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 |
9d116dd7 |
24 | #ifdef I_FCNTL |
25 | #include <fcntl.h> |
26 | #endif |
27 | #ifdef I_SYS_FILE |
28 | #include <sys/file.h> |
29 | #endif |
8ac85365 |
30 | |
a0ed51b3 |
31 | #define HOP(pos,off) (IN_UTF8 ? utf8_hop(pos, off) : (pos + off)) |
32 | |
a0d0e21e |
33 | /* Hot code. */ |
34 | |
11343788 |
35 | #ifdef USE_THREADS |
36 | static void |
8ac85365 |
37 | unset_cvowner(void *cvarg) |
11343788 |
38 | { |
39 | register CV* cv = (CV *) cvarg; |
40 | #ifdef DEBUGGING |
41 | dTHR; |
42 | #endif /* DEBUGGING */ |
43 | |
8b73bbec |
44 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
1fd28e87 |
45 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 |
46 | MUTEX_LOCK(CvMUTEXP(cv)); |
8b73bbec |
47 | DEBUG_S(if (CvDEPTH(cv) != 0) |
77a005ab |
48 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
49 | CvDEPTH(cv));); |
11343788 |
50 | assert(thr == CvOWNER(cv)); |
51 | CvOWNER(cv) = 0; |
11343788 |
52 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
53 | SvREFCNT_dec(cv); |
54 | } |
11343788 |
55 | #endif /* USE_THREADS */ |
56 | |
a0d0e21e |
57 | PP(pp_const) |
58 | { |
4e35701f |
59 | djSP; |
a0d0e21e |
60 | XPUSHs(cSVOP->op_sv); |
61 | RETURN; |
62 | } |
63 | |
64 | PP(pp_nextstate) |
65 | { |
533c011a |
66 | PL_curcop = (COP*)PL_op; |
a0d0e21e |
67 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
68 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
69 | FREETMPS; |
70 | return NORMAL; |
71 | } |
72 | |
73 | PP(pp_gvsv) |
74 | { |
4e35701f |
75 | djSP; |
924508f0 |
76 | EXTEND(SP,1); |
533c011a |
77 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e |
78 | PUSHs(save_scalar(cGVOP->op_gv)); |
79 | else |
80 | PUSHs(GvSV(cGVOP->op_gv)); |
81 | RETURN; |
82 | } |
83 | |
84 | PP(pp_null) |
85 | { |
86 | return NORMAL; |
87 | } |
88 | |
89 | PP(pp_pushmark) |
90 | { |
3280af22 |
91 | PUSHMARK(PL_stack_sp); |
a0d0e21e |
92 | return NORMAL; |
93 | } |
94 | |
95 | PP(pp_stringify) |
96 | { |
4e35701f |
97 | djSP; dTARGET; |
a0d0e21e |
98 | STRLEN len; |
99 | char *s; |
100 | s = SvPV(TOPs,len); |
101 | sv_setpvn(TARG,s,len); |
102 | SETTARG; |
103 | RETURN; |
104 | } |
105 | |
106 | PP(pp_gv) |
107 | { |
4e35701f |
108 | djSP; |
a0d0e21e |
109 | XPUSHs((SV*)cGVOP->op_gv); |
110 | RETURN; |
111 | } |
112 | |
113 | PP(pp_and) |
114 | { |
4e35701f |
115 | djSP; |
a0d0e21e |
116 | if (!SvTRUE(TOPs)) |
117 | RETURN; |
118 | else { |
119 | --SP; |
120 | RETURNOP(cLOGOP->op_other); |
121 | } |
122 | } |
123 | |
124 | PP(pp_sassign) |
125 | { |
4e35701f |
126 | djSP; dPOPTOPssrl; |
748a9306 |
127 | MAGIC *mg; |
128 | |
533c011a |
129 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e |
130 | SV *temp; |
131 | temp = left; left = right; right = temp; |
132 | } |
3280af22 |
133 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e |
134 | TAINT_NOT; |
54310121 |
135 | SvSetMagicSV(right, left); |
a0d0e21e |
136 | SETs(right); |
137 | RETURN; |
138 | } |
139 | |
140 | PP(pp_cond_expr) |
141 | { |
4e35701f |
142 | djSP; |
a0d0e21e |
143 | if (SvTRUEx(POPs)) |
144 | RETURNOP(cCONDOP->op_true); |
145 | else |
146 | RETURNOP(cCONDOP->op_false); |
147 | } |
148 | |
149 | PP(pp_unstack) |
150 | { |
151 | I32 oldsave; |
152 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 |
153 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e |
154 | FREETMPS; |
3280af22 |
155 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e |
156 | LEAVE_SCOPE(oldsave); |
157 | return NORMAL; |
158 | } |
159 | |
a0d0e21e |
160 | PP(pp_concat) |
161 | { |
4e35701f |
162 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 |
163 | { |
164 | dPOPTOPssrl; |
a0d0e21e |
165 | STRLEN len; |
166 | char *s; |
167 | if (TARG != left) { |
168 | s = SvPV(left,len); |
169 | sv_setpvn(TARG,s,len); |
170 | } |
c07a80fd |
171 | else if (SvGMAGICAL(TARG)) |
172 | mg_get(TARG); |
7a4c00b4 |
173 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
174 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
175 | s = SvPV_force(TARG, len); |
4633a7c4 |
176 | } |
a0d0e21e |
177 | s = SvPV(right,len); |
68dc0745 |
178 | if (SvOK(TARG)) |
179 | sv_catpvn(TARG,s,len); |
180 | else |
181 | sv_setpvn(TARG,s,len); /* suppress warning */ |
a0d0e21e |
182 | SETTARG; |
183 | RETURN; |
748a9306 |
184 | } |
a0d0e21e |
185 | } |
186 | |
187 | PP(pp_padsv) |
188 | { |
4e35701f |
189 | djSP; dTARGET; |
a0d0e21e |
190 | XPUSHs(TARG); |
533c011a |
191 | if (PL_op->op_flags & OPf_MOD) { |
192 | if (PL_op->op_private & OPpLVAL_INTRO) |
193 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); |
194 | else if (PL_op->op_private & OPpDEREF) { |
8ec5e241 |
195 | PUTBACK; |
533c011a |
196 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 |
197 | SPAGAIN; |
198 | } |
4633a7c4 |
199 | } |
a0d0e21e |
200 | RETURN; |
201 | } |
202 | |
203 | PP(pp_readline) |
204 | { |
f5284f61 |
205 | tryAMAGICunTARGET(iter, 0); |
3280af22 |
206 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 |
207 | if (PL_op->op_flags & OPf_SPECIAL) { /* Are called as <$var> */ |
208 | if (SvROK(PL_last_in_gv)) { |
209 | if (SvTYPE(SvRV(PL_last_in_gv)) != SVt_PVGV) |
210 | goto hard_way; |
211 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
212 | } else if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
213 | hard_way: { |
214 | dSP; |
215 | XPUSHs((SV*)PL_last_in_gv); |
216 | PUTBACK; |
217 | pp_rv2gv(ARGS); |
218 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
219 | } |
220 | } |
221 | } |
a0d0e21e |
222 | return do_readline(); |
223 | } |
224 | |
225 | PP(pp_eq) |
226 | { |
4e35701f |
227 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e |
228 | { |
229 | dPOPnv; |
54310121 |
230 | SETs(boolSV(TOPn == value)); |
a0d0e21e |
231 | RETURN; |
232 | } |
233 | } |
234 | |
235 | PP(pp_preinc) |
236 | { |
4e35701f |
237 | djSP; |
68dc0745 |
238 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
22c35a8c |
239 | croak(PL_no_modify); |
55497cff |
240 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
241 | SvIVX(TOPs) != IV_MAX) |
242 | { |
748a9306 |
243 | ++SvIVX(TOPs); |
55497cff |
244 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
245 | } |
246 | else |
247 | sv_inc(TOPs); |
a0d0e21e |
248 | SvSETMAGIC(TOPs); |
249 | return NORMAL; |
250 | } |
251 | |
252 | PP(pp_or) |
253 | { |
4e35701f |
254 | djSP; |
a0d0e21e |
255 | if (SvTRUE(TOPs)) |
256 | RETURN; |
257 | else { |
258 | --SP; |
259 | RETURNOP(cLOGOP->op_other); |
260 | } |
261 | } |
262 | |
263 | PP(pp_add) |
264 | { |
4e35701f |
265 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e |
266 | { |
7a4c00b4 |
267 | dPOPTOPnnrl_ul; |
a0d0e21e |
268 | SETn( left + right ); |
269 | RETURN; |
270 | } |
271 | } |
272 | |
273 | PP(pp_aelemfast) |
274 | { |
4e35701f |
275 | djSP; |
a0d0e21e |
276 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a |
277 | U32 lval = PL_op->op_flags & OPf_MOD; |
278 | SV** svp = av_fetch(av, PL_op->op_private, lval); |
3280af22 |
279 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 |
280 | EXTEND(SP, 1); |
be6c24e0 |
281 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
282 | sv = sv_mortalcopy(sv); |
283 | PUSHs(sv); |
a0d0e21e |
284 | RETURN; |
285 | } |
286 | |
287 | PP(pp_join) |
288 | { |
4e35701f |
289 | djSP; dMARK; dTARGET; |
a0d0e21e |
290 | MARK++; |
291 | do_join(TARG, *MARK, MARK, SP); |
292 | SP = MARK; |
293 | SETs(TARG); |
294 | RETURN; |
295 | } |
296 | |
297 | PP(pp_pushre) |
298 | { |
4e35701f |
299 | djSP; |
44a8e56a |
300 | #ifdef DEBUGGING |
301 | /* |
302 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
303 | * will be enough to hold an OP*. |
304 | */ |
305 | SV* sv = sv_newmortal(); |
306 | sv_upgrade(sv, SVt_PVLV); |
307 | LvTYPE(sv) = '/'; |
533c011a |
308 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a |
309 | XPUSHs(sv); |
310 | #else |
6b88bc9c |
311 | XPUSHs((SV*)PL_op); |
44a8e56a |
312 | #endif |
a0d0e21e |
313 | RETURN; |
314 | } |
315 | |
316 | /* Oversized hot code. */ |
317 | |
318 | PP(pp_print) |
319 | { |
4e35701f |
320 | djSP; dMARK; dORIGMARK; |
a0d0e21e |
321 | GV *gv; |
322 | IO *io; |
760ac839 |
323 | register PerlIO *fp; |
236988e4 |
324 | MAGIC *mg; |
a0d0e21e |
325 | |
533c011a |
326 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
327 | gv = (GV*)*++MARK; |
328 | else |
3280af22 |
329 | gv = PL_defoutgv; |
33c27489 |
330 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 |
331 | if (MARK == ORIGMARK) { |
a60c0954 |
332 | /* If using default handle then we need to make space to |
333 | * pass object as 1st arg, so move other args up ... |
334 | */ |
4352c267 |
335 | MEXTEND(SP, 1); |
68dc0745 |
336 | ++MARK; |
337 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
338 | ++SP; |
339 | } |
340 | PUSHMARK(MARK - 1); |
33c27489 |
341 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 |
342 | PUTBACK; |
236988e4 |
343 | ENTER; |
344 | perl_call_method("PRINT", G_SCALAR); |
345 | LEAVE; |
346 | SPAGAIN; |
68dc0745 |
347 | MARK = ORIGMARK + 1; |
348 | *MARK = *SP; |
349 | SP = MARK; |
236988e4 |
350 | RETURN; |
351 | } |
a0d0e21e |
352 | if (!(io = GvIO(gv))) { |
599cee73 |
353 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 |
354 | SV* sv = sv_newmortal(); |
4f732624 |
355 | gv_fullname3(sv, gv, Nullch); |
599cee73 |
356 | warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,PL_na)); |
748a9306 |
357 | } |
358 | |
359 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
360 | goto just_say_no; |
361 | } |
362 | else if (!(fp = IoOFP(io))) { |
599cee73 |
363 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
748a9306 |
364 | SV* sv = sv_newmortal(); |
4f732624 |
365 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
366 | if (IoIFP(io)) |
599cee73 |
367 | warner(WARN_IO, "Filehandle %s opened only for input", |
368 | SvPV(sv,PL_na)); |
369 | else if (ckWARN(WARN_CLOSED)) |
370 | warner(WARN_CLOSED, "print on closed filehandle %s", |
371 | SvPV(sv,PL_na)); |
a0d0e21e |
372 | } |
748a9306 |
373 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
374 | goto just_say_no; |
375 | } |
376 | else { |
377 | MARK++; |
3280af22 |
378 | if (PL_ofslen) { |
a0d0e21e |
379 | while (MARK <= SP) { |
380 | if (!do_print(*MARK, fp)) |
381 | break; |
382 | MARK++; |
383 | if (MARK <= SP) { |
3280af22 |
384 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
385 | MARK--; |
386 | break; |
387 | } |
388 | } |
389 | } |
390 | } |
391 | else { |
392 | while (MARK <= SP) { |
393 | if (!do_print(*MARK, fp)) |
394 | break; |
395 | MARK++; |
396 | } |
397 | } |
398 | if (MARK <= SP) |
399 | goto just_say_no; |
400 | else { |
3280af22 |
401 | if (PL_orslen) |
402 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
403 | goto just_say_no; |
404 | |
405 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
406 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
407 | goto just_say_no; |
408 | } |
