Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.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 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
19 | #include "perl.h" |
20 | |
21 | /* Hot code. */ |
22 | |
23 | PP(pp_const) |
24 | { |
25 | dSP; |
26 | XPUSHs(cSVOP->op_sv); |
27 | RETURN; |
28 | } |
29 | |
30 | PP(pp_nextstate) |
31 | { |
32 | curcop = (COP*)op; |
33 | TAINT_NOT; /* Each statement is presumed innocent */ |
34 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
35 | FREETMPS; |
36 | return NORMAL; |
37 | } |
38 | |
39 | PP(pp_gvsv) |
40 | { |
41 | dSP; |
42 | EXTEND(sp,1); |
43 | if (op->op_private & OPpLVAL_INTRO) |
44 | PUSHs(save_scalar(cGVOP->op_gv)); |
45 | else |
46 | PUSHs(GvSV(cGVOP->op_gv)); |
47 | RETURN; |
48 | } |
49 | |
50 | PP(pp_null) |
51 | { |
52 | return NORMAL; |
53 | } |
54 | |
55 | PP(pp_pushmark) |
56 | { |
57 | PUSHMARK(stack_sp); |
58 | return NORMAL; |
59 | } |
60 | |
61 | PP(pp_stringify) |
62 | { |
63 | dSP; dTARGET; |
64 | STRLEN len; |
65 | char *s; |
66 | s = SvPV(TOPs,len); |
67 | sv_setpvn(TARG,s,len); |
68 | SETTARG; |
69 | RETURN; |
70 | } |
71 | |
72 | PP(pp_gv) |
73 | { |
74 | dSP; |
75 | XPUSHs((SV*)cGVOP->op_gv); |
76 | RETURN; |
77 | } |
78 | |
c07a80fd |
79 | PP(pp_gelem) |
80 | { |
81 | GV *gv; |
82 | SV *sv; |
83 | SV *ref; |
84 | char *elem; |
85 | dSP; |
86 | |
87 | sv = POPs; |
88 | elem = SvPV(sv, na); |
89 | gv = (GV*)POPs; |
90 | ref = Nullsv; |
91 | sv = Nullsv; |
92 | switch (elem ? *elem : '\0') |
93 | { |
94 | case 'A': |
95 | if (strEQ(elem, "ARRAY")) |
96 | ref = (SV*)GvAV(gv); |
97 | break; |
98 | case 'C': |
99 | if (strEQ(elem, "CODE")) |
100 | ref = (SV*)GvCV(gv); |
101 | break; |
102 | case 'F': |
103 | if (strEQ(elem, "FILEHANDLE")) |
104 | ref = (SV*)GvIOp(gv); |
105 | break; |
106 | case 'G': |
107 | if (strEQ(elem, "GLOB")) |
108 | ref = (SV*)gv; |
109 | break; |
110 | case 'H': |
111 | if (strEQ(elem, "HASH")) |
112 | ref = (SV*)GvHV(gv); |
113 | break; |
114 | case 'N': |
115 | if (strEQ(elem, "NAME")) |
116 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); |
117 | break; |
118 | case 'P': |
119 | if (strEQ(elem, "PACKAGE")) |
120 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); |
121 | break; |
122 | case 'S': |
123 | if (strEQ(elem, "SCALAR")) |
124 | ref = GvSV(gv); |
125 | break; |
126 | } |
127 | if (ref) |
128 | sv = newRV(ref); |
129 | if (sv) |
130 | sv_2mortal(sv); |
131 | else |
132 | sv = &sv_undef; |
133 | XPUSHs(sv); |
134 | RETURN; |
135 | } |
136 | |
a0d0e21e |
137 | PP(pp_and) |
138 | { |
139 | dSP; |
140 | if (!SvTRUE(TOPs)) |
141 | RETURN; |
142 | else { |
143 | --SP; |
144 | RETURNOP(cLOGOP->op_other); |
145 | } |
146 | } |
147 | |
148 | PP(pp_sassign) |
149 | { |
150 | dSP; dPOPTOPssrl; |
748a9306 |
151 | MAGIC *mg; |
152 | |
a0d0e21e |
153 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
154 | SV *temp; |
155 | temp = left; left = right; right = temp; |
156 | } |
157 | if (tainting && tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) || |
748a9306 |
158 | !((mg = mg_find(left, 't')) && mg->mg_len & 1))) |
159 | { |
a0d0e21e |
160 | TAINT_NOT; |
161 | } |
162 | SvSetSV(right, left); |
163 | SvSETMAGIC(right); |
164 | SETs(right); |
165 | RETURN; |
166 | } |
167 | |
168 | PP(pp_cond_expr) |
169 | { |
170 | dSP; |
171 | if (SvTRUEx(POPs)) |
172 | RETURNOP(cCONDOP->op_true); |
173 | else |
174 | RETURNOP(cCONDOP->op_false); |
175 | } |
176 | |
177 | PP(pp_unstack) |
178 | { |
179 | I32 oldsave; |
180 | TAINT_NOT; /* Each statement is presumed innocent */ |
181 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
182 | FREETMPS; |
183 | oldsave = scopestack[scopestack_ix - 1]; |
184 | LEAVE_SCOPE(oldsave); |
185 | return NORMAL; |
186 | } |
187 | |
188 | PP(pp_seq) |
189 | { |
190 | dSP; tryAMAGICbinSET(seq,0); |
191 | { |
192 | dPOPTOPssrl; |
193 | SETs( sv_eq(left, right) ? &sv_yes : &sv_no ); |
194 | RETURN; |
195 | } |
196 | } |
197 | |
198 | PP(pp_concat) |
199 | { |
748a9306 |
200 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
201 | { |
202 | dPOPTOPssrl; |
a0d0e21e |
203 | STRLEN len; |
204 | char *s; |
205 | if (TARG != left) { |
206 | s = SvPV(left,len); |
207 | sv_setpvn(TARG,s,len); |
208 | } |
c07a80fd |
209 | else if (SvGMAGICAL(TARG)) |
210 | mg_get(TARG); |
4633a7c4 |
211 | else if (!SvOK(TARG)) { |
212 | s = SvPV_force(TARG, len); |
748a9306 |
213 | sv_setpv(TARG, ""); /* Suppress warning. */ |
4633a7c4 |
214 | } |
a0d0e21e |
215 | s = SvPV(right,len); |
216 | sv_catpvn(TARG,s,len); |
217 | SETTARG; |
218 | RETURN; |
748a9306 |
219 | } |
a0d0e21e |
220 | } |
221 | |
222 | PP(pp_padsv) |
223 | { |
224 | dSP; dTARGET; |
225 | XPUSHs(TARG); |
4633a7c4 |
226 | if (op->op_flags & OPf_MOD) { |
227 | if (op->op_private & OPpLVAL_INTRO) |
228 | SAVECLEARSV(curpad[op->op_targ]); |
02a9e968 |
229 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
230 | provide_ref(op, curpad[op->op_targ]); |
4633a7c4 |
231 | } |
a0d0e21e |
232 | RETURN; |
233 | } |
234 | |
235 | PP(pp_readline) |
236 | { |
237 | last_in_gv = (GV*)(*stack_sp--); |
238 | return do_readline(); |
239 | } |
240 | |
241 | PP(pp_eq) |
242 | { |
243 | dSP; tryAMAGICbinSET(eq,0); |
244 | { |
245 | dPOPnv; |
246 | SETs((TOPn == value) ? &sv_yes : &sv_no); |
247 | RETURN; |
248 | } |
249 | } |
250 | |
251 | PP(pp_preinc) |
252 | { |
253 | dSP; |
748a9306 |
254 | if (SvIOK(TOPs)) { |
255 | ++SvIVX(TOPs); |
256 | SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK); |
257 | } |
258 | else |
259 | sv_inc(TOPs); |
a0d0e21e |
260 | SvSETMAGIC(TOPs); |
261 | return NORMAL; |
262 | } |
263 | |
264 | PP(pp_or) |
265 | { |
266 | dSP; |
267 | if (SvTRUE(TOPs)) |
268 | RETURN; |
269 | else { |
270 | --SP; |
271 | RETURNOP(cLOGOP->op_other); |
272 | } |
273 | } |
274 | |
275 | PP(pp_add) |
276 | { |
277 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
278 | { |
279 | dPOPTOPnnrl; |
280 | SETn( left + right ); |
281 | RETURN; |
282 | } |
283 | } |
284 | |
285 | PP(pp_aelemfast) |
286 | { |
287 | dSP; |
288 | AV *av = GvAV((GV*)cSVOP->op_sv); |
289 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
290 | PUSHs(svp ? *svp : &sv_undef); |
291 | RETURN; |
292 | } |
293 | |
294 | PP(pp_join) |
295 | { |
296 | dSP; dMARK; dTARGET; |
297 | MARK++; |
298 | do_join(TARG, *MARK, MARK, SP); |
299 | SP = MARK; |
300 | SETs(TARG); |
301 | RETURN; |
302 | } |
303 | |
304 | PP(pp_pushre) |
305 | { |
306 | dSP; |
307 | XPUSHs((SV*)op); |
308 | RETURN; |
309 | } |
310 | |
311 | /* Oversized hot code. */ |
312 | |
313 | PP(pp_print) |
314 | { |
315 | dSP; dMARK; dORIGMARK; |
316 | GV *gv; |
317 | IO *io; |
318 | register FILE *fp; |
319 | |
320 | if (op->op_flags & OPf_STACKED) |
321 | gv = (GV*)*++MARK; |
322 | else |
323 | gv = defoutgv; |
324 | if (!(io = GvIO(gv))) { |
748a9306 |
325 | if (dowarn) { |
326 | SV* sv = sv_newmortal(); |
327 | gv_fullname(sv,gv); |
328 | warn("Filehandle %s never opened", SvPV(sv,na)); |
329 | } |
330 | |
331 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
