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 | 56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 | 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 | 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 | 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 | 429 | } |
430 | } | |
431 | ||
9c105995 NC |
432 | static void |
433 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 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 | 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 | 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 | 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 | 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 WL |
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 WL |
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 WL |
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 WL |
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 WL |
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 | 1115 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1116 | /* add returned items to the collection (making mortal copies |
1117 | * if necessary), then clear the current temps stack frame | |
1118 | * *except* for those items. We do this splicing the items | |
1119 | * into the start of the tmps frame (so some items may be on | |
1120 | * the tmps stack twice), then moving PL_stack_floor above | |
1121 | * them, then freeing the frame. That way, the only tmps that | |
1122 | * accumulate over iterations are the return values for map. | |
1123 | * We have to do to this way so that everything gets correctly | |
1124 | * freed if we die during the map. | |
1125 | */ | |
1126 | I32 tmpsbase; | |
1127 | I32 i = items; | |
1128 | /* make space for the slice */ | |
1129 | EXTEND_MORTAL(items); | |
1130 | tmpsbase = PL_tmps_floor + 1; | |
1131 | Move(PL_tmps_stack + tmpsbase, | |
1132 | PL_tmps_stack + tmpsbase + items, | |
1133 | PL_tmps_ix - PL_tmps_floor, | |
1134 | SV*); | |
1135 | PL_tmps_ix += items; | |
1136 | ||
1137 | while (i-- > 0) { | |
1138 | SV *sv = POPs; | |
1139 | if (!SvTEMP(sv)) | |
1140 | sv = sv_mortalcopy(sv); | |
1141 | *dst-- = sv; | |
1142 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1143 | } | |
1144 | /* clear the stack frame except for the items */ | |
1145 | PL_tmps_floor += items; | |
1146 | FREETMPS; | |
1147 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1148 | i = items; | |
1149 | while (i-- > 0) | |
1150 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1151 | } |
bfed75c6 | 1152 | else { |
22023b26 TP |
1153 | /* scalar context: we don't care about which values map returns |
1154 | * (we use undef here). And so we certainly don't want to do mortal | |
1155 | * copies of meaningless values. */ | |
1156 | while (items-- > 0) { | |
b988aa42 | 1157 | (void)POPs; |
22023b26 TP |
1158 | *dst-- = &PL_sv_undef; |
1159 | } | |
b2a2a901 | 1160 | FREETMPS; |
22023b26 | 1161 | } |
a0d0e21e | 1162 | } |
b2a2a901 DM |
1163 | else { |
1164 | FREETMPS; | |
1165 | } | |
d343c3ef | 1166 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1167 | |
1168 | /* All done yet? */ | |
3280af22 | 1169 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1170 | |
1171 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1172 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1173 | (void)POPMARK; /* pop src */ |
3280af22 | 1174 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1175 | (void)POPMARK; /* pop dst */ |
3280af22 | 1176 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1177 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1178 | if (PL_op->op_private & OPpGREP_LEX) { |
1179 | SV* sv = sv_newmortal(); | |
1180 | sv_setiv(sv, items); | |
1181 | PUSHs(sv); | |
1182 | } | |
1183 | else { | |
1184 | dTARGET; | |
1185 | XPUSHi(items); | |
1186 | } | |
a0d0e21e | 1187 | } |
54310121 | 1188 | else if (gimme == G_ARRAY) |
1189 | SP += items; | |
a0d0e21e LW |
1190 | RETURN; |
1191 | } | |
1192 | else { | |
1193 | SV *src; | |
1194 | ||
d343c3ef | 1195 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1196 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1197 | |
544f3153 | 1198 | /* set $_ to the new source item */ |
3280af22 | 1199 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1200 | SvTEMP_off(src); |
59f00321 RGS |
1201 | if (PL_op->op_private & OPpGREP_LEX) |
1202 | PAD_SVl(PL_op->op_targ) = src; | |
1203 | else | |
414bf5ae | 1204 | DEFSV_set(src); |
a0d0e21e LW |
1205 | |
1206 | RETURNOP(cLOGOP->op_other); | |
1207 | } | |
1208 | } | |
1209 | ||
a0d0e21e LW |
1210 | /* Range stuff. */ |
1211 | ||
1212 | PP(pp_range) | |
1213 | { | |
97aff369 | 1214 | dVAR; |
a0d0e21e | 1215 | if (GIMME == G_ARRAY) |
1a67a97c | 1216 | return NORMAL; |
538573f7 | 1217 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1218 | return cLOGOP->op_other; |
538573f7 | 1219 | else |
1a67a97c | 1220 | return NORMAL; |
a0d0e21e LW |
1221 | } |
1222 | ||
1223 | PP(pp_flip) | |
1224 | { | |
97aff369 | 1225 | dVAR; |
39644a26 | 1226 | dSP; |
a0d0e21e LW |
1227 | |
1228 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1229 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1230 | } |
1231 | else { | |
1232 | dTOPss; | |
44f8325f | 1233 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1234 | int flip = 0; |
790090df | 1235 | |
bfed75c6 | 1236 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1237 | if (GvIO(PL_last_in_gv)) { |
1238 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1239 | } | |
1240 | else { | |
fafc274c | 1241 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1242 | if (gv && GvSV(gv)) |
1243 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1244 | } |
bfed75c6 AL |
1245 | } else { |
1246 | flip = SvTRUE(sv); | |
1247 | } | |
1248 | if (flip) { | |
a0d0e21e | 1249 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1250 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1251 | sv_setiv(targ, 1); |
3e3baf6d | 1252 | SETs(targ); |
a0d0e21e LW |
1253 | RETURN; |
1254 | } | |
1255 | else { | |
1256 | sv_setiv(targ, 0); | |
924508f0 | 1257 | SP--; |
1a67a97c | 1258 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1259 | } |
1260 | } | |
76f68e9b | 1261 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1262 | SETs(targ); |
1263 | RETURN; | |
1264 | } | |
1265 | } | |
1266 | ||
8e9bbdb9 RGS |
1267 | /* This code tries to decide if "$left .. $right" should use the |
1268 | magical string increment, or if the range is numeric (we make | |
1269 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1270 | ||
1271 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1272 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1273 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1274 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1275 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1276 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1277 | |
a0d0e21e LW |
1278 | PP(pp_flop) |
1279 | { | |
97aff369 | 1280 | dVAR; dSP; |
a0d0e21e LW |
1281 | |
1282 | if (GIMME == G_ARRAY) { | |
1283 | dPOPPOPssrl; | |
86cb7173 | 1284 | |
5b295bef RD |
1285 | SvGETMAGIC(left); |
1286 | SvGETMAGIC(right); | |
a0d0e21e | 1287 | |
8e9bbdb9 | 1288 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1289 | register IV i, j; |
1290 | IV max; | |
4fe3f0fa MHM |
1291 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1292 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1293 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1294 | i = SvIV(left); |
1295 | max = SvIV(right); | |
bbce6d69 | 1296 | if (max >= i) { |
c1ab3db2 AK |
1297 | j = max - i + 1; |
1298 | EXTEND_MORTAL(j); | |
1299 | EXTEND(SP, j); | |
bbce6d69 | 1300 | } |
c1ab3db2 AK |
1301 | else |
1302 | j = 0; | |
1303 | while (j--) { | |
901017d6 | 1304 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1305 | PUSHs(sv); |
1306 | } | |
1307 | } | |
1308 | else { | |
44f8325f | 1309 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1310 | STRLEN len; |
823a54a3 | 1311 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1312 | |
901017d6 | 1313 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1314 | SvPV_force_nolen(sv); |
89ea2908 | 1315 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1316 | XPUSHs(sv); |
b15aece3 | 1317 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1318 | break; |
a0d0e21e LW |
1319 | sv = sv_2mortal(newSVsv(sv)); |
1320 | sv_inc(sv); | |
1321 | } | |
a0d0e21e LW |
1322 | } |
1323 | } | |
1324 | else { | |
1325 | dTOPss; | |
901017d6 | 1326 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1327 | int flop = 0; |
a0d0e21e | 1328 | sv_inc(targ); |
4e3399f9 YST |
1329 | |
1330 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1331 | if (GvIO(PL_last_in_gv)) { | |
1332 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1333 | } | |
1334 | else { | |
fafc274c | 1335 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1336 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1337 | } | |
1338 | } | |
1339 | else { | |
1340 | flop = SvTRUE(sv); | |
1341 | } | |
1342 | ||
1343 | if (flop) { | |
a0d0e21e | 1344 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1345 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1346 | } |
1347 | SETs(targ); | |
1348 | } | |
1349 | ||
1350 | RETURN; | |
1351 | } | |
1352 | ||
1353 | /* Control. */ | |
1354 | ||
27da23d5 | 1355 | static const char * const context_name[] = { |
515afda2 | 1356 | "pseudo-block", |
f31522f3 | 1357 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1358 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1359 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1360 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1361 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1362 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1363 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1364 | "subroutine", |
76753e7f | 1365 | "format", |
515afda2 | 1366 | "eval", |
515afda2 | 1367 | "substitution", |
515afda2 NC |
1368 | }; |
1369 | ||
76e3520e | 1370 | STATIC I32 |
06b5626a | 1371 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1372 | { |
97aff369 | 1373 | dVAR; |
a0d0e21e | 1374 | register I32 i; |
a0d0e21e | 1375 | |
7918f24d NC |
1376 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1377 | ||
a0d0e21e | 1378 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1379 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1380 | switch (CxTYPE(cx)) { |
a0d0e21e | 1381 | case CXt_SUBST: |
a0d0e21e | 1382 | case CXt_SUB: |
7766f137 | 1383 | case CXt_FORMAT: |
a0d0e21e | 1384 | case CXt_EVAL: |
0a753a76 | 1385 | case CXt_NULL: |
a2a5de95 NC |
1386 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1387 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1388 | if (CxTYPE(cx) == CXt_NULL) |
1389 | return -1; | |
1390 | break; | |
c6fdafd0 | 1391 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1392 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1393 | case CXt_LOOP_FOR: |
1394 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1395 | { |
1396 | const char *cx_label = CxLABEL(cx); | |
1397 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1398 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1399 | (long)i, cx_label)); |
a0d0e21e LW |
1400 | continue; |
1401 | } | |
1c98cc53 | 1402 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1403 | return i; |
7e8f1eac | 1404 | } |
a0d0e21e LW |
1405 | } |
1406 | } | |
1407 | return i; | |
1408 | } | |
1409 | ||
0d863452 RH |
1410 | |
1411 | ||
e50aee73 | 1412 | I32 |
864dbfa3 | 1413 | Perl_dowantarray(pTHX) |
e50aee73 | 1414 | { |
97aff369 | 1415 | dVAR; |
f54cb97a | 1416 | const I32 gimme = block_gimme(); |
54310121 | 1417 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1418 | } | |
1419 | ||
1420 | I32 | |
864dbfa3 | 1421 | Perl_block_gimme(pTHX) |
54310121 | 1422 | { |
97aff369 | 1423 | dVAR; |
06b5626a | 1424 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1425 | if (cxix < 0) |
46fc3d4c | 1426 | return G_VOID; |
e50aee73 | 1427 | |
54310121 | 1428 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1429 | case G_VOID: |
1430 | return G_VOID; | |
54310121 | 1431 | case G_SCALAR: |
e50aee73 | 1432 | return G_SCALAR; |
54310121 | 1433 | case G_ARRAY: |
1434 | return G_ARRAY; | |
1435 | default: | |
cea2e8a9 | 1436 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1437 | /* NOTREACHED */ |
1438 | return 0; | |
54310121 | 1439 | } |
e50aee73 AD |
1440 | } |
1441 | ||
78f9721b SM |
1442 | I32 |
1443 | Perl_is_lvalue_sub(pTHX) | |
1444 | { | |
97aff369 | 1445 | dVAR; |
06b5626a | 1446 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1447 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1448 | ||
bafb2adc NC |
1449 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1450 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1451 | else |
1452 | return 0; | |
1453 | } | |
1454 | ||
76e3520e | 1455 | STATIC I32 |
901017d6 | 1456 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1457 | { |
97aff369 | 1458 | dVAR; |
a0d0e21e | 1459 | I32 i; |
7918f24d NC |
1460 | |
1461 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1462 | ||
a0d0e21e | 1463 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1464 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1465 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1466 | default: |
1467 | continue; | |
1468 | case CXt_EVAL: | |
1469 | case CXt_SUB: | |
7766f137 | 1470 | case CXt_FORMAT: |
1c98cc53 | 1471 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1472 | return i; |
1473 | } | |
1474 | } | |
1475 | return i; | |
1476 | } | |
1477 | ||
76e3520e | 1478 | STATIC I32 |
cea2e8a9 | 1479 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1480 | { |
97aff369 | 1481 | dVAR; |
a0d0e21e | 1482 | I32 i; |
a0d0e21e | 1483 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1484 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1485 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1486 | default: |
1487 | continue; | |
1488 | case CXt_EVAL: | |
1c98cc53 | 1489 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1490 | return i; |
1491 | } | |
1492 | } | |
1493 | return i; | |
1494 | } | |
1495 | ||
76e3520e | 1496 | STATIC I32 |
cea2e8a9 | 1497 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1498 | { |
97aff369 | 1499 | dVAR; |
a0d0e21e | 1500 | I32 i; |
a0d0e21e | 1501 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1502 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1503 | switch (CxTYPE(cx)) { |
a0d0e21e | 1504 | case CXt_SUBST: |
a0d0e21e | 1505 | case CXt_SUB: |
7766f137 | 1506 | case CXt_FORMAT: |
a0d0e21e | 1507 | case CXt_EVAL: |
0a753a76 | 1508 | case CXt_NULL: |
a2a5de95 NC |
1509 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1510 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1511 | if ((CxTYPE(cx)) == CXt_NULL) |
1512 | return -1; | |
1513 | break; | |
c6fdafd0 | 1514 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1515 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1516 | case CXt_LOOP_FOR: |
1517 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1518 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1519 | return i; |
1520 | } | |
1521 | } | |
1522 | return i; | |
1523 | } | |
1524 | ||
0d863452 RH |
1525 | STATIC I32 |
1526 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1527 | { | |
97aff369 | 1528 | dVAR; |
0d863452 RH |
1529 | I32 i; |
1530 | for (i = startingblock; i >= 0; i--) { | |
1531 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1532 | switch (CxTYPE(cx)) { | |
1533 | default: | |
1534 | continue; | |
1535 | case CXt_GIVEN: | |
1c98cc53 | 1536 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1537 | return i; |
3b719c58 NC |
1538 | case CXt_LOOP_PLAIN: |
1539 | assert(!CxFOREACHDEF(cx)); | |
1540 | break; | |
c6fdafd0 | 1541 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1542 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1543 | case CXt_LOOP_FOR: |
0d863452 | 1544 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1545 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1546 | return i; |
1547 | } | |
1548 | } | |
1549 | } | |
1550 | return i; | |
1551 | } | |
1552 | ||
1553 | STATIC I32 | |
1554 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1555 | { | |
97aff369 | 1556 | dVAR; |
0d863452 RH |
1557 | I32 i; |
1558 | for (i = startingblock; i >= 0; i--) { | |
1559 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1560 | switch (CxTYPE(cx)) { | |
1561 | default: | |
1562 | continue; | |
1563 | case CXt_WHEN: | |
1c98cc53 | 1564 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1565 | return i; |
1566 | } | |
1567 | } | |
1568 | return i; | |
1569 | } | |
1570 | ||
a0d0e21e | 1571 | void |
864dbfa3 | 1572 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1573 | { |
97aff369 | 1574 | dVAR; |
a0d0e21e LW |
1575 | I32 optype; |
1576 | ||
1577 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1578 | SV *sv; |
06b5626a | 1579 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1580 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1581 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1582 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1583 | case CXt_SUBST: |
1584 | POPSUBST(cx); | |
1585 | continue; /* not break */ | |
a0d0e21e | 1586 | case CXt_SUB: |
b0d9ce38 GS |
1587 | POPSUB(cx,sv); |
1588 | LEAVESUB(sv); | |
a0d0e21e LW |
1589 | break; |
1590 | case CXt_EVAL: | |
1591 | POPEVAL(cx); | |
1592 | break; | |
c6fdafd0 | 1593 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1594 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1595 | case CXt_LOOP_FOR: |
1596 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1597 | POPLOOP(cx); |
1598 | break; | |
0a753a76 | 1599 | case CXt_NULL: |
a0d0e21e | 1600 | break; |
7766f137 GS |
1601 | case CXt_FORMAT: |
1602 | POPFORMAT(cx); | |
1603 | break; | |
a0d0e21e | 1604 | } |
c90c0ff4 | 1605 | cxstack_ix--; |
a0d0e21e | 1606 | } |
1b6737cc | 1607 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1608 | } |
1609 | ||
5a844595 GS |
1610 | void |
1611 | Perl_qerror(pTHX_ SV *err) | |
1612 | { | |
97aff369 | 1613 | dVAR; |
7918f24d NC |
1614 | |
1615 | PERL_ARGS_ASSERT_QERROR; | |
1616 | ||
6b2fb389 DM |
1617 | if (PL_in_eval) { |
1618 | if (PL_in_eval & EVAL_KEEPERR) { | |
1619 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", | |
1620 | SvPV_nolen_const(err)); | |
1621 | } | |
1622 | else | |
1623 | sv_catsv(ERRSV, err); | |
1624 | } | |
5a844595 GS |
1625 | else if (PL_errors) |
1626 | sv_catsv(PL_errors, err); | |
1627 | else | |
be2597df | 1628 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1629 | if (PL_parser) |
1630 | ++PL_parser->error_count; | |
5a844595 GS |
1631 | } |
1632 | ||
bb4c52e0 | 1633 | void |
c5df3096 | 1634 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1635 | { |
27da23d5 | 1636 | dVAR; |