409 | } |
410 | SP = ORIGMARK; |
3280af22 |
411 | PUSHs(&PL_sv_yes); |
a0d0e21e |
412 | RETURN; |
413 | |
414 | just_say_no: |
415 | SP = ORIGMARK; |
3280af22 |
416 | PUSHs(&PL_sv_undef); |
a0d0e21e |
417 | RETURN; |
418 | } |
419 | |
420 | PP(pp_rv2av) |
421 | { |
f5284f61 |
422 | djSP; dTOPss; |
a0d0e21e |
423 | AV *av; |
424 | |
425 | if (SvROK(sv)) { |
426 | wasref: |
f5284f61 |
427 | tryAMAGICunDEREF(to_av); |
428 | |
a0d0e21e |
429 | av = (AV*)SvRV(sv); |
430 | if (SvTYPE(av) != SVt_PVAV) |
431 | DIE("Not an ARRAY reference"); |
533c011a |
432 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
433 | SETs((SV*)av); |
a0d0e21e |
434 | RETURN; |
435 | } |
436 | } |
437 | else { |
438 | if (SvTYPE(sv) == SVt_PVAV) { |
439 | av = (AV*)sv; |
533c011a |
440 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
441 | SETs((SV*)av); |
a0d0e21e |
442 | RETURN; |
443 | } |
444 | } |
445 | else { |
67955e0c |
446 | GV *gv; |
447 | |
a0d0e21e |
448 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
449 | char *sym; |
450 | |
a0d0e21e |
451 | if (SvGMAGICAL(sv)) { |
452 | mg_get(sv); |
453 | if (SvROK(sv)) |
454 | goto wasref; |
455 | } |
456 | if (!SvOK(sv)) { |
533c011a |
457 | if (PL_op->op_flags & OPf_REF || |
458 | PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c |
459 | DIE(PL_no_usym, "an ARRAY"); |
599cee73 |
460 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c |
461 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
f5284f61 |
462 | if (GIMME == G_ARRAY) { |
463 | POPs; |
4633a7c4 |
464 | RETURN; |
f5284f61 |
465 | } |
466 | RETSETUNDEF; |
a0d0e21e |
467 | } |
3280af22 |
468 | sym = SvPV(sv,PL_na); |
533c011a |
469 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c |
470 | DIE(PL_no_symref, sym, "an ARRAY"); |
67955e0c |
471 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
472 | } else { |
473 | gv = (GV*)sv; |
a0d0e21e |
474 | } |
67955e0c |
475 | av = GvAVn(gv); |
533c011a |
476 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
477 | av = save_ary(gv); |
533c011a |
478 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 |
479 | SETs((SV*)av); |
a0d0e21e |
480 | RETURN; |
481 | } |
482 | } |
483 | } |
484 | |
485 | if (GIMME == G_ARRAY) { |
486 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
487 | POPs; /* XXXX May be optimized away? */ |
93965878 |
488 | EXTEND(SP, maxarg); |
489 | if (SvRMAGICAL(av)) { |
490 | U32 i; |
491 | for (i=0; i < maxarg; i++) { |
492 | SV **svp = av_fetch(av, i, FALSE); |
3280af22 |
493 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 |
494 | } |
495 | } |
496 | else { |
497 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
498 | } |
a0d0e21e |
499 | SP += maxarg; |
500 | } |
501 | else { |
502 | dTARGET; |
503 | I32 maxarg = AvFILL(av) + 1; |
f5284f61 |
504 | SETi(maxarg); |
a0d0e21e |
505 | } |
506 | RETURN; |
507 | } |
508 | |
509 | PP(pp_rv2hv) |
510 | { |
4e35701f |
511 | djSP; dTOPss; |
a0d0e21e |
512 | HV *hv; |
513 | |
514 | if (SvROK(sv)) { |
515 | wasref: |
f5284f61 |
516 | tryAMAGICunDEREF(to_hv); |
517 | |
a0d0e21e |
518 | hv = (HV*)SvRV(sv); |
c750a3ec |
519 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e |
520 | DIE("Not a HASH reference"); |
533c011a |
521 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
522 | SETs((SV*)hv); |
523 | RETURN; |
524 | } |
525 | } |
526 | else { |
c750a3ec |
527 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
528 | hv = (HV*)sv; |
533c011a |
529 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
530 | SETs((SV*)hv); |
531 | RETURN; |
532 | } |
533 | } |
534 | else { |
67955e0c |
535 | GV *gv; |
536 | |
a0d0e21e |
537 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
538 | char *sym; |
539 | |
a0d0e21e |
540 | if (SvGMAGICAL(sv)) { |
541 | mg_get(sv); |
542 | if (SvROK(sv)) |
543 | goto wasref; |
544 | } |
545 | if (!SvOK(sv)) { |
533c011a |
546 | if (PL_op->op_flags & OPf_REF || |
547 | PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c |
548 | DIE(PL_no_usym, "a HASH"); |
599cee73 |
549 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c |
550 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
4633a7c4 |
551 | if (GIMME == G_ARRAY) { |
552 | SP--; |
553 | RETURN; |
554 | } |
a0d0e21e |
555 | RETSETUNDEF; |
556 | } |
3280af22 |
557 | sym = SvPV(sv,PL_na); |
533c011a |
558 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c |
559 | DIE(PL_no_symref, sym, "a HASH"); |
67955e0c |
560 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
561 | } else { |
562 | gv = (GV*)sv; |
a0d0e21e |
563 | } |
67955e0c |
564 | hv = GvHVn(gv); |
533c011a |
565 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c |
566 | hv = save_hash(gv); |
533c011a |
567 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e |
568 | SETs((SV*)hv); |
569 | RETURN; |
570 | } |
571 | } |
572 | } |
573 | |
574 | if (GIMME == G_ARRAY) { /* array wanted */ |
3280af22 |
575 | *PL_stack_sp = (SV*)hv; |
a0d0e21e |
576 | return do_kv(ARGS); |
577 | } |
578 | else { |
579 | dTARGET; |
4b154ab5 |
580 | if (SvTYPE(hv) == SVt_PVAV) |
581 | hv = avhv_keys((AV*)hv); |
46fc3d4c |
582 | if (HvFILL(hv)) |
583 | sv_setpvf(TARG, "%ld/%ld", |
584 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e |
585 | else |
586 | sv_setiv(TARG, 0); |
c750a3ec |
587 | |
a0d0e21e |
588 | SETTARG; |
589 | RETURN; |
590 | } |
591 | } |
592 | |
593 | PP(pp_aassign) |
594 | { |
4e35701f |
595 | djSP; |
3280af22 |
596 | SV **lastlelem = PL_stack_sp; |
597 | SV **lastrelem = PL_stack_base + POPMARK; |
598 | SV **firstrelem = PL_stack_base + POPMARK + 1; |
a0d0e21e |
599 | SV **firstlelem = lastrelem + 1; |
600 | |
601 | register SV **relem; |
602 | register SV **lelem; |
603 | |
604 | register SV *sv; |
605 | register AV *ary; |
606 | |
54310121 |
607 | I32 gimme; |
a0d0e21e |
608 | HV *hash; |
609 | I32 i; |
610 | int magic; |
611 | |
3280af22 |
612 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e |
613 | |
614 | /* If there's a common identifier on both sides we have to take |
615 | * special care that assigning the identifier on the left doesn't |
616 | * clobber a value on the right that's used later in the list. |
617 | */ |
533c011a |
618 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 |
619 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e |
620 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
621 | /*SUPPRESS 560*/ |
a1f49e72 |
622 | if (sv = *relem) { |
623 | TAINT_NOT; /* Each item is independent */ |
a0d0e21e |
624 | *relem = sv_mortalcopy(sv); |
a1f49e72 |
625 | } |
a0d0e21e |
626 | } |
627 | } |
628 | |
629 | relem = firstrelem; |
630 | lelem = firstlelem; |
631 | ary = Null(AV*); |
632 | hash = Null(HV*); |
633 | while (lelem <= lastlelem) { |
bbce6d69 |
634 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
635 | sv = *lelem++; |
636 | switch (SvTYPE(sv)) { |
637 | case SVt_PVAV: |
638 | ary = (AV*)sv; |
748a9306 |
639 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
640 | |
641 | av_clear(ary); |
7e42bd57 |
642 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
643 | i = 0; |
644 | while (relem <= lastrelem) { /* gobble up all the rest */ |
5117ca91 |
645 | SV **didstore; |
a0d0e21e |
646 | sv = NEWSV(28,0); |
647 | assert(*relem); |
648 | sv_setsv(sv,*relem); |
649 | *(relem++) = sv; |
5117ca91 |
650 | didstore = av_store(ary,i++,sv); |
651 | if (magic) { |
fb73857a |
652 | if (SvSMAGICAL(sv)) |
653 | mg_set(sv); |
5117ca91 |
654 | if (!didstore) |
655 | SvREFCNT_dec(sv); |
656 | } |
bbce6d69 |
657 | TAINT_NOT; |
a0d0e21e |
658 | } |
659 | break; |
660 | case SVt_PVHV: { |
a0d0e21e |
661 | SV *tmpstr; |
662 | |
663 | hash = (HV*)sv; |
748a9306 |
664 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
665 | hv_clear(hash); |
666 | |
667 | while (relem < lastrelem) { /* gobble up all the rest */ |
5117ca91 |
668 | HE *didstore; |
4633a7c4 |
669 | if (*relem) |
a0d0e21e |
670 | sv = *(relem++); |
4633a7c4 |
671 | else |
3280af22 |
672 | sv = &PL_sv_no, relem++; |
a0d0e21e |
673 | tmpstr = NEWSV(29,0); |
674 | if (*relem) |
675 | sv_setsv(tmpstr,*relem); /* value */ |
676 | *(relem++) = tmpstr; |
5117ca91 |
677 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
678 | if (magic) { |
fb73857a |
679 | if (SvSMAGICAL(tmpstr)) |
680 | mg_set(tmpstr); |
5117ca91 |
681 | if (!didstore) |
682 | SvREFCNT_dec(tmpstr); |
683 | } |
bbce6d69 |
684 | TAINT_NOT; |
8e07c86e |
685 | } |
6a0deba8 |
686 | if (relem == lastrelem) { |
687 | if (*relem) { |
688 | HE *didstore; |
599cee73 |
689 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 |
690 | if (relem == firstrelem && |
691 | SvROK(*relem) && |
692 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || |
693 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) |
599cee73 |
694 | warner(WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 |
695 | else |
599cee73 |
696 | warner(WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 |
697 | } |
698 | tmpstr = NEWSV(29,0); |
699 | didstore = hv_store_ent(hash,*relem,tmpstr,0); |
700 | if (magic) { |
701 | if (SvSMAGICAL(tmpstr)) |
702 | mg_set(tmpstr); |
703 | if (!didstore) |
704 | SvREFCNT_dec(tmpstr); |
705 | } |
706 | TAINT_NOT; |
707 | } |
708 | relem++; |
1930e939 |
709 | } |
a0d0e21e |
710 | } |
711 | break; |
712 | default: |
713 | if (SvTHINKFIRST(sv)) { |
3280af22 |
714 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) { |
d689ffdd |
715 | if (!SvIMMORTAL(sv)) |
22c35a8c |
716 | DIE(PL_no_modify); |
a0d0e21e |
717 | if (relem <= lastrelem) |
718 | relem++; |
719 | break; |
720 | } |
721 | if (SvROK(sv)) |
722 | sv_unref(sv); |
723 | } |
724 | if (relem <= lastrelem) { |
725 | sv_setsv(sv, *relem); |
726 | *(relem++) = sv; |
727 | } |
728 | else |
3280af22 |
729 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e |
730 | SvSETMAGIC(sv); |
731 | break; |
732 | } |
733 | } |
3280af22 |
734 | if (PL_delaymagic & ~DM_DELAY) { |
735 | if (PL_delaymagic & DM_UID) { |
a0d0e21e |
736 | #ifdef HAS_SETRESUID |
b28d0864 |
737 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e |
738 | #else |
739 | # ifdef HAS_SETREUID |
3280af22 |
740 | (void)setreuid(PL_uid,PL_euid); |
56febc5e |
741 | # else |
742 | # ifdef HAS_SETRUID |
b28d0864 |
743 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
744 | (void)setruid(PL_uid); |
745 | PL_delaymagic &= ~DM_RUID; |
a0d0e21e |
746 | } |
56febc5e |
747 | # endif /* HAS_SETRUID */ |
748 | # ifdef HAS_SETEUID |
b28d0864 |
749 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
750 | (void)seteuid(PL_uid); |
751 | PL_delaymagic &= ~DM_EUID; |
a0d0e21e |
752 | } |
56febc5e |
753 | # endif /* HAS_SETEUID */ |
b28d0864 |
754 | if (PL_delaymagic & DM_UID) { |
755 | if (PL_uid != PL_euid) |
a0d0e21e |
756 | DIE("No setreuid available"); |
b28d0864 |
757 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e |
758 | } |
56febc5e |
759 | # endif /* HAS_SETREUID */ |
760 | #endif /* HAS_SETRESUID */ |
