Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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" | |
864dbfa3 | 19 | #define PERL_IN_PP_HOT_C |
a0d0e21e LW |
20 | #include "perl.h" |
21 | ||
8ac85365 NIS |
22 | #ifdef I_UNISTD |
23 | #include <unistd.h> | |
24 | #endif | |
9d116dd7 JH |
25 | #ifdef I_FCNTL |
26 | #include <fcntl.h> | |
27 | #endif | |
28 | #ifdef I_SYS_FILE | |
29 | #include <sys/file.h> | |
30 | #endif | |
8ac85365 | 31 | |
a0ed51b3 LW |
32 | #define HOP(pos,off) (IN_UTF8 ? utf8_hop(pos, off) : (pos + off)) |
33 | ||
a0d0e21e LW |
34 | /* Hot code. */ |
35 | ||
11343788 | 36 | #ifdef USE_THREADS |
864dbfa3 GS |
37 | STATIC void |
38 | unset_cvowner(pTHX_ void *cvarg) | |
11343788 MB |
39 | { |
40 | register CV* cv = (CV *) cvarg; | |
41 | #ifdef DEBUGGING | |
42 | dTHR; | |
43 | #endif /* DEBUGGING */ | |
44 | ||
8b73bbec | 45 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
1fd28e87 | 46 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 | 47 | MUTEX_LOCK(CvMUTEXP(cv)); |
8b73bbec | 48 | DEBUG_S(if (CvDEPTH(cv) != 0) |
77a005ab MB |
49 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
50 | CvDEPTH(cv));); | |
11343788 MB |
51 | assert(thr == CvOWNER(cv)); |
52 | CvOWNER(cv) = 0; | |
11343788 MB |
53 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
54 | SvREFCNT_dec(cv); | |
55 | } | |
11343788 MB |
56 | #endif /* USE_THREADS */ |
57 | ||
a0d0e21e LW |
58 | PP(pp_const) |
59 | { | |
4e35701f | 60 | djSP; |
a0d0e21e LW |
61 | XPUSHs(cSVOP->op_sv); |
62 | RETURN; | |
63 | } | |
64 | ||
65 | PP(pp_nextstate) | |
66 | { | |
533c011a | 67 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 68 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 69 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
70 | FREETMPS; |
71 | return NORMAL; | |
72 | } | |
73 | ||
74 | PP(pp_gvsv) | |
75 | { | |
4e35701f | 76 | djSP; |
924508f0 | 77 | EXTEND(SP,1); |
533c011a | 78 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e LW |
79 | PUSHs(save_scalar(cGVOP->op_gv)); |
80 | else | |
81 | PUSHs(GvSV(cGVOP->op_gv)); | |
82 | RETURN; | |
83 | } | |
84 | ||
85 | PP(pp_null) | |
86 | { | |
87 | return NORMAL; | |
88 | } | |
89 | ||
90 | PP(pp_pushmark) | |
91 | { | |
3280af22 | 92 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
93 | return NORMAL; |
94 | } | |
95 | ||
96 | PP(pp_stringify) | |
97 | { | |
4e35701f | 98 | djSP; dTARGET; |
a0d0e21e LW |
99 | STRLEN len; |
100 | char *s; | |
101 | s = SvPV(TOPs,len); | |
102 | sv_setpvn(TARG,s,len); | |
103 | SETTARG; | |
104 | RETURN; | |
105 | } | |
106 | ||
107 | PP(pp_gv) | |
108 | { | |
4e35701f | 109 | djSP; |
a0d0e21e LW |
110 | XPUSHs((SV*)cGVOP->op_gv); |
111 | RETURN; | |
112 | } | |
113 | ||
114 | PP(pp_and) | |
115 | { | |
4e35701f | 116 | djSP; |
a0d0e21e LW |
117 | if (!SvTRUE(TOPs)) |
118 | RETURN; | |
119 | else { | |
120 | --SP; | |
121 | RETURNOP(cLOGOP->op_other); | |
122 | } | |
123 | } | |
124 | ||
125 | PP(pp_sassign) | |
126 | { | |
4e35701f | 127 | djSP; dPOPTOPssrl; |
748a9306 LW |
128 | MAGIC *mg; |
129 | ||
533c011a | 130 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
131 | SV *temp; |
132 | temp = left; left = right; right = temp; | |
133 | } | |
3280af22 | 134 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 135 | TAINT_NOT; |
54310121 | 136 | SvSetMagicSV(right, left); |
a0d0e21e LW |
137 | SETs(right); |
138 | RETURN; | |
139 | } | |
140 | ||
141 | PP(pp_cond_expr) | |
142 | { | |
4e35701f | 143 | djSP; |
a0d0e21e LW |
144 | if (SvTRUEx(POPs)) |
145 | RETURNOP(cCONDOP->op_true); | |
146 | else | |
147 | RETURNOP(cCONDOP->op_false); | |
148 | } | |
149 | ||
150 | PP(pp_unstack) | |
151 | { | |
152 | I32 oldsave; | |
153 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 154 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 155 | FREETMPS; |
3280af22 | 156 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
157 | LEAVE_SCOPE(oldsave); |
158 | return NORMAL; | |
159 | } | |
160 | ||
a0d0e21e LW |
161 | PP(pp_concat) |
162 | { | |
4e35701f | 163 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
164 | { |
165 | dPOPTOPssrl; | |
a0d0e21e LW |
166 | STRLEN len; |
167 | char *s; | |
168 | if (TARG != left) { | |
169 | s = SvPV(left,len); | |
170 | sv_setpvn(TARG,s,len); | |
171 | } | |
c07a80fd | 172 | else if (SvGMAGICAL(TARG)) |
173 | mg_get(TARG); | |
7a4c00b4 | 174 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 175 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 176 | s = SvPV_force(TARG, len); |
4633a7c4 | 177 | } |
a0d0e21e | 178 | s = SvPV(right,len); |
68dc0745 | 179 | if (SvOK(TARG)) |
180 | sv_catpvn(TARG,s,len); | |
181 | else | |
182 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
183 | SETTARG; |
184 | RETURN; | |
748a9306 | 185 | } |
a0d0e21e LW |
186 | } |
187 | ||
188 | PP(pp_padsv) | |
189 | { | |
4e35701f | 190 | djSP; dTARGET; |
a0d0e21e | 191 | XPUSHs(TARG); |
533c011a NIS |
192 | if (PL_op->op_flags & OPf_MOD) { |
193 | if (PL_op->op_private & OPpLVAL_INTRO) | |
194 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
195 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 196 | PUTBACK; |
533c011a | 197 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
198 | SPAGAIN; |
199 | } | |
4633a7c4 | 200 | } |
a0d0e21e LW |
201 | RETURN; |
202 | } | |
203 | ||
204 | PP(pp_readline) | |
205 | { | |
f5284f61 | 206 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 207 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 GS |
208 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
209 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) | |
f5284f61 | 210 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 | 211 | else { |
f5284f61 IZ |
212 | dSP; |
213 | XPUSHs((SV*)PL_last_in_gv); | |
214 | PUTBACK; | |
215 | pp_rv2gv(ARGS); | |
216 | PL_last_in_gv = (GV*)(*PL_stack_sp--); | |
f5284f61 IZ |
217 | } |
218 | } | |
a0d0e21e LW |
219 | return do_readline(); |
220 | } | |
221 | ||
222 | PP(pp_eq) | |
223 | { | |
4e35701f | 224 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
225 | { |
226 | dPOPnv; | |
54310121 | 227 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
228 | RETURN; |
229 | } | |
230 | } | |
231 | ||
232 | PP(pp_preinc) | |
233 | { | |
4e35701f | 234 | djSP; |
68dc0745 | 235 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
22c35a8c | 236 | croak(PL_no_modify); |
25da4f38 | 237 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff | 238 | SvIVX(TOPs) != IV_MAX) |
239 | { | |
748a9306 | 240 | ++SvIVX(TOPs); |
55497cff | 241 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
242 | } |
243 | else | |
244 | sv_inc(TOPs); | |
a0d0e21e LW |
245 | SvSETMAGIC(TOPs); |
246 | return NORMAL; | |
247 | } | |
248 | ||
249 | PP(pp_or) | |
250 | { | |
4e35701f | 251 | djSP; |
a0d0e21e LW |
252 | if (SvTRUE(TOPs)) |
253 | RETURN; | |
254 | else { | |
255 | --SP; | |
256 | RETURNOP(cLOGOP->op_other); | |
257 | } | |
258 | } | |
259 | ||
260 | PP(pp_add) | |
261 | { | |
4e35701f | 262 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 263 | { |
7a4c00b4 | 264 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
265 | SETn( left + right ); |
266 | RETURN; | |
267 | } | |
268 | } | |
269 | ||
270 | PP(pp_aelemfast) | |
271 | { | |
4e35701f | 272 | djSP; |
a0d0e21e | 273 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a NIS |
274 | U32 lval = PL_op->op_flags & OPf_MOD; |
275 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 276 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 277 | EXTEND(SP, 1); |
be6c24e0 GS |
278 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
279 | sv = sv_mortalcopy(sv); | |
280 | PUSHs(sv); | |
a0d0e21e LW |
281 | RETURN; |
282 | } | |
283 | ||
284 | PP(pp_join) | |
285 | { | |
4e35701f | 286 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
287 | MARK++; |
288 | do_join(TARG, *MARK, MARK, SP); | |
289 | SP = MARK; | |
290 | SETs(TARG); | |
291 | RETURN; | |
292 | } | |
293 | ||
294 | PP(pp_pushre) | |
295 | { | |
4e35701f | 296 | djSP; |
44a8e56a | 297 | #ifdef DEBUGGING |
298 | /* | |
299 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
300 | * will be enough to hold an OP*. | |
301 | */ | |
302 | SV* sv = sv_newmortal(); | |
303 | sv_upgrade(sv, SVt_PVLV); | |
304 | LvTYPE(sv) = '/'; | |
533c011a | 305 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 306 | XPUSHs(sv); |
307 | #else | |
6b88bc9c | 308 | XPUSHs((SV*)PL_op); |
44a8e56a | 309 | #endif |
a0d0e21e LW |
310 | RETURN; |
311 | } | |
312 | ||
313 | /* Oversized hot code. */ | |
314 | ||
315 | PP(pp_print) | |
316 | { | |
4e35701f | 317 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
318 | GV *gv; |
319 | IO *io; | |
760ac839 | 320 | register PerlIO *fp; |
236988e4 | 321 | MAGIC *mg; |
2d8e6c8d | 322 | STRLEN n_a; |
a0d0e21e | 323 | |
533c011a | 324 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
325 | gv = (GV*)*++MARK; |
326 | else | |
3280af22 | 327 | gv = PL_defoutgv; |
33c27489 | 328 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 | 329 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
330 | /* If using default handle then we need to make space to |
331 | * pass object as 1st arg, so move other args up ... | |
332 | */ | |
4352c267 | 333 | MEXTEND(SP, 1); |
68dc0745 | 334 | ++MARK; |
335 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
336 | ++SP; | |
337 | } | |
338 | PUSHMARK(MARK - 1); | |
33c27489 | 339 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 340 | PUTBACK; |
236988e4 | 341 | ENTER; |
864dbfa3 | 342 | call_method("PRINT", G_SCALAR); |
236988e4 | 343 | LEAVE; |
344 | SPAGAIN; | |
68dc0745 | 345 | MARK = ORIGMARK + 1; |
346 | *MARK = *SP; | |
347 | SP = MARK; | |
236988e4 | 348 | RETURN; |
349 | } | |
a0d0e21e | 350 | if (!(io = GvIO(gv))) { |
599cee73 | 351 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 | 352 | SV* sv = sv_newmortal(); |
4f732624 | 353 | gv_fullname3(sv, gv, Nullch); |
2d8e6c8d | 354 | warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a)); |
748a9306 LW |
355 | } |
356 | ||
357 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
358 | goto just_say_no; |
359 | } | |
360 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 361 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
748a9306 | 362 | SV* sv = sv_newmortal(); |
4f732624 | 363 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 364 | if (IoIFP(io)) |
599cee73 | 365 | warner(WARN_IO, "Filehandle %s opened only for input", |
2d8e6c8d | 366 | SvPV(sv,n_a)); |
599cee73 PM |
367 | else if (ckWARN(WARN_CLOSED)) |
368 | warner(WARN_CLOSED, "print on closed filehandle %s", | |
2d8e6c8d | 369 | SvPV(sv,n_a)); |
a0d0e21e | 370 | } |
748a9306 | 371 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
372 | goto just_say_no; |
373 | } | |
374 | else { | |
375 | MARK++; | |
3280af22 | 376 | if (PL_ofslen) { |
a0d0e21e LW |
377 | while (MARK <= SP) { |
378 | if (!do_print(*MARK, fp)) | |
379 | break; | |
380 | MARK++; | |
381 | if (MARK <= SP) { | |
3280af22 | 382 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
383 | MARK--; |
384 | break; | |
385 | } | |
386 | } | |
387 | } | |
388 | } | |
389 | else { | |
390 | while (MARK <= SP) { | |
391 | if (!do_print(*MARK, fp)) | |
392 | break; | |
393 | MARK++; | |
394 | } | |
395 | } | |
396 | if (MARK <= SP) | |
397 | goto just_say_no; | |
398 | else { | |
3280af22 NIS |
399 | if (PL_orslen) |
400 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
401 | goto just_say_no; |
402 | ||
403 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 404 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
405 | goto just_say_no; |
406 | } | |
407 | } | |
408 | SP = ORIGMARK; | |
3280af22 | 409 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
