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 | { | |
4e35701f | 51 | djSP; |
a0d0e21e LW |
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; |
924508f0 | 68 | EXTEND(SP,1); |
a0d0e21e LW |
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 LW |
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 LW |
101 | XPUSHs((SV*)cGVOP->op_gv); |
102 | RETURN; | |
103 | } | |
104 | ||
105 | PP(pp_and) | |
106 | { | |
4e35701f | 107 | djSP; |
a0d0e21e LW |
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 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 | { | |
4e35701f | 134 | djSP; |
a0d0e21e LW |
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 | { | |
4e35701f | 154 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
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 | { | |
4e35701f | 181 | djSP; dTARGET; |
a0d0e21e | 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]); | |
8ec5e241 NIS |
186 | else if (op->op_private & OPpDEREF) { |
187 | PUTBACK; | |
54310121 | 188 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
8ec5e241 NIS |
189 | SPAGAIN; |
190 | } | |
4633a7c4 | 191 | } |
a0d0e21e LW |
192 | RETURN; |
193 | } | |
194 | ||
195 | PP(pp_readline) | |
196 | { | |
197 | last_in_gv = (GV*)(*stack_sp--); | |
198 | return do_readline(); | |
199 | } | |
200 | ||
201 | PP(pp_eq) | |
202 | { | |
4e35701f | 203 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
204 | { |
205 | dPOPnv; | |
54310121 | 206 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
207 | RETURN; |
208 | } | |
209 | } | |
210 | ||
211 | PP(pp_preinc) | |
212 | { | |
4e35701f | 213 | djSP; |
68dc0745 | 214 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a | 215 | croak(no_modify); |
55497cff | 216 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
217 | SvIVX(TOPs) != IV_MAX) | |
218 | { | |
748a9306 | 219 | ++SvIVX(TOPs); |
55497cff | 220 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
221 | } |
222 | else | |
223 | sv_inc(TOPs); | |
a0d0e21e LW |
224 | SvSETMAGIC(TOPs); |
225 | return NORMAL; | |
226 | } | |
227 | ||
228 | PP(pp_or) | |
229 | { | |
4e35701f | 230 | djSP; |
a0d0e21e LW |
231 | if (SvTRUE(TOPs)) |
232 | RETURN; | |
233 | else { | |
234 | --SP; | |
235 | RETURNOP(cLOGOP->op_other); | |
236 | } | |
237 | } | |
238 | ||
239 | PP(pp_add) | |
240 | { | |
4e35701f | 241 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 242 | { |
7a4c00b4 | 243 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
244 | SETn( left + right ); |
245 | RETURN; | |
246 | } | |
247 | } | |
248 | ||
249 | PP(pp_aelemfast) | |
250 | { | |
4e35701f | 251 | djSP; |
a0d0e21e LW |
252 | AV *av = GvAV((GV*)cSVOP->op_sv); |
253 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); | |
254 | PUSHs(svp ? *svp : &sv_undef); | |
255 | RETURN; | |
256 | } | |
257 | ||
258 | PP(pp_join) | |
259 | { | |
4e35701f | 260 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
261 | MARK++; |
262 | do_join(TARG, *MARK, MARK, SP); | |
263 | SP = MARK; | |
264 | SETs(TARG); | |
265 | RETURN; | |
266 | } | |
267 | ||
268 | PP(pp_pushre) | |
269 | { | |
4e35701f | 270 | djSP; |
44a8e56a | 271 | #ifdef DEBUGGING |
272 | /* | |
273 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
274 | * will be enough to hold an OP*. | |
275 | */ | |
276 | SV* sv = sv_newmortal(); | |
277 | sv_upgrade(sv, SVt_PVLV); | |
278 | LvTYPE(sv) = '/'; | |
279 | Copy(&op, &LvTARGOFF(sv), 1, OP*); | |
280 | XPUSHs(sv); | |
281 | #else | |
a0d0e21e | 282 | XPUSHs((SV*)op); |
44a8e56a | 283 | #endif |
a0d0e21e LW |
284 | RETURN; |
285 | } | |
286 | ||
287 | /* Oversized hot code. */ | |
288 | ||
289 | PP(pp_print) | |
290 | { | |
4e35701f | 291 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
292 | GV *gv; |
293 | IO *io; | |
760ac839 | 294 | register PerlIO *fp; |
236988e4 | 295 | MAGIC *mg; |
a0d0e21e LW |
296 | |
297 | if (op->op_flags & OPf_STACKED) | |
298 | gv = (GV*)*++MARK; | |
299 | else | |
300 | gv = defoutgv; | |
3049007d | 301 | if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 | 302 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
303 | /* If using default handle then we need to make space to |
304 | * pass object as 1st arg, so move other args up ... | |
305 | */ | |
4352c267 | 306 | MEXTEND(SP, 1); |
68dc0745 | 307 | ++MARK; |
308 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
309 | ++SP; | |
310 | } | |
311 | PUSHMARK(MARK - 1); | |
236988e4 | 312 | *MARK = mg->mg_obj; |
68dc0745 | 313 | PUTBACK; |
236988e4 | 314 | ENTER; |
315 | perl_call_method("PRINT", G_SCALAR); | |
316 | LEAVE; | |
317 | SPAGAIN; | |
68dc0745 | 318 | MARK = ORIGMARK + 1; |
319 | *MARK = *SP; | |
320 | SP = MARK; | |
236988e4 | 321 | RETURN; |
322 | } | |
a0d0e21e | 323 | if (!(io = GvIO(gv))) { |
748a9306 LW |
324 | if (dowarn) { |
325 | SV* sv = sv_newmortal(); | |
4f732624 | 326 | gv_fullname3(sv, gv, Nullch); |
748a9306 LW |
327 | warn("Filehandle %s never opened", SvPV(sv,na)); |
328 | } | |
329 | ||
330 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
331 | goto just_say_no; |
332 | } | |
333 | else if (!(fp = IoOFP(io))) { | |
334 | if (dowarn) { | |
748a9306 | 335 | SV* sv = sv_newmortal(); |
4f732624 | 336 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 337 | if (IoIFP(io)) |
748a9306 | 338 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e | 339 | else |
748a9306 | 340 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e | 341 | } |
748a9306 | 342 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
343 | goto just_say_no; |
344 | } | |
345 | else { | |
346 | MARK++; | |
347 | if (ofslen) { | |
348 | while (MARK <= SP) { | |
349 | if (!do_print(*MARK, fp)) | |
350 | break; | |
351 | MARK++; | |
352 | if (MARK <= SP) { | |
760ac839 | 353 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
354 | MARK--; |
355 | break; | |
356 | } | |
357 | } | |
358 | } | |
359 | } | |
360 | else { | |
361 | while (MARK <= SP) { | |
362 | if (!do_print(*MARK, fp)) | |
363 | break; | |
364 | MARK++; | |
365 | } | |
366 | } | |
367 | if (MARK <= SP) | |
368 | goto just_say_no; | |
369 | else { | |
370 | if (orslen) | |
760ac839 | 371 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e LW |
372 | goto just_say_no; |
373 | ||
374 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 375 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
376 | goto just_say_no; |
377 | } | |
378 | } | |
379 | SP = ORIGMARK; | |
380 | PUSHs(&sv_yes); | |
381 | RETURN; | |
382 | ||
383 | just_say_no: | |
384 | SP = ORIGMARK; | |
385 | PUSHs(&sv_undef); | |
386 | RETURN; | |
387 | } | |
388 | ||
389 | PP(pp_rv2av) | |
390 | { | |
4e35701f | 391 | djSP; dPOPss; |
a0d0e21e LW |
392 | AV *av; |
393 | ||
394 | if (SvROK(sv)) { | |
395 | wasref: | |
396 | av = (AV*)SvRV(sv); | |
397 | if (SvTYPE(av) != SVt_PVAV) | |
398 | DIE("Not an ARRAY reference"); | |
a0d0e21e LW |
399 | if (op->op_flags & OPf_REF) { |
400 | PUSHs((SV*)av); | |
401 | RETURN; | |
402 | } | |
403 | } | |
404 | else { | |
405 | if (SvTYPE(sv) == SVt_PVAV) { | |
406 | av = (AV*)sv; | |
407 | if (op->op_flags & OPf_REF) { | |
408 | PUSHs((SV*)av); | |
409 | RETURN; | |
410 | } | |
411 | } | |
412 | else { | |
67955e0c | 413 | GV *gv; |
414 | ||
a0d0e21e | 415 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
416 | char *sym; |
417 | ||
a0d0e21e LW |
418 | if (SvGMAGICAL(sv)) { |
419 | mg_get(sv); | |
420 | if (SvROK(sv)) | |
421 | goto wasref; | |
422 | } | |
423 | if (!SvOK(sv)) { | |
424 | if (op->op_flags & OPf_REF || | |
425 | op->op_private & HINT_STRICT_REFS) | |
426 | DIE(no_usym, "an ARRAY"); | |
d83e6520 CS |
427 | if (dowarn) |
428 | warn(warn_uninit); | |
4633a7c4 LW |
429 | if (GIMME == G_ARRAY) |
430 | RETURN; | |
a0d0e21e LW |
431 | RETPUSHUNDEF; |
432 | } | |
748a9306 | 433 | sym = SvPV(sv,na); |
a0d0e21e | 434 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 435 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c | 436 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
437 | } else { | |
438 | gv = (GV*)sv; | |
a0d0e21e | 439 | } |
67955e0c | 440 | av = GvAVn(gv); |
a0d0e21e | 441 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 442 | av = save_ary(gv); |
a0d0e21e LW |
443 | if (op->op_flags & OPf_REF) { |
444 | PUSHs((SV*)av); | |
445 | RETURN; | |
446 | } | |
447 | } | |
448 | } | |
449 | ||
450 | if (GIMME == G_ARRAY) { | |
451 | I32 maxarg = AvFILL(av) + 1; | |
93965878 NIS |
452 | EXTEND(SP, maxarg); |
453 | if (SvRMAGICAL(av)) { | |
454 | U32 i; | |
455 | for (i=0; i < maxarg; i++) { | |
456 | SV **svp = av_fetch(av, i, FALSE); | |
457 | SP[i+1] = (svp) ? *svp : &sv_undef; | |
458 | } | |
459 | } | |
460 | else { | |
461 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
462 | } | |
a0d0e21e LW |
463 | SP += maxarg; |
464 | } | |
465 | else { | |
466 | dTARGET; | |
467 | I32 maxarg = AvFILL(av) + 1; | |
468 | PUSHi(maxarg); | |
469 | } | |
470 | RETURN; | |
471 | } | |
472 | ||
473 | PP(pp_rv2hv) | |
474 | { | |
4e35701f | 475 | djSP; dTOPss; |
a0d0e21e LW |
476 | HV *hv; |
477 | ||
478 | if (SvROK(sv)) { | |
479 | wasref: | |
480 | hv = (HV*)SvRV(sv); | |
c750a3ec | 481 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e | 482 | DIE("Not a HASH reference"); |
a0d0e21e LW |
483 | if (op->op_flags & OPf_REF) { |
484 | SETs((SV*)hv); | |
485 | RETURN; | |
486 | } | |
487 | } | |
488 | else { | |
c750a3ec | 489 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e LW |
490 | hv = (HV*)sv; |
491 | if (op->op_flags & OPf_REF) { | |
