Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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; |
bfed75c6 | 79 | |
4b5a0d1c | 80 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 81 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
82 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
83 | if (PL_op->op_flags & OPf_STACKED) { | |
84 | dMARK; | |
85 | SP = MARK; | |
86 | } | |
87 | else | |
88 | (void)POPs; | |
89 | RETURN; | |
90 | } | |
513629ba | 91 | #endif |
131b3ad0 DM |
92 | if (PL_op->op_flags & OPf_STACKED) { |
93 | /* multiple args; concatentate them */ | |
94 | dMARK; dORIGMARK; | |
95 | tmpstr = PAD_SV(ARGTARG); | |
96 | sv_setpvn(tmpstr, "", 0); | |
97 | while (++MARK <= SP) { | |
98 | if (PL_amagic_generation) { | |
99 | SV *sv; | |
100 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(*MARK)) && | |
101 | (sv = amagic_call(tmpstr, *MARK, concat_amg, AMGf_assign))) | |
102 | { | |
103 | sv_setsv(tmpstr, sv); | |
104 | continue; | |
105 | } | |
106 | } | |
107 | sv_catsv(tmpstr, *MARK); | |
108 | } | |
109 | SvSETMAGIC(tmpstr); | |
110 | SP = ORIGMARK; | |
111 | } | |
112 | else | |
113 | tmpstr = POPs; | |
513629ba | 114 | |
b3eb6a9b | 115 | if (SvROK(tmpstr)) { |
d8f6592e | 116 | SV * const sv = SvRV(tmpstr); |
c277df42 | 117 | if(SvMAGICAL(sv)) |
14befaf4 | 118 | mg = mg_find(sv, PERL_MAGIC_qr); |
c277df42 | 119 | } |
b3eb6a9b | 120 | if (mg) { |
44f8325f | 121 | regexp * const re = (regexp *)mg->mg_obj; |
aaa362c4 RS |
122 | ReREFCNT_dec(PM_GETRE(pm)); |
123 | PM_SETRE(pm, ReREFCNT_inc(re)); | |
c277df42 IZ |
124 | } |
125 | else { | |
e62f0680 NC |
126 | STRLEN len; |
127 | const char *t = SvPV_const(tmpstr, len); | |
d8f6592e | 128 | regexp * const re = PM_GETRE(pm); |
c277df42 | 129 | |
20408e3c | 130 | /* Check against the last compiled regexp. */ |
d8f6592e AL |
131 | if (!re || !re->precomp || re->prelen != (I32)len || |
132 | memNE(re->precomp, t, len)) | |
85aff577 | 133 | { |
664e119d RGS |
134 | const regexp_engine *eng = re ? re->engine : NULL; |
135 | ||
d8f6592e AL |
136 | if (re) { |
137 | ReREFCNT_dec(re); | |
4608196e | 138 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
1e2e3d02 YO |
139 | } else if (PL_curcop->cop_hints_hash) { |
140 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
141 | "regcomp", 7, 0, 0); | |
142 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
143 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 144 | } |
664e119d | 145 | |
533c011a | 146 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 147 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 148 | |
c277df42 | 149 | pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */ |
84e09d5e JH |
150 | if (DO_UTF8(tmpstr)) |
151 | pm->op_pmdynflags |= PMdf_DYN_UTF8; | |
152 | else { | |
153 | pm->op_pmdynflags &= ~PMdf_DYN_UTF8; | |
154 | if (pm->op_pmdynflags & PMdf_UTF8) | |
155 | t = (char*)bytes_to_utf8((U8*)t, &len); | |
156 | } | |
1e2e3d02 YO |
157 | if (eng) |
158 | PM_SETRE(pm, CALLREGCOMP_ENG(eng,(char *)t, (char *)t + len, pm)); | |
159 | else | |
160 | PM_SETRE(pm, CALLREGCOMP((char *)t, (char *)t + len, pm)); | |
161 | ||
84e09d5e JH |
162 | if (!DO_UTF8(tmpstr) && (pm->op_pmdynflags & PMdf_UTF8)) |
163 | Safefree(t); | |
f86aaa29 | 164 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 165 | inside tie/overload accessors. */ |
c277df42 | 166 | } |
4633a7c4 | 167 | } |
a0d0e21e | 168 | |
72311751 | 169 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
170 | if (PL_tainting) { |
171 | if (PL_tainted) | |
72311751 GS |
172 | pm->op_pmdynflags |= PMdf_TAINTED; |
173 | else | |
174 | pm->op_pmdynflags &= ~PMdf_TAINTED; | |
175 | } | |
176 | #endif | |
177 | ||
aaa362c4 | 178 | if (!PM_GETRE(pm)->prelen && PL_curpm) |
3280af22 | 179 | pm = PL_curpm; |
17cbf7cc AMS |
180 | else if (strEQ("\\s+", PM_GETRE(pm)->precomp)) |
181 | pm->op_pmflags |= PMf_WHITE; | |
16bdb4ac | 182 | else |
17cbf7cc | 183 | pm->op_pmflags &= ~PMf_WHITE; |
a0d0e21e | 184 | |
2360cd68 | 185 | /* XXX runtime compiled output needs to move to the pad */ |
a0d0e21e | 186 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 187 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
3db8f154 | 188 | #if !defined(USE_ITHREADS) |
2360cd68 | 189 | /* XXX can't change the optree at runtime either */ |
533c011a | 190 | cLOGOP->op_first->op_next = PL_op->op_next; |
2360cd68 | 191 | #endif |
a0d0e21e LW |
192 | } |
193 | RETURN; | |
194 | } | |
195 | ||
196 | PP(pp_substcont) | |
197 | { | |
97aff369 | 198 | dVAR; |
39644a26 | 199 | dSP; |
c09156bb | 200 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
201 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
202 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
203 | register char *s = cx->sb_s; |
204 | register char *m = cx->sb_m; | |
205 | char *orig = cx->sb_orig; | |
901017d6 | 206 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 207 | SV *nsv = NULL; |
988e6e7e AE |
208 | REGEXP *old = PM_GETRE(pm); |
209 | if(old != rx) { | |
bfed75c6 | 210 | if(old) |
988e6e7e | 211 | ReREFCNT_dec(old); |
e22ae1e2 | 212 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
213 | } |
214 | ||
d9f97599 | 215 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 216 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 217 | |
a0d0e21e | 218 | if (cx->sb_iters++) { |
a3b680e6 | 219 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 220 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 221 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 222 | |
48c036b1 GS |
223 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
224 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 225 | sv_catsv(dstr, POPs); |
8ff629d9 | 226 | FREETMPS; /* Prevent excess tmp stack */ |
a0d0e21e LW |
227 | |
228 | /* Are we done */ | |
f9f4320a | 229 | if (cx->sb_once || !CALLREGEXEC(rx, s, cx->sb_strend, orig, |
9661b544 | 230 | s == m, cx->sb_targ, NULL, |
22e551b9 | 231 | ((cx->sb_rflags & REXEC_COPY_STR) |
cf93c79d IZ |
232 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) |
233 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 234 | { |
823a54a3 | 235 | SV * const targ = cx->sb_targ; |
748a9306 | 236 | |
078c425b JH |
237 | assert(cx->sb_strend >= s); |
238 | if(cx->sb_strend > s) { | |
239 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
240 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
241 | else | |
242 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
243 | } | |
48c036b1 | 244 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 245 | |
f8c7b90f | 246 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
247 | if (SvIsCOW(targ)) { |
248 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
249 | } else | |
250 | #endif | |
251 | { | |
8bd4d4c5 | 252 | SvPV_free(targ); |
ed252734 | 253 | } |
f880fe2f | 254 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
255 | SvCUR_set(targ, SvCUR(dstr)); |
256 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
257 | if (DO_UTF8(dstr)) |
258 | SvUTF8_on(targ); | |
6136c704 | 259 | SvPV_set(dstr, NULL); |
48c036b1 GS |
260 | |
261 | TAINT_IF(cx->sb_rxtainted & 1); | |
22e13caa | 262 | PUSHs(sv_2mortal(newSViv(saviters - 1))); |
48c036b1 | 263 | |
ffc61ed2 | 264 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 265 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 266 | SvSETMAGIC(targ); |
9212bbba | 267 | SvTAINT(targ); |
5cd24f17 | 268 | |
4633a7c4 | 269 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
270 | POPSUBST(cx); |
271 | RETURNOP(pm->op_next); | |
272 | } | |
8e5e9ebe | 273 | cx->sb_iters = saviters; |
a0d0e21e | 274 | } |
cf93c79d | 275 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
276 | m = s; |
277 | s = orig; | |
cf93c79d | 278 | cx->sb_orig = orig = rx->subbeg; |
a0d0e21e LW |
279 | s = orig + (m - s); |
280 | cx->sb_strend = s + (cx->sb_strend - m); | |
281 | } | |
cf93c79d | 282 | cx->sb_m = m = rx->startp[0] + orig; |
db79b45b | 283 | if (m > s) { |
bfed75c6 | 284 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
285 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
286 | else | |
287 | sv_catpvn(dstr, s, m-s); | |
288 | } | |
cf93c79d | 289 | cx->sb_s = rx->endp[0] + orig; |
084916e3 | 290 | { /* Update the pos() information. */ |
44f8325f | 291 | SV * const sv = cx->sb_targ; |
084916e3 JH |
292 | MAGIC *mg; |
293 | I32 i; | |
294 | if (SvTYPE(sv) < SVt_PVMG) | |
862a34c6 | 295 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 296 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 297 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 298 | if (SvIsCOW(sv)) |
d83f0a82 NC |
299 | sv_force_normal_flags(sv, 0); |
300 | #endif | |
301 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
302 | NULL, 0); | |
084916e3 JH |
303 | } |
304 | i = m - orig; | |
305 | if (DO_UTF8(sv)) | |
306 | sv_pos_b2u(sv, &i); | |
307 | mg->mg_len = i; | |
308 | } | |
988e6e7e | 309 | if (old != rx) |
454f1e26 | 310 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
311 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
312 | rxres_save(&cx->sb_rxres, rx); | |
a0d0e21e LW |
313 | RETURNOP(pm->op_pmreplstart); |
314 | } | |
315 | ||
c90c0ff4 | 316 | void |
864dbfa3 | 317 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 318 | { |
319 | UV *p = (UV*)*rsp; | |
320 | U32 i; | |
96a5add6 | 321 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 322 | |
d9f97599 | 323 | if (!p || p[1] < rx->nparens) { |
f8c7b90f | 324 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
325 | i = 7 + rx->nparens * 2; |
326 | #else | |
d9f97599 | 327 | i = 6 + rx->nparens * 2; |
ed252734 | 328 | #endif |
c90c0ff4 | 329 | if (!p) |
a02a5408 | 330 | Newx(p, i, UV); |
c90c0ff4 | 331 | else |
332 | Renew(p, i, UV); | |
333 | *rsp = (void*)p; | |
334 | } | |
335 | ||
c445ea15 | 336 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? rx->subbeg : NULL); |
cf93c79d | 337 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 338 | |
f8c7b90f | 339 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 | 340 | *p++ = PTR2UV(rx->saved_copy); |
c445ea15 | 341 | rx->saved_copy = NULL; |
ed252734 NC |
342 | #endif |
343 | ||
d9f97599 | 344 | *p++ = rx->nparens; |
c90c0ff4 | 345 | |
56431972 | 346 | *p++ = PTR2UV(rx->subbeg); |
cf93c79d | 347 | *p++ = (UV)rx->sublen; |
d9f97599 GS |
348 | for (i = 0; i <= rx->nparens; ++i) { |
349 | *p++ = (UV)rx->startp[i]; | |
350 | *p++ = (UV)rx->endp[i]; | |
c90c0ff4 | 351 | } |
352 | } | |
353 | ||
354 | void | |
864dbfa3 | 355 | Perl_rxres_restore(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 356 | { |
357 | UV *p = (UV*)*rsp; | |
358 | U32 i; | |
96a5add6 | 359 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 360 | |
ed252734 | 361 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 362 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 363 | *p++ = 0; |
364 | ||
f8c7b90f | 365 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
366 | if (rx->saved_copy) |
367 | SvREFCNT_dec (rx->saved_copy); | |
368 | rx->saved_copy = INT2PTR(SV*,*p); | |
369 | *p++ = 0; | |
370 | #endif | |
371 | ||
d9f97599 | 372 | rx->nparens = *p++; |
c90c0ff4 | 373 | |
56431972 | 374 | rx->subbeg = INT2PTR(char*,*p++); |
cf93c79d | 375 | rx->sublen = (I32)(*p++); |
d9f97599 | 376 | for (i = 0; i <= rx->nparens; ++i) { |
cf93c79d IZ |
377 | rx->startp[i] = (I32)(*p++); |
378 | rx->endp[i] = (I32)(*p++); | |
c90c0ff4 | 379 | } |
380 | } | |
381 | ||
382 | void | |
864dbfa3 | 383 | Perl_rxres_free(pTHX_ void **rsp) |
c90c0ff4 | 384 | { |
44f8325f | 385 | UV * const p = (UV*)*rsp; |
96a5add6 | 386 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 387 | |
388 | if (p) { | |
94010e71 NC |
389 | #ifdef PERL_POISON |
390 | void *tmp = INT2PTR(char*,*p); | |
391 | Safefree(tmp); | |
392 | if (*p) | |
7e337ee0 | 393 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 394 | #else |
56431972 | 395 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 396 | #endif |
f8c7b90f | 397 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
398 | if (p[1]) { |
399 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
400 | } | |
401 | #endif | |
c90c0ff4 | 402 | Safefree(p); |
4608196e | 403 | *rsp = NULL; |
c90c0ff4 | 404 | } |
405 | } | |
406 | ||
a0d0e21e LW |
407 | PP(pp_formline) |
408 | { | |
97aff369 | 409 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 410 | register SV * const tmpForm = *++MARK; |
dea28490 | 411 | register U32 *fpc; |
a0d0e21e | 412 | register char *t; |
245d4a47 | 413 | const char *f; |
a0d0e21e | 414 | register I32 arg; |
c445ea15 AL |
415 | register SV *sv = NULL; |
416 | const char *item = NULL; | |
9c5ffd7c JH |
417 | I32 itemsize = 0; |
418 | I32 fieldsize = 0; | |
a0d0e21e | 419 | I32 lines = 0; |
c445ea15 AL |
420 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
421 | const char *chophere = NULL; | |
422 | char *linemark = NULL; | |
65202027 | 423 | NV value; |
9c5ffd7c | 424 | bool gotsome = FALSE; |
a0d0e21e | 425 | STRLEN len; |
823a54a3 | 426 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 427 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
428 | bool item_is_utf8 = FALSE; |
429 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 430 | SV * nsv = NULL; |
cbbf8932 | 431 | OP * parseres = NULL; |
bfed75c6 | 432 | const char *fmt; |
a1b95068 | 433 | bool oneline; |
a0d0e21e | 434 | |
76e3520e | 435 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
436 | if (SvREADONLY(tmpForm)) { |
437 | SvREADONLY_off(tmpForm); | |
a1b95068 | 438 | parseres = doparseform(tmpForm); |
445b3f51 GS |
439 | SvREADONLY_on(tmpForm); |
440 | } | |
441 | else | |
a1b95068 WL |
442 | parseres = doparseform(tmpForm); |
443 | if (parseres) | |
444 | return parseres; | |
a0d0e21e | 445 | } |
3280af22 | 446 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
447 | if (DO_UTF8(PL_formtarget)) |
448 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 449 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 450 | t += len; |
245d4a47 | 451 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 452 | /* need to jump to the next word */ |
245d4a47 | 453 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
454 | |
455 | for (;;) { | |
456 | DEBUG_f( { | |
bfed75c6 | 457 | const char *name = "???"; |
a0d0e21e LW |
458 | arg = -1; |
459 | switch (*fpc) { | |
460 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
461 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
462 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
463 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
464 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
465 | ||
466 | case FF_CHECKNL: name = "CHECKNL"; break; | |
467 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
468 | case FF_SPACE: name = "SPACE"; break; | |
469 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
470 | case FF_ITEM: name = "ITEM"; break; | |
471 | case FF_CHOP: name = "CHOP"; break; | |
472 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
473 | case FF_NEWLINE: name = "NEWLINE"; break; | |
474 | case FF_MORE: name = "MORE"; break; | |
475 | case FF_LINEMARK: name = "LINEMARK"; break; | |
476 | case FF_END: name = "END"; break; | |
bfed75c6 | 477 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 478 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
479 | } |
480 | if (arg >= 0) | |
bf49b057 | 481 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 482 | else |
bf49b057 | 483 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 484 | } ); |
a0d0e21e LW |
485 | switch (*fpc++) { |
486 | case FF_LINEMARK: | |
487 | linemark = t; | |
a0d0e21e LW |
488 | lines++; |
489 | gotsome = FALSE; | |
490 | break; | |
491 | ||
492 | case FF_LITERAL: | |
493 | arg = *fpc++; | |
1bd51a4c | 494 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 495 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
496 | *t = '\0'; |
497 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
498 | t = SvEND(PL_formtarget); | |
1bd51a4c IH |
499 | break; |
500 | } | |
501 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 502 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
503 | *t = '\0'; |
504 | sv_utf8_upgrade(PL_formtarget); | |
505 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
506 | t = SvEND(PL_formtarget); | |
507 | targ_is_utf8 = TRUE; | |
508 | } | |
a0d0e21e LW |
509 | while (arg--) |
510 | *t++ = *f++; | |
511 | break; | |
512 | ||
513 | case FF_SKIP: | |
514 | f += *fpc++; | |
515 | break; | |
516 | ||
517 | case FF_FETCH: | |
518 | arg = *fpc++; | |
519 | f += arg; | |
520 | fieldsize = arg; | |
521 | ||
522 | if (MARK < SP) | |
523 | sv = *++MARK; | |
524 | else { | |
3280af22 | 525 | sv = &PL_sv_no; |
599cee73 | 526 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 527 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
528 | } |
529 | break; | |
530 | ||
531 | case FF_CHECKNL: | |
5a34cab7 NC |
532 | { |
533 | const char *send; | |
534 | const char *s = item = SvPV_const(sv, len); | |
535 | itemsize = len; | |
536 | if (DO_UTF8(sv)) { | |
537 | itemsize = sv_len_utf8(sv); | |
538 | if (itemsize != (I32)len) { | |
539 | I32 itembytes; | |
540 | if (itemsize > fieldsize) { | |
541 | itemsize = fieldsize; | |
542 | itembytes = itemsize; | |
543 | sv_pos_u2b(sv, &itembytes, 0); | |
544 | } | |
545 | else | |
546 | itembytes = len; | |
547 | send = chophere = s + itembytes; | |
548 | while (s < send) { | |
549 | if (*s & ~31) | |
550 | gotsome = TRUE; | |
551 | else if (*s == '\n') | |
552 | break; | |
553 | s++; | |
554 | } | |
555 | item_is_utf8 = TRUE; | |
556 | itemsize = s - item; | |
557 | sv_pos_b2u(sv, &itemsize); | |
558 | break; | |
a0ed51b3 | 559 | } |
a0ed51b3 | 560 | } |
5a34cab7 NC |
561 | item_is_utf8 = FALSE; |
562 | if (itemsize > fieldsize) | |
563 | itemsize = fieldsize; | |
564 | send = chophere = s + itemsize; | |
565 | while (s < send) { | |
566 | if (*s & ~31) | |
567 | gotsome = TRUE; | |
568 | else if (*s == '\n') | |
569 | break; | |
570 | s++; | |
571 | } | |
572 | itemsize = s - item; | |
573 | break; | |
a0ed51b3 | 574 | } |
a0d0e21e LW |
575 | |
576 | case FF_CHECKCHOP: | |
5a34cab7 NC |
577 | { |
578 | const char *s = item = SvPV_const(sv, len); | |
579 | itemsize = len; | |
580 | if (DO_UTF8(sv)) { | |
581 | itemsize = sv_len_utf8(sv); | |
582 | if (itemsize != (I32)len) { | |
583 | I32 itembytes; | |
584 | if (itemsize <= fieldsize) { | |
585 | const char *send = chophere = s + itemsize; | |
586 | while (s < send) { | |
587 | if (*s == '\r') { | |
588 | itemsize = s - item; | |
a0ed51b3 | 589 | chophere = s; |
a0ed51b3 | 590 | break; |
5a34cab7 NC |
591 | } |
592 | if (*s++ & ~31) | |
a0ed51b3 | 593 | gotsome = TRUE; |
a0ed51b3 | 594 | } |
a0ed51b3 | 595 | } |
5a34cab7 NC |
596 | else { |
597 | const char *send; | |
598 | itemsize = fieldsize; | |
599 | itembytes = itemsize; | |
600 | sv_pos_u2b(sv, &itembytes, 0); | |
601 | send = chophere = s + itembytes; | |
602 | while (s < send || (s == send && isSPACE(*s))) { | |
603 | if (isSPACE(*s)) { | |
604 | if (chopspace) | |
605 | chophere = s; | |
606 | if (*s == '\r') | |
607 | break; | |
608 | } | |
609 | else { | |
610 | if (*s & ~31) | |
611 | gotsome = TRUE; | |
612 | if (strchr(PL_chopset, *s)) | |
613 | chophere = s + 1; | |
614 | } | |
615 | s++; | |
616 | } | |
617 | itemsize = chophere - item; | |
618 | sv_pos_b2u(sv, &itemsize); | |
619 | } | |
620 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
621 | break; |
622 | } | |
a0d0e21e | 623 | } |
5a34cab7 NC |
624 | item_is_utf8 = FALSE; |
625 | if (itemsize <= fieldsize) { | |
626 | const char *const send = chophere = s + itemsize; | |
627 | while (s < send) { | |
628 | if (*s == '\r') { | |
629 | itemsize = s - item; | |
a0d0e21e | 630 | chophere = s; |
a0d0e21e | 631 | break; |
5a34cab7 NC |
632 | } |
633 | if (*s++ & ~31) | |
a0d0e21e | 634 | gotsome = TRUE; |
a0d0e21e | 635 | } |
a0d0e21e | 636 | } |
5a34cab7 NC |
637 | else { |
638 | const char *send; | |
639 | itemsize = fieldsize; | |
640 | send = chophere = s + itemsize; | |
641 | while (s < send || (s == send && isSPACE(*s))) { | |
642 | if (isSPACE(*s)) { | |
643 | if (chopspace) | |
644 | chophere = s; | |
645 | if (*s == '\r') | |
646 | break; | |
647 | } | |
648 | else { | |
649 | if (*s & ~31) | |
650 | gotsome = TRUE; | |
651 | if (strchr(PL_chopset, *s)) | |
652 | chophere = s + 1; | |
653 | } | |
654 | s++; | |
655 | } | |
656 | itemsize = chophere - item; | |
657 | } | |
658 | break; | |
a0d0e21e | 659 | } |
a0d0e21e LW |
660 | |
661 | case FF_SPACE: | |
