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 | |
21 | /* Hot code. */ |
22 | |
23 | PP(pp_const) |
24 | { |
25 | dSP; |
26 | XPUSHs(cSVOP->op_sv); |
27 | RETURN; |
28 | } |
29 | |
30 | PP(pp_nextstate) |
31 | { |
32 | curcop = (COP*)op; |
33 | TAINT_NOT; /* Each statement is presumed innocent */ |
34 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
35 | FREETMPS; |
36 | return NORMAL; |
37 | } |
38 | |
39 | PP(pp_gvsv) |
40 | { |
41 | dSP; |
42 | EXTEND(sp,1); |
43 | if (op->op_private & OPpLVAL_INTRO) |
44 | PUSHs(save_scalar(cGVOP->op_gv)); |
45 | else |
46 | PUSHs(GvSV(cGVOP->op_gv)); |
47 | RETURN; |
48 | } |
49 | |
50 | PP(pp_null) |
51 | { |
52 | return NORMAL; |
53 | } |
54 | |
55 | PP(pp_pushmark) |
56 | { |
57 | PUSHMARK(stack_sp); |
58 | return NORMAL; |
59 | } |
60 | |
61 | PP(pp_stringify) |
62 | { |
63 | dSP; dTARGET; |
64 | STRLEN len; |
65 | char *s; |
66 | s = SvPV(TOPs,len); |
67 | sv_setpvn(TARG,s,len); |
68 | SETTARG; |
69 | RETURN; |
70 | } |
71 | |
72 | PP(pp_gv) |
73 | { |
74 | dSP; |
75 | XPUSHs((SV*)cGVOP->op_gv); |
76 | RETURN; |
77 | } |
78 | |
c07a80fd |
79 | PP(pp_gelem) |
80 | { |
81 | GV *gv; |
82 | SV *sv; |
83 | SV *ref; |
84 | char *elem; |
85 | dSP; |
86 | |
87 | sv = POPs; |
88 | elem = SvPV(sv, na); |
89 | gv = (GV*)POPs; |
90 | ref = Nullsv; |
91 | sv = Nullsv; |
92 | switch (elem ? *elem : '\0') |
93 | { |
94 | case 'A': |
95 | if (strEQ(elem, "ARRAY")) |
96 | ref = (SV*)GvAV(gv); |
97 | break; |
98 | case 'C': |
99 | if (strEQ(elem, "CODE")) |
8ebc5c01 |
100 | ref = (SV*)GvCVu(gv); |
c07a80fd |
101 | break; |
102 | case 'F': |
36477c24 |
103 | if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */ |
c07a80fd |
104 | ref = (SV*)GvIOp(gv); |
105 | break; |
106 | case 'G': |
107 | if (strEQ(elem, "GLOB")) |
108 | ref = (SV*)gv; |
109 | break; |
110 | case 'H': |
111 | if (strEQ(elem, "HASH")) |
112 | ref = (SV*)GvHV(gv); |
113 | break; |
36477c24 |
114 | case 'I': |
115 | if (strEQ(elem, "IO")) |
116 | ref = (SV*)GvIOp(gv); |
117 | break; |
c07a80fd |
118 | case 'N': |
119 | if (strEQ(elem, "NAME")) |
120 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); |
121 | break; |
122 | case 'P': |
123 | if (strEQ(elem, "PACKAGE")) |
124 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); |
125 | break; |
126 | case 'S': |
127 | if (strEQ(elem, "SCALAR")) |
128 | ref = GvSV(gv); |
129 | break; |
130 | } |
131 | if (ref) |
132 | sv = newRV(ref); |
133 | if (sv) |
134 | sv_2mortal(sv); |
135 | else |
136 | sv = &sv_undef; |
137 | XPUSHs(sv); |
138 | RETURN; |
139 | } |
140 | |
a0d0e21e |
141 | PP(pp_and) |
142 | { |
143 | dSP; |
144 | if (!SvTRUE(TOPs)) |
145 | RETURN; |
146 | else { |
147 | --SP; |
148 | RETURNOP(cLOGOP->op_other); |
149 | } |
150 | } |
151 | |
152 | PP(pp_sassign) |
153 | { |
154 | dSP; dPOPTOPssrl; |
748a9306 |
155 | MAGIC *mg; |
156 | |
a0d0e21e |
157 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
158 | SV *temp; |
159 | temp = left; left = right; right = temp; |
160 | } |
bbce6d69 |
161 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
162 | TAINT_NOT; |
54310121 |
163 | SvSetMagicSV(right, left); |
a0d0e21e |
164 | SETs(right); |
165 | RETURN; |
166 | } |
167 | |
168 | PP(pp_cond_expr) |
169 | { |
170 | dSP; |
171 | if (SvTRUEx(POPs)) |
172 | RETURNOP(cCONDOP->op_true); |
173 | else |
174 | RETURNOP(cCONDOP->op_false); |
175 | } |
176 | |
177 | PP(pp_unstack) |
178 | { |
179 | I32 oldsave; |
180 | TAINT_NOT; /* Each statement is presumed innocent */ |
181 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
182 | FREETMPS; |
183 | oldsave = scopestack[scopestack_ix - 1]; |
184 | LEAVE_SCOPE(oldsave); |
185 | return NORMAL; |
186 | } |
187 | |
a0d0e21e |
188 | PP(pp_concat) |
189 | { |
748a9306 |
190 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
191 | { |
192 | dPOPTOPssrl; |
a0d0e21e |
193 | STRLEN len; |
194 | char *s; |
195 | if (TARG != left) { |
196 | s = SvPV(left,len); |
197 | sv_setpvn(TARG,s,len); |
198 | } |
c07a80fd |
199 | else if (SvGMAGICAL(TARG)) |
200 | mg_get(TARG); |
7a4c00b4 |
201 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
202 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
203 | s = SvPV_force(TARG, len); |
4633a7c4 |
204 | } |
a0d0e21e |
205 | s = SvPV(right,len); |
68dc0745 |
206 | if (SvOK(TARG)) |
207 | sv_catpvn(TARG,s,len); |
208 | else |
209 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
210 | SETTARG; |
211 | RETURN; |
748a9306 |
212 | } |
a0d0e21e |
213 | } |
214 | |
215 | PP(pp_padsv) |
216 | { |
217 | dSP; dTARGET; |
218 | XPUSHs(TARG); |
4633a7c4 |
219 | if (op->op_flags & OPf_MOD) { |
220 | if (op->op_private & OPpLVAL_INTRO) |
221 | SAVECLEARSV(curpad[op->op_targ]); |
5f05dabc |
222 | else if (op->op_private & OPpDEREF) |
54310121 |
223 | vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF); |
4633a7c4 |
224 | } |
a0d0e21e |
225 | RETURN; |
226 | } |
227 | |
228 | PP(pp_readline) |
229 | { |
230 | last_in_gv = (GV*)(*stack_sp--); |
231 | return do_readline(); |
232 | } |
233 | |
234 | PP(pp_eq) |
235 | { |
236 | dSP; tryAMAGICbinSET(eq,0); |
237 | { |
238 | dPOPnv; |
54310121 |
239 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
240 | RETURN; |
241 | } |
242 | } |
243 | |
244 | PP(pp_preinc) |
245 | { |
246 | dSP; |
68dc0745 |
247 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a |
248 | croak(no_modify); |
55497cff |
249 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
250 | SvIVX(TOPs) != IV_MAX) |
251 | { |
252 | ++SvIVX(TOPs); |
253 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
254 | } |
255 | else |
256 | sv_inc(TOPs); |
a0d0e21e |
257 | SvSETMAGIC(TOPs); |
258 | return NORMAL; |
259 | } |
260 | |
261 | PP(pp_or) |
262 | { |
263 | dSP; |
264 | if (SvTRUE(TOPs)) |
265 | RETURN; |
266 | else { |
267 | --SP; |
268 | RETURNOP(cLOGOP->op_other); |
269 | } |
270 | } |
271 | |
272 | PP(pp_add) |
273 | { |
274 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
275 | { |
7a4c00b4 |
276 | dPOPTOPnnrl_ul; |
a0d0e21e |
277 | SETn( left + right ); |
278 | RETURN; |
279 | } |
280 | } |
281 | |
282 | PP(pp_aelemfast) |
283 | { |
284 | dSP; |
285 | AV *av = GvAV((GV*)cSVOP->op_sv); |
286 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
287 | PUSHs(svp ? *svp : &sv_undef); |
288 | RETURN; |
289 | } |
290 | |
291 | PP(pp_join) |
292 | { |
293 | dSP; dMARK; dTARGET; |
294 | MARK++; |
295 | do_join(TARG, *MARK, MARK, SP); |
296 | SP = MARK; |
297 | SETs(TARG); |
298 | RETURN; |
299 | } |
300 | |
301 | PP(pp_pushre) |
302 | { |
303 | dSP; |
44a8e56a |
304 | #ifdef DEBUGGING |
305 | /* |
306 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
307 | * will be enough to hold an OP*. |
308 | */ |
309 | SV* sv = sv_newmortal(); |
310 | sv_upgrade(sv, SVt_PVLV); |
311 | LvTYPE(sv) = '/'; |
312 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
313 | XPUSHs(sv); |
314 | #else |
a0d0e21e |
315 | XPUSHs((SV*)op); |
44a8e56a |
316 | #endif |
a0d0e21e |
317 | RETURN; |
318 | } |
319 | |
320 | /* Oversized hot code. */ |
321 | |
322 | PP(pp_print) |
323 | { |
324 | dSP; dMARK; dORIGMARK; |
325 | GV *gv; |
326 | IO *io; |
760ac839 |
327 | register PerlIO *fp; |
236988e4 |
328 | MAGIC *mg; |
a0d0e21e |
329 | |
330 | if (op->op_flags & OPf_STACKED) |
331 | gv = (GV*)*++MARK; |
332 | else |
333 | gv = defoutgv; |
236988e4 |
334 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
68dc0745 |
335 | if (MARK == ORIGMARK) { |
336 | EXTEND(SP, 1); |
337 | ++MARK; |
338 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
339 | ++SP; |
340 | } |
341 | PUSHMARK(MARK - 1); |
236988e4 |
342 | *MARK = mg->mg_obj; |
68dc0745 |
343 | PUTBACK; |
236988e4 |
344 | ENTER; |
345 | perl_call_method("PRINT", G_SCALAR); |
346 | LEAVE; |
347 | SPAGAIN; |
68dc0745 |
348 | MARK = ORIGMARK + 1; |
349 | *MARK = *SP; |
350 | SP = MARK; |
236988e4 |
351 | RETURN; |
352 | } |
a0d0e21e |
