Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
fdf8c088 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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 | /* | |
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 | ||
166f8a29 DM |
20 | /* This file contains control-oriented pp ("push/pop") functions that |
21 | * execute the opcodes that make up a perl program. A typical pp function | |
22 | * expects to find its arguments on the stack, and usually pushes its | |
23 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
24 | * contains a pointer to the relevant pp_foo() function. | |
25 | * | |
26 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
27 | * alter the flow of control of the program. | |
28 | */ | |
29 | ||
30 | ||
a0d0e21e | 31 | #include "EXTERN.h" |
864dbfa3 | 32 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
33 | #include "perl.h" |
34 | ||
35 | #ifndef WORD_ALIGN | |
dea28490 | 36 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
37 | #endif |
38 | ||
54310121 | 39 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 40 | |
a0d0e21e LW |
41 | PP(pp_wantarray) |
42 | { | |
97aff369 | 43 | dVAR; |
39644a26 | 44 | dSP; |
a0d0e21e LW |
45 | I32 cxix; |
46 | EXTEND(SP, 1); | |
47 | ||
48 | cxix = dopoptosub(cxstack_ix); | |
49 | if (cxix < 0) | |
50 | RETPUSHUNDEF; | |
51 | ||
54310121 | 52 | switch (cxstack[cxix].blk_gimme) { |
53 | case G_ARRAY: | |
a0d0e21e | 54 | RETPUSHYES; |
54310121 | 55 | case G_SCALAR: |
a0d0e21e | 56 | RETPUSHNO; |
54310121 | 57 | default: |
58 | RETPUSHUNDEF; | |
59 | } | |
a0d0e21e LW |
60 | } |
61 | ||
2cd61cdb IZ |
62 | PP(pp_regcreset) |
63 | { | |
97aff369 | 64 | dVAR; |
2cd61cdb IZ |
65 | /* XXXX Should store the old value to allow for tie/overload - and |
66 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 67 | PL_reginterp_cnt = 0; |
0b4182de | 68 | TAINT_NOT; |
2cd61cdb IZ |
69 | return NORMAL; |
70 | } | |
71 | ||
b3eb6a9b GS |
72 | PP(pp_regcomp) |
73 | { | |
97aff369 | 74 | dVAR; |
39644a26 | 75 | dSP; |
a0d0e21e | 76 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 77 | SV *tmpstr; |
4608196e | 78 | MAGIC *mg = NULL; |
c737faaf | 79 | regexp * re; |
bfed75c6 | 80 | |
4b5a0d1c | 81 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 82 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
83 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
84 | if (PL_op->op_flags & OPf_STACKED) { | |
85 | dMARK; | |
86 | SP = MARK; | |
87 | } | |
88 | else | |
89 | (void)POPs; | |
90 | RETURN; | |
91 | } | |
513629ba | 92 | #endif |
131b3ad0 DM |
93 | if (PL_op->op_flags & OPf_STACKED) { |
94 | /* multiple args; concatentate them */ | |
95 | dMARK; dORIGMARK; | |
96 | tmpstr = PAD_SV(ARGTARG); | |
97 | sv_setpvn(tmpstr, "", 0); | |
98 | while (++MARK <= SP) { | |
99 | if (PL_amagic_generation) { | |
100 | SV *sv; | |
101 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(*MARK)) && | |
102 | (sv = amagic_call(tmpstr, *MARK, concat_amg, AMGf_assign))) | |
103 | { | |
104 | sv_setsv(tmpstr, sv); | |
105 | continue; | |
106 | } | |
107 | } | |
108 | sv_catsv(tmpstr, *MARK); | |
109 | } | |
110 | SvSETMAGIC(tmpstr); | |
111 | SP = ORIGMARK; | |
112 | } | |
113 | else | |
114 | tmpstr = POPs; | |
513629ba | 115 | |
b3eb6a9b | 116 | if (SvROK(tmpstr)) { |
d8f6592e | 117 | SV * const sv = SvRV(tmpstr); |
c277df42 | 118 | if(SvMAGICAL(sv)) |
14befaf4 | 119 | mg = mg_find(sv, PERL_MAGIC_qr); |
c277df42 | 120 | } |
b3eb6a9b | 121 | if (mg) { |
28d8d7f4 | 122 | regexp * const re = reg_temp_copy((regexp *)mg->mg_obj); |
aaa362c4 | 123 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 124 | PM_SETRE(pm, re); |
c277df42 IZ |
125 | } |
126 | else { | |
e62f0680 NC |
127 | STRLEN len; |
128 | const char *t = SvPV_const(tmpstr, len); | |
c737faaf | 129 | re = PM_GETRE(pm); |
c277df42 | 130 | |
20408e3c | 131 | /* Check against the last compiled regexp. */ |
d8f6592e AL |
132 | if (!re || !re->precomp || re->prelen != (I32)len || |
133 | memNE(re->precomp, t, len)) | |
85aff577 | 134 | { |
664e119d | 135 | const regexp_engine *eng = re ? re->engine : NULL; |
c737faaf | 136 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
137 | if (re) { |
138 | ReREFCNT_dec(re); | |
4608196e | 139 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
1e2e3d02 YO |
140 | } else if (PL_curcop->cop_hints_hash) { |
141 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
142 | "regcomp", 7, 0, 0); | |
143 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
144 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 145 | } |
664e119d | 146 | |
533c011a | 147 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 148 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 149 | |
84e09d5e | 150 | if (DO_UTF8(tmpstr)) |
c737faaf YO |
151 | pm_flags |= RXf_UTF8; |
152 | ||
1e2e3d02 | 153 | if (eng) |
c737faaf | 154 | PM_SETRE(pm, CALLREGCOMP_ENG(eng,(char *)t, (char *)t + len, pm_flags)); |
1e2e3d02 | 155 | else |
c737faaf YO |
156 | PM_SETRE(pm, CALLREGCOMP((char *)t, (char *)t + len, pm_flags)); |
157 | ||
f86aaa29 | 158 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 159 | inside tie/overload accessors. */ |
c277df42 | 160 | } |
4633a7c4 | 161 | } |
c737faaf YO |
162 | |
163 | re = PM_GETRE(pm); | |
a0d0e21e | 164 | |
72311751 | 165 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
166 | if (PL_tainting) { |
167 | if (PL_tainted) | |
c737faaf | 168 | re->extflags |= RXf_TAINTED; |
72311751 | 169 | else |
c737faaf | 170 | re->extflags &= ~RXf_TAINTED; |
72311751 GS |
171 | } |
172 | #endif | |
173 | ||
aaa362c4 | 174 | if (!PM_GETRE(pm)->prelen && PL_curpm) |
3280af22 | 175 | pm = PL_curpm; |
a0d0e21e | 176 | |
c737faaf YO |
177 | |
178 | #if !defined(USE_ITHREADS) | |
179 | /* can't change the optree at runtime either */ | |
180 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 181 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 182 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 183 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 184 | } |
c737faaf | 185 | #endif |
a0d0e21e LW |
186 | RETURN; |
187 | } | |
188 | ||
189 | PP(pp_substcont) | |
190 | { | |
97aff369 | 191 | dVAR; |
39644a26 | 192 | dSP; |
c09156bb | 193 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
194 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
195 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
196 | register char *s = cx->sb_s; |
197 | register char *m = cx->sb_m; | |
198 | char *orig = cx->sb_orig; | |
901017d6 | 199 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 200 | SV *nsv = NULL; |
988e6e7e AE |
201 | REGEXP *old = PM_GETRE(pm); |
202 | if(old != rx) { | |
bfed75c6 | 203 | if(old) |
988e6e7e | 204 | ReREFCNT_dec(old); |
e22ae1e2 | 205 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
206 | } |
207 | ||
d9f97599 | 208 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 209 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 210 | |
a0d0e21e | 211 | if (cx->sb_iters++) { |
a3b680e6 | 212 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 213 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 214 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 215 | |
48c036b1 GS |
216 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
217 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 218 | sv_catsv(dstr, POPs); |
8ff629d9 | 219 | FREETMPS; /* Prevent excess tmp stack */ |
a0d0e21e LW |
220 | |
221 | /* Are we done */ | |
f9f4320a | 222 | if (cx->sb_once || !CALLREGEXEC(rx, s, cx->sb_strend, orig, |
9661b544 | 223 | s == m, cx->sb_targ, NULL, |
22e551b9 | 224 | ((cx->sb_rflags & REXEC_COPY_STR) |
cf93c79d IZ |
225 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) |
226 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 227 | { |
823a54a3 | 228 | SV * const targ = cx->sb_targ; |
748a9306 | 229 | |
078c425b JH |
230 | assert(cx->sb_strend >= s); |
231 | if(cx->sb_strend > s) { | |
232 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
233 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
234 | else | |
235 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
236 | } | |
48c036b1 | 237 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 238 | |
f8c7b90f | 239 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
240 | if (SvIsCOW(targ)) { |
241 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
242 | } else | |
243 | #endif | |
244 | { | |
8bd4d4c5 | 245 | SvPV_free(targ); |
ed252734 | 246 | } |
f880fe2f | 247 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
248 | SvCUR_set(targ, SvCUR(dstr)); |
249 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
250 | if (DO_UTF8(dstr)) |
251 | SvUTF8_on(targ); | |
6136c704 | 252 | SvPV_set(dstr, NULL); |
48c036b1 GS |
253 | |
254 | TAINT_IF(cx->sb_rxtainted & 1); | |
22e13caa | 255 | PUSHs(sv_2mortal(newSViv(saviters - 1))); |
48c036b1 | 256 | |
ffc61ed2 | 257 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 258 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 259 | SvSETMAGIC(targ); |
9212bbba | 260 | SvTAINT(targ); |
5cd24f17 | 261 | |
4633a7c4 | 262 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
263 | POPSUBST(cx); |
264 | RETURNOP(pm->op_next); | |
265 | } | |
8e5e9ebe | 266 | cx->sb_iters = saviters; |
a0d0e21e | 267 | } |
cf93c79d | 268 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
269 | m = s; |
270 | s = orig; | |
cf93c79d | 271 | cx->sb_orig = orig = rx->subbeg; |
a0d0e21e LW |
272 | s = orig + (m - s); |
273 | cx->sb_strend = s + (cx->sb_strend - m); | |
274 | } | |
f0ab9afb | 275 | cx->sb_m = m = rx->offs[0].start + orig; |
db79b45b | 276 | if (m > s) { |
bfed75c6 | 277 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
278 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
279 | else | |
280 | sv_catpvn(dstr, s, m-s); | |
281 | } | |
f0ab9afb | 282 | cx->sb_s = rx->offs[0].end + orig; |
084916e3 | 283 | { /* Update the pos() information. */ |
44f8325f | 284 | SV * const sv = cx->sb_targ; |
084916e3 JH |
285 | MAGIC *mg; |
286 | I32 i; | |
7a7f3e45 | 287 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 288 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 289 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 290 | if (SvIsCOW(sv)) |
d83f0a82 NC |
291 | sv_force_normal_flags(sv, 0); |
292 | #endif | |
293 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
294 | NULL, 0); | |
084916e3 JH |
295 | } |
296 | i = m - orig; | |
297 | if (DO_UTF8(sv)) | |
298 | sv_pos_b2u(sv, &i); | |
299 | mg->mg_len = i; | |
300 | } | |
988e6e7e | 301 | if (old != rx) |
454f1e26 | 302 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
303 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
304 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 305 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
306 | } |
307 | ||
c90c0ff4 | 308 | void |
864dbfa3 | 309 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 310 | { |
311 | UV *p = (UV*)*rsp; | |
312 | U32 i; | |
96a5add6 | 313 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 314 | |
d9f97599 | 315 | if (!p || p[1] < rx->nparens) { |
f8c7b90f | 316 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
317 | i = 7 + rx->nparens * 2; |
318 | #else | |
d9f97599 | 319 | i = 6 + rx->nparens * 2; |
ed252734 | 320 | #endif |
c90c0ff4 | 321 | if (!p) |
a02a5408 | 322 | Newx(p, i, UV); |
c90c0ff4 | 323 | else |
324 | Renew(p, i, UV); | |
325 | *rsp = (void*)p; | |
326 | } | |
327 | ||
c445ea15 | 328 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? rx->subbeg : NULL); |
cf93c79d | 329 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 330 | |
f8c7b90f | 331 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 | 332 | *p++ = PTR2UV(rx->saved_copy); |
c445ea15 | 333 | rx->saved_copy = NULL; |
ed252734 NC |
334 | #endif |
335 | ||
d9f97599 | 336 | *p++ = rx->nparens; |
c90c0ff4 | 337 | |
56431972 | 338 | *p++ = PTR2UV(rx->subbeg); |
cf93c79d | 339 | *p++ = (UV)rx->sublen; |
d9f97599 | 340 | for (i = 0; i <= rx->nparens; ++i) { |
f0ab9afb NC |
341 | *p++ = (UV)rx->offs[i].start; |
342 | *p++ = (UV)rx->offs[i].end; | |
c90c0ff4 | 343 | } |
344 | } | |
345 | ||
346 | void | |
864dbfa3 | 347 | Perl_rxres_restore(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 348 | { |
349 | UV *p = (UV*)*rsp; | |
350 | U32 i; | |
96a5add6 | 351 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 352 | |
ed252734 | 353 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 354 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 355 | *p++ = 0; |
356 | ||
f8c7b90f | 357 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
358 | if (rx->saved_copy) |
359 | SvREFCNT_dec (rx->saved_copy); | |
360 | rx->saved_copy = INT2PTR(SV*,*p); | |
361 | *p++ = 0; | |
362 | #endif | |
363 | ||
d9f97599 | 364 | rx->nparens = *p++; |
c90c0ff4 | 365 | |
56431972 | 366 | rx->subbeg = INT2PTR(char*,*p++); |
cf93c79d | 367 | rx->sublen = (I32)(*p++); |
d9f97599 | 368 | for (i = 0; i <= rx->nparens; ++i) { |
f0ab9afb NC |
369 | rx->offs[i].start = (I32)(*p++); |
370 | rx->offs[i].end = (I32)(*p++); | |
c90c0ff4 | 371 | } |
372 | } | |
373 | ||
374 | void | |
864dbfa3 | 375 | Perl_rxres_free(pTHX_ void **rsp) |
c90c0ff4 | 376 | { |
44f8325f | 377 | UV * const p = (UV*)*rsp; |
96a5add6 | 378 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 379 | |
380 | if (p) { | |
94010e71 NC |
381 | #ifdef PERL_POISON |
382 | void *tmp = INT2PTR(char*,*p); | |
383 | Safefree(tmp); | |
384 | if (*p) | |
7e337ee0 | 385 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 386 | #else |
56431972 | 387 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 388 | #endif |
f8c7b90f | 389 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
390 | if (p[1]) { |
391 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
392 | } | |
393 | #endif | |
c90c0ff4 | 394 | Safefree(p); |
4608196e | 395 | *rsp = NULL; |
c90c0ff4 | 396 | } |
397 | } | |
398 | ||
a0d0e21e LW |
399 | PP(pp_formline) |
400 | { | |
97aff369 | 401 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 402 | register SV * const tmpForm = *++MARK; |
dea28490 | 403 | register U32 *fpc; |
a0d0e21e | 404 | register char *t; |
245d4a47 | 405 | const char *f; |
a0d0e21e | 406 | register I32 arg; |
c445ea15 AL |
407 | register SV *sv = NULL; |
408 | const char *item = NULL; | |
9c5ffd7c JH |
409 | I32 itemsize = 0; |
410 | I32 fieldsize = 0; | |
a0d0e21e | 411 | I32 lines = 0; |
c445ea15 AL |
412 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
413 | const char *chophere = NULL; | |
414 | char *linemark = NULL; | |
65202027 | 415 | NV value; |
9c5ffd7c | 416 | bool gotsome = FALSE; |
a0d0e21e | 417 | STRLEN len; |
823a54a3 | 418 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 419 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
420 | bool item_is_utf8 = FALSE; |
421 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 422 | SV * nsv = NULL; |
cbbf8932 | 423 | OP * parseres = NULL; |
bfed75c6 | 424 | const char *fmt; |
a1b95068 | 425 | bool oneline; |
a0d0e21e | 426 | |
76e3520e | 427 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
428 | if (SvREADONLY(tmpForm)) { |
429 | SvREADONLY_off(tmpForm); | |
a1b95068 | 430 | parseres = doparseform(tmpForm); |
445b3f51 GS |
431 | SvREADONLY_on(tmpForm); |
432 | } | |
433 | else | |
a1b95068 WL |
434 | parseres = doparseform(tmpForm); |
435 | if (parseres) | |
436 | return parseres; | |
a0d0e21e | 437 | } |
3280af22 | 438 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
439 | if (DO_UTF8(PL_formtarget)) |
440 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 441 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 442 | t += len; |
245d4a47 | 443 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 444 | /* need to jump to the next word */ |
245d4a47 | 445 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
446 | |
447 | for (;;) { | |
448 | DEBUG_f( { | |
bfed75c6 | 449 | const char *name = "???"; |
a0d0e21e LW |
450 | arg = -1; |
451 | switch (*fpc) { | |
452 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
453 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
454 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
455 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
456 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
457 | ||
458 | case FF_CHECKNL: name = "CHECKNL"; break; | |
459 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
460 | case FF_SPACE: name = "SPACE"; break; | |
461 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
462 | case FF_ITEM: name = "ITEM"; break; | |
463 | case FF_CHOP: name = "CHOP"; break; | |
464 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
465 | case FF_NEWLINE: name = "NEWLINE"; break; | |
466 | case FF_MORE: name = "MORE"; break; | |
467 | case FF_LINEMARK: name = "LINEMARK"; break; | |
468 | case FF_END: name = "END"; break; | |
bfed75c6 | 469 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 470 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
471 | } |
472 | if (arg >= 0) | |
bf49b057 | 473 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 474 | else |
bf49b057 | 475 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 476 | } ); |
a0d0e21e LW |
477 | switch (*fpc++) { |
478 | case FF_LINEMARK: | |
479 | linemark = t; | |
a0d0e21e LW |
480 | lines++; |
481 | gotsome = FALSE; | |
482 | break; | |
483 | ||
484 | case FF_LITERAL: | |
485 | arg = *fpc++; | |
1bd51a4c | 486 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 487 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
488 | *t = '\0'; |
489 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
490 | t = SvEND(PL_formtarget); | |
1bd51a4c IH |
491 | break; |
492 | } | |
493 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 494 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
495 | *t = '\0'; |
496 | sv_utf8_upgrade(PL_formtarget); | |
497 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
498 | t = SvEND(PL_formtarget); | |
499 | targ_is_utf8 = TRUE; | |
500 | } | |
a0d0e21e LW |
501 | while (arg--) |
502 | *t++ = *f++; | |
503 | break; | |
504 | ||
505 | case FF_SKIP: | |
506 | f += *fpc++; | |
507 | break; | |
508 | ||
509 | case FF_FETCH: | |
510 | arg = *fpc++; | |
511 | f += arg; | |
512 | fieldsize = arg; | |
513 | ||
514 | if (MARK < SP) | |
515 | sv = *++MARK; | |
516 | else { | |
3280af22 | 517 | sv = &PL_sv_no; |
599cee73 | 518 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 519 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
520 | } |
521 | break; | |
522 | ||
523 | case FF_CHECKNL: | |
5a34cab7 NC |
524 | { |
525 | const char *send; | |
526 | const char *s = item = SvPV_const(sv, len); | |
527 | itemsize = len; | |
528 | if (DO_UTF8(sv)) { | |
529 | itemsize = sv_len_utf8(sv); | |
530 | if (itemsize != (I32)len) { | |
531 | I32 itembytes; | |
532 | if (itemsize > fieldsize) { | |
533 | itemsize = fieldsize; | |
534 | itembytes = itemsize; | |
535 | sv_pos_u2b(sv, &itembytes, 0); | |
536 | } | |
537 | else | |
538 | itembytes = len; | |
539 | send = chophere = s + itembytes; | |
540 | while (s < send) { | |
541 | if (*s & ~31) | |
542 | gotsome = TRUE; | |
543 | else if (*s == '\n') | |
544 | break; | |
545 | s++; | |
546 | } | |
547 | item_is_utf8 = TRUE; | |
548 | itemsize = s - item; | |
549 | sv_pos_b2u(sv, &itemsize); | |
550 | break; | |
a0ed51b3 | 551 | } |
a0ed51b3 | 552 | } |
5a34cab7 NC |
553 | item_is_utf8 = FALSE; |
554 | if (itemsize > fieldsize) | |
555 | itemsize = fieldsize; | |
556 | send = chophere = s + itemsize; | |
557 | while (s < send) { | |
558 | if (*s & ~31) | |
559 | gotsome = TRUE; | |
560 | else if (*s == '\n') | |
561 | break; | |
562 | s++; | |
563 | } | |
564 | itemsize = s - item; | |
565 | break; | |
a0ed51b3 | 566 | } |
a0d0e21e LW |
567 | |
568 | case FF_CHECKCHOP: | |
5a34cab7 NC |
569 | { |
570 | const char *s = item = SvPV_const(sv, len); | |
571 | itemsize = len; | |
572 | if (DO_UTF8(sv)) { | |
573 | itemsize = sv_len_utf8(sv); | |
574 | if (itemsize != (I32)len) { | |
575 | I32 itembytes; | |
576 | if (itemsize <= fieldsize) { | |
577 | const char *send = chophere = s + itemsize; | |
578 | while (s < send) { | |
579 | if (*s == '\r') { | |
580 | itemsize = s - item; | |
a0ed51b3 | 581 | chophere = s; |
a0ed51b3 | 582 | break; |
5a34cab7 NC |
583 | } |
584 | if (*s++ & ~31) | |
a0ed51b3 | 585 | gotsome = TRUE; |
a0ed51b3 | 586 | } |
a0ed51b3 | 587 | } |
5a34cab7 NC |
588 | else { |
589 | const char *send; | |
590 | itemsize = fieldsize; | |
591 | itembytes = itemsize; | |
592 | sv_pos_u2b(sv, &itembytes, 0); | |
593 | send = chophere = s + itembytes; | |
594 | while (s < send || (s == send && isSPACE(*s))) { | |
595 | if (isSPACE(*s)) { | |
