Commit | Line | Data |
a0d0e21e |
1 | /* pp_ctl.c |
2 | * |
3 | * Copyright (c) 1991-1994, Larry Wall |
4 | * |
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. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * Now far ahead the Road has gone, |
12 | * And I must follow, if I can, |
13 | * Pursuing it with eager feet, |
14 | * Until it joins some larger way |
15 | * Where many paths and errands meet. |
16 | * And whither then? I cannot say. |
17 | */ |
18 | |
19 | #include "EXTERN.h" |
20 | #include "perl.h" |
21 | |
22 | #ifndef WORD_ALIGN |
23 | #define WORD_ALIGN sizeof(U16) |
24 | #endif |
25 | |
1e422769 |
26 | #define DOCATCH(o) (mustcatch ? docatch(o) : (o)) |
27 | |
28 | static OP *docatch _((OP *o)); |
a0d0e21e |
29 | static OP *doeval _((int gimme)); |
30 | static OP *dofindlabel _((OP *op, char *label, OP **opstack)); |
31 | static void doparseform _((SV *sv)); |
32 | static I32 dopoptoeval _((I32 startingblock)); |
33 | static I32 dopoptolabel _((char *label)); |
34 | static I32 dopoptoloop _((I32 startingblock)); |
35 | static I32 dopoptosub _((I32 startingblock)); |
36 | static void save_lines _((AV *array, SV *sv)); |
a0d0e21e |
37 | static int sortcv _((const void *, const void *)); |
bbce6d69 |
38 | static int sortcmp _((const void *, const void *)); |
39 | static int sortcmp_locale _((const void *, const void *)); |
a0d0e21e |
40 | |
41 | static I32 sortcxix; |
42 | |
43 | PP(pp_wantarray) |
44 | { |
45 | dSP; |
46 | I32 cxix; |
47 | EXTEND(SP, 1); |
48 | |
49 | cxix = dopoptosub(cxstack_ix); |
50 | if (cxix < 0) |
51 | RETPUSHUNDEF; |
52 | |
53 | if (cxstack[cxix].blk_gimme == G_ARRAY) |
54 | RETPUSHYES; |
55 | else |
56 | RETPUSHNO; |
57 | } |
58 | |
59 | PP(pp_regcmaybe) |
60 | { |
61 | return NORMAL; |
62 | } |
63 | |
64 | PP(pp_regcomp) { |
65 | dSP; |
66 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
67 | register char *t; |
68 | SV *tmpstr; |
69 | STRLEN len; |
70 | |
71 | tmpstr = POPs; |
72 | t = SvPV(tmpstr, len); |
73 | |
4633a7c4 |
74 | /* JMR: Check against the last compiled regexp */ |
75 | if ( ! pm->op_pmregexp || ! pm->op_pmregexp->precomp |
76 | || strnNE(pm->op_pmregexp->precomp, t, len) |
77 | || pm->op_pmregexp->precomp[len]) { |
78 | if (pm->op_pmregexp) { |
79 | pregfree(pm->op_pmregexp); |
80 | pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */ |
81 | } |
a0d0e21e |
82 | |
4633a7c4 |
83 | pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */ |
84 | pm->op_pmregexp = pregcomp(t, t + len, pm); |
85 | } |
a0d0e21e |
86 | |
87 | if (!pm->op_pmregexp->prelen && curpm) |
88 | pm = curpm; |
89 | else if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
90 | pm->op_pmflags |= PMf_WHITE; |
91 | |
92 | if (pm->op_pmflags & PMf_KEEP) { |
a0d0e21e |
93 | pm->op_pmflags &= ~PMf_RUNTIME; /* no point compiling again */ |
94 | hoistmust(pm); |
95 | cLOGOP->op_first->op_next = op->op_next; |
a0d0e21e |
96 | } |
97 | RETURN; |
98 | } |
99 | |
100 | PP(pp_substcont) |
101 | { |
102 | dSP; |
103 | register PMOP *pm = (PMOP*) cLOGOP->op_other; |
104 | register CONTEXT *cx = &cxstack[cxstack_ix]; |
105 | register SV *dstr = cx->sb_dstr; |
106 | register char *s = cx->sb_s; |
107 | register char *m = cx->sb_m; |
108 | char *orig = cx->sb_orig; |
c07a80fd |
109 | register REGEXP *rx = cx->sb_rx; |
a0d0e21e |
110 | |
111 | if (cx->sb_iters++) { |
112 | if (cx->sb_iters > cx->sb_maxiters) |
113 | DIE("Substitution loop"); |
114 | |
71be2cbc |
115 | if (!cx->sb_rxtainted) |
116 | cx->sb_rxtainted = SvTAINTED(TOPs); |
a0d0e21e |
117 | sv_catsv(dstr, POPs); |
118 | if (rx->subbase) |
119 | Safefree(rx->subbase); |
120 | rx->subbase = cx->sb_subbase; |
121 | |
122 | /* Are we done */ |
e50aee73 |
123 | if (cx->sb_once || !pregexec(rx, s, cx->sb_strend, orig, |
a0d0e21e |
124 | s == m, Nullsv, cx->sb_safebase)) |
125 | { |
126 | SV *targ = cx->sb_targ; |
127 | sv_catpvn(dstr, s, cx->sb_strend - s); |
748a9306 |
128 | |
9212bbba |
129 | TAINT_IF(cx->sb_rxtainted || rx->exec_tainted); |
130 | |
4633a7c4 |
131 | (void)SvOOK_off(targ); |
cb0b1708 |
132 | Safefree(SvPVX(targ)); |
748a9306 |
133 | SvPVX(targ) = SvPVX(dstr); |
134 | SvCUR_set(targ, SvCUR(dstr)); |
135 | SvLEN_set(targ, SvLEN(dstr)); |
136 | SvPVX(dstr) = 0; |
137 | sv_free(dstr); |
138 | |
a0d0e21e |
139 | (void)SvPOK_only(targ); |
140 | SvSETMAGIC(targ); |
9212bbba |
141 | SvTAINT(targ); |
a0d0e21e |
142 | PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1))); |
4633a7c4 |
143 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e |
144 | POPSUBST(cx); |
145 | RETURNOP(pm->op_next); |
146 | } |
147 | } |
148 | if (rx->subbase && rx->subbase != orig) { |
149 | m = s; |
150 | s = orig; |
151 | cx->sb_orig = orig = rx->subbase; |
152 | s = orig + (m - s); |
153 | cx->sb_strend = s + (cx->sb_strend - m); |
154 | } |
155 | cx->sb_m = m = rx->startp[0]; |
156 | sv_catpvn(dstr, s, m-s); |
157 | cx->sb_s = rx->endp[0]; |
158 | cx->sb_subbase = rx->subbase; |
71be2cbc |
159 | cx->sb_rxtainted |= rx->exec_tainted; |
a0d0e21e |
160 | |
161 | rx->subbase = Nullch; /* so recursion works */ |
162 | RETURNOP(pm->op_pmreplstart); |
163 | } |
164 | |
165 | PP(pp_formline) |
166 | { |
167 | dSP; dMARK; dORIGMARK; |
168 | register SV *form = *++MARK; |
169 | register U16 *fpc; |
170 | register char *t; |
171 | register char *f; |
172 | register char *s; |
173 | register char *send; |
174 | register I32 arg; |
175 | register SV *sv; |
176 | char *item; |
177 | I32 itemsize; |
178 | I32 fieldsize; |
179 | I32 lines = 0; |
180 | bool chopspace = (strchr(chopset, ' ') != Nullch); |
181 | char *chophere; |
182 | char *linemark; |
a0d0e21e |
183 | double value; |
184 | bool gotsome; |
185 | STRLEN len; |
186 | |
55497cff |
187 | if (!SvMAGICAL(form) || !SvCOMPILED(form)) { |
a0d0e21e |
188 | SvREADONLY_off(form); |
189 | doparseform(form); |
190 | } |
191 | |
192 | SvPV_force(formtarget, len); |
193 | t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */ |
194 | t += len; |
195 | f = SvPV(form, len); |
196 | /* need to jump to the next word */ |
197 | s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN; |
198 | |
199 | fpc = (U16*)s; |
200 | |
201 | for (;;) { |
202 | DEBUG_f( { |
203 | char *name = "???"; |
204 | arg = -1; |
205 | switch (*fpc) { |
206 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; |
207 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; |
208 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; |
209 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; |
210 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; |
211 | |
212 | case FF_CHECKNL: name = "CHECKNL"; break; |
213 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; |
214 | case FF_SPACE: name = "SPACE"; break; |
215 | case FF_HALFSPACE: name = "HALFSPACE"; break; |
216 | case FF_ITEM: name = "ITEM"; break; |
217 | case FF_CHOP: name = "CHOP"; break; |
218 | case FF_LINEGLOB: name = "LINEGLOB"; break; |
219 | case FF_NEWLINE: name = "NEWLINE"; break; |
220 | case FF_MORE: name = "MORE"; break; |
221 | case FF_LINEMARK: name = "LINEMARK"; break; |
222 | case FF_END: name = "END"; break; |
223 | } |
224 | if (arg >= 0) |
760ac839 |
225 | PerlIO_printf(PerlIO_stderr(), "%-16s%ld\n", name, (long) arg); |
a0d0e21e |
226 | else |
760ac839 |
227 | PerlIO_printf(PerlIO_stderr(), "%-16s\n", name); |
a0d0e21e |
228 | } ) |
229 | switch (*fpc++) { |
230 | case FF_LINEMARK: |
231 | linemark = t; |
a0d0e21e |
232 | lines++; |
233 | gotsome = FALSE; |
234 | break; |
235 | |
236 | case FF_LITERAL: |
237 | arg = *fpc++; |
238 | while (arg--) |
239 | *t++ = *f++; |
240 | break; |
241 | |
242 | case FF_SKIP: |
243 | f += *fpc++; |
244 | break; |
245 | |
246 | case FF_FETCH: |
247 | arg = *fpc++; |
248 | f += arg; |
249 | fieldsize = arg; |
250 | |
251 | if (MARK < SP) |
252 | sv = *++MARK; |
253 | else { |
254 | sv = &sv_no; |
255 | if (dowarn) |
256 | warn("Not enough format arguments"); |
257 | } |
258 | break; |
259 | |
260 | case FF_CHECKNL: |
261 | item = s = SvPV(sv, len); |
262 | itemsize = len; |
263 | if (itemsize > fieldsize) |
264 | itemsize = fieldsize; |
265 | send = chophere = s + itemsize; |
266 | while (s < send) { |
267 | if (*s & ~31) |
268 | gotsome = TRUE; |
269 | else if (*s == '\n') |
270 | break; |
271 | s++; |
272 | } |
273 | itemsize = s - item; |
274 | break; |
275 | |
276 | case FF_CHECKCHOP: |
277 | item = s = SvPV(sv, len); |
278 | itemsize = len; |
279 | if (itemsize <= fieldsize) { |
280 | send = chophere = s + itemsize; |
281 | while (s < send) { |
282 | if (*s == '\r') { |
283 | itemsize = s - item; |
284 | break; |
285 | } |
286 | if (*s++ & ~31) |
287 | gotsome = TRUE; |
288 | } |
289 | } |
290 | else { |
291 | itemsize = fieldsize; |
292 | send = chophere = s + itemsize; |
293 | while (s < send || (s == send && isSPACE(*s))) { |
294 | if (isSPACE(*s)) { |
295 | if (chopspace) |
296 | chophere = s; |
297 | if (*s == '\r') |
298 | break; |
299 | } |
300 | else { |
301 | if (*s & ~31) |
302 | gotsome = TRUE; |
303 | if (strchr(chopset, *s)) |
304 | chophere = s + 1; |
305 | } |
306 | s++; |
307 | } |
308 | itemsize = chophere - item; |
