Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a0d0e21e LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Now far ahead the Road has gone, |
13 | * And I must follow, if I can, | |
14 | * Pursuing it with eager feet, | |
15 | * Until it joins some larger way | |
16 | * Where many paths and errands meet. | |
17 | * And whither then? I cannot say. | |
18 | * | |
19 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
a0d0e21e LW |
20 | */ |
21 | ||
166f8a29 DM |
22 | /* This file contains control-oriented pp ("push/pop") functions that |
23 | * execute the opcodes that make up a perl program. A typical pp function | |
24 | * expects to find its arguments on the stack, and usually pushes its | |
25 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
26 | * contains a pointer to the relevant pp_foo() function. | |
27 | * | |
28 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
29 | * alter the flow of control of the program. | |
30 | */ | |
31 | ||
32 | ||
a0d0e21e | 33 | #include "EXTERN.h" |
864dbfa3 | 34 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
35 | #include "perl.h" |
36 | ||
37 | #ifndef WORD_ALIGN | |
dea28490 | 38 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
39 | #endif |
40 | ||
54310121 | 41 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 42 | |
94fcd414 NC |
43 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
44 | ||
a0d0e21e LW |
45 | PP(pp_wantarray) |
46 | { | |
97aff369 | 47 | dVAR; |
39644a26 | 48 | dSP; |
a0d0e21e LW |
49 | I32 cxix; |
50 | EXTEND(SP, 1); | |
51 | ||
52 | cxix = dopoptosub(cxstack_ix); | |
53 | if (cxix < 0) | |
54 | RETPUSHUNDEF; | |
55 | ||
54310121 PP |
56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 PP |
61 | default: |
62 | RETPUSHUNDEF; | |
63 | } | |
a0d0e21e LW |
64 | } |
65 | ||
2cd61cdb IZ |
66 | PP(pp_regcreset) |
67 | { | |
97aff369 | 68 | dVAR; |
2cd61cdb IZ |
69 | /* XXXX Should store the old value to allow for tie/overload - and |
70 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 71 | PL_reginterp_cnt = 0; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
a0d0e21e | 80 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 81 | SV *tmpstr; |
84679df5 | 82 | REGEXP *re = NULL; |
bfed75c6 | 83 | |
4b5a0d1c | 84 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 85 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
86 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
87 | if (PL_op->op_flags & OPf_STACKED) { | |
88 | dMARK; | |
89 | SP = MARK; | |
90 | } | |
91 | else | |
92 | (void)POPs; | |
93 | RETURN; | |
94 | } | |
513629ba | 95 | #endif |
d4b87e75 BM |
96 | |
97 | #define tryAMAGICregexp(rx) \ | |
98 | STMT_START { \ | |
6f1401dc | 99 | SvGETMAGIC(rx); \ |
d4b87e75 BM |
100 | if (SvROK(rx) && SvAMAGIC(rx)) { \ |
101 | SV *sv = AMG_CALLun(rx, regexp); \ | |
102 | if (sv) { \ | |
103 | if (SvROK(sv)) \ | |
104 | sv = SvRV(sv); \ | |
105 | if (SvTYPE(sv) != SVt_REGEXP) \ | |
106 | Perl_croak(aTHX_ "Overloaded qr did not return a REGEXP"); \ | |
107 | rx = sv; \ | |
108 | } \ | |
109 | } \ | |
110 | } STMT_END | |
111 | ||
112 | ||
131b3ad0 DM |
113 | if (PL_op->op_flags & OPf_STACKED) { |
114 | /* multiple args; concatentate them */ | |
115 | dMARK; dORIGMARK; | |
116 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 117 | sv_setpvs(tmpstr, ""); |
131b3ad0 | 118 | while (++MARK <= SP) { |
d4b87e75 | 119 | SV *msv = *MARK; |
79a8d529 | 120 | SV *sv; |
d4b87e75 | 121 | |
79a8d529 | 122 | tryAMAGICregexp(msv); |
d4b87e75 | 123 | |
79a8d529 DM |
124 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) && |
125 | (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign))) | |
126 | { | |
127 | sv_setsv(tmpstr, sv); | |
128 | continue; | |
131b3ad0 | 129 | } |
a9984b10 | 130 | sv_catsv_nomg(tmpstr, msv); |
131b3ad0 DM |
131 | } |
132 | SvSETMAGIC(tmpstr); | |
133 | SP = ORIGMARK; | |
134 | } | |
d4b87e75 | 135 | else { |
131b3ad0 | 136 | tmpstr = POPs; |
d4b87e75 BM |
137 | tryAMAGICregexp(tmpstr); |
138 | } | |
139 | ||
140 | #undef tryAMAGICregexp | |
513629ba | 141 | |
b3eb6a9b | 142 | if (SvROK(tmpstr)) { |
d8f6592e | 143 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 144 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 145 | re = (REGEXP*) sv; |
c277df42 | 146 | } |
d4b87e75 BM |
147 | else if (SvTYPE(tmpstr) == SVt_REGEXP) |
148 | re = (REGEXP*) tmpstr; | |
149 | ||
5c35adbb | 150 | if (re) { |
69dc4b30 FC |
151 | /* The match's LHS's get-magic might need to access this op's reg- |
152 | exp (as is sometimes the case with $'; see bug 70764). So we | |
153 | must call get-magic now before we replace the regexp. Hopeful- | |
154 | ly this hack can be replaced with the approach described at | |
155 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03 | |
156 | /msg122415.html some day. */ | |
455d9033 FC |
157 | if(pm->op_type == OP_MATCH) { |
158 | SV *lhs; | |
159 | const bool was_tainted = PL_tainted; | |
160 | if (pm->op_flags & OPf_STACKED) | |
69dc4b30 | 161 | lhs = TOPs; |
455d9033 FC |
162 | else if (pm->op_private & OPpTARGET_MY) |
163 | lhs = PAD_SV(pm->op_targ); | |
164 | else lhs = DEFSV; | |
165 | SvGETMAGIC(lhs); | |
166 | /* Restore the previous value of PL_tainted (which may have been | |
167 | modified by get-magic), to avoid incorrectly setting the | |
168 | RXf_TAINTED flag further down. */ | |
169 | PL_tainted = was_tainted; | |
170 | } | |
69dc4b30 | 171 | |
f0826785 | 172 | re = reg_temp_copy(NULL, re); |
aaa362c4 | 173 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 174 | PM_SETRE(pm, re); |
c277df42 IZ |
175 | } |
176 | else { | |
f3ec07c7 DM |
177 | STRLEN len = 0; |
178 | const char *t = SvOK(tmpstr) ? SvPV_nomg_const(tmpstr, len) : ""; | |
179 | ||
c737faaf | 180 | re = PM_GETRE(pm); |
14a49a24 | 181 | assert (re != (REGEXP*) &PL_sv_undef); |
c277df42 | 182 | |
20408e3c | 183 | /* Check against the last compiled regexp. */ |
a11c8683 | 184 | if (!re || !RX_PRECOMP(re) || RX_PRELEN(re) != len || |
220fc49f | 185 | memNE(RX_PRECOMP(re), t, len)) |
85aff577 | 186 | { |
07bc277f | 187 | const regexp_engine *eng = re ? RX_ENGINE(re) : NULL; |
c737faaf | 188 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
189 | if (re) { |
190 | ReREFCNT_dec(re); | |
14a49a24 NC |
191 | #ifdef USE_ITHREADS |
192 | PM_SETRE(pm, (REGEXP*) &PL_sv_undef); | |
193 | #else | |
4608196e | 194 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
14a49a24 | 195 | #endif |
1e2e3d02 YO |
196 | } else if (PL_curcop->cop_hints_hash) { |
197 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
198 | "regcomp", 7, 0, 0); | |
199 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
200 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 201 | } |
664e119d | 202 | |
533c011a | 203 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 204 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 205 | |
b9ad30b4 NC |
206 | if (DO_UTF8(tmpstr)) { |
207 | assert (SvUTF8(tmpstr)); | |
208 | } else if (SvUTF8(tmpstr)) { | |
209 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
210 | we're trapped in use 'bytes'? */ | |
211 | /* Make a copy of the octet sequence, but without the flag on, | |
212 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
213 | STRLEN len; | |
214 | const char *const p = SvPV(tmpstr, len); | |
215 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
216 | } | |
f3ec07c7 DM |
217 | else if (SvAMAGIC(tmpstr)) { |
218 | /* make a copy to avoid extra stringifies */ | |
0479a84a | 219 | tmpstr = newSVpvn_flags(t, len, SVs_TEMP | SvUTF8(tmpstr)); |
f3ec07c7 | 220 | } |
c737faaf | 221 | |
a9984b10 FC |
222 | /* If it is gmagical, create a mortal copy, but without calling |
223 | get-magic, as we have already done that. */ | |
224 | if(SvGMAGICAL(tmpstr)) { | |
225 | SV *mortalcopy = sv_newmortal(); | |
226 | sv_setsv_flags(mortalcopy, tmpstr, 0); | |
227 | tmpstr = mortalcopy; | |
228 | } | |
229 | ||
5a8697a7 | 230 | if (eng) |
3ab4a224 | 231 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); |
5a8697a7 | 232 | else |
3ab4a224 | 233 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); |
c737faaf | 234 | |
f86aaa29 | 235 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 236 | inside tie/overload accessors. */ |
c277df42 | 237 | } |
4633a7c4 | 238 | } |
c737faaf YO |
239 | |
240 | re = PM_GETRE(pm); | |
a0d0e21e | 241 | |
72311751 | 242 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
243 | if (PL_tainting) { |
244 | if (PL_tainted) | |
07bc277f | 245 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
72311751 | 246 | else |
07bc277f | 247 | RX_EXTFLAGS(re) &= ~RXf_TAINTED; |
72311751 GS |
248 | } |
249 | #endif | |
250 | ||
220fc49f | 251 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 252 | pm = PL_curpm; |
a0d0e21e | 253 | |
c737faaf YO |
254 | |
255 | #if !defined(USE_ITHREADS) | |
256 | /* can't change the optree at runtime either */ | |
257 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 258 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 259 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 260 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 261 | } |
c737faaf | 262 | #endif |
a0d0e21e LW |
263 | RETURN; |
264 | } | |
265 | ||
266 | PP(pp_substcont) | |
267 | { | |
97aff369 | 268 | dVAR; |
39644a26 | 269 | dSP; |
c09156bb | 270 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
271 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
272 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
273 | register char *s = cx->sb_s; |
274 | register char *m = cx->sb_m; | |
275 | char *orig = cx->sb_orig; | |
901017d6 | 276 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 277 | SV *nsv = NULL; |
988e6e7e | 278 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
279 | |
280 | PERL_ASYNC_CHECK(); | |
281 | ||
988e6e7e | 282 | if(old != rx) { |
bfed75c6 | 283 | if(old) |
988e6e7e | 284 | ReREFCNT_dec(old); |
d6106309 | 285 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
286 | } |
287 | ||
d9f97599 | 288 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 289 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 290 | |
a0d0e21e | 291 | if (cx->sb_iters++) { |
a3b680e6 | 292 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 293 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 294 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 295 | |
447ee134 DM |
296 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
297 | ||
48c036b1 GS |
298 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
299 | cx->sb_rxtainted |= 2; | |
447ee134 | 300 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
301 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
302 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
303 | |
304 | /* Are we done */ | |
2c296965 YO |
305 | if (CxONCE(cx) || s < orig || |
306 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
307 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
308 | ((cx->sb_rflags & REXEC_COPY_STR) | |
309 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
310 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 311 | { |
823a54a3 | 312 | SV * const targ = cx->sb_targ; |
748a9306 | 313 | |
078c425b JH |
314 | assert(cx->sb_strend >= s); |
315 | if(cx->sb_strend > s) { | |
316 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
317 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
318 | else | |
319 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
320 | } | |
48c036b1 | 321 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 322 | |
f8c7b90f | 323 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
324 | if (SvIsCOW(targ)) { |
325 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
326 | } else | |
327 | #endif | |
328 | { | |
8bd4d4c5 | 329 | SvPV_free(targ); |
ed252734 | 330 | } |
f880fe2f | 331 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
332 | SvCUR_set(targ, SvCUR(dstr)); |
333 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
334 | if (DO_UTF8(dstr)) |
335 | SvUTF8_on(targ); | |
6136c704 | 336 | SvPV_set(dstr, NULL); |
48c036b1 GS |
337 | |
338 | TAINT_IF(cx->sb_rxtainted & 1); | |
4f4d7508 DC |
339 | if (pm->op_pmflags & PMf_NONDESTRUCT) |
340 | PUSHs(targ); | |
341 | else | |
342 | mPUSHi(saviters - 1); | |
48c036b1 | 343 | |
ffc61ed2 | 344 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 345 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 346 | SvSETMAGIC(targ); |
9212bbba | 347 | SvTAINT(targ); |
5cd24f17 | 348 | |
4633a7c4 | 349 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
350 | POPSUBST(cx); |
351 | RETURNOP(pm->op_next); | |
352 | } | |
8e5e9ebe | 353 | cx->sb_iters = saviters; |
a0d0e21e | 354 | } |
07bc277f | 355 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
356 | m = s; |
357 | s = orig; | |
07bc277f | 358 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
359 | s = orig + (m - s); |
360 | cx->sb_strend = s + (cx->sb_strend - m); | |
361 | } | |
07bc277f | 362 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 363 | if (m > s) { |
bfed75c6 | 364 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
365 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
366 | else | |
367 | sv_catpvn(dstr, s, m-s); | |
368 | } | |
07bc277f | 369 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 370 | { /* Update the pos() information. */ |
44f8325f | 371 | SV * const sv = cx->sb_targ; |
084916e3 | 372 | MAGIC *mg; |
7a7f3e45 | 373 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 374 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 375 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 376 | if (SvIsCOW(sv)) |
d83f0a82 NC |
377 | sv_force_normal_flags(sv, 0); |
378 | #endif | |
379 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
380 | NULL, 0); | |
084916e3 | 381 | } |
ce474962 | 382 | mg->mg_len = m - orig; |
084916e3 | 383 | } |
988e6e7e | 384 | if (old != rx) |
d6106309 | 385 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
386 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
387 | rxres_save(&cx->sb_rxres, rx); | |
af9838cc | 388 | PL_curpm = pm; |
29f2e912 | 389 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
390 | } |
391 | ||
c90c0ff4 | 392 | void |
864dbfa3 | 393 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 PP |
394 | { |
395 | UV *p = (UV*)*rsp; | |
396 | U32 i; | |
7918f24d NC |
397 | |
398 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 399 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 400 | |
07bc277f | 401 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 402 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 403 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 404 | #else |
07bc277f | 405 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 406 | #endif |
c90c0ff4 | 407 | if (!p) |
a02a5408 | 408 | Newx(p, i, UV); |
c90c0ff4 PP |
409 | else |
410 | Renew(p, i, UV); | |
411 | *rsp = (void*)p; | |
412 | } | |
413 | ||
07bc277f | 414 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 415 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 416 | |
f8c7b90f | 417 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
418 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
419 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
420 | #endif |
421 | ||
07bc277f | 422 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 423 | |