332 | goto just_say_no; |
333 | } |
334 | else if (!(fp = IoOFP(io))) { |
335 | if (dowarn) { |
748a9306 |
336 | SV* sv = sv_newmortal(); |
337 | gv_fullname(sv,gv); |
a0d0e21e |
338 | if (IoIFP(io)) |
748a9306 |
339 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
340 | else |
748a9306 |
341 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
342 | } |
748a9306 |
343 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
344 | goto just_say_no; |
345 | } |
346 | else { |
347 | MARK++; |
348 | if (ofslen) { |
349 | while (MARK <= SP) { |
350 | if (!do_print(*MARK, fp)) |
351 | break; |
352 | MARK++; |
353 | if (MARK <= SP) { |
354 | if (fwrite1(ofs, 1, ofslen, fp) == 0 || ferror(fp)) { |
355 | MARK--; |
356 | break; |
357 | } |
358 | } |
359 | } |
360 | } |
361 | else { |
362 | while (MARK <= SP) { |
363 | if (!do_print(*MARK, fp)) |
364 | break; |
365 | MARK++; |
366 | } |
367 | } |
368 | if (MARK <= SP) |
369 | goto just_say_no; |
370 | else { |
371 | if (orslen) |
372 | if (fwrite1(ors, 1, orslen, fp) == 0 || ferror(fp)) |
373 | goto just_say_no; |
374 | |
375 | if (IoFLAGS(io) & IOf_FLUSH) |
a5f75d66 |
376 | if (Fflush(fp) == EOF) |
a0d0e21e |
377 | goto just_say_no; |
378 | } |
379 | } |
380 | SP = ORIGMARK; |
381 | PUSHs(&sv_yes); |
382 | RETURN; |
383 | |
384 | just_say_no: |
385 | SP = ORIGMARK; |
386 | PUSHs(&sv_undef); |
387 | RETURN; |
388 | } |
389 | |
390 | PP(pp_rv2av) |
391 | { |
392 | dSP; dPOPss; |
393 | |
394 | AV *av; |
395 | |
396 | if (SvROK(sv)) { |
397 | wasref: |
398 | av = (AV*)SvRV(sv); |
399 | if (SvTYPE(av) != SVt_PVAV) |
400 | DIE("Not an ARRAY reference"); |
401 | if (op->op_private & OPpLVAL_INTRO) |
402 | av = (AV*)save_svref((SV**)sv); |
403 | if (op->op_flags & OPf_REF) { |
404 | PUSHs((SV*)av); |
405 | RETURN; |
406 | } |
407 | } |
408 | else { |
409 | if (SvTYPE(sv) == SVt_PVAV) { |
410 | av = (AV*)sv; |
411 | if (op->op_flags & OPf_REF) { |
412 | PUSHs((SV*)av); |
413 | RETURN; |
414 | } |
415 | } |
416 | else { |
67955e0c |
417 | GV *gv; |
418 | |
a0d0e21e |
419 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
420 | char *sym; |
421 | |
a0d0e21e |
422 | if (SvGMAGICAL(sv)) { |
423 | mg_get(sv); |
424 | if (SvROK(sv)) |
425 | goto wasref; |
426 | } |
427 | if (!SvOK(sv)) { |
428 | if (op->op_flags & OPf_REF || |
429 | op->op_private & HINT_STRICT_REFS) |
430 | DIE(no_usym, "an ARRAY"); |
4633a7c4 |
431 | if (GIMME == G_ARRAY) |
432 | RETURN; |
a0d0e21e |
433 | RETPUSHUNDEF; |
434 | } |
748a9306 |
435 | sym = SvPV(sv,na); |
a0d0e21e |
436 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
437 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
438 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
439 | } else { |
440 | gv = (GV*)sv; |
a0d0e21e |
441 | } |
67955e0c |
442 | av = GvAVn(gv); |
a0d0e21e |
443 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
444 | av = save_ary(gv); |
a0d0e21e |
445 | if (op->op_flags & OPf_REF) { |
446 | PUSHs((SV*)av); |
447 | RETURN; |
448 | } |
449 | } |
450 | } |
451 | |
452 | if (GIMME == G_ARRAY) { |
453 | I32 maxarg = AvFILL(av) + 1; |
454 | EXTEND(SP, maxarg); |
455 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
456 | SP += maxarg; |
457 | } |
458 | else { |
459 | dTARGET; |
460 | I32 maxarg = AvFILL(av) + 1; |
461 | PUSHi(maxarg); |
462 | } |
463 | RETURN; |
464 | } |
465 | |
466 | PP(pp_rv2hv) |
467 | { |
468 | |
469 | dSP; dTOPss; |
470 | |
471 | HV *hv; |
472 | |
473 | if (SvROK(sv)) { |
474 | wasref: |
475 | hv = (HV*)SvRV(sv); |
476 | if (SvTYPE(hv) != SVt_PVHV) |
477 | DIE("Not a HASH reference"); |
478 | if (op->op_private & OPpLVAL_INTRO) |
479 | hv = (HV*)save_svref((SV**)sv); |
480 | if (op->op_flags & OPf_REF) { |
481 | SETs((SV*)hv); |
482 | RETURN; |
483 | } |
484 | } |
485 | else { |
486 | if (SvTYPE(sv) == SVt_PVHV) { |
487 | hv = (HV*)sv; |
488 | if (op->op_flags & OPf_REF) { |
489 | SETs((SV*)hv); |
490 | RETURN; |
491 | } |
492 | } |
493 | else { |
67955e0c |
494 | GV *gv; |
495 | |
a0d0e21e |
496 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
497 | char *sym; |
498 | |
a0d0e21e |
499 | if (SvGMAGICAL(sv)) { |
500 | mg_get(sv); |
501 | if (SvROK(sv)) |
502 | goto wasref; |
503 | } |
504 | if (!SvOK(sv)) { |
505 | if (op->op_flags & OPf_REF || |
506 | op->op_private & HINT_STRICT_REFS) |
507 | DIE(no_usym, "a HASH"); |
4633a7c4 |
508 | if (GIMME == G_ARRAY) { |
509 | SP--; |
510 | RETURN; |
511 | } |
a0d0e21e |
512 | RETSETUNDEF; |
513 | } |
748a9306 |
514 | sym = SvPV(sv,na); |
a0d0e21e |
515 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
516 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
517 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
518 | } else { |
519 | gv = (GV*)sv; |
a0d0e21e |
520 | } |
67955e0c |
521 | hv = GvHVn(gv); |
a0d0e21e |
522 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
523 | hv = save_hash(gv); |
a0d0e21e |
524 | if (op->op_flags & OPf_REF) { |
525 | SETs((SV*)hv); |
526 | RETURN; |
527 | } |
528 | } |
529 | } |
530 | |
531 | if (GIMME == G_ARRAY) { /* array wanted */ |
532 | *stack_sp = (SV*)hv; |
533 | return do_kv(ARGS); |
534 | } |
535 | else { |
536 | dTARGET; |
537 | if (HvFILL(hv)) { |
538 | sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1); |
539 | sv_setpv(TARG, buf); |
540 | } |
541 | else |
542 | sv_setiv(TARG, 0); |
543 | SETTARG; |
544 | RETURN; |
545 | } |
546 | } |
547 | |
548 | PP(pp_aassign) |
549 | { |
550 | dSP; |
551 | SV **lastlelem = stack_sp; |
552 | SV **lastrelem = stack_base + POPMARK; |
553 | SV **firstrelem = stack_base + POPMARK + 1; |
554 | SV **firstlelem = lastrelem + 1; |
555 | |
556 | register SV **relem; |
557 | register SV **lelem; |
558 | |
559 | register SV *sv; |
560 | register AV *ary; |
561 | |
562 | HV *hash; |
563 | I32 i; |
564 | int magic; |
565 | |
566 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
567 | |
568 | /* If there's a common identifier on both sides we have to take |
569 | * special care that assigning the identifier on the left doesn't |
570 | * clobber a value on the right that's used later in the list. |
571 | */ |
572 | if (op->op_private & OPpASSIGN_COMMON) { |
573 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
574 | /*SUPPRESS 560*/ |
575 | if (sv = *relem) |
576 | *relem = sv_mortalcopy(sv); |
577 | } |
578 | } |
579 | |
580 | relem = firstrelem; |
581 | lelem = firstlelem; |
582 | ary = Null(AV*); |
583 | hash = Null(HV*); |
584 | while (lelem <= lastlelem) { |
4633a7c4 |
585 | tainted = 0; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
586 | sv = *lelem++; |
587 | switch (SvTYPE(sv)) { |
588 | case SVt_PVAV: |
589 | ary = (AV*)sv; |
748a9306 |
590 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
591 | |
592 | av_clear(ary); |
593 | i = 0; |
594 | while (relem <= lastrelem) { /* gobble up all the rest */ |
595 | sv = NEWSV(28,0); |
596 | assert(*relem); |
597 | sv_setsv(sv,*relem); |
598 | *(relem++) = sv; |
599 | (void)av_store(ary,i++,sv); |
600 | if (magic) |
601 | mg_set(sv); |
4633a7c4 |