309 | } |
310 | break; |
311 | |
312 | case FF_SPACE: |
313 | arg = fieldsize - itemsize; |
314 | if (arg) { |
315 | fieldsize -= arg; |
316 | while (arg-- > 0) |
317 | *t++ = ' '; |
318 | } |
319 | break; |
320 | |
321 | case FF_HALFSPACE: |
322 | arg = fieldsize - itemsize; |
323 | if (arg) { |
324 | arg /= 2; |
325 | fieldsize -= arg; |
326 | while (arg-- > 0) |
327 | *t++ = ' '; |
328 | } |
329 | break; |
330 | |
331 | case FF_ITEM: |
332 | arg = itemsize; |
333 | s = item; |
334 | while (arg--) { |
335 | #if 'z' - 'a' != 25 |
336 | int ch = *t++ = *s++; |
337 | if (!iscntrl(ch)) |
338 | t[-1] = ' '; |
339 | #else |
340 | if ( !((*t++ = *s++) & ~31) ) |
341 | t[-1] = ' '; |
342 | #endif |
343 | |
344 | } |
345 | break; |
346 | |
347 | case FF_CHOP: |
348 | s = chophere; |
349 | if (chopspace) { |
350 | while (*s && isSPACE(*s)) |
351 | s++; |
352 | } |
353 | sv_chop(sv,s); |
354 | break; |
355 | |
356 | case FF_LINEGLOB: |
357 | item = s = SvPV(sv, len); |
358 | itemsize = len; |
359 | if (itemsize) { |
360 | gotsome = TRUE; |
361 | send = s + itemsize; |
362 | while (s < send) { |
363 | if (*s++ == '\n') { |
364 | if (s == send) |
365 | itemsize--; |
366 | else |
367 | lines++; |
368 | } |
369 | } |
370 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
371 | sv_catpvn(formtarget, item, itemsize); |
372 | SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1); |
373 | t = SvPVX(formtarget) + SvCUR(formtarget); |
374 | } |
375 | break; |
376 | |
377 | case FF_DECIMAL: |
378 | /* If the field is marked with ^ and the value is undefined, |
379 | blank it out. */ |
380 | arg = *fpc++; |
381 | if ((arg & 512) && !SvOK(sv)) { |
382 | arg = fieldsize; |
383 | while (arg--) |
384 | *t++ = ' '; |
385 | break; |
386 | } |
387 | gotsome = TRUE; |
388 | value = SvNV(sv); |
bbce6d69 |
389 | /* Formats aren't yet marked for locales, so assume "yes". */ |
36477c24 |
390 | SET_NUMERIC_LOCAL(); |
a0d0e21e |
391 | if (arg & 256) { |
392 | sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value); |
393 | } else { |
394 | sprintf(t, "%*.0f", (int) fieldsize, value); |
395 | } |
396 | t += fieldsize; |
397 | break; |
398 | |
399 | case FF_NEWLINE: |
400 | f++; |
401 | while (t-- > linemark && *t == ' ') ; |
402 | t++; |
403 | *t++ = '\n'; |
404 | break; |
405 | |
406 | case FF_BLANK: |
407 | arg = *fpc++; |
408 | if (gotsome) { |
409 | if (arg) { /* repeat until fields exhausted? */ |
410 | *t = '\0'; |
411 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
412 | lines += FmLINES(formtarget); |
413 | if (lines == 200) { |
414 | arg = t - linemark; |
415 | if (strnEQ(linemark, linemark - arg, arg)) |
416 | DIE("Runaway format"); |
417 | } |
418 | FmLINES(formtarget) = lines; |
419 | SP = ORIGMARK; |
420 | RETURNOP(cLISTOP->op_first); |
421 | } |
422 | } |
423 | else { |
424 | t = linemark; |
425 | lines--; |
426 | } |
427 | break; |
428 | |
429 | case FF_MORE: |
430 | if (itemsize) { |
431 | arg = fieldsize - itemsize; |
432 | if (arg) { |
433 | fieldsize -= arg; |
434 | while (arg-- > 0) |
435 | *t++ = ' '; |
436 | } |
437 | s = t - 3; |
438 | if (strnEQ(s," ",3)) { |
439 | while (s > SvPVX(formtarget) && isSPACE(s[-1])) |
440 | s--; |
441 | } |
442 | *s++ = '.'; |
443 | *s++ = '.'; |
444 | *s++ = '.'; |
445 | } |
446 | break; |
447 | |
448 | case FF_END: |
449 | *t = '\0'; |
450 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
451 | FmLINES(formtarget) += lines; |
452 | SP = ORIGMARK; |
453 | RETPUSHYES; |
454 | } |
455 | } |
456 | } |
457 | |
458 | PP(pp_grepstart) |
459 | { |
460 | dSP; |
461 | SV *src; |
462 | |
463 | if (stack_base + *markstack_ptr == sp) { |
464 | (void)POPMARK; |
465 | if (GIMME != G_ARRAY) |
466 | XPUSHs(&sv_no); |
467 | RETURNOP(op->op_next->op_next); |
468 | } |
469 | stack_sp = stack_base + *markstack_ptr + 1; |
470 | pp_pushmark(); /* push dst */ |
471 | pp_pushmark(); /* push src */ |
472 | ENTER; /* enter outer scope */ |
473 | |
474 | SAVETMPS; |
475 | SAVESPTR(GvSV(defgv)); |
476 | |
477 | ENTER; /* enter inner scope */ |
478 | SAVESPTR(curpm); |
479 | |
480 | src = stack_base[*markstack_ptr]; |
481 | SvTEMP_off(src); |
482 | GvSV(defgv) = src; |
483 | |
484 | PUTBACK; |
485 | if (op->op_type == OP_MAPSTART) |
486 | pp_pushmark(); /* push top */ |
487 | return ((LOGOP*)op->op_next)->op_other; |
488 | } |
489 | |
490 | PP(pp_mapstart) |
491 | { |
492 | DIE("panic: mapstart"); /* uses grepstart */ |
493 | } |
494 | |
495 | PP(pp_mapwhile) |
496 | { |
497 | dSP; |
498 | I32 diff = (sp - stack_base) - *markstack_ptr; |
499 | I32 count; |
500 | I32 shift; |
501 | SV** src; |
502 | SV** dst; |
503 | |
504 | ++markstack_ptr[-1]; |
505 | if (diff) { |
506 | if (diff > markstack_ptr[-1] - markstack_ptr[-2]) { |
507 | shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]); |
508 | count = (sp - stack_base) - markstack_ptr[-1] + 2; |
509 | |
510 | EXTEND(sp,shift); |
511 | src = sp; |
512 | dst = (sp += shift); |
513 | markstack_ptr[-1] += shift; |
514 | *markstack_ptr += shift; |
515 | while (--count) |
516 | *dst-- = *src--; |
517 | } |
518 | dst = stack_base + (markstack_ptr[-2] += diff) - 1; |
519 | ++diff; |
520 | while (--diff) |
521 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); |
522 | } |
523 | LEAVE; /* exit inner scope */ |
524 | |
525 | /* All done yet? */ |
526 | if (markstack_ptr[-1] > *markstack_ptr) { |
527 | I32 items; |
528 | |
529 | (void)POPMARK; /* pop top */ |
530 | LEAVE; /* exit outer scope */ |
531 | (void)POPMARK; /* pop src */ |
532 | items = --*markstack_ptr - markstack_ptr[-1]; |
533 | (void)POPMARK; /* pop dst */ |
534 | SP = stack_base + POPMARK; /* pop original mark */ |
535 | if (GIMME != G_ARRAY) { |
536 | dTARGET; |
537 | XPUSHi(items); |
538 | RETURN; |
539 | } |
540 | SP += items; |
541 | RETURN; |
542 | } |
543 | else { |
544 | SV *src; |
545 | |
546 | ENTER; /* enter inner scope */ |
547 | SAVESPTR(curpm); |
548 | |
549 | src = stack_base[markstack_ptr[-1]]; |
550 | SvTEMP_off(src); |
551 | GvSV(defgv) = src; |
552 | |
553 | RETURNOP(cLOGOP->op_other); |
554 | } |
555 | } |
556 | |
557 | |
558 | PP(pp_sort) |
559 | { |
560 | dSP; dMARK; dORIGMARK; |
561 | register SV **up; |
562 | SV **myorigmark = ORIGMARK; |
563 | register I32 max; |
564 | HV *stash; |
565 | GV *gv; |
566 | CV *cv; |
567 | I32 gimme = GIMME; |
568 | OP* nextop = op->op_next; |
569 | |
570 | if (gimme != G_ARRAY) { |
571 | SP = MARK; |
572 | RETPUSHUNDEF; |
573 | } |
574 | |
575 | if (op->op_flags & OPf_STACKED) { |
576 | ENTER; |
577 | if (op->op_flags & OPf_SPECIAL) { |
578 | OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */ |
579 | kid = kUNOP->op_first; /* pass rv2gv */ |
580 | kid = kUNOP->op_first; /* pass leave */ |
581 | sortcop = kid->op_next; |
582 | stash = curcop->cop_stash; |
583 | } |
584 | else { |
585 | cv = sv_2cv(*++MARK, &stash, &gv, 0); |
586 | if (!(cv && CvROOT(cv))) { |
587 | if (gv) { |
588 | SV *tmpstr = sv_newmortal(); |
e5cf08de |
589 | gv_efullname3(tmpstr, gv, Nullch); |
a0d0e21e |
590 | if (cv && CvXSUB(cv)) |
591 | DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr)); |
592 | DIE("Undefined sort subroutine \"%s\" called", |
593 | SvPVX(tmpstr)); |
594 | } |
595 | if (cv) { |
596 | if (CvXSUB(cv)) |
597 | DIE("Xsub called in sort"); |
598 | DIE("Undefined subroutine in sort"); |
599 | } |
600 | DIE("Not a CODE reference in sort"); |
601 | } |
602 | sortcop = CvSTART(cv); |
603 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
604 | CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL]; |
605 | |
606 | SAVESPTR(curpad); |
607 | curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
608 | } |
609 | } |
610 | else { |
611 | sortcop = Nullop; |
612 | stash = curcop->cop_stash; |
613 | } |
614 | |
615 | up = myorigmark + 1; |
616 | while (MARK < SP) { /* This may or may not shift down one here. */ |
617 | /*SUPPRESS 560*/ |
618 | if (*up = *++MARK) { /* Weed out nulls. */ |
9f8d30d5 |
619 | SvTEMP_off(*up); |
620 | if (!sortcop && !SvPOK(*up)) |
a0d0e21e |
621 | (void)sv_2pv(*up, &na); |
a0d0e21e |
622 | up++; |
623 | } |
624 | } |
625 | max = --up - myorigmark; |
626 | if (sortcop) { |
627 | if (max > 1) { |
628 | AV *oldstack; |
629 | CONTEXT *cx; |
630 | SV** newsp; |
1e422769 |
631 | bool oldmustcatch = mustcatch; |
a0d0e21e |
632 | |
633 | SAVETMPS; |
634 | SAVESPTR(op); |
635 | |
1ce6579f |
636 | oldstack = curstack; |
a0d0e21e |
637 | if (!sortstack) { |
638 | sortstack = newAV(); |
639 | AvREAL_off(sortstack); |
640 | av_extend(sortstack, 32); |
641 | } |
1e422769 |
642 | mustcatch = TRUE; |
1ce6579f |
643 | SWITCHSTACK(curstack, sortstack); |
a0d0e21e |
644 | if (sortstash != stash) { |
645 | firstgv = gv_fetchpv("a", TRUE, SVt_PV); |
646 | secondgv = gv_fetchpv("b", TRUE, SVt_PV); |
647 | sortstash = stash; |
648 | } |
649 | |
650 | SAVESPTR(GvSV(firstgv)); |
651 | SAVESPTR(GvSV(secondgv)); |
0a753a76 |
652 | PUSHBLOCK(cx, CXt_NULL, stack_base); |
a0d0e21e |
653 | sortcxix = cxstack_ix; |
654 | |
655 | qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv); |
656 | |
657 | POPBLOCK(cx,curpm); |
658 | SWITCHSTACK(sortstack, oldstack); |
