Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * 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 | |
11343788 |
23 | #ifdef USE_THREADS |
24 | static void |
25 | unset_cvowner(cvarg) |
26 | void *cvarg; |
27 | { |
28 | register CV* cv = (CV *) cvarg; |
29 | #ifdef DEBUGGING |
30 | dTHR; |
31 | #endif /* DEBUGGING */ |
32 | |
33 | DEBUG_L((fprintf(stderr, "0x%lx unsetting CvOWNER of 0x%lx:%s\n", |
34 | (unsigned long)thr, (unsigned long)cv, SvPEEK((SV*)cv)))); |
35 | MUTEX_LOCK(CvMUTEXP(cv)); |
9ed32d99 |
36 | /* assert(CvDEPTH(cv) == 0); */ |
11343788 |
37 | assert(thr == CvOWNER(cv)); |
38 | CvOWNER(cv) = 0; |
39 | if (CvCONDP(cv)) |
40 | COND_SIGNAL(CvCONDP(cv)); /* next please */ |
41 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
42 | SvREFCNT_dec(cv); |
43 | } |
11343788 |
44 | #endif /* USE_THREADS */ |
45 | |
a0d0e21e |
46 | PP(pp_const) |
47 | { |
48 | dSP; |
49 | XPUSHs(cSVOP->op_sv); |
50 | RETURN; |
51 | } |
52 | |
53 | PP(pp_nextstate) |
54 | { |
55 | curcop = (COP*)op; |
56 | TAINT_NOT; /* Each statement is presumed innocent */ |
57 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
58 | FREETMPS; |
59 | return NORMAL; |
60 | } |
61 | |
62 | PP(pp_gvsv) |
63 | { |
64 | dSP; |
65 | EXTEND(sp,1); |
66 | if (op->op_private & OPpLVAL_INTRO) |
67 | PUSHs(save_scalar(cGVOP->op_gv)); |
68 | else |
69 | PUSHs(GvSV(cGVOP->op_gv)); |
70 | RETURN; |
71 | } |
72 | |
73 | PP(pp_null) |
74 | { |
75 | return NORMAL; |
76 | } |
77 | |
78 | PP(pp_pushmark) |
79 | { |
80 | PUSHMARK(stack_sp); |
81 | return NORMAL; |
82 | } |
83 | |
84 | PP(pp_stringify) |
85 | { |
86 | dSP; dTARGET; |
87 | STRLEN len; |
88 | char *s; |
89 | s = SvPV(TOPs,len); |
90 | sv_setpvn(TARG,s,len); |
91 | SETTARG; |
92 | RETURN; |
93 | } |
94 | |
95 | PP(pp_gv) |
96 | { |
97 | dSP; |
98 | XPUSHs((SV*)cGVOP->op_gv); |
99 | RETURN; |
100 | } |
101 | |
c07a80fd |
102 | PP(pp_gelem) |
103 | { |
104 | GV *gv; |
105 | SV *sv; |
106 | SV *ref; |
107 | char *elem; |
108 | dSP; |
109 | |
110 | sv = POPs; |
111 | elem = SvPV(sv, na); |
112 | gv = (GV*)POPs; |
113 | ref = Nullsv; |
114 | sv = Nullsv; |
115 | switch (elem ? *elem : '\0') |
116 | { |
117 | case 'A': |
118 | if (strEQ(elem, "ARRAY")) |
119 | ref = (SV*)GvAV(gv); |
120 | break; |
121 | case 'C': |
122 | if (strEQ(elem, "CODE")) |
8ebc5c01 |
123 | ref = (SV*)GvCVu(gv); |
c07a80fd |
124 | break; |
125 | case 'F': |
36477c24 |
126 | if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */ |
c07a80fd |
127 | ref = (SV*)GvIOp(gv); |
128 | break; |
129 | case 'G': |
130 | if (strEQ(elem, "GLOB")) |
131 | ref = (SV*)gv; |
132 | break; |
133 | case 'H': |
134 | if (strEQ(elem, "HASH")) |
135 | ref = (SV*)GvHV(gv); |
136 | break; |
36477c24 |
137 | case 'I': |
138 | if (strEQ(elem, "IO")) |
139 | ref = (SV*)GvIOp(gv); |
140 | break; |
c07a80fd |
141 | case 'N': |
142 | if (strEQ(elem, "NAME")) |
143 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); |
144 | break; |
145 | case 'P': |
146 | if (strEQ(elem, "PACKAGE")) |
147 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); |
148 | break; |
149 | case 'S': |
150 | if (strEQ(elem, "SCALAR")) |
151 | ref = GvSV(gv); |
152 | break; |
153 | } |
154 | if (ref) |
155 | sv = newRV(ref); |
156 | if (sv) |
157 | sv_2mortal(sv); |
158 | else |
159 | sv = &sv_undef; |
160 | XPUSHs(sv); |
161 | RETURN; |
162 | } |
163 | |
a0d0e21e |
164 | PP(pp_and) |
165 | { |
166 | dSP; |
167 | if (!SvTRUE(TOPs)) |
168 | RETURN; |
169 | else { |
170 | --SP; |
171 | RETURNOP(cLOGOP->op_other); |
172 | } |
173 | } |
174 | |
175 | PP(pp_sassign) |
176 | { |
177 | dSP; dPOPTOPssrl; |
748a9306 |
178 | MAGIC *mg; |
179 | |
a0d0e21e |
180 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
181 | SV *temp; |
182 | temp = left; left = right; right = temp; |
183 | } |
bbce6d69 |
184 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
185 | TAINT_NOT; |
54310121 |
186 | SvSetMagicSV(right, left); |
a0d0e21e |
187 | SETs(right); |
188 | RETURN; |
189 | } |
190 | |
191 | PP(pp_cond_expr) |
192 | { |
193 | dSP; |
194 | if (SvTRUEx(POPs)) |
195 | RETURNOP(cCONDOP->op_true); |
196 | else |
197 | RETURNOP(cCONDOP->op_false); |
198 | } |
199 | |
200 | PP(pp_unstack) |
201 | { |
202 | I32 oldsave; |
203 | TAINT_NOT; /* Each statement is presumed innocent */ |
204 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
205 | FREETMPS; |
206 | oldsave = scopestack[scopestack_ix - 1]; |
207 | LEAVE_SCOPE(oldsave); |
208 | return NORMAL; |
209 | } |
210 | |
a0d0e21e |
211 | PP(pp_concat) |
212 | { |
748a9306 |
213 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
214 | { |
215 | dPOPTOPssrl; |
a0d0e21e |
216 | STRLEN len; |
217 | char *s; |
218 | if (TARG != left) { |
219 | s = SvPV(left,len); |
220 | sv_setpvn(TARG,s,len); |
221 | } |
c07a80fd |
222 | else if (SvGMAGICAL(TARG)) |
223 | mg_get(TARG); |
7a4c00b4 |
224 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
225 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
226 | s = SvPV_force(TARG, len); |
4633a7c4 |
227 | } |
a0d0e21e |
228 | s = SvPV(right,len); |
68dc0745 |
229 | if (SvOK(TARG)) |
230 | sv_catpvn(TARG,s,len); |
231 | else |
232 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
233 | SETTARG; |
234 | RETURN; |
748a9306 |
235 | } |
a0d0e21e |
236 | } |
237 | |
238 | PP(pp_padsv) |
239 | { |
240 | dSP; dTARGET; |
241 | XPUSHs(TARG); |
4633a7c4 |
242 | if (op->op_flags & OPf_MOD) { |
243 | if (op->op_private & OPpLVAL_INTRO) |
244 | SAVECLEARSV(curpad[op->op_targ]); |
5f05dabc |
245 | else if (op->op_private & OPpDEREF) |
54310121 |
246 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
4633a7c4 |
247 | } |
a0d0e21e |
248 | RETURN; |
249 | } |
250 | |
251 | PP(pp_readline) |
252 | { |
253 | last_in_gv = (GV*)(*stack_sp--); |
254 | return do_readline(); |
255 | } |
256 | |
257 | PP(pp_eq) |
258 | { |
259 | dSP; tryAMAGICbinSET(eq,0); |
260 | { |
261 | dPOPnv; |
54310121 |
262 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
263 | RETURN; |
264 | } |
265 | } |
266 | |
267 | PP(pp_preinc) |
268 | { |
269 | dSP; |
68dc0745 |
270 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a |
271 | croak(no_modify); |
55497cff |
272 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
273 | SvIVX(TOPs) != IV_MAX) |
274 | { |
748a9306 |
275 | ++SvIVX(TOPs); |
55497cff |
276 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
277 | } |
278 | else |
279 | sv_inc(TOPs); |
a0d0e21e |
280 | SvSETMAGIC(TOPs); |
281 | return NORMAL; |
282 | } |
283 | |
284 | PP(pp_or) |
285 | { |
286 | dSP; |
287 | if (SvTRUE(TOPs)) |
288 | RETURN; |
289 | else { |
290 | --SP; |
291 | RETURNOP(cLOGOP->op_other); |
292 | } |
293 | } |
294 | |
295 | PP(pp_add) |
296 | { |
297 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
298 | { |
7a4c00b4 |
299 | dPOPTOPnnrl_ul; |
a0d0e21e |
300 | SETn( left + right ); |
301 | RETURN; |
302 | } |
303 | } |
304 | |
305 | PP(pp_aelemfast) |
306 | { |
307 | dSP; |
308 | AV *av = GvAV((GV*)cSVOP->op_sv); |
309 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
310 | PUSHs(svp ? *svp : &sv_undef); |
311 | RETURN; |
312 | } |
313 | |
314 | PP(pp_join) |
315 | { |
316 | dSP; dMARK; dTARGET; |
317 | MARK++; |
318 | do_join(TARG, *MARK, MARK, SP); |
319 | SP = MARK; |
320 | SETs(TARG); |
321 | RETURN; |
322 | } |
323 | |
324 | PP(pp_pushre) |
325 | { |
326 | dSP; |
44a8e56a |
327 | #ifdef DEBUGGING |
328 | /* |
329 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
330 | * will be enough to hold an OP*. |
331 | */ |
332 | SV* sv = sv_newmortal(); |
333 | sv_upgrade(sv, SVt_PVLV); |
334 | LvTYPE(sv) = '/'; |
335 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
336 | XPUSHs(sv); |
337 | #else |
a0d0e21e |
338 | XPUSHs((SV*)op); |
44a8e56a |
339 | #endif |
a0d0e21e |
340 | RETURN; |
341 | } |
342 | |
343 | /* Oversized hot code. */ |
344 | |
345 | PP(pp_print) |
346 | { |
347 | dSP; dMARK; dORIGMARK; |
348 | GV *gv; |
349 | IO *io; |
760ac839 |
350 | register PerlIO *fp; |
236988e4 |
351 | MAGIC *mg; |
a0d0e21e |
352 | |
353 | if (op->op_flags & OPf_STACKED) |
354 | gv = (GV*)*++MARK; |
355 | else |
356 | gv = defoutgv; |
236988e4 |
357 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 |
358 | if (MARK == ORIGMARK) { |
359 | EXTEND(SP, 1); |
360 | ++MARK; |
361 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
362 | ++SP; |
363 | } |
364 | PUSHMARK(MARK - 1); |
236988e4 |
365 | *MARK = mg->mg_obj; |
68dc0745 |
366 | PUTBACK; |
236988e4 |
367 | ENTER; |
368 | perl_call_method("PRINT", G_SCALAR); |
369 | LEAVE; |
370 | SPAGAIN; |
68dc0745 |
371 | MARK = ORIGMARK + 1; |
372 | *MARK = *SP; |
373 | SP = MARK; |
236988e4 |
374 | RETURN; |
375 | } |
a0d0e21e |
376 | if (!(io = GvIO(gv))) { |
748a9306 |
377 | if (dowarn) { |
378 | SV* sv = sv_newmortal(); |
