Commit | Line | Data |
a0d0e21e |
1 | /* pp_ctl.c |
2 | * |
3 | * Copyright (c) 1991-1994, Larry Wall |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * Now far ahead the Road has gone, |
12 | * And I must follow, if I can, |
13 | * Pursuing it with eager feet, |
14 | * Until it joins some larger way |
15 | * Where many paths and errands meet. |
16 | * And whither then? I cannot say. |
17 | */ |
18 | |
19 | #include "EXTERN.h" |
20 | #include "perl.h" |
21 | |
22 | #ifndef WORD_ALIGN |
23 | #define WORD_ALIGN sizeof(U16) |
24 | #endif |
25 | |
26 | static OP *doeval _((int gimme)); |
27 | static OP *dofindlabel _((OP *op, char *label, OP **opstack)); |
28 | static void doparseform _((SV *sv)); |
29 | static I32 dopoptoeval _((I32 startingblock)); |
30 | static I32 dopoptolabel _((char *label)); |
31 | static I32 dopoptoloop _((I32 startingblock)); |
32 | static I32 dopoptosub _((I32 startingblock)); |
33 | static void save_lines _((AV *array, SV *sv)); |
34 | static int sortcmp _((const void *, const void *)); |
35 | static int sortcv _((const void *, const void *)); |
36 | |
37 | static I32 sortcxix; |
38 | |
39 | PP(pp_wantarray) |
40 | { |
41 | dSP; |
42 | I32 cxix; |
43 | EXTEND(SP, 1); |
44 | |
45 | cxix = dopoptosub(cxstack_ix); |
46 | if (cxix < 0) |
47 | RETPUSHUNDEF; |
48 | |
49 | if (cxstack[cxix].blk_gimme == G_ARRAY) |
50 | RETPUSHYES; |
51 | else |
52 | RETPUSHNO; |
53 | } |
54 | |
55 | PP(pp_regcmaybe) |
56 | { |
57 | return NORMAL; |
58 | } |
59 | |
60 | PP(pp_regcomp) { |
61 | dSP; |
62 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
63 | register char *t; |
64 | SV *tmpstr; |
65 | STRLEN len; |
66 | |
67 | tmpstr = POPs; |
68 | t = SvPV(tmpstr, len); |
69 | |
70 | if (pm->op_pmregexp) { |
e50aee73 |
71 | pregfree(pm->op_pmregexp); |
a0d0e21e |
72 | pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */ |
73 | } |
74 | |
e50aee73 |
75 | pm->op_pmregexp = pregcomp(t, t + len, pm); |
a0d0e21e |
76 | |
77 | if (!pm->op_pmregexp->prelen && curpm) |
78 | pm = curpm; |
79 | else if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
80 | pm->op_pmflags |= PMf_WHITE; |
81 | |
82 | if (pm->op_pmflags & PMf_KEEP) { |
a0d0e21e |
83 | pm->op_pmflags &= ~PMf_RUNTIME; /* no point compiling again */ |
84 | hoistmust(pm); |
85 | cLOGOP->op_first->op_next = op->op_next; |
a0d0e21e |
86 | } |
87 | RETURN; |
88 | } |
89 | |
90 | PP(pp_substcont) |
91 | { |
92 | dSP; |
93 | register PMOP *pm = (PMOP*) cLOGOP->op_other; |
94 | register CONTEXT *cx = &cxstack[cxstack_ix]; |
95 | register SV *dstr = cx->sb_dstr; |
96 | register char *s = cx->sb_s; |
97 | register char *m = cx->sb_m; |
98 | char *orig = cx->sb_orig; |
99 | register REGEXP *rx = pm->op_pmregexp; |
100 | |
101 | if (cx->sb_iters++) { |
102 | if (cx->sb_iters > cx->sb_maxiters) |
103 | DIE("Substitution loop"); |
104 | |
105 | sv_catsv(dstr, POPs); |
106 | if (rx->subbase) |
107 | Safefree(rx->subbase); |
108 | rx->subbase = cx->sb_subbase; |
109 | |
110 | /* Are we done */ |
e50aee73 |
111 | if (cx->sb_once || !pregexec(rx, s, cx->sb_strend, orig, |
a0d0e21e |
112 | s == m, Nullsv, cx->sb_safebase)) |
113 | { |
114 | SV *targ = cx->sb_targ; |
115 | sv_catpvn(dstr, s, cx->sb_strend - s); |
748a9306 |
116 | |
cb0b1708 |
117 | Safefree(SvPVX(targ)); |
748a9306 |
118 | SvPVX(targ) = SvPVX(dstr); |
119 | SvCUR_set(targ, SvCUR(dstr)); |
120 | SvLEN_set(targ, SvLEN(dstr)); |
121 | SvPVX(dstr) = 0; |
122 | sv_free(dstr); |
123 | |
a0d0e21e |
124 | (void)SvPOK_only(targ); |
125 | SvSETMAGIC(targ); |
126 | PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1))); |
127 | POPSUBST(cx); |
128 | RETURNOP(pm->op_next); |
129 | } |
130 | } |
131 | if (rx->subbase && rx->subbase != orig) { |
132 | m = s; |
133 | s = orig; |
134 | cx->sb_orig = orig = rx->subbase; |
135 | s = orig + (m - s); |
136 | cx->sb_strend = s + (cx->sb_strend - m); |
137 | } |
138 | cx->sb_m = m = rx->startp[0]; |
139 | sv_catpvn(dstr, s, m-s); |
140 | cx->sb_s = rx->endp[0]; |
141 | cx->sb_subbase = rx->subbase; |
142 | |
143 | rx->subbase = Nullch; /* so recursion works */ |
144 | RETURNOP(pm->op_pmreplstart); |
145 | } |
146 | |
147 | PP(pp_formline) |
148 | { |
149 | dSP; dMARK; dORIGMARK; |
150 | register SV *form = *++MARK; |
151 | register U16 *fpc; |
152 | register char *t; |
153 | register char *f; |
154 | register char *s; |
155 | register char *send; |
156 | register I32 arg; |
157 | register SV *sv; |
158 | char *item; |
159 | I32 itemsize; |
160 | I32 fieldsize; |
161 | I32 lines = 0; |
162 | bool chopspace = (strchr(chopset, ' ') != Nullch); |
163 | char *chophere; |
164 | char *linemark; |
a0d0e21e |
165 | double value; |
166 | bool gotsome; |
167 | STRLEN len; |
168 | |
169 | if (!SvCOMPILED(form)) { |
170 | SvREADONLY_off(form); |
171 | doparseform(form); |
172 | } |
173 | |
174 | SvPV_force(formtarget, len); |
175 | t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */ |
176 | t += len; |
177 | f = SvPV(form, len); |
178 | /* need to jump to the next word */ |
179 | s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN; |
180 | |
181 | fpc = (U16*)s; |
182 | |
183 | for (;;) { |
184 | DEBUG_f( { |
185 | char *name = "???"; |
186 | arg = -1; |
187 | switch (*fpc) { |
188 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; |
189 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; |
190 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; |
191 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; |
192 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; |
193 | |
194 | case FF_CHECKNL: name = "CHECKNL"; break; |
195 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; |
196 | case FF_SPACE: name = "SPACE"; break; |
197 | case FF_HALFSPACE: name = "HALFSPACE"; break; |
198 | case FF_ITEM: name = "ITEM"; break; |
199 | case FF_CHOP: name = "CHOP"; break; |
200 | case FF_LINEGLOB: name = "LINEGLOB"; break; |
201 | case FF_NEWLINE: name = "NEWLINE"; break; |
202 | case FF_MORE: name = "MORE"; break; |
203 | case FF_LINEMARK: name = "LINEMARK"; break; |
204 | case FF_END: name = "END"; break; |
205 | } |
206 | if (arg >= 0) |
207 | fprintf(stderr, "%-16s%ld\n", name, (long) arg); |
208 | else |
209 | fprintf(stderr, "%-16s\n", name); |
210 | } ) |
211 | switch (*fpc++) { |
212 | case FF_LINEMARK: |
213 | linemark = t; |
a0d0e21e |
214 | lines++; |
215 | gotsome = FALSE; |
216 | break; |
217 | |
218 | case FF_LITERAL: |
219 | arg = *fpc++; |
220 | while (arg--) |
221 | *t++ = *f++; |
222 | break; |
223 | |
224 | case FF_SKIP: |
225 | f += *fpc++; |
226 | break; |
227 | |
228 | case FF_FETCH: |
229 | arg = *fpc++; |
230 | f += arg; |
231 | fieldsize = arg; |
232 | |
233 | if (MARK < SP) |
234 | sv = *++MARK; |
235 | else { |
236 | sv = &sv_no; |
237 | if (dowarn) |
238 | warn("Not enough format arguments"); |
239 | } |
240 | break; |
241 | |
242 | case FF_CHECKNL: |
243 | item = s = SvPV(sv, len); |
244 | itemsize = len; |
245 | if (itemsize > fieldsize) |
246 | itemsize = fieldsize; |
247 | send = chophere = s + itemsize; |
248 | while (s < send) { |
249 | if (*s & ~31) |
250 | gotsome = TRUE; |
251 | else if (*s == '\n') |
252 | break; |
253 | s++; |
254 | } |
255 | itemsize = s - item; |
256 | break; |
257 | |
258 | case FF_CHECKCHOP: |
259 | item = s = SvPV(sv, len); |
260 | itemsize = len; |
261 | if (itemsize <= fieldsize) { |
262 | send = chophere = s + itemsize; |
263 | while (s < send) { |
264 | if (*s == '\r') { |
265 | itemsize = s - item; |
266 | break; |
267 | } |
268 | if (*s++ & ~31) |
269 | gotsome = TRUE; |
270 | } |
271 | } |
272 | else { |
273 | itemsize = fieldsize; |
274 | send = chophere = s + itemsize; |
275 | while (s < send || (s == send && isSPACE(*s))) { |
276 | if (isSPACE(*s)) { |
277 | if (chopspace) |
278 | chophere = s; |
279 | if (*s == '\r') |
280 | break; |
281 | } |
282 | else { |
283 | if (*s & ~31) |
284 | gotsome = TRUE; |
285 | if (strchr(chopset, *s)) |
286 | chophere = s + 1; |
287 | } |
288 | s++; |
289 | } |
290 | itemsize = chophere - item; |
