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Add tests for new strict untie
[perl5.git] / toke.c
CommitLineData
a0d0e21e 1/* toke.c
a687059c 2 *
a0d0e21e 3 * Copyright (c) 1991-1994, 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 7 *
a0d0e21e
LW		 8 */
9
10/*
11 * "It all comes from here, the stench and the peril." --Frodo
378cc40b
LW		 12 */
13
14#include "EXTERN.h"
15#include "perl.h"
378cc40b 16
a0d0e21e
LW		 17static void check_uni _((void));
18static void force_next _((I32 type));
19static char *force_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick));
20static SV *q _((SV *sv));
21static char *scan_const _((char *start));
22static char *scan_formline _((char *s));
23static char *scan_heredoc _((char *s));
24static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni));
25static char *scan_inputsymbol _((char *start));
26static char *scan_pat _((char *start));
27static char *scan_str _((char *start));
28static char *scan_subst _((char *start));
29static char *scan_trans _((char *start));
30static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp));
31static char *skipspace _((char *s));
32static void checkcomma _((char *s, char *name, char *what));
33static void force_ident _((char *s, int kind));
34static void incline _((char *s));
35static int intuit_method _((char *s, GV *gv));
36static int intuit_more _((char *s));
37static I32 lop _((I32 f, expectation x, char *s));
38static void missingterm _((char *s));
39static void no_op _((char *what, char *s));
40static void set_csh _((void));
41static I32 sublex_done _((void));
42static I32 sublex_start _((void));
43#ifdef CRIPPLED_CC
44static int uni _((I32 f, char *s));
45#endif
16d20bd9 46static char * filter_gets _((SV *sv, FILE *fp));
6d5fb7e3 47static void restore_rsfp _((void *f));
2f3197b3 48
79072805
LW		 49/* The following are arranged oddly so that the guard on the switch statement
50 * can get by with a single comparison (if the compiler is smart enough).
51 */
52
a0d0e21e
LW		 53#define LEX_NORMAL 9
54#define LEX_INTERPNORMAL 8
55#define LEX_INTERPCASEMOD 7
56#define LEX_INTERPSTART 6
57#define LEX_INTERPEND 5
58#define LEX_INTERPENDMAYBE 4
59#define LEX_INTERPCONCAT 3
60#define LEX_INTERPCONST 2
61#define LEX_FORMLINE 1
79072805
LW		 62#define LEX_KNOWNEXT 0
63
395c3793
LW		 64#ifdef I_FCNTL
65#include <fcntl.h>
66#endif
fe14fcc3
LW		 67#ifdef I_SYS_FILE
68#include <sys/file.h>
69#endif
395c3793 70
79072805
LW		 71#ifdef ff_next
72#undef ff_next
d48672a2
LW		 73#endif
74
79072805 75#include "keywords.h"
fe14fcc3 76
ae986130
LW		 77#ifdef CLINE
78#undef CLINE
79#endif
79072805 80#define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
378cc40b 81
79072805
LW		 82#define TOKEN(retval) return (bufptr = s,(int)retval)
83#define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
a0d0e21e 84#define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
79072805 85#define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
a0d0e21e 86#define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
79072805
LW		 87#define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
88#define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
463ee0b2 89#define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
79072805
LW		 90#define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
91#define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
92#define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
a0d0e21e
LW		 93#define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
94#define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
95#define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
96#define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
79072805 97#define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
a0d0e21e
LW		 98#define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
99#define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
79072805
LW		 100#define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
101#define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
2f3197b3 102
a687059c
LW		 103/* This bit of chicanery makes a unary function followed by
104 * a parenthesis into a function with one argument, highest precedence.
105 */
2f3197b3 106#define UNI(f) return(yylval.ival = f, \
79072805 107 expect = XTERM, \
2f3197b3
LW		 108 bufptr = s, \
109 last_uni = oldbufptr, \
a0d0e21e 110 last_lop_op = f, \
a687059c
LW		 111 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
112
79072805
LW		 113#define UNIBRACK(f) return(yylval.ival = f, \
114 bufptr = s, \
115 last_uni = oldbufptr, \
116 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
117
9f68db38 118/* grandfather return to old style */
79072805
LW		 119#define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
120
a0d0e21e
LW		 121static int
122ao(toketype)
123int toketype;
124{
125 if (*bufptr == '=') {
126 bufptr++;
127 if (toketype == ANDAND)
128 yylval.ival = OP_ANDASSIGN;
129 else if (toketype == OROR)
130 yylval.ival = OP_ORASSIGN;
131 toketype = ASSIGNOP;
132 }
133 return toketype;
134}
135
8990e307
LW		 136static void
137no_op(what, s)
463ee0b2 138char *what;
8990e307 139char *s;
463ee0b2 140{
8990e307 141 char tmpbuf[128];
748a9306
LW		 142 char *oldbp = bufptr;
143 bool is_first = (oldbufptr == SvPVX(linestr));
8990e307
LW		 144 bufptr = s;
145 sprintf(tmpbuf, "%s found where operator expected", what);
146 yywarn(tmpbuf);
748a9306 147 if (is_first)
a0d0e21e 148 warn("\t(Missing semicolon on previous line?)\n");
748a9306
LW		 149 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
150 char *t;
151 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
152 if (t < bufptr && isSPACE(*t))
153 warn("\t(Do you need to predeclare %.*s?)\n",
154 t - oldoldbufptr, oldoldbufptr);
155
156 }
157 else
158 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
159 bufptr = oldbp;
8990e307
LW		 160}
161
162static void
163missingterm(s)
164char *s;
165{
166 char tmpbuf[3];
167 char q;
168 if (s) {
169 char *nl = strrchr(s,'\n');
170 if (nl)
171 *nl = '\0';
172 }
173 else if (multi_close < 32 || multi_close == 127) {
174 *tmpbuf = '^';
175 tmpbuf[1] = multi_close ^ 64;
176 s = "\\n";
177 tmpbuf[2] = '\0';
178 s = tmpbuf;
179 }
180 else {
181 *tmpbuf = multi_close;
182 tmpbuf[1] = '\0';
183 s = tmpbuf;
184 }
185 q = strchr(s,'"') ? '\'' : '"';
186 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
463ee0b2 187}
79072805
LW		 188
189void
a0d0e21e
LW		 190deprecate(s)
191char *s;
192{
193 if (dowarn)
194 warn("Use of %s is deprecated", s);
195}
196
197static void
198depcom()
199{
200 deprecate("comma-less variable list");
201}
202
203void
8990e307
LW		 204lex_start(line)
205SV *line;
79072805 206{
8990e307
LW		 207 char *s;
208 STRLEN len;
209
463ee0b2
LW		 210 SAVEINT(lex_dojoin);
211 SAVEINT(lex_brackets);
212 SAVEINT(lex_fakebrack);
213 SAVEINT(lex_casemods);
214 SAVEINT(lex_starts);
215 SAVEINT(lex_state);
a0d0e21e 216 SAVESPTR(lex_inpat);
463ee0b2
LW		 217 SAVEINT(lex_inwhat);
218 SAVEINT(curcop->cop_line);
85e6fe83
LW		 219 SAVEPPTR(bufptr);
220 SAVEPPTR(bufend);
221 SAVEPPTR(oldbufptr);
222 SAVEPPTR(oldoldbufptr);
463ee0b2 223 SAVESPTR(linestr);
85e6fe83 224 SAVEPPTR(lex_brackstack);
a0d0e21e 225 SAVEPPTR(lex_casestack);
6d5fb7e3 226 SAVEDESTRUCTOR(restore_rsfp, rsfp);
463ee0b2 227
79072805
LW		 228 lex_state = LEX_NORMAL;
229 lex_defer = 0;
8990e307 230 expect = XSTATE;
79072805
LW		 231 lex_brackets = 0;
232 lex_fakebrack = 0;
8990e307 233 New(899, lex_brackstack, 120, char);
a0d0e21e 234 New(899, lex_casestack, 12, char);
8990e307 235 SAVEFREEPV(lex_brackstack);
a0d0e21e 236 SAVEFREEPV(lex_casestack);
79072805 237 lex_casemods = 0;
a0d0e21e 238 *lex_casestack = '\0';
79072805
LW		 239 lex_dojoin = 0;
240 lex_starts = 0;
241 if (lex_stuff)
8990e307 242 SvREFCNT_dec(lex_stuff);
79072805
LW		 243 lex_stuff = Nullsv;
244 if (lex_repl)
8990e307 245 SvREFCNT_dec(lex_repl);
79072805
LW		 246 lex_repl = Nullsv;
247 lex_inpat = 0;
248 lex_inwhat = 0;
8990e307
LW		 249 linestr = line;
250 if (SvREADONLY(linestr))
251 linestr = sv_2mortal(newSVsv(linestr));
252 s = SvPV(linestr, len);
253 if (len && s[len-1] != ';') {
a0d0e21e 254 if (!(SvFLAGS(linestr) & SVs_TEMP))
8990e307
LW		 255 linestr = sv_2mortal(newSVsv(linestr));
256 sv_catpvn(linestr, "\n;", 2);
257 }
258 SvTEMP_off(linestr);
463ee0b2 259 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
79072805 260 bufend = bufptr + SvCUR(linestr);
c07a80fd 261 SvREFCNT_dec(rs);
262 rs = newSVpv("\n", 1);
8990e307 263 rsfp = 0;
79072805 264}
a687059c 265
463ee0b2
LW		 266void
267lex_end()
268{
463ee0b2
LW		 269}
270
271static void
6d5fb7e3
CS		 272restore_rsfp(f)
273void *f;
274{
275 FILE *fp = (FILE*)f;
276
277 if (rsfp == stdin)
278 clearerr(rsfp);
a5f75d66 279 else if (rsfp && (rsfp != fp))
6d5fb7e3
CS		 280 fclose(rsfp);
281 rsfp = fp;
282}
283
284static void
463ee0b2
LW		 285incline(s)
286char *s;
287{
288 char *t;
289 char *n;
290 char ch;
291 int sawline = 0;
292
293 curcop->cop_line++;
294 if (*s++ != '#')
295 return;
296 while (*s == ' ' || *s == '\t') s++;
297 if (strnEQ(s, "line ", 5)) {
298 s += 5;
299 sawline = 1;
300 }
301 if (!isDIGIT(*s))
302 return;
303 n = s;
304 while (isDIGIT(*s))
305 s++;
306 while (*s == ' ' || *s == '\t')
307 s++;
308 if (*s == '"' && (t = strchr(s+1, '"')))
309 s++;
310 else {
311 if (!sawline)
312 return; /* false alarm */
313 for (t = s; !isSPACE(*t); t++) ;
314 }
315 ch = *t;
316 *t = '\0';
317 if (t - s > 0)
318 curcop->cop_filegv = gv_fetchfile(s);
319 else
320 curcop->cop_filegv = gv_fetchfile(origfilename);
321 *t = ch;
322 curcop->cop_line = atoi(n)-1;
323}
324
8990e307 325static char *
a687059c
LW		 326skipspace(s)
327register char *s;
328{
85e6fe83 329 if (lex_formbrack && lex_brackets <= lex_formbrack) {
463ee0b2
LW		 330 while (s < bufend && (*s == ' ' || *s == '\t'))
331 s++;
332 return s;
333 }
334 for (;;) {
335 while (s < bufend && isSPACE(*s))
336 s++;
337 if (s < bufend && *s == '#') {
338 while (s < bufend && *s != '\n')
339 s++;
340 if (s < bufend)
341 s++;
342 }
a0d0e21e 343 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
463ee0b2 344 return s;
16d20bd9 345 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
a0d0e21e
LW		 346 if (minus_n || minus_p) {
347 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
348 sv_catpv(linestr,";}");
349 minus_n = minus_p = 0;
350 }
351 else
352 sv_setpv(linestr,";");
8990e307 353 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
a0d0e21e
LW		 354 bufend = SvPVX(linestr) + SvCUR(linestr);
355 if (preprocess && !in_eval)
8990e307
LW		 356 (void)my_pclose(rsfp);
357 else if ((FILE*)rsfp == stdin)
358 clearerr(stdin);
359 else
360 (void)fclose(rsfp);
361 rsfp = Nullfp;
463ee0b2
LW		 362 return s;
363 }
364 oldoldbufptr = oldbufptr = bufptr = s;
365 bufend = bufptr + SvCUR(linestr);
a0d0e21e 366 incline(s);
8990e307
LW		 367 if (perldb && curstash != debstash) {
368 SV *sv = NEWSV(85,0);
369
370 sv_upgrade(sv, SVt_PVMG);
371 sv_setsv(sv,linestr);
372 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
373 }
463ee0b2 374 }
a687059c 375}
378cc40b 376
8990e307 377static void
2f3197b3
LW		 378check_uni() {
379 char *s;
380 char ch;
a0d0e21e 381 char *t;
2f3197b3
LW		 382
383 if (oldoldbufptr != last_uni)
384 return;
385 while (isSPACE(*last_uni))
386 last_uni++;
e334a159 387 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
a0d0e21e
LW		 388 if ((t = strchr(s, '(')) && t < bufptr)
389 return;
2f3197b3
LW		 390 ch = *s;
391 *s = '\0';
392 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
393 *s = ch;
394}
395
ffed7fef
LW		 396#ifdef CRIPPLED_CC
397
398#undef UNI
ffed7fef 399#define UNI(f) return uni(f,s)
ffed7fef 400
8990e307 401static int
ffed7fef 402uni(f,s)
79072805 403I32 f;
ffed7fef
LW		 404char *s;
405{
406 yylval.ival = f;
79072805 407 expect = XTERM;
ffed7fef 408 bufptr = s;
2f3197b3 409 last_uni = oldbufptr;
a0d0e21e 410 last_lop_op = f;
ffed7fef
LW		 411 if (*s == '(')
412 return FUNC1;
413 s = skipspace(s);
414 if (*s == '(')
415 return FUNC1;
416 else
417 return UNIOP;
418}
419
a0d0e21e
LW		 420#endif /* CRIPPLED_CC */
421
422#define LOP(f,x) return lop(f,x,s)
423
8990e307 424static I32
a0d0e21e 425lop(f,x,s)
79072805 426I32 f;
a0d0e21e 427expectation x;
ffed7fef
LW		 428char *s;
429{
79072805 430 yylval.ival = f;
35c8bce7 431 CLINE;
a0d0e21e 432 expect = x;
79072805 433 bufptr = s;
8990e307
LW		 434 last_lop = oldbufptr;
435 last_lop_op = f;
a0d0e21e
LW		 436 if (nexttoke)
437 return LSTOP;
79072805
LW		 438 if (*s == '(')
439 return FUNC;
440 s = skipspace(s);
441 if (*s == '(')
442 return FUNC;
443 else
444 return LSTOP;
445}
446
8990e307 447static void
79072805
LW		 448force_next(type)
449I32 type;
450{
451 nexttype[nexttoke] = type;
452 nexttoke++;
453 if (lex_state != LEX_KNOWNEXT) {
454 lex_defer = lex_state;
463ee0b2 455 lex_expect = expect;
79072805
LW		 456 lex_state = LEX_KNOWNEXT;
457 }
458}
459
8990e307 460static char *
a0d0e21e 461force_word(start,token,check_keyword,allow_pack,allow_tick)
463ee0b2 462register char *start;
79072805 463int token;
463ee0b2 464int check_keyword;
a0d0e21e 465int allow_pack;
463ee0b2 466int allow_tick;
79072805 467{
463ee0b2
LW		 468 register char *s;
469 STRLEN len;
470
471 start = skipspace(start);
472 s = start;
a0d0e21e
