) |
cea2e8a9 | 9958 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
9959 | return s; |
9960 | } | |
395c3793 | 9961 | else { |
9b3023bc | 9962 | bool readline_overriden = FALSE; |
8916b559 | 9963 | GV *gv_readline; |
9b3023bc | 9964 | GV **gvp; |
02aa26ce | 9965 | /* we're in a filehandle read situation */ |
3280af22 | 9966 | d = PL_tokenbuf; |
02aa26ce NT |
9967 | |
9968 | /* turn <> into <ARGV> */ | |
79072805 | 9969 | if (!len) |
735fe74b | 9970 | Copy("ARGV",d,5,char); |
02aa26ce | 9971 | |
9b3023bc | 9972 | /* Check whether readline() is overriden */ |
b977d03a | 9973 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
8916b559 | 9974 | if ((gv_readline |
ba979b31 | 9975 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 9976 | || |
d7559646 | 9977 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 9978 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 9979 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
9980 | readline_overriden = TRUE; |
9981 | ||
02aa26ce NT |
9982 | /* if <$fh>, create the ops to turn the variable into a |
9983 | filehandle | |
9984 | */ | |
79072805 | 9985 | if (*d == '$') { |
02aa26ce NT |
9986 | /* try to find it in the pad for this block, otherwise find |
9987 | add symbol table ops | |
9988 | */ | |
620e3b3d NC |
9989 | const PADOFFSET tmp = pad_findmy(d); |
9990 | if (tmp != NOT_IN_PAD) { | |
62d59642 | 9991 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8916b559 | 9992 | SV * const sym = sv_2mortal( |
26ab6a78 | 9993 | newSVpv(HvNAME_get(PAD_COMPNAME_OURSTASH(tmp)),0)); |
d7559646 | 9994 | sv_catpvs(sym, "::"); |
f558d5af JH |
9995 | sv_catpv(sym, d+1); |
9996 | d = SvPVX(sym); | |
9997 | goto intro_sym; | |
9998 | } | |
9999 | else { | |
8916b559 | 10000 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 10001 | o->op_targ = tmp; |
9b3023bc RGS |
10002 | PL_lex_op = readline_overriden |
10003 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
10004 | append_elem(OP_LIST, o, | |
10005 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
10006 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 10007 | } |
a0d0e21e LW |
10008 | } |
10009 | else { | |
f558d5af JH |
10010 | GV *gv; |
10011 | ++d; | |
10012 | intro_sym: | |
10013 | gv = gv_fetchpv(d, | |
10014 | (PL_in_eval | |
10015 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 10016 | : GV_ADDMULTI), |
f558d5af | 10017 | SVt_PV); |
9b3023bc RGS |
10018 | PL_lex_op = readline_overriden |
10019 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
10020 | append_elem(OP_LIST, | |
10021 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
10022 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
10023 | : (OP*)newUNOP(OP_READLINE, 0, | |
10024 | newUNOP(OP_RV2SV, 0, | |
10025 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 10026 | } |
7c6fadd6 RGS |
10027 | if (!readline_overriden) |
10028 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 10029 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
10030 | yylval.ival = OP_NULL; |
10031 | } | |
02aa26ce NT |
10032 | |
10033 | /* If it's none of the above, it must be a literal filehandle | |
10034 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 10035 | else { |
8916b559 | 10036 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
10037 | PL_lex_op = readline_overriden |
10038 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
10039 | append_elem(OP_LIST, | |
10040 | newGVOP(OP_GV, 0, gv), | |
10041 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
10042 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
10043 | yylval.ival = OP_NULL; |
10044 | } | |
10045 | } | |
02aa26ce | 10046 | |
79072805 LW |
10047 | return s; |
10048 | } | |
10049 | ||
02aa26ce NT |
10050 | |
10051 | /* scan_str | |
10052 | takes: start position in buffer | |
09bef843 SB |
10053 | keep_quoted preserve \ on the embedded delimiter(s) |
10054 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
10055 | returns: position to continue reading from buffer |
10056 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
10057 | updates the read buffer. | |
10058 | ||
10059 | This subroutine pulls a string out of the input. It is called for: | |
10060 | q single quotes q(literal text) | |
10061 | ' single quotes 'literal text' | |
10062 | qq double quotes qq(interpolate $here please) | |
10063 | " double quotes "interpolate $here please" | |
10064 | qx backticks qx(/bin/ls -l) | |
10065 | ` backticks `/bin/ls -l` | |
10066 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
10067 | m// regexp match m/this/ | |
10068 | s/// regexp substitute s/this/that/ | |
10069 | tr/// string transliterate tr/this/that/ | |
10070 | y/// string transliterate y/this/that/ | |
10071 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 10072 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
10073 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
10074 | ||
10075 | In most of these cases (all but <>, patterns and transliterate) | |
10076 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
10077 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
10078 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
10079 | calls scan_str(). | |
4e553d73 | 10080 | |
02aa26ce NT |
10081 | It skips whitespace before the string starts, and treats the first |
10082 | character as the delimiter. If the delimiter is one of ([{< then | |
10083 | the corresponding "close" character )]}> is used as the closing | |
10084 | delimiter. It allows quoting of delimiters, and if the string has | |
10085 | balanced delimiters ([{<>}]) it allows nesting. | |
10086 | ||
37fd879b HS |
10087 | On success, the SV with the resulting string is put into lex_stuff or, |
10088 | if that is already non-NULL, into lex_repl. The second case occurs only | |
10089 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
10090 | For convenience, the terminating delimiter character is stuffed into | |
10091 | SvIVX of the SV. | |
02aa26ce NT |
10092 | */ |
10093 | ||
76e3520e | 10094 | STATIC char * |
09bef843 | 10095 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 10096 | { |
02aa26ce | 10097 | SV *sv; /* scalar value: string */ |
209f66d7 | 10098 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
10099 | register char *s = start; /* current position in the buffer */ |
10100 | register char term; /* terminating character */ | |
10101 | register char *to; /* current position in the sv's data */ | |
10102 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 10103 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
