Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
19 | #include "perl.h" |
20 | |
8ac85365 |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> |
23 | #endif |
24 | |
a0d0e21e |
25 | /* Hot code. */ |
26 | |
11343788 |
27 | #ifdef USE_THREADS |
28 | static void |
8ac85365 |
29 | unset_cvowner(void *cvarg) |
11343788 |
30 | { |
31 | register CV* cv = (CV *) cvarg; |
32 | #ifdef DEBUGGING |
33 | dTHR; |
34 | #endif /* DEBUGGING */ |
35 | |
1fd28e87 |
36 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
37 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 |
38 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
39 | DEBUG_L(if (CvDEPTH(cv) != 0) |
40 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
41 | CvDEPTH(cv));); |
11343788 |
42 | assert(thr == CvOWNER(cv)); |
43 | CvOWNER(cv) = 0; |
11343788 |
44 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
45 | SvREFCNT_dec(cv); |
46 | } |
11343788 |
47 | #endif /* USE_THREADS */ |
48 | |
a0d0e21e |
49 | PP(pp_const) |
50 | { |
4e35701f |
51 | djSP; |
a0d0e21e |
52 | XPUSHs(cSVOP->op_sv); |
53 | RETURN; |
54 | } |
55 | |
56 | PP(pp_nextstate) |
57 | { |
58 | curcop = (COP*)op; |
59 | TAINT_NOT; /* Each statement is presumed innocent */ |
60 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
61 | FREETMPS; |
62 | return NORMAL; |
63 | } |
64 | |
65 | PP(pp_gvsv) |
66 | { |
4e35701f |
67 | djSP; |
924508f0 |
68 | EXTEND(SP,1); |
a0d0e21e |
69 | if (op->op_private & OPpLVAL_INTRO) |
70 | PUSHs(save_scalar(cGVOP->op_gv)); |
71 | else |
72 | PUSHs(GvSV(cGVOP->op_gv)); |
73 | RETURN; |
74 | } |
75 | |
76 | PP(pp_null) |
77 | { |
78 | return NORMAL; |
79 | } |
80 | |
81 | PP(pp_pushmark) |
82 | { |
83 | PUSHMARK(stack_sp); |
84 | return NORMAL; |
85 | } |
86 | |
87 | PP(pp_stringify) |
88 | { |
4e35701f |
89 | djSP; dTARGET; |
a0d0e21e |
90 | STRLEN len; |
91 | char *s; |
92 | s = SvPV(TOPs,len); |
93 | sv_setpvn(TARG,s,len); |
94 | SETTARG; |
95 | RETURN; |
96 | } |
97 | |
98 | PP(pp_gv) |
99 | { |
4e35701f |
100 | djSP; |
a0d0e21e |
101 | XPUSHs((SV*)cGVOP->op_gv); |
102 | RETURN; |
103 | } |
104 | |
105 | PP(pp_and) |
106 | { |
4e35701f |
107 | djSP; |
a0d0e21e |
108 | if (!SvTRUE(TOPs)) |
109 | RETURN; |
110 | else { |
111 | --SP; |
112 | RETURNOP(cLOGOP->op_other); |
113 | } |
114 | } |
115 | |
116 | PP(pp_sassign) |
117 | { |
4e35701f |
118 | djSP; dPOPTOPssrl; |
748a9306 |
119 | MAGIC *mg; |
120 | |
a0d0e21e |
121 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
122 | SV *temp; |
123 | temp = left; left = right; right = temp; |
124 | } |
bbce6d69 |
125 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
126 | TAINT_NOT; |
54310121 |
127 | SvSetMagicSV(right, left); |
a0d0e21e |
128 | SETs(right); |
129 | RETURN; |
130 | } |
131 | |
132 | PP(pp_cond_expr) |
133 | { |
4e35701f |
134 | djSP; |
a0d0e21e |
135 | if (SvTRUEx(POPs)) |
136 | RETURNOP(cCONDOP->op_true); |
137 | else |
138 | RETURNOP(cCONDOP->op_false); |
139 | } |
140 | |
141 | PP(pp_unstack) |
142 | { |
143 | I32 oldsave; |
144 | TAINT_NOT; /* Each statement is presumed innocent */ |
145 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
146 | FREETMPS; |
147 | oldsave = scopestack[scopestack_ix - 1]; |
148 | LEAVE_SCOPE(oldsave); |
149 | return NORMAL; |
150 | } |
151 | |
a0d0e21e |
152 | PP(pp_concat) |
153 | { |
4e35701f |
154 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
155 | { |
156 | dPOPTOPssrl; |
a0d0e21e |
157 | STRLEN len; |
158 | char *s; |
159 | if (TARG != left) { |
160 | s = SvPV(left,len); |
161 | sv_setpvn(TARG,s,len); |
162 | } |
c07a80fd |
163 | else if (SvGMAGICAL(TARG)) |
164 | mg_get(TARG); |
7a4c00b4 |
165 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
166 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
167 | s = SvPV_force(TARG, len); |
4633a7c4 |
168 | } |
a0d0e21e |
169 | s = SvPV(right,len); |
68dc0745 |
170 | if (SvOK(TARG)) |
171 | sv_catpvn(TARG,s,len); |
172 | else |
173 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
174 | SETTARG; |
175 | RETURN; |
748a9306 |
176 | } |
a0d0e21e |
177 | } |
178 | |
179 | PP(pp_padsv) |
180 | { |
4e35701f |
181 | djSP; dTARGET; |
a0d0e21e |
182 | XPUSHs(TARG); |
4633a7c4 |
183 | if (op->op_flags & OPf_MOD) { |
184 | if (op->op_private & OPpLVAL_INTRO) |
185 | SAVECLEARSV(curpad[op->op_targ]); |
8ec5e241 |
186 | else if (op->op_private & OPpDEREF) { |
187 | PUTBACK; |
54310121 |
188 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
8ec5e241 |
189 | SPAGAIN; |
190 | } |
4633a7c4 |
191 | } |
a0d0e21e |
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 |
204 | { |
205 | dPOPnv; |
54310121 |
206 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
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 |
221 | } |
222 | else |
223 | sv_inc(TOPs); |
a0d0e21e |
224 | SvSETMAGIC(TOPs); |
225 | return NORMAL; |
226 | } |
227 | |
228 | PP(pp_or) |
229 | { |
4e35701f |
230 | djSP; |
a0d0e21e |
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 |
244 | SETn( left + right ); |
245 | RETURN; |
246 | } |
247 | } |
248 | |
249 | PP(pp_aelemfast) |
250 | { |
4e35701f |
251 | djSP; |
a0d0e21e |
252 | AV *av = GvAV((GV*)cSVOP->op_sv); |
be6c24e0 |
253 | U32 lval = op->op_flags & OPf_MOD; |
254 | SV** svp = av_fetch(av, op->op_private, lval); |
255 | SV *sv = (svp ? *svp : &sv_undef); |
6ff81951 |
256 | EXTEND(SP, 1); |
be6c24e0 |
257 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
258 | sv = sv_mortalcopy(sv); |
259 | PUSHs(sv); |
a0d0e21e |
260 | RETURN; |
261 | } |
262 | |
263 | PP(pp_join) |
264 | { |
4e35701f |
265 | djSP; dMARK; dTARGET; |
a0d0e21e |
266 | MARK++; |
267 | do_join(TARG, *MARK, MARK, SP); |
268 | SP = MARK; |
269 | SETs(TARG); |
270 | RETURN; |
271 | } |
272 | |
273 | PP(pp_pushre) |
274 | { |
4e35701f |
275 | djSP; |
44a8e56a |
276 | #ifdef DEBUGGING |
277 | /* |
278 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
279 | * will be enough to hold an OP*. |
280 | */ |
281 | SV* sv = sv_newmortal(); |
282 | sv_upgrade(sv, SVt_PVLV); |
283 | LvTYPE(sv) = '/'; |
284 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
285 | XPUSHs(sv); |
286 | #else |
a0d0e21e |
287 | XPUSHs((SV*)op); |
44a8e56a |
288 | #endif |
a0d0e21e |
289 | RETURN; |
290 | } |
291 | |
292 | /* Oversized hot code. */ |
293 | |
294 | PP(pp_print) |
295 | { |
4e35701f |
296 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
297 | GV *gv; |
298 | IO *io; |
760ac839 |
299 | register PerlIO *fp; |
236988e4 |
300 | MAGIC *mg; |
a0d0e21e |
301 | |
302 | if (op->op_flags & OPf_STACKED) |
303 | gv = (GV*)*++MARK; |
304 | else |
305 | gv = defoutgv; |
3049007d |
306 | if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 |
307 | if (MARK == ORIGMARK) { |
a60c0954 |
308 | /* If using default handle then we need to make space to |
309 | * pass object as 1st arg, so move other args up ... |
310 | */ |
4352c267 |
311 | MEXTEND(SP, 1); |
68dc0745 |
312 | ++MARK; |
313 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
314 | ++SP; |
315 | } |
316 | PUSHMARK(MARK - 1); |
236988e4 |
317 | *MARK = mg->mg_obj; |
68dc0745 |
318 | PUTBACK; |
236988e4 |
319 | ENTER; |
320 | perl_call_method("PRINT", G_SCALAR); |
321 | LEAVE; |
322 | SPAGAIN; |
68dc0745 |
323 | MARK = ORIGMARK + 1; |
324 | *MARK = *SP; |
325 | SP = MARK; |
236988e4 |
326 | RETURN; |
327 | } |
a0d0e21e |
328 | if (!(io = GvIO(gv))) { |
748a9306 |
329 | if (dowarn) { |
330 | SV* sv = sv_newmortal(); |
4f732624 |
331 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
332 | warn("Filehandle %s never opened", SvPV(sv,na)); |
333 | } |
334 | |
335 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
336 | goto just_say_no; |
337 | } |
338 | else if (!(fp = IoOFP(io))) { |
339 | if (dowarn) { |
748a9306 |
340 | SV* sv = sv_newmortal(); |
4f732624 |
341 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
342 | if (IoIFP(io)) |
748a9306 |
343 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
344 | else |
748a9306 |
345 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
346 | } |
748a9306 |
347 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
348 | goto just_say_no; |
349 | } |
350 | else { |
351 | MARK++; |
352 | if (ofslen) { |
353 | while (MARK <= SP) { |
354 | if (!do_print(*MARK, fp)) |
355 | break; |
356 | MARK++; |
357 | if (MARK <= SP) { |
760ac839 |
358 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
359 | MARK--; |
360 | break; |
361 | } |
362 | } |
363 | } |
364 | } |
365 | else { |
366 | while (MARK <= SP) { |
367 | if (!do_print(*MARK, fp)) |
368 | break; |
369 | MARK++; |
370 | } |
371 | } |
372 | if (MARK <= SP) |
373 | goto just_say_no; |
374 | else { |
375 | if (orslen) |
760ac839 |
376 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
377 | goto just_say_no; |
378 | |
379 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
380 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
381 | goto just_say_no; |
382 | } |
383 | } |
384 | SP = ORIGMARK; |
385 | PUSHs(&sv_yes); |
386 | RETURN; |
387 | |
388 | just_say_no: |
389 | SP = ORIGMARK; |
390 | PUSHs(&sv_undef); |
391 | RETURN; |
392 | } |
393 | |
394 | PP(pp_rv2av) |
395 | { |
4e35701f |
396 | djSP; dPOPss; |
a0d0e21e |
397 | AV *av; |
398 | |
399 | if (SvROK(sv)) { |
400 | wasref: |
401 | av = (AV*)SvRV(sv); |
402 | if (SvTYPE(av) != SVt_PVAV) |
403 | DIE("Not an ARRAY reference"); |
a0d0e21e |
404 | if (op->op_flags & OPf_REF) { |
405 | PUSHs((SV*)av); |
406 | RETURN; |
407 | } |
408 | } |
409 | else { |
410 | if (SvTYPE(sv) == SVt_PVAV) { |
411 | av = (AV*)sv; |
412 | if (op->op_flags & OPf_REF) { |
413 | PUSHs((SV*)av); |
414 | RETURN; |
415 | } |
416 | } |
417 | else { |
67955e0c |
418 | GV *gv; |
419 | |
a0d0e21e |
420 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
421 | char *sym; |
422 | |
a0d0e21e |
423 | if (SvGMAGICAL(sv)) { |
424 | mg_get(sv); |
425 | if (SvROK(sv)) |
426 | goto wasref; |
427 | } |
428 | if (!SvOK(sv)) { |
429 | if (op->op_flags & OPf_REF || |
430 | op->op_private & HINT_STRICT_REFS) |
431 | DIE(no_usym, "an ARRAY"); |
d83e6520 |
