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