07bc277f NC |
424 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
425 | *p++ = (UV)RX_SUBLEN(rx); | |
426 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
427 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
428 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 PP |
429 | } |
430 | } | |
431 | ||
9c105995 NC |
432 | static void |
433 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 PP |
434 | { |
435 | UV *p = (UV*)*rsp; | |
436 | U32 i; | |
7918f24d NC |
437 | |
438 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 439 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 440 | |
ed252734 | 441 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 442 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 PP |
443 | *p++ = 0; |
444 | ||
f8c7b90f | 445 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
446 | if (RX_SAVED_COPY(rx)) |
447 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
448 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
449 | *p++ = 0; |
450 | #endif | |
451 | ||
07bc277f | 452 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 453 | |
07bc277f NC |
454 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
455 | RX_SUBLEN(rx) = (I32)(*p++); | |
456 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
457 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
458 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 PP |
459 | } |
460 | } | |
461 | ||
9c105995 NC |
462 | static void |
463 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 464 | { |
44f8325f | 465 | UV * const p = (UV*)*rsp; |
7918f24d NC |
466 | |
467 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 468 | PERL_UNUSED_CONTEXT; |
c90c0ff4 PP |
469 | |
470 | if (p) { | |
94010e71 NC |
471 | #ifdef PERL_POISON |
472 | void *tmp = INT2PTR(char*,*p); | |
473 | Safefree(tmp); | |
474 | if (*p) | |
7e337ee0 | 475 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 476 | #else |
56431972 | 477 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 478 | #endif |
f8c7b90f | 479 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
480 | if (p[1]) { |
481 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
482 | } | |
483 | #endif | |
c90c0ff4 | 484 | Safefree(p); |
4608196e | 485 | *rsp = NULL; |
c90c0ff4 PP |
486 | } |
487 | } | |
488 | ||
a0d0e21e LW |
489 | PP(pp_formline) |
490 | { | |
97aff369 | 491 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 492 | register SV * const tmpForm = *++MARK; |
dea28490 | 493 | register U32 *fpc; |
a0d0e21e | 494 | register char *t; |
245d4a47 | 495 | const char *f; |
a0d0e21e | 496 | register I32 arg; |
c445ea15 AL |
497 | register SV *sv = NULL; |
498 | const char *item = NULL; | |
9c5ffd7c JH |
499 | I32 itemsize = 0; |
500 | I32 fieldsize = 0; | |
a0d0e21e | 501 | I32 lines = 0; |
c445ea15 AL |
502 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
503 | const char *chophere = NULL; | |
504 | char *linemark = NULL; | |
65202027 | 505 | NV value; |
9c5ffd7c | 506 | bool gotsome = FALSE; |
a0d0e21e | 507 | STRLEN len; |
823a54a3 | 508 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 509 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
510 | bool item_is_utf8 = FALSE; |
511 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 512 | SV * nsv = NULL; |
cbbf8932 | 513 | OP * parseres = NULL; |
bfed75c6 | 514 | const char *fmt; |
a0d0e21e | 515 | |
76e3520e | 516 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
517 | if (SvREADONLY(tmpForm)) { |
518 | SvREADONLY_off(tmpForm); | |
a1b95068 | 519 | parseres = doparseform(tmpForm); |
445b3f51 GS |
520 | SvREADONLY_on(tmpForm); |
521 | } | |
522 | else | |
a1b95068 LW |
523 | parseres = doparseform(tmpForm); |
524 | if (parseres) | |
525 | return parseres; | |
a0d0e21e | 526 | } |
3280af22 | 527 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
528 | if (DO_UTF8(PL_formtarget)) |
529 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 530 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 531 | t += len; |
245d4a47 | 532 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 533 | /* need to jump to the next word */ |
245d4a47 | 534 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
535 | |
536 | for (;;) { | |
537 | DEBUG_f( { | |
bfed75c6 | 538 | const char *name = "???"; |
a0d0e21e LW |
539 | arg = -1; |
540 | switch (*fpc) { | |
541 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
542 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
543 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
544 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
545 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
546 | ||
547 | case FF_CHECKNL: name = "CHECKNL"; break; | |
548 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
549 | case FF_SPACE: name = "SPACE"; break; | |
550 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
551 | case FF_ITEM: name = "ITEM"; break; | |
552 | case FF_CHOP: name = "CHOP"; break; | |
553 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
554 | case FF_NEWLINE: name = "NEWLINE"; break; | |
555 | case FF_MORE: name = "MORE"; break; | |
556 | case FF_LINEMARK: name = "LINEMARK"; break; | |
557 | case FF_END: name = "END"; break; | |
bfed75c6 | 558 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 559 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
560 | } |
561 | if (arg >= 0) | |
bf49b057 | 562 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 563 | else |
bf49b057 | 564 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 565 | } ); |
a0d0e21e LW |
566 | switch (*fpc++) { |
567 | case FF_LINEMARK: | |
568 | linemark = t; | |
a0d0e21e LW |
569 | lines++; |
570 | gotsome = FALSE; | |
571 | break; | |
572 | ||
573 | case FF_LITERAL: | |
574 | arg = *fpc++; | |
1bd51a4c | 575 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 576 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
577 | *t = '\0'; |
578 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
579 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 580 | f += arg; |
1bd51a4c IH |
581 | break; |
582 | } | |
583 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 584 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 585 | *t = '\0'; |
7bf79863 | 586 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
587 | t = SvEND(PL_formtarget); |
588 | targ_is_utf8 = TRUE; | |
589 | } | |
a0d0e21e LW |
590 | while (arg--) |
591 | *t++ = *f++; | |
592 | break; | |
593 | ||
594 | case FF_SKIP: | |
595 | f += *fpc++; | |
596 | break; | |
597 | ||
598 | case FF_FETCH: | |
599 | arg = *fpc++; | |
600 | f += arg; | |
601 | fieldsize = arg; | |
602 | ||
603 | if (MARK < SP) | |
604 | sv = *++MARK; | |
605 | else { | |
3280af22 | 606 | sv = &PL_sv_no; |
a2a5de95 | 607 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
608 | } |
609 | break; | |
610 | ||
611 | case FF_CHECKNL: | |
5a34cab7 NC |
612 | { |
613 | const char *send; | |
614 | const char *s = item = SvPV_const(sv, len); | |
615 | itemsize = len; | |
616 | if (DO_UTF8(sv)) { | |
617 | itemsize = sv_len_utf8(sv); | |
618 | if (itemsize != (I32)len) { | |
619 | I32 itembytes; | |
620 | if (itemsize > fieldsize) { | |
621 | itemsize = fieldsize; | |
622 | itembytes = itemsize; | |
623 | sv_pos_u2b(sv, &itembytes, 0); | |
624 | } | |
625 | else | |
626 | itembytes = len; | |
627 | send = chophere = s + itembytes; | |
628 | while (s < send) { | |
629 | if (*s & ~31) | |
630 | gotsome = TRUE; | |
631 | else if (*s == '\n') | |
632 | break; | |
633 | s++; | |
634 | } | |
635 | item_is_utf8 = TRUE; | |
636 | itemsize = s - item; | |
637 | sv_pos_b2u(sv, &itemsize); | |
638 | break; | |
a0ed51b3 | 639 | } |
a0ed51b3 | 640 | } |
5a34cab7 NC |
641 | item_is_utf8 = FALSE; |
642 | if (itemsize > fieldsize) | |
643 | itemsize = fieldsize; | |
644 | send = chophere = s + itemsize; | |
645 | while (s < send) { | |
646 | if (*s & ~31) | |
647 | gotsome = TRUE; | |
648 | else if (*s == '\n') | |
649 | break; | |
650 | s++; | |
651 | } | |
652 | itemsize = s - item; | |
653 | break; | |
a0ed51b3 | 654 | } |
a0d0e21e LW |
655 | |
656 | case FF_CHECKCHOP: | |
5a34cab7 NC |
657 | { |
658 | const char *s = item = SvPV_const(sv, len); | |
659 | itemsize = len; | |
660 | if (DO_UTF8(sv)) { | |
661 | itemsize = sv_len_utf8(sv); | |
662 | if (itemsize != (I32)len) { | |
663 | I32 itembytes; | |
664 | if (itemsize <= fieldsize) { | |
665 | const char *send = chophere = s + itemsize; | |
666 | while (s < send) { | |
667 | if (*s == '\r') { | |
668 | itemsize = s - item; | |
a0ed51b3 | 669 | chophere = s; |
a0ed51b3 | 670 | break; |
5a34cab7 NC |
671 | } |
672 | if (*s++ & ~31) | |
a0ed51b3 | 673 | gotsome = TRUE; |
a0ed51b3 | 674 | } |
a0ed51b3 | 675 | } |
5a34cab7 NC |
676 | else { |
677 | const char *send; | |
678 | itemsize = fieldsize; | |
679 | itembytes = itemsize; | |
680 | sv_pos_u2b(sv, &itembytes, 0); | |
681 | send = chophere = s + itembytes; | |
682 | while (s < send || (s == send && isSPACE(*s))) { | |
683 | if (isSPACE(*s)) { | |
684 | if (chopspace) | |
685 | chophere = s; | |
686 | if (*s == '\r') | |
687 | break; | |
688 | } | |
689 | else { | |
690 | if (*s & ~31) | |
691 | gotsome = TRUE; | |
692 | if (strchr(PL_chopset, *s)) | |
693 | chophere = s + 1; | |
694 | } | |
695 | s++; | |
696 | } | |
697 | itemsize = chophere - item; | |
698 | sv_pos_b2u(sv, &itemsize); | |
699 | } | |
700 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
701 | break; |
702 | } | |
a0d0e21e | 703 | } |
5a34cab7 NC |
704 | item_is_utf8 = FALSE; |
705 | if (itemsize <= fieldsize) { | |
706 | const char *const send = chophere = s + itemsize; | |
707 | while (s < send) { | |
708 | if (*s == '\r') { | |
709 | itemsize = s - item; | |
a0d0e21e | 710 | chophere = s; |
a0d0e21e | 711 | break; |
5a34cab7 NC |
712 | } |
713 | if (*s++ & ~31) | |
a0d0e21e | 714 | gotsome = TRUE; |
a0d0e21e | 715 | } |
a0d0e21e | 716 | } |
5a34cab7 NC |
717 | else { |
718 | const char *send; | |
719 | itemsize = fieldsize; | |
720 | send = chophere = s + itemsize; | |
721 | while (s < send || (s == send && isSPACE(*s))) { | |
722 | if (isSPACE(*s)) { | |
723 | if (chopspace) | |
724 | chophere = s; | |
725 | if (*s == '\r') | |
726 | break; | |
727 | } | |
728 | else { | |
729 | if (*s & ~31) | |
730 | gotsome = TRUE; | |
731 | if (strchr(PL_chopset, *s)) | |
732 | chophere = s + 1; | |
733 | } | |
734 | s++; | |
735 | } | |
736 | itemsize = chophere - item; | |
737 | } | |
738 | break; | |
a0d0e21e | 739 | } |
a0d0e21e LW |
740 | |
741 | case FF_SPACE: | |
742 | arg = fieldsize - itemsize; | |
743 | if (arg) { | |
744 | fieldsize -= arg; | |
745 | while (arg-- > 0) | |
746 | *t++ = ' '; | |
747 | } | |
748 | break; | |
749 | ||
750 | case FF_HALFSPACE: | |
751 | arg = fieldsize - itemsize; | |
752 | if (arg) { | |
753 | arg /= 2; | |
754 | fieldsize -= arg; | |
755 | while (arg-- > 0) | |
756 | *t++ = ' '; | |
757 | } | |
758 | break; | |
759 | ||
760 | case FF_ITEM: | |
5a34cab7 NC |
761 | { |
762 | const char *s = item; | |
763 | arg = itemsize; | |
764 | if (item_is_utf8) { | |
765 | if (!targ_is_utf8) { | |
766 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
767 | *t = '\0'; | |
7bf79863 KW |
768 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
769 | fudge + 1); | |
5a34cab7 NC |
770 | t = SvEND(PL_formtarget); |
771 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 772 | } |
5a34cab7 NC |
773 | while (arg--) { |
774 | if (UTF8_IS_CONTINUED(*s)) { | |
775 | STRLEN skip = UTF8SKIP(s); | |
776 | switch (skip) { | |
777 | default: | |
778 | Move(s,t,skip,char); | |
779 | s += skip; | |
780 | t += skip; | |
781 | break; | |
782 | case 7: *t++ = *s++; | |
783 | case 6: *t++ = *s++; | |
784 | case 5: *t++ = *s++; | |
785 | case 4: *t++ = *s++; | |
786 | case 3: *t++ = *s++; | |
787 | case 2: *t++ = *s++; | |
788 | case 1: *t++ = *s++; | |
789 | } | |
790 | } | |
791 | else { | |
792 | if ( !((*t++ = *s++) & ~31) ) | |
793 | t[-1] = ' '; | |
794 | } | |
a0ed51b3 | 795 | } |
5a34cab7 | 796 | break; |
a0ed51b3 | 797 | } |
5a34cab7 NC |
798 | if (targ_is_utf8 && !item_is_utf8) { |
799 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
800 | *t = '\0'; | |
801 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
802 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 803 | #ifdef EBCDIC |
901017d6 | 804 | const int ch = *t; |
5a34cab7 | 805 | if (iscntrl(ch)) |
78da4d13 | 806 | #else |
5a34cab7 | 807 | if (!(*t & ~31)) |
78da4d13 | 808 | #endif |
5a34cab7 NC |
809 | *t = ' '; |
810 | } | |
811 | break; | |
78da4d13 | 812 | } |
5a34cab7 | 813 | while (arg--) { |
9d116dd7 | 814 | #ifdef EBCDIC |
901017d6 | 815 | const int ch = *t++ = *s++; |
5a34cab7 | 816 | if (iscntrl(ch)) |
a0d0e21e | 817 | #else |
5a34cab7 | 818 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 819 | #endif |
5a34cab7 NC |
820 | t[-1] = ' '; |
821 | } | |
822 | break; | |
a0d0e21e | 823 | } |
a0d0e21e LW |
824 | |
825 | case FF_CHOP: | |
5a34cab7 NC |
826 | { |
827 | const char *s = chophere; | |
828 | if (chopspace) { | |
af68e756 | 829 | while (isSPACE(*s)) |
5a34cab7 NC |
830 | s++; |
831 | } | |
832 | sv_chop(sv,s); | |
833 | SvSETMAGIC(sv); | |
834 | break; | |
a0d0e21e | 835 | } |
a0d0e21e | 836 | |
a1b95068 LW |
837 | case FF_LINESNGL: |
838 | chopspace = 0; | |
a0d0e21e | 839 | case FF_LINEGLOB: |
5a34cab7 | 840 | { |
e32383e2 | 841 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 842 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 843 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 844 | itemsize = len; |
5a34cab7 | 845 | if (itemsize) { |
e8e72d41 | 846 | STRLEN to_copy = itemsize; |
5a34cab7 | 847 | const char *const send = s + len; |
35c6393c | 848 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
849 | U8 *tmp = NULL; |
850 | ||
5a34cab7 NC |
851 | gotsome = TRUE; |
852 | chophere = s + itemsize; | |
853 | while (s < send) { | |
854 | if (*s++ == '\n') { | |
855 | if (oneline) { | |
e8e72d41 | 856 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
857 | chophere = s; |
858 | break; | |
859 | } else { | |
860 | if (s == send) { | |
861 | itemsize--; | |
e8e72d41 | 862 | to_copy--; |
5a34cab7 NC |
863 | } else |
864 | lines++; | |
865 | } | |
1bd51a4c | 866 | } |
a0d0e21e | 867 | } |
e8e72d41 | 868 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 869 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
870 | SvCUR_set(PL_formtarget, |
871 | t - SvPVX_const(PL_formtarget)); | |
872 | } else { | |
873 | if (item_is_utf8 && !targ_is_utf8) { | |
874 | /* Upgrade targ to UTF8, and then we reduce it to | |
875 | a problem we have a simple solution for. */ | |
876 | SvCUR_set(PL_formtarget, | |
877 | t - SvPVX_const(PL_formtarget)); | |
878 | targ_is_utf8 = TRUE; | |
879 | /* Don't need get magic. */ | |
7bf79863 | 880 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
881 | } else { |
882 | SvCUR_set(PL_formtarget, | |
883 | t - SvPVX_const(PL_formtarget)); | |
884 | } | |
e8e72d41 NC |
885 | |
886 | /* Easy. They agree. */ | |
887 | assert (item_is_utf8 == targ_is_utf8); | |
888 | } | |
889 | SvGROW(PL_formtarget, | |
890 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 891 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
892 | |
893 | Copy(source, t, to_copy, char); | |
894 | t += to_copy; | |
