Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, | |
12 | * shaking the air. | |
13 | * | |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! | |
15 | * Fire, Foes! Awake! | |
16 | */ | |
17 | ||
18 | #include "EXTERN.h" | |
19 | #include "perl.h" | |
20 | ||
8ac85365 NIS |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> | |
23 | #endif | |
9d116dd7 JH |
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 LW |
31 | #define HOP(pos,off) (IN_UTF8 ? utf8_hop(pos, off) : (pos + off)) |
32 | ||
a0d0e21e LW |
33 | /* Hot code. */ |
34 | ||
11343788 MB |
35 | #ifdef USE_THREADS |
36 | static void | |
8ac85365 | 37 | unset_cvowner(void *cvarg) |
11343788 MB |
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 MB |
48 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
49 | CvDEPTH(cv));); | |
11343788 MB |
50 | assert(thr == CvOWNER(cv)); |
51 | CvOWNER(cv) = 0; | |
11343788 MB |
52 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
53 | SvREFCNT_dec(cv); | |
54 | } | |
11343788 MB |
55 | #endif /* USE_THREADS */ |
56 | ||
a0d0e21e LW |
57 | PP(pp_const) |
58 | { | |
4e35701f | 59 | djSP; |
a0d0e21e LW |
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 LW |
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 LW |
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 LW |
92 | return NORMAL; |
93 | } | |
94 | ||
95 | PP(pp_stringify) | |
96 | { | |
4e35701f | 97 | djSP; dTARGET; |
a0d0e21e LW |
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 LW |
109 | XPUSHs((SV*)cGVOP->op_gv); |
110 | RETURN; | |
111 | } | |
112 | ||
113 | PP(pp_and) | |
114 | { | |
4e35701f | 115 | djSP; |
a0d0e21e LW |
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 LW |
127 | MAGIC *mg; |
128 | ||
533c011a | 129 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
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 LW |
136 | SETs(right); |
137 | RETURN; | |
138 | } | |
139 | ||
140 | PP(pp_cond_expr) | |
141 | { | |
4e35701f | 142 | djSP; |
a0d0e21e LW |
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 LW |
156 | LEAVE_SCOPE(oldsave); |
157 | return NORMAL; | |
158 | } | |
159 | ||
a0d0e21e LW |
160 | PP(pp_concat) |
161 | { | |
4e35701f | 162 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
163 | { |
164 | dPOPTOPssrl; | |
a0d0e21e LW |
165 | STRLEN len; |
166 | char *s; | |
167 | if (TARG != left) { | |
168 | s = SvPV(left,len); | |
169 | sv_setpvn(TARG,s,len); | |
170 | } | |
c07a80fd PP |
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 PP |
178 | if (SvOK(TARG)) |
179 | sv_catpvn(TARG,s,len); | |
180 | else | |
181 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
182 | SETTARG; |
183 | RETURN; | |
748a9306 | 184 | } |
a0d0e21e LW |
185 | } |
186 | ||
187 | PP(pp_padsv) | |
188 | { | |
4e35701f | 189 | djSP; dTARGET; |
a0d0e21e | 190 | XPUSHs(TARG); |
533c011a NIS |
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 NIS |
197 | SPAGAIN; |
198 | } | |
4633a7c4 | 199 | } |
a0d0e21e LW |
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 IZ |
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 LW |
222 | return do_readline(); |
223 | } | |
224 | ||
225 | PP(pp_eq) | |
226 | { | |
4e35701f | 227 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
228 | { |
229 | dPOPnv; | |
54310121 | 230 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
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 PP |
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 LW |
245 | } |
246 | else | |
247 | sv_inc(TOPs); | |
a0d0e21e LW |
248 | SvSETMAGIC(TOPs); |
249 | return NORMAL; | |
250 | } | |
251 | ||
252 | PP(pp_or) | |
253 | { | |
4e35701f | 254 | djSP; |
a0d0e21e LW |
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 LW |
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 NIS |
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 GS |
281 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
282 | sv = sv_mortalcopy(sv); | |
283 | PUSHs(sv); | |
a0d0e21e LW |
284 | RETURN; |
285 | } | |
286 | ||
287 | PP(pp_join) | |
288 | { | |
4e35701f | 289 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
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 PP |
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 PP |
309 | XPUSHs(sv); |
310 | #else | |
6b88bc9c | 311 | XPUSHs((SV*)PL_op); |
44a8e56a | 312 | #endif |
a0d0e21e LW |
313 | RETURN; |
314 | } | |
315 | ||
316 | /* Oversized hot code. */ | |
317 | ||
318 | PP(pp_print) | |
319 | { | |
4e35701f | 320 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
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 LW |
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 NIS |
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 PP |
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 PP |
343 | ENTER; |
344 | perl_call_method("PRINT", G_SCALAR); | |
345 | LEAVE; | |
346 | SPAGAIN; | |
68dc0745 PP |
347 | MARK = ORIGMARK + 1; |
348 | *MARK = *SP; | |
349 | SP = MARK; | |
236988e4 PP |
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 LW |
357 | } |
358 | ||
359 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
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 PM |
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 LW |
374 | goto just_say_no; |
375 | } | |
376 | else { | |
377 | MARK++; | |
3280af22 | 378 | if (PL_ofslen) { |
a0d0e21e LW |
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 LW |
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 NIS |
401 | if (PL_orslen) |
402 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
403 | goto just_say_no; |
404 | ||
405 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 406 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
