Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e LW |
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 NIS |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> | |
23 | #endif | |
24 | ||
a0d0e21e LW |
25 | /* Hot code. */ |
26 | ||
11343788 MB |
27 | #ifdef USE_THREADS |
28 | static void | |
8ac85365 | 29 | unset_cvowner(void *cvarg) |
11343788 MB |
30 | { |
31 | register CV* cv = (CV *) cvarg; | |
32 | #ifdef DEBUGGING | |
33 | dTHR; | |
34 | #endif /* DEBUGGING */ | |
35 | ||
1fd28e87 MB |
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 MB |
39 | DEBUG_L(if (CvDEPTH(cv) != 0) |
40 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", | |
41 | CvDEPTH(cv));); | |
11343788 MB |
42 | assert(thr == CvOWNER(cv)); |
43 | CvOWNER(cv) = 0; | |
11343788 MB |
44 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
45 | SvREFCNT_dec(cv); | |
46 | } | |
11343788 MB |
47 | #endif /* USE_THREADS */ |
48 | ||
a0d0e21e LW |
49 | PP(pp_const) |
50 | { | |
51 | dSP; | |
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 | { | |
67 | dSP; | |
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 | { | |
89 | dSP; dTARGET; | |
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 | { | |
100 | dSP; | |
101 | XPUSHs((SV*)cGVOP->op_gv); | |
102 | RETURN; | |
103 | } | |
104 | ||
105 | PP(pp_and) | |
106 | { | |
107 | dSP; | |
108 | if (!SvTRUE(TOPs)) | |
109 | RETURN; | |
110 | else { | |
111 | --SP; | |
112 | RETURNOP(cLOGOP->op_other); | |
113 | } | |
114 | } | |
115 | ||
116 | PP(pp_sassign) | |
117 | { | |
118 | dSP; dPOPTOPssrl; | |
748a9306 LW |
119 | MAGIC *mg; |
120 | ||
a0d0e21e LW |
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 LW |
128 | SETs(right); |
129 | RETURN; | |
130 | } | |
131 | ||
132 | PP(pp_cond_expr) | |
133 | { | |
134 | dSP; | |
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 LW |
152 | PP(pp_concat) |
153 | { | |
748a9306 LW |
154 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
155 | { | |
156 | dPOPTOPssrl; | |
a0d0e21e LW |
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 LW |
174 | SETTARG; |
175 | RETURN; | |
748a9306 | 176 | } |
a0d0e21e LW |
177 | } |
178 | ||
179 | PP(pp_padsv) | |
180 | { | |
181 | dSP; dTARGET; | |
182 | XPUSHs(TARG); | |
4633a7c4 LW |
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 LW |
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 | { | |
200 | dSP; tryAMAGICbinSET(eq,0); | |
201 | { | |
202 | dPOPnv; | |
54310121 | 203 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
204 | RETURN; |
205 | } | |
206 | } | |
207 | ||
208 | PP(pp_preinc) | |
209 | { | |
210 | dSP; | |
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 LW |
218 | } |
219 | else | |
220 | sv_inc(TOPs); | |
a0d0e21e LW |
221 | SvSETMAGIC(TOPs); |
222 | return NORMAL; | |
223 | } | |
224 | ||
225 | PP(pp_or) | |
226 | { | |
227 | dSP; | |
228 | if (SvTRUE(TOPs)) | |
229 | RETURN; | |
230 | else { | |
231 | --SP; | |
232 | RETURNOP(cLOGOP->op_other); | |
233 | } | |
234 | } | |
235 | ||
236 | PP(pp_add) | |
237 | { | |
238 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); | |
239 | { | |
7a4c00b4 | 240 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
241 | SETn( left + right ); |
242 | RETURN; | |
243 | } | |
244 | } | |
245 | ||
246 | PP(pp_aelemfast) | |
247 | { | |
248 | dSP; | |
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 | { | |
257 | dSP; dMARK; dTARGET; | |
258 | MARK++; | |
259 | do_join(TARG, *MARK, MARK, SP); | |
260 | SP = MARK; | |
261 | SETs(TARG); | |
262 | RETURN; | |
263 | } | |
264 | ||
265 | PP(pp_pushre) | |
266 | { | |
267 | dSP; | |
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 LW |
281 | RETURN; |
282 | } | |
283 | ||
284 | /* Oversized hot code. */ | |
285 | ||
286 | PP(pp_print) | |
287 | { | |
288 | dSP; dMARK; dORIGMARK; | |
289 | GV *gv; | |
290 | IO *io; | |
760ac839 | 291 | register PerlIO *fp; |
236988e4 | 292 | MAGIC *mg; |
a0d0e21e LW |
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 LW |
318 | if (dowarn) { |
319 | SV* sv = sv_newmortal(); | |
4f732624 | 320 | gv_fullname3(sv, gv, Nullch); |
748a9306 LW |
321 | warn("Filehandle %s never opened", SvPV(sv,na)); |
322 | } | |
323 | ||
324 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
325 | goto just_say_no; |
326 | } | |
327 | else if (!(fp = IoOFP(io))) { | |
328 | if (dowarn) { | |
748a9306 | 329 | SV* sv = sv_newmortal(); |
4f732624 | 330 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 331 | if (IoIFP(io)) |
748a9306 | 332 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e | 333 | else |
748a9306 | 334 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e | 335 | } |
748a9306 | 336 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
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 LW |
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 LW |
366 | goto just_say_no; |
367 | ||
368 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 369 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
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 | { | |
385 | dSP; dPOPss; | |
a0d0e21e LW |
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 LW |
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 LW |
410 | char *sym; |
411 | ||
a0d0e21e LW |
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 CS |
421 | if (dowarn) |
422 | warn(warn_uninit); | |
4633a7c4 LW |
423 | if (GIMME == G_ARRAY) |
424 | RETURN; | |
a0d0e21e LW |
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 LW |
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 | { | |
a0d0e21e | 460 | dSP; dTOPss; |
a0d0e21e LW |
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 LW |
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 LW |
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 LW |
485 | char *sym; |
486 | ||
a0d0e21e LW |
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 CS |
496 | if (dowarn) |
497 | warn(warn_uninit); | |
4633a7c4 LW |
498 | if (GIMME == G_ARRAY) { |
499 | SP--; | |
500 | RETURN; | |
501 | } | |
a0d0e21e LW |
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 LW |
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 LW |
531 | else |
532 | sv_setiv(TARG, 0); | |
c750a3ec | 533 | |
a0d0e21e LW |
534 | SETTARG; |
535 | RETURN; | |
536 | } | |
537 | } | |
538 | ||
539 | PP(pp_aassign) | |
540 | { | |
541 | dSP; | |
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 LW |
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 CS |
567 | if (sv = *relem) { |
568 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 569 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 570 | } |
a0d0e21e LW |
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 LW |
580 | sv = *lelem++; |
581 | switch (SvTYPE(sv)) { | |
582 | case SVt_PVAV: | |
583 | ary = (AV*)sv; | |
748a9306 | 584 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
585 | |
586 | av_clear(ary); | |
7e42bd57 | 587 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
588 | i = 0; |
589 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 590 | SV **didstore; |
a0d0e21e LW |
591 | sv = NEWSV(28,0); |
592 | assert(*relem); | |
593 | sv_setsv(sv,*relem); | |
594 | *(relem++) = sv; | |
5117ca91 GS |
595 | didstore = av_store(ary,i++,sv); |
596 | if (magic) { | |
fb73857a | 597 | if (SvSMAGICAL(sv)) |
598 | mg_set(sv); | |
5117ca91 GS |
599 | if (!didstore) |
600 | SvREFCNT_dec(sv); | |
601 | } | |
bbce6d69 | 602 | TAINT_NOT; |
a0d0e21e LW |
603 | } |
604 | break; | |
605 | case SVt_PVHV: { | |
a0d0e21e LW |
606 | SV *tmpstr; |
607 | ||
608 | hash = (HV*)sv; | |
748a9306 | 609 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
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 LW |
619 | tmpstr = NEWSV(29,0); |
620 | if (*relem) | |
621 | sv_setsv(tmpstr,*relem); /* value */ | |
622 | *(relem++) = tmpstr; | |
5117ca91 GS |
623 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