1e422769 |
659 | mustcatch = oldmustcatch; |
a0d0e21e |
660 | } |
661 | LEAVE; |
662 | } |
663 | else { |
664 | if (max > 1) { |
665 | MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
bbce6d69 |
666 | qsort((char*)(ORIGMARK+1), max, sizeof(SV*), |
667 | (op->op_private & OPpLOCALE) ? sortcmp_locale : sortcmp); |
a0d0e21e |
668 | } |
669 | } |
670 | stack_sp = ORIGMARK + max; |
671 | return nextop; |
672 | } |
673 | |
674 | /* Range stuff. */ |
675 | |
676 | PP(pp_range) |
677 | { |
678 | if (GIMME == G_ARRAY) |
679 | return cCONDOP->op_true; |
680 | return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true; |
681 | } |
682 | |
683 | PP(pp_flip) |
684 | { |
685 | dSP; |
686 | |
687 | if (GIMME == G_ARRAY) { |
688 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
689 | } |
690 | else { |
691 | dTOPss; |
692 | SV *targ = PAD_SV(op->op_targ); |
693 | |
694 | if ((op->op_private & OPpFLIP_LINENUM) |
695 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
696 | : SvTRUE(sv) ) { |
697 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
698 | if (op->op_flags & OPf_SPECIAL) { |
699 | sv_setiv(targ, 1); |
700 | RETURN; |
701 | } |
702 | else { |
703 | sv_setiv(targ, 0); |
704 | sp--; |
705 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
706 | } |
707 | } |
708 | sv_setpv(TARG, ""); |
709 | SETs(targ); |
710 | RETURN; |
711 | } |
712 | } |
713 | |
714 | PP(pp_flop) |
715 | { |
716 | dSP; |
717 | |
718 | if (GIMME == G_ARRAY) { |
719 | dPOPPOPssrl; |
720 | register I32 i; |
721 | register SV *sv; |
722 | I32 max; |
723 | |
4633a7c4 |
724 | if (SvNIOKp(left) || !SvPOKp(left) || |
bbce6d69 |
725 | (looks_like_number(left) && *SvPVX(left) != '0') ) |
726 | { |
a0d0e21e |
727 | i = SvIV(left); |
728 | max = SvIV(right); |
bbce6d69 |
729 | if (max >= i) { |
730 | EXTEND_MORTAL(max - i + 1); |
a0d0e21e |
731 | EXTEND(SP, max - i + 1); |
bbce6d69 |
732 | } |
a0d0e21e |
733 | while (i <= max) { |
bbce6d69 |
734 | sv = sv_2mortal(newSViv(i++)); |
a0d0e21e |
735 | PUSHs(sv); |
736 | } |
737 | } |
738 | else { |
739 | SV *final = sv_mortalcopy(right); |
740 | STRLEN len; |
741 | char *tmps = SvPV(final, len); |
742 | |
743 | sv = sv_mortalcopy(left); |
4633a7c4 |
744 | while (!SvNIOKp(sv) && SvCUR(sv) <= len && |
a0d0e21e |
745 | strNE(SvPVX(sv),tmps) ) { |
746 | XPUSHs(sv); |
747 | sv = sv_2mortal(newSVsv(sv)); |
748 | sv_inc(sv); |
749 | } |
750 | if (strEQ(SvPVX(sv),tmps)) |
751 | XPUSHs(sv); |
752 | } |
753 | } |
754 | else { |
755 | dTOPss; |
756 | SV *targ = PAD_SV(cUNOP->op_first->op_targ); |
757 | sv_inc(targ); |
758 | if ((op->op_private & OPpFLIP_LINENUM) |
759 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
760 | : SvTRUE(sv) ) { |
761 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
762 | sv_catpv(targ, "E0"); |
763 | } |
764 | SETs(targ); |
765 | } |
766 | |
767 | RETURN; |
768 | } |
769 | |
770 | /* Control. */ |
771 | |
772 | static I32 |
773 | dopoptolabel(label) |
774 | char *label; |
775 | { |
776 | register I32 i; |
777 | register CONTEXT *cx; |
778 | |
779 | for (i = cxstack_ix; i >= 0; i--) { |
780 | cx = &cxstack[i]; |
781 | switch (cx->cx_type) { |
782 | case CXt_SUBST: |
783 | if (dowarn) |
784 | warn("Exiting substitution via %s", op_name[op->op_type]); |
785 | break; |
786 | case CXt_SUB: |
787 | if (dowarn) |
788 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
789 | break; |
790 | case CXt_EVAL: |
791 | if (dowarn) |
792 | warn("Exiting eval via %s", op_name[op->op_type]); |
793 | break; |
0a753a76 |
794 | case CXt_NULL: |
795 | if (dowarn) |
796 | warn("Exiting pseudo-block via %s", op_name[op->op_type]); |
797 | return -1; |
a0d0e21e |
798 | case CXt_LOOP: |
799 | if (!cx->blk_loop.label || |
800 | strNE(label, cx->blk_loop.label) ) { |
801 | DEBUG_l(deb("(Skipping label #%d %s)\n", |
802 | i, cx->blk_loop.label)); |
803 | continue; |
804 | } |
805 | DEBUG_l( deb("(Found label #%d %s)\n", i, label)); |
806 | return i; |
807 | } |
808 | } |
809 | return i; |
810 | } |
811 | |
e50aee73 |
812 | I32 |
813 | dowantarray() |
814 | { |
815 | I32 cxix; |
816 | |
817 | cxix = dopoptosub(cxstack_ix); |
818 | if (cxix < 0) |
819 | return G_SCALAR; |
820 | |
821 | if (cxstack[cxix].blk_gimme == G_ARRAY) |
822 | return G_ARRAY; |
823 | else |
824 | return G_SCALAR; |
825 | } |
826 | |
a0d0e21e |
827 | static I32 |
828 | dopoptosub(startingblock) |
829 | I32 startingblock; |
830 | { |
831 | I32 i; |
832 | register CONTEXT *cx; |
833 | for (i = startingblock; i >= 0; i--) { |
834 | cx = &cxstack[i]; |
835 | switch (cx->cx_type) { |
836 | default: |
837 | continue; |
838 | case CXt_EVAL: |
839 | case CXt_SUB: |
840 | DEBUG_l( deb("(Found sub #%d)\n", i)); |
841 | return i; |
842 | } |
843 | } |
844 | return i; |
845 | } |
846 | |
847 | static I32 |
848 | dopoptoeval(startingblock) |
849 | I32 startingblock; |
850 | { |
851 | I32 i; |
852 | register CONTEXT *cx; |
853 | for (i = startingblock; i >= 0; i--) { |
854 | cx = &cxstack[i]; |
855 | switch (cx->cx_type) { |
856 | default: |
857 | continue; |
858 | case CXt_EVAL: |
859 | DEBUG_l( deb("(Found eval #%d)\n", i)); |
860 | return i; |
861 | } |
862 | } |
863 | return i; |
864 | } |
865 | |
866 | static I32 |
867 | dopoptoloop(startingblock) |
868 | I32 startingblock; |
869 | { |
870 | I32 i; |
871 | register CONTEXT *cx; |
872 | for (i = startingblock; i >= 0; i--) { |
873 | cx = &cxstack[i]; |
874 | switch (cx->cx_type) { |
875 | case CXt_SUBST: |
876 | if (dowarn) |
5f05dabc |
877 | warn("Exiting substitution via %s", op_name[op->op_type]); |
a0d0e21e |
878 | break; |
879 | case CXt_SUB: |
880 | if (dowarn) |
881 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
882 | break; |
883 | case CXt_EVAL: |
884 | if (dowarn) |
885 | warn("Exiting eval via %s", op_name[op->op_type]); |
886 | break; |
0a753a76 |
887 | case CXt_NULL: |
888 | if (dowarn) |
889 | warn("Exiting pseudo-block via %s", op_name[op->op_type]); |
890 | return -1; |
a0d0e21e |
891 | case CXt_LOOP: |
892 | DEBUG_l( deb("(Found loop #%d)\n", i)); |
893 | return i; |
894 | } |
895 | } |
896 | return i; |
897 | } |
898 | |
899 | void |
900 | dounwind(cxix) |
901 | I32 cxix; |
902 | { |
903 | register CONTEXT *cx; |
904 | SV **newsp; |
905 | I32 optype; |
906 | |
907 | while (cxstack_ix > cxix) { |
908 | cx = &cxstack[cxstack_ix--]; |
760ac839 |
909 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", (long) cxstack_ix+1, |
a0d0e21e |
910 | block_type[cx->cx_type])); |
911 | /* Note: we don't need to restore the base context info till the end. */ |
912 | switch (cx->cx_type) { |
913 | case CXt_SUB: |
914 | POPSUB(cx); |
915 | break; |
916 | case CXt_EVAL: |
917 | POPEVAL(cx); |
918 | break; |
919 | case CXt_LOOP: |
920 | POPLOOP(cx); |
921 | break; |
0a753a76 |
922 | case CXt_NULL: |
a0d0e21e |
923 | case CXt_SUBST: |
924 | break; |
925 | } |
926 | } |
927 | } |
928 | |
a0d0e21e |
929 | OP * |
930 | die_where(message) |
931 | char *message; |
932 | { |
933 | if (in_eval) { |
934 | I32 cxix; |
935 | register CONTEXT *cx; |
936 | I32 gimme; |
937 | SV **newsp; |
938 | |
4633a7c4 |
939 | if (in_eval & 4) { |
940 | SV **svp; |
941 | STRLEN klen = strlen(message); |
942 | |
943 | svp = hv_fetch(GvHV(errgv), message, klen, TRUE); |
944 | if (svp) { |
945 | if (!SvIOK(*svp)) { |
946 | static char prefix[] = "\t(in cleanup) "; |
947 | sv_upgrade(*svp, SVt_IV); |
948 | (void)SvIOK_only(*svp); |
949 | SvGROW(GvSV(errgv), SvCUR(GvSV(errgv))+sizeof(prefix)+klen); |
950 | sv_catpvn(GvSV(errgv), prefix, sizeof(prefix)-1); |
951 | sv_catpvn(GvSV(errgv), message, klen); |
952 | } |
953 | sv_inc(*svp); |
954 | } |
955 | } |
956 | else |
c07a80fd |
957 | sv_setpv(GvSV(errgv), message); |
4633a7c4 |
958 | |
a0d0e21e |
959 | cxix = dopoptoeval(cxstack_ix); |
960 | if (cxix >= 0) { |
961 | I32 optype; |
962 | |
963 | if (cxix < cxstack_ix) |
964 | dounwind(cxix); |
965 | |
966 | POPBLOCK(cx,curpm); |
967 | if (cx->cx_type != CXt_EVAL) { |
760ac839 |
968 | PerlIO_printf(PerlIO_stderr(), "panic: die %s", message); |
a0d0e21e |
969 | my_exit(1); |
970 | } |
971 | POPEVAL(cx); |
972 | |
973 | if (gimme == G_SCALAR) |
974 | *++newsp = &sv_undef; |
975 | stack_sp = newsp; |
976 | |
977 | LEAVE; |
748a9306 |
978 | |
a0d0e21e |
979 | if (optype == OP_REQUIRE) |
4633a7c4 |
980 | DIE("%s", SvPVx(GvSV(errgv), na)); |
a0d0e21e |
981 | return pop_return(); |
982 | } |
983 | } |
760ac839 |
984 | PerlIO_printf(PerlIO_stderr(), "%s",message); |
985 | PerlIO_flush(PerlIO_stderr()); |
f86702cc |
986 | my_failure_exit(); |
987 | /* NOTREACHED */ |
a0d0e21e |
988 | return 0; |
989 | } |
990 | |
991 | PP(pp_xor) |
992 | { |
993 | dSP; dPOPTOPssrl; |
994 | if (SvTRUE(left) != SvTRUE(right)) |
995 | RETSETYES; |
996 | else |
997 | RETSETNO; |
998 | } |
999 | |
1000 | PP(pp_andassign) |
1001 | { |
1002 | dSP; |
1003 | if (!SvTRUE(TOPs)) |
1004 | RETURN; |
1005 | else |
1006 | RETURNOP(cLOGOP->op_other); |
1007 | } |
1008 | |
1009 | PP(pp_orassign) |
1010 | { |
1011 | dSP; |
1012 | if (SvTRUE(TOPs)) |
1013 | RETURN; |
1014 | else |
1015 | RETURNOP(cLOGOP->op_other); |
1016 | } |
1017 | |
1018 | #ifdef DEPRECATED |