410 | RETURN; |
411 | ||
412 | just_say_no: | |
413 | SP = ORIGMARK; | |
3280af22 | 414 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
415 | RETURN; |
416 | } | |
417 | ||
418 | PP(pp_rv2av) | |
419 | { | |
f5284f61 | 420 | djSP; dTOPss; |
a0d0e21e LW |
421 | AV *av; |
422 | ||
423 | if (SvROK(sv)) { | |
424 | wasref: | |
f5284f61 IZ |
425 | tryAMAGICunDEREF(to_av); |
426 | ||
a0d0e21e LW |
427 | av = (AV*)SvRV(sv); |
428 | if (SvTYPE(av) != SVt_PVAV) | |
429 | DIE("Not an ARRAY reference"); | |
533c011a | 430 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 431 | SETs((SV*)av); |
a0d0e21e LW |
432 | RETURN; |
433 | } | |
434 | } | |
435 | else { | |
436 | if (SvTYPE(sv) == SVt_PVAV) { | |
437 | av = (AV*)sv; | |
533c011a | 438 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 439 | SETs((SV*)av); |
a0d0e21e LW |
440 | RETURN; |
441 | } | |
442 | } | |
443 | else { | |
67955e0c | 444 | GV *gv; |
445 | ||
a0d0e21e | 446 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 447 | char *sym; |
2d8e6c8d | 448 | STRLEN n_a; |
748a9306 | 449 | |
a0d0e21e LW |
450 | if (SvGMAGICAL(sv)) { |
451 | mg_get(sv); | |
452 | if (SvROK(sv)) | |
453 | goto wasref; | |
454 | } | |
455 | if (!SvOK(sv)) { | |
533c011a NIS |
456 | if (PL_op->op_flags & OPf_REF || |
457 | PL_op->op_private & HINT_STRICT_REFS) | |
22c35a8c | 458 | DIE(PL_no_usym, "an ARRAY"); |
599cee73 | 459 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c | 460 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
f5284f61 | 461 | if (GIMME == G_ARRAY) { |
c2444246 | 462 | (void)POPs; |
4633a7c4 | 463 | RETURN; |
f5284f61 IZ |
464 | } |
465 | RETSETUNDEF; | |
a0d0e21e | 466 | } |
2d8e6c8d | 467 | sym = SvPV(sv,n_a); |
35cd451c GS |
468 | if ((PL_op->op_flags & OPf_SPECIAL) && |
469 | !(PL_op->op_flags & OPf_MOD)) | |
470 | { | |
471 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
472 | if (!gv) | |
473 | RETSETUNDEF; | |
474 | } | |
475 | else { | |
476 | if (PL_op->op_private & HINT_STRICT_REFS) | |
477 | DIE(PL_no_symref, sym, "an ARRAY"); | |
478 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); | |
479 | } | |
480 | } | |
481 | else { | |
67955e0c | 482 | gv = (GV*)sv; |
a0d0e21e | 483 | } |
67955e0c | 484 | av = GvAVn(gv); |
533c011a | 485 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 486 | av = save_ary(gv); |
533c011a | 487 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 488 | SETs((SV*)av); |
a0d0e21e LW |
489 | RETURN; |
490 | } | |
491 | } | |
492 | } | |
493 | ||
494 | if (GIMME == G_ARRAY) { | |
495 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 496 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
497 | EXTEND(SP, maxarg); |
498 | if (SvRMAGICAL(av)) { | |
499 | U32 i; | |
500 | for (i=0; i < maxarg; i++) { | |
501 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 502 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
503 | } |
504 | } | |
505 | else { | |
506 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
507 | } | |
a0d0e21e LW |
508 | SP += maxarg; |
509 | } | |
510 | else { | |
511 | dTARGET; | |
512 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 513 | SETi(maxarg); |
a0d0e21e LW |
514 | } |
515 | RETURN; | |
516 | } | |
517 | ||
518 | PP(pp_rv2hv) | |
519 | { | |
4e35701f | 520 | djSP; dTOPss; |
a0d0e21e LW |
521 | HV *hv; |
522 | ||
523 | if (SvROK(sv)) { | |
524 | wasref: | |
f5284f61 IZ |
525 | tryAMAGICunDEREF(to_hv); |
526 | ||
a0d0e21e | 527 | hv = (HV*)SvRV(sv); |
c750a3ec | 528 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e | 529 | DIE("Not a HASH reference"); |
533c011a | 530 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
531 | SETs((SV*)hv); |
532 | RETURN; | |
533 | } | |
534 | } | |
535 | else { | |
c750a3ec | 536 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 537 | hv = (HV*)sv; |
533c011a | 538 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
539 | SETs((SV*)hv); |
540 | RETURN; | |
541 | } | |
542 | } | |
543 | else { | |
67955e0c | 544 | GV *gv; |
545 | ||
a0d0e21e | 546 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 547 | char *sym; |
2d8e6c8d | 548 | STRLEN n_a; |
748a9306 | 549 | |
a0d0e21e LW |
550 | if (SvGMAGICAL(sv)) { |
551 | mg_get(sv); | |
552 | if (SvROK(sv)) | |
553 | goto wasref; | |
554 | } | |
555 | if (!SvOK(sv)) { | |
533c011a NIS |
556 | if (PL_op->op_flags & OPf_REF || |
557 | PL_op->op_private & HINT_STRICT_REFS) | |
22c35a8c | 558 | DIE(PL_no_usym, "a HASH"); |
599cee73 | 559 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c | 560 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
4633a7c4 LW |
561 | if (GIMME == G_ARRAY) { |
562 | SP--; | |
563 | RETURN; | |
564 | } | |
a0d0e21e LW |
565 | RETSETUNDEF; |
566 | } | |
2d8e6c8d | 567 | sym = SvPV(sv,n_a); |
35cd451c GS |
568 | if ((PL_op->op_flags & OPf_SPECIAL) && |
569 | !(PL_op->op_flags & OPf_MOD)) | |
570 | { | |
571 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
572 | if (!gv) | |
573 | RETSETUNDEF; | |
574 | } | |
575 | else { | |
576 | if (PL_op->op_private & HINT_STRICT_REFS) | |
577 | DIE(PL_no_symref, sym, "a HASH"); | |
578 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); | |
579 | } | |
580 | } | |
581 | else { | |
67955e0c | 582 | gv = (GV*)sv; |
a0d0e21e | 583 | } |
67955e0c | 584 | hv = GvHVn(gv); |
533c011a | 585 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 586 | hv = save_hash(gv); |
533c011a | 587 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
588 | SETs((SV*)hv); |
589 | RETURN; | |
590 | } | |
591 | } | |
592 | } | |
593 | ||
594 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 595 | *PL_stack_sp = (SV*)hv; |
a0d0e21e LW |
596 | return do_kv(ARGS); |
597 | } | |
598 | else { | |
599 | dTARGET; | |
4b154ab5 GA |
600 | if (SvTYPE(hv) == SVt_PVAV) |
601 | hv = avhv_keys((AV*)hv); | |
46fc3d4c | 602 | if (HvFILL(hv)) |
603 | sv_setpvf(TARG, "%ld/%ld", | |
604 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
605 | else |
606 | sv_setiv(TARG, 0); | |
c750a3ec | 607 | |
a0d0e21e LW |
608 | SETTARG; |
609 | RETURN; | |
610 | } | |
611 | } | |
612 | ||
613 | PP(pp_aassign) | |
614 | { | |
4e35701f | 615 | djSP; |
3280af22 NIS |
616 | SV **lastlelem = PL_stack_sp; |
617 | SV **lastrelem = PL_stack_base + POPMARK; | |
618 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
619 | SV **firstlelem = lastrelem + 1; |
620 | ||
621 | register SV **relem; | |
622 | register SV **lelem; | |
623 | ||
624 | register SV *sv; | |
625 | register AV *ary; | |
626 | ||
54310121 | 627 | I32 gimme; |
a0d0e21e LW |
628 | HV *hash; |
629 | I32 i; | |
630 | int magic; | |
631 | ||
3280af22 | 632 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
633 | |
634 | /* If there's a common identifier on both sides we have to take | |
635 | * special care that assigning the identifier on the left doesn't | |
636 | * clobber a value on the right that's used later in the list. | |
637 | */ | |
533c011a | 638 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 | 639 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e LW |
640 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
641 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
642 | if (sv = *relem) { |
643 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 644 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 645 | } |
a0d0e21e LW |
646 | } |
647 | } | |
648 | ||
649 | relem = firstrelem; | |
650 | lelem = firstlelem; | |
651 | ary = Null(AV*); | |
652 | hash = Null(HV*); | |
653 | while (lelem <= lastlelem) { | |
bbce6d69 | 654 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
655 | sv = *lelem++; |
656 | switch (SvTYPE(sv)) { | |
657 | case SVt_PVAV: | |
658 | ary = (AV*)sv; | |
748a9306 | 659 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
660 | |
661 | av_clear(ary); | |
7e42bd57 | 662 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
663 | i = 0; |
664 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 665 | SV **didstore; |
a0d0e21e LW |
666 | sv = NEWSV(28,0); |
667 | assert(*relem); | |
668 | sv_setsv(sv,*relem); | |
669 | *(relem++) = sv; | |
5117ca91 GS |
670 | didstore = av_store(ary,i++,sv); |
671 | if (magic) { | |
fb73857a | 672 | if (SvSMAGICAL(sv)) |
673 | mg_set(sv); | |
5117ca91 | 674 | if (!didstore) |
8127e0e3 | 675 | sv_2mortal(sv); |
5117ca91 | 676 | } |
bbce6d69 | 677 | TAINT_NOT; |
a0d0e21e LW |
678 | } |
679 | break; | |
680 | case SVt_PVHV: { | |
a0d0e21e LW |
681 | SV *tmpstr; |
682 | ||
683 | hash = (HV*)sv; | |
748a9306 | 684 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
685 | hv_clear(hash); |
686 | ||
687 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 688 | HE *didstore; |
4633a7c4 | 689 | if (*relem) |
a0d0e21e | 690 | sv = *(relem++); |
4633a7c4 | 691 | else |
3280af22 | 692 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
693 | tmpstr = NEWSV(29,0); |
694 | if (*relem) | |
695 | sv_setsv(tmpstr,*relem); /* value */ | |
696 | *(relem++) = tmpstr; | |
5117ca91 GS |
697 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
698 | if (magic) { | |
fb73857a | 699 | if (SvSMAGICAL(tmpstr)) |
700 | mg_set(tmpstr); | |
5117ca91 | 701 | if (!didstore) |
8127e0e3 | 702 | sv_2mortal(tmpstr); |
5117ca91 | 703 | } |
bbce6d69 | 704 | TAINT_NOT; |
8e07c86e | 705 | } |
6a0deba8 GS |
706 | if (relem == lastrelem) { |
707 | if (*relem) { | |
708 | HE *didstore; | |
599cee73 | 709 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 GS |
710 | if (relem == firstrelem && |
711 | SvROK(*relem) && | |
712 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
713 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
599cee73 | 714 | warner(WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 | 715 | else |
599cee73 | 716 | warner(WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 GS |
717 | } |
718 | tmpstr = NEWSV(29,0); | |
719 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
720 | if (magic) { | |
721 | if (SvSMAGICAL(tmpstr)) | |
722 | mg_set(tmpstr); | |
723 | if (!didstore) | |
8127e0e3 | 724 | sv_2mortal(tmpstr); |
6a0deba8 GS |
725 | } |
726 | TAINT_NOT; | |
727 | } | |
728 | relem++; | |
1930e939 | 729 | } |
a0d0e21e LW |
730 | } |
731 | break; | |
732 | default: | |
6fc92669 GS |
733 | if (SvIMMORTAL(sv)) { |
734 | if (relem <= lastrelem) | |
735 | relem++; | |
736 | break; | |
a0d0e21e LW |
737 | } |
738 | if (relem <= lastrelem) { | |
739 | sv_setsv(sv, *relem); | |
740 | *(relem++) = sv; | |
741 | } | |
742 | else | |
3280af22 | 743 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
744 | SvSETMAGIC(sv); |
745 | break; | |
746 | } | |
747 | } | |
3280af22 NIS |
748 | if (PL_delaymagic & ~DM_DELAY) { |
749 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 750 | #ifdef HAS_SETRESUID |
b28d0864 | 751 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
752 | #else |
753 | # ifdef HAS_SETREUID | |
3280af22 | 754 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
755 | # else |
756 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
757 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
758 | (void)setruid(PL_uid); | |
759 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 760 | } |
56febc5e AD |
761 | # endif /* HAS_SETRUID */ |
762 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
763 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
764 | (void)seteuid(PL_uid); | |
765 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 766 | } |
56febc5e | 767 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
768 | if (PL_delaymagic & DM_UID) { |
769 | if (PL_uid != PL_euid) | |
a0d0e21e | 770 | DIE("No setreuid available"); |
b28d0864 | 771 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 772 | } |
56febc5e AD |
773 | # endif /* HAS_SETREUID */ |
