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 | |
8ac85365 |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> |
23 | #endif |
24 | |
a0d0e21e |
25 | /* Hot code. */ |
26 | |
11343788 |
27 | #ifdef USE_THREADS |
28 | static void |
8ac85365 |
29 | unset_cvowner(void *cvarg) |
11343788 |
30 | { |
31 | register CV* cv = (CV *) cvarg; |
32 | #ifdef DEBUGGING |
33 | dTHR; |
34 | #endif /* DEBUGGING */ |
35 | |
1fd28e87 |
36 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
37 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 |
38 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
39 | DEBUG_L(if (CvDEPTH(cv) != 0) |
40 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
41 | CvDEPTH(cv));); |
11343788 |
42 | assert(thr == CvOWNER(cv)); |
43 | CvOWNER(cv) = 0; |
11343788 |
44 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
45 | SvREFCNT_dec(cv); |
46 | } |
11343788 |
47 | #endif /* USE_THREADS */ |
48 | |
a0d0e21e |
49 | PP(pp_const) |
50 | { |
4e35701f |
51 | djSP; |
a0d0e21e |
52 | XPUSHs(cSVOP->op_sv); |
53 | RETURN; |
54 | } |
55 | |
56 | PP(pp_nextstate) |
57 | { |
58 | curcop = (COP*)op; |
59 | TAINT_NOT; /* Each statement is presumed innocent */ |
60 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
61 | FREETMPS; |
62 | return NORMAL; |
63 | } |
64 | |
65 | PP(pp_gvsv) |
66 | { |
4e35701f |
67 | djSP; |
a0d0e21e |
68 | EXTEND(sp,1); |
69 | if (op->op_private & OPpLVAL_INTRO) |
70 | PUSHs(save_scalar(cGVOP->op_gv)); |
71 | else |
72 | PUSHs(GvSV(cGVOP->op_gv)); |
73 | RETURN; |
74 | } |
75 | |
76 | PP(pp_null) |
77 | { |
78 | return NORMAL; |
79 | } |
80 | |
81 | PP(pp_pushmark) |
82 | { |
83 | PUSHMARK(stack_sp); |
84 | return NORMAL; |
85 | } |
86 | |
87 | PP(pp_stringify) |
88 | { |
4e35701f |
89 | djSP; dTARGET; |
a0d0e21e |
90 | STRLEN len; |
91 | char *s; |
92 | s = SvPV(TOPs,len); |
93 | sv_setpvn(TARG,s,len); |
94 | SETTARG; |
95 | RETURN; |
96 | } |
97 | |
98 | PP(pp_gv) |
99 | { |
4e35701f |
100 | djSP; |
a0d0e21e |
101 | XPUSHs((SV*)cGVOP->op_gv); |
102 | RETURN; |
103 | } |
104 | |
105 | PP(pp_and) |
106 | { |
4e35701f |
107 | djSP; |
a0d0e21e |
108 | if (!SvTRUE(TOPs)) |
109 | RETURN; |
110 | else { |
111 | --SP; |
112 | RETURNOP(cLOGOP->op_other); |
113 | } |
114 | } |
115 | |
116 | PP(pp_sassign) |
117 | { |
4e35701f |
118 | djSP; dPOPTOPssrl; |
748a9306 |
119 | MAGIC *mg; |
120 | |
a0d0e21e |
121 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
122 | SV *temp; |
123 | temp = left; left = right; right = temp; |
124 | } |
bbce6d69 |
125 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
126 | TAINT_NOT; |
54310121 |
127 | SvSetMagicSV(right, left); |
a0d0e21e |
128 | SETs(right); |
129 | RETURN; |
130 | } |
131 | |
132 | PP(pp_cond_expr) |
133 | { |
4e35701f |
134 | djSP; |
a0d0e21e |
135 | if (SvTRUEx(POPs)) |
136 | RETURNOP(cCONDOP->op_true); |
137 | else |
138 | RETURNOP(cCONDOP->op_false); |
139 | } |
140 | |
141 | PP(pp_unstack) |
142 | { |
143 | I32 oldsave; |
144 | TAINT_NOT; /* Each statement is presumed innocent */ |
145 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
146 | FREETMPS; |
147 | oldsave = scopestack[scopestack_ix - 1]; |
148 | LEAVE_SCOPE(oldsave); |
149 | return NORMAL; |
150 | } |
151 | |
a0d0e21e |
152 | PP(pp_concat) |
153 | { |
4e35701f |
154 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
155 | { |
156 | dPOPTOPssrl; |
a0d0e21e |
157 | STRLEN len; |
158 | char *s; |
159 | if (TARG != left) { |
160 | s = SvPV(left,len); |
161 | sv_setpvn(TARG,s,len); |
162 | } |
c07a80fd |
163 | else if (SvGMAGICAL(TARG)) |
164 | mg_get(TARG); |
7a4c00b4 |
165 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
166 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
167 | s = SvPV_force(TARG, len); |
4633a7c4 |
168 | } |
a0d0e21e |
169 | s = SvPV(right,len); |
68dc0745 |
170 | if (SvOK(TARG)) |
171 | sv_catpvn(TARG,s,len); |
172 | else |
173 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
174 | SETTARG; |
175 | RETURN; |
748a9306 |
176 | } |
a0d0e21e |
177 | } |
178 | |
179 | PP(pp_padsv) |
180 | { |
4e35701f |
181 | djSP; dTARGET; |
a0d0e21e |
182 | XPUSHs(TARG); |
4633a7c4 |
183 | if (op->op_flags & OPf_MOD) { |
184 | if (op->op_private & OPpLVAL_INTRO) |
185 | SAVECLEARSV(curpad[op->op_targ]); |
5f05dabc |
186 | else if (op->op_private & OPpDEREF) |
54310121 |
187 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
4633a7c4 |
188 | } |
a0d0e21e |
189 | RETURN; |
190 | } |
191 | |
192 | PP(pp_readline) |
193 | { |
194 | last_in_gv = (GV*)(*stack_sp--); |
195 | return do_readline(); |
196 | } |
197 | |
198 | PP(pp_eq) |
199 | { |
4e35701f |
200 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
201 | { |
202 | dPOPnv; |
54310121 |
203 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
204 | RETURN; |
205 | } |
206 | } |
207 | |
208 | PP(pp_preinc) |
209 | { |
4e35701f |
210 | djSP; |
68dc0745 |
211 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a |
212 | croak(no_modify); |
55497cff |
213 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
214 | SvIVX(TOPs) != IV_MAX) |
215 | { |
748a9306 |
216 | ++SvIVX(TOPs); |
55497cff |
217 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
218 | } |
219 | else |
220 | sv_inc(TOPs); |
a0d0e21e |
221 | SvSETMAGIC(TOPs); |
222 | return NORMAL; |
223 | } |
224 | |
225 | PP(pp_or) |
226 | { |
4e35701f |
227 | djSP; |
a0d0e21e |
228 | if (SvTRUE(TOPs)) |
229 | RETURN; |
230 | else { |
231 | --SP; |
232 | RETURNOP(cLOGOP->op_other); |
233 | } |
234 | } |
235 | |
236 | PP(pp_add) |
237 | { |
4e35701f |
238 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
239 | { |
7a4c00b4 |
240 | dPOPTOPnnrl_ul; |
a0d0e21e |
241 | SETn( left + right ); |
242 | RETURN; |
243 | } |
244 | } |
245 | |
246 | PP(pp_aelemfast) |
247 | { |
4e35701f |
248 | djSP; |
a0d0e21e |
249 | AV *av = GvAV((GV*)cSVOP->op_sv); |
250 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
251 | PUSHs(svp ? *svp : &sv_undef); |
252 | RETURN; |
253 | } |
254 | |
255 | PP(pp_join) |
256 | { |
4e35701f |
257 | djSP; dMARK; dTARGET; |
a0d0e21e |
258 | MARK++; |
259 | do_join(TARG, *MARK, MARK, SP); |
260 | SP = MARK; |
261 | SETs(TARG); |
262 | RETURN; |
263 | } |
264 | |
265 | PP(pp_pushre) |
266 | { |
4e35701f |
267 | djSP; |
44a8e56a |
268 | #ifdef DEBUGGING |
269 | /* |
270 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
271 | * will be enough to hold an OP*. |
272 | */ |
273 | SV* sv = sv_newmortal(); |
274 | sv_upgrade(sv, SVt_PVLV); |
275 | LvTYPE(sv) = '/'; |
276 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
277 | XPUSHs(sv); |
278 | #else |
a0d0e21e |
279 | XPUSHs((SV*)op); |
44a8e56a |
280 | #endif |
a0d0e21e |
281 | RETURN; |
282 | } |
283 | |
284 | /* Oversized hot code. */ |
285 | |
286 | PP(pp_print) |
287 | { |
4e35701f |
288 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
289 | GV *gv; |
290 | IO *io; |
760ac839 |
291 | register PerlIO *fp; |
236988e4 |
292 | MAGIC *mg; |
a0d0e21e |
293 | |
294 | if (op->op_flags & OPf_STACKED) |
295 | gv = (GV*)*++MARK; |
296 | else |
297 | gv = defoutgv; |
236988e4 |
298 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 |
299 | if (MARK == ORIGMARK) { |
300 | EXTEND(SP, 1); |
301 | ++MARK; |
302 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
303 | ++SP; |
304 | } |
305 | PUSHMARK(MARK - 1); |
236988e4 |
306 | *MARK = mg->mg_obj; |
68dc0745 |
307 | PUTBACK; |
236988e4 |
308 | ENTER; |
309 | perl_call_method("PRINT", G_SCALAR); |
310 | LEAVE; |
311 | SPAGAIN; |
68dc0745 |
312 | MARK = ORIGMARK + 1; |
313 | *MARK = *SP; |
314 | SP = MARK; |
236988e4 |
315 | RETURN; |
316 | } |
a0d0e21e |
317 | if (!(io = GvIO(gv))) { |
748a9306 |
318 | if (dowarn) { |
319 | SV* sv = sv_newmortal(); |
4f732624 |
320 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
321 | warn("Filehandle %s never opened", SvPV(sv,na)); |
322 | } |
323 | |
324 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
325 | goto just_say_no; |
326 | } |
327 | else if (!(fp = IoOFP(io))) { |
328 | if (dowarn) { |
748a9306 |
329 | SV* sv = sv_newmortal(); |
4f732624 |
330 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
331 | if (IoIFP(io)) |
748a9306 |
332 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
333 | else |
748a9306 |
334 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
335 | } |
748a9306 |
336 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
337 | goto just_say_no; |
338 | } |
339 | else { |
340 | MARK++; |
341 | if (ofslen) { |
342 | while (MARK <= SP) { |
343 | if (!do_print(*MARK, fp)) |
344 | break; |
345 | MARK++; |
346 | if (MARK <= SP) { |
760ac839 |
347 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
348 | MARK--; |
349 | break; |
350 | } |
351 | } |
352 | } |
353 | } |
354 | else { |
355 | while (MARK <= SP) { |
356 | if (!do_print(*MARK, fp)) |
357 | break; |
358 | MARK++; |
359 | } |
360 | } |
361 | if (MARK <= SP) |
362 | goto just_say_no; |
363 | else { |
364 | if (orslen) |
760ac839 |
365 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
366 | goto just_say_no; |
367 | |
368 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
369 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
370 | goto just_say_no; |
371 | } |
372 | } |