624 | if (magic) { | |
fb73857a | 625 | if (SvSMAGICAL(tmpstr)) |
626 | mg_set(tmpstr); | |
5117ca91 GS |
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 LW |
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 AD |
662 | #else |
663 | # ifdef HAS_SETREUID | |
a0d0e21e | 664 | (void)setreuid(uid,euid); |
56febc5e AD |
665 | # else |
666 | # ifdef HAS_SETRUID | |
a0d0e21e LW |
667 | if ((delaymagic & DM_UID) == DM_RUID) { |
668 | (void)setruid(uid); | |
748a9306 | 669 | delaymagic &= ~DM_RUID; |
a0d0e21e | 670 | } |
56febc5e AD |
671 | # endif /* HAS_SETRUID */ |
672 | # ifdef HAS_SETEUID | |
a0d0e21e LW |
673 | if ((delaymagic & DM_UID) == DM_EUID) { |
674 | (void)seteuid(uid); | |
748a9306 | 675 | delaymagic &= ~DM_EUID; |
a0d0e21e | 676 | } |
56febc5e | 677 | # endif /* HAS_SETEUID */ |
a0d0e21e LW |
678 | if (delaymagic & DM_UID) { |
679 | if (uid != euid) | |
680 | DIE("No setreuid available"); | |
681 | (void)setuid(uid); | |
682 | } | |
56febc5e AD |
683 | # endif /* HAS_SETREUID */ |
684 | #endif /* HAS_SETRESUID */ | |
a0d0e21e LW |
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 AD |
691 | #else |
692 | # ifdef HAS_SETREGID | |
a0d0e21e | 693 | (void)setregid(gid,egid); |
56febc5e AD |
694 | # else |
695 | # ifdef HAS_SETRGID | |
a0d0e21e LW |
696 | if ((delaymagic & DM_GID) == DM_RGID) { |
697 | (void)setrgid(gid); | |
748a9306 | 698 | delaymagic &= ~DM_RGID; |
a0d0e21e | 699 | } |
56febc5e AD |
700 | # endif /* HAS_SETRGID */ |
701 | # ifdef HAS_SETEGID | |
a0d0e21e LW |
702 | if ((delaymagic & DM_GID) == DM_EGID) { |
703 | (void)setegid(gid); | |
748a9306 | 704 | delaymagic &= ~DM_EGID; |
a0d0e21e | 705 | } |
56febc5e | 706 | # endif /* HAS_SETEGID */ |
a0d0e21e LW |
707 | if (delaymagic & DM_GID) { |
708 | if (gid != egid) | |
709 | DIE("No setregid available"); | |
710 | (void)setgid(gid); | |
711 | } | |
56febc5e AD |
712 | # endif /* HAS_SETREGID */ |
713 | #endif /* HAS_SETRESGID */ | |
a0d0e21e LW |
714 | gid = (int)getgid(); |
715 | egid = (int)getegid(); | |
716 | } | |
4633a7c4 | 717 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e LW |
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 LW |
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 LW |
739 | } |
740 | ||
741 | PP(pp_match) | |
742 | { | |
743 | dSP; dTARG; | |
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; |
a0d0e21e LW |
757 | |
758 | if (op->op_flags & OPf_STACKED) | |
759 | TARG = POPs; | |
760 | else { | |
761 | TARG = GvSV(defgv); | |
762 | EXTEND(SP,1); | |
763 | } | |
764 | s = SvPV(TARG, len); | |
765 | strend = s + len; | |
766 | if (!s) | |
767 | DIE("panic: do_match"); | |
9212bbba | 768 | TAINT_NOT; |
a0d0e21e LW |
769 | |
770 | if (pm->op_pmflags & PMf_USED) { | |
771 | if (gimme == G_ARRAY) | |
772 | RETURN; | |
773 | RETPUSHNO; | |
774 | } | |
775 | ||
776 | if (!rx->prelen && curpm) { | |
777 | pm = curpm; | |
778 | rx = pm->op_pmregexp; | |
779 | } | |
780 | truebase = t = s; | |
781 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
782 | rx->startp[0] = 0; | |
783 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { | |
784 | MAGIC* mg = mg_find(TARG, 'g'); | |
748a9306 | 785 | if (mg && mg->mg_len >= 0) { |
a0d0e21e | 786 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 | 787 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 788 | update_minmatch = 0; |
748a9306 | 789 | } |
a0d0e21e LW |
790 | } |
791 | } | |
748a9306 LW |
792 | if (!rx->nparens && !global) |
793 | gimme = G_SCALAR; /* accidental array context? */ | |
137443ea | 794 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
795 | && !sawampersand); | |
a0d0e21e LW |
796 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
797 | SAVEINT(multiline); | |
798 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
799 | } | |
800 | ||
801 | play_it_again: | |
802 | if (global && rx->startp[0]) { | |
803 | t = s = rx->endp[0]; | |
51aa1f50 | 804 | if ((s + rx->minlen) > strend) |
a0d0e21e | 805 | goto nope; |
f86702cc | 806 | if (update_minmatch++) |
807 | minmatch = (s == rx->startp[0]); | |
a0d0e21e LW |
808 | } |
809 | if (pm->op_pmshort) { | |
810 | if (pm->op_pmflags & PMf_SCANFIRST) { | |
811 | if (SvSCREAM(TARG)) { | |
812 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) | |
813 | goto nope; | |
814 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) | |
815 | goto nope; | |
816 | else if (pm->op_pmflags & PMf_ALL) | |
817 | goto yup; | |
818 | } | |
819 | else if (!(s = fbm_instr((unsigned char*)s, | |
820 | (unsigned char*)strend, pm->op_pmshort))) | |
821 | goto nope; | |
822 | else if (pm->op_pmflags & PMf_ALL) | |
823 | goto yup; | |
824 | if (s && rx->regback >= 0) { | |
825 | ++BmUSEFUL(pm->op_pmshort); | |
826 | s -= rx->regback; | |
827 | if (s < t) | |
828 | s = t; | |
829 | } | |
830 | else | |
831 | s = t; | |
832 | } | |
833 | else if (!multiline) { | |
bbce6d69 | 834 | if (*SvPVX(pm->op_pmshort) != *s |
835 | || (pm->op_pmslen > 1 | |
36477c24 | 836 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 | 837 | goto nope; |
a0d0e21e LW |
838 | } |
839 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { | |
840 | SvREFCNT_dec(pm->op_pmshort); | |
841 | pm->op_pmshort = Nullsv; /* opt is being useless */ | |
842 | } | |
843 | } | |
e50aee73 | 844 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 | 845 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
846 | { | |
a0d0e21e LW |
847 | curpm = pm; |
848 | if (pm->op_pmflags & PMf_ONCE) | |
849 | pm->op_pmflags |= PMf_USED; | |
850 | goto gotcha; | |
851 | } | |
852 | else | |
853 | goto ret_no; | |
854 | /*NOTREACHED*/ | |
855 | ||
856 | gotcha: | |
9212bbba | 857 | TAINT_IF(rx->exec_tainted); |
a0d0e21e LW |
858 | if (gimme == G_ARRAY) { |
859 | I32 iters, i, len; | |
860 | ||
861 | iters = rx->nparens; | |
862 | if (global && !iters) | |
863 | i = 1; | |
864 | else | |
865 | i = 0; | |
866 | EXTEND(SP, iters + i); | |
bbce6d69 | 867 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
868 | for (i = !i; i <= iters; i++) { |
869 | PUSHs(sv_newmortal()); | |
870 | /*SUPPRESS 560*/ | |
871 | if ((s = rx->startp[i]) && rx->endp[i] ) { | |
872 | len = rx->endp[i] - s; | |
873 | sv_setpvn(*SP, s, len); | |
874 | } | |
875 | } | |
876 | if (global) { | |
877 | truebase = rx->subbeg; | |
5f05dabc | 878 | strend = rx->subend; |
a0d0e21e LW |
879 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
880 | ++rx->endp[0]; | |
881 | goto play_it_again; | |
882 | } | |
4633a7c4 | 883 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
884 | RETURN; |
885 | } | |
886 | else { | |
887 | if (global) { | |
888 | MAGIC* mg = 0; | |
889 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
890 | mg = mg_find(TARG, 'g'); | |
891 | if (!mg) { | |
892 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
893 | mg = mg_find(TARG, 'g'); | |
894 | } | |
748a9306 | 895 | if (rx->startp[0]) { |
5f05dabc | 896 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 LW |
897 | if (rx->startp[0] == rx->endp[0]) |
898 | mg->mg_flags |= MGf_MINMATCH; | |
899 | else | |
900 | mg->mg_flags &= ~MGf_MINMATCH; | |
901 | } | |
a0d0e21e | 902 | } |
4633a7c4 | 903 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
904 | RETPUSHYES; |
905 | } | |
906 | ||
907 | yup: | |
9212bbba | 908 | TAINT_IF(rx->exec_tainted); |
a0d0e21e LW |
909 | ++BmUSEFUL(pm->op_pmshort); |
910 | curpm = pm; | |
911 | if (pm->op_pmflags & PMf_ONCE) | |
912 | pm->op_pmflags |= PMf_USED; | |
5f05dabc | 913 | Safefree(rx->subbase); |
914 | rx->subbase = Nullch; | |
a0d0e21e LW |
915 | if (global) { |
916 | rx->subbeg = truebase; | |
917 | rx->subend = strend; | |
918 | rx->startp[0] = s; | |
919 | rx->endp[0] = s + SvCUR(pm->op_pmshort); | |
920 | goto gotcha; | |
921 | } | |
922 | if (sawampersand) { | |
923 | char *tmps; | |
924 | ||
a0d0e21e LW |
925 | tmps = rx->subbase = savepvn(t, strend-t); |
