Commit | Line | Data |
a0d0e21e |
1 | /* pp_ctl.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e |
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 | |
54310121 |
26 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 |
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 | |
54310121 |
53 | switch (cxstack[cxix].blk_gimme) { |
54 | case G_ARRAY: |
a0d0e21e |
55 | RETPUSHYES; |
54310121 |
56 | case G_SCALAR: |
a0d0e21e |
57 | RETPUSHNO; |
54310121 |
58 | default: |
59 | RETPUSHUNDEF; |
60 | } |
a0d0e21e |
61 | } |
62 | |
63 | PP(pp_regcmaybe) |
64 | { |
65 | return NORMAL; |
66 | } |
67 | |
68 | PP(pp_regcomp) { |
69 | dSP; |
70 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
71 | register char *t; |
72 | SV *tmpstr; |
73 | STRLEN len; |
74 | |
75 | tmpstr = POPs; |
76 | t = SvPV(tmpstr, len); |
77 | |
4633a7c4 |
78 | /* JMR: Check against the last compiled regexp */ |
79 | if ( ! pm->op_pmregexp || ! pm->op_pmregexp->precomp |
80 | || strnNE(pm->op_pmregexp->precomp, t, len) |
81 | || pm->op_pmregexp->precomp[len]) { |
82 | if (pm->op_pmregexp) { |
83 | pregfree(pm->op_pmregexp); |
84 | pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */ |
85 | } |
a0d0e21e |
86 | |
4633a7c4 |
87 | pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */ |
88 | pm->op_pmregexp = pregcomp(t, t + len, pm); |
89 | } |
a0d0e21e |
90 | |
91 | if (!pm->op_pmregexp->prelen && curpm) |
92 | pm = curpm; |
93 | else if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
94 | pm->op_pmflags |= PMf_WHITE; |
95 | |
96 | if (pm->op_pmflags & PMf_KEEP) { |
a0d0e21e |
97 | pm->op_pmflags &= ~PMf_RUNTIME; /* no point compiling again */ |
98 | hoistmust(pm); |
99 | cLOGOP->op_first->op_next = op->op_next; |
a0d0e21e |
100 | } |
101 | RETURN; |
102 | } |
103 | |
104 | PP(pp_substcont) |
105 | { |
106 | dSP; |
107 | register PMOP *pm = (PMOP*) cLOGOP->op_other; |
108 | register CONTEXT *cx = &cxstack[cxstack_ix]; |
109 | register SV *dstr = cx->sb_dstr; |
110 | register char *s = cx->sb_s; |
111 | register char *m = cx->sb_m; |
112 | char *orig = cx->sb_orig; |
c07a80fd |
113 | register REGEXP *rx = cx->sb_rx; |
a0d0e21e |
114 | |
115 | if (cx->sb_iters++) { |
116 | if (cx->sb_iters > cx->sb_maxiters) |
117 | DIE("Substitution loop"); |
118 | |
71be2cbc |
119 | if (!cx->sb_rxtainted) |
120 | cx->sb_rxtainted = SvTAINTED(TOPs); |
a0d0e21e |
121 | sv_catsv(dstr, POPs); |
a0d0e21e |
122 | |
123 | /* Are we done */ |
e50aee73 |
124 | if (cx->sb_once || !pregexec(rx, s, cx->sb_strend, orig, |
a0d0e21e |
125 | s == m, Nullsv, cx->sb_safebase)) |
126 | { |
127 | SV *targ = cx->sb_targ; |
128 | sv_catpvn(dstr, s, cx->sb_strend - s); |
748a9306 |
129 | |
9212bbba |
130 | TAINT_IF(cx->sb_rxtainted || rx->exec_tainted); |
131 | |
4633a7c4 |
132 | (void)SvOOK_off(targ); |
cb0b1708 |
133 | Safefree(SvPVX(targ)); |
748a9306 |
134 | SvPVX(targ) = SvPVX(dstr); |
135 | SvCUR_set(targ, SvCUR(dstr)); |
136 | SvLEN_set(targ, SvLEN(dstr)); |
137 | SvPVX(dstr) = 0; |
138 | sv_free(dstr); |
a0d0e21e |
139 | (void)SvPOK_only(targ); |
140 | SvSETMAGIC(targ); |
9212bbba |
141 | SvTAINT(targ); |
5cd24f17 |
142 | |
a0d0e21e |
143 | PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1))); |
4633a7c4 |
144 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e |
145 | POPSUBST(cx); |
146 | RETURNOP(pm->op_next); |
147 | } |
148 | } |
149 | if (rx->subbase && rx->subbase != orig) { |
150 | m = s; |
151 | s = orig; |
152 | cx->sb_orig = orig = rx->subbase; |
153 | s = orig + (m - s); |
154 | cx->sb_strend = s + (cx->sb_strend - m); |
155 | } |
156 | cx->sb_m = m = rx->startp[0]; |
157 | sv_catpvn(dstr, s, m-s); |
158 | cx->sb_s = rx->endp[0]; |
71be2cbc |
159 | cx->sb_rxtainted |= rx->exec_tainted; |
a0d0e21e |
160 | RETURNOP(pm->op_pmreplstart); |
161 | } |
162 | |
163 | PP(pp_formline) |
164 | { |
165 | dSP; dMARK; dORIGMARK; |
166 | register SV *form = *++MARK; |
167 | register U16 *fpc; |
168 | register char *t; |
169 | register char *f; |
170 | register char *s; |
171 | register char *send; |
172 | register I32 arg; |
173 | register SV *sv; |
174 | char *item; |
175 | I32 itemsize; |
176 | I32 fieldsize; |
177 | I32 lines = 0; |
178 | bool chopspace = (strchr(chopset, ' ') != Nullch); |
179 | char *chophere; |
180 | char *linemark; |
a0d0e21e |
181 | double value; |
182 | bool gotsome; |
183 | STRLEN len; |
184 | |
55497cff |
185 | if (!SvMAGICAL(form) || !SvCOMPILED(form)) { |
a0d0e21e |
186 | SvREADONLY_off(form); |
187 | doparseform(form); |
188 | } |
189 | |
190 | SvPV_force(formtarget, len); |
191 | t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */ |
192 | t += len; |
193 | f = SvPV(form, len); |
194 | /* need to jump to the next word */ |
195 | s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN; |
196 | |
197 | fpc = (U16*)s; |
198 | |
199 | for (;;) { |
200 | DEBUG_f( { |
201 | char *name = "???"; |
202 | arg = -1; |
203 | switch (*fpc) { |
204 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; |
205 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; |
206 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; |
207 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; |
208 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; |
209 | |
210 | case FF_CHECKNL: name = "CHECKNL"; break; |
211 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; |
212 | case FF_SPACE: name = "SPACE"; break; |
213 | case FF_HALFSPACE: name = "HALFSPACE"; break; |
214 | case FF_ITEM: name = "ITEM"; break; |
215 | case FF_CHOP: name = "CHOP"; break; |
216 | case FF_LINEGLOB: name = "LINEGLOB"; break; |
217 | case FF_NEWLINE: name = "NEWLINE"; break; |
218 | case FF_MORE: name = "MORE"; break; |
219 | case FF_LINEMARK: name = "LINEMARK"; break; |
220 | case FF_END: name = "END"; break; |
221 | } |
222 | if (arg >= 0) |
760ac839 |
223 | PerlIO_printf(PerlIO_stderr(), "%-16s%ld\n", name, (long) arg); |
a0d0e21e |
224 | else |
760ac839 |
225 | PerlIO_printf(PerlIO_stderr(), "%-16s\n", name); |
a0d0e21e |
226 | } ) |
227 | switch (*fpc++) { |
228 | case FF_LINEMARK: |
229 | linemark = t; |
a0d0e21e |
230 | lines++; |
231 | gotsome = FALSE; |
232 | break; |
233 | |
234 | case FF_LITERAL: |
235 | arg = *fpc++; |
236 | while (arg--) |
237 | *t++ = *f++; |
238 | break; |
239 | |
240 | case FF_SKIP: |
241 | f += *fpc++; |
242 | break; |
243 | |
244 | case FF_FETCH: |
245 | arg = *fpc++; |
246 | f += arg; |
247 | fieldsize = arg; |
248 | |
249 | if (MARK < SP) |
250 | sv = *++MARK; |
251 | else { |
252 | sv = &sv_no; |
253 | if (dowarn) |
254 | warn("Not enough format arguments"); |
255 | } |
256 | break; |
257 | |
258 | case FF_CHECKNL: |
259 | item = s = SvPV(sv, len); |
260 | itemsize = len; |
261 | if (itemsize > fieldsize) |
262 | itemsize = fieldsize; |
263 | send = chophere = s + itemsize; |
264 | while (s < send) { |
265 | if (*s & ~31) |
266 | gotsome = TRUE; |
267 | else if (*s == '\n') |
268 | break; |
269 | s++; |
270 | } |
271 | itemsize = s - item; |
272 | break; |
273 | |
274 | case FF_CHECKCHOP: |
275 | item = s = SvPV(sv, len); |
276 | itemsize = len; |
277 | if (itemsize <= fieldsize) { |
278 | send = chophere = s + itemsize; |
279 | while (s < send) { |
280 | if (*s == '\r') { |
281 | itemsize = s - item; |
282 | break; |
283 | } |
284 | if (*s++ & ~31) |
285 | gotsome = TRUE; |
286 | } |
287 | } |
288 | else { |
289 | itemsize = fieldsize; |
290 | send = chophere = s + itemsize; |
291 | while (s < send || (s == send && isSPACE(*s))) { |
292 | if (isSPACE(*s)) { |
293 | if (chopspace) |
294 | chophere = s; |
295 | if (*s == '\r') |
296 | break; |
297 | } |
298 | else { |
299 | if (*s & ~31) |
300 | gotsome = TRUE; |
301 | if (strchr(chopset, *s)) |
302 | chophere = s + 1; |
303 | } |
304 | s++; |
305 | } |
306 | itemsize = chophere - item; |
307 | } |
308 | break; |
309 | |
310 | case FF_SPACE: |
311 | arg = fieldsize - itemsize; |
312 | if (arg) { |
313 | fieldsize -= arg; |
314 | while (arg-- > 0) |
315 | *t++ = ' '; |
316 | } |
317 | break; |
318 | |
319 | case FF_HALFSPACE: |
320 | arg = fieldsize - itemsize; |
321 | if (arg) { |
322 | arg /= 2; |
323 | fieldsize -= arg; |
324 | while (arg-- > 0) |
325 | *t++ = ' '; |
326 | } |
327 | break; |
328 | |
329 | case FF_ITEM: |
330 | arg = itemsize; |
331 | s = item; |
332 | while (arg--) { |
333 | #if 'z' - 'a' != 25 |
334 | int ch = *t++ = *s++; |
335 | if (!iscntrl(ch)) |
336 | t[-1] = ' '; |
337 | #else |
338 | if ( !((*t++ = *s++) & ~31) ) |
339 | t[-1] = ' '; |
340 | #endif |
341 | |
342 | } |
343 | break; |
344 | |
345 | case FF_CHOP: |
346 | s = chophere; |
347 | if (chopspace) { |
348 | while (*s && isSPACE(*s)) |
349 | s++; |
350 | } |
351 | sv_chop(sv,s); |
352 | break; |
353 | |
354 | case FF_LINEGLOB: |
355 | item = s = SvPV(sv, len); |
356 | itemsize = len; |
357 | if (itemsize) { |
358 | gotsome = TRUE; |
359 | send = s + itemsize; |
360 | while (s < send) { |
361 | if (*s++ == '\n') { |
362 | if (s == send) |
363 | itemsize--; |
364 | else |
365 | lines++; |
366 | } |
367 | } |
368 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
369 | sv_catpvn(formtarget, item, itemsize); |
