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79072805 | 1 | /* $RCSfile: toke.c,v $$Revision: 4.1 $$Date: 92/08/07 18:28:39 $ |
a687059c | 2 | * |
d48672a2 | 3 | * Copyright (c) 1991, Larry Wall |
a687059c | 4 | * |
d48672a2 LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
378cc40b LW |
7 | * |
8 | * $Log: toke.c,v $ | |
79072805 | 9 | * Revision 4.1 92/08/07 18:28:39 lwall |
514dae0d | 10 | * |
faf8582f | 11 | * Revision 4.0.1.7 92/06/11 21:16:30 lwall |
79072805 | 12 | * patch34: expect incorrectly set to indicate start of program or block |
faf8582f | 13 | * |
2f3197b3 LW |
14 | * Revision 4.0.1.6 92/06/08 16:03:49 lwall |
15 | * patch20: an EXPR may now start with a bareword | |
16 | * patch20: print $fh EXPR can now expect term rather than operator in EXPR | |
17 | * patch20: added ... as variant on .. | |
18 | * patch20: new warning on spurious backslash | |
19 | * patch20: new warning on missing $ for foreach variable | |
20 | * patch20: "foo"x1024 now legal without space after x | |
21 | * patch20: new warning on print accidentally used as function | |
22 | * patch20: tr/stuff// wasn't working right | |
23 | * patch20: 2. now eats the dot | |
24 | * patch20: <@ARGV> now notices @ARGV | |
25 | * patch20: tr/// now lets you say \- | |
26 | * | |
988174c1 LW |
27 | * Revision 4.0.1.5 91/11/11 16:45:51 lwall |
28 | * patch19: default arg for shift was wrong after first subroutine definition | |
29 | * | |
de3bb511 LW |
30 | * Revision 4.0.1.4 91/11/05 19:02:48 lwall |
31 | * patch11: \x and \c were subject to double interpretation in regexps | |
32 | * patch11: prepared for ctype implementations that don't define isascii() | |
33 | * patch11: nested list operators could miscount parens | |
34 | * patch11: once-thru blocks didn't display right in the debugger | |
35 | * patch11: sort eval "whatever" didn't work | |
36 | * patch11: underscore is now allowed within literal octal and hex numbers | |
37 | * | |
1462b684 LW |
38 | * Revision 4.0.1.3 91/06/10 01:32:26 lwall |
39 | * patch10: m'$foo' now treats string as single quoted | |
40 | * patch10: certain pattern optimizations were botched | |
41 | * | |
d48672a2 LW |
42 | * Revision 4.0.1.2 91/06/07 12:05:56 lwall |
43 | * patch4: new copyright notice | |
44 | * patch4: debugger lost track of lines in eval | |
45 | * patch4: //o and s///o now optimize themselves fully at runtime | |
46 | * patch4: added global modifier for pattern matches | |
47 | * | |
35c8bce7 LW |
48 | * Revision 4.0.1.1 91/04/12 09:18:18 lwall |
49 | * patch1: perl -de "print" wouldn't stop at the first statement | |
50 | * | |
fe14fcc3 LW |
51 | * Revision 4.0 91/03/20 01:42:14 lwall |
52 | * 4.0 baseline. | |
378cc40b LW |
53 | * |
54 | */ | |
55 | ||
56 | #include "EXTERN.h" | |
57 | #include "perl.h" | |
58 | #include "perly.h" | |
59 | ||
2f3197b3 LW |
60 | static void set_csh(); |
61 | ||
79072805 LW |
62 | /* The following are arranged oddly so that the guard on the switch statement |
63 | * can get by with a single comparison (if the compiler is smart enough). | |
64 | */ | |
65 | ||
66 | #define LEX_NORMAL 8 | |
67 | #define LEX_INTERPNORMAL 7 | |
68 | #define LEX_INTERPCASEMOD 6 | |
69 | #define LEX_INTERPSTART 5 | |
70 | #define LEX_INTERPEND 4 | |
71 | #define LEX_INTERPENDMAYBE 3 | |
72 | #define LEX_INTERPCONCAT 2 | |
73 | #define LEX_INTERPCONST 1 | |
74 | #define LEX_KNOWNEXT 0 | |
75 | ||
76 | static U32 lex_state = LEX_NORMAL; /* next token is determined */ | |
77 | static U32 lex_defer; /* state after determined token */ | |
78 | static I32 lex_brackets; /* bracket count */ | |
79 | static I32 lex_fakebrack; /* outer bracket is mere delimiter */ | |
80 | static I32 lex_casemods; /* casemod count */ | |
81 | static I32 lex_dojoin; /* doing an array interpolation */ | |
82 | static I32 lex_starts; /* how many interps done on level */ | |
83 | static SV * lex_stuff; /* runtime pattern from m// or s/// */ | |
84 | static SV * lex_repl; /* runtime replacement from s/// */ | |
85 | static OP * lex_op; /* extra info to pass back on op */ | |
86 | static I32 lex_inpat; /* in pattern $) and $| are special */ | |
87 | static I32 lex_inwhat; /* what kind of quoting are we in */ | |
88 | ||
89 | /* What we know when we're in LEX_KNOWNEXT state. */ | |
90 | static YYSTYPE nextval[5]; /* value of next token, if any */ | |
91 | static I32 nexttype[5]; /* type of next token */ | |
92 | static I32 nexttoke = 0; | |
93 | ||
395c3793 LW |
94 | #ifdef I_FCNTL |
95 | #include <fcntl.h> | |
96 | #endif | |
fe14fcc3 LW |
97 | #ifdef I_SYS_FILE |
98 | #include <sys/file.h> | |
99 | #endif | |
395c3793 | 100 | |
79072805 LW |
101 | #ifdef ff_next |
102 | #undef ff_next | |
d48672a2 LW |
103 | #endif |
104 | ||
79072805 | 105 | #include "keywords.h" |
fe14fcc3 LW |
106 | |
107 | void checkcomma(); | |
a687059c | 108 | |
ae986130 LW |
109 | #ifdef CLINE |
110 | #undef CLINE | |
111 | #endif | |
79072805 | 112 | #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline)) |
378cc40b | 113 | |
2f3197b3 LW |
114 | #ifdef atarist |
115 | #define PERL_META(c) ((c) | 128) | |
116 | #else | |
a687059c | 117 | #define META(c) ((c) | 128) |
2f3197b3 | 118 | #endif |
a687059c | 119 | |
79072805 LW |
120 | #define TOKEN(retval) return (bufptr = s,(int)retval) |
121 | #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval) | |
122 | #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval) | |
123 | #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval) | |
124 | #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval) | |
125 | #define LOOPX(f) return(yylval.ival=f,expect = XOPERATOR,bufptr = s,(int)LOOPEX) | |
126 | #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP) | |
127 | #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0) | |
128 | #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1) | |
129 | #define BOop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP) | |
130 | #define BAop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP) | |
131 | #define SHop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP) | |
132 | #define PWop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP) | |
133 | #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP) | |
134 | #define Aop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP) | |
135 | #define Mop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP) | |
136 | #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP) | |
137 | #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP) | |
2f3197b3 | 138 | |
a687059c LW |
139 | /* This bit of chicanery makes a unary function followed by |
140 | * a parenthesis into a function with one argument, highest precedence. | |
141 | */ | |
2f3197b3 | 142 | #define UNI(f) return(yylval.ival = f, \ |
79072805 | 143 | expect = XTERM, \ |
2f3197b3 LW |
144 | bufptr = s, \ |
145 | last_uni = oldbufptr, \ | |
a687059c LW |
146 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
147 | ||
79072805 LW |
148 | #define UNIBRACK(f) return(yylval.ival = f, \ |
149 | bufptr = s, \ | |
150 | last_uni = oldbufptr, \ | |
151 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) | |
152 | ||
153 | /* This does similarly for list operators */ | |
154 | #define LOP(f) return(yylval.ival = f, \ | |
155 | CLINE, \ | |
156 | expect = XREF, \ | |
157 | bufptr = s, \ | |
158 | last_lop = oldbufptr, \ | |
159 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC : (int)LSTOP) ) | |
160 | ||
9f68db38 | 161 | /* grandfather return to old style */ |
79072805 LW |
162 | #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP) |
163 | ||
164 | #define SNARFWORD \ | |
165 | *d++ = *s++; \ | |
166 | while (s < bufend && isALNUM(*s)) \ | |
167 | *d++ = *s++; \ | |
168 | *d = '\0'; | |
169 | ||
170 | void | |
171 | reinit_lexer() | |
172 | { | |
173 | lex_state = LEX_NORMAL; | |
174 | lex_defer = 0; | |
175 | lex_brackets = 0; | |
176 | lex_fakebrack = 0; | |
177 | lex_casemods = 0; | |
178 | lex_dojoin = 0; | |
179 | lex_starts = 0; | |
180 | if (lex_stuff) | |
181 | sv_free(lex_stuff); | |
182 | lex_stuff = Nullsv; | |
183 | if (lex_repl) | |
184 | sv_free(lex_repl); | |
185 | lex_repl = Nullsv; | |
186 | lex_inpat = 0; | |
187 | lex_inwhat = 0; | |
188 | oldoldbufptr = oldbufptr = bufptr = SvPVn(linestr); | |
189 | bufend = bufptr + SvCUR(linestr); | |
93a17b20 LW |
190 | rs = "\n"; |
191 | rslen = 1; | |
192 | rschar = '\n'; | |
193 | rspara = 0; | |
79072805 | 194 | } |
a687059c LW |
195 | |
196 | char * | |
197 | skipspace(s) | |
198 | register char *s; | |
199 | { | |
de3bb511 | 200 | while (s < bufend && isSPACE(*s)) |
a687059c LW |
201 | s++; |
202 | return s; | |
203 | } | |
378cc40b | 204 | |
2f3197b3 LW |
205 | void |
206 | check_uni() { | |
207 | char *s; | |
208 | char ch; | |
209 | ||
210 | if (oldoldbufptr != last_uni) | |
211 | return; | |
212 | while (isSPACE(*last_uni)) | |
213 | last_uni++; | |
e334a159 | 214 | for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ; |
2f3197b3 LW |
215 | ch = *s; |
216 | *s = '\0'; | |
217 | warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni); | |
218 | *s = ch; | |
219 | } | |
220 | ||
ffed7fef LW |
221 | #ifdef CRIPPLED_CC |
222 | ||
223 | #undef UNI | |
224 | #undef LOP | |
225 | #define UNI(f) return uni(f,s) | |
226 | #define LOP(f) return lop(f,s) | |
227 | ||
228 | int | |
229 | uni(f,s) | |
79072805 | 230 | I32 f; |
ffed7fef LW |
231 | char *s; |
232 | { | |
233 | yylval.ival = f; | |
79072805 | 234 | expect = XTERM; |
ffed7fef | 235 | bufptr = s; |
2f3197b3 | 236 | last_uni = oldbufptr; |
ffed7fef LW |
237 | if (*s == '(') |
238 | return FUNC1; | |
239 | s = skipspace(s); | |
240 | if (*s == '(') | |
241 | return FUNC1; | |
242 | else | |
243 | return UNIOP; | |
244 | } | |
245 | ||
79072805 | 246 | I32 |
ffed7fef | 247 | lop(f,s) |
79072805 | 248 | I32 f; |
ffed7fef LW |
249 | char *s; |
250 | { | |
79072805 | 251 | yylval.ival = f; |
35c8bce7 | 252 | CLINE; |
79072805 LW |
253 | expect = XREF; |
254 | bufptr = s; | |
255 | last_uni = oldbufptr; | |
256 | if (*s == '(') | |
257 | return FUNC; | |
258 | s = skipspace(s); | |
259 | if (*s == '(') | |
260 | return FUNC; | |
261 | else | |
262 | return LSTOP; | |
263 | } | |
264 | ||
265 | #endif /* CRIPPLED_CC */ | |
266 | ||
267 | void | |
268 | force_next(type) | |
269 | I32 type; | |
270 | { | |
271 | nexttype[nexttoke] = type; | |
272 | nexttoke++; | |
273 | if (lex_state != LEX_KNOWNEXT) { | |
274 | lex_defer = lex_state; | |
275 | lex_state = LEX_KNOWNEXT; | |
276 | } | |
277 | } | |
278 | ||
279 | char * | |
280 | force_word(s,token) | |
281 | register char *s; | |
282 | int token; | |
283 | { | |
284 | register char *d; | |
285 | ||
286 | s = skipspace(s); | |
287 | if (isIDFIRST(*s) || *s == '\'') { | |
288 | d = tokenbuf; | |
289 | SNARFWORD; | |
290 | while (s < bufend && *s == '\'' && isIDFIRST(s[1])) { | |
291 | *d++ = *s++; | |
292 | SNARFWORD; | |
293 | } | |
294 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
295 | force_next(token); | |
296 | } | |
297 | return s; | |
298 | } | |
299 | ||
300 | void | |
301 | force_ident(s) | |
302 | register char *s; | |
303 | { | |
304 | if (s && *s) { | |
305 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); | |
306 | force_next(WORD); | |
307 | } | |
308 | } | |
309 | ||
310 | SV * | |
311 | q(sv) | |
312 | SV *sv; | |
313 | { | |
314 | register char *s; | |
315 | register char *send; | |
316 | register char *d; | |
317 | register char delim; | |
318 | ||
319 | if (!SvLEN(sv)) | |
320 | return sv; | |
321 | ||
322 | s = SvPVn(sv); | |
323 | send = s + SvCUR(sv); | |
324 | while (s < send && *s != '\\') | |
325 | s++; | |
326 | if (s == send) | |
327 | return sv; | |
328 | d = s; | |
329 | delim = SvSTORAGE(sv); | |
330 | while (s < send) { | |
331 | if (*s == '\\') { | |
332 | if (s + 1 < send && (s[1] == '\\' || s[1] == delim)) | |
333 | s++; /* all that, just for this */ | |
334 | } | |
335 | *d++ = *s++; | |
336 | } | |
337 | *d = '\0'; | |
338 | SvCUR_set(sv, d - SvPV(sv)); | |
339 | ||
340 | return sv; | |
341 | } | |
342 | ||
343 | I32 | |
344 | sublex_start() | |
345 | { | |
346 | register I32 op_type = yylval.ival; | |
347 | SV *sv; | |
348 | ||
349 | if (op_type == OP_NULL) { | |
350 | yylval.opval = lex_op; | |
351 | lex_op = Nullop; | |
352 | return THING; | |
353 | } | |
354 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
355 | yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff)); | |
356 | lex_stuff = Nullsv; | |
357 | return THING; | |
358 | } | |
359 | ||
360 | push_scope(); | |
361 | SAVEINT(lex_dojoin); | |
362 | SAVEINT(lex_brackets); | |
363 | SAVEINT(lex_fakebrack); | |
364 | SAVEINT(lex_casemods); | |
365 | SAVEINT(lex_starts); | |
366 | SAVEINT(lex_state); | |
367 | SAVEINT(lex_inpat); | |
368 | SAVEINT(lex_inwhat); | |
369 | SAVEINT(curcop->cop_line); | |
370 | SAVESPTR(bufptr); | |
371 | SAVESPTR(oldbufptr); | |
372 | SAVESPTR(oldoldbufptr); | |
373 | SAVESPTR(linestr); | |
374 | ||
375 | linestr = lex_stuff; | |
376 | lex_stuff = Nullsv; | |
377 | ||
378 | bufend = bufptr = oldbufptr = oldoldbufptr = SvPVn(linestr); | |
379 | bufend += SvCUR(linestr); | |
380 | ||
381 | lex_dojoin = FALSE; | |
382 | lex_brackets = 0; | |
383 | lex_fakebrack = 0; | |
384 | lex_casemods = 0; | |
385 | lex_starts = 0; | |
386 | lex_state = LEX_INTERPCONCAT; | |
387 | curcop->cop_line = multi_start; | |
388 | ||
389 | lex_inwhat = op_type; | |
390 | if (op_type == OP_MATCH || op_type == OP_SUBST) | |
391 | lex_inpat = op_type; | |
392 | else | |
393 | lex_inpat = 0; | |
394 | ||
395 | force_next('('); | |
396 | if (lex_op) { | |
397 | yylval.opval = lex_op; | |
398 | lex_op = Nullop; | |
399 | return PMFUNC; | |
400 | } | |
401 | else | |
402 | return FUNC; | |
403 | } | |
404 | ||
405 | I32 | |
406 | sublex_done() | |
407 | { | |
408 | if (!lex_starts++) { | |
409 | expect = XOPERATOR; | |
93a17b20 | 410 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0)); |
79072805 LW |
411 | return THING; |
412 | } | |
413 | ||
414 | if (lex_casemods) { /* oops, we've got some unbalanced parens */ | |
415 | lex_state = LEX_INTERPCASEMOD; | |
416 | return yylex(); | |
417 | } | |
418 | ||
419 | sv_free(linestr); | |
420 | /* Is there a right-hand side to take care of? */ | |
421 | if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) { | |
422 | linestr = lex_repl; | |
423 | lex_inpat = 0; | |
424 | bufend = bufptr = oldbufptr = oldoldbufptr = SvPVn(linestr); | |
425 | bufend += SvCUR(linestr); | |
426 | lex_dojoin = FALSE; | |
427 | lex_brackets = 0; | |