602 | tainted = 0; |
a0d0e21e |
603 | } |
604 | break; |
605 | case SVt_PVHV: { |
606 | char *tmps; |
607 | SV *tmpstr; |
608 | |
609 | hash = (HV*)sv; |
748a9306 |
610 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
611 | hv_clear(hash); |
612 | |
613 | while (relem < lastrelem) { /* gobble up all the rest */ |
614 | STRLEN len; |
4633a7c4 |
615 | if (*relem) |
a0d0e21e |
616 | sv = *(relem++); |
4633a7c4 |
617 | else |
a0d0e21e |
618 | sv = &sv_no, relem++; |
619 | tmps = SvPV(sv, len); |
620 | tmpstr = NEWSV(29,0); |
621 | if (*relem) |
622 | sv_setsv(tmpstr,*relem); /* value */ |
623 | *(relem++) = tmpstr; |
624 | (void)hv_store(hash,tmps,len,tmpstr,0); |
625 | if (magic) |
626 | mg_set(tmpstr); |
4633a7c4 |
627 | tainted = 0; |
8e07c86e |
628 | } |
a0d0e21e |
629 | } |
630 | break; |
631 | default: |
632 | if (SvTHINKFIRST(sv)) { |
633 | if (SvREADONLY(sv) && curcop != &compiling) { |
634 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
635 | DIE(no_modify); |
636 | if (relem <= lastrelem) |
637 | relem++; |
638 | break; |
639 | } |
640 | if (SvROK(sv)) |
641 | sv_unref(sv); |
642 | } |
643 | if (relem <= lastrelem) { |
644 | sv_setsv(sv, *relem); |
645 | *(relem++) = sv; |
646 | } |
647 | else |
648 | sv_setsv(sv, &sv_undef); |
649 | SvSETMAGIC(sv); |
650 | break; |
651 | } |
652 | } |
653 | if (delaymagic & ~DM_DELAY) { |
654 | if (delaymagic & DM_UID) { |
655 | #ifdef HAS_SETRESUID |
656 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
657 | #else |
658 | # ifdef HAS_SETREUID |
a0d0e21e |
659 | (void)setreuid(uid,euid); |
56febc5e |
660 | # else |
661 | # ifdef HAS_SETRUID |
a0d0e21e |
662 | if ((delaymagic & DM_UID) == DM_RUID) { |
663 | (void)setruid(uid); |
748a9306 |
664 | delaymagic &= ~DM_RUID; |
a0d0e21e |
665 | } |
56febc5e |
666 | # endif /* HAS_SETRUID */ |
667 | # ifdef HAS_SETEUID |
a0d0e21e |
668 | if ((delaymagic & DM_UID) == DM_EUID) { |
669 | (void)seteuid(uid); |
748a9306 |
670 | delaymagic &= ~DM_EUID; |
a0d0e21e |
671 | } |
56febc5e |
672 | # endif /* HAS_SETEUID */ |
a0d0e21e |
673 | if (delaymagic & DM_UID) { |
674 | if (uid != euid) |
675 | DIE("No setreuid available"); |
676 | (void)setuid(uid); |
677 | } |
56febc5e |
678 | # endif /* HAS_SETREUID */ |
679 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
680 | uid = (int)getuid(); |
681 | euid = (int)geteuid(); |
682 | } |
683 | if (delaymagic & DM_GID) { |
684 | #ifdef HAS_SETRESGID |
685 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
686 | #else |
687 | # ifdef HAS_SETREGID |
a0d0e21e |
688 | (void)setregid(gid,egid); |
56febc5e |
689 | # else |
690 | # ifdef HAS_SETRGID |
a0d0e21e |
691 | if ((delaymagic & DM_GID) == DM_RGID) { |
692 | (void)setrgid(gid); |
748a9306 |
693 | delaymagic &= ~DM_RGID; |
a0d0e21e |
694 | } |
56febc5e |
695 | # endif /* HAS_SETRGID */ |
696 | # ifdef HAS_SETEGID |
a0d0e21e |
697 | if ((delaymagic & DM_GID) == DM_EGID) { |
698 | (void)setegid(gid); |
748a9306 |
699 | delaymagic &= ~DM_EGID; |
a0d0e21e |
700 | } |
56febc5e |
701 | # endif /* HAS_SETEGID */ |
a0d0e21e |
702 | if (delaymagic & DM_GID) { |
703 | if (gid != egid) |
704 | DIE("No setregid available"); |
705 | (void)setgid(gid); |
706 | } |
56febc5e |
707 | # endif /* HAS_SETREGID */ |
708 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
709 | gid = (int)getgid(); |
710 | egid = (int)getegid(); |
711 | } |
4633a7c4 |
712 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
713 | } |
714 | delaymagic = 0; |
715 | if (GIMME == G_ARRAY) { |
716 | if (ary || hash) |
717 | SP = lastrelem; |
718 | else |
719 | SP = firstrelem + (lastlelem - firstlelem); |
720 | RETURN; |
721 | } |
722 | else { |
4633a7c4 |
723 | dTARGET; |
a0d0e21e |
724 | SP = firstrelem; |
a0d0e21e |
725 | |
4633a7c4 |
726 | SETi(lastrelem - firstrelem + 1); |
727 | RETURN; |
a0d0e21e |
728 | } |
729 | } |
730 | |
731 | PP(pp_match) |
732 | { |
733 | dSP; dTARG; |
734 | register PMOP *pm = cPMOP; |
735 | register char *t; |
736 | register char *s; |
737 | char *strend; |
738 | I32 global; |
739 | I32 safebase; |
740 | char *truebase; |
741 | register REGEXP *rx = pm->op_pmregexp; |
742 | I32 gimme = GIMME; |
743 | STRLEN len; |
748a9306 |
744 | I32 minmatch = 0; |
4633a7c4 |
745 | I32 oldsave = savestack_ix; |
a0d0e21e |
746 | |
747 | if (op->op_flags & OPf_STACKED) |
748 | TARG = POPs; |
749 | else { |
750 | TARG = GvSV(defgv); |
751 | EXTEND(SP,1); |
752 | } |
753 | s = SvPV(TARG, len); |
754 | strend = s + len; |
755 | if (!s) |
756 | DIE("panic: do_match"); |
757 | |
758 | if (pm->op_pmflags & PMf_USED) { |
759 | if (gimme == G_ARRAY) |
760 | RETURN; |
761 | RETPUSHNO; |
762 | } |
763 | |
764 | if (!rx->prelen && curpm) { |
765 | pm = curpm; |
766 | rx = pm->op_pmregexp; |
767 | } |
768 | truebase = t = s; |
769 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
770 | rx->startp[0] = 0; |
771 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
772 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
773 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
774 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
775 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
776 | } |
a0d0e21e |
777 | } |
778 | } |
748a9306 |
779 | if (!rx->nparens && !global) |
780 | gimme = G_SCALAR; /* accidental array context? */ |
a0d0e21e |
781 | safebase = (gimme == G_ARRAY) || global; |
782 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
783 | SAVEINT(multiline); |
784 | multiline = pm->op_pmflags & PMf_MULTILINE; |
785 | } |
786 | |
787 | play_it_again: |
788 | if (global && rx->startp[0]) { |
789 | t = s = rx->endp[0]; |
790 | if (s > strend) |
791 | goto nope; |
748a9306 |
792 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
793 | } |
794 | if (pm->op_pmshort) { |
795 | if (pm->op_pmflags & PMf_SCANFIRST) { |
796 | if (SvSCREAM(TARG)) { |
797 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
798 | goto nope; |
799 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
800 | goto nope; |
801 | else if (pm->op_pmflags & PMf_ALL) |
802 | goto yup; |
803 | } |
804 | else if (!(s = fbm_instr((unsigned char*)s, |
805 | (unsigned char*)strend, pm->op_pmshort))) |
806 | goto nope; |
807 | else if (pm->op_pmflags & PMf_ALL) |
808 | goto yup; |
809 | if (s && rx->regback >= 0) { |
810 | ++BmUSEFUL(pm->op_pmshort); |
811 | s -= rx->regback; |
812 | if (s < t) |
813 | s = t; |
814 | } |
815 | else |
816 | s = t; |
817 | } |
818 | else if (!multiline) { |
819 | if (*SvPVX(pm->op_pmshort) != *s || |
820 | bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) { |
821 | if (pm->op_pmflags & PMf_FOLD) { |
822 | if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) ) |
823 | goto nope; |
824 | } |
825 | else |
826 | goto nope; |
827 | } |
828 | } |
829 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
830 | SvREFCNT_dec(pm->op_pmshort); |
831 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
832 | } |
833 | } |
e50aee73 |
834 | if (pregexec(rx, s, strend, truebase, minmatch, |
a0d0e21e |
835 | SvSCREAM(TARG) ? TARG : Nullsv, |