432 | if (dowarn) |
433 | warn(warn_uninit); |
4633a7c4 |
434 | if (GIMME == G_ARRAY) |
435 | RETURN; |
a0d0e21e |
436 | RETPUSHUNDEF; |
437 | } |
748a9306 |
438 | sym = SvPV(sv,na); |
a0d0e21e |
439 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
440 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
441 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
442 | } else { |
443 | gv = (GV*)sv; |
a0d0e21e |
444 | } |
67955e0c |
445 | av = GvAVn(gv); |
a0d0e21e |
446 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
447 | av = save_ary(gv); |
a0d0e21e |
448 | if (op->op_flags & OPf_REF) { |
449 | PUSHs((SV*)av); |
450 | RETURN; |
451 | } |
452 | } |
453 | } |
454 | |
455 | if (GIMME == G_ARRAY) { |
456 | I32 maxarg = AvFILL(av) + 1; |
93965878 |
457 | EXTEND(SP, maxarg); |
458 | if (SvRMAGICAL(av)) { |
459 | U32 i; |
460 | for (i=0; i < maxarg; i++) { |
461 | SV **svp = av_fetch(av, i, FALSE); |
462 | SP[i+1] = (svp) ? *svp : &sv_undef; |
463 | } |
464 | } |
465 | else { |
466 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
467 | } |
a0d0e21e |
468 | SP += maxarg; |
469 | } |
470 | else { |
471 | dTARGET; |
472 | I32 maxarg = AvFILL(av) + 1; |
473 | PUSHi(maxarg); |
474 | } |
475 | RETURN; |
476 | } |
477 | |
478 | PP(pp_rv2hv) |
479 | { |
4e35701f |
480 | djSP; dTOPss; |
a0d0e21e |
481 | HV *hv; |
482 | |
483 | if (SvROK(sv)) { |
484 | wasref: |
485 | hv = (HV*)SvRV(sv); |
c750a3ec |
486 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e |
487 | DIE("Not a HASH reference"); |
a0d0e21e |
488 | if (op->op_flags & OPf_REF) { |
489 | SETs((SV*)hv); |
490 | RETURN; |
491 | } |
492 | } |
493 | else { |
c750a3ec |
494 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
495 | hv = (HV*)sv; |
496 | if (op->op_flags & OPf_REF) { |
497 | SETs((SV*)hv); |
498 | RETURN; |
499 | } |
500 | } |
501 | else { |
67955e0c |
502 | GV *gv; |
503 | |
a0d0e21e |
504 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
505 | char *sym; |
506 | |
a0d0e21e |
507 | if (SvGMAGICAL(sv)) { |
508 | mg_get(sv); |
509 | if (SvROK(sv)) |
510 | goto wasref; |
511 | } |
512 | if (!SvOK(sv)) { |
513 | if (op->op_flags & OPf_REF || |
514 | op->op_private & HINT_STRICT_REFS) |
515 | DIE(no_usym, "a HASH"); |
d83e6520 |
516 | if (dowarn) |
517 | warn(warn_uninit); |
4633a7c4 |
518 | if (GIMME == G_ARRAY) { |
519 | SP--; |
520 | RETURN; |
521 | } |
a0d0e21e |
522 | RETSETUNDEF; |
523 | } |
748a9306 |
524 | sym = SvPV(sv,na); |
a0d0e21e |
525 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
526 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
527 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
528 | } else { |
529 | gv = (GV*)sv; |
a0d0e21e |
530 | } |
67955e0c |
531 | hv = GvHVn(gv); |
a0d0e21e |
532 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
533 | hv = save_hash(gv); |
a0d0e21e |
534 | if (op->op_flags & OPf_REF) { |
535 | SETs((SV*)hv); |
536 | RETURN; |
537 | } |
538 | } |
539 | } |
540 | |
541 | if (GIMME == G_ARRAY) { /* array wanted */ |
542 | *stack_sp = (SV*)hv; |
543 | return do_kv(ARGS); |
544 | } |
545 | else { |
546 | dTARGET; |
4b154ab5 |
547 | if (SvTYPE(hv) == SVt_PVAV) |
548 | hv = avhv_keys((AV*)hv); |
46fc3d4c |
549 | if (HvFILL(hv)) |
550 | sv_setpvf(TARG, "%ld/%ld", |
551 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
552 | else |
553 | sv_setiv(TARG, 0); |
c750a3ec |
554 | |
a0d0e21e |
555 | SETTARG; |
556 | RETURN; |
557 | } |
558 | } |
559 | |
560 | PP(pp_aassign) |
561 | { |
4e35701f |
562 | djSP; |
a0d0e21e |
563 | SV **lastlelem = stack_sp; |
564 | SV **lastrelem = stack_base + POPMARK; |
565 | SV **firstrelem = stack_base + POPMARK + 1; |
566 | SV **firstlelem = lastrelem + 1; |
567 | |
568 | register SV **relem; |
569 | register SV **lelem; |
570 | |
571 | register SV *sv; |
572 | register AV *ary; |
573 | |
54310121 |
574 | I32 gimme; |
a0d0e21e |
575 | HV *hash; |
576 | I32 i; |
577 | int magic; |
578 | |
579 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
580 | |
581 | /* If there's a common identifier on both sides we have to take |
582 | * special care that assigning the identifier on the left doesn't |
583 | * clobber a value on the right that's used later in the list. |
584 | */ |
585 | if (op->op_private & OPpASSIGN_COMMON) { |
586 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
587 | /*SUPPRESS 560*/ |
a1f49e72 |
588 | if (sv = *relem) { |
589 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
590 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
591 | } |
a0d0e21e |
592 | } |
593 | } |
594 | |
595 | relem = firstrelem; |
596 | lelem = firstlelem; |
597 | ary = Null(AV*); |
598 | hash = Null(HV*); |
599 | while (lelem <= lastlelem) { |
bbce6d69 |
600 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
601 | sv = *lelem++; |
602 | switch (SvTYPE(sv)) { |
603 | case SVt_PVAV: |
604 | ary = (AV*)sv; |
748a9306 |
605 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
606 | |
607 | av_clear(ary); |
7e42bd57 |
608 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
609 | i = 0; |
610 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
611 | SV **didstore; |
a0d0e21e |
612 | sv = NEWSV(28,0); |
613 | assert(*relem); |
614 | sv_setsv(sv,*relem); |
615 | *(relem++) = sv; |
5117ca91 |
616 | didstore = av_store(ary,i++,sv); |
617 | if (magic) { |
fb73857a |
618 | if (SvSMAGICAL(sv)) |
619 | mg_set(sv); |
5117ca91 |
620 | if (!didstore) |
621 | SvREFCNT_dec(sv); |
622 | } |
bbce6d69 |
623 | TAINT_NOT; |
a0d0e21e |
624 | } |
625 | break; |
626 | case SVt_PVHV: { |
a0d0e21e |
627 | SV *tmpstr; |
628 | |
629 | hash = (HV*)sv; |
748a9306 |
630 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
631 | hv_clear(hash); |
632 | |
633 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
634 | HE *didstore; |
4633a7c4 |
635 | if (*relem) |
a0d0e21e |
636 | sv = *(relem++); |
4633a7c4 |
637 | else |
a0d0e21e |
638 | sv = &sv_no, relem++; |
a0d0e21e |
639 | tmpstr = NEWSV(29,0); |
640 | if (*relem) |
641 | sv_setsv(tmpstr,*relem); /* value */ |
642 | *(relem++) = tmpstr; |
5117ca91 |
643 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
644 | if (magic) { |
fb73857a |
645 | if (SvSMAGICAL(tmpstr)) |
646 | mg_set(tmpstr); |
5117ca91 |
647 | if (!didstore) |
648 | SvREFCNT_dec(tmpstr); |
649 | } |
bbce6d69 |
650 | TAINT_NOT; |
8e07c86e |
651 | } |
6a0deba8 |
652 | if (relem == lastrelem) { |
653 | if (*relem) { |
654 | HE *didstore; |
655 | if (dowarn) { |
656 | if (relem == firstrelem && |
657 | SvROK(*relem) && |
658 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
659 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
660 | warn("Reference found where even-sized list expected"); |
661 | else |
662 | warn("Odd number of elements in hash assignment"); |
663 | } |
664 | tmpstr = NEWSV(29,0); |
665 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
666 | if (magic) { |
667 | if (SvSMAGICAL(tmpstr)) |
668 | mg_set(tmpstr); |
669 | if (!didstore) |
670 | SvREFCNT_dec(tmpstr); |
671 | } |
672 | TAINT_NOT; |
673 | } |
674 | relem++; |
1930e939 |
675 | } |
a0d0e21e |
676 | } |
677 | break; |
678 | default: |
679 | if (SvTHINKFIRST(sv)) { |
680 | if (SvREADONLY(sv) && curcop != &compiling) { |
d689ffdd |
681 | if (!SvIMMORTAL(sv)) |
a0d0e21e |
682 | DIE(no_modify); |
683 | if (relem <= lastrelem) |
684 | relem++; |
685 | break; |
686 | } |
687 | if (SvROK(sv)) |
688 | sv_unref(sv); |
689 | } |
690 | if (relem <= lastrelem) { |
691 | sv_setsv(sv, *relem); |
692 | *(relem++) = sv; |
693 | } |
694 | else |
695 | sv_setsv(sv, &sv_undef); |
696 | SvSETMAGIC(sv); |
697 | break; |
698 | } |
699 | } |
700 | if (delaymagic & ~DM_DELAY) { |
701 | if (delaymagic & DM_UID) { |
702 | #ifdef HAS_SETRESUID |
703 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
704 | #else |
705 | # ifdef HAS_SETREUID |
a0d0e21e |
706 | (void)setreuid(uid,euid); |
56febc5e |
707 | # else |
708 | # ifdef HAS_SETRUID |
a0d0e21e |
709 | if ((delaymagic & DM_UID) == DM_RUID) { |
710 | (void)setruid(uid); |
748a9306 |
711 | delaymagic &= ~DM_RUID; |
a0d0e21e |
712 | } |
56febc5e |
713 | # endif /* HAS_SETRUID */ |
714 | # ifdef HAS_SETEUID |
a0d0e21e |
715 | if ((delaymagic & DM_UID) == DM_EUID) { |
716 | (void)seteuid(uid); |
748a9306 |
717 | delaymagic &= ~DM_EUID; |
a0d0e21e |
718 | } |
56febc5e |
719 | # endif /* HAS_SETEUID */ |
a0d0e21e |
720 | if (delaymagic & DM_UID) { |
721 | if (uid != euid) |
722 | DIE("No setreuid available"); |
76e3520e |
723 | (void)PerlProc_setuid(uid); |
a0d0e21e |
724 | } |
56febc5e |
725 | # endif /* HAS_SETREUID */ |
726 | #endif /* HAS_SETRESUID */ |
76e3520e |
727 | uid = (int)PerlProc_getuid(); |
728 | euid = (int)PerlProc_geteuid(); |
a0d0e21e |
729 | } |
730 | if (delaymagic & DM_GID) { |
731 | #ifdef HAS_SETRESGID |
732 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
733 | #else |
734 | # ifdef HAS_SETREGID |
a0d0e21e |
735 | (void)setregid(gid,egid); |
56febc5e |
736 | # else |
737 | # ifdef HAS_SETRGID |
a0d0e21e |
738 | if ((delaymagic & DM_GID) == DM_RGID) { |
739 | (void)setrgid(gid); |
748a9306 |
740 | delaymagic &= ~DM_RGID; |
a0d0e21e |
741 | } |
56febc5e |
742 | # endif /* HAS_SETRGID */ |
743 | # ifdef HAS_SETEGID |
a0d0e21e |
744 | if ((delaymagic & DM_GID) == DM_EGID) { |
745 | (void)setegid(gid); |
748a9306 |
746 | delaymagic &= ~DM_EGID; |
a0d0e21e |
747 | } |
56febc5e |
748 | # endif /* HAS_SETEGID */ |
a0d0e21e |
749 | if (delaymagic & DM_GID) { |
750 | if (gid != egid) |
751 | DIE("No setregid available"); |
76e3520e |
752 | (void)PerlProc_setgid(gid); |
a0d0e21e |
753 | } |
56febc5e |
754 | # endif /* HAS_SETREGID */ |
755 | #endif /* HAS_SETRESGID */ |
76e3520e |
756 | gid = (int)PerlProc_getgid(); |
757 | egid = (int)PerlProc_getegid(); |
a0d0e21e |
758 | } |
4633a7c4 |
759 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
760 | } |
761 | delaymagic = 0; |
54310121 |
762 | |
763 | gimme = GIMME_V; |
764 | if (gimme == G_VOID) |
765 | SP = firstrelem - 1; |
766 | else if (gimme == G_SCALAR) { |
767 | dTARGET; |
