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 { \ | |
99 | if (SvROK(rx) && SvAMAGIC(rx)) { \ | |
100 | SV *sv = AMG_CALLun(rx, regexp); \ | |
101 | if (sv) { \ | |
102 | if (SvROK(sv)) \ | |
103 | sv = SvRV(sv); \ | |
104 | if (SvTYPE(sv) != SVt_REGEXP) \ | |
105 | Perl_croak(aTHX_ "Overloaded qr did not return a REGEXP"); \ | |
106 | rx = sv; \ | |
107 | } \ | |
108 | } \ | |
109 | } STMT_END | |
110 | ||
111 | ||
131b3ad0 DM |
112 | if (PL_op->op_flags & OPf_STACKED) { |
113 | /* multiple args; concatentate them */ | |
114 | dMARK; dORIGMARK; | |
115 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 116 | sv_setpvs(tmpstr, ""); |
131b3ad0 | 117 | while (++MARK <= SP) { |
d4b87e75 | 118 | SV *msv = *MARK; |
131b3ad0 DM |
119 | if (PL_amagic_generation) { |
120 | SV *sv; | |
d4b87e75 BM |
121 | |
122 | tryAMAGICregexp(msv); | |
123 | ||
124 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) && | |
125 | (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign))) | |
131b3ad0 DM |
126 | { |
127 | sv_setsv(tmpstr, sv); | |
128 | continue; | |
129 | } | |
130 | } | |
d4b87e75 | 131 | sv_catsv(tmpstr, msv); |
131b3ad0 DM |
132 | } |
133 | SvSETMAGIC(tmpstr); | |
134 | SP = ORIGMARK; | |
135 | } | |
d4b87e75 | 136 | else { |
131b3ad0 | 137 | tmpstr = POPs; |
d4b87e75 BM |
138 | tryAMAGICregexp(tmpstr); |
139 | } | |
140 | ||
141 | #undef tryAMAGICregexp | |
513629ba | 142 | |
b3eb6a9b | 143 | if (SvROK(tmpstr)) { |
d8f6592e | 144 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 145 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 146 | re = (REGEXP*) sv; |
c277df42 | 147 | } |
d4b87e75 BM |
148 | else if (SvTYPE(tmpstr) == SVt_REGEXP) |
149 | re = (REGEXP*) tmpstr; | |
150 | ||
5c35adbb | 151 | if (re) { |
69dc4b30 FC |
152 | /* The match's LHS's get-magic might need to access this op's reg- |
153 | exp (as is sometimes the case with $'; see bug 70764). So we | |
154 | must call get-magic now before we replace the regexp. Hopeful- | |
155 | ly this hack can be replaced with the approach described at | |
156 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03 | |
157 | /msg122415.html some day. */ | |
455d9033 FC |
158 | if(pm->op_type == OP_MATCH) { |
159 | SV *lhs; | |
160 | const bool was_tainted = PL_tainted; | |
161 | if (pm->op_flags & OPf_STACKED) | |
69dc4b30 | 162 | lhs = TOPs; |
455d9033 FC |
163 | else if (pm->op_private & OPpTARGET_MY) |
164 | lhs = PAD_SV(pm->op_targ); | |
165 | else lhs = DEFSV; | |
166 | SvGETMAGIC(lhs); | |
167 | /* Restore the previous value of PL_tainted (which may have been | |
168 | modified by get-magic), to avoid incorrectly setting the | |
169 | RXf_TAINTED flag further down. */ | |
170 | PL_tainted = was_tainted; | |
171 | } | |
69dc4b30 | 172 | |
f0826785 | 173 | re = reg_temp_copy(NULL, re); |
aaa362c4 | 174 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 175 | PM_SETRE(pm, re); |
c277df42 IZ |
176 | } |
177 | else { | |
e62f0680 | 178 | STRLEN len; |
3ab4a224 | 179 | const char *t = SvOK(tmpstr) ? SvPV_const(tmpstr, len) : ""; |
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 | } | |
c737faaf | 217 | |
3ab4a224 AB |
218 | if (eng) |
219 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); | |
220 | else | |
221 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); | |
c737faaf | 222 | |
f86aaa29 | 223 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 224 | inside tie/overload accessors. */ |
c277df42 | 225 | } |
4633a7c4 | 226 | } |
c737faaf YO |
227 | |
228 | re = PM_GETRE(pm); | |
a0d0e21e | 229 | |
72311751 | 230 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
231 | if (PL_tainting) { |
232 | if (PL_tainted) | |
07bc277f | 233 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
72311751 | 234 | else |
07bc277f | 235 | RX_EXTFLAGS(re) &= ~RXf_TAINTED; |
72311751 GS |
236 | } |
237 | #endif | |
238 | ||
220fc49f | 239 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 240 | pm = PL_curpm; |
a0d0e21e | 241 | |
c737faaf YO |
242 | |
243 | #if !defined(USE_ITHREADS) | |
244 | /* can't change the optree at runtime either */ | |
245 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 246 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 247 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 248 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 249 | } |
c737faaf | 250 | #endif |
a0d0e21e LW |
251 | RETURN; |
252 | } | |
253 | ||
254 | PP(pp_substcont) | |
255 | { | |
97aff369 | 256 | dVAR; |
39644a26 | 257 | dSP; |
c09156bb | 258 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
259 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
260 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
261 | register char *s = cx->sb_s; |
262 | register char *m = cx->sb_m; | |
263 | char *orig = cx->sb_orig; | |
901017d6 | 264 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 265 | SV *nsv = NULL; |
988e6e7e AE |
266 | REGEXP *old = PM_GETRE(pm); |
267 | if(old != rx) { | |
bfed75c6 | 268 | if(old) |
988e6e7e | 269 | ReREFCNT_dec(old); |
d6106309 | 270 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
271 | } |
272 | ||
d9f97599 | 273 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 274 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 275 | |
a0d0e21e | 276 | if (cx->sb_iters++) { |
a3b680e6 | 277 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 278 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 279 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 280 | |
48c036b1 GS |
281 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
282 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 283 | sv_catsv(dstr, POPs); |
2c296965 YO |
284 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
285 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
286 | |
287 | /* Are we done */ | |
2c296965 YO |
288 | if (CxONCE(cx) || s < orig || |
289 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
290 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
291 | ((cx->sb_rflags & REXEC_COPY_STR) | |
292 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
293 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 294 | { |
823a54a3 | 295 | SV * const targ = cx->sb_targ; |
748a9306 | 296 | |
078c425b JH |
297 | assert(cx->sb_strend >= s); |
298 | if(cx->sb_strend > s) { | |
299 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
300 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
301 | else | |
302 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
303 | } | |
48c036b1 | 304 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 305 | |
f8c7b90f | 306 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
307 | if (SvIsCOW(targ)) { |
308 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
309 | } else | |
310 | #endif | |
311 | { | |
8bd4d4c5 | 312 | SvPV_free(targ); |
ed252734 | 313 | } |
f880fe2f | 314 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
315 | SvCUR_set(targ, SvCUR(dstr)); |
316 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
317 | if (DO_UTF8(dstr)) |
318 | SvUTF8_on(targ); | |
6136c704 | 319 | SvPV_set(dstr, NULL); |
48c036b1 GS |
320 | |
321 | TAINT_IF(cx->sb_rxtainted & 1); | |
6e449a3a | 322 | mPUSHi(saviters - 1); |
48c036b1 | 323 | |
ffc61ed2 | 324 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 325 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 326 | SvSETMAGIC(targ); |
9212bbba | 327 | SvTAINT(targ); |
5cd24f17 | 328 | |
4633a7c4 | 329 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
330 | POPSUBST(cx); |
331 | RETURNOP(pm->op_next); | |
332 | } | |
8e5e9ebe | 333 | cx->sb_iters = saviters; |
a0d0e21e | 334 | } |
07bc277f | 335 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
336 | m = s; |
337 | s = orig; | |
07bc277f | 338 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
339 | s = orig + (m - s); |
340 | cx->sb_strend = s + (cx->sb_strend - m); | |
341 | } | |
07bc277f | 342 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 343 | if (m > s) { |
bfed75c6 | 344 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
345 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
346 | else | |
347 | sv_catpvn(dstr, s, m-s); | |
348 | } | |
07bc277f | 349 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 350 | { /* Update the pos() information. */ |
44f8325f | 351 | SV * const sv = cx->sb_targ; |
084916e3 | 352 | MAGIC *mg; |
7a7f3e45 | 353 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 354 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 355 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 356 | if (SvIsCOW(sv)) |
d83f0a82 NC |
357 | sv_force_normal_flags(sv, 0); |
358 | #endif | |
359 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
360 | NULL, 0); | |
084916e3 | 361 | } |
ce474962 | 362 | mg->mg_len = m - orig; |
084916e3 | 363 | } |
988e6e7e | 364 | if (old != rx) |
d6106309 | 365 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
366 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
367 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 368 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
369 | } |
370 | ||
c90c0ff4 | 371 | void |
864dbfa3 | 372 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 373 | { |
374 | UV *p = (UV*)*rsp; | |
375 | U32 i; | |
7918f24d NC |
376 | |
377 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 378 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 379 | |
07bc277f | 380 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 381 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 382 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 383 | #else |
07bc277f | 384 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 385 | #endif |
c90c0ff4 | 386 | if (!p) |
a02a5408 | 387 | Newx(p, i, UV); |
c90c0ff4 | 388 | else |
389 | Renew(p, i, UV); | |
390 | *rsp = (void*)p; | |
391 | } | |
392 | ||
07bc277f | 393 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 394 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 395 | |
f8c7b90f | 396 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
397 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
398 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
399 | #endif |
400 | ||
07bc277f | 401 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 402 | |
07bc277f NC |
403 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
404 | *p++ = (UV)RX_SUBLEN(rx); | |
405 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
406 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
407 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 408 | } |
409 | } | |
410 | ||
9c105995 NC |
411 | static void |
412 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 413 | { |
414 | UV *p = (UV*)*rsp; | |
415 | U32 i; | |
7918f24d NC |
416 | |
417 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 418 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 419 | |
ed252734 | 420 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 421 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 422 | *p++ = 0; |
423 | ||
f8c7b90f | 424 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
425 | if (RX_SAVED_COPY(rx)) |
426 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
427 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
428 | *p++ = 0; |
429 | #endif | |
430 | ||
07bc277f | 431 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 432 | |
07bc277f NC |
433 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
434 | RX_SUBLEN(rx) = (I32)(*p++); | |
435 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
436 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
437 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 438 | } |
439 | } | |
440 | ||
9c105995 NC |
441 | static void |
442 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 443 | { |
44f8325f | 444 | UV * const p = (UV*)*rsp; |
7918f24d NC |
445 | |
446 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 447 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 448 | |
449 | if (p) { | |
94010e71 NC |
450 | #ifdef PERL_POISON |
451 | void *tmp = INT2PTR(char*,*p); | |
452 | Safefree(tmp); | |
453 | if (*p) | |
7e337ee0 | 454 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 455 | #else |
56431972 | 456 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 457 | #endif |
f8c7b90f | 458 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
459 | if (p[1]) { |
460 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
461 | } | |
462 | #endif | |
c90c0ff4 | 463 | Safefree(p); |
4608196e | 464 | *rsp = NULL; |
c90c0ff4 | 465 | } |
466 | } | |
467 | ||
a0d0e21e LW |
468 | PP(pp_formline) |
469 | { | |
97aff369 | 470 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 471 | register SV * const tmpForm = *++MARK; |
dea28490 | 472 | register U32 *fpc; |
a0d0e21e | 473 | register char *t; |
245d4a47 | 474 | const char *f; |
a0d0e21e | 475 | register I32 arg; |
c445ea15 AL |
476 | register SV *sv = NULL; |
477 | const char *item = NULL; | |
9c5ffd7c JH |
478 | I32 itemsize = 0; |
479 | I32 fieldsize = 0; | |
a0d0e21e | 480 | I32 lines = 0; |
c445ea15 AL |
481 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
482 | const char *chophere = NULL; | |
483 | char *linemark = NULL; | |
65202027 | 484 | NV value; |
9c5ffd7c | 485 | bool gotsome = FALSE; |
a0d0e21e | 486 | STRLEN len; |
823a54a3 | 487 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 488 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
489 | bool item_is_utf8 = FALSE; |
490 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 491 | SV * nsv = NULL; |
cbbf8932 | 492 | OP * parseres = NULL; |
bfed75c6 | 493 | const char *fmt; |
a0d0e21e | 494 | |
76e3520e | 495 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
496 | if (SvREADONLY(tmpForm)) { |
497 | SvREADONLY_off(tmpForm); | |
a1b95068 | 498 | parseres = doparseform(tmpForm); |
445b3f51 GS |
499 | SvREADONLY_on(tmpForm); |
500 | } | |
501 | else | |
a1b95068 WL |
502 | parseres = doparseform(tmpForm); |
503 | if (parseres) | |
504 | return parseres; | |
a0d0e21e | 505 | } |
3280af22 | 506 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
507 | if (DO_UTF8(PL_formtarget)) |
508 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 509 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 510 | t += len; |
245d4a47 | 511 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 512 | /* need to jump to the next word */ |
245d4a47 | 513 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
514 | |
515 | for (;;) { | |
516 | DEBUG_f( { | |
bfed75c6 | 517 | const char *name = "???"; |
a0d0e21e LW |
518 | arg = -1; |
519 | switch (*fpc) { | |
520 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
521 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
522 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
523 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
524 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
525 | ||
526 | case FF_CHECKNL: name = "CHECKNL"; break; | |
527 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
528 | case FF_SPACE: name = "SPACE"; break; | |
529 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
530 | case FF_ITEM: name = "ITEM"; break; | |
531 | case FF_CHOP: name = "CHOP"; break; | |
532 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
533 | case FF_NEWLINE: name = "NEWLINE"; break; | |
534 | case FF_MORE: name = "MORE"; break; | |
535 | case FF_LINEMARK: name = "LINEMARK"; break; | |
536 | case FF_END: name = "END"; break; | |
bfed75c6 | 537 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 538 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
539 | } |
540 | if (arg >= 0) | |
bf49b057 | 541 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 542 | else |
bf49b057 | 543 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 544 | } ); |
a0d0e21e LW |
545 | switch (*fpc++) { |
546 | case FF_LINEMARK: | |
547 | linemark = t; | |
a0d0e21e LW |
548 | lines++; |
549 | gotsome = FALSE; | |
550 | break; | |
551 | ||
552 | case FF_LITERAL: | |
553 | arg = *fpc++; | |
1bd51a4c | 554 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 555 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
556 | *t = '\0'; |
557 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
558 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 559 | f += arg; |
1bd51a4c IH |
560 | break; |
561 | } | |
562 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 563 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 564 | *t = '\0'; |
7bf79863 | 565 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
566 | t = SvEND(PL_formtarget); |
567 | targ_is_utf8 = TRUE; | |
568 | } | |
a0d0e21e LW |
569 | while (arg--) |
570 | *t++ = *f++; | |
571 | break; | |
572 | ||
573 | case FF_SKIP: | |
574 | f += *fpc++; | |
575 | break; | |
576 | ||
577 | case FF_FETCH: | |
578 | arg = *fpc++; | |
579 | f += arg; | |
580 | fieldsize = arg; | |
581 | ||
582 | if (MARK < SP) | |
583 | sv = *++MARK; | |
584 | else { | |
3280af22 | 585 | sv = &PL_sv_no; |
a2a5de95 | 586 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
587 | } |
588 | break; | |
589 | ||
590 | case FF_CHECKNL: | |
5a34cab7 NC |
591 | { |
592 | const char *send; | |
593 | const char *s = item = SvPV_const(sv, len); | |
594 | itemsize = len; | |
595 | if (DO_UTF8(sv)) { | |
596 | itemsize = sv_len_utf8(sv); | |
597 | if (itemsize != (I32)len) { | |
598 | I32 itembytes; | |
599 | if (itemsize > fieldsize) { | |
600 | itemsize = fieldsize; | |
601 | itembytes = itemsize; | |
602 | sv_pos_u2b(sv, &itembytes, 0); | |
603 | } | |
604 | else | |
605 | itembytes = len; | |
606 | send = chophere = s + itembytes; | |
607 | while (s < send) { | |
608 | if (*s & ~31) | |
609 | gotsome = TRUE; | |
610 | else if (*s == '\n') | |
611 | break; | |
612 | s++; | |
613 | } | |
614 | item_is_utf8 = TRUE; | |
615 | itemsize = s - item; | |
616 | sv_pos_b2u(sv, &itemsize); | |
617 | break; | |
a0ed51b3 | 618 | } |
a0ed51b3 | 619 | } |
5a34cab7 NC |
620 | item_is_utf8 = FALSE; |
621 | if (itemsize > fieldsize) | |
622 | itemsize = fieldsize; | |
623 | send = chophere = s + itemsize; | |
624 | while (s < send) { | |
625 | if (*s & ~31) | |
626 | gotsome = TRUE; | |
627 | else if (*s == '\n') | |
628 | break; | |
629 | s++; | |
630 | } | |
631 | itemsize = s - item; | |
632 | break; | |
a0ed51b3 | 633 | } |
a0d0e21e LW |
634 | |
635 | case FF_CHECKCHOP: | |
5a34cab7 NC |
636 | { |
637 | const char *s = item = SvPV_const(sv, len); | |
638 | itemsize = len; | |
639 | if (DO_UTF8(sv)) { | |
640 | itemsize = sv_len_utf8(sv); | |
641 | if (itemsize != (I32)len) { | |
642 | I32 itembytes; | |
643 | if (itemsize <= fieldsize) { | |
644 | const char *send = chophere = s + itemsize; | |
645 | while (s < send) { | |
646 | if (*s == '\r') { | |
647 | itemsize = s - item; | |
a0ed51b3 | 648 | chophere = s; |
a0ed51b3 | 649 | break; |
5a34cab7 NC |
650 | } |
651 | if (*s++ & ~31) | |
a0ed51b3 | 652 | gotsome = TRUE; |
a0ed51b3 | 653 | } |
a0ed51b3 | 654 | } |
5a34cab7 NC |
655 | else { |
656 | const char *send; | |
657 | itemsize = fieldsize; | |
658 | itembytes = itemsize; | |
659 | sv_pos_u2b(sv, &itembytes, 0); | |
660 | send = chophere = s + itembytes; | |
661 | while (s < send || (s == send && isSPACE(*s))) { | |
662 | if (isSPACE(*s)) { | |
663 | if (chopspace) | |
664 | chophere = s; | |
665 | if (*s == '\r') | |
666 | break; | |
667 | } | |
668 | else { | |
669 | if (*s & ~31) | |
670 | gotsome = TRUE; | |
671 | if (strchr(PL_chopset, *s)) | |
672 | chophere = s + 1; | |
673 | } | |
674 | s++; | |
675 | } | |
676 | itemsize = chophere - item; | |
677 | sv_pos_b2u(sv, &itemsize); | |
678 | } | |
679 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
680 | break; |
681 | } | |
a0d0e21e | 682 | } |
5a34cab7 NC |
683 | item_is_utf8 = FALSE; |
684 | if (itemsize <= fieldsize) { | |
685 | const char *const send = chophere = s + itemsize; | |
686 | while (s < send) { | |
687 | if (*s == '\r') { | |
688 | itemsize = s - item; | |
a0d0e21e | 689 | chophere = s; |
a0d0e21e | 690 | break; |
5a34cab7 NC |
691 | } |
692 | if (*s++ & ~31) | |
a0d0e21e | 693 | gotsome = TRUE; |
a0d0e21e | 694 | } |
a0d0e21e | 695 | } |
5a34cab7 NC |
696 | else { |
697 | const char *send; | |
698 | itemsize = fieldsize; | |
699 | send = chophere = s + itemsize; | |
700 | while (s < send || (s == send && isSPACE(*s))) { | |
701 | if (isSPACE(*s)) { | |
702 | if (chopspace) | |
703 | chophere = s; | |
704 | if (*s == '\r') | |
705 | break; | |
706 | } | |
707 | else { | |
708 | if (*s & ~31) | |
709 | gotsome = TRUE; | |
710 | if (strchr(PL_chopset, *s)) | |
711 | chophere = s + 1; | |
712 | } | |
713 | s++; | |
714 | } | |
715 | itemsize = chophere - item; | |
716 | } | |
717 | break; | |
a0d0e21e | 718 | } |
a0d0e21e LW |
719 | |
720 | case FF_SPACE: | |
721 | arg = fieldsize - itemsize; | |
722 | if (arg) { | |
723 | fieldsize -= arg; | |
724 | while (arg-- > 0) | |
725 | *t++ = ' '; | |
726 | } | |
727 | break; | |
728 | ||
729 | case FF_HALFSPACE: | |
730 | arg = fieldsize - itemsize; | |
731 | if (arg) { | |
732 | arg /= 2; | |
733 | fieldsize -= arg; | |
734 | while (arg-- > 0) | |
735 | *t++ = ' '; | |
736 | } | |
737 | break; | |
738 | ||
739 | case FF_ITEM: | |
5a34cab7 NC |
740 | { |
741 | const char *s = item; | |
742 | arg = itemsize; | |
743 | if (item_is_utf8) { | |
744 | if (!targ_is_utf8) { | |
745 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
746 | *t = '\0'; | |
7bf79863 KW |
747 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
748 | fudge + 1); | |
5a34cab7 NC |
749 | t = SvEND(PL_formtarget); |
750 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 751 | } |
5a34cab7 NC |
752 | while (arg--) { |
753 | if (UTF8_IS_CONTINUED(*s)) { | |
754 | STRLEN skip = UTF8SKIP(s); | |
755 | switch (skip) { | |
756 | default: | |
757 | Move(s,t,skip,char); | |
758 | s += skip; | |
759 | t += skip; | |
760 | break; | |
761 | case 7: *t++ = *s++; | |
762 | case 6: *t++ = *s++; | |
763 | case 5: *t++ = *s++; | |
764 | case 4: *t++ = *s++; | |
765 | case 3: *t++ = *s++; | |
766 | case 2: *t++ = *s++; | |
767 | case 1: *t++ = *s++; | |
768 | } | |
769 | } | |
770 | else { | |
771 | if ( !((*t++ = *s++) & ~31) ) | |