596 | if (chopspace) | |
597 | chophere = s; | |
598 | if (*s == '\r') | |
599 | break; | |
600 | } | |
601 | else { | |
602 | if (*s & ~31) | |
603 | gotsome = TRUE; | |
604 | if (strchr(PL_chopset, *s)) | |
605 | chophere = s + 1; | |
606 | } | |
607 | s++; | |
608 | } | |
609 | itemsize = chophere - item; | |
610 | sv_pos_b2u(sv, &itemsize); | |
611 | } | |
612 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
613 | break; |
614 | } | |
a0d0e21e | 615 | } |
5a34cab7 NC |
616 | item_is_utf8 = FALSE; |
617 | if (itemsize <= fieldsize) { | |
618 | const char *const send = chophere = s + itemsize; | |
619 | while (s < send) { | |
620 | if (*s == '\r') { | |
621 | itemsize = s - item; | |
a0d0e21e | 622 | chophere = s; |
a0d0e21e | 623 | break; |
5a34cab7 NC |
624 | } |
625 | if (*s++ & ~31) | |
a0d0e21e | 626 | gotsome = TRUE; |
a0d0e21e | 627 | } |
a0d0e21e | 628 | } |
5a34cab7 NC |
629 | else { |
630 | const char *send; | |
631 | itemsize = fieldsize; | |
632 | send = chophere = s + itemsize; | |
633 | while (s < send || (s == send && isSPACE(*s))) { | |
634 | if (isSPACE(*s)) { | |
635 | if (chopspace) | |
636 | chophere = s; | |
637 | if (*s == '\r') | |
638 | break; | |
639 | } | |
640 | else { | |
641 | if (*s & ~31) | |
642 | gotsome = TRUE; | |
643 | if (strchr(PL_chopset, *s)) | |
644 | chophere = s + 1; | |
645 | } | |
646 | s++; | |
647 | } | |
648 | itemsize = chophere - item; | |
649 | } | |
650 | break; | |
a0d0e21e | 651 | } |
a0d0e21e LW |
652 | |
653 | case FF_SPACE: | |
654 | arg = fieldsize - itemsize; | |
655 | if (arg) { | |
656 | fieldsize -= arg; | |
657 | while (arg-- > 0) | |
658 | *t++ = ' '; | |
659 | } | |
660 | break; | |
661 | ||
662 | case FF_HALFSPACE: | |
663 | arg = fieldsize - itemsize; | |
664 | if (arg) { | |
665 | arg /= 2; | |
666 | fieldsize -= arg; | |
667 | while (arg-- > 0) | |
668 | *t++ = ' '; | |
669 | } | |
670 | break; | |
671 | ||
672 | case FF_ITEM: | |
5a34cab7 NC |
673 | { |
674 | const char *s = item; | |
675 | arg = itemsize; | |
676 | if (item_is_utf8) { | |
677 | if (!targ_is_utf8) { | |
678 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
679 | *t = '\0'; | |
680 | sv_utf8_upgrade(PL_formtarget); | |
681 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
682 | t = SvEND(PL_formtarget); | |
683 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 684 | } |
5a34cab7 NC |
685 | while (arg--) { |
686 | if (UTF8_IS_CONTINUED(*s)) { | |
687 | STRLEN skip = UTF8SKIP(s); | |
688 | switch (skip) { | |
689 | default: | |
690 | Move(s,t,skip,char); | |
691 | s += skip; | |
692 | t += skip; | |
693 | break; | |
694 | case 7: *t++ = *s++; | |
695 | case 6: *t++ = *s++; | |
696 | case 5: *t++ = *s++; | |
697 | case 4: *t++ = *s++; | |
698 | case 3: *t++ = *s++; | |
699 | case 2: *t++ = *s++; | |
700 | case 1: *t++ = *s++; | |
701 | } | |
702 | } | |
703 | else { | |
704 | if ( !((*t++ = *s++) & ~31) ) | |
705 | t[-1] = ' '; | |
706 | } | |
a0ed51b3 | 707 | } |
5a34cab7 | 708 | break; |
a0ed51b3 | 709 | } |
5a34cab7 NC |
710 | if (targ_is_utf8 && !item_is_utf8) { |
711 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
712 | *t = '\0'; | |
713 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
714 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 715 | #ifdef EBCDIC |
901017d6 | 716 | const int ch = *t; |
5a34cab7 | 717 | if (iscntrl(ch)) |
78da4d13 | 718 | #else |
5a34cab7 | 719 | if (!(*t & ~31)) |
78da4d13 | 720 | #endif |
5a34cab7 NC |
721 | *t = ' '; |
722 | } | |
723 | break; | |
78da4d13 | 724 | } |
5a34cab7 | 725 | while (arg--) { |
9d116dd7 | 726 | #ifdef EBCDIC |
901017d6 | 727 | const int ch = *t++ = *s++; |
5a34cab7 | 728 | if (iscntrl(ch)) |
a0d0e21e | 729 | #else |
5a34cab7 | 730 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 731 | #endif |
5a34cab7 NC |
732 | t[-1] = ' '; |
733 | } | |
734 | break; | |
a0d0e21e | 735 | } |
a0d0e21e LW |
736 | |
737 | case FF_CHOP: | |
5a34cab7 NC |
738 | { |
739 | const char *s = chophere; | |
740 | if (chopspace) { | |
af68e756 | 741 | while (isSPACE(*s)) |
5a34cab7 NC |
742 | s++; |
743 | } | |
744 | sv_chop(sv,s); | |
745 | SvSETMAGIC(sv); | |
746 | break; | |
a0d0e21e | 747 | } |
a0d0e21e | 748 | |
a1b95068 WL |
749 | case FF_LINESNGL: |
750 | chopspace = 0; | |
751 | oneline = TRUE; | |
752 | goto ff_line; | |
a0d0e21e | 753 | case FF_LINEGLOB: |
a1b95068 WL |
754 | oneline = FALSE; |
755 | ff_line: | |
5a34cab7 NC |
756 | { |
757 | const char *s = item = SvPV_const(sv, len); | |
758 | itemsize = len; | |
759 | if ((item_is_utf8 = DO_UTF8(sv))) | |
760 | itemsize = sv_len_utf8(sv); | |
761 | if (itemsize) { | |
762 | bool chopped = FALSE; | |
763 | const char *const send = s + len; | |
764 | gotsome = TRUE; | |
765 | chophere = s + itemsize; | |
766 | while (s < send) { | |
767 | if (*s++ == '\n') { | |
768 | if (oneline) { | |
769 | chopped = TRUE; | |
770 | chophere = s; | |
771 | break; | |
772 | } else { | |
773 | if (s == send) { | |
774 | itemsize--; | |
775 | chopped = TRUE; | |
776 | } else | |
777 | lines++; | |
778 | } | |
1bd51a4c | 779 | } |
a0d0e21e | 780 | } |
5a34cab7 NC |
781 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
782 | if (targ_is_utf8) | |
783 | SvUTF8_on(PL_formtarget); | |
784 | if (oneline) { | |
785 | SvCUR_set(sv, chophere - item); | |
786 | sv_catsv(PL_formtarget, sv); | |
787 | SvCUR_set(sv, itemsize); | |
788 | } else | |
789 | sv_catsv(PL_formtarget, sv); | |
790 | if (chopped) | |
791 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1); | |
792 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
793 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); | |
794 | if (item_is_utf8) | |
795 | targ_is_utf8 = TRUE; | |
a0d0e21e | 796 | } |
5a34cab7 | 797 | break; |
a0d0e21e | 798 | } |
a0d0e21e | 799 | |
a1b95068 WL |
800 | case FF_0DECIMAL: |
801 | arg = *fpc++; | |
802 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
803 | fmt = (const char *) |
804 | ((arg & 256) ? | |
805 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 806 | #else |
10edeb5d JH |
807 | fmt = (const char *) |
808 | ((arg & 256) ? | |
809 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
810 | #endif |
811 | goto ff_dec; | |
a0d0e21e | 812 | case FF_DECIMAL: |
a0d0e21e | 813 | arg = *fpc++; |
65202027 | 814 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
815 | fmt = (const char *) |
816 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 817 | #else |
10edeb5d JH |
818 | fmt = (const char *) |
819 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 820 | #endif |
a1b95068 | 821 | ff_dec: |
784707d5 JP |
822 | /* If the field is marked with ^ and the value is undefined, |
823 | blank it out. */ | |
784707d5 JP |
824 | if ((arg & 512) && !SvOK(sv)) { |
825 | arg = fieldsize; | |
826 | while (arg--) | |
827 | *t++ = ' '; | |
828 | break; | |
829 | } | |
830 | gotsome = TRUE; | |
831 | value = SvNV(sv); | |
a1b95068 | 832 | /* overflow evidence */ |
bfed75c6 | 833 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
834 | arg = fieldsize; |
835 | while (arg--) | |
836 | *t++ = '#'; | |
837 | break; | |
838 | } | |
784707d5 JP |
839 | /* Formats aren't yet marked for locales, so assume "yes". */ |
840 | { | |
841 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 842 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
843 | RESTORE_NUMERIC_STANDARD(); |
844 | } | |
845 | t += fieldsize; | |
846 | break; | |
a1b95068 | 847 | |
a0d0e21e LW |
848 | case FF_NEWLINE: |
849 | f++; | |
850 | while (t-- > linemark && *t == ' ') ; | |
851 | t++; | |
852 | *t++ = '\n'; | |
853 | break; | |
854 | ||
855 | case FF_BLANK: | |
856 | arg = *fpc++; | |
857 | if (gotsome) { | |
858 | if (arg) { /* repeat until fields exhausted? */ | |
859 | *t = '\0'; | |
b15aece3 | 860 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 861 | lines += FmLINES(PL_formtarget); |
a0d0e21e LW |
862 | if (lines == 200) { |
863 | arg = t - linemark; | |
864 | if (strnEQ(linemark, linemark - arg, arg)) | |
cea2e8a9 | 865 | DIE(aTHX_ "Runaway format"); |
a0d0e21e | 866 | } |
1bd51a4c IH |
867 | if (targ_is_utf8) |
868 | SvUTF8_on(PL_formtarget); | |
3280af22 | 869 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
870 | SP = ORIGMARK; |
871 | RETURNOP(cLISTOP->op_first); | |
872 | } | |
873 | } | |
874 | else { | |
875 | t = linemark; | |
876 | lines--; | |
877 | } | |
878 | break; | |
879 | ||
880 | case FF_MORE: | |
5a34cab7 NC |
881 | { |
882 | const char *s = chophere; | |
883 | const char *send = item + len; | |
884 | if (chopspace) { | |
af68e756 | 885 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 886 | s++; |
a0d0e21e | 887 | } |
5a34cab7 NC |
888 | if (s < send) { |
889 | char *s1; | |
890 | arg = fieldsize - itemsize; | |
891 | if (arg) { | |
892 | fieldsize -= arg; | |
893 | while (arg-- > 0) | |
894 | *t++ = ' '; | |
895 | } | |
896 | s1 = t - 3; | |
897 | if (strnEQ(s1," ",3)) { | |
898 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
899 | s1--; | |
900 | } | |
901 | *s1++ = '.'; | |
902 | *s1++ = '.'; | |
903 | *s1++ = '.'; | |
a0d0e21e | 904 | } |
5a34cab7 | 905 | break; |
a0d0e21e | 906 | } |
a0d0e21e LW |
907 | case FF_END: |
908 | *t = '\0'; | |
b15aece3 | 909 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
910 | if (targ_is_utf8) |
911 | SvUTF8_on(PL_formtarget); | |
3280af22 | 912 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
913 | SP = ORIGMARK; |
914 | RETPUSHYES; | |
915 | } | |
916 | } | |
917 | } | |
918 | ||
919 | PP(pp_grepstart) | |
920 | { | |
27da23d5 | 921 | dVAR; dSP; |
a0d0e21e LW |
922 | SV *src; |
923 | ||
3280af22 | 924 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 925 | (void)POPMARK; |
54310121 | 926 | if (GIMME_V == G_SCALAR) |
0b024f31 | 927 | XPUSHs(sv_2mortal(newSViv(0))); |
533c011a | 928 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 929 | } |
3280af22 | 930 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
931 | pp_pushmark(); /* push dst */ |
932 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
933 | ENTER; /* enter outer scope */ |
934 | ||
935 | SAVETMPS; | |
59f00321 RGS |
936 | if (PL_op->op_private & OPpGREP_LEX) |
937 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
938 | else | |
939 | SAVE_DEFSV; | |
a0d0e21e | 940 | ENTER; /* enter inner scope */ |
7766f137 | 941 | SAVEVPTR(PL_curpm); |
a0d0e21e | 942 | |
3280af22 | 943 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 944 | SvTEMP_off(src); |
59f00321 RGS |
945 | if (PL_op->op_private & OPpGREP_LEX) |
946 | PAD_SVl(PL_op->op_targ) = src; | |
947 | else | |
948 | DEFSV = src; | |
a0d0e21e LW |
949 | |
950 | PUTBACK; | |
533c011a | 951 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 952 | pp_pushmark(); /* push top */ |
533c011a | 953 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
954 | } |
955 | ||
a0d0e21e LW |
956 | PP(pp_mapwhile) |
957 | { | |
27da23d5 | 958 | dVAR; dSP; |
f54cb97a | 959 | const I32 gimme = GIMME_V; |
544f3153 | 960 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
961 | I32 count; |
962 | I32 shift; | |
963 | SV** src; | |
ac27b0f5 | 964 | SV** dst; |
a0d0e21e | 965 | |
544f3153 | 966 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 967 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
968 | |
969 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 970 | if (items && gimme != G_VOID) { |
544f3153 GS |
971 | /* might need to make room back there first */ |
972 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
973 | /* XXX this implementation is very pessimal because the stack | |
974 | * is repeatedly extended for every set of items. Is possible | |
975 | * to do this without any stack extension or copying at all | |
976 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 977 | * (like foreach does). --gsar */ |
544f3153 GS |
978 | |
979 | /* everything in the stack after the destination list moves | |
980 | * towards the end the stack by the amount of room needed */ | |
981 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
982 | ||
983 | /* items to shift up (accounting for the moved source pointer) */ | |
984 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
985 | |
986 | /* This optimization is by Ben Tilly and it does | |
987 | * things differently from what Sarathy (gsar) | |
988 | * is describing. The downside of this optimization is | |
989 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
990 | * to the Perl stack, but on the other hand this | |
991 | * shouldn't be a problem. If Sarathy's idea gets | |
992 | * implemented, this optimization should become | |
993 | * irrelevant. --jhi */ | |
994 | if (shift < count) | |
995 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 996 | |
924508f0 GS |
997 | EXTEND(SP,shift); |
998 | src = SP; | |
999 | dst = (SP += shift); | |
3280af22 NIS |
1000 | PL_markstack_ptr[-1] += shift; |
1001 | *PL_markstack_ptr += shift; | |
544f3153 | 1002 | while (count--) |
a0d0e21e LW |
1003 | *dst-- = *src--; |
1004 | } | |
544f3153 | 1005 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1006 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1007 | if (gimme == G_ARRAY) { |
1008 | while (items-- > 0) | |
1009 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1010 | } | |
bfed75c6 | 1011 | else { |
22023b26 TP |
1012 | /* scalar context: we don't care about which values map returns |
1013 | * (we use undef here). And so we certainly don't want to do mortal | |
1014 | * copies of meaningless values. */ | |
1015 | while (items-- > 0) { | |
b988aa42 | 1016 | (void)POPs; |
22023b26 TP |
1017 | *dst-- = &PL_sv_undef; |
1018 | } | |
1019 | } | |
a0d0e21e LW |
1020 | } |
1021 | LEAVE; /* exit inner scope */ | |
1022 | ||
1023 | /* All done yet? */ | |
3280af22 | 1024 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1025 | |
1026 | (void)POPMARK; /* pop top */ | |
1027 | LEAVE; /* exit outer scope */ | |
1028 | (void)POPMARK; /* pop src */ | |
3280af22 | 1029 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1030 | (void)POPMARK; /* pop dst */ |
3280af22 | 1031 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1032 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1033 | if (PL_op->op_private & OPpGREP_LEX) { |
1034 | SV* sv = sv_newmortal(); | |
1035 | sv_setiv(sv, items); | |
1036 | PUSHs(sv); | |
1037 | } | |
1038 | else { | |
1039 | dTARGET; | |
1040 | XPUSHi(items); | |
1041 | } | |
a0d0e21e | 1042 | } |
54310121 | 1043 | else if (gimme == G_ARRAY) |
1044 | SP += items; | |
a0d0e21e LW |
1045 | RETURN; |
1046 | } | |
1047 | else { | |
1048 | SV *src; | |
1049 | ||
1050 | ENTER; /* enter inner scope */ | |
7766f137 | 1051 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1052 | |
544f3153 | 1053 | /* set $_ to the new source item */ |
3280af22 | 1054 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1055 | SvTEMP_off(src); |
59f00321 RGS |
1056 | if (PL_op->op_private & OPpGREP_LEX) |
1057 | PAD_SVl(PL_op->op_targ) = src; | |
1058 | else | |
1059 | DEFSV = src; | |
a0d0e21e LW |
1060 | |
1061 | RETURNOP(cLOGOP->op_other); | |
1062 | } | |
1063 | } | |
1064 | ||
a0d0e21e LW |
1065 | /* Range stuff. */ |
1066 | ||
1067 | PP(pp_range) | |
1068 | { | |
97aff369 | 1069 | dVAR; |
a0d0e21e | 1070 | if (GIMME == G_ARRAY) |
1a67a97c | 1071 | return NORMAL; |
538573f7 | 1072 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1073 | return cLOGOP->op_other; |
538573f7 | 1074 | else |
1a67a97c | 1075 | return NORMAL; |
a0d0e21e LW |
1076 | } |
1077 | ||
1078 | PP(pp_flip) | |
1079 | { | |
97aff369 | 1080 | dVAR; |
39644a26 | 1081 | dSP; |
a0d0e21e LW |
1082 | |
1083 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1084 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1085 | } |
1086 | else { | |
1087 | dTOPss; | |
44f8325f | 1088 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1089 | int flip = 0; |
790090df | 1090 | |
bfed75c6 | 1091 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1092 | if (GvIO(PL_last_in_gv)) { |
1093 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1094 | } | |
1095 | else { | |
fafc274c | 1096 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1097 | if (gv && GvSV(gv)) |
1098 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1099 | } |
bfed75c6 AL |
1100 | } else { |
1101 | flip = SvTRUE(sv); | |
1102 | } | |
1103 | if (flip) { | |
a0d0e21e | 1104 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1105 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1106 | sv_setiv(targ, 1); |
3e3baf6d | 1107 | SETs(targ); |
a0d0e21e LW |
1108 | RETURN; |
1109 | } | |
1110 | else { | |
1111 | sv_setiv(targ, 0); | |
924508f0 | 1112 | SP--; |
1a67a97c | 1113 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1114 | } |
1115 | } | |
c69006e4 | 1116 | sv_setpvn(TARG, "", 0); |
a0d0e21e LW |
1117 | SETs(targ); |
1118 | RETURN; | |
1119 | } | |
1120 | } | |
1121 | ||
8e9bbdb9 RGS |
1122 | /* This code tries to decide if "$left .. $right" should use the |
1123 | magical string increment, or if the range is numeric (we make | |
1124 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1125 | ||
1126 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1127 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1128 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1129 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1130 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1131 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1132 | |
a0d0e21e LW |
1133 | PP(pp_flop) |
1134 | { | |
97aff369 | 1135 | dVAR; dSP; |
a0d0e21e LW |
1136 | |
1137 | if (GIMME == G_ARRAY) { | |
1138 | dPOPPOPssrl; | |
86cb7173 | 1139 | |
5b295bef RD |
1140 | SvGETMAGIC(left); |
1141 | SvGETMAGIC(right); | |
a0d0e21e | 1142 | |
8e9bbdb9 | 1143 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1144 | register IV i, j; |
1145 | IV max; | |
4fe3f0fa MHM |
1146 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1147 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1148 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1149 | i = SvIV(left); |
1150 | max = SvIV(right); | |
bbce6d69 | 1151 | if (max >= i) { |
c1ab3db2 AK |
1152 | j = max - i + 1; |
1153 | EXTEND_MORTAL(j); | |
1154 | EXTEND(SP, j); | |
bbce6d69 | 1155 | } |
c1ab3db2 AK |
1156 | else |
1157 | j = 0; | |
1158 | while (j--) { | |
901017d6 | 1159 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1160 | PUSHs(sv); |
1161 | } | |
1162 | } | |
1163 | else { | |
44f8325f | 1164 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1165 | STRLEN len; |
823a54a3 | 1166 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1167 | |
901017d6 | 1168 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1169 | SvPV_force_nolen(sv); |
89ea2908 | 1170 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1171 | XPUSHs(sv); |
b15aece3 | 1172 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1173 | break; |
a0d0e21e LW |
1174 | sv = sv_2mortal(newSVsv(sv)); |
1175 | sv_inc(sv); | |
1176 | } | |
a0d0e21e LW |
1177 | } |
1178 | } | |
1179 | else { | |
1180 | dTOPss; | |
901017d6 | 1181 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1182 | int flop = 0; |
a0d0e21e | 1183 | sv_inc(targ); |
4e3399f9 YST |
1184 | |
1185 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1186 | if (GvIO(PL_last_in_gv)) { | |
1187 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1188 | } | |
1189 | else { | |
fafc274c | 1190 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1191 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1192 | } | |
1193 | } | |
1194 | else { | |
1195 | flop = SvTRUE(sv); | |
1196 | } | |
1197 | ||
1198 | if (flop) { | |
a0d0e21e | 1199 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1200 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1201 | } |
1202 | SETs(targ); | |
1203 | } | |
1204 | ||
1205 | RETURN; | |
1206 | } | |
1207 | ||
1208 | /* Control. */ | |
1209 | ||
27da23d5 | 1210 | static const char * const context_name[] = { |
515afda2 NC |
1211 | "pseudo-block", |
1212 | "subroutine", | |
1213 | "eval", | |
1214 | "loop", | |
1215 | "substitution", | |
1216 | "block", | |
0d863452 RH |
1217 | "format", |
1218 | "given", | |
1219 | "when" | |
515afda2 NC |
1220 | }; |
1221 | ||
76e3520e | 1222 | STATIC I32 |
06b5626a | 1223 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1224 | { |
97aff369 | 1225 | dVAR; |
a0d0e21e | 1226 | register I32 i; |
a0d0e21e LW |
1227 | |
1228 | for (i = cxstack_ix; i >= 0; i--) { | |
901017d6 | 1229 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1230 | switch (CxTYPE(cx)) { |
a0d0e21e | 1231 | case CXt_SUBST: |
a0d0e21e | 1232 | case CXt_SUB: |
7766f137 | 1233 | case CXt_FORMAT: |
a0d0e21e | 1234 | case CXt_EVAL: |
0a753a76 | 1235 | case CXt_NULL: |
0d863452 RH |