768 | SP = firstrelem; |
769 | SETi(lastrelem - firstrelem + 1); |
770 | } |
771 | else { |
a0d0e21e |
772 | if (ary || hash) |
773 | SP = lastrelem; |
774 | else |
775 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
776 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
777 | while (relem <= SP) |
0c8c7a05 |
778 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
779 | } |
54310121 |
780 | RETURN; |
a0d0e21e |
781 | } |
782 | |
8782bef2 |
783 | PP(pp_qr) |
784 | { |
785 | djSP; |
786 | register PMOP *pm = cPMOP; |
787 | SV *rv = sv_newmortal(); |
788 | SV *sv = newSVrv(rv, "Regexp"); |
789 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
790 | RETURNX(PUSHs(rv)); |
791 | } |
792 | |
a0d0e21e |
793 | PP(pp_match) |
794 | { |
4e35701f |
795 | djSP; dTARG; |
a0d0e21e |
796 | register PMOP *pm = cPMOP; |
797 | register char *t; |
798 | register char *s; |
799 | char *strend; |
800 | I32 global; |
801 | I32 safebase; |
802 | char *truebase; |
d9f97599 |
803 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
804 | bool rxtainted; |
a0d0e21e |
805 | I32 gimme = GIMME; |
806 | STRLEN len; |
748a9306 |
807 | I32 minmatch = 0; |
4633a7c4 |
808 | I32 oldsave = savestack_ix; |
f86702cc |
809 | I32 update_minmatch = 1; |
c277df42 |
810 | SV *screamer; |
a0d0e21e |
811 | |
812 | if (op->op_flags & OPf_STACKED) |
813 | TARG = POPs; |
814 | else { |
54b9620d |
815 | TARG = DEFSV; |
a0d0e21e |
816 | EXTEND(SP,1); |
817 | } |
c277df42 |
818 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
819 | s = SvPV(TARG, len); |
820 | strend = s + len; |
821 | if (!s) |
822 | DIE("panic: do_match"); |
b3eb6a9b |
823 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
824 | (tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
825 | TAINT_NOT; |
a0d0e21e |
826 | |
48c036b1 |
827 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
828 | failure: |
a0d0e21e |
829 | if (gimme == G_ARRAY) |
830 | RETURN; |
831 | RETPUSHNO; |
832 | } |
833 | |
d9f97599 |
834 | if (!rx->prelen && curpm) { |
a0d0e21e |
835 | pm = curpm; |
d9f97599 |
836 | rx = pm->op_pmregexp; |
a0d0e21e |
837 | } |
d9f97599 |
838 | if (rx->minlen > len) goto failure; |
c277df42 |
839 | |
d9f97599 |
840 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
841 | && SvTYPE(rx->check_substr) == SVt_PVBM |
842 | && SvVALID(rx->check_substr)) |
c277df42 |
843 | ? TARG : Nullsv); |
a0d0e21e |
844 | truebase = t = s; |
845 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
d9f97599 |
846 | rx->startp[0] = 0; |
a0d0e21e |
847 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
848 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
849 | if (mg && mg->mg_len >= 0) { |
d9f97599 |
850 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
851 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
852 | update_minmatch = 0; |
748a9306 |
853 | } |
a0d0e21e |
854 | } |
855 | } |
d9f97599 |
856 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
137443ea |
857 | && !sawampersand); |
c277df42 |
858 | safebase = safebase ? 0 : REXEC_COPY_STR ; |
a0d0e21e |
859 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
860 | SAVEINT(multiline); |
861 | multiline = pm->op_pmflags & PMf_MULTILINE; |
862 | } |
863 | |
864 | play_it_again: |
d9f97599 |
865 | if (global && rx->startp[0]) { |
866 | t = s = rx->endp[0]; |
867 | if ((s + rx->minlen) > strend) |
a0d0e21e |
868 | goto nope; |
f86702cc |
869 | if (update_minmatch++) |
d9f97599 |
870 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
871 | } |
d9f97599 |
872 | if (rx->check_substr) { |
873 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ |
c277df42 |
874 | if ( screamer ) { |
875 | I32 p = -1; |
876 | |
d9f97599 |
877 | if (screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
878 | goto nope; |
d9f97599 |
879 | else if (!(s = screaminstr(TARG, rx->check_substr, |
880 | rx->check_offset_min, 0, &p, 0))) |
a0d0e21e |
881 | goto nope; |
d9f97599 |
882 | else if ((rx->reganch & ROPT_CHECK_ALL) |
883 | && !sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e |
884 | goto yup; |
885 | } |
d9f97599 |
886 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 |
887 | (unsigned char*)strend, |
411d5715 |
888 | rx->check_substr, 0))) |
a0d0e21e |
889 | goto nope; |
d9f97599 |
890 | else if ((rx->reganch & ROPT_CHECK_ALL) && !sawampersand) |
a0d0e21e |
891 | goto yup; |
ee027f1d |
892 | if (s && rx->check_offset_max < s - t) { |
d9f97599 |
893 | ++BmUSEFUL(rx->check_substr); |
894 | s -= rx->check_offset_max; |
a0d0e21e |
895 | } |
896 | else |
897 | s = t; |
898 | } |
c277df42 |
899 | /* Now checkstring is fixed, i.e. at fixed offset from the |
900 | beginning of match, and the match is anchored at s. */ |
901 | else if (!multiline) { /* Anchored near beginning of string. */ |
902 | I32 slen; |
d9f97599 |
903 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
904 | || ((slen = SvCUR(rx->check_substr)) > 1 |
905 | && memNE(SvPVX(rx->check_substr), |
906 | s + rx->check_offset_min, slen))) |
bbce6d69 |
907 | goto nope; |
a0d0e21e |
908 | } |
d9f97599 |
909 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
910 | && rx->check_substr == rx->float_substr) { |
911 | SvREFCNT_dec(rx->check_substr); |
912 | rx->check_substr = Nullsv; /* opt is being useless */ |
913 | rx->float_substr = Nullsv; |
a0d0e21e |
914 | } |
915 | } |
15e52e56 |
916 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, |
c277df42 |
917 | screamer, NULL, safebase)) |
bbce6d69 |
918 | { |
a0d0e21e |
919 | curpm = pm; |
920 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
921 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
922 | goto gotcha; |
923 | } |
924 | else |
925 | goto ret_no; |
926 | /*NOTREACHED*/ |
927 | |
928 | gotcha: |
72311751 |
929 | if (rxtainted) |
930 | RX_MATCH_TAINTED_on(rx); |
931 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
932 | if (gimme == G_ARRAY) { |
933 | I32 iters, i, len; |
934 | |
d9f97599 |
935 | iters = rx->nparens; |
a0d0e21e |
936 | if (global && !iters) |
937 | i = 1; |
938 | else |
939 | i = 0; |
c277df42 |
940 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
941 | EXTEND(SP, iters + i); |
bbce6d69 |
942 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
943 | for (i = !i; i <= iters; i++) { |
944 | PUSHs(sv_newmortal()); |
945 | /*SUPPRESS 560*/ |
d9f97599 |
946 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
947 | len = rx->endp[i] - s; |
a0d0e21e |
948 | sv_setpvn(*SP, s, len); |
949 | } |
950 | } |
951 | if (global) { |
d9f97599 |
952 | truebase = rx->subbeg; |
953 | strend = rx->subend; |
954 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
955 | ++rx->endp[0]; |
c277df42 |
956 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e |
957 | goto play_it_again; |
958 | } |
f7e33566 |
959 | else if (!iters) |
960 | XPUSHs(&sv_yes); |
4633a7c4 |
961 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
962 | RETURN; |
963 | } |
964 | else { |
965 | if (global) { |
966 | MAGIC* mg = 0; |
967 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
968 | mg = mg_find(TARG, 'g'); |
969 | if (!mg) { |
970 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
971 | mg = mg_find(TARG, 'g'); |
972 | } |
d9f97599 |
973 | if (rx->startp[0]) { |
974 | mg->mg_len = rx->endp[0] - rx->subbeg; |
975 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
976 | mg->mg_flags |= MGf_MINMATCH; |
977 | else |
978 | mg->mg_flags &= ~MGf_MINMATCH; |
979 | } |
a0d0e21e |
980 | } |
4633a7c4 |
981 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
982 | RETPUSHYES; |
983 | } |
984 | |
c277df42 |
985 | yup: /* Confirmed by check_substr */ |
72311751 |
986 | if (rxtainted) |
987 | RX_MATCH_TAINTED_on(rx); |
988 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
d9f97599 |
989 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e |
990 | curpm = pm; |
991 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
992 | pm->op_pmdynflags |= PMdf_USED; |
d9f97599 |
993 | Safefree(rx->subbase); |
994 | rx->subbase = Nullch; |
a0d0e21e |
995 | if (global) { |
d9f97599 |
996 | rx->subbeg = truebase; |
997 | rx->subend = strend; |
998 | rx->startp[0] = s; |
999 | rx->endp[0] = s + SvCUR(rx->check_substr); |
a0d0e21e |
1000 | goto gotcha; |
1001 | } |
1002 | if (sawampersand) { |
1003 | char *tmps; |
1004 | |
d9f97599 |
1005 | tmps = rx->subbase = savepvn(t, strend-t); |
1006 | rx->subbeg = tmps; |
1007 | rx->subend = tmps + (strend-t); |
1008 | tmps = rx->startp[0] = tmps + (s - t); |
1009 | rx->endp[0] = tmps + SvCUR(rx->check_substr); |
a0d0e21e |
1010 | } |
4633a7c4 |
1011 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1012 | RETPUSHYES; |
1013 | |
1014 | nope: |
d9f97599 |
1015 | if (rx->check_substr) |
1016 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e |
1017 | |
1018 | ret_no: |
c90c0ff4 |
1019 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1020 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1021 | MAGIC* mg = mg_find(TARG, 'g'); |
1022 | if (mg) |
565764a8 |
1023 | mg->mg_len = -1; |
a0d0e21e |
1024 | } |
1025 | } |
4633a7c4 |
1026 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1027 | if (gimme == G_ARRAY) |
1028 | RETURN; |
1029 | RETPUSHNO; |
1030 | } |
1031 | |
1032 | OP * |
8ac85365 |
1033 | do_readline(void) |
a0d0e21e |
1034 | { |
1035 | dSP; dTARGETSTACKED; |
1036 | register SV *sv; |
1037 | STRLEN tmplen = 0; |
1038 | STRLEN offset; |
760ac839 |
1039 | PerlIO *fp; |
a0d0e21e |
1040 | register IO *io = GvIO(last_in_gv); |
1041 | register I32 type = op->op_type; |
54310121 |
1042 | I32 gimme = GIMME_V; |
e79b0511 |
1043 | MAGIC *mg; |
a0d0e21e |
1044 | |
3049007d |
1045 | if (SvRMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
e79b0511 |
1046 | PUSHMARK(SP); |
1047 | XPUSHs(mg->mg_obj); |
1048 | PUTBACK; |
1049 | ENTER; |
54310121 |
1050 | perl_call_method("READLINE", gimme); |
e79b0511 |
1051 | LEAVE; |
1052 | SPAGAIN; |
54310121 |
1053 | if (gimme == G_SCALAR) |
1054 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1055 | RETURN; |
1056 | } |