895 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 896 | if (item_is_utf8) { |
e8e72d41 NC |
897 | if (SvGMAGICAL(sv)) { |
898 | /* Mustn't call sv_pos_b2u() as it does a second | |
899 | mg_get(). Is this a bug? Do we need a _flags() | |
900 | variant? */ | |
901 | itemsize = utf8_length(source, source + itemsize); | |
902 | } else { | |
903 | sv_pos_b2u(sv, &itemsize); | |
904 | } | |
905 | assert(!tmp); | |
906 | } else if (tmp) { | |
907 | Safefree(tmp); | |
f3f2f1a3 | 908 | } |
a0d0e21e | 909 | } |
5a34cab7 | 910 | break; |
a0d0e21e | 911 | } |
a0d0e21e | 912 | |
a1b95068 LW |
913 | case FF_0DECIMAL: |
914 | arg = *fpc++; | |
915 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
916 | fmt = (const char *) |
917 | ((arg & 256) ? | |
918 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 919 | #else |
10edeb5d JH |
920 | fmt = (const char *) |
921 | ((arg & 256) ? | |
922 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 LW |
923 | #endif |
924 | goto ff_dec; | |
a0d0e21e | 925 | case FF_DECIMAL: |
a0d0e21e | 926 | arg = *fpc++; |
65202027 | 927 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
928 | fmt = (const char *) |
929 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 930 | #else |
10edeb5d JH |
931 | fmt = (const char *) |
932 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 933 | #endif |
a1b95068 | 934 | ff_dec: |
784707d5 JP |
935 | /* If the field is marked with ^ and the value is undefined, |
936 | blank it out. */ | |
784707d5 JP |
937 | if ((arg & 512) && !SvOK(sv)) { |
938 | arg = fieldsize; | |
939 | while (arg--) | |
940 | *t++ = ' '; | |
941 | break; | |
942 | } | |
943 | gotsome = TRUE; | |
944 | value = SvNV(sv); | |
a1b95068 | 945 | /* overflow evidence */ |
bfed75c6 | 946 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 LW |
947 | arg = fieldsize; |
948 | while (arg--) | |
949 | *t++ = '#'; | |
950 | break; | |
951 | } | |
784707d5 JP |
952 | /* Formats aren't yet marked for locales, so assume "yes". */ |
953 | { | |
954 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 955 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
956 | RESTORE_NUMERIC_STANDARD(); |
957 | } | |
958 | t += fieldsize; | |
959 | break; | |
a1b95068 | 960 | |
a0d0e21e LW |
961 | case FF_NEWLINE: |
962 | f++; | |
963 | while (t-- > linemark && *t == ' ') ; | |
964 | t++; | |
965 | *t++ = '\n'; | |
966 | break; | |
967 | ||
968 | case FF_BLANK: | |
969 | arg = *fpc++; | |
970 | if (gotsome) { | |
971 | if (arg) { /* repeat until fields exhausted? */ | |
972 | *t = '\0'; | |
b15aece3 | 973 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 974 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
975 | if (targ_is_utf8) |
976 | SvUTF8_on(PL_formtarget); | |
3280af22 | 977 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
978 | SP = ORIGMARK; |
979 | RETURNOP(cLISTOP->op_first); | |
980 | } | |
981 | } | |
982 | else { | |
983 | t = linemark; | |
984 | lines--; | |
985 | } | |
986 | break; | |
987 | ||
988 | case FF_MORE: | |
5a34cab7 NC |
989 | { |
990 | const char *s = chophere; | |
991 | const char *send = item + len; | |
992 | if (chopspace) { | |
af68e756 | 993 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 994 | s++; |
a0d0e21e | 995 | } |
5a34cab7 NC |
996 | if (s < send) { |
997 | char *s1; | |
998 | arg = fieldsize - itemsize; | |
999 | if (arg) { | |
1000 | fieldsize -= arg; | |
1001 | while (arg-- > 0) | |
1002 | *t++ = ' '; | |
1003 | } | |
1004 | s1 = t - 3; | |
1005 | if (strnEQ(s1," ",3)) { | |
1006 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
1007 | s1--; | |
1008 | } | |
1009 | *s1++ = '.'; | |
1010 | *s1++ = '.'; | |
1011 | *s1++ = '.'; | |
a0d0e21e | 1012 | } |
5a34cab7 | 1013 | break; |
a0d0e21e | 1014 | } |
a0d0e21e LW |
1015 | case FF_END: |
1016 | *t = '\0'; | |
b15aece3 | 1017 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1018 | if (targ_is_utf8) |
1019 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1020 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1021 | SP = ORIGMARK; |
1022 | RETPUSHYES; | |
1023 | } | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | PP(pp_grepstart) | |
1028 | { | |
27da23d5 | 1029 | dVAR; dSP; |
a0d0e21e LW |
1030 | SV *src; |
1031 | ||
3280af22 | 1032 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1033 | (void)POPMARK; |
54310121 | 1034 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1035 | mXPUSHi(0); |
533c011a | 1036 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1037 | } |
3280af22 | 1038 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
1039 | pp_pushmark(); /* push dst */ |
1040 | pp_pushmark(); /* push src */ | |
d343c3ef | 1041 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1042 | |
1043 | SAVETMPS; | |
59f00321 RGS |
1044 | if (PL_op->op_private & OPpGREP_LEX) |
1045 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1046 | else | |
1047 | SAVE_DEFSV; | |
d343c3ef | 1048 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1049 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1050 | |
3280af22 | 1051 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1052 | SvTEMP_off(src); |
59f00321 RGS |
1053 | if (PL_op->op_private & OPpGREP_LEX) |
1054 | PAD_SVl(PL_op->op_targ) = src; | |
1055 | else | |
414bf5ae | 1056 | DEFSV_set(src); |
a0d0e21e LW |
1057 | |
1058 | PUTBACK; | |
533c011a | 1059 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 1060 | pp_pushmark(); /* push top */ |
533c011a | 1061 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1062 | } |
1063 | ||
a0d0e21e LW |
1064 | PP(pp_mapwhile) |
1065 | { | |
27da23d5 | 1066 | dVAR; dSP; |
f54cb97a | 1067 | const I32 gimme = GIMME_V; |
544f3153 | 1068 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1069 | I32 count; |
1070 | I32 shift; | |
1071 | SV** src; | |
ac27b0f5 | 1072 | SV** dst; |
a0d0e21e | 1073 | |
544f3153 | 1074 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1075 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1076 | |
1077 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1078 | if (items && gimme != G_VOID) { |
544f3153 GS |
1079 | /* might need to make room back there first */ |
1080 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1081 | /* XXX this implementation is very pessimal because the stack | |
1082 | * is repeatedly extended for every set of items. Is possible | |
1083 | * to do this without any stack extension or copying at all | |
1084 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1085 | * (like foreach does). --gsar */ |
544f3153 GS |
1086 | |
1087 | /* everything in the stack after the destination list moves | |
1088 | * towards the end the stack by the amount of room needed */ | |
1089 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1090 | ||
1091 | /* items to shift up (accounting for the moved source pointer) */ | |
1092 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1093 | |
1094 | /* This optimization is by Ben Tilly and it does | |
1095 | * things differently from what Sarathy (gsar) | |
1096 | * is describing. The downside of this optimization is | |
1097 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1098 | * to the Perl stack, but on the other hand this | |
1099 | * shouldn't be a problem. If Sarathy's idea gets | |
1100 | * implemented, this optimization should become | |
1101 | * irrelevant. --jhi */ | |
1102 | if (shift < count) | |
1103 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1104 | |
924508f0 GS |
1105 | EXTEND(SP,shift); |
1106 | src = SP; | |
1107 | dst = (SP += shift); | |
3280af22 NIS |
1108 | PL_markstack_ptr[-1] += shift; |
1109 | *PL_markstack_ptr += shift; | |
544f3153 | 1110 | while (count--) |
a0d0e21e LW |
1111 | *dst-- = *src--; |
1112 | } | |
544f3153 | 1113 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1114 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1115 | if (gimme == G_ARRAY) { |
1116 | while (items-- > 0) | |
1117 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1118 | } | |
bfed75c6 | 1119 | else { |
22023b26 TP |
1120 | /* scalar context: we don't care about which values map returns |
1121 | * (we use undef here). And so we certainly don't want to do mortal | |
1122 | * copies of meaningless values. */ | |
1123 | while (items-- > 0) { | |
b988aa42 | 1124 | (void)POPs; |
22023b26 TP |
1125 | *dst-- = &PL_sv_undef; |
1126 | } | |
1127 | } | |
a0d0e21e | 1128 | } |
d343c3ef | 1129 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1130 | |
1131 | /* All done yet? */ | |
3280af22 | 1132 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1133 | |
1134 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1135 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1136 | (void)POPMARK; /* pop src */ |
3280af22 | 1137 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1138 | (void)POPMARK; /* pop dst */ |
3280af22 | 1139 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1140 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1141 | if (PL_op->op_private & OPpGREP_LEX) { |
1142 | SV* sv = sv_newmortal(); | |
1143 | sv_setiv(sv, items); | |
1144 | PUSHs(sv); | |
1145 | } | |
1146 | else { | |
1147 | dTARGET; | |
1148 | XPUSHi(items); | |
1149 | } | |
a0d0e21e | 1150 | } |
54310121 PP |
1151 | else if (gimme == G_ARRAY) |
1152 | SP += items; | |
a0d0e21e LW |
1153 | RETURN; |
1154 | } | |
1155 | else { | |
1156 | SV *src; | |
1157 | ||
d343c3ef | 1158 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1159 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1160 | |
544f3153 | 1161 | /* set $_ to the new source item */ |
3280af22 | 1162 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1163 | SvTEMP_off(src); |
59f00321 RGS |
1164 | if (PL_op->op_private & OPpGREP_LEX) |
1165 | PAD_SVl(PL_op->op_targ) = src; | |
1166 | else | |
414bf5ae | 1167 | DEFSV_set(src); |
a0d0e21e LW |
1168 | |
1169 | RETURNOP(cLOGOP->op_other); | |
1170 | } | |
1171 | } | |
1172 | ||
a0d0e21e LW |
1173 | /* Range stuff. */ |
1174 | ||
1175 | PP(pp_range) | |
1176 | { | |
97aff369 | 1177 | dVAR; |
a0d0e21e | 1178 | if (GIMME == G_ARRAY) |
1a67a97c | 1179 | return NORMAL; |
538573f7 | 1180 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1181 | return cLOGOP->op_other; |
538573f7 | 1182 | else |
1a67a97c | 1183 | return NORMAL; |
a0d0e21e LW |
1184 | } |
1185 | ||
1186 | PP(pp_flip) | |
1187 | { | |
97aff369 | 1188 | dVAR; |
39644a26 | 1189 | dSP; |
a0d0e21e LW |
1190 | |
1191 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1192 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1193 | } |
1194 | else { | |
1195 | dTOPss; | |
44f8325f | 1196 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1197 | int flip = 0; |
790090df | 1198 | |
bfed75c6 | 1199 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1200 | if (GvIO(PL_last_in_gv)) { |
1201 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1202 | } | |
1203 | else { | |
fafc274c | 1204 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1205 | if (gv && GvSV(gv)) |
1206 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1207 | } |
bfed75c6 AL |
1208 | } else { |
1209 | flip = SvTRUE(sv); | |
1210 | } | |
1211 | if (flip) { | |
a0d0e21e | 1212 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1213 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1214 | sv_setiv(targ, 1); |
3e3baf6d | 1215 | SETs(targ); |
a0d0e21e LW |
1216 | RETURN; |
1217 | } | |
1218 | else { | |
1219 | sv_setiv(targ, 0); | |
924508f0 | 1220 | SP--; |
1a67a97c | 1221 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1222 | } |
1223 | } | |
76f68e9b | 1224 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1225 | SETs(targ); |
1226 | RETURN; | |
1227 | } | |
1228 | } | |
1229 | ||
8e9bbdb9 RGS |
1230 | /* This code tries to decide if "$left .. $right" should use the |
1231 | magical string increment, or if the range is numeric (we make | |
1232 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1233 | ||
1234 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1235 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1236 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1237 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1238 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1239 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1240 | |
a0d0e21e LW |
1241 | PP(pp_flop) |
1242 | { | |
97aff369 | 1243 | dVAR; dSP; |
a0d0e21e LW |
1244 | |
1245 | if (GIMME == G_ARRAY) { | |
1246 | dPOPPOPssrl; | |
86cb7173 | 1247 | |
5b295bef RD |
1248 | SvGETMAGIC(left); |
1249 | SvGETMAGIC(right); | |
a0d0e21e | 1250 | |
8e9bbdb9 | 1251 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1252 | register IV i, j; |
1253 | IV max; | |
4fe3f0fa MHM |
1254 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1255 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1256 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1257 | i = SvIV(left); |
1258 | max = SvIV(right); | |
bbce6d69 | 1259 | if (max >= i) { |
c1ab3db2 AK |
1260 | j = max - i + 1; |
1261 | EXTEND_MORTAL(j); | |
1262 | EXTEND(SP, j); | |
bbce6d69 | 1263 | } |
c1ab3db2 AK |
1264 | else |
1265 | j = 0; | |
1266 | while (j--) { | |
901017d6 | 1267 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1268 | PUSHs(sv); |
1269 | } | |
1270 | } | |
1271 | else { | |
44f8325f | 1272 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1273 | STRLEN len; |
823a54a3 | 1274 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1275 | |
901017d6 | 1276 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1277 | SvPV_force_nolen(sv); |
89ea2908 | 1278 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1279 | XPUSHs(sv); |
b15aece3 | 1280 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1281 | break; |
a0d0e21e LW |
1282 | sv = sv_2mortal(newSVsv(sv)); |
1283 | sv_inc(sv); | |
1284 | } | |
a0d0e21e LW |
1285 | } |
1286 | } | |
1287 | else { | |
1288 | dTOPss; | |
901017d6 | 1289 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1290 | int flop = 0; |
a0d0e21e | 1291 | sv_inc(targ); |
4e3399f9 YST |
1292 | |
1293 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1294 | if (GvIO(PL_last_in_gv)) { | |
1295 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1296 | } | |
1297 | else { | |
fafc274c | 1298 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1299 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1300 | } | |
1301 | } | |
1302 | else { | |
1303 | flop = SvTRUE(sv); | |
1304 | } | |
1305 | ||
1306 | if (flop) { | |
a0d0e21e | 1307 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1308 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1309 | } |
1310 | SETs(targ); | |
1311 | } | |
1312 | ||
1313 | RETURN; | |
1314 | } | |
1315 | ||
1316 | /* Control. */ | |
1317 | ||
27da23d5 | 1318 | static const char * const context_name[] = { |
515afda2 | 1319 | "pseudo-block", |
f31522f3 | 1320 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1321 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1322 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1323 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1324 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1325 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1326 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1327 | "subroutine", |
76753e7f | 1328 | "format", |
515afda2 | 1329 | "eval", |
515afda2 | 1330 | "substitution", |