353 | if (!(io = GvIO(gv))) { |
748a9306 |
354 | if (dowarn) { |
355 | SV* sv = sv_newmortal(); |
4f732624 |
356 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
357 | warn("Filehandle %s never opened", SvPV(sv,na)); |
358 | } |
359 | |
360 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
361 | goto just_say_no; |
362 | } |
363 | else if (!(fp = IoOFP(io))) { |
364 | if (dowarn) { |
748a9306 |
365 | SV* sv = sv_newmortal(); |
4f732624 |
366 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
367 | if (IoIFP(io)) |
748a9306 |
368 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
369 | else |
748a9306 |
370 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
371 | } |
748a9306 |
372 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
373 | goto just_say_no; |
374 | } |
375 | else { |
376 | MARK++; |
377 | if (ofslen) { |
378 | while (MARK <= SP) { |
379 | if (!do_print(*MARK, fp)) |
380 | break; |
381 | MARK++; |
382 | if (MARK <= SP) { |
760ac839 |
383 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
384 | MARK--; |
385 | break; |
386 | } |
387 | } |
388 | } |
389 | } |
390 | else { |
391 | while (MARK <= SP) { |
392 | if (!do_print(*MARK, fp)) |
393 | break; |
394 | MARK++; |
395 | } |
396 | } |
397 | if (MARK <= SP) |
398 | goto just_say_no; |
399 | else { |
400 | if (orslen) |
760ac839 |
401 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
402 | goto just_say_no; |
403 | |
404 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
405 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
406 | goto just_say_no; |
407 | } |
408 | } |
409 | SP = ORIGMARK; |
410 | PUSHs(&sv_yes); |
411 | RETURN; |
412 | |
413 | just_say_no: |
414 | SP = ORIGMARK; |
415 | PUSHs(&sv_undef); |
416 | RETURN; |
417 | } |
418 | |
419 | PP(pp_rv2av) |
420 | { |
421 | dSP; dPOPss; |
a0d0e21e |
422 | AV *av; |
423 | |
424 | if (SvROK(sv)) { |
425 | wasref: |
426 | av = (AV*)SvRV(sv); |
427 | if (SvTYPE(av) != SVt_PVAV) |
428 | DIE("Not an ARRAY reference"); |
429 | if (op->op_private & OPpLVAL_INTRO) |
430 | av = (AV*)save_svref((SV**)sv); |
431 | if (op->op_flags & OPf_REF) { |
432 | PUSHs((SV*)av); |
433 | RETURN; |
434 | } |
435 | } |
436 | else { |
437 | if (SvTYPE(sv) == SVt_PVAV) { |
438 | av = (AV*)sv; |
439 | if (op->op_flags & OPf_REF) { |
440 | PUSHs((SV*)av); |
441 | RETURN; |
442 | } |
443 | } |
444 | else { |
67955e0c |
445 | GV *gv; |
446 | |
a0d0e21e |
447 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
448 | char *sym; |
449 | |
a0d0e21e |
450 | if (SvGMAGICAL(sv)) { |
451 | mg_get(sv); |
452 | if (SvROK(sv)) |
453 | goto wasref; |
454 | } |
455 | if (!SvOK(sv)) { |
456 | if (op->op_flags & OPf_REF || |
457 | op->op_private & HINT_STRICT_REFS) |
458 | DIE(no_usym, "an ARRAY"); |
d83e6520 |
459 | if (dowarn) |
460 | warn(warn_uninit); |
4633a7c4 |
461 | if (GIMME == G_ARRAY) |
462 | RETURN; |
a0d0e21e |
463 | RETPUSHUNDEF; |
464 | } |
748a9306 |
465 | sym = SvPV(sv,na); |
a0d0e21e |
466 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
467 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
468 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
469 | } else { |
470 | gv = (GV*)sv; |
a0d0e21e |
471 | } |
67955e0c |
472 | av = GvAVn(gv); |
a0d0e21e |
473 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
474 | av = save_ary(gv); |
a0d0e21e |
475 | if (op->op_flags & OPf_REF) { |
476 | PUSHs((SV*)av); |
477 | RETURN; |
478 | } |
479 | } |
480 | } |
481 | |
482 | if (GIMME == G_ARRAY) { |
483 | I32 maxarg = AvFILL(av) + 1; |
484 | EXTEND(SP, maxarg); |
485 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
486 | SP += maxarg; |
487 | } |
488 | else { |
489 | dTARGET; |
490 | I32 maxarg = AvFILL(av) + 1; |
491 | PUSHi(maxarg); |
492 | } |
493 | RETURN; |
494 | } |
495 | |
496 | PP(pp_rv2hv) |
497 | { |
a0d0e21e |
498 | dSP; dTOPss; |
a0d0e21e |
499 | HV *hv; |
500 | |
501 | if (SvROK(sv)) { |
502 | wasref: |
503 | hv = (HV*)SvRV(sv); |
504 | if (SvTYPE(hv) != SVt_PVHV) |
505 | DIE("Not a HASH reference"); |
506 | if (op->op_private & OPpLVAL_INTRO) |
507 | hv = (HV*)save_svref((SV**)sv); |
508 | if (op->op_flags & OPf_REF) { |
509 | SETs((SV*)hv); |
510 | RETURN; |
511 | } |
512 | } |
513 | else { |
514 | if (SvTYPE(sv) == SVt_PVHV) { |
515 | hv = (HV*)sv; |
516 | if (op->op_flags & OPf_REF) { |
517 | SETs((SV*)hv); |
518 | RETURN; |
519 | } |
520 | } |
521 | else { |
67955e0c |
522 | GV *gv; |
523 | |
a0d0e21e |
524 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
525 | char *sym; |
526 | |
a0d0e21e |
527 | if (SvGMAGICAL(sv)) { |
528 | mg_get(sv); |
529 | if (SvROK(sv)) |
530 | goto wasref; |
531 | } |
532 | if (!SvOK(sv)) { |
533 | if (op->op_flags & OPf_REF || |
534 | op->op_private & HINT_STRICT_REFS) |
535 | DIE(no_usym, "a HASH"); |
d83e6520 |
536 | if (dowarn) |
537 | warn(warn_uninit); |
4633a7c4 |
538 | if (GIMME == G_ARRAY) { |
539 | SP--; |
540 | RETURN; |
541 | } |
a0d0e21e |
542 | RETSETUNDEF; |
543 | } |
748a9306 |
544 | sym = SvPV(sv,na); |
a0d0e21e |
545 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
546 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
547 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
548 | } else { |
549 | gv = (GV*)sv; |
a0d0e21e |
550 | } |
67955e0c |
551 | hv = GvHVn(gv); |
a0d0e21e |
552 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
553 | hv = save_hash(gv); |
a0d0e21e |
554 | if (op->op_flags & OPf_REF) { |
555 | SETs((SV*)hv); |
556 | RETURN; |
557 | } |
558 | } |
559 | } |
560 | |
561 | if (GIMME == G_ARRAY) { /* array wanted */ |
562 | *stack_sp = (SV*)hv; |
563 | return do_kv(ARGS); |
564 | } |
565 | else { |
566 | dTARGET; |
567 | if (HvFILL(hv)) { |
9607fc9c |
568 | sprintf(buf, "%ld/%ld", (long)HvFILL(hv), (long)HvMAX(hv)+1); |
a0d0e21e |
569 | sv_setpv(TARG, buf); |
570 | } |
571 | else |
572 | sv_setiv(TARG, 0); |
573 | SETTARG; |
574 | RETURN; |
575 | } |
576 | } |
577 | |
578 | PP(pp_aassign) |
579 | { |
580 | dSP; |
581 | SV **lastlelem = stack_sp; |
582 | SV **lastrelem = stack_base + POPMARK; |
583 | SV **firstrelem = stack_base + POPMARK + 1; |
584 | SV **firstlelem = lastrelem + 1; |
585 | |
586 | register SV **relem; |
587 | register SV **lelem; |
588 | |
589 | register SV *sv; |
590 | register AV *ary; |
591 | |
54310121 |
592 | I32 gimme; |
a0d0e21e |
593 | HV *hash; |
594 | I32 i; |
595 | int magic; |
596 | |
597 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
598 | |
599 | /* If there's a common identifier on both sides we have to take |
600 | * special care that assigning the identifier on the left doesn't |
601 | * clobber a value on the right that's used later in the list. |
602 | */ |
603 | if (op->op_private & OPpASSIGN_COMMON) { |
604 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
605 | /*SUPPRESS 560*/ |
606 | if (sv = *relem) |
607 | *relem = sv_mortalcopy(sv); |
608 | } |
609 | } |
610 | |
611 | relem = firstrelem; |
612 | lelem = firstlelem; |
613 | ary = Null(AV*); |
614 | hash = Null(HV*); |
615 | while (lelem <= lastlelem) { |
bbce6d69 |
616 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
617 | sv = *lelem++; |
618 | switch (SvTYPE(sv)) { |
619 | case SVt_PVAV: |
620 | ary = (AV*)sv; |
748a9306 |
621 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
622 | |
623 | av_clear(ary); |
7e42bd57 |
624 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
625 | i = 0; |
626 | while (relem <= lastrelem) { /* gobble up all the rest */ |
627 | sv = NEWSV(28,0); |
628 | assert(*relem); |
629 | sv_setsv(sv,*relem); |
630 | *(relem++) = sv; |
631 | (void)av_store(ary,i++,sv); |
632 | if (magic) |
633 | mg_set(sv); |
bbce6d69 |
634 | TAINT_NOT; |
a0d0e21e |
635 | } |
636 | break; |
637 | case SVt_PVHV: { |
a0d0e21e |
638 | SV *tmpstr; |
639 | |
640 | hash = (HV*)sv; |
748a9306 |
641 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
642 | hv_clear(hash); |
643 | |