975adce1 | 10104 | I32 termcode; /* terminating char. code */ |
a2a469f9 | 10105 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
975adce1 | 10106 | STRLEN termlen; /* length of terminating string */ |
d409ca69 | 10107 | int last_off = 0; /* last position for nesting bracket */ |
02aa26ce NT |
10108 | |
10109 | /* skip space before the delimiter */ | |
fe656965 NC |
10110 | if (isSPACE(*s)) { |
10111 | s = PEEKSPACE(s); | |
10112 | } | |
02aa26ce NT |
10113 | |
10114 | /* mark where we are, in case we need to report errors */ | |
79072805 | 10115 | CLINE; |
02aa26ce NT |
10116 | |
10117 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 10118 | term = *s; |
975adce1 JH |
10119 | if (!UTF) { |
10120 | termcode = termstr[0] = term; | |
10121 | termlen = 1; | |
10122 | } | |
10123 | else { | |
f8cf5370 | 10124 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
975adce1 JH |
10125 | Copy(s, termstr, termlen, U8); |
10126 | if (!UTF8_IS_INVARIANT(term)) | |
10127 | has_utf8 = TRUE; | |
10128 | } | |
b1c7b182 | 10129 | |
02aa26ce | 10130 | /* mark where we are */ |
57843af0 | 10131 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 10132 | PL_multi_open = term; |
02aa26ce NT |
10133 | |
10134 | /* find corresponding closing delimiter */ | |
93a17b20 | 10135 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
975adce1 JH |
10136 | termcode = termstr[0] = term = tmps[5]; |
10137 | ||
3280af22 | 10138 | PL_multi_close = term; |
79072805 | 10139 | |
133cdda0 NC |
10140 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
10141 | What a random number. */ | |
10142 | sv = newSV(79); | |
ed6116ce | 10143 | sv_upgrade(sv, SVt_PVIV); |
0da6cfda | 10144 | SvIV_set(sv, termcode); |
a0d0e21e | 10145 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
10146 | |
10147 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 10148 | if (keep_delims) |
975adce1 JH |
10149 | sv_catpvn(sv, s, termlen); |
10150 | s += termlen; | |
93a17b20 | 10151 | for (;;) { |
975adce1 JH |
10152 | if (PL_encoding && !UTF) { |
10153 | bool cont = TRUE; | |
10154 | ||
10155 | while (cont) { | |
5e7e76a3 | 10156 | int offset = s - SvPVX_const(PL_linestr); |
4996ee04 | 10157 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f8cf5370 | 10158 | &offset, (char*)termstr, termlen); |
8916b559 NC |
10159 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
10160 | char * const svlast = SvEND(sv) - 1; | |
975adce1 JH |
10161 | |
10162 | for (; s < ns; s++) { | |
10163 | if (*s == '\n' && !PL_rsfp) | |
10164 | CopLINE_inc(PL_curcop); | |
10165 | } | |
10166 | if (!found) | |
10167 | goto read_more_line; | |
10168 | else { | |
10169 | /* handle quoted delimiters */ | |
bc636a03 | 10170 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
24c2fff4 | 10171 | const char *t; |
5e7e76a3 | 10172 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
975adce1 JH |
10173 | t--; |
10174 | if ((svlast-1 - t) % 2) { | |
10175 | if (!keep_quoted) { | |
10176 | *(svlast-1) = term; | |
10177 | *svlast = '\0'; | |
10178 | SvCUR_set(sv, SvCUR(sv) - 1); | |
10179 | } | |
10180 | continue; | |
10181 | } | |
10182 | } | |
10183 | if (PL_multi_open == PL_multi_close) { | |
10184 | cont = FALSE; | |
10185 | } | |
10186 | else { | |
24c2fff4 NC |
10187 | const char *t; |
10188 | char *w; | |
d409ca69 | 10189 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
975adce1 JH |
10190 | /* At here, all closes are "was quoted" one, |
10191 | so we don't check PL_multi_close. */ | |
10192 | if (*t == '\\') { | |
10193 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
10194 | t++; | |
10195 | else | |
10196 | *w++ = *t++; | |
10197 | } | |
10198 | else if (*t == PL_multi_open) | |
10199 | brackets++; | |
10200 | ||
10201 | *w = *t; | |
10202 | } | |
10203 | if (w < t) { | |
10204 | *w++ = term; | |
10205 | *w = '\0'; | |
5e7e76a3 | 10206 | SvCUR_set(sv, w - SvPVX_const(sv)); |
975adce1 | 10207 | } |
d409ca69 | 10208 | last_off = w - SvPVX(sv); |
975adce1 JH |
10209 | if (--brackets <= 0) |
10210 | cont = FALSE; | |
10211 | } | |
10212 | } | |
10213 | } | |
10214 | if (!keep_delims) { | |
10215 | SvCUR_set(sv, SvCUR(sv) - 1); | |
10216 | *SvEND(sv) = '\0'; | |
10217 | } | |
10218 | break; | |
10219 | } | |
10220 | ||
02aa26ce | 10221 | /* extend sv if need be */ |
3280af22 | 10222 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 10223 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 10224 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 10225 | |
02aa26ce | 10226 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
10227 | if (PL_multi_open == PL_multi_close) { |
10228 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 10229 | /* embedded newlines increment the current line number */ |
3280af22 | 10230 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 10231 | CopLINE_inc(PL_curcop); |
02aa26ce | 10232 | /* handle quoted delimiters */ |
3280af22 | 10233 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 10234 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 10235 | s++; |
02aa26ce | 10236 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
10237 | else |
10238 | *to++ = *s++; | |
10239 | } | |
02aa26ce NT |
10240 | /* terminate when run out of buffer (the for() condition), or |
10241 | have found the terminator */ | |
975adce1 JH |
10242 | else if (*s == term) { |
10243 | if (termlen == 1) | |
10244 | break; | |
f8cf5370 | 10245 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
975adce1 JH |
10246 | break; |
10247 | } | |
63cd0674 | 10248 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 10249 | has_utf8 = TRUE; |
93a17b20 LW |
10250 | *to = *s; |
10251 | } | |
10252 | } | |
02aa26ce NT |
10253 | |
10254 | /* if the terminator isn't the same as the start character (e.g., | |
10255 | matched brackets), we have to allow more in the quoting, and | |
10256 | be prepared for nested brackets. | |
10257 | */ | |
93a17b20 | 10258 | else { |
02aa26ce | 10259 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 10260 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 10261 | /* embedded newlines increment the line count */ |
3280af22 | 10262 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 10263 | CopLINE_inc(PL_curcop); |
02aa26ce | 10264 | /* backslashes can escape the open or closing characters */ |
3280af22 | 10265 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
10266 | if (!keep_quoted && |
10267 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
10268 | s++; |
10269 | else | |
10270 | *to++ = *s++; | |
10271 | } | |
02aa26ce | 10272 | /* allow nested opens and closes */ |