662 | arg = fieldsize - itemsize; | |
663 | if (arg) { | |
664 | fieldsize -= arg; | |
665 | while (arg-- > 0) | |
666 | *t++ = ' '; | |
667 | } | |
668 | break; | |
669 | ||
670 | case FF_HALFSPACE: | |
671 | arg = fieldsize - itemsize; | |
672 | if (arg) { | |
673 | arg /= 2; | |
674 | fieldsize -= arg; | |
675 | while (arg-- > 0) | |
676 | *t++ = ' '; | |
677 | } | |
678 | break; | |
679 | ||
680 | case FF_ITEM: | |
5a34cab7 NC |
681 | { |
682 | const char *s = item; | |
683 | arg = itemsize; | |
684 | if (item_is_utf8) { | |
685 | if (!targ_is_utf8) { | |
686 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
687 | *t = '\0'; | |
688 | sv_utf8_upgrade(PL_formtarget); | |
689 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
690 | t = SvEND(PL_formtarget); | |
691 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 692 | } |
5a34cab7 NC |
693 | while (arg--) { |
694 | if (UTF8_IS_CONTINUED(*s)) { | |
695 | STRLEN skip = UTF8SKIP(s); | |
696 | switch (skip) { | |
697 | default: | |
698 | Move(s,t,skip,char); | |
699 | s += skip; | |
700 | t += skip; | |
701 | break; | |
702 | case 7: *t++ = *s++; | |
703 | case 6: *t++ = *s++; | |
704 | case 5: *t++ = *s++; | |
705 | case 4: *t++ = *s++; | |
706 | case 3: *t++ = *s++; | |
707 | case 2: *t++ = *s++; | |
708 | case 1: *t++ = *s++; | |
709 | } | |
710 | } | |
711 | else { | |
712 | if ( !((*t++ = *s++) & ~31) ) | |
713 | t[-1] = ' '; | |
714 | } | |
a0ed51b3 | 715 | } |
5a34cab7 | 716 | break; |
a0ed51b3 | 717 | } |
5a34cab7 NC |
718 | if (targ_is_utf8 && !item_is_utf8) { |
719 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
720 | *t = '\0'; | |
721 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
722 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 723 | #ifdef EBCDIC |
901017d6 | 724 | const int ch = *t; |
5a34cab7 | 725 | if (iscntrl(ch)) |
78da4d13 | 726 | #else |
5a34cab7 | 727 | if (!(*t & ~31)) |
78da4d13 | 728 | #endif |
5a34cab7 NC |
729 | *t = ' '; |
730 | } | |
731 | break; | |
78da4d13 | 732 | } |
5a34cab7 | 733 | while (arg--) { |
9d116dd7 | 734 | #ifdef EBCDIC |
901017d6 | 735 | const int ch = *t++ = *s++; |
5a34cab7 | 736 | if (iscntrl(ch)) |
a0d0e21e | 737 | #else |
5a34cab7 | 738 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 739 | #endif |
5a34cab7 NC |
740 | t[-1] = ' '; |
741 | } | |
742 | break; | |
a0d0e21e | 743 | } |
a0d0e21e LW |
744 | |
745 | case FF_CHOP: | |
5a34cab7 NC |
746 | { |
747 | const char *s = chophere; | |
748 | if (chopspace) { | |
af68e756 | 749 | while (isSPACE(*s)) |
5a34cab7 NC |
750 | s++; |
751 | } | |
752 | sv_chop(sv,s); | |
753 | SvSETMAGIC(sv); | |
754 | break; | |
a0d0e21e | 755 | } |
a0d0e21e | 756 | |
a1b95068 WL |
757 | case FF_LINESNGL: |
758 | chopspace = 0; | |
759 | oneline = TRUE; | |
760 | goto ff_line; | |
a0d0e21e | 761 | case FF_LINEGLOB: |
a1b95068 WL |
762 | oneline = FALSE; |
763 | ff_line: | |
5a34cab7 NC |
764 | { |
765 | const char *s = item = SvPV_const(sv, len); | |
766 | itemsize = len; | |
767 | if ((item_is_utf8 = DO_UTF8(sv))) | |
768 | itemsize = sv_len_utf8(sv); | |
769 | if (itemsize) { | |
770 | bool chopped = FALSE; | |
771 | const char *const send = s + len; | |
772 | gotsome = TRUE; | |
773 | chophere = s + itemsize; | |
774 | while (s < send) { | |
775 | if (*s++ == '\n') { | |
776 | if (oneline) { | |
777 | chopped = TRUE; | |
778 | chophere = s; | |
779 | break; | |
780 | } else { | |
781 | if (s == send) { | |
782 | itemsize--; | |
783 | chopped = TRUE; | |
784 | } else | |
785 | lines++; | |
786 | } | |
1bd51a4c | 787 | } |
a0d0e21e | 788 | } |
5a34cab7 NC |
789 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
790 | if (targ_is_utf8) | |
791 | SvUTF8_on(PL_formtarget); | |
792 | if (oneline) { | |
793 | SvCUR_set(sv, chophere - item); | |
794 | sv_catsv(PL_formtarget, sv); | |
795 | SvCUR_set(sv, itemsize); | |
796 | } else | |
797 | sv_catsv(PL_formtarget, sv); | |
798 | if (chopped) | |
799 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1); | |
800 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
801 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); | |
802 | if (item_is_utf8) | |
803 | targ_is_utf8 = TRUE; | |
a0d0e21e | 804 | } |
5a34cab7 | 805 | break; |
a0d0e21e | 806 | } |
a0d0e21e | 807 | |
a1b95068 WL |
808 | case FF_0DECIMAL: |
809 | arg = *fpc++; | |
810 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
811 | fmt = (const char *) |
812 | ((arg & 256) ? | |
813 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 814 | #else |
10edeb5d JH |
815 | fmt = (const char *) |
816 | ((arg & 256) ? | |
817 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
818 | #endif |
819 | goto ff_dec; | |
a0d0e21e | 820 | case FF_DECIMAL: |
a0d0e21e | 821 | arg = *fpc++; |
65202027 | 822 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
823 | fmt = (const char *) |
824 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 825 | #else |
10edeb5d JH |
826 | fmt = (const char *) |
827 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 828 | #endif |
a1b95068 | 829 | ff_dec: |
784707d5 JP |
830 | /* If the field is marked with ^ and the value is undefined, |
831 | blank it out. */ | |
784707d5 JP |
832 | if ((arg & 512) && !SvOK(sv)) { |
833 | arg = fieldsize; | |
834 | while (arg--) | |
835 | *t++ = ' '; | |
836 | break; | |
837 | } | |
838 | gotsome = TRUE; | |
839 | value = SvNV(sv); | |
a1b95068 | 840 | /* overflow evidence */ |
bfed75c6 | 841 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
842 | arg = fieldsize; |
843 | while (arg--) | |
844 | *t++ = '#'; | |
845 | break; | |
846 | } | |
784707d5 JP |
847 | /* Formats aren't yet marked for locales, so assume "yes". */ |
848 | { | |
849 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 850 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
851 | RESTORE_NUMERIC_STANDARD(); |
852 | } | |
853 | t += fieldsize; | |
854 | break; | |
a1b95068 | 855 | |
a0d0e21e LW |
856 | case FF_NEWLINE: |
857 | f++; | |
858 | while (t-- > linemark && *t == ' ') ; | |
859 | t++; | |
860 | *t++ = '\n'; | |
861 | break; | |
862 | ||
863 | case FF_BLANK: | |
864 | arg = *fpc++; | |
865 | if (gotsome) { | |
866 | if (arg) { /* repeat until fields exhausted? */ | |
867 | *t = '\0'; | |
b15aece3 | 868 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 869 | lines += FmLINES(PL_formtarget); |
a0d0e21e LW |
870 | if (lines == 200) { |
871 | arg = t - linemark; | |
872 | if (strnEQ(linemark, linemark - arg, arg)) | |
cea2e8a9 | 873 | DIE(aTHX_ "Runaway format"); |
a0d0e21e | 874 | } |
1bd51a4c IH |
875 | if (targ_is_utf8) |
876 | SvUTF8_on(PL_formtarget); | |
3280af22 | 877 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
878 | SP = ORIGMARK; |
879 | RETURNOP(cLISTOP->op_first); | |
880 | } | |
881 | } | |
882 | else { | |
883 | t = linemark; | |
884 | lines--; | |
885 | } | |
886 | break; | |
887 | ||
888 | case FF_MORE: | |
5a34cab7 NC |
889 | { |
890 | const char *s = chophere; | |
891 | const char *send = item + len; | |
892 | if (chopspace) { | |
af68e756 | 893 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 894 | s++; |
a0d0e21e | 895 | } |
5a34cab7 NC |
896 | if (s < send) { |
897 | char *s1; | |
898 | arg = fieldsize - itemsize; | |
899 | if (arg) { | |
900 | fieldsize -= arg; | |
901 | while (arg-- > 0) | |
902 | *t++ = ' '; | |
903 | } | |
904 | s1 = t - 3; | |
905 | if (strnEQ(s1," ",3)) { | |
906 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
907 | s1--; | |
908 | } | |
909 | *s1++ = '.'; | |
910 | *s1++ = '.'; | |
911 | *s1++ = '.'; | |
a0d0e21e | 912 | } |
5a34cab7 | 913 | break; |
a0d0e21e | 914 | } |
a0d0e21e LW |
915 | case FF_END: |
916 | *t = '\0'; | |
b15aece3 | 917 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
918 | if (targ_is_utf8) |
919 | SvUTF8_on(PL_formtarget); | |
3280af22 | 920 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
921 | SP = ORIGMARK; |
922 | RETPUSHYES; | |
923 | } | |
924 | } | |
925 | } | |
926 | ||
927 | PP(pp_grepstart) | |
928 | { | |
27da23d5 | 929 | dVAR; dSP; |
a0d0e21e LW |
930 | SV *src; |
931 | ||
3280af22 | 932 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 933 | (void)POPMARK; |
54310121 | 934 | if (GIMME_V == G_SCALAR) |
0b024f31 | 935 | XPUSHs(sv_2mortal(newSViv(0))); |
533c011a | 936 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 937 | } |
3280af22 | 938 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
939 | pp_pushmark(); /* push dst */ |
940 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
941 | ENTER; /* enter outer scope */ |
942 | ||
943 | SAVETMPS; | |
59f00321 RGS |
944 | if (PL_op->op_private & OPpGREP_LEX) |
945 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
946 | else | |
947 | SAVE_DEFSV; | |
a0d0e21e | 948 | ENTER; /* enter inner scope */ |
7766f137 | 949 | SAVEVPTR(PL_curpm); |
a0d0e21e | 950 | |
3280af22 | 951 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 952 | SvTEMP_off(src); |
59f00321 RGS |
953 | if (PL_op->op_private & OPpGREP_LEX) |
954 | PAD_SVl(PL_op->op_targ) = src; | |
955 | else | |
956 | DEFSV = src; | |
a0d0e21e LW |
957 | |
958 | PUTBACK; | |
533c011a | 959 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 960 | pp_pushmark(); /* push top */ |
533c011a | 961 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
962 | } |
963 | ||
a0d0e21e LW |
964 | PP(pp_mapwhile) |
965 | { | |
27da23d5 | 966 | dVAR; dSP; |
f54cb97a | 967 | const I32 gimme = GIMME_V; |
544f3153 | 968 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
969 | I32 count; |
970 | I32 shift; | |
971 | SV** src; | |
ac27b0f5 | 972 | SV** dst; |
a0d0e21e | 973 | |
544f3153 | 974 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 975 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
976 | |
977 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 978 | if (items && gimme != G_VOID) { |
544f3153 GS |
979 | /* might need to make room back there first */ |
980 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
981 | /* XXX this implementation is very pessimal because the stack | |
982 | * is repeatedly extended for every set of items. Is possible | |
983 | * to do this without any stack extension or copying at all | |
984 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 985 | * (like foreach does). --gsar */ |
544f3153 GS |
986 | |
987 | /* everything in the stack after the destination list moves | |
988 | * towards the end the stack by the amount of room needed */ | |
989 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
990 | ||
991 | /* items to shift up (accounting for the moved source pointer) */ | |
992 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
993 | |
994 | /* This optimization is by Ben Tilly and it does | |
995 | * things differently from what Sarathy (gsar) | |
996 | * is describing. The downside of this optimization is | |
997 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
998 | * to the Perl stack, but on the other hand this | |
999 | * shouldn't be a problem. If Sarathy's idea gets | |
1000 | * implemented, this optimization should become | |
1001 | * irrelevant. --jhi */ | |
1002 | if (shift < count) | |
1003 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1004 | |
924508f0 GS |
1005 | EXTEND(SP,shift); |
1006 | src = SP; | |
1007 | dst = (SP += shift); | |
3280af22 NIS |
1008 | PL_markstack_ptr[-1] += shift; |
1009 | *PL_markstack_ptr += shift; | |
544f3153 | 1010 | while (count--) |
a0d0e21e LW |
1011 | *dst-- = *src--; |
1012 | } | |
544f3153 | 1013 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1014 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1015 | if (gimme == G_ARRAY) { |
1016 | while (items-- > 0) | |
1017 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1018 | } | |
bfed75c6 | 1019 | else { |
22023b26 TP |
1020 | /* scalar context: we don't care about which values map returns |
1021 | * (we use undef here). And so we certainly don't want to do mortal | |
1022 | * copies of meaningless values. */ | |
1023 | while (items-- > 0) { | |
b988aa42 | 1024 | (void)POPs; |
22023b26 TP |
1025 | *dst-- = &PL_sv_undef; |
1026 | } | |
1027 | } | |
a0d0e21e LW |
1028 | } |
1029 | LEAVE; /* exit inner scope */ | |
1030 | ||
1031 | /* All done yet? */ | |
3280af22 | 1032 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1033 | |
1034 | (void)POPMARK; /* pop top */ | |
1035 | LEAVE; /* exit outer scope */ | |
1036 | (void)POPMARK; /* pop src */ | |
3280af22 | 1037 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1038 | (void)POPMARK; /* pop dst */ |
3280af22 | 1039 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1040 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1041 | if (PL_op->op_private & OPpGREP_LEX) { |
1042 | SV* sv = sv_newmortal(); | |
1043 | sv_setiv(sv, items); | |
1044 | PUSHs(sv); | |
1045 | } | |
1046 | else { | |
1047 | dTARGET; | |
1048 | XPUSHi(items); | |
1049 | } | |
a0d0e21e | 1050 | } |
54310121 | 1051 | else if (gimme == G_ARRAY) |
1052 | SP += items; | |
a0d0e21e LW |
1053 | RETURN; |
1054 | } | |
1055 | else { | |
1056 | SV *src; | |
1057 | ||
1058 | ENTER; /* enter inner scope */ | |
7766f137 | 1059 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1060 | |
544f3153 | 1061 | /* set $_ to the new source item */ |
3280af22 | 1062 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1063 | SvTEMP_off(src); |
59f00321 RGS |
1064 | if (PL_op->op_private & OPpGREP_LEX) |
1065 | PAD_SVl(PL_op->op_targ) = src; | |
1066 | else | |
1067 | DEFSV = src; | |
a0d0e21e LW |
1068 | |
1069 | RETURNOP(cLOGOP->op_other); | |
1070 | } | |
1071 | } | |
1072 | ||
a0d0e21e LW |
1073 | /* Range stuff. */ |
1074 | ||
1075 | PP(pp_range) | |
1076 | { | |
97aff369 | 1077 | dVAR; |
a0d0e21e | 1078 | if (GIMME == G_ARRAY) |
1a67a97c | 1079 | return NORMAL; |
538573f7 | 1080 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1081 | return cLOGOP->op_other; |
538573f7 | 1082 | else |
1a67a97c | 1083 | return NORMAL; |
a0d0e21e LW |
1084 | } |
1085 | ||
1086 | PP(pp_flip) | |
1087 | { | |
97aff369 | 1088 | dVAR; |
39644a26 | 1089 | dSP; |
a0d0e21e LW |
1090 | |
1091 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1092 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1093 | } |
1094 | else { | |
1095 | dTOPss; | |
44f8325f | 1096 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1097 | int flip = 0; |
790090df | 1098 | |
bfed75c6 | 1099 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1100 | if (GvIO(PL_last_in_gv)) { |
1101 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1102 | } | |
1103 | else { | |
fafc274c | 1104 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1105 | if (gv && GvSV(gv)) |
1106 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1107 | } |
bfed75c6 AL |
1108 | } else { |
1109 | flip = SvTRUE(sv); | |
1110 | } | |
1111 | if (flip) { | |
a0d0e21e | 1112 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1113 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1114 | sv_setiv(targ, 1); |
3e3baf6d | 1115 | SETs(targ); |
a0d0e21e LW |
1116 | RETURN; |
1117 | } | |
1118 | else { | |
1119 | sv_setiv(targ, 0); | |
924508f0 | 1120 | SP--; |
1a67a97c | 1121 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1122 | } |
1123 | } | |
c69006e4 | 1124 | sv_setpvn(TARG, "", 0); |
a0d0e21e LW |
1125 | SETs(targ); |
1126 | RETURN; | |
1127 | } | |
1128 | } | |
1129 | ||
8e9bbdb9 RGS |
1130 | /* This code tries to decide if "$left .. $right" should use the |
1131 | magical string increment, or if the range is numeric (we make | |
1132 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1133 | ||
1134 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1135 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1136 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1137 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1138 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1139 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1140 | |
a0d0e21e LW |
1141 | PP(pp_flop) |
1142 | { | |
97aff369 | 1143 | dVAR; dSP; |
a0d0e21e LW |
1144 | |
1145 | if (GIMME == G_ARRAY) { | |
1146 | dPOPPOPssrl; | |
86cb7173 | 1147 | |
5b295bef RD |
1148 | SvGETMAGIC(left); |
1149 | SvGETMAGIC(right); | |
a0d0e21e | 1150 | |
8e9bbdb9 | 1151 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1152 | register IV i, j; |
1153 | IV max; | |
4fe3f0fa MHM |
1154 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1155 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1156 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1157 | i = SvIV(left); |
1158 | max = SvIV(right); | |
bbce6d69 | 1159 | if (max >= i) { |
c1ab3db2 AK |
1160 | j = max - i + 1; |
1161 | EXTEND_MORTAL(j); | |
1162 | EXTEND(SP, j); | |
bbce6d69 | 1163 | } |
c1ab3db2 AK |
1164 | else |
1165 | j = 0; | |
1166 | while (j--) { | |
901017d6 | 1167 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1168 | PUSHs(sv); |
1169 | } | |
1170 | } | |
1171 | else { | |
44f8325f | 1172 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1173 | STRLEN len; |
823a54a3 | 1174 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1175 | |
901017d6 | 1176 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1177 | SvPV_force_nolen(sv); |
89ea2908 | 1178 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1179 | XPUSHs(sv); |
b15aece3 | 1180 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1181 | break; |
a0d0e21e LW |
1182 | sv = sv_2mortal(newSVsv(sv)); |
1183 | sv_inc(sv); | |
1184 | } | |
a0d0e21e LW |
1185 | } |
1186 | } | |
1187 | else { | |
1188 | dTOPss; | |
901017d6 | 1189 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1190 | int flop = 0; |
a0d0e21e | 1191 | sv_inc(targ); |
4e3399f9 YST |
1192 | |
1193 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1194 | if (GvIO(PL_last_in_gv)) { | |
1195 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1196 | } | |
1197 | else { | |
fafc274c | 1198 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1199 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1200 | } | |
1201 | } | |
1202 | else { | |
1203 | flop = SvTRUE(sv); | |
1204 | } | |
1205 | ||
1206 | if (flop) { | |
a0d0e21e | 1207 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1208 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1209 | } |
1210 | SETs(targ); | |
1211 | } | |
1212 | ||
1213 | RETURN; | |
1214 | } | |
1215 | ||
1216 | /* Control. */ | |
1217 | ||
27da23d5 | 1218 | static const char * const context_name[] = { |
515afda2 NC |
1219 | "pseudo-block", |
1220 | "subroutine", | |
1221 | "eval", | |
1222 | "loop", | |
1223 | "substitution", | |
1224 | "block", | |
0d863452 RH |
1225 | "format", |
1226 | "given", | |
1227 | "when" | |
515afda2 NC |
1228 | }; |
1229 | ||
76e3520e | 1230 | STATIC I32 |
06b5626a | 1231 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1232 | { |
97aff369 | 1233 | dVAR; |
a0d0e21e | 1234 | register I32 i; |
a0d0e21e LW |
1235 | |
1236 | for (i = cxstack_ix; i >= 0; i--) { | |
901017d6 | 1237 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1238 | switch (CxTYPE(cx)) { |
a0d0e21e | 1239 | case CXt_SUBST: |
a0d0e21e | 1240 | case CXt_SUB: |
7766f137 | 1241 | case CXt_FORMAT: |
a0d0e21e | 1242 | case CXt_EVAL: |
0a753a76 | 1243 | case CXt_NULL: |
0d863452 RH |
1244 | case CXt_GIVEN: |
1245 | case CXt_WHEN: | |
e476b1b5 | 1246 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1247 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1248 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1249 | if (CxTYPE(cx) == CXt_NULL) | |
1250 | return -1; | |
1251 | break; | |
a0d0e21e | 1252 | case CXt_LOOP: |
901017d6 | 1253 | if ( !cx->blk_loop.label || strNE(label, cx->blk_loop.label) ) { |
cea2e8a9 | 1254 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
68dc0745 | 1255 | (long)i, cx->blk_loop.label)); |
a0d0e21e LW |
1256 | continue; |
1257 | } | |
cea2e8a9 | 1258 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1259 | return i; |
1260 | } | |
1261 | } | |
1262 | return i; | |
1263 | } | |
1264 | ||
0d863452 RH |
1265 | |
1266 | ||
e50aee73 | 1267 | I32 |
864dbfa3 | 1268 | Perl_dowantarray(pTHX) |
e50aee73 | 1269 | { |
97aff369 | 1270 | dVAR; |
f54cb97a | 1271 | const I32 gimme = block_gimme(); |
54310121 | 1272 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1273 | } | |
1274 | ||
1275 | I32 | |
864dbfa3 | 1276 | Perl_block_gimme(pTHX) |
54310121 | 1277 | { |
97aff369 | 1278 | dVAR; |
06b5626a | 1279 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1280 | if (cxix < 0) |
46fc3d4c | 1281 | return G_VOID; |
e50aee73 | 1282 | |
54310121 | 1283 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1284 | case G_VOID: |
