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)); |
fc36a67e |
30 | static OP *dofindlabel _((OP *op, char *label, OP **opstack, OP **oplimit)); |
a0d0e21e |
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) { |
c90c0ff4 |
97 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
a0d0e21e |
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 | |
c90c0ff4 |
115 | rxres_restore(&cx->sb_rxres, rx); |
116 | |
a0d0e21e |
117 | if (cx->sb_iters++) { |
118 | if (cx->sb_iters > cx->sb_maxiters) |
119 | DIE("Substitution loop"); |
120 | |
71be2cbc |
121 | if (!cx->sb_rxtainted) |
122 | cx->sb_rxtainted = SvTAINTED(TOPs); |
a0d0e21e |
123 | sv_catsv(dstr, POPs); |
a0d0e21e |
124 | |
125 | /* Are we done */ |
e50aee73 |
126 | if (cx->sb_once || !pregexec(rx, s, cx->sb_strend, orig, |
a0d0e21e |
127 | s == m, Nullsv, cx->sb_safebase)) |
128 | { |
129 | SV *targ = cx->sb_targ; |
130 | sv_catpvn(dstr, s, cx->sb_strend - s); |
748a9306 |
131 | |
9212bbba |
132 | TAINT_IF(cx->sb_rxtainted || rx->exec_tainted); |
133 | |
4633a7c4 |
134 | (void)SvOOK_off(targ); |
cb0b1708 |
135 | Safefree(SvPVX(targ)); |
748a9306 |
136 | SvPVX(targ) = SvPVX(dstr); |
137 | SvCUR_set(targ, SvCUR(dstr)); |
138 | SvLEN_set(targ, SvLEN(dstr)); |
139 | SvPVX(dstr) = 0; |
140 | sv_free(dstr); |
a0d0e21e |
141 | (void)SvPOK_only(targ); |
142 | SvSETMAGIC(targ); |
9212bbba |
143 | SvTAINT(targ); |
5cd24f17 |
144 | |
a0d0e21e |
145 | PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1))); |
4633a7c4 |
146 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e |
147 | POPSUBST(cx); |
148 | RETURNOP(pm->op_next); |
149 | } |
150 | } |
151 | if (rx->subbase && rx->subbase != orig) { |
152 | m = s; |
153 | s = orig; |
154 | cx->sb_orig = orig = rx->subbase; |
155 | s = orig + (m - s); |
156 | cx->sb_strend = s + (cx->sb_strend - m); |
157 | } |
158 | cx->sb_m = m = rx->startp[0]; |
159 | sv_catpvn(dstr, s, m-s); |
160 | cx->sb_s = rx->endp[0]; |
71be2cbc |
161 | cx->sb_rxtainted |= rx->exec_tainted; |
c90c0ff4 |
162 | rxres_save(&cx->sb_rxres, rx); |
a0d0e21e |
163 | RETURNOP(pm->op_pmreplstart); |
164 | } |
165 | |
c90c0ff4 |
166 | void |
167 | rxres_save(rsp, rx) |
168 | void **rsp; |
169 | REGEXP *rx; |
170 | { |
171 | UV *p = (UV*)*rsp; |
172 | U32 i; |
173 | |
174 | if (!p || p[1] < rx->nparens) { |
175 | i = 6 + rx->nparens * 2; |
176 | if (!p) |
177 | New(501, p, i, UV); |
178 | else |
179 | Renew(p, i, UV); |
180 | *rsp = (void*)p; |
181 | } |
182 | |
183 | *p++ = (UV)rx->subbase; |
184 | rx->subbase = Nullch; |
185 | |
186 | *p++ = rx->nparens; |
187 | |
188 | *p++ = (UV)rx->subbeg; |
189 | *p++ = (UV)rx->subend; |
190 | for (i = 0; i <= rx->nparens; ++i) { |
191 | *p++ = (UV)rx->startp[i]; |
192 | *p++ = (UV)rx->endp[i]; |
193 | } |
194 | } |
195 | |
196 | void |
197 | rxres_restore(rsp, rx) |
198 | void **rsp; |
199 | REGEXP *rx; |
200 | { |
201 | UV *p = (UV*)*rsp; |
202 | U32 i; |
203 | |
204 | Safefree(rx->subbase); |
205 | rx->subbase = (char*)(*p); |
206 | *p++ = 0; |
207 | |
208 | rx->nparens = *p++; |
209 | |
210 | rx->subbeg = (char*)(*p++); |
211 | rx->subend = (char*)(*p++); |
212 | for (i = 0; i <= rx->nparens; ++i) { |
213 | rx->startp[i] = (char*)(*p++); |
214 | rx->endp[i] = (char*)(*p++); |
215 | } |
216 | } |
217 | |
218 | void |
219 | rxres_free(rsp) |
220 | void **rsp; |
221 | { |
222 | UV *p = (UV*)*rsp; |
223 | |
224 | if (p) { |
225 | Safefree((char*)(*p)); |
226 | Safefree(p); |
227 | *rsp = Null(void*); |
228 | } |
229 | } |
230 | |
a0d0e21e |
231 | PP(pp_formline) |
232 | { |
233 | dSP; dMARK; dORIGMARK; |
234 | register SV *form = *++MARK; |
235 | register U16 *fpc; |
236 | register char *t; |
237 | register char *f; |
238 | register char *s; |
239 | register char *send; |
240 | register I32 arg; |
241 | register SV *sv; |
242 | char *item; |
243 | I32 itemsize; |
244 | I32 fieldsize; |
245 | I32 lines = 0; |
246 | bool chopspace = (strchr(chopset, ' ') != Nullch); |
247 | char *chophere; |
248 | char *linemark; |
a0d0e21e |
249 | double value; |
250 | bool gotsome; |
251 | STRLEN len; |
252 | |
55497cff |
253 | if (!SvMAGICAL(form) || !SvCOMPILED(form)) { |
a0d0e21e |
254 | SvREADONLY_off(form); |
255 | doparseform(form); |
256 | } |
257 | |
258 | SvPV_force(formtarget, len); |
259 | t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */ |
260 | t += len; |
261 | f = SvPV(form, len); |
262 | /* need to jump to the next word */ |
263 | s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN; |
264 | |
265 | fpc = (U16*)s; |
266 | |
267 | for (;;) { |
268 | DEBUG_f( { |
269 | char *name = "???"; |
270 | arg = -1; |
271 | switch (*fpc) { |
272 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; |
273 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; |
274 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; |
275 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; |
276 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; |
277 | |
278 | case FF_CHECKNL: name = "CHECKNL"; break; |
279 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; |
280 | case FF_SPACE: name = "SPACE"; break; |
281 | case FF_HALFSPACE: name = "HALFSPACE"; break; |
282 | case FF_ITEM: name = "ITEM"; break; |
283 | case FF_CHOP: name = "CHOP"; break; |
284 | case FF_LINEGLOB: name = "LINEGLOB"; break; |
285 | case FF_NEWLINE: name = "NEWLINE"; break; |
286 | case FF_MORE: name = "MORE"; break; |
287 | case FF_LINEMARK: name = "LINEMARK"; break; |
288 | case FF_END: name = "END"; break; |
289 | } |
290 | if (arg >= 0) |
760ac839 |
291 | PerlIO_printf(PerlIO_stderr(), "%-16s%ld\n", name, (long) arg); |
a0d0e21e |
292 | else |
760ac839 |
293 | PerlIO_printf(PerlIO_stderr(), "%-16s\n", name); |
a0d0e21e |
294 | } ) |
295 | switch (*fpc++) { |
296 | case FF_LINEMARK: |
297 | linemark = t; |
a0d0e21e |
298 | lines++; |
299 | gotsome = FALSE; |
300 | break; |
301 | |
302 | case FF_LITERAL: |
303 | arg = *fpc++; |
304 | while (arg--) |
305 | *t++ = *f++; |
306 | break; |
307 | |
308 | case FF_SKIP: |
309 | f += *fpc++; |
310 | break; |
311 | |
312 | case FF_FETCH: |
313 | arg = *fpc++; |
314 | f += arg; |
315 | fieldsize = arg; |
316 | |
317 | if (MARK < SP) |
318 | sv = *++MARK; |
319 | else { |
320 | sv = &sv_no; |
321 | if (dowarn) |
322 | warn("Not enough format arguments"); |
323 | } |
324 | break; |
325 | |
326 | case FF_CHECKNL: |
327 | item = s = SvPV(sv, len); |
328 | itemsize = len; |
329 | if (itemsize > fieldsize) |
330 | itemsize = fieldsize; |
331 | send = chophere = s + itemsize; |
332 | while (s < send) { |
333 | if (*s & ~31) |
334 | gotsome = TRUE; |
335 | else if (*s == '\n') |
336 | break; |
337 | s++; |
338 | } |
339 | itemsize = s - item; |
340 | break; |
341 | |
342 | case FF_CHECKCHOP: |
343 | item = s = SvPV(sv, len); |
344 | itemsize = len; |
345 | if (itemsize <= fieldsize) { |
346 | send = chophere = s + itemsize; |
347 | while (s < send) { |
348 | if (*s == '\r') { |
349 | itemsize = s - item; |
350 | break; |
351 | } |
352 | if (*s++ & ~31) |
353 | gotsome = TRUE; |
354 | } |
355 | } |
356 | else { |
357 | itemsize = fieldsize; |
358 | send = chophere = s + itemsize; |
359 | while (s < send || (s == send && isSPACE(*s))) { |
360 | if (isSPACE(*s)) { |
361 | if (chopspace) |
362 | chophere = s; |
363 | if (*s == '\r') |
364 | break; |
365 | } |
366 | else { |
367 | if (*s & ~31) |
368 | gotsome = TRUE; |
369 | if (strchr(chopset, *s)) |
370 | chophere = s + 1; |
371 | } |
372 | s++; |
373 | } |
374 | itemsize = chophere - item; |
375 | } |
376 | break; |
377 | |
378 | case FF_SPACE: |
379 | arg = fieldsize - itemsize; |
380 | if (arg) { |
381 | fieldsize -= arg; |
382 | while (arg-- > 0) |
383 | *t++ = ' '; |
384 | } |
385 | break; |
386 | |
387 | case FF_HALFSPACE: |
388 | arg = fieldsize - itemsize; |
389 | if (arg) { |
390 | arg /= 2; |
391 | fieldsize -= arg; |
392 | while (arg-- > 0) |
393 | *t++ = ' '; |
394 | } |
395 | break; |
396 | |
397 | case FF_ITEM: |
398 | arg = itemsize; |
399 | s = item; |
400 | while (arg--) { |
401 | #if 'z' - 'a' != 25 |
402 | int ch = *t++ = *s++; |
403 | if (!iscntrl(ch)) |
404 | t[-1] = ' '; |
405 | #else |
406 | if ( !((*t++ = *s++) & ~31) ) |
407 | t[-1] = ' '; |
408 | #endif |
409 | |
410 | } |
411 | break; |
412 | |
413 | case FF_CHOP: |
414 | s = chophere; |
415 | if (chopspace) { |
416 | while (*s && isSPACE(*s)) |
417 | s++; |
418 | } |
419 | sv_chop(sv,s); |
420 | break; |
421 | |
422 | case FF_LINEGLOB: |
423 | item = s = SvPV(sv, len); |
424 | itemsize = len; |
425 | if (itemsize) { |
426 | gotsome = TRUE; |
427 | send = s + itemsize; |
428 | while (s < send) { |
429 | if (*s++ == '\n') { |
430 | if (s == send) |
431 | itemsize--; |
432 | else |
433 | lines++; |
434 | } |
435 | } |
436 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
437 | sv_catpvn(formtarget, item, itemsize); |
438 | SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1); |
439 | t = SvPVX(formtarget) + SvCUR(formtarget); |
440 | } |
441 | break; |
442 | |
443 | case FF_DECIMAL: |
444 | /* If the field is marked with ^ and the value is undefined, |
445 | blank it out. */ |
446 | arg = *fpc++; |
447 | if ((arg & 512) && !SvOK(sv)) { |
448 | arg = fieldsize; |
449 | while (arg--) |
450 | *t++ = ' '; |
451 | break; |
452 | } |
453 | gotsome = TRUE; |
454 | value = SvNV(sv); |
bbce6d69 |