a0d0e21e |
1057 | fp = Nullfp; |
1058 | if (io) { |
1059 | fp = IoIFP(io); |
1060 | if (!fp) { |
1061 | if (IoFLAGS(io) & IOf_ARGV) { |
1062 | if (IoFLAGS(io) & IOf_START) { |
1063 | IoFLAGS(io) &= ~IOf_START; |
1064 | IoLINES(io) = 0; |
1065 | if (av_len(GvAVn(last_in_gv)) < 0) { |
a2008d6d |
1066 | do_open(last_in_gv,"-",1,FALSE,0,0,Nullfp); |
1067 | sv_setpvn(GvSV(last_in_gv), "-", 1); |
1068 | SvSETMAGIC(GvSV(last_in_gv)); |
1069 | fp = IoIFP(io); |
1070 | goto have_fp; |
a0d0e21e |
1071 | } |
1072 | } |
1073 | fp = nextargv(last_in_gv); |
1074 | if (!fp) { /* Note: fp != IoIFP(io) */ |
1075 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
1076 | IoFLAGS(io) |= IOf_START; |
1077 | } |
1078 | } |
1079 | else if (type == OP_GLOB) { |
1080 | SV *tmpcmd = NEWSV(55, 0); |
1081 | SV *tmpglob = POPs; |
1082 | ENTER; |
1083 | SAVEFREESV(tmpcmd); |
1084 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1085 | /* since spawning off a process is a real performance hit */ |
1086 | { |
1087 | #include <descrip.h> |
1088 | #include <lib$routines.h> |
1089 | #include <nam.h> |
1090 | #include <rmsdef.h> |
1091 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1092 | char vmsspec[NAM$C_MAXRSS+1]; |
1093 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1094 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1095 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1096 | PerlIO *tmpfp; |
a0d0e21e |
1097 | STRLEN i; |
1098 | struct dsc$descriptor_s wilddsc |
1099 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1100 | struct dsc$descriptor_vs rsdsc |
1101 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1102 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1103 | |
1104 | /* We could find out if there's an explicit dev/dir or version |
1105 | by peeking into lib$find_file's internal context at |
1106 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1107 | but that's unsupported, so I don't want to do it now and |
1108 | have it bite someone in the future. */ |
6ad3d225 |
1109 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1110 | cp = SvPV(tmpglob,i); |
1111 | for (; i; i--) { |
1112 | if (cp[i] == ';') hasver = 1; |
1113 | if (cp[i] == '.') { |
1114 | if (sts) hasver = 1; |
1115 | else sts = 1; |
1116 | } |
1117 | if (cp[i] == '/') { |
1118 | hasdir = isunix = 1; |
1119 | break; |
748a9306 |
1120 | } |
a0d0e21e |
1121 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1122 | hasdir = 1; |
1123 | break; |
1124 | } |
1125 | } |
760ac839 |
1126 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1127 | Stat_t st; |
c6ed36e1 |
1128 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1129 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1130 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1131 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1132 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1133 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1134 | end = rstr + (unsigned long int) *rslt; |
1135 | if (!hasver) while (*end != ';') end--; |
1136 | *(end++) = '\n'; *end = '\0'; |
1137 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1138 | if (hasdir) { |
f86702cc |
1139 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1140 | begin = rstr; |
1141 | } |
1142 | else { |
1143 | begin = end; |
1144 | while (*(--begin) != ']' && *begin != '>') ; |
1145 | ++begin; |
1146 | } |
760ac839 |
1147 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1148 | } |
1149 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1150 | if (ok && sts != RMS$_NMF && |
1151 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1152 | if (!ok) { |
c07a80fd |
1153 | if (!(sts & 1)) { |
1154 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1155 | } |
760ac839 |
1156 | PerlIO_close(tmpfp); |
a0d0e21e |
1157 | fp = NULL; |
1158 | } |
1159 | else { |
760ac839 |
1160 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1161 | IoTYPE(io) = '<'; |
1162 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1163 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1164 | } |
1165 | } |
1166 | } |
1167 | #else /* !VMS */ |
1168 | #ifdef DOSISH |
67955e0c |
1169 | #ifdef OS2 |
1170 | sv_setpv(tmpcmd, "for a in "); |
1171 | sv_catsv(tmpcmd, tmpglob); |
1172 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1173 | #else |
39e571d4 |
1174 | #ifdef DJGPP |
1175 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1176 | sv_catsv(tmpcmd, tmpglob); |
1177 | #else |
a0d0e21e |
1178 | sv_setpv(tmpcmd, "perlglob "); |
1179 | sv_catsv(tmpcmd, tmpglob); |
1180 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1181 | #endif /* !DJGPP */ |
67955e0c |
1182 | #endif /* !OS2 */ |
1183 | #else /* !DOSISH */ |
1184 | #if defined(CSH) |
a0d0e21e |
1185 | sv_setpvn(tmpcmd, cshname, cshlen); |
1186 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1187 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1188 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1189 | #else |
1190 | sv_setpv(tmpcmd, "echo "); |
1191 | sv_catsv(tmpcmd, tmpglob); |
1192 | #if 'z' - 'a' == 25 |
1193 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1194 | #else |
1195 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1196 | #endif |
1197 | #endif /* !CSH */ |
67955e0c |
1198 | #endif /* !DOSISH */ |
c07a80fd |
1199 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1200 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1201 | fp = IoIFP(io); |
1202 | #endif /* !VMS */ |
1203 | LEAVE; |
1204 | } |
1205 | } |
1206 | else if (type == OP_GLOB) |
1207 | SP--; |
1208 | } |
1209 | if (!fp) { |
4633a7c4 |
1210 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1211 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 |
1212 | if (gimme == G_SCALAR) { |
a0d0e21e |
1213 | (void)SvOK_off(TARG); |
1214 | PUSHTARG; |
1215 | } |
1216 | RETURN; |
1217 | } |
a2008d6d |
1218 | have_fp: |
54310121 |
1219 | if (gimme == G_SCALAR) { |
a0d0e21e |
1220 | sv = TARG; |
9607fc9c |
1221 | if (SvROK(sv)) |
1222 | sv_unref(sv); |
a0d0e21e |
1223 | (void)SvUPGRADE(sv, SVt_PV); |
1224 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1225 | if (!tmplen) |
1226 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1227 | if (type == OP_RCATLINE) |
1228 | offset = SvCUR(sv); |
1229 | else |
1230 | offset = 0; |
1231 | } |
54310121 |
1232 | else { |
1233 | sv = sv_2mortal(NEWSV(57, 80)); |
1234 | offset = 0; |
1235 | } |
a0d0e21e |
1236 | for (;;) { |
1237 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1238 | PerlIO_clearerr(fp); |
a0d0e21e |
1239 | if (IoFLAGS(io) & IOf_ARGV) { |
1240 | fp = nextargv(last_in_gv); |
1241 | if (fp) |
1242 | continue; |
1243 | (void)do_close(last_in_gv, FALSE); |
1244 | IoFLAGS(io) |= IOf_START; |
1245 | } |
1246 | else if (type == OP_GLOB) { |
5cd24f17 |
1247 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1248 | warn("internal error: glob failed"); |
a0d0e21e |
1249 | } |
54310121 |
1250 | if (gimme == G_SCALAR) { |
a0d0e21e |
1251 | (void)SvOK_off(TARG); |
1252 | PUSHTARG; |
1253 | } |
1254 | RETURN; |
1255 | } |
bbce6d69 |
1256 | /* This should not be marked tainted if the fp is marked clean */ |
1257 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1258 | TAINT; |
1259 | SvTAINTED_on(sv); |
1260 | } |
a0d0e21e |
1261 | IoLINES(io)++; |
71be2cbc |
1262 | SvSETMAGIC(sv); |
a0d0e21e |
1263 | XPUSHs(sv); |
a0d0e21e |
1264 | if (type == OP_GLOB) { |
1265 | char *tmps; |
1266 | |
c07a80fd |
1267 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1268 | tmps = SvEND(sv) - 1; |
1269 | if (*tmps == *SvPVX(rs)) { |
1270 | *tmps = '\0'; |
1271 | SvCUR(sv)--; |
1272 | } |
1273 | } |
a0d0e21e |
1274 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1275 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1276 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1277 | break; |
76e3520e |
1278 | if (*tmps && PerlLIO_stat(SvPVX(sv), &statbuf) < 0) { |
a0d0e21e |
1279 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1280 | continue; |
1281 | } |
1282 | } |
54310121 |
1283 | if (gimme == G_ARRAY) { |
a0d0e21e |
1284 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1285 | SvLEN_set(sv, SvCUR(sv)+1); |
1286 | Renew(SvPVX(sv), SvLEN(sv), char); |
1287 | } |
1288 | sv = sv_2mortal(NEWSV(58, 80)); |
1289 | continue; |
1290 | } |
54310121 |
1291 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1292 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1293 | if (SvCUR(sv) < 60) |
1294 | SvLEN_set(sv, 80); |
1295 | else |
1296 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1297 | Renew(SvPVX(sv), SvLEN(sv), char); |
1298 | } |
1299 | RETURN; |
1300 | } |
1301 | } |
1302 | |
1303 | PP(pp_enter) |
1304 | { |
4e35701f |
1305 | djSP; |
c09156bb |
1306 | register PERL_CONTEXT *cx; |
54310121 |
1307 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e |
1308 | |
54310121 |
1309 | if (gimme == -1) { |
1310 | if (cxstack_ix >= 0) |
1311 | gimme = cxstack[cxstack_ix].blk_gimme; |
1312 | else |
1313 | gimme = G_SCALAR; |
1314 | } |
a0d0e21e |
1315 | |
1316 | ENTER; |
1317 | |
1318 | SAVETMPS; |
924508f0 |
1319 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1320 | |
1321 | RETURN; |
1322 | } |
1323 | |
1324 | PP(pp_helem) |
1325 | { |
4e35701f |
1326 | djSP; |
760ac839 |
1327 | HE* he; |
ae77835f |
1328 | SV **svp; |
a0d0e21e |
1329 | SV *keysv = POPs; |
a0d0e21e |
1330 | HV *hv = (HV*)POPs; |
68dc0745 |
1331 | U32 lval = op->op_flags & OPf_MOD; |
1332 | U32 defer = op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1333 | SV *sv; |
a0d0e21e |
1334 | |
ae77835f |
1335 | if (SvTYPE(hv) == SVt_PVHV) { |
1336 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1337 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1338 | } |
1339 | else if (SvTYPE(hv) == SVt_PVAV) { |
97fcbf96 |
1340 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1341 | } |
c750a3ec |
1342 | else { |
a0d0e21e |
1343 | RETPUSHUNDEF; |
c750a3ec |
1344 | } |
a0d0e21e |
1345 | if (lval) { |
97fcbf96 |
1346 | if (!svp || *svp == &sv_undef) { |