373 | SP = ORIGMARK; |
374 | PUSHs(&sv_yes); |
375 | RETURN; |
376 | |
377 | just_say_no: |
378 | SP = ORIGMARK; |
379 | PUSHs(&sv_undef); |
380 | RETURN; |
381 | } |
382 | |
383 | PP(pp_rv2av) |
384 | { |
4e35701f |
385 | djSP; dPOPss; |
a0d0e21e |
386 | AV *av; |
387 | |
388 | if (SvROK(sv)) { |
389 | wasref: |
390 | av = (AV*)SvRV(sv); |
391 | if (SvTYPE(av) != SVt_PVAV) |
392 | DIE("Not an ARRAY reference"); |
a0d0e21e |
393 | if (op->op_flags & OPf_REF) { |
394 | PUSHs((SV*)av); |
395 | RETURN; |
396 | } |
397 | } |
398 | else { |
399 | if (SvTYPE(sv) == SVt_PVAV) { |
400 | av = (AV*)sv; |
401 | if (op->op_flags & OPf_REF) { |
402 | PUSHs((SV*)av); |
403 | RETURN; |
404 | } |
405 | } |
406 | else { |
67955e0c |
407 | GV *gv; |
408 | |
a0d0e21e |
409 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
410 | char *sym; |
411 | |
a0d0e21e |
412 | if (SvGMAGICAL(sv)) { |
413 | mg_get(sv); |
414 | if (SvROK(sv)) |
415 | goto wasref; |
416 | } |
417 | if (!SvOK(sv)) { |
418 | if (op->op_flags & OPf_REF || |
419 | op->op_private & HINT_STRICT_REFS) |
420 | DIE(no_usym, "an ARRAY"); |
d83e6520 |
421 | if (dowarn) |
422 | warn(warn_uninit); |
4633a7c4 |
423 | if (GIMME == G_ARRAY) |
424 | RETURN; |
a0d0e21e |
425 | RETPUSHUNDEF; |
426 | } |
748a9306 |
427 | sym = SvPV(sv,na); |
a0d0e21e |
428 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
429 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
430 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
431 | } else { |
432 | gv = (GV*)sv; |
a0d0e21e |
433 | } |
67955e0c |
434 | av = GvAVn(gv); |
a0d0e21e |
435 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
436 | av = save_ary(gv); |
a0d0e21e |
437 | if (op->op_flags & OPf_REF) { |
438 | PUSHs((SV*)av); |
439 | RETURN; |
440 | } |
441 | } |
442 | } |
443 | |
444 | if (GIMME == G_ARRAY) { |
445 | I32 maxarg = AvFILL(av) + 1; |
446 | EXTEND(SP, maxarg); |
447 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
448 | SP += maxarg; |
449 | } |
450 | else { |
451 | dTARGET; |
452 | I32 maxarg = AvFILL(av) + 1; |
453 | PUSHi(maxarg); |
454 | } |
455 | RETURN; |
456 | } |
457 | |
458 | PP(pp_rv2hv) |
459 | { |
4e35701f |
460 | djSP; dTOPss; |
a0d0e21e |
461 | HV *hv; |
462 | |
463 | if (SvROK(sv)) { |
464 | wasref: |
465 | hv = (HV*)SvRV(sv); |
c750a3ec |
466 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e |
467 | DIE("Not a HASH reference"); |
a0d0e21e |
468 | if (op->op_flags & OPf_REF) { |
469 | SETs((SV*)hv); |
470 | RETURN; |
471 | } |
472 | } |
473 | else { |
c750a3ec |
474 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
475 | hv = (HV*)sv; |
476 | if (op->op_flags & OPf_REF) { |
477 | SETs((SV*)hv); |
478 | RETURN; |
479 | } |
480 | } |
481 | else { |
67955e0c |
482 | GV *gv; |
483 | |
a0d0e21e |
484 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
485 | char *sym; |
486 | |
a0d0e21e |
487 | if (SvGMAGICAL(sv)) { |
488 | mg_get(sv); |
489 | if (SvROK(sv)) |
490 | goto wasref; |
491 | } |
492 | if (!SvOK(sv)) { |
493 | if (op->op_flags & OPf_REF || |
494 | op->op_private & HINT_STRICT_REFS) |
495 | DIE(no_usym, "a HASH"); |
d83e6520 |
496 | if (dowarn) |
497 | warn(warn_uninit); |
4633a7c4 |
498 | if (GIMME == G_ARRAY) { |
499 | SP--; |
500 | RETURN; |
501 | } |
a0d0e21e |
502 | RETSETUNDEF; |
503 | } |
748a9306 |
504 | sym = SvPV(sv,na); |
a0d0e21e |
505 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
506 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
507 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
508 | } else { |
509 | gv = (GV*)sv; |
a0d0e21e |
510 | } |
67955e0c |
511 | hv = GvHVn(gv); |
a0d0e21e |
512 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
513 | hv = save_hash(gv); |
a0d0e21e |
514 | if (op->op_flags & OPf_REF) { |
515 | SETs((SV*)hv); |
516 | RETURN; |
517 | } |
518 | } |
519 | } |
520 | |
521 | if (GIMME == G_ARRAY) { /* array wanted */ |
522 | *stack_sp = (SV*)hv; |
523 | return do_kv(ARGS); |
524 | } |
525 | else { |
526 | dTARGET; |
c750a3ec |
527 | /* This bit is OK even when hv is really an AV */ |
46fc3d4c |
528 | if (HvFILL(hv)) |
529 | sv_setpvf(TARG, "%ld/%ld", |
530 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
531 | else |
532 | sv_setiv(TARG, 0); |
c750a3ec |
533 | |
a0d0e21e |
534 | SETTARG; |
535 | RETURN; |
536 | } |
537 | } |
538 | |
539 | PP(pp_aassign) |
540 | { |
4e35701f |
541 | djSP; |
a0d0e21e |
542 | SV **lastlelem = stack_sp; |
543 | SV **lastrelem = stack_base + POPMARK; |
544 | SV **firstrelem = stack_base + POPMARK + 1; |
545 | SV **firstlelem = lastrelem + 1; |
546 | |
547 | register SV **relem; |
548 | register SV **lelem; |
549 | |
550 | register SV *sv; |
551 | register AV *ary; |
552 | |
54310121 |
553 | I32 gimme; |
a0d0e21e |
554 | HV *hash; |
555 | I32 i; |
556 | int magic; |
557 | |
558 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
559 | |
560 | /* If there's a common identifier on both sides we have to take |
561 | * special care that assigning the identifier on the left doesn't |
562 | * clobber a value on the right that's used later in the list. |
563 | */ |
564 | if (op->op_private & OPpASSIGN_COMMON) { |
565 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
566 | /*SUPPRESS 560*/ |
a1f49e72 |
567 | if (sv = *relem) { |
568 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
569 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
570 | } |
a0d0e21e |
571 | } |
572 | } |
573 | |
574 | relem = firstrelem; |
575 | lelem = firstlelem; |
576 | ary = Null(AV*); |
577 | hash = Null(HV*); |
578 | while (lelem <= lastlelem) { |
bbce6d69 |
579 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
580 | sv = *lelem++; |
581 | switch (SvTYPE(sv)) { |
582 | case SVt_PVAV: |
583 | ary = (AV*)sv; |
748a9306 |
584 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
585 | |
586 | av_clear(ary); |
7e42bd57 |
587 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
588 | i = 0; |
589 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
590 | SV **didstore; |
a0d0e21e |
591 | sv = NEWSV(28,0); |
592 | assert(*relem); |
593 | sv_setsv(sv,*relem); |
594 | *(relem++) = sv; |
5117ca91 |
595 | didstore = av_store(ary,i++,sv); |
596 | if (magic) { |
fb73857a |
597 | if (SvSMAGICAL(sv)) |
598 | mg_set(sv); |
5117ca91 |
599 | if (!didstore) |
600 | SvREFCNT_dec(sv); |
601 | } |
bbce6d69 |
602 | TAINT_NOT; |
a0d0e21e |
603 | } |
604 | break; |
605 | case SVt_PVHV: { |
a0d0e21e |
606 | SV *tmpstr; |
607 | |
608 | hash = (HV*)sv; |
748a9306 |
609 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
610 | hv_clear(hash); |
611 | |
612 | while (relem < lastrelem) { /* gobble up all the rest */ |
613 | STRLEN len; |
5117ca91 |
614 | HE *didstore; |
4633a7c4 |
615 | if (*relem) |
a0d0e21e |
616 | sv = *(relem++); |
4633a7c4 |
617 | else |
a0d0e21e |
618 | sv = &sv_no, relem++; |
a0d0e21e |
619 | tmpstr = NEWSV(29,0); |
620 | if (*relem) |
621 | sv_setsv(tmpstr,*relem); /* value */ |
622 | *(relem++) = tmpstr; |
5117ca91 |
623 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
624 | if (magic) { |
fb73857a |
625 | if (SvSMAGICAL(tmpstr)) |
626 | mg_set(tmpstr); |
5117ca91 |
627 | if (!didstore) |
628 | SvREFCNT_dec(tmpstr); |
629 | } |
bbce6d69 |
630 | TAINT_NOT; |
8e07c86e |
631 | } |
fb73857a |
632 | if (relem == lastrelem && dowarn) |
760ac839 |
633 | warn("Odd number of elements in hash list"); |
a0d0e21e |
634 | } |
635 | break; |
636 | default: |
637 | if (SvTHINKFIRST(sv)) { |
638 | if (SvREADONLY(sv) && curcop != &compiling) { |
639 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
640 | DIE(no_modify); |
641 | if (relem <= lastrelem) |
642 | relem++; |
643 | break; |
644 | } |
645 | if (SvROK(sv)) |
646 | sv_unref(sv); |
647 | } |
648 | if (relem <= lastrelem) { |
649 | sv_setsv(sv, *relem); |
650 | *(relem++) = sv; |
651 | } |
652 | else |
653 | sv_setsv(sv, &sv_undef); |
654 | SvSETMAGIC(sv); |
655 | break; |
656 | } |
657 | } |
658 | if (delaymagic & ~DM_DELAY) { |
659 | if (delaymagic & DM_UID) { |
660 | #ifdef HAS_SETRESUID |
661 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
662 | #else |
663 | # ifdef HAS_SETREUID |
a0d0e21e |
664 | (void)setreuid(uid,euid); |
56febc5e |
665 | # else |
666 | # ifdef HAS_SETRUID |
a0d0e21e |
667 | if ((delaymagic & DM_UID) == DM_RUID) { |
668 | (void)setruid(uid); |
748a9306 |
669 | delaymagic &= ~DM_RUID; |
a0d0e21e |
670 | } |
56febc5e |
671 | # endif /* HAS_SETRUID */ |
672 | # ifdef HAS_SETEUID |
a0d0e21e |
673 | if ((delaymagic & DM_UID) == DM_EUID) { |
674 | (void)seteuid(uid); |
748a9306 |
675 | delaymagic &= ~DM_EUID; |
a0d0e21e |
676 | } |
56febc5e |
677 | # endif /* HAS_SETEUID */ |
a0d0e21e |
678 | if (delaymagic & DM_UID) { |
679 | if (uid != euid) |
680 | DIE("No setreuid available"); |
681 | (void)setuid(uid); |
682 | } |
56febc5e |
683 | # endif /* HAS_SETREUID */ |
684 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
685 | uid = (int)getuid(); |
686 | euid = (int)geteuid(); |
687 | } |
688 | if (delaymagic & DM_GID) { |
689 | #ifdef HAS_SETRESGID |
690 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
691 | #else |
692 | # ifdef HAS_SETREGID |
a0d0e21e |
693 | (void)setregid(gid,egid); |
56febc5e |
694 | # else |
695 | # ifdef HAS_SETRGID |
a0d0e21e |