370 | SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1); |
371 | t = SvPVX(formtarget) + SvCUR(formtarget); |
372 | } |
373 | break; |
374 | |
375 | case FF_DECIMAL: |
376 | /* If the field is marked with ^ and the value is undefined, |
377 | blank it out. */ |
378 | arg = *fpc++; |
379 | if ((arg & 512) && !SvOK(sv)) { |
380 | arg = fieldsize; |
381 | while (arg--) |
382 | *t++ = ' '; |
383 | break; |
384 | } |
385 | gotsome = TRUE; |
386 | value = SvNV(sv); |
bbce6d69 |
387 | /* Formats aren't yet marked for locales, so assume "yes". */ |
36477c24 |
388 | SET_NUMERIC_LOCAL(); |
a0d0e21e |
389 | if (arg & 256) { |
390 | sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value); |
391 | } else { |
392 | sprintf(t, "%*.0f", (int) fieldsize, value); |
393 | } |
394 | t += fieldsize; |
395 | break; |
396 | |
397 | case FF_NEWLINE: |
398 | f++; |
399 | while (t-- > linemark && *t == ' ') ; |
400 | t++; |
401 | *t++ = '\n'; |
402 | break; |
403 | |
404 | case FF_BLANK: |
405 | arg = *fpc++; |
406 | if (gotsome) { |
407 | if (arg) { /* repeat until fields exhausted? */ |
408 | *t = '\0'; |
409 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
410 | lines += FmLINES(formtarget); |
411 | if (lines == 200) { |
412 | arg = t - linemark; |
413 | if (strnEQ(linemark, linemark - arg, arg)) |
414 | DIE("Runaway format"); |
415 | } |
416 | FmLINES(formtarget) = lines; |
417 | SP = ORIGMARK; |
418 | RETURNOP(cLISTOP->op_first); |
419 | } |
420 | } |
421 | else { |
422 | t = linemark; |
423 | lines--; |
424 | } |
425 | break; |
426 | |
427 | case FF_MORE: |
428 | if (itemsize) { |
429 | arg = fieldsize - itemsize; |
430 | if (arg) { |
431 | fieldsize -= arg; |
432 | while (arg-- > 0) |
433 | *t++ = ' '; |
434 | } |
435 | s = t - 3; |
436 | if (strnEQ(s," ",3)) { |
437 | while (s > SvPVX(formtarget) && isSPACE(s[-1])) |
438 | s--; |
439 | } |
440 | *s++ = '.'; |
441 | *s++ = '.'; |
442 | *s++ = '.'; |
443 | } |
444 | break; |
445 | |
446 | case FF_END: |
447 | *t = '\0'; |
448 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
449 | FmLINES(formtarget) += lines; |
450 | SP = ORIGMARK; |
451 | RETPUSHYES; |
452 | } |
453 | } |
454 | } |
455 | |
456 | PP(pp_grepstart) |
457 | { |
458 | dSP; |
459 | SV *src; |
460 | |
461 | if (stack_base + *markstack_ptr == sp) { |
462 | (void)POPMARK; |
54310121 |
463 | if (GIMME_V == G_SCALAR) |
a0d0e21e |
464 | XPUSHs(&sv_no); |
465 | RETURNOP(op->op_next->op_next); |
466 | } |
467 | stack_sp = stack_base + *markstack_ptr + 1; |
468 | pp_pushmark(); /* push dst */ |
469 | pp_pushmark(); /* push src */ |
470 | ENTER; /* enter outer scope */ |
471 | |
472 | SAVETMPS; |
473 | SAVESPTR(GvSV(defgv)); |
474 | |
475 | ENTER; /* enter inner scope */ |
476 | SAVESPTR(curpm); |
477 | |
478 | src = stack_base[*markstack_ptr]; |
479 | SvTEMP_off(src); |
480 | GvSV(defgv) = src; |
481 | |
482 | PUTBACK; |
483 | if (op->op_type == OP_MAPSTART) |
484 | pp_pushmark(); /* push top */ |
485 | return ((LOGOP*)op->op_next)->op_other; |
486 | } |
487 | |
488 | PP(pp_mapstart) |
489 | { |
490 | DIE("panic: mapstart"); /* uses grepstart */ |
491 | } |
492 | |
493 | PP(pp_mapwhile) |
494 | { |
495 | dSP; |
496 | I32 diff = (sp - stack_base) - *markstack_ptr; |
497 | I32 count; |
498 | I32 shift; |
499 | SV** src; |
500 | SV** dst; |
501 | |
502 | ++markstack_ptr[-1]; |
503 | if (diff) { |
504 | if (diff > markstack_ptr[-1] - markstack_ptr[-2]) { |
505 | shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]); |
506 | count = (sp - stack_base) - markstack_ptr[-1] + 2; |
507 | |
508 | EXTEND(sp,shift); |
509 | src = sp; |
510 | dst = (sp += shift); |
511 | markstack_ptr[-1] += shift; |
512 | *markstack_ptr += shift; |
513 | while (--count) |
514 | *dst-- = *src--; |
515 | } |
516 | dst = stack_base + (markstack_ptr[-2] += diff) - 1; |
517 | ++diff; |
518 | while (--diff) |
519 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); |
520 | } |
521 | LEAVE; /* exit inner scope */ |
522 | |
523 | /* All done yet? */ |
524 | if (markstack_ptr[-1] > *markstack_ptr) { |
525 | I32 items; |
54310121 |
526 | I32 gimme = GIMME_V; |
a0d0e21e |
527 | |
528 | (void)POPMARK; /* pop top */ |
529 | LEAVE; /* exit outer scope */ |
530 | (void)POPMARK; /* pop src */ |
531 | items = --*markstack_ptr - markstack_ptr[-1]; |
532 | (void)POPMARK; /* pop dst */ |
533 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
534 | if (gimme == G_SCALAR) { |
a0d0e21e |
535 | dTARGET; |
536 | XPUSHi(items); |
a0d0e21e |
537 | } |
54310121 |
538 | else if (gimme == G_ARRAY) |
539 | SP += items; |
a0d0e21e |
540 | RETURN; |
541 | } |
542 | else { |
543 | SV *src; |
544 | |
545 | ENTER; /* enter inner scope */ |
546 | SAVESPTR(curpm); |
547 | |
548 | src = stack_base[markstack_ptr[-1]]; |
549 | SvTEMP_off(src); |
550 | GvSV(defgv) = src; |
551 | |
552 | RETURNOP(cLOGOP->op_other); |
553 | } |
554 | } |
555 | |
556 | |
557 | PP(pp_sort) |
558 | { |
559 | dSP; dMARK; dORIGMARK; |
560 | register SV **up; |
561 | SV **myorigmark = ORIGMARK; |
562 | register I32 max; |
563 | HV *stash; |
564 | GV *gv; |
565 | CV *cv; |
566 | I32 gimme = GIMME; |
567 | OP* nextop = op->op_next; |
568 | |
569 | if (gimme != G_ARRAY) { |
570 | SP = MARK; |
571 | RETPUSHUNDEF; |
572 | } |
573 | |
574 | if (op->op_flags & OPf_STACKED) { |
575 | ENTER; |
576 | if (op->op_flags & OPf_SPECIAL) { |
577 | OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */ |
578 | kid = kUNOP->op_first; /* pass rv2gv */ |
579 | kid = kUNOP->op_first; /* pass leave */ |
580 | sortcop = kid->op_next; |
581 | stash = curcop->cop_stash; |
582 | } |
583 | else { |
584 | cv = sv_2cv(*++MARK, &stash, &gv, 0); |
585 | if (!(cv && CvROOT(cv))) { |
586 | if (gv) { |
587 | SV *tmpstr = sv_newmortal(); |
e5cf08de |
588 | gv_efullname3(tmpstr, gv, Nullch); |
a0d0e21e |
589 | if (cv && CvXSUB(cv)) |
590 | DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr)); |
591 | DIE("Undefined sort subroutine \"%s\" called", |
592 | SvPVX(tmpstr)); |
593 | } |
594 | if (cv) { |
595 | if (CvXSUB(cv)) |
596 | DIE("Xsub called in sort"); |
597 | DIE("Undefined subroutine in sort"); |
598 | } |
599 | DIE("Not a CODE reference in sort"); |
600 | } |
601 | sortcop = CvSTART(cv); |
602 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
603 | CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL]; |
604 | |
605 | SAVESPTR(curpad); |
606 | curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
607 | } |
608 | } |
609 | else { |
610 | sortcop = Nullop; |
611 | stash = curcop->cop_stash; |
612 | } |
613 | |
614 | up = myorigmark + 1; |
615 | while (MARK < SP) { /* This may or may not shift down one here. */ |
616 | /*SUPPRESS 560*/ |
617 | if (*up = *++MARK) { /* Weed out nulls. */ |
9f8d30d5 |
618 | SvTEMP_off(*up); |
619 | if (!sortcop && !SvPOK(*up)) |
a0d0e21e |
620 | (void)sv_2pv(*up, &na); |
a0d0e21e |
621 | up++; |
622 | } |
623 | } |
624 | max = --up - myorigmark; |
625 | if (sortcop) { |
626 | if (max > 1) { |
627 | AV *oldstack; |
628 | CONTEXT *cx; |
629 | SV** newsp; |
54310121 |
630 | bool oldcatch = CATCH_GET; |
a0d0e21e |
631 | |
632 | SAVETMPS; |
633 | SAVESPTR(op); |
634 | |
1ce6579f |
635 | oldstack = curstack; |
a0d0e21e |
636 | if (!sortstack) { |
637 | sortstack = newAV(); |
638 | AvREAL_off(sortstack); |
639 | av_extend(sortstack, 32); |
640 | } |
54310121 |
641 | CATCH_SET(TRUE); |
1ce6579f |
642 | SWITCHSTACK(curstack, sortstack); |
a0d0e21e |
643 | if (sortstash != stash) { |
644 | firstgv = gv_fetchpv("a", TRUE, SVt_PV); |
645 | secondgv = gv_fetchpv("b", TRUE, SVt_PV); |
646 | sortstash = stash; |
647 | } |
648 | |
649 | SAVESPTR(GvSV(firstgv)); |
650 | SAVESPTR(GvSV(secondgv)); |
0a753a76 |
651 | PUSHBLOCK(cx, CXt_NULL, stack_base); |
a0d0e21e |
652 | sortcxix = cxstack_ix; |
653 | |
654 | qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv); |
655 | |
656 | POPBLOCK(cx,curpm); |
657 | SWITCHSTACK(sortstack, oldstack); |
54310121 |
658 | CATCH_SET(oldcatch); |
a0d0e21e |
659 | } |
660 | LEAVE; |
661 | } |
662 | else { |
663 | if (max > 1) { |
664 | MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
bbce6d69 |
665 | qsort((char*)(ORIGMARK+1), max, sizeof(SV*), |
666 | (op->op_private & OPpLOCALE) ? sortcmp_locale : sortcmp); |
a0d0e21e |
667 | } |
668 | } |
669 | stack_sp = ORIGMARK + max; |
670 | return nextop; |
671 | } |
672 | |
673 | /* Range stuff. */ |
674 | |
675 | PP(pp_range) |
676 | { |
677 | if (GIMME == G_ARRAY) |
678 | return cCONDOP->op_true; |
679 | return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true; |
680 | } |
681 | |
682 | PP(pp_flip) |
683 | { |
684 | dSP; |
685 | |
686 | if (GIMME == G_ARRAY) { |
687 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
688 | } |
689 | else { |
690 | dTOPss; |
691 | SV *targ = PAD_SV(op->op_targ); |
692 | |
693 | if ((op->op_private & OPpFLIP_LINENUM) |
694 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
695 | : SvTRUE(sv) ) { |
696 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
697 | if (op->op_flags & OPf_SPECIAL) { |
698 | sv_setiv(targ, 1); |
699 | RETURN; |
700 | } |
701 | else { |
