Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
3818b22b | 3 | * Copyright (c) 1991-2000, 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 | |
a0ed51b3 | 25 | |
a0d0e21e LW |
26 | /* Hot code. */ |
27 | ||
11343788 | 28 | #ifdef USE_THREADS |
51371543 | 29 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 MB |
30 | #endif /* USE_THREADS */ |
31 | ||
a0d0e21e LW |
32 | PP(pp_const) |
33 | { | |
4e35701f | 34 | djSP; |
1d7c1841 | 35 | XPUSHs(cSVOP_sv); |
a0d0e21e LW |
36 | RETURN; |
37 | } | |
38 | ||
39 | PP(pp_nextstate) | |
40 | { | |
533c011a | 41 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 42 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 43 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
44 | FREETMPS; |
45 | return NORMAL; | |
46 | } | |
47 | ||
48 | PP(pp_gvsv) | |
49 | { | |
4e35701f | 50 | djSP; |
924508f0 | 51 | EXTEND(SP,1); |
533c011a | 52 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 | 53 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e | 54 | else |
1d7c1841 | 55 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e LW |
56 | RETURN; |
57 | } | |
58 | ||
59 | PP(pp_null) | |
60 | { | |
61 | return NORMAL; | |
62 | } | |
63 | ||
7399586d HS |
64 | PP(pp_setstate) |
65 | { | |
66 | PL_curcop = (COP*)PL_op; | |
67 | return NORMAL; | |
68 | } | |
69 | ||
a0d0e21e LW |
70 | PP(pp_pushmark) |
71 | { | |
3280af22 | 72 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
73 | return NORMAL; |
74 | } | |
75 | ||
76 | PP(pp_stringify) | |
77 | { | |
4e35701f | 78 | djSP; dTARGET; |
a0d0e21e LW |
79 | STRLEN len; |
80 | char *s; | |
81 | s = SvPV(TOPs,len); | |
82 | sv_setpvn(TARG,s,len); | |
234a4bc6 GS |
83 | if (SvUTF8(TOPs) && !IN_BYTE) |
84 | SvUTF8_on(TARG); | |
a0d0e21e LW |
85 | SETTARG; |
86 | RETURN; | |
87 | } | |
88 | ||
89 | PP(pp_gv) | |
90 | { | |
4e35701f | 91 | djSP; |
1d7c1841 | 92 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e LW |
93 | RETURN; |
94 | } | |
95 | ||
96 | PP(pp_and) | |
97 | { | |
4e35701f | 98 | djSP; |
a0d0e21e LW |
99 | if (!SvTRUE(TOPs)) |
100 | RETURN; | |
101 | else { | |
102 | --SP; | |
103 | RETURNOP(cLOGOP->op_other); | |
104 | } | |
105 | } | |
106 | ||
107 | PP(pp_sassign) | |
108 | { | |
4e35701f | 109 | djSP; dPOPTOPssrl; |
748a9306 | 110 | |
533c011a | 111 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
112 | SV *temp; |
113 | temp = left; left = right; right = temp; | |
114 | } | |
3280af22 | 115 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 116 | TAINT_NOT; |
54310121 | 117 | SvSetMagicSV(right, left); |
a0d0e21e LW |
118 | SETs(right); |
119 | RETURN; | |
120 | } | |
121 | ||
122 | PP(pp_cond_expr) | |
123 | { | |
4e35701f | 124 | djSP; |
a0d0e21e | 125 | if (SvTRUEx(POPs)) |
1a67a97c | 126 | RETURNOP(cLOGOP->op_other); |
a0d0e21e | 127 | else |
1a67a97c | 128 | RETURNOP(cLOGOP->op_next); |
a0d0e21e LW |
129 | } |
130 | ||
131 | PP(pp_unstack) | |
132 | { | |
133 | I32 oldsave; | |
134 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 135 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 136 | FREETMPS; |
3280af22 | 137 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
138 | LEAVE_SCOPE(oldsave); |
139 | return NORMAL; | |
140 | } | |
141 | ||
a0d0e21e LW |
142 | PP(pp_concat) |
143 | { | |
4e35701f | 144 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
145 | { |
146 | dPOPTOPssrl; | |
a0d0e21e LW |
147 | STRLEN len; |
148 | char *s; | |
e84ff256 GS |
149 | bool left_utf = DO_UTF8(left); |
150 | bool right_utf = DO_UTF8(right); | |
69b47968 | 151 | |
a0d0e21e | 152 | if (TARG != left) { |
e84ff256 GS |
153 | if (right_utf && !left_utf) |
154 | sv_utf8_upgrade(left); | |
a0d0e21e | 155 | s = SvPV(left,len); |
e84ff256 | 156 | SvUTF8_off(TARG); |
69b47968 | 157 | if (TARG == right) { |
e84ff256 GS |
158 | if (left_utf && !right_utf) |
159 | sv_utf8_upgrade(right); | |
69b47968 | 160 | sv_insert(TARG, 0, 0, s, len); |
e84ff256 GS |
161 | if (left_utf || right_utf) |
162 | SvUTF8_on(TARG); | |
69b47968 GS |
163 | SETs(TARG); |
164 | RETURN; | |
165 | } | |
a0d0e21e LW |
166 | sv_setpvn(TARG,s,len); |
167 | } | |
e84ff256 | 168 | else if (SvGMAGICAL(TARG)) { |
c07a80fd | 169 | mg_get(TARG); |
e84ff256 GS |
170 | if (right_utf && !left_utf) |
171 | sv_utf8_upgrade(left); | |
172 | } | |
7a4c00b4 | 173 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 174 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 175 | s = SvPV_force(TARG, len); |
4633a7c4 | 176 | } |
e84ff256 GS |
177 | if (left_utf && !right_utf) |
178 | sv_utf8_upgrade(right); | |
a0d0e21e | 179 | s = SvPV(right,len); |
5bc28da9 NIS |
180 | if (SvOK(TARG)) { |
181 | #if defined(PERL_Y2KWARN) | |
e476b1b5 | 182 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 NIS |
183 | STRLEN n; |
184 | char *s = SvPV(TARG,n); | |
185 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
186 | && (n == 2 || !isDIGIT(s[n-3]))) | |
187 | { | |
e476b1b5 | 188 | Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s", |
5bc28da9 NIS |
189 | "about to append an integer to '19'"); |
190 | } | |
191 | } | |
192 | #endif | |
68dc0745 | 193 | sv_catpvn(TARG,s,len); |
5bc28da9 | 194 | } |
68dc0745 | 195 | else |
196 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
e84ff256 GS |
197 | if (left_utf || right_utf) |
198 | SvUTF8_on(TARG); | |
a0d0e21e LW |
199 | SETTARG; |
200 | RETURN; | |
748a9306 | 201 | } |
a0d0e21e LW |
202 | } |
203 | ||
204 | PP(pp_padsv) | |
205 | { | |
4e35701f | 206 | djSP; dTARGET; |
a0d0e21e | 207 | XPUSHs(TARG); |
533c011a NIS |
208 | if (PL_op->op_flags & OPf_MOD) { |
209 | if (PL_op->op_private & OPpLVAL_INTRO) | |
210 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
211 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 212 | PUTBACK; |
533c011a | 213 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
214 | SPAGAIN; |
215 | } | |
4633a7c4 | 216 | } |
a0d0e21e LW |
217 | RETURN; |
218 | } | |
219 | ||
220 | PP(pp_readline) | |
221 | { | |
f5284f61 | 222 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 223 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 GS |
224 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
225 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) | |
f5284f61 | 226 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 | 227 | else { |
f5284f61 IZ |
228 | dSP; |
229 | XPUSHs((SV*)PL_last_in_gv); | |
230 | PUTBACK; | |
cea2e8a9 | 231 | pp_rv2gv(); |
f5284f61 | 232 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 IZ |
233 | } |
234 | } | |
a0d0e21e LW |
235 | return do_readline(); |
236 | } | |
237 | ||
238 | PP(pp_eq) | |
239 | { | |
4e35701f | 240 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
241 | { |
242 | dPOPnv; | |
54310121 | 243 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
244 | RETURN; |
245 | } | |
246 | } | |
247 | ||
248 | PP(pp_preinc) | |
249 | { | |
4e35701f | 250 | djSP; |
68dc0745 | 251 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e | 252 | DIE(aTHX_ PL_no_modify); |
25da4f38 | 253 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff | 254 | SvIVX(TOPs) != IV_MAX) |
255 | { | |
748a9306 | 256 | ++SvIVX(TOPs); |
55497cff | 257 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
258 | } |
259 | else | |
260 | sv_inc(TOPs); | |
a0d0e21e LW |
261 | SvSETMAGIC(TOPs); |
262 | return NORMAL; | |
263 | } | |
264 | ||
265 | PP(pp_or) | |
266 | { | |
4e35701f | 267 | djSP; |
a0d0e21e LW |
268 | if (SvTRUE(TOPs)) |
269 | RETURN; | |
270 | else { | |
271 | --SP; | |
272 | RETURNOP(cLOGOP->op_other); | |
273 | } | |
274 | } | |
275 | ||
276 | PP(pp_add) | |
277 | { | |
4e35701f | 278 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 279 | { |
7a4c00b4 | 280 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
281 | SETn( left + right ); |
282 | RETURN; | |
283 | } | |
284 | } | |
285 | ||
286 | PP(pp_aelemfast) | |
287 | { | |
4e35701f | 288 | djSP; |
1d7c1841 | 289 | AV *av = GvAV(cGVOP_gv); |
533c011a NIS |
290 | U32 lval = PL_op->op_flags & OPf_MOD; |
291 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 292 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 293 | EXTEND(SP, 1); |
be6c24e0 GS |
294 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
295 | sv = sv_mortalcopy(sv); | |
296 | PUSHs(sv); | |
a0d0e21e LW |
297 | RETURN; |
298 | } | |
299 | ||
300 | PP(pp_join) | |
301 | { | |
4e35701f | 302 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
303 | MARK++; |
304 | do_join(TARG, *MARK, MARK, SP); | |
305 | SP = MARK; | |
306 | SETs(TARG); | |
307 | RETURN; | |
308 | } | |
309 | ||
310 | PP(pp_pushre) | |
311 | { | |
4e35701f | 312 | djSP; |
44a8e56a | 313 | #ifdef DEBUGGING |
314 | /* | |
315 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
316 | * will be enough to hold an OP*. | |
317 | */ | |
318 | SV* sv = sv_newmortal(); | |
319 | sv_upgrade(sv, SVt_PVLV); | |
320 | LvTYPE(sv) = '/'; | |
533c011a | 321 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 322 | XPUSHs(sv); |
323 | #else | |
6b88bc9c | 324 | XPUSHs((SV*)PL_op); |
44a8e56a | 325 | #endif |
a0d0e21e LW |
326 | RETURN; |
327 | } | |
328 | ||
329 | /* Oversized hot code. */ | |
330 | ||
331 | PP(pp_print) | |
332 | { | |
4e35701f | 333 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
334 | GV *gv; |
335 | IO *io; | |
760ac839 | 336 | register PerlIO *fp; |
236988e4 | 337 | MAGIC *mg; |
2d8e6c8d | 338 | STRLEN n_a; |
a0d0e21e | 339 | |
533c011a | 340 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
341 | gv = (GV*)*++MARK; |
342 | else | |
3280af22 | 343 | gv = PL_defoutgv; |
155aba94 | 344 | if ((mg = SvTIED_mg((SV*)gv, 'q'))) { |
68dc0745 | 345 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
346 | /* If using default handle then we need to make space to |
347 | * pass object as 1st arg, so move other args up ... | |
348 | */ | |
4352c267 | 349 | MEXTEND(SP, 1); |
68dc0745 | 350 | ++MARK; |
351 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
352 | ++SP; | |
353 | } | |
354 | PUSHMARK(MARK - 1); | |
33c27489 | 355 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 356 | PUTBACK; |
236988e4 | 357 | ENTER; |
864dbfa3 | 358 | call_method("PRINT", G_SCALAR); |
236988e4 | 359 | LEAVE; |
360 | SPAGAIN; | |
68dc0745 | 361 | MARK = ORIGMARK + 1; |
362 | *MARK = *SP; | |
363 | SP = MARK; | |
236988e4 | 364 | RETURN; |
365 | } | |
a0d0e21e | 366 | if (!(io = GvIO(gv))) { |
599cee73 | 367 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 | 368 | SV* sv = sv_newmortal(); |
af8c498a GS |
369 | gv_efullname3(sv, gv, Nullch); |
370 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", | |
371 | SvPV(sv,n_a)); | |
748a9306 | 372 | } |
748a9306 | 373 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e LW |
374 | goto just_say_no; |
375 | } | |
376 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 377 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 GS |
378 | if (IoIFP(io)) { |
379 | SV* sv = sv_newmortal(); | |
380 | gv_efullname3(sv, gv, Nullch); | |
af8c498a GS |
381 | Perl_warner(aTHX_ WARN_IO, |
382 | "Filehandle %s opened only for input", | |
383 | SvPV(sv,n_a)); | |
69282e91 | 384 | } |
599cee73 | 385 | else if (ckWARN(WARN_CLOSED)) |
69282e91 | 386 | report_closed_fh(gv, io, "print", "filehandle"); |
a0d0e21e | 387 | } |
748a9306 | 388 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
389 | goto just_say_no; |
390 | } | |
391 | else { | |
392 | MARK++; | |
3280af22 | 393 | if (PL_ofslen) { |
a0d0e21e LW |
394 | while (MARK <= SP) { |
395 | if (!do_print(*MARK, fp)) | |
396 | break; | |
397 | MARK++; | |
398 | if (MARK <= SP) { | |
3280af22 | 399 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
400 | MARK--; |
401 | break; | |
402 | } | |
403 | } | |
404 | } | |
405 | } | |
406 | else { | |
407 | while (MARK <= SP) { | |
408 | if (!do_print(*MARK, fp)) | |
409 | break; | |
410 | MARK++; | |
411 | } | |
412 | } | |
413 | if (MARK <= SP) | |
414 | goto just_say_no; | |
415 | else { | |
3280af22 NIS |
416 | if (PL_orslen) |
417 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
418 | goto just_say_no; |
419 | ||
420 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 421 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
422 | goto just_say_no; |
423 | } | |
424 | } | |
425 | SP = ORIGMARK; | |
3280af22 | 426 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
427 | RETURN; |
428 | ||
429 | just_say_no: | |
430 | SP = ORIGMARK; | |
3280af22 | 431 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
432 | RETURN; |
433 | } | |
434 | ||
435 | PP(pp_rv2av) | |
436 | { | |
f5284f61 | 437 | djSP; dTOPss; |
a0d0e21e LW |
438 | AV *av; |
439 | ||
440 | if (SvROK(sv)) { | |
441 | wasref: | |
f5284f61 IZ |
442 | tryAMAGICunDEREF(to_av); |
443 | ||
a0d0e21e LW |