3280af22 | 10273 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 10274 | break; |
3280af22 | 10275 | else if (*s == PL_multi_open) |
93a17b20 | 10276 | brackets++; |
63cd0674 | 10277 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 10278 | has_utf8 = TRUE; |
93a17b20 LW |
10279 | *to = *s; |
10280 | } | |
10281 | } | |
02aa26ce | 10282 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 10283 | *to = '\0'; |
5e7e76a3 | 10284 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 10285 | |
02aa26ce NT |
10286 | /* |
10287 | * this next chunk reads more into the buffer if we're not done yet | |
10288 | */ | |
10289 | ||
b1c7b182 GS |
10290 | if (s < PL_bufend) |
10291 | break; /* handle case where we are done yet :-) */ | |
79072805 | 10292 | |
6a27c188 | 10293 | #ifndef PERL_STRICT_CR |
5e7e76a3 | 10294 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
10295 | if ((to[-2] == '\r' && to[-1] == '\n') || |
10296 | (to[-2] == '\n' && to[-1] == '\r')) | |
10297 | { | |
f63a84b2 LW |
10298 | to[-2] = '\n'; |
10299 | to--; | |
5e7e76a3 | 10300 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
10301 | } |
10302 | else if (to[-1] == '\r') | |
10303 | to[-1] = '\n'; | |
10304 | } | |
5e7e76a3 | 10305 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
10306 | to[-1] = '\n'; |
10307 | #endif | |
10308 | ||
975adce1 | 10309 | read_more_line: |
02aa26ce NT |
10310 | /* if we're out of file, or a read fails, bail and reset the current |
10311 | line marker so we can report where the unterminated string began | |
10312 | */ | |
3280af22 NIS |
10313 | if (!PL_rsfp || |
10314 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 10315 | sv_free(sv); |
eb160463 | 10316 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0e2d6244 | 10317 | return NULL; |
79072805 | 10318 | } |
02aa26ce | 10319 | /* we read a line, so increment our line counter */ |
57843af0 | 10320 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 10321 | |
02aa26ce | 10322 | /* update debugger info */ |
3f3e5b8d NC |
10323 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
10324 | update_debugger_info(PL_linestr, NULL, 0); | |
a0ed51b3 | 10325 | |
3280af22 NIS |
10326 | /* having changed the buffer, we must update PL_bufend */ |
10327 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
0e2d6244 | 10328 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 10329 | } |
4e553d73 | 10330 | |
02aa26ce NT |
10331 | /* at this point, we have successfully read the delimited string */ |
10332 | ||
975adce1 JH |
10333 | if (!PL_encoding || UTF) { |
10334 | if (keep_delims) | |
10335 | sv_catpvn(sv, s, termlen); | |
10336 | s += termlen; | |
10337 | } | |
10338 | if (has_utf8 || PL_encoding) | |
b1c7b182 | 10339 | SvUTF8_on(sv); |
5b7ea690 | 10340 | |
57843af0 | 10341 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
10342 | |
10343 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
10344 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
10345 | SvLEN_set(sv, SvCUR(sv) + 1); | |
ea5389ca | 10346 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 10347 | } |
02aa26ce NT |
10348 | |
10349 | /* decide whether this is the first or second quoted string we've read | |
10350 | for this op | |
10351 | */ | |
4e553d73 | 10352 | |
3280af22 NIS |
10353 | if (PL_lex_stuff) |
10354 | PL_lex_repl = sv; | |
79072805 | 10355 | else |
3280af22 | 10356 | PL_lex_stuff = sv; |
378cc40b LW |
10357 | return s; |
10358 | } | |
10359 | ||
02aa26ce NT |
10360 | /* |
10361 | scan_num | |
10362 | takes: pointer to position in buffer | |
10363 | returns: pointer to new position in buffer | |
10364 | side-effects: builds ops for the constant in yylval.op | |
10365 | ||
10366 | Read a number in any of the formats that Perl accepts: | |
10367 | ||
7fd134d9 JH |
10368 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
10369 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
10370 | 0b[01](_?[01])* |
10371 | 0[0-7](_?[0-7])* | |
10372 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 10373 | |
3280af22 | 10374 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
10375 | thing it reads. |
10376 | ||
10377 | If it reads a number without a decimal point or an exponent, it will | |
10378 | try converting the number to an integer and see if it can do so | |
10379 | without loss of precision. | |
10380 | */ | |
4e553d73 | 10381 | |
378cc40b | 10382 | char * |
b73d6f50 | 10383 | Perl_scan_num(pTHX_ char *start, YYSTYPE* lvalp) |
378cc40b | 10384 | { |
a00f3e00 | 10385 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
10386 | register char *d; /* destination in temp buffer */ |
10387 | register char *e; /* end of temp buffer */ | |
86554af2 | 10388 | NV nv; /* number read, as a double */ |
0e2d6244 | 10389 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 10390 | bool floatit; /* boolean: int or float? */ |
4358d444 | 10391 | const char *lastub = NULL; /* position of last underbar */ |
a00f3e00 | 10392 | static char const number_too_long[] = "Number too long"; |
378cc40b | 10393 | |
02aa26ce NT |
10394 | /* We use the first character to decide what type of number this is */ |
10395 | ||
378cc40b | 10396 | switch (*s) { |
79072805 | 10397 | default: |
cea2e8a9 | 10398 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 10399 | |
02aa26ce | 10400 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 10401 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
10402 | case '0': |
10403 | { | |
02aa26ce NT |
10404 | /* variables: |
10405 | u holds the "number so far" | |
4f19785b WSI |
10406 | shift the power of 2 of the base |
10407 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
10408 | overflowed was the number more than we can hold? |
10409 | ||
10410 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
10411 | we in octal/hex/binary?" indicator to disallow hex characters |
10412 | when in octal mode. | |
02aa26ce | 10413 | */ |
9e24b6e2 JH |
10414 | NV n = 0.0; |
10415 | UV u = 0; | |
79072805 | 10416 | I32 shift; |
9e24b6e2 | 10417 | bool overflowed = FALSE; |
8ded1040 | 10418 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
fe20fd30 JH |
10419 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
10420 | static const char* const bases[5] = | |
10421 | { "", "binary", "", "octal", "hexadecimal" }; | |
10422 | static const char* const Bases[5] = | |
10423 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
10424 | static const char* const maxima[5] = | |
10425 | { "", | |
10426 | "0b11111111111111111111111111111111", | |
10427 | "", | |
10428 | "037777777777", | |
10429 | "0xffffffff" }; | |