702 | sv_setiv(targ, 0); |
703 | sp--; |
704 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
705 | } |
706 | } |
707 | sv_setpv(TARG, ""); |
708 | SETs(targ); |
709 | RETURN; |
710 | } |
711 | } |
712 | |
713 | PP(pp_flop) |
714 | { |
715 | dSP; |
716 | |
717 | if (GIMME == G_ARRAY) { |
718 | dPOPPOPssrl; |
719 | register I32 i; |
720 | register SV *sv; |
721 | I32 max; |
722 | |
4633a7c4 |
723 | if (SvNIOKp(left) || !SvPOKp(left) || |
bbce6d69 |
724 | (looks_like_number(left) && *SvPVX(left) != '0') ) |
725 | { |
a0d0e21e |
726 | i = SvIV(left); |
727 | max = SvIV(right); |
bbce6d69 |
728 | if (max >= i) { |
729 | EXTEND_MORTAL(max - i + 1); |
a0d0e21e |
730 | EXTEND(SP, max - i + 1); |
bbce6d69 |
731 | } |
a0d0e21e |
732 | while (i <= max) { |
bbce6d69 |
733 | sv = sv_2mortal(newSViv(i++)); |
a0d0e21e |
734 | PUSHs(sv); |
735 | } |
736 | } |
737 | else { |
738 | SV *final = sv_mortalcopy(right); |
739 | STRLEN len; |
740 | char *tmps = SvPV(final, len); |
741 | |
742 | sv = sv_mortalcopy(left); |
4633a7c4 |
743 | while (!SvNIOKp(sv) && SvCUR(sv) <= len && |
a0d0e21e |
744 | strNE(SvPVX(sv),tmps) ) { |
745 | XPUSHs(sv); |
746 | sv = sv_2mortal(newSVsv(sv)); |
747 | sv_inc(sv); |
748 | } |
749 | if (strEQ(SvPVX(sv),tmps)) |
750 | XPUSHs(sv); |
751 | } |
752 | } |
753 | else { |
754 | dTOPss; |
755 | SV *targ = PAD_SV(cUNOP->op_first->op_targ); |
756 | sv_inc(targ); |
757 | if ((op->op_private & OPpFLIP_LINENUM) |
758 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
759 | : SvTRUE(sv) ) { |
760 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
761 | sv_catpv(targ, "E0"); |
762 | } |
763 | SETs(targ); |
764 | } |
765 | |
766 | RETURN; |
767 | } |
768 | |
769 | /* Control. */ |
770 | |
771 | static I32 |
772 | dopoptolabel(label) |
773 | char *label; |
774 | { |
775 | register I32 i; |
776 | register CONTEXT *cx; |
777 | |
778 | for (i = cxstack_ix; i >= 0; i--) { |
779 | cx = &cxstack[i]; |
780 | switch (cx->cx_type) { |
781 | case CXt_SUBST: |
782 | if (dowarn) |
783 | warn("Exiting substitution via %s", op_name[op->op_type]); |
784 | break; |
785 | case CXt_SUB: |
786 | if (dowarn) |
787 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
788 | break; |
789 | case CXt_EVAL: |
790 | if (dowarn) |
791 | warn("Exiting eval via %s", op_name[op->op_type]); |
792 | break; |
0a753a76 |
793 | case CXt_NULL: |
794 | if (dowarn) |
795 | warn("Exiting pseudo-block via %s", op_name[op->op_type]); |
796 | return -1; |
a0d0e21e |
797 | case CXt_LOOP: |
798 | if (!cx->blk_loop.label || |
799 | strNE(label, cx->blk_loop.label) ) { |
68dc0745 |
800 | DEBUG_l(deb("(Skipping label #%ld %s)\n", |
801 | (long)i, cx->blk_loop.label)); |
a0d0e21e |
802 | continue; |
803 | } |
68dc0745 |
804 | DEBUG_l( deb("(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e |
805 | return i; |
806 | } |
807 | } |
808 | return i; |
809 | } |
810 | |
e50aee73 |
811 | I32 |
812 | dowantarray() |
813 | { |
54310121 |
814 | I32 gimme = block_gimme(); |
815 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
816 | } |
817 | |
818 | I32 |
819 | block_gimme() |
820 | { |
e50aee73 |
821 | I32 cxix; |
822 | |
823 | cxix = dopoptosub(cxstack_ix); |
824 | if (cxix < 0) |
825 | return G_SCALAR; |
826 | |
54310121 |
827 | switch (cxstack[cxix].blk_gimme) { |
828 | case G_VOID: |
829 | return G_VOID; |
830 | case G_SCALAR: |
e50aee73 |
831 | return G_SCALAR; |
54310121 |
832 | case G_ARRAY: |
833 | return G_ARRAY; |
834 | default: |
835 | croak("panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
836 | } |
e50aee73 |
837 | } |
838 | |
a0d0e21e |
839 | static I32 |
840 | dopoptosub(startingblock) |
841 | I32 startingblock; |
842 | { |
843 | I32 i; |
844 | register CONTEXT *cx; |
845 | for (i = startingblock; i >= 0; i--) { |
846 | cx = &cxstack[i]; |
847 | switch (cx->cx_type) { |
848 | default: |
849 | continue; |
850 | case CXt_EVAL: |
851 | case CXt_SUB: |
68dc0745 |
852 | DEBUG_l( deb("(Found sub #%ld)\n", (long)i)); |
a0d0e21e |
853 | return i; |
854 | } |
855 | } |
856 | return i; |
857 | } |
858 | |
859 | static I32 |
860 | dopoptoeval(startingblock) |
861 | I32 startingblock; |
862 | { |
863 | I32 i; |
864 | register CONTEXT *cx; |
865 | for (i = startingblock; i >= 0; i--) { |
866 | cx = &cxstack[i]; |
867 | switch (cx->cx_type) { |
868 | default: |
869 | continue; |
870 | case CXt_EVAL: |
68dc0745 |
871 | DEBUG_l( deb("(Found eval #%ld)\n", (long)i)); |
a0d0e21e |
872 | return i; |
873 | } |
874 | } |
875 | return i; |
876 | } |
877 | |
878 | static I32 |
879 | dopoptoloop(startingblock) |
880 | I32 startingblock; |
881 | { |
882 | I32 i; |
883 | register CONTEXT *cx; |
884 | for (i = startingblock; i >= 0; i--) { |
885 | cx = &cxstack[i]; |
886 | switch (cx->cx_type) { |
887 | case CXt_SUBST: |
888 | if (dowarn) |
5f05dabc |
889 | warn("Exiting substitution via %s", op_name[op->op_type]); |
a0d0e21e |
890 | break; |
891 | case CXt_SUB: |
892 | if (dowarn) |
893 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
894 | break; |
895 | case CXt_EVAL: |
896 | if (dowarn) |
897 | warn("Exiting eval via %s", op_name[op->op_type]); |
898 | break; |
0a753a76 |
899 | case CXt_NULL: |
900 | if (dowarn) |
901 | warn("Exiting pseudo-block via %s", op_name[op->op_type]); |
902 | return -1; |
a0d0e21e |
903 | case CXt_LOOP: |
68dc0745 |
904 | DEBUG_l( deb("(Found loop #%ld)\n", (long)i)); |
a0d0e21e |
905 | return i; |
906 | } |
907 | } |
908 | return i; |
909 | } |
910 | |
911 | void |
912 | dounwind(cxix) |
913 | I32 cxix; |
914 | { |
915 | register CONTEXT *cx; |
916 | SV **newsp; |
917 | I32 optype; |
918 | |
919 | while (cxstack_ix > cxix) { |
920 | cx = &cxstack[cxstack_ix--]; |
760ac839 |
921 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", (long) cxstack_ix+1, |
a0d0e21e |
922 | block_type[cx->cx_type])); |
923 | /* Note: we don't need to restore the base context info till the end. */ |
924 | switch (cx->cx_type) { |
925 | case CXt_SUB: |
926 | POPSUB(cx); |
927 | break; |
928 | case CXt_EVAL: |
929 | POPEVAL(cx); |
930 | break; |
931 | case CXt_LOOP: |
932 | POPLOOP(cx); |
933 | break; |
0a753a76 |
934 | case CXt_NULL: |
a0d0e21e |
935 | case CXt_SUBST: |
936 | break; |
937 | } |
938 | } |
939 | } |
940 | |
a0d0e21e |
941 | OP * |
942 | die_where(message) |
943 | char *message; |
944 | { |
945 | if (in_eval) { |
946 | I32 cxix; |
947 | register CONTEXT *cx; |
948 | I32 gimme; |
949 | SV **newsp; |
950 | |
4633a7c4 |
951 | if (in_eval & 4) { |
952 | SV **svp; |
953 | STRLEN klen = strlen(message); |
954 | |
955 | svp = hv_fetch(GvHV(errgv), message, klen, TRUE); |
956 | if (svp) { |
957 | if (!SvIOK(*svp)) { |
958 | static char prefix[] = "\t(in cleanup) "; |
959 | sv_upgrade(*svp, SVt_IV); |
960 | (void)SvIOK_only(*svp); |
961 | SvGROW(GvSV(errgv), SvCUR(GvSV(errgv))+sizeof(prefix)+klen); |
962 | sv_catpvn(GvSV(errgv), prefix, sizeof(prefix)-1); |
963 | sv_catpvn(GvSV(errgv), message, klen); |
964 | } |
965 | sv_inc(*svp); |
966 | } |
967 | } |
968 | else |
c07a80fd |
969 | sv_setpv(GvSV(errgv), message); |
4633a7c4 |
970 | |
a0d0e21e |
971 | cxix = dopoptoeval(cxstack_ix); |
972 | if (cxix >= 0) { |
973 | I32 optype; |
974 | |
975 | if (cxix < cxstack_ix) |
976 | dounwind(cxix); |
977 | |
978 | POPBLOCK(cx,curpm); |
979 | if (cx->cx_type != CXt_EVAL) { |
760ac839 |
980 | PerlIO_printf(PerlIO_stderr(), "panic: die %s", message); |
a0d0e21e |
981 | my_exit(1); |
982 | } |
983 | POPEVAL(cx); |
984 | |
985 | if (gimme == G_SCALAR) |
986 | *++newsp = &sv_undef; |
987 | stack_sp = newsp; |
988 | |
989 | LEAVE; |
748a9306 |
990 | |
a0d0e21e |
991 | if (optype == OP_REQUIRE) |
4633a7c4 |
992 | DIE("%s", SvPVx(GvSV(errgv), na)); |
a0d0e21e |
993 | return pop_return(); |
994 | } |
995 | } |
760ac839 |
996 | PerlIO_printf(PerlIO_stderr(), "%s",message); |
997 | PerlIO_flush(PerlIO_stderr()); |
f86702cc |
998 | my_failure_exit(); |
999 | /* NOTREACHED */ |
a0d0e21e |
1000 | return 0; |
1001 | } |
1002 | |
1003 | PP(pp_xor) |
1004 | { |
1005 | dSP; dPOPTOPssrl; |
1006 | if (SvTRUE(left) != SvTRUE(right)) |
1007 | RETSETYES; |
1008 | else |
1009 | RETSETNO; |
1010 | } |
1011 | |
1012 | PP(pp_andassign) |
1013 | { |
1014 | dSP; |
1015 | if (!SvTRUE(TOPs)) |
1016 | RETURN; |
1017 | else |
1018 | RETURNOP(cLOGOP->op_other); |
1019 | } |
1020 | |
1021 | PP(pp_orassign) |
1022 | { |
1023 | dSP; |
1024 | if (SvTRUE(TOPs)) |
1025 | RETURN; |
1026 | else |
1027 | RETURNOP(cLOGOP->op_other); |
1028 | } |
1029 | |
1030 | #ifdef DEPRECATED |
1031 | PP(pp_entersubr) |
1032 | { |
1033 | dSP; |
1034 | SV** mark = (stack_base + *markstack_ptr + 1); |
1035 | SV* cv = *mark; |
1036 | while (mark < sp) { /* emulate old interface */ |
1037 | *mark = mark[1]; |
1038 | mark++; |
1039 | } |
1040 | *sp = cv; |
1041 | return pp_entersub(); |
1042 | } |
1043 | #endif |
1044 | |
1045 | PP(pp_caller) |
1046 | { |
1047 | dSP; |
1048 | register I32 cxix = dopoptosub(cxstack_ix); |
1049 | register CONTEXT *cx; |
1050 | I32 dbcxix; |
54310121 |
1051 | I32 gimme; |
a0d0e21e |
1052 | SV *sv; |
1053 | I32 count = 0; |
1054 | |
1055 | if (MAXARG) |
1056 | count = POPi; |
1057 | EXTEND(SP, 6); |