3280af22 |
761 | PL_uid = (int)PerlProc_getuid(); |
762 | PL_euid = (int)PerlProc_geteuid(); |
a0d0e21e |
763 | } |
3280af22 |
764 | if (PL_delaymagic & DM_GID) { |
a0d0e21e |
765 | #ifdef HAS_SETRESGID |
b28d0864 |
766 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e |
767 | #else |
768 | # ifdef HAS_SETREGID |
3280af22 |
769 | (void)setregid(PL_gid,PL_egid); |
56febc5e |
770 | # else |
771 | # ifdef HAS_SETRGID |
b28d0864 |
772 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
773 | (void)setrgid(PL_gid); |
774 | PL_delaymagic &= ~DM_RGID; |
a0d0e21e |
775 | } |
56febc5e |
776 | # endif /* HAS_SETRGID */ |
777 | # ifdef HAS_SETEGID |
b28d0864 |
778 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
779 | (void)setegid(PL_gid); |
780 | PL_delaymagic &= ~DM_EGID; |
a0d0e21e |
781 | } |
56febc5e |
782 | # endif /* HAS_SETEGID */ |
b28d0864 |
783 | if (PL_delaymagic & DM_GID) { |
784 | if (PL_gid != PL_egid) |
a0d0e21e |
785 | DIE("No setregid available"); |
b28d0864 |
786 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e |
787 | } |
56febc5e |
788 | # endif /* HAS_SETREGID */ |
789 | #endif /* HAS_SETRESGID */ |
3280af22 |
790 | PL_gid = (int)PerlProc_getgid(); |
791 | PL_egid = (int)PerlProc_getegid(); |
a0d0e21e |
792 | } |
3280af22 |
793 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e |
794 | } |
3280af22 |
795 | PL_delaymagic = 0; |
54310121 |
796 | |
797 | gimme = GIMME_V; |
798 | if (gimme == G_VOID) |
799 | SP = firstrelem - 1; |
800 | else if (gimme == G_SCALAR) { |
801 | dTARGET; |
802 | SP = firstrelem; |
803 | SETi(lastrelem - firstrelem + 1); |
804 | } |
805 | else { |
a0d0e21e |
806 | if (ary || hash) |
807 | SP = lastrelem; |
808 | else |
809 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
810 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
811 | while (relem <= SP) |
3280af22 |
812 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e |
813 | } |
54310121 |
814 | RETURN; |
a0d0e21e |
815 | } |
816 | |
8782bef2 |
817 | PP(pp_qr) |
818 | { |
819 | djSP; |
820 | register PMOP *pm = cPMOP; |
821 | SV *rv = sv_newmortal(); |
60ad88b8 |
822 | SV *sv = newSVrv(rv, "re"); |
8782bef2 |
823 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
824 | RETURNX(PUSHs(rv)); |
825 | } |
826 | |
a0d0e21e |
827 | PP(pp_match) |
828 | { |
4e35701f |
829 | djSP; dTARG; |
a0d0e21e |
830 | register PMOP *pm = cPMOP; |
831 | register char *t; |
832 | register char *s; |
833 | char *strend; |
834 | I32 global; |
835 | I32 safebase; |
836 | char *truebase; |
d9f97599 |
837 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b |
838 | bool rxtainted; |
a0d0e21e |
839 | I32 gimme = GIMME; |
840 | STRLEN len; |
748a9306 |
841 | I32 minmatch = 0; |
3280af22 |
842 | I32 oldsave = PL_savestack_ix; |
f86702cc |
843 | I32 update_minmatch = 1; |
c277df42 |
844 | SV *screamer; |
a0d0e21e |
845 | |
533c011a |
846 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
847 | TARG = POPs; |
848 | else { |
54b9620d |
849 | TARG = DEFSV; |
a0d0e21e |
850 | EXTEND(SP,1); |
851 | } |
c277df42 |
852 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e |
853 | s = SvPV(TARG, len); |
854 | strend = s + len; |
855 | if (!s) |
856 | DIE("panic: do_match"); |
b3eb6a9b |
857 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
858 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba |
859 | TAINT_NOT; |
a0d0e21e |
860 | |
48c036b1 |
861 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 |
862 | failure: |
a0d0e21e |
863 | if (gimme == G_ARRAY) |
864 | RETURN; |
865 | RETPUSHNO; |
866 | } |
867 | |
3280af22 |
868 | if (!rx->prelen && PL_curpm) { |
869 | pm = PL_curpm; |
d9f97599 |
870 | rx = pm->op_pmregexp; |
a0d0e21e |
871 | } |
d9f97599 |
872 | if (rx->minlen > len) goto failure; |
c277df42 |
873 | |
d9f97599 |
874 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
875 | && SvTYPE(rx->check_substr) == SVt_PVBM |
876 | && SvVALID(rx->check_substr)) |
c277df42 |
877 | ? TARG : Nullsv); |
a0d0e21e |
878 | truebase = t = s; |
879 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
d9f97599 |
880 | rx->startp[0] = 0; |
a0d0e21e |
881 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
882 | MAGIC* mg = mg_find(TARG, 'g'); |
565764a8 |
883 | if (mg && mg->mg_len >= 0) { |
d9f97599 |
884 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
885 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
886 | update_minmatch = 0; |
748a9306 |
887 | } |
a0d0e21e |
888 | } |
889 | } |
9d080a66 |
890 | safebase = ((gimme != G_ARRAY && !global && rx->nparens) |
891 | || SvTEMP(TARG) || PL_sawampersand) |
892 | ? REXEC_COPY_STR : 0; |
a0d0e21e |
893 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
894 | SAVEINT(PL_multiline); |
895 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
896 | } |
897 | |
898 | play_it_again: |
d9f97599 |
899 | if (global && rx->startp[0]) { |
900 | t = s = rx->endp[0]; |
901 | if ((s + rx->minlen) > strend) |
a0d0e21e |
902 | goto nope; |
f86702cc |
903 | if (update_minmatch++) |
d9f97599 |
904 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
905 | } |
d9f97599 |
906 | if (rx->check_substr) { |
907 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ |
c277df42 |
908 | if ( screamer ) { |
909 | I32 p = -1; |
a0ed51b3 |
910 | char *b; |
c277df42 |
911 | |
3280af22 |
912 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
913 | goto nope; |
a0ed51b3 |
914 | |
dfe13c55 |
915 | b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 |
916 | if (!(s = screaminstr(TARG, rx->check_substr, b - s, 0, &p, 0))) |
a0d0e21e |
917 | goto nope; |
a0ed51b3 |
918 | |
919 | if ((rx->reganch & ROPT_CHECK_ALL) |
3280af22 |
920 | && !PL_sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e |
921 | goto yup; |
922 | } |
a0ed51b3 |
923 | else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min), |
c277df42 |
924 | (unsigned char*)strend, |
411d5715 |
925 | rx->check_substr, 0))) |
a0d0e21e |
926 | goto nope; |
3280af22 |
927 | else if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) |
a0d0e21e |
928 | goto yup; |
ee027f1d |
929 | if (s && rx->check_offset_max < s - t) { |
d9f97599 |
930 | ++BmUSEFUL(rx->check_substr); |
dfe13c55 |
931 | s = (char*)HOP((U8*)s, -rx->check_offset_max); |
a0d0e21e |
932 | } |
933 | else |
934 | s = t; |
935 | } |
c277df42 |
936 | /* Now checkstring is fixed, i.e. at fixed offset from the |
937 | beginning of match, and the match is anchored at s. */ |
3280af22 |
938 | else if (!PL_multiline) { /* Anchored near beginning of string. */ |
c277df42 |
939 | I32 slen; |
dfe13c55 |
940 | char *b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 |
941 | if (*SvPVX(rx->check_substr) != *b |
d9f97599 |
942 | || ((slen = SvCUR(rx->check_substr)) > 1 |
a0ed51b3 |
943 | && memNE(SvPVX(rx->check_substr), b, slen))) |
bbce6d69 |
944 | goto nope; |
a0d0e21e |
945 | } |
a0ed51b3 |
946 | if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0 |
d9f97599 |
947 | && rx->check_substr == rx->float_substr) { |
948 | SvREFCNT_dec(rx->check_substr); |
949 | rx->check_substr = Nullsv; /* opt is being useless */ |
950 | rx->float_substr = Nullsv; |
a0d0e21e |
951 | } |
952 | } |
15e52e56 |
953 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, |
c277df42 |
954 | screamer, NULL, safebase)) |
bbce6d69 |
955 | { |
3280af22 |
956 | PL_curpm = pm; |
a0d0e21e |
957 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
958 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e |
959 | goto gotcha; |
960 | } |
961 | else |
962 | goto ret_no; |
963 | /*NOTREACHED*/ |
964 | |
965 | gotcha: |
72311751 |
966 | if (rxtainted) |
967 | RX_MATCH_TAINTED_on(rx); |
968 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
a0d0e21e |
969 | if (gimme == G_ARRAY) { |
970 | I32 iters, i, len; |
971 | |
d9f97599 |
972 | iters = rx->nparens; |
a0d0e21e |
973 | if (global && !iters) |
974 | i = 1; |
975 | else |
976 | i = 0; |
c277df42 |
977 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e |
978 | EXTEND(SP, iters + i); |
bbce6d69 |
979 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
980 | for (i = !i; i <= iters; i++) { |
981 | PUSHs(sv_newmortal()); |
982 | /*SUPPRESS 560*/ |
d9f97599 |
983 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
984 | len = rx->endp[i] - s; |
a0d0e21e |
985 | sv_setpvn(*SP, s, len); |
986 | } |
987 | } |
988 | if (global) { |
d9f97599 |
989 | truebase = rx->subbeg; |
990 | strend = rx->subend; |
991 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
992 | ++rx->endp[0]; |
c277df42 |
993 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e |
994 | goto play_it_again; |
995 | } |
f7e33566 |
996 | else if (!iters) |
bde848c5 |
997 | XPUSHs(&PL_sv_yes); |
4633a7c4 |
998 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
999 | RETURN; |
1000 | } |
1001 | else { |
1002 | if (global) { |
1003 | MAGIC* mg = 0; |
1004 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
1005 | mg = mg_find(TARG, 'g'); |
1006 | if (!mg) { |
1007 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
1008 | mg = mg_find(TARG, 'g'); |
1009 | } |
d9f97599 |
1010 | if (rx->startp[0]) { |
1011 | mg->mg_len = rx->endp[0] - rx->subbeg; |
1012 | if (rx->startp[0] == rx->endp[0]) |
748a9306 |
1013 | mg->mg_flags |= MGf_MINMATCH; |
1014 | else |
1015 | mg->mg_flags &= ~MGf_MINMATCH; |
1016 | } |
a0d0e21e |
1017 | } |
4633a7c4 |
1018 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1019 | RETPUSHYES; |
1020 | } |
1021 | |
c277df42 |
1022 | yup: /* Confirmed by check_substr */ |
72311751 |
1023 | if (rxtainted) |
1024 | RX_MATCH_TAINTED_on(rx); |
1025 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
d9f97599 |
1026 | ++BmUSEFUL(rx->check_substr); |
3280af22 |
1027 | PL_curpm = pm; |
a0d0e21e |
1028 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 |
1029 | pm->op_pmdynflags |= PMdf_USED; |
d9f97599 |
1030 | Safefree(rx->subbase); |
1031 | rx->subbase = Nullch; |
a0d0e21e |
1032 | if (global) { |
d9f97599 |
1033 | rx->subbeg = truebase; |
1034 | rx->subend = strend; |
1035 | rx->startp[0] = s; |
1036 | rx->endp[0] = s + SvCUR(rx->check_substr); |
a0d0e21e |
1037 | goto gotcha; |
1038 | } |
3280af22 |
1039 | if (PL_sawampersand) { |
a0d0e21e |
1040 | char *tmps; |
1041 | |
d9f97599 |
1042 | tmps = rx->subbase = savepvn(t, strend-t); |
1043 | rx->subbeg = tmps; |
1044 | rx->subend = tmps + (strend-t); |
1045 | tmps = rx->startp[0] = tmps + (s - t); |
1046 | rx->endp[0] = tmps + SvCUR(rx->check_substr); |
a0d0e21e |
1047 | } |
4633a7c4 |
1048 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1049 | RETPUSHYES; |
1050 | |
1051 | nope: |
d9f97599 |
1052 | if (rx->check_substr) |
1053 | ++BmUSEFUL(rx->check_substr); |
a0d0e21e |
1054 | |
1055 | ret_no: |
c90c0ff4 |
1056 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e |
1057 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1058 | MAGIC* mg = mg_find(TARG, 'g'); |