407 | goto just_say_no; |
408 | } | |
409 | } | |
410 | SP = ORIGMARK; | |
3280af22 | 411 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
412 | RETURN; |
413 | ||
414 | just_say_no: | |
415 | SP = ORIGMARK; | |
3280af22 | 416 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
417 | RETURN; |
418 | } | |
419 | ||
420 | PP(pp_rv2av) | |
421 | { | |
f5284f61 | 422 | djSP; dTOPss; |
a0d0e21e LW |
423 | AV *av; |
424 | ||
425 | if (SvROK(sv)) { | |
426 | wasref: | |
f5284f61 IZ |
427 | tryAMAGICunDEREF(to_av); |
428 | ||
a0d0e21e LW |
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 LW |
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 LW |
442 | RETURN; |
443 | } | |
444 | } | |
445 | else { | |
67955e0c PP |
446 | GV *gv; |
447 | ||
a0d0e21e | 448 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
449 | char *sym; |
450 | ||
a0d0e21e LW |
451 | if (SvGMAGICAL(sv)) { |
452 | mg_get(sv); | |
453 | if (SvROK(sv)) | |
454 | goto wasref; | |
455 | } | |
456 | if (!SvOK(sv)) { | |
533c011a NIS |
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 IZ |
462 | if (GIMME == G_ARRAY) { |
463 | POPs; | |
4633a7c4 | 464 | RETURN; |
f5284f61 IZ |
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 PP |
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 LW |
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 NIS |
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 NIS |
494 | } |
495 | } | |
496 | else { | |
497 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
498 | } | |
a0d0e21e LW |
499 | SP += maxarg; |
500 | } | |
501 | else { | |
502 | dTARGET; | |
503 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 504 | SETi(maxarg); |
a0d0e21e LW |
505 | } |
506 | RETURN; | |
507 | } | |
508 | ||
509 | PP(pp_rv2hv) | |
510 | { | |
4e35701f | 511 | djSP; dTOPss; |
a0d0e21e LW |
512 | HV *hv; |
513 | ||
514 | if (SvROK(sv)) { | |
515 | wasref: | |
f5284f61 IZ |
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 LW |
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 LW |
530 | SETs((SV*)hv); |
531 | RETURN; | |
532 | } | |
533 | } | |
534 | else { | |
67955e0c PP |
535 | GV *gv; |
536 | ||
a0d0e21e | 537 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
538 | char *sym; |
539 | ||
a0d0e21e LW |
540 | if (SvGMAGICAL(sv)) { |
541 | mg_get(sv); | |
542 | if (SvROK(sv)) | |
543 | goto wasref; | |
544 | } | |
545 | if (!SvOK(sv)) { | |
533c011a NIS |
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 LW |
551 | if (GIMME == G_ARRAY) { |
552 | SP--; | |
553 | RETURN; | |
554 | } | |
a0d0e21e LW |
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 PP |
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 LW |
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 LW |
576 | return do_kv(ARGS); |
577 | } | |
578 | else { | |
579 | dTARGET; | |
4b154ab5 GA |
580 | if (SvTYPE(hv) == SVt_PVAV) |
581 | hv = avhv_keys((AV*)hv); | |
46fc3d4c PP |
582 | if (HvFILL(hv)) |
583 | sv_setpvf(TARG, "%ld/%ld", | |
584 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
585 | else |
586 | sv_setiv(TARG, 0); | |
c750a3ec | 587 | |
a0d0e21e LW |
588 | SETTARG; |
589 | RETURN; | |
590 | } | |
591 | } | |
592 | ||
593 | PP(pp_aassign) | |
594 | { | |
4e35701f | 595 | djSP; |
3280af22 NIS |
596 | SV **lastlelem = PL_stack_sp; |
597 | SV **lastrelem = PL_stack_base + POPMARK; | |
598 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
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 LW |
608 | HV *hash; |
609 | I32 i; | |
610 | int magic; | |
611 | ||
3280af22 | 612 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
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 LW |
620 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
621 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
622 | if (sv = *relem) { |
623 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 624 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 625 | } |
a0d0e21e LW |
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 LW |
635 | sv = *lelem++; |
636 | switch (SvTYPE(sv)) { | |
637 | case SVt_PVAV: | |
638 | ary = (AV*)sv; | |
748a9306 | 639 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
640 | |
641 | av_clear(ary); | |
7e42bd57 | 642 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
643 | i = 0; |
644 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 645 | SV **didstore; |
a0d0e21e LW |
646 | sv = NEWSV(28,0); |
647 | assert(*relem); | |
648 | sv_setsv(sv,*relem); | |
649 | *(relem++) = sv; | |
5117ca91 GS |
650 | didstore = av_store(ary,i++,sv); |
651 | if (magic) { | |
fb73857a PP |
652 | if (SvSMAGICAL(sv)) |
653 | mg_set(sv); | |
5117ca91 GS |
654 | if (!didstore) |
655 | SvREFCNT_dec(sv); | |
656 | } | |
bbce6d69 | 657 | TAINT_NOT; |
a0d0e21e LW |
658 | } |
659 | break; | |
660 | case SVt_PVHV: { | |
a0d0e21e LW |
661 | SV *tmpstr; |
662 | ||
663 | hash = (HV*)sv; | |
748a9306 | 664 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
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 LW |
673 | tmpstr = NEWSV(29,0); |
674 | if (*relem) | |
675 | sv_setsv(tmpstr,*relem); /* value */ | |
676 | *(relem++) = tmpstr; | |
5117ca91 GS |
677 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
678 | if (magic) { | |
fb73857a PP |
679 | if (SvSMAGICAL(tmpstr)) |
680 | mg_set(tmpstr); | |
5117ca91 GS |
681 | if (!didstore) |
682 | SvREFCNT_dec(tmpstr); | |
683 | } | |
bbce6d69 | 684 | TAINT_NOT; |
8e07c86e | 685 | } |
6a0deba8 GS |
686 | if (relem == lastrelem) { |
687 | if (*relem) { | |
688 | HE *didstore; | |
599cee73 | 689 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 GS |
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 GS |