696 | if ((delaymagic & DM_GID) == DM_RGID) { |
697 | (void)setrgid(gid); |
748a9306 |
698 | delaymagic &= ~DM_RGID; |
a0d0e21e |
699 | } |
56febc5e |
700 | # endif /* HAS_SETRGID */ |
701 | # ifdef HAS_SETEGID |
a0d0e21e |
702 | if ((delaymagic & DM_GID) == DM_EGID) { |
703 | (void)setegid(gid); |
748a9306 |
704 | delaymagic &= ~DM_EGID; |
a0d0e21e |
705 | } |
56febc5e |
706 | # endif /* HAS_SETEGID */ |
a0d0e21e |
707 | if (delaymagic & DM_GID) { |
708 | if (gid != egid) |
709 | DIE("No setregid available"); |
710 | (void)setgid(gid); |
711 | } |
56febc5e |
712 | # endif /* HAS_SETREGID */ |
713 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
714 | gid = (int)getgid(); |
715 | egid = (int)getegid(); |
716 | } |
4633a7c4 |
717 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
718 | } |
719 | delaymagic = 0; |
54310121 |
720 | |
721 | gimme = GIMME_V; |
722 | if (gimme == G_VOID) |
723 | SP = firstrelem - 1; |
724 | else if (gimme == G_SCALAR) { |
725 | dTARGET; |
726 | SP = firstrelem; |
727 | SETi(lastrelem - firstrelem + 1); |
728 | } |
729 | else { |
a0d0e21e |
730 | if (ary || hash) |
731 | SP = lastrelem; |
732 | else |
733 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
734 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
735 | while (relem <= SP) |
0c8c7a05 |
736 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
737 | } |
54310121 |
738 | RETURN; |
a0d0e21e |
739 | } |
740 | |
741 | PP(pp_match) |
742 | { |
4e35701f |
743 | djSP; dTARG; |
a0d0e21e |
744 | register PMOP *pm = cPMOP; |
745 | register char *t; |
746 | register char *s; |
747 | char *strend; |
748 | I32 global; |
749 | I32 safebase; |
750 | char *truebase; |
751 | register REGEXP *rx = pm->op_pmregexp; |
752 | I32 gimme = GIMME; |
753 | STRLEN len; |
748a9306 |
754 | I32 minmatch = 0; |
4633a7c4 |
755 | I32 oldsave = savestack_ix; |
f86702cc |
756 | I32 update_minmatch = 1; |
c277df42 |
757 | SV *screamer; |
a0d0e21e |
758 | |
759 | if (op->op_flags & OPf_STACKED) |
760 | TARG = POPs; |
761 | else { |
54b9620d |
762 | TARG = DEFSV; |
a0d0e21e |
763 | EXTEND(SP,1); |
764 | } |
c277df42 |
765 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
766 | s = SvPV(TARG, len); |
767 | strend = s + len; |
768 | if (!s) |
769 | DIE("panic: do_match"); |
9212bbba |
770 | TAINT_NOT; |
a0d0e21e |
771 | |
772 | if (pm->op_pmflags & PMf_USED) { |
c277df42 |
773 | failure: |
a0d0e21e |
774 | if (gimme == G_ARRAY) |
775 | RETURN; |
776 | RETPUSHNO; |
777 | } |
778 | |
779 | if (!rx->prelen && curpm) { |
780 | pm = curpm; |
781 | rx = pm->op_pmregexp; |
782 | } |
c277df42 |
783 | if (rx->minlen > len) goto failure; |
784 | |
785 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
786 | && SvTYPE(rx->check_substr) == SVt_PVBM |
787 | && SvVALID(rx->check_substr)) |
788 | ? TARG : Nullsv); |
a0d0e21e |
789 | truebase = t = s; |
790 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
791 | rx->startp[0] = 0; |
792 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
793 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
794 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
795 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
796 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
797 | update_minmatch = 0; |
748a9306 |
798 | } |
a0d0e21e |
799 | } |
800 | } |
748a9306 |
801 | if (!rx->nparens && !global) |
802 | gimme = G_SCALAR; /* accidental array context? */ |
137443ea |
803 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
804 | && !sawampersand); |
c277df42 |
805 | safebase = safebase ? 0 : REXEC_COPY_STR ; |
a0d0e21e |
806 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
807 | SAVEINT(multiline); |
808 | multiline = pm->op_pmflags & PMf_MULTILINE; |
809 | } |
810 | |
811 | play_it_again: |
812 | if (global && rx->startp[0]) { |
813 | t = s = rx->endp[0]; |
51aa1f50 |
814 | if ((s + rx->minlen) > strend) |
a0d0e21e |
815 | goto nope; |
f86702cc |
816 | if (update_minmatch++) |
817 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
818 | } |
c277df42 |
819 | if (rx->check_substr) { |
820 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ |
821 | if ( screamer ) { |
822 | I32 p = -1; |
823 | |
824 | if (screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
825 | goto nope; |
c277df42 |
826 | else if (!(s = screaminstr(TARG, rx->check_substr, |
827 | rx->check_offset_min, 0, &p, 0))) |
a0d0e21e |
828 | goto nope; |
c277df42 |
829 | else if ((rx->reganch & ROPT_CHECK_ALL) |
830 | && !sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e |
831 | goto yup; |
832 | } |
c277df42 |
833 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
834 | (unsigned char*)strend, |
835 | rx->check_substr))) |
a0d0e21e |
836 | goto nope; |
c277df42 |
837 | else if ((rx->reganch & ROPT_CHECK_ALL) && !sawampersand) |
a0d0e21e |
838 | goto yup; |
c277df42 |
839 | if (s && rx->check_offset_max < t - s) { |
840 | ++BmUSEFUL(rx->check_substr); |
841 | s -= rx->check_offset_max; |
a0d0e21e |
842 | } |
843 | else |
844 | s = t; |
845 | } |
c277df42 |
846 | /* Now checkstring is fixed, i.e. at fixed offset from the |
847 | beginning of match, and the match is anchored at s. */ |
848 | else if (!multiline) { /* Anchored near beginning of string. */ |
849 | I32 slen; |
850 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
851 | || ((slen = SvCUR(rx->check_substr)) > 1 |
852 | && memNE(SvPVX(rx->check_substr), |
853 | s + rx->check_offset_min, slen))) |
bbce6d69 |
854 | goto nope; |
a0d0e21e |
855 | } |
c277df42 |
856 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
857 | && rx->check_substr == rx->float_substr) { |
858 | SvREFCNT_dec(rx->check_substr); |
859 | rx->check_substr = Nullsv; /* opt is being useless */ |
860 | rx->float_substr = Nullsv; |
a0d0e21e |
861 | } |
862 | } |
c277df42 |
863 | if (regexec_flags(rx, s, strend, truebase, minmatch, |
864 | screamer, NULL, safebase)) |
bbce6d69 |
865 | { |
a0d0e21e |
866 | curpm = pm; |
867 | if (pm->op_pmflags & PMf_ONCE) |
868 | pm->op_pmflags |= PMf_USED; |
869 | goto gotcha; |
870 | } |
871 | else |
872 | goto ret_no; |
873 | /*NOTREACHED*/ |
874 | |
875 | gotcha: |
c277df42 |
876 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
877 | if (gimme == G_ARRAY) { |
878 | I32 iters, i, len; |
879 | |
880 | iters = rx->nparens; |
881 | if (global && !iters) |
882 | i = 1; |
883 | else |
884 | i = 0; |
c277df42 |
885 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
886 | EXTEND(SP, iters + i); |
bbce6d69 |
887 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
888 | for (i = !i; i <= iters; i++) { |
889 | PUSHs(sv_newmortal()); |
890 | /*SUPPRESS 560*/ |
891 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
892 | len = rx->endp[i] - s; |
893 | sv_setpvn(*SP, s, len); |
894 | } |
895 | } |
896 | if (global) { |
897 | truebase = rx->subbeg; |
5f05dabc |
898 | strend = rx->subend; |
a0d0e21e |
899 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
900 | ++rx->endp[0]; |
c277df42 |
901 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e |
902 | goto play_it_again; |
903 | } |
4633a7c4 |
904 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
905 | RETURN; |
906 | } |
907 | else { |
908 | if (global) { |
909 | MAGIC* mg = 0; |
910 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
911 | mg = mg_find(TARG, 'g'); |
912 | if (!mg) { |
913 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
914 | mg = mg_find(TARG, 'g'); |
915 | } |
748a9306 |
916 | if (rx->startp[0]) { |
5f05dabc |
917 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
918 | if (rx->startp[0] == rx->endp[0]) |
919 | mg->mg_flags |= MGf_MINMATCH; |
920 | else |
921 | mg->mg_flags &= ~MGf_MINMATCH; |
922 | } |
a0d0e21e |
923 | } |
4633a7c4 |
924 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
925 | RETPUSHYES; |
926 | } |
927 | |
c277df42 |
928 | yup: /* Confirmed by check_substr */ |
929 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
930 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e |
931 | curpm = pm; |
932 | if (pm->op_pmflags & PMf_ONCE) |
933 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
934 | Safefree(rx->subbase); |
935 | rx->subbase = Nullch; |
a0d0e21e |
936 | if (global) { |
937 | rx->subbeg = truebase; |
938 | rx->subend = strend; |
939 | rx->startp[0] = s; |
c277df42 |
940 | rx->endp[0] = s + SvCUR(rx->check_substr); |
a0d0e21e |
941 | goto gotcha; |
942 | } |
943 | if (sawampersand) { |
944 | char *tmps; |
945 | |
a0d0e21e |
946 | tmps = rx->subbase = savepvn(t, strend-t); |
947 | rx->subbeg = tmps; |
948 | rx->subend = tmps + (strend-t); |
949 | tmps = rx->startp[0] = tmps + (s - t); |
c277df42 |
950 | rx->endp[0] = tmps + SvCUR(rx->check_substr); |
a0d0e21e |
951 | } |
4633a7c4 |
952 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
953 | RETPUSHYES; |
954 | |
955 | nope: |
c277df42 |
956 | if (rx->check_substr) |
957 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e |
958 | |
959 | ret_no: |
c90c0ff4 |
960 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
961 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
962 | MAGIC* mg = mg_find(TARG, 'g'); |
963 | if (mg) |
964 | mg->mg_len = -1; |
965 | } |
966 | } |
4633a7c4 |