492 | SETs((SV*)hv); | |
493 | RETURN; | |
494 | } | |
495 | } | |
496 | else { | |
67955e0c | 497 | GV *gv; |
498 | ||
a0d0e21e | 499 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
500 | char *sym; |
501 | ||
a0d0e21e LW |
502 | if (SvGMAGICAL(sv)) { |
503 | mg_get(sv); | |
504 | if (SvROK(sv)) | |
505 | goto wasref; | |
506 | } | |
507 | if (!SvOK(sv)) { | |
508 | if (op->op_flags & OPf_REF || | |
509 | op->op_private & HINT_STRICT_REFS) | |
510 | DIE(no_usym, "a HASH"); | |
d83e6520 CS |
511 | if (dowarn) |
512 | warn(warn_uninit); | |
4633a7c4 LW |
513 | if (GIMME == G_ARRAY) { |
514 | SP--; | |
515 | RETURN; | |
516 | } | |
a0d0e21e LW |
517 | RETSETUNDEF; |
518 | } | |
748a9306 | 519 | sym = SvPV(sv,na); |
a0d0e21e | 520 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 521 | DIE(no_symref, sym, "a HASH"); |
67955e0c | 522 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
523 | } else { | |
524 | gv = (GV*)sv; | |
a0d0e21e | 525 | } |
67955e0c | 526 | hv = GvHVn(gv); |
a0d0e21e | 527 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 528 | hv = save_hash(gv); |
a0d0e21e LW |
529 | if (op->op_flags & OPf_REF) { |
530 | SETs((SV*)hv); | |
531 | RETURN; | |
532 | } | |
533 | } | |
534 | } | |
535 | ||
536 | if (GIMME == G_ARRAY) { /* array wanted */ | |
537 | *stack_sp = (SV*)hv; | |
538 | return do_kv(ARGS); | |
539 | } | |
540 | else { | |
541 | dTARGET; | |
c750a3ec | 542 | /* This bit is OK even when hv is really an AV */ |
46fc3d4c | 543 | if (HvFILL(hv)) |
544 | sv_setpvf(TARG, "%ld/%ld", | |
545 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
546 | else |
547 | sv_setiv(TARG, 0); | |
c750a3ec | 548 | |
a0d0e21e LW |
549 | SETTARG; |
550 | RETURN; | |
551 | } | |
552 | } | |
553 | ||
554 | PP(pp_aassign) | |
555 | { | |
4e35701f | 556 | djSP; |
a0d0e21e LW |
557 | SV **lastlelem = stack_sp; |
558 | SV **lastrelem = stack_base + POPMARK; | |
559 | SV **firstrelem = stack_base + POPMARK + 1; | |
560 | SV **firstlelem = lastrelem + 1; | |
561 | ||
562 | register SV **relem; | |
563 | register SV **lelem; | |
564 | ||
565 | register SV *sv; | |
566 | register AV *ary; | |
567 | ||
54310121 | 568 | I32 gimme; |
a0d0e21e LW |
569 | HV *hash; |
570 | I32 i; | |
571 | int magic; | |
572 | ||
573 | delaymagic = DM_DELAY; /* catch simultaneous items */ | |
574 | ||
575 | /* If there's a common identifier on both sides we have to take | |
576 | * special care that assigning the identifier on the left doesn't | |
577 | * clobber a value on the right that's used later in the list. | |
578 | */ | |
579 | if (op->op_private & OPpASSIGN_COMMON) { | |
580 | for (relem = firstrelem; relem <= lastrelem; relem++) { | |
581 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
582 | if (sv = *relem) { |
583 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 584 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 585 | } |
a0d0e21e LW |
586 | } |
587 | } | |
588 | ||
589 | relem = firstrelem; | |
590 | lelem = firstlelem; | |
591 | ary = Null(AV*); | |
592 | hash = Null(HV*); | |
593 | while (lelem <= lastlelem) { | |
bbce6d69 | 594 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
595 | sv = *lelem++; |
596 | switch (SvTYPE(sv)) { | |
597 | case SVt_PVAV: | |
598 | ary = (AV*)sv; | |
748a9306 | 599 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
600 | |
601 | av_clear(ary); | |
7e42bd57 | 602 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
603 | i = 0; |
604 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 605 | SV **didstore; |
a0d0e21e LW |
606 | sv = NEWSV(28,0); |
607 | assert(*relem); | |
608 | sv_setsv(sv,*relem); | |
609 | *(relem++) = sv; | |
5117ca91 GS |
610 | didstore = av_store(ary,i++,sv); |
611 | if (magic) { | |
fb73857a | 612 | if (SvSMAGICAL(sv)) |
613 | mg_set(sv); | |
5117ca91 GS |
614 | if (!didstore) |
615 | SvREFCNT_dec(sv); | |
616 | } | |
bbce6d69 | 617 | TAINT_NOT; |
a0d0e21e LW |
618 | } |
619 | break; | |
620 | case SVt_PVHV: { | |
a0d0e21e LW |
621 | SV *tmpstr; |
622 | ||
623 | hash = (HV*)sv; | |
748a9306 | 624 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
625 | hv_clear(hash); |
626 | ||
627 | while (relem < lastrelem) { /* gobble up all the rest */ | |
628 | STRLEN len; | |
5117ca91 | 629 | HE *didstore; |
4633a7c4 | 630 | if (*relem) |
a0d0e21e | 631 | sv = *(relem++); |
4633a7c4 | 632 | else |
a0d0e21e | 633 | sv = &sv_no, relem++; |
a0d0e21e LW |
634 | tmpstr = NEWSV(29,0); |
635 | if (*relem) | |
636 | sv_setsv(tmpstr,*relem); /* value */ | |
637 | *(relem++) = tmpstr; | |
5117ca91 GS |
638 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
639 | if (magic) { | |
fb73857a | 640 | if (SvSMAGICAL(tmpstr)) |
641 | mg_set(tmpstr); | |
5117ca91 GS |
642 | if (!didstore) |
643 | SvREFCNT_dec(tmpstr); | |
644 | } | |
bbce6d69 | 645 | TAINT_NOT; |
8e07c86e | 646 | } |
1930e939 TP |
647 | if (relem == lastrelem && dowarn) { |
648 | if (relem == firstrelem && | |
649 | SvROK(*relem) && | |
650 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
651 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
652 | warn("Reference found where even-sized list expected"); | |
653 | else | |
654 | warn("Odd number of elements in hash assignment"); | |
655 | } | |
a0d0e21e LW |
656 | } |
657 | break; | |
658 | default: | |
659 | if (SvTHINKFIRST(sv)) { | |
660 | if (SvREADONLY(sv) && curcop != &compiling) { | |
661 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) | |
662 | DIE(no_modify); | |
663 | if (relem <= lastrelem) | |
664 | relem++; | |
665 | break; | |
666 | } | |
667 | if (SvROK(sv)) | |
668 | sv_unref(sv); | |
669 | } | |
670 | if (relem <= lastrelem) { | |
671 | sv_setsv(sv, *relem); | |
672 | *(relem++) = sv; | |
673 | } | |
674 | else | |
675 | sv_setsv(sv, &sv_undef); | |
676 | SvSETMAGIC(sv); | |
677 | break; | |
678 | } | |
679 | } | |
680 | if (delaymagic & ~DM_DELAY) { | |
681 | if (delaymagic & DM_UID) { | |
682 | #ifdef HAS_SETRESUID | |
683 | (void)setresuid(uid,euid,(Uid_t)-1); | |
56febc5e AD |
684 | #else |
685 | # ifdef HAS_SETREUID | |
a0d0e21e | 686 | (void)setreuid(uid,euid); |
56febc5e AD |
687 | # else |
688 | # ifdef HAS_SETRUID | |
a0d0e21e LW |
689 | if ((delaymagic & DM_UID) == DM_RUID) { |
690 | (void)setruid(uid); | |
748a9306 | 691 | delaymagic &= ~DM_RUID; |
a0d0e21e | 692 | } |
56febc5e AD |
693 | # endif /* HAS_SETRUID */ |
694 | # ifdef HAS_SETEUID | |
a0d0e21e LW |
695 | if ((delaymagic & DM_UID) == DM_EUID) { |
696 | (void)seteuid(uid); | |
748a9306 | 697 | delaymagic &= ~DM_EUID; |
a0d0e21e | 698 | } |
56febc5e | 699 | # endif /* HAS_SETEUID */ |
a0d0e21e LW |
700 | if (delaymagic & DM_UID) { |
701 | if (uid != euid) | |
702 | DIE("No setreuid available"); | |
703 | (void)setuid(uid); | |
704 | } | |
56febc5e AD |
705 | # endif /* HAS_SETREUID */ |
706 | #endif /* HAS_SETRESUID */ | |
a0d0e21e LW |
707 | uid = (int)getuid(); |
708 | euid = (int)geteuid(); | |
709 | } | |
710 | if (delaymagic & DM_GID) { | |
711 | #ifdef HAS_SETRESGID | |
712 | (void)setresgid(gid,egid,(Gid_t)-1); | |
56febc5e AD |
713 | #else |
714 | # ifdef HAS_SETREGID | |
a0d0e21e | 715 | (void)setregid(gid,egid); |
56febc5e AD |
716 | # else |
717 | # ifdef HAS_SETRGID | |
a0d0e21e LW |
718 | if ((delaymagic & DM_GID) == DM_RGID) { |
719 | (void)setrgid(gid); | |
748a9306 | 720 | delaymagic &= ~DM_RGID; |
a0d0e21e | 721 | } |
56febc5e AD |
722 | # endif /* HAS_SETRGID */ |
723 | # ifdef HAS_SETEGID | |
a0d0e21e LW |
724 | if ((delaymagic & DM_GID) == DM_EGID) { |
725 | (void)setegid(gid); | |
748a9306 | 726 | delaymagic &= ~DM_EGID; |
a0d0e21e | 727 | } |
56febc5e | 728 | # endif /* HAS_SETEGID */ |
a0d0e21e LW |
729 | if (delaymagic & DM_GID) { |
730 | if (gid != egid) | |
731 | DIE("No setregid available"); | |
732 | (void)setgid(gid); | |
733 | } | |
56febc5e AD |
734 | # endif /* HAS_SETREGID */ |
735 | #endif /* HAS_SETRESGID */ | |
a0d0e21e LW |
736 | gid = (int)getgid(); |
737 | egid = (int)getegid(); | |
738 | } | |
4633a7c4 | 739 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e LW |
740 | } |
741 | delaymagic = 0; | |
54310121 | 742 | |
743 | gimme = GIMME_V; | |
744 | if (gimme == G_VOID) | |
745 | SP = firstrelem - 1; | |
746 | else if (gimme == G_SCALAR) { | |
747 | dTARGET; | |
748 | SP = firstrelem; | |
749 | SETi(lastrelem - firstrelem + 1); | |
750 | } | |
751 | else { | |
a0d0e21e LW |
752 | if (ary || hash) |
753 | SP = lastrelem; | |
754 | else | |
755 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 756 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 757 | while (relem <= SP) |
0c8c7a05 | 758 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e | 759 | } |
54310121 | 760 | RETURN; |
a0d0e21e LW |
761 | } |
762 | ||
763 | PP(pp_match) | |
764 | { | |
4e35701f | 765 | djSP; dTARG; |
a0d0e21e LW |
766 | register PMOP *pm = cPMOP; |
767 | register char *t; | |
768 | register char *s; | |
769 | char *strend; | |
770 | I32 global; | |
771 | I32 safebase; | |
772 | char *truebase; | |
773 | register REGEXP *rx = pm->op_pmregexp; | |
774 | I32 gimme = GIMME; | |
775 | STRLEN len; | |
748a9306 | 776 | I32 minmatch = 0; |
4633a7c4 | 777 | I32 oldsave = savestack_ix; |
f86702cc | 778 | I32 update_minmatch = 1; |
c277df42 | 779 | SV *screamer; |
a0d0e21e LW |
780 | |
781 | if (op->op_flags & OPf_STACKED) | |
782 | TARG = POPs; | |
783 | else { | |
54b9620d | 784 | TARG = DEFSV; |
a0d0e21e LW |
785 | EXTEND(SP,1); |
786 | } | |
c277df42 | 787 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