68dc0745 |
1347 | SV* lv; |
1348 | SV* key2; |
1349 | if (!defer) |
1350 | DIE(no_helem, SvPV(keysv, na)); |
1351 | lv = sv_newmortal(); |
1352 | sv_upgrade(lv, SVt_PVLV); |
1353 | LvTYPE(lv) = 'y'; |
1354 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1355 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1356 | LvTARG(lv) = SvREFCNT_inc(hv); |
1357 | LvTARGLEN(lv) = 1; |
1358 | PUSHs(lv); |
1359 | RETURN; |
1360 | } |
5f05dabc |
1361 | if (op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1362 | if (HvNAME(hv) && isGV(*svp)) |
1363 | save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1364 | else |
161b7d16 |
1365 | save_helem(hv, keysv, svp); |
5f05dabc |
1366 | } |
1367 | else if (op->op_private & OPpDEREF) |
ae77835f |
1368 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
1369 | } |
be6c24e0 |
1370 | sv = (svp ? *svp : &sv_undef); |
1371 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1372 | * Pushing the magical RHS on to the stack is useless, since |
1373 | * that magic is soon destined to be misled by the local(), |
1374 | * and thus the later pp_sassign() will fail to mg_get() the |
1375 | * old value. This should also cure problems with delayed |
1376 | * mg_get()s. GSAR 98-07-03 */ |
1377 | if (!lval && SvGMAGICAL(sv)) |
1378 | sv = sv_mortalcopy(sv); |
1379 | PUSHs(sv); |
a0d0e21e |
1380 | RETURN; |
1381 | } |
1382 | |
1383 | PP(pp_leave) |
1384 | { |
4e35701f |
1385 | djSP; |
c09156bb |
1386 | register PERL_CONTEXT *cx; |
a0d0e21e |
1387 | register SV **mark; |
1388 | SV **newsp; |
1389 | PMOP *newpm; |
1390 | I32 gimme; |
1391 | |
1392 | if (op->op_flags & OPf_SPECIAL) { |
1393 | cx = &cxstack[cxstack_ix]; |
1394 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1395 | } |
1396 | |
1397 | POPBLOCK(cx,newpm); |
1398 | |
54310121 |
1399 | gimme = OP_GIMME(op, -1); |
1400 | if (gimme == -1) { |
1401 | if (cxstack_ix >= 0) |
1402 | gimme = cxstack[cxstack_ix].blk_gimme; |
1403 | else |
1404 | gimme = G_SCALAR; |
1405 | } |
a0d0e21e |
1406 | |
a1f49e72 |
1407 | TAINT_NOT; |
54310121 |
1408 | if (gimme == G_VOID) |
1409 | SP = newsp; |
1410 | else if (gimme == G_SCALAR) { |
1411 | MARK = newsp + 1; |
1412 | if (MARK <= SP) |
1413 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1414 | *MARK = TOPs; |
1415 | else |
1416 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1417 | else { |
54310121 |
1418 | MEXTEND(mark,0); |
1419 | *MARK = &sv_undef; |
a0d0e21e |
1420 | } |
54310121 |
1421 | SP = MARK; |
a0d0e21e |
1422 | } |
54310121 |
1423 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1424 | /* in case LEAVE wipes old return values */ |
1425 | for (mark = newsp + 1; mark <= SP; mark++) { |
1426 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1427 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1428 | TAINT_NOT; /* Each item is independent */ |
1429 | } |
1430 | } |
a0d0e21e |
1431 | } |
1432 | curpm = newpm; /* Don't pop $1 et al till now */ |
1433 | |
1434 | LEAVE; |
1435 | |
1436 | RETURN; |
1437 | } |
1438 | |
1439 | PP(pp_iter) |
1440 | { |
4e35701f |
1441 | djSP; |
c09156bb |
1442 | register PERL_CONTEXT *cx; |
5f05dabc |
1443 | SV* sv; |
4633a7c4 |
1444 | AV* av; |
a0d0e21e |
1445 | |
924508f0 |
1446 | EXTEND(SP, 1); |
a0d0e21e |
1447 | cx = &cxstack[cxstack_ix]; |
1448 | if (cx->cx_type != CXt_LOOP) |
1449 | DIE("panic: pp_iter"); |
1450 | |
4633a7c4 |
1451 | av = cx->blk_loop.iterary; |
89ea2908 |
1452 | if (SvTYPE(av) != SVt_PVAV) { |
1453 | /* iterate ($min .. $max) */ |
1454 | if (cx->blk_loop.iterlval) { |
1455 | /* string increment */ |
1456 | register SV* cur = cx->blk_loop.iterlval; |
1457 | STRLEN maxlen; |
1458 | char *max = SvPV((SV*)av, maxlen); |
1459 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1460 | #ifndef USE_THREADS /* don't risk potential race */ |
1461 | if (SvREFCNT(*cx->blk_loop.itervar) == 1) { |
1462 | /* safe to reuse old SV */ |
1463 | sv_setsv(*cx->blk_loop.itervar, cur); |
1464 | } |
1465 | else |
1466 | #endif |
1467 | { |
1468 | /* we need a fresh SV every time so that loop body sees a |
1469 | * completely new SV for closures/references to work as |
1470 | * they used to */ |
1471 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1472 | *cx->blk_loop.itervar = newSVsv(cur); |
1473 | } |
89ea2908 |
1474 | if (strEQ(SvPVX(cur), max)) |
1475 | sv_setiv(cur, 0); /* terminate next time */ |
1476 | else |
1477 | sv_inc(cur); |
1478 | RETPUSHYES; |
1479 | } |
1480 | RETPUSHNO; |
1481 | } |
1482 | /* integer increment */ |
1483 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1484 | RETPUSHNO; |
7f61b687 |
1485 | |
eaa5c2d6 |
1486 | #ifndef USE_THREADS /* don't risk potential race */ |
1487 | if (SvREFCNT(*cx->blk_loop.itervar) == 1) { |
1488 | /* safe to reuse old SV */ |
1489 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); |
1490 | } |
1491 | else |
1492 | #endif |
1493 | { |
1494 | /* we need a fresh SV every time so that loop body sees a |
1495 | * completely new SV for closures/references to work as they |
1496 | * used to */ |
1497 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1498 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); |
1499 | } |
89ea2908 |
1500 | RETPUSHYES; |
1501 | } |
1502 | |
1503 | /* iterate array */ |
71be2cbc |
1504 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1505 | RETPUSHNO; |
a0d0e21e |
1506 | |
7a4c00b4 |
1507 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1508 | |
93965878 |
1509 | if (sv = (SvMAGICAL(av)) |
1510 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1511 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1512 | SvTEMP_off(sv); |
a0d0e21e |
1513 | else |
5f05dabc |
1514 | sv = &sv_undef; |
1515 | if (av != curstack && SvIMMORTAL(sv)) { |
1516 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1517 | if (lv && SvREFCNT(lv) > 1) { |
1518 | SvREFCNT_dec(lv); |
1519 | lv = Nullsv; |
1520 | } |
5f05dabc |
1521 | if (lv) |
1522 | SvREFCNT_dec(LvTARG(lv)); |
1523 | else { |
68dc0745 |
1524 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1525 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1526 | LvTYPE(lv) = 'y'; |
68dc0745 |
1527 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1528 | } |
1529 | LvTARG(lv) = SvREFCNT_inc(av); |
1530 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1531 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1532 | sv = (SV*)lv; |
1533 | } |
a0d0e21e |
1534 | |
7a4c00b4 |
1535 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1536 | RETPUSHYES; |
1537 | } |
1538 | |
1539 | PP(pp_subst) |
1540 | { |
4e35701f |
1541 | djSP; dTARG; |
a0d0e21e |
1542 | register PMOP *pm = cPMOP; |
1543 | PMOP *rpm = pm; |
1544 | register SV *dstr; |
1545 | register char *s; |
1546 | char *strend; |
1547 | register char *m; |
1548 | char *c; |
1549 | register char *d; |
1550 | STRLEN clen; |
1551 | I32 iters = 0; |
1552 | I32 maxiters; |
1553 | register I32 i; |
1554 | bool once; |
71be2cbc |
1555 | bool rxtainted; |
a0d0e21e |
1556 | char *orig; |
1557 | I32 safebase; |
d9f97599 |
1558 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1559 | STRLEN len; |
1560 | int force_on_match = 0; |
4633a7c4 |
1561 | I32 oldsave = savestack_ix; |
c277df42 |
1562 | I32 update_minmatch = 1; |
1563 | SV *screamer; |
a0d0e21e |
1564 | |
5cd24f17 |
1565 | /* known replacement string? */ |
1566 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
a0d0e21e |
1567 | if (op->op_flags & OPf_STACKED) |
1568 | TARG = POPs; |
1569 | else { |
54b9620d |
1570 | TARG = DEFSV; |
a0d0e21e |
1571 | EXTEND(SP,1); |
8ec5e241 |
1572 | } |
68dc0745 |
1573 | if (SvREADONLY(TARG) |
1574 | || (SvTYPE(TARG) > SVt_PVLV |
1575 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
1576 | croak(no_modify); |
8ec5e241 |
1577 | PUTBACK; |
1578 | |
a0d0e21e |
1579 | s = SvPV(TARG, len); |
68dc0745 |
1580 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1581 | force_on_match = 1; |
b3eb6a9b |
1582 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
1583 | (tainted && (pm->op_pmflags & PMf_RETAINT))); |
1584 | if (tainted) |
1585 | rxtainted |= 2; |
9212bbba |
1586 | TAINT_NOT; |
a0d0e21e |
1587 | |
1588 | force_it: |
1589 | if (!pm || !s) |
1590 | DIE("panic: do_subst"); |
1591 | |
1592 | strend = s + len; |
1593 | maxiters = (strend - s) + 10; |
1594 | |
d9f97599 |
1595 | if (!rx->prelen && curpm) { |
a0d0e21e |
1596 | pm = curpm; |
d9f97599 |
1597 | rx = pm->op_pmregexp; |
a0d0e21e |
1598 | } |
d9f97599 |
1599 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1600 | && SvTYPE(rx->check_substr) == SVt_PVBM |
1601 | && SvVALID(rx->check_substr)) |
c277df42 |
1602 | ? TARG : Nullsv); |
d9f97599 |
1603 | safebase = (!rx->nparens && !sawampersand) ? 0 : REXEC_COPY_STR; |
a0d0e21e |
1604 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1605 | SAVEINT(multiline); |
1606 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1607 | } |
1608 | orig = m = s; |
d9f97599 |
1609 | if (rx->check_substr) { |
1610 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ |
c277df42 |
1611 | if (screamer) { |
1612 | I32 p = -1; |
1613 | |
d9f97599 |
1614 | if (screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
1615 | goto nope; |
d9f97599 |
1616 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e |
1617 | goto nope; |
1618 | } |
d9f97599 |
1619 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 |
1620 | (unsigned char*)strend, |
411d5715 |
1621 | rx->check_substr, 0))) |
a0d0e21e |
1622 | goto nope; |
d9f97599 |
1623 | if (s && rx->check_offset_max < s - m) { |
1624 | ++BmUSEFUL(rx->check_substr); |
1625 | s -= rx->check_offset_max; |
a0d0e21e |
1626 | } |
1627 | else |
1628 | s = m; |
1629 | } |
c277df42 |
1630 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1631 | beginning of match, and the match is anchored at s. */ |
1632 | else if (!multiline) { /* Anchored at beginning of string. */ |
1633 | I32 slen; |
d9f97599 |
1634 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
1635 | || ((slen = SvCUR(rx->check_substr)) > 1 |