a00f3e00 | 10430 | const char *base, *Base, *max; |
378cc40b | 10431 | |
02aa26ce | 10432 | /* check for hex */ |
378cc40b LW |
10433 | if (s[1] == 'x') { |
10434 | shift = 4; | |
10435 | s += 2; | |
8ded1040 | 10436 | just_zero = FALSE; |
4f19785b WSI |
10437 | } else if (s[1] == 'b') { |
10438 | shift = 1; | |
10439 | s += 2; | |
8ded1040 | 10440 | just_zero = FALSE; |
378cc40b | 10441 | } |
02aa26ce | 10442 | /* check for a decimal in disguise */ |
b78218b7 | 10443 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 10444 | goto decimal; |
02aa26ce | 10445 | /* so it must be octal */ |
928753ea | 10446 | else { |
378cc40b | 10447 | shift = 3; |
928753ea JH |
10448 | s++; |
10449 | } | |
10450 | ||
10451 | if (*s == '_') { | |
10452 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10453 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10454 | "Misplaced _ in number"); |
10455 | lastub = s++; | |
10456 | } | |
9e24b6e2 JH |
10457 | |
10458 | base = bases[shift]; | |
10459 | Base = Bases[shift]; | |
10460 | max = maxima[shift]; | |
02aa26ce | 10461 | |
4f19785b | 10462 | /* read the rest of the number */ |
378cc40b | 10463 | for (;;) { |
9e24b6e2 | 10464 | /* x is used in the overflow test, |
893fe2c2 | 10465 | b is the digit we're adding on. */ |
9e24b6e2 | 10466 | UV x, b; |
55497cff | 10467 | |
378cc40b | 10468 | switch (*s) { |
02aa26ce NT |
10469 | |
10470 | /* if we don't mention it, we're done */ | |
378cc40b LW |
10471 | default: |
10472 | goto out; | |
02aa26ce | 10473 | |
928753ea | 10474 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 10475 | case '_': |
f5e9f069 | 10476 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 10477 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10478 | "Misplaced _ in number"); |
10479 | lastub = s++; | |
de3bb511 | 10480 | break; |
02aa26ce NT |
10481 | |
10482 | /* 8 and 9 are not octal */ | |
378cc40b | 10483 | case '8': case '9': |
4f19785b | 10484 | if (shift == 3) |
cea2e8a9 | 10485 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 10486 | /* FALL THROUGH */ |
02aa26ce NT |
10487 | |
10488 | /* octal digits */ | |
4f19785b | 10489 | case '2': case '3': case '4': |
378cc40b | 10490 | case '5': case '6': case '7': |
4f19785b | 10491 | if (shift == 1) |
cea2e8a9 | 10492 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
10493 | /* FALL THROUGH */ |
10494 | ||
10495 | case '0': case '1': | |
02aa26ce | 10496 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 10497 | goto digit; |
02aa26ce NT |
10498 | |
10499 | /* hex digits */ | |
378cc40b LW |
10500 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
10501 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 10502 | /* make sure they said 0x */ |
378cc40b LW |
10503 | if (shift != 4) |
10504 | goto out; | |
55497cff | 10505 | b = (*s++ & 7) + 9; |
02aa26ce NT |
10506 | |
10507 | /* Prepare to put the digit we have onto the end | |
10508 | of the number so far. We check for overflows. | |
10509 | */ | |
10510 | ||
55497cff | 10511 | digit: |
8ded1040 | 10512 | just_zero = FALSE; |
9e24b6e2 JH |
10513 | if (!overflowed) { |
10514 | x = u << shift; /* make room for the digit */ | |
10515 | ||
10516 | if ((x >> shift) != u | |
10517 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
10518 | overflowed = TRUE; |
10519 | n = (NV) u; | |
767a6a26 | 10520 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 10521 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
10522 | "Integer overflow in %s number", |
10523 | base); | |
10524 | } else | |
10525 | u = x | b; /* add the digit to the end */ | |
10526 | } | |
10527 | if (overflowed) { | |
10528 | n *= nvshift[shift]; | |
10529 | /* If an NV has not enough bits in its | |
10530 | * mantissa to represent an UV this summing of | |
10531 | * small low-order numbers is a waste of time | |
10532 | * (because the NV cannot preserve the | |
10533 | * low-order bits anyway): we could just | |
10534 | * remember when did we overflow and in the | |
10535 | * end just multiply n by the right | |
10536 | * amount. */ | |
10537 | n += (NV) b; | |
55497cff | 10538 | } |
378cc40b LW |
10539 | break; |
10540 | } | |
10541 | } | |
02aa26ce NT |
10542 | |
10543 | /* if we get here, we had success: make a scalar value from | |
10544 | the number. | |
10545 | */ | |
378cc40b | 10546 | out: |
928753ea JH |
10547 | |
10548 | /* final misplaced underbar check */ | |
10549 | if (s[-1] == '_') { | |
10550 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10551 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
10552 | } |
10553 | ||
133cdda0 | 10554 | sv = newSV(0); |
9e24b6e2 | 10555 | if (overflowed) { |
f5e9f069 | 10556 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 10557 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
10558 | "%s number > %s non-portable", |
10559 | Base, max); | |
10560 | sv_setnv(sv, n); | |
10561 | } | |
10562 | else { | |
15041a67 | 10563 | #if UVSIZE > 4 |
f5e9f069 | 10564 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 10565 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
10566 | "%s number > %s non-portable", |
10567 | Base, max); | |
2cc4c2dc | 10568 | #endif |
9e24b6e2 JH |
10569 | sv_setuv(sv, u); |
10570 | } | |
8ded1040 | 10571 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
a00f3e00 | 10572 | sv = new_constant(start, s - start, "integer", |
0e2d6244 | 10573 | sv, NULL, NULL); |
8ded1040 | 10574 | else if (PL_hints & HINT_NEW_BINARY) |
0e2d6244 | 10575 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
10576 | } |
10577 | break; | |
02aa26ce NT |
10578 | |
10579 | /* | |
10580 | handle decimal numbers. | |
10581 | we're also sent here when we read a 0 as the first digit | |
10582 | */ | |
378cc40b LW |
10583 | case '1': case '2': case '3': case '4': case '5': |
10584 | case '6': case '7': case '8': case '9': case '.': | |
10585 | decimal: | |
3280af22 NIS |
10586 | d = PL_tokenbuf; |
10587 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 10588 | floatit = FALSE; |
02aa26ce NT |
10589 | |
10590 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 10591 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 10592 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
10593 | if -w is on |
10594 | */ | |
93a17b20 | 10595 | if (*s == '_') { |
f5e9f069 | 10596 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 10597 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10598 | "Misplaced _ in number"); |
10599 | lastub = s++; | |
93a17b20 | 10600 | } |
fc36a67e | 10601 | else { |
02aa26ce | 10602 | /* check for end of fixed-length buffer */ |