788 | s = SvPV(TARG, len); |
789 | strend = s + len; | |
790 | if (!s) | |
791 | DIE("panic: do_match"); | |
9212bbba | 792 | TAINT_NOT; |
a0d0e21e LW |
793 | |
794 | if (pm->op_pmflags & PMf_USED) { | |
c277df42 | 795 | failure: |
a0d0e21e LW |
796 | if (gimme == G_ARRAY) |
797 | RETURN; | |
798 | RETPUSHNO; | |
799 | } | |
800 | ||
801 | if (!rx->prelen && curpm) { | |
802 | pm = curpm; | |
803 | rx = pm->op_pmregexp; | |
804 | } | |
c277df42 IZ |
805 | if (rx->minlen > len) goto failure; |
806 | ||
807 | screamer = ( (SvSCREAM(TARG) && rx->check_substr | |
808 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
809 | && SvVALID(rx->check_substr)) | |
810 | ? TARG : Nullsv); | |
a0d0e21e LW |
811 | truebase = t = s; |
812 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
813 | rx->startp[0] = 0; | |
814 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { | |
815 | MAGIC* mg = mg_find(TARG, 'g'); | |
748a9306 | 816 | if (mg && mg->mg_len >= 0) { |
a0d0e21e | 817 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 | 818 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 819 | update_minmatch = 0; |
748a9306 | 820 | } |
a0d0e21e LW |
821 | } |
822 | } | |
748a9306 LW |
823 | if (!rx->nparens && !global) |
824 | gimme = G_SCALAR; /* accidental array context? */ | |
137443ea | 825 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
826 | && !sawampersand); | |
c277df42 | 827 | safebase = safebase ? 0 : REXEC_COPY_STR ; |
a0d0e21e LW |
828 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
829 | SAVEINT(multiline); | |
830 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
831 | } | |
832 | ||
833 | play_it_again: | |
834 | if (global && rx->startp[0]) { | |
835 | t = s = rx->endp[0]; | |
51aa1f50 | 836 | if ((s + rx->minlen) > strend) |
a0d0e21e | 837 | goto nope; |
f86702cc | 838 | if (update_minmatch++) |
839 | minmatch = (s == rx->startp[0]); | |
a0d0e21e | 840 | } |
c277df42 IZ |
841 | if (rx->check_substr) { |
842 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
843 | if ( screamer ) { | |
844 | I32 p = -1; | |
845 | ||
846 | if (screamfirst[BmRARE(rx->check_substr)] < 0) | |
a0d0e21e | 847 | goto nope; |
c277df42 IZ |
848 | else if (!(s = screaminstr(TARG, rx->check_substr, |
849 | rx->check_offset_min, 0, &p, 0))) | |
a0d0e21e | 850 | goto nope; |
c277df42 IZ |
851 | else if ((rx->reganch & ROPT_CHECK_ALL) |
852 | && !sawampersand && !SvTAIL(rx->check_substr)) | |
a0d0e21e LW |
853 | goto yup; |
854 | } | |
c277df42 IZ |
855 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
856 | (unsigned char*)strend, | |
857 | rx->check_substr))) | |
a0d0e21e | 858 | goto nope; |
c277df42 | 859 | else if ((rx->reganch & ROPT_CHECK_ALL) && !sawampersand) |
a0d0e21e | 860 | goto yup; |
c277df42 IZ |
861 | if (s && rx->check_offset_max < t - s) { |
862 | ++BmUSEFUL(rx->check_substr); | |
863 | s -= rx->check_offset_max; | |
a0d0e21e LW |
864 | } |
865 | else | |
866 | s = t; | |
867 | } | |
c277df42 IZ |
868 | /* Now checkstring is fixed, i.e. at fixed offset from the |
869 | beginning of match, and the match is anchored at s. */ | |
870 | else if (!multiline) { /* Anchored near beginning of string. */ | |
871 | I32 slen; | |
872 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] | |
873 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
874 | && memNE(SvPVX(rx->check_substr), | |
875 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 876 | goto nope; |
a0d0e21e | 877 | } |
c277df42 IZ |
878 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
879 | && rx->check_substr == rx->float_substr) { | |
880 | SvREFCNT_dec(rx->check_substr); | |
881 | rx->check_substr = Nullsv; /* opt is being useless */ | |
882 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
883 | } |
884 | } | |
c277df42 IZ |
885 | if (regexec_flags(rx, s, strend, truebase, minmatch, |
886 | screamer, NULL, safebase)) | |
bbce6d69 | 887 | { |
a0d0e21e LW |
888 | curpm = pm; |
889 | if (pm->op_pmflags & PMf_ONCE) | |
890 | pm->op_pmflags |= PMf_USED; | |
891 | goto gotcha; | |
892 | } | |
893 | else | |
894 | goto ret_no; | |
895 | /*NOTREACHED*/ | |
896 | ||
897 | gotcha: | |
c277df42 | 898 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e LW |
899 | if (gimme == G_ARRAY) { |
900 | I32 iters, i, len; | |
901 | ||
902 | iters = rx->nparens; | |
903 | if (global && !iters) | |
904 | i = 1; | |
905 | else | |
906 | i = 0; | |
c277df42 | 907 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 908 | EXTEND(SP, iters + i); |
bbce6d69 | 909 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
910 | for (i = !i; i <= iters; i++) { |
911 | PUSHs(sv_newmortal()); | |
912 | /*SUPPRESS 560*/ | |
913 | if ((s = rx->startp[i]) && rx->endp[i] ) { | |
914 | len = rx->endp[i] - s; | |
915 | sv_setpvn(*SP, s, len); | |
916 | } | |
917 | } | |
918 | if (global) { | |
919 | truebase = rx->subbeg; | |
5f05dabc | 920 | strend = rx->subend; |
a0d0e21e LW |
921 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
922 | ++rx->endp[0]; | |
c277df42 | 923 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e LW |
924 | goto play_it_again; |
925 | } | |
4633a7c4 | 926 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
927 | RETURN; |
928 | } | |
929 | else { | |
930 | if (global) { | |
931 | MAGIC* mg = 0; | |
932 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
933 | mg = mg_find(TARG, 'g'); | |
934 | if (!mg) { | |
935 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
936 | mg = mg_find(TARG, 'g'); | |
937 | } | |
748a9306 | 938 | if (rx->startp[0]) { |
5f05dabc | 939 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 LW |
940 | if (rx->startp[0] == rx->endp[0]) |
941 | mg->mg_flags |= MGf_MINMATCH; | |
942 | else | |
943 | mg->mg_flags &= ~MGf_MINMATCH; | |
944 | } | |
a0d0e21e | 945 | } |
4633a7c4 | 946 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
947 | RETPUSHYES; |
948 | } | |
949 | ||
c277df42 IZ |
950 | yup: /* Confirmed by check_substr */ |
951 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
952 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
953 | curpm = pm; |
954 | if (pm->op_pmflags & PMf_ONCE) | |
955 | pm->op_pmflags |= PMf_USED; | |
5f05dabc | 956 | Safefree(rx->subbase); |
957 | rx->subbase = Nullch; | |
a0d0e21e LW |
958 | if (global) { |
959 | rx->subbeg = truebase; | |
960 | rx->subend = strend; | |
961 | rx->startp[0] = s; | |
c277df42 | 962 | rx->endp[0] = s + SvCUR(rx->check_substr); |
a0d0e21e LW |
963 | goto gotcha; |
964 | } | |
965 | if (sawampersand) { | |
966 | char *tmps; | |
967 | ||
a0d0e21e LW |
968 | tmps = rx->subbase = savepvn(t, strend-t); |
969 | rx->subbeg = tmps; | |
970 | rx->subend = tmps + (strend-t); | |
971 | tmps = rx->startp[0] = tmps + (s - t); | |
c277df42 | 972 | rx->endp[0] = tmps + SvCUR(rx->check_substr); |
a0d0e21e | 973 | } |
4633a7c4 | 974 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
975 | RETPUSHYES; |
976 | ||
977 | nope: | |
c277df42 IZ |
978 | if (rx->check_substr) |
979 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
980 | |
981 | ret_no: | |
c90c0ff4 | 982 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
983 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
984 | MAGIC* mg = mg_find(TARG, 'g'); | |
985 | if (mg) | |
986 | mg->mg_len = -1; | |
987 | } | |
988 | } | |
4633a7c4 | 989 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
990 | if (gimme == G_ARRAY) |
991 | RETURN; | |
992 | RETPUSHNO; | |
993 | } | |
994 | ||
995 | OP * | |
8ac85365 | 996 | do_readline(void) |
a0d0e21e LW |
997 | { |
998 | dSP; dTARGETSTACKED; | |
999 | register SV *sv; | |
1000 | STRLEN tmplen = 0; | |
1001 | STRLEN offset; | |
760ac839 | 1002 | PerlIO *fp; |
a0d0e21e LW |
1003 | register IO *io = GvIO(last_in_gv); |
1004 | register I32 type = op->op_type; | |
54310121 | 1005 | I32 gimme = GIMME_V; |
e79b0511 | 1006 | MAGIC *mg; |
a0d0e21e | 1007 | |
3049007d | 1008 | if (SvRMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
e79b0511 | 1009 | PUSHMARK(SP); |
1010 | XPUSHs(mg->mg_obj); | |
1011 | PUTBACK; | |
1012 | ENTER; | |
54310121 | 1013 | perl_call_method("READLINE", gimme); |
e79b0511 | 1014 | LEAVE; |
1015 | SPAGAIN; | |
54310121 | 1016 | if (gimme == G_SCALAR) |
1017 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1018 | RETURN; |
1019 | } | |
a0d0e21e LW |
1020 | fp = Nullfp; |
1021 | if (io) { | |
1022 | fp = IoIFP(io); | |
1023 | if (!fp) { | |
1024 | if (IoFLAGS(io) & IOf_ARGV) { | |
1025 | if (IoFLAGS(io) & IOf_START) { | |
1026 | IoFLAGS(io) &= ~IOf_START; | |
1027 | IoLINES(io) = 0; | |
1028 | if (av_len(GvAVn(last_in_gv)) < 0) { | |
1029 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ | |
1030 | av_push(GvAVn(last_in_gv), tmpstr); | |
1031 | } | |
1032 | } | |
1033 | fp = nextargv(last_in_gv); | |
1034 | if (!fp) { /* Note: fp != IoIFP(io) */ | |
1035 | (void)do_close(last_in_gv, FALSE); /* now it does*/ | |
1036 | IoFLAGS(io) |= IOf_START; | |
1037 | } | |
1038 | } | |
1039 | else if (type == OP_GLOB) { | |
1040 | SV *tmpcmd = NEWSV(55, 0); | |
1041 | SV *tmpglob = POPs; | |
1042 | ENTER; | |
1043 | SAVEFREESV(tmpcmd); | |
1044 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1045 | /* since spawning off a process is a real performance hit */ | |
1046 | { | |
1047 | #include <descrip.h> | |
1048 | #include <lib$routines.h> | |
1049 | #include <nam.h> | |
1050 | #include <rmsdef.h> | |
1051 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1052 | char vmsspec[NAM$C_MAXRSS+1]; | |