772 | t[-1] = ' '; | |
773 | } | |
a0ed51b3 | 774 | } |
5a34cab7 | 775 | break; |
a0ed51b3 | 776 | } |
5a34cab7 NC |
777 | if (targ_is_utf8 && !item_is_utf8) { |
778 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
779 | *t = '\0'; | |
780 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
781 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 782 | #ifdef EBCDIC |
901017d6 | 783 | const int ch = *t; |
5a34cab7 | 784 | if (iscntrl(ch)) |
78da4d13 | 785 | #else |
5a34cab7 | 786 | if (!(*t & ~31)) |
78da4d13 | 787 | #endif |
5a34cab7 NC |
788 | *t = ' '; |
789 | } | |
790 | break; | |
78da4d13 | 791 | } |
5a34cab7 | 792 | while (arg--) { |
9d116dd7 | 793 | #ifdef EBCDIC |
901017d6 | 794 | const int ch = *t++ = *s++; |
5a34cab7 | 795 | if (iscntrl(ch)) |
a0d0e21e | 796 | #else |
5a34cab7 | 797 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 798 | #endif |
5a34cab7 NC |
799 | t[-1] = ' '; |
800 | } | |
801 | break; | |
a0d0e21e | 802 | } |
a0d0e21e LW |
803 | |
804 | case FF_CHOP: | |
5a34cab7 NC |
805 | { |
806 | const char *s = chophere; | |
807 | if (chopspace) { | |
af68e756 | 808 | while (isSPACE(*s)) |
5a34cab7 NC |
809 | s++; |
810 | } | |
811 | sv_chop(sv,s); | |
812 | SvSETMAGIC(sv); | |
813 | break; | |
a0d0e21e | 814 | } |
a0d0e21e | 815 | |
a1b95068 WL |
816 | case FF_LINESNGL: |
817 | chopspace = 0; | |
a0d0e21e | 818 | case FF_LINEGLOB: |
5a34cab7 | 819 | { |
e32383e2 | 820 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 821 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 822 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 823 | itemsize = len; |
5a34cab7 | 824 | if (itemsize) { |
e8e72d41 | 825 | STRLEN to_copy = itemsize; |
5a34cab7 | 826 | const char *const send = s + len; |
35c6393c | 827 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
828 | U8 *tmp = NULL; |
829 | ||
5a34cab7 NC |
830 | gotsome = TRUE; |
831 | chophere = s + itemsize; | |
832 | while (s < send) { | |
833 | if (*s++ == '\n') { | |
834 | if (oneline) { | |
e8e72d41 | 835 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
836 | chophere = s; |
837 | break; | |
838 | } else { | |
839 | if (s == send) { | |
840 | itemsize--; | |
e8e72d41 | 841 | to_copy--; |
5a34cab7 NC |
842 | } else |
843 | lines++; | |
844 | } | |
1bd51a4c | 845 | } |
a0d0e21e | 846 | } |
e8e72d41 | 847 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 848 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
849 | SvCUR_set(PL_formtarget, |
850 | t - SvPVX_const(PL_formtarget)); | |
851 | } else { | |
852 | if (item_is_utf8 && !targ_is_utf8) { | |
853 | /* Upgrade targ to UTF8, and then we reduce it to | |
854 | a problem we have a simple solution for. */ | |
855 | SvCUR_set(PL_formtarget, | |
856 | t - SvPVX_const(PL_formtarget)); | |
857 | targ_is_utf8 = TRUE; | |
858 | /* Don't need get magic. */ | |
7bf79863 | 859 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
860 | } else { |
861 | SvCUR_set(PL_formtarget, | |
862 | t - SvPVX_const(PL_formtarget)); | |
863 | } | |
e8e72d41 NC |
864 | |
865 | /* Easy. They agree. */ | |
866 | assert (item_is_utf8 == targ_is_utf8); | |
867 | } | |
868 | SvGROW(PL_formtarget, | |
869 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 870 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
871 | |
872 | Copy(source, t, to_copy, char); | |
873 | t += to_copy; | |
874 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 875 | if (item_is_utf8) { |
e8e72d41 NC |
876 | if (SvGMAGICAL(sv)) { |
877 | /* Mustn't call sv_pos_b2u() as it does a second | |
878 | mg_get(). Is this a bug? Do we need a _flags() | |
879 | variant? */ | |
880 | itemsize = utf8_length(source, source + itemsize); | |
881 | } else { | |
882 | sv_pos_b2u(sv, &itemsize); | |
883 | } | |
884 | assert(!tmp); | |
885 | } else if (tmp) { | |
886 | Safefree(tmp); | |
f3f2f1a3 | 887 | } |
a0d0e21e | 888 | } |
5a34cab7 | 889 | break; |
a0d0e21e | 890 | } |
a0d0e21e | 891 | |
a1b95068 WL |
892 | case FF_0DECIMAL: |
893 | arg = *fpc++; | |
894 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
895 | fmt = (const char *) |
896 | ((arg & 256) ? | |
897 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 898 | #else |
10edeb5d JH |
899 | fmt = (const char *) |
900 | ((arg & 256) ? | |
901 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
902 | #endif |
903 | goto ff_dec; | |
a0d0e21e | 904 | case FF_DECIMAL: |
a0d0e21e | 905 | arg = *fpc++; |
65202027 | 906 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
907 | fmt = (const char *) |
908 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 909 | #else |
10edeb5d JH |
910 | fmt = (const char *) |
911 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 912 | #endif |
a1b95068 | 913 | ff_dec: |
784707d5 JP |
914 | /* If the field is marked with ^ and the value is undefined, |
915 | blank it out. */ | |
784707d5 JP |
916 | if ((arg & 512) && !SvOK(sv)) { |
917 | arg = fieldsize; | |
918 | while (arg--) | |
919 | *t++ = ' '; | |
920 | break; | |
921 | } | |
922 | gotsome = TRUE; | |
923 | value = SvNV(sv); | |
a1b95068 | 924 | /* overflow evidence */ |
bfed75c6 | 925 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
926 | arg = fieldsize; |
927 | while (arg--) | |
928 | *t++ = '#'; | |
929 | break; | |
930 | } | |
784707d5 JP |
931 | /* Formats aren't yet marked for locales, so assume "yes". */ |
932 | { | |
933 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 934 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
935 | RESTORE_NUMERIC_STANDARD(); |
936 | } | |
937 | t += fieldsize; | |
938 | break; | |
a1b95068 | 939 | |
a0d0e21e LW |
940 | case FF_NEWLINE: |
941 | f++; | |
942 | while (t-- > linemark && *t == ' ') ; | |
943 | t++; | |
944 | *t++ = '\n'; | |
945 | break; | |
946 | ||
947 | case FF_BLANK: | |
948 | arg = *fpc++; | |
949 | if (gotsome) { | |
950 | if (arg) { /* repeat until fields exhausted? */ | |
951 | *t = '\0'; | |
b15aece3 | 952 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 953 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
954 | if (targ_is_utf8) |
955 | SvUTF8_on(PL_formtarget); | |
3280af22 | 956 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
957 | SP = ORIGMARK; |
958 | RETURNOP(cLISTOP->op_first); | |
959 | } | |
960 | } | |
961 | else { | |
962 | t = linemark; | |
963 | lines--; | |
964 | } | |
965 | break; | |
966 | ||
967 | case FF_MORE: | |
5a34cab7 NC |
968 | { |
969 | const char *s = chophere; | |
970 | const char *send = item + len; | |
971 | if (chopspace) { | |
af68e756 | 972 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 973 | s++; |
a0d0e21e | 974 | } |
5a34cab7 NC |
975 | if (s < send) { |
976 | char *s1; | |
977 | arg = fieldsize - itemsize; | |
978 | if (arg) { | |
979 | fieldsize -= arg; | |
980 | while (arg-- > 0) | |
981 | *t++ = ' '; | |
982 | } | |
983 | s1 = t - 3; | |
984 | if (strnEQ(s1," ",3)) { | |
985 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
986 | s1--; | |
987 | } | |
988 | *s1++ = '.'; | |
989 | *s1++ = '.'; | |
990 | *s1++ = '.'; | |
a0d0e21e | 991 | } |
5a34cab7 | 992 | break; |
a0d0e21e | 993 | } |
a0d0e21e LW |
994 | case FF_END: |
995 | *t = '\0'; | |
b15aece3 | 996 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
997 | if (targ_is_utf8) |
998 | SvUTF8_on(PL_formtarget); | |
3280af22 | 999 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1000 | SP = ORIGMARK; |
1001 | RETPUSHYES; | |
1002 | } | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | PP(pp_grepstart) | |
1007 | { | |
27da23d5 | 1008 | dVAR; dSP; |
a0d0e21e LW |
1009 | SV *src; |
1010 | ||
3280af22 | 1011 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1012 | (void)POPMARK; |
54310121 | 1013 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1014 | mXPUSHi(0); |
533c011a | 1015 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1016 | } |
3280af22 | 1017 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
1018 | pp_pushmark(); /* push dst */ |
1019 | pp_pushmark(); /* push src */ | |
d343c3ef | 1020 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1021 | |
1022 | SAVETMPS; | |
59f00321 RGS |
1023 | if (PL_op->op_private & OPpGREP_LEX) |
1024 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1025 | else | |
1026 | SAVE_DEFSV; | |
d343c3ef | 1027 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1028 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1029 | |
3280af22 | 1030 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1031 | SvTEMP_off(src); |
59f00321 RGS |
1032 | if (PL_op->op_private & OPpGREP_LEX) |
1033 | PAD_SVl(PL_op->op_targ) = src; | |
1034 | else | |
414bf5ae | 1035 | DEFSV_set(src); |
a0d0e21e LW |
1036 | |
1037 | PUTBACK; | |
533c011a | 1038 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 1039 | pp_pushmark(); /* push top */ |
533c011a | 1040 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1041 | } |
1042 | ||
a0d0e21e LW |
1043 | PP(pp_mapwhile) |
1044 | { | |
27da23d5 | 1045 | dVAR; dSP; |
f54cb97a | 1046 | const I32 gimme = GIMME_V; |
544f3153 | 1047 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1048 | I32 count; |
1049 | I32 shift; | |
1050 | SV** src; | |
ac27b0f5 | 1051 | SV** dst; |
a0d0e21e | 1052 | |
544f3153 | 1053 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1054 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1055 | |
1056 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1057 | if (items && gimme != G_VOID) { |
544f3153 GS |
1058 | /* might need to make room back there first */ |
1059 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1060 | /* XXX this implementation is very pessimal because the stack | |
1061 | * is repeatedly extended for every set of items. Is possible | |
1062 | * to do this without any stack extension or copying at all | |
1063 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1064 | * (like foreach does). --gsar */ |
544f3153 GS |
1065 | |
1066 | /* everything in the stack after the destination list moves | |
1067 | * towards the end the stack by the amount of room needed */ | |
1068 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1069 | ||
1070 | /* items to shift up (accounting for the moved source pointer) */ | |
1071 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1072 | |
1073 | /* This optimization is by Ben Tilly and it does | |
1074 | * things differently from what Sarathy (gsar) | |
1075 | * is describing. The downside of this optimization is | |
1076 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1077 | * to the Perl stack, but on the other hand this | |
1078 | * shouldn't be a problem. If Sarathy's idea gets | |
1079 | * implemented, this optimization should become | |
1080 | * irrelevant. --jhi */ | |
1081 | if (shift < count) | |
1082 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1083 | |
924508f0 GS |
1084 | EXTEND(SP,shift); |
1085 | src = SP; | |
1086 | dst = (SP += shift); | |
3280af22 NIS |
1087 | PL_markstack_ptr[-1] += shift; |
1088 | *PL_markstack_ptr += shift; | |
544f3153 | 1089 | while (count--) |
a0d0e21e LW |
1090 | *dst-- = *src--; |
1091 | } | |
544f3153 | 1092 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1093 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1094 | if (gimme == G_ARRAY) { |
1095 | while (items-- > 0) | |
1096 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1097 | } | |
bfed75c6 | 1098 | else { |
22023b26 TP |
1099 | /* scalar context: we don't care about which values map returns |
1100 | * (we use undef here). And so we certainly don't want to do mortal | |
1101 | * copies of meaningless values. */ | |
1102 | while (items-- > 0) { | |
b988aa42 | 1103 | (void)POPs; |
22023b26 TP |
1104 | *dst-- = &PL_sv_undef; |
1105 | } | |
1106 | } | |
a0d0e21e | 1107 | } |
d343c3ef | 1108 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1109 | |
1110 | /* All done yet? */ | |
3280af22 | 1111 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1112 | |
1113 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1114 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1115 | (void)POPMARK; /* pop src */ |
3280af22 | 1116 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1117 | (void)POPMARK; /* pop dst */ |
3280af22 | 1118 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1119 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1120 | if (PL_op->op_private & OPpGREP_LEX) { |
1121 | SV* sv = sv_newmortal(); | |
1122 | sv_setiv(sv, items); | |
1123 | PUSHs(sv); | |
1124 | } | |
1125 | else { | |
1126 | dTARGET; | |
1127 | XPUSHi(items); | |
1128 | } | |
a0d0e21e | 1129 | } |
54310121 | 1130 | else if (gimme == G_ARRAY) |
1131 | SP += items; | |
a0d0e21e LW |
1132 | RETURN; |
1133 | } | |
1134 | else { | |
1135 | SV *src; | |
1136 | ||
d343c3ef | 1137 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1138 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1139 | |
544f3153 | 1140 | /* set $_ to the new source item */ |
3280af22 | 1141 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1142 | SvTEMP_off(src); |
59f00321 RGS |
1143 | if (PL_op->op_private & OPpGREP_LEX) |
1144 | PAD_SVl(PL_op->op_targ) = src; | |
1145 | else | |
414bf5ae | 1146 | DEFSV_set(src); |
a0d0e21e LW |
1147 | |
1148 | RETURNOP(cLOGOP->op_other); | |
1149 | } | |
1150 | } | |
1151 | ||
a0d0e21e LW |
1152 | /* Range stuff. */ |
1153 | ||
1154 | PP(pp_range) | |
1155 | { | |
97aff369 | 1156 | dVAR; |
a0d0e21e | 1157 | if (GIMME == G_ARRAY) |
1a67a97c | 1158 | return NORMAL; |
538573f7 | 1159 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1160 | return cLOGOP->op_other; |
538573f7 | 1161 | else |
1a67a97c | 1162 | return NORMAL; |
a0d0e21e LW |
1163 | } |
1164 | ||
1165 | PP(pp_flip) | |
1166 | { | |
97aff369 | 1167 | dVAR; |
39644a26 | 1168 | dSP; |
a0d0e21e LW |
1169 | |
1170 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1171 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1172 | } |
1173 | else { | |
1174 | dTOPss; | |
44f8325f | 1175 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1176 | int flip = 0; |
790090df | 1177 | |
bfed75c6 | 1178 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1179 | if (GvIO(PL_last_in_gv)) { |
1180 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1181 | } | |
1182 | else { | |
fafc274c | 1183 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1184 | if (gv && GvSV(gv)) |
1185 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1186 | } |
bfed75c6 AL |
1187 | } else { |
1188 | flip = SvTRUE(sv); | |
1189 | } | |
1190 | if (flip) { | |
a0d0e21e | 1191 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1192 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1193 | sv_setiv(targ, 1); |
3e3baf6d | 1194 | SETs(targ); |
a0d0e21e LW |
1195 | RETURN; |
1196 | } | |
1197 | else { | |
1198 | sv_setiv(targ, 0); | |
924508f0 | 1199 | SP--; |
1a67a97c | 1200 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1201 | } |
1202 | } | |
76f68e9b | 1203 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1204 | SETs(targ); |
1205 | RETURN; | |
1206 | } | |
1207 | } | |
1208 | ||
8e9bbdb9 RGS |
1209 | /* This code tries to decide if "$left .. $right" should use the |
1210 | magical string increment, or if the range is numeric (we make | |
1211 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1212 | ||
1213 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1214 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1215 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1216 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1217 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1218 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1219 | |
a0d0e21e LW |
1220 | PP(pp_flop) |
1221 | { | |
97aff369 | 1222 | dVAR; dSP; |
a0d0e21e LW |
1223 | |
1224 | if (GIMME == G_ARRAY) { | |
1225 | dPOPPOPssrl; | |
86cb7173 | 1226 | |
5b295bef RD |
1227 | SvGETMAGIC(left); |
1228 | SvGETMAGIC(right); | |
a0d0e21e | 1229 | |
8e9bbdb9 | 1230 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1231 | register IV i, j; |
1232 | IV max; | |
4fe3f0fa MHM |
1233 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1234 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1235 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1236 | i = SvIV(left); |
1237 | max = SvIV(right); | |
bbce6d69 | 1238 | if (max >= i) { |
c1ab3db2 AK |
1239 | j = max - i + 1; |
1240 | EXTEND_MORTAL(j); | |
1241 | EXTEND(SP, j); | |
bbce6d69 | 1242 | } |
c1ab3db2 AK |
1243 | else |
1244 | j = 0; | |
1245 | while (j--) { | |
901017d6 | 1246 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1247 | PUSHs(sv); |
1248 | } | |
1249 | } | |
1250 | else { | |
44f8325f | 1251 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1252 | STRLEN len; |
823a54a3 | 1253 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1254 | |
901017d6 | 1255 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1256 | SvPV_force_nolen(sv); |
89ea2908 | 1257 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1258 | XPUSHs(sv); |
b15aece3 | 1259 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1260 | break; |
a0d0e21e LW |
1261 | sv = sv_2mortal(newSVsv(sv)); |
1262 | sv_inc(sv); | |
1263 | } | |
a0d0e21e LW |
1264 | } |
1265 | } | |
1266 | else { | |
1267 | dTOPss; | |
901017d6 | 1268 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1269 | int flop = 0; |
a0d0e21e | 1270 | sv_inc(targ); |
4e3399f9 YST |
1271 | |
1272 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1273 | if (GvIO(PL_last_in_gv)) { | |
1274 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1275 | } | |
1276 | else { | |
fafc274c | 1277 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1278 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1279 | } | |
1280 | } | |
1281 | else { | |
1282 | flop = SvTRUE(sv); | |
1283 | } | |
1284 | ||
1285 | if (flop) { | |
a0d0e21e | 1286 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1287 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1288 | } |
1289 | SETs(targ); | |
1290 | } | |
1291 | ||
1292 | RETURN; | |
1293 | } | |
1294 | ||
1295 | /* Control. */ | |
1296 | ||
27da23d5 | 1297 | static const char * const context_name[] = { |
515afda2 | 1298 | "pseudo-block", |
f31522f3 | 1299 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1300 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1301 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1302 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1303 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1304 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1305 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1306 | "subroutine", |
76753e7f | 1307 | "format", |
515afda2 | 1308 | "eval", |
515afda2 | 1309 | "substitution", |
515afda2 NC |
1310 | }; |
1311 | ||
76e3520e | 1312 | STATIC I32 |
06b5626a | 1313 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1314 | { |
97aff369 | 1315 | dVAR; |
a0d0e21e | 1316 | register I32 i; |
a0d0e21e | 1317 | |
7918f24d NC |
1318 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1319 | ||
a0d0e21e | 1320 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1321 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1322 | switch (CxTYPE(cx)) { |
a0d0e21e | 1323 | case CXt_SUBST: |
a0d0e21e | 1324 | case CXt_SUB: |
7766f137 | 1325 | case CXt_FORMAT: |
a0d0e21e | 1326 | case CXt_EVAL: |
0a753a76 | 1327 | case CXt_NULL: |
a2a5de95 NC |
1328 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1329 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1330 | if (CxTYPE(cx) == CXt_NULL) |
1331 | return -1; | |
1332 | break; | |
c6fdafd0 | 1333 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1334 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1335 | case CXt_LOOP_FOR: |
1336 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1337 | { |
1338 | const char *cx_label = CxLABEL(cx); | |
1339 | if (!cx_label || strNE(label, cx_label) ) { | |
cea2e8a9 | 1340 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
7e8f1eac | 1341 | (long)i, cx_label)); |
a0d0e21e LW |
1342 | continue; |
1343 | } | |
cea2e8a9 | 1344 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e | 1345 | return i; |
7e8f1eac | 1346 | } |
a0d0e21e LW |
1347 | } |
1348 | } | |
1349 | return i; | |
1350 | } | |
1351 | ||
0d863452 RH |
1352 | |
1353 | ||
e50aee73 | 1354 | I32 |
864dbfa3 | 1355 | Perl_dowantarray(pTHX) |
e50aee73 | 1356 | { |
97aff369 | 1357 | dVAR; |
f54cb97a | 1358 | const I32 gimme = block_gimme(); |
54310121 | 1359 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1360 | } | |
1361 | ||
1362 | I32 | |
864dbfa3 | 1363 | Perl_block_gimme(pTHX) |
54310121 | 1364 | { |
97aff369 | 1365 | dVAR; |
06b5626a | 1366 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1367 | if (cxix < 0) |
46fc3d4c | 1368 | return G_VOID; |
e50aee73 | 1369 | |
54310121 | 1370 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1371 | case G_VOID: |
1372 | return G_VOID; | |
54310121 | 1373 | case G_SCALAR: |
e50aee73 | 1374 | return G_SCALAR; |
54310121 | 1375 | case G_ARRAY: |
1376 | return G_ARRAY; | |
1377 | default: | |
cea2e8a9 | 1378 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1379 | /* NOTREACHED */ |
1380 | return 0; | |
54310121 | 1381 | } |
e50aee73 AD |
1382 | } |
1383 | ||
78f9721b SM |
1384 | I32 |
1385 | Perl_is_lvalue_sub(pTHX) | |
1386 | { | |
97aff369 | 1387 | dVAR; |
06b5626a | 1388 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1389 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1390 | ||
bafb2adc NC |
1391 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1392 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1393 | else |
1394 | return 0; | |
1395 | } | |
1396 | ||
76e3520e | 1397 | STATIC I32 |
901017d6 | 1398 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1399 | { |
97aff369 | 1400 | dVAR; |
a0d0e21e | 1401 | I32 i; |
7918f24d NC |
1402 | |
1403 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1404 | ||
a0d0e21e | 1405 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1406 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1407 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1408 | default: |
1409 | continue; | |
1410 | case CXt_EVAL: | |
1411 | case CXt_SUB: | |