455 | /* Formats aren't yet marked for locales, so assume "yes". */ |
36477c24 |
456 | SET_NUMERIC_LOCAL(); |
a0d0e21e |
457 | if (arg & 256) { |
458 | sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value); |
459 | } else { |
460 | sprintf(t, "%*.0f", (int) fieldsize, value); |
461 | } |
462 | t += fieldsize; |
463 | break; |
464 | |
465 | case FF_NEWLINE: |
466 | f++; |
467 | while (t-- > linemark && *t == ' ') ; |
468 | t++; |
469 | *t++ = '\n'; |
470 | break; |
471 | |
472 | case FF_BLANK: |
473 | arg = *fpc++; |
474 | if (gotsome) { |
475 | if (arg) { /* repeat until fields exhausted? */ |
476 | *t = '\0'; |
477 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
478 | lines += FmLINES(formtarget); |
479 | if (lines == 200) { |
480 | arg = t - linemark; |
481 | if (strnEQ(linemark, linemark - arg, arg)) |
482 | DIE("Runaway format"); |
483 | } |
484 | FmLINES(formtarget) = lines; |
485 | SP = ORIGMARK; |
486 | RETURNOP(cLISTOP->op_first); |
487 | } |
488 | } |
489 | else { |
490 | t = linemark; |
491 | lines--; |
492 | } |
493 | break; |
494 | |
495 | case FF_MORE: |
496 | if (itemsize) { |
497 | arg = fieldsize - itemsize; |
498 | if (arg) { |
499 | fieldsize -= arg; |
500 | while (arg-- > 0) |
501 | *t++ = ' '; |
502 | } |
503 | s = t - 3; |
504 | if (strnEQ(s," ",3)) { |
505 | while (s > SvPVX(formtarget) && isSPACE(s[-1])) |
506 | s--; |
507 | } |
508 | *s++ = '.'; |
509 | *s++ = '.'; |
510 | *s++ = '.'; |
511 | } |
512 | break; |
513 | |
514 | case FF_END: |
515 | *t = '\0'; |
516 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
517 | FmLINES(formtarget) += lines; |
518 | SP = ORIGMARK; |
519 | RETPUSHYES; |
520 | } |
521 | } |
522 | } |
523 | |
524 | PP(pp_grepstart) |
525 | { |
526 | dSP; |
527 | SV *src; |
528 | |
529 | if (stack_base + *markstack_ptr == sp) { |
530 | (void)POPMARK; |
54310121 |
531 | if (GIMME_V == G_SCALAR) |
a0d0e21e |
532 | XPUSHs(&sv_no); |
533 | RETURNOP(op->op_next->op_next); |
534 | } |
535 | stack_sp = stack_base + *markstack_ptr + 1; |
536 | pp_pushmark(); /* push dst */ |
537 | pp_pushmark(); /* push src */ |
538 | ENTER; /* enter outer scope */ |
539 | |
540 | SAVETMPS; |
541 | SAVESPTR(GvSV(defgv)); |
542 | |
543 | ENTER; /* enter inner scope */ |
544 | SAVESPTR(curpm); |
545 | |
546 | src = stack_base[*markstack_ptr]; |
547 | SvTEMP_off(src); |
548 | GvSV(defgv) = src; |
549 | |
550 | PUTBACK; |
551 | if (op->op_type == OP_MAPSTART) |
552 | pp_pushmark(); /* push top */ |
553 | return ((LOGOP*)op->op_next)->op_other; |
554 | } |
555 | |
556 | PP(pp_mapstart) |
557 | { |
558 | DIE("panic: mapstart"); /* uses grepstart */ |
559 | } |
560 | |
561 | PP(pp_mapwhile) |
562 | { |
563 | dSP; |
564 | I32 diff = (sp - stack_base) - *markstack_ptr; |
565 | I32 count; |
566 | I32 shift; |
567 | SV** src; |
568 | SV** dst; |
569 | |
570 | ++markstack_ptr[-1]; |
571 | if (diff) { |
572 | if (diff > markstack_ptr[-1] - markstack_ptr[-2]) { |
573 | shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]); |
574 | count = (sp - stack_base) - markstack_ptr[-1] + 2; |
575 | |
576 | EXTEND(sp,shift); |
577 | src = sp; |
578 | dst = (sp += shift); |
579 | markstack_ptr[-1] += shift; |
580 | *markstack_ptr += shift; |
581 | while (--count) |
582 | *dst-- = *src--; |
583 | } |
584 | dst = stack_base + (markstack_ptr[-2] += diff) - 1; |
585 | ++diff; |
586 | while (--diff) |
587 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); |
588 | } |
589 | LEAVE; /* exit inner scope */ |
590 | |
591 | /* All done yet? */ |
592 | if (markstack_ptr[-1] > *markstack_ptr) { |
593 | I32 items; |
54310121 |
594 | I32 gimme = GIMME_V; |
a0d0e21e |
595 | |
596 | (void)POPMARK; /* pop top */ |
597 | LEAVE; /* exit outer scope */ |
598 | (void)POPMARK; /* pop src */ |
599 | items = --*markstack_ptr - markstack_ptr[-1]; |
600 | (void)POPMARK; /* pop dst */ |
601 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
602 | if (gimme == G_SCALAR) { |
a0d0e21e |
603 | dTARGET; |
604 | XPUSHi(items); |
a0d0e21e |
605 | } |
54310121 |
606 | else if (gimme == G_ARRAY) |
607 | SP += items; |
a0d0e21e |
608 | RETURN; |
609 | } |
610 | else { |
611 | SV *src; |
612 | |
613 | ENTER; /* enter inner scope */ |
614 | SAVESPTR(curpm); |
615 | |
616 | src = stack_base[markstack_ptr[-1]]; |
617 | SvTEMP_off(src); |
618 | GvSV(defgv) = src; |
619 | |
620 | RETURNOP(cLOGOP->op_other); |
621 | } |
622 | } |
623 | |
624 | |
625 | PP(pp_sort) |
626 | { |
627 | dSP; dMARK; dORIGMARK; |
628 | register SV **up; |
629 | SV **myorigmark = ORIGMARK; |
630 | register I32 max; |
631 | HV *stash; |
632 | GV *gv; |
633 | CV *cv; |
634 | I32 gimme = GIMME; |
635 | OP* nextop = op->op_next; |
636 | |
637 | if (gimme != G_ARRAY) { |
638 | SP = MARK; |
639 | RETPUSHUNDEF; |
640 | } |
641 | |
642 | if (op->op_flags & OPf_STACKED) { |
643 | ENTER; |
644 | if (op->op_flags & OPf_SPECIAL) { |
645 | OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */ |
646 | kid = kUNOP->op_first; /* pass rv2gv */ |
647 | kid = kUNOP->op_first; /* pass leave */ |
648 | sortcop = kid->op_next; |
649 | stash = curcop->cop_stash; |
650 | } |
651 | else { |
652 | cv = sv_2cv(*++MARK, &stash, &gv, 0); |
653 | if (!(cv && CvROOT(cv))) { |
654 | if (gv) { |
655 | SV *tmpstr = sv_newmortal(); |
e5cf08de |
656 | gv_efullname3(tmpstr, gv, Nullch); |
a0d0e21e |
657 | if (cv && CvXSUB(cv)) |
658 | DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr)); |
659 | DIE("Undefined sort subroutine \"%s\" called", |
660 | SvPVX(tmpstr)); |
661 | } |
662 | if (cv) { |
663 | if (CvXSUB(cv)) |
664 | DIE("Xsub called in sort"); |
665 | DIE("Undefined subroutine in sort"); |
666 | } |
667 | DIE("Not a CODE reference in sort"); |
668 | } |
669 | sortcop = CvSTART(cv); |
670 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
671 | CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL]; |
b3933176 |
672 | |
a0d0e21e |
673 | SAVESPTR(curpad); |
674 | curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
675 | } |
676 | } |
677 | else { |
678 | sortcop = Nullop; |
679 | stash = curcop->cop_stash; |
680 | } |
681 | |
682 | up = myorigmark + 1; |
683 | while (MARK < SP) { /* This may or may not shift down one here. */ |
684 | /*SUPPRESS 560*/ |
685 | if (*up = *++MARK) { /* Weed out nulls. */ |
9f8d30d5 |
686 | SvTEMP_off(*up); |
687 | if (!sortcop && !SvPOK(*up)) |
a0d0e21e |
688 | (void)sv_2pv(*up, &na); |
a0d0e21e |
689 | up++; |
690 | } |
691 | } |
692 | max = --up - myorigmark; |
693 | if (sortcop) { |
694 | if (max > 1) { |
695 | AV *oldstack; |
696 | CONTEXT *cx; |
697 | SV** newsp; |
54310121 |
698 | bool oldcatch = CATCH_GET; |
a0d0e21e |
699 | |
700 | SAVETMPS; |
701 | SAVESPTR(op); |
702 | |
1ce6579f |
703 | oldstack = curstack; |
a0d0e21e |
704 | if (!sortstack) { |
705 | sortstack = newAV(); |
706 | AvREAL_off(sortstack); |
707 | av_extend(sortstack, 32); |
708 | } |
54310121 |
709 | CATCH_SET(TRUE); |
1ce6579f |
710 | SWITCHSTACK(curstack, sortstack); |
a0d0e21e |
711 | if (sortstash != stash) { |
712 | firstgv = gv_fetchpv("a", TRUE, SVt_PV); |
713 | secondgv = gv_fetchpv("b", TRUE, SVt_PV); |
714 | sortstash = stash; |
715 | } |
716 | |
717 | SAVESPTR(GvSV(firstgv)); |
718 | SAVESPTR(GvSV(secondgv)); |
b3933176 |
719 | |
0a753a76 |
720 | PUSHBLOCK(cx, CXt_NULL, stack_base); |
b3933176 |
721 | if (!(op->op_flags & OPf_SPECIAL)) { |
722 | bool hasargs = FALSE; |
723 | cx->cx_type = CXt_SUB; |
724 | cx->blk_gimme = G_SCALAR; |
725 | PUSHSUB(cx); |
726 | if (!CvDEPTH(cv)) |
727 | SvREFCNT_inc(cv); /* in preparation for POPSUB */ |
728 | } |
a0d0e21e |
729 | sortcxix = cxstack_ix; |
730 | |
731 | qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv); |
732 | |
733 | POPBLOCK(cx,curpm); |
734 | SWITCHSTACK(sortstack, oldstack); |
54310121 |
735 | CATCH_SET(oldcatch); |
a0d0e21e |
736 | } |
737 | LEAVE; |
738 | } |
739 | else { |
740 | if (max > 1) { |
741 | MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
bbce6d69 |
742 | qsort((char*)(ORIGMARK+1), max, sizeof(SV*), |
743 | (op->op_private & OPpLOCALE) ? sortcmp_locale : sortcmp); |
a0d0e21e |
744 | } |
745 | } |
746 | stack_sp = ORIGMARK + max; |
747 | return nextop; |
748 | } |
749 | |
750 | /* Range stuff. */ |
751 | |
752 | PP(pp_range) |
753 | { |
754 | if (GIMME == G_ARRAY) |
755 | return cCONDOP->op_true; |
756 | return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true; |
757 | } |
758 | |
759 | PP(pp_flip) |
760 | { |
761 | dSP; |
762 | |
763 | if (GIMME == G_ARRAY) { |
764 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
765 | } |
766 | else { |
767 | dTOPss; |
768 | SV *targ = PAD_SV(op->op_targ); |
769 | |
770 | if ((op->op_private & OPpFLIP_LINENUM) |
771 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
772 | : SvTRUE(sv) ) { |
773 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
774 | if (op->op_flags & OPf_SPECIAL) { |
775 | sv_setiv(targ, 1); |
776 | RETURN; |
777 | } |
778 | else { |
779 | sv_setiv(targ, 0); |
780 | sp--; |
781 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
782 | } |
783 | } |
784 | sv_setpv(TARG, ""); |
785 | SETs(targ); |
786 | RETURN; |
787 | } |
788 | } |
789 | |
790 | PP(pp_flop) |
791 | { |
792 | dSP; |
793 | |
794 | if (GIMME == G_ARRAY) { |
795 | dPOPPOPssrl; |
796 | register I32 i; |
797 | register SV *sv; |
798 | I32 max; |
799 | |
4633a7c4 |
800 | if (SvNIOKp(left) || !SvPOKp(left) || |