515afda2 NC |
1331 | }; |
1332 | ||
76e3520e | 1333 | STATIC I32 |
06b5626a | 1334 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1335 | { |
97aff369 | 1336 | dVAR; |
a0d0e21e | 1337 | register I32 i; |
a0d0e21e | 1338 | |
7918f24d NC |
1339 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1340 | ||
a0d0e21e | 1341 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1342 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1343 | switch (CxTYPE(cx)) { |
a0d0e21e | 1344 | case CXt_SUBST: |
a0d0e21e | 1345 | case CXt_SUB: |
7766f137 | 1346 | case CXt_FORMAT: |
a0d0e21e | 1347 | case CXt_EVAL: |
0a753a76 | 1348 | case CXt_NULL: |
a2a5de95 NC |
1349 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1350 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1351 | if (CxTYPE(cx) == CXt_NULL) |
1352 | return -1; | |
1353 | break; | |
c6fdafd0 | 1354 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1355 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1356 | case CXt_LOOP_FOR: |
1357 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1358 | { |
1359 | const char *cx_label = CxLABEL(cx); | |
1360 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1361 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1362 | (long)i, cx_label)); |
a0d0e21e LW |
1363 | continue; |
1364 | } | |
1c98cc53 | 1365 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1366 | return i; |
7e8f1eac | 1367 | } |
a0d0e21e LW |
1368 | } |
1369 | } | |
1370 | return i; | |
1371 | } | |
1372 | ||
0d863452 RH |
1373 | |
1374 | ||
e50aee73 | 1375 | I32 |
864dbfa3 | 1376 | Perl_dowantarray(pTHX) |
e50aee73 | 1377 | { |
97aff369 | 1378 | dVAR; |
f54cb97a | 1379 | const I32 gimme = block_gimme(); |
54310121 PP |
1380 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1381 | } | |
1382 | ||
1383 | I32 | |
864dbfa3 | 1384 | Perl_block_gimme(pTHX) |
54310121 | 1385 | { |
97aff369 | 1386 | dVAR; |
06b5626a | 1387 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1388 | if (cxix < 0) |
46fc3d4c | 1389 | return G_VOID; |
e50aee73 | 1390 | |
54310121 | 1391 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1392 | case G_VOID: |
1393 | return G_VOID; | |
54310121 | 1394 | case G_SCALAR: |
e50aee73 | 1395 | return G_SCALAR; |
54310121 PP |
1396 | case G_ARRAY: |
1397 | return G_ARRAY; | |
1398 | default: | |
cea2e8a9 | 1399 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1400 | /* NOTREACHED */ |
1401 | return 0; | |
54310121 | 1402 | } |
e50aee73 AD |
1403 | } |
1404 | ||
78f9721b SM |
1405 | I32 |
1406 | Perl_is_lvalue_sub(pTHX) | |
1407 | { | |
97aff369 | 1408 | dVAR; |
06b5626a | 1409 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1410 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1411 | ||
bafb2adc NC |
1412 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1413 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1414 | else |
1415 | return 0; | |
1416 | } | |
1417 | ||
76e3520e | 1418 | STATIC I32 |
901017d6 | 1419 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1420 | { |
97aff369 | 1421 | dVAR; |
a0d0e21e | 1422 | I32 i; |
7918f24d NC |
1423 | |
1424 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1425 | ||
a0d0e21e | 1426 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1427 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1428 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1429 | default: |
1430 | continue; | |
1431 | case CXt_EVAL: | |
1432 | case CXt_SUB: | |
7766f137 | 1433 | case CXt_FORMAT: |
1c98cc53 | 1434 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1435 | return i; |
1436 | } | |
1437 | } | |
1438 | return i; | |
1439 | } | |
1440 | ||
76e3520e | 1441 | STATIC I32 |
cea2e8a9 | 1442 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1443 | { |
97aff369 | 1444 | dVAR; |
a0d0e21e | 1445 | I32 i; |
a0d0e21e | 1446 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1447 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1448 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1449 | default: |
1450 | continue; | |
1451 | case CXt_EVAL: | |
1c98cc53 | 1452 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1453 | return i; |
1454 | } | |
1455 | } | |
1456 | return i; | |
1457 | } | |
1458 | ||
76e3520e | 1459 | STATIC I32 |
cea2e8a9 | 1460 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1461 | { |
97aff369 | 1462 | dVAR; |
a0d0e21e | 1463 | I32 i; |
a0d0e21e | 1464 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1465 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1466 | switch (CxTYPE(cx)) { |
a0d0e21e | 1467 | case CXt_SUBST: |
a0d0e21e | 1468 | case CXt_SUB: |
7766f137 | 1469 | case CXt_FORMAT: |
a0d0e21e | 1470 | case CXt_EVAL: |
0a753a76 | 1471 | case CXt_NULL: |
a2a5de95 NC |
1472 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1473 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1474 | if ((CxTYPE(cx)) == CXt_NULL) |
1475 | return -1; | |
1476 | break; | |
c6fdafd0 | 1477 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1478 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1479 | case CXt_LOOP_FOR: |
1480 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1481 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1482 | return i; |
1483 | } | |
1484 | } | |
1485 | return i; | |
1486 | } | |
1487 | ||
0d863452 RH |
1488 | STATIC I32 |
1489 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1490 | { | |
97aff369 | 1491 | dVAR; |
0d863452 RH |
1492 | I32 i; |
1493 | for (i = startingblock; i >= 0; i--) { | |
1494 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1495 | switch (CxTYPE(cx)) { | |
1496 | default: | |
1497 | continue; | |
1498 | case CXt_GIVEN: | |
1c98cc53 | 1499 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1500 | return i; |
3b719c58 NC |
1501 | case CXt_LOOP_PLAIN: |
1502 | assert(!CxFOREACHDEF(cx)); | |
1503 | break; | |
c6fdafd0 | 1504 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1505 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1506 | case CXt_LOOP_FOR: |
0d863452 | 1507 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1508 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1509 | return i; |
1510 | } | |
1511 | } | |
1512 | } | |
1513 | return i; | |
1514 | } | |
1515 | ||
1516 | STATIC I32 | |
1517 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1518 | { | |
97aff369 | 1519 | dVAR; |
0d863452 RH |
1520 | I32 i; |
1521 | for (i = startingblock; i >= 0; i--) { | |
1522 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1523 | switch (CxTYPE(cx)) { | |
1524 | default: | |
1525 | continue; | |
1526 | case CXt_WHEN: | |
1c98cc53 | 1527 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1528 | return i; |
1529 | } | |
1530 | } | |
1531 | return i; | |
1532 | } | |
1533 | ||
a0d0e21e | 1534 | void |
864dbfa3 | 1535 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1536 | { |
97aff369 | 1537 | dVAR; |
a0d0e21e LW |
1538 | I32 optype; |
1539 | ||
1540 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1541 | SV *sv; |
06b5626a | 1542 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1543 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1544 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1545 | switch (CxTYPE(cx)) { |
c90c0ff4 PP |
1546 | case CXt_SUBST: |
1547 | POPSUBST(cx); | |
1548 | continue; /* not break */ | |
a0d0e21e | 1549 | case CXt_SUB: |
b0d9ce38 GS |
1550 | POPSUB(cx,sv); |
1551 | LEAVESUB(sv); | |
a0d0e21e LW |
1552 | break; |
1553 | case CXt_EVAL: | |
1554 | POPEVAL(cx); | |
1555 | break; | |
c6fdafd0 | 1556 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1557 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1558 | case CXt_LOOP_FOR: |
1559 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1560 | POPLOOP(cx); |
1561 | break; | |
0a753a76 | 1562 | case CXt_NULL: |
a0d0e21e | 1563 | break; |
7766f137 GS |
1564 | case CXt_FORMAT: |
1565 | POPFORMAT(cx); | |
1566 | break; | |
a0d0e21e | 1567 | } |
c90c0ff4 | 1568 | cxstack_ix--; |
a0d0e21e | 1569 | } |
1b6737cc | 1570 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1571 | } |
1572 | ||
5a844595 GS |
1573 | void |
1574 | Perl_qerror(pTHX_ SV *err) | |
1575 | { | |
97aff369 | 1576 | dVAR; |
7918f24d NC |
1577 | |
1578 | PERL_ARGS_ASSERT_QERROR; | |
1579 | ||
5a844595 GS |
1580 | if (PL_in_eval) |
1581 | sv_catsv(ERRSV, err); | |
1582 | else if (PL_errors) | |
1583 | sv_catsv(PL_errors, err); | |
1584 | else | |
be2597df | 1585 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1586 | if (PL_parser) |
1587 | ++PL_parser->error_count; | |
5a844595 GS |
1588 | } |
1589 | ||
bb4c52e0 | 1590 | void |
c5df3096 | 1591 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1592 | { |
27da23d5 | 1593 | dVAR; |
c5df3096 | 1594 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1595 | U8 in_eval = PL_in_eval; |
c5df3096 | 1596 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1597 | |
96d9b9cd | 1598 | if (in_eval) { |
a0d0e21e | 1599 | I32 cxix; |
a0d0e21e | 1600 | I32 gimme; |
a0d0e21e | 1601 | |
5a844595 GS |
1602 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1603 | && PL_curstackinfo->si_prev) | |
1604 | { | |
bac4b2ad | 1605 | dounwind(-1); |
d3acc0f7 | 1606 | POPSTACK; |
bac4b2ad | 1607 | } |
e336de0d | 1608 | |
a0d0e21e LW |
1609 | if (cxix >= 0) { |
1610 | I32 optype; | |
b6494f15 | 1611 | SV *namesv; |
35a4481c | 1612 | register PERL_CONTEXT *cx; |
901017d6 | 1613 | SV **newsp; |
a0d0e21e LW |
1614 | |
1615 | if (cxix < cxstack_ix) | |
1616 | dounwind(cxix); | |
1617 | ||
3280af22 | 1618 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1619 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1620 | STRLEN msglen; |
96d9b9cd | 1621 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1622 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1623 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1624 | my_exit(1); |
1625 | } | |
1626 | POPEVAL(cx); | |
b6494f15 | 1627 | namesv = cx->blk_eval.old_namesv; |
a0d0e21e LW |
1628 | |
1629 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1630 | *++newsp = &PL_sv_undef; |
1631 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1632 | |
1633 | LEAVE; | |
748a9306 | 1634 | |
7fb6a879 GS |
1635 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1636 | * XXX it might be better to find a way to avoid messing with | |
1637 | * PL_curcop in save_re_context() instead, but this is a more | |
1638 | * minimal fix --GSAR */ | |
1639 | PL_curcop = cx->blk_oldcop; | |
1640 | ||
7a2e2cd6 | 1641 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1642 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1643 | (void)hv_store(GvHVn(PL_incgv), |
1644 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1645 | &PL_sv_undef, 0); |
27e90453 DM |
1646 | /* note that unlike pp_entereval, pp_require isn't |
1647 | * supposed to trap errors. So now that we've popped the | |
1648 | * EVAL that pp_require pushed, and processed the error | |
1649 | * message, rethrow the error */ | |
9fed9930 NC |
1650 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1651 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1652 | } |
c5df3096 | 1653 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1654 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1655 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1656 | } |
1657 | else { | |
1658 | sv_setsv(ERRSV, exceptsv); | |
1659 | } | |
f39bc417 | 1660 | assert(CxTYPE(cx) == CXt_EVAL); |
febb3a6d | 1661 | PL_restartjmpenv = cx->blk_eval.cur_top_env; |
bb4c52e0 GG |
1662 | PL_restartop = cx->blk_eval.retop; |
1663 | JMPENV_JUMP(3); | |
1664 | /* NOTREACHED */ | |
a0d0e21e LW |
1665 | } |
1666 | } | |
87582a92 | 1667 | |
96d9b9cd | 1668 | write_to_stderr(exceptsv); |
f86702cc PP |
1669 | my_failure_exit(); |
1670 | /* NOTREACHED */ | |
a0d0e21e LW |
1671 | } |
1672 | ||
1673 | PP(pp_xor) | |
1674 | { | |
97aff369 | 1675 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1676 | if (SvTRUE(left) != SvTRUE(right)) |
1677 | RETSETYES; | |
1678 | else | |
1679 | RETSETNO; | |
1680 | } | |
1681 | ||
8dff4fc5 BM |
1682 | /* |
1683 | =for apidoc caller_cx | |
1684 | ||
1685 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1686 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1687 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1688 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1689 | immediately-surrounding Perl code. | |
1690 | ||
1691 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1692 | behalf of the debugger. If the stack frame requested was a sub called by | |
1693 | C<DB::sub>, the return value will be the frame for the call to | |
1694 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1695 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1696 | frame for the sub call itself. | |
1697 | ||
1698 | =cut | |
1699 | */ | |
1700 | ||
1701 | const PERL_CONTEXT * | |
1702 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1703 | { |
a0d0e21e | 1704 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1705 | register const PERL_CONTEXT *cx; |
1706 | register const PERL_CONTEXT *ccstack = cxstack; | |
1707 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1708 | |
a0d0e21e | 1709 | for (;;) { |
2c375eb9 GS |
1710 | /* we may be in a higher stacklevel, so dig down deeper */ |
1711 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1712 | top_si = top_si->si_prev; | |
1713 | ccstack = top_si->si_cxstack; | |
1714 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1715 | } | |
8dff4fc5 BM |
1716 | if (cxix < 0) |
1717 | return NULL; | |
f2a7f298 | 1718 | /* caller() should not report the automatic calls to &DB::sub */ |
1719 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1720 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1721 | count++; |
1722 | if (!count--) | |
1723 | break; | |
2c375eb9 | 1724 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1725 | } |
2c375eb9 GS |
1726 | |
1727 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1728 | if (dbcxp) *dbcxp = cx; |
1729 | ||
7766f137 | 1730 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1731 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1732 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1733 | field below is defined for any cx. */ |
f2a7f298 | 1734 | /* caller() should not report the automatic calls to &DB::sub */ |
1735 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1736 | cx = &ccstack[dbcxix]; |
06a5b730 PP |
1737 | } |
1738 | ||
8dff4fc5 BM |
1739 | return cx; |
1740 | } | |
1741 | ||
1742 | PP(pp_caller) | |
1743 | { | |
1744 | dVAR; | |
1745 | dSP; | |
1746 | register const PERL_CONTEXT *cx; | |
1747 | const PERL_CONTEXT *dbcx; | |
1748 | I32 gimme; | |
1749 | const char *stashname; | |
1750 | I32 count = 0; | |
1751 | ||
1752 | if (MAXARG) | |
1753 | count = POPi; | |
1754 | ||
1755 | cx = caller_cx(count, &dbcx); | |
1756 | if (!cx) { | |
1757 | if (GIMME != G_ARRAY) { | |
1758 | EXTEND(SP, 1); | |
1759 | RETPUSHUNDEF; | |
1760 | } | |
1761 | RETURN; | |
1762 | } | |
1763 | ||
ed094faf | 1764 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1765 | if (GIMME != G_ARRAY) { |
27d41816 | 1766 | EXTEND(SP, 1); |
ed094faf | 1767 | if (!stashname) |
3280af22 | 1768 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1769 | else { |
1770 | dTARGET; | |