7766f137 | 1412 | case CXt_FORMAT: |
cea2e8a9 | 1413 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1414 | return i; |
1415 | } | |
1416 | } | |
1417 | return i; | |
1418 | } | |
1419 | ||
76e3520e | 1420 | STATIC I32 |
cea2e8a9 | 1421 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1422 | { |
97aff369 | 1423 | dVAR; |
a0d0e21e | 1424 | I32 i; |
a0d0e21e | 1425 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1426 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1427 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1428 | default: |
1429 | continue; | |
1430 | case CXt_EVAL: | |
cea2e8a9 | 1431 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1432 | return i; |
1433 | } | |
1434 | } | |
1435 | return i; | |
1436 | } | |
1437 | ||
76e3520e | 1438 | STATIC I32 |
cea2e8a9 | 1439 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1440 | { |
97aff369 | 1441 | dVAR; |
a0d0e21e | 1442 | I32 i; |
a0d0e21e | 1443 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1444 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1445 | switch (CxTYPE(cx)) { |
a0d0e21e | 1446 | case CXt_SUBST: |
a0d0e21e | 1447 | case CXt_SUB: |
7766f137 | 1448 | case CXt_FORMAT: |
a0d0e21e | 1449 | case CXt_EVAL: |
0a753a76 | 1450 | case CXt_NULL: |
a2a5de95 NC |
1451 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1452 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1453 | if ((CxTYPE(cx)) == CXt_NULL) |
1454 | return -1; | |
1455 | break; | |
c6fdafd0 | 1456 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1457 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1458 | case CXt_LOOP_FOR: |
1459 | case CXt_LOOP_PLAIN: | |
cea2e8a9 | 1460 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1461 | return i; |
1462 | } | |
1463 | } | |
1464 | return i; | |
1465 | } | |
1466 | ||
0d863452 RH |
1467 | STATIC I32 |
1468 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1469 | { | |
97aff369 | 1470 | dVAR; |
0d863452 RH |
1471 | I32 i; |
1472 | for (i = startingblock; i >= 0; i--) { | |
1473 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1474 | switch (CxTYPE(cx)) { | |
1475 | default: | |
1476 | continue; | |
1477 | case CXt_GIVEN: | |
1478 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1479 | return i; | |
3b719c58 NC |
1480 | case CXt_LOOP_PLAIN: |
1481 | assert(!CxFOREACHDEF(cx)); | |
1482 | break; | |
c6fdafd0 | 1483 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1484 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1485 | case CXt_LOOP_FOR: |
0d863452 RH |
1486 | if (CxFOREACHDEF(cx)) { |
1487 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1488 | return i; | |
1489 | } | |
1490 | } | |
1491 | } | |
1492 | return i; | |
1493 | } | |
1494 | ||
1495 | STATIC I32 | |
1496 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1497 | { | |
97aff369 | 1498 | dVAR; |
0d863452 RH |
1499 | I32 i; |
1500 | for (i = startingblock; i >= 0; i--) { | |
1501 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1502 | switch (CxTYPE(cx)) { | |
1503 | default: | |
1504 | continue; | |
1505 | case CXt_WHEN: | |
1506 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1507 | return i; | |
1508 | } | |
1509 | } | |
1510 | return i; | |
1511 | } | |
1512 | ||
a0d0e21e | 1513 | void |
864dbfa3 | 1514 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1515 | { |
97aff369 | 1516 | dVAR; |
a0d0e21e LW |
1517 | I32 optype; |
1518 | ||
1519 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1520 | SV *sv; |
06b5626a | 1521 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1522 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1523 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1524 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1525 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1526 | case CXt_SUBST: |
1527 | POPSUBST(cx); | |
1528 | continue; /* not break */ | |
a0d0e21e | 1529 | case CXt_SUB: |
b0d9ce38 GS |
1530 | POPSUB(cx,sv); |
1531 | LEAVESUB(sv); | |
a0d0e21e LW |
1532 | break; |
1533 | case CXt_EVAL: | |
1534 | POPEVAL(cx); | |
1535 | break; | |
c6fdafd0 | 1536 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1537 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1538 | case CXt_LOOP_FOR: |
1539 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1540 | POPLOOP(cx); |
1541 | break; | |
0a753a76 | 1542 | case CXt_NULL: |
a0d0e21e | 1543 | break; |
7766f137 GS |
1544 | case CXt_FORMAT: |
1545 | POPFORMAT(cx); | |
1546 | break; | |
a0d0e21e | 1547 | } |
c90c0ff4 | 1548 | cxstack_ix--; |
a0d0e21e | 1549 | } |
1b6737cc | 1550 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1551 | } |
1552 | ||
5a844595 GS |
1553 | void |
1554 | Perl_qerror(pTHX_ SV *err) | |
1555 | { | |
97aff369 | 1556 | dVAR; |
7918f24d NC |
1557 | |
1558 | PERL_ARGS_ASSERT_QERROR; | |
1559 | ||
5a844595 GS |
1560 | if (PL_in_eval) |
1561 | sv_catsv(ERRSV, err); | |
1562 | else if (PL_errors) | |
1563 | sv_catsv(PL_errors, err); | |
1564 | else | |
be2597df | 1565 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1566 | if (PL_parser) |
1567 | ++PL_parser->error_count; | |
5a844595 GS |
1568 | } |
1569 | ||
bb4c52e0 | 1570 | void |
7d0994e0 | 1571 | Perl_die_where(pTHX_ SV *msv) |
a0d0e21e | 1572 | { |
27da23d5 | 1573 | dVAR; |
87582a92 | 1574 | |
3280af22 | 1575 | if (PL_in_eval) { |
a0d0e21e | 1576 | I32 cxix; |
a0d0e21e | 1577 | I32 gimme; |
a0d0e21e | 1578 | |
7d0994e0 | 1579 | if (msv) { |
faef0170 | 1580 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1581 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1582 | SV * const err = ERRSV; |
c445ea15 | 1583 | const char *e = NULL; |
98eae8f5 | 1584 | if (!SvPOK(err)) |
76f68e9b | 1585 | sv_setpvs(err,""); |
7d0994e0 | 1586 | else if (SvCUR(err) >= sizeof(prefix)+SvCUR(msv)-1) { |
0510663f | 1587 | STRLEN len; |
7d0994e0 GG |
1588 | STRLEN msglen; |
1589 | const char* message = SvPV_const(msv, msglen); | |
349d4f2f | 1590 | e = SvPV_const(err, len); |
0510663f | 1591 | e += len - msglen; |
98eae8f5 | 1592 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1593 | e = NULL; |
98eae8f5 GS |
1594 | } |
1595 | if (!e) { | |
a2a5de95 | 1596 | STRLEN start; |
7d0994e0 | 1597 | SvGROW(err, SvCUR(err)+sizeof(prefix)+SvCUR(msv)); |
98eae8f5 | 1598 | sv_catpvn(err, prefix, sizeof(prefix)-1); |
7d0994e0 GG |
1599 | sv_catsv(err, msv); |
1600 | start = SvCUR(err)-SvCUR(msv)-sizeof(prefix)+1; | |
a2a5de95 NC |
1601 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "%s", |
1602 | SvPVX_const(err)+start); | |
4633a7c4 | 1603 | } |
4633a7c4 | 1604 | } |
1aa99e6b | 1605 | else { |
7d0994e0 GG |
1606 | STRLEN msglen; |
1607 | const char* message = SvPV_const(msv, msglen); | |
06bf62c7 | 1608 | sv_setpvn(ERRSV, message, msglen); |
7d0994e0 | 1609 | SvFLAGS(ERRSV) |= SvFLAGS(msv) & SVf_UTF8; |
1aa99e6b | 1610 | } |
4633a7c4 | 1611 | } |
4e6ea2c3 | 1612 | |
5a844595 GS |
1613 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1614 | && PL_curstackinfo->si_prev) | |
1615 | { | |
bac4b2ad | 1616 | dounwind(-1); |
d3acc0f7 | 1617 | POPSTACK; |
bac4b2ad | 1618 | } |
e336de0d | 1619 | |
a0d0e21e LW |
1620 | if (cxix >= 0) { |
1621 | I32 optype; | |
35a4481c | 1622 | register PERL_CONTEXT *cx; |
901017d6 | 1623 | SV **newsp; |
a0d0e21e LW |
1624 | |
1625 | if (cxix < cxstack_ix) | |
1626 | dounwind(cxix); | |
1627 | ||
3280af22 | 1628 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1629 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 GG |
1630 | STRLEN msglen; |
1631 | const char* message = SvPVx_const( msv ? msv : ERRSV, msglen); | |
10edeb5d | 1632 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1633 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1634 | my_exit(1); |
1635 | } | |
1636 | POPEVAL(cx); | |
1637 | ||
1638 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1639 | *++newsp = &PL_sv_undef; |
1640 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1641 | |
1642 | LEAVE; | |
748a9306 | 1643 | |
7fb6a879 GS |
1644 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1645 | * XXX it might be better to find a way to avoid messing with | |
1646 | * PL_curcop in save_re_context() instead, but this is a more | |
1647 | * minimal fix --GSAR */ | |
1648 | PL_curcop = cx->blk_oldcop; | |
1649 | ||
7a2e2cd6 | 1650 | if (optype == OP_REQUIRE) { |
44f8325f | 1651 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1652 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1653 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1654 | &PL_sv_undef, 0); |
5a844595 GS |
1655 | DIE(aTHX_ "%sCompilation failed in require", |
1656 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1657 | } |
f39bc417 | 1658 | assert(CxTYPE(cx) == CXt_EVAL); |
bb4c52e0 GG |
1659 | PL_restartop = cx->blk_eval.retop; |
1660 | JMPENV_JUMP(3); | |
1661 | /* NOTREACHED */ | |
a0d0e21e LW |
1662 | } |
1663 | } | |
87582a92 | 1664 | |
7d0994e0 | 1665 | write_to_stderr( msv ? msv : ERRSV ); |
f86702cc | 1666 | my_failure_exit(); |
1667 | /* NOTREACHED */ | |
a0d0e21e LW |
1668 | } |
1669 | ||
1670 | PP(pp_xor) | |
1671 | { | |
97aff369 | 1672 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1673 | if (SvTRUE(left) != SvTRUE(right)) |
1674 | RETSETYES; | |
1675 | else | |
1676 | RETSETNO; | |
1677 | } | |
1678 | ||
a0d0e21e LW |
1679 | PP(pp_caller) |
1680 | { | |
97aff369 | 1681 | dVAR; |
39644a26 | 1682 | dSP; |
a0d0e21e | 1683 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1684 | register const PERL_CONTEXT *cx; |
1685 | register const PERL_CONTEXT *ccstack = cxstack; | |
1686 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1687 | I32 gimme; |
06b5626a | 1688 | const char *stashname; |
a0d0e21e LW |
1689 | I32 count = 0; |
1690 | ||
1691 | if (MAXARG) | |
1692 | count = POPi; | |
27d41816 | 1693 | |
a0d0e21e | 1694 | for (;;) { |
2c375eb9 GS |
1695 | /* we may be in a higher stacklevel, so dig down deeper */ |
1696 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1697 | top_si = top_si->si_prev; | |
1698 | ccstack = top_si->si_cxstack; | |
1699 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1700 | } | |
a0d0e21e | 1701 | if (cxix < 0) { |
27d41816 DM |
1702 | if (GIMME != G_ARRAY) { |
1703 | EXTEND(SP, 1); | |
a0d0e21e | 1704 | RETPUSHUNDEF; |
27d41816 | 1705 | } |
a0d0e21e LW |
1706 | RETURN; |
1707 | } | |
f2a7f298 DG |
1708 | /* caller() should not report the automatic calls to &DB::sub */ |
1709 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1710 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1711 | count++; |
1712 | if (!count--) | |
1713 | break; | |
2c375eb9 | 1714 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1715 | } |
2c375eb9 GS |
1716 | |
1717 | cx = &ccstack[cxix]; | |
7766f137 | 1718 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1719 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1720 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1721 | field below is defined for any cx. */ |
f2a7f298 DG |
1722 | /* caller() should not report the automatic calls to &DB::sub */ |
1723 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1724 | cx = &ccstack[dbcxix]; |
06a5b730 | 1725 | } |
1726 | ||
ed094faf | 1727 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1728 | if (GIMME != G_ARRAY) { |
27d41816 | 1729 | EXTEND(SP, 1); |
ed094faf | 1730 | if (!stashname) |
3280af22 | 1731 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1732 | else { |
1733 | dTARGET; | |
ed094faf | 1734 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1735 | PUSHs(TARG); |
1736 | } | |
a0d0e21e LW |
1737 | RETURN; |
1738 | } | |
a0d0e21e | 1739 | |
b3ca2e83 | 1740 | EXTEND(SP, 11); |
27d41816 | 1741 | |
ed094faf | 1742 | if (!stashname) |
3280af22 | 1743 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1744 | else |
6e449a3a MHM |
1745 | mPUSHs(newSVpv(stashname, 0)); |
1746 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1747 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1748 | if (!MAXARG) |
1749 | RETURN; | |
7766f137 | 1750 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1751 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1752 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1753 | if (isGV(cvgv)) { |
561b68a9 | 1754 | SV * const sv = newSV(0); |
c445ea15 | 1755 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1756 | mPUSHs(sv); |
bf38a478 | 1757 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1758 | } |
1759 | else { | |
84bafc02 | 1760 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1761 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1762 | } |
a0d0e21e LW |
1763 | } |
1764 | else { | |
84bafc02 | 1765 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1766 | mPUSHi(0); |
a0d0e21e | 1767 | } |
54310121 | 1768 | gimme = (I32)cx->blk_gimme; |
1769 | if (gimme == G_VOID) | |
3280af22 | 1770 | PUSHs(&PL_sv_undef); |
54310121 | 1771 | else |
98625aca | 1772 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1773 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1774 | /* eval STRING */ |
85a64632 | 1775 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1776 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1777 | PUSHs(&PL_sv_no); |
0f79a09d | 1778 | } |
811a4de9 | 1779 | /* require */ |
0f79a09d | 1780 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1781 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1782 | PUSHs(&PL_sv_yes); |
06a5b730 | 1783 | } |
811a4de9 GS |
1784 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1785 | else { | |
1786 | PUSHs(&PL_sv_undef); | |
1787 | PUSHs(&PL_sv_undef); | |
1788 | } | |
4633a7c4 | 1789 | } |
a682de96 GS |
1790 | else { |
1791 | PUSHs(&PL_sv_undef); | |
1792 | PUSHs(&PL_sv_undef); | |
1793 | } | |
bafb2adc | 1794 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1795 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1796 | { |
66a1b24b AL |
1797 | AV * const ary = cx->blk_sub.argarray; |
1798 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1799 | |
3280af22 | 1800 | if (!PL_dbargs) { |
af3885a0 NC |
1801 | PL_dbargs = GvAV(gv_AVadd(gv_fetchpvs("DB::args", GV_ADDMULTI, |
1802 | SVt_PVAV))); | |
3ddcf04c | 1803 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1804 | } |
1805 | ||
3280af22 NIS |
1806 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1807 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1808 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1809 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1810 | } |
f3aa04c2 GS |
1811 | /* XXX only hints propagated via op_private are currently |
1812 | * visible (others are not easily accessible, since they | |
1813 | * use the global PL_hints) */ | |
6e449a3a | 1814 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1815 | { |
1816 | SV * mask ; | |
72dc9ed5 | 1817 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1818 | |
ac27b0f5 | 1819 | if (old_warnings == pWARN_NONE || |
114bafba | 1820 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1821 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1822 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1823 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1824 | /* Get the bit mask for $warnings::Bits{all}, because | |
1825 | * it could have been extended by warnings::register */ | |
1826 | SV **bits_all; | |
6673a63c | 1827 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1828 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1829 | mask = newSVsv(*bits_all); |
1830 | } | |
1831 | else { | |
1832 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1833 | } | |
1834 | } | |
e476b1b5 | 1835 | else |
72dc9ed5 | 1836 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1837 | mPUSHs(mask); |
e476b1b5 | 1838 | } |
b3ca2e83 | 1839 | |
c28fe1ec | 1840 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1841 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1842 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1843 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1844 | : &PL_sv_undef); |
a0d0e21e LW |
1845 | RETURN; |
1846 | } | |
1847 | ||
a0d0e21e LW |
1848 | PP(pp_reset) |
1849 | { | |
97aff369 | 1850 | dVAR; |
39644a26 | 1851 | dSP; |
10edeb5d | 1852 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1853 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1854 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1855 | RETURN; |
1856 | } | |
1857 | ||
dd2155a4 DM |
1858 | /* like pp_nextstate, but used instead when the debugger is active */ |
1859 | ||
a0d0e21e LW |
1860 | PP(pp_dbstate) |
1861 | { | |
27da23d5 | 1862 | dVAR; |
533c011a | 1863 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1864 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1865 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1866 | FREETMPS; |
1867 | ||
5df8de69 DM |
1868 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1869 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1870 | { |
39644a26 | 1871 | dSP; |
c09156bb | 1872 | register PERL_CONTEXT *cx; |
f54cb97a | 1873 | const I32 gimme = G_ARRAY; |
eb160463 | 1874 | U8 hasargs; |
0bd48802 AL |
1875 | GV * const gv = PL_DBgv; |
1876 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1877 | |
a0d0e21e | 1878 | if (!cv) |
cea2e8a9 | 1879 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1880 | |
aea4f609 DM |
1881 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1882 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1883 | return NORMAL; |
748a9306 | 1884 | |
a57c6685 | 1885 | ENTER; |
4633a7c4 LW |
1886 | SAVETMPS; |
1887 | ||
3280af22 | 1888 | SAVEI32(PL_debug); |
55497cff | 1889 | SAVESTACK_POS(); |
3280af22 | 1890 | PL_debug = 0; |
748a9306 | 1891 | hasargs = 0; |
924508f0 | 1892 | SPAGAIN; |
748a9306 | 1893 | |
aed2304a | 1894 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1895 | CvDEPTH(cv)++; |
1896 | PUSHMARK(SP); | |
1897 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1898 | CvDEPTH(cv)--; | |
1899 | FREETMPS; | |
a57c6685 | 1900 | LEAVE; |
c127bd3a SF |
1901 | return NORMAL; |
1902 | } | |
1903 | else { | |
1904 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1905 | PUSHSUB_DB(cx); | |
1906 | cx->blk_sub.retop = PL_op->op_next; | |
1907 | CvDEPTH(cv)++; | |
1908 | SAVECOMPPAD(); | |
1909 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1910 | RETURNOP(CvSTART(cv)); | |
1911 | } | |
a0d0e21e LW |
1912 | } |
1913 | else | |
1914 | return NORMAL; | |
1915 | } | |
1916 | ||
a0d0e21e LW |
1917 | PP(pp_enteriter) |
1918 | { | |
27da23d5 | 1919 | dVAR; dSP; dMARK; |
c09156bb | 1920 | register PERL_CONTEXT *cx; |
f54cb97a | 1921 | const I32 gimme = GIMME_V; |
a0d0e21e | 1922 | SV **svp; |
840fe433 | 1923 | U8 cxtype = CXt_LOOP_FOR; |
7766f137 | 1924 | #ifdef USE_ITHREADS |
e846cb92 | 1925 | PAD *iterdata; |
7766f137 | 1926 | #endif |
a0d0e21e | 1927 | |
d343c3ef | 1928 | ENTER_with_name("loop1"); |
4633a7c4 LW |
1929 | SAVETMPS; |
1930 | ||
533c011a | 1931 | if (PL_op->op_targ) { |
14f338dc DM |
1932 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1933 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1934 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1935 | SVs_PADSTALE, SVs_PADSTALE); | |
1936 | } | |
09edbca0 | 1937 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
c3564e5c | 1938 | #ifndef USE_ITHREADS |
dd2155a4 | 1939 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
c3564e5c | 1940 | #else |
e846cb92 | 1941 | iterdata = NULL; |
7766f137 | 1942 | #endif |
54b9620d MB |
1943 | } |
1944 | else { | |
159b6efe | 1945 | GV * const gv = MUTABLE_GV(POPs); |
7766f137 | 1946 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1947 | SAVEGENERICSV(*svp); |
561b68a9 | 1948 | *svp = newSV(0); |
7766f137 | 1949 | #ifdef USE_ITHREADS |
e846cb92 | 1950 | iterdata = (PAD*)gv; |
7766f137 | 1951 | #endif |
54b9620d | 1952 | } |
4633a7c4 | 1953 | |
0d863452 RH |
1954 | if (PL_op->op_private & OPpITER_DEF) |
1955 | cxtype |= CXp_FOR_DEF; | |
1956 | ||
d343c3ef | 1957 | ENTER_with_name("loop2"); |
a0d0e21e | 1958 | |
7766f137 GS |
1959 | PUSHBLOCK(cx, cxtype, SP); |
1960 | #ifdef USE_ITHREADS | |
e846cb92 | 1961 | PUSHLOOP_FOR(cx, iterdata, MARK, PL_op->op_targ); |
7766f137 | 1962 | #else |
52d1f6fb | 1963 | PUSHLOOP_FOR(cx, svp, MARK, 0); |
7766f137 | 1964 | #endif |
533c011a | 1965 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1966 | SV *maybe_ary = POPs; |
1967 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1968 | dPOPss; |
d01136d6 | 1969 | SV * const right = maybe_ary; |
984a4bea RD |
1970 | SvGETMAGIC(sv); |
1971 | SvGETMAGIC(right); | |
4fe3f0fa | 1972 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 1973 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
1974 | cx->cx_type |= CXt_LOOP_LAZYIV; |
1975 | /* Make sure that no-one re-orders cop.h and breaks our | |
1976 | assumptions */ | |
1977 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
1978 | #ifdef NV_PRESERVES_UV |
1979 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
1980 | (SvNV(sv) > (NV)IV_MAX))) | |
1981 | || | |
1982 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
1983 | (SvNV(right) < (NV)IV_MIN)))) | |
1984 | #else | |
1985 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
1986 | || | |
1987 | ((SvNV(sv) > 0) && | |
1988 | ((SvUV(sv) > (UV)IV_MAX) || | |
1989 | (SvNV(sv) > (NV)UV_MAX))))) | |
1990 | || | |
1991 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
1992 | || | |
1993 | ((SvNV(right) > 0) && | |
1994 | ((SvUV(right) > (UV)IV_MAX) || | |
1995 | (SvNV(right) > (NV)UV_MAX)))))) | |
1996 | #endif | |
076d9a11 | 1997 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
1998 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
1999 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2000 | #ifdef DEBUGGING |
2001 | /* for correct -Dstv display */ | |
2002 | cx->blk_oldsp = sp - PL_stack_base; | |
2003 | #endif | |
89ea2908 | 2004 | } |
3f63a782 | 2005 | else { |
d01136d6 BS |
2006 | cx->cx_type &= ~CXTYPEMASK; |
2007 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2008 | /* Make sure that no-one re-orders cop.h and breaks our | |
2009 | assumptions */ | |