1053 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1054 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1055 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1056 | PerlIO *tmpfp; |
a0d0e21e LW |
1057 | STRLEN i; |
1058 | struct dsc$descriptor_s wilddsc | |
1059 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1060 | struct dsc$descriptor_vs rsdsc | |
1061 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1062 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1063 | ||
1064 | /* We could find out if there's an explicit dev/dir or version | |
1065 | by peeking into lib$find_file's internal context at | |
1066 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1067 | but that's unsupported, so I don't want to do it now and | |
1068 | have it bite someone in the future. */ | |
3028581b | 1069 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1070 | cp = SvPV(tmpglob,i); |
1071 | for (; i; i--) { | |
1072 | if (cp[i] == ';') hasver = 1; | |
1073 | if (cp[i] == '.') { | |
1074 | if (sts) hasver = 1; | |
1075 | else sts = 1; | |
1076 | } | |
1077 | if (cp[i] == '/') { | |
1078 | hasdir = isunix = 1; | |
1079 | break; | |
748a9306 | 1080 | } |
a0d0e21e LW |
1081 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1082 | hasdir = 1; | |
1083 | break; | |
1084 | } | |
1085 | } | |
760ac839 | 1086 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1087 | Stat_t st; |
c6ed36e1 | 1088 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1089 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1090 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1091 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1092 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1093 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1094 | end = rstr + (unsigned long int) *rslt; | |
1095 | if (!hasver) while (*end != ';') end--; | |
1096 | *(end++) = '\n'; *end = '\0'; | |
1097 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1098 | if (hasdir) { | |
f86702cc | 1099 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1100 | begin = rstr; |
1101 | } | |
1102 | else { | |
1103 | begin = end; | |
1104 | while (*(--begin) != ']' && *begin != '>') ; | |
1105 | ++begin; | |
1106 | } | |
760ac839 | 1107 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1108 | } |
1109 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1110 | if (ok && sts != RMS$_NMF && |
1111 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1112 | if (!ok) { |
c07a80fd | 1113 | if (!(sts & 1)) { |
1114 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1115 | } | |
760ac839 | 1116 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1117 | fp = NULL; |
1118 | } | |
1119 | else { | |
760ac839 | 1120 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1121 | IoTYPE(io) = '<'; |
1122 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1123 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1124 | } |
1125 | } | |
1126 | } | |
1127 | #else /* !VMS */ | |
1128 | #ifdef DOSISH | |
67955e0c | 1129 | #ifdef OS2 |
1130 | sv_setpv(tmpcmd, "for a in "); | |
1131 | sv_catsv(tmpcmd, tmpglob); | |
1132 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1133 | #else | |
39e571d4 LM |
1134 | #ifdef DJGPP |
1135 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1136 | sv_catsv(tmpcmd, tmpglob); | |
1137 | #else | |
a0d0e21e LW |
1138 | sv_setpv(tmpcmd, "perlglob "); |
1139 | sv_catsv(tmpcmd, tmpglob); | |
1140 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1141 | #endif /* !DJGPP */ |
67955e0c | 1142 | #endif /* !OS2 */ |
1143 | #else /* !DOSISH */ | |
1144 | #if defined(CSH) | |
a0d0e21e LW |
1145 | sv_setpvn(tmpcmd, cshname, cshlen); |
1146 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
1147 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1148 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1149 | #else |
1150 | sv_setpv(tmpcmd, "echo "); | |
1151 | sv_catsv(tmpcmd, tmpglob); | |
1152 | #if 'z' - 'a' == 25 | |
1153 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1154 | #else | |
1155 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1156 | #endif | |
1157 | #endif /* !CSH */ | |
67955e0c | 1158 | #endif /* !DOSISH */ |
c07a80fd | 1159 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1160 | FALSE, 0, 0, Nullfp); | |
a0d0e21e LW |
1161 | fp = IoIFP(io); |
1162 | #endif /* !VMS */ | |
1163 | LEAVE; | |
1164 | } | |
1165 | } | |
1166 | else if (type == OP_GLOB) | |
1167 | SP--; | |
1168 | } | |
1169 | if (!fp) { | |
4633a7c4 | 1170 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e | 1171 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 | 1172 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1173 | (void)SvOK_off(TARG); |
1174 | PUSHTARG; | |
1175 | } | |
1176 | RETURN; | |
1177 | } | |
54310121 | 1178 | if (gimme == G_SCALAR) { |
a0d0e21e | 1179 | sv = TARG; |
9607fc9c | 1180 | if (SvROK(sv)) |
1181 | sv_unref(sv); | |
a0d0e21e LW |
1182 | (void)SvUPGRADE(sv, SVt_PV); |
1183 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1184 | if (!tmplen) | |
1185 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1186 | if (type == OP_RCATLINE) | |
1187 | offset = SvCUR(sv); | |
1188 | else | |
1189 | offset = 0; | |
1190 | } | |
54310121 | 1191 | else { |
1192 | sv = sv_2mortal(NEWSV(57, 80)); | |
1193 | offset = 0; | |
1194 | } | |
a0d0e21e LW |
1195 | for (;;) { |
1196 | if (!sv_gets(sv, fp, offset)) { | |
760ac839 | 1197 | PerlIO_clearerr(fp); |
a0d0e21e LW |
1198 | if (IoFLAGS(io) & IOf_ARGV) { |
1199 | fp = nextargv(last_in_gv); | |
1200 | if (fp) | |
1201 | continue; | |
1202 | (void)do_close(last_in_gv, FALSE); | |
1203 | IoFLAGS(io) |= IOf_START; | |
1204 | } | |
1205 | else if (type == OP_GLOB) { | |
5cd24f17 | 1206 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1207 | warn("internal error: glob failed"); | |
a0d0e21e | 1208 | } |
54310121 | 1209 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1210 | (void)SvOK_off(TARG); |
1211 | PUSHTARG; | |
1212 | } | |
1213 | RETURN; | |
1214 | } | |
bbce6d69 | 1215 | /* This should not be marked tainted if the fp is marked clean */ |
1216 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1217 | TAINT; | |
1218 | SvTAINTED_on(sv); | |
1219 | } | |
a0d0e21e | 1220 | IoLINES(io)++; |
71be2cbc | 1221 | SvSETMAGIC(sv); |
a0d0e21e | 1222 | XPUSHs(sv); |
a0d0e21e LW |
1223 | if (type == OP_GLOB) { |
1224 | char *tmps; | |
1225 | ||
c07a80fd | 1226 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1227 | tmps = SvEND(sv) - 1; | |
1228 | if (*tmps == *SvPVX(rs)) { | |
1229 | *tmps = '\0'; | |
1230 | SvCUR(sv)--; | |
1231 | } | |
1232 | } | |
a0d0e21e LW |
1233 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1234 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1235 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1236 | break; | |
c6ed36e1 | 1237 | if (*tmps && PerlLIO_stat(SvPVX(sv), &statbuf) < 0) { |
a0d0e21e LW |
1238 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1239 | continue; | |
1240 | } | |
1241 | } | |
54310121 | 1242 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1243 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1244 | SvLEN_set(sv, SvCUR(sv)+1); | |
1245 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1246 | } | |
1247 | sv = sv_2mortal(NEWSV(58, 80)); | |
1248 | continue; | |
1249 | } | |
54310121 | 1250 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1251 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1252 | if (SvCUR(sv) < 60) | |
1253 | SvLEN_set(sv, 80); | |
1254 | else | |
1255 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1256 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1257 | } | |
1258 | RETURN; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | PP(pp_enter) | |
1263 | { | |
4e35701f | 1264 | djSP; |
c09156bb | 1265 | register PERL_CONTEXT *cx; |
54310121 | 1266 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e | 1267 | |
54310121 | 1268 | if (gimme == -1) { |
1269 | if (cxstack_ix >= 0) | |
1270 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1271 | else | |
1272 | gimme = G_SCALAR; | |
1273 | } | |
a0d0e21e LW |
1274 | |
1275 | ENTER; | |
1276 | ||
1277 | SAVETMPS; | |
924508f0 | 1278 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1279 | |
1280 | RETURN; | |
1281 | } | |
1282 | ||
1283 | PP(pp_helem) | |
1284 | { | |
4e35701f | 1285 | djSP; |
760ac839 | 1286 | HE* he; |
ae77835f | 1287 | SV **svp; |
a0d0e21e | 1288 | SV *keysv = POPs; |
a0d0e21e | 1289 | HV *hv = (HV*)POPs; |
68dc0745 | 1290 | U32 lval = op->op_flags & OPf_MOD; |
1291 | U32 defer = op->op_private & OPpLVAL_DEFER; | |
a0d0e21e | 1292 | |
ae77835f MB |
1293 | if (SvTYPE(hv) == SVt_PVHV) { |
1294 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1295 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1296 | } |
1297 | else if (SvTYPE(hv) == SVt_PVAV) { | |
97fcbf96 | 1298 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1299 | } |
c750a3ec | 1300 | else { |
a0d0e21e | 1301 | RETPUSHUNDEF; |
c750a3ec | 1302 | } |
a0d0e21e | 1303 | if (lval) { |
97fcbf96 | 1304 | if (!svp || *svp == &sv_undef) { |
68dc0745 | 1305 | SV* lv; |
1306 | SV* key2; | |
1307 | if (!defer) | |
1308 | DIE(no_helem, SvPV(keysv, na)); | |
1309 | lv = sv_newmortal(); | |
1310 | sv_upgrade(lv, SVt_PVLV); | |
1311 | LvTYPE(lv) = 'y'; | |
1312 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1313 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1314 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1315 | LvTARGLEN(lv) = 1; | |