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 LW |
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 LW |
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 LW |
730 | SvSETMAGIC(sv); |
731 | break; | |
732 | } | |
733 | } | |
3280af22 NIS |
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 AD |
738 | #else |
739 | # ifdef HAS_SETREUID | |
3280af22 | 740 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
741 | # else |
742 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
743 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
744 | (void)setruid(PL_uid); | |
745 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 746 | } |
56febc5e AD |
747 | # endif /* HAS_SETRUID */ |
748 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
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 NIS |
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 AD |
759 | # endif /* HAS_SETREUID */ |
760 | #endif /* HAS_SETRESUID */ | |
3280af22 NIS |
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 AD |
767 | #else |
768 | # ifdef HAS_SETREGID | |
3280af22 | 769 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
770 | # else |
771 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
772 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
773 | (void)setrgid(PL_gid); | |
774 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 775 | } |
56febc5e AD |
776 | # endif /* HAS_SETRGID */ |
777 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
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 NIS |
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 AD |
788 | # endif /* HAS_SETREGID */ |
789 | #endif /* HAS_SETRESGID */ | |
3280af22 NIS |
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 PP |
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 LW |
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 LW |
815 | } |
816 | ||
8782bef2 GB |
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 GB |
823 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
824 | RETURNX(PUSHs(rv)); | |
825 | } | |
826 | ||
a0d0e21e LW |
827 | PP(pp_match) |
828 | { | |
4e35701f | 829 | djSP; dTARG; |
a0d0e21e LW |
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 LW |
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 LW |
847 | TARG = POPs; |
848 | else { | |
54b9620d | 849 | TARG = DEFSV; |
a0d0e21e LW |
850 | EXTEND(SP,1); |
851 | } | |
c277df42 | 852 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
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 LW |
863 | if (gimme == G_ARRAY) |
864 | RETURN; | |
865 | RETPUSHNO; | |
866 | } | |
867 | ||
3280af22 NIS |
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 GS |
874 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
875 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
876 | && SvVALID(rx->check_substr)) | |
c277df42 | 877 | ? TARG : Nullsv); |
a0d0e21e LW |
878 | truebase = t = s; |
879 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
d9f97599 | 880 | rx->startp[0] = 0; |
a0d0e21e LW |
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 LW |
888 | } |
889 | } | |
9d080a66 GS |
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 NIS |
894 | SAVEINT(PL_multiline); |
895 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
896 | } |
897 | ||
898 | play_it_again: | |
d9f97599 GS |
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 GS |
906 | if (rx->check_substr) { |
907 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
c277df42 IZ |
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 LW |
918 | |
919 | if ((rx->reganch & ROPT_CHECK_ALL) | |
3280af22 | 920 | && !PL_sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e LW |
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 LW |
932 | } |
933 | else | |
934 | s = t; | |
935 | } | |
c277df42 IZ |
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 GS |
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 LW |
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 LW |
959 | goto gotcha; |
960 | } | |
961 | else | |
962 | goto ret_no; | |
963 | /*NOTREACHED*/ | |
964 | ||
965 | gotcha: | |
72311751 GS |
966 | if (rxtainted) |
967 | RX_MATCH_TAINTED_on(rx); | |
968 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
969 | if (gimme == G_ARRAY) { |
970 | I32 iters, i, len; | |
971 | ||
d9f97599 | 972 | iters = rx->nparens; |
a0d0e21e LW |
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 LW |
980 | for (i = !i; i <= iters; i++) { |
981 | PUSHs(sv_newmortal()); | |
982 | /*SUPPRESS 560*/ | |
d9f97599 GS |
983 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
984 | len = rx->endp[i] - s; | |
a0d0e21e LW |
985 | sv_setpvn(*SP, s, len); |
986 | } | |
987 | } | |
988 | if (global) { | |
d9f97599 GS |
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 LW |
994 | goto play_it_again; |
995 | } | |
f7e33566 | 996 | else if (!iters) |
bde848c5 | 997 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 998 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
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 GS |
1010 | if (rx->startp[0]) { |
1011 | mg->mg_len = rx->endp[0] - rx->subbeg; | |
1012 | if (rx->startp[0] == rx->endp[0]) | |
748a9306 LW |
1013 | mg->mg_flags |= MGf_MINMATCH; |
1014 | else | |
1015 | mg->mg_flags &= ~MGf_MINMATCH; | |
1016 | } | |
a0d0e21e | 1017 | } |
4633a7c4 | 1018 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1019 | RETPUSHYES; |
1020 | } | |
1021 | ||
c277df42 | 1022 | yup: /* Confirmed by check_substr */ |
72311751 GS |
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 GS |
1030 | Safefree(rx->subbase); |
1031 | rx->subbase = Nullch; | |
a0d0e21e | 1032 | if (global) { |
d9f97599 GS |
