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; |
a0d0e21e LW |
68 | EXTEND(sp,1); |
69 | if (op->op_private & OPpLVAL_INTRO) | |
70 | PUSHs(save_scalar(cGVOP->op_gv)); | |
71 | else | |
72 | PUSHs(GvSV(cGVOP->op_gv)); | |
73 | RETURN; | |
74 | } | |
75 | ||
76 | PP(pp_null) | |
77 | { | |
78 | return NORMAL; | |
79 | } | |
80 | ||
81 | PP(pp_pushmark) | |
82 | { | |
83 | PUSHMARK(stack_sp); | |
84 | return NORMAL; | |
85 | } | |
86 | ||
87 | PP(pp_stringify) | |
88 | { | |
4e35701f | 89 | djSP; dTARGET; |
a0d0e21e 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]); | |
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 | { | |
4e35701f | 200 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
201 | { |
202 | dPOPnv; | |
54310121 | 203 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
204 | RETURN; |
205 | } | |
206 | } | |
207 | ||
208 | PP(pp_preinc) | |
209 | { | |
4e35701f | 210 | djSP; |
68dc0745 | 211 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a | 212 | croak(no_modify); |
55497cff | 213 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
214 | SvIVX(TOPs) != IV_MAX) | |
215 | { | |
748a9306 | 216 | ++SvIVX(TOPs); |
55497cff | 217 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
218 | } |
219 | else | |
220 | sv_inc(TOPs); | |
a0d0e21e LW |
221 | SvSETMAGIC(TOPs); |
222 | return NORMAL; | |
223 | } | |
224 | ||
225 | PP(pp_or) | |
226 | { | |
4e35701f | 227 | djSP; |
a0d0e21e LW |
228 | if (SvTRUE(TOPs)) |
229 | RETURN; | |
230 | else { | |
231 | --SP; | |
232 | RETURNOP(cLOGOP->op_other); | |
233 | } | |
234 | } | |
235 | ||
236 | PP(pp_add) | |
237 | { | |
4e35701f | 238 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 239 | { |
7a4c00b4 | 240 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
241 | SETn( left + right ); |
242 | RETURN; | |
243 | } | |
244 | } | |
245 | ||
246 | PP(pp_aelemfast) | |
247 | { | |
4e35701f | 248 | djSP; |
a0d0e21e LW |
249 | AV *av = GvAV((GV*)cSVOP->op_sv); |
250 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); | |
251 | PUSHs(svp ? *svp : &sv_undef); | |
252 | RETURN; | |
253 | } | |
254 | ||
255 | PP(pp_join) | |
256 | { | |
4e35701f | 257 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
258 | MARK++; |
259 | do_join(TARG, *MARK, MARK, SP); | |
260 | SP = MARK; | |
261 | SETs(TARG); | |
262 | RETURN; | |
263 | } | |
264 | ||
265 | PP(pp_pushre) | |
266 | { | |
4e35701f | 267 | djSP; |
44a8e56a | 268 | #ifdef DEBUGGING |
269 | /* | |
270 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
271 | * will be enough to hold an OP*. | |
272 | */ | |
273 | SV* sv = sv_newmortal(); | |
274 | sv_upgrade(sv, SVt_PVLV); | |
275 | LvTYPE(sv) = '/'; | |
276 | Copy(&op, &LvTARGOFF(sv), 1, OP*); | |
277 | XPUSHs(sv); | |
278 | #else | |
a0d0e21e | 279 | XPUSHs((SV*)op); |
44a8e56a | 280 | #endif |
a0d0e21e LW |
281 | RETURN; |
282 | } | |
283 | ||
284 | /* Oversized hot code. */ | |
285 | ||
286 | PP(pp_print) | |
287 | { | |
4e35701f | 288 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
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; | |
3049007d | 298 | if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 | 299 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
300 | /* If using default handle then we need to make space to |
301 | * pass object as 1st arg, so move other args up ... | |
302 | */ | |
4352c267 | 303 | MEXTEND(SP, 1); |
68dc0745 | 304 | ++MARK; |
305 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
306 | ++SP; | |
307 | } | |
308 | PUSHMARK(MARK - 1); | |
236988e4 | 309 | *MARK = mg->mg_obj; |
68dc0745 | 310 | PUTBACK; |
236988e4 | 311 | ENTER; |
312 | perl_call_method("PRINT", G_SCALAR); | |
313 | LEAVE; | |
314 | SPAGAIN; | |
68dc0745 | 315 | MARK = ORIGMARK + 1; |
316 | *MARK = *SP; | |
317 | SP = MARK; | |
236988e4 | 318 | RETURN; |
319 | } | |
a0d0e21e | 320 | if (!(io = GvIO(gv))) { |
748a9306 LW |
321 | if (dowarn) { |
322 | SV* sv = sv_newmortal(); | |
4f732624 | 323 | gv_fullname3(sv, gv, Nullch); |
748a9306 LW |
324 | warn("Filehandle %s never opened", SvPV(sv,na)); |
325 | } | |
326 | ||
327 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
328 | goto just_say_no; |
329 | } | |
330 | else if (!(fp = IoOFP(io))) { | |
331 | if (dowarn) { | |
748a9306 | 332 | SV* sv = sv_newmortal(); |
4f732624 | 333 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 334 | if (IoIFP(io)) |
748a9306 | 335 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e | 336 | else |
748a9306 | 337 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e | 338 | } |
748a9306 | 339 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
340 | goto just_say_no; |
341 | } | |
342 | else { | |
343 | MARK++; | |
344 | if (ofslen) { | |
345 | while (MARK <= SP) { | |
346 | if (!do_print(*MARK, fp)) | |
347 | break; | |
348 | MARK++; | |
349 | if (MARK <= SP) { | |
760ac839 | 350 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
351 | MARK--; |
352 | break; | |
353 | } | |
354 | } | |
355 | } | |
356 | } | |
357 | else { | |
358 | while (MARK <= SP) { | |
359 | if (!do_print(*MARK, fp)) | |
360 | break; | |
361 | MARK++; | |
362 | } | |
363 | } | |
364 | if (MARK <= SP) | |
365 | goto just_say_no; | |
366 | else { | |
367 | if (orslen) | |
760ac839 | 368 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e LW |
369 | goto just_say_no; |
370 | ||
371 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 372 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
373 | goto just_say_no; |
374 | } | |
375 | } | |
376 | SP = ORIGMARK; | |
377 | PUSHs(&sv_yes); | |
378 | RETURN; | |
379 | ||
380 | just_say_no: | |
381 | SP = ORIGMARK; | |
382 | PUSHs(&sv_undef); | |
383 | RETURN; | |
384 | } | |
385 | ||
386 | PP(pp_rv2av) | |
387 | { | |
4e35701f | 388 | djSP; dPOPss; |
a0d0e21e LW |
389 | AV *av; |
390 | ||
391 | if (SvROK(sv)) { | |
392 | wasref: | |
393 | av = (AV*)SvRV(sv); | |
394 | if (SvTYPE(av) != SVt_PVAV) | |
395 | DIE("Not an ARRAY reference"); | |
a0d0e21e LW |
396 | if (op->op_flags & OPf_REF) { |
397 | PUSHs((SV*)av); | |
398 | RETURN; | |
399 | } | |
400 | } | |
401 | else { | |
402 | if (SvTYPE(sv) == SVt_PVAV) { | |
403 | av = (AV*)sv; | |
404 | if (op->op_flags & OPf_REF) { | |
405 | PUSHs((SV*)av); | |
406 | RETURN; | |
407 | } | |
408 | } | |
409 | else { | |
67955e0c | 410 | GV *gv; |
411 | ||
a0d0e21e | 412 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
413 | char *sym; |
414 | ||
a0d0e21e LW |
415 | if (SvGMAGICAL(sv)) { |
416 | mg_get(sv); | |
417 | if (SvROK(sv)) | |
418 | goto wasref; | |
419 | } | |
420 | if (!SvOK(sv)) { | |
421 | if (op->op_flags & OPf_REF || | |
422 | op->op_private & HINT_STRICT_REFS) | |
423 | DIE(no_usym, "an ARRAY"); | |
d83e6520 CS |
424 | if (dowarn) |
425 | warn(warn_uninit); | |
4633a7c4 LW |
426 | if (GIMME == G_ARRAY) |
427 | RETURN; | |
a0d0e21e LW |
428 | RETPUSHUNDEF; |
429 | } | |
748a9306 | 430 | sym = SvPV(sv,na); |
a0d0e21e | 431 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 432 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c | 433 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
434 | } else { | |
435 | gv = (GV*)sv; | |
a0d0e21e | 436 | } |
67955e0c | 437 | av = GvAVn(gv); |
a0d0e21e | 438 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 439 | av = save_ary(gv); |
a0d0e21e LW |
440 | if (op->op_flags & OPf_REF) { |
441 | PUSHs((SV*)av); | |
442 | RETURN; | |
443 | } | |
444 | } | |
445 | } | |
446 | ||
447 | if (GIMME == G_ARRAY) { | |
448 | I32 maxarg = AvFILL(av) + 1; | |
93965878 NIS |
449 | EXTEND(SP, maxarg); |
450 | if (SvRMAGICAL(av)) { | |
451 | U32 i; | |
452 | for (i=0; i < maxarg; i++) { | |
453 | SV **svp = av_fetch(av, i, FALSE); | |
454 | SP[i+1] = (svp) ? *svp : &sv_undef; | |
455 | } | |
456 | } | |
457 | else { | |
458 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
459 | } | |
a0d0e21e LW |
460 | SP += maxarg; |
461 | } | |
462 | else { | |
463 | dTARGET; | |
464 | I32 maxarg = AvFILL(av) + 1; | |
465 | PUSHi(maxarg); | |
466 | } | |
467 | RETURN; | |
468 | } | |
469 | ||
470 | PP(pp_rv2hv) | |
471 | { | |
4e35701f | 472 | djSP; dTOPss; |
a0d0e21e LW |
473 | HV *hv; |
474 | ||
475 | if (SvROK(sv)) { | |
476 | wasref: | |
477 | hv = (HV*)SvRV(sv); | |
c750a3ec | 478 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e | 479 | DIE("Not a HASH reference"); |
a0d0e21e LW |
480 | if (op->op_flags & OPf_REF) { |
481 | SETs((SV*)hv); | |
482 | RETURN; | |
483 | } | |
484 | } | |
485 | else { | |
c750a3ec | 486 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e LW |
487 | hv = (HV*)sv; |
488 | if (op->op_flags & OPf_REF) { | |
489 | SETs((SV*)hv); | |
490 | RETURN; | |
491 | } | |
492 | } | |
493 | else { | |
67955e0c | 494 | GV *gv; |
495 | ||
a0d0e21e | 496 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
497 | char *sym; |
498 | ||
a0d0e21e LW |
499 | if (SvGMAGICAL(sv)) { |
500 | mg_get(sv); | |
501 | if (SvROK(sv)) | |
502 | goto wasref; | |
503 | } | |
504 | if (!SvOK(sv)) { | |
505 | if (op->op_flags & OPf_REF || | |
506 | op->op_private & HINT_STRICT_REFS) | |
507 | DIE(no_usym, "a HASH"); | |
d83e6520 CS |
508 | if (dowarn) |
509 | warn(warn_uninit); | |
4633a7c4 LW |
510 | if (GIMME == G_ARRAY) { |
511 | SP--; | |
512 | RETURN; | |