774 | #endif /* HAS_SETRESUID */ | |
3280af22 NIS |
775 | PL_uid = (int)PerlProc_getuid(); |
776 | PL_euid = (int)PerlProc_geteuid(); | |
a0d0e21e | 777 | } |
3280af22 | 778 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 779 | #ifdef HAS_SETRESGID |
b28d0864 | 780 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
781 | #else |
782 | # ifdef HAS_SETREGID | |
3280af22 | 783 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
784 | # else |
785 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
786 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
787 | (void)setrgid(PL_gid); | |
788 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 789 | } |
56febc5e AD |
790 | # endif /* HAS_SETRGID */ |
791 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
792 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
793 | (void)setegid(PL_gid); | |
794 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 795 | } |
56febc5e | 796 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
797 | if (PL_delaymagic & DM_GID) { |
798 | if (PL_gid != PL_egid) | |
a0d0e21e | 799 | DIE("No setregid available"); |
b28d0864 | 800 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 801 | } |
56febc5e AD |
802 | # endif /* HAS_SETREGID */ |
803 | #endif /* HAS_SETRESGID */ | |
3280af22 NIS |
804 | PL_gid = (int)PerlProc_getgid(); |
805 | PL_egid = (int)PerlProc_getegid(); | |
a0d0e21e | 806 | } |
3280af22 | 807 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 808 | } |
3280af22 | 809 | PL_delaymagic = 0; |
54310121 | 810 | |
811 | gimme = GIMME_V; | |
812 | if (gimme == G_VOID) | |
813 | SP = firstrelem - 1; | |
814 | else if (gimme == G_SCALAR) { | |
815 | dTARGET; | |
816 | SP = firstrelem; | |
817 | SETi(lastrelem - firstrelem + 1); | |
818 | } | |
819 | else { | |
a0d0e21e LW |
820 | if (ary || hash) |
821 | SP = lastrelem; | |
822 | else | |
823 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 824 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 825 | while (relem <= SP) |
3280af22 | 826 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 827 | } |
54310121 | 828 | RETURN; |
a0d0e21e LW |
829 | } |
830 | ||
8782bef2 GB |
831 | PP(pp_qr) |
832 | { | |
833 | djSP; | |
834 | register PMOP *pm = cPMOP; | |
835 | SV *rv = sv_newmortal(); | |
57668c4d | 836 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
837 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
838 | RETURNX(PUSHs(rv)); | |
839 | } | |
840 | ||
a0d0e21e LW |
841 | PP(pp_match) |
842 | { | |
4e35701f | 843 | djSP; dTARG; |
a0d0e21e LW |
844 | register PMOP *pm = cPMOP; |
845 | register char *t; | |
846 | register char *s; | |
847 | char *strend; | |
848 | I32 global; | |
0ef3e39e | 849 | I32 r_flags = 0; |
cf93c79d IZ |
850 | char *truebase; /* Start of string, may be |
851 | relocated if REx engine | |
852 | copies the string. */ | |
d9f97599 | 853 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 854 | bool rxtainted; |
a0d0e21e LW |
855 | I32 gimme = GIMME; |
856 | STRLEN len; | |
748a9306 | 857 | I32 minmatch = 0; |
3280af22 | 858 | I32 oldsave = PL_savestack_ix; |
f86702cc | 859 | I32 update_minmatch = 1; |
e60df1fa | 860 | I32 had_zerolen = 0; |
a0d0e21e | 861 | |
533c011a | 862 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
863 | TARG = POPs; |
864 | else { | |
54b9620d | 865 | TARG = DEFSV; |
a0d0e21e LW |
866 | EXTEND(SP,1); |
867 | } | |
c277df42 | 868 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
869 | s = SvPV(TARG, len); |
870 | strend = s + len; | |
871 | if (!s) | |
872 | DIE("panic: do_match"); | |
b3eb6a9b | 873 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 874 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 875 | TAINT_NOT; |
a0d0e21e | 876 | |
48c036b1 | 877 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 878 | failure: |
a0d0e21e LW |
879 | if (gimme == G_ARRAY) |
880 | RETURN; | |
881 | RETPUSHNO; | |
882 | } | |
883 | ||
3280af22 NIS |
884 | if (!rx->prelen && PL_curpm) { |
885 | pm = PL_curpm; | |
d9f97599 | 886 | rx = pm->op_pmregexp; |
a0d0e21e | 887 | } |
d9f97599 | 888 | if (rx->minlen > len) goto failure; |
c277df42 | 889 | |
a0d0e21e | 890 | truebase = t = s; |
ad94a511 IZ |
891 | |
892 | /* XXXX What part of this is needed with true \G-support? */ | |
a0d0e21e | 893 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d | 894 | rx->startp[0] = -1; |
a0d0e21e LW |
895 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
896 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 897 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 898 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d | 899 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
900 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
901 | r_flags |= REXEC_IGNOREPOS; | |
cf93c79d | 902 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 903 | } |
748a9306 | 904 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 905 | update_minmatch = 0; |
748a9306 | 906 | } |
a0d0e21e LW |
907 | } |
908 | } | |
0ef3e39e HS |
909 | if ((gimme != G_ARRAY && !global && rx->nparens) |
910 | || SvTEMP(TARG) || PL_sawampersand) | |
911 | r_flags |= REXEC_COPY_STR; | |
22e551b9 IZ |
912 | if (SvSCREAM(TARG) && rx->check_substr |
913 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
914 | && SvVALID(rx->check_substr)) | |
915 | r_flags |= REXEC_SCREAM; | |
916 | ||
a0d0e21e | 917 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
918 | SAVEINT(PL_multiline); |
919 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
920 | } |
921 | ||
922 | play_it_again: | |
cf93c79d IZ |
923 | if (global && rx->startp[0] != -1) { |
924 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 925 | if ((s + rx->minlen) > strend) |
a0d0e21e | 926 | goto nope; |
f86702cc | 927 | if (update_minmatch++) |
e60df1fa | 928 | minmatch = had_zerolen; |
a0d0e21e | 929 | } |
d9f97599 GS |
930 | if (rx->check_substr) { |
931 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
cf93c79d IZ |
932 | SV *c = rx->check_substr; |
933 | ||
22e551b9 | 934 | if (r_flags & REXEC_SCREAM) { |
c277df42 | 935 | I32 p = -1; |
a0ed51b3 | 936 | char *b; |
cf93c79d IZ |
937 | |
938 | if (PL_screamfirst[BmRARE(c)] < 0 | |
939 | && !( BmRARE(c) == '\n' && (BmPREVIOUS(c) == SvCUR(c) - 1) | |
940 | && SvTAIL(c) )) | |
a0d0e21e | 941 | goto nope; |
a0ed51b3 | 942 | |
dfe13c55 | 943 | b = (char*)HOP((U8*)s, rx->check_offset_min); |
cf93c79d | 944 | if (!(s = screaminstr(TARG, c, b - s, 0, &p, 0))) |
a0d0e21e | 945 | goto nope; |
a0ed51b3 LW |
946 | |
947 | if ((rx->reganch & ROPT_CHECK_ALL) | |
cf93c79d | 948 | && !PL_sawampersand && !SvTAIL(c)) |
a0d0e21e LW |
949 | goto yup; |
950 | } | |
a0ed51b3 | 951 | else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min), |
cf93c79d IZ |
952 | (unsigned char*)strend, c, |
953 | PL_multiline ? FBMrf_MULTILINE : 0))) | |
a0d0e21e | 954 | goto nope; |
3280af22 | 955 | else if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) |
a0d0e21e | 956 | goto yup; |
ee027f1d | 957 | if (s && rx->check_offset_max < s - t) { |
cf93c79d | 958 | ++BmUSEFUL(c); |
dfe13c55 | 959 | s = (char*)HOP((U8*)s, -rx->check_offset_max); |
a0d0e21e LW |
960 | } |
961 | else | |
962 | s = t; | |
963 | } | |
c277df42 IZ |
964 | /* Now checkstring is fixed, i.e. at fixed offset from the |
965 | beginning of match, and the match is anchored at s. */ | |
3280af22 | 966 | else if (!PL_multiline) { /* Anchored near beginning of string. */ |
c277df42 | 967 | I32 slen; |
dfe13c55 | 968 | char *b = (char*)HOP((U8*)s, rx->check_offset_min); |
cf93c79d IZ |
969 | |
970 | if (SvTAIL(rx->check_substr)) { | |
971 | slen = SvCUR(rx->check_substr); /* >= 1 */ | |
972 | ||
973 | if ( strend - b > slen || strend - b < slen - 1 ) | |
974 | goto nope; | |
975 | if ( strend - b == slen && strend[-1] != '\n') | |
976 | goto nope; | |
977 | /* Now should match b[0..slen-2] */ | |
978 | slen--; | |
979 | if (slen && (*SvPVX(rx->check_substr) != *b | |
980 | || (slen > 1 | |
981 | && memNE(SvPVX(rx->check_substr), b, slen)))) | |
982 | goto nope; | |
983 | if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) | |
984 | goto yup; | |
985 | } else { /* Assume len > 0 */ | |
986 | if (*SvPVX(rx->check_substr) != *b | |
987 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
988 | && memNE(SvPVX(rx->check_substr), b, slen))) | |
989 | goto nope; | |
990 | if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) | |
991 | goto yup; | |
992 | } | |
a0d0e21e | 993 | } |
a0ed51b3 | 994 | if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0 |
d9f97599 GS |
995 | && rx->check_substr == rx->float_substr) { |
996 | SvREFCNT_dec(rx->check_substr); | |
997 | rx->check_substr = Nullsv; /* opt is being useless */ | |
998 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
999 | } |
1000 | } | |
22e551b9 | 1001 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 1002 | { |
3280af22 | 1003 | PL_curpm = pm; |
a0d0e21e | 1004 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1005 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
1006 | goto gotcha; |
1007 | } | |
1008 | else | |
1009 | goto ret_no; | |
1010 | /*NOTREACHED*/ | |
1011 | ||
1012 | gotcha: | |
72311751 GS |
1013 | if (rxtainted) |
1014 | RX_MATCH_TAINTED_on(rx); | |
1015 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
1016 | if (gimme == G_ARRAY) { |
1017 | I32 iters, i, len; | |
1018 | ||
d9f97599 | 1019 | iters = rx->nparens; |
a0d0e21e LW |
1020 | if (global && !iters) |
1021 | i = 1; | |
1022 | else | |
1023 | i = 0; | |
c277df42 | 1024 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 1025 | EXTEND(SP, iters + i); |
bbce6d69 | 1026 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
1027 | for (i = !i; i <= iters; i++) { |
1028 | PUSHs(sv_newmortal()); | |
1029 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
1030 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1031 | len = rx->endp[i] - rx->startp[i]; | |
1032 | s = rx->startp[i] + truebase; | |
a0d0e21e LW |
1033 | sv_setpvn(*SP, s, len); |
1034 | } | |
1035 | } | |
1036 | if (global) { | |
cf93c79d IZ |
1037 | had_zerolen = (rx->startp[0] != -1 |
1038 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 1039 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 1040 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1041 | goto play_it_again; |
1042 | } | |
f7e33566 | 1043 | else if (!iters) |
bde848c5 | 1044 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1045 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1046 | RETURN; |
1047 | } | |
1048 | else { | |
1049 | if (global) { | |
1050 | MAGIC* mg = 0; | |
1051 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1052 | mg = mg_find(TARG, 'g'); | |
1053 | if (!mg) { | |
1054 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1055 | mg = mg_find(TARG, 'g'); | |
1056 | } | |
cf93c79d IZ |
1057 | if (rx->startp[0] != -1) { |
1058 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1059 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1060 | mg->mg_flags |= MGf_MINMATCH; |
1061 | else | |
1062 | mg->mg_flags &= ~MGf_MINMATCH; | |
1063 | } | |
a0d0e21e | 1064 | } |
4633a7c4 | 1065 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1066 | RETPUSHYES; |
1067 | } | |
1068 | ||
c277df42 | 1069 | yup: /* Confirmed by check_substr */ |
72311751 GS |
1070 | if (rxtainted) |
1071 | RX_MATCH_TAINTED_on(rx); | |
1072 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
d9f97599 | 1073 | ++BmUSEFUL(rx->check_substr); |
3280af22 | 1074 | PL_curpm = pm; |
a0d0e21e | 1075 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1076 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1077 | if (RX_MATCH_COPIED(rx)) |
1078 | Safefree(rx->subbeg); | |