926 | rx->subbeg = tmps; | |
927 | rx->subend = tmps + (strend-t); | |
928 | tmps = rx->startp[0] = tmps + (s - t); | |
929 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); | |
930 | } | |
4633a7c4 | 931 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
932 | RETPUSHYES; |
933 | ||
934 | nope: | |
935 | if (pm->op_pmshort) | |
936 | ++BmUSEFUL(pm->op_pmshort); | |
937 | ||
938 | ret_no: | |
c90c0ff4 | 939 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
940 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
941 | MAGIC* mg = mg_find(TARG, 'g'); | |
942 | if (mg) | |
943 | mg->mg_len = -1; | |
944 | } | |
945 | } | |
4633a7c4 | 946 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
947 | if (gimme == G_ARRAY) |
948 | RETURN; | |
949 | RETPUSHNO; | |
950 | } | |
951 | ||
952 | OP * | |
8ac85365 | 953 | do_readline(void) |
a0d0e21e | 954 | { |
11343788 | 955 | dTHR; |
a0d0e21e LW |
956 | dSP; dTARGETSTACKED; |
957 | register SV *sv; | |
958 | STRLEN tmplen = 0; | |
959 | STRLEN offset; | |
760ac839 | 960 | PerlIO *fp; |
a0d0e21e LW |
961 | register IO *io = GvIO(last_in_gv); |
962 | register I32 type = op->op_type; | |
54310121 | 963 | I32 gimme = GIMME_V; |
e79b0511 | 964 | MAGIC *mg; |
a0d0e21e | 965 | |
e79b0511 | 966 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
967 | PUSHMARK(SP); | |
968 | XPUSHs(mg->mg_obj); | |
969 | PUTBACK; | |
970 | ENTER; | |
54310121 | 971 | perl_call_method("READLINE", gimme); |
e79b0511 | 972 | LEAVE; |
973 | SPAGAIN; | |
54310121 | 974 | if (gimme == G_SCALAR) |
975 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 976 | RETURN; |
977 | } | |
a0d0e21e LW |
978 | fp = Nullfp; |
979 | if (io) { | |
980 | fp = IoIFP(io); | |
981 | if (!fp) { | |
982 | if (IoFLAGS(io) & IOf_ARGV) { | |
983 | if (IoFLAGS(io) & IOf_START) { | |
984 | IoFLAGS(io) &= ~IOf_START; | |
985 | IoLINES(io) = 0; | |
986 | if (av_len(GvAVn(last_in_gv)) < 0) { | |
987 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ | |
988 | av_push(GvAVn(last_in_gv), tmpstr); | |
989 | } | |
990 | } | |
991 | fp = nextargv(last_in_gv); | |
992 | if (!fp) { /* Note: fp != IoIFP(io) */ | |
993 | (void)do_close(last_in_gv, FALSE); /* now it does*/ | |
994 | IoFLAGS(io) |= IOf_START; | |
995 | } | |
996 | } | |
997 | else if (type == OP_GLOB) { | |
998 | SV *tmpcmd = NEWSV(55, 0); | |
999 | SV *tmpglob = POPs; | |
1000 | ENTER; | |
1001 | SAVEFREESV(tmpcmd); | |
1002 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1003 | /* since spawning off a process is a real performance hit */ | |
1004 | { | |
1005 | #include <descrip.h> | |
1006 | #include <lib$routines.h> | |
1007 | #include <nam.h> | |
1008 | #include <rmsdef.h> | |
1009 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1010 | char vmsspec[NAM$C_MAXRSS+1]; | |
1011 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1012 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1013 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1014 | PerlIO *tmpfp; |
a0d0e21e LW |
1015 | STRLEN i; |
1016 | struct dsc$descriptor_s wilddsc | |
1017 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1018 | struct dsc$descriptor_vs rsdsc | |
1019 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1020 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1021 | ||
1022 | /* We could find out if there's an explicit dev/dir or version | |
1023 | by peeking into lib$find_file's internal context at | |
1024 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1025 | but that's unsupported, so I don't want to do it now and | |
1026 | have it bite someone in the future. */ | |
1027 | strcat(tmpfnam,tmpnam(NULL)); | |
1028 | cp = SvPV(tmpglob,i); | |
1029 | for (; i; i--) { | |
1030 | if (cp[i] == ';') hasver = 1; | |
1031 | if (cp[i] == '.') { | |
1032 | if (sts) hasver = 1; | |
1033 | else sts = 1; | |
1034 | } | |
1035 | if (cp[i] == '/') { | |
1036 | hasdir = isunix = 1; | |
1037 | break; | |
748a9306 | 1038 | } |
a0d0e21e LW |
1039 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1040 | hasdir = 1; | |
1041 | break; | |
1042 | } | |
1043 | } | |
760ac839 | 1044 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e LW |
1045 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1046 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); | |
1047 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1048 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1049 | end = rstr + (unsigned long int) *rslt; | |
1050 | if (!hasver) while (*end != ';') end--; | |
1051 | *(end++) = '\n'; *end = '\0'; | |
1052 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1053 | if (hasdir) { | |
f86702cc | 1054 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1055 | begin = rstr; |
1056 | } | |
1057 | else { | |
1058 | begin = end; | |
1059 | while (*(--begin) != ']' && *begin != '>') ; | |
1060 | ++begin; | |
1061 | } | |
760ac839 | 1062 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1063 | } |
1064 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1065 | if (ok && sts != RMS$_NMF && |
1066 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1067 | if (!ok) { |
c07a80fd | 1068 | if (!(sts & 1)) { |
1069 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1070 | } | |
760ac839 | 1071 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1072 | fp = NULL; |
1073 | } | |
1074 | else { | |
760ac839 | 1075 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1076 | IoTYPE(io) = '<'; |
1077 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1078 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1079 | } |
1080 | } | |
1081 | } | |
1082 | #else /* !VMS */ | |
1083 | #ifdef DOSISH | |
67955e0c | 1084 | #ifdef OS2 |
1085 | sv_setpv(tmpcmd, "for a in "); | |
1086 | sv_catsv(tmpcmd, tmpglob); | |
1087 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1088 | #else | |
a0d0e21e LW |
1089 | sv_setpv(tmpcmd, "perlglob "); |
1090 | sv_catsv(tmpcmd, tmpglob); | |
1091 | sv_catpv(tmpcmd, " |"); | |
67955e0c | 1092 | #endif /* !OS2 */ |
1093 | #else /* !DOSISH */ | |
1094 | #if defined(CSH) | |
a0d0e21e LW |
1095 | sv_setpvn(tmpcmd, cshname, cshlen); |
1096 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
1097 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1098 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1099 | #else |
1100 | sv_setpv(tmpcmd, "echo "); | |
1101 | sv_catsv(tmpcmd, tmpglob); | |
1102 | #if 'z' - 'a' == 25 | |
1103 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1104 | #else | |
1105 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1106 | #endif | |
1107 | #endif /* !CSH */ | |
67955e0c | 1108 | #endif /* !DOSISH */ |
c07a80fd | 1109 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1110 | FALSE, 0, 0, Nullfp); | |
a0d0e21e LW |
1111 | fp = IoIFP(io); |
1112 | #endif /* !VMS */ | |
1113 | LEAVE; | |
1114 | } | |
1115 | } | |
1116 | else if (type == OP_GLOB) | |
1117 | SP--; | |
1118 | } | |
1119 | if (!fp) { | |
4633a7c4 | 1120 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e | 1121 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 | 1122 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1123 | (void)SvOK_off(TARG); |
1124 | PUSHTARG; | |
1125 | } | |
1126 | RETURN; | |
1127 | } | |
54310121 | 1128 | if (gimme == G_SCALAR) { |
a0d0e21e | 1129 | sv = TARG; |
9607fc9c | 1130 | if (SvROK(sv)) |
1131 | sv_unref(sv); | |
a0d0e21e LW |
1132 | (void)SvUPGRADE(sv, SVt_PV); |
1133 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1134 | if (!tmplen) | |
1135 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1136 | if (type == OP_RCATLINE) | |
1137 | offset = SvCUR(sv); | |
1138 | else | |
1139 | offset = 0; | |
1140 | } | |
54310121 | 1141 | else { |
1142 | sv = sv_2mortal(NEWSV(57, 80)); | |
1143 | offset = 0; | |
1144 | } | |
a0d0e21e LW |
1145 | for (;;) { |
1146 | if (!sv_gets(sv, fp, offset)) { | |
760ac839 | 1147 | PerlIO_clearerr(fp); |