967 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
968 | if (gimme == G_ARRAY) |
969 | RETURN; |
970 | RETPUSHNO; |
971 | } |
972 | |
973 | OP * |
8ac85365 |
974 | do_readline(void) |
a0d0e21e |
975 | { |
976 | dSP; dTARGETSTACKED; |
977 | register SV *sv; |
978 | STRLEN tmplen = 0; |
979 | STRLEN offset; |
760ac839 |
980 | PerlIO *fp; |
a0d0e21e |
981 | register IO *io = GvIO(last_in_gv); |
982 | register I32 type = op->op_type; |
54310121 |
983 | I32 gimme = GIMME_V; |
e79b0511 |
984 | MAGIC *mg; |
a0d0e21e |
985 | |
e79b0511 |
986 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
987 | PUSHMARK(SP); |
988 | XPUSHs(mg->mg_obj); |
989 | PUTBACK; |
990 | ENTER; |
54310121 |
991 | perl_call_method("READLINE", gimme); |
e79b0511 |
992 | LEAVE; |
993 | SPAGAIN; |
54310121 |
994 | if (gimme == G_SCALAR) |
995 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
996 | RETURN; |
997 | } |
a0d0e21e |
998 | fp = Nullfp; |
999 | if (io) { |
1000 | fp = IoIFP(io); |
1001 | if (!fp) { |
1002 | if (IoFLAGS(io) & IOf_ARGV) { |
1003 | if (IoFLAGS(io) & IOf_START) { |
1004 | IoFLAGS(io) &= ~IOf_START; |
1005 | IoLINES(io) = 0; |
1006 | if (av_len(GvAVn(last_in_gv)) < 0) { |
1007 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
1008 | av_push(GvAVn(last_in_gv), tmpstr); |
1009 | } |
1010 | } |
1011 | fp = nextargv(last_in_gv); |
1012 | if (!fp) { /* Note: fp != IoIFP(io) */ |
1013 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
1014 | IoFLAGS(io) |= IOf_START; |
1015 | } |
1016 | } |
1017 | else if (type == OP_GLOB) { |
1018 | SV *tmpcmd = NEWSV(55, 0); |
1019 | SV *tmpglob = POPs; |
1020 | ENTER; |
1021 | SAVEFREESV(tmpcmd); |
1022 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1023 | /* since spawning off a process is a real performance hit */ |
1024 | { |
1025 | #include <descrip.h> |
1026 | #include <lib$routines.h> |
1027 | #include <nam.h> |
1028 | #include <rmsdef.h> |
1029 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1030 | char vmsspec[NAM$C_MAXRSS+1]; |
1031 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1032 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1033 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1034 | PerlIO *tmpfp; |
a0d0e21e |
1035 | STRLEN i; |
1036 | struct dsc$descriptor_s wilddsc |
1037 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1038 | struct dsc$descriptor_vs rsdsc |
1039 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1040 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1041 | |
1042 | /* We could find out if there's an explicit dev/dir or version |
1043 | by peeking into lib$find_file's internal context at |
1044 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1045 | but that's unsupported, so I don't want to do it now and |
1046 | have it bite someone in the future. */ |
1047 | strcat(tmpfnam,tmpnam(NULL)); |
1048 | cp = SvPV(tmpglob,i); |
1049 | for (; i; i--) { |
1050 | if (cp[i] == ';') hasver = 1; |
1051 | if (cp[i] == '.') { |
1052 | if (sts) hasver = 1; |
1053 | else sts = 1; |
1054 | } |
1055 | if (cp[i] == '/') { |
1056 | hasdir = isunix = 1; |
1057 | break; |
748a9306 |
1058 | } |
a0d0e21e |
1059 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1060 | hasdir = 1; |
1061 | break; |
1062 | } |
1063 | } |
760ac839 |
1064 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1065 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1066 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1067 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1068 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1069 | end = rstr + (unsigned long int) *rslt; |
1070 | if (!hasver) while (*end != ';') end--; |
1071 | *(end++) = '\n'; *end = '\0'; |
1072 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1073 | if (hasdir) { |
f86702cc |
1074 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1075 | begin = rstr; |
1076 | } |
1077 | else { |
1078 | begin = end; |
1079 | while (*(--begin) != ']' && *begin != '>') ; |
1080 | ++begin; |
1081 | } |
760ac839 |
1082 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1083 | } |
1084 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1085 | if (ok && sts != RMS$_NMF && |
1086 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1087 | if (!ok) { |
c07a80fd |
1088 | if (!(sts & 1)) { |
1089 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1090 | } |
760ac839 |
1091 | PerlIO_close(tmpfp); |
a0d0e21e |
1092 | fp = NULL; |
1093 | } |
1094 | else { |
760ac839 |
1095 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1096 | IoTYPE(io) = '<'; |
1097 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1098 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1099 | } |
1100 | } |
1101 | } |
1102 | #else /* !VMS */ |
1103 | #ifdef DOSISH |
67955e0c |
1104 | #ifdef OS2 |
1105 | sv_setpv(tmpcmd, "for a in "); |
1106 | sv_catsv(tmpcmd, tmpglob); |
1107 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1108 | #else |
a0d0e21e |
1109 | sv_setpv(tmpcmd, "perlglob "); |
1110 | sv_catsv(tmpcmd, tmpglob); |
1111 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1112 | #endif /* !OS2 */ |
1113 | #else /* !DOSISH */ |
1114 | #if defined(CSH) |
a0d0e21e |
1115 | sv_setpvn(tmpcmd, cshname, cshlen); |
1116 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1117 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1118 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1119 | #else |
1120 | sv_setpv(tmpcmd, "echo "); |
1121 | sv_catsv(tmpcmd, tmpglob); |
1122 | #if 'z' - 'a' == 25 |
1123 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1124 | #else |
1125 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1126 | #endif |
1127 | #endif /* !CSH */ |
67955e0c |
1128 | #endif /* !DOSISH */ |
c07a80fd |
1129 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1130 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1131 | fp = IoIFP(io); |
1132 | #endif /* !VMS */ |
1133 | LEAVE; |
1134 | } |
1135 | } |
1136 | else if (type == OP_GLOB) |
1137 | SP--; |
1138 | } |
1139 | if (!fp) { |
4633a7c4 |
1140 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1141 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 |
1142 | if (gimme == G_SCALAR) { |
a0d0e21e |
1143 | (void)SvOK_off(TARG); |
1144 | PUSHTARG; |
1145 | } |
1146 | RETURN; |
1147 | } |
54310121 |
1148 | if (gimme == G_SCALAR) { |
a0d0e21e |
1149 | sv = TARG; |
9607fc9c |
1150 | if (SvROK(sv)) |
1151 | sv_unref(sv); |
a0d0e21e |
1152 | (void)SvUPGRADE(sv, SVt_PV); |
1153 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1154 | if (!tmplen) |
1155 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1156 | if (type == OP_RCATLINE) |
1157 | offset = SvCUR(sv); |
1158 | else |
1159 | offset = 0; |
1160 | } |
54310121 |
1161 | else { |
1162 | sv = sv_2mortal(NEWSV(57, 80)); |
1163 | offset = 0; |
1164 | } |
a0d0e21e |
1165 | for (;;) { |
1166 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1167 | PerlIO_clearerr(fp); |
a0d0e21e |
1168 | if (IoFLAGS(io) & IOf_ARGV) { |
1169 | fp = nextargv(last_in_gv); |
1170 | if (fp) |
1171 | continue; |
1172 | (void)do_close(last_in_gv, FALSE); |
1173 | IoFLAGS(io) |= IOf_START; |
1174 | } |
1175 | else if (type == OP_GLOB) { |
5cd24f17 |
1176 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1177 | warn("internal error: glob failed"); |
a0d0e21e |
1178 | } |
54310121 |
1179 | if (gimme == G_SCALAR) { |
a0d0e21e |
1180 | (void)SvOK_off(TARG); |
1181 | PUSHTARG; |
1182 | } |
1183 | RETURN; |
1184 | } |
bbce6d69 |
1185 | /* This should not be marked tainted if the fp is marked clean */ |
1186 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1187 | TAINT; |
1188 | SvTAINTED_on(sv); |
1189 | } |
a0d0e21e |
1190 | IoLINES(io)++; |
71be2cbc |
1191 | SvSETMAGIC(sv); |
a0d0e21e |
1192 | XPUSHs(sv); |
a0d0e21e |
1193 | if (type == OP_GLOB) { |
1194 | char *tmps; |
1195 | |
c07a80fd |
1196 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1197 | tmps = SvEND(sv) - 1; |
1198 | if (*tmps == *SvPVX(rs)) { |
1199 | *tmps = '\0'; |
1200 | SvCUR(sv)--; |
1201 | } |
1202 | } |
a0d0e21e |
1203 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1204 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1205 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1206 | break; |
1207 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1208 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1209 | continue; |
1210 | } |
1211 | } |
54310121 |
1212 | if (gimme == G_ARRAY) { |
a0d0e21e |
1213 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1214 | SvLEN_set(sv, SvCUR(sv)+1); |
1215 | Renew(SvPVX(sv), SvLEN(sv), char); |
1216 | } |
1217 | sv = sv_2mortal(NEWSV(58, 80)); |
1218 | continue; |
1219 | } |
54310121 |
1220 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1221 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1222 | if (SvCUR(sv) < 60) |
1223 | SvLEN_set(sv, 80); |
1224 | else |
1225 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1226 | Renew(SvPVX(sv), SvLEN(sv), char); |
1227 | } |
1228 | RETURN; |
1229 | } |
1230 | } |
1231 | |
1232 | PP(pp_enter) |
1233 | { |
4e35701f |
1234 | djSP; |
c09156bb |
1235 | register PERL_CONTEXT *cx; |
54310121 |
1236 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e |