c5df3096 | 1637 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1638 | U8 in_eval = PL_in_eval; |
c5df3096 | 1639 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1640 | |
96d9b9cd | 1641 | if (in_eval) { |
a0d0e21e | 1642 | I32 cxix; |
a0d0e21e | 1643 | I32 gimme; |
a0d0e21e | 1644 | |
5a844595 GS |
1645 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1646 | && PL_curstackinfo->si_prev) | |
1647 | { | |
bac4b2ad | 1648 | dounwind(-1); |
d3acc0f7 | 1649 | POPSTACK; |
bac4b2ad | 1650 | } |
e336de0d | 1651 | |
a0d0e21e LW |
1652 | if (cxix >= 0) { |
1653 | I32 optype; | |
b6494f15 | 1654 | SV *namesv; |
35a4481c | 1655 | register PERL_CONTEXT *cx; |
901017d6 | 1656 | SV **newsp; |
a0d0e21e LW |
1657 | |
1658 | if (cxix < cxstack_ix) | |
1659 | dounwind(cxix); | |
1660 | ||
3280af22 | 1661 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1662 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1663 | STRLEN msglen; |
96d9b9cd | 1664 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1665 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1666 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1667 | my_exit(1); |
1668 | } | |
1669 | POPEVAL(cx); | |
b6494f15 | 1670 | namesv = cx->blk_eval.old_namesv; |
a0d0e21e LW |
1671 | |
1672 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1673 | *++newsp = &PL_sv_undef; |
1674 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1675 | |
1676 | LEAVE; | |
748a9306 | 1677 | |
7fb6a879 GS |
1678 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1679 | * XXX it might be better to find a way to avoid messing with | |
1680 | * PL_curcop in save_re_context() instead, but this is a more | |
1681 | * minimal fix --GSAR */ | |
1682 | PL_curcop = cx->blk_oldcop; | |
1683 | ||
7a2e2cd6 | 1684 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1685 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1686 | (void)hv_store(GvHVn(PL_incgv), |
1687 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1688 | &PL_sv_undef, 0); |
27e90453 DM |
1689 | /* note that unlike pp_entereval, pp_require isn't |
1690 | * supposed to trap errors. So now that we've popped the | |
1691 | * EVAL that pp_require pushed, and processed the error | |
1692 | * message, rethrow the error */ | |
9fed9930 NC |
1693 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1694 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1695 | } |
c5df3096 | 1696 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1697 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1698 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1699 | } |
1700 | else { | |
1701 | sv_setsv(ERRSV, exceptsv); | |
1702 | } | |
f39bc417 | 1703 | assert(CxTYPE(cx) == CXt_EVAL); |
febb3a6d | 1704 | PL_restartjmpenv = cx->blk_eval.cur_top_env; |
bb4c52e0 GG |
1705 | PL_restartop = cx->blk_eval.retop; |
1706 | JMPENV_JUMP(3); | |
1707 | /* NOTREACHED */ | |
a0d0e21e LW |
1708 | } |
1709 | } | |
87582a92 | 1710 | |
96d9b9cd | 1711 | write_to_stderr(exceptsv); |
f86702cc | 1712 | my_failure_exit(); |
1713 | /* NOTREACHED */ | |
a0d0e21e LW |
1714 | } |
1715 | ||
1716 | PP(pp_xor) | |
1717 | { | |
97aff369 | 1718 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1719 | if (SvTRUE(left) != SvTRUE(right)) |
1720 | RETSETYES; | |
1721 | else | |
1722 | RETSETNO; | |
1723 | } | |
1724 | ||
8dff4fc5 BM |
1725 | /* |
1726 | =for apidoc caller_cx | |
1727 | ||
1728 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1729 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1730 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1731 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1732 | immediately-surrounding Perl code. | |
1733 | ||
1734 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1735 | behalf of the debugger. If the stack frame requested was a sub called by | |
1736 | C<DB::sub>, the return value will be the frame for the call to | |
1737 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1738 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1739 | frame for the sub call itself. | |
1740 | ||
1741 | =cut | |
1742 | */ | |
1743 | ||
1744 | const PERL_CONTEXT * | |
1745 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1746 | { |
a0d0e21e | 1747 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1748 | register const PERL_CONTEXT *cx; |
1749 | register const PERL_CONTEXT *ccstack = cxstack; | |
1750 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1751 | |
a0d0e21e | 1752 | for (;;) { |
2c375eb9 GS |
1753 | /* we may be in a higher stacklevel, so dig down deeper */ |
1754 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1755 | top_si = top_si->si_prev; | |
1756 | ccstack = top_si->si_cxstack; | |
1757 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1758 | } | |
8dff4fc5 BM |
1759 | if (cxix < 0) |
1760 | return NULL; | |
f2a7f298 DG |
1761 | /* caller() should not report the automatic calls to &DB::sub */ |
1762 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1763 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1764 | count++; |
1765 | if (!count--) | |
1766 | break; | |
2c375eb9 | 1767 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1768 | } |
2c375eb9 GS |
1769 | |
1770 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1771 | if (dbcxp) *dbcxp = cx; |
1772 | ||
7766f137 | 1773 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1774 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1775 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1776 | field below is defined for any cx. */ |
f2a7f298 DG |
1777 | /* caller() should not report the automatic calls to &DB::sub */ |
1778 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1779 | cx = &ccstack[dbcxix]; |
06a5b730 | 1780 | } |
1781 | ||
8dff4fc5 BM |
1782 | return cx; |
1783 | } | |
1784 | ||
1785 | PP(pp_caller) | |
1786 | { | |
1787 | dVAR; | |
1788 | dSP; | |
1789 | register const PERL_CONTEXT *cx; | |
1790 | const PERL_CONTEXT *dbcx; | |
1791 | I32 gimme; | |
1792 | const char *stashname; | |
1793 | I32 count = 0; | |
1794 | ||
1795 | if (MAXARG) | |
1796 | count = POPi; | |
1797 | ||
1798 | cx = caller_cx(count, &dbcx); | |
1799 | if (!cx) { | |
1800 | if (GIMME != G_ARRAY) { | |
1801 | EXTEND(SP, 1); | |
1802 | RETPUSHUNDEF; | |
1803 | } | |
1804 | RETURN; | |
1805 | } | |
1806 | ||
ed094faf | 1807 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1808 | if (GIMME != G_ARRAY) { |
27d41816 | 1809 | EXTEND(SP, 1); |
ed094faf | 1810 | if (!stashname) |
3280af22 | 1811 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1812 | else { |
1813 | dTARGET; | |
ed094faf | 1814 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1815 | PUSHs(TARG); |
1816 | } | |
a0d0e21e LW |
1817 | RETURN; |
1818 | } | |
a0d0e21e | 1819 | |
b3ca2e83 | 1820 | EXTEND(SP, 11); |
27d41816 | 1821 | |
ed094faf | 1822 | if (!stashname) |
3280af22 | 1823 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1824 | else |
6e449a3a MHM |
1825 | mPUSHs(newSVpv(stashname, 0)); |
1826 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1827 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1828 | if (!MAXARG) |
1829 | RETURN; | |
7766f137 | 1830 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1831 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1832 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1833 | if (isGV(cvgv)) { |
561b68a9 | 1834 | SV * const sv = newSV(0); |
c445ea15 | 1835 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1836 | mPUSHs(sv); |
bf38a478 | 1837 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1838 | } |
1839 | else { | |
84bafc02 | 1840 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1841 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1842 | } |
a0d0e21e LW |
1843 | } |
1844 | else { | |
84bafc02 | 1845 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1846 | mPUSHi(0); |
a0d0e21e | 1847 | } |
54310121 | 1848 | gimme = (I32)cx->blk_gimme; |
1849 | if (gimme == G_VOID) | |
3280af22 | 1850 | PUSHs(&PL_sv_undef); |
54310121 | 1851 | else |
98625aca | 1852 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1853 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1854 | /* eval STRING */ |
85a64632 | 1855 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1856 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1857 | PUSHs(&PL_sv_no); |
0f79a09d | 1858 | } |
811a4de9 | 1859 | /* require */ |
0f79a09d | 1860 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1861 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1862 | PUSHs(&PL_sv_yes); |
06a5b730 | 1863 | } |
811a4de9 GS |
1864 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1865 | else { | |
1866 | PUSHs(&PL_sv_undef); | |
1867 | PUSHs(&PL_sv_undef); | |
1868 | } | |
4633a7c4 | 1869 | } |
a682de96 GS |
1870 | else { |
1871 | PUSHs(&PL_sv_undef); | |
1872 | PUSHs(&PL_sv_undef); | |
1873 | } | |
bafb2adc | 1874 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1875 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1876 | { |
66a1b24b AL |
1877 | AV * const ary = cx->blk_sub.argarray; |
1878 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1879 | |
5b235299 NC |
1880 | if (!PL_dbargs) |
1881 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1882 | |
3280af22 NIS |
1883 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1884 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1885 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1886 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1887 | } |
f3aa04c2 GS |
1888 | /* XXX only hints propagated via op_private are currently |
1889 | * visible (others are not easily accessible, since they | |
1890 | * use the global PL_hints) */ | |
6e449a3a | 1891 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1892 | { |
1893 | SV * mask ; | |
72dc9ed5 | 1894 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1895 | |
ac27b0f5 | 1896 | if (old_warnings == pWARN_NONE || |
114bafba | 1897 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1898 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1899 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1900 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1901 | /* Get the bit mask for $warnings::Bits{all}, because | |
1902 | * it could have been extended by warnings::register */ | |
1903 | SV **bits_all; | |
6673a63c | 1904 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1905 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1906 | mask = newSVsv(*bits_all); |
1907 | } | |
1908 | else { | |
1909 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1910 | } | |
1911 | } | |
e476b1b5 | 1912 | else |
72dc9ed5 | 1913 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1914 | mPUSHs(mask); |
e476b1b5 | 1915 | } |
b3ca2e83 | 1916 | |
c28fe1ec | 1917 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1918 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1919 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1920 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1921 | : &PL_sv_undef); |
a0d0e21e LW |
1922 | RETURN; |
1923 | } | |
1924 | ||
a0d0e21e LW |
1925 | PP(pp_reset) |
1926 | { | |
97aff369 | 1927 | dVAR; |
39644a26 | 1928 | dSP; |
10edeb5d | 1929 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1930 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1931 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1932 | RETURN; |
1933 | } | |
1934 | ||
dd2155a4 DM |
1935 | /* like pp_nextstate, but used instead when the debugger is active */ |
1936 | ||
a0d0e21e LW |
1937 | PP(pp_dbstate) |
1938 | { | |
27da23d5 | 1939 | dVAR; |
533c011a | 1940 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1941 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1942 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1943 | FREETMPS; |
1944 | ||
f410a211 NC |
1945 | PERL_ASYNC_CHECK(); |
1946 | ||
5df8de69 DM |
1947 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1948 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1949 | { |
39644a26 | 1950 | dSP; |
c09156bb | 1951 | register PERL_CONTEXT *cx; |
f54cb97a | 1952 | const I32 gimme = G_ARRAY; |
eb160463 | 1953 | U8 hasargs; |
0bd48802 AL |
1954 | GV * const gv = PL_DBgv; |
1955 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1956 | |
a0d0e21e | 1957 | if (!cv) |
cea2e8a9 | 1958 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1959 | |
aea4f609 DM |
1960 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1961 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1962 | return NORMAL; |
748a9306 | 1963 | |
a57c6685 | 1964 | ENTER; |
4633a7c4 LW |
1965 | SAVETMPS; |
1966 | ||
3280af22 | 1967 | SAVEI32(PL_debug); |
55497cff | 1968 | SAVESTACK_POS(); |
3280af22 | 1969 | PL_debug = 0; |
748a9306 | 1970 | hasargs = 0; |
924508f0 | 1971 | SPAGAIN; |
748a9306 | 1972 | |
aed2304a | 1973 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1974 | CvDEPTH(cv)++; |
1975 | PUSHMARK(SP); | |
1976 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1977 | CvDEPTH(cv)--; | |
1978 | FREETMPS; | |
a57c6685 | 1979 | LEAVE; |
c127bd3a SF |
1980 | return NORMAL; |
1981 | } | |
1982 | else { | |
1983 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1984 | PUSHSUB_DB(cx); | |
1985 | cx->blk_sub.retop = PL_op->op_next; | |
1986 | CvDEPTH(cv)++; | |
1987 | SAVECOMPPAD(); | |
1988 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1989 | RETURNOP(CvSTART(cv)); | |
1990 | } | |
a0d0e21e LW |
1991 | } |
1992 | else | |
1993 | return NORMAL; | |
1994 | } | |
1995 | ||
a0d0e21e LW |
1996 | PP(pp_enteriter) |
1997 | { | |
27da23d5 | 1998 | dVAR; dSP; dMARK; |
c09156bb | 1999 | register PERL_CONTEXT *cx; |
f54cb97a | 2000 | const I32 gimme = GIMME_V; |
df530c37 | 2001 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2002 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2003 | |
d343c3ef | 2004 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2005 | SAVETMPS; |
2006 | ||
aafca525 DM |
2007 | if (PL_op->op_targ) { /* "my" variable */ |
2008 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2009 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2010 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2011 | SVs_PADSTALE, SVs_PADSTALE); | |
2012 | } | |
09edbca0 | 2013 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2014 | #ifdef USE_ITHREADS |
df530c37 | 2015 | itervar = PL_comppad; |
89e00a7c | 2016 | #else |
aafca525 | 2017 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2018 | #endif |
54b9620d | 2019 | } |
aafca525 | 2020 | else { /* symbol table variable */ |
159b6efe | 2021 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2022 | SV** svp = &GvSV(gv); |
2023 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2024 | *svp = newSV(0); |
df530c37 | 2025 | itervar = (void *)gv; |
54b9620d | 2026 | } |
4633a7c4 | 2027 | |
0d863452 RH |
2028 | if (PL_op->op_private & OPpITER_DEF) |
2029 | cxtype |= CXp_FOR_DEF; | |
2030 | ||
d343c3ef | 2031 | ENTER_with_name("loop2"); |
a0d0e21e | 2032 | |
7766f137 | 2033 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2034 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2035 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2036 | SV *maybe_ary = POPs; |
2037 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2038 | dPOPss; |
d01136d6 | 2039 | SV * const right = maybe_ary; |
984a4bea RD |
2040 | SvGETMAGIC(sv); |
2041 | SvGETMAGIC(right); | |
4fe3f0fa | 2042 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2043 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2044 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2045 | /* Make sure that no-one re-orders cop.h and breaks our | |
2046 | assumptions */ | |
2047 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
2048 | #ifdef NV_PRESERVES_UV |
2049 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
2050 | (SvNV(sv) > (NV)IV_MAX))) | |
2051 | || | |
2052 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2053 | (SvNV(right) < (NV)IV_MIN)))) | |
2054 | #else | |
2055 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2056 | || | |
2057 | ((SvNV(sv) > 0) && | |
2058 | ((SvUV(sv) > (UV)IV_MAX) || | |
2059 | (SvNV(sv) > (NV)UV_MAX))))) | |
2060 | || | |
2061 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2062 | || | |
2063 | ((SvNV(right) > 0) && | |
2064 | ((SvUV(right) > (UV)IV_MAX) || | |
2065 | (SvNV(right) > (NV)UV_MAX)))))) | |
2066 | #endif | |
076d9a11 | 2067 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2068 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2069 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2070 | #ifdef DEBUGGING |
2071 | /* for correct -Dstv display */ | |
2072 | cx->blk_oldsp = sp - PL_stack_base; | |
2073 | #endif | |
89ea2908 | 2074 | } |
3f63a782 | 2075 | else { |
d01136d6 BS |
2076 | cx->cx_type &= ~CXTYPEMASK; |
2077 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2078 | /* Make sure that no-one re-orders cop.h and breaks our | |
2079 | assumptions */ | |
2080 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2081 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2082 | cx->blk_loop.state_u.lazysv.end = right; | |
2083 | SvREFCNT_inc(right); | |
2084 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2085 | /* This will do the upgrade to SVt_PV, and warn if the value |
2086 | is uninitialised. */ | |
10516c54 | 2087 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2088 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2089 | to replace !SvOK() with a pointer to "". */ | |
2090 | if (!SvOK(right)) { | |
2091 | SvREFCNT_dec(right); | |
d01136d6 | 2092 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2093 | } |
3f63a782 | 2094 | } |
89ea2908 | 2095 | } |
d01136d6 | 2096 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2097 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2098 | SvREFCNT_inc(maybe_ary); |
2099 | cx->blk_loop.state_u.ary.ix = | |
2100 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2101 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2102 | -1; | |
ef3e5ea9 | 2103 | } |
89ea2908 | 2104 | } |
d01136d6 BS |
2105 | else { /* iterating over items on the stack */ |
2106 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2107 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2108 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2109 | } |
2110 | else { | |
d01136d6 | 2111 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2112 | } |
4633a7c4 | 2113 | } |
a0d0e21e LW |
2114 | |
2115 | RETURN; | |
2116 | } | |
2117 | ||
2118 | PP(pp_enterloop) | |
2119 | { | |
27da23d5 | 2120 | dVAR; dSP; |
c09156bb | 2121 | register PERL_CONTEXT *cx; |
f54cb97a | 2122 | const I32 gimme = GIMME_V; |
a0d0e21e | 2123 | |
d343c3ef | 2124 | ENTER_with_name("loop1"); |
a0d0e21e | 2125 | SAVETMPS; |
d343c3ef | 2126 | ENTER_with_name("loop2"); |
a0d0e21e | 2127 | |
3b719c58 NC |
2128 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2129 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2130 | |