513 | } | |
a0d0e21e LW |
514 | RETSETUNDEF; |
515 | } | |
748a9306 | 516 | sym = SvPV(sv,na); |
a0d0e21e | 517 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 518 | DIE(no_symref, sym, "a HASH"); |
67955e0c | 519 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
520 | } else { | |
521 | gv = (GV*)sv; | |
a0d0e21e | 522 | } |
67955e0c | 523 | hv = GvHVn(gv); |
a0d0e21e | 524 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 525 | hv = save_hash(gv); |
a0d0e21e LW |
526 | if (op->op_flags & OPf_REF) { |
527 | SETs((SV*)hv); | |
528 | RETURN; | |
529 | } | |
530 | } | |
531 | } | |
532 | ||
533 | if (GIMME == G_ARRAY) { /* array wanted */ | |
534 | *stack_sp = (SV*)hv; | |
535 | return do_kv(ARGS); | |
536 | } | |
537 | else { | |
538 | dTARGET; | |
c750a3ec | 539 | /* This bit is OK even when hv is really an AV */ |
46fc3d4c | 540 | if (HvFILL(hv)) |
541 | sv_setpvf(TARG, "%ld/%ld", | |
542 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
543 | else |
544 | sv_setiv(TARG, 0); | |
c750a3ec | 545 | |
a0d0e21e LW |
546 | SETTARG; |
547 | RETURN; | |
548 | } | |
549 | } | |
550 | ||
551 | PP(pp_aassign) | |
552 | { | |
4e35701f | 553 | djSP; |
a0d0e21e LW |
554 | SV **lastlelem = stack_sp; |
555 | SV **lastrelem = stack_base + POPMARK; | |
556 | SV **firstrelem = stack_base + POPMARK + 1; | |
557 | SV **firstlelem = lastrelem + 1; | |
558 | ||
559 | register SV **relem; | |
560 | register SV **lelem; | |
561 | ||
562 | register SV *sv; | |
563 | register AV *ary; | |
564 | ||
54310121 | 565 | I32 gimme; |
a0d0e21e LW |
566 | HV *hash; |
567 | I32 i; | |
568 | int magic; | |
569 | ||
570 | delaymagic = DM_DELAY; /* catch simultaneous items */ | |
571 | ||
572 | /* If there's a common identifier on both sides we have to take | |
573 | * special care that assigning the identifier on the left doesn't | |
574 | * clobber a value on the right that's used later in the list. | |
575 | */ | |
576 | if (op->op_private & OPpASSIGN_COMMON) { | |
577 | for (relem = firstrelem; relem <= lastrelem; relem++) { | |
578 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
579 | if (sv = *relem) { |
580 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 581 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 582 | } |
a0d0e21e LW |
583 | } |
584 | } | |
585 | ||
586 | relem = firstrelem; | |
587 | lelem = firstlelem; | |
588 | ary = Null(AV*); | |
589 | hash = Null(HV*); | |
590 | while (lelem <= lastlelem) { | |
bbce6d69 | 591 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
592 | sv = *lelem++; |
593 | switch (SvTYPE(sv)) { | |
594 | case SVt_PVAV: | |
595 | ary = (AV*)sv; | |
748a9306 | 596 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
597 | |
598 | av_clear(ary); | |
7e42bd57 | 599 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
600 | i = 0; |
601 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 602 | SV **didstore; |
a0d0e21e LW |
603 | sv = NEWSV(28,0); |
604 | assert(*relem); | |
605 | sv_setsv(sv,*relem); | |
606 | *(relem++) = sv; | |
5117ca91 GS |
607 | didstore = av_store(ary,i++,sv); |
608 | if (magic) { | |
fb73857a | 609 | if (SvSMAGICAL(sv)) |
610 | mg_set(sv); | |
5117ca91 GS |
611 | if (!didstore) |
612 | SvREFCNT_dec(sv); | |
613 | } | |
bbce6d69 | 614 | TAINT_NOT; |
a0d0e21e LW |
615 | } |
616 | break; | |
617 | case SVt_PVHV: { | |
a0d0e21e LW |
618 | SV *tmpstr; |
619 | ||
620 | hash = (HV*)sv; | |
748a9306 | 621 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
622 | hv_clear(hash); |
623 | ||
624 | while (relem < lastrelem) { /* gobble up all the rest */ | |
625 | STRLEN len; | |
5117ca91 | 626 | HE *didstore; |
4633a7c4 | 627 | if (*relem) |
a0d0e21e | 628 | sv = *(relem++); |
4633a7c4 | 629 | else |
a0d0e21e | 630 | sv = &sv_no, relem++; |
a0d0e21e LW |
631 | tmpstr = NEWSV(29,0); |
632 | if (*relem) | |
633 | sv_setsv(tmpstr,*relem); /* value */ | |
634 | *(relem++) = tmpstr; | |
5117ca91 GS |
635 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
636 | if (magic) { | |
fb73857a | 637 | if (SvSMAGICAL(tmpstr)) |
638 | mg_set(tmpstr); | |
5117ca91 GS |
639 | if (!didstore) |
640 | SvREFCNT_dec(tmpstr); | |
641 | } | |
bbce6d69 | 642 | TAINT_NOT; |
8e07c86e | 643 | } |
fb73857a | 644 | if (relem == lastrelem && dowarn) |
760ac839 | 645 | warn("Odd number of elements in hash list"); |
a0d0e21e LW |
646 | } |
647 | break; | |
648 | default: | |
649 | if (SvTHINKFIRST(sv)) { | |
650 | if (SvREADONLY(sv) && curcop != &compiling) { | |
651 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) | |
652 | DIE(no_modify); | |
653 | if (relem <= lastrelem) | |
654 | relem++; | |
655 | break; | |
656 | } | |
657 | if (SvROK(sv)) | |
658 | sv_unref(sv); | |
659 | } | |
660 | if (relem <= lastrelem) { | |
661 | sv_setsv(sv, *relem); | |
662 | *(relem++) = sv; | |
663 | } | |
664 | else | |
665 | sv_setsv(sv, &sv_undef); | |
666 | SvSETMAGIC(sv); | |
667 | break; | |
668 | } | |
669 | } | |
670 | if (delaymagic & ~DM_DELAY) { | |
671 | if (delaymagic & DM_UID) { | |
672 | #ifdef HAS_SETRESUID | |
673 | (void)setresuid(uid,euid,(Uid_t)-1); | |
56febc5e AD |
674 | #else |
675 | # ifdef HAS_SETREUID | |
a0d0e21e | 676 | (void)setreuid(uid,euid); |
56febc5e AD |
677 | # else |
678 | # ifdef HAS_SETRUID | |
a0d0e21e LW |
679 | if ((delaymagic & DM_UID) == DM_RUID) { |
680 | (void)setruid(uid); | |
748a9306 | 681 | delaymagic &= ~DM_RUID; |
a0d0e21e | 682 | } |
56febc5e AD |
683 | # endif /* HAS_SETRUID */ |
684 | # ifdef HAS_SETEUID | |
a0d0e21e LW |
685 | if ((delaymagic & DM_UID) == DM_EUID) { |
686 | (void)seteuid(uid); | |
748a9306 | 687 | delaymagic &= ~DM_EUID; |
a0d0e21e | 688 | } |
56febc5e | 689 | # endif /* HAS_SETEUID */ |
a0d0e21e LW |
690 | if (delaymagic & DM_UID) { |
691 | if (uid != euid) | |
692 | DIE("No setreuid available"); | |
693 | (void)setuid(uid); | |
694 | } | |
56febc5e AD |
695 | # endif /* HAS_SETREUID */ |
696 | #endif /* HAS_SETRESUID */ | |
a0d0e21e LW |
697 | uid = (int)getuid(); |
698 | euid = (int)geteuid(); | |
699 | } | |
700 | if (delaymagic & DM_GID) { | |
701 | #ifdef HAS_SETRESGID | |
702 | (void)setresgid(gid,egid,(Gid_t)-1); | |
56febc5e AD |
703 | #else |
704 | # ifdef HAS_SETREGID | |
a0d0e21e | 705 | (void)setregid(gid,egid); |
56febc5e AD |
706 | # else |
707 | # ifdef HAS_SETRGID | |
a0d0e21e LW |
708 | if ((delaymagic & DM_GID) == DM_RGID) { |
709 | (void)setrgid(gid); | |
748a9306 | 710 | delaymagic &= ~DM_RGID; |
a0d0e21e | 711 | } |
56febc5e AD |
712 | # endif /* HAS_SETRGID */ |
713 | # ifdef HAS_SETEGID | |
a0d0e21e LW |
714 | if ((delaymagic & DM_GID) == DM_EGID) { |
715 | (void)setegid(gid); | |
748a9306 | 716 | delaymagic &= ~DM_EGID; |
a0d0e21e | 717 | } |
56febc5e | 718 | # endif /* HAS_SETEGID */ |
a0d0e21e LW |
719 | if (delaymagic & DM_GID) { |
720 | if (gid != egid) | |
721 | DIE("No setregid available"); | |
722 | (void)setgid(gid); | |
723 | } | |
56febc5e AD |
724 | # endif /* HAS_SETREGID */ |
725 | #endif /* HAS_SETRESGID */ | |
a0d0e21e LW |
726 | gid = (int)getgid(); |
727 | egid = (int)getegid(); | |
728 | } | |
4633a7c4 | 729 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e LW |
730 | } |
731 | delaymagic = 0; | |
54310121 | 732 | |
733 | gimme = GIMME_V; | |
734 | if (gimme == G_VOID) | |
735 | SP = firstrelem - 1; | |
736 | else if (gimme == G_SCALAR) { | |
737 | dTARGET; | |
738 | SP = firstrelem; | |
739 | SETi(lastrelem - firstrelem + 1); | |
740 | } | |
741 | else { | |
a0d0e21e LW |
742 | if (ary || hash) |
743 | SP = lastrelem; | |
744 | else | |
745 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 746 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 747 | while (relem <= SP) |
0c8c7a05 | 748 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e | 749 | } |
54310121 | 750 | RETURN; |
a0d0e21e LW |
751 | } |
752 | ||
753 | PP(pp_match) | |
754 | { | |
4e35701f | 755 | djSP; dTARG; |
a0d0e21e LW |
756 | register PMOP *pm = cPMOP; |
757 | register char *t; | |
758 | register char *s; | |
759 | char *strend; | |
760 | I32 global; | |
761 | I32 safebase; | |
762 | char *truebase; | |
763 | register REGEXP *rx = pm->op_pmregexp; | |
764 | I32 gimme = GIMME; | |
765 | STRLEN len; | |
748a9306 | 766 | I32 minmatch = 0; |
4633a7c4 | 767 | I32 oldsave = savestack_ix; |
f86702cc | 768 | I32 update_minmatch = 1; |
c277df42 | 769 | SV *screamer; |
a0d0e21e LW |
770 | |
771 | if (op->op_flags & OPf_STACKED) | |
772 | TARG = POPs; | |
773 | else { | |
54b9620d | 774 | TARG = DEFSV; |
a0d0e21e LW |
775 | EXTEND(SP,1); |
776 | } | |
c277df42 | 777 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
778 | s = SvPV(TARG, len); |
779 | strend = s + len; | |
780 | if (!s) | |
781 | DIE("panic: do_match"); | |
9212bbba | 782 | TAINT_NOT; |
a0d0e21e LW |
783 | |
784 | if (pm->op_pmflags & PMf_USED) { | |
c277df42 | 785 | failure: |
a0d0e21e LW |
786 | if (gimme == G_ARRAY) |
787 | RETURN; | |
788 | RETPUSHNO; | |
789 | } | |
790 | ||
791 | if (!rx->prelen && curpm) { | |
792 | pm = curpm; | |
793 | rx = pm->op_pmregexp; | |
794 | } | |
c277df42 IZ |
795 | if (rx->minlen > len) goto failure; |
796 | ||
797 | screamer = ( (SvSCREAM(TARG) && rx->check_substr | |
798 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
799 | && SvVALID(rx->check_substr)) | |