2010 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2011 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2012 | cx->blk_loop.state_u.lazysv.end = right; | |
2013 | SvREFCNT_inc(right); | |
2014 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2015 | /* This will do the upgrade to SVt_PV, and warn if the value |
2016 | is uninitialised. */ | |
10516c54 | 2017 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2018 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2019 | to replace !SvOK() with a pointer to "". */ | |
2020 | if (!SvOK(right)) { | |
2021 | SvREFCNT_dec(right); | |
d01136d6 | 2022 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2023 | } |
3f63a782 | 2024 | } |
89ea2908 | 2025 | } |
d01136d6 | 2026 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2027 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2028 | SvREFCNT_inc(maybe_ary); |
2029 | cx->blk_loop.state_u.ary.ix = | |
2030 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2031 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2032 | -1; | |
ef3e5ea9 | 2033 | } |
89ea2908 | 2034 | } |
d01136d6 BS |
2035 | else { /* iterating over items on the stack */ |
2036 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2037 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2038 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2039 | } |
2040 | else { | |
d01136d6 | 2041 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2042 | } |
4633a7c4 | 2043 | } |
a0d0e21e LW |
2044 | |
2045 | RETURN; | |
2046 | } | |
2047 | ||
2048 | PP(pp_enterloop) | |
2049 | { | |
27da23d5 | 2050 | dVAR; dSP; |
c09156bb | 2051 | register PERL_CONTEXT *cx; |
f54cb97a | 2052 | const I32 gimme = GIMME_V; |
a0d0e21e | 2053 | |
d343c3ef | 2054 | ENTER_with_name("loop1"); |
a0d0e21e | 2055 | SAVETMPS; |
d343c3ef | 2056 | ENTER_with_name("loop2"); |
a0d0e21e | 2057 | |
3b719c58 NC |
2058 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2059 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2060 | |
2061 | RETURN; | |
2062 | } | |
2063 | ||
2064 | PP(pp_leaveloop) | |
2065 | { | |
27da23d5 | 2066 | dVAR; dSP; |
c09156bb | 2067 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2068 | I32 gimme; |
2069 | SV **newsp; | |
2070 | PMOP *newpm; | |
2071 | SV **mark; | |
2072 | ||
2073 | POPBLOCK(cx,newpm); | |
3b719c58 | 2074 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2075 | mark = newsp; |
a8bba7fa | 2076 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2077 | |
a1f49e72 | 2078 | TAINT_NOT; |
54310121 | 2079 | if (gimme == G_VOID) |
6f207bd3 | 2080 | NOOP; |
54310121 | 2081 | else if (gimme == G_SCALAR) { |
2082 | if (mark < SP) | |
2083 | *++newsp = sv_mortalcopy(*SP); | |
2084 | else | |
3280af22 | 2085 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2086 | } |
2087 | else { | |
a1f49e72 | 2088 | while (mark < SP) { |
a0d0e21e | 2089 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2090 | TAINT_NOT; /* Each item is independent */ |
2091 | } | |
a0d0e21e | 2092 | } |
f86702cc | 2093 | SP = newsp; |
2094 | PUTBACK; | |
2095 | ||
a8bba7fa | 2096 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2097 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2098 | |
d343c3ef GG |
2099 | LEAVE_with_name("loop2"); |
2100 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2101 | |
f86702cc | 2102 | return NORMAL; |
a0d0e21e LW |
2103 | } |
2104 | ||
2105 | PP(pp_return) | |
2106 | { | |
27da23d5 | 2107 | dVAR; dSP; dMARK; |
c09156bb | 2108 | register PERL_CONTEXT *cx; |
f86702cc | 2109 | bool popsub2 = FALSE; |
b45de488 | 2110 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2111 | I32 gimme; |
2112 | SV **newsp; | |
2113 | PMOP *newpm; | |
2114 | I32 optype = 0; | |
b0d9ce38 | 2115 | SV *sv; |
b263a1ad | 2116 | OP *retop = NULL; |
a0d0e21e | 2117 | |
0bd48802 AL |
2118 | const I32 cxix = dopoptosub(cxstack_ix); |
2119 | ||
9850bf21 RH |
2120 | if (cxix < 0) { |
2121 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2122 | * sort block, which is a CXt_NULL | |
2123 | * not a CXt_SUB */ | |
2124 | dounwind(0); | |
d7507f74 RH |
2125 | PL_stack_base[1] = *PL_stack_sp; |
2126 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2127 | return 0; |
2128 | } | |
9850bf21 RH |
2129 | else |
2130 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2131 | } |
a0d0e21e LW |
2132 | if (cxix < cxstack_ix) |
2133 | dounwind(cxix); | |
2134 | ||
d7507f74 RH |
2135 | if (CxMULTICALL(&cxstack[cxix])) { |
2136 | gimme = cxstack[cxix].blk_gimme; | |
2137 | if (gimme == G_VOID) | |
2138 | PL_stack_sp = PL_stack_base; | |
2139 | else if (gimme == G_SCALAR) { | |
2140 | PL_stack_base[1] = *PL_stack_sp; | |
2141 | PL_stack_sp = PL_stack_base + 1; | |
2142 | } | |
9850bf21 | 2143 | return 0; |
d7507f74 | 2144 | } |
9850bf21 | 2145 | |
a0d0e21e | 2146 | POPBLOCK(cx,newpm); |
6b35e009 | 2147 | switch (CxTYPE(cx)) { |
a0d0e21e | 2148 | case CXt_SUB: |
f86702cc | 2149 | popsub2 = TRUE; |
f39bc417 | 2150 | retop = cx->blk_sub.retop; |
5dd42e15 | 2151 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2152 | break; |
2153 | case CXt_EVAL: | |
b45de488 GS |
2154 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2155 | clear_errsv = TRUE; | |
a0d0e21e | 2156 | POPEVAL(cx); |
f39bc417 | 2157 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2158 | if (CxTRYBLOCK(cx)) |
2159 | break; | |
067f92a0 | 2160 | lex_end(); |
748a9306 LW |
2161 | if (optype == OP_REQUIRE && |
2162 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2163 | { | |
54310121 | 2164 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2165 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2166 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 2167 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
748a9306 | 2168 | } |
a0d0e21e | 2169 | break; |
7766f137 GS |
2170 | case CXt_FORMAT: |
2171 | POPFORMAT(cx); | |
f39bc417 | 2172 | retop = cx->blk_sub.retop; |
7766f137 | 2173 | break; |
a0d0e21e | 2174 | default: |
cea2e8a9 | 2175 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2176 | } |
2177 | ||
a1f49e72 | 2178 | TAINT_NOT; |
a0d0e21e | 2179 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2180 | if (MARK < SP) { |
2181 | if (popsub2) { | |
a8bba7fa | 2182 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2183 | if (SvTEMP(TOPs)) { |
2184 | *++newsp = SvREFCNT_inc(*SP); | |
2185 | FREETMPS; | |
2186 | sv_2mortal(*newsp); | |
959e3673 GS |
2187 | } |
2188 | else { | |
2189 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2190 | FREETMPS; |
959e3673 GS |
2191 | *++newsp = sv_mortalcopy(sv); |
2192 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2193 | } |
959e3673 GS |
2194 | } |
2195 | else | |
a29cdaf0 | 2196 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2197 | } |
2198 | else | |
a29cdaf0 | 2199 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2200 | } |
2201 | else | |
3280af22 | 2202 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2203 | } |
54310121 | 2204 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2205 | while (++MARK <= SP) { |
f86702cc | 2206 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2207 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2208 | TAINT_NOT; /* Each item is independent */ |
2209 | } | |
a0d0e21e | 2210 | } |
3280af22 | 2211 | PL_stack_sp = newsp; |
a0d0e21e | 2212 | |
5dd42e15 | 2213 | LEAVE; |
f86702cc | 2214 | /* Stack values are safe: */ |
2215 | if (popsub2) { | |
5dd42e15 | 2216 | cxstack_ix--; |
b0d9ce38 | 2217 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2218 | } |
b0d9ce38 | 2219 | else |
c445ea15 | 2220 | sv = NULL; |
3280af22 | 2221 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2222 | |
b0d9ce38 | 2223 | LEAVESUB(sv); |
8433848b | 2224 | if (clear_errsv) { |
ab69dbc2 | 2225 | CLEAR_ERRSV(); |
8433848b | 2226 | } |
f39bc417 | 2227 | return retop; |
a0d0e21e LW |
2228 | } |
2229 | ||
2230 | PP(pp_last) | |
2231 | { | |
27da23d5 | 2232 | dVAR; dSP; |
a0d0e21e | 2233 | I32 cxix; |
c09156bb | 2234 | register PERL_CONTEXT *cx; |
f86702cc | 2235 | I32 pop2 = 0; |
a0d0e21e | 2236 | I32 gimme; |
8772537c | 2237 | I32 optype; |
b263a1ad | 2238 | OP *nextop = NULL; |
a0d0e21e LW |
2239 | SV **newsp; |
2240 | PMOP *newpm; | |
a8bba7fa | 2241 | SV **mark; |
c445ea15 | 2242 | SV *sv = NULL; |
9d4ba2ae | 2243 | |
a0d0e21e | 2244 | |
533c011a | 2245 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2246 | cxix = dopoptoloop(cxstack_ix); |
2247 | if (cxix < 0) | |
a651a37d | 2248 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2249 | } |
2250 | else { | |
2251 | cxix = dopoptolabel(cPVOP->op_pv); | |
2252 | if (cxix < 0) | |
cea2e8a9 | 2253 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2254 | } |
2255 | if (cxix < cxstack_ix) | |
2256 | dounwind(cxix); | |
2257 | ||
2258 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2259 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2260 | mark = newsp; |
6b35e009 | 2261 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2262 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2263 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2264 | case CXt_LOOP_FOR: |
2265 | case CXt_LOOP_PLAIN: | |
2266 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2267 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2268 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2269 | break; |
f86702cc | 2270 | case CXt_SUB: |
f86702cc | 2271 | pop2 = CXt_SUB; |
f39bc417 | 2272 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2273 | break; |
f86702cc | 2274 | case CXt_EVAL: |
2275 | POPEVAL(cx); | |
f39bc417 | 2276 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2277 | break; |
7766f137 GS |
2278 | case CXt_FORMAT: |
2279 | POPFORMAT(cx); | |
f39bc417 | 2280 | nextop = cx->blk_sub.retop; |
7766f137 | 2281 | break; |
a0d0e21e | 2282 | default: |
cea2e8a9 | 2283 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2284 | } |
2285 | ||
a1f49e72 | 2286 | TAINT_NOT; |
a0d0e21e | 2287 | if (gimme == G_SCALAR) { |
f86702cc | 2288 | if (MARK < SP) |
2289 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2290 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2291 | else |
3280af22 | 2292 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2293 | } |
54310121 | 2294 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2295 | while (++MARK <= SP) { |
f86702cc | 2296 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2297 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2298 | TAINT_NOT; /* Each item is independent */ |
2299 | } | |
f86702cc | 2300 | } |
2301 | SP = newsp; | |
2302 | PUTBACK; | |
2303 | ||
5dd42e15 DM |
2304 | LEAVE; |
2305 | cxstack_ix--; | |
f86702cc | 2306 | /* Stack values are safe: */ |
2307 | switch (pop2) { | |
c6fdafd0 | 2308 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2309 | case CXt_LOOP_PLAIN: |
d01136d6 | 2310 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2311 | case CXt_LOOP_FOR: |
a8bba7fa | 2312 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2313 | LEAVE; |
f86702cc | 2314 | break; |
2315 | case CXt_SUB: | |
b0d9ce38 | 2316 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2317 | break; |
a0d0e21e | 2318 | } |
3280af22 | 2319 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2320 | |
b0d9ce38 | 2321 | LEAVESUB(sv); |
9d4ba2ae AL |
2322 | PERL_UNUSED_VAR(optype); |
2323 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2324 | return nextop; |
a0d0e21e LW |
2325 | } |
2326 | ||
2327 | PP(pp_next) | |
2328 | { | |
27da23d5 | 2329 | dVAR; |
a0d0e21e | 2330 | I32 cxix; |
c09156bb | 2331 | register PERL_CONTEXT *cx; |
85538317 | 2332 | I32 inner; |
a0d0e21e | 2333 | |
533c011a | 2334 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2335 | cxix = dopoptoloop(cxstack_ix); |
2336 | if (cxix < 0) | |
a651a37d | 2337 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2338 | } |
2339 | else { | |
2340 | cxix = dopoptolabel(cPVOP->op_pv); | |
2341 | if (cxix < 0) | |
cea2e8a9 | 2342 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2343 | } |
2344 | if (cxix < cxstack_ix) | |
2345 | dounwind(cxix); | |
2346 | ||
85538317 GS |
2347 | /* clear off anything above the scope we're re-entering, but |
2348 | * save the rest until after a possible continue block */ | |
2349 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2350 | TOPBLOCK(cx); |
85538317 GS |
2351 | if (PL_scopestack_ix < inner) |
2352 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2353 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2354 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2355 | } |
2356 | ||
2357 | PP(pp_redo) | |
2358 | { | |
27da23d5 | 2359 | dVAR; |
a0d0e21e | 2360 | I32 cxix; |
c09156bb | 2361 | register PERL_CONTEXT *cx; |
a0d0e21e | 2362 | I32 oldsave; |
a034e688 | 2363 | OP* redo_op; |
a0d0e21e | 2364 | |
533c011a | 2365 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2366 | cxix = dopoptoloop(cxstack_ix); |
2367 | if (cxix < 0) | |
a651a37d | 2368 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2369 | } |
2370 | else { | |
2371 | cxix = dopoptolabel(cPVOP->op_pv); | |
2372 | if (cxix < 0) | |
cea2e8a9 | 2373 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2374 | } |
2375 | if (cxix < cxstack_ix) | |
2376 | dounwind(cxix); | |
2377 | ||
022eaa24 | 2378 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2379 | if (redo_op->op_type == OP_ENTER) { |
2380 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2381 | cxstack_ix++; | |
2382 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2383 | redo_op = redo_op->op_next; | |
2384 | } | |
2385 | ||
a0d0e21e | 2386 | TOPBLOCK(cx); |
3280af22 | 2387 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2388 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2389 | FREETMPS; |
3a1b2b9e | 2390 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2391 | return redo_op; |
a0d0e21e LW |
2392 | } |
2393 | ||
0824fdcb | 2394 | STATIC OP * |
bfed75c6 | 2395 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2396 | { |
97aff369 | 2397 | dVAR; |
a0d0e21e | 2398 | OP **ops = opstack; |
bfed75c6 | 2399 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2400 | |
7918f24d NC |
2401 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2402 | ||
fc36a67e | 2403 | if (ops >= oplimit) |
cea2e8a9 | 2404 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2405 | if (o->op_type == OP_LEAVE || |
2406 | o->op_type == OP_SCOPE || | |
2407 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2408 | o->op_type == OP_LEAVESUB || |
11343788 | 2409 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2410 | { |
5dc0d613 | 2411 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2412 | if (ops >= oplimit) |
cea2e8a9 | 2413 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2414 | } |
c4aa4e48 | 2415 | *ops = 0; |
11343788 | 2416 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2417 | OP *kid; |
a0d0e21e | 2418 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2419 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2420 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2421 | const char *kid_label = CopLABEL(kCOP); | |
2422 | if (kid_label && strEQ(kid_label, label)) | |
2423 | return kid; | |
2424 | } | |
a0d0e21e | 2425 | } |
11343788 | 2426 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2427 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2428 | continue; |
ed8d0fe2 SM |
2429 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2430 | if (ops == opstack) | |
2431 | *ops++ = kid; | |
2432 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2433 | ops[-1]->op_type == OP_DBSTATE) | |
2434 | ops[-1] = kid; | |
2435 | else | |
2436 | *ops++ = kid; | |
2437 | } | |
155aba94 | 2438 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2439 | return o; |
a0d0e21e LW |
2440 | } |
2441 | } | |
c4aa4e48 | 2442 | *ops = 0; |
a0d0e21e LW |
2443 | return 0; |
2444 | } | |
2445 | ||
a0d0e21e LW |
2446 | PP(pp_goto) |
2447 | { | |
27da23d5 | 2448 | dVAR; dSP; |
cbbf8932 | 2449 | OP *retop = NULL; |
a0d0e21e | 2450 | I32 ix; |
c09156bb | 2451 | register PERL_CONTEXT *cx; |
fc36a67e | 2452 | #define GOTO_DEPTH 64 |
2453 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2454 | const char *label = NULL; |
bfed75c6 AL |
2455 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2456 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2457 | |
533c011a | 2458 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2459 | SV * const sv = POPs; |
a0d0e21e LW |
2460 | |
2461 | /* This egregious kludge implements goto &subroutine */ | |
2462 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2463 | I32 cxix; | |
c09156bb | 2464 | register PERL_CONTEXT *cx; |
ea726b52 | 2465 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2466 | SV** mark; |
2467 | I32 items = 0; | |
2468 | I32 oldsave; | |
b1464ded | 2469 | bool reified = 0; |
a0d0e21e | 2470 | |
e8f7dd13 | 2471 | retry: |
4aa0a1f7 | 2472 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2473 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2474 | if (gv) { |
7fc63493 | 2475 | GV *autogv; |
e8f7dd13 GS |
2476 | SV *tmpstr; |
2477 | /* autoloaded stub? */ | |
2478 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2479 | goto retry; | |
2480 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2481 | GvNAMELEN(gv), FALSE); | |
2482 | if (autogv && (cv = GvCV(autogv))) | |
2483 | goto retry; | |
2484 | tmpstr = sv_newmortal(); | |
c445ea15 | 2485 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2486 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2487 | } |
cea2e8a9 | 2488 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2489 | } |
2490 | ||
a0d0e21e | 2491 | /* First do some returnish stuff. */ |
b37c2d43 | 2492 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2493 | FREETMPS; |
a0d0e21e LW |
2494 | cxix = dopoptosub(cxstack_ix); |
2495 | if (cxix < 0) | |
cea2e8a9 | 2496 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2497 | if (cxix < cxstack_ix) |
2498 | dounwind(cxix); | |
2499 | TOPBLOCK(cx); | |
2d43a17f | 2500 | SPAGAIN; |
564abe23 | 2501 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2502 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2503 | if (CxREALEVAL(cx)) |
2504 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2505 | else | |
2506 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2507 | } |
9850bf21 RH |
2508 | else if (CxMULTICALL(cx)) |
2509 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2510 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2511 | /* put @_ back onto stack */ |
a0d0e21e | 2512 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2513 | |
93965878 | 2514 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2515 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2516 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2517 | SvREFCNT_dec(GvAV(PL_defgv)); |
2518 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2519 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2520 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2521 | if (AvREAL(av)) { |
b1464ded DM |
2522 | reified = 1; |
2523 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2524 | av = newAV(); |
2525 | av_extend(av, items-1); | |
11ca45c0 | 2526 | AvREIFY_only(av); |
ad64d0ec | 2527 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2528 | } |
a0d0e21e | 2529 | } |
aed2304a | 2530 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2531 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2532 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2533 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2534 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2535 | } |
a45cdc79 DM |
2536 | mark = SP; |
2537 | SP += items; | |
6b35e009 | 2538 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2539 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2540 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2541 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2542 | LEAVE_SCOPE(oldsave); |
2543 | ||
2544 | /* Now do some callish stuff. */ | |
2545 | SAVETMPS; | |
5023d17a | 2546 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2547 | if (CvISXSUB(cv)) { |
b37c2d43 | 2548 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2549 | SV **newsp; |
2550 | I32 gimme; | |
b1464ded DM |
2551 | if (reified) { |
2552 | I32 index; | |
2553 | for (index=0; index<items; index++) | |
2554 | sv_2mortal(SP[-index]); | |
2555 | } | |
1fa4e549 | 2556 | |
b37c2d43 AL |
2557 | /* XS subs don't have a CxSUB, so pop it */ |
2558 | POPBLOCK(cx, PL_curpm); | |
2559 | /* Push a mark for the start of arglist */ | |
2560 | PUSHMARK(mark); | |
2561 | PUTBACK; | |
2562 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2563 | LEAVE; |
5eff7df7 | 2564 | return retop; |
a0d0e21e LW |
2565 | } |
2566 | else { | |
b37c2d43 | 2567 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2568 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2569 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2570 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2571 | cx->cx_type = CXt_SUB; |
b150fb22 | 2572 | } |
a0d0e21e | 2573 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2574 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2575 | |
a0d0e21e LW |
2576 | CvDEPTH(cv)++; |
2577 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2578 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2579 | else { |
2b9dff67 | 2580 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2581 | sub_crush_depth(cv); |
26019298 | 2582 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2583 | } |
fd617465 DM |
2584 | SAVECOMPPAD(); |
2585 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2586 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2587 | { |
502c6561 | 2588 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2589 | |
3280af22 | 2590 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2591 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2592 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2593 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2594 | |
2595 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2596 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2597 | if (AvARRAY(av) != ary) { |