1237 | |
54310121 |
1238 | if (gimme == -1) { |
1239 | if (cxstack_ix >= 0) |
1240 | gimme = cxstack[cxstack_ix].blk_gimme; |
1241 | else |
1242 | gimme = G_SCALAR; |
1243 | } |
a0d0e21e |
1244 | |
1245 | ENTER; |
1246 | |
1247 | SAVETMPS; |
1248 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1249 | |
1250 | RETURN; |
1251 | } |
1252 | |
1253 | PP(pp_helem) |
1254 | { |
4e35701f |
1255 | djSP; |
760ac839 |
1256 | HE* he; |
ae77835f |
1257 | SV **svp; |
a0d0e21e |
1258 | SV *keysv = POPs; |
a0d0e21e |
1259 | HV *hv = (HV*)POPs; |
68dc0745 |
1260 | U32 lval = op->op_flags & OPf_MOD; |
1261 | U32 defer = op->op_private & OPpLVAL_DEFER; |
a0d0e21e |
1262 | |
ae77835f |
1263 | if (SvTYPE(hv) == SVt_PVHV) { |
1264 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1265 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1266 | } |
1267 | else if (SvTYPE(hv) == SVt_PVAV) { |
97fcbf96 |
1268 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1269 | } |
c750a3ec |
1270 | else { |
a0d0e21e |
1271 | RETPUSHUNDEF; |
c750a3ec |
1272 | } |
a0d0e21e |
1273 | if (lval) { |
97fcbf96 |
1274 | if (!svp || *svp == &sv_undef) { |
68dc0745 |
1275 | SV* lv; |
1276 | SV* key2; |
1277 | if (!defer) |
1278 | DIE(no_helem, SvPV(keysv, na)); |
1279 | lv = sv_newmortal(); |
1280 | sv_upgrade(lv, SVt_PVLV); |
1281 | LvTYPE(lv) = 'y'; |
1282 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1283 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1284 | LvTARG(lv) = SvREFCNT_inc(hv); |
1285 | LvTARGLEN(lv) = 1; |
1286 | PUSHs(lv); |
1287 | RETURN; |
1288 | } |
5f05dabc |
1289 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1290 | if (HvNAME(hv) && isGV(*svp)) |
1291 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1292 | else |
ae77835f |
1293 | save_svref(svp); |
5f05dabc |
1294 | } |
1295 | else if (op->op_private & OPpDEREF) |
ae77835f |
1296 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
1297 | } |
1298 | PUSHs(svp ? *svp : &sv_undef); |
1299 | RETURN; |
1300 | } |
1301 | |
1302 | PP(pp_leave) |
1303 | { |
4e35701f |
1304 | djSP; |
c09156bb |
1305 | register PERL_CONTEXT *cx; |
a0d0e21e |
1306 | register SV **mark; |
1307 | SV **newsp; |
1308 | PMOP *newpm; |
1309 | I32 gimme; |
1310 | |
1311 | if (op->op_flags & OPf_SPECIAL) { |
1312 | cx = &cxstack[cxstack_ix]; |
1313 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1314 | } |
1315 | |
1316 | POPBLOCK(cx,newpm); |
1317 | |
54310121 |
1318 | gimme = OP_GIMME(op, -1); |
1319 | if (gimme == -1) { |
1320 | if (cxstack_ix >= 0) |
1321 | gimme = cxstack[cxstack_ix].blk_gimme; |
1322 | else |
1323 | gimme = G_SCALAR; |
1324 | } |
a0d0e21e |
1325 | |
a1f49e72 |
1326 | TAINT_NOT; |
54310121 |
1327 | if (gimme == G_VOID) |
1328 | SP = newsp; |
1329 | else if (gimme == G_SCALAR) { |
1330 | MARK = newsp + 1; |
1331 | if (MARK <= SP) |
1332 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1333 | *MARK = TOPs; |
1334 | else |
1335 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1336 | else { |
54310121 |
1337 | MEXTEND(mark,0); |
1338 | *MARK = &sv_undef; |
a0d0e21e |
1339 | } |
54310121 |
1340 | SP = MARK; |
a0d0e21e |
1341 | } |
54310121 |
1342 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1343 | /* in case LEAVE wipes old return values */ |
1344 | for (mark = newsp + 1; mark <= SP; mark++) { |
1345 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1346 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1347 | TAINT_NOT; /* Each item is independent */ |
1348 | } |
1349 | } |
a0d0e21e |
1350 | } |
1351 | curpm = newpm; /* Don't pop $1 et al till now */ |
1352 | |
1353 | LEAVE; |
1354 | |
1355 | RETURN; |
1356 | } |
1357 | |
1358 | PP(pp_iter) |
1359 | { |
4e35701f |
1360 | djSP; |
c09156bb |
1361 | register PERL_CONTEXT *cx; |
5f05dabc |
1362 | SV* sv; |
4633a7c4 |
1363 | AV* av; |
a0d0e21e |
1364 | |
1365 | EXTEND(sp, 1); |
1366 | cx = &cxstack[cxstack_ix]; |
1367 | if (cx->cx_type != CXt_LOOP) |
1368 | DIE("panic: pp_iter"); |
1369 | |
4633a7c4 |
1370 | av = cx->blk_loop.iterary; |
71be2cbc |
1371 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1372 | RETPUSHNO; |
a0d0e21e |
1373 | |
7a4c00b4 |
1374 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1375 | |
5f05dabc |
1376 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1377 | SvTEMP_off(sv); |
a0d0e21e |
1378 | else |
5f05dabc |
1379 | sv = &sv_undef; |
1380 | if (av != curstack && SvIMMORTAL(sv)) { |
1381 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1382 | if (lv && SvREFCNT(lv) > 1) { |
1383 | SvREFCNT_dec(lv); |
1384 | lv = Nullsv; |
1385 | } |
5f05dabc |
1386 | if (lv) |
1387 | SvREFCNT_dec(LvTARG(lv)); |
1388 | else { |
68dc0745 |
1389 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1390 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1391 | LvTYPE(lv) = 'y'; |
68dc0745 |
1392 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1393 | } |
1394 | LvTARG(lv) = SvREFCNT_inc(av); |
1395 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1396 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1397 | sv = (SV*)lv; |
1398 | } |
a0d0e21e |
1399 | |
7a4c00b4 |
1400 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1401 | RETPUSHYES; |
1402 | } |
1403 | |
1404 | PP(pp_subst) |
1405 | { |
4e35701f |
1406 | djSP; dTARG; |
a0d0e21e |
1407 | register PMOP *pm = cPMOP; |
1408 | PMOP *rpm = pm; |
1409 | register SV *dstr; |
1410 | register char *s; |
1411 | char *strend; |
1412 | register char *m; |
1413 | char *c; |
1414 | register char *d; |
1415 | STRLEN clen; |
1416 | I32 iters = 0; |
1417 | I32 maxiters; |
1418 | register I32 i; |
1419 | bool once; |
71be2cbc |
1420 | bool rxtainted; |
a0d0e21e |
1421 | char *orig; |
1422 | I32 safebase; |
1423 | register REGEXP *rx = pm->op_pmregexp; |
1424 | STRLEN len; |
1425 | int force_on_match = 0; |
4633a7c4 |
1426 | I32 oldsave = savestack_ix; |
c277df42 |
1427 | I32 update_minmatch = 1; |
1428 | SV *screamer; |
a0d0e21e |
1429 | |
5cd24f17 |
1430 | /* known replacement string? */ |
1431 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
a0d0e21e |
1432 | if (op->op_flags & OPf_STACKED) |
1433 | TARG = POPs; |
1434 | else { |
54b9620d |
1435 | TARG = DEFSV; |
a0d0e21e |
1436 | EXTEND(SP,1); |
1437 | } |
68dc0745 |
1438 | if (SvREADONLY(TARG) |
1439 | || (SvTYPE(TARG) > SVt_PVLV |
1440 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
1441 | croak(no_modify); |
a0d0e21e |
1442 | s = SvPV(TARG, len); |
68dc0745 |
1443 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1444 | force_on_match = 1; |
9212bbba |
1445 | TAINT_NOT; |
a0d0e21e |
1446 | |
1447 | force_it: |
1448 | if (!pm || !s) |
1449 | DIE("panic: do_subst"); |
1450 | |
1451 | strend = s + len; |
1452 | maxiters = (strend - s) + 10; |
1453 | |
1454 | if (!rx->prelen && curpm) { |
1455 | pm = curpm; |
1456 | rx = pm->op_pmregexp; |
1457 | } |
c277df42 |
1458 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1459 | && SvTYPE(rx->check_substr) == SVt_PVBM |
1460 | && SvVALID(rx->check_substr)) |
1461 | ? TARG : Nullsv); |
1462 | safebase = (!rx->nparens && !sawampersand) ? 0 : REXEC_COPY_STR; |
a0d0e21e |
1463 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1464 | SAVEINT(multiline); |
1465 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1466 | } |
1467 | orig = m = s; |
c277df42 |
1468 | if (rx->check_substr) { |
1469 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ |
1470 | if (screamer) { |
1471 | I32 p = -1; |
1472 | |
1473 | if (screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
1474 | goto nope; |
c277df42 |
1475 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e |
1476 | goto nope; |
1477 | } |
c277df42 |
1478 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
1479 | (unsigned char*)strend, |
1480 | rx->check_substr))) |
a0d0e21e |
1481 | goto nope; |
c277df42 |
1482 | if (s && rx->check_offset_max < s - m) { |
1483 | ++BmUSEFUL(rx->check_substr); |
1484 | s -= rx->check_offset_max; |
a0d0e21e |
1485 | } |
1486 | else |
1487 | s = m; |
1488 | } |
c277df42 |
1489 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1490 | beginning of match, and the match is anchored at s. */ |
1491 | else if (!multiline) { /* Anchored at beginning of string. */ |
1492 | I32 slen; |
1493 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
1494 | || ((slen = SvCUR(rx->check_substr)) > 1 |
1495 | && memNE(SvPVX(rx->check_substr), |
1496 | s + rx->check_offset_min, slen))) |
bbce6d69 |
1497 | goto nope; |
a0d0e21e |
1498 | } |
c277df42 |
1499 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1500 | && rx->check_substr == rx->float_substr) { |
1501 | SvREFCNT_dec(rx->check_substr); |
1502 | rx->check_substr = Nullsv; /* opt is being useless */ |
1503 | rx->float_substr = Nullsv; |
a0d0e21e |
1504 | } |
1505 | } |
71be2cbc |
1506 | |
1507 | /* only replace once? */ |
a0d0e21e |
1508 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1509 | |
1510 | /* known replacement string? */ |
5cd24f17 |
1511 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1512 | |
1513 | /* can do inplace substitution? */ |
c277df42 |
1514 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1515 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