1058 | for (;;) { |
1059 | if (cxix < 0) { |
1060 | if (GIMME != G_ARRAY) |
1061 | RETPUSHUNDEF; |
1062 | RETURN; |
1063 | } |
1064 | if (DBsub && cxix >= 0 && |
1065 | cxstack[cxix].blk_sub.cv == GvCV(DBsub)) |
1066 | count++; |
1067 | if (!count--) |
1068 | break; |
1069 | cxix = dopoptosub(cxix - 1); |
1070 | } |
1071 | cx = &cxstack[cxix]; |
06a5b730 |
1072 | if (cxstack[cxix].cx_type == CXt_SUB) { |
1073 | dbcxix = dopoptosub(cxix - 1); |
1074 | /* We expect that cxstack[dbcxix] is CXt_SUB, anyway, the |
1075 | field below is defined for any cx. */ |
1076 | if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub)) |
1077 | cx = &cxstack[dbcxix]; |
1078 | } |
1079 | |
a0d0e21e |
1080 | if (GIMME != G_ARRAY) { |
1081 | dTARGET; |
1082 | |
1083 | sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash)); |
1084 | PUSHs(TARG); |
1085 | RETURN; |
1086 | } |
a0d0e21e |
1087 | |
1088 | PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0))); |
1089 | PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0))); |
1090 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line))); |
1091 | if (!MAXARG) |
1092 | RETURN; |
06a5b730 |
1093 | if (cx->cx_type == CXt_SUB) { /* So is cxstack[dbcxix]. */ |
a0d0e21e |
1094 | sv = NEWSV(49, 0); |
e5cf08de |
1095 | gv_efullname3(sv, CvGV(cxstack[cxix].blk_sub.cv), Nullch); |
a0d0e21e |
1096 | PUSHs(sv_2mortal(sv)); |
1097 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
1098 | } |
1099 | else { |
1100 | PUSHs(sv_2mortal(newSVpv("(eval)",0))); |
1101 | PUSHs(sv_2mortal(newSViv(0))); |
1102 | } |
54310121 |
1103 | gimme = (I32)cx->blk_gimme; |
1104 | if (gimme == G_VOID) |
1105 | PUSHs(&sv_undef); |
1106 | else |
1107 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); |
4633a7c4 |
1108 | if (cx->cx_type == CXt_EVAL) { |
06a5b730 |
1109 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 |
1110 | PUSHs(cx->blk_eval.cur_text); |
06a5b730 |
1111 | PUSHs(&sv_no); |
1112 | } |
1113 | else if (cx->blk_eval.old_name) { /* Try blocks have old_name == 0. */ |
1114 | /* Require, put the name. */ |
1115 | PUSHs(sv_2mortal(newSVpv(cx->blk_eval.old_name, 0))); |
1116 | PUSHs(&sv_yes); |
1117 | } |
4633a7c4 |
1118 | } |
1119 | else if (cx->cx_type == CXt_SUB && |
1120 | cx->blk_sub.hasargs && |
1121 | curcop->cop_stash == debstash) |
1122 | { |
a0d0e21e |
1123 | AV *ary = cx->blk_sub.argarray; |
1124 | int off = AvARRAY(ary) - AvALLOC(ary); |
1125 | |
1126 | if (!dbargs) { |
1127 | GV* tmpgv; |
1128 | dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE, |
1129 | SVt_PVAV))); |
a5f75d66 |
1130 | GvMULTI_on(tmpgv); |
a0d0e21e |
1131 | AvREAL_off(dbargs); /* XXX Should be REIFY */ |
1132 | } |
1133 | |
1134 | if (AvMAX(dbargs) < AvFILL(ary) + off) |
1135 | av_extend(dbargs, AvFILL(ary) + off); |
1136 | Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*); |
1137 | AvFILL(dbargs) = AvFILL(ary) + off; |
1138 | } |
1139 | RETURN; |
1140 | } |
1141 | |
1142 | static int |
1143 | sortcv(a, b) |
1144 | const void *a; |
1145 | const void *b; |
1146 | { |
9607fc9c |
1147 | SV * const *str1 = (SV * const *)a; |
1148 | SV * const *str2 = (SV * const *)b; |
748a9306 |
1149 | I32 oldsaveix = savestack_ix; |
a0d0e21e |
1150 | I32 oldscopeix = scopestack_ix; |
1151 | I32 result; |
1152 | GvSV(firstgv) = *str1; |
1153 | GvSV(secondgv) = *str2; |
1154 | stack_sp = stack_base; |
1155 | op = sortcop; |
a6c477ed |
1156 | runops(); |
a0d0e21e |
1157 | if (stack_sp != stack_base + 1) |
1158 | croak("Sort subroutine didn't return single value"); |
748a9306 |
1159 | if (!SvNIOKp(*stack_sp)) |
a0d0e21e |
1160 | croak("Sort subroutine didn't return a numeric value"); |
1161 | result = SvIV(*stack_sp); |
1162 | while (scopestack_ix > oldscopeix) { |
1163 | LEAVE; |
1164 | } |
748a9306 |
1165 | leave_scope(oldsaveix); |
a0d0e21e |
1166 | return result; |
1167 | } |
1168 | |
1169 | static int |
1170 | sortcmp(a, b) |
1171 | const void *a; |
1172 | const void *b; |
1173 | { |
9607fc9c |
1174 | return sv_cmp(*(SV * const *)a, *(SV * const *)b); |
bbce6d69 |
1175 | } |
e5cf08de |
1176 | |
bbce6d69 |
1177 | static int |
1178 | sortcmp_locale(a, b) |
1179 | const void *a; |
1180 | const void *b; |
1181 | { |
9607fc9c |
1182 | return sv_cmp_locale(*(SV * const *)a, *(SV * const *)b); |
a0d0e21e |
1183 | } |
1184 | |
1185 | PP(pp_reset) |
1186 | { |
1187 | dSP; |
1188 | char *tmps; |
1189 | |
1190 | if (MAXARG < 1) |
1191 | tmps = ""; |
1192 | else |
1193 | tmps = POPp; |
1194 | sv_reset(tmps, curcop->cop_stash); |
1195 | PUSHs(&sv_yes); |
1196 | RETURN; |
1197 | } |
1198 | |
1199 | PP(pp_lineseq) |
1200 | { |
1201 | return NORMAL; |
1202 | } |
1203 | |
1204 | PP(pp_dbstate) |
1205 | { |
1206 | curcop = (COP*)op; |
1207 | TAINT_NOT; /* Each statement is presumed innocent */ |
1208 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
1209 | FREETMPS; |
1210 | |
1211 | if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace)) |
1212 | { |
1213 | SV **sp; |
1214 | register CV *cv; |
1215 | register CONTEXT *cx; |
748a9306 |
1216 | I32 gimme = G_ARRAY; |
a0d0e21e |
1217 | I32 hasargs; |
1218 | GV *gv; |
1219 | |
a0d0e21e |
1220 | gv = DBgv; |
1221 | cv = GvCV(gv); |
a0d0e21e |
1222 | if (!cv) |
1223 | DIE("No DB::DB routine defined"); |
1224 | |
06a5b730 |
1225 | if (CvDEPTH(cv) >= 1 && !(debug & (1<<30))) /* don't do recursive DB::DB call */ |
a0d0e21e |
1226 | return NORMAL; |
748a9306 |
1227 | |
4633a7c4 |
1228 | ENTER; |
1229 | SAVETMPS; |
1230 | |
748a9306 |
1231 | SAVEI32(debug); |
55497cff |
1232 | SAVESTACK_POS(); |
748a9306 |
1233 | debug = 0; |
1234 | hasargs = 0; |
1235 | sp = stack_sp; |
1236 | |
a0d0e21e |
1237 | push_return(op->op_next); |
748a9306 |
1238 | PUSHBLOCK(cx, CXt_SUB, sp); |
a0d0e21e |
1239 | PUSHSUB(cx); |
1240 | CvDEPTH(cv)++; |
1241 | (void)SvREFCNT_inc(cv); |
1242 | SAVESPTR(curpad); |
1243 | curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE)); |
1244 | RETURNOP(CvSTART(cv)); |
1245 | } |
1246 | else |
1247 | return NORMAL; |
1248 | } |
1249 | |
1250 | PP(pp_scope) |
1251 | { |
1252 | return NORMAL; |
1253 | } |
1254 | |
1255 | PP(pp_enteriter) |
1256 | { |
1257 | dSP; dMARK; |
1258 | register CONTEXT *cx; |
54310121 |
1259 | I32 gimme = GIMME_V; |
a0d0e21e |
1260 | SV **svp; |
1261 | |
4633a7c4 |
1262 | ENTER; |
1263 | SAVETMPS; |
1264 | |
a0d0e21e |
1265 | if (op->op_targ) |
1266 | svp = &curpad[op->op_targ]; /* "my" variable */ |
1267 | else |
1268 | svp = &GvSV((GV*)POPs); /* symbol table variable */ |
1269 | |
4633a7c4 |
1270 | SAVESPTR(*svp); |
1271 | |
a0d0e21e |
1272 | ENTER; |
1273 | |
1274 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1275 | PUSHLOOP(cx, svp, MARK); |
44a8e56a |
1276 | if (op->op_flags & OPf_STACKED) |
1277 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
4633a7c4 |
1278 | else { |
1ce6579f |
1279 | cx->blk_loop.iterary = curstack; |
1280 | AvFILL(curstack) = sp - stack_base; |
4633a7c4 |
1281 | cx->blk_loop.iterix = MARK - stack_base; |
1282 | } |
a0d0e21e |
1283 | |
1284 | RETURN; |
1285 | } |
1286 | |
1287 | PP(pp_enterloop) |
1288 | { |
1289 | dSP; |
1290 | register CONTEXT *cx; |
54310121 |
1291 | I32 gimme = GIMME_V; |
a0d0e21e |
1292 | |
1293 | ENTER; |
1294 | SAVETMPS; |
1295 | ENTER; |
1296 | |
1297 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1298 | PUSHLOOP(cx, 0, SP); |
1299 | |
1300 | RETURN; |
1301 | } |
1302 | |
1303 | PP(pp_leaveloop) |
1304 | { |
1305 | dSP; |
1306 | register CONTEXT *cx; |
f86702cc |
1307 | struct block_loop cxloop; |
a0d0e21e |
1308 | I32 gimme; |
1309 | SV **newsp; |
1310 | PMOP *newpm; |
1311 | SV **mark; |
1312 | |
1313 | POPBLOCK(cx,newpm); |
4fdae800 |
1314 | mark = newsp; |
f86702cc |
1315 | POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */ |
1316 | |
54310121 |
1317 | if (gimme == G_VOID) |
1318 | ; /* do nothing */ |
1319 | else if (gimme == G_SCALAR) { |
1320 | if (mark < SP) |
1321 | *++newsp = sv_mortalcopy(*SP); |
1322 | else |
1323 | *++newsp = &sv_undef; |
a0d0e21e |
1324 | } |
1325 | else { |
1326 | while (mark < SP) |
1327 | *++newsp = sv_mortalcopy(*++mark); |
1328 | } |
f86702cc |
1329 | SP = newsp; |
1330 | PUTBACK; |
1331 | |
1332 | POPLOOP2(); /* Stack values are safe: release loop vars ... */ |
1333 | curpm = newpm; /* ... and pop $1 et al */ |
1334 | |
a0d0e21e |
1335 | LEAVE; |
1336 | LEAVE; |
1337 | |
f86702cc |
1338 | return NORMAL; |
a0d0e21e |
1339 | } |
1340 | |
1341 | PP(pp_return) |
1342 | { |
1343 | dSP; dMARK; |
1344 | I32 cxix; |
1345 | register CONTEXT *cx; |
f86702cc |
1346 | struct block_sub cxsub; |
1347 | bool popsub2 = FALSE; |
a0d0e21e |
1348 | I32 gimme; |
1349 | SV **newsp; |
1350 | PMOP *newpm; |
1351 | I32 optype = 0; |
1352 | |
1ce6579f |
1353 | if (curstack == sortstack) { |
a0d0e21e |
1354 | if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) < sortcxix) { |
16d20bd9 |
1355 | if (cxstack_ix > sortcxix) |
1356 | dounwind(sortcxix); |
1ce6579f |
1357 | AvARRAY(curstack)[1] = *SP; |
a0d0e21e |
1358 | stack_sp = stack_base + 1; |
1359 | return 0; |
1360 | } |
1361 | } |
1362 | |
1363 | cxix = dopoptosub(cxstack_ix); |
1364 | if (cxix < 0) |