2598 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2599 | AvARRAY(av) = ary; |
a0d0e21e LW |
2600 | } |
2601 | if (items >= AvMAX(av) + 1) { | |
2602 | AvMAX(av) = items - 1; | |
2603 | Renew(ary,items+1,SV*); | |
2604 | AvALLOC(av) = ary; | |
9c6bc640 | 2605 | AvARRAY(av) = ary; |
a0d0e21e LW |
2606 | } |
2607 | } | |
a45cdc79 | 2608 | ++mark; |
a0d0e21e | 2609 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2610 | AvFILLp(av) = items - 1; |
d8b46c1b | 2611 | assert(!AvREAL(av)); |
b1464ded DM |
2612 | if (reified) { |
2613 | /* transfer 'ownership' of refcnts to new @_ */ | |
2614 | AvREAL_on(av); | |
2615 | AvREIFY_off(av); | |
2616 | } | |
a0d0e21e LW |
2617 | while (items--) { |
2618 | if (*mark) | |
2619 | SvTEMP_off(*mark); | |
2620 | mark++; | |
2621 | } | |
2622 | } | |
491527d0 | 2623 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2624 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2625 | if (PERLDB_GOTO) { |
b96d8cd9 | 2626 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2627 | if (gotocv) { |
2628 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2629 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2630 | PL_stack_sp--; |
2631 | } | |
491527d0 | 2632 | } |
1ce6579f | 2633 | } |
a0d0e21e LW |
2634 | RETURNOP(CvSTART(cv)); |
2635 | } | |
2636 | } | |
1614b0e3 | 2637 | else { |
0510663f | 2638 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2639 | if (!(do_dump || *label)) |
cea2e8a9 | 2640 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2641 | } |
a0d0e21e | 2642 | } |
533c011a | 2643 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2644 | if (! do_dump) |
cea2e8a9 | 2645 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2646 | } |
2647 | else | |
2648 | label = cPVOP->op_pv; | |
2649 | ||
2650 | if (label && *label) { | |
cbbf8932 | 2651 | OP *gotoprobe = NULL; |
3b2447bc | 2652 | bool leaving_eval = FALSE; |
33d34e4c | 2653 | bool in_block = FALSE; |
cbbf8932 | 2654 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2655 | |
2656 | /* find label */ | |
2657 | ||
d4c19fe8 | 2658 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2659 | *enterops = 0; |
2660 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2661 | cx = &cxstack[ix]; | |
6b35e009 | 2662 | switch (CxTYPE(cx)) { |
a0d0e21e | 2663 | case CXt_EVAL: |
3b2447bc | 2664 | leaving_eval = TRUE; |
971ecbe6 | 2665 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2666 | gotoprobe = (last_eval_cx ? |
2667 | last_eval_cx->blk_eval.old_eval_root : | |
2668 | PL_eval_root); | |
2669 | last_eval_cx = cx; | |
9c5794fe RH |
2670 | break; |
2671 | } | |
2672 | /* else fall through */ | |
c6fdafd0 | 2673 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2674 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2675 | case CXt_LOOP_FOR: |
2676 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2677 | case CXt_GIVEN: |
2678 | case CXt_WHEN: | |
a0d0e21e LW |
2679 | gotoprobe = cx->blk_oldcop->op_sibling; |
2680 | break; | |
2681 | case CXt_SUBST: | |
2682 | continue; | |
2683 | case CXt_BLOCK: | |
33d34e4c | 2684 | if (ix) { |
a0d0e21e | 2685 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2686 | in_block = TRUE; |
2687 | } else | |
3280af22 | 2688 | gotoprobe = PL_main_root; |
a0d0e21e | 2689 | break; |
b3933176 | 2690 | case CXt_SUB: |
9850bf21 | 2691 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2692 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2693 | break; | |
2694 | } | |
2695 | /* FALL THROUGH */ | |
7766f137 | 2696 | case CXt_FORMAT: |
0a753a76 | 2697 | case CXt_NULL: |
a651a37d | 2698 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2699 | default: |
2700 | if (ix) | |
cea2e8a9 | 2701 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2702 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2703 | break; |
2704 | } | |
2b597662 GS |
2705 | if (gotoprobe) { |
2706 | retop = dofindlabel(gotoprobe, label, | |
2707 | enterops, enterops + GOTO_DEPTH); | |
2708 | if (retop) | |
2709 | break; | |
2710 | } | |
3280af22 | 2711 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2712 | } |
2713 | if (!retop) | |
cea2e8a9 | 2714 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2715 | |
3b2447bc RH |
2716 | /* if we're leaving an eval, check before we pop any frames |
2717 | that we're not going to punt, otherwise the error | |
2718 | won't be caught */ | |
2719 | ||
2720 | if (leaving_eval && *enterops && enterops[1]) { | |
2721 | I32 i; | |
2722 | for (i = 1; enterops[i]; i++) | |
2723 | if (enterops[i]->op_type == OP_ENTERITER) | |
2724 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2725 | } | |
2726 | ||
b500e03b GG |
2727 | if (*enterops && enterops[1]) { |
2728 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2729 | if (enterops[i]) | |
2730 | deprecate("\"goto\" to jump into a construct"); | |
2731 | } | |
2732 | ||
a0d0e21e LW |
2733 | /* pop unwanted frames */ |
2734 | ||
2735 | if (ix < cxstack_ix) { | |
2736 | I32 oldsave; | |
2737 | ||
2738 | if (ix < 0) | |
2739 | ix = 0; | |
2740 | dounwind(ix); | |
2741 | TOPBLOCK(cx); | |
3280af22 | 2742 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2743 | LEAVE_SCOPE(oldsave); |
2744 | } | |
2745 | ||
2746 | /* push wanted frames */ | |
2747 | ||
748a9306 | 2748 | if (*enterops && enterops[1]) { |
0bd48802 | 2749 | OP * const oldop = PL_op; |
33d34e4c AE |
2750 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2751 | for (; enterops[ix]; ix++) { | |
533c011a | 2752 | PL_op = enterops[ix]; |
84902520 TB |
2753 | /* Eventually we may want to stack the needed arguments |
2754 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2755 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2756 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2757 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2758 | } |
533c011a | 2759 | PL_op = oldop; |
a0d0e21e LW |
2760 | } |
2761 | } | |
2762 | ||
2763 | if (do_dump) { | |
a5f75d66 | 2764 | #ifdef VMS |
6b88bc9c | 2765 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2766 | #endif |
3280af22 NIS |
2767 | PL_restartop = retop; |
2768 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2769 | |
2770 | my_unexec(); | |
2771 | ||
3280af22 NIS |
2772 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2773 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2774 | } |
2775 | ||
2776 | RETURNOP(retop); | |
2777 | } | |
2778 | ||
2779 | PP(pp_exit) | |
2780 | { | |
97aff369 | 2781 | dVAR; |
39644a26 | 2782 | dSP; |
a0d0e21e LW |
2783 | I32 anum; |
2784 | ||
2785 | if (MAXARG < 1) | |
2786 | anum = 0; | |
ff0cee69 | 2787 | else { |
a0d0e21e | 2788 | anum = SvIVx(POPs); |
d98f61e7 GS |
2789 | #ifdef VMS |
2790 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2791 | anum = 0; |
96e176bf | 2792 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2793 | #endif |
2794 | } | |
cc3604b1 | 2795 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2796 | #ifdef PERL_MAD |
2797 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2798 | if (anum || !(PL_minus_c && PL_madskills)) | |
2799 | my_exit(anum); | |
2800 | #else | |
a0d0e21e | 2801 | my_exit(anum); |
81d86705 | 2802 | #endif |
3280af22 | 2803 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2804 | RETURN; |
2805 | } | |
2806 | ||
a0d0e21e LW |
2807 | /* Eval. */ |
2808 | ||
0824fdcb | 2809 | STATIC void |
cea2e8a9 | 2810 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2811 | { |
504618e9 | 2812 | const char *s = SvPVX_const(sv); |
890ce7af | 2813 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2814 | I32 line = 1; |
a0d0e21e | 2815 | |
7918f24d NC |
2816 | PERL_ARGS_ASSERT_SAVE_LINES; |
2817 | ||
a0d0e21e | 2818 | while (s && s < send) { |
f54cb97a | 2819 | const char *t; |
b9f83d2f | 2820 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2821 | |
1d963ff3 | 2822 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2823 | if (t) |
2824 | t++; | |
2825 | else | |
2826 | t = send; | |
2827 | ||
2828 | sv_setpvn(tmpstr, s, t - s); | |
2829 | av_store(array, line++, tmpstr); | |
2830 | s = t; | |
2831 | } | |
2832 | } | |
2833 | ||
0824fdcb | 2834 | STATIC OP * |
cea2e8a9 | 2835 | S_docatch(pTHX_ OP *o) |
1e422769 | 2836 | { |
97aff369 | 2837 | dVAR; |
6224f72b | 2838 | int ret; |
06b5626a | 2839 | OP * const oldop = PL_op; |
db36c5a1 | 2840 | dJMPENV; |
1e422769 | 2841 | |
1e422769 | 2842 | #ifdef DEBUGGING |
54310121 | 2843 | assert(CATCH_GET == TRUE); |
1e422769 | 2844 | #endif |
312caa8e | 2845 | PL_op = o; |
8bffa5f8 | 2846 | |
14dd3ad8 | 2847 | JMPENV_PUSH(ret); |
6224f72b | 2848 | switch (ret) { |
312caa8e | 2849 | case 0: |
abd70938 DM |
2850 | assert(cxstack_ix >= 0); |
2851 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2852 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2853 | redo_body: |
85aaa934 | 2854 | CALLRUNOPS(aTHX); |
312caa8e CS |
2855 | break; |
2856 | case 3: | |
8bffa5f8 | 2857 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2858 | |
2859 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2860 | * of the stack; the way die_where() currently works, this | |
2861 | * assumption is valid. In theory The cur_top_env value should be | |
2862 | * returned in another global, the way retop (aka PL_restartop) | |
2863 | * is. */ | |
2864 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2865 | ||
2866 | if (PL_restartop | |
2867 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2868 | { | |
312caa8e CS |
2869 | PL_op = PL_restartop; |
2870 | PL_restartop = 0; | |
2871 | goto redo_body; | |
2872 | } | |
2873 | /* FALL THROUGH */ | |
2874 | default: | |
14dd3ad8 | 2875 | JMPENV_POP; |
533c011a | 2876 | PL_op = oldop; |
6224f72b | 2877 | JMPENV_JUMP(ret); |
1e422769 | 2878 | /* NOTREACHED */ |
1e422769 | 2879 | } |
14dd3ad8 | 2880 | JMPENV_POP; |
533c011a | 2881 | PL_op = oldop; |
5f66b61c | 2882 | return NULL; |
1e422769 | 2883 | } |
2884 | ||
c277df42 | 2885 | OP * |
bfed75c6 | 2886 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2887 | /* sv Text to convert to OP tree. */ |
2888 | /* startop op_free() this to undo. */ | |
2889 | /* code Short string id of the caller. */ | |
2890 | { | |
f7997f86 | 2891 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2892 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2893 | PERL_CONTEXT *cx; |
2894 | SV **newsp; | |
b094c71d | 2895 | I32 gimme = G_VOID; |
c277df42 IZ |
2896 | I32 optype; |
2897 | OP dummy; | |
83ee9e09 GS |
2898 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2899 | char *tmpbuf = tbuf; | |
c277df42 | 2900 | char *safestr; |
a3985cdc | 2901 | int runtime; |
601f1833 | 2902 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2903 | STRLEN len; |
c277df42 | 2904 | |
7918f24d NC |
2905 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2906 | ||
d343c3ef | 2907 | ENTER_with_name("eval"); |
5486870f | 2908 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2909 | SAVETMPS; |
2910 | /* switch to eval mode */ | |
2911 | ||
923e4eb5 | 2912 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2913 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2914 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2915 | } |
83ee9e09 | 2916 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2917 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2918 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2919 | code, (unsigned long)++PL_evalseq, | |
2920 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2921 | tmpbuf = SvPVX(sv); | |
fc009855 | 2922 | len = SvCUR(sv); |
83ee9e09 GS |
2923 | } |
2924 | else | |
d9fad198 JH |
2925 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2926 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2927 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2928 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2929 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2930 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2931 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2932 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2933 | (i.e. before run-time proper). To work around the coredump that | |
2934 | ensues, we always turn GvMULTI_on for any globals that were | |
2935 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2936 | safestr = savepvn(tmpbuf, len); |
2937 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2938 | SAVEHINTS(); |
d1ca3daa | 2939 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2940 | PL_opsave = op; |
d1ca3daa | 2941 | #else |
7766f137 | 2942 | SAVEVPTR(PL_op); |
d1ca3daa | 2943 | #endif |
c277df42 | 2944 | |
a3985cdc | 2945 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2946 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2947 | if (runtime) |
d819b83a | 2948 | runcv = find_runcv(NULL); |
a3985cdc | 2949 | |
533c011a | 2950 | PL_op = &dummy; |
13b51b79 | 2951 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2952 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2953 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2954 | PUSHEVAL(cx, 0); |
a3985cdc DM |
2955 | |
2956 | if (runtime) | |
410be5db | 2957 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2958 | else |
410be5db | 2959 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
13b51b79 | 2960 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2961 | POPEVAL(cx); |
c277df42 IZ |
2962 | |
2963 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2964 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2965 | lex_end(); |
f3548bdc | 2966 | /* XXX DAPM do this properly one year */ |
502c6561 | 2967 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 2968 | LEAVE_with_name("eval"); |
923e4eb5 | 2969 | if (IN_PERL_COMPILETIME) |
623e6609 | 2970 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2971 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2972 | op = PL_opsave; |
d1ca3daa | 2973 | #endif |
9d4ba2ae AL |
2974 | PERL_UNUSED_VAR(newsp); |
2975 | PERL_UNUSED_VAR(optype); | |
2976 | ||
410be5db | 2977 | return PL_eval_start; |
c277df42 IZ |
2978 | } |
2979 | ||
a3985cdc DM |
2980 | |
2981 | /* | |
2982 | =for apidoc find_runcv | |
2983 | ||
2984 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2985 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2986 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2987 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2988 | than in the scope of the debugger itself). |
a3985cdc DM |
2989 | |
2990 | =cut | |
2991 | */ | |
2992 | ||
2993 | CV* | |
d819b83a | 2994 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2995 | { |
97aff369 | 2996 | dVAR; |
a3985cdc | 2997 | PERL_SI *si; |
a3985cdc | 2998 | |
d819b83a DM |
2999 | if (db_seqp) |
3000 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3001 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3002 | I32 ix; |
a3985cdc | 3003 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3004 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3005 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3006 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3007 | /* skip DB:: code */ |
3008 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3009 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3010 | continue; | |
3011 | } | |
3012 | return cv; | |
3013 | } | |
a3985cdc DM |
3014 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3015 | return PL_compcv; | |
3016 | } | |
3017 | } | |
3018 | return PL_main_cv; | |
3019 | } | |
3020 | ||
3021 | ||
3022 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
3023 | * In the last case, startop is non-null, and contains the address of | |
3024 | * a pointer that should be set to the just-compiled code. | |
3025 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3026 | * Returns a bool indicating whether the compile was successful; if so, |
3027 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3028 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3029 | */ |
3030 | ||
410be5db | 3031 | STATIC bool |
a3985cdc | 3032 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3033 | { |
27da23d5 | 3034 | dVAR; dSP; |
46c461b5 | 3035 | OP * const saveop = PL_op; |
a0d0e21e | 3036 | |
6dc8a9e4 IZ |
3037 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
3038 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
3039 | : EVAL_INEVAL); | |
a0d0e21e | 3040 | |
1ce6579f | 3041 | PUSHMARK(SP); |
3042 | ||
3280af22 | 3043 | SAVESPTR(PL_compcv); |
ea726b52 | 3044 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3045 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3046 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3047 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3048 | ||
a3985cdc | 3049 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3050 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3051 | |
dd2155a4 | 3052 | /* set up a scratch pad */ |
a0d0e21e | 3053 | |
dd2155a4 | 3054 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3055 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3056 | |
07055b4c | 3057 | |
81d86705 NC |
3058 | if (!PL_madskills) |
3059 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3060 | |
a0d0e21e LW |
3061 | /* make sure we compile in the right package */ |
3062 | ||
ed094faf | 3063 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3064 | SAVESPTR(PL_curstash); |
ed094faf | 3065 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3066 | } |
3c10abe3 | 3067 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3068 | SAVESPTR(PL_beginav); |
3069 | PL_beginav = newAV(); | |
3070 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3071 | SAVESPTR(PL_unitcheckav); |
3072 | PL_unitcheckav = newAV(); | |
3073 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3074 | |
81d86705 | 3075 | #ifdef PERL_MAD |
9da243ce | 3076 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3077 | PL_madskills = 0; |
3078 | #endif | |
3079 | ||
a0d0e21e LW |
3080 | /* try to compile it */ |
3081 | ||
5f66b61c | 3082 | PL_eval_root = NULL; |
3280af22 | 3083 | PL_curcop = &PL_compiling; |
fc15ae8f | 3084 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3085 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3086 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3087 | else |
3088 | CLEAR_ERRSV(); | |
13765c85 | 3089 | if (yyparse() || PL_parser->error_count || !PL_eval_root) { |
0c58d367 | 3090 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 3091 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 3092 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 3093 | const char *msg; |
bfed75c6 | 3094 | |
533c011a | 3095 | PL_op = saveop; |
3280af22 NIS |
3096 | if (PL_eval_root) { |
3097 | op_free(PL_eval_root); | |
5f66b61c | 3098 | PL_eval_root = NULL; |
a0d0e21e | 3099 | } |
3280af22 | 3100 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 3101 | if (!startop) { |
3280af22 | 3102 | POPBLOCK(cx,PL_curpm); |
c277df42 | 3103 | POPEVAL(cx); |
c277df42 | 3104 | } |
a0d0e21e | 3105 | lex_end(); |
d343c3ef | 3106 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ |
9d4ba2ae AL |
3107 | |
3108 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 3109 | if (optype == OP_REQUIRE) { |
b464bac0 | 3110 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 3111 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 3112 | &PL_sv_undef, 0); |
58d3fd3b SH |
3113 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3114 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3115 | } |
3116 | else if (startop) { | |
3280af22 | 3117 | POPBLOCK(cx,PL_curpm); |
c277df42 | 3118 | POPEVAL(cx); |
5a844595 GS |
3119 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3120 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3121 | } |
9d7f88dd | 3122 | else { |
9d7f88dd | 3123 | if (!*msg) { |
6502358f | 3124 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3125 | } |
3126 | } | |
9d4ba2ae | 3127 | PERL_UNUSED_VAR(newsp); |
410be5db DM |
3128 | PUSHs(&PL_sv_undef); |
3129 | PUTBACK; | |
3130 | return FALSE; | |
a0d0e21e | 3131 | } |
57843af0 | 3132 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3133 | if (startop) { |
3280af22 | 3134 | *startop = PL_eval_root; |
c277df42 | 3135 | } else |
3280af22 | 3136 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3137 | |
3138 | /* Set the context for this new optree. | |
021f53de GG |
3139 | * Propagate the context from the eval(). */ |
3140 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3141 | scalarvoid(PL_eval_root); |
7df0357e | 3142 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3143 | list(PL_eval_root); |
a0d0e21e | 3144 | else |
3280af22 | 3145 | scalar(PL_eval_root); |
a0d0e21e LW |
3146 | |
3147 | DEBUG_x(dump_eval()); | |
3148 | ||
55497cff | 3149 | /* Register with debugger: */ |
6482a30d | 3150 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3151 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3152 | if (cv) { |
3153 | dSP; | |
924508f0 | 3154 | PUSHMARK(SP); |
ad64d0ec | 3155 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3156 | PUTBACK; |
ad64d0ec | 3157 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3158 | } |
3159 | } | |
3160 | ||
3c10abe3 AG |
3161 | if (PL_unitcheckav) |
3162 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3163 | ||
a0d0e21e LW |
3164 | /* compiled okay, so do it */ |
3165 | ||
3280af22 NIS |
3166 | CvDEPTH(PL_compcv) = 1; |
3167 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3168 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3169 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3170 | |
410be5db DM |
3171 | PUTBACK; |
3172 | return TRUE; | |
a0d0e21e LW |
3173 | } |
3174 | ||
a6c40364 | 3175 | STATIC PerlIO * |
0786552a | 3176 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3177 | { |
3178 | Stat_t st; | |
c445ea15 | 3179 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3180 | |
7918f24d NC |
3181 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3182 | ||
6b845e56 | 3183 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3184 | return NULL; |
ce8abf5f SP |
3185 | } |
3186 | ||
0786552a | 3187 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3188 | } |
3189 | ||