800 | ? TARG : Nullsv); | |
a0d0e21e LW |
801 | truebase = t = s; |
802 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
803 | rx->startp[0] = 0; | |
804 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { | |
805 | MAGIC* mg = mg_find(TARG, 'g'); | |
748a9306 | 806 | if (mg && mg->mg_len >= 0) { |
a0d0e21e | 807 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 | 808 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 809 | update_minmatch = 0; |
748a9306 | 810 | } |
a0d0e21e LW |
811 | } |
812 | } | |
748a9306 LW |
813 | if (!rx->nparens && !global) |
814 | gimme = G_SCALAR; /* accidental array context? */ | |
137443ea | 815 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
816 | && !sawampersand); | |
c277df42 | 817 | safebase = safebase ? 0 : REXEC_COPY_STR ; |
a0d0e21e LW |
818 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
819 | SAVEINT(multiline); | |
820 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
821 | } | |
822 | ||
823 | play_it_again: | |
824 | if (global && rx->startp[0]) { | |
825 | t = s = rx->endp[0]; | |
51aa1f50 | 826 | if ((s + rx->minlen) > strend) |
a0d0e21e | 827 | goto nope; |
f86702cc | 828 | if (update_minmatch++) |
829 | minmatch = (s == rx->startp[0]); | |
a0d0e21e | 830 | } |
c277df42 IZ |
831 | if (rx->check_substr) { |
832 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
833 | if ( screamer ) { | |
834 | I32 p = -1; | |
835 | ||
836 | if (screamfirst[BmRARE(rx->check_substr)] < 0) | |
a0d0e21e | 837 | goto nope; |
c277df42 IZ |
838 | else if (!(s = screaminstr(TARG, rx->check_substr, |
839 | rx->check_offset_min, 0, &p, 0))) | |
a0d0e21e | 840 | goto nope; |
c277df42 IZ |
841 | else if ((rx->reganch & ROPT_CHECK_ALL) |
842 | && !sawampersand && !SvTAIL(rx->check_substr)) | |
a0d0e21e LW |
843 | goto yup; |
844 | } | |
c277df42 IZ |
845 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
846 | (unsigned char*)strend, | |
847 | rx->check_substr))) | |
a0d0e21e | 848 | goto nope; |
c277df42 | 849 | else if ((rx->reganch & ROPT_CHECK_ALL) && !sawampersand) |
a0d0e21e | 850 | goto yup; |
c277df42 IZ |
851 | if (s && rx->check_offset_max < t - s) { |
852 | ++BmUSEFUL(rx->check_substr); | |
853 | s -= rx->check_offset_max; | |
a0d0e21e LW |
854 | } |
855 | else | |
856 | s = t; | |
857 | } | |
c277df42 IZ |
858 | /* Now checkstring is fixed, i.e. at fixed offset from the |
859 | beginning of match, and the match is anchored at s. */ | |
860 | else if (!multiline) { /* Anchored near beginning of string. */ | |
861 | I32 slen; | |
862 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] | |
863 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
864 | && memNE(SvPVX(rx->check_substr), | |
865 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 866 | goto nope; |
a0d0e21e | 867 | } |
c277df42 IZ |
868 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
869 | && rx->check_substr == rx->float_substr) { | |
870 | SvREFCNT_dec(rx->check_substr); | |
871 | rx->check_substr = Nullsv; /* opt is being useless */ | |
872 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
873 | } |
874 | } | |
c277df42 IZ |
875 | if (regexec_flags(rx, s, strend, truebase, minmatch, |
876 | screamer, NULL, safebase)) | |
bbce6d69 | 877 | { |
a0d0e21e LW |
878 | curpm = pm; |
879 | if (pm->op_pmflags & PMf_ONCE) | |
880 | pm->op_pmflags |= PMf_USED; | |
881 | goto gotcha; | |
882 | } | |
883 | else | |
884 | goto ret_no; | |
885 | /*NOTREACHED*/ | |
886 | ||
887 | gotcha: | |
c277df42 | 888 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e LW |
889 | if (gimme == G_ARRAY) { |
890 | I32 iters, i, len; | |
891 | ||
892 | iters = rx->nparens; | |
893 | if (global && !iters) | |
894 | i = 1; | |
895 | else | |
896 | i = 0; | |
c277df42 | 897 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 898 | EXTEND(SP, iters + i); |
bbce6d69 | 899 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
900 | for (i = !i; i <= iters; i++) { |
901 | PUSHs(sv_newmortal()); | |
902 | /*SUPPRESS 560*/ | |
903 | if ((s = rx->startp[i]) && rx->endp[i] ) { | |
904 | len = rx->endp[i] - s; | |
905 | sv_setpvn(*SP, s, len); | |
906 | } | |
907 | } | |
908 | if (global) { | |
909 | truebase = rx->subbeg; | |
5f05dabc | 910 | strend = rx->subend; |
a0d0e21e LW |
911 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
912 | ++rx->endp[0]; | |
c277df42 | 913 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e LW |
914 | goto play_it_again; |
915 | } | |
4633a7c4 | 916 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
917 | RETURN; |
918 | } | |
919 | else { | |
920 | if (global) { | |
921 | MAGIC* mg = 0; | |
922 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
923 | mg = mg_find(TARG, 'g'); | |
924 | if (!mg) { | |
925 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
926 | mg = mg_find(TARG, 'g'); | |
927 | } | |
748a9306 | 928 | if (rx->startp[0]) { |
5f05dabc | 929 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 LW |
930 | if (rx->startp[0] == rx->endp[0]) |
931 | mg->mg_flags |= MGf_MINMATCH; | |
932 | else | |
933 | mg->mg_flags &= ~MGf_MINMATCH; | |
934 | } | |
a0d0e21e | 935 | } |
4633a7c4 | 936 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
937 | RETPUSHYES; |
938 | } | |
939 | ||
c277df42 IZ |
940 | yup: /* Confirmed by check_substr */ |
941 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
942 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
943 | curpm = pm; |
944 | if (pm->op_pmflags & PMf_ONCE) | |
945 | pm->op_pmflags |= PMf_USED; | |
5f05dabc | 946 | Safefree(rx->subbase); |
947 | rx->subbase = Nullch; | |
a0d0e21e LW |
948 | if (global) { |
949 | rx->subbeg = truebase; | |
950 | rx->subend = strend; | |
951 | rx->startp[0] = s; | |
c277df42 | 952 | rx->endp[0] = s + SvCUR(rx->check_substr); |
a0d0e21e LW |
953 | goto gotcha; |
954 | } | |
955 | if (sawampersand) { | |
956 | char *tmps; | |
957 | ||
a0d0e21e LW |
958 | tmps = rx->subbase = savepvn(t, strend-t); |
959 | rx->subbeg = tmps; | |
960 | rx->subend = tmps + (strend-t); | |
961 | tmps = rx->startp[0] = tmps + (s - t); | |
c277df42 | 962 | rx->endp[0] = tmps + SvCUR(rx->check_substr); |
a0d0e21e | 963 | } |
4633a7c4 | 964 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
965 | RETPUSHYES; |
966 | ||
967 | nope: | |
c277df42 IZ |
968 | if (rx->check_substr) |
969 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
970 | |
971 | ret_no: | |
c90c0ff4 | 972 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
973 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
974 | MAGIC* mg = mg_find(TARG, 'g'); | |
975 | if (mg) | |
976 | mg->mg_len = -1; | |
977 | } | |
978 | } | |
4633a7c4 | 979 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
980 | if (gimme == G_ARRAY) |
981 | RETURN; | |
982 | RETPUSHNO; | |
983 | } | |
984 | ||
985 | OP * | |
8ac85365 | 986 | do_readline(void) |
a0d0e21e LW |
987 | { |
988 | dSP; dTARGETSTACKED; | |
989 | register SV *sv; | |
990 | STRLEN tmplen = 0; | |
991 | STRLEN offset; | |
760ac839 | 992 | PerlIO *fp; |
a0d0e21e LW |
993 | register IO *io = GvIO(last_in_gv); |
994 | register I32 type = op->op_type; | |
54310121 | 995 | I32 gimme = GIMME_V; |
e79b0511 | 996 | MAGIC *mg; |
a0d0e21e | 997 | |
3049007d | 998 | if (SvRMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
e79b0511 | 999 | PUSHMARK(SP); |
1000 | XPUSHs(mg->mg_obj); | |
1001 | PUTBACK; | |
1002 | ENTER; | |
54310121 | 1003 | perl_call_method("READLINE", gimme); |
e79b0511 | 1004 | LEAVE; |
1005 | SPAGAIN; | |
54310121 | 1006 | if (gimme == G_SCALAR) |
1007 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1008 | RETURN; |
1009 | } | |
a0d0e21e LW |
1010 | fp = Nullfp; |
1011 | if (io) { | |
1012 | fp = IoIFP(io); | |
1013 | if (!fp) { | |
1014 | if (IoFLAGS(io) & IOf_ARGV) { | |
1015 | if (IoFLAGS(io) & IOf_START) { | |
1016 | IoFLAGS(io) &= ~IOf_START; | |
1017 | IoLINES(io) = 0; | |
1018 | if (av_len(GvAVn(last_in_gv)) < 0) { | |
1019 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ | |
1020 | av_push(GvAVn(last_in_gv), tmpstr); | |
1021 | } | |
1022 | } | |
1023 | fp = nextargv(last_in_gv); | |
1024 | if (!fp) { /* Note: fp != IoIFP(io) */ | |
1025 | (void)do_close(last_in_gv, FALSE); /* now it does*/ | |
1026 | IoFLAGS(io) |= IOf_START; | |
1027 | } | |
1028 | } | |
1029 | else if (type == OP_GLOB) { | |
1030 | SV *tmpcmd = NEWSV(55, 0); | |
1031 | SV *tmpglob = POPs; | |
1032 | ENTER; | |
1033 | SAVEFREESV(tmpcmd); | |
1034 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1035 | /* since spawning off a process is a real performance hit */ | |
1036 | { | |
1037 | #include <descrip.h> | |
1038 | #include <lib$routines.h> | |
1039 | #include <nam.h> | |
1040 | #include <rmsdef.h> | |
1041 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1042 | char vmsspec[NAM$C_MAXRSS+1]; | |
1043 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1044 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1045 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1046 | PerlIO *tmpfp; |
a0d0e21e LW |
1047 | STRLEN i; |
1048 | struct dsc$descriptor_s wilddsc | |
1049 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1050 | struct dsc$descriptor_vs rsdsc | |