2131 | RETURN; | |
2132 | } | |
2133 | ||
2134 | PP(pp_leaveloop) | |
2135 | { | |
27da23d5 | 2136 | dVAR; dSP; |
c09156bb | 2137 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2138 | I32 gimme; |
2139 | SV **newsp; | |
2140 | PMOP *newpm; | |
2141 | SV **mark; | |
2142 | ||
2143 | POPBLOCK(cx,newpm); | |
3b719c58 | 2144 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2145 | mark = newsp; |
a8bba7fa | 2146 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2147 | |
a1f49e72 | 2148 | TAINT_NOT; |
54310121 | 2149 | if (gimme == G_VOID) |
6f207bd3 | 2150 | NOOP; |
54310121 | 2151 | else if (gimme == G_SCALAR) { |
2152 | if (mark < SP) | |
2153 | *++newsp = sv_mortalcopy(*SP); | |
2154 | else | |
3280af22 | 2155 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2156 | } |
2157 | else { | |
a1f49e72 | 2158 | while (mark < SP) { |
a0d0e21e | 2159 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2160 | TAINT_NOT; /* Each item is independent */ |
2161 | } | |
a0d0e21e | 2162 | } |
f86702cc | 2163 | SP = newsp; |
2164 | PUTBACK; | |
2165 | ||
a8bba7fa | 2166 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2167 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2168 | |
d343c3ef GG |
2169 | LEAVE_with_name("loop2"); |
2170 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2171 | |
f86702cc | 2172 | return NORMAL; |
a0d0e21e LW |
2173 | } |
2174 | ||
2175 | PP(pp_return) | |
2176 | { | |
27da23d5 | 2177 | dVAR; dSP; dMARK; |
c09156bb | 2178 | register PERL_CONTEXT *cx; |
f86702cc | 2179 | bool popsub2 = FALSE; |
b45de488 | 2180 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2181 | I32 gimme; |
2182 | SV **newsp; | |
2183 | PMOP *newpm; | |
2184 | I32 optype = 0; | |
b6494f15 | 2185 | SV *namesv; |
b0d9ce38 | 2186 | SV *sv; |
b263a1ad | 2187 | OP *retop = NULL; |
a0d0e21e | 2188 | |
0bd48802 AL |
2189 | const I32 cxix = dopoptosub(cxstack_ix); |
2190 | ||
9850bf21 RH |
2191 | if (cxix < 0) { |
2192 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2193 | * sort block, which is a CXt_NULL | |
2194 | * not a CXt_SUB */ | |
2195 | dounwind(0); | |
d7507f74 RH |
2196 | PL_stack_base[1] = *PL_stack_sp; |
2197 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2198 | return 0; |
2199 | } | |
9850bf21 RH |
2200 | else |
2201 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2202 | } |
a0d0e21e LW |
2203 | if (cxix < cxstack_ix) |
2204 | dounwind(cxix); | |
2205 | ||
d7507f74 RH |
2206 | if (CxMULTICALL(&cxstack[cxix])) { |
2207 | gimme = cxstack[cxix].blk_gimme; | |
2208 | if (gimme == G_VOID) | |
2209 | PL_stack_sp = PL_stack_base; | |
2210 | else if (gimme == G_SCALAR) { | |
2211 | PL_stack_base[1] = *PL_stack_sp; | |
2212 | PL_stack_sp = PL_stack_base + 1; | |
2213 | } | |
9850bf21 | 2214 | return 0; |
d7507f74 | 2215 | } |
9850bf21 | 2216 | |
a0d0e21e | 2217 | POPBLOCK(cx,newpm); |
6b35e009 | 2218 | switch (CxTYPE(cx)) { |
a0d0e21e | 2219 | case CXt_SUB: |
f86702cc | 2220 | popsub2 = TRUE; |
f39bc417 | 2221 | retop = cx->blk_sub.retop; |
5dd42e15 | 2222 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2223 | break; |
2224 | case CXt_EVAL: | |
b45de488 GS |
2225 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2226 | clear_errsv = TRUE; | |
a0d0e21e | 2227 | POPEVAL(cx); |
b6494f15 | 2228 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2229 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2230 | if (CxTRYBLOCK(cx)) |
2231 | break; | |
067f92a0 | 2232 | lex_end(); |
748a9306 LW |
2233 | if (optype == OP_REQUIRE && |
2234 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2235 | { | |
54310121 | 2236 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2237 | (void)hv_delete(GvHVn(PL_incgv), |
2238 | SvPVX_const(namesv), SvCUR(namesv), | |
2239 | G_DISCARD); | |
2240 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2241 | } |
a0d0e21e | 2242 | break; |
7766f137 GS |
2243 | case CXt_FORMAT: |
2244 | POPFORMAT(cx); | |
f39bc417 | 2245 | retop = cx->blk_sub.retop; |
7766f137 | 2246 | break; |
a0d0e21e | 2247 | default: |
cea2e8a9 | 2248 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2249 | } |
2250 | ||
a1f49e72 | 2251 | TAINT_NOT; |
a0d0e21e | 2252 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2253 | if (MARK < SP) { |
2254 | if (popsub2) { | |
a8bba7fa | 2255 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2256 | if (SvTEMP(TOPs)) { |
2257 | *++newsp = SvREFCNT_inc(*SP); | |
2258 | FREETMPS; | |
2259 | sv_2mortal(*newsp); | |
959e3673 GS |
2260 | } |
2261 | else { | |
2262 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2263 | FREETMPS; |
959e3673 GS |
2264 | *++newsp = sv_mortalcopy(sv); |
2265 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2266 | } |
959e3673 GS |
2267 | } |
2268 | else | |
a29cdaf0 | 2269 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2270 | } |
2271 | else | |
a29cdaf0 | 2272 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2273 | } |
2274 | else | |
3280af22 | 2275 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2276 | } |
54310121 | 2277 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2278 | while (++MARK <= SP) { |
f86702cc | 2279 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2280 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2281 | TAINT_NOT; /* Each item is independent */ |
2282 | } | |
a0d0e21e | 2283 | } |
3280af22 | 2284 | PL_stack_sp = newsp; |
a0d0e21e | 2285 | |
5dd42e15 | 2286 | LEAVE; |
f86702cc | 2287 | /* Stack values are safe: */ |
2288 | if (popsub2) { | |
5dd42e15 | 2289 | cxstack_ix--; |
b0d9ce38 | 2290 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2291 | } |
b0d9ce38 | 2292 | else |
c445ea15 | 2293 | sv = NULL; |
3280af22 | 2294 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2295 | |
b0d9ce38 | 2296 | LEAVESUB(sv); |
8433848b | 2297 | if (clear_errsv) { |
ab69dbc2 | 2298 | CLEAR_ERRSV(); |
8433848b | 2299 | } |
f39bc417 | 2300 | return retop; |
a0d0e21e LW |
2301 | } |
2302 | ||
2303 | PP(pp_last) | |
2304 | { | |
27da23d5 | 2305 | dVAR; dSP; |
a0d0e21e | 2306 | I32 cxix; |
c09156bb | 2307 | register PERL_CONTEXT *cx; |
f86702cc | 2308 | I32 pop2 = 0; |
a0d0e21e | 2309 | I32 gimme; |
8772537c | 2310 | I32 optype; |
b263a1ad | 2311 | OP *nextop = NULL; |
a0d0e21e LW |
2312 | SV **newsp; |
2313 | PMOP *newpm; | |
a8bba7fa | 2314 | SV **mark; |
c445ea15 | 2315 | SV *sv = NULL; |
9d4ba2ae | 2316 | |
a0d0e21e | 2317 | |
533c011a | 2318 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2319 | cxix = dopoptoloop(cxstack_ix); |
2320 | if (cxix < 0) | |
a651a37d | 2321 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2322 | } |
2323 | else { | |
2324 | cxix = dopoptolabel(cPVOP->op_pv); | |
2325 | if (cxix < 0) | |
cea2e8a9 | 2326 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2327 | } |
2328 | if (cxix < cxstack_ix) | |
2329 | dounwind(cxix); | |
2330 | ||
2331 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2332 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2333 | mark = newsp; |
6b35e009 | 2334 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2335 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2336 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2337 | case CXt_LOOP_FOR: |
2338 | case CXt_LOOP_PLAIN: | |
2339 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2340 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2341 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2342 | break; |
f86702cc | 2343 | case CXt_SUB: |
f86702cc | 2344 | pop2 = CXt_SUB; |
f39bc417 | 2345 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2346 | break; |
f86702cc | 2347 | case CXt_EVAL: |
2348 | POPEVAL(cx); | |
f39bc417 | 2349 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2350 | break; |
7766f137 GS |
2351 | case CXt_FORMAT: |
2352 | POPFORMAT(cx); | |
f39bc417 | 2353 | nextop = cx->blk_sub.retop; |
7766f137 | 2354 | break; |
a0d0e21e | 2355 | default: |
cea2e8a9 | 2356 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2357 | } |
2358 | ||
a1f49e72 | 2359 | TAINT_NOT; |
a0d0e21e | 2360 | if (gimme == G_SCALAR) { |
f86702cc | 2361 | if (MARK < SP) |
2362 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2363 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2364 | else |
3280af22 | 2365 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2366 | } |
54310121 | 2367 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2368 | while (++MARK <= SP) { |
f86702cc | 2369 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2370 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2371 | TAINT_NOT; /* Each item is independent */ |
2372 | } | |
f86702cc | 2373 | } |
2374 | SP = newsp; | |
2375 | PUTBACK; | |
2376 | ||
5dd42e15 DM |
2377 | LEAVE; |
2378 | cxstack_ix--; | |
f86702cc | 2379 | /* Stack values are safe: */ |
2380 | switch (pop2) { | |
c6fdafd0 | 2381 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2382 | case CXt_LOOP_PLAIN: |
d01136d6 | 2383 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2384 | case CXt_LOOP_FOR: |
a8bba7fa | 2385 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2386 | LEAVE; |
f86702cc | 2387 | break; |
2388 | case CXt_SUB: | |
b0d9ce38 | 2389 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2390 | break; |
a0d0e21e | 2391 | } |
3280af22 | 2392 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2393 | |
b0d9ce38 | 2394 | LEAVESUB(sv); |
9d4ba2ae AL |
2395 | PERL_UNUSED_VAR(optype); |
2396 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2397 | return nextop; |
a0d0e21e LW |
2398 | } |
2399 | ||
2400 | PP(pp_next) | |
2401 | { | |
27da23d5 | 2402 | dVAR; |
a0d0e21e | 2403 | I32 cxix; |
c09156bb | 2404 | register PERL_CONTEXT *cx; |
85538317 | 2405 | I32 inner; |
a0d0e21e | 2406 | |
533c011a | 2407 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2408 | cxix = dopoptoloop(cxstack_ix); |
2409 | if (cxix < 0) | |
a651a37d | 2410 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2411 | } |
2412 | else { | |
2413 | cxix = dopoptolabel(cPVOP->op_pv); | |
2414 | if (cxix < 0) | |
cea2e8a9 | 2415 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2416 | } |
2417 | if (cxix < cxstack_ix) | |
2418 | dounwind(cxix); | |
2419 | ||
85538317 GS |
2420 | /* clear off anything above the scope we're re-entering, but |
2421 | * save the rest until after a possible continue block */ | |
2422 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2423 | TOPBLOCK(cx); |
85538317 GS |
2424 | if (PL_scopestack_ix < inner) |
2425 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2426 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2427 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2428 | } |
2429 | ||
2430 | PP(pp_redo) | |
2431 | { | |
27da23d5 | 2432 | dVAR; |
a0d0e21e | 2433 | I32 cxix; |
c09156bb | 2434 | register PERL_CONTEXT *cx; |
a0d0e21e | 2435 | I32 oldsave; |
a034e688 | 2436 | OP* redo_op; |
a0d0e21e | 2437 | |
533c011a | 2438 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2439 | cxix = dopoptoloop(cxstack_ix); |
2440 | if (cxix < 0) | |
a651a37d | 2441 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2442 | } |
2443 | else { | |
2444 | cxix = dopoptolabel(cPVOP->op_pv); | |
2445 | if (cxix < 0) | |
cea2e8a9 | 2446 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2447 | } |
2448 | if (cxix < cxstack_ix) | |
2449 | dounwind(cxix); | |
2450 | ||
022eaa24 | 2451 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2452 | if (redo_op->op_type == OP_ENTER) { |
2453 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2454 | cxstack_ix++; | |
2455 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2456 | redo_op = redo_op->op_next; | |
2457 | } | |
2458 | ||
a0d0e21e | 2459 | TOPBLOCK(cx); |
3280af22 | 2460 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2461 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2462 | FREETMPS; |
3a1b2b9e | 2463 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2464 | return redo_op; |
a0d0e21e LW |
2465 | } |
2466 | ||
0824fdcb | 2467 | STATIC OP * |
bfed75c6 | 2468 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2469 | { |
97aff369 | 2470 | dVAR; |
a0d0e21e | 2471 | OP **ops = opstack; |
bfed75c6 | 2472 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2473 | |
7918f24d NC |
2474 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2475 | ||
fc36a67e | 2476 | if (ops >= oplimit) |
cea2e8a9 | 2477 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2478 | if (o->op_type == OP_LEAVE || |
2479 | o->op_type == OP_SCOPE || | |
2480 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2481 | o->op_type == OP_LEAVESUB || |
11343788 | 2482 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2483 | { |
5dc0d613 | 2484 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2485 | if (ops >= oplimit) |
cea2e8a9 | 2486 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2487 | } |
c4aa4e48 | 2488 | *ops = 0; |
11343788 | 2489 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2490 | OP *kid; |
a0d0e21e | 2491 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2492 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2493 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2494 | const char *kid_label = CopLABEL(kCOP); | |
2495 | if (kid_label && strEQ(kid_label, label)) | |
2496 | return kid; | |
2497 | } | |
a0d0e21e | 2498 | } |
11343788 | 2499 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2500 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2501 | continue; |
ed8d0fe2 SM |
2502 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2503 | if (ops == opstack) | |
2504 | *ops++ = kid; | |
2505 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2506 | ops[-1]->op_type == OP_DBSTATE) | |
2507 | ops[-1] = kid; | |
2508 | else | |
2509 | *ops++ = kid; | |
2510 | } | |
155aba94 | 2511 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2512 | return o; |
a0d0e21e LW |
2513 | } |
2514 | } | |
c4aa4e48 | 2515 | *ops = 0; |
a0d0e21e LW |
2516 | return 0; |
2517 | } | |
2518 | ||
a0d0e21e LW |
2519 | PP(pp_goto) |
2520 | { | |
27da23d5 | 2521 | dVAR; dSP; |
cbbf8932 | 2522 | OP *retop = NULL; |
a0d0e21e | 2523 | I32 ix; |
c09156bb | 2524 | register PERL_CONTEXT *cx; |
fc36a67e | 2525 | #define GOTO_DEPTH 64 |
2526 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2527 | const char *label = NULL; |
bfed75c6 AL |
2528 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2529 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2530 | |
533c011a | 2531 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2532 | SV * const sv = POPs; |
a0d0e21e LW |
2533 | |
2534 | /* This egregious kludge implements goto &subroutine */ | |
2535 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2536 | I32 cxix; | |
c09156bb | 2537 | register PERL_CONTEXT *cx; |
ea726b52 | 2538 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2539 | SV** mark; |
2540 | I32 items = 0; | |
2541 | I32 oldsave; | |
b1464ded | 2542 | bool reified = 0; |
a0d0e21e | 2543 | |
e8f7dd13 | 2544 | retry: |
4aa0a1f7 | 2545 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2546 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2547 | if (gv) { |
7fc63493 | 2548 | GV *autogv; |
e8f7dd13 GS |
2549 | SV *tmpstr; |
2550 | /* autoloaded stub? */ | |
2551 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2552 | goto retry; | |
2553 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2554 | GvNAMELEN(gv), FALSE); | |
2555 | if (autogv && (cv = GvCV(autogv))) | |
2556 | goto retry; | |
2557 | tmpstr = sv_newmortal(); | |
c445ea15 | 2558 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2559 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2560 | } |
cea2e8a9 | 2561 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2562 | } |
2563 | ||
a0d0e21e | 2564 | /* First do some returnish stuff. */ |
b37c2d43 | 2565 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2566 | FREETMPS; |
a0d0e21e LW |
2567 | cxix = dopoptosub(cxstack_ix); |
2568 | if (cxix < 0) | |
cea2e8a9 | 2569 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2570 | if (cxix < cxstack_ix) |
2571 | dounwind(cxix); | |
2572 | TOPBLOCK(cx); | |
2d43a17f | 2573 | SPAGAIN; |
564abe23 | 2574 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2575 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2576 | if (CxREALEVAL(cx)) |
2577 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2578 | else | |
2579 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2580 | } |
9850bf21 RH |
2581 | else if (CxMULTICALL(cx)) |
2582 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2583 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2584 | /* put @_ back onto stack */ |
a0d0e21e | 2585 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2586 | |
93965878 | 2587 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2588 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2589 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2590 | SvREFCNT_dec(GvAV(PL_defgv)); |
2591 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2592 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2593 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2594 | if (AvREAL(av)) { |
b1464ded DM |
2595 | reified = 1; |
2596 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2597 | av = newAV(); |
2598 | av_extend(av, items-1); | |
11ca45c0 | 2599 | AvREIFY_only(av); |
ad64d0ec | 2600 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2601 | } |
a0d0e21e | 2602 | } |
aed2304a | 2603 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2604 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2605 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2606 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2607 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2608 | } |
a45cdc79 DM |
2609 | mark = SP; |
2610 | SP += items; | |
6b35e009 | 2611 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2612 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2613 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2614 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2615 | LEAVE_SCOPE(oldsave); |
2616 | ||
2617 | /* Now do some callish stuff. */ | |
2618 | SAVETMPS; | |
5023d17a | 2619 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2620 | if (CvISXSUB(cv)) { |
b37c2d43 | 2621 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2622 | SV **newsp; |
2623 | I32 gimme; | |
b1464ded DM |
2624 | if (reified) { |
2625 | I32 index; | |
2626 | for (index=0; index<items; index++) | |
2627 | sv_2mortal(SP[-index]); | |
2628 | } | |
1fa4e549 | 2629 | |
b37c2d43 AL |
2630 | /* XS subs don't have a CxSUB, so pop it */ |
2631 | POPBLOCK(cx, PL_curpm); | |
2632 | /* Push a mark for the start of arglist */ | |
2633 | PUSHMARK(mark); | |
2634 | PUTBACK; | |
2635 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2636 | LEAVE; |
5eff7df7 | 2637 | return retop; |
a0d0e21e LW |
2638 | } |
2639 | else { | |