bbce6d69 |
801 | (looks_like_number(left) && *SvPVX(left) != '0') ) |
802 | { |
a0d0e21e |
803 | i = SvIV(left); |
804 | max = SvIV(right); |
bbce6d69 |
805 | if (max >= i) { |
806 | EXTEND_MORTAL(max - i + 1); |
a0d0e21e |
807 | EXTEND(SP, max - i + 1); |
bbce6d69 |
808 | } |
a0d0e21e |
809 | while (i <= max) { |
bbce6d69 |
810 | sv = sv_2mortal(newSViv(i++)); |
a0d0e21e |
811 | PUSHs(sv); |
812 | } |
813 | } |
814 | else { |
815 | SV *final = sv_mortalcopy(right); |
816 | STRLEN len; |
817 | char *tmps = SvPV(final, len); |
818 | |
819 | sv = sv_mortalcopy(left); |
4633a7c4 |
820 | while (!SvNIOKp(sv) && SvCUR(sv) <= len && |
a0d0e21e |
821 | strNE(SvPVX(sv),tmps) ) { |
822 | XPUSHs(sv); |
823 | sv = sv_2mortal(newSVsv(sv)); |
824 | sv_inc(sv); |
825 | } |
826 | if (strEQ(SvPVX(sv),tmps)) |
827 | XPUSHs(sv); |
828 | } |
829 | } |
830 | else { |
831 | dTOPss; |
832 | SV *targ = PAD_SV(cUNOP->op_first->op_targ); |
833 | sv_inc(targ); |
834 | if ((op->op_private & OPpFLIP_LINENUM) |
835 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
836 | : SvTRUE(sv) ) { |
837 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
838 | sv_catpv(targ, "E0"); |
839 | } |
840 | SETs(targ); |
841 | } |
842 | |
843 | RETURN; |
844 | } |
845 | |
846 | /* Control. */ |
847 | |
848 | static I32 |
849 | dopoptolabel(label) |
850 | char *label; |
851 | { |
852 | register I32 i; |
853 | register CONTEXT *cx; |
854 | |
855 | for (i = cxstack_ix; i >= 0; i--) { |
856 | cx = &cxstack[i]; |
857 | switch (cx->cx_type) { |
858 | case CXt_SUBST: |
859 | if (dowarn) |
860 | warn("Exiting substitution via %s", op_name[op->op_type]); |
861 | break; |
862 | case CXt_SUB: |
863 | if (dowarn) |
864 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
865 | break; |
866 | case CXt_EVAL: |
867 | if (dowarn) |
868 | warn("Exiting eval via %s", op_name[op->op_type]); |
869 | break; |
0a753a76 |
870 | case CXt_NULL: |
871 | if (dowarn) |
872 | warn("Exiting pseudo-block via %s", op_name[op->op_type]); |
873 | return -1; |
a0d0e21e |
874 | case CXt_LOOP: |
875 | if (!cx->blk_loop.label || |
876 | strNE(label, cx->blk_loop.label) ) { |
68dc0745 |
877 | DEBUG_l(deb("(Skipping label #%ld %s)\n", |
878 | (long)i, cx->blk_loop.label)); |
a0d0e21e |
879 | continue; |
880 | } |
68dc0745 |
881 | DEBUG_l( deb("(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e |
882 | return i; |
883 | } |
884 | } |
885 | return i; |
886 | } |
887 | |
e50aee73 |
888 | I32 |
889 | dowantarray() |
890 | { |
54310121 |
891 | I32 gimme = block_gimme(); |
892 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
893 | } |
894 | |
895 | I32 |
896 | block_gimme() |
897 | { |
e50aee73 |
898 | I32 cxix; |
899 | |
900 | cxix = dopoptosub(cxstack_ix); |
901 | if (cxix < 0) |
46fc3d4c |
902 | return G_VOID; |
e50aee73 |
903 | |
54310121 |
904 | switch (cxstack[cxix].blk_gimme) { |
905 | case G_VOID: |
906 | return G_VOID; |
907 | case G_SCALAR: |
e50aee73 |
908 | return G_SCALAR; |
54310121 |
909 | case G_ARRAY: |
910 | return G_ARRAY; |
911 | default: |
912 | croak("panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
913 | } |
e50aee73 |
914 | } |
915 | |
a0d0e21e |
916 | static I32 |
917 | dopoptosub(startingblock) |
918 | I32 startingblock; |
919 | { |
920 | I32 i; |
921 | register CONTEXT *cx; |
922 | for (i = startingblock; i >= 0; i--) { |
923 | cx = &cxstack[i]; |
924 | switch (cx->cx_type) { |
925 | default: |
926 | continue; |
927 | case CXt_EVAL: |
928 | case CXt_SUB: |
68dc0745 |
929 | DEBUG_l( deb("(Found sub #%ld)\n", (long)i)); |
a0d0e21e |
930 | return i; |
931 | } |
932 | } |
933 | return i; |
934 | } |
935 | |
936 | static I32 |
937 | dopoptoeval(startingblock) |
938 | I32 startingblock; |
939 | { |
940 | I32 i; |
941 | register CONTEXT *cx; |
942 | for (i = startingblock; i >= 0; i--) { |
943 | cx = &cxstack[i]; |
944 | switch (cx->cx_type) { |
945 | default: |
946 | continue; |
947 | case CXt_EVAL: |
68dc0745 |
948 | DEBUG_l( deb("(Found eval #%ld)\n", (long)i)); |
a0d0e21e |
949 | return i; |
950 | } |
951 | } |
952 | return i; |
953 | } |
954 | |
955 | static I32 |
956 | dopoptoloop(startingblock) |
957 | I32 startingblock; |
958 | { |
959 | I32 i; |
960 | register CONTEXT *cx; |
961 | for (i = startingblock; i >= 0; i--) { |
962 | cx = &cxstack[i]; |
963 | switch (cx->cx_type) { |
964 | case CXt_SUBST: |
965 | if (dowarn) |
5f05dabc |
966 | warn("Exiting substitution via %s", op_name[op->op_type]); |
a0d0e21e |
967 | break; |
968 | case CXt_SUB: |
969 | if (dowarn) |
970 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
971 | break; |
972 | case CXt_EVAL: |
973 | if (dowarn) |
974 | warn("Exiting eval via %s", op_name[op->op_type]); |
975 | break; |
0a753a76 |
976 | case CXt_NULL: |
977 | if (dowarn) |
978 | warn("Exiting pseudo-block via %s", op_name[op->op_type]); |
979 | return -1; |
a0d0e21e |
980 | case CXt_LOOP: |
68dc0745 |
981 | DEBUG_l( deb("(Found loop #%ld)\n", (long)i)); |
a0d0e21e |
982 | return i; |
983 | } |
984 | } |
985 | return i; |
986 | } |
987 | |
988 | void |
989 | dounwind(cxix) |
990 | I32 cxix; |
991 | { |
992 | register CONTEXT *cx; |
993 | SV **newsp; |
994 | I32 optype; |
995 | |
996 | while (cxstack_ix > cxix) { |
c90c0ff4 |
997 | cx = &cxstack[cxstack_ix]; |
998 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
999 | (long) cxstack_ix+1, block_type[cx->cx_type])); |
a0d0e21e |
1000 | /* Note: we don't need to restore the base context info till the end. */ |
1001 | switch (cx->cx_type) { |
c90c0ff4 |
1002 | case CXt_SUBST: |
1003 | POPSUBST(cx); |
1004 | continue; /* not break */ |
a0d0e21e |
1005 | case CXt_SUB: |
1006 | POPSUB(cx); |
1007 | break; |
1008 | case CXt_EVAL: |
1009 | POPEVAL(cx); |
1010 | break; |
1011 | case CXt_LOOP: |
1012 | POPLOOP(cx); |
1013 | break; |
0a753a76 |
1014 | case CXt_NULL: |
a0d0e21e |
1015 | break; |
1016 | } |
c90c0ff4 |
1017 | cxstack_ix--; |
a0d0e21e |
1018 | } |
1019 | } |
1020 | |
a0d0e21e |
1021 | OP * |
1022 | die_where(message) |
1023 | char *message; |
1024 | { |
1025 | if (in_eval) { |
1026 | I32 cxix; |
1027 | register CONTEXT *cx; |
1028 | I32 gimme; |
1029 | SV **newsp; |
1030 | |
4633a7c4 |
1031 | if (in_eval & 4) { |
1032 | SV **svp; |
1033 | STRLEN klen = strlen(message); |
1034 | |
1035 | svp = hv_fetch(GvHV(errgv), message, klen, TRUE); |
1036 | if (svp) { |
1037 | if (!SvIOK(*svp)) { |
1038 | static char prefix[] = "\t(in cleanup) "; |
1039 | sv_upgrade(*svp, SVt_IV); |
1040 | (void)SvIOK_only(*svp); |
1041 | SvGROW(GvSV(errgv), SvCUR(GvSV(errgv))+sizeof(prefix)+klen); |
1042 | sv_catpvn(GvSV(errgv), prefix, sizeof(prefix)-1); |
1043 | sv_catpvn(GvSV(errgv), message, klen); |
1044 | } |
1045 | sv_inc(*svp); |
1046 | } |
1047 | } |
1048 | else |
c07a80fd |
1049 | sv_setpv(GvSV(errgv), message); |
4633a7c4 |
1050 | |
a0d0e21e |
1051 | cxix = dopoptoeval(cxstack_ix); |
1052 | if (cxix >= 0) { |
1053 | I32 optype; |
1054 | |
1055 | if (cxix < cxstack_ix) |
1056 | dounwind(cxix); |
1057 | |
1058 | POPBLOCK(cx,curpm); |
1059 | if (cx->cx_type != CXt_EVAL) { |
760ac839 |
1060 | PerlIO_printf(PerlIO_stderr(), "panic: die %s", message); |
a0d0e21e |
1061 | my_exit(1); |
1062 | } |
1063 | POPEVAL(cx); |
1064 | |
1065 | if (gimme == G_SCALAR) |
1066 | *++newsp = &sv_undef; |
1067 | stack_sp = newsp; |
1068 | |
1069 | LEAVE; |
748a9306 |
1070 | |
7a2e2cd6 |
1071 | if (optype == OP_REQUIRE) { |
1072 | char* msg = SvPVx(GvSV(errgv), na); |
1073 | DIE("%s", *msg ? msg : "Compilation failed in require"); |
1074 | } |
a0d0e21e |
1075 | return pop_return(); |
1076 | } |
1077 | } |
760ac839 |
1078 | PerlIO_printf(PerlIO_stderr(), "%s",message); |
1079 | PerlIO_flush(PerlIO_stderr()); |
f86702cc |
1080 | my_failure_exit(); |
1081 | /* NOTREACHED */ |
a0d0e21e |
1082 | return 0; |
1083 | } |
1084 | |
1085 | PP(pp_xor) |
1086 | { |
1087 | dSP; dPOPTOPssrl; |
1088 | if (SvTRUE(left) != SvTRUE(right)) |
1089 | RETSETYES; |
1090 | else |
1091 | RETSETNO; |
1092 | } |
1093 | |
1094 | PP(pp_andassign) |
1095 | { |
1096 | dSP; |
1097 | if (!SvTRUE(TOPs)) |
1098 | RETURN; |
1099 | else |
1100 | RETURNOP(cLOGOP->op_other); |
1101 | } |
1102 | |
1103 | PP(pp_orassign) |
1104 | { |
1105 | dSP; |
1106 | if (SvTRUE(TOPs)) |
1107 | RETURN; |
1108 | else |
1109 | RETURNOP(cLOGOP->op_other); |
1110 | } |
1111 | |
1112 | #ifdef DEPRECATED |
1113 | PP(pp_entersubr) |
1114 | { |
1115 | dSP; |
1116 | SV** mark = (stack_base + *markstack_ptr + 1); |
1117 | SV* cv = *mark; |
1118 | while (mark < sp) { /* emulate old interface */ |
1119 | *mark = mark[1]; |
1120 | mark++; |
1121 | } |
1122 | *sp = cv; |
1123 | return pp_entersub(); |
1124 | } |
1125 | #endif |
1126 | |
1127 | PP(pp_caller) |
1128 | { |
1129 | dSP; |
1130 | register I32 cxix = dopoptosub(cxstack_ix); |
1131 | register CONTEXT *cx; |
1132 | I32 dbcxix; |
54310121 |
1133 | I32 gimme; |
a0d0e21e |
1134 | SV *sv; |
1135 | I32 count = 0; |
1136 | |
1137 | if (MAXARG) |
1138 | count = POPi; |
1139 | EXTEND(SP, 6); |
1140 | for (;;) { |
1141 | if (cxix < 0) { |
1142 | if (GIMME != G_ARRAY) |
1143 | RETPUSHUNDEF; |
1144 | RETURN; |
1145 | } |
1146 | if (DBsub && cxix >= 0 && |
1147 | cxstack[cxix].blk_sub.cv == GvCV(DBsub)) |
1148 | count++; |
1149 | if (!count--) |
1150 | break; |
1151 | cxix = dopoptosub(cxix - 1); |
1152 | } |
1153 | cx = &cxstack[cxix]; |
06a5b730 |