ed094faf | 1771 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1772 | PUSHs(TARG); |
1773 | } | |
a0d0e21e LW |
1774 | RETURN; |
1775 | } | |
a0d0e21e | 1776 | |
b3ca2e83 | 1777 | EXTEND(SP, 11); |
27d41816 | 1778 | |
ed094faf | 1779 | if (!stashname) |
3280af22 | 1780 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1781 | else |
6e449a3a MHM |
1782 | mPUSHs(newSVpv(stashname, 0)); |
1783 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1784 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1785 | if (!MAXARG) |
1786 | RETURN; | |
7766f137 | 1787 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1788 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1789 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1790 | if (isGV(cvgv)) { |
561b68a9 | 1791 | SV * const sv = newSV(0); |
c445ea15 | 1792 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1793 | mPUSHs(sv); |
bf38a478 | 1794 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1795 | } |
1796 | else { | |
84bafc02 | 1797 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1798 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1799 | } |
a0d0e21e LW |
1800 | } |
1801 | else { | |
84bafc02 | 1802 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1803 | mPUSHi(0); |
a0d0e21e | 1804 | } |
54310121 PP |
1805 | gimme = (I32)cx->blk_gimme; |
1806 | if (gimme == G_VOID) | |
3280af22 | 1807 | PUSHs(&PL_sv_undef); |
54310121 | 1808 | else |
98625aca | 1809 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1810 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1811 | /* eval STRING */ |
85a64632 | 1812 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1813 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1814 | PUSHs(&PL_sv_no); |
0f79a09d | 1815 | } |
811a4de9 | 1816 | /* require */ |
0f79a09d | 1817 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1818 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1819 | PUSHs(&PL_sv_yes); |
06a5b730 | 1820 | } |
811a4de9 GS |
1821 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1822 | else { | |
1823 | PUSHs(&PL_sv_undef); | |
1824 | PUSHs(&PL_sv_undef); | |
1825 | } | |
4633a7c4 | 1826 | } |
a682de96 GS |
1827 | else { |
1828 | PUSHs(&PL_sv_undef); | |
1829 | PUSHs(&PL_sv_undef); | |
1830 | } | |
bafb2adc | 1831 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1832 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1833 | { |
66a1b24b AL |
1834 | AV * const ary = cx->blk_sub.argarray; |
1835 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1836 | |
5b235299 NC |
1837 | if (!PL_dbargs) |
1838 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1839 | |
3280af22 NIS |
1840 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1841 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1842 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1843 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1844 | } |
f3aa04c2 GS |
1845 | /* XXX only hints propagated via op_private are currently |
1846 | * visible (others are not easily accessible, since they | |
1847 | * use the global PL_hints) */ | |
6e449a3a | 1848 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1849 | { |
1850 | SV * mask ; | |
72dc9ed5 | 1851 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1852 | |
ac27b0f5 | 1853 | if (old_warnings == pWARN_NONE || |
114bafba | 1854 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1855 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1856 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1857 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1858 | /* Get the bit mask for $warnings::Bits{all}, because | |
1859 | * it could have been extended by warnings::register */ | |
1860 | SV **bits_all; | |
6673a63c | 1861 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1862 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1863 | mask = newSVsv(*bits_all); |
1864 | } | |
1865 | else { | |
1866 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1867 | } | |
1868 | } | |
e476b1b5 | 1869 | else |
72dc9ed5 | 1870 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1871 | mPUSHs(mask); |
e476b1b5 | 1872 | } |
b3ca2e83 | 1873 | |
c28fe1ec | 1874 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1875 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1876 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1877 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1878 | : &PL_sv_undef); |
a0d0e21e LW |
1879 | RETURN; |
1880 | } | |
1881 | ||
a0d0e21e LW |
1882 | PP(pp_reset) |
1883 | { | |
97aff369 | 1884 | dVAR; |
39644a26 | 1885 | dSP; |
10edeb5d | 1886 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1887 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1888 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1889 | RETURN; |
1890 | } | |
1891 | ||
dd2155a4 DM |
1892 | /* like pp_nextstate, but used instead when the debugger is active */ |
1893 | ||
a0d0e21e LW |
1894 | PP(pp_dbstate) |
1895 | { | |
27da23d5 | 1896 | dVAR; |
533c011a | 1897 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1898 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1899 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1900 | FREETMPS; |
1901 | ||
f410a211 NC |
1902 | PERL_ASYNC_CHECK(); |
1903 | ||
5df8de69 DM |
1904 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1905 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1906 | { |
39644a26 | 1907 | dSP; |
c09156bb | 1908 | register PERL_CONTEXT *cx; |
f54cb97a | 1909 | const I32 gimme = G_ARRAY; |
eb160463 | 1910 | U8 hasargs; |
0bd48802 AL |
1911 | GV * const gv = PL_DBgv; |
1912 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1913 | |
a0d0e21e | 1914 | if (!cv) |
cea2e8a9 | 1915 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1916 | |
aea4f609 DM |
1917 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1918 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1919 | return NORMAL; |
748a9306 | 1920 | |
a57c6685 | 1921 | ENTER; |
4633a7c4 LW |
1922 | SAVETMPS; |
1923 | ||
3280af22 | 1924 | SAVEI32(PL_debug); |
55497cff | 1925 | SAVESTACK_POS(); |
3280af22 | 1926 | PL_debug = 0; |
748a9306 | 1927 | hasargs = 0; |
924508f0 | 1928 | SPAGAIN; |
748a9306 | 1929 | |
aed2304a | 1930 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1931 | CvDEPTH(cv)++; |
1932 | PUSHMARK(SP); | |
1933 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1934 | CvDEPTH(cv)--; | |
1935 | FREETMPS; | |
a57c6685 | 1936 | LEAVE; |
c127bd3a SF |
1937 | return NORMAL; |
1938 | } | |
1939 | else { | |
1940 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1941 | PUSHSUB_DB(cx); | |
1942 | cx->blk_sub.retop = PL_op->op_next; | |
1943 | CvDEPTH(cv)++; | |
1944 | SAVECOMPPAD(); | |
1945 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1946 | RETURNOP(CvSTART(cv)); | |
1947 | } | |
a0d0e21e LW |
1948 | } |
1949 | else | |
1950 | return NORMAL; | |
1951 | } | |
1952 | ||
a0d0e21e LW |
1953 | PP(pp_enteriter) |
1954 | { | |
27da23d5 | 1955 | dVAR; dSP; dMARK; |
c09156bb | 1956 | register PERL_CONTEXT *cx; |
f54cb97a | 1957 | const I32 gimme = GIMME_V; |
df530c37 | 1958 | void *itervar; /* location of the iteration variable */ |
840fe433 | 1959 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 1960 | |
d343c3ef | 1961 | ENTER_with_name("loop1"); |
4633a7c4 LW |
1962 | SAVETMPS; |
1963 | ||
aafca525 DM |
1964 | if (PL_op->op_targ) { /* "my" variable */ |
1965 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
1966 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
1967 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1968 | SVs_PADSTALE, SVs_PADSTALE); | |
1969 | } | |
09edbca0 | 1970 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 1971 | #ifdef USE_ITHREADS |
df530c37 | 1972 | itervar = PL_comppad; |
89e00a7c | 1973 | #else |
aafca525 | 1974 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 1975 | #endif |
54b9620d | 1976 | } |
aafca525 | 1977 | else { /* symbol table variable */ |
159b6efe | 1978 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
1979 | SV** svp = &GvSV(gv); |
1980 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 1981 | *svp = newSV(0); |
df530c37 | 1982 | itervar = (void *)gv; |
54b9620d | 1983 | } |
4633a7c4 | 1984 | |
0d863452 RH |
1985 | if (PL_op->op_private & OPpITER_DEF) |
1986 | cxtype |= CXp_FOR_DEF; | |
1987 | ||
d343c3ef | 1988 | ENTER_with_name("loop2"); |
a0d0e21e | 1989 | |
7766f137 | 1990 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 1991 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 1992 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1993 | SV *maybe_ary = POPs; |
1994 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1995 | dPOPss; |
d01136d6 | 1996 | SV * const right = maybe_ary; |
984a4bea RD |
1997 | SvGETMAGIC(sv); |
1998 | SvGETMAGIC(right); | |
4fe3f0fa | 1999 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2000 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2001 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2002 | /* Make sure that no-one re-orders cop.h and breaks our | |
2003 | assumptions */ | |
2004 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
2005 | #ifdef NV_PRESERVES_UV |
2006 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
2007 | (SvNV(sv) > (NV)IV_MAX))) | |
2008 | || | |
2009 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2010 | (SvNV(right) < (NV)IV_MIN)))) | |
2011 | #else | |
2012 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2013 | || | |
2014 | ((SvNV(sv) > 0) && | |
2015 | ((SvUV(sv) > (UV)IV_MAX) || | |
2016 | (SvNV(sv) > (NV)UV_MAX))))) | |
2017 | || | |
2018 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2019 | || | |
2020 | ((SvNV(right) > 0) && | |
2021 | ((SvUV(right) > (UV)IV_MAX) || | |
2022 | (SvNV(right) > (NV)UV_MAX)))))) | |
2023 | #endif | |
076d9a11 | 2024 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2025 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2026 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2027 | #ifdef DEBUGGING |
2028 | /* for correct -Dstv display */ | |
2029 | cx->blk_oldsp = sp - PL_stack_base; | |
2030 | #endif | |
89ea2908 | 2031 | } |
3f63a782 | 2032 | else { |
d01136d6 BS |
2033 | cx->cx_type &= ~CXTYPEMASK; |
2034 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2035 | /* Make sure that no-one re-orders cop.h and breaks our | |
2036 | assumptions */ | |
2037 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2038 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2039 | cx->blk_loop.state_u.lazysv.end = right; | |
2040 | SvREFCNT_inc(right); | |
2041 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2042 | /* This will do the upgrade to SVt_PV, and warn if the value |
2043 | is uninitialised. */ | |
10516c54 | 2044 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2045 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2046 | to replace !SvOK() with a pointer to "". */ | |
2047 | if (!SvOK(right)) { | |
2048 | SvREFCNT_dec(right); | |
d01136d6 | 2049 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2050 | } |
3f63a782 | 2051 | } |
89ea2908 | 2052 | } |
d01136d6 | 2053 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2054 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2055 | SvREFCNT_inc(maybe_ary); |
2056 | cx->blk_loop.state_u.ary.ix = | |
2057 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2058 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2059 | -1; | |
ef3e5ea9 | 2060 | } |
89ea2908 | 2061 | } |
d01136d6 BS |
2062 | else { /* iterating over items on the stack */ |
2063 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2064 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2065 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2066 | } |
2067 | else { | |
d01136d6 | 2068 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2069 | } |
4633a7c4 | 2070 | } |
a0d0e21e LW |
2071 | |
2072 | RETURN; | |
2073 | } | |
2074 | ||
2075 | PP(pp_enterloop) | |
2076 | { | |
27da23d5 | 2077 | dVAR; dSP; |
c09156bb | 2078 | register PERL_CONTEXT *cx; |
f54cb97a | 2079 | const I32 gimme = GIMME_V; |
a0d0e21e | 2080 | |
d343c3ef | 2081 | ENTER_with_name("loop1"); |
a0d0e21e | 2082 | SAVETMPS; |
d343c3ef | 2083 | ENTER_with_name("loop2"); |
a0d0e21e | 2084 | |
3b719c58 NC |
2085 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2086 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2087 | |
2088 | RETURN; | |
2089 | } | |
2090 | ||
2091 | PP(pp_leaveloop) | |
2092 | { | |
27da23d5 | 2093 | dVAR; dSP; |
c09156bb | 2094 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2095 | I32 gimme; |
2096 | SV **newsp; | |
2097 | PMOP *newpm; | |
2098 | SV **mark; | |
2099 | ||
2100 | POPBLOCK(cx,newpm); | |
3b719c58 | 2101 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2102 | mark = newsp; |
a8bba7fa | 2103 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2104 | |
a1f49e72 | 2105 | TAINT_NOT; |
54310121 | 2106 | if (gimme == G_VOID) |
6f207bd3 | 2107 | NOOP; |
54310121 PP |
2108 | else if (gimme == G_SCALAR) { |
2109 | if (mark < SP) | |
2110 | *++newsp = sv_mortalcopy(*SP); | |
2111 | else | |
3280af22 | 2112 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2113 | } |
2114 | else { | |
a1f49e72 | 2115 | while (mark < SP) { |
a0d0e21e | 2116 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2117 | TAINT_NOT; /* Each item is independent */ |
2118 | } | |
a0d0e21e | 2119 | } |
f86702cc PP |
2120 | SP = newsp; |
2121 | PUTBACK; | |
2122 | ||
a8bba7fa | 2123 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2124 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2125 | |
d343c3ef GG |
2126 | LEAVE_with_name("loop2"); |
2127 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2128 | |
f86702cc | 2129 | return NORMAL; |
a0d0e21e LW |
2130 | } |
2131 | ||
2132 | PP(pp_return) | |
2133 | { | |
27da23d5 | 2134 | dVAR; dSP; dMARK; |
c09156bb | 2135 | register PERL_CONTEXT *cx; |
f86702cc | 2136 | bool popsub2 = FALSE; |
b45de488 | 2137 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2138 | I32 gimme; |
2139 | SV **newsp; | |
2140 | PMOP *newpm; | |
2141 | I32 optype = 0; | |
b6494f15 | 2142 | SV *namesv; |
b0d9ce38 | 2143 | SV *sv; |
b263a1ad | 2144 | OP *retop = NULL; |
a0d0e21e | 2145 | |
0bd48802 AL |
2146 | const I32 cxix = dopoptosub(cxstack_ix); |
2147 | ||
9850bf21 RH |
2148 | if (cxix < 0) { |
2149 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2150 | * sort block, which is a CXt_NULL | |
2151 | * not a CXt_SUB */ | |
2152 | dounwind(0); | |
d7507f74 RH |
2153 | PL_stack_base[1] = *PL_stack_sp; |
2154 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2155 | return 0; |
2156 | } | |
9850bf21 RH |
2157 | else |
2158 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2159 | } |
a0d0e21e LW |
2160 | if (cxix < cxstack_ix) |
2161 | dounwind(cxix); | |
2162 | ||
d7507f74 RH |
2163 | if (CxMULTICALL(&cxstack[cxix])) { |
2164 | gimme = cxstack[cxix].blk_gimme; | |
2165 | if (gimme == G_VOID) | |
2166 | PL_stack_sp = PL_stack_base; | |
2167 | else if (gimme == G_SCALAR) { | |
2168 | PL_stack_base[1] = *PL_stack_sp; | |
2169 | PL_stack_sp = PL_stack_base + 1; | |
2170 | } | |
9850bf21 | 2171 | return 0; |
d7507f74 | 2172 | } |
9850bf21 | 2173 | |
a0d0e21e | 2174 | POPBLOCK(cx,newpm); |
6b35e009 | 2175 | switch (CxTYPE(cx)) { |
a0d0e21e | 2176 | case CXt_SUB: |
f86702cc | 2177 | popsub2 = TRUE; |