a0d0e21e LW |
1148 | if (IoFLAGS(io) & IOf_ARGV) { |
1149 | fp = nextargv(last_in_gv); | |
1150 | if (fp) | |
1151 | continue; | |
1152 | (void)do_close(last_in_gv, FALSE); | |
1153 | IoFLAGS(io) |= IOf_START; | |
1154 | } | |
1155 | else if (type == OP_GLOB) { | |
5cd24f17 | 1156 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1157 | warn("internal error: glob failed"); | |
a0d0e21e | 1158 | } |
54310121 | 1159 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1160 | (void)SvOK_off(TARG); |
1161 | PUSHTARG; | |
1162 | } | |
1163 | RETURN; | |
1164 | } | |
bbce6d69 | 1165 | /* This should not be marked tainted if the fp is marked clean */ |
1166 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1167 | TAINT; | |
1168 | SvTAINTED_on(sv); | |
1169 | } | |
a0d0e21e | 1170 | IoLINES(io)++; |
71be2cbc | 1171 | SvSETMAGIC(sv); |
a0d0e21e | 1172 | XPUSHs(sv); |
a0d0e21e LW |
1173 | if (type == OP_GLOB) { |
1174 | char *tmps; | |
1175 | ||
c07a80fd | 1176 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1177 | tmps = SvEND(sv) - 1; | |
1178 | if (*tmps == *SvPVX(rs)) { | |
1179 | *tmps = '\0'; | |
1180 | SvCUR(sv)--; | |
1181 | } | |
1182 | } | |
a0d0e21e LW |
1183 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1184 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1185 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1186 | break; | |
1187 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { | |
1188 | (void)POPs; /* Unmatched wildcard? Chuck it... */ | |
1189 | continue; | |
1190 | } | |
1191 | } | |
54310121 | 1192 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1193 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1194 | SvLEN_set(sv, SvCUR(sv)+1); | |
1195 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1196 | } | |
1197 | sv = sv_2mortal(NEWSV(58, 80)); | |
1198 | continue; | |
1199 | } | |
54310121 | 1200 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1201 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1202 | if (SvCUR(sv) < 60) | |
1203 | SvLEN_set(sv, 80); | |
1204 | else | |
1205 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1206 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1207 | } | |
1208 | RETURN; | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | PP(pp_enter) | |
1213 | { | |
1214 | dSP; | |
1215 | register CONTEXT *cx; | |
54310121 | 1216 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e | 1217 | |
54310121 | 1218 | if (gimme == -1) { |
1219 | if (cxstack_ix >= 0) | |
1220 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1221 | else | |
1222 | gimme = G_SCALAR; | |
1223 | } | |
a0d0e21e LW |
1224 | |
1225 | ENTER; | |
1226 | ||
1227 | SAVETMPS; | |
1228 | PUSHBLOCK(cx, CXt_BLOCK, sp); | |
1229 | ||
1230 | RETURN; | |
1231 | } | |
1232 | ||
1233 | PP(pp_helem) | |
1234 | { | |
1235 | dSP; | |
760ac839 | 1236 | HE* he; |
ae77835f | 1237 | SV **svp; |
a0d0e21e | 1238 | SV *keysv = POPs; |
a0d0e21e | 1239 | HV *hv = (HV*)POPs; |
68dc0745 | 1240 | U32 lval = op->op_flags & OPf_MOD; |
1241 | U32 defer = op->op_private & OPpLVAL_DEFER; | |
a0d0e21e | 1242 | |
ae77835f MB |
1243 | if (SvTYPE(hv) == SVt_PVHV) { |
1244 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1245 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1246 | } |
1247 | else if (SvTYPE(hv) == SVt_PVAV) { | |
97fcbf96 | 1248 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1249 | } |
c750a3ec | 1250 | else { |
a0d0e21e | 1251 | RETPUSHUNDEF; |
c750a3ec | 1252 | } |
a0d0e21e | 1253 | if (lval) { |
97fcbf96 | 1254 | if (!svp || *svp == &sv_undef) { |
68dc0745 | 1255 | SV* lv; |
1256 | SV* key2; | |
1257 | if (!defer) | |
1258 | DIE(no_helem, SvPV(keysv, na)); | |
1259 | lv = sv_newmortal(); | |
1260 | sv_upgrade(lv, SVt_PVLV); | |
1261 | LvTYPE(lv) = 'y'; | |
1262 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1263 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1264 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1265 | LvTARGLEN(lv) = 1; | |
1266 | PUSHs(lv); | |
1267 | RETURN; | |
1268 | } | |
5f05dabc | 1269 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f MB |
1270 | if (HvNAME(hv) && isGV(*svp)) |
1271 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); | |
5f05dabc | 1272 | else |
ae77835f | 1273 | save_svref(svp); |
5f05dabc | 1274 | } |
1275 | else if (op->op_private & OPpDEREF) | |
ae77835f | 1276 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e LW |
1277 | } |
1278 | PUSHs(svp ? *svp : &sv_undef); | |
1279 | RETURN; | |
1280 | } | |
1281 | ||
1282 | PP(pp_leave) | |
1283 | { | |
1284 | dSP; | |
1285 | register CONTEXT *cx; | |
1286 | register SV **mark; | |
1287 | SV **newsp; | |
1288 | PMOP *newpm; | |
1289 | I32 gimme; | |
1290 | ||
1291 | if (op->op_flags & OPf_SPECIAL) { | |
1292 | cx = &cxstack[cxstack_ix]; | |
1293 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ | |
1294 | } | |
1295 | ||
1296 | POPBLOCK(cx,newpm); | |
1297 | ||
54310121 | 1298 | gimme = OP_GIMME(op, -1); |
1299 | if (gimme == -1) { | |
1300 | if (cxstack_ix >= 0) | |
1301 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1302 | else | |
1303 | gimme = G_SCALAR; | |
1304 | } | |
a0d0e21e | 1305 | |
a1f49e72 | 1306 | TAINT_NOT; |
54310121 | 1307 | if (gimme == G_VOID) |
1308 | SP = newsp; | |
1309 | else if (gimme == G_SCALAR) { | |
1310 | MARK = newsp + 1; | |
1311 | if (MARK <= SP) | |
1312 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1313 | *MARK = TOPs; | |
1314 | else | |
1315 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1316 | else { |
54310121 | 1317 | MEXTEND(mark,0); |
1318 | *MARK = &sv_undef; | |
a0d0e21e | 1319 | } |
54310121 | 1320 | SP = MARK; |
a0d0e21e | 1321 | } |
54310121 | 1322 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1323 | /* in case LEAVE wipes old return values */ |
1324 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1325 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1326 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1327 | TAINT_NOT; /* Each item is independent */ |
1328 | } | |
1329 | } | |
a0d0e21e LW |
1330 | } |
1331 | curpm = newpm; /* Don't pop $1 et al till now */ | |
1332 | ||
1333 | LEAVE; | |
1334 | ||
1335 | RETURN; | |
1336 | } | |
1337 | ||
1338 | PP(pp_iter) | |
1339 | { | |
1340 | dSP; | |
1341 | register CONTEXT *cx; | |
5f05dabc | 1342 | SV* sv; |
4633a7c4 | 1343 | AV* av; |
a0d0e21e LW |
1344 | |
1345 | EXTEND(sp, 1); | |
1346 | cx = &cxstack[cxstack_ix]; | |
1347 | if (cx->cx_type != CXt_LOOP) | |
1348 | DIE("panic: pp_iter"); | |
1349 | ||
4633a7c4 | 1350 | av = cx->blk_loop.iterary; |
71be2cbc | 1351 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1352 | RETPUSHNO; |
a0d0e21e | 1353 | |
7a4c00b4 | 1354 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1355 | |
5f05dabc | 1356 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e | 1357 | SvTEMP_off(sv); |
a0d0e21e | 1358 | else |
5f05dabc | 1359 | sv = &sv_undef; |
1360 | if (av != curstack && SvIMMORTAL(sv)) { | |
1361 | SV *lv = cx->blk_loop.iterlval; | |
71be2cbc | 1362 | if (lv && SvREFCNT(lv) > 1) { |
1363 | SvREFCNT_dec(lv); | |
1364 | lv = Nullsv; | |
1365 | } | |
5f05dabc | 1366 | if (lv) |
1367 | SvREFCNT_dec(LvTARG(lv)); | |
1368 | else { | |
68dc0745 | 1369 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1370 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1371 | LvTYPE(lv) = 'y'; |
68dc0745 | 1372 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1373 | } |
1374 | LvTARG(lv) = SvREFCNT_inc(av); | |
1375 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1376 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1377 | sv = (SV*)lv; |
1378 | } | |
a0d0e21e | 1379 | |
7a4c00b4 | 1380 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1381 | RETPUSHYES; |
1382 | } | |
1383 | ||
1384 | PP(pp_subst) | |
1385 | { | |
1386 | dSP; dTARG; | |
1387 | register PMOP *pm = cPMOP; | |