1365 | DIE("Can't return outside a subroutine"); |
1366 | if (cxix < cxstack_ix) |
1367 | dounwind(cxix); |
1368 | |
1369 | POPBLOCK(cx,newpm); |
1370 | switch (cx->cx_type) { |
1371 | case CXt_SUB: |
f86702cc |
1372 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1373 | popsub2 = TRUE; |
a0d0e21e |
1374 | break; |
1375 | case CXt_EVAL: |
1376 | POPEVAL(cx); |
748a9306 |
1377 | if (optype == OP_REQUIRE && |
1378 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) |
1379 | { |
54310121 |
1380 | /* Unassume the success we assumed earlier. */ |
748a9306 |
1381 | char *name = cx->blk_eval.old_name; |
1382 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
1383 | DIE("%s did not return a true value", name); |
1384 | } |
a0d0e21e |
1385 | break; |
1386 | default: |
1387 | DIE("panic: return"); |
a0d0e21e |
1388 | } |
1389 | |
1390 | if (gimme == G_SCALAR) { |
1391 | if (MARK < SP) |
f86702cc |
1392 | *++newsp = (popsub2 && SvTEMP(*SP)) |
1393 | ? *SP : sv_mortalcopy(*SP); |
a0d0e21e |
1394 | else |
1395 | *++newsp = &sv_undef; |
a0d0e21e |
1396 | } |
54310121 |
1397 | else if (gimme == G_ARRAY) { |
f86702cc |
1398 | while (++MARK <= SP) |
1399 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
1400 | ? *MARK : sv_mortalcopy(*MARK); |
a0d0e21e |
1401 | } |
a0d0e21e |
1402 | stack_sp = newsp; |
1403 | |
f86702cc |
1404 | /* Stack values are safe: */ |
1405 | if (popsub2) { |
1406 | POPSUB2(); /* release CV and @_ ... */ |
1407 | } |
1408 | curpm = newpm; /* ... and pop $1 et al */ |
1409 | |
a0d0e21e |
1410 | LEAVE; |
1411 | return pop_return(); |
1412 | } |
1413 | |
1414 | PP(pp_last) |
1415 | { |
1416 | dSP; |
1417 | I32 cxix; |
1418 | register CONTEXT *cx; |
f86702cc |
1419 | struct block_loop cxloop; |
1420 | struct block_sub cxsub; |
1421 | I32 pop2 = 0; |
a0d0e21e |
1422 | I32 gimme; |
1423 | I32 optype; |
1424 | OP *nextop; |
1425 | SV **newsp; |
1426 | PMOP *newpm; |
1427 | SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
1428 | |
1429 | if (op->op_flags & OPf_SPECIAL) { |
1430 | cxix = dopoptoloop(cxstack_ix); |
1431 | if (cxix < 0) |
1432 | DIE("Can't \"last\" outside a block"); |
1433 | } |
1434 | else { |
1435 | cxix = dopoptolabel(cPVOP->op_pv); |
1436 | if (cxix < 0) |
1437 | DIE("Label not found for \"last %s\"", cPVOP->op_pv); |
1438 | } |
1439 | if (cxix < cxstack_ix) |
1440 | dounwind(cxix); |
1441 | |
1442 | POPBLOCK(cx,newpm); |
1443 | switch (cx->cx_type) { |
1444 | case CXt_LOOP: |
f86702cc |
1445 | POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */ |
1446 | pop2 = CXt_LOOP; |
4fdae800 |
1447 | nextop = cxloop.last_op->op_next; |
a0d0e21e |
1448 | break; |
f86702cc |
1449 | case CXt_SUB: |
1450 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1451 | pop2 = CXt_SUB; |
a0d0e21e |
1452 | nextop = pop_return(); |
1453 | break; |
f86702cc |
1454 | case CXt_EVAL: |
1455 | POPEVAL(cx); |
a0d0e21e |
1456 | nextop = pop_return(); |
1457 | break; |
1458 | default: |
1459 | DIE("panic: last"); |
a0d0e21e |
1460 | } |
1461 | |
1462 | if (gimme == G_SCALAR) { |
f86702cc |
1463 | if (MARK < SP) |
1464 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) |
1465 | ? *SP : sv_mortalcopy(*SP); |
a0d0e21e |
1466 | else |
1467 | *++newsp = &sv_undef; |
1468 | } |
54310121 |
1469 | else if (gimme == G_ARRAY) { |
f86702cc |
1470 | while (++MARK <= SP) |
1471 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
1472 | ? *MARK : sv_mortalcopy(*MARK); |
1473 | } |
1474 | SP = newsp; |
1475 | PUTBACK; |
1476 | |
1477 | /* Stack values are safe: */ |
1478 | switch (pop2) { |
1479 | case CXt_LOOP: |
1480 | POPLOOP2(); /* release loop vars ... */ |
4fdae800 |
1481 | LEAVE; |
f86702cc |
1482 | break; |
1483 | case CXt_SUB: |
1484 | POPSUB2(); /* release CV and @_ ... */ |
1485 | break; |
a0d0e21e |
1486 | } |
f86702cc |
1487 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1488 | |
1489 | LEAVE; |
f86702cc |
1490 | return nextop; |
a0d0e21e |
1491 | } |
1492 | |
1493 | PP(pp_next) |
1494 | { |
1495 | I32 cxix; |
1496 | register CONTEXT *cx; |
1497 | I32 oldsave; |
1498 | |
1499 | if (op->op_flags & OPf_SPECIAL) { |
1500 | cxix = dopoptoloop(cxstack_ix); |
1501 | if (cxix < 0) |
1502 | DIE("Can't \"next\" outside a block"); |
1503 | } |
1504 | else { |
1505 | cxix = dopoptolabel(cPVOP->op_pv); |
1506 | if (cxix < 0) |
1507 | DIE("Label not found for \"next %s\"", cPVOP->op_pv); |
1508 | } |
1509 | if (cxix < cxstack_ix) |
1510 | dounwind(cxix); |
1511 | |
1512 | TOPBLOCK(cx); |
1513 | oldsave = scopestack[scopestack_ix - 1]; |
1514 | LEAVE_SCOPE(oldsave); |
1515 | return cx->blk_loop.next_op; |
1516 | } |
1517 | |
1518 | PP(pp_redo) |
1519 | { |
1520 | I32 cxix; |
1521 | register CONTEXT *cx; |
1522 | I32 oldsave; |
1523 | |
1524 | if (op->op_flags & OPf_SPECIAL) { |
1525 | cxix = dopoptoloop(cxstack_ix); |
1526 | if (cxix < 0) |
1527 | DIE("Can't \"redo\" outside a block"); |
1528 | } |
1529 | else { |
1530 | cxix = dopoptolabel(cPVOP->op_pv); |
1531 | if (cxix < 0) |
1532 | DIE("Label not found for \"redo %s\"", cPVOP->op_pv); |
1533 | } |
1534 | if (cxix < cxstack_ix) |
1535 | dounwind(cxix); |
1536 | |
1537 | TOPBLOCK(cx); |
1538 | oldsave = scopestack[scopestack_ix - 1]; |
1539 | LEAVE_SCOPE(oldsave); |
1540 | return cx->blk_loop.redo_op; |
1541 | } |
1542 | |
1543 | static OP* lastgotoprobe; |
1544 | |
1545 | static OP * |
1546 | dofindlabel(op,label,opstack) |
1547 | OP *op; |
1548 | char *label; |
1549 | OP **opstack; |
1550 | { |
1551 | OP *kid; |
1552 | OP **ops = opstack; |
1553 | |
1554 | if (op->op_type == OP_LEAVE || |
1555 | op->op_type == OP_SCOPE || |
1556 | op->op_type == OP_LEAVELOOP || |
1557 | op->op_type == OP_LEAVETRY) |
1558 | *ops++ = cUNOP->op_first; |
1559 | *ops = 0; |
1560 | if (op->op_flags & OPf_KIDS) { |
1561 | /* First try all the kids at this level, since that's likeliest. */ |
1562 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1563 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
1564 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) |
1565 | return kid; |
1566 | } |
1567 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1568 | if (kid == lastgotoprobe) |
1569 | continue; |
1570 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
1571 | if (ops > opstack && |
1572 | (ops[-1]->op_type == OP_NEXTSTATE || |
1573 | ops[-1]->op_type == OP_DBSTATE)) |
1574 | *ops = kid; |
1575 | else |
1576 | *ops++ = kid; |
1577 | } |
1578 | if (op = dofindlabel(kid,label,ops)) |
1579 | return op; |
1580 | } |
1581 | } |
1582 | *ops = 0; |
1583 | return 0; |
1584 | } |
1585 | |
1586 | PP(pp_dump) |
1587 | { |
1588 | return pp_goto(ARGS); |
1589 | /*NOTREACHED*/ |
1590 | } |
1591 | |
1592 | PP(pp_goto) |
1593 | { |
1594 | dSP; |
1595 | OP *retop = 0; |
1596 | I32 ix; |
1597 | register CONTEXT *cx; |
1598 | OP *enterops[64]; |
1599 | char *label; |
1600 | int do_dump = (op->op_type == OP_DUMP); |
1601 | |
1602 | label = 0; |
1603 | if (op->op_flags & OPf_STACKED) { |
1604 | SV *sv = POPs; |
1605 | |
1606 | /* This egregious kludge implements goto &subroutine */ |
1607 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { |
1608 | I32 cxix; |
1609 | register CONTEXT *cx; |
1610 | CV* cv = (CV*)SvRV(sv); |
1611 | SV** mark; |
1612 | I32 items = 0; |
1613 | I32 oldsave; |
1614 | |
4aa0a1f7 |
1615 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1616 | if (CvGV(cv)) { |
1617 | SV *tmpstr = sv_newmortal(); |
e5cf08de |
1618 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
4aa0a1f7 |
1619 | DIE("Goto undefined subroutine &%s",SvPVX(tmpstr)); |
1620 | } |
1621 | DIE("Goto undefined subroutine"); |
1622 | } |
1623 | |
a0d0e21e |
1624 | /* First do some returnish stuff. */ |
1625 | cxix = dopoptosub(cxstack_ix); |
1626 | if (cxix < 0) |
1627 | DIE("Can't goto subroutine outside a subroutine"); |
1628 | if (cxix < cxstack_ix) |
1629 | dounwind(cxix); |
1630 | TOPBLOCK(cx); |
1631 | mark = stack_sp; |
1632 | if (cx->blk_sub.hasargs) { /* put @_ back onto stack */ |
1633 | AV* av = cx->blk_sub.argarray; |
1634 | |
1635 | items = AvFILL(av) + 1; |
1ce6579f |
1636 | stack_sp++; |
1637 | EXTEND(stack_sp, items); /* @_ could have been extended. */ |
1638 | Copy(AvARRAY(av), stack_sp, items, SV*); |
a0d0e21e |
1639 | stack_sp += items; |
2c05e328 |
1640 | SvREFCNT_dec(GvAV(defgv)); |
a0d0e21e |
1641 | GvAV(defgv) = cx->blk_sub.savearray; |
a0d0e21e |
1642 | AvREAL_off(av); |
4633a7c4 |
1643 | av_clear(av); |
a0d0e21e |
1644 | } |
1645 | if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
1646 | SvREFCNT_dec(cx->blk_sub.cv); |
1647 | oldsave = scopestack[scopestack_ix - 1]; |
1648 | LEAVE_SCOPE(oldsave); |
1649 | |
1650 | /* Now do some callish stuff. */ |
1651 | SAVETMPS; |
1652 | if (CvXSUB(cv)) { |
1653 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1654 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1655 | while (sp > mark) { |
1656 | sp[1] = sp[0]; |
1657 | sp--; |
1658 | } |
ecfc5424 |
1659 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1660 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1661 | mark - stack_base + 1, |
1662 | items); |