1051 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1052 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1053 | ||
1054 | /* We could find out if there's an explicit dev/dir or version | |
1055 | by peeking into lib$find_file's internal context at | |
1056 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1057 | but that's unsupported, so I don't want to do it now and | |
1058 | have it bite someone in the future. */ | |
1059 | strcat(tmpfnam,tmpnam(NULL)); | |
1060 | cp = SvPV(tmpglob,i); | |
1061 | for (; i; i--) { | |
1062 | if (cp[i] == ';') hasver = 1; | |
1063 | if (cp[i] == '.') { | |
1064 | if (sts) hasver = 1; | |
1065 | else sts = 1; | |
1066 | } | |
1067 | if (cp[i] == '/') { | |
1068 | hasdir = isunix = 1; | |
1069 | break; | |
748a9306 | 1070 | } |
a0d0e21e LW |
1071 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1072 | hasdir = 1; | |
1073 | break; | |
1074 | } | |
1075 | } | |
760ac839 | 1076 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e LW |
1077 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1078 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); | |
1079 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1080 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1081 | end = rstr + (unsigned long int) *rslt; | |
1082 | if (!hasver) while (*end != ';') end--; | |
1083 | *(end++) = '\n'; *end = '\0'; | |
1084 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1085 | if (hasdir) { | |
f86702cc | 1086 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1087 | begin = rstr; |
1088 | } | |
1089 | else { | |
1090 | begin = end; | |
1091 | while (*(--begin) != ']' && *begin != '>') ; | |
1092 | ++begin; | |
1093 | } | |
760ac839 | 1094 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1095 | } |
1096 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1097 | if (ok && sts != RMS$_NMF && |
1098 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1099 | if (!ok) { |
c07a80fd | 1100 | if (!(sts & 1)) { |
1101 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1102 | } | |
760ac839 | 1103 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1104 | fp = NULL; |
1105 | } | |
1106 | else { | |
760ac839 | 1107 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1108 | IoTYPE(io) = '<'; |
1109 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1110 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1111 | } |
1112 | } | |
1113 | } | |
1114 | #else /* !VMS */ | |
1115 | #ifdef DOSISH | |
67955e0c | 1116 | #ifdef OS2 |
1117 | sv_setpv(tmpcmd, "for a in "); | |
1118 | sv_catsv(tmpcmd, tmpglob); | |
1119 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1120 | #else | |
39e571d4 LM |
1121 | #ifdef DJGPP |
1122 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1123 | sv_catsv(tmpcmd, tmpglob); | |
1124 | #else | |
a0d0e21e LW |
1125 | sv_setpv(tmpcmd, "perlglob "); |
1126 | sv_catsv(tmpcmd, tmpglob); | |
1127 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1128 | #endif /* !DJGPP */ |
67955e0c | 1129 | #endif /* !OS2 */ |
1130 | #else /* !DOSISH */ | |
1131 | #if defined(CSH) | |
a0d0e21e LW |
1132 | sv_setpvn(tmpcmd, cshname, cshlen); |
1133 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
1134 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1135 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1136 | #else |
1137 | sv_setpv(tmpcmd, "echo "); | |
1138 | sv_catsv(tmpcmd, tmpglob); | |
1139 | #if 'z' - 'a' == 25 | |
1140 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1141 | #else | |
1142 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1143 | #endif | |
1144 | #endif /* !CSH */ | |
67955e0c | 1145 | #endif /* !DOSISH */ |
c07a80fd | 1146 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1147 | FALSE, 0, 0, Nullfp); | |
a0d0e21e LW |
1148 | fp = IoIFP(io); |
1149 | #endif /* !VMS */ | |
1150 | LEAVE; | |
1151 | } | |
1152 | } | |
1153 | else if (type == OP_GLOB) | |
1154 | SP--; | |
1155 | } | |
1156 | if (!fp) { | |
4633a7c4 | 1157 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e | 1158 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 | 1159 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1160 | (void)SvOK_off(TARG); |
1161 | PUSHTARG; | |
1162 | } | |
1163 | RETURN; | |
1164 | } | |
54310121 | 1165 | if (gimme == G_SCALAR) { |
a0d0e21e | 1166 | sv = TARG; |
9607fc9c | 1167 | if (SvROK(sv)) |
1168 | sv_unref(sv); | |
a0d0e21e LW |
1169 | (void)SvUPGRADE(sv, SVt_PV); |
1170 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1171 | if (!tmplen) | |
1172 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1173 | if (type == OP_RCATLINE) | |
1174 | offset = SvCUR(sv); | |
1175 | else | |
1176 | offset = 0; | |
1177 | } | |
54310121 | 1178 | else { |
1179 | sv = sv_2mortal(NEWSV(57, 80)); | |
1180 | offset = 0; | |
1181 | } | |
a0d0e21e LW |
1182 | for (;;) { |
1183 | if (!sv_gets(sv, fp, offset)) { | |
760ac839 | 1184 | PerlIO_clearerr(fp); |
a0d0e21e LW |
1185 | if (IoFLAGS(io) & IOf_ARGV) { |
1186 | fp = nextargv(last_in_gv); | |
1187 | if (fp) | |
1188 | continue; | |
1189 | (void)do_close(last_in_gv, FALSE); | |
1190 | IoFLAGS(io) |= IOf_START; | |
1191 | } | |
1192 | else if (type == OP_GLOB) { | |
5cd24f17 | 1193 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1194 | warn("internal error: glob failed"); | |
a0d0e21e | 1195 | } |
54310121 | 1196 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1197 | (void)SvOK_off(TARG); |
1198 | PUSHTARG; | |
1199 | } | |
1200 | RETURN; | |
1201 | } | |
bbce6d69 | 1202 | /* This should not be marked tainted if the fp is marked clean */ |
1203 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1204 | TAINT; | |
1205 | SvTAINTED_on(sv); | |
1206 | } | |
a0d0e21e | 1207 | IoLINES(io)++; |
71be2cbc | 1208 | SvSETMAGIC(sv); |
a0d0e21e | 1209 | XPUSHs(sv); |
a0d0e21e LW |
1210 | if (type == OP_GLOB) { |
1211 | char *tmps; | |
1212 | ||
c07a80fd | 1213 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1214 | tmps = SvEND(sv) - 1; | |
1215 | if (*tmps == *SvPVX(rs)) { | |
1216 | *tmps = '\0'; | |
1217 | SvCUR(sv)--; | |
1218 | } | |
1219 | } | |
a0d0e21e LW |
1220 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1221 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1222 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1223 | break; | |
1224 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { | |
1225 | (void)POPs; /* Unmatched wildcard? Chuck it... */ | |
1226 | continue; | |
1227 | } | |
1228 | } | |
54310121 | 1229 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1230 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1231 | SvLEN_set(sv, SvCUR(sv)+1); | |
1232 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1233 | } | |
1234 | sv = sv_2mortal(NEWSV(58, 80)); | |
1235 | continue; | |
1236 | } | |
54310121 | 1237 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1238 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1239 | if (SvCUR(sv) < 60) | |
1240 | SvLEN_set(sv, 80); | |
1241 | else | |
1242 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1243 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1244 | } | |
1245 | RETURN; | |
1246 | } | |
1247 | } | |
1248 | ||
1249 | PP(pp_enter) | |
1250 | { | |
4e35701f | 1251 | djSP; |
c09156bb | 1252 | register PERL_CONTEXT *cx; |
54310121 | 1253 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e | 1254 | |
54310121 | 1255 | if (gimme == -1) { |
1256 | if (cxstack_ix >= 0) | |
1257 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1258 | else | |
1259 | gimme = G_SCALAR; | |
1260 | } | |
a0d0e21e LW |
1261 | |
1262 | ENTER; | |
1263 | ||
1264 | SAVETMPS; | |
1265 | PUSHBLOCK(cx, CXt_BLOCK, sp); | |
1266 | ||
1267 | RETURN; | |
1268 | } | |
1269 | ||
1270 | PP(pp_helem) | |
1271 | { | |
4e35701f | 1272 | djSP; |
760ac839 | 1273 | HE* he; |
ae77835f | 1274 | SV **svp; |
a0d0e21e | 1275 | SV *keysv = POPs; |
a0d0e21e | 1276 | HV *hv = (HV*)POPs; |
68dc0745 | 1277 | U32 lval = op->op_flags & OPf_MOD; |
1278 | U32 defer = op->op_private & OPpLVAL_DEFER; | |
a0d0e21e | 1279 | |
ae77835f MB |
1280 | if (SvTYPE(hv) == SVt_PVHV) { |
1281 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1282 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1283 | } |
1284 | else if (SvTYPE(hv) == SVt_PVAV) { | |
97fcbf96 | 1285 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1286 | } |
c750a3ec | 1287 | else { |
a0d0e21e | 1288 | RETPUSHUNDEF; |
c750a3ec | 1289 | } |
a0d0e21e | 1290 | if (lval) { |
97fcbf96 | 1291 | if (!svp || *svp == &sv_undef) { |
68dc0745 | 1292 | SV* lv; |
1293 | SV* key2; | |
1294 | if (!defer) | |
1295 | DIE(no_helem, SvPV(keysv, na)); | |
1296 | lv = sv_newmortal(); | |
1297 | sv_upgrade(lv, SVt_PVLV); | |
1298 | LvTYPE(lv) = 'y'; | |
1299 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1300 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1301 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1302 | LvTARGLEN(lv) = 1; | |
1303 | PUSHs(lv); | |
1304 | RETURN; | |
1305 | } | |
5f05dabc | 1306 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f MB |
1307 | if (HvNAME(hv) && isGV(*svp)) |
1308 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); | |
5f05dabc | 1309 | else |
ae77835f | 1310 | save_svref(svp); |
5f05dabc | 1311 | } |