b37c2d43 | 2640 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2641 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2642 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2643 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2644 | cx->cx_type = CXt_SUB; |
b150fb22 | 2645 | } |
a0d0e21e | 2646 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2647 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2648 | |
a0d0e21e LW |
2649 | CvDEPTH(cv)++; |
2650 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2651 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2652 | else { |
2b9dff67 | 2653 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2654 | sub_crush_depth(cv); |
26019298 | 2655 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2656 | } |
fd617465 DM |
2657 | SAVECOMPPAD(); |
2658 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2659 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2660 | { |
502c6561 | 2661 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2662 | |
3280af22 | 2663 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2664 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2665 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2666 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2667 | |
2668 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2669 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2670 | if (AvARRAY(av) != ary) { |
2671 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2672 | AvARRAY(av) = ary; |
a0d0e21e LW |
2673 | } |
2674 | if (items >= AvMAX(av) + 1) { | |
2675 | AvMAX(av) = items - 1; | |
2676 | Renew(ary,items+1,SV*); | |
2677 | AvALLOC(av) = ary; | |
9c6bc640 | 2678 | AvARRAY(av) = ary; |
a0d0e21e LW |
2679 | } |
2680 | } | |
a45cdc79 | 2681 | ++mark; |
a0d0e21e | 2682 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2683 | AvFILLp(av) = items - 1; |
d8b46c1b | 2684 | assert(!AvREAL(av)); |
b1464ded DM |
2685 | if (reified) { |
2686 | /* transfer 'ownership' of refcnts to new @_ */ | |
2687 | AvREAL_on(av); | |
2688 | AvREIFY_off(av); | |
2689 | } | |
a0d0e21e LW |
2690 | while (items--) { |
2691 | if (*mark) | |
2692 | SvTEMP_off(*mark); | |
2693 | mark++; | |
2694 | } | |
2695 | } | |
491527d0 | 2696 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2697 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2698 | if (PERLDB_GOTO) { |
b96d8cd9 | 2699 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2700 | if (gotocv) { |
2701 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2702 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2703 | PL_stack_sp--; |
2704 | } | |
491527d0 | 2705 | } |
1ce6579f | 2706 | } |
a0d0e21e LW |
2707 | RETURNOP(CvSTART(cv)); |
2708 | } | |
2709 | } | |
1614b0e3 | 2710 | else { |
0510663f | 2711 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2712 | if (!(do_dump || *label)) |
cea2e8a9 | 2713 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2714 | } |
a0d0e21e | 2715 | } |
533c011a | 2716 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2717 | if (! do_dump) |
cea2e8a9 | 2718 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2719 | } |
2720 | else | |
2721 | label = cPVOP->op_pv; | |
2722 | ||
f410a211 NC |
2723 | PERL_ASYNC_CHECK(); |
2724 | ||
a0d0e21e | 2725 | if (label && *label) { |
cbbf8932 | 2726 | OP *gotoprobe = NULL; |
3b2447bc | 2727 | bool leaving_eval = FALSE; |
33d34e4c | 2728 | bool in_block = FALSE; |
cbbf8932 | 2729 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2730 | |
2731 | /* find label */ | |
2732 | ||
d4c19fe8 | 2733 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2734 | *enterops = 0; |
2735 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2736 | cx = &cxstack[ix]; | |
6b35e009 | 2737 | switch (CxTYPE(cx)) { |
a0d0e21e | 2738 | case CXt_EVAL: |
3b2447bc | 2739 | leaving_eval = TRUE; |
971ecbe6 | 2740 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2741 | gotoprobe = (last_eval_cx ? |
2742 | last_eval_cx->blk_eval.old_eval_root : | |
2743 | PL_eval_root); | |
2744 | last_eval_cx = cx; | |
9c5794fe RH |
2745 | break; |
2746 | } | |
2747 | /* else fall through */ | |
c6fdafd0 | 2748 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2749 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2750 | case CXt_LOOP_FOR: |
2751 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2752 | case CXt_GIVEN: |
2753 | case CXt_WHEN: | |
a0d0e21e LW |
2754 | gotoprobe = cx->blk_oldcop->op_sibling; |
2755 | break; | |
2756 | case CXt_SUBST: | |
2757 | continue; | |
2758 | case CXt_BLOCK: | |
33d34e4c | 2759 | if (ix) { |
a0d0e21e | 2760 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2761 | in_block = TRUE; |
2762 | } else | |
3280af22 | 2763 | gotoprobe = PL_main_root; |
a0d0e21e | 2764 | break; |
b3933176 | 2765 | case CXt_SUB: |
9850bf21 | 2766 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2767 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2768 | break; | |
2769 | } | |
2770 | /* FALL THROUGH */ | |
7766f137 | 2771 | case CXt_FORMAT: |
0a753a76 | 2772 | case CXt_NULL: |
a651a37d | 2773 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2774 | default: |
2775 | if (ix) | |
cea2e8a9 | 2776 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2777 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2778 | break; |
2779 | } | |
2b597662 GS |
2780 | if (gotoprobe) { |
2781 | retop = dofindlabel(gotoprobe, label, | |
2782 | enterops, enterops + GOTO_DEPTH); | |
2783 | if (retop) | |
2784 | break; | |
2785 | } | |
3280af22 | 2786 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2787 | } |
2788 | if (!retop) | |
cea2e8a9 | 2789 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2790 | |
3b2447bc RH |
2791 | /* if we're leaving an eval, check before we pop any frames |
2792 | that we're not going to punt, otherwise the error | |
2793 | won't be caught */ | |
2794 | ||
2795 | if (leaving_eval && *enterops && enterops[1]) { | |
2796 | I32 i; | |
2797 | for (i = 1; enterops[i]; i++) | |
2798 | if (enterops[i]->op_type == OP_ENTERITER) | |
2799 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2800 | } | |
2801 | ||
b500e03b GG |
2802 | if (*enterops && enterops[1]) { |
2803 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2804 | if (enterops[i]) | |
2805 | deprecate("\"goto\" to jump into a construct"); | |
2806 | } | |
2807 | ||
a0d0e21e LW |
2808 | /* pop unwanted frames */ |
2809 | ||
2810 | if (ix < cxstack_ix) { | |
2811 | I32 oldsave; | |
2812 | ||
2813 | if (ix < 0) | |
2814 | ix = 0; | |
2815 | dounwind(ix); | |
2816 | TOPBLOCK(cx); | |
3280af22 | 2817 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2818 | LEAVE_SCOPE(oldsave); |
2819 | } | |
2820 | ||
2821 | /* push wanted frames */ | |
2822 | ||
748a9306 | 2823 | if (*enterops && enterops[1]) { |
0bd48802 | 2824 | OP * const oldop = PL_op; |
33d34e4c AE |
2825 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2826 | for (; enterops[ix]; ix++) { | |
533c011a | 2827 | PL_op = enterops[ix]; |
84902520 TB |
2828 | /* Eventually we may want to stack the needed arguments |
2829 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2830 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2831 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2832 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2833 | } |
533c011a | 2834 | PL_op = oldop; |
a0d0e21e LW |
2835 | } |
2836 | } | |
2837 | ||
2838 | if (do_dump) { | |
a5f75d66 | 2839 | #ifdef VMS |
6b88bc9c | 2840 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2841 | #endif |
3280af22 NIS |
2842 | PL_restartop = retop; |
2843 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2844 | |
2845 | my_unexec(); | |
2846 | ||
3280af22 NIS |
2847 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2848 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2849 | } |
2850 | ||
2851 | RETURNOP(retop); | |
2852 | } | |
2853 | ||
2854 | PP(pp_exit) | |
2855 | { | |
97aff369 | 2856 | dVAR; |
39644a26 | 2857 | dSP; |
a0d0e21e LW |
2858 | I32 anum; |
2859 | ||
2860 | if (MAXARG < 1) | |
2861 | anum = 0; | |
ff0cee69 | 2862 | else { |
a0d0e21e | 2863 | anum = SvIVx(POPs); |
d98f61e7 GS |
2864 | #ifdef VMS |
2865 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2866 | anum = 0; |
96e176bf | 2867 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2868 | #endif |
2869 | } | |
cc3604b1 | 2870 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2871 | #ifdef PERL_MAD |
2872 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2873 | if (anum || !(PL_minus_c && PL_madskills)) | |
2874 | my_exit(anum); | |
2875 | #else | |
a0d0e21e | 2876 | my_exit(anum); |
81d86705 | 2877 | #endif |
3280af22 | 2878 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2879 | RETURN; |
2880 | } | |
2881 | ||
a0d0e21e LW |
2882 | /* Eval. */ |
2883 | ||
0824fdcb | 2884 | STATIC void |
cea2e8a9 | 2885 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2886 | { |
504618e9 | 2887 | const char *s = SvPVX_const(sv); |
890ce7af | 2888 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2889 | I32 line = 1; |
a0d0e21e | 2890 | |
7918f24d NC |
2891 | PERL_ARGS_ASSERT_SAVE_LINES; |
2892 | ||
a0d0e21e | 2893 | while (s && s < send) { |
f54cb97a | 2894 | const char *t; |
b9f83d2f | 2895 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2896 | |
1d963ff3 | 2897 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2898 | if (t) |
2899 | t++; | |
2900 | else | |
2901 | t = send; | |
2902 | ||
2903 | sv_setpvn(tmpstr, s, t - s); | |
2904 | av_store(array, line++, tmpstr); | |
2905 | s = t; | |
2906 | } | |
2907 | } | |
2908 | ||
22f16304 RU |
2909 | /* |
2910 | =for apidoc docatch | |
2911 | ||
2912 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2913 | ||
2914 | 0 is used as continue inside eval, | |
2915 | ||
2916 | 3 is used for a die caught by an inner eval - continue inner loop | |
2917 | ||
2918 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
2919 | establish a local jmpenv to handle exception traps. | |
2920 | ||
2921 | =cut | |
2922 | */ | |
0824fdcb | 2923 | STATIC OP * |
cea2e8a9 | 2924 | S_docatch(pTHX_ OP *o) |
1e422769 | 2925 | { |
97aff369 | 2926 | dVAR; |
6224f72b | 2927 | int ret; |
06b5626a | 2928 | OP * const oldop = PL_op; |
db36c5a1 | 2929 | dJMPENV; |
1e422769 | 2930 | |
1e422769 | 2931 | #ifdef DEBUGGING |
54310121 | 2932 | assert(CATCH_GET == TRUE); |
1e422769 | 2933 | #endif |
312caa8e | 2934 | PL_op = o; |
8bffa5f8 | 2935 | |
14dd3ad8 | 2936 | JMPENV_PUSH(ret); |
6224f72b | 2937 | switch (ret) { |
312caa8e | 2938 | case 0: |
abd70938 DM |
2939 | assert(cxstack_ix >= 0); |
2940 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2941 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2942 | redo_body: |
85aaa934 | 2943 | CALLRUNOPS(aTHX); |
312caa8e CS |
2944 | break; |
2945 | case 3: | |
8bffa5f8 | 2946 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
2947 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
2948 | PL_restartjmpenv = NULL; | |
312caa8e CS |
2949 | PL_op = PL_restartop; |
2950 | PL_restartop = 0; | |
2951 | goto redo_body; | |
2952 | } | |
2953 | /* FALL THROUGH */ | |
2954 | default: | |
14dd3ad8 | 2955 | JMPENV_POP; |
533c011a | 2956 | PL_op = oldop; |
6224f72b | 2957 | JMPENV_JUMP(ret); |
1e422769 | 2958 | /* NOTREACHED */ |
1e422769 | 2959 | } |
14dd3ad8 | 2960 | JMPENV_POP; |
533c011a | 2961 | PL_op = oldop; |
5f66b61c | 2962 | return NULL; |
1e422769 | 2963 | } |
2964 | ||
ee23ad3b NC |
2965 | /* James Bond: Do you expect me to talk? |
2966 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
2967 | ||
2968 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
2969 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
2970 | ||
2971 | Currently it is not used outside the core code. Best if it stays that way. | |
2972 | */ | |
c277df42 | 2973 | OP * |
bfed75c6 | 2974 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2975 | /* sv Text to convert to OP tree. */ |
2976 | /* startop op_free() this to undo. */ | |
2977 | /* code Short string id of the caller. */ | |
2978 | { | |
27da23d5 | 2979 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2980 | PERL_CONTEXT *cx; |
2981 | SV **newsp; | |
b094c71d | 2982 | I32 gimme = G_VOID; |
c277df42 IZ |
2983 | I32 optype; |
2984 | OP dummy; | |
83ee9e09 GS |
2985 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2986 | char *tmpbuf = tbuf; | |
c277df42 | 2987 | char *safestr; |
a3985cdc | 2988 | int runtime; |
601f1833 | 2989 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2990 | STRLEN len; |
634d6919 | 2991 | bool need_catch; |
c277df42 | 2992 | |
7918f24d NC |
2993 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2994 | ||
d343c3ef | 2995 | ENTER_with_name("eval"); |
5486870f | 2996 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2997 | SAVETMPS; |
2998 | /* switch to eval mode */ | |
2999 | ||
923e4eb5 | 3000 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 3001 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 3002 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 3003 | } |
83ee9e09 | 3004 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 3005 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
3006 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
3007 | code, (unsigned long)++PL_evalseq, | |
3008 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
3009 | tmpbuf = SvPVX(sv); | |
fc009855 | 3010 | len = SvCUR(sv); |
83ee9e09 GS |
3011 | } |
3012 | else | |
d9fad198 JH |
3013 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
3014 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 3015 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3016 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3017 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3018 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
3019 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3020 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3021 | (i.e. before run-time proper). To work around the coredump that | |
3022 | ensues, we always turn GvMULTI_on for any globals that were | |
3023 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3024 | safestr = savepvn(tmpbuf, len); |
3025 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3026 | SAVEHINTS(); |
d1ca3daa | 3027 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3028 | PL_opsave = op; |
d1ca3daa | 3029 | #else |
7766f137 | 3030 | SAVEVPTR(PL_op); |
d1ca3daa | 3031 | #endif |
c277df42 | 3032 | |
a3985cdc | 3033 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 3034 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 3035 | if (runtime) |
d819b83a | 3036 | runcv = find_runcv(NULL); |
a3985cdc | 3037 | |
533c011a | 3038 | PL_op = &dummy; |
13b51b79 | 3039 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 3040 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 3041 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 3042 | PUSHEVAL(cx, 0); |
634d6919 GG |
3043 | need_catch = CATCH_GET; |
3044 | CATCH_SET(TRUE); | |
a3985cdc DM |
3045 | |
3046 | if (runtime) | |
410be5db | 3047 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 3048 | else |
410be5db | 3049 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 3050 | CATCH_SET(need_catch); |
13b51b79 | 3051 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3052 | POPEVAL(cx); |
c277df42 IZ |
3053 | |
3054 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3055 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 3056 | lex_end(); |
f3548bdc | 3057 | /* XXX DAPM do this properly one year */ |
502c6561 | 3058 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3059 | LEAVE_with_name("eval"); |
923e4eb5 | 3060 | if (IN_PERL_COMPILETIME) |
623e6609 | 3061 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3062 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3063 | op = PL_opsave; |
d1ca3daa | 3064 | #endif |
9d4ba2ae AL |
3065 | PERL_UNUSED_VAR(newsp); |
3066 | PERL_UNUSED_VAR(optype); | |
3067 | ||
410be5db | 3068 | return PL_eval_start; |
c277df42 IZ |
3069 | } |
3070 | ||
a3985cdc DM |
3071 | |
3072 | /* | |
3073 | =for apidoc find_runcv | |
3074 | ||
3075 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3076 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3077 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3078 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3079 | than in the scope of the debugger itself). |
a3985cdc DM |
3080 | |
3081 | =cut | |
3082 | */ | |
3083 | ||
3084 | CV* | |
d819b83a | 3085 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3086 | { |
97aff369 | 3087 | dVAR; |
a3985cdc | 3088 | PERL_SI *si; |
a3985cdc | 3089 | |
d819b83a DM |
3090 | if (db_seqp) |
3091 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3092 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3093 | I32 ix; |
a3985cdc | 3094 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3095 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3096 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3097 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3098 | /* skip DB:: code */ |
3099 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3100 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3101 | continue; | |
3102 | } | |
3103 | return cv; | |
3104 | } | |
a3985cdc DM |
3105 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3106 | return PL_compcv; | |
3107 | } | |
3108 | } | |
3109 | return PL_main_cv; | |
3110 | } | |
3111 | ||
3112 | ||
27e90453 DM |
3113 | /* Run yyparse() in a setjmp wrapper. Returns: |
3114 | * 0: yyparse() successful | |
3115 | * 1: yyparse() failed | |
3116 | * 3: yyparse() died | |
3117 | */ | |
3118 | STATIC int | |
28ac2b49 | 3119 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3120 | { |
3121 | int ret; | |
3122 | dJMPENV; | |
3123 | ||
3124 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3125 | JMPENV_PUSH(ret); | |
3126 | switch (ret) { | |
3127 | case 0: | |
28ac2b49 | 3128 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3129 | break; |
3130 | case 3: | |
3131 | break; | |
3132 | default: | |
3133 | JMPENV_POP; | |
3134 | JMPENV_JUMP(ret); | |
3135 | /* NOTREACHED */ | |
3136 | } | |
3137 | JMPENV_POP; | |
3138 | return ret; | |
3139 | } | |
3140 | ||
3141 | ||
a3985cdc DM |
3142 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3143 | * In the last case, startop is non-null, and contains the address of | |
3144 | * a pointer that should be set to the just-compiled code. | |
3145 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3146 | * Returns a bool indicating whether the compile was successful; if so, |
3147 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3148 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3149 | */ |
3150 | ||
410be5db | 3151 | STATIC bool |
a3985cdc | 3152 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3153 | { |
27da23d5 | 3154 | dVAR; dSP; |
46c461b5 | 3155 | OP * const saveop = PL_op; |
27e90453 DM |