LW		 473 if (isIDFIRST(*s) ||
474 (allow_pack && *s == ':') ||
475 (allow_tick && *s == '\'') )
476 {
477 s = scan_word(s, tokenbuf, allow_pack, &len);
463ee0b2
LW		 478 if (check_keyword && keyword(tokenbuf, len))
479 return start;
480 if (token == METHOD) {
481 s = skipspace(s);
482 if (*s == '(')
483 expect = XTERM;
484 else {
485 expect = XOPERATOR;
486 force_next(')');
487 force_next('(');
488 }
79072805 489 }
463ee0b2 490 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
8990e307 491 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
79072805
LW		 492 force_next(token);
493 }
494 return s;
495}
496
8990e307 497static void
a0d0e21e 498force_ident(s, kind)
79072805 499register char *s;
a0d0e21e 500int kind;
79072805
LW		 501{
502 if (s && *s) {
748a9306
LW		 503 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
504 nextval[nexttoke].opval = op;
79072805 505 force_next(WORD);
748a9306
LW		 506 if (kind) {
507 op->op_private = OPpCONST_ENTERED;
a0d0e21e
LW		 508 gv_fetchpv(s, TRUE,
509 kind == '$' ? SVt_PV :
510 kind == '@' ? SVt_PVAV :
511 kind == '%' ? SVt_PVHV :
512 SVt_PVGV
513 );
748a9306 514 }
79072805
LW		 515 }
516}
517
8990e307 518static SV *
79072805
LW		 519q(sv)
520SV *sv;
521{
522 register char *s;
523 register char *send;
524 register char *d;
463ee0b2 525 STRLEN len;
79072805
LW		 526
527 if (!SvLEN(sv))
528 return sv;
529
a0d0e21e 530 s = SvPV_force(sv, len);
748a9306
LW		 531 if (SvIVX(sv) == -1)
532 return sv;
463ee0b2 533 send = s + len;
79072805
LW		 534 while (s < send && *s != '\\')
535 s++;
536 if (s == send)
537 return sv;
538 d = s;
79072805
LW		 539 while (s < send) {
540 if (*s == '\\') {
a0d0e21e 541 if (s + 1 < send && (s[1] == '\\'))
79072805
LW		 542 s++; /* all that, just for this */
543 }
544 *d++ = *s++;
545 }
546 *d = '\0';
463ee0b2 547 SvCUR_set(sv, d - SvPVX(sv));
79072805
LW		 548
549 return sv;
550}
551
8990e307 552static I32
79072805
LW		 553sublex_start()
554{
555 register I32 op_type = yylval.ival;
79072805
LW		 556
557 if (op_type == OP_NULL) {
558 yylval.opval = lex_op;
559 lex_op = Nullop;
560 return THING;
561 }
562 if (op_type == OP_CONST || op_type == OP_READLINE) {
563 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
564 lex_stuff = Nullsv;
565 return THING;
566 }
567
568 push_scope();
569 SAVEINT(lex_dojoin);
570 SAVEINT(lex_brackets);
571 SAVEINT(lex_fakebrack);
572 SAVEINT(lex_casemods);
573 SAVEINT(lex_starts);
574 SAVEINT(lex_state);
a0d0e21e 575 SAVESPTR(lex_inpat);
79072805
LW		 576 SAVEINT(lex_inwhat);
577 SAVEINT(curcop->cop_line);
85e6fe83
LW		 578 SAVEPPTR(bufptr);
579 SAVEPPTR(oldbufptr);
580 SAVEPPTR(oldoldbufptr);
79072805 581 SAVESPTR(linestr);
85e6fe83 582 SAVEPPTR(lex_brackstack);
a0d0e21e 583 SAVEPPTR(lex_casestack);
79072805
LW		 584
585 linestr = lex_stuff;
586 lex_stuff = Nullsv;
587
463ee0b2 588 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
79072805 589 bufend += SvCUR(linestr);
8990e307 590 SAVEFREESV(linestr);
79072805
LW		 591
592 lex_dojoin = FALSE;
593 lex_brackets = 0;
594 lex_fakebrack = 0;
8990e307 595 New(899, lex_brackstack, 120, char);
a0d0e21e 596 New(899, lex_casestack, 12, char);
8990e307 597 SAVEFREEPV(lex_brackstack);
a0d0e21e 598 SAVEFREEPV(lex_casestack);
79072805 599 lex_casemods = 0;
a0d0e21e 600 *lex_casestack = '\0';
79072805
LW		 601 lex_starts = 0;
602 lex_state = LEX_INTERPCONCAT;
603 curcop->cop_line = multi_start;
604
605 lex_inwhat = op_type;
606 if (op_type == OP_MATCH || op_type == OP_SUBST)
a0d0e21e 607 lex_inpat = lex_op;
79072805
LW		 608 else
609 lex_inpat = 0;
610
463ee0b2 611 expect = XTERM;
79072805
LW		 612 force_next('(');
613 if (lex_op) {
614 yylval.opval = lex_op;
615 lex_op = Nullop;
616 return PMFUNC;
617 }
618 else
619 return FUNC;
620}
621
8990e307 622static I32
79072805
LW		 623sublex_done()
624{
625 if (!lex_starts++) {
626 expect = XOPERATOR;
93a17b20 627 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
79072805
LW		 628 return THING;
629 }
630
631 if (lex_casemods) { /* oops, we've got some unbalanced parens */
632 lex_state = LEX_INTERPCASEMOD;
633 return yylex();
634 }
635
79072805
LW		 636 /* Is there a right-hand side to take care of? */
637 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
638 linestr = lex_repl;
639 lex_inpat = 0;
463ee0b2 640 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
79072805 641 bufend += SvCUR(linestr);
8990e307 642 SAVEFREESV(linestr);
79072805
LW		 643 lex_dojoin = FALSE;
644 lex_brackets = 0;
645 lex_fakebrack = 0;
646 lex_casemods = 0;
a0d0e21e 647 *lex_casestack = '\0';
79072805
LW		 648 lex_starts = 0;
649 if (SvCOMPILED(lex_repl)) {
650 lex_state = LEX_INTERPNORMAL;
651 lex_starts++;
652 }
653 else
654 lex_state = LEX_INTERPCONCAT;
655 lex_repl = Nullsv;
656 return ',';
ffed7fef
LW		 657 }
658 else {
79072805 659 pop_scope();
463ee0b2 660 bufend = SvPVX(linestr);
79072805
LW		 661 bufend += SvCUR(linestr);
662 expect = XOPERATOR;
663 return ')';
ffed7fef
LW		 664 }
665}
666
8990e307 667static char *
79072805
LW		 668scan_const(start)
669char *start;
670{
671 register char *send = bufend;
672 SV *sv = NEWSV(93, send - start);
673 register char *s = start;
463ee0b2 674 register char *d = SvPVX(sv);
79072805
LW		 675 bool dorange = FALSE;
676 I32 len;
677 char *leave =
678 lex_inpat
748a9306 679 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
79072805
LW		 680 : (lex_inwhat & OP_TRANS)
681 ? ""
682 : "";
683
684 while (s < send || dorange) {
685 if (lex_inwhat == OP_TRANS) {
686 if (dorange) {
687 I32 i;
688 I32 max;
463ee0b2 689 i = d - SvPVX(sv);
79072805 690 SvGROW(sv, SvLEN(sv) + 256);
463ee0b2 691 d = SvPVX(sv) + i;
79072805 692 d -= 2;
91b7def8 693 max = (U8)d[1];
694 for (i = (U8)*d; i <= max; i++)
79072805
LW		 695 *d++ = i;
696 dorange = FALSE;
697 continue;
698 }
699 else if (*s == '-' && s+1 < send && s != start) {
700 dorange = TRUE;
701 s++;
702 }
703 }
748a9306
LW		 704 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
705 while (s < send && *s != ')')
706 *d++ = *s++;
707 }
708 else if (*s == '#' && lex_inpat &&
709 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
710 while (s+1 < send && *s != '\n')
711 *d++ = *s++;
712 }
a0d0e21e 713 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
79072805
LW		 714 break;
715 else if (*s == '$') {
716 if (!lex_inpat) /* not a regexp, so $ must be var */
717 break;
a0d0e21e 718 if (s + 1 < send && !strchr(")| \n\t", s[1]))
79072805
LW		 719 break; /* in regexp, $ might be tail anchor */
720 }
721 if (*s == '\\' && s+1 < send) {
722 s++;
93a17b20 723 if (*s && strchr(leave, *s)) {
79072805
LW		 724 *d++ = '\\';
725 *d++ = *s++;
726 continue;
727 }
728 if (lex_inwhat == OP_SUBST && !lex_inpat &&
a0d0e21e 729 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
79072805 730 {
a0d0e21e
LW		 731 if (dowarn)
732 warn("\\%c better written as $%c", *s, *s);
79072805
LW		 733 *--s = '$';
734 break;
735 }
a0d0e21e 736 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
79072805
LW		 737 --s;
738 break;
739 }
740 switch (*s) {
741 case '-':
742 if (lex_inwhat == OP_TRANS) {
743 *d++ = *s++;
744 continue;
745 }
746 /* FALL THROUGH */
747 default:
748 *d++ = *s++;
749 continue;
750 case '0': case '1': case '2': case '3':
751 case '4': case '5': case '6': case '7':
752 *d++ = scan_oct(s, 3, &len);
753 s += len;
754 continue;
755 case 'x':
756 *d++ = scan_hex(++s, 2, &len);
757 s += len;
758 continue;
759 case 'c':
760 s++;
761 *d = *s++;
762 if (isLOWER(*d))
a0d0e21e 763 *d = toUPPER(*d);
79072805
LW		 764 *d++ ^= 64;
765 continue;
766 case 'b':
767 *d++ = '\b';
768 break;
769 case 'n':
770 *d++ = '\n';
771 break;
772 case 'r':
773 *d++ = '\r';
774 break;
775 case 'f':
776 *d++ = '\f';
777 break;
778 case 't':
779 *d++ = '\t';
780 break;
781 case 'e':
782 *d++ = '\033';
783 break;
784 case 'a':
785 *d++ = '\007';
786 break;
787 }
788 s++;
789 continue;
790 }
791 *d++ = *s++;
792 }
793 *d = '\0';
463ee0b2 794 SvCUR_set(sv, d - SvPVX(sv));
79072805
LW		 795 SvPOK_on(sv);
796
797 if (SvCUR(sv) + 5 < SvLEN(sv)) {
798 SvLEN_set(sv, SvCUR(sv) + 1);
463ee0b2 799 Renew(SvPVX(sv), SvLEN(sv), char);
79072805
LW		 800 }
801 if (s > bufptr)
802 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
803 else
8990e307 804 SvREFCNT_dec(sv);
79072805
LW		 805 return s;
806}
807
808/* This is the one truly awful dwimmer necessary to conflate C and sed. */
8990e307 809static int
79072805
LW		 810intuit_more(s)
811register char *s;
812{
813 if (lex_brackets)
814 return TRUE;
815 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
816 return TRUE;
817 if (*s != '{' && *s != '[')
818 return FALSE;
819 if (!lex_inpat)
820 return TRUE;
821
822 /* In a pattern, so maybe we have {n,m}. */
823 if (*s == '{') {
824 s++;
825 if (!isDIGIT(*s))
826 return TRUE;
827 while (isDIGIT(*s))
828 s++;
829 if (*s == ',')
830 s++;
831 while (isDIGIT(*s))
832 s++;
833 if (*s == '}')
834 return FALSE;
835 return TRUE;
836
837 }
838
839 /* On the other hand, maybe we have a character class */
840
841 s++;
842 if (*s == ']' || *s == '^')
843 return FALSE;
844 else {
845 int weight = 2; /* let's weigh the evidence */
846 char seen[256];
847 unsigned char un_char = 0, last_un_char;
93a17b20 848 char *send = strchr(s,']');
79072805
LW		 849 char tmpbuf[512];
850
851 if (!send) /* has to be an expression */
852 return TRUE;
853
854 Zero(seen,256,char);
855 if (*s == '$')
856 weight -= 3;
857 else if (isDIGIT(*s)) {
858 if (s[1] != ']') {
859 if (isDIGIT(s[1]) && s[2] == ']')
860 weight -= 10;
861 }
862 else
863 weight -= 100;
864 }
865 for (; s < send; s++) {
866 last_un_char = un_char;
867 un_char = (unsigned char)*s;
868 switch (*s) {
869 case '@':
870 case '&':
871 case '$':
872 weight -= seen[un_char] * 10;
873 if (isALNUM(s[1])) {
874 scan_ident(s,send,tmpbuf,FALSE);
a0d0e21e 875 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
79072805
LW		 876 weight -= 100;
877 else
878 weight -= 10;
879 }
880 else if (*s == '$' && s[1] &&
93a17b20
LW		 881 strchr("[#!%*<>()-=",s[1])) {
882 if (/*{*/ strchr("])} =",s[2]))
79072805
LW		 883 weight -= 10;
884 else
885 weight -= 1;
886 }
887 break;
888 case '\\':
889 un_char = 254;
890 if (s[1]) {
93a17b20 891 if (strchr("wds]",s[1]))
79072805
LW		 892 weight += 100;
893 else if (seen['\''] || seen['"'])
894 weight += 1;
93a17b20 895 else if (strchr("rnftbxcav",s[1]))
79072805
LW		 896 weight += 40;
897 else if (isDIGIT(s[1])) {
898 weight += 40;
899 while (s[1] && isDIGIT(s[1]))
900 s++;
901 }
902 }
903 else
904 weight += 100;
905 break;
906 case '-':
907 if (s[1] == '\\')
908 weight += 50;
93a17b20 909 if (strchr("aA01! ",last_un_char))
79072805 910 weight += 30;
93a17b20 911 if (strchr("zZ79~",s[1]))
79072805
LW		 912 weight += 30;
913 break;
914 default:
93a17b20 915 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
79072805
LW		 916 isALPHA(*s) && s[1] && isALPHA(s[1])) {
917 char *d = tmpbuf;
918 while (isALPHA(*s))
919 *d++ = *s++;
920 *d = '\0';
921 if (keyword(tmpbuf, d - tmpbuf))
922 weight -= 150;
923 }
924 if (un_char == last_un_char + 1)
925 weight += 5;
926 weight -= seen[un_char];
927 break;
928 }
929 seen[un_char]++;
930 }
931 if (weight >= 0) /* probably a character class */
932 return FALSE;
933 }
934
935 return TRUE;
936}
ffed7fef 937
a0d0e21e
LW		 938static int
939intuit_method(start,gv)
940char *start;
941GV *gv;
942{
943 char *s = start + (*start == '$');
944 char tmpbuf[1024];
945 STRLEN len;
946 GV* indirgv;
947
948 if (gv) {
949 if (GvIO(gv))
950 return 0;
951 if (!GvCV(gv))
952 gv = 0;
953 }
954 s = scan_word(s, tmpbuf, TRUE, &len);
955 if (*start == '$') {
956 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
957 return 0;
958 s = skipspace(s);
959 bufptr = start;
960 expect = XREF;
961 return *s == '(' ? FUNCMETH : METHOD;
962 }
963 if (!keyword(tmpbuf, len)) {
964 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
965 if (indirgv && GvCV(indirgv))
966 return 0;
967 /* filehandle or package name makes it a method */
968 if (!gv || GvIO(indirgv) || gv_stashpv(tmpbuf, FALSE)) {
969 s = skipspace(s);
970 nextval[nexttoke].opval =
971 (OP*)newSVOP(OP_CONST, 0,
972 newSVpv(tmpbuf,0));
973 nextval[nexttoke].opval->op_private =
974 OPpCONST_BARE;
975 expect = XTERM;
976 force_next(WORD);
977 bufptr = s;
978 return *s == '(' ? FUNCMETH : METHOD;
979 }
980 }
981 return 0;
982}
983
984static char*
985incl_perldb()
986{
987 if (perldb) {
988 char *pdb = getenv("PERL5DB");
989
990 if (pdb)
991 return pdb;
992 return "BEGIN { require 'perl5db.pl' }";
993 }
994 return "";
995}
996
997
16d20bd9
AD		 998/* Encoded script support. filter_add() effectively inserts a
999 * 'pre-processing' function into the current source input stream.
1000 * Note that the filter function only applies to the current source file
1001 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1002 *
1003 * The datasv parameter (which may be NULL) can be used to pass
1004 * private data to this instance of the filter. The filter function
1005 * can recover the SV using the FILTER_DATA macro and use it to
1006 * store private buffers and state information.
1007 *
1008 * The supplied datasv parameter is upgraded to a PVIO type
1009 * and the IoDIRP field is used to store the function pointer.
1010 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1011 * private use must be set using malloc'd pointers.