1059 | if (mg) |
565764a8 |
1060 | mg->mg_len = -1; |
a0d0e21e |
1061 | } |
1062 | } |
4633a7c4 |
1063 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1064 | if (gimme == G_ARRAY) |
1065 | RETURN; |
1066 | RETPUSHNO; |
1067 | } |
1068 | |
1069 | OP * |
8ac85365 |
1070 | do_readline(void) |
a0d0e21e |
1071 | { |
1072 | dSP; dTARGETSTACKED; |
1073 | register SV *sv; |
1074 | STRLEN tmplen = 0; |
1075 | STRLEN offset; |
760ac839 |
1076 | PerlIO *fp; |
3280af22 |
1077 | register IO *io = GvIO(PL_last_in_gv); |
533c011a |
1078 | register I32 type = PL_op->op_type; |
54310121 |
1079 | I32 gimme = GIMME_V; |
e79b0511 |
1080 | MAGIC *mg; |
a0d0e21e |
1081 | |
33c27489 |
1082 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 |
1083 | PUSHMARK(SP); |
33c27489 |
1084 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 |
1085 | PUTBACK; |
1086 | ENTER; |
54310121 |
1087 | perl_call_method("READLINE", gimme); |
e79b0511 |
1088 | LEAVE; |
1089 | SPAGAIN; |
54310121 |
1090 | if (gimme == G_SCALAR) |
1091 | SvSetMagicSV_nosteal(TARG, TOPs); |
e79b0511 |
1092 | RETURN; |
1093 | } |
a0d0e21e |
1094 | fp = Nullfp; |
1095 | if (io) { |
1096 | fp = IoIFP(io); |
1097 | if (!fp) { |
1098 | if (IoFLAGS(io) & IOf_ARGV) { |
1099 | if (IoFLAGS(io) & IOf_START) { |
1100 | IoFLAGS(io) &= ~IOf_START; |
1101 | IoLINES(io) = 0; |
3280af22 |
1102 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 |
1103 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 |
1104 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1105 | SvSETMAGIC(GvSV(PL_last_in_gv)); |
a2008d6d |
1106 | fp = IoIFP(io); |
1107 | goto have_fp; |
a0d0e21e |
1108 | } |
1109 | } |
3280af22 |
1110 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1111 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 |
1112 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e |
1113 | IoFLAGS(io) |= IOf_START; |
1114 | } |
1115 | } |
1116 | else if (type == OP_GLOB) { |
1117 | SV *tmpcmd = NEWSV(55, 0); |
1118 | SV *tmpglob = POPs; |
1119 | ENTER; |
1120 | SAVEFREESV(tmpcmd); |
1121 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1122 | /* since spawning off a process is a real performance hit */ |
1123 | { |
1124 | #include <descrip.h> |
1125 | #include <lib$routines.h> |
1126 | #include <nam.h> |
1127 | #include <rmsdef.h> |
1128 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1129 | char vmsspec[NAM$C_MAXRSS+1]; |
1130 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1131 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1132 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1133 | PerlIO *tmpfp; |
a0d0e21e |
1134 | STRLEN i; |
1135 | struct dsc$descriptor_s wilddsc |
1136 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1137 | struct dsc$descriptor_vs rsdsc |
1138 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1139 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1140 | |
1141 | /* We could find out if there's an explicit dev/dir or version |
1142 | by peeking into lib$find_file's internal context at |
1143 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1144 | but that's unsupported, so I don't want to do it now and |
1145 | have it bite someone in the future. */ |
6ad3d225 |
1146 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e |
1147 | cp = SvPV(tmpglob,i); |
1148 | for (; i; i--) { |
1149 | if (cp[i] == ';') hasver = 1; |
1150 | if (cp[i] == '.') { |
1151 | if (sts) hasver = 1; |
1152 | else sts = 1; |
1153 | } |
1154 | if (cp[i] == '/') { |
1155 | hasdir = isunix = 1; |
1156 | break; |
748a9306 |
1157 | } |
a0d0e21e |
1158 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1159 | hasdir = 1; |
1160 | break; |
1161 | } |
1162 | } |
760ac839 |
1163 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c |
1164 | Stat_t st; |
c6ed36e1 |
1165 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c |
1166 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1167 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
a0d0e21e |
1168 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1169 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1170 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1171 | end = rstr + (unsigned long int) *rslt; |
1172 | if (!hasver) while (*end != ';') end--; |
1173 | *(end++) = '\n'; *end = '\0'; |
1174 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1175 | if (hasdir) { |
f86702cc |
1176 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1177 | begin = rstr; |
1178 | } |
1179 | else { |
1180 | begin = end; |
1181 | while (*(--begin) != ']' && *begin != '>') ; |
1182 | ++begin; |
1183 | } |
760ac839 |
1184 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1185 | } |
1186 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1187 | if (ok && sts != RMS$_NMF && |
1188 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1189 | if (!ok) { |
c07a80fd |
1190 | if (!(sts & 1)) { |
1191 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1192 | } |
760ac839 |
1193 | PerlIO_close(tmpfp); |
a0d0e21e |
1194 | fp = NULL; |
1195 | } |
1196 | else { |
760ac839 |
1197 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1198 | IoTYPE(io) = '<'; |
1199 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1200 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1201 | } |
1202 | } |
1203 | } |
1204 | #else /* !VMS */ |
1205 | #ifdef DOSISH |
67955e0c |
1206 | #ifdef OS2 |
1207 | sv_setpv(tmpcmd, "for a in "); |
1208 | sv_catsv(tmpcmd, tmpglob); |
1209 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1210 | #else |
39e571d4 |
1211 | #ifdef DJGPP |
1212 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ |
1213 | sv_catsv(tmpcmd, tmpglob); |
1214 | #else |
a0d0e21e |
1215 | sv_setpv(tmpcmd, "perlglob "); |
1216 | sv_catsv(tmpcmd, tmpglob); |
1217 | sv_catpv(tmpcmd, " |"); |
39e571d4 |
1218 | #endif /* !DJGPP */ |
67955e0c |
1219 | #endif /* !OS2 */ |
1220 | #else /* !DOSISH */ |
1221 | #if defined(CSH) |
3280af22 |
1222 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e |
1223 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1224 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1225 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1226 | #else |
1227 | sv_setpv(tmpcmd, "echo "); |
1228 | sv_catsv(tmpcmd, tmpglob); |
1229 | #if 'z' - 'a' == 25 |
1230 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1231 | #else |
1232 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1233 | #endif |
1234 | #endif /* !CSH */ |
67955e0c |
1235 | #endif /* !DOSISH */ |
3280af22 |
1236 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 |
1237 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e |
1238 | fp = IoIFP(io); |
1239 | #endif /* !VMS */ |
1240 | LEAVE; |
1241 | } |
1242 | } |
1243 | else if (type == OP_GLOB) |
1244 | SP--; |
1245 | } |
1246 | if (!fp) { |
599cee73 |
1247 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) |
1248 | warner(WARN_CLOSED, |
1249 | "Read on closed filehandle <%s>", GvENAME(PL_last_in_gv)); |
54310121 |
1250 | if (gimme == G_SCALAR) { |
a0d0e21e |
1251 | (void)SvOK_off(TARG); |
1252 | PUSHTARG; |
1253 | } |
1254 | RETURN; |
1255 | } |
a2008d6d |
1256 | have_fp: |
54310121 |
1257 | if (gimme == G_SCALAR) { |
a0d0e21e |
1258 | sv = TARG; |
9607fc9c |
1259 | if (SvROK(sv)) |
1260 | sv_unref(sv); |
a0d0e21e |
1261 | (void)SvUPGRADE(sv, SVt_PV); |
1262 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1263 | if (!tmplen) |
1264 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1265 | if (type == OP_RCATLINE) |
1266 | offset = SvCUR(sv); |
1267 | else |
1268 | offset = 0; |
1269 | } |
54310121 |
1270 | else { |
1271 | sv = sv_2mortal(NEWSV(57, 80)); |
1272 | offset = 0; |
1273 | } |
a0d0e21e |
1274 | for (;;) { |
1275 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1276 | PerlIO_clearerr(fp); |
a0d0e21e |
1277 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 |
1278 | fp = nextargv(PL_last_in_gv); |
a0d0e21e |
1279 | if (fp) |
1280 | continue; |
3280af22 |
1281 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e |
1282 | IoFLAGS(io) |= IOf_START; |
1283 | } |
1284 | else if (type == OP_GLOB) { |
4eb79ab5 |
1285 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
1286 | warner(WARN_CLOSED, |
1287 | "glob failed (child exited with status %d%s)", |
1288 | STATUS_CURRENT >> 8, |
cf494569 |
1289 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 |
1290 | } |
a0d0e21e |
1291 | } |
54310121 |
1292 | if (gimme == G_SCALAR) { |
a0d0e21e |
1293 | (void)SvOK_off(TARG); |
1294 | PUSHTARG; |
1295 | } |
1296 | RETURN; |
1297 | } |
bbce6d69 |
1298 | /* This should not be marked tainted if the fp is marked clean */ |
1299 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1300 | TAINT; |
1301 | SvTAINTED_on(sv); |
1302 | } |
a0d0e21e |
1303 | IoLINES(io)++; |
71be2cbc |
1304 | SvSETMAGIC(sv); |
a0d0e21e |
1305 | XPUSHs(sv); |
a0d0e21e |
1306 | if (type == OP_GLOB) { |
1307 | char *tmps; |
1308 | |
3280af22 |
1309 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd |
1310 | tmps = SvEND(sv) - 1; |
3280af22 |
1311 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd |
1312 | *tmps = '\0'; |
1313 | SvCUR(sv)--; |
1314 | } |
1315 | } |
a0d0e21e |
1316 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1317 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1318 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1319 | break; |
3280af22 |
1320 | if (*tmps && PerlLIO_stat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e |
1321 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1322 | continue; |
1323 | } |
1324 | } |
54310121 |
1325 | if (gimme == G_ARRAY) { |
a0d0e21e |
1326 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1327 | SvLEN_set(sv, SvCUR(sv)+1); |
1328 | Renew(SvPVX(sv), SvLEN(sv), char); |
1329 | } |
1330 | sv = sv_2mortal(NEWSV(58, 80)); |
1331 | continue; |
1332 | } |
54310121 |
1333 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e |
1334 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1335 | if (SvCUR(sv) < 60) |
1336 | SvLEN_set(sv, 80); |
1337 | else |
1338 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1339 | Renew(SvPVX(sv), SvLEN(sv), char); |
1340 | } |
1341 | RETURN; |
1342 | } |
1343 | } |
1344 | |
1345 | PP(pp_enter) |
1346 | { |
4e35701f |
1347 | djSP; |
c09156bb |
1348 | register PERL_CONTEXT *cx; |
533c011a |
1349 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e |
1350 | |
54310121 |
1351 | if (gimme == -1) { |
1352 | if (cxstack_ix >= 0) |
1353 | gimme = cxstack[cxstack_ix].blk_gimme; |
1354 | else |
1355 | gimme = G_SCALAR; |
1356 | } |
a0d0e21e |
1357 | |
1358 | ENTER; |
1359 | |
1360 | SAVETMPS; |
924508f0 |
1361 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e |
1362 | |
1363 | RETURN; |
1364 | } |
1365 | |
1366 | PP(pp_helem) |
1367 | { |
4e35701f |
1368 | djSP; |
760ac839 |
1369 | HE* he; |
ae77835f |