836 | safebase)) { |
837 | curpm = pm; |
838 | if (pm->op_pmflags & PMf_ONCE) |
839 | pm->op_pmflags |= PMf_USED; |
840 | goto gotcha; |
841 | } |
842 | else |
843 | goto ret_no; |
844 | /*NOTREACHED*/ |
845 | |
846 | gotcha: |
847 | if (gimme == G_ARRAY) { |
848 | I32 iters, i, len; |
849 | |
850 | iters = rx->nparens; |
851 | if (global && !iters) |
852 | i = 1; |
853 | else |
854 | i = 0; |
855 | EXTEND(SP, iters + i); |
856 | for (i = !i; i <= iters; i++) { |
857 | PUSHs(sv_newmortal()); |
858 | /*SUPPRESS 560*/ |
859 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
860 | len = rx->endp[i] - s; |
861 | sv_setpvn(*SP, s, len); |
862 | } |
863 | } |
864 | if (global) { |
865 | truebase = rx->subbeg; |
866 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
867 | ++rx->endp[0]; |
868 | goto play_it_again; |
869 | } |
4633a7c4 |
870 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
871 | RETURN; |
872 | } |
873 | else { |
874 | if (global) { |
875 | MAGIC* mg = 0; |
876 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
877 | mg = mg_find(TARG, 'g'); |
878 | if (!mg) { |
879 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
880 | mg = mg_find(TARG, 'g'); |
881 | } |
748a9306 |
882 | if (rx->startp[0]) { |
883 | mg->mg_len = rx->endp[0] - truebase; |
884 | if (rx->startp[0] == rx->endp[0]) |
885 | mg->mg_flags |= MGf_MINMATCH; |
886 | else |
887 | mg->mg_flags &= ~MGf_MINMATCH; |
888 | } |
889 | else |
890 | mg->mg_len = -1; |
a0d0e21e |
891 | } |
4633a7c4 |
892 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
893 | RETPUSHYES; |
894 | } |
895 | |
896 | yup: |
897 | ++BmUSEFUL(pm->op_pmshort); |
898 | curpm = pm; |
899 | if (pm->op_pmflags & PMf_ONCE) |
900 | pm->op_pmflags |= PMf_USED; |
901 | if (global) { |
902 | rx->subbeg = truebase; |
903 | rx->subend = strend; |
904 | rx->startp[0] = s; |
905 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
906 | goto gotcha; |
907 | } |
908 | if (sawampersand) { |
909 | char *tmps; |
910 | |
911 | if (rx->subbase) |
912 | Safefree(rx->subbase); |
913 | tmps = rx->subbase = savepvn(t, strend-t); |
914 | rx->subbeg = tmps; |
915 | rx->subend = tmps + (strend-t); |
916 | tmps = rx->startp[0] = tmps + (s - t); |
917 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
918 | } |
4633a7c4 |
919 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
920 | RETPUSHYES; |
921 | |
922 | nope: |
923 | if (pm->op_pmshort) |
924 | ++BmUSEFUL(pm->op_pmshort); |
925 | |
926 | ret_no: |
927 | if (global) { |
928 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
929 | MAGIC* mg = mg_find(TARG, 'g'); |
930 | if (mg) |
931 | mg->mg_len = -1; |
932 | } |
933 | } |
4633a7c4 |
934 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
935 | if (gimme == G_ARRAY) |
936 | RETURN; |
937 | RETPUSHNO; |
938 | } |
939 | |
940 | OP * |
941 | do_readline() |
942 | { |
943 | dSP; dTARGETSTACKED; |
944 | register SV *sv; |
945 | STRLEN tmplen = 0; |
946 | STRLEN offset; |
947 | FILE *fp; |
948 | register IO *io = GvIO(last_in_gv); |
949 | register I32 type = op->op_type; |
950 | |
951 | fp = Nullfp; |
952 | if (io) { |
953 | fp = IoIFP(io); |
954 | if (!fp) { |
955 | if (IoFLAGS(io) & IOf_ARGV) { |
956 | if (IoFLAGS(io) & IOf_START) { |
957 | IoFLAGS(io) &= ~IOf_START; |
958 | IoLINES(io) = 0; |
959 | if (av_len(GvAVn(last_in_gv)) < 0) { |
960 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
961 | av_push(GvAVn(last_in_gv), tmpstr); |
962 | } |
963 | } |
964 | fp = nextargv(last_in_gv); |
965 | if (!fp) { /* Note: fp != IoIFP(io) */ |
966 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
967 | IoFLAGS(io) |= IOf_START; |
968 | } |
969 | } |
970 | else if (type == OP_GLOB) { |
971 | SV *tmpcmd = NEWSV(55, 0); |
972 | SV *tmpglob = POPs; |
973 | ENTER; |
974 | SAVEFREESV(tmpcmd); |
975 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
976 | /* since spawning off a process is a real performance hit */ |
977 | { |
978 | #include <descrip.h> |
979 | #include <lib$routines.h> |
980 | #include <nam.h> |
981 | #include <rmsdef.h> |
982 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
983 | char vmsspec[NAM$C_MAXRSS+1]; |
984 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
985 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
986 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
987 | FILE *tmpfp; |
988 | STRLEN i; |
989 | struct dsc$descriptor_s wilddsc |
990 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
991 | struct dsc$descriptor_vs rsdsc |
992 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
993 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
994 | |
995 | /* We could find out if there's an explicit dev/dir or version |
996 | by peeking into lib$find_file's internal context at |
997 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
998 | but that's unsupported, so I don't want to do it now and |
999 | have it bite someone in the future. */ |
1000 | strcat(tmpfnam,tmpnam(NULL)); |
1001 | cp = SvPV(tmpglob,i); |
1002 | for (; i; i--) { |
1003 | if (cp[i] == ';') hasver = 1; |
1004 | if (cp[i] == '.') { |
1005 | if (sts) hasver = 1; |
1006 | else sts = 1; |
1007 | } |
1008 | if (cp[i] == '/') { |
1009 | hasdir = isunix = 1; |
1010 | break; |
748a9306 |
1011 | } |
a0d0e21e |
1012 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1013 | hasdir = 1; |
1014 | break; |
1015 | } |
1016 | } |
1017 | if ((tmpfp = fopen(tmpfnam,"w+","fop=dlt")) != NULL) { |
1018 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1019 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1020 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1021 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1022 | end = rstr + (unsigned long int) *rslt; |
1023 | if (!hasver) while (*end != ';') end--; |
1024 | *(end++) = '\n'; *end = '\0'; |
1025 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1026 | if (hasdir) { |
271c2963 |
1027 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob)); |
a0d0e21e |
1028 | begin = rstr; |
1029 | } |
1030 | else { |
1031 | begin = end; |
1032 | while (*(--begin) != ']' && *begin != '>') ; |
1033 | ++begin; |
1034 | } |
1035 | ok = (fputs(begin,tmpfp) != EOF); |
1036 | } |
1037 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1038 | if (ok && sts != RMS$_NMF && |
1039 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1040 | if (!ok) { |
c07a80fd |
1041 | if (!(sts & 1)) { |
1042 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1043 | } |
1044 | fclose(tmpfp); |
a0d0e21e |
1045 | fp = NULL; |
1046 | } |
1047 | else { |
1048 | rewind(tmpfp); |
1049 | IoTYPE(io) = '<'; |
1050 | IoIFP(io) = fp = tmpfp; |
1051 | } |
1052 | } |
1053 | } |
1054 | #else /* !VMS */ |
1055 | #ifdef DOSISH |
67955e0c |
1056 | #ifdef OS2 |
1057 | sv_setpv(tmpcmd, "for a in "); |
1058 | sv_catsv(tmpcmd, tmpglob); |
1059 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1060 | #else |
a0d0e21e |
1061 | sv_setpv(tmpcmd, "perlglob "); |
1062 | sv_catsv(tmpcmd, tmpglob); |