1388 | PMOP *rpm = pm; | |
1389 | register SV *dstr; | |
1390 | register char *s; | |
1391 | char *strend; | |
1392 | register char *m; | |
1393 | char *c; | |
1394 | register char *d; | |
1395 | STRLEN clen; | |
1396 | I32 iters = 0; | |
1397 | I32 maxiters; | |
1398 | register I32 i; | |
1399 | bool once; | |
71be2cbc | 1400 | bool rxtainted; |
a0d0e21e LW |
1401 | char *orig; |
1402 | I32 safebase; | |
1403 | register REGEXP *rx = pm->op_pmregexp; | |
1404 | STRLEN len; | |
1405 | int force_on_match = 0; | |
4633a7c4 | 1406 | I32 oldsave = savestack_ix; |
a0d0e21e | 1407 | |
5cd24f17 | 1408 | /* known replacement string? */ |
1409 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
a0d0e21e LW |
1410 | if (op->op_flags & OPf_STACKED) |
1411 | TARG = POPs; | |
1412 | else { | |
1413 | TARG = GvSV(defgv); | |
1414 | EXTEND(SP,1); | |
1415 | } | |
68dc0745 | 1416 | if (SvREADONLY(TARG) |
1417 | || (SvTYPE(TARG) > SVt_PVLV | |
1418 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
1419 | croak(no_modify); | |
a0d0e21e | 1420 | s = SvPV(TARG, len); |
68dc0745 | 1421 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1422 | force_on_match = 1; |
9212bbba | 1423 | TAINT_NOT; |
a0d0e21e LW |
1424 | |
1425 | force_it: | |
1426 | if (!pm || !s) | |
1427 | DIE("panic: do_subst"); | |
1428 | ||
1429 | strend = s + len; | |
1430 | maxiters = (strend - s) + 10; | |
1431 | ||
1432 | if (!rx->prelen && curpm) { | |
1433 | pm = curpm; | |
1434 | rx = pm->op_pmregexp; | |
1435 | } | |
5f05dabc | 1436 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e LW |
1437 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1438 | SAVEINT(multiline); | |
1439 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
1440 | } | |
1441 | orig = m = s; | |
1442 | if (pm->op_pmshort) { | |
1443 | if (pm->op_pmflags & PMf_SCANFIRST) { | |
1444 | if (SvSCREAM(TARG)) { | |
1445 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) | |
1446 | goto nope; | |
1447 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) | |
1448 | goto nope; | |
1449 | } | |
1450 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, | |
1451 | pm->op_pmshort))) | |
1452 | goto nope; | |
1453 | if (s && rx->regback >= 0) { | |
1454 | ++BmUSEFUL(pm->op_pmshort); | |
1455 | s -= rx->regback; | |
1456 | if (s < m) | |
1457 | s = m; | |
1458 | } | |
1459 | else | |
1460 | s = m; | |
1461 | } | |
1462 | else if (!multiline) { | |
bbce6d69 | 1463 | if (*SvPVX(pm->op_pmshort) != *s |
1464 | || (pm->op_pmslen > 1 | |
36477c24 | 1465 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 | 1466 | goto nope; |
a0d0e21e LW |
1467 | } |
1468 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { | |
1469 | SvREFCNT_dec(pm->op_pmshort); | |
1470 | pm->op_pmshort = Nullsv; /* opt is being useless */ | |
1471 | } | |
1472 | } | |
71be2cbc | 1473 | |
1474 | /* only replace once? */ | |
a0d0e21e | 1475 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1476 | |
1477 | /* known replacement string? */ | |
5cd24f17 | 1478 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1479 | |
1480 | /* can do inplace substitution? */ | |
137443ea | 1481 | if (c && clen <= rx->minlen && safebase) { |
71be2cbc | 1482 | if (! pregexec(rx, s, strend, orig, 0, |
1483 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { | |
1484 | PUSHs(&sv_no); | |
1485 | LEAVE_SCOPE(oldsave); | |
1486 | RETURN; | |
1487 | } | |
1488 | if (force_on_match) { | |
1489 | force_on_match = 0; | |
1490 | s = SvPV_force(TARG, len); | |
1491 | goto force_it; | |
1492 | } | |
71be2cbc | 1493 | d = s; |
1494 | curpm = pm; | |
1495 | SvSCREAM_off(TARG); /* disable possible screamer */ | |
1496 | if (once) { | |
1497 | rxtainted = rx->exec_tainted; | |
1498 | m = rx->startp[0]; | |
1499 | d = rx->endp[0]; | |
1500 | s = orig; | |
1501 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1502 | if (clen) { | |
1503 | Copy(c, m, clen, char); | |
1504 | m += clen; | |
a0d0e21e | 1505 | } |
71be2cbc | 1506 | i = strend - d; |
1507 | if (i > 0) { | |
1508 | Move(d, m, i, char); | |
1509 | m += i; | |
a0d0e21e | 1510 | } |
71be2cbc | 1511 | *m = '\0'; |
1512 | SvCUR_set(TARG, m - s); | |
1513 | } | |
1514 | /*SUPPRESS 560*/ | |
1515 | else if (i = m - s) { /* faster from front */ | |
1516 | d -= clen; | |
1517 | m = d; | |
1518 | sv_chop(TARG, d-i); | |
1519 | s += i; | |
1520 | while (i--) | |
1521 | *--d = *--s; | |
1522 | if (clen) | |
1523 | Copy(c, m, clen, char); | |
1524 | } | |
1525 | else if (clen) { | |
1526 | d -= clen; | |
1527 | sv_chop(TARG, d); | |
1528 | Copy(c, d, clen, char); | |
1529 | } | |
1530 | else { | |
1531 | sv_chop(TARG, d); | |
1532 | } | |
9212bbba | 1533 | TAINT_IF(rxtainted); |
71be2cbc | 1534 | PUSHs(&sv_yes); |
1535 | } | |
1536 | else { | |
1537 | rxtainted = 0; | |
1538 | do { | |
1539 | if (iters++ > maxiters) | |
1540 | DIE("Substitution loop"); | |
1541 | rxtainted |= rx->exec_tainted; | |
1542 | m = rx->startp[0]; | |
1543 | /*SUPPRESS 560*/ | |
1544 | if (i = m - s) { | |
1545 | if (s != d) | |
1546 | Move(s, d, i, char); | |
1547 | d += i; | |
a0d0e21e | 1548 | } |
71be2cbc | 1549 | if (clen) { |
1550 | Copy(c, d, clen, char); | |
1551 | d += clen; | |
1552 | } | |
1553 | s = rx->endp[0]; | |
1554 | } while (pregexec(rx, s, strend, orig, s == m, | |
1555 | Nullsv, TRUE)); /* don't match same null twice */ | |
1556 | if (s != d) { | |
1557 | i = strend - s; | |
1558 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1559 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1560 | } |
9212bbba | 1561 | TAINT_IF(rxtainted); |
71be2cbc | 1562 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1563 | } |
71be2cbc | 1564 | (void)SvPOK_only(TARG); |
1565 | SvSETMAGIC(TARG); | |
9212bbba | 1566 | SvTAINT(TARG); |
71be2cbc | 1567 | LEAVE_SCOPE(oldsave); |
1568 | RETURN; | |
a0d0e21e | 1569 | } |
71be2cbc | 1570 | |
e50aee73 | 1571 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc | 1572 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e LW |
1573 | if (force_on_match) { |
1574 | force_on_match = 0; | |
1575 | s = SvPV_force(TARG, len); | |
1576 | goto force_it; | |
1577 | } | |
71be2cbc | 1578 | rxtainted = rx->exec_tainted; |
a0d0e21e LW |
1579 | dstr = NEWSV(25, sv_len(TARG)); |
1580 | sv_setpvn(dstr, m, s-m); | |
1581 | curpm = pm; | |
1582 | if (!c) { | |
1583 | register CONTEXT *cx; | |
1584 | PUSHSUBST(cx); | |
1585 | RETURNOP(cPMOP->op_pmreplroot); | |
1586 | } | |
1587 | do { | |
1588 | if (iters++ > maxiters) | |
1589 | DIE("Substitution loop"); | |
71be2cbc | 1590 | rxtainted |= rx->exec_tainted; |
a0d0e21e LW |
1591 | if (rx->subbase && rx->subbase != orig) { |
1592 | m = s; | |
1593 | s = orig; | |
1594 | orig = rx->subbase; | |
1595 | s = orig + (m - s); | |
1596 | strend = s + (strend - m); | |
1597 | } | |
1598 | m = rx->startp[0]; | |
1599 | sv_catpvn(dstr, s, m-s); | |
1600 | s = rx->endp[0]; | |
1601 | if (clen) | |
1602 | sv_catpvn(dstr, c, clen); | |
1603 | if (once) | |
1604 | break; | |
5f05dabc | 1605 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e | 1606 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1607 | |
9212bbba CS |
1608 | TAINT_IF(rxtainted); |
1609 | ||
4633a7c4 | 1610 | (void)SvOOK_off(TARG); |
cb0b1708 | 1611 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1612 | SvPVX(TARG) = SvPVX(dstr); |
1613 | SvCUR_set(TARG, SvCUR(dstr)); | |
1614 | SvLEN_set(TARG, SvLEN(dstr)); | |
1615 | SvPVX(dstr) = 0; | |
1616 | sv_free(dstr); | |
1617 | ||
a0d0e21e LW |
1618 | (void)SvPOK_only(TARG); |
1619 | SvSETMAGIC(TARG); | |
9212bbba | 1620 | SvTAINT(TARG); |
a0d0e21e | 1621 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 | 1622 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1623 | RETURN; |
1624 | } | |
5cd24f17 | 1625 | goto ret_no; |
a0d0e21e LW |
1626 | |
1627 | nope: | |
1628 | ++BmUSEFUL(pm->op_pmshort); | |
5cd24f17 | 1629 | |
1630 | ret_no: | |