444 | av = (AV*)SvRV(sv); |
445 | if (SvTYPE(av) != SVt_PVAV) | |
cea2e8a9 | 446 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a | 447 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 448 | SETs((SV*)av); |
a0d0e21e LW |
449 | RETURN; |
450 | } | |
451 | } | |
452 | else { | |
453 | if (SvTYPE(sv) == SVt_PVAV) { | |
454 | av = (AV*)sv; | |
533c011a | 455 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 456 | SETs((SV*)av); |
a0d0e21e LW |
457 | RETURN; |
458 | } | |
459 | } | |
460 | else { | |
67955e0c | 461 | GV *gv; |
462 | ||
a0d0e21e | 463 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 464 | char *sym; |
2d8e6c8d | 465 | STRLEN n_a; |
748a9306 | 466 | |
a0d0e21e LW |
467 | if (SvGMAGICAL(sv)) { |
468 | mg_get(sv); | |
469 | if (SvROK(sv)) | |
470 | goto wasref; | |
471 | } | |
472 | if (!SvOK(sv)) { | |
533c011a NIS |
473 | if (PL_op->op_flags & OPf_REF || |
474 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 475 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 | 476 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 477 | report_uninit(); |
f5284f61 | 478 | if (GIMME == G_ARRAY) { |
c2444246 | 479 | (void)POPs; |
4633a7c4 | 480 | RETURN; |
f5284f61 IZ |
481 | } |
482 | RETSETUNDEF; | |
a0d0e21e | 483 | } |
2d8e6c8d | 484 | sym = SvPV(sv,n_a); |
35cd451c GS |
485 | if ((PL_op->op_flags & OPf_SPECIAL) && |
486 | !(PL_op->op_flags & OPf_MOD)) | |
487 | { | |
488 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
489 | if (!gv) | |
490 | RETSETUNDEF; | |
491 | } | |
492 | else { | |
493 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 494 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c GS |
495 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
496 | } | |
497 | } | |
498 | else { | |
67955e0c | 499 | gv = (GV*)sv; |
a0d0e21e | 500 | } |
67955e0c | 501 | av = GvAVn(gv); |
533c011a | 502 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 503 | av = save_ary(gv); |
533c011a | 504 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 505 | SETs((SV*)av); |
a0d0e21e LW |
506 | RETURN; |
507 | } | |
508 | } | |
509 | } | |
510 | ||
511 | if (GIMME == G_ARRAY) { | |
512 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 513 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
514 | EXTEND(SP, maxarg); |
515 | if (SvRMAGICAL(av)) { | |
516 | U32 i; | |
517 | for (i=0; i < maxarg; i++) { | |
518 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 519 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
520 | } |
521 | } | |
522 | else { | |
523 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
524 | } | |
a0d0e21e LW |
525 | SP += maxarg; |
526 | } | |
527 | else { | |
528 | dTARGET; | |
529 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 530 | SETi(maxarg); |
a0d0e21e LW |
531 | } |
532 | RETURN; | |
533 | } | |
534 | ||
535 | PP(pp_rv2hv) | |
536 | { | |
4e35701f | 537 | djSP; dTOPss; |
a0d0e21e LW |
538 | HV *hv; |
539 | ||
540 | if (SvROK(sv)) { | |
541 | wasref: | |
f5284f61 IZ |
542 | tryAMAGICunDEREF(to_hv); |
543 | ||
a0d0e21e | 544 | hv = (HV*)SvRV(sv); |
c750a3ec | 545 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 | 546 | DIE(aTHX_ "Not a HASH reference"); |
533c011a | 547 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
548 | SETs((SV*)hv); |
549 | RETURN; | |
550 | } | |
551 | } | |
552 | else { | |
c750a3ec | 553 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 554 | hv = (HV*)sv; |
533c011a | 555 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
556 | SETs((SV*)hv); |
557 | RETURN; | |
558 | } | |
559 | } | |
560 | else { | |
67955e0c | 561 | GV *gv; |
562 | ||
a0d0e21e | 563 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 564 | char *sym; |
2d8e6c8d | 565 | STRLEN n_a; |
748a9306 | 566 | |
a0d0e21e LW |
567 | if (SvGMAGICAL(sv)) { |
568 | mg_get(sv); | |
569 | if (SvROK(sv)) | |
570 | goto wasref; | |
571 | } | |
572 | if (!SvOK(sv)) { | |
533c011a NIS |
573 | if (PL_op->op_flags & OPf_REF || |
574 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 575 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 | 576 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 577 | report_uninit(); |
4633a7c4 LW |
578 | if (GIMME == G_ARRAY) { |
579 | SP--; | |
580 | RETURN; | |
581 | } | |
a0d0e21e LW |
582 | RETSETUNDEF; |
583 | } | |
2d8e6c8d | 584 | sym = SvPV(sv,n_a); |
35cd451c GS |
585 | if ((PL_op->op_flags & OPf_SPECIAL) && |
586 | !(PL_op->op_flags & OPf_MOD)) | |
587 | { | |
588 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
589 | if (!gv) | |
590 | RETSETUNDEF; | |
591 | } | |
592 | else { | |
593 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 594 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c GS |
595 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
596 | } | |
597 | } | |
598 | else { | |
67955e0c | 599 | gv = (GV*)sv; |
a0d0e21e | 600 | } |
67955e0c | 601 | hv = GvHVn(gv); |
533c011a | 602 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 603 | hv = save_hash(gv); |
533c011a | 604 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
605 | SETs((SV*)hv); |
606 | RETURN; | |
607 | } | |
608 | } | |
609 | } | |
610 | ||
611 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 612 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 | 613 | return do_kv(); |
a0d0e21e LW |
614 | } |
615 | else { | |
616 | dTARGET; | |
4b154ab5 GA |
617 | if (SvTYPE(hv) == SVt_PVAV) |
618 | hv = avhv_keys((AV*)hv); | |
b9c39e73 | 619 | if (HvFILL(hv)) |
57def98f JH |
620 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
621 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); | |
a0d0e21e LW |
622 | else |
623 | sv_setiv(TARG, 0); | |
c750a3ec | 624 | |
a0d0e21e LW |
625 | SETTARG; |
626 | RETURN; | |
627 | } | |
628 | } | |
629 | ||
10c8fecd GS |
630 | STATIC int |
631 | S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem, | |
632 | SV **lastrelem) | |
633 | { | |
634 | OP *leftop; | |
10c8fecd GS |
635 | I32 i; |
636 | ||
637 | leftop = ((BINOP*)PL_op)->op_last; | |
638 | assert(leftop); | |
639 | assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST); | |
640 | leftop = ((LISTOP*)leftop)->op_first; | |
641 | assert(leftop); | |
642 | /* Skip PUSHMARK and each element already assigned to. */ | |
643 | for (i = lelem - firstlelem; i > 0; i--) { | |
644 | leftop = leftop->op_sibling; | |
645 | assert(leftop); | |
646 | } | |
647 | if (leftop->op_type != OP_RV2HV) | |
648 | return 0; | |
649 | ||
650 | /* pseudohash */ | |
651 | if (av_len(ary) > 0) | |
652 | av_fill(ary, 0); /* clear all but the fields hash */ | |
653 | if (lastrelem >= relem) { | |
654 | while (relem < lastrelem) { /* gobble up all the rest */ | |
655 | SV *tmpstr; | |
656 | assert(relem[0]); | |
657 | assert(relem[1]); | |
658 | /* Avoid a memory leak when avhv_store_ent dies. */ | |
659 | tmpstr = sv_newmortal(); | |
660 | sv_setsv(tmpstr,relem[1]); /* value */ | |
661 | relem[1] = tmpstr; | |
662 | if (avhv_store_ent(ary,relem[0],tmpstr,0)) | |
d16e9ed9 | 663 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
664 | if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr)) |
665 | mg_set(tmpstr); | |
666 | relem += 2; | |
667 | TAINT_NOT; | |
668 | } | |
669 | } | |
670 | if (relem == lastrelem) | |
671 | return 1; | |
672 | return 2; | |
673 | } | |
674 | ||
675 | STATIC void | |
676 | S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem) | |
677 | { | |
678 | if (*relem) { | |
679 | SV *tmpstr; | |
680 | if (ckWARN(WARN_MISC)) { | |
681 | if (relem == firstrelem && | |
682 | SvROK(*relem) && | |
683 | (SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
684 | SvTYPE(SvRV(*relem)) == SVt_PVHV)) | |
685 | { | |
686 | Perl_warner(aTHX_ WARN_MISC, | |
687 | "Reference found where even-sized list expected"); | |
688 | } | |
689 | else | |
690 | Perl_warner(aTHX_ WARN_MISC, | |
691 | "Odd number of elements in hash assignment"); | |
692 | } | |
693 | if (SvTYPE(hash) == SVt_PVAV) { | |
694 | /* pseudohash */ | |
695 | tmpstr = sv_newmortal(); | |
696 | if (avhv_store_ent((AV*)hash,*relem,tmpstr,0)) | |
d16e9ed9 | 697 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
698 | if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr)) |
699 | mg_set(tmpstr); | |
700 | } | |
701 | else { | |
702 | HE *didstore; | |
703 | tmpstr = NEWSV(29,0); | |
704 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
705 | if (SvMAGICAL(hash)) { | |
706 | if (SvSMAGICAL(tmpstr)) | |
707 | mg_set(tmpstr); | |
708 | if (!didstore) | |
709 | sv_2mortal(tmpstr); | |
710 | } | |
711 | } | |
712 | TAINT_NOT; | |
713 | } | |
714 | } | |
715 | ||
a0d0e21e LW |
716 | PP(pp_aassign) |
717 | { | |
4e35701f | 718 | djSP; |
3280af22 NIS |
719 | SV **lastlelem = PL_stack_sp; |
720 | SV **lastrelem = PL_stack_base + POPMARK; | |
721 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
722 | SV **firstlelem = lastrelem + 1; |
723 | ||
724 | register SV **relem; | |
725 | register SV **lelem; | |
726 | ||
727 | register SV *sv; | |
728 | register AV *ary; | |
729 | ||
54310121 | 730 | I32 gimme; |
a0d0e21e LW |
731 | HV *hash; |
732 | I32 i; | |
733 | int magic; | |
734 | ||
3280af22 | 735 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
736 | |
737 | /* If there's a common identifier on both sides we have to take | |
738 | * special care that assigning the identifier on the left doesn't | |
739 | * clobber a value on the right that's used later in the list. | |
740 | */ | |
10c8fecd | 741 | if (PL_op->op_private & (OPpASSIGN_COMMON)) { |
cc5e57d2 | 742 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
10c8fecd GS |
743 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
744 | /*SUPPRESS 560*/ | |
155aba94 | 745 | if ((sv = *relem)) { |
a1f49e72 | 746 | TAINT_NOT; /* Each item is independent */ |
10c8fecd | 747 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 748 | } |
10c8fecd | 749 | } |
a0d0e21e LW |
750 | } |
751 | ||
752 | relem = firstrelem; | |
753 | lelem = firstlelem; | |
754 | ary = Null(AV*); | |
755 | hash = Null(HV*); | |
10c8fecd | 756 | |
a0d0e21e | 757 | while (lelem <= lastlelem) { |
bbce6d69 | 758 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
759 | sv = *lelem++; |
760 | switch (SvTYPE(sv)) { | |
761 | case SVt_PVAV: | |
762 | ary = (AV*)sv; | |
748a9306 | 763 | magic = SvMAGICAL(ary) != 0; |
10c8fecd GS |
764 | if (PL_op->op_private & OPpASSIGN_HASH) { |
765 | switch (do_maybe_phash(ary, lelem, firstlelem, relem, | |
766 | lastrelem)) | |
767 | { | |
768 | case 0: | |
769 | goto normal_array; | |
770 | case 1: | |
771 | do_oddball((HV*)ary, relem, firstrelem); | |
772 | } | |
773 | relem = lastrelem + 1; | |
774 | break; | |
775 | } | |
776 | normal_array: | |
a0d0e21e | 777 | av_clear(ary); |
7e42bd57 | 778 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
779 | i = 0; |
780 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 781 | SV **didstore; |
a0d0e21e LW |
782 | sv = NEWSV(28,0); |
783 | assert(*relem); | |
784 | sv_setsv(sv,*relem); | |
785 | *(relem++) = sv; | |
5117ca91 GS |
786 | didstore = av_store(ary,i++,sv); |
787 | if (magic) { | |
fb73857a | 788 | if (SvSMAGICAL(sv)) |
789 | mg_set(sv); | |
5117ca91 | 790 | if (!didstore) |
8127e0e3 | 791 | sv_2mortal(sv); |
5117ca91 | 792 | } |
bbce6d69 | 793 | TAINT_NOT; |
a0d0e21e LW |
794 | } |
795 | break; | |
10c8fecd | 796 | case SVt_PVHV: { /* normal hash */ |
a0d0e21e LW |
797 | SV *tmpstr; |
798 | ||
799 | hash = (HV*)sv; | |
748a9306 | 800 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
801 | hv_clear(hash); |
802 | ||
803 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 804 | HE *didstore; |
4633a7c4 | 805 | if (*relem) |
a0d0e21e | 806 | sv = *(relem++); |
4633a7c4 | 807 | else |
3280af22 | 808 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
809 | tmpstr = NEWSV(29,0); |
810 | if (*relem) | |
811 | sv_setsv(tmpstr,*relem); /* value */ | |
812 | *(relem++) = tmpstr; | |
5117ca91 GS |
813 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
814 | if (magic) { | |
fb73857a | 815 | if (SvSMAGICAL(tmpstr)) |
816 | mg_set(tmpstr); | |
5117ca91 | 817 | if (!didstore) |
8127e0e3 | 818 | sv_2mortal(tmpstr); |
5117ca91 | 819 | } |
bbce6d69 | 820 | TAINT_NOT; |
8e07c86e | 821 | } |
6a0deba8 | 822 | if (relem == lastrelem) { |
10c8fecd | 823 | do_oddball(hash, relem, firstrelem); |
6a0deba8 | 824 | relem++; |
1930e939 | 825 | } |
a0d0e21e LW |
826 | } |
827 | break; | |
828 | default: | |
6fc92669 GS |
829 | if (SvIMMORTAL(sv)) { |
830 | if (relem <= lastrelem) | |
831 | relem++; | |
832 | break; | |
a0d0e21e LW |
833 | } |
834 | if (relem <= lastrelem) { | |
835 | sv_setsv(sv, *relem); | |
836 | *(relem++) = sv; | |
837 | } | |
838 | else | |
3280af22 | 839 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