1033 | rx->subbeg = truebase; |
1034 | rx->subend = strend; | |
1035 | rx->startp[0] = s; | |
1036 | rx->endp[0] = s + SvCUR(rx->check_substr); | |
a0d0e21e LW |
1037 | goto gotcha; |
1038 | } | |
3280af22 | 1039 | if (PL_sawampersand) { |
a0d0e21e LW |
1040 | char *tmps; |
1041 | ||
d9f97599 GS |
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 LW |
1049 | RETPUSHYES; |
1050 | ||
1051 | nope: | |
d9f97599 GS |
1052 | if (rx->check_substr) |
1053 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
1054 | |
1055 | ret_no: | |
c90c0ff4 | 1056 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
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 LW |
1061 | } |
1062 | } | |
4633a7c4 | 1063 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1064 | if (gimme == G_ARRAY) |
1065 | RETURN; | |
1066 | RETPUSHNO; | |
1067 | } | |
1068 | ||
1069 | OP * | |
8ac85365 | 1070 | do_readline(void) |
a0d0e21e LW |
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 PP |
1085 | PUTBACK; |
1086 | ENTER; | |
54310121 | 1087 | perl_call_method("READLINE", gimme); |
e79b0511 PP |
1088 | LEAVE; |
1089 | SPAGAIN; | |
54310121 PP |
1090 | if (gimme == G_SCALAR) |
1091 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 PP |
1092 | RETURN; |
1093 | } | |
a0d0e21e LW |
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 NIS |
1104 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1105 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1106 | fp = IoIFP(io); |
1107 | goto have_fp; | |
a0d0e21e LW |
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 LW |
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 LW |
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$l_fnb | |
1144 | but that's unsupported, so I don't want to do it now and | |
1145 | have it bite someone in the future. */ | |
6ad3d225 | 1146 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1147 | cp = SvPV(tmpglob,i); |
1148 | for (; i; i--) { | |
1149 | if (cp[i] == ';') hasver = 1; | |
1150 | if (cp[i] == '.') { | |
1151 | if (sts) hasver = 1; | |
1152 | else sts = 1; | |
1153 | } | |
1154 | if (cp[i] == '/') { | |
1155 | hasdir = isunix = 1; | |
1156 | break; | |
748a9306 | 1157 | } |
a0d0e21e LW |
1158 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1159 | hasdir = 1; | |
1160 | break; | |
1161 | } | |
1162 | } | |
760ac839 | 1163 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1164 | Stat_t st; |
c6ed36e1 | 1165 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1166 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1167 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1168 | if (ok) wilddsc.dsc$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 LW |
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 LW |
1185 | } |
1186 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1187 | if (ok && sts != RMS$_NMF && |
1188 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1189 | if (!ok) { |
c07a80fd PP |
1190 | if (!(sts & 1)) { |
1191 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1192 | } | |
760ac839 | 1193 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1194 | fp = NULL; |
1195 | } | |
1196 | else { | |
760ac839 | 1197 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1198 | IoTYPE(io) = '<'; |
1199 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1200 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1201 | } |
1202 | } | |
1203 | } | |
1204 | #else /* !VMS */ | |
1205 | #ifdef DOSISH | |
67955e0c PP |
1206 | #ifdef OS2 |
1207 | sv_setpv(tmpcmd, "for a in "); | |
1208 | sv_catsv(tmpcmd, tmpglob); | |
1209 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1210 | #else | |
39e571d4 ML |
1211 | #ifdef DJGPP |
1212 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1213 | sv_catsv(tmpcmd, tmpglob); | |
1214 | #else | |
a0d0e21e LW |
1215 | sv_setpv(tmpcmd, "perlglob "); |
1216 | sv_catsv(tmpcmd, tmpglob); | |
1217 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1218 | #endif /* !DJGPP */ |
67955e0c PP |
1219 | #endif /* !OS2 */ |
1220 | #else /* !DOSISH */ | |
1221 | #if defined(CSH) | |
3280af22 | 1222 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1223 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1224 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1225 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
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 LW |
1238 | fp = IoIFP(io); |
1239 | #endif /* !VMS */ | |
1240 | LEAVE; | |
1241 | } | |
1242 | } | |
1243 | else if (type == OP_GLOB) | |
1244 | SP--; | |
1245 | } | |
1246 | if (!fp) { | |
599cee73 PM |
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 LW |
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 PP |
1259 | if (SvROK(sv)) |
1260 | sv_unref(sv); | |
a0d0e21e LW |
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 PP |
1270 | else { |
1271 | sv = sv_2mortal(NEWSV(57, 80)); | |
1272 | offset = 0; | |
1273 | } | |
a0d0e21e LW |
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 LW |
1279 | if (fp) |
1280 | continue; | |
3280af22 | 1281 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1282 | IoFLAGS(io) |= IOf_START; |
1283 | } | |
1284 | else if (type == OP_GLOB) { | |
4eb79ab5 GS |
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 LW |
1293 | (void)SvOK_off(TARG); |
1294 | PUSHTARG; | |
1295 | } | |
1296 | RETURN; | |
1297 | } | |
bbce6d69 PP |
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 LW |
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 PP |
1312 | *tmps = '\0'; |
1313 | SvCUR(sv)--; | |
1314 | } | |
1315 | } | |
a0d0e21e LW |
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 LW |
1321 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1322 | continue; | |