1012 */
1013static int filter_debug = 0;
1014
1015SV *
1016filter_add(funcp, datasv)
1017 filter_t funcp;
1018 SV *datasv;
1019{
1020 if (!funcp){ /* temporary handy debugging hack to be deleted */
1021 filter_debug = atoi((char*)datasv);
1022 return NULL;
1023 }
1024 if (!rsfp_filters)
1025 rsfp_filters = newAV();
1026 if (!datasv)
1027 datasv = newSV(0);
1028 if (!SvUPGRADE(datasv, SVt_PVIO))
1029 die("Can't upgrade filter_add data to SVt_PVIO");
1030 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1031 if (filter_debug)
1032 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
e50aee73
AD		 1033 av_unshift(rsfp_filters, 1);
1034 av_store(rsfp_filters, 0, datasv) ;
16d20bd9
AD		 1035 return(datasv);
1036}
1037
1038
1039/* Delete most recently added instance of this filter function. */
a0d0e21e 1040void
16d20bd9
AD		 1041filter_del(funcp)
1042 filter_t funcp;
1043{
1044 if (filter_debug)
1045 warn("filter_del func %lx", funcp);
1046 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1047 return;
1048 /* if filter is on top of stack (usual case) just pop it off */
e50aee73
AD		 1049 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1050 /* sv_free(av_pop(rsfp_filters)); */
1051 sv_free(av_shift(rsfp_filters));
1052
16d20bd9
AD		 1053 return;
1054 }
1055 /* we need to search for the correct entry and clear it */
1056 die("filter_del can only delete in reverse order (currently)");
1057}
1058
1059
1060/* Invoke the n'th filter function for the current rsfp. */
1061I32
1062filter_read(idx, buf_sv, maxlen)
1063 int idx;
1064 SV *buf_sv;
1065 int maxlen; /* 0 = read one text line */
a0d0e21e 1066{
16d20bd9
AD		 1067 filter_t funcp;
1068 SV *datasv = NULL;
e50aee73 1069
16d20bd9
AD		 1070 if (!rsfp_filters)
1071 return -1;
1072 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1073 /* Provide a default input filter to make life easy. */
1074 /* Note that we append to the line. This is handy. */
16d20bd9
AD		 1075 if (filter_debug)
1076 warn("filter_read %d: from rsfp\n", idx);
1077 if (maxlen) {
1078 /* Want a block */
1079 int len ;
1080 int old_len = SvCUR(buf_sv) ;
1081
1082 /* ensure buf_sv is large enough */
1083 SvGROW(buf_sv, old_len + maxlen) ;
37120919
AD		 1084 if ((len = fread(SvPVX(buf_sv) + old_len, 1, maxlen, rsfp)) <= 0){
1085 if (ferror(rsfp))
1086 return -1; /* error */
1087 else
1088 return 0 ; /* end of file */
1089 }
16d20bd9
AD		 1090 SvCUR_set(buf_sv, old_len + len) ;
1091 } else {
1092 /* Want a line */
37120919
AD		 1093 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1094 if (ferror(rsfp))
1095 return -1; /* error */
1096 else
1097 return 0 ; /* end of file */
1098 }
16d20bd9
AD		 1099 }
1100 return SvCUR(buf_sv);
1101 }
1102 /* Skip this filter slot if filter has been deleted */
1103 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1104 if (filter_debug)
1105 warn("filter_read %d: skipped (filter deleted)\n", idx);
1106 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1107 }
1108 /* Get function pointer hidden within datasv */
1109 funcp = (filter_t)IoDIRP(datasv);
1110 if (filter_debug)
1111 warn("filter_read %d: via function %lx (%s)\n",
1112 idx, funcp, SvPV(datasv,na));
1113 /* Call function. The function is expected to */
1114 /* call "FILTER_READ(idx+1, buf_sv)" first. */
37120919 1115 /* Return: <0:error, =0:eof, >0:not eof */
16d20bd9
AD		 1116 return (*funcp)(idx, buf_sv, maxlen);
1117}
1118
1119static char *
1120filter_gets(sv,fp)
1121register SV *sv;
1122register FILE *fp;
1123{
1124 if (rsfp_filters) {
1125
1126 SvCUR_set(sv, 0); /* start with empty line */
1127 if (FILTER_READ(0, sv, 0) > 0)
1128 return ( SvPVX(sv) ) ;
1129 else
1130 return Nullch ;
1131 }
1132 else
1133 return (sv_gets(sv, fp, 0)) ;
1134
a0d0e21e
LW		 1135}
1136
1137
748a9306
LW		 1138#ifdef DEBUGGING
1139 static char* exp_name[] =
a0d0e21e 1140 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
748a9306 1141#endif
463ee0b2
LW		 1142
1143extern int yychar; /* last token */
1144
2f3197b3 1145int
378cc40b
LW		 1146yylex()
1147{
79072805 1148 register char *s;
378cc40b 1149 register char *d;
79072805 1150 register I32 tmp;
463ee0b2 1151 STRLEN len;
a687059c 1152
79072805
LW		 1153 switch (lex_state) {
1154#ifdef COMMENTARY
1155 case LEX_NORMAL: /* Some compilers will produce faster */
1156 case LEX_INTERPNORMAL: /* code if we comment these out. */
1157 break;
1158#endif
1159
1160 case LEX_KNOWNEXT:
1161 nexttoke--;
1162 yylval = nextval[nexttoke];
463ee0b2 1163 if (!nexttoke) {
79072805 1164 lex_state = lex_defer;
463ee0b2 1165 expect = lex_expect;
a0d0e21e 1166 lex_defer = LEX_NORMAL;
463ee0b2 1167 }
79072805
LW		 1168 return(nexttype[nexttoke]);
1169
1170 case LEX_INTERPCASEMOD:
1171#ifdef DEBUGGING
1172 if (bufptr != bufend && *bufptr != '\\')
463ee0b2 1173 croak("panic: INTERPCASEMOD");
79072805
LW		 1174#endif
1175 if (bufptr == bufend || bufptr[1] == 'E') {
a0d0e21e 1176 char oldmod;
79072805 1177 if (lex_casemods) {
a0d0e21e
LW		 1178 oldmod = lex_casestack[--lex_casemods];
1179 lex_casestack[lex_casemods] = '\0';
1180 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1181 bufptr += 2;
1182 lex_state = LEX_INTERPCONCAT;
1183 }
79072805
LW		 1184 return ')';
1185 }
a0d0e21e
LW		 1186 if (bufptr != bufend)
1187 bufptr += 2;
1188 lex_state = LEX_INTERPCONCAT;
79072805
LW		 1189 return yylex();
1190 }
1191 else {
1192 s = bufptr + 1;
1193 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1194 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
a0d0e21e
LW		 1195 if (strchr("LU", *s) &&
1196 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1197 {
1198 lex_casestack[--lex_casemods] = '\0';
1199 return ')';
1200 }
1201 if (lex_casemods > 10) {
1202 char* newlb = (char*)realloc(lex_casestack, lex_casemods + 2);
1203 if (newlb != lex_casestack) {
1204 SAVEFREEPV(newlb);
1205 lex_casestack = newlb;
1206 }
1207 }
1208 lex_casestack[lex_casemods++] = *s;
1209 lex_casestack[lex_casemods] = '\0';
79072805
LW		 1210 lex_state = LEX_INTERPCONCAT;
1211 nextval[nexttoke].ival = 0;
1212 force_next('(');
1213 if (*s == 'l')
1214 nextval[nexttoke].ival = OP_LCFIRST;
1215 else if (*s == 'u')
1216 nextval[nexttoke].ival = OP_UCFIRST;
1217 else if (*s == 'L')
1218 nextval[nexttoke].ival = OP_LC;
1219 else if (*s == 'U')
1220 nextval[nexttoke].ival = OP_UC;
a0d0e21e
LW		 1221 else if (*s == 'Q')
1222 nextval[nexttoke].ival = OP_QUOTEMETA;
79072805 1223 else
463ee0b2 1224 croak("panic: yylex");
79072805
LW		 1225 bufptr = s + 1;
1226 force_next(FUNC);
1227 if (lex_starts) {
1228 s = bufptr;
463ee0b2 1229 lex_starts = 0;
79072805
LW		 1230 Aop(OP_CONCAT);
1231 }
1232 else
1233 return yylex();
1234 }
1235
1236 case LEX_INTERPSTART:
1237 if (bufptr == bufend)
1238 return sublex_done();
1239 expect = XTERM;
1240 lex_dojoin = (*bufptr == '@');
1241 lex_state = LEX_INTERPNORMAL;
1242 if (lex_dojoin) {
1243 nextval[nexttoke].ival = 0;
1244 force_next(',');
a0d0e21e 1245 force_ident("\"", '$');
79072805
LW		 1246 nextval[nexttoke].ival = 0;
1247 force_next('$');
1248 nextval[nexttoke].ival = 0;
1249 force_next('(');
1250 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1251 force_next(FUNC);
1252 }
1253 if (lex_starts++) {
1254 s = bufptr;
1255 Aop(OP_CONCAT);
1256 }
1257 else
1258 return yylex();
1259 break;
1260
1261 case LEX_INTERPENDMAYBE:
1262 if (intuit_more(bufptr)) {
1263 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1264 break;
1265 }
1266 /* FALL THROUGH */
1267
1268 case LEX_INTERPEND:
1269 if (lex_dojoin) {
1270 lex_dojoin = FALSE;
1271 lex_state = LEX_INTERPCONCAT;
1272 return ')';
1273 }
1274 /* FALLTHROUGH */
1275 case LEX_INTERPCONCAT:
1276#ifdef DEBUGGING
1277 if (lex_brackets)
463ee0b2 1278 croak("panic: INTERPCONCAT");
79072805
LW		 1279#endif
1280 if (bufptr == bufend)
1281 return sublex_done();
1282
ed6116ce 1283 if (SvIVX(linestr) == '\'') {
79072805
LW		 1284 SV *sv = newSVsv(linestr);
1285 if (!lex_inpat)
1286 sv = q(sv);
1287 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1288 s = bufend;
1289 }
1290 else {
1291 s = scan_const(bufptr);
1292 if (*s == '\\')
1293 lex_state = LEX_INTERPCASEMOD;
1294 else
1295 lex_state = LEX_INTERPSTART;
1296 }
1297
1298 if (s != bufptr) {
1299 nextval[nexttoke] = yylval;
463ee0b2 1300 expect = XTERM;
79072805
LW		 1301 force_next(THING);
1302 if (lex_starts++)
1303 Aop(OP_CONCAT);
1304 else {
1305 bufptr = s;
1306 return yylex();
1307 }
1308 }
1309
1310 return yylex();
a0d0e21e
LW		 1311 case LEX_FORMLINE:
1312 lex_state = LEX_NORMAL;
1313 s = scan_formline(bufptr);
1314 if (!lex_formbrack)
1315 goto rightbracket;
1316 OPERATOR(';');
79072805
LW		 1317 }
1318
1319 s = bufptr;
a687059c
LW		 1320 oldoldbufptr = oldbufptr;
1321 oldbufptr = s;
79072805 1322 DEBUG_p( {
463ee0b2 1323 fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
79072805 1324 } )
463ee0b2
LW		 1325
1326 retry:
378cc40b
LW		 1327 switch (*s) {
1328 default:
a0d0e21e 1329 warn("Unrecognized character \\%03o ignored", *s++ & 255);
378cc40b 1330 goto retry;
e929a76b
LW		 1331 case 4:
1332 case 26:
1333 goto fake_eof; /* emulate EOF on ^D or ^Z */
378cc40b 1334 case 0:
463ee0b2
LW		 1335 if (!rsfp) {
1336 if (lex_brackets)
1337 yyerror("Missing right bracket");
79072805 1338 TOKEN(0);
463ee0b2 1339 }
a687059c
LW		 1340 if (s++ < bufend)
1341 goto retry; /* ignore stray nulls */
2f3197b3 1342 last_uni = 0;
79072805 1343 last_lop = 0;
a0d0e21e 1344 if (!in_eval && !preambled) {
79072805 1345 preambled = TRUE;
a0d0e21e 1346 sv_setpv(linestr,incl_perldb());
91b7def8 1347 if (SvCUR(linestr))
1348 sv_catpv(linestr,";");
1349 if (preambleav){
1350 while(AvFILL(preambleav) >= 0) {
1351 SV *tmpsv = av_shift(preambleav);
1352 sv_catsv(linestr, tmpsv);
1353 sv_catpv(linestr, ";");
1354 sv_free(tmpsv);
1355 }
1356 sv_free((SV*)preambleav);
1357 preambleav = NULL;
1358 }
79072805
LW		 1359 if (minus_n || minus_p) {
1360 sv_catpv(linestr, "LINE: while (<>) {");
1361 if (minus_l)
a0d0e21e 1362 sv_catpv(linestr,"chomp;");
2304df62
AD		 1363 if (minus_a){
1364 if (minus_F){
1365 char tmpbuf1[50];
1366 if ( splitstr[0] == '/' ||
1367 splitstr[0] == '\'' ||
1368 splitstr[0] == '"' )
1369 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1370 else
1371 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1372 sv_catpv(linestr,tmpbuf1);
1373 }
1374 else
1375 sv_catpv(linestr,"@F=split(' ');");
1376 }
79072805 1377 }
a0d0e21e 1378 sv_catpv(linestr, "\n");
463ee0b2
LW		 1379 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1380 bufend = SvPVX(linestr) + SvCUR(linestr);
a0d0e21e
LW		 1381 if (perldb && curstash != debstash) {
1382 SV *sv = NEWSV(85,0);
1383
1384 sv_upgrade(sv, SVt_PVMG);
1385 sv_setsv(sv,linestr);
1386 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1387 }
79072805 1388 goto retry;
a687059c 1389 }
e929a76b 1390 do {
16d20bd9 1391 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
e929a76b 1392 fake_eof:
395c3793 1393 if (rsfp) {
a0d0e21e 1394 if (preprocess && !in_eval)
79072805 1395 (void)my_pclose(rsfp);
de3bb511 1396 else if ((FILE*)rsfp == stdin)
395c3793
LW		 1397 clearerr(stdin);
1398 else
1399 (void)fclose(rsfp);
1400 rsfp = Nullfp;
1401 }
a0d0e21e 1402 if (!in_eval && (minus_n || minus_p)) {
79072805
LW		 1403 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1404 sv_catpv(linestr,";}");
463ee0b2
LW		 1405 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1406 bufend = SvPVX(linestr) + SvCUR(linestr);
e929a76b
LW		 1407 minus_n = minus_p = 0;
1408 goto retry;
1409 }
463ee0b2 1410 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
79072805
LW		 1411 sv_setpv(linestr,"");
1412 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
378cc40b 1413 }
a0d0e21e
LW		 1414 if (doextract) {
1415 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1416 doextract = FALSE;
1417
1418 /* Incest with pod. */
1419 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1420 sv_setpv(linestr, "");
1421 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1422 bufend = SvPVX(linestr) + SvCUR(linestr);
1423 doextract = FALSE;
1424 }
1425 }
463ee0b2 1426 incline(s);
e929a76b 1427 } while (doextract);
a687059c 1428 oldoldbufptr = oldbufptr = bufptr = s;
8990e307 1429 if (perldb && curstash != debstash) {
79072805 1430 SV *sv = NEWSV(85,0);
a687059c 1431
93a17b20 1432 sv_upgrade(sv, SVt_PVMG);
79072805
LW		 1433 sv_setsv(sv,linestr);
1434 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
a687059c 1435 }
463ee0b2 1436 bufend = SvPVX(linestr) + SvCUR(linestr);
79072805
LW		 1437 if (curcop->cop_line == 1) {
1438 while (s < bufend && isSPACE(*s))
1439 s++;
a0d0e21e 1440 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
79072805 1441 s++;
a0d0e21e 1442 if (!in_eval && *s == '#' && s[1] == '!') {
748a9306
LW		 1443 d = instr(s,"perl -");
1444 if (!d)
1445 d = instr(s,"perl");
1446 if (!d &&
1447 !minus_c &&
1448 !instr(s,"indir") &&
1449 instr(origargv[0],"perl"))
1450 {
9f68db38
LW		 1451 char **newargv;
1452 char *cmd;
1453
1454 s += 2;
1455 if (*s == ' ')
1456 s++;
1457 cmd = s;
de3bb511 1458 while (s < bufend && !isSPACE(*s))
9f68db38
LW		 1459 s++;
1460 *s++ = '\0';
de3bb511 1461 while (s < bufend && isSPACE(*s))
9f68db38
LW		 1462 s++;
1463 if (s < bufend) {
1464 Newz(899,newargv,origargc+3,char*);
1465 newargv[1] = s;
de3bb511 1466 while (s < bufend && !isSPACE(*s))
9f68db38
LW		 1467 s++;
1468 *s = '\0';
1469 Copy(origargv+1, newargv+2, origargc+1, char*);
1470 }
1471 else
1472 newargv = origargv;
1473 newargv[0] = cmd;
1474 execv(cmd,newargv);
463ee0b2 1475 croak("Can't exec %s", cmd);
9f68db38 1476 }
748a9306 1477 if (d) {
a0d0e21e