75c20bac | 3190 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3191 | STATIC PerlIO * |
0786552a | 3192 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3193 | { |
b295d113 TH |
3194 | PerlIO *fp; |
3195 | ||
7918f24d NC |
3196 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3197 | ||
ce9440c8 | 3198 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3199 | SV *const pmcsv = newSV(namelen + 2); |
3200 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3201 | Stat_t pmcstat; |
50b8ed39 NC |
3202 | |
3203 | memcpy(pmc, name, namelen); | |
3204 | pmc[namelen] = 'c'; | |
3205 | pmc[namelen + 1] = '\0'; | |
3206 | ||
a6c40364 | 3207 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3208 | fp = check_type_and_open(name); |
a6c40364 GS |
3209 | } |
3210 | else { | |
0786552a | 3211 | fp = check_type_and_open(pmc); |
b295d113 | 3212 | } |
a6c40364 GS |
3213 | SvREFCNT_dec(pmcsv); |
3214 | } | |
3215 | else { | |
0786552a | 3216 | fp = check_type_and_open(name); |
b295d113 | 3217 | } |
b295d113 | 3218 | return fp; |
75c20bac | 3219 | } |
7925835c | 3220 | #else |
75c20bac | 3221 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3222 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3223 | |
a0d0e21e LW |
3224 | PP(pp_require) |
3225 | { | |
27da23d5 | 3226 | dVAR; dSP; |
c09156bb | 3227 | register PERL_CONTEXT *cx; |
a0d0e21e | 3228 | SV *sv; |
5c144d81 | 3229 | const char *name; |
6132ea6c | 3230 | STRLEN len; |
4492be7a JM |
3231 | char * unixname; |
3232 | STRLEN unixlen; | |
62f5ad7a | 3233 | #ifdef VMS |
4492be7a | 3234 | int vms_unixname = 0; |
62f5ad7a | 3235 | #endif |
c445ea15 AL |
3236 | const char *tryname = NULL; |
3237 | SV *namesv = NULL; | |
f54cb97a | 3238 | const I32 gimme = GIMME_V; |
bbed91b5 | 3239 | int filter_has_file = 0; |
c445ea15 | 3240 | PerlIO *tryrsfp = NULL; |
34113e50 | 3241 | SV *filter_cache = NULL; |
c445ea15 AL |
3242 | SV *filter_state = NULL; |
3243 | SV *filter_sub = NULL; | |
3244 | SV *hook_sv = NULL; | |
6ec9efec JH |
3245 | SV *encoding; |
3246 | OP *op; | |
a0d0e21e LW |
3247 | |
3248 | sv = POPs; | |
d7aa5382 | 3249 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3250 | sv = new_version(sv); |
3251 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3252 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3253 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3254 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3255 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3256 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3257 | } |
3258 | else { | |
d1029faa JP |
3259 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3260 | I32 first = 0; | |
3261 | AV *lav; | |
3262 | SV * const req = SvRV(sv); | |
85fbaab2 | 3263 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3264 | |
3265 | /* get the left hand term */ | |
502c6561 | 3266 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3267 | |
3268 | first = SvIV(*av_fetch(lav,0,0)); | |
3269 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3270 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3271 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3272 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3273 | ) { | |
3274 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3275 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3276 | SVfARG(vnormal(PL_patchlevel))); | |
3277 | } | |
3278 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3279 | SV *hintsv; |
d1029faa JP |
3280 | I32 second = 0; |
3281 | ||
3282 | if (av_len(lav)>=1) | |
3283 | second = SvIV(*av_fetch(lav,1,0)); | |
3284 | ||
3285 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3286 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3287 | (int)first, (int)second); | |
d1029faa JP |
3288 | upg_version(hintsv, TRUE); |
3289 | ||
3290 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3291 | "--this is only %"SVf", stopped", | |
3292 | SVfARG(vnormal(req)), | |
af61dbfd | 3293 | SVfARG(vnormal(sv_2mortal(hintsv))), |
d1029faa JP |
3294 | SVfARG(vnormal(PL_patchlevel))); |
3295 | } | |
3296 | } | |
468aa647 | 3297 | } |
d7aa5382 | 3298 | |
fbc891ce RB |
3299 | /* We do this only with use, not require. */ |
3300 | if (PL_compcv && | |
fbc891ce RB |
3301 | /* If we request a version >= 5.9.5, load feature.pm with the |
3302 | * feature bundle that corresponds to the required version. */ | |
2e8342de | 3303 | vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { |
7dfde25d RGS |
3304 | SV *const importsv = vnormal(sv); |
3305 | *SvPVX_mutable(importsv) = ':'; | |
d343c3ef | 3306 | ENTER_with_name("load_feature"); |
7dfde25d | 3307 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); |
d343c3ef | 3308 | LEAVE_with_name("load_feature"); |
7dfde25d | 3309 | } |
53eb19dd S |
3310 | /* If a version >= 5.11.0 is requested, strictures are on by default! */ |
3311 | if (PL_compcv && | |
3312 | vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) { | |
5cc917d6 | 3313 | PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS); |
53eb19dd S |
3314 | } |
3315 | ||
7dfde25d | 3316 | RETPUSHYES; |
a0d0e21e | 3317 | } |
5c144d81 | 3318 | name = SvPV_const(sv, len); |
6132ea6c | 3319 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3320 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3321 | TAINT_PROPER("require"); |
4492be7a JM |
3322 | |
3323 | ||
3324 | #ifdef VMS | |
3325 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3326 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3327 | * can result in a module being pulled in more than once. | |
3328 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3329 | * name can be translated to UNIX. | |
3330 | */ | |
3331 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3332 | unixlen = strlen(unixname); | |
3333 | vms_unixname = 1; | |
3334 | } | |
3335 | else | |
3336 | #endif | |
3337 | { | |
3338 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3339 | * through. | |
3340 | */ | |
3341 | unixname = (char *) name; | |
3342 | unixlen = len; | |
3343 | } | |
44f8325f | 3344 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3345 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3346 | unixname, unixlen, 0); | |
44f8325f AL |
3347 | if ( svp ) { |
3348 | if (*svp != &PL_sv_undef) | |
3349 | RETPUSHYES; | |
3350 | else | |
087b5369 RD |
3351 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3352 | "Compilation failed in require", unixname); | |
44f8325f | 3353 | } |
4d8b06f1 | 3354 | } |
a0d0e21e LW |
3355 | |
3356 | /* prepare to compile file */ | |
3357 | ||
be4b629d | 3358 | if (path_is_absolute(name)) { |
46fc3d4c | 3359 | tryname = name; |
0786552a | 3360 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3361 | } |
be4b629d | 3362 | if (!tryrsfp) { |
44f8325f | 3363 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3364 | I32 i; |
748a9306 | 3365 | #ifdef VMS |
4492be7a | 3366 | if (vms_unixname) |
46fc3d4c | 3367 | #endif |
3368 | { | |
d0328fd7 | 3369 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3370 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3371 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3372 | |
ad64d0ec | 3373 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3374 | mg_get(dirsv); |
bbed91b5 KF |
3375 | if (SvROK(dirsv)) { |
3376 | int count; | |
a3b58a99 | 3377 | SV **svp; |
bbed91b5 KF |
3378 | SV *loader = dirsv; |
3379 | ||
e14e2dc8 NC |
3380 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3381 | && !sv_isobject(loader)) | |
3382 | { | |
502c6561 | 3383 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3384 | } |
3385 | ||
b900a521 | 3386 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3387 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3388 | tryname = SvPVX_const(namesv); |
c445ea15 | 3389 | tryrsfp = NULL; |
bbed91b5 | 3390 | |
d343c3ef | 3391 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3392 | SAVETMPS; |
3393 | EXTEND(SP, 2); | |
3394 | ||
3395 | PUSHMARK(SP); | |
3396 | PUSHs(dirsv); | |
3397 | PUSHs(sv); | |
3398 | PUTBACK; | |
e982885c NC |
3399 | if (sv_isobject(loader)) |
3400 | count = call_method("INC", G_ARRAY); | |
3401 | else | |
3402 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3403 | SPAGAIN; |
3404 | ||
a3b58a99 RGS |
3405 | /* Adjust file name if the hook has set an %INC entry */ |
3406 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3407 | if (svp) | |
d8723a6a | 3408 | tryname = SvPV_nolen_const(*svp); |
a3b58a99 | 3409 | |
bbed91b5 KF |
3410 | if (count > 0) { |
3411 | int i = 0; | |
3412 | SV *arg; | |
3413 | ||
3414 | SP -= count - 1; | |
3415 | arg = SP[i++]; | |
3416 | ||
34113e50 NC |
3417 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3418 | && !isGV_with_GP(SvRV(arg))) { | |
3419 | filter_cache = SvRV(arg); | |
74c765eb | 3420 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3421 | |
3422 | if (i < count) { | |
3423 | arg = SP[i++]; | |
3424 | } | |
3425 | } | |
3426 | ||
6e592b3a | 3427 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3428 | arg = SvRV(arg); |
3429 | } | |
3430 | ||
6e592b3a | 3431 | if (isGV_with_GP(arg)) { |
159b6efe | 3432 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3433 | |
3434 | ++filter_has_file; | |
3435 | ||
3436 | if (io) { | |
3437 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3438 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3439 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3440 | } |
0f7de14d NC |
3441 | IoIFP(io) = NULL; |
3442 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3443 | } |
3444 | ||
3445 | if (i < count) { | |
3446 | arg = SP[i++]; | |
3447 | } | |
3448 | } | |
3449 | ||
3450 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3451 | filter_sub = arg; | |
74c765eb | 3452 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3453 | |
3454 | if (i < count) { | |
3455 | filter_state = SP[i]; | |
b37c2d43 | 3456 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3457 | } |
34113e50 | 3458 | } |
bbed91b5 | 3459 | |
34113e50 NC |
3460 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3461 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3462 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3463 | } |
1d06aecd | 3464 | SP--; |
bbed91b5 KF |
3465 | } |
3466 | ||
3467 | PUTBACK; | |
3468 | FREETMPS; | |
d343c3ef | 3469 | LEAVE_with_name("call_INC"); |
bbed91b5 KF |
3470 | |
3471 | if (tryrsfp) { | |
89ccab8c | 3472 | hook_sv = dirsv; |
bbed91b5 KF |
3473 | break; |
3474 | } | |
3475 | ||
3476 | filter_has_file = 0; | |
34113e50 NC |
3477 | if (filter_cache) { |
3478 | SvREFCNT_dec(filter_cache); | |
3479 | filter_cache = NULL; | |
3480 | } | |
bbed91b5 KF |
3481 | if (filter_state) { |
3482 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3483 | filter_state = NULL; |
bbed91b5 KF |
3484 | } |
3485 | if (filter_sub) { | |
3486 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3487 | filter_sub = NULL; |
bbed91b5 KF |
3488 | } |
3489 | } | |
3490 | else { | |
be4b629d | 3491 | if (!path_is_absolute(name) |
be4b629d | 3492 | ) { |
b640a14a NC |
3493 | const char *dir; |
3494 | STRLEN dirlen; | |
3495 | ||
3496 | if (SvOK(dirsv)) { | |
3497 | dir = SvPV_const(dirsv, dirlen); | |
3498 | } else { | |
3499 | dir = ""; | |
3500 | dirlen = 0; | |
3501 | } | |
3502 | ||
e37778c2 | 3503 | #ifdef VMS |
bbed91b5 | 3504 | char *unixdir; |
c445ea15 | 3505 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3506 | continue; |
3507 | sv_setpv(namesv, unixdir); | |
3508 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3509 | #else |
3510 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3511 | if (PL_origfilename[0] && |
3512 | PL_origfilename[1] == ':' && | |
3513 | !(dir[0] && dir[1] == ':')) | |
3514 | Perl_sv_setpvf(aTHX_ namesv, | |
3515 | "%c:%s\\%s", | |
3516 | PL_origfilename[0], | |
3517 | dir, name); | |
3518 | else | |
3519 | Perl_sv_setpvf(aTHX_ namesv, | |
3520 | "%s\\%s", | |
3521 | dir, name); | |
e37778c2 | 3522 | # else |
b640a14a NC |
3523 | /* The equivalent of |
3524 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3525 | but without the need to parse the format string, or | |
3526 | call strlen on either pointer, and with the correct | |
3527 | allocation up front. */ | |
3528 | { | |
3529 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3530 | ||
3531 | memcpy(tmp, dir, dirlen); | |
3532 | tmp +=dirlen; | |
3533 | *tmp++ = '/'; | |
3534 | /* name came from an SV, so it will have a '\0' at the | |
3535 | end that we can copy as part of this memcpy(). */ | |
3536 | memcpy(tmp, name, len + 1); | |
3537 | ||
3538 | SvCUR_set(namesv, dirlen + len + 1); | |
3539 | ||
3540 | /* Don't even actually have to turn SvPOK_on() as we | |
3541 | access it directly with SvPVX() below. */ | |
3542 | } | |
27da23d5 | 3543 | # endif |
bf4acbe4 | 3544 | #endif |
bbed91b5 | 3545 | TAINT_PROPER("require"); |
349d4f2f | 3546 | tryname = SvPVX_const(namesv); |
0786552a | 3547 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 | 3548 | if (tryrsfp) { |
e63be746 RGS |
3549 | if (tryname[0] == '.' && tryname[1] == '/') { |
3550 | ++tryname; | |
3551 | while (*++tryname == '/'); | |
3552 | } | |
bbed91b5 KF |
3553 | break; |
3554 | } | |
ff806af2 DM |
3555 | else if (errno == EMFILE) |
3556 | /* no point in trying other paths if out of handles */ | |
3557 | break; | |
be4b629d | 3558 | } |
46fc3d4c | 3559 | } |
a0d0e21e LW |
3560 | } |
3561 | } | |
3562 | } | |
f4dd75d9 | 3563 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3564 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3565 | SvREFCNT_dec(namesv); |
a0d0e21e | 3566 | if (!tryrsfp) { |
533c011a | 3567 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3568 | const char *msgstr = name; |
e31de809 | 3569 | if(errno == EMFILE) { |
b9b739dc NC |
3570 | SV * const msg |
3571 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3572 | Strerror(errno))); | |
349d4f2f | 3573 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3574 | } else { |
3575 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3576 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3577 | I32 i; |
b8f04b1b NC |
3578 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3579 | "%s in @INC%s%s (@INC contains:", | |
3580 | msgstr, | |
3581 | (instr(msgstr, ".h ") | |
3582 | ? " (change .h to .ph maybe?)" : ""), | |
3583 | (instr(msgstr, ".ph ") | |
3584 | ? " (did you run h2ph?)" : "") | |
3585 | )); | |
3586 | ||
e31de809 | 3587 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3588 | sv_catpvs(msg, " "); |
b8f04b1b | 3589 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3590 | } |
396482e1 | 3591 | sv_catpvs(msg, ")"); |
e31de809 SP |
3592 | msgstr = SvPV_nolen_const(msg); |
3593 | } | |
2683423c | 3594 | } |
ea071790 | 3595 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3596 | } |
3597 | ||
3598 | RETPUSHUNDEF; | |
3599 | } | |
d8bfb8bd | 3600 | else |
93189314 | 3601 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3602 | |
3603 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3604 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3605 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3606 | if (!hook_sv) { |
4492be7a JM |
3607 | (void)hv_store(GvHVn(PL_incgv), |
3608 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3609 | } else { |
4492be7a | 3610 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3611 | if (!svp) |
4492be7a JM |
3612 | (void)hv_store(GvHVn(PL_incgv), |
3613 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3614 | } |
a0d0e21e | 3615 | |
d343c3ef | 3616 | ENTER_with_name("eval"); |
a0d0e21e | 3617 | SAVETMPS; |
5486870f | 3618 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3619 | |
b3ac6de7 | 3620 | SAVEHINTS(); |
3280af22 | 3621 | PL_hints = 0; |
f747ebd6 | 3622 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 3623 | |
68da3b2f | 3624 | SAVECOMPILEWARNINGS(); |
0453d815 | 3625 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3626 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3627 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3628 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3629 | else |
d3a7d8c7 | 3630 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3631 | |
34113e50 | 3632 | if (filter_sub || filter_cache) { |
4464f08e NC |
3633 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3634 | than hanging another SV from it. In turn, filter_add() optionally | |
3635 | takes the SV to use as the filter (or creates a new SV if passed | |
3636 | NULL), so simply pass in whatever value filter_cache has. */ | |
3637 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3638 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3639 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3640 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3641 | } |
3642 | ||
3643 | /* switch to eval mode */ | |
a0d0e21e | 3644 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3645 | PUSHEVAL(cx, name); |
f39bc417 | 3646 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3647 | |
57843af0 GS |
3648 | SAVECOPLINE(&PL_compiling); |
3649 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3650 | |
3651 | PUTBACK; | |
6ec9efec JH |
3652 | |
3653 | /* Store and reset encoding. */ | |
3654 | encoding = PL_encoding; | |
c445ea15 | 3655 | PL_encoding = NULL; |
6ec9efec | 3656 | |
410be5db DM |
3657 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3658 | op = DOCATCH(PL_eval_start); | |
3659 | else | |
3660 | op = PL_op->op_next; | |
bfed75c6 | 3661 | |
6ec9efec JH |
3662 | /* Restore encoding. */ |
3663 | PL_encoding = encoding; | |
3664 | ||
3665 | return op; | |
a0d0e21e LW |
3666 | } |
3667 | ||
996c9baa VP |
3668 | /* This is a op added to hold the hints hash for |
3669 | pp_entereval. The hash can be modified by the code | |
3670 | being eval'ed, so we return a copy instead. */ | |
3671 | ||
3672 | PP(pp_hintseval) | |
3673 | { | |
3674 | dVAR; | |
3675 | dSP; | |
ad64d0ec | 3676 | mXPUSHs(MUTABLE_SV(Perl_hv_copy_hints_hv(aTHX_ MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3677 | RETURN; |
3678 | } | |
3679 | ||
3680 | ||
a0d0e21e LW |
3681 | PP(pp_entereval) |
3682 | { | |
27da23d5 | 3683 | dVAR; dSP; |
c09156bb | 3684 | register PERL_CONTEXT *cx; |
0d863452 | 3685 | SV *sv; |
890ce7af | 3686 | const I32 gimme = GIMME_V; |
fd06b02c | 3687 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 GS |
3688 | char tbuf[TYPE_DIGITS(long) + 12]; |
3689 | char *tmpbuf = tbuf; | |
a0d0e21e | 3690 | STRLEN len; |
a3985cdc | 3691 | CV* runcv; |
d819b83a | 3692 | U32 seq; |
c445ea15 | 3693 | HV *saved_hh = NULL; |
e389bba9 | 3694 | |
0d863452 | 3695 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3696 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3697 | } |
3698 | sv = POPs; | |
a0d0e21e | 3699 | |
af2d3def | 3700 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3701 | TAINT_PROPER("eval"); |
a0d0e21e | 3702 | |
d343c3ef | 3703 | ENTER_with_name("eval"); |
5486870f | 3704 | lex_start(sv, NULL, FALSE); |
748a9306 | 3705 | SAVETMPS; |
ac27b0f5 | 3706 | |
a0d0e21e LW |
3707 | /* switch to eval mode */ |
3708 | ||
83ee9e09 | 3709 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3710 | SV * const temp_sv = sv_newmortal(); |
3711 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3712 | (unsigned long)++PL_evalseq, |
3713 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3714 | tmpbuf = SvPVX(temp_sv); |
3715 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3716 | } |
3717 | else | |
d9fad198 | 3718 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3719 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3720 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3721 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3722 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3723 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3724 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3725 | (i.e. before run-time proper). To work around the coredump that | |
3726 | ensues, we always turn GvMULTI_on for any globals that were | |
3727 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3728 | SAVEHINTS(); |
533c011a | 3729 | PL_hints = PL_op->op_targ; |
cda55376 AV |
3730 | if (saved_hh) { |
3731 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3732 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 3733 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 3734 | } |
68da3b2f | 3735 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3736 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3737 | if (PL_compiling.cop_hints_hash) { |
3738 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3739 | } |
c28fe1ec NC |
3740 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; |
3741 | if (PL_compiling.cop_hints_hash) { | |
cbb1fbea | 3742 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3743 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3744 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3745 | } |
d819b83a DM |
3746 | /* special case: an eval '' executed within the DB package gets lexically |
3747 | * placed in the first non-DB CV rather than the current CV - this | |
3748 | * allows the debugger to execute code, find lexicals etc, in the | |
3749 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3750 | * to do the dirty work for us */ | |
3751 | runcv = find_runcv(&seq); | |
a0d0e21e | 3752 | |
6b35e009 | 3753 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 3754 | PUSHEVAL(cx, 0); |
f39bc417 | 3755 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3756 | |
3757 | /* prepare to compile string */ | |
3758 | ||
a44e3ce2 | 3759 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 3760 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3761 | PUTBACK; |
f9bddea7 NC |
3762 | |
3763 | if (doeval(gimme, NULL, runcv, seq)) { | |
3764 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
3765 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3766 | : PERLDB_SAVESRC_NOSUBS) { | |
3767 | /* Retain the filegv we created. */ | |
3768 | } else { | |
3769 | char *const safestr = savepvn(tmpbuf, len); | |
3770 | SAVEDELETE(PL_defstash, safestr, len); | |
3771 | } | |
3772 | return DOCATCH(PL_eval_start); | |