1285 | return G_VOID; | |
54310121 | 1286 | case G_SCALAR: |
e50aee73 | 1287 | return G_SCALAR; |
54310121 | 1288 | case G_ARRAY: |
1289 | return G_ARRAY; | |
1290 | default: | |
cea2e8a9 | 1291 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1292 | /* NOTREACHED */ |
1293 | return 0; | |
54310121 | 1294 | } |
e50aee73 AD |
1295 | } |
1296 | ||
78f9721b SM |
1297 | I32 |
1298 | Perl_is_lvalue_sub(pTHX) | |
1299 | { | |
97aff369 | 1300 | dVAR; |
06b5626a | 1301 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1302 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1303 | ||
cc8d50a7 NC |
1304 | if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1305 | return cxstack[cxix].blk_sub.lval; | |
78f9721b SM |
1306 | else |
1307 | return 0; | |
1308 | } | |
1309 | ||
76e3520e | 1310 | STATIC I32 |
cea2e8a9 | 1311 | S_dopoptosub(pTHX_ I32 startingblock) |
a0d0e21e | 1312 | { |
97aff369 | 1313 | dVAR; |
2c375eb9 GS |
1314 | return dopoptosub_at(cxstack, startingblock); |
1315 | } | |
1316 | ||
1317 | STATIC I32 | |
901017d6 | 1318 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1319 | { |
97aff369 | 1320 | dVAR; |
a0d0e21e | 1321 | I32 i; |
a0d0e21e | 1322 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1323 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1324 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1325 | default: |
1326 | continue; | |
1327 | case CXt_EVAL: | |
1328 | case CXt_SUB: | |
7766f137 | 1329 | case CXt_FORMAT: |
cea2e8a9 | 1330 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1331 | return i; |
1332 | } | |
1333 | } | |
1334 | return i; | |
1335 | } | |
1336 | ||
76e3520e | 1337 | STATIC I32 |
cea2e8a9 | 1338 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1339 | { |
97aff369 | 1340 | dVAR; |
a0d0e21e | 1341 | I32 i; |
a0d0e21e | 1342 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1343 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1344 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1345 | default: |
1346 | continue; | |
1347 | case CXt_EVAL: | |
cea2e8a9 | 1348 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1349 | return i; |
1350 | } | |
1351 | } | |
1352 | return i; | |
1353 | } | |
1354 | ||
76e3520e | 1355 | STATIC I32 |
cea2e8a9 | 1356 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1357 | { |
97aff369 | 1358 | dVAR; |
a0d0e21e | 1359 | I32 i; |
a0d0e21e | 1360 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1361 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1362 | switch (CxTYPE(cx)) { |
a0d0e21e | 1363 | case CXt_SUBST: |
a0d0e21e | 1364 | case CXt_SUB: |
7766f137 | 1365 | case CXt_FORMAT: |
a0d0e21e | 1366 | case CXt_EVAL: |
0a753a76 | 1367 | case CXt_NULL: |
e476b1b5 | 1368 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1369 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1370 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1371 | if ((CxTYPE(cx)) == CXt_NULL) | |
1372 | return -1; | |
1373 | break; | |
a0d0e21e | 1374 | case CXt_LOOP: |
cea2e8a9 | 1375 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1376 | return i; |
1377 | } | |
1378 | } | |
1379 | return i; | |
1380 | } | |
1381 | ||
0d863452 RH |
1382 | STATIC I32 |
1383 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1384 | { | |
97aff369 | 1385 | dVAR; |
0d863452 RH |
1386 | I32 i; |
1387 | for (i = startingblock; i >= 0; i--) { | |
1388 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1389 | switch (CxTYPE(cx)) { | |
1390 | default: | |
1391 | continue; | |
1392 | case CXt_GIVEN: | |
1393 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1394 | return i; | |
1395 | case CXt_LOOP: | |
1396 | if (CxFOREACHDEF(cx)) { | |
1397 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1398 | return i; | |
1399 | } | |
1400 | } | |
1401 | } | |
1402 | return i; | |
1403 | } | |
1404 | ||
1405 | STATIC I32 | |
1406 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1407 | { | |
97aff369 | 1408 | dVAR; |
0d863452 RH |
1409 | I32 i; |
1410 | for (i = startingblock; i >= 0; i--) { | |
1411 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1412 | switch (CxTYPE(cx)) { | |
1413 | default: | |
1414 | continue; | |
1415 | case CXt_WHEN: | |
1416 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1417 | return i; | |
1418 | } | |
1419 | } | |
1420 | return i; | |
1421 | } | |
1422 | ||
a0d0e21e | 1423 | void |
864dbfa3 | 1424 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1425 | { |
97aff369 | 1426 | dVAR; |
a0d0e21e LW |
1427 | I32 optype; |
1428 | ||
1429 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1430 | SV *sv; |
06b5626a | 1431 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1432 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1433 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1434 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1435 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1436 | case CXt_SUBST: |
1437 | POPSUBST(cx); | |
1438 | continue; /* not break */ | |
a0d0e21e | 1439 | case CXt_SUB: |
b0d9ce38 GS |
1440 | POPSUB(cx,sv); |
1441 | LEAVESUB(sv); | |
a0d0e21e LW |
1442 | break; |
1443 | case CXt_EVAL: | |
1444 | POPEVAL(cx); | |
1445 | break; | |
1446 | case CXt_LOOP: | |
1447 | POPLOOP(cx); | |
1448 | break; | |
0a753a76 | 1449 | case CXt_NULL: |
a0d0e21e | 1450 | break; |
7766f137 GS |
1451 | case CXt_FORMAT: |
1452 | POPFORMAT(cx); | |
1453 | break; | |
a0d0e21e | 1454 | } |
c90c0ff4 | 1455 | cxstack_ix--; |
a0d0e21e | 1456 | } |
1b6737cc | 1457 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1458 | } |
1459 | ||
5a844595 GS |
1460 | void |
1461 | Perl_qerror(pTHX_ SV *err) | |
1462 | { | |
97aff369 | 1463 | dVAR; |
5a844595 GS |
1464 | if (PL_in_eval) |
1465 | sv_catsv(ERRSV, err); | |
1466 | else if (PL_errors) | |
1467 | sv_catsv(PL_errors, err); | |
1468 | else | |
95b63a38 | 1469 | Perl_warn(aTHX_ "%"SVf, (void*)err); |
5a844595 GS |
1470 | ++PL_error_count; |
1471 | } | |
1472 | ||
a0d0e21e | 1473 | OP * |
35a4481c | 1474 | Perl_die_where(pTHX_ const char *message, STRLEN msglen) |
a0d0e21e | 1475 | { |
27da23d5 | 1476 | dVAR; |
87582a92 | 1477 | |
3280af22 | 1478 | if (PL_in_eval) { |
a0d0e21e | 1479 | I32 cxix; |
a0d0e21e | 1480 | I32 gimme; |
a0d0e21e | 1481 | |
4e6ea2c3 | 1482 | if (message) { |
faef0170 | 1483 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1484 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1485 | SV * const err = ERRSV; |
c445ea15 | 1486 | const char *e = NULL; |
98eae8f5 | 1487 | if (!SvPOK(err)) |
c69006e4 | 1488 | sv_setpvn(err,"",0); |
98eae8f5 | 1489 | else if (SvCUR(err) >= sizeof(prefix)+msglen-1) { |
0510663f | 1490 | STRLEN len; |
349d4f2f | 1491 | e = SvPV_const(err, len); |
0510663f | 1492 | e += len - msglen; |
98eae8f5 | 1493 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1494 | e = NULL; |
98eae8f5 GS |
1495 | } |
1496 | if (!e) { | |
1497 | SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen); | |
1498 | sv_catpvn(err, prefix, sizeof(prefix)-1); | |
1499 | sv_catpvn(err, message, msglen); | |
e476b1b5 | 1500 | if (ckWARN(WARN_MISC)) { |
504618e9 | 1501 | const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1; |
b15aece3 | 1502 | Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX_const(err)+start); |
4e6ea2c3 | 1503 | } |
4633a7c4 | 1504 | } |
4633a7c4 | 1505 | } |
1aa99e6b | 1506 | else { |
06bf62c7 | 1507 | sv_setpvn(ERRSV, message, msglen); |
1aa99e6b | 1508 | } |
4633a7c4 | 1509 | } |
4e6ea2c3 | 1510 | |
5a844595 GS |
1511 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1512 | && PL_curstackinfo->si_prev) | |
1513 | { | |
bac4b2ad | 1514 | dounwind(-1); |
d3acc0f7 | 1515 | POPSTACK; |
bac4b2ad | 1516 | } |
e336de0d | 1517 | |
a0d0e21e LW |
1518 | if (cxix >= 0) { |
1519 | I32 optype; | |
35a4481c | 1520 | register PERL_CONTEXT *cx; |
901017d6 | 1521 | SV **newsp; |
a0d0e21e LW |
1522 | |
1523 | if (cxix < cxstack_ix) | |
1524 | dounwind(cxix); | |
1525 | ||
3280af22 | 1526 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1527 | if (CxTYPE(cx) != CXt_EVAL) { |
16869676 | 1528 | if (!message) |
349d4f2f | 1529 | message = SvPVx_const(ERRSV, msglen); |
10edeb5d | 1530 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1531 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1532 | my_exit(1); |
1533 | } | |
1534 | POPEVAL(cx); | |
1535 | ||
1536 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1537 | *++newsp = &PL_sv_undef; |
1538 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1539 | |
1540 | LEAVE; | |
748a9306 | 1541 | |
7fb6a879 GS |
1542 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1543 | * XXX it might be better to find a way to avoid messing with | |
1544 | * PL_curcop in save_re_context() instead, but this is a more | |
1545 | * minimal fix --GSAR */ | |
1546 | PL_curcop = cx->blk_oldcop; | |
1547 | ||
7a2e2cd6 | 1548 | if (optype == OP_REQUIRE) { |
44f8325f | 1549 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1550 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1551 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1552 | &PL_sv_undef, 0); |
5a844595 GS |
1553 | DIE(aTHX_ "%sCompilation failed in require", |
1554 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1555 | } |
f39bc417 DM |
1556 | assert(CxTYPE(cx) == CXt_EVAL); |
1557 | return cx->blk_eval.retop; | |
a0d0e21e LW |
1558 | } |
1559 | } | |
9cc2fdd3 | 1560 | if (!message) |
349d4f2f | 1561 | message = SvPVx_const(ERRSV, msglen); |
87582a92 | 1562 | |
7ff03255 | 1563 | write_to_stderr(message, msglen); |
f86702cc | 1564 | my_failure_exit(); |
1565 | /* NOTREACHED */ | |
a0d0e21e LW |
1566 | return 0; |
1567 | } | |
1568 | ||
1569 | PP(pp_xor) | |
1570 | { | |
97aff369 | 1571 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1572 | if (SvTRUE(left) != SvTRUE(right)) |
1573 | RETSETYES; | |
1574 | else | |
1575 | RETSETNO; | |
1576 | } | |
1577 | ||
a0d0e21e LW |
1578 | PP(pp_caller) |
1579 | { | |
97aff369 | 1580 | dVAR; |
39644a26 | 1581 | dSP; |
a0d0e21e | 1582 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1583 | register const PERL_CONTEXT *cx; |
1584 | register const PERL_CONTEXT *ccstack = cxstack; | |
1585 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1586 | I32 gimme; |
06b5626a | 1587 | const char *stashname; |
a0d0e21e LW |
1588 | I32 count = 0; |
1589 | ||
1590 | if (MAXARG) | |
1591 | count = POPi; | |
27d41816 | 1592 | |
a0d0e21e | 1593 | for (;;) { |
2c375eb9 GS |
1594 | /* we may be in a higher stacklevel, so dig down deeper */ |
1595 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1596 | top_si = top_si->si_prev; | |
1597 | ccstack = top_si->si_cxstack; | |
1598 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1599 | } | |
a0d0e21e | 1600 | if (cxix < 0) { |
27d41816 DM |
1601 | if (GIMME != G_ARRAY) { |
1602 | EXTEND(SP, 1); | |
a0d0e21e | 1603 | RETPUSHUNDEF; |
27d41816 | 1604 | } |
a0d0e21e LW |
1605 | RETURN; |
1606 | } | |
f2a7f298 DG |
1607 | /* caller() should not report the automatic calls to &DB::sub */ |
1608 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1609 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1610 | count++; |
1611 | if (!count--) | |
1612 | break; | |
2c375eb9 | 1613 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1614 | } |
2c375eb9 GS |
1615 | |
1616 | cx = &ccstack[cxix]; | |
7766f137 | 1617 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1618 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1619 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1620 | field below is defined for any cx. */ |
f2a7f298 DG |
1621 | /* caller() should not report the automatic calls to &DB::sub */ |
1622 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1623 | cx = &ccstack[dbcxix]; |
06a5b730 | 1624 | } |
1625 | ||
ed094faf | 1626 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1627 | if (GIMME != G_ARRAY) { |
27d41816 | 1628 | EXTEND(SP, 1); |
ed094faf | 1629 | if (!stashname) |
3280af22 | 1630 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1631 | else { |
1632 | dTARGET; | |
ed094faf | 1633 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1634 | PUSHs(TARG); |
1635 | } | |
a0d0e21e LW |
1636 | RETURN; |
1637 | } | |
a0d0e21e | 1638 | |
b3ca2e83 | 1639 | EXTEND(SP, 11); |
27d41816 | 1640 | |
ed094faf | 1641 | if (!stashname) |
3280af22 | 1642 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1643 | else |
ed094faf | 1644 | PUSHs(sv_2mortal(newSVpv(stashname, 0))); |
248c2a4d | 1645 | PUSHs(sv_2mortal(newSVpv(OutCopFILE(cx->blk_oldcop), 0))); |
57843af0 | 1646 | PUSHs(sv_2mortal(newSViv((I32)CopLINE(cx->blk_oldcop)))); |
a0d0e21e LW |
1647 | if (!MAXARG) |
1648 | RETURN; | |
7766f137 | 1649 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1650 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1651 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1652 | if (isGV(cvgv)) { |
561b68a9 | 1653 | SV * const sv = newSV(0); |
c445ea15 | 1654 | gv_efullname3(sv, cvgv, NULL); |
07b8c804 | 1655 | PUSHs(sv_2mortal(sv)); |
cc8d50a7 | 1656 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 RGS |
1657 | } |
1658 | else { | |
396482e1 | 1659 | PUSHs(sv_2mortal(newSVpvs("(unknown)"))); |
cc8d50a7 | 1660 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 | 1661 | } |
a0d0e21e LW |
1662 | } |
1663 | else { | |
396482e1 | 1664 | PUSHs(sv_2mortal(newSVpvs("(eval)"))); |
a0d0e21e LW |
1665 | PUSHs(sv_2mortal(newSViv(0))); |
1666 | } | |
54310121 | 1667 | gimme = (I32)cx->blk_gimme; |
1668 | if (gimme == G_VOID) | |
3280af22 | 1669 | PUSHs(&PL_sv_undef); |
54310121 | 1670 | else |
1671 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); | |
6b35e009 | 1672 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1673 | /* eval STRING */ |
06a5b730 | 1674 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 | 1675 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1676 | PUSHs(&PL_sv_no); |
0f79a09d | 1677 | } |
811a4de9 | 1678 | /* require */ |
0f79a09d GS |
1679 | else if (cx->blk_eval.old_namesv) { |
1680 | PUSHs(sv_2mortal(newSVsv(cx->blk_eval.old_namesv))); | |
3280af22 | 1681 | PUSHs(&PL_sv_yes); |
06a5b730 | 1682 | } |
811a4de9 GS |
1683 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1684 | else { | |
1685 | PUSHs(&PL_sv_undef); | |
1686 | PUSHs(&PL_sv_undef); | |
1687 | } | |
4633a7c4 | 1688 | } |
a682de96 GS |
1689 | else { |
1690 | PUSHs(&PL_sv_undef); | |
1691 | PUSHs(&PL_sv_undef); | |
1692 | } | |
cc8d50a7 | 1693 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs |
ed094faf | 1694 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1695 | { |
66a1b24b AL |
1696 | AV * const ary = cx->blk_sub.argarray; |
1697 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1698 | |
3280af22 | 1699 | if (!PL_dbargs) { |
71315bf2 | 1700 | GV* const tmpgv = gv_fetchpvs("DB::args", GV_ADD, SVt_PVAV); |
0bd48802 | 1701 | PL_dbargs = GvAV(gv_AVadd(tmpgv)); |
a5f75d66 | 1702 | GvMULTI_on(tmpgv); |
3ddcf04c | 1703 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1704 | } |
1705 | ||
3280af22 NIS |
1706 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1707 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1708 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1709 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1710 | } |
f3aa04c2 GS |
1711 | /* XXX only hints propagated via op_private are currently |
1712 | * visible (others are not easily accessible, since they | |
1713 | * use the global PL_hints) */ | |
623e6609 | 1714 | PUSHs(sv_2mortal(newSViv(CopHINTS_get(cx->blk_oldcop)))); |
e476b1b5 GS |
1715 | { |
1716 | SV * mask ; | |
72dc9ed5 | 1717 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1718 | |
ac27b0f5 | 1719 | if (old_warnings == pWARN_NONE || |
114bafba | 1720 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1721 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1722 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1723 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1724 | /* Get the bit mask for $warnings::Bits{all}, because | |
1725 | * it could have been extended by warnings::register */ | |
1726 | SV **bits_all; | |
0bd48802 | 1727 | HV * const bits = get_hv("warnings::Bits", FALSE); |
017a3ce5 | 1728 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1729 | mask = newSVsv(*bits_all); |
1730 | } | |
1731 | else { | |
1732 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1733 | } | |
1734 | } | |
e476b1b5 | 1735 | else |
72dc9ed5 | 1736 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
e476b1b5 GS |
1737 | PUSHs(sv_2mortal(mask)); |
1738 | } | |
b3ca2e83 | 1739 | |
c28fe1ec | 1740 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1741 | sv_2mortal(newRV_noinc( |
c28fe1ec NC |
1742 | (SV*)Perl_refcounted_he_chain_2hv(aTHX_ |
1743 | cx->blk_oldcop->cop_hints_hash))) | |
b3ca2e83 | 1744 | : &PL_sv_undef); |
a0d0e21e LW |
1745 | RETURN; |
1746 | } | |
1747 | ||
a0d0e21e LW |
1748 | PP(pp_reset) |
1749 | { | |
97aff369 | 1750 | dVAR; |
39644a26 | 1751 | dSP; |
10edeb5d | 1752 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1753 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1754 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1755 | RETURN; |
1756 | } | |
1757 | ||
dd2155a4 DM |
1758 | /* like pp_nextstate, but used instead when the debugger is active */ |
1759 | ||
a0d0e21e LW |
1760 | PP(pp_dbstate) |
1761 | { | |
27da23d5 | 1762 | dVAR; |
533c011a | 1763 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1764 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1765 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1766 | FREETMPS; |
1767 | ||
5df8de69 DM |
1768 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1769 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1770 | { |
39644a26 | 1771 | dSP; |
c09156bb | 1772 | register PERL_CONTEXT *cx; |
f54cb97a | 1773 | const I32 gimme = G_ARRAY; |
eb160463 | 1774 | U8 hasargs; |
0bd48802 AL |
1775 | GV * const gv = PL_DBgv; |
1776 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1777 | |
a0d0e21e | 1778 | if (!cv) |
cea2e8a9 | 1779 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1780 | |
aea4f609 DM |
1781 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1782 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1783 | return NORMAL; |
748a9306 | 1784 | |
4633a7c4 LW |
1785 | ENTER; |
1786 | SAVETMPS; | |
1787 | ||
3280af22 | 1788 | SAVEI32(PL_debug); |
55497cff | 1789 | SAVESTACK_POS(); |
3280af22 | 1790 | PL_debug = 0; |
748a9306 | 1791 | hasargs = 0; |
924508f0 | 1792 | SPAGAIN; |
748a9306 | 1793 | |
aed2304a | 1794 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1795 | CvDEPTH(cv)++; |
1796 | PUSHMARK(SP); | |
1797 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1798 | CvDEPTH(cv)--; | |
1799 | FREETMPS; | |
1800 | LEAVE; | |
1801 | return NORMAL; | |
1802 | } | |
1803 | else { | |
1804 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1805 | PUSHSUB_DB(cx); | |
1806 | cx->blk_sub.retop = PL_op->op_next; | |
1807 | CvDEPTH(cv)++; | |
1808 | SAVECOMPPAD(); | |
1809 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1810 | RETURNOP(CvSTART(cv)); | |
1811 | } | |
a0d0e21e LW |
1812 | } |
1813 | else | |
1814 | return NORMAL; | |
1815 | } | |
1816 | ||
a0d0e21e LW |
1817 | PP(pp_enteriter) |
1818 | { | |
27da23d5 | 1819 | dVAR; dSP; dMARK; |
c09156bb | 1820 | register PERL_CONTEXT *cx; |
f54cb97a | 1821 | const I32 gimme = GIMME_V; |
a0d0e21e | 1822 | SV **svp; |
df43650b | 1823 | U16 cxtype = CXt_LOOP | CXp_FOREACH; |
7766f137 GS |
1824 | #ifdef USE_ITHREADS |
1825 | void *iterdata; | |
1826 | #endif | |
a0d0e21e | 1827 | |
4633a7c4 LW |
1828 | ENTER; |
1829 | SAVETMPS; | |
1830 | ||
533c011a | 1831 | if (PL_op->op_targ) { |
14f338dc DM |
1832 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1833 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1834 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1835 | SVs_PADSTALE, SVs_PADSTALE); | |
1836 | } | |
c3564e5c | 1837 | #ifndef USE_ITHREADS |
dd2155a4 | 1838 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
54b9620d | 1839 | SAVESPTR(*svp); |
c3564e5c GS |
1840 | #else |
1841 | SAVEPADSV(PL_op->op_targ); | |
cbfa9890 | 1842 | iterdata = INT2PTR(void*, PL_op->op_targ); |
7766f137 GS |
1843 | cxtype |= CXp_PADVAR; |
1844 | #endif | |
54b9620d MB |
1845 | } |
1846 | else { | |
0bd48802 | 1847 | GV * const gv = (GV*)POPs; |
7766f137 | 1848 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1849 | SAVEGENERICSV(*svp); |
561b68a9 | 1850 | *svp = newSV(0); |
7766f137 GS |