840 | SvSETMAGIC(sv); |
841 | break; | |
842 | } | |
843 | } | |
3280af22 NIS |
844 | if (PL_delaymagic & ~DM_DELAY) { |
845 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 846 | #ifdef HAS_SETRESUID |
b28d0864 | 847 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
848 | #else |
849 | # ifdef HAS_SETREUID | |
3280af22 | 850 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
851 | # else |
852 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
853 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
854 | (void)setruid(PL_uid); | |
855 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 856 | } |
56febc5e AD |
857 | # endif /* HAS_SETRUID */ |
858 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
859 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
860 | (void)seteuid(PL_uid); | |
861 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 862 | } |
56febc5e | 863 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
864 | if (PL_delaymagic & DM_UID) { |
865 | if (PL_uid != PL_euid) | |
cea2e8a9 | 866 | DIE(aTHX_ "No setreuid available"); |
b28d0864 | 867 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 868 | } |
56febc5e AD |
869 | # endif /* HAS_SETREUID */ |
870 | #endif /* HAS_SETRESUID */ | |
d8eceb89 JH |
871 | PL_uid = PerlProc_getuid(); |
872 | PL_euid = PerlProc_geteuid(); | |
a0d0e21e | 873 | } |
3280af22 | 874 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 875 | #ifdef HAS_SETRESGID |
b28d0864 | 876 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
877 | #else |
878 | # ifdef HAS_SETREGID | |
3280af22 | 879 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
880 | # else |
881 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
882 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
883 | (void)setrgid(PL_gid); | |
884 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 885 | } |
56febc5e AD |
886 | # endif /* HAS_SETRGID */ |
887 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
888 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
889 | (void)setegid(PL_gid); | |
890 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 891 | } |
56febc5e | 892 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
893 | if (PL_delaymagic & DM_GID) { |
894 | if (PL_gid != PL_egid) | |
cea2e8a9 | 895 | DIE(aTHX_ "No setregid available"); |
b28d0864 | 896 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 897 | } |
56febc5e AD |
898 | # endif /* HAS_SETREGID */ |
899 | #endif /* HAS_SETRESGID */ | |
d8eceb89 JH |
900 | PL_gid = PerlProc_getgid(); |
901 | PL_egid = PerlProc_getegid(); | |
a0d0e21e | 902 | } |
3280af22 | 903 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 904 | } |
3280af22 | 905 | PL_delaymagic = 0; |
54310121 | 906 | |
907 | gimme = GIMME_V; | |
908 | if (gimme == G_VOID) | |
909 | SP = firstrelem - 1; | |
910 | else if (gimme == G_SCALAR) { | |
911 | dTARGET; | |
912 | SP = firstrelem; | |
913 | SETi(lastrelem - firstrelem + 1); | |
914 | } | |
915 | else { | |
a0d0e21e LW |
916 | if (ary || hash) |
917 | SP = lastrelem; | |
918 | else | |
919 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 920 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 921 | while (relem <= SP) |
3280af22 | 922 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 923 | } |
54310121 | 924 | RETURN; |
a0d0e21e LW |
925 | } |
926 | ||
8782bef2 GB |
927 | PP(pp_qr) |
928 | { | |
929 | djSP; | |
930 | register PMOP *pm = cPMOP; | |
931 | SV *rv = sv_newmortal(); | |
57668c4d | 932 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
933 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
934 | RETURNX(PUSHs(rv)); | |
935 | } | |
936 | ||
a0d0e21e LW |
937 | PP(pp_match) |
938 | { | |
4e35701f | 939 | djSP; dTARG; |
a0d0e21e LW |
940 | register PMOP *pm = cPMOP; |
941 | register char *t; | |
942 | register char *s; | |
943 | char *strend; | |
944 | I32 global; | |
f722798b IZ |
945 | I32 r_flags = REXEC_CHECKED; |
946 | char *truebase; /* Start of string */ | |
d9f97599 | 947 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 948 | bool rxtainted; |
a0d0e21e LW |
949 | I32 gimme = GIMME; |
950 | STRLEN len; | |
748a9306 | 951 | I32 minmatch = 0; |
3280af22 | 952 | I32 oldsave = PL_savestack_ix; |
f86702cc | 953 | I32 update_minmatch = 1; |
e60df1fa | 954 | I32 had_zerolen = 0; |
a0d0e21e | 955 | |
533c011a | 956 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
957 | TARG = POPs; |
958 | else { | |
54b9620d | 959 | TARG = DEFSV; |
a0d0e21e LW |
960 | EXTEND(SP,1); |
961 | } | |
c277df42 | 962 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
963 | s = SvPV(TARG, len); |
964 | strend = s + len; | |
965 | if (!s) | |
cea2e8a9 | 966 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b | 967 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 968 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 969 | TAINT_NOT; |
a0d0e21e | 970 | |
48c036b1 | 971 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 972 | failure: |
a0d0e21e LW |
973 | if (gimme == G_ARRAY) |
974 | RETURN; | |
975 | RETPUSHNO; | |
976 | } | |
977 | ||
3280af22 NIS |
978 | if (!rx->prelen && PL_curpm) { |
979 | pm = PL_curpm; | |
d9f97599 | 980 | rx = pm->op_pmregexp; |
a0d0e21e | 981 | } |
d9f97599 | 982 | if (rx->minlen > len) goto failure; |
c277df42 | 983 | |
a0d0e21e | 984 | truebase = t = s; |
ad94a511 IZ |
985 | |
986 | /* XXXX What part of this is needed with true \G-support? */ | |
155aba94 | 987 | if ((global = pm->op_pmflags & PMf_GLOBAL)) { |
cf93c79d | 988 | rx->startp[0] = -1; |
a0d0e21e LW |
989 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
990 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 991 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 992 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d | 993 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
994 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
995 | r_flags |= REXEC_IGNOREPOS; | |
cf93c79d | 996 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 997 | } |
748a9306 | 998 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 999 | update_minmatch = 0; |
748a9306 | 1000 | } |
a0d0e21e LW |
1001 | } |
1002 | } | |
0ef3e39e HS |
1003 | if ((gimme != G_ARRAY && !global && rx->nparens) |
1004 | || SvTEMP(TARG) || PL_sawampersand) | |
1005 | r_flags |= REXEC_COPY_STR; | |
f722798b | 1006 | if (SvSCREAM(TARG)) |
22e551b9 IZ |
1007 | r_flags |= REXEC_SCREAM; |
1008 | ||
a0d0e21e | 1009 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1010 | SAVEINT(PL_multiline); |
1011 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1012 | } |
1013 | ||
1014 | play_it_again: | |
cf93c79d IZ |
1015 | if (global && rx->startp[0] != -1) { |
1016 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 1017 | if ((s + rx->minlen) > strend) |
a0d0e21e | 1018 | goto nope; |
f86702cc | 1019 | if (update_minmatch++) |
e60df1fa | 1020 | minmatch = had_zerolen; |
a0d0e21e | 1021 | } |
f722798b IZ |
1022 | if (rx->reganch & RE_USE_INTUIT) { |
1023 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1024 | ||
1025 | if (!s) | |
1026 | goto nope; | |
1027 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
1028 | && !PL_sawampersand | |
1029 | && ((rx->reganch & ROPT_NOSCAN) | |
1030 | || !((rx->reganch & RE_INTUIT_TAIL) | |
05b4157f GS |
1031 | && (r_flags & REXEC_SCREAM))) |
1032 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ | |
f722798b | 1033 | goto yup; |
a0d0e21e | 1034 | } |
cea2e8a9 | 1035 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 1036 | { |
3280af22 | 1037 | PL_curpm = pm; |
a0d0e21e | 1038 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1039 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
1040 | goto gotcha; |
1041 | } | |
1042 | else | |
1043 | goto ret_no; | |
1044 | /*NOTREACHED*/ | |
1045 | ||
1046 | gotcha: | |
72311751 GS |
1047 | if (rxtainted) |
1048 | RX_MATCH_TAINTED_on(rx); | |
1049 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
1050 | if (gimme == G_ARRAY) { |
1051 | I32 iters, i, len; | |
1052 | ||
d9f97599 | 1053 | iters = rx->nparens; |
a0d0e21e LW |
1054 | if (global && !iters) |
1055 | i = 1; | |
1056 | else | |
1057 | i = 0; | |
c277df42 | 1058 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 1059 | EXTEND(SP, iters + i); |
bbce6d69 | 1060 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
1061 | for (i = !i; i <= iters; i++) { |
1062 | PUSHs(sv_newmortal()); | |
1063 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
1064 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1065 | len = rx->endp[i] - rx->startp[i]; | |
1066 | s = rx->startp[i] + truebase; | |
a0d0e21e | 1067 | sv_setpvn(*SP, s, len); |
a197cbdd GS |
1068 | if ((pm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { |
1069 | SvUTF8_on(*SP); | |
1070 | sv_utf8_downgrade(*SP, TRUE); | |
1071 | } | |
a0d0e21e LW |
1072 | } |
1073 | } | |
1074 | if (global) { | |
cf93c79d IZ |
1075 | had_zerolen = (rx->startp[0] != -1 |
1076 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 1077 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 1078 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1079 | goto play_it_again; |
1080 | } | |
f7e33566 | 1081 | else if (!iters) |
bde848c5 | 1082 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1083 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1084 | RETURN; |
1085 | } | |
1086 | else { | |
1087 | if (global) { | |
1088 | MAGIC* mg = 0; | |
1089 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1090 | mg = mg_find(TARG, 'g'); | |
1091 | if (!mg) { | |
1092 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1093 | mg = mg_find(TARG, 'g'); | |
1094 | } | |
cf93c79d IZ |
1095 | if (rx->startp[0] != -1) { |
1096 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1097 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1098 | mg->mg_flags |= MGf_MINMATCH; |
1099 | else | |
1100 | mg->mg_flags &= ~MGf_MINMATCH; | |
1101 | } | |
a0d0e21e | 1102 | } |
4633a7c4 | 1103 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1104 | RETPUSHYES; |
1105 | } | |
1106 | ||
f722798b | 1107 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1108 | if (rxtainted) |
1109 | RX_MATCH_TAINTED_on(rx); | |
1110 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1111 | PL_curpm = pm; |
a0d0e21e | 1112 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1113 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1114 | if (RX_MATCH_COPIED(rx)) |
1115 | Safefree(rx->subbeg); | |
1116 | RX_MATCH_COPIED_off(rx); | |
1117 | rx->subbeg = Nullch; | |
a0d0e21e | 1118 | if (global) { |
d9f97599 | 1119 | rx->subbeg = truebase; |
cf93c79d | 1120 | rx->startp[0] = s - truebase; |
f722798b | 1121 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d | 1122 | rx->sublen = strend - truebase; |
a0d0e21e | 1123 | goto gotcha; |
cf93c79d | 1124 | } |
3280af22 | 1125 | if (PL_sawampersand) { |
cf93c79d | 1126 | I32 off; |
a0d0e21e | 1127 | |
cf93c79d IZ |
1128 | rx->subbeg = savepvn(t, strend - t); |
1129 | rx->sublen = strend - t; | |
1130 | RX_MATCH_COPIED_on(rx); | |
1131 | off = rx->startp[0] = s - t; | |
f722798b | 1132 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1133 | } |
1134 | else { /* startp/endp are used by @- @+. */ | |
1135 | rx->startp[0] = s - truebase; | |
f722798b | 1136 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1137 | } |
fc19f8d0 | 1138 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 | 1139 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1140 | RETPUSHYES; |
1141 | ||
1142 | nope: | |
a0d0e21e | 1143 | ret_no: |
c90c0ff4 | 1144 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1145 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1146 | MAGIC* mg = mg_find(TARG, 'g'); | |
1147 | if (mg) | |
565764a8 | 1148 | mg->mg_len = -1; |
a0d0e21e LW |
1149 | } |
1150 | } | |
4633a7c4 | 1151 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1152 | if (gimme == G_ARRAY) |
1153 | RETURN; | |
1154 | RETPUSHNO; | |
1155 | } | |
1156 | ||
1157 | OP * | |
864dbfa3 | 1158 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1159 | { |
1160 | dSP; dTARGETSTACKED; | |
1161 | register SV *sv; | |
1162 | STRLEN tmplen = 0; | |
1163 | STRLEN offset; | |
760ac839 | 1164 | PerlIO *fp; |
3280af22 | 1165 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1166 | register I32 type = PL_op->op_type; |
54310121 | 1167 | I32 gimme = GIMME_V; |
e79b0511 | 1168 | MAGIC *mg; |
a0d0e21e | 1169 | |
155aba94 | 1170 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 | 1171 | PUSHMARK(SP); |
33c27489 | 1172 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1173 | PUTBACK; |
1174 | ENTER; | |
864dbfa3 | 1175 | call_method("READLINE", gimme); |
e79b0511 | 1176 | LEAVE; |
1177 | SPAGAIN; | |