291 | } |
292 | break; |
293 | |
294 | case FF_SPACE: |
295 | arg = fieldsize - itemsize; |
296 | if (arg) { |
297 | fieldsize -= arg; |
298 | while (arg-- > 0) |
299 | *t++ = ' '; |
300 | } |
301 | break; |
302 | |
303 | case FF_HALFSPACE: |
304 | arg = fieldsize - itemsize; |
305 | if (arg) { |
306 | arg /= 2; |
307 | fieldsize -= arg; |
308 | while (arg-- > 0) |
309 | *t++ = ' '; |
310 | } |
311 | break; |
312 | |
313 | case FF_ITEM: |
314 | arg = itemsize; |
315 | s = item; |
316 | while (arg--) { |
317 | #if 'z' - 'a' != 25 |
318 | int ch = *t++ = *s++; |
319 | if (!iscntrl(ch)) |
320 | t[-1] = ' '; |
321 | #else |
322 | if ( !((*t++ = *s++) & ~31) ) |
323 | t[-1] = ' '; |
324 | #endif |
325 | |
326 | } |
327 | break; |
328 | |
329 | case FF_CHOP: |
330 | s = chophere; |
331 | if (chopspace) { |
332 | while (*s && isSPACE(*s)) |
333 | s++; |
334 | } |
335 | sv_chop(sv,s); |
336 | break; |
337 | |
338 | case FF_LINEGLOB: |
339 | item = s = SvPV(sv, len); |
340 | itemsize = len; |
341 | if (itemsize) { |
342 | gotsome = TRUE; |
343 | send = s + itemsize; |
344 | while (s < send) { |
345 | if (*s++ == '\n') { |
346 | if (s == send) |
347 | itemsize--; |
348 | else |
349 | lines++; |
350 | } |
351 | } |
352 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
353 | sv_catpvn(formtarget, item, itemsize); |
354 | SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1); |
355 | t = SvPVX(formtarget) + SvCUR(formtarget); |
356 | } |
357 | break; |
358 | |
359 | case FF_DECIMAL: |
360 | /* If the field is marked with ^ and the value is undefined, |
361 | blank it out. */ |
362 | arg = *fpc++; |
363 | if ((arg & 512) && !SvOK(sv)) { |
364 | arg = fieldsize; |
365 | while (arg--) |
366 | *t++ = ' '; |
367 | break; |
368 | } |
369 | gotsome = TRUE; |
370 | value = SvNV(sv); |
371 | if (arg & 256) { |
372 | sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value); |
373 | } else { |
374 | sprintf(t, "%*.0f", (int) fieldsize, value); |
375 | } |
376 | t += fieldsize; |
377 | break; |
378 | |
379 | case FF_NEWLINE: |
380 | f++; |
381 | while (t-- > linemark && *t == ' ') ; |
382 | t++; |
383 | *t++ = '\n'; |
384 | break; |
385 | |
386 | case FF_BLANK: |
387 | arg = *fpc++; |
388 | if (gotsome) { |
389 | if (arg) { /* repeat until fields exhausted? */ |
390 | *t = '\0'; |
391 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
392 | lines += FmLINES(formtarget); |
393 | if (lines == 200) { |
394 | arg = t - linemark; |
395 | if (strnEQ(linemark, linemark - arg, arg)) |
396 | DIE("Runaway format"); |
397 | } |
398 | FmLINES(formtarget) = lines; |
399 | SP = ORIGMARK; |
400 | RETURNOP(cLISTOP->op_first); |
401 | } |
402 | } |
403 | else { |
404 | t = linemark; |
405 | lines--; |
406 | } |
407 | break; |
408 | |
409 | case FF_MORE: |
410 | if (itemsize) { |
411 | arg = fieldsize - itemsize; |
412 | if (arg) { |
413 | fieldsize -= arg; |
414 | while (arg-- > 0) |
415 | *t++ = ' '; |
416 | } |
417 | s = t - 3; |
418 | if (strnEQ(s," ",3)) { |
419 | while (s > SvPVX(formtarget) && isSPACE(s[-1])) |
420 | s--; |
421 | } |
422 | *s++ = '.'; |
423 | *s++ = '.'; |
424 | *s++ = '.'; |
425 | } |
426 | break; |
427 | |
428 | case FF_END: |
429 | *t = '\0'; |
430 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
431 | FmLINES(formtarget) += lines; |
432 | SP = ORIGMARK; |
433 | RETPUSHYES; |
434 | } |
435 | } |
436 | } |
437 | |
438 | PP(pp_grepstart) |
439 | { |
440 | dSP; |
441 | SV *src; |
442 | |
443 | if (stack_base + *markstack_ptr == sp) { |
444 | (void)POPMARK; |
445 | if (GIMME != G_ARRAY) |
446 | XPUSHs(&sv_no); |
447 | RETURNOP(op->op_next->op_next); |
448 | } |
449 | stack_sp = stack_base + *markstack_ptr + 1; |
450 | pp_pushmark(); /* push dst */ |
451 | pp_pushmark(); /* push src */ |
452 | ENTER; /* enter outer scope */ |
453 | |
454 | SAVETMPS; |
455 | SAVESPTR(GvSV(defgv)); |
456 | |
457 | ENTER; /* enter inner scope */ |
458 | SAVESPTR(curpm); |
459 | |
460 | src = stack_base[*markstack_ptr]; |
461 | SvTEMP_off(src); |
462 | GvSV(defgv) = src; |
463 | |
464 | PUTBACK; |
465 | if (op->op_type == OP_MAPSTART) |
466 | pp_pushmark(); /* push top */ |
467 | return ((LOGOP*)op->op_next)->op_other; |
468 | } |
469 | |
470 | PP(pp_mapstart) |
471 | { |
472 | DIE("panic: mapstart"); /* uses grepstart */ |
473 | } |
474 | |
475 | PP(pp_mapwhile) |
476 | { |
477 | dSP; |
478 | I32 diff = (sp - stack_base) - *markstack_ptr; |
479 | I32 count; |
480 | I32 shift; |
481 | SV** src; |
482 | SV** dst; |
483 | |
484 | ++markstack_ptr[-1]; |
485 | if (diff) { |
486 | if (diff > markstack_ptr[-1] - markstack_ptr[-2]) { |
487 | shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]); |
488 | count = (sp - stack_base) - markstack_ptr[-1] + 2; |
489 | |
490 | EXTEND(sp,shift); |
491 | src = sp; |
492 | dst = (sp += shift); |
493 | markstack_ptr[-1] += shift; |
494 | *markstack_ptr += shift; |
495 | while (--count) |
496 | *dst-- = *src--; |
497 | } |
498 | dst = stack_base + (markstack_ptr[-2] += diff) - 1; |
499 | ++diff; |
500 | while (--diff) |
501 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); |
502 | } |
503 | LEAVE; /* exit inner scope */ |
504 | |
505 | /* All done yet? */ |
506 | if (markstack_ptr[-1] > *markstack_ptr) { |
507 | I32 items; |
508 | |
509 | (void)POPMARK; /* pop top */ |
510 | LEAVE; /* exit outer scope */ |
511 | (void)POPMARK; /* pop src */ |
512 | items = --*markstack_ptr - markstack_ptr[-1]; |
513 | (void)POPMARK; /* pop dst */ |
514 | SP = stack_base + POPMARK; /* pop original mark */ |
515 | if (GIMME != G_ARRAY) { |
516 | dTARGET; |
517 | XPUSHi(items); |
518 | RETURN; |
519 | } |
520 | SP += items; |
521 | RETURN; |
522 | } |
523 | else { |
524 | SV *src; |
525 | |
526 | ENTER; /* enter inner scope */ |
527 | SAVESPTR(curpm); |
528 | |
529 | src = stack_base[markstack_ptr[-1]]; |
530 | SvTEMP_off(src); |
531 | GvSV(defgv) = src; |
532 | |
533 | RETURNOP(cLOGOP->op_other); |
534 | } |
535 | } |
536 | |
537 | |
538 | PP(pp_sort) |
539 | { |
540 | dSP; dMARK; dORIGMARK; |
541 | register SV **up; |
542 | SV **myorigmark = ORIGMARK; |
543 | register I32 max; |
544 | HV *stash; |
545 | GV *gv; |
546 | CV *cv; |
547 | I32 gimme = GIMME; |
548 | OP* nextop = op->op_next; |
549 | |
550 | if (gimme != G_ARRAY) { |
551 | SP = MARK; |
552 | RETPUSHUNDEF; |
553 | } |
554 | |
555 | if (op->op_flags & OPf_STACKED) { |
556 | ENTER; |
557 | if (op->op_flags & OPf_SPECIAL) { |
558 | OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */ |
559 | kid = kUNOP->op_first; /* pass rv2gv */ |
560 | kid = kUNOP->op_first; /* pass leave */ |
561 | sortcop = kid->op_next; |
562 | stash = curcop->cop_stash; |
563 | } |
564 | else { |
565 | cv = sv_2cv(*++MARK, &stash, &gv, 0); |
566 | if (!(cv && CvROOT(cv))) { |
567 | if (gv) { |
568 | SV *tmpstr = sv_newmortal(); |
569 | gv_efullname(tmpstr, gv); |
570 | if (cv && CvXSUB(cv)) |
571 | DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr)); |
572 | DIE("Undefined sort subroutine \"%s\" called", |
573 | SvPVX(tmpstr)); |
574 | } |
575 | if (cv) { |
576 | if (CvXSUB(cv)) |
577 | DIE("Xsub called in sort"); |
578 | DIE("Undefined subroutine in sort"); |
579 | } |
580 | DIE("Not a CODE reference in sort"); |
581 | } |
582 | sortcop = CvSTART(cv); |
583 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
584 | CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL]; |
585 | |
586 | SAVESPTR(curpad); |
587 | curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
588 | } |
589 | } |
590 | else { |
591 | sortcop = Nullop; |
592 | stash = curcop->cop_stash; |
593 | } |
594 | |
595 | up = myorigmark + 1; |
596 | while (MARK < SP) { /* This may or may not shift down one here. */ |
597 | /*SUPPRESS 560*/ |
598 | if (*up = *++MARK) { /* Weed out nulls. */ |
599 | if (!SvPOK(*up)) |
600 | (void)sv_2pv(*up, &na); |
601 | else |
602 | SvTEMP_off(*up); |
603 | up++; |
604 | } |
605 | } |
606 | max = --up - myorigmark; |
607 | if (sortcop) { |
608 | if (max > 1) { |
609 | AV *oldstack; |
610 | CONTEXT *cx; |