1851 | #ifdef USE_ITHREADS |
1852 | iterdata = (void*)gv; | |
1853 | #endif | |
54b9620d | 1854 | } |
4633a7c4 | 1855 | |
0d863452 RH |
1856 | if (PL_op->op_private & OPpITER_DEF) |
1857 | cxtype |= CXp_FOR_DEF; | |
1858 | ||
a0d0e21e LW |
1859 | ENTER; |
1860 | ||
7766f137 GS |
1861 | PUSHBLOCK(cx, cxtype, SP); |
1862 | #ifdef USE_ITHREADS | |
1863 | PUSHLOOP(cx, iterdata, MARK); | |
1864 | #else | |
a0d0e21e | 1865 | PUSHLOOP(cx, svp, MARK); |
7766f137 | 1866 | #endif |
533c011a | 1867 | if (PL_op->op_flags & OPf_STACKED) { |
44a8e56a | 1868 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
89ea2908 GA |
1869 | if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) { |
1870 | dPOPss; | |
0bd48802 | 1871 | SV * const right = (SV*)cx->blk_loop.iterary; |
984a4bea RD |
1872 | SvGETMAGIC(sv); |
1873 | SvGETMAGIC(right); | |
4fe3f0fa MHM |
1874 | if (RANGE_IS_NUMERIC(sv,right)) { |
1875 | if ((SvOK(sv) && SvNV(sv) < IV_MIN) || | |
1876 | (SvOK(right) && SvNV(right) >= IV_MAX)) | |
076d9a11 MHM |
1877 | DIE(aTHX_ "Range iterator outside integer range"); |
1878 | cx->blk_loop.iterix = SvIV(sv); | |
4fe3f0fa | 1879 | cx->blk_loop.itermax = SvIV(right); |
d4665a05 DM |
1880 | #ifdef DEBUGGING |
1881 | /* for correct -Dstv display */ | |
1882 | cx->blk_oldsp = sp - PL_stack_base; | |
1883 | #endif | |
89ea2908 | 1884 | } |
3f63a782 | 1885 | else { |
89ea2908 | 1886 | cx->blk_loop.iterlval = newSVsv(sv); |
13c5b33c | 1887 | (void) SvPV_force_nolen(cx->blk_loop.iterlval); |
10516c54 | 1888 | (void) SvPV_nolen_const(right); |
3f63a782 | 1889 | } |
89ea2908 | 1890 | } |
ef3e5ea9 | 1891 | else if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1892 | cx->blk_loop.itermax = 0; |
1893 | cx->blk_loop.iterix = AvFILL(cx->blk_loop.iterary) + 1; | |
ef3e5ea9 NC |
1894 | |
1895 | } | |
89ea2908 | 1896 | } |
4633a7c4 | 1897 | else { |
3280af22 NIS |
1898 | cx->blk_loop.iterary = PL_curstack; |
1899 | AvFILLp(PL_curstack) = SP - PL_stack_base; | |
ef3e5ea9 | 1900 | if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1901 | cx->blk_loop.itermax = MARK - PL_stack_base + 1; |
1902 | cx->blk_loop.iterix = cx->blk_oldsp + 1; | |
ef3e5ea9 NC |
1903 | } |
1904 | else { | |
1905 | cx->blk_loop.iterix = MARK - PL_stack_base; | |
1906 | } | |
4633a7c4 | 1907 | } |
a0d0e21e LW |
1908 | |
1909 | RETURN; | |
1910 | } | |
1911 | ||
1912 | PP(pp_enterloop) | |
1913 | { | |
27da23d5 | 1914 | dVAR; dSP; |
c09156bb | 1915 | register PERL_CONTEXT *cx; |
f54cb97a | 1916 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
1917 | |
1918 | ENTER; | |
1919 | SAVETMPS; | |
1920 | ENTER; | |
1921 | ||
1922 | PUSHBLOCK(cx, CXt_LOOP, SP); | |
1923 | PUSHLOOP(cx, 0, SP); | |
1924 | ||
1925 | RETURN; | |
1926 | } | |
1927 | ||
1928 | PP(pp_leaveloop) | |
1929 | { | |
27da23d5 | 1930 | dVAR; dSP; |
c09156bb | 1931 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1932 | I32 gimme; |
1933 | SV **newsp; | |
1934 | PMOP *newpm; | |
1935 | SV **mark; | |
1936 | ||
1937 | POPBLOCK(cx,newpm); | |
3a1b2b9e | 1938 | assert(CxTYPE(cx) == CXt_LOOP); |
4fdae800 | 1939 | mark = newsp; |
a8bba7fa | 1940 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 1941 | |
a1f49e72 | 1942 | TAINT_NOT; |
54310121 | 1943 | if (gimme == G_VOID) |
6f207bd3 | 1944 | NOOP; |
54310121 | 1945 | else if (gimme == G_SCALAR) { |
1946 | if (mark < SP) | |
1947 | *++newsp = sv_mortalcopy(*SP); | |
1948 | else | |
3280af22 | 1949 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
1950 | } |
1951 | else { | |
a1f49e72 | 1952 | while (mark < SP) { |
a0d0e21e | 1953 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
1954 | TAINT_NOT; /* Each item is independent */ |
1955 | } | |
a0d0e21e | 1956 | } |
f86702cc | 1957 | SP = newsp; |
1958 | PUTBACK; | |
1959 | ||
a8bba7fa | 1960 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 1961 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 1962 | |
a0d0e21e LW |
1963 | LEAVE; |
1964 | LEAVE; | |
1965 | ||
f86702cc | 1966 | return NORMAL; |
a0d0e21e LW |
1967 | } |
1968 | ||
1969 | PP(pp_return) | |
1970 | { | |
27da23d5 | 1971 | dVAR; dSP; dMARK; |
c09156bb | 1972 | register PERL_CONTEXT *cx; |
f86702cc | 1973 | bool popsub2 = FALSE; |
b45de488 | 1974 | bool clear_errsv = FALSE; |
a0d0e21e LW |
1975 | I32 gimme; |
1976 | SV **newsp; | |
1977 | PMOP *newpm; | |
1978 | I32 optype = 0; | |
b0d9ce38 | 1979 | SV *sv; |
f39bc417 | 1980 | OP *retop; |
a0d0e21e | 1981 | |
0bd48802 AL |
1982 | const I32 cxix = dopoptosub(cxstack_ix); |
1983 | ||
9850bf21 RH |
1984 | if (cxix < 0) { |
1985 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
1986 | * sort block, which is a CXt_NULL | |
1987 | * not a CXt_SUB */ | |
1988 | dounwind(0); | |
d7507f74 RH |
1989 | PL_stack_base[1] = *PL_stack_sp; |
1990 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
1991 | return 0; |
1992 | } | |
9850bf21 RH |
1993 | else |
1994 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 1995 | } |
a0d0e21e LW |
1996 | if (cxix < cxstack_ix) |
1997 | dounwind(cxix); | |
1998 | ||
d7507f74 RH |
1999 | if (CxMULTICALL(&cxstack[cxix])) { |
2000 | gimme = cxstack[cxix].blk_gimme; | |
2001 | if (gimme == G_VOID) | |
2002 | PL_stack_sp = PL_stack_base; | |
2003 | else if (gimme == G_SCALAR) { | |
2004 | PL_stack_base[1] = *PL_stack_sp; | |
2005 | PL_stack_sp = PL_stack_base + 1; | |
2006 | } | |
9850bf21 | 2007 | return 0; |
d7507f74 | 2008 | } |
9850bf21 | 2009 | |
a0d0e21e | 2010 | POPBLOCK(cx,newpm); |
6b35e009 | 2011 | switch (CxTYPE(cx)) { |
a0d0e21e | 2012 | case CXt_SUB: |
f86702cc | 2013 | popsub2 = TRUE; |
f39bc417 | 2014 | retop = cx->blk_sub.retop; |
5dd42e15 | 2015 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2016 | break; |
2017 | case CXt_EVAL: | |
b45de488 GS |
2018 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2019 | clear_errsv = TRUE; | |
a0d0e21e | 2020 | POPEVAL(cx); |
f39bc417 | 2021 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2022 | if (CxTRYBLOCK(cx)) |
2023 | break; | |
067f92a0 | 2024 | lex_end(); |
748a9306 LW |
2025 | if (optype == OP_REQUIRE && |
2026 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2027 | { | |
54310121 | 2028 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2029 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2030 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
95b63a38 | 2031 | DIE(aTHX_ "%"SVf" did not return a true value", (void*)nsv); |
748a9306 | 2032 | } |
a0d0e21e | 2033 | break; |
7766f137 GS |
2034 | case CXt_FORMAT: |
2035 | POPFORMAT(cx); | |
f39bc417 | 2036 | retop = cx->blk_sub.retop; |
7766f137 | 2037 | break; |
a0d0e21e | 2038 | default: |
cea2e8a9 | 2039 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2040 | } |
2041 | ||
a1f49e72 | 2042 | TAINT_NOT; |
a0d0e21e | 2043 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2044 | if (MARK < SP) { |
2045 | if (popsub2) { | |
a8bba7fa | 2046 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2047 | if (SvTEMP(TOPs)) { |
2048 | *++newsp = SvREFCNT_inc(*SP); | |
2049 | FREETMPS; | |
2050 | sv_2mortal(*newsp); | |
959e3673 GS |
2051 | } |
2052 | else { | |
2053 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2054 | FREETMPS; |
959e3673 GS |
2055 | *++newsp = sv_mortalcopy(sv); |
2056 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2057 | } |
959e3673 GS |
2058 | } |
2059 | else | |
a29cdaf0 | 2060 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2061 | } |
2062 | else | |
a29cdaf0 | 2063 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2064 | } |
2065 | else | |
3280af22 | 2066 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2067 | } |
54310121 | 2068 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2069 | while (++MARK <= SP) { |
f86702cc | 2070 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2071 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2072 | TAINT_NOT; /* Each item is independent */ |
2073 | } | |
a0d0e21e | 2074 | } |
3280af22 | 2075 | PL_stack_sp = newsp; |
a0d0e21e | 2076 | |
5dd42e15 | 2077 | LEAVE; |
f86702cc | 2078 | /* Stack values are safe: */ |
2079 | if (popsub2) { | |
5dd42e15 | 2080 | cxstack_ix--; |
b0d9ce38 | 2081 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2082 | } |
b0d9ce38 | 2083 | else |
c445ea15 | 2084 | sv = NULL; |
3280af22 | 2085 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2086 | |
b0d9ce38 | 2087 | LEAVESUB(sv); |
b45de488 | 2088 | if (clear_errsv) |
c69006e4 | 2089 | sv_setpvn(ERRSV,"",0); |
f39bc417 | 2090 | return retop; |
a0d0e21e LW |
2091 | } |
2092 | ||
2093 | PP(pp_last) | |
2094 | { | |
27da23d5 | 2095 | dVAR; dSP; |
a0d0e21e | 2096 | I32 cxix; |
c09156bb | 2097 | register PERL_CONTEXT *cx; |
f86702cc | 2098 | I32 pop2 = 0; |
a0d0e21e | 2099 | I32 gimme; |
8772537c | 2100 | I32 optype; |
a0d0e21e LW |
2101 | OP *nextop; |
2102 | SV **newsp; | |
2103 | PMOP *newpm; | |
a8bba7fa | 2104 | SV **mark; |
c445ea15 | 2105 | SV *sv = NULL; |
9d4ba2ae | 2106 | |
a0d0e21e | 2107 | |
533c011a | 2108 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2109 | cxix = dopoptoloop(cxstack_ix); |
2110 | if (cxix < 0) | |
a651a37d | 2111 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2112 | } |
2113 | else { | |
2114 | cxix = dopoptolabel(cPVOP->op_pv); | |
2115 | if (cxix < 0) | |
cea2e8a9 | 2116 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2117 | } |
2118 | if (cxix < cxstack_ix) | |
2119 | dounwind(cxix); | |
2120 | ||
2121 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2122 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2123 | mark = newsp; |
6b35e009 | 2124 | switch (CxTYPE(cx)) { |
a0d0e21e | 2125 | case CXt_LOOP: |
f86702cc | 2126 | pop2 = CXt_LOOP; |
a8bba7fa | 2127 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2128 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2129 | break; |
f86702cc | 2130 | case CXt_SUB: |
f86702cc | 2131 | pop2 = CXt_SUB; |
f39bc417 | 2132 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2133 | break; |
f86702cc | 2134 | case CXt_EVAL: |
2135 | POPEVAL(cx); | |
f39bc417 | 2136 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2137 | break; |
7766f137 GS |
2138 | case CXt_FORMAT: |
2139 | POPFORMAT(cx); | |
f39bc417 | 2140 | nextop = cx->blk_sub.retop; |
7766f137 | 2141 | break; |
a0d0e21e | 2142 | default: |
cea2e8a9 | 2143 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2144 | } |
2145 | ||
a1f49e72 | 2146 | TAINT_NOT; |
a0d0e21e | 2147 | if (gimme == G_SCALAR) { |
f86702cc | 2148 | if (MARK < SP) |
2149 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2150 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2151 | else |
3280af22 | 2152 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2153 | } |
54310121 | 2154 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2155 | while (++MARK <= SP) { |
f86702cc | 2156 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2157 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2158 | TAINT_NOT; /* Each item is independent */ |
2159 | } | |
f86702cc | 2160 | } |
2161 | SP = newsp; | |
2162 | PUTBACK; | |
2163 | ||
5dd42e15 DM |
2164 | LEAVE; |
2165 | cxstack_ix--; | |
f86702cc | 2166 | /* Stack values are safe: */ |
2167 | switch (pop2) { | |
2168 | case CXt_LOOP: | |
a8bba7fa | 2169 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2170 | LEAVE; |
f86702cc | 2171 | break; |
2172 | case CXt_SUB: | |
b0d9ce38 | 2173 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2174 | break; |
a0d0e21e | 2175 | } |
3280af22 | 2176 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2177 | |
b0d9ce38 | 2178 | LEAVESUB(sv); |
9d4ba2ae AL |
2179 | PERL_UNUSED_VAR(optype); |
2180 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2181 | return nextop; |
a0d0e21e LW |
2182 | } |
2183 | ||
2184 | PP(pp_next) | |
2185 | { | |
27da23d5 | 2186 | dVAR; |
a0d0e21e | 2187 | I32 cxix; |
c09156bb | 2188 | register PERL_CONTEXT *cx; |
85538317 | 2189 | I32 inner; |
a0d0e21e | 2190 | |
533c011a | 2191 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2192 | cxix = dopoptoloop(cxstack_ix); |
2193 | if (cxix < 0) | |
a651a37d | 2194 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2195 | } |
2196 | else { | |
2197 | cxix = dopoptolabel(cPVOP->op_pv); | |
2198 | if (cxix < 0) | |
cea2e8a9 | 2199 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2200 | } |
2201 | if (cxix < cxstack_ix) | |
2202 | dounwind(cxix); | |
2203 | ||
85538317 GS |
2204 | /* clear off anything above the scope we're re-entering, but |
2205 | * save the rest until after a possible continue block */ | |
2206 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2207 | TOPBLOCK(cx); |
85538317 GS |
2208 | if (PL_scopestack_ix < inner) |
2209 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2210 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2211 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2212 | } |
2213 | ||
2214 | PP(pp_redo) | |
2215 | { | |
27da23d5 | 2216 | dVAR; |
a0d0e21e | 2217 | I32 cxix; |
c09156bb | 2218 | register PERL_CONTEXT *cx; |
a0d0e21e | 2219 | I32 oldsave; |
a034e688 | 2220 | OP* redo_op; |
a0d0e21e | 2221 | |
533c011a | 2222 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2223 | cxix = dopoptoloop(cxstack_ix); |
2224 | if (cxix < 0) | |
a651a37d | 2225 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2226 | } |
2227 | else { | |
2228 | cxix = dopoptolabel(cPVOP->op_pv); | |
2229 | if (cxix < 0) | |
cea2e8a9 | 2230 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2231 | } |
2232 | if (cxix < cxstack_ix) | |
2233 | dounwind(cxix); | |
2234 | ||
022eaa24 | 2235 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2236 | if (redo_op->op_type == OP_ENTER) { |
2237 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2238 | cxstack_ix++; | |
2239 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2240 | redo_op = redo_op->op_next; | |
2241 | } | |
2242 | ||
a0d0e21e | 2243 | TOPBLOCK(cx); |
3280af22 | 2244 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2245 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2246 | FREETMPS; |
3a1b2b9e | 2247 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2248 | return redo_op; |
a0d0e21e LW |
2249 | } |
2250 | ||
0824fdcb | 2251 | STATIC OP * |
bfed75c6 | 2252 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2253 | { |
97aff369 | 2254 | dVAR; |
a0d0e21e | 2255 | OP **ops = opstack; |
bfed75c6 | 2256 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2257 | |
fc36a67e | 2258 | if (ops >= oplimit) |
cea2e8a9 | 2259 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2260 | if (o->op_type == OP_LEAVE || |
2261 | o->op_type == OP_SCOPE || | |
2262 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2263 | o->op_type == OP_LEAVESUB || |
11343788 | 2264 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2265 | { |
5dc0d613 | 2266 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2267 | if (ops >= oplimit) |
cea2e8a9 | 2268 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2269 | } |
c4aa4e48 | 2270 | *ops = 0; |
11343788 | 2271 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2272 | OP *kid; |
a0d0e21e | 2273 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2274 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 GS |
2275 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
2276 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) | |
a0d0e21e LW |
2277 | return kid; |
2278 | } | |
11343788 | 2279 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2280 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2281 | continue; |
ed8d0fe2 SM |
2282 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2283 | if (ops == opstack) | |
2284 | *ops++ = kid; | |
2285 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2286 | ops[-1]->op_type == OP_DBSTATE) | |
2287 | ops[-1] = kid; | |
2288 | else | |
2289 | *ops++ = kid; | |
2290 | } | |
155aba94 | 2291 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2292 | return o; |
a0d0e21e LW |
2293 | } |
2294 | } | |
c4aa4e48 | 2295 | *ops = 0; |
a0d0e21e LW |
2296 | return 0; |
2297 | } | |
2298 | ||
a0d0e21e LW |
2299 | PP(pp_goto) |
2300 | { | |
27da23d5 | 2301 | dVAR; dSP; |
cbbf8932 | 2302 | OP *retop = NULL; |
a0d0e21e | 2303 | I32 ix; |
c09156bb | 2304 | register PERL_CONTEXT *cx; |
fc36a67e | 2305 | #define GOTO_DEPTH 64 |
2306 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2307 | const char *label = NULL; |
bfed75c6 AL |
2308 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2309 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2310 | |
533c011a | 2311 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2312 | SV * const sv = POPs; |
a0d0e21e LW |
2313 | |
2314 | /* This egregious kludge implements goto &subroutine */ | |
2315 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2316 | I32 cxix; | |
c09156bb | 2317 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2318 | CV* cv = (CV*)SvRV(sv); |
2319 | SV** mark; | |
2320 | I32 items = 0; | |
2321 | I32 oldsave; | |
b1464ded | 2322 | bool reified = 0; |
a0d0e21e | 2323 | |
e8f7dd13 | 2324 | retry: |
4aa0a1f7 | 2325 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2326 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2327 | if (gv) { |
7fc63493 | 2328 | GV *autogv; |
e8f7dd13 GS |
2329 | SV *tmpstr; |
2330 | /* autoloaded stub? */ | |
2331 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2332 | goto retry; | |
2333 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2334 | GvNAMELEN(gv), FALSE); | |
2335 | if (autogv && (cv = GvCV(autogv))) | |
2336 | goto retry; | |
2337 | tmpstr = sv_newmortal(); | |
c445ea15 | 2338 | gv_efullname3(tmpstr, gv, NULL); |
95b63a38 | 2339 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"",(void*)tmpstr); |
4aa0a1f7 | 2340 | } |
cea2e8a9 | 2341 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2342 | } |
2343 | ||
a0d0e21e | 2344 | /* First do some returnish stuff. */ |
b37c2d43 | 2345 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2346 | FREETMPS; |
a0d0e21e LW |
2347 | cxix = dopoptosub(cxstack_ix); |
2348 | if (cxix < 0) | |
cea2e8a9 | 2349 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2350 | if (cxix < cxstack_ix) |
2351 | dounwind(cxix); | |
2352 | TOPBLOCK(cx); | |
2d43a17f | 2353 | SPAGAIN; |
564abe23 | 2354 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2355 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2356 | if (CxREALEVAL(cx)) |
2357 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2358 | else | |
2359 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2360 | } |
9850bf21 RH |
2361 | else if (CxMULTICALL(cx)) |
2362 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
cc8d50a7 | 2363 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) { |
d8b46c1b | 2364 | /* put @_ back onto stack */ |
a0d0e21e | 2365 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2366 | |
93965878 | 2367 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2368 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2369 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2370 | SvREFCNT_dec(GvAV(PL_defgv)); |
2371 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2372 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2373 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2374 | if (AvREAL(av)) { |
b1464ded DM |
2375 | reified = 1; |
2376 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2377 | av = newAV(); |
2378 | av_extend(av, items-1); | |
11ca45c0 | 2379 | AvREIFY_only(av); |
dd2155a4 | 2380 | PAD_SVl(0) = (SV*)(cx->blk_sub.argarray = av); |
62b1ebc2 | 2381 | } |
a0d0e21e | 2382 | } |
aed2304a | 2383 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2384 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2385 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2386 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2387 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2388 | } |
a45cdc79 DM |
2389 | mark = SP; |
2390 | SP += items; | |
6b35e009 | 2391 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2392 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2393 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2394 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2395 | LEAVE_SCOPE(oldsave); |
2396 | ||
2397 | /* Now do some callish stuff. */ | |
2398 | SAVETMPS; | |
5023d17a | 2399 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2400 | if (CvISXSUB(cv)) { |
b37c2d43 | 2401 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2402 | SV **newsp; |
2403 | I32 gimme; | |
b1464ded DM |
2404 | if (reified) { |
2405 | I32 index; | |