1316 | PUSHs(lv); | |
1317 | RETURN; | |
1318 | } | |
5f05dabc | 1319 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f MB |
1320 | if (HvNAME(hv) && isGV(*svp)) |
1321 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); | |
5f05dabc | 1322 | else |
161b7d16 | 1323 | save_helem(hv, keysv, svp); |
5f05dabc | 1324 | } |
1325 | else if (op->op_private & OPpDEREF) | |
ae77835f | 1326 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e LW |
1327 | } |
1328 | PUSHs(svp ? *svp : &sv_undef); | |
1329 | RETURN; | |
1330 | } | |
1331 | ||
1332 | PP(pp_leave) | |
1333 | { | |
4e35701f | 1334 | djSP; |
c09156bb | 1335 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1336 | register SV **mark; |
1337 | SV **newsp; | |
1338 | PMOP *newpm; | |
1339 | I32 gimme; | |
1340 | ||
1341 | if (op->op_flags & OPf_SPECIAL) { | |
1342 | cx = &cxstack[cxstack_ix]; | |
1343 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ | |
1344 | } | |
1345 | ||
1346 | POPBLOCK(cx,newpm); | |
1347 | ||
54310121 | 1348 | gimme = OP_GIMME(op, -1); |
1349 | if (gimme == -1) { | |
1350 | if (cxstack_ix >= 0) | |
1351 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1352 | else | |
1353 | gimme = G_SCALAR; | |
1354 | } | |
a0d0e21e | 1355 | |
a1f49e72 | 1356 | TAINT_NOT; |
54310121 | 1357 | if (gimme == G_VOID) |
1358 | SP = newsp; | |
1359 | else if (gimme == G_SCALAR) { | |
1360 | MARK = newsp + 1; | |
1361 | if (MARK <= SP) | |
1362 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1363 | *MARK = TOPs; | |
1364 | else | |
1365 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1366 | else { |
54310121 | 1367 | MEXTEND(mark,0); |
1368 | *MARK = &sv_undef; | |
a0d0e21e | 1369 | } |
54310121 | 1370 | SP = MARK; |
a0d0e21e | 1371 | } |
54310121 | 1372 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1373 | /* in case LEAVE wipes old return values */ |
1374 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1375 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1376 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1377 | TAINT_NOT; /* Each item is independent */ |
1378 | } | |
1379 | } | |
a0d0e21e LW |
1380 | } |
1381 | curpm = newpm; /* Don't pop $1 et al till now */ | |
1382 | ||
1383 | LEAVE; | |
1384 | ||
1385 | RETURN; | |
1386 | } | |
1387 | ||
1388 | PP(pp_iter) | |
1389 | { | |
4e35701f | 1390 | djSP; |
c09156bb | 1391 | register PERL_CONTEXT *cx; |
5f05dabc | 1392 | SV* sv; |
4633a7c4 | 1393 | AV* av; |
a0d0e21e | 1394 | |
924508f0 | 1395 | EXTEND(SP, 1); |
a0d0e21e LW |
1396 | cx = &cxstack[cxstack_ix]; |
1397 | if (cx->cx_type != CXt_LOOP) | |
1398 | DIE("panic: pp_iter"); | |
1399 | ||
4633a7c4 | 1400 | av = cx->blk_loop.iterary; |
71be2cbc | 1401 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1402 | RETPUSHNO; |
a0d0e21e | 1403 | |
7a4c00b4 | 1404 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1405 | |
93965878 NIS |
1406 | if (sv = (SvMAGICAL(av)) |
1407 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1408 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1409 | SvTEMP_off(sv); |
a0d0e21e | 1410 | else |
5f05dabc | 1411 | sv = &sv_undef; |
1412 | if (av != curstack && SvIMMORTAL(sv)) { | |
1413 | SV *lv = cx->blk_loop.iterlval; | |
71be2cbc | 1414 | if (lv && SvREFCNT(lv) > 1) { |
1415 | SvREFCNT_dec(lv); | |
1416 | lv = Nullsv; | |
1417 | } | |
5f05dabc | 1418 | if (lv) |
1419 | SvREFCNT_dec(LvTARG(lv)); | |
1420 | else { | |
68dc0745 | 1421 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1422 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1423 | LvTYPE(lv) = 'y'; |
68dc0745 | 1424 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1425 | } |
1426 | LvTARG(lv) = SvREFCNT_inc(av); | |
1427 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1428 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1429 | sv = (SV*)lv; |
1430 | } | |
a0d0e21e | 1431 | |
7a4c00b4 | 1432 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1433 | RETPUSHYES; |
1434 | } | |
1435 | ||
1436 | PP(pp_subst) | |
1437 | { | |
4e35701f | 1438 | djSP; dTARG; |
a0d0e21e LW |
1439 | register PMOP *pm = cPMOP; |
1440 | PMOP *rpm = pm; | |
1441 | register SV *dstr; | |
1442 | register char *s; | |
1443 | char *strend; | |
1444 | register char *m; | |
1445 | char *c; | |
1446 | register char *d; | |
1447 | STRLEN clen; | |
1448 | I32 iters = 0; | |
1449 | I32 maxiters; | |
1450 | register I32 i; | |
1451 | bool once; | |
71be2cbc | 1452 | bool rxtainted; |
a0d0e21e LW |
1453 | char *orig; |
1454 | I32 safebase; | |
1455 | register REGEXP *rx = pm->op_pmregexp; | |
1456 | STRLEN len; | |
1457 | int force_on_match = 0; | |
4633a7c4 | 1458 | I32 oldsave = savestack_ix; |
c277df42 IZ |
1459 | I32 update_minmatch = 1; |
1460 | SV *screamer; | |
a0d0e21e | 1461 | |
5cd24f17 | 1462 | /* known replacement string? */ |
1463 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
a0d0e21e LW |
1464 | if (op->op_flags & OPf_STACKED) |
1465 | TARG = POPs; | |
1466 | else { | |
54b9620d | 1467 | TARG = DEFSV; |
a0d0e21e | 1468 | EXTEND(SP,1); |
8ec5e241 | 1469 | } |
68dc0745 | 1470 | if (SvREADONLY(TARG) |
1471 | || (SvTYPE(TARG) > SVt_PVLV | |
1472 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
1473 | croak(no_modify); | |
8ec5e241 NIS |
1474 | PUTBACK; |
1475 | ||
a0d0e21e | 1476 | s = SvPV(TARG, len); |
68dc0745 | 1477 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1478 | force_on_match = 1; |
9212bbba | 1479 | TAINT_NOT; |
a0d0e21e LW |
1480 | |
1481 | force_it: | |
1482 | if (!pm || !s) | |
1483 | DIE("panic: do_subst"); | |
1484 | ||
1485 | strend = s + len; | |
1486 | maxiters = (strend - s) + 10; | |
1487 | ||
1488 | if (!rx->prelen && curpm) { | |
1489 | pm = curpm; | |
1490 | rx = pm->op_pmregexp; | |
1491 | } | |
c277df42 IZ |
1492 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1493 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1494 | && SvVALID(rx->check_substr)) | |
1495 | ? TARG : Nullsv); | |
1496 | safebase = (!rx->nparens && !sawampersand) ? 0 : REXEC_COPY_STR; | |
a0d0e21e LW |
1497 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1498 | SAVEINT(multiline); | |
1499 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
1500 | } | |
1501 | orig = m = s; | |
c277df42 IZ |
1502 | if (rx->check_substr) { |
1503 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
1504 | if (screamer) { | |
1505 | I32 p = -1; | |
1506 | ||
1507 | if (screamfirst[BmRARE(rx->check_substr)] < 0) | |
a0d0e21e | 1508 | goto nope; |
c277df42 | 1509 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e LW |
1510 | goto nope; |
1511 | } | |
c277df42 IZ |
1512 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
1513 | (unsigned char*)strend, | |
1514 | rx->check_substr))) | |
a0d0e21e | 1515 | goto nope; |
c277df42 IZ |
1516 | if (s && rx->check_offset_max < s - m) { |
1517 | ++BmUSEFUL(rx->check_substr); | |
1518 | s -= rx->check_offset_max; | |
a0d0e21e LW |
1519 | } |
1520 | else | |
1521 | s = m; | |
1522 | } | |
c277df42 IZ |
1523 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1524 | beginning of match, and the match is anchored at s. */ | |
1525 | else if (!multiline) { /* Anchored at beginning of string. */ | |
1526 | I32 slen; | |
1527 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] | |
1528 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
1529 | && memNE(SvPVX(rx->check_substr), | |
1530 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 1531 | goto nope; |
a0d0e21e | 1532 | } |
c277df42 IZ |
1533 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1534 | && rx->check_substr == rx->float_substr) { | |
1535 | SvREFCNT_dec(rx->check_substr); | |
1536 | rx->check_substr = Nullsv; /* opt is being useless */ | |
1537 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
1538 | } |
1539 | } | |
71be2cbc | 1540 | |
1541 | /* only replace once? */ | |
a0d0e21e | 1542 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1543 | |
1544 | /* known replacement string? */ | |
5cd24f17 | 1545 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1546 | |
1547 | /* can do inplace substitution? */ | |
c277df42 IZ |
1548 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1549 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { | |
1550 | if (!regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) { | |
8ec5e241 | 1551 | SPAGAIN; |
71be2cbc | 1552 | PUSHs(&sv_no); |
1553 | LEAVE_SCOPE(oldsave); | |
1554 | RETURN; | |
1555 | } | |
1556 | if (force_on_match) { | |
1557 | force_on_match = 0; | |
1558 | s = SvPV_force(TARG, len); | |
1559 | goto force_it; | |
1560 | } | |
71be2cbc | 1561 | d = s; |
1562 | curpm = pm; | |
1563 | SvSCREAM_off(TARG); /* disable possible screamer */ | |
1564 | if (once) { | |
c277df42 IZ |
1565 | rxtainted = RX_MATCH_TAINTED(rx); |
1566 | if (rx->subbase) { | |
1567 | m = orig + (rx->startp[0] - rx->subbase); | |
1568 | d = orig + (rx->endp[0] - rx->subbase); | |
1569 | } else { | |
1570 | m = rx->startp[0]; | |
1571 | d = rx->endp[0]; | |
1572 | } | |
71be2cbc | 1573 | s = orig; |
1574 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1575 | if (clen) { | |
1576 | Copy(c, m, clen, char); | |
1577 | m += clen; | |
a0d0e21e | 1578 | } |
71be2cbc | 1579 | i = strend - d; |
1580 | if (i > 0) { | |
1581 | Move(d, m, i, char); | |
1582 | m += i; | |
a0d0e21e | 1583 | } |
71be2cbc | 1584 | *m = '\0'; |
1585 | SvCUR_set(TARG, m - s); | |
1586 | } | |
1587 | /*SUPPRESS 560*/ | |
1588 | else if (i = m - s) { /* faster from front */ | |