a0d0e21e |
1663 | sp = stack_base + items; |
1664 | } |
1665 | else { |
1ce6579f |
1666 | stack_sp--; /* There is no cv arg. */ |
a0d0e21e |
1667 | (void)(*CvXSUB(cv))(cv); |
1668 | } |
1669 | LEAVE; |
1670 | return pop_return(); |
1671 | } |
1672 | else { |
1673 | AV* padlist = CvPADLIST(cv); |
1674 | SV** svp = AvARRAY(padlist); |
1675 | cx->blk_sub.cv = cv; |
1676 | cx->blk_sub.olddepth = CvDEPTH(cv); |
1677 | CvDEPTH(cv)++; |
1678 | if (CvDEPTH(cv) < 2) |
1679 | (void)SvREFCNT_inc(cv); |
1680 | else { /* save temporaries on recursion? */ |
1681 | if (CvDEPTH(cv) == 100 && dowarn) |
44a8e56a |
1682 | sub_crush_depth(cv); |
a0d0e21e |
1683 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1684 | AV *newpad = newAV(); |
4aa0a1f7 |
1685 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1686 | I32 ix = AvFILL((AV*)svp[1]); |
1687 | svp = AvARRAY(svp[0]); |
748a9306 |
1688 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1689 | if (svp[ix] != &sv_undef) { |
748a9306 |
1690 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1691 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) |
1692 | || *name == '&') |
1693 | { |
1694 | /* outer lexical or anon code */ |
748a9306 |
1695 | av_store(newpad, ix, |
4aa0a1f7 |
1696 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 |
1697 | } |
1698 | else { /* our own lexical */ |
1699 | if (*name == '@') |
1700 | av_store(newpad, ix, sv = (SV*)newAV()); |
1701 | else if (*name == '%') |
1702 | av_store(newpad, ix, sv = (SV*)newHV()); |
1703 | else |
1704 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1705 | SvPADMY_on(sv); |
1706 | } |
a0d0e21e |
1707 | } |
1708 | else { |
748a9306 |
1709 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1710 | SvPADTMP_on(sv); |
1711 | } |
1712 | } |
1713 | if (cx->blk_sub.hasargs) { |
1714 | AV* av = newAV(); |
1715 | av_extend(av, 0); |
1716 | av_store(newpad, 0, (SV*)av); |
1717 | AvFLAGS(av) = AVf_REIFY; |
1718 | } |
1719 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1720 | AvFILL(padlist) = CvDEPTH(cv); |
1721 | svp = AvARRAY(padlist); |
1722 | } |
1723 | } |
1724 | SAVESPTR(curpad); |
1725 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1726 | if (cx->blk_sub.hasargs) { |
1727 | AV* av = (AV*)curpad[0]; |
1728 | SV** ary; |
1729 | |
1730 | cx->blk_sub.savearray = GvAV(defgv); |
1731 | cx->blk_sub.argarray = av; |
2c05e328 |
1732 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
a0d0e21e |
1733 | ++mark; |
1734 | |
1735 | if (items >= AvMAX(av) + 1) { |
1736 | ary = AvALLOC(av); |
1737 | if (AvARRAY(av) != ary) { |
1738 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1739 | SvPVX(av) = (char*)ary; |
1740 | } |
1741 | if (items >= AvMAX(av) + 1) { |
1742 | AvMAX(av) = items - 1; |
1743 | Renew(ary,items+1,SV*); |
1744 | AvALLOC(av) = ary; |
1745 | SvPVX(av) = (char*)ary; |
1746 | } |
1747 | } |
1748 | Copy(mark,AvARRAY(av),items,SV*); |
1749 | AvFILL(av) = items - 1; |
1750 | |
1751 | while (items--) { |
1752 | if (*mark) |
1753 | SvTEMP_off(*mark); |
1754 | mark++; |
1755 | } |
1756 | } |
f967eb5f |
1757 | if (perldb && curstash != debstash) { |
44a8e56a |
1758 | /* |
1759 | * We do not care about using sv to call CV; |
1760 | * it's for informational purposes only. |
1761 | */ |
1ce6579f |
1762 | SV *sv = GvSV(DBsub); |
1763 | save_item(sv); |
e5cf08de |
1764 | gv_efullname3(sv, CvGV(cv), Nullch); |
1ce6579f |
1765 | } |
a0d0e21e |
1766 | RETURNOP(CvSTART(cv)); |
1767 | } |
1768 | } |
1769 | else |
1770 | label = SvPV(sv,na); |
1771 | } |
1772 | else if (op->op_flags & OPf_SPECIAL) { |
1773 | if (! do_dump) |
1774 | DIE("goto must have label"); |
1775 | } |
1776 | else |
1777 | label = cPVOP->op_pv; |
1778 | |
1779 | if (label && *label) { |
1780 | OP *gotoprobe = 0; |
1781 | |
1782 | /* find label */ |
1783 | |
1784 | lastgotoprobe = 0; |
1785 | *enterops = 0; |
1786 | for (ix = cxstack_ix; ix >= 0; ix--) { |
1787 | cx = &cxstack[ix]; |
1788 | switch (cx->cx_type) { |
1789 | case CXt_SUB: |
1790 | gotoprobe = CvROOT(cx->blk_sub.cv); |
1791 | break; |
1792 | case CXt_EVAL: |
1793 | gotoprobe = eval_root; /* XXX not good for nested eval */ |
1794 | break; |
1795 | case CXt_LOOP: |
1796 | gotoprobe = cx->blk_oldcop->op_sibling; |
1797 | break; |
1798 | case CXt_SUBST: |
1799 | continue; |
1800 | case CXt_BLOCK: |
1801 | if (ix) |
1802 | gotoprobe = cx->blk_oldcop->op_sibling; |
1803 | else |
1804 | gotoprobe = main_root; |
1805 | break; |
0a753a76 |
1806 | case CXt_NULL: |
1807 | DIE("Can't \"goto\" outside a block"); |
a0d0e21e |
1808 | default: |
1809 | if (ix) |
1810 | DIE("panic: goto"); |
68dc0745 |
1811 | gotoprobe = main_root; |
a0d0e21e |
1812 | break; |
1813 | } |
1814 | retop = dofindlabel(gotoprobe, label, enterops); |
1815 | if (retop) |
1816 | break; |
1817 | lastgotoprobe = gotoprobe; |
1818 | } |
1819 | if (!retop) |
1820 | DIE("Can't find label %s", label); |
1821 | |
1822 | /* pop unwanted frames */ |
1823 | |
1824 | if (ix < cxstack_ix) { |
1825 | I32 oldsave; |
1826 | |
1827 | if (ix < 0) |
1828 | ix = 0; |
1829 | dounwind(ix); |
1830 | TOPBLOCK(cx); |
1831 | oldsave = scopestack[scopestack_ix]; |
1832 | LEAVE_SCOPE(oldsave); |
1833 | } |
1834 | |
1835 | /* push wanted frames */ |
1836 | |
748a9306 |
1837 | if (*enterops && enterops[1]) { |
a0d0e21e |
1838 | OP *oldop = op; |
748a9306 |
1839 | for (ix = 1; enterops[ix]; ix++) { |
a0d0e21e |
1840 | op = enterops[ix]; |
1841 | (*op->op_ppaddr)(); |
1842 | } |
1843 | op = oldop; |
1844 | } |
1845 | } |
1846 | |
1847 | if (do_dump) { |
a5f75d66 |
1848 | #ifdef VMS |
1849 | if (!retop) retop = main_start; |
1850 | #endif |
a0d0e21e |
1851 | restartop = retop; |
1852 | do_undump = TRUE; |
1853 | |
1854 | my_unexec(); |
1855 | |
1856 | restartop = 0; /* hmm, must be GNU unexec().. */ |
1857 | do_undump = FALSE; |
1858 | } |
1859 | |
1ce6579f |
1860 | if (curstack == signalstack) { |
748a9306 |
1861 | restartop = retop; |
54310121 |
1862 | JMPENV_JUMP(3); |
748a9306 |
1863 | } |
1864 | |
a0d0e21e |
1865 | RETURNOP(retop); |
1866 | } |
1867 | |
1868 | PP(pp_exit) |
1869 | { |
1870 | dSP; |
1871 | I32 anum; |
1872 | |
1873 | if (MAXARG < 1) |
1874 | anum = 0; |
ff0cee69 |
1875 | else { |
a0d0e21e |
1876 | anum = SvIVx(POPs); |
ff0cee69 |
1877 | #ifdef VMSISH_EXIT |
1878 | if (anum == 1 && VMSISH_EXIT) |
1879 | anum = 0; |
1880 | #endif |
1881 | } |
a0d0e21e |
1882 | my_exit(anum); |
1883 | PUSHs(&sv_undef); |
1884 | RETURN; |
1885 | } |
1886 | |
1887 | #ifdef NOTYET |
1888 | PP(pp_nswitch) |
1889 | { |
1890 | dSP; |
1891 | double value = SvNVx(GvSV(cCOP->cop_gv)); |
1892 | register I32 match = I_32(value); |
1893 | |
1894 | if (value < 0.0) { |
1895 | if (((double)match) > value) |
1896 | --match; /* was fractional--truncate other way */ |
1897 | } |
1898 | match -= cCOP->uop.scop.scop_offset; |
1899 | if (match < 0) |
1900 | match = 0; |
1901 | else if (match > cCOP->uop.scop.scop_max) |
1902 | match = cCOP->uop.scop.scop_max; |
1903 | op = cCOP->uop.scop.scop_next[match]; |
1904 | RETURNOP(op); |
1905 | } |
1906 | |
1907 | PP(pp_cswitch) |
1908 | { |
1909 | dSP; |
1910 | register I32 match; |
1911 | |
1912 | if (multiline) |
1913 | op = op->op_next; /* can't assume anything */ |
1914 | else { |
1915 | match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255; |
1916 | match -= cCOP->uop.scop.scop_offset; |
1917 | if (match < 0) |
1918 | match = 0; |
1919 | else if (match > cCOP->uop.scop.scop_max) |
1920 | match = cCOP->uop.scop.scop_max; |
1921 | op = cCOP->uop.scop.scop_next[match]; |
1922 | } |
1923 | RETURNOP(op); |
1924 | } |
1925 | #endif |
1926 | |
1927 | /* Eval. */ |
1928 | |
1929 | static void |
1930 | save_lines(array, sv) |
1931 | AV *array; |
1932 | SV *sv; |
1933 | { |
1934 | register char *s = SvPVX(sv); |
1935 | register char *send = SvPVX(sv) + SvCUR(sv); |
1936 | register char *t; |
1937 | register I32 line = 1; |
1938 | |
1939 | while (s && s < send) { |
1940 | SV *tmpstr = NEWSV(85,0); |
1941 | |
1942 | sv_upgrade(tmpstr, SVt_PVMG); |
1943 | t = strchr(s, '\n'); |
1944 | if (t) |
1945 | t++; |
1946 | else |
1947 | t = send; |
1948 | |
1949 | sv_setpvn(tmpstr, s, t - s); |
1950 | av_store(array, line++, tmpstr); |
1951 | s = t; |
1952 | } |
1953 | } |
1954 | |
1955 | static OP * |
1e422769 |
1956 | docatch(o) |
1957 | OP *o; |
1958 | { |
1959 | int ret; |
035902c7 |
1960 | I32 oldrunlevel = runlevel; |
1e422769 |
1961 | OP *oldop = op; |
54310121 |
1962 | dJMPENV; |
1e422769 |
1963 | |
1964 | op = o; |
1e422769 |
1965 | #ifdef DEBUGGING |
54310121 |
1966 | assert(CATCH_GET == TRUE); |
035902c7 |
1967 | DEBUG_l(deb("(Setting up local jumplevel, runlevel = %ld)\n", (long)runlevel+1)); |
1e422769 |
1968 | #endif |
22921e25 |
1969 | JMPENV_PUSH(ret); |
1970 | switch (ret) { |
1e422769 |
1971 | default: /* topmost level handles it */ |
54310121 |
1972 | JMPENV_POP; |
1e422769 |
1973 | runlevel = oldrunlevel; |
1e422769 |
1974 | op = oldop; |
54310121 |
1975 | JMPENV_JUMP(ret); |
1e422769 |
1976 | /* NOTREACHED */ |
1977 | case 3: |
1978 | if (!restartop) { |
1979 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