f39bc417 | 2178 | retop = cx->blk_sub.retop; |
5dd42e15 | 2179 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2180 | break; |
2181 | case CXt_EVAL: | |
b45de488 GS |
2182 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2183 | clear_errsv = TRUE; | |
a0d0e21e | 2184 | POPEVAL(cx); |
b6494f15 | 2185 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2186 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2187 | if (CxTRYBLOCK(cx)) |
2188 | break; | |
067f92a0 | 2189 | lex_end(); |
748a9306 LW |
2190 | if (optype == OP_REQUIRE && |
2191 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2192 | { | |
54310121 | 2193 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2194 | (void)hv_delete(GvHVn(PL_incgv), |
2195 | SvPVX_const(namesv), SvCUR(namesv), | |
2196 | G_DISCARD); | |
2197 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2198 | } |
a0d0e21e | 2199 | break; |
7766f137 GS |
2200 | case CXt_FORMAT: |
2201 | POPFORMAT(cx); | |
f39bc417 | 2202 | retop = cx->blk_sub.retop; |
7766f137 | 2203 | break; |
a0d0e21e | 2204 | default: |
cea2e8a9 | 2205 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2206 | } |
2207 | ||
a1f49e72 | 2208 | TAINT_NOT; |
a0d0e21e | 2209 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2210 | if (MARK < SP) { |
2211 | if (popsub2) { | |
a8bba7fa | 2212 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2213 | if (SvTEMP(TOPs)) { |
2214 | *++newsp = SvREFCNT_inc(*SP); | |
2215 | FREETMPS; | |
2216 | sv_2mortal(*newsp); | |
959e3673 GS |
2217 | } |
2218 | else { | |
2219 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2220 | FREETMPS; |
959e3673 GS |
2221 | *++newsp = sv_mortalcopy(sv); |
2222 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2223 | } |
959e3673 GS |
2224 | } |
2225 | else | |
a29cdaf0 | 2226 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2227 | } |
2228 | else | |
a29cdaf0 | 2229 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2230 | } |
2231 | else | |
3280af22 | 2232 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2233 | } |
54310121 | 2234 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2235 | while (++MARK <= SP) { |
f86702cc PP |
2236 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2237 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2238 | TAINT_NOT; /* Each item is independent */ |
2239 | } | |
a0d0e21e | 2240 | } |
3280af22 | 2241 | PL_stack_sp = newsp; |
a0d0e21e | 2242 | |
5dd42e15 | 2243 | LEAVE; |
f86702cc PP |
2244 | /* Stack values are safe: */ |
2245 | if (popsub2) { | |
5dd42e15 | 2246 | cxstack_ix--; |
b0d9ce38 | 2247 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2248 | } |
b0d9ce38 | 2249 | else |
c445ea15 | 2250 | sv = NULL; |
3280af22 | 2251 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2252 | |
b0d9ce38 | 2253 | LEAVESUB(sv); |
8433848b | 2254 | if (clear_errsv) { |
ab69dbc2 | 2255 | CLEAR_ERRSV(); |
8433848b | 2256 | } |
f39bc417 | 2257 | return retop; |
a0d0e21e LW |
2258 | } |
2259 | ||
2260 | PP(pp_last) | |
2261 | { | |
27da23d5 | 2262 | dVAR; dSP; |
a0d0e21e | 2263 | I32 cxix; |
c09156bb | 2264 | register PERL_CONTEXT *cx; |
f86702cc | 2265 | I32 pop2 = 0; |
a0d0e21e | 2266 | I32 gimme; |
8772537c | 2267 | I32 optype; |
b263a1ad | 2268 | OP *nextop = NULL; |
a0d0e21e LW |
2269 | SV **newsp; |
2270 | PMOP *newpm; | |
a8bba7fa | 2271 | SV **mark; |
c445ea15 | 2272 | SV *sv = NULL; |
9d4ba2ae | 2273 | |
a0d0e21e | 2274 | |
533c011a | 2275 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2276 | cxix = dopoptoloop(cxstack_ix); |
2277 | if (cxix < 0) | |
a651a37d | 2278 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2279 | } |
2280 | else { | |
2281 | cxix = dopoptolabel(cPVOP->op_pv); | |
2282 | if (cxix < 0) | |
cea2e8a9 | 2283 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2284 | } |
2285 | if (cxix < cxstack_ix) | |
2286 | dounwind(cxix); | |
2287 | ||
2288 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2289 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2290 | mark = newsp; |
6b35e009 | 2291 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2292 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2293 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2294 | case CXt_LOOP_FOR: |
2295 | case CXt_LOOP_PLAIN: | |
2296 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2297 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2298 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2299 | break; |
f86702cc | 2300 | case CXt_SUB: |
f86702cc | 2301 | pop2 = CXt_SUB; |
f39bc417 | 2302 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2303 | break; |
f86702cc PP |
2304 | case CXt_EVAL: |
2305 | POPEVAL(cx); | |
f39bc417 | 2306 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2307 | break; |
7766f137 GS |
2308 | case CXt_FORMAT: |
2309 | POPFORMAT(cx); | |
f39bc417 | 2310 | nextop = cx->blk_sub.retop; |
7766f137 | 2311 | break; |
a0d0e21e | 2312 | default: |
cea2e8a9 | 2313 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2314 | } |
2315 | ||
a1f49e72 | 2316 | TAINT_NOT; |
a0d0e21e | 2317 | if (gimme == G_SCALAR) { |
f86702cc PP |
2318 | if (MARK < SP) |
2319 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2320 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2321 | else |
3280af22 | 2322 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2323 | } |
54310121 | 2324 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2325 | while (++MARK <= SP) { |
f86702cc PP |
2326 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2327 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2328 | TAINT_NOT; /* Each item is independent */ |
2329 | } | |
f86702cc PP |
2330 | } |
2331 | SP = newsp; | |
2332 | PUTBACK; | |
2333 | ||
5dd42e15 DM |
2334 | LEAVE; |
2335 | cxstack_ix--; | |
f86702cc PP |
2336 | /* Stack values are safe: */ |
2337 | switch (pop2) { | |
c6fdafd0 | 2338 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2339 | case CXt_LOOP_PLAIN: |
d01136d6 | 2340 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2341 | case CXt_LOOP_FOR: |
a8bba7fa | 2342 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2343 | LEAVE; |
f86702cc PP |
2344 | break; |
2345 | case CXt_SUB: | |
b0d9ce38 | 2346 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2347 | break; |
a0d0e21e | 2348 | } |
3280af22 | 2349 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2350 | |
b0d9ce38 | 2351 | LEAVESUB(sv); |
9d4ba2ae AL |
2352 | PERL_UNUSED_VAR(optype); |
2353 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2354 | return nextop; |
a0d0e21e LW |
2355 | } |
2356 | ||
2357 | PP(pp_next) | |
2358 | { | |
27da23d5 | 2359 | dVAR; |
a0d0e21e | 2360 | I32 cxix; |
c09156bb | 2361 | register PERL_CONTEXT *cx; |
85538317 | 2362 | I32 inner; |
a0d0e21e | 2363 | |
533c011a | 2364 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2365 | cxix = dopoptoloop(cxstack_ix); |
2366 | if (cxix < 0) | |
a651a37d | 2367 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2368 | } |
2369 | else { | |
2370 | cxix = dopoptolabel(cPVOP->op_pv); | |
2371 | if (cxix < 0) | |
cea2e8a9 | 2372 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2373 | } |
2374 | if (cxix < cxstack_ix) | |
2375 | dounwind(cxix); | |
2376 | ||
85538317 GS |
2377 | /* clear off anything above the scope we're re-entering, but |
2378 | * save the rest until after a possible continue block */ | |
2379 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2380 | TOPBLOCK(cx); |
85538317 GS |
2381 | if (PL_scopestack_ix < inner) |
2382 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2383 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2384 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2385 | } |
2386 | ||
2387 | PP(pp_redo) | |
2388 | { | |
27da23d5 | 2389 | dVAR; |
a0d0e21e | 2390 | I32 cxix; |
c09156bb | 2391 | register PERL_CONTEXT *cx; |
a0d0e21e | 2392 | I32 oldsave; |
a034e688 | 2393 | OP* redo_op; |
a0d0e21e | 2394 | |
533c011a | 2395 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2396 | cxix = dopoptoloop(cxstack_ix); |
2397 | if (cxix < 0) | |
a651a37d | 2398 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2399 | } |
2400 | else { | |
2401 | cxix = dopoptolabel(cPVOP->op_pv); | |
2402 | if (cxix < 0) | |
cea2e8a9 | 2403 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2404 | } |
2405 | if (cxix < cxstack_ix) | |
2406 | dounwind(cxix); | |
2407 | ||
022eaa24 | 2408 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2409 | if (redo_op->op_type == OP_ENTER) { |
2410 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2411 | cxstack_ix++; | |
2412 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2413 | redo_op = redo_op->op_next; | |
2414 | } | |
2415 | ||
a0d0e21e | 2416 | TOPBLOCK(cx); |
3280af22 | 2417 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2418 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2419 | FREETMPS; |
3a1b2b9e | 2420 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2421 | return redo_op; |
a0d0e21e LW |
2422 | } |
2423 | ||
0824fdcb | 2424 | STATIC OP * |
bfed75c6 | 2425 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2426 | { |
97aff369 | 2427 | dVAR; |
a0d0e21e | 2428 | OP **ops = opstack; |
bfed75c6 | 2429 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2430 | |
7918f24d NC |
2431 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2432 | ||
fc36a67e | 2433 | if (ops >= oplimit) |
cea2e8a9 | 2434 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2435 | if (o->op_type == OP_LEAVE || |
2436 | o->op_type == OP_SCOPE || | |
2437 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2438 | o->op_type == OP_LEAVESUB || |
11343788 | 2439 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2440 | { |
5dc0d613 | 2441 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2442 | if (ops >= oplimit) |
cea2e8a9 | 2443 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2444 | } |
c4aa4e48 | 2445 | *ops = 0; |
11343788 | 2446 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2447 | OP *kid; |
a0d0e21e | 2448 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2449 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2450 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2451 | const char *kid_label = CopLABEL(kCOP); | |
2452 | if (kid_label && strEQ(kid_label, label)) | |
2453 | return kid; | |
2454 | } | |
a0d0e21e | 2455 | } |
11343788 | 2456 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2457 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2458 | continue; |
ed8d0fe2 SM |
2459 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2460 | if (ops == opstack) | |
2461 | *ops++ = kid; | |
2462 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2463 | ops[-1]->op_type == OP_DBSTATE) | |
2464 | ops[-1] = kid; | |
2465 | else | |
2466 | *ops++ = kid; | |
2467 | } | |
155aba94 | 2468 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2469 | return o; |
a0d0e21e LW |
2470 | } |
2471 | } | |
c4aa4e48 | 2472 | *ops = 0; |
a0d0e21e LW |
2473 | return 0; |
2474 | } | |
2475 | ||
a0d0e21e LW |
2476 | PP(pp_goto) |
2477 | { | |
27da23d5 | 2478 | dVAR; dSP; |
cbbf8932 | 2479 | OP *retop = NULL; |
a0d0e21e | 2480 | I32 ix; |
c09156bb | 2481 | register PERL_CONTEXT *cx; |
fc36a67e PP |
2482 | #define GOTO_DEPTH 64 |
2483 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2484 | const char *label = NULL; |
bfed75c6 AL |
2485 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2486 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2487 | |
533c011a | 2488 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2489 | SV * const sv = POPs; |
a0d0e21e LW |
2490 | |
2491 | /* This egregious kludge implements goto &subroutine */ | |
2492 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2493 | I32 cxix; | |
c09156bb | 2494 | register PERL_CONTEXT *cx; |
ea726b52 | 2495 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2496 | SV** mark; |
2497 | I32 items = 0; | |
2498 | I32 oldsave; | |
b1464ded | 2499 | bool reified = 0; |
a0d0e21e | 2500 | |
e8f7dd13 | 2501 | retry: |
4aa0a1f7 | 2502 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2503 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2504 | if (gv) { |
7fc63493 | 2505 | GV *autogv; |
e8f7dd13 GS |
2506 | SV *tmpstr; |
2507 | /* autoloaded stub? */ | |
2508 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2509 | goto retry; | |
2510 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2511 | GvNAMELEN(gv), FALSE); | |
2512 | if (autogv && (cv = GvCV(autogv))) | |
2513 | goto retry; | |
2514 | tmpstr = sv_newmortal(); | |
c445ea15 | 2515 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2516 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2517 | } |
cea2e8a9 | 2518 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2519 | } |
2520 | ||
a0d0e21e | 2521 | /* First do some returnish stuff. */ |
b37c2d43 | 2522 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2523 | FREETMPS; |
a0d0e21e LW |
2524 | cxix = dopoptosub(cxstack_ix); |
2525 | if (cxix < 0) | |
cea2e8a9 | 2526 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2527 | if (cxix < cxstack_ix) |
2528 | dounwind(cxix); | |
2529 | TOPBLOCK(cx); | |
2d43a17f | 2530 | SPAGAIN; |
564abe23 | 2531 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2532 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2533 | if (CxREALEVAL(cx)) |
2534 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2535 | else | |
2536 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2537 | } |
9850bf21 RH |
2538 | else if (CxMULTICALL(cx)) |
2539 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2540 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2541 | /* put @_ back onto stack */ |
a0d0e21e | 2542 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2543 | |
93965878 | 2544 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2545 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2546 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2547 | SvREFCNT_dec(GvAV(PL_defgv)); |
2548 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2549 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2550 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2551 | if (AvREAL(av)) { |
b1464ded DM |
2552 | reified = 1; |
2553 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2554 | av = newAV(); |
2555 | av_extend(av, items-1); | |
11ca45c0 | 2556 | AvREIFY_only(av); |
ad64d0ec | 2557 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2558 | } |
a0d0e21e | 2559 | } |
aed2304a | 2560 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2561 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2562 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2563 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2564 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2565 | } |
a45cdc79 DM |
2566 | mark = SP; |
2567 | SP += items; | |
6b35e009 | 2568 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2569 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2570 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2571 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2572 | LEAVE_SCOPE(oldsave); |
2573 | ||
2574 | /* Now do some callish stuff. */ | |
2575 | SAVETMPS; | |
5023d17a | 2576 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2577 | if (CvISXSUB(cv)) { |