1079 | RX_MATCH_COPIED_off(rx); | |
1080 | rx->subbeg = Nullch; | |
a0d0e21e | 1081 | if (global) { |
d9f97599 | 1082 | rx->subbeg = truebase; |
cf93c79d IZ |
1083 | rx->startp[0] = s - truebase; |
1084 | rx->endp[0] = s - truebase + SvCUR(rx->check_substr); | |
1085 | rx->sublen = strend - truebase; | |
a0d0e21e | 1086 | goto gotcha; |
cf93c79d | 1087 | } |
3280af22 | 1088 | if (PL_sawampersand) { |
cf93c79d | 1089 | I32 off; |
a0d0e21e | 1090 | |
cf93c79d IZ |
1091 | rx->subbeg = savepvn(t, strend - t); |
1092 | rx->sublen = strend - t; | |
1093 | RX_MATCH_COPIED_on(rx); | |
1094 | off = rx->startp[0] = s - t; | |
1095 | rx->endp[0] = off + SvCUR(rx->check_substr); | |
1096 | } | |
1097 | else { /* startp/endp are used by @- @+. */ | |
1098 | rx->startp[0] = s - truebase; | |
1099 | rx->endp[0] = s - truebase + SvCUR(rx->check_substr); | |
a0d0e21e | 1100 | } |
4633a7c4 | 1101 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1102 | RETPUSHYES; |
1103 | ||
1104 | nope: | |
d9f97599 GS |
1105 | if (rx->check_substr) |
1106 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
1107 | |
1108 | ret_no: | |
c90c0ff4 | 1109 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1110 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1111 | MAGIC* mg = mg_find(TARG, 'g'); | |
1112 | if (mg) | |
565764a8 | 1113 | mg->mg_len = -1; |
a0d0e21e LW |
1114 | } |
1115 | } | |
4633a7c4 | 1116 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1117 | if (gimme == G_ARRAY) |
1118 | RETURN; | |
1119 | RETPUSHNO; | |
1120 | } | |
1121 | ||
1122 | OP * | |
864dbfa3 | 1123 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1124 | { |
1125 | dSP; dTARGETSTACKED; | |
1126 | register SV *sv; | |
1127 | STRLEN tmplen = 0; | |
1128 | STRLEN offset; | |
760ac839 | 1129 | PerlIO *fp; |
3280af22 | 1130 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1131 | register I32 type = PL_op->op_type; |
54310121 | 1132 | I32 gimme = GIMME_V; |
e79b0511 | 1133 | MAGIC *mg; |
a0d0e21e | 1134 | |
33c27489 | 1135 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 | 1136 | PUSHMARK(SP); |
33c27489 | 1137 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1138 | PUTBACK; |
1139 | ENTER; | |
864dbfa3 | 1140 | call_method("READLINE", gimme); |
e79b0511 | 1141 | LEAVE; |
1142 | SPAGAIN; | |
54310121 | 1143 | if (gimme == G_SCALAR) |
1144 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1145 | RETURN; |
1146 | } | |
a0d0e21e LW |
1147 | fp = Nullfp; |
1148 | if (io) { | |
1149 | fp = IoIFP(io); | |
1150 | if (!fp) { | |
1151 | if (IoFLAGS(io) & IOf_ARGV) { | |
1152 | if (IoFLAGS(io) & IOf_START) { | |
1153 | IoFLAGS(io) &= ~IOf_START; | |
1154 | IoLINES(io) = 0; | |
3280af22 | 1155 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 | 1156 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1157 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1158 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1159 | fp = IoIFP(io); |
1160 | goto have_fp; | |
a0d0e21e LW |
1161 | } |
1162 | } | |
3280af22 | 1163 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1164 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1165 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1166 | IoFLAGS(io) |= IOf_START; |
1167 | } | |
1168 | } | |
1169 | else if (type == OP_GLOB) { | |
1170 | SV *tmpcmd = NEWSV(55, 0); | |
1171 | SV *tmpglob = POPs; | |
1172 | ENTER; | |
1173 | SAVEFREESV(tmpcmd); | |
1174 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1175 | /* since spawning off a process is a real performance hit */ | |
1176 | { | |
1177 | #include <descrip.h> | |
1178 | #include <lib$routines.h> | |
1179 | #include <nam.h> | |
1180 | #include <rmsdef.h> | |
1181 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1182 | char vmsspec[NAM$C_MAXRSS+1]; | |
1183 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1184 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1185 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1186 | PerlIO *tmpfp; |
a0d0e21e LW |
1187 | STRLEN i; |
1188 | struct dsc$descriptor_s wilddsc | |
1189 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1190 | struct dsc$descriptor_vs rsdsc | |
1191 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1192 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1193 | ||
1194 | /* We could find out if there's an explicit dev/dir or version | |
1195 | by peeking into lib$find_file's internal context at | |
1196 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1197 | but that's unsupported, so I don't want to do it now and | |
1198 | have it bite someone in the future. */ | |
6ad3d225 | 1199 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1200 | cp = SvPV(tmpglob,i); |
1201 | for (; i; i--) { | |
1202 | if (cp[i] == ';') hasver = 1; | |
1203 | if (cp[i] == '.') { | |
1204 | if (sts) hasver = 1; | |
1205 | else sts = 1; | |
1206 | } | |
1207 | if (cp[i] == '/') { | |
1208 | hasdir = isunix = 1; | |
1209 | break; | |
748a9306 | 1210 | } |
a0d0e21e LW |
1211 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1212 | hasdir = 1; | |
1213 | break; | |
1214 | } | |
1215 | } | |
760ac839 | 1216 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1217 | Stat_t st; |
c6ed36e1 | 1218 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1219 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1220 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1221 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1222 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1223 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1224 | end = rstr + (unsigned long int) *rslt; | |
1225 | if (!hasver) while (*end != ';') end--; | |
1226 | *(end++) = '\n'; *end = '\0'; | |
1227 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1228 | if (hasdir) { | |
f86702cc | 1229 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1230 | begin = rstr; |
1231 | } | |
1232 | else { | |
1233 | begin = end; | |
1234 | while (*(--begin) != ']' && *begin != '>') ; | |
1235 | ++begin; | |
1236 | } | |
760ac839 | 1237 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1238 | } |
1239 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1240 | if (ok && sts != RMS$_NMF && |
1241 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1242 | if (!ok) { |
c07a80fd | 1243 | if (!(sts & 1)) { |
1244 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1245 | } | |
760ac839 | 1246 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1247 | fp = NULL; |
1248 | } | |
1249 | else { | |
760ac839 | 1250 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1251 | IoTYPE(io) = '<'; |
1252 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1253 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1254 | } |
1255 | } | |
1256 | } | |
1257 | #else /* !VMS */ | |
1258 | #ifdef DOSISH | |
67955e0c | 1259 | #ifdef OS2 |
1260 | sv_setpv(tmpcmd, "for a in "); | |
1261 | sv_catsv(tmpcmd, tmpglob); | |
1262 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1263 | #else | |
39e571d4 LM |
1264 | #ifdef DJGPP |
1265 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1266 | sv_catsv(tmpcmd, tmpglob); | |
1267 | #else | |
8736538c AS |
1268 | #ifdef CYGWIN32 |
1269 | sv_setpv(tmpcmd, "for a in "); | |
1270 | sv_catsv(tmpcmd, tmpglob); | |
1271 | sv_catpv(tmpcmd, "; do echo -e \"$a\\0\\c\"; done |"); | |
1272 | #else | |
a0d0e21e LW |
1273 | sv_setpv(tmpcmd, "perlglob "); |
1274 | sv_catsv(tmpcmd, tmpglob); | |
1275 | sv_catpv(tmpcmd, " |"); | |
8736538c | 1276 | #endif /* !CYGWIN */ |
39e571d4 | 1277 | #endif /* !DJGPP */ |
67955e0c | 1278 | #endif /* !OS2 */ |
1279 | #else /* !DOSISH */ | |
1280 | #if defined(CSH) | |
3280af22 | 1281 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1282 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1283 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1284 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1285 | #else |
1286 | sv_setpv(tmpcmd, "echo "); | |
1287 | sv_catsv(tmpcmd, tmpglob); | |
1288 | #if 'z' - 'a' == 25 | |
1289 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1290 | #else | |
1291 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1292 | #endif | |
1293 | #endif /* !CSH */ | |
67955e0c | 1294 | #endif /* !DOSISH */ |
3280af22 | 1295 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1296 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1297 | fp = IoIFP(io); |
1298 | #endif /* !VMS */ | |
1299 | LEAVE; | |
1300 | } | |
1301 | } | |
1302 | else if (type == OP_GLOB) | |
1303 | SP--; | |
1304 | } | |
1305 | if (!fp) { | |
3f4520fe GS |
1306 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
1307 | if (type == OP_GLOB) | |
1308 | warner(WARN_CLOSED, "glob failed (can't start child: %s)", | |
1309 | Strerror(errno)); | |
1310 | else | |
1311 | warner(WARN_CLOSED, "Read on closed filehandle <%s>", | |
1312 | GvENAME(PL_last_in_gv)); | |
1313 | } | |
54310121 | 1314 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1315 | (void)SvOK_off(TARG); |
1316 | PUSHTARG; | |
1317 | } | |
1318 | RETURN; | |
1319 | } | |
a2008d6d | 1320 | have_fp: |
54310121 | 1321 | if (gimme == G_SCALAR) { |
a0d0e21e | 1322 | sv = TARG; |
9607fc9c | 1323 | if (SvROK(sv)) |
1324 | sv_unref(sv); | |
a0d0e21e LW |
1325 | (void)SvUPGRADE(sv, SVt_PV); |
1326 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1327 | if (!tmplen) | |
1328 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1329 | if (type == OP_RCATLINE) | |
1330 | offset = SvCUR(sv); | |
1331 | else | |
1332 | offset = 0; | |
1333 | } | |
54310121 | 1334 | else { |
1335 | sv = sv_2mortal(NEWSV(57, 80)); | |
1336 | offset = 0; | |
1337 | } | |
fbad3eb5 GS |
1338 | |
1339 | /* flip-flop EOF state for a snarfed empty file */ | |
1340 | #define SNARF_EOF(gimme,rs,io,sv) \ | |
1341 | ((gimme != G_SCALAR || SvCUR(sv) \ | |
1342 | || (IoFLAGS(io) & IOf_NOLINE) || IoLINES(io) || !RsSNARF(rs)) \ | |
1343 | ? ((IoFLAGS(io) &= ~IOf_NOLINE), TRUE) \ | |
1344 | : ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) | |
1345 | ||
a0d0e21e | 1346 | for (;;) { |
fbad3eb5 GS |
1347 | if (!sv_gets(sv, fp, offset) |
1348 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1349 | { | |
760ac839 | 1350 | PerlIO_clearerr(fp); |
a0d0e21e | 1351 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1352 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1353 | if (fp) |
1354 | continue; | |
3280af22 | 1355 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1356 | IoFLAGS(io) |= IOf_START; |
1357 | } | |
1358 | else if (type == OP_GLOB) { | |
4eb79ab5 GS |
1359 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
1360 | warner(WARN_CLOSED, | |
1361 | "glob failed (child exited with status %d%s)", | |
1362 | STATUS_CURRENT >> 8, | |
cf494569 | 1363 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1364 | } |
a0d0e21e | 1365 | } |
54310121 | 1366 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1367 | (void)SvOK_off(TARG); |
1368 | PUSHTARG; | |
1369 | } | |
1370 | RETURN; | |
1371 | } | |
bbce6d69 | 1372 | /* This should not be marked tainted if the fp is marked clean */ |
1373 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1374 | TAINT; | |
1375 | SvTAINTED_on(sv); | |
1376 | } | |
a0d0e21e | 1377 | IoLINES(io)++; |
71be2cbc | 1378 | SvSETMAGIC(sv); |
a0d0e21e | 1379 | XPUSHs(sv); |
a0d0e21e LW |
1380 | if (type == OP_GLOB) { |
1381 | char *tmps; | |
1382 | ||
3280af22 | 1383 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1384 | tmps = SvEND(sv) - 1; |
3280af22 | 1385 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1386 | *tmps = '\0'; |
1387 | SvCUR(sv)--; | |
1388 | } | |
1389 | } | |
a0d0e21e LW |
1390 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1391 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1392 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1393 | break; | |