2406 | for (index=0; index<items; index++) | |
2407 | sv_2mortal(SP[-index]); | |
2408 | } | |
1fa4e549 | 2409 | |
b37c2d43 AL |
2410 | /* XS subs don't have a CxSUB, so pop it */ |
2411 | POPBLOCK(cx, PL_curpm); | |
2412 | /* Push a mark for the start of arglist */ | |
2413 | PUSHMARK(mark); | |
2414 | PUTBACK; | |
2415 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2416 | LEAVE; |
5eff7df7 | 2417 | return retop; |
a0d0e21e LW |
2418 | } |
2419 | else { | |
b37c2d43 | 2420 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2421 | if (CxTYPE(cx) == CXt_EVAL) { |
3280af22 NIS |
2422 | PL_in_eval = cx->blk_eval.old_in_eval; |
2423 | PL_eval_root = cx->blk_eval.old_eval_root; | |
b150fb22 | 2424 | cx->cx_type = CXt_SUB; |
cc8d50a7 | 2425 | cx->blk_sub.hasargs = 0; |
b150fb22 | 2426 | } |
a0d0e21e | 2427 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2428 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2429 | |
a0d0e21e LW |
2430 | CvDEPTH(cv)++; |
2431 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2432 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2433 | else { |
599cee73 | 2434 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION)) |
44a8e56a | 2435 | sub_crush_depth(cv); |
26019298 | 2436 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2437 | } |
fd617465 DM |
2438 | SAVECOMPPAD(); |
2439 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
cc8d50a7 | 2440 | if (cx->blk_sub.hasargs) |
6d4ff0d2 | 2441 | { |
b37c2d43 | 2442 | AV* const av = (AV*)PAD_SVl(0); |
a0d0e21e | 2443 | |
3280af22 | 2444 | cx->blk_sub.savearray = GvAV(PL_defgv); |
b37c2d43 | 2445 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc_simple(av); |
dd2155a4 | 2446 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2447 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2448 | |
2449 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2450 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2451 | if (AvARRAY(av) != ary) { |
2452 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2453 | AvARRAY(av) = ary; |
a0d0e21e LW |
2454 | } |
2455 | if (items >= AvMAX(av) + 1) { | |
2456 | AvMAX(av) = items - 1; | |
2457 | Renew(ary,items+1,SV*); | |
2458 | AvALLOC(av) = ary; | |
9c6bc640 | 2459 | AvARRAY(av) = ary; |
a0d0e21e LW |
2460 | } |
2461 | } | |
a45cdc79 | 2462 | ++mark; |
a0d0e21e | 2463 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2464 | AvFILLp(av) = items - 1; |
d8b46c1b | 2465 | assert(!AvREAL(av)); |
b1464ded DM |
2466 | if (reified) { |
2467 | /* transfer 'ownership' of refcnts to new @_ */ | |
2468 | AvREAL_on(av); | |
2469 | AvREIFY_off(av); | |
2470 | } | |
a0d0e21e LW |
2471 | while (items--) { |
2472 | if (*mark) | |
2473 | SvTEMP_off(*mark); | |
2474 | mark++; | |
2475 | } | |
2476 | } | |
491527d0 | 2477 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
44a8e56a | 2478 | /* |
2479 | * We do not care about using sv to call CV; | |
2480 | * it's for informational purposes only. | |
2481 | */ | |
890ce7af | 2482 | SV * const sv = GvSV(PL_DBsub); |
f398eb67 | 2483 | save_item(sv); |
491527d0 | 2484 | if (PERLDB_SUB_NN) { |
890ce7af | 2485 | const int type = SvTYPE(sv); |
f398eb67 NC |
2486 | if (type < SVt_PVIV && type != SVt_IV) |
2487 | sv_upgrade(sv, SVt_PVIV); | |
7619c85e | 2488 | (void)SvIOK_on(sv); |
45977657 | 2489 | SvIV_set(sv, PTR2IV(cv)); /* Do it the quickest way */ |
491527d0 | 2490 | } else { |
c445ea15 | 2491 | gv_efullname3(sv, CvGV(cv), NULL); |
491527d0 | 2492 | } |
b37c2d43 AL |
2493 | if (PERLDB_GOTO) { |
2494 | CV * const gotocv = get_cv("DB::goto", FALSE); | |
2495 | if (gotocv) { | |
2496 | PUSHMARK( PL_stack_sp ); | |
2497 | call_sv((SV*)gotocv, G_SCALAR | G_NODEBUG); | |
2498 | PL_stack_sp--; | |
2499 | } | |
491527d0 | 2500 | } |
1ce6579f | 2501 | } |
a0d0e21e LW |
2502 | RETURNOP(CvSTART(cv)); |
2503 | } | |
2504 | } | |
1614b0e3 | 2505 | else { |
0510663f | 2506 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2507 | if (!(do_dump || *label)) |
cea2e8a9 | 2508 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2509 | } |
a0d0e21e | 2510 | } |
533c011a | 2511 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2512 | if (! do_dump) |
cea2e8a9 | 2513 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2514 | } |
2515 | else | |
2516 | label = cPVOP->op_pv; | |
2517 | ||
2518 | if (label && *label) { | |
cbbf8932 | 2519 | OP *gotoprobe = NULL; |
3b2447bc | 2520 | bool leaving_eval = FALSE; |
33d34e4c | 2521 | bool in_block = FALSE; |
cbbf8932 | 2522 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2523 | |
2524 | /* find label */ | |
2525 | ||
d4c19fe8 | 2526 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2527 | *enterops = 0; |
2528 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2529 | cx = &cxstack[ix]; | |
6b35e009 | 2530 | switch (CxTYPE(cx)) { |
a0d0e21e | 2531 | case CXt_EVAL: |
3b2447bc | 2532 | leaving_eval = TRUE; |
971ecbe6 | 2533 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2534 | gotoprobe = (last_eval_cx ? |
2535 | last_eval_cx->blk_eval.old_eval_root : | |
2536 | PL_eval_root); | |
2537 | last_eval_cx = cx; | |
9c5794fe RH |
2538 | break; |
2539 | } | |
2540 | /* else fall through */ | |
a0d0e21e LW |
2541 | case CXt_LOOP: |
2542 | gotoprobe = cx->blk_oldcop->op_sibling; | |
2543 | break; | |
2544 | case CXt_SUBST: | |
2545 | continue; | |
2546 | case CXt_BLOCK: | |
33d34e4c | 2547 | if (ix) { |
a0d0e21e | 2548 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2549 | in_block = TRUE; |
2550 | } else | |
3280af22 | 2551 | gotoprobe = PL_main_root; |
a0d0e21e | 2552 | break; |
b3933176 | 2553 | case CXt_SUB: |
9850bf21 | 2554 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2555 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2556 | break; | |
2557 | } | |
2558 | /* FALL THROUGH */ | |
7766f137 | 2559 | case CXt_FORMAT: |
0a753a76 | 2560 | case CXt_NULL: |
a651a37d | 2561 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2562 | default: |
2563 | if (ix) | |
cea2e8a9 | 2564 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2565 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2566 | break; |
2567 | } | |
2b597662 GS |
2568 | if (gotoprobe) { |
2569 | retop = dofindlabel(gotoprobe, label, | |
2570 | enterops, enterops + GOTO_DEPTH); | |
2571 | if (retop) | |
2572 | break; | |
2573 | } | |
3280af22 | 2574 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2575 | } |
2576 | if (!retop) | |
cea2e8a9 | 2577 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2578 | |
3b2447bc RH |
2579 | /* if we're leaving an eval, check before we pop any frames |
2580 | that we're not going to punt, otherwise the error | |
2581 | won't be caught */ | |
2582 | ||
2583 | if (leaving_eval && *enterops && enterops[1]) { | |
2584 | I32 i; | |
2585 | for (i = 1; enterops[i]; i++) | |
2586 | if (enterops[i]->op_type == OP_ENTERITER) | |
2587 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2588 | } | |
2589 | ||
a0d0e21e LW |
2590 | /* pop unwanted frames */ |
2591 | ||
2592 | if (ix < cxstack_ix) { | |
2593 | I32 oldsave; | |
2594 | ||
2595 | if (ix < 0) | |
2596 | ix = 0; | |
2597 | dounwind(ix); | |
2598 | TOPBLOCK(cx); | |
3280af22 | 2599 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2600 | LEAVE_SCOPE(oldsave); |
2601 | } | |
2602 | ||
2603 | /* push wanted frames */ | |
2604 | ||
748a9306 | 2605 | if (*enterops && enterops[1]) { |
0bd48802 | 2606 | OP * const oldop = PL_op; |
33d34e4c AE |
2607 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2608 | for (; enterops[ix]; ix++) { | |
533c011a | 2609 | PL_op = enterops[ix]; |
84902520 TB |
2610 | /* Eventually we may want to stack the needed arguments |
2611 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2612 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2613 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2614 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2615 | } |
533c011a | 2616 | PL_op = oldop; |
a0d0e21e LW |
2617 | } |
2618 | } | |
2619 | ||
2620 | if (do_dump) { | |
a5f75d66 | 2621 | #ifdef VMS |
6b88bc9c | 2622 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2623 | #endif |
3280af22 NIS |
2624 | PL_restartop = retop; |
2625 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2626 | |
2627 | my_unexec(); | |
2628 | ||
3280af22 NIS |
2629 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2630 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2631 | } |
2632 | ||
2633 | RETURNOP(retop); | |
2634 | } | |
2635 | ||
2636 | PP(pp_exit) | |
2637 | { | |
97aff369 | 2638 | dVAR; |
39644a26 | 2639 | dSP; |
a0d0e21e LW |
2640 | I32 anum; |
2641 | ||
2642 | if (MAXARG < 1) | |
2643 | anum = 0; | |
ff0cee69 | 2644 | else { |
a0d0e21e | 2645 | anum = SvIVx(POPs); |
d98f61e7 GS |
2646 | #ifdef VMS |
2647 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2648 | anum = 0; |
96e176bf | 2649 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2650 | #endif |
2651 | } | |
cc3604b1 | 2652 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2653 | #ifdef PERL_MAD |
2654 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2655 | if (anum || !(PL_minus_c && PL_madskills)) | |
2656 | my_exit(anum); | |
2657 | #else | |
a0d0e21e | 2658 | my_exit(anum); |
81d86705 | 2659 | #endif |
3280af22 | 2660 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2661 | RETURN; |
2662 | } | |
2663 | ||
a0d0e21e LW |
2664 | /* Eval. */ |
2665 | ||
0824fdcb | 2666 | STATIC void |
cea2e8a9 | 2667 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2668 | { |
504618e9 | 2669 | const char *s = SvPVX_const(sv); |
890ce7af | 2670 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2671 | I32 line = 1; |
a0d0e21e LW |
2672 | |
2673 | while (s && s < send) { | |
f54cb97a | 2674 | const char *t; |
561b68a9 | 2675 | SV * const tmpstr = newSV(0); |
a0d0e21e LW |
2676 | |
2677 | sv_upgrade(tmpstr, SVt_PVMG); | |
2678 | t = strchr(s, '\n'); | |
2679 | if (t) | |
2680 | t++; | |
2681 | else | |
2682 | t = send; | |
2683 | ||
2684 | sv_setpvn(tmpstr, s, t - s); | |
2685 | av_store(array, line++, tmpstr); | |
2686 | s = t; | |
2687 | } | |
2688 | } | |
2689 | ||
901017d6 | 2690 | STATIC void |
14dd3ad8 GS |
2691 | S_docatch_body(pTHX) |
2692 | { | |
97aff369 | 2693 | dVAR; |
cea2e8a9 | 2694 | CALLRUNOPS(aTHX); |
901017d6 | 2695 | return; |
312caa8e CS |
2696 | } |
2697 | ||
0824fdcb | 2698 | STATIC OP * |
cea2e8a9 | 2699 | S_docatch(pTHX_ OP *o) |
1e422769 | 2700 | { |
97aff369 | 2701 | dVAR; |
6224f72b | 2702 | int ret; |
06b5626a | 2703 | OP * const oldop = PL_op; |
db36c5a1 | 2704 | dJMPENV; |
1e422769 | 2705 | |
1e422769 | 2706 | #ifdef DEBUGGING |
54310121 | 2707 | assert(CATCH_GET == TRUE); |
1e422769 | 2708 | #endif |
312caa8e | 2709 | PL_op = o; |
8bffa5f8 | 2710 | |
14dd3ad8 | 2711 | JMPENV_PUSH(ret); |
6224f72b | 2712 | switch (ret) { |
312caa8e | 2713 | case 0: |
abd70938 DM |
2714 | assert(cxstack_ix >= 0); |
2715 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2716 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 GS |
2717 | redo_body: |
2718 | docatch_body(); | |
312caa8e CS |
2719 | break; |
2720 | case 3: | |
8bffa5f8 | 2721 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2722 | |
2723 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2724 | * of the stack; the way die_where() currently works, this | |
2725 | * assumption is valid. In theory The cur_top_env value should be | |
2726 | * returned in another global, the way retop (aka PL_restartop) | |
2727 | * is. */ | |
2728 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2729 | ||
2730 | if (PL_restartop | |
2731 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2732 | { | |
312caa8e CS |
2733 | PL_op = PL_restartop; |
2734 | PL_restartop = 0; | |
2735 | goto redo_body; | |
2736 | } | |
2737 | /* FALL THROUGH */ | |
2738 | default: | |
14dd3ad8 | 2739 | JMPENV_POP; |
533c011a | 2740 | PL_op = oldop; |
6224f72b | 2741 | JMPENV_JUMP(ret); |
1e422769 | 2742 | /* NOTREACHED */ |
1e422769 | 2743 | } |
14dd3ad8 | 2744 | JMPENV_POP; |
533c011a | 2745 | PL_op = oldop; |
5f66b61c | 2746 | return NULL; |
1e422769 | 2747 | } |
2748 | ||
c277df42 | 2749 | OP * |
bfed75c6 | 2750 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2751 | /* sv Text to convert to OP tree. */ |
2752 | /* startop op_free() this to undo. */ | |
2753 | /* code Short string id of the caller. */ | |
2754 | { | |
f7997f86 | 2755 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2756 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2757 | PERL_CONTEXT *cx; |
2758 | SV **newsp; | |
b094c71d | 2759 | I32 gimme = G_VOID; |
c277df42 IZ |
2760 | I32 optype; |
2761 | OP dummy; | |
155aba94 | 2762 | OP *rop; |
83ee9e09 GS |
2763 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2764 | char *tmpbuf = tbuf; | |
c277df42 | 2765 | char *safestr; |
a3985cdc | 2766 | int runtime; |
601f1833 | 2767 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2768 | STRLEN len; |
c277df42 IZ |
2769 | |
2770 | ENTER; | |
2771 | lex_start(sv); | |
2772 | SAVETMPS; | |
2773 | /* switch to eval mode */ | |
2774 | ||
923e4eb5 | 2775 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2776 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2777 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2778 | } |
83ee9e09 | 2779 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2780 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2781 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2782 | code, (unsigned long)++PL_evalseq, | |
2783 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2784 | tmpbuf = SvPVX(sv); | |
fc009855 | 2785 | len = SvCUR(sv); |
83ee9e09 GS |
2786 | } |
2787 | else | |
d9fad198 JH |
2788 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2789 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2790 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2791 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2792 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2793 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2794 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2795 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2796 | (i.e. before run-time proper). To work around the coredump that | |
2797 | ensues, we always turn GvMULTI_on for any globals that were | |
2798 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2799 | safestr = savepvn(tmpbuf, len); |
2800 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2801 | SAVEHINTS(); |
d1ca3daa | 2802 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2803 | PL_opsave = op; |
d1ca3daa | 2804 | #else |
7766f137 | 2805 | SAVEVPTR(PL_op); |
d1ca3daa | 2806 | #endif |
c277df42 | 2807 | |
a3985cdc | 2808 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2809 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2810 | if (runtime) |
d819b83a | 2811 | runcv = find_runcv(NULL); |
a3985cdc | 2812 | |
533c011a | 2813 | PL_op = &dummy; |
13b51b79 | 2814 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2815 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2816 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
a0714e2c | 2817 | PUSHEVAL(cx, 0, NULL); |
a3985cdc DM |
2818 | |
2819 | if (runtime) | |
2820 | rop = doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); | |
2821 | else | |
2822 | rop = doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); | |
13b51b79 | 2823 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2824 | POPEVAL(cx); |
c277df42 IZ |
2825 | |
2826 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2827 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2828 | lex_end(); |
f3548bdc | 2829 | /* XXX DAPM do this properly one year */ |
b37c2d43 | 2830 | *padp = (AV*)SvREFCNT_inc_simple(PL_comppad); |
c277df42 | 2831 | LEAVE; |
923e4eb5 | 2832 | if (IN_PERL_COMPILETIME) |
623e6609 | 2833 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2834 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2835 | op = PL_opsave; |
d1ca3daa | 2836 | #endif |
9d4ba2ae AL |
2837 | PERL_UNUSED_VAR(newsp); |
2838 | PERL_UNUSED_VAR(optype); | |
2839 | ||
c277df42 IZ |
2840 | return rop; |
2841 | } | |
2842 | ||
a3985cdc DM |
2843 | |
2844 | /* | |
2845 | =for apidoc find_runcv | |
2846 | ||
2847 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2848 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2849 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2850 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2851 | than in the scope of the debugger itself). |
a3985cdc DM |
2852 | |
2853 | =cut | |
2854 | */ | |
2855 | ||
2856 | CV* | |
d819b83a | 2857 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2858 | { |
97aff369 | 2859 | dVAR; |
a3985cdc | 2860 | PERL_SI *si; |
a3985cdc | 2861 | |
d819b83a DM |
2862 | if (db_seqp) |
2863 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2864 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2865 | I32 ix; |
a3985cdc | 2866 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2867 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2868 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2869 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2870 | /* skip DB:: code */ |
2871 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2872 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2873 | continue; | |
2874 | } | |
2875 | return cv; | |
2876 | } | |
a3985cdc DM |
2877 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2878 | return PL_compcv; | |
2879 | } | |
2880 | } | |
2881 | return PL_main_cv; | |
2882 | } | |
2883 | ||
2884 | ||
2885 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2886 | * In the last case, startop is non-null, and contains the address of | |
2887 | * a pointer that should be set to the just-compiled code. | |
2888 | * outside is the lexically enclosing CV (if any) that invoked us. | |
2889 | */ | |
2890 | ||
4d1ff10f | 2891 | /* With USE_5005THREADS, eval_owner must be held on entry to doeval */ |
0824fdcb | 2892 | STATIC OP * |
a3985cdc | 2893 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 2894 | { |
27da23d5 | 2895 | dVAR; dSP; |
46c461b5 | 2896 | OP * const saveop = PL_op; |
a0d0e21e | 2897 | |
6dc8a9e4 IZ |
2898 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
2899 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
2900 | : EVAL_INEVAL); | |
a0d0e21e | 2901 | |
1ce6579f | 2902 | PUSHMARK(SP); |
2903 | ||
3280af22 | 2904 | SAVESPTR(PL_compcv); |
561b68a9 | 2905 | PL_compcv = (CV*)newSV(0); |
3280af22 | 2906 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
1aff0e91 | 2907 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
2908 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
2909 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
2910 | ||
a3985cdc | 2911 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
b37c2d43 | 2912 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outside); |
a3985cdc | 2913 | |
dd2155a4 | 2914 | /* set up a scratch pad */ |
a0d0e21e | 2915 | |
dd2155a4 | 2916 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 2917 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 2918 | |
07055b4c | 2919 | |
81d86705 NC |
2920 | if (!PL_madskills) |
2921 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 2922 | |
a0d0e21e LW |
2923 | /* make sure we compile in the right package */ |
2924 | ||
ed094faf | 2925 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 2926 | SAVESPTR(PL_curstash); |
ed094faf | 2927 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 2928 | } |
3c10abe3 | 2929 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
2930 | SAVESPTR(PL_beginav); |
2931 | PL_beginav = newAV(); | |
2932 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
2933 | SAVESPTR(PL_unitcheckav); |
2934 | PL_unitcheckav = newAV(); | |
2935 | SAVEFREESV(PL_unitcheckav); | |
24944567 | 2936 | SAVEI32(PL_error_count); |
a0d0e21e | 2937 | |
81d86705 NC |
2938 | #ifdef PERL_MAD |
2939 | SAVEI32(PL_madskills); | |
2940 | PL_madskills = 0; | |
2941 | #endif | |
2942 | ||
a0d0e21e LW |
2943 | /* try to compile it */ |
2944 | ||
5f66b61c | 2945 | PL_eval_root = NULL; |
3280af22 NIS |
2946 | PL_error_count = 0; |
2947 | PL_curcop = &PL_compiling; | |
fc15ae8f | 2948 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 2949 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 2950 | PL_in_eval |= EVAL_KEEPERR; |
1ce6579f | 2951 | else |
c69006e4 | 2952 | sv_setpvn(ERRSV,"",0); |
3280af22 | 2953 | if (yyparse() || PL_error_count || !PL_eval_root) { |