a0d0e21e | 1631 | PUSHs(&sv_no); |
4633a7c4 | 1632 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1633 | RETURN; |
1634 | } | |
1635 | ||
1636 | PP(pp_grepwhile) | |
1637 | { | |
1638 | dSP; | |
1639 | ||
1640 | if (SvTRUEx(POPs)) | |
1641 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; | |
1642 | ++*markstack_ptr; | |
1643 | LEAVE; /* exit inner scope */ | |
1644 | ||
1645 | /* All done yet? */ | |
1646 | if (stack_base + *markstack_ptr > sp) { | |
1647 | I32 items; | |
54310121 | 1648 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1649 | |
1650 | LEAVE; /* exit outer scope */ | |
1651 | (void)POPMARK; /* pop src */ | |
1652 | items = --*markstack_ptr - markstack_ptr[-1]; | |
1653 | (void)POPMARK; /* pop dst */ | |
1654 | SP = stack_base + POPMARK; /* pop original mark */ | |
54310121 | 1655 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1656 | dTARGET; |
1657 | XPUSHi(items); | |
a0d0e21e | 1658 | } |
54310121 | 1659 | else if (gimme == G_ARRAY) |
1660 | SP += items; | |
a0d0e21e LW |
1661 | RETURN; |
1662 | } | |
1663 | else { | |
1664 | SV *src; | |
1665 | ||
1666 | ENTER; /* enter inner scope */ | |
1667 | SAVESPTR(curpm); | |
1668 | ||
1669 | src = stack_base[*markstack_ptr]; | |
1670 | SvTEMP_off(src); | |
1671 | GvSV(defgv) = src; | |
1672 | ||
1673 | RETURNOP(cLOGOP->op_other); | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | PP(pp_leavesub) | |
1678 | { | |
1679 | dSP; | |
1680 | SV **mark; | |
1681 | SV **newsp; | |
1682 | PMOP *newpm; | |
1683 | I32 gimme; | |
1684 | register CONTEXT *cx; | |
f86702cc | 1685 | struct block_sub cxsub; |
a0d0e21e LW |
1686 | |
1687 | POPBLOCK(cx,newpm); | |
f86702cc | 1688 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1689 | ||
a1f49e72 | 1690 | TAINT_NOT; |
a0d0e21e LW |
1691 | if (gimme == G_SCALAR) { |
1692 | MARK = newsp + 1; | |
1693 | if (MARK <= SP) | |
f86702cc | 1694 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e | 1695 | else { |
f86702cc | 1696 | MEXTEND(MARK, 0); |
a0d0e21e LW |
1697 | *MARK = &sv_undef; |
1698 | } | |
1699 | SP = MARK; | |
1700 | } | |
54310121 | 1701 | else if (gimme == G_ARRAY) { |
f86702cc | 1702 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1703 | if (!SvTEMP(*MARK)) { |
f86702cc | 1704 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1705 | TAINT_NOT; /* Each item is independent */ |
1706 | } | |
f86702cc | 1707 | } |
a0d0e21e | 1708 | } |
f86702cc | 1709 | PUTBACK; |
1710 | ||
1711 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
1712 | curpm = newpm; /* ... and pop $1 et al */ | |
a0d0e21e LW |
1713 | |
1714 | LEAVE; | |
a0d0e21e LW |
1715 | return pop_return(); |
1716 | } | |
1717 | ||
3de9ffa1 | 1718 | static CV * |
8ac85365 | 1719 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1720 | { |
1721 | dTHR; | |
4f01c5a5 | 1722 | SV *oldsv = *svp; |
3de9ffa1 | 1723 | GV *gv; |
3de9ffa1 | 1724 | |
4f01c5a5 MB |
1725 | *svp = GvSV(DBsub); |
1726 | save_item(*svp); | |
3de9ffa1 MB |
1727 | gv = CvGV(cv); |
1728 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1729 | || strEQ(GvNAME(gv), "END") | |
1730 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1731 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) | |
1732 | && (gv = (GV*)oldsv) ))) { | |
1733 | /* Use GV from the stack as a fallback. */ | |
1734 | /* GV is potentially non-unique, or contain different CV. */ | |
4f01c5a5 | 1735 | sv_setsv(*svp, newRV((SV*)cv)); |
3de9ffa1 MB |
1736 | } |
1737 | else { | |
4f01c5a5 | 1738 | gv_efullname3(*svp, gv, Nullch); |
3de9ffa1 MB |
1739 | } |
1740 | cv = GvCV(DBsub); | |
1741 | if (CvXSUB(cv)) | |
1742 | curcopdb = curcop; | |
1743 | return cv; | |
1744 | } | |
1745 | ||
a0d0e21e LW |
1746 | PP(pp_entersub) |
1747 | { | |
1748 | dSP; dPOPss; | |
1749 | GV *gv; | |
1750 | HV *stash; | |
1751 | register CV *cv; | |
1752 | register CONTEXT *cx; | |
5d94fbed | 1753 | I32 gimme; |
07055b4c | 1754 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
1755 | |
1756 | if (!sv) | |
1757 | DIE("Not a CODE reference"); | |
1758 | switch (SvTYPE(sv)) { | |
1759 | default: | |
1760 | if (!SvROK(sv)) { | |
748a9306 LW |
1761 | char *sym; |
1762 | ||
fb73857a | 1763 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1764 | if (hasargs) | |
1765 | SP = stack_base + POPMARK; | |
a0d0e21e | 1766 | RETURN; |
fb73857a | 1767 | } |
15ff848f CS |
1768 | if (SvGMAGICAL(sv)) { |
1769 | mg_get(sv); | |
1770 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
1771 | } | |
1772 | else | |
1773 | sym = SvPV(sv, na); | |
1774 | if (!sym) | |
a0d0e21e LW |
1775 | DIE(no_usym, "a subroutine"); |
1776 | if (op->op_private & HINT_STRICT_REFS) | |
748a9306 LW |
1777 | DIE(no_symref, sym, "a subroutine"); |
1778 | cv = perl_get_cv(sym, TRUE); | |
a0d0e21e LW |
1779 | break; |
1780 | } | |
1781 | cv = (CV*)SvRV(sv); | |
1782 | if (SvTYPE(cv) == SVt_PVCV) | |
1783 | break; | |
1784 | /* FALL THROUGH */ | |
1785 | case SVt_PVHV: | |
1786 | case SVt_PVAV: | |
1787 | DIE("Not a CODE reference"); | |
1788 | case SVt_PVCV: | |
1789 | cv = (CV*)sv; | |
1790 | break; | |
1791 | case SVt_PVGV: | |
8ebc5c01 | 1792 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e LW |
1793 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1794 | break; | |
1795 | } | |
1796 | ||
1797 | ENTER; | |
1798 | SAVETMPS; | |
1799 | ||
1800 | retry: | |
1801 | if (!cv) | |
1802 | DIE("Not a CODE reference"); | |
1803 | ||
1804 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
44a8e56a | 1805 | GV* autogv; |
1806 | SV* subname; | |
1807 | ||
1808 | /* anonymous or undef'd function leaves us no recourse */ | |
1809 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
1810 | DIE("Undefined subroutine called"); | |
1811 | /* autoloaded stub? */ | |
1812 | if (cv != GvCV(gv)) { | |
1813 | cv = GvCV(gv); | |
1814 | goto retry; | |
a0d0e21e | 1815 | } |
44a8e56a | 1816 | /* should call AUTOLOAD now? */ |
54310121 | 1817 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1818 | FALSE))) | |
1819 | { | |
44a8e56a | 1820 | cv = GvCV(autogv); |
1821 | goto retry; | |
a0d0e21e | 1822 | } |
44a8e56a | 1823 | /* sorry */ |
1824 | subname = sv_newmortal(); | |
1825 | gv_efullname3(subname, gv, Nullch); | |
1826 | DIE("Undefined subroutine &%s called", SvPVX(subname)); | |
a0d0e21e LW |
1827 | } |
1828 | ||
54310121 | 1829 | gimme = GIMME_V; |
3de9ffa1 | 1830 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 | 1831 | cv = get_db_sub(&sv, cv); |
3de9ffa1 MB |
1832 | if (!cv) |
1833 | DIE("No DBsub routine"); | |
a0d0e21e | 1834 | |
11343788 | 1835 | #ifdef USE_THREADS |
3de9ffa1 MB |
1836 | /* |
1837 | * First we need to check if the sub or method requires locking. | |
1838 | * If so, we gain a lock on the CV or the first argument, as | |
1839 | * appropriate. This has to be inline because for FAKE_THREADS, | |
1840 | * COND_WAIT inlines code to reschedule by returning a new op. | |
1841 | */ | |
11343788 | 1842 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
1843 | if (CvFLAGS(cv) & CVf_LOCKED) { |
1844 | MAGIC *mg; | |
1845 | if (CvFLAGS(cv) & CVf_METHOD) { | |
1846 | if (SP > stack_base + TOPMARK) | |
1847 | sv = *(stack_base + TOPMARK + 1); | |
1848 | else { | |
1849 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1850 | croak("no argument for locked method call"); | |
1851 | } | |
1852 | if (SvROK(sv)) | |
1853 | sv = SvRV(sv); | |
1854 | } | |
1855 | else { | |
1856 | sv = (SV*)cv; | |
1857 | } | |
1858 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1859 | mg = condpair_magic(sv); | |
1860 | MUTEX_LOCK(MgMUTEXP(mg)); | |
1861 | if (MgOWNER(mg) == thr) | |
1862 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
1863 | else { | |
1864 | while (MgOWNER(mg)) | |
1865 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
1866 | MgOWNER(mg) = thr; | |
1fd28e87 MB |
1867 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1868 | thr, sv);) | |