1019 | PP(pp_entersubr) |
1020 | { |
1021 | dSP; |
1022 | SV** mark = (stack_base + *markstack_ptr + 1); |
1023 | SV* cv = *mark; |
1024 | while (mark < sp) { /* emulate old interface */ |
1025 | *mark = mark[1]; |
1026 | mark++; |
1027 | } |
1028 | *sp = cv; |
1029 | return pp_entersub(); |
1030 | } |
1031 | #endif |
1032 | |
1033 | PP(pp_caller) |
1034 | { |
1035 | dSP; |
1036 | register I32 cxix = dopoptosub(cxstack_ix); |
1037 | register CONTEXT *cx; |
1038 | I32 dbcxix; |
1039 | SV *sv; |
1040 | I32 count = 0; |
1041 | |
1042 | if (MAXARG) |
1043 | count = POPi; |
1044 | EXTEND(SP, 6); |
1045 | for (;;) { |
1046 | if (cxix < 0) { |
1047 | if (GIMME != G_ARRAY) |
1048 | RETPUSHUNDEF; |
1049 | RETURN; |
1050 | } |
1051 | if (DBsub && cxix >= 0 && |
1052 | cxstack[cxix].blk_sub.cv == GvCV(DBsub)) |
1053 | count++; |
1054 | if (!count--) |
1055 | break; |
1056 | cxix = dopoptosub(cxix - 1); |
1057 | } |
1058 | cx = &cxstack[cxix]; |
06a5b730 |
1059 | if (cxstack[cxix].cx_type == CXt_SUB) { |
1060 | dbcxix = dopoptosub(cxix - 1); |
1061 | /* We expect that cxstack[dbcxix] is CXt_SUB, anyway, the |
1062 | field below is defined for any cx. */ |
1063 | if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub)) |
1064 | cx = &cxstack[dbcxix]; |
1065 | } |
1066 | |
a0d0e21e |
1067 | if (GIMME != G_ARRAY) { |
1068 | dTARGET; |
1069 | |
1070 | sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash)); |
1071 | PUSHs(TARG); |
1072 | RETURN; |
1073 | } |
a0d0e21e |
1074 | |
1075 | PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0))); |
1076 | PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0))); |
1077 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line))); |
1078 | if (!MAXARG) |
1079 | RETURN; |
06a5b730 |
1080 | if (cx->cx_type == CXt_SUB) { /* So is cxstack[dbcxix]. */ |
a0d0e21e |
1081 | sv = NEWSV(49, 0); |
e5cf08de |
1082 | gv_efullname3(sv, CvGV(cxstack[cxix].blk_sub.cv), Nullch); |
a0d0e21e |
1083 | PUSHs(sv_2mortal(sv)); |
1084 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
1085 | } |
1086 | else { |
1087 | PUSHs(sv_2mortal(newSVpv("(eval)",0))); |
1088 | PUSHs(sv_2mortal(newSViv(0))); |
1089 | } |
1090 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_gimme))); |
4633a7c4 |
1091 | if (cx->cx_type == CXt_EVAL) { |
06a5b730 |
1092 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 |
1093 | PUSHs(cx->blk_eval.cur_text); |
06a5b730 |
1094 | PUSHs(&sv_no); |
1095 | } |
1096 | else if (cx->blk_eval.old_name) { /* Try blocks have old_name == 0. */ |
1097 | /* Require, put the name. */ |
1098 | PUSHs(sv_2mortal(newSVpv(cx->blk_eval.old_name, 0))); |
1099 | PUSHs(&sv_yes); |
1100 | } |
4633a7c4 |
1101 | } |
1102 | else if (cx->cx_type == CXt_SUB && |
1103 | cx->blk_sub.hasargs && |
1104 | curcop->cop_stash == debstash) |
1105 | { |
a0d0e21e |
1106 | AV *ary = cx->blk_sub.argarray; |
1107 | int off = AvARRAY(ary) - AvALLOC(ary); |
1108 | |
1109 | if (!dbargs) { |
1110 | GV* tmpgv; |
1111 | dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE, |
1112 | SVt_PVAV))); |
a5f75d66 |
1113 | GvMULTI_on(tmpgv); |
a0d0e21e |
1114 | AvREAL_off(dbargs); /* XXX Should be REIFY */ |
1115 | } |
1116 | |
1117 | if (AvMAX(dbargs) < AvFILL(ary) + off) |
1118 | av_extend(dbargs, AvFILL(ary) + off); |
1119 | Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*); |
1120 | AvFILL(dbargs) = AvFILL(ary) + off; |
1121 | } |
1122 | RETURN; |
1123 | } |
1124 | |
1125 | static int |
1126 | sortcv(a, b) |
1127 | const void *a; |
1128 | const void *b; |
1129 | { |
1130 | SV **str1 = (SV **) a; |
1131 | SV **str2 = (SV **) b; |
748a9306 |
1132 | I32 oldsaveix = savestack_ix; |
a0d0e21e |
1133 | I32 oldscopeix = scopestack_ix; |
1134 | I32 result; |
1135 | GvSV(firstgv) = *str1; |
1136 | GvSV(secondgv) = *str2; |
1137 | stack_sp = stack_base; |
1138 | op = sortcop; |
a6c477ed |
1139 | runops(); |
a0d0e21e |
1140 | if (stack_sp != stack_base + 1) |
1141 | croak("Sort subroutine didn't return single value"); |
748a9306 |
1142 | if (!SvNIOKp(*stack_sp)) |
a0d0e21e |
1143 | croak("Sort subroutine didn't return a numeric value"); |
1144 | result = SvIV(*stack_sp); |
1145 | while (scopestack_ix > oldscopeix) { |
1146 | LEAVE; |
1147 | } |
748a9306 |
1148 | leave_scope(oldsaveix); |
a0d0e21e |
1149 | return result; |
1150 | } |
1151 | |
1152 | static int |
1153 | sortcmp(a, b) |
1154 | const void *a; |
1155 | const void *b; |
1156 | { |
bbce6d69 |
1157 | return sv_cmp(*(SV **)a, *(SV **)b); |
1158 | } |
e5cf08de |
1159 | |
bbce6d69 |
1160 | static int |
1161 | sortcmp_locale(a, b) |
1162 | const void *a; |
1163 | const void *b; |
1164 | { |
1165 | return sv_cmp_locale(*(SV **)a, *(SV **)b); |
a0d0e21e |
1166 | } |
1167 | |
1168 | PP(pp_reset) |
1169 | { |
1170 | dSP; |
1171 | char *tmps; |
1172 | |
1173 | if (MAXARG < 1) |
1174 | tmps = ""; |
1175 | else |
1176 | tmps = POPp; |
1177 | sv_reset(tmps, curcop->cop_stash); |
1178 | PUSHs(&sv_yes); |
1179 | RETURN; |
1180 | } |
1181 | |
1182 | PP(pp_lineseq) |
1183 | { |
1184 | return NORMAL; |
1185 | } |
1186 | |
1187 | PP(pp_dbstate) |
1188 | { |
1189 | curcop = (COP*)op; |
1190 | TAINT_NOT; /* Each statement is presumed innocent */ |
1191 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
1192 | FREETMPS; |
1193 | |
1194 | if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace)) |
1195 | { |
1196 | SV **sp; |
1197 | register CV *cv; |
1198 | register CONTEXT *cx; |
748a9306 |
1199 | I32 gimme = G_ARRAY; |
a0d0e21e |
1200 | I32 hasargs; |
1201 | GV *gv; |
1202 | |
a0d0e21e |
1203 | gv = DBgv; |
1204 | cv = GvCV(gv); |
a0d0e21e |
1205 | if (!cv) |
1206 | DIE("No DB::DB routine defined"); |
1207 | |
06a5b730 |
1208 | if (CvDEPTH(cv) >= 1 && !(debug & (1<<30))) /* don't do recursive DB::DB call */ |
a0d0e21e |
1209 | return NORMAL; |
748a9306 |
1210 | |
4633a7c4 |
1211 | ENTER; |
1212 | SAVETMPS; |
1213 | |
748a9306 |
1214 | SAVEI32(debug); |
55497cff |
1215 | SAVESTACK_POS(); |
748a9306 |
1216 | debug = 0; |
1217 | hasargs = 0; |
1218 | sp = stack_sp; |
1219 | |
a0d0e21e |
1220 | push_return(op->op_next); |
748a9306 |
1221 | PUSHBLOCK(cx, CXt_SUB, sp); |
a0d0e21e |
1222 | PUSHSUB(cx); |
1223 | CvDEPTH(cv)++; |
1224 | (void)SvREFCNT_inc(cv); |
1225 | SAVESPTR(curpad); |
1226 | curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE)); |
1227 | RETURNOP(CvSTART(cv)); |
1228 | } |
1229 | else |
1230 | return NORMAL; |
1231 | } |
1232 | |
1233 | PP(pp_scope) |
1234 | { |
1235 | return NORMAL; |
1236 | } |
1237 | |
1238 | PP(pp_enteriter) |
1239 | { |
1240 | dSP; dMARK; |
1241 | register CONTEXT *cx; |
1242 | I32 gimme = GIMME; |
1243 | SV **svp; |
1244 | |
4633a7c4 |
1245 | ENTER; |
1246 | SAVETMPS; |
1247 | |
a0d0e21e |
1248 | if (op->op_targ) |
1249 | svp = &curpad[op->op_targ]; /* "my" variable */ |
1250 | else |
1251 | svp = &GvSV((GV*)POPs); /* symbol table variable */ |
1252 | |
4633a7c4 |
1253 | SAVESPTR(*svp); |
1254 | |
a0d0e21e |
1255 | ENTER; |
1256 | |
1257 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1258 | PUSHLOOP(cx, svp, MARK); |
44a8e56a |
1259 | if (op->op_flags & OPf_STACKED) |
1260 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
4633a7c4 |
1261 | else { |
1ce6579f |
1262 | cx->blk_loop.iterary = curstack; |
1263 | AvFILL(curstack) = sp - stack_base; |
4633a7c4 |
1264 | cx->blk_loop.iterix = MARK - stack_base; |
1265 | } |
a0d0e21e |
1266 | |
1267 | RETURN; |
1268 | } |
1269 | |
1270 | PP(pp_enterloop) |
1271 | { |
1272 | dSP; |
1273 | register CONTEXT *cx; |
1274 | I32 gimme = GIMME; |
1275 | |
1276 | ENTER; |
1277 | SAVETMPS; |
1278 | ENTER; |
1279 | |
1280 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1281 | PUSHLOOP(cx, 0, SP); |
1282 | |
1283 | RETURN; |
1284 | } |
1285 | |
1286 | PP(pp_leaveloop) |
1287 | { |
1288 | dSP; |
1289 | register CONTEXT *cx; |
f86702cc |
1290 | struct block_loop cxloop; |
a0d0e21e |
1291 | I32 gimme; |
1292 | SV **newsp; |
1293 | PMOP *newpm; |
1294 | SV **mark; |
1295 | |
1296 | POPBLOCK(cx,newpm); |
4fdae800 |
1297 | mark = newsp; |
f86702cc |
1298 | POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */ |
1299 | |
a0d0e21e |
1300 | if (gimme == G_SCALAR) { |
1301 | if (op->op_private & OPpLEAVE_VOID) |
1302 | ; |
1303 | else { |
1304 | if (mark < SP) |
1305 | *++newsp = sv_mortalcopy(*SP); |
1306 | else |
1307 | *++newsp = &sv_undef; |
1308 | } |
1309 | } |
1310 | else { |
1311 | while (mark < SP) |
1312 | *++newsp = sv_mortalcopy(*++mark); |
1313 | } |
f86702cc |
1314 | SP = newsp; |
1315 | PUTBACK; |
1316 | |
1317 | POPLOOP2(); /* Stack values are safe: release loop vars ... */ |
1318 | curpm = newpm; /* ... and pop $1 et al */ |
1319 | |
a0d0e21e |
1320 | LEAVE; |
1321 | LEAVE; |
1322 | |
f86702cc |
1323 | return NORMAL; |
a0d0e21e |
1324 | } |
1325 | |
1326 | PP(pp_return) |
1327 | { |
1328 | dSP; dMARK; |
1329 | I32 cxix; |
1330 | register CONTEXT *cx; |
f86702cc |
1331 | struct block_sub cxsub; |
1332 | bool popsub2 = FALSE; |
a0d0e21e |
1333 | I32 gimme; |
1334 | SV **newsp; |
1335 | PMOP *newpm; |
1336 | I32 optype = 0; |
1337 | |
1ce6579f |
1338 | if (curstack == sortstack) { |
a0d0e21e |
