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 | { |
d8f6592e AL |
134 | if (re) { |
135 | ReREFCNT_dec(re); | |
4608196e | 136 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
c277df42 | 137 | } |
533c011a | 138 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 139 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 140 | |
c277df42 | 141 | pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */ |
84e09d5e JH |
142 | if (DO_UTF8(tmpstr)) |
143 | pm->op_pmdynflags |= PMdf_DYN_UTF8; | |
144 | else { | |
145 | pm->op_pmdynflags &= ~PMdf_DYN_UTF8; | |
146 | if (pm->op_pmdynflags & PMdf_UTF8) | |
147 | t = (char*)bytes_to_utf8((U8*)t, &len); | |
148 | } | |
e62f0680 | 149 | PM_SETRE(pm, CALLREGCOMP(aTHX_ (char *)t, (char *)t + len, pm)); |
84e09d5e JH |
150 | if (!DO_UTF8(tmpstr) && (pm->op_pmdynflags & PMdf_UTF8)) |
151 | Safefree(t); | |
f86aaa29 | 152 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 153 | inside tie/overload accessors. */ |
c277df42 | 154 | } |
4633a7c4 | 155 | } |
a0d0e21e | 156 | |
72311751 | 157 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
158 | if (PL_tainting) { |
159 | if (PL_tainted) | |
72311751 GS |
160 | pm->op_pmdynflags |= PMdf_TAINTED; |
161 | else | |
162 | pm->op_pmdynflags &= ~PMdf_TAINTED; | |
163 | } | |
164 | #endif | |
165 | ||
aaa362c4 | 166 | if (!PM_GETRE(pm)->prelen && PL_curpm) |
3280af22 | 167 | pm = PL_curpm; |
17cbf7cc AMS |
168 | else if (strEQ("\\s+", PM_GETRE(pm)->precomp)) |
169 | pm->op_pmflags |= PMf_WHITE; | |
16bdb4ac | 170 | else |
17cbf7cc | 171 | pm->op_pmflags &= ~PMf_WHITE; |
a0d0e21e | 172 | |
2360cd68 | 173 | /* XXX runtime compiled output needs to move to the pad */ |
a0d0e21e | 174 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 175 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
3db8f154 | 176 | #if !defined(USE_ITHREADS) |
2360cd68 | 177 | /* XXX can't change the optree at runtime either */ |
533c011a | 178 | cLOGOP->op_first->op_next = PL_op->op_next; |
2360cd68 | 179 | #endif |
a0d0e21e LW |
180 | } |
181 | RETURN; | |
182 | } | |
183 | ||
184 | PP(pp_substcont) | |
185 | { | |
97aff369 | 186 | dVAR; |
39644a26 | 187 | dSP; |
c09156bb | 188 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
189 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
190 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
191 | register char *s = cx->sb_s; |
192 | register char *m = cx->sb_m; | |
193 | char *orig = cx->sb_orig; | |
901017d6 | 194 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 195 | SV *nsv = NULL; |
988e6e7e AE |
196 | REGEXP *old = PM_GETRE(pm); |
197 | if(old != rx) { | |
bfed75c6 | 198 | if(old) |
988e6e7e | 199 | ReREFCNT_dec(old); |
d8f2cf8a | 200 | PM_SETRE(pm,rx); |
d8f2cf8a AB |
201 | } |
202 | ||
d9f97599 | 203 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 204 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 205 | |
a0d0e21e | 206 | if (cx->sb_iters++) { |
a3b680e6 | 207 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 208 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 209 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 210 | |
48c036b1 GS |
211 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
212 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 213 | sv_catsv(dstr, POPs); |
8ff629d9 | 214 | FREETMPS; /* Prevent excess tmp stack */ |
a0d0e21e LW |
215 | |
216 | /* Are we done */ | |
cea2e8a9 | 217 | if (cx->sb_once || !CALLREGEXEC(aTHX_ rx, s, cx->sb_strend, orig, |
9661b544 | 218 | s == m, cx->sb_targ, NULL, |
22e551b9 | 219 | ((cx->sb_rflags & REXEC_COPY_STR) |
cf93c79d IZ |
220 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) |
221 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 222 | { |
823a54a3 | 223 | SV * const targ = cx->sb_targ; |
748a9306 | 224 | |
078c425b JH |
225 | assert(cx->sb_strend >= s); |
226 | if(cx->sb_strend > s) { | |
227 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
228 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
229 | else | |
230 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
231 | } | |
48c036b1 | 232 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 233 | |
f8c7b90f | 234 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
235 | if (SvIsCOW(targ)) { |
236 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
237 | } else | |
238 | #endif | |
239 | { | |
8bd4d4c5 | 240 | SvPV_free(targ); |
ed252734 | 241 | } |