611 | SV** newsp; |
612 | |
613 | SAVETMPS; |
614 | SAVESPTR(op); |
615 | |
616 | oldstack = stack; |
617 | if (!sortstack) { |
618 | sortstack = newAV(); |
619 | AvREAL_off(sortstack); |
620 | av_extend(sortstack, 32); |
621 | } |
622 | SWITCHSTACK(stack, sortstack); |
623 | if (sortstash != stash) { |
624 | firstgv = gv_fetchpv("a", TRUE, SVt_PV); |
625 | secondgv = gv_fetchpv("b", TRUE, SVt_PV); |
626 | sortstash = stash; |
627 | } |
628 | |
629 | SAVESPTR(GvSV(firstgv)); |
630 | SAVESPTR(GvSV(secondgv)); |
631 | PUSHBLOCK(cx, CXt_LOOP, stack_base); |
632 | sortcxix = cxstack_ix; |
633 | |
634 | qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv); |
635 | |
636 | POPBLOCK(cx,curpm); |
637 | SWITCHSTACK(sortstack, oldstack); |
638 | } |
639 | LEAVE; |
640 | } |
641 | else { |
642 | if (max > 1) { |
643 | MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
644 | qsort((char*)(ORIGMARK+1), max, sizeof(SV*), sortcmp); |
645 | } |
646 | } |
647 | stack_sp = ORIGMARK + max; |
648 | return nextop; |
649 | } |
650 | |
651 | /* Range stuff. */ |
652 | |
653 | PP(pp_range) |
654 | { |
655 | if (GIMME == G_ARRAY) |
656 | return cCONDOP->op_true; |
657 | return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true; |
658 | } |
659 | |
660 | PP(pp_flip) |
661 | { |
662 | dSP; |
663 | |
664 | if (GIMME == G_ARRAY) { |
665 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
666 | } |
667 | else { |
668 | dTOPss; |
669 | SV *targ = PAD_SV(op->op_targ); |
670 | |
671 | if ((op->op_private & OPpFLIP_LINENUM) |
672 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
673 | : SvTRUE(sv) ) { |
674 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
675 | if (op->op_flags & OPf_SPECIAL) { |
676 | sv_setiv(targ, 1); |
677 | RETURN; |
678 | } |
679 | else { |
680 | sv_setiv(targ, 0); |
681 | sp--; |
682 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
683 | } |
684 | } |
685 | sv_setpv(TARG, ""); |
686 | SETs(targ); |
687 | RETURN; |
688 | } |
689 | } |
690 | |
691 | PP(pp_flop) |
692 | { |
693 | dSP; |
694 | |
695 | if (GIMME == G_ARRAY) { |
696 | dPOPPOPssrl; |
697 | register I32 i; |
698 | register SV *sv; |
699 | I32 max; |
700 | |
701 | if (SvNIOK(left) || !SvPOK(left) || |
702 | (looks_like_number(left) && *SvPVX(left) != '0') ) { |
703 | i = SvIV(left); |
704 | max = SvIV(right); |
705 | if (max > i) |
706 | EXTEND(SP, max - i + 1); |
707 | while (i <= max) { |
708 | sv = sv_mortalcopy(&sv_no); |
709 | sv_setiv(sv,i++); |
710 | PUSHs(sv); |
711 | } |
712 | } |
713 | else { |
714 | SV *final = sv_mortalcopy(right); |
715 | STRLEN len; |
716 | char *tmps = SvPV(final, len); |
717 | |
718 | sv = sv_mortalcopy(left); |
719 | while (!SvNIOK(sv) && SvCUR(sv) <= len && |
720 | strNE(SvPVX(sv),tmps) ) { |
721 | XPUSHs(sv); |
722 | sv = sv_2mortal(newSVsv(sv)); |
723 | sv_inc(sv); |
724 | } |
725 | if (strEQ(SvPVX(sv),tmps)) |
726 | XPUSHs(sv); |
727 | } |
728 | } |
729 | else { |
730 | dTOPss; |
731 | SV *targ = PAD_SV(cUNOP->op_first->op_targ); |
732 | sv_inc(targ); |
733 | if ((op->op_private & OPpFLIP_LINENUM) |
734 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
735 | : SvTRUE(sv) ) { |
736 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
737 | sv_catpv(targ, "E0"); |
738 | } |
739 | SETs(targ); |
740 | } |
741 | |
742 | RETURN; |
743 | } |
744 | |
745 | /* Control. */ |
746 | |
747 | static I32 |
748 | dopoptolabel(label) |
749 | char *label; |
750 | { |
751 | register I32 i; |
752 | register CONTEXT *cx; |
753 | |
754 | for (i = cxstack_ix; i >= 0; i--) { |
755 | cx = &cxstack[i]; |
756 | switch (cx->cx_type) { |
757 | case CXt_SUBST: |
758 | if (dowarn) |
759 | warn("Exiting substitution via %s", op_name[op->op_type]); |
760 | break; |
761 | case CXt_SUB: |
762 | if (dowarn) |
763 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
764 | break; |
765 | case CXt_EVAL: |
766 | if (dowarn) |
767 | warn("Exiting eval via %s", op_name[op->op_type]); |
768 | break; |
769 | case CXt_LOOP: |
770 | if (!cx->blk_loop.label || |
771 | strNE(label, cx->blk_loop.label) ) { |
772 | DEBUG_l(deb("(Skipping label #%d %s)\n", |
773 | i, cx->blk_loop.label)); |
774 | continue; |
775 | } |
776 | DEBUG_l( deb("(Found label #%d %s)\n", i, label)); |
777 | return i; |
778 | } |
779 | } |
780 | return i; |
781 | } |
782 | |
e50aee73 |
783 | I32 |
784 | dowantarray() |
785 | { |
786 | I32 cxix; |
787 | |
788 | cxix = dopoptosub(cxstack_ix); |
789 | if (cxix < 0) |
790 | return G_SCALAR; |
791 | |
792 | if (cxstack[cxix].blk_gimme == G_ARRAY) |
793 | return G_ARRAY; |
794 | else |
795 | return G_SCALAR; |
796 | } |
797 | |
a0d0e21e |
798 | static I32 |
799 | dopoptosub(startingblock) |
800 | I32 startingblock; |
801 | { |
802 | I32 i; |
803 | register CONTEXT *cx; |
804 | for (i = startingblock; i >= 0; i--) { |
805 | cx = &cxstack[i]; |
806 | switch (cx->cx_type) { |
807 | default: |
808 | continue; |
809 | case CXt_EVAL: |
810 | case CXt_SUB: |
811 | DEBUG_l( deb("(Found sub #%d)\n", i)); |
812 | return i; |
813 | } |
814 | } |
815 | return i; |
816 | } |
817 | |
818 | static I32 |
819 | dopoptoeval(startingblock) |
820 | I32 startingblock; |
821 | { |
822 | I32 i; |
823 | register CONTEXT *cx; |
824 | for (i = startingblock; i >= 0; i--) { |
825 | cx = &cxstack[i]; |
826 | switch (cx->cx_type) { |
827 | default: |
828 | continue; |
829 | case CXt_EVAL: |
830 | DEBUG_l( deb("(Found eval #%d)\n", i)); |
831 | return i; |
832 | } |
833 | } |
834 | return i; |
835 | } |
836 | |
837 | static I32 |
838 | dopoptoloop(startingblock) |
839 | I32 startingblock; |
840 | { |
841 | I32 i; |
842 | register CONTEXT *cx; |
843 | for (i = startingblock; i >= 0; i--) { |
844 | cx = &cxstack[i]; |
845 | switch (cx->cx_type) { |
846 | case CXt_SUBST: |
847 | if (dowarn) |
848 | warn("Exiting substitition via %s", op_name[op->op_type]); |
849 | break; |
850 | case CXt_SUB: |
851 | if (dowarn) |
852 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
853 | break; |
854 | case CXt_EVAL: |
855 | if (dowarn) |
856 | warn("Exiting eval via %s", op_name[op->op_type]); |
857 | break; |
858 | case CXt_LOOP: |
859 | DEBUG_l( deb("(Found loop #%d)\n", i)); |
860 | return i; |
861 | } |
862 | } |
863 | return i; |
864 | } |
865 | |
866 | void |
867 | dounwind(cxix) |
868 | I32 cxix; |
869 | { |
870 | register CONTEXT *cx; |
871 | SV **newsp; |
872 | I32 optype; |
873 | |
874 | while (cxstack_ix > cxix) { |
875 | cx = &cxstack[cxstack_ix--]; |
876 | DEBUG_l(fprintf(stderr, "Unwinding block %ld, type %s\n", (long) cxstack_ix+1, |
877 | block_type[cx->cx_type])); |
878 | /* Note: we don't need to restore the base context info till the end. */ |
879 | switch (cx->cx_type) { |
880 | case CXt_SUB: |
881 | POPSUB(cx); |
882 | break; |
883 | case CXt_EVAL: |
884 | POPEVAL(cx); |
885 | break; |
886 | case CXt_LOOP: |
887 | POPLOOP(cx); |
888 | break; |
889 | case CXt_SUBST: |
890 | break; |
891 | } |
892 | } |
893 | } |
894 | |
ecfc5424 |
895 | #ifdef I_STDARG |
a0d0e21e |
896 | OP * |
897 | die(char* pat, ...) |
898 | #else |
899 | /*VARARGS0*/ |
900 | OP * |
901 | die(pat, va_alist) |
902 | char *pat; |
903 | va_dcl |
904 | #endif |
905 | { |
906 | va_list args; |
907 | char *message; |
908 | int oldrunlevel = runlevel; |
909 | int was_in_eval = in_eval; |
748a9306 |
910 | HV *stash; |
911 | GV *gv; |
912 | CV *cv; |
a0d0e21e |
913 | |
914 | #ifdef I_STDARG |
915 | va_start(args, pat); |
916 | #else |
917 | va_start(args); |
918 | #endif |
919 | message = mess(pat, &args); |
920 | va_end(args); |
748a9306 |
921 | if (diehook && (cv = sv_2cv(diehook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
922 | dSP; |
923 | |
924 | PUSHMARK(sp); |
925 | EXTEND(sp, 1); |
926 | PUSHs(sv_2mortal(newSVpv(message,0))); |
927 | PUTBACK; |
928 | perl_call_sv((SV*)cv, G_DISCARD); |
929 | } |
a0d0e21e |
930 | restartop = die_where(message); |
931 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
932 | longjmp(top_env, 3); |
933 | return restartop; |
934 | } |
935 | |
936 | OP * |
937 | die_where(message) |