fc36a67e | 10603 | if (d >= e) |
cea2e8a9 | 10604 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 10605 | /* if we're ok, copy the character */ |
378cc40b | 10606 | *d++ = *s++; |
fc36a67e | 10607 | } |
378cc40b | 10608 | } |
02aa26ce NT |
10609 | |
10610 | /* final misplaced underbar check */ | |
928753ea | 10611 | if (lastub && s == lastub + 1) { |
d008e5eb | 10612 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 10613 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 10614 | } |
02aa26ce NT |
10615 | |
10616 | /* read a decimal portion if there is one. avoid | |
10617 | 3..5 being interpreted as the number 3. followed | |
10618 | by .5 | |
10619 | */ | |
2f3197b3 | 10620 | if (*s == '.' && s[1] != '.') { |
79072805 | 10621 | floatit = TRUE; |
378cc40b | 10622 | *d++ = *s++; |
02aa26ce | 10623 | |
928753ea JH |
10624 | if (*s == '_') { |
10625 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10626 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10627 | "Misplaced _ in number"); |
10628 | lastub = s; | |
10629 | } | |
10630 | ||
10631 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 10632 | */ |
fc36a67e | 10633 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 10634 | /* fixed length buffer check */ |
fc36a67e | 10635 | if (d >= e) |
cea2e8a9 | 10636 | Perl_croak(aTHX_ number_too_long); |
928753ea | 10637 | if (*s == '_') { |
f5e9f069 | 10638 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 10639 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10640 | "Misplaced _ in number"); |
10641 | lastub = s; | |
10642 | } | |
10643 | else | |
fc36a67e | 10644 | *d++ = *s; |
378cc40b | 10645 | } |
928753ea JH |
10646 | /* fractional part ending in underbar? */ |
10647 | if (s[-1] == '_') { | |
10648 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10649 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10650 | "Misplaced _ in number"); |
10651 | } | |
dd629d5b GS |
10652 | if (*s == '.' && isDIGIT(s[1])) { |
10653 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 10654 | s = start; |
dd629d5b GS |
10655 | goto vstring; |
10656 | } | |
378cc40b | 10657 | } |
02aa26ce NT |
10658 | |
10659 | /* read exponent part, if present */ | |
3c71ae1e | 10660 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
10661 | floatit = TRUE; |
10662 | s++; | |
02aa26ce NT |
10663 | |
10664 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 10665 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 10666 | |
7fd134d9 JH |
10667 | /* stray preinitial _ */ |
10668 | if (*s == '_') { | |
10669 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10670 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
10671 | "Misplaced _ in number"); |
10672 | lastub = s++; | |
10673 | } | |
10674 | ||
02aa26ce | 10675 | /* allow positive or negative exponent */ |
378cc40b LW |
10676 | if (*s == '+' || *s == '-') |
10677 | *d++ = *s++; | |
02aa26ce | 10678 | |
7fd134d9 JH |
10679 | /* stray initial _ */ |
10680 | if (*s == '_') { | |
10681 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10682 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
10683 | "Misplaced _ in number"); |
10684 | lastub = s++; | |
10685 | } | |
10686 | ||
7fd134d9 JH |
10687 | /* read digits of exponent */ |
10688 | while (isDIGIT(*s) || *s == '_') { | |
10689 | if (isDIGIT(*s)) { | |
10690 | if (d >= e) | |
10691 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 10692 | *d++ = *s++; |
7fd134d9 JH |
10693 | } |
10694 | else { | |
f5e9f069 NC |
10695 | if (((lastub && s == lastub + 1) || |
10696 | (!isDIGIT(s[1]) && s[1] != '_')) | |
10697 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 10698 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 10699 | "Misplaced _ in number"); |
b3b48e3e | 10700 | lastub = s++; |
7fd134d9 | 10701 | } |
7fd134d9 | 10702 | } |
378cc40b | 10703 | } |
02aa26ce | 10704 | |
02aa26ce NT |
10705 | |
10706 | /* make an sv from the string */ | |
133cdda0 | 10707 | sv = newSV(0); |
097ee67d | 10708 | |
0b7fceb9 | 10709 | /* |
58bb9ec3 NC |
10710 | We try to do an integer conversion first if no characters |
10711 | indicating "float" have been found. | |
0b7fceb9 MU |
10712 | */ |
10713 | ||
10714 | if (!floatit) { | |
58bb9ec3 | 10715 | UV uv; |
8916b559 | 10716 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
10717 | |
10718 | if (flags == IS_NUMBER_IN_UV) { | |
10719 | if (uv <= IV_MAX) | |
86554af2 | 10720 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 10721 | else |
c239479b | 10722 | sv_setuv(sv, uv); |
58bb9ec3 NC |
10723 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
10724 | if (uv <= (UV) IV_MIN) | |
10725 | sv_setiv(sv, -(IV)uv); | |
10726 | else | |
10727 | floatit = TRUE; | |
10728 | } else | |
10729 | floatit = TRUE; | |
10730 | } | |
0b7fceb9 | 10731 | if (floatit) { |
58bb9ec3 NC |
10732 | /* terminate the string */ |
10733 | *d = '\0'; | |
86554af2 JH |
10734 | nv = Atof(PL_tokenbuf); |
10735 | sv_setnv(sv, nv); | |
10736 | } | |
86554af2 | 10737 | |
b8403495 JH |
10738 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
10739 | (PL_hints & HINT_NEW_INTEGER) ) | |
d2ae4405 JH |
10740 | sv = new_constant(PL_tokenbuf, |
10741 | d - PL_tokenbuf, | |
10742 | (const char *) | |
b8403495 | 10743 | (floatit ? "float" : "integer"), |
0e2d6244 | 10744 | sv, NULL, NULL); |
378cc40b | 10745 | break; |
0b7fceb9 | 10746 | |
e312add1 | 10747 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 10748 | case 'v': |
dd629d5b | 10749 | vstring: |
133cdda0 | 10750 | sv = newSV(5); /* preallocate storage space */ |
ac0d7cc5 | 10751 | s = scan_vstring((char *)s,sv); |
33426ec1 JH |
10752 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
10753 | "### Saw v-string before '%s'\n", s); | |
10754 | } ); | |
a7cb1f99 | 10755 | break; |
79072805 | 10756 | } |
a687059c | 10757 | |
02aa26ce NT |
10758 | /* make the op for the constant and return */ |
10759 | ||
a86a20aa | 10760 | if (sv) |
b73d6f50 | 10761 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 10762 | else |
5900599a | 10763 | lvalp->opval = NULL; |
a687059c | 10764 | |
e2b56717 | 10765 | return (char *)s; |
378cc40b LW |
10766 | } |
10767 | ||
76e3520e | 10768 | STATIC char * |
cea2e8a9 | 10769 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 10770 | { |
79072805 | 10771 | register char *eol; |
378cc40b | 10772 | register char *t; |
8916b559 | 10773 | SV * const stuff = newSVpvs(""); |
79072805 | 10774 | bool needargs = FALSE; |
9dea3e30 | 10775 | bool eofmt = FALSE; |
378cc40b | 10776 | |
79072805 | 10777 | while (!needargs) { |