0c58d367 | 2954 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 2955 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 2956 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 2957 | const char *msg; |
bfed75c6 | 2958 | |
533c011a | 2959 | PL_op = saveop; |
3280af22 NIS |
2960 | if (PL_eval_root) { |
2961 | op_free(PL_eval_root); | |
5f66b61c | 2962 | PL_eval_root = NULL; |
a0d0e21e | 2963 | } |
3280af22 | 2964 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 2965 | if (!startop) { |
3280af22 | 2966 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2967 | POPEVAL(cx); |
c277df42 | 2968 | } |
a0d0e21e LW |
2969 | lex_end(); |
2970 | LEAVE; | |
9d4ba2ae AL |
2971 | |
2972 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 2973 | if (optype == OP_REQUIRE) { |
b464bac0 | 2974 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 2975 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 2976 | &PL_sv_undef, 0); |
5a844595 GS |
2977 | DIE(aTHX_ "%sCompilation failed in require", |
2978 | *msg ? msg : "Unknown error\n"); | |
2979 | } | |
2980 | else if (startop) { | |
3280af22 | 2981 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2982 | POPEVAL(cx); |
5a844595 GS |
2983 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
2984 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 2985 | } |
9d7f88dd | 2986 | else { |
9d7f88dd SR |
2987 | if (!*msg) { |
2988 | sv_setpv(ERRSV, "Compilation error"); | |
2989 | } | |
2990 | } | |
9d4ba2ae | 2991 | PERL_UNUSED_VAR(newsp); |
a0d0e21e LW |
2992 | RETPUSHUNDEF; |
2993 | } | |
57843af0 | 2994 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 2995 | if (startop) { |
3280af22 | 2996 | *startop = PL_eval_root; |
c277df42 | 2997 | } else |
3280af22 | 2998 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
2999 | |
3000 | /* Set the context for this new optree. | |
3001 | * If the last op is an OP_REQUIRE, force scalar context. | |
3002 | * Otherwise, propagate the context from the eval(). */ | |
3003 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
3004 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
3005 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
3006 | == OP_REQUIRE) | |
3007 | scalar(PL_eval_root); | |
3008 | else if (gimme & G_VOID) | |
3280af22 | 3009 | scalarvoid(PL_eval_root); |
54310121 | 3010 | else if (gimme & G_ARRAY) |
3280af22 | 3011 | list(PL_eval_root); |
a0d0e21e | 3012 | else |
3280af22 | 3013 | scalar(PL_eval_root); |
a0d0e21e LW |
3014 | |
3015 | DEBUG_x(dump_eval()); | |
3016 | ||
55497cff | 3017 | /* Register with debugger: */ |
6482a30d | 3018 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
890ce7af | 3019 | CV * const cv = get_cv("DB::postponed", FALSE); |
55497cff | 3020 | if (cv) { |
3021 | dSP; | |
924508f0 | 3022 | PUSHMARK(SP); |
cc49e20b | 3023 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
55497cff | 3024 | PUTBACK; |
864dbfa3 | 3025 | call_sv((SV*)cv, G_DISCARD); |
55497cff | 3026 | } |
3027 | } | |
3028 | ||
3c10abe3 AG |
3029 | if (PL_unitcheckav) |
3030 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3031 | ||
a0d0e21e LW |
3032 | /* compiled okay, so do it */ |
3033 | ||
3280af22 NIS |
3034 | CvDEPTH(PL_compcv) = 1; |
3035 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3036 | PL_op = saveop; /* The caller may need it. */ |
6dc8a9e4 | 3037 | PL_lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3038 | |
3280af22 | 3039 | RETURNOP(PL_eval_start); |
a0d0e21e LW |
3040 | } |
3041 | ||
a6c40364 | 3042 | STATIC PerlIO * |
74d5ed12 | 3043 | S_check_type_and_open(pTHX_ const char *name, const char *mode) |
ce8abf5f SP |
3044 | { |
3045 | Stat_t st; | |
c445ea15 | 3046 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3047 | |
6b845e56 | 3048 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3049 | return NULL; |
ce8abf5f SP |
3050 | } |
3051 | ||
ce8abf5f SP |
3052 | return PerlIO_open(name, mode); |
3053 | } | |
3054 | ||
3055 | STATIC PerlIO * | |
7925835c | 3056 | S_doopen_pm(pTHX_ const char *name, const char *mode) |
b295d113 | 3057 | { |
7925835c | 3058 | #ifndef PERL_DISABLE_PMC |
f54cb97a | 3059 | const STRLEN namelen = strlen(name); |
b295d113 TH |
3060 | PerlIO *fp; |
3061 | ||
7894fbab | 3062 | if (namelen > 3 && strEQ(name + namelen - 3, ".pm")) { |
9d4ba2ae | 3063 | SV * const pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c'); |
349d4f2f | 3064 | const char * const pmc = SvPV_nolen_const(pmcsv); |
a6c40364 GS |
3065 | Stat_t pmcstat; |
3066 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { | |
85e8f315 | 3067 | fp = check_type_and_open(name, mode); |
a6c40364 GS |
3068 | } |
3069 | else { | |
a91233bf | 3070 | fp = check_type_and_open(pmc, mode); |
b295d113 | 3071 | } |
a6c40364 GS |
3072 | SvREFCNT_dec(pmcsv); |
3073 | } | |
3074 | else { | |
85e8f315 | 3075 | fp = check_type_and_open(name, mode); |
b295d113 | 3076 | } |
b295d113 | 3077 | return fp; |
7925835c | 3078 | #else |
85e8f315 | 3079 | return check_type_and_open(name, mode); |
7925835c | 3080 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 TH |
3081 | } |
3082 | ||
a0d0e21e LW |
3083 | PP(pp_require) |
3084 | { | |
27da23d5 | 3085 | dVAR; dSP; |
c09156bb | 3086 | register PERL_CONTEXT *cx; |
a0d0e21e | 3087 | SV *sv; |
5c144d81 | 3088 | const char *name; |
6132ea6c | 3089 | STRLEN len; |
c445ea15 AL |
3090 | const char *tryname = NULL; |
3091 | SV *namesv = NULL; | |
f54cb97a | 3092 | const I32 gimme = GIMME_V; |
bbed91b5 | 3093 | int filter_has_file = 0; |
c445ea15 | 3094 | PerlIO *tryrsfp = NULL; |
34113e50 | 3095 | SV *filter_cache = NULL; |
c445ea15 AL |
3096 | SV *filter_state = NULL; |
3097 | SV *filter_sub = NULL; | |
3098 | SV *hook_sv = NULL; | |
6ec9efec JH |
3099 | SV *encoding; |
3100 | OP *op; | |
a0d0e21e LW |
3101 | |
3102 | sv = POPs; | |
d7aa5382 JP |
3103 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
3104 | if ( SvVOK(sv) && ckWARN(WARN_PORTABLE) ) /* require v5.6.1 */ | |
9014280d | 3105 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
e3407aba | 3106 | "v-string in use/require non-portable"); |
d7aa5382 JP |
3107 | |
3108 | sv = new_version(sv); | |
3109 | if (!sv_derived_from(PL_patchlevel, "version")) | |
2593c6c6 | 3110 | upg_version(PL_patchlevel); |
149c1637 | 3111 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3112 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3113 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
95b63a38 | 3114 | (void*)vnormal(sv), (void*)vnormal(PL_patchlevel)); |
468aa647 RGS |
3115 | } |
3116 | else { | |
3117 | if ( vcmp(sv,PL_patchlevel) > 0 ) | |
3118 | DIE(aTHX_ "Perl %"SVf" required--this is only %"SVf", stopped", | |
95b63a38 | 3119 | (void*)vnormal(sv), (void*)vnormal(PL_patchlevel)); |
468aa647 | 3120 | } |
d7aa5382 | 3121 | |
4305d8ab | 3122 | RETPUSHYES; |
a0d0e21e | 3123 | } |
5c144d81 | 3124 | name = SvPV_const(sv, len); |
6132ea6c | 3125 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3126 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3127 | TAINT_PROPER("require"); |
44f8325f | 3128 | if (PL_op->op_type == OP_REQUIRE) { |
0bd48802 | 3129 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); |
44f8325f AL |
3130 | if ( svp ) { |
3131 | if (*svp != &PL_sv_undef) | |
3132 | RETPUSHYES; | |
3133 | else | |
3134 | DIE(aTHX_ "Compilation failed in require"); | |
3135 | } | |
4d8b06f1 | 3136 | } |
a0d0e21e LW |
3137 | |
3138 | /* prepare to compile file */ | |
3139 | ||
be4b629d | 3140 | if (path_is_absolute(name)) { |
46fc3d4c | 3141 | tryname = name; |
7925835c | 3142 | tryrsfp = doopen_pm(name,PERL_SCRIPT_MODE); |
bf4acbe4 | 3143 | } |
67627c52 JH |
3144 | #ifdef MACOS_TRADITIONAL |
3145 | if (!tryrsfp) { | |
3146 | char newname[256]; | |
3147 | ||
3148 | MacPerl_CanonDir(name, newname, 1); | |
3149 | if (path_is_absolute(newname)) { | |
3150 | tryname = newname; | |
7925835c | 3151 | tryrsfp = doopen_pm(newname,PERL_SCRIPT_MODE); |
67627c52 JH |
3152 | } |
3153 | } | |
3154 | #endif | |
be4b629d | 3155 | if (!tryrsfp) { |
44f8325f | 3156 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3157 | I32 i; |
748a9306 | 3158 | #ifdef VMS |
46fc3d4c | 3159 | char *unixname; |
c445ea15 | 3160 | if ((unixname = tounixspec(name, NULL)) != NULL) |
46fc3d4c | 3161 | #endif |
3162 | { | |
561b68a9 | 3163 | namesv = newSV(0); |
46fc3d4c | 3164 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3165 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 KF |
3166 | |
3167 | if (SvROK(dirsv)) { | |
3168 | int count; | |
a3b58a99 | 3169 | SV **svp; |
bbed91b5 KF |
3170 | SV *loader = dirsv; |
3171 | ||
e14e2dc8 NC |
3172 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3173 | && !sv_isobject(loader)) | |
3174 | { | |
bbed91b5 KF |
3175 | loader = *av_fetch((AV *)SvRV(loader), 0, TRUE); |
3176 | } | |
3177 | ||
b900a521 | 3178 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3179 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3180 | tryname = SvPVX_const(namesv); |
c445ea15 | 3181 | tryrsfp = NULL; |
bbed91b5 KF |
3182 | |
3183 | ENTER; | |
3184 | SAVETMPS; | |
3185 | EXTEND(SP, 2); | |
3186 | ||
3187 | PUSHMARK(SP); | |
3188 | PUSHs(dirsv); | |
3189 | PUSHs(sv); | |
3190 | PUTBACK; | |
e982885c NC |
3191 | if (sv_isobject(loader)) |
3192 | count = call_method("INC", G_ARRAY); | |
3193 | else | |
3194 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3195 | SPAGAIN; |
3196 | ||
a3b58a99 RGS |
3197 | /* Adjust file name if the hook has set an %INC entry */ |
3198 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3199 | if (svp) | |
3200 | tryname = SvPVX_const(*svp); | |
3201 | ||
bbed91b5 KF |
3202 | if (count > 0) { |
3203 | int i = 0; | |
3204 | SV *arg; | |
3205 | ||
3206 | SP -= count - 1; | |
3207 | arg = SP[i++]; | |
3208 | ||
34113e50 NC |
3209 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3210 | && !isGV_with_GP(SvRV(arg))) { | |
3211 | filter_cache = SvRV(arg); | |
74c765eb | 3212 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3213 | |
3214 | if (i < count) { | |
3215 | arg = SP[i++]; | |
3216 | } | |
3217 | } | |
3218 | ||
bbed91b5 KF |
3219 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVGV) { |
3220 | arg = SvRV(arg); | |
3221 | } | |
3222 | ||
3223 | if (SvTYPE(arg) == SVt_PVGV) { | |
df528165 | 3224 | IO * const io = GvIO((GV *)arg); |
bbed91b5 KF |
3225 | |
3226 | ++filter_has_file; | |
3227 | ||
3228 | if (io) { | |
3229 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3230 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3231 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3232 | } |
0f7de14d NC |
3233 | IoIFP(io) = NULL; |
3234 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3235 | } |
3236 | ||
3237 | if (i < count) { | |
3238 | arg = SP[i++]; | |
3239 | } | |
3240 | } | |
3241 | ||
3242 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3243 | filter_sub = arg; | |
74c765eb | 3244 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3245 | |
3246 | if (i < count) { | |
3247 | filter_state = SP[i]; | |
b37c2d43 | 3248 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3249 | } |
34113e50 | 3250 | } |
bbed91b5 | 3251 | |
34113e50 NC |
3252 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3253 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3254 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3255 | } |
1d06aecd | 3256 | SP--; |
bbed91b5 KF |
3257 | } |
3258 | ||
3259 | PUTBACK; | |
3260 | FREETMPS; | |
3261 | LEAVE; | |
3262 | ||
3263 | if (tryrsfp) { | |
89ccab8c | 3264 | hook_sv = dirsv; |
bbed91b5 KF |
3265 | break; |
3266 | } | |
3267 | ||
3268 | filter_has_file = 0; | |
34113e50 NC |
3269 | if (filter_cache) { |
3270 | SvREFCNT_dec(filter_cache); | |
3271 | filter_cache = NULL; | |
3272 | } | |
bbed91b5 KF |
3273 | if (filter_state) { |
3274 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3275 | filter_state = NULL; |
bbed91b5 KF |
3276 | } |
3277 | if (filter_sub) { | |
3278 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3279 | filter_sub = NULL; |
bbed91b5 KF |
3280 | } |
3281 | } | |
3282 | else { | |
be4b629d CN |
3283 | if (!path_is_absolute(name) |
3284 | #ifdef MACOS_TRADITIONAL | |
3285 | /* We consider paths of the form :a:b ambiguous and interpret them first | |
3286 | as global then as local | |
3287 | */ | |
3288 | || (*name == ':' && name[1] != ':' && strchr(name+2, ':')) | |
3289 | #endif | |
3290 | ) { | |
0510663f | 3291 | const char *dir = SvPVx_nolen_const(dirsv); |
bf4acbe4 | 3292 | #ifdef MACOS_TRADITIONAL |
67627c52 JH |
3293 | char buf1[256]; |
3294 | char buf2[256]; | |
3295 | ||
3296 | MacPerl_CanonDir(name, buf2, 1); | |
3297 | Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':')); | |
bf4acbe4 | 3298 | #else |
27da23d5 | 3299 | # ifdef VMS |
bbed91b5 | 3300 | char *unixdir; |
c445ea15 | 3301 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3302 | continue; |
3303 | sv_setpv(namesv, unixdir); | |
3304 | sv_catpv(namesv, unixname); | |
27da23d5 | 3305 | # else |
a0fd4948 | 3306 | # ifdef __SYMBIAN32__ |
27da23d5 JH |
3307 | if (PL_origfilename[0] && |
3308 | PL_origfilename[1] == ':' && | |
3309 | !(dir[0] && dir[1] == ':')) | |
3310 | Perl_sv_setpvf(aTHX_ namesv, | |
3311 | "%c:%s\\%s", | |
3312 | PL_origfilename[0], | |
3313 | dir, name); | |
3314 | else | |
3315 | Perl_sv_setpvf(aTHX_ namesv, | |
3316 | "%s\\%s", | |
3317 | dir, name); | |
3318 | # else | |
bbed91b5 | 3319 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); |
27da23d5 JH |
3320 | # endif |
3321 | # endif | |
bf4acbe4 | 3322 | #endif |
bbed91b5 | 3323 | TAINT_PROPER("require"); |
349d4f2f | 3324 | tryname = SvPVX_const(namesv); |
7925835c | 3325 | tryrsfp = doopen_pm(tryname, PERL_SCRIPT_MODE); |
bbed91b5 KF |
3326 | if (tryrsfp) { |
3327 | if (tryname[0] == '.' && tryname[1] == '/') | |
3328 | tryname += 2; | |
3329 | break; | |
3330 | } | |
ff806af2 DM |
3331 | else if (errno == EMFILE) |
3332 | /* no point in trying other paths if out of handles */ | |
3333 | break; | |
be4b629d | 3334 | } |
46fc3d4c | 3335 | } |
a0d0e21e LW |
3336 | } |
3337 | } | |
3338 | } | |
f4dd75d9 | 3339 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3340 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3341 | SvREFCNT_dec(namesv); |
a0d0e21e | 3342 | if (!tryrsfp) { |
533c011a | 3343 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3344 | const char *msgstr = name; |
e31de809 | 3345 | if(errno == EMFILE) { |
b9b739dc NC |
3346 | SV * const msg |
3347 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3348 | Strerror(errno))); | |
349d4f2f | 3349 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3350 | } else { |
3351 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3352 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3353 | I32 i; |
b8f04b1b NC |
3354 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3355 | "%s in @INC%s%s (@INC contains:", | |
3356 | msgstr, | |
3357 | (instr(msgstr, ".h ") | |
3358 | ? " (change .h to .ph maybe?)" : ""), | |
3359 | (instr(msgstr, ".ph ") | |
3360 | ? " (did you run h2ph?)" : "") | |
3361 | )); | |
3362 | ||
e31de809 | 3363 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3364 | sv_catpvs(msg, " "); |
b8f04b1b | 3365 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3366 | } |
396482e1 | 3367 | sv_catpvs(msg, ")"); |
e31de809 SP |
3368 | msgstr = SvPV_nolen_const(msg); |
3369 | } | |
2683423c | 3370 | } |
ea071790 | 3371 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3372 | } |
3373 | ||
3374 | RETPUSHUNDEF; | |
3375 | } | |
d8bfb8bd | 3376 | else |
93189314 | 3377 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3378 | |
3379 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3380 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3381 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f AL |
3382 | if (!hook_sv) { |
3383 | (void)hv_store(GvHVn(PL_incgv), name, len, newSVpv(CopFILE(&PL_compiling),0),0); | |
3384 | } else { | |
3385 | SV** const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3386 | if (!svp) | |
b37c2d43 | 3387 | (void)hv_store(GvHVn(PL_incgv), name, len, SvREFCNT_inc_simple(hook_sv), 0 ); |
d3a4e64e | 3388 | } |
a0d0e21e LW |
3389 | |
3390 | ENTER; | |
3391 | SAVETMPS; | |
396482e1 | 3392 | lex_start(sv_2mortal(newSVpvs(""))); |
b9d12d37 | 3393 | SAVEGENERICSV(PL_rsfp_filters); |
7d49f689 | 3394 | PL_rsfp_filters = NULL; |
e50aee73 | 3395 | |
3280af22 | 3396 | PL_rsfp = tryrsfp; |
b3ac6de7 | 3397 | SAVEHINTS(); |
3280af22 | 3398 | PL_hints = 0; |
68da3b2f | 3399 | SAVECOMPILEWARNINGS(); |
0453d815 | 3400 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3401 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3402 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3403 | PL_compiling.cop_warnings = pWARN_NONE ; |
72dc9ed5 NC |
3404 | else if (PL_taint_warn) { |
3405 | PL_compiling.cop_warnings | |
8ee4cf24 | 3406 | = Perl_new_warnings_bitfield(aTHX_ NULL, WARN_TAINTstring, WARNsize); |
72dc9ed5 | 3407 | } |
ac27b0f5 | 3408 | else |
d3a7d8c7 | 3409 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3410 | |
34113e50 | 3411 | if (filter_sub || filter_cache) { |
c445ea15 | 3412 | SV * const datasv = filter_add(S_run_user_filter, NULL); |
bbed91b5 | 3413 | IoLINES(datasv) = filter_has_file; |
bbed91b5 KF |
3414 | IoTOP_GV(datasv) = (GV *)filter_state; |
3415 | IoBOTTOM_GV(datasv) = (GV *)filter_sub; | |
34113e50 | 3416 | IoFMT_GV(datasv) = (GV *)filter_cache; |
bbed91b5 KF |
3417 | } |
3418 | ||
3419 | /* switch to eval mode */ | |
a0d0e21e | 3420 | PUSHBLOCK(cx, CXt_EVAL, SP); |
a0714e2c | 3421 | PUSHEVAL(cx, name, NULL); |
f39bc417 | 3422 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3423 | |
57843af0 GS |
3424 | SAVECOPLINE(&PL_compiling); |
3425 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3426 | |
3427 | PUTBACK; | |
6ec9efec JH |
3428 | |
3429 | /* Store and reset encoding. */ | |
3430 | encoding = PL_encoding; | |
c445ea15 | 3431 | PL_encoding = NULL; |
6ec9efec | 3432 | |
601f1833 | 3433 | op = DOCATCH(doeval(gimme, NULL, NULL, PL_curcop->cop_seq)); |
bfed75c6 | 3434 | |
6ec9efec JH |
3435 | /* Restore encoding. */ |
3436 | PL_encoding = encoding; | |
3437 | ||
3438 | return op; | |
a0d0e21e LW |
3439 | } |
3440 | ||
a0d0e21e LW |
3441 | PP(pp_entereval) |
3442 | { | |
27da23d5 | 3443 | dVAR; dSP; |
c09156bb | 3444 | register PERL_CONTEXT *cx; |
0d863452 | 3445 | SV *sv; |
890ce7af AL |
3446 | const I32 gimme = GIMME_V; |
3447 | const I32 was = PL_sub_generation; | |
83ee9e09 GS |
3448 | char tbuf[TYPE_DIGITS(long) + 12]; |
3449 | char *tmpbuf = tbuf; | |
fc36a67e | 3450 | char *safestr; |
a0d0e21e | 3451 | STRLEN len; |
55497cff | 3452 | OP *ret; |
a3985cdc | 3453 | CV* runcv; |
d819b83a | 3454 | U32 seq; |
c445ea15 | 3455 | HV *saved_hh = NULL; |
e80fed9d | 3456 | const char * const fakestr = "_<(eval )"; |
e80fed9d | 3457 | const int fakelen = 9 + 1; |
0d863452 RH |
3458 | |
3459 | if (PL_op->op_private & OPpEVAL_HAS_HH) { | |
3460 | saved_hh = (HV*) SvREFCNT_inc(POPs); | |
3461 | } | |
3462 | sv = POPs; | |
a0d0e21e | 3463 | |
748a9306 | 3464 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3465 | |
3466 | ENTER; | |
a0d0e21e | 3467 | lex_start(sv); |
748a9306 | 3468 | SAVETMPS; |
ac27b0f5 | 3469 | |
a0d0e21e LW |
3470 | /* switch to eval mode */ |
3471 | ||
83ee9e09 | 3472 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3473 | SV * const temp_sv = sv_newmortal(); |
3474 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3475 | (unsigned long)++PL_evalseq, |
3476 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3477 | tmpbuf = SvPVX(temp_sv); |
3478 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3479 | } |
3480 | else | |
d9fad198 | 3481 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3482 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3483 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3484 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3485 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3486 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3487 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3488 | (i.e. before run-time proper). To work around the coredump that | |
3489 | ensues, we always turn GvMULTI_on for any globals that were | |
3490 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3491 | safestr = savepvn(tmpbuf, len); |
3492 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3493 | SAVEHINTS(); |
533c011a | 3494 | PL_hints = PL_op->op_targ; |
0d863452 RH |
3495 | if (saved_hh) |
3496 | GvHV(PL_hintgv) = saved_hh; | |