1312 | else if (op->op_private & OPpDEREF) | |
ae77835f | 1313 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e LW |
1314 | } |
1315 | PUSHs(svp ? *svp : &sv_undef); | |
1316 | RETURN; | |
1317 | } | |
1318 | ||
1319 | PP(pp_leave) | |
1320 | { | |
4e35701f | 1321 | djSP; |
c09156bb | 1322 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1323 | register SV **mark; |
1324 | SV **newsp; | |
1325 | PMOP *newpm; | |
1326 | I32 gimme; | |
1327 | ||
1328 | if (op->op_flags & OPf_SPECIAL) { | |
1329 | cx = &cxstack[cxstack_ix]; | |
1330 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ | |
1331 | } | |
1332 | ||
1333 | POPBLOCK(cx,newpm); | |
1334 | ||
54310121 | 1335 | gimme = OP_GIMME(op, -1); |
1336 | if (gimme == -1) { | |
1337 | if (cxstack_ix >= 0) | |
1338 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1339 | else | |
1340 | gimme = G_SCALAR; | |
1341 | } | |
a0d0e21e | 1342 | |
a1f49e72 | 1343 | TAINT_NOT; |
54310121 | 1344 | if (gimme == G_VOID) |
1345 | SP = newsp; | |
1346 | else if (gimme == G_SCALAR) { | |
1347 | MARK = newsp + 1; | |
1348 | if (MARK <= SP) | |
1349 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1350 | *MARK = TOPs; | |
1351 | else | |
1352 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1353 | else { |
54310121 | 1354 | MEXTEND(mark,0); |
1355 | *MARK = &sv_undef; | |
a0d0e21e | 1356 | } |
54310121 | 1357 | SP = MARK; |
a0d0e21e | 1358 | } |
54310121 | 1359 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1360 | /* in case LEAVE wipes old return values */ |
1361 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1362 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1363 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1364 | TAINT_NOT; /* Each item is independent */ |
1365 | } | |
1366 | } | |
a0d0e21e LW |
1367 | } |
1368 | curpm = newpm; /* Don't pop $1 et al till now */ | |
1369 | ||
1370 | LEAVE; | |
1371 | ||
1372 | RETURN; | |
1373 | } | |
1374 | ||
1375 | PP(pp_iter) | |
1376 | { | |
4e35701f | 1377 | djSP; |
c09156bb | 1378 | register PERL_CONTEXT *cx; |
5f05dabc | 1379 | SV* sv; |
4633a7c4 | 1380 | AV* av; |
a0d0e21e LW |
1381 | |
1382 | EXTEND(sp, 1); | |
1383 | cx = &cxstack[cxstack_ix]; | |
1384 | if (cx->cx_type != CXt_LOOP) | |
1385 | DIE("panic: pp_iter"); | |
1386 | ||
4633a7c4 | 1387 | av = cx->blk_loop.iterary; |
71be2cbc | 1388 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1389 | RETPUSHNO; |
a0d0e21e | 1390 | |
7a4c00b4 | 1391 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1392 | |
93965878 NIS |
1393 | if (sv = (SvMAGICAL(av)) |
1394 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1395 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1396 | SvTEMP_off(sv); |
a0d0e21e | 1397 | else |
5f05dabc | 1398 | sv = &sv_undef; |
1399 | if (av != curstack && SvIMMORTAL(sv)) { | |
1400 | SV *lv = cx->blk_loop.iterlval; | |
71be2cbc | 1401 | if (lv && SvREFCNT(lv) > 1) { |
1402 | SvREFCNT_dec(lv); | |
1403 | lv = Nullsv; | |
1404 | } | |
5f05dabc | 1405 | if (lv) |
1406 | SvREFCNT_dec(LvTARG(lv)); | |
1407 | else { | |
68dc0745 | 1408 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1409 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1410 | LvTYPE(lv) = 'y'; |
68dc0745 | 1411 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1412 | } |
1413 | LvTARG(lv) = SvREFCNT_inc(av); | |
1414 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1415 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1416 | sv = (SV*)lv; |
1417 | } | |
a0d0e21e | 1418 | |
7a4c00b4 | 1419 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1420 | RETPUSHYES; |
1421 | } | |
1422 | ||
1423 | PP(pp_subst) | |
1424 | { | |
4e35701f | 1425 | djSP; dTARG; |
a0d0e21e LW |
1426 | register PMOP *pm = cPMOP; |
1427 | PMOP *rpm = pm; | |
1428 | register SV *dstr; | |
1429 | register char *s; | |
1430 | char *strend; | |
1431 | register char *m; | |
1432 | char *c; | |
1433 | register char *d; | |
1434 | STRLEN clen; | |
1435 | I32 iters = 0; | |
1436 | I32 maxiters; | |
1437 | register I32 i; | |
1438 | bool once; | |
71be2cbc | 1439 | bool rxtainted; |
a0d0e21e LW |
1440 | char *orig; |
1441 | I32 safebase; | |
1442 | register REGEXP *rx = pm->op_pmregexp; | |
1443 | STRLEN len; | |
1444 | int force_on_match = 0; | |
4633a7c4 | 1445 | I32 oldsave = savestack_ix; |
c277df42 IZ |
1446 | I32 update_minmatch = 1; |
1447 | SV *screamer; | |
a0d0e21e | 1448 | |
5cd24f17 | 1449 | /* known replacement string? */ |
1450 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
a0d0e21e LW |
1451 | if (op->op_flags & OPf_STACKED) |
1452 | TARG = POPs; | |
1453 | else { | |
54b9620d | 1454 | TARG = DEFSV; |
a0d0e21e LW |
1455 | EXTEND(SP,1); |
1456 | } | |
68dc0745 | 1457 | if (SvREADONLY(TARG) |
1458 | || (SvTYPE(TARG) > SVt_PVLV | |
1459 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
1460 | croak(no_modify); | |
a0d0e21e | 1461 | s = SvPV(TARG, len); |
68dc0745 | 1462 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1463 | force_on_match = 1; |
9212bbba | 1464 | TAINT_NOT; |
a0d0e21e LW |
1465 | |
1466 | force_it: | |
1467 | if (!pm || !s) | |
1468 | DIE("panic: do_subst"); | |
1469 | ||
1470 | strend = s + len; | |
1471 | maxiters = (strend - s) + 10; | |
1472 | ||
1473 | if (!rx->prelen && curpm) { | |
1474 | pm = curpm; | |
1475 | rx = pm->op_pmregexp; | |
1476 | } | |
c277df42 IZ |
1477 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1478 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1479 | && SvVALID(rx->check_substr)) | |
1480 | ? TARG : Nullsv); | |
1481 | safebase = (!rx->nparens && !sawampersand) ? 0 : REXEC_COPY_STR; | |
a0d0e21e LW |
1482 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1483 | SAVEINT(multiline); | |
1484 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
1485 | } | |
1486 | orig = m = s; | |
c277df42 IZ |
1487 | if (rx->check_substr) { |
1488 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
1489 | if (screamer) { | |
1490 | I32 p = -1; | |
1491 | ||
1492 | if (screamfirst[BmRARE(rx->check_substr)] < 0) | |
a0d0e21e | 1493 | goto nope; |
c277df42 | 1494 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e LW |
1495 | goto nope; |
1496 | } | |
c277df42 IZ |
1497 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
1498 | (unsigned char*)strend, | |
1499 | rx->check_substr))) | |
a0d0e21e | 1500 | goto nope; |
c277df42 IZ |
1501 | if (s && rx->check_offset_max < s - m) { |
1502 | ++BmUSEFUL(rx->check_substr); | |
1503 | s -= rx->check_offset_max; | |
a0d0e21e LW |
1504 | } |
1505 | else | |
1506 | s = m; | |
1507 | } | |
c277df42 IZ |
1508 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1509 | beginning of match, and the match is anchored at s. */ | |
1510 | else if (!multiline) { /* Anchored at beginning of string. */ | |
1511 | I32 slen; | |
1512 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] | |
1513 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
1514 | && memNE(SvPVX(rx->check_substr), | |
1515 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 1516 | goto nope; |
a0d0e21e | 1517 | } |
c277df42 IZ |
1518 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1519 | && rx->check_substr == rx->float_substr) { | |
1520 | SvREFCNT_dec(rx->check_substr); | |
1521 | rx->check_substr = Nullsv; /* opt is being useless */ | |
1522 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
1523 | } |
1524 | } | |
71be2cbc | 1525 | |
1526 | /* only replace once? */ | |
a0d0e21e | 1527 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1528 | |
1529 | /* known replacement string? */ | |
5cd24f17 | 1530 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1531 | |
1532 | /* can do inplace substitution? */ | |
c277df42 IZ |
1533 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1534 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { | |
1535 | if (!regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) { | |
71be2cbc | 1536 | PUSHs(&sv_no); |
1537 | LEAVE_SCOPE(oldsave); | |
1538 | RETURN; | |
1539 | } | |
1540 | if (force_on_match) { | |
1541 | force_on_match = 0; | |
1542 | s = SvPV_force(TARG, len); | |
1543 | goto force_it; | |
1544 | } | |
71be2cbc | 1545 | d = s; |
1546 | curpm = pm; | |
1547 | SvSCREAM_off(TARG); /* disable possible screamer */ | |
1548 | if (once) { | |
c277df42 IZ |
1549 | rxtainted = RX_MATCH_TAINTED(rx); |
1550 | if (rx->subbase) { | |
1551 | m = orig + (rx->startp[0] - rx->subbase); | |
1552 | d = orig + (rx->endp[0] - rx->subbase); | |
1553 | } else { | |
1554 | m = rx->startp[0]; | |
1555 | d = rx->endp[0]; | |
1556 | } | |
71be2cbc | 1557 | s = orig; |
1558 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1559 | if (clen) { | |
1560 | Copy(c, m, clen, char); | |
1561 | m += clen; | |
a0d0e21e | 1562 | } |
71be2cbc | 1563 | i = strend - d; |
1564 | if (i > 0) { | |
1565 | Move(d, m, i, char); | |
1566 | m += i; | |
a0d0e21e | 1567 | } |
71be2cbc | 1568 | *m = '\0'; |
1569 | SvCUR_set(TARG, m - s); | |
1570 | } | |
1571 | /*SUPPRESS 560*/ | |
1572 | else if (i = m - s) { /* faster from front */ | |
1573 | d -= clen; | |
1574 | m = d; | |
1575 | sv_chop(TARG, d-i); | |
1576 | s += i; | |
1577 | while (i--) | |
1578 | *--d = *--s; | |
1579 | if (clen) | |
1580 | Copy(c, m, clen, char); | |