428 | lex_fakebrack = 0; | |
429 | lex_casemods = 0; | |
430 | lex_starts = 0; | |
431 | if (SvCOMPILED(lex_repl)) { | |
432 | lex_state = LEX_INTERPNORMAL; | |
433 | lex_starts++; | |
434 | } | |
435 | else | |
436 | lex_state = LEX_INTERPCONCAT; | |
437 | lex_repl = Nullsv; | |
438 | return ','; | |
ffed7fef LW |
439 | } |
440 | else { | |
79072805 LW |
441 | pop_scope(); |
442 | bufend = SvPVn(linestr); | |
443 | bufend += SvCUR(linestr); | |
444 | expect = XOPERATOR; | |
445 | return ')'; | |
ffed7fef LW |
446 | } |
447 | } | |
448 | ||
79072805 LW |
449 | char * |
450 | scan_const(start) | |
451 | char *start; | |
452 | { | |
453 | register char *send = bufend; | |
454 | SV *sv = NEWSV(93, send - start); | |
455 | register char *s = start; | |
456 | register char *d = SvPV(sv); | |
457 | char delim = SvSTORAGE(linestr); | |
458 | bool dorange = FALSE; | |
459 | I32 len; | |
460 | char *leave = | |
461 | lex_inpat | |
462 | ? "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}" | |
463 | : (lex_inwhat & OP_TRANS) | |
464 | ? "" | |
465 | : ""; | |
466 | ||
467 | while (s < send || dorange) { | |
468 | if (lex_inwhat == OP_TRANS) { | |
469 | if (dorange) { | |
470 | I32 i; | |
471 | I32 max; | |
472 | i = d - SvPV(sv); | |
473 | SvGROW(sv, SvLEN(sv) + 256); | |
474 | d = SvPV(sv) + i; | |
475 | d -= 2; | |
476 | max = d[1] & 0377; | |
477 | for (i = (*d & 0377); i <= max; i++) | |
478 | *d++ = i; | |
479 | dorange = FALSE; | |
480 | continue; | |
481 | } | |
482 | else if (*s == '-' && s+1 < send && s != start) { | |
483 | dorange = TRUE; | |
484 | s++; | |
485 | } | |
486 | } | |
487 | else if (*s == '@') | |
488 | break; | |
489 | else if (*s == '$') { | |
490 | if (!lex_inpat) /* not a regexp, so $ must be var */ | |
491 | break; | |
492 | if (s + 1 < send && s[1] != ')' && s[1] != '|') | |
493 | break; /* in regexp, $ might be tail anchor */ | |
494 | } | |
495 | if (*s == '\\' && s+1 < send) { | |
496 | s++; | |
497 | if (*s == delim) { | |
498 | *d++ = *s++; | |
499 | continue; | |
500 | } | |
93a17b20 | 501 | if (*s && strchr(leave, *s)) { |
79072805 LW |
502 | *d++ = '\\'; |
503 | *d++ = *s++; | |
504 | continue; | |
505 | } | |
506 | if (lex_inwhat == OP_SUBST && !lex_inpat && | |
507 | isDIGIT(*s) && !isDIGIT(s[1])) | |
508 | { | |
509 | *--s = '$'; | |
510 | break; | |
511 | } | |
93a17b20 | 512 | if (lex_inwhat != OP_TRANS && *s && strchr("lLuUE", *s)) { |
79072805 LW |
513 | --s; |
514 | break; | |
515 | } | |
516 | switch (*s) { | |
517 | case '-': | |
518 | if (lex_inwhat == OP_TRANS) { | |
519 | *d++ = *s++; | |
520 | continue; | |
521 | } | |
522 | /* FALL THROUGH */ | |
523 | default: | |
524 | *d++ = *s++; | |
525 | continue; | |
526 | case '0': case '1': case '2': case '3': | |
527 | case '4': case '5': case '6': case '7': | |
528 | *d++ = scan_oct(s, 3, &len); | |
529 | s += len; | |
530 | continue; | |
531 | case 'x': | |
532 | *d++ = scan_hex(++s, 2, &len); | |
533 | s += len; | |
534 | continue; | |
535 | case 'c': | |
536 | s++; | |
537 | *d = *s++; | |
538 | if (isLOWER(*d)) | |
539 | *d = toupper(*d); | |
540 | *d++ ^= 64; | |
541 | continue; | |
542 | case 'b': | |
543 | *d++ = '\b'; | |
544 | break; | |
545 | case 'n': | |
546 | *d++ = '\n'; | |
547 | break; | |
548 | case 'r': | |
549 | *d++ = '\r'; | |
550 | break; | |
551 | case 'f': | |
552 | *d++ = '\f'; | |
553 | break; | |
554 | case 't': | |
555 | *d++ = '\t'; | |
556 | break; | |
557 | case 'e': | |
558 | *d++ = '\033'; | |
559 | break; | |
560 | case 'a': | |
561 | *d++ = '\007'; | |
562 | break; | |
563 | } | |
564 | s++; | |
565 | continue; | |
566 | } | |
567 | *d++ = *s++; | |
568 | } | |
569 | *d = '\0'; | |
570 | SvCUR_set(sv, d - SvPV(sv)); | |
571 | SvPOK_on(sv); | |
572 | ||
573 | if (SvCUR(sv) + 5 < SvLEN(sv)) { | |
574 | SvLEN_set(sv, SvCUR(sv) + 1); | |
575 | Renew(SvPV(sv), SvLEN(sv), char); | |
576 | } | |
577 | if (s > bufptr) | |
578 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
579 | else | |
580 | sv_free(sv); | |
581 | return s; | |
582 | } | |
583 | ||
584 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ | |
585 | int | |
586 | intuit_more(s) | |
587 | register char *s; | |
588 | { | |
589 | if (lex_brackets) | |
590 | return TRUE; | |
591 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
592 | return TRUE; | |
593 | if (*s != '{' && *s != '[') | |
594 | return FALSE; | |
595 | if (!lex_inpat) | |
596 | return TRUE; | |
597 | ||
598 | /* In a pattern, so maybe we have {n,m}. */ | |
599 | if (*s == '{') { | |
600 | s++; | |
601 | if (!isDIGIT(*s)) | |
602 | return TRUE; | |
603 | while (isDIGIT(*s)) | |
604 | s++; | |
605 | if (*s == ',') | |
606 | s++; | |
607 | while (isDIGIT(*s)) | |
608 | s++; | |
609 | if (*s == '}') | |
610 | return FALSE; | |
611 | return TRUE; | |
612 | ||
613 | } | |
614 | ||
615 | /* On the other hand, maybe we have a character class */ | |
616 | ||
617 | s++; | |
618 | if (*s == ']' || *s == '^') | |
619 | return FALSE; | |
620 | else { | |
621 | int weight = 2; /* let's weigh the evidence */ | |
622 | char seen[256]; | |
623 | unsigned char un_char = 0, last_un_char; | |
93a17b20 | 624 | char *send = strchr(s,']'); |
79072805 LW |
625 | char tmpbuf[512]; |
626 | ||
627 | if (!send) /* has to be an expression */ | |
628 | return TRUE; | |
629 | ||
630 | Zero(seen,256,char); | |
631 | if (*s == '$') | |
632 | weight -= 3; | |
633 | else if (isDIGIT(*s)) { | |
634 | if (s[1] != ']') { | |
635 | if (isDIGIT(s[1]) && s[2] == ']') | |
636 | weight -= 10; | |
637 | } | |
638 | else | |
639 | weight -= 100; | |
640 | } | |
641 | for (; s < send; s++) { | |
642 | last_un_char = un_char; | |
643 | un_char = (unsigned char)*s; | |
644 | switch (*s) { | |
645 | case '@': | |
646 | case '&': | |
647 | case '$': | |
648 | weight -= seen[un_char] * 10; | |
649 | if (isALNUM(s[1])) { | |
650 | scan_ident(s,send,tmpbuf,FALSE); | |
651 | if (strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE)) | |
652 | weight -= 100; | |
653 | else | |
654 | weight -= 10; | |
655 | } | |
656 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
657 | strchr("[#!%*<>()-=",s[1])) { |
658 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
659 | weight -= 10; |
660 | else | |
661 | weight -= 1; | |
662 | } | |
663 | break; | |
664 | case '\\': | |
665 | un_char = 254; | |
666 | if (s[1]) { | |
93a17b20 | 667 | if (strchr("wds]",s[1])) |
79072805 LW |
668 | weight += 100; |
669 | else if (seen['\''] || seen['"']) | |
670 | weight += 1; | |
93a17b20 | 671 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
672 | weight += 40; |
673 | else if (isDIGIT(s[1])) { | |
674 | weight += 40; | |
675 | while (s[1] && isDIGIT(s[1])) | |
676 | s++; | |
677 | } | |
678 | } | |
679 | else | |
680 | weight += 100; | |
681 | break; | |
682 | case '-': | |
683 | if (s[1] == '\\') | |
684 | weight += 50; | |
93a17b20 | 685 | if (strchr("aA01! ",last_un_char)) |
79072805 | 686 | weight += 30; |
93a17b20 | 687 | if (strchr("zZ79~",s[1])) |
79072805 LW |
688 | weight += 30; |
689 | break; | |
690 | default: | |
93a17b20 | 691 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 LW |
692 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
693 | char *d = tmpbuf; | |
694 | while (isALPHA(*s)) | |
695 | *d++ = *s++; | |
696 | *d = '\0'; | |
697 | if (keyword(tmpbuf, d - tmpbuf)) | |
698 | weight -= 150; | |
699 | } | |
700 | if (un_char == last_un_char + 1) | |
701 | weight += 5; | |
702 | weight -= seen[un_char]; | |
703 | break; | |
704 | } | |
705 | seen[un_char]++; | |
706 | } | |
707 | if (weight >= 0) /* probably a character class */ | |
708 | return FALSE; | |
709 | } | |
710 | ||
711 | return TRUE; | |
712 | } | |
ffed7fef | 713 | |
2f3197b3 | 714 | int |
378cc40b LW |
715 | yylex() |
716 | { | |
79072805 | 717 | register char *s; |
378cc40b | 718 | register char *d; |
79072805 | 719 | register I32 tmp; |
a687059c LW |
720 | extern int yychar; /* last token */ |
721 | ||
79072805 LW |
722 | switch (lex_state) { |
723 | #ifdef COMMENTARY | |
724 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
725 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
726 | break; | |
727 | #endif | |
728 | ||
729 | case LEX_KNOWNEXT: | |
730 | nexttoke--; | |
731 | yylval = nextval[nexttoke]; | |
732 | if (!nexttoke) | |
733 | lex_state = lex_defer; | |
734 | return(nexttype[nexttoke]); | |
735 | ||
736 | case LEX_INTERPCASEMOD: | |
737 | #ifdef DEBUGGING | |
738 | if (bufptr != bufend && *bufptr != '\\') | |
739 | fatal("panic: INTERPCASEMOD"); | |
740 | #endif | |
741 | if (bufptr == bufend || bufptr[1] == 'E') { | |
742 | if (lex_casemods <= 1) { | |
743 | if (bufptr != bufend) | |
744 | bufptr += 2; | |
745 | lex_state = LEX_INTERPSTART; | |
746 | } | |
747 | if (lex_casemods) { | |
748 | --lex_casemods; | |
749 | return ')'; | |
750 | } | |
751 | return yylex(); | |
752 | } | |
753 | else { | |
754 | s = bufptr + 1; | |
755 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
756 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
757 | ++lex_casemods; | |
758 | lex_state = LEX_INTERPCONCAT; | |
759 | nextval[nexttoke].ival = 0; | |
760 | force_next('('); | |
761 | if (*s == 'l') | |
762 | nextval[nexttoke].ival = OP_LCFIRST; | |
763 | else if (*s == 'u') | |
764 | nextval[nexttoke].ival = OP_UCFIRST; | |
765 | else if (*s == 'L') | |
766 | nextval[nexttoke].ival = OP_LC; | |
767 | else if (*s == 'U') | |
768 | nextval[nexttoke].ival = OP_UC; | |
769 | else | |
770 | fatal("panic: yylex"); | |
771 | bufptr = s + 1; | |
772 | force_next(FUNC); | |
773 | if (lex_starts) { | |
774 | s = bufptr; | |
775 | Aop(OP_CONCAT); | |
776 | } | |
777 | else | |
778 | return yylex(); | |
779 | } | |
780 | ||
781 | case LEX_INTERPSTART: | |
782 | if (bufptr == bufend) | |
783 | return sublex_done(); | |
784 | expect = XTERM; | |
785 | lex_dojoin = (*bufptr == '@'); | |
786 | lex_state = LEX_INTERPNORMAL; | |
787 | if (lex_dojoin) { | |
788 | nextval[nexttoke].ival = 0; | |
789 | force_next(','); | |
790 | force_ident("\""); | |
791 | nextval[nexttoke].ival = 0; | |
792 | force_next('$'); | |
793 | nextval[nexttoke].ival = 0; | |
794 | force_next('('); | |
795 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ | |
796 | force_next(FUNC); | |
797 | } | |
798 | if (lex_starts++) { | |
799 | s = bufptr; | |
800 | Aop(OP_CONCAT); | |
801 | } | |
802 | else | |
803 | return yylex(); | |
804 | break; | |
805 | ||
806 | case LEX_INTERPENDMAYBE: | |
807 | if (intuit_more(bufptr)) { | |
808 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
809 | break; | |
810 | } | |
811 | /* FALL THROUGH */ | |
812 | ||
813 | case LEX_INTERPEND: | |
814 | if (lex_dojoin) { | |
815 | lex_dojoin = FALSE; | |
816 | lex_state = LEX_INTERPCONCAT; | |
817 | return ')'; | |
818 | } | |
819 | /* FALLTHROUGH */ | |
820 | case LEX_INTERPCONCAT: | |
821 | #ifdef DEBUGGING | |
822 | if (lex_brackets) | |
823 | fatal("panic: INTERPCONCAT"); | |
824 | #endif | |
825 | if (bufptr == bufend) | |
826 | return sublex_done(); | |
827 | ||
828 | if (SvSTORAGE(linestr) == '\'') { | |
829 | SV *sv = newSVsv(linestr); | |
830 | if (!lex_inpat) | |
831 | sv = q(sv); | |
832 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
833 | s = bufend; | |
834 | } | |
835 | else { | |
836 | s = scan_const(bufptr); | |
837 | if (*s == '\\') | |
838 | lex_state = LEX_INTERPCASEMOD; | |
839 | else | |
840 | lex_state = LEX_INTERPSTART; | |
841 | } | |
842 | ||
843 | if (s != bufptr) { | |
844 | nextval[nexttoke] = yylval; | |
845 | force_next(THING); | |
846 | if (lex_starts++) | |
847 | Aop(OP_CONCAT); | |
848 | else { | |
849 | bufptr = s; | |
850 | return yylex(); | |
851 | } | |
852 | } | |
853 | ||
854 | return yylex(); | |
855 | } | |
856 | ||
857 | s = bufptr; | |
a687059c LW |
858 | oldoldbufptr = oldbufptr; |
859 | oldbufptr = s; | |
378cc40b LW |
860 | |
861 | retry: | |
79072805 | 862 | DEBUG_p( { |
93a17b20 | 863 | if (strchr(s,'\n')) |
378cc40b LW |
864 | fprintf(stderr,"Tokener at %s",s); |
865 | else | |
866 | fprintf(stderr,"Tokener at %s\n",s); | |
79072805 | 867 | } ) |
e929a76b LW |
868 | #ifdef BADSWITCH |
869 | if (*s & 128) { | |
79072805 | 870 | if ((*s & 127) == '}') { |
2f3197b3 | 871 | *s++ = '}'; |
79072805 | 872 | TOKEN('}'); |
2f3197b3 | 873 | } |
e929a76b | 874 | else |
fe14fcc3 | 875 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
e929a76b LW |
876 | goto retry; |
877 | } | |
878 | #endif | |
378cc40b LW |
879 | switch (*s) { |
880 | default: | |
79072805 | 881 | if ((*s & 127) == '}') { |
2f3197b3 | 882 | *s++ = '}'; |
79072805 | 883 | TOKEN('}'); |
2f3197b3 | 884 | } |
a687059c | 885 | else |
fe14fcc3 | 886 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
378cc40b | 887 | goto retry; |
e929a76b LW |
888 | case 4: |
889 | case 26: | |
890 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 891 | case 0: |
378cc40b | 892 | if (!rsfp) |
79072805 | 893 | TOKEN(0); |
a687059c LW |
894 | if (s++ < bufend) |
895 | goto retry; /* ignore stray nulls */ | |
2f3197b3 | 896 | last_uni = 0; |
79072805 LW |
897 | last_lop = 0; |
898 | if (!preambled) { | |
899 | preambled = TRUE; | |
900 | sv_setpv(linestr,""); | |
901 | if (perldb) { | |
902 | char *pdb = getenv("PERLDB"); | |
903 | ||
93a17b20 | 904 | sv_catpv(linestr,"BEGIN{"); |
79072805 | 905 | sv_catpv(linestr, pdb ? pdb : "require 'perldb.pl'"); |
93a17b20 | 906 | sv_catpv(linestr, "}"); |
a687059c | 907 | } |
79072805 LW |
908 | if (minus_n || minus_p) { |
909 | sv_catpv(linestr, "LINE: while (<>) {"); | |
910 | if (minus_l) | |
911 | sv_catpv(linestr,"chop;"); | |
912 | if (minus_a) | |
913 | sv_catpv(linestr,"@F=split(' ');"); | |
914 | } | |
915 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); | |
916 | bufend = SvPV(linestr) + SvCUR(linestr); | |
917 | goto retry; | |
a687059c | 918 | } |
e929a76b LW |
919 | #ifdef CRYPTSCRIPT |
920 | cryptswitch(); | |
921 | #endif /* CRYPTSCRIPT */ | |
922 | do { | |
79072805 | 923 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) { |
e929a76b | 924 | fake_eof: |
395c3793 LW |
925 | if (rsfp) { |
926 | if (preprocess) | |
79072805 | 927 | (void)my_pclose(rsfp); |
de3bb511 | 928 | else if ((FILE*)rsfp == stdin) |
395c3793 LW |
929 | clearerr(stdin); |
930 | else | |
931 | (void)fclose(rsfp); | |
932 | rsfp = Nullfp; | |
933 | } | |
e929a76b | 934 | if (minus_n || minus_p) { |
79072805 LW |
935 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
936 | sv_catpv(linestr,";}"); | |
937 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); | |
938 | bufend = SvPV(linestr) + SvCUR(linestr); | |