1323 | } | |
1324 | } | |
54310121 | 1325 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
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 LW |
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 PP |
1351 | if (gimme == -1) { |
1352 | if (cxstack_ix >= 0) | |
1353 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1354 | else | |
1355 | gimme = G_SCALAR; | |
1356 | } | |
a0d0e21e LW |
1357 | |
1358 | ENTER; | |
1359 | ||
1360 | SAVETMPS; | |
924508f0 | 1361 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
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 NIS |
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 MB |
1377 | if (SvTYPE(hv) == SVt_PVHV) { |
1378 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1379 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1380 | } |
1381 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 SM |
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 PP |
1391 | SV* lv; |
1392 | SV* key2; | |
1393 | if (!defer) | |
22c35a8c | 1394 | DIE(PL_no_helem, SvPV(keysv, PL_na)); |
68dc0745 PP |
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 NIS |
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 GS |
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 LW |
1424 | RETURN; |
1425 | } | |
1426 | ||
1427 | PP(pp_leave) | |
1428 | { | |
4e35701f | 1429 | djSP; |
c09156bb | 1430 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
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 LW |
1439 | } |
1440 | ||
1441 | POPBLOCK(cx,newpm); | |
1442 | ||
533c011a | 1443 | gimme = OP_GIMME(PL_op, -1); |
54310121 PP |
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 PP |
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 CS |
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 CS |
1472 | TAINT_NOT; /* Each item is independent */ |
1473 | } | |
1474 | } | |
a0d0e21e | 1475 | } |
3280af22 | 1476 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1477 | |
1478 | LEAVE; | |
1479 | ||
1480 | RETURN; | |
1481 | } | |
1482 | ||
1483 | PP(pp_iter) | |
1484 | { | |
4e35701f | 1485 | djSP; |
c09156bb | 1486 | register PERL_CONTEXT *cx; |
5f05dabc | 1487 | SV* sv; |
4633a7c4 | 1488 | AV* av; |
a0d0e21e | 1489 | |
924508f0 | 1490 | EXTEND(SP, 1); |
a0d0e21e | 1491 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1492 | if (CxTYPE(cx) != CXt_LOOP) |
a0d0e21e LW |
1493 | DIE("panic: pp_iter"); |
1494 | ||
4633a7c4 | 1495 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1496 | if (SvTYPE(av) != SVt_PVAV) { |
1497 | /* iterate ($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 SM |
1505 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1506 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1507 | { | |
eaa5c2d6 GA |
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 GA |
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 SM |
1533 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1534 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1535 | { | |
eaa5c2d6 GA |
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 GA |
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 NIS |
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 NIS |
1562 | sv = &PL_sv_undef; |
1563 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1564 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc PP |
1565 | if (lv && SvREFCNT(lv) > 1) { |
1566 | SvREFCNT_dec(lv); | |
1567 | lv = Nullsv; | |
1568 | } | |
5f05dabc PP |
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 PP |
1576 | } |
1577 | LvTARG(lv) = SvREFCNT_inc(av); | |
1578 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1579 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc PP |
1580 | sv = (SV*)lv; |
1581 | } | |
a0d0e21e | 1582 | |
7a4c00b4 | 1583 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1584 | RETPUSHYES; |
1585 | } | |
1586 | ||
1587 | PP(pp_subst) | |
1588 | { | |
4e35701f | 1589 | djSP; dTARG; |
a0d0e21e LW |
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 LW |
1604 | char *orig; |
1605 | I32 safebase; | |
d9f97599 | 1606 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1607 | STRLEN len; |
1608 | int force_on_match = 0; | |
3280af22 | 1609 | I32 oldsave = PL_savestack_ix; |
c277df42 IZ |
1610 | I32 update_minmatch = 1; |
1611 | SV *screamer; | |
a0d0e21e | 1612 | |
5cd24f17 PP |
1613 | /* known replacement string? */ |
1614 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1615 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1616 | TARG = POPs; |
1617 | else { | |
54b9620d | 1618 | TARG = DEFSV; |
a0d0e21e | 1619 | EXTEND(SP,1); |
8ec5e241 | 1620 | } |
68dc0745 PP |
1621 | if (SvREADONLY(TARG) |
1622 | || (SvTYPE(TARG) > SVt_PVLV | |
1623 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
22c35a8c | 1624 | croak(PL_no_modify); |
8ec5e241 NIS |
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 NIS |
1631 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1632 | if (PL_tainted) | |
b3eb6a9b | 1633 | rxtainted |= 2; |
9212bbba | 1634 | TAINT_NOT; |
a0d0e21e LW |
1635 | |
1636 | force_it: | |
1637 | if (!pm || !s) | |
1638 | DIE("panic: do_subst"); | |
1639 | ||
1640 | strend = s + len; | |
2beec16e IZ |
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 NIS |
1645 | if (!rx->prelen && PL_curpm) { |
1646 | pm = PL_curpm; | |
d9f97599 | 1647 | rx = pm->op_pmregexp; |
a0d0e21e | 1648 | } |
d9f97599 GS |
1649 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1650 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1651 | && SvVALID(rx->check_substr)) | |
c277df42 | 1652 | ? TARG : Nullsv); |
9d080a66 GS |
1653 | safebase = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