43384a1a | 1394 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1395 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1396 | continue; | |
1397 | } | |
1398 | } | |
54310121 | 1399 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1400 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1401 | SvLEN_set(sv, SvCUR(sv)+1); | |
1402 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1403 | } | |
1404 | sv = sv_2mortal(NEWSV(58, 80)); | |
1405 | continue; | |
1406 | } | |
54310121 | 1407 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1408 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1409 | if (SvCUR(sv) < 60) | |
1410 | SvLEN_set(sv, 80); | |
1411 | else | |
1412 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1413 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1414 | } | |
1415 | RETURN; | |
1416 | } | |
1417 | } | |
1418 | ||
1419 | PP(pp_enter) | |
1420 | { | |
4e35701f | 1421 | djSP; |
c09156bb | 1422 | register PERL_CONTEXT *cx; |
533c011a | 1423 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1424 | |
54310121 | 1425 | if (gimme == -1) { |
1426 | if (cxstack_ix >= 0) | |
1427 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1428 | else | |
1429 | gimme = G_SCALAR; | |
1430 | } | |
a0d0e21e LW |
1431 | |
1432 | ENTER; | |
1433 | ||
1434 | SAVETMPS; | |
924508f0 | 1435 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1436 | |
1437 | RETURN; | |
1438 | } | |
1439 | ||
1440 | PP(pp_helem) | |
1441 | { | |
4e35701f | 1442 | djSP; |
760ac839 | 1443 | HE* he; |
ae77835f | 1444 | SV **svp; |
a0d0e21e | 1445 | SV *keysv = POPs; |
a0d0e21e | 1446 | HV *hv = (HV*)POPs; |
533c011a NIS |
1447 | U32 lval = PL_op->op_flags & OPf_MOD; |
1448 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1449 | SV *sv; |
a0d0e21e | 1450 | |
ae77835f MB |
1451 | if (SvTYPE(hv) == SVt_PVHV) { |
1452 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1453 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1454 | } |
1455 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 SM |
1456 | if (PL_op->op_private & OPpLVAL_INTRO) |
1457 | DIE("Can't localize pseudo-hash element"); | |
97fcbf96 | 1458 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1459 | } |
c750a3ec | 1460 | else { |
a0d0e21e | 1461 | RETPUSHUNDEF; |
c750a3ec | 1462 | } |
a0d0e21e | 1463 | if (lval) { |
3280af22 | 1464 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1465 | SV* lv; |
1466 | SV* key2; | |
2d8e6c8d GS |
1467 | if (!defer) { |
1468 | STRLEN n_a; | |
1469 | DIE(PL_no_helem, SvPV(keysv, n_a)); | |
1470 | } | |
68dc0745 | 1471 | lv = sv_newmortal(); |
1472 | sv_upgrade(lv, SVt_PVLV); | |
1473 | LvTYPE(lv) = 'y'; | |
1474 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1475 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1476 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1477 | LvTARGLEN(lv) = 1; | |
1478 | PUSHs(lv); | |
1479 | RETURN; | |
1480 | } | |
533c011a | 1481 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1482 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1483 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1484 | else |
161b7d16 | 1485 | save_helem(hv, keysv, svp); |
5f05dabc | 1486 | } |
533c011a NIS |
1487 | else if (PL_op->op_private & OPpDEREF) |
1488 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1489 | } |
3280af22 | 1490 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1491 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1492 | * Pushing the magical RHS on to the stack is useless, since | |
1493 | * that magic is soon destined to be misled by the local(), | |
1494 | * and thus the later pp_sassign() will fail to mg_get() the | |
1495 | * old value. This should also cure problems with delayed | |
1496 | * mg_get()s. GSAR 98-07-03 */ | |
1497 | if (!lval && SvGMAGICAL(sv)) | |
1498 | sv = sv_mortalcopy(sv); | |
1499 | PUSHs(sv); | |
a0d0e21e LW |
1500 | RETURN; |
1501 | } | |
1502 | ||
1503 | PP(pp_leave) | |
1504 | { | |
4e35701f | 1505 | djSP; |
c09156bb | 1506 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1507 | register SV **mark; |
1508 | SV **newsp; | |
1509 | PMOP *newpm; | |
1510 | I32 gimme; | |
1511 | ||
533c011a | 1512 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1513 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1514 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1515 | } |
1516 | ||
1517 | POPBLOCK(cx,newpm); | |
1518 | ||
533c011a | 1519 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1520 | if (gimme == -1) { |
1521 | if (cxstack_ix >= 0) | |
1522 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1523 | else | |
1524 | gimme = G_SCALAR; | |
1525 | } | |
a0d0e21e | 1526 | |
a1f49e72 | 1527 | TAINT_NOT; |
54310121 | 1528 | if (gimme == G_VOID) |
1529 | SP = newsp; | |
1530 | else if (gimme == G_SCALAR) { | |
1531 | MARK = newsp + 1; | |
1532 | if (MARK <= SP) | |
1533 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1534 | *MARK = TOPs; | |
1535 | else | |
1536 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1537 | else { |
54310121 | 1538 | MEXTEND(mark,0); |
3280af22 | 1539 | *MARK = &PL_sv_undef; |
a0d0e21e | 1540 | } |
54310121 | 1541 | SP = MARK; |
a0d0e21e | 1542 | } |
54310121 | 1543 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1544 | /* in case LEAVE wipes old return values */ |
1545 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1546 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1547 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1548 | TAINT_NOT; /* Each item is independent */ |
1549 | } | |
1550 | } | |
a0d0e21e | 1551 | } |
3280af22 | 1552 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1553 | |
1554 | LEAVE; | |
1555 | ||
1556 | RETURN; | |
1557 | } | |
1558 | ||
1559 | PP(pp_iter) | |
1560 | { | |
4e35701f | 1561 | djSP; |
c09156bb | 1562 | register PERL_CONTEXT *cx; |
5f05dabc | 1563 | SV* sv; |
4633a7c4 | 1564 | AV* av; |
a0d0e21e | 1565 | |
924508f0 | 1566 | EXTEND(SP, 1); |
a0d0e21e | 1567 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1568 | if (CxTYPE(cx) != CXt_LOOP) |
a0d0e21e LW |
1569 | DIE("panic: pp_iter"); |
1570 | ||
4633a7c4 | 1571 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1572 | if (SvTYPE(av) != SVt_PVAV) { |
1573 | /* iterate ($min .. $max) */ | |
1574 | if (cx->blk_loop.iterlval) { | |
1575 | /* string increment */ | |
1576 | register SV* cur = cx->blk_loop.iterlval; | |
1577 | STRLEN maxlen; | |
1578 | char *max = SvPV((SV*)av, maxlen); | |
1579 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1580 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1581 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1582 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1583 | { | |
eaa5c2d6 GA |
1584 | /* safe to reuse old SV */ |
1585 | sv_setsv(*cx->blk_loop.itervar, cur); | |
1586 | } | |
1587 | else | |
1588 | #endif | |
1589 | { | |
1590 | /* we need a fresh SV every time so that loop body sees a | |
1591 | * completely new SV for closures/references to work as | |
1592 | * they used to */ | |
1593 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1594 | *cx->blk_loop.itervar = newSVsv(cur); | |
1595 | } | |
89ea2908 GA |
1596 | if (strEQ(SvPVX(cur), max)) |
1597 | sv_setiv(cur, 0); /* terminate next time */ | |
1598 | else | |
1599 | sv_inc(cur); | |
1600 | RETPUSHYES; | |
1601 | } | |
1602 | RETPUSHNO; | |
1603 | } | |
1604 | /* integer increment */ | |
1605 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1606 | RETPUSHNO; | |
7f61b687 | 1607 | |
eaa5c2d6 | 1608 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1609 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1610 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1611 | { | |
eaa5c2d6 GA |
1612 | /* safe to reuse old SV */ |
1613 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); | |
1614 | } | |
1615 | else | |
1616 | #endif | |
1617 | { | |
1618 | /* we need a fresh SV every time so that loop body sees a | |
1619 | * completely new SV for closures/references to work as they | |
1620 | * used to */ | |
1621 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1622 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); | |
1623 | } | |
89ea2908 GA |
1624 | RETPUSHYES; |
1625 | } | |
1626 | ||
1627 | /* iterate array */ | |
3280af22 | 1628 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1629 | RETPUSHNO; |
a0d0e21e | 1630 | |
7a4c00b4 | 1631 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1632 | |
93965878 NIS |
1633 | if (sv = (SvMAGICAL(av)) |
1634 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1635 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1636 | SvTEMP_off(sv); |
a0d0e21e | 1637 | else |
3280af22 NIS |
1638 | sv = &PL_sv_undef; |
1639 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1640 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1641 | if (lv && SvREFCNT(lv) > 1) { |
1642 | SvREFCNT_dec(lv); | |
1643 | lv = Nullsv; | |
1644 | } | |
5f05dabc | 1645 | if (lv) |
1646 | SvREFCNT_dec(LvTARG(lv)); | |
1647 | else { | |
68dc0745 | 1648 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1649 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1650 | LvTYPE(lv) = 'y'; |
68dc0745 | 1651 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1652 | } |
1653 | LvTARG(lv) = SvREFCNT_inc(av); | |
1654 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1655 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1656 | sv = (SV*)lv; |
1657 | } | |
a0d0e21e | 1658 | |
7a4c00b4 | 1659 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1660 | RETPUSHYES; |
1661 | } | |
1662 | ||
1663 | PP(pp_subst) | |
1664 | { | |
4e35701f | 1665 | djSP; dTARG; |
a0d0e21e LW |
1666 | register PMOP *pm = cPMOP; |
1667 | PMOP *rpm = pm; | |
1668 | register SV *dstr; | |
1669 | register char *s; | |
1670 | char *strend; | |
1671 | register char *m; | |
1672 | char *c; | |
1673 | register char *d; | |
1674 | STRLEN clen; | |
1675 | I32 iters = 0; | |
1676 | I32 maxiters; | |
1677 | register I32 i; | |
1678 | bool once; | |
71be2cbc | 1679 | bool rxtainted; |
a0d0e21e | 1680 | char *orig; |
22e551b9 | 1681 | I32 r_flags; |
d9f97599 | 1682 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1683 | STRLEN len; |
1684 | int force_on_match = 0; | |
3280af22 | 1685 | I32 oldsave = PL_savestack_ix; |
c277df42 | 1686 | I32 update_minmatch = 1; |
a0d0e21e | 1687 | |
5cd24f17 | 1688 | /* known replacement string? */ |
1689 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1690 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1691 | TARG = POPs; |
1692 | else { | |
54b9620d | 1693 | TARG = DEFSV; |
a0d0e21e | 1694 | EXTEND(SP,1); |
8ec5e241 | 1695 | } |
68dc0745 | 1696 | if (SvREADONLY(TARG) |
1697 | || (SvTYPE(TARG) > SVt_PVLV | |
1698 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
22c35a8c | 1699 | croak(PL_no_modify); |
8ec5e241 NIS |
1700 | PUTBACK; |
1701 | ||
a0d0e21e | 1702 | s = SvPV(TARG, len); |
68dc0745 | 1703 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1704 | force_on_match = 1; |
b3eb6a9b | 1705 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1706 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1707 | if (PL_tainted) | |
b3eb6a9b | 1708 | rxtainted |= 2; |
9212bbba | 1709 | TAINT_NOT; |
a0d0e21e LW |
1710 | |
1711 | force_it: | |
1712 | if (!pm || !s) | |
1713 | DIE("panic: do_subst"); | |
1714 | ||
1715 | strend = s + len; | |
2beec16e IZ |
1716 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1717 | position, once with zero-length, | |
1718 | second time with non-zero. */ | |
a0d0e21e | 1719 | |
3280af22 NIS |
1720 | if (!rx->prelen && PL_curpm) { |
1721 | pm = PL_curpm; | |