1589 | d -= clen; | |
1590 | m = d; | |
1591 | sv_chop(TARG, d-i); | |
1592 | s += i; | |
1593 | while (i--) | |
1594 | *--d = *--s; | |
1595 | if (clen) | |
1596 | Copy(c, m, clen, char); | |
1597 | } | |
1598 | else if (clen) { | |
1599 | d -= clen; | |
1600 | sv_chop(TARG, d); | |
1601 | Copy(c, d, clen, char); | |
1602 | } | |
1603 | else { | |
1604 | sv_chop(TARG, d); | |
1605 | } | |
9212bbba | 1606 | TAINT_IF(rxtainted); |
8ec5e241 | 1607 | SPAGAIN; |
71be2cbc | 1608 | PUSHs(&sv_yes); |
1609 | } | |
1610 | else { | |
1611 | rxtainted = 0; | |
1612 | do { | |
1613 | if (iters++ > maxiters) | |
1614 | DIE("Substitution loop"); | |
c277df42 | 1615 | rxtainted |= RX_MATCH_TAINTED(rx); |
71be2cbc | 1616 | m = rx->startp[0]; |
1617 | /*SUPPRESS 560*/ | |
1618 | if (i = m - s) { | |
1619 | if (s != d) | |
1620 | Move(s, d, i, char); | |
1621 | d += i; | |
a0d0e21e | 1622 | } |
71be2cbc | 1623 | if (clen) { |
1624 | Copy(c, d, clen, char); | |
1625 | d += clen; | |
1626 | } | |
1627 | s = rx->endp[0]; | |
c277df42 IZ |
1628 | } while (regexec_flags(rx, s, strend, orig, s == m, |
1629 | Nullsv, NULL, 0)); /* don't match same null twice */ | |
71be2cbc | 1630 | if (s != d) { |
1631 | i = strend - s; | |
1632 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1633 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1634 | } |
9212bbba | 1635 | TAINT_IF(rxtainted); |
8ec5e241 | 1636 | SPAGAIN; |
71be2cbc | 1637 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1638 | } |
71be2cbc | 1639 | (void)SvPOK_only(TARG); |
8ec5e241 NIS |
1640 | if (SvSMAGICAL(TARG)) { |
1641 | PUTBACK; | |
1642 | mg_set(TARG); | |
1643 | SPAGAIN; | |
1644 | } | |
9212bbba | 1645 | SvTAINT(TARG); |
71be2cbc | 1646 | LEAVE_SCOPE(oldsave); |
1647 | RETURN; | |
a0d0e21e | 1648 | } |
71be2cbc | 1649 | |
c277df42 | 1650 | if (regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e LW |
1651 | if (force_on_match) { |
1652 | force_on_match = 0; | |
1653 | s = SvPV_force(TARG, len); | |
1654 | goto force_it; | |
1655 | } | |
c277df42 | 1656 | rxtainted = RX_MATCH_TAINTED(rx); |
8ec5e241 | 1657 | dstr = NEWSV(25, len); |
a0d0e21e LW |
1658 | sv_setpvn(dstr, m, s-m); |
1659 | curpm = pm; | |
1660 | if (!c) { | |
c09156bb | 1661 | register PERL_CONTEXT *cx; |
8ec5e241 | 1662 | SPAGAIN; |
a0d0e21e LW |
1663 | PUSHSUBST(cx); |
1664 | RETURNOP(cPMOP->op_pmreplroot); | |
1665 | } | |
1666 | do { | |
1667 | if (iters++ > maxiters) | |
1668 | DIE("Substitution loop"); | |
c277df42 | 1669 | rxtainted |= RX_MATCH_TAINTED(rx); |
a0d0e21e LW |
1670 | if (rx->subbase && rx->subbase != orig) { |
1671 | m = s; | |
1672 | s = orig; | |
1673 | orig = rx->subbase; | |
1674 | s = orig + (m - s); | |
1675 | strend = s + (strend - m); | |
1676 | } | |
1677 | m = rx->startp[0]; | |
1678 | sv_catpvn(dstr, s, m-s); | |
1679 | s = rx->endp[0]; | |
1680 | if (clen) | |
1681 | sv_catpvn(dstr, c, clen); | |
1682 | if (once) | |
1683 | break; | |
c277df42 | 1684 | } while (regexec_flags(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e | 1685 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1686 | |
9212bbba CS |
1687 | TAINT_IF(rxtainted); |
1688 | ||
4633a7c4 | 1689 | (void)SvOOK_off(TARG); |
cb0b1708 | 1690 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1691 | SvPVX(TARG) = SvPVX(dstr); |
1692 | SvCUR_set(TARG, SvCUR(dstr)); | |
1693 | SvLEN_set(TARG, SvLEN(dstr)); | |
1694 | SvPVX(dstr) = 0; | |
1695 | sv_free(dstr); | |
1696 | ||
a0d0e21e LW |
1697 | (void)SvPOK_only(TARG); |
1698 | SvSETMAGIC(TARG); | |
9212bbba | 1699 | SvTAINT(TARG); |
8ec5e241 | 1700 | SPAGAIN; |
a0d0e21e | 1701 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 | 1702 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1703 | RETURN; |
1704 | } | |
5cd24f17 | 1705 | goto ret_no; |
a0d0e21e LW |
1706 | |
1707 | nope: | |
c277df42 | 1708 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1709 | |
8ec5e241 NIS |
1710 | ret_no: |
1711 | SPAGAIN; | |
a0d0e21e | 1712 | PUSHs(&sv_no); |
4633a7c4 | 1713 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1714 | RETURN; |
1715 | } | |
1716 | ||
1717 | PP(pp_grepwhile) | |
1718 | { | |
4e35701f | 1719 | djSP; |
a0d0e21e LW |
1720 | |
1721 | if (SvTRUEx(POPs)) | |
1722 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; | |
1723 | ++*markstack_ptr; | |
1724 | LEAVE; /* exit inner scope */ | |
1725 | ||
1726 | /* All done yet? */ | |
924508f0 | 1727 | if (stack_base + *markstack_ptr > SP) { |
a0d0e21e | 1728 | I32 items; |
54310121 | 1729 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1730 | |
1731 | LEAVE; /* exit outer scope */ | |
1732 | (void)POPMARK; /* pop src */ | |
1733 | items = --*markstack_ptr - markstack_ptr[-1]; | |
1734 | (void)POPMARK; /* pop dst */ | |
1735 | SP = stack_base + POPMARK; /* pop original mark */ | |
54310121 | 1736 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1737 | dTARGET; |
1738 | XPUSHi(items); | |
a0d0e21e | 1739 | } |
54310121 | 1740 | else if (gimme == G_ARRAY) |
1741 | SP += items; | |
a0d0e21e LW |
1742 | RETURN; |
1743 | } | |
1744 | else { | |
1745 | SV *src; | |
1746 | ||
1747 | ENTER; /* enter inner scope */ | |
1748 | SAVESPTR(curpm); | |
1749 | ||
1750 | src = stack_base[*markstack_ptr]; | |
1751 | SvTEMP_off(src); | |
54b9620d | 1752 | DEFSV = src; |
a0d0e21e LW |
1753 | |
1754 | RETURNOP(cLOGOP->op_other); | |
1755 | } | |
1756 | } | |
1757 | ||
1758 | PP(pp_leavesub) | |
1759 | { | |
4e35701f | 1760 | djSP; |
a0d0e21e LW |
1761 | SV **mark; |
1762 | SV **newsp; | |
1763 | PMOP *newpm; | |
1764 | I32 gimme; | |
c09156bb | 1765 | register PERL_CONTEXT *cx; |
f86702cc | 1766 | struct block_sub cxsub; |
a0d0e21e LW |
1767 | |
1768 | POPBLOCK(cx,newpm); | |
f86702cc | 1769 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1770 | ||
a1f49e72 | 1771 | TAINT_NOT; |
a0d0e21e LW |
1772 | if (gimme == G_SCALAR) { |
1773 | MARK = newsp + 1; | |
1774 | if (MARK <= SP) | |
f86702cc | 1775 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e | 1776 | else { |
f86702cc | 1777 | MEXTEND(MARK, 0); |
a0d0e21e LW |
1778 | *MARK = &sv_undef; |
1779 | } | |
1780 | SP = MARK; | |
1781 | } | |
54310121 | 1782 | else if (gimme == G_ARRAY) { |
f86702cc | 1783 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1784 | if (!SvTEMP(*MARK)) { |
f86702cc | 1785 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1786 | TAINT_NOT; /* Each item is independent */ |
1787 | } | |
f86702cc | 1788 | } |
a0d0e21e | 1789 | } |
f86702cc | 1790 | PUTBACK; |
1791 | ||
1792 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
1793 | curpm = newpm; /* ... and pop $1 et al */ | |
a0d0e21e LW |
1794 | |
1795 | LEAVE; | |
a0d0e21e LW |
1796 | return pop_return(); |
1797 | } | |
1798 | ||
3de9ffa1 | 1799 | static CV * |
8ac85365 | 1800 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1801 | { |
1802 | dTHR; | |
491527d0 GS |
1803 | SV *dbsv = GvSV(DBsub); |
1804 | ||
1805 | if (!PERLDB_SUB_NN) { | |
1806 | GV *gv = CvGV(cv); | |
1807 | ||
1808 | save_item(dbsv); | |
1809 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1810 | || strEQ(GvNAME(gv), "END") | |
1811 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1812 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
1813 | && (gv = (GV*)*svp) ))) { | |
1814 | /* Use GV from the stack as a fallback. */ | |
1815 | /* GV is potentially non-unique, or contain different CV. */ | |
1816 | sv_setsv(dbsv, newRV((SV*)cv)); | |
1817 | } | |
1818 | else { | |
1819 | gv_efullname3(dbsv, gv, Nullch); | |
1820 | } | |
3de9ffa1 MB |
1821 | } |
1822 | else { | |
491527d0 GS |
1823 | SvUPGRADE(dbsv, SVt_PVIV); |
1824 | SvIOK_on(dbsv); | |
1825 | SAVEIV(SvIVX(dbsv)); | |
1826 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ | |
3de9ffa1 | 1827 | } |
491527d0 | 1828 | |
3de9ffa1 MB |
1829 | if (CvXSUB(cv)) |
1830 | curcopdb = curcop; | |
491527d0 | 1831 | cv = GvCV(DBsub); |
3de9ffa1 MB |
1832 | return cv; |
1833 | } | |
1834 | ||
a0d0e21e LW |
1835 | PP(pp_entersub) |
1836 | { | |
4e35701f | 1837 | djSP; dPOPss; |
a0d0e21e LW |
1838 | GV *gv; |
1839 | HV *stash; | |
1840 | register CV *cv; | |
c09156bb | 1841 | register PERL_CONTEXT *cx; |
5d94fbed | 1842 | I32 gimme; |
07055b4c | 1843 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
1844 | |
1845 | if (!sv) | |
1846 | DIE("Not a CODE reference"); | |
1847 | switch (SvTYPE(sv)) { | |
1848 | default: | |
1849 | if (!SvROK(sv)) { | |
748a9306 LW |
1850 | char *sym; |
1851 | ||
fb73857a | 1852 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1853 | if (hasargs) | |
1854 | SP = stack_base + POPMARK; | |
a0d0e21e | 1855 | RETURN; |
fb73857a | 1856 | } |
15ff848f CS |
1857 | if (SvGMAGICAL(sv)) { |
1858 | mg_get(sv); | |
1859 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
1860 | } | |
1861 | else | |
1862 | sym = SvPV(sv, na); | |
1863 | if (!sym) | |
a0d0e21e LW |
1864 | DIE(no_usym, "a subroutine"); |
1865 | if (op->op_private & HINT_STRICT_REFS) | |
748a9306 LW |
1866 | DIE(no_symref, sym, "a subroutine"); |
1867 | cv = perl_get_cv(sym, TRUE); | |
a0d0e21e LW |
1868 | break; |
1869 | } | |
1870 | cv = (CV*)SvRV(sv); | |
1871 | if (SvTYPE(cv) == SVt_PVCV) | |
1872 | break; | |
1873 | /* FALL THROUGH */ | |
1874 | case SVt_PVHV: | |
1875 | case SVt_PVAV: | |
1876 | DIE("Not a CODE reference"); | |
1877 | case SVt_PVCV: | |
1878 | cv = (CV*)sv; | |
1879 | break; | |
1880 | case SVt_PVGV: | |
8ebc5c01 | 1881 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e LW |