LW		 1478 int oldpdb = perldb;
1479 int oldn = minus_n;
1480 int oldp = minus_p;
748a9306
LW		 1481
1482 while (*d && !isSPACE(*d)) d++;
1483 while (*d == ' ') d++;
1484
1485 if (*d++ == '-') {
1486 while (d = moreswitches(d)) ;
1487 if (perldb && !oldpdb ||
b084f20b 1488 ( minus_n || minus_p ) && !(oldn || oldp) )
1489 /* if we have already added "LINE: while (<>) {",
1490 we must not do it again */
748a9306
LW		 1491 {
1492 sv_setpv(linestr, "");
1493 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1494 bufend = SvPVX(linestr) + SvCUR(linestr);
1495 preambled = FALSE;
1496 if (perldb)
1497 (void)gv_fetchfile(origfilename);
1498 goto retry;
1499 }
a0d0e21e 1500 }
79072805 1501 }
9f68db38 1502 }
79072805 1503 }
85e6fe83 1504 if (lex_formbrack && lex_brackets <= lex_formbrack) {
a0d0e21e
LW		 1505 bufptr = s;
1506 lex_state = LEX_FORMLINE;
1507 return yylex();
ae986130 1508 }
378cc40b 1509 goto retry;
fe14fcc3 1510 case ' ': case '\t': case '\f': case '\r': case 013:
378cc40b
LW		 1511 s++;
1512 goto retry;
378cc40b 1513 case '#':
e929a76b 1514 case '\n':
79072805 1515 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
a687059c
LW		 1516 d = bufend;
1517 while (s < d && *s != '\n')
378cc40b 1518 s++;
0f85fab0 1519 if (s < d)
378cc40b 1520 s++;
463ee0b2 1521 incline(s);
85e6fe83 1522 if (lex_formbrack && lex_brackets <= lex_formbrack) {
a0d0e21e
LW		 1523 bufptr = s;
1524 lex_state = LEX_FORMLINE;
1525 return yylex();
a687059c 1526 }
378cc40b 1527 }
a687059c 1528 else {
378cc40b 1529 *s = '\0';
a687059c
LW		 1530 bufend = s;
1531 }
378cc40b
LW		 1532 goto retry;
1533 case '-':
79072805 1534 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
378cc40b 1535 s++;
748a9306
LW		 1536 bufptr = s;
1537 tmp = *s++;
1538
1539 while (s < bufend && (*s == ' ' || *s == '\t'))
1540 s++;
1541
1542 if (strnEQ(s,"=>",2)) {
1543 if (dowarn)
1544 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1545 tmp, tmp);
1546 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1547 OPERATOR('-'); /* unary minus */
1548 }
e334a159 1549 last_uni = oldbufptr;
a0d0e21e 1550 last_lop_op = OP_FTEREAD; /* good enough */
748a9306 1551 switch (tmp) {
79072805
LW		 1552 case 'r': FTST(OP_FTEREAD);
1553 case 'w': FTST(OP_FTEWRITE);
1554 case 'x': FTST(OP_FTEEXEC);
1555 case 'o': FTST(OP_FTEOWNED);
1556 case 'R': FTST(OP_FTRREAD);
1557 case 'W': FTST(OP_FTRWRITE);
1558 case 'X': FTST(OP_FTREXEC);
1559 case 'O': FTST(OP_FTROWNED);
1560 case 'e': FTST(OP_FTIS);
1561 case 'z': FTST(OP_FTZERO);
1562 case 's': FTST(OP_FTSIZE);
1563 case 'f': FTST(OP_FTFILE);
1564 case 'd': FTST(OP_FTDIR);
1565 case 'l': FTST(OP_FTLINK);
1566 case 'p': FTST(OP_FTPIPE);
1567 case 'S': FTST(OP_FTSOCK);
1568 case 'u': FTST(OP_FTSUID);
1569 case 'g': FTST(OP_FTSGID);
1570 case 'k': FTST(OP_FTSVTX);
1571 case 'b': FTST(OP_FTBLK);
1572 case 'c': FTST(OP_FTCHR);
1573 case 't': FTST(OP_FTTTY);
1574 case 'T': FTST(OP_FTTEXT);
1575 case 'B': FTST(OP_FTBINARY);
85e6fe83
LW		 1576 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1577 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1578 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
378cc40b 1579 default:
748a9306 1580 croak("Unrecognized file test: -%c", tmp);
378cc40b
LW		 1581 break;
1582 }
1583 }
a687059c
LW		 1584 tmp = *s++;
1585 if (*s == tmp) {
1586 s++;
79072805
LW		 1587 if (expect == XOPERATOR)
1588 TERM(POSTDEC);
1589 else
1590 OPERATOR(PREDEC);
1591 }
1592 else if (*s == '>') {
1593 s++;
1594 s = skipspace(s);
1595 if (isIDFIRST(*s)) {
a0d0e21e 1596 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
463ee0b2 1597 TOKEN(ARROW);
79072805 1598 }
748a9306
LW		 1599 else if (*s == '$')
1600 OPERATOR(ARROW);
463ee0b2 1601 else
748a9306 1602 TERM(ARROW);
a687059c 1603 }
79072805
LW		 1604 if (expect == XOPERATOR)
1605 Aop(OP_SUBTRACT);
1606 else {
2f3197b3
LW		 1607 if (isSPACE(*s) || !isSPACE(*bufptr))
1608 check_uni();
79072805 1609 OPERATOR('-'); /* unary minus */
2f3197b3 1610 }
79072805 1611
378cc40b 1612 case '+':
a687059c
LW		 1613 tmp = *s++;
1614 if (*s == tmp) {
378cc40b 1615 s++;
79072805
LW		 1616 if (expect == XOPERATOR)
1617 TERM(POSTINC);
1618 else
1619 OPERATOR(PREINC);
378cc40b 1620 }
79072805
LW		 1621 if (expect == XOPERATOR)
1622 Aop(OP_ADD);
1623 else {
2f3197b3
LW		 1624 if (isSPACE(*s) || !isSPACE(*bufptr))
1625 check_uni();
a687059c 1626 OPERATOR('+');
2f3197b3 1627 }
a687059c 1628
378cc40b 1629 case '*':
79072805
LW		 1630 if (expect != XOPERATOR) {
1631 s = scan_ident(s, bufend, tokenbuf, TRUE);
463ee0b2 1632 expect = XOPERATOR;
a0d0e21e
LW		 1633 force_ident(tokenbuf, '*');
1634 if (!*tokenbuf)
1635 PREREF('*');
79072805 1636 TERM('*');
a687059c 1637 }
79072805
LW		 1638 s++;
1639 if (*s == '*') {
a687059c 1640 s++;
79072805 1641 PWop(OP_POW);
a687059c 1642 }
79072805
LW		 1643 Mop(OP_MULTIPLY);
1644
378cc40b 1645 case '%':
79072805 1646 if (expect != XOPERATOR) {
93a17b20
LW		 1647 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1648 if (tokenbuf[1]) {
463ee0b2 1649 expect = XOPERATOR;
93a17b20
LW		 1650 tokenbuf[0] = '%';
1651 if (in_my) {
463ee0b2 1652 if (strchr(tokenbuf,':'))
748a9306 1653 croak(no_myglob,tokenbuf);
ed6116ce 1654 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
93a17b20
LW		 1655 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1656 force_next(PRIVATEREF);
1657 TERM('%');
1658 }
463ee0b2 1659 if (!strchr(tokenbuf,':')) {
93a17b20 1660 if (tmp = pad_findmy(tokenbuf)) {
ed6116ce 1661 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
93a17b20
LW		 1662 nextval[nexttoke].opval->op_targ = tmp;
1663 force_next(PRIVATEREF);
1664 TERM('%');
1665 }
1666 }
a0d0e21e 1667 force_ident(tokenbuf + 1, *tokenbuf);
93a17b20
LW		 1668 }
1669 else
1670 PREREF('%');
79072805 1671 TERM('%');
a687059c 1672 }
79072805
LW		 1673 ++s;
1674 Mop(OP_MODULO);
a687059c 1675
378cc40b 1676 case '^':
79072805 1677 s++;
a0d0e21e 1678 BOop(OP_BIT_XOR);
79072805
LW		 1679 case '[':
1680 lex_brackets++;
1681 /* FALL THROUGH */
378cc40b 1682 case '~':
378cc40b 1683 case ',':
378cc40b
LW		 1684 tmp = *s++;
1685 OPERATOR(tmp);
a0d0e21e
LW		 1686 case ':':
1687 if (s[1] == ':') {
1688 len = 0;
1689 goto just_a_word;
1690 }
1691 s++;
1692 OPERATOR(':');
8990e307
LW		 1693 case '(':
1694 s++;
a0d0e21e 1695 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
8990e307 1696 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
a0d0e21e
LW		 1697 else
1698 expect = XTERM;
1699 TOKEN('(');
378cc40b 1700 case ';':
79072805
LW		 1701 if (curcop->cop_line < copline)
1702 copline = curcop->cop_line;
378cc40b
LW		 1703 tmp = *s++;
1704 OPERATOR(tmp);
1705 case ')':
378cc40b 1706 tmp = *s++;
16d20bd9
AD		 1707 s = skipspace(s);
1708 if (*s == '{')
1709 PREBLOCK(tmp);
378cc40b 1710 TERM(tmp);
79072805
LW		 1711 case ']':
1712 s++;
463ee0b2
LW		 1713 if (lex_brackets <= 0)
1714 yyerror("Unmatched right bracket");
1715 else
1716 --lex_brackets;
79072805 1717 if (lex_state == LEX_INTERPNORMAL) {
463ee0b2 1718 if (lex_brackets == 0) {
a0d0e21e 1719 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
79072805
LW		 1720 lex_state = LEX_INTERPEND;
1721 }
1722 }
4633a7c4 1723 TERM(']');
79072805
LW		 1724 case '{':
1725 leftbracket:
79072805 1726 s++;
8990e307
LW		 1727 if (lex_brackets > 100) {
1728 char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1);
1729 if (newlb != lex_brackstack) {
1730 SAVEFREEPV(newlb);
1731 lex_brackstack = newlb;
1732 }
1733 }
a0d0e21e
LW		 1734 switch (expect) {
1735 case XTERM:
1736 if (lex_formbrack) {
1737 s--;
1738 PRETERMBLOCK(DO);
1739 }
1740 if (oldoldbufptr == last_lop)
1741 lex_brackstack[lex_brackets++] = XTERM;
1742 else
1743 lex_brackstack[lex_brackets++] = XOPERATOR;
79072805 1744 OPERATOR(HASHBRACK);
a0d0e21e 1745 break;
a0d0e21e 1746 case XOPERATOR:
748a9306
LW		 1747 while (s < bufend && (*s == ' ' || *s == '\t'))
1748 s++;
1749 if (s < bufend && isALPHA(*s)) {
1750 d = scan_word(s, tokenbuf, FALSE, &len);
1751 while (d < bufend && (*d == ' ' || *d == '\t'))
1752 d++;
1753 if (*d == '}') {
1754 if (dowarn &&
1755 (keyword(tokenbuf, len) ||
1756 perl_get_cv(tokenbuf, FALSE) ))
1757 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1758 tokenbuf, tokenbuf);
1759 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1760 }
1761 }
1762 /* FALL THROUGH */
1763 case XBLOCK:
a0d0e21e 1764 lex_brackstack[lex_brackets++] = XSTATE;
2304df62 1765 expect = XSTATE;
a0d0e21e
LW		 1766 break;
1767 case XTERMBLOCK:
1768 lex_brackstack[lex_brackets++] = XOPERATOR;
1769 expect = XSTATE;
1770 break;
1771 default: {
1772 char *t;
1773 if (oldoldbufptr == last_lop)
1774 lex_brackstack[lex_brackets++] = XTERM;
1775 else
1776 lex_brackstack[lex_brackets++] = XOPERATOR;
1777 s = skipspace(s);
1778 if (*s == '}')
1779 OPERATOR(HASHBRACK);
1780 if (isALPHA(*s)) {
c07a80fd 1781 for (t = s; t < bufend && isALNUM(*t); t++) ;
a0d0e21e
LW		 1782 }
1783 else if (*s == '\'' || *s == '"') {
1784 t = strchr(s+1,*s);
1785 if (!t++)
1786 t = s;
1787 }
1788 else
1789 t = s;
1790 while (t < bufend && isSPACE(*t))
1791 t++;
1792 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1793 OPERATOR(HASHBRACK);
1794 if (expect == XREF)
1795 expect = XTERM;
1796 else {
1797 lex_brackstack[lex_brackets-1] = XSTATE;
1798 expect = XSTATE;
1799 }
8990e307 1800 }
a0d0e21e 1801 break;
463ee0b2 1802 }
79072805
LW		 1803 yylval.ival = curcop->cop_line;
1804 if (isSPACE(*s) || *s == '#')
1805 copline = NOLINE; /* invalidate current command line number */
79072805 1806 TOKEN('{');
378cc40b 1807 case '}':
79072805
LW		 1808 rightbracket:
1809 s++;
463ee0b2
LW		 1810 if (lex_brackets <= 0)
1811 yyerror("Unmatched right bracket");
1812 else
1813 expect = (expectation)lex_brackstack[--lex_brackets];
85e6fe83
LW		 1814 if (lex_brackets < lex_formbrack)
1815 lex_formbrack = 0;
79072805 1816 if (lex_state == LEX_INTERPNORMAL) {
463ee0b2 1817 if (lex_brackets == 0) {
79072805
LW		 1818 if (lex_fakebrack) {
1819 lex_state = LEX_INTERPEND;
1820 bufptr = s;
1821 return yylex(); /* ignore fake brackets */
1822 }
a0d0e21e 1823 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
79072805
LW		 1824 lex_state = LEX_INTERPEND;
1825 }
1826 }
748a9306
LW		 1827 if (lex_brackets < lex_fakebrack) {
1828 bufptr = s;
1829 lex_fakebrack = 0;
1830 return yylex(); /* ignore fake brackets */
1831 }
79072805
LW		 1832 force_next('}');
1833 TOKEN(';');
378cc40b
LW		 1834 case '&':
1835 s++;
1836 tmp = *s++;
1837 if (tmp == '&')
a0d0e21e 1838 AOPERATOR(ANDAND);
378cc40b 1839 s--;
463ee0b2 1840 if (expect == XOPERATOR) {
4633a7c4 1841 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
463ee0b2
LW		 1842 curcop->cop_line--;
1843 warn(warn_nosemi);
1844 curcop->cop_line++;
1845 }
79072805 1846 BAop(OP_BIT_AND);
463ee0b2 1847 }
79072805
LW		 1848
1849 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
463ee0b2
LW		 1850 if (*tokenbuf) {
1851 expect = XOPERATOR;
a0d0e21e 1852 force_ident(tokenbuf, '&');
463ee0b2 1853 }
79072805
LW		 1854 else
1855 PREREF('&');
c07a80fd 1856 yylval.ival = (OPpENTERSUB_AMPER<<8);
79072805
LW		 1857 TERM('&');
1858
378cc40b
LW		 1859 case '|':
1860 s++;
1861 tmp = *s++;
1862 if (tmp == '|')
a0d0e21e 1863 AOPERATOR(OROR);
378cc40b 1864 s--;
79072805 1865 BOop(OP_BIT_OR);
378cc40b
LW		 1866 case '=':
1867 s++;
1868 tmp = *s++;
1869 if (tmp == '=')
79072805
LW		 1870 Eop(OP_EQ);
1871 if (tmp == '>')
1872 OPERATOR(',');
378cc40b 1873 if (tmp == '~')
79072805 1874 PMop(OP_MATCH);
463ee0b2
LW		 1875 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1876 warn("Reversed %c= operator",tmp);
378cc40b 1877 s--;
748a9306
LW		 1878 if (expect == XSTATE && isALPHA(tmp) &&
1879 (s == SvPVX(linestr)+1 || s[-2] == '\n') )
1880 {
a5f75d66
AD		 1881 if (in_eval && !rsfp) {
1882 d = bufend;
1883 while (s < d) {
1884 if (*s++ == '\n') {
1885 incline(s);
1886 if (strnEQ(s,"=cut",4)) {
1887 s = strchr(s,'\n');
1888 if (s)
1889 s++;
1890 else
1891 s = d;
1892 incline(s);
1893 goto retry;
1894 }
1895 }
1896 }
1897 goto retry;
1898 }
a0d0e21e
LW		 1899 s = bufend;
1900 doextract = TRUE;
1901 goto retry;
1902 }
1903 if (lex_brackets < lex_formbrack) {
1904 char *t;
1905 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1906 if (*t == '\n' || *t == '#') {
1907 s--;
1908 expect = XBLOCK;
1909 goto leftbracket;
1910 }
79072805 1911 }
a0d0e21e
LW		 1912 yylval.ival = 0;
1913 OPERATOR(ASSIGNOP);
378cc40b
LW		 1914 case '!':
1915 s++;
1916 tmp = *s++;
1917 if (tmp == '=')
79072805 1918 Eop(OP_NE);
378cc40b 1919 if (tmp == '~')
79072805 1920 PMop(OP_NOT);
378cc40b
LW		 1921 s--;
1922 OPERATOR('!');
1923 case '<':
79072805 1924 if (expect != XOPERATOR) {
93a17b20 1925 if (s[1] != '<' && !strchr(s,'>'))
2f3197b3 1926 check_uni();
79072805
LW		 1927 if (s[1] == '<')
1928 s = scan_heredoc(s);
1929 else
1930 s = scan_inputsymbol(s);
1931 TERM(sublex_start());
378cc40b
LW		 1932 }
1933 s++;
1934 tmp = *s++;
1935 if (tmp == '<')
79072805 1936 SHop(OP_LEFT_SHIFT);
395c3793
LW		 1937 if (tmp == '=') {
1938 tmp = *s++;
1939 if (tmp == '>')
79072805 1940 Eop(OP_NCMP);
395c3793 1941 s--;
79072805 1942 Rop(OP_LE);
395c3793 1943 }
378cc40b 1944 s--;
79072805 1945 Rop(OP_LT);
378cc40b
LW		 1946 case '>':
1947 s++;
1948 tmp = *s++;
1949 if (tmp == '>')
79072805 1950 SHop(OP_RIGHT_SHIFT);
378cc40b 1951 if (tmp == '=')
79072805 1952 Rop(OP_GE);
378cc40b 1953 s--;
79072805 1954 Rop(OP_GT);
378cc40b
LW		 1955
1956 case '$':
748a9306 1957 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
a0d0e21e 1958 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
8990e307 1959 if (expect == XOPERATOR) {
a0d0e21e