1063 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1064 | #endif /* !OS2 */ |
1065 | #else /* !DOSISH */ |
1066 | #if defined(CSH) |
a0d0e21e |
1067 | sv_setpvn(tmpcmd, cshname, cshlen); |
1068 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1069 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1070 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1071 | #else |
1072 | sv_setpv(tmpcmd, "echo "); |
1073 | sv_catsv(tmpcmd, tmpglob); |
1074 | #if 'z' - 'a' == 25 |
1075 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1076 | #else |
1077 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1078 | #endif |
1079 | #endif /* !CSH */ |
67955e0c |
1080 | #endif /* !DOSISH */ |
c07a80fd |
1081 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1082 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1083 | fp = IoIFP(io); |
1084 | #endif /* !VMS */ |
1085 | LEAVE; |
1086 | } |
1087 | } |
1088 | else if (type == OP_GLOB) |
1089 | SP--; |
1090 | } |
1091 | if (!fp) { |
4633a7c4 |
1092 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1093 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
1094 | if (GIMME == G_SCALAR) { |
1095 | (void)SvOK_off(TARG); |
1096 | PUSHTARG; |
1097 | } |
1098 | RETURN; |
1099 | } |
1100 | if (GIMME == G_ARRAY) { |
1101 | sv = sv_2mortal(NEWSV(57, 80)); |
1102 | offset = 0; |
1103 | } |
1104 | else { |
1105 | sv = TARG; |
1106 | (void)SvUPGRADE(sv, SVt_PV); |
1107 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1108 | if (!tmplen) |
1109 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1110 | if (type == OP_RCATLINE) |
1111 | offset = SvCUR(sv); |
1112 | else |
1113 | offset = 0; |
1114 | } |
1115 | for (;;) { |
1116 | if (!sv_gets(sv, fp, offset)) { |
1117 | clearerr(fp); |
1118 | if (IoFLAGS(io) & IOf_ARGV) { |
1119 | fp = nextargv(last_in_gv); |
1120 | if (fp) |
1121 | continue; |
1122 | (void)do_close(last_in_gv, FALSE); |
1123 | IoFLAGS(io) |= IOf_START; |
1124 | } |
1125 | else if (type == OP_GLOB) { |
1126 | (void)do_close(last_in_gv, FALSE); |
1127 | } |
1128 | if (GIMME == G_SCALAR) { |
1129 | (void)SvOK_off(TARG); |
1130 | PUSHTARG; |
1131 | } |
1132 | RETURN; |
1133 | } |
1134 | IoLINES(io)++; |
1135 | XPUSHs(sv); |
1136 | if (tainting) { |
1137 | tainted = TRUE; |
1138 | SvTAINT(sv); /* Anything from the outside world...*/ |
1139 | } |
1140 | if (type == OP_GLOB) { |
1141 | char *tmps; |
1142 | |
c07a80fd |
1143 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1144 | tmps = SvEND(sv) - 1; |
1145 | if (*tmps == *SvPVX(rs)) { |
1146 | *tmps = '\0'; |
1147 | SvCUR(sv)--; |
1148 | } |
1149 | } |
a0d0e21e |
1150 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1151 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1152 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1153 | break; |
1154 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1155 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1156 | continue; |
1157 | } |
1158 | } |
1159 | if (GIMME == G_ARRAY) { |
1160 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1161 | SvLEN_set(sv, SvCUR(sv)+1); |
1162 | Renew(SvPVX(sv), SvLEN(sv), char); |
1163 | } |
1164 | sv = sv_2mortal(NEWSV(58, 80)); |
1165 | continue; |
1166 | } |
1167 | else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
1168 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1169 | if (SvCUR(sv) < 60) |
1170 | SvLEN_set(sv, 80); |
1171 | else |
1172 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1173 | Renew(SvPVX(sv), SvLEN(sv), char); |
1174 | } |
1175 | RETURN; |
1176 | } |
1177 | } |
1178 | |
1179 | PP(pp_enter) |
1180 | { |
1181 | dSP; |
1182 | register CONTEXT *cx; |
1183 | I32 gimme; |
1184 | |
1185 | /* |
1186 | * We don't just use the GIMME macro here because it assumes there's |
1187 | * already a context, which ain't necessarily so at initial startup. |
1188 | */ |
1189 | |
1190 | if (op->op_flags & OPf_KNOW) |
1191 | gimme = op->op_flags & OPf_LIST; |
1192 | else if (cxstack_ix >= 0) |
1193 | gimme = cxstack[cxstack_ix].blk_gimme; |
1194 | else |
1195 | gimme = G_SCALAR; |
1196 | |
1197 | ENTER; |
1198 | |
1199 | SAVETMPS; |
1200 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1201 | |
1202 | RETURN; |
1203 | } |
1204 | |
1205 | PP(pp_helem) |
1206 | { |
1207 | dSP; |
1208 | SV** svp; |
1209 | SV *keysv = POPs; |
1210 | STRLEN keylen; |
1211 | char *key = SvPV(keysv, keylen); |
1212 | HV *hv = (HV*)POPs; |
1213 | I32 lval = op->op_flags & OPf_MOD; |
1214 | |
1215 | if (SvTYPE(hv) != SVt_PVHV) |
1216 | RETPUSHUNDEF; |
1217 | svp = hv_fetch(hv, key, keylen, lval); |
1218 | if (lval) { |
1219 | if (!svp || *svp == &sv_undef) |
1220 | DIE(no_helem, key); |
1221 | if (op->op_private & OPpLVAL_INTRO) |
1222 | save_svref(svp); |
02a9e968 |
1223 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
1224 | provide_ref(op, *svp); |
a0d0e21e |
1225 | } |
1226 | PUSHs(svp ? *svp : &sv_undef); |
1227 | RETURN; |
1228 | } |
1229 | |
1230 | PP(pp_leave) |
1231 | { |
1232 | dSP; |
1233 | register CONTEXT *cx; |
1234 | register SV **mark; |
1235 | SV **newsp; |
1236 | PMOP *newpm; |
1237 | I32 gimme; |
1238 | |
1239 | if (op->op_flags & OPf_SPECIAL) { |
1240 | cx = &cxstack[cxstack_ix]; |
1241 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1242 | } |
1243 | |
1244 | POPBLOCK(cx,newpm); |
1245 | |
1246 | if (op->op_flags & OPf_KNOW) |
1247 | gimme = op->op_flags & OPf_LIST; |
1248 | else if (cxstack_ix >= 0) |
1249 | gimme = cxstack[cxstack_ix].blk_gimme; |
1250 | else |
1251 | gimme = G_SCALAR; |
1252 | |
1253 | if (gimme == G_SCALAR) { |
1254 | if (op->op_private & OPpLEAVE_VOID) |
1255 | SP = newsp; |
1256 | else { |
1257 | MARK = newsp + 1; |
1258 | if (MARK <= SP) |
1259 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1260 | *MARK = TOPs; |
1261 | else |
1262 | *MARK = sv_mortalcopy(TOPs); |
1263 | else { |
1264 | MEXTEND(mark,0); |
1265 | *MARK = &sv_undef; |
1266 | } |
1267 | SP = MARK; |
1268 | } |
1269 | } |
1270 | else { |
1271 | for (mark = newsp + 1; mark <= SP; mark++) |
1272 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
1273 | *mark = sv_mortalcopy(*mark); |
1274 | /* in case LEAVE wipes old return values */ |
1275 | } |
1276 | curpm = newpm; /* Don't pop $1 et al till now */ |
1277 | |
1278 | LEAVE; |
1279 | |
1280 | RETURN; |
1281 | } |
1282 | |
1283 | PP(pp_iter) |
1284 | { |
1285 | dSP; |
1286 | register CONTEXT *cx; |
1287 | SV *sv; |
4633a7c4 |
1288 | AV* av; |
a0d0e21e |
1289 | |
1290 | EXTEND(sp, 1); |
1291 | cx = &cxstack[cxstack_ix]; |
1292 | if (cx->cx_type != CXt_LOOP) |
1293 | DIE("panic: pp_iter"); |
4633a7c4 |
1294 | av = cx->blk_loop.iterary; |
67955e0c |
1295 | if (av == curstack && cx->blk_loop.iterix >= cx->blk_oldsp) |
4633a7c4 |
1296 | RETPUSHNO; |
a0d0e21e |
1297 | |
4633a7c4 |
1298 | if (cx->blk_loop.iterix >= AvFILL(av)) |
a0d0e21e |
1299 | RETPUSHNO; |
1300 | |
4633a7c4 |
1301 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) { |
a0d0e21e |
1302 | SvTEMP_off(sv); |
1303 | *cx->blk_loop.itervar = sv; |
1304 | } |