d9f97599 | 1722 | rx = pm->op_pmregexp; |
a0d0e21e | 1723 | } |
22e551b9 | 1724 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1725 | ? REXEC_COPY_STR : 0; |
22e551b9 IZ |
1726 | if (SvSCREAM(TARG) && rx->check_substr |
1727 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1728 | && SvVALID(rx->check_substr)) | |
1729 | r_flags |= REXEC_SCREAM; | |
a0d0e21e | 1730 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1731 | SAVEINT(PL_multiline); |
1732 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1733 | } |
1734 | orig = m = s; | |
d9f97599 GS |
1735 | if (rx->check_substr) { |
1736 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
22e551b9 | 1737 | if (r_flags & REXEC_SCREAM) { |
c277df42 | 1738 | I32 p = -1; |
a0ed51b3 | 1739 | char *b; |
c277df42 | 1740 | |
3280af22 | 1741 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 1742 | goto nope; |
a0ed51b3 | 1743 | |
dfe13c55 | 1744 | b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 | 1745 | if (!(s = screaminstr(TARG, rx->check_substr, b - s, 0, &p, 0))) |
a0d0e21e LW |
1746 | goto nope; |
1747 | } | |
a0ed51b3 | 1748 | else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min), |
c277df42 | 1749 | (unsigned char*)strend, |
cf93c79d IZ |
1750 | rx->check_substr, |
1751 | PL_multiline ? FBMrf_MULTILINE : 0))) | |
a0d0e21e | 1752 | goto nope; |
d9f97599 GS |
1753 | if (s && rx->check_offset_max < s - m) { |
1754 | ++BmUSEFUL(rx->check_substr); | |
dfe13c55 | 1755 | s = (char*)HOP((U8*)s, -rx->check_offset_max); |
a0d0e21e LW |
1756 | } |
1757 | else | |
1758 | s = m; | |
1759 | } | |
c277df42 IZ |
1760 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1761 | beginning of match, and the match is anchored at s. */ | |
3280af22 | 1762 | else if (!PL_multiline) { /* Anchored at beginning of string. */ |
c277df42 | 1763 | I32 slen; |
dfe13c55 | 1764 | char *b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 | 1765 | if (*SvPVX(rx->check_substr) != *b |
d9f97599 | 1766 | || ((slen = SvCUR(rx->check_substr)) > 1 |
a0ed51b3 | 1767 | && memNE(SvPVX(rx->check_substr), b, slen))) |
bbce6d69 | 1768 | goto nope; |
a0d0e21e | 1769 | } |
a0ed51b3 | 1770 | if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0 |
d9f97599 GS |
1771 | && rx->check_substr == rx->float_substr) { |
1772 | SvREFCNT_dec(rx->check_substr); | |
1773 | rx->check_substr = Nullsv; /* opt is being useless */ | |
1774 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
1775 | } |
1776 | } | |
71be2cbc | 1777 | |
1778 | /* only replace once? */ | |
a0d0e21e | 1779 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1780 | |
1781 | /* known replacement string? */ | |
5cd24f17 | 1782 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1783 | |
1784 | /* can do inplace substitution? */ | |
22e551b9 | 1785 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1786 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
22e551b9 | 1787 | if (!CALLREGEXEC(rx, s, strend, orig, 0, TARG, NULL, r_flags)) { |
8ec5e241 | 1788 | SPAGAIN; |
3280af22 | 1789 | PUSHs(&PL_sv_no); |
71be2cbc | 1790 | LEAVE_SCOPE(oldsave); |
1791 | RETURN; | |
1792 | } | |
1793 | if (force_on_match) { | |
1794 | force_on_match = 0; | |
1795 | s = SvPV_force(TARG, len); | |
1796 | goto force_it; | |
1797 | } | |
71be2cbc | 1798 | d = s; |
3280af22 | 1799 | PL_curpm = pm; |
71be2cbc | 1800 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1801 | if (once) { | |
48c036b1 | 1802 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1803 | m = orig + rx->startp[0]; |
1804 | d = orig + rx->endp[0]; | |
71be2cbc | 1805 | s = orig; |
1806 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1807 | if (clen) { | |
1808 | Copy(c, m, clen, char); | |
1809 | m += clen; | |
a0d0e21e | 1810 | } |
71be2cbc | 1811 | i = strend - d; |
1812 | if (i > 0) { | |
1813 | Move(d, m, i, char); | |
1814 | m += i; | |
a0d0e21e | 1815 | } |
71be2cbc | 1816 | *m = '\0'; |
1817 | SvCUR_set(TARG, m - s); | |
1818 | } | |
1819 | /*SUPPRESS 560*/ | |
1820 | else if (i = m - s) { /* faster from front */ | |
1821 | d -= clen; | |
1822 | m = d; | |
1823 | sv_chop(TARG, d-i); | |
1824 | s += i; | |
1825 | while (i--) | |
1826 | *--d = *--s; | |
1827 | if (clen) | |
1828 | Copy(c, m, clen, char); | |
1829 | } | |
1830 | else if (clen) { | |
1831 | d -= clen; | |
1832 | sv_chop(TARG, d); | |
1833 | Copy(c, d, clen, char); | |
1834 | } | |
1835 | else { | |
1836 | sv_chop(TARG, d); | |
1837 | } | |
48c036b1 | 1838 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1839 | SPAGAIN; |
3280af22 | 1840 | PUSHs(&PL_sv_yes); |
71be2cbc | 1841 | } |
1842 | else { | |
71be2cbc | 1843 | do { |
1844 | if (iters++ > maxiters) | |
1845 | DIE("Substitution loop"); | |
d9f97599 | 1846 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1847 | m = rx->startp[0] + orig; |
71be2cbc | 1848 | /*SUPPRESS 560*/ |
1849 | if (i = m - s) { | |
1850 | if (s != d) | |
1851 | Move(s, d, i, char); | |
1852 | d += i; | |
a0d0e21e | 1853 | } |
71be2cbc | 1854 | if (clen) { |
1855 | Copy(c, d, clen, char); | |
1856 | d += clen; | |
1857 | } | |
cf93c79d | 1858 | s = rx->endp[0] + orig; |
15e52e56 | 1859 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
cf93c79d | 1860 | Nullsv, NULL, REXEC_NOT_FIRST)); /* don't match same null twice */ |
71be2cbc | 1861 | if (s != d) { |
1862 | i = strend - s; | |
1863 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1864 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1865 | } |
48c036b1 | 1866 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1867 | SPAGAIN; |
71be2cbc | 1868 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1869 | } |
71be2cbc | 1870 | (void)SvPOK_only(TARG); |
48c036b1 | 1871 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1872 | if (SvSMAGICAL(TARG)) { |
1873 | PUTBACK; | |
1874 | mg_set(TARG); | |
1875 | SPAGAIN; | |
1876 | } | |
9212bbba | 1877 | SvTAINT(TARG); |
71be2cbc | 1878 | LEAVE_SCOPE(oldsave); |
1879 | RETURN; | |
a0d0e21e | 1880 | } |
71be2cbc | 1881 | |
22e551b9 | 1882 | if (CALLREGEXEC(rx, s, strend, orig, 0, TARG, NULL, r_flags)) { |
a0d0e21e LW |
1883 | if (force_on_match) { |
1884 | force_on_match = 0; | |
1885 | s = SvPV_force(TARG, len); | |
1886 | goto force_it; | |
1887 | } | |
48c036b1 | 1888 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1889 | dstr = NEWSV(25, len); |
a0d0e21e | 1890 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1891 | PL_curpm = pm; |
a0d0e21e | 1892 | if (!c) { |
c09156bb | 1893 | register PERL_CONTEXT *cx; |
8ec5e241 | 1894 | SPAGAIN; |
a0d0e21e LW |
1895 | PUSHSUBST(cx); |
1896 | RETURNOP(cPMOP->op_pmreplroot); | |
1897 | } | |
cf93c79d | 1898 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1899 | do { |
1900 | if (iters++ > maxiters) | |
1901 | DIE("Substitution loop"); | |
d9f97599 | 1902 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1903 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
1904 | m = s; |
1905 | s = orig; | |
cf93c79d | 1906 | orig = rx->subbeg; |
a0d0e21e LW |
1907 | s = orig + (m - s); |
1908 | strend = s + (strend - m); | |
1909 | } | |
cf93c79d | 1910 | m = rx->startp[0] + orig; |
a0d0e21e | 1911 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 1912 | s = rx->endp[0] + orig; |
a0d0e21e LW |
1913 | if (clen) |
1914 | sv_catpvn(dstr, c, clen); | |
1915 | if (once) | |
1916 | break; | |
ad94a511 | 1917 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1918 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1919 | |
4633a7c4 | 1920 | (void)SvOOK_off(TARG); |
cb0b1708 | 1921 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1922 | SvPVX(TARG) = SvPVX(dstr); |
1923 | SvCUR_set(TARG, SvCUR(dstr)); | |
1924 | SvLEN_set(TARG, SvLEN(dstr)); | |
1925 | SvPVX(dstr) = 0; | |
1926 | sv_free(dstr); | |
1927 | ||
48c036b1 | 1928 | TAINT_IF(rxtainted & 1); |
f878fbec | 1929 | SPAGAIN; |
48c036b1 GS |
1930 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1931 | ||
a0d0e21e | 1932 | (void)SvPOK_only(TARG); |
48c036b1 | 1933 | TAINT_IF(rxtainted); |
a0d0e21e | 1934 | SvSETMAGIC(TARG); |
9212bbba | 1935 | SvTAINT(TARG); |
4633a7c4 | 1936 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1937 | RETURN; |
1938 | } | |
5cd24f17 | 1939 | goto ret_no; |
a0d0e21e LW |
1940 | |
1941 | nope: | |
d9f97599 | 1942 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1943 | |
8ec5e241 NIS |
1944 | ret_no: |
1945 | SPAGAIN; | |
3280af22 | 1946 | PUSHs(&PL_sv_no); |
4633a7c4 | 1947 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1948 | RETURN; |
1949 | } | |
1950 | ||
1951 | PP(pp_grepwhile) | |
1952 | { | |
4e35701f | 1953 | djSP; |
a0d0e21e LW |
1954 | |
1955 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1956 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1957 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1958 | LEAVE; /* exit inner scope */ |
1959 | ||
1960 | /* All done yet? */ | |
3280af22 | 1961 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1962 | I32 items; |
54310121 | 1963 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1964 | |
1965 | LEAVE; /* exit outer scope */ | |
1966 | (void)POPMARK; /* pop src */ | |
3280af22 | 1967 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1968 | (void)POPMARK; /* pop dst */ |
3280af22 | 1969 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1970 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1971 | dTARGET; |
1972 | XPUSHi(items); | |
a0d0e21e | 1973 | } |
54310121 | 1974 | else if (gimme == G_ARRAY) |
1975 | SP += items; | |
a0d0e21e LW |
1976 | RETURN; |
1977 | } | |
1978 | else { | |
1979 | SV *src; | |
1980 | ||
1981 | ENTER; /* enter inner scope */ | |
3280af22 | 1982 | SAVESPTR(PL_curpm); |
a0d0e21e | 1983 | |
3280af22 | 1984 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1985 | SvTEMP_off(src); |
54b9620d | 1986 | DEFSV = src; |
a0d0e21e LW |
1987 | |
1988 | RETURNOP(cLOGOP->op_other); | |
1989 | } | |
1990 | } | |
1991 | ||
1992 | PP(pp_leavesub) | |
1993 | { | |
4e35701f | 1994 | djSP; |
a0d0e21e LW |
1995 | SV **mark; |
1996 | SV **newsp; | |
1997 | PMOP *newpm; | |
1998 | I32 gimme; | |
c09156bb | 1999 | register PERL_CONTEXT *cx; |
f86702cc | 2000 | struct block_sub cxsub; |
a0d0e21e LW |
2001 | |
2002 | POPBLOCK(cx,newpm); | |
f86702cc | 2003 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
2004 | ||
a1f49e72 | 2005 | TAINT_NOT; |
a0d0e21e LW |
2006 | if (gimme == G_SCALAR) { |
2007 | MARK = newsp + 1; | |
a29cdaf0 IZ |
2008 | if (MARK <= SP) { |
2009 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { | |
2010 | if (SvTEMP(TOPs)) { | |
2011 | *MARK = SvREFCNT_inc(TOPs); | |
2012 | FREETMPS; | |
2013 | sv_2mortal(*MARK); | |
2014 | } else { | |
2015 | FREETMPS; | |
2016 | *MARK = sv_mortalcopy(TOPs); | |
2017 | } | |
2018 | } else | |
2019 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2020 | } else { | |
f86702cc | 2021 | MEXTEND(MARK, 0); |
3280af22 | 2022 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
2023 | } |
2024 | SP = MARK; | |
2025 | } | |
54310121 | 2026 | else if (gimme == G_ARRAY) { |
f86702cc | 2027 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 2028 | if (!SvTEMP(*MARK)) { |
f86702cc | 2029 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
2030 | TAINT_NOT; /* Each item is independent */ |
2031 | } | |
f86702cc | 2032 | } |
a0d0e21e | 2033 | } |
f86702cc | 2034 | PUTBACK; |
2035 | ||
2036 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
3280af22 | 2037 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
2038 | |
2039 | LEAVE; | |
a0d0e21e LW |
2040 | return pop_return(); |
2041 | } | |
2042 | ||
76e3520e | 2043 | STATIC CV * |
864dbfa3 | 2044 | get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 MB |
2045 | { |
2046 | dTHR; | |