1370 | SV **svp; |
a0d0e21e |
1371 | SV *keysv = POPs; |
a0d0e21e |
1372 | HV *hv = (HV*)POPs; |
533c011a |
1373 | U32 lval = PL_op->op_flags & OPf_MOD; |
1374 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; |
be6c24e0 |
1375 | SV *sv; |
a0d0e21e |
1376 | |
ae77835f |
1377 | if (SvTYPE(hv) == SVt_PVHV) { |
1378 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); |
97fcbf96 |
1379 | svp = he ? &HeVAL(he) : 0; |
ae77835f |
1380 | } |
1381 | else if (SvTYPE(hv) == SVt_PVAV) { |
0ebe0038 |
1382 | if (PL_op->op_private & OPpLVAL_INTRO) |
1383 | DIE("Can't localize pseudo-hash element"); |
97fcbf96 |
1384 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f |
1385 | } |
c750a3ec |
1386 | else { |
a0d0e21e |
1387 | RETPUSHUNDEF; |
c750a3ec |
1388 | } |
a0d0e21e |
1389 | if (lval) { |
3280af22 |
1390 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
1391 | SV* lv; |
1392 | SV* key2; |
1393 | if (!defer) |
22c35a8c |
1394 | DIE(PL_no_helem, SvPV(keysv, PL_na)); |
68dc0745 |
1395 | lv = sv_newmortal(); |
1396 | sv_upgrade(lv, SVt_PVLV); |
1397 | LvTYPE(lv) = 'y'; |
1398 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); |
1399 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ |
1400 | LvTARG(lv) = SvREFCNT_inc(hv); |
1401 | LvTARGLEN(lv) = 1; |
1402 | PUSHs(lv); |
1403 | RETURN; |
1404 | } |
533c011a |
1405 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f |
1406 | if (HvNAME(hv) && isGV(*svp)) |
533c011a |
1407 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc |
1408 | else |
161b7d16 |
1409 | save_helem(hv, keysv, svp); |
5f05dabc |
1410 | } |
533c011a |
1411 | else if (PL_op->op_private & OPpDEREF) |
1412 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
1413 | } |
3280af22 |
1414 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
1415 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1416 | * Pushing the magical RHS on to the stack is useless, since |
1417 | * that magic is soon destined to be misled by the local(), |
1418 | * and thus the later pp_sassign() will fail to mg_get() the |
1419 | * old value. This should also cure problems with delayed |
1420 | * mg_get()s. GSAR 98-07-03 */ |
1421 | if (!lval && SvGMAGICAL(sv)) |
1422 | sv = sv_mortalcopy(sv); |
1423 | PUSHs(sv); |
a0d0e21e |
1424 | RETURN; |
1425 | } |
1426 | |
1427 | PP(pp_leave) |
1428 | { |
4e35701f |
1429 | djSP; |
c09156bb |
1430 | register PERL_CONTEXT *cx; |
a0d0e21e |
1431 | register SV **mark; |
1432 | SV **newsp; |
1433 | PMOP *newpm; |
1434 | I32 gimme; |
1435 | |
533c011a |
1436 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e |
1437 | cx = &cxstack[cxstack_ix]; |
3280af22 |
1438 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e |
1439 | } |
1440 | |
1441 | POPBLOCK(cx,newpm); |
1442 | |
533c011a |
1443 | gimme = OP_GIMME(PL_op, -1); |
54310121 |
1444 | if (gimme == -1) { |
1445 | if (cxstack_ix >= 0) |
1446 | gimme = cxstack[cxstack_ix].blk_gimme; |
1447 | else |
1448 | gimme = G_SCALAR; |
1449 | } |
a0d0e21e |
1450 | |
a1f49e72 |
1451 | TAINT_NOT; |
54310121 |
1452 | if (gimme == G_VOID) |
1453 | SP = newsp; |
1454 | else if (gimme == G_SCALAR) { |
1455 | MARK = newsp + 1; |
1456 | if (MARK <= SP) |
1457 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1458 | *MARK = TOPs; |
1459 | else |
1460 | *MARK = sv_mortalcopy(TOPs); |
a0d0e21e |
1461 | else { |
54310121 |
1462 | MEXTEND(mark,0); |
3280af22 |
1463 | *MARK = &PL_sv_undef; |
a0d0e21e |
1464 | } |
54310121 |
1465 | SP = MARK; |
a0d0e21e |
1466 | } |
54310121 |
1467 | else if (gimme == G_ARRAY) { |
a1f49e72 |
1468 | /* in case LEAVE wipes old return values */ |
1469 | for (mark = newsp + 1; mark <= SP; mark++) { |
1470 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { |
a0d0e21e |
1471 | *mark = sv_mortalcopy(*mark); |
a1f49e72 |
1472 | TAINT_NOT; /* Each item is independent */ |
1473 | } |
1474 | } |
a0d0e21e |
1475 | } |
3280af22 |
1476 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e |
1477 | |
1478 | LEAVE; |
1479 | |
1480 | RETURN; |
1481 | } |
1482 | |
1483 | PP(pp_iter) |
1484 | { |
4e35701f |
1485 | djSP; |
c09156bb |
1486 | register PERL_CONTEXT *cx; |
5f05dabc |
1487 | SV* sv; |
4633a7c4 |
1488 | AV* av; |
a0d0e21e |
1489 | |
924508f0 |
1490 | EXTEND(SP, 1); |
a0d0e21e |
1491 | cx = &cxstack[cxstack_ix]; |
6b35e009 |
1492 | if (CxTYPE(cx) != CXt_LOOP) |
a0d0e21e |
1493 | DIE("panic: pp_iter"); |
1494 | |
4633a7c4 |
1495 | av = cx->blk_loop.iterary; |
89ea2908 |
1496 | if (SvTYPE(av) != SVt_PVAV) { |
1497 | /* iterate ($min .. $max) */ |
1498 | if (cx->blk_loop.iterlval) { |
1499 | /* string increment */ |
1500 | register SV* cur = cx->blk_loop.iterlval; |
1501 | STRLEN maxlen; |
1502 | char *max = SvPV((SV*)av, maxlen); |
1503 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { |
eaa5c2d6 |
1504 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1505 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1506 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1507 | { |
eaa5c2d6 |
1508 | /* safe to reuse old SV */ |
1509 | sv_setsv(*cx->blk_loop.itervar, cur); |
1510 | } |
1511 | else |
1512 | #endif |
1513 | { |
1514 | /* we need a fresh SV every time so that loop body sees a |
1515 | * completely new SV for closures/references to work as |
1516 | * they used to */ |
1517 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1518 | *cx->blk_loop.itervar = newSVsv(cur); |
1519 | } |
89ea2908 |
1520 | if (strEQ(SvPVX(cur), max)) |
1521 | sv_setiv(cur, 0); /* terminate next time */ |
1522 | else |
1523 | sv_inc(cur); |
1524 | RETPUSHYES; |
1525 | } |
1526 | RETPUSHNO; |
1527 | } |
1528 | /* integer increment */ |
1529 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) |
1530 | RETPUSHNO; |
7f61b687 |
1531 | |
eaa5c2d6 |
1532 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 |
1533 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1534 | && !SvMAGICAL(*cx->blk_loop.itervar)) |
1535 | { |
eaa5c2d6 |
1536 | /* safe to reuse old SV */ |
1537 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); |
1538 | } |
1539 | else |
1540 | #endif |
1541 | { |
1542 | /* we need a fresh SV every time so that loop body sees a |
1543 | * completely new SV for closures/references to work as they |
1544 | * used to */ |
1545 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1546 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); |
1547 | } |
89ea2908 |
1548 | RETPUSHYES; |
1549 | } |
1550 | |
1551 | /* iterate array */ |
3280af22 |
1552 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 |
1553 | RETPUSHNO; |
a0d0e21e |
1554 | |
7a4c00b4 |
1555 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e |
1556 | |
93965878 |
1557 | if (sv = (SvMAGICAL(av)) |
1558 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) |
1559 | : AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1560 | SvTEMP_off(sv); |
a0d0e21e |
1561 | else |
3280af22 |
1562 | sv = &PL_sv_undef; |
1563 | if (av != PL_curstack && SvIMMORTAL(sv)) { |
5f05dabc |
1564 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1565 | if (lv && SvREFCNT(lv) > 1) { |
1566 | SvREFCNT_dec(lv); |
1567 | lv = Nullsv; |
1568 | } |
5f05dabc |
1569 | if (lv) |
1570 | SvREFCNT_dec(LvTARG(lv)); |
1571 | else { |
68dc0745 |
1572 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc |
1573 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc |
1574 | LvTYPE(lv) = 'y'; |
68dc0745 |
1575 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc |
1576 | } |
1577 | LvTARG(lv) = SvREFCNT_inc(av); |
1578 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
8ac85365 |
1579 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc |
1580 | sv = (SV*)lv; |
1581 | } |
a0d0e21e |
1582 | |
7a4c00b4 |
1583 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1584 | RETPUSHYES; |
1585 | } |
1586 | |
1587 | PP(pp_subst) |
1588 | { |
4e35701f |
1589 | djSP; dTARG; |
a0d0e21e |
1590 | register PMOP *pm = cPMOP; |
1591 | PMOP *rpm = pm; |
1592 | register SV *dstr; |
1593 | register char *s; |
1594 | char *strend; |
1595 | register char *m; |
1596 | char *c; |
1597 | register char *d; |
1598 | STRLEN clen; |
1599 | I32 iters = 0; |
1600 | I32 maxiters; |
1601 | register I32 i; |
1602 | bool once; |
71be2cbc |
1603 | bool rxtainted; |
a0d0e21e |
1604 | char *orig; |
1605 | I32 safebase; |
d9f97599 |
1606 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e |
1607 | STRLEN len; |
1608 | int force_on_match = 0; |
3280af22 |
1609 | I32 oldsave = PL_savestack_ix; |
c277df42 |
1610 | I32 update_minmatch = 1; |
1611 | SV *screamer; |
a0d0e21e |
1612 | |
5cd24f17 |
1613 | /* known replacement string? */ |
1614 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; |
533c011a |
1615 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e |
1616 | TARG = POPs; |
1617 | else { |
54b9620d |
1618 | TARG = DEFSV; |
a0d0e21e |
1619 | EXTEND(SP,1); |
8ec5e241 |
1620 | } |
68dc0745 |
1621 | if (SvREADONLY(TARG) |
1622 | || (SvTYPE(TARG) > SVt_PVLV |
1623 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) |
22c35a8c |
1624 | croak(PL_no_modify); |
8ec5e241 |
1625 | PUTBACK; |
1626 | |
a0d0e21e |
1627 | s = SvPV(TARG, len); |
68dc0745 |
1628 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e |
1629 | force_on_match = 1; |
b3eb6a9b |
1630 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 |
1631 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1632 | if (PL_tainted) |
b3eb6a9b |
1633 | rxtainted |= 2; |
9212bbba |
1634 | TAINT_NOT; |
a0d0e21e |
1635 | |
1636 | force_it: |
1637 | if (!pm || !s) |
1638 | DIE("panic: do_subst"); |
1639 | |
1640 | strend = s + len; |
2beec16e |
1641 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1642 | position, once with zero-length, |
1643 | second time with non-zero. */ |
a0d0e21e |
1644 | |
3280af22 |
1645 | if (!rx->prelen && PL_curpm) { |
1646 | pm = PL_curpm; |
d9f97599 |
1647 | rx = pm->op_pmregexp; |
a0d0e21e |
1648 | } |
d9f97599 |
1649 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1650 | && SvTYPE(rx->check_substr) == SVt_PVBM |
1651 | && SvVALID(rx->check_substr)) |
c277df42 |
1652 | ? TARG : Nullsv); |
9d080a66 |
1653 | safebase = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
1654 | ? REXEC_COPY_STR : 0; |
a0d0e21e |
1655 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 |
1656 | SAVEINT(PL_multiline); |
1657 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; |
a0d0e21e |
1658 | } |
1659 | orig = m = s; |
d9f97599 |
1660 | if (rx->check_substr) { |
1661 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ |
c277df42 |
1662 | if (screamer) { |
1663 | I32 p = -1; |
a0ed51b3 |
1664 | char *b; |
c277df42 |
1665 | |
3280af22 |
1666 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e |
1667 | goto nope; |
a0ed51b3 |
1668 | |
dfe13c55 |
1669 | b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 |
1670 | if (!(s = screaminstr(TARG, rx->check_substr, b - s, 0, &p, 0))) |