1882 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1883 | break; | |
1884 | } | |
1885 | ||
1886 | ENTER; | |
1887 | SAVETMPS; | |
1888 | ||
1889 | retry: | |
1890 | if (!cv) | |
1891 | DIE("Not a CODE reference"); | |
1892 | ||
1893 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
44a8e56a | 1894 | GV* autogv; |
22239a37 | 1895 | SV* sub_name; |
44a8e56a | 1896 | |
1897 | /* anonymous or undef'd function leaves us no recourse */ | |
1898 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
1899 | DIE("Undefined subroutine called"); | |
1900 | /* autoloaded stub? */ | |
1901 | if (cv != GvCV(gv)) { | |
1902 | cv = GvCV(gv); | |
1903 | goto retry; | |
a0d0e21e | 1904 | } |
44a8e56a | 1905 | /* should call AUTOLOAD now? */ |
54310121 | 1906 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1907 | FALSE))) | |
1908 | { | |
44a8e56a | 1909 | cv = GvCV(autogv); |
1910 | goto retry; | |
a0d0e21e | 1911 | } |
44a8e56a | 1912 | /* sorry */ |
22239a37 NIS |
1913 | sub_name = sv_newmortal(); |
1914 | gv_efullname3(sub_name, gv, Nullch); | |
1915 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
a0d0e21e LW |
1916 | } |
1917 | ||
54310121 | 1918 | gimme = GIMME_V; |
3de9ffa1 | 1919 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 | 1920 | cv = get_db_sub(&sv, cv); |
3de9ffa1 MB |
1921 | if (!cv) |
1922 | DIE("No DBsub routine"); | |
a0d0e21e | 1923 | |
11343788 | 1924 | #ifdef USE_THREADS |
3de9ffa1 MB |
1925 | /* |
1926 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
1927 | * If so, we gain a lock on the CV, the first argument or the |
1928 | * stash (for static methods), as appropriate. This has to be | |
1929 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
1930 | * reschedule by returning a new op. | |
3de9ffa1 | 1931 | */ |
11343788 | 1932 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
1933 | if (CvFLAGS(cv) & CVf_LOCKED) { |
1934 | MAGIC *mg; | |
1935 | if (CvFLAGS(cv) & CVf_METHOD) { | |
1936 | if (SP > stack_base + TOPMARK) | |
1937 | sv = *(stack_base + TOPMARK + 1); | |
1938 | else { | |
1939 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1940 | croak("no argument for locked method call"); | |
1941 | } | |
1942 | if (SvROK(sv)) | |
1943 | sv = SvRV(sv); | |
458fb581 MB |
1944 | else { |
1945 | STRLEN len; | |
1946 | char *stashname = SvPV(sv, len); | |
1947 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
1948 | } | |
77a005ab MB |
1949 | } |
1950 | else { | |
1951 | sv = (SV*)cv; | |
1952 | } | |
1953 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1954 | mg = condpair_magic(sv); | |
1955 | MUTEX_LOCK(MgMUTEXP(mg)); | |
1956 | if (MgOWNER(mg) == thr) | |
1957 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
1958 | else { | |
1959 | while (MgOWNER(mg)) | |
1960 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
1961 | MgOWNER(mg) = thr; | |
1fd28e87 MB |
1962 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1963 | thr, sv);) | |
77a005ab | 1964 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e | 1965 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab | 1966 | save_destructor(unlock_condpair, sv); |
11343788 | 1967 | } |
77a005ab | 1968 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 1969 | } |
3de9ffa1 MB |
1970 | /* |
1971 | * Now we have permission to enter the sub, we must distinguish | |
1972 | * four cases. (0) It's an XSUB (in which case we don't care | |
1973 | * about ownership); (1) it's ours already (and we're recursing); | |
1974 | * (2) it's free (but we may already be using a cached clone); | |
1975 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
1976 | * Case (2) means we look for a clone--if we have one, use it | |
1977 | * otherwise grab ownership of cv. Case (3) means we look for a | |
1978 | * clone (for non-XSUBs) and have to create one if we don't | |
1979 | * already have one. | |
1980 | * Why look for a clone in case (2) when we could just grab | |
1981 | * ownership of cv straight away? Well, we could be recursing, | |
1982 | * i.e. we originally tried to enter cv while another thread | |
1983 | * owned it (hence we used a clone) but it has been freed up | |
1984 | * and we're now recursing into it. It may or may not be "better" | |
1985 | * to use the clone but at least CvDEPTH can be trusted. | |
1986 | */ | |
1987 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
1988 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 1989 | else { |
3de9ffa1 MB |
1990 | /* Case (2) or (3) */ |
1991 | SV **svp; | |
1992 | ||
11343788 | 1993 | /* |
3de9ffa1 MB |
1994 | * XXX Might it be better to release CvMUTEXP(cv) while we |
1995 | * do the hv_fetch? We might find someone has pinched it | |
1996 | * when we look again, in which case we would be in case | |
1997 | * (3) instead of (2) so we'd have to clone. Would the fact | |
1998 | * that we released the mutex more quickly make up for this? | |
1999 | */ | |
6ee623d5 GS |
2000 | if (threadnum && |
2001 | (svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) | |
2002 | { | |
3de9ffa1 | 2003 | /* We already have a clone to use */ |
11343788 | 2004 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 MB |
2005 | cv = *(CV**)svp; |
2006 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
2007 | "entersub: %p already has clone %p:%s\n", |
2008 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2009 | CvOWNER(cv) = thr; |
2010 | SvREFCNT_inc(cv); | |
2011 | if (CvDEPTH(cv) == 0) | |
2012 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
2013 | } | |
11343788 | 2014 | else { |
3de9ffa1 MB |
2015 | /* (2) => grab ownership of cv. (3) => make clone */ |
2016 | if (!CvOWNER(cv)) { | |
2017 | CvOWNER(cv) = thr; | |
2018 | SvREFCNT_inc(cv); | |
11343788 | 2019 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 | 2020 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2021 | "entersub: %p grabbing %p:%s in stash %s\n", |
2022 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
2023 | HvNAME(CvSTASH(cv)) : "(none)")); |
2024 | } else { | |
2025 | /* Make a new clone. */ | |
2026 | CV *clonecv; | |
2027 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2028 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2029 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
2030 | "entersub: %p cloning %p:%s\n", |
2031 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2032 | /* |
2033 | * We're creating a new clone so there's no race | |
2034 | * between the original MUTEX_UNLOCK and the | |
2035 | * SvREFCNT_inc since no one will be trying to undef | |
2036 | * it out from underneath us. At least, I don't think | |
2037 | * there's a race... | |
2038 | */ | |
2039 | clonecv = cv_clone(cv); | |
2040 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2041 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2042 | CvOWNER(clonecv) = thr; |
2043 | cv = clonecv; | |
11343788 | 2044 | SvREFCNT_inc(cv); |
11343788 | 2045 | } |
3de9ffa1 MB |
2046 | DEBUG_L(if (CvDEPTH(cv) != 0) |
2047 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", | |
2048 | CvDEPTH(cv));); | |
2049 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2050 | } |
3de9ffa1 | 2051 | } |
11343788 MB |
2052 | #endif /* USE_THREADS */ |
2053 | ||
a0d0e21e LW |
2054 | if (CvXSUB(cv)) { |
2055 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 2056 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
2057 | dMARK; |
2058 | register I32 items = SP - MARK; | |
67955e0c | 2059 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2060 | while (SP > mark) { |
2061 | SP[1] = SP[0]; | |
2062 | SP--; | |
a0d0e21e LW |
2063 | } |
2064 | stack_sp = mark + 1; | |
ecfc5424 AD |
2065 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2066 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
2067 | MARK - stack_base + 1, | |
2068 | items); | |
a0d0e21e LW |
2069 | stack_sp = stack_base + items; |
2070 | } | |
2071 | else { | |
748a9306 LW |
2072 | I32 markix = TOPMARK; |
2073 | ||
a0d0e21e | 2074 | PUTBACK; |
67955e0c | 2075 | |
2076 | if (!hasargs) { | |
2077 | /* Need to copy @_ to stack. Alternative may be to | |
2078 | * switch stack to @_, and copy return values | |
2079 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2080 | AV* av; |
2081 | I32 items; | |
2082 | #ifdef USE_THREADS | |
2083 | av = (AV*)curpad[0]; | |
2084 | #else | |
2085 | av = GvAV(defgv); | |
2086 | #endif /* USE_THREADS */ | |
93965878 | 2087 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2088 | |
2089 | if (items) { | |
2090 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2091 | EXTEND(SP, items); |
2092 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2093 | SP += items; | |
67955e0c | 2094 | PUTBACK ; |
2095 | } | |
2096 | } | |
2097 | if (curcopdb) { /* We assume that the first | |
2098 | XSUB in &DB::sub is the | |
2099 | called one. */ | |
2100 | SAVESPTR(curcop); | |
2101 | curcop = curcopdb; | |
2102 | curcopdb = NULL; | |
2103 | } | |
2104 | /* Do we need to open block here? XXXX */ | |
a0d0e21e | 2105 | (void)(*CvXSUB(cv))(cv); |
748a9306 LW |
2106 | |
2107 | /* Enforce some sanity in scalar context. */ | |
5d94fbed | 2108 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 LW |
2109 | if (markix > stack_sp - stack_base) |
2110 | *(stack_base + markix) = &sv_undef; | |
2111 | else | |
2112 | *(stack_base + markix) = *stack_sp; | |
2113 | stack_sp = stack_base + markix; | |
2114 | } | |
a0d0e21e LW |
2115 | } |
2116 | LEAVE; | |
2117 | return NORMAL; | |
2118 | } | |
2119 | else { | |