e929a76b LW |
939 | minus_n = minus_p = 0; |
940 | goto retry; | |
941 | } | |
79072805 LW |
942 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); |
943 | sv_setpv(linestr,""); | |
944 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
378cc40b | 945 | } |
79072805 | 946 | if (doextract && *SvPV(linestr) == '#') |
e929a76b | 947 | doextract = FALSE; |
79072805 | 948 | curcop->cop_line++; |
e929a76b | 949 | } while (doextract); |
a687059c LW |
950 | oldoldbufptr = oldbufptr = bufptr = s; |
951 | if (perldb) { | |
79072805 | 952 | SV *sv = NEWSV(85,0); |
a687059c | 953 | |
93a17b20 | 954 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
955 | sv_setsv(sv,linestr); |
956 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
a687059c | 957 | } |
79072805 LW |
958 | bufend = SvPV(linestr) + SvCUR(linestr); |
959 | if (curcop->cop_line == 1) { | |
960 | while (s < bufend && isSPACE(*s)) | |
961 | s++; | |
962 | if (*s == ':') /* for csh's that have to exec sh scripts */ | |
963 | s++; | |
9f68db38 LW |
964 | if (*s == '#' && s[1] == '!') { |
965 | if (!in_eval && !instr(s,"perl") && instr(origargv[0],"perl")) { | |
966 | char **newargv; | |
967 | char *cmd; | |
968 | ||
969 | s += 2; | |
970 | if (*s == ' ') | |
971 | s++; | |
972 | cmd = s; | |
de3bb511 | 973 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
974 | s++; |
975 | *s++ = '\0'; | |
de3bb511 | 976 | while (s < bufend && isSPACE(*s)) |
9f68db38 LW |
977 | s++; |
978 | if (s < bufend) { | |
979 | Newz(899,newargv,origargc+3,char*); | |
980 | newargv[1] = s; | |
de3bb511 | 981 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
982 | s++; |
983 | *s = '\0'; | |
984 | Copy(origargv+1, newargv+2, origargc+1, char*); | |
985 | } | |
986 | else | |
987 | newargv = origargv; | |
988 | newargv[0] = cmd; | |
989 | execv(cmd,newargv); | |
990 | fatal("Can't exec %s", cmd); | |
991 | } | |
79072805 LW |
992 | if (d = instr(s, "perl -")) { |
993 | d += 6; | |
994 | /*SUPPRESS 530*/ | |
995 | while (d = moreswitches(d)) ; | |
996 | } | |
9f68db38 | 997 | } |
79072805 LW |
998 | } |
999 | if (in_format && lex_brackets <= 1) { | |
1000 | s = scan_formline(s); | |
1001 | if (!in_format) | |
1002 | goto rightbracket; | |
1003 | OPERATOR(';'); | |
ae986130 | 1004 | } |
378cc40b | 1005 | goto retry; |
fe14fcc3 | 1006 | case ' ': case '\t': case '\f': case '\r': case 013: |
378cc40b LW |
1007 | s++; |
1008 | goto retry; | |
378cc40b | 1009 | case '#': |
79072805 | 1010 | if (preprocess && s == SvPVn(linestr) && |
de3bb511 LW |
1011 | s[1] == ' ' && (isDIGIT(s[2]) || strnEQ(s+2,"line ",5)) ) { |
1012 | while (*s && !isDIGIT(*s)) | |
1013 | s++; | |
79072805 | 1014 | curcop->cop_line = atoi(s)-1; |
de3bb511 LW |
1015 | while (isDIGIT(*s)) |
1016 | s++; | |
79072805 | 1017 | s = skipspace(s); |
378cc40b LW |
1018 | s[strlen(s)-1] = '\0'; /* wipe out newline */ |
1019 | if (*s == '"') { | |
1020 | s++; | |
1021 | s[strlen(s)-1] = '\0'; /* wipe out trailing quote */ | |
1022 | } | |
1023 | if (*s) | |
79072805 | 1024 | curcop->cop_filegv = gv_fetchfile(s); |
378cc40b | 1025 | else |
79072805 LW |
1026 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1027 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); | |
378cc40b | 1028 | } |
e929a76b LW |
1029 | /* FALL THROUGH */ |
1030 | case '\n': | |
79072805 | 1031 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c LW |
1032 | d = bufend; |
1033 | while (s < d && *s != '\n') | |
378cc40b | 1034 | s++; |
0f85fab0 | 1035 | if (s < d) |
378cc40b | 1036 | s++; |
79072805 LW |
1037 | curcop->cop_line++; |
1038 | if (in_format && lex_brackets <= 1) { | |
1039 | s = scan_formline(s); | |
1040 | if (!in_format) | |
1041 | goto rightbracket; | |
1042 | OPERATOR(';'); | |
a687059c | 1043 | } |
378cc40b | 1044 | } |
a687059c | 1045 | else { |
378cc40b | 1046 | *s = '\0'; |
a687059c LW |
1047 | bufend = s; |
1048 | } | |
378cc40b LW |
1049 | goto retry; |
1050 | case '-': | |
79072805 | 1051 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b | 1052 | s++; |
e334a159 | 1053 | last_uni = oldbufptr; |
378cc40b | 1054 | switch (*s++) { |
79072805 LW |
1055 | case 'r': FTST(OP_FTEREAD); |
1056 | case 'w': FTST(OP_FTEWRITE); | |
1057 | case 'x': FTST(OP_FTEEXEC); | |
1058 | case 'o': FTST(OP_FTEOWNED); | |
1059 | case 'R': FTST(OP_FTRREAD); | |
1060 | case 'W': FTST(OP_FTRWRITE); | |
1061 | case 'X': FTST(OP_FTREXEC); | |
1062 | case 'O': FTST(OP_FTROWNED); | |
1063 | case 'e': FTST(OP_FTIS); | |
1064 | case 'z': FTST(OP_FTZERO); | |
1065 | case 's': FTST(OP_FTSIZE); | |
1066 | case 'f': FTST(OP_FTFILE); | |
1067 | case 'd': FTST(OP_FTDIR); | |
1068 | case 'l': FTST(OP_FTLINK); | |
1069 | case 'p': FTST(OP_FTPIPE); | |
1070 | case 'S': FTST(OP_FTSOCK); | |
1071 | case 'u': FTST(OP_FTSUID); | |
1072 | case 'g': FTST(OP_FTSGID); | |
1073 | case 'k': FTST(OP_FTSVTX); | |
1074 | case 'b': FTST(OP_FTBLK); | |
1075 | case 'c': FTST(OP_FTCHR); | |
1076 | case 't': FTST(OP_FTTTY); | |
1077 | case 'T': FTST(OP_FTTEXT); | |
1078 | case 'B': FTST(OP_FTBINARY); | |
1079 | case 'M': gv_fetchpv("\024",TRUE); FTST(OP_FTMTIME); | |
1080 | case 'A': gv_fetchpv("\024",TRUE); FTST(OP_FTATIME); | |
1081 | case 'C': gv_fetchpv("\024",TRUE); FTST(OP_FTCTIME); | |
378cc40b LW |
1082 | default: |
1083 | s -= 2; | |
1084 | break; | |
1085 | } | |
1086 | } | |
a687059c LW |
1087 | tmp = *s++; |
1088 | if (*s == tmp) { | |
1089 | s++; | |
79072805 LW |
1090 | if (expect == XOPERATOR) |
1091 | TERM(POSTDEC); | |
1092 | else | |
1093 | OPERATOR(PREDEC); | |
1094 | } | |
1095 | else if (*s == '>') { | |
1096 | s++; | |
1097 | s = skipspace(s); | |
1098 | if (isIDFIRST(*s)) { | |
1099 | /*SUPPRESS 530*/ | |
1100 | for (d = s; isALNUM(*d); d++) ; | |
1101 | strncpy(tokenbuf,s,d-s); | |
1102 | tokenbuf[d-s] = '\0'; | |
1103 | if (!keyword(tokenbuf, d - s)) | |
1104 | s = force_word(s,METHOD); | |
1105 | } | |
1106 | PREBLOCK(ARROW); | |
a687059c | 1107 | } |
79072805 LW |
1108 | if (expect == XOPERATOR) |
1109 | Aop(OP_SUBTRACT); | |
1110 | else { | |
2f3197b3 LW |
1111 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1112 | check_uni(); | |
79072805 | 1113 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 1114 | } |
79072805 | 1115 | |
378cc40b | 1116 | case '+': |
a687059c LW |
1117 | tmp = *s++; |
1118 | if (*s == tmp) { | |
378cc40b | 1119 | s++; |
79072805 LW |
1120 | if (expect == XOPERATOR) |
1121 | TERM(POSTINC); | |
1122 | else | |
1123 | OPERATOR(PREINC); | |
378cc40b | 1124 | } |
79072805 LW |
1125 | if (expect == XOPERATOR) |
1126 | Aop(OP_ADD); | |
1127 | else { | |
2f3197b3 LW |
1128 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1129 | check_uni(); | |
a687059c | 1130 | OPERATOR('+'); |
2f3197b3 | 1131 | } |
a687059c | 1132 | |
378cc40b | 1133 | case '*': |
79072805 LW |
1134 | if (expect != XOPERATOR) { |
1135 | s = scan_ident(s, bufend, tokenbuf, TRUE); | |
1136 | force_ident(tokenbuf); | |
1137 | TERM('*'); | |
a687059c | 1138 | } |
79072805 LW |
1139 | s++; |
1140 | if (*s == '*') { | |
a687059c | 1141 | s++; |
79072805 | 1142 | PWop(OP_POW); |
a687059c | 1143 | } |
79072805 LW |
1144 | Mop(OP_MULTIPLY); |
1145 | ||
378cc40b | 1146 | case '%': |
79072805 | 1147 | if (expect != XOPERATOR) { |
93a17b20 LW |
1148 | s = scan_ident(s, bufend, tokenbuf + 1, TRUE); |
1149 | if (tokenbuf[1]) { | |
1150 | tokenbuf[0] = '%'; | |
1151 | if (in_my) { | |
1152 | if (strchr(tokenbuf,'\'')) | |
1153 | fatal("\"my\" variable %s can't be in a package",tokenbuf); | |
1154 | nextval[nexttoke].opval = newOP(OP_PADHV, 0); | |
1155 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); | |
1156 | force_next(PRIVATEREF); | |
1157 | TERM('%'); | |
1158 | } | |
1159 | if (!strchr(tokenbuf,'\'')) { | |
1160 | if (tmp = pad_findmy(tokenbuf)) { | |
1161 | nextval[nexttoke].opval = newOP(OP_PADHV, 0); | |
1162 | nextval[nexttoke].opval->op_targ = tmp; | |
1163 | force_next(PRIVATEREF); | |
1164 | TERM('%'); | |
1165 | } | |
1166 | } | |
1167 | force_ident(tokenbuf + 1); | |
1168 | } | |
1169 | else | |
1170 | PREREF('%'); | |
79072805 | 1171 | TERM('%'); |
a687059c | 1172 | } |
79072805 LW |
1173 | ++s; |
1174 | Mop(OP_MODULO); | |
a687059c | 1175 | |
378cc40b | 1176 | case '^': |
79072805 LW |
1177 | s++; |
1178 | BOop(OP_XOR); | |
1179 | case '[': | |
1180 | lex_brackets++; | |
1181 | /* FALL THROUGH */ | |
378cc40b LW |
1182 | case '~': |
1183 | case '(': | |
1184 | case ',': | |
1185 | case ':': | |
378cc40b LW |
1186 | tmp = *s++; |
1187 | OPERATOR(tmp); | |
378cc40b | 1188 | case ';': |
79072805 LW |
1189 | if (curcop->cop_line < copline) |
1190 | copline = curcop->cop_line; | |
378cc40b LW |
1191 | tmp = *s++; |
1192 | OPERATOR(tmp); | |
1193 | case ')': | |
378cc40b LW |
1194 | tmp = *s++; |
1195 | TERM(tmp); | |
79072805 LW |
1196 | case ']': |
1197 | s++; | |
1198 | if (lex_state == LEX_INTERPNORMAL) { | |
1199 | if (--lex_brackets == 0) { | |
1200 | if (*s != '-' || s[1] != '>') | |
1201 | lex_state = LEX_INTERPEND; | |
1202 | } | |
1203 | } | |
1204 | TOKEN(']'); | |
1205 | case '{': | |
1206 | leftbracket: | |
1207 | if (in_format == 2) | |
1208 | in_format = 0; | |
1209 | s++; | |
1210 | lex_brackets++; | |
1211 | if (expect == XTERM) | |
1212 | OPERATOR(HASHBRACK); | |
93a17b20 LW |
1213 | else if (expect == XREF) |
1214 | expect = XTERM; | |
1215 | else | |
1216 | expect = XBLOCK; | |
79072805 LW |
1217 | yylval.ival = curcop->cop_line; |
1218 | if (isSPACE(*s) || *s == '#') | |
1219 | copline = NOLINE; /* invalidate current command line number */ | |
79072805 | 1220 | TOKEN('{'); |
378cc40b | 1221 | case '}': |
79072805 LW |
1222 | rightbracket: |
1223 | s++; | |
1224 | if (lex_state == LEX_INTERPNORMAL) { | |
1225 | if (--lex_brackets == 0) { | |
1226 | if (lex_fakebrack) { | |
1227 | lex_state = LEX_INTERPEND; | |
1228 | bufptr = s; | |
1229 | return yylex(); /* ignore fake brackets */ | |
1230 | } | |
1231 | if (*s != '-' || s[1] != '>') | |
1232 | lex_state = LEX_INTERPEND; | |
1233 | } | |
1234 | } | |
1235 | force_next('}'); | |
1236 | TOKEN(';'); | |
378cc40b LW |
1237 | case '&': |
1238 | s++; | |
1239 | tmp = *s++; | |
1240 | if (tmp == '&') | |
1241 | OPERATOR(ANDAND); | |
1242 | s--; | |
79072805 LW |
1243 | if (expect == XOPERATOR) |
1244 | BAop(OP_BIT_AND); | |
1245 | ||
1246 | s = scan_ident(s-1, bufend, tokenbuf, TRUE); | |
1247 | if (*tokenbuf) | |
1248 | force_ident(tokenbuf); | |
1249 | else | |
1250 | PREREF('&'); | |
1251 | TERM('&'); | |
1252 | ||
378cc40b LW |
1253 | case '|': |
1254 | s++; | |
1255 | tmp = *s++; | |
1256 | if (tmp == '|') | |
1257 | OPERATOR(OROR); | |
1258 | s--; | |
79072805 | 1259 | BOop(OP_BIT_OR); |
378cc40b LW |
1260 | case '=': |
1261 | s++; | |
1262 | tmp = *s++; | |
1263 | if (tmp == '=') | |
79072805 LW |
1264 | Eop(OP_EQ); |
1265 | if (tmp == '>') | |
1266 | OPERATOR(','); | |
378cc40b | 1267 | if (tmp == '~') |
79072805 | 1268 | PMop(OP_MATCH); |
378cc40b | 1269 | s--; |
79072805 LW |
1270 | if (in_format == 2 && (tmp == '\n' || s[1] == '\n')) { |
1271 | in_format = 1; | |
1272 | s--; | |
1273 | expect = XBLOCK; | |
1274 | goto leftbracket; | |
1275 | } | |
378cc40b LW |
1276 | OPERATOR('='); |
1277 | case '!': | |
1278 | s++; | |
1279 | tmp = *s++; | |
1280 | if (tmp == '=') | |
79072805 | 1281 | Eop(OP_NE); |
378cc40b | 1282 | if (tmp == '~') |
79072805 | 1283 | PMop(OP_NOT); |
378cc40b LW |
1284 | s--; |
1285 | OPERATOR('!'); | |
1286 | case '<': | |
79072805 | 1287 | if (expect != XOPERATOR) { |
93a17b20 | 1288 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 1289 | check_uni(); |
79072805 LW |
1290 | if (s[1] == '<') |
1291 | s = scan_heredoc(s); | |
1292 | else | |
1293 | s = scan_inputsymbol(s); | |
1294 | TERM(sublex_start()); | |
378cc40b LW |
1295 | } |
1296 | s++; | |
1297 | tmp = *s++; | |
1298 | if (tmp == '<') | |
79072805 | 1299 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
1300 | if (tmp == '=') { |
1301 | tmp = *s++; | |
1302 | if (tmp == '>') | |
79072805 | 1303 | Eop(OP_NCMP); |
395c3793 | 1304 | s--; |
79072805 | 1305 | Rop(OP_LE); |
395c3793 | 1306 | } |
378cc40b | 1307 | s--; |
79072805 | 1308 | Rop(OP_LT); |
378cc40b LW |
1309 | case '>': |
1310 | s++; | |
1311 | tmp = *s++; | |
1312 | if (tmp == '>') | |
79072805 | 1313 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 1314 | if (tmp == '=') |
79072805 | 1315 | Rop(OP_GE); |
378cc40b | 1316 | s--; |
79072805 | 1317 | Rop(OP_GT); |
378cc40b LW |
1318 | |
1319 | case '$': | |
79072805 LW |
1320 | if (in_format && expect == XOPERATOR) |
1321 | OPERATOR(','); /* grandfather non-comma-format format */ | |
1322 | if (s[1] == '#' && (isALPHA(s[2]) || s[2] == '_')) { | |
1323 | s = scan_ident(s+1, bufend, tokenbuf, FALSE); | |
1324 | force_ident(tokenbuf); | |
1325 | TERM(DOLSHARP); | |
1326 | } | |
93a17b20 LW |
1327 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
1328 | if (tokenbuf[1]) { | |
1329 | tokenbuf[0] = '$'; | |
1330 | if (dowarn && *s == '[') { | |
1331 | char *t; | |
1332 | for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ; | |
1333 | if (*t++ == ',') { | |
1334 | bufptr = skipspace(bufptr); | |
1335 | while (t < bufend && *t != ']') t++; | |
1336 | warn("Multidimensional syntax %.*s not supported", | |
1337 | t-bufptr+1, bufptr); | |
1338 | } | |
1339 | } | |
1340 | if (in_my) { | |
1341 | if (strchr(tokenbuf,'\'')) | |
1342 | fatal("\"my\" variable %s can't be in a package",tokenbuf); | |
1343 | nextval[nexttoke].opval = newOP(OP_PADSV, 0); | |
1344 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); | |
1345 | force_next(PRIVATEREF); | |
1346 | } | |
1347 | else if (!strchr(tokenbuf,'\'')) { | |
1348 | I32 optype = OP_PADSV; | |
1349 | if (*s == '[') { | |
1350 | tokenbuf[0] = '@'; | |
1351 | optype = OP_PADAV; | |
1352 | } | |
1353 | else if (*s == '{') { | |
1354 | tokenbuf[0] = '%'; | |
1355 | optype = OP_PADHV; | |
1356 | } | |
1357 | if (tmp = pad_findmy(tokenbuf)) { | |
1358 | nextval[nexttoke].opval = newOP(optype, 0); | |
1359 | nextval[nexttoke].opval->op_targ = tmp; | |
1360 | force_next(PRIVATEREF); | |
1361 | } | |
1362 | else | |
1363 | force_ident(tokenbuf+1); | |
1364 | } | |
1365 | else | |
1366 | force_ident(tokenbuf+1); | |
1367 | } | |
79072805 LW |
1368 | else |
1369 | PREREF('$'); | |
1370 | expect = XOPERATOR; | |
1371 | if (lex_state == LEX_NORMAL && | |
1372 | *tokenbuf && | |
1373 | isSPACE(*s) && | |
1374 | oldoldbufptr && | |
1375 | oldoldbufptr < bufptr) | |
1376 | { | |
2f3197b3 LW |
1377 | s++; |
1378 | while (isSPACE(*oldoldbufptr)) | |
1379 | oldoldbufptr++; | |