1236 | case CXt_GIVEN: |
1237 | case CXt_WHEN: | |
e476b1b5 | 1238 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1239 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1240 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1241 | if (CxTYPE(cx) == CXt_NULL) | |
1242 | return -1; | |
1243 | break; | |
a0d0e21e | 1244 | case CXt_LOOP: |
901017d6 | 1245 | if ( !cx->blk_loop.label || strNE(label, cx->blk_loop.label) ) { |
cea2e8a9 | 1246 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
68dc0745 | 1247 | (long)i, cx->blk_loop.label)); |
a0d0e21e LW |
1248 | continue; |
1249 | } | |
cea2e8a9 | 1250 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1251 | return i; |
1252 | } | |
1253 | } | |
1254 | return i; | |
1255 | } | |
1256 | ||
0d863452 RH |
1257 | |
1258 | ||
e50aee73 | 1259 | I32 |
864dbfa3 | 1260 | Perl_dowantarray(pTHX) |
e50aee73 | 1261 | { |
97aff369 | 1262 | dVAR; |
f54cb97a | 1263 | const I32 gimme = block_gimme(); |
54310121 | 1264 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1265 | } | |
1266 | ||
1267 | I32 | |
864dbfa3 | 1268 | Perl_block_gimme(pTHX) |
54310121 | 1269 | { |
97aff369 | 1270 | dVAR; |
06b5626a | 1271 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1272 | if (cxix < 0) |
46fc3d4c | 1273 | return G_VOID; |
e50aee73 | 1274 | |
54310121 | 1275 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1276 | case G_VOID: |
1277 | return G_VOID; | |
54310121 | 1278 | case G_SCALAR: |
e50aee73 | 1279 | return G_SCALAR; |
54310121 | 1280 | case G_ARRAY: |
1281 | return G_ARRAY; | |
1282 | default: | |
cea2e8a9 | 1283 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1284 | /* NOTREACHED */ |
1285 | return 0; | |
54310121 | 1286 | } |
e50aee73 AD |
1287 | } |
1288 | ||
78f9721b SM |
1289 | I32 |
1290 | Perl_is_lvalue_sub(pTHX) | |
1291 | { | |
97aff369 | 1292 | dVAR; |
06b5626a | 1293 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1294 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1295 | ||
cc8d50a7 NC |
1296 | if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1297 | return cxstack[cxix].blk_sub.lval; | |
78f9721b SM |
1298 | else |
1299 | return 0; | |
1300 | } | |
1301 | ||
76e3520e | 1302 | STATIC I32 |
cea2e8a9 | 1303 | S_dopoptosub(pTHX_ I32 startingblock) |
a0d0e21e | 1304 | { |
97aff369 | 1305 | dVAR; |
2c375eb9 GS |
1306 | return dopoptosub_at(cxstack, startingblock); |
1307 | } | |
1308 | ||
1309 | STATIC I32 | |
901017d6 | 1310 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1311 | { |
97aff369 | 1312 | dVAR; |
a0d0e21e | 1313 | I32 i; |
a0d0e21e | 1314 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1315 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1316 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1317 | default: |
1318 | continue; | |
1319 | case CXt_EVAL: | |
1320 | case CXt_SUB: | |
7766f137 | 1321 | case CXt_FORMAT: |
cea2e8a9 | 1322 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1323 | return i; |
1324 | } | |
1325 | } | |
1326 | return i; | |
1327 | } | |
1328 | ||
76e3520e | 1329 | STATIC I32 |
cea2e8a9 | 1330 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1331 | { |
97aff369 | 1332 | dVAR; |
a0d0e21e | 1333 | I32 i; |
a0d0e21e | 1334 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1335 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1336 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1337 | default: |
1338 | continue; | |
1339 | case CXt_EVAL: | |
cea2e8a9 | 1340 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1341 | return i; |
1342 | } | |
1343 | } | |
1344 | return i; | |
1345 | } | |
1346 | ||
76e3520e | 1347 | STATIC I32 |
cea2e8a9 | 1348 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1349 | { |
97aff369 | 1350 | dVAR; |
a0d0e21e | 1351 | I32 i; |
a0d0e21e | 1352 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1353 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1354 | switch (CxTYPE(cx)) { |
a0d0e21e | 1355 | case CXt_SUBST: |
a0d0e21e | 1356 | case CXt_SUB: |
7766f137 | 1357 | case CXt_FORMAT: |
a0d0e21e | 1358 | case CXt_EVAL: |
0a753a76 | 1359 | case CXt_NULL: |
e476b1b5 | 1360 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1361 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1362 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1363 | if ((CxTYPE(cx)) == CXt_NULL) | |
1364 | return -1; | |
1365 | break; | |
a0d0e21e | 1366 | case CXt_LOOP: |
cea2e8a9 | 1367 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1368 | return i; |
1369 | } | |
1370 | } | |
1371 | return i; | |
1372 | } | |
1373 | ||
0d863452 RH |
1374 | STATIC I32 |
1375 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1376 | { | |
97aff369 | 1377 | dVAR; |
0d863452 RH |
1378 | I32 i; |
1379 | for (i = startingblock; i >= 0; i--) { | |
1380 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1381 | switch (CxTYPE(cx)) { | |
1382 | default: | |
1383 | continue; | |
1384 | case CXt_GIVEN: | |
1385 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1386 | return i; | |
1387 | case CXt_LOOP: | |
1388 | if (CxFOREACHDEF(cx)) { | |
1389 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1390 | return i; | |
1391 | } | |
1392 | } | |
1393 | } | |
1394 | return i; | |
1395 | } | |
1396 | ||
1397 | STATIC I32 | |
1398 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1399 | { | |
97aff369 | 1400 | dVAR; |
0d863452 RH |
1401 | I32 i; |
1402 | for (i = startingblock; i >= 0; i--) { | |
1403 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1404 | switch (CxTYPE(cx)) { | |
1405 | default: | |
1406 | continue; | |
1407 | case CXt_WHEN: | |
1408 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1409 | return i; | |
1410 | } | |
1411 | } | |
1412 | return i; | |
1413 | } | |
1414 | ||
a0d0e21e | 1415 | void |
864dbfa3 | 1416 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1417 | { |
97aff369 | 1418 | dVAR; |
a0d0e21e LW |
1419 | I32 optype; |
1420 | ||
1421 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1422 | SV *sv; |
06b5626a | 1423 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1424 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1425 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1426 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1427 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1428 | case CXt_SUBST: |
1429 | POPSUBST(cx); | |
1430 | continue; /* not break */ | |
a0d0e21e | 1431 | case CXt_SUB: |
b0d9ce38 GS |
1432 | POPSUB(cx,sv); |
1433 | LEAVESUB(sv); | |
a0d0e21e LW |
1434 | break; |
1435 | case CXt_EVAL: | |
1436 | POPEVAL(cx); | |
1437 | break; | |
1438 | case CXt_LOOP: | |
1439 | POPLOOP(cx); | |
1440 | break; | |
0a753a76 | 1441 | case CXt_NULL: |
a0d0e21e | 1442 | break; |
7766f137 GS |
1443 | case CXt_FORMAT: |
1444 | POPFORMAT(cx); | |
1445 | break; | |
a0d0e21e | 1446 | } |
c90c0ff4 | 1447 | cxstack_ix--; |
a0d0e21e | 1448 | } |
1b6737cc | 1449 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1450 | } |
1451 | ||
5a844595 GS |
1452 | void |
1453 | Perl_qerror(pTHX_ SV *err) | |
1454 | { | |
97aff369 | 1455 | dVAR; |
5a844595 GS |
1456 | if (PL_in_eval) |
1457 | sv_catsv(ERRSV, err); | |
1458 | else if (PL_errors) | |
1459 | sv_catsv(PL_errors, err); | |
1460 | else | |
be2597df | 1461 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
5a844595 GS |
1462 | ++PL_error_count; |
1463 | } | |
1464 | ||
a0d0e21e | 1465 | OP * |
35a4481c | 1466 | Perl_die_where(pTHX_ const char *message, STRLEN msglen) |
a0d0e21e | 1467 | { |
27da23d5 | 1468 | dVAR; |
87582a92 | 1469 | |
3280af22 | 1470 | if (PL_in_eval) { |
a0d0e21e | 1471 | I32 cxix; |
a0d0e21e | 1472 | I32 gimme; |
a0d0e21e | 1473 | |
4e6ea2c3 | 1474 | if (message) { |
faef0170 | 1475 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1476 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1477 | SV * const err = ERRSV; |
c445ea15 | 1478 | const char *e = NULL; |
98eae8f5 | 1479 | if (!SvPOK(err)) |
c69006e4 | 1480 | sv_setpvn(err,"",0); |
98eae8f5 | 1481 | else if (SvCUR(err) >= sizeof(prefix)+msglen-1) { |
0510663f | 1482 | STRLEN len; |
349d4f2f | 1483 | e = SvPV_const(err, len); |
0510663f | 1484 | e += len - msglen; |
98eae8f5 | 1485 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1486 | e = NULL; |
98eae8f5 GS |
1487 | } |
1488 | if (!e) { | |
1489 | SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen); | |
1490 | sv_catpvn(err, prefix, sizeof(prefix)-1); | |
1491 | sv_catpvn(err, message, msglen); | |
e476b1b5 | 1492 | if (ckWARN(WARN_MISC)) { |
504618e9 | 1493 | const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1; |
b15aece3 | 1494 | Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX_const(err)+start); |
4e6ea2c3 | 1495 | } |
4633a7c4 | 1496 | } |
4633a7c4 | 1497 | } |
1aa99e6b | 1498 | else { |
06bf62c7 | 1499 | sv_setpvn(ERRSV, message, msglen); |
1aa99e6b | 1500 | } |
4633a7c4 | 1501 | } |
4e6ea2c3 | 1502 | |
5a844595 GS |
1503 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1504 | && PL_curstackinfo->si_prev) | |
1505 | { | |
bac4b2ad | 1506 | dounwind(-1); |
d3acc0f7 | 1507 | POPSTACK; |
bac4b2ad | 1508 | } |
e336de0d | 1509 | |
a0d0e21e LW |
1510 | if (cxix >= 0) { |
1511 | I32 optype; | |
35a4481c | 1512 | register PERL_CONTEXT *cx; |
901017d6 | 1513 | SV **newsp; |
a0d0e21e LW |
1514 | |
1515 | if (cxix < cxstack_ix) | |
1516 | dounwind(cxix); | |
1517 | ||
3280af22 | 1518 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1519 | if (CxTYPE(cx) != CXt_EVAL) { |
16869676 | 1520 | if (!message) |
349d4f2f | 1521 | message = SvPVx_const(ERRSV, msglen); |
10edeb5d | 1522 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1523 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1524 | my_exit(1); |
1525 | } | |
1526 | POPEVAL(cx); | |
1527 | ||
1528 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1529 | *++newsp = &PL_sv_undef; |
1530 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1531 | |
1532 | LEAVE; | |
748a9306 | 1533 | |
7fb6a879 GS |
1534 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1535 | * XXX it might be better to find a way to avoid messing with | |
1536 | * PL_curcop in save_re_context() instead, but this is a more | |
1537 | * minimal fix --GSAR */ | |
1538 | PL_curcop = cx->blk_oldcop; | |
1539 | ||
7a2e2cd6 | 1540 | if (optype == OP_REQUIRE) { |
44f8325f | 1541 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1542 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1543 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1544 | &PL_sv_undef, 0); |
5a844595 GS |
1545 | DIE(aTHX_ "%sCompilation failed in require", |
1546 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1547 | } |
f39bc417 DM |
1548 | assert(CxTYPE(cx) == CXt_EVAL); |
1549 | return cx->blk_eval.retop; | |
a0d0e21e LW |
1550 | } |
1551 | } | |
9cc2fdd3 | 1552 | if (!message) |
349d4f2f | 1553 | message = SvPVx_const(ERRSV, msglen); |
87582a92 | 1554 | |
7ff03255 | 1555 | write_to_stderr(message, msglen); |
f86702cc | 1556 | my_failure_exit(); |
1557 | /* NOTREACHED */ | |
a0d0e21e LW |
1558 | return 0; |
1559 | } | |
1560 | ||
1561 | PP(pp_xor) | |
1562 | { | |
97aff369 | 1563 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1564 | if (SvTRUE(left) != SvTRUE(right)) |
1565 | RETSETYES; | |
1566 | else | |
1567 | RETSETNO; | |
1568 | } | |
1569 | ||
a0d0e21e LW |
1570 | PP(pp_caller) |
1571 | { | |
97aff369 | 1572 | dVAR; |
39644a26 | 1573 | dSP; |
a0d0e21e | 1574 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1575 | register const PERL_CONTEXT *cx; |
1576 | register const PERL_CONTEXT *ccstack = cxstack; | |
1577 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1578 | I32 gimme; |
06b5626a | 1579 | const char *stashname; |
a0d0e21e LW |
1580 | I32 count = 0; |
1581 | ||
1582 | if (MAXARG) | |
1583 | count = POPi; | |
27d41816 | 1584 | |
a0d0e21e | 1585 | for (;;) { |
2c375eb9 GS |
1586 | /* we may be in a higher stacklevel, so dig down deeper */ |
1587 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1588 | top_si = top_si->si_prev; | |
1589 | ccstack = top_si->si_cxstack; | |
1590 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1591 | } | |
a0d0e21e | 1592 | if (cxix < 0) { |
27d41816 DM |
1593 | if (GIMME != G_ARRAY) { |
1594 | EXTEND(SP, 1); | |
a0d0e21e | 1595 | RETPUSHUNDEF; |
27d41816 | 1596 | } |
a0d0e21e LW |
1597 | RETURN; |
1598 | } | |
f2a7f298 DG |
1599 | /* caller() should not report the automatic calls to &DB::sub */ |
1600 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1601 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1602 | count++; |
1603 | if (!count--) | |
1604 | break; | |
2c375eb9 | 1605 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1606 | } |
2c375eb9 GS |
1607 | |
1608 | cx = &ccstack[cxix]; | |
7766f137 | 1609 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1610 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1611 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1612 | field below is defined for any cx. */ |
f2a7f298 DG |
1613 | /* caller() should not report the automatic calls to &DB::sub */ |
1614 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1615 | cx = &ccstack[dbcxix]; |
06a5b730 | 1616 | } |
1617 | ||
ed094faf | 1618 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1619 | if (GIMME != G_ARRAY) { |
27d41816 | 1620 | EXTEND(SP, 1); |
ed094faf | 1621 | if (!stashname) |
3280af22 | 1622 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1623 | else { |
1624 | dTARGET; | |
ed094faf | 1625 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1626 | PUSHs(TARG); |
1627 | } | |
a0d0e21e LW |
1628 | RETURN; |
1629 | } | |
a0d0e21e | 1630 | |
b3ca2e83 | 1631 | EXTEND(SP, 11); |
27d41816 | 1632 | |
ed094faf | 1633 | if (!stashname) |
3280af22 | 1634 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1635 | else |
ed094faf | 1636 | PUSHs(sv_2mortal(newSVpv(stashname, 0))); |
248c2a4d | 1637 | PUSHs(sv_2mortal(newSVpv(OutCopFILE(cx->blk_oldcop), 0))); |
57843af0 | 1638 | PUSHs(sv_2mortal(newSViv((I32)CopLINE(cx->blk_oldcop)))); |
a0d0e21e LW |
1639 | if (!MAXARG) |
1640 | RETURN; | |
7766f137 | 1641 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1642 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1643 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1644 | if (isGV(cvgv)) { |
561b68a9 | 1645 | SV * const sv = newSV(0); |
c445ea15 | 1646 | gv_efullname3(sv, cvgv, NULL); |
07b8c804 | 1647 | PUSHs(sv_2mortal(sv)); |
cc8d50a7 | 1648 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 RGS |
1649 | } |
1650 | else { | |
396482e1 | 1651 | PUSHs(sv_2mortal(newSVpvs("(unknown)"))); |
cc8d50a7 | 1652 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 | 1653 | } |
a0d0e21e LW |
1654 | } |
1655 | else { | |
396482e1 | 1656 | PUSHs(sv_2mortal(newSVpvs("(eval)"))); |
a0d0e21e LW |
1657 | PUSHs(sv_2mortal(newSViv(0))); |
1658 | } | |
54310121 | 1659 | gimme = (I32)cx->blk_gimme; |
1660 | if (gimme == G_VOID) | |
3280af22 | 1661 | PUSHs(&PL_sv_undef); |
54310121 | 1662 | else |
1663 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); | |
6b35e009 | 1664 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1665 | /* eval STRING */ |
06a5b730 | 1666 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 | 1667 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1668 | PUSHs(&PL_sv_no); |
0f79a09d | 1669 | } |
811a4de9 | 1670 | /* require */ |
0f79a09d GS |
1671 | else if (cx->blk_eval.old_namesv) { |
1672 | PUSHs(sv_2mortal(newSVsv(cx->blk_eval.old_namesv))); | |
3280af22 | 1673 | PUSHs(&PL_sv_yes); |
06a5b730 | 1674 | } |
811a4de9 GS |
1675 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1676 | else { | |
1677 | PUSHs(&PL_sv_undef); | |
1678 | PUSHs(&PL_sv_undef); | |
1679 | } | |
4633a7c4 | 1680 | } |
a682de96 GS |
1681 | else { |
1682 | PUSHs(&PL_sv_undef); | |
1683 | PUSHs(&PL_sv_undef); | |
1684 | } | |
cc8d50a7 | 1685 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs |
ed094faf | 1686 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1687 | { |
66a1b24b AL |
1688 | AV * const ary = cx->blk_sub.argarray; |
1689 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1690 | |
3280af22 | 1691 | if (!PL_dbargs) { |
71315bf2 | 1692 | GV* const tmpgv = gv_fetchpvs("DB::args", GV_ADD, SVt_PVAV); |
0bd48802 | 1693 | PL_dbargs = GvAV(gv_AVadd(tmpgv)); |
a5f75d66 | 1694 | GvMULTI_on(tmpgv); |
3ddcf04c | 1695 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1696 | } |
1697 | ||
3280af22 NIS |
1698 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1699 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1700 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1701 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1702 | } |
f3aa04c2 GS |
1703 | /* XXX only hints propagated via op_private are currently |
1704 | * visible (others are not easily accessible, since they | |
1705 | * use the global PL_hints) */ | |
623e6609 | 1706 | PUSHs(sv_2mortal(newSViv(CopHINTS_get(cx->blk_oldcop)))); |
e476b1b5 GS |
1707 | { |
1708 | SV * mask ; | |
72dc9ed5 | 1709 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1710 | |
ac27b0f5 | 1711 | if (old_warnings == pWARN_NONE || |
114bafba | 1712 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1713 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1714 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1715 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1716 | /* Get the bit mask for $warnings::Bits{all}, because | |
1717 | * it could have been extended by warnings::register */ | |
1718 | SV **bits_all; | |
0bd48802 | 1719 | HV * const bits = get_hv("warnings::Bits", FALSE); |
017a3ce5 | 1720 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1721 | mask = newSVsv(*bits_all); |
1722 | } | |
1723 | else { | |
1724 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1725 | } | |
1726 | } | |
e476b1b5 | 1727 | else |
72dc9ed5 | 1728 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
e476b1b5 GS |
1729 | PUSHs(sv_2mortal(mask)); |
1730 | } | |
b3ca2e83 | 1731 | |
c28fe1ec | 1732 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1733 | sv_2mortal(newRV_noinc( |
c28fe1ec NC |
1734 | (SV*)Perl_refcounted_he_chain_2hv(aTHX_ |
1735 | cx->blk_oldcop->cop_hints_hash))) | |
b3ca2e83 | 1736 | : &PL_sv_undef); |
a0d0e21e LW |
1737 | RETURN; |
1738 | } | |
1739 | ||
a0d0e21e LW |
1740 | PP(pp_reset) |
1741 | { | |
97aff369 | 1742 | dVAR; |
39644a26 | 1743 | dSP; |
10edeb5d | 1744 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1745 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1746 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1747 | RETURN; |
1748 | } | |
1749 | ||
dd2155a4 DM |
1750 | /* like pp_nextstate, but used instead when the debugger is active */ |
1751 | ||
a0d0e21e LW |
1752 | PP(pp_dbstate) |
1753 | { | |
27da23d5 | 1754 | dVAR; |
533c011a | 1755 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1756 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1757 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1758 | FREETMPS; |
1759 | ||
5df8de69 DM |
1760 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1761 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1762 | { |
39644a26 | 1763 | dSP; |
c09156bb | 1764 | register PERL_CONTEXT *cx; |
f54cb97a | 1765 | const I32 gimme = G_ARRAY; |
eb160463 | 1766 | U8 hasargs; |
0bd48802 AL |
1767 | GV * const gv = PL_DBgv; |
1768 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1769 | |
a0d0e21e | 1770 | if (!cv) |
cea2e8a9 | 1771 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1772 | |
aea4f609 DM |
1773 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1774 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1775 | return NORMAL; |
748a9306 | 1776 | |
4633a7c4 LW |
1777 | ENTER; |
1778 | SAVETMPS; | |
1779 | ||
3280af22 | 1780 | SAVEI32(PL_debug); |
55497cff | 1781 | SAVESTACK_POS(); |
3280af22 | 1782 | PL_debug = 0; |
748a9306 | 1783 | hasargs = 0; |
924508f0 | 1784 | SPAGAIN; |
748a9306 | 1785 | |
aed2304a | 1786 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1787 | CvDEPTH(cv)++; |
1788 | PUSHMARK(SP); | |
1789 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1790 | CvDEPTH(cv)--; | |
1791 | FREETMPS; | |
1792 | LEAVE; | |
1793 | return NORMAL; | |
1794 | } | |
1795 | else { | |
1796 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1797 | PUSHSUB_DB(cx); | |
1798 | cx->blk_sub.retop = PL_op->op_next; | |
1799 | CvDEPTH(cv)++; | |
1800 | SAVECOMPPAD(); | |
1801 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1802 | RETURNOP(CvSTART(cv)); | |
1803 | } | |
a0d0e21e LW |
1804 | } |
1805 | else | |
1806 | return NORMAL; | |
1807 | } | |
1808 | ||
a0d0e21e LW |
1809 | PP(pp_enteriter) |
1810 | { | |
27da23d5 | 1811 | dVAR; dSP; dMARK; |