b37c2d43 | 2578 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2579 | SV **newsp; |
2580 | I32 gimme; | |
b1464ded DM |
2581 | if (reified) { |
2582 | I32 index; | |
2583 | for (index=0; index<items; index++) | |
2584 | sv_2mortal(SP[-index]); | |
2585 | } | |
1fa4e549 | 2586 | |
b37c2d43 AL |
2587 | /* XS subs don't have a CxSUB, so pop it */ |
2588 | POPBLOCK(cx, PL_curpm); | |
2589 | /* Push a mark for the start of arglist */ | |
2590 | PUSHMARK(mark); | |
2591 | PUTBACK; | |
2592 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2593 | LEAVE; |
5eff7df7 | 2594 | return retop; |
a0d0e21e LW |
2595 | } |
2596 | else { | |
b37c2d43 | 2597 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2598 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2599 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2600 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2601 | cx->cx_type = CXt_SUB; |
b150fb22 | 2602 | } |
a0d0e21e | 2603 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2604 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2605 | |
a0d0e21e LW |
2606 | CvDEPTH(cv)++; |
2607 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2608 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2609 | else { |
2b9dff67 | 2610 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2611 | sub_crush_depth(cv); |
26019298 | 2612 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2613 | } |
fd617465 DM |
2614 | SAVECOMPPAD(); |
2615 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2616 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2617 | { |
502c6561 | 2618 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2619 | |
3280af22 | 2620 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2621 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2622 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2623 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2624 | |
2625 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2626 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2627 | if (AvARRAY(av) != ary) { |
2628 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2629 | AvARRAY(av) = ary; |
a0d0e21e LW |
2630 | } |
2631 | if (items >= AvMAX(av) + 1) { | |
2632 | AvMAX(av) = items - 1; | |
2633 | Renew(ary,items+1,SV*); | |
2634 | AvALLOC(av) = ary; | |
9c6bc640 | 2635 | AvARRAY(av) = ary; |
a0d0e21e LW |
2636 | } |
2637 | } | |
a45cdc79 | 2638 | ++mark; |
a0d0e21e | 2639 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2640 | AvFILLp(av) = items - 1; |
d8b46c1b | 2641 | assert(!AvREAL(av)); |
b1464ded DM |
2642 | if (reified) { |
2643 | /* transfer 'ownership' of refcnts to new @_ */ | |
2644 | AvREAL_on(av); | |
2645 | AvREIFY_off(av); | |
2646 | } | |
a0d0e21e LW |
2647 | while (items--) { |
2648 | if (*mark) | |
2649 | SvTEMP_off(*mark); | |
2650 | mark++; | |
2651 | } | |
2652 | } | |
491527d0 | 2653 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2654 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2655 | if (PERLDB_GOTO) { |
b96d8cd9 | 2656 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2657 | if (gotocv) { |
2658 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2659 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2660 | PL_stack_sp--; |
2661 | } | |
491527d0 | 2662 | } |
1ce6579f | 2663 | } |
a0d0e21e LW |
2664 | RETURNOP(CvSTART(cv)); |
2665 | } | |
2666 | } | |
1614b0e3 | 2667 | else { |
0510663f | 2668 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2669 | if (!(do_dump || *label)) |
cea2e8a9 | 2670 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2671 | } |
a0d0e21e | 2672 | } |
533c011a | 2673 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2674 | if (! do_dump) |
cea2e8a9 | 2675 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2676 | } |
2677 | else | |
2678 | label = cPVOP->op_pv; | |
2679 | ||
f410a211 NC |
2680 | PERL_ASYNC_CHECK(); |
2681 | ||
a0d0e21e | 2682 | if (label && *label) { |
cbbf8932 | 2683 | OP *gotoprobe = NULL; |
3b2447bc | 2684 | bool leaving_eval = FALSE; |
33d34e4c | 2685 | bool in_block = FALSE; |
cbbf8932 | 2686 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2687 | |
2688 | /* find label */ | |
2689 | ||
d4c19fe8 | 2690 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2691 | *enterops = 0; |
2692 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2693 | cx = &cxstack[ix]; | |
6b35e009 | 2694 | switch (CxTYPE(cx)) { |
a0d0e21e | 2695 | case CXt_EVAL: |
3b2447bc | 2696 | leaving_eval = TRUE; |
971ecbe6 | 2697 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2698 | gotoprobe = (last_eval_cx ? |
2699 | last_eval_cx->blk_eval.old_eval_root : | |
2700 | PL_eval_root); | |
2701 | last_eval_cx = cx; | |
9c5794fe RH |
2702 | break; |
2703 | } | |
2704 | /* else fall through */ | |
c6fdafd0 | 2705 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2706 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2707 | case CXt_LOOP_FOR: |
2708 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2709 | case CXt_GIVEN: |
2710 | case CXt_WHEN: | |
a0d0e21e LW |
2711 | gotoprobe = cx->blk_oldcop->op_sibling; |
2712 | break; | |
2713 | case CXt_SUBST: | |
2714 | continue; | |
2715 | case CXt_BLOCK: | |
33d34e4c | 2716 | if (ix) { |
a0d0e21e | 2717 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2718 | in_block = TRUE; |
2719 | } else | |
3280af22 | 2720 | gotoprobe = PL_main_root; |
a0d0e21e | 2721 | break; |
b3933176 | 2722 | case CXt_SUB: |
9850bf21 | 2723 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2724 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2725 | break; | |
2726 | } | |
2727 | /* FALL THROUGH */ | |
7766f137 | 2728 | case CXt_FORMAT: |
0a753a76 | 2729 | case CXt_NULL: |
a651a37d | 2730 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2731 | default: |
2732 | if (ix) | |
cea2e8a9 | 2733 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2734 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2735 | break; |
2736 | } | |
2b597662 GS |
2737 | if (gotoprobe) { |
2738 | retop = dofindlabel(gotoprobe, label, | |
2739 | enterops, enterops + GOTO_DEPTH); | |
2740 | if (retop) | |
2741 | break; | |
2742 | } | |
3280af22 | 2743 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2744 | } |
2745 | if (!retop) | |
cea2e8a9 | 2746 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2747 | |
3b2447bc RH |
2748 | /* if we're leaving an eval, check before we pop any frames |
2749 | that we're not going to punt, otherwise the error | |
2750 | won't be caught */ | |
2751 | ||
2752 | if (leaving_eval && *enterops && enterops[1]) { | |
2753 | I32 i; | |
2754 | for (i = 1; enterops[i]; i++) | |
2755 | if (enterops[i]->op_type == OP_ENTERITER) | |
2756 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2757 | } | |
2758 | ||
b500e03b GG |
2759 | if (*enterops && enterops[1]) { |
2760 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2761 | if (enterops[i]) | |
2762 | deprecate("\"goto\" to jump into a construct"); | |
2763 | } | |
2764 | ||
a0d0e21e LW |
2765 | /* pop unwanted frames */ |
2766 | ||
2767 | if (ix < cxstack_ix) { | |
2768 | I32 oldsave; | |
2769 | ||
2770 | if (ix < 0) | |
2771 | ix = 0; | |
2772 | dounwind(ix); | |
2773 | TOPBLOCK(cx); | |
3280af22 | 2774 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2775 | LEAVE_SCOPE(oldsave); |
2776 | } | |
2777 | ||
2778 | /* push wanted frames */ | |
2779 | ||
748a9306 | 2780 | if (*enterops && enterops[1]) { |
0bd48802 | 2781 | OP * const oldop = PL_op; |
33d34e4c AE |
2782 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2783 | for (; enterops[ix]; ix++) { | |
533c011a | 2784 | PL_op = enterops[ix]; |
84902520 TB |
2785 | /* Eventually we may want to stack the needed arguments |
2786 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2787 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2788 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2789 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2790 | } |
533c011a | 2791 | PL_op = oldop; |
a0d0e21e LW |
2792 | } |
2793 | } | |
2794 | ||
2795 | if (do_dump) { | |
a5f75d66 | 2796 | #ifdef VMS |
6b88bc9c | 2797 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2798 | #endif |
3280af22 NIS |
2799 | PL_restartop = retop; |
2800 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2801 | |
2802 | my_unexec(); | |
2803 | ||
3280af22 NIS |
2804 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2805 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2806 | } |
2807 | ||
2808 | RETURNOP(retop); | |
2809 | } | |
2810 | ||
2811 | PP(pp_exit) | |
2812 | { | |
97aff369 | 2813 | dVAR; |
39644a26 | 2814 | dSP; |
a0d0e21e LW |
2815 | I32 anum; |
2816 | ||
2817 | if (MAXARG < 1) | |
2818 | anum = 0; | |
ff0cee69 | 2819 | else { |
a0d0e21e | 2820 | anum = SvIVx(POPs); |
d98f61e7 GS |
2821 | #ifdef VMS |
2822 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2823 | anum = 0; |
96e176bf | 2824 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 PP |
2825 | #endif |
2826 | } | |
cc3604b1 | 2827 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2828 | #ifdef PERL_MAD |
2829 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2830 | if (anum || !(PL_minus_c && PL_madskills)) | |
2831 | my_exit(anum); | |
2832 | #else | |
a0d0e21e | 2833 | my_exit(anum); |
81d86705 | 2834 | #endif |
3280af22 | 2835 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2836 | RETURN; |
2837 | } | |
2838 | ||
a0d0e21e LW |
2839 | /* Eval. */ |
2840 | ||
0824fdcb | 2841 | STATIC void |
cea2e8a9 | 2842 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2843 | { |
504618e9 | 2844 | const char *s = SvPVX_const(sv); |
890ce7af | 2845 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2846 | I32 line = 1; |
a0d0e21e | 2847 | |
7918f24d NC |
2848 | PERL_ARGS_ASSERT_SAVE_LINES; |
2849 | ||
a0d0e21e | 2850 | while (s && s < send) { |
f54cb97a | 2851 | const char *t; |
b9f83d2f | 2852 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2853 | |
1d963ff3 | 2854 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2855 | if (t) |
2856 | t++; | |
2857 | else | |
2858 | t = send; | |
2859 | ||
2860 | sv_setpvn(tmpstr, s, t - s); | |
2861 | av_store(array, line++, tmpstr); | |
2862 | s = t; | |
2863 | } | |
2864 | } | |
2865 | ||
22f16304 RU |
2866 | /* |
2867 | =for apidoc docatch | |
2868 | ||
2869 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2870 | ||
2871 | 0 is used as continue inside eval, | |
2872 | ||
2873 | 3 is used for a die caught by an inner eval - continue inner loop | |
2874 | ||
2875 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
2876 | establish a local jmpenv to handle exception traps. | |
2877 | ||
2878 | =cut | |
2879 | */ | |
0824fdcb | 2880 | STATIC OP * |
cea2e8a9 | 2881 | S_docatch(pTHX_ OP *o) |
1e422769 | 2882 | { |
97aff369 | 2883 | dVAR; |
6224f72b | 2884 | int ret; |
06b5626a | 2885 | OP * const oldop = PL_op; |
db36c5a1 | 2886 | dJMPENV; |
1e422769 | 2887 | |
1e422769 | 2888 | #ifdef DEBUGGING |
54310121 | 2889 | assert(CATCH_GET == TRUE); |
1e422769 | 2890 | #endif |
312caa8e | 2891 | PL_op = o; |
8bffa5f8 | 2892 | |
14dd3ad8 | 2893 | JMPENV_PUSH(ret); |
6224f72b | 2894 | switch (ret) { |
312caa8e | 2895 | case 0: |
abd70938 DM |
2896 | assert(cxstack_ix >= 0); |
2897 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2898 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2899 | redo_body: |
85aaa934 | 2900 | CALLRUNOPS(aTHX); |
312caa8e CS |
2901 | break; |
2902 | case 3: | |
8bffa5f8 | 2903 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
2904 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
2905 | PL_restartjmpenv = NULL; | |
312caa8e CS |
2906 | PL_op = PL_restartop; |
2907 | PL_restartop = 0; | |
2908 | goto redo_body; | |
2909 | } | |
2910 | /* FALL THROUGH */ | |
2911 | default: | |
14dd3ad8 | 2912 | JMPENV_POP; |
533c011a | 2913 | PL_op = oldop; |
6224f72b | 2914 | JMPENV_JUMP(ret); |
1e422769 | 2915 | /* NOTREACHED */ |
1e422769 | 2916 | } |
14dd3ad8 | 2917 | JMPENV_POP; |
533c011a | 2918 | PL_op = oldop; |
5f66b61c | 2919 | return NULL; |
1e422769 PP |
2920 | } |
2921 | ||
ee23ad3b NC |
2922 | /* James Bond: Do you expect me to talk? |
2923 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
2924 | ||
2925 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
2926 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
2927 | ||
2928 | Currently it is not used outside the core code. Best if it stays that way. | |
2929 | */ | |
c277df42 | 2930 | OP * |
bfed75c6 | 2931 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2932 | /* sv Text to convert to OP tree. */ |
2933 | /* startop op_free() this to undo. */ | |
2934 | /* code Short string id of the caller. */ | |
2935 | { | |
27da23d5 | 2936 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2937 | PERL_CONTEXT *cx; |
2938 | SV **newsp; | |
b094c71d | 2939 | I32 gimme = G_VOID; |
c277df42 IZ |
2940 | I32 optype; |
2941 | OP dummy; | |
83ee9e09 GS |
2942 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2943 | char *tmpbuf = tbuf; | |
c277df42 | 2944 | char *safestr; |
a3985cdc | 2945 | int runtime; |
601f1833 | 2946 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2947 | STRLEN len; |
634d6919 | 2948 | bool need_catch; |
c277df42 | 2949 | |
7918f24d NC |
2950 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2951 | ||
d343c3ef | 2952 | ENTER_with_name("eval"); |
5486870f | 2953 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2954 | SAVETMPS; |
2955 | /* switch to eval mode */ | |
2956 | ||
923e4eb5 | 2957 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2958 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2959 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2960 | } |
83ee9e09 | 2961 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2962 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2963 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2964 | code, (unsigned long)++PL_evalseq, | |
2965 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2966 | tmpbuf = SvPVX(sv); | |
fc009855 | 2967 | len = SvCUR(sv); |
83ee9e09 GS |
2968 | } |
2969 | else | |
d9fad198 JH |
2970 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2971 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2972 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2973 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2974 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2975 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2976 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2977 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2978 | (i.e. before run-time proper). To work around the coredump that | |
2979 | ensues, we always turn GvMULTI_on for any globals that were | |
2980 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2981 | safestr = savepvn(tmpbuf, len); |
2982 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2983 | SAVEHINTS(); |
d1ca3daa | 2984 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2985 | PL_opsave = op; |
d1ca3daa | 2986 | #else |
7766f137 | 2987 | SAVEVPTR(PL_op); |
d1ca3daa | 2988 | #endif |
c277df42 | 2989 | |
a3985cdc | 2990 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2991 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2992 | if (runtime) |
d819b83a | 2993 | runcv = find_runcv(NULL); |
a3985cdc | 2994 | |
533c011a | 2995 | PL_op = &dummy; |