1305 | else |
1306 | *cx->blk_loop.itervar = &sv_undef; |
1307 | |
1308 | RETPUSHYES; |
1309 | } |
1310 | |
1311 | PP(pp_subst) |
1312 | { |
1313 | dSP; dTARG; |
1314 | register PMOP *pm = cPMOP; |
1315 | PMOP *rpm = pm; |
1316 | register SV *dstr; |
1317 | register char *s; |
1318 | char *strend; |
1319 | register char *m; |
1320 | char *c; |
1321 | register char *d; |
1322 | STRLEN clen; |
1323 | I32 iters = 0; |
1324 | I32 maxiters; |
1325 | register I32 i; |
1326 | bool once; |
1327 | char *orig; |
1328 | I32 safebase; |
1329 | register REGEXP *rx = pm->op_pmregexp; |
1330 | STRLEN len; |
1331 | int force_on_match = 0; |
4633a7c4 |
1332 | I32 oldsave = savestack_ix; |
a0d0e21e |
1333 | |
1334 | if (pm->op_pmflags & PMf_CONST) /* known replacement string? */ |
1335 | dstr = POPs; |
1336 | if (op->op_flags & OPf_STACKED) |
1337 | TARG = POPs; |
1338 | else { |
1339 | TARG = GvSV(defgv); |
1340 | EXTEND(SP,1); |
1341 | } |
1342 | s = SvPV(TARG, len); |
8e07c86e |
1343 | if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV)) |
a0d0e21e |
1344 | force_on_match = 1; |
1345 | |
1346 | force_it: |
1347 | if (!pm || !s) |
1348 | DIE("panic: do_subst"); |
1349 | |
1350 | strend = s + len; |
1351 | maxiters = (strend - s) + 10; |
1352 | |
1353 | if (!rx->prelen && curpm) { |
1354 | pm = curpm; |
1355 | rx = pm->op_pmregexp; |
1356 | } |
1357 | safebase = ((!rx || !rx->nparens) && !sawampersand); |
1358 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1359 | SAVEINT(multiline); |
1360 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1361 | } |
1362 | orig = m = s; |
1363 | if (pm->op_pmshort) { |
1364 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1365 | if (SvSCREAM(TARG)) { |
1366 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1367 | goto nope; |
1368 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1369 | goto nope; |
1370 | } |
1371 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1372 | pm->op_pmshort))) |
1373 | goto nope; |
1374 | if (s && rx->regback >= 0) { |
1375 | ++BmUSEFUL(pm->op_pmshort); |
1376 | s -= rx->regback; |
1377 | if (s < m) |
1378 | s = m; |
1379 | } |
1380 | else |
1381 | s = m; |
1382 | } |
1383 | else if (!multiline) { |
1384 | if (*SvPVX(pm->op_pmshort) != *s || |
1385 | bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) { |
1386 | if (pm->op_pmflags & PMf_FOLD) { |
1387 | if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) ) |
1388 | goto nope; |
1389 | } |
1390 | else |
1391 | goto nope; |
1392 | } |
1393 | } |
1394 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1395 | SvREFCNT_dec(pm->op_pmshort); |
1396 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1397 | } |
1398 | } |
1399 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
1400 | if (rpm->op_pmflags & PMf_CONST) { /* known replacement string? */ |
1401 | c = SvPV(dstr, clen); |
1402 | if (clen <= rx->minlen) { |
1403 | /* can do inplace substitution */ |
e50aee73 |
1404 | if (pregexec(rx, s, strend, orig, 0, |
a0d0e21e |
1405 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1406 | if (force_on_match) { |
1407 | force_on_match = 0; |
1408 | s = SvPV_force(TARG, len); |
1409 | goto force_it; |
1410 | } |
1411 | if (rx->subbase) /* oops, no we can't */ |
1412 | goto long_way; |
1413 | d = s; |
1414 | curpm = pm; |
1415 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1416 | if (once) { |
1417 | m = rx->startp[0]; |
1418 | d = rx->endp[0]; |
1419 | s = orig; |
1420 | if (m - s > strend - d) { /* faster to shorten from end */ |
1421 | if (clen) { |
1422 | Copy(c, m, clen, char); |
1423 | m += clen; |
1424 | } |
1425 | i = strend - d; |
1426 | if (i > 0) { |
1427 | Move(d, m, i, char); |
1428 | m += i; |
1429 | } |
1430 | *m = '\0'; |
1431 | SvCUR_set(TARG, m - s); |
1432 | (void)SvPOK_only(TARG); |
1433 | SvSETMAGIC(TARG); |
1434 | PUSHs(&sv_yes); |
4633a7c4 |
1435 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1436 | RETURN; |
1437 | } |
1438 | /*SUPPRESS 560*/ |
1439 | else if (i = m - s) { /* faster from front */ |
1440 | d -= clen; |
1441 | m = d; |
1442 | sv_chop(TARG, d-i); |
1443 | s += i; |
1444 | while (i--) |
1445 | *--d = *--s; |
1446 | if (clen) |
1447 | Copy(c, m, clen, char); |
1448 | (void)SvPOK_only(TARG); |
1449 | SvSETMAGIC(TARG); |
1450 | PUSHs(&sv_yes); |
4633a7c4 |
1451 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1452 | RETURN; |
1453 | } |
1454 | else if (clen) { |
1455 | d -= clen; |
1456 | sv_chop(TARG, d); |
1457 | Copy(c, d, clen, char); |
1458 | (void)SvPOK_only(TARG); |
1459 | SvSETMAGIC(TARG); |
1460 | PUSHs(&sv_yes); |
4633a7c4 |
1461 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1462 | RETURN; |
1463 | } |
1464 | else { |
1465 | sv_chop(TARG, d); |
1466 | (void)SvPOK_only(TARG); |
1467 | SvSETMAGIC(TARG); |
1468 | PUSHs(&sv_yes); |
4633a7c4 |
1469 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1470 | RETURN; |
1471 | } |
1472 | /* NOTREACHED */ |
1473 | } |
1474 | do { |
1475 | if (iters++ > maxiters) |
1476 | DIE("Substitution loop"); |
1477 | m = rx->startp[0]; |
1478 | /*SUPPRESS 560*/ |
1479 | if (i = m - s) { |
1480 | if (s != d) |
1481 | Move(s, d, i, char); |
1482 | d += i; |
1483 | } |
1484 | if (clen) { |
1485 | Copy(c, d, clen, char); |
1486 | d += clen; |
1487 | } |
1488 | s = rx->endp[0]; |
e50aee73 |
1489 | } while (pregexec(rx, s, strend, orig, s == m, |
a0d0e21e |
1490 | Nullsv, TRUE)); /* (don't match same null twice) */ |
1491 | if (s != d) { |
1492 | i = strend - s; |
1493 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1494 | Move(s, d, i+1, char); /* include the Null */ |
1495 | } |
1496 | (void)SvPOK_only(TARG); |
1497 | SvSETMAGIC(TARG); |
1498 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1499 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1500 | RETURN; |
1501 | } |
1502 | PUSHs(&sv_no); |
4633a7c4 |
1503 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1504 | RETURN; |
1505 | } |
1506 | } |
1507 | else |
1508 | c = Nullch; |
e50aee73 |
1509 | if (pregexec(rx, s, strend, orig, 0, |
a0d0e21e |
1510 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1511 | long_way: |
1512 | if (force_on_match) { |
1513 | force_on_match = 0; |
1514 | s = SvPV_force(TARG, len); |
1515 | goto force_it; |
1516 | } |
1517 | dstr = NEWSV(25, sv_len(TARG)); |
1518 | sv_setpvn(dstr, m, s-m); |
1519 | curpm = pm; |
1520 | if (!c) { |
1521 | register CONTEXT *cx; |
1522 | PUSHSUBST(cx); |
1523 | RETURNOP(cPMOP->op_pmreplroot); |
1524 | } |
1525 | do { |
1526 | if (iters++ > maxiters) |
1527 | DIE("Substitution loop"); |
1528 | if (rx->subbase && rx->subbase != orig) { |
1529 | m = s; |
1530 | s = orig; |
1531 | orig = rx->subbase; |
1532 | s = orig + (m - s); |
1533 | strend = s + (strend - m); |
1534 | } |
1535 | m = rx->startp[0]; |
1536 | sv_catpvn(dstr, s, m-s); |
1537 | s = rx->endp[0]; |
1538 | if (clen) |
1539 | sv_catpvn(dstr, c, clen); |
1540 | if (once) |
1541 | break; |
e50aee73 |
1542 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, |
a0d0e21e |