1581 | } | |
1582 | else if (clen) { | |
1583 | d -= clen; | |
1584 | sv_chop(TARG, d); | |
1585 | Copy(c, d, clen, char); | |
1586 | } | |
1587 | else { | |
1588 | sv_chop(TARG, d); | |
1589 | } | |
9212bbba | 1590 | TAINT_IF(rxtainted); |
71be2cbc | 1591 | PUSHs(&sv_yes); |
1592 | } | |
1593 | else { | |
1594 | rxtainted = 0; | |
1595 | do { | |
1596 | if (iters++ > maxiters) | |
1597 | DIE("Substitution loop"); | |
c277df42 | 1598 | rxtainted |= RX_MATCH_TAINTED(rx); |
71be2cbc | 1599 | m = rx->startp[0]; |
1600 | /*SUPPRESS 560*/ | |
1601 | if (i = m - s) { | |
1602 | if (s != d) | |
1603 | Move(s, d, i, char); | |
1604 | d += i; | |
a0d0e21e | 1605 | } |
71be2cbc | 1606 | if (clen) { |
1607 | Copy(c, d, clen, char); | |
1608 | d += clen; | |
1609 | } | |
1610 | s = rx->endp[0]; | |
c277df42 IZ |
1611 | } while (regexec_flags(rx, s, strend, orig, s == m, |
1612 | Nullsv, NULL, 0)); /* don't match same null twice */ | |
71be2cbc | 1613 | if (s != d) { |
1614 | i = strend - s; | |
1615 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1616 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1617 | } |
9212bbba | 1618 | TAINT_IF(rxtainted); |
71be2cbc | 1619 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1620 | } |
71be2cbc | 1621 | (void)SvPOK_only(TARG); |
1622 | SvSETMAGIC(TARG); | |
9212bbba | 1623 | SvTAINT(TARG); |
71be2cbc | 1624 | LEAVE_SCOPE(oldsave); |
1625 | RETURN; | |
a0d0e21e | 1626 | } |
71be2cbc | 1627 | |
c277df42 | 1628 | if (regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e LW |
1629 | if (force_on_match) { |
1630 | force_on_match = 0; | |
1631 | s = SvPV_force(TARG, len); | |
1632 | goto force_it; | |
1633 | } | |
c277df42 | 1634 | rxtainted = RX_MATCH_TAINTED(rx); |
a0d0e21e LW |
1635 | dstr = NEWSV(25, sv_len(TARG)); |
1636 | sv_setpvn(dstr, m, s-m); | |
1637 | curpm = pm; | |
1638 | if (!c) { | |
c09156bb | 1639 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1640 | PUSHSUBST(cx); |
1641 | RETURNOP(cPMOP->op_pmreplroot); | |
1642 | } | |
1643 | do { | |
1644 | if (iters++ > maxiters) | |
1645 | DIE("Substitution loop"); | |
c277df42 | 1646 | rxtainted |= RX_MATCH_TAINTED(rx); |
a0d0e21e LW |
1647 | if (rx->subbase && rx->subbase != orig) { |
1648 | m = s; | |
1649 | s = orig; | |
1650 | orig = rx->subbase; | |
1651 | s = orig + (m - s); | |
1652 | strend = s + (strend - m); | |
1653 | } | |
1654 | m = rx->startp[0]; | |
1655 | sv_catpvn(dstr, s, m-s); | |
1656 | s = rx->endp[0]; | |
1657 | if (clen) | |
1658 | sv_catpvn(dstr, c, clen); | |
1659 | if (once) | |
1660 | break; | |
c277df42 | 1661 | } while (regexec_flags(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e | 1662 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1663 | |
9212bbba CS |
1664 | TAINT_IF(rxtainted); |
1665 | ||
4633a7c4 | 1666 | (void)SvOOK_off(TARG); |
cb0b1708 | 1667 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1668 | SvPVX(TARG) = SvPVX(dstr); |
1669 | SvCUR_set(TARG, SvCUR(dstr)); | |
1670 | SvLEN_set(TARG, SvLEN(dstr)); | |
1671 | SvPVX(dstr) = 0; | |
1672 | sv_free(dstr); | |
1673 | ||
a0d0e21e LW |
1674 | (void)SvPOK_only(TARG); |
1675 | SvSETMAGIC(TARG); | |
9212bbba | 1676 | SvTAINT(TARG); |
a0d0e21e | 1677 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 | 1678 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1679 | RETURN; |
1680 | } | |
5cd24f17 | 1681 | goto ret_no; |
a0d0e21e LW |
1682 | |
1683 | nope: | |
c277df42 | 1684 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1685 | |
1686 | ret_no: | |
a0d0e21e | 1687 | PUSHs(&sv_no); |
4633a7c4 | 1688 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1689 | RETURN; |
1690 | } | |
1691 | ||
1692 | PP(pp_grepwhile) | |
1693 | { | |
4e35701f | 1694 | djSP; |
a0d0e21e LW |
1695 | |
1696 | if (SvTRUEx(POPs)) | |
1697 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; | |
1698 | ++*markstack_ptr; | |
1699 | LEAVE; /* exit inner scope */ | |
1700 | ||
1701 | /* All done yet? */ | |
1702 | if (stack_base + *markstack_ptr > sp) { | |
1703 | I32 items; | |
54310121 | 1704 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1705 | |
1706 | LEAVE; /* exit outer scope */ | |
1707 | (void)POPMARK; /* pop src */ | |
1708 | items = --*markstack_ptr - markstack_ptr[-1]; | |
1709 | (void)POPMARK; /* pop dst */ | |
1710 | SP = stack_base + POPMARK; /* pop original mark */ | |
54310121 | 1711 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1712 | dTARGET; |
1713 | XPUSHi(items); | |
a0d0e21e | 1714 | } |
54310121 | 1715 | else if (gimme == G_ARRAY) |
1716 | SP += items; | |
a0d0e21e LW |
1717 | RETURN; |
1718 | } | |
1719 | else { | |
1720 | SV *src; | |
1721 | ||
1722 | ENTER; /* enter inner scope */ | |
1723 | SAVESPTR(curpm); | |
1724 | ||
1725 | src = stack_base[*markstack_ptr]; | |
1726 | SvTEMP_off(src); | |
54b9620d | 1727 | DEFSV = src; |
a0d0e21e LW |
1728 | |
1729 | RETURNOP(cLOGOP->op_other); | |
1730 | } | |
1731 | } | |
1732 | ||
1733 | PP(pp_leavesub) | |
1734 | { | |
4e35701f | 1735 | djSP; |
a0d0e21e LW |
1736 | SV **mark; |
1737 | SV **newsp; | |
1738 | PMOP *newpm; | |
1739 | I32 gimme; | |
c09156bb | 1740 | register PERL_CONTEXT *cx; |
f86702cc | 1741 | struct block_sub cxsub; |
a0d0e21e LW |
1742 | |
1743 | POPBLOCK(cx,newpm); | |
f86702cc | 1744 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1745 | ||
a1f49e72 | 1746 | TAINT_NOT; |
a0d0e21e LW |
1747 | if (gimme == G_SCALAR) { |
1748 | MARK = newsp + 1; | |
1749 | if (MARK <= SP) | |
f86702cc | 1750 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e | 1751 | else { |
f86702cc | 1752 | MEXTEND(MARK, 0); |
a0d0e21e LW |
1753 | *MARK = &sv_undef; |
1754 | } | |
1755 | SP = MARK; | |
1756 | } | |
54310121 | 1757 | else if (gimme == G_ARRAY) { |
f86702cc | 1758 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1759 | if (!SvTEMP(*MARK)) { |
f86702cc | 1760 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1761 | TAINT_NOT; /* Each item is independent */ |
1762 | } | |
f86702cc | 1763 | } |
a0d0e21e | 1764 | } |
f86702cc | 1765 | PUTBACK; |
1766 | ||
1767 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
1768 | curpm = newpm; /* ... and pop $1 et al */ | |
a0d0e21e LW |
1769 | |
1770 | LEAVE; | |
a0d0e21e LW |
1771 | return pop_return(); |
1772 | } | |
1773 | ||
3de9ffa1 | 1774 | static CV * |
8ac85365 | 1775 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1776 | { |
1777 | dTHR; | |
4f01c5a5 | 1778 | SV *oldsv = *svp; |
3de9ffa1 | 1779 | GV *gv; |
3de9ffa1 | 1780 | |
4f01c5a5 MB |
1781 | *svp = GvSV(DBsub); |
1782 | save_item(*svp); | |
3de9ffa1 MB |
1783 | gv = CvGV(cv); |
1784 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1785 | || strEQ(GvNAME(gv), "END") | |
1786 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1787 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) | |
1788 | && (gv = (GV*)oldsv) ))) { | |
1789 | /* Use GV from the stack as a fallback. */ | |
1790 | /* GV is potentially non-unique, or contain different CV. */ | |
4f01c5a5 | 1791 | sv_setsv(*svp, newRV((SV*)cv)); |
3de9ffa1 MB |
1792 | } |
1793 | else { | |
4f01c5a5 | 1794 | gv_efullname3(*svp, gv, Nullch); |
3de9ffa1 MB |
1795 | } |
1796 | cv = GvCV(DBsub); | |
1797 | if (CvXSUB(cv)) | |
1798 | curcopdb = curcop; | |
1799 | return cv; | |
1800 | } | |
1801 | ||
a0d0e21e LW |
1802 | PP(pp_entersub) |
1803 | { | |
4e35701f | 1804 | djSP; dPOPss; |
a0d0e21e LW |
1805 | GV *gv; |
1806 | HV *stash; | |
1807 | register CV *cv; | |
c09156bb | 1808 | register PERL_CONTEXT *cx; |
5d94fbed | 1809 | I32 gimme; |
07055b4c | 1810 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
1811 | |
1812 | if (!sv) | |
1813 | DIE("Not a CODE reference"); | |
1814 | switch (SvTYPE(sv)) { | |
1815 | default: | |
1816 | if (!SvROK(sv)) { | |
748a9306 LW |
1817 | char *sym; |
1818 | ||
fb73857a | 1819 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1820 | if (hasargs) | |
1821 | SP = stack_base + POPMARK; | |
a0d0e21e | 1822 | RETURN; |
fb73857a | 1823 | } |
15ff848f CS |
1824 | if (SvGMAGICAL(sv)) { |
1825 | mg_get(sv); | |
1826 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
1827 | } | |
1828 | else | |
1829 | sym = SvPV(sv, na); | |
1830 | if (!sym) | |
a0d0e21e LW |
1831 | DIE(no_usym, "a subroutine"); |
1832 | if (op->op_private & HINT_STRICT_REFS) | |
748a9306 LW |
1833 | DIE(no_symref, sym, "a subroutine"); |
1834 | cv = perl_get_cv(sym, TRUE); | |
a0d0e21e LW |
1835 | break; |
1836 | } | |
1837 | cv = (CV*)SvRV(sv); | |
1838 | if (SvTYPE(cv) == SVt_PVCV) | |
1839 | break; | |
1840 | /* FALL THROUGH */ | |
1841 | case SVt_PVHV: | |
1842 | case SVt_PVAV: | |
1843 | DIE("Not a CODE reference"); | |
1844 | case SVt_PVCV: | |
1845 | cv = (CV*)sv; | |
1846 | break; | |
1847 | case SVt_PVGV: | |
8ebc5c01 | 1848 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e LW |
1849 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1850 | break; | |
1851 | } | |
1852 | ||
1853 | ENTER; | |
1854 | SAVETMPS; | |
1855 | ||
1856 | retry: | |
1857 | if (!cv) | |
1858 | DIE("Not a CODE reference"); | |
1859 | ||
1860 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
44a8e56a | 1861 | GV* autogv; |
22239a37 | 1862 | SV* sub_name; |
44a8e56a | 1863 | |
1864 | /* anonymous or undef'd function leaves us no recourse */ | |