3773 | } else { | |
3774 | /* We have already left the scope set up earler thanks to the LEAVE | |
3775 | in doeval(). */ | |
eb044b10 NC |
3776 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
3777 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3778 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 NC |
3779 | /* Retain the filegv we created. */ |
3780 | } else { | |
3781 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); | |
3782 | } | |
3783 | return PL_op->op_next; | |
3784 | } | |
a0d0e21e LW |
3785 | } |
3786 | ||
3787 | PP(pp_leaveeval) | |
3788 | { | |
27da23d5 | 3789 | dVAR; dSP; |
a0d0e21e LW |
3790 | register SV **mark; |
3791 | SV **newsp; | |
3792 | PMOP *newpm; | |
3793 | I32 gimme; | |
c09156bb | 3794 | register PERL_CONTEXT *cx; |
a0d0e21e | 3795 | OP *retop; |
06b5626a | 3796 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3797 | I32 optype; |
3798 | ||
3799 | POPBLOCK(cx,newpm); | |
3800 | POPEVAL(cx); | |
f39bc417 | 3801 | retop = cx->blk_eval.retop; |
a0d0e21e | 3802 | |
a1f49e72 | 3803 | TAINT_NOT; |
54310121 | 3804 | if (gimme == G_VOID) |
3805 | MARK = newsp; | |
3806 | else if (gimme == G_SCALAR) { | |
3807 | MARK = newsp + 1; | |
3808 | if (MARK <= SP) { | |
3809 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3810 | *MARK = TOPs; | |
3811 | else | |
3812 | *MARK = sv_mortalcopy(TOPs); | |
3813 | } | |
a0d0e21e | 3814 | else { |
54310121 | 3815 | MEXTEND(mark,0); |
3280af22 | 3816 | *MARK = &PL_sv_undef; |
a0d0e21e | 3817 | } |
a7ec2b44 | 3818 | SP = MARK; |
a0d0e21e LW |
3819 | } |
3820 | else { | |
a1f49e72 CS |
3821 | /* in case LEAVE wipes old return values */ |
3822 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3823 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3824 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3825 | TAINT_NOT; /* Each item is independent */ |
3826 | } | |
3827 | } | |
a0d0e21e | 3828 | } |
3280af22 | 3829 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3830 | |
4fdae800 | 3831 | #ifdef DEBUGGING |
3280af22 | 3832 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3833 | #endif |
3280af22 | 3834 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3835 | lex_end(); |
4fdae800 | 3836 | |
1ce6579f | 3837 | if (optype == OP_REQUIRE && |
924508f0 | 3838 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3839 | { |
1ce6579f | 3840 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3841 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3842 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 3843 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
f46d017c GS |
3844 | /* die_where() did LEAVE, or we won't be here */ |
3845 | } | |
3846 | else { | |
d343c3ef | 3847 | LEAVE_with_name("eval"); |
8433848b | 3848 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 3849 | CLEAR_ERRSV(); |
8433848b | 3850 | } |
a0d0e21e | 3851 | } |
a0d0e21e LW |
3852 | |
3853 | RETURNOP(retop); | |
3854 | } | |
3855 | ||
edb2152a NC |
3856 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3857 | close to the related Perl_create_eval_scope. */ | |
3858 | void | |
3859 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3860 | { |
edb2152a NC |
3861 | SV **newsp; |
3862 | PMOP *newpm; | |
3863 | I32 gimme; | |
c09156bb | 3864 | register PERL_CONTEXT *cx; |
edb2152a NC |
3865 | I32 optype; |
3866 | ||
3867 | POPBLOCK(cx,newpm); | |
3868 | POPEVAL(cx); | |
3869 | PL_curpm = newpm; | |
d343c3ef | 3870 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
3871 | PERL_UNUSED_VAR(newsp); |
3872 | PERL_UNUSED_VAR(gimme); | |
3873 | PERL_UNUSED_VAR(optype); | |
3874 | } | |
a0d0e21e | 3875 | |
edb2152a NC |
3876 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3877 | also needed by Perl_fold_constants. */ | |
3878 | PERL_CONTEXT * | |
3879 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3880 | { | |
3881 | PERL_CONTEXT *cx; | |
3882 | const I32 gimme = GIMME_V; | |
3883 | ||
d343c3ef | 3884 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
3885 | SAVETMPS; |
3886 | ||
edb2152a | 3887 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 3888 | PUSHEVAL(cx, 0); |
a0d0e21e | 3889 | |
faef0170 | 3890 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3891 | if (flags & G_KEEPERR) |
3892 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
3893 | else |
3894 | CLEAR_ERRSV(); | |
edb2152a NC |
3895 | if (flags & G_FAKINGEVAL) { |
3896 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3897 | } | |
3898 | return cx; | |
3899 | } | |
3900 | ||
3901 | PP(pp_entertry) | |
3902 | { | |
3903 | dVAR; | |
df528165 | 3904 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3905 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3906 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3907 | } |
3908 | ||
3909 | PP(pp_leavetry) | |
3910 | { | |
27da23d5 | 3911 | dVAR; dSP; |
a0d0e21e LW |
3912 | SV **newsp; |
3913 | PMOP *newpm; | |
3914 | I32 gimme; | |
c09156bb | 3915 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3916 | I32 optype; |
3917 | ||
3918 | POPBLOCK(cx,newpm); | |
3919 | POPEVAL(cx); | |
9d4ba2ae | 3920 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3921 | |
a1f49e72 | 3922 | TAINT_NOT; |
54310121 | 3923 | if (gimme == G_VOID) |
3924 | SP = newsp; | |
3925 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3926 | register SV **mark; |
54310121 | 3927 | MARK = newsp + 1; |
3928 | if (MARK <= SP) { | |
3929 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3930 | *MARK = TOPs; | |
3931 | else | |
3932 | *MARK = sv_mortalcopy(TOPs); | |
3933 | } | |
a0d0e21e | 3934 | else { |
54310121 | 3935 | MEXTEND(mark,0); |
3280af22 | 3936 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3937 | } |
3938 | SP = MARK; | |
3939 | } | |
3940 | else { | |
a1f49e72 | 3941 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3942 | register SV **mark; |
a1f49e72 CS |
3943 | for (mark = newsp + 1; mark <= SP; mark++) { |
3944 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3945 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3946 | TAINT_NOT; /* Each item is independent */ |
3947 | } | |
3948 | } | |
a0d0e21e | 3949 | } |
3280af22 | 3950 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3951 | |
d343c3ef | 3952 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 3953 | CLEAR_ERRSV(); |
745cf2ff | 3954 | RETURN; |
a0d0e21e LW |
3955 | } |
3956 | ||
0d863452 RH |
3957 | PP(pp_entergiven) |
3958 | { | |
3959 | dVAR; dSP; | |
3960 | register PERL_CONTEXT *cx; | |
3961 | const I32 gimme = GIMME_V; | |
3962 | ||
d343c3ef | 3963 | ENTER_with_name("given"); |
0d863452 RH |
3964 | SAVETMPS; |
3965 | ||
bb74b0ee | 3966 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
3967 | |
3968 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3969 | PUSHGIVEN(cx); | |
3970 | ||
3971 | RETURN; | |
3972 | } | |
3973 | ||
3974 | PP(pp_leavegiven) | |
3975 | { | |
3976 | dVAR; dSP; | |
3977 | register PERL_CONTEXT *cx; | |
3978 | I32 gimme; | |
3979 | SV **newsp; | |
3980 | PMOP *newpm; | |
96a5add6 | 3981 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3982 | |
3983 | POPBLOCK(cx,newpm); | |
3984 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3985 | |
3986 | SP = newsp; | |
3987 | PUTBACK; | |
3988 | ||
3989 | PL_curpm = newpm; /* pop $1 et al */ | |
3990 | ||
d343c3ef | 3991 | LEAVE_with_name("given"); |
0d863452 RH |
3992 | |
3993 | return NORMAL; | |
3994 | } | |
3995 | ||
3996 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 3997 | STATIC PMOP * |
84679df5 | 3998 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 3999 | { |
97aff369 | 4000 | dVAR; |
0d863452 | 4001 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4002 | |
4003 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4004 | ||
d6106309 | 4005 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4006 | |
0d863452 | 4007 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4008 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4009 | SAVEOP(); |
4010 | return matcher; | |
4011 | } | |
4012 | ||
4136a0f7 | 4013 | STATIC bool |
0d863452 RH |
4014 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4015 | { | |
97aff369 | 4016 | dVAR; |
0d863452 | 4017 | dSP; |
7918f24d NC |
4018 | |
4019 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4020 | |
4021 | PL_op = (OP *) matcher; | |
4022 | XPUSHs(sv); | |
4023 | PUTBACK; | |
4024 | (void) pp_match(); | |
4025 | SPAGAIN; | |
4026 | return (SvTRUEx(POPs)); | |
4027 | } | |
4028 | ||
4136a0f7 | 4029 | STATIC void |
0d863452 RH |
4030 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4031 | { | |
97aff369 | 4032 | dVAR; |
7918f24d NC |
4033 | |
4034 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4035 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4036 | |
0d863452 | 4037 | FREETMPS; |
d343c3ef | 4038 | LEAVE_with_name("matcher"); |
0d863452 RH |
4039 | } |
4040 | ||
4041 | /* Do a smart match */ | |
4042 | PP(pp_smartmatch) | |
4043 | { | |
d7c0d282 | 4044 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4045 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4046 | } |
4047 | ||
4b021f5f RGS |
4048 | /* This version of do_smartmatch() implements the |
4049 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4050 | */ |
4136a0f7 | 4051 | STATIC OP * |
0d863452 RH |
4052 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4053 | { | |
97aff369 | 4054 | dVAR; |
0d863452 RH |
4055 | dSP; |
4056 | ||
41e726ac | 4057 | bool object_on_left = FALSE; |
0d863452 RH |
4058 | SV *e = TOPs; /* e is for 'expression' */ |
4059 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4060 | |
2c9d2554 | 4061 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4062 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4063 | SV * tmpsv; |
4064 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4065 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4066 | ||
4067 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4068 | if (tmpsv) { |
4069 | SPAGAIN; | |
4070 | (void)POPs; | |
4071 | SETs(tmpsv); | |
4072 | RETURN; | |
4073 | } | |
d7c0d282 | 4074 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4075 | } |
62ec5f58 | 4076 | |
0d863452 RH |
4077 | SP -= 2; /* Pop the values */ |
4078 | ||
4079 | /* Take care only to invoke mg_get() once for each argument. | |
4080 | * Currently we do this by copying the SV if it's magical. */ | |
4081 | if (d) { | |
4082 | if (SvGMAGICAL(d)) | |
4083 | d = sv_mortalcopy(d); | |
4084 | } | |
4085 | else | |
4086 | d = &PL_sv_undef; | |
4087 | ||
4088 | assert(e); | |
4089 | if (SvGMAGICAL(e)) | |
4090 | e = sv_mortalcopy(e); | |
4091 | ||
b0138e99 | 4092 | /* ~~ undef */ |
62ec5f58 | 4093 | if (!SvOK(e)) { |
d7c0d282 | 4094 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4095 | if (SvOK(d)) |
33570f8b RGS |
4096 | RETPUSHNO; |
4097 | else | |
62ec5f58 | 4098 | RETPUSHYES; |
33570f8b | 4099 | } |
e67b97bd | 4100 | |
d7c0d282 DM |
4101 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4102 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4103 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4104 | } |
41e726ac RGS |
4105 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4106 | object_on_left = TRUE; | |
62ec5f58 | 4107 | |
b0138e99 | 4108 | /* ~~ sub */ |
a4a197da | 4109 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4110 | I32 c; |
41e726ac RGS |
4111 | if (object_on_left) { |
4112 | goto sm_any_sub; /* Treat objects like scalars */ | |
4113 | } | |
4114 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4115 | /* Test sub truth for each key */ |
4116 | HE *he; | |
4117 | bool andedresults = TRUE; | |
4118 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4119 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4120 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4121 | if (numkeys == 0) |
07edf497 | 4122 | RETPUSHYES; |
a4a197da | 4123 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4124 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4125 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4126 | SAVETMPS; |
4127 | PUSHMARK(SP); | |
4128 | PUSHs(hv_iterkeysv(he)); | |
4129 | PUTBACK; | |
4130 | c = call_sv(e, G_SCALAR); | |
4131 | SPAGAIN; | |
4132 | if (c == 0) | |
4133 | andedresults = FALSE; | |
4134 | else | |
4135 | andedresults = SvTRUEx(POPs) && andedresults; | |
4136 | FREETMPS; | |
d343c3ef | 4137 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4138 | } |
4139 | if (andedresults) | |
4140 | RETPUSHYES; | |
4141 | else | |
4142 | RETPUSHNO; | |
4143 | } | |
4144 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4145 | /* Test sub truth for each element */ | |
4146 | I32 i; | |
4147 | bool andedresults = TRUE; | |
4148 | AV *av = (AV*) SvRV(d); | |
4149 | const I32 len = av_len(av); | |
d7c0d282 | 4150 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4151 | if (len == -1) |
07edf497 | 4152 | RETPUSHYES; |
a4a197da RGS |
4153 | for (i = 0; i <= len; ++i) { |
4154 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4155 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4156 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4157 | SAVETMPS; |
4158 | PUSHMARK(SP); | |
4159 | if (svp) | |
4160 | PUSHs(*svp); | |
4161 | PUTBACK; | |
4162 | c = call_sv(e, G_SCALAR); | |
4163 | SPAGAIN; | |
4164 | if (c == 0) | |
4165 | andedresults = FALSE; | |
4166 | else | |
4167 | andedresults = SvTRUEx(POPs) && andedresults; | |
4168 | FREETMPS; | |
d343c3ef | 4169 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4170 | } |
4171 | if (andedresults) | |
4172 | RETPUSHYES; | |
4173 | else | |
4174 | RETPUSHNO; | |
4175 | } | |
4176 | else { | |
41e726ac | 4177 | sm_any_sub: |
d7c0d282 | 4178 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4179 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4180 | SAVETMPS; |
4181 | PUSHMARK(SP); | |
4182 | PUSHs(d); | |
4183 | PUTBACK; | |
4184 | c = call_sv(e, G_SCALAR); | |
4185 | SPAGAIN; | |
4186 | if (c == 0) | |
4187 | PUSHs(&PL_sv_no); | |
4188 | else if (SvTEMP(TOPs)) | |
4189 | SvREFCNT_inc_void(TOPs); | |
4190 | FREETMPS; | |
d343c3ef | 4191 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4192 | RETURN; |
4193 | } | |
0d863452 | 4194 | } |
b0138e99 | 4195 | /* ~~ %hash */ |
61a621c6 | 4196 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4197 | if (object_on_left) { |
4198 | goto sm_any_hash; /* Treat objects like scalars */ | |
4199 | } | |
4200 | else if (!SvOK(d)) { | |
d7c0d282 | 4201 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4202 | RETPUSHNO; |
4203 | } | |
4204 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4205 | /* Check that the key-sets are identical */ |
4206 | HE *he; | |
61a621c6 | 4207 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4208 | bool tied = FALSE; |
4209 | bool other_tied = FALSE; | |
4210 | U32 this_key_count = 0, | |
4211 | other_key_count = 0; | |
33ed63a2 | 4212 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4213 | |
4214 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4215 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4216 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4217 | tied = TRUE; |
4218 | } | |
ad64d0ec | 4219 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4220 | HV * const temp = other_hv; |
33ed63a2 RGS |
4221 | other_hv = hv; |
4222 | hv = temp; | |
0d863452 RH |
4223 | tied = TRUE; |
4224 | } | |
ad64d0ec | 4225 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4226 | other_tied = TRUE; |
4227 | ||
33ed63a2 | 4228 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4229 | RETPUSHNO; |
4230 | ||
4231 | /* The hashes have the same number of keys, so it suffices | |
4232 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4233 | (void) hv_iterinit(hv); |
4234 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4235 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4236 | |
4237 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4238 | ++ this_key_count; |
4239 | ||
b15feb55 | 4240 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4241 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4242 | RETPUSHNO; |
4243 | } | |
4244 | } | |
4245 | ||
4246 | if (other_tied) { | |
4247 | (void) hv_iterinit(other_hv); | |
4248 | while ( hv_iternext(other_hv) ) | |
4249 | ++other_key_count; | |
4250 | } | |
4251 | else | |
4252 | other_key_count = HvUSEDKEYS(other_hv); | |
4253 | ||
4254 | if (this_key_count != other_key_count) | |
4255 | RETPUSHNO; | |
4256 | else | |
4257 | RETPUSHYES; | |
4258 | } | |
61a621c6 RGS |
4259 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4260 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4261 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4262 | I32 i; |
33ed63a2 | 4263 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4264 | |
d7c0d282 | 4265 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4266 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4267 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4268 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4269 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4270 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4271 | RETPUSHYES; |
4272 | } | |
0d863452 | 4273 | } |
71b0fb34 | 4274 | RETPUSHNO; |
0d863452 | 4275 | } |
a566f585 | 4276 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4277 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4278 | sm_regex_hash: |
4279 | { | |
4280 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4281 | HE *he; | |
4282 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4283 | ||
4284 | (void) hv_iterinit(hv); | |
4285 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4286 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4287 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4288 | (void) hv_iterinit(hv); | |
4289 | destroy_matcher(matcher); | |
4290 | RETPUSHYES; | |
4291 | } | |
0d863452 | 4292 | } |
ea0c2dbd RGS |
4293 | destroy_matcher(matcher); |
4294 | RETPUSHNO; | |
0d863452 | 4295 | } |
0d863452 RH |
4296 | } |
4297 | else { | |
41e726ac | 4298 | sm_any_hash: |
d7c0d282 | 4299 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4300 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4301 | RETPUSHYES; |
4302 | else | |
4303 | RETPUSHNO; | |
4304 | } | |
4305 | } | |
b0138e99 RGS |
4306 | /* ~~ @array */ |
4307 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4308 | if (object_on_left) { |
4309 | goto sm_any_array; /* Treat objects like scalars */ | |
4310 | } | |
4311 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4312 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4313 | const I32 other_len = av_len(other_av) + 1; | |
4314 | I32 i; | |
4315 | ||
d7c0d282 | 4316 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4317 | for (i = 0; i < other_len; ++i) { |
4318 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4319 | |
4320 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4321 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4322 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4323 | RETPUSHYES; |
4324 | } | |
4325 | } | |
4326 | RETPUSHNO; | |
4327 | } | |
4328 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4329 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4330 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4331 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4332 | RETPUSHNO; |
4333 | else { | |
4334 | I32 i; | |
c445ea15 | 4335 | const I32 other_len = av_len(other_av); |
0d863452 | 4336 | |
a0714e2c | 4337 | if (NULL == seen_this) { |
0d863452 | 4338 | seen_this = newHV(); |
ad64d0ec | 4339 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4340 | } |
a0714e2c | 4341 | if (NULL == seen_other) { |
6bc991bf | 4342 | seen_other = newHV(); |
ad64d0ec | 4343 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4344 | } |
4345 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4346 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4347 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4348 | ||
0d863452 | 4349 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4350 | if ((this_elem && SvOK(*this_elem)) |
4351 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4352 | RETPUSHNO; |
4353 | } | |
365c4e3d RGS |
4354 | else if (hv_exists_ent(seen_this, |
4355 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4356 | hv_exists_ent(seen_other, | |
4357 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4358 | { |
4359 | if (*this_elem != *other_elem) | |
4360 | RETPUSHNO; | |
4361 | } | |
4362 | else { | |
04fe65b0 RGS |
4363 | (void)hv_store_ent(seen_this, |
4364 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4365 | &PL_sv_undef, 0); | |
4366 | (void)hv_store_ent(seen_other, | |
4367 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4368 | &PL_sv_undef, 0); | |
0d863452 | 4369 | PUSHs(*other_elem); |
a566f585 | 4370 | PUSHs(*this_elem); |
0d863452 RH |
4371 | |
4372 | PUTBACK; | |
d7c0d282 | 4373 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4374 | (void) do_smartmatch(seen_this, seen_other); |
4375 | SPAGAIN; | |
d7c0d282 | 4376 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4377 | |
4378 | if (!SvTRUEx(POPs)) | |
4379 | RETPUSHNO; | |
4380 | } | |
4381 | } | |
4382 | RETPUSHYES; | |
4383 | } | |
4384 | } | |
a566f585 | 4385 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4386 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4387 | sm_regex_array: |
4388 | { | |
4389 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4390 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4391 | I32 i; | |
0d863452 | 4392 | |
ea0c2dbd RGS |
4393 | for(i = 0; i <= this_len; ++i) { |
4394 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4395 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4396 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4397 | destroy_matcher(matcher); | |
4398 | RETPUSHYES; | |
4399 | } | |
0d863452 | 4400 | } |
ea0c2dbd RGS |
4401 | destroy_matcher(matcher); |
4402 | RETPUSHNO; | |
0d863452 | 4403 | } |
0d863452 | 4404 | } |
015eb7b9 RGS |
4405 | else if (!SvOK(d)) { |
4406 | /* undef ~~ array */ | |
4407 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4408 | I32 i; |