1154 | if (cxstack[cxix].cx_type == CXt_SUB) { |
1155 | dbcxix = dopoptosub(cxix - 1); |
1156 | /* We expect that cxstack[dbcxix] is CXt_SUB, anyway, the |
1157 | field below is defined for any cx. */ |
1158 | if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub)) |
1159 | cx = &cxstack[dbcxix]; |
1160 | } |
1161 | |
a0d0e21e |
1162 | if (GIMME != G_ARRAY) { |
1163 | dTARGET; |
1164 | |
1165 | sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash)); |
1166 | PUSHs(TARG); |
1167 | RETURN; |
1168 | } |
a0d0e21e |
1169 | |
1170 | PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0))); |
1171 | PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0))); |
1172 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line))); |
1173 | if (!MAXARG) |
1174 | RETURN; |
06a5b730 |
1175 | if (cx->cx_type == CXt_SUB) { /* So is cxstack[dbcxix]. */ |
a0d0e21e |
1176 | sv = NEWSV(49, 0); |
e5cf08de |
1177 | gv_efullname3(sv, CvGV(cxstack[cxix].blk_sub.cv), Nullch); |
a0d0e21e |
1178 | PUSHs(sv_2mortal(sv)); |
1179 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
1180 | } |
1181 | else { |
1182 | PUSHs(sv_2mortal(newSVpv("(eval)",0))); |
1183 | PUSHs(sv_2mortal(newSViv(0))); |
1184 | } |
54310121 |
1185 | gimme = (I32)cx->blk_gimme; |
1186 | if (gimme == G_VOID) |
1187 | PUSHs(&sv_undef); |
1188 | else |
1189 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); |
4633a7c4 |
1190 | if (cx->cx_type == CXt_EVAL) { |
06a5b730 |
1191 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 |
1192 | PUSHs(cx->blk_eval.cur_text); |
06a5b730 |
1193 | PUSHs(&sv_no); |
1194 | } |
1195 | else if (cx->blk_eval.old_name) { /* Try blocks have old_name == 0. */ |
1196 | /* Require, put the name. */ |
1197 | PUSHs(sv_2mortal(newSVpv(cx->blk_eval.old_name, 0))); |
1198 | PUSHs(&sv_yes); |
1199 | } |
4633a7c4 |
1200 | } |
1201 | else if (cx->cx_type == CXt_SUB && |
1202 | cx->blk_sub.hasargs && |
1203 | curcop->cop_stash == debstash) |
1204 | { |
a0d0e21e |
1205 | AV *ary = cx->blk_sub.argarray; |
1206 | int off = AvARRAY(ary) - AvALLOC(ary); |
1207 | |
1208 | if (!dbargs) { |
1209 | GV* tmpgv; |
1210 | dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE, |
1211 | SVt_PVAV))); |
a5f75d66 |
1212 | GvMULTI_on(tmpgv); |
a0d0e21e |
1213 | AvREAL_off(dbargs); /* XXX Should be REIFY */ |
1214 | } |
1215 | |
1216 | if (AvMAX(dbargs) < AvFILL(ary) + off) |
1217 | av_extend(dbargs, AvFILL(ary) + off); |
1218 | Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*); |
1219 | AvFILL(dbargs) = AvFILL(ary) + off; |
1220 | } |
1221 | RETURN; |
1222 | } |
1223 | |
1224 | static int |
1225 | sortcv(a, b) |
1226 | const void *a; |
1227 | const void *b; |
1228 | { |
9607fc9c |
1229 | SV * const *str1 = (SV * const *)a; |
1230 | SV * const *str2 = (SV * const *)b; |
748a9306 |
1231 | I32 oldsaveix = savestack_ix; |
a0d0e21e |
1232 | I32 oldscopeix = scopestack_ix; |
1233 | I32 result; |
1234 | GvSV(firstgv) = *str1; |
1235 | GvSV(secondgv) = *str2; |
1236 | stack_sp = stack_base; |
1237 | op = sortcop; |
a6c477ed |
1238 | runops(); |
a0d0e21e |
1239 | if (stack_sp != stack_base + 1) |
1240 | croak("Sort subroutine didn't return single value"); |
748a9306 |
1241 | if (!SvNIOKp(*stack_sp)) |
a0d0e21e |
1242 | croak("Sort subroutine didn't return a numeric value"); |
1243 | result = SvIV(*stack_sp); |
1244 | while (scopestack_ix > oldscopeix) { |
1245 | LEAVE; |
1246 | } |
748a9306 |
1247 | leave_scope(oldsaveix); |
a0d0e21e |
1248 | return result; |
1249 | } |
1250 | |
1251 | static int |
1252 | sortcmp(a, b) |
1253 | const void *a; |
1254 | const void *b; |
1255 | { |
9607fc9c |
1256 | return sv_cmp(*(SV * const *)a, *(SV * const *)b); |
bbce6d69 |
1257 | } |
e5cf08de |
1258 | |
bbce6d69 |
1259 | static int |
1260 | sortcmp_locale(a, b) |
1261 | const void *a; |
1262 | const void *b; |
1263 | { |
9607fc9c |
1264 | return sv_cmp_locale(*(SV * const *)a, *(SV * const *)b); |
a0d0e21e |
1265 | } |
1266 | |
1267 | PP(pp_reset) |
1268 | { |
1269 | dSP; |
1270 | char *tmps; |
1271 | |
1272 | if (MAXARG < 1) |
1273 | tmps = ""; |
1274 | else |
1275 | tmps = POPp; |
1276 | sv_reset(tmps, curcop->cop_stash); |
1277 | PUSHs(&sv_yes); |
1278 | RETURN; |
1279 | } |
1280 | |
1281 | PP(pp_lineseq) |
1282 | { |
1283 | return NORMAL; |
1284 | } |
1285 | |
1286 | PP(pp_dbstate) |
1287 | { |
1288 | curcop = (COP*)op; |
1289 | TAINT_NOT; /* Each statement is presumed innocent */ |
1290 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
1291 | FREETMPS; |
1292 | |
1293 | if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace)) |
1294 | { |
1295 | SV **sp; |
1296 | register CV *cv; |
1297 | register CONTEXT *cx; |
748a9306 |
1298 | I32 gimme = G_ARRAY; |
a0d0e21e |
1299 | I32 hasargs; |
1300 | GV *gv; |
1301 | |
a0d0e21e |
1302 | gv = DBgv; |
1303 | cv = GvCV(gv); |
a0d0e21e |
1304 | if (!cv) |
1305 | DIE("No DB::DB routine defined"); |
1306 | |
06a5b730 |
1307 | if (CvDEPTH(cv) >= 1 && !(debug & (1<<30))) /* don't do recursive DB::DB call */ |
a0d0e21e |
1308 | return NORMAL; |
748a9306 |
1309 | |
4633a7c4 |
1310 | ENTER; |
1311 | SAVETMPS; |
1312 | |
748a9306 |
1313 | SAVEI32(debug); |
55497cff |
1314 | SAVESTACK_POS(); |
748a9306 |
1315 | debug = 0; |
1316 | hasargs = 0; |
1317 | sp = stack_sp; |
1318 | |
a0d0e21e |
1319 | push_return(op->op_next); |
748a9306 |
1320 | PUSHBLOCK(cx, CXt_SUB, sp); |
a0d0e21e |
1321 | PUSHSUB(cx); |
1322 | CvDEPTH(cv)++; |
1323 | (void)SvREFCNT_inc(cv); |
1324 | SAVESPTR(curpad); |
1325 | curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE)); |
1326 | RETURNOP(CvSTART(cv)); |
1327 | } |
1328 | else |
1329 | return NORMAL; |
1330 | } |
1331 | |
1332 | PP(pp_scope) |
1333 | { |
1334 | return NORMAL; |
1335 | } |
1336 | |
1337 | PP(pp_enteriter) |
1338 | { |
1339 | dSP; dMARK; |
1340 | register CONTEXT *cx; |
54310121 |
1341 | I32 gimme = GIMME_V; |
a0d0e21e |
1342 | SV **svp; |
1343 | |
4633a7c4 |
1344 | ENTER; |
1345 | SAVETMPS; |
1346 | |
a0d0e21e |
1347 | if (op->op_targ) |
1348 | svp = &curpad[op->op_targ]; /* "my" variable */ |
1349 | else |
1350 | svp = &GvSV((GV*)POPs); /* symbol table variable */ |
1351 | |
4633a7c4 |
1352 | SAVESPTR(*svp); |
1353 | |
a0d0e21e |
1354 | ENTER; |
1355 | |
1356 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1357 | PUSHLOOP(cx, svp, MARK); |
44a8e56a |
1358 | if (op->op_flags & OPf_STACKED) |
1359 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
4633a7c4 |
1360 | else { |
1ce6579f |
1361 | cx->blk_loop.iterary = curstack; |
1362 | AvFILL(curstack) = sp - stack_base; |
4633a7c4 |
1363 | cx->blk_loop.iterix = MARK - stack_base; |
1364 | } |
a0d0e21e |
1365 | |
1366 | RETURN; |
1367 | } |
1368 | |
1369 | PP(pp_enterloop) |
1370 | { |
1371 | dSP; |
1372 | register CONTEXT *cx; |
54310121 |
1373 | I32 gimme = GIMME_V; |
a0d0e21e |
1374 | |
1375 | ENTER; |
1376 | SAVETMPS; |
1377 | ENTER; |
1378 | |
1379 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1380 | PUSHLOOP(cx, 0, SP); |
1381 | |
1382 | RETURN; |
1383 | } |
1384 | |
1385 | PP(pp_leaveloop) |
1386 | { |
1387 | dSP; |
1388 | register CONTEXT *cx; |
f86702cc |
1389 | struct block_loop cxloop; |
a0d0e21e |
1390 | I32 gimme; |
1391 | SV **newsp; |
1392 | PMOP *newpm; |
1393 | SV **mark; |
1394 | |
1395 | POPBLOCK(cx,newpm); |
4fdae800 |
1396 | mark = newsp; |
f86702cc |
1397 | POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */ |
1398 | |
a1f49e72 |
1399 | TAINT_NOT; |
54310121 |
1400 | if (gimme == G_VOID) |
1401 | ; /* do nothing */ |
1402 | else if (gimme == G_SCALAR) { |
1403 | if (mark < SP) |
1404 | *++newsp = sv_mortalcopy(*SP); |
1405 | else |
1406 | *++newsp = &sv_undef; |
a0d0e21e |
1407 | } |
1408 | else { |
a1f49e72 |
1409 | while (mark < SP) { |
a0d0e21e |
1410 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 |
1411 | TAINT_NOT; /* Each item is independent */ |
1412 | } |
a0d0e21e |
1413 | } |
f86702cc |
1414 | SP = newsp; |
1415 | PUTBACK; |
1416 | |
1417 | POPLOOP2(); /* Stack values are safe: release loop vars ... */ |
1418 | curpm = newpm; /* ... and pop $1 et al */ |
1419 | |
a0d0e21e |
1420 | LEAVE; |
1421 | LEAVE; |
1422 | |
f86702cc |
1423 | return NORMAL; |
a0d0e21e |
1424 | } |
1425 | |
1426 | PP(pp_return) |
1427 | { |
1428 | dSP; dMARK; |
1429 | I32 cxix; |
1430 | register CONTEXT *cx; |
f86702cc |
1431 | struct block_sub cxsub; |
1432 | bool popsub2 = FALSE; |
a0d0e21e |
1433 | I32 gimme; |
1434 | SV **newsp; |
1435 | PMOP *newpm; |
1436 | I32 optype = 0; |
1437 | |
1ce6579f |
1438 | if (curstack == sortstack) { |
b3933176 |
1439 | if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) <= sortcxix) { |
16d20bd9 |
1440 | if (cxstack_ix > sortcxix) |
1441 | dounwind(sortcxix); |
1ce6579f |
1442 | AvARRAY(curstack)[1] = *SP; |
a0d0e21e |
1443 | stack_sp = stack_base + 1; |
1444 | return 0; |
1445 | } |
1446 | } |
1447 | |
1448 | cxix = dopoptosub(cxstack_ix); |
1449 | if (cxix < 0) |
1450 | DIE("Can't return outside a subroutine"); |
1451 | if (cxix < cxstack_ix) |
1452 | dounwind(cxix); |
1453 | |
1454 | POPBLOCK(cx,newpm); |
1455 | switch (cx->cx_type) { |
1456 | case CXt_SUB: |
f86702cc |
1457 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1458 | popsub2 = TRUE; |
a0d0e21e |
1459 | break; |
1460 | case CXt_EVAL: |
1461 | POPEVAL(cx); |
748a9306 |
1462 | if (optype == OP_REQUIRE && |