4f732624 |
379 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
380 | warn("Filehandle %s never opened", SvPV(sv,na)); |
381 | } |
382 | |
383 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
384 | goto just_say_no; |
385 | } |
386 | else if (!(fp = IoOFP(io))) { |
387 | if (dowarn) { |
748a9306 |
388 | SV* sv = sv_newmortal(); |
4f732624 |
389 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
390 | if (IoIFP(io)) |
748a9306 |
391 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
392 | else |
748a9306 |
393 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
394 | } |
748a9306 |
395 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
396 | goto just_say_no; |
397 | } |
398 | else { |
399 | MARK++; |
400 | if (ofslen) { |
401 | while (MARK <= SP) { |
402 | if (!do_print(*MARK, fp)) |
403 | break; |
404 | MARK++; |
405 | if (MARK <= SP) { |
760ac839 |
406 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
407 | MARK--; |
408 | break; |
409 | } |
410 | } |
411 | } |
412 | } |
413 | else { |
414 | while (MARK <= SP) { |
415 | if (!do_print(*MARK, fp)) |
416 | break; |
417 | MARK++; |
418 | } |
419 | } |
420 | if (MARK <= SP) |
421 | goto just_say_no; |
422 | else { |
423 | if (orslen) |
760ac839 |
424 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
425 | goto just_say_no; |
426 | |
427 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
428 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
429 | goto just_say_no; |
430 | } |
431 | } |
432 | SP = ORIGMARK; |
433 | PUSHs(&sv_yes); |
434 | RETURN; |
435 | |
436 | just_say_no: |
437 | SP = ORIGMARK; |
438 | PUSHs(&sv_undef); |
439 | RETURN; |
440 | } |
441 | |
442 | PP(pp_rv2av) |
443 | { |
444 | dSP; dPOPss; |
a0d0e21e |
445 | AV *av; |
446 | |
447 | if (SvROK(sv)) { |
448 | wasref: |
449 | av = (AV*)SvRV(sv); |
450 | if (SvTYPE(av) != SVt_PVAV) |
451 | DIE("Not an ARRAY reference"); |
452 | if (op->op_private & OPpLVAL_INTRO) |
453 | av = (AV*)save_svref((SV**)sv); |
454 | if (op->op_flags & OPf_REF) { |
455 | PUSHs((SV*)av); |
456 | RETURN; |
457 | } |
458 | } |
459 | else { |
460 | if (SvTYPE(sv) == SVt_PVAV) { |
461 | av = (AV*)sv; |
462 | if (op->op_flags & OPf_REF) { |
463 | PUSHs((SV*)av); |
464 | RETURN; |
465 | } |
466 | } |
467 | else { |
67955e0c |
468 | GV *gv; |
469 | |
a0d0e21e |
470 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
471 | char *sym; |
472 | |
a0d0e21e |
473 | if (SvGMAGICAL(sv)) { |
474 | mg_get(sv); |
475 | if (SvROK(sv)) |
476 | goto wasref; |
477 | } |
478 | if (!SvOK(sv)) { |
479 | if (op->op_flags & OPf_REF || |
480 | op->op_private & HINT_STRICT_REFS) |
481 | DIE(no_usym, "an ARRAY"); |
d83e6520 |
482 | if (dowarn) |
483 | warn(warn_uninit); |
4633a7c4 |
484 | if (GIMME == G_ARRAY) |
485 | RETURN; |
a0d0e21e |
486 | RETPUSHUNDEF; |
487 | } |
748a9306 |
488 | sym = SvPV(sv,na); |
a0d0e21e |
489 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
490 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
491 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
492 | } else { |
493 | gv = (GV*)sv; |
a0d0e21e |
494 | } |
67955e0c |
495 | av = GvAVn(gv); |
a0d0e21e |
496 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
497 | av = save_ary(gv); |
a0d0e21e |
498 | if (op->op_flags & OPf_REF) { |
499 | PUSHs((SV*)av); |
500 | RETURN; |
501 | } |
502 | } |
503 | } |
504 | |
505 | if (GIMME == G_ARRAY) { |
506 | I32 maxarg = AvFILL(av) + 1; |
507 | EXTEND(SP, maxarg); |
508 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
509 | SP += maxarg; |
510 | } |
511 | else { |
512 | dTARGET; |
513 | I32 maxarg = AvFILL(av) + 1; |
514 | PUSHi(maxarg); |
515 | } |
516 | RETURN; |
517 | } |
518 | |
519 | PP(pp_rv2hv) |
520 | { |
a0d0e21e |
521 | dSP; dTOPss; |
a0d0e21e |
522 | HV *hv; |
523 | |
524 | if (SvROK(sv)) { |
525 | wasref: |
526 | hv = (HV*)SvRV(sv); |
c750a3ec |
527 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e |
528 | DIE("Not a HASH reference"); |
529 | if (op->op_private & OPpLVAL_INTRO) |
530 | hv = (HV*)save_svref((SV**)sv); |
531 | if (op->op_flags & OPf_REF) { |
532 | SETs((SV*)hv); |
533 | RETURN; |
534 | } |
535 | } |
536 | else { |
c750a3ec |
537 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
538 | hv = (HV*)sv; |
539 | if (op->op_flags & OPf_REF) { |
540 | SETs((SV*)hv); |
541 | RETURN; |
542 | } |
543 | } |
544 | else { |
67955e0c |
545 | GV *gv; |
546 | |
a0d0e21e |
547 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
548 | char *sym; |
549 | |
a0d0e21e |
550 | if (SvGMAGICAL(sv)) { |
551 | mg_get(sv); |
552 | if (SvROK(sv)) |
553 | goto wasref; |
554 | } |
555 | if (!SvOK(sv)) { |
556 | if (op->op_flags & OPf_REF || |
557 | op->op_private & HINT_STRICT_REFS) |
558 | DIE(no_usym, "a HASH"); |
d83e6520 |
559 | if (dowarn) |
560 | warn(warn_uninit); |
4633a7c4 |
561 | if (GIMME == G_ARRAY) { |
562 | SP--; |
563 | RETURN; |
564 | } |
a0d0e21e |
565 | RETSETUNDEF; |
566 | } |
748a9306 |
567 | sym = SvPV(sv,na); |
a0d0e21e |
568 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
569 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
570 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
571 | } else { |
572 | gv = (GV*)sv; |
a0d0e21e |
573 | } |
67955e0c |
574 | hv = GvHVn(gv); |
a0d0e21e |
575 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
576 | hv = save_hash(gv); |
a0d0e21e |
577 | if (op->op_flags & OPf_REF) { |
578 | SETs((SV*)hv); |
579 | RETURN; |
580 | } |
581 | } |
582 | } |
583 | |
584 | if (GIMME == G_ARRAY) { /* array wanted */ |
585 | *stack_sp = (SV*)hv; |
586 | return do_kv(ARGS); |
587 | } |
588 | else { |
589 | dTARGET; |
c750a3ec |
590 | /* This bit is OK even when hv is really an AV */ |
46fc3d4c |
591 | if (HvFILL(hv)) |
592 | sv_setpvf(TARG, "%ld/%ld", |
593 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
594 | else |
595 | sv_setiv(TARG, 0); |
c750a3ec |
596 | |
a0d0e21e |
597 | SETTARG; |
598 | RETURN; |
599 | } |
600 | } |
601 | |
602 | PP(pp_aassign) |
603 | { |
604 | dSP; |
605 | SV **lastlelem = stack_sp; |
606 | SV **lastrelem = stack_base + POPMARK; |
607 | SV **firstrelem = stack_base + POPMARK + 1; |
608 | SV **firstlelem = lastrelem + 1; |
609 | |
610 | register SV **relem; |
611 | register SV **lelem; |
612 | |
613 | register SV *sv; |
614 | register AV *ary; |
615 | |
54310121 |
616 | I32 gimme; |
a0d0e21e |
617 | HV *hash; |
618 | I32 i; |
619 | int magic; |
620 | |
621 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
622 | |
623 | /* If there's a common identifier on both sides we have to take |
624 | * special care that assigning the identifier on the left doesn't |
625 | * clobber a value on the right that's used later in the list. |
626 | */ |
627 | if (op->op_private & OPpASSIGN_COMMON) { |
628 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
629 | /*SUPPRESS 560*/ |
a1f49e72 |
630 | if (sv = *relem) { |
631 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
632 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
633 | } |
a0d0e21e |
634 | } |
635 | } |
636 | |
637 | relem = firstrelem; |
638 | lelem = firstlelem; |
639 | ary = Null(AV*); |
640 | hash = Null(HV*); |
641 | while (lelem <= lastlelem) { |
bbce6d69 |
642 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
643 | sv = *lelem++; |
644 | switch (SvTYPE(sv)) { |
645 | case SVt_PVAV: |
646 | ary = (AV*)sv; |
748a9306 |
647 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
648 | |
649 | av_clear(ary); |
7e42bd57 |
650 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
651 | i = 0; |
652 | while (relem <= lastrelem) { /* gobble up all the rest */ |
653 | sv = NEWSV(28,0); |
654 | assert(*relem); |
655 | sv_setsv(sv,*relem); |
656 | *(relem++) = sv; |
657 | (void)av_store(ary,i++,sv); |
658 | if (magic) |
659 | mg_set(sv); |
bbce6d69 |
660 | TAINT_NOT; |
a0d0e21e |
661 | } |
662 | break; |
663 | case SVt_PVHV: { |
a0d0e21e |
664 | SV *tmpstr; |
665 | |
666 | hash = (HV*)sv; |
748a9306 |
667 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
668 | hv_clear(hash); |
669 | |
670 | while (relem < lastrelem) { /* gobble up all the rest */ |
671 | STRLEN len; |
4633a7c4 |
672 | if (*relem) |
a0d0e21e |
673 | sv = *(relem++); |
4633a7c4 |
674 | else |
a0d0e21e |
675 | sv = &sv_no, relem++; |
a0d0e21e |
676 | tmpstr = NEWSV(29,0); |
677 | if (*relem) |
678 | sv_setsv(tmpstr,*relem); /* value */ |
679 | *(relem++) = tmpstr; |
760ac839 |
680 | (void)hv_store_ent(hash,sv,tmpstr,0); |
a0d0e21e |
681 | if (magic) |
682 | mg_set(tmpstr); |
bbce6d69 |
683 | TAINT_NOT; |
8e07c86e |
684 | } |
760ac839 |
685 | if (relem == lastrelem) |
686 | warn("Odd number of elements in hash list"); |
a0d0e21e |
687 | } |
688 | break; |
689 | default: |
690 | if (SvTHINKFIRST(sv)) { |
691 | if (SvREADONLY(sv) && curcop != &compiling) { |