3280af22 | 2047 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2048 | |
2049 | if (!PERLDB_SUB_NN) { | |
2050 | GV *gv = CvGV(cv); | |
2051 | ||
2052 | save_item(dbsv); | |
2053 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
2054 | || strEQ(GvNAME(gv), "END") | |
2055 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
2056 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2057 | && (gv = (GV*)*svp) ))) { | |
2058 | /* Use GV from the stack as a fallback. */ | |
2059 | /* GV is potentially non-unique, or contain different CV. */ | |
2060 | sv_setsv(dbsv, newRV((SV*)cv)); | |
2061 | } | |
2062 | else { | |
2063 | gv_efullname3(dbsv, gv, Nullch); | |
2064 | } | |
3de9ffa1 MB |
2065 | } |
2066 | else { | |
491527d0 GS |
2067 | SvUPGRADE(dbsv, SVt_PVIV); |
2068 | SvIOK_on(dbsv); | |
2069 | SAVEIV(SvIVX(dbsv)); | |
2070 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ | |
3de9ffa1 | 2071 | } |
491527d0 | 2072 | |
3de9ffa1 | 2073 | if (CvXSUB(cv)) |
3280af22 NIS |
2074 | PL_curcopdb = PL_curcop; |
2075 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2076 | return cv; |
2077 | } | |
2078 | ||
a0d0e21e LW |
2079 | PP(pp_entersub) |
2080 | { | |
4e35701f | 2081 | djSP; dPOPss; |
a0d0e21e LW |
2082 | GV *gv; |
2083 | HV *stash; | |
2084 | register CV *cv; | |
c09156bb | 2085 | register PERL_CONTEXT *cx; |
5d94fbed | 2086 | I32 gimme; |
533c011a | 2087 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2088 | |
2089 | if (!sv) | |
2090 | DIE("Not a CODE reference"); | |
2091 | switch (SvTYPE(sv)) { | |
2092 | default: | |
2093 | if (!SvROK(sv)) { | |
748a9306 | 2094 | char *sym; |
2d8e6c8d | 2095 | STRLEN n_a; |
748a9306 | 2096 | |
3280af22 | 2097 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2098 | if (hasargs) |
3280af22 | 2099 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2100 | RETURN; |
fb73857a | 2101 | } |
15ff848f CS |
2102 | if (SvGMAGICAL(sv)) { |
2103 | mg_get(sv); | |
2104 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2105 | } | |
2106 | else | |
2d8e6c8d | 2107 | sym = SvPV(sv, n_a); |
15ff848f | 2108 | if (!sym) |
22c35a8c | 2109 | DIE(PL_no_usym, "a subroutine"); |
533c011a | 2110 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c | 2111 | DIE(PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2112 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2113 | break; |
2114 | } | |
f5284f61 IZ |
2115 | { |
2116 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2117 | tryAMAGICunDEREF(to_cv); | |
2118 | } | |
a0d0e21e LW |
2119 | cv = (CV*)SvRV(sv); |
2120 | if (SvTYPE(cv) == SVt_PVCV) | |
2121 | break; | |
2122 | /* FALL THROUGH */ | |
2123 | case SVt_PVHV: | |
2124 | case SVt_PVAV: | |
2125 | DIE("Not a CODE reference"); | |
2126 | case SVt_PVCV: | |
2127 | cv = (CV*)sv; | |
2128 | break; | |
2129 | case SVt_PVGV: | |
8ebc5c01 | 2130 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2131 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2132 | if (!cv) { | |
2133 | ENTER; | |
2134 | SAVETMPS; | |
2135 | goto try_autoload; | |
2136 | } | |
2137 | break; | |
a0d0e21e LW |
2138 | } |
2139 | ||
2140 | ENTER; | |
2141 | SAVETMPS; | |
2142 | ||
2143 | retry: | |
a0d0e21e | 2144 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2145 | GV* autogv; |
22239a37 | 2146 | SV* sub_name; |
44a8e56a | 2147 | |
2148 | /* anonymous or undef'd function leaves us no recourse */ | |
2149 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
2150 | DIE("Undefined subroutine called"); | |
67caa1fe | 2151 | |
44a8e56a | 2152 | /* autoloaded stub? */ |
2153 | if (cv != GvCV(gv)) { | |
2154 | cv = GvCV(gv); | |
a0d0e21e | 2155 | } |
44a8e56a | 2156 | /* should call AUTOLOAD now? */ |
67caa1fe | 2157 | else { |
f6ec51f7 GS |
2158 | try_autoload: |
2159 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2160 | FALSE))) | |
2161 | { | |
2162 | cv = GvCV(autogv); | |
2163 | } | |
2164 | /* sorry */ | |
2165 | else { | |
2166 | sub_name = sv_newmortal(); | |
2167 | gv_efullname3(sub_name, gv, Nullch); | |
2168 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
2169 | } | |
67caa1fe GS |
2170 | } |
2171 | if (!cv) | |
2172 | DIE("Not a CODE reference"); | |
2173 | goto retry; | |
a0d0e21e LW |
2174 | } |
2175 | ||
54310121 | 2176 | gimme = GIMME_V; |
67caa1fe | 2177 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2178 | cv = get_db_sub(&sv, cv); |
67caa1fe GS |
2179 | if (!cv) |
2180 | DIE("No DBsub routine"); | |
2181 | } | |
a0d0e21e | 2182 | |
11343788 | 2183 | #ifdef USE_THREADS |
3de9ffa1 MB |
2184 | /* |
2185 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2186 | * If so, we gain a lock on the CV, the first argument or the |
2187 | * stash (for static methods), as appropriate. This has to be | |
2188 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2189 | * reschedule by returning a new op. | |
3de9ffa1 | 2190 | */ |
11343788 | 2191 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2192 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2193 | MAGIC *mg; | |
2194 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2195 | if (SP > PL_stack_base + TOPMARK) |
2196 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2197 | else { |
13e08037 GS |
2198 | AV *av = (AV*)PL_curpad[0]; |
2199 | if (hasargs || !av || AvFILLp(av) < 0 | |
2200 | || !(sv = AvARRAY(av)[0])) | |
2201 | { | |
2202 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2203 | croak("no argument for locked method call"); | |
2204 | } | |
77a005ab MB |
2205 | } |
2206 | if (SvROK(sv)) | |
2207 | sv = SvRV(sv); | |
458fb581 MB |
2208 | else { |
2209 | STRLEN len; | |
2210 | char *stashname = SvPV(sv, len); | |
2211 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2212 | } | |
77a005ab MB |
2213 | } |
2214 | else { | |
2215 | sv = (SV*)cv; | |
2216 | } | |
2217 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2218 | mg = condpair_magic(sv); | |
2219 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2220 | if (MgOWNER(mg) == thr) | |
2221 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2222 | else { | |
2223 | while (MgOWNER(mg)) | |
2224 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2225 | MgOWNER(mg) = thr; | |
8b73bbec | 2226 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 | 2227 | thr, sv);) |
77a005ab MB |
2228 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2229 | save_destructor(unlock_condpair, sv); | |
11343788 | 2230 | } |
77a005ab | 2231 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2232 | } |
3de9ffa1 MB |
2233 | /* |
2234 | * Now we have permission to enter the sub, we must distinguish | |
2235 | * four cases. (0) It's an XSUB (in which case we don't care | |
2236 | * about ownership); (1) it's ours already (and we're recursing); | |
2237 | * (2) it's free (but we may already be using a cached clone); | |
2238 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2239 | * Case (2) means we look for a clone--if we have one, use it | |
2240 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2241 | * clone (for non-XSUBs) and have to create one if we don't | |
2242 | * already have one. | |
2243 | * Why look for a clone in case (2) when we could just grab | |
2244 | * ownership of cv straight away? Well, we could be recursing, | |
2245 | * i.e. we originally tried to enter cv while another thread | |
2246 | * owned it (hence we used a clone) but it has been freed up | |
2247 | * and we're now recursing into it. It may or may not be "better" | |
2248 | * to use the clone but at least CvDEPTH can be trusted. | |
2249 | */ | |
2250 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2251 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2252 | else { |
3de9ffa1 MB |
2253 | /* Case (2) or (3) */ |
2254 | SV **svp; | |
2255 | ||
11343788 | 2256 | /* |
3de9ffa1 MB |
2257 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2258 | * do the hv_fetch? We might find someone has pinched it | |
2259 | * when we look again, in which case we would be in case | |
2260 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2261 | * that we released the mutex more quickly make up for this? | |
2262 | */ | |
b099ddc0 | 2263 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2264 | { |
3de9ffa1 | 2265 | /* We already have a clone to use */ |
11343788 | 2266 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2267 | cv = *(CV**)svp; |
8b73bbec | 2268 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2269 | "entersub: %p already has clone %p:%s\n", |
2270 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2271 | CvOWNER(cv) = thr; |
2272 | SvREFCNT_inc(cv); | |
2273 | if (CvDEPTH(cv) == 0) | |
2274 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
2275 | } | |
11343788 | 2276 | else { |
3de9ffa1 MB |
2277 | /* (2) => grab ownership of cv. (3) => make clone */ |
2278 | if (!CvOWNER(cv)) { | |
2279 | CvOWNER(cv) = thr; | |
2280 | SvREFCNT_inc(cv); | |
11343788 | 2281 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec | 2282 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2283 | "entersub: %p grabbing %p:%s in stash %s\n", |
2284 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
2285 | HvNAME(CvSTASH(cv)) : "(none)")); |
2286 | } else { | |
2287 | /* Make a new clone. */ | |
2288 | CV *clonecv; | |
2289 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2290 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
8b73bbec | 2291 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2292 | "entersub: %p cloning %p:%s\n", |
2293 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2294 | /* |
2295 | * We're creating a new clone so there's no race | |
2296 | * between the original MUTEX_UNLOCK and the | |
2297 | * SvREFCNT_inc since no one will be trying to undef | |
2298 | * it out from underneath us. At least, I don't think | |
2299 | * there's a race... | |
2300 | */ | |
2301 | clonecv = cv_clone(cv); | |
2302 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2303 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2304 | CvOWNER(clonecv) = thr; |
2305 | cv = clonecv; | |
11343788 | 2306 | SvREFCNT_inc(cv); |
11343788 | 2307 | } |
8b73bbec | 2308 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 MB |
2309 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2310 | CvDEPTH(cv));); | |
2311 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2312 | } |
3de9ffa1 | 2313 | } |
11343788 MB |
2314 | #endif /* USE_THREADS */ |
2315 | ||
a0d0e21e | 2316 | if (CvXSUB(cv)) { |
67caa1fe | 2317 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2318 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2319 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2320 | dMARK; |
2321 | register I32 items = SP - MARK; | |
67955e0c | 2322 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2323 | while (SP > mark) { |
2324 | SP[1] = SP[0]; | |
2325 | SP--; | |
a0d0e21e | 2326 | } |
3280af22 | 2327 | PL_stack_sp = mark + 1; |
20ce7b12 | 2328 | fp3 = (I32(*)(int,int,int)))CvXSUB(cv; |
ecfc5424 | 2329 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2330 | MARK - PL_stack_base + 1, |
ecfc5424 | 2331 | items); |
3280af22 | 2332 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2333 | } |
67caa1fe GS |
2334 | else |
2335 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2336 | { | |
748a9306 LW |
2337 | I32 markix = TOPMARK; |
2338 | ||
a0d0e21e | 2339 | PUTBACK; |
67955e0c | 2340 | |
2341 | if (!hasargs) { | |
2342 | /* Need to copy @_ to stack. Alternative may be to | |
2343 | * switch stack to @_, and copy return values | |
2344 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2345 | AV* av; |
2346 | I32 items; | |
2347 | #ifdef USE_THREADS | |
533c011a | 2348 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2349 | #else |