1463 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) |
1464 | { |
54310121 |
1465 | /* Unassume the success we assumed earlier. */ |
748a9306 |
1466 | char *name = cx->blk_eval.old_name; |
1467 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
1468 | DIE("%s did not return a true value", name); |
1469 | } |
a0d0e21e |
1470 | break; |
1471 | default: |
1472 | DIE("panic: return"); |
a0d0e21e |
1473 | } |
1474 | |
a1f49e72 |
1475 | TAINT_NOT; |
a0d0e21e |
1476 | if (gimme == G_SCALAR) { |
1477 | if (MARK < SP) |
f86702cc |
1478 | *++newsp = (popsub2 && SvTEMP(*SP)) |
1479 | ? *SP : sv_mortalcopy(*SP); |
a0d0e21e |
1480 | else |
1481 | *++newsp = &sv_undef; |
a0d0e21e |
1482 | } |
54310121 |
1483 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1484 | while (++MARK <= SP) { |
f86702cc |
1485 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
1486 | ? *MARK : sv_mortalcopy(*MARK); |
a1f49e72 |
1487 | TAINT_NOT; /* Each item is independent */ |
1488 | } |
a0d0e21e |
1489 | } |
a0d0e21e |
1490 | stack_sp = newsp; |
1491 | |
f86702cc |
1492 | /* Stack values are safe: */ |
1493 | if (popsub2) { |
1494 | POPSUB2(); /* release CV and @_ ... */ |
1495 | } |
1496 | curpm = newpm; /* ... and pop $1 et al */ |
1497 | |
a0d0e21e |
1498 | LEAVE; |
1499 | return pop_return(); |
1500 | } |
1501 | |
1502 | PP(pp_last) |
1503 | { |
1504 | dSP; |
1505 | I32 cxix; |
1506 | register CONTEXT *cx; |
f86702cc |
1507 | struct block_loop cxloop; |
1508 | struct block_sub cxsub; |
1509 | I32 pop2 = 0; |
a0d0e21e |
1510 | I32 gimme; |
1511 | I32 optype; |
1512 | OP *nextop; |
1513 | SV **newsp; |
1514 | PMOP *newpm; |
1515 | SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
1516 | |
1517 | if (op->op_flags & OPf_SPECIAL) { |
1518 | cxix = dopoptoloop(cxstack_ix); |
1519 | if (cxix < 0) |
1520 | DIE("Can't \"last\" outside a block"); |
1521 | } |
1522 | else { |
1523 | cxix = dopoptolabel(cPVOP->op_pv); |
1524 | if (cxix < 0) |
1525 | DIE("Label not found for \"last %s\"", cPVOP->op_pv); |
1526 | } |
1527 | if (cxix < cxstack_ix) |
1528 | dounwind(cxix); |
1529 | |
1530 | POPBLOCK(cx,newpm); |
1531 | switch (cx->cx_type) { |
1532 | case CXt_LOOP: |
f86702cc |
1533 | POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */ |
1534 | pop2 = CXt_LOOP; |
4fdae800 |
1535 | nextop = cxloop.last_op->op_next; |
a0d0e21e |
1536 | break; |
f86702cc |
1537 | case CXt_SUB: |
1538 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1539 | pop2 = CXt_SUB; |
a0d0e21e |
1540 | nextop = pop_return(); |
1541 | break; |
f86702cc |
1542 | case CXt_EVAL: |
1543 | POPEVAL(cx); |
a0d0e21e |
1544 | nextop = pop_return(); |
1545 | break; |
1546 | default: |
1547 | DIE("panic: last"); |
a0d0e21e |
1548 | } |
1549 | |
a1f49e72 |
1550 | TAINT_NOT; |
a0d0e21e |
1551 | if (gimme == G_SCALAR) { |
f86702cc |
1552 | if (MARK < SP) |
1553 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) |
1554 | ? *SP : sv_mortalcopy(*SP); |
a0d0e21e |
1555 | else |
1556 | *++newsp = &sv_undef; |
1557 | } |
54310121 |
1558 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1559 | while (++MARK <= SP) { |
f86702cc |
1560 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
1561 | ? *MARK : sv_mortalcopy(*MARK); |
a1f49e72 |
1562 | TAINT_NOT; /* Each item is independent */ |
1563 | } |
f86702cc |
1564 | } |
1565 | SP = newsp; |
1566 | PUTBACK; |
1567 | |
1568 | /* Stack values are safe: */ |
1569 | switch (pop2) { |
1570 | case CXt_LOOP: |
1571 | POPLOOP2(); /* release loop vars ... */ |
4fdae800 |
1572 | LEAVE; |
f86702cc |
1573 | break; |
1574 | case CXt_SUB: |
1575 | POPSUB2(); /* release CV and @_ ... */ |
1576 | break; |
a0d0e21e |
1577 | } |
f86702cc |
1578 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1579 | |
1580 | LEAVE; |
f86702cc |
1581 | return nextop; |
a0d0e21e |
1582 | } |
1583 | |
1584 | PP(pp_next) |
1585 | { |
1586 | I32 cxix; |
1587 | register CONTEXT *cx; |
1588 | I32 oldsave; |
1589 | |
1590 | if (op->op_flags & OPf_SPECIAL) { |
1591 | cxix = dopoptoloop(cxstack_ix); |
1592 | if (cxix < 0) |
1593 | DIE("Can't \"next\" outside a block"); |
1594 | } |
1595 | else { |
1596 | cxix = dopoptolabel(cPVOP->op_pv); |
1597 | if (cxix < 0) |
1598 | DIE("Label not found for \"next %s\"", cPVOP->op_pv); |
1599 | } |
1600 | if (cxix < cxstack_ix) |
1601 | dounwind(cxix); |
1602 | |
1603 | TOPBLOCK(cx); |
1604 | oldsave = scopestack[scopestack_ix - 1]; |
1605 | LEAVE_SCOPE(oldsave); |
1606 | return cx->blk_loop.next_op; |
1607 | } |
1608 | |
1609 | PP(pp_redo) |
1610 | { |
1611 | I32 cxix; |
1612 | register CONTEXT *cx; |
1613 | I32 oldsave; |
1614 | |
1615 | if (op->op_flags & OPf_SPECIAL) { |
1616 | cxix = dopoptoloop(cxstack_ix); |
1617 | if (cxix < 0) |
1618 | DIE("Can't \"redo\" outside a block"); |
1619 | } |
1620 | else { |
1621 | cxix = dopoptolabel(cPVOP->op_pv); |
1622 | if (cxix < 0) |
1623 | DIE("Label not found for \"redo %s\"", cPVOP->op_pv); |
1624 | } |
1625 | if (cxix < cxstack_ix) |
1626 | dounwind(cxix); |
1627 | |
1628 | TOPBLOCK(cx); |
1629 | oldsave = scopestack[scopestack_ix - 1]; |
1630 | LEAVE_SCOPE(oldsave); |
1631 | return cx->blk_loop.redo_op; |
1632 | } |
1633 | |
1634 | static OP* lastgotoprobe; |
1635 | |
1636 | static OP * |
fc36a67e |
1637 | dofindlabel(op,label,opstack,oplimit) |
a0d0e21e |
1638 | OP *op; |
1639 | char *label; |
1640 | OP **opstack; |
fc36a67e |
1641 | OP **oplimit; |
a0d0e21e |
1642 | { |
1643 | OP *kid; |
1644 | OP **ops = opstack; |
fc36a67e |
1645 | static char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e |
1646 | |
fc36a67e |
1647 | if (ops >= oplimit) |
1648 | croak(too_deep); |
a0d0e21e |
1649 | if (op->op_type == OP_LEAVE || |
1650 | op->op_type == OP_SCOPE || |
1651 | op->op_type == OP_LEAVELOOP || |
1652 | op->op_type == OP_LEAVETRY) |
fc36a67e |
1653 | { |
1654 | *ops++ = cUNOP->op_first; |
1655 | if (ops >= oplimit) |
1656 | croak(too_deep); |
1657 | } |
a0d0e21e |
1658 | *ops = 0; |
1659 | if (op->op_flags & OPf_KIDS) { |
1660 | /* First try all the kids at this level, since that's likeliest. */ |
1661 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1662 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
1663 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) |
1664 | return kid; |
1665 | } |
1666 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1667 | if (kid == lastgotoprobe) |
1668 | continue; |
fc36a67e |
1669 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
1670 | (ops == opstack || |
1671 | (ops[-1]->op_type != OP_NEXTSTATE && |
1672 | ops[-1]->op_type != OP_DBSTATE))) |
1673 | *ops++ = kid; |
1674 | if (op = dofindlabel(kid, label, ops, oplimit)) |
a0d0e21e |
1675 | return op; |
1676 | } |
1677 | } |
1678 | *ops = 0; |
1679 | return 0; |
1680 | } |
1681 | |
1682 | PP(pp_dump) |
1683 | { |
1684 | return pp_goto(ARGS); |
1685 | /*NOTREACHED*/ |
1686 | } |
1687 | |
1688 | PP(pp_goto) |
1689 | { |
1690 | dSP; |
1691 | OP *retop = 0; |
1692 | I32 ix; |
1693 | register CONTEXT *cx; |
fc36a67e |
1694 | #define GOTO_DEPTH 64 |
1695 | OP *enterops[GOTO_DEPTH]; |
a0d0e21e |
1696 | char *label; |
1697 | int do_dump = (op->op_type == OP_DUMP); |
1698 | |
1699 | label = 0; |
1700 | if (op->op_flags & OPf_STACKED) { |
1701 | SV *sv = POPs; |
1702 | |
1703 | /* This egregious kludge implements goto &subroutine */ |
1704 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { |
1705 | I32 cxix; |
1706 | register CONTEXT *cx; |
1707 | CV* cv = (CV*)SvRV(sv); |
1708 | SV** mark; |
1709 | I32 items = 0; |
1710 | I32 oldsave; |
1711 | |
4aa0a1f7 |
1712 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1713 | if (CvGV(cv)) { |
1714 | SV *tmpstr = sv_newmortal(); |
e5cf08de |
1715 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
4aa0a1f7 |
1716 | DIE("Goto undefined subroutine &%s",SvPVX(tmpstr)); |
1717 | } |
1718 | DIE("Goto undefined subroutine"); |
1719 | } |
1720 | |
a0d0e21e |
1721 | /* First do some returnish stuff. */ |
1722 | cxix = dopoptosub(cxstack_ix); |
1723 | if (cxix < 0) |
1724 | DIE("Can't goto subroutine outside a subroutine"); |
1725 | if (cxix < cxstack_ix) |
1726 | dounwind(cxix); |
1727 | TOPBLOCK(cx); |
1728 | mark = stack_sp; |
1729 | if (cx->blk_sub.hasargs) { /* put @_ back onto stack */ |
1730 | AV* av = cx->blk_sub.argarray; |
1731 | |
1732 | items = AvFILL(av) + 1; |
1ce6579f |
1733 | stack_sp++; |
1734 | EXTEND(stack_sp, items); /* @_ could have been extended. */ |
1735 | Copy(AvARRAY(av), stack_sp, items, SV*); |
a0d0e21e |
1736 | stack_sp += items; |
2c05e328 |
1737 | SvREFCNT_dec(GvAV(defgv)); |
a0d0e21e |
1738 | GvAV(defgv) = cx->blk_sub.savearray; |
a0d0e21e |
1739 | AvREAL_off(av); |
4633a7c4 |
1740 | av_clear(av); |
a0d0e21e |
1741 | } |
1742 | if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
1743 | SvREFCNT_dec(cx->blk_sub.cv); |
1744 | oldsave = scopestack[scopestack_ix - 1]; |
1745 | LEAVE_SCOPE(oldsave); |
1746 | |
1747 | /* Now do some callish stuff. */ |
1748 | SAVETMPS; |
1749 | if (CvXSUB(cv)) { |
1750 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1751 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1752 | while (sp > mark) { |
1753 | sp[1] = sp[0]; |
1754 | sp--; |
1755 | } |
ecfc5424 |
1756 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1757 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1758 | mark - stack_base + 1, |
1759 | items); |