692 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
693 | DIE(no_modify); |
694 | if (relem <= lastrelem) |
695 | relem++; |
696 | break; |
697 | } |
698 | if (SvROK(sv)) |
699 | sv_unref(sv); |
700 | } |
701 | if (relem <= lastrelem) { |
702 | sv_setsv(sv, *relem); |
703 | *(relem++) = sv; |
704 | } |
705 | else |
706 | sv_setsv(sv, &sv_undef); |
707 | SvSETMAGIC(sv); |
708 | break; |
709 | } |
710 | } |
711 | if (delaymagic & ~DM_DELAY) { |
712 | if (delaymagic & DM_UID) { |
713 | #ifdef HAS_SETRESUID |
714 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
715 | #else |
716 | # ifdef HAS_SETREUID |
a0d0e21e |
717 | (void)setreuid(uid,euid); |
56febc5e |
718 | # else |
719 | # ifdef HAS_SETRUID |
a0d0e21e |
720 | if ((delaymagic & DM_UID) == DM_RUID) { |
721 | (void)setruid(uid); |
748a9306 |
722 | delaymagic &= ~DM_RUID; |
a0d0e21e |
723 | } |
56febc5e |
724 | # endif /* HAS_SETRUID */ |
725 | # ifdef HAS_SETEUID |
a0d0e21e |
726 | if ((delaymagic & DM_UID) == DM_EUID) { |
727 | (void)seteuid(uid); |
748a9306 |
728 | delaymagic &= ~DM_EUID; |
a0d0e21e |
729 | } |
56febc5e |
730 | # endif /* HAS_SETEUID */ |
a0d0e21e |
731 | if (delaymagic & DM_UID) { |
732 | if (uid != euid) |
733 | DIE("No setreuid available"); |
734 | (void)setuid(uid); |
735 | } |
56febc5e |
736 | # endif /* HAS_SETREUID */ |
737 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
738 | uid = (int)getuid(); |
739 | euid = (int)geteuid(); |
740 | } |
741 | if (delaymagic & DM_GID) { |
742 | #ifdef HAS_SETRESGID |
743 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
744 | #else |
745 | # ifdef HAS_SETREGID |
a0d0e21e |
746 | (void)setregid(gid,egid); |
56febc5e |
747 | # else |
748 | # ifdef HAS_SETRGID |
a0d0e21e |
749 | if ((delaymagic & DM_GID) == DM_RGID) { |
750 | (void)setrgid(gid); |
748a9306 |
751 | delaymagic &= ~DM_RGID; |
a0d0e21e |
752 | } |
56febc5e |
753 | # endif /* HAS_SETRGID */ |
754 | # ifdef HAS_SETEGID |
a0d0e21e |
755 | if ((delaymagic & DM_GID) == DM_EGID) { |
756 | (void)setegid(gid); |
748a9306 |
757 | delaymagic &= ~DM_EGID; |
a0d0e21e |
758 | } |
56febc5e |
759 | # endif /* HAS_SETEGID */ |
a0d0e21e |
760 | if (delaymagic & DM_GID) { |
761 | if (gid != egid) |
762 | DIE("No setregid available"); |
763 | (void)setgid(gid); |
764 | } |
56febc5e |
765 | # endif /* HAS_SETREGID */ |
766 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
767 | gid = (int)getgid(); |
768 | egid = (int)getegid(); |
769 | } |
4633a7c4 |
770 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
771 | } |
772 | delaymagic = 0; |
54310121 |
773 | |
774 | gimme = GIMME_V; |
775 | if (gimme == G_VOID) |
776 | SP = firstrelem - 1; |
777 | else if (gimme == G_SCALAR) { |
778 | dTARGET; |
779 | SP = firstrelem; |
780 | SETi(lastrelem - firstrelem + 1); |
781 | } |
782 | else { |
a0d0e21e |
783 | if (ary || hash) |
784 | SP = lastrelem; |
785 | else |
786 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
787 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
788 | while (relem <= SP) |
0c8c7a05 |
789 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
790 | } |
54310121 |
791 | RETURN; |
a0d0e21e |
792 | } |
793 | |
794 | PP(pp_match) |
795 | { |
796 | dSP; dTARG; |
797 | register PMOP *pm = cPMOP; |
798 | register char *t; |
799 | register char *s; |
800 | char *strend; |
801 | I32 global; |
802 | I32 safebase; |
803 | char *truebase; |
804 | register REGEXP *rx = pm->op_pmregexp; |
805 | I32 gimme = GIMME; |
806 | STRLEN len; |
748a9306 |
807 | I32 minmatch = 0; |
4633a7c4 |
808 | I32 oldsave = savestack_ix; |
f86702cc |
809 | I32 update_minmatch = 1; |
a0d0e21e |
810 | |
811 | if (op->op_flags & OPf_STACKED) |
812 | TARG = POPs; |
813 | else { |
814 | TARG = GvSV(defgv); |
815 | EXTEND(SP,1); |
816 | } |
817 | s = SvPV(TARG, len); |
818 | strend = s + len; |
819 | if (!s) |
820 | DIE("panic: do_match"); |
9212bbba |
821 | TAINT_NOT; |
a0d0e21e |
822 | |
823 | if (pm->op_pmflags & PMf_USED) { |
824 | if (gimme == G_ARRAY) |
825 | RETURN; |
826 | RETPUSHNO; |
827 | } |
828 | |
829 | if (!rx->prelen && curpm) { |
830 | pm = curpm; |
831 | rx = pm->op_pmregexp; |
832 | } |
833 | truebase = t = s; |
834 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
835 | rx->startp[0] = 0; |
836 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
837 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
838 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
839 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
840 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
841 | update_minmatch = 0; |
748a9306 |
842 | } |
a0d0e21e |
843 | } |
844 | } |
748a9306 |
845 | if (!rx->nparens && !global) |
846 | gimme = G_SCALAR; /* accidental array context? */ |
137443ea |
847 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
848 | && !sawampersand); |
a0d0e21e |
849 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
850 | SAVEINT(multiline); |
851 | multiline = pm->op_pmflags & PMf_MULTILINE; |
852 | } |
853 | |
854 | play_it_again: |
855 | if (global && rx->startp[0]) { |
856 | t = s = rx->endp[0]; |
51aa1f50 |
857 | if ((s + rx->minlen) > strend) |
a0d0e21e |
858 | goto nope; |
f86702cc |
859 | if (update_minmatch++) |
860 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
861 | } |
862 | if (pm->op_pmshort) { |
863 | if (pm->op_pmflags & PMf_SCANFIRST) { |
864 | if (SvSCREAM(TARG)) { |
865 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
866 | goto nope; |
867 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
868 | goto nope; |
869 | else if (pm->op_pmflags & PMf_ALL) |
870 | goto yup; |
871 | } |
872 | else if (!(s = fbm_instr((unsigned char*)s, |
873 | (unsigned char*)strend, pm->op_pmshort))) |
874 | goto nope; |
875 | else if (pm->op_pmflags & PMf_ALL) |
876 | goto yup; |
877 | if (s && rx->regback >= 0) { |
878 | ++BmUSEFUL(pm->op_pmshort); |
879 | s -= rx->regback; |
880 | if (s < t) |
881 | s = t; |
882 | } |
883 | else |
884 | s = t; |
885 | } |
886 | else if (!multiline) { |
bbce6d69 |
887 | if (*SvPVX(pm->op_pmshort) != *s |
888 | || (pm->op_pmslen > 1 |
36477c24 |
889 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
890 | goto nope; |
a0d0e21e |
891 | } |
892 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
893 | SvREFCNT_dec(pm->op_pmshort); |
894 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
895 | } |
896 | } |
e50aee73 |
897 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 |
898 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
899 | { |
a0d0e21e |
900 | curpm = pm; |
901 | if (pm->op_pmflags & PMf_ONCE) |
902 | pm->op_pmflags |= PMf_USED; |
903 | goto gotcha; |
904 | } |
905 | else |
906 | goto ret_no; |
907 | /*NOTREACHED*/ |
908 | |
909 | gotcha: |
9212bbba |
910 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
911 | if (gimme == G_ARRAY) { |
912 | I32 iters, i, len; |
913 | |
914 | iters = rx->nparens; |
915 | if (global && !iters) |
916 | i = 1; |
917 | else |
918 | i = 0; |
919 | EXTEND(SP, iters + i); |
bbce6d69 |
920 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
921 | for (i = !i; i <= iters; i++) { |
922 | PUSHs(sv_newmortal()); |
923 | /*SUPPRESS 560*/ |
924 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
925 | len = rx->endp[i] - s; |
926 | sv_setpvn(*SP, s, len); |
927 | } |
928 | } |
929 | if (global) { |
930 | truebase = rx->subbeg; |
5f05dabc |
931 | strend = rx->subend; |
a0d0e21e |
932 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
933 | ++rx->endp[0]; |
934 | goto play_it_again; |
935 | } |
4633a7c4 |
936 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
937 | RETURN; |
938 | } |
939 | else { |
940 | if (global) { |
941 | MAGIC* mg = 0; |
942 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
943 | mg = mg_find(TARG, 'g'); |
944 | if (!mg) { |
945 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
946 | mg = mg_find(TARG, 'g'); |
947 | } |
748a9306 |
948 | if (rx->startp[0]) { |
5f05dabc |
949 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
950 | if (rx->startp[0] == rx->endp[0]) |
951 | mg->mg_flags |= MGf_MINMATCH; |
952 | else |
953 | mg->mg_flags &= ~MGf_MINMATCH; |
954 | } |
a0d0e21e |
955 | } |
4633a7c4 |
956 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
957 | RETPUSHYES; |
958 | } |
959 | |
960 | yup: |
9212bbba |
961 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
962 | ++BmUSEFUL(pm->op_pmshort); |
963 | curpm = pm; |
964 | if (pm->op_pmflags & PMf_ONCE) |
965 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
966 | Safefree(rx->subbase); |
967 | rx->subbase = Nullch; |
a0d0e21e |
968 | if (global) { |
969 | rx->subbeg = truebase; |
970 | rx->subend = strend; |
971 | rx->startp[0] = s; |
972 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
973 | goto gotcha; |