3156 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3157 | int yystatus; | |
a0d0e21e | 3158 | |
27e90453 | 3159 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3160 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3161 | : EVAL_INEVAL); | |
a0d0e21e | 3162 | |
1ce6579f | 3163 | PUSHMARK(SP); |
3164 | ||
3280af22 | 3165 | SAVESPTR(PL_compcv); |
ea726b52 | 3166 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3167 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3168 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3169 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3170 | ||
a3985cdc | 3171 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3172 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3173 | |
dd2155a4 | 3174 | /* set up a scratch pad */ |
a0d0e21e | 3175 | |
dd2155a4 | 3176 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3177 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3178 | |
07055b4c | 3179 | |
81d86705 NC |
3180 | if (!PL_madskills) |
3181 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3182 | |
a0d0e21e LW |
3183 | /* make sure we compile in the right package */ |
3184 | ||
ed094faf | 3185 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3186 | SAVESPTR(PL_curstash); |
ed094faf | 3187 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3188 | } |
3c10abe3 | 3189 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3190 | SAVESPTR(PL_beginav); |
3191 | PL_beginav = newAV(); | |
3192 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3193 | SAVESPTR(PL_unitcheckav); |
3194 | PL_unitcheckav = newAV(); | |
3195 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3196 | |
81d86705 | 3197 | #ifdef PERL_MAD |
9da243ce | 3198 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3199 | PL_madskills = 0; |
3200 | #endif | |
3201 | ||
a0d0e21e LW |
3202 | /* try to compile it */ |
3203 | ||
5f66b61c | 3204 | PL_eval_root = NULL; |
3280af22 | 3205 | PL_curcop = &PL_compiling; |
fc15ae8f | 3206 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3207 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3208 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3209 | else |
3210 | CLEAR_ERRSV(); | |
27e90453 | 3211 | |
a88d97bf | 3212 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3213 | |
27e90453 DM |
3214 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3215 | * so honour CATCH_GET and trap it here if necessary */ | |
3216 | ||
28ac2b49 | 3217 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3218 | |
3219 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3220 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3221 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3222 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3223 | SV *namesv = NULL; |
9d4ba2ae | 3224 | const char *msg; |
bfed75c6 | 3225 | |
27e90453 DM |
3226 | PERL_UNUSED_VAR(newsp); |
3227 | PERL_UNUSED_VAR(optype); | |
3228 | ||
c86ffc32 DM |
3229 | /* note that if yystatus == 3, then the EVAL CX block has already |
3230 | * been popped, and various vars restored */ | |
533c011a | 3231 | PL_op = saveop; |
27e90453 | 3232 | if (yystatus != 3) { |
c86ffc32 DM |
3233 | if (PL_eval_root) { |
3234 | op_free(PL_eval_root); | |
3235 | PL_eval_root = NULL; | |
3236 | } | |
27e90453 DM |
3237 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3238 | if (!startop) { | |
3239 | POPBLOCK(cx,PL_curpm); | |
3240 | POPEVAL(cx); | |
b6494f15 | 3241 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3242 | } |
c277df42 | 3243 | } |
a0d0e21e | 3244 | lex_end(); |
27e90453 DM |
3245 | if (yystatus != 3) |
3246 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3247 | |
3248 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3249 | if (in_require) { |
b6494f15 VP |
3250 | if (!cx) { |
3251 | /* If cx is still NULL, it means that we didn't go in the | |
3252 | * POPEVAL branch. */ | |
3253 | cx = &cxstack[cxstack_ix]; | |
3254 | assert(CxTYPE(cx) == CXt_EVAL); | |
3255 | namesv = cx->blk_eval.old_namesv; | |
3256 | } | |
3257 | (void)hv_store(GvHVn(PL_incgv), | |
3258 | SvPVX_const(namesv), SvCUR(namesv), | |
3259 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3260 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3261 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3262 | } |
3263 | else if (startop) { | |
27e90453 DM |
3264 | if (yystatus != 3) { |
3265 | POPBLOCK(cx,PL_curpm); | |
3266 | POPEVAL(cx); | |
3267 | } | |
5a844595 GS |
3268 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3269 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3270 | } |
9d7f88dd | 3271 | else { |
9d7f88dd | 3272 | if (!*msg) { |
6502358f | 3273 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3274 | } |
3275 | } | |
410be5db DM |
3276 | PUSHs(&PL_sv_undef); |
3277 | PUTBACK; | |
3278 | return FALSE; | |
a0d0e21e | 3279 | } |
57843af0 | 3280 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3281 | if (startop) { |
3280af22 | 3282 | *startop = PL_eval_root; |
c277df42 | 3283 | } else |
3280af22 | 3284 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3285 | |
3286 | /* Set the context for this new optree. | |
021f53de GG |
3287 | * Propagate the context from the eval(). */ |
3288 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3289 | scalarvoid(PL_eval_root); |
7df0357e | 3290 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3291 | list(PL_eval_root); |
a0d0e21e | 3292 | else |
3280af22 | 3293 | scalar(PL_eval_root); |
a0d0e21e LW |
3294 | |
3295 | DEBUG_x(dump_eval()); | |
3296 | ||
55497cff | 3297 | /* Register with debugger: */ |
6482a30d | 3298 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3299 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3300 | if (cv) { |
3301 | dSP; | |
924508f0 | 3302 | PUSHMARK(SP); |
ad64d0ec | 3303 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3304 | PUTBACK; |
ad64d0ec | 3305 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3306 | } |
3307 | } | |
3308 | ||
8ed49485 FC |
3309 | if (PL_unitcheckav) { |
3310 | OP *es = PL_eval_start; | |
3c10abe3 | 3311 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3312 | PL_eval_start = es; |
3313 | } | |
3c10abe3 | 3314 | |
a0d0e21e LW |
3315 | /* compiled okay, so do it */ |
3316 | ||
3280af22 NIS |
3317 | CvDEPTH(PL_compcv) = 1; |
3318 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3319 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3320 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3321 | |
410be5db DM |
3322 | PUTBACK; |
3323 | return TRUE; | |
a0d0e21e LW |
3324 | } |
3325 | ||
a6c40364 | 3326 | STATIC PerlIO * |
0786552a | 3327 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3328 | { |
3329 | Stat_t st; | |
c445ea15 | 3330 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3331 | |
7918f24d NC |
3332 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3333 | ||
6b845e56 | 3334 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3335 | return NULL; |
ce8abf5f SP |
3336 | } |
3337 | ||
0786552a | 3338 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3339 | } |
3340 | ||
75c20bac | 3341 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3342 | STATIC PerlIO * |
0786552a | 3343 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3344 | { |
b295d113 TH |
3345 | PerlIO *fp; |
3346 | ||
7918f24d NC |
3347 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3348 | ||
ce9440c8 | 3349 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3350 | SV *const pmcsv = newSV(namelen + 2); |
3351 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3352 | Stat_t pmcstat; |
50b8ed39 NC |
3353 | |
3354 | memcpy(pmc, name, namelen); | |
3355 | pmc[namelen] = 'c'; | |
3356 | pmc[namelen + 1] = '\0'; | |
3357 | ||
a6c40364 | 3358 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3359 | fp = check_type_and_open(name); |
a6c40364 GS |
3360 | } |
3361 | else { | |
0786552a | 3362 | fp = check_type_and_open(pmc); |
b295d113 | 3363 | } |
a6c40364 GS |
3364 | SvREFCNT_dec(pmcsv); |
3365 | } | |
3366 | else { | |
0786552a | 3367 | fp = check_type_and_open(name); |
b295d113 | 3368 | } |
b295d113 | 3369 | return fp; |
75c20bac | 3370 | } |
7925835c | 3371 | #else |
75c20bac | 3372 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3373 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3374 | |
a0d0e21e LW |
3375 | PP(pp_require) |
3376 | { | |
27da23d5 | 3377 | dVAR; dSP; |
c09156bb | 3378 | register PERL_CONTEXT *cx; |
a0d0e21e | 3379 | SV *sv; |
5c144d81 | 3380 | const char *name; |
6132ea6c | 3381 | STRLEN len; |
4492be7a JM |
3382 | char * unixname; |
3383 | STRLEN unixlen; | |
62f5ad7a | 3384 | #ifdef VMS |
4492be7a | 3385 | int vms_unixname = 0; |
62f5ad7a | 3386 | #endif |
c445ea15 AL |
3387 | const char *tryname = NULL; |
3388 | SV *namesv = NULL; | |
f54cb97a | 3389 | const I32 gimme = GIMME_V; |
bbed91b5 | 3390 | int filter_has_file = 0; |
c445ea15 | 3391 | PerlIO *tryrsfp = NULL; |
34113e50 | 3392 | SV *filter_cache = NULL; |
c445ea15 AL |
3393 | SV *filter_state = NULL; |
3394 | SV *filter_sub = NULL; | |
3395 | SV *hook_sv = NULL; | |
6ec9efec JH |
3396 | SV *encoding; |
3397 | OP *op; | |
a0d0e21e LW |
3398 | |
3399 | sv = POPs; | |
d7aa5382 | 3400 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3401 | sv = new_version(sv); |
3402 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3403 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3404 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3405 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3406 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3407 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3408 | } |
3409 | else { | |
d1029faa JP |
3410 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3411 | I32 first = 0; | |
3412 | AV *lav; | |
3413 | SV * const req = SvRV(sv); | |
85fbaab2 | 3414 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3415 | |
3416 | /* get the left hand term */ | |
502c6561 | 3417 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3418 | |
3419 | first = SvIV(*av_fetch(lav,0,0)); | |
3420 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3421 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3422 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3423 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3424 | ) { | |
3425 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3426 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3427 | SVfARG(vnormal(PL_patchlevel))); | |
3428 | } | |
3429 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3430 | SV *hintsv; |
d1029faa JP |
3431 | I32 second = 0; |
3432 | ||
3433 | if (av_len(lav)>=1) | |
3434 | second = SvIV(*av_fetch(lav,1,0)); | |
3435 | ||
3436 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3437 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3438 | (int)first, (int)second); | |
d1029faa JP |
3439 | upg_version(hintsv, TRUE); |
3440 | ||
3441 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3442 | "--this is only %"SVf", stopped", | |
3443 | SVfARG(vnormal(req)), | |
af61dbfd | 3444 | SVfARG(vnormal(sv_2mortal(hintsv))), |
d1029faa JP |
3445 | SVfARG(vnormal(PL_patchlevel))); |
3446 | } | |
3447 | } | |
468aa647 | 3448 | } |
d7aa5382 | 3449 | |
faee19b5 | 3450 | /* We do this only with "use", not "require" or "no". */ |
da8fb5d8 DG |
3451 | if (PL_compcv && !(cUNOP->op_first->op_private & OPpCONST_NOVER)) { |
3452 | /* If we request a version >= 5.9.5, load feature.pm with the | |
3453 | * feature bundle that corresponds to the required version. */ | |
3454 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { | |
3455 | SV *const importsv = vnormal(sv); | |
3456 | *SvPVX_mutable(importsv) = ':'; | |
3457 | ENTER_with_name("load_feature"); | |
3458 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3459 | LEAVE_with_name("load_feature"); | |
3460 | } | |
3461 | /* If a version >= 5.11.0 is requested, strictures are on by default! */ | |
3462 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) { | |
3463 | PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS); | |
3464 | } | |
53eb19dd S |
3465 | } |
3466 | ||
7dfde25d | 3467 | RETPUSHYES; |
a0d0e21e | 3468 | } |
5c144d81 | 3469 | name = SvPV_const(sv, len); |
6132ea6c | 3470 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3471 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3472 | TAINT_PROPER("require"); |
4492be7a JM |
3473 | |
3474 | ||
3475 | #ifdef VMS | |
3476 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3477 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3478 | * can result in a module being pulled in more than once. | |
3479 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3480 | * name can be translated to UNIX. | |
3481 | */ | |
3482 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3483 | unixlen = strlen(unixname); | |
3484 | vms_unixname = 1; | |
3485 | } | |
3486 | else | |
3487 | #endif | |
3488 | { | |
3489 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3490 | * through. | |
3491 | */ | |
3492 | unixname = (char *) name; | |
3493 | unixlen = len; | |
3494 | } | |
44f8325f | 3495 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3496 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3497 | unixname, unixlen, 0); | |
44f8325f AL |
3498 | if ( svp ) { |
3499 | if (*svp != &PL_sv_undef) | |
3500 | RETPUSHYES; | |
3501 | else | |
087b5369 RD |
3502 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3503 | "Compilation failed in require", unixname); | |
44f8325f | 3504 | } |
4d8b06f1 | 3505 | } |
a0d0e21e LW |
3506 | |
3507 | /* prepare to compile file */ | |
3508 | ||
be4b629d | 3509 | if (path_is_absolute(name)) { |
46fc3d4c | 3510 | tryname = name; |
0786552a | 3511 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3512 | } |
be4b629d | 3513 | if (!tryrsfp) { |
44f8325f | 3514 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3515 | I32 i; |
748a9306 | 3516 | #ifdef VMS |
4492be7a | 3517 | if (vms_unixname) |
46fc3d4c | 3518 | #endif |
3519 | { | |
d0328fd7 | 3520 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3521 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3522 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3523 | |
ad64d0ec | 3524 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3525 | mg_get(dirsv); |
bbed91b5 KF |
3526 | if (SvROK(dirsv)) { |
3527 | int count; | |
a3b58a99 | 3528 | SV **svp; |
bbed91b5 KF |
3529 | SV *loader = dirsv; |
3530 | ||
e14e2dc8 NC |
3531 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3532 | && !sv_isobject(loader)) | |
3533 | { | |
502c6561 | 3534 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3535 | } |
3536 | ||
b900a521 | 3537 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3538 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3539 | tryname = SvPVX_const(namesv); |
c445ea15 | 3540 | tryrsfp = NULL; |
bbed91b5 | 3541 | |
d343c3ef | 3542 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3543 | SAVETMPS; |
3544 | EXTEND(SP, 2); | |
3545 | ||
3546 | PUSHMARK(SP); | |
3547 | PUSHs(dirsv); | |
3548 | PUSHs(sv); | |
3549 | PUTBACK; | |
e982885c NC |
3550 | if (sv_isobject(loader)) |
3551 | count = call_method("INC", G_ARRAY); | |
3552 | else | |
3553 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3554 | SPAGAIN; |
3555 | ||
3556 | if (count > 0) { | |
3557 | int i = 0; | |
3558 | SV *arg; | |
3559 | ||
3560 | SP -= count - 1; | |
3561 | arg = SP[i++]; | |
3562 | ||
34113e50 NC |
3563 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3564 | && !isGV_with_GP(SvRV(arg))) { | |
3565 | filter_cache = SvRV(arg); | |
74c765eb | 3566 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3567 | |
3568 | if (i < count) { | |
3569 | arg = SP[i++]; | |
3570 | } | |
3571 | } | |
3572 | ||
6e592b3a | 3573 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3574 | arg = SvRV(arg); |
3575 | } | |
3576 | ||
6e592b3a | 3577 | if (isGV_with_GP(arg)) { |
159b6efe | 3578 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3579 | |
3580 | ++filter_has_file; | |
3581 | ||
3582 | if (io) { | |
3583 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3584 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3585 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3586 | } |
0f7de14d NC |
3587 | IoIFP(io) = NULL; |
3588 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3589 | } |
3590 | ||
3591 | if (i < count) { | |
3592 | arg = SP[i++]; | |
3593 | } | |
3594 | } | |
3595 | ||
3596 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3597 | filter_sub = arg; | |
74c765eb | 3598 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3599 | |
3600 | if (i < count) { | |
3601 | filter_state = SP[i]; | |
b37c2d43 | 3602 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3603 | } |
34113e50 | 3604 | } |
bbed91b5 | 3605 | |
34113e50 NC |
3606 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3607 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3608 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3609 | } |
1d06aecd | 3610 | SP--; |
bbed91b5 KF |
3611 | } |
3612 | ||
3613 | PUTBACK; | |
3614 | FREETMPS; | |
d343c3ef | 3615 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3616 | |
c5f55552 NC |
3617 | /* Adjust file name if the hook has set an %INC entry. |
3618 | This needs to happen after the FREETMPS above. */ | |
3619 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3620 | if (svp) | |
3621 | tryname = SvPV_nolen_const(*svp); | |
3622 | ||
bbed91b5 | 3623 | if (tryrsfp) { |
89ccab8c | 3624 | hook_sv = dirsv; |
bbed91b5 KF |
3625 | break; |
3626 | } | |
3627 | ||
3628 | filter_has_file = 0; | |
34113e50 NC |
3629 | if (filter_cache) { |
3630 | SvREFCNT_dec(filter_cache); | |
3631 | filter_cache = NULL; | |
3632 | } | |
bbed91b5 KF |
3633 | if (filter_state) { |
3634 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3635 | filter_state = NULL; |
bbed91b5 KF |
3636 | } |
3637 | if (filter_sub) { | |
3638 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3639 | filter_sub = NULL; |
bbed91b5 KF |
3640 | } |
3641 | } | |
3642 | else { | |
be4b629d | 3643 | if (!path_is_absolute(name) |
be4b629d | 3644 | ) { |
b640a14a NC |
3645 | const char *dir; |
3646 | STRLEN dirlen; | |
3647 | ||
3648 | if (SvOK(dirsv)) { | |
3649 | dir = SvPV_const(dirsv, dirlen); | |
3650 | } else { | |
3651 | dir = ""; | |
3652 | dirlen = 0; | |
3653 | } | |
3654 | ||
e37778c2 | 3655 | #ifdef VMS |
bbed91b5 | 3656 | char *unixdir; |
c445ea15 | 3657 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3658 | continue; |
3659 | sv_setpv(namesv, unixdir); | |
3660 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3661 | #else |
3662 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3663 | if (PL_origfilename[0] && |
3664 | PL_origfilename[1] == ':' && | |
3665 | !(dir[0] && dir[1] == ':')) | |
3666 | Perl_sv_setpvf(aTHX_ namesv, | |
3667 | "%c:%s\\%s", | |
3668 | PL_origfilename[0], | |
3669 | dir, name); | |
3670 | else | |