1636 | && memNE(SvPVX(rx->check_substr), |
1637 | s + rx->check_offset_min, slen))) |
bbce6d69 |
1638 | goto nope; |
a0d0e21e |
1639 | } |
d9f97599 |
1640 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1641 | && rx->check_substr == rx->float_substr) { |
1642 | SvREFCNT_dec(rx->check_substr); |
1643 | rx->check_substr = Nullsv; /* opt is being useless */ |
1644 | rx->float_substr = Nullsv; |
a0d0e21e |
1645 | } |
1646 | } |
71be2cbc |
1647 | |
1648 | /* only replace once? */ |
a0d0e21e |
1649 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1650 | |
1651 | /* known replacement string? */ |
5cd24f17 |
1652 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1653 | |
1654 | /* can do inplace substitution? */ |
d9f97599 |
1655 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1656 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
15e52e56 |
1657 | if (!CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
8ec5e241 |
1658 | SPAGAIN; |
71be2cbc |
1659 | PUSHs(&sv_no); |
1660 | LEAVE_SCOPE(oldsave); |
1661 | RETURN; |
1662 | } |
1663 | if (force_on_match) { |
1664 | force_on_match = 0; |
1665 | s = SvPV_force(TARG, len); |
1666 | goto force_it; |
1667 | } |
71be2cbc |
1668 | d = s; |
1669 | curpm = pm; |
1670 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1671 | if (once) { |
48c036b1 |
1672 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 |
1673 | if (rx->subbase) { |
1674 | m = orig + (rx->startp[0] - rx->subbase); |
1675 | d = orig + (rx->endp[0] - rx->subbase); |
c277df42 |
1676 | } else { |
d9f97599 |
1677 | m = rx->startp[0]; |
1678 | d = rx->endp[0]; |
c277df42 |
1679 | } |
71be2cbc |
1680 | s = orig; |
1681 | if (m - s > strend - d) { /* faster to shorten from end */ |
1682 | if (clen) { |
1683 | Copy(c, m, clen, char); |
1684 | m += clen; |
a0d0e21e |
1685 | } |
71be2cbc |
1686 | i = strend - d; |
1687 | if (i > 0) { |
1688 | Move(d, m, i, char); |
1689 | m += i; |
a0d0e21e |
1690 | } |
71be2cbc |
1691 | *m = '\0'; |
1692 | SvCUR_set(TARG, m - s); |
1693 | } |
1694 | /*SUPPRESS 560*/ |
1695 | else if (i = m - s) { /* faster from front */ |
1696 | d -= clen; |
1697 | m = d; |
1698 | sv_chop(TARG, d-i); |
1699 | s += i; |
1700 | while (i--) |
1701 | *--d = *--s; |
1702 | if (clen) |
1703 | Copy(c, m, clen, char); |
1704 | } |
1705 | else if (clen) { |
1706 | d -= clen; |
1707 | sv_chop(TARG, d); |
1708 | Copy(c, d, clen, char); |
1709 | } |
1710 | else { |
1711 | sv_chop(TARG, d); |
1712 | } |
48c036b1 |
1713 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1714 | SPAGAIN; |
71be2cbc |
1715 | PUSHs(&sv_yes); |
1716 | } |
1717 | else { |
71be2cbc |
1718 | do { |
1719 | if (iters++ > maxiters) |
1720 | DIE("Substitution loop"); |
d9f97599 |
1721 | rxtainted |= RX_MATCH_TAINTED(rx); |
1722 | m = rx->startp[0]; |
71be2cbc |
1723 | /*SUPPRESS 560*/ |
1724 | if (i = m - s) { |
1725 | if (s != d) |
1726 | Move(s, d, i, char); |
1727 | d += i; |
a0d0e21e |
1728 | } |
71be2cbc |
1729 | if (clen) { |
1730 | Copy(c, d, clen, char); |
1731 | d += clen; |
1732 | } |
d9f97599 |
1733 | s = rx->endp[0]; |
15e52e56 |
1734 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
c277df42 |
1735 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc |
1736 | if (s != d) { |
1737 | i = strend - s; |
1738 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1739 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1740 | } |
48c036b1 |
1741 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1742 | SPAGAIN; |
71be2cbc |
1743 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1744 | } |
71be2cbc |
1745 | (void)SvPOK_only(TARG); |
48c036b1 |
1746 | TAINT_IF(rxtainted); |
8ec5e241 |
1747 | if (SvSMAGICAL(TARG)) { |
1748 | PUTBACK; |
1749 | mg_set(TARG); |
1750 | SPAGAIN; |
1751 | } |
9212bbba |
1752 | SvTAINT(TARG); |
71be2cbc |
1753 | LEAVE_SCOPE(oldsave); |
1754 | RETURN; |
a0d0e21e |
1755 | } |
71be2cbc |
1756 | |
15e52e56 |
1757 | if (CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e |
1758 | if (force_on_match) { |
1759 | force_on_match = 0; |
1760 | s = SvPV_force(TARG, len); |
1761 | goto force_it; |
1762 | } |
48c036b1 |
1763 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1764 | dstr = NEWSV(25, len); |
a0d0e21e |
1765 | sv_setpvn(dstr, m, s-m); |
1766 | curpm = pm; |
1767 | if (!c) { |
c09156bb |
1768 | register PERL_CONTEXT *cx; |
8ec5e241 |
1769 | SPAGAIN; |
a0d0e21e |
1770 | PUSHSUBST(cx); |
1771 | RETURNOP(cPMOP->op_pmreplroot); |
1772 | } |
1773 | do { |
1774 | if (iters++ > maxiters) |
1775 | DIE("Substitution loop"); |
d9f97599 |
1776 | rxtainted |= RX_MATCH_TAINTED(rx); |
1777 | if (rx->subbase && rx->subbase != orig) { |
a0d0e21e |
1778 | m = s; |
1779 | s = orig; |
d9f97599 |
1780 | orig = rx->subbase; |
a0d0e21e |
1781 | s = orig + (m - s); |
1782 | strend = s + (strend - m); |
1783 | } |
d9f97599 |
1784 | m = rx->startp[0]; |
a0d0e21e |
1785 | sv_catpvn(dstr, s, m-s); |
d9f97599 |
1786 | s = rx->endp[0]; |
a0d0e21e |
1787 | if (clen) |
1788 | sv_catpvn(dstr, c, clen); |
1789 | if (once) |
1790 | break; |
15e52e56 |
1791 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e |
1792 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1793 | |
4633a7c4 |
1794 | (void)SvOOK_off(TARG); |
cb0b1708 |
1795 | Safefree(SvPVX(TARG)); |
748a9306 |
1796 | SvPVX(TARG) = SvPVX(dstr); |
1797 | SvCUR_set(TARG, SvCUR(dstr)); |
1798 | SvLEN_set(TARG, SvLEN(dstr)); |
1799 | SvPVX(dstr) = 0; |
1800 | sv_free(dstr); |
1801 | |
48c036b1 |
1802 | TAINT_IF(rxtainted & 1); |
f878fbec |
1803 | SPAGAIN; |
48c036b1 |
1804 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1805 | |
a0d0e21e |
1806 | (void)SvPOK_only(TARG); |
48c036b1 |
1807 | TAINT_IF(rxtainted); |
a0d0e21e |
1808 | SvSETMAGIC(TARG); |
9212bbba |
1809 | SvTAINT(TARG); |
4633a7c4 |
1810 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1811 | RETURN; |
1812 | } |
5cd24f17 |
1813 | goto ret_no; |
a0d0e21e |
1814 | |
1815 | nope: |
d9f97599 |
1816 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 |
1817 | |
8ec5e241 |
1818 | ret_no: |
1819 | SPAGAIN; |
a0d0e21e |
1820 | PUSHs(&sv_no); |
4633a7c4 |
1821 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1822 | RETURN; |
1823 | } |
1824 | |
1825 | PP(pp_grepwhile) |
1826 | { |
4e35701f |
1827 | djSP; |
a0d0e21e |
1828 | |
1829 | if (SvTRUEx(POPs)) |
1830 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1831 | ++*markstack_ptr; |
1832 | LEAVE; /* exit inner scope */ |
1833 | |
1834 | /* All done yet? */ |
924508f0 |
1835 | if (stack_base + *markstack_ptr > SP) { |
a0d0e21e |
1836 | I32 items; |
54310121 |
1837 | I32 gimme = GIMME_V; |
a0d0e21e |
1838 | |
1839 | LEAVE; /* exit outer scope */ |
1840 | (void)POPMARK; /* pop src */ |
1841 | items = --*markstack_ptr - markstack_ptr[-1]; |
1842 | (void)POPMARK; /* pop dst */ |
1843 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
1844 | if (gimme == G_SCALAR) { |
a0d0e21e |
1845 | dTARGET; |
1846 | XPUSHi(items); |
a0d0e21e |
1847 | } |
54310121 |
1848 | else if (gimme == G_ARRAY) |
1849 | SP += items; |
a0d0e21e |
1850 | RETURN; |
1851 | } |
1852 | else { |
1853 | SV *src; |
1854 | |
1855 | ENTER; /* enter inner scope */ |
1856 | SAVESPTR(curpm); |
1857 | |
1858 | src = stack_base[*markstack_ptr]; |
1859 | SvTEMP_off(src); |
54b9620d |
1860 | DEFSV = src; |
a0d0e21e |
1861 | |
1862 | RETURNOP(cLOGOP->op_other); |
1863 | } |
1864 | } |
1865 | |
1866 | PP(pp_leavesub) |
1867 | { |
4e35701f |
1868 | djSP; |
a0d0e21e |
1869 | SV **mark; |
1870 | SV **newsp; |
1871 | PMOP *newpm; |
1872 | I32 gimme; |
c09156bb |
1873 | register PERL_CONTEXT *cx; |
f86702cc |
1874 | struct block_sub cxsub; |
a0d0e21e |
1875 | |
1876 | POPBLOCK(cx,newpm); |
f86702cc |
1877 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1878 | |
a1f49e72 |
1879 | TAINT_NOT; |
a0d0e21e |
1880 | if (gimme == G_SCALAR) { |
1881 | MARK = newsp + 1; |
a29cdaf0 |
1882 | if (MARK <= SP) { |
1883 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
1884 | if (SvTEMP(TOPs)) { |
1885 | *MARK = SvREFCNT_inc(TOPs); |
1886 | FREETMPS; |
1887 | sv_2mortal(*MARK); |
1888 | } else { |
1889 | FREETMPS; |
1890 | *MARK = sv_mortalcopy(TOPs); |
1891 | } |
1892 | } else |
1893 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
1894 | } else { |
f86702cc |
1895 | MEXTEND(MARK, 0); |
a0d0e21e |
1896 | *MARK = &sv_undef; |
1897 | } |
1898 | SP = MARK; |
1899 | } |
54310121 |
1900 | else if (gimme == G_ARRAY) { |
f86702cc |
1901 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1902 | if (!SvTEMP(*MARK)) { |
f86702cc |
1903 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1904 | TAINT_NOT; /* Each item is independent */ |
1905 | } |
f86702cc |
1906 | } |
a0d0e21e |
1907 | } |
f86702cc |
1908 | PUTBACK; |
1909 | |
1910 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1911 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1912 | |
1913 | LEAVE; |
a0d0e21e |
1914 | return pop_return(); |
1915 | } |
1916 | |
76e3520e |
1917 | STATIC CV * |
8ac85365 |
1918 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 |
1919 | { |
1920 | dTHR; |
491527d0 |
1921 | SV *dbsv = GvSV(DBsub); |
1922 | |
1923 | if (!PERLDB_SUB_NN) { |
1924 | GV *gv = CvGV(cv); |
1925 | |
1926 | save_item(dbsv); |
1927 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1928 | || strEQ(GvNAME(gv), "END") |
1929 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1930 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
1931 | && (gv = (GV*)*svp) ))) { |
1932 | /* Use GV from the stack as a fallback. */ |
1933 | /* GV is potentially non-unique, or contain different CV. */ |
1934 | sv_setsv(dbsv, newRV((SV*)cv)); |
1935 | } |
1936 | else { |
1937 | gv_efullname3(dbsv, gv, Nullch); |
1938 | } |
3de9ffa1 |
1939 | } |
1940 | else { |
491527d0 |
1941 | SvUPGRADE(dbsv, SVt_PVIV); |
1942 | SvIOK_on(dbsv); |
1943 | SAVEIV(SvIVX(dbsv)); |
1944 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ |
3de9ffa1 |
1945 | } |
491527d0 |
1946 | |
3de9ffa1 |
1947 | if (CvXSUB(cv)) |
1948 | curcopdb = curcop; |