77a005ab | 1869 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e | 1870 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab | 1871 | save_destructor(unlock_condpair, sv); |
11343788 | 1872 | } |
77a005ab | 1873 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 1874 | } |
3de9ffa1 MB |
1875 | /* |
1876 | * Now we have permission to enter the sub, we must distinguish | |
1877 | * four cases. (0) It's an XSUB (in which case we don't care | |
1878 | * about ownership); (1) it's ours already (and we're recursing); | |
1879 | * (2) it's free (but we may already be using a cached clone); | |
1880 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
1881 | * Case (2) means we look for a clone--if we have one, use it | |
1882 | * otherwise grab ownership of cv. Case (3) means we look for a | |
1883 | * clone (for non-XSUBs) and have to create one if we don't | |
1884 | * already have one. | |
1885 | * Why look for a clone in case (2) when we could just grab | |
1886 | * ownership of cv straight away? Well, we could be recursing, | |
1887 | * i.e. we originally tried to enter cv while another thread | |
1888 | * owned it (hence we used a clone) but it has been freed up | |
1889 | * and we're now recursing into it. It may or may not be "better" | |
1890 | * to use the clone but at least CvDEPTH can be trusted. | |
1891 | */ | |
1892 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
1893 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 1894 | else { |
3de9ffa1 MB |
1895 | /* Case (2) or (3) */ |
1896 | SV **svp; | |
1897 | ||
11343788 | 1898 | /* |
3de9ffa1 MB |
1899 | * XXX Might it be better to release CvMUTEXP(cv) while we |
1900 | * do the hv_fetch? We might find someone has pinched it | |
1901 | * when we look again, in which case we would be in case | |
1902 | * (3) instead of (2) so we'd have to clone. Would the fact | |
1903 | * that we released the mutex more quickly make up for this? | |
1904 | */ | |
1905 | svp = hv_fetch(cvcache, (char *)cv, sizeof(cv), FALSE); | |
1906 | if (svp) { | |
1907 | /* We already have a clone to use */ | |
11343788 | 1908 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 MB |
1909 | cv = *(CV**)svp; |
1910 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
1911 | "entersub: %p already has clone %p:%s\n", |
1912 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
1913 | CvOWNER(cv) = thr; |
1914 | SvREFCNT_inc(cv); | |
1915 | if (CvDEPTH(cv) == 0) | |
1916 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
1917 | } | |
11343788 | 1918 | else { |
3de9ffa1 MB |
1919 | /* (2) => grab ownership of cv. (3) => make clone */ |
1920 | if (!CvOWNER(cv)) { | |
1921 | CvOWNER(cv) = thr; | |
1922 | SvREFCNT_inc(cv); | |
11343788 | 1923 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 | 1924 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
1925 | "entersub: %p grabbing %p:%s in stash %s\n", |
1926 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
1927 | HvNAME(CvSTASH(cv)) : "(none)")); |
1928 | } else { | |
1929 | /* Make a new clone. */ | |
1930 | CV *clonecv; | |
1931 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
1932 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1933 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
1934 | "entersub: %p cloning %p:%s\n", |
1935 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
1936 | /* |
1937 | * We're creating a new clone so there's no race | |
1938 | * between the original MUTEX_UNLOCK and the | |
1939 | * SvREFCNT_inc since no one will be trying to undef | |
1940 | * it out from underneath us. At least, I don't think | |
1941 | * there's a race... | |
1942 | */ | |
1943 | clonecv = cv_clone(cv); | |
1944 | SvREFCNT_dec(cv); /* finished with this */ | |
1945 | hv_store(cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); | |
1946 | CvOWNER(clonecv) = thr; | |
1947 | cv = clonecv; | |
11343788 | 1948 | SvREFCNT_inc(cv); |
11343788 | 1949 | } |
3de9ffa1 MB |
1950 | DEBUG_L(if (CvDEPTH(cv) != 0) |
1951 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", | |
1952 | CvDEPTH(cv));); | |
1953 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 1954 | } |
3de9ffa1 | 1955 | } |
11343788 MB |
1956 | #endif /* USE_THREADS */ |
1957 | ||
1958 | gimme = GIMME; | |
1959 | ||
a0d0e21e LW |
1960 | if (CvXSUB(cv)) { |
1961 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 1962 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
1963 | dMARK; |
1964 | register I32 items = SP - MARK; | |
67955e0c | 1965 | /* We dont worry to copy from @_. */ |
a0d0e21e LW |
1966 | while (sp > mark) { |
1967 | sp[1] = sp[0]; | |
1968 | sp--; | |
1969 | } | |
1970 | stack_sp = mark + 1; | |
ecfc5424 AD |
1971 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1972 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
1973 | MARK - stack_base + 1, | |
1974 | items); | |
a0d0e21e LW |
1975 | stack_sp = stack_base + items; |
1976 | } | |
1977 | else { | |
748a9306 LW |
1978 | I32 markix = TOPMARK; |
1979 | ||
a0d0e21e | 1980 | PUTBACK; |
67955e0c | 1981 | |
1982 | if (!hasargs) { | |
1983 | /* Need to copy @_ to stack. Alternative may be to | |
1984 | * switch stack to @_, and copy return values | |
1985 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
1986 | AV* av; |
1987 | I32 items; | |
1988 | #ifdef USE_THREADS | |
1989 | av = (AV*)curpad[0]; | |
1990 | #else | |
1991 | av = GvAV(defgv); | |
1992 | #endif /* USE_THREADS */ | |
1993 | items = AvFILL(av) + 1; | |
67955e0c | 1994 | |
1995 | if (items) { | |
1996 | /* Mark is at the end of the stack. */ | |
1997 | EXTEND(sp, items); | |
1998 | Copy(AvARRAY(av), sp + 1, items, SV*); | |
1999 | sp += items; | |
2000 | PUTBACK ; | |
2001 | } | |
2002 | } | |
2003 | if (curcopdb) { /* We assume that the first | |
2004 | XSUB in &DB::sub is the | |
2005 | called one. */ | |
2006 | SAVESPTR(curcop); | |
2007 | curcop = curcopdb; | |
2008 | curcopdb = NULL; | |
2009 | } | |
2010 | /* Do we need to open block here? XXXX */ | |
a0d0e21e | 2011 | (void)(*CvXSUB(cv))(cv); |
748a9306 LW |
2012 | |
2013 | /* Enforce some sanity in scalar context. */ | |
5d94fbed | 2014 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 LW |
2015 | if (markix > stack_sp - stack_base) |
2016 | *(stack_base + markix) = &sv_undef; | |
2017 | else | |
2018 | *(stack_base + markix) = *stack_sp; | |
2019 | stack_sp = stack_base + markix; | |
2020 | } | |
a0d0e21e LW |
2021 | } |
2022 | LEAVE; | |
2023 | return NORMAL; | |
2024 | } | |
2025 | else { | |
2026 | dMARK; | |
2027 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2028 | AV* padlist = CvPADLIST(cv); |
2029 | SV** svp = AvARRAY(padlist); | |
2030 | push_return(op->op_next); | |
2031 | PUSHBLOCK(cx, CXt_SUB, MARK); | |
2032 | PUSHSUB(cx); | |
2033 | CvDEPTH(cv)++; | |
2034 | if (CvDEPTH(cv) < 2) | |
2035 | (void)SvREFCNT_inc(cv); | |
2036 | else { /* save temporaries on recursion? */ | |
5f05dabc | 2037 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 | 2038 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a | 2039 | sub_crush_depth(cv); |
a0d0e21e LW |
2040 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
2041 | AV *av; | |
2042 | AV *newpad = newAV(); | |
4aa0a1f7 | 2043 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e LW |
2044 | I32 ix = AvFILL((AV*)svp[1]); |
2045 | svp = AvARRAY(svp[0]); | |
748a9306 | 2046 | for ( ;ix > 0; ix--) { |
a0d0e21e | 2047 | if (svp[ix] != &sv_undef) { |
748a9306 | 2048 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2049 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2050 | || *name == '&') /* anonymous code? */ | |
2051 | { | |
2052 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2053 | } |
2054 | else { /* our own lexical */ | |
2055 | if (*name == '@') | |
2056 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2057 | else if (*name == '%') | |