1543 | safebase)); |
1544 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1545 | |
4633a7c4 |
1546 | (void)SvOOK_off(TARG); |
cb0b1708 |
1547 | Safefree(SvPVX(TARG)); |
748a9306 |
1548 | SvPVX(TARG) = SvPVX(dstr); |
1549 | SvCUR_set(TARG, SvCUR(dstr)); |
1550 | SvLEN_set(TARG, SvLEN(dstr)); |
1551 | SvPVX(dstr) = 0; |
1552 | sv_free(dstr); |
1553 | |
a0d0e21e |
1554 | (void)SvPOK_only(TARG); |
1555 | SvSETMAGIC(TARG); |
1556 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1557 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1558 | RETURN; |
1559 | } |
1560 | PUSHs(&sv_no); |
4633a7c4 |
1561 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1562 | RETURN; |
1563 | |
1564 | nope: |
1565 | ++BmUSEFUL(pm->op_pmshort); |
1566 | PUSHs(&sv_no); |
4633a7c4 |
1567 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1568 | RETURN; |
1569 | } |
1570 | |
1571 | PP(pp_grepwhile) |
1572 | { |
1573 | dSP; |
1574 | |
1575 | if (SvTRUEx(POPs)) |
1576 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1577 | ++*markstack_ptr; |
1578 | LEAVE; /* exit inner scope */ |
1579 | |
1580 | /* All done yet? */ |
1581 | if (stack_base + *markstack_ptr > sp) { |
1582 | I32 items; |
1583 | |
1584 | LEAVE; /* exit outer scope */ |
1585 | (void)POPMARK; /* pop src */ |
1586 | items = --*markstack_ptr - markstack_ptr[-1]; |
1587 | (void)POPMARK; /* pop dst */ |
1588 | SP = stack_base + POPMARK; /* pop original mark */ |
1589 | if (GIMME != G_ARRAY) { |
1590 | dTARGET; |
1591 | XPUSHi(items); |
1592 | RETURN; |
1593 | } |
1594 | SP += items; |
1595 | RETURN; |
1596 | } |
1597 | else { |
1598 | SV *src; |
1599 | |
1600 | ENTER; /* enter inner scope */ |
1601 | SAVESPTR(curpm); |
1602 | |
1603 | src = stack_base[*markstack_ptr]; |
1604 | SvTEMP_off(src); |
1605 | GvSV(defgv) = src; |
1606 | |
1607 | RETURNOP(cLOGOP->op_other); |
1608 | } |
1609 | } |
1610 | |
1611 | PP(pp_leavesub) |
1612 | { |
1613 | dSP; |
1614 | SV **mark; |
1615 | SV **newsp; |
1616 | PMOP *newpm; |
1617 | I32 gimme; |
1618 | register CONTEXT *cx; |
1619 | |
1620 | POPBLOCK(cx,newpm); |
1621 | POPSUB(cx); |
1622 | |
1623 | if (gimme == G_SCALAR) { |
1624 | MARK = newsp + 1; |
1625 | if (MARK <= SP) |
1626 | if (SvFLAGS(TOPs) & SVs_TEMP) |
1627 | *MARK = TOPs; |
1628 | else |
1629 | *MARK = sv_mortalcopy(TOPs); |
1630 | else { |
1631 | MEXTEND(mark,0); |
1632 | *MARK = &sv_undef; |
1633 | } |
1634 | SP = MARK; |
1635 | } |
1636 | else { |
1637 | for (mark = newsp + 1; mark <= SP; mark++) |
1638 | if (!(SvFLAGS(*mark) & SVs_TEMP)) |
1639 | *mark = sv_mortalcopy(*mark); |
1640 | /* in case LEAVE wipes old return values */ |
1641 | } |
1642 | |
1643 | if (cx->blk_sub.hasargs) { /* You don't exist; go away. */ |
1644 | AV* av = cx->blk_sub.argarray; |
1645 | |
1646 | av_clear(av); |
1647 | AvREAL_off(av); |
1648 | } |
1649 | curpm = newpm; /* Don't pop $1 et al till now */ |
1650 | |
1651 | LEAVE; |
1652 | PUTBACK; |
1653 | return pop_return(); |
1654 | } |
1655 | |
1656 | PP(pp_entersub) |
1657 | { |
1658 | dSP; dPOPss; |
1659 | GV *gv; |
1660 | HV *stash; |
1661 | register CV *cv; |
1662 | register CONTEXT *cx; |
5d94fbed |
1663 | I32 gimme; |
67955e0c |
1664 | I32 hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1665 | |
1666 | if (!sv) |
1667 | DIE("Not a CODE reference"); |
1668 | switch (SvTYPE(sv)) { |
1669 | default: |
1670 | if (!SvROK(sv)) { |
748a9306 |
1671 | char *sym; |
1672 | |
a0d0e21e |
1673 | if (sv == &sv_yes) /* unfound import, ignore */ |
1674 | RETURN; |
1675 | if (!SvOK(sv)) |
1676 | DIE(no_usym, "a subroutine"); |
748a9306 |
1677 | sym = SvPV(sv,na); |
a0d0e21e |
1678 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1679 | DIE(no_symref, sym, "a subroutine"); |
1680 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1681 | break; |
1682 | } |
1683 | cv = (CV*)SvRV(sv); |
1684 | if (SvTYPE(cv) == SVt_PVCV) |
1685 | break; |
1686 | /* FALL THROUGH */ |
1687 | case SVt_PVHV: |
1688 | case SVt_PVAV: |
1689 | DIE("Not a CODE reference"); |
1690 | case SVt_PVCV: |
1691 | cv = (CV*)sv; |
1692 | break; |
1693 | case SVt_PVGV: |
1694 | if (!(cv = GvCV((GV*)sv))) |
1695 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1696 | break; |
1697 | } |
1698 | |
1699 | ENTER; |
1700 | SAVETMPS; |
1701 | |
1702 | retry: |
1703 | if (!cv) |
1704 | DIE("Not a CODE reference"); |
1705 | |
1706 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1707 | if (gv = CvGV(cv)) { |
4633a7c4 |
1708 | SV *tmpstr; |
a0d0e21e |
1709 | GV *ngv; |
4633a7c4 |
1710 | if (SvFAKE(cv) && GvCV(gv) != cv) { /* autoloaded stub? */ |
1711 | cv = GvCV(gv); |
1712 | if (SvTYPE(sv) == SVt_PVGV) { |
1713 | SvREFCNT_dec(GvCV((GV*)sv)); |
1714 | GvCV((GV*)sv) = (CV*)SvREFCNT_inc((SV*)cv); |
1715 | } |
1716 | goto retry; |
1717 | } |
1718 | tmpstr = sv_newmortal(); |
a0d0e21e |
1719 | gv_efullname(tmpstr, gv); |
1720 | ngv = gv_fetchmethod(GvESTASH(gv), "AUTOLOAD"); |
1721 | if (ngv && ngv != gv && (cv = GvCV(ngv))) { /* One more chance... */ |
1722 | gv = ngv; |
1723 | sv_setsv(GvSV(CvGV(cv)), tmpstr); /* Set CV's $AUTOLOAD */ |
c07a80fd |
1724 | if (tainting) |
1725 | sv_unmagic(GvSV(CvGV(cv)), 't'); |
a0d0e21e |
1726 | goto retry; |
1727 | } |
1728 | else |
1729 | DIE("Undefined subroutine &%s called",SvPVX(tmpstr)); |
1730 | } |
1731 | DIE("Undefined subroutine called"); |
1732 | } |
1733 | |
4633a7c4 |
1734 | gimme = GIMME; |
67955e0c |
1735 | if ((op->op_private & OPpENTERSUB_DB)) { |
a0d0e21e |
1736 | sv = GvSV(DBsub); |
1737 | save_item(sv); |
67955e0c |
1738 | gv = CvGV(cv); |
1739 | if ( CvFLAGS(cv) & (CVf_ANON | CVf_CLONED) |
1740 | || strEQ(GvNAME(gv), "END") ) { |
a5f75d66 |
1741 | /* GV is potentially non-unique */ |
748a9306 |
1742 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1743 | } |
748a9306 |
1744 | else { |
748a9306 |
1745 | gv_efullname(sv,gv); |
1746 | } |
a0d0e21e |
1747 | cv = GvCV(DBsub); |
67955e0c |
1748 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1749 | if (!cv) |
1750 | DIE("No DBsub routine"); |
1751 | } |
1752 | |
1753 | if (CvXSUB(cv)) { |
1754 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1755 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1756 | dMARK; |
1757 | register I32 items = SP - MARK; |
67955e0c |
1758 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1759 | while (sp > mark) { |
1760 | sp[1] = sp[0]; |
1761 | sp--; |
1762 | } |
1763 | stack_sp = mark + 1; |
ecfc5424 |
1764 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1765 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1766 | MARK - stack_base + 1, |
1767 | items); |
a0d0e21e |
1768 | stack_sp = stack_base + items; |
1769 | } |
1770 | else { |
748a9306 |
1771 | I32 markix = TOPMARK; |
1772 | |
a0d0e21e |
1773 | PUTBACK; |
67955e0c |
1774 | |
1775 | if (!hasargs) { |
1776 | /* Need to copy @_ to stack. Alternative may be to |
1777 | * switch stack to @_, and copy return values |
1778 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
1779 | AV* av = GvAV(defgv); |
1780 | I32 items = AvFILL(av) + 1; |
1781 | |