6a1959a6 | 10778 | if (*s == '.') { |
8e7b0921 | 10779 | t = s+1; |
51882d45 | 10780 | #ifdef PERL_STRICT_CR |
8e7b0921 AL |
10781 | while (SPACE_OR_TAB(*t)) |
10782 | t++; | |
51882d45 | 10783 | #else |
8e7b0921 AL |
10784 | while (SPACE_OR_TAB(*t) || *t == '\r') |
10785 | t++; | |
51882d45 | 10786 | #endif |
9dea3e30 WL |
10787 | if (*t == '\n' || t == PL_bufend) { |
10788 | eofmt = TRUE; | |
79072805 | 10789 | break; |
9dea3e30 | 10790 | } |
79072805 | 10791 | } |
3280af22 | 10792 | if (PL_in_eval && !PL_rsfp) { |
206b424e | 10793 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 10794 | if (!eol++) |
3280af22 | 10795 | eol = PL_bufend; |
0f85fab0 LW |
10796 | } |
10797 | else | |
3280af22 | 10798 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 10799 | if (*s != '#') { |
a0d0e21e LW |
10800 | for (t = s; t < eol; t++) { |
10801 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
10802 | needargs = FALSE; | |
10803 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 10804 | } |
a0d0e21e LW |
10805 | if (*t == '@' || *t == '^') |
10806 | needargs = TRUE; | |
378cc40b | 10807 | } |
7121b347 MG |
10808 | if (eol > s) { |
10809 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 10810 | #ifndef PERL_STRICT_CR |
7121b347 MG |
10811 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
10812 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
10813 | end[-2] = '\n'; | |
10814 | end[-1] = '\0'; | |
a8dc4fe8 | 10815 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 10816 | } |
2dc4c65b | 10817 | #endif |
7121b347 MG |
10818 | } |
10819 | else | |
10820 | break; | |
79072805 | 10821 | } |
5e7e76a3 | 10822 | s = (char*)eol; |
3280af22 NIS |
10823 | if (PL_rsfp) { |
10824 | s = filter_gets(PL_linestr, PL_rsfp, 0); | |
10825 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
10826 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
0e2d6244 | 10827 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 10828 | if (!s) { |
3280af22 | 10829 | s = PL_bufptr; |
378cc40b LW |
10830 | break; |
10831 | } | |
378cc40b | 10832 | } |
463ee0b2 | 10833 | incline(s); |
79072805 | 10834 | } |
a0d0e21e LW |
10835 | enough: |
10836 | if (SvCUR(stuff)) { | |
3280af22 | 10837 | PL_expect = XTERM; |
79072805 | 10838 | if (needargs) { |
3280af22 | 10839 | PL_lex_state = LEX_NORMAL; |
fe656965 | 10840 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
10841 | force_next(','); |
10842 | } | |
a0d0e21e | 10843 | else |
3280af22 | 10844 | PL_lex_state = LEX_FORMLINE; |
d2aaa77e | 10845 | if (!IN_BYTES) { |
5e7e76a3 | 10846 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
d2aaa77e JH |
10847 | SvUTF8_on(stuff); |
10848 | else if (PL_encoding) | |
10849 | sv_recode_to_utf8(stuff, PL_encoding); | |
10850 | } | |
fe656965 | 10851 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 10852 | force_next(THING); |
fe656965 | 10853 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 10854 | force_next(LSTOP); |
378cc40b | 10855 | } |
79072805 | 10856 | else { |
8990e307 | 10857 | SvREFCNT_dec(stuff); |
9dea3e30 WL |
10858 | if (eofmt) |
10859 | PL_lex_formbrack = 0; | |
3280af22 | 10860 | PL_bufptr = s; |
79072805 LW |
10861 | } |
10862 | return s; | |
378cc40b | 10863 | } |
a687059c | 10864 | |
76e3520e | 10865 | STATIC void |
cea2e8a9 | 10866 | S_set_csh(pTHX) |
a687059c | 10867 | { |
ae986130 | 10868 | #ifdef CSH |
3280af22 NIS |
10869 | if (!PL_cshlen) |
10870 | PL_cshlen = strlen(PL_cshname); | |
5900599a NC |
10871 | #else |
10872 | #if defined(USE_ITHREADS) | |
1e7ed80e | 10873 | PERL_UNUSED_CONTEXT; |
5900599a | 10874 | #endif |
ae986130 | 10875 | #endif |
a687059c | 10876 | } |
463ee0b2 | 10877 | |
ba6d6ac9 | 10878 | I32 |
864dbfa3 | 10879 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 10880 | { |
8c18bf38 | 10881 | const I32 oldsavestack_ix = PL_savestack_ix; |
8916b559 | 10882 | CV* const outsidecv = PL_compcv; |
8990e307 | 10883 | |
3280af22 NIS |
10884 | if (PL_compcv) { |
10885 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 10886 | } |
7766f137 | 10887 | SAVEI32(PL_subline); |
3280af22 | 10888 | save_item(PL_subname); |
3280af22 | 10889 | SAVESPTR(PL_compcv); |
3280af22 | 10890 | |
133cdda0 | 10891 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
10892 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
10893 | CvFLAGS(PL_compcv) |= flags; | |
10894 | ||
57843af0 | 10895 | PL_subline = CopLINE(PL_curcop); |
9755d405 | 10896 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
be2d5e07 | 10897 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
d7afa7f5 | 10898 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
4d1ff10f | 10899 | #ifdef USE_5005THREADS |
533c011a NIS |
10900 | CvOWNER(PL_compcv) = 0; |
10901 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
10902 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
4d1ff10f | 10903 | #endif /* USE_5005THREADS */ |
748a9306 | 10904 | |
8990e307 LW |
10905 | return oldsavestack_ix; |
10906 | } | |
10907 | ||
084592ab CN |
10908 | #ifdef __SC__ |
10909 | #pragma segment Perl_yylex | |
10910 | #endif | |
8990e307 | 10911 | int |
864dbfa3 | 10912 | Perl_yywarn(pTHX_ char *s) |
8990e307 | 10913 | { |
faef0170 | 10914 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 10915 | yyerror(s); |
faef0170 | 10916 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 10917 | return 0; |
8990e307 LW |
10918 | } |
10919 | ||
10920 | int | |
864dbfa3 | 10921 | Perl_yyerror(pTHX_ char *s) |
463ee0b2 | 10922 | { |
a00f3e00 AL |
10923 | const char *where = NULL; |
10924 | const char *context = NULL; | |
68dc0745 | 10925 | int contlen = -1; |
46fc3d4c | 10926 | SV *msg; |
463ee0b2 | 10927 | |
3280af22 | 10928 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 10929 | where = "at EOF"; |
43e23f82 NC |
10930 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
10931 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
10932 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
10933 | /* |
10934 | Only for NetWare: | |
10935 | The code below is removed for NetWare because it abends/crashes on NetWare | |
10936 | when the script has error such as not having the closing quotes like: | |
10937 | if ($var eq "value) | |
10938 | Checking of white spaces is anyway done in NetWare code. | |
10939 | */ | |
10940 | #ifndef NETWARE | |
3280af22 NIS |
10941 | while (isSPACE(*PL_oldoldbufptr)) |
10942 | PL_oldoldbufptr++; | |
f355267c | 10943 | #endif |
3280af22 NIS |
10944 | context = PL_oldoldbufptr; |
10945 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 10946 | } |
43e23f82 NC |