974 | } |
975 | if (sawampersand) { |
976 | char *tmps; |
977 | |
a0d0e21e |
978 | tmps = rx->subbase = savepvn(t, strend-t); |
979 | rx->subbeg = tmps; |
980 | rx->subend = tmps + (strend-t); |
981 | tmps = rx->startp[0] = tmps + (s - t); |
982 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
983 | } |
4633a7c4 |
984 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
985 | RETPUSHYES; |
986 | |
987 | nope: |
988 | if (pm->op_pmshort) |
989 | ++BmUSEFUL(pm->op_pmshort); |
990 | |
991 | ret_no: |
c90c0ff4 |
992 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
993 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
994 | MAGIC* mg = mg_find(TARG, 'g'); |
995 | if (mg) |
996 | mg->mg_len = -1; |
997 | } |
998 | } |
4633a7c4 |
999 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1000 | if (gimme == G_ARRAY) |
1001 | RETURN; |
1002 | RETPUSHNO; |
1003 | } |
1004 | |
1005 | OP * |
1006 | do_readline() |
1007 | { |
11343788 |
1008 | dTHR; |
a0d0e21e |
1009 | dSP; dTARGETSTACKED; |
1010 | register SV *sv; |
1011 | STRLEN tmplen = 0; |
1012 | STRLEN offset; |
760ac839 |
1013 | PerlIO *fp; |
a0d0e21e |
1014 | register IO *io = GvIO(last_in_gv); |
1015 | register I32 type = op->op_type; |
54310121 |
1016 | I32 gimme = GIMME_V; |
e79b0511 |
1017 | MAGIC *mg; |
a0d0e21e |
1018 | |
e79b0511 |
1019 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
1020 | PUSHMARK(SP); |
1021 | XPUSHs(mg->mg_obj); |
1022 | PUTBACK; |
1023 | ENTER; |
54310121 |
1024 | perl_call_method("READLINE", gimme); |
e79b0511 |
1025 | LEAVE; |
1026 | SPAGAIN; |
54310121 |
1027 | if (gimme == G_SCALAR) |
1028 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1029 | RETURN; |
1030 | } |
a0d0e21e |
1031 | fp = Nullfp; |
1032 | if (io) { |
1033 | fp = IoIFP(io); |
1034 | if (!fp) { |
1035 | if (IoFLAGS(io) & IOf_ARGV) { |
1036 | if (IoFLAGS(io) & IOf_START) { |
1037 | IoFLAGS(io) &= ~IOf_START; |
1038 | IoLINES(io) = 0; |
1039 | if (av_len(GvAVn(last_in_gv)) < 0) { |
1040 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
1041 | av_push(GvAVn(last_in_gv), tmpstr); |
1042 | } |
1043 | } |
1044 | fp = nextargv(last_in_gv); |
1045 | if (!fp) { /* Note: fp != IoIFP(io) */ |
1046 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
1047 | IoFLAGS(io) |= IOf_START; |
1048 | } |
1049 | } |
1050 | else if (type == OP_GLOB) { |
1051 | SV *tmpcmd = NEWSV(55, 0); |
1052 | SV *tmpglob = POPs; |
1053 | ENTER; |
1054 | SAVEFREESV(tmpcmd); |
1055 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1056 | /* since spawning off a process is a real performance hit */ |
1057 | { |
1058 | #include <descrip.h> |
1059 | #include <lib$routines.h> |
1060 | #include <nam.h> |
1061 | #include <rmsdef.h> |
1062 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1063 | char vmsspec[NAM$C_MAXRSS+1]; |
1064 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1065 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1066 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1067 | PerlIO *tmpfp; |
a0d0e21e |
1068 | STRLEN i; |
1069 | struct dsc$descriptor_s wilddsc |
1070 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1071 | struct dsc$descriptor_vs rsdsc |
1072 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1073 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1074 | |
1075 | /* We could find out if there's an explicit dev/dir or version |
1076 | by peeking into lib$find_file's internal context at |
1077 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1078 | but that's unsupported, so I don't want to do it now and |
1079 | have it bite someone in the future. */ |
1080 | strcat(tmpfnam,tmpnam(NULL)); |
1081 | cp = SvPV(tmpglob,i); |
1082 | for (; i; i--) { |
1083 | if (cp[i] == ';') hasver = 1; |
1084 | if (cp[i] == '.') { |
1085 | if (sts) hasver = 1; |
1086 | else sts = 1; |
1087 | } |
1088 | if (cp[i] == '/') { |
1089 | hasdir = isunix = 1; |
1090 | break; |
748a9306 |
1091 | } |
a0d0e21e |
1092 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1093 | hasdir = 1; |
1094 | break; |
1095 | } |
1096 | } |
760ac839 |
1097 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1098 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1099 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1100 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1101 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1102 | end = rstr + (unsigned long int) *rslt; |
1103 | if (!hasver) while (*end != ';') end--; |
1104 | *(end++) = '\n'; *end = '\0'; |
1105 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1106 | if (hasdir) { |
f86702cc |
1107 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1108 | begin = rstr; |
1109 | } |
1110 | else { |
1111 | begin = end; |
1112 | while (*(--begin) != ']' && *begin != '>') ; |
1113 | ++begin; |
1114 | } |
760ac839 |
1115 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1116 | } |
1117 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1118 | if (ok && sts != RMS$_NMF && |
1119 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1120 | if (!ok) { |
c07a80fd |
1121 | if (!(sts & 1)) { |
1122 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1123 | } |
760ac839 |
1124 | PerlIO_close(tmpfp); |
a0d0e21e |
1125 | fp = NULL; |
1126 | } |
1127 | else { |
760ac839 |
1128 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1129 | IoTYPE(io) = '<'; |
1130 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1131 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1132 | } |
1133 | } |
1134 | } |
1135 | #else /* !VMS */ |
1136 | #ifdef DOSISH |
67955e0c |
1137 | #ifdef OS2 |
1138 | sv_setpv(tmpcmd, "for a in "); |
1139 | sv_catsv(tmpcmd, tmpglob); |
1140 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1141 | #else |
a0d0e21e |
1142 | sv_setpv(tmpcmd, "perlglob "); |
1143 | sv_catsv(tmpcmd, tmpglob); |
1144 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1145 | #endif /* !OS2 */ |
1146 | #else /* !DOSISH */ |
1147 | #if defined(CSH) |
a0d0e21e |
1148 | sv_setpvn(tmpcmd, cshname, cshlen); |
1149 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1150 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1151 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1152 | #else |
1153 | sv_setpv(tmpcmd, "echo "); |
1154 | sv_catsv(tmpcmd, tmpglob); |
1155 | #if 'z' - 'a' == 25 |
1156 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1157 | #else |
1158 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1159 | #endif |
1160 | #endif /* !CSH */ |
67955e0c |
1161 | #endif /* !DOSISH */ |
c07a80fd |
1162 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1163 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1164 | fp = IoIFP(io); |
1165 | #endif /* !VMS */ |
1166 | LEAVE; |
1167 | } |
1168 | } |
1169 | else if (type == OP_GLOB) |
1170 | SP--; |
1171 | } |
1172 | if (!fp) { |
4633a7c4 |
1173 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1174 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 |
1175 | if (gimme == G_SCALAR) { |
a0d0e21e |
1176 | (void)SvOK_off(TARG); |
1177 | PUSHTARG; |
1178 | } |
1179 | RETURN; |
1180 | } |
54310121 |
1181 | if (gimme == G_SCALAR) { |
a0d0e21e |
1182 | sv = TARG; |
9607fc9c |
1183 | if (SvROK(sv)) |
1184 | sv_unref(sv); |
a0d0e21e |
1185 | (void)SvUPGRADE(sv, SVt_PV); |
1186 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1187 | if (!tmplen) |
1188 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1189 | if (type == OP_RCATLINE) |
1190 | offset = SvCUR(sv); |
1191 | else |
1192 | offset = 0; |
1193 | } |
54310121 |
1194 | else { |
1195 | sv = sv_2mortal(NEWSV(57, 80)); |
1196 | offset = 0; |
1197 | } |
a0d0e21e |
1198 | for (;;) { |
1199 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1200 | PerlIO_clearerr(fp); |
a0d0e21e |
1201 | if (IoFLAGS(io) & IOf_ARGV) { |
1202 | fp = nextargv(last_in_gv); |
1203 | if (fp) |
1204 | continue; |
1205 | (void)do_close(last_in_gv, FALSE); |
1206 | IoFLAGS(io) |= IOf_START; |
1207 | } |
1208 | else if (type == OP_GLOB) { |
5cd24f17 |
1209 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1210 | warn("internal error: glob failed"); |
a0d0e21e |
1211 | } |
54310121 |
1212 | if (gimme == G_SCALAR) { |
a0d0e21e |
1213 | (void)SvOK_off(TARG); |
1214 | PUSHTARG; |
1215 | } |
1216 | RETURN; |
1217 | } |
bbce6d69 |
1218 | /* This should not be marked tainted if the fp is marked clean */ |
1219 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1220 | TAINT; |
1221 | SvTAINTED_on(sv); |
1222 | } |
a0d0e21e |
1223 | IoLINES(io)++; |
71be2cbc |
1224 | SvSETMAGIC(sv); |
a0d0e21e |
1225 | XPUSHs(sv); |
a0d0e21e |
1226 | if (type == OP_GLOB) { |
1227 | char *tmps; |
1228 | |
c07a80fd |
1229 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1230 | tmps = SvEND(sv) - 1; |
1231 | if (*tmps == *SvPVX(rs)) { |