644 | while (relem < lastrelem) { /* gobble up all the rest */ |
645 | STRLEN len; |
4633a7c4 |
646 | if (*relem) |
a0d0e21e |
647 | sv = *(relem++); |
4633a7c4 |
648 | else |
a0d0e21e |
649 | sv = &sv_no, relem++; |
a0d0e21e |
650 | tmpstr = NEWSV(29,0); |
651 | if (*relem) |
652 | sv_setsv(tmpstr,*relem); /* value */ |
653 | *(relem++) = tmpstr; |
760ac839 |
654 | (void)hv_store_ent(hash,sv,tmpstr,0); |
a0d0e21e |
655 | if (magic) |
656 | mg_set(tmpstr); |
bbce6d69 |
657 | TAINT_NOT; |
8e07c86e |
658 | } |
760ac839 |
659 | if (relem == lastrelem) |
660 | warn("Odd number of elements in hash list"); |
a0d0e21e |
661 | } |
662 | break; |
663 | default: |
664 | if (SvTHINKFIRST(sv)) { |
665 | if (SvREADONLY(sv) && curcop != &compiling) { |
666 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
667 | DIE(no_modify); |
668 | if (relem <= lastrelem) |
669 | relem++; |
670 | break; |
671 | } |
672 | if (SvROK(sv)) |
673 | sv_unref(sv); |
674 | } |
675 | if (relem <= lastrelem) { |
676 | sv_setsv(sv, *relem); |
677 | *(relem++) = sv; |
678 | } |
679 | else |
680 | sv_setsv(sv, &sv_undef); |
681 | SvSETMAGIC(sv); |
682 | break; |
683 | } |
684 | } |
685 | if (delaymagic & ~DM_DELAY) { |
686 | if (delaymagic & DM_UID) { |
687 | #ifdef HAS_SETRESUID |
688 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
689 | #else |
690 | # ifdef HAS_SETREUID |
a0d0e21e |
691 | (void)setreuid(uid,euid); |
56febc5e |
692 | # else |
693 | # ifdef HAS_SETRUID |
a0d0e21e |
694 | if ((delaymagic & DM_UID) == DM_RUID) { |
695 | (void)setruid(uid); |
748a9306 |
696 | delaymagic &= ~DM_RUID; |
a0d0e21e |
697 | } |
56febc5e |
698 | # endif /* HAS_SETRUID */ |
699 | # ifdef HAS_SETEUID |
a0d0e21e |
700 | if ((delaymagic & DM_UID) == DM_EUID) { |
701 | (void)seteuid(uid); |
748a9306 |
702 | delaymagic &= ~DM_EUID; |
a0d0e21e |
703 | } |
56febc5e |
704 | # endif /* HAS_SETEUID */ |
a0d0e21e |
705 | if (delaymagic & DM_UID) { |
706 | if (uid != euid) |
707 | DIE("No setreuid available"); |
708 | (void)setuid(uid); |
709 | } |
56febc5e |
710 | # endif /* HAS_SETREUID */ |
711 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
712 | uid = (int)getuid(); |
713 | euid = (int)geteuid(); |
714 | } |
715 | if (delaymagic & DM_GID) { |
716 | #ifdef HAS_SETRESGID |
717 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
718 | #else |
719 | # ifdef HAS_SETREGID |
a0d0e21e |
720 | (void)setregid(gid,egid); |
56febc5e |
721 | # else |
722 | # ifdef HAS_SETRGID |
a0d0e21e |
723 | if ((delaymagic & DM_GID) == DM_RGID) { |
724 | (void)setrgid(gid); |
748a9306 |
725 | delaymagic &= ~DM_RGID; |
a0d0e21e |
726 | } |
56febc5e |
727 | # endif /* HAS_SETRGID */ |
728 | # ifdef HAS_SETEGID |
a0d0e21e |
729 | if ((delaymagic & DM_GID) == DM_EGID) { |
730 | (void)setegid(gid); |
748a9306 |
731 | delaymagic &= ~DM_EGID; |
a0d0e21e |
732 | } |
56febc5e |
733 | # endif /* HAS_SETEGID */ |
a0d0e21e |
734 | if (delaymagic & DM_GID) { |
735 | if (gid != egid) |
736 | DIE("No setregid available"); |
737 | (void)setgid(gid); |
738 | } |
56febc5e |
739 | # endif /* HAS_SETREGID */ |
740 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
741 | gid = (int)getgid(); |
742 | egid = (int)getegid(); |
743 | } |
4633a7c4 |
744 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
745 | } |
746 | delaymagic = 0; |
54310121 |
747 | |
748 | gimme = GIMME_V; |
749 | if (gimme == G_VOID) |
750 | SP = firstrelem - 1; |
751 | else if (gimme == G_SCALAR) { |
752 | dTARGET; |
753 | SP = firstrelem; |
754 | SETi(lastrelem - firstrelem + 1); |
755 | } |
756 | else { |
a0d0e21e |
757 | if (ary || hash) |
758 | SP = lastrelem; |
759 | else |
760 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
761 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
762 | while (relem <= SP) |
0c8c7a05 |
763 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
764 | } |
54310121 |
765 | RETURN; |
a0d0e21e |
766 | } |
767 | |
768 | PP(pp_match) |
769 | { |
770 | dSP; dTARG; |
771 | register PMOP *pm = cPMOP; |
772 | register char *t; |
773 | register char *s; |
774 | char *strend; |
775 | I32 global; |
776 | I32 safebase; |
777 | char *truebase; |
778 | register REGEXP *rx = pm->op_pmregexp; |
779 | I32 gimme = GIMME; |
780 | STRLEN len; |
748a9306 |
781 | I32 minmatch = 0; |
4633a7c4 |
782 | I32 oldsave = savestack_ix; |
f86702cc |
783 | I32 update_minmatch = 1; |
a0d0e21e |
784 | |
785 | if (op->op_flags & OPf_STACKED) |
786 | TARG = POPs; |
787 | else { |
788 | TARG = GvSV(defgv); |
789 | EXTEND(SP,1); |
790 | } |
791 | s = SvPV(TARG, len); |
792 | strend = s + len; |
793 | if (!s) |
794 | DIE("panic: do_match"); |
9212bbba |
795 | TAINT_NOT; |
a0d0e21e |
796 | |
797 | if (pm->op_pmflags & PMf_USED) { |
798 | if (gimme == G_ARRAY) |
799 | RETURN; |
800 | RETPUSHNO; |
801 | } |
802 | |
803 | if (!rx->prelen && curpm) { |
804 | pm = curpm; |
805 | rx = pm->op_pmregexp; |
806 | } |
807 | truebase = t = s; |
808 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
809 | rx->startp[0] = 0; |
810 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
811 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
812 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
813 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
814 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
815 | update_minmatch = 0; |
748a9306 |
816 | } |
a0d0e21e |
817 | } |
818 | } |
748a9306 |
819 | if (!rx->nparens && !global) |
820 | gimme = G_SCALAR; /* accidental array context? */ |
137443ea |
821 | safebase = (((gimme == G_ARRAY) || global || !rx->nparens) |
822 | && !sawampersand); |
a0d0e21e |
823 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
824 | SAVEINT(multiline); |
825 | multiline = pm->op_pmflags & PMf_MULTILINE; |
826 | } |
827 | |
828 | play_it_again: |
829 | if (global && rx->startp[0]) { |
830 | t = s = rx->endp[0]; |
51aa1f50 |
831 | if ((s + rx->minlen) > strend) |
a0d0e21e |
832 | goto nope; |
f86702cc |
833 | if (update_minmatch++) |
834 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
835 | } |
836 | if (pm->op_pmshort) { |
837 | if (pm->op_pmflags & PMf_SCANFIRST) { |
838 | if (SvSCREAM(TARG)) { |
839 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
840 | goto nope; |
841 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
842 | goto nope; |
843 | else if (pm->op_pmflags & PMf_ALL) |
844 | goto yup; |
845 | } |
846 | else if (!(s = fbm_instr((unsigned char*)s, |
847 | (unsigned char*)strend, pm->op_pmshort))) |
848 | goto nope; |
849 | else if (pm->op_pmflags & PMf_ALL) |
850 | goto yup; |
851 | if (s && rx->regback >= 0) { |
852 | ++BmUSEFUL(pm->op_pmshort); |
853 | s -= rx->regback; |
854 | if (s < t) |
855 | s = t; |
856 | } |
857 | else |
858 | s = t; |
859 | } |
860 | else if (!multiline) { |
bbce6d69 |
861 | if (*SvPVX(pm->op_pmshort) != *s |
862 | || (pm->op_pmslen > 1 |
36477c24 |
863 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
864 | goto nope; |
a0d0e21e |
865 | } |
866 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
867 | SvREFCNT_dec(pm->op_pmshort); |
868 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
869 | } |
870 | } |
e50aee73 |
871 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 |
872 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
873 | { |
a0d0e21e |
874 | curpm = pm; |
875 | if (pm->op_pmflags & PMf_ONCE) |
876 | pm->op_pmflags |= PMf_USED; |
877 | goto gotcha; |
878 | } |
879 | else |
880 | goto ret_no; |
881 | /*NOTREACHED*/ |
882 | |
883 | gotcha: |
9212bbba |
884 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
885 | if (gimme == G_ARRAY) { |
886 | I32 iters, i, len; |
887 | |
888 | iters = rx->nparens; |
889 | if (global && !iters) |
890 | i = 1; |
891 | else |
892 | i = 0; |
893 | EXTEND(SP, iters + i); |
bbce6d69 |
894 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
895 | for (i = !i; i <= iters; i++) { |
896 | PUSHs(sv_newmortal()); |