1380 | if (*oldoldbufptr == 'p' && strnEQ(oldoldbufptr,"print",5)) { | |
93a17b20 | 1381 | if (strchr("&*<%", *s) && isIDFIRST(s[1])) |
79072805 | 1382 | expect = XTERM; /* e.g. print $fh &sub */ |
2f3197b3 | 1383 | else if (*s == '.' && isDIGIT(s[1])) |
79072805 | 1384 | expect = XTERM; /* e.g. print $fh .3 */ |
93a17b20 | 1385 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) |
79072805 | 1386 | expect = XTERM; /* e.g. print $fh -1 */ |
2f3197b3 LW |
1387 | } |
1388 | } | |
79072805 | 1389 | TOKEN('$'); |
378cc40b LW |
1390 | |
1391 | case '@': | |
93a17b20 LW |
1392 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
1393 | if (tokenbuf[1]) { | |
1394 | tokenbuf[0] = '@'; | |
1395 | if (in_my) { | |
1396 | if (strchr(tokenbuf,'\'')) | |
1397 | fatal("\"my\" variable %s can't be in a package",tokenbuf); | |
1398 | nextval[nexttoke].opval = newOP(OP_PADAV, 0); | |
1399 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); | |
1400 | force_next(PRIVATEREF); | |
1401 | TERM('@'); | |
1402 | } | |
1403 | else if (!strchr(tokenbuf,'\'')) { | |
1404 | I32 optype = OP_PADAV; | |
1405 | if (*s == '{') { | |
1406 | tokenbuf[0] = '%'; | |
1407 | optype = OP_PADHV; | |
1408 | } | |
1409 | if (tmp = pad_findmy(tokenbuf)) { | |
1410 | nextval[nexttoke].opval = newOP(optype, 0); | |
1411 | nextval[nexttoke].opval->op_targ = tmp; | |
1412 | force_next(PRIVATEREF); | |
1413 | TERM('@'); | |
1414 | } | |
1415 | } | |
1416 | if (dowarn && *s == '[') { | |
1417 | char *t; | |
1418 | for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ; | |
1419 | if (*t++ == ']') { | |
1420 | bufptr = skipspace(bufptr); | |
1421 | warn("Scalar value %.*s better written as $%.*s", | |
1422 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); | |
1423 | } | |
1424 | } | |
1425 | force_ident(tokenbuf+1); | |
1426 | } | |
79072805 LW |
1427 | else |
1428 | PREREF('@'); | |
1429 | TERM('@'); | |
378cc40b LW |
1430 | |
1431 | case '/': /* may either be division or pattern */ | |
1432 | case '?': /* may either be conditional or pattern */ | |
79072805 | 1433 | if (expect != XOPERATOR) { |
2f3197b3 | 1434 | check_uni(); |
79072805 LW |
1435 | s = scan_pat(s); |
1436 | TERM(sublex_start()); | |
378cc40b LW |
1437 | } |
1438 | tmp = *s++; | |
a687059c | 1439 | if (tmp == '/') |
79072805 | 1440 | Mop(OP_DIVIDE); |
378cc40b LW |
1441 | OPERATOR(tmp); |
1442 | ||
1443 | case '.': | |
79072805 LW |
1444 | if (in_format == 2) { |
1445 | in_format = 0; | |
1446 | goto rightbracket; | |
1447 | } | |
1448 | if (expect == XOPERATOR || !isDIGIT(s[1])) { | |
378cc40b | 1449 | tmp = *s++; |
a687059c LW |
1450 | if (*s == tmp) { |
1451 | s++; | |
2f3197b3 LW |
1452 | if (*s == tmp) { |
1453 | s++; | |
79072805 | 1454 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
1455 | } |
1456 | else | |
79072805 | 1457 | yylval.ival = 0; |
378cc40b | 1458 | OPERATOR(DOTDOT); |
a687059c | 1459 | } |
79072805 | 1460 | if (expect != XOPERATOR) |
2f3197b3 | 1461 | check_uni(); |
79072805 | 1462 | Aop(OP_CONCAT); |
378cc40b LW |
1463 | } |
1464 | /* FALL THROUGH */ | |
1465 | case '0': case '1': case '2': case '3': case '4': | |
1466 | case '5': case '6': case '7': case '8': case '9': | |
79072805 LW |
1467 | s = scan_num(s); |
1468 | TERM(THING); | |
1469 | ||
1470 | case '\'': | |
1471 | if (in_format && expect == XOPERATOR) | |
1472 | OPERATOR(','); /* grandfather non-comma-format format */ | |
1473 | s = scan_str(s); | |
1474 | if (!s) | |
1475 | fatal("EOF in string"); | |
1476 | yylval.ival = OP_CONST; | |
1477 | TERM(sublex_start()); | |
1478 | ||
1479 | case '"': | |
1480 | if (in_format && expect == XOPERATOR) | |
1481 | OPERATOR(','); /* grandfather non-comma-format format */ | |
1482 | s = scan_str(s); | |
1483 | if (!s) | |
1484 | fatal("EOF in string"); | |
1485 | yylval.ival = OP_SCALAR; | |
1486 | TERM(sublex_start()); | |
1487 | ||
1488 | case '`': | |
1489 | s = scan_str(s); | |
1490 | if (!s) | |
1491 | fatal("EOF in backticks"); | |
1492 | yylval.ival = OP_BACKTICK; | |
1493 | set_csh(); | |
1494 | TERM(sublex_start()); | |
1495 | ||
1496 | case '\\': | |
1497 | s++; | |
1498 | OPERATOR(REFGEN); | |
1499 | ||
1500 | case 'x': | |
1501 | if (isDIGIT(s[1]) && expect == XOPERATOR) { | |
1502 | s++; | |
1503 | Mop(OP_REPEAT); | |
2f3197b3 | 1504 | } |
79072805 LW |
1505 | goto keylookup; |
1506 | ||
378cc40b | 1507 | case '_': |
79072805 LW |
1508 | case 'a': case 'A': |
1509 | case 'b': case 'B': | |
1510 | case 'c': case 'C': | |
1511 | case 'd': case 'D': | |
1512 | case 'e': case 'E': | |
1513 | case 'f': case 'F': | |
1514 | case 'g': case 'G': | |
1515 | case 'h': case 'H': | |
1516 | case 'i': case 'I': | |
1517 | case 'j': case 'J': | |
1518 | case 'k': case 'K': | |
1519 | case 'l': case 'L': | |
1520 | case 'm': case 'M': | |
1521 | case 'n': case 'N': | |
1522 | case 'o': case 'O': | |
1523 | case 'p': case 'P': | |
1524 | case 'q': case 'Q': | |
1525 | case 'r': case 'R': | |
1526 | case 's': case 'S': | |
1527 | case 't': case 'T': | |
1528 | case 'u': case 'U': | |
1529 | case 'v': case 'V': | |
1530 | case 'w': case 'W': | |
1531 | case 'X': | |
1532 | case 'y': case 'Y': | |
1533 | case 'z': case 'Z': | |
1534 | ||
1535 | keylookup: | |
1536 | d = tokenbuf; | |
378cc40b | 1537 | SNARFWORD; |
e929a76b | 1538 | |
79072805 LW |
1539 | switch (tmp = keyword(tokenbuf, d - tokenbuf)) { |
1540 | ||
1541 | default: /* not a keyword */ | |
93a17b20 LW |
1542 | just_a_word: { |
1543 | GV *gv; | |
1544 | while (*s == '\'' && isIDFIRST(s[1])) { | |
1545 | *d++ = *s++; | |
1546 | SNARFWORD; | |
395c3793 | 1547 | } |
93a17b20 LW |
1548 | if (expect == XBLOCK) { /* special case: start of statement */ |
1549 | while (isSPACE(*s)) s++; | |
1550 | if (*s == ':') { | |
1551 | yylval.pval = savestr(tokenbuf); | |
1552 | s++; | |
1553 | CLINE; | |
1554 | TOKEN(LABEL); | |
1555 | } | |
1556 | } | |
1557 | gv = gv_fetchpv(tokenbuf,FALSE); | |
1558 | if (gv && GvCV(gv)) { | |
1559 | nextval[nexttoke].opval = | |
1560 | (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
1561 | nextval[nexttoke].opval->op_private = OPpCONST_BARE; | |
1562 | force_next(WORD); | |
1563 | TERM(NOAMP); | |
1564 | } | |
1565 | expect = XOPERATOR; | |
1566 | if (oldoldbufptr && oldoldbufptr < bufptr) { | |
1567 | if (oldoldbufptr == last_lop) { | |
1568 | expect = XTERM; | |
1569 | CLINE; | |
1570 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
1571 | newSVpv(tokenbuf,0)); | |
1572 | yylval.opval->op_private = OPpCONST_BARE; | |
1573 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
1574 | if (dowarn && !*d) | |
1575 | warn( | |
1576 | "\"%s\" may clash with future reserved word", | |
1577 | tokenbuf ); | |
1578 | TOKEN(WORD); | |
1579 | } | |
1580 | } | |
1581 | while (s < bufend && isSPACE(*s)) | |
1582 | s++; | |
1583 | if (*s == '(') { | |
79072805 | 1584 | CLINE; |
93a17b20 LW |
1585 | nextval[nexttoke].opval = |
1586 | (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
1587 | nextval[nexttoke].opval->op_private = OPpCONST_BARE; | |
1588 | force_next(WORD); | |
1589 | TERM('&'); | |
79072805 | 1590 | } |
79072805 | 1591 | CLINE; |
93a17b20 LW |
1592 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
1593 | yylval.opval->op_private = OPpCONST_BARE; | |
1594 | ||
1595 | if (*s == '$' || *s == '{') | |
1596 | PREBLOCK(METHOD); | |
1597 | ||
1598 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
1599 | if (dowarn && !*d) | |
1600 | warn( | |
1601 | "\"%s\" may clash with future reserved word", | |
1602 | tokenbuf ); | |
1603 | TOKEN(WORD); | |
79072805 | 1604 | } |
79072805 LW |
1605 | |
1606 | case KEY___LINE__: | |
1607 | case KEY___FILE__: { | |
1608 | if (tokenbuf[2] == 'L') | |
1609 | (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line); | |
1610 | else | |
1611 | strcpy(tokenbuf, SvPV(GvSV(curcop->cop_filegv))); | |
1612 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
1613 | TERM(THING); | |
1614 | } | |
1615 | ||
1616 | case KEY___END__: { | |
1617 | GV *gv; | |
1618 | int fd; | |
1619 | ||
1620 | /*SUPPRESS 560*/ | |
1621 | if (!in_eval && (gv = gv_fetchpv("DATA",FALSE))) { | |
1622 | SvMULTI_on(gv); | |
1623 | if (!GvIO(gv)) | |
1624 | GvIO(gv) = newIO(); | |
1625 | GvIO(gv)->ifp = rsfp; | |
1626 | #if defined(HAS_FCNTL) && defined(FFt_SETFD) | |
1627 | fd = fileno(rsfp); | |
1628 | fcntl(fd,FFt_SETFD,fd >= 3); | |
1629 | #endif | |
1630 | if (preprocess) | |
1631 | GvIO(gv)->type = '|'; | |
1632 | else if ((FILE*)rsfp == stdin) | |
1633 | GvIO(gv)->type = '-'; | |
1634 | else | |
1635 | GvIO(gv)->type = '<'; | |
1636 | rsfp = Nullfp; | |
1637 | } | |
1638 | goto fake_eof; | |
e929a76b | 1639 | } |
de3bb511 | 1640 | |
79072805 LW |
1641 | case KEY_BEGIN: |
1642 | case KEY_END: | |
1643 | s = skipspace(s); | |
93a17b20 LW |
1644 | if (expect == XBLOCK && (minus_p || minus_n || *s == '{' )) { |
1645 | s = bufptr; | |
1646 | goto really_sub; | |
79072805 LW |
1647 | } |
1648 | goto just_a_word; | |
1649 | ||
1650 | case KEY_alarm: | |
1651 | UNI(OP_ALARM); | |
1652 | ||
1653 | case KEY_accept: | |
1654 | LOP(OP_ACCEPT); | |
1655 | ||
1656 | case KEY_atan2: | |
1657 | LOP(OP_ATAN2); | |
1658 | ||
1659 | case KEY_bind: | |
1660 | LOP(OP_BIND); | |
1661 | ||
1662 | case KEY_binmode: | |
1663 | UNI(OP_BINMODE); | |
1664 | ||
1665 | case KEY_bless: | |
1666 | UNI(OP_BLESS); | |
1667 | ||
1668 | case KEY_chop: | |
1669 | UNI(OP_CHOP); | |
1670 | ||
1671 | case KEY_continue: | |
1672 | PREBLOCK(CONTINUE); | |
1673 | ||
1674 | case KEY_chdir: | |
1675 | (void)gv_fetchpv("ENV",TRUE); /* may use HOME */ | |
1676 | UNI(OP_CHDIR); | |
1677 | ||
1678 | case KEY_close: | |
1679 | UNI(OP_CLOSE); | |
1680 | ||
1681 | case KEY_closedir: | |
1682 | UNI(OP_CLOSEDIR); | |
1683 | ||
1684 | case KEY_cmp: | |
1685 | Eop(OP_SCMP); | |
1686 | ||
1687 | case KEY_caller: | |
1688 | UNI(OP_CALLER); | |
1689 | ||
1690 | case KEY_crypt: | |
1691 | #ifdef FCRYPT | |
de3bb511 LW |
1692 | if (!cryptseen++) |
1693 | init_des(); | |
a687059c | 1694 | #endif |
79072805 LW |
1695 | LOP(OP_CRYPT); |
1696 | ||
1697 | case KEY_chmod: | |
93a17b20 LW |
1698 | s = skipspace(s); |
1699 | if (dowarn && *s != '0' && isDIGIT(*s)) | |
1700 | warn("chmod: mode argument is missing initial 0"); | |
79072805 LW |
1701 | LOP(OP_CHMOD); |
1702 | ||
1703 | case KEY_chown: | |
1704 | LOP(OP_CHOWN); | |
1705 | ||
1706 | case KEY_connect: | |
1707 | LOP(OP_CONNECT); | |
1708 | ||
1709 | case KEY_cos: | |
1710 | UNI(OP_COS); | |
1711 | ||
1712 | case KEY_chroot: | |
1713 | UNI(OP_CHROOT); | |
1714 | ||
1715 | case KEY_do: | |
1716 | s = skipspace(s); | |
1717 | if (*s == '{') | |
1718 | PREBLOCK(DO); | |
1719 | if (*s != '\'') | |
1720 | s = force_word(s,WORD); | |
378cc40b | 1721 | OPERATOR(DO); |
79072805 LW |
1722 | |
1723 | case KEY_die: | |
1724 | LOP(OP_DIE); | |
1725 | ||
1726 | case KEY_defined: | |
1727 | UNI(OP_DEFINED); | |
1728 | ||
1729 | case KEY_delete: | |
1730 | OPERATOR(DELETE); | |
1731 | ||
1732 | case KEY_dbmopen: | |
1733 | LOP(OP_DBMOPEN); | |
1734 | ||
1735 | case KEY_dbmclose: | |
1736 | UNI(OP_DBMCLOSE); | |
1737 | ||
1738 | case KEY_dump: | |
1739 | LOOPX(OP_DUMP); | |
1740 | ||
1741 | case KEY_else: | |
1742 | PREBLOCK(ELSE); | |
1743 | ||
1744 | case KEY_elsif: | |
1745 | yylval.ival = curcop->cop_line; | |
1746 | OPERATOR(ELSIF); | |
1747 | ||
1748 | case KEY_eq: | |
1749 | Eop(OP_SEQ); | |
1750 | ||
1751 | case KEY_exit: | |
1752 | UNI(OP_EXIT); | |
1753 | ||
1754 | case KEY_eval: | |
1755 | allgvs = TRUE; /* must initialize everything since */ | |
1756 | s = skipspace(s); | |
1757 | expect = (*s == '{') ? XBLOCK : XTERM; | |
1758 | UNIBRACK(OP_ENTEREVAL); /* we don't know what will be used */ | |
1759 | ||
1760 | case KEY_eof: | |
1761 | UNI(OP_EOF); | |
1762 | ||
1763 | case KEY_exp: | |
1764 | UNI(OP_EXP); | |
1765 | ||
1766 | case KEY_each: | |
1767 | UNI(OP_EACH); | |
1768 | ||
1769 | case KEY_exec: | |
1770 | set_csh(); | |
1771 | LOP(OP_EXEC); | |
1772 | ||
1773 | case KEY_endhostent: | |
1774 | FUN0(OP_EHOSTENT); | |
1775 | ||
1776 | case KEY_endnetent: | |
1777 | FUN0(OP_ENETENT); | |
1778 | ||
1779 | case KEY_endservent: | |
1780 | FUN0(OP_ESERVENT); | |
1781 | ||
1782 | case KEY_endprotoent: | |
1783 | FUN0(OP_EPROTOENT); | |
1784 | ||
1785 | case KEY_endpwent: | |
1786 | FUN0(OP_EPWENT); | |
1787 | ||
1788 | case KEY_endgrent: | |
1789 | FUN0(OP_EGRENT); | |
1790 | ||
1791 | case KEY_for: | |
1792 | case KEY_foreach: | |
1793 | yylval.ival = curcop->cop_line; | |
1794 | while (s < bufend && isSPACE(*s)) | |
1795 | s++; | |
1796 | if (isIDFIRST(*s)) | |
1797 | fatal("Missing $ on loop variable"); | |
1798 | OPERATOR(FOR); | |
1799 | ||
1800 | case KEY_formline: | |
1801 | LOP(OP_FORMLINE); | |
1802 | ||
1803 | case KEY_fork: | |
1804 | FUN0(OP_FORK); | |
1805 | ||
1806 | case KEY_fcntl: | |
1807 | LOP(OP_FCNTL); | |
1808 | ||
1809 | case KEY_fileno: | |
1810 | UNI(OP_FILENO); | |
1811 | ||
1812 | case KEY_flock: | |
1813 | LOP(OP_FLOCK); | |
1814 | ||
1815 | case KEY_gt: | |
1816 | Rop(OP_SGT); | |
1817 | ||
1818 | case KEY_ge: | |
1819 | Rop(OP_SGE); | |
1820 | ||
1821 | case KEY_grep: | |
1822 | LOP(OP_GREPSTART); | |
1823 | ||
1824 | case KEY_goto: | |
1825 | LOOPX(OP_GOTO); | |
1826 | ||
1827 | case KEY_gmtime: | |
1828 | UNI(OP_GMTIME); | |
1829 | ||
1830 | case KEY_getc: | |
1831 | UNI(OP_GETC); | |
1832 | ||
1833 | case KEY_getppid: | |
1834 | FUN0(OP_GETPPID); | |
1835 | ||
1836 | case KEY_getpgrp: | |
1837 | UNI(OP_GETPGRP); | |
1838 | ||
1839 | case KEY_getpriority: | |
1840 | LOP(OP_GETPRIORITY); | |
1841 | ||
1842 | case KEY_getprotobyname: | |
1843 | UNI(OP_GPBYNAME); | |
1844 | ||
1845 | case KEY_getprotobynumber: | |
1846 | LOP(OP_GPBYNUMBER); | |
1847 | ||
1848 | case KEY_getprotoent: | |
1849 | FUN0(OP_GPROTOENT); | |
1850 | ||
1851 | case KEY_getpwent: | |
1852 | FUN0(OP_GPWENT); | |
1853 | ||
1854 | case KEY_getpwnam: | |
1855 | FUN1(OP_GPWNAM); | |
1856 | ||
1857 | case KEY_getpwuid: | |
1858 | FUN1(OP_GPWUID); | |
1859 | ||
1860 | case KEY_getpeername: | |
1861 | UNI(OP_GETPEERNAME); | |
1862 | ||
1863 | case KEY_gethostbyname: | |
1864 | UNI(OP_GHBYNAME); | |
1865 | ||
1866 | case KEY_gethostbyaddr: | |
1867 | LOP(OP_GHBYADDR); | |
1868 | ||
1869 | case KEY_gethostent: | |
1870 | FUN0(OP_GHOSTENT); | |
1871 | ||
1872 | case KEY_getnetbyname: | |
1873 | UNI(OP_GNBYNAME); | |
1874 | ||
1875 | case KEY_getnetbyaddr: | |
1876 | LOP(OP_GNBYADDR); | |
1877 | ||
1878 | case KEY_getnetent: | |
1879 | FUN0(OP_GNETENT); | |
1880 | ||
1881 | case KEY_getservbyname: | |
1882 | LOP(OP_GSBYNAME); | |
1883 | ||