c09156bb | 1812 | register PERL_CONTEXT *cx; |
f54cb97a | 1813 | const I32 gimme = GIMME_V; |
a0d0e21e | 1814 | SV **svp; |
df43650b | 1815 | U16 cxtype = CXt_LOOP | CXp_FOREACH; |
7766f137 GS |
1816 | #ifdef USE_ITHREADS |
1817 | void *iterdata; | |
1818 | #endif | |
a0d0e21e | 1819 | |
4633a7c4 LW |
1820 | ENTER; |
1821 | SAVETMPS; | |
1822 | ||
533c011a | 1823 | if (PL_op->op_targ) { |
14f338dc DM |
1824 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1825 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1826 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1827 | SVs_PADSTALE, SVs_PADSTALE); | |
1828 | } | |
c3564e5c | 1829 | #ifndef USE_ITHREADS |
dd2155a4 | 1830 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
54b9620d | 1831 | SAVESPTR(*svp); |
c3564e5c GS |
1832 | #else |
1833 | SAVEPADSV(PL_op->op_targ); | |
cbfa9890 | 1834 | iterdata = INT2PTR(void*, PL_op->op_targ); |
7766f137 GS |
1835 | cxtype |= CXp_PADVAR; |
1836 | #endif | |
54b9620d MB |
1837 | } |
1838 | else { | |
0bd48802 | 1839 | GV * const gv = (GV*)POPs; |
7766f137 | 1840 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1841 | SAVEGENERICSV(*svp); |
561b68a9 | 1842 | *svp = newSV(0); |
7766f137 GS |
1843 | #ifdef USE_ITHREADS |
1844 | iterdata = (void*)gv; | |
1845 | #endif | |
54b9620d | 1846 | } |
4633a7c4 | 1847 | |
0d863452 RH |
1848 | if (PL_op->op_private & OPpITER_DEF) |
1849 | cxtype |= CXp_FOR_DEF; | |
1850 | ||
a0d0e21e LW |
1851 | ENTER; |
1852 | ||
7766f137 GS |
1853 | PUSHBLOCK(cx, cxtype, SP); |
1854 | #ifdef USE_ITHREADS | |
1855 | PUSHLOOP(cx, iterdata, MARK); | |
1856 | #else | |
a0d0e21e | 1857 | PUSHLOOP(cx, svp, MARK); |
7766f137 | 1858 | #endif |
533c011a | 1859 | if (PL_op->op_flags & OPf_STACKED) { |
44a8e56a | 1860 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
89ea2908 GA |
1861 | if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) { |
1862 | dPOPss; | |
0bd48802 | 1863 | SV * const right = (SV*)cx->blk_loop.iterary; |
984a4bea RD |
1864 | SvGETMAGIC(sv); |
1865 | SvGETMAGIC(right); | |
4fe3f0fa MHM |
1866 | if (RANGE_IS_NUMERIC(sv,right)) { |
1867 | if ((SvOK(sv) && SvNV(sv) < IV_MIN) || | |
1868 | (SvOK(right) && SvNV(right) >= IV_MAX)) | |
076d9a11 MHM |
1869 | DIE(aTHX_ "Range iterator outside integer range"); |
1870 | cx->blk_loop.iterix = SvIV(sv); | |
4fe3f0fa | 1871 | cx->blk_loop.itermax = SvIV(right); |
d4665a05 DM |
1872 | #ifdef DEBUGGING |
1873 | /* for correct -Dstv display */ | |
1874 | cx->blk_oldsp = sp - PL_stack_base; | |
1875 | #endif | |
89ea2908 | 1876 | } |
3f63a782 | 1877 | else { |
89ea2908 | 1878 | cx->blk_loop.iterlval = newSVsv(sv); |
13c5b33c | 1879 | (void) SvPV_force_nolen(cx->blk_loop.iterlval); |
10516c54 | 1880 | (void) SvPV_nolen_const(right); |
3f63a782 | 1881 | } |
89ea2908 | 1882 | } |
ef3e5ea9 | 1883 | else if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1884 | cx->blk_loop.itermax = 0; |
1885 | cx->blk_loop.iterix = AvFILL(cx->blk_loop.iterary) + 1; | |
ef3e5ea9 NC |
1886 | |
1887 | } | |
89ea2908 | 1888 | } |
4633a7c4 | 1889 | else { |
3280af22 NIS |
1890 | cx->blk_loop.iterary = PL_curstack; |
1891 | AvFILLp(PL_curstack) = SP - PL_stack_base; | |
ef3e5ea9 | 1892 | if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1893 | cx->blk_loop.itermax = MARK - PL_stack_base + 1; |
1894 | cx->blk_loop.iterix = cx->blk_oldsp + 1; | |
ef3e5ea9 NC |
1895 | } |
1896 | else { | |
1897 | cx->blk_loop.iterix = MARK - PL_stack_base; | |
1898 | } | |
4633a7c4 | 1899 | } |
a0d0e21e LW |
1900 | |
1901 | RETURN; | |
1902 | } | |
1903 | ||
1904 | PP(pp_enterloop) | |
1905 | { | |
27da23d5 | 1906 | dVAR; dSP; |
c09156bb | 1907 | register PERL_CONTEXT *cx; |
f54cb97a | 1908 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
1909 | |
1910 | ENTER; | |
1911 | SAVETMPS; | |
1912 | ENTER; | |
1913 | ||
1914 | PUSHBLOCK(cx, CXt_LOOP, SP); | |
1915 | PUSHLOOP(cx, 0, SP); | |
1916 | ||
1917 | RETURN; | |
1918 | } | |
1919 | ||
1920 | PP(pp_leaveloop) | |
1921 | { | |
27da23d5 | 1922 | dVAR; dSP; |
c09156bb | 1923 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1924 | I32 gimme; |
1925 | SV **newsp; | |
1926 | PMOP *newpm; | |
1927 | SV **mark; | |
1928 | ||
1929 | POPBLOCK(cx,newpm); | |
3a1b2b9e | 1930 | assert(CxTYPE(cx) == CXt_LOOP); |
4fdae800 | 1931 | mark = newsp; |
a8bba7fa | 1932 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 1933 | |
a1f49e72 | 1934 | TAINT_NOT; |
54310121 | 1935 | if (gimme == G_VOID) |
6f207bd3 | 1936 | NOOP; |
54310121 | 1937 | else if (gimme == G_SCALAR) { |
1938 | if (mark < SP) | |
1939 | *++newsp = sv_mortalcopy(*SP); | |
1940 | else | |
3280af22 | 1941 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
1942 | } |
1943 | else { | |
a1f49e72 | 1944 | while (mark < SP) { |
a0d0e21e | 1945 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
1946 | TAINT_NOT; /* Each item is independent */ |
1947 | } | |
a0d0e21e | 1948 | } |
f86702cc | 1949 | SP = newsp; |
1950 | PUTBACK; | |
1951 | ||
a8bba7fa | 1952 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 1953 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 1954 | |
a0d0e21e LW |
1955 | LEAVE; |
1956 | LEAVE; | |
1957 | ||
f86702cc | 1958 | return NORMAL; |
a0d0e21e LW |
1959 | } |
1960 | ||
1961 | PP(pp_return) | |
1962 | { | |
27da23d5 | 1963 | dVAR; dSP; dMARK; |
c09156bb | 1964 | register PERL_CONTEXT *cx; |
f86702cc | 1965 | bool popsub2 = FALSE; |
b45de488 | 1966 | bool clear_errsv = FALSE; |
a0d0e21e LW |
1967 | I32 gimme; |
1968 | SV **newsp; | |
1969 | PMOP *newpm; | |
1970 | I32 optype = 0; | |
b0d9ce38 | 1971 | SV *sv; |
f39bc417 | 1972 | OP *retop; |
a0d0e21e | 1973 | |
0bd48802 AL |
1974 | const I32 cxix = dopoptosub(cxstack_ix); |
1975 | ||
9850bf21 RH |
1976 | if (cxix < 0) { |
1977 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
1978 | * sort block, which is a CXt_NULL | |
1979 | * not a CXt_SUB */ | |
1980 | dounwind(0); | |
d7507f74 RH |
1981 | PL_stack_base[1] = *PL_stack_sp; |
1982 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
1983 | return 0; |
1984 | } | |
9850bf21 RH |
1985 | else |
1986 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 1987 | } |
a0d0e21e LW |
1988 | if (cxix < cxstack_ix) |
1989 | dounwind(cxix); | |
1990 | ||
d7507f74 RH |
1991 | if (CxMULTICALL(&cxstack[cxix])) { |
1992 | gimme = cxstack[cxix].blk_gimme; | |
1993 | if (gimme == G_VOID) | |
1994 | PL_stack_sp = PL_stack_base; | |
1995 | else if (gimme == G_SCALAR) { | |
1996 | PL_stack_base[1] = *PL_stack_sp; | |
1997 | PL_stack_sp = PL_stack_base + 1; | |
1998 | } | |
9850bf21 | 1999 | return 0; |
d7507f74 | 2000 | } |
9850bf21 | 2001 | |
a0d0e21e | 2002 | POPBLOCK(cx,newpm); |
6b35e009 | 2003 | switch (CxTYPE(cx)) { |
a0d0e21e | 2004 | case CXt_SUB: |
f86702cc | 2005 | popsub2 = TRUE; |
f39bc417 | 2006 | retop = cx->blk_sub.retop; |
5dd42e15 | 2007 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2008 | break; |
2009 | case CXt_EVAL: | |
b45de488 GS |
2010 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2011 | clear_errsv = TRUE; | |
a0d0e21e | 2012 | POPEVAL(cx); |
f39bc417 | 2013 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2014 | if (CxTRYBLOCK(cx)) |
2015 | break; | |
067f92a0 | 2016 | lex_end(); |
748a9306 LW |
2017 | if (optype == OP_REQUIRE && |
2018 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2019 | { | |
54310121 | 2020 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2021 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2022 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 2023 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
748a9306 | 2024 | } |
a0d0e21e | 2025 | break; |
7766f137 GS |
2026 | case CXt_FORMAT: |
2027 | POPFORMAT(cx); | |
f39bc417 | 2028 | retop = cx->blk_sub.retop; |
7766f137 | 2029 | break; |
a0d0e21e | 2030 | default: |
cea2e8a9 | 2031 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2032 | } |
2033 | ||
a1f49e72 | 2034 | TAINT_NOT; |
a0d0e21e | 2035 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2036 | if (MARK < SP) { |
2037 | if (popsub2) { | |
a8bba7fa | 2038 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2039 | if (SvTEMP(TOPs)) { |
2040 | *++newsp = SvREFCNT_inc(*SP); | |
2041 | FREETMPS; | |
2042 | sv_2mortal(*newsp); | |
959e3673 GS |
2043 | } |
2044 | else { | |
2045 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2046 | FREETMPS; |
959e3673 GS |
2047 | *++newsp = sv_mortalcopy(sv); |
2048 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2049 | } |
959e3673 GS |
2050 | } |
2051 | else | |
a29cdaf0 | 2052 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2053 | } |
2054 | else | |
a29cdaf0 | 2055 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2056 | } |
2057 | else | |
3280af22 | 2058 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2059 | } |
54310121 | 2060 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2061 | while (++MARK <= SP) { |
f86702cc | 2062 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2063 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2064 | TAINT_NOT; /* Each item is independent */ |
2065 | } | |
a0d0e21e | 2066 | } |
3280af22 | 2067 | PL_stack_sp = newsp; |
a0d0e21e | 2068 | |
5dd42e15 | 2069 | LEAVE; |
f86702cc | 2070 | /* Stack values are safe: */ |
2071 | if (popsub2) { | |
5dd42e15 | 2072 | cxstack_ix--; |
b0d9ce38 | 2073 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2074 | } |
b0d9ce38 | 2075 | else |
c445ea15 | 2076 | sv = NULL; |
3280af22 | 2077 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2078 | |
b0d9ce38 | 2079 | LEAVESUB(sv); |
b45de488 | 2080 | if (clear_errsv) |
c69006e4 | 2081 | sv_setpvn(ERRSV,"",0); |
f39bc417 | 2082 | return retop; |
a0d0e21e LW |
2083 | } |
2084 | ||
2085 | PP(pp_last) | |
2086 | { | |
27da23d5 | 2087 | dVAR; dSP; |
a0d0e21e | 2088 | I32 cxix; |
c09156bb | 2089 | register PERL_CONTEXT *cx; |
f86702cc | 2090 | I32 pop2 = 0; |
a0d0e21e | 2091 | I32 gimme; |
8772537c | 2092 | I32 optype; |
a0d0e21e LW |
2093 | OP *nextop; |
2094 | SV **newsp; | |
2095 | PMOP *newpm; | |
a8bba7fa | 2096 | SV **mark; |
c445ea15 | 2097 | SV *sv = NULL; |
9d4ba2ae | 2098 | |
a0d0e21e | 2099 | |
533c011a | 2100 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2101 | cxix = dopoptoloop(cxstack_ix); |
2102 | if (cxix < 0) | |
a651a37d | 2103 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2104 | } |
2105 | else { | |
2106 | cxix = dopoptolabel(cPVOP->op_pv); | |
2107 | if (cxix < 0) | |
cea2e8a9 | 2108 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2109 | } |
2110 | if (cxix < cxstack_ix) | |
2111 | dounwind(cxix); | |
2112 | ||
2113 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2114 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2115 | mark = newsp; |
6b35e009 | 2116 | switch (CxTYPE(cx)) { |
a0d0e21e | 2117 | case CXt_LOOP: |
f86702cc | 2118 | pop2 = CXt_LOOP; |
a8bba7fa | 2119 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2120 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2121 | break; |
f86702cc | 2122 | case CXt_SUB: |
f86702cc | 2123 | pop2 = CXt_SUB; |
f39bc417 | 2124 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2125 | break; |
f86702cc | 2126 | case CXt_EVAL: |
2127 | POPEVAL(cx); | |
f39bc417 | 2128 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2129 | break; |
7766f137 GS |
2130 | case CXt_FORMAT: |
2131 | POPFORMAT(cx); | |
f39bc417 | 2132 | nextop = cx->blk_sub.retop; |
7766f137 | 2133 | break; |
a0d0e21e | 2134 | default: |
cea2e8a9 | 2135 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2136 | } |
2137 | ||
a1f49e72 | 2138 | TAINT_NOT; |
a0d0e21e | 2139 | if (gimme == G_SCALAR) { |
f86702cc | 2140 | if (MARK < SP) |
2141 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2142 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2143 | else |
3280af22 | 2144 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2145 | } |
54310121 | 2146 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2147 | while (++MARK <= SP) { |
f86702cc | 2148 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2149 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2150 | TAINT_NOT; /* Each item is independent */ |
2151 | } | |
f86702cc | 2152 | } |
2153 | SP = newsp; | |
2154 | PUTBACK; | |
2155 | ||
5dd42e15 DM |
2156 | LEAVE; |
2157 | cxstack_ix--; | |
f86702cc | 2158 | /* Stack values are safe: */ |
2159 | switch (pop2) { | |
2160 | case CXt_LOOP: | |
a8bba7fa | 2161 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2162 | LEAVE; |
f86702cc | 2163 | break; |
2164 | case CXt_SUB: | |
b0d9ce38 | 2165 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2166 | break; |
a0d0e21e | 2167 | } |
3280af22 | 2168 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2169 | |
b0d9ce38 | 2170 | LEAVESUB(sv); |
9d4ba2ae AL |
2171 | PERL_UNUSED_VAR(optype); |
2172 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2173 | return nextop; |
a0d0e21e LW |
2174 | } |
2175 | ||
2176 | PP(pp_next) | |
2177 | { | |
27da23d5 | 2178 | dVAR; |
a0d0e21e | 2179 | I32 cxix; |
c09156bb | 2180 | register PERL_CONTEXT *cx; |
85538317 | 2181 | I32 inner; |
a0d0e21e | 2182 | |
533c011a | 2183 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2184 | cxix = dopoptoloop(cxstack_ix); |
2185 | if (cxix < 0) | |
a651a37d | 2186 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2187 | } |
2188 | else { | |
2189 | cxix = dopoptolabel(cPVOP->op_pv); | |
2190 | if (cxix < 0) | |
cea2e8a9 | 2191 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2192 | } |
2193 | if (cxix < cxstack_ix) | |
2194 | dounwind(cxix); | |
2195 | ||
85538317 GS |
2196 | /* clear off anything above the scope we're re-entering, but |
2197 | * save the rest until after a possible continue block */ | |
2198 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2199 | TOPBLOCK(cx); |
85538317 GS |
2200 | if (PL_scopestack_ix < inner) |
2201 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2202 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2203 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2204 | } |
2205 | ||
2206 | PP(pp_redo) | |
2207 | { | |
27da23d5 | 2208 | dVAR; |
a0d0e21e | 2209 | I32 cxix; |
c09156bb | 2210 | register PERL_CONTEXT *cx; |
a0d0e21e | 2211 | I32 oldsave; |
a034e688 | 2212 | OP* redo_op; |
a0d0e21e | 2213 | |
533c011a | 2214 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2215 | cxix = dopoptoloop(cxstack_ix); |
2216 | if (cxix < 0) | |
a651a37d | 2217 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2218 | } |
2219 | else { | |
2220 | cxix = dopoptolabel(cPVOP->op_pv); | |
2221 | if (cxix < 0) | |
cea2e8a9 | 2222 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2223 | } |
2224 | if (cxix < cxstack_ix) | |
2225 | dounwind(cxix); | |
2226 | ||
022eaa24 | 2227 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2228 | if (redo_op->op_type == OP_ENTER) { |
2229 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2230 | cxstack_ix++; | |
2231 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2232 | redo_op = redo_op->op_next; | |
2233 | } | |
2234 | ||
a0d0e21e | 2235 | TOPBLOCK(cx); |
3280af22 | 2236 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2237 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2238 | FREETMPS; |
3a1b2b9e | 2239 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2240 | return redo_op; |
a0d0e21e LW |
2241 | } |
2242 | ||
0824fdcb | 2243 | STATIC OP * |
bfed75c6 | 2244 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2245 | { |
97aff369 | 2246 | dVAR; |
a0d0e21e | 2247 | OP **ops = opstack; |
bfed75c6 | 2248 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2249 | |
fc36a67e | 2250 | if (ops >= oplimit) |
cea2e8a9 | 2251 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2252 | if (o->op_type == OP_LEAVE || |
2253 | o->op_type == OP_SCOPE || | |
2254 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2255 | o->op_type == OP_LEAVESUB || |
11343788 | 2256 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2257 | { |
5dc0d613 | 2258 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2259 | if (ops >= oplimit) |
cea2e8a9 | 2260 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2261 | } |
c4aa4e48 | 2262 | *ops = 0; |
11343788 | 2263 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2264 | OP *kid; |
a0d0e21e | 2265 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2266 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 GS |
2267 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
2268 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) | |
a0d0e21e LW |
2269 | return kid; |
2270 | } | |
11343788 | 2271 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2272 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2273 | continue; |
ed8d0fe2 SM |
2274 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2275 | if (ops == opstack) | |
2276 | *ops++ = kid; | |
2277 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2278 | ops[-1]->op_type == OP_DBSTATE) | |
2279 | ops[-1] = kid; | |
2280 | else | |
2281 | *ops++ = kid; | |
2282 | } | |
155aba94 | 2283 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2284 | return o; |
a0d0e21e LW |
2285 | } |
2286 | } | |
c4aa4e48 | 2287 | *ops = 0; |
a0d0e21e LW |
2288 | return 0; |
2289 | } | |
2290 | ||
a0d0e21e LW |
2291 | PP(pp_goto) |
2292 | { | |
27da23d5 | 2293 | dVAR; dSP; |
cbbf8932 | 2294 | OP *retop = NULL; |
a0d0e21e | 2295 | I32 ix; |
c09156bb | 2296 | register PERL_CONTEXT *cx; |
fc36a67e | 2297 | #define GOTO_DEPTH 64 |
2298 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2299 | const char *label = NULL; |
bfed75c6 AL |
2300 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2301 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2302 | |
533c011a | 2303 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2304 | SV * const sv = POPs; |
a0d0e21e LW |
2305 | |
2306 | /* This egregious kludge implements goto &subroutine */ | |
2307 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2308 | I32 cxix; | |
c09156bb | 2309 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2310 | CV* cv = (CV*)SvRV(sv); |
2311 | SV** mark; | |
2312 | I32 items = 0; | |
2313 | I32 oldsave; | |
b1464ded | 2314 | bool reified = 0; |
a0d0e21e | 2315 | |
e8f7dd13 | 2316 | retry: |
4aa0a1f7 | 2317 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2318 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2319 | if (gv) { |
7fc63493 | 2320 | GV *autogv; |
e8f7dd13 GS |
2321 | SV *tmpstr; |
2322 | /* autoloaded stub? */ | |
2323 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2324 | goto retry; | |
2325 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2326 | GvNAMELEN(gv), FALSE); | |
2327 | if (autogv && (cv = GvCV(autogv))) | |
2328 | goto retry; | |
2329 | tmpstr = sv_newmortal(); | |
c445ea15 | 2330 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2331 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2332 | } |
cea2e8a9 | 2333 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2334 | } |
2335 | ||
a0d0e21e | 2336 | /* First do some returnish stuff. */ |
b37c2d43 | 2337 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2338 | FREETMPS; |
a0d0e21e LW |
2339 | cxix = dopoptosub(cxstack_ix); |
2340 | if (cxix < 0) | |
cea2e8a9 | 2341 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2342 | if (cxix < cxstack_ix) |
2343 | dounwind(cxix); | |
2344 | TOPBLOCK(cx); | |
2d43a17f | 2345 | SPAGAIN; |
564abe23 | 2346 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2347 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2348 | if (CxREALEVAL(cx)) |
2349 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2350 | else | |
2351 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2352 | } |
9850bf21 RH |
2353 | else if (CxMULTICALL(cx)) |
2354 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
cc8d50a7 | 2355 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) { |
d8b46c1b | 2356 | /* put @_ back onto stack */ |
a0d0e21e | 2357 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2358 | |
93965878 | 2359 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2360 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2361 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2362 | SvREFCNT_dec(GvAV(PL_defgv)); |
2363 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2364 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2365 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2366 | if (AvREAL(av)) { |
b1464ded DM |
2367 | reified = 1; |
2368 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2369 | av = newAV(); |
2370 | av_extend(av, items-1); | |
11ca45c0 | 2371 | AvREIFY_only(av); |
dd2155a4 | 2372 | PAD_SVl(0) = (SV*)(cx->blk_sub.argarray = av); |
62b1ebc2 | 2373 | } |