1339 | if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) < sortcxix) { |
16d20bd9 |
1340 | if (cxstack_ix > sortcxix) |
1341 | dounwind(sortcxix); |
1ce6579f |
1342 | AvARRAY(curstack)[1] = *SP; |
a0d0e21e |
1343 | stack_sp = stack_base + 1; |
1344 | return 0; |
1345 | } |
1346 | } |
1347 | |
1348 | cxix = dopoptosub(cxstack_ix); |
1349 | if (cxix < 0) |
1350 | DIE("Can't return outside a subroutine"); |
1351 | if (cxix < cxstack_ix) |
1352 | dounwind(cxix); |
1353 | |
1354 | POPBLOCK(cx,newpm); |
1355 | switch (cx->cx_type) { |
1356 | case CXt_SUB: |
f86702cc |
1357 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1358 | popsub2 = TRUE; |
a0d0e21e |
1359 | break; |
1360 | case CXt_EVAL: |
1361 | POPEVAL(cx); |
748a9306 |
1362 | if (optype == OP_REQUIRE && |
1363 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) |
1364 | { |
1365 | char *name = cx->blk_eval.old_name; |
1366 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
1367 | DIE("%s did not return a true value", name); |
1368 | } |
a0d0e21e |
1369 | break; |
1370 | default: |
1371 | DIE("panic: return"); |
1372 | break; |
1373 | } |
1374 | |
1375 | if (gimme == G_SCALAR) { |
1376 | if (MARK < SP) |
f86702cc |
1377 | *++newsp = (popsub2 && SvTEMP(*SP)) |
1378 | ? *SP : sv_mortalcopy(*SP); |
a0d0e21e |
1379 | else |
1380 | *++newsp = &sv_undef; |
a0d0e21e |
1381 | } |
1382 | else { |
f86702cc |
1383 | while (++MARK <= SP) |
1384 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
1385 | ? *MARK : sv_mortalcopy(*MARK); |
a0d0e21e |
1386 | } |
a0d0e21e |
1387 | stack_sp = newsp; |
1388 | |
f86702cc |
1389 | /* Stack values are safe: */ |
1390 | if (popsub2) { |
1391 | POPSUB2(); /* release CV and @_ ... */ |
1392 | } |
1393 | curpm = newpm; /* ... and pop $1 et al */ |
1394 | |
a0d0e21e |
1395 | LEAVE; |
1396 | return pop_return(); |
1397 | } |
1398 | |
1399 | PP(pp_last) |
1400 | { |
1401 | dSP; |
1402 | I32 cxix; |
1403 | register CONTEXT *cx; |
f86702cc |
1404 | struct block_loop cxloop; |
1405 | struct block_sub cxsub; |
1406 | I32 pop2 = 0; |
a0d0e21e |
1407 | I32 gimme; |
1408 | I32 optype; |
1409 | OP *nextop; |
1410 | SV **newsp; |
1411 | PMOP *newpm; |
1412 | SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
1413 | |
1414 | if (op->op_flags & OPf_SPECIAL) { |
1415 | cxix = dopoptoloop(cxstack_ix); |
1416 | if (cxix < 0) |
1417 | DIE("Can't \"last\" outside a block"); |
1418 | } |
1419 | else { |
1420 | cxix = dopoptolabel(cPVOP->op_pv); |
1421 | if (cxix < 0) |
1422 | DIE("Label not found for \"last %s\"", cPVOP->op_pv); |
1423 | } |
1424 | if (cxix < cxstack_ix) |
1425 | dounwind(cxix); |
1426 | |
1427 | POPBLOCK(cx,newpm); |
1428 | switch (cx->cx_type) { |
1429 | case CXt_LOOP: |
f86702cc |
1430 | POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */ |
1431 | pop2 = CXt_LOOP; |
4fdae800 |
1432 | nextop = cxloop.last_op->op_next; |
a0d0e21e |
1433 | break; |
f86702cc |
1434 | case CXt_SUB: |
1435 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1436 | pop2 = CXt_SUB; |
a0d0e21e |
1437 | nextop = pop_return(); |
1438 | break; |
f86702cc |
1439 | case CXt_EVAL: |
1440 | POPEVAL(cx); |
a0d0e21e |
1441 | nextop = pop_return(); |
1442 | break; |
1443 | default: |
1444 | DIE("panic: last"); |
1445 | break; |
1446 | } |
1447 | |
1448 | if (gimme == G_SCALAR) { |
f86702cc |
1449 | if (MARK < SP) |
1450 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) |
1451 | ? *SP : sv_mortalcopy(*SP); |
a0d0e21e |
1452 | else |
1453 | *++newsp = &sv_undef; |
1454 | } |
1455 | else { |
f86702cc |
1456 | while (++MARK <= SP) |
1457 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
1458 | ? *MARK : sv_mortalcopy(*MARK); |
1459 | } |
1460 | SP = newsp; |
1461 | PUTBACK; |
1462 | |
1463 | /* Stack values are safe: */ |
1464 | switch (pop2) { |
1465 | case CXt_LOOP: |
1466 | POPLOOP2(); /* release loop vars ... */ |
4fdae800 |
1467 | LEAVE; |
f86702cc |
1468 | break; |
1469 | case CXt_SUB: |
1470 | POPSUB2(); /* release CV and @_ ... */ |
1471 | break; |
a0d0e21e |
1472 | } |
f86702cc |
1473 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1474 | |
1475 | LEAVE; |
f86702cc |
1476 | return nextop; |
a0d0e21e |
1477 | } |
1478 | |
1479 | PP(pp_next) |
1480 | { |
1481 | I32 cxix; |
1482 | register CONTEXT *cx; |
1483 | I32 oldsave; |
1484 | |
1485 | if (op->op_flags & OPf_SPECIAL) { |
1486 | cxix = dopoptoloop(cxstack_ix); |
1487 | if (cxix < 0) |
1488 | DIE("Can't \"next\" outside a block"); |
1489 | } |
1490 | else { |
1491 | cxix = dopoptolabel(cPVOP->op_pv); |
1492 | if (cxix < 0) |
1493 | DIE("Label not found for \"next %s\"", cPVOP->op_pv); |
1494 | } |
1495 | if (cxix < cxstack_ix) |
1496 | dounwind(cxix); |
1497 | |
1498 | TOPBLOCK(cx); |
1499 | oldsave = scopestack[scopestack_ix - 1]; |
1500 | LEAVE_SCOPE(oldsave); |
1501 | return cx->blk_loop.next_op; |
1502 | } |
1503 | |
1504 | PP(pp_redo) |
1505 | { |
1506 | I32 cxix; |
1507 | register CONTEXT *cx; |
1508 | I32 oldsave; |
1509 | |
1510 | if (op->op_flags & OPf_SPECIAL) { |
1511 | cxix = dopoptoloop(cxstack_ix); |
1512 | if (cxix < 0) |
1513 | DIE("Can't \"redo\" outside a block"); |
1514 | } |
1515 | else { |
1516 | cxix = dopoptolabel(cPVOP->op_pv); |
1517 | if (cxix < 0) |
1518 | DIE("Label not found for \"redo %s\"", cPVOP->op_pv); |
1519 | } |
1520 | if (cxix < cxstack_ix) |
1521 | dounwind(cxix); |
1522 | |
1523 | TOPBLOCK(cx); |
1524 | oldsave = scopestack[scopestack_ix - 1]; |
1525 | LEAVE_SCOPE(oldsave); |
1526 | return cx->blk_loop.redo_op; |
1527 | } |
1528 | |
1529 | static OP* lastgotoprobe; |
1530 | |
1531 | static OP * |
1532 | dofindlabel(op,label,opstack) |
1533 | OP *op; |
1534 | char *label; |
1535 | OP **opstack; |
1536 | { |
1537 | OP *kid; |
1538 | OP **ops = opstack; |
1539 | |
1540 | if (op->op_type == OP_LEAVE || |
1541 | op->op_type == OP_SCOPE || |
1542 | op->op_type == OP_LEAVELOOP || |
1543 | op->op_type == OP_LEAVETRY) |
1544 | *ops++ = cUNOP->op_first; |
1545 | *ops = 0; |
1546 | if (op->op_flags & OPf_KIDS) { |
1547 | /* First try all the kids at this level, since that's likeliest. */ |
1548 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1549 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
1550 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) |
1551 | return kid; |
1552 | } |
1553 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1554 | if (kid == lastgotoprobe) |
1555 | continue; |
1556 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
1557 | if (ops > opstack && |
1558 | (ops[-1]->op_type == OP_NEXTSTATE || |
1559 | ops[-1]->op_type == OP_DBSTATE)) |
1560 | *ops = kid; |
1561 | else |
1562 | *ops++ = kid; |
1563 | } |
1564 | if (op = dofindlabel(kid,label,ops)) |
1565 | return op; |
1566 | } |
1567 | } |
1568 | *ops = 0; |
1569 | return 0; |
1570 | } |
1571 | |
1572 | PP(pp_dump) |
1573 | { |
1574 | return pp_goto(ARGS); |
1575 | /*NOTREACHED*/ |
1576 | } |
1577 | |
1578 | PP(pp_goto) |
1579 | { |
1580 | dSP; |
1581 | OP *retop = 0; |
1582 | I32 ix; |
1583 | register CONTEXT *cx; |
1584 | OP *enterops[64]; |
1585 | char *label; |
1586 | int do_dump = (op->op_type == OP_DUMP); |
1587 | |
1588 | label = 0; |
1589 | if (op->op_flags & OPf_STACKED) { |
1590 | SV *sv = POPs; |
1591 | |
1592 | /* This egregious kludge implements goto &subroutine */ |
1593 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { |
1594 | I32 cxix; |
1595 | register CONTEXT *cx; |
1596 | CV* cv = (CV*)SvRV(sv); |
1597 | SV** mark; |
1598 | I32 items = 0; |
1599 | I32 oldsave; |
1600 | |
4aa0a1f7 |
1601 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1602 | if (CvGV(cv)) { |
1603 | SV *tmpstr = sv_newmortal(); |
e5cf08de |
1604 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
4aa0a1f7 |
1605 | DIE("Goto undefined subroutine &%s",SvPVX(tmpstr)); |
1606 | } |
1607 | DIE("Goto undefined subroutine"); |
1608 | } |
1609 | |
a0d0e21e |
1610 | /* First do some returnish stuff. */ |
1611 | cxix = dopoptosub(cxstack_ix); |
1612 | if (cxix < 0) |
1613 | DIE("Can't goto subroutine outside a subroutine"); |
1614 | if (cxix < cxstack_ix) |
1615 | dounwind(cxix); |
1616 | TOPBLOCK(cx); |
1617 | mark = stack_sp; |
1618 | if (cx->blk_sub.hasargs) { /* put @_ back onto stack */ |
1619 | AV* av = cx->blk_sub.argarray; |
1620 | |
1621 | items = AvFILL(av) + 1; |
1ce6579f |
1622 | stack_sp++; |
1623 | EXTEND(stack_sp, items); /* @_ could have been extended. */ |
1624 | Copy(AvARRAY(av), stack_sp, items, SV*); |
a0d0e21e |
1625 | stack_sp += items; |
2c05e328 |
1626 | SvREFCNT_dec(GvAV(defgv)); |
a0d0e21e |
1627 | GvAV(defgv) = cx->blk_sub.savearray; |
a0d0e21e |
1628 | AvREAL_off(av); |
4633a7c4 |
1629 | av_clear(av); |
a0d0e21e |
1630 | } |
1631 | if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
1632 | SvREFCNT_dec(cx->blk_sub.cv); |
1633 | oldsave = scopestack[scopestack_ix - 1]; |
1634 | LEAVE_SCOPE(oldsave); |
1635 | |
1636 | /* Now do some callish stuff. */ |
1637 | SAVETMPS; |
1638 | if (CvXSUB(cv)) { |
1639 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1640 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1641 | while (sp > mark) { |
1642 | sp[1] = sp[0]; |