1232 | *tmps = '\0'; |
1233 | SvCUR(sv)--; |
1234 | } |
1235 | } |
a0d0e21e |
1236 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1237 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1238 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1239 | break; |
1240 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1241 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1242 | continue; |
1243 | } |
1244 | } |
54310121 |
1245 | if (gimme == G_ARRAY) { |
a0d0e21e |
1246 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1247 | SvLEN_set(sv, SvCUR(sv)+1); |
1248 | Renew(SvPVX(sv), SvLEN(sv), char); |
1249 | } |
1250 | sv = sv_2mortal(NEWSV(58, 80)); |
1251 | continue; |
1252 | } |
54310121 |
1253 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1254 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1255 | if (SvCUR(sv) < 60) |
1256 | SvLEN_set(sv, 80); |
1257 | else |
1258 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1259 | Renew(SvPVX(sv), SvLEN(sv), char); |
1260 | } |
1261 | RETURN; |
1262 | } |
1263 | } |
1264 | |
1265 | PP(pp_enter) |
1266 | { |
1267 | dSP; |
1268 | register CONTEXT *cx; |
54310121 |
1269 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e |
1270 | |
54310121 |
1271 | if (gimme == -1) { |
1272 | if (cxstack_ix >= 0) |
1273 | gimme = cxstack[cxstack_ix].blk_gimme; |
1274 | else |
1275 | gimme = G_SCALAR; |
1276 | } |
a0d0e21e |
1277 | |
1278 | ENTER; |
1279 | |
1280 | SAVETMPS; |
1281 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1282 | |
1283 | RETURN; |
1284 | } |
1285 | |
1286 | PP(pp_helem) |
1287 | { |
1288 | dSP; |
760ac839 |
1289 | HE* he; |
ae77835f |
1290 | SV **svp; |
a0d0e21e |
1291 | SV *keysv = POPs; |
a0d0e21e |
1292 | HV *hv = (HV*)POPs; |
68dc0745 |
1293 | U32 lval = op->op_flags & OPf_MOD; |
1294 | U32 defer = op->op_private & OPpLVAL_DEFER; |
a0d0e21e |
1295 | |
ae77835f |
1296 | if (SvTYPE(hv) == SVt_PVHV) { |
1297 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1298 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1299 | } |
1300 | else if (SvTYPE(hv) == SVt_PVAV) { |
97fcbf96 |
1301 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1302 | } |
c750a3ec |
1303 | else { |
a0d0e21e |
1304 | RETPUSHUNDEF; |
c750a3ec |
1305 | } |
a0d0e21e |
1306 | if (lval) { |
97fcbf96 |
1307 | if (!svp || *svp == &sv_undef) { |
68dc0745 |
1308 | SV* lv; |
1309 | SV* key2; |
1310 | if (!defer) |
1311 | DIE(no_helem, SvPV(keysv, na)); |
1312 | lv = sv_newmortal(); |
1313 | sv_upgrade(lv, SVt_PVLV); |
1314 | LvTYPE(lv) = 'y'; |
1315 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1316 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1317 | LvTARG(lv) = SvREFCNT_inc(hv); |
1318 | LvTARGLEN(lv) = 1; |
1319 | PUSHs(lv); |
1320 | RETURN; |
1321 | } |
5f05dabc |
1322 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1323 | if (HvNAME(hv) && isGV(*svp)) |
1324 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1325 | else |
ae77835f |
1326 | save_svref(svp); |
5f05dabc |
1327 | } |
1328 | else if (op->op_private & OPpDEREF) |
ae77835f |
1329 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
1330 | } |
1331 | PUSHs(svp ? *svp : &sv_undef); |
1332 | RETURN; |
1333 | } |
1334 | |
1335 | PP(pp_leave) |
1336 | { |
1337 | dSP; |
1338 | register CONTEXT *cx; |
1339 | register SV **mark; |
1340 | SV **newsp; |
1341 | PMOP *newpm; |
1342 | I32 gimme; |
1343 | |
1344 | if (op->op_flags & OPf_SPECIAL) { |
1345 | cx = &cxstack[cxstack_ix]; |
1346 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1347 | } |
1348 | |
1349 | POPBLOCK(cx,newpm); |
1350 | |
54310121 |
1351 | gimme = OP_GIMME(op, -1); |
1352 | if (gimme == -1) { |
1353 | if (cxstack_ix >= 0) |
1354 | gimme = cxstack[cxstack_ix].blk_gimme; |
1355 | else |
1356 | gimme = G_SCALAR; |
1357 | } |
a0d0e21e |
1358 | |
a1f49e72 |
1359 | TAINT_NOT; |
54310121 |
1360 | if (gimme == G_VOID) |
1361 | SP = newsp; |
1362 | else if (gimme == G_SCALAR) { |
1363 | MARK = newsp + 1; |
1364 | if (MARK <= SP) |
1365 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1366 | *MARK = TOPs; |
1367 | else |
1368 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1369 | else { |
54310121 |
1370 | MEXTEND(mark,0); |
1371 | *MARK = &sv_undef; |
a0d0e21e |
1372 | } |
54310121 |
1373 | SP = MARK; |
a0d0e21e |
1374 | } |
54310121 |
1375 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1376 | /* in case LEAVE wipes old return values */ |
1377 | for (mark = newsp + 1; mark <= SP; mark++) { |
1378 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1379 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1380 | TAINT_NOT; /* Each item is independent */ |
1381 | } |
1382 | } |
a0d0e21e |
1383 | } |
1384 | curpm = newpm; /* Don't pop $1 et al till now */ |
1385 | |
1386 | LEAVE; |
1387 | |
1388 | RETURN; |
1389 | } |
1390 | |
1391 | PP(pp_iter) |
1392 | { |
1393 | dSP; |
1394 | register CONTEXT *cx; |
5f05dabc |
1395 | SV* sv; |
4633a7c4 |
1396 | AV* av; |
a0d0e21e |
1397 | |
1398 | EXTEND(sp, 1); |
1399 | cx = &cxstack[cxstack_ix]; |
1400 | if (cx->cx_type != CXt_LOOP) |
1401 | DIE("panic: pp_iter"); |
1402 | |
4633a7c4 |
1403 | av = cx->blk_loop.iterary; |
71be2cbc |
1404 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1405 | RETPUSHNO; |
a0d0e21e |
1406 | |
7a4c00b4 |
1407 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1408 | |
5f05dabc |
1409 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1410 | SvTEMP_off(sv); |
a0d0e21e |
1411 | else |
5f05dabc |
1412 | sv = &sv_undef; |
1413 | if (av != curstack && SvIMMORTAL(sv)) { |
1414 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1415 | if (lv && SvREFCNT(lv) > 1) { |
1416 | SvREFCNT_dec(lv); |
1417 | lv = Nullsv; |
1418 | } |
5f05dabc |
1419 | if (lv) |
1420 | SvREFCNT_dec(LvTARG(lv)); |
1421 | else { |
68dc0745 |
1422 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1423 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1424 | LvTYPE(lv) = 'y'; |
68dc0745 |
1425 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1426 | } |
1427 | LvTARG(lv) = SvREFCNT_inc(av); |
1428 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
68dc0745 |
1429 | LvTARGLEN(lv) = -1; |
5f05dabc |
1430 | sv = (SV*)lv; |
1431 | } |
a0d0e21e |
1432 | |
7a4c00b4 |
1433 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1434 | RETPUSHYES; |
1435 | } |
1436 | |
1437 | PP(pp_subst) |
1438 | { |
1439 | dSP; dTARG; |
1440 | register PMOP *pm = cPMOP; |
1441 | PMOP *rpm = pm; |
1442 | register SV *dstr; |
1443 | register char *s; |
1444 | char *strend; |
1445 | register char *m; |
1446 | char *c; |
1447 | register char *d; |
1448 | STRLEN clen; |
1449 | I32 iters = 0; |
1450 | I32 maxiters; |
1451 | register I32 i; |
1452 | bool once; |
71be2cbc |
1453 | bool rxtainted; |
a0d0e21e |
1454 | char *orig; |
1455 | I32 safebase; |
1456 | register REGEXP *rx = pm->op_pmregexp; |
1457 | STRLEN len; |
1458 | int force_on_match = 0; |
4633a7c4 |
1459 | I32 oldsave = savestack_ix; |
a0d0e21e |
1460 | |
5cd24f17 |
1461 | /* known replacement string? */ |
1462 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
a0d0e21e |
1463 | if (op->op_flags & OPf_STACKED) |
1464 | TARG = POPs; |
1465 | else { |
1466 | TARG = GvSV(defgv); |
1467 | EXTEND(SP,1); |
1468 | } |
68dc0745 |
1469 | if (SvREADONLY(TARG) |
1470 | || (SvTYPE(TARG) > SVt_PVLV |
1471 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
1472 | croak(no_modify); |
a0d0e21e |
1473 | s = SvPV(TARG, len); |
68dc0745 |
1474 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1475 | force_on_match = 1; |
9212bbba |
1476 | TAINT_NOT; |
a0d0e21e |
1477 | |
1478 | force_it: |
1479 | if (!pm || !s) |
1480 | DIE("panic: do_subst"); |
1481 | |
1482 | strend = s + len; |
1483 | maxiters = (strend - s) + 10; |
1484 | |
1485 | if (!rx->prelen && curpm) { |
1486 | pm = curpm; |
1487 | rx = pm->op_pmregexp; |
1488 | } |
5f05dabc |
1489 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e |
1490 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1491 | SAVEINT(multiline); |
1492 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1493 | } |
1494 | orig = m = s; |
1495 | if (pm->op_pmshort) { |
1496 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1497 | if (SvSCREAM(TARG)) { |
1498 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1499 | goto nope; |
1500 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1501 | goto nope; |
1502 | } |
1503 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1504 | pm->op_pmshort))) |
1505 | goto nope; |
1506 | if (s && rx->regback >= 0) { |
1507 | ++BmUSEFUL(pm->op_pmshort); |
1508 | s -= rx->regback; |
1509 | if (s < m) |
1510 | s = m; |
1511 | } |
1512 | else |
1513 | s = m; |
1514 | } |
1515 | else if (!multiline) { |
bbce6d69 |