LW		 1960 if (lex_formbrack && lex_brackets == lex_formbrack) {
1961 expect = XTERM;
1962 depcom();
1963 return ','; /* grandfather non-comma-format format */
1964 }
8990e307
LW		 1965 else
1966 no_op("Array length",s);
1967 }
a0d0e21e
LW		 1968 else if (!tokenbuf[1])
1969 PREREF(DOLSHARP);
1970 if (!strchr(tokenbuf+1,':')) {
1971 tokenbuf[0] = '@';
1972 if (tmp = pad_findmy(tokenbuf)) {
1973 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1974 nextval[nexttoke].opval->op_targ = tmp;
1975 expect = XOPERATOR;
1976 force_next(PRIVATEREF);
1977 TOKEN(DOLSHARP);
1978 }
1979 }
463ee0b2 1980 expect = XOPERATOR;
a0d0e21e 1981 force_ident(tokenbuf+1, *tokenbuf);
463ee0b2 1982 TOKEN(DOLSHARP);
79072805 1983 }
93a17b20 1984 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
8990e307 1985 if (expect == XOPERATOR) {
a0d0e21e
LW		 1986 if (lex_formbrack && lex_brackets == lex_formbrack) {
1987 expect = XTERM;
1988 depcom();
1989 return ','; /* grandfather non-comma-format format */
1990 }
8990e307
LW		 1991 else
1992 no_op("Scalar",s);
1993 }
93a17b20 1994 if (tokenbuf[1]) {
a0d0e21e
LW		 1995 expectation oldexpect = expect;
1996
1997 /* This kludge not intended to be bulletproof. */
1998 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
748a9306 1999 yylval.opval = newSVOP(OP_CONST, 0,
a0d0e21e 2000 newSViv((IV)compiling.cop_arybase));
748a9306 2001 yylval.opval->op_private = OPpCONST_ARYBASE;
a0d0e21e
LW		 2002 TERM(THING);
2003 }
93a17b20 2004 tokenbuf[0] = '$';
a0d0e21e 2005 if (dowarn) {
93a17b20 2006 char *t;
a0d0e21e
LW		 2007 if (*s == '[' && oldexpect != XREF) {
2008 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
2009 if (*t++ == ',') {
2010 bufptr = skipspace(bufptr);
2011 while (t < bufend && *t != ']') t++;
2012 warn("Multidimensional syntax %.*s not supported",
2013 t-bufptr+1, bufptr);
2014 }
2015 }
2016 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
2017 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
2018 char tmpbuf[1024];
a0d0e21e
LW		 2019 STRLEN len;
2020 for (t++; isSPACE(*t); t++) ;
748a9306
LW		 2021 if (isIDFIRST(*t)) {
2022 t = scan_word(t, tmpbuf, TRUE, &len);
2023 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2024 warn("You need to quote \"%s\"", tmpbuf);
2025 }
93a17b20
LW		 2026 }
2027 }
463ee0b2
LW		 2028 expect = XOPERATOR;
2029 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
2030 bool islop = (last_lop == oldoldbufptr);
2031 s = skipspace(s);
a0d0e21e 2032 if (!islop || last_lop_op == OP_GREPSTART)
463ee0b2 2033 expect = XOPERATOR;
8990e307
LW		 2034 else if (strchr("$@\"'`q", *s))
2035 expect = XTERM; /* e.g. print $fh "foo" */
463ee0b2
LW		 2036 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2037 expect = XTERM; /* e.g. print $fh &sub */
2038 else if (isDIGIT(*s))
2039 expect = XTERM; /* e.g. print $fh 3 */
2040 else if (*s == '.' && isDIGIT(s[1]))
2041 expect = XTERM; /* e.g. print $fh .3 */
2042 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2043 expect = XTERM; /* e.g. print $fh -1 */
2044 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2045 expect = XTERM; /* print $fh <<"EOF" */
2046 }
93a17b20 2047 if (in_my) {
463ee0b2 2048 if (strchr(tokenbuf,':'))
748a9306 2049 croak(no_myglob,tokenbuf);
ed6116ce 2050 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
93a17b20
LW		 2051 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2052 force_next(PRIVATEREF);
2053 }
463ee0b2 2054 else if (!strchr(tokenbuf,':')) {
748a9306 2055 if (oldexpect != XREF || oldoldbufptr == last_lop) {
4633a7c4
LW		 2056 if (intuit_more(s)) {
2057 if (*s == '[')
2058 tokenbuf[0] = '@';
2059 else if (*s == '{')
2060 tokenbuf[0] = '%';
2061 }
a0d0e21e 2062 }
93a17b20 2063 if (tmp = pad_findmy(tokenbuf)) {
c07a80fd 2064 if (!tokenbuf[2] && *tokenbuf =='$' &&
2065 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2066 {
2067 for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
2068 d < bufend && *d != '\n';
2069 d++)
2070 {
2071 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2072 croak("Can't use \"my %s\" in sort comparison",
2073 tokenbuf);
2074 }
2075 }
2076 }
ed6116ce 2077 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
93a17b20
LW		 2078 nextval[nexttoke].opval->op_targ = tmp;
2079 force_next(PRIVATEREF);
2080 }
4633a7c4 2081 else
a0d0e21e 2082 force_ident(tokenbuf+1, *tokenbuf);
93a17b20
LW		 2083 }
2084 else
a0d0e21e 2085 force_ident(tokenbuf+1, *tokenbuf);
93a17b20 2086 }
463ee0b2
LW		 2087 else {
2088 if (s == bufend)
2089 yyerror("Final $ should be \\$ or $name");
79072805 2090 PREREF('$');
2f3197b3 2091 }
79072805 2092 TOKEN('$');
378cc40b
LW		 2093
2094 case '@':
93a17b20 2095 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
8990e307
LW		 2096 if (expect == XOPERATOR)
2097 no_op("Array",s);
93a17b20 2098 if (tokenbuf[1]) {
a0d0e21e
LW		 2099 GV* gv;
2100
93a17b20 2101 tokenbuf[0] = '@';
463ee0b2 2102 expect = XOPERATOR;
93a17b20 2103 if (in_my) {
463ee0b2 2104 if (strchr(tokenbuf,':'))
748a9306 2105 croak(no_myglob,tokenbuf);
ed6116ce 2106 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
93a17b20
LW		 2107 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2108 force_next(PRIVATEREF);
2109 TERM('@');
2110 }
463ee0b2 2111 else if (!strchr(tokenbuf,':')) {
4633a7c4
LW		 2112 if (intuit_more(s)) {
2113 if (*s == '{')
2114 tokenbuf[0] = '%';
2115 }
93a17b20 2116 if (tmp = pad_findmy(tokenbuf)) {
ed6116ce 2117 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
93a17b20
LW		 2118 nextval[nexttoke].opval->op_targ = tmp;
2119 force_next(PRIVATEREF);
2120 TERM('@');
2121 }
2122 }
a0d0e21e
LW		 2123
2124 /* Force them to make up their mind on "@foo". */
4633a7c4 2125 if (lex_state != LEX_NORMAL && !lex_brackets &&
a0d0e21e
LW		 2126 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2127 (*tokenbuf == '@'
2128 ? !GvAV(gv)
2129 : !GvHV(gv) )))
2130 {
2131 char tmpbuf[1024];
2132 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2133 yyerror(tmpbuf);
2134 }
2135
2136 /* Warn about @ where they meant $. */
2137 if (dowarn) {
2138 if (*s == '[' || *s == '{') {
2139 char *t = s + 1;
2140 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2141 t++;
2142 if (*t == '}' || *t == ']') {
2143 t++;
2144 bufptr = skipspace(bufptr);
2145 warn("Scalar value %.*s better written as $%.*s",
2146 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2147 }
93a17b20
LW		 2148 }
2149 }
a0d0e21e 2150 force_ident(tokenbuf+1, *tokenbuf);
93a17b20 2151 }
463ee0b2
LW		 2152 else {
2153 if (s == bufend)
2154 yyerror("Final @ should be \\@ or @name");
79072805 2155 PREREF('@');
463ee0b2 2156 }
79072805 2157 TERM('@');
378cc40b
LW		 2158
2159 case '/': /* may either be division or pattern */
2160 case '?': /* may either be conditional or pattern */
79072805 2161 if (expect != XOPERATOR) {
2f3197b3 2162 check_uni();
79072805
LW		 2163 s = scan_pat(s);
2164 TERM(sublex_start());
378cc40b
LW		 2165 }
2166 tmp = *s++;
a687059c 2167 if (tmp == '/')
79072805 2168 Mop(OP_DIVIDE);
378cc40b
LW		 2169 OPERATOR(tmp);
2170
2171 case '.':
748a9306
LW		 2172 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2173 (s == SvPVX(linestr) || s[-1] == '\n') ) {
85e6fe83 2174 lex_formbrack = 0;
8990e307 2175 expect = XSTATE;
79072805
LW		 2176 goto rightbracket;
2177 }
2178 if (expect == XOPERATOR || !isDIGIT(s[1])) {
378cc40b 2179 tmp = *s++;
a687059c
LW		 2180 if (*s == tmp) {
2181 s++;
2f3197b3
LW		 2182 if (*s == tmp) {
2183 s++;
79072805 2184 yylval.ival = OPf_SPECIAL;
2f3197b3
LW		 2185 }
2186 else
79072805 2187 yylval.ival = 0;
378cc40b 2188 OPERATOR(DOTDOT);
a687059c 2189 }
79072805 2190 if (expect != XOPERATOR)
2f3197b3 2191 check_uni();
79072805 2192 Aop(OP_CONCAT);
378cc40b
LW		 2193 }
2194 /* FALL THROUGH */
2195 case '0': case '1': case '2': case '3': case '4':
2196 case '5': case '6': case '7': case '8': case '9':
79072805 2197 s = scan_num(s);
8990e307
LW		 2198 if (expect == XOPERATOR)
2199 no_op("Number",s);
79072805
LW		 2200 TERM(THING);
2201
2202 case '\'':
8990e307 2203 s = scan_str(s);
463ee0b2 2204 if (expect == XOPERATOR) {
a0d0e21e
LW		 2205 if (lex_formbrack && lex_brackets == lex_formbrack) {
2206 expect = XTERM;
2207 depcom();
2208 return ','; /* grandfather non-comma-format format */
2209 }
463ee0b2 2210 else
8990e307 2211 no_op("String",s);
463ee0b2 2212 }
79072805 2213 if (!s)
85e6fe83 2214 missingterm((char*)0);
79072805
LW		 2215 yylval.ival = OP_CONST;
2216 TERM(sublex_start());
2217
2218 case '"':
8990e307 2219 s = scan_str(s);
463ee0b2 2220 if (expect == XOPERATOR) {
a0d0e21e
LW		 2221 if (lex_formbrack && lex_brackets == lex_formbrack) {
2222 expect = XTERM;
2223 depcom();
2224 return ','; /* grandfather non-comma-format format */
2225 }
463ee0b2 2226 else
8990e307 2227 no_op("String",s);
463ee0b2 2228 }
79072805 2229 if (!s)
85e6fe83 2230 missingterm((char*)0);
4633a7c4
LW		 2231 yylval.ival = OP_CONST;
2232 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2233 if (*d == '$' || *d == '@' || *d == '\\') {
2234 yylval.ival = OP_STRINGIFY;
2235 break;
2236 }
2237 }
79072805
LW		 2238 TERM(sublex_start());
2239
2240 case '`':
2241 s = scan_str(s);
8990e307
LW		 2242 if (expect == XOPERATOR)
2243 no_op("Backticks",s);
79072805 2244 if (!s)
85e6fe83 2245 missingterm((char*)0);
79072805
LW		 2246 yylval.ival = OP_BACKTICK;
2247 set_csh();
2248 TERM(sublex_start());
2249
2250 case '\\':
2251 s++;
748a9306
LW		 2252 if (dowarn && lex_inwhat && isDIGIT(*s))
2253 warn("Can't use \\%c to mean $%c in expression", *s, *s);
8990e307
LW		 2254 if (expect == XOPERATOR)
2255 no_op("Backslash",s);
79072805
LW		 2256 OPERATOR(REFGEN);
2257
2258 case 'x':
2259 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2260 s++;
2261 Mop(OP_REPEAT);
2f3197b3 2262 }
79072805
LW		 2263 goto keylookup;
2264
378cc40b 2265 case '_':
79072805
LW		 2266 case 'a': case 'A':
2267 case 'b': case 'B':
2268 case 'c': case 'C':
2269 case 'd': case 'D':
2270 case 'e': case 'E':
2271 case 'f': case 'F':
2272 case 'g': case 'G':
2273 case 'h': case 'H':
2274 case 'i': case 'I':
2275 case 'j': case 'J':
2276 case 'k': case 'K':
2277 case 'l': case 'L':
2278 case 'm': case 'M':
2279 case 'n': case 'N':
2280 case 'o': case 'O':
2281 case 'p': case 'P':
2282 case 'q': case 'Q':
2283 case 'r': case 'R':
2284 case 's': case 'S':
2285 case 't': case 'T':
2286 case 'u': case 'U':
2287 case 'v': case 'V':
2288 case 'w': case 'W':
2289 case 'X':
2290 case 'y': case 'Y':
2291 case 'z': case 'Z':
2292
2293 keylookup:
748a9306 2294 bufptr = s;
463ee0b2
LW		 2295 s = scan_word(s, tokenbuf, FALSE, &len);
2296
4633a7c4
LW		 2297 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2298 goto just_a_word;
2299
a0d0e21e 2300 tmp = keyword(tokenbuf, len);
748a9306
LW		 2301
2302 /* Is this a word before a => operator? */
2303 d = s;
2304 while (d < bufend && (*d == ' ' || *d == '\t'))
2305 d++; /* no comments skipped here, or s### is misparsed */
2306 if (strnEQ(d,"=>",2)) {
2307 CLINE;
2308 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2309 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2310 tokenbuf, tokenbuf);
2311 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2312 yylval.opval->op_private = OPpCONST_BARE;
2313 TERM(WORD);
2314 }
2315
a0d0e21e
LW		 2316 if (tmp < 0) { /* second-class keyword? */
2317 GV* gv;
2318 if (expect != XOPERATOR &&
a5f75d66
AD		 2319 (*s != ':' || s[1] != ':') &&
2320 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2321 GvIMPORTED_CV(gv))
a0d0e21e
LW		 2322 {
2323 tmp = 0;
2324 }
2325 else
2326 tmp = -tmp;
2327 }
2328
2329 reserved_word:
2330 switch (tmp) {
79072805
LW		 2331
2332 default: /* not a keyword */
93a17b20
LW		 2333 just_a_word: {
2334 GV *gv;
748a9306 2335 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
8990e307
LW		 2336
2337 /* Get the rest if it looks like a package qualifier */
2338
a0d0e21e 2339 if (*s == '\'' || *s == ':' && s[1] == ':') {
463ee0b2 2340 s = scan_word(s, tokenbuf + len, TRUE, &len);
a0d0e21e
LW		 2341 if (!len)
2342 croak("Bad name after %s::", tokenbuf);
2343 }
8990e307
LW		 2344
2345 /* Do special processing at start of statement. */
2346
2347 if (expect == XSTATE) {
93a17b20 2348 while (isSPACE(*s)) s++;
8990e307 2349 if (*s == ':') { /* It's a label. */
a0d0e21e 2350 yylval.pval = savepv(tokenbuf);
93a17b20
LW		 2351 s++;
2352 CLINE;
2353 TOKEN(LABEL);
2354 }
2355 }
a0d0e21e 2356 else if (expect == XOPERATOR) {
463ee0b2
LW		 2357 if (bufptr == SvPVX(linestr)) {
2358 curcop->cop_line--;
2359 warn(warn_nosemi);
2360 curcop->cop_line++;
2361 }
2362 else
8990e307 2363 no_op("Bare word",s);
463ee0b2 2364 }
8990e307
LW		 2365
2366 /* Look for a subroutine with this name in current package. */
2367
85e6fe83 2368 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
8990e307 2369
a0d0e21e
LW		 2370 /* Presume this is going to be a bareword of some sort. */
2371
2372 CLINE;
2373 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2374 yylval.opval->op_private = OPpCONST_BARE;
2375
8990e307
LW		 2376 /* See if it's the indirect object for a list operator. */
2377
a0d0e21e
LW		 2378 if (oldoldbufptr &&
2379 oldoldbufptr < bufptr &&
2380 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2381 /* NO SKIPSPACE BEFORE HERE! */
2382 (expect == XREF ||
2383 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2384 {
748a9306
LW		 2385 bool immediate_paren = *s == '(';
2386
a0d0e21e
LW		 2387 /* (Now we can afford to cross potential line boundary.) */
2388 s = skipspace(s);
2389
2390 /* Two barewords in a row may indicate method call. */
2391
2392 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2393 return tmp;