897 | /*SUPPRESS 560*/ |
898 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
899 | len = rx->endp[i] - s; |
900 | sv_setpvn(*SP, s, len); |
901 | } |
902 | } |
903 | if (global) { |
904 | truebase = rx->subbeg; |
5f05dabc |
905 | strend = rx->subend; |
a0d0e21e |
906 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
907 | ++rx->endp[0]; |
908 | goto play_it_again; |
909 | } |
4633a7c4 |
910 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
911 | RETURN; |
912 | } |
913 | else { |
914 | if (global) { |
915 | MAGIC* mg = 0; |
916 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
917 | mg = mg_find(TARG, 'g'); |
918 | if (!mg) { |
919 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
920 | mg = mg_find(TARG, 'g'); |
921 | } |
748a9306 |
922 | if (rx->startp[0]) { |
5f05dabc |
923 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
924 | if (rx->startp[0] == rx->endp[0]) |
925 | mg->mg_flags |= MGf_MINMATCH; |
926 | else |
927 | mg->mg_flags &= ~MGf_MINMATCH; |
928 | } |
a0d0e21e |
929 | } |
4633a7c4 |
930 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
931 | RETPUSHYES; |
932 | } |
933 | |
934 | yup: |
9212bbba |
935 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
936 | ++BmUSEFUL(pm->op_pmshort); |
937 | curpm = pm; |
938 | if (pm->op_pmflags & PMf_ONCE) |
939 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
940 | Safefree(rx->subbase); |
941 | rx->subbase = Nullch; |
a0d0e21e |
942 | if (global) { |
943 | rx->subbeg = truebase; |
944 | rx->subend = strend; |
945 | rx->startp[0] = s; |
946 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
947 | goto gotcha; |
948 | } |
949 | if (sawampersand) { |
950 | char *tmps; |
951 | |
a0d0e21e |
952 | tmps = rx->subbase = savepvn(t, strend-t); |
953 | rx->subbeg = tmps; |
954 | rx->subend = tmps + (strend-t); |
955 | tmps = rx->startp[0] = tmps + (s - t); |
956 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
957 | } |
4633a7c4 |
958 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
959 | RETPUSHYES; |
960 | |
961 | nope: |
962 | if (pm->op_pmshort) |
963 | ++BmUSEFUL(pm->op_pmshort); |
964 | |
965 | ret_no: |
4633a7c4 |
966 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
967 | if (gimme == G_ARRAY) |
968 | RETURN; |
969 | RETPUSHNO; |
970 | } |
971 | |
972 | OP * |
973 | do_readline() |
974 | { |
975 | dSP; dTARGETSTACKED; |
976 | register SV *sv; |
977 | STRLEN tmplen = 0; |
978 | STRLEN offset; |
760ac839 |
979 | PerlIO *fp; |
a0d0e21e |
980 | register IO *io = GvIO(last_in_gv); |
981 | register I32 type = op->op_type; |
54310121 |
982 | I32 gimme = GIMME_V; |
e79b0511 |
983 | MAGIC *mg; |
a0d0e21e |
984 | |
e79b0511 |
985 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
986 | PUSHMARK(SP); |
987 | XPUSHs(mg->mg_obj); |
988 | PUTBACK; |
989 | ENTER; |
54310121 |
990 | perl_call_method("READLINE", gimme); |
e79b0511 |
991 | LEAVE; |
992 | SPAGAIN; |
54310121 |
993 | if (gimme == G_SCALAR) |
994 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
995 | RETURN; |
996 | } |
a0d0e21e |
997 | fp = Nullfp; |
998 | if (io) { |
999 | fp = IoIFP(io); |
1000 | if (!fp) { |
1001 | if (IoFLAGS(io) & IOf_ARGV) { |
1002 | if (IoFLAGS(io) & IOf_START) { |
1003 | IoFLAGS(io) &= ~IOf_START; |
1004 | IoLINES(io) = 0; |
1005 | if (av_len(GvAVn(last_in_gv)) < 0) { |
1006 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
1007 | av_push(GvAVn(last_in_gv), tmpstr); |
1008 | } |
1009 | } |
1010 | fp = nextargv(last_in_gv); |
1011 | if (!fp) { /* Note: fp != IoIFP(io) */ |
1012 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
1013 | IoFLAGS(io) |= IOf_START; |
1014 | } |
1015 | } |
1016 | else if (type == OP_GLOB) { |
1017 | SV *tmpcmd = NEWSV(55, 0); |
1018 | SV *tmpglob = POPs; |
1019 | ENTER; |
1020 | SAVEFREESV(tmpcmd); |
1021 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1022 | /* since spawning off a process is a real performance hit */ |
1023 | { |
1024 | #include <descrip.h> |
1025 | #include <lib$routines.h> |
1026 | #include <nam.h> |
1027 | #include <rmsdef.h> |
1028 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1029 | char vmsspec[NAM$C_MAXRSS+1]; |
1030 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1031 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1032 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1033 | PerlIO *tmpfp; |
a0d0e21e |
1034 | STRLEN i; |
1035 | struct dsc$descriptor_s wilddsc |
1036 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1037 | struct dsc$descriptor_vs rsdsc |
1038 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1039 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1040 | |
1041 | /* We could find out if there's an explicit dev/dir or version |
1042 | by peeking into lib$find_file's internal context at |
1043 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1044 | but that's unsupported, so I don't want to do it now and |
1045 | have it bite someone in the future. */ |
1046 | strcat(tmpfnam,tmpnam(NULL)); |
1047 | cp = SvPV(tmpglob,i); |
1048 | for (; i; i--) { |
1049 | if (cp[i] == ';') hasver = 1; |
1050 | if (cp[i] == '.') { |
1051 | if (sts) hasver = 1; |
1052 | else sts = 1; |
1053 | } |
1054 | if (cp[i] == '/') { |
1055 | hasdir = isunix = 1; |
1056 | break; |
748a9306 |
1057 | } |
a0d0e21e |
1058 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1059 | hasdir = 1; |
1060 | break; |
1061 | } |
1062 | } |
760ac839 |
1063 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1064 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1065 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1066 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1067 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1068 | end = rstr + (unsigned long int) *rslt; |
1069 | if (!hasver) while (*end != ';') end--; |
1070 | *(end++) = '\n'; *end = '\0'; |
1071 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1072 | if (hasdir) { |
f86702cc |
1073 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1074 | begin = rstr; |
1075 | } |
1076 | else { |
1077 | begin = end; |
1078 | while (*(--begin) != ']' && *begin != '>') ; |
1079 | ++begin; |
1080 | } |
760ac839 |
1081 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1082 | } |
1083 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1084 | if (ok && sts != RMS$_NMF && |
1085 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1086 | if (!ok) { |
c07a80fd |
1087 | if (!(sts & 1)) { |
1088 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1089 | } |
760ac839 |
1090 | PerlIO_close(tmpfp); |
a0d0e21e |
1091 | fp = NULL; |
1092 | } |
1093 | else { |
760ac839 |
1094 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1095 | IoTYPE(io) = '<'; |
1096 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1097 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1098 | } |
1099 | } |
1100 | } |
1101 | #else /* !VMS */ |
1102 | #ifdef DOSISH |
67955e0c |
1103 | #ifdef OS2 |
1104 | sv_setpv(tmpcmd, "for a in "); |
1105 | sv_catsv(tmpcmd, tmpglob); |
1106 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1107 | #else |
a0d0e21e |
1108 | sv_setpv(tmpcmd, "perlglob "); |
1109 | sv_catsv(tmpcmd, tmpglob); |
1110 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1111 | #endif /* !OS2 */ |
1112 | #else /* !DOSISH */ |
1113 | #if defined(CSH) |
a0d0e21e |
1114 | sv_setpvn(tmpcmd, cshname, cshlen); |
1115 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1116 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1117 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1118 | #else |
1119 | sv_setpv(tmpcmd, "echo "); |
1120 | sv_catsv(tmpcmd, tmpglob); |
1121 | #if 'z' - 'a' == 25 |
1122 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1123 | #else |
1124 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1125 | #endif |
1126 | #endif /* !CSH */ |
67955e0c |
1127 | #endif /* !DOSISH */ |