1516 | if (*SvPVX(pm->op_pmshort) != *s |
1517 | || (pm->op_pmslen > 1 |
36477c24 |
1518 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
1519 | goto nope; |
a0d0e21e |
1520 | } |
1521 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1522 | SvREFCNT_dec(pm->op_pmshort); |
1523 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1524 | } |
1525 | } |
71be2cbc |
1526 | |
1527 | /* only replace once? */ |
a0d0e21e |
1528 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1529 | |
1530 | /* known replacement string? */ |
5cd24f17 |
1531 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1532 | |
1533 | /* can do inplace substitution? */ |
137443ea |
1534 | if (c && clen <= rx->minlen && safebase) { |
71be2cbc |
1535 | if (! pregexec(rx, s, strend, orig, 0, |
1536 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1537 | PUSHs(&sv_no); |
1538 | LEAVE_SCOPE(oldsave); |
1539 | RETURN; |
1540 | } |
1541 | if (force_on_match) { |
1542 | force_on_match = 0; |
1543 | s = SvPV_force(TARG, len); |
1544 | goto force_it; |
1545 | } |
71be2cbc |
1546 | d = s; |
1547 | curpm = pm; |
1548 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1549 | if (once) { |
1550 | rxtainted = rx->exec_tainted; |
1551 | m = rx->startp[0]; |
1552 | d = rx->endp[0]; |
1553 | s = orig; |
1554 | if (m - s > strend - d) { /* faster to shorten from end */ |
1555 | if (clen) { |
1556 | Copy(c, m, clen, char); |
1557 | m += clen; |
a0d0e21e |
1558 | } |
71be2cbc |
1559 | i = strend - d; |
1560 | if (i > 0) { |
1561 | Move(d, m, i, char); |
1562 | m += i; |
a0d0e21e |
1563 | } |
71be2cbc |
1564 | *m = '\0'; |
1565 | SvCUR_set(TARG, m - s); |
1566 | } |
1567 | /*SUPPRESS 560*/ |
1568 | else if (i = m - s) { /* faster from front */ |
1569 | d -= clen; |
1570 | m = d; |
1571 | sv_chop(TARG, d-i); |
1572 | s += i; |
1573 | while (i--) |
1574 | *--d = *--s; |
1575 | if (clen) |
1576 | Copy(c, m, clen, char); |
1577 | } |
1578 | else if (clen) { |
1579 | d -= clen; |
1580 | sv_chop(TARG, d); |
1581 | Copy(c, d, clen, char); |
1582 | } |
1583 | else { |
1584 | sv_chop(TARG, d); |
1585 | } |
9212bbba |
1586 | TAINT_IF(rxtainted); |
71be2cbc |
1587 | PUSHs(&sv_yes); |
1588 | } |
1589 | else { |
1590 | rxtainted = 0; |
1591 | do { |
1592 | if (iters++ > maxiters) |
1593 | DIE("Substitution loop"); |
1594 | rxtainted |= rx->exec_tainted; |
1595 | m = rx->startp[0]; |
1596 | /*SUPPRESS 560*/ |
1597 | if (i = m - s) { |
1598 | if (s != d) |
1599 | Move(s, d, i, char); |
1600 | d += i; |
a0d0e21e |
1601 | } |
71be2cbc |
1602 | if (clen) { |
1603 | Copy(c, d, clen, char); |
1604 | d += clen; |
1605 | } |
1606 | s = rx->endp[0]; |
1607 | } while (pregexec(rx, s, strend, orig, s == m, |
1608 | Nullsv, TRUE)); /* don't match same null twice */ |
1609 | if (s != d) { |
1610 | i = strend - s; |
1611 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1612 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1613 | } |
9212bbba |
1614 | TAINT_IF(rxtainted); |
71be2cbc |
1615 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1616 | } |
71be2cbc |
1617 | (void)SvPOK_only(TARG); |
1618 | SvSETMAGIC(TARG); |
9212bbba |
1619 | SvTAINT(TARG); |
71be2cbc |
1620 | LEAVE_SCOPE(oldsave); |
1621 | RETURN; |
a0d0e21e |
1622 | } |
71be2cbc |
1623 | |
e50aee73 |
1624 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc |
1625 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e |
1626 | if (force_on_match) { |
1627 | force_on_match = 0; |
1628 | s = SvPV_force(TARG, len); |
1629 | goto force_it; |
1630 | } |
71be2cbc |
1631 | rxtainted = rx->exec_tainted; |
a0d0e21e |
1632 | dstr = NEWSV(25, sv_len(TARG)); |
1633 | sv_setpvn(dstr, m, s-m); |
1634 | curpm = pm; |
1635 | if (!c) { |
1636 | register CONTEXT *cx; |
1637 | PUSHSUBST(cx); |
1638 | RETURNOP(cPMOP->op_pmreplroot); |
1639 | } |
1640 | do { |
1641 | if (iters++ > maxiters) |
1642 | DIE("Substitution loop"); |
71be2cbc |
1643 | rxtainted |= rx->exec_tainted; |
a0d0e21e |
1644 | if (rx->subbase && rx->subbase != orig) { |
1645 | m = s; |
1646 | s = orig; |
1647 | orig = rx->subbase; |
1648 | s = orig + (m - s); |
1649 | strend = s + (strend - m); |
1650 | } |
1651 | m = rx->startp[0]; |
1652 | sv_catpvn(dstr, s, m-s); |
1653 | s = rx->endp[0]; |
1654 | if (clen) |
1655 | sv_catpvn(dstr, c, clen); |
1656 | if (once) |
1657 | break; |
5f05dabc |
1658 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e |
1659 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1660 | |
9212bbba |
1661 | TAINT_IF(rxtainted); |
1662 | |
4633a7c4 |
1663 | (void)SvOOK_off(TARG); |
cb0b1708 |
1664 | Safefree(SvPVX(TARG)); |
748a9306 |
1665 | SvPVX(TARG) = SvPVX(dstr); |
1666 | SvCUR_set(TARG, SvCUR(dstr)); |
1667 | SvLEN_set(TARG, SvLEN(dstr)); |
1668 | SvPVX(dstr) = 0; |
1669 | sv_free(dstr); |
1670 | |
a0d0e21e |
1671 | (void)SvPOK_only(TARG); |
1672 | SvSETMAGIC(TARG); |
9212bbba |
1673 | SvTAINT(TARG); |
a0d0e21e |
1674 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1675 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1676 | RETURN; |
1677 | } |
5cd24f17 |
1678 | goto ret_no; |
a0d0e21e |
1679 | |
1680 | nope: |
1681 | ++BmUSEFUL(pm->op_pmshort); |
5cd24f17 |
1682 | |
1683 | ret_no: |
a0d0e21e |
1684 | PUSHs(&sv_no); |
4633a7c4 |
1685 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1686 | RETURN; |
1687 | } |
1688 | |
1689 | PP(pp_grepwhile) |
1690 | { |
1691 | dSP; |
1692 | |
1693 | if (SvTRUEx(POPs)) |
1694 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1695 | ++*markstack_ptr; |
1696 | LEAVE; /* exit inner scope */ |
1697 | |
1698 | /* All done yet? */ |
1699 | if (stack_base + *markstack_ptr > sp) { |
1700 | I32 items; |
54310121 |
1701 | I32 gimme = GIMME_V; |
a0d0e21e |
1702 | |
1703 | LEAVE; /* exit outer scope */ |
1704 | (void)POPMARK; /* pop src */ |
1705 | items = --*markstack_ptr - markstack_ptr[-1]; |
1706 | (void)POPMARK; /* pop dst */ |
1707 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
1708 | if (gimme == G_SCALAR) { |
a0d0e21e |
1709 | dTARGET; |
1710 | XPUSHi(items); |
a0d0e21e |
1711 | } |
54310121 |
1712 | else if (gimme == G_ARRAY) |
1713 | SP += items; |
a0d0e21e |
1714 | RETURN; |
1715 | } |
1716 | else { |
1717 | SV *src; |
1718 | |
1719 | ENTER; /* enter inner scope */ |
1720 | SAVESPTR(curpm); |
1721 | |
1722 | src = stack_base[*markstack_ptr]; |
1723 | SvTEMP_off(src); |
1724 | GvSV(defgv) = src; |
1725 | |
1726 | RETURNOP(cLOGOP->op_other); |
1727 | } |
1728 | } |
1729 | |
1730 | PP(pp_leavesub) |
1731 | { |
1732 | dSP; |
1733 | SV **mark; |
1734 | SV **newsp; |
1735 | PMOP *newpm; |
1736 | I32 gimme; |
1737 | register CONTEXT *cx; |
f86702cc |
1738 | struct block_sub cxsub; |
a0d0e21e |
1739 | |
1740 | POPBLOCK(cx,newpm); |
f86702cc |
1741 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1742 | |
a1f49e72 |
1743 | TAINT_NOT; |
a0d0e21e |
1744 | if (gimme == G_SCALAR) { |
1745 | MARK = newsp + 1; |
1746 | if (MARK <= SP) |
f86702cc |
1747 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e |
1748 | else { |
f86702cc |
1749 | MEXTEND(MARK, 0); |
a0d0e21e |
1750 | *MARK = &sv_undef; |
1751 | } |
1752 | SP = MARK; |
1753 | } |
54310121 |
1754 | else if (gimme == G_ARRAY) { |
f86702cc |
1755 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1756 | if (!SvTEMP(*MARK)) { |
f86702cc |
1757 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1758 | TAINT_NOT; /* Each item is independent */ |
1759 | } |
f86702cc |
1760 | } |
a0d0e21e |
1761 | } |
f86702cc |
1762 | PUTBACK; |
1763 | |
1764 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1765 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1766 | |
1767 | LEAVE; |
a0d0e21e |
1768 | return pop_return(); |
1769 | } |
1770 | |
1771 | PP(pp_entersub) |
1772 | { |
1773 | dSP; dPOPss; |
1774 | GV *gv; |
1775 | HV *stash; |
1776 | register CV *cv; |
1777 | register CONTEXT *cx; |
5d94fbed |
1778 | I32 gimme; |
07055b4c |
1779 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1780 | |
1781 | if (!sv) |
1782 | DIE("Not a CODE reference"); |
1783 | switch (SvTYPE(sv)) { |
1784 | default: |
1785 | if (!SvROK(sv)) { |
748a9306 |
1786 | char *sym; |
1787 | |
a0d0e21e |
1788 | if (sv == &sv_yes) /* unfound import, ignore */ |
1789 | RETURN; |
15ff848f |
1790 | if (SvGMAGICAL(sv)) { |
1791 | mg_get(sv); |
1792 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1793 | } |
1794 | else |
1795 | sym = SvPV(sv, na); |
1796 | if (!sym) |
a0d0e21e |
1797 | DIE(no_usym, "a subroutine"); |
1798 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1799 | DIE(no_symref, sym, "a subroutine"); |
1800 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1801 | break; |
1802 | } |
1803 | cv = (CV*)SvRV(sv); |
1804 | if (SvTYPE(cv) == SVt_PVCV) |
1805 | break; |
1806 | /* FALL THROUGH */ |
1807 | case SVt_PVHV: |
1808 | case SVt_PVAV: |