2394
2395 /* If not a declared subroutine, it's an indirect object. */
2396 /* (But it's an indir obj regardless for sort.) */
2397
8e07c86e
AD		 2398 if ((last_lop_op == OP_SORT ||
2399 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2400 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
748a9306
LW		 2401 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2402 goto bareword;
93a17b20
LW		 2403 }
2404 }
8990e307
LW		 2405
2406 /* If followed by a paren, it's certainly a subroutine. */
2407
2408 expect = XOPERATOR;
2409 s = skipspace(s);
93a17b20 2410 if (*s == '(') {
79072805 2411 CLINE;
a0d0e21e 2412 nextval[nexttoke].opval = yylval.opval;
463ee0b2 2413 expect = XOPERATOR;
93a17b20 2414 force_next(WORD);
c07a80fd 2415 yylval.ival = 0;
463ee0b2 2416 TOKEN('&');
79072805 2417 }
93a17b20 2418
a0d0e21e 2419 /* If followed by var or block, call it a method (unless sub) */
8990e307
LW		 2420
2421 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
463ee0b2 2422 last_lop = oldbufptr;
8990e307 2423 last_lop_op = OP_METHOD;
93a17b20 2424 PREBLOCK(METHOD);
463ee0b2
LW		 2425 }
2426
8990e307
LW		 2427 /* If followed by a bareword, see if it looks like indir obj. */
2428
a0d0e21e
LW		 2429 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2430 return tmp;
93a17b20 2431
8990e307
LW		 2432 /* Not a method, so call it a subroutine (if defined) */
2433
2434 if (gv && GvCV(gv)) {
4633a7c4 2435 CV* cv = GvCV(gv);
8990e307 2436 if (*s == '(') {
a5f75d66 2437 nextval[nexttoke].opval = yylval.opval;
8990e307
LW		 2438 expect = XTERM;
2439 force_next(WORD);
c07a80fd 2440 yylval.ival = 0;
8990e307
LW		 2441 TOKEN('&');
2442 }
748a9306 2443 if (lastchar == '-')
c2960299 2444 warn("Ambiguous use of -%s resolved as -&%s()",
748a9306 2445 tokenbuf, tokenbuf);
8990e307 2446 last_lop = oldbufptr;
a0d0e21e 2447 last_lop_op = OP_ENTERSUB;
a5f75d66
AD		 2448 /* Resolve to GV now. */
2449 op_free(yylval.opval);
2450 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
4633a7c4
LW		 2451 /* Is there a prototype? */
2452 if (SvPOK(cv)) {
2453 STRLEN len;
2454 char *proto = SvPV((SV*)cv, len);
2455 if (!len)
2456 TERM(FUNC0SUB);
2457 if (strEQ(proto, "$"))
2458 OPERATOR(UNIOPSUB);
2459 if (*proto == '&' && *s == '{') {
2460 sv_setpv(subname,"__ANON__");
2461 PREBLOCK(LSTOPSUB);
2462 }
2463 }
a5f75d66 2464 nextval[nexttoke].opval = yylval.opval;
8990e307
LW		 2465 expect = XTERM;
2466 force_next(WORD);
2467 TOKEN(NOAMP);
2468 }
748a9306
LW		 2469
2470 if (hints & HINT_STRICT_SUBS &&
2471 lastchar != '-' &&
a0d0e21e
LW		 2472 strnNE(s,"->",2) &&
2473 last_lop_op != OP_ACCEPT &&
2474 last_lop_op != OP_PIPE_OP &&
2475 last_lop_op != OP_SOCKPAIR)
2476 {
2477 warn(
2478 "Bareword \"%s\" not allowed while \"strict subs\" in use",
85e6fe83
LW		 2479 tokenbuf);
2480 ++error_count;
2481 }
8990e307
LW		 2482
2483 /* Call it a bare word */
2484
748a9306
LW		 2485 bareword:
2486 if (dowarn) {
2487 if (lastchar != '-') {
2488 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2489 if (!*d)
2490 warn(warn_reserved, tokenbuf);
2491 }
2492 }
2493 if (lastchar && strchr("*%&", lastchar)) {
2494 warn("Operator or semicolon missing before %c%s",
2495 lastchar, tokenbuf);
c2960299 2496 warn("Ambiguous use of %c resolved as operator %c",
748a9306
LW		 2497 lastchar, lastchar);
2498 }
93a17b20 2499 TOKEN(WORD);
79072805 2500 }
79072805
LW		 2501
2502 case KEY___LINE__:
2503 case KEY___FILE__: {
2504 if (tokenbuf[2] == 'L')
2505 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2506 else
463ee0b2 2507 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
79072805
LW		 2508 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2509 TERM(THING);
2510 }
2511
e50aee73 2512 case KEY___DATA__:
79072805
LW		 2513 case KEY___END__: {
2514 GV *gv;
79072805
LW		 2515
2516 /*SUPPRESS 560*/
a5f75d66 2517 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
e50aee73
AD		 2518 char dname[256];
2519 char *pname = "main";
2520 if (tokenbuf[2] == 'D')
2521 pname = HvNAME(curstash ? curstash : defstash);
2522 sprintf(dname,"%s::DATA", pname);
2523 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
a5f75d66 2524 GvMULTI_on(gv);
79072805 2525 if (!GvIO(gv))
a0d0e21e
LW		 2526 GvIOp(gv) = newIO();
2527 IoIFP(GvIOp(gv)) = rsfp;
2528#if defined(HAS_FCNTL) && defined(F_SETFD)
2529 {
2530 int fd = fileno(rsfp);
2531 fcntl(fd,F_SETFD,fd >= 3);
2532 }
79072805
LW		 2533#endif
2534 if (preprocess)
a0d0e21e 2535 IoTYPE(GvIOp(gv)) = '|';
79072805 2536 else if ((FILE*)rsfp == stdin)
a0d0e21e 2537 IoTYPE(GvIOp(gv)) = '-';
79072805 2538 else
a0d0e21e 2539 IoTYPE(GvIOp(gv)) = '<';
79072805
LW		 2540 rsfp = Nullfp;
2541 }
2542 goto fake_eof;
e929a76b 2543 }
de3bb511 2544
8990e307 2545 case KEY_AUTOLOAD:
ed6116ce 2546 case KEY_DESTROY:
79072805
LW		 2547 case KEY_BEGIN:
2548 case KEY_END:
a0d0e21e 2549 if (expect == XSTATE) {
93a17b20
LW		 2550 s = bufptr;
2551 goto really_sub;
79072805
LW		 2552 }
2553 goto just_a_word;
2554
a0d0e21e
LW		 2555 case KEY_CORE:
2556 if (*s == ':' && s[1] == ':') {
2557 s += 2;
748a9306 2558 d = s;
a0d0e21e
LW		 2559 s = scan_word(s, tokenbuf, FALSE, &len);
2560 tmp = keyword(tokenbuf, len);
2561 if (tmp < 0)
2562 tmp = -tmp;
2563 goto reserved_word;
2564 }
2565 goto just_a_word;
2566
463ee0b2
LW		 2567 case KEY_abs:
2568 UNI(OP_ABS);
2569
79072805
LW		 2570 case KEY_alarm:
2571 UNI(OP_ALARM);
2572
2573 case KEY_accept:
a0d0e21e 2574 LOP(OP_ACCEPT,XTERM);
79072805 2575
463ee0b2
LW		 2576 case KEY_and:
2577 OPERATOR(ANDOP);
2578
79072805 2579 case KEY_atan2:
a0d0e21e 2580 LOP(OP_ATAN2,XTERM);
85e6fe83 2581
79072805 2582 case KEY_bind:
a0d0e21e 2583 LOP(OP_BIND,XTERM);
79072805
LW		 2584
2585 case KEY_binmode:
2586 UNI(OP_BINMODE);
2587
2588 case KEY_bless:
a0d0e21e 2589 LOP(OP_BLESS,XTERM);
79072805
LW		 2590
2591 case KEY_chop:
2592 UNI(OP_CHOP);
2593
2594 case KEY_continue:
2595 PREBLOCK(CONTINUE);
2596
2597 case KEY_chdir:
85e6fe83 2598 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
79072805
LW		 2599 UNI(OP_CHDIR);
2600
2601 case KEY_close:
2602 UNI(OP_CLOSE);
2603
2604 case KEY_closedir:
2605 UNI(OP_CLOSEDIR);
2606
2607 case KEY_cmp:
2608 Eop(OP_SCMP);
2609
2610 case KEY_caller:
2611 UNI(OP_CALLER);
2612
2613 case KEY_crypt:
2614#ifdef FCRYPT
de3bb511
LW		 2615 if (!cryptseen++)
2616 init_des();
a687059c 2617#endif
a0d0e21e 2618 LOP(OP_CRYPT,XTERM);
79072805
LW		 2619
2620 case KEY_chmod:
748a9306
LW		 2621 if (dowarn) {
2622 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2623 if (*d != '0' && isDIGIT(*d))
2624 yywarn("chmod: mode argument is missing initial 0");
2625 }
a0d0e21e 2626 LOP(OP_CHMOD,XTERM);
79072805
LW		 2627
2628 case KEY_chown:
a0d0e21e 2629 LOP(OP_CHOWN,XTERM);
79072805
LW		 2630
2631 case KEY_connect:
a0d0e21e 2632 LOP(OP_CONNECT,XTERM);
79072805 2633
463ee0b2
LW		 2634 case KEY_chr:
2635 UNI(OP_CHR);
2636
79072805
LW		 2637 case KEY_cos:
2638 UNI(OP_COS);
2639
2640 case KEY_chroot:
2641 UNI(OP_CHROOT);
2642
2643 case KEY_do:
2644 s = skipspace(s);
2645 if (*s == '{')
a0d0e21e 2646 PRETERMBLOCK(DO);
79072805 2647 if (*s != '\'')
a0d0e21e 2648 s = force_word(s,WORD,FALSE,TRUE,FALSE);
378cc40b 2649 OPERATOR(DO);
79072805
LW		 2650
2651 case KEY_die:
a0d0e21e
LW		 2652 hints |= HINT_BLOCK_SCOPE;
2653 LOP(OP_DIE,XTERM);
79072805
LW		 2654
2655 case KEY_defined:
2656 UNI(OP_DEFINED);
2657
2658 case KEY_delete:
a0d0e21e 2659 UNI(OP_DELETE);
79072805
LW		 2660
2661 case KEY_dbmopen:
a0d0e21e
LW		 2662 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2663 LOP(OP_DBMOPEN,XTERM);
79072805
LW		 2664
2665 case KEY_dbmclose:
2666 UNI(OP_DBMCLOSE);
2667
2668 case KEY_dump:
a0d0e21e 2669 s = force_word(s,WORD,TRUE,FALSE,FALSE);
79072805
LW		 2670 LOOPX(OP_DUMP);
2671
2672 case KEY_else:
2673 PREBLOCK(ELSE);
2674
2675 case KEY_elsif:
2676 yylval.ival = curcop->cop_line;
2677 OPERATOR(ELSIF);
2678
2679 case KEY_eq:
2680 Eop(OP_SEQ);
2681
a0d0e21e
LW		 2682 case KEY_exists:
2683 UNI(OP_EXISTS);
2684
79072805
LW		 2685 case KEY_exit:
2686 UNI(OP_EXIT);
2687
2688 case KEY_eval:
79072805 2689 s = skipspace(s);
a0d0e21e 2690 expect = (*s == '{') ? XTERMBLOCK : XTERM;
463ee0b2 2691 UNIBRACK(OP_ENTEREVAL);
79072805
LW		 2692
2693 case KEY_eof:
2694 UNI(OP_EOF);
2695
2696 case KEY_exp:
2697 UNI(OP_EXP);
2698
2699 case KEY_each:
2700 UNI(OP_EACH);
2701
2702 case KEY_exec:
2703 set_csh();
a0d0e21e 2704 LOP(OP_EXEC,XREF);
79072805
LW		 2705
2706 case KEY_endhostent:
2707 FUN0(OP_EHOSTENT);
2708
2709 case KEY_endnetent:
2710 FUN0(OP_ENETENT);
2711
2712 case KEY_endservent:
2713 FUN0(OP_ESERVENT);
2714
2715 case KEY_endprotoent:
2716 FUN0(OP_EPROTOENT);
2717
2718 case KEY_endpwent:
2719 FUN0(OP_EPWENT);
2720
2721 case KEY_endgrent:
2722 FUN0(OP_EGRENT);
2723
2724 case KEY_for:
2725 case KEY_foreach:
2726 yylval.ival = curcop->cop_line;
2727 while (s < bufend && isSPACE(*s))
2728 s++;
2729 if (isIDFIRST(*s))
463ee0b2 2730 croak("Missing $ on loop variable");
79072805
LW		 2731 OPERATOR(FOR);
2732
2733 case KEY_formline:
a0d0e21e 2734 LOP(OP_FORMLINE,XTERM);
79072805
LW		 2735
2736 case KEY_fork:
2737 FUN0(OP_FORK);
2738
2739 case KEY_fcntl:
a0d0e21e 2740 LOP(OP_FCNTL,XTERM);
79072805
LW		 2741
2742 case KEY_fileno:
2743 UNI(OP_FILENO);
2744
2745 case KEY_flock:
a0d0e21e 2746 LOP(OP_FLOCK,XTERM);
79072805
LW		 2747
2748 case KEY_gt:
2749 Rop(OP_SGT);
2750
2751 case KEY_ge:
2752 Rop(OP_SGE);
2753
2754 case KEY_grep:
a0d0e21e 2755 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
79072805
LW		 2756
2757 case KEY_goto:
a0d0e21e 2758 s = force_word(s,WORD,TRUE,FALSE,FALSE);
79072805
LW		 2759 LOOPX(OP_GOTO);
2760
2761 case KEY_gmtime:
2762 UNI(OP_GMTIME);
2763
2764 case KEY_getc:
2765 UNI(OP_GETC);
2766
2767 case KEY_getppid:
2768 FUN0(OP_GETPPID);
2769
2770 case KEY_getpgrp:
2771 UNI(OP_GETPGRP);
2772
2773 case KEY_getpriority:
a0d0e21e 2774 LOP(OP_GETPRIORITY,XTERM);
79072805
LW		 2775
2776 case KEY_getprotobyname:
2777 UNI(OP_GPBYNAME);
2778
2779 case KEY_getprotobynumber:
a0d0e21e 2780 LOP(OP_GPBYNUMBER,XTERM);
79072805
LW		 2781
2782 case KEY_getprotoent:
2783 FUN0(OP_GPROTOENT);
2784
2785 case KEY_getpwent:
2786 FUN0(OP_GPWENT);
2787
2788 case KEY_getpwnam:
2789 FUN1(OP_GPWNAM);
2790
2791 case KEY_getpwuid:
2792 FUN1(OP_GPWUID);
2793
2794 case KEY_getpeername:
2795 UNI(OP_GETPEERNAME);
2796
2797 case KEY_gethostbyname:
2798 UNI(OP_GHBYNAME);
2799
2800 case KEY_gethostbyaddr:
a0d0e21e 2801 LOP(OP_GHBYADDR,XTERM);
79072805
LW		 2802
2803 case KEY_gethostent:
2804 FUN0(OP_GHOSTENT);
2805
2806 case KEY_getnetbyname:
2807 UNI(OP_GNBYNAME);
2808
2809 case KEY_getnetbyaddr:
a0d0e21e 2810 LOP(OP_GNBYADDR,XTERM);
79072805
LW		 2811
2812 case KEY_getnetent:
2813 FUN0(OP_GNETENT);
2814
2815 case KEY_getservbyname:
a0d0e21e 2816 LOP(OP_GSBYNAME,XTERM);
79072805
LW		 2817
2818 case KEY_getservbyport:
a0d0e21e 2819 LOP(OP_GSBYPORT,XTERM);
79072805
LW		 2820
2821 case KEY_getservent:
2822 FUN0(OP_GSERVENT);
2823
2824 case KEY_getsockname:
2825 UNI(OP_GETSOCKNAME);
2826
2827 case KEY_getsockopt:
a0d0e21e 2828 LOP(OP_GSOCKOPT,XTERM);
79072805
LW		 2829
2830 case KEY_getgrent:
2831 FUN0(OP_GGRENT);
2832
2833 case KEY_getgrnam:
2834 FUN1(OP_GGRNAM);
2835
2836 case KEY_getgrgid:
2837 FUN1(OP_GGRGID);
2838
2839 case KEY_getlogin:
2840 FUN0(OP_GETLOGIN);
2841
93a17b20 2842 case KEY_glob:
a0d0e21e
LW		 2843 set_csh();
2844 LOP(OP_GLOB,XTERM);
93a17b20 2845
79072805
LW		 2846 case KEY_hex:
2847 UNI(OP_HEX);
2848
2849 case KEY_if:
2850 yylval.ival = curcop->cop_line;
2851 OPERATOR(IF);
2852
2853 case KEY_index:
a0d0e21e 2854 LOP(OP_INDEX,XTERM);
79072805
LW		 2855
2856 case KEY_int:
2857 UNI(OP_INT);
2858
2859 case KEY_ioctl:
a0d0e21e 2860 LOP(OP_IOCTL,XTERM);
79072805
LW		 2861
2862 case KEY_join:
a0d0e21e 2863 LOP(OP_JOIN,XTERM);
79072805
LW		 2864
2865 case KEY_keys:
2866 UNI(OP_KEYS);
2867
2868 case KEY_kill:
a0d0e21e 2869 LOP(OP_KILL,XTERM);
79072805
LW		 2870
2871 case KEY_last:
a0d0e21e 2872 s = force_word(s,WORD,TRUE,FALSE,FALSE);
79072805 2873 LOOPX(OP_LAST);
a0d0e21e 2874
79072805
LW		 2875 case KEY_lc:
2876 UNI(OP_LC);
2877
2878 case KEY_lcfirst:
2879 UNI(OP_LCFIRST);
2880
2881 case KEY_local:
93a17b20 2882 yylval.ival = 0;
79072805
LW		 2883 OPERATOR(LOCAL);
2884
2885 case KEY_length:
2886 UNI(OP_LENGTH);
2887
2888 case KEY_lt:
2889 Rop(OP_SLT);
2890
2891 case KEY_le:
2892 Rop(OP_SLE);
2893
2894 case KEY_localtime:
2895 UNI(OP_LOCALTIME);
2896
2897 case KEY_log:
2898 UNI(OP_LOG);
2899
2900 case KEY_link:
a0d0e21e 2901 LOP(OP_LINK,XTERM);
79072805
LW		 2902
2903 case KEY_listen:
a0d0e21e 2904 LOP(OP_LISTEN,XTERM);
79072805
LW		 2905
2906 case KEY_lstat:
2907 UNI(OP_LSTAT);
2908
2909 case KEY_m:
2910 s = scan_pat(s);
2911 TERM(sublex_start());
2912
a0d0e21e
LW		 2913 case KEY_map:
2914 LOP(OP_MAPSTART,XREF);
2915
79072805 2916 case KEY_mkdir:
a0d0e21e 2917 LOP(OP_MKDIR,XTERM);
79072805
LW		 2918
2919 case KEY_msgctl:
a0d0e21e 2920 LOP(OP_MSGCTL,XTERM);
79072805
LW		 2921
2922 case KEY_msgget:
a0d0e21e 2923 LOP(OP_MSGGET,XTERM);
79072805
LW		 2924
2925 case KEY_msgrcv:
a0d0e21e 2926 LOP(OP_MSGRCV,XTERM);
79072805
LW		 2927
2928 case KEY_msgsnd:
a0d0e21e 2929 LOP(OP_MSGSND,XTERM);
79072805 2930
93a17b20
LW		 2931 case KEY_my:
2932 in_my = TRUE;
2933 yylval.ival = 1;
2934 OPERATOR(LOCAL);
2935
79072805 2936 case KEY_next:
a0d0e21e 2937 s = force_word(s,WORD,TRUE,FALSE,FALSE);
79072805
LW		 2938 LOOPX(OP_NEXT);
2939
2940 case KEY_ne:
2941 Eop(OP_SNE);
2942
a0d0e21e
LW		 2943 case KEY_no:
2944 if (expect != XSTATE)
2945 yyerror("\"no\" not allowed in expression");