1980 | break; |
1981 | } |
1e422769 |
1982 | op = restartop; |
1983 | restartop = 0; |
1984 | /* FALL THROUGH */ |
1985 | case 0: |
1986 | runops(); |
1987 | break; |
1988 | } |
54310121 |
1989 | JMPENV_POP; |
1e422769 |
1990 | runlevel = oldrunlevel; |
1e422769 |
1991 | op = oldop; |
1992 | return Nullop; |
1993 | } |
1994 | |
1995 | static OP * |
a0d0e21e |
1996 | doeval(gimme) |
1997 | int gimme; |
1998 | { |
1999 | dSP; |
2000 | OP *saveop = op; |
2001 | HV *newstash; |
ff3ff8d1 |
2002 | CV *caller; |
748a9306 |
2003 | AV* comppadlist; |
a0d0e21e |
2004 | |
2005 | in_eval = 1; |
2006 | |
1ce6579f |
2007 | PUSHMARK(SP); |
2008 | |
a0d0e21e |
2009 | /* set up a scratch pad */ |
2010 | |
55497cff |
2011 | SAVEI32(padix); |
a0d0e21e |
2012 | SAVESPTR(curpad); |
2013 | SAVESPTR(comppad); |
2014 | SAVESPTR(comppad_name); |
55497cff |
2015 | SAVEI32(comppad_name_fill); |
2016 | SAVEI32(min_intro_pending); |
2017 | SAVEI32(max_intro_pending); |
748a9306 |
2018 | |
ff3ff8d1 |
2019 | caller = compcv; |
748a9306 |
2020 | SAVESPTR(compcv); |
2021 | compcv = (CV*)NEWSV(1104,0); |
2022 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c |
2023 | CvUNIQUE_on(compcv); |
748a9306 |
2024 | |
a0d0e21e |
2025 | comppad = newAV(); |
2026 | comppad_name = newAV(); |
2027 | comppad_name_fill = 0; |
2028 | min_intro_pending = 0; |
2029 | av_push(comppad, Nullsv); |
2030 | curpad = AvARRAY(comppad); |
2031 | padix = 0; |
2032 | |
748a9306 |
2033 | comppadlist = newAV(); |
2034 | AvREAL_off(comppadlist); |
8e07c86e |
2035 | av_store(comppadlist, 0, (SV*)comppad_name); |
2036 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
2037 | CvPADLIST(compcv) = comppadlist; |
2c05e328 |
2038 | |
2039 | if (saveop->op_type != OP_REQUIRE) |
2040 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(caller); |
07055b4c |
2041 | |
8e07c86e |
2042 | SAVEFREESV(compcv); |
748a9306 |
2043 | |
a0d0e21e |
2044 | /* make sure we compile in the right package */ |
2045 | |
2046 | newstash = curcop->cop_stash; |
2047 | if (curstash != newstash) { |
2048 | SAVESPTR(curstash); |
2049 | curstash = newstash; |
2050 | } |
2051 | SAVESPTR(beginav); |
2052 | beginav = newAV(); |
2053 | SAVEFREESV(beginav); |
2054 | |
2055 | /* try to compile it */ |
2056 | |
2057 | eval_root = Nullop; |
2058 | error_count = 0; |
2059 | curcop = &compiling; |
2060 | curcop->cop_arybase = 0; |
c07a80fd |
2061 | SvREFCNT_dec(rs); |
2062 | rs = newSVpv("\n", 1); |
1ce6579f |
2063 | if (saveop->op_flags & OPf_SPECIAL) |
2064 | in_eval |= 4; |
2065 | else |
2066 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2067 | if (yyparse() || error_count || !eval_root) { |
2068 | SV **newsp; |
2069 | I32 gimme; |
2070 | CONTEXT *cx; |
2071 | I32 optype; |
2072 | |
2073 | op = saveop; |
2074 | if (eval_root) { |
2075 | op_free(eval_root); |
2076 | eval_root = Nullop; |
2077 | } |
1ce6579f |
2078 | SP = stack_base + POPMARK; /* pop original mark */ |
a0d0e21e |
2079 | POPBLOCK(cx,curpm); |
2080 | POPEVAL(cx); |
2081 | pop_return(); |
2082 | lex_end(); |
2083 | LEAVE; |
2084 | if (optype == OP_REQUIRE) |
4633a7c4 |
2085 | DIE("%s", SvPVx(GvSV(errgv), na)); |
c07a80fd |
2086 | SvREFCNT_dec(rs); |
2087 | rs = SvREFCNT_inc(nrs); |
a0d0e21e |
2088 | RETPUSHUNDEF; |
2089 | } |
c07a80fd |
2090 | SvREFCNT_dec(rs); |
2091 | rs = SvREFCNT_inc(nrs); |
a0d0e21e |
2092 | compiling.cop_line = 0; |
a0d0e21e |
2093 | SAVEFREEOP(eval_root); |
54310121 |
2094 | if (gimme & G_VOID) |
2095 | scalarvoid(eval_root); |
2096 | else if (gimme & G_ARRAY) |
a0d0e21e |
2097 | list(eval_root); |
2098 | else |
2099 | scalar(eval_root); |
2100 | |
2101 | DEBUG_x(dump_eval()); |
2102 | |
55497cff |
2103 | /* Register with debugger: */ |
55497cff |
2104 | if (perldb && saveop->op_type == OP_REQUIRE) { |
2105 | CV *cv = perl_get_cv("DB::postponed", FALSE); |
55497cff |
2106 | if (cv) { |
2107 | dSP; |
2108 | PUSHMARK(sp); |
2109 | XPUSHs((SV*)compiling.cop_filegv); |
2110 | PUTBACK; |
2111 | perl_call_sv((SV*)cv, G_DISCARD); |
2112 | } |
2113 | } |
2114 | |
a0d0e21e |
2115 | /* compiled okay, so do it */ |
2116 | |
4fdae800 |
2117 | CvDEPTH(compcv) = 1; |
2118 | |
1ce6579f |
2119 | SP = stack_base + POPMARK; /* pop original mark */ |
a0d0e21e |
2120 | RETURNOP(eval_start); |
2121 | } |
2122 | |
2123 | PP(pp_require) |
2124 | { |
2125 | dSP; |
2126 | register CONTEXT *cx; |
2127 | SV *sv; |
2128 | char *name; |
2129 | char *tmpname; |
2130 | SV** svp; |
2131 | I32 gimme = G_SCALAR; |
760ac839 |
2132 | PerlIO *tryrsfp = 0; |
a0d0e21e |
2133 | |
2134 | sv = POPs; |
4633a7c4 |
2135 | if (SvNIOKp(sv) && !SvPOKp(sv)) { |
36477c24 |
2136 | SET_NUMERIC_STANDARD(); |
a5f75d66 |
2137 | if (atof(patchlevel) + 0.00000999 < SvNV(sv)) |
2138 | DIE("Perl %s required--this is only version %s, stopped", |
2139 | SvPV(sv,na),patchlevel); |
a0d0e21e |
2140 | RETPUSHYES; |
2141 | } |
2142 | name = SvPV(sv, na); |
2143 | if (!*name) |
2144 | DIE("Null filename used"); |
4633a7c4 |
2145 | TAINT_PROPER("require"); |
a0d0e21e |
2146 | if (op->op_type == OP_REQUIRE && |
2147 | (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) && |
2148 | *svp != &sv_undef) |
2149 | RETPUSHYES; |
2150 | |
2151 | /* prepare to compile file */ |
2152 | |
2153 | tmpname = savepv(name); |
2154 | if (*tmpname == '/' || |
2155 | (*tmpname == '.' && |
2156 | (tmpname[1] == '/' || |
748a9306 |
2157 | (tmpname[1] == '.' && tmpname[2] == '/'))) |
4633a7c4 |
2158 | #ifdef DOSISH |
2159 | || (tmpname[0] && tmpname[1] == ':') |
2160 | #endif |
748a9306 |
2161 | #ifdef VMS |
bbce6d69 |
2162 | || (strchr(tmpname,':') || ((*tmpname == '[' || *tmpname == '<') && |
2163 | (isALNUM(tmpname[1]) || strchr("$-_]>",tmpname[1])))) |
748a9306 |
2164 | #endif |
2165 | ) |
a0d0e21e |
2166 | { |
760ac839 |
2167 | tryrsfp = PerlIO_open(tmpname,"r"); |
a0d0e21e |
2168 | } |
2169 | else { |
2170 | AV *ar = GvAVn(incgv); |
2171 | I32 i; |
748a9306 |
2172 | #ifdef VMS |
bbce6d69 |
2173 | char unixified[256]; |
2174 | if (tounixspec_ts(tmpname,unixified) != NULL) |
2175 | for (i = 0; i <= AvFILL(ar); i++) { |
748a9306 |
2176 | if (tounixpath_ts(SvPVx(*av_fetch(ar, i, TRUE), na),buf) == NULL) |
4633a7c4 |
2177 | continue; |
bbce6d69 |
2178 | strcat(buf,unixified); |
748a9306 |
2179 | #else |
bbce6d69 |
2180 | for (i = 0; i <= AvFILL(ar); i++) { |
a0d0e21e |
2181 | (void)sprintf(buf, "%s/%s", |
2182 | SvPVx(*av_fetch(ar, i, TRUE), na), name); |
748a9306 |
2183 | #endif |
760ac839 |
2184 | tryrsfp = PerlIO_open(buf, "r"); |
a0d0e21e |
2185 | if (tryrsfp) { |
2186 | char *s = buf; |
2187 | |
2188 | if (*s == '.' && s[1] == '/') |
2189 | s += 2; |
2190 | Safefree(tmpname); |
2191 | tmpname = savepv(s); |
2192 | break; |
2193 | } |
2194 | } |
2195 | } |
2196 | SAVESPTR(compiling.cop_filegv); |
2197 | compiling.cop_filegv = gv_fetchfile(tmpname); |
2198 | Safefree(tmpname); |
2199 | tmpname = Nullch; |
2200 | if (!tryrsfp) { |
2201 | if (op->op_type == OP_REQUIRE) { |
2202 | sprintf(tokenbuf,"Can't locate %s in @INC", name); |
2203 | if (instr(tokenbuf,".h ")) |
2204 | strcat(tokenbuf," (change .h to .ph maybe?)"); |
2205 | if (instr(tokenbuf,".ph ")) |
2206 | strcat(tokenbuf," (did you run h2ph?)"); |
2207 | DIE("%s",tokenbuf); |
2208 | } |
2209 | |
2210 | RETPUSHUNDEF; |
2211 | } |
2212 | |
2213 | /* Assume success here to prevent recursive requirement. */ |
2214 | (void)hv_store(GvHVn(incgv), name, strlen(name), |
2215 | newSVsv(GvSV(compiling.cop_filegv)), 0 ); |
2216 | |
2217 | ENTER; |
2218 | SAVETMPS; |
2219 | lex_start(sv_2mortal(newSVpv("",0))); |
e50aee73 |
2220 | if (rsfp_filters){ |
2221 | save_aptr(&rsfp_filters); |
2222 | rsfp_filters = NULL; |
2223 | } |
2224 | |
a0d0e21e |
2225 | rsfp = tryrsfp; |
2226 | name = savepv(name); |
2227 | SAVEFREEPV(name); |
2228 | SAVEI32(hints); |
2229 | hints = 0; |
2230 | |
2231 | /* switch to eval mode */ |
2232 | |
2233 | push_return(op->op_next); |
2234 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2235 | PUSHEVAL(cx, name, compiling.cop_filegv); |
2236 | |
2237 | compiling.cop_line = 0; |
2238 | |
2239 | PUTBACK; |
1e422769 |
2240 | return DOCATCH(doeval(G_SCALAR)); |
a0d0e21e |
2241 | } |
2242 | |
2243 | PP(pp_dofile) |
2244 | { |
2245 | return pp_require(ARGS); |
2246 | } |
2247 | |
2248 | PP(pp_entereval) |
2249 | { |
2250 | dSP; |
2251 | register CONTEXT *cx; |
2252 | dPOPss; |
54310121 |
2253 | I32 gimme = GIMME_V, was = sub_generation; |
55497cff |
2254 | char tmpbuf[32], *safestr; |
a0d0e21e |
2255 | STRLEN len; |
55497cff |
2256 | OP *ret; |
a0d0e21e |
2257 | |
2258 | if (!SvPV(sv,len) || !len) |
2259 | RETPUSHUNDEF; |
748a9306 |
2260 | TAINT_PROPER("eval"); |
a0d0e21e |
2261 | |
2262 | ENTER; |
a0d0e21e |
2263 | lex_start(sv); |
748a9306 |
2264 | SAVETMPS; |
a0d0e21e |
2265 | |
2266 | /* switch to eval mode */ |
2267 | |
748a9306 |
2268 | SAVESPTR(compiling.cop_filegv); |
ff0cee69 |
2269 | sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++evalseq); |
a0d0e21e |
2270 | compiling.cop_filegv = gv_fetchfile(tmpbuf+2); |
2271 | compiling.cop_line = 1; |
55497cff |
2272 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2273 | deleting the eval's FILEGV from the stash before gv_check() runs |