c07a80fd |
1128 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1129 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1130 | fp = IoIFP(io); |
1131 | #endif /* !VMS */ |
1132 | LEAVE; |
1133 | } |
1134 | } |
1135 | else if (type == OP_GLOB) |
1136 | SP--; |
1137 | } |
1138 | if (!fp) { |
4633a7c4 |
1139 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1140 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
54310121 |
1141 | if (gimme == G_SCALAR) { |
a0d0e21e |
1142 | (void)SvOK_off(TARG); |
1143 | PUSHTARG; |
1144 | } |
1145 | RETURN; |
1146 | } |
54310121 |
1147 | if (gimme == G_SCALAR) { |
a0d0e21e |
1148 | sv = TARG; |
9607fc9c |
1149 | if (SvROK(sv)) |
1150 | sv_unref(sv); |
a0d0e21e |
1151 | (void)SvUPGRADE(sv, SVt_PV); |
1152 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1153 | if (!tmplen) |
1154 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1155 | if (type == OP_RCATLINE) |
1156 | offset = SvCUR(sv); |
1157 | else |
1158 | offset = 0; |
1159 | } |
54310121 |
1160 | else { |
1161 | sv = sv_2mortal(NEWSV(57, 80)); |
1162 | offset = 0; |
1163 | } |
a0d0e21e |
1164 | for (;;) { |
1165 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1166 | PerlIO_clearerr(fp); |
a0d0e21e |
1167 | if (IoFLAGS(io) & IOf_ARGV) { |
1168 | fp = nextargv(last_in_gv); |
1169 | if (fp) |
1170 | continue; |
1171 | (void)do_close(last_in_gv, FALSE); |
1172 | IoFLAGS(io) |= IOf_START; |
1173 | } |
1174 | else if (type == OP_GLOB) { |
5cd24f17 |
1175 | if (do_close(last_in_gv, FALSE) & ~0xFF) |
1176 | warn("internal error: glob failed"); |
a0d0e21e |
1177 | } |
54310121 |
1178 | if (gimme == G_SCALAR) { |
a0d0e21e |
1179 | (void)SvOK_off(TARG); |
1180 | PUSHTARG; |
1181 | } |
1182 | RETURN; |
1183 | } |
bbce6d69 |
1184 | /* This should not be marked tainted if the fp is marked clean */ |
1185 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1186 | TAINT; |
1187 | SvTAINTED_on(sv); |
1188 | } |
a0d0e21e |
1189 | IoLINES(io)++; |
71be2cbc |
1190 | SvSETMAGIC(sv); |
a0d0e21e |
1191 | XPUSHs(sv); |
a0d0e21e |
1192 | if (type == OP_GLOB) { |
1193 | char *tmps; |
1194 | |
c07a80fd |
1195 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1196 | tmps = SvEND(sv) - 1; |
1197 | if (*tmps == *SvPVX(rs)) { |
1198 | *tmps = '\0'; |
1199 | SvCUR(sv)--; |
1200 | } |
1201 | } |
a0d0e21e |
1202 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1203 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1204 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1205 | break; |
1206 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1207 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1208 | continue; |
1209 | } |
1210 | } |
54310121 |
1211 | if (gimme == G_ARRAY) { |
a0d0e21e |
1212 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1213 | SvLEN_set(sv, SvCUR(sv)+1); |
1214 | Renew(SvPVX(sv), SvLEN(sv), char); |
1215 | } |
1216 | sv = sv_2mortal(NEWSV(58, 80)); |
1217 | continue; |
1218 | } |
54310121 |
1219 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1220 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1221 | if (SvCUR(sv) < 60) |
1222 | SvLEN_set(sv, 80); |
1223 | else |
1224 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1225 | Renew(SvPVX(sv), SvLEN(sv), char); |
1226 | } |
1227 | RETURN; |
1228 | } |
1229 | } |
1230 | |
1231 | PP(pp_enter) |
1232 | { |
1233 | dSP; |
1234 | register CONTEXT *cx; |
54310121 |
1235 | I32 gimme = OP_GIMME(op, -1); |
a0d0e21e |
1236 | |
54310121 |
1237 | if (gimme == -1) { |
1238 | if (cxstack_ix >= 0) |
1239 | gimme = cxstack[cxstack_ix].blk_gimme; |
1240 | else |
1241 | gimme = G_SCALAR; |
1242 | } |
a0d0e21e |
1243 | |
1244 | ENTER; |
1245 | |
1246 | SAVETMPS; |
1247 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1248 | |
1249 | RETURN; |
1250 | } |
1251 | |
1252 | PP(pp_helem) |
1253 | { |
1254 | dSP; |
760ac839 |
1255 | HE* he; |
a0d0e21e |
1256 | SV *keysv = POPs; |
a0d0e21e |
1257 | HV *hv = (HV*)POPs; |
68dc0745 |
1258 | U32 lval = op->op_flags & OPf_MOD; |
1259 | U32 defer = op->op_private & OPpLVAL_DEFER; |
a0d0e21e |
1260 | |
1261 | if (SvTYPE(hv) != SVt_PVHV) |
1262 | RETPUSHUNDEF; |
68dc0745 |
1263 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
a0d0e21e |
1264 | if (lval) { |
68dc0745 |
1265 | if (!he || HeVAL(he) == &sv_undef) { |
1266 | SV* lv; |
1267 | SV* key2; |
1268 | if (!defer) |
1269 | DIE(no_helem, SvPV(keysv, na)); |
1270 | lv = sv_newmortal(); |
1271 | sv_upgrade(lv, SVt_PVLV); |
1272 | LvTYPE(lv) = 'y'; |
1273 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1274 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1275 | LvTARG(lv) = SvREFCNT_inc(hv); |
1276 | LvTARGLEN(lv) = 1; |
1277 | PUSHs(lv); |
1278 | RETURN; |
1279 | } |
5f05dabc |
1280 | if (op->op_private & OPpLVAL_INTRO) { |
1281 | if (HvNAME(hv) && isGV(HeVAL(he))) |
1282 | save_gp((GV*)HeVAL(he), !(op->op_flags & OPf_SPECIAL)); |
1283 | else |
1284 | save_svref(&HeVAL(he)); |
1285 | } |
1286 | else if (op->op_private & OPpDEREF) |
68dc0745 |
1287 | vivify_ref(HeVAL(he), op->op_private & OPpDEREF); |
a0d0e21e |
1288 | } |
760ac839 |
1289 | PUSHs(he ? HeVAL(he) : &sv_undef); |
a0d0e21e |
1290 | RETURN; |
1291 | } |
1292 | |
1293 | PP(pp_leave) |
1294 | { |
1295 | dSP; |
1296 | register CONTEXT *cx; |
1297 | register SV **mark; |
1298 | SV **newsp; |
1299 | PMOP *newpm; |
1300 | I32 gimme; |
1301 | |
1302 | if (op->op_flags & OPf_SPECIAL) { |
1303 | cx = &cxstack[cxstack_ix]; |
1304 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1305 | } |
1306 | |
1307 | POPBLOCK(cx,newpm); |
1308 | |
54310121 |
1309 | gimme = OP_GIMME(op, -1); |
1310 | if (gimme == -1) { |
1311 | if (cxstack_ix >= 0) |
1312 | gimme = cxstack[cxstack_ix].blk_gimme; |
1313 | else |
1314 | gimme = G_SCALAR; |
1315 | } |
a0d0e21e |
1316 | |
54310121 |
1317 | if (gimme == G_VOID) |
1318 | SP = newsp; |
1319 | else if (gimme == G_SCALAR) { |
1320 | MARK = newsp + 1; |
1321 | if (MARK <= SP) |
1322 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1323 | *MARK = TOPs; |
1324 | else |
1325 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1326 | else { |
54310121 |
1327 | MEXTEND(mark,0); |
1328 | *MARK = &sv_undef; |
a0d0e21e |
1329 | } |
54310121 |
1330 | SP = MARK; |
a0d0e21e |
1331 | } |
54310121 |
1332 | else if (gimme == G_ARRAY) { |
a0d0e21e |
1333 | for (mark = newsp + 1; mark <= SP; mark++) |
1334 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
1335 | *mark = sv_mortalcopy(*mark); |
1336 | /* in case LEAVE wipes old return values */ |
1337 | } |
1338 | curpm = newpm; /* Don't pop $1 et al till now */ |
1339 | |
1340 | LEAVE; |
1341 | |
1342 | RETURN; |
1343 | } |
1344 | |
1345 | PP(pp_iter) |
1346 | { |
1347 | dSP; |
1348 | register CONTEXT *cx; |
5f05dabc |
1349 | SV* sv; |
4633a7c4 |
1350 | AV* av; |
a0d0e21e |
1351 | |
1352 | EXTEND(sp, 1); |
1353 | cx = &cxstack[cxstack_ix]; |
1354 | if (cx->cx_type != CXt_LOOP) |
1355 | DIE("panic: pp_iter"); |
1356 | |
71be2cbc |
1357 | av = cx->blk_loop.iterary; |
1358 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
a0d0e21e |
1359 | RETPUSHNO; |
1360 | |
7a4c00b4 |
1361 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1362 | |
5f05dabc |
1363 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1364 | SvTEMP_off(sv); |
a0d0e21e |
1365 | else |
5f05dabc |
1366 | sv = &sv_undef; |
1367 | if (av != curstack && SvIMMORTAL(sv)) { |
1368 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1369 | if (lv && SvREFCNT(lv) > 1) { |
1370 | SvREFCNT_dec(lv); |
1371 | lv = Nullsv; |
1372 | } |
5f05dabc |
1373 | if (lv) |
1374 | SvREFCNT_dec(LvTARG(lv)); |
1375 | else { |
68dc0745 |
1376 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1377 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1378 | LvTYPE(lv) = 'y'; |
68dc0745 |
1379 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1380 | } |
1381 | LvTARG(lv) = SvREFCNT_inc(av); |