2946 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2947 yylval.ival = 0;
2948 OPERATOR(USE);
2949
2950 case KEY_not:
2951 OPERATOR(NOTOP);
2952
79072805 2953 case KEY_open:
93a17b20
LW		 2954 s = skipspace(s);
2955 if (isIDFIRST(*s)) {
2956 char *t;
2957 for (d = s; isALNUM(*d); d++) ;
2958 t = skipspace(d);
2959 if (strchr("|&*+-=!?:.", *t))
2960 warn("Precedence problem: open %.*s should be open(%.*s)",
2961 d-s,s, d-s,s);
2962 }
a0d0e21e 2963 LOP(OP_OPEN,XTERM);
79072805 2964
463ee0b2 2965 case KEY_or:
a0d0e21e 2966 yylval.ival = OP_OR;
463ee0b2
LW		 2967 OPERATOR(OROP);
2968
79072805
LW		 2969 case KEY_ord:
2970 UNI(OP_ORD);
2971
2972 case KEY_oct:
2973 UNI(OP_OCT);
2974
2975 case KEY_opendir:
a0d0e21e 2976 LOP(OP_OPEN_DIR,XTERM);
79072805
LW		 2977
2978 case KEY_print:
2979 checkcomma(s,tokenbuf,"filehandle");
a0d0e21e 2980 LOP(OP_PRINT,XREF);
79072805
LW		 2981
2982 case KEY_printf:
2983 checkcomma(s,tokenbuf,"filehandle");
a0d0e21e 2984 LOP(OP_PRTF,XREF);
79072805 2985
c07a80fd 2986 case KEY_prototype:
2987 UNI(OP_PROTOTYPE);
2988
79072805 2989 case KEY_push:
a0d0e21e 2990 LOP(OP_PUSH,XTERM);
79072805
LW		 2991
2992 case KEY_pop:
2993 UNI(OP_POP);
2994
a0d0e21e
LW		 2995 case KEY_pos:
2996 UNI(OP_POS);
2997
79072805 2998 case KEY_pack:
a0d0e21e 2999 LOP(OP_PACK,XTERM);
79072805
LW		 3000
3001 case KEY_package:
a0d0e21e 3002 s = force_word(s,WORD,FALSE,TRUE,FALSE);
79072805
LW		 3003 OPERATOR(PACKAGE);
3004
3005 case KEY_pipe:
a0d0e21e 3006 LOP(OP_PIPE_OP,XTERM);
79072805
LW		 3007
3008 case KEY_q:
3009 s = scan_str(s);
3010 if (!s)
85e6fe83 3011 missingterm((char*)0);
79072805
LW		 3012 yylval.ival = OP_CONST;
3013 TERM(sublex_start());
3014
a0d0e21e
LW		 3015 case KEY_quotemeta:
3016 UNI(OP_QUOTEMETA);
3017
8990e307
LW		 3018 case KEY_qw:
3019 s = scan_str(s);
3020 if (!s)
85e6fe83 3021 missingterm((char*)0);
8990e307
LW		 3022 force_next(')');
3023 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3024 lex_stuff = Nullsv;
3025 force_next(THING);
3026 force_next(',');
3027 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3028 force_next(THING);
3029 force_next('(');
a0d0e21e
LW		 3030 yylval.ival = OP_SPLIT;
3031 CLINE;
3032 expect = XTERM;
3033 bufptr = s;
3034 last_lop = oldbufptr;
3035 last_lop_op = OP_SPLIT;
3036 return FUNC;
8990e307 3037
79072805
LW		 3038 case KEY_qq:
3039 s = scan_str(s);
3040 if (!s)
85e6fe83 3041 missingterm((char*)0);
a0d0e21e 3042 yylval.ival = OP_STRINGIFY;
ed6116ce
LW		 3043 if (SvIVX(lex_stuff) == '\'')
3044 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
79072805
LW		 3045 TERM(sublex_start());
3046
3047 case KEY_qx:
3048 s = scan_str(s);
3049 if (!s)
85e6fe83 3050 missingterm((char*)0);
79072805
LW		 3051 yylval.ival = OP_BACKTICK;
3052 set_csh();
3053 TERM(sublex_start());
3054
3055 case KEY_return:
3056 OLDLOP(OP_RETURN);
3057
3058 case KEY_require:
748a9306 3059 *tokenbuf = '\0';
a0d0e21e 3060 s = force_word(s,WORD,TRUE,TRUE,FALSE);
748a9306
LW		 3061 if (isIDFIRST(*tokenbuf))
3062 gv_stashpv(tokenbuf, TRUE);
3063 else if (*s == '<')
a0d0e21e 3064 yyerror("<> should be quotes");
463ee0b2 3065 UNI(OP_REQUIRE);
79072805
LW		 3066
3067 case KEY_reset:
3068 UNI(OP_RESET);
3069
3070 case KEY_redo:
a0d0e21e 3071 s = force_word(s,WORD,TRUE,FALSE,FALSE);
79072805
LW		 3072 LOOPX(OP_REDO);
3073
3074 case KEY_rename:
a0d0e21e 3075 LOP(OP_RENAME,XTERM);
79072805
LW		 3076
3077 case KEY_rand:
3078 UNI(OP_RAND);
3079
3080 case KEY_rmdir:
3081 UNI(OP_RMDIR);
3082
3083 case KEY_rindex:
a0d0e21e 3084 LOP(OP_RINDEX,XTERM);
79072805
LW		 3085
3086 case KEY_read:
a0d0e21e 3087 LOP(OP_READ,XTERM);
79072805
LW		 3088
3089 case KEY_readdir:
3090 UNI(OP_READDIR);
3091
93a17b20
LW		 3092 case KEY_readline:
3093 set_csh();
3094 UNI(OP_READLINE);
3095
3096 case KEY_readpipe:
3097 set_csh();
3098 UNI(OP_BACKTICK);
3099
79072805
LW		 3100 case KEY_rewinddir:
3101 UNI(OP_REWINDDIR);
3102
3103 case KEY_recv:
a0d0e21e 3104 LOP(OP_RECV,XTERM);
79072805
LW		 3105
3106 case KEY_reverse:
a0d0e21e 3107 LOP(OP_REVERSE,XTERM);
79072805
LW		 3108
3109 case KEY_readlink:
3110 UNI(OP_READLINK);
3111
3112 case KEY_ref:
3113 UNI(OP_REF);
3114
3115 case KEY_s:
3116 s = scan_subst(s);
3117 if (yylval.opval)
3118 TERM(sublex_start());
3119 else
3120 TOKEN(1); /* force error */
3121
a0d0e21e
LW		 3122 case KEY_chomp:
3123 UNI(OP_CHOMP);
3124
79072805
LW		 3125 case KEY_scalar:
3126 UNI(OP_SCALAR);
3127
3128 case KEY_select:
a0d0e21e 3129 LOP(OP_SELECT,XTERM);
79072805
LW		 3130
3131 case KEY_seek:
a0d0e21e 3132 LOP(OP_SEEK,XTERM);
79072805
LW		 3133
3134 case KEY_semctl:
a0d0e21e 3135 LOP(OP_SEMCTL,XTERM);
79072805
LW		 3136
3137 case KEY_semget:
a0d0e21e 3138 LOP(OP_SEMGET,XTERM);
79072805
LW		 3139
3140 case KEY_semop:
a0d0e21e 3141 LOP(OP_SEMOP,XTERM);
79072805
LW		 3142
3143 case KEY_send:
a0d0e21e 3144 LOP(OP_SEND,XTERM);
79072805
LW		 3145
3146 case KEY_setpgrp:
a0d0e21e 3147 LOP(OP_SETPGRP,XTERM);
79072805
LW		 3148
3149 case KEY_setpriority:
a0d0e21e 3150 LOP(OP_SETPRIORITY,XTERM);
79072805
LW		 3151
3152 case KEY_sethostent:
3153 FUN1(OP_SHOSTENT);
3154
3155 case KEY_setnetent:
3156 FUN1(OP_SNETENT);
3157
3158 case KEY_setservent:
3159 FUN1(OP_SSERVENT);
3160
3161 case KEY_setprotoent:
3162 FUN1(OP_SPROTOENT);
3163
3164 case KEY_setpwent:
3165 FUN0(OP_SPWENT);
3166
3167 case KEY_setgrent:
3168 FUN0(OP_SGRENT);
3169
3170 case KEY_seekdir:
a0d0e21e 3171 LOP(OP_SEEKDIR,XTERM);
79072805
LW		 3172
3173 case KEY_setsockopt:
a0d0e21e 3174 LOP(OP_SSOCKOPT,XTERM);
79072805
LW		 3175
3176 case KEY_shift:
3177 UNI(OP_SHIFT);
3178
3179 case KEY_shmctl:
a0d0e21e 3180 LOP(OP_SHMCTL,XTERM);
79072805
LW		 3181
3182 case KEY_shmget:
a0d0e21e 3183 LOP(OP_SHMGET,XTERM);
79072805
LW		 3184
3185 case KEY_shmread:
a0d0e21e 3186 LOP(OP_SHMREAD,XTERM);
79072805
LW		 3187
3188 case KEY_shmwrite:
a0d0e21e 3189 LOP(OP_SHMWRITE,XTERM);
79072805
LW		 3190
3191 case KEY_shutdown:
a0d0e21e 3192 LOP(OP_SHUTDOWN,XTERM);
79072805
LW		 3193
3194 case KEY_sin:
3195 UNI(OP_SIN);
3196
3197 case KEY_sleep:
3198 UNI(OP_SLEEP);
3199
3200 case KEY_socket:
a0d0e21e 3201 LOP(OP_SOCKET,XTERM);
79072805
LW		 3202
3203 case KEY_socketpair:
a0d0e21e 3204 LOP(OP_SOCKPAIR,XTERM);
79072805
LW		 3205
3206 case KEY_sort:
3207 checkcomma(s,tokenbuf,"subroutine name");
3208 s = skipspace(s);
3209 if (*s == ';' || *s == ')') /* probably a close */
463ee0b2
LW		 3210 croak("sort is now a reserved word");
3211 expect = XTERM;
a0d0e21e
LW		 3212 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3213 LOP(OP_SORT,XREF);
79072805
LW		 3214
3215 case KEY_split:
a0d0e21e 3216 LOP(OP_SPLIT,XTERM);
79072805
LW		 3217
3218 case KEY_sprintf:
a0d0e21e 3219 LOP(OP_SPRINTF,XTERM);
79072805
LW		 3220
3221 case KEY_splice:
a0d0e21e 3222 LOP(OP_SPLICE,XTERM);
79072805
LW		 3223
3224 case KEY_sqrt:
3225 UNI(OP_SQRT);
3226
3227 case KEY_srand:
3228 UNI(OP_SRAND);
3229
3230 case KEY_stat:
3231 UNI(OP_STAT);
3232
3233 case KEY_study:
3234 sawstudy++;
3235 UNI(OP_STUDY);
3236
3237 case KEY_substr:
a0d0e21e 3238 LOP(OP_SUBSTR,XTERM);
79072805
LW		 3239
3240 case KEY_format:
3241 case KEY_sub:
93a17b20 3242 really_sub:
79072805 3243 s = skipspace(s);
4633a7c4 3244
463ee0b2
LW		 3245 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3246 char tmpbuf[128];
4633a7c4 3247 expect = XBLOCK;
463ee0b2
LW		 3248 d = scan_word(s, tmpbuf, TRUE, &len);
3249 if (strchr(tmpbuf, ':'))
3250 sv_setpv(subname, tmpbuf);
3251 else {
3252 sv_setsv(subname,curstname);
8990e307 3253 sv_catpvn(subname,"::",2);
463ee0b2
LW		 3254 sv_catpvn(subname,tmpbuf,len);
3255 }
a0d0e21e 3256 s = force_word(s,WORD,FALSE,TRUE,TRUE);
4633a7c4 3257 s = skipspace(s);
79072805 3258 }
4633a7c4
LW		 3259 else {
3260 expect = XTERMBLOCK;
79072805 3261 sv_setpv(subname,"?");
4633a7c4
LW		 3262 }
3263
3264 if (tmp == KEY_format) {
3265 s = skipspace(s);
3266 if (*s == '=')
3267 lex_formbrack = lex_brackets + 1;
3268 OPERATOR(FORMAT);
3269 }
79072805 3270
4633a7c4
LW		 3271 /* Look for a prototype */
3272 if (*s == '(') {
3273 s = scan_str(s);
3274 if (!s) {
3275 if (lex_stuff)
3276 SvREFCNT_dec(lex_stuff);
3277 lex_stuff = Nullsv;
3278 croak("Prototype not terminated");
3279 }
3280 nexttoke++;
3281 nextval[1] = nextval[0];
3282 nexttype[1] = nexttype[0];
3283 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3284 nexttype[0] = THING;
3285 if (nexttoke == 1) {
3286 lex_defer = lex_state;
3287 lex_expect = expect;
3288 lex_state = LEX_KNOWNEXT;
3289 }
3290 lex_stuff = Nullsv;
3291 }
79072805 3292
4633a7c4
LW		 3293 if (*SvPV(subname,na) == '?') {
3294 sv_setpv(subname,"__ANON__");
3295 TOKEN(ANONSUB);
3296 }
3297 PREBLOCK(SUB);
79072805
LW		 3298
3299 case KEY_system:
3300 set_csh();
a0d0e21e 3301 LOP(OP_SYSTEM,XREF);
79072805
LW		 3302
3303 case KEY_symlink:
a0d0e21e 3304 LOP(OP_SYMLINK,XTERM);
79072805
LW		 3305
3306 case KEY_syscall:
a0d0e21e 3307 LOP(OP_SYSCALL,XTERM);
79072805 3308
c07a80fd 3309 case KEY_sysopen:
3310 LOP(OP_SYSOPEN,XTERM);
3311
79072805 3312 case KEY_sysread:
a0d0e21e 3313 LOP(OP_SYSREAD,XTERM);
79072805
LW		 3314
3315 case KEY_syswrite:
a0d0e21e 3316 LOP(OP_SYSWRITE,XTERM);
79072805
LW		 3317
3318 case KEY_tr:
3319 s = scan_trans(s);
3320 TERM(sublex_start());
3321
3322 case KEY_tell:
3323 UNI(OP_TELL);
3324
3325 case KEY_telldir:
3326 UNI(OP_TELLDIR);
3327
463ee0b2 3328 case KEY_tie:
a0d0e21e 3329 LOP(OP_TIE,XTERM);
463ee0b2 3330
c07a80fd 3331 case KEY_tied:
3332 UNI(OP_TIED);
3333
79072805
LW		 3334 case KEY_time:
3335 FUN0(OP_TIME);
3336
3337 case KEY_times:
3338 FUN0(OP_TMS);
3339
3340 case KEY_truncate:
a0d0e21e 3341 LOP(OP_TRUNCATE,XTERM);
79072805
LW		 3342
3343 case KEY_uc:
3344 UNI(OP_UC);
3345
3346 case KEY_ucfirst:
3347 UNI(OP_UCFIRST);
3348
463ee0b2
LW		 3349 case KEY_untie:
3350 UNI(OP_UNTIE);
3351
79072805
LW		 3352 case KEY_until:
3353 yylval.ival = curcop->cop_line;
3354 OPERATOR(UNTIL);
3355
3356 case KEY_unless:
3357 yylval.ival = curcop->cop_line;
3358 OPERATOR(UNLESS);
3359
3360 case KEY_unlink:
a0d0e21e 3361 LOP(OP_UNLINK,XTERM);
79072805
LW		 3362
3363 case KEY_undef:
3364 UNI(OP_UNDEF);
3365
3366 case KEY_unpack:
a0d0e21e 3367 LOP(OP_UNPACK,XTERM);
79072805
LW		 3368
3369 case KEY_utime:
a0d0e21e 3370 LOP(OP_UTIME,XTERM);
79072805
LW		 3371
3372 case KEY_umask:
748a9306
LW		 3373 if (dowarn) {
3374 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3375 if (*d != '0' && isDIGIT(*d))
3376 yywarn("umask: argument is missing initial 0");
3377 }
79072805
LW		 3378 UNI(OP_UMASK);
3379
3380 case KEY_unshift:
a0d0e21e
LW		 3381 LOP(OP_UNSHIFT,XTERM);
3382
3383 case KEY_use:
3384 if (expect != XSTATE)
3385 yyerror("\"use\" not allowed in expression");
3386 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3387 yylval.ival = 1;
3388 OPERATOR(USE);
79072805
LW		 3389
3390 case KEY_values:
3391 UNI(OP_VALUES);
3392
3393 case KEY_vec:
3394 sawvec = TRUE;
a0d0e21e 3395 LOP(OP_VEC,XTERM);
79072805
LW		 3396
3397 case KEY_while:
3398 yylval.ival = curcop->cop_line;
3399 OPERATOR(WHILE);
3400
3401 case KEY_warn:
a0d0e21e
LW		 3402 hints |= HINT_BLOCK_SCOPE;
3403 LOP(OP_WARN,XTERM);
79072805
LW		 3404
3405 case KEY_wait:
3406 FUN0(OP_WAIT);
3407
3408 case KEY_waitpid:
a0d0e21e 3409 LOP(OP_WAITPID,XTERM);
79072805
LW		 3410
3411 case KEY_wantarray:
3412 FUN0(OP_WANTARRAY);
3413
3414 case KEY_write:
85e6fe83 3415 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
79072805
LW		 3416 UNI(OP_ENTERWRITE);
3417
3418 case KEY_x:
3419 if (expect == XOPERATOR)
3420 Mop(OP_REPEAT);
3421 check_uni();
3422 goto just_a_word;
3423
a0d0e21e
LW		 3424 case KEY_xor:
3425 yylval.ival = OP_XOR;
3426 OPERATOR(OROP);
3427
79072805
LW		 3428 case KEY_y:
3429 s = scan_trans(s);
3430 TERM(sublex_start());
3431 }
3432 }
3433}
3434
3435I32
3436keyword(d, len)
3437register char *d;
3438I32 len;
3439{
3440 switch (*d) {
3441 case '_':
3442 if (d[1] == '_') {
a0d0e21e
LW		 3443 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3444 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
e50aee73 3445 if (strEQ(d,"__DATA__")) return KEY___DATA__;
79072805
LW		 3446 if (strEQ(d,"__END__")) return KEY___END__;
3447 }
3448 break;
8990e307
LW		 3449 case 'A':
3450 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3451 break;
79072805 3452 case 'a':
463ee0b2
LW		 3453 switch (len) {
3454 case 3:
a0d0e21e
LW		 3455 if (strEQ(d,"and")) return -KEY_and;
3456 if (strEQ(d,"abs")) return -KEY_abs;
85e6fe83 3457 break;
463ee0b2 3458 case 5:
a0d0e21e
LW		 3459 if (strEQ(d,"alarm")) return -KEY_alarm;
3460 if (strEQ(d,"atan2")) return -KEY_atan2;
463ee0b2
LW		 3461 break;
3462 case 6:
a0d0e21e 3463 if (strEQ(d,"accept")) return -KEY_accept;
463ee0b2
LW		 3464 break;
3465 }
79072805
LW		 3466 break;
3467 case 'B':
3468 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
93a17b20 3469 break;
79072805 3470 case 'b':
a0d0e21e
LW		 3471 if (strEQ(d,"bless")) return -KEY_bless;
3472 if (strEQ(d,"bind")) return -KEY_bind;
3473 if (strEQ(d,"binmode")) return -KEY_binmode;
3474 break;
3475 case 'C':
3476 if (strEQ(d,"CORE")) return -KEY_CORE;
79072805
LW		 3477 break;
3478 case 'c':
3479 switch (len) {
3480 case 3:
a0d0e21e
LW		 3481 if (strEQ(d,"cmp")) return -KEY_cmp;
3482 if (strEQ(d,"chr")) return -KEY_chr;
3483 if (strEQ(d,"cos")) return -KEY_cos;
79072805
LW		 3484 break;
3485 case 4:
3486 if (strEQ(d,"chop")) return KEY_chop;
3487 break;
3488 case 5:
a0d0e21e
LW		 3489 if (strEQ(d,"close")) return -KEY_close;
3490 if (strEQ(d,"chdir")) return -KEY_chdir;
3491 if (strEQ(d,"chomp")) return KEY_chomp;
3492 if (strEQ(d,"chmod")) return -KEY_chmod;
3493 if (strEQ(d,"chown")) return -KEY_chown;
3494 if (strEQ(d,"crypt")) return -KEY_crypt;