1782 | if (items) { |
1783 | /* Mark is at the end of the stack. */ |
1784 | EXTEND(sp, items); |
1785 | Copy(AvARRAY(av), sp + 1, items, SV*); |
1786 | sp += items; |
1787 | PUTBACK ; |
1788 | } |
1789 | } |
1790 | if (curcopdb) { /* We assume that the first |
1791 | XSUB in &DB::sub is the |
1792 | called one. */ |
1793 | SAVESPTR(curcop); |
1794 | curcop = curcopdb; |
1795 | curcopdb = NULL; |
1796 | } |
1797 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
1798 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
1799 | |
1800 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
1801 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
1802 | if (markix > stack_sp - stack_base) |
1803 | *(stack_base + markix) = &sv_undef; |
1804 | else |
1805 | *(stack_base + markix) = *stack_sp; |
1806 | stack_sp = stack_base + markix; |
1807 | } |
a0d0e21e |
1808 | } |
1809 | LEAVE; |
1810 | return NORMAL; |
1811 | } |
1812 | else { |
1813 | dMARK; |
1814 | register I32 items = SP - MARK; |
a0d0e21e |
1815 | AV* padlist = CvPADLIST(cv); |
1816 | SV** svp = AvARRAY(padlist); |
1817 | push_return(op->op_next); |
1818 | PUSHBLOCK(cx, CXt_SUB, MARK); |
1819 | PUSHSUB(cx); |
1820 | CvDEPTH(cv)++; |
1821 | if (CvDEPTH(cv) < 2) |
1822 | (void)SvREFCNT_inc(cv); |
1823 | else { /* save temporaries on recursion? */ |
1824 | if (CvDEPTH(cv) == 100 && dowarn) |
1825 | warn("Deep recursion on subroutine \"%s\"",GvENAME(CvGV(cv))); |
1826 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1827 | AV *av; |
1828 | AV *newpad = newAV(); |
4aa0a1f7 |
1829 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1830 | I32 ix = AvFILL((AV*)svp[1]); |
1831 | svp = AvARRAY(svp[0]); |
748a9306 |
1832 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1833 | if (svp[ix] != &sv_undef) { |
748a9306 |
1834 | char *name = SvPVX(svp[ix]); |
1835 | if (SvFLAGS(svp[ix]) & SVf_FAKE) { /* outer lexical? */ |
1836 | av_store(newpad, ix, |
4aa0a1f7 |
1837 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 |
1838 | } |
1839 | else { /* our own lexical */ |
1840 | if (*name == '@') |
1841 | av_store(newpad, ix, sv = (SV*)newAV()); |
1842 | else if (*name == '%') |
1843 | av_store(newpad, ix, sv = (SV*)newHV()); |
1844 | else |
1845 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1846 | SvPADMY_on(sv); |
1847 | } |
a0d0e21e |
1848 | } |
1849 | else { |
748a9306 |
1850 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1851 | SvPADTMP_on(sv); |
1852 | } |
1853 | } |
1854 | av = newAV(); /* will be @_ */ |
1855 | av_extend(av, 0); |
1856 | av_store(newpad, 0, (SV*)av); |
1857 | AvFLAGS(av) = AVf_REIFY; |
1858 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1859 | AvFILL(padlist) = CvDEPTH(cv); |
1860 | svp = AvARRAY(padlist); |
1861 | } |
1862 | } |
1863 | SAVESPTR(curpad); |
1864 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1865 | if (hasargs) { |
1866 | AV* av = (AV*)curpad[0]; |
1867 | SV** ary; |
1868 | |
1869 | if (AvREAL(av)) { |
1870 | av_clear(av); |
1871 | AvREAL_off(av); |
1872 | } |
1873 | cx->blk_sub.savearray = GvAV(defgv); |
1874 | cx->blk_sub.argarray = av; |
1875 | GvAV(defgv) = cx->blk_sub.argarray; |
1876 | ++MARK; |
1877 | |
1878 | if (items > AvMAX(av) + 1) { |
1879 | ary = AvALLOC(av); |
1880 | if (AvARRAY(av) != ary) { |
1881 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1882 | SvPVX(av) = (char*)ary; |
1883 | } |
1884 | if (items > AvMAX(av) + 1) { |
1885 | AvMAX(av) = items - 1; |
1886 | Renew(ary,items,SV*); |
1887 | AvALLOC(av) = ary; |
1888 | SvPVX(av) = (char*)ary; |
1889 | } |
1890 | } |
1891 | Copy(MARK,AvARRAY(av),items,SV*); |
1892 | AvFILL(av) = items - 1; |
1893 | |
1894 | while (items--) { |
1895 | if (*MARK) |
1896 | SvTEMP_off(*MARK); |
1897 | MARK++; |
1898 | } |
1899 | } |
1900 | RETURNOP(CvSTART(cv)); |
1901 | } |
1902 | } |
1903 | |
1904 | PP(pp_aelem) |
1905 | { |
1906 | dSP; |
1907 | SV** svp; |
748a9306 |
1908 | I32 elem = POPi; |
a0d0e21e |
1909 | AV *av = (AV*)POPs; |
1910 | I32 lval = op->op_flags & OPf_MOD; |
1911 | |
748a9306 |
1912 | if (elem > 0) |
1913 | elem -= curcop->cop_arybase; |
a0d0e21e |
1914 | if (SvTYPE(av) != SVt_PVAV) |
1915 | RETPUSHUNDEF; |
1916 | svp = av_fetch(av, elem, lval); |
1917 | if (lval) { |
1918 | if (!svp || *svp == &sv_undef) |
1919 | DIE(no_aelem, elem); |
1920 | if (op->op_private & OPpLVAL_INTRO) |
1921 | save_svref(svp); |
02a9e968 |
1922 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
1923 | provide_ref(op, *svp); |
a0d0e21e |
1924 | } |
1925 | PUSHs(svp ? *svp : &sv_undef); |
1926 | RETURN; |
1927 | } |
1928 | |
02a9e968 |
1929 | void |
1930 | provide_ref(op, sv) |
1931 | OP* op; |
1932 | SV* sv; |
1933 | { |
1934 | if (SvGMAGICAL(sv)) |
1935 | mg_get(sv); |
1936 | if (!SvOK(sv)) { |
1937 | if (SvREADONLY(sv)) |
1938 | croak(no_modify); |
1939 | (void)SvUPGRADE(sv, SVt_RV); |
1940 | SvRV(sv) = (op->op_private & OPpDEREF_HV ? |
1941 | (SV*)newHV() : (SV*)newAV()); |
1942 | SvROK_on(sv); |
1943 | SvSETMAGIC(sv); |
1944 | } |
1945 | } |
1946 | |
a0d0e21e |
1947 | PP(pp_method) |
1948 | { |
1949 | dSP; |
1950 | SV* sv; |
1951 | SV* ob; |
1952 | GV* gv; |
1953 | SV* nm; |
1954 | |
1955 | nm = TOPs; |
1956 | sv = *(stack_base + TOPMARK + 1); |
1957 | |
1958 | gv = 0; |
16d20bd9 |
1959 | if (SvGMAGICAL(sv)) |
1960 | mg_get(sv); |
a0d0e21e |
1961 | if (SvROK(sv)) |
16d20bd9 |
1962 | ob = (SV*)SvRV(sv); |
a0d0e21e |
1963 | else { |
1964 | GV* iogv; |
1965 | char* packname = 0; |
67955e0c |
1966 | STRLEN packlen; |
a0d0e21e |
1967 | |
1968 | if (!SvOK(sv) || |
67955e0c |
1969 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
1970 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
1971 | !(ob=(SV*)GvIO(iogv))) |
1972 | { |
1973 | char *name = SvPV(nm, na); |
1974 | HV *stash; |
1975 | if (!packname || !isALPHA(*packname)) |
1976 | DIE("Can't call method \"%s\" without a package or object reference", name); |
67955e0c |
1977 | if (!(stash = gv_stashpvn(packname, packlen, FALSE))) { |
1978 | if (gv_stashpvn("UNIVERSAL", 9, FALSE)) |
1979 | stash = gv_stashpvn(packname, packlen, TRUE); |
a0d0e21e |
1980 | else |
1981 | DIE("Can't call method \"%s\" in empty package \"%s\"", |
1982 | name, packname); |
1983 | } |
1984 | gv = gv_fetchmethod(stash,name); |
1985 | if (!gv) |
1986 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
1987 | name, packname); |
67955e0c |
1988 | SETs((SV*)gv); |
a0d0e21e |
1989 | RETURN; |
1990 | } |
67955e0c |
1991 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
1992 | } |
1993 | |
1994 | if (!ob || !SvOBJECT(ob)) { |
1995 | char *name = SvPV(nm, na); |
1996 | DIE("Can't call method \"%s\" on unblessed reference", name); |
1997 | } |
1998 | |
1999 | if (!gv) { /* nothing cached */ |
2000 | char *name = SvPV(nm, na); |
2001 | gv = gv_fetchmethod(SvSTASH(ob),name); |
2002 | if (!gv) |
2003 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2004 | name, HvNAME(SvSTASH(ob))); |
2005 | } |
2006 | |
67955e0c |
2007 | SETs((SV*)gv); |
a0d0e21e |
2008 | RETURN; |
2009 | } |
2010 | |