1654 | ? REXEC_COPY_STR : 0; | |
a0d0e21e | 1655 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1656 | SAVEINT(PL_multiline); |
1657 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1658 | } |
1659 | orig = m = s; | |
d9f97599 GS |
1660 | if (rx->check_substr) { |
1661 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
c277df42 IZ |
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 LW |
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 GS |
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 LW |
1680 | } |
1681 | else | |
1682 | s = m; | |
1683 | } | |
c277df42 IZ |
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 GS |
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 LW |
1699 | } |
1700 | } | |
71be2cbc PP |
1701 | |
1702 | /* only replace once? */ | |
a0d0e21e | 1703 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc PP |
1704 | |
1705 | /* known replacement string? */ | |
5cd24f17 | 1706 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc PP |
1707 | |
1708 | /* can do inplace substitution? */ | |
d9f97599 GS |
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 PP |
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 PP |
1724 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1725 | if (once) { | |
48c036b1 | 1726 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 GS |
1727 | if (rx->subbase) { |
1728 | m = orig + (rx->startp[0] - rx->subbase); | |
1729 | d = orig + (rx->endp[0] - rx->subbase); | |
c277df42 | 1730 | } else { |
d9f97599 GS |
1731 | m = rx->startp[0]; |
1732 | d = rx->endp[0]; | |
c277df42 | 1733 | } |
71be2cbc PP |
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 PP |
1740 | i = strend - d; |
1741 | if (i > 0) { | |
1742 | Move(d, m, i, char); | |
1743 | m += i; | |
a0d0e21e | 1744 | } |
71be2cbc PP |
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 PP |
1770 | } |
1771 | else { | |
71be2cbc PP |
1772 | do { |
1773 | if (iters++ > maxiters) | |
1774 | DIE("Substitution loop"); | |
d9f97599 GS |
1775 | rxtainted |= RX_MATCH_TAINTED(rx); |
1776 | m = rx->startp[0]; | |
71be2cbc PP |
1777 | /*SUPPRESS 560*/ |
1778 | if (i = m - s) { | |
1779 | if (s != d) | |
1780 | Move(s, d, i, char); | |
1781 | d += i; | |
a0d0e21e | 1782 | } |
71be2cbc PP |
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 PP |
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 NIS |
1801 | if (SvSMAGICAL(TARG)) { |
1802 | PUTBACK; | |
1803 | mg_set(TARG); | |
1804 | SPAGAIN; | |
1805 | } | |
9212bbba | 1806 | SvTAINT(TARG); |
71be2cbc PP |
1807 | LEAVE_SCOPE(oldsave); |
1808 | RETURN; | |
a0d0e21e | 1809 | } |
71be2cbc | 1810 | |
15e52e56 | 1811 | if (CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e LW |
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 LW |
1824 | PUSHSUBST(cx); |
1825 | RETURNOP(cPMOP->op_pmreplroot); | |
1826 | } | |
1827 | do { | |
1828 | if (iters++ > maxiters) | |
1829 | DIE("Substitution loop"); | |
d9f97599 GS |
1830 | rxtainted |= RX_MATCH_TAINTED(rx); |
1831 | if (rx->subbase && rx->subbase != orig) { | |
a0d0e21e LW |
1832 | m = s; |
1833 | s = orig; | |
d9f97599 | 1834 | orig = rx->subbase; |
a0d0e21e LW |
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 LW |
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 LW |
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 GS |
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 LW |
1865 | RETURN; |
1866 | } | |
5cd24f17 | 1867 | goto ret_no; |
a0d0e21e LW |
1868 | |
1869 | nope: | |
d9f97599 | 1870 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1871 | |
8ec5e241 NIS |
1872 | ret_no: |
1873 | SPAGAIN; | |
3280af22 | 1874 | PUSHs(&PL_sv_no); |
4633a7c4 | 1875 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1876 | RETURN; |
1877 | } | |
1878 | ||
1879 | PP(pp_grepwhile) | |
1880 | { | |
4e35701f | 1881 | djSP; |
a0d0e21e LW |
1882 | |
1883 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1884 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1885 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
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 LW |
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 LW |
1899 | dTARGET; |
1900 | XPUSHi(items); | |
a0d0e21e | 1901 | } |
54310121 PP |
1902 | else if (gimme == G_ARRAY) |
1903 | SP += items; | |
a0d0e21e LW |
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 LW |
1915 | |
1916 | RETURNOP(cLOGOP->op_other); | |
1917 | } | |
1918 | } | |
1919 | ||
1920 | PP(pp_leavesub) | |
1921 | { | |
4e35701f | 1922 | djSP; |
a0d0e21e LW |
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 LW |
1929 | |
1930 | POPBLOCK(cx,newpm); | |
f86702cc PP |
1931 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1932 | ||
a1f49e72 | 1933 | TAINT_NOT; |
a0d0e21e LW |
1934 | if (gimme == G_SCALAR) { |
1935 | MARK = newsp + 1; | |
a29cdaf0 IZ |
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 LW |
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 CS |
1958 | TAINT_NOT; /* Each item is independent */ |
1959 | } | |
f86702cc | 1960 | } |
a0d0e21e | 1961 | } |
f86702cc PP |
1962 | PUTBACK; |
1963 | ||
1964 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
3280af22 | 1965 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
1966 | |
1967 | LEAVE; | |
a0d0e21e LW |
1968 | return pop_return(); |
1969 | } | |
1970 | ||
76e3520e | 1971 | STATIC CV * |
8ac85365 | 1972 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1973 | { |
1974 | dTHR; | |
3280af22 | 1975 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
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 MB |
1993 | } |
1994 | else { | |
491527d0 GS |
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 NIS |