79072805
LW		 3495 break;
3496 case 6:
a0d0e21e
LW		 3497 if (strEQ(d,"chroot")) return -KEY_chroot;
3498 if (strEQ(d,"caller")) return -KEY_caller;
79072805
LW		 3499 break;
3500 case 7:
a0d0e21e 3501 if (strEQ(d,"connect")) return -KEY_connect;
79072805
LW		 3502 break;
3503 case 8:
a0d0e21e
LW		 3504 if (strEQ(d,"closedir")) return -KEY_closedir;
3505 if (strEQ(d,"continue")) return -KEY_continue;
79072805
LW		 3506 break;
3507 }
3508 break;
ed6116ce
LW		 3509 case 'D':
3510 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3511 break;
79072805
LW		 3512 case 'd':
3513 switch (len) {
3514 case 2:
3515 if (strEQ(d,"do")) return KEY_do;
3516 break;
3517 case 3:
a0d0e21e 3518 if (strEQ(d,"die")) return -KEY_die;
79072805
LW		 3519 break;
3520 case 4:
a0d0e21e 3521 if (strEQ(d,"dump")) return -KEY_dump;
79072805
LW		 3522 break;
3523 case 6:
3524 if (strEQ(d,"delete")) return KEY_delete;
3525 break;
3526 case 7:
3527 if (strEQ(d,"defined")) return KEY_defined;
a0d0e21e 3528 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
79072805
LW		 3529 break;
3530 case 8:
a0d0e21e 3531 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
79072805
LW		 3532 break;
3533 }
3534 break;
3535 case 'E':
a0d0e21e 3536 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
79072805
LW		 3537 if (strEQ(d,"END")) return KEY_END;
3538 break;
3539 case 'e':
3540 switch (len) {
3541 case 2:
a0d0e21e 3542 if (strEQ(d,"eq")) return -KEY_eq;
79072805
LW		 3543 break;
3544 case 3:
a0d0e21e
LW		 3545 if (strEQ(d,"eof")) return -KEY_eof;
3546 if (strEQ(d,"exp")) return -KEY_exp;
79072805
LW		 3547 break;
3548 case 4:
3549 if (strEQ(d,"else")) return KEY_else;
a0d0e21e 3550 if (strEQ(d,"exit")) return -KEY_exit;
79072805 3551 if (strEQ(d,"eval")) return KEY_eval;
a0d0e21e 3552 if (strEQ(d,"exec")) return -KEY_exec;
79072805
LW		 3553 if (strEQ(d,"each")) return KEY_each;
3554 break;
3555 case 5:
3556 if (strEQ(d,"elsif")) return KEY_elsif;
3557 break;
a0d0e21e
LW		 3558 case 6:
3559 if (strEQ(d,"exists")) return KEY_exists;
4633a7c4 3560 if (strEQ(d,"elseif")) warn("elseif should be elsif");
a0d0e21e 3561 break;
79072805 3562 case 8:
a0d0e21e
LW		 3563 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3564 if (strEQ(d,"endpwent")) return -KEY_endpwent;
79072805
LW		 3565 break;
3566 case 9:
a0d0e21e 3567 if (strEQ(d,"endnetent")) return -KEY_endnetent;
79072805
LW		 3568 break;
3569 case 10:
a0d0e21e
LW		 3570 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3571 if (strEQ(d,"endservent")) return -KEY_endservent;
79072805
LW		 3572 break;
3573 case 11:
a0d0e21e 3574 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
79072805 3575 break;
a687059c 3576 }
a687059c 3577 break;
79072805
LW		 3578 case 'f':
3579 switch (len) {
3580 case 3:
3581 if (strEQ(d,"for")) return KEY_for;
3582 break;
3583 case 4:
a0d0e21e 3584 if (strEQ(d,"fork")) return -KEY_fork;
79072805
LW		 3585 break;
3586 case 5:
a0d0e21e
LW		 3587 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3588 if (strEQ(d,"flock")) return -KEY_flock;
79072805
LW		 3589 break;
3590 case 6:
3591 if (strEQ(d,"format")) return KEY_format;
a0d0e21e 3592 if (strEQ(d,"fileno")) return -KEY_fileno;
79072805
LW		 3593 break;
3594 case 7:
3595 if (strEQ(d,"foreach")) return KEY_foreach;
3596 break;
3597 case 8:
a0d0e21e 3598 if (strEQ(d,"formline")) return -KEY_formline;
79072805 3599 break;
378cc40b 3600 }
a687059c 3601 break;
79072805
LW		 3602 case 'G':
3603 if (len == 2) {
a0d0e21e
LW		 3604 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3605 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
9f68db38 3606 }
a687059c 3607 break;
79072805 3608 case 'g':
a687059c
LW		 3609 if (strnEQ(d,"get",3)) {
3610 d += 3;
3611 if (*d == 'p') {
79072805
LW		 3612 switch (len) {
3613 case 7:
a0d0e21e
LW		 3614 if (strEQ(d,"ppid")) return -KEY_getppid;
3615 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
79072805
LW		 3616 break;
3617 case 8:
a0d0e21e
LW		 3618 if (strEQ(d,"pwent")) return -KEY_getpwent;
3619 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3620 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
79072805
LW		 3621 break;
3622 case 11:
a0d0e21e
LW		 3623 if (strEQ(d,"peername")) return -KEY_getpeername;
3624 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3625 if (strEQ(d,"priority")) return -KEY_getpriority;
79072805
LW		 3626 break;
3627 case 14:
a0d0e21e 3628 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
79072805
LW		 3629 break;
3630 case 16:
a0d0e21e 3631 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
79072805
LW		 3632 break;
3633 }
a687059c
LW		 3634 }
3635 else if (*d == 'h') {
a0d0e21e
LW		 3636 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3637 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3638 if (strEQ(d,"hostent")) return -KEY_gethostent;
a687059c
LW		 3639 }
3640 else if (*d == 'n') {
a0d0e21e
LW		 3641 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3642 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3643 if (strEQ(d,"netent")) return -KEY_getnetent;
a687059c
LW		 3644 }
3645 else if (*d == 's') {
a0d0e21e
LW		 3646 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3647 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3648 if (strEQ(d,"servent")) return -KEY_getservent;
3649 if (strEQ(d,"sockname")) return -KEY_getsockname;
3650 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
a687059c
LW		 3651 }
3652 else if (*d == 'g') {
a0d0e21e
LW		 3653 if (strEQ(d,"grent")) return -KEY_getgrent;
3654 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3655 if (strEQ(d,"grgid")) return -KEY_getgrgid;
a687059c
LW		 3656 }
3657 else if (*d == 'l') {
a0d0e21e 3658 if (strEQ(d,"login")) return -KEY_getlogin;
a687059c 3659 }
a0d0e21e 3660 else if (strEQ(d,"c")) return -KEY_getc;
79072805 3661 break;
a687059c 3662 }
79072805
LW		 3663 switch (len) {
3664 case 2:
a0d0e21e
LW		 3665 if (strEQ(d,"gt")) return -KEY_gt;
3666 if (strEQ(d,"ge")) return -KEY_ge;
79072805
LW		 3667 break;
3668 case 4:
3669 if (strEQ(d,"grep")) return KEY_grep;
3670 if (strEQ(d,"goto")) return KEY_goto;
a0d0e21e 3671 if (strEQ(d,"glob")) return -KEY_glob;
79072805
LW		 3672 break;
3673 case 6:
a0d0e21e 3674 if (strEQ(d,"gmtime")) return -KEY_gmtime;
79072805 3675 break;
378cc40b 3676 }
a687059c 3677 break;
79072805 3678 case 'h':
a0d0e21e 3679 if (strEQ(d,"hex")) return -KEY_hex;
a687059c 3680 break;
79072805
LW		 3681 case 'i':
3682 switch (len) {
3683 case 2:
3684 if (strEQ(d,"if")) return KEY_if;
3685 break;
3686 case 3:
a0d0e21e 3687 if (strEQ(d,"int")) return -KEY_int;
79072805
LW		 3688 break;
3689 case 5:
a0d0e21e
LW		 3690 if (strEQ(d,"index")) return -KEY_index;
3691 if (strEQ(d,"ioctl")) return -KEY_ioctl;
79072805
LW		 3692 break;
3693 }
a687059c 3694 break;
79072805 3695 case 'j':
a0d0e21e 3696 if (strEQ(d,"join")) return -KEY_join;
a687059c 3697 break;
79072805
LW		 3698 case 'k':
3699 if (len == 4) {
3700 if (strEQ(d,"keys")) return KEY_keys;
a0d0e21e 3701 if (strEQ(d,"kill")) return -KEY_kill;
663a0e37 3702 }
79072805
LW		 3703 break;
3704 case 'L':
3705 if (len == 2) {
a0d0e21e
LW		 3706 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3707 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
378cc40b 3708 }
79072805
LW		 3709 break;
3710 case 'l':
3711 switch (len) {
3712 case 2:
a0d0e21e
LW		 3713 if (strEQ(d,"lt")) return -KEY_lt;
3714 if (strEQ(d,"le")) return -KEY_le;
3715 if (strEQ(d,"lc")) return -KEY_lc;
79072805
LW		 3716 break;
3717 case 3:
a0d0e21e 3718 if (strEQ(d,"log")) return -KEY_log;
79072805
LW		 3719 break;
3720 case 4:
3721 if (strEQ(d,"last")) return KEY_last;
a0d0e21e 3722 if (strEQ(d,"link")) return -KEY_link;
395c3793 3723 break;
79072805
LW		 3724 case 5:
3725 if (strEQ(d,"local")) return KEY_local;
a0d0e21e 3726 if (strEQ(d,"lstat")) return -KEY_lstat;
79072805
LW		 3727 break;
3728 case 6:
a0d0e21e
LW		 3729 if (strEQ(d,"length")) return -KEY_length;
3730 if (strEQ(d,"listen")) return -KEY_listen;
79072805
LW		 3731 break;
3732 case 7:
a0d0e21e 3733 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
79072805
LW		 3734 break;
3735 case 9:
a0d0e21e 3736 if (strEQ(d,"localtime")) return -KEY_localtime;
395c3793
LW		 3737 break;
3738 }
a687059c 3739 break;
79072805
LW		 3740 case 'm':
3741 switch (len) {
3742 case 1: return KEY_m;
93a17b20
LW		 3743 case 2:
3744 if (strEQ(d,"my")) return KEY_my;
3745 break;
a0d0e21e
LW		 3746 case 3:
3747 if (strEQ(d,"map")) return KEY_map;
3748 break;
79072805 3749 case 5:
a0d0e21e 3750 if (strEQ(d,"mkdir")) return -KEY_mkdir;
79072805
LW		 3751 break;
3752 case 6:
a0d0e21e
LW		 3753 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3754 if (strEQ(d,"msgget")) return -KEY_msgget;
3755 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3756 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
79072805
LW		 3757 break;
3758 }
a687059c 3759 break;
79072805 3760 case 'N':
a0d0e21e 3761 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
a687059c 3762 break;
79072805
LW		 3763 case 'n':
3764 if (strEQ(d,"next")) return KEY_next;
a0d0e21e
LW		 3765 if (strEQ(d,"ne")) return -KEY_ne;
3766 if (strEQ(d,"not")) return -KEY_not;
3767 if (strEQ(d,"no")) return KEY_no;
a687059c 3768 break;
79072805
LW		 3769 case 'o':
3770 switch (len) {
463ee0b2 3771 case 2:
a0d0e21e 3772 if (strEQ(d,"or")) return -KEY_or;
463ee0b2 3773 break;
79072805 3774 case 3:
a0d0e21e
LW		 3775 if (strEQ(d,"ord")) return -KEY_ord;
3776 if (strEQ(d,"oct")) return -KEY_oct;
79072805
LW		 3777 break;
3778 case 4:
a0d0e21e 3779 if (strEQ(d,"open")) return -KEY_open;
79072805
LW		 3780 break;
3781 case 7:
a0d0e21e 3782 if (strEQ(d,"opendir")) return -KEY_opendir;
79072805 3783 break;
fe14fcc3 3784 }
a687059c 3785 break;
79072805
LW		 3786 case 'p':
3787 switch (len) {
3788 case 3:
3789 if (strEQ(d,"pop")) return KEY_pop;
a0d0e21e 3790 if (strEQ(d,"pos")) return KEY_pos;
79072805
LW		 3791 break;
3792 case 4:
3793 if (strEQ(d,"push")) return KEY_push;
a0d0e21e
LW		 3794 if (strEQ(d,"pack")) return -KEY_pack;
3795 if (strEQ(d,"pipe")) return -KEY_pipe;
79072805
LW		 3796 break;
3797 case 5:
3798 if (strEQ(d,"print")) return KEY_print;
3799 break;
3800 case 6:
3801 if (strEQ(d,"printf")) return KEY_printf;
3802 break;
3803 case 7:
3804 if (strEQ(d,"package")) return KEY_package;
3805 break;
c07a80fd 3806 case 9:
3807 if (strEQ(d,"prototype")) return KEY_prototype;
663a0e37 3808 }
79072805
LW		 3809 break;
3810 case 'q':
3811 if (len <= 2) {
3812 if (strEQ(d,"q")) return KEY_q;
3813 if (strEQ(d,"qq")) return KEY_qq;
8990e307 3814 if (strEQ(d,"qw")) return KEY_qw;
79072805 3815 if (strEQ(d,"qx")) return KEY_qx;
663a0e37 3816 }
a0d0e21e 3817 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
79072805
LW		 3818 break;
3819 case 'r':
3820 switch (len) {
3821 case 3:
a0d0e21e 3822 if (strEQ(d,"ref")) return -KEY_ref;
79072805
LW		 3823 break;
3824 case 4:
a0d0e21e
LW		 3825 if (strEQ(d,"read")) return -KEY_read;
3826 if (strEQ(d,"rand")) return -KEY_rand;
3827 if (strEQ(d,"recv")) return -KEY_recv;
79072805
LW		 3828 if (strEQ(d,"redo")) return KEY_redo;
3829 break;
3830 case 5:
a0d0e21e
LW		 3831 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3832 if (strEQ(d,"reset")) return -KEY_reset;
79072805
LW		 3833 break;
3834 case 6:
3835 if (strEQ(d,"return")) return KEY_return;
a0d0e21e
LW		 3836 if (strEQ(d,"rename")) return -KEY_rename;
3837 if (strEQ(d,"rindex")) return -KEY_rindex;
79072805
LW		 3838 break;
3839 case 7:
a0d0e21e
LW		 3840 if (strEQ(d,"require")) return -KEY_require;
3841 if (strEQ(d,"reverse")) return -KEY_reverse;
3842 if (strEQ(d,"readdir")) return -KEY_readdir;
79072805
LW		 3843 break;
3844 case 8:
a0d0e21e
LW		 3845 if (strEQ(d,"readlink")) return -KEY_readlink;
3846 if (strEQ(d,"readline")) return -KEY_readline;
3847 if (strEQ(d,"readpipe")) return -KEY_readpipe;
79072805
LW		 3848 break;
3849 case 9:
a0d0e21e 3850 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
79072805 3851 break;
a687059c 3852 }
79072805
LW		 3853 break;
3854 case 's':
a687059c 3855 switch (d[1]) {
79072805 3856 case 0: return KEY_s;
a687059c 3857 case 'c':
79072805 3858 if (strEQ(d,"scalar")) return KEY_scalar;
a687059c
LW		 3859 break;
3860 case 'e':
79072805
LW		 3861 switch (len) {
3862 case 4:
a0d0e21e
LW		 3863 if (strEQ(d,"seek")) return -KEY_seek;
3864 if (strEQ(d,"send")) return -KEY_send;
79072805
LW		 3865 break;
3866 case 5:
a0d0e21e 3867 if (strEQ(d,"semop")) return -KEY_semop;
79072805
LW		 3868 break;
3869 case 6:
a0d0e21e
LW		 3870 if (strEQ(d,"select")) return -KEY_select;
3871 if (strEQ(d,"semctl")) return -KEY_semctl;
3872 if (strEQ(d,"semget")) return -KEY_semget;
79072805
LW		 3873 break;
3874 case 7:
a0d0e21e
LW		 3875 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3876 if (strEQ(d,"seekdir")) return -KEY_seekdir;
79072805
LW		 3877 break;
3878 case 8:
a0d0e21e
LW		 3879 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3880 if (strEQ(d,"setgrent")) return -KEY_setgrent;
79072805
LW		 3881 break;
3882 case 9:
a0d0e21e 3883 if (strEQ(d,"setnetent")) return -KEY_setnetent;
79072805
LW		 3884 break;
3885 case 10:
a0d0e21e
LW		 3886 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3887 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3888 if (strEQ(d,"setservent")) return -KEY_setservent;
79072805
LW		 3889 break;
3890 case 11:
a0d0e21e
LW		 3891 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3892 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
79072805
LW		 3893 break;
3894 }
a687059c
LW		 3895 break;