1382 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
68dc0745 |
1383 | LvTARGLEN(lv) = -1; |
5f05dabc |
1384 | sv = (SV*)lv; |
1385 | } |
7a4c00b4 |
1386 | |
1387 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1388 | RETPUSHYES; |
1389 | } |
1390 | |
1391 | PP(pp_subst) |
1392 | { |
1393 | dSP; dTARG; |
1394 | register PMOP *pm = cPMOP; |
1395 | PMOP *rpm = pm; |
1396 | register SV *dstr; |
1397 | register char *s; |
1398 | char *strend; |
1399 | register char *m; |
1400 | char *c; |
1401 | register char *d; |
1402 | STRLEN clen; |
1403 | I32 iters = 0; |
1404 | I32 maxiters; |
1405 | register I32 i; |
1406 | bool once; |
71be2cbc |
1407 | bool rxtainted; |
a0d0e21e |
1408 | char *orig; |
1409 | I32 safebase; |
1410 | register REGEXP *rx = pm->op_pmregexp; |
1411 | STRLEN len; |
1412 | int force_on_match = 0; |
4633a7c4 |
1413 | I32 oldsave = savestack_ix; |
a0d0e21e |
1414 | |
5cd24f17 |
1415 | /* known replacement string? */ |
1416 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
a0d0e21e |
1417 | if (op->op_flags & OPf_STACKED) |
1418 | TARG = POPs; |
1419 | else { |
1420 | TARG = GvSV(defgv); |
1421 | EXTEND(SP,1); |
1422 | } |
68dc0745 |
1423 | if (SvREADONLY(TARG) |
1424 | || (SvTYPE(TARG) > SVt_PVLV |
1425 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
1426 | croak(no_modify); |
a0d0e21e |
1427 | s = SvPV(TARG, len); |
68dc0745 |
1428 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1429 | force_on_match = 1; |
9212bbba |
1430 | TAINT_NOT; |
a0d0e21e |
1431 | |
1432 | force_it: |
1433 | if (!pm || !s) |
1434 | DIE("panic: do_subst"); |
1435 | |
1436 | strend = s + len; |
1437 | maxiters = (strend - s) + 10; |
1438 | |
1439 | if (!rx->prelen && curpm) { |
1440 | pm = curpm; |
1441 | rx = pm->op_pmregexp; |
1442 | } |
5f05dabc |
1443 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e |
1444 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1445 | SAVEINT(multiline); |
1446 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1447 | } |
1448 | orig = m = s; |
1449 | if (pm->op_pmshort) { |
1450 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1451 | if (SvSCREAM(TARG)) { |
1452 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1453 | goto nope; |
1454 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1455 | goto nope; |
1456 | } |
1457 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1458 | pm->op_pmshort))) |
1459 | goto nope; |
1460 | if (s && rx->regback >= 0) { |
1461 | ++BmUSEFUL(pm->op_pmshort); |
1462 | s -= rx->regback; |
1463 | if (s < m) |
1464 | s = m; |
1465 | } |
1466 | else |
1467 | s = m; |
1468 | } |
1469 | else if (!multiline) { |
bbce6d69 |
1470 | if (*SvPVX(pm->op_pmshort) != *s |
1471 | || (pm->op_pmslen > 1 |
36477c24 |
1472 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
1473 | goto nope; |
a0d0e21e |
1474 | } |
1475 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1476 | SvREFCNT_dec(pm->op_pmshort); |
1477 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1478 | } |
1479 | } |
71be2cbc |
1480 | |
1481 | /* only replace once? */ |
a0d0e21e |
1482 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1483 | |
1484 | /* known replacement string? */ |
5cd24f17 |
1485 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1486 | |
1487 | /* can do inplace substitution? */ |
137443ea |
1488 | if (c && clen <= rx->minlen && safebase) { |
71be2cbc |
1489 | if (! pregexec(rx, s, strend, orig, 0, |
1490 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1491 | PUSHs(&sv_no); |
1492 | LEAVE_SCOPE(oldsave); |
1493 | RETURN; |
1494 | } |
1495 | if (force_on_match) { |
1496 | force_on_match = 0; |
1497 | s = SvPV_force(TARG, len); |
1498 | goto force_it; |
1499 | } |
71be2cbc |
1500 | d = s; |
1501 | curpm = pm; |
1502 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1503 | if (once) { |
1504 | rxtainted = rx->exec_tainted; |
1505 | m = rx->startp[0]; |
1506 | d = rx->endp[0]; |
1507 | s = orig; |
1508 | if (m - s > strend - d) { /* faster to shorten from end */ |
1509 | if (clen) { |
1510 | Copy(c, m, clen, char); |
1511 | m += clen; |
a0d0e21e |
1512 | } |
71be2cbc |
1513 | i = strend - d; |
1514 | if (i > 0) { |
1515 | Move(d, m, i, char); |
1516 | m += i; |
a0d0e21e |
1517 | } |
71be2cbc |
1518 | *m = '\0'; |
1519 | SvCUR_set(TARG, m - s); |
1520 | } |
1521 | /*SUPPRESS 560*/ |
1522 | else if (i = m - s) { /* faster from front */ |
1523 | d -= clen; |
1524 | m = d; |
1525 | sv_chop(TARG, d-i); |
1526 | s += i; |
1527 | while (i--) |
1528 | *--d = *--s; |
1529 | if (clen) |
1530 | Copy(c, m, clen, char); |
1531 | } |
1532 | else if (clen) { |
1533 | d -= clen; |
1534 | sv_chop(TARG, d); |
1535 | Copy(c, d, clen, char); |
1536 | } |
1537 | else { |
1538 | sv_chop(TARG, d); |
1539 | } |
9212bbba |
1540 | TAINT_IF(rxtainted); |
71be2cbc |
1541 | PUSHs(&sv_yes); |
1542 | } |
1543 | else { |
1544 | rxtainted = 0; |
1545 | do { |
1546 | if (iters++ > maxiters) |
1547 | DIE("Substitution loop"); |
1548 | rxtainted |= rx->exec_tainted; |
1549 | m = rx->startp[0]; |
1550 | /*SUPPRESS 560*/ |
1551 | if (i = m - s) { |
1552 | if (s != d) |
1553 | Move(s, d, i, char); |
1554 | d += i; |
a0d0e21e |
1555 | } |
71be2cbc |
1556 | if (clen) { |
1557 | Copy(c, d, clen, char); |
1558 | d += clen; |
1559 | } |
1560 | s = rx->endp[0]; |
1561 | } while (pregexec(rx, s, strend, orig, s == m, |
1562 | Nullsv, TRUE)); /* don't match same null twice */ |
1563 | if (s != d) { |
1564 | i = strend - s; |
1565 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1566 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1567 | } |
9212bbba |
1568 | TAINT_IF(rxtainted); |
71be2cbc |
1569 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1570 | } |
71be2cbc |
1571 | (void)SvPOK_only(TARG); |
1572 | SvSETMAGIC(TARG); |
9212bbba |
1573 | SvTAINT(TARG); |
71be2cbc |
1574 | LEAVE_SCOPE(oldsave); |
1575 | RETURN; |
a0d0e21e |
1576 | } |
71be2cbc |
1577 | |
e50aee73 |
1578 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc |
1579 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e |
1580 | if (force_on_match) { |
1581 | force_on_match = 0; |
1582 | s = SvPV_force(TARG, len); |
1583 | goto force_it; |
1584 | } |
71be2cbc |
1585 | rxtainted = rx->exec_tainted; |
a0d0e21e |
1586 | dstr = NEWSV(25, sv_len(TARG)); |
1587 | sv_setpvn(dstr, m, s-m); |
1588 | curpm = pm; |
1589 | if (!c) { |
1590 | register CONTEXT *cx; |
1591 | PUSHSUBST(cx); |
1592 | RETURNOP(cPMOP->op_pmreplroot); |
1593 | } |
1594 | do { |
1595 | if (iters++ > maxiters) |
1596 | DIE("Substitution loop"); |
71be2cbc |
1597 | rxtainted |= rx->exec_tainted; |
a0d0e21e |
1598 | if (rx->subbase && rx->subbase != orig) { |
1599 | m = s; |
1600 | s = orig; |
1601 | orig = rx->subbase; |
1602 | s = orig + (m - s); |
1603 | strend = s + (strend - m); |
1604 | } |
1605 | m = rx->startp[0]; |
1606 | sv_catpvn(dstr, s, m-s); |
1607 | s = rx->endp[0]; |
1608 | if (clen) |
1609 | sv_catpvn(dstr, c, clen); |
1610 | if (once) |
1611 | break; |
5f05dabc |
1612 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e |
1613 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1614 | |
9212bbba |
1615 | TAINT_IF(rxtainted); |
1616 | |
4633a7c4 |
1617 | (void)SvOOK_off(TARG); |
cb0b1708 |
1618 | Safefree(SvPVX(TARG)); |
748a9306 |
1619 | SvPVX(TARG) = SvPVX(dstr); |
1620 | SvCUR_set(TARG, SvCUR(dstr)); |
1621 | SvLEN_set(TARG, SvLEN(dstr)); |
1622 | SvPVX(dstr) = 0; |
1623 | sv_free(dstr); |
1624 | |
a0d0e21e |
1625 | (void)SvPOK_only(TARG); |
1626 | SvSETMAGIC(TARG); |
9212bbba |
1627 | SvTAINT(TARG); |
a0d0e21e |
1628 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1629 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1630 | RETURN; |
1631 | } |
5cd24f17 |
1632 | goto ret_no; |
a0d0e21e |
1633 | |
1634 | nope: |
1635 | ++BmUSEFUL(pm->op_pmshort); |
5cd24f17 |
1636 | |
1637 | ret_no: |
a0d0e21e |