1516 | if (!regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
71be2cbc |
1517 | PUSHs(&sv_no); |
1518 | LEAVE_SCOPE(oldsave); |
1519 | RETURN; |
1520 | } |
1521 | if (force_on_match) { |
1522 | force_on_match = 0; |
1523 | s = SvPV_force(TARG, len); |
1524 | goto force_it; |
1525 | } |
71be2cbc |
1526 | d = s; |
1527 | curpm = pm; |
1528 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1529 | if (once) { |
c277df42 |
1530 | rxtainted = RX_MATCH_TAINTED(rx); |
1531 | if (rx->subbase) { |
1532 | m = orig + (rx->startp[0] - rx->subbase); |
1533 | d = orig + (rx->endp[0] - rx->subbase); |
1534 | } else { |
1535 | m = rx->startp[0]; |
1536 | d = rx->endp[0]; |
1537 | } |
71be2cbc |
1538 | s = orig; |
1539 | if (m - s > strend - d) { /* faster to shorten from end */ |
1540 | if (clen) { |
1541 | Copy(c, m, clen, char); |
1542 | m += clen; |
a0d0e21e |
1543 | } |
71be2cbc |
1544 | i = strend - d; |
1545 | if (i > 0) { |
1546 | Move(d, m, i, char); |
1547 | m += i; |
a0d0e21e |
1548 | } |
71be2cbc |
1549 | *m = '\0'; |
1550 | SvCUR_set(TARG, m - s); |
1551 | } |
1552 | /*SUPPRESS 560*/ |
1553 | else if (i = m - s) { /* faster from front */ |
1554 | d -= clen; |
1555 | m = d; |
1556 | sv_chop(TARG, d-i); |
1557 | s += i; |
1558 | while (i--) |
1559 | *--d = *--s; |
1560 | if (clen) |
1561 | Copy(c, m, clen, char); |
1562 | } |
1563 | else if (clen) { |
1564 | d -= clen; |
1565 | sv_chop(TARG, d); |
1566 | Copy(c, d, clen, char); |
1567 | } |
1568 | else { |
1569 | sv_chop(TARG, d); |
1570 | } |
9212bbba |
1571 | TAINT_IF(rxtainted); |
71be2cbc |
1572 | PUSHs(&sv_yes); |
1573 | } |
1574 | else { |
1575 | rxtainted = 0; |
1576 | do { |
1577 | if (iters++ > maxiters) |
1578 | DIE("Substitution loop"); |
c277df42 |
1579 | rxtainted |= RX_MATCH_TAINTED(rx); |
71be2cbc |
1580 | m = rx->startp[0]; |
1581 | /*SUPPRESS 560*/ |
1582 | if (i = m - s) { |
1583 | if (s != d) |
1584 | Move(s, d, i, char); |
1585 | d += i; |
a0d0e21e |
1586 | } |
71be2cbc |
1587 | if (clen) { |
1588 | Copy(c, d, clen, char); |
1589 | d += clen; |
1590 | } |
1591 | s = rx->endp[0]; |
c277df42 |
1592 | } while (regexec_flags(rx, s, strend, orig, s == m, |
1593 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc |
1594 | if (s != d) { |
1595 | i = strend - s; |
1596 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1597 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1598 | } |
9212bbba |
1599 | TAINT_IF(rxtainted); |
71be2cbc |
1600 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1601 | } |
71be2cbc |
1602 | (void)SvPOK_only(TARG); |
1603 | SvSETMAGIC(TARG); |
9212bbba |
1604 | SvTAINT(TARG); |
71be2cbc |
1605 | LEAVE_SCOPE(oldsave); |
1606 | RETURN; |
a0d0e21e |
1607 | } |
71be2cbc |
1608 | |
c277df42 |
1609 | if (regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e |
1610 | if (force_on_match) { |
1611 | force_on_match = 0; |
1612 | s = SvPV_force(TARG, len); |
1613 | goto force_it; |
1614 | } |
c277df42 |
1615 | rxtainted = RX_MATCH_TAINTED(rx); |
a0d0e21e |
1616 | dstr = NEWSV(25, sv_len(TARG)); |
1617 | sv_setpvn(dstr, m, s-m); |
1618 | curpm = pm; |
1619 | if (!c) { |
c09156bb |
1620 | register PERL_CONTEXT *cx; |
a0d0e21e |
1621 | PUSHSUBST(cx); |
1622 | RETURNOP(cPMOP->op_pmreplroot); |
1623 | } |
1624 | do { |
1625 | if (iters++ > maxiters) |
1626 | DIE("Substitution loop"); |
c277df42 |
1627 | rxtainted |= RX_MATCH_TAINTED(rx); |
a0d0e21e |
1628 | if (rx->subbase && rx->subbase != orig) { |
1629 | m = s; |
1630 | s = orig; |
1631 | orig = rx->subbase; |
1632 | s = orig + (m - s); |
1633 | strend = s + (strend - m); |
1634 | } |
1635 | m = rx->startp[0]; |
1636 | sv_catpvn(dstr, s, m-s); |
1637 | s = rx->endp[0]; |
1638 | if (clen) |
1639 | sv_catpvn(dstr, c, clen); |
1640 | if (once) |
1641 | break; |
c277df42 |
1642 | } while (regexec_flags(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e |
1643 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1644 | |
9212bbba |
1645 | TAINT_IF(rxtainted); |
1646 | |
4633a7c4 |
1647 | (void)SvOOK_off(TARG); |
cb0b1708 |
1648 | Safefree(SvPVX(TARG)); |
748a9306 |
1649 | SvPVX(TARG) = SvPVX(dstr); |
1650 | SvCUR_set(TARG, SvCUR(dstr)); |
1651 | SvLEN_set(TARG, SvLEN(dstr)); |
1652 | SvPVX(dstr) = 0; |
1653 | sv_free(dstr); |
1654 | |
a0d0e21e |
1655 | (void)SvPOK_only(TARG); |
1656 | SvSETMAGIC(TARG); |
9212bbba |
1657 | SvTAINT(TARG); |
a0d0e21e |
1658 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1659 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1660 | RETURN; |
1661 | } |
5cd24f17 |
1662 | goto ret_no; |
a0d0e21e |
1663 | |
1664 | nope: |
c277df42 |
1665 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 |
1666 | |
1667 | ret_no: |
a0d0e21e |
1668 | PUSHs(&sv_no); |
4633a7c4 |
1669 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1670 | RETURN; |
1671 | } |
1672 | |
1673 | PP(pp_grepwhile) |
1674 | { |
4e35701f |
1675 | djSP; |
a0d0e21e |
1676 | |
1677 | if (SvTRUEx(POPs)) |
1678 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1679 | ++*markstack_ptr; |
1680 | LEAVE; /* exit inner scope */ |
1681 | |
1682 | /* All done yet? */ |
1683 | if (stack_base + *markstack_ptr > sp) { |
1684 | I32 items; |
54310121 |
1685 | I32 gimme = GIMME_V; |
a0d0e21e |
1686 | |
1687 | LEAVE; /* exit outer scope */ |
1688 | (void)POPMARK; /* pop src */ |
1689 | items = --*markstack_ptr - markstack_ptr[-1]; |
1690 | (void)POPMARK; /* pop dst */ |
1691 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
1692 | if (gimme == G_SCALAR) { |
a0d0e21e |
1693 | dTARGET; |
1694 | XPUSHi(items); |
a0d0e21e |
1695 | } |
54310121 |
1696 | else if (gimme == G_ARRAY) |
1697 | SP += items; |
a0d0e21e |
1698 | RETURN; |
1699 | } |
1700 | else { |
1701 | SV *src; |
1702 | |
1703 | ENTER; /* enter inner scope */ |
1704 | SAVESPTR(curpm); |
1705 | |
1706 | src = stack_base[*markstack_ptr]; |
1707 | SvTEMP_off(src); |
54b9620d |
1708 | DEFSV = src; |
a0d0e21e |
1709 | |
1710 | RETURNOP(cLOGOP->op_other); |
1711 | } |
1712 | } |
1713 | |
1714 | PP(pp_leavesub) |
1715 | { |
4e35701f |
1716 | djSP; |
a0d0e21e |
1717 | SV **mark; |
1718 | SV **newsp; |
1719 | PMOP *newpm; |
1720 | I32 gimme; |
c09156bb |
1721 | register PERL_CONTEXT *cx; |
f86702cc |
1722 | struct block_sub cxsub; |
a0d0e21e |
1723 | |
1724 | POPBLOCK(cx,newpm); |
f86702cc |
1725 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1726 | |
a1f49e72 |
1727 | TAINT_NOT; |
a0d0e21e |
1728 | if (gimme == G_SCALAR) { |
1729 | MARK = newsp + 1; |
1730 | if (MARK <= SP) |
f86702cc |
1731 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e |
1732 | else { |
f86702cc |
1733 | MEXTEND(MARK, 0); |
a0d0e21e |
1734 | *MARK = &sv_undef; |
1735 | } |
1736 | SP = MARK; |
1737 | } |
54310121 |
1738 | else if (gimme == G_ARRAY) { |
f86702cc |
1739 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1740 | if (!SvTEMP(*MARK)) { |
f86702cc |
1741 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1742 | TAINT_NOT; /* Each item is independent */ |
1743 | } |
f86702cc |
1744 | } |
a0d0e21e |
1745 | } |
f86702cc |
1746 | PUTBACK; |
1747 | |
1748 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1749 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1750 | |
1751 | LEAVE; |
a0d0e21e |
1752 | return pop_return(); |
1753 | } |
1754 | |
3de9ffa1 |
1755 | static CV * |
8ac85365 |
1756 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 |
1757 | { |
1758 | dTHR; |
4f01c5a5 |
1759 | SV *oldsv = *svp; |
3de9ffa1 |
1760 | GV *gv; |
3de9ffa1 |
1761 | |
4f01c5a5 |
1762 | *svp = GvSV(DBsub); |
1763 | save_item(*svp); |
3de9ffa1 |
1764 | gv = CvGV(cv); |
1765 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1766 | || strEQ(GvNAME(gv), "END") |
1767 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1768 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1769 | && (gv = (GV*)oldsv) ))) { |
1770 | /* Use GV from the stack as a fallback. */ |
1771 | /* GV is potentially non-unique, or contain different CV. */ |
4f01c5a5 |
1772 | sv_setsv(*svp, newRV((SV*)cv)); |
3de9ffa1 |
1773 | } |
1774 | else { |
4f01c5a5 |
1775 | gv_efullname3(*svp, gv, Nullch); |
3de9ffa1 |
1776 | } |
1777 | cv = GvCV(DBsub); |
1778 | if (CvXSUB(cv)) |
1779 | curcopdb = curcop; |
1780 | return cv; |
1781 | } |
1782 | |
a0d0e21e |
1783 | PP(pp_entersub) |
1784 | { |
4e35701f |
1785 | djSP; dPOPss; |
a0d0e21e |
1786 | GV *gv; |
1787 | HV *stash; |
1788 | register CV *cv; |
c09156bb |
1789 | register PERL_CONTEXT *cx; |
5d94fbed |
1790 | I32 gimme; |
07055b4c |
1791 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1792 | |
1793 | if (!sv) |
1794 | DIE("Not a CODE reference"); |
1795 | switch (SvTYPE(sv)) { |
1796 | default: |
1797 | if (!SvROK(sv)) { |
748a9306 |
1798 | char *sym; |
1799 | |
fb73857a |
1800 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1801 | if (hasargs) |
1802 | SP = stack_base + POPMARK; |
a0d0e21e |
1803 | RETURN; |
fb73857a |
1804 | } |
15ff848f |
1805 | if (SvGMAGICAL(sv)) { |
1806 | mg_get(sv); |
1807 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1808 | } |
1809 | else |
1810 | sym = SvPV(sv, na); |
1811 | if (!sym) |
a0d0e21e |
1812 | DIE(no_usym, "a subroutine"); |
1813 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1814 | DIE(no_symref, sym, "a subroutine"); |