938 | char *message; |
939 | { |
940 | if (in_eval) { |
941 | I32 cxix; |
942 | register CONTEXT *cx; |
943 | I32 gimme; |
944 | SV **newsp; |
748a9306 |
945 | SV *errsv; |
946 | |
947 | errsv = GvSV(gv_fetchpv("@",TRUE, SVt_PV)); |
948 | /* As destructors may produce errors we set $@ at the last moment */ |
949 | sv_setpv(errsv, ""); /* clear $@ before destroying */ |
a0d0e21e |
950 | |
a0d0e21e |
951 | cxix = dopoptoeval(cxstack_ix); |
952 | if (cxix >= 0) { |
953 | I32 optype; |
954 | |
955 | if (cxix < cxstack_ix) |
956 | dounwind(cxix); |
957 | |
958 | POPBLOCK(cx,curpm); |
959 | if (cx->cx_type != CXt_EVAL) { |
960 | fprintf(stderr, "panic: die %s", message); |
961 | my_exit(1); |
962 | } |
963 | POPEVAL(cx); |
964 | |
965 | if (gimme == G_SCALAR) |
966 | *++newsp = &sv_undef; |
967 | stack_sp = newsp; |
968 | |
969 | LEAVE; |
748a9306 |
970 | |
971 | sv_insert(errsv, 0, 0, message, strlen(message)); |
a0d0e21e |
972 | if (optype == OP_REQUIRE) |
973 | DIE("%s", SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), na)); |
974 | return pop_return(); |
975 | } |
976 | } |
977 | fputs(message, stderr); |
978 | (void)fflush(stderr); |
979 | if (e_fp) |
980 | (void)UNLINK(e_tmpname); |
748a9306 |
981 | statusvalue = SHIFTSTATUS(statusvalue); |
982 | #ifdef VMS |
983 | my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT); |
984 | #else |
a0d0e21e |
985 | my_exit((I32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
748a9306 |
986 | #endif |
a0d0e21e |
987 | return 0; |
988 | } |
989 | |
990 | PP(pp_xor) |
991 | { |
992 | dSP; dPOPTOPssrl; |
993 | if (SvTRUE(left) != SvTRUE(right)) |
994 | RETSETYES; |
995 | else |
996 | RETSETNO; |
997 | } |
998 | |
999 | PP(pp_andassign) |
1000 | { |
1001 | dSP; |
1002 | if (!SvTRUE(TOPs)) |
1003 | RETURN; |
1004 | else |
1005 | RETURNOP(cLOGOP->op_other); |
1006 | } |
1007 | |
1008 | PP(pp_orassign) |
1009 | { |
1010 | dSP; |
1011 | if (SvTRUE(TOPs)) |
1012 | RETURN; |
1013 | else |
1014 | RETURNOP(cLOGOP->op_other); |
1015 | } |
1016 | |
1017 | #ifdef DEPRECATED |
1018 | PP(pp_entersubr) |
1019 | { |
1020 | dSP; |
1021 | SV** mark = (stack_base + *markstack_ptr + 1); |
1022 | SV* cv = *mark; |
1023 | while (mark < sp) { /* emulate old interface */ |
1024 | *mark = mark[1]; |
1025 | mark++; |
1026 | } |
1027 | *sp = cv; |
1028 | return pp_entersub(); |
1029 | } |
1030 | #endif |
1031 | |
1032 | PP(pp_caller) |
1033 | { |
1034 | dSP; |
1035 | register I32 cxix = dopoptosub(cxstack_ix); |
1036 | register CONTEXT *cx; |
1037 | I32 dbcxix; |
1038 | SV *sv; |
1039 | I32 count = 0; |
1040 | |
1041 | if (MAXARG) |
1042 | count = POPi; |
1043 | EXTEND(SP, 6); |
1044 | for (;;) { |
1045 | if (cxix < 0) { |
1046 | if (GIMME != G_ARRAY) |
1047 | RETPUSHUNDEF; |
1048 | RETURN; |
1049 | } |
1050 | if (DBsub && cxix >= 0 && |
1051 | cxstack[cxix].blk_sub.cv == GvCV(DBsub)) |
1052 | count++; |
1053 | if (!count--) |
1054 | break; |
1055 | cxix = dopoptosub(cxix - 1); |
1056 | } |
1057 | cx = &cxstack[cxix]; |
1058 | if (GIMME != G_ARRAY) { |
1059 | dTARGET; |
1060 | |
1061 | sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash)); |
1062 | PUSHs(TARG); |
1063 | RETURN; |
1064 | } |
1065 | dbcxix = dopoptosub(cxix - 1); |
1066 | if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub)) |
1067 | cx = &cxstack[dbcxix]; |
1068 | |
1069 | PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0))); |
1070 | PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0))); |
1071 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line))); |
1072 | if (!MAXARG) |
1073 | RETURN; |
1074 | if (cx->cx_type == CXt_SUB) { |
1075 | sv = NEWSV(49, 0); |
1076 | gv_efullname(sv, CvGV(cxstack[cxix].blk_sub.cv)); |
1077 | PUSHs(sv_2mortal(sv)); |
1078 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
1079 | } |
1080 | else { |
1081 | PUSHs(sv_2mortal(newSVpv("(eval)",0))); |
1082 | PUSHs(sv_2mortal(newSViv(0))); |
1083 | } |
1084 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_gimme))); |
748a9306 |
1085 | if (cx->cx_type == CXt_EVAL && cx->blk_eval.old_op_type == OP_ENTEREVAL) |
1086 | PUSHs(cx->blk_eval.cur_text); |
1087 | |
a0d0e21e |
1088 | if (cx->blk_sub.hasargs && curcop->cop_stash == debstash) { |
1089 | AV *ary = cx->blk_sub.argarray; |
1090 | int off = AvARRAY(ary) - AvALLOC(ary); |
1091 | |
1092 | if (!dbargs) { |
1093 | GV* tmpgv; |
1094 | dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE, |
1095 | SVt_PVAV))); |
1096 | SvMULTI_on(tmpgv); |
1097 | AvREAL_off(dbargs); /* XXX Should be REIFY */ |
1098 | } |
1099 | |
1100 | if (AvMAX(dbargs) < AvFILL(ary) + off) |
1101 | av_extend(dbargs, AvFILL(ary) + off); |
1102 | Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*); |
1103 | AvFILL(dbargs) = AvFILL(ary) + off; |
1104 | } |
1105 | RETURN; |
1106 | } |
1107 | |
1108 | static int |
1109 | sortcv(a, b) |
1110 | const void *a; |
1111 | const void *b; |
1112 | { |
1113 | SV **str1 = (SV **) a; |
1114 | SV **str2 = (SV **) b; |
748a9306 |
1115 | I32 oldsaveix = savestack_ix; |
a0d0e21e |
1116 | I32 oldscopeix = scopestack_ix; |
1117 | I32 result; |
1118 | GvSV(firstgv) = *str1; |
1119 | GvSV(secondgv) = *str2; |
1120 | stack_sp = stack_base; |
1121 | op = sortcop; |
1122 | run(); |
1123 | if (stack_sp != stack_base + 1) |
1124 | croak("Sort subroutine didn't return single value"); |
748a9306 |
1125 | if (!SvNIOKp(*stack_sp)) |
a0d0e21e |
1126 | croak("Sort subroutine didn't return a numeric value"); |
1127 | result = SvIV(*stack_sp); |
1128 | while (scopestack_ix > oldscopeix) { |
1129 | LEAVE; |
1130 | } |
748a9306 |
1131 | leave_scope(oldsaveix); |
a0d0e21e |
1132 | return result; |
1133 | } |
1134 | |
1135 | static int |
1136 | sortcmp(a, b) |
1137 | const void *a; |
1138 | const void *b; |
1139 | { |
1140 | register SV *str1 = *(SV **) a; |
1141 | register SV *str2 = *(SV **) b; |
1142 | I32 retval; |
1143 | |
1144 | if (SvCUR(str1) < SvCUR(str2)) { |
1145 | /*SUPPRESS 560*/ |
1146 | if (retval = memcmp(SvPVX(str1), SvPVX(str2), SvCUR(str1))) |
1147 | return retval; |
1148 | else |
1149 | return -1; |
1150 | } |
1151 | /*SUPPRESS 560*/ |
1152 | else if (retval = memcmp(SvPVX(str1), SvPVX(str2), SvCUR(str2))) |
1153 | return retval; |
1154 | else if (SvCUR(str1) == SvCUR(str2)) |
1155 | return 0; |
1156 | else |
1157 | return 1; |
1158 | } |
1159 | |
1160 | PP(pp_reset) |
1161 | { |
1162 | dSP; |
1163 | char *tmps; |
1164 | |
1165 | if (MAXARG < 1) |
1166 | tmps = ""; |
1167 | else |
1168 | tmps = POPp; |
1169 | sv_reset(tmps, curcop->cop_stash); |
1170 | PUSHs(&sv_yes); |
1171 | RETURN; |
1172 | } |
1173 | |
1174 | PP(pp_lineseq) |
1175 | { |
1176 | return NORMAL; |
1177 | } |
1178 | |
1179 | PP(pp_dbstate) |
1180 | { |
1181 | curcop = (COP*)op; |
1182 | TAINT_NOT; /* Each statement is presumed innocent */ |
1183 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
1184 | FREETMPS; |
1185 | |
1186 | if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace)) |
1187 | { |
1188 | SV **sp; |
1189 | register CV *cv; |
1190 | register CONTEXT *cx; |
748a9306 |
1191 | I32 gimme = G_ARRAY; |
a0d0e21e |
1192 | I32 hasargs; |
1193 | GV *gv; |
1194 | |
1195 | ENTER; |
1196 | SAVETMPS; |
1197 | |
a0d0e21e |
1198 | gv = DBgv; |
1199 | cv = GvCV(gv); |
a0d0e21e |
1200 | if (!cv) |
1201 | DIE("No DB::DB routine defined"); |
1202 | |
8e07c86e |
1203 | if (CvDEPTH(cv) >= 1 && !(debug & (1<<30))) /* don't do recursive DB::DB call */ |
a0d0e21e |
1204 | return NORMAL; |
748a9306 |
1205 | |
1206 | SAVEI32(debug); |
1207 | SAVESPTR(stack_sp); |
1208 | debug = 0; |
1209 | hasargs = 0; |
1210 | sp = stack_sp; |
1211 | |
a0d0e21e |
1212 | push_return(op->op_next); |
748a9306 |
1213 | PUSHBLOCK(cx, CXt_SUB, sp); |
a0d0e21e |
1214 | PUSHSUB(cx); |
1215 | CvDEPTH(cv)++; |
1216 | (void)SvREFCNT_inc(cv); |
1217 | SAVESPTR(curpad); |
1218 | curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE)); |
1219 | RETURNOP(CvSTART(cv)); |
1220 | } |
1221 | else |
1222 | return NORMAL; |
1223 | } |
1224 | |
1225 | PP(pp_scope) |
1226 | { |