3671 | Perl_sv_setpvf(aTHX_ namesv, | |
3672 | "%s\\%s", | |
3673 | dir, name); | |
e37778c2 | 3674 | # else |
b640a14a NC |
3675 | /* The equivalent of |
3676 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3677 | but without the need to parse the format string, or | |
3678 | call strlen on either pointer, and with the correct | |
3679 | allocation up front. */ | |
3680 | { | |
3681 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3682 | ||
3683 | memcpy(tmp, dir, dirlen); | |
3684 | tmp +=dirlen; | |
3685 | *tmp++ = '/'; | |
3686 | /* name came from an SV, so it will have a '\0' at the | |
3687 | end that we can copy as part of this memcpy(). */ | |
3688 | memcpy(tmp, name, len + 1); | |
3689 | ||
3690 | SvCUR_set(namesv, dirlen + len + 1); | |
3691 | ||
3692 | /* Don't even actually have to turn SvPOK_on() as we | |
3693 | access it directly with SvPVX() below. */ | |
3694 | } | |
27da23d5 | 3695 | # endif |
bf4acbe4 | 3696 | #endif |
bbed91b5 | 3697 | TAINT_PROPER("require"); |
349d4f2f | 3698 | tryname = SvPVX_const(namesv); |
0786552a | 3699 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 | 3700 | if (tryrsfp) { |
e63be746 RGS |
3701 | if (tryname[0] == '.' && tryname[1] == '/') { |
3702 | ++tryname; | |
3703 | while (*++tryname == '/'); | |
3704 | } | |
bbed91b5 KF |
3705 | break; |
3706 | } | |
ff806af2 DM |
3707 | else if (errno == EMFILE) |
3708 | /* no point in trying other paths if out of handles */ | |
3709 | break; | |
be4b629d | 3710 | } |
46fc3d4c | 3711 | } |
a0d0e21e LW |
3712 | } |
3713 | } | |
3714 | } | |
ec72681b NC |
3715 | if (tryrsfp) { |
3716 | SAVECOPFILE_FREE(&PL_compiling); | |
3717 | CopFILE_set(&PL_compiling, tryname); | |
3718 | } | |
46fc3d4c | 3719 | SvREFCNT_dec(namesv); |
a0d0e21e | 3720 | if (!tryrsfp) { |
533c011a | 3721 | if (PL_op->op_type == OP_REQUIRE) { |
e31de809 | 3722 | if(errno == EMFILE) { |
c9d5e35e NC |
3723 | /* diag_listed_as: Can't locate %s */ |
3724 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(errno)); | |
e31de809 SP |
3725 | } else { |
3726 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3727 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3728 | I32 i; |
c9d5e35e NC |
3729 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3730 | for (i = 0; i <= AvFILL(ar); i++) { | |
3731 | sv_catpvs(inc, " "); | |
3732 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3733 | } | |
3734 | ||
3735 | /* diag_listed_as: Can't locate %s */ | |
3736 | DIE(aTHX_ | |
3737 | "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")", | |
3738 | name, | |
686c4ca0 NC |
3739 | (memEQ(name + len - 2, ".h", 3) |
3740 | ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""), | |
3741 | (memEQ(name + len - 3, ".ph", 4) | |
c9d5e35e NC |
3742 | ? " (did you run h2ph?)" : ""), |
3743 | inc | |
3744 | ); | |
3745 | } | |
2683423c | 3746 | } |
c9d5e35e | 3747 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
3748 | } |
3749 | ||
3750 | RETPUSHUNDEF; | |
3751 | } | |
d8bfb8bd | 3752 | else |
93189314 | 3753 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3754 | |
3755 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3756 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3757 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3758 | if (!hook_sv) { |
4492be7a JM |
3759 | (void)hv_store(GvHVn(PL_incgv), |
3760 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3761 | } else { |
4492be7a | 3762 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3763 | if (!svp) |
4492be7a JM |
3764 | (void)hv_store(GvHVn(PL_incgv), |
3765 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3766 | } |
a0d0e21e | 3767 | |
d343c3ef | 3768 | ENTER_with_name("eval"); |
a0d0e21e | 3769 | SAVETMPS; |
5486870f | 3770 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3771 | |
b3ac6de7 | 3772 | SAVEHINTS(); |
3280af22 | 3773 | PL_hints = 0; |
f747ebd6 | 3774 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 3775 | |
68da3b2f | 3776 | SAVECOMPILEWARNINGS(); |
0453d815 | 3777 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3778 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3779 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3780 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3781 | else |
d3a7d8c7 | 3782 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3783 | |
34113e50 | 3784 | if (filter_sub || filter_cache) { |
4464f08e NC |
3785 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3786 | than hanging another SV from it. In turn, filter_add() optionally | |
3787 | takes the SV to use as the filter (or creates a new SV if passed | |
3788 | NULL), so simply pass in whatever value filter_cache has. */ | |
3789 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3790 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3791 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3792 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3793 | } |
3794 | ||
3795 | /* switch to eval mode */ | |
a0d0e21e | 3796 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3797 | PUSHEVAL(cx, name); |
f39bc417 | 3798 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3799 | |
57843af0 GS |
3800 | SAVECOPLINE(&PL_compiling); |
3801 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3802 | |
3803 | PUTBACK; | |
6ec9efec JH |
3804 | |
3805 | /* Store and reset encoding. */ | |
3806 | encoding = PL_encoding; | |
c445ea15 | 3807 | PL_encoding = NULL; |
6ec9efec | 3808 | |
410be5db DM |
3809 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3810 | op = DOCATCH(PL_eval_start); | |
3811 | else | |
3812 | op = PL_op->op_next; | |
bfed75c6 | 3813 | |
6ec9efec JH |
3814 | /* Restore encoding. */ |
3815 | PL_encoding = encoding; | |
3816 | ||
3817 | return op; | |
a0d0e21e LW |
3818 | } |
3819 | ||
996c9baa VP |
3820 | /* This is a op added to hold the hints hash for |
3821 | pp_entereval. The hash can be modified by the code | |
3822 | being eval'ed, so we return a copy instead. */ | |
3823 | ||
3824 | PP(pp_hintseval) | |
3825 | { | |
3826 | dVAR; | |
3827 | dSP; | |
defdfed5 | 3828 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3829 | RETURN; |
3830 | } | |
3831 | ||
3832 | ||
a0d0e21e LW |
3833 | PP(pp_entereval) |
3834 | { | |
27da23d5 | 3835 | dVAR; dSP; |
c09156bb | 3836 | register PERL_CONTEXT *cx; |
0d863452 | 3837 | SV *sv; |
890ce7af | 3838 | const I32 gimme = GIMME_V; |
fd06b02c | 3839 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 GS |
3840 | char tbuf[TYPE_DIGITS(long) + 12]; |
3841 | char *tmpbuf = tbuf; | |
a0d0e21e | 3842 | STRLEN len; |
a3985cdc | 3843 | CV* runcv; |
d819b83a | 3844 | U32 seq; |
c445ea15 | 3845 | HV *saved_hh = NULL; |
e389bba9 | 3846 | |
0d863452 | 3847 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3848 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3849 | } |
3850 | sv = POPs; | |
895b760f DM |
3851 | if (!SvPOK(sv)) { |
3852 | /* make sure we've got a plain PV (no overload etc) before testing | |
3853 | * for taint. Making a copy here is probably overkill, but better | |
3854 | * safe than sorry */ | |
0479a84a NC |
3855 | STRLEN len; |
3856 | const char * const p = SvPV_const(sv, len); | |
3857 | ||
3858 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
895b760f | 3859 | } |
a0d0e21e | 3860 | |
af2d3def | 3861 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3862 | TAINT_PROPER("eval"); |
a0d0e21e | 3863 | |
d343c3ef | 3864 | ENTER_with_name("eval"); |
5486870f | 3865 | lex_start(sv, NULL, FALSE); |
748a9306 | 3866 | SAVETMPS; |
ac27b0f5 | 3867 | |
a0d0e21e LW |
3868 | /* switch to eval mode */ |
3869 | ||
83ee9e09 | 3870 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3871 | SV * const temp_sv = sv_newmortal(); |
3872 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3873 | (unsigned long)++PL_evalseq, |
3874 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3875 | tmpbuf = SvPVX(temp_sv); |
3876 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3877 | } |
3878 | else | |
d9fad198 | 3879 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3880 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3881 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3882 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3883 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3884 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3885 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3886 | (i.e. before run-time proper). To work around the coredump that | |
3887 | ensues, we always turn GvMULTI_on for any globals that were | |
3888 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3889 | SAVEHINTS(); |
533c011a | 3890 | PL_hints = PL_op->op_targ; |
cda55376 AV |
3891 | if (saved_hh) { |
3892 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3893 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 3894 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 3895 | } |
68da3b2f | 3896 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3897 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3898 | if (PL_compiling.cop_hints_hash) { |
3899 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3900 | } |
d6747b7a | 3901 | if (Perl_fetch_cop_label(aTHX_ PL_curcop, NULL, NULL)) { |
47550813 NC |
3902 | /* The label, if present, is the first entry on the chain. So rather |
3903 | than writing a blank label in front of it (which involves an | |
3904 | allocation), just use the next entry in the chain. */ | |
3905 | PL_compiling.cop_hints_hash | |
3906 | = PL_curcop->cop_hints_hash->refcounted_he_next; | |
3907 | /* Check the assumption that this removed the label. */ | |
d6747b7a | 3908 | assert(Perl_fetch_cop_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); |
47550813 NC |
3909 | } |
3910 | else | |
3911 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; | |
c28fe1ec | 3912 | if (PL_compiling.cop_hints_hash) { |
cbb1fbea | 3913 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3914 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3915 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3916 | } |
d819b83a DM |
3917 | /* special case: an eval '' executed within the DB package gets lexically |
3918 | * placed in the first non-DB CV rather than the current CV - this | |
3919 | * allows the debugger to execute code, find lexicals etc, in the | |
3920 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3921 | * to do the dirty work for us */ | |
3922 | runcv = find_runcv(&seq); | |
a0d0e21e | 3923 | |
6b35e009 | 3924 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 3925 | PUSHEVAL(cx, 0); |
f39bc417 | 3926 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3927 | |
3928 | /* prepare to compile string */ | |
3929 | ||
a44e3ce2 | 3930 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 3931 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3932 | PUTBACK; |
f9bddea7 NC |
3933 | |
3934 | if (doeval(gimme, NULL, runcv, seq)) { | |
3935 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
3936 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3937 | : PERLDB_SAVESRC_NOSUBS) { | |
3938 | /* Retain the filegv we created. */ | |
3939 | } else { | |
3940 | char *const safestr = savepvn(tmpbuf, len); | |
3941 | SAVEDELETE(PL_defstash, safestr, len); | |
3942 | } | |
3943 | return DOCATCH(PL_eval_start); | |
3944 | } else { | |
3945 | /* We have already left the scope set up earler thanks to the LEAVE | |
3946 | in doeval(). */ | |
eb044b10 NC |
3947 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
3948 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3949 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 NC |
3950 | /* Retain the filegv we created. */ |
3951 | } else { | |
3952 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); | |
3953 | } | |
3954 | return PL_op->op_next; | |
3955 | } | |
a0d0e21e LW |
3956 | } |
3957 | ||
3958 | PP(pp_leaveeval) | |
3959 | { | |
27da23d5 | 3960 | dVAR; dSP; |
a0d0e21e LW |
3961 | register SV **mark; |
3962 | SV **newsp; | |
3963 | PMOP *newpm; | |
3964 | I32 gimme; | |
c09156bb | 3965 | register PERL_CONTEXT *cx; |
a0d0e21e | 3966 | OP *retop; |
06b5626a | 3967 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 3968 | I32 optype; |
b6494f15 | 3969 | SV *namesv; |
a0d0e21e LW |
3970 | |
3971 | POPBLOCK(cx,newpm); | |
3972 | POPEVAL(cx); | |
b6494f15 | 3973 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 3974 | retop = cx->blk_eval.retop; |
a0d0e21e | 3975 | |
a1f49e72 | 3976 | TAINT_NOT; |
54310121 | 3977 | if (gimme == G_VOID) |
3978 | MARK = newsp; | |
3979 | else if (gimme == G_SCALAR) { | |
3980 | MARK = newsp + 1; | |
3981 | if (MARK <= SP) { | |
3982 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3983 | *MARK = TOPs; | |
3984 | else | |
3985 | *MARK = sv_mortalcopy(TOPs); | |
3986 | } | |
a0d0e21e | 3987 | else { |
54310121 | 3988 | MEXTEND(mark,0); |
3280af22 | 3989 | *MARK = &PL_sv_undef; |
a0d0e21e | 3990 | } |
a7ec2b44 | 3991 | SP = MARK; |
a0d0e21e LW |
3992 | } |
3993 | else { | |
a1f49e72 CS |
3994 | /* in case LEAVE wipes old return values */ |
3995 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3996 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3997 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3998 | TAINT_NOT; /* Each item is independent */ |
3999 | } | |
4000 | } | |
a0d0e21e | 4001 | } |
3280af22 | 4002 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4003 | |
4fdae800 | 4004 | #ifdef DEBUGGING |
3280af22 | 4005 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 4006 | #endif |
3280af22 | 4007 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 4008 | lex_end(); |
4fdae800 | 4009 | |
1ce6579f | 4010 | if (optype == OP_REQUIRE && |
924508f0 | 4011 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4012 | { |
1ce6579f | 4013 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
4014 | (void)hv_delete(GvHVn(PL_incgv), |
4015 | SvPVX_const(namesv), SvCUR(namesv), | |
4016 | G_DISCARD); | |
4017 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
4018 | SVfARG(namesv)); | |
c5df3096 | 4019 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4020 | } |
4021 | else { | |
d343c3ef | 4022 | LEAVE_with_name("eval"); |
8433848b | 4023 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 4024 | CLEAR_ERRSV(); |
8433848b | 4025 | } |
a0d0e21e | 4026 | } |
a0d0e21e LW |
4027 | |
4028 | RETURNOP(retop); | |
4029 | } | |
4030 | ||
edb2152a NC |
4031 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4032 | close to the related Perl_create_eval_scope. */ | |
4033 | void | |
4034 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4035 | { |
edb2152a NC |
4036 | SV **newsp; |
4037 | PMOP *newpm; | |
4038 | I32 gimme; | |
c09156bb | 4039 | register PERL_CONTEXT *cx; |
edb2152a NC |
4040 | I32 optype; |
4041 | ||
4042 | POPBLOCK(cx,newpm); | |
4043 | POPEVAL(cx); | |
4044 | PL_curpm = newpm; | |
d343c3ef | 4045 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4046 | PERL_UNUSED_VAR(newsp); |
4047 | PERL_UNUSED_VAR(gimme); | |
4048 | PERL_UNUSED_VAR(optype); | |
4049 | } | |
a0d0e21e | 4050 | |
edb2152a NC |
4051 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4052 | also needed by Perl_fold_constants. */ | |
4053 | PERL_CONTEXT * | |
4054 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4055 | { | |
4056 | PERL_CONTEXT *cx; | |
4057 | const I32 gimme = GIMME_V; | |
4058 | ||
d343c3ef | 4059 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4060 | SAVETMPS; |
4061 | ||
edb2152a | 4062 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4063 | PUSHEVAL(cx, 0); |
a0d0e21e | 4064 | |
faef0170 | 4065 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4066 | if (flags & G_KEEPERR) |
4067 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4068 | else |
4069 | CLEAR_ERRSV(); | |
edb2152a NC |
4070 | if (flags & G_FAKINGEVAL) { |
4071 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4072 | } | |
4073 | return cx; | |
4074 | } | |
4075 | ||
4076 | PP(pp_entertry) | |
4077 | { | |
4078 | dVAR; | |
df528165 | 4079 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4080 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4081 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4082 | } |
4083 | ||
4084 | PP(pp_leavetry) | |
4085 | { | |
27da23d5 | 4086 | dVAR; dSP; |
a0d0e21e LW |
4087 | SV **newsp; |
4088 | PMOP *newpm; | |
4089 | I32 gimme; | |
c09156bb | 4090 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
4091 | I32 optype; |
4092 | ||
4093 | POPBLOCK(cx,newpm); | |
4094 | POPEVAL(cx); | |
9d4ba2ae | 4095 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4096 | |
a1f49e72 | 4097 | TAINT_NOT; |
54310121 | 4098 | if (gimme == G_VOID) |
4099 | SP = newsp; | |
4100 | else if (gimme == G_SCALAR) { | |
c445ea15 | 4101 | register SV **mark; |
54310121 | 4102 | MARK = newsp + 1; |
4103 | if (MARK <= SP) { | |
4104 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4105 | *MARK = TOPs; | |
4106 | else | |
4107 | *MARK = sv_mortalcopy(TOPs); | |
4108 | } | |
a0d0e21e | 4109 | else { |
54310121 | 4110 | MEXTEND(mark,0); |
3280af22 | 4111 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
4112 | } |
4113 | SP = MARK; | |
4114 | } | |
4115 | else { | |
a1f49e72 | 4116 | /* in case LEAVE wipes old return values */ |
c445ea15 | 4117 | register SV **mark; |
a1f49e72 CS |
4118 | for (mark = newsp + 1; mark <= SP; mark++) { |
4119 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 4120 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
4121 | TAINT_NOT; /* Each item is independent */ |
4122 | } | |
4123 | } | |
a0d0e21e | 4124 | } |
3280af22 | 4125 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4126 | |
d343c3ef | 4127 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4128 | CLEAR_ERRSV(); |
745cf2ff | 4129 | RETURN; |
a0d0e21e LW |
4130 | } |
4131 | ||
0d863452 RH |
4132 | PP(pp_entergiven) |
4133 | { | |
4134 | dVAR; dSP; | |
4135 | register PERL_CONTEXT *cx; | |
4136 | const I32 gimme = GIMME_V; | |
4137 | ||
d343c3ef | 4138 | ENTER_with_name("given"); |
0d863452 RH |
4139 | SAVETMPS; |
4140 | ||
bb74b0ee | 4141 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
4142 | |
4143 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4144 | PUSHGIVEN(cx); | |
4145 | ||
4146 | RETURN; | |
4147 | } | |
4148 | ||
4149 | PP(pp_leavegiven) | |
4150 | { | |
4151 | dVAR; dSP; | |
4152 | register PERL_CONTEXT *cx; | |
4153 | I32 gimme; | |
4154 | SV **newsp; | |
4155 | PMOP *newpm; | |
96a5add6 | 4156 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4157 | |
4158 | POPBLOCK(cx,newpm); | |
4159 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4160 | |
25b991bf VP |
4161 | TAINT_NOT; |
4162 | if (gimme == G_VOID) | |
4163 | SP = newsp; | |
4164 | else if (gimme == G_SCALAR) { | |
4165 | register SV **mark; | |
4166 | MARK = newsp + 1; | |
4167 | if (MARK <= SP) { | |
4168 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4169 | *MARK = TOPs; | |
4170 | else | |