10947 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
10948 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
10949 | /* |
10950 | Only for NetWare: | |
10951 | The code below is removed for NetWare because it abends/crashes on NetWare | |
10952 | when the script has error such as not having the closing quotes like: | |
10953 | if ($var eq "value) | |
10954 | Checking of white spaces is anyway done in NetWare code. | |
10955 | */ | |
10956 | #ifndef NETWARE | |
3280af22 NIS |
10957 | while (isSPACE(*PL_oldbufptr)) |
10958 | PL_oldbufptr++; | |
f355267c | 10959 | #endif |
3280af22 NIS |
10960 | context = PL_oldbufptr; |
10961 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
10962 | } |
10963 | else if (yychar > 255) | |
68dc0745 | 10964 | where = "next token ???"; |
cdfb297e GS |
10965 | #ifdef USE_PURE_BISON |
10966 | /* GNU Bison sets the value -2 */ | |
10967 | else if (yychar == -2) { | |
10968 | #else | |
463ee0b2 | 10969 | else if ((yychar & 127) == 127) { |
cdfb297e | 10970 | #endif |
3280af22 NIS |
10971 | if (PL_lex_state == LEX_NORMAL || |
10972 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 10973 | where = "at end of line"; |
3280af22 | 10974 | else if (PL_lex_inpat) |
68dc0745 | 10975 | where = "within pattern"; |
463ee0b2 | 10976 | else |
68dc0745 | 10977 | where = "within string"; |
463ee0b2 | 10978 | } |
46fc3d4c | 10979 | else { |
8916b559 | 10980 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 10981 | if (yychar < 32) |
cea2e8a9 | 10982 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 10983 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 10984 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 10985 | else |
cea2e8a9 | 10986 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
5e7e76a3 | 10987 | where = SvPVX_const(where_sv); |
463ee0b2 | 10988 | } |
46fc3d4c | 10989 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 10990 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 10991 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 10992 | if (context) |
cea2e8a9 | 10993 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 10994 | else |
cea2e8a9 | 10995 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 10996 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 10997 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 10998 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 10999 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 11000 | PL_multi_end = 0; |
a0d0e21e | 11001 | } |
c77beb56 | 11002 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
f2139bd3 | 11003 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, (void*)msg); |
463ee0b2 | 11004 | else |
5a844595 | 11005 | qerror(msg); |
c7d6bfb2 GS |
11006 | if (PL_error_count >= 10) { |
11007 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 11008 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
f2139bd3 | 11009 | (void*)ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
11010 | else |
11011 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 11012 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 11013 | } |
3280af22 | 11014 | PL_in_my = 0; |
0e2d6244 | 11015 | PL_in_my_stash = NULL; |
463ee0b2 LW |
11016 | return 0; |
11017 | } | |
084592ab CN |
11018 | #ifdef __SC__ |
11019 | #pragma segment Main | |
11020 | #endif | |
4e35701f | 11021 | |
b250498f | 11022 | STATIC char* |
3ae08724 | 11023 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 11024 | { |
24c2fff4 | 11025 | const STRLEN slen = SvCUR(PL_linestr); |
92a78a40 | 11026 | switch (s[0]) { |
4e553d73 NIS |
11027 | case 0xFF: |
11028 | if (s[1] == 0xFE) { | |
92a78a40 | 11029 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 11030 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
92a78a40 | 11031 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 11032 | #ifndef PERL_NO_UTF16_FILTER |
92a78a40 | 11033 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 11034 | s += 2; |
92a78a40 | 11035 | utf16le: |
dea0fc0b JH |
11036 | if (PL_bufend > (char*)s) { |
11037 | U8 *news; | |
11038 | I32 newlen; | |
11039 | ||
11040 | filter_add(utf16rev_textfilter, NULL); | |
cd7a8267 | 11041 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
6dc97886 NC |
11042 | utf16_to_utf8_reversed(s, news, |
11043 | PL_bufend - (char*)s - 1, | |
11044 | &newlen); | |
92a78a40 | 11045 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 11046 | Safefree(news); |
92a78a40 JH |
11047 | SvUTF8_on(PL_linestr); |
11048 | s = (U8*)SvPVX(PL_linestr); | |
11049 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 11050 | } |
b250498f | 11051 | #else |
92a78a40 | 11052 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 11053 | #endif |
01ec43d0 GS |
11054 | } |
11055 | break; | |
78ae23f5 | 11056 | case 0xFE: |
92a78a40 | 11057 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 11058 | #ifndef PERL_NO_UTF16_FILTER |
92a78a40 | 11059 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 11060 | s += 2; |
92a78a40 | 11061 | utf16be: |
dea0fc0b JH |
11062 | if (PL_bufend > (char *)s) { |
11063 | U8 *news; | |
11064 | I32 newlen; | |
11065 | ||
11066 | filter_add(utf16_textfilter, NULL); | |
cd7a8267 | 11067 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
6dc97886 NC |
11068 | utf16_to_utf8(s, news, |
11069 | PL_bufend - (char*)s, | |
11070 | &newlen); | |
92a78a40 | 11071 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 11072 | Safefree(news); |
92a78a40 JH |
11073 | SvUTF8_on(PL_linestr); |
11074 | s = (U8*)SvPVX(PL_linestr); | |
11075 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 11076 | } |
b250498f | 11077 | #else |
92a78a40 | 11078 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 11079 | #endif |
01ec43d0 GS |
11080 | } |
11081 | break; | |
3ae08724 GS |
11082 | case 0xEF: |
11083 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
92a78a40 | 11084 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
11085 | s += 3; /* UTF-8 */ |
11086 | } | |
11087 | break; | |
11088 | case 0: | |
92a78a40 JH |
11089 | if (slen > 3) { |
11090 | if (s[1] == 0) { | |
11091 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
11092 | /* UTF-32 big-endian */ | |
11093 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
11094 | } | |
11095 | } | |
11096 | else if (s[2] == 0 && s[3] != 0) { | |
11097 | /* Leading bytes | |
11098 | * 00 xx 00 xx | |
11099 | * are a good indicator of UTF-16BE. */ | |
11100 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
11101 | goto utf16be; | |
11102 | } | |
01ec43d0 | 11103 | } |
209f66d7 NC |
11104 | #ifdef EBCDIC |