1227 | return NORMAL; |
1228 | } |
1229 | |
1230 | PP(pp_enteriter) |
1231 | { |
1232 | dSP; dMARK; |
1233 | register CONTEXT *cx; |
1234 | I32 gimme = GIMME; |
1235 | SV **svp; |
1236 | |
1237 | if (op->op_targ) |
1238 | svp = &curpad[op->op_targ]; /* "my" variable */ |
1239 | else |
1240 | svp = &GvSV((GV*)POPs); /* symbol table variable */ |
1241 | |
1242 | ENTER; |
1243 | SAVETMPS; |
1244 | ENTER; |
1245 | |
1246 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1247 | PUSHLOOP(cx, svp, MARK); |
1248 | cx->blk_loop.iterary = stack; |
1249 | cx->blk_loop.iterix = MARK - stack_base; |
1250 | |
1251 | RETURN; |
1252 | } |
1253 | |
1254 | PP(pp_enterloop) |
1255 | { |
1256 | dSP; |
1257 | register CONTEXT *cx; |
1258 | I32 gimme = GIMME; |
1259 | |
1260 | ENTER; |
1261 | SAVETMPS; |
1262 | ENTER; |
1263 | |
1264 | PUSHBLOCK(cx, CXt_LOOP, SP); |
1265 | PUSHLOOP(cx, 0, SP); |
1266 | |
1267 | RETURN; |
1268 | } |
1269 | |
1270 | PP(pp_leaveloop) |
1271 | { |
1272 | dSP; |
1273 | register CONTEXT *cx; |
1274 | I32 gimme; |
1275 | SV **newsp; |
1276 | PMOP *newpm; |
1277 | SV **mark; |
1278 | |
1279 | POPBLOCK(cx,newpm); |
1280 | mark = newsp; |
1281 | POPLOOP(cx); |
1282 | if (gimme == G_SCALAR) { |
1283 | if (op->op_private & OPpLEAVE_VOID) |
1284 | ; |
1285 | else { |
1286 | if (mark < SP) |
1287 | *++newsp = sv_mortalcopy(*SP); |
1288 | else |
1289 | *++newsp = &sv_undef; |
1290 | } |
1291 | } |
1292 | else { |
1293 | while (mark < SP) |
1294 | *++newsp = sv_mortalcopy(*++mark); |
1295 | } |
1296 | curpm = newpm; /* Don't pop $1 et al till now */ |
1297 | sp = newsp; |
1298 | LEAVE; |
1299 | LEAVE; |
1300 | |
1301 | RETURN; |
1302 | } |
1303 | |
1304 | PP(pp_return) |
1305 | { |
1306 | dSP; dMARK; |
1307 | I32 cxix; |
1308 | register CONTEXT *cx; |
1309 | I32 gimme; |
1310 | SV **newsp; |
1311 | PMOP *newpm; |
1312 | I32 optype = 0; |
1313 | |
1314 | if (stack == sortstack) { |
1315 | if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) < sortcxix) { |
16d20bd9 |
1316 | if (cxstack_ix > sortcxix) |
1317 | dounwind(sortcxix); |
a0d0e21e |
1318 | AvARRAY(stack)[1] = *SP; |
1319 | stack_sp = stack_base + 1; |
1320 | return 0; |
1321 | } |
1322 | } |
1323 | |
1324 | cxix = dopoptosub(cxstack_ix); |
1325 | if (cxix < 0) |
1326 | DIE("Can't return outside a subroutine"); |
1327 | if (cxix < cxstack_ix) |
1328 | dounwind(cxix); |
1329 | |
1330 | POPBLOCK(cx,newpm); |
1331 | switch (cx->cx_type) { |
1332 | case CXt_SUB: |
1333 | POPSUB(cx); |
1334 | break; |
1335 | case CXt_EVAL: |
1336 | POPEVAL(cx); |
748a9306 |
1337 | if (optype == OP_REQUIRE && |
1338 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) |
1339 | { |
1340 | char *name = cx->blk_eval.old_name; |
1341 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
1342 | DIE("%s did not return a true value", name); |
1343 | } |
a0d0e21e |
1344 | break; |
1345 | default: |
1346 | DIE("panic: return"); |
1347 | break; |
1348 | } |
1349 | |
1350 | if (gimme == G_SCALAR) { |
1351 | if (MARK < SP) |
1352 | *++newsp = sv_mortalcopy(*SP); |
1353 | else |
1354 | *++newsp = &sv_undef; |
a0d0e21e |
1355 | } |
1356 | else { |
a0d0e21e |
1357 | while (MARK < SP) |
1358 | *++newsp = sv_mortalcopy(*++MARK); |
1359 | } |
1360 | curpm = newpm; /* Don't pop $1 et al till now */ |
1361 | stack_sp = newsp; |
1362 | |
1363 | LEAVE; |
1364 | return pop_return(); |
1365 | } |
1366 | |
1367 | PP(pp_last) |
1368 | { |
1369 | dSP; |
1370 | I32 cxix; |
1371 | register CONTEXT *cx; |
1372 | I32 gimme; |
1373 | I32 optype; |
1374 | OP *nextop; |
1375 | SV **newsp; |
1376 | PMOP *newpm; |
1377 | SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
1378 | |
1379 | if (op->op_flags & OPf_SPECIAL) { |
1380 | cxix = dopoptoloop(cxstack_ix); |
1381 | if (cxix < 0) |
1382 | DIE("Can't \"last\" outside a block"); |
1383 | } |
1384 | else { |
1385 | cxix = dopoptolabel(cPVOP->op_pv); |
1386 | if (cxix < 0) |
1387 | DIE("Label not found for \"last %s\"", cPVOP->op_pv); |
1388 | } |
1389 | if (cxix < cxstack_ix) |
1390 | dounwind(cxix); |
1391 | |
1392 | POPBLOCK(cx,newpm); |
1393 | switch (cx->cx_type) { |
1394 | case CXt_LOOP: |
1395 | POPLOOP(cx); |
1396 | nextop = cx->blk_loop.last_op->op_next; |
1397 | LEAVE; |
1398 | break; |
1399 | case CXt_EVAL: |
1400 | POPEVAL(cx); |
1401 | nextop = pop_return(); |
1402 | break; |
1403 | case CXt_SUB: |
1404 | POPSUB(cx); |
1405 | nextop = pop_return(); |
1406 | break; |
1407 | default: |
1408 | DIE("panic: last"); |
1409 | break; |
1410 | } |
1411 | |
1412 | if (gimme == G_SCALAR) { |
1413 | if (mark < SP) |
1414 | *++newsp = sv_mortalcopy(*SP); |
1415 | else |
1416 | *++newsp = &sv_undef; |
1417 | } |
1418 | else { |
1419 | while (mark < SP) |
1420 | *++newsp = sv_mortalcopy(*++mark); |
1421 | } |
1422 | curpm = newpm; /* Don't pop $1 et al till now */ |
1423 | sp = newsp; |
1424 | |
1425 | LEAVE; |
1426 | RETURNOP(nextop); |
1427 | } |
1428 | |
1429 | PP(pp_next) |
1430 | { |
1431 | I32 cxix; |
1432 | register CONTEXT *cx; |
1433 | I32 oldsave; |
1434 | |
1435 | if (op->op_flags & OPf_SPECIAL) { |
1436 | cxix = dopoptoloop(cxstack_ix); |
1437 | if (cxix < 0) |
1438 | DIE("Can't \"next\" outside a block"); |
1439 | } |
1440 | else { |
1441 | cxix = dopoptolabel(cPVOP->op_pv); |
1442 | if (cxix < 0) |
1443 | DIE("Label not found for \"next %s\"", cPVOP->op_pv); |
1444 | } |
1445 | if (cxix < cxstack_ix) |
1446 | dounwind(cxix); |
1447 | |
1448 | TOPBLOCK(cx); |
1449 | oldsave = scopestack[scopestack_ix - 1]; |
1450 | LEAVE_SCOPE(oldsave); |
1451 | return cx->blk_loop.next_op; |
1452 | } |
1453 | |
1454 | PP(pp_redo) |
1455 | { |
1456 | I32 cxix; |
1457 | register CONTEXT *cx; |
1458 | I32 oldsave; |
1459 | |
1460 | if (op->op_flags & OPf_SPECIAL) { |
1461 | cxix = dopoptoloop(cxstack_ix); |
1462 | if (cxix < 0) |
1463 | DIE("Can't \"redo\" outside a block"); |
1464 | } |
1465 | else { |
1466 | cxix = dopoptolabel(cPVOP->op_pv); |
1467 | if (cxix < 0) |
1468 | DIE("Label not found for \"redo %s\"", cPVOP->op_pv); |
1469 | } |
1470 | if (cxix < cxstack_ix) |
1471 | dounwind(cxix); |
1472 | |
1473 | TOPBLOCK(cx); |
1474 | oldsave = scopestack[scopestack_ix - 1]; |
1475 | LEAVE_SCOPE(oldsave); |
1476 | return cx->blk_loop.redo_op; |
1477 | } |
1478 | |
1479 | static OP* lastgotoprobe; |
1480 | |
1481 | static OP * |
1482 | dofindlabel(op,label,opstack) |
1483 | OP *op; |
1484 | char *label; |
1485 | OP **opstack; |
1486 | { |
1487 | OP *kid; |
1488 | OP **ops = opstack; |
1489 | |
1490 | if (op->op_type == OP_LEAVE || |
1491 | op->op_type == OP_SCOPE || |
1492 | op->op_type == OP_LEAVELOOP || |
1493 | op->op_type == OP_LEAVETRY) |
1494 | *ops++ = cUNOP->op_first; |
1495 | *ops = 0; |
1496 | if (op->op_flags & OPf_KIDS) { |
1497 | /* First try all the kids at this level, since that's likeliest. */ |
1498 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1499 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
1500 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) |
1501 | return kid; |
1502 | } |
1503 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
1504 | if (kid == lastgotoprobe) |
1505 | continue; |
1506 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
1507 | if (ops > opstack && |
1508 | (ops[-1]->op_type == OP_NEXTSTATE || |
1509 | ops[-1]->op_type == OP_DBSTATE)) |
1510 | *ops = kid; |
1511 | else |
1512 | *ops++ = kid; |
1513 | } |
1514 | if (op = dofindlabel(kid,label,ops)) |
1515 | return op; |
1516 | } |
1517 | } |
1518 | *ops = 0; |
1519 | return 0; |
1520 | } |
1521 | |
1522 | PP(pp_dump) |
1523 | { |
1524 | return pp_goto(ARGS); |
1525 | /*NOTREACHED*/ |
1526 | } |
1527 | |
1528 | PP(pp_goto) |
1529 | { |
1530 | dSP; |
1531 | OP *retop = 0; |
1532 | I32 ix; |
1533 | register CONTEXT *cx; |
1534 | OP *enterops[64]; |
1535 | char *label; |
1536 | int do_dump = (op->op_type == OP_DUMP); |
1537 | |
1538 | label = 0; |
1539 | if (op->op_flags & OPf_STACKED) { |
1540 | SV *sv = POPs; |
1541 | |
1542 | /* This egregious kludge implements goto &subroutine */ |