54310121 | 1178 | if (gimme == G_SCALAR) |
1179 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1180 | RETURN; |
1181 | } | |
a0d0e21e LW |
1182 | fp = Nullfp; |
1183 | if (io) { | |
1184 | fp = IoIFP(io); | |
1185 | if (!fp) { | |
1186 | if (IoFLAGS(io) & IOf_ARGV) { | |
1187 | if (IoFLAGS(io) & IOf_START) { | |
a0d0e21e | 1188 | IoLINES(io) = 0; |
3280af22 | 1189 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 | 1190 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 | 1191 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1192 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1193 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1194 | fp = IoIFP(io); |
1195 | goto have_fp; | |
a0d0e21e LW |
1196 | } |
1197 | } | |
3280af22 | 1198 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1199 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1200 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1201 | } |
1202 | } | |
1203 | else if (type == OP_GLOB) { | |
1204 | SV *tmpcmd = NEWSV(55, 0); | |
1205 | SV *tmpglob = POPs; | |
1206 | ENTER; | |
1207 | SAVEFREESV(tmpcmd); | |
1208 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1209 | /* since spawning off a process is a real performance hit */ | |
1210 | { | |
1211 | #include <descrip.h> | |
1212 | #include <lib$routines.h> | |
1213 | #include <nam.h> | |
1214 | #include <rmsdef.h> | |
1215 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1216 | char vmsspec[NAM$C_MAXRSS+1]; | |
1217 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1218 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1219 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1220 | PerlIO *tmpfp; |
a0d0e21e LW |
1221 | STRLEN i; |
1222 | struct dsc$descriptor_s wilddsc | |
1223 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1224 | struct dsc$descriptor_vs rsdsc | |
1225 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1226 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1227 | ||
1228 | /* We could find out if there's an explicit dev/dir or version | |
1229 | by peeking into lib$find_file's internal context at | |
1230 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1231 | but that's unsupported, so I don't want to do it now and | |
1232 | have it bite someone in the future. */ | |
6ad3d225 | 1233 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1234 | cp = SvPV(tmpglob,i); |
1235 | for (; i; i--) { | |
1236 | if (cp[i] == ';') hasver = 1; | |
1237 | if (cp[i] == '.') { | |
1238 | if (sts) hasver = 1; | |
1239 | else sts = 1; | |
1240 | } | |
1241 | if (cp[i] == '/') { | |
1242 | hasdir = isunix = 1; | |
1243 | break; | |
748a9306 | 1244 | } |
a0d0e21e LW |
1245 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1246 | hasdir = 1; | |
1247 | break; | |
1248 | } | |
1249 | } | |
760ac839 | 1250 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1251 | Stat_t st; |
c6ed36e1 | 1252 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1253 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1254 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1255 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1256 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1257 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1258 | end = rstr + (unsigned long int) *rslt; | |
1259 | if (!hasver) while (*end != ';') end--; | |
1260 | *(end++) = '\n'; *end = '\0'; | |
1261 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1262 | if (hasdir) { | |
f86702cc | 1263 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1264 | begin = rstr; |
1265 | } | |
1266 | else { | |
1267 | begin = end; | |
1268 | while (*(--begin) != ']' && *begin != '>') ; | |
1269 | ++begin; | |
1270 | } | |
760ac839 | 1271 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1272 | } |
1273 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1274 | if (ok && sts != RMS$_NMF && |
1275 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1276 | if (!ok) { |
c07a80fd | 1277 | if (!(sts & 1)) { |
1278 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1279 | } | |
760ac839 | 1280 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1281 | fp = NULL; |
1282 | } | |
1283 | else { | |
760ac839 | 1284 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1285 | IoTYPE(io) = '<'; |
1286 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1287 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1288 | } |
1289 | } | |
1290 | } | |
1291 | #else /* !VMS */ | |
1d7c1841 GS |
1292 | #ifdef MACOS_TRADITIONAL |
1293 | sv_setpv(tmpcmd, "glob "); | |
1294 | sv_catsv(tmpcmd, tmpglob); | |
1295 | sv_catpv(tmpcmd, " |"); | |
1296 | #else | |
a0d0e21e | 1297 | #ifdef DOSISH |
67955e0c | 1298 | #ifdef OS2 |
1299 | sv_setpv(tmpcmd, "for a in "); | |
1300 | sv_catsv(tmpcmd, tmpglob); | |
1301 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1302 | #else | |
39e571d4 LM |
1303 | #ifdef DJGPP |
1304 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1305 | sv_catsv(tmpcmd, tmpglob); | |
1306 | #else | |
a0d0e21e LW |
1307 | sv_setpv(tmpcmd, "perlglob "); |
1308 | sv_catsv(tmpcmd, tmpglob); | |
1309 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1310 | #endif /* !DJGPP */ |
67955e0c | 1311 | #endif /* !OS2 */ |
1312 | #else /* !DOSISH */ | |
1313 | #if defined(CSH) | |
3280af22 | 1314 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1315 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1316 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1317 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1318 | #else |
1319 | sv_setpv(tmpcmd, "echo "); | |
1320 | sv_catsv(tmpcmd, tmpglob); | |
1321 | #if 'z' - 'a' == 25 | |
1322 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1323 | #else | |
1324 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1325 | #endif | |
1326 | #endif /* !CSH */ | |
67955e0c | 1327 | #endif /* !DOSISH */ |
1d7c1841 | 1328 | #endif /* MACOS_TRADITIONAL */ |
3280af22 | 1329 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1330 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1331 | fp = IoIFP(io); |
1332 | #endif /* !VMS */ | |
1333 | LEAVE; | |
1334 | } | |
1335 | } | |
1336 | else if (type == OP_GLOB) | |
1337 | SP--; | |
af8c498a GS |
1338 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1339 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() | |
1340 | || fp == PerlIO_stderr())) | |
1341 | { | |
1342 | SV* sv = sv_newmortal(); | |
1343 | gv_efullname3(sv, PL_last_in_gv, Nullch); | |
1344 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", | |
1345 | SvPV_nolen(sv)); | |
1346 | } | |
a0d0e21e LW |
1347 | } |
1348 | if (!fp) { | |
e476b1b5 | 1349 | if (ckWARN2(WARN_GLOB,WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
3f4520fe | 1350 | if (type == OP_GLOB) |
e476b1b5 | 1351 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a GS |
1352 | "glob failed (can't start child: %s)", |
1353 | Strerror(errno)); | |
69282e91 GS |
1354 | else |
1355 | report_closed_fh(PL_last_in_gv, io, "readline", "filehandle"); | |
3f4520fe | 1356 | } |
54310121 | 1357 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1358 | (void)SvOK_off(TARG); |
1359 | PUSHTARG; | |
1360 | } | |
1361 | RETURN; | |
1362 | } | |
a2008d6d | 1363 | have_fp: |
54310121 | 1364 | if (gimme == G_SCALAR) { |
a0d0e21e | 1365 | sv = TARG; |
9607fc9c | 1366 | if (SvROK(sv)) |
1367 | sv_unref(sv); | |
a0d0e21e LW |
1368 | (void)SvUPGRADE(sv, SVt_PV); |
1369 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1370 | if (!tmplen) | |
1371 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1372 | if (type == OP_RCATLINE) | |
1373 | offset = SvCUR(sv); | |
1374 | else | |
1375 | offset = 0; | |
1376 | } | |
54310121 | 1377 | else { |
1378 | sv = sv_2mortal(NEWSV(57, 80)); | |
1379 | offset = 0; | |
1380 | } | |
fbad3eb5 | 1381 | |
684bef36 | 1382 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 | 1383 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 GS |
1384 | (gimme != G_SCALAR || SvCUR(sv) \ |
1385 | || !RsSNARF(rs) || (IoFLAGS(io) & IOf_NOLINE) \ | |
1386 | || ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) | |
fbad3eb5 | 1387 | |
a0d0e21e | 1388 | for (;;) { |
fbad3eb5 GS |
1389 | if (!sv_gets(sv, fp, offset) |
1390 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1391 | { | |
760ac839 | 1392 | PerlIO_clearerr(fp); |
a0d0e21e | 1393 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1394 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1395 | if (fp) |
1396 | continue; | |
3280af22 | 1397 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1398 | } |
1399 | else if (type == OP_GLOB) { | |
e476b1b5 GS |
1400 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1401 | Perl_warner(aTHX_ WARN_GLOB, | |
4eb79ab5 | 1402 | "glob failed (child exited with status %d%s)", |
894356b3 | 1403 | (int)(STATUS_CURRENT >> 8), |
cf494569 | 1404 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1405 | } |
a0d0e21e | 1406 | } |
54310121 | 1407 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1408 | (void)SvOK_off(TARG); |
1409 | PUSHTARG; | |
1410 | } | |
1411 | RETURN; | |
1412 | } | |
bbce6d69 | 1413 | /* This should not be marked tainted if the fp is marked clean */ |
1414 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1415 | TAINT; | |
1416 | SvTAINTED_on(sv); | |
1417 | } | |
a0d0e21e | 1418 | IoLINES(io)++; |
71be2cbc | 1419 | SvSETMAGIC(sv); |
a0d0e21e | 1420 | XPUSHs(sv); |
a0d0e21e LW |
1421 | if (type == OP_GLOB) { |
1422 | char *tmps; | |
1423 | ||
3280af22 | 1424 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1425 | tmps = SvEND(sv) - 1; |
3280af22 | 1426 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1427 | *tmps = '\0'; |
1428 | SvCUR(sv)--; | |
1429 | } | |
1430 | } | |
a0d0e21e LW |
1431 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1432 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1433 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1434 | break; | |
43384a1a | 1435 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1436 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1437 | continue; | |
1438 | } | |
1439 | } | |
54310121 | 1440 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1441 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1442 | SvLEN_set(sv, SvCUR(sv)+1); | |
1443 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1444 | } | |
1445 | sv = sv_2mortal(NEWSV(58, 80)); | |
1446 | continue; | |
1447 | } | |
54310121 | 1448 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1449 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1450 | if (SvCUR(sv) < 60) | |
1451 | SvLEN_set(sv, 80); | |
1452 | else | |
1453 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1454 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1455 | } | |
1456 | RETURN; | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | PP(pp_enter) | |
1461 | { | |
4e35701f | 1462 | djSP; |
c09156bb | 1463 | register PERL_CONTEXT *cx; |
533c011a | 1464 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1465 | |
54310121 | 1466 | if (gimme == -1) { |
1467 | if (cxstack_ix >= 0) | |
1468 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1469 | else | |
1470 | gimme = G_SCALAR; | |
1471 | } | |
a0d0e21e LW |
1472 | |
1473 | ENTER; | |
1474 | ||
1475 | SAVETMPS; | |
924508f0 | 1476 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1477 | |
1478 | RETURN; | |
1479 | } | |
1480 | ||
1481 | PP(pp_helem) | |
1482 | { | |
4e35701f | 1483 | djSP; |
760ac839 | 1484 | HE* he; |
ae77835f | 1485 | SV **svp; |
a0d0e21e | 1486 | SV *keysv = POPs; |
a0d0e21e | 1487 | HV *hv = (HV*)POPs; |
533c011a NIS |
1488 | U32 lval = PL_op->op_flags & OPf_MOD; |
1489 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1490 | SV *sv; |
a0d0e21e | 1491 | |
ae77835f MB |
1492 | if (SvTYPE(hv) == SVt_PVHV) { |
1493 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1494 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1495 | } |
1496 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1497 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1498 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 | 1499 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1500 | } |
c750a3ec | 1501 | else { |
a0d0e21e | 1502 | RETPUSHUNDEF; |
c750a3ec | 1503 | } |
a0d0e21e | 1504 | if (lval) { |
3280af22 | 1505 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1506 | SV* lv; |
1507 | SV* key2; | |
2d8e6c8d GS |
1508 | if (!defer) { |
1509 | STRLEN n_a; | |
cea2e8a9 | 1510 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1511 | } |
68dc0745 | 1512 | lv = sv_newmortal(); |
1513 | sv_upgrade(lv, SVt_PVLV); | |
1514 | LvTYPE(lv) = 'y'; | |