4171 | *MARK = sv_mortalcopy(TOPs); | |
4172 | } | |
4173 | else { | |
4174 | MEXTEND(mark,0); | |
4175 | *MARK = &PL_sv_undef; | |
4176 | } | |
4177 | SP = MARK; | |
4178 | } | |
4179 | else { | |
4180 | /* in case LEAVE wipes old return values */ | |
4181 | register SV **mark; | |
4182 | for (mark = newsp + 1; mark <= SP; mark++) { | |
4183 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
4184 | *mark = sv_mortalcopy(*mark); | |
4185 | TAINT_NOT; /* Each item is independent */ | |
4186 | } | |
4187 | } | |
4188 | } | |
4189 | PL_curpm = newpm; /* Don't pop $1 et al till now */ | |
0d863452 | 4190 | |
d343c3ef | 4191 | LEAVE_with_name("given"); |
25b991bf | 4192 | RETURN; |
0d863452 RH |
4193 | } |
4194 | ||
4195 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4196 | STATIC PMOP * |
84679df5 | 4197 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4198 | { |
97aff369 | 4199 | dVAR; |
0d863452 | 4200 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4201 | |
4202 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4203 | ||
d6106309 | 4204 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4205 | |
0d863452 | 4206 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4207 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4208 | SAVEOP(); |
4209 | return matcher; | |
4210 | } | |
4211 | ||
4136a0f7 | 4212 | STATIC bool |
0d863452 RH |
4213 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4214 | { | |
97aff369 | 4215 | dVAR; |
0d863452 | 4216 | dSP; |
7918f24d NC |
4217 | |
4218 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4219 | |
4220 | PL_op = (OP *) matcher; | |
4221 | XPUSHs(sv); | |
4222 | PUTBACK; | |
4223 | (void) pp_match(); | |
4224 | SPAGAIN; | |
4225 | return (SvTRUEx(POPs)); | |
4226 | } | |
4227 | ||
4136a0f7 | 4228 | STATIC void |
0d863452 RH |
4229 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4230 | { | |
97aff369 | 4231 | dVAR; |
7918f24d NC |
4232 | |
4233 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4234 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4235 | |
0d863452 | 4236 | FREETMPS; |
d343c3ef | 4237 | LEAVE_with_name("matcher"); |
0d863452 RH |
4238 | } |
4239 | ||
4240 | /* Do a smart match */ | |
4241 | PP(pp_smartmatch) | |
4242 | { | |
d7c0d282 | 4243 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4244 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4245 | } |
4246 | ||
4b021f5f RGS |
4247 | /* This version of do_smartmatch() implements the |
4248 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4249 | */ |
4136a0f7 | 4250 | STATIC OP * |
0d863452 RH |
4251 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4252 | { | |
97aff369 | 4253 | dVAR; |
0d863452 RH |
4254 | dSP; |
4255 | ||
41e726ac | 4256 | bool object_on_left = FALSE; |
0d863452 RH |
4257 | SV *e = TOPs; /* e is for 'expression' */ |
4258 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4259 | |
6f1401dc DM |
4260 | /* Take care only to invoke mg_get() once for each argument. |
4261 | * Currently we do this by copying the SV if it's magical. */ | |
4262 | if (d) { | |
4263 | if (SvGMAGICAL(d)) | |
4264 | d = sv_mortalcopy(d); | |
4265 | } | |
4266 | else | |
4267 | d = &PL_sv_undef; | |
4268 | ||
4269 | assert(e); | |
4270 | if (SvGMAGICAL(e)) | |
4271 | e = sv_mortalcopy(e); | |
4272 | ||
2c9d2554 | 4273 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4274 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4275 | SV * tmpsv; |
4276 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4277 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4278 | ||
4279 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4280 | if (tmpsv) { |
4281 | SPAGAIN; | |
4282 | (void)POPs; | |
4283 | SETs(tmpsv); | |
4284 | RETURN; | |
4285 | } | |
d7c0d282 | 4286 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4287 | } |
62ec5f58 | 4288 | |
0d863452 RH |
4289 | SP -= 2; /* Pop the values */ |
4290 | ||
0d863452 | 4291 | |
b0138e99 | 4292 | /* ~~ undef */ |
62ec5f58 | 4293 | if (!SvOK(e)) { |
d7c0d282 | 4294 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4295 | if (SvOK(d)) |
33570f8b RGS |
4296 | RETPUSHNO; |
4297 | else | |
62ec5f58 | 4298 | RETPUSHYES; |
33570f8b | 4299 | } |
e67b97bd | 4300 | |
d7c0d282 DM |
4301 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4302 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4303 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4304 | } |
41e726ac RGS |
4305 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4306 | object_on_left = TRUE; | |
62ec5f58 | 4307 | |
b0138e99 | 4308 | /* ~~ sub */ |
a4a197da | 4309 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4310 | I32 c; |
41e726ac RGS |
4311 | if (object_on_left) { |
4312 | goto sm_any_sub; /* Treat objects like scalars */ | |
4313 | } | |
4314 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4315 | /* Test sub truth for each key */ |
4316 | HE *he; | |
4317 | bool andedresults = TRUE; | |
4318 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4319 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4320 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4321 | if (numkeys == 0) |
07edf497 | 4322 | RETPUSHYES; |
a4a197da | 4323 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4324 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4325 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4326 | SAVETMPS; |
4327 | PUSHMARK(SP); | |
4328 | PUSHs(hv_iterkeysv(he)); | |
4329 | PUTBACK; | |
4330 | c = call_sv(e, G_SCALAR); | |
4331 | SPAGAIN; | |
4332 | if (c == 0) | |
4333 | andedresults = FALSE; | |
4334 | else | |
4335 | andedresults = SvTRUEx(POPs) && andedresults; | |
4336 | FREETMPS; | |
d343c3ef | 4337 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4338 | } |
4339 | if (andedresults) | |
4340 | RETPUSHYES; | |
4341 | else | |
4342 | RETPUSHNO; | |
4343 | } | |
4344 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4345 | /* Test sub truth for each element */ | |
4346 | I32 i; | |
4347 | bool andedresults = TRUE; | |
4348 | AV *av = (AV*) SvRV(d); | |
4349 | const I32 len = av_len(av); | |
d7c0d282 | 4350 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4351 | if (len == -1) |
07edf497 | 4352 | RETPUSHYES; |
a4a197da RGS |
4353 | for (i = 0; i <= len; ++i) { |
4354 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4355 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4356 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4357 | SAVETMPS; |
4358 | PUSHMARK(SP); | |
4359 | if (svp) | |
4360 | PUSHs(*svp); | |
4361 | PUTBACK; | |
4362 | c = call_sv(e, G_SCALAR); | |
4363 | SPAGAIN; | |
4364 | if (c == 0) | |
4365 | andedresults = FALSE; | |
4366 | else | |
4367 | andedresults = SvTRUEx(POPs) && andedresults; | |
4368 | FREETMPS; | |
d343c3ef | 4369 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4370 | } |
4371 | if (andedresults) | |
4372 | RETPUSHYES; | |
4373 | else | |
4374 | RETPUSHNO; | |
4375 | } | |
4376 | else { | |
41e726ac | 4377 | sm_any_sub: |
d7c0d282 | 4378 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4379 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4380 | SAVETMPS; |
4381 | PUSHMARK(SP); | |
4382 | PUSHs(d); | |
4383 | PUTBACK; | |
4384 | c = call_sv(e, G_SCALAR); | |
4385 | SPAGAIN; | |
4386 | if (c == 0) | |
4387 | PUSHs(&PL_sv_no); | |
4388 | else if (SvTEMP(TOPs)) | |
4389 | SvREFCNT_inc_void(TOPs); | |
4390 | FREETMPS; | |
d343c3ef | 4391 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4392 | RETURN; |
4393 | } | |
0d863452 | 4394 | } |
b0138e99 | 4395 | /* ~~ %hash */ |
61a621c6 | 4396 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4397 | if (object_on_left) { |
4398 | goto sm_any_hash; /* Treat objects like scalars */ | |
4399 | } | |
4400 | else if (!SvOK(d)) { | |
d7c0d282 | 4401 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4402 | RETPUSHNO; |
4403 | } | |
4404 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4405 | /* Check that the key-sets are identical */ |
4406 | HE *he; | |
61a621c6 | 4407 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4408 | bool tied = FALSE; |
4409 | bool other_tied = FALSE; | |
4410 | U32 this_key_count = 0, | |
4411 | other_key_count = 0; | |
33ed63a2 | 4412 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4413 | |
4414 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4415 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4416 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4417 | tied = TRUE; |
4418 | } | |
ad64d0ec | 4419 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4420 | HV * const temp = other_hv; |
33ed63a2 RGS |
4421 | other_hv = hv; |
4422 | hv = temp; | |
0d863452 RH |
4423 | tied = TRUE; |
4424 | } | |
ad64d0ec | 4425 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4426 | other_tied = TRUE; |
4427 | ||
33ed63a2 | 4428 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4429 | RETPUSHNO; |
4430 | ||
4431 | /* The hashes have the same number of keys, so it suffices | |
4432 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4433 | (void) hv_iterinit(hv); |
4434 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4435 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4436 | |
4437 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4438 | ++ this_key_count; |
4439 | ||
b15feb55 | 4440 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4441 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4442 | RETPUSHNO; |
4443 | } | |
4444 | } | |
4445 | ||
4446 | if (other_tied) { | |
4447 | (void) hv_iterinit(other_hv); | |
4448 | while ( hv_iternext(other_hv) ) | |
4449 | ++other_key_count; | |
4450 | } | |
4451 | else | |
4452 | other_key_count = HvUSEDKEYS(other_hv); | |
4453 | ||
4454 | if (this_key_count != other_key_count) | |
4455 | RETPUSHNO; | |
4456 | else | |
4457 | RETPUSHYES; | |
4458 | } | |
61a621c6 RGS |
4459 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4460 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4461 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4462 | I32 i; |
33ed63a2 | 4463 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4464 | |
d7c0d282 | 4465 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4466 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4467 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4468 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4469 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4470 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4471 | RETPUSHYES; |
4472 | } | |
0d863452 | 4473 | } |
71b0fb34 | 4474 | RETPUSHNO; |
0d863452 | 4475 | } |
a566f585 | 4476 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4477 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4478 | sm_regex_hash: |
4479 | { | |
4480 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4481 | HE *he; | |
4482 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4483 | ||
4484 | (void) hv_iterinit(hv); | |
4485 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4486 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4487 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4488 | (void) hv_iterinit(hv); | |
4489 | destroy_matcher(matcher); | |
4490 | RETPUSHYES; | |
4491 | } | |
0d863452 | 4492 | } |
ea0c2dbd RGS |
4493 | destroy_matcher(matcher); |
4494 | RETPUSHNO; | |
0d863452 | 4495 | } |
0d863452 RH |
4496 | } |
4497 | else { | |
41e726ac | 4498 | sm_any_hash: |
d7c0d282 | 4499 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4500 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4501 | RETPUSHYES; |
4502 | else | |
4503 | RETPUSHNO; | |
4504 | } | |
4505 | } | |
b0138e99 RGS |
4506 | /* ~~ @array */ |
4507 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4508 | if (object_on_left) { |
4509 | goto sm_any_array; /* Treat objects like scalars */ | |
4510 | } | |
4511 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4512 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4513 | const I32 other_len = av_len(other_av) + 1; | |
4514 | I32 i; | |
4515 | ||
d7c0d282 | 4516 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4517 | for (i = 0; i < other_len; ++i) { |
4518 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4519 | |
4520 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4521 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4522 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4523 | RETPUSHYES; |
4524 | } | |
4525 | } | |
4526 | RETPUSHNO; | |
4527 | } | |
4528 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4529 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4530 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4531 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4532 | RETPUSHNO; |
4533 | else { | |
4534 | I32 i; | |
c445ea15 | 4535 | const I32 other_len = av_len(other_av); |
0d863452 | 4536 | |
a0714e2c | 4537 | if (NULL == seen_this) { |
0d863452 | 4538 | seen_this = newHV(); |
ad64d0ec | 4539 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4540 | } |
a0714e2c | 4541 | if (NULL == seen_other) { |
6bc991bf | 4542 | seen_other = newHV(); |
ad64d0ec | 4543 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4544 | } |
4545 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4546 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4547 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4548 | ||
0d863452 | 4549 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4550 | if ((this_elem && SvOK(*this_elem)) |
4551 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4552 | RETPUSHNO; |
4553 | } | |
365c4e3d RGS |
4554 | else if (hv_exists_ent(seen_this, |
4555 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4556 | hv_exists_ent(seen_other, | |
4557 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4558 | { |
4559 | if (*this_elem != *other_elem) | |
4560 | RETPUSHNO; | |
4561 | } | |
4562 | else { | |
04fe65b0 RGS |
4563 | (void)hv_store_ent(seen_this, |
4564 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4565 | &PL_sv_undef, 0); | |
4566 | (void)hv_store_ent(seen_other, | |
4567 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4568 | &PL_sv_undef, 0); | |
0d863452 | 4569 | PUSHs(*other_elem); |
a566f585 | 4570 | PUSHs(*this_elem); |
0d863452 RH |
4571 | |
4572 | PUTBACK; | |
d7c0d282 | 4573 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4574 | (void) do_smartmatch(seen_this, seen_other); |
4575 | SPAGAIN; | |
d7c0d282 | 4576 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4577 | |
4578 | if (!SvTRUEx(POPs)) | |
4579 | RETPUSHNO; | |
4580 | } | |
4581 | } | |
4582 | RETPUSHYES; | |
4583 | } | |
4584 | } | |
a566f585 | 4585 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4586 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4587 | sm_regex_array: |
4588 | { | |
4589 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4590 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4591 | I32 i; | |
0d863452 | 4592 | |
ea0c2dbd RGS |
4593 | for(i = 0; i <= this_len; ++i) { |
4594 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4595 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4596 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4597 | destroy_matcher(matcher); | |
4598 | RETPUSHYES; | |
4599 | } | |
0d863452 | 4600 | } |
ea0c2dbd RGS |
4601 | destroy_matcher(matcher); |
4602 | RETPUSHNO; | |
0d863452 | 4603 | } |
0d863452 | 4604 | } |
015eb7b9 RGS |
4605 | else if (!SvOK(d)) { |
4606 | /* undef ~~ array */ | |
4607 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4608 | I32 i; |
4609 | ||
d7c0d282 | 4610 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4611 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4612 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4613 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4614 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4615 | RETPUSHYES; |
4616 | } | |
4617 | RETPUSHNO; | |
4618 | } | |
015eb7b9 | 4619 | else { |
41e726ac RGS |
4620 | sm_any_array: |
4621 | { | |
4622 | I32 i; | |
4623 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4624 | |
d7c0d282 | 4625 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4626 | for (i = 0; i <= this_len; ++i) { |
4627 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4628 | if (!svp) | |
4629 | continue; | |
015eb7b9 | 4630 | |
41e726ac RGS |
4631 | PUSHs(d); |
4632 | PUSHs(*svp); | |
4633 | PUTBACK; | |
4634 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4635 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4636 | (void) do_smartmatch(NULL, NULL); |
4637 | SPAGAIN; | |
d7c0d282 | 4638 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4639 | if (SvTRUEx(POPs)) |
4640 | RETPUSHYES; | |
4641 | } | |
4642 | RETPUSHNO; | |
0d863452 | 4643 | } |
0d863452 RH |
4644 | } |
4645 | } | |
b0138e99 | 4646 | /* ~~ qr// */ |
a566f585 | 4647 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4648 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4649 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4650 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4651 | goto sm_regex_hash; |
4652 | } | |
4653 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4654 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4655 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4656 | goto sm_regex_array; |
4657 | } | |
4658 | else { | |
4659 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4660 | |
d7c0d282 | 4661 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4662 | PUTBACK; |
4663 | PUSHs(matcher_matches_sv(matcher, d) | |
4664 | ? &PL_sv_yes | |
4665 | : &PL_sv_no); | |
4666 | destroy_matcher(matcher); | |
4667 | RETURN; | |
4668 | } | |
0d863452 | 4669 | } |
b0138e99 | 4670 | /* ~~ scalar */ |
2c9d2554 RGS |
4671 | /* See if there is overload magic on left */ |
4672 | else if (object_on_left && SvAMAGIC(d)) { | |
4673 | SV *tmpsv; | |
d7c0d282 DM |
4674 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4675 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4676 | PUSHs(d); PUSHs(e); |
4677 | PUTBACK; | |
4678 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4679 | if (tmpsv) { | |
4680 | SPAGAIN; | |
4681 | (void)POPs; | |
4682 | SETs(tmpsv); | |
4683 | RETURN; | |
4684 | } | |
4685 | SP -= 2; | |
d7c0d282 | 4686 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4687 | goto sm_any_scalar; |
4688 | } | |
fb51372e RGS |
4689 | else if (!SvOK(d)) { |
4690 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4691 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4692 | RETPUSHNO; |
4693 | } | |
2c9d2554 RGS |
4694 | else |
4695 | sm_any_scalar: | |
4696 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4697 | DEBUG_M(if (SvNIOK(e)) |
4698 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4699 | else | |
4700 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4701 | ); | |
33ed63a2 | 4702 | /* numeric comparison */ |
0d863452 RH |
4703 | PUSHs(d); PUSHs(e); |
4704 | PUTBACK; | |