2058 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2059 | else | |
2060 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2061 | SvPADMY_on(sv); | |
2062 | } | |
a0d0e21e LW |
2063 | } |
2064 | else { | |
748a9306 | 2065 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2066 | SvPADTMP_on(sv); |
2067 | } | |
2068 | } | |
2069 | av = newAV(); /* will be @_ */ | |
2070 | av_extend(av, 0); | |
2071 | av_store(newpad, 0, (SV*)av); | |
2072 | AvFLAGS(av) = AVf_REIFY; | |
2073 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
2074 | AvFILL(padlist) = CvDEPTH(cv); | |
2075 | svp = AvARRAY(padlist); | |
2076 | } | |
2077 | } | |
6d4ff0d2 MB |
2078 | #ifdef USE_THREADS |
2079 | if (!hasargs) { | |
a0d0e21e | 2080 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 MB |
2081 | |
2082 | items = AvFILL(av) + 1; | |
2083 | if (items) { | |
2084 | /* Mark is at the end of the stack. */ | |
2085 | EXTEND(sp, items); | |
2086 | Copy(AvARRAY(av), sp + 1, items, SV*); | |
2087 | sp += items; | |
2088 | PUTBACK ; | |
2089 | } | |
2090 | } | |
2091 | #endif /* USE_THREADS */ | |
2092 | SAVESPTR(curpad); | |
2093 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
2094 | #ifndef USE_THREADS | |
2095 | if (hasargs) | |
2096 | #endif /* USE_THREADS */ | |
2097 | { | |
2098 | AV* av; | |
a0d0e21e LW |
2099 | SV** ary; |
2100 | ||
77a005ab | 2101 | #if 0 |
0f15f207 MB |
2102 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2103 | "%p entersub preparing @_\n", thr)); | |
77a005ab | 2104 | #endif |
6d4ff0d2 | 2105 | av = (AV*)curpad[0]; |
a0d0e21e LW |
2106 | if (AvREAL(av)) { |
2107 | av_clear(av); | |
2108 | AvREAL_off(av); | |
2109 | } | |
6d4ff0d2 | 2110 | #ifndef USE_THREADS |
a0d0e21e | 2111 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 | 2112 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 MB |
2113 | #endif /* USE_THREADS */ |
2114 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2115 | ++MARK; |
2116 | ||
2117 | if (items > AvMAX(av) + 1) { | |
2118 | ary = AvALLOC(av); | |
2119 | if (AvARRAY(av) != ary) { | |
2120 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2121 | SvPVX(av) = (char*)ary; | |
2122 | } | |
2123 | if (items > AvMAX(av) + 1) { | |
2124 | AvMAX(av) = items - 1; | |
2125 | Renew(ary,items,SV*); | |
2126 | AvALLOC(av) = ary; | |
2127 | SvPVX(av) = (char*)ary; | |
2128 | } | |
2129 | } | |
2130 | Copy(MARK,AvARRAY(av),items,SV*); | |
2131 | AvFILL(av) = items - 1; | |
2132 | ||
2133 | while (items--) { | |
2134 | if (*MARK) | |
2135 | SvTEMP_off(*MARK); | |
2136 | MARK++; | |
2137 | } | |
2138 | } | |
77a005ab | 2139 | #if 0 |
0f15f207 MB |
2140 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2141 | "%p entersub returning %p\n", thr, CvSTART(cv))); | |
77a005ab | 2142 | #endif |
a0d0e21e LW |
2143 | RETURNOP(CvSTART(cv)); |
2144 | } | |
2145 | } | |
2146 | ||
44a8e56a | 2147 | void |
8ac85365 | 2148 | sub_crush_depth(CV *cv) |
44a8e56a | 2149 | { |
2150 | if (CvANON(cv)) | |
2151 | warn("Deep recursion on anonymous subroutine"); | |
2152 | else { | |
2153 | SV* tmpstr = sv_newmortal(); | |
2154 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
2155 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); | |
2156 | } | |
2157 | } | |
2158 | ||
a0d0e21e LW |
2159 | PP(pp_aelem) |
2160 | { | |
2161 | dSP; | |
2162 | SV** svp; | |
748a9306 | 2163 | I32 elem = POPi; |
68dc0745 | 2164 | AV* av = (AV*)POPs; |
2165 | U32 lval = op->op_flags & OPf_MOD; | |
2166 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
a0d0e21e | 2167 | |
748a9306 LW |
2168 | if (elem > 0) |
2169 | elem -= curcop->cop_arybase; | |
a0d0e21e LW |
2170 | if (SvTYPE(av) != SVt_PVAV) |
2171 | RETPUSHUNDEF; | |
68dc0745 | 2172 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2173 | if (lval) { |
68dc0745 | 2174 | if (!svp || *svp == &sv_undef) { |
2175 | SV* lv; | |
2176 | if (!defer) | |
2177 | DIE(no_aelem, elem); | |
2178 | lv = sv_newmortal(); | |
2179 | sv_upgrade(lv, SVt_PVLV); | |
2180 | LvTYPE(lv) = 'y'; | |
2181 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2182 | LvTARG(lv) = SvREFCNT_inc(av); | |
2183 | LvTARGOFF(lv) = elem; | |
2184 | LvTARGLEN(lv) = 1; | |
2185 | PUSHs(lv); | |
2186 | RETURN; | |
2187 | } | |
a0d0e21e LW |
2188 | if (op->op_private & OPpLVAL_INTRO) |
2189 | save_svref(svp); | |
5f05dabc | 2190 | else if (op->op_private & OPpDEREF) |
68dc0745 | 2191 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e LW |
2192 | } |
2193 | PUSHs(svp ? *svp : &sv_undef); | |
2194 | RETURN; | |
2195 | } | |
2196 | ||
02a9e968 | 2197 | void |
8ac85365 | 2198 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2199 | { |
2200 | if (SvGMAGICAL(sv)) | |
2201 | mg_get(sv); | |
2202 | if (!SvOK(sv)) { | |
2203 | if (SvREADONLY(sv)) | |
2204 | croak(no_modify); | |
5f05dabc | 2205 | if (SvTYPE(sv) < SVt_RV) |
2206 | sv_upgrade(sv, SVt_RV); | |
2207 | else if (SvTYPE(sv) >= SVt_PV) { | |
2208 | (void)SvOOK_off(sv); | |
2209 | Safefree(SvPVX(sv)); | |
2210 | SvLEN(sv) = SvCUR(sv) = 0; | |
2211 | } | |
68dc0745 | 2212 | switch (to_what) { |
5f05dabc | 2213 | case OPpDEREF_SV: |
2214 | SvRV(sv) = newSV(0); | |
2215 | break; | |
2216 | case OPpDEREF_AV: | |
2217 | SvRV(sv) = (SV*)newAV(); | |
2218 | break; | |
2219 | case OPpDEREF_HV: | |
2220 | SvRV(sv) = (SV*)newHV(); | |
2221 | break; | |
2222 | } | |
02a9e968 CS |
2223 | SvROK_on(sv); |
2224 | SvSETMAGIC(sv); | |
2225 | } | |
2226 | } | |
2227 | ||
a0d0e21e LW |
2228 | PP(pp_method) |
2229 | { | |
2230 | dSP; | |
2231 | SV* sv; | |
2232 | SV* ob; | |
2233 | GV* gv; | |
56304f61 CS |
2234 | HV* stash; |
2235 | char* name; | |
ac91690f CS |
2236 | char* packname; |
2237 | STRLEN packlen; | |
a0d0e21e | 2238 | |
fb73857a | 2239 | if (SvROK(TOPs)) { |
2240 | sv = SvRV(TOPs); | |
2241 | if (SvTYPE(sv) == SVt_PVCV) { | |
2242 | SETs(sv); | |
2243 | RETURN; | |
2244 | } | |
2245 | } | |
2246 | ||
56304f61 | 2247 | name = SvPV(TOPs, na); |
a0d0e21e LW |
2248 | sv = *(stack_base + TOPMARK + 1); |
2249 | ||
16d20bd9 AD |
2250 | if (SvGMAGICAL(sv)) |
2251 | mg_get(sv); | |
a0d0e21e | 2252 | if (SvROK(sv)) |
16d20bd9 | 2253 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2254 | else { |
2255 | GV* iogv; | |
a0d0e21e | 2256 | |
56304f61 | 2257 | packname = Nullch; |
a0d0e21e | 2258 | if (!SvOK(sv) || |
56304f61 | 2259 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2260 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2261 | !(ob=(SV*)GvIO(iogv))) | |
2262 | { | |
56304f61 | 2263 | if (!packname || !isIDFIRST(*packname)) |
ac91690f | 2264 | DIE("Can't call method \"%s\" without a package or object reference", name); |
56304f61 | 2265 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2266 | goto fetch; |
a0d0e21e | 2267 | } |
ac91690f | 2268 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2269 | } |
2270 | ||
ac91690f | 2271 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2272 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2273 | |
56304f61 | 2274 | stash = SvSTASH(ob); |
a0d0e21e | 2275 | |
ac91690f | 2276 | fetch: |
ac91690f | 2277 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2278 | if (!gv) { |
2279 | char* leaf = name; | |
2280 | char* sep = Nullch; | |
2281 | char* p; | |
2282 | ||
2283 | for (p = name; *p; p++) { | |
2284 | if (*p == '\'') | |
2285 | sep = p, leaf = p + 1; | |
2286 | else if (*p == ':' && *(p + 1) == ':') | |
2287 | sep = p, leaf = p + 2; | |
2288 | } | |
2289 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
2290 | packname = HvNAME(sep ? curcop->cop_stash : stash); | |
2291 | packlen = strlen(packname); | |
2292 | } | |
2293 | else { | |
2294 | packname = name; | |
2295 | packlen = sep - name; | |
2296 | } | |
2297 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2298 | leaf, (int)packlen, packname); | |
2299 | } | |
8ebc5c01 | 2300 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2301 | RETURN; |
2302 | } |