1815 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1816 | break; |
1817 | } |
1818 | cv = (CV*)SvRV(sv); |
1819 | if (SvTYPE(cv) == SVt_PVCV) |
1820 | break; |
1821 | /* FALL THROUGH */ |
1822 | case SVt_PVHV: |
1823 | case SVt_PVAV: |
1824 | DIE("Not a CODE reference"); |
1825 | case SVt_PVCV: |
1826 | cv = (CV*)sv; |
1827 | break; |
1828 | case SVt_PVGV: |
8ebc5c01 |
1829 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
1830 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1831 | break; |
1832 | } |
1833 | |
1834 | ENTER; |
1835 | SAVETMPS; |
1836 | |
1837 | retry: |
1838 | if (!cv) |
1839 | DIE("Not a CODE reference"); |
1840 | |
1841 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
1842 | GV* autogv; |
1843 | SV* subname; |
1844 | |
1845 | /* anonymous or undef'd function leaves us no recourse */ |
1846 | if (CvANON(cv) || !(gv = CvGV(cv))) |
1847 | DIE("Undefined subroutine called"); |
1848 | /* autoloaded stub? */ |
1849 | if (cv != GvCV(gv)) { |
1850 | cv = GvCV(gv); |
1851 | goto retry; |
a0d0e21e |
1852 | } |
44a8e56a |
1853 | /* should call AUTOLOAD now? */ |
54310121 |
1854 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1855 | FALSE))) |
1856 | { |
44a8e56a |
1857 | cv = GvCV(autogv); |
1858 | goto retry; |
a0d0e21e |
1859 | } |
44a8e56a |
1860 | /* sorry */ |
1861 | subname = sv_newmortal(); |
1862 | gv_efullname3(subname, gv, Nullch); |
1863 | DIE("Undefined subroutine &%s called", SvPVX(subname)); |
a0d0e21e |
1864 | } |
1865 | |
54310121 |
1866 | gimme = GIMME_V; |
3de9ffa1 |
1867 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 |
1868 | cv = get_db_sub(&sv, cv); |
3de9ffa1 |
1869 | if (!cv) |
1870 | DIE("No DBsub routine"); |
a0d0e21e |
1871 | |
11343788 |
1872 | #ifdef USE_THREADS |
3de9ffa1 |
1873 | /* |
1874 | * First we need to check if the sub or method requires locking. |
458fb581 |
1875 | * If so, we gain a lock on the CV, the first argument or the |
1876 | * stash (for static methods), as appropriate. This has to be |
1877 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
1878 | * reschedule by returning a new op. |
3de9ffa1 |
1879 | */ |
11343788 |
1880 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
1881 | if (CvFLAGS(cv) & CVf_LOCKED) { |
1882 | MAGIC *mg; |
1883 | if (CvFLAGS(cv) & CVf_METHOD) { |
1884 | if (SP > stack_base + TOPMARK) |
1885 | sv = *(stack_base + TOPMARK + 1); |
1886 | else { |
1887 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1888 | croak("no argument for locked method call"); |
1889 | } |
1890 | if (SvROK(sv)) |
1891 | sv = SvRV(sv); |
458fb581 |
1892 | else { |
1893 | STRLEN len; |
1894 | char *stashname = SvPV(sv, len); |
1895 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
1896 | } |
77a005ab |
1897 | } |
1898 | else { |
1899 | sv = (SV*)cv; |
1900 | } |
1901 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1902 | mg = condpair_magic(sv); |
1903 | MUTEX_LOCK(MgMUTEXP(mg)); |
1904 | if (MgOWNER(mg) == thr) |
1905 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
1906 | else { |
1907 | while (MgOWNER(mg)) |
1908 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
1909 | MgOWNER(mg) = thr; |
1fd28e87 |
1910 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1911 | thr, sv);) |
77a005ab |
1912 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e |
1913 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab |
1914 | save_destructor(unlock_condpair, sv); |
11343788 |
1915 | } |
77a005ab |
1916 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
1917 | } |
3de9ffa1 |
1918 | /* |
1919 | * Now we have permission to enter the sub, we must distinguish |
1920 | * four cases. (0) It's an XSUB (in which case we don't care |
1921 | * about ownership); (1) it's ours already (and we're recursing); |
1922 | * (2) it's free (but we may already be using a cached clone); |
1923 | * (3) another thread owns it. Case (1) is easy: we just use it. |
1924 | * Case (2) means we look for a clone--if we have one, use it |
1925 | * otherwise grab ownership of cv. Case (3) means we look for a |
1926 | * clone (for non-XSUBs) and have to create one if we don't |
1927 | * already have one. |
1928 | * Why look for a clone in case (2) when we could just grab |
1929 | * ownership of cv straight away? Well, we could be recursing, |
1930 | * i.e. we originally tried to enter cv while another thread |
1931 | * owned it (hence we used a clone) but it has been freed up |
1932 | * and we're now recursing into it. It may or may not be "better" |
1933 | * to use the clone but at least CvDEPTH can be trusted. |
1934 | */ |
1935 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
1936 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
1937 | else { |
3de9ffa1 |
1938 | /* Case (2) or (3) */ |
1939 | SV **svp; |
1940 | |
11343788 |
1941 | /* |
3de9ffa1 |
1942 | * XXX Might it be better to release CvMUTEXP(cv) while we |
1943 | * do the hv_fetch? We might find someone has pinched it |
1944 | * when we look again, in which case we would be in case |
1945 | * (3) instead of (2) so we'd have to clone. Would the fact |
1946 | * that we released the mutex more quickly make up for this? |
1947 | */ |
199100c8 |
1948 | svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE); |
3de9ffa1 |
1949 | if (svp) { |
1950 | /* We already have a clone to use */ |
11343788 |
1951 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
1952 | cv = *(CV**)svp; |
1953 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
1954 | "entersub: %p already has clone %p:%s\n", |
1955 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
1956 | CvOWNER(cv) = thr; |
1957 | SvREFCNT_inc(cv); |
1958 | if (CvDEPTH(cv) == 0) |
1959 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
1960 | } |
11343788 |
1961 | else { |
3de9ffa1 |
1962 | /* (2) => grab ownership of cv. (3) => make clone */ |
1963 | if (!CvOWNER(cv)) { |
1964 | CvOWNER(cv) = thr; |
1965 | SvREFCNT_inc(cv); |
11343788 |
1966 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 |
1967 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
1968 | "entersub: %p grabbing %p:%s in stash %s\n", |
1969 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
1970 | HvNAME(CvSTASH(cv)) : "(none)")); |
1971 | } else { |
1972 | /* Make a new clone. */ |
1973 | CV *clonecv; |
1974 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
1975 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
1976 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
1977 | "entersub: %p cloning %p:%s\n", |
1978 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
1979 | /* |
1980 | * We're creating a new clone so there's no race |
1981 | * between the original MUTEX_UNLOCK and the |
1982 | * SvREFCNT_inc since no one will be trying to undef |
1983 | * it out from underneath us. At least, I don't think |
1984 | * there's a race... |
1985 | */ |
1986 | clonecv = cv_clone(cv); |
1987 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
1988 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
1989 | CvOWNER(clonecv) = thr; |
1990 | cv = clonecv; |
11343788 |
1991 | SvREFCNT_inc(cv); |
11343788 |
1992 | } |
3de9ffa1 |
1993 | DEBUG_L(if (CvDEPTH(cv) != 0) |
1994 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
1995 | CvDEPTH(cv));); |
1996 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
1997 | } |
3de9ffa1 |
1998 | } |
11343788 |
1999 | #endif /* USE_THREADS */ |
2000 | |
2001 | gimme = GIMME; |
2002 | |
a0d0e21e |
2003 | if (CvXSUB(cv)) { |
2004 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
2005 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
2006 | dMARK; |
2007 | register I32 items = SP - MARK; |
67955e0c |
2008 | /* We dont worry to copy from @_. */ |
a0d0e21e |
2009 | while (sp > mark) { |
2010 | sp[1] = sp[0]; |
2011 | sp--; |
2012 | } |
2013 | stack_sp = mark + 1; |
ecfc5424 |
2014 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2015 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
2016 | MARK - stack_base + 1, |
2017 | items); |
a0d0e21e |
2018 | stack_sp = stack_base + items; |
2019 | } |
2020 | else { |
748a9306 |
2021 | I32 markix = TOPMARK; |
2022 | |
a0d0e21e |
2023 | PUTBACK; |
67955e0c |
2024 | |
2025 | if (!hasargs) { |
2026 | /* Need to copy @_ to stack. Alternative may be to |
2027 | * switch stack to @_, and copy return values |
2028 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2029 | AV* av; |
2030 | I32 items; |
2031 | #ifdef USE_THREADS |
2032 | av = (AV*)curpad[0]; |
2033 | #else |
2034 | av = GvAV(defgv); |
2035 | #endif /* USE_THREADS */ |
2036 | items = AvFILL(av) + 1; |
67955e0c |
2037 | |
2038 | if (items) { |
2039 | /* Mark is at the end of the stack. */ |
2040 | EXTEND(sp, items); |
2041 | Copy(AvARRAY(av), sp + 1, items, SV*); |
2042 | sp += items; |
2043 | PUTBACK ; |
2044 | } |
2045 | } |
2046 | if (curcopdb) { /* We assume that the first |
2047 | XSUB in &DB::sub is the |
2048 | called one. */ |
2049 | SAVESPTR(curcop); |
2050 | curcop = curcopdb; |
2051 | curcopdb = NULL; |
2052 | } |
2053 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
2054 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
2055 | |
2056 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