491527d0 |
1949 | cv = GvCV(DBsub); |
3de9ffa1 |
1950 | return cv; |
1951 | } |
1952 | |
a0d0e21e |
1953 | PP(pp_entersub) |
1954 | { |
4e35701f |
1955 | djSP; dPOPss; |
a0d0e21e |
1956 | GV *gv; |
1957 | HV *stash; |
1958 | register CV *cv; |
c09156bb |
1959 | register PERL_CONTEXT *cx; |
5d94fbed |
1960 | I32 gimme; |
07055b4c |
1961 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1962 | |
1963 | if (!sv) |
1964 | DIE("Not a CODE reference"); |
1965 | switch (SvTYPE(sv)) { |
1966 | default: |
1967 | if (!SvROK(sv)) { |
748a9306 |
1968 | char *sym; |
1969 | |
fb73857a |
1970 | if (sv == &sv_yes) { /* unfound import, ignore */ |
1971 | if (hasargs) |
1972 | SP = stack_base + POPMARK; |
a0d0e21e |
1973 | RETURN; |
fb73857a |
1974 | } |
15ff848f |
1975 | if (SvGMAGICAL(sv)) { |
1976 | mg_get(sv); |
1977 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1978 | } |
1979 | else |
1980 | sym = SvPV(sv, na); |
1981 | if (!sym) |
a0d0e21e |
1982 | DIE(no_usym, "a subroutine"); |
1983 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1984 | DIE(no_symref, sym, "a subroutine"); |
1985 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1986 | break; |
1987 | } |
1988 | cv = (CV*)SvRV(sv); |
1989 | if (SvTYPE(cv) == SVt_PVCV) |
1990 | break; |
1991 | /* FALL THROUGH */ |
1992 | case SVt_PVHV: |
1993 | case SVt_PVAV: |
1994 | DIE("Not a CODE reference"); |
1995 | case SVt_PVCV: |
1996 | cv = (CV*)sv; |
1997 | break; |
1998 | case SVt_PVGV: |
8ebc5c01 |
1999 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
2000 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
2001 | break; |
2002 | } |
2003 | |
2004 | ENTER; |
2005 | SAVETMPS; |
2006 | |
2007 | retry: |
2008 | if (!cv) |
2009 | DIE("Not a CODE reference"); |
2010 | |
2011 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2012 | GV* autogv; |
22239a37 |
2013 | SV* sub_name; |
44a8e56a |
2014 | |
2015 | /* anonymous or undef'd function leaves us no recourse */ |
2016 | if (CvANON(cv) || !(gv = CvGV(cv))) |
2017 | DIE("Undefined subroutine called"); |
2018 | /* autoloaded stub? */ |
2019 | if (cv != GvCV(gv)) { |
2020 | cv = GvCV(gv); |
2021 | goto retry; |
a0d0e21e |
2022 | } |
44a8e56a |
2023 | /* should call AUTOLOAD now? */ |
54310121 |
2024 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2025 | FALSE))) |
2026 | { |
44a8e56a |
2027 | cv = GvCV(autogv); |
2028 | goto retry; |
a0d0e21e |
2029 | } |
44a8e56a |
2030 | /* sorry */ |
22239a37 |
2031 | sub_name = sv_newmortal(); |
2032 | gv_efullname3(sub_name, gv, Nullch); |
2033 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); |
a0d0e21e |
2034 | } |
2035 | |
54310121 |
2036 | gimme = GIMME_V; |
3de9ffa1 |
2037 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 |
2038 | cv = get_db_sub(&sv, cv); |
3de9ffa1 |
2039 | if (!cv) |
2040 | DIE("No DBsub routine"); |
a0d0e21e |
2041 | |
11343788 |
2042 | #ifdef USE_THREADS |
3de9ffa1 |
2043 | /* |
2044 | * First we need to check if the sub or method requires locking. |
458fb581 |
2045 | * If so, we gain a lock on the CV, the first argument or the |
2046 | * stash (for static methods), as appropriate. This has to be |
2047 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2048 | * reschedule by returning a new op. |
3de9ffa1 |
2049 | */ |
11343788 |
2050 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2051 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2052 | MAGIC *mg; |
2053 | if (CvFLAGS(cv) & CVf_METHOD) { |
2054 | if (SP > stack_base + TOPMARK) |
2055 | sv = *(stack_base + TOPMARK + 1); |
2056 | else { |
2057 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2058 | croak("no argument for locked method call"); |
2059 | } |
2060 | if (SvROK(sv)) |
2061 | sv = SvRV(sv); |
458fb581 |
2062 | else { |
2063 | STRLEN len; |
2064 | char *stashname = SvPV(sv, len); |
2065 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2066 | } |
77a005ab |
2067 | } |
2068 | else { |
2069 | sv = (SV*)cv; |
2070 | } |
2071 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2072 | mg = condpair_magic(sv); |
2073 | MUTEX_LOCK(MgMUTEXP(mg)); |
2074 | if (MgOWNER(mg) == thr) |
2075 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2076 | else { |
2077 | while (MgOWNER(mg)) |
2078 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2079 | MgOWNER(mg) = thr; |
1fd28e87 |
2080 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
2081 | thr, sv);) |
77a005ab |
2082 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
e55aaa0e |
2083 | SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */ |
77a005ab |
2084 | save_destructor(unlock_condpair, sv); |
11343788 |
2085 | } |
77a005ab |
2086 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2087 | } |
3de9ffa1 |
2088 | /* |
2089 | * Now we have permission to enter the sub, we must distinguish |
2090 | * four cases. (0) It's an XSUB (in which case we don't care |
2091 | * about ownership); (1) it's ours already (and we're recursing); |
2092 | * (2) it's free (but we may already be using a cached clone); |
2093 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2094 | * Case (2) means we look for a clone--if we have one, use it |
2095 | * otherwise grab ownership of cv. Case (3) means we look for a |
2096 | * clone (for non-XSUBs) and have to create one if we don't |
2097 | * already have one. |
2098 | * Why look for a clone in case (2) when we could just grab |
2099 | * ownership of cv straight away? Well, we could be recursing, |
2100 | * i.e. we originally tried to enter cv while another thread |
2101 | * owned it (hence we used a clone) but it has been freed up |
2102 | * and we're now recursing into it. It may or may not be "better" |
2103 | * to use the clone but at least CvDEPTH can be trusted. |
2104 | */ |
2105 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2106 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2107 | else { |
3de9ffa1 |
2108 | /* Case (2) or (3) */ |
2109 | SV **svp; |
2110 | |
11343788 |
2111 | /* |
3de9ffa1 |
2112 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2113 | * do the hv_fetch? We might find someone has pinched it |
2114 | * when we look again, in which case we would be in case |
2115 | * (3) instead of (2) so we'd have to clone. Would the fact |
2116 | * that we released the mutex more quickly make up for this? |
2117 | */ |
6ee623d5 |
2118 | if (threadnum && |
2119 | (svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
2120 | { |
3de9ffa1 |
2121 | /* We already have a clone to use */ |
11343788 |
2122 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2123 | cv = *(CV**)svp; |
2124 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2125 | "entersub: %p already has clone %p:%s\n", |
2126 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2127 | CvOWNER(cv) = thr; |
2128 | SvREFCNT_inc(cv); |
2129 | if (CvDEPTH(cv) == 0) |
2130 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
2131 | } |
11343788 |
2132 | else { |
3de9ffa1 |
2133 | /* (2) => grab ownership of cv. (3) => make clone */ |
2134 | if (!CvOWNER(cv)) { |
2135 | CvOWNER(cv) = thr; |
2136 | SvREFCNT_inc(cv); |
11343788 |
2137 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
d9f997d7 |
2138 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2139 | "entersub: %p grabbing %p:%s in stash %s\n", |
2140 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2141 | HvNAME(CvSTASH(cv)) : "(none)")); |
2142 | } else { |
2143 | /* Make a new clone. */ |
2144 | CV *clonecv; |
2145 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2146 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2147 | DEBUG_L((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2148 | "entersub: %p cloning %p:%s\n", |
2149 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2150 | /* |
2151 | * We're creating a new clone so there's no race |
2152 | * between the original MUTEX_UNLOCK and the |
2153 | * SvREFCNT_inc since no one will be trying to undef |
2154 | * it out from underneath us. At least, I don't think |
2155 | * there's a race... |
2156 | */ |
2157 | clonecv = cv_clone(cv); |
2158 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2159 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2160 | CvOWNER(clonecv) = thr; |
2161 | cv = clonecv; |
11343788 |
2162 | SvREFCNT_inc(cv); |
11343788 |
2163 | } |
3de9ffa1 |
2164 | DEBUG_L(if (CvDEPTH(cv) != 0) |
2165 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2166 | CvDEPTH(cv));); |
2167 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
2168 | } |
3de9ffa1 |
2169 | } |
11343788 |
2170 | #endif /* USE_THREADS */ |
2171 | |
a0d0e21e |
2172 | if (CvXSUB(cv)) { |
2173 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
2174 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
2175 | dMARK; |
2176 | register I32 items = SP - MARK; |
67955e0c |
2177 | /* We dont worry to copy from @_. */ |
924508f0 |
2178 | while (SP > mark) { |
2179 | SP[1] = SP[0]; |
2180 | SP--; |
a0d0e21e |
2181 | } |
2182 | stack_sp = mark + 1; |
ecfc5424 |
2183 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2184 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
2185 | MARK - stack_base + 1, |
2186 | items); |
a0d0e21e |
2187 | stack_sp = stack_base + items; |
2188 | } |
2189 | else { |
748a9306 |
2190 | I32 markix = TOPMARK; |
2191 | |
a0d0e21e |
2192 | PUTBACK; |
67955e0c |
2193 | |
2194 | if (!hasargs) { |
2195 | /* Need to copy @_ to stack. Alternative may be to |
2196 | * switch stack to @_, and copy return values |
2197 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2198 | AV* av; |
2199 | I32 items; |
2200 | #ifdef USE_THREADS |
2201 | av = (AV*)curpad[0]; |
2202 | #else |
2203 | av = GvAV(defgv); |
2204 | #endif /* USE_THREADS */ |
93965878 |
2205 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2206 | |
2207 | if (items) { |
2208 | /* Mark is at the end of the stack. */ |
924508f0 |
2209 | EXTEND(SP, items); |
2210 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2211 | SP += items; |
67955e0c |
2212 | PUTBACK ; |
2213 | } |
2214 | } |