a0d0e21e |
1671 | goto nope; |
1672 | } |
a0ed51b3 |
1673 | else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min), |
c277df42 |
1674 | (unsigned char*)strend, |
411d5715 |
1675 | rx->check_substr, 0))) |
a0d0e21e |
1676 | goto nope; |
d9f97599 |
1677 | if (s && rx->check_offset_max < s - m) { |
1678 | ++BmUSEFUL(rx->check_substr); |
dfe13c55 |
1679 | s = (char*)HOP((U8*)s, -rx->check_offset_max); |
a0d0e21e |
1680 | } |
1681 | else |
1682 | s = m; |
1683 | } |
c277df42 |
1684 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1685 | beginning of match, and the match is anchored at s. */ |
3280af22 |
1686 | else if (!PL_multiline) { /* Anchored at beginning of string. */ |
c277df42 |
1687 | I32 slen; |
dfe13c55 |
1688 | char *b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 |
1689 | if (*SvPVX(rx->check_substr) != *b |
d9f97599 |
1690 | || ((slen = SvCUR(rx->check_substr)) > 1 |
a0ed51b3 |
1691 | && memNE(SvPVX(rx->check_substr), b, slen))) |
bbce6d69 |
1692 | goto nope; |
a0d0e21e |
1693 | } |
a0ed51b3 |
1694 | if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0 |
d9f97599 |
1695 | && rx->check_substr == rx->float_substr) { |
1696 | SvREFCNT_dec(rx->check_substr); |
1697 | rx->check_substr = Nullsv; /* opt is being useless */ |
1698 | rx->float_substr = Nullsv; |
a0d0e21e |
1699 | } |
1700 | } |
71be2cbc |
1701 | |
1702 | /* only replace once? */ |
a0d0e21e |
1703 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1704 | |
1705 | /* known replacement string? */ |
5cd24f17 |
1706 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc |
1707 | |
1708 | /* can do inplace substitution? */ |
d9f97599 |
1709 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1710 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
15e52e56 |
1711 | if (!CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
8ec5e241 |
1712 | SPAGAIN; |
3280af22 |
1713 | PUSHs(&PL_sv_no); |
71be2cbc |
1714 | LEAVE_SCOPE(oldsave); |
1715 | RETURN; |
1716 | } |
1717 | if (force_on_match) { |
1718 | force_on_match = 0; |
1719 | s = SvPV_force(TARG, len); |
1720 | goto force_it; |
1721 | } |
71be2cbc |
1722 | d = s; |
3280af22 |
1723 | PL_curpm = pm; |
71be2cbc |
1724 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1725 | if (once) { |
48c036b1 |
1726 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 |
1727 | if (rx->subbase) { |
1728 | m = orig + (rx->startp[0] - rx->subbase); |
1729 | d = orig + (rx->endp[0] - rx->subbase); |
c277df42 |
1730 | } else { |
d9f97599 |
1731 | m = rx->startp[0]; |
1732 | d = rx->endp[0]; |
c277df42 |
1733 | } |
71be2cbc |
1734 | s = orig; |
1735 | if (m - s > strend - d) { /* faster to shorten from end */ |
1736 | if (clen) { |
1737 | Copy(c, m, clen, char); |
1738 | m += clen; |
a0d0e21e |
1739 | } |
71be2cbc |
1740 | i = strend - d; |
1741 | if (i > 0) { |
1742 | Move(d, m, i, char); |
1743 | m += i; |
a0d0e21e |
1744 | } |
71be2cbc |
1745 | *m = '\0'; |
1746 | SvCUR_set(TARG, m - s); |
1747 | } |
1748 | /*SUPPRESS 560*/ |
1749 | else if (i = m - s) { /* faster from front */ |
1750 | d -= clen; |
1751 | m = d; |
1752 | sv_chop(TARG, d-i); |
1753 | s += i; |
1754 | while (i--) |
1755 | *--d = *--s; |
1756 | if (clen) |
1757 | Copy(c, m, clen, char); |
1758 | } |
1759 | else if (clen) { |
1760 | d -= clen; |
1761 | sv_chop(TARG, d); |
1762 | Copy(c, d, clen, char); |
1763 | } |
1764 | else { |
1765 | sv_chop(TARG, d); |
1766 | } |
48c036b1 |
1767 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1768 | SPAGAIN; |
3280af22 |
1769 | PUSHs(&PL_sv_yes); |
71be2cbc |
1770 | } |
1771 | else { |
71be2cbc |
1772 | do { |
1773 | if (iters++ > maxiters) |
1774 | DIE("Substitution loop"); |
d9f97599 |
1775 | rxtainted |= RX_MATCH_TAINTED(rx); |
1776 | m = rx->startp[0]; |
71be2cbc |
1777 | /*SUPPRESS 560*/ |
1778 | if (i = m - s) { |
1779 | if (s != d) |
1780 | Move(s, d, i, char); |
1781 | d += i; |
a0d0e21e |
1782 | } |
71be2cbc |
1783 | if (clen) { |
1784 | Copy(c, d, clen, char); |
1785 | d += clen; |
1786 | } |
d9f97599 |
1787 | s = rx->endp[0]; |
15e52e56 |
1788 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
c277df42 |
1789 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc |
1790 | if (s != d) { |
1791 | i = strend - s; |
1792 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1793 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1794 | } |
48c036b1 |
1795 | TAINT_IF(rxtainted & 1); |
8ec5e241 |
1796 | SPAGAIN; |
71be2cbc |
1797 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1798 | } |
71be2cbc |
1799 | (void)SvPOK_only(TARG); |
48c036b1 |
1800 | TAINT_IF(rxtainted); |
8ec5e241 |
1801 | if (SvSMAGICAL(TARG)) { |
1802 | PUTBACK; |
1803 | mg_set(TARG); |
1804 | SPAGAIN; |
1805 | } |
9212bbba |
1806 | SvTAINT(TARG); |
71be2cbc |
1807 | LEAVE_SCOPE(oldsave); |
1808 | RETURN; |
a0d0e21e |
1809 | } |
71be2cbc |
1810 | |
15e52e56 |
1811 | if (CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e |
1812 | if (force_on_match) { |
1813 | force_on_match = 0; |
1814 | s = SvPV_force(TARG, len); |
1815 | goto force_it; |
1816 | } |
48c036b1 |
1817 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 |
1818 | dstr = NEWSV(25, len); |
a0d0e21e |
1819 | sv_setpvn(dstr, m, s-m); |
3280af22 |
1820 | PL_curpm = pm; |
a0d0e21e |
1821 | if (!c) { |
c09156bb |
1822 | register PERL_CONTEXT *cx; |
8ec5e241 |
1823 | SPAGAIN; |
a0d0e21e |
1824 | PUSHSUBST(cx); |
1825 | RETURNOP(cPMOP->op_pmreplroot); |
1826 | } |
1827 | do { |
1828 | if (iters++ > maxiters) |
1829 | DIE("Substitution loop"); |
d9f97599 |
1830 | rxtainted |= RX_MATCH_TAINTED(rx); |
1831 | if (rx->subbase && rx->subbase != orig) { |
a0d0e21e |
1832 | m = s; |
1833 | s = orig; |
d9f97599 |
1834 | orig = rx->subbase; |
a0d0e21e |
1835 | s = orig + (m - s); |
1836 | strend = s + (strend - m); |
1837 | } |
d9f97599 |
1838 | m = rx->startp[0]; |
a0d0e21e |
1839 | sv_catpvn(dstr, s, m-s); |
d9f97599 |
1840 | s = rx->endp[0]; |
a0d0e21e |
1841 | if (clen) |
1842 | sv_catpvn(dstr, c, clen); |
1843 | if (once) |
1844 | break; |
15e52e56 |
1845 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e |
1846 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1847 | |
4633a7c4 |
1848 | (void)SvOOK_off(TARG); |
cb0b1708 |
1849 | Safefree(SvPVX(TARG)); |
748a9306 |
1850 | SvPVX(TARG) = SvPVX(dstr); |
1851 | SvCUR_set(TARG, SvCUR(dstr)); |
1852 | SvLEN_set(TARG, SvLEN(dstr)); |
1853 | SvPVX(dstr) = 0; |
1854 | sv_free(dstr); |
1855 | |
48c036b1 |
1856 | TAINT_IF(rxtainted & 1); |
f878fbec |
1857 | SPAGAIN; |
48c036b1 |
1858 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1859 | |
a0d0e21e |
1860 | (void)SvPOK_only(TARG); |
48c036b1 |
1861 | TAINT_IF(rxtainted); |
a0d0e21e |
1862 | SvSETMAGIC(TARG); |
9212bbba |
1863 | SvTAINT(TARG); |
4633a7c4 |
1864 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1865 | RETURN; |
1866 | } |
5cd24f17 |
1867 | goto ret_no; |
a0d0e21e |
1868 | |
1869 | nope: |
d9f97599 |
1870 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 |
1871 | |
8ec5e241 |
1872 | ret_no: |
1873 | SPAGAIN; |
3280af22 |
1874 | PUSHs(&PL_sv_no); |
4633a7c4 |
1875 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1876 | RETURN; |
1877 | } |
1878 | |
1879 | PP(pp_grepwhile) |
1880 | { |
4e35701f |
1881 | djSP; |
a0d0e21e |
1882 | |
1883 | if (SvTRUEx(POPs)) |
3280af22 |
1884 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1885 | ++*PL_markstack_ptr; |
a0d0e21e |
1886 | LEAVE; /* exit inner scope */ |
1887 | |
1888 | /* All done yet? */ |
3280af22 |
1889 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e |
1890 | I32 items; |
54310121 |
1891 | I32 gimme = GIMME_V; |
a0d0e21e |
1892 | |
1893 | LEAVE; /* exit outer scope */ |
1894 | (void)POPMARK; /* pop src */ |
3280af22 |
1895 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e |
1896 | (void)POPMARK; /* pop dst */ |
3280af22 |
1897 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 |
1898 | if (gimme == G_SCALAR) { |
a0d0e21e |
1899 | dTARGET; |
1900 | XPUSHi(items); |
a0d0e21e |
1901 | } |
54310121 |
1902 | else if (gimme == G_ARRAY) |
1903 | SP += items; |
a0d0e21e |
1904 | RETURN; |
1905 | } |
1906 | else { |
1907 | SV *src; |
1908 | |
1909 | ENTER; /* enter inner scope */ |
3280af22 |
1910 | SAVESPTR(PL_curpm); |
a0d0e21e |
1911 | |
3280af22 |
1912 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e |
1913 | SvTEMP_off(src); |
54b9620d |
1914 | DEFSV = src; |
a0d0e21e |
1915 | |
1916 | RETURNOP(cLOGOP->op_other); |
1917 | } |
1918 | } |
1919 | |
1920 | PP(pp_leavesub) |
1921 | { |
4e35701f |
1922 | djSP; |
a0d0e21e |
1923 | SV **mark; |
1924 | SV **newsp; |
1925 | PMOP *newpm; |
1926 | I32 gimme; |
c09156bb |
1927 | register PERL_CONTEXT *cx; |
f86702cc |
1928 | struct block_sub cxsub; |
a0d0e21e |
1929 | |
1930 | POPBLOCK(cx,newpm); |
f86702cc |
1931 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1932 | |
a1f49e72 |
1933 | TAINT_NOT; |
a0d0e21e |
1934 | if (gimme == G_SCALAR) { |
1935 | MARK = newsp + 1; |
a29cdaf0 |
1936 | if (MARK <= SP) { |
1937 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { |
1938 | if (SvTEMP(TOPs)) { |
1939 | *MARK = SvREFCNT_inc(TOPs); |
1940 | FREETMPS; |
1941 | sv_2mortal(*MARK); |
1942 | } else { |
1943 | FREETMPS; |
1944 | *MARK = sv_mortalcopy(TOPs); |
1945 | } |
1946 | } else |
1947 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
1948 | } else { |
f86702cc |
1949 | MEXTEND(MARK, 0); |
3280af22 |
1950 | *MARK = &PL_sv_undef; |
a0d0e21e |
1951 | } |
1952 | SP = MARK; |
1953 | } |
54310121 |
1954 | else if (gimme == G_ARRAY) { |
f86702cc |
1955 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 |
1956 | if (!SvTEMP(*MARK)) { |
f86702cc |
1957 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 |
1958 | TAINT_NOT; /* Each item is independent */ |
1959 | } |
f86702cc |
1960 | } |
a0d0e21e |
1961 | } |
f86702cc |
1962 | PUTBACK; |
1963 | |
1964 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
3280af22 |
1965 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1966 | |
1967 | LEAVE; |
a0d0e21e |
1968 | return pop_return(); |
1969 | } |
1970 | |
76e3520e |
1971 | STATIC CV * |
8ac85365 |
1972 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 |
1973 | { |
1974 | dTHR; |
3280af22 |
1975 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 |
1976 | |
1977 | if (!PERLDB_SUB_NN) { |
1978 | GV *gv = CvGV(cv); |
1979 | |
1980 | save_item(dbsv); |
1981 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1982 | || strEQ(GvNAME(gv), "END") |
1983 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1984 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) |
1985 | && (gv = (GV*)*svp) ))) { |
1986 | /* Use GV from the stack as a fallback. */ |
1987 | /* GV is potentially non-unique, or contain different CV. */ |
1988 | sv_setsv(dbsv, newRV((SV*)cv)); |
1989 | } |
1990 | else { |
1991 | gv_efullname3(dbsv, gv, Nullch); |
1992 | } |
3de9ffa1 |
1993 | } |