2002 | PL_curcopdb = PL_curcop; |
2003 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2004 | return cv; |
2005 | } | |
2006 | ||
a0d0e21e LW |
2007 | PP(pp_entersub) |
2008 | { | |
4e35701f | 2009 | djSP; dPOPss; |
a0d0e21e LW |
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 LW |
2016 | |
2017 | if (!sv) | |
2018 | DIE("Not a CODE reference"); | |
2019 | switch (SvTYPE(sv)) { | |
2020 | default: | |
2021 | if (!SvROK(sv)) { | |
748a9306 LW |
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 CS |
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 LW |
2040 | break; |
2041 | } | |
f5284f61 IZ |
2042 | { |
2043 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2044 | tryAMAGICunDEREF(to_cv); | |
2045 | } | |
a0d0e21e LW |
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 LW |
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 PP |
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 PP |
2082 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2083 | FALSE))) | |
2084 | { | |
44a8e56a PP |
2085 | cv = GvCV(autogv); |
2086 | goto retry; | |
a0d0e21e | 2087 | } |
44a8e56a | 2088 | /* sorry */ |
22239a37 NIS |
2089 | sub_name = sv_newmortal(); |
2090 | gv_efullname3(sub_name, gv, Nullch); | |
2091 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
a0d0e21e LW |
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 MB |
2097 | if (!cv) |
2098 | DIE("No DBsub routine"); | |
a0d0e21e | 2099 | |
11343788 | 2100 | #ifdef USE_THREADS |
3de9ffa1 MB |
2101 | /* |
2102 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
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 MB |
2109 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2110 | MAGIC *mg; | |
2111 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2112 | if (SP > PL_stack_base + TOPMARK) |
2113 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab MB |
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 MB |
2120 | else { |
2121 | STRLEN len; | |
2122 | char *stashname = SvPV(sv, len); | |
2123 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2124 | } | |
77a005ab MB |
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 MB |
2140 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2141 | save_destructor(unlock_condpair, sv); | |
11343788 | 2142 | } |
77a005ab | 2143 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2144 | } |
3de9ffa1 MB |
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 MB |
2165 | /* Case (2) or (3) */ |
2166 | SV **svp; | |
2167 | ||
11343788 | 2168 | /* |
3de9ffa1 MB |
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 GS |
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 MB |
2182 | "entersub: %p already has clone %p:%s\n", |
2183 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2184 | CvOWNER(cv) = thr; |
2185 | SvREFCNT_inc(cv); | |
2186 | if (CvDEPTH(cv) == 0) | |
2187 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
2188 | } | |
11343788 | 2189 | else { |
3de9ffa1 MB |
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 MB |
2196 | "entersub: %p grabbing %p:%s in stash %s\n", |
2197 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
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 MB |
2205 | "entersub: %p cloning %p:%s\n", |
2206 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
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 MB |
2217 | CvOWNER(clonecv) = thr; |
2218 | cv = clonecv; | |
11343788 | 2219 | SvREFCNT_inc(cv); |
11343788 | 2220 | } |
8b73bbec | 2221 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 MB |
2222 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2223 | CvDEPTH(cv));); | |
2224 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2225 | } |
3de9ffa1 | 2226 | } |
11343788 MB |
2227 | #endif /* USE_THREADS */ |
2228 | ||
a0d0e21e LW |
2229 | if (CvXSUB(cv)) { |
2230 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 2231 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
2232 | dMARK; |
2233 | register I32 items = SP - MARK; | |
67955e0c | 2234 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2235 | while (SP > mark) { |
2236 | SP[1] = SP[0]; | |
2237 | SP--; | |
a0d0e21e | 2238 | } |
3280af22 | 2239 | PL_stack_sp = mark + 1; |
ecfc5424 AD |
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 LW |
2245 | } |
2246 | else { | |
748a9306 LW |
2247 | I32 markix = TOPMARK; |
2248 | ||
a0d0e21e | 2249 | PUTBACK; |
67955e0c PP |
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 MB |
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 PP |
2263 | |
2264 | if (items) { | |
2265 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2266 | EXTEND(SP, items); |
2267 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2268 | SP += items; | |
67955e0c PP |
2269 | PUTBACK ; |
2270 | } | |
2271 | } | |
3280af22 | 2272 | if (PL_curcopdb) { /* We assume that the first |
67955e0c PP |
2273 | XSUB in &DB::sub is the |
2274 | called one. */ | |
3280af22 NIS |
2275 | SAVESPTR(PL_curcop); |
2276 | PL_curcop = PL_curcopdb; | |
2277 | PL_curcopdb = NULL; | |
67955e0c PP |
2278 | } |
2279 | /* Do we need to open block here? XXXX */ | |
1d583055 | 2280 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 LW |
2281 | |
2282 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
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 NIS |
2287 | *(PL_stack_base + markix) = *PL_stack_sp; |
2288 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2289 | } |
a0d0e21e LW |
2290 | } |
2291 | LEAVE; | |
2292 | return NORMAL; | |
2293 | } | |
2294 | else { | |
2295 | dMARK; | |
2296 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2297 | AV* padlist = CvPADLIST(cv); |
2298 | SV** svp = AvARRAY(padlist); | |