1515 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1516 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1517 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1518 | LvTARGLEN(lv) = 1; | |
1519 | PUSHs(lv); | |
1520 | RETURN; | |
1521 | } | |
533c011a | 1522 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1523 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1524 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1525 | else |
161b7d16 | 1526 | save_helem(hv, keysv, svp); |
5f05dabc | 1527 | } |
533c011a NIS |
1528 | else if (PL_op->op_private & OPpDEREF) |
1529 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1530 | } |
3280af22 | 1531 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1532 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1533 | * Pushing the magical RHS on to the stack is useless, since | |
1534 | * that magic is soon destined to be misled by the local(), | |
1535 | * and thus the later pp_sassign() will fail to mg_get() the | |
1536 | * old value. This should also cure problems with delayed | |
1537 | * mg_get()s. GSAR 98-07-03 */ | |
1538 | if (!lval && SvGMAGICAL(sv)) | |
1539 | sv = sv_mortalcopy(sv); | |
1540 | PUSHs(sv); | |
a0d0e21e LW |
1541 | RETURN; |
1542 | } | |
1543 | ||
1544 | PP(pp_leave) | |
1545 | { | |
4e35701f | 1546 | djSP; |
c09156bb | 1547 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1548 | register SV **mark; |
1549 | SV **newsp; | |
1550 | PMOP *newpm; | |
1551 | I32 gimme; | |
1552 | ||
533c011a | 1553 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1554 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1555 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1556 | } |
1557 | ||
1558 | POPBLOCK(cx,newpm); | |
1559 | ||
533c011a | 1560 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1561 | if (gimme == -1) { |
1562 | if (cxstack_ix >= 0) | |
1563 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1564 | else | |
1565 | gimme = G_SCALAR; | |
1566 | } | |
a0d0e21e | 1567 | |
a1f49e72 | 1568 | TAINT_NOT; |
54310121 | 1569 | if (gimme == G_VOID) |
1570 | SP = newsp; | |
1571 | else if (gimme == G_SCALAR) { | |
1572 | MARK = newsp + 1; | |
1573 | if (MARK <= SP) | |
1574 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1575 | *MARK = TOPs; | |
1576 | else | |
1577 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1578 | else { |
54310121 | 1579 | MEXTEND(mark,0); |
3280af22 | 1580 | *MARK = &PL_sv_undef; |
a0d0e21e | 1581 | } |
54310121 | 1582 | SP = MARK; |
a0d0e21e | 1583 | } |
54310121 | 1584 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1585 | /* in case LEAVE wipes old return values */ |
1586 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1587 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1588 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1589 | TAINT_NOT; /* Each item is independent */ |
1590 | } | |
1591 | } | |
a0d0e21e | 1592 | } |
3280af22 | 1593 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1594 | |
1595 | LEAVE; | |
1596 | ||
1597 | RETURN; | |
1598 | } | |
1599 | ||
1600 | PP(pp_iter) | |
1601 | { | |
4e35701f | 1602 | djSP; |
c09156bb | 1603 | register PERL_CONTEXT *cx; |
5f05dabc | 1604 | SV* sv; |
4633a7c4 | 1605 | AV* av; |
1d7c1841 | 1606 | SV **itersvp; |
a0d0e21e | 1607 | |
924508f0 | 1608 | EXTEND(SP, 1); |
a0d0e21e | 1609 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1610 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1611 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1612 | |
1d7c1841 | 1613 | itersvp = CxITERVAR(cx); |
4633a7c4 | 1614 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1615 | if (SvTYPE(av) != SVt_PVAV) { |
1616 | /* iterate ($min .. $max) */ | |
1617 | if (cx->blk_loop.iterlval) { | |
1618 | /* string increment */ | |
1619 | register SV* cur = cx->blk_loop.iterlval; | |
1620 | STRLEN maxlen; | |
1621 | char *max = SvPV((SV*)av, maxlen); | |
1622 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1623 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1624 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1625 | /* safe to reuse old SV */ |
1d7c1841 | 1626 | sv_setsv(*itersvp, cur); |
eaa5c2d6 GA |
1627 | } |
1628 | else | |
1629 | #endif | |
1630 | { | |
1631 | /* we need a fresh SV every time so that loop body sees a | |
1632 | * completely new SV for closures/references to work as | |
1633 | * they used to */ | |
1d7c1841 GS |
1634 | SvREFCNT_dec(*itersvp); |
1635 | *itersvp = newSVsv(cur); | |
eaa5c2d6 | 1636 | } |
89ea2908 GA |
1637 | if (strEQ(SvPVX(cur), max)) |
1638 | sv_setiv(cur, 0); /* terminate next time */ | |
1639 | else | |
1640 | sv_inc(cur); | |
1641 | RETPUSHYES; | |
1642 | } | |
1643 | RETPUSHNO; | |
1644 | } | |
1645 | /* integer increment */ | |
1646 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1647 | RETPUSHNO; | |
7f61b687 | 1648 | |
eaa5c2d6 | 1649 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1650 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1651 | /* safe to reuse old SV */ |
1d7c1841 | 1652 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 GA |
1653 | } |
1654 | else | |
1655 | #endif | |
1656 | { | |
1657 | /* we need a fresh SV every time so that loop body sees a | |
1658 | * completely new SV for closures/references to work as they | |
1659 | * used to */ | |
1d7c1841 GS |
1660 | SvREFCNT_dec(*itersvp); |
1661 | *itersvp = newSViv(cx->blk_loop.iterix++); | |
eaa5c2d6 | 1662 | } |
89ea2908 GA |
1663 | RETPUSHYES; |
1664 | } | |
1665 | ||
1666 | /* iterate array */ | |
3280af22 | 1667 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1668 | RETPUSHNO; |
a0d0e21e | 1669 | |
1d7c1841 | 1670 | SvREFCNT_dec(*itersvp); |
a0d0e21e | 1671 | |
155aba94 GS |
1672 | if ((sv = SvMAGICAL(av) |
1673 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1674 | : AvARRAY(av)[++cx->blk_loop.iterix])) | |
a0d0e21e | 1675 | SvTEMP_off(sv); |
a0d0e21e | 1676 | else |
3280af22 NIS |
1677 | sv = &PL_sv_undef; |
1678 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1679 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1680 | if (lv && SvREFCNT(lv) > 1) { |
1681 | SvREFCNT_dec(lv); | |
1682 | lv = Nullsv; | |
1683 | } | |
5f05dabc | 1684 | if (lv) |
1685 | SvREFCNT_dec(LvTARG(lv)); | |
1686 | else { | |
68dc0745 | 1687 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1688 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1689 | LvTYPE(lv) = 'y'; |
68dc0745 | 1690 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1691 | } |
1692 | LvTARG(lv) = SvREFCNT_inc(av); | |
1693 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
42718184 | 1694 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc | 1695 | sv = (SV*)lv; |
1696 | } | |
a0d0e21e | 1697 | |
1d7c1841 | 1698 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e LW |
1699 | RETPUSHYES; |
1700 | } | |
1701 | ||
1702 | PP(pp_subst) | |
1703 | { | |
4e35701f | 1704 | djSP; dTARG; |
a0d0e21e LW |
1705 | register PMOP *pm = cPMOP; |
1706 | PMOP *rpm = pm; | |
1707 | register SV *dstr; | |
1708 | register char *s; | |
1709 | char *strend; | |
1710 | register char *m; | |
1711 | char *c; | |
1712 | register char *d; | |
1713 | STRLEN clen; | |
1714 | I32 iters = 0; | |
1715 | I32 maxiters; | |
1716 | register I32 i; | |
1717 | bool once; | |
71be2cbc | 1718 | bool rxtainted; |
a0d0e21e | 1719 | char *orig; |
22e551b9 | 1720 | I32 r_flags; |
d9f97599 | 1721 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1722 | STRLEN len; |
1723 | int force_on_match = 0; | |
3280af22 | 1724 | I32 oldsave = PL_savestack_ix; |
a0d0e21e | 1725 | |
5cd24f17 | 1726 | /* known replacement string? */ |
1727 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1728 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1729 | TARG = POPs; |
1730 | else { | |
54b9620d | 1731 | TARG = DEFSV; |
a0d0e21e | 1732 | EXTEND(SP,1); |
8ec5e241 | 1733 | } |
68dc0745 | 1734 | if (SvREADONLY(TARG) |
1735 | || (SvTYPE(TARG) > SVt_PVLV | |
1736 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
d470f89e | 1737 | DIE(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1738 | PUTBACK; |
1739 | ||
a0d0e21e | 1740 | s = SvPV(TARG, len); |
68dc0745 | 1741 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1742 | force_on_match = 1; |
b3eb6a9b | 1743 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1744 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1745 | if (PL_tainted) | |
b3eb6a9b | 1746 | rxtainted |= 2; |
9212bbba | 1747 | TAINT_NOT; |
a0d0e21e LW |
1748 | |
1749 | force_it: | |
1750 | if (!pm || !s) | |
cea2e8a9 | 1751 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e LW |
1752 | |
1753 | strend = s + len; | |
2beec16e IZ |
1754 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1755 | position, once with zero-length, | |
1756 | second time with non-zero. */ | |
a0d0e21e | 1757 | |
3280af22 NIS |
1758 | if (!rx->prelen && PL_curpm) { |
1759 | pm = PL_curpm; | |
d9f97599 | 1760 | rx = pm->op_pmregexp; |
a0d0e21e | 1761 | } |
22e551b9 | 1762 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1763 | ? REXEC_COPY_STR : 0; |
f722798b | 1764 | if (SvSCREAM(TARG)) |
22e551b9 | 1765 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1766 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1767 | SAVEINT(PL_multiline); |
1768 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1769 | } |
1770 | orig = m = s; | |
f722798b IZ |
1771 | if (rx->reganch & RE_USE_INTUIT) { |
1772 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1773 | ||
1774 | if (!s) | |
1775 | goto nope; | |
1776 | /* How to do it in subst? */ | |
1777 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1778 | && !PL_sawampersand | |
1779 | && ((rx->reganch & ROPT_NOSCAN) | |
1780 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1781 | && (r_flags & REXEC_SCREAM)))) | |
1782 | goto yup; | |
1783 | */ | |
a0d0e21e | 1784 | } |
71be2cbc | 1785 | |
1786 | /* only replace once? */ | |
a0d0e21e | 1787 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1788 | |
1789 | /* known replacement string? */ | |
5cd24f17 | 1790 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1791 | |
1792 | /* can do inplace substitution? */ | |
22e551b9 | 1793 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1794 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1795 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1796 | r_flags | REXEC_CHECKED)) | |
1797 | { | |
8ec5e241 | 1798 | SPAGAIN; |
3280af22 | 1799 | PUSHs(&PL_sv_no); |
71be2cbc | 1800 | LEAVE_SCOPE(oldsave); |
1801 | RETURN; | |
1802 | } | |
1803 | if (force_on_match) { | |
1804 | force_on_match = 0; | |
1805 | s = SvPV_force(TARG, len); | |
1806 | goto force_it; | |
1807 | } | |
71be2cbc | 1808 | d = s; |
3280af22 | 1809 | PL_curpm = pm; |
71be2cbc | 1810 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1811 | if (once) { | |
48c036b1 | 1812 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1813 | m = orig + rx->startp[0]; |
1814 | d = orig + rx->endp[0]; | |
71be2cbc | 1815 | s = orig; |
1816 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1817 | if (clen) { | |
1818 | Copy(c, m, clen, char); | |
1819 | m += clen; | |
a0d0e21e | 1820 | } |
71be2cbc | 1821 | i = strend - d; |
1822 | if (i > 0) { | |
1823 | Move(d, m, i, char); | |
1824 | m += i; | |
a0d0e21e | 1825 | } |
71be2cbc | 1826 | *m = '\0'; |
1827 | SvCUR_set(TARG, m - s); | |
1828 | } | |
1829 | /*SUPPRESS 560*/ | |
155aba94 | 1830 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc | 1831 | d -= clen; |
1832 | m = d; | |
1833 | sv_chop(TARG, d-i); | |
1834 | s += i; | |
1835 | while (i--) | |
1836 | *--d = *--s; | |
1837 | if (clen) | |
1838 | Copy(c, m, clen, char); | |
1839 | } | |
1840 | else if (clen) { | |
1841 | d -= clen; | |
1842 | sv_chop(TARG, d); | |
1843 | Copy(c, d, clen, char); | |
1844 | } | |
1845 | else { | |
1846 | sv_chop(TARG, d); | |
1847 | } | |
48c036b1 | 1848 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1849 | SPAGAIN; |
3280af22 | 1850 | PUSHs(&PL_sv_yes); |
71be2cbc | 1851 | } |
1852 | else { | |
71be2cbc | 1853 | do { |
1854 | if (iters++ > maxiters) | |
cea2e8a9 | 1855 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1856 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1857 | m = rx->startp[0] + orig; |
71be2cbc | 1858 | /*SUPPRESS 560*/ |
155aba94 | 1859 | if ((i = m - s)) { |
71be2cbc | 1860 | if (s != d) |
1861 | Move(s, d, i, char); | |
1862 | d += i; | |
a0d0e21e | 1863 | } |
71be2cbc | 1864 | if (clen) { |
1865 | Copy(c, d, clen, char); | |
1866 | d += clen; | |
1867 | } | |
cf93c79d | 1868 | s = rx->endp[0] + orig; |
cea2e8a9 | 1869 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1870 | TARG, NULL, |
1871 | /* don't match same null twice */ | |
1872 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc | 1873 | if (s != d) { |
1874 | i = strend - s; | |