1884 | case KEY_getservbyport: | |
1885 | LOP(OP_GSBYPORT); | |
1886 | ||
1887 | case KEY_getservent: | |
1888 | FUN0(OP_GSERVENT); | |
1889 | ||
1890 | case KEY_getsockname: | |
1891 | UNI(OP_GETSOCKNAME); | |
1892 | ||
1893 | case KEY_getsockopt: | |
1894 | LOP(OP_GSOCKOPT); | |
1895 | ||
1896 | case KEY_getgrent: | |
1897 | FUN0(OP_GGRENT); | |
1898 | ||
1899 | case KEY_getgrnam: | |
1900 | FUN1(OP_GGRNAM); | |
1901 | ||
1902 | case KEY_getgrgid: | |
1903 | FUN1(OP_GGRGID); | |
1904 | ||
1905 | case KEY_getlogin: | |
1906 | FUN0(OP_GETLOGIN); | |
1907 | ||
93a17b20 LW |
1908 | case KEY_glob: |
1909 | UNI(OP_GLOB); | |
1910 | ||
79072805 LW |
1911 | case KEY_hex: |
1912 | UNI(OP_HEX); | |
1913 | ||
1914 | case KEY_if: | |
1915 | yylval.ival = curcop->cop_line; | |
1916 | OPERATOR(IF); | |
1917 | ||
1918 | case KEY_index: | |
1919 | LOP(OP_INDEX); | |
1920 | ||
1921 | case KEY_int: | |
1922 | UNI(OP_INT); | |
1923 | ||
1924 | case KEY_ioctl: | |
1925 | LOP(OP_IOCTL); | |
1926 | ||
1927 | case KEY_join: | |
1928 | LOP(OP_JOIN); | |
1929 | ||
1930 | case KEY_keys: | |
1931 | UNI(OP_KEYS); | |
1932 | ||
1933 | case KEY_kill: | |
1934 | LOP(OP_KILL); | |
1935 | ||
1936 | case KEY_last: | |
1937 | LOOPX(OP_LAST); | |
1938 | ||
1939 | case KEY_lc: | |
1940 | UNI(OP_LC); | |
1941 | ||
1942 | case KEY_lcfirst: | |
1943 | UNI(OP_LCFIRST); | |
1944 | ||
1945 | case KEY_local: | |
93a17b20 | 1946 | yylval.ival = 0; |
79072805 LW |
1947 | OPERATOR(LOCAL); |
1948 | ||
1949 | case KEY_length: | |
1950 | UNI(OP_LENGTH); | |
1951 | ||
1952 | case KEY_lt: | |
1953 | Rop(OP_SLT); | |
1954 | ||
1955 | case KEY_le: | |
1956 | Rop(OP_SLE); | |
1957 | ||
1958 | case KEY_localtime: | |
1959 | UNI(OP_LOCALTIME); | |
1960 | ||
1961 | case KEY_log: | |
1962 | UNI(OP_LOG); | |
1963 | ||
1964 | case KEY_link: | |
1965 | LOP(OP_LINK); | |
1966 | ||
1967 | case KEY_listen: | |
1968 | LOP(OP_LISTEN); | |
1969 | ||
1970 | case KEY_lstat: | |
1971 | UNI(OP_LSTAT); | |
1972 | ||
1973 | case KEY_m: | |
1974 | s = scan_pat(s); | |
1975 | TERM(sublex_start()); | |
1976 | ||
1977 | case KEY_mkdir: | |
1978 | LOP(OP_MKDIR); | |
1979 | ||
1980 | case KEY_msgctl: | |
1981 | LOP(OP_MSGCTL); | |
1982 | ||
1983 | case KEY_msgget: | |
1984 | LOP(OP_MSGGET); | |
1985 | ||
1986 | case KEY_msgrcv: | |
1987 | LOP(OP_MSGRCV); | |
1988 | ||
1989 | case KEY_msgsnd: | |
1990 | LOP(OP_MSGSND); | |
1991 | ||
93a17b20 LW |
1992 | case KEY_my: |
1993 | in_my = TRUE; | |
1994 | yylval.ival = 1; | |
1995 | OPERATOR(LOCAL); | |
1996 | ||
79072805 LW |
1997 | case KEY_next: |
1998 | LOOPX(OP_NEXT); | |
1999 | ||
2000 | case KEY_ne: | |
2001 | Eop(OP_SNE); | |
2002 | ||
2003 | case KEY_open: | |
93a17b20 LW |
2004 | s = skipspace(s); |
2005 | if (isIDFIRST(*s)) { | |
2006 | char *t; | |
2007 | for (d = s; isALNUM(*d); d++) ; | |
2008 | t = skipspace(d); | |
2009 | if (strchr("|&*+-=!?:.", *t)) | |
2010 | warn("Precedence problem: open %.*s should be open(%.*s)", | |
2011 | d-s,s, d-s,s); | |
2012 | } | |
79072805 LW |
2013 | LOP(OP_OPEN); |
2014 | ||
2015 | case KEY_ord: | |
2016 | UNI(OP_ORD); | |
2017 | ||
2018 | case KEY_oct: | |
2019 | UNI(OP_OCT); | |
2020 | ||
2021 | case KEY_opendir: | |
2022 | LOP(OP_OPEN_DIR); | |
2023 | ||
2024 | case KEY_print: | |
2025 | checkcomma(s,tokenbuf,"filehandle"); | |
2026 | LOP(OP_PRINT); | |
2027 | ||
2028 | case KEY_printf: | |
2029 | checkcomma(s,tokenbuf,"filehandle"); | |
2030 | LOP(OP_PRTF); | |
2031 | ||
2032 | case KEY_push: | |
2033 | LOP(OP_PUSH); | |
2034 | ||
2035 | case KEY_pop: | |
2036 | UNI(OP_POP); | |
2037 | ||
2038 | case KEY_pack: | |
2039 | LOP(OP_PACK); | |
2040 | ||
2041 | case KEY_package: | |
2042 | s = force_word(s,WORD); | |
2043 | OPERATOR(PACKAGE); | |
2044 | ||
2045 | case KEY_pipe: | |
2046 | LOP(OP_PIPE_OP); | |
2047 | ||
2048 | case KEY_q: | |
2049 | s = scan_str(s); | |
2050 | if (!s) | |
2051 | fatal("EOF in string"); | |
2052 | yylval.ival = OP_CONST; | |
2053 | TERM(sublex_start()); | |
2054 | ||
2055 | case KEY_qq: | |
2056 | s = scan_str(s); | |
2057 | if (!s) | |
2058 | fatal("EOF in string"); | |
2059 | yylval.ival = OP_SCALAR; | |
2060 | if (SvSTORAGE(lex_stuff) == '\'') | |
2061 | SvSTORAGE(lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
2062 | TERM(sublex_start()); | |
2063 | ||
2064 | case KEY_qx: | |
2065 | s = scan_str(s); | |
2066 | if (!s) | |
2067 | fatal("EOF in string"); | |
2068 | yylval.ival = OP_BACKTICK; | |
2069 | set_csh(); | |
2070 | TERM(sublex_start()); | |
2071 | ||
2072 | case KEY_return: | |
2073 | OLDLOP(OP_RETURN); | |
2074 | ||
2075 | case KEY_require: | |
2076 | allgvs = TRUE; /* must initialize everything since */ | |
2077 | UNI(OP_REQUIRE); /* we don't know what will be used */ | |
2078 | ||
2079 | case KEY_reset: | |
2080 | UNI(OP_RESET); | |
2081 | ||
2082 | case KEY_redo: | |
2083 | LOOPX(OP_REDO); | |
2084 | ||
2085 | case KEY_rename: | |
2086 | LOP(OP_RENAME); | |
2087 | ||
2088 | case KEY_rand: | |
2089 | UNI(OP_RAND); | |
2090 | ||
2091 | case KEY_rmdir: | |
2092 | UNI(OP_RMDIR); | |
2093 | ||
2094 | case KEY_rindex: | |
2095 | LOP(OP_RINDEX); | |
2096 | ||
2097 | case KEY_read: | |
2098 | LOP(OP_READ); | |
2099 | ||
2100 | case KEY_readdir: | |
2101 | UNI(OP_READDIR); | |
2102 | ||
93a17b20 LW |
2103 | case KEY_readline: |
2104 | set_csh(); | |
2105 | UNI(OP_READLINE); | |
2106 | ||
2107 | case KEY_readpipe: | |
2108 | set_csh(); | |
2109 | UNI(OP_BACKTICK); | |
2110 | ||
79072805 LW |
2111 | case KEY_rewinddir: |
2112 | UNI(OP_REWINDDIR); | |
2113 | ||
2114 | case KEY_recv: | |
2115 | LOP(OP_RECV); | |
2116 | ||
2117 | case KEY_reverse: | |
2118 | LOP(OP_REVERSE); | |
2119 | ||
2120 | case KEY_readlink: | |
2121 | UNI(OP_READLINK); | |
2122 | ||
2123 | case KEY_ref: | |
2124 | UNI(OP_REF); | |
2125 | ||
2126 | case KEY_s: | |
2127 | s = scan_subst(s); | |
2128 | if (yylval.opval) | |
2129 | TERM(sublex_start()); | |
2130 | else | |
2131 | TOKEN(1); /* force error */ | |
2132 | ||
2133 | case KEY_scalar: | |
2134 | UNI(OP_SCALAR); | |
2135 | ||
2136 | case KEY_select: | |
2137 | LOP(OP_SELECT); | |
2138 | ||
2139 | case KEY_seek: | |
2140 | LOP(OP_SEEK); | |
2141 | ||
2142 | case KEY_semctl: | |
2143 | LOP(OP_SEMCTL); | |
2144 | ||
2145 | case KEY_semget: | |
2146 | LOP(OP_SEMGET); | |
2147 | ||
2148 | case KEY_semop: | |
2149 | LOP(OP_SEMOP); | |
2150 | ||
2151 | case KEY_send: | |
2152 | LOP(OP_SEND); | |
2153 | ||
2154 | case KEY_setpgrp: | |
2155 | LOP(OP_SETPGRP); | |
2156 | ||
2157 | case KEY_setpriority: | |
2158 | LOP(OP_SETPRIORITY); | |
2159 | ||
2160 | case KEY_sethostent: | |
2161 | FUN1(OP_SHOSTENT); | |
2162 | ||
2163 | case KEY_setnetent: | |
2164 | FUN1(OP_SNETENT); | |
2165 | ||
2166 | case KEY_setservent: | |
2167 | FUN1(OP_SSERVENT); | |
2168 | ||
2169 | case KEY_setprotoent: | |
2170 | FUN1(OP_SPROTOENT); | |
2171 | ||
2172 | case KEY_setpwent: | |
2173 | FUN0(OP_SPWENT); | |
2174 | ||
2175 | case KEY_setgrent: | |
2176 | FUN0(OP_SGRENT); | |
2177 | ||
2178 | case KEY_seekdir: | |
2179 | LOP(OP_SEEKDIR); | |
2180 | ||
2181 | case KEY_setsockopt: | |
2182 | LOP(OP_SSOCKOPT); | |
2183 | ||
2184 | case KEY_shift: | |
2185 | UNI(OP_SHIFT); | |
2186 | ||
2187 | case KEY_shmctl: | |
2188 | LOP(OP_SHMCTL); | |
2189 | ||
2190 | case KEY_shmget: | |
2191 | LOP(OP_SHMGET); | |
2192 | ||
2193 | case KEY_shmread: | |
2194 | LOP(OP_SHMREAD); | |
2195 | ||
2196 | case KEY_shmwrite: | |
2197 | LOP(OP_SHMWRITE); | |
2198 | ||
2199 | case KEY_shutdown: | |
2200 | LOP(OP_SHUTDOWN); | |
2201 | ||
2202 | case KEY_sin: | |
2203 | UNI(OP_SIN); | |
2204 | ||
2205 | case KEY_sleep: | |
2206 | UNI(OP_SLEEP); | |
2207 | ||
2208 | case KEY_socket: | |
2209 | LOP(OP_SOCKET); | |
2210 | ||
2211 | case KEY_socketpair: | |
2212 | LOP(OP_SOCKPAIR); | |
2213 | ||
2214 | case KEY_sort: | |
2215 | checkcomma(s,tokenbuf,"subroutine name"); | |
2216 | s = skipspace(s); | |
2217 | if (*s == ';' || *s == ')') /* probably a close */ | |
2218 | fatal("sort is now a reserved word"); | |
2219 | if (isIDFIRST(*s)) { | |
2220 | /*SUPPRESS 530*/ | |
2221 | for (d = s; isALNUM(*d); d++) ; | |
2222 | strncpy(tokenbuf,s,d-s); | |
2223 | tokenbuf[d-s] = '\0'; | |
2224 | if (!keyword(tokenbuf, d - s) || strEQ(tokenbuf,"reverse")) | |
2225 | s = force_word(s,WORD); | |
2226 | } | |
2227 | LOP(OP_SORT); | |
2228 | ||
2229 | case KEY_split: | |
2230 | LOP(OP_SPLIT); | |
2231 | ||
2232 | case KEY_sprintf: | |
2233 | LOP(OP_SPRINTF); | |
2234 | ||
2235 | case KEY_splice: | |
2236 | LOP(OP_SPLICE); | |
2237 | ||
2238 | case KEY_sqrt: | |
2239 | UNI(OP_SQRT); | |
2240 | ||
2241 | case KEY_srand: | |
2242 | UNI(OP_SRAND); | |
2243 | ||
2244 | case KEY_stat: | |
2245 | UNI(OP_STAT); | |
2246 | ||
2247 | case KEY_study: | |
2248 | sawstudy++; | |
2249 | UNI(OP_STUDY); | |
2250 | ||
2251 | case KEY_substr: | |
2252 | LOP(OP_SUBSTR); | |
2253 | ||
2254 | case KEY_format: | |
2255 | case KEY_sub: | |
93a17b20 | 2256 | really_sub: |
79072805 LW |
2257 | yylval.ival = savestack_ix; /* restore stuff on reduce */ |
2258 | save_I32(&subline); | |
2259 | save_item(subname); | |
2260 | SAVEINT(padix); | |
2261 | SAVESPTR(curpad); | |
2262 | SAVESPTR(comppad); | |
93a17b20 LW |
2263 | SAVESPTR(comppadname); |
2264 | SAVEINT(comppadnamefill); | |
79072805 | 2265 | comppad = newAV(); |
93a17b20 LW |
2266 | comppadname = newAV(); |
2267 | comppadnamefill = -1; | |
79072805 LW |
2268 | av_push(comppad, Nullsv); |
2269 | curpad = AvARRAY(comppad); | |
2270 | padix = 0; | |
2271 | ||
2272 | subline = curcop->cop_line; | |
2273 | s = skipspace(s); | |
2274 | if (isIDFIRST(*s) || *s == '\'') { | |
2275 | sv_setsv(subname,curstname); | |
2276 | sv_catpvn(subname,"'",1); | |
2277 | for (d = s+1; isALNUM(*d) || *d == '\''; d++) | |
2278 | /*SUPPRESS 530*/ | |
2279 | ; | |
2280 | if (d[-1] == '\'') | |
2281 | d--; | |
2282 | sv_catpvn(subname,s,d-s); | |
2283 | s = force_word(s,WORD); | |
2284 | } | |
2285 | else | |
2286 | sv_setpv(subname,"?"); | |
2287 | ||
93a17b20 | 2288 | if (tmp != KEY_format) |
79072805 LW |
2289 | PREBLOCK(SUB); |
2290 | ||
2291 | in_format = 2; | |
2292 | lex_brackets = 0; | |
2293 | OPERATOR(FORMAT); | |
2294 | ||
2295 | case KEY_system: | |
2296 | set_csh(); | |
2297 | LOP(OP_SYSTEM); | |
2298 | ||
2299 | case KEY_symlink: | |
2300 | LOP(OP_SYMLINK); | |
2301 | ||
2302 | case KEY_syscall: | |
2303 | LOP(OP_SYSCALL); | |
2304 | ||
2305 | case KEY_sysread: | |
2306 | LOP(OP_SYSREAD); | |
2307 | ||
2308 | case KEY_syswrite: | |
2309 | LOP(OP_SYSWRITE); | |
2310 | ||
2311 | case KEY_tr: | |
2312 | s = scan_trans(s); | |
2313 | TERM(sublex_start()); | |
2314 | ||
2315 | case KEY_tell: | |
2316 | UNI(OP_TELL); | |
2317 | ||
2318 | case KEY_telldir: | |
2319 | UNI(OP_TELLDIR); | |
2320 | ||
2321 | case KEY_time: | |
2322 | FUN0(OP_TIME); | |
2323 | ||
2324 | case KEY_times: | |
2325 | FUN0(OP_TMS); | |
2326 | ||
2327 | case KEY_truncate: | |
2328 | LOP(OP_TRUNCATE); | |
2329 | ||
2330 | case KEY_uc: | |
2331 | UNI(OP_UC); | |
2332 | ||
2333 | case KEY_ucfirst: | |
2334 | UNI(OP_UCFIRST); | |
2335 | ||
2336 | case KEY_until: | |
2337 | yylval.ival = curcop->cop_line; | |
2338 | OPERATOR(UNTIL); | |
2339 | ||
2340 | case KEY_unless: | |
2341 | yylval.ival = curcop->cop_line; | |
2342 | OPERATOR(UNLESS); | |
2343 | ||
2344 | case KEY_unlink: | |
2345 | LOP(OP_UNLINK); | |
2346 | ||
2347 | case KEY_undef: | |
2348 | UNI(OP_UNDEF); | |
2349 | ||
2350 | case KEY_unpack: | |
2351 | LOP(OP_UNPACK); | |
2352 | ||
2353 | case KEY_utime: | |
2354 | LOP(OP_UTIME); | |
2355 | ||
2356 | case KEY_umask: | |
93a17b20 LW |
2357 | s = skipspace(s); |
2358 | if (dowarn && *s != '0' && isDIGIT(*s)) | |
2359 | warn("umask: argument is missing initial 0"); | |
79072805 LW |
2360 | UNI(OP_UMASK); |
2361 | ||
2362 | case KEY_unshift: | |
2363 | LOP(OP_UNSHIFT); | |
2364 | ||
2365 | case KEY_values: | |
2366 | UNI(OP_VALUES); | |
2367 | ||
2368 | case KEY_vec: | |
2369 | sawvec = TRUE; | |
2370 | LOP(OP_VEC); | |
2371 | ||
2372 | case KEY_while: | |
2373 | yylval.ival = curcop->cop_line; | |
2374 | OPERATOR(WHILE); | |
2375 | ||
2376 | case KEY_warn: | |
2377 | LOP(OP_WARN); | |
2378 | ||
2379 | case KEY_wait: | |
2380 | FUN0(OP_WAIT); | |
2381 | ||
2382 | case KEY_waitpid: | |
2383 | LOP(OP_WAITPID); | |
2384 | ||
2385 | case KEY_wantarray: | |
2386 | FUN0(OP_WANTARRAY); | |
2387 | ||
2388 | case KEY_write: | |
2389 | UNI(OP_ENTERWRITE); | |
2390 | ||
2391 | case KEY_x: | |
2392 | if (expect == XOPERATOR) | |
2393 | Mop(OP_REPEAT); | |
2394 | check_uni(); | |
2395 | goto just_a_word; | |
2396 | ||
2397 | case KEY_y: | |
2398 | s = scan_trans(s); | |
2399 | TERM(sublex_start()); | |
2400 | } | |
2401 | } | |
2402 | } | |
2403 | ||
2404 | I32 | |
2405 | keyword(d, len) | |
2406 | register char *d; | |
2407 | I32 len; | |
2408 | { | |
2409 | switch (*d) { | |
2410 | case '_': | |
2411 | if (d[1] == '_') { | |
2412 | if (strEQ(d,"__LINE__")) return KEY___LINE__; | |
2413 | if (strEQ(d,"__FILE__")) return KEY___FILE__; | |
2414 | if (strEQ(d,"__END__")) return KEY___END__; | |
2415 | } | |
2416 | break; | |
2417 | case 'a': | |
2418 | if (strEQ(d,"alarm")) return KEY_alarm; | |
2419 | if (strEQ(d,"accept")) return KEY_accept; | |
2420 | if (strEQ(d,"atan2")) return KEY_atan2; | |
2421 | break; | |
2422 | case 'B': | |
2423 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 2424 | break; |
79072805 LW |
2425 | case 'b': |
2426 | if (strEQ(d,"bless")) return KEY_bless; | |
2427 | if (strEQ(d,"bind")) return KEY_bind; | |
2428 | if (strEQ(d,"binmode")) return KEY_binmode; | |
2429 | break; | |
2430 | case 'c': | |
2431 | switch (len) { | |
2432 | case 3: | |
2433 | if (strEQ(d,"cmp")) return KEY_cmp; | |
2434 | if (strEQ(d,"cos")) return KEY_cos; | |
2435 | break; | |
2436 | case 4: | |
2437 | if (strEQ(d,"chop")) return KEY_chop; | |
2438 | break; | |
2439 | case 5: | |
2440 | if (strEQ(d,"close")) return KEY_close; | |
2441 | if (strEQ(d,"chdir")) return KEY_chdir; | |
2442 | if (strEQ(d,"chmod")) return KEY_chmod; | |
2443 | if (strEQ(d,"chown")) return KEY_chown; | |
2444 | if (strEQ(d,"crypt")) return KEY_crypt; | |
2445 | break; | |
2446 | case 6: | |
2447 | if (strEQ(d,"chroot")) return KEY_chroot; | |
2448 | if (strEQ(d,"caller")) return KEY_caller; | |
2449 | break; | |
2450 | case 7: | |
2451 | if (strEQ(d,"connect")) return KEY_connect; | |
2452 | break; | |
2453 | case 8: | |
2454 | if (strEQ(d,"closedir")) return KEY_closedir; | |
2455 | if (strEQ(d,"continue")) return KEY_continue; | |
2456 | break; | |
2457 | } | |
2458 | break; | |
2459 | case 'd': | |