3280af22 | 2350 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2351 | #endif /* USE_THREADS */ |
93965878 | 2352 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2353 | |
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; | |
67955e0c | 2359 | PUTBACK ; |
2360 | } | |
2361 | } | |
67caa1fe GS |
2362 | /* We assume first XSUB in &DB::sub is the called one. */ |
2363 | if (PL_curcopdb) { | |
3280af22 NIS |
2364 | SAVESPTR(PL_curcop); |
2365 | PL_curcop = PL_curcopdb; | |
2366 | PL_curcopdb = NULL; | |
67955e0c | 2367 | } |
2368 | /* Do we need to open block here? XXXX */ | |
1d583055 | 2369 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 LW |
2370 | |
2371 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2372 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2373 | if (markix > PL_stack_sp - PL_stack_base) | |
2374 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2375 | else |
3280af22 NIS |
2376 | *(PL_stack_base + markix) = *PL_stack_sp; |
2377 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2378 | } |
a0d0e21e LW |
2379 | } |
2380 | LEAVE; | |
2381 | return NORMAL; | |
2382 | } | |
2383 | else { | |
2384 | dMARK; | |
2385 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2386 | AV* padlist = CvPADLIST(cv); |
2387 | SV** svp = AvARRAY(padlist); | |
533c011a | 2388 | push_return(PL_op->op_next); |
a0d0e21e LW |
2389 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2390 | PUSHSUB(cx); | |
2391 | CvDEPTH(cv)++; | |
6b35e009 GS |
2392 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2393 | * that eval'' ops within this sub know the correct lexical space. | |
2394 | * Owing the speed considerations, we choose to search for the cv | |
2395 | * in doeval() instead. | |
2396 | */ | |
a0d0e21e LW |
2397 | if (CvDEPTH(cv) < 2) |
2398 | (void)SvREFCNT_inc(cv); | |
2399 | else { /* save temporaries on recursion? */ | |
93965878 | 2400 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2401 | AV *av; |
2402 | AV *newpad = newAV(); | |
4aa0a1f7 | 2403 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2404 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2405 | svp = AvARRAY(svp[0]); |
748a9306 | 2406 | for ( ;ix > 0; ix--) { |
3280af22 | 2407 | if (svp[ix] != &PL_sv_undef) { |
748a9306 | 2408 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2409 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2410 | || *name == '&') /* anonymous code? */ | |
2411 | { | |
2412 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2413 | } |
2414 | else { /* our own lexical */ | |
2415 | if (*name == '@') | |
2416 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2417 | else if (*name == '%') | |
2418 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2419 | else | |
2420 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2421 | SvPADMY_on(sv); | |
2422 | } | |
a0d0e21e LW |
2423 | } |
2424 | else { | |
748a9306 | 2425 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2426 | SvPADTMP_on(sv); |
2427 | } | |
2428 | } | |
2429 | av = newAV(); /* will be @_ */ | |
2430 | av_extend(av, 0); | |
2431 | av_store(newpad, 0, (SV*)av); | |
2432 | AvFLAGS(av) = AVf_REIFY; | |
2433 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2434 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2435 | svp = AvARRAY(padlist); |
2436 | } | |
2437 | } | |
6d4ff0d2 MB |
2438 | #ifdef USE_THREADS |
2439 | if (!hasargs) { | |
533c011a | 2440 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2441 | |
93965878 | 2442 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2443 | if (items) { |
2444 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2445 | EXTEND(SP, items); |
2446 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2447 | SP += items; | |
6d4ff0d2 MB |
2448 | PUTBACK ; |
2449 | } | |
2450 | } | |
2451 | #endif /* USE_THREADS */ | |
3280af22 NIS |
2452 | SAVESPTR(PL_curpad); |
2453 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
6d4ff0d2 MB |
2454 | #ifndef USE_THREADS |
2455 | if (hasargs) | |
2456 | #endif /* USE_THREADS */ | |
2457 | { | |
2458 | AV* av; | |
a0d0e21e LW |
2459 | SV** ary; |
2460 | ||
77a005ab | 2461 | #if 0 |
8b73bbec | 2462 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2463 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2464 | #endif |
3280af22 | 2465 | av = (AV*)PL_curpad[0]; |
a0d0e21e LW |
2466 | if (AvREAL(av)) { |
2467 | av_clear(av); | |
2468 | AvREAL_off(av); | |
2469 | } | |
6d4ff0d2 | 2470 | #ifndef USE_THREADS |
3280af22 NIS |
2471 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2472 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2473 | #endif /* USE_THREADS */ |
2474 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2475 | ++MARK; |
2476 | ||
2477 | if (items > AvMAX(av) + 1) { | |
2478 | ary = AvALLOC(av); | |
2479 | if (AvARRAY(av) != ary) { | |
2480 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2481 | SvPVX(av) = (char*)ary; | |
2482 | } | |
2483 | if (items > AvMAX(av) + 1) { | |
2484 | AvMAX(av) = items - 1; | |
2485 | Renew(ary,items,SV*); | |
2486 | AvALLOC(av) = ary; | |
2487 | SvPVX(av) = (char*)ary; | |
2488 | } | |
2489 | } | |
2490 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2491 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2492 | |
2493 | while (items--) { | |
2494 | if (*MARK) | |
2495 | SvTEMP_off(*MARK); | |
2496 | MARK++; | |
2497 | } | |
2498 | } | |
4a925ff6 GS |
2499 | /* warning must come *after* we fully set up the context |
2500 | * stuff so that __WARN__ handlers can safely dounwind() | |
2501 | * if they want to | |
2502 | */ | |
2503 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2504 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2505 | sub_crush_depth(cv); | |
77a005ab | 2506 | #if 0 |
8b73bbec | 2507 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2508 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2509 | #endif |
a0d0e21e LW |
2510 | RETURNOP(CvSTART(cv)); |
2511 | } | |
2512 | } | |
2513 | ||
44a8e56a | 2514 | void |
864dbfa3 | 2515 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2516 | { |
2517 | if (CvANON(cv)) | |
599cee73 | 2518 | warner(WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2519 | else { |
2520 | SV* tmpstr = sv_newmortal(); | |
2521 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
599cee73 PM |
2522 | warner(WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
2523 | SvPVX(tmpstr)); | |
44a8e56a | 2524 | } |
2525 | } | |
2526 | ||
a0d0e21e LW |
2527 | PP(pp_aelem) |
2528 | { | |
4e35701f | 2529 | djSP; |
a0d0e21e | 2530 | SV** svp; |
748a9306 | 2531 | I32 elem = POPi; |
68dc0745 | 2532 | AV* av = (AV*)POPs; |
533c011a NIS |
2533 | U32 lval = PL_op->op_flags & OPf_MOD; |
2534 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2535 | SV *sv; |
a0d0e21e | 2536 | |
748a9306 | 2537 | if (elem > 0) |
3280af22 | 2538 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2539 | if (SvTYPE(av) != SVt_PVAV) |
2540 | RETPUSHUNDEF; | |
68dc0745 | 2541 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2542 | if (lval) { |
3280af22 | 2543 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2544 | SV* lv; |
2545 | if (!defer) | |
22c35a8c | 2546 | DIE(PL_no_aelem, elem); |
68dc0745 | 2547 | lv = sv_newmortal(); |
2548 | sv_upgrade(lv, SVt_PVLV); | |
2549 | LvTYPE(lv) = 'y'; | |
2550 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2551 | LvTARG(lv) = SvREFCNT_inc(av); | |
2552 | LvTARGOFF(lv) = elem; | |
2553 | LvTARGLEN(lv) = 1; | |
2554 | PUSHs(lv); | |
2555 | RETURN; | |
2556 | } | |
533c011a | 2557 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2558 | save_aelem(av, elem, svp); |
533c011a NIS |
2559 | else if (PL_op->op_private & OPpDEREF) |
2560 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2561 | } |
3280af22 | 2562 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2563 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2564 | sv = sv_mortalcopy(sv); | |
2565 | PUSHs(sv); | |
a0d0e21e LW |
2566 | RETURN; |
2567 | } | |
2568 | ||
02a9e968 | 2569 | void |
864dbfa3 | 2570 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2571 | { |
2572 | if (SvGMAGICAL(sv)) | |
2573 | mg_get(sv); | |
2574 | if (!SvOK(sv)) { | |
2575 | if (SvREADONLY(sv)) | |
22c35a8c | 2576 | croak(PL_no_modify); |
5f05dabc | 2577 | if (SvTYPE(sv) < SVt_RV) |
2578 | sv_upgrade(sv, SVt_RV); | |
2579 | else if (SvTYPE(sv) >= SVt_PV) { | |
2580 | (void)SvOOK_off(sv); | |
2581 | Safefree(SvPVX(sv)); | |
2582 | SvLEN(sv) = SvCUR(sv) = 0; | |
2583 | } | |
68dc0745 | 2584 | switch (to_what) { |
5f05dabc | 2585 | case OPpDEREF_SV: |
8c52afec | 2586 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2587 | break; |
2588 | case OPpDEREF_AV: | |
2589 | SvRV(sv) = (SV*)newAV(); | |
2590 | break; | |
2591 | case OPpDEREF_HV: | |
2592 | SvRV(sv) = (SV*)newHV(); | |
2593 | break; | |
2594 | } | |
02a9e968 CS |
2595 | SvROK_on(sv); |
2596 | SvSETMAGIC(sv); | |
2597 | } | |
2598 | } | |
2599 | ||
a0d0e21e LW |
2600 | PP(pp_method) |
2601 | { | |
4e35701f | 2602 | djSP; |
a0d0e21e LW |
2603 | SV* sv; |
2604 | SV* ob; | |
2605 | GV* gv; | |
56304f61 CS |
2606 | HV* stash; |
2607 | char* name; | |
ac91690f CS |
2608 | char* packname; |
2609 | STRLEN packlen; | |
a0d0e21e | 2610 | |
fb73857a | 2611 | if (SvROK(TOPs)) { |
2612 | sv = SvRV(TOPs); | |
2613 | if (SvTYPE(sv) == SVt_PVCV) { | |
2614 | SETs(sv); | |
2615 | RETURN; | |
2616 | } | |
2617 | } | |
2618 | ||
2d8e6c8d | 2619 | name = SvPV(TOPs, packlen); |
3280af22 | 2620 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e | 2621 | |
16d20bd9 AD |
2622 | if (SvGMAGICAL(sv)) |
2623 | mg_get(sv); | |
a0d0e21e | 2624 | if (SvROK(sv)) |
16d20bd9 | 2625 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2626 | else { |
2627 | GV* iogv; | |
a0d0e21e | 2628 | |
56304f61 | 2629 | packname = Nullch; |
a0d0e21e | 2630 | if (!SvOK(sv) || |
56304f61 | 2631 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2632 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2633 | !(ob=(SV*)GvIO(iogv))) | |
2634 | { | |
834a4ddd LW |
2635 | if (!packname || |
2636 | ((*(U8*)packname >= 0xc0 && IN_UTF8) | |
b86a2fa7 | 2637 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2638 | : !isIDFIRST(*packname) |
2639 | )) | |
2640 | { | |
72b5445b GS |
2641 | DIE("Can't call method \"%s\" %s", name, |
2642 | SvOK(sv)? "without a package or object reference" | |
2643 | : "on an undefined value"); | |
834a4ddd | 2644 | } |
56304f61 | 2645 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2646 | goto fetch; |
a0d0e21e | 2647 | } |
3280af22 | 2648 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2649 | } |
2650 | ||
ac91690f | 2651 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2652 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2653 | |
56304f61 | 2654 | stash = SvSTASH(ob); |
a0d0e21e | 2655 | |
ac91690f | 2656 | fetch: |
ac91690f | 2657 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2658 | if (!gv) { |
2659 | char* leaf = name; | |
2660 | char* sep = Nullch; | |
2661 | char* p; | |
2662 | ||
2663 | for (p = name; *p; p++) { | |
2664 | if (*p == '\'') | |
2665 | sep = p, leaf = p + 1; | |
2666 | else if (*p == ':' && *(p + 1) == ':') | |
2667 | sep = p, leaf = p + 2; | |
2668 | } | |
2669 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
3280af22 | 2670 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 CS |
2671 | packlen = strlen(packname); |
2672 | } | |
2673 | else { | |
2674 | packname = name; | |
2675 | packlen = sep - name; | |
2676 | } | |
2677 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2678 | leaf, (int)packlen, packname); | |
2679 | } | |
8ebc5c01 | 2680 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2681 | RETURN; |
2682 | } | |
22239a37 | 2683 |