1994 | else { |
491527d0 |
1995 | SvUPGRADE(dbsv, SVt_PVIV); |
1996 | SvIOK_on(dbsv); |
1997 | SAVEIV(SvIVX(dbsv)); |
1998 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ |
3de9ffa1 |
1999 | } |
491527d0 |
2000 | |
3de9ffa1 |
2001 | if (CvXSUB(cv)) |
3280af22 |
2002 | PL_curcopdb = PL_curcop; |
2003 | cv = GvCV(PL_DBsub); |
3de9ffa1 |
2004 | return cv; |
2005 | } |
2006 | |
a0d0e21e |
2007 | PP(pp_entersub) |
2008 | { |
4e35701f |
2009 | djSP; dPOPss; |
a0d0e21e |
2010 | GV *gv; |
2011 | HV *stash; |
2012 | register CV *cv; |
c09156bb |
2013 | register PERL_CONTEXT *cx; |
5d94fbed |
2014 | I32 gimme; |
533c011a |
2015 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
2016 | |
2017 | if (!sv) |
2018 | DIE("Not a CODE reference"); |
2019 | switch (SvTYPE(sv)) { |
2020 | default: |
2021 | if (!SvROK(sv)) { |
748a9306 |
2022 | char *sym; |
2023 | |
3280af22 |
2024 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a |
2025 | if (hasargs) |
3280af22 |
2026 | SP = PL_stack_base + POPMARK; |
a0d0e21e |
2027 | RETURN; |
fb73857a |
2028 | } |
15ff848f |
2029 | if (SvGMAGICAL(sv)) { |
2030 | mg_get(sv); |
2031 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
2032 | } |
2033 | else |
3280af22 |
2034 | sym = SvPV(sv, PL_na); |
15ff848f |
2035 | if (!sym) |
22c35a8c |
2036 | DIE(PL_no_usym, "a subroutine"); |
533c011a |
2037 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c |
2038 | DIE(PL_no_symref, sym, "a subroutine"); |
748a9306 |
2039 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
2040 | break; |
2041 | } |
f5284f61 |
2042 | { |
2043 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
2044 | tryAMAGICunDEREF(to_cv); |
2045 | } |
a0d0e21e |
2046 | cv = (CV*)SvRV(sv); |
2047 | if (SvTYPE(cv) == SVt_PVCV) |
2048 | break; |
2049 | /* FALL THROUGH */ |
2050 | case SVt_PVHV: |
2051 | case SVt_PVAV: |
2052 | DIE("Not a CODE reference"); |
2053 | case SVt_PVCV: |
2054 | cv = (CV*)sv; |
2055 | break; |
2056 | case SVt_PVGV: |
8ebc5c01 |
2057 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
2058 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
2059 | break; |
2060 | } |
2061 | |
2062 | ENTER; |
2063 | SAVETMPS; |
2064 | |
2065 | retry: |
2066 | if (!cv) |
2067 | DIE("Not a CODE reference"); |
2068 | |
2069 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
2070 | GV* autogv; |
22239a37 |
2071 | SV* sub_name; |
44a8e56a |
2072 | |
2073 | /* anonymous or undef'd function leaves us no recourse */ |
2074 | if (CvANON(cv) || !(gv = CvGV(cv))) |
2075 | DIE("Undefined subroutine called"); |
2076 | /* autoloaded stub? */ |
2077 | if (cv != GvCV(gv)) { |
2078 | cv = GvCV(gv); |
2079 | goto retry; |
a0d0e21e |
2080 | } |
44a8e56a |
2081 | /* should call AUTOLOAD now? */ |
54310121 |
2082 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2083 | FALSE))) |
2084 | { |
44a8e56a |
2085 | cv = GvCV(autogv); |
2086 | goto retry; |
a0d0e21e |
2087 | } |
44a8e56a |
2088 | /* sorry */ |
22239a37 |
2089 | sub_name = sv_newmortal(); |
2090 | gv_efullname3(sub_name, gv, Nullch); |
2091 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); |
a0d0e21e |
2092 | } |
2093 | |
54310121 |
2094 | gimme = GIMME_V; |
533c011a |
2095 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 |
2096 | cv = get_db_sub(&sv, cv); |
3de9ffa1 |
2097 | if (!cv) |
2098 | DIE("No DBsub routine"); |
a0d0e21e |
2099 | |
11343788 |
2100 | #ifdef USE_THREADS |
3de9ffa1 |
2101 | /* |
2102 | * First we need to check if the sub or method requires locking. |
458fb581 |
2103 | * If so, we gain a lock on the CV, the first argument or the |
2104 | * stash (for static methods), as appropriate. This has to be |
2105 | * inline because for FAKE_THREADS, COND_WAIT inlines code to |
2106 | * reschedule by returning a new op. |
3de9ffa1 |
2107 | */ |
11343788 |
2108 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab |
2109 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2110 | MAGIC *mg; |
2111 | if (CvFLAGS(cv) & CVf_METHOD) { |
533c011a |
2112 | if (SP > PL_stack_base + TOPMARK) |
2113 | sv = *(PL_stack_base + TOPMARK + 1); |
77a005ab |
2114 | else { |
2115 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2116 | croak("no argument for locked method call"); |
2117 | } |
2118 | if (SvROK(sv)) |
2119 | sv = SvRV(sv); |
458fb581 |
2120 | else { |
2121 | STRLEN len; |
2122 | char *stashname = SvPV(sv, len); |
2123 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); |
2124 | } |
77a005ab |
2125 | } |
2126 | else { |
2127 | sv = (SV*)cv; |
2128 | } |
2129 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
2130 | mg = condpair_magic(sv); |
2131 | MUTEX_LOCK(MgMUTEXP(mg)); |
2132 | if (MgOWNER(mg) == thr) |
2133 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2134 | else { |
2135 | while (MgOWNER(mg)) |
2136 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
2137 | MgOWNER(mg) = thr; |
8b73bbec |
2138 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 |
2139 | thr, sv);) |
77a005ab |
2140 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2141 | save_destructor(unlock_condpair, sv); |
11343788 |
2142 | } |
77a005ab |
2143 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 |
2144 | } |
3de9ffa1 |
2145 | /* |
2146 | * Now we have permission to enter the sub, we must distinguish |
2147 | * four cases. (0) It's an XSUB (in which case we don't care |
2148 | * about ownership); (1) it's ours already (and we're recursing); |
2149 | * (2) it's free (but we may already be using a cached clone); |
2150 | * (3) another thread owns it. Case (1) is easy: we just use it. |
2151 | * Case (2) means we look for a clone--if we have one, use it |
2152 | * otherwise grab ownership of cv. Case (3) means we look for a |
2153 | * clone (for non-XSUBs) and have to create one if we don't |
2154 | * already have one. |
2155 | * Why look for a clone in case (2) when we could just grab |
2156 | * ownership of cv straight away? Well, we could be recursing, |
2157 | * i.e. we originally tried to enter cv while another thread |
2158 | * owned it (hence we used a clone) but it has been freed up |
2159 | * and we're now recursing into it. It may or may not be "better" |
2160 | * to use the clone but at least CvDEPTH can be trusted. |
2161 | */ |
2162 | if (CvOWNER(cv) == thr || CvXSUB(cv)) |
2163 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
11343788 |
2164 | else { |
3de9ffa1 |
2165 | /* Case (2) or (3) */ |
2166 | SV **svp; |
2167 | |
11343788 |
2168 | /* |
3de9ffa1 |
2169 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2170 | * do the hv_fetch? We might find someone has pinched it |
2171 | * when we look again, in which case we would be in case |
2172 | * (3) instead of (2) so we'd have to clone. Would the fact |
2173 | * that we released the mutex more quickly make up for this? |
2174 | */ |
533c011a |
2175 | if (PL_threadnum && |
6ee623d5 |
2176 | (svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
2177 | { |
3de9ffa1 |
2178 | /* We already have a clone to use */ |
11343788 |
2179 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 |
2180 | cv = *(CV**)svp; |
8b73bbec |
2181 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2182 | "entersub: %p already has clone %p:%s\n", |
2183 | thr, cv, SvPEEK((SV*)cv))); |
3de9ffa1 |
2184 | CvOWNER(cv) = thr; |
2185 | SvREFCNT_inc(cv); |
2186 | if (CvDEPTH(cv) == 0) |
2187 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
2188 | } |
11343788 |
2189 | else { |
3de9ffa1 |
2190 | /* (2) => grab ownership of cv. (3) => make clone */ |
2191 | if (!CvOWNER(cv)) { |
2192 | CvOWNER(cv) = thr; |
2193 | SvREFCNT_inc(cv); |
11343788 |
2194 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2195 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2196 | "entersub: %p grabbing %p:%s in stash %s\n", |
2197 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? |
3de9ffa1 |
2198 | HvNAME(CvSTASH(cv)) : "(none)")); |
2199 | } else { |
2200 | /* Make a new clone. */ |
2201 | CV *clonecv; |
2202 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ |
2203 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec |
2204 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 |
2205 | "entersub: %p cloning %p:%s\n", |
2206 | thr, cv, SvPEEK((SV*)cv)))); |
3de9ffa1 |
2207 | /* |
2208 | * We're creating a new clone so there's no race |
2209 | * between the original MUTEX_UNLOCK and the |
2210 | * SvREFCNT_inc since no one will be trying to undef |
2211 | * it out from underneath us. At least, I don't think |
2212 | * there's a race... |
2213 | */ |
2214 | clonecv = cv_clone(cv); |
2215 | SvREFCNT_dec(cv); /* finished with this */ |
199100c8 |
2216 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 |
2217 | CvOWNER(clonecv) = thr; |
2218 | cv = clonecv; |
11343788 |
2219 | SvREFCNT_inc(cv); |
11343788 |
2220 | } |
8b73bbec |
2221 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 |
2222 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2223 | CvDEPTH(cv));); |
2224 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); |
11343788 |
2225 | } |
3de9ffa1 |
2226 | } |
11343788 |
2227 | #endif /* USE_THREADS */ |
2228 | |
a0d0e21e |
2229 | if (CvXSUB(cv)) { |
2230 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
2231 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
2232 | dMARK; |
2233 | register I32 items = SP - MARK; |
67955e0c |
2234 | /* We dont worry to copy from @_. */ |
924508f0 |
2235 | while (SP > mark) { |
2236 | SP[1] = SP[0]; |
2237 | SP--; |
a0d0e21e |
2238 | } |
3280af22 |
2239 | PL_stack_sp = mark + 1; |
ecfc5424 |
2240 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2241 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 |
2242 | MARK - PL_stack_base + 1, |
ecfc5424 |
2243 | items); |
3280af22 |
2244 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e |
2245 | } |
2246 | else { |
748a9306 |
2247 | I32 markix = TOPMARK; |
2248 | |
a0d0e21e |
2249 | PUTBACK; |
67955e0c |
2250 | |
2251 | if (!hasargs) { |
2252 | /* Need to copy @_ to stack. Alternative may be to |
2253 | * switch stack to @_, and copy return values |
2254 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
6d4ff0d2 |
2255 | AV* av; |
2256 | I32 items; |
2257 | #ifdef USE_THREADS |
533c011a |
2258 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2259 | #else |
3280af22 |
2260 | av = GvAV(PL_defgv); |
6d4ff0d2 |
2261 | #endif /* USE_THREADS */ |
93965878 |
2262 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c |
2263 | |
2264 | if (items) { |
2265 | /* Mark is at the end of the stack. */ |
924508f0 |
2266 | EXTEND(SP, items); |
2267 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2268 | SP += items; |
67955e0c |
2269 | PUTBACK ; |
2270 | } |
2271 | } |
3280af22 |
2272 | if (PL_curcopdb) { /* We assume that the first |
67955e0c |
2273 | XSUB in &DB::sub is the |
2274 | called one. */ |
3280af22 |
2275 | SAVESPTR(PL_curcop); |