68da3b2f | 3497 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3498 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3499 | if (PL_compiling.cop_hints_hash) { |
3500 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3501 | } |
c28fe1ec NC |
3502 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; |
3503 | if (PL_compiling.cop_hints_hash) { | |
cbb1fbea | 3504 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3505 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3506 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3507 | } |
d819b83a DM |
3508 | /* special case: an eval '' executed within the DB package gets lexically |
3509 | * placed in the first non-DB CV rather than the current CV - this | |
3510 | * allows the debugger to execute code, find lexicals etc, in the | |
3511 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3512 | * to do the dirty work for us */ | |
3513 | runcv = find_runcv(&seq); | |
a0d0e21e | 3514 | |
6b35e009 | 3515 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
a0714e2c | 3516 | PUSHEVAL(cx, 0, NULL); |
f39bc417 | 3517 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3518 | |
3519 | /* prepare to compile string */ | |
3520 | ||
3280af22 | 3521 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
cc49e20b | 3522 | save_lines(CopFILEAV(&PL_compiling), PL_linestr); |
a0d0e21e | 3523 | PUTBACK; |
d819b83a | 3524 | ret = doeval(gimme, NULL, runcv, seq); |
eb160463 | 3525 | if (PERLDB_INTER && was != (I32)PL_sub_generation /* Some subs defined here. */ |
533c011a | 3526 | && ret != PL_op->op_next) { /* Successive compilation. */ |
e80fed9d | 3527 | /* Copy in anything fake and short. */ |
28f0d0ec | 3528 | my_strlcpy(safestr, fakestr, fakelen); |
55497cff | 3529 | } |
1e422769 | 3530 | return DOCATCH(ret); |
a0d0e21e LW |
3531 | } |
3532 | ||
3533 | PP(pp_leaveeval) | |
3534 | { | |
27da23d5 | 3535 | dVAR; dSP; |
a0d0e21e LW |
3536 | register SV **mark; |
3537 | SV **newsp; | |
3538 | PMOP *newpm; | |
3539 | I32 gimme; | |
c09156bb | 3540 | register PERL_CONTEXT *cx; |
a0d0e21e | 3541 | OP *retop; |
06b5626a | 3542 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3543 | I32 optype; |
3544 | ||
3545 | POPBLOCK(cx,newpm); | |
3546 | POPEVAL(cx); | |
f39bc417 | 3547 | retop = cx->blk_eval.retop; |
a0d0e21e | 3548 | |
a1f49e72 | 3549 | TAINT_NOT; |
54310121 | 3550 | if (gimme == G_VOID) |
3551 | MARK = newsp; | |
3552 | else if (gimme == G_SCALAR) { | |
3553 | MARK = newsp + 1; | |
3554 | if (MARK <= SP) { | |
3555 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3556 | *MARK = TOPs; | |
3557 | else | |
3558 | *MARK = sv_mortalcopy(TOPs); | |
3559 | } | |
a0d0e21e | 3560 | else { |
54310121 | 3561 | MEXTEND(mark,0); |
3280af22 | 3562 | *MARK = &PL_sv_undef; |
a0d0e21e | 3563 | } |
a7ec2b44 | 3564 | SP = MARK; |
a0d0e21e LW |
3565 | } |
3566 | else { | |
a1f49e72 CS |
3567 | /* in case LEAVE wipes old return values */ |
3568 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3569 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3570 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3571 | TAINT_NOT; /* Each item is independent */ |
3572 | } | |
3573 | } | |
a0d0e21e | 3574 | } |
3280af22 | 3575 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3576 | |
4fdae800 | 3577 | #ifdef DEBUGGING |
3280af22 | 3578 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3579 | #endif |
3280af22 | 3580 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3581 | lex_end(); |
4fdae800 | 3582 | |
1ce6579f | 3583 | if (optype == OP_REQUIRE && |
924508f0 | 3584 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3585 | { |
1ce6579f | 3586 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3587 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3588 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
95b63a38 | 3589 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", (void*)nsv); |
f46d017c GS |
3590 | /* die_where() did LEAVE, or we won't be here */ |
3591 | } | |
3592 | else { | |
3593 | LEAVE; | |
3594 | if (!(save_flags & OPf_SPECIAL)) | |
c69006e4 | 3595 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 3596 | } |
a0d0e21e LW |
3597 | |
3598 | RETURNOP(retop); | |
3599 | } | |
3600 | ||
edb2152a NC |
3601 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3602 | close to the related Perl_create_eval_scope. */ | |
3603 | void | |
3604 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3605 | { |
edb2152a NC |
3606 | SV **newsp; |
3607 | PMOP *newpm; | |
3608 | I32 gimme; | |
c09156bb | 3609 | register PERL_CONTEXT *cx; |
edb2152a NC |
3610 | I32 optype; |
3611 | ||
3612 | POPBLOCK(cx,newpm); | |
3613 | POPEVAL(cx); | |
3614 | PL_curpm = newpm; | |
3615 | LEAVE; | |
3616 | PERL_UNUSED_VAR(newsp); | |
3617 | PERL_UNUSED_VAR(gimme); | |
3618 | PERL_UNUSED_VAR(optype); | |
3619 | } | |
a0d0e21e | 3620 | |
edb2152a NC |
3621 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3622 | also needed by Perl_fold_constants. */ | |
3623 | PERL_CONTEXT * | |
3624 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3625 | { | |
3626 | PERL_CONTEXT *cx; | |
3627 | const I32 gimme = GIMME_V; | |
3628 | ||
a0d0e21e LW |
3629 | ENTER; |
3630 | SAVETMPS; | |
3631 | ||
edb2152a | 3632 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
a0d0e21e | 3633 | PUSHEVAL(cx, 0, 0); |
edb2152a | 3634 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
a0d0e21e | 3635 | |
faef0170 | 3636 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3637 | if (flags & G_KEEPERR) |
3638 | PL_in_eval |= EVAL_KEEPERR; | |
3639 | else | |
3640 | sv_setpvn(ERRSV,"",0); | |
3641 | if (flags & G_FAKINGEVAL) { | |
3642 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3643 | } | |
3644 | return cx; | |
3645 | } | |
3646 | ||
3647 | PP(pp_entertry) | |
3648 | { | |
3649 | dVAR; | |
df528165 | 3650 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3651 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3652 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3653 | } |
3654 | ||
3655 | PP(pp_leavetry) | |
3656 | { | |
27da23d5 | 3657 | dVAR; dSP; |
a0d0e21e LW |
3658 | SV **newsp; |
3659 | PMOP *newpm; | |
3660 | I32 gimme; | |
c09156bb | 3661 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3662 | I32 optype; |
3663 | ||
3664 | POPBLOCK(cx,newpm); | |
3665 | POPEVAL(cx); | |
9d4ba2ae | 3666 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3667 | |
a1f49e72 | 3668 | TAINT_NOT; |
54310121 | 3669 | if (gimme == G_VOID) |
3670 | SP = newsp; | |
3671 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3672 | register SV **mark; |
54310121 | 3673 | MARK = newsp + 1; |
3674 | if (MARK <= SP) { | |
3675 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3676 | *MARK = TOPs; | |
3677 | else | |
3678 | *MARK = sv_mortalcopy(TOPs); | |
3679 | } | |
a0d0e21e | 3680 | else { |
54310121 | 3681 | MEXTEND(mark,0); |
3280af22 | 3682 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3683 | } |
3684 | SP = MARK; | |
3685 | } | |
3686 | else { | |
a1f49e72 | 3687 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3688 | register SV **mark; |
a1f49e72 CS |
3689 | for (mark = newsp + 1; mark <= SP; mark++) { |
3690 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3691 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3692 | TAINT_NOT; /* Each item is independent */ |
3693 | } | |
3694 | } | |
a0d0e21e | 3695 | } |
3280af22 | 3696 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3697 | |
3698 | LEAVE; | |
c69006e4 | 3699 | sv_setpvn(ERRSV,"",0); |
745cf2ff | 3700 | RETURN; |
a0d0e21e LW |
3701 | } |
3702 | ||
0d863452 RH |
3703 | PP(pp_entergiven) |
3704 | { | |
3705 | dVAR; dSP; | |
3706 | register PERL_CONTEXT *cx; | |
3707 | const I32 gimme = GIMME_V; | |
3708 | ||
3709 | ENTER; | |
3710 | SAVETMPS; | |
3711 | ||
3712 | if (PL_op->op_targ == 0) { | |
c445ea15 | 3713 | SV ** const defsv_p = &GvSV(PL_defgv); |
0d863452 RH |
3714 | *defsv_p = newSVsv(POPs); |
3715 | SAVECLEARSV(*defsv_p); | |
3716 | } | |
3717 | else | |
3718 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); | |
3719 | ||
3720 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3721 | PUSHGIVEN(cx); | |
3722 | ||
3723 | RETURN; | |
3724 | } | |
3725 | ||
3726 | PP(pp_leavegiven) | |
3727 | { | |
3728 | dVAR; dSP; | |
3729 | register PERL_CONTEXT *cx; | |
3730 | I32 gimme; | |
3731 | SV **newsp; | |
3732 | PMOP *newpm; | |
96a5add6 | 3733 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3734 | |
3735 | POPBLOCK(cx,newpm); | |
3736 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3737 | |
3738 | SP = newsp; | |
3739 | PUTBACK; | |
3740 | ||
3741 | PL_curpm = newpm; /* pop $1 et al */ | |
3742 | ||
3743 | LEAVE; | |
3744 | ||
3745 | return NORMAL; | |
3746 | } | |
3747 | ||
3748 | /* Helper routines used by pp_smartmatch */ | |
3749 | STATIC | |
3750 | PMOP * | |
3751 | S_make_matcher(pTHX_ regexp *re) | |
3752 | { | |
97aff369 | 3753 | dVAR; |
0d863452 RH |
3754 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
3755 | PM_SETRE(matcher, ReREFCNT_inc(re)); | |
3756 | ||
3757 | SAVEFREEOP((OP *) matcher); | |
3758 | ENTER; SAVETMPS; | |
3759 | SAVEOP(); | |
3760 | return matcher; | |
3761 | } | |
3762 | ||
3763 | STATIC | |
3764 | bool | |
3765 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) | |
3766 | { | |
97aff369 | 3767 | dVAR; |
0d863452 RH |
3768 | dSP; |
3769 | ||
3770 | PL_op = (OP *) matcher; | |
3771 | XPUSHs(sv); | |
3772 | PUTBACK; | |
3773 | (void) pp_match(); | |
3774 | SPAGAIN; | |
3775 | return (SvTRUEx(POPs)); | |
3776 | } | |
3777 | ||
3778 | STATIC | |
3779 | void | |
3780 | S_destroy_matcher(pTHX_ PMOP *matcher) | |
3781 | { | |
97aff369 | 3782 | dVAR; |
0d863452 RH |
3783 | PERL_UNUSED_ARG(matcher); |
3784 | FREETMPS; | |
3785 | LEAVE; | |
3786 | } | |
3787 | ||
3788 | /* Do a smart match */ | |
3789 | PP(pp_smartmatch) | |
3790 | { | |
a0714e2c | 3791 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
3792 | } |
3793 | ||
4b021f5f RGS |
3794 | /* This version of do_smartmatch() implements the |
3795 | * table of smart matches that is found in perlsyn. | |
0d863452 RH |
3796 | */ |
3797 | STATIC | |
3798 | OP * | |
3799 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) | |
3800 | { | |
97aff369 | 3801 | dVAR; |
0d863452 RH |
3802 | dSP; |
3803 | ||
3804 | SV *e = TOPs; /* e is for 'expression' */ | |
3805 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
10edeb5d | 3806 | SV *This, *Other; /* 'This' (and Other to match) to play with C++ */ |
0d863452 RH |
3807 | MAGIC *mg; |
3808 | regexp *this_regex, *other_regex; | |
3809 | ||
3810 | # define NOT_EMPTY_PROTO(cv) (!SvPOK(cv) || SvCUR(cv) == 0) | |
3811 | ||
3812 | # define SM_REF(type) ( \ | |
10edeb5d JH |
3813 | (SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_##type) && (Other = e)) \ |
3814 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_##type) && (Other = d))) | |
0d863452 RH |
3815 | |
3816 | # define SM_CV_NEP /* Find a code ref without an empty prototype */ \ | |
10edeb5d JH |
3817 | ((SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_PVCV) \ |
3818 | && NOT_EMPTY_PROTO(This) && (Other = e)) \ | |
3819 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_PVCV) \ | |
3820 | && NOT_EMPTY_PROTO(This) && (Other = d))) | |
0d863452 RH |
3821 | |
3822 | # define SM_REGEX ( \ | |
10edeb5d JH |
3823 | (SvROK(d) && SvMAGICAL(This = SvRV(d)) \ |
3824 | && (mg = mg_find(This, PERL_MAGIC_qr)) \ | |
0d863452 | 3825 | && (this_regex = (regexp *)mg->mg_obj) \ |
10edeb5d | 3826 | && (Other = e)) \ |
0d863452 | 3827 | || \ |
10edeb5d JH |
3828 | (SvROK(e) && SvMAGICAL(This = SvRV(e)) \ |
3829 | && (mg = mg_find(This, PERL_MAGIC_qr)) \ | |
0d863452 | 3830 | && (this_regex = (regexp *)mg->mg_obj) \ |
10edeb5d | 3831 | && (Other = d)) ) |
0d863452 RH |
3832 | |
3833 | ||
3834 | # define SM_OTHER_REF(type) \ | |
10edeb5d | 3835 | (SvROK(Other) && SvTYPE(SvRV(Other)) == SVt_##type) |
0d863452 | 3836 | |
10edeb5d JH |
3837 | # define SM_OTHER_REGEX (SvROK(Other) && SvMAGICAL(SvRV(Other)) \ |
3838 | && (mg = mg_find(SvRV(Other), PERL_MAGIC_qr)) \ | |
0d863452 RH |
3839 | && (other_regex = (regexp *)mg->mg_obj)) |
3840 | ||
3841 | ||
3842 | # define SM_SEEN_THIS(sv) hv_exists_ent(seen_this, \ | |
98f4023c | 3843 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3844 | |
3845 | # define SM_SEEN_OTHER(sv) hv_exists_ent(seen_other, \ | |
98f4023c | 3846 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3847 | |
3848 | tryAMAGICbinSET(smart, 0); | |
3849 | ||
3850 | SP -= 2; /* Pop the values */ | |
3851 | ||
3852 | /* Take care only to invoke mg_get() once for each argument. | |
3853 | * Currently we do this by copying the SV if it's magical. */ | |
3854 | if (d) { | |
3855 | if (SvGMAGICAL(d)) | |
3856 | d = sv_mortalcopy(d); | |
3857 | } | |
3858 | else | |
3859 | d = &PL_sv_undef; | |
3860 | ||
3861 | assert(e); | |
3862 | if (SvGMAGICAL(e)) | |
3863 | e = sv_mortalcopy(e); | |
3864 | ||
3865 | if (SM_CV_NEP) { | |
3866 | I32 c; | |
3867 | ||
10edeb5d | 3868 | if ( SM_OTHER_REF(PVCV) && NOT_EMPTY_PROTO(SvRV(Other)) ) |
0d863452 | 3869 | { |
10edeb5d | 3870 | if (This == SvRV(Other)) |
0d863452 RH |
3871 | RETPUSHYES; |
3872 | else | |
3873 | RETPUSHNO; | |
3874 | } | |
3875 | ||
3876 | ENTER; | |
3877 | SAVETMPS; | |
3878 | PUSHMARK(SP); | |
10edeb5d | 3879 | PUSHs(Other); |
0d863452 | 3880 | PUTBACK; |
10edeb5d | 3881 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
3882 | SPAGAIN; |
3883 | if (c == 0) | |
3884 | PUSHs(&PL_sv_no); | |
3885 | else if (SvTEMP(TOPs)) | |
df528165 | 3886 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
3887 | FREETMPS; |
3888 | LEAVE; | |
3889 | RETURN; | |
3890 | } | |
3891 | else if (SM_REF(PVHV)) { | |
3892 | if (SM_OTHER_REF(PVHV)) { | |
3893 | /* Check that the key-sets are identical */ | |
3894 | HE *he; | |
10edeb5d | 3895 | HV *other_hv = (HV *) SvRV(Other); |
0d863452 RH |
3896 | bool tied = FALSE; |
3897 | bool other_tied = FALSE; | |
3898 | U32 this_key_count = 0, | |
3899 | other_key_count = 0; | |
3900 | ||
3901 | /* Tied hashes don't know how many keys they have. */ | |
10edeb5d | 3902 | if (SvTIED_mg(This, PERL_MAGIC_tied)) { |
0d863452 RH |
3903 | tied = TRUE; |
3904 | } | |
3905 | else if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) { | |
c445ea15 | 3906 | HV * const temp = other_hv; |
10edeb5d JH |
3907 | other_hv = (HV *) This; |
3908 | This = (SV *) temp; | |
0d863452 RH |
3909 | tied = TRUE; |
3910 | } | |
3911 | if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) | |
3912 | other_tied = TRUE; | |
3913 | ||
10edeb5d | 3914 | if (!tied && HvUSEDKEYS((HV *) This) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
3915 | RETPUSHNO; |
3916 | ||
3917 | /* The hashes have the same number of keys, so it suffices | |
3918 | to check that one is a subset of the other. */ | |
10edeb5d JH |
3919 | (void) hv_iterinit((HV *) This); |
3920 | while ( (he = hv_iternext((HV *) This)) ) { | |
0d863452 | 3921 | I32 key_len; |
c445ea15 | 3922 | char * const key = hv_iterkey(he, &key_len); |
0d863452 RH |
3923 | |
3924 | ++ this_key_count; | |
3925 | ||
3926 | if(!hv_exists(other_hv, key, key_len)) { | |
10edeb5d | 3927 | (void) hv_iterinit((HV *) This); /* reset iterator */ |
0d863452 RH |
3928 | RETPUSHNO; |
3929 | } | |
3930 | } | |
3931 | ||
3932 | if (other_tied) { | |
3933 | (void) hv_iterinit(other_hv); | |
3934 | while ( hv_iternext(other_hv) ) | |
3935 | ++other_key_count; | |
3936 | } | |
3937 | else | |
3938 | other_key_count = HvUSEDKEYS(other_hv); | |
3939 | ||
3940 | if (this_key_count != other_key_count) | |
3941 | RETPUSHNO; | |
3942 | else | |
3943 | RETPUSHYES; | |
3944 | } | |
3945 | else if (SM_OTHER_REF(PVAV)) { | |
10edeb5d | 3946 | AV * const other_av = (AV *) SvRV(Other); |
c445ea15 | 3947 | const I32 other_len = av_len(other_av) + 1; |
0d863452 RH |
3948 | I32 i; |
3949 | ||
10edeb5d | 3950 | if (HvUSEDKEYS((HV *) This) != other_len) |
0d863452 RH |
3951 | RETPUSHNO; |
3952 | ||
3953 | for(i = 0; i < other_len; ++i) { | |
c445ea15 | 3954 | SV ** const svp = av_fetch(other_av, i, FALSE); |
0d863452 RH |
3955 | char *key; |
3956 | STRLEN key_len; | |
3957 | ||
3958 | if (!svp) /* ??? When can this happen? */ | |
3959 | RETPUSHNO; | |
3960 | ||
3961 | key = SvPV(*svp, key_len); | |
10edeb5d | 3962 | if(!hv_exists((HV *) This, key, key_len)) |
0d863452 RH |
3963 | RETPUSHNO; |
3964 | } | |
3965 | RETPUSHYES; | |
3966 | } | |
3967 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 3968 | PMOP * const matcher = make_matcher(other_regex); |
0d863452 RH |
3969 | HE *he; |
3970 | ||
10edeb5d JH |
3971 | (void) hv_iterinit((HV *) This); |
3972 | while ( (he = hv_iternext((HV *) This)) ) { | |
0d863452 | 3973 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
10edeb5d | 3974 | (void) hv_iterinit((HV *) This); |
0d863452 RH |
3975 | destroy_matcher(matcher); |
3976 | RETPUSHYES; | |
3977 | } | |
3978 | } | |
3979 | destroy_matcher(matcher); | |
3980 | RETPUSHNO; | |
3981 | } | |
3982 | else { | |
10edeb5d | 3983 | if (hv_exists_ent((HV *) This, Other, 0)) |
0d863452 RH |
3984 | RETPUSHYES; |
3985 | else | |
3986 | RETPUSHNO; | |
3987 | } | |
3988 | } | |
3989 | else if (SM_REF(PVAV)) { | |
3990 | if (SM_OTHER_REF(PVAV)) { | |
10edeb5d JH |
3991 | AV *other_av = (AV *) SvRV(Other); |
3992 | if (av_len((AV *) This) != av_len(other_av)) | |
0d863452 RH |
3993 | RETPUSHNO; |
3994 | else { | |
3995 | I32 i; | |
c445ea15 | 3996 | const I32 other_len = av_len(other_av); |
0d863452 | 3997 | |
a0714e2c | 3998 | if (NULL == seen_this) { |
0d863452 RH |
3999 | seen_this = newHV(); |
4000 | (void) sv_2mortal((SV *) seen_this); | |
4001 | } | |
a0714e2c | 4002 | if (NULL == seen_other) { |
0d863452 RH |
4003 | seen_this = newHV(); |
4004 | (void) sv_2mortal((SV *) seen_other); | |
4005 | } | |
4006 | for(i = 0; i <= other_len; ++i) { | |
10edeb5d | 4007 | SV * const * const this_elem = av_fetch((AV *)This, i, FALSE); |
c445ea15 AL |
4008 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4009 | ||
0d863452 RH |
4010 | if (!this_elem || !other_elem) { |
4011 | if (this_elem || other_elem) | |
4012 | RETPUSHNO; | |
4013 | } | |
4014 | else if (SM_SEEN_THIS(*this_elem) | |
4015 | || SM_SEEN_OTHER(*other_elem)) | |
4016 | { | |
4017 | if (*this_elem != *other_elem) | |
4018 | RETPUSHNO; | |
4019 | } | |
4020 | else { | |
4021 | hv_store_ent(seen_this, | |
98f4023c | 4022 | sv_2mortal(newSViv(PTR2IV(*this_elem))), |
0d863452 RH |
4023 | &PL_sv_undef, 0); |
4024 | hv_store_ent(seen_other, | |
98f4023c | 4025 | sv_2mortal(newSViv(PTR2IV(*other_elem))), |
0d863452 RH |
4026 | &PL_sv_undef, 0); |
4027 | PUSHs(*this_elem); | |
4028 | PUSHs(*other_elem); | |
4029 | ||
4030 | PUTBACK; | |
4031 | (void) do_smartmatch(seen_this, seen_other); | |
4032 | SPAGAIN; | |
4033 | ||
4034 | if (!SvTRUEx(POPs)) | |
4035 | RETPUSHNO; | |
4036 | } | |
4037 | } | |
4038 | RETPUSHYES; | |
4039 | } | |
4040 | } | |
4041 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4042 | PMOP * const matcher = make_matcher(other_regex); |
10edeb5d | 4043 | const I32 this_len = av_len((AV *) This); |
0d863452 | 4044 | I32 i; |
0d863452 RH |
4045 | |
4046 | for(i = 0; i <= this_len; ++i) { | |
10edeb5d | 4047 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); |
0d863452 RH |
4048 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4049 | destroy_matcher(matcher); | |
4050 | RETPUSHYES; | |
4051 | } | |
4052 | } | |
4053 | destroy_matcher(matcher); | |
4054 | RETPUSHNO; | |
4055 | } | |
10edeb5d | 4056 | else if (SvIOK(Other) || SvNOK(Other)) { |
0d863452 RH |
4057 | I32 i; |
4058 | ||
10edeb5d JH |
4059 | for(i = 0; i <= AvFILL((AV *) This); ++i) { |
4060 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); | |
0d863452 RH |
4061 | if (!svp) |
4062 | continue; | |
4063 | ||
10edeb5d | 4064 | PUSHs(Other); |
0d863452 RH |
4065 | PUSHs(*svp); |
4066 | PUTBACK; | |
a98fe34d | 4067 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4068 | (void) pp_i_eq(); |
4069 | else | |
4070 | (void) pp_eq(); | |
4071 | SPAGAIN; | |
4072 | if (SvTRUEx(POPs)) | |
4073 | RETPUSHYES; | |
4074 | } | |
4075 | RETPUSHNO; | |
4076 | } | |
10edeb5d JH |
4077 | else if (SvPOK(Other)) { |
4078 | const I32 this_len = av_len((AV *) This); | |
0d863452 | 4079 | I32 i; |
0d863452 RH |
4080 | |
4081 | for(i = 0; i <= this_len; ++i) { | |
10edeb5d | 4082 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); |
0d863452 RH |
4083 | if (!svp) |
4084 | continue; | |
4085 | ||
10edeb5d | 4086 | PUSHs(Other); |
0d863452 RH |
4087 | PUSHs(*svp); |
4088 | PUTBACK; | |
4089 | (void) pp_seq(); | |