2215 | if (curcopdb) { /* We assume that the first |
2216 | XSUB in &DB::sub is the |
2217 | called one. */ |
2218 | SAVESPTR(curcop); |
2219 | curcop = curcopdb; |
2220 | curcopdb = NULL; |
2221 | } |
2222 | /* Do we need to open block here? XXXX */ |
1d583055 |
2223 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 |
2224 | |
2225 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
2226 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
2227 | if (markix > stack_sp - stack_base) |
2228 | *(stack_base + markix) = &sv_undef; |
2229 | else |
2230 | *(stack_base + markix) = *stack_sp; |
2231 | stack_sp = stack_base + markix; |
2232 | } |
a0d0e21e |
2233 | } |
2234 | LEAVE; |
2235 | return NORMAL; |
2236 | } |
2237 | else { |
2238 | dMARK; |
2239 | register I32 items = SP - MARK; |
a0d0e21e |
2240 | AV* padlist = CvPADLIST(cv); |
2241 | SV** svp = AvARRAY(padlist); |
2242 | push_return(op->op_next); |
2243 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2244 | PUSHSUB(cx); |
2245 | CvDEPTH(cv)++; |
2246 | if (CvDEPTH(cv) < 2) |
2247 | (void)SvREFCNT_inc(cv); |
2248 | else { /* save temporaries on recursion? */ |
5f05dabc |
2249 | if (CvDEPTH(cv) == 100 && dowarn |
84902520 |
2250 | && !(PERLDB_SUB && cv == GvCV(DBsub))) |
44a8e56a |
2251 | sub_crush_depth(cv); |
93965878 |
2252 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2253 | AV *av; |
2254 | AV *newpad = newAV(); |
4aa0a1f7 |
2255 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2256 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e |
2257 | svp = AvARRAY(svp[0]); |
748a9306 |
2258 | for ( ;ix > 0; ix--) { |
a0d0e21e |
2259 | if (svp[ix] != &sv_undef) { |
748a9306 |
2260 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2261 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2262 | || *name == '&') /* anonymous code? */ |
2263 | { |
2264 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2265 | } |
2266 | else { /* our own lexical */ |
2267 | if (*name == '@') |
2268 | av_store(newpad, ix, sv = (SV*)newAV()); |
2269 | else if (*name == '%') |
2270 | av_store(newpad, ix, sv = (SV*)newHV()); |
2271 | else |
2272 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2273 | SvPADMY_on(sv); |
2274 | } |
a0d0e21e |
2275 | } |
2276 | else { |
748a9306 |
2277 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2278 | SvPADTMP_on(sv); |
2279 | } |
2280 | } |
2281 | av = newAV(); /* will be @_ */ |
2282 | av_extend(av, 0); |
2283 | av_store(newpad, 0, (SV*)av); |
2284 | AvFLAGS(av) = AVf_REIFY; |
2285 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2286 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2287 | svp = AvARRAY(padlist); |
2288 | } |
2289 | } |
6d4ff0d2 |
2290 | #ifdef USE_THREADS |
2291 | if (!hasargs) { |
a0d0e21e |
2292 | AV* av = (AV*)curpad[0]; |
6d4ff0d2 |
2293 | |
93965878 |
2294 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2295 | if (items) { |
2296 | /* Mark is at the end of the stack. */ |
924508f0 |
2297 | EXTEND(SP, items); |
2298 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2299 | SP += items; |
6d4ff0d2 |
2300 | PUTBACK ; |
2301 | } |
2302 | } |
2303 | #endif /* USE_THREADS */ |
2304 | SAVESPTR(curpad); |
2305 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
2306 | #ifndef USE_THREADS |
2307 | if (hasargs) |
2308 | #endif /* USE_THREADS */ |
2309 | { |
2310 | AV* av; |
a0d0e21e |
2311 | SV** ary; |
2312 | |
77a005ab |
2313 | #if 0 |
0f15f207 |
2314 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2315 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2316 | #endif |
6d4ff0d2 |
2317 | av = (AV*)curpad[0]; |
a0d0e21e |
2318 | if (AvREAL(av)) { |
2319 | av_clear(av); |
2320 | AvREAL_off(av); |
2321 | } |
6d4ff0d2 |
2322 | #ifndef USE_THREADS |
a0d0e21e |
2323 | cx->blk_sub.savearray = GvAV(defgv); |
0c8c7a05 |
2324 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2325 | #endif /* USE_THREADS */ |
2326 | cx->blk_sub.argarray = av; |
a0d0e21e |
2327 | ++MARK; |
2328 | |
2329 | if (items > AvMAX(av) + 1) { |
2330 | ary = AvALLOC(av); |
2331 | if (AvARRAY(av) != ary) { |
2332 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2333 | SvPVX(av) = (char*)ary; |
2334 | } |
2335 | if (items > AvMAX(av) + 1) { |
2336 | AvMAX(av) = items - 1; |
2337 | Renew(ary,items,SV*); |
2338 | AvALLOC(av) = ary; |
2339 | SvPVX(av) = (char*)ary; |
2340 | } |
2341 | } |
2342 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2343 | AvFILLp(av) = items - 1; |
a0d0e21e |
2344 | |
2345 | while (items--) { |
2346 | if (*MARK) |
2347 | SvTEMP_off(*MARK); |
2348 | MARK++; |
2349 | } |
2350 | } |
77a005ab |
2351 | #if 0 |
0f15f207 |
2352 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
2353 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2354 | #endif |
a0d0e21e |
2355 | RETURNOP(CvSTART(cv)); |
2356 | } |
2357 | } |
2358 | |
44a8e56a |
2359 | void |
8ac85365 |
2360 | sub_crush_depth(CV *cv) |
44a8e56a |
2361 | { |
2362 | if (CvANON(cv)) |
2363 | warn("Deep recursion on anonymous subroutine"); |
2364 | else { |
2365 | SV* tmpstr = sv_newmortal(); |
2366 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
2367 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
2368 | } |
2369 | } |
2370 | |
a0d0e21e |
2371 | PP(pp_aelem) |
2372 | { |
4e35701f |
2373 | djSP; |
a0d0e21e |
2374 | SV** svp; |
748a9306 |
2375 | I32 elem = POPi; |
68dc0745 |
2376 | AV* av = (AV*)POPs; |
2377 | U32 lval = op->op_flags & OPf_MOD; |
2378 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2379 | SV *sv; |
a0d0e21e |
2380 | |
748a9306 |
2381 | if (elem > 0) |
2382 | elem -= curcop->cop_arybase; |
a0d0e21e |
2383 | if (SvTYPE(av) != SVt_PVAV) |
2384 | RETPUSHUNDEF; |
68dc0745 |
2385 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2386 | if (lval) { |
68dc0745 |
2387 | if (!svp || *svp == &sv_undef) { |
2388 | SV* lv; |
2389 | if (!defer) |
2390 | DIE(no_aelem, elem); |
2391 | lv = sv_newmortal(); |
2392 | sv_upgrade(lv, SVt_PVLV); |
2393 | LvTYPE(lv) = 'y'; |
2394 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2395 | LvTARG(lv) = SvREFCNT_inc(av); |
2396 | LvTARGOFF(lv) = elem; |
2397 | LvTARGLEN(lv) = 1; |
2398 | PUSHs(lv); |
2399 | RETURN; |
2400 | } |
a0d0e21e |
2401 | if (op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2402 | save_aelem(av, elem, svp); |
5f05dabc |
2403 | else if (op->op_private & OPpDEREF) |
68dc0745 |
2404 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
2405 | } |
be6c24e0 |
2406 | sv = (svp ? *svp : &sv_undef); |
2407 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2408 | sv = sv_mortalcopy(sv); |
2409 | PUSHs(sv); |
a0d0e21e |
2410 | RETURN; |
2411 | } |
2412 | |
02a9e968 |
2413 | void |
8ac85365 |
2414 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 |
2415 | { |
2416 | if (SvGMAGICAL(sv)) |
2417 | mg_get(sv); |
2418 | if (!SvOK(sv)) { |
2419 | if (SvREADONLY(sv)) |
2420 | croak(no_modify); |
5f05dabc |
2421 | if (SvTYPE(sv) < SVt_RV) |
2422 | sv_upgrade(sv, SVt_RV); |
2423 | else if (SvTYPE(sv) >= SVt_PV) { |
2424 | (void)SvOOK_off(sv); |
2425 | Safefree(SvPVX(sv)); |
2426 | SvLEN(sv) = SvCUR(sv) = 0; |
2427 | } |
68dc0745 |
2428 | switch (to_what) { |
5f05dabc |
2429 | case OPpDEREF_SV: |
8c52afec |
2430 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2431 | break; |
2432 | case OPpDEREF_AV: |
2433 | SvRV(sv) = (SV*)newAV(); |
2434 | break; |
2435 | case OPpDEREF_HV: |
2436 | SvRV(sv) = (SV*)newHV(); |
2437 | break; |
2438 | } |
02a9e968 |
2439 | SvROK_on(sv); |
2440 | SvSETMAGIC(sv); |
2441 | } |
2442 | } |
2443 | |
a0d0e21e |
2444 | PP(pp_method) |
2445 | { |
4e35701f |
2446 | djSP; |
a0d0e21e |
2447 | SV* sv; |
2448 | SV* ob; |
2449 | GV* gv; |
56304f61 |
2450 | HV* stash; |
2451 | char* name; |
ac91690f |
2452 | char* packname; |
2453 | STRLEN packlen; |
a0d0e21e |
2454 | |
fb73857a |
2455 | if (SvROK(TOPs)) { |
2456 | sv = SvRV(TOPs); |
2457 | if (SvTYPE(sv) == SVt_PVCV) { |
2458 | SETs(sv); |
2459 | RETURN; |
2460 | } |
2461 | } |
2462 | |
56304f61 |
2463 | name = SvPV(TOPs, na); |
a0d0e21e |
2464 | sv = *(stack_base + TOPMARK + 1); |
2465 | |
16d20bd9 |
2466 | if (SvGMAGICAL(sv)) |
2467 | mg_get(sv); |
a0d0e21e |
2468 | if (SvROK(sv)) |
16d20bd9 |
2469 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2470 | else { |
2471 | GV* iogv; |
a0d0e21e |
2472 | |
56304f61 |
2473 | packname = Nullch; |
a0d0e21e |
2474 | if (!SvOK(sv) || |
56304f61 |
2475 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2476 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2477 | !(ob=(SV*)GvIO(iogv))) |
2478 | { |
56304f61 |
2479 | if (!packname || !isIDFIRST(*packname)) |
72b5445b |
2480 | DIE("Can't call method \"%s\" %s", name, |
2481 | SvOK(sv)? "without a package or object reference" |
2482 | : "on an undefined value"); |
56304f61 |
2483 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2484 | goto fetch; |
a0d0e21e |
2485 | } |
ac91690f |
2486 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2487 | } |
2488 | |
ac91690f |
2489 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e |
2490 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2491 | |
56304f61 |
2492 | stash = SvSTASH(ob); |
a0d0e21e |
2493 | |
ac91690f |
2494 | fetch: |
ac91690f |
2495 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2496 | if (!gv) { |
2497 | char* leaf = name; |
2498 | char* sep = Nullch; |
2499 | char* p; |
2500 | |
2501 | for (p = name; *p; p++) { |
2502 | if (*p == '\'') |
2503 | sep = p, leaf = p + 1; |
2504 | else if (*p == ':' && *(p + 1) == ':') |
2505 | sep = p, leaf = p + 2; |
2506 | } |
2507 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
2508 | packname = HvNAME(sep ? curcop->cop_stash : stash); |
2509 | packlen = strlen(packname); |
2510 | } |
2511 | else { |
2512 | packname = name; |
2513 | packlen = sep - name; |
2514 | } |
2515 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", |
2516 | leaf, (int)packlen, packname); |
2517 | } |
8ebc5c01 |
2518 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2519 | RETURN; |
2520 | } |
22239a37 |
2521 | |