a0d0e21e | 2374 | } |
aed2304a | 2375 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2376 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2377 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2378 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2379 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2380 | } |
a45cdc79 DM |
2381 | mark = SP; |
2382 | SP += items; | |
6b35e009 | 2383 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2384 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2385 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2386 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2387 | LEAVE_SCOPE(oldsave); |
2388 | ||
2389 | /* Now do some callish stuff. */ | |
2390 | SAVETMPS; | |
5023d17a | 2391 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2392 | if (CvISXSUB(cv)) { |
b37c2d43 | 2393 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2394 | SV **newsp; |
2395 | I32 gimme; | |
b1464ded DM |
2396 | if (reified) { |
2397 | I32 index; | |
2398 | for (index=0; index<items; index++) | |
2399 | sv_2mortal(SP[-index]); | |
2400 | } | |
1fa4e549 | 2401 | |
b37c2d43 AL |
2402 | /* XS subs don't have a CxSUB, so pop it */ |
2403 | POPBLOCK(cx, PL_curpm); | |
2404 | /* Push a mark for the start of arglist */ | |
2405 | PUSHMARK(mark); | |
2406 | PUTBACK; | |
2407 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2408 | LEAVE; |
5eff7df7 | 2409 | return retop; |
a0d0e21e LW |
2410 | } |
2411 | else { | |
b37c2d43 | 2412 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2413 | if (CxTYPE(cx) == CXt_EVAL) { |
3280af22 NIS |
2414 | PL_in_eval = cx->blk_eval.old_in_eval; |
2415 | PL_eval_root = cx->blk_eval.old_eval_root; | |
b150fb22 | 2416 | cx->cx_type = CXt_SUB; |
cc8d50a7 | 2417 | cx->blk_sub.hasargs = 0; |
b150fb22 | 2418 | } |
a0d0e21e | 2419 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2420 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2421 | |
a0d0e21e LW |
2422 | CvDEPTH(cv)++; |
2423 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2424 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2425 | else { |
599cee73 | 2426 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION)) |
44a8e56a | 2427 | sub_crush_depth(cv); |
26019298 | 2428 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2429 | } |
fd617465 DM |
2430 | SAVECOMPPAD(); |
2431 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
cc8d50a7 | 2432 | if (cx->blk_sub.hasargs) |
6d4ff0d2 | 2433 | { |
b37c2d43 | 2434 | AV* const av = (AV*)PAD_SVl(0); |
a0d0e21e | 2435 | |
3280af22 | 2436 | cx->blk_sub.savearray = GvAV(PL_defgv); |
b37c2d43 | 2437 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc_simple(av); |
dd2155a4 | 2438 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2439 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2440 | |
2441 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2442 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2443 | if (AvARRAY(av) != ary) { |
2444 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2445 | AvARRAY(av) = ary; |
a0d0e21e LW |
2446 | } |
2447 | if (items >= AvMAX(av) + 1) { | |
2448 | AvMAX(av) = items - 1; | |
2449 | Renew(ary,items+1,SV*); | |
2450 | AvALLOC(av) = ary; | |
9c6bc640 | 2451 | AvARRAY(av) = ary; |
a0d0e21e LW |
2452 | } |
2453 | } | |
a45cdc79 | 2454 | ++mark; |
a0d0e21e | 2455 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2456 | AvFILLp(av) = items - 1; |
d8b46c1b | 2457 | assert(!AvREAL(av)); |
b1464ded DM |
2458 | if (reified) { |
2459 | /* transfer 'ownership' of refcnts to new @_ */ | |
2460 | AvREAL_on(av); | |
2461 | AvREIFY_off(av); | |
2462 | } | |
a0d0e21e LW |
2463 | while (items--) { |
2464 | if (*mark) | |
2465 | SvTEMP_off(*mark); | |
2466 | mark++; | |
2467 | } | |
2468 | } | |
491527d0 | 2469 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2470 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 AL |
2471 | if (PERLDB_GOTO) { |
2472 | CV * const gotocv = get_cv("DB::goto", FALSE); | |
2473 | if (gotocv) { | |
2474 | PUSHMARK( PL_stack_sp ); | |
2475 | call_sv((SV*)gotocv, G_SCALAR | G_NODEBUG); | |
2476 | PL_stack_sp--; | |
2477 | } | |
491527d0 | 2478 | } |
1ce6579f | 2479 | } |
a0d0e21e LW |
2480 | RETURNOP(CvSTART(cv)); |
2481 | } | |
2482 | } | |
1614b0e3 | 2483 | else { |
0510663f | 2484 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2485 | if (!(do_dump || *label)) |
cea2e8a9 | 2486 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2487 | } |
a0d0e21e | 2488 | } |
533c011a | 2489 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2490 | if (! do_dump) |
cea2e8a9 | 2491 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2492 | } |
2493 | else | |
2494 | label = cPVOP->op_pv; | |
2495 | ||
2496 | if (label && *label) { | |
cbbf8932 | 2497 | OP *gotoprobe = NULL; |
3b2447bc | 2498 | bool leaving_eval = FALSE; |
33d34e4c | 2499 | bool in_block = FALSE; |
cbbf8932 | 2500 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2501 | |
2502 | /* find label */ | |
2503 | ||
d4c19fe8 | 2504 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2505 | *enterops = 0; |
2506 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2507 | cx = &cxstack[ix]; | |
6b35e009 | 2508 | switch (CxTYPE(cx)) { |
a0d0e21e | 2509 | case CXt_EVAL: |
3b2447bc | 2510 | leaving_eval = TRUE; |
971ecbe6 | 2511 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2512 | gotoprobe = (last_eval_cx ? |
2513 | last_eval_cx->blk_eval.old_eval_root : | |
2514 | PL_eval_root); | |
2515 | last_eval_cx = cx; | |
9c5794fe RH |
2516 | break; |
2517 | } | |
2518 | /* else fall through */ | |
a0d0e21e LW |
2519 | case CXt_LOOP: |
2520 | gotoprobe = cx->blk_oldcop->op_sibling; | |
2521 | break; | |
2522 | case CXt_SUBST: | |
2523 | continue; | |
2524 | case CXt_BLOCK: | |
33d34e4c | 2525 | if (ix) { |
a0d0e21e | 2526 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2527 | in_block = TRUE; |
2528 | } else | |
3280af22 | 2529 | gotoprobe = PL_main_root; |
a0d0e21e | 2530 | break; |
b3933176 | 2531 | case CXt_SUB: |
9850bf21 | 2532 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2533 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2534 | break; | |
2535 | } | |
2536 | /* FALL THROUGH */ | |
7766f137 | 2537 | case CXt_FORMAT: |
0a753a76 | 2538 | case CXt_NULL: |
a651a37d | 2539 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2540 | default: |
2541 | if (ix) | |
cea2e8a9 | 2542 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2543 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2544 | break; |
2545 | } | |
2b597662 GS |
2546 | if (gotoprobe) { |
2547 | retop = dofindlabel(gotoprobe, label, | |
2548 | enterops, enterops + GOTO_DEPTH); | |
2549 | if (retop) | |
2550 | break; | |
2551 | } | |
3280af22 | 2552 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2553 | } |
2554 | if (!retop) | |
cea2e8a9 | 2555 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2556 | |
3b2447bc RH |
2557 | /* if we're leaving an eval, check before we pop any frames |
2558 | that we're not going to punt, otherwise the error | |
2559 | won't be caught */ | |
2560 | ||
2561 | if (leaving_eval && *enterops && enterops[1]) { | |
2562 | I32 i; | |
2563 | for (i = 1; enterops[i]; i++) | |
2564 | if (enterops[i]->op_type == OP_ENTERITER) | |
2565 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2566 | } | |
2567 | ||
a0d0e21e LW |
2568 | /* pop unwanted frames */ |
2569 | ||
2570 | if (ix < cxstack_ix) { | |
2571 | I32 oldsave; | |
2572 | ||
2573 | if (ix < 0) | |
2574 | ix = 0; | |
2575 | dounwind(ix); | |
2576 | TOPBLOCK(cx); | |
3280af22 | 2577 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2578 | LEAVE_SCOPE(oldsave); |
2579 | } | |
2580 | ||
2581 | /* push wanted frames */ | |
2582 | ||
748a9306 | 2583 | if (*enterops && enterops[1]) { |
0bd48802 | 2584 | OP * const oldop = PL_op; |
33d34e4c AE |
2585 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2586 | for (; enterops[ix]; ix++) { | |
533c011a | 2587 | PL_op = enterops[ix]; |
84902520 TB |
2588 | /* Eventually we may want to stack the needed arguments |
2589 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2590 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2591 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2592 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2593 | } |
533c011a | 2594 | PL_op = oldop; |
a0d0e21e LW |
2595 | } |
2596 | } | |
2597 | ||
2598 | if (do_dump) { | |
a5f75d66 | 2599 | #ifdef VMS |
6b88bc9c | 2600 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2601 | #endif |
3280af22 NIS |
2602 | PL_restartop = retop; |
2603 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2604 | |
2605 | my_unexec(); | |
2606 | ||
3280af22 NIS |
2607 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2608 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2609 | } |
2610 | ||
2611 | RETURNOP(retop); | |
2612 | } | |
2613 | ||
2614 | PP(pp_exit) | |
2615 | { | |
97aff369 | 2616 | dVAR; |
39644a26 | 2617 | dSP; |
a0d0e21e LW |
2618 | I32 anum; |
2619 | ||
2620 | if (MAXARG < 1) | |
2621 | anum = 0; | |
ff0cee69 | 2622 | else { |
a0d0e21e | 2623 | anum = SvIVx(POPs); |
d98f61e7 GS |
2624 | #ifdef VMS |
2625 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2626 | anum = 0; |
96e176bf | 2627 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2628 | #endif |
2629 | } | |
cc3604b1 | 2630 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2631 | #ifdef PERL_MAD |
2632 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2633 | if (anum || !(PL_minus_c && PL_madskills)) | |
2634 | my_exit(anum); | |
2635 | #else | |
a0d0e21e | 2636 | my_exit(anum); |
81d86705 | 2637 | #endif |
3280af22 | 2638 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2639 | RETURN; |
2640 | } | |
2641 | ||
a0d0e21e LW |
2642 | /* Eval. */ |
2643 | ||
0824fdcb | 2644 | STATIC void |
cea2e8a9 | 2645 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2646 | { |
504618e9 | 2647 | const char *s = SvPVX_const(sv); |
890ce7af | 2648 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2649 | I32 line = 1; |
a0d0e21e LW |
2650 | |
2651 | while (s && s < send) { | |
f54cb97a | 2652 | const char *t; |
b9f83d2f | 2653 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2654 | |
a0d0e21e LW |
2655 | t = strchr(s, '\n'); |
2656 | if (t) | |
2657 | t++; | |
2658 | else | |
2659 | t = send; | |
2660 | ||
2661 | sv_setpvn(tmpstr, s, t - s); | |
2662 | av_store(array, line++, tmpstr); | |
2663 | s = t; | |
2664 | } | |
2665 | } | |
2666 | ||
901017d6 | 2667 | STATIC void |
14dd3ad8 GS |
2668 | S_docatch_body(pTHX) |
2669 | { | |
97aff369 | 2670 | dVAR; |
cea2e8a9 | 2671 | CALLRUNOPS(aTHX); |
901017d6 | 2672 | return; |
312caa8e CS |
2673 | } |
2674 | ||
0824fdcb | 2675 | STATIC OP * |
cea2e8a9 | 2676 | S_docatch(pTHX_ OP *o) |
1e422769 | 2677 | { |
97aff369 | 2678 | dVAR; |
6224f72b | 2679 | int ret; |
06b5626a | 2680 | OP * const oldop = PL_op; |
db36c5a1 | 2681 | dJMPENV; |
1e422769 | 2682 | |
1e422769 | 2683 | #ifdef DEBUGGING |
54310121 | 2684 | assert(CATCH_GET == TRUE); |
1e422769 | 2685 | #endif |
312caa8e | 2686 | PL_op = o; |
8bffa5f8 | 2687 | |
14dd3ad8 | 2688 | JMPENV_PUSH(ret); |
6224f72b | 2689 | switch (ret) { |
312caa8e | 2690 | case 0: |
abd70938 DM |
2691 | assert(cxstack_ix >= 0); |
2692 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2693 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 GS |
2694 | redo_body: |
2695 | docatch_body(); | |
312caa8e CS |
2696 | break; |
2697 | case 3: | |
8bffa5f8 | 2698 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2699 | |
2700 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2701 | * of the stack; the way die_where() currently works, this | |
2702 | * assumption is valid. In theory The cur_top_env value should be | |
2703 | * returned in another global, the way retop (aka PL_restartop) | |
2704 | * is. */ | |
2705 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2706 | ||
2707 | if (PL_restartop | |
2708 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2709 | { | |
312caa8e CS |
2710 | PL_op = PL_restartop; |
2711 | PL_restartop = 0; | |
2712 | goto redo_body; | |
2713 | } | |
2714 | /* FALL THROUGH */ | |
2715 | default: | |
14dd3ad8 | 2716 | JMPENV_POP; |
533c011a | 2717 | PL_op = oldop; |
6224f72b | 2718 | JMPENV_JUMP(ret); |
1e422769 | 2719 | /* NOTREACHED */ |
1e422769 | 2720 | } |
14dd3ad8 | 2721 | JMPENV_POP; |
533c011a | 2722 | PL_op = oldop; |
5f66b61c | 2723 | return NULL; |
1e422769 | 2724 | } |
2725 | ||
c277df42 | 2726 | OP * |
bfed75c6 | 2727 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2728 | /* sv Text to convert to OP tree. */ |
2729 | /* startop op_free() this to undo. */ | |
2730 | /* code Short string id of the caller. */ | |
2731 | { | |
f7997f86 | 2732 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2733 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2734 | PERL_CONTEXT *cx; |
2735 | SV **newsp; | |
b094c71d | 2736 | I32 gimme = G_VOID; |
c277df42 IZ |
2737 | I32 optype; |
2738 | OP dummy; | |
155aba94 | 2739 | OP *rop; |
83ee9e09 GS |
2740 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2741 | char *tmpbuf = tbuf; | |
c277df42 | 2742 | char *safestr; |
a3985cdc | 2743 | int runtime; |
601f1833 | 2744 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2745 | STRLEN len; |
c277df42 IZ |
2746 | |
2747 | ENTER; | |
2748 | lex_start(sv); | |
2749 | SAVETMPS; | |
2750 | /* switch to eval mode */ | |
2751 | ||
923e4eb5 | 2752 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2753 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2754 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2755 | } |
83ee9e09 | 2756 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2757 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2758 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2759 | code, (unsigned long)++PL_evalseq, | |
2760 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2761 | tmpbuf = SvPVX(sv); | |
fc009855 | 2762 | len = SvCUR(sv); |
83ee9e09 GS |
2763 | } |
2764 | else | |
d9fad198 JH |
2765 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2766 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2767 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2768 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2769 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2770 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2771 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2772 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2773 | (i.e. before run-time proper). To work around the coredump that | |
2774 | ensues, we always turn GvMULTI_on for any globals that were | |
2775 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2776 | safestr = savepvn(tmpbuf, len); |
2777 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2778 | SAVEHINTS(); |
d1ca3daa | 2779 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2780 | PL_opsave = op; |
d1ca3daa | 2781 | #else |
7766f137 | 2782 | SAVEVPTR(PL_op); |
d1ca3daa | 2783 | #endif |
c277df42 | 2784 | |
a3985cdc | 2785 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2786 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2787 | if (runtime) |
d819b83a | 2788 | runcv = find_runcv(NULL); |
a3985cdc | 2789 | |
533c011a | 2790 | PL_op = &dummy; |
13b51b79 | 2791 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2792 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2793 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
a0714e2c | 2794 | PUSHEVAL(cx, 0, NULL); |
a3985cdc DM |
2795 | |
2796 | if (runtime) | |
2797 | rop = doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); | |
2798 | else | |
2799 | rop = doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); | |
13b51b79 | 2800 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2801 | POPEVAL(cx); |
c277df42 IZ |
2802 | |
2803 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2804 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2805 | lex_end(); |
f3548bdc | 2806 | /* XXX DAPM do this properly one year */ |
b37c2d43 | 2807 | *padp = (AV*)SvREFCNT_inc_simple(PL_comppad); |
c277df42 | 2808 | LEAVE; |
923e4eb5 | 2809 | if (IN_PERL_COMPILETIME) |
623e6609 | 2810 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2811 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2812 | op = PL_opsave; |
d1ca3daa | 2813 | #endif |
9d4ba2ae AL |
2814 | PERL_UNUSED_VAR(newsp); |
2815 | PERL_UNUSED_VAR(optype); | |
2816 | ||
c277df42 IZ |
2817 | return rop; |
2818 | } | |
2819 | ||
a3985cdc DM |
2820 | |
2821 | /* | |
2822 | =for apidoc find_runcv | |
2823 | ||
2824 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2825 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2826 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2827 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2828 | than in the scope of the debugger itself). |
a3985cdc DM |
2829 | |
2830 | =cut | |
2831 | */ | |
2832 | ||
2833 | CV* | |
d819b83a | 2834 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2835 | { |
97aff369 | 2836 | dVAR; |
a3985cdc | 2837 | PERL_SI *si; |
a3985cdc | 2838 | |
d819b83a DM |
2839 | if (db_seqp) |
2840 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2841 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2842 | I32 ix; |
a3985cdc | 2843 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2844 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2845 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2846 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2847 | /* skip DB:: code */ |
2848 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2849 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2850 | continue; | |
2851 | } | |
2852 | return cv; | |
2853 | } | |
a3985cdc DM |
2854 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2855 | return PL_compcv; | |
2856 | } | |
2857 | } | |
2858 | return PL_main_cv; | |
2859 | } | |
2860 | ||
2861 | ||
2862 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2863 | * In the last case, startop is non-null, and contains the address of | |
2864 | * a pointer that should be set to the just-compiled code. | |
2865 | * outside is the lexically enclosing CV (if any) that invoked us. | |
2866 | */ | |
2867 | ||
0824fdcb | 2868 | STATIC OP * |
a3985cdc | 2869 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 2870 | { |
27da23d5 | 2871 | dVAR; dSP; |
46c461b5 | 2872 | OP * const saveop = PL_op; |
a0d0e21e | 2873 | |
6dc8a9e4 IZ |
2874 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
2875 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
2876 | : EVAL_INEVAL); | |
a0d0e21e | 2877 | |
1ce6579f | 2878 | PUSHMARK(SP); |
2879 | ||
3280af22 | 2880 | SAVESPTR(PL_compcv); |
b9f83d2f | 2881 | PL_compcv = (CV*)newSV_type(SVt_PVCV); |
1aff0e91 | 2882 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
2883 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
2884 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
2885 | ||
a3985cdc | 2886 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
b37c2d43 | 2887 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outside); |
a3985cdc | 2888 | |
dd2155a4 | 2889 | /* set up a scratch pad */ |
a0d0e21e | 2890 | |
dd2155a4 | 2891 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 2892 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 2893 | |
07055b4c | 2894 | |
81d86705 NC |
2895 | if (!PL_madskills) |
2896 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 2897 | |
a0d0e21e LW |
2898 | /* make sure we compile in the right package */ |
2899 | ||
ed094faf | 2900 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 2901 | SAVESPTR(PL_curstash); |
ed094faf | 2902 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 2903 | } |
3c10abe3 | 2904 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
2905 | SAVESPTR(PL_beginav); |
2906 | PL_beginav = newAV(); | |
2907 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
2908 | SAVESPTR(PL_unitcheckav); |
2909 | PL_unitcheckav = newAV(); | |
2910 | SAVEFREESV(PL_unitcheckav); | |
24944567 | 2911 | SAVEI32(PL_error_count); |
a0d0e21e | 2912 | |
81d86705 | 2913 | #ifdef PERL_MAD |
9da243ce | 2914 | SAVEBOOL(PL_madskills); |
81d86705 NC |
2915 | PL_madskills = 0; |
2916 | #endif | |
2917 | ||
a0d0e21e LW |
2918 | /* try to compile it */ |
2919 | ||
5f66b61c | 2920 | PL_eval_root = NULL; |
3280af22 NIS |
2921 | PL_error_count = 0; |
2922 | PL_curcop = &PL_compiling; | |
fc15ae8f | 2923 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 2924 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 2925 | PL_in_eval |= EVAL_KEEPERR; |
1ce6579f | 2926 | else |
c69006e4 | 2927 | sv_setpvn(ERRSV,"",0); |