1875 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1876 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1877 | } |
48c036b1 | 1878 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1879 | SPAGAIN; |
71be2cbc | 1880 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1881 | } |
71be2cbc | 1882 | (void)SvPOK_only(TARG); |
48c036b1 | 1883 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1884 | if (SvSMAGICAL(TARG)) { |
1885 | PUTBACK; | |
1886 | mg_set(TARG); | |
1887 | SPAGAIN; | |
1888 | } | |
9212bbba | 1889 | SvTAINT(TARG); |
71be2cbc | 1890 | LEAVE_SCOPE(oldsave); |
1891 | RETURN; | |
a0d0e21e | 1892 | } |
71be2cbc | 1893 | |
f722798b IZ |
1894 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1895 | r_flags | REXEC_CHECKED)) | |
1896 | { | |
a0d0e21e LW |
1897 | if (force_on_match) { |
1898 | force_on_match = 0; | |
1899 | s = SvPV_force(TARG, len); | |
1900 | goto force_it; | |
1901 | } | |
48c036b1 | 1902 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1903 | dstr = NEWSV(25, len); |
a0d0e21e | 1904 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1905 | PL_curpm = pm; |
a0d0e21e | 1906 | if (!c) { |
c09156bb | 1907 | register PERL_CONTEXT *cx; |
8ec5e241 | 1908 | SPAGAIN; |
a0d0e21e LW |
1909 | PUSHSUBST(cx); |
1910 | RETURNOP(cPMOP->op_pmreplroot); | |
1911 | } | |
cf93c79d | 1912 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1913 | do { |
1914 | if (iters++ > maxiters) | |
cea2e8a9 | 1915 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1916 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1917 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
1918 | m = s; |
1919 | s = orig; | |
cf93c79d | 1920 | orig = rx->subbeg; |
a0d0e21e LW |
1921 | s = orig + (m - s); |
1922 | strend = s + (strend - m); | |
1923 | } | |
cf93c79d | 1924 | m = rx->startp[0] + orig; |
a0d0e21e | 1925 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 1926 | s = rx->endp[0] + orig; |
a0d0e21e LW |
1927 | if (clen) |
1928 | sv_catpvn(dstr, c, clen); | |
1929 | if (once) | |
1930 | break; | |
cea2e8a9 | 1931 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1932 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1933 | |
4633a7c4 | 1934 | (void)SvOOK_off(TARG); |
cb0b1708 | 1935 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1936 | SvPVX(TARG) = SvPVX(dstr); |
1937 | SvCUR_set(TARG, SvCUR(dstr)); | |
1938 | SvLEN_set(TARG, SvLEN(dstr)); | |
1939 | SvPVX(dstr) = 0; | |
1940 | sv_free(dstr); | |
1941 | ||
48c036b1 | 1942 | TAINT_IF(rxtainted & 1); |
f878fbec | 1943 | SPAGAIN; |
48c036b1 GS |
1944 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1945 | ||
a0d0e21e | 1946 | (void)SvPOK_only(TARG); |
48c036b1 | 1947 | TAINT_IF(rxtainted); |
a0d0e21e | 1948 | SvSETMAGIC(TARG); |
9212bbba | 1949 | SvTAINT(TARG); |
4633a7c4 | 1950 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1951 | RETURN; |
1952 | } | |
5cd24f17 | 1953 | goto ret_no; |
a0d0e21e LW |
1954 | |
1955 | nope: | |
8ec5e241 NIS |
1956 | ret_no: |
1957 | SPAGAIN; | |
3280af22 | 1958 | PUSHs(&PL_sv_no); |
4633a7c4 | 1959 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1960 | RETURN; |
1961 | } | |
1962 | ||
1963 | PP(pp_grepwhile) | |
1964 | { | |
4e35701f | 1965 | djSP; |
a0d0e21e LW |
1966 | |
1967 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1968 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1969 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1970 | LEAVE; /* exit inner scope */ |
1971 | ||
1972 | /* All done yet? */ | |
3280af22 | 1973 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1974 | I32 items; |
54310121 | 1975 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1976 | |
1977 | LEAVE; /* exit outer scope */ | |
1978 | (void)POPMARK; /* pop src */ | |
3280af22 | 1979 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1980 | (void)POPMARK; /* pop dst */ |
3280af22 | 1981 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1982 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1983 | dTARGET; |
1984 | XPUSHi(items); | |
a0d0e21e | 1985 | } |
54310121 | 1986 | else if (gimme == G_ARRAY) |
1987 | SP += items; | |
a0d0e21e LW |
1988 | RETURN; |
1989 | } | |
1990 | else { | |
1991 | SV *src; | |
1992 | ||
1993 | ENTER; /* enter inner scope */ | |
1d7c1841 | 1994 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1995 | |
3280af22 | 1996 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1997 | SvTEMP_off(src); |
54b9620d | 1998 | DEFSV = src; |
a0d0e21e LW |
1999 | |
2000 | RETURNOP(cLOGOP->op_other); | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | PP(pp_leavesub) | |
2005 | { | |
4e35701f | 2006 | djSP; |
a0d0e21e LW |
2007 | SV **mark; |
2008 | SV **newsp; | |
2009 | PMOP *newpm; | |
2010 | I32 gimme; | |
c09156bb | 2011 | register PERL_CONTEXT *cx; |
b0d9ce38 | 2012 | SV *sv; |
a0d0e21e LW |
2013 | |
2014 | POPBLOCK(cx,newpm); | |
f86702cc | 2015 | |
a1f49e72 | 2016 | TAINT_NOT; |
a0d0e21e LW |
2017 | if (gimme == G_SCALAR) { |
2018 | MARK = newsp + 1; | |
a29cdaf0 | 2019 | if (MARK <= SP) { |
a8bba7fa | 2020 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2021 | if (SvTEMP(TOPs)) { |
2022 | *MARK = SvREFCNT_inc(TOPs); | |
2023 | FREETMPS; | |
2024 | sv_2mortal(*MARK); | |
cd06dffe GS |
2025 | } |
2026 | else { | |
959e3673 | 2027 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 | 2028 | FREETMPS; |
959e3673 GS |
2029 | *MARK = sv_mortalcopy(sv); |
2030 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2031 | } |
cd06dffe GS |
2032 | } |
2033 | else | |
a29cdaf0 | 2034 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe GS |
2035 | } |
2036 | else { | |
f86702cc | 2037 | MEXTEND(MARK, 0); |
3280af22 | 2038 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
2039 | } |
2040 | SP = MARK; | |
2041 | } | |
54310121 | 2042 | else if (gimme == G_ARRAY) { |
f86702cc | 2043 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 2044 | if (!SvTEMP(*MARK)) { |
f86702cc | 2045 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
2046 | TAINT_NOT; /* Each item is independent */ |
2047 | } | |
f86702cc | 2048 | } |
a0d0e21e | 2049 | } |
f86702cc | 2050 | PUTBACK; |
2051 | ||
b0d9ce38 | 2052 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 | 2053 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
2054 | |
2055 | LEAVE; | |
b0d9ce38 | 2056 | LEAVESUB(sv); |
a0d0e21e LW |
2057 | return pop_return(); |
2058 | } | |
2059 | ||
cd06dffe GS |
2060 | /* This duplicates the above code because the above code must not |
2061 | * get any slower by more conditions */ | |
2062 | PP(pp_leavesublv) | |
2063 | { | |
2064 | djSP; | |
2065 | SV **mark; | |
2066 | SV **newsp; | |
2067 | PMOP *newpm; | |
2068 | I32 gimme; | |
2069 | register PERL_CONTEXT *cx; | |
b0d9ce38 | 2070 | SV *sv; |
cd06dffe GS |
2071 | |
2072 | POPBLOCK(cx,newpm); | |
cd06dffe GS |
2073 | |
2074 | TAINT_NOT; | |
2075 | ||
2076 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { | |
2077 | /* We are an argument to a function or grep(). | |
2078 | * This kind of lvalueness was legal before lvalue | |
2079 | * subroutines too, so be backward compatible: | |
2080 | * cannot report errors. */ | |
2081 | ||
2082 | /* Scalar context *is* possible, on the LHS of -> only, | |
2083 | * as in f()->meth(). But this is not an lvalue. */ | |
2084 | if (gimme == G_SCALAR) | |
2085 | goto temporise; | |
2086 | if (gimme == G_ARRAY) { | |
a8bba7fa | 2087 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe GS |
2088 | goto temporise_array; |
2089 | EXTEND_MORTAL(SP - newsp); | |
2090 | for (mark = newsp + 1; mark <= SP; mark++) { | |
2091 | if (SvTEMP(*mark)) | |
2092 | /* empty */ ; | |
2093 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) | |
2094 | *mark = sv_mortalcopy(*mark); | |
2095 | else { | |
2096 | /* Can be a localized value subject to deletion. */ | |
2097 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2098 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2099 | } |
2100 | } | |
2101 | } | |
2102 | } | |
2103 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ | |
2104 | /* Here we go for robustness, not for speed, so we change all | |
2105 | * the refcounts so the caller gets a live guy. Cannot set | |
2106 | * TEMP, so sv_2mortal is out of question. */ | |
a8bba7fa | 2107 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 | 2108 | POPSUB(cx,sv); |
d470f89e | 2109 | PL_curpm = newpm; |
b0d9ce38 GS |
2110 | LEAVE; |
2111 | LEAVESUB(sv); | |
d470f89e GS |
2112 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2113 | } | |
cd06dffe GS |
2114 | if (gimme == G_SCALAR) { |
2115 | MARK = newsp + 1; | |
2116 | EXTEND_MORTAL(1); | |
2117 | if (MARK == SP) { | |
d470f89e | 2118 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 | 2119 | POPSUB(cx,sv); |
d470f89e | 2120 | PL_curpm = newpm; |
b0d9ce38 GS |
2121 | LEAVE; |
2122 | LEAVESUB(sv); | |
d470f89e | 2123 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe | 2124 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e | 2125 | } |
cd06dffe GS |
2126 | else { /* Can be a localized value |
2127 | * subject to deletion. */ | |
2128 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2129 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2130 | } |
2131 | } | |
d470f89e | 2132 | else { /* Should not happen? */ |
b0d9ce38 | 2133 | POPSUB(cx,sv); |
d470f89e | 2134 | PL_curpm = newpm; |
b0d9ce38 GS |
2135 | LEAVE; |
2136 | LEAVESUB(sv); | |
d470f89e | 2137 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe | 2138 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e | 2139 | } |
cd06dffe GS |
2140 | SP = MARK; |
2141 | } | |
2142 | else if (gimme == G_ARRAY) { | |
2143 | EXTEND_MORTAL(SP - newsp); | |
2144 | for (mark = newsp + 1; mark <= SP; mark++) { | |
d470f89e GS |
2145 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2146 | /* Might be flattened array after $#array = */ | |
2147 | PUTBACK; | |
b0d9ce38 | 2148 | POPSUB(cx,sv); |
d470f89e | 2149 | PL_curpm = newpm; |
b0d9ce38 GS |
2150 | LEAVE; |
2151 | LEAVESUB(sv); | |
d470f89e | 2152 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe GS |
2153 | (*mark != &PL_sv_undef) |
2154 | ? (SvREADONLY(TOPs) | |
2155 | ? "a readonly value" : "a temporary") | |
2156 | : "an uninitialized value"); | |
d470f89e | 2157 | } |
cd06dffe | 2158 | else { |
cd06dffe GS |
2159 | /* Can be a localized value subject to deletion. */ |
2160 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2161 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2162 | } |
2163 | } | |
2164 | } | |
2165 | } | |
2166 | else { | |
2167 | if (gimme == G_SCALAR) { | |
2168 | temporise: | |
2169 | MARK = newsp + 1; | |
2170 | if (MARK <= SP) { | |
a8bba7fa | 2171 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe GS |
2172 | if (SvTEMP(TOPs)) { |
2173 | *MARK = SvREFCNT_inc(TOPs); | |
2174 | FREETMPS; | |
2175 | sv_2mortal(*MARK); | |
2176 | } | |
2177 | else { | |
959e3673 | 2178 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe | 2179 | FREETMPS; |
959e3673 GS |
2180 | *MARK = sv_mortalcopy(sv); |
2181 | SvREFCNT_dec(sv); | |
cd06dffe GS |
2182 | } |
2183 | } | |
2184 | else | |
2185 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2186 | } | |
2187 | else { | |
2188 | MEXTEND(MARK, 0); | |
2189 | *MARK = &PL_sv_undef; | |
2190 | } | |
2191 | SP = MARK; | |
2192 | } | |
2193 | else if (gimme == G_ARRAY) { | |
2194 | temporise_array: | |
2195 | for (MARK = newsp + 1; MARK <= SP; MARK++) { | |
2196 | if (!SvTEMP(*MARK)) { | |
2197 | *MARK = sv_mortalcopy(*MARK); | |
2198 | TAINT_NOT; /* Each item is independent */ | |
2199 | } | |
2200 | } | |
2201 | } | |
2202 | } | |
2203 | PUTBACK; | |
2204 | ||
b0d9ce38 | 2205 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe GS |
2206 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2207 | ||
2208 | LEAVE; | |
b0d9ce38 | 2209 | LEAVESUB(sv); |
cd06dffe GS |
2210 | return pop_return(); |
2211 | } | |
2212 | ||
2213 | ||
76e3520e | 2214 | STATIC CV * |
cea2e8a9 | 2215 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 MB |
2216 | { |
2217 | dTHR; | |
3280af22 | 2218 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2219 | |
2220 | if (!PERLDB_SUB_NN) { | |
2221 | GV *gv = CvGV(cv); | |
2222 | ||
2223 | save_item(dbsv); | |
2224 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
2225 | || strEQ(GvNAME(gv), "END") | |
2226 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
2227 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2228 | && (gv = (GV*)*svp) ))) { | |
2229 | /* Use GV from the stack as a fallback. */ | |
2230 | /* GV is potentially non-unique, or contain different CV. */ | |
2231 | sv_setsv(dbsv, newRV((SV*)cv)); | |
2232 | } | |
2233 | else { | |
2234 | gv_efullname3(dbsv, gv, Nullch); | |