4090 | SPAGAIN; | |
4091 | if (SvTRUEx(POPs)) | |
4092 | RETPUSHYES; | |
4093 | } | |
4094 | RETPUSHNO; | |
4095 | } | |
4096 | } | |
4097 | else if (!SvOK(d) || !SvOK(e)) { | |
4098 | if (!SvOK(d) && !SvOK(e)) | |
4099 | RETPUSHYES; | |
4100 | else | |
4101 | RETPUSHNO; | |
4102 | } | |
4103 | else if (SM_REGEX) { | |
c445ea15 | 4104 | PMOP * const matcher = make_matcher(this_regex); |
0d863452 RH |
4105 | |
4106 | PUTBACK; | |
10edeb5d | 4107 | PUSHs(matcher_matches_sv(matcher, Other) |
0d863452 RH |
4108 | ? &PL_sv_yes |
4109 | : &PL_sv_no); | |
4110 | destroy_matcher(matcher); | |
4111 | RETURN; | |
4112 | } | |
4113 | else if (SM_REF(PVCV)) { | |
4114 | I32 c; | |
4115 | /* This must be a null-prototyped sub, because we | |
4116 | already checked for the other kind. */ | |
4117 | ||
4118 | ENTER; | |
4119 | SAVETMPS; | |
4120 | PUSHMARK(SP); | |
4121 | PUTBACK; | |
10edeb5d | 4122 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
4123 | SPAGAIN; |
4124 | if (c == 0) | |
4125 | PUSHs(&PL_sv_undef); | |
4126 | else if (SvTEMP(TOPs)) | |
df528165 | 4127 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4128 | |
4129 | if (SM_OTHER_REF(PVCV)) { | |
4130 | /* This one has to be null-proto'd too. | |
4131 | Call both of 'em, and compare the results */ | |
4132 | PUSHMARK(SP); | |
10edeb5d | 4133 | c = call_sv(SvRV(Other), G_SCALAR); |
0d863452 RH |
4134 | SPAGAIN; |
4135 | if (c == 0) | |
4136 | PUSHs(&PL_sv_undef); | |
4137 | else if (SvTEMP(TOPs)) | |
df528165 | 4138 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4139 | FREETMPS; |
4140 | LEAVE; | |
4141 | PUTBACK; | |
4142 | return pp_eq(); | |
4143 | } | |
4144 | ||
4145 | FREETMPS; | |
4146 | LEAVE; | |
4147 | RETURN; | |
4148 | } | |
10edeb5d JH |
4149 | else if ( ((SvIOK(d) || SvNOK(d)) && (This = d) && (Other = e)) |
4150 | || ((SvIOK(e) || SvNOK(e)) && (This = e) && (Other = d)) ) | |
0d863452 | 4151 | { |
10edeb5d | 4152 | if (SvPOK(Other) && !looks_like_number(Other)) { |
0d863452 RH |
4153 | /* String comparison */ |
4154 | PUSHs(d); PUSHs(e); | |
4155 | PUTBACK; | |
4156 | return pp_seq(); | |
4157 | } | |
4158 | /* Otherwise, numeric comparison */ | |
4159 | PUSHs(d); PUSHs(e); | |
4160 | PUTBACK; | |
a98fe34d | 4161 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4162 | (void) pp_i_eq(); |
4163 | else | |
4164 | (void) pp_eq(); | |
4165 | SPAGAIN; | |
4166 | if (SvTRUEx(POPs)) | |
4167 | RETPUSHYES; | |
4168 | else | |
4169 | RETPUSHNO; | |
4170 | } | |
4171 | ||
4172 | /* As a last resort, use string comparison */ | |
4173 | PUSHs(d); PUSHs(e); | |
4174 | PUTBACK; | |
4175 | return pp_seq(); | |
4176 | } | |
4177 | ||
4178 | PP(pp_enterwhen) | |
4179 | { | |
4180 | dVAR; dSP; | |
4181 | register PERL_CONTEXT *cx; | |
4182 | const I32 gimme = GIMME_V; | |
4183 | ||
4184 | /* This is essentially an optimization: if the match | |
4185 | fails, we don't want to push a context and then | |
4186 | pop it again right away, so we skip straight | |
4187 | to the op that follows the leavewhen. | |
4188 | */ | |
4189 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4190 | return cLOGOP->op_other->op_next; | |
4191 | ||
4192 | ENTER; | |
4193 | SAVETMPS; | |
4194 | ||
4195 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4196 | PUSHWHEN(cx); | |
4197 | ||
4198 | RETURN; | |
4199 | } | |
4200 | ||
4201 | PP(pp_leavewhen) | |
4202 | { | |
4203 | dVAR; dSP; | |
4204 | register PERL_CONTEXT *cx; | |
4205 | I32 gimme; | |
4206 | SV **newsp; | |
4207 | PMOP *newpm; | |
4208 | ||
4209 | POPBLOCK(cx,newpm); | |
4210 | assert(CxTYPE(cx) == CXt_WHEN); | |
4211 | ||
4212 | SP = newsp; | |
4213 | PUTBACK; | |
4214 | ||
4215 | PL_curpm = newpm; /* pop $1 et al */ | |
4216 | ||
4217 | LEAVE; | |
4218 | return NORMAL; | |
4219 | } | |
4220 | ||
4221 | PP(pp_continue) | |
4222 | { | |
4223 | dVAR; | |
4224 | I32 cxix; | |
4225 | register PERL_CONTEXT *cx; | |
4226 | I32 inner; | |
4227 | ||
4228 | cxix = dopoptowhen(cxstack_ix); | |
4229 | if (cxix < 0) | |
4230 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4231 | if (cxix < cxstack_ix) | |
4232 | dounwind(cxix); | |
4233 | ||
4234 | /* clear off anything above the scope we're re-entering */ | |
4235 | inner = PL_scopestack_ix; | |
4236 | TOPBLOCK(cx); | |
4237 | if (PL_scopestack_ix < inner) | |
4238 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4239 | PL_curcop = cx->blk_oldcop; | |
4240 | return cx->blk_givwhen.leave_op; | |
4241 | } | |
4242 | ||
4243 | PP(pp_break) | |
4244 | { | |
4245 | dVAR; | |
4246 | I32 cxix; | |
4247 | register PERL_CONTEXT *cx; | |
4248 | I32 inner; | |
4249 | ||
4250 | cxix = dopoptogiven(cxstack_ix); | |
4251 | if (cxix < 0) { | |
4252 | if (PL_op->op_flags & OPf_SPECIAL) | |
4253 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4254 | else | |
4255 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4256 | } | |
4257 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4258 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4259 | ||
4260 | if (cxix < cxstack_ix) | |
4261 | dounwind(cxix); | |
4262 | ||
4263 | /* clear off anything above the scope we're re-entering */ | |
4264 | inner = PL_scopestack_ix; | |
4265 | TOPBLOCK(cx); | |
4266 | if (PL_scopestack_ix < inner) | |
4267 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4268 | PL_curcop = cx->blk_oldcop; | |
4269 | ||
4270 | if (CxFOREACH(cx)) | |
022eaa24 | 4271 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 RH |
4272 | else |
4273 | return cx->blk_givwhen.leave_op; | |
4274 | } | |
4275 | ||
a1b95068 | 4276 | STATIC OP * |
cea2e8a9 | 4277 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4278 | { |
4279 | STRLEN len; | |
4280 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4281 | register char * const send = s + len; |
4282 | register char *base = NULL; | |
a0d0e21e | 4283 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4284 | bool noblank = FALSE; |
4285 | bool repeat = FALSE; | |
a0d0e21e | 4286 | bool postspace = FALSE; |
dea28490 JJ |
4287 | U32 *fops; |
4288 | register U32 *fpc; | |
cbbf8932 | 4289 | U32 *linepc = NULL; |
a0d0e21e LW |
4290 | register I32 arg; |
4291 | bool ischop; | |
a1b95068 WL |
4292 | bool unchopnum = FALSE; |
4293 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4294 | |
55497cff | 4295 | if (len == 0) |
cea2e8a9 | 4296 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4297 | |
815f25c6 DM |
4298 | /* estimate the buffer size needed */ |
4299 | for (base = s; s <= send; s++) { | |
a1b95068 | 4300 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4301 | maxops += 10; |
4302 | } | |
4303 | s = base; | |
c445ea15 | 4304 | base = NULL; |
815f25c6 | 4305 | |
a02a5408 | 4306 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4307 | fpc = fops; |
4308 | ||
4309 | if (s < send) { | |
4310 | linepc = fpc; | |
4311 | *fpc++ = FF_LINEMARK; | |
4312 | noblank = repeat = FALSE; | |
4313 | base = s; | |
4314 | } | |
4315 | ||
4316 | while (s <= send) { | |
4317 | switch (*s++) { | |
4318 | default: | |
4319 | skipspaces = 0; | |
4320 | continue; | |
4321 | ||
4322 | case '~': | |
4323 | if (*s == '~') { | |
4324 | repeat = TRUE; | |
4325 | *s = ' '; | |
4326 | } | |
4327 | noblank = TRUE; | |
4328 | s[-1] = ' '; | |
4329 | /* FALL THROUGH */ | |
4330 | case ' ': case '\t': | |
4331 | skipspaces++; | |
4332 | continue; | |
a1b95068 WL |
4333 | case 0: |
4334 | if (s < send) { | |
4335 | skipspaces = 0; | |
4336 | continue; | |
4337 | } /* else FALL THROUGH */ | |
4338 | case '\n': | |
a0d0e21e LW |
4339 | arg = s - base; |
4340 | skipspaces++; | |
4341 | arg -= skipspaces; | |
4342 | if (arg) { | |
5f05dabc | 4343 | if (postspace) |
a0d0e21e | 4344 | *fpc++ = FF_SPACE; |
a0d0e21e | 4345 | *fpc++ = FF_LITERAL; |
eb160463 | 4346 | *fpc++ = (U16)arg; |
a0d0e21e | 4347 | } |
5f05dabc | 4348 | postspace = FALSE; |
a0d0e21e LW |
4349 | if (s <= send) |
4350 | skipspaces--; | |
4351 | if (skipspaces) { | |
4352 | *fpc++ = FF_SKIP; | |
eb160463 | 4353 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4354 | } |
4355 | skipspaces = 0; | |
4356 | if (s <= send) | |
4357 | *fpc++ = FF_NEWLINE; | |
4358 | if (noblank) { | |
4359 | *fpc++ = FF_BLANK; | |
4360 | if (repeat) | |
4361 | arg = fpc - linepc + 1; | |
4362 | else | |
4363 | arg = 0; | |
eb160463 | 4364 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4365 | } |
4366 | if (s < send) { | |
4367 | linepc = fpc; | |
4368 | *fpc++ = FF_LINEMARK; | |
4369 | noblank = repeat = FALSE; | |
4370 | base = s; | |
4371 | } | |
4372 | else | |
4373 | s++; | |
4374 | continue; | |
4375 | ||
4376 | case '@': | |
4377 | case '^': | |
4378 | ischop = s[-1] == '^'; | |
4379 | ||
4380 | if (postspace) { | |
4381 | *fpc++ = FF_SPACE; | |
4382 | postspace = FALSE; | |
4383 | } | |
4384 | arg = (s - base) - 1; | |
4385 | if (arg) { | |
4386 | *fpc++ = FF_LITERAL; | |
eb160463 | 4387 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4388 | } |
4389 | ||
4390 | base = s - 1; | |
4391 | *fpc++ = FF_FETCH; | |
4392 | if (*s == '*') { | |
4393 | s++; | |
a1b95068 WL |
4394 | *fpc++ = 2; /* skip the @* or ^* */ |
4395 | if (ischop) { | |
4396 | *fpc++ = FF_LINESNGL; | |
4397 | *fpc++ = FF_CHOP; | |
4398 | } else | |
4399 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4400 | } |
4401 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4402 | arg = ischop ? 512 : 0; | |
4403 | base = s - 1; | |
4404 | while (*s == '#') | |
4405 | s++; | |
4406 | if (*s == '.') { | |
06b5626a | 4407 | const char * const f = ++s; |
a0d0e21e LW |
4408 | while (*s == '#') |
4409 | s++; | |
4410 | arg |= 256 + (s - f); | |
4411 | } | |
4412 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4413 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4414 | *fpc++ = (U16)arg; |
a1b95068 | 4415 | unchopnum |= ! ischop; |
784707d5 JP |
4416 | } |
4417 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4418 | arg = ischop ? 512 : 0; | |
4419 | base = s - 1; | |
4420 | s++; /* skip the '0' first */ | |
4421 | while (*s == '#') | |
4422 | s++; | |
4423 | if (*s == '.') { | |
06b5626a | 4424 | const char * const f = ++s; |
784707d5 JP |
4425 | while (*s == '#') |
4426 | s++; | |
4427 | arg |= 256 + (s - f); | |
4428 | } | |
4429 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4430 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4431 | *fpc++ = (U16)arg; |
a1b95068 | 4432 | unchopnum |= ! ischop; |
a0d0e21e LW |
4433 | } |
4434 | else { | |
4435 | I32 prespace = 0; | |
4436 | bool ismore = FALSE; | |
4437 | ||
4438 | if (*s == '>') { | |
4439 | while (*++s == '>') ; | |
4440 | prespace = FF_SPACE; | |
4441 | } | |
4442 | else if (*s == '|') { | |
4443 | while (*++s == '|') ; | |
4444 | prespace = FF_HALFSPACE; | |
4445 | postspace = TRUE; | |
4446 | } | |
4447 | else { | |
4448 | if (*s == '<') | |
4449 | while (*++s == '<') ; | |
4450 | postspace = TRUE; | |
4451 | } | |
4452 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4453 | s += 3; | |
4454 | ismore = TRUE; | |
4455 | } | |
4456 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4457 | ||
4458 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4459 | ||
4460 | if (prespace) | |
eb160463 | 4461 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4462 | *fpc++ = FF_ITEM; |
4463 | if (ismore) | |
4464 | *fpc++ = FF_MORE; | |
4465 | if (ischop) | |
4466 | *fpc++ = FF_CHOP; | |
4467 | } | |
4468 | base = s; | |
4469 | skipspaces = 0; | |
4470 | continue; | |
4471 | } | |
4472 | } | |
4473 | *fpc++ = FF_END; | |
4474 | ||
815f25c6 | 4475 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4476 | arg = fpc - fops; |
4477 | { /* need to jump to the next word */ | |
4478 | int z; | |
4479 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4480 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4481 | s = SvPVX(sv) + SvCUR(sv) + z; |
4482 | } | |
dea28490 | 4483 | Copy(fops, s, arg, U32); |
a0d0e21e | 4484 | Safefree(fops); |
c445ea15 | 4485 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4486 | SvCOMPILED_on(sv); |
a1b95068 | 4487 | |
bfed75c6 | 4488 | if (unchopnum && repeat) |
a1b95068 WL |
4489 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4490 | return 0; | |
4491 | } | |
4492 | ||
4493 | ||
4494 | STATIC bool | |
4495 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4496 | { | |
4497 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4498 | NV pwr = 1; | |
4499 | NV eps = 0.5; | |
4500 | bool res = FALSE; | |
4501 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4502 | ||
4503 | if (frcsize & 256) | |
4504 | intsize--; | |
4505 | frcsize &= 255; | |
4506 | intsize -= frcsize; | |
4507 | ||
4508 | while (intsize--) pwr *= 10.0; | |
4509 | while (frcsize--) eps /= 10.0; | |
4510 | ||
4511 | if( value >= 0 ){ | |
4512 | if (value + eps >= pwr) | |
4513 | res = TRUE; | |
4514 | } else { | |
4515 | if (value - eps <= -pwr) | |
4516 | res = TRUE; | |
4517 | } | |
4518 | return res; | |
a0d0e21e | 4519 | } |
4e35701f | 4520 | |
bbed91b5 | 4521 | static I32 |
0bd48802 | 4522 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4523 | { |
27da23d5 | 4524 | dVAR; |
0bd48802 | 4525 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4526 | const int filter_has_file = IoLINES(datasv); |
0bd48802 AL |
4527 | SV * const filter_state = (SV *)IoTOP_GV(datasv); |
4528 | SV * const filter_sub = (SV *)IoBOTTOM_GV(datasv); | |
941a98a0 | 4529 | int status = 0; |
ec0b63d7 | 4530 | SV *upstream; |
941a98a0 | 4531 | STRLEN got_len; |
95b63a38 | 4532 | const char *got_p = NULL; |
941a98a0 | 4533 | const char *prune_from = NULL; |
34113e50 | 4534 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4535 | STRLEN umaxlen; |
4536 | ||
4537 | assert(maxlen >= 0); | |
4538 | umaxlen = maxlen; | |
5675696b | 4539 | |
bbed91b5 KF |
4540 | /* I was having segfault trouble under Linux 2.2.5 after a |
4541 | parse error occured. (Had to hack around it with a test | |
4542 | for PL_error_count == 0.) Solaris doesn't segfault -- | |
4543 | not sure where the trouble is yet. XXX */ | |
4544 | ||
941a98a0 | 4545 | if (IoFMT_GV(datasv)) { |
937b367d NC |
4546 | SV *const cache = (SV *)IoFMT_GV(datasv); |
4547 | if (SvOK(cache)) { | |
4548 | STRLEN cache_len; | |
4549 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4550 | STRLEN take = 0; |
4551 | ||
bb7a0f54 | 4552 | if (umaxlen) { |
941a98a0 NC |
4553 | /* Running in block mode and we have some cached data already. |
4554 | */ | |
bb7a0f54 | 4555 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4556 | /* In fact, so much data we don't even need to call |
4557 | filter_read. */ | |
bb7a0f54 | 4558 | take = umaxlen; |
941a98a0 NC |
4559 | } |
4560 | } else { | |
10edeb5d JH |
4561 | const char *const first_nl = |
4562 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
4563 | if (first_nl) { |
4564 | take = first_nl + 1 - cache_p; | |
4565 | } | |
4566 | } | |
4567 | if (take) { | |
4568 | sv_catpvn(buf_sv, cache_p, take); | |
4569 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4570 | /* Definately not EOF */ |
4571 | return 1; | |
4572 | } | |
941a98a0 | 4573 | |
937b367d | 4574 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4575 | if (umaxlen) { |
4576 | umaxlen -= cache_len; | |
941a98a0 | 4577 | } |
937b367d | 4578 | SvOK_off(cache); |
34113e50 | 4579 | read_from_cache = TRUE; |
937b367d NC |
4580 | } |
4581 | } | |
ec0b63d7 | 4582 | |
34113e50 NC |
4583 | /* Filter API says that the filter appends to the contents of the buffer. |
4584 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4585 | then clearly what it contains is already filtered by this filter, so we | |
4586 | don't want to pass it in a second time. | |
4587 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4588 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4589 | ? sv_newmortal() : buf_sv; | |
4590 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4591 | |
bbed91b5 | 4592 | if (filter_has_file) { |
67e70b33 | 4593 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4594 | } |
4595 | ||
34113e50 | 4596 | if (filter_sub && status >= 0) { |
39644a26 | 4597 | dSP; |
bbed91b5 KF |
4598 | int count; |
4599 | ||
4600 | ENTER; | |
4601 | SAVE_DEFSV; | |
4602 | SAVETMPS; | |
4603 | EXTEND(SP, 2); | |
4604 | ||
5675696b | 4605 | DEFSV = upstream; |
bbed91b5 | 4606 | PUSHMARK(SP); |
67e70b33 | 4607 | PUSHs(sv_2mortal(newSViv(0))); |
bbed91b5 KF |
4608 | if (filter_state) { |
4609 | PUSHs(filter_state); | |
4610 | } | |
4611 | PUTBACK; | |
4612 | count = call_sv(filter_sub, G_SCALAR); | |
4613 | SPAGAIN; | |
4614 | ||
4615 | if (count > 0) { | |
4616 | SV *out = POPs; | |
4617 | if (SvOK(out)) { | |
941a98a0 | 4618 | status = SvIV(out); |
bbed91b5 KF |
4619 | } |
4620 | } | |
4621 | ||
4622 | PUTBACK; | |
4623 | FREETMPS; | |
4624 | LEAVE; | |
4625 | } | |
4626 | ||
941a98a0 NC |
4627 | if(SvOK(upstream)) { |
4628 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4629 | if (umaxlen) { |
4630 | if (got_len > umaxlen) { | |
4631 | prune_from = got_p + umaxlen; | |
937b367d | 4632 | } |
941a98a0 | 4633 | } else { |
10edeb5d JH |
4634 | const char *const first_nl = |
4635 | (const char *)memchr(got_p, '\n', got_len); | |
941a98a0 NC |
4636 | if (first_nl && first_nl + 1 < got_p + got_len) { |
4637 | /* There's a second line here... */ | |
4638 | prune_from = first_nl + 1; | |
937b367d | 4639 | } |
937b367d NC |
4640 | } |
4641 | } | |
941a98a0 NC |
4642 | if (prune_from) { |
4643 | /* Oh. Too long. Stuff some in our cache. */ | |
4644 | STRLEN cached_len = got_p + got_len - prune_from; | |
4645 | SV *cache = (SV *)IoFMT_GV(datasv); | |
4646 | ||
4647 | if (!cache) { | |
bb7a0f54 | 4648 | IoFMT_GV(datasv) = (GV*) (cache = newSV(got_len - umaxlen)); |
941a98a0 NC |
4649 | } else if (SvOK(cache)) { |
4650 | /* Cache should be empty. */ | |
4651 | assert(!SvCUR(cache)); | |
4652 | } | |
4653 | ||
4654 | sv_setpvn(cache, prune_from, cached_len); | |
4655 | /* If you ask for block mode, you may well split UTF-8 characters. | |
4656 | "If it breaks, you get to keep both parts" | |
4657 | (Your code is broken if you don't put them back together again | |
4658 | before something notices.) */ | |
4659 | if (SvUTF8(upstream)) { | |
4660 | SvUTF8_on(cache); | |
4661 | } | |
4662 | SvCUR_set(upstream, got_len - cached_len); | |
4663 | /* Can't yet be EOF */ | |
4664 | if (status == 0) | |
4665 | status = 1; | |
4666 | } | |
937b367d | 4667 | |
34113e50 NC |
4668 | /* If they are at EOF but buf_sv has something in it, then they may never |
4669 | have touched the SV upstream, so it may be undefined. If we naively | |
4670 | concatenate it then we get a warning about use of uninitialised value. | |
4671 | */ | |
4672 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
4673 | sv_catsv(buf_sv, upstream); |
4674 | } | |
4675 | ||
941a98a0 | 4676 | if (status <= 0) { |
bbed91b5 | 4677 | IoLINES(datasv) = 0; |
937b367d | 4678 | SvREFCNT_dec(IoFMT_GV(datasv)); |
bbed91b5 KF |
4679 | if (filter_state) { |
4680 | SvREFCNT_dec(filter_state); | |
a0714e2c | 4681 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
4682 | } |
4683 | if (filter_sub) { | |
4684 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 4685 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 4686 | } |
0bd48802 | 4687 | filter_del(S_run_user_filter); |
bbed91b5 | 4688 | } |
34113e50 NC |
4689 | if (status == 0 && read_from_cache) { |
4690 | /* If we read some data from the cache (and by getting here it implies | |
4691 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
4692 | report that to our caller. */ | |
4693 | return 1; | |
4694 | } | |
941a98a0 | 4695 | return status; |
bbed91b5 | 4696 | } |
84d4ea48 | 4697 | |
be4b629d CN |
4698 | /* perhaps someone can come up with a better name for |
4699 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 4700 | static bool |
5f66b61c | 4701 | S_path_is_absolute(const char *name) |
be4b629d CN |
4702 | { |
4703 | if (PERL_FILE_IS_ABSOLUTE(name) | |
4704 | #ifdef MACOS_TRADITIONAL | |
0bd48802 | 4705 | || (*name == ':') |
be4b629d CN |
4706 | #else |
4707 | || (*name == '.' && (name[1] == '/' || | |
0bd48802 | 4708 | (name[1] == '.' && name[2] == '/'))) |
be4b629d | 4709 | #endif |
0bd48802 | 4710 | ) |
be4b629d CN |
4711 | { |
4712 | return TRUE; | |
4713 | } | |
4714 | else | |
4715 | return FALSE; | |
4716 | } | |
241d1a3b NC |
4717 | |
4718 | /* | |
4719 | * Local variables: | |
4720 | * c-indentation-style: bsd | |
4721 | * c-basic-offset: 4 | |
4722 | * indent-tabs-mode: t | |
4723 | * End: | |
4724 | * | |
37442d52 RGS |
4725 | * ex: set ts=8 sts=4 sw=4 noet: |
4726 | */ |