11105 | case 0xDD: | |
11106 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
11107 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
11108 | s += 4; /* UTF-8 */ | |
11109 | } | |
11110 | break; | |
11111 | #endif | |
11112 | ||
92a78a40 JH |
11113 | default: |
11114 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
11115 | /* Leading bytes | |
11116 | * xx 00 xx 00 | |
11117 | * are a good indicator of UTF-16LE. */ | |
11118 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
11119 | goto utf16le; | |
11120 | } | |
01ec43d0 | 11121 | } |
b8f84bb2 | 11122 | return (char*)s; |
b250498f | 11123 | } |
4755096e | 11124 | |
4755096e GS |
11125 | /* |
11126 | * restore_rsfp | |
11127 | * Restore a source filter. | |
11128 | */ | |
11129 | ||
11130 | static void | |
acfe0abc | 11131 | restore_rsfp(pTHX_ void *f) |
4755096e | 11132 | { |
8c89da26 | 11133 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
11134 | |
11135 | if (PL_rsfp == PerlIO_stdin()) | |
11136 | PerlIO_clearerr(PL_rsfp); | |
11137 | else if (PL_rsfp && (PL_rsfp != fp)) | |
11138 | PerlIO_close(PL_rsfp); | |
11139 | PL_rsfp = fp; | |
11140 | } | |
6e3aabd6 GS |
11141 | |
11142 | #ifndef PERL_NO_UTF16_FILTER | |
11143 | static I32 | |
acfe0abc | 11144 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 11145 | { |
24c2fff4 NC |
11146 | const STRLEN old = SvCUR(sv); |
11147 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
6dc97886 NC |
11148 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
11149 | "utf16_textfilter(%p): %d %d (%d)\n", | |
6d95986e NC |
11150 | FPTR2DPTR(void *, utf16_textfilter), |
11151 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
11152 | if (count) { |
11153 | U8* tmps; | |
dea0fc0b | 11154 | I32 newlen; |
cd7a8267 | 11155 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
5e7e76a3 SP |
11156 | Copy(SvPVX_const(sv), tmps, old, char); |
11157 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
6dc97886 NC |
11158 | SvCUR(sv) - old, &newlen); |
11159 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 11160 | } |
6dc97886 NC |
11161 | DEBUG_P({sv_dump(sv);}); |
11162 | return SvCUR(sv); | |
6e3aabd6 GS |
11163 | } |
11164 | ||
11165 | static I32 | |
acfe0abc | 11166 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 11167 | { |
24c2fff4 NC |
11168 | const STRLEN old = SvCUR(sv); |
11169 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
6dc97886 NC |
11170 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
11171 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
6d95986e NC |
11172 | FPTR2DPTR(void *, utf16rev_textfilter), |
11173 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
11174 | if (count) { |
11175 | U8* tmps; | |
dea0fc0b | 11176 | I32 newlen; |
cd7a8267 | 11177 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
5e7e76a3 SP |
11178 | Copy(SvPVX_const(sv), tmps, old, char); |
11179 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
6dc97886 NC |
11180 | SvCUR(sv) - old, &newlen); |
11181 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 11182 | } |
6dc97886 | 11183 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
11184 | return count; |
11185 | } | |
11186 | #endif | |
9f4817db | 11187 | |
faa4807d JP |
11188 | /* |
11189 | Returns a pointer to the next character after the parsed | |
11190 | vstring, as well as updating the passed in sv. | |
11191 | ||
11192 | Function must be called like | |
11193 | ||
133cdda0 | 11194 | sv = newSV(5); |
faa4807d JP |
11195 | s = scan_vstring(s,sv); |
11196 | ||
11197 | The sv should already be large enough to store the vstring | |
11198 | passed in, for performance reasons. | |
11199 | ||
11200 | */ | |
11201 | ||
11202 | char * | |
11203 | Perl_scan_vstring(pTHX_ char *s, SV *sv) | |
11204 | { | |
a00f3e00 AL |
11205 | const char *pos = s; |
11206 | const char *start = s; | |
37cd0abf | 11207 | if (*pos == 'v') pos++; /* get past 'v' */ |
bd4d542e JH |
11208 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
11209 | pos++; | |
faa4807d JP |
11210 | if ( *pos != '.') { |
11211 | /* this may not be a v-string if followed by => */ | |
a00f3e00 | 11212 | const char *next = pos; |
ac388100 JH |
11213 | while (next < PL_bufend && isSPACE(*next)) |
11214 | ++next; | |
11215 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
faa4807d JP |
11216 | /* return string not v-string */ |
11217 | sv_setpvn(sv,(char *)s,pos-s); | |
e2b56717 | 11218 | return (char *)pos; |
faa4807d JP |
11219 | } |
11220 | } | |
11221 | ||
11222 | if (!isALPHA(*pos)) { | |
a2a469f9 | 11223 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
faa4807d | 11224 | |
43b2f713 AL |
11225 | if (*s == 'v') |
11226 | s++; /* get past 'v' */ | |
faa4807d JP |
11227 | |
11228 | sv_setpvn(sv, "", 0); | |
11229 | ||
11230 | for (;;) { | |
43b2f713 | 11231 | /* this is atoi() that tolerates underscores */ |
8c89da26 AL |
11232 | U8 *tmpend; |
11233 | UV rev = 0; | |
43b2f713 AL |
11234 | const char *end = pos; |
11235 | UV mult = 1; | |
11236 | while (--end >= s) { | |
11237 | if (*end != '_') { | |
11238 | const UV orev = rev; | |
faa4807d JP |
11239 | rev += (*end - '0') * mult; |
11240 | mult *= 10; | |
11241 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
11242 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
11243 | "Integer overflow in decimal number"); | |
11244 | } | |
11245 | } | |
11246 | #ifdef EBCDIC | |
11247 | if (rev > 0x7FFFFFFF) | |
11248 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
11249 | #endif | |
11250 | /* Append native character for the rev point */ | |
11251 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
11252 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
11253 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
11254 | SvUTF8_on(sv); | |
bd4d542e | 11255 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
ac0d7cc5 | 11256 | s = (char *)++pos; |
faa4807d | 11257 | else { |
ac0d7cc5 | 11258 | s = (char *)pos; |
faa4807d JP |
11259 | break; |
11260 | } | |
bd4d542e | 11261 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
faa4807d JP |
11262 | pos++; |
11263 | } | |
11264 | SvPOK_on(sv); | |
11265 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
11266 | SvRMAGICAL_on(sv); | |
11267 | } | |
e2b56717 | 11268 | return (char *)s; |
faa4807d JP |
11269 | } |
11270 | ||
ea5389ca NC |
11271 | /* |
11272 | * Local variables: | |
11273 | * c-indentation-style: bsd | |
11274 | * c-basic-offset: 4 | |
11275 | * indent-tabs-mode: t | |
11276 | * End: | |
11277 | * | |
d8294a4d NC |
11278 | * ex: set ts=8 sts=4 sw=4 noet: |
11279 | */ |