1865 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
1866 | DIE("Undefined subroutine called"); | |
1867 | /* autoloaded stub? */ | |
1868 | if (cv != GvCV(gv)) { | |
1869 | cv = GvCV(gv); | |
1870 | goto retry; | |
a0d0e21e | 1871 | } |
44a8e56a | 1872 | /* should call AUTOLOAD now? */ |
54310121 | 1873 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1874 | FALSE))) | |
1875 | { | |
44a8e56a | 1876 | cv = GvCV(autogv); |
1877 | goto retry; | |
a0d0e21e | 1878 | } |
44a8e56a | 1879 | /* sorry */ |
22239a37 NIS |
1880 | sub_name = sv_newmortal(); |
1881 | gv_efullname3(sub_name, gv, Nullch); | |
1882 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
a0d0e21e LW |
1883 | } |
1884 | ||
54310121 | 1885 | gimme = GIMME_V; |
3de9ffa1 | 1886 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 | 1887 | cv = get_db_sub(&sv, cv); |
3de9ffa1 MB |
1888 | if (!cv) |
1889 | DIE("No DBsub routine"); | |
a0d0e21e | 1890 | |
11343788 | 1891 | #ifdef USE_THREADS |
3de9ffa1 MB |
1892 | /* |
1893 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
1894 | * If so, we gain a lock on the CV, the first argument or the |
1895 | * stash (for static methods), as appropriate. This has to be | |
1896 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
1897 | * reschedule by returning a new op. | |
3de9ffa1 | 1898 | */ |
11343788 | 1899 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
1900 | if (CvFLAGS(cv) & CVf_LOCKED) { |
1901 | MAGIC *mg; | |
1902 | if (CvFLAGS(cv) & CVf_METHOD) { | |
1903 | if (SP > stack_base + TOPMARK) | |
1904 | sv = *(stack_base + TOPMARK + 1); | |
1905 | else { | |
1906 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1907 | croak("no argument for locked method call"); | |
1908 | } | |
1909 | if (SvROK(sv)) | |
1910 | sv = SvRV(sv); | |
458fb581 MB |
1911 | else { |
1912 | STRLEN len; | |
1913 | char *stashname = SvPV(sv, len); | |
1914 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
1915 | } | |
77a005ab MB |
1916 | } |
1917 | else { | |
1918 | sv = (SV*)cv; | |
1919 | } | |
1920 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1921 | mg = condpair_magic(sv); | |
1922 | MUTEX_LOCK(MgMUTEXP(mg)); | |
1923 | if (MgOWNER(mg) == thr) | |
1924 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
1925 | else { | |
1926 | while (MgOWNER(mg)) | |
1927 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
1928 | MgOWNER(mg) = thr; | |
1fd28e87 MB |
1929 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1930 | thr, sv);) | |
77a005ab | 1931 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e | 1932 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab | 1933 | save_destructor(unlock_condpair, sv); |
11343788 | 1934 | } |
77a005ab | 1935 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 1936 | } |
3de9ffa1 MB |
1937 | /* |
1938 | * Now we have permission to enter the sub, we must distinguish | |
1939 | * four cases. (0) It's an XSUB (in which case we don't care | |
1940 | * about ownership); (1) it's ours already (and we're recursing); | |
1941 | * (2) it's free (but we may already be using a cached clone); | |
1942 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
1943 | * Case (2) means we look for a clone--if we have one, use it | |
1944 | * otherwise grab ownership of cv. Case (3) means we look for a | |
1945 | * clone (for non-XSUBs) and have to create one if we don't | |
1946 | * already have one. | |
1947 | * Why look for a clone in case (2) when we could just grab | |
1948 | * ownership of cv straight away? Well, we could be recursing, | |
1949 | * i.e. we originally tried to enter cv while another thread | |
1950 | * owned it (hence we used a clone) but it has been freed up | |
1951 | * and we're now recursing into it. It may or may not be "better" | |
1952 | * to use the clone but at least CvDEPTH can be trusted. | |
1953 | */ | |
1954 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
1955 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 1956 | else { |
3de9ffa1 MB |
1957 | /* Case (2) or (3) */ |
1958 | SV **svp; | |
1959 | ||
11343788 | 1960 | /* |
3de9ffa1 MB |
1961 | * XXX Might it be better to release CvMUTEXP(cv) while we |
1962 | * do the hv_fetch? We might find someone has pinched it | |
1963 | * when we look again, in which case we would be in case | |
1964 | * (3) instead of (2) so we'd have to clone. Would the fact | |
1965 | * that we released the mutex more quickly make up for this? | |
1966 | */ | |
199100c8 | 1967 | svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE); |
3de9ffa1 MB |
1968 | if (svp) { |
1969 | /* We already have a clone to use */ | |
11343788 | 1970 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 MB |
1971 | cv = *(CV**)svp; |
1972 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
1973 | "entersub: %p already has clone %p:%s\n", |
1974 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
1975 | CvOWNER(cv) = thr; |
1976 | SvREFCNT_inc(cv); | |
1977 | if (CvDEPTH(cv) == 0) | |
1978 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
1979 | } | |
11343788 | 1980 | else { |
3de9ffa1 MB |
1981 | /* (2) => grab ownership of cv. (3) => make clone */ |
1982 | if (!CvOWNER(cv)) { | |
1983 | CvOWNER(cv) = thr; | |
1984 | SvREFCNT_inc(cv); | |
11343788 | 1985 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 | 1986 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
1987 | "entersub: %p grabbing %p:%s in stash %s\n", |
1988 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
1989 | HvNAME(CvSTASH(cv)) : "(none)")); |
1990 | } else { | |
1991 | /* Make a new clone. */ | |
1992 | CV *clonecv; | |
1993 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
1994 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
1995 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), | |
1fd28e87 MB |
1996 | "entersub: %p cloning %p:%s\n", |
1997 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
1998 | /* |
1999 | * We're creating a new clone so there's no race | |
2000 | * between the original MUTEX_UNLOCK and the | |
2001 | * SvREFCNT_inc since no one will be trying to undef | |
2002 | * it out from underneath us. At least, I don't think | |
2003 | * there's a race... | |
2004 | */ | |
2005 | clonecv = cv_clone(cv); | |
2006 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2007 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2008 | CvOWNER(clonecv) = thr; |
2009 | cv = clonecv; | |
11343788 | 2010 | SvREFCNT_inc(cv); |
11343788 | 2011 | } |
3de9ffa1 MB |
2012 | DEBUG_L(if (CvDEPTH(cv) != 0) |
2013 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", | |
2014 | CvDEPTH(cv));); | |
2015 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2016 | } |
3de9ffa1 | 2017 | } |
11343788 MB |
2018 | #endif /* USE_THREADS */ |
2019 | ||
2020 | gimme = GIMME; | |
2021 | ||
a0d0e21e LW |
2022 | if (CvXSUB(cv)) { |
2023 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 2024 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
2025 | dMARK; |
2026 | register I32 items = SP - MARK; | |
67955e0c | 2027 | /* We dont worry to copy from @_. */ |
a0d0e21e LW |
2028 | while (sp > mark) { |
2029 | sp[1] = sp[0]; | |
2030 | sp--; | |
2031 | } | |
2032 | stack_sp = mark + 1; | |
ecfc5424 AD |
2033 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2034 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
2035 | MARK - stack_base + 1, | |
2036 | items); | |
a0d0e21e LW |
2037 | stack_sp = stack_base + items; |
2038 | } | |
2039 | else { | |
748a9306 LW |
2040 | I32 markix = TOPMARK; |
2041 | ||
a0d0e21e | 2042 | PUTBACK; |
67955e0c | 2043 | |
2044 | if (!hasargs) { | |
2045 | /* Need to copy @_ to stack. Alternative may be to | |
2046 | * switch stack to @_, and copy return values | |
2047 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2048 | AV* av; |
2049 | I32 items; | |
2050 | #ifdef USE_THREADS | |
2051 | av = (AV*)curpad[0]; | |
2052 | #else | |
2053 | av = GvAV(defgv); | |
2054 | #endif /* USE_THREADS */ | |
93965878 | 2055 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2056 | |
2057 | if (items) { | |
2058 | /* Mark is at the end of the stack. */ | |
2059 | EXTEND(sp, items); | |
2060 | Copy(AvARRAY(av), sp + 1, items, SV*); | |
2061 | sp += items; | |
2062 | PUTBACK ; | |
2063 | } | |
2064 | } | |
2065 | if (curcopdb) { /* We assume that the first | |
2066 | XSUB in &DB::sub is the | |
2067 | called one. */ | |
2068 | SAVESPTR(curcop); | |
2069 | curcop = curcopdb; | |
2070 | curcopdb = NULL; | |
2071 | } | |
2072 | /* Do we need to open block here? XXXX */ | |
a0d0e21e | 2073 | (void)(*CvXSUB(cv))(cv); |
748a9306 LW |
2074 | |
2075 | /* Enforce some sanity in scalar context. */ | |
5d94fbed | 2076 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 LW |
2077 | if (markix > stack_sp - stack_base) |
2078 | *(stack_base + markix) = &sv_undef; | |
2079 | else | |
2080 | *(stack_base + markix) = *stack_sp; | |
2081 | stack_sp = stack_base + markix; | |
2082 | } | |
a0d0e21e LW |
2083 | } |
2084 | LEAVE; | |
2085 | return NORMAL; | |
2086 | } | |
2087 | else { | |
2088 | dMARK; | |
2089 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2090 | AV* padlist = CvPADLIST(cv); |
2091 | SV** svp = AvARRAY(padlist); | |