1543 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { |
1544 | I32 cxix; |
1545 | register CONTEXT *cx; |
1546 | CV* cv = (CV*)SvRV(sv); |
1547 | SV** mark; |
1548 | I32 items = 0; |
1549 | I32 oldsave; |
1550 | |
4aa0a1f7 |
1551 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1552 | if (CvGV(cv)) { |
1553 | SV *tmpstr = sv_newmortal(); |
1554 | gv_efullname(tmpstr, CvGV(cv)); |
1555 | DIE("Goto undefined subroutine &%s",SvPVX(tmpstr)); |
1556 | } |
1557 | DIE("Goto undefined subroutine"); |
1558 | } |
1559 | |
a0d0e21e |
1560 | /* First do some returnish stuff. */ |
1561 | cxix = dopoptosub(cxstack_ix); |
1562 | if (cxix < 0) |
1563 | DIE("Can't goto subroutine outside a subroutine"); |
1564 | if (cxix < cxstack_ix) |
1565 | dounwind(cxix); |
1566 | TOPBLOCK(cx); |
1567 | mark = stack_sp; |
1568 | if (cx->blk_sub.hasargs) { /* put @_ back onto stack */ |
1569 | AV* av = cx->blk_sub.argarray; |
1570 | |
1571 | items = AvFILL(av) + 1; |
1572 | Copy(AvARRAY(av), ++stack_sp, items, SV*); |
1573 | stack_sp += items; |
1574 | GvAV(defgv) = cx->blk_sub.savearray; |
1575 | av_clear(av); |
1576 | AvREAL_off(av); |
1577 | } |
1578 | if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
1579 | SvREFCNT_dec(cx->blk_sub.cv); |
1580 | oldsave = scopestack[scopestack_ix - 1]; |
1581 | LEAVE_SCOPE(oldsave); |
1582 | |
1583 | /* Now do some callish stuff. */ |
1584 | SAVETMPS; |
1585 | if (CvXSUB(cv)) { |
1586 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1587 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1588 | while (sp > mark) { |
1589 | sp[1] = sp[0]; |
1590 | sp--; |
1591 | } |
ecfc5424 |
1592 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1593 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1594 | mark - stack_base + 1, |
1595 | items); |
a0d0e21e |
1596 | sp = stack_base + items; |
1597 | } |
1598 | else { |
1599 | (void)(*CvXSUB(cv))(cv); |
1600 | } |
1601 | LEAVE; |
1602 | return pop_return(); |
1603 | } |
1604 | else { |
1605 | AV* padlist = CvPADLIST(cv); |
1606 | SV** svp = AvARRAY(padlist); |
1607 | cx->blk_sub.cv = cv; |
1608 | cx->blk_sub.olddepth = CvDEPTH(cv); |
1609 | CvDEPTH(cv)++; |
1610 | if (CvDEPTH(cv) < 2) |
1611 | (void)SvREFCNT_inc(cv); |
1612 | else { /* save temporaries on recursion? */ |
1613 | if (CvDEPTH(cv) == 100 && dowarn) |
1614 | warn("Deep recursion on subroutine \"%s\"", |
1615 | GvENAME(CvGV(cv))); |
1616 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1617 | AV *newpad = newAV(); |
4aa0a1f7 |
1618 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1619 | I32 ix = AvFILL((AV*)svp[1]); |
1620 | svp = AvARRAY(svp[0]); |
748a9306 |
1621 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1622 | if (svp[ix] != &sv_undef) { |
748a9306 |
1623 | char *name = SvPVX(svp[ix]); |
1624 | if (SvFLAGS(svp[ix]) & SVf_FAKE) { |
1625 | /* outer lexical? */ |
1626 | av_store(newpad, ix, |
4aa0a1f7 |
1627 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 |
1628 | } |
1629 | else { /* our own lexical */ |
1630 | if (*name == '@') |
1631 | av_store(newpad, ix, sv = (SV*)newAV()); |
1632 | else if (*name == '%') |
1633 | av_store(newpad, ix, sv = (SV*)newHV()); |
1634 | else |
1635 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1636 | SvPADMY_on(sv); |
1637 | } |
a0d0e21e |
1638 | } |
1639 | else { |
748a9306 |
1640 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1641 | SvPADTMP_on(sv); |
1642 | } |
1643 | } |
1644 | if (cx->blk_sub.hasargs) { |
1645 | AV* av = newAV(); |
1646 | av_extend(av, 0); |
1647 | av_store(newpad, 0, (SV*)av); |
1648 | AvFLAGS(av) = AVf_REIFY; |
1649 | } |
1650 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1651 | AvFILL(padlist) = CvDEPTH(cv); |
1652 | svp = AvARRAY(padlist); |
1653 | } |
1654 | } |
1655 | SAVESPTR(curpad); |
1656 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1657 | if (cx->blk_sub.hasargs) { |
1658 | AV* av = (AV*)curpad[0]; |
1659 | SV** ary; |
1660 | |
1661 | cx->blk_sub.savearray = GvAV(defgv); |
1662 | cx->blk_sub.argarray = av; |
1663 | GvAV(defgv) = cx->blk_sub.argarray; |
1664 | ++mark; |
1665 | |
1666 | if (items >= AvMAX(av) + 1) { |
1667 | ary = AvALLOC(av); |
1668 | if (AvARRAY(av) != ary) { |
1669 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1670 | SvPVX(av) = (char*)ary; |
1671 | } |
1672 | if (items >= AvMAX(av) + 1) { |
1673 | AvMAX(av) = items - 1; |
1674 | Renew(ary,items+1,SV*); |
1675 | AvALLOC(av) = ary; |
1676 | SvPVX(av) = (char*)ary; |
1677 | } |
1678 | } |
1679 | Copy(mark,AvARRAY(av),items,SV*); |
1680 | AvFILL(av) = items - 1; |
1681 | |
1682 | while (items--) { |
1683 | if (*mark) |
1684 | SvTEMP_off(*mark); |
1685 | mark++; |
1686 | } |
1687 | } |
1688 | RETURNOP(CvSTART(cv)); |
1689 | } |
1690 | } |
1691 | else |
1692 | label = SvPV(sv,na); |
1693 | } |
1694 | else if (op->op_flags & OPf_SPECIAL) { |
1695 | if (! do_dump) |
1696 | DIE("goto must have label"); |
1697 | } |
1698 | else |
1699 | label = cPVOP->op_pv; |
1700 | |
1701 | if (label && *label) { |
1702 | OP *gotoprobe = 0; |
1703 | |
1704 | /* find label */ |
1705 | |
1706 | lastgotoprobe = 0; |
1707 | *enterops = 0; |
1708 | for (ix = cxstack_ix; ix >= 0; ix--) { |
1709 | cx = &cxstack[ix]; |
1710 | switch (cx->cx_type) { |
1711 | case CXt_SUB: |
1712 | gotoprobe = CvROOT(cx->blk_sub.cv); |
1713 | break; |
1714 | case CXt_EVAL: |
1715 | gotoprobe = eval_root; /* XXX not good for nested eval */ |
1716 | break; |
1717 | case CXt_LOOP: |
1718 | gotoprobe = cx->blk_oldcop->op_sibling; |
1719 | break; |
1720 | case CXt_SUBST: |
1721 | continue; |
1722 | case CXt_BLOCK: |
1723 | if (ix) |
1724 | gotoprobe = cx->blk_oldcop->op_sibling; |
1725 | else |
1726 | gotoprobe = main_root; |
1727 | break; |
1728 | default: |
1729 | if (ix) |
1730 | DIE("panic: goto"); |
1731 | else |
1732 | gotoprobe = main_root; |
1733 | break; |
1734 | } |
1735 | retop = dofindlabel(gotoprobe, label, enterops); |
1736 | if (retop) |
1737 | break; |
1738 | lastgotoprobe = gotoprobe; |
1739 | } |
1740 | if (!retop) |
1741 | DIE("Can't find label %s", label); |
1742 | |
1743 | /* pop unwanted frames */ |
1744 | |
1745 | if (ix < cxstack_ix) { |
1746 | I32 oldsave; |
1747 | |
1748 | if (ix < 0) |
1749 | ix = 0; |
1750 | dounwind(ix); |
1751 | TOPBLOCK(cx); |
1752 | oldsave = scopestack[scopestack_ix]; |
1753 | LEAVE_SCOPE(oldsave); |
1754 | } |
1755 | |
1756 | /* push wanted frames */ |
1757 | |
748a9306 |
1758 | if (*enterops && enterops[1]) { |
a0d0e21e |
1759 | OP *oldop = op; |
748a9306 |
1760 | for (ix = 1; enterops[ix]; ix++) { |
a0d0e21e |
1761 | op = enterops[ix]; |
1762 | (*op->op_ppaddr)(); |
1763 | } |
1764 | op = oldop; |
1765 | } |
1766 | } |
1767 | |
1768 | if (do_dump) { |
1769 | restartop = retop; |
1770 | do_undump = TRUE; |
1771 | |
1772 | my_unexec(); |
1773 | |
1774 | restartop = 0; /* hmm, must be GNU unexec().. */ |
1775 | do_undump = FALSE; |
1776 | } |
1777 | |
748a9306 |
1778 | if (stack == signalstack) { |
1779 | restartop = retop; |
1780 | longjmp(top_env, 3); |
1781 | } |
1782 | |
a0d0e21e |
1783 | RETURNOP(retop); |
1784 | } |
1785 | |
1786 | PP(pp_exit) |
1787 | { |
1788 | dSP; |
1789 | I32 anum; |
1790 | |
1791 | if (MAXARG < 1) |
1792 | anum = 0; |
1793 | else |
1794 | anum = SvIVx(POPs); |
1795 | my_exit(anum); |
1796 | PUSHs(&sv_undef); |
1797 | RETURN; |
1798 | } |
1799 | |
1800 | #ifdef NOTYET |
1801 | PP(pp_nswitch) |
1802 | { |
1803 | dSP; |
1804 | double value = SvNVx(GvSV(cCOP->cop_gv)); |
1805 | register I32 match = I_32(value); |
1806 | |
1807 | if (value < 0.0) { |
1808 | if (((double)match) > value) |
1809 | --match; /* was fractional--truncate other way */ |
1810 | } |
1811 | match -= cCOP->uop.scop.scop_offset; |
1812 | if (match < 0) |
1813 | match = 0; |
1814 | else if (match > cCOP->uop.scop.scop_max) |
1815 | match = cCOP->uop.scop.scop_max; |
1816 | op = cCOP->uop.scop.scop_next[match]; |
1817 | RETURNOP(op); |
1818 | } |
1819 | |
1820 | PP(pp_cswitch) |
1821 | { |
1822 | dSP; |
1823 | register I32 match; |
1824 | |