2120 | dMARK; | |
2121 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2122 | AV* padlist = CvPADLIST(cv); |
2123 | SV** svp = AvARRAY(padlist); | |
2124 | push_return(op->op_next); | |
2125 | PUSHBLOCK(cx, CXt_SUB, MARK); | |
2126 | PUSHSUB(cx); | |
2127 | CvDEPTH(cv)++; | |
2128 | if (CvDEPTH(cv) < 2) | |
2129 | (void)SvREFCNT_inc(cv); | |
2130 | else { /* save temporaries on recursion? */ | |
5f05dabc | 2131 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 | 2132 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a | 2133 | sub_crush_depth(cv); |
93965878 | 2134 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2135 | AV *av; |
2136 | AV *newpad = newAV(); | |
4aa0a1f7 | 2137 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2138 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2139 | svp = AvARRAY(svp[0]); |
748a9306 | 2140 | for ( ;ix > 0; ix--) { |
a0d0e21e | 2141 | if (svp[ix] != &sv_undef) { |
748a9306 | 2142 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2143 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2144 | || *name == '&') /* anonymous code? */ | |
2145 | { | |
2146 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2147 | } |
2148 | else { /* our own lexical */ | |
2149 | if (*name == '@') | |
2150 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2151 | else if (*name == '%') | |
2152 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2153 | else | |
2154 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2155 | SvPADMY_on(sv); | |
2156 | } | |
a0d0e21e LW |
2157 | } |
2158 | else { | |
748a9306 | 2159 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2160 | SvPADTMP_on(sv); |
2161 | } | |
2162 | } | |
2163 | av = newAV(); /* will be @_ */ | |
2164 | av_extend(av, 0); | |
2165 | av_store(newpad, 0, (SV*)av); | |
2166 | AvFLAGS(av) = AVf_REIFY; | |
2167 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2168 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2169 | svp = AvARRAY(padlist); |
2170 | } | |
2171 | } | |
6d4ff0d2 MB |
2172 | #ifdef USE_THREADS |
2173 | if (!hasargs) { | |
a0d0e21e | 2174 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 | 2175 | |
93965878 | 2176 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2177 | if (items) { |
2178 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2179 | EXTEND(SP, items); |
2180 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2181 | SP += items; | |
6d4ff0d2 MB |
2182 | PUTBACK ; |
2183 | } | |
2184 | } | |
2185 | #endif /* USE_THREADS */ | |
2186 | SAVESPTR(curpad); | |
2187 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
2188 | #ifndef USE_THREADS | |
2189 | if (hasargs) | |
2190 | #endif /* USE_THREADS */ | |
2191 | { | |
2192 | AV* av; | |
a0d0e21e LW |
2193 | SV** ary; |
2194 | ||
77a005ab | 2195 | #if 0 |
0f15f207 MB |
2196 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2197 | "%p entersub preparing @_\n", thr)); | |
77a005ab | 2198 | #endif |
6d4ff0d2 | 2199 | av = (AV*)curpad[0]; |
a0d0e21e LW |
2200 | if (AvREAL(av)) { |
2201 | av_clear(av); | |
2202 | AvREAL_off(av); | |
2203 | } | |
6d4ff0d2 | 2204 | #ifndef USE_THREADS |
a0d0e21e | 2205 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 | 2206 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 MB |
2207 | #endif /* USE_THREADS */ |
2208 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2209 | ++MARK; |
2210 | ||
2211 | if (items > AvMAX(av) + 1) { | |
2212 | ary = AvALLOC(av); | |
2213 | if (AvARRAY(av) != ary) { | |
2214 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2215 | SvPVX(av) = (char*)ary; | |
2216 | } | |
2217 | if (items > AvMAX(av) + 1) { | |
2218 | AvMAX(av) = items - 1; | |
2219 | Renew(ary,items,SV*); | |
2220 | AvALLOC(av) = ary; | |
2221 | SvPVX(av) = (char*)ary; | |
2222 | } | |
2223 | } | |
2224 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2225 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2226 | |
2227 | while (items--) { | |
2228 | if (*MARK) | |
2229 | SvTEMP_off(*MARK); | |
2230 | MARK++; | |
2231 | } | |
2232 | } | |
77a005ab | 2233 | #if 0 |
0f15f207 MB |
2234 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2235 | "%p entersub returning %p\n", thr, CvSTART(cv))); | |
77a005ab | 2236 | #endif |
a0d0e21e LW |
2237 | RETURNOP(CvSTART(cv)); |
2238 | } | |
2239 | } | |
2240 | ||
44a8e56a | 2241 | void |
8ac85365 | 2242 | sub_crush_depth(CV *cv) |
44a8e56a | 2243 | { |
2244 | if (CvANON(cv)) | |
2245 | warn("Deep recursion on anonymous subroutine"); | |
2246 | else { | |
2247 | SV* tmpstr = sv_newmortal(); | |
2248 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
2249 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); | |
2250 | } | |
2251 | } | |
2252 | ||
a0d0e21e LW |
2253 | PP(pp_aelem) |
2254 | { | |
4e35701f | 2255 | djSP; |
a0d0e21e | 2256 | SV** svp; |
748a9306 | 2257 | I32 elem = POPi; |
68dc0745 | 2258 | AV* av = (AV*)POPs; |
2259 | U32 lval = op->op_flags & OPf_MOD; | |
2260 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
a0d0e21e | 2261 | |
748a9306 LW |
2262 | if (elem > 0) |
2263 | elem -= curcop->cop_arybase; | |
a0d0e21e LW |
2264 | if (SvTYPE(av) != SVt_PVAV) |
2265 | RETPUSHUNDEF; | |
68dc0745 | 2266 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2267 | if (lval) { |
68dc0745 | 2268 | if (!svp || *svp == &sv_undef) { |
2269 | SV* lv; | |
2270 | if (!defer) | |
2271 | DIE(no_aelem, elem); | |
2272 | lv = sv_newmortal(); | |
2273 | sv_upgrade(lv, SVt_PVLV); | |
2274 | LvTYPE(lv) = 'y'; | |
2275 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2276 | LvTARG(lv) = SvREFCNT_inc(av); | |
2277 | LvTARGOFF(lv) = elem; | |
2278 | LvTARGLEN(lv) = 1; | |
2279 | PUSHs(lv); | |
2280 | RETURN; | |
2281 | } | |
a0d0e21e | 2282 | if (op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2283 | save_aelem(av, elem, svp); |
5f05dabc | 2284 | else if (op->op_private & OPpDEREF) |
68dc0745 | 2285 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e LW |
2286 | } |
2287 | PUSHs(svp ? *svp : &sv_undef); | |
2288 | RETURN; | |
2289 | } | |
2290 | ||
02a9e968 | 2291 | void |
8ac85365 | 2292 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2293 | { |
2294 | if (SvGMAGICAL(sv)) | |
2295 | mg_get(sv); | |
2296 | if (!SvOK(sv)) { | |
2297 | if (SvREADONLY(sv)) | |
2298 | croak(no_modify); | |
5f05dabc | 2299 | if (SvTYPE(sv) < SVt_RV) |
2300 | sv_upgrade(sv, SVt_RV); | |
2301 | else if (SvTYPE(sv) >= SVt_PV) { | |
2302 | (void)SvOOK_off(sv); | |
2303 | Safefree(SvPVX(sv)); | |
2304 | SvLEN(sv) = SvCUR(sv) = 0; | |
2305 | } | |
68dc0745 | 2306 | switch (to_what) { |
5f05dabc | 2307 | case OPpDEREF_SV: |
8c52afec | 2308 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2309 | break; |
2310 | case OPpDEREF_AV: | |
2311 | SvRV(sv) = (SV*)newAV(); | |
2312 | break; | |
2313 | case OPpDEREF_HV: | |
2314 | SvRV(sv) = (SV*)newHV(); | |
2315 | break; | |
2316 | } | |
02a9e968 CS |
2317 | SvROK_on(sv); |
2318 | SvSETMAGIC(sv); | |
2319 | } | |
2320 | } | |
2321 | ||
a0d0e21e LW |
2322 | PP(pp_method) |
2323 | { | |
4e35701f | 2324 | djSP; |
a0d0e21e LW |
2325 | SV* sv; |
2326 | SV* ob; | |
2327 | GV* gv; | |
56304f61 CS |
2328 | HV* stash; |
2329 | char* name; | |
ac91690f CS |
2330 | char* packname; |
2331 | STRLEN packlen; | |
a0d0e21e | 2332 | |
fb73857a | 2333 | if (SvROK(TOPs)) { |
2334 | sv = SvRV(TOPs); | |
2335 | if (SvTYPE(sv) == SVt_PVCV) { | |
2336 | SETs(sv); | |
2337 | RETURN; | |
2338 | } | |
2339 | } | |
2340 | ||
56304f61 | 2341 | name = SvPV(TOPs, na); |
a0d0e21e LW |
2342 | sv = *(stack_base + TOPMARK + 1); |
2343 | ||
16d20bd9 AD |
2344 | if (SvGMAGICAL(sv)) |
2345 | mg_get(sv); | |
a0d0e21e | 2346 | if (SvROK(sv)) |
16d20bd9 | 2347 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2348 | else { |
2349 | GV* iogv; | |
a0d0e21e | 2350 | |
56304f61 | 2351 | packname = Nullch; |
a0d0e21e | 2352 | if (!SvOK(sv) || |
56304f61 | 2353 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2354 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2355 | !(ob=(SV*)GvIO(iogv))) | |
2356 | { | |
56304f61 | 2357 | if (!packname || !isIDFIRST(*packname)) |
ac91690f | 2358 | DIE("Can't call method \"%s\" without a package or object reference", name); |
56304f61 | 2359 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2360 | goto fetch; |
a0d0e21e | 2361 | } |
ac91690f | 2362 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2363 | } |
2364 | ||
ac91690f | 2365 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2366 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2367 | |
56304f61 | 2368 | stash = SvSTASH(ob); |
a0d0e21e | 2369 | |
ac91690f | 2370 | fetch: |
ac91690f | 2371 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2372 | if (!gv) { |
2373 | char* leaf = name; | |
2374 | char* sep = Nullch; | |
2375 | char* p; | |
2376 | ||
2377 | for (p = name; *p; p++) { | |
2378 | if (*p == '\'') | |
2379 | sep = p, leaf = p + 1; | |
2380 | else if (*p == ':' && *(p + 1) == ':') | |
2381 | sep = p, leaf = p + 2; | |
2382 | } | |
2383 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
2384 | packname = HvNAME(sep ? curcop->cop_stash : stash); | |
2385 | packlen = strlen(packname); | |
2386 | } | |
2387 | else { | |
2388 | packname = name; | |
2389 | packlen = sep - name; | |
2390 | } | |
2391 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2392 | leaf, (int)packlen, packname); | |
2393 | } | |
8ebc5c01 | 2394 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2395 | RETURN; |
2396 | } | |
22239a37 | 2397 |