4409 | ||
d7c0d282 | 4410 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4411 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4412 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4413 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4414 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4415 | RETPUSHYES; |
4416 | } | |
4417 | RETPUSHNO; | |
4418 | } | |
015eb7b9 | 4419 | else { |
41e726ac RGS |
4420 | sm_any_array: |
4421 | { | |
4422 | I32 i; | |
4423 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4424 | |
d7c0d282 | 4425 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4426 | for (i = 0; i <= this_len; ++i) { |
4427 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4428 | if (!svp) | |
4429 | continue; | |
015eb7b9 | 4430 | |
41e726ac RGS |
4431 | PUSHs(d); |
4432 | PUSHs(*svp); | |
4433 | PUTBACK; | |
4434 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4435 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4436 | (void) do_smartmatch(NULL, NULL); |
4437 | SPAGAIN; | |
d7c0d282 | 4438 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4439 | if (SvTRUEx(POPs)) |
4440 | RETPUSHYES; | |
4441 | } | |
4442 | RETPUSHNO; | |
0d863452 | 4443 | } |
0d863452 RH |
4444 | } |
4445 | } | |
b0138e99 | 4446 | /* ~~ qr// */ |
a566f585 | 4447 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4448 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4449 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4450 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4451 | goto sm_regex_hash; |
4452 | } | |
4453 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4454 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4455 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4456 | goto sm_regex_array; |
4457 | } | |
4458 | else { | |
4459 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4460 | |
d7c0d282 | 4461 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4462 | PUTBACK; |
4463 | PUSHs(matcher_matches_sv(matcher, d) | |
4464 | ? &PL_sv_yes | |
4465 | : &PL_sv_no); | |
4466 | destroy_matcher(matcher); | |
4467 | RETURN; | |
4468 | } | |
0d863452 | 4469 | } |
b0138e99 | 4470 | /* ~~ scalar */ |
2c9d2554 RGS |
4471 | /* See if there is overload magic on left */ |
4472 | else if (object_on_left && SvAMAGIC(d)) { | |
4473 | SV *tmpsv; | |
d7c0d282 DM |
4474 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4475 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4476 | PUSHs(d); PUSHs(e); |
4477 | PUTBACK; | |
4478 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4479 | if (tmpsv) { | |
4480 | SPAGAIN; | |
4481 | (void)POPs; | |
4482 | SETs(tmpsv); | |
4483 | RETURN; | |
4484 | } | |
4485 | SP -= 2; | |
d7c0d282 | 4486 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4487 | goto sm_any_scalar; |
4488 | } | |
fb51372e RGS |
4489 | else if (!SvOK(d)) { |
4490 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4491 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4492 | RETPUSHNO; |
4493 | } | |
2c9d2554 RGS |
4494 | else |
4495 | sm_any_scalar: | |
4496 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4497 | DEBUG_M(if (SvNIOK(e)) |
4498 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4499 | else | |
4500 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4501 | ); | |
33ed63a2 | 4502 | /* numeric comparison */ |
0d863452 RH |
4503 | PUSHs(d); PUSHs(e); |
4504 | PUTBACK; | |
a98fe34d | 4505 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4506 | (void) pp_i_eq(); |
4507 | else | |
4508 | (void) pp_eq(); | |
4509 | SPAGAIN; | |
4510 | if (SvTRUEx(POPs)) | |
4511 | RETPUSHYES; | |
4512 | else | |
4513 | RETPUSHNO; | |
4514 | } | |
4515 | ||
4516 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4517 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4518 | PUSHs(d); PUSHs(e); |
4519 | PUTBACK; | |
4520 | return pp_seq(); | |
4521 | } | |
4522 | ||
4523 | PP(pp_enterwhen) | |
4524 | { | |
4525 | dVAR; dSP; | |
4526 | register PERL_CONTEXT *cx; | |
4527 | const I32 gimme = GIMME_V; | |
4528 | ||
4529 | /* This is essentially an optimization: if the match | |
4530 | fails, we don't want to push a context and then | |
4531 | pop it again right away, so we skip straight | |
4532 | to the op that follows the leavewhen. | |
4533 | */ | |
4534 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4535 | return cLOGOP->op_other->op_next; | |
4536 | ||
d343c3ef | 4537 | ENTER_with_name("eval"); |
0d863452 RH |
4538 | SAVETMPS; |
4539 | ||
4540 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4541 | PUSHWHEN(cx); | |
4542 | ||
4543 | RETURN; | |
4544 | } | |
4545 | ||
4546 | PP(pp_leavewhen) | |
4547 | { | |
4548 | dVAR; dSP; | |
4549 | register PERL_CONTEXT *cx; | |
4550 | I32 gimme; | |
4551 | SV **newsp; | |
4552 | PMOP *newpm; | |
4553 | ||
4554 | POPBLOCK(cx,newpm); | |
4555 | assert(CxTYPE(cx) == CXt_WHEN); | |
4556 | ||
4557 | SP = newsp; | |
4558 | PUTBACK; | |
4559 | ||
4560 | PL_curpm = newpm; /* pop $1 et al */ | |
4561 | ||
d343c3ef | 4562 | LEAVE_with_name("eval"); |
0d863452 RH |
4563 | return NORMAL; |
4564 | } | |
4565 | ||
4566 | PP(pp_continue) | |
4567 | { | |
4568 | dVAR; | |
4569 | I32 cxix; | |
4570 | register PERL_CONTEXT *cx; | |
4571 | I32 inner; | |
4572 | ||
4573 | cxix = dopoptowhen(cxstack_ix); | |
4574 | if (cxix < 0) | |
4575 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4576 | if (cxix < cxstack_ix) | |
4577 | dounwind(cxix); | |
4578 | ||
4579 | /* clear off anything above the scope we're re-entering */ | |
4580 | inner = PL_scopestack_ix; | |
4581 | TOPBLOCK(cx); | |
4582 | if (PL_scopestack_ix < inner) | |
4583 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4584 | PL_curcop = cx->blk_oldcop; | |
4585 | return cx->blk_givwhen.leave_op; | |
4586 | } | |
4587 | ||
4588 | PP(pp_break) | |
4589 | { | |
4590 | dVAR; | |
4591 | I32 cxix; | |
4592 | register PERL_CONTEXT *cx; | |
4593 | I32 inner; | |
4594 | ||
4595 | cxix = dopoptogiven(cxstack_ix); | |
4596 | if (cxix < 0) { | |
4597 | if (PL_op->op_flags & OPf_SPECIAL) | |
4598 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4599 | else | |
4600 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4601 | } | |
4602 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4603 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4604 | ||
4605 | if (cxix < cxstack_ix) | |
4606 | dounwind(cxix); | |
4607 | ||
4608 | /* clear off anything above the scope we're re-entering */ | |
4609 | inner = PL_scopestack_ix; | |
4610 | TOPBLOCK(cx); | |
4611 | if (PL_scopestack_ix < inner) | |
4612 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4613 | PL_curcop = cx->blk_oldcop; | |
4614 | ||
4615 | if (CxFOREACH(cx)) | |
022eaa24 | 4616 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 RH |
4617 | else |
4618 | return cx->blk_givwhen.leave_op; | |
4619 | } | |
4620 | ||
a1b95068 | 4621 | STATIC OP * |
cea2e8a9 | 4622 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4623 | { |
4624 | STRLEN len; | |
4625 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4626 | register char * const send = s + len; |
4627 | register char *base = NULL; | |
a0d0e21e | 4628 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4629 | bool noblank = FALSE; |
4630 | bool repeat = FALSE; | |
a0d0e21e | 4631 | bool postspace = FALSE; |
dea28490 JJ |
4632 | U32 *fops; |
4633 | register U32 *fpc; | |
cbbf8932 | 4634 | U32 *linepc = NULL; |
a0d0e21e LW |
4635 | register I32 arg; |
4636 | bool ischop; | |
a1b95068 WL |
4637 | bool unchopnum = FALSE; |
4638 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4639 | |
7918f24d NC |
4640 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4641 | ||
55497cff | 4642 | if (len == 0) |
cea2e8a9 | 4643 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4644 | |
815f25c6 DM |
4645 | /* estimate the buffer size needed */ |
4646 | for (base = s; s <= send; s++) { | |
a1b95068 | 4647 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4648 | maxops += 10; |
4649 | } | |
4650 | s = base; | |
c445ea15 | 4651 | base = NULL; |
815f25c6 | 4652 | |
a02a5408 | 4653 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4654 | fpc = fops; |
4655 | ||
4656 | if (s < send) { | |
4657 | linepc = fpc; | |
4658 | *fpc++ = FF_LINEMARK; | |
4659 | noblank = repeat = FALSE; | |
4660 | base = s; | |
4661 | } | |
4662 | ||
4663 | while (s <= send) { | |
4664 | switch (*s++) { | |
4665 | default: | |
4666 | skipspaces = 0; | |
4667 | continue; | |
4668 | ||
4669 | case '~': | |
4670 | if (*s == '~') { | |
4671 | repeat = TRUE; | |
4672 | *s = ' '; | |
4673 | } | |
4674 | noblank = TRUE; | |
4675 | s[-1] = ' '; | |
4676 | /* FALL THROUGH */ | |
4677 | case ' ': case '\t': | |
4678 | skipspaces++; | |
4679 | continue; | |
a1b95068 WL |
4680 | case 0: |
4681 | if (s < send) { | |
4682 | skipspaces = 0; | |
4683 | continue; | |
4684 | } /* else FALL THROUGH */ | |
4685 | case '\n': | |
a0d0e21e LW |
4686 | arg = s - base; |
4687 | skipspaces++; | |
4688 | arg -= skipspaces; | |
4689 | if (arg) { | |
5f05dabc | 4690 | if (postspace) |
a0d0e21e | 4691 | *fpc++ = FF_SPACE; |
a0d0e21e | 4692 | *fpc++ = FF_LITERAL; |
eb160463 | 4693 | *fpc++ = (U16)arg; |
a0d0e21e | 4694 | } |
5f05dabc | 4695 | postspace = FALSE; |
a0d0e21e LW |
4696 | if (s <= send) |
4697 | skipspaces--; | |
4698 | if (skipspaces) { | |
4699 | *fpc++ = FF_SKIP; | |
eb160463 | 4700 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4701 | } |
4702 | skipspaces = 0; | |
4703 | if (s <= send) | |
4704 | *fpc++ = FF_NEWLINE; | |
4705 | if (noblank) { | |
4706 | *fpc++ = FF_BLANK; | |
4707 | if (repeat) | |
4708 | arg = fpc - linepc + 1; | |
4709 | else | |
4710 | arg = 0; | |
eb160463 | 4711 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4712 | } |
4713 | if (s < send) { | |
4714 | linepc = fpc; | |
4715 | *fpc++ = FF_LINEMARK; | |
4716 | noblank = repeat = FALSE; | |
4717 | base = s; | |
4718 | } | |
4719 | else | |
4720 | s++; | |
4721 | continue; | |
4722 | ||
4723 | case '@': | |
4724 | case '^': | |
4725 | ischop = s[-1] == '^'; | |
4726 | ||
4727 | if (postspace) { | |
4728 | *fpc++ = FF_SPACE; | |
4729 | postspace = FALSE; | |
4730 | } | |
4731 | arg = (s - base) - 1; | |
4732 | if (arg) { | |
4733 | *fpc++ = FF_LITERAL; | |
eb160463 | 4734 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4735 | } |
4736 | ||
4737 | base = s - 1; | |
4738 | *fpc++ = FF_FETCH; | |
4739 | if (*s == '*') { | |
4740 | s++; | |
a1b95068 WL |
4741 | *fpc++ = 2; /* skip the @* or ^* */ |
4742 | if (ischop) { | |
4743 | *fpc++ = FF_LINESNGL; | |
4744 | *fpc++ = FF_CHOP; | |
4745 | } else | |
4746 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4747 | } |
4748 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4749 | arg = ischop ? 512 : 0; | |
4750 | base = s - 1; | |
4751 | while (*s == '#') | |
4752 | s++; | |
4753 | if (*s == '.') { | |
06b5626a | 4754 | const char * const f = ++s; |
a0d0e21e LW |
4755 | while (*s == '#') |
4756 | s++; | |
4757 | arg |= 256 + (s - f); | |
4758 | } | |
4759 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4760 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4761 | *fpc++ = (U16)arg; |
a1b95068 | 4762 | unchopnum |= ! ischop; |
784707d5 JP |
4763 | } |
4764 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4765 | arg = ischop ? 512 : 0; | |
4766 | base = s - 1; | |
4767 | s++; /* skip the '0' first */ | |
4768 | while (*s == '#') | |
4769 | s++; | |
4770 | if (*s == '.') { | |
06b5626a | 4771 | const char * const f = ++s; |
784707d5 JP |
4772 | while (*s == '#') |
4773 | s++; | |
4774 | arg |= 256 + (s - f); | |
4775 | } | |
4776 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4777 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4778 | *fpc++ = (U16)arg; |
a1b95068 | 4779 | unchopnum |= ! ischop; |
a0d0e21e LW |
4780 | } |
4781 | else { | |
4782 | I32 prespace = 0; | |
4783 | bool ismore = FALSE; | |
4784 | ||
4785 | if (*s == '>') { | |
4786 | while (*++s == '>') ; | |
4787 | prespace = FF_SPACE; | |
4788 | } | |
4789 | else if (*s == '|') { | |
4790 | while (*++s == '|') ; | |
4791 | prespace = FF_HALFSPACE; | |
4792 | postspace = TRUE; | |
4793 | } | |
4794 | else { | |
4795 | if (*s == '<') | |
4796 | while (*++s == '<') ; | |
4797 | postspace = TRUE; | |
4798 | } | |
4799 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4800 | s += 3; | |
4801 | ismore = TRUE; | |
4802 | } | |
4803 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4804 | ||
4805 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4806 | ||
4807 | if (prespace) | |
eb160463 | 4808 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4809 | *fpc++ = FF_ITEM; |
4810 | if (ismore) | |
4811 | *fpc++ = FF_MORE; | |
4812 | if (ischop) | |
4813 | *fpc++ = FF_CHOP; | |
4814 | } | |
4815 | base = s; | |
4816 | skipspaces = 0; | |
4817 | continue; | |
4818 | } | |
4819 | } | |
4820 | *fpc++ = FF_END; | |
4821 | ||
815f25c6 | 4822 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4823 | arg = fpc - fops; |
4824 | { /* need to jump to the next word */ | |
4825 | int z; | |
4826 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4827 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4828 | s = SvPVX(sv) + SvCUR(sv) + z; |
4829 | } | |
dea28490 | 4830 | Copy(fops, s, arg, U32); |
a0d0e21e | 4831 | Safefree(fops); |
c445ea15 | 4832 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4833 | SvCOMPILED_on(sv); |
a1b95068 | 4834 | |
bfed75c6 | 4835 | if (unchopnum && repeat) |
a1b95068 WL |
4836 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4837 | return 0; | |
4838 | } | |
4839 | ||
4840 | ||
4841 | STATIC bool | |
4842 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4843 | { | |
4844 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4845 | NV pwr = 1; | |
4846 | NV eps = 0.5; | |
4847 | bool res = FALSE; | |
4848 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4849 | ||
4850 | if (frcsize & 256) | |
4851 | intsize--; | |
4852 | frcsize &= 255; | |
4853 | intsize -= frcsize; | |
4854 | ||
4855 | while (intsize--) pwr *= 10.0; | |
4856 | while (frcsize--) eps /= 10.0; | |
4857 | ||
4858 | if( value >= 0 ){ | |
4859 | if (value + eps >= pwr) | |
4860 | res = TRUE; | |
4861 | } else { | |
4862 | if (value - eps <= -pwr) | |
4863 | res = TRUE; | |
4864 | } | |
4865 | return res; | |
a0d0e21e | 4866 | } |
4e35701f | 4867 | |
bbed91b5 | 4868 | static I32 |
0bd48802 | 4869 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4870 | { |
27da23d5 | 4871 | dVAR; |
0bd48802 | 4872 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4873 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
4874 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
4875 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 4876 | int status = 0; |
ec0b63d7 | 4877 | SV *upstream; |
941a98a0 | 4878 | STRLEN got_len; |
162177c1 Z |
4879 | char *got_p = NULL; |
4880 | char *prune_from = NULL; | |
34113e50 | 4881 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4882 | STRLEN umaxlen; |
4883 | ||
7918f24d NC |
4884 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
4885 | ||
bb7a0f54 MHM |
4886 | assert(maxlen >= 0); |
4887 | umaxlen = maxlen; | |
5675696b | 4888 | |
bbed91b5 KF |
4889 | /* I was having segfault trouble under Linux 2.2.5 after a |
4890 | parse error occured. (Had to hack around it with a test | |
13765c85 | 4891 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
4892 | not sure where the trouble is yet. XXX */ |
4893 | ||
4464f08e NC |
4894 | { |
4895 | SV *const cache = datasv; | |
937b367d NC |
4896 | if (SvOK(cache)) { |
4897 | STRLEN cache_len; | |
4898 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4899 | STRLEN take = 0; |
4900 | ||
bb7a0f54 | 4901 | if (umaxlen) { |
941a98a0 NC |
4902 | /* Running in block mode and we have some cached data already. |
4903 | */ | |
bb7a0f54 | 4904 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4905 | /* In fact, so much data we don't even need to call |
4906 | filter_read. */ | |
bb7a0f54 | 4907 | take = umaxlen; |
941a98a0 NC |
4908 | } |
4909 | } else { | |
10edeb5d JH |
4910 | const char *const first_nl = |
4911 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
4912 | if (first_nl) { |
4913 | take = first_nl + 1 - cache_p; | |
4914 | } | |
4915 | } | |
4916 | if (take) { | |
4917 | sv_catpvn(buf_sv, cache_p, take); | |
4918 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4919 | /* Definately not EOF */ |
4920 | return 1; | |
4921 | } | |
941a98a0 | 4922 | |
937b367d | 4923 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4924 | if (umaxlen) { |
4925 | umaxlen -= cache_len; | |
941a98a0 | 4926 | } |
937b367d | 4927 | SvOK_off(cache); |
34113e50 | 4928 | read_from_cache = TRUE; |
937b367d NC |
4929 | } |
4930 | } | |
ec0b63d7 | 4931 | |
34113e50 NC |
4932 | /* Filter API says that the filter appends to the contents of the buffer. |
4933 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4934 | then clearly what it contains is already filtered by this filter, so we | |
4935 | don't want to pass it in a second time. | |
4936 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4937 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4938 | ? sv_newmortal() : buf_sv; | |
4939 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4940 | |
bbed91b5 | 4941 | if (filter_has_file) { |
67e70b33 | 4942 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4943 | } |
4944 | ||
34113e50 | 4945 | if (filter_sub && status >= 0) { |
39644a26 | 4946 | dSP; |
bbed91b5 KF |
4947 | int count; |
4948 | ||
d343c3ef | 4949 | ENTER_with_name("call_filter_sub"); |
bbed91b5 KF |
4950 | SAVE_DEFSV; |
4951 | SAVETMPS; | |
4952 | EXTEND(SP, 2); | |
4953 | ||
414bf5ae | 4954 | DEFSV_set(upstream); |
bbed91b5 | 4955 | PUSHMARK(SP); |
6e449a3a | 4956 | mPUSHi(0); |
bbed91b5 KF |
4957 | if (filter_state) { |
4958 | PUSHs(filter_state); | |
4959 | } | |
4960 | PUTBACK; | |
4961 | count = call_sv(filter_sub, G_SCALAR); | |
4962 | SPAGAIN; | |
4963 | ||
4964 | if (count > 0) { | |
4965 | SV *out = POPs; | |
4966 | if (SvOK(out)) { | |
941a98a0 | 4967 | status = SvIV(out); |
bbed91b5 KF |
4968 | } |
4969 | } | |
4970 | ||
4971 | PUTBACK; | |
4972 | FREETMPS; | |
d343c3ef | 4973 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
4974 | } |
4975 | ||
941a98a0 NC |
4976 | if(SvOK(upstream)) { |
4977 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4978 | if (umaxlen) { |
4979 | if (got_len > umaxlen) { | |
4980 | prune_from = got_p + umaxlen; | |
937b367d | 4981 | } |
941a98a0 | 4982 | } else { |
162177c1 | 4983 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
4984 | if (first_nl && first_nl + 1 < got_p + got_len) { |
4985 | /* There's a second line here... */ | |
4986 | prune_from = first_nl + 1; | |
937b367d | 4987 | } |
937b367d NC |
4988 | } |
4989 | } | |
941a98a0 NC |
4990 | if (prune_from) { |
4991 | /* Oh. Too long. Stuff some in our cache. */ | |
4992 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 4993 | SV *const cache = datasv; |
941a98a0 | 4994 | |
4464f08e | 4995 | if (SvOK(cache)) { |
941a98a0 NC |
4996 | /* Cache should be empty. */ |
4997 | assert(!SvCUR(cache)); | |
4998 | } | |
4999 | ||
5000 | sv_setpvn(cache, prune_from, cached_len); | |
5001 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5002 | "If it breaks, you get to keep both parts" | |
5003 | (Your code is broken if you don't put them back together again | |
5004 | before something notices.) */ | |
5005 | if (SvUTF8(upstream)) { | |
5006 | SvUTF8_on(cache); | |
5007 | } | |
5008 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5009 | *prune_from = 0; |
941a98a0 NC |
5010 | /* Can't yet be EOF */ |
5011 | if (status == 0) | |
5012 | status = 1; | |
5013 | } | |
937b367d | 5014 | |
34113e50 NC |
5015 | /* If they are at EOF but buf_sv has something in it, then they may never |
5016 | have touched the SV upstream, so it may be undefined. If we naively | |
5017 | concatenate it then we get a warning about use of uninitialised value. | |
5018 | */ | |
5019 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5020 | sv_catsv(buf_sv, upstream); |
5021 | } | |
5022 | ||
941a98a0 | 5023 | if (status <= 0) { |
bbed91b5 | 5024 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5025 | if (filter_state) { |
5026 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5027 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5028 | } |
5029 | if (filter_sub) { | |
5030 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5031 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5032 | } |
0bd48802 | 5033 | filter_del(S_run_user_filter); |
bbed91b5 | 5034 | } |
34113e50 NC |
5035 | if (status == 0 && read_from_cache) { |
5036 | /* If we read some data from the cache (and by getting here it implies | |
5037 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5038 | report that to our caller. */ | |
5039 | return 1; | |
5040 | } | |
941a98a0 | 5041 | return status; |
bbed91b5 | 5042 | } |
84d4ea48 | 5043 | |
be4b629d CN |
5044 | /* perhaps someone can come up with a better name for |
5045 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5046 | static bool |
5f66b61c | 5047 | S_path_is_absolute(const char *name) |
be4b629d | 5048 | { |
7918f24d NC |
5049 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5050 | ||
be4b629d | 5051 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5052 | #ifdef WIN32 |
36f064bc CL |
5053 | || (*name == '.' && ((name[1] == '/' || |
5054 | (name[1] == '.' && name[2] == '/')) | |
5055 | || (name[1] == '\\' || | |
5056 | ( name[1] == '.' && name[2] == '\\'))) | |
5057 | ) | |
5058 | #else | |
be4b629d | 5059 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5060 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5061 | #endif |
0bd48802 | 5062 | ) |
be4b629d CN |
5063 | { |
5064 | return TRUE; | |
5065 | } | |
5066 | else | |
5067 | return FALSE; | |
5068 | } | |
241d1a3b NC |
5069 | |
5070 | /* | |
5071 | * Local variables: | |
5072 | * c-indentation-style: bsd | |
5073 | * c-basic-offset: 4 | |
5074 | * indent-tabs-mode: t | |
5075 | * End: | |
5076 | * | |
37442d52 RGS |
5077 | * ex: set ts=8 sts=4 sw=4 noet: |
5078 | */ |