2460 | switch (len) { | |
2461 | case 2: | |
2462 | if (strEQ(d,"do")) return KEY_do; | |
2463 | break; | |
2464 | case 3: | |
2465 | if (strEQ(d,"die")) return KEY_die; | |
2466 | break; | |
2467 | case 4: | |
2468 | if (strEQ(d,"dump")) return KEY_dump; | |
2469 | break; | |
2470 | case 6: | |
2471 | if (strEQ(d,"delete")) return KEY_delete; | |
2472 | break; | |
2473 | case 7: | |
2474 | if (strEQ(d,"defined")) return KEY_defined; | |
2475 | if (strEQ(d,"dbmopen")) return KEY_dbmopen; | |
2476 | break; | |
2477 | case 8: | |
2478 | if (strEQ(d,"dbmclose")) return KEY_dbmclose; | |
2479 | break; | |
2480 | } | |
2481 | break; | |
2482 | case 'E': | |
2483 | if (strEQ(d,"EQ")) return KEY_eq; | |
2484 | if (strEQ(d,"END")) return KEY_END; | |
2485 | break; | |
2486 | case 'e': | |
2487 | switch (len) { | |
2488 | case 2: | |
2489 | if (strEQ(d,"eq")) return KEY_eq; | |
2490 | break; | |
2491 | case 3: | |
2492 | if (strEQ(d,"eof")) return KEY_eof; | |
2493 | if (strEQ(d,"exp")) return KEY_exp; | |
2494 | break; | |
2495 | case 4: | |
2496 | if (strEQ(d,"else")) return KEY_else; | |
2497 | if (strEQ(d,"exit")) return KEY_exit; | |
2498 | if (strEQ(d,"eval")) return KEY_eval; | |
2499 | if (strEQ(d,"exec")) return KEY_exec; | |
2500 | if (strEQ(d,"each")) return KEY_each; | |
2501 | break; | |
2502 | case 5: | |
2503 | if (strEQ(d,"elsif")) return KEY_elsif; | |
2504 | break; | |
2505 | case 8: | |
2506 | if (strEQ(d,"endgrent")) return KEY_endgrent; | |
2507 | if (strEQ(d,"endpwent")) return KEY_endpwent; | |
2508 | break; | |
2509 | case 9: | |
2510 | if (strEQ(d,"endnetent")) return KEY_endnetent; | |
2511 | break; | |
2512 | case 10: | |
2513 | if (strEQ(d,"endhostent")) return KEY_endhostent; | |
2514 | if (strEQ(d,"endservent")) return KEY_endservent; | |
2515 | break; | |
2516 | case 11: | |
2517 | if (strEQ(d,"endprotoent")) return KEY_endprotoent; | |
2518 | break; | |
a687059c | 2519 | } |
a687059c | 2520 | break; |
79072805 LW |
2521 | case 'f': |
2522 | switch (len) { | |
2523 | case 3: | |
2524 | if (strEQ(d,"for")) return KEY_for; | |
2525 | break; | |
2526 | case 4: | |
2527 | if (strEQ(d,"fork")) return KEY_fork; | |
2528 | break; | |
2529 | case 5: | |
2530 | if (strEQ(d,"fcntl")) return KEY_fcntl; | |
2531 | if (strEQ(d,"flock")) return KEY_flock; | |
2532 | break; | |
2533 | case 6: | |
2534 | if (strEQ(d,"format")) return KEY_format; | |
2535 | if (strEQ(d,"fileno")) return KEY_fileno; | |
2536 | break; | |
2537 | case 7: | |
2538 | if (strEQ(d,"foreach")) return KEY_foreach; | |
2539 | break; | |
2540 | case 8: | |
2541 | if (strEQ(d,"formline")) return KEY_formline; | |
2542 | break; | |
378cc40b | 2543 | } |
a687059c | 2544 | break; |
79072805 LW |
2545 | case 'G': |
2546 | if (len == 2) { | |
2547 | if (strEQ(d,"GT")) return KEY_gt; | |
2548 | if (strEQ(d,"GE")) return KEY_ge; | |
9f68db38 | 2549 | } |
a687059c | 2550 | break; |
79072805 | 2551 | case 'g': |
a687059c LW |
2552 | if (strnEQ(d,"get",3)) { |
2553 | d += 3; | |
2554 | if (*d == 'p') { | |
79072805 LW |
2555 | switch (len) { |
2556 | case 7: | |
2557 | if (strEQ(d,"ppid")) return KEY_getppid; | |
2558 | if (strEQ(d,"pgrp")) return KEY_getpgrp; | |
2559 | break; | |
2560 | case 8: | |
2561 | if (strEQ(d,"pwent")) return KEY_getpwent; | |
2562 | if (strEQ(d,"pwnam")) return KEY_getpwnam; | |
2563 | if (strEQ(d,"pwuid")) return KEY_getpwuid; | |
2564 | break; | |
2565 | case 11: | |
2566 | if (strEQ(d,"peername")) return KEY_getpeername; | |
2567 | if (strEQ(d,"protoent")) return KEY_getprotoent; | |
2568 | if (strEQ(d,"priority")) return KEY_getpriority; | |
2569 | break; | |
2570 | case 14: | |
2571 | if (strEQ(d,"protobyname")) return KEY_getprotobyname; | |
2572 | break; | |
2573 | case 16: | |
2574 | if (strEQ(d,"protobynumber"))return KEY_getprotobynumber; | |
2575 | break; | |
2576 | } | |
a687059c LW |
2577 | } |
2578 | else if (*d == 'h') { | |
79072805 LW |
2579 | if (strEQ(d,"hostbyname")) return KEY_gethostbyname; |
2580 | if (strEQ(d,"hostbyaddr")) return KEY_gethostbyaddr; | |
2581 | if (strEQ(d,"hostent")) return KEY_gethostent; | |
a687059c LW |
2582 | } |
2583 | else if (*d == 'n') { | |
79072805 LW |
2584 | if (strEQ(d,"netbyname")) return KEY_getnetbyname; |
2585 | if (strEQ(d,"netbyaddr")) return KEY_getnetbyaddr; | |
2586 | if (strEQ(d,"netent")) return KEY_getnetent; | |
a687059c LW |
2587 | } |
2588 | else if (*d == 's') { | |
79072805 LW |
2589 | if (strEQ(d,"servbyname")) return KEY_getservbyname; |
2590 | if (strEQ(d,"servbyport")) return KEY_getservbyport; | |
2591 | if (strEQ(d,"servent")) return KEY_getservent; | |
2592 | if (strEQ(d,"sockname")) return KEY_getsockname; | |
2593 | if (strEQ(d,"sockopt")) return KEY_getsockopt; | |
a687059c LW |
2594 | } |
2595 | else if (*d == 'g') { | |
79072805 LW |
2596 | if (strEQ(d,"grent")) return KEY_getgrent; |
2597 | if (strEQ(d,"grnam")) return KEY_getgrnam; | |
2598 | if (strEQ(d,"grgid")) return KEY_getgrgid; | |
a687059c LW |
2599 | } |
2600 | else if (*d == 'l') { | |
79072805 | 2601 | if (strEQ(d,"login")) return KEY_getlogin; |
a687059c | 2602 | } |
79072805 | 2603 | break; |
a687059c | 2604 | } |
79072805 LW |
2605 | switch (len) { |
2606 | case 2: | |
2607 | if (strEQ(d,"gt")) return KEY_gt; | |
2608 | if (strEQ(d,"ge")) return KEY_ge; | |
2609 | break; | |
2610 | case 4: | |
2611 | if (strEQ(d,"grep")) return KEY_grep; | |
2612 | if (strEQ(d,"goto")) return KEY_goto; | |
2613 | if (strEQ(d,"getc")) return KEY_getc; | |
93a17b20 | 2614 | if (strEQ(d,"glob")) return KEY_glob; |
79072805 LW |
2615 | break; |
2616 | case 6: | |
2617 | if (strEQ(d,"gmtime")) return KEY_gmtime; | |
2618 | break; | |
378cc40b | 2619 | } |
a687059c | 2620 | break; |
79072805 LW |
2621 | case 'h': |
2622 | if (strEQ(d,"hex")) return KEY_hex; | |
a687059c | 2623 | break; |
79072805 LW |
2624 | case 'i': |
2625 | switch (len) { | |
2626 | case 2: | |
2627 | if (strEQ(d,"if")) return KEY_if; | |
2628 | break; | |
2629 | case 3: | |
2630 | if (strEQ(d,"int")) return KEY_int; | |
2631 | break; | |
2632 | case 5: | |
2633 | if (strEQ(d,"index")) return KEY_index; | |
2634 | if (strEQ(d,"ioctl")) return KEY_ioctl; | |
2635 | break; | |
2636 | } | |
a687059c | 2637 | break; |
79072805 LW |
2638 | case 'j': |
2639 | if (strEQ(d,"join")) return KEY_join; | |
a687059c | 2640 | break; |
79072805 LW |
2641 | case 'k': |
2642 | if (len == 4) { | |
2643 | if (strEQ(d,"keys")) return KEY_keys; | |
2644 | if (strEQ(d,"kill")) return KEY_kill; | |
663a0e37 | 2645 | } |
79072805 LW |
2646 | break; |
2647 | case 'L': | |
2648 | if (len == 2) { | |
2649 | if (strEQ(d,"LT")) return KEY_lt; | |
2650 | if (strEQ(d,"LE")) return KEY_le; | |
378cc40b | 2651 | } |
79072805 LW |
2652 | break; |
2653 | case 'l': | |
2654 | switch (len) { | |
2655 | case 2: | |
2656 | if (strEQ(d,"lt")) return KEY_lt; | |
2657 | if (strEQ(d,"le")) return KEY_le; | |
2658 | if (strEQ(d,"lc")) return KEY_lc; | |
2659 | break; | |
2660 | case 3: | |
2661 | if (strEQ(d,"log")) return KEY_log; | |
2662 | break; | |
2663 | case 4: | |
2664 | if (strEQ(d,"last")) return KEY_last; | |
2665 | if (strEQ(d,"link")) return KEY_link; | |
395c3793 | 2666 | break; |
79072805 LW |
2667 | case 5: |
2668 | if (strEQ(d,"local")) return KEY_local; | |
2669 | if (strEQ(d,"lstat")) return KEY_lstat; | |
2670 | break; | |
2671 | case 6: | |
2672 | if (strEQ(d,"length")) return KEY_length; | |
2673 | if (strEQ(d,"listen")) return KEY_listen; | |
2674 | break; | |
2675 | case 7: | |
2676 | if (strEQ(d,"lcfirst")) return KEY_lcfirst; | |
2677 | break; | |
2678 | case 9: | |
2679 | if (strEQ(d,"localtime")) return KEY_localtime; | |
395c3793 LW |
2680 | break; |
2681 | } | |
a687059c | 2682 | break; |
79072805 LW |
2683 | case 'm': |
2684 | switch (len) { | |
2685 | case 1: return KEY_m; | |
93a17b20 LW |
2686 | case 2: |
2687 | if (strEQ(d,"my")) return KEY_my; | |
2688 | break; | |
79072805 LW |
2689 | case 5: |
2690 | if (strEQ(d,"mkdir")) return KEY_mkdir; | |
2691 | break; | |
2692 | case 6: | |
2693 | if (strEQ(d,"msgctl")) return KEY_msgctl; | |
2694 | if (strEQ(d,"msgget")) return KEY_msgget; | |
2695 | if (strEQ(d,"msgrcv")) return KEY_msgrcv; | |
2696 | if (strEQ(d,"msgsnd")) return KEY_msgsnd; | |
2697 | break; | |
2698 | } | |
a687059c | 2699 | break; |
79072805 LW |
2700 | case 'N': |
2701 | if (strEQ(d,"NE")) return KEY_ne; | |
a687059c | 2702 | break; |
79072805 LW |
2703 | case 'n': |
2704 | if (strEQ(d,"next")) return KEY_next; | |
2705 | if (strEQ(d,"ne")) return KEY_ne; | |
a687059c | 2706 | break; |
79072805 LW |
2707 | case 'o': |
2708 | switch (len) { | |
2709 | case 3: | |
2710 | if (strEQ(d,"ord")) return KEY_ord; | |
2711 | if (strEQ(d,"oct")) return KEY_oct; | |
2712 | break; | |
2713 | case 4: | |
2714 | if (strEQ(d,"open")) return KEY_open; | |
2715 | break; | |
2716 | case 7: | |
2717 | if (strEQ(d,"opendir")) return KEY_opendir; | |
2718 | break; | |
fe14fcc3 | 2719 | } |
a687059c | 2720 | break; |
79072805 LW |
2721 | case 'p': |
2722 | switch (len) { | |
2723 | case 3: | |
2724 | if (strEQ(d,"pop")) return KEY_pop; | |
2725 | break; | |
2726 | case 4: | |
2727 | if (strEQ(d,"push")) return KEY_push; | |
2728 | if (strEQ(d,"pack")) return KEY_pack; | |
2729 | if (strEQ(d,"pipe")) return KEY_pipe; | |
2730 | break; | |
2731 | case 5: | |
2732 | if (strEQ(d,"print")) return KEY_print; | |
2733 | break; | |
2734 | case 6: | |
2735 | if (strEQ(d,"printf")) return KEY_printf; | |
2736 | break; | |
2737 | case 7: | |
2738 | if (strEQ(d,"package")) return KEY_package; | |
2739 | break; | |
663a0e37 | 2740 | } |
79072805 LW |
2741 | break; |
2742 | case 'q': | |
2743 | if (len <= 2) { | |
2744 | if (strEQ(d,"q")) return KEY_q; | |
2745 | if (strEQ(d,"qq")) return KEY_qq; | |
2746 | if (strEQ(d,"qx")) return KEY_qx; | |
663a0e37 | 2747 | } |
79072805 LW |
2748 | break; |
2749 | case 'r': | |
2750 | switch (len) { | |
2751 | case 3: | |
2752 | if (strEQ(d,"ref")) return KEY_ref; | |
2753 | break; | |
2754 | case 4: | |
2755 | if (strEQ(d,"read")) return KEY_read; | |
2756 | if (strEQ(d,"rand")) return KEY_rand; | |
2757 | if (strEQ(d,"recv")) return KEY_recv; | |
2758 | if (strEQ(d,"redo")) return KEY_redo; | |
2759 | break; | |
2760 | case 5: | |
2761 | if (strEQ(d,"rmdir")) return KEY_rmdir; | |
2762 | if (strEQ(d,"reset")) return KEY_reset; | |
2763 | break; | |
2764 | case 6: | |
2765 | if (strEQ(d,"return")) return KEY_return; | |
2766 | if (strEQ(d,"rename")) return KEY_rename; | |
2767 | if (strEQ(d,"rindex")) return KEY_rindex; | |
2768 | break; | |
2769 | case 7: | |
2770 | if (strEQ(d,"require")) return KEY_require; | |
2771 | if (strEQ(d,"reverse")) return KEY_reverse; | |
2772 | if (strEQ(d,"readdir")) return KEY_readdir; | |
2773 | break; | |
2774 | case 8: | |
2775 | if (strEQ(d,"readlink")) return KEY_readlink; | |
93a17b20 LW |
2776 | if (strEQ(d,"readline")) return KEY_readline; |
2777 | if (strEQ(d,"readpipe")) return KEY_readpipe; | |
79072805 LW |
2778 | break; |
2779 | case 9: | |
2780 | if (strEQ(d,"rewinddir")) return KEY_rewinddir; | |
2781 | break; | |
a687059c | 2782 | } |
79072805 LW |
2783 | break; |
2784 | case 's': | |
a687059c | 2785 | switch (d[1]) { |
79072805 | 2786 | case 0: return KEY_s; |
a687059c | 2787 | case 'c': |
79072805 | 2788 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
2789 | break; |
2790 | case 'e': | |
79072805 LW |
2791 | switch (len) { |
2792 | case 4: | |
2793 | if (strEQ(d,"seek")) return KEY_seek; | |
2794 | if (strEQ(d,"send")) return KEY_send; | |
2795 | break; | |
2796 | case 5: | |
2797 | if (strEQ(d,"semop")) return KEY_semop; | |
2798 | break; | |
2799 | case 6: | |
2800 | if (strEQ(d,"select")) return KEY_select; | |
2801 | if (strEQ(d,"semctl")) return KEY_semctl; | |
2802 | if (strEQ(d,"semget")) return KEY_semget; | |
2803 | break; | |
2804 | case 7: | |
2805 | if (strEQ(d,"setpgrp")) return KEY_setpgrp; | |
2806 | if (strEQ(d,"seekdir")) return KEY_seekdir; | |
2807 | break; | |
2808 | case 8: | |
2809 | if (strEQ(d,"setpwent")) return KEY_setpwent; | |
2810 | if (strEQ(d,"setgrent")) return KEY_setgrent; | |
2811 | break; | |
2812 | case 9: | |
2813 | if (strEQ(d,"setnetent")) return KEY_setnetent; | |
2814 | break; | |
2815 | case 10: | |
2816 | if (strEQ(d,"setsockopt")) return KEY_setsockopt; | |
2817 | if (strEQ(d,"sethostent")) return KEY_sethostent; | |
2818 | if (strEQ(d,"setservent")) return KEY_setservent; | |
2819 | break; | |
2820 | case 11: | |
2821 | if (strEQ(d,"setpriority")) return KEY_setpriority; | |
2822 | if (strEQ(d,"setprotoent")) return KEY_setprotoent; | |
2823 | break; | |
2824 | } | |
a687059c LW |
2825 | break; |
2826 | case 'h': | |
79072805 LW |
2827 | switch (len) { |
2828 | case 5: | |
2829 | if (strEQ(d,"shift")) return KEY_shift; | |
2830 | break; | |
2831 | case 6: | |
2832 | if (strEQ(d,"shmctl")) return KEY_shmctl; | |
2833 | if (strEQ(d,"shmget")) return KEY_shmget; | |
2834 | break; | |
2835 | case 7: | |
2836 | if (strEQ(d,"shmread")) return KEY_shmread; | |
2837 | break; | |
2838 | case 8: | |
2839 | if (strEQ(d,"shmwrite")) return KEY_shmwrite; | |
2840 | if (strEQ(d,"shutdown")) return KEY_shutdown; | |
2841 | break; | |
2842 | } | |
a687059c LW |
2843 | break; |
2844 | case 'i': | |
79072805 | 2845 | if (strEQ(d,"sin")) return KEY_sin; |
a687059c LW |
2846 | break; |
2847 | case 'l': | |
79072805 | 2848 | if (strEQ(d,"sleep")) return KEY_sleep; |
a687059c LW |
2849 | break; |
2850 | case 'o': | |
79072805 LW |
2851 | if (strEQ(d,"sort")) return KEY_sort; |
2852 | if (strEQ(d,"socket")) return KEY_socket; | |
2853 | if (strEQ(d,"socketpair")) return KEY_socketpair; | |
a687059c LW |
2854 | break; |
2855 | case 'p': | |
79072805 LW |
2856 | if (strEQ(d,"split")) return KEY_split; |
2857 | if (strEQ(d,"sprintf")) return KEY_sprintf; | |
2858 | if (strEQ(d,"splice")) return KEY_splice; | |
a687059c LW |
2859 | break; |
2860 | case 'q': | |
79072805 | 2861 | if (strEQ(d,"sqrt")) return KEY_sqrt; |
a687059c LW |
2862 | break; |
2863 | case 'r': | |
79072805 | 2864 | if (strEQ(d,"srand")) return KEY_srand; |
a687059c LW |
2865 | break; |
2866 | case 't': | |
79072805 LW |
2867 | if (strEQ(d,"stat")) return KEY_stat; |
2868 | if (strEQ(d,"study")) return KEY_study; | |
a687059c LW |
2869 | break; |
2870 | case 'u': | |
79072805 LW |
2871 | if (strEQ(d,"substr")) return KEY_substr; |
2872 | if (strEQ(d,"sub")) return KEY_sub; | |
a687059c LW |
2873 | break; |
2874 | case 'y': | |
79072805 LW |
2875 | switch (len) { |
2876 | case 6: | |
2877 | if (strEQ(d,"system")) return KEY_system; | |