2235 | } | |
3de9ffa1 MB |
2236 | } |
2237 | else { | |
155aba94 GS |
2238 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2239 | (void)SvIOK_on(dbsv); | |
491527d0 | 2240 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 | 2241 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 | 2242 | } |
491527d0 | 2243 | |
3de9ffa1 | 2244 | if (CvXSUB(cv)) |
3280af22 NIS |
2245 | PL_curcopdb = PL_curcop; |
2246 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2247 | return cv; |
2248 | } | |
2249 | ||
a0d0e21e LW |
2250 | PP(pp_entersub) |
2251 | { | |
4e35701f | 2252 | djSP; dPOPss; |
a0d0e21e LW |
2253 | GV *gv; |
2254 | HV *stash; | |
2255 | register CV *cv; | |
c09156bb | 2256 | register PERL_CONTEXT *cx; |
5d94fbed | 2257 | I32 gimme; |
533c011a | 2258 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2259 | |
2260 | if (!sv) | |
cea2e8a9 | 2261 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2262 | switch (SvTYPE(sv)) { |
2263 | default: | |
2264 | if (!SvROK(sv)) { | |
748a9306 | 2265 | char *sym; |
2d8e6c8d | 2266 | STRLEN n_a; |
748a9306 | 2267 | |
3280af22 | 2268 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2269 | if (hasargs) |
3280af22 | 2270 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2271 | RETURN; |
fb73857a | 2272 | } |
15ff848f CS |
2273 | if (SvGMAGICAL(sv)) { |
2274 | mg_get(sv); | |
2275 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2276 | } | |
2277 | else | |
2d8e6c8d | 2278 | sym = SvPV(sv, n_a); |
15ff848f | 2279 | if (!sym) |
cea2e8a9 | 2280 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2281 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2282 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2283 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2284 | break; |
2285 | } | |
f5284f61 IZ |
2286 | { |
2287 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2288 | tryAMAGICunDEREF(to_cv); | |
2289 | } | |
a0d0e21e LW |
2290 | cv = (CV*)SvRV(sv); |
2291 | if (SvTYPE(cv) == SVt_PVCV) | |
2292 | break; | |
2293 | /* FALL THROUGH */ | |
2294 | case SVt_PVHV: | |
2295 | case SVt_PVAV: | |
cea2e8a9 | 2296 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2297 | case SVt_PVCV: |
2298 | cv = (CV*)sv; | |
2299 | break; | |
2300 | case SVt_PVGV: | |
8ebc5c01 | 2301 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2302 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2303 | if (!cv) { | |
2304 | ENTER; | |
2305 | SAVETMPS; | |
2306 | goto try_autoload; | |
2307 | } | |
2308 | break; | |
a0d0e21e LW |
2309 | } |
2310 | ||
2311 | ENTER; | |
2312 | SAVETMPS; | |
2313 | ||
2314 | retry: | |
a0d0e21e | 2315 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2316 | GV* autogv; |
22239a37 | 2317 | SV* sub_name; |
44a8e56a | 2318 | |
2319 | /* anonymous or undef'd function leaves us no recourse */ | |
2320 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2321 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2322 | |
44a8e56a | 2323 | /* autoloaded stub? */ |
2324 | if (cv != GvCV(gv)) { | |
2325 | cv = GvCV(gv); | |
a0d0e21e | 2326 | } |
44a8e56a | 2327 | /* should call AUTOLOAD now? */ |
67caa1fe | 2328 | else { |
f6ec51f7 GS |
2329 | try_autoload: |
2330 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2331 | FALSE))) | |
2332 | { | |
2333 | cv = GvCV(autogv); | |
2334 | } | |
2335 | /* sorry */ | |
2336 | else { | |
2337 | sub_name = sv_newmortal(); | |
2338 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2339 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2340 | } |
67caa1fe GS |
2341 | } |
2342 | if (!cv) | |
cea2e8a9 | 2343 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2344 | goto retry; |
a0d0e21e LW |
2345 | } |
2346 | ||
54310121 | 2347 | gimme = GIMME_V; |
67caa1fe | 2348 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2349 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2350 | if (!cv) |
cea2e8a9 | 2351 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2352 | } |
a0d0e21e | 2353 | |
11343788 | 2354 | #ifdef USE_THREADS |
3de9ffa1 MB |
2355 | /* |
2356 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2357 | * If so, we gain a lock on the CV, the first argument or the |
2358 | * stash (for static methods), as appropriate. This has to be | |
2359 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2360 | * reschedule by returning a new op. | |
3de9ffa1 | 2361 | */ |
11343788 | 2362 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2363 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2364 | MAGIC *mg; | |
2365 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2366 | if (SP > PL_stack_base + TOPMARK) |
2367 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2368 | else { |
13e08037 GS |
2369 | AV *av = (AV*)PL_curpad[0]; |
2370 | if (hasargs || !av || AvFILLp(av) < 0 | |
2371 | || !(sv = AvARRAY(av)[0])) | |
2372 | { | |
2373 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
d470f89e | 2374 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 | 2375 | } |
77a005ab MB |
2376 | } |
2377 | if (SvROK(sv)) | |
2378 | sv = SvRV(sv); | |
458fb581 MB |
2379 | else { |
2380 | STRLEN len; | |
2381 | char *stashname = SvPV(sv, len); | |
2382 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2383 | } | |
77a005ab MB |
2384 | } |
2385 | else { | |
2386 | sv = (SV*)cv; | |
2387 | } | |
2388 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2389 | mg = condpair_magic(sv); | |
2390 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2391 | if (MgOWNER(mg) == thr) | |
2392 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2393 | else { | |
2394 | while (MgOWNER(mg)) | |
2395 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2396 | MgOWNER(mg) = thr; | |
bf49b057 | 2397 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 | 2398 | thr, sv);) |
77a005ab | 2399 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee | 2400 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 | 2401 | } |
77a005ab | 2402 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2403 | } |
3de9ffa1 MB |
2404 | /* |
2405 | * Now we have permission to enter the sub, we must distinguish | |
2406 | * four cases. (0) It's an XSUB (in which case we don't care | |
2407 | * about ownership); (1) it's ours already (and we're recursing); | |
2408 | * (2) it's free (but we may already be using a cached clone); | |
2409 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2410 | * Case (2) means we look for a clone--if we have one, use it | |
2411 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2412 | * clone (for non-XSUBs) and have to create one if we don't | |
2413 | * already have one. | |
2414 | * Why look for a clone in case (2) when we could just grab | |
2415 | * ownership of cv straight away? Well, we could be recursing, | |
2416 | * i.e. we originally tried to enter cv while another thread | |
2417 | * owned it (hence we used a clone) but it has been freed up | |
2418 | * and we're now recursing into it. It may or may not be "better" | |
2419 | * to use the clone but at least CvDEPTH can be trusted. | |
2420 | */ | |
2421 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2422 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2423 | else { |
3de9ffa1 MB |
2424 | /* Case (2) or (3) */ |
2425 | SV **svp; | |
2426 | ||
11343788 | 2427 | /* |
3de9ffa1 MB |
2428 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2429 | * do the hv_fetch? We might find someone has pinched it | |
2430 | * when we look again, in which case we would be in case | |
2431 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2432 | * that we released the mutex more quickly make up for this? | |
2433 | */ | |
b099ddc0 | 2434 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2435 | { |
3de9ffa1 | 2436 | /* We already have a clone to use */ |
11343788 | 2437 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2438 | cv = *(CV**)svp; |
bf49b057 | 2439 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2440 | "entersub: %p already has clone %p:%s\n", |
2441 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2442 | CvOWNER(cv) = thr; |
2443 | SvREFCNT_inc(cv); | |
2444 | if (CvDEPTH(cv) == 0) | |
c76ac1ee | 2445 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 | 2446 | } |
11343788 | 2447 | else { |
3de9ffa1 MB |
2448 | /* (2) => grab ownership of cv. (3) => make clone */ |
2449 | if (!CvOWNER(cv)) { | |
2450 | CvOWNER(cv) = thr; | |
2451 | SvREFCNT_inc(cv); | |
11343788 | 2452 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 | 2453 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2454 | "entersub: %p grabbing %p:%s in stash %s\n", |
2455 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 | 2456 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe GS |
2457 | } |
2458 | else { | |
3de9ffa1 MB |
2459 | /* Make a new clone. */ |
2460 | CV *clonecv; | |
2461 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2462 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
bf49b057 | 2463 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2464 | "entersub: %p cloning %p:%s\n", |
2465 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2466 | /* |
2467 | * We're creating a new clone so there's no race | |
2468 | * between the original MUTEX_UNLOCK and the | |
2469 | * SvREFCNT_inc since no one will be trying to undef | |
2470 | * it out from underneath us. At least, I don't think | |
2471 | * there's a race... | |
2472 | */ | |
2473 | clonecv = cv_clone(cv); | |
2474 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2475 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2476 | CvOWNER(clonecv) = thr; |
2477 | cv = clonecv; | |
11343788 | 2478 | SvREFCNT_inc(cv); |
11343788 | 2479 | } |
8b73bbec | 2480 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 | 2481 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 | 2482 | CvDEPTH(cv));); |
c76ac1ee | 2483 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 | 2484 | } |
3de9ffa1 | 2485 | } |
11343788 MB |
2486 | #endif /* USE_THREADS */ |
2487 | ||
a0d0e21e | 2488 | if (CvXSUB(cv)) { |
67caa1fe | 2489 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2490 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2491 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2492 | dMARK; |
2493 | register I32 items = SP - MARK; | |
67955e0c | 2494 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2495 | while (SP > mark) { |
2496 | SP[1] = SP[0]; | |
2497 | SP--; | |
a0d0e21e | 2498 | } |
3280af22 | 2499 | PL_stack_sp = mark + 1; |
1d7c1841 | 2500 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
ecfc5424 | 2501 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2502 | MARK - PL_stack_base + 1, |
ecfc5424 | 2503 | items); |
3280af22 | 2504 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2505 | } |
67caa1fe GS |
2506 | else |
2507 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2508 | { | |
748a9306 LW |
2509 | I32 markix = TOPMARK; |
2510 | ||
a0d0e21e | 2511 | PUTBACK; |
67955e0c | 2512 | |
2513 | if (!hasargs) { | |
2514 | /* Need to copy @_ to stack. Alternative may be to | |
2515 | * switch stack to @_, and copy return values | |
2516 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2517 | AV* av; |
2518 | I32 items; | |
2519 | #ifdef USE_THREADS | |
533c011a | 2520 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2521 | #else |
3280af22 | 2522 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2523 | #endif /* USE_THREADS */ |
93965878 | 2524 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2525 | |
2526 | if (items) { | |
2527 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2528 | EXTEND(SP, items); |
2529 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2530 | SP += items; | |
67955e0c | 2531 | PUTBACK ; |
2532 | } | |
2533 | } | |
67caa1fe GS |
2534 | /* We assume first XSUB in &DB::sub is the called one. */ |
2535 | if (PL_curcopdb) { | |
1d7c1841 | 2536 | SAVEVPTR(PL_curcop); |
3280af22 NIS |
2537 | PL_curcop = PL_curcopdb; |
2538 | PL_curcopdb = NULL; | |
67955e0c | 2539 | } |
2540 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2541 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2542 | |
2543 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2544 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2545 | if (markix > PL_stack_sp - PL_stack_base) | |
2546 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2547 | else |
3280af22 NIS |
2548 | *(PL_stack_base + markix) = *PL_stack_sp; |
2549 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2550 | } |
a0d0e21e LW |
2551 | } |
2552 | LEAVE; | |
2553 | return NORMAL; | |
2554 | } | |
2555 | else { | |
2556 | dMARK; | |
2557 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2558 | AV* padlist = CvPADLIST(cv); |