1638 | PUSHs(&sv_no); |
4633a7c4 |
1639 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1640 | RETURN; |
1641 | } |
1642 | |
1643 | PP(pp_grepwhile) |
1644 | { |
1645 | dSP; |
1646 | |
1647 | if (SvTRUEx(POPs)) |
1648 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1649 | ++*markstack_ptr; |
1650 | LEAVE; /* exit inner scope */ |
1651 | |
1652 | /* All done yet? */ |
1653 | if (stack_base + *markstack_ptr > sp) { |
1654 | I32 items; |
54310121 |
1655 | I32 gimme = GIMME_V; |
a0d0e21e |
1656 | |
1657 | LEAVE; /* exit outer scope */ |
1658 | (void)POPMARK; /* pop src */ |
1659 | items = --*markstack_ptr - markstack_ptr[-1]; |
1660 | (void)POPMARK; /* pop dst */ |
1661 | SP = stack_base + POPMARK; /* pop original mark */ |
54310121 |
1662 | if (gimme == G_SCALAR) { |
a0d0e21e |
1663 | dTARGET; |
1664 | XPUSHi(items); |
a0d0e21e |
1665 | } |
54310121 |
1666 | else if (gimme == G_ARRAY) |
1667 | SP += items; |
a0d0e21e |
1668 | RETURN; |
1669 | } |
1670 | else { |
1671 | SV *src; |
1672 | |
1673 | ENTER; /* enter inner scope */ |
1674 | SAVESPTR(curpm); |
1675 | |
1676 | src = stack_base[*markstack_ptr]; |
1677 | SvTEMP_off(src); |
1678 | GvSV(defgv) = src; |
1679 | |
1680 | RETURNOP(cLOGOP->op_other); |
1681 | } |
1682 | } |
1683 | |
1684 | PP(pp_leavesub) |
1685 | { |
1686 | dSP; |
1687 | SV **mark; |
1688 | SV **newsp; |
1689 | PMOP *newpm; |
1690 | I32 gimme; |
1691 | register CONTEXT *cx; |
f86702cc |
1692 | struct block_sub cxsub; |
a0d0e21e |
1693 | |
1694 | POPBLOCK(cx,newpm); |
f86702cc |
1695 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1696 | |
a0d0e21e |
1697 | if (gimme == G_SCALAR) { |
1698 | MARK = newsp + 1; |
1699 | if (MARK <= SP) |
f86702cc |
1700 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e |
1701 | else { |
f86702cc |
1702 | MEXTEND(MARK, 0); |
a0d0e21e |
1703 | *MARK = &sv_undef; |
1704 | } |
1705 | SP = MARK; |
1706 | } |
54310121 |
1707 | else if (gimme == G_ARRAY) { |
f86702cc |
1708 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
1709 | if (!SvTEMP(*MARK)) |
1710 | *MARK = sv_mortalcopy(*MARK); |
1711 | } |
a0d0e21e |
1712 | } |
f86702cc |
1713 | PUTBACK; |
1714 | |
1715 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1716 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1717 | |
1718 | LEAVE; |
a0d0e21e |
1719 | return pop_return(); |
1720 | } |
1721 | |
1722 | PP(pp_entersub) |
1723 | { |
1724 | dSP; dPOPss; |
1725 | GV *gv; |
1726 | HV *stash; |
1727 | register CV *cv; |
1728 | register CONTEXT *cx; |
5d94fbed |
1729 | I32 gimme; |
07055b4c |
1730 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1731 | |
1732 | if (!sv) |
1733 | DIE("Not a CODE reference"); |
1734 | switch (SvTYPE(sv)) { |
1735 | default: |
1736 | if (!SvROK(sv)) { |
748a9306 |
1737 | char *sym; |
1738 | |
a0d0e21e |
1739 | if (sv == &sv_yes) /* unfound import, ignore */ |
1740 | RETURN; |
15ff848f |
1741 | if (SvGMAGICAL(sv)) { |
1742 | mg_get(sv); |
1743 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1744 | } |
1745 | else |
1746 | sym = SvPV(sv, na); |
1747 | if (!sym) |
a0d0e21e |
1748 | DIE(no_usym, "a subroutine"); |
1749 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1750 | DIE(no_symref, sym, "a subroutine"); |
1751 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1752 | break; |
1753 | } |
1754 | cv = (CV*)SvRV(sv); |
28757baa |
1755 | if (SvTYPE(cv) == SVt_PVCV) |
a0d0e21e |
1756 | break; |
1757 | /* FALL THROUGH */ |
1758 | case SVt_PVHV: |
1759 | case SVt_PVAV: |
1760 | DIE("Not a CODE reference"); |
1761 | case SVt_PVCV: |
1762 | cv = (CV*)sv; |
1763 | break; |
1764 | case SVt_PVGV: |
8ebc5c01 |
1765 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
1766 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1767 | break; |
1768 | } |
1769 | |
8ebc5c01 |
1770 | ENTER; |
1771 | SAVETMPS; |
1772 | |
a0d0e21e |
1773 | retry: |
1774 | if (!cv) |
1775 | DIE("Not a CODE reference"); |
1776 | |
1777 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
1778 | GV* autogv; |
1779 | SV* subname; |
1780 | |
1781 | /* anonymous or undef'd function leaves us no recourse */ |
1782 | if (CvANON(cv) || !(gv = CvGV(cv))) |
1783 | DIE("Undefined subroutine called"); |
1784 | /* autoloaded stub? */ |
1785 | if (cv != GvCV(gv)) { |
1786 | cv = GvCV(gv); |
1787 | goto retry; |
a0d0e21e |
1788 | } |
44a8e56a |
1789 | /* should call AUTOLOAD now? */ |
54310121 |
1790 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
1791 | FALSE))) |
1792 | { |
44a8e56a |
1793 | cv = GvCV(autogv); |
1794 | goto retry; |
1795 | } |
1796 | /* sorry */ |
1797 | subname = sv_newmortal(); |
1798 | gv_efullname3(subname, gv, Nullch); |
1799 | DIE("Undefined subroutine &%s called", SvPVX(subname)); |
a0d0e21e |
1800 | } |
1801 | |
54310121 |
1802 | gimme = GIMME_V; |
28757baa |
1803 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) { |
71be2cbc |
1804 | SV *oldsv = sv; |
a0d0e21e |
1805 | sv = GvSV(DBsub); |
1806 | save_item(sv); |
67955e0c |
1807 | gv = CvGV(cv); |
71be2cbc |
1808 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1809 | || strEQ(GvNAME(gv), "END") |
1810 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1811 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1812 | && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */ |
1813 | /* GV is potentially non-unique, or contain different CV. */ |
748a9306 |
1814 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1815 | } |
748a9306 |
1816 | else { |
4f732624 |
1817 | gv_efullname3(sv, gv, Nullch); |
748a9306 |
1818 | } |
a0d0e21e |
1819 | cv = GvCV(DBsub); |
67955e0c |
1820 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1821 | if (!cv) |
1822 | DIE("No DBsub routine"); |
1823 | } |
1824 | |
1825 | if (CvXSUB(cv)) { |
1826 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1827 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1828 | dMARK; |
1829 | register I32 items = SP - MARK; |
67955e0c |
1830 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1831 | while (sp > mark) { |
1832 | sp[1] = sp[0]; |
1833 | sp--; |
1834 | } |
1835 | stack_sp = mark + 1; |
ecfc5424 |
1836 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1837 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1838 | MARK - stack_base + 1, |
1839 | items); |
a0d0e21e |
1840 | stack_sp = stack_base + items; |
1841 | } |
1842 | else { |
748a9306 |
1843 | I32 markix = TOPMARK; |
1844 | |
a0d0e21e |
1845 | PUTBACK; |
67955e0c |
1846 | |
1847 | if (!hasargs) { |
1848 | /* Need to copy @_ to stack. Alternative may be to |
1849 | * switch stack to @_, and copy return values |
1850 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
1851 | AV* av = GvAV(defgv); |
1852 | I32 items = AvFILL(av) + 1; |
1853 | |
1854 | if (items) { |
1855 | /* Mark is at the end of the stack. */ |
1856 | EXTEND(sp, items); |
1857 | Copy(AvARRAY(av), sp + 1, items, SV*); |
1858 | sp += items; |
1859 | PUTBACK ; |
1860 | } |
1861 | } |
1862 | if (curcopdb) { /* We assume that the first |
1863 | XSUB in &DB::sub is the |
1864 | called one. */ |
1865 | SAVESPTR(curcop); |
1866 | curcop = curcopdb; |
1867 | curcopdb = NULL; |
1868 | } |
1869 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
1870 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
1871 | |
1872 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
1873 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
1874 | if (markix > stack_sp - stack_base) |
1875 | *(stack_base + markix) = &sv_undef; |
1876 | else |
1877 | *(stack_base + markix) = *stack_sp; |
1878 | stack_sp = stack_base + markix; |
1879 | } |
a0d0e21e |
1880 | } |
1881 | LEAVE; |
1882 | return NORMAL; |
1883 | } |
1884 | else { |
1885 | dMARK; |
1886 | register I32 items = SP - MARK; |
a0d0e21e |
1887 | AV* padlist = CvPADLIST(cv); |
1888 | SV** svp = AvARRAY(padlist); |
1889 | push_return(op->op_next); |
1890 | PUSHBLOCK(cx, CXt_SUB, MARK); |