1643 | sp--; |
1644 | } |
ecfc5424 |
1645 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1646 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1647 | mark - stack_base + 1, |
1648 | items); |
a0d0e21e |
1649 | sp = stack_base + items; |
1650 | } |
1651 | else { |
1ce6579f |
1652 | stack_sp--; /* There is no cv arg. */ |
a0d0e21e |
1653 | (void)(*CvXSUB(cv))(cv); |
1654 | } |
1655 | LEAVE; |
1656 | return pop_return(); |
1657 | } |
1658 | else { |
1659 | AV* padlist = CvPADLIST(cv); |
1660 | SV** svp = AvARRAY(padlist); |
1661 | cx->blk_sub.cv = cv; |
1662 | cx->blk_sub.olddepth = CvDEPTH(cv); |
1663 | CvDEPTH(cv)++; |
1664 | if (CvDEPTH(cv) < 2) |
1665 | (void)SvREFCNT_inc(cv); |
1666 | else { /* save temporaries on recursion? */ |
1667 | if (CvDEPTH(cv) == 100 && dowarn) |
44a8e56a |
1668 | sub_crush_depth(cv); |
a0d0e21e |
1669 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1670 | AV *newpad = newAV(); |
4aa0a1f7 |
1671 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1672 | I32 ix = AvFILL((AV*)svp[1]); |
1673 | svp = AvARRAY(svp[0]); |
748a9306 |
1674 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1675 | if (svp[ix] != &sv_undef) { |
748a9306 |
1676 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1677 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) |
1678 | || *name == '&') |
1679 | { |
1680 | /* outer lexical or anon code */ |
748a9306 |
1681 | av_store(newpad, ix, |
4aa0a1f7 |
1682 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 |
1683 | } |
1684 | else { /* our own lexical */ |
1685 | if (*name == '@') |
1686 | av_store(newpad, ix, sv = (SV*)newAV()); |
1687 | else if (*name == '%') |
1688 | av_store(newpad, ix, sv = (SV*)newHV()); |
1689 | else |
1690 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1691 | SvPADMY_on(sv); |
1692 | } |
a0d0e21e |
1693 | } |
1694 | else { |
748a9306 |
1695 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1696 | SvPADTMP_on(sv); |
1697 | } |
1698 | } |
1699 | if (cx->blk_sub.hasargs) { |
1700 | AV* av = newAV(); |
1701 | av_extend(av, 0); |
1702 | av_store(newpad, 0, (SV*)av); |
1703 | AvFLAGS(av) = AVf_REIFY; |
1704 | } |
1705 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1706 | AvFILL(padlist) = CvDEPTH(cv); |
1707 | svp = AvARRAY(padlist); |
1708 | } |
1709 | } |
1710 | SAVESPTR(curpad); |
1711 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1712 | if (cx->blk_sub.hasargs) { |
1713 | AV* av = (AV*)curpad[0]; |
1714 | SV** ary; |
1715 | |
1716 | cx->blk_sub.savearray = GvAV(defgv); |
1717 | cx->blk_sub.argarray = av; |
2c05e328 |
1718 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
a0d0e21e |
1719 | ++mark; |
1720 | |
1721 | if (items >= AvMAX(av) + 1) { |
1722 | ary = AvALLOC(av); |
1723 | if (AvARRAY(av) != ary) { |
1724 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1725 | SvPVX(av) = (char*)ary; |
1726 | } |
1727 | if (items >= AvMAX(av) + 1) { |
1728 | AvMAX(av) = items - 1; |
1729 | Renew(ary,items+1,SV*); |
1730 | AvALLOC(av) = ary; |
1731 | SvPVX(av) = (char*)ary; |
1732 | } |
1733 | } |
1734 | Copy(mark,AvARRAY(av),items,SV*); |
1735 | AvFILL(av) = items - 1; |
1736 | |
1737 | while (items--) { |
1738 | if (*mark) |
1739 | SvTEMP_off(*mark); |
1740 | mark++; |
1741 | } |
1742 | } |
f967eb5f |
1743 | if (perldb && curstash != debstash) { |
44a8e56a |
1744 | /* |
1745 | * We do not care about using sv to call CV; |
1746 | * it's for informational purposes only. |
1747 | */ |
1ce6579f |
1748 | SV *sv = GvSV(DBsub); |
1749 | save_item(sv); |
e5cf08de |
1750 | gv_efullname3(sv, CvGV(cv), Nullch); |
1ce6579f |
1751 | } |
a0d0e21e |
1752 | RETURNOP(CvSTART(cv)); |
1753 | } |
1754 | } |
1755 | else |
1756 | label = SvPV(sv,na); |
1757 | } |
1758 | else if (op->op_flags & OPf_SPECIAL) { |
1759 | if (! do_dump) |
1760 | DIE("goto must have label"); |
1761 | } |
1762 | else |
1763 | label = cPVOP->op_pv; |
1764 | |
1765 | if (label && *label) { |
1766 | OP *gotoprobe = 0; |
1767 | |
1768 | /* find label */ |
1769 | |
1770 | lastgotoprobe = 0; |
1771 | *enterops = 0; |
1772 | for (ix = cxstack_ix; ix >= 0; ix--) { |
1773 | cx = &cxstack[ix]; |
1774 | switch (cx->cx_type) { |
1775 | case CXt_SUB: |
1776 | gotoprobe = CvROOT(cx->blk_sub.cv); |
1777 | break; |
1778 | case CXt_EVAL: |
1779 | gotoprobe = eval_root; /* XXX not good for nested eval */ |
1780 | break; |
1781 | case CXt_LOOP: |
1782 | gotoprobe = cx->blk_oldcop->op_sibling; |
1783 | break; |
1784 | case CXt_SUBST: |
1785 | continue; |
1786 | case CXt_BLOCK: |
1787 | if (ix) |
1788 | gotoprobe = cx->blk_oldcop->op_sibling; |
1789 | else |
1790 | gotoprobe = main_root; |
1791 | break; |
0a753a76 |
1792 | case CXt_NULL: |
1793 | DIE("Can't \"goto\" outside a block"); |
1794 | break; |
a0d0e21e |
1795 | default: |
1796 | if (ix) |
1797 | DIE("panic: goto"); |
1798 | else |
1799 | gotoprobe = main_root; |
1800 | break; |
1801 | } |
1802 | retop = dofindlabel(gotoprobe, label, enterops); |
1803 | if (retop) |
1804 | break; |
1805 | lastgotoprobe = gotoprobe; |
1806 | } |
1807 | if (!retop) |
1808 | DIE("Can't find label %s", label); |
1809 | |
1810 | /* pop unwanted frames */ |
1811 | |
1812 | if (ix < cxstack_ix) { |
1813 | I32 oldsave; |
1814 | |
1815 | if (ix < 0) |
1816 | ix = 0; |
1817 | dounwind(ix); |
1818 | TOPBLOCK(cx); |
1819 | oldsave = scopestack[scopestack_ix]; |
1820 | LEAVE_SCOPE(oldsave); |
1821 | } |
1822 | |
1823 | /* push wanted frames */ |
1824 | |
748a9306 |
1825 | if (*enterops && enterops[1]) { |
a0d0e21e |
1826 | OP *oldop = op; |
748a9306 |
1827 | for (ix = 1; enterops[ix]; ix++) { |
a0d0e21e |
1828 | op = enterops[ix]; |
1829 | (*op->op_ppaddr)(); |
1830 | } |
1831 | op = oldop; |
1832 | } |
1833 | } |
1834 | |
1835 | if (do_dump) { |
a5f75d66 |
1836 | #ifdef VMS |
1837 | if (!retop) retop = main_start; |
1838 | #endif |
a0d0e21e |
1839 | restartop = retop; |
1840 | do_undump = TRUE; |
1841 | |
1842 | my_unexec(); |
1843 | |
1844 | restartop = 0; /* hmm, must be GNU unexec().. */ |
1845 | do_undump = FALSE; |
1846 | } |
1847 | |
1ce6579f |
1848 | if (curstack == signalstack) { |
748a9306 |
1849 | restartop = retop; |
a5f75d66 |
1850 | Siglongjmp(top_env, 3); |
748a9306 |
1851 | } |
1852 | |
a0d0e21e |
1853 | RETURNOP(retop); |
1854 | } |
1855 | |
1856 | PP(pp_exit) |
1857 | { |
1858 | dSP; |
1859 | I32 anum; |
1860 | |
1861 | if (MAXARG < 1) |
1862 | anum = 0; |
ff0cee69 |
1863 | else { |
a0d0e21e |
1864 | anum = SvIVx(POPs); |
ff0cee69 |
1865 | #ifdef VMSISH_EXIT |
1866 | if (anum == 1 && VMSISH_EXIT) |
1867 | anum = 0; |
1868 | #endif |
1869 | } |
a0d0e21e |
1870 | my_exit(anum); |
1871 | PUSHs(&sv_undef); |
1872 | RETURN; |
1873 | } |
1874 | |
1875 | #ifdef NOTYET |
1876 | PP(pp_nswitch) |
1877 | { |
1878 | dSP; |
1879 | double value = SvNVx(GvSV(cCOP->cop_gv)); |
1880 | register I32 match = I_32(value); |
1881 | |
1882 | if (value < 0.0) { |
1883 | if (((double)match) > value) |
1884 | --match; /* was fractional--truncate other way */ |
1885 | } |
1886 | match -= cCOP->uop.scop.scop_offset; |
1887 | if (match < 0) |
1888 | match = 0; |
1889 | else if (match > cCOP->uop.scop.scop_max) |
1890 | match = cCOP->uop.scop.scop_max; |
1891 | op = cCOP->uop.scop.scop_next[match]; |
1892 | RETURNOP(op); |
1893 | } |
1894 | |
1895 | PP(pp_cswitch) |
1896 | { |
1897 | dSP; |
1898 | register I32 match; |
1899 | |
1900 | if (multiline) |
1901 | op = op->op_next; /* can't assume anything */ |
1902 | else { |
1903 | match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255; |
1904 | match -= cCOP->uop.scop.scop_offset; |
1905 | if (match < 0) |
1906 | match = 0; |
1907 | else if (match > cCOP->uop.scop.scop_max) |
1908 | match = cCOP->uop.scop.scop_max; |
1909 | op = cCOP->uop.scop.scop_next[match]; |
1910 | } |
1911 | RETURNOP(op); |
1912 | } |
1913 | #endif |
1914 | |
1915 | /* Eval. */ |
1916 | |
1917 | static void |
1918 | save_lines(array, sv) |
1919 | AV *array; |
1920 | SV *sv; |
1921 | { |
1922 | register char *s = SvPVX(sv); |
1923 | register char *send = SvPVX(sv) + SvCUR(sv); |
1924 | register char *t; |
1925 | register I32 line = 1; |
1926 | |
1927 | while (s && s < send) { |
1928 | SV *tmpstr = NEWSV(85,0); |
1929 | |
1930 | sv_upgrade(tmpstr, SVt_PVMG); |
1931 | t = strchr(s, '\n'); |
1932 | if (t) |
1933 | t++; |
1934 | else |
1935 | t = send; |
1936 | |
1937 | sv_setpvn(tmpstr, s, t - s); |
1938 | av_store(array, line++, tmpstr); |
1939 | s = t; |
1940 | } |
1941 | } |
1942 | |
1943 | static OP * |
1e422769 |
1944 | docatch(o) |
1945 | OP *o; |
1946 | { |
1947 | int ret; |
1948 | int oldrunlevel = runlevel; |
1949 | OP *oldop = op; |
1950 | Sigjmp_buf oldtop; |
1951 | |
1952 | op = o; |
1953 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
1954 | #ifdef DEBUGGING |
1955 | assert(mustcatch == TRUE); |
1956 | #endif |
1957 | mustcatch = FALSE; |
1958 | switch ((ret = Sigsetjmp(top_env,1))) { |
1959 | default: /* topmost level handles it */ |
1960 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
1961 | runlevel = oldrunlevel; |
1962 | mustcatch = TRUE; |
1963 | op = oldop; |
1964 | Siglongjmp(top_env, ret); |
1965 | /* NOTREACHED */ |