3280af22 | 2928 | if (yyparse() || PL_error_count || !PL_eval_root) { |
0c58d367 | 2929 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 2930 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 2931 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 2932 | const char *msg; |
bfed75c6 | 2933 | |
533c011a | 2934 | PL_op = saveop; |
3280af22 NIS |
2935 | if (PL_eval_root) { |
2936 | op_free(PL_eval_root); | |
5f66b61c | 2937 | PL_eval_root = NULL; |
a0d0e21e | 2938 | } |
3280af22 | 2939 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 2940 | if (!startop) { |
3280af22 | 2941 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2942 | POPEVAL(cx); |
c277df42 | 2943 | } |
a0d0e21e LW |
2944 | lex_end(); |
2945 | LEAVE; | |
9d4ba2ae AL |
2946 | |
2947 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 2948 | if (optype == OP_REQUIRE) { |
b464bac0 | 2949 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 2950 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 2951 | &PL_sv_undef, 0); |
5a844595 GS |
2952 | DIE(aTHX_ "%sCompilation failed in require", |
2953 | *msg ? msg : "Unknown error\n"); | |
2954 | } | |
2955 | else if (startop) { | |
3280af22 | 2956 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2957 | POPEVAL(cx); |
5a844595 GS |
2958 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
2959 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 2960 | } |
9d7f88dd | 2961 | else { |
9d7f88dd | 2962 | if (!*msg) { |
6502358f | 2963 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
2964 | } |
2965 | } | |
9d4ba2ae | 2966 | PERL_UNUSED_VAR(newsp); |
a0d0e21e LW |
2967 | RETPUSHUNDEF; |
2968 | } | |
57843af0 | 2969 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 2970 | if (startop) { |
3280af22 | 2971 | *startop = PL_eval_root; |
c277df42 | 2972 | } else |
3280af22 | 2973 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
2974 | |
2975 | /* Set the context for this new optree. | |
2976 | * If the last op is an OP_REQUIRE, force scalar context. | |
2977 | * Otherwise, propagate the context from the eval(). */ | |
2978 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
2979 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
2980 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
2981 | == OP_REQUIRE) | |
2982 | scalar(PL_eval_root); | |
2983 | else if (gimme & G_VOID) | |
3280af22 | 2984 | scalarvoid(PL_eval_root); |
54310121 | 2985 | else if (gimme & G_ARRAY) |
3280af22 | 2986 | list(PL_eval_root); |
a0d0e21e | 2987 | else |
3280af22 | 2988 | scalar(PL_eval_root); |
a0d0e21e LW |
2989 | |
2990 | DEBUG_x(dump_eval()); | |
2991 | ||
55497cff | 2992 | /* Register with debugger: */ |
6482a30d | 2993 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
890ce7af | 2994 | CV * const cv = get_cv("DB::postponed", FALSE); |
55497cff | 2995 | if (cv) { |
2996 | dSP; | |
924508f0 | 2997 | PUSHMARK(SP); |
cc49e20b | 2998 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
55497cff | 2999 | PUTBACK; |
864dbfa3 | 3000 | call_sv((SV*)cv, G_DISCARD); |
55497cff | 3001 | } |
3002 | } | |
3003 | ||
3c10abe3 AG |
3004 | if (PL_unitcheckav) |
3005 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3006 | ||
a0d0e21e LW |
3007 | /* compiled okay, so do it */ |
3008 | ||
3280af22 NIS |
3009 | CvDEPTH(PL_compcv) = 1; |
3010 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3011 | PL_op = saveop; /* The caller may need it. */ |
6dc8a9e4 | 3012 | PL_lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3013 | |
3280af22 | 3014 | RETURNOP(PL_eval_start); |
a0d0e21e LW |
3015 | } |
3016 | ||
a6c40364 | 3017 | STATIC PerlIO * |
74d5ed12 | 3018 | S_check_type_and_open(pTHX_ const char *name, const char *mode) |
ce8abf5f SP |
3019 | { |
3020 | Stat_t st; | |
c445ea15 | 3021 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3022 | |
6b845e56 | 3023 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3024 | return NULL; |
ce8abf5f SP |
3025 | } |
3026 | ||
ce8abf5f SP |
3027 | return PerlIO_open(name, mode); |
3028 | } | |
3029 | ||
3030 | STATIC PerlIO * | |
7925835c | 3031 | S_doopen_pm(pTHX_ const char *name, const char *mode) |
b295d113 | 3032 | { |
7925835c | 3033 | #ifndef PERL_DISABLE_PMC |
f54cb97a | 3034 | const STRLEN namelen = strlen(name); |
b295d113 TH |
3035 | PerlIO *fp; |
3036 | ||
7894fbab | 3037 | if (namelen > 3 && strEQ(name + namelen - 3, ".pm")) { |
9d4ba2ae | 3038 | SV * const pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c'); |
349d4f2f | 3039 | const char * const pmc = SvPV_nolen_const(pmcsv); |
a6c40364 GS |
3040 | Stat_t pmcstat; |
3041 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { | |
85e8f315 | 3042 | fp = check_type_and_open(name, mode); |
a6c40364 GS |
3043 | } |
3044 | else { | |
a91233bf | 3045 | fp = check_type_and_open(pmc, mode); |
b295d113 | 3046 | } |
a6c40364 GS |
3047 | SvREFCNT_dec(pmcsv); |
3048 | } | |
3049 | else { | |
85e8f315 | 3050 | fp = check_type_and_open(name, mode); |
b295d113 | 3051 | } |
b295d113 | 3052 | return fp; |
7925835c | 3053 | #else |
85e8f315 | 3054 | return check_type_and_open(name, mode); |
7925835c | 3055 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 TH |
3056 | } |
3057 | ||
a0d0e21e LW |
3058 | PP(pp_require) |
3059 | { | |
27da23d5 | 3060 | dVAR; dSP; |
c09156bb | 3061 | register PERL_CONTEXT *cx; |
a0d0e21e | 3062 | SV *sv; |
5c144d81 | 3063 | const char *name; |
6132ea6c | 3064 | STRLEN len; |
c445ea15 AL |
3065 | const char *tryname = NULL; |
3066 | SV *namesv = NULL; | |
f54cb97a | 3067 | const I32 gimme = GIMME_V; |
bbed91b5 | 3068 | int filter_has_file = 0; |
c445ea15 | 3069 | PerlIO *tryrsfp = NULL; |
34113e50 | 3070 | SV *filter_cache = NULL; |
c445ea15 AL |
3071 | SV *filter_state = NULL; |
3072 | SV *filter_sub = NULL; | |
3073 | SV *hook_sv = NULL; | |
6ec9efec JH |
3074 | SV *encoding; |
3075 | OP *op; | |
a0d0e21e LW |
3076 | |
3077 | sv = POPs; | |
d7aa5382 JP |
3078 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
3079 | if ( SvVOK(sv) && ckWARN(WARN_PORTABLE) ) /* require v5.6.1 */ | |
9014280d | 3080 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
e3407aba | 3081 | "v-string in use/require non-portable"); |
d7aa5382 JP |
3082 | |
3083 | sv = new_version(sv); | |
3084 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3085 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3086 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3087 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3088 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3089 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3090 | } |
3091 | else { | |
3092 | if ( vcmp(sv,PL_patchlevel) > 0 ) | |
3093 | DIE(aTHX_ "Perl %"SVf" required--this is only %"SVf", stopped", | |
be2597df | 3094 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 | 3095 | } |
d7aa5382 | 3096 | |
7dfde25d RGS |
3097 | /* If we request a version >= 5.9.5, load feature.pm with the |
3098 | * feature bundle that corresponds to the required version. | |
3099 | * We do this only with use, not require. */ | |
ac0e6a2f | 3100 | if (PL_compcv && vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { |
7dfde25d RGS |
3101 | SV *const importsv = vnormal(sv); |
3102 | *SvPVX_mutable(importsv) = ':'; | |
3103 | ENTER; | |
3104 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3105 | LEAVE; | |
3106 | } | |
3107 | ||
3108 | RETPUSHYES; | |
a0d0e21e | 3109 | } |
5c144d81 | 3110 | name = SvPV_const(sv, len); |
6132ea6c | 3111 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3112 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3113 | TAINT_PROPER("require"); |
44f8325f | 3114 | if (PL_op->op_type == OP_REQUIRE) { |
0bd48802 | 3115 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); |
44f8325f AL |
3116 | if ( svp ) { |
3117 | if (*svp != &PL_sv_undef) | |
3118 | RETPUSHYES; | |
3119 | else | |
3120 | DIE(aTHX_ "Compilation failed in require"); | |
3121 | } | |
4d8b06f1 | 3122 | } |
a0d0e21e LW |
3123 | |
3124 | /* prepare to compile file */ | |
3125 | ||
be4b629d | 3126 | if (path_is_absolute(name)) { |
46fc3d4c | 3127 | tryname = name; |
7925835c | 3128 | tryrsfp = doopen_pm(name,PERL_SCRIPT_MODE); |
bf4acbe4 | 3129 | } |
67627c52 JH |
3130 | #ifdef MACOS_TRADITIONAL |
3131 | if (!tryrsfp) { | |
3132 | char newname[256]; | |
3133 | ||
3134 | MacPerl_CanonDir(name, newname, 1); | |
3135 | if (path_is_absolute(newname)) { | |
3136 | tryname = newname; | |
7925835c | 3137 | tryrsfp = doopen_pm(newname,PERL_SCRIPT_MODE); |
67627c52 JH |
3138 | } |
3139 | } | |
3140 | #endif | |
be4b629d | 3141 | if (!tryrsfp) { |
44f8325f | 3142 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3143 | I32 i; |
748a9306 | 3144 | #ifdef VMS |
46fc3d4c | 3145 | char *unixname; |
c445ea15 | 3146 | if ((unixname = tounixspec(name, NULL)) != NULL) |
46fc3d4c | 3147 | #endif |
3148 | { | |
561b68a9 | 3149 | namesv = newSV(0); |
46fc3d4c | 3150 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3151 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3152 | |
c38a6530 RD |
3153 | if (SvTIED_mg((SV*)ar, PERL_MAGIC_tied)) |
3154 | mg_get(dirsv); | |
bbed91b5 KF |
3155 | if (SvROK(dirsv)) { |
3156 | int count; | |
a3b58a99 | 3157 | SV **svp; |
bbed91b5 KF |
3158 | SV *loader = dirsv; |
3159 | ||
e14e2dc8 NC |
3160 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3161 | && !sv_isobject(loader)) | |
3162 | { | |
bbed91b5 KF |
3163 | loader = *av_fetch((AV *)SvRV(loader), 0, TRUE); |
3164 | } | |
3165 | ||
b900a521 | 3166 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3167 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3168 | tryname = SvPVX_const(namesv); |
c445ea15 | 3169 | tryrsfp = NULL; |
bbed91b5 KF |
3170 | |
3171 | ENTER; | |
3172 | SAVETMPS; | |
3173 | EXTEND(SP, 2); | |
3174 | ||
3175 | PUSHMARK(SP); | |
3176 | PUSHs(dirsv); | |
3177 | PUSHs(sv); | |
3178 | PUTBACK; | |
e982885c NC |
3179 | if (sv_isobject(loader)) |
3180 | count = call_method("INC", G_ARRAY); | |
3181 | else | |
3182 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3183 | SPAGAIN; |
3184 | ||
a3b58a99 RGS |
3185 | /* Adjust file name if the hook has set an %INC entry */ |
3186 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3187 | if (svp) | |
3188 | tryname = SvPVX_const(*svp); | |
3189 | ||
bbed91b5 KF |
3190 | if (count > 0) { |
3191 | int i = 0; | |
3192 | SV *arg; | |
3193 | ||
3194 | SP -= count - 1; | |
3195 | arg = SP[i++]; | |
3196 | ||
34113e50 NC |
3197 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3198 | && !isGV_with_GP(SvRV(arg))) { | |
3199 | filter_cache = SvRV(arg); | |
74c765eb | 3200 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3201 | |
3202 | if (i < count) { | |
3203 | arg = SP[i++]; | |
3204 | } | |
3205 | } | |
3206 | ||
bbed91b5 KF |
3207 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVGV) { |
3208 | arg = SvRV(arg); | |
3209 | } | |
3210 | ||
3211 | if (SvTYPE(arg) == SVt_PVGV) { | |
df528165 | 3212 | IO * const io = GvIO((GV *)arg); |
bbed91b5 KF |
3213 | |
3214 | ++filter_has_file; | |
3215 | ||
3216 | if (io) { | |
3217 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3218 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3219 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3220 | } |
0f7de14d NC |
3221 | IoIFP(io) = NULL; |
3222 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3223 | } |
3224 | ||
3225 | if (i < count) { | |
3226 | arg = SP[i++]; | |
3227 | } | |
3228 | } | |
3229 | ||
3230 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3231 | filter_sub = arg; | |
74c765eb | 3232 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3233 | |
3234 | if (i < count) { | |
3235 | filter_state = SP[i]; | |
b37c2d43 | 3236 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3237 | } |
34113e50 | 3238 | } |
bbed91b5 | 3239 | |
34113e50 NC |
3240 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3241 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3242 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3243 | } |
1d06aecd | 3244 | SP--; |
bbed91b5 KF |
3245 | } |
3246 | ||
3247 | PUTBACK; | |
3248 | FREETMPS; | |
3249 | LEAVE; | |
3250 | ||
3251 | if (tryrsfp) { | |
89ccab8c | 3252 | hook_sv = dirsv; |
bbed91b5 KF |
3253 | break; |
3254 | } | |
3255 | ||
3256 | filter_has_file = 0; | |
34113e50 NC |
3257 | if (filter_cache) { |
3258 | SvREFCNT_dec(filter_cache); | |
3259 | filter_cache = NULL; | |
3260 | } | |
bbed91b5 KF |
3261 | if (filter_state) { |
3262 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3263 | filter_state = NULL; |
bbed91b5 KF |
3264 | } |
3265 | if (filter_sub) { | |
3266 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3267 | filter_sub = NULL; |
bbed91b5 KF |
3268 | } |
3269 | } | |
3270 | else { | |
be4b629d CN |
3271 | if (!path_is_absolute(name) |
3272 | #ifdef MACOS_TRADITIONAL | |
3273 | /* We consider paths of the form :a:b ambiguous and interpret them first | |
3274 | as global then as local | |
3275 | */ | |
3276 | || (*name == ':' && name[1] != ':' && strchr(name+2, ':')) | |
3277 | #endif | |
3278 | ) { | |
4ea561bc | 3279 | const char *dir = SvPV_nolen_const(dirsv); |
bf4acbe4 | 3280 | #ifdef MACOS_TRADITIONAL |
67627c52 JH |
3281 | char buf1[256]; |
3282 | char buf2[256]; | |
3283 | ||
3284 | MacPerl_CanonDir(name, buf2, 1); | |
3285 | Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':')); | |
bf4acbe4 | 3286 | #else |
27da23d5 | 3287 | # ifdef VMS |
bbed91b5 | 3288 | char *unixdir; |
c445ea15 | 3289 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3290 | continue; |
3291 | sv_setpv(namesv, unixdir); | |
3292 | sv_catpv(namesv, unixname); | |
27da23d5 | 3293 | # else |
a0fd4948 | 3294 | # ifdef __SYMBIAN32__ |
27da23d5 JH |
3295 | if (PL_origfilename[0] && |
3296 | PL_origfilename[1] == ':' && | |
3297 | !(dir[0] && dir[1] == ':')) | |
3298 | Perl_sv_setpvf(aTHX_ namesv, | |
3299 | "%c:%s\\%s", | |
3300 | PL_origfilename[0], | |
3301 | dir, name); | |
3302 | else | |
3303 | Perl_sv_setpvf(aTHX_ namesv, | |
3304 | "%s\\%s", | |
3305 | dir, name); | |
3306 | # else | |
bbed91b5 | 3307 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); |
27da23d5 JH |
3308 | # endif |
3309 | # endif | |
bf4acbe4 | 3310 | #endif |
bbed91b5 | 3311 | TAINT_PROPER("require"); |
349d4f2f | 3312 | tryname = SvPVX_const(namesv); |
7925835c | 3313 | tryrsfp = doopen_pm(tryname, PERL_SCRIPT_MODE); |
bbed91b5 KF |
3314 | if (tryrsfp) { |
3315 | if (tryname[0] == '.' && tryname[1] == '/') | |
3316 | tryname += 2; | |
3317 | break; | |
3318 | } | |
ff806af2 DM |
3319 | else if (errno == EMFILE) |
3320 | /* no point in trying other paths if out of handles */ | |
3321 | break; | |
be4b629d | 3322 | } |
46fc3d4c | 3323 | } |
a0d0e21e LW |
3324 | } |
3325 | } | |
3326 | } | |
f4dd75d9 | 3327 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3328 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3329 | SvREFCNT_dec(namesv); |
a0d0e21e | 3330 | if (!tryrsfp) { |
533c011a | 3331 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3332 | const char *msgstr = name; |
e31de809 | 3333 | if(errno == EMFILE) { |
b9b739dc NC |
3334 | SV * const msg |
3335 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3336 | Strerror(errno))); | |
349d4f2f | 3337 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3338 | } else { |
3339 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3340 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3341 | I32 i; |
b8f04b1b NC |
3342 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3343 | "%s in @INC%s%s (@INC contains:", | |
3344 | msgstr, | |
3345 | (instr(msgstr, ".h ") | |
3346 | ? " (change .h to .ph maybe?)" : ""), | |
3347 | (instr(msgstr, ".ph ") | |
3348 | ? " (did you run h2ph?)" : "") | |
3349 | )); | |
3350 | ||
e31de809 | 3351 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3352 | sv_catpvs(msg, " "); |
b8f04b1b | 3353 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3354 | } |
396482e1 | 3355 | sv_catpvs(msg, ")"); |
e31de809 SP |
3356 | msgstr = SvPV_nolen_const(msg); |
3357 | } | |
2683423c | 3358 | } |
ea071790 | 3359 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3360 | } |
3361 | ||
3362 | RETPUSHUNDEF; | |
3363 | } | |
d8bfb8bd | 3364 | else |
93189314 | 3365 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3366 | |
3367 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3368 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3369 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f AL |
3370 | if (!hook_sv) { |
3371 | (void)hv_store(GvHVn(PL_incgv), name, len, newSVpv(CopFILE(&PL_compiling),0),0); | |
3372 | } else { | |
3373 | SV** const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3374 | if (!svp) | |
b37c2d43 | 3375 | (void)hv_store(GvHVn(PL_incgv), name, len, SvREFCNT_inc_simple(hook_sv), 0 ); |
d3a4e64e | 3376 | } |
a0d0e21e LW |
3377 | |
3378 | ENTER; | |
3379 | SAVETMPS; | |
10efb74f | 3380 | lex_start(NULL); |
b9d12d37 | 3381 | SAVEGENERICSV(PL_rsfp_filters); |
7d49f689 | 3382 | PL_rsfp_filters = NULL; |
e50aee73 | 3383 | |
3280af22 | 3384 | PL_rsfp = tryrsfp; |
b3ac6de7 | 3385 | SAVEHINTS(); |
3280af22 | 3386 | PL_hints = 0; |
68da3b2f | 3387 | SAVECOMPILEWARNINGS(); |
0453d815 | 3388 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3389 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3390 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3391 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3392 | else |
d3a7d8c7 | 3393 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3394 | |
34113e50 | 3395 | if (filter_sub || filter_cache) { |
c445ea15 | 3396 | SV * const datasv = filter_add(S_run_user_filter, NULL); |
bbed91b5 | 3397 | IoLINES(datasv) = filter_has_file; |
bbed91b5 KF |
3398 | IoTOP_GV(datasv) = (GV *)filter_state; |
3399 | IoBOTTOM_GV(datasv) = (GV *)filter_sub; | |
34113e50 | 3400 | IoFMT_GV(datasv) = (GV *)filter_cache; |
bbed91b5 KF |
3401 | } |
3402 | ||
3403 | /* switch to eval mode */ | |
a0d0e21e | 3404 | PUSHBLOCK(cx, CXt_EVAL, SP); |
a0714e2c | 3405 | PUSHEVAL(cx, name, NULL); |
f39bc417 | 3406 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3407 | |
57843af0 GS |
3408 | SAVECOPLINE(&PL_compiling); |
3409 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3410 | |
3411 | PUTBACK; | |
6ec9efec JH |
3412 | |
3413 | /* Store and reset encoding. */ | |
3414 | encoding = PL_encoding; | |
c445ea15 | 3415 | PL_encoding = NULL; |
6ec9efec | 3416 | |
601f1833 | 3417 | op = DOCATCH(doeval(gimme, NULL, NULL, PL_curcop->cop_seq)); |
bfed75c6 | 3418 | |
6ec9efec JH |
3419 | /* Restore encoding. */ |
3420 | PL_encoding = encoding; | |
3421 | ||
3422 | return op; | |
a0d0e21e LW |
3423 | } |
3424 | ||
a0d0e21e LW |
3425 | PP(pp_entereval) |
3426 | { | |
27da23d5 | 3427 | dVAR; dSP; |
c09156bb | 3428 | register PERL_CONTEXT *cx; |
0d863452 | 3429 | SV *sv; |
890ce7af AL |
3430 | const I32 gimme = GIMME_V; |
3431 | const I32 was = PL_sub_generation; | |
83ee9e09 GS |
3432 | char tbuf[TYPE_DIGITS(long) + 12]; |
3433 | char *tmpbuf = tbuf; | |
fc36a67e | 3434 | char *safestr; |
a0d0e21e | 3435 | STRLEN len; |
55497cff | 3436 | OP *ret; |
a3985cdc | 3437 | CV* runcv; |
d819b83a | 3438 | U32 seq; |
c445ea15 | 3439 | HV *saved_hh = NULL; |
e80fed9d | 3440 | const char * const fakestr = "_<(eval )"; |
e80fed9d | 3441 | const int fakelen = 9 + 1; |
0d863452 RH |
3442 | |
3443 | if (PL_op->op_private & OPpEVAL_HAS_HH) { | |
3444 | saved_hh = (HV*) SvREFCNT_inc(POPs); | |
3445 | } | |
3446 | sv = POPs; | |
a0d0e21e | 3447 | |
af2d3def | 3448 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3449 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3450 | |
3451 | ENTER; | |
a0d0e21e | 3452 | lex_start(sv); |
748a9306 | 3453 | SAVETMPS; |
ac27b0f5 | 3454 | |
a0d0e21e LW |
3455 | /* switch to eval mode */ |
3456 | ||
83ee9e09 | 3457 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3458 | SV * const temp_sv = sv_newmortal(); |
3459 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3460 | (unsigned long)++PL_evalseq, |
3461 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3462 | tmpbuf = SvPVX(temp_sv); |
3463 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3464 | } |
3465 | else | |
d9fad198 | 3466 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3467 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3468 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3469 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3470 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3471 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3472 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3473 | (i.e. before run-time proper). To work around the coredump that | |
3474 | ensues, we always turn GvMULTI_on for any globals that were | |