2057 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
2058 | if (markix > stack_sp - stack_base) |
2059 | *(stack_base + markix) = &sv_undef; |
2060 | else |
2061 | *(stack_base + markix) = *stack_sp; |
2062 | stack_sp = stack_base + markix; |
2063 | } |
a0d0e21e |
2064 | } |
2065 | LEAVE; |
2066 | return NORMAL; |
2067 | } |
2068 | else { |
2069 | dMARK; |
2070 | register I32 items = SP - MARK; |
a0d0e21e |
2071 | AV* padlist = CvPADLIST(cv); |
2072 | SV** svp = AvARRAY(padlist); |
2073 | push_return(op->op_next); |
2074 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2075 | PUSHSUB(cx); |
2076 | CvDEPTH(cv)++; |
2077 | if (CvDEPTH(cv) < 2) |
2078 | (void)SvREFCNT_inc(cv); |
2079 | else { /* save temporaries on recursion? */ |
5f05dabc |
2080 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 |
2081 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a |
2082 | sub_crush_depth(cv); |
a0d0e21e |
2083 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
2084 | AV *av; |
2085 | AV *newpad = newAV(); |
4aa0a1f7 |
2086 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
2087 | I32 ix = AvFILL((AV*)svp[1]); |
2088 | svp = AvARRAY(svp[0]); |
748a9306 |
2089 | for ( ;ix > 0; ix--) { |
a0d0e21e |
2090 | if (svp[ix] != &sv_undef) { |
748a9306 |
2091 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2092 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2093 | || *name == '&') /* anonymous code? */ |
2094 | { |
2095 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2096 | } |
2097 | else { /* our own lexical */ |
2098 | if (*name == '@') |
2099 | av_store(newpad, ix, sv = (SV*)newAV()); |
2100 | else if (*name == '%') |
2101 | av_store(newpad, ix, sv = (SV*)newHV()); |
2102 | else |
2103 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2104 | SvPADMY_on(sv); |
2105 | } |
a0d0e21e |
2106 | } |
2107 | else { |
748a9306 |
2108 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2109 | SvPADTMP_on(sv); |
2110 | } |
2111 | } |
2112 | av = newAV(); /* will be @_ */ |
2113 | av_extend(av, 0); |
2114 | av_store(newpad, 0, (SV*)av); |
2115 | AvFLAGS(av) = AVf_REIFY; |
2116 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
2117 | AvFILL(padlist) = CvDEPTH(cv); |
2118 | svp = AvARRAY(padlist); |
2119 | } |
2120 | } |
6d4ff0d2 |
2121 | #ifdef USE_THREADS |
2122 | if (!hasargs) { |
a0d0e21e |
2123 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 |
2124 | |
2125 | items = AvFILL(av) + 1; |
2126 | if (items) { |
2127 | /* Mark is at the end of the stack. */ |
2128 | EXTEND(sp, items); |
2129 | Copy(AvARRAY(av), sp + 1, items, SV*); |
2130 | sp += items; |
2131 | PUTBACK ; |
2132 | } |
2133 | } |
2134 | #endif /* USE_THREADS */ |
2135 | SAVESPTR(curpad); |
2136 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
2137 | #ifndef USE_THREADS |
2138 | if (hasargs) |
2139 | #endif /* USE_THREADS */ |
2140 | { |
2141 | AV* av; |
a0d0e21e |
2142 | SV** ary; |
2143 | |
77a005ab |
2144 | #if 0 |
0f15f207 |
2145 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2146 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2147 | #endif |
6d4ff0d2 |
2148 | av = (AV*)curpad[0]; |
a0d0e21e |
2149 | if (AvREAL(av)) { |
2150 | av_clear(av); |
2151 | AvREAL_off(av); |
2152 | } |
6d4ff0d2 |
2153 | #ifndef USE_THREADS |
a0d0e21e |
2154 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 |
2155 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2156 | #endif /* USE_THREADS */ |
2157 | cx->blk_sub.argarray = av; |
a0d0e21e |
2158 | ++MARK; |
2159 | |
2160 | if (items > AvMAX(av) + 1) { |
2161 | ary = AvALLOC(av); |
2162 | if (AvARRAY(av) != ary) { |
2163 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2164 | SvPVX(av) = (char*)ary; |
2165 | } |
2166 | if (items > AvMAX(av) + 1) { |
2167 | AvMAX(av) = items - 1; |
2168 | Renew(ary,items,SV*); |
2169 | AvALLOC(av) = ary; |
2170 | SvPVX(av) = (char*)ary; |
2171 | } |
2172 | } |
2173 | Copy(MARK,AvARRAY(av),items,SV*); |
2174 | AvFILL(av) = items - 1; |
2175 | |
2176 | while (items--) { |
2177 | if (*MARK) |
2178 | SvTEMP_off(*MARK); |
2179 | MARK++; |
2180 | } |
2181 | } |
77a005ab |
2182 | #if 0 |
0f15f207 |
2183 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2184 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2185 | #endif |
a0d0e21e |
2186 | RETURNOP(CvSTART(cv)); |
2187 | } |
2188 | } |
2189 | |
44a8e56a |
2190 | void |
8ac85365 |
2191 | sub_crush_depth(CV *cv) |
44a8e56a |
2192 | { |
2193 | if (CvANON(cv)) |
2194 | warn("Deep recursion on anonymous subroutine"); |
2195 | else { |
2196 | SV* tmpstr = sv_newmortal(); |
2197 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
2198 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
2199 | } |
2200 | } |
2201 | |
a0d0e21e |
2202 | PP(pp_aelem) |
2203 | { |
4e35701f |
2204 | djSP; |
a0d0e21e |
2205 | SV** svp; |
748a9306 |
2206 | I32 elem = POPi; |
68dc0745 |
2207 | AV* av = (AV*)POPs; |
2208 | U32 lval = op->op_flags & OPf_MOD; |
2209 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
a0d0e21e |
2210 | |
748a9306 |
2211 | if (elem > 0) |
2212 | elem -= curcop->cop_arybase; |
a0d0e21e |
2213 | if (SvTYPE(av) != SVt_PVAV) |
2214 | RETPUSHUNDEF; |
68dc0745 |
2215 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2216 | if (lval) { |
68dc0745 |
2217 | if (!svp || *svp == &sv_undef) { |
2218 | SV* lv; |
2219 | if (!defer) |
2220 | DIE(no_aelem, elem); |
2221 | lv = sv_newmortal(); |
2222 | sv_upgrade(lv, SVt_PVLV); |
2223 | LvTYPE(lv) = 'y'; |
2224 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2225 | LvTARG(lv) = SvREFCNT_inc(av); |
2226 | LvTARGOFF(lv) = elem; |
2227 | LvTARGLEN(lv) = 1; |
2228 | PUSHs(lv); |
2229 | RETURN; |
2230 | } |
a0d0e21e |
2231 | if (op->op_private & OPpLVAL_INTRO) |
2232 | save_svref(svp); |
5f05dabc |
2233 | else if (op->op_private & OPpDEREF) |
68dc0745 |
2234 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
2235 | } |
2236 | PUSHs(svp ? *svp : &sv_undef); |
2237 | RETURN; |
2238 | } |
2239 | |
02a9e968 |
2240 | void |
8ac85365 |
2241 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 |
2242 | { |
2243 | if (SvGMAGICAL(sv)) |
2244 | mg_get(sv); |
2245 | if (!SvOK(sv)) { |
2246 | if (SvREADONLY(sv)) |
2247 | croak(no_modify); |
5f05dabc |
2248 | if (SvTYPE(sv) < SVt_RV) |
2249 | sv_upgrade(sv, SVt_RV); |
2250 | else if (SvTYPE(sv) >= SVt_PV) { |
2251 | (void)SvOOK_off(sv); |
2252 | Safefree(SvPVX(sv)); |
2253 | SvLEN(sv) = SvCUR(sv) = 0; |
2254 | } |
68dc0745 |
2255 | switch (to_what) { |
5f05dabc |
2256 | case OPpDEREF_SV: |
2257 | SvRV(sv) = newSV(0); |
2258 | break; |
2259 | case OPpDEREF_AV: |
2260 | SvRV(sv) = (SV*)newAV(); |
2261 | break; |
2262 | case OPpDEREF_HV: |
2263 | SvRV(sv) = (SV*)newHV(); |
2264 | break; |
2265 | } |
02a9e968 |
2266 | SvROK_on(sv); |
2267 | SvSETMAGIC(sv); |
2268 | } |
2269 | } |
2270 | |
a0d0e21e |
2271 | PP(pp_method) |
2272 | { |
4e35701f |
2273 | djSP; |
a0d0e21e |
2274 | SV* sv; |
2275 | SV* ob; |
2276 | GV* gv; |
56304f61 |
2277 | HV* stash; |
2278 | char* name; |
ac91690f |
2279 | char* packname; |
2280 | STRLEN packlen; |
a0d0e21e |
2281 | |
fb73857a |
2282 | if (SvROK(TOPs)) { |
2283 | sv = SvRV(TOPs); |
2284 | if (SvTYPE(sv) == SVt_PVCV) { |
2285 | SETs(sv); |
2286 | RETURN; |
2287 | } |
2288 | } |
2289 | |
56304f61 |
2290 | name = SvPV(TOPs, na); |
a0d0e21e |
2291 | sv = *(stack_base + TOPMARK + 1); |
2292 | |
16d20bd9 |
2293 | if (SvGMAGICAL(sv)) |
2294 | mg_get(sv); |
a0d0e21e |
2295 | if (SvROK(sv)) |
16d20bd9 |
2296 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2297 | else { |
2298 | GV* iogv; |
a0d0e21e |
2299 | |
56304f61 |
2300 | packname = Nullch; |
a0d0e21e |
2301 | if (!SvOK(sv) || |
56304f61 |
2302 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2303 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2304 | !(ob=(SV*)GvIO(iogv))) |
2305 | { |
56304f61 |
2306 | if (!packname || !isIDFIRST(*packname)) |
ac91690f |
2307 | DIE("Can't call method \"%s\" without a package or object reference", name); |
56304f61 |
2308 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2309 | goto fetch; |
a0d0e21e |
2310 | } |
ac91690f |
2311 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2312 | } |
2313 | |
ac91690f |
2314 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e |
2315 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2316 | |
56304f61 |
2317 | stash = SvSTASH(ob); |
a0d0e21e |
2318 | |
ac91690f |
2319 | fetch: |
ac91690f |
2320 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2321 | if (!gv) { |
2322 | char* leaf = name; |
2323 | char* sep = Nullch; |
2324 | char* p; |
2325 | |
2326 | for (p = name; *p; p++) { |
2327 | if (*p == '\'') |
2328 | sep = p, leaf = p + 1; |
2329 | else if (*p == ':' && *(p + 1) == ':') |
2330 | sep = p, leaf = p + 2; |
2331 | } |
2332 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
2333 | packname = HvNAME(sep ? curcop->cop_stash : stash); |
2334 | packlen = strlen(packname); |
2335 | } |
2336 | else { |
2337 | packname = name; |
2338 | packlen = sep - name; |
2339 | } |
2340 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", |
2341 | leaf, (int)packlen, packname); |
2342 | } |
8ebc5c01 |
2343 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2344 | RETURN; |
2345 | } |