1809 | DIE("Not a CODE reference"); |
1810 | case SVt_PVCV: |
1811 | cv = (CV*)sv; |
1812 | break; |
1813 | case SVt_PVGV: |
8ebc5c01 |
1814 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
1815 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1816 | break; |
1817 | } |
1818 | |
1819 | ENTER; |
1820 | SAVETMPS; |
1821 | |
1822 | retry: |
1823 | if (!cv) |
1824 | DIE("Not a CODE reference"); |
1825 | |
1826 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
1827 | GV* autogv; |
1828 | SV* subname; |
1829 | |
1830 | /* anonymous or undef'd function leaves us no recourse */ |
1831 | if (CvANON(cv) || !(gv = CvGV(cv))) |
1832 | DIE("Undefined subroutine called"); |
1833 | /* autoloaded stub? */ |
1834 | if (cv != GvCV(gv)) { |
1835 | cv = GvCV(gv); |
1836 | goto retry; |
a0d0e21e |
1837 | } |
44a8e56a |
1838 | /* should call AUTOLOAD now? */ |
54310121 |
1839 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1840 | FALSE))) |
1841 | { |
44a8e56a |
1842 | cv = GvCV(autogv); |
1843 | goto retry; |
a0d0e21e |
1844 | } |
44a8e56a |
1845 | /* sorry */ |
1846 | subname = sv_newmortal(); |
1847 | gv_efullname3(subname, gv, Nullch); |
1848 | DIE("Undefined subroutine &%s called", SvPVX(subname)); |
a0d0e21e |
1849 | } |
1850 | |
54310121 |
1851 | gimme = GIMME_V; |
28757baa |
1852 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) { |
71be2cbc |
1853 | SV *oldsv = sv; |
a0d0e21e |
1854 | sv = GvSV(DBsub); |
1855 | save_item(sv); |
67955e0c |
1856 | gv = CvGV(cv); |
71be2cbc |
1857 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1858 | || strEQ(GvNAME(gv), "END") |
1859 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1860 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1861 | && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */ |
1862 | /* GV is potentially non-unique, or contain different CV. */ |
748a9306 |
1863 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1864 | } |
748a9306 |
1865 | else { |
4f732624 |
1866 | gv_efullname3(sv, gv, Nullch); |
748a9306 |
1867 | } |
a0d0e21e |
1868 | cv = GvCV(DBsub); |
67955e0c |
1869 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1870 | if (!cv) |
1871 | DIE("No DBsub routine"); |
1872 | } |
1873 | |
11343788 |
1874 | #ifdef USE_THREADS |
1875 | MUTEX_LOCK(CvMUTEXP(cv)); |
1876 | if (!CvCONDP(cv)) { |
1877 | #ifdef DEBUGGING |
1878 | DEBUG_L((fprintf(stderr, "0x%lx entering fast %s\n", |
1879 | (unsigned long)thr, SvPEEK((SV*)cv)))); |
1880 | #endif /* DEBUGGING */ |
1881 | MUTEX_UNLOCK(CvMUTEXP(cv)); /* fast sub wants neither sync nor clone */ |
1882 | } |
f93b4edd |
1883 | else if (SvFLAGS(cv) & SVp_SYNC) { |
11343788 |
1884 | /* |
1885 | * It's a synchronised CV. Wait until it's free unless |
1886 | * we own it already (in which case we're recursing). |
1887 | */ |
1888 | if (CvOWNER(cv) && CvOWNER(cv) != thr) { |
1889 | do { |
1890 | DEBUG_L((fprintf(stderr, "0x%lx wait for 0x%lx to leave %s\n", |
1891 | (unsigned long)thr,(unsigned long)CvOWNER(cv), |
1892 | SvPEEK((SV*)cv)))); |
1893 | COND_WAIT(CvCONDP(cv), CvMUTEXP(cv)); /* yawn */ |
1894 | } while (CvOWNER(cv)); |
1895 | } |
1896 | CvOWNER(cv) = thr; /* Assert ownership */ |
1897 | SvREFCNT_inc(cv); |
1898 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1899 | if (CvDEPTH(cv) == 0) |
1900 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
1901 | } |
1902 | else { |
1903 | /* |
1904 | * It's an ordinary unsynchronised CV so we must distinguish |
1905 | * three cases. (1) It's ours already (and we're recursing); |
1906 | * (2) it's free (but we may already be using a cached clone); |
1907 | * (3) another thread owns it. Case (1) is easy: we just use it. |
1908 | * Case (2) means we look for a clone--if we have one, use it |
1909 | * otherwise grab ownership of cv. Case (3) means look we for a |
1910 | * clone and have to create one if we don't already have one. |
1911 | * Why look for a clone in case (2) when we could just grab |
1912 | * ownership of cv straight away? Well, we could be recursing, |
1913 | * i.e. we originally tried to enter cv while another thread |
1914 | * owned it (hence we used a clone) but it has been freed up |
1915 | * and we're now recursing into it. It may or may not be "better" |
1916 | * to use the clone but at least CvDEPTH can be trusted. |
1917 | */ |
1918 | if (CvOWNER(cv) == thr) |
1919 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1920 | else { |
1921 | /* Case (2) or (3) */ |
1922 | SV **svp; |
1923 | |
1924 | /* |
1925 | * XXX Might it be better to release CvMUTEXP(cv) while we |
1926 | * do the hv_fetch? We might find someone has pinched it |
1927 | * when we look again, in which case we would be in case |
1928 | * (3) instead of (2) so we'd have to clone. Would the fact |
1929 | * that we released the mutex more quickly make up for this? |
1930 | */ |
1931 | svp = hv_fetch(cvcache, (char *)cv, sizeof(cv), FALSE); |
1932 | if (svp) { |
1933 | /* We already have a clone to use */ |
1934 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1935 | cv = *(CV**)svp; |
1936 | DEBUG_L(fprintf(stderr, |
1937 | "entersub: 0x%lx already has clone 0x%lx:%s\n", |
1938 | (unsigned long) thr, (unsigned long) cv, |
1939 | SvPEEK((SV*)cv))); |
1940 | CvOWNER(cv) = thr; |
1941 | SvREFCNT_inc(cv); |
1942 | if (CvDEPTH(cv) == 0) |
1943 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
1944 | } |
1945 | else { |
1946 | /* (2) => grab ownership of cv. (3) => make clone */ |
1947 | if (!CvOWNER(cv)) { |
1948 | CvOWNER(cv) = thr; |
1949 | SvREFCNT_inc(cv); |
1950 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1951 | DEBUG_L(fprintf(stderr, |
1952 | "entersub: 0x%lx grabbing 0x%lx:%s\n", |
1953 | (unsigned long) thr, (unsigned long) cv, |
1954 | SvPEEK((SV*)cv))); |
1955 | } else { |
1956 | /* Make a new clone. */ |
1957 | CV *clonecv; |
1958 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
1959 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1960 | DEBUG_L((fprintf(stderr, |
1961 | "entersub: 0x%lx cloning 0x%lx:%s\n", |
1962 | (unsigned long) thr, (unsigned long) cv, |
1963 | SvPEEK((SV*)cv)))); |
1964 | /* |
1965 | * We're creating a new clone so there's no race |
1966 | * between the original MUTEX_UNLOCK and the |
1967 | * SvREFCNT_inc since no one will be trying to undef |
1968 | * it out from underneath us. At least, I don't think |
1969 | * there's a race... |
1970 | */ |
1971 | clonecv = cv_clone(cv); |
1972 | SvREFCNT_dec(cv); /* finished with this */ |
1973 | hv_store(cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
1974 | CvOWNER(clonecv) = thr; |
1975 | cv = clonecv; |
1976 | SvREFCNT_inc(cv); |
1977 | } |
1978 | assert(CvDEPTH(cv) == 0); |
1979 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
1980 | } |
1981 | } |
1982 | } |
1983 | #endif /* USE_THREADS */ |
1984 | |
1985 | gimme = GIMME; |
1986 | |
a0d0e21e |
1987 | if (CvXSUB(cv)) { |
1988 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1989 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1990 | dMARK; |
1991 | register I32 items = SP - MARK; |
67955e0c |
1992 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1993 | while (sp > mark) { |
1994 | sp[1] = sp[0]; |
1995 | sp--; |
1996 | } |
1997 | stack_sp = mark + 1; |
ecfc5424 |
1998 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1999 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
2000 | MARK - stack_base + 1, |
2001 | items); |
a0d0e21e |
2002 | stack_sp = stack_base + items; |
2003 | } |
2004 | else { |
748a9306 |
2005 | I32 markix = TOPMARK; |
2006 | |
a0d0e21e |
2007 | PUTBACK; |
67955e0c |
2008 | |
2009 | if (!hasargs) { |
2010 | /* Need to copy @_ to stack. Alternative may be to |
2011 | * switch stack to @_, and copy return values |
2012 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2013 | AV* av; |
2014 | I32 items; |
2015 | #ifdef USE_THREADS |
2016 | av = (AV*)curpad[0]; |
2017 | #else |
2018 | av = GvAV(defgv); |
2019 | #endif /* USE_THREADS */ |
2020 | items = AvFILL(av) + 1; |
67955e0c |
2021 | |
2022 | if (items) { |
2023 | /* Mark is at the end of the stack. */ |
2024 | EXTEND(sp, items); |
2025 | Copy(AvARRAY(av), sp + 1, items, SV*); |
2026 | sp += items; |
2027 | PUTBACK ; |
2028 | } |
2029 | } |
2030 | if (curcopdb) { /* We assume that the first |
2031 | XSUB in &DB::sub is the |
2032 | called one. */ |
2033 | SAVESPTR(curcop); |
2034 | curcop = curcopdb; |
2035 | curcopdb = NULL; |
2036 | } |
2037 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
2038 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
2039 | |
2040 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
2041 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
2042 | if (markix > stack_sp - stack_base) |
2043 | *(stack_base + markix) = &sv_undef; |
2044 | else |