2092 | push_return(op->op_next); | |
2093 | PUSHBLOCK(cx, CXt_SUB, MARK); | |
2094 | PUSHSUB(cx); | |
2095 | CvDEPTH(cv)++; | |
2096 | if (CvDEPTH(cv) < 2) | |
2097 | (void)SvREFCNT_inc(cv); | |
2098 | else { /* save temporaries on recursion? */ | |
5f05dabc | 2099 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 | 2100 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a | 2101 | sub_crush_depth(cv); |
93965878 | 2102 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2103 | AV *av; |
2104 | AV *newpad = newAV(); | |
4aa0a1f7 | 2105 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2106 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2107 | svp = AvARRAY(svp[0]); |
748a9306 | 2108 | for ( ;ix > 0; ix--) { |
a0d0e21e | 2109 | if (svp[ix] != &sv_undef) { |
748a9306 | 2110 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2111 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2112 | || *name == '&') /* anonymous code? */ | |
2113 | { | |
2114 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2115 | } |
2116 | else { /* our own lexical */ | |
2117 | if (*name == '@') | |
2118 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2119 | else if (*name == '%') | |
2120 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2121 | else | |
2122 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2123 | SvPADMY_on(sv); | |
2124 | } | |
a0d0e21e LW |
2125 | } |
2126 | else { | |
748a9306 | 2127 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2128 | SvPADTMP_on(sv); |
2129 | } | |
2130 | } | |
2131 | av = newAV(); /* will be @_ */ | |
2132 | av_extend(av, 0); | |
2133 | av_store(newpad, 0, (SV*)av); | |
2134 | AvFLAGS(av) = AVf_REIFY; | |
2135 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2136 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2137 | svp = AvARRAY(padlist); |
2138 | } | |
2139 | } | |
6d4ff0d2 MB |
2140 | #ifdef USE_THREADS |
2141 | if (!hasargs) { | |
a0d0e21e | 2142 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 | 2143 | |
93965878 | 2144 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2145 | if (items) { |
2146 | /* Mark is at the end of the stack. */ | |
2147 | EXTEND(sp, items); | |
2148 | Copy(AvARRAY(av), sp + 1, items, SV*); | |
2149 | sp += items; | |
2150 | PUTBACK ; | |
2151 | } | |
2152 | } | |
2153 | #endif /* USE_THREADS */ | |
2154 | SAVESPTR(curpad); | |
2155 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
2156 | #ifndef USE_THREADS | |
2157 | if (hasargs) | |
2158 | #endif /* USE_THREADS */ | |
2159 | { | |
2160 | AV* av; | |
a0d0e21e LW |
2161 | SV** ary; |
2162 | ||
77a005ab | 2163 | #if 0 |
0f15f207 MB |
2164 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2165 | "%p entersub preparing @_\n", thr)); | |
77a005ab | 2166 | #endif |
6d4ff0d2 | 2167 | av = (AV*)curpad[0]; |
a0d0e21e LW |
2168 | if (AvREAL(av)) { |
2169 | av_clear(av); | |
2170 | AvREAL_off(av); | |
2171 | } | |
6d4ff0d2 | 2172 | #ifndef USE_THREADS |
a0d0e21e | 2173 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 | 2174 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 MB |
2175 | #endif /* USE_THREADS */ |
2176 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2177 | ++MARK; |
2178 | ||
2179 | if (items > AvMAX(av) + 1) { | |
2180 | ary = AvALLOC(av); | |
2181 | if (AvARRAY(av) != ary) { | |
2182 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2183 | SvPVX(av) = (char*)ary; | |
2184 | } | |
2185 | if (items > AvMAX(av) + 1) { | |
2186 | AvMAX(av) = items - 1; | |
2187 | Renew(ary,items,SV*); | |
2188 | AvALLOC(av) = ary; | |
2189 | SvPVX(av) = (char*)ary; | |
2190 | } | |
2191 | } | |
2192 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2193 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2194 | |
2195 | while (items--) { | |
2196 | if (*MARK) | |
2197 | SvTEMP_off(*MARK); | |
2198 | MARK++; | |
2199 | } | |
2200 | } | |
77a005ab | 2201 | #if 0 |
0f15f207 MB |
2202 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2203 | "%p entersub returning %p\n", thr, CvSTART(cv))); | |
77a005ab | 2204 | #endif |
a0d0e21e LW |
2205 | RETURNOP(CvSTART(cv)); |
2206 | } | |
2207 | } | |
2208 | ||
44a8e56a | 2209 | void |
8ac85365 | 2210 | sub_crush_depth(CV *cv) |
44a8e56a | 2211 | { |
2212 | if (CvANON(cv)) | |
2213 | warn("Deep recursion on anonymous subroutine"); | |
2214 | else { | |
2215 | SV* tmpstr = sv_newmortal(); | |
2216 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
2217 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); | |
2218 | } | |
2219 | } | |
2220 | ||
a0d0e21e LW |
2221 | PP(pp_aelem) |
2222 | { | |
4e35701f | 2223 | djSP; |
a0d0e21e | 2224 | SV** svp; |
748a9306 | 2225 | I32 elem = POPi; |
68dc0745 | 2226 | AV* av = (AV*)POPs; |
2227 | U32 lval = op->op_flags & OPf_MOD; | |
2228 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
a0d0e21e | 2229 | |
748a9306 LW |
2230 | if (elem > 0) |
2231 | elem -= curcop->cop_arybase; | |
a0d0e21e LW |
2232 | if (SvTYPE(av) != SVt_PVAV) |
2233 | RETPUSHUNDEF; | |
68dc0745 | 2234 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2235 | if (lval) { |
68dc0745 | 2236 | if (!svp || *svp == &sv_undef) { |
2237 | SV* lv; | |
2238 | if (!defer) | |
2239 | DIE(no_aelem, elem); | |
2240 | lv = sv_newmortal(); | |
2241 | sv_upgrade(lv, SVt_PVLV); | |
2242 | LvTYPE(lv) = 'y'; | |
2243 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2244 | LvTARG(lv) = SvREFCNT_inc(av); | |
2245 | LvTARGOFF(lv) = elem; | |
2246 | LvTARGLEN(lv) = 1; | |
2247 | PUSHs(lv); | |
2248 | RETURN; | |
2249 | } | |
a0d0e21e LW |
2250 | if (op->op_private & OPpLVAL_INTRO) |
2251 | save_svref(svp); | |
5f05dabc | 2252 | else if (op->op_private & OPpDEREF) |
68dc0745 | 2253 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e LW |
2254 | } |
2255 | PUSHs(svp ? *svp : &sv_undef); | |
2256 | RETURN; | |
2257 | } | |
2258 | ||
02a9e968 | 2259 | void |
8ac85365 | 2260 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2261 | { |
2262 | if (SvGMAGICAL(sv)) | |
2263 | mg_get(sv); | |
2264 | if (!SvOK(sv)) { | |
2265 | if (SvREADONLY(sv)) | |
2266 | croak(no_modify); | |
5f05dabc | 2267 | if (SvTYPE(sv) < SVt_RV) |
2268 | sv_upgrade(sv, SVt_RV); | |
2269 | else if (SvTYPE(sv) >= SVt_PV) { | |
2270 | (void)SvOOK_off(sv); | |
2271 | Safefree(SvPVX(sv)); | |
2272 | SvLEN(sv) = SvCUR(sv) = 0; | |
2273 | } | |
68dc0745 | 2274 | switch (to_what) { |
5f05dabc | 2275 | case OPpDEREF_SV: |
2276 | SvRV(sv) = newSV(0); | |
2277 | break; | |
2278 | case OPpDEREF_AV: | |
2279 | SvRV(sv) = (SV*)newAV(); | |
2280 | break; | |
2281 | case OPpDEREF_HV: | |
2282 | SvRV(sv) = (SV*)newHV(); | |
2283 | break; | |
2284 | } | |
02a9e968 CS |
2285 | SvROK_on(sv); |
2286 | SvSETMAGIC(sv); | |
2287 | } | |
2288 | } | |
2289 | ||
a0d0e21e LW |
2290 | PP(pp_method) |
2291 | { | |
4e35701f | 2292 | djSP; |
a0d0e21e LW |
2293 | SV* sv; |
2294 | SV* ob; | |
2295 | GV* gv; | |
56304f61 CS |
2296 | HV* stash; |
2297 | char* name; | |
ac91690f CS |
2298 | char* packname; |
2299 | STRLEN packlen; | |
a0d0e21e | 2300 | |
fb73857a | 2301 | if (SvROK(TOPs)) { |
2302 | sv = SvRV(TOPs); | |
2303 | if (SvTYPE(sv) == SVt_PVCV) { | |
2304 | SETs(sv); | |
2305 | RETURN; | |
2306 | } | |
2307 | } | |
2308 | ||
56304f61 | 2309 | name = SvPV(TOPs, na); |
a0d0e21e LW |
2310 | sv = *(stack_base + TOPMARK + 1); |
2311 | ||
16d20bd9 AD |
2312 | if (SvGMAGICAL(sv)) |
2313 | mg_get(sv); | |
a0d0e21e | 2314 | if (SvROK(sv)) |
16d20bd9 | 2315 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2316 | else { |
2317 | GV* iogv; | |
a0d0e21e | 2318 | |
56304f61 | 2319 | packname = Nullch; |
a0d0e21e | 2320 | if (!SvOK(sv) || |
56304f61 | 2321 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2322 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2323 | !(ob=(SV*)GvIO(iogv))) | |
2324 | { | |
56304f61 | 2325 | if (!packname || !isIDFIRST(*packname)) |
ac91690f | 2326 | DIE("Can't call method \"%s\" without a package or object reference", name); |
56304f61 | 2327 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2328 | goto fetch; |
a0d0e21e | 2329 | } |
ac91690f | 2330 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2331 | } |
2332 | ||
ac91690f | 2333 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2334 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2335 | |
56304f61 | 2336 | stash = SvSTASH(ob); |
a0d0e21e | 2337 | |
ac91690f | 2338 | fetch: |
ac91690f | 2339 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2340 | if (!gv) { |
2341 | char* leaf = name; | |
2342 | char* sep = Nullch; | |
2343 | char* p; | |
2344 | ||
2345 | for (p = name; *p; p++) { | |
2346 | if (*p == '\'') | |
2347 | sep = p, leaf = p + 1; | |
2348 | else if (*p == ':' && *(p + 1) == ':') | |
2349 | sep = p, leaf = p + 2; | |
2350 | } | |
2351 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
2352 | packname = HvNAME(sep ? curcop->cop_stash : stash); | |
2353 | packlen = strlen(packname); | |
2354 | } | |
2355 | else { | |
2356 | packname = name; | |
2357 | packlen = sep - name; | |
2358 | } | |
2359 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2360 | leaf, (int)packlen, packname); | |
2361 | } | |
8ebc5c01 | 2362 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2363 | RETURN; |
2364 | } | |
22239a37 | 2365 |