1891 | PUSHSUB(cx); |
1892 | CvDEPTH(cv)++; |
1893 | if (CvDEPTH(cv) < 2) |
1894 | (void)SvREFCNT_inc(cv); |
1895 | else { /* save temporaries on recursion? */ |
5f05dabc |
1896 | if (CvDEPTH(cv) == 100 && dowarn |
44a8e56a |
1897 | && !(perldb && cv == GvCV(DBsub))) |
1898 | sub_crush_depth(cv); |
a0d0e21e |
1899 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1900 | AV *av; |
1901 | AV *newpad = newAV(); |
4aa0a1f7 |
1902 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1903 | I32 ix = AvFILL((AV*)svp[1]); |
1904 | svp = AvARRAY(svp[0]); |
748a9306 |
1905 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1906 | if (svp[ix] != &sv_undef) { |
748a9306 |
1907 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1908 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
1909 | || *name == '&') /* anonymous code? */ |
1910 | { |
1911 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
1912 | } |
1913 | else { /* our own lexical */ |
1914 | if (*name == '@') |
1915 | av_store(newpad, ix, sv = (SV*)newAV()); |
1916 | else if (*name == '%') |
1917 | av_store(newpad, ix, sv = (SV*)newHV()); |
1918 | else |
1919 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1920 | SvPADMY_on(sv); |
1921 | } |
a0d0e21e |
1922 | } |
1923 | else { |
748a9306 |
1924 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1925 | SvPADTMP_on(sv); |
1926 | } |
1927 | } |
1928 | av = newAV(); /* will be @_ */ |
1929 | av_extend(av, 0); |
1930 | av_store(newpad, 0, (SV*)av); |
1931 | AvFLAGS(av) = AVf_REIFY; |
1932 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1933 | AvFILL(padlist) = CvDEPTH(cv); |
1934 | svp = AvARRAY(padlist); |
1935 | } |
1936 | } |
1937 | SAVESPTR(curpad); |
1938 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1939 | if (hasargs) { |
1940 | AV* av = (AV*)curpad[0]; |
1941 | SV** ary; |
1942 | |
1943 | if (AvREAL(av)) { |
1944 | av_clear(av); |
1945 | AvREAL_off(av); |
1946 | } |
1947 | cx->blk_sub.savearray = GvAV(defgv); |
1948 | cx->blk_sub.argarray = av; |
0c8c7a05 |
1949 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
a0d0e21e |
1950 | ++MARK; |
1951 | |
1952 | if (items > AvMAX(av) + 1) { |
1953 | ary = AvALLOC(av); |
1954 | if (AvARRAY(av) != ary) { |
1955 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1956 | SvPVX(av) = (char*)ary; |
1957 | } |
1958 | if (items > AvMAX(av) + 1) { |
1959 | AvMAX(av) = items - 1; |
1960 | Renew(ary,items,SV*); |
1961 | AvALLOC(av) = ary; |
1962 | SvPVX(av) = (char*)ary; |
1963 | } |
1964 | } |
1965 | Copy(MARK,AvARRAY(av),items,SV*); |
1966 | AvFILL(av) = items - 1; |
1967 | |
1968 | while (items--) { |
1969 | if (*MARK) |
1970 | SvTEMP_off(*MARK); |
1971 | MARK++; |
1972 | } |
1973 | } |
1974 | RETURNOP(CvSTART(cv)); |
1975 | } |
1976 | } |
1977 | |
44a8e56a |
1978 | void |
1979 | sub_crush_depth(cv) |
1980 | CV* cv; |
1981 | { |
1982 | if (CvANON(cv)) |
1983 | warn("Deep recursion on anonymous subroutine"); |
1984 | else { |
1985 | SV* tmpstr = sv_newmortal(); |
1986 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
1987 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
1988 | } |
1989 | } |
1990 | |
a0d0e21e |
1991 | PP(pp_aelem) |
1992 | { |
1993 | dSP; |
1994 | SV** svp; |
748a9306 |
1995 | I32 elem = POPi; |
68dc0745 |
1996 | AV* av = (AV*)POPs; |
1997 | U32 lval = op->op_flags & OPf_MOD; |
1998 | U32 defer = (op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
a0d0e21e |
1999 | |
748a9306 |
2000 | if (elem > 0) |
2001 | elem -= curcop->cop_arybase; |
a0d0e21e |
2002 | if (SvTYPE(av) != SVt_PVAV) |
2003 | RETPUSHUNDEF; |
68dc0745 |
2004 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2005 | if (lval) { |
68dc0745 |
2006 | if (!svp || *svp == &sv_undef) { |
2007 | SV* lv; |
2008 | if (!defer) |
2009 | DIE(no_aelem, elem); |
2010 | lv = sv_newmortal(); |
2011 | sv_upgrade(lv, SVt_PVLV); |
2012 | LvTYPE(lv) = 'y'; |
2013 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2014 | LvTARG(lv) = SvREFCNT_inc(av); |
2015 | LvTARGOFF(lv) = elem; |
2016 | LvTARGLEN(lv) = 1; |
2017 | PUSHs(lv); |
2018 | RETURN; |
2019 | } |
a0d0e21e |
2020 | if (op->op_private & OPpLVAL_INTRO) |
2021 | save_svref(svp); |
5f05dabc |
2022 | else if (op->op_private & OPpDEREF) |
68dc0745 |
2023 | vivify_ref(*svp, op->op_private & OPpDEREF); |
a0d0e21e |
2024 | } |
2025 | PUSHs(svp ? *svp : &sv_undef); |
2026 | RETURN; |
2027 | } |
2028 | |
02a9e968 |
2029 | void |
68dc0745 |
2030 | vivify_ref(sv, to_what) |
02a9e968 |
2031 | SV* sv; |
68dc0745 |
2032 | U32 to_what; |
02a9e968 |
2033 | { |
2034 | if (SvGMAGICAL(sv)) |
2035 | mg_get(sv); |
2036 | if (!SvOK(sv)) { |
2037 | if (SvREADONLY(sv)) |
2038 | croak(no_modify); |
5f05dabc |
2039 | if (SvTYPE(sv) < SVt_RV) |
2040 | sv_upgrade(sv, SVt_RV); |
2041 | else if (SvTYPE(sv) >= SVt_PV) { |
2042 | (void)SvOOK_off(sv); |
2043 | Safefree(SvPVX(sv)); |
2044 | SvLEN(sv) = SvCUR(sv) = 0; |
2045 | } |
68dc0745 |
2046 | switch (to_what) { |
5f05dabc |
2047 | case OPpDEREF_SV: |
2048 | SvRV(sv) = newSV(0); |
2049 | break; |
2050 | case OPpDEREF_AV: |
2051 | SvRV(sv) = (SV*)newAV(); |
2052 | break; |
2053 | case OPpDEREF_HV: |
2054 | SvRV(sv) = (SV*)newHV(); |
2055 | break; |
2056 | } |
02a9e968 |
2057 | SvROK_on(sv); |
2058 | SvSETMAGIC(sv); |
2059 | } |
2060 | } |
2061 | |
a0d0e21e |
2062 | PP(pp_method) |
2063 | { |
2064 | dSP; |
2065 | SV* sv; |
2066 | SV* ob; |
ac91690f |
2067 | HV* stash; |
a0d0e21e |
2068 | GV* gv; |
ac91690f |
2069 | char* packname; |
2070 | STRLEN packlen; |
2071 | char* name; |
2072 | char* origname; |
2073 | char* sep; |
2074 | char* p; |
a0d0e21e |
2075 | |
a0d0e21e |
2076 | sv = *(stack_base + TOPMARK + 1); |
ac91690f |
2077 | |
2078 | sep = name = origname = SvPV(TOPs, na); |
2079 | for (p = name; *p; p++) { |
2080 | if (*p == '\'') |
2081 | sep = p, name = p + 1; |
2082 | else if (*p == ':' && *(p + 1) == ':') |
2083 | sep = p, name = p + 2; |
2084 | } |
2085 | if (name == origname) |
2086 | packname = Nullch; |
2087 | else { |
2088 | packname = origname; |
2089 | packlen = sep - origname; |
2090 | |
2091 | /* let gv_fetchmethod() handle SUPER:: */ |
2092 | if (packlen == 5 && strnEQ(packname, "SUPER", 5)) { |
2093 | packname = Nullch; |
2094 | name = origname; |
2095 | } |
2096 | } |
2097 | |
16d20bd9 |
2098 | if (SvGMAGICAL(sv)) |
2099 | mg_get(sv); |
a0d0e21e |
2100 | if (SvROK(sv)) |
16d20bd9 |
2101 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2102 | else { |
ac91690f |
2103 | char* tname = Nullch; |
2104 | STRLEN tlen = 0; |
a0d0e21e |
2105 | GV* iogv; |
a0d0e21e |
2106 | |
2107 | if (!SvOK(sv) || |
ac91690f |
2108 | !(tname = SvPV(sv, tlen)) || |
2109 | !(iogv = gv_fetchpv(tname, FALSE, SVt_PVIO)) || |
2110 | !(ob = (SV*)GvIO(iogv))) |
a0d0e21e |
2111 | { |
ac91690f |
2112 | if (!packname) { |
2113 | packname = tname; |
2114 | packlen = tlen; |
a0d0e21e |
2115 | } |
ac91690f |
2116 | if (!packname || !isALPHA(*packname)) |
2117 | DIE("Can't call method \"%s\" without a package or object reference", name); |
2118 | goto fetch; |
a0d0e21e |
2119 | } |
a0d0e21e |
2120 | |
ac91690f |
2121 | /* working on an IO object */ |
2122 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2123 | } |
2124 | |
ac91690f |
2125 | if (!ob || !SvOBJECT(ob)) |
2126 | DIE("Can't call method \"%s\" on unblessed reference", origname); |
a0d0e21e |
2127 | |
ac91690f |
2128 | if (!packname) |
2129 | stash = SvSTASH(ob); |
2130 | else { |
2131 | fetch: |
2132 | stash = gv_stashpvn(packname, packlen, TRUE); |
2133 | } |
2134 | gv = gv_fetchmethod(stash, name); |
2135 | if (!gv) |
2136 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2137 | name, HvNAME((strnEQ(name, "SUPER", 5) && |
2138 | (name[5] == '\'' || |
2139 | (name[5] == ':' && name[6] == ':'))) |
2140 | ? curcop->cop_stash : stash)); |
8ebc5c01 |
2141 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2142 | RETURN; |
2143 | } |
2144 | |