2878 | break; | |
2879 | case 7: | |
2880 | if (strEQ(d,"sysread")) return KEY_sysread; | |
2881 | if (strEQ(d,"symlink")) return KEY_symlink; | |
2882 | if (strEQ(d,"syscall")) return KEY_syscall; | |
2883 | break; | |
2884 | case 8: | |
2885 | if (strEQ(d,"syswrite")) return KEY_syswrite; | |
2886 | break; | |
a687059c | 2887 | } |
a687059c LW |
2888 | break; |
2889 | } | |
2890 | break; | |
79072805 LW |
2891 | case 't': |
2892 | switch (len) { | |
2893 | case 2: | |
2894 | if (strEQ(d,"tr")) return KEY_tr; | |
2895 | break; | |
2896 | case 4: | |
2897 | if (strEQ(d,"tell")) return KEY_tell; | |
2898 | if (strEQ(d,"time")) return KEY_time; | |
2899 | break; | |
2900 | case 5: | |
2901 | if (strEQ(d,"times")) return KEY_times; | |
2902 | break; | |
2903 | case 7: | |
2904 | if (strEQ(d,"telldir")) return KEY_telldir; | |
2905 | break; | |
2906 | case 8: | |
2907 | if (strEQ(d,"truncate")) return KEY_truncate; | |
2908 | break; | |
378cc40b | 2909 | } |
a687059c | 2910 | break; |
79072805 LW |
2911 | case 'u': |
2912 | switch (len) { | |
2913 | case 2: | |
2914 | if (strEQ(d,"uc")) return KEY_uc; | |
2915 | break; | |
2916 | case 5: | |
2917 | if (strEQ(d,"undef")) return KEY_undef; | |
2918 | if (strEQ(d,"until")) return KEY_until; | |
2919 | if (strEQ(d,"utime")) return KEY_utime; | |
2920 | if (strEQ(d,"umask")) return KEY_umask; | |
2921 | break; | |
2922 | case 6: | |
2923 | if (strEQ(d,"unless")) return KEY_unless; | |
2924 | if (strEQ(d,"unpack")) return KEY_unpack; | |
2925 | if (strEQ(d,"unlink")) return KEY_unlink; | |
2926 | break; | |
2927 | case 7: | |
2928 | if (strEQ(d,"unshift")) return KEY_unshift; | |
2929 | if (strEQ(d,"ucfirst")) return KEY_ucfirst; | |
2930 | break; | |
a687059c LW |
2931 | } |
2932 | break; | |
79072805 LW |
2933 | case 'v': |
2934 | if (strEQ(d,"values")) return KEY_values; | |
2935 | if (strEQ(d,"vec")) return KEY_vec; | |
a687059c | 2936 | break; |
79072805 LW |
2937 | case 'w': |
2938 | switch (len) { | |
2939 | case 4: | |
2940 | if (strEQ(d,"warn")) return KEY_warn; | |
2941 | if (strEQ(d,"wait")) return KEY_wait; | |
2942 | break; | |
2943 | case 5: | |
2944 | if (strEQ(d,"while")) return KEY_while; | |
2945 | if (strEQ(d,"write")) return KEY_write; | |
2946 | break; | |
2947 | case 7: | |
2948 | if (strEQ(d,"waitpid")) return KEY_waitpid; | |
2949 | break; | |
2950 | case 9: | |
2951 | if (strEQ(d,"wantarray")) return KEY_wantarray; | |
2952 | break; | |
2f3197b3 | 2953 | } |
a687059c | 2954 | break; |
79072805 LW |
2955 | case 'x': |
2956 | if (len == 1) return KEY_x; | |
a687059c | 2957 | break; |
79072805 LW |
2958 | case 'y': |
2959 | if (len == 1) return KEY_y; | |
2960 | break; | |
2961 | case 'z': | |
a687059c LW |
2962 | break; |
2963 | } | |
79072805 | 2964 | return 0; |
a687059c LW |
2965 | } |
2966 | ||
fe14fcc3 | 2967 | void |
2f3197b3 | 2968 | checkcomma(s,name,what) |
a687059c | 2969 | register char *s; |
2f3197b3 | 2970 | char *name; |
a687059c LW |
2971 | char *what; |
2972 | { | |
2f3197b3 LW |
2973 | char *w; |
2974 | ||
2975 | if (dowarn && *s == ' ' && s[1] == '(') { | |
93a17b20 | 2976 | w = strchr(s,')'); |
2f3197b3 LW |
2977 | if (w) |
2978 | for (w++; *w && isSPACE(*w); w++) ; | |
93a17b20 | 2979 | if (!w || !*w || !strchr(";|}", *w)) /* an advisory hack only... */ |
2f3197b3 LW |
2980 | warn("%s (...) interpreted as function",name); |
2981 | } | |
2982 | while (s < bufend && isSPACE(*s)) | |
2983 | s++; | |
a687059c LW |
2984 | if (*s == '(') |
2985 | s++; | |
de3bb511 | 2986 | while (s < bufend && isSPACE(*s)) |
a687059c | 2987 | s++; |
79072805 | 2988 | if (isIDFIRST(*s)) { |
2f3197b3 | 2989 | w = s++; |
de3bb511 | 2990 | while (isALNUM(*s)) |
a687059c | 2991 | s++; |
de3bb511 | 2992 | while (s < bufend && isSPACE(*s)) |
a687059c | 2993 | s++; |
e929a76b LW |
2994 | if (*s == ',') { |
2995 | *s = '\0'; | |
2f3197b3 | 2996 | w = instr( |
e929a76b LW |
2997 | "tell eof times getlogin wait length shift umask getppid \ |
2998 | cos exp int log rand sin sqrt ord wantarray", | |
2f3197b3 | 2999 | w); |
e929a76b | 3000 | *s = ','; |
2f3197b3 | 3001 | if (w) |
e929a76b | 3002 | return; |
a687059c | 3003 | fatal("No comma allowed after %s", what); |
e929a76b | 3004 | } |
378cc40b LW |
3005 | } |
3006 | } | |
3007 | ||
3008 | char * | |
79072805 | 3009 | scan_ident(s,send,dest,ck_uni) |
378cc40b | 3010 | register char *s; |
a687059c | 3011 | register char *send; |
378cc40b | 3012 | char *dest; |
79072805 | 3013 | I32 ck_uni; |
378cc40b LW |
3014 | { |
3015 | register char *d; | |
79072805 | 3016 | char *bracket = 0; |
378cc40b | 3017 | |
79072805 LW |
3018 | if (lex_brackets == 0) |
3019 | lex_fakebrack = 0; | |
378cc40b LW |
3020 | s++; |
3021 | d = dest; | |
de3bb511 LW |
3022 | if (isDIGIT(*s)) { |
3023 | while (isDIGIT(*s)) | |
378cc40b LW |
3024 | *d++ = *s++; |
3025 | } | |
3026 | else { | |
de3bb511 | 3027 | while (isALNUM(*s) || *s == '\'') |
378cc40b LW |
3028 | *d++ = *s++; |
3029 | } | |
663a0e37 | 3030 | while (d > dest+1 && d[-1] == '\'') |
a687059c | 3031 | d--,s--; |
378cc40b LW |
3032 | *d = '\0'; |
3033 | d = dest; | |
79072805 LW |
3034 | if (*d) { |
3035 | if (lex_state != LEX_NORMAL) | |
3036 | lex_state = LEX_INTERPENDMAYBE; | |
3037 | return s; | |
378cc40b | 3038 | } |
79072805 LW |
3039 | if (isSPACE(*s) || |
3040 | (*s == '$' && (isALPHA(s[1]) || s[1] == '$' || s[1] == '_'))) | |
3041 | return s; | |
3042 | if (*s == '{') { | |
3043 | bracket = s; | |
3044 | s++; | |
3045 | } | |
3046 | else if (ck_uni) | |
3047 | check_uni(); | |
93a17b20 | 3048 | if (s < send) |
79072805 LW |
3049 | *d = *s++; |
3050 | d[1] = '\0'; | |
93a17b20 | 3051 | if (*d == '^' && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
de3bb511 LW |
3052 | if (*s == 'D') |
3053 | debug |= 32768; | |
fe14fcc3 | 3054 | *d = *s++ ^ 64; |
de3bb511 | 3055 | } |
79072805 LW |
3056 | if (bracket) { |
3057 | if (isALPHA(*d) || *d == '_') { | |
3058 | d++; | |
3059 | while (isALNUM(*s)) | |
3060 | *d++ = *s++; | |
3061 | *d = '\0'; | |
3062 | if (*s == '[' || *s == '{') { | |
3063 | if (lex_brackets) | |
3064 | fatal("Can't use delimiter brackets within expression"); | |
3065 | lex_fakebrack = TRUE; | |
3066 | bracket++; | |
3067 | lex_brackets++; | |
3068 | return s; | |
3069 | } | |
3070 | } | |
3071 | if (*s == '}') { | |
3072 | s++; | |
3073 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) | |
3074 | lex_state = LEX_INTERPEND; | |
3075 | } | |
3076 | else { | |
3077 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 3078 | *dest = '\0'; |
79072805 LW |
3079 | } |
3080 | } | |
3081 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) | |
3082 | lex_state = LEX_INTERPEND; | |
378cc40b LW |
3083 | return s; |
3084 | } | |
3085 | ||
de3bb511 | 3086 | void |
79072805 LW |
3087 | scan_prefix(pm,string,len) |
3088 | PMOP *pm; | |
378cc40b | 3089 | char *string; |
79072805 | 3090 | I32 len; |
378cc40b | 3091 | { |
79072805 | 3092 | register SV *tmpstr; |
378cc40b LW |
3093 | register char *t; |
3094 | register char *d; | |
a687059c | 3095 | register char *e; |
d48672a2 | 3096 | char *origstring = string; |
378cc40b | 3097 | |
d48672a2 | 3098 | if (ninstr(string, string+len, vert, vert+1)) |
de3bb511 | 3099 | return; |
d48672a2 LW |
3100 | if (*string == '^') |
3101 | string++, len--; | |
79072805 LW |
3102 | tmpstr = NEWSV(86,len); |
3103 | sv_upgrade(tmpstr, SVt_PVBM); | |
3104 | sv_setpvn(tmpstr,string,len); | |
3105 | t = SvPVn(tmpstr); | |
a687059c | 3106 | e = t + len; |
79072805 | 3107 | BmUSEFUL(tmpstr) = 100; |
a687059c | 3108 | for (d=t; d < e; ) { |
378cc40b | 3109 | switch (*d) { |
a687059c | 3110 | case '{': |
de3bb511 | 3111 | if (isDIGIT(d[1])) |
a687059c LW |
3112 | e = d; |
3113 | else | |
3114 | goto defchar; | |
3115 | break; | |
3116 | case '.': case '[': case '$': case '(': case ')': case '|': case '+': | |
de3bb511 | 3117 | case '^': |
a687059c | 3118 | e = d; |
378cc40b LW |
3119 | break; |
3120 | case '\\': | |
93a17b20 | 3121 | if (d[1] && strchr("wWbB0123456789sSdDlLuUExc",d[1])) { |
a687059c | 3122 | e = d; |
378cc40b LW |
3123 | break; |
3124 | } | |
2f3197b3 | 3125 | Move(d+1,d,e-d,char); |
a687059c | 3126 | e--; |
378cc40b LW |
3127 | switch(*d) { |
3128 | case 'n': | |
3129 | *d = '\n'; | |
3130 | break; | |
3131 | case 't': | |
3132 | *d = '\t'; | |
3133 | break; | |
3134 | case 'f': | |
3135 | *d = '\f'; | |
3136 | break; | |
3137 | case 'r': | |
3138 | *d = '\r'; | |
3139 | break; | |
fe14fcc3 LW |
3140 | case 'e': |
3141 | *d = '\033'; | |
3142 | break; | |
3143 | case 'a': | |
3144 | *d = '\007'; | |
3145 | break; | |
378cc40b LW |
3146 | } |
3147 | /* FALL THROUGH */ | |
3148 | default: | |
a687059c LW |
3149 | defchar: |
3150 | if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') { | |
3151 | e = d; | |
378cc40b LW |
3152 | break; |
3153 | } | |
3154 | d++; | |
3155 | } | |
3156 | } | |
a687059c | 3157 | if (d == t) { |
79072805 | 3158 | sv_free(tmpstr); |
de3bb511 | 3159 | return; |
378cc40b | 3160 | } |
a687059c | 3161 | *d = '\0'; |
79072805 | 3162 | SvCUR_set(tmpstr, d - t); |
d48672a2 | 3163 | if (d == t+len) |
79072805 | 3164 | pm->op_pmflags |= PMf_ALL; |
d48672a2 | 3165 | if (*origstring != '^') |
79072805 LW |
3166 | pm->op_pmflags |= PMf_SCANFIRST; |
3167 | pm->op_pmshort = tmpstr; | |
3168 | pm->op_pmslen = d - t; | |
378cc40b LW |
3169 | } |
3170 | ||
3171 | char * | |
79072805 LW |
3172 | scan_pat(start) |
3173 | char *start; | |
378cc40b | 3174 | { |
79072805 LW |
3175 | PMOP *pm; |
3176 | char *s; | |
378cc40b | 3177 | |
79072805 | 3178 | multi_start = curcop->cop_line; |
378cc40b | 3179 | |
79072805 LW |
3180 | s = scan_str(start); |
3181 | if (!s) { | |
3182 | if (lex_stuff) | |
3183 | sv_free(lex_stuff); | |
3184 | lex_stuff = Nullsv; | |
3185 | fatal("Search pattern not terminated"); | |
378cc40b | 3186 | } |
79072805 LW |
3187 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
3188 | if (*start == '?') | |
3189 | pm->op_pmflags |= PMf_ONCE; | |
3190 | ||
d48672a2 | 3191 | while (*s == 'i' || *s == 'o' || *s == 'g') { |
a687059c LW |
3192 | if (*s == 'i') { |
3193 | s++; | |
3194 | sawi = TRUE; | |
79072805 | 3195 | pm->op_pmflags |= PMf_FOLD; |
a687059c LW |
3196 | } |
3197 | if (*s == 'o') { | |
3198 | s++; | |
79072805 | 3199 | pm->op_pmflags |= PMf_KEEP; |
a687059c | 3200 | } |
d48672a2 LW |
3201 | if (*s == 'g') { |
3202 | s++; | |
79072805 | 3203 | pm->op_pmflags |= PMf_GLOBAL; |
378cc40b LW |
3204 | } |
3205 | } | |
79072805 LW |
3206 | |
3207 | lex_op = (OP*)pm; | |
3208 | yylval.ival = OP_MATCH; | |
378cc40b LW |
3209 | return s; |
3210 | } | |
3211 | ||
3212 | char * | |
79072805 | 3213 | scan_subst(start) |
2f3197b3 | 3214 | char *start; |
79072805 LW |
3215 | { |
3216 | register char *s = start; | |
3217 | register PMOP *pm; | |
3218 | I32 es = 0; | |
3219 | ||
3220 | multi_start = curcop->cop_line; | |
3221 | yylval.ival = OP_NULL; | |
3222 | ||
3223 | s = scan_str(s); | |
3224 | ||
3225 | if (!s) { | |
3226 | if (lex_stuff) | |
3227 | sv_free(lex_stuff); | |
3228 | lex_stuff = Nullsv; | |
3229 | fatal("Substitution pattern not terminated"); | |
a687059c | 3230 | } |
79072805 LW |
3231 | |
3232 | if (s[-1] == *start) | |
3233 | s--; | |
3234 | ||
3235 | s = scan_str(s); | |
3236 | if (!s) { | |
3237 | if (lex_stuff) | |
3238 | sv_free(lex_stuff); | |
3239 | lex_stuff = Nullsv; | |
3240 | if (lex_repl) | |
3241 | sv_free(lex_repl); | |
3242 | lex_repl = Nullsv; | |
3243 | fatal("Substitution replacement not terminated"); | |
a687059c | 3244 | } |
2f3197b3 | 3245 | |
79072805 LW |
3246 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
3247 | while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') { | |
a687059c LW |
3248 | if (*s == 'e') { |
3249 | s++; | |
2f3197b3 | 3250 | es++; |
a687059c | 3251 | } |
378cc40b LW |
3252 | if (*s == 'g') { |
3253 | s++; | |
79072805 | 3254 | pm->op_pmflags |= PMf_GLOBAL; |
378cc40b LW |
3255 | } |
3256 | if (*s == 'i') { | |
3257 | s++; | |
a687059c | 3258 | sawi = TRUE; |
79072805 | 3259 | pm->op_pmflags |= PMf_FOLD; |
a687059c LW |
3260 | } |
3261 | if (*s == 'o') { | |
3262 | s++; | |
79072805 | 3263 | pm->op_pmflags |= PMf_KEEP; |
378cc40b LW |
3264 | } |
3265 | } | |
79072805 LW |
3266 | |
3267 | if (es) { | |
3268 | SV *repl; | |
3269 | pm->op_pmflags |= PMf_EVAL; | |
3270 | repl = NEWSV(93,0); | |
3271 | while (es-- > 0) { | |
3272 | es--; | |
3273 | sv_catpvn(repl, "eval ", 5); | |
3274 | } | |
3275 | sv_catpvn(repl, "{ ", 2); | |
3276 | sv_catsv(repl, lex_repl); | |
3277 | sv_catpvn(repl, " };", 2); | |
3278 | SvCOMPILED_on(repl); | |
3279 | sv_free(lex_repl); | |
3280 | lex_repl = repl; | |
378cc40b | 3281 | } |
79072805 LW |
3282 | |
3283 | lex_op = (OP*)pm; | |
3284 | yylval.ival = OP_SUBST; | |
378cc40b LW |
3285 | return s; |
3286 | } | |
3287 | ||
1462b684 | 3288 | void |
79072805 LW |
3289 | hoistmust(pm) |
3290 | register PMOP *pm; | |
378cc40b | 3291 | { |
79072805 LW |
3292 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
3293 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) | |
d48672a2 | 3294 | ) { |
79072805 LW |
3295 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
3296 | pm->op_pmflags |= PMf_SCANFIRST; | |
3297 | else if (pm->op_pmflags & PMf_FOLD) | |
1462b684 | 3298 | return; |
79072805 | 3299 | pm->op_pmshort = sv_ref(pm->op_pmregexp->regstart); |
d48672a2 | 3300 | } |
79072805 LW |
3301 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
3302 | if (pm->op_pmshort && | |
3303 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) | |
a687059c | 3304 | { |
79072805 LW |
3305 | if (pm->op_pmflags & PMf_SCANFIRST) { |
3306 | sv_free(pm->op_pmshort); | |
3307 | pm->op_pmshort = Nullsv; | |
378cc40b LW |
3308 | } |
3309 | else { | |
79072805 LW |
3310 | sv_free(pm->op_pmregexp->regmust); |
3311 | pm->op_pmregexp->regmust = Nullsv; | |
378cc40b LW |
3312 | return; |
3313 | } | |
3314 | } | |
79072805 LW |
3315 | if (!pm->op_pmshort || /* promote the better string */ |
3316 | ((pm->op_pmflags & PMf_SCANFIRST) && | |
3317 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){ | |
3318 | sv_free(pm->op_pmshort); /* ok if null */ | |
3319 | pm->op_pmshort = pm->op_pmregexp->regmust; | |
3320 | pm->op_pmregexp->regmust = Nullsv; | |
3321 | pm->op_pmflags |= PMf_SCANFIRST; | |
378cc40b LW |
3322 | } |
3323 | } | |
3324 | } | |
3325 | ||
3326 | char * | |
79072805 | 3327 | scan_trans(start) |
2f3197b3 | 3328 | char *start; |
378cc40b | 3329 | { |
2f3197b3 | 3330 | register char *s = start; |
79072805 LW |
3331 | OP *op; |
3332 | short *tbl; | |