3475 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3476 | safestr = savepvn(tmpbuf, len); |
3477 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3478 | SAVEHINTS(); |
533c011a | 3479 | PL_hints = PL_op->op_targ; |
0d863452 RH |
3480 | if (saved_hh) |
3481 | GvHV(PL_hintgv) = saved_hh; | |
68da3b2f | 3482 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3483 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3484 | if (PL_compiling.cop_hints_hash) { |
3485 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3486 | } |
c28fe1ec NC |
3487 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; |
3488 | if (PL_compiling.cop_hints_hash) { | |
cbb1fbea | 3489 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3490 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3491 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3492 | } |
d819b83a DM |
3493 | /* special case: an eval '' executed within the DB package gets lexically |
3494 | * placed in the first non-DB CV rather than the current CV - this | |
3495 | * allows the debugger to execute code, find lexicals etc, in the | |
3496 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3497 | * to do the dirty work for us */ | |
3498 | runcv = find_runcv(&seq); | |
a0d0e21e | 3499 | |
6b35e009 | 3500 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
a0714e2c | 3501 | PUSHEVAL(cx, 0, NULL); |
f39bc417 | 3502 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3503 | |
3504 | /* prepare to compile string */ | |
3505 | ||
3280af22 | 3506 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
cc49e20b | 3507 | save_lines(CopFILEAV(&PL_compiling), PL_linestr); |
a0d0e21e | 3508 | PUTBACK; |
d819b83a | 3509 | ret = doeval(gimme, NULL, runcv, seq); |
eb160463 | 3510 | if (PERLDB_INTER && was != (I32)PL_sub_generation /* Some subs defined here. */ |
533c011a | 3511 | && ret != PL_op->op_next) { /* Successive compilation. */ |
e80fed9d | 3512 | /* Copy in anything fake and short. */ |
28f0d0ec | 3513 | my_strlcpy(safestr, fakestr, fakelen); |
55497cff | 3514 | } |
1e422769 | 3515 | return DOCATCH(ret); |
a0d0e21e LW |
3516 | } |
3517 | ||
3518 | PP(pp_leaveeval) | |
3519 | { | |
27da23d5 | 3520 | dVAR; dSP; |
a0d0e21e LW |
3521 | register SV **mark; |
3522 | SV **newsp; | |
3523 | PMOP *newpm; | |
3524 | I32 gimme; | |
c09156bb | 3525 | register PERL_CONTEXT *cx; |
a0d0e21e | 3526 | OP *retop; |
06b5626a | 3527 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3528 | I32 optype; |
3529 | ||
3530 | POPBLOCK(cx,newpm); | |
3531 | POPEVAL(cx); | |
f39bc417 | 3532 | retop = cx->blk_eval.retop; |
a0d0e21e | 3533 | |
a1f49e72 | 3534 | TAINT_NOT; |
54310121 | 3535 | if (gimme == G_VOID) |
3536 | MARK = newsp; | |
3537 | else if (gimme == G_SCALAR) { | |
3538 | MARK = newsp + 1; | |
3539 | if (MARK <= SP) { | |
3540 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3541 | *MARK = TOPs; | |
3542 | else | |
3543 | *MARK = sv_mortalcopy(TOPs); | |
3544 | } | |
a0d0e21e | 3545 | else { |
54310121 | 3546 | MEXTEND(mark,0); |
3280af22 | 3547 | *MARK = &PL_sv_undef; |
a0d0e21e | 3548 | } |
a7ec2b44 | 3549 | SP = MARK; |
a0d0e21e LW |
3550 | } |
3551 | else { | |
a1f49e72 CS |
3552 | /* in case LEAVE wipes old return values */ |
3553 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3554 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3555 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3556 | TAINT_NOT; /* Each item is independent */ |
3557 | } | |
3558 | } | |
a0d0e21e | 3559 | } |
3280af22 | 3560 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3561 | |
4fdae800 | 3562 | #ifdef DEBUGGING |
3280af22 | 3563 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3564 | #endif |
3280af22 | 3565 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3566 | lex_end(); |
4fdae800 | 3567 | |
1ce6579f | 3568 | if (optype == OP_REQUIRE && |
924508f0 | 3569 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3570 | { |
1ce6579f | 3571 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3572 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3573 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 3574 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
f46d017c GS |
3575 | /* die_where() did LEAVE, or we won't be here */ |
3576 | } | |
3577 | else { | |
3578 | LEAVE; | |
3579 | if (!(save_flags & OPf_SPECIAL)) | |
c69006e4 | 3580 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 3581 | } |
a0d0e21e LW |
3582 | |
3583 | RETURNOP(retop); | |
3584 | } | |
3585 | ||
edb2152a NC |
3586 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3587 | close to the related Perl_create_eval_scope. */ | |
3588 | void | |
3589 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3590 | { |
edb2152a NC |
3591 | SV **newsp; |
3592 | PMOP *newpm; | |
3593 | I32 gimme; | |
c09156bb | 3594 | register PERL_CONTEXT *cx; |
edb2152a NC |
3595 | I32 optype; |
3596 | ||
3597 | POPBLOCK(cx,newpm); | |
3598 | POPEVAL(cx); | |
3599 | PL_curpm = newpm; | |
3600 | LEAVE; | |
3601 | PERL_UNUSED_VAR(newsp); | |
3602 | PERL_UNUSED_VAR(gimme); | |
3603 | PERL_UNUSED_VAR(optype); | |
3604 | } | |
a0d0e21e | 3605 | |
edb2152a NC |
3606 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3607 | also needed by Perl_fold_constants. */ | |
3608 | PERL_CONTEXT * | |
3609 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3610 | { | |
3611 | PERL_CONTEXT *cx; | |
3612 | const I32 gimme = GIMME_V; | |
3613 | ||
a0d0e21e LW |
3614 | ENTER; |
3615 | SAVETMPS; | |
3616 | ||
edb2152a | 3617 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
a0d0e21e | 3618 | PUSHEVAL(cx, 0, 0); |
a0d0e21e | 3619 | |
faef0170 | 3620 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3621 | if (flags & G_KEEPERR) |
3622 | PL_in_eval |= EVAL_KEEPERR; | |
3623 | else | |
3624 | sv_setpvn(ERRSV,"",0); | |
3625 | if (flags & G_FAKINGEVAL) { | |
3626 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3627 | } | |
3628 | return cx; | |
3629 | } | |
3630 | ||
3631 | PP(pp_entertry) | |
3632 | { | |
3633 | dVAR; | |
df528165 | 3634 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3635 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3636 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3637 | } |
3638 | ||
3639 | PP(pp_leavetry) | |
3640 | { | |
27da23d5 | 3641 | dVAR; dSP; |
a0d0e21e LW |
3642 | SV **newsp; |
3643 | PMOP *newpm; | |
3644 | I32 gimme; | |
c09156bb | 3645 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3646 | I32 optype; |
3647 | ||
3648 | POPBLOCK(cx,newpm); | |
3649 | POPEVAL(cx); | |
9d4ba2ae | 3650 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3651 | |
a1f49e72 | 3652 | TAINT_NOT; |
54310121 | 3653 | if (gimme == G_VOID) |
3654 | SP = newsp; | |
3655 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3656 | register SV **mark; |
54310121 | 3657 | MARK = newsp + 1; |
3658 | if (MARK <= SP) { | |
3659 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3660 | *MARK = TOPs; | |
3661 | else | |
3662 | *MARK = sv_mortalcopy(TOPs); | |
3663 | } | |
a0d0e21e | 3664 | else { |
54310121 | 3665 | MEXTEND(mark,0); |
3280af22 | 3666 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3667 | } |
3668 | SP = MARK; | |
3669 | } | |
3670 | else { | |
a1f49e72 | 3671 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3672 | register SV **mark; |
a1f49e72 CS |
3673 | for (mark = newsp + 1; mark <= SP; mark++) { |
3674 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3675 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3676 | TAINT_NOT; /* Each item is independent */ |
3677 | } | |
3678 | } | |
a0d0e21e | 3679 | } |
3280af22 | 3680 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3681 | |
3682 | LEAVE; | |
c69006e4 | 3683 | sv_setpvn(ERRSV,"",0); |
745cf2ff | 3684 | RETURN; |
a0d0e21e LW |
3685 | } |
3686 | ||
0d863452 RH |
3687 | PP(pp_entergiven) |
3688 | { | |
3689 | dVAR; dSP; | |
3690 | register PERL_CONTEXT *cx; | |
3691 | const I32 gimme = GIMME_V; | |
3692 | ||
3693 | ENTER; | |
3694 | SAVETMPS; | |
3695 | ||
3696 | if (PL_op->op_targ == 0) { | |
c445ea15 | 3697 | SV ** const defsv_p = &GvSV(PL_defgv); |
0d863452 RH |
3698 | *defsv_p = newSVsv(POPs); |
3699 | SAVECLEARSV(*defsv_p); | |
3700 | } | |
3701 | else | |
3702 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); | |
3703 | ||
3704 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3705 | PUSHGIVEN(cx); | |
3706 | ||
3707 | RETURN; | |
3708 | } | |
3709 | ||
3710 | PP(pp_leavegiven) | |
3711 | { | |
3712 | dVAR; dSP; | |
3713 | register PERL_CONTEXT *cx; | |
3714 | I32 gimme; | |
3715 | SV **newsp; | |
3716 | PMOP *newpm; | |
96a5add6 | 3717 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3718 | |
3719 | POPBLOCK(cx,newpm); | |
3720 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3721 | |
3722 | SP = newsp; | |
3723 | PUTBACK; | |
3724 | ||
3725 | PL_curpm = newpm; /* pop $1 et al */ | |
3726 | ||
3727 | LEAVE; | |
3728 | ||
3729 | return NORMAL; | |
3730 | } | |
3731 | ||
3732 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 3733 | STATIC PMOP * |
0d863452 RH |
3734 | S_make_matcher(pTHX_ regexp *re) |
3735 | { | |
97aff369 | 3736 | dVAR; |
0d863452 RH |
3737 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
3738 | PM_SETRE(matcher, ReREFCNT_inc(re)); | |
3739 | ||
3740 | SAVEFREEOP((OP *) matcher); | |
3741 | ENTER; SAVETMPS; | |
3742 | SAVEOP(); | |
3743 | return matcher; | |
3744 | } | |
3745 | ||
4136a0f7 | 3746 | STATIC bool |
0d863452 RH |
3747 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
3748 | { | |
97aff369 | 3749 | dVAR; |
0d863452 RH |
3750 | dSP; |
3751 | ||
3752 | PL_op = (OP *) matcher; | |
3753 | XPUSHs(sv); | |
3754 | PUTBACK; | |
3755 | (void) pp_match(); | |
3756 | SPAGAIN; | |
3757 | return (SvTRUEx(POPs)); | |
3758 | } | |
3759 | ||
4136a0f7 | 3760 | STATIC void |
0d863452 RH |
3761 | S_destroy_matcher(pTHX_ PMOP *matcher) |
3762 | { | |
97aff369 | 3763 | dVAR; |
0d863452 RH |
3764 | PERL_UNUSED_ARG(matcher); |
3765 | FREETMPS; | |
3766 | LEAVE; | |
3767 | } | |
3768 | ||
3769 | /* Do a smart match */ | |
3770 | PP(pp_smartmatch) | |
3771 | { | |
a0714e2c | 3772 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
3773 | } |
3774 | ||
4b021f5f RGS |
3775 | /* This version of do_smartmatch() implements the |
3776 | * table of smart matches that is found in perlsyn. | |
0d863452 | 3777 | */ |
4136a0f7 | 3778 | STATIC OP * |
0d863452 RH |
3779 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
3780 | { | |
97aff369 | 3781 | dVAR; |
0d863452 RH |
3782 | dSP; |
3783 | ||
3784 | SV *e = TOPs; /* e is for 'expression' */ | |
3785 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
10edeb5d | 3786 | SV *This, *Other; /* 'This' (and Other to match) to play with C++ */ |
0d863452 RH |
3787 | MAGIC *mg; |
3788 | regexp *this_regex, *other_regex; | |
3789 | ||
3790 | # define NOT_EMPTY_PROTO(cv) (!SvPOK(cv) || SvCUR(cv) == 0) | |
3791 | ||
3792 | # define SM_REF(type) ( \ | |
10edeb5d JH |
3793 | (SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_##type) && (Other = e)) \ |
3794 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_##type) && (Other = d))) | |
0d863452 RH |
3795 | |
3796 | # define SM_CV_NEP /* Find a code ref without an empty prototype */ \ | |
10edeb5d JH |
3797 | ((SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_PVCV) \ |
3798 | && NOT_EMPTY_PROTO(This) && (Other = e)) \ | |
3799 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_PVCV) \ | |
3800 | && NOT_EMPTY_PROTO(This) && (Other = d))) | |
0d863452 RH |
3801 | |
3802 | # define SM_REGEX ( \ | |
10edeb5d JH |
3803 | (SvROK(d) && SvMAGICAL(This = SvRV(d)) \ |
3804 | && (mg = mg_find(This, PERL_MAGIC_qr)) \ | |
0d863452 | 3805 | && (this_regex = (regexp *)mg->mg_obj) \ |
10edeb5d | 3806 | && (Other = e)) \ |
0d863452 | 3807 | || \ |
10edeb5d JH |
3808 | (SvROK(e) && SvMAGICAL(This = SvRV(e)) \ |
3809 | && (mg = mg_find(This, PERL_MAGIC_qr)) \ | |
0d863452 | 3810 | && (this_regex = (regexp *)mg->mg_obj) \ |
10edeb5d | 3811 | && (Other = d)) ) |
0d863452 RH |
3812 | |
3813 | ||
3814 | # define SM_OTHER_REF(type) \ | |
10edeb5d | 3815 | (SvROK(Other) && SvTYPE(SvRV(Other)) == SVt_##type) |
0d863452 | 3816 | |
10edeb5d JH |
3817 | # define SM_OTHER_REGEX (SvROK(Other) && SvMAGICAL(SvRV(Other)) \ |
3818 | && (mg = mg_find(SvRV(Other), PERL_MAGIC_qr)) \ | |
0d863452 RH |
3819 | && (other_regex = (regexp *)mg->mg_obj)) |
3820 | ||
3821 | ||
3822 | # define SM_SEEN_THIS(sv) hv_exists_ent(seen_this, \ | |
98f4023c | 3823 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3824 | |
3825 | # define SM_SEEN_OTHER(sv) hv_exists_ent(seen_other, \ | |
98f4023c | 3826 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3827 | |
3828 | tryAMAGICbinSET(smart, 0); | |
3829 | ||
3830 | SP -= 2; /* Pop the values */ | |
3831 | ||
3832 | /* Take care only to invoke mg_get() once for each argument. | |
3833 | * Currently we do this by copying the SV if it's magical. */ | |
3834 | if (d) { | |
3835 | if (SvGMAGICAL(d)) | |
3836 | d = sv_mortalcopy(d); | |
3837 | } | |
3838 | else | |
3839 | d = &PL_sv_undef; | |
3840 | ||
3841 | assert(e); | |
3842 | if (SvGMAGICAL(e)) | |
3843 | e = sv_mortalcopy(e); | |
3844 | ||
3845 | if (SM_CV_NEP) { | |
3846 | I32 c; | |
3847 | ||
10edeb5d | 3848 | if ( SM_OTHER_REF(PVCV) && NOT_EMPTY_PROTO(SvRV(Other)) ) |
0d863452 | 3849 | { |
10edeb5d | 3850 | if (This == SvRV(Other)) |
0d863452 RH |
3851 | RETPUSHYES; |
3852 | else | |
3853 | RETPUSHNO; | |
3854 | } | |
3855 | ||
3856 | ENTER; | |
3857 | SAVETMPS; | |
3858 | PUSHMARK(SP); | |
10edeb5d | 3859 | PUSHs(Other); |
0d863452 | 3860 | PUTBACK; |
10edeb5d | 3861 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
3862 | SPAGAIN; |
3863 | if (c == 0) | |
3864 | PUSHs(&PL_sv_no); | |
3865 | else if (SvTEMP(TOPs)) | |
df528165 | 3866 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
3867 | FREETMPS; |
3868 | LEAVE; | |
3869 | RETURN; | |
3870 | } | |
3871 | else if (SM_REF(PVHV)) { | |
3872 | if (SM_OTHER_REF(PVHV)) { | |
3873 | /* Check that the key-sets are identical */ | |
3874 | HE *he; | |
10edeb5d | 3875 | HV *other_hv = (HV *) SvRV(Other); |
0d863452 RH |
3876 | bool tied = FALSE; |
3877 | bool other_tied = FALSE; | |
3878 | U32 this_key_count = 0, | |
3879 | other_key_count = 0; | |
3880 | ||
3881 | /* Tied hashes don't know how many keys they have. */ | |
10edeb5d | 3882 | if (SvTIED_mg(This, PERL_MAGIC_tied)) { |
0d863452 RH |
3883 | tied = TRUE; |
3884 | } | |
3885 | else if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) { | |
c445ea15 | 3886 | HV * const temp = other_hv; |
10edeb5d JH |
3887 | other_hv = (HV *) This; |
3888 | This = (SV *) temp; | |
0d863452 RH |
3889 | tied = TRUE; |
3890 | } | |
3891 | if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) | |
3892 | other_tied = TRUE; | |
3893 | ||
10edeb5d | 3894 | if (!tied && HvUSEDKEYS((HV *) This) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
3895 | RETPUSHNO; |
3896 | ||
3897 | /* The hashes have the same number of keys, so it suffices | |
3898 | to check that one is a subset of the other. */ | |
10edeb5d JH |
3899 | (void) hv_iterinit((HV *) This); |
3900 | while ( (he = hv_iternext((HV *) This)) ) { | |
0d863452 | 3901 | I32 key_len; |
c445ea15 | 3902 | char * const key = hv_iterkey(he, &key_len); |
0d863452 RH |
3903 | |
3904 | ++ this_key_count; | |
3905 | ||
3906 | if(!hv_exists(other_hv, key, key_len)) { | |
10edeb5d | 3907 | (void) hv_iterinit((HV *) This); /* reset iterator */ |
0d863452 RH |
3908 | RETPUSHNO; |
3909 | } | |
3910 | } | |
3911 | ||
3912 | if (other_tied) { | |
3913 | (void) hv_iterinit(other_hv); | |
3914 | while ( hv_iternext(other_hv) ) | |
3915 | ++other_key_count; | |
3916 | } | |
3917 | else | |
3918 | other_key_count = HvUSEDKEYS(other_hv); | |
3919 | ||
3920 | if (this_key_count != other_key_count) | |
3921 | RETPUSHNO; | |
3922 | else | |
3923 | RETPUSHYES; | |
3924 | } | |
3925 | else if (SM_OTHER_REF(PVAV)) { | |
10edeb5d | 3926 | AV * const other_av = (AV *) SvRV(Other); |
c445ea15 | 3927 | const I32 other_len = av_len(other_av) + 1; |
0d863452 RH |
3928 | I32 i; |
3929 | ||
10edeb5d | 3930 | if (HvUSEDKEYS((HV *) This) != other_len) |
0d863452 RH |
3931 | RETPUSHNO; |
3932 | ||
3933 | for(i = 0; i < other_len; ++i) { | |
c445ea15 | 3934 | SV ** const svp = av_fetch(other_av, i, FALSE); |
0d863452 RH |
3935 | char *key; |
3936 | STRLEN key_len; | |
3937 | ||
3938 | if (!svp) /* ??? When can this happen? */ | |
3939 | RETPUSHNO; | |
3940 | ||
3941 | key = SvPV(*svp, key_len); | |
10edeb5d | 3942 | if(!hv_exists((HV *) This, key, key_len)) |
0d863452 RH |
3943 | RETPUSHNO; |
3944 | } | |
3945 | RETPUSHYES; | |
3946 | } | |
3947 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 3948 | PMOP * const matcher = make_matcher(other_regex); |
0d863452 RH |
3949 | HE *he; |
3950 | ||
10edeb5d JH |
3951 | (void) hv_iterinit((HV *) This); |
3952 | while ( (he = hv_iternext((HV *) This)) ) { | |
0d863452 | 3953 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
10edeb5d | 3954 | (void) hv_iterinit((HV *) This); |
0d863452 RH |
3955 | destroy_matcher(matcher); |
3956 | RETPUSHYES; | |
3957 | } | |
3958 | } | |
3959 | destroy_matcher(matcher); | |
3960 | RETPUSHNO; | |
3961 | } | |
3962 | else { | |
10edeb5d | 3963 | if (hv_exists_ent((HV *) This, Other, 0)) |
0d863452 RH |
3964 | RETPUSHYES; |
3965 | else | |
3966 | RETPUSHNO; | |
3967 | } | |
3968 | } | |
3969 | else if (SM_REF(PVAV)) { | |
3970 | if (SM_OTHER_REF(PVAV)) { | |
10edeb5d JH |
3971 | AV *other_av = (AV *) SvRV(Other); |
3972 | if (av_len((AV *) This) != av_len(other_av)) | |
0d863452 RH |
3973 | RETPUSHNO; |
3974 | else { | |
3975 | I32 i; | |
c445ea15 | 3976 | const I32 other_len = av_len(other_av); |
0d863452 | 3977 | |
a0714e2c | 3978 | if (NULL == seen_this) { |
0d863452 RH |
3979 | seen_this = newHV(); |
3980 | (void) sv_2mortal((SV *) seen_this); | |
3981 | } | |
a0714e2c | 3982 | if (NULL == seen_other) { |
0d863452 RH |
3983 | seen_this = newHV(); |
3984 | (void) sv_2mortal((SV *) seen_other); | |
3985 | } | |
3986 | for(i = 0; i <= other_len; ++i) { | |
10edeb5d | 3987 | SV * const * const this_elem = av_fetch((AV *)This, i, FALSE); |
c445ea15 AL |
3988 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
3989 | ||
0d863452 RH |
3990 | if (!this_elem || !other_elem) { |
3991 | if (this_elem || other_elem) | |
3992 | RETPUSHNO; | |
3993 | } | |
3994 | else if (SM_SEEN_THIS(*this_elem) | |
3995 | || SM_SEEN_OTHER(*other_elem)) | |
3996 | { | |
3997 | if (*this_elem != *other_elem) | |
3998 | RETPUSHNO; | |
3999 | } | |
4000 | else { | |
4001 | hv_store_ent(seen_this, | |
98f4023c | 4002 | sv_2mortal(newSViv(PTR2IV(*this_elem))), |
0d863452 RH |
4003 | &PL_sv_undef, 0); |
4004 | hv_store_ent(seen_other, | |
98f4023c | 4005 | sv_2mortal(newSViv(PTR2IV(*other_elem))), |
0d863452 RH |
4006 | &PL_sv_undef, 0); |
4007 | PUSHs(*this_elem); | |
4008 | PUSHs(*other_elem); | |
4009 | ||
4010 | PUTBACK; | |
4011 | (void) do_smartmatch(seen_this, seen_other); | |
4012 | SPAGAIN; | |
4013 | ||
4014 | if (!SvTRUEx(POPs)) | |
4015 | RETPUSHNO; | |
4016 | } | |
4017 | } | |
4018 | RETPUSHYES; | |
4019 | } | |
4020 | } | |
4021 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4022 | PMOP * const matcher = make_matcher(other_regex); |
10edeb5d | 4023 | const I32 this_len = av_len((AV *) This); |
0d863452 | 4024 | I32 i; |
0d863452 RH |
4025 | |
4026 | for(i = 0; i <= this_len; ++i) { | |
10edeb5d | 4027 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); |
0d863452 RH |
4028 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4029 | destroy_matcher(matcher); | |
4030 | RETPUSHYES; | |
4031 | } | |
4032 | } | |
4033 | destroy_matcher(matcher); | |
4034 | RETPUSHNO; | |
4035 | } | |
10edeb5d | 4036 | else if (SvIOK(Other) || SvNOK(Other)) { |
0d863452 RH |
4037 | I32 i; |
4038 | ||
10edeb5d JH |
4039 | for(i = 0; i <= AvFILL((AV *) This); ++i) { |
4040 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); | |
0d863452 RH |
4041 | if (!svp) |
4042 | continue; | |
4043 | ||
10edeb5d | 4044 | PUSHs(Other); |
0d863452 RH |
4045 | PUSHs(*svp); |
4046 | PUTBACK; | |
a98fe34d | 4047 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4048 | (void) pp_i_eq(); |
4049 | else | |
4050 | (void) pp_eq(); | |
4051 | SPAGAIN; | |
4052 | if (SvTRUEx(POPs)) | |
4053 | RETPUSHYES; | |
4054 | } | |
4055 | RETPUSHNO; | |
4056 | } | |
10edeb5d JH |
4057 | else if (SvPOK(Other)) { |
4058 | const I32 this_len = av_len((AV *) This); | |
0d863452 | 4059 | I32 i; |
0d863452 RH |
4060 | |
4061 | for(i = 0; i <= this_len; ++i) { | |
10edeb5d | 4062 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); |
0d863452 RH |
4063 | if (!svp) |