2274 | (i.e. before run-time proper). To work around the coredump that |
2275 | ensues, we always turn GvMULTI_on for any globals that were |
2276 | introduced within evals. See force_ident(). GSAR 96-10-12 */ |
2277 | safestr = savepv(tmpbuf); |
2278 | SAVEDELETE(defstash, safestr, strlen(safestr)); |
a0d0e21e |
2279 | SAVEI32(hints); |
2280 | hints = op->op_targ; |
2281 | |
2282 | push_return(op->op_next); |
2283 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2284 | PUSHEVAL(cx, 0, compiling.cop_filegv); |
2285 | |
2286 | /* prepare to compile string */ |
2287 | |
2288 | if (perldb && curstash != debstash) |
2289 | save_lines(GvAV(compiling.cop_filegv), linestr); |
2290 | PUTBACK; |
55497cff |
2291 | ret = doeval(gimme); |
2292 | if (perldb && was != sub_generation) { /* Some subs defined here. */ |
2293 | strcpy(safestr, "_<(eval )"); /* Anything fake and short. */ |
2294 | } |
1e422769 |
2295 | return DOCATCH(ret); |
a0d0e21e |
2296 | } |
2297 | |
2298 | PP(pp_leaveeval) |
2299 | { |
2300 | dSP; |
2301 | register SV **mark; |
2302 | SV **newsp; |
2303 | PMOP *newpm; |
2304 | I32 gimme; |
2305 | register CONTEXT *cx; |
2306 | OP *retop; |
760ac839 |
2307 | U8 save_flags = op -> op_flags; |
a0d0e21e |
2308 | I32 optype; |
2309 | |
2310 | POPBLOCK(cx,newpm); |
2311 | POPEVAL(cx); |
2312 | retop = pop_return(); |
2313 | |
54310121 |
2314 | if (gimme == G_VOID) |
2315 | MARK = newsp; |
2316 | else if (gimme == G_SCALAR) { |
2317 | MARK = newsp + 1; |
2318 | if (MARK <= SP) { |
2319 | if (SvFLAGS(TOPs) & SVs_TEMP) |
2320 | *MARK = TOPs; |
2321 | else |
2322 | *MARK = sv_mortalcopy(TOPs); |
2323 | } |
a0d0e21e |
2324 | else { |
54310121 |
2325 | MEXTEND(mark,0); |
2326 | *MARK = &sv_undef; |
a0d0e21e |
2327 | } |
a0d0e21e |
2328 | } |
2329 | else { |
2330 | for (mark = newsp + 1; mark <= SP; mark++) |
760ac839 |
2331 | if (!(SvFLAGS(*mark) & SVs_TEMP)) |
a0d0e21e |
2332 | *mark = sv_mortalcopy(*mark); |
2333 | /* in case LEAVE wipes old return values */ |
2334 | } |
2335 | curpm = newpm; /* Don't pop $1 et al till now */ |
2336 | |
4fdae800 |
2337 | #ifdef DEBUGGING |
2338 | assert(CvDEPTH(compcv) == 1); |
2339 | #endif |
2340 | CvDEPTH(compcv) = 0; |
2341 | |
1ce6579f |
2342 | if (optype == OP_REQUIRE && |
54310121 |
2343 | !(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) |
2344 | { |
1ce6579f |
2345 | /* Unassume the success we assumed earlier. */ |
54310121 |
2346 | char *name = cx->blk_eval.old_name; |
1ce6579f |
2347 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
2348 | retop = die("%s did not return a true value", name); |
a0d0e21e |
2349 | } |
2350 | |
2351 | lex_end(); |
2352 | LEAVE; |
4fdae800 |
2353 | |
760ac839 |
2354 | if (!(save_flags & OPf_SPECIAL)) |
1ce6579f |
2355 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2356 | |
2357 | RETURNOP(retop); |
2358 | } |
2359 | |
a0d0e21e |
2360 | PP(pp_entertry) |
2361 | { |
2362 | dSP; |
2363 | register CONTEXT *cx; |
54310121 |
2364 | I32 gimme = GIMME_V; |
a0d0e21e |
2365 | |
2366 | ENTER; |
2367 | SAVETMPS; |
2368 | |
2369 | push_return(cLOGOP->op_other->op_next); |
2370 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2371 | PUSHEVAL(cx, 0, 0); |
2372 | eval_root = op; /* Only needed so that goto works right. */ |
2373 | |
2374 | in_eval = 1; |
4633a7c4 |
2375 | sv_setpv(GvSV(errgv),""); |
1e422769 |
2376 | PUTBACK; |
2377 | return DOCATCH(op->op_next); |
a0d0e21e |
2378 | } |
2379 | |
2380 | PP(pp_leavetry) |
2381 | { |
2382 | dSP; |
2383 | register SV **mark; |
2384 | SV **newsp; |
2385 | PMOP *newpm; |
2386 | I32 gimme; |
2387 | register CONTEXT *cx; |
2388 | I32 optype; |
2389 | |
2390 | POPBLOCK(cx,newpm); |
2391 | POPEVAL(cx); |
2392 | pop_return(); |
2393 | |
54310121 |
2394 | if (gimme == G_VOID) |
2395 | SP = newsp; |
2396 | else if (gimme == G_SCALAR) { |
2397 | MARK = newsp + 1; |
2398 | if (MARK <= SP) { |
2399 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
2400 | *MARK = TOPs; |
2401 | else |
2402 | *MARK = sv_mortalcopy(TOPs); |
2403 | } |
a0d0e21e |
2404 | else { |
54310121 |
2405 | MEXTEND(mark,0); |
2406 | *MARK = &sv_undef; |
a0d0e21e |
2407 | } |
2408 | SP = MARK; |
2409 | } |
2410 | else { |
2411 | for (mark = newsp + 1; mark <= SP; mark++) |
760ac839 |
2412 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
a0d0e21e |
2413 | *mark = sv_mortalcopy(*mark); |
2414 | /* in case LEAVE wipes old return values */ |
2415 | } |
2416 | curpm = newpm; /* Don't pop $1 et al till now */ |
2417 | |
2418 | LEAVE; |
4633a7c4 |
2419 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2420 | RETURN; |
2421 | } |
2422 | |
2423 | static void |
2424 | doparseform(sv) |
2425 | SV *sv; |
2426 | { |
2427 | STRLEN len; |
2428 | register char *s = SvPV_force(sv, len); |
2429 | register char *send = s + len; |
2430 | register char *base; |
2431 | register I32 skipspaces = 0; |
2432 | bool noblank; |
2433 | bool repeat; |
2434 | bool postspace = FALSE; |
2435 | U16 *fops; |
2436 | register U16 *fpc; |
2437 | U16 *linepc; |
2438 | register I32 arg; |
2439 | bool ischop; |
2440 | |
55497cff |
2441 | if (len == 0) |
bbce6d69 |
2442 | croak("Null picture in formline"); |
55497cff |
2443 | |
2444 | New(804, fops, (send - s)*3+10, U16); /* Almost certainly too long... */ |
a0d0e21e |
2445 | fpc = fops; |
2446 | |
2447 | if (s < send) { |
2448 | linepc = fpc; |
2449 | *fpc++ = FF_LINEMARK; |
2450 | noblank = repeat = FALSE; |
2451 | base = s; |
2452 | } |
2453 | |
2454 | while (s <= send) { |
2455 | switch (*s++) { |
2456 | default: |
2457 | skipspaces = 0; |
2458 | continue; |
2459 | |
2460 | case '~': |
2461 | if (*s == '~') { |
2462 | repeat = TRUE; |
2463 | *s = ' '; |
2464 | } |
2465 | noblank = TRUE; |
2466 | s[-1] = ' '; |
2467 | /* FALL THROUGH */ |
2468 | case ' ': case '\t': |
2469 | skipspaces++; |
2470 | continue; |
2471 | |
2472 | case '\n': case 0: |
2473 | arg = s - base; |
2474 | skipspaces++; |
2475 | arg -= skipspaces; |
2476 | if (arg) { |
5f05dabc |
2477 | if (postspace) |
a0d0e21e |
2478 | *fpc++ = FF_SPACE; |
a0d0e21e |
2479 | *fpc++ = FF_LITERAL; |
2480 | *fpc++ = arg; |
2481 | } |
5f05dabc |
2482 | postspace = FALSE; |
a0d0e21e |
2483 | if (s <= send) |
2484 | skipspaces--; |
2485 | if (skipspaces) { |
2486 | *fpc++ = FF_SKIP; |
2487 | *fpc++ = skipspaces; |
2488 | } |
2489 | skipspaces = 0; |
2490 | if (s <= send) |
2491 | *fpc++ = FF_NEWLINE; |
2492 | if (noblank) { |
2493 | *fpc++ = FF_BLANK; |
2494 | if (repeat) |
2495 | arg = fpc - linepc + 1; |
2496 | else |
2497 | arg = 0; |
2498 | *fpc++ = arg; |
2499 | } |
2500 | if (s < send) { |
2501 | linepc = fpc; |
2502 | *fpc++ = FF_LINEMARK; |
2503 | noblank = repeat = FALSE; |
2504 | base = s; |
2505 | } |
2506 | else |
2507 | s++; |
2508 | continue; |
2509 | |
2510 | case '@': |
2511 | case '^': |
2512 | ischop = s[-1] == '^'; |
2513 | |
2514 | if (postspace) { |
2515 | *fpc++ = FF_SPACE; |
2516 | postspace = FALSE; |
2517 | } |
2518 | arg = (s - base) - 1; |
2519 | if (arg) { |
2520 | *fpc++ = FF_LITERAL; |
2521 | *fpc++ = arg; |
2522 | } |
2523 | |
2524 | base = s - 1; |
2525 | *fpc++ = FF_FETCH; |
2526 | if (*s == '*') { |
2527 | s++; |
2528 | *fpc++ = 0; |
2529 | *fpc++ = FF_LINEGLOB; |
2530 | } |
2531 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { |
2532 | arg = ischop ? 512 : 0; |
2533 | base = s - 1; |
2534 | while (*s == '#') |
2535 | s++; |
2536 | if (*s == '.') { |
2537 | char *f; |
2538 | s++; |
2539 | f = s; |
2540 | while (*s == '#') |
2541 | s++; |
2542 | arg |= 256 + (s - f); |
2543 | } |
2544 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2545 | *fpc++ = FF_DECIMAL; |
2546 | *fpc++ = arg; |
2547 | } |
2548 | else { |
2549 | I32 prespace = 0; |
2550 | bool ismore = FALSE; |
2551 | |
2552 | if (*s == '>') { |
2553 | while (*++s == '>') ; |
2554 | prespace = FF_SPACE; |
2555 | } |
2556 | else if (*s == '|') { |
2557 | while (*++s == '|') ; |
2558 | prespace = FF_HALFSPACE; |
2559 | postspace = TRUE; |
2560 | } |
2561 | else { |
2562 | if (*s == '<') |
2563 | while (*++s == '<') ; |
2564 | postspace = TRUE; |
2565 | } |
2566 | if (*s == '.' && s[1] == '.' && s[2] == '.') { |
2567 | s += 3; |
2568 | ismore = TRUE; |
2569 | } |
2570 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2571 | |
2572 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; |
2573 | |
2574 | if (prespace) |
2575 | *fpc++ = prespace; |
2576 | *fpc++ = FF_ITEM; |
2577 | if (ismore) |
2578 | *fpc++ = FF_MORE; |
2579 | if (ischop) |
2580 | *fpc++ = FF_CHOP; |
2581 | } |
2582 | base = s; |
2583 | skipspaces = 0; |
2584 | continue; |
2585 | } |
2586 | } |
2587 | *fpc++ = FF_END; |
2588 | |
2589 | arg = fpc - fops; |
2590 | { /* need to jump to the next word */ |
2591 | int z; |
2592 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; |
2593 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4); |
2594 | s = SvPVX(sv) + SvCUR(sv) + z; |
2595 | } |
2596 | Copy(fops, s, arg, U16); |
2597 | Safefree(fops); |
55497cff |
2598 | sv_magic(sv, Nullsv, 'f', Nullch, 0); |
a0d0e21e |
2599 | SvCOMPILED_on(sv); |
2600 | } |