2276 | PL_curcop = PL_curcopdb; |
2277 | PL_curcopdb = NULL; |
67955e0c |
2278 | } |
2279 | /* Do we need to open block here? XXXX */ |
1d583055 |
2280 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 |
2281 | |
2282 | /* Enforce some sanity in scalar context. */ |
3280af22 |
2283 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2284 | if (markix > PL_stack_sp - PL_stack_base) |
2285 | *(PL_stack_base + markix) = &PL_sv_undef; |
748a9306 |
2286 | else |
3280af22 |
2287 | *(PL_stack_base + markix) = *PL_stack_sp; |
2288 | PL_stack_sp = PL_stack_base + markix; |
748a9306 |
2289 | } |
a0d0e21e |
2290 | } |
2291 | LEAVE; |
2292 | return NORMAL; |
2293 | } |
2294 | else { |
2295 | dMARK; |
2296 | register I32 items = SP - MARK; |
a0d0e21e |
2297 | AV* padlist = CvPADLIST(cv); |
2298 | SV** svp = AvARRAY(padlist); |
533c011a |
2299 | push_return(PL_op->op_next); |
a0d0e21e |
2300 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2301 | PUSHSUB(cx); |
2302 | CvDEPTH(cv)++; |
6b35e009 |
2303 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2304 | * that eval'' ops within this sub know the correct lexical space. |
2305 | * Owing the speed considerations, we choose to search for the cv |
2306 | * in doeval() instead. |
2307 | */ |
a0d0e21e |
2308 | if (CvDEPTH(cv) < 2) |
2309 | (void)SvREFCNT_inc(cv); |
2310 | else { /* save temporaries on recursion? */ |
93965878 |
2311 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e |
2312 | AV *av; |
2313 | AV *newpad = newAV(); |
4aa0a1f7 |
2314 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 |
2315 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e |
2316 | svp = AvARRAY(svp[0]); |
748a9306 |
2317 | for ( ;ix > 0; ix--) { |
3280af22 |
2318 | if (svp[ix] != &PL_sv_undef) { |
748a9306 |
2319 | char *name = SvPVX(svp[ix]); |
5f05dabc |
2320 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2321 | || *name == '&') /* anonymous code? */ |
2322 | { |
2323 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
2324 | } |
2325 | else { /* our own lexical */ |
2326 | if (*name == '@') |
2327 | av_store(newpad, ix, sv = (SV*)newAV()); |
2328 | else if (*name == '%') |
2329 | av_store(newpad, ix, sv = (SV*)newHV()); |
2330 | else |
2331 | av_store(newpad, ix, sv = NEWSV(0,0)); |
2332 | SvPADMY_on(sv); |
2333 | } |
a0d0e21e |
2334 | } |
2335 | else { |
748a9306 |
2336 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
2337 | SvPADTMP_on(sv); |
2338 | } |
2339 | } |
2340 | av = newAV(); /* will be @_ */ |
2341 | av_extend(av, 0); |
2342 | av_store(newpad, 0, (SV*)av); |
2343 | AvFLAGS(av) = AVf_REIFY; |
2344 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
93965878 |
2345 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e |
2346 | svp = AvARRAY(padlist); |
2347 | } |
2348 | } |
6d4ff0d2 |
2349 | #ifdef USE_THREADS |
2350 | if (!hasargs) { |
533c011a |
2351 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 |
2352 | |
93965878 |
2353 | items = AvFILLp(av) + 1; |
6d4ff0d2 |
2354 | if (items) { |
2355 | /* Mark is at the end of the stack. */ |
924508f0 |
2356 | EXTEND(SP, items); |
2357 | Copy(AvARRAY(av), SP + 1, items, SV*); |
2358 | SP += items; |
6d4ff0d2 |
2359 | PUTBACK ; |
2360 | } |
2361 | } |
2362 | #endif /* USE_THREADS */ |
3280af22 |
2363 | SAVESPTR(PL_curpad); |
2364 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 |
2365 | #ifndef USE_THREADS |
2366 | if (hasargs) |
2367 | #endif /* USE_THREADS */ |
2368 | { |
2369 | AV* av; |
a0d0e21e |
2370 | SV** ary; |
2371 | |
77a005ab |
2372 | #if 0 |
8b73bbec |
2373 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2374 | "%p entersub preparing @_\n", thr)); |
77a005ab |
2375 | #endif |
3280af22 |
2376 | av = (AV*)PL_curpad[0]; |
a0d0e21e |
2377 | if (AvREAL(av)) { |
2378 | av_clear(av); |
2379 | AvREAL_off(av); |
2380 | } |
6d4ff0d2 |
2381 | #ifndef USE_THREADS |
3280af22 |
2382 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2383 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); |
6d4ff0d2 |
2384 | #endif /* USE_THREADS */ |
2385 | cx->blk_sub.argarray = av; |
a0d0e21e |
2386 | ++MARK; |
2387 | |
2388 | if (items > AvMAX(av) + 1) { |
2389 | ary = AvALLOC(av); |
2390 | if (AvARRAY(av) != ary) { |
2391 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
2392 | SvPVX(av) = (char*)ary; |
2393 | } |
2394 | if (items > AvMAX(av) + 1) { |
2395 | AvMAX(av) = items - 1; |
2396 | Renew(ary,items,SV*); |
2397 | AvALLOC(av) = ary; |
2398 | SvPVX(av) = (char*)ary; |
2399 | } |
2400 | } |
2401 | Copy(MARK,AvARRAY(av),items,SV*); |
93965878 |
2402 | AvFILLp(av) = items - 1; |
a0d0e21e |
2403 | |
2404 | while (items--) { |
2405 | if (*MARK) |
2406 | SvTEMP_off(*MARK); |
2407 | MARK++; |
2408 | } |
2409 | } |
4a925ff6 |
2410 | /* warning must come *after* we fully set up the context |
2411 | * stuff so that __WARN__ handlers can safely dounwind() |
2412 | * if they want to |
2413 | */ |
2414 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) |
2415 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) |
2416 | sub_crush_depth(cv); |
77a005ab |
2417 | #if 0 |
8b73bbec |
2418 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 |
2419 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab |
2420 | #endif |
a0d0e21e |
2421 | RETURNOP(CvSTART(cv)); |
2422 | } |
2423 | } |
2424 | |
44a8e56a |
2425 | void |
8ac85365 |
2426 | sub_crush_depth(CV *cv) |
44a8e56a |
2427 | { |
2428 | if (CvANON(cv)) |
599cee73 |
2429 | warner(WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a |
2430 | else { |
2431 | SV* tmpstr = sv_newmortal(); |
2432 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
599cee73 |
2433 | warner(WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
2434 | SvPVX(tmpstr)); |
44a8e56a |
2435 | } |
2436 | } |
2437 | |
a0d0e21e |
2438 | PP(pp_aelem) |
2439 | { |
4e35701f |
2440 | djSP; |
a0d0e21e |
2441 | SV** svp; |
748a9306 |
2442 | I32 elem = POPi; |
68dc0745 |
2443 | AV* av = (AV*)POPs; |
533c011a |
2444 | U32 lval = PL_op->op_flags & OPf_MOD; |
2445 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); |
be6c24e0 |
2446 | SV *sv; |
a0d0e21e |
2447 | |
748a9306 |
2448 | if (elem > 0) |
3280af22 |
2449 | elem -= PL_curcop->cop_arybase; |
a0d0e21e |
2450 | if (SvTYPE(av) != SVt_PVAV) |
2451 | RETPUSHUNDEF; |
68dc0745 |
2452 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e |
2453 | if (lval) { |
3280af22 |
2454 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 |
2455 | SV* lv; |
2456 | if (!defer) |
22c35a8c |
2457 | DIE(PL_no_aelem, elem); |
68dc0745 |
2458 | lv = sv_newmortal(); |
2459 | sv_upgrade(lv, SVt_PVLV); |
2460 | LvTYPE(lv) = 'y'; |
2461 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
2462 | LvTARG(lv) = SvREFCNT_inc(av); |
2463 | LvTARGOFF(lv) = elem; |
2464 | LvTARGLEN(lv) = 1; |
2465 | PUSHs(lv); |
2466 | RETURN; |
2467 | } |
533c011a |
2468 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 |
2469 | save_aelem(av, elem, svp); |
533c011a |
2470 | else if (PL_op->op_private & OPpDEREF) |
2471 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); |
a0d0e21e |
2472 | } |
3280af22 |
2473 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 |
2474 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2475 | sv = sv_mortalcopy(sv); |
2476 | PUSHs(sv); |
a0d0e21e |
2477 | RETURN; |
2478 | } |
2479 | |
02a9e968 |
2480 | void |
8ac85365 |
2481 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 |
2482 | { |
2483 | if (SvGMAGICAL(sv)) |
2484 | mg_get(sv); |
2485 | if (!SvOK(sv)) { |
2486 | if (SvREADONLY(sv)) |
22c35a8c |
2487 | croak(PL_no_modify); |
5f05dabc |
2488 | if (SvTYPE(sv) < SVt_RV) |
2489 | sv_upgrade(sv, SVt_RV); |
2490 | else if (SvTYPE(sv) >= SVt_PV) { |
2491 | (void)SvOOK_off(sv); |
2492 | Safefree(SvPVX(sv)); |
2493 | SvLEN(sv) = SvCUR(sv) = 0; |
2494 | } |
68dc0745 |
2495 | switch (to_what) { |
5f05dabc |
2496 | case OPpDEREF_SV: |
8c52afec |
2497 | SvRV(sv) = NEWSV(355,0); |
5f05dabc |
2498 | break; |
2499 | case OPpDEREF_AV: |
2500 | SvRV(sv) = (SV*)newAV(); |
2501 | break; |
2502 | case OPpDEREF_HV: |
2503 | SvRV(sv) = (SV*)newHV(); |
2504 | break; |
2505 | } |
02a9e968 |
2506 | SvROK_on(sv); |
2507 | SvSETMAGIC(sv); |
2508 | } |
2509 | } |
2510 | |
a0d0e21e |
2511 | PP(pp_method) |
2512 | { |
4e35701f |
2513 | djSP; |
a0d0e21e |
2514 | SV* sv; |
2515 | SV* ob; |
2516 | GV* gv; |
56304f61 |
2517 | HV* stash; |
2518 | char* name; |
ac91690f |
2519 | char* packname; |
2520 | STRLEN packlen; |
a0d0e21e |
2521 | |
fb73857a |
2522 | if (SvROK(TOPs)) { |
2523 | sv = SvRV(TOPs); |
2524 | if (SvTYPE(sv) == SVt_PVCV) { |
2525 | SETs(sv); |
2526 | RETURN; |
2527 | } |
2528 | } |
2529 | |
3280af22 |
2530 | name = SvPV(TOPs, PL_na); |
2531 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e |
2532 | |
16d20bd9 |
2533 | if (SvGMAGICAL(sv)) |
2534 | mg_get(sv); |
a0d0e21e |
2535 | if (SvROK(sv)) |
16d20bd9 |
2536 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2537 | else { |
2538 | GV* iogv; |
a0d0e21e |
2539 | |
56304f61 |
2540 | packname = Nullch; |
a0d0e21e |
2541 | if (!SvOK(sv) || |
56304f61 |
2542 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2543 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2544 | !(ob=(SV*)GvIO(iogv))) |
2545 | { |
834a4ddd |
2546 | if (!packname || |
2547 | ((*(U8*)packname >= 0xc0 && IN_UTF8) |
b86a2fa7 |
2548 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd |
2549 | : !isIDFIRST(*packname) |
2550 | )) |
2551 | { |
72b5445b |
2552 | DIE("Can't call method \"%s\" %s", name, |
2553 | SvOK(sv)? "without a package or object reference" |
2554 | : "on an undefined value"); |
834a4ddd |
2555 | } |
56304f61 |
2556 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f |
2557 | goto fetch; |
a0d0e21e |
2558 | } |
3280af22 |
2559 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2560 | } |
2561 | |
ac91690f |
2562 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e |
2563 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e |
2564 | |
56304f61 |
2565 | stash = SvSTASH(ob); |
a0d0e21e |
2566 | |
ac91690f |
2567 | fetch: |
ac91690f |
2568 | gv = gv_fetchmethod(stash, name); |
56304f61 |
2569 | if (!gv) { |
2570 | char* leaf = name; |
2571 | char* sep = Nullch; |
2572 | char* p; |
2573 | |
2574 | for (p = name; *p; p++) { |
2575 | if (*p == '\'') |
2576 | sep = p, leaf = p + 1; |
2577 | else if (*p == ':' && *(p + 1) == ':') |
2578 | sep = p, leaf = p + 2; |
2579 | } |
2580 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { |
3280af22 |
2581 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 |
2582 | packlen = strlen(packname); |
2583 | } |
2584 | else { |
2585 | packname = name; |
2586 | packlen = sep - name; |
2587 | } |
2588 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", |
2589 | leaf, (int)packlen, packname); |
2590 | } |
8ebc5c01 |
2591 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2592 | RETURN; |
2593 | } |
22239a37 |
2594 | |