2559 | SV** svp = AvARRAY(padlist); | |
533c011a | 2560 | push_return(PL_op->op_next); |
a0d0e21e LW |
2561 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2562 | PUSHSUB(cx); | |
2563 | CvDEPTH(cv)++; | |
6b35e009 GS |
2564 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2565 | * that eval'' ops within this sub know the correct lexical space. | |
2566 | * Owing the speed considerations, we choose to search for the cv | |
2567 | * in doeval() instead. | |
2568 | */ | |
a0d0e21e LW |
2569 | if (CvDEPTH(cv) < 2) |
2570 | (void)SvREFCNT_inc(cv); | |
2571 | else { /* save temporaries on recursion? */ | |
1d7c1841 | 2572 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 | 2573 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2574 | AV *av; |
2575 | AV *newpad = newAV(); | |
4aa0a1f7 | 2576 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2577 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 | 2578 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e | 2579 | svp = AvARRAY(svp[0]); |
748a9306 | 2580 | for ( ;ix > 0; ix--) { |
1d7c1841 | 2581 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 | 2582 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2583 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2584 | || *name == '&') /* anonymous code? */ | |
2585 | { | |
2586 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2587 | } |
2588 | else { /* our own lexical */ | |
2589 | if (*name == '@') | |
2590 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2591 | else if (*name == '%') | |
2592 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2593 | else | |
2594 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2595 | SvPADMY_on(sv); | |
2596 | } | |
a0d0e21e | 2597 | } |
1d7c1841 GS |
2598 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2599 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); | |
2600 | } | |
a0d0e21e | 2601 | else { |
748a9306 | 2602 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2603 | SvPADTMP_on(sv); |
2604 | } | |
2605 | } | |
2606 | av = newAV(); /* will be @_ */ | |
2607 | av_extend(av, 0); | |
2608 | av_store(newpad, 0, (SV*)av); | |
2609 | AvFLAGS(av) = AVf_REIFY; | |
2610 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2611 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2612 | svp = AvARRAY(padlist); |
2613 | } | |
2614 | } | |
6d4ff0d2 MB |
2615 | #ifdef USE_THREADS |
2616 | if (!hasargs) { | |
533c011a | 2617 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2618 | |
93965878 | 2619 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2620 | if (items) { |
2621 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2622 | EXTEND(SP, items); |
2623 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2624 | SP += items; | |
6d4ff0d2 MB |
2625 | PUTBACK ; |
2626 | } | |
2627 | } | |
2628 | #endif /* USE_THREADS */ | |
1d7c1841 | 2629 | SAVEVPTR(PL_curpad); |
3280af22 | 2630 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 MB |
2631 | #ifndef USE_THREADS |
2632 | if (hasargs) | |
2633 | #endif /* USE_THREADS */ | |
2634 | { | |
2635 | AV* av; | |
a0d0e21e LW |
2636 | SV** ary; |
2637 | ||
77a005ab | 2638 | #if 0 |
bf49b057 | 2639 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2640 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2641 | #endif |
3280af22 | 2642 | av = (AV*)PL_curpad[0]; |
221373f0 GS |
2643 | if (AvREAL(av)) { |
2644 | /* @_ is normally not REAL--this should only ever | |
2645 | * happen when DB::sub() calls things that modify @_ */ | |
2646 | av_clear(av); | |
2647 | AvREAL_off(av); | |
2648 | AvREIFY_on(av); | |
2649 | } | |
6d4ff0d2 | 2650 | #ifndef USE_THREADS |
3280af22 NIS |
2651 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2652 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2653 | #endif /* USE_THREADS */ |
2654 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2655 | ++MARK; |
2656 | ||
2657 | if (items > AvMAX(av) + 1) { | |
2658 | ary = AvALLOC(av); | |
2659 | if (AvARRAY(av) != ary) { | |
2660 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2661 | SvPVX(av) = (char*)ary; | |
2662 | } | |
2663 | if (items > AvMAX(av) + 1) { | |
2664 | AvMAX(av) = items - 1; | |
2665 | Renew(ary,items,SV*); | |
2666 | AvALLOC(av) = ary; | |
2667 | SvPVX(av) = (char*)ary; | |
2668 | } | |
2669 | } | |
2670 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2671 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2672 | |
2673 | while (items--) { | |
2674 | if (*MARK) | |
2675 | SvTEMP_off(*MARK); | |
2676 | MARK++; | |
2677 | } | |
2678 | } | |
4a925ff6 GS |
2679 | /* warning must come *after* we fully set up the context |
2680 | * stuff so that __WARN__ handlers can safely dounwind() | |
2681 | * if they want to | |
2682 | */ | |
2683 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2684 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2685 | sub_crush_depth(cv); | |
77a005ab | 2686 | #if 0 |
bf49b057 | 2687 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2688 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2689 | #endif |
a0d0e21e LW |
2690 | RETURNOP(CvSTART(cv)); |
2691 | } | |
2692 | } | |
2693 | ||
44a8e56a | 2694 | void |
864dbfa3 | 2695 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2696 | { |
2697 | if (CvANON(cv)) | |
cea2e8a9 | 2698 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2699 | else { |
2700 | SV* tmpstr = sv_newmortal(); | |
2701 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
cea2e8a9 | 2702 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2703 | SvPVX(tmpstr)); |
44a8e56a | 2704 | } |
2705 | } | |
2706 | ||
a0d0e21e LW |
2707 | PP(pp_aelem) |
2708 | { | |
4e35701f | 2709 | djSP; |
a0d0e21e | 2710 | SV** svp; |
748a9306 | 2711 | I32 elem = POPi; |
68dc0745 | 2712 | AV* av = (AV*)POPs; |
533c011a NIS |
2713 | U32 lval = PL_op->op_flags & OPf_MOD; |
2714 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2715 | SV *sv; |
a0d0e21e | 2716 | |
748a9306 | 2717 | if (elem > 0) |
3280af22 | 2718 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2719 | if (SvTYPE(av) != SVt_PVAV) |
2720 | RETPUSHUNDEF; | |
68dc0745 | 2721 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2722 | if (lval) { |
3280af22 | 2723 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2724 | SV* lv; |
2725 | if (!defer) | |
cea2e8a9 | 2726 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 | 2727 | lv = sv_newmortal(); |
2728 | sv_upgrade(lv, SVt_PVLV); | |
2729 | LvTYPE(lv) = 'y'; | |
2730 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2731 | LvTARG(lv) = SvREFCNT_inc(av); | |
2732 | LvTARGOFF(lv) = elem; | |
2733 | LvTARGLEN(lv) = 1; | |
2734 | PUSHs(lv); | |
2735 | RETURN; | |
2736 | } | |
533c011a | 2737 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2738 | save_aelem(av, elem, svp); |
533c011a NIS |
2739 | else if (PL_op->op_private & OPpDEREF) |
2740 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2741 | } |
3280af22 | 2742 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2743 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2744 | sv = sv_mortalcopy(sv); | |
2745 | PUSHs(sv); | |
a0d0e21e LW |
2746 | RETURN; |
2747 | } | |
2748 | ||
02a9e968 | 2749 | void |
864dbfa3 | 2750 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2751 | { |
2752 | if (SvGMAGICAL(sv)) | |
2753 | mg_get(sv); | |
2754 | if (!SvOK(sv)) { | |
2755 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2756 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc | 2757 | if (SvTYPE(sv) < SVt_RV) |
2758 | sv_upgrade(sv, SVt_RV); | |
2759 | else if (SvTYPE(sv) >= SVt_PV) { | |
2760 | (void)SvOOK_off(sv); | |
2761 | Safefree(SvPVX(sv)); | |
2762 | SvLEN(sv) = SvCUR(sv) = 0; | |
2763 | } | |
68dc0745 | 2764 | switch (to_what) { |
5f05dabc | 2765 | case OPpDEREF_SV: |
8c52afec | 2766 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2767 | break; |
2768 | case OPpDEREF_AV: | |
2769 | SvRV(sv) = (SV*)newAV(); | |
2770 | break; | |
2771 | case OPpDEREF_HV: | |
2772 | SvRV(sv) = (SV*)newHV(); | |
2773 | break; | |
2774 | } | |
02a9e968 CS |
2775 | SvROK_on(sv); |
2776 | SvSETMAGIC(sv); | |
2777 | } | |
2778 | } | |
2779 | ||
a0d0e21e LW |
2780 | PP(pp_method) |
2781 | { | |
4e35701f | 2782 | djSP; |
f5d5a27c CS |
2783 | SV* sv = TOPs; |
2784 | ||
2785 | if (SvROK(sv)) { | |
eda383f2 | 2786 | SV* rsv = SvRV(sv); |
f5d5a27c CS |
2787 | if (SvTYPE(rsv) == SVt_PVCV) { |
2788 | SETs(rsv); | |
2789 | RETURN; | |
2790 | } | |
2791 | } | |
2792 | ||
2793 | SETs(method_common(sv, Null(U32*))); | |
2794 | RETURN; | |
2795 | } | |
2796 | ||
2797 | PP(pp_method_named) | |
2798 | { | |
2799 | djSP; | |
2800 | SV* sv = cSVOP->op_sv; | |
2801 | U32 hash = SvUVX(sv); | |
2802 | ||
2803 | XPUSHs(method_common(sv, &hash)); | |
2804 | RETURN; | |
2805 | } | |
2806 | ||
2807 | STATIC SV * | |
2808 | S_method_common(pTHX_ SV* meth, U32* hashp) | |
2809 | { | |
a0d0e21e LW |
2810 | SV* sv; |
2811 | SV* ob; | |
2812 | GV* gv; | |
56304f61 CS |
2813 | HV* stash; |
2814 | char* name; | |
f5d5a27c | 2815 | STRLEN namelen; |
ac91690f CS |
2816 | char* packname; |
2817 | STRLEN packlen; | |
a0d0e21e | 2818 | |
f5d5a27c | 2819 | name = SvPV(meth, namelen); |
3280af22 | 2820 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c | 2821 | |
16d20bd9 AD |
2822 | if (SvGMAGICAL(sv)) |
2823 | mg_get(sv); | |
a0d0e21e | 2824 | if (SvROK(sv)) |
16d20bd9 | 2825 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2826 | else { |
2827 | GV* iogv; | |
a0d0e21e | 2828 | |
56304f61 | 2829 | packname = Nullch; |
a0d0e21e | 2830 | if (!SvOK(sv) || |
56304f61 | 2831 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2832 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2833 | !(ob=(SV*)GvIO(iogv))) | |
2834 | { | |
834a4ddd | 2835 | if (!packname || |
7e2040f0 | 2836 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 | 2837 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2838 | : !isIDFIRST(*packname) |
2839 | )) | |
2840 | { | |
f5d5a27c CS |
2841 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2842 | SvOK(sv) ? "without a package or object reference" | |
2843 | : "on an undefined value"); | |
834a4ddd | 2844 | } |
56304f61 | 2845 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2846 | goto fetch; |
a0d0e21e | 2847 | } |
3280af22 | 2848 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2849 | } |
2850 | ||
f0d43078 GS |
2851 | if (!ob || !(SvOBJECT(ob) |
2852 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) | |
2853 | && SvOBJECT(ob)))) | |
2854 | { | |
f5d5a27c CS |
2855 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2856 | name); | |
f0d43078 | 2857 | } |
a0d0e21e | 2858 | |
56304f61 | 2859 | stash = SvSTASH(ob); |
a0d0e21e | 2860 | |
ac91690f | 2861 | fetch: |
f5d5a27c CS |
2862 | /* shortcut for simple names */ |
2863 | if (hashp) { | |
2864 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); | |
2865 | if (he) { | |
2866 | gv = (GV*)HeVAL(he); | |
2867 | if (isGV(gv) && GvCV(gv) && | |
2868 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) | |
2869 | return (SV*)GvCV(gv); | |
2870 | } | |
2871 | } | |
2872 | ||
ac91690f | 2873 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2874 | if (!gv) { |
2875 | char* leaf = name; | |
2876 | char* sep = Nullch; | |
2877 | char* p; | |
2878 | ||
2879 | for (p = name; *p; p++) { | |
2880 | if (*p == '\'') | |
2881 | sep = p, leaf = p + 1; | |
2882 | else if (*p == ':' && *(p + 1) == ':') | |
2883 | sep = p, leaf = p + 2; | |
2884 | } | |
2885 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
1d7c1841 | 2886 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 CS |
2887 | packlen = strlen(packname); |
2888 | } | |
2889 | else { | |
2890 | packname = name; | |
2891 | packlen = sep - name; | |
2892 | } | |
f5d5a27c CS |
2893 | Perl_croak(aTHX_ |
2894 | "Can't locate object method \"%s\" via package \"%s\"", | |
2895 | leaf, packname); | |
56304f61 | 2896 | } |
f5d5a27c | 2897 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e | 2898 | } |
22239a37 | 2899 | |
51371543 GS |
2900 | #ifdef USE_THREADS |
2901 | static void | |
2902 | unset_cvowner(pTHXo_ void *cvarg) | |
2903 | { | |
2904 | register CV* cv = (CV *) cvarg; | |
2905 | #ifdef DEBUGGING | |
2906 | dTHR; | |
2907 | #endif /* DEBUGGING */ | |
2908 | ||
bf49b057 | 2909 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 GS |
2910 | thr, cv, SvPEEK((SV*)cv)))); |
2911 | MUTEX_LOCK(CvMUTEXP(cv)); | |
2912 | DEBUG_S(if (CvDEPTH(cv) != 0) | |
bf49b057 | 2913 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 GS |
2914 | CvDEPTH(cv));); |
2915 | assert(thr == CvOWNER(cv)); | |
2916 | CvOWNER(cv) = 0; | |
2917 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2918 | SvREFCNT_dec(cv); | |
2919 | } | |
2920 | #endif /* USE_THREADS */ |