3333 | I32 squash; | |
3334 | I32 delete; | |
3335 | I32 complement; | |
3336 | ||
3337 | yylval.ival = OP_NULL; | |
3338 | ||
3339 | s = scan_str(s); | |
3340 | if (!s) { | |
3341 | if (lex_stuff) | |
3342 | sv_free(lex_stuff); | |
3343 | lex_stuff = Nullsv; | |
3344 | fatal("Translation pattern not terminated"); | |
a687059c | 3345 | } |
2f3197b3 LW |
3346 | if (s[-1] == *start) |
3347 | s--; | |
3348 | ||
93a17b20 | 3349 | s = scan_str(s); |
79072805 LW |
3350 | if (!s) { |
3351 | if (lex_stuff) | |
3352 | sv_free(lex_stuff); | |
3353 | lex_stuff = Nullsv; | |
3354 | if (lex_repl) | |
3355 | sv_free(lex_repl); | |
3356 | lex_repl = Nullsv; | |
3357 | fatal("Translation replacement not terminated"); | |
a687059c | 3358 | } |
79072805 LW |
3359 | |
3360 | New(803,tbl,256,short); | |
3361 | op = newPVOP(OP_TRANS, 0, (char*)tbl); | |
2f3197b3 | 3362 | |
395c3793 LW |
3363 | complement = delete = squash = 0; |
3364 | while (*s == 'c' || *s == 'd' || *s == 's') { | |
3365 | if (*s == 'c') | |
79072805 | 3366 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 3367 | else if (*s == 'd') |
79072805 | 3368 | delete = OPpTRANS_DELETE; |
395c3793 | 3369 | else |
79072805 | 3370 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
3371 | s++; |
3372 | } | |
79072805 LW |
3373 | op->op_private = delete|squash|complement; |
3374 | ||
3375 | lex_op = op; | |
3376 | yylval.ival = OP_TRANS; | |
3377 | return s; | |
3378 | } | |
3379 | ||
3380 | char * | |
3381 | scan_heredoc(s) | |
3382 | register char *s; | |
3383 | { | |
3384 | SV *herewas; | |
3385 | I32 op_type = OP_SCALAR; | |
3386 | I32 len; | |
3387 | SV *tmpstr; | |
3388 | char term; | |
3389 | register char *d; | |
3390 | ||
3391 | s += 2; | |
3392 | d = tokenbuf; | |
3393 | if (!rsfp) | |
3394 | *d++ = '\n'; | |
93a17b20 | 3395 | if (*s && strchr("`'\"",*s)) { |
79072805 LW |
3396 | term = *s++; |
3397 | s = cpytill(d,s,bufend,term,&len); | |
3398 | if (s < bufend) | |
3399 | s++; | |
3400 | d += len; | |
3401 | } | |
3402 | else { | |
3403 | if (*s == '\\') | |
3404 | s++, term = '\''; | |
3405 | else | |
3406 | term = '"'; | |
3407 | while (isALNUM(*s)) | |
3408 | *d++ = *s++; | |
3409 | } /* assuming tokenbuf won't clobber */ | |
3410 | *d++ = '\n'; | |
3411 | *d = '\0'; | |
3412 | len = d - tokenbuf; | |
3413 | d = "\n"; | |
3414 | if (rsfp || !(d=ninstr(s,bufend,d,d+1))) | |
3415 | herewas = newSVpv(s,bufend-s); | |
3416 | else | |
3417 | s--, herewas = newSVpv(s,d-s); | |
3418 | s += SvCUR(herewas); | |
3419 | if (term == '\'') | |
3420 | op_type = OP_CONST; | |
3421 | if (term == '`') | |
3422 | op_type = OP_BACKTICK; | |
3423 | ||
3424 | CLINE; | |
3425 | multi_start = curcop->cop_line; | |
3426 | multi_open = multi_close = '<'; | |
3427 | tmpstr = NEWSV(87,80); | |
3428 | term = *tokenbuf; | |
3429 | if (!rsfp) { | |
3430 | d = s; | |
3431 | while (s < bufend && | |
3432 | (*s != term || bcmp(s,tokenbuf,len) != 0) ) { | |
3433 | if (*s++ == '\n') | |
3434 | curcop->cop_line++; | |
3435 | } | |
3436 | if (s >= bufend) { | |
3437 | curcop->cop_line = multi_start; | |
3438 | fatal("EOF in string"); | |
3439 | } | |
3440 | sv_setpvn(tmpstr,d+1,s-d); | |
3441 | s += len - 1; | |
3442 | sv_catpvn(herewas,s,bufend-s); | |
3443 | sv_setsv(linestr,herewas); | |
3444 | oldoldbufptr = oldbufptr = bufptr = s = SvPVn(linestr); | |
3445 | bufend = SvPV(linestr) + SvCUR(linestr); | |
3446 | } | |
3447 | else | |
3448 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3449 | while (s >= bufend) { /* multiple line string? */ | |
3450 | if (!rsfp || | |
3451 | !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) { | |
3452 | curcop->cop_line = multi_start; | |
3453 | fatal("EOF in string"); | |
3454 | } | |
3455 | curcop->cop_line++; | |
3456 | if (perldb) { | |
3457 | SV *sv = NEWSV(88,0); | |
3458 | ||
93a17b20 | 3459 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
3460 | sv_setsv(sv,linestr); |
3461 | av_store(GvAV(curcop->cop_filegv), | |
3462 | (I32)curcop->cop_line,sv); | |
3463 | } | |
3464 | bufend = SvPV(linestr) + SvCUR(linestr); | |
3465 | if (*s == term && bcmp(s,tokenbuf,len) == 0) { | |
3466 | s = bufend - 1; | |
3467 | *s = ' '; | |
3468 | sv_catsv(linestr,herewas); | |
3469 | bufend = SvPV(linestr) + SvCUR(linestr); | |
3470 | } | |
3471 | else { | |
3472 | s = bufend; | |
3473 | sv_catsv(tmpstr,linestr); | |
395c3793 LW |
3474 | } |
3475 | } | |
79072805 LW |
3476 | multi_end = curcop->cop_line; |
3477 | s++; | |
3478 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { | |
3479 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
3480 | Renew(SvPV(tmpstr), SvLEN(tmpstr), char); | |
3481 | } | |
3482 | sv_free(herewas); | |
3483 | lex_stuff = tmpstr; | |
3484 | yylval.ival = op_type; | |
3485 | return s; | |
3486 | } | |
3487 | ||
3488 | char * | |
3489 | scan_inputsymbol(start) | |
3490 | char *start; | |
3491 | { | |
3492 | register char *s = start; | |
3493 | register char *d; | |
3494 | I32 len; | |
3495 | ||
3496 | d = tokenbuf; | |
3497 | s = cpytill(d, s+1, bufend, '>', &len); | |
3498 | if (s < bufend) | |
3499 | s++; | |
3500 | else | |
3501 | fatal("Unterminated <> operator"); | |
3502 | ||
3503 | if (*d == '$') d++; | |
3504 | while (*d && (isALNUM(*d) || *d == '\'')) | |
3505 | d++; | |
3506 | if (d - tokenbuf != len) { | |
3507 | yylval.ival = OP_GLOB; | |
3508 | set_csh(); | |
3509 | s = scan_str(start); | |
3510 | if (!s) | |
3511 | fatal("Glob not terminated"); | |
3512 | return s; | |
3513 | } | |
395c3793 | 3514 | else { |
79072805 LW |
3515 | d = tokenbuf; |
3516 | if (!len) | |
3517 | (void)strcpy(d,"ARGV"); | |
3518 | if (*d == '$') { | |
3519 | GV *gv = gv_fetchpv(d+1,TRUE); | |
3520 | lex_op = (OP*)newUNOP(OP_READLINE, 0, | |
3521 | newUNOP(OP_RV2GV, 0, | |
3522 | newUNOP(OP_RV2SV, 0, | |
3523 | newGVOP(OP_GV, 0, gv)))); | |
3524 | yylval.ival = OP_NULL; | |
3525 | } | |
3526 | else { | |
3527 | IO *io; | |
3528 | ||
3529 | GV *gv = gv_fetchpv(d,TRUE); | |
3530 | io = GvIOn(gv); | |
3531 | if (strEQ(d,"ARGV")) { | |
3532 | GvAVn(gv); | |
3533 | io->flags |= IOf_ARGV|IOf_START; | |
395c3793 | 3534 | } |
79072805 LW |
3535 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
3536 | yylval.ival = OP_NULL; | |
3537 | } | |
3538 | } | |
3539 | return s; | |
3540 | } | |
3541 | ||
3542 | char * | |
3543 | scan_str(start) | |
3544 | char *start; | |
3545 | { | |
93a17b20 | 3546 | SV *sv; |
79072805 LW |
3547 | char *tmps; |
3548 | register char *s = start; | |
3549 | register char term = *s; | |
93a17b20 LW |
3550 | register char *to; |
3551 | I32 brackets = 1; | |
79072805 LW |
3552 | |
3553 | CLINE; | |
3554 | multi_start = curcop->cop_line; | |
3555 | multi_open = term; | |
93a17b20 | 3556 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 LW |
3557 | term = tmps[5]; |
3558 | multi_close = term; | |
3559 | ||
93a17b20 LW |
3560 | sv = NEWSV(87,80); |
3561 | sv_upgrade(sv, SVt_PV); | |
3562 | SvSTORAGE(sv) = term; | |
3563 | SvPOK_only(sv); /* validate pointer */ | |
3564 | s++; | |
3565 | for (;;) { | |
3566 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); | |
3567 | to = SvPV(sv)+SvCUR(sv); | |
3568 | if (multi_open == multi_close) { | |
3569 | for (; s < bufend; s++,to++) { | |
3570 | if (*s == '\\' && s+1 < bufend && term != '\\') | |
3571 | *to++ = *s++; | |
3572 | else if (*s == term) | |
3573 | break; | |
3574 | *to = *s; | |
3575 | } | |
3576 | } | |
3577 | else { | |
3578 | for (; s < bufend; s++,to++) { | |
3579 | if (*s == '\\' && s+1 < bufend && term != '\\') | |
3580 | *to++ = *s++; | |
3581 | else if (*s == term && --brackets <= 0) | |
3582 | break; | |
3583 | else if (*s == multi_open) | |
3584 | brackets++; | |
3585 | *to = *s; | |
3586 | } | |
3587 | } | |
3588 | *to = '\0'; | |
3589 | SvCUR_set(sv, to - SvPV(sv)); | |
3590 | ||
3591 | if (s < bufend) break; /* string ends on this line? */ | |
79072805 | 3592 | |
79072805 LW |
3593 | if (!rsfp || |
3594 | !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) { | |
3595 | curcop->cop_line = multi_start; | |
3596 | return Nullch; | |
3597 | } | |
3598 | curcop->cop_line++; | |
3599 | if (perldb) { | |
3600 | SV *sv = NEWSV(88,0); | |
3601 | ||
93a17b20 | 3602 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
3603 | sv_setsv(sv,linestr); |
3604 | av_store(GvAV(curcop->cop_filegv), | |
3605 | (I32)curcop->cop_line, sv); | |
395c3793 | 3606 | } |
79072805 | 3607 | bufend = SvPV(linestr) + SvCUR(linestr); |
378cc40b | 3608 | } |
79072805 LW |
3609 | multi_end = curcop->cop_line; |
3610 | s++; | |
93a17b20 LW |
3611 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
3612 | SvLEN_set(sv, SvCUR(sv) + 1); | |
3613 | Renew(SvPV(sv), SvLEN(sv), char); | |
79072805 LW |
3614 | } |
3615 | if (lex_stuff) | |
93a17b20 | 3616 | lex_repl = sv; |
79072805 | 3617 | else |
93a17b20 | 3618 | lex_stuff = sv; |
378cc40b LW |
3619 | return s; |
3620 | } | |
3621 | ||
3622 | char * | |
79072805 | 3623 | scan_num(start) |
2f3197b3 | 3624 | char *start; |
378cc40b | 3625 | { |
2f3197b3 | 3626 | register char *s = start; |
378cc40b | 3627 | register char *d; |
79072805 LW |
3628 | I32 tryi32; |
3629 | double value; | |
3630 | SV *sv; | |
3631 | I32 floatit; | |
93a17b20 | 3632 | char *lastub = 0; |
378cc40b LW |
3633 | |
3634 | switch (*s) { | |
79072805 LW |
3635 | default: |
3636 | fatal("panic: scan_num"); | |
378cc40b LW |
3637 | case '0': |
3638 | { | |
79072805 LW |
3639 | U32 i; |
3640 | I32 shift; | |
378cc40b | 3641 | |
378cc40b LW |
3642 | if (s[1] == 'x') { |
3643 | shift = 4; | |
3644 | s += 2; | |
3645 | } | |
3646 | else if (s[1] == '.') | |
3647 | goto decimal; | |
3648 | else | |
3649 | shift = 3; | |
3650 | i = 0; | |
3651 | for (;;) { | |
3652 | switch (*s) { | |
3653 | default: | |
3654 | goto out; | |
de3bb511 LW |
3655 | case '_': |
3656 | s++; | |
3657 | break; | |
378cc40b LW |
3658 | case '8': case '9': |
3659 | if (shift != 4) | |
a687059c | 3660 | yyerror("Illegal octal digit"); |
378cc40b LW |
3661 | /* FALL THROUGH */ |
3662 | case '0': case '1': case '2': case '3': case '4': | |
3663 | case '5': case '6': case '7': | |
3664 | i <<= shift; | |
3665 | i += *s++ & 15; | |
3666 | break; | |
3667 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
3668 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
3669 | if (shift != 4) | |
3670 | goto out; | |
3671 | i <<= 4; | |
3672 | i += (*s++ & 7) + 9; | |
3673 | break; | |
3674 | } | |
3675 | } | |
3676 | out: | |
79072805 LW |
3677 | sv = NEWSV(92,0); |
3678 | tryi32 = i; | |
3679 | if (tryi32 == i && tryi32 >= 0) | |
3680 | sv_setiv(sv,tryi32); | |
3681 | else | |
3682 | sv_setnv(sv,(double)i); | |
378cc40b LW |
3683 | } |
3684 | break; | |
3685 | case '1': case '2': case '3': case '4': case '5': | |
3686 | case '6': case '7': case '8': case '9': case '.': | |
3687 | decimal: | |
378cc40b | 3688 | d = tokenbuf; |
79072805 | 3689 | floatit = FALSE; |
de3bb511 | 3690 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 LW |
3691 | if (*s == '_') { |
3692 | if (dowarn && lastub && s - lastub != 3) | |
3693 | warn("Misplaced _"); | |
3694 | lastub = ++s; | |
3695 | } | |
378cc40b LW |
3696 | else |
3697 | *d++ = *s++; | |
3698 | } | |
93a17b20 LW |
3699 | if (dowarn && lastub && s - lastub != 3) |
3700 | warn("Misplaced _"); | |
2f3197b3 | 3701 | if (*s == '.' && s[1] != '.') { |
79072805 | 3702 | floatit = TRUE; |
378cc40b | 3703 | *d++ = *s++; |
de3bb511 | 3704 | while (isDIGIT(*s) || *s == '_') { |
378cc40b LW |
3705 | if (*s == '_') |
3706 | s++; | |
3707 | else | |
3708 | *d++ = *s++; | |
3709 | } | |
3710 | } | |
93a17b20 | 3711 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
3712 | floatit = TRUE; |
3713 | s++; | |
3714 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ | |
378cc40b LW |
3715 | if (*s == '+' || *s == '-') |
3716 | *d++ = *s++; | |
de3bb511 | 3717 | while (isDIGIT(*s)) |
378cc40b LW |
3718 | *d++ = *s++; |
3719 | } | |
3720 | *d = '\0'; | |
79072805 LW |
3721 | sv = NEWSV(92,0); |
3722 | value = atof(tokenbuf); | |
3723 | tryi32 = (I32)value; | |
3724 | if (!floatit && (double)tryi32 == value) | |
3725 | sv_setiv(sv,tryi32); | |
2f3197b3 | 3726 | else |
79072805 | 3727 | sv_setnv(sv,value); |
378cc40b | 3728 | break; |
79072805 | 3729 | } |
a687059c | 3730 | |
79072805 | 3731 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c | 3732 | |
378cc40b LW |
3733 | return s; |
3734 | } | |
3735 | ||
79072805 LW |
3736 | char * |
3737 | scan_formline(s) | |
3738 | register char *s; | |
378cc40b | 3739 | { |
79072805 | 3740 | register char *eol; |
378cc40b | 3741 | register char *t; |
79072805 LW |
3742 | SV *stuff = NEWSV(0,0); |
3743 | bool needargs = FALSE; | |
378cc40b | 3744 | |
79072805 LW |
3745 | while (!needargs) { |
3746 | if (*s == '.') { | |
3747 | /*SUPPRESS 530*/ | |
3748 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; | |
3749 | if (*t == '\n') | |
3750 | break; | |
3751 | } | |
0f85fab0 | 3752 | if (in_eval && !rsfp) { |
93a17b20 | 3753 | eol = strchr(s,'\n'); |
0f85fab0 LW |
3754 | if (!eol++) |
3755 | eol = bufend; | |
3756 | } | |
3757 | else | |
79072805 LW |
3758 | eol = bufend = SvPV(linestr) + SvCUR(linestr); |
3759 | if (*s != '#') { | |
3760 | sv_catpvn(stuff, s, eol-s); | |
3761 | while (s < eol) { | |
3762 | if (*s == '@' || *s == '^') { | |
3763 | needargs = TRUE; | |
3764 | break; | |
378cc40b | 3765 | } |
79072805 | 3766 | s++; |
378cc40b | 3767 | } |
79072805 LW |
3768 | } |
3769 | s = eol; | |
3770 | if (rsfp) { | |
3771 | s = sv_gets(linestr, rsfp, 0); | |
3772 | oldoldbufptr = oldbufptr = bufptr = SvPVn(linestr); | |
3773 | if (!s) { | |
3774 | s = bufptr; | |
3775 | yyerror("Format not terminated"); | |
378cc40b LW |
3776 | break; |
3777 | } | |
378cc40b | 3778 | } |
79072805 LW |
3779 | curcop->cop_line++; |
3780 | } | |
3781 | if (SvPOK(stuff)) { | |
3782 | if (needargs) { | |
3783 | nextval[nexttoke].ival = 0; | |
3784 | force_next(','); | |
3785 | } | |
3786 | else | |
3787 | in_format = 2; | |
3788 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); | |
3789 | force_next(THING); | |
3790 | nextval[nexttoke].ival = OP_FORMLINE; | |
3791 | force_next(LSTOP); | |
378cc40b | 3792 | } |
79072805 LW |
3793 | else { |
3794 | sv_free(stuff); | |
3795 | in_format = 0; | |
3796 | bufptr = s; | |
3797 | } | |
3798 | return s; | |
378cc40b | 3799 | } |
a687059c | 3800 | |
2f3197b3 | 3801 | static void |
a687059c LW |
3802 | set_csh() |
3803 | { | |
ae986130 LW |
3804 | #ifdef CSH |
3805 | if (!cshlen) | |
3806 | cshlen = strlen(cshname); | |
3807 | #endif | |
a687059c | 3808 | } |