1966 | case 3: |
1967 | if (!restartop) { |
1968 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
1969 | break; |
1970 | } |
1971 | mustcatch = FALSE; |
1972 | op = restartop; |
1973 | restartop = 0; |
1974 | /* FALL THROUGH */ |
1975 | case 0: |
1976 | runops(); |
1977 | break; |
1978 | } |
1979 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
1980 | runlevel = oldrunlevel; |
1981 | mustcatch = TRUE; |
1982 | op = oldop; |
1983 | return Nullop; |
1984 | } |
1985 | |
1986 | static OP * |
a0d0e21e |
1987 | doeval(gimme) |
1988 | int gimme; |
1989 | { |
1990 | dSP; |
1991 | OP *saveop = op; |
1992 | HV *newstash; |
ff3ff8d1 |
1993 | CV *caller; |
748a9306 |
1994 | AV* comppadlist; |
a0d0e21e |
1995 | |
1996 | in_eval = 1; |
1997 | |
1ce6579f |
1998 | PUSHMARK(SP); |
1999 | |
a0d0e21e |
2000 | /* set up a scratch pad */ |
2001 | |
55497cff |
2002 | SAVEI32(padix); |
a0d0e21e |
2003 | SAVESPTR(curpad); |
2004 | SAVESPTR(comppad); |
2005 | SAVESPTR(comppad_name); |
55497cff |
2006 | SAVEI32(comppad_name_fill); |
2007 | SAVEI32(min_intro_pending); |
2008 | SAVEI32(max_intro_pending); |
748a9306 |
2009 | |
ff3ff8d1 |
2010 | caller = compcv; |
748a9306 |
2011 | SAVESPTR(compcv); |
2012 | compcv = (CV*)NEWSV(1104,0); |
2013 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c |
2014 | CvUNIQUE_on(compcv); |
748a9306 |
2015 | |
a0d0e21e |
2016 | comppad = newAV(); |
2017 | comppad_name = newAV(); |
2018 | comppad_name_fill = 0; |
2019 | min_intro_pending = 0; |
2020 | av_push(comppad, Nullsv); |
2021 | curpad = AvARRAY(comppad); |
2022 | padix = 0; |
2023 | |
748a9306 |
2024 | comppadlist = newAV(); |
2025 | AvREAL_off(comppadlist); |
8e07c86e |
2026 | av_store(comppadlist, 0, (SV*)comppad_name); |
2027 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
2028 | CvPADLIST(compcv) = comppadlist; |
2c05e328 |
2029 | |
2030 | if (saveop->op_type != OP_REQUIRE) |
2031 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(caller); |
07055b4c |
2032 | |
8e07c86e |
2033 | SAVEFREESV(compcv); |
748a9306 |
2034 | |
a0d0e21e |
2035 | /* make sure we compile in the right package */ |
2036 | |
2037 | newstash = curcop->cop_stash; |
2038 | if (curstash != newstash) { |
2039 | SAVESPTR(curstash); |
2040 | curstash = newstash; |
2041 | } |
2042 | SAVESPTR(beginav); |
2043 | beginav = newAV(); |
2044 | SAVEFREESV(beginav); |
2045 | |
2046 | /* try to compile it */ |
2047 | |
2048 | eval_root = Nullop; |
2049 | error_count = 0; |
2050 | curcop = &compiling; |
2051 | curcop->cop_arybase = 0; |
c07a80fd |
2052 | SvREFCNT_dec(rs); |
2053 | rs = newSVpv("\n", 1); |
1ce6579f |
2054 | if (saveop->op_flags & OPf_SPECIAL) |
2055 | in_eval |= 4; |
2056 | else |
2057 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2058 | if (yyparse() || error_count || !eval_root) { |
2059 | SV **newsp; |
2060 | I32 gimme; |
2061 | CONTEXT *cx; |
2062 | I32 optype; |
2063 | |
2064 | op = saveop; |
2065 | if (eval_root) { |
2066 | op_free(eval_root); |
2067 | eval_root = Nullop; |
2068 | } |
1ce6579f |
2069 | SP = stack_base + POPMARK; /* pop original mark */ |
a0d0e21e |
2070 | POPBLOCK(cx,curpm); |
2071 | POPEVAL(cx); |
2072 | pop_return(); |
2073 | lex_end(); |
2074 | LEAVE; |
2075 | if (optype == OP_REQUIRE) |
4633a7c4 |
2076 | DIE("%s", SvPVx(GvSV(errgv), na)); |
c07a80fd |
2077 | SvREFCNT_dec(rs); |
2078 | rs = SvREFCNT_inc(nrs); |
a0d0e21e |
2079 | RETPUSHUNDEF; |
2080 | } |
c07a80fd |
2081 | SvREFCNT_dec(rs); |
2082 | rs = SvREFCNT_inc(nrs); |
a0d0e21e |
2083 | compiling.cop_line = 0; |
a0d0e21e |
2084 | SAVEFREEOP(eval_root); |
2085 | if (gimme & G_ARRAY) |
2086 | list(eval_root); |
2087 | else |
2088 | scalar(eval_root); |
2089 | |
2090 | DEBUG_x(dump_eval()); |
2091 | |
55497cff |
2092 | /* Register with debugger: */ |
55497cff |
2093 | if (perldb && saveop->op_type == OP_REQUIRE) { |
2094 | CV *cv = perl_get_cv("DB::postponed", FALSE); |
55497cff |
2095 | if (cv) { |
2096 | dSP; |
2097 | PUSHMARK(sp); |
2098 | XPUSHs((SV*)compiling.cop_filegv); |
2099 | PUTBACK; |
2100 | perl_call_sv((SV*)cv, G_DISCARD); |
2101 | } |
2102 | } |
2103 | |
a0d0e21e |
2104 | /* compiled okay, so do it */ |
2105 | |
4fdae800 |
2106 | CvDEPTH(compcv) = 1; |
2107 | |
1ce6579f |
2108 | SP = stack_base + POPMARK; /* pop original mark */ |
a0d0e21e |
2109 | RETURNOP(eval_start); |
2110 | } |
2111 | |
2112 | PP(pp_require) |
2113 | { |
2114 | dSP; |
2115 | register CONTEXT *cx; |
2116 | SV *sv; |
2117 | char *name; |
2118 | char *tmpname; |
2119 | SV** svp; |
2120 | I32 gimme = G_SCALAR; |
760ac839 |
2121 | PerlIO *tryrsfp = 0; |
a0d0e21e |
2122 | |
2123 | sv = POPs; |
4633a7c4 |
2124 | if (SvNIOKp(sv) && !SvPOKp(sv)) { |
36477c24 |
2125 | SET_NUMERIC_STANDARD(); |
a5f75d66 |
2126 | if (atof(patchlevel) + 0.00000999 < SvNV(sv)) |
2127 | DIE("Perl %s required--this is only version %s, stopped", |
2128 | SvPV(sv,na),patchlevel); |
a0d0e21e |
2129 | RETPUSHYES; |
2130 | } |
2131 | name = SvPV(sv, na); |
2132 | if (!*name) |
2133 | DIE("Null filename used"); |
4633a7c4 |
2134 | TAINT_PROPER("require"); |
a0d0e21e |
2135 | if (op->op_type == OP_REQUIRE && |
2136 | (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) && |
2137 | *svp != &sv_undef) |
2138 | RETPUSHYES; |
2139 | |
2140 | /* prepare to compile file */ |
2141 | |
2142 | tmpname = savepv(name); |
2143 | if (*tmpname == '/' || |
2144 | (*tmpname == '.' && |
2145 | (tmpname[1] == '/' || |
748a9306 |
2146 | (tmpname[1] == '.' && tmpname[2] == '/'))) |
4633a7c4 |
2147 | #ifdef DOSISH |
2148 | || (tmpname[0] && tmpname[1] == ':') |
2149 | #endif |
748a9306 |
2150 | #ifdef VMS |
bbce6d69 |
2151 | || (strchr(tmpname,':') || ((*tmpname == '[' || *tmpname == '<') && |
2152 | (isALNUM(tmpname[1]) || strchr("$-_]>",tmpname[1])))) |
748a9306 |
2153 | #endif |
2154 | ) |
a0d0e21e |
2155 | { |
760ac839 |
2156 | tryrsfp = PerlIO_open(tmpname,"r"); |
a0d0e21e |
2157 | } |
2158 | else { |
2159 | AV *ar = GvAVn(incgv); |
2160 | I32 i; |
748a9306 |
2161 | #ifdef VMS |
bbce6d69 |
2162 | char unixified[256]; |
2163 | if (tounixspec_ts(tmpname,unixified) != NULL) |
2164 | for (i = 0; i <= AvFILL(ar); i++) { |
748a9306 |
2165 | if (tounixpath_ts(SvPVx(*av_fetch(ar, i, TRUE), na),buf) == NULL) |
4633a7c4 |
2166 | continue; |
bbce6d69 |
2167 | strcat(buf,unixified); |
748a9306 |
2168 | #else |
bbce6d69 |
2169 | for (i = 0; i <= AvFILL(ar); i++) { |
a0d0e21e |
2170 | (void)sprintf(buf, "%s/%s", |
2171 | SvPVx(*av_fetch(ar, i, TRUE), na), name); |
748a9306 |
2172 | #endif |
760ac839 |
2173 | tryrsfp = PerlIO_open(buf, "r"); |
a0d0e21e |
2174 | if (tryrsfp) { |
2175 | char *s = buf; |
2176 | |
2177 | if (*s == '.' && s[1] == '/') |
2178 | s += 2; |
2179 | Safefree(tmpname); |
2180 | tmpname = savepv(s); |
2181 | break; |
2182 | } |
2183 | } |
2184 | } |
2185 | SAVESPTR(compiling.cop_filegv); |
2186 | compiling.cop_filegv = gv_fetchfile(tmpname); |
2187 | Safefree(tmpname); |
2188 | tmpname = Nullch; |
2189 | if (!tryrsfp) { |
2190 | if (op->op_type == OP_REQUIRE) { |
2191 | sprintf(tokenbuf,"Can't locate %s in @INC", name); |
2192 | if (instr(tokenbuf,".h ")) |
2193 | strcat(tokenbuf," (change .h to .ph maybe?)"); |
2194 | if (instr(tokenbuf,".ph ")) |
2195 | strcat(tokenbuf," (did you run h2ph?)"); |
2196 | DIE("%s",tokenbuf); |
2197 | } |
2198 | |
2199 | RETPUSHUNDEF; |
2200 | } |
2201 | |
2202 | /* Assume success here to prevent recursive requirement. */ |
2203 | (void)hv_store(GvHVn(incgv), name, strlen(name), |
2204 | newSVsv(GvSV(compiling.cop_filegv)), 0 ); |
2205 | |
2206 | ENTER; |
2207 | SAVETMPS; |
2208 | lex_start(sv_2mortal(newSVpv("",0))); |
e50aee73 |
2209 | if (rsfp_filters){ |
2210 | save_aptr(&rsfp_filters); |
2211 | rsfp_filters = NULL; |
2212 | } |
2213 | |
a0d0e21e |
2214 | rsfp = tryrsfp; |
2215 | name = savepv(name); |
2216 | SAVEFREEPV(name); |
2217 | SAVEI32(hints); |
2218 | hints = 0; |
2219 | |
2220 | /* switch to eval mode */ |
2221 | |
2222 | push_return(op->op_next); |
2223 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2224 | PUSHEVAL(cx, name, compiling.cop_filegv); |
2225 | |
2226 | compiling.cop_line = 0; |
2227 | |
2228 | PUTBACK; |
1e422769 |
2229 | return DOCATCH(doeval(G_SCALAR)); |
a0d0e21e |
2230 | } |
2231 | |
2232 | PP(pp_dofile) |
2233 | { |
2234 | return pp_require(ARGS); |
2235 | } |
2236 | |
2237 | PP(pp_entereval) |
2238 | { |
2239 | dSP; |
2240 | register CONTEXT *cx; |
2241 | dPOPss; |
55497cff |
2242 | I32 gimme = GIMME, was = sub_generation; |
2243 | char tmpbuf[32], *safestr; |
a0d0e21e |
2244 | STRLEN len; |
55497cff |
2245 | OP *ret; |
a0d0e21e |
2246 | |
2247 | if (!SvPV(sv,len) || !len) |
2248 | RETPUSHUNDEF; |
748a9306 |
2249 | TAINT_PROPER("eval"); |
a0d0e21e |
2250 | |
2251 | ENTER; |
a0d0e21e |
2252 | lex_start(sv); |
748a9306 |
2253 | SAVETMPS; |
a0d0e21e |
2254 | |
2255 | /* switch to eval mode */ |
2256 | |
748a9306 |
2257 | SAVESPTR(compiling.cop_filegv); |
ff0cee69 |
2258 | sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++evalseq); |
a0d0e21e |
2259 | compiling.cop_filegv = gv_fetchfile(tmpbuf+2); |
2260 | compiling.cop_line = 1; |
55497cff |