a0d0e21e |
1760 | sp = stack_base + items; |
1761 | } |
1762 | else { |
1ce6579f |
1763 | stack_sp--; /* There is no cv arg. */ |
a0d0e21e |
1764 | (void)(*CvXSUB(cv))(cv); |
1765 | } |
1766 | LEAVE; |
1767 | return pop_return(); |
1768 | } |
1769 | else { |
1770 | AV* padlist = CvPADLIST(cv); |
1771 | SV** svp = AvARRAY(padlist); |
1772 | cx->blk_sub.cv = cv; |
1773 | cx->blk_sub.olddepth = CvDEPTH(cv); |
1774 | CvDEPTH(cv)++; |
1775 | if (CvDEPTH(cv) < 2) |
1776 | (void)SvREFCNT_inc(cv); |
1777 | else { /* save temporaries on recursion? */ |
1778 | if (CvDEPTH(cv) == 100 && dowarn) |
44a8e56a |
1779 | sub_crush_depth(cv); |
a0d0e21e |
1780 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1781 | AV *newpad = newAV(); |
4aa0a1f7 |
1782 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1783 | I32 ix = AvFILL((AV*)svp[1]); |
1784 | svp = AvARRAY(svp[0]); |
748a9306 |
1785 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1786 | if (svp[ix] != &sv_undef) { |
748a9306 |
1787 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1788 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) |
1789 | || *name == '&') |
1790 | { |
1791 | /* outer lexical or anon code */ |
748a9306 |
1792 | av_store(newpad, ix, |
4aa0a1f7 |
1793 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 |
1794 | } |
1795 | else { /* our own lexical */ |
1796 | if (*name == '@') |
1797 | av_store(newpad, ix, sv = (SV*)newAV()); |
1798 | else if (*name == '%') |
1799 | av_store(newpad, ix, sv = (SV*)newHV()); |
1800 | else |
1801 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1802 | SvPADMY_on(sv); |
1803 | } |
a0d0e21e |
1804 | } |
1805 | else { |
748a9306 |
1806 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1807 | SvPADTMP_on(sv); |
1808 | } |
1809 | } |
1810 | if (cx->blk_sub.hasargs) { |
1811 | AV* av = newAV(); |
1812 | av_extend(av, 0); |
1813 | av_store(newpad, 0, (SV*)av); |
1814 | AvFLAGS(av) = AVf_REIFY; |
1815 | } |
1816 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1817 | AvFILL(padlist) = CvDEPTH(cv); |
1818 | svp = AvARRAY(padlist); |
1819 | } |
1820 | } |
1821 | SAVESPTR(curpad); |
1822 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1823 | if (cx->blk_sub.hasargs) { |
1824 | AV* av = (AV*)curpad[0]; |
1825 | SV** ary; |
1826 | |
1827 | cx->blk_sub.savearray = GvAV(defgv); |
1828 | cx->blk_sub.argarray = av; |
2c05e328 |
1829 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
a0d0e21e |
1830 | ++mark; |
1831 | |
1832 | if (items >= AvMAX(av) + 1) { |
1833 | ary = AvALLOC(av); |
1834 | if (AvARRAY(av) != ary) { |
1835 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1836 | SvPVX(av) = (char*)ary; |
1837 | } |
1838 | if (items >= AvMAX(av) + 1) { |
1839 | AvMAX(av) = items - 1; |
1840 | Renew(ary,items+1,SV*); |
1841 | AvALLOC(av) = ary; |
1842 | SvPVX(av) = (char*)ary; |
1843 | } |
1844 | } |
1845 | Copy(mark,AvARRAY(av),items,SV*); |
1846 | AvFILL(av) = items - 1; |
1847 | |
1848 | while (items--) { |
1849 | if (*mark) |
1850 | SvTEMP_off(*mark); |
1851 | mark++; |
1852 | } |
1853 | } |
f967eb5f |
1854 | if (perldb && curstash != debstash) { |
44a8e56a |
1855 | /* |
1856 | * We do not care about using sv to call CV; |
1857 | * it's for informational purposes only. |
1858 | */ |
1ce6579f |
1859 | SV *sv = GvSV(DBsub); |
1860 | save_item(sv); |
e5cf08de |
1861 | gv_efullname3(sv, CvGV(cv), Nullch); |
1ce6579f |
1862 | } |
a0d0e21e |
1863 | RETURNOP(CvSTART(cv)); |
1864 | } |
1865 | } |
1866 | else |
1867 | label = SvPV(sv,na); |
1868 | } |
1869 | else if (op->op_flags & OPf_SPECIAL) { |
1870 | if (! do_dump) |
1871 | DIE("goto must have label"); |
1872 | } |
1873 | else |
1874 | label = cPVOP->op_pv; |
1875 | |
1876 | if (label && *label) { |
1877 | OP *gotoprobe = 0; |
1878 | |
1879 | /* find label */ |
1880 | |
1881 | lastgotoprobe = 0; |
1882 | *enterops = 0; |
1883 | for (ix = cxstack_ix; ix >= 0; ix--) { |
1884 | cx = &cxstack[ix]; |
1885 | switch (cx->cx_type) { |
a0d0e21e |
1886 | case CXt_EVAL: |
1887 | gotoprobe = eval_root; /* XXX not good for nested eval */ |
1888 | break; |
1889 | case CXt_LOOP: |
1890 | gotoprobe = cx->blk_oldcop->op_sibling; |
1891 | break; |
1892 | case CXt_SUBST: |
1893 | continue; |
1894 | case CXt_BLOCK: |
1895 | if (ix) |
1896 | gotoprobe = cx->blk_oldcop->op_sibling; |
1897 | else |
1898 | gotoprobe = main_root; |
1899 | break; |
b3933176 |
1900 | case CXt_SUB: |
1901 | if (CvDEPTH(cx->blk_sub.cv)) { |
1902 | gotoprobe = CvROOT(cx->blk_sub.cv); |
1903 | break; |
1904 | } |
1905 | /* FALL THROUGH */ |
0a753a76 |
1906 | case CXt_NULL: |
1907 | DIE("Can't \"goto\" outside a block"); |
a0d0e21e |
1908 | default: |
1909 | if (ix) |
1910 | DIE("panic: goto"); |
68dc0745 |
1911 | gotoprobe = main_root; |
a0d0e21e |
1912 | break; |
1913 | } |
fc36a67e |
1914 | retop = dofindlabel(gotoprobe, label, |
1915 | enterops, enterops + GOTO_DEPTH); |
a0d0e21e |
1916 | if (retop) |
1917 | break; |
1918 | lastgotoprobe = gotoprobe; |
1919 | } |
1920 | if (!retop) |
1921 | DIE("Can't find label %s", label); |
1922 | |
1923 | /* pop unwanted frames */ |
1924 | |
1925 | if (ix < cxstack_ix) { |
1926 | I32 oldsave; |
1927 | |
1928 | if (ix < 0) |
1929 | ix = 0; |
1930 | dounwind(ix); |
1931 | TOPBLOCK(cx); |
1932 | oldsave = scopestack[scopestack_ix]; |
1933 | LEAVE_SCOPE(oldsave); |
1934 | } |
1935 | |
1936 | /* push wanted frames */ |
1937 | |
748a9306 |
1938 | if (*enterops && enterops[1]) { |
a0d0e21e |
1939 | OP *oldop = op; |
748a9306 |
1940 | for (ix = 1; enterops[ix]; ix++) { |
a0d0e21e |
1941 | op = enterops[ix]; |
1942 | (*op->op_ppaddr)(); |
1943 | } |
1944 | op = oldop; |
1945 | } |
1946 | } |
1947 | |
1948 | if (do_dump) { |
a5f75d66 |
1949 | #ifdef VMS |
1950 | if (!retop) retop = main_start; |
1951 | #endif |
a0d0e21e |
1952 | restartop = retop; |
1953 | do_undump = TRUE; |
1954 | |
1955 | my_unexec(); |
1956 | |
1957 | restartop = 0; /* hmm, must be GNU unexec().. */ |
1958 | do_undump = FALSE; |
1959 | } |
1960 | |
1ce6579f |
1961 | if (curstack == signalstack) { |
748a9306 |
1962 | restartop = retop; |
54310121 |
1963 | JMPENV_JUMP(3); |
748a9306 |
1964 | } |
1965 | |
a0d0e21e |
1966 | RETURNOP(retop); |
1967 | } |
1968 | |
1969 | PP(pp_exit) |
1970 | { |
1971 | dSP; |
1972 | I32 anum; |
1973 | |
1974 | if (MAXARG < 1) |
1975 | anum = 0; |
ff0cee69 |
1976 | else { |
a0d0e21e |
1977 | anum = SvIVx(POPs); |
ff0cee69 |
1978 | #ifdef VMSISH_EXIT |
1979 | if (anum == 1 && VMSISH_EXIT) |
1980 | anum = 0; |
1981 | #endif |
1982 | } |
a0d0e21e |
1983 | my_exit(anum); |
1984 | PUSHs(&sv_undef); |
1985 | RETURN; |
1986 | } |
1987 | |
1988 | #ifdef NOTYET |
1989 | PP(pp_nswitch) |
1990 | { |
1991 | dSP; |
1992 | double value = SvNVx(GvSV(cCOP->cop_gv)); |
1993 | register I32 match = I_32(value); |
1994 | |
1995 | if (value < 0.0) { |
1996 | if (((double)match) > value) |
1997 | --match; /* was fractional--truncate other way */ |
1998 | } |
1999 | match -= cCOP->uop.scop.scop_offset; |
2000 | if (match < 0) |
2001 | match = 0; |
2002 | else if (match > cCOP->uop.scop.scop_max) |
2003 | match = cCOP->uop.scop.scop_max; |
2004 | op = cCOP->uop.scop.scop_next[match]; |
2005 | RETURNOP(op); |
2006 | } |
2007 | |
2008 | PP(pp_cswitch) |
2009 | { |
2010 | dSP; |
2011 | register I32 match; |
2012 | |
2013 | if (multiline) |
2014 | op = op->op_next; /* can't assume anything */ |
2015 | else { |
2016 | match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255; |
2017 | match -= cCOP->uop.scop.scop_offset; |
2018 | if (match < 0) |
2019 | match = 0; |
2020 | else if (match > cCOP->uop.scop.scop_max) |
2021 | match = cCOP->uop.scop.scop_max; |
2022 | op = cCOP->uop.scop.scop_next[match]; |
2023 | } |
2024 | RETURNOP(op); |
2025 | } |
2026 | #endif |
2027 | |
2028 | /* Eval. */ |
2029 | |
2030 | static void |
2031 | save_lines(array, sv) |
2032 | AV *array; |
2033 | SV *sv; |
2034 | { |
2035 | register char *s = SvPVX(sv); |
2036 | register char *send = SvPVX(sv) + SvCUR(sv); |
2037 | register char *t; |
2038 | register I32 line = 1; |
2039 | |
2040 | while (s && s < send) { |
2041 | SV *tmpstr = NEWSV(85,0); |
2042 | |
2043 | sv_upgrade(tmpstr, SVt_PVMG); |
2044 | t = strchr(s, '\n'); |
2045 | if (t) |
2046 | t++; |
2047 | else |
2048 | t = send; |
2049 | |
2050 | sv_setpvn(tmpstr, s, t - s); |
2051 | av_store(array, line++, tmpstr); |
2052 | s = t; |
2053 | } |
2054 | } |
2055 | |
2056 | static OP * |
1e422769 |
2057 | docatch(o) |
2058 | OP *o; |
2059 | { |
2060 | int ret; |
035902c7 |
2061 | I32 oldrunlevel = runlevel; |
1e422769 |
2062 | OP *oldop = op; |
54310121 |
2063 | dJMPENV; |
1e422769 |
2064 | |
2065 | op = o; |
1e422769 |
2066 | #ifdef DEBUGGING |
54310121 |
2067 | assert(CATCH_GET == TRUE); |
035902c7 |
2068 | DEBUG_l(deb("(Setting up local jumplevel, runlevel = %ld)\n", (long)runlevel+1)); |
1e422769 |
2069 | #endif |
22921e25 |
2070 | JMPENV_PUSH(ret); |
2071 | switch (ret) { |
1e422769 |
2072 | default: /* topmost level handles it */ |
54310121 |
2073 | JMPENV_POP; |
1e422769 |
2074 | runlevel = oldrunlevel; |
1e422769 |
2075 | op = oldop; |
54310121 |
2076 | JMPENV_JUMP(ret); |
1e422769 |
2077 | /* NOTREACHED */ |
2078 | case 3: |
2079 | if (!restartop) { |
2080 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
2081 | break; |
2082 | } |
1e422769 |
2083 | op = restartop; |
2084 | restartop = 0; |