1825 | if (multiline) |
1826 | op = op->op_next; /* can't assume anything */ |
1827 | else { |
1828 | match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255; |
1829 | match -= cCOP->uop.scop.scop_offset; |
1830 | if (match < 0) |
1831 | match = 0; |
1832 | else if (match > cCOP->uop.scop.scop_max) |
1833 | match = cCOP->uop.scop.scop_max; |
1834 | op = cCOP->uop.scop.scop_next[match]; |
1835 | } |
1836 | RETURNOP(op); |
1837 | } |
1838 | #endif |
1839 | |
1840 | /* Eval. */ |
1841 | |
1842 | static void |
1843 | save_lines(array, sv) |
1844 | AV *array; |
1845 | SV *sv; |
1846 | { |
1847 | register char *s = SvPVX(sv); |
1848 | register char *send = SvPVX(sv) + SvCUR(sv); |
1849 | register char *t; |
1850 | register I32 line = 1; |
1851 | |
1852 | while (s && s < send) { |
1853 | SV *tmpstr = NEWSV(85,0); |
1854 | |
1855 | sv_upgrade(tmpstr, SVt_PVMG); |
1856 | t = strchr(s, '\n'); |
1857 | if (t) |
1858 | t++; |
1859 | else |
1860 | t = send; |
1861 | |
1862 | sv_setpvn(tmpstr, s, t - s); |
1863 | av_store(array, line++, tmpstr); |
1864 | s = t; |
1865 | } |
1866 | } |
1867 | |
1868 | static OP * |
1869 | doeval(gimme) |
1870 | int gimme; |
1871 | { |
1872 | dSP; |
1873 | OP *saveop = op; |
1874 | HV *newstash; |
748a9306 |
1875 | AV* comppadlist; |
a0d0e21e |
1876 | |
1877 | in_eval = 1; |
1878 | |
1879 | /* set up a scratch pad */ |
1880 | |
1881 | SAVEINT(padix); |
1882 | SAVESPTR(curpad); |
1883 | SAVESPTR(comppad); |
1884 | SAVESPTR(comppad_name); |
1885 | SAVEINT(comppad_name_fill); |
1886 | SAVEINT(min_intro_pending); |
1887 | SAVEINT(max_intro_pending); |
748a9306 |
1888 | |
1889 | SAVESPTR(compcv); |
1890 | compcv = (CV*)NEWSV(1104,0); |
1891 | sv_upgrade((SV *)compcv, SVt_PVCV); |
1892 | |
a0d0e21e |
1893 | comppad = newAV(); |
1894 | comppad_name = newAV(); |
1895 | comppad_name_fill = 0; |
1896 | min_intro_pending = 0; |
1897 | av_push(comppad, Nullsv); |
1898 | curpad = AvARRAY(comppad); |
1899 | padix = 0; |
1900 | |
748a9306 |
1901 | comppadlist = newAV(); |
1902 | AvREAL_off(comppadlist); |
8e07c86e |
1903 | av_store(comppadlist, 0, (SV*)comppad_name); |
1904 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
1905 | CvPADLIST(compcv) = comppadlist; |
8e07c86e |
1906 | SAVEFREESV(compcv); |
748a9306 |
1907 | |
a0d0e21e |
1908 | /* make sure we compile in the right package */ |
1909 | |
1910 | newstash = curcop->cop_stash; |
1911 | if (curstash != newstash) { |
1912 | SAVESPTR(curstash); |
1913 | curstash = newstash; |
1914 | } |
1915 | SAVESPTR(beginav); |
1916 | beginav = newAV(); |
1917 | SAVEFREESV(beginav); |
1918 | |
1919 | /* try to compile it */ |
1920 | |
1921 | eval_root = Nullop; |
1922 | error_count = 0; |
1923 | curcop = &compiling; |
1924 | curcop->cop_arybase = 0; |
1925 | rs = "\n"; |
1926 | rslen = 1; |
1927 | rschar = '\n'; |
1928 | rspara = 0; |
1929 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
1930 | if (yyparse() || error_count || !eval_root) { |
1931 | SV **newsp; |
1932 | I32 gimme; |
1933 | CONTEXT *cx; |
1934 | I32 optype; |
1935 | |
1936 | op = saveop; |
1937 | if (eval_root) { |
1938 | op_free(eval_root); |
1939 | eval_root = Nullop; |
1940 | } |
1941 | POPBLOCK(cx,curpm); |
1942 | POPEVAL(cx); |
1943 | pop_return(); |
1944 | lex_end(); |
1945 | LEAVE; |
1946 | if (optype == OP_REQUIRE) |
1947 | DIE("%s", SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), na)); |
1948 | rs = nrs; |
1949 | rslen = nrslen; |
1950 | rschar = nrschar; |
1951 | rspara = (nrslen == 2); |
1952 | RETPUSHUNDEF; |
1953 | } |
1954 | rs = nrs; |
1955 | rslen = nrslen; |
1956 | rschar = nrschar; |
1957 | rspara = (nrslen == 2); |
1958 | compiling.cop_line = 0; |
a0d0e21e |
1959 | SAVEFREEOP(eval_root); |
1960 | if (gimme & G_ARRAY) |
1961 | list(eval_root); |
1962 | else |
1963 | scalar(eval_root); |
1964 | |
1965 | DEBUG_x(dump_eval()); |
1966 | |
1967 | /* compiled okay, so do it */ |
1968 | |
1969 | RETURNOP(eval_start); |
1970 | } |
1971 | |
1972 | PP(pp_require) |
1973 | { |
1974 | dSP; |
1975 | register CONTEXT *cx; |
1976 | SV *sv; |
1977 | char *name; |
1978 | char *tmpname; |
1979 | SV** svp; |
1980 | I32 gimme = G_SCALAR; |
1981 | FILE *tryrsfp = 0; |
1982 | |
1983 | sv = POPs; |
1984 | if (SvNIOK(sv) && !SvPOKp(sv)) { |
1985 | if (atof(patchlevel) + 0.000999 < SvNV(sv)) |
1986 | DIE("Perl %3.3f required--this is only version %s, stopped", |
1987 | SvNV(sv),patchlevel); |
1988 | RETPUSHYES; |
1989 | } |
1990 | name = SvPV(sv, na); |
1991 | if (!*name) |
1992 | DIE("Null filename used"); |
1993 | if (op->op_type == OP_REQUIRE && |
1994 | (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) && |
1995 | *svp != &sv_undef) |
1996 | RETPUSHYES; |
1997 | |
1998 | /* prepare to compile file */ |
1999 | |
2000 | tmpname = savepv(name); |
2001 | if (*tmpname == '/' || |
2002 | (*tmpname == '.' && |
2003 | (tmpname[1] == '/' || |
748a9306 |
2004 | (tmpname[1] == '.' && tmpname[2] == '/'))) |
2005 | #ifdef VMS |
2006 | || ((*tmpname == '[' || *tmpname == '<') && |
2007 | (tmpname[1] == '-' || tmpname[1] == ']' || tmpname[1] == '>')) |
2008 | #endif |
2009 | ) |
a0d0e21e |
2010 | { |
2011 | tryrsfp = fopen(tmpname,"r"); |
2012 | } |
2013 | else { |
2014 | AV *ar = GvAVn(incgv); |
2015 | I32 i; |
2016 | |
2017 | for (i = 0; i <= AvFILL(ar); i++) { |
748a9306 |
2018 | #ifdef VMS |
2019 | if (tounixpath_ts(SvPVx(*av_fetch(ar, i, TRUE), na),buf) == NULL) |
2020 | croak("Error converting file specification %s", |
2021 | SvPVx(*av_fetch(ar, i, TRUE), na)); |
2022 | strcat(buf,name); |
2023 | #else |
a0d0e21e |
2024 | (void)sprintf(buf, "%s/%s", |
2025 | SvPVx(*av_fetch(ar, i, TRUE), na), name); |
748a9306 |
2026 | #endif |
a0d0e21e |
2027 | tryrsfp = fopen(buf, "r"); |
2028 | if (tryrsfp) { |
2029 | char *s = buf; |
2030 | |
2031 | if (*s == '.' && s[1] == '/') |
2032 | s += 2; |
2033 | Safefree(tmpname); |
2034 | tmpname = savepv(s); |
2035 | break; |
2036 | } |
2037 | } |
2038 | } |
2039 | SAVESPTR(compiling.cop_filegv); |
2040 | compiling.cop_filegv = gv_fetchfile(tmpname); |
2041 | Safefree(tmpname); |
2042 | tmpname = Nullch; |
2043 | if (!tryrsfp) { |
2044 | if (op->op_type == OP_REQUIRE) { |
2045 | sprintf(tokenbuf,"Can't locate %s in @INC", name); |
2046 | if (instr(tokenbuf,".h ")) |
2047 | strcat(tokenbuf," (change .h to .ph maybe?)"); |
2048 | if (instr(tokenbuf,".ph ")) |
2049 | strcat(tokenbuf," (did you run h2ph?)"); |
2050 | DIE("%s",tokenbuf); |
2051 | } |
2052 | |
2053 | RETPUSHUNDEF; |
2054 | } |
2055 | |
2056 | /* Assume success here to prevent recursive requirement. */ |
2057 | (void)hv_store(GvHVn(incgv), name, strlen(name), |
2058 | newSVsv(GvSV(compiling.cop_filegv)), 0 ); |
2059 | |
2060 | ENTER; |
2061 | SAVETMPS; |
2062 | lex_start(sv_2mortal(newSVpv("",0))); |
e50aee73 |
2063 | if (rsfp_filters){ |
2064 | save_aptr(&rsfp_filters); |
2065 | rsfp_filters = NULL; |
2066 | } |
2067 | |
a0d0e21e |
2068 | rsfp = tryrsfp; |
2069 | name = savepv(name); |
2070 | SAVEFREEPV(name); |
2071 | SAVEI32(hints); |
2072 | hints = 0; |
2073 | |
2074 | /* switch to eval mode */ |
2075 | |
2076 | push_return(op->op_next); |
2077 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2078 | PUSHEVAL(cx, name, compiling.cop_filegv); |
2079 | |
2080 | compiling.cop_line = 0; |
2081 | |
2082 | PUTBACK; |
2083 | return doeval(G_SCALAR); |
2084 | } |
2085 | |
2086 | PP(pp_dofile) |
2087 | { |
2088 | return pp_require(ARGS); |
2089 | } |
2090 | |
2091 | PP(pp_entereval) |
2092 | { |
2093 | dSP; |
2094 | register CONTEXT *cx; |
2095 | dPOPss; |
2096 | I32 gimme = GIMME; |
2097 | char tmpbuf[32]; |
2098 | STRLEN len; |
2099 | |
2100 | if (!SvPV(sv,len) || !len) |
2101 | RETPUSHUNDEF; |
748a9306 |
2102 | TAINT_PROPER("eval"); |
a0d0e21e |
2103 | |
2104 | ENTER; |
a0d0e21e |
2105 | lex_start(sv); |
748a9306 |
2106 | SAVETMPS; |
a0d0e21e |
2107 | |
2108 | /* switch to eval mode */ |
2109 | |
748a9306 |
2110 | SAVESPTR(compiling.cop_filegv); |
a0d0e21e |
2111 | sprintf(tmpbuf, "_<(eval %d)", ++evalseq); |
2112 | compiling.cop_filegv = gv_fetchfile(tmpbuf+2); |