13b51b79 | 2996 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2997 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2998 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2999 | PUSHEVAL(cx, 0); |
634d6919 GG |
3000 | need_catch = CATCH_GET; |
3001 | CATCH_SET(TRUE); | |
a3985cdc DM |
3002 | |
3003 | if (runtime) | |
410be5db | 3004 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 3005 | else |
410be5db | 3006 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 3007 | CATCH_SET(need_catch); |
13b51b79 | 3008 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3009 | POPEVAL(cx); |
c277df42 IZ |
3010 | |
3011 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3012 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 3013 | lex_end(); |
f3548bdc | 3014 | /* XXX DAPM do this properly one year */ |
502c6561 | 3015 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3016 | LEAVE_with_name("eval"); |
923e4eb5 | 3017 | if (IN_PERL_COMPILETIME) |
623e6609 | 3018 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3019 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3020 | op = PL_opsave; |
d1ca3daa | 3021 | #endif |
9d4ba2ae AL |
3022 | PERL_UNUSED_VAR(newsp); |
3023 | PERL_UNUSED_VAR(optype); | |
3024 | ||
410be5db | 3025 | return PL_eval_start; |
c277df42 IZ |
3026 | } |
3027 | ||
a3985cdc DM |
3028 | |
3029 | /* | |
3030 | =for apidoc find_runcv | |
3031 | ||
3032 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3033 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3034 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3035 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3036 | than in the scope of the debugger itself). |
a3985cdc DM |
3037 | |
3038 | =cut | |
3039 | */ | |
3040 | ||
3041 | CV* | |
d819b83a | 3042 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3043 | { |
97aff369 | 3044 | dVAR; |
a3985cdc | 3045 | PERL_SI *si; |
a3985cdc | 3046 | |
d819b83a DM |
3047 | if (db_seqp) |
3048 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3049 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3050 | I32 ix; |
a3985cdc | 3051 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3052 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3053 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3054 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3055 | /* skip DB:: code */ |
3056 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3057 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3058 | continue; | |
3059 | } | |
3060 | return cv; | |
3061 | } | |
a3985cdc DM |
3062 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3063 | return PL_compcv; | |
3064 | } | |
3065 | } | |
3066 | return PL_main_cv; | |
3067 | } | |
3068 | ||
3069 | ||
27e90453 DM |
3070 | /* Run yyparse() in a setjmp wrapper. Returns: |
3071 | * 0: yyparse() successful | |
3072 | * 1: yyparse() failed | |
3073 | * 3: yyparse() died | |
3074 | */ | |
3075 | STATIC int | |
28ac2b49 | 3076 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3077 | { |
3078 | int ret; | |
3079 | dJMPENV; | |
3080 | ||
3081 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3082 | JMPENV_PUSH(ret); | |
3083 | switch (ret) { | |
3084 | case 0: | |
28ac2b49 | 3085 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3086 | break; |
3087 | case 3: | |
3088 | break; | |
3089 | default: | |
3090 | JMPENV_POP; | |
3091 | JMPENV_JUMP(ret); | |
3092 | /* NOTREACHED */ | |
3093 | } | |
3094 | JMPENV_POP; | |
3095 | return ret; | |
3096 | } | |
3097 | ||
3098 | ||
a3985cdc DM |
3099 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3100 | * In the last case, startop is non-null, and contains the address of | |
3101 | * a pointer that should be set to the just-compiled code. | |
3102 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3103 | * Returns a bool indicating whether the compile was successful; if so, |
3104 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3105 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3106 | */ |
3107 | ||
410be5db | 3108 | STATIC bool |
a3985cdc | 3109 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3110 | { |
27da23d5 | 3111 | dVAR; dSP; |
46c461b5 | 3112 | OP * const saveop = PL_op; |
27e90453 DM |
3113 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3114 | int yystatus; | |
a0d0e21e | 3115 | |
27e90453 | 3116 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3117 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3118 | : EVAL_INEVAL); | |
a0d0e21e | 3119 | |
1ce6579f PP |
3120 | PUSHMARK(SP); |
3121 | ||
3280af22 | 3122 | SAVESPTR(PL_compcv); |
ea726b52 | 3123 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3124 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3125 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3126 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3127 | ||
a3985cdc | 3128 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3129 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3130 | |
dd2155a4 | 3131 | /* set up a scratch pad */ |
a0d0e21e | 3132 | |
dd2155a4 | 3133 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3134 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3135 | |
07055b4c | 3136 | |
81d86705 NC |
3137 | if (!PL_madskills) |
3138 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3139 | |
a0d0e21e LW |
3140 | /* make sure we compile in the right package */ |
3141 | ||
ed094faf | 3142 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3143 | SAVESPTR(PL_curstash); |
ed094faf | 3144 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3145 | } |
3c10abe3 | 3146 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3147 | SAVESPTR(PL_beginav); |
3148 | PL_beginav = newAV(); | |
3149 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3150 | SAVESPTR(PL_unitcheckav); |
3151 | PL_unitcheckav = newAV(); | |
3152 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3153 | |
81d86705 | 3154 | #ifdef PERL_MAD |
9da243ce | 3155 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3156 | PL_madskills = 0; |
3157 | #endif | |
3158 | ||
a0d0e21e LW |
3159 | /* try to compile it */ |
3160 | ||
5f66b61c | 3161 | PL_eval_root = NULL; |
3280af22 | 3162 | PL_curcop = &PL_compiling; |
fc15ae8f | 3163 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3164 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3165 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3166 | else |
3167 | CLEAR_ERRSV(); | |
27e90453 | 3168 | |
52db365a BM |
3169 | CALL_BLOCK_HOOKS(eval, saveop); |
3170 | ||
27e90453 DM |
3171 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3172 | * so honour CATCH_GET and trap it here if necessary */ | |
3173 | ||
28ac2b49 | 3174 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3175 | |
3176 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3177 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3178 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3179 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3180 | SV *namesv = NULL; |
9d4ba2ae | 3181 | const char *msg; |
bfed75c6 | 3182 | |
27e90453 DM |
3183 | PERL_UNUSED_VAR(newsp); |
3184 | PERL_UNUSED_VAR(optype); | |
3185 | ||
c86ffc32 DM |
3186 | /* note that if yystatus == 3, then the EVAL CX block has already |
3187 | * been popped, and various vars restored */ | |
533c011a | 3188 | PL_op = saveop; |
27e90453 | 3189 | if (yystatus != 3) { |
c86ffc32 DM |
3190 | if (PL_eval_root) { |
3191 | op_free(PL_eval_root); | |
3192 | PL_eval_root = NULL; | |
3193 | } | |
27e90453 DM |
3194 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3195 | if (!startop) { | |
3196 | POPBLOCK(cx,PL_curpm); | |
3197 | POPEVAL(cx); | |
b6494f15 | 3198 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3199 | } |
c277df42 | 3200 | } |
a0d0e21e | 3201 | lex_end(); |
27e90453 DM |
3202 | if (yystatus != 3) |
3203 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3204 | |
3205 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3206 | if (in_require) { |
b6494f15 VP |
3207 | if (!cx) { |
3208 | /* If cx is still NULL, it means that we didn't go in the | |
3209 | * POPEVAL branch. */ | |
3210 | cx = &cxstack[cxstack_ix]; | |
3211 | assert(CxTYPE(cx) == CXt_EVAL); | |
3212 | namesv = cx->blk_eval.old_namesv; | |
3213 | } | |
3214 | (void)hv_store(GvHVn(PL_incgv), | |
3215 | SvPVX_const(namesv), SvCUR(namesv), | |
3216 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3217 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3218 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3219 | } |
3220 | else if (startop) { | |
27e90453 DM |
3221 | if (yystatus != 3) { |
3222 | POPBLOCK(cx,PL_curpm); | |
3223 | POPEVAL(cx); | |
3224 | } | |
5a844595 GS |
3225 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3226 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3227 | } |
9d7f88dd | 3228 | else { |
9d7f88dd | 3229 | if (!*msg) { |
6502358f | 3230 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3231 | } |
3232 | } | |
410be5db DM |
3233 | PUSHs(&PL_sv_undef); |
3234 | PUTBACK; | |
3235 | return FALSE; | |
a0d0e21e | 3236 | } |
57843af0 | 3237 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3238 | if (startop) { |
3280af22 | 3239 | *startop = PL_eval_root; |
c277df42 | 3240 | } else |
3280af22 | 3241 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3242 | |
3243 | /* Set the context for this new optree. | |
021f53de GG |
3244 | * Propagate the context from the eval(). */ |
3245 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3246 | scalarvoid(PL_eval_root); |
7df0357e | 3247 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3248 | list(PL_eval_root); |
a0d0e21e | 3249 | else |
3280af22 | 3250 | scalar(PL_eval_root); |
a0d0e21e LW |
3251 | |
3252 | DEBUG_x(dump_eval()); | |
3253 | ||
55497cff | 3254 | /* Register with debugger: */ |
6482a30d | 3255 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3256 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff PP |
3257 | if (cv) { |
3258 | dSP; | |
924508f0 | 3259 | PUSHMARK(SP); |
ad64d0ec | 3260 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3261 | PUTBACK; |
ad64d0ec | 3262 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff PP |
3263 | } |
3264 | } | |
3265 | ||
8ed49485 FC |
3266 | if (PL_unitcheckav) { |
3267 | OP *es = PL_eval_start; | |
3c10abe3 | 3268 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3269 | PL_eval_start = es; |
3270 | } | |
3c10abe3 | 3271 | |
a0d0e21e LW |
3272 | /* compiled okay, so do it */ |
3273 | ||
3280af22 NIS |
3274 | CvDEPTH(PL_compcv) = 1; |
3275 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3276 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3277 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3278 | |
410be5db DM |
3279 | PUTBACK; |
3280 | return TRUE; | |
a0d0e21e LW |
3281 | } |
3282 | ||
a6c40364 | 3283 | STATIC PerlIO * |
0786552a | 3284 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3285 | { |
3286 | Stat_t st; | |
c445ea15 | 3287 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3288 | |
7918f24d NC |
3289 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3290 | ||
6b845e56 | 3291 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3292 | return NULL; |
ce8abf5f SP |
3293 | } |
3294 | ||
0786552a | 3295 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3296 | } |
3297 | ||
75c20bac | 3298 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3299 | STATIC PerlIO * |
0786552a | 3300 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3301 | { |
b295d113 TH |
3302 | PerlIO *fp; |
3303 | ||
7918f24d NC |
3304 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3305 | ||
ce9440c8 | 3306 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3307 | SV *const pmcsv = newSV(namelen + 2); |
3308 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3309 | Stat_t pmcstat; |
50b8ed39 NC |
3310 | |
3311 | memcpy(pmc, name, namelen); | |
3312 | pmc[namelen] = 'c'; | |
3313 | pmc[namelen + 1] = '\0'; | |
3314 | ||
a6c40364 | 3315 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3316 | fp = check_type_and_open(name); |
a6c40364 GS |
3317 | } |
3318 | else { | |
0786552a | 3319 | fp = check_type_and_open(pmc); |
b295d113 | 3320 | } |
a6c40364 GS |
3321 | SvREFCNT_dec(pmcsv); |
3322 | } | |
3323 | else { | |
0786552a | 3324 | fp = check_type_and_open(name); |
b295d113 | 3325 | } |
b295d113 | 3326 | return fp; |
75c20bac | 3327 | } |
7925835c | 3328 | #else |
75c20bac | 3329 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3330 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3331 | |
a0d0e21e LW |
3332 | PP(pp_require) |
3333 | { | |
27da23d5 | 3334 | dVAR; dSP; |
c09156bb | 3335 | register PERL_CONTEXT *cx; |
a0d0e21e | 3336 | SV *sv; |
5c144d81 | 3337 | const char *name; |
6132ea6c | 3338 | STRLEN len; |
4492be7a JM |
3339 | char * unixname; |
3340 | STRLEN unixlen; | |
62f5ad7a | 3341 | #ifdef VMS |
4492be7a | 3342 | int vms_unixname = 0; |
62f5ad7a | 3343 | #endif |
c445ea15 AL |
3344 | const char *tryname = NULL; |
3345 | SV *namesv = NULL; | |
f54cb97a | 3346 | const I32 gimme = GIMME_V; |
bbed91b5 | 3347 | int filter_has_file = 0; |
c445ea15 | 3348 | PerlIO *tryrsfp = NULL; |
34113e50 | 3349 | SV *filter_cache = NULL; |
c445ea15 AL |
3350 | SV *filter_state = NULL; |
3351 | SV *filter_sub = NULL; | |
3352 | SV *hook_sv = NULL; | |
6ec9efec JH |
3353 | SV *encoding; |
3354 | OP *op; | |
a0d0e21e LW |
3355 | |
3356 | sv = POPs; | |
d7aa5382 | 3357 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3358 | sv = new_version(sv); |
3359 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3360 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3361 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3362 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3363 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3364 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3365 | } |
3366 | else { | |
d1029faa JP |
3367 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3368 | I32 first = 0; | |
3369 | AV *lav; | |
3370 | SV * const req = SvRV(sv); | |
85fbaab2 | 3371 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3372 | |
3373 | /* get the left hand term */ | |
502c6561 | 3374 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3375 | |
3376 | first = SvIV(*av_fetch(lav,0,0)); | |
3377 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3378 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3379 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3380 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3381 | ) { | |
3382 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3383 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3384 | SVfARG(vnormal(PL_patchlevel))); | |
3385 | } | |
3386 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3387 | SV *hintsv; |
d1029faa JP |
3388 | I32 second = 0; |
3389 | ||
3390 | if (av_len(lav)>=1) | |
3391 | second = SvIV(*av_fetch(lav,1,0)); | |
3392 | ||
3393 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3394 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3395 | (int)first, (int)second); | |
d1029faa JP |
3396 | upg_version(hintsv, TRUE); |
3397 | ||
3398 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3399 | "--this is only %"SVf", stopped", | |
3400 | SVfARG(vnormal(req)), | |
af61dbfd | 3401 | SVfARG(vnormal(sv_2mortal(hi |