2261 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2262 | deleting the eval's FILEGV from the stash before gv_check() runs |
2263 | (i.e. before run-time proper). To work around the coredump that |
2264 | ensues, we always turn GvMULTI_on for any globals that were |
2265 | introduced within evals. See force_ident(). GSAR 96-10-12 */ |
2266 | safestr = savepv(tmpbuf); |
2267 | SAVEDELETE(defstash, safestr, strlen(safestr)); |
a0d0e21e |
2268 | SAVEI32(hints); |
2269 | hints = op->op_targ; |
2270 | |
2271 | push_return(op->op_next); |
2272 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2273 | PUSHEVAL(cx, 0, compiling.cop_filegv); |
2274 | |
2275 | /* prepare to compile string */ |
2276 | |
2277 | if (perldb && curstash != debstash) |
2278 | save_lines(GvAV(compiling.cop_filegv), linestr); |
2279 | PUTBACK; |
55497cff |
2280 | ret = doeval(gimme); |
2281 | if (perldb && was != sub_generation) { /* Some subs defined here. */ |
2282 | strcpy(safestr, "_<(eval )"); /* Anything fake and short. */ |
2283 | } |
1e422769 |
2284 | return DOCATCH(ret); |
a0d0e21e |
2285 | } |
2286 | |
2287 | PP(pp_leaveeval) |
2288 | { |
2289 | dSP; |
2290 | register SV **mark; |
2291 | SV **newsp; |
2292 | PMOP *newpm; |
2293 | I32 gimme; |
2294 | register CONTEXT *cx; |
2295 | OP *retop; |
760ac839 |
2296 | U8 save_flags = op -> op_flags; |
a0d0e21e |
2297 | I32 optype; |
2298 | |
2299 | POPBLOCK(cx,newpm); |
2300 | POPEVAL(cx); |
2301 | retop = pop_return(); |
2302 | |
2303 | if (gimme == G_SCALAR) { |
2304 | if (op->op_private & OPpLEAVE_VOID) |
2305 | MARK = newsp; |
2306 | else { |
2307 | MARK = newsp + 1; |
2308 | if (MARK <= SP) { |
2309 | if (SvFLAGS(TOPs) & SVs_TEMP) |
2310 | *MARK = TOPs; |
2311 | else |
2312 | *MARK = sv_mortalcopy(TOPs); |
2313 | } |
2314 | else { |
2315 | MEXTEND(mark,0); |
2316 | *MARK = &sv_undef; |
2317 | } |
2318 | } |
2319 | SP = MARK; |
2320 | } |
2321 | else { |
2322 | for (mark = newsp + 1; mark <= SP; mark++) |
760ac839 |
2323 | if (!(SvFLAGS(*mark) & SVs_TEMP)) |
a0d0e21e |
2324 | *mark = sv_mortalcopy(*mark); |
2325 | /* in case LEAVE wipes old return values */ |
2326 | } |
2327 | curpm = newpm; /* Don't pop $1 et al till now */ |
2328 | |
4fdae800 |
2329 | #ifdef DEBUGGING |
2330 | assert(CvDEPTH(compcv) == 1); |
2331 | #endif |
2332 | CvDEPTH(compcv) = 0; |
2333 | |
1ce6579f |
2334 | if (optype == OP_REQUIRE && |
2335 | !(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) { |
a0d0e21e |
2336 | char *name = cx->blk_eval.old_name; |
2337 | |
1ce6579f |
2338 | /* Unassume the success we assumed earlier. */ |
2339 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
2340 | retop = die("%s did not return a true value", name); |
a0d0e21e |
2341 | } |
2342 | |
2343 | lex_end(); |
2344 | LEAVE; |
4fdae800 |
2345 | |
760ac839 |
2346 | if (!(save_flags & OPf_SPECIAL)) |
1ce6579f |
2347 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2348 | |
2349 | RETURNOP(retop); |
2350 | } |
2351 | |
a0d0e21e |
2352 | PP(pp_entertry) |
2353 | { |
2354 | dSP; |
2355 | register CONTEXT *cx; |
2356 | I32 gimme = GIMME; |
2357 | |
2358 | ENTER; |
2359 | SAVETMPS; |
2360 | |
2361 | push_return(cLOGOP->op_other->op_next); |
2362 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2363 | PUSHEVAL(cx, 0, 0); |
2364 | eval_root = op; /* Only needed so that goto works right. */ |
2365 | |
2366 | in_eval = 1; |
4633a7c4 |
2367 | sv_setpv(GvSV(errgv),""); |
1e422769 |
2368 | PUTBACK; |
2369 | return DOCATCH(op->op_next); |
a0d0e21e |
2370 | } |
2371 | |
2372 | PP(pp_leavetry) |
2373 | { |
2374 | dSP; |
2375 | register SV **mark; |
2376 | SV **newsp; |
2377 | PMOP *newpm; |
2378 | I32 gimme; |
2379 | register CONTEXT *cx; |
2380 | I32 optype; |
2381 | |
2382 | POPBLOCK(cx,newpm); |
2383 | POPEVAL(cx); |
2384 | pop_return(); |
2385 | |
2386 | if (gimme == G_SCALAR) { |
2387 | if (op->op_private & OPpLEAVE_VOID) |
2388 | MARK = newsp; |
2389 | else { |
2390 | MARK = newsp + 1; |
2391 | if (MARK <= SP) { |
2392 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
2393 | *MARK = TOPs; |
2394 | else |
2395 | *MARK = sv_mortalcopy(TOPs); |
2396 | } |
2397 | else { |
2398 | MEXTEND(mark,0); |
2399 | *MARK = &sv_undef; |
2400 | } |
2401 | } |
2402 | SP = MARK; |
2403 | } |
2404 | else { |
2405 | for (mark = newsp + 1; mark <= SP; mark++) |
760ac839 |
2406 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
a0d0e21e |
2407 | *mark = sv_mortalcopy(*mark); |
2408 | /* in case LEAVE wipes old return values */ |
2409 | } |
2410 | curpm = newpm; /* Don't pop $1 et al till now */ |
2411 | |
2412 | LEAVE; |
4633a7c4 |
2413 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2414 | RETURN; |
2415 | } |
2416 | |
2417 | static void |
2418 | doparseform(sv) |
2419 | SV *sv; |
2420 | { |
2421 | STRLEN len; |
2422 | register char *s = SvPV_force(sv, len); |
2423 | register char *send = s + len; |
2424 | register char *base; |
2425 | register I32 skipspaces = 0; |
2426 | bool noblank; |
2427 | bool repeat; |
2428 | bool postspace = FALSE; |
2429 | U16 *fops; |
2430 | register U16 *fpc; |
2431 | U16 *linepc; |
2432 | register I32 arg; |
2433 | bool ischop; |
2434 | |
55497cff |
2435 | if (len == 0) |
bbce6d69 |
2436 | croak("Null picture in formline"); |
55497cff |
2437 | |
2438 | New(804, fops, (send - s)*3+10, U16); /* Almost certainly too long... */ |
a0d0e21e |
2439 | fpc = fops; |
2440 | |
2441 | if (s < send) { |
2442 | linepc = fpc; |
2443 | *fpc++ = FF_LINEMARK; |
2444 | noblank = repeat = FALSE; |
2445 | base = s; |
2446 | } |
2447 | |
2448 | while (s <= send) { |
2449 | switch (*s++) { |
2450 | default: |
2451 | skipspaces = 0; |
2452 | continue; |
2453 | |
2454 | case '~': |
2455 | if (*s == '~') { |
2456 | repeat = TRUE; |
2457 | *s = ' '; |
2458 | } |
2459 | noblank = TRUE; |
2460 | s[-1] = ' '; |
2461 | /* FALL THROUGH */ |
2462 | case ' ': case '\t': |
2463 | skipspaces++; |
2464 | continue; |
2465 | |
2466 | case '\n': case 0: |
2467 | arg = s - base; |
2468 | skipspaces++; |
2469 | arg -= skipspaces; |
2470 | if (arg) { |
5f05dabc |
2471 | if (postspace) |
a0d0e21e |
2472 | *fpc++ = FF_SPACE; |
a0d0e21e |
2473 | *fpc++ = FF_LITERAL; |
2474 | *fpc++ = arg; |
2475 | } |
5f05dabc |
2476 | postspace = FALSE; |
a0d0e21e |
2477 | if (s <= send) |
2478 | skipspaces--; |
2479 | if (skipspaces) { |
2480 | *fpc++ = FF_SKIP; |
2481 | *fpc++ = skipspaces; |
2482 | } |
2483 | skipspaces = 0; |
2484 | if (s <= send) |
2485 | *fpc++ = FF_NEWLINE; |
2486 | if (noblank) { |
2487 | *fpc++ = FF_BLANK; |
2488 | if (repeat) |
2489 | arg = fpc - linepc + 1; |
2490 | else |
2491 | arg = 0; |
2492 | *fpc++ = arg; |
2493 | } |
2494 | if (s < send) { |
2495 | linepc = fpc; |
2496 | *fpc++ = FF_LINEMARK; |
2497 | noblank = repeat = FALSE; |
2498 | base = s; |
2499 | } |
2500 | else |
2501 | s++; |
2502 | continue; |
2503 | |
2504 | case '@': |
2505 | case '^': |
2506 | ischop = s[-1] == '^'; |
2507 | |
2508 | if (postspace) { |
2509 | *fpc++ = FF_SPACE; |
2510 | postspace = FALSE; |
2511 | } |
2512 | arg = (s - base) - 1; |
2513 | if (arg) { |
2514 | *fpc++ = FF_LITERAL; |
2515 | *fpc++ = arg; |
2516 | } |
2517 | |
2518 | base = s - 1; |
2519 | *fpc++ = FF_FETCH; |
2520 | if (*s == '*') { |
2521 | s++; |
2522 | *fpc++ = 0; |
2523 | *fpc++ = FF_LINEGLOB; |
2524 | } |
2525 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { |
2526 | arg = ischop ? 512 : 0; |
2527 | base = s - 1; |
2528 | while (*s == '#') |
2529 | s++; |
2530 | if (*s == '.') { |
2531 | char *f; |
2532 | s++; |
2533 | f = s; |
2534 | while (*s == '#') |
2535 | s++; |
2536 | arg |= 256 + (s - f); |
2537 | } |
2538 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2539 | *fpc++ = FF_DECIMAL; |
2540 | *fpc++ = arg; |
2541 | } |
2542 | else { |
2543 | I32 prespace = 0; |
2544 | bool ismore = FALSE; |
2545 | |
2546 | if (*s == '>') { |
2547 | while (*++s == '>') ; |
2548 | prespace = FF_SPACE; |
2549 | } |
2550 | else if (*s == '|') { |
2551 | while (*++s == '|') ; |
2552 | prespace = FF_HALFSPACE; |
2553 | postspace = TRUE; |
2554 | } |
2555 | else { |
2556 | if (*s == '<') |
2557 | while (*++s == '<') ; |
2558 | postspace = TRUE; |
2559 | } |
2560 | if (*s == '.' && s[1] == '.' && s[2] == '.') { |
2561 | s += 3; |
2562 | ismore = TRUE; |
2563 | } |
2564 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2565 | |
2566 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; |
2567 | |
2568 | if (prespace) |
2569 | *fpc++ = prespace; |
2570 | *fpc++ = FF_ITEM; |
2571 | if (ismore) |
2572 | *fpc++ = FF_MORE; |
2573 | if (ischop) |
2574 | *fpc++ = FF_CHOP; |
2575 | } |
2576 | base = s; |
2577 | skipspaces = 0; |
2578 | continue; |
2579 | } |
2580 | } |
2581 | *fpc++ = FF_END; |
2582 | |
2583 | arg = fpc - fops; |
2584 | { /* need to jump to the next word */ |
2585 | int z; |
2586 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; |
2587 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4); |
2588 | s = SvPVX(sv) + SvCUR(sv) + z; |
2589 | } |
2590 | Copy(fops, s, arg, U16); |
2591 | Safefree(fops); |
55497cff |
2592 | sv_magic(sv, Nullsv, 'f', Nullch, 0); |
a0d0e21e |
2593 | SvCOMPILED_on(sv); |
2594 | } |