2113 | compiling.cop_line = 1; |
2114 | SAVEDELETE(defstash, savepv(tmpbuf), strlen(tmpbuf)); |
2115 | SAVEI32(hints); |
2116 | hints = op->op_targ; |
2117 | |
2118 | push_return(op->op_next); |
2119 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2120 | PUSHEVAL(cx, 0, compiling.cop_filegv); |
2121 | |
2122 | /* prepare to compile string */ |
2123 | |
2124 | if (perldb && curstash != debstash) |
2125 | save_lines(GvAV(compiling.cop_filegv), linestr); |
2126 | PUTBACK; |
2127 | return doeval(gimme); |
2128 | } |
2129 | |
2130 | PP(pp_leaveeval) |
2131 | { |
2132 | dSP; |
2133 | register SV **mark; |
2134 | SV **newsp; |
2135 | PMOP *newpm; |
2136 | I32 gimme; |
2137 | register CONTEXT *cx; |
2138 | OP *retop; |
2139 | I32 optype; |
2140 | |
2141 | POPBLOCK(cx,newpm); |
2142 | POPEVAL(cx); |
2143 | retop = pop_return(); |
2144 | |
2145 | if (gimme == G_SCALAR) { |
2146 | if (op->op_private & OPpLEAVE_VOID) |
2147 | MARK = newsp; |
2148 | else { |
2149 | MARK = newsp + 1; |
2150 | if (MARK <= SP) { |
2151 | if (SvFLAGS(TOPs) & SVs_TEMP) |
2152 | *MARK = TOPs; |
2153 | else |
2154 | *MARK = sv_mortalcopy(TOPs); |
2155 | } |
2156 | else { |
2157 | MEXTEND(mark,0); |
2158 | *MARK = &sv_undef; |
2159 | } |
2160 | } |
2161 | SP = MARK; |
2162 | } |
2163 | else { |
2164 | for (mark = newsp + 1; mark <= SP; mark++) |
2165 | if (!(SvFLAGS(TOPs) & SVs_TEMP)) |
2166 | *mark = sv_mortalcopy(*mark); |
2167 | /* in case LEAVE wipes old return values */ |
2168 | } |
2169 | curpm = newpm; /* Don't pop $1 et al till now */ |
2170 | |
2171 | if (optype != OP_ENTEREVAL) { |
2172 | char *name = cx->blk_eval.old_name; |
2173 | |
2174 | if (!(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) { |
2175 | /* Unassume the success we assumed earlier. */ |
748a9306 |
2176 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
a0d0e21e |
2177 | |
2178 | if (optype == OP_REQUIRE) |
2179 | retop = die("%s did not return a true value", name); |
2180 | } |
2181 | } |
2182 | |
2183 | lex_end(); |
2184 | LEAVE; |
2185 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
2186 | |
2187 | RETURNOP(retop); |
2188 | } |
2189 | |
a0d0e21e |
2190 | PP(pp_entertry) |
2191 | { |
2192 | dSP; |
2193 | register CONTEXT *cx; |
2194 | I32 gimme = GIMME; |
2195 | |
2196 | ENTER; |
2197 | SAVETMPS; |
2198 | |
2199 | push_return(cLOGOP->op_other->op_next); |
2200 | PUSHBLOCK(cx, CXt_EVAL, SP); |
2201 | PUSHEVAL(cx, 0, 0); |
2202 | eval_root = op; /* Only needed so that goto works right. */ |
2203 | |
2204 | in_eval = 1; |
2205 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
2206 | RETURN; |
2207 | } |
2208 | |
2209 | PP(pp_leavetry) |
2210 | { |
2211 | dSP; |
2212 | register SV **mark; |
2213 | SV **newsp; |
2214 | PMOP *newpm; |
2215 | I32 gimme; |
2216 | register CONTEXT *cx; |
2217 | I32 optype; |
2218 | |
2219 | POPBLOCK(cx,newpm); |
2220 | POPEVAL(cx); |
2221 | pop_return(); |
2222 | |
2223 | if (gimme == G_SCALAR) { |
2224 | if (op->op_private & OPpLEAVE_VOID) |
2225 | MARK = newsp; |
2226 | else { |
2227 | MARK = newsp + 1; |
2228 | if (MARK <= SP) { |
2229 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
2230 | *MARK = TOPs; |
2231 | else |
2232 | *MARK = sv_mortalcopy(TOPs); |
2233 | } |
2234 | else { |
2235 | MEXTEND(mark,0); |
2236 | *MARK = &sv_undef; |
2237 | } |
2238 | } |
2239 | SP = MARK; |
2240 | } |
2241 | else { |
2242 | for (mark = newsp + 1; mark <= SP; mark++) |
2243 | if (!(SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))) |
2244 | *mark = sv_mortalcopy(*mark); |
2245 | /* in case LEAVE wipes old return values */ |
2246 | } |
2247 | curpm = newpm; /* Don't pop $1 et al till now */ |
2248 | |
2249 | LEAVE; |
2250 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
2251 | RETURN; |
2252 | } |
2253 | |
2254 | static void |
2255 | doparseform(sv) |
2256 | SV *sv; |
2257 | { |
2258 | STRLEN len; |
2259 | register char *s = SvPV_force(sv, len); |
2260 | register char *send = s + len; |
2261 | register char *base; |
2262 | register I32 skipspaces = 0; |
2263 | bool noblank; |
2264 | bool repeat; |
2265 | bool postspace = FALSE; |
2266 | U16 *fops; |
2267 | register U16 *fpc; |
2268 | U16 *linepc; |
2269 | register I32 arg; |
2270 | bool ischop; |
2271 | |
2272 | New(804, fops, (send - s)*3+2, U16); /* Almost certainly too long... */ |
2273 | fpc = fops; |
2274 | |
2275 | if (s < send) { |
2276 | linepc = fpc; |
2277 | *fpc++ = FF_LINEMARK; |
2278 | noblank = repeat = FALSE; |
2279 | base = s; |
2280 | } |
2281 | |
2282 | while (s <= send) { |
2283 | switch (*s++) { |
2284 | default: |
2285 | skipspaces = 0; |
2286 | continue; |
2287 | |
2288 | case '~': |
2289 | if (*s == '~') { |
2290 | repeat = TRUE; |
2291 | *s = ' '; |
2292 | } |
2293 | noblank = TRUE; |
2294 | s[-1] = ' '; |
2295 | /* FALL THROUGH */ |
2296 | case ' ': case '\t': |
2297 | skipspaces++; |
2298 | continue; |
2299 | |
2300 | case '\n': case 0: |
2301 | arg = s - base; |
2302 | skipspaces++; |
2303 | arg -= skipspaces; |
2304 | if (arg) { |
2305 | if (postspace) { |
2306 | *fpc++ = FF_SPACE; |
2307 | postspace = FALSE; |
2308 | } |
2309 | *fpc++ = FF_LITERAL; |
2310 | *fpc++ = arg; |
2311 | } |
2312 | if (s <= send) |
2313 | skipspaces--; |
2314 | if (skipspaces) { |
2315 | *fpc++ = FF_SKIP; |
2316 | *fpc++ = skipspaces; |
2317 | } |
2318 | skipspaces = 0; |
2319 | if (s <= send) |
2320 | *fpc++ = FF_NEWLINE; |
2321 | if (noblank) { |
2322 | *fpc++ = FF_BLANK; |
2323 | if (repeat) |
2324 | arg = fpc - linepc + 1; |
2325 | else |
2326 | arg = 0; |
2327 | *fpc++ = arg; |
2328 | } |
2329 | if (s < send) { |
2330 | linepc = fpc; |
2331 | *fpc++ = FF_LINEMARK; |
2332 | noblank = repeat = FALSE; |
2333 | base = s; |
2334 | } |
2335 | else |
2336 | s++; |
2337 | continue; |
2338 | |
2339 | case '@': |
2340 | case '^': |
2341 | ischop = s[-1] == '^'; |
2342 | |
2343 | if (postspace) { |
2344 | *fpc++ = FF_SPACE; |
2345 | postspace = FALSE; |
2346 | } |
2347 | arg = (s - base) - 1; |
2348 | if (arg) { |
2349 | *fpc++ = FF_LITERAL; |
2350 | *fpc++ = arg; |
2351 | } |
2352 | |
2353 | base = s - 1; |
2354 | *fpc++ = FF_FETCH; |
2355 | if (*s == '*') { |
2356 | s++; |
2357 | *fpc++ = 0; |
2358 | *fpc++ = FF_LINEGLOB; |
2359 | } |
2360 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { |
2361 | arg = ischop ? 512 : 0; |
2362 | base = s - 1; |
2363 | while (*s == '#') |
2364 | s++; |
2365 | if (*s == '.') { |
2366 | char *f; |
2367 | s++; |
2368 | f = s; |
2369 | while (*s == '#') |
2370 | s++; |
2371 | arg |= 256 + (s - f); |
2372 | } |
2373 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2374 | *fpc++ = FF_DECIMAL; |
2375 | *fpc++ = arg; |
2376 | } |
2377 | else { |
2378 | I32 prespace = 0; |
2379 | bool ismore = FALSE; |
2380 | |
2381 | if (*s == '>') { |
2382 | while (*++s == '>') ; |
2383 | prespace = FF_SPACE; |
2384 | } |
2385 | else if (*s == '|') { |
2386 | while (*++s == '|') ; |
2387 | prespace = FF_HALFSPACE; |
2388 | postspace = TRUE; |
2389 | } |
2390 | else { |
2391 | if (*s == '<') |
2392 | while (*++s == '<') ; |
2393 | postspace = TRUE; |
2394 | } |
2395 | if (*s == '.' && s[1] == '.' && s[2] == '.') { |
2396 | s += 3; |
2397 | ismore = TRUE; |
2398 | } |
2399 | *fpc++ = s - base; /* fieldsize for FETCH */ |
2400 | |
2401 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; |
2402 | |
2403 | if (prespace) |
2404 | *fpc++ = prespace; |
2405 | *fpc++ = FF_ITEM; |
2406 | if (ismore) |
2407 | *fpc++ = FF_MORE; |
2408 | if (ischop) |
2409 | *fpc++ = FF_CHOP; |
2410 | } |
2411 | base = s; |
2412 | skipspaces = 0; |
2413 | continue; |
2414 | } |
2415 | } |
2416 | *fpc++ = FF_END; |
2417 | |
2418 | arg = fpc - fops; |
2419 | { /* need to jump to the next word */ |
2420 | int z; |
2421 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; |
2422 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4); |
2423 | s = SvPVX(sv) + SvCUR(sv) + z; |
2424 | } |
2425 | Copy(fops, s, arg, U16); |
2426 | Safefree(fops); |
2427 | SvCOMPILED_on(sv); |
2428 | } |
2429 | |