2085 | /* FALL THROUGH */ |
2086 | case 0: |
2087 | runops(); |
2088 | break; |
2089 | } |
54310121 |
2090 | JMPENV_POP; |
1e422769 |
2091 | runlevel = oldrunlevel; |
1e422769 |
2092 | op = oldop; |
2093 | return Nullop; |
2094 | } |
2095 | |
2096 | static OP * |
a0d0e21e |
2097 | doeval(gimme) |
2098 | int gimme; |
2099 | { |
2100 | dSP; |
2101 | OP *saveop = op; |
2102 | HV *newstash; |
ff3ff8d1 |
2103 | CV *caller; |
748a9306 |
2104 | AV* comppadlist; |
a0d0e21e |
2105 | |
2106 | in_eval = 1; |
2107 | |
1ce6579f |
2108 | PUSHMARK(SP); |
2109 | |
a0d0e21e |
2110 | /* set up a scratch pad */ |
2111 | |
55497cff |
2112 | SAVEI32(padix); |
a0d0e21e |
2113 | SAVESPTR(curpad); |
2114 | SAVESPTR(comppad); |
2115 | SAVESPTR(comppad_name); |
55497cff |
2116 | SAVEI32(comppad_name_fill); |
2117 | SAVEI32(min_intro_pending); |
2118 | SAVEI32(max_intro_pending); |
748a9306 |
2119 | |
ff3ff8d1 |
2120 | caller = compcv; |
748a9306 |
2121 | SAVESPTR(compcv); |
2122 | compcv = (CV*)NEWSV(1104,0); |
2123 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c |
2124 | CvUNIQUE_on(compcv); |
748a9306 |
2125 | |
a0d0e21e |
2126 | comppad = newAV(); |
2127 | comppad_name = newAV(); |
2128 | comppad_name_fill = 0; |
2129 | min_intro_pending = 0; |
2130 | av_push(comppad, Nullsv); |
2131 | curpad = AvARRAY(comppad); |
2132 | padix = 0; |
2133 | |
748a9306 |
2134 | comppadlist = newAV(); |
2135 | AvREAL_off(comppadlist); |
8e07c86e |
2136 | av_store(comppadlist, 0, (SV*)comppad_name); |
2137 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
2138 | CvPADLIST(compcv) = comppadlist; |
2c05e328 |
2139 | |
2140 | if (saveop->op_type != OP_REQUIRE) |
2141 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(caller); |
07055b4c |
2142 | |
8e07c86e |
2143 | SAVEFREESV(compcv); |
748a9306 |
2144 | |
a0d0e21e |
2145 | /* make sure we compile in the right package */ |
2146 | |
2147 | newstash = curcop->cop_stash; |
2148 | if (curstash != newstash) { |
2149 | SAVESPTR(curstash); |
2150 | curstash = newstash; |
2151 | } |
2152 | SAVESPTR(beginav); |
2153 | beginav = newAV(); |
2154 | SAVEFREESV(beginav); |
2155 | |
2156 | /* try to compile it */ |
2157 | |
2158 | eval_root = Nullop; |
2159 | error_count = 0; |
2160 | curcop = &compiling; |
2161 | curcop->cop_arybase = 0; |
c07a80fd |
2162 | SvREFCNT_dec(rs); |
2163 | rs = newSVpv("\n", 1); |
1ce6579f |
2164 | if (saveop->op_flags & OPf_SPECIAL) |
2165 | in_eval |= 4; |
2166 | else |
2167 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2168 | if (yyparse() || error_count || !eval_root) { |
2169 | SV **newsp; |
2170 | I32 gimme; |
2171 | CONTEXT *cx; |
2172 | I32 optype; |
2173 | |
2174 | op = saveop; |
2175 | if (eval_root) { |
2176 | op_free(eval_root); |
2177 | eval_root = Nullop; |
2178 | } |
1ce6579f |
2179 | SP = stack_base + POPMARK; /* pop original mark */ |
a0d0e21e |
2180 | POPBLOCK(cx,curpm); |
2181 | POPEVAL(cx); |
2182 | pop_return(); |
2183 | lex_end(); |
2184 | LEAVE; |
7a2e2cd6 |
2185 | if (optype == OP_REQUIRE) { |
2186 | char* msg = SvPVx(GvSV(errgv), na); |
2187 | DIE("%s", *msg ? msg : "Compilation failed in require"); |
2188 | } |
c07a80fd |
2189 | SvREFCNT_dec(rs); |
2190 | rs = SvREFCNT_inc(nrs); |
a0d0e21e |
2191 | RETPUSHUNDEF; |
2192 | } |
c07a80fd |
2193 | SvREFCNT_dec(rs); |
2194 | rs = SvREFCNT_inc(nrs); |
a0d0e21e |
2195 | compiling.cop_line = 0; |
a0d0e21e |
2196 | SAVEFREEOP(eval_root); |
54310121 |
2197 | if (gimme & G_VOID) |
2198 | scalarvoid(eval_root); |
2199 | else if (gimme & G_ARRAY) |
a0d0e21e |
2200 | list(eval_root); |
2201 | else |
2202 | scalar(eval_root); |
2203 | |
2204 | DEBUG_x(dump_eval()); |
2205 | |
55497cff |
2206 | /* Register with debugger: */ |
55497cff |
2207 | if (perldb && saveop->op_type == OP_REQUIRE) { |
2208 | CV *cv = perl_get_cv("DB::postponed", FALSE); |
55497cff |
2209 | if (cv) { |
2210 | dSP; |
2211 | PUSHMARK(sp); |
2212 | XPUSHs((SV*)compiling.cop_filegv); |
2213 | PUTBACK; |
2214 | perl_call_sv((SV*)cv, G_DISCARD); |
2215 | } |
2216 | } |
2217 | |
a0d0e21e |
2218 | /* compiled okay, so do it */ |
2219 | |
4fdae800 |
2220 | CvDEPTH(compcv) = 1; |
2221 | |
1ce6579f |
2222 | SP = stack_base + POPMARK; /* pop original mark */ |
a0d0e21e |
2223 | RETURNOP(eval_start); |
2224 | } |
2225 | |
2226 | PP(pp_require) |
2227 | { |
2228 | dSP; |
2229 | register CONTEXT *cx; |
2230 | SV *sv; |
2231 | char *name; |
46fc3d4c |
2232 | char *tryname; |
2233 | SV *namesv = Nullsv; |
a0d0e21e |
2234 | SV** svp; |
2235 | I32 gimme = G_SCALAR; |
760ac839 |
2236 | PerlIO *tryrsfp = 0; |
a0d0e21e |
2237 | |
2238 | sv = POPs; |
4633a7c4 |
2239 | if (SvNIOKp(sv) && !SvPOKp(sv)) { |
36477c24 |
2240 | SET_NUMERIC_STANDARD(); |
a5f75d66 |
2241 | if (atof(patchlevel) + 0.00000999 < SvNV(sv)) |
2242 | DIE("Perl %s required--this is only version %s, stopped", |
2243 | SvPV(sv,na),patchlevel); |
a0d0e21e |
2244 | RETPUSHYES; |
2245 | } |
2246 | name = SvPV(sv, na); |
2247 | if (!*name) |
2248 | DIE("Null filename used"); |
4633a7c4 |
2249 | TAINT_PROPER("require"); |
a0d0e21e |
2250 | if (op->op_type == OP_REQUIRE && |
2251 | (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) && |
2252 | *svp != &sv_undef) |
2253 | RETPUSHYES; |
2254 | |
2255 | /* prepare to compile file */ |
2256 | |
46fc3d4c |
2257 | if (*name == '/' || |
2258 | (*name == '.' && |
2259 | (name[1] == '/' || |
2260 | (name[1] == '.' && name[2] == '/'))) |
4633a7c4 |
2261 | #ifdef DOSISH |
46fc3d4c |
2262 | || (name[0] && name[1] == ':') |
4633a7c4 |
2263 | #endif |
748a9306 |
2264 | #ifdef VMS |
46fc3d4c |
2265 | || (strchr(name,':') || ((*name == '[' || *name == '<') && |
2266 | (isALNUM(name[1]) || strchr("$-_]>",name[1])))) |
748a9306 |
2267 | #endif |
2268 | ) |
a0d0e21e |
2269 | { |
46fc3d4c |
2270 | tryname = name; |
2271 | tryrsfp = PerlIO_open(name,"r"); |
a0d0e21e |
2272 | } |
2273 | else { |
2274 | AV *ar = GvAVn(incgv); |
2275 | I32 i; |
748a9306 |
2276 | #ifdef VMS |
46fc3d4c |
2277 | char *unixname; |
2278 | if ((unixname = tounixspec(name, Nullch)) != Nullch) |
2279 | #endif |
2280 | { |
2281 | namesv = NEWSV(806, 0); |
2282 | for (i = 0; i <= AvFILL(ar); i++) { |
2283 | char *dir = SvPVx(*av_fetch(ar, i, TRUE), na); |
2284 | #ifdef VMS |
2285 | char *unixdir; |
2286 | if ((unixdir = tounixpath(dir, Nullch)) == Nullch) |
2287 | continue; |
2288 | sv_setpv(namesv, unixdir); |
2289 | sv_catpv(namesv, unixname); |
748a9306 |
2290 | #else |
46fc3d4c |
2291 | sv_setpvf(namesv, "%s/%s", dir, name); |
748a9306 |
2292 | #endif |
46fc3d4c |
2293 | tryname = SvPVX(namesv); |
2294 | tryrsfp = PerlIO_open(tryname, "r"); |
2295 | if (tryrsfp) { |
2296 | if (tryname[0] == '.' && tryname[1] == '/') |
2297 | tryname += 2; |
2298 | break; |
2299 | } |
a0d0e21e |
2300 | } |
2301 | } |
2302 | } |
2303 | SAVESPTR(compiling.cop_filegv); |
46fc3d4c |
2304 | compiling.cop_filegv = gv_fetchfile(tryrsfp ? tryname : name); |
2305 | SvREFCNT_dec(namesv); |
a0d0e21e |
2306 | if (!tryrsfp) { |
2307 | if (op->op_type == OP_REQUIRE) { |
46fc3d4c |
2308 | SV *msg = sv_2mortal(newSVpvf("Can't locate %s in @INC", name)); |
2309 | if (instr(SvPVX(msg), ".h ")) |
2310 | sv_catpv(msg, " (change .h to .ph maybe?)"); |
2311 | if (instr(SvPVX(msg), ".ph ")) |
2312 | sv_catpv(msg, " (did you run h2ph?)"); |
fc36a67e |
2313 | DIE("%_", msg); |
a0d0e21e |
2314 | } |
2315 | |
2316 | RETPUSHUNDEF; |
2317 | } |
2318 | |
2319 | /* Assume success here to prevent recursive requirement. */ |
2320 | (void)hv_store(GvHVn(incgv), name, strlen(name), |
2321 | newSVsv(GvSV(compiling.cop_filegv)), 0 ); |
2322 | |
2323 | ENTER; |
2324 | SAVETMPS; |
2325 | lex_start(sv_2mortal(newSVpv("",0))); |
e50aee73 |
2326 | if (rsfp_filters){ |
2327 | save_aptr(&rsfp_filters); |
2328 | rsfp_filters = NULL; |
2329 | } |
2330 | |
a0d0e21e |
2331 | rsfp = tryrsfp; |
2332 | name = savepv(name); |
2333 | SAVEFREEPV(name); |
2334 | SAVEI32(hints); |
2335 | hints = 0; |
2336 | |
2337 | /* switch to eval mode */ |
2338 | |
2339 | push_return(op->op_next); |
2340 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2341 | PUSHEVAL(cx, name, compiling.cop_filegv); |
2342 | |
2343 | compiling.cop_line = 0; |
2344 | |
2345 | PUTBACK; |
1e422769 |
2346 | return DOCATCH(doeval(G_SCALAR)); |
a0d0e21e |
2347 | } |
2348 | |
2349 | PP(pp_dofile) |
2350 | { |
2351 | return pp_require(ARGS); |
2352 | } |
2353 | |
2354 | PP(pp_entereval) |
2355 | { |
2356 | dSP; |
2357 | register CONTEXT *cx; |
2358 | dPOPss; |
54310121 |
2359 | I32 gimme = GIMME_V, was = sub_generation; |
fc36a67e |
2360 | char tmpbuf[TYPE_DIGITS(long) + 12]; |
2361 | char *safestr; |
a0d0e21e |
2362 | STRLEN len; |
55497cff |
2363 | OP *ret; |
a0d0e21e |
2364 | |
2365 | if (!SvPV(sv,len) || !len) |
2366 | RETPUSHUNDEF; |
748a9306 |
2367 | TAINT_PROPER("eval"); |
a0d0e21e |
2368 | |
2369 | ENTER; |
a0d0e21e |
2370 | lex_start(sv); |
748a9306 |
2371 | SAVETMPS; |
a0d0e21e |
2372 | |
2373 | /* switch to eval mode */ |
2374 | |
748a9306 |
2375 | SAVESPTR(compiling.cop_filegv); |
ff0cee69 |
2376 | sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++evalseq); |
a0d0e21e |
2377 | compiling.cop_filegv = gv_fetchfile(tmpbuf+2); |
2378 | compiling.cop_line = 1; |
55497cff |
2379 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2380 | deleting the eval's FILEGV from the stash before gv_check() runs |