2045 | *(stack_base + markix) = *stack_sp; |
2046 | stack_sp = stack_base + markix; |
2047 | } |
a0d0e21e |
2048 | } |
2049 | LEAVE; |
2050 | return NORMAL; |
2051 | } |
2052 | else { |
2053 | dMARK; |
2054 | register I32 items = SP - MARK; |
a0d0e21e |
2055 | AV* padlist = CvPADLIST(cv); |
2056 | SV** svp = AvARRAY(padlist); |
2057 | push_return(op->op_next); |
2058 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2059 | PUSHSUB(cx); |
2060 | CvDEPTH(cv)++; |
2061 | if (CvDEPTH(cv) < 2) |
2062 | (void)SvREFCNT_inc(cv); |
2063 | else { /* save temporaries on recursion? */ |
5f05dabc |
2064 | if (CvDEPTH(cv) == 100 && dowarn |
44a8e56a |
2065 | && !(perldb && cv == GvCV(DBsub))) |
2066 | sub_crush_depth(cv); |
a0d0e21e |
2067 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
2068 | AV *av; |
2069 | AV *newpad = newAV(); |
4aa0a1f7 |
2070 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
2071 | I32 ix = AvFILL((AV*)svp[1]); |
2072 | svp = AvARRAY(svp[0]); |
748a9306 |
2073 | for ( ;ix > 0; ix--) { |
a0d0e21e |
2074 | if (svp[ix] != &sv_undef) { |
748a9306 |
2075 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2076 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2077 | || *name == '&') /* anonymous code? */ |
2078 | { |
2079 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2080 | } |
2081 | else { /* our own lexical */ |
2082 | if (*name == '@') |
2083 | av_store(newpad, ix, sv = (SV*)newAV()); |
2084 | else if (*name == '%') |
2085 | av_store(newpad, ix, sv = (SV*)newHV()); |
2086 | else |
2087 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2088 | SvPADMY_on(sv); |
2089 | } |
a0d0e21e |
2090 | } |
2091 | else { |
748a9306 |
2092 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2093 | SvPADTMP_on(sv); |
2094 | } |
2095 | } |
2096 | av = newAV(); /* will be @_ */ |
2097 | av_extend(av, 0); |
2098 | av_store(newpad, 0, (SV*)av); |
2099 | AvFLAGS(av) = AVf_REIFY; |
2100 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
2101 | AvFILL(padlist) = CvDEPTH(cv); |
2102 | svp = AvARRAY(padlist); |
2103 | } |
2104 | } |
6d4ff0d2 |
2105 | #ifdef USE_THREADS |
2106 | if (!hasargs) { |
a0d0e21e |
2107 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 |
2108 | |
2109 | items = AvFILL(av) + 1; |
2110 | if (items) { |
2111 | /* Mark is at the end of the stack. */ |
2112 | EXTEND(sp, items); |
2113 | Copy(AvARRAY(av), sp + 1, items, SV*); |
2114 | sp += items; |
2115 | PUTBACK ; |
2116 | } |
2117 | } |
2118 | #endif /* USE_THREADS */ |
2119 | SAVESPTR(curpad); |
2120 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
2121 | #ifndef USE_THREADS |
2122 | if (hasargs) |
2123 | #endif /* USE_THREADS */ |
2124 | { |
2125 | AV* av; |
a0d0e21e |
2126 | SV** ary; |
2127 | |
0f15f207 |
2128 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2129 | "%p entersub preparing @_\n", thr)); |
6d4ff0d2 |
2130 | av = (AV*)curpad[0]; |
a0d0e21e |
2131 | if (AvREAL(av)) { |
2132 | av_clear(av); |
2133 | AvREAL_off(av); |
2134 | } |
6d4ff0d2 |
2135 | #ifndef USE_THREADS |
a0d0e21e |
2136 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 |
2137 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2138 | #endif /* USE_THREADS */ |
2139 | cx->blk_sub.argarray = av; |
a0d0e21e |
2140 | ++MARK; |
2141 | |
2142 | if (items > AvMAX(av) + 1) { |
2143 | ary = AvALLOC(av); |
2144 | if (AvARRAY(av) != ary) { |
2145 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2146 | SvPVX(av) = (char*)ary; |
2147 | } |
2148 | if (items > AvMAX(av) + 1) { |
2149 | AvMAX(av) = items - 1; |
2150 | Renew(ary,items,SV*); |
2151 | AvALLOC(av) = ary; |
2152 | SvPVX(av) = (char*)ary; |
2153 | } |
2154 | } |
2155 | Copy(MARK,AvARRAY(av),items,SV*); |
2156 | AvFILL(av) = items - 1; |
2157 | |
2158 | while (items--) { |
2159 | if (*MARK) |
2160 | SvTEMP_off(*MARK); |
2161 | MARK++; |
2162 | } |
2163 | } |
0f15f207 |
2164 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2165 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
a0d0e21e |
2166 | RETURNOP(CvSTART(cv)); |
2167 | } |
2168 | } |
2169 | |
44a8e56a |
2170 | void |
2171 | sub_crush_depth(cv) |
2172 | CV* cv; |
2173 | { |
2174 | if (CvANON(cv)) |
2175 | warn("Deep recursion on anonymous subroutine"); |
2176 | else { |
2177 | SV* tmpstr = sv_newmortal(); |
2178 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
2179 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
2180 | } |
2181 | } |
2182 | |
a0d0e21e |
2183 | PP(pp_aelem) |
2184 | { |
2185 | dSP; |
2186 | SV** svp; |
748a9306 |
2187 | I32 elem = POPi; |
68dc0745 |
2188 | AV* av = (AV*)POPs; |
2189 | U32 lval = op->op_flags & OPf_MOD; |
2190 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
a0d0e21e |
2191 | |
748a9306 |
2192 | if (elem > 0) |
2193 | elem -= curcop->cop_arybase; |
a0d0e21e |
2194 | if (SvTYPE(av) != SVt_PVAV) |
2195 | RETPUSHUNDEF; |
68dc0745 |
2196 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2197 | if (lval) { |
68dc0745 |
2198 | if (!svp || *svp == &sv_undef) { |
2199 | SV* lv; |
2200 | if (!defer) |
2201 | DIE(no_aelem, elem); |
2202 | lv = sv_newmortal(); |
2203 | sv_upgrade(lv, SVt_PVLV); |
2204 | LvTYPE(lv) = 'y'; |
2205 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2206 | LvTARG(lv) = SvREFCNT_inc(av); |
2207 | LvTARGOFF(lv) = elem; |
2208 | LvTARGLEN(lv) = 1; |
2209 | PUSHs(lv); |
2210 | RETURN; |
2211 | } |
a0d0e21e |
2212 | if (op->op_private & OPpLVAL_INTRO) |
2213 | save_svref(svp); |
5f05dabc |
2214 | else if (op->op_private & OPpDEREF) |
68dc0745 |
2215 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
2216 | } |
2217 | PUSHs(svp ? *svp : &sv_undef); |
2218 | RETURN; |
2219 | } |
2220 | |
02a9e968 |
2221 | void |
68dc0745 |
2222 | vivify_ref(sv, to_what) |
02a9e968 |
2223 | SV* sv; |
68dc0745 |
2224 | U32 to_what; |
02a9e968 |
2225 | { |
2226 | if (SvGMAGICAL(sv)) |
2227 | mg_get(sv); |
2228 | if (!SvOK(sv)) { |
2229 | if (SvREADONLY(sv)) |
2230 | croak(no_modify); |
5f05dabc |
2231 | if (SvTYPE(sv) < SVt_RV) |
2232 | sv_upgrade(sv, SVt_RV); |
2233 | else if (SvTYPE(sv) >= SVt_PV) { |
2234 | (void)SvOOK_off(sv); |
2235 | Safefree(SvPVX(sv)); |
2236 | SvLEN(sv) = SvCUR(sv) = 0; |
2237 | } |
68dc0745 |
2238 | switch (to_what) { |
5f05dabc |
2239 | case OPpDEREF_SV: |
2240 | SvRV(sv) = newSV(0); |
2241 | break; |
2242 | case OPpDEREF_AV: |
2243 | SvRV(sv) = (SV*)newAV(); |
2244 | break; |
2245 | case OPpDEREF_HV: |
2246 | SvRV(sv) = (SV*)newHV(); |
2247 | break; |
2248 | } |
02a9e968 |
2249 | SvROK_on(sv); |
2250 | SvSETMAGIC(sv); |
2251 | } |
2252 | } |
2253 | |
a0d0e21e |
2254 | PP(pp_method) |
2255 | { |
2256 | dSP; |
2257 | SV* sv; |
2258 | SV* ob; |
2259 | GV* gv; |
56304f61 |
2260 | HV* stash; |
2261 | char* name; |
ac91690f |
2262 | char* packname; |
2263 | STRLEN packlen; |
a0d0e21e |
2264 | |
56304f61 |
2265 | name = SvPV(TOPs, na); |
a0d0e21e |
2266 | sv = *(stack_base + TOPMARK + 1); |
2267 | |
16d20bd9 |
2268 | if (SvGMAGICAL(sv)) |
2269 | mg_get(sv); |
a0d0e21e |
2270 | if (SvROK(sv)) |
16d20bd9 |
2271 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2272 | else { |
2273 | GV* iogv; |
a0d0e21e |
2274 | |
56304f61 |
2275 | packname = Nullch; |
a0d0e21e |
2276 | if (!SvOK(sv) || |
56304f61 |
2277 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2278 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2279 | !(ob=(SV*)GvIO(iogv))) |
2280 | { |
56304f61 |
2281 | if (!packname || !isIDFIRST(*packname)) |
ac91690f |
2282 | DIE("Can't call method \"%s\" without a package or object reference", name); |
56304f61 |
2283 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2284 | goto fetch; |
a0d0e21e |
2285 | } |
ac91690f |
2286 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2287 | } |
2288 | |
ac91690f |
2289 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e |
2290 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2291 | |
56304f61 |
2292 | stash = SvSTASH(ob); |
a0d0e21e |
2293 | |
ac91690f |
2294 | fetch: |
ac91690f |
2295 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2296 | if (!gv) { |
2297 | char* leaf = name; |
2298 | char* sep = Nullch; |
2299 | char* p; |
2300 | |
2301 | for (p = name; *p; p++) { |
2302 | if (*p == '\'') |
2303 | sep = p, leaf = p + 1; |
2304 | else if (*p == ':' && *(p + 1) == ':') |
2305 | sep = p, leaf = p + 2; |
2306 | } |
2307 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
2308 | packname = HvNAME(sep ? curcop->cop_stash : stash); |
2309 | packlen = strlen(packname); |
2310 | } |
2311 | else { |
2312 | packname = name; |
2313 | packlen = sep - name; |
2314 | } |
2315 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", |
2316 | leaf, (int)packlen, packname); |
2317 | } |
8ebc5c01 |
2318 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2319 | RETURN; |
2320 | } |