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