2381 | (i.e. before run-time proper). To work around the coredump that |
2382 | ensues, we always turn GvMULTI_on for any globals that were |
2383 | introduced within evals. See force_ident(). GSAR 96-10-12 */ |
2384 | safestr = savepv(tmpbuf); |
2385 | SAVEDELETE(defstash, safestr, strlen(safestr)); |
a0d0e21e |
2386 | SAVEI32(hints); |
2387 | hints = op->op_targ; |
2388 | |
2389 | push_return(op->op_next); |
2390 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2391 | PUSHEVAL(cx, 0, compiling.cop_filegv); |
2392 | |
2393 | /* prepare to compile string */ |
2394 | |
2395 | if (perldb && curstash != debstash) |
2396 | save_lines(GvAV(compiling.cop_filegv), linestr); |
2397 | PUTBACK; |
55497cff |
2398 | ret = doeval(gimme); |
2399 | if (perldb && was != sub_generation) { /* Some subs defined here. */ |
2400 | strcpy(safestr, "_<(eval )"); /* Anything fake and short. */ |
2401 | } |
1e422769 |
2402 | return DOCATCH(ret); |
a0d0e21e |
2403 | } |
2404 | |
2405 | PP(pp_leaveeval) |
2406 | { |
2407 | dSP; |
2408 | register SV **mark; |
2409 | SV **newsp; |
2410 | PMOP *newpm; |
2411 | I32 gimme; |
2412 | register CONTEXT *cx; |
2413 | OP *retop; |
760ac839 |
2414 | U8 save_flags = op -> op_flags; |
a0d0e21e |
2415 | I32 optype; |
2416 | |
2417 | POPBLOCK(cx,newpm); |
2418 | POPEVAL(cx); |
2419 | retop = pop_return(); |
2420 | |
a1f49e72 |
2421 | TAINT_NOT; |
54310121 |
2422 | if (gimme == G_VOID) |
2423 | MARK = newsp; |
2424 | else if (gimme == G_SCALAR) { |
2425 | MARK = newsp + 1; |
2426 | if (MARK <= SP) { |
2427 | if (SvFLAGS(TOPs) & SVs_TEMP) |
2428 | *MARK = TOPs; |
2429 | else |
2430 | *MARK = sv_mortalcopy(TOPs); |
2431 | } |
a0d0e21e |
2432 | else { |
54310121 |
2433 | MEXTEND(mark,0); |
2434 | *MARK = &sv_undef; |
a0d0e21e |
2435 | } |
a0d0e21e |
2436 | } |
2437 | else { |
a1f49e72 |
2438 | /* in case LEAVE wipes old return values */ |
2439 | for (mark = newsp + 1; mark <= SP; mark++) { |
2440 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { |
a0d0e21e |
2441 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
2442 | TAINT_NOT; /* Each item is independent */ |
2443 | } |
2444 | } |
a0d0e21e |
2445 | } |
2446 | curpm = newpm; /* Don't pop $1 et al till now */ |
2447 | |
4fdae800 |
2448 | #ifdef DEBUGGING |
2449 | assert(CvDEPTH(compcv) == 1); |
2450 | #endif |
2451 | CvDEPTH(compcv) = 0; |
2452 | |
1ce6579f |
2453 | if (optype == OP_REQUIRE && |
54310121 |
2454 | !(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) |
2455 | { |
1ce6579f |
2456 | /* Unassume the success we assumed earlier. */ |
54310121 |
2457 | char *name = cx->blk_eval.old_name; |
1ce6579f |
2458 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
2459 | retop = die("%s did not return a true value", name); |
a0d0e21e |
2460 | } |
2461 | |
2462 | lex_end(); |
2463 | LEAVE; |
4fdae800 |
2464 | |
760ac839 |
2465 | if (!(save_flags & OPf_SPECIAL)) |
1ce6579f |
2466 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2467 | |
2468 | RETURNOP(retop); |
2469 | } |
2470 | |
a0d0e21e |
2471 | PP(pp_entertry) |
2472 | { |
2473 | dSP; |
2474 | register CONTEXT *cx; |
54310121 |
2475 | I32 gimme = GIMME_V; |
a0d0e21e |
2476 | |
2477 | ENTER; |
2478 | SAVETMPS; |
2479 | |
2480 | push_return(cLOGOP->op_other->op_next); |
2481 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2482 | PUSHEVAL(cx, 0, 0); |
2483 | eval_root = op; /* Only needed so that goto works right. */ |
2484 | |
2485 | in_eval = 1; |
4633a7c4 |
2486 | sv_setpv(GvSV(errgv),""); |
1e422769 |
2487 | PUTBACK; |
2488 | return DOCATCH(op->op_next); |
a0d0e21e |
2489 | } |
2490 | |
2491 | PP(pp_leavetry) |
2492 | { |
2493 | dSP; |
2494 | register SV **mark; |
2495 | SV **newsp; |
2496 | PMOP *newpm; |
2497 | I32 gimme; |
2498 | register CONTEXT *cx; |
2499 | I32 optype; |
2500 | |
2501 | POPBLOCK(cx,newpm); |
2502 | POPEVAL(cx); |
2503 | pop_return(); |
2504 | |
a1f49e72 |
2505 | TAINT_NOT; |
54310121 |
2506 | if (gimme == G_VOID) |
2507 | SP = newsp; |
2508 | else if (gimme == G_SCALAR) { |
2509 | MARK = newsp + 1; |
2510 | if (MARK <= SP) { |
2511 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
2512 | *MARK = TOPs; |
2513 | else |
2514 | *MARK = sv_mortalcopy(TOPs); |
2515 | } |
a0d0e21e |
2516 | else { |
54310121 |
2517 | MEXTEND(mark,0); |
2518 | *MARK = &sv_undef; |
a0d0e21e |
2519 | } |
2520 | SP = MARK; |
2521 | } |
2522 | else { |
a1f49e72 |
2523 | /* in case LEAVE wipes old return values */ |
2524 | for (mark = newsp + 1; mark <= SP; mark++) { |
2525 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
2526 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
2527 | TAINT_NOT; /* Each item is independent */ |
2528 | } |
2529 | } |
a0d0e21e |
2530 | } |
2531 | curpm = newpm; /* Don't pop $1 et al till now */ |
2532 | |
2533 | LEAVE; |
4633a7c4 |
2534 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
2535 | RETURN; |
2536 | } |
2537 | |
2538 | static void |
2539 | doparseform(sv) |
2540 | SV *sv; |
2541 | { |
2542 | STRLEN len; |
2543 | register char *s = SvPV_force(sv, len); |
2544 | register char *send = s + len; |
2545 | register char *base; |
2546 | register I32 skipspaces = 0; |
2547 | bool noblank; |
2548 | bool repeat; |
2549 | bool postspace = FALSE; |
2550 | U16 *fops; |
2551 | register U16 *fpc; |
2552 | U16 *linepc; |
2553 | register I32 arg; |
2554 | bool ischop; |
2555 | |
55497cff |
2556 | if (len == 0) |
bbce6d69 |
2557 | croak("Null picture in formline"); |
55497cff |
2558 | |
2559 | New(804, fops, (send - s)*3+10, U16); /* Almost certainly too long... */ |
a0d0e21e |
2560 | fpc = fops; |
2561 | |
2562 | if (s < send) { |
2563 | linepc = fpc; |
2564 | *fpc++ = FF_LINEMARK; |
2565 | noblank = repeat = FALSE; |
2566 | base = s; |
2567 | } |
2568 | |
2569 | while (s <= send) { |
2570 | switch (*s++) { |
2571 | default: |
2572 | skipspaces = 0; |
2573 | continue; |
2574 | |
2575 | case '~': |
2576 | if (*s == '~') { |
2577 | repeat = TRUE; |
2578 | *s = ' '; |
2579 | } |
2580 | noblank = TRUE; |
2581 | s[-1] = ' '; |
2582 | /* FALL THROUGH */ |
2583 | case ' ': case '\t': |
2584 | skipspaces++; |
2585 | continue; |
2586 | |
2587 | case '\n': case 0: |
2588 | arg = s - base; |
2589 | skipspaces++; |
2590 | arg -= skipspaces; |
2591 | if (arg) { |
5f05dabc |
2592 | if (postspace) |
a0d0e21e |
2593 | *fpc++ = FF_SPACE; |
a0d0e21e |
2594 | *fpc++ = FF_LITERAL; |
2595 | *fpc++ = arg; |
2596 | } |
5f05dabc |
2597 | postspace = FALSE; |
a0d0e21e |
2598 | if (s <= send) |
2599 | skipspaces--; |
2600 | if (skipspaces) { |
2601 | *fpc++ = FF_SKIP; |
2602 | *fpc++ = skipspaces; |
2603 | } |
2604 | skipspaces = 0; |
2605 | if (s <= send) |
2606 | *fpc++ = FF_NEWLINE; |
2607 | if (noblank) { |
2608 | *fpc++ = FF_BLANK; |
2609 | if (repeat) |
2610 | arg = fpc - linepc + 1; |
2611 | else |
2612 | arg = 0; |
2613 | *fpc++ = arg; |
2614 | } |
2615 | if (s < send) { |
2616 | linepc = fpc; |
2617 | *fpc++ = FF_LINEMARK; |
2618 | noblank = repeat = FALSE; |
2619 | base = s; |
2620 | } |
2621 | else |
2622 | s++; |
2623 | continue; |
2624 | |
2625 | case '@': |
2626 | case '^': |
2627 | ischop = s[-1] == '^'; |
2628 | |
2629 | if (postspace) { |
2630 | *fpc++ = FF_SPACE; |
2631 | postspace = FALSE; |
2632 | } |
2633 | arg = (s - base) - 1; |
2634 | if (arg) { |
2635 | *fpc++ = FF_LITERAL; |
2636 | *fpc++ = arg; |
2637 | } |
2638 | |
2639 | base = s - 1; |
2640 | *fpc++ = FF_FETCH; |
2641 | if (*s == '*') { |
2642 | s++; |
2643 | *fpc++ = 0; |
2644 | *fpc++ = FF_LINEGLOB; |
2645 | } |
2646 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { |
2647 | arg = ischop ? 512 : 0; |
2648 | base = s - 1; |
2649 | while (*s == '#') |
2650 | s++; |
2651 | if (*s == '.') { |
2652 | char *f; |
2653 | s++; |
2654 | f = s; |
2655 | while (*s == '#') |
2656 | s++; |
2657 | arg |= 256 + (s - f); |
2658 | } |
2659 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2660 | *fpc++ = FF_DECIMAL; |
2661 | *fpc++ = arg; |
2662 | } |
2663 | else { |
2664 | I32 prespace = 0; |
2665 | bool ismore = FALSE; |
2666 | |
2667 | if (*s == '>') { |
2668 | while (*++s == '>') ; |
2669 | prespace = FF_SPACE; |
2670 | } |
2671 | else if (*s == '|') { |
2672 | while (*++s == '|') ; |
2673 | prespace = FF_HALFSPACE; |
2674 | postspace = TRUE; |
2675 | } |
2676 | else { |
2677 | if (*s == '<') |
2678 | while (*++s == '<') ; |
2679 | postspace = TRUE; |
2680 | } |
2681 | if (*s == '.' && s[1] == '.' && s[2] == '.') { |
2682 | s += 3; |
2683 | ismore = TRUE; |
2684 | } |
2685 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2686 | |
2687 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; |
2688 | |
2689 | if (prespace) |
2690 | *fpc++ = prespace; |
2691 | *fpc++ = FF_ITEM; |
2692 | if (ismore) |
2693 | *fpc++ = FF_MORE; |
2694 | if (ischop) |
2695 | *fpc++ = FF_CHOP; |
2696 | } |
2697 | base = s; |
2698 | skipspaces = 0; |
2699 | continue; |
2700 | } |
2701 | } |
2702 | *fpc++ = FF_END; |
2703 | |
2704 | arg = fpc - fops; |
2705 | { /* need to jump to the next word */ |
2706 | int z; |
2707 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; |
2708 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4); |
2709 | s = SvPVX(sv) + SvCUR(sv) + z; |
2710 | } |
2711 | Copy(fops, s, arg, U16); |
2712 | Safefree(fops); |
55497cff |
2713 | sv_magic(sv, Nullsv, 'f', Nullch, 0); |
a0d0e21e |
2714 | SvCOMPILED_on(sv); |
2715 | } |