4064 | continue; | |
4065 | ||
10edeb5d | 4066 | PUSHs(Other); |
0d863452 RH |
4067 | PUSHs(*svp); |
4068 | PUTBACK; | |
4069 | (void) pp_seq(); | |
4070 | SPAGAIN; | |
4071 | if (SvTRUEx(POPs)) | |
4072 | RETPUSHYES; | |
4073 | } | |
4074 | RETPUSHNO; | |
4075 | } | |
4076 | } | |
4077 | else if (!SvOK(d) || !SvOK(e)) { | |
4078 | if (!SvOK(d) && !SvOK(e)) | |
4079 | RETPUSHYES; | |
4080 | else | |
4081 | RETPUSHNO; | |
4082 | } | |
4083 | else if (SM_REGEX) { | |
c445ea15 | 4084 | PMOP * const matcher = make_matcher(this_regex); |
0d863452 RH |
4085 | |
4086 | PUTBACK; | |
10edeb5d | 4087 | PUSHs(matcher_matches_sv(matcher, Other) |
0d863452 RH |
4088 | ? &PL_sv_yes |
4089 | : &PL_sv_no); | |
4090 | destroy_matcher(matcher); | |
4091 | RETURN; | |
4092 | } | |
4093 | else if (SM_REF(PVCV)) { | |
4094 | I32 c; | |
4095 | /* This must be a null-prototyped sub, because we | |
4096 | already checked for the other kind. */ | |
4097 | ||
4098 | ENTER; | |
4099 | SAVETMPS; | |
4100 | PUSHMARK(SP); | |
4101 | PUTBACK; | |
10edeb5d | 4102 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
4103 | SPAGAIN; |
4104 | if (c == 0) | |
4105 | PUSHs(&PL_sv_undef); | |
4106 | else if (SvTEMP(TOPs)) | |
df528165 | 4107 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4108 | |
4109 | if (SM_OTHER_REF(PVCV)) { | |
4110 | /* This one has to be null-proto'd too. | |
4111 | Call both of 'em, and compare the results */ | |
4112 | PUSHMARK(SP); | |
10edeb5d | 4113 | c = call_sv(SvRV(Other), G_SCALAR); |
0d863452 RH |
4114 | SPAGAIN; |
4115 | if (c == 0) | |
4116 | PUSHs(&PL_sv_undef); | |
4117 | else if (SvTEMP(TOPs)) | |
df528165 | 4118 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4119 | FREETMPS; |
4120 | LEAVE; | |
4121 | PUTBACK; | |
4122 | return pp_eq(); | |
4123 | } | |
4124 | ||
4125 | FREETMPS; | |
4126 | LEAVE; | |
4127 | RETURN; | |
4128 | } | |
10edeb5d JH |
4129 | else if ( ((SvIOK(d) || SvNOK(d)) && (This = d) && (Other = e)) |
4130 | || ((SvIOK(e) || SvNOK(e)) && (This = e) && (Other = d)) ) | |
0d863452 | 4131 | { |
10edeb5d | 4132 | if (SvPOK(Other) && !looks_like_number(Other)) { |
0d863452 RH |
4133 | /* String comparison */ |
4134 | PUSHs(d); PUSHs(e); | |
4135 | PUTBACK; | |
4136 | return pp_seq(); | |
4137 | } | |
4138 | /* Otherwise, numeric comparison */ | |
4139 | PUSHs(d); PUSHs(e); | |
4140 | PUTBACK; | |
a98fe34d | 4141 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4142 | (void) pp_i_eq(); |
4143 | else | |
4144 | (void) pp_eq(); | |
4145 | SPAGAIN; | |
4146 | if (SvTRUEx(POPs)) | |
4147 | RETPUSHYES; | |
4148 | else | |
4149 | RETPUSHNO; | |
4150 | } | |
4151 | ||
4152 | /* As a last resort, use string comparison */ | |
4153 | PUSHs(d); PUSHs(e); | |
4154 | PUTBACK; | |
4155 | return pp_seq(); | |
4156 | } | |
4157 | ||
4158 | PP(pp_enterwhen) | |
4159 | { | |
4160 | dVAR; dSP; | |
4161 | register PERL_CONTEXT *cx; | |
4162 | const I32 gimme = GIMME_V; | |
4163 | ||
4164 | /* This is essentially an optimization: if the match | |
4165 | fails, we don't want to push a context and then | |
4166 | pop it again right away, so we skip straight | |
4167 | to the op that follows the leavewhen. | |
4168 | */ | |
4169 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4170 | return cLOGOP->op_other->op_next; | |
4171 | ||
4172 | ENTER; | |
4173 | SAVETMPS; | |
4174 | ||
4175 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4176 | PUSHWHEN(cx); | |
4177 | ||
4178 | RETURN; | |
4179 | } | |
4180 | ||
4181 | PP(pp_leavewhen) | |
4182 | { | |
4183 | dVAR; dSP; | |
4184 | register PERL_CONTEXT *cx; | |
4185 | I32 gimme; | |
4186 | SV **newsp; | |
4187 | PMOP *newpm; | |
4188 | ||
4189 | POPBLOCK(cx,newpm); | |
4190 | assert(CxTYPE(cx) == CXt_WHEN); | |
4191 | ||
4192 | SP = newsp; | |
4193 | PUTBACK; | |
4194 | ||
4195 | PL_curpm = newpm; /* pop $1 et al */ | |
4196 | ||
4197 | LEAVE; | |
4198 | return NORMAL; | |
4199 | } | |
4200 | ||
4201 | PP(pp_continue) | |
4202 | { | |
4203 | dVAR; | |
4204 | I32 cxix; | |
4205 | register PERL_CONTEXT *cx; | |
4206 | I32 inner; | |
4207 | ||
4208 | cxix = dopoptowhen(cxstack_ix); | |
4209 | if (cxix < 0) | |
4210 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4211 | if (cxix < cxstack_ix) | |
4212 | dounwind(cxix); | |
4213 | ||
4214 | /* clear off anything above the scope we're re-entering */ | |
4215 | inner = PL_scopestack_ix; | |
4216 | TOPBLOCK(cx); | |
4217 | if (PL_scopestack_ix < inner) | |
4218 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4219 | PL_curcop = cx->blk_oldcop; | |
4220 | return cx->blk_givwhen.leave_op; | |
4221 | } | |
4222 | ||
4223 | PP(pp_break) | |
4224 | { | |
4225 | dVAR; | |
4226 | I32 cxix; | |
4227 | register PERL_CONTEXT *cx; | |
4228 | I32 inner; | |
4229 | ||
4230 | cxix = dopoptogiven(cxstack_ix); | |
4231 | if (cxix < 0) { | |
4232 | if (PL_op->op_flags & OPf_SPECIAL) | |
4233 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4234 | else | |
4235 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4236 | } | |
4237 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4238 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4239 | ||
4240 | if (cxix < cxstack_ix) | |
4241 | dounwind(cxix); | |
4242 | ||
4243 | /* clear off anything above the scope we're re-entering */ | |
4244 | inner = PL_scopestack_ix; | |
4245 | TOPBLOCK(cx); | |
4246 | if (PL_scopestack_ix < inner) | |
4247 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4248 | PL_curcop = cx->blk_oldcop; | |
4249 | ||
4250 | if (CxFOREACH(cx)) | |
022eaa24 | 4251 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 RH |
4252 | else |
4253 | return cx->blk_givwhen.leave_op; | |
4254 | } | |
4255 | ||
a1b95068 | 4256 | STATIC OP * |
cea2e8a9 | 4257 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4258 | { |
4259 | STRLEN len; | |
4260 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4261 | register char * const send = s + len; |
4262 | register char *base = NULL; | |
a0d0e21e | 4263 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4264 | bool noblank = FALSE; |
4265 | bool repeat = FALSE; | |
a0d0e21e | 4266 | bool postspace = FALSE; |
dea28490 JJ |
4267 | U32 *fops; |
4268 | register U32 *fpc; | |
cbbf8932 | 4269 | U32 *linepc = NULL; |
a0d0e21e LW |
4270 | register I32 arg; |
4271 | bool ischop; | |
a1b95068 WL |
4272 | bool unchopnum = FALSE; |
4273 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4274 | |
55497cff | 4275 | if (len == 0) |
cea2e8a9 | 4276 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4277 | |
815f25c6 DM |
4278 | /* estimate the buffer size needed */ |
4279 | for (base = s; s <= send; s++) { | |
a1b95068 | 4280 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4281 | maxops += 10; |
4282 | } | |
4283 | s = base; | |
c445ea15 | 4284 | base = NULL; |
815f25c6 | 4285 | |
a02a5408 | 4286 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4287 | fpc = fops; |
4288 | ||
4289 | if (s < send) { | |
4290 | linepc = fpc; | |
4291 | *fpc++ = FF_LINEMARK; | |
4292 | noblank = repeat = FALSE; | |
4293 | base = s; | |
4294 | } | |
4295 | ||
4296 | while (s <= send) { | |
4297 | switch (*s++) { | |
4298 | default: | |
4299 | skipspaces = 0; | |
4300 | continue; | |
4301 | ||
4302 | case '~': | |
4303 | if (*s == '~') { | |
4304 | repeat = TRUE; | |
4305 | *s = ' '; | |
4306 | } | |
4307 | noblank = TRUE; | |
4308 | s[-1] = ' '; | |
4309 | /* FALL THROUGH */ | |
4310 | case ' ': case '\t': | |
4311 | skipspaces++; | |
4312 | continue; | |
a1b95068 WL |
4313 | case 0: |
4314 | if (s < send) { | |
4315 | skipspaces = 0; | |
4316 | continue; | |
4317 | } /* else FALL THROUGH */ | |
4318 | case '\n': | |
a0d0e21e LW |
4319 | arg = s - base; |
4320 | skipspaces++; | |
4321 | arg -= skipspaces; | |
4322 | if (arg) { | |
5f05dabc | 4323 | if (postspace) |
a0d0e21e | 4324 | *fpc++ = FF_SPACE; |
a0d0e21e | 4325 | *fpc++ = FF_LITERAL; |
eb160463 | 4326 | *fpc++ = (U16)arg; |
a0d0e21e | 4327 | } |
5f05dabc | 4328 | postspace = FALSE; |
a0d0e21e LW |
4329 | if (s <= send) |
4330 | skipspaces--; | |
4331 | if (skipspaces) { | |
4332 | *fpc++ = FF_SKIP; | |
eb160463 | 4333 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4334 | } |
4335 | skipspaces = 0; | |
4336 | if (s <= send) | |
4337 | *fpc++ = FF_NEWLINE; | |
4338 | if (noblank) { | |
4339 | *fpc++ = FF_BLANK; | |
4340 | if (repeat) | |
4341 | arg = fpc - linepc + 1; | |
4342 | else | |
4343 | arg = 0; | |
eb160463 | 4344 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4345 | } |
4346 | if (s < send) { | |
4347 | linepc = fpc; | |
4348 | *fpc++ = FF_LINEMARK; | |
4349 | noblank = repeat = FALSE; | |
4350 | base = s; | |
4351 | } | |
4352 | else | |
4353 | s++; | |
4354 | continue; | |
4355 | ||
4356 | case '@': | |
4357 | case '^': | |
4358 | ischop = s[-1] == '^'; | |
4359 | ||
4360 | if (postspace) { | |
4361 | *fpc++ = FF_SPACE; | |
4362 | postspace = FALSE; | |
4363 | } | |
4364 | arg = (s - base) - 1; | |
4365 | if (arg) { | |
4366 | *fpc++ = FF_LITERAL; | |
eb160463 | 4367 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4368 | } |
4369 | ||
4370 | base = s - 1; | |
4371 | *fpc++ = FF_FETCH; | |
4372 | if (*s == '*') { | |
4373 | s++; | |
a1b95068 WL |
4374 | *fpc++ = 2; /* skip the @* or ^* */ |
4375 | if (ischop) { | |
4376 | *fpc++ = FF_LINESNGL; | |
4377 | *fpc++ = FF_CHOP; | |
4378 | } else | |
4379 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4380 | } |
4381 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4382 | arg = ischop ? 512 : 0; | |
4383 | base = s - 1; | |
4384 | while (*s == '#') | |
4385 | s++; | |
4386 | if (*s == '.') { | |
06b5626a | 4387 | const char * const f = ++s; |
a0d0e21e LW |
4388 | while (*s == '#') |
4389 | s++; | |
4390 | arg |= 256 + (s - f); | |
4391 | } | |
4392 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4393 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4394 | *fpc++ = (U16)arg; |
a1b95068 | 4395 | unchopnum |= ! ischop; |
784707d5 JP |
4396 | } |
4397 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4398 | arg = ischop ? 512 : 0; | |
4399 | base = s - 1; | |
4400 | s++; /* skip the '0' first */ | |
4401 | while (*s == '#') | |
4402 | s++; | |
4403 | if (*s == '.') { | |
06b5626a | 4404 | const char * const f = ++s; |
784707d5 JP |
4405 | while (*s == '#') |
4406 | s++; | |
4407 | arg |= 256 + (s - f); | |
4408 | } | |
4409 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4410 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4411 | *fpc++ = (U16)arg; |
a1b95068 | 4412 | unchopnum |= ! ischop; |
a0d0e21e LW |
4413 | } |
4414 | else { | |
4415 | I32 prespace = 0; | |
4416 | bool ismore = FALSE; | |
4417 | ||
4418 | if (*s == '>') { | |
4419 | while (*++s == '>') ; | |
4420 | prespace = FF_SPACE; | |
4421 | } | |
4422 | else if (*s == '|') { | |
4423 | while (*++s == '|') ; | |
4424 | prespace = FF_HALFSPACE; | |
4425 | postspace = TRUE; | |
4426 | } | |
4427 | else { | |
4428 | if (*s == '<') | |
4429 | while (*++s == '<') ; | |
4430 | postspace = TRUE; | |
4431 | } | |
4432 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4433 | s += 3; | |
4434 | ismore = TRUE; | |
4435 | } | |
4436 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4437 | ||
4438 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4439 | ||
4440 | if (prespace) | |
eb160463 | 4441 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4442 | *fpc++ = FF_ITEM; |
4443 | if (ismore) | |
4444 | *fpc++ = FF_MORE; | |
4445 | if (ischop) | |
4446 | *fpc++ = FF_CHOP; | |
4447 | } | |
4448 | base = s; | |
4449 | skipspaces = 0; | |
4450 | continue; | |
4451 | } | |
4452 | } | |
4453 | *fpc++ = FF_END; | |
4454 | ||
815f25c6 | 4455 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4456 | arg = fpc - fops; |
4457 | { /* need to jump to the next word */ | |
4458 | int z; | |
4459 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4460 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4461 | s = SvPVX(sv) + SvCUR(sv) + z; |
4462 | } | |
dea28490 | 4463 | Copy(fops, s, arg, U32); |
a0d0e21e | 4464 | Safefree(fops); |
c445ea15 | 4465 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4466 | SvCOMPILED_on(sv); |
a1b95068 | 4467 | |
bfed75c6 | 4468 | if (unchopnum && repeat) |
a1b95068 WL |
4469 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4470 | return 0; | |
4471 | } | |
4472 | ||
4473 | ||
4474 | STATIC bool | |
4475 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4476 | { | |
4477 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4478 | NV pwr = 1; | |
4479 | NV eps = 0.5; | |
4480 | bool res = FALSE; | |
4481 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4482 | ||
4483 | if (frcsize & 256) | |
4484 | intsize--; | |
4485 | frcsize &= 255; | |
4486 | intsize -= frcsize; | |
4487 | ||
4488 | while (intsize--) pwr *= 10.0; | |
4489 | while (frcsize--) eps /= 10.0; | |
4490 | ||
4491 | if( value >= 0 ){ | |
4492 | if (value + eps >= pwr) | |
4493 | res = TRUE; | |
4494 | } else { | |
4495 | if (value - eps <= -pwr) | |
4496 | res = TRUE; | |
4497 | } | |
4498 | return res; | |
a0d0e21e | 4499 | } |
4e35701f | 4500 | |
bbed91b5 | 4501 | static I32 |
0bd48802 | 4502 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4503 | { |
27da23d5 | 4504 | dVAR; |
0bd48802 | 4505 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4506 | const int filter_has_file = IoLINES(datasv); |
0bd48802 AL |
4507 | SV * const filter_state = (SV *)IoTOP_GV(datasv); |
4508 | SV * const filter_sub = (SV *)IoBOTTOM_GV(datasv); | |
941a98a0 | 4509 | int status = 0; |
ec0b63d7 | 4510 | SV *upstream; |
941a98a0 | 4511 | STRLEN got_len; |
95b63a38 | 4512 | const char *got_p = NULL; |
941a98a0 | 4513 | const char *prune_from = NULL; |
34113e50 | 4514 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4515 | STRLEN umaxlen; |
4516 | ||
4517 | assert(maxlen >= 0); | |
4518 | umaxlen = maxlen; | |
5675696b | 4519 | |
bbed91b5 KF |
4520 | /* I was having segfault trouble under Linux 2.2.5 after a |
4521 | parse error occured. (Had to hack around it with a test | |
4522 | for PL_error_count == 0.) Solaris doesn't segfault -- | |
4523 | not sure where the trouble is yet. XXX */ | |
4524 | ||
941a98a0 | 4525 | if (IoFMT_GV(datasv)) { |
937b367d NC |
4526 | SV *const cache = (SV *)IoFMT_GV(datasv); |
4527 | if (SvOK(cache)) { | |
4528 | STRLEN cache_len; | |
4529 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4530 | STRLEN take = 0; |
4531 | ||
bb7a0f54 | 4532 | if (umaxlen) { |
941a98a0 NC |
4533 | /* Running in block mode and we have some cached data already. |
4534 | */ | |
bb7a0f54 | 4535 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4536 | /* In fact, so much data we don't even need to call |
4537 | filter_read. */ | |
bb7a0f54 | 4538 | take = umaxlen; |
941a98a0 NC |
4539 | } |
4540 | } else { | |
10edeb5d JH |
4541 | const char *const first_nl = |
4542 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
4543 | if (first_nl) { |
4544 | take = first_nl + 1 - cache_p; | |
4545 | } | |
4546 | } | |
4547 | if (take) { | |
4548 | sv_catpvn(buf_sv, cache_p, take); | |
4549 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4550 | /* Definately not EOF */ |
4551 | return 1; | |
4552 | } | |
941a98a0 | 4553 | |
937b367d | 4554 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4555 | if (umaxlen) { |
4556 | umaxlen -= cache_len; | |
941a98a0 | 4557 | } |
937b367d | 4558 | SvOK_off(cache); |
34113e50 | 4559 | read_from_cache = TRUE; |
937b367d NC |
4560 | } |
4561 | } | |
ec0b63d7 | 4562 | |
34113e50 NC |
4563 | /* Filter API says that the filter appends to the contents of the buffer. |
4564 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4565 | then clearly what it contains is already filtered by this filter, so we | |
4566 | don't want to pass it in a second time. | |
4567 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4568 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4569 | ? sv_newmortal() : buf_sv; | |
4570 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4571 | |
bbed91b5 | 4572 | if (filter_has_file) { |
67e70b33 | 4573 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4574 | } |
4575 | ||
34113e50 | 4576 | if (filter_sub && status >= 0) { |
39644a26 | 4577 | dSP; |
bbed91b5 KF |
4578 | int count; |
4579 | ||
4580 | ENTER; | |
4581 | SAVE_DEFSV; | |
4582 | SAVETMPS; | |
4583 | EXTEND(SP, 2); | |
4584 | ||
5675696b | 4585 | DEFSV = upstream; |
bbed91b5 | 4586 | PUSHMARK(SP); |
67e70b33 | 4587 | PUSHs(sv_2mortal(newSViv(0))); |
bbed91b5 KF |
4588 | if (filter_state) { |
4589 | PUSHs(filter_state); | |
4590 | } | |
4591 | PUTBACK; | |
4592 | count = call_sv(filter_sub, G_SCALAR); | |
4593 | SPAGAIN; | |
4594 | ||
4595 | if (count > 0) { | |
4596 | SV *out = POPs; | |
4597 | if (SvOK(out)) { | |
941a98a0 | 4598 | status = SvIV(out); |
bbed91b5 KF |
4599 | } |
4600 | } | |
4601 | ||
4602 | PUTBACK; | |
4603 | FREETMPS; | |
4604 | LEAVE; | |
4605 | } | |
4606 | ||
941a98a0 NC |
4607 | if(SvOK(upstream)) { |
4608 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4609 | if (umaxlen) { |
4610 | if (got_len > umaxlen) { | |
4611 | prune_from = got_p + umaxlen; | |
937b367d | 4612 | } |
941a98a0 | 4613 | } else { |
10edeb5d JH |
4614 | const char *const first_nl = |
4615 | (const char *)memchr(got_p, '\n', got_len); | |
941a98a0 NC |
4616 | if (first_nl && first_nl + 1 < got_p + got_len) { |
4617 | /* There's a second line here... */ | |
4618 | prune_from = first_nl + 1; | |
937b367d | 4619 | } |
937b367d NC |
4620 | } |
4621 | } | |
941a98a0 NC |
4622 | if (prune_from) { |
4623 | /* Oh. Too long. Stuff some in our cache. */ | |
4624 | STRLEN cached_len = got_p + got_len - prune_from; | |
4625 | SV *cache = (SV *)IoFMT_GV(datasv); | |
4626 | ||
4627 | if (!cache) { | |
bb7a0f54 | 4628 | IoFMT_GV(datasv) = (GV*) (cache = newSV(got_len - umaxlen)); |
941a98a0 NC |
4629 | } else if (SvOK(cache)) { |
4630 | /* Cache should be empty. */ | |
4631 | assert(!SvCUR(cache)); | |
4632 | } | |
4633 | ||
4634 | sv_setpvn(cache, prune_from, cached_len); | |
4635 | /* If you ask for block mode, you may well split UTF-8 characters. | |
4636 | "If it breaks, you get to keep both parts" | |
4637 | (Your code is broken if you don't put them back together again | |
4638 | before something notices.) */ | |
4639 | if (SvUTF8(upstream)) { | |
4640 | SvUTF8_on(cache); | |
4641 | } | |
4642 | SvCUR_set(upstream, got_len - cached_len); | |
4643 | /* Can't yet be EOF */ | |
4644 | if (status == 0) | |
4645 | status = 1; | |
4646 | } | |
937b367d | 4647 | |
34113e50 NC |
4648 | /* If they are at EOF but buf_sv has something in it, then they may never |
4649 | have touched the SV upstream, so it may be undefined. If we naively | |
4650 | concatenate it then we get a warning about use of uninitialised value. | |
4651 | */ | |
4652 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
4653 | sv_catsv(buf_sv, upstream); |
4654 | } | |
4655 | ||
941a98a0 | 4656 | if (status <= 0) { |
bbed91b5 | 4657 | IoLINES(datasv) = 0; |
937b367d | 4658 | SvREFCNT_dec(IoFMT_GV(datasv)); |
bbed91b5 KF |
4659 | if (filter_state) { |
4660 | SvREFCNT_dec(filter_state); | |
a0714e2c | 4661 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
4662 | } |
4663 | if (filter_sub) { | |
4664 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 4665 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 4666 | } |
0bd48802 | 4667 | filter_del(S_run_user_filter); |
bbed91b5 | 4668 | } |
34113e50 NC |
4669 | if (status == 0 && read_from_cache) { |
4670 | /* If we read some data from the cache (and by getting here it implies | |
4671 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
4672 | report that to our caller. */ | |
4673 | return 1; | |
4674 | } | |
941a98a0 | 4675 | return status; |
bbed91b5 | 4676 | } |
84d4ea48 | 4677 | |
be4b629d CN |
4678 | /* perhaps someone can come up with a better name for |
4679 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 4680 | static bool |
5f66b61c | 4681 | S_path_is_absolute(const char *name) |
be4b629d CN |
4682 | { |
4683 | if (PERL_FILE_IS_ABSOLUTE(name) | |
4684 | #ifdef MACOS_TRADITIONAL | |
0bd48802 | 4685 | || (*name == ':') |
be4b629d CN |
4686 | #else |
4687 | || (*name == '.' && (name[1] == '/' || | |
0bd48802 | 4688 | (name[1] == '.' && name[2] == '/'))) |
be4b629d | 4689 | #endif |
0bd48802 | 4690 | ) |
be4b629d CN |
4691 | { |
4692 | return TRUE; | |
4693 | } | |
4694 | else | |
4695 | return FALSE; | |
4696 | } | |
241d1a3b NC |
4697 | |
4698 | /* | |
4699 | * Local variables: | |
4700 | * c-indentation-style: bsd | |
4701 | * c-basic-offset: 4 | |
4702 | * indent-tabs-mode: t | |
4703 | * End: | |
4704 | * | |
37442d52 RGS |
4705 | * ex: set ts=8 sts=4 sw=4 noet: |
4706 | */ |