533c011a | 2299 | push_return(PL_op->op_next); |
a0d0e21e LW |
2300 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2301 | PUSHSUB(cx); | |
2302 | CvDEPTH(cv)++; | |
6b35e009 GS |
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 LW |
2308 | if (CvDEPTH(cv) < 2) |
2309 | (void)SvREFCNT_inc(cv); | |
2310 | else { /* save temporaries on recursion? */ | |
93965878 | 2311 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
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 PP |
2320 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2321 | || *name == '&') /* anonymous code? */ | |
2322 | { | |
2323 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
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 LW |
2334 | } |
2335 | else { | |
748a9306 | 2336 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
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 LW |
2346 | svp = AvARRAY(padlist); |
2347 | } | |
2348 | } | |
6d4ff0d2 MB |
2349 | #ifdef USE_THREADS |
2350 | if (!hasargs) { | |
533c011a | 2351 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2352 | |
93965878 | 2353 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2354 | if (items) { |
2355 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2356 | EXTEND(SP, items); |
2357 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2358 | SP += items; | |
6d4ff0d2 MB |
2359 | PUTBACK ; |
2360 | } | |
2361 | } | |
2362 | #endif /* USE_THREADS */ | |
3280af22 NIS |
2363 | SAVESPTR(PL_curpad); |
2364 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
6d4ff0d2 MB |
2365 | #ifndef USE_THREADS |
2366 | if (hasargs) | |
2367 | #endif /* USE_THREADS */ | |
2368 | { | |
2369 | AV* av; | |
a0d0e21e LW |
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 LW |
2377 | if (AvREAL(av)) { |
2378 | av_clear(av); | |
2379 | AvREAL_off(av); | |
2380 | } | |
6d4ff0d2 | 2381 | #ifndef USE_THREADS |
3280af22 NIS |
2382 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2383 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2384 | #endif /* USE_THREADS */ |
2385 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
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 LW |
2403 | |
2404 | while (items--) { | |
2405 | if (*MARK) | |
2406 | SvTEMP_off(*MARK); | |
2407 | MARK++; | |
2408 | } | |
2409 | } | |
4a925ff6 GS |
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 LW |
2421 | RETURNOP(CvSTART(cv)); |
2422 | } | |
2423 | } | |
2424 | ||
44a8e56a | 2425 | void |
8ac85365 | 2426 | sub_crush_depth(CV *cv) |
44a8e56a PP |
2427 | { |
2428 | if (CvANON(cv)) | |
599cee73 | 2429 | warner(WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a PP |
2430 | else { |
2431 | SV* tmpstr = sv_newmortal(); | |
2432 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
599cee73 PM |
2433 | warner(WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
2434 | SvPVX(tmpstr)); | |
44a8e56a PP |
2435 | } |
2436 | } | |
2437 | ||
a0d0e21e LW |
2438 | PP(pp_aelem) |
2439 | { | |
4e35701f | 2440 | djSP; |
a0d0e21e | 2441 | SV** svp; |
748a9306 | 2442 | I32 elem = POPi; |
68dc0745 | 2443 | AV* av = (AV*)POPs; |
533c011a NIS |
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 LW |
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 PP |
2455 | SV* lv; |
2456 | if (!defer) | |
22c35a8c | 2457 | DIE(PL_no_aelem, elem); |
68dc0745 PP |
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 NIS |
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 GS |
2474 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2475 | sv = sv_mortalcopy(sv); | |
2476 | PUSHs(sv); | |
a0d0e21e LW |
2477 | RETURN; |
2478 | } | |
2479 | ||
02a9e968 | 2480 | void |
8ac85365 | 2481 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2482 | { |
2483 | if (SvGMAGICAL(sv)) | |
2484 | mg_get(sv); | |
2485 | if (!SvOK(sv)) { | |
2486 | if (SvREADONLY(sv)) | |
22c35a8c | 2487 | croak(PL_no_modify); |
5f05dabc PP |
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 PP |
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 CS |
2506 | SvROK_on(sv); |
2507 | SvSETMAGIC(sv); | |
2508 | } | |
2509 | } | |
2510 | ||
a0d0e21e LW |
2511 | PP(pp_method) |
2512 | { | |
4e35701f | 2513 | djSP; |
a0d0e21e LW |
2514 | SV* sv; |
2515 | SV* ob; | |
2516 | GV* gv; | |
56304f61 CS |
2517 | HV* stash; |
2518 | char* name; | |
ac91690f CS |
2519 | char* packname; |
2520 | STRLEN packlen; | |
a0d0e21e | 2521 | |
fb73857a PP |
2522 | if (SvROK(TOPs)) { |
2523 | sv = SvRV(TOPs); | |
2524 | if (SvTYPE(sv) == SVt_PVCV) { | |
2525 | SETs(sv); | |
2526 | RETURN; | |
2527 | } | |
2528 | } | |
2529 | ||
3280af22 NIS |
2530 | name = SvPV(TOPs, PL_na); |
2531 | sv = *(PL_stack_base + TOPMARK + 1); | |
a0d0e21e | 2532 | |
16d20bd9 AD |
2533 | if (SvGMAGICAL(sv)) |
2534 | mg_get(sv); | |
a0d0e21e | 2535 | if (SvROK(sv)) |
16d20bd9 | 2536 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2537 | else { |
2538 | GV* iogv; | |
a0d0e21e | 2539 | |
56304f61 | 2540 | packname = Nullch; |
a0d0e21e | 2541 | if (!SvOK(sv) || |
56304f61 | 2542 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2543 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2544 | !(ob=(SV*)GvIO(iogv))) | |
2545 | { | |
834a4ddd LW |
2546 | if (!packname || |
2547 | ((*(U8*)packname >= 0xc0 && IN_UTF8) | |
b86a2fa7 | 2548 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2549 | : !isIDFIRST(*packname) |
2550 | )) | |
2551 | { | |
72b5445b GS |
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 LW |
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 CS |
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 CS |
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 LW |
2592 | RETURN; |
2593 | } | |
22239a37 | 2594 |