a98fe34d | 4705 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4706 | (void) pp_i_eq(); |
4707 | else | |
4708 | (void) pp_eq(); | |
4709 | SPAGAIN; | |
4710 | if (SvTRUEx(POPs)) | |
4711 | RETPUSHYES; | |
4712 | else | |
4713 | RETPUSHNO; | |
4714 | } | |
4715 | ||
4716 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4717 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4718 | PUSHs(d); PUSHs(e); |
4719 | PUTBACK; | |
4720 | return pp_seq(); | |
4721 | } | |
4722 | ||
4723 | PP(pp_enterwhen) | |
4724 | { | |
4725 | dVAR; dSP; | |
4726 | register PERL_CONTEXT *cx; | |
4727 | const I32 gimme = GIMME_V; | |
4728 | ||
4729 | /* This is essentially an optimization: if the match | |
4730 | fails, we don't want to push a context and then | |
4731 | pop it again right away, so we skip straight | |
4732 | to the op that follows the leavewhen. | |
25b991bf | 4733 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4734 | */ |
4735 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4736 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4737 | |
d343c3ef | 4738 | ENTER_with_name("eval"); |
0d863452 RH |
4739 | SAVETMPS; |
4740 | ||
4741 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4742 | PUSHWHEN(cx); | |
4743 | ||
4744 | RETURN; | |
4745 | } | |
4746 | ||
4747 | PP(pp_leavewhen) | |
4748 | { | |
4749 | dVAR; dSP; | |
4750 | register PERL_CONTEXT *cx; | |
4751 | I32 gimme; | |
4752 | SV **newsp; | |
4753 | PMOP *newpm; | |
4754 | ||
4755 | POPBLOCK(cx,newpm); | |
4756 | assert(CxTYPE(cx) == CXt_WHEN); | |
4757 | ||
4758 | SP = newsp; | |
4759 | PUTBACK; | |
4760 | ||
4761 | PL_curpm = newpm; /* pop $1 et al */ | |
4762 | ||
d343c3ef | 4763 | LEAVE_with_name("eval"); |
0d863452 RH |
4764 | return NORMAL; |
4765 | } | |
4766 | ||
4767 | PP(pp_continue) | |
4768 | { | |
4769 | dVAR; | |
4770 | I32 cxix; | |
4771 | register PERL_CONTEXT *cx; | |
4772 | I32 inner; | |
4773 | ||
4774 | cxix = dopoptowhen(cxstack_ix); | |
4775 | if (cxix < 0) | |
4776 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4777 | if (cxix < cxstack_ix) | |
4778 | dounwind(cxix); | |
4779 | ||
4780 | /* clear off anything above the scope we're re-entering */ | |
4781 | inner = PL_scopestack_ix; | |
4782 | TOPBLOCK(cx); | |
4783 | if (PL_scopestack_ix < inner) | |
4784 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4785 | PL_curcop = cx->blk_oldcop; | |
4786 | return cx->blk_givwhen.leave_op; | |
4787 | } | |
4788 | ||
4789 | PP(pp_break) | |
4790 | { | |
4791 | dVAR; | |
4792 | I32 cxix; | |
4793 | register PERL_CONTEXT *cx; | |
4794 | I32 inner; | |
25b991bf VP |
4795 | dSP; |
4796 | ||
0d863452 RH |
4797 | cxix = dopoptogiven(cxstack_ix); |
4798 | if (cxix < 0) { | |
4799 | if (PL_op->op_flags & OPf_SPECIAL) | |
4800 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4801 | else | |
4802 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4803 | } | |
4804 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4805 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4806 | ||
4807 | if (cxix < cxstack_ix) | |
4808 | dounwind(cxix); | |
4809 | ||
4810 | /* clear off anything above the scope we're re-entering */ | |
4811 | inner = PL_scopestack_ix; | |
4812 | TOPBLOCK(cx); | |
4813 | if (PL_scopestack_ix < inner) | |
4814 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4815 | PL_curcop = cx->blk_oldcop; | |
4816 | ||
4817 | if (CxFOREACH(cx)) | |
d57ce4df | 4818 | return (cx)->blk_loop.my_op->op_nextop; |
0d863452 | 4819 | else |
25b991bf VP |
4820 | /* RETURNOP calls PUTBACK which restores the old old sp */ |
4821 | RETURNOP(cx->blk_givwhen.leave_op); | |
0d863452 RH |
4822 | } |
4823 | ||
a1b95068 | 4824 | STATIC OP * |
cea2e8a9 | 4825 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4826 | { |
4827 | STRLEN len; | |
4828 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4829 | register char * const send = s + len; |
4830 | register char *base = NULL; | |
a0d0e21e | 4831 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4832 | bool noblank = FALSE; |
4833 | bool repeat = FALSE; | |
a0d0e21e | 4834 | bool postspace = FALSE; |
dea28490 JJ |
4835 | U32 *fops; |
4836 | register U32 *fpc; | |
cbbf8932 | 4837 | U32 *linepc = NULL; |
a0d0e21e LW |
4838 | register I32 arg; |
4839 | bool ischop; | |
a1b95068 WL |
4840 | bool unchopnum = FALSE; |
4841 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4842 | |
7918f24d NC |
4843 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4844 | ||
55497cff | 4845 | if (len == 0) |
cea2e8a9 | 4846 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4847 | |
815f25c6 DM |
4848 | /* estimate the buffer size needed */ |
4849 | for (base = s; s <= send; s++) { | |
a1b95068 | 4850 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4851 | maxops += 10; |
4852 | } | |
4853 | s = base; | |
c445ea15 | 4854 | base = NULL; |
815f25c6 | 4855 | |
a02a5408 | 4856 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4857 | fpc = fops; |
4858 | ||
4859 | if (s < send) { | |
4860 | linepc = fpc; | |
4861 | *fpc++ = FF_LINEMARK; | |
4862 | noblank = repeat = FALSE; | |
4863 | base = s; | |
4864 | } | |
4865 | ||
4866 | while (s <= send) { | |
4867 | switch (*s++) { | |
4868 | default: | |
4869 | skipspaces = 0; | |
4870 | continue; | |
4871 | ||
4872 | case '~': | |
4873 | if (*s == '~') { | |
4874 | repeat = TRUE; | |
4875 | *s = ' '; | |
4876 | } | |
4877 | noblank = TRUE; | |
4878 | s[-1] = ' '; | |
4879 | /* FALL THROUGH */ | |
4880 | case ' ': case '\t': | |
4881 | skipspaces++; | |
4882 | continue; | |
a1b95068 WL |
4883 | case 0: |
4884 | if (s < send) { | |
4885 | skipspaces = 0; | |
4886 | continue; | |
4887 | } /* else FALL THROUGH */ | |
4888 | case '\n': | |
a0d0e21e LW |
4889 | arg = s - base; |
4890 | skipspaces++; | |
4891 | arg -= skipspaces; | |
4892 | if (arg) { | |
5f05dabc | 4893 | if (postspace) |
a0d0e21e | 4894 | *fpc++ = FF_SPACE; |
a0d0e21e | 4895 | *fpc++ = FF_LITERAL; |
eb160463 | 4896 | *fpc++ = (U16)arg; |
a0d0e21e | 4897 | } |
5f05dabc | 4898 | postspace = FALSE; |
a0d0e21e LW |
4899 | if (s <= send) |
4900 | skipspaces--; | |
4901 | if (skipspaces) { | |
4902 | *fpc++ = FF_SKIP; | |
eb160463 | 4903 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4904 | } |
4905 | skipspaces = 0; | |
4906 | if (s <= send) | |
4907 | *fpc++ = FF_NEWLINE; | |
4908 | if (noblank) { | |
4909 | *fpc++ = FF_BLANK; | |
4910 | if (repeat) | |
4911 | arg = fpc - linepc + 1; | |
4912 | else | |
4913 | arg = 0; | |
eb160463 | 4914 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4915 | } |
4916 | if (s < send) { | |
4917 | linepc = fpc; | |
4918 | *fpc++ = FF_LINEMARK; | |
4919 | noblank = repeat = FALSE; | |
4920 | base = s; | |
4921 | } | |
4922 | else | |
4923 | s++; | |
4924 | continue; | |
4925 | ||
4926 | case '@': | |
4927 | case '^': | |
4928 | ischop = s[-1] == '^'; | |
4929 | ||
4930 | if (postspace) { | |
4931 | *fpc++ = FF_SPACE; | |
4932 | postspace = FALSE; | |
4933 | } | |
4934 | arg = (s - base) - 1; | |
4935 | if (arg) { | |
4936 | *fpc++ = FF_LITERAL; | |
eb160463 | 4937 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4938 | } |
4939 | ||
4940 | base = s - 1; | |
4941 | *fpc++ = FF_FETCH; | |
4942 | if (*s == '*') { | |
4943 | s++; | |
a1b95068 WL |
4944 | *fpc++ = 2; /* skip the @* or ^* */ |
4945 | if (ischop) { | |
4946 | *fpc++ = FF_LINESNGL; | |
4947 | *fpc++ = FF_CHOP; | |
4948 | } else | |
4949 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4950 | } |
4951 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4952 | arg = ischop ? 512 : 0; | |
4953 | base = s - 1; | |
4954 | while (*s == '#') | |
4955 | s++; | |
4956 | if (*s == '.') { | |
06b5626a | 4957 | const char * const f = ++s; |
a0d0e21e LW |
4958 | while (*s == '#') |
4959 | s++; | |
4960 | arg |= 256 + (s - f); | |
4961 | } | |
4962 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4963 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4964 | *fpc++ = (U16)arg; |
a1b95068 | 4965 | unchopnum |= ! ischop; |
784707d5 JP |
4966 | } |
4967 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4968 | arg = ischop ? 512 : 0; | |
4969 | base = s - 1; | |
4970 | s++; /* skip the '0' first */ | |
4971 | while (*s == '#') | |
4972 | s++; | |
4973 | if (*s == '.') { | |
06b5626a | 4974 | const char * const f = ++s; |
784707d5 JP |
4975 | while (*s == '#') |
4976 | s++; | |
4977 | arg |= 256 + (s - f); | |
4978 | } | |
4979 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4980 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4981 | *fpc++ = (U16)arg; |
a1b95068 | 4982 | unchopnum |= ! ischop; |
a0d0e21e LW |
4983 | } |
4984 | else { | |
4985 | I32 prespace = 0; | |
4986 | bool ismore = FALSE; | |
4987 | ||
4988 | if (*s == '>') { | |
4989 | while (*++s == '>') ; | |
4990 | prespace = FF_SPACE; | |
4991 | } | |
4992 | else if (*s == '|') { | |
4993 | while (*++s == '|') ; | |
4994 | prespace = FF_HALFSPACE; | |
4995 | postspace = TRUE; | |
4996 | } | |
4997 | else { | |
4998 | if (*s == '<') | |
4999 | while (*++s == '<') ; | |
5000 | postspace = TRUE; | |
5001 | } | |
5002 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5003 | s += 3; | |
5004 | ismore = TRUE; | |
5005 | } | |
5006 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5007 | ||
5008 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5009 | ||
5010 | if (prespace) | |
eb160463 | 5011 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
5012 | *fpc++ = FF_ITEM; |
5013 | if (ismore) | |
5014 | *fpc++ = FF_MORE; | |
5015 | if (ischop) | |
5016 | *fpc++ = FF_CHOP; | |
5017 | } | |
5018 | base = s; | |
5019 | skipspaces = 0; | |
5020 | continue; | |
5021 | } | |
5022 | } | |
5023 | *fpc++ = FF_END; | |
5024 | ||
815f25c6 | 5025 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
5026 | arg = fpc - fops; |
5027 | { /* need to jump to the next word */ | |
5028 | int z; | |
5029 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 5030 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
5031 | s = SvPVX(sv) + SvCUR(sv) + z; |
5032 | } | |
dea28490 | 5033 | Copy(fops, s, arg, U32); |
a0d0e21e | 5034 | Safefree(fops); |
c445ea15 | 5035 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 5036 | SvCOMPILED_on(sv); |
a1b95068 | 5037 | |
bfed75c6 | 5038 | if (unchopnum && repeat) |
a1b95068 WL |
5039 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
5040 | return 0; | |
5041 | } | |
5042 | ||
5043 | ||
5044 | STATIC bool | |
5045 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5046 | { | |
5047 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5048 | NV pwr = 1; | |
5049 | NV eps = 0.5; | |
5050 | bool res = FALSE; | |
5051 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5052 | ||
5053 | if (frcsize & 256) | |
5054 | intsize--; | |
5055 | frcsize &= 255; | |
5056 | intsize -= frcsize; | |
5057 | ||
5058 | while (intsize--) pwr *= 10.0; | |
5059 | while (frcsize--) eps /= 10.0; | |
5060 | ||
5061 | if( value >= 0 ){ | |
5062 | if (value + eps >= pwr) | |
5063 | res = TRUE; | |
5064 | } else { | |
5065 | if (value - eps <= -pwr) | |
5066 | res = TRUE; | |
5067 | } | |
5068 | return res; | |
a0d0e21e | 5069 | } |
4e35701f | 5070 | |
bbed91b5 | 5071 | static I32 |
0bd48802 | 5072 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5073 | { |
27da23d5 | 5074 | dVAR; |
0bd48802 | 5075 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5076 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5077 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5078 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5079 | int status = 0; |
ec0b63d7 | 5080 | SV *upstream; |
941a98a0 | 5081 | STRLEN got_len; |
162177c1 Z |
5082 | char *got_p = NULL; |
5083 | char *prune_from = NULL; | |
34113e50 | 5084 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
5085 | STRLEN umaxlen; |
5086 | ||
7918f24d NC |
5087 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5088 | ||
bb7a0f54 MHM |
5089 | assert(maxlen >= 0); |
5090 | umaxlen = maxlen; | |
5675696b | 5091 | |
bbed91b5 KF |
5092 | /* I was having segfault trouble under Linux 2.2.5 after a |
5093 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5094 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5095 | not sure where the trouble is yet. XXX */ |
5096 | ||
4464f08e NC |
5097 | { |
5098 | SV *const cache = datasv; | |
937b367d NC |
5099 | if (SvOK(cache)) { |
5100 | STRLEN cache_len; | |
5101 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5102 | STRLEN take = 0; |
5103 | ||
bb7a0f54 | 5104 | if (umaxlen) { |
941a98a0 NC |
5105 | /* Running in block mode and we have some cached data already. |
5106 | */ | |
bb7a0f54 | 5107 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5108 | /* In fact, so much data we don't even need to call |
5109 | filter_read. */ | |
bb7a0f54 | 5110 | take = umaxlen; |
941a98a0 NC |
5111 | } |
5112 | } else { | |
10edeb5d JH |
5113 | const char *const first_nl = |
5114 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5115 | if (first_nl) { |
5116 | take = first_nl + 1 - cache_p; | |
5117 | } | |
5118 | } | |
5119 | if (take) { | |
5120 | sv_catpvn(buf_sv, cache_p, take); | |
5121 | sv_chop(cache, cache_p + take); | |
937b367d NC |
5122 | /* Definately not EOF */ |
5123 | return 1; | |
5124 | } | |
941a98a0 | 5125 | |
937b367d | 5126 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5127 | if (umaxlen) { |
5128 | umaxlen -= cache_len; | |
941a98a0 | 5129 | } |
937b367d | 5130 | SvOK_off(cache); |
34113e50 | 5131 | read_from_cache = TRUE; |
937b367d NC |
5132 | } |
5133 | } | |
ec0b63d7 | 5134 | |
34113e50 NC |
5135 | /* Filter API says that the filter appends to the contents of the buffer. |
5136 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5137 | then clearly what it contains is already filtered by this filter, so we | |
5138 | don't want to pass it in a second time. | |
5139 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5140 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5141 | ? sv_newmortal() : buf_sv; | |
5142 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5143 | |
bbed91b5 | 5144 | if (filter_has_file) { |
67e70b33 | 5145 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5146 | } |
5147 | ||
34113e50 | 5148 | if (filter_sub && status >= 0) { |
39644a26 | 5149 | dSP; |
bbed91b5 KF |
5150 | int count; |
5151 | ||
d343c3ef | 5152 | ENTER_with_name("call_filter_sub"); |
bbed91b5 KF |
5153 | SAVE_DEFSV; |
5154 | SAVETMPS; | |
5155 | EXTEND(SP, 2); | |
5156 | ||
414bf5ae | 5157 | DEFSV_set(upstream); |
bbed91b5 | 5158 | PUSHMARK(SP); |
6e449a3a | 5159 | mPUSHi(0); |
bbed91b5 KF |
5160 | if (filter_state) { |
5161 | PUSHs(filter_state); | |
5162 | } | |
5163 | PUTBACK; | |
5164 | count = call_sv(filter_sub, G_SCALAR); | |
5165 | SPAGAIN; | |
5166 | ||
5167 | if (count > 0) { | |
5168 | SV *out = POPs; | |
5169 | if (SvOK(out)) { | |
941a98a0 | 5170 | status = SvIV(out); |
bbed91b5 KF |
5171 | } |
5172 | } | |
5173 | ||
5174 | PUTBACK; | |
5175 | FREETMPS; | |
d343c3ef | 5176 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5177 | } |
5178 | ||
941a98a0 NC |
5179 | if(SvOK(upstream)) { |
5180 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
5181 | if (umaxlen) { |
5182 | if (got_len > umaxlen) { | |
5183 | prune_from = got_p + umaxlen; | |
937b367d | 5184 | } |
941a98a0 | 5185 | } else { |
162177c1 | 5186 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5187 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5188 | /* There's a second line here... */ | |
5189 | prune_from = first_nl + 1; | |
937b367d | 5190 | } |
937b367d NC |
5191 | } |
5192 | } | |
941a98a0 NC |
5193 | if (prune_from) { |
5194 | /* Oh. Too long. Stuff some in our cache. */ | |
5195 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5196 | SV *const cache = datasv; |
941a98a0 | 5197 | |
4464f08e | 5198 | if (SvOK(cache)) { |
941a98a0 NC |
5199 | /* Cache should be empty. */ |
5200 | assert(!SvCUR(cache)); | |
5201 | } | |
5202 | ||
5203 | sv_setpvn(cache, prune_from, cached_len); | |
5204 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5205 | "If it breaks, you get to keep both parts" | |
5206 | (Your code is broken if you don't put them back together again | |
5207 | before something notices.) */ | |
5208 | if (SvUTF8(upstream)) { | |
5209 | SvUTF8_on(cache); | |
5210 | } | |
5211 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5212 | *prune_from = 0; |
941a98a0 NC |
5213 | /* Can't yet be EOF */ |
5214 | if (status == 0) | |
5215 | status = 1; | |
5216 | } | |
937b367d | 5217 | |
34113e50 NC |
5218 | /* If they are at EOF but buf_sv has something in it, then they may never |
5219 | have touched the SV upstream, so it may be undefined. If we naively | |
5220 | concatenate it then we get a warning about use of uninitialised value. | |
5221 | */ | |
5222 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5223 | sv_catsv(buf_sv, upstream); |
5224 | } | |
5225 | ||
941a98a0 | 5226 | if (status <= 0) { |
bbed91b5 | 5227 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5228 | if (filter_state) { |
5229 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5230 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5231 | } |
5232 | if (filter_sub) { | |
5233 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5234 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5235 | } |
0bd48802 | 5236 | filter_del(S_run_user_filter); |
bbed91b5 | 5237 | } |
34113e50 NC |
5238 | if (status == 0 && read_from_cache) { |
5239 | /* If we read some data from the cache (and by getting here it implies | |
5240 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5241 | report that to our caller. */ | |
5242 | return 1; | |
5243 | } | |
941a98a0 | 5244 | return status; |
bbed91b5 | 5245 | } |
84d4ea48 | 5246 | |
be4b629d CN |
5247 | /* perhaps someone can come up with a better name for |
5248 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5249 | static bool |
5f66b61c | 5250 | S_path_is_absolute(const char *name) |
be4b629d | 5251 | { |
7918f24d NC |
5252 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5253 | ||
be4b629d | 5254 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5255 | #ifdef WIN32 |
36f064bc CL |
5256 | || (*name == '.' && ((name[1] == '/' || |
5257 | (name[1] == '.' && name[2] == '/')) | |
5258 | || (name[1] == '\\' || | |
5259 | ( name[1] == '.' && name[2] == '\\'))) | |
5260 | ) | |
5261 | #else | |
be4b629d | 5262 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5263 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5264 | #endif |
0bd48802 | 5265 | ) |
be4b629d CN |
5266 | { |
5267 | return TRUE; | |
5268 | } | |
5269 | else | |
5270 | return FALSE; | |
5271 | } | |
241d1a3b NC |
5272 | |
5273 | /* | |
5274 | * Local variables: | |
5275 | * c-indentation-style: bsd | |
5276 | * c-basic-offset: 4 | |
5277 | * indent-tabs-mode: t | |
5278 | * End: | |
5279 | * | |
37442d52 RGS |
5280 | * ex: set ts=8 sts=4 sw=4 noet: |
5281 | */ |