f880fe2f | 242 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
243 | SvCUR_set(targ, SvCUR(dstr)); |
244 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
245 | if (DO_UTF8(dstr)) |
246 | SvUTF8_on(targ); | |
6136c704 | 247 | SvPV_set(dstr, NULL); |
748a9306 | 248 | sv_free(dstr); |
48c036b1 GS |
249 | |
250 | TAINT_IF(cx->sb_rxtainted & 1); | |
22e13caa | 251 | PUSHs(sv_2mortal(newSViv(saviters - 1))); |
48c036b1 | 252 | |
ffc61ed2 | 253 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 254 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 255 | SvSETMAGIC(targ); |
9212bbba | 256 | SvTAINT(targ); |
5cd24f17 | 257 | |
4633a7c4 | 258 | LEAVE_SCOPE(cx->sb_oldsave); |
d8f2cf8a | 259 | ReREFCNT_dec(rx); |
a0d0e21e LW |
260 | POPSUBST(cx); |
261 | RETURNOP(pm->op_next); | |
262 | } | |
8e5e9ebe | 263 | cx->sb_iters = saviters; |
a0d0e21e | 264 | } |
cf93c79d | 265 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
266 | m = s; |
267 | s = orig; | |
cf93c79d | 268 | cx->sb_orig = orig = rx->subbeg; |
a0d0e21e LW |
269 | s = orig + (m - s); |
270 | cx->sb_strend = s + (cx->sb_strend - m); | |
271 | } | |
cf93c79d | 272 | cx->sb_m = m = rx->startp[0] + orig; |
db79b45b | 273 | if (m > s) { |
bfed75c6 | 274 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
275 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
276 | else | |
277 | sv_catpvn(dstr, s, m-s); | |
278 | } | |
cf93c79d | 279 | cx->sb_s = rx->endp[0] + orig; |
084916e3 | 280 | { /* Update the pos() information. */ |
44f8325f | 281 | SV * const sv = cx->sb_targ; |
084916e3 JH |
282 | MAGIC *mg; |
283 | I32 i; | |
284 | if (SvTYPE(sv) < SVt_PVMG) | |
862a34c6 | 285 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 286 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 NC |
287 | #ifdef PERL_OLD_COPY_ON_WRITE |
288 | if (SvIsCOW(lsv)) | |
289 | sv_force_normal_flags(sv, 0); | |
290 | #endif | |
291 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
292 | NULL, 0); | |
084916e3 JH |
293 | } |
294 | i = m - orig; | |
295 | if (DO_UTF8(sv)) | |
296 | sv_pos_b2u(sv, &i); | |
297 | mg->mg_len = i; | |
298 | } | |
988e6e7e | 299 | if (old != rx) |
454f1e26 | 300 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
301 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
302 | rxres_save(&cx->sb_rxres, rx); | |
a0d0e21e LW |
303 | RETURNOP(pm->op_pmreplstart); |
304 | } | |
305 | ||
c90c0ff4 | 306 | void |
864dbfa3 | 307 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 308 | { |
309 | UV *p = (UV*)*rsp; | |
310 | U32 i; | |
96a5add6 | 311 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 312 | |
d9f97599 | 313 | if (!p || p[1] < rx->nparens) { |
f8c7b90f | 314 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
315 | i = 7 + rx->nparens * 2; |
316 | #else | |
d9f97599 | 317 | i = 6 + rx->nparens * 2; |
ed252734 | 318 | #endif |
c90c0ff4 | 319 | if (!p) |
a02a5408 | 320 | Newx(p, i, UV); |
c90c0ff4 | 321 | else |
322 | Renew(p, i, UV); | |
323 | *rsp = (void*)p; | |
324 | } | |
325 | ||
c445ea15 | 326 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? rx->subbeg : NULL); |
cf93c79d | 327 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 328 | |
f8c7b90f | 329 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 | 330 | *p++ = PTR2UV(rx->saved_copy); |
c445ea15 | 331 | rx->saved_copy = NULL; |
ed252734 NC |
332 | #endif |
333 | ||
d9f97599 | 334 | *p++ = rx->nparens; |
c90c0ff4 | 335 | |
56431972 | 336 | *p++ = PTR2UV(rx->subbeg); |
cf93c79d | 337 | *p++ = (UV)rx->sublen; |
d9f97599 GS |
338 | for (i = 0; i <= rx->nparens; ++i) { |
339 | *p++ = (UV)rx->startp[i]; | |
340 | *p++ = (UV)rx->endp[i]; | |
c90c0ff4 | 341 | } |
342 | } | |
343 | ||
344 | void | |
864dbfa3 | 345 | Perl_rxres_restore(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 346 | { |
347 | UV *p = (UV*)*rsp; | |
348 | U32 i; | |
96a5add6 | 349 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 350 | |
ed252734 | 351 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 352 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 353 | *p++ = 0; |
354 | ||
f8c7b90f | 355 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
356 | if (rx->saved_copy) |
357 | SvREFCNT_dec (rx->saved_copy); | |
358 | rx->saved_copy = INT2PTR(SV*,*p); | |
359 | *p++ = 0; | |
360 | #endif | |
361 | ||
d9f97599 | 362 | rx->nparens = *p++; |
c90c0ff4 | 363 | |
56431972 | 364 | rx->subbeg = INT2PTR(char*,*p++); |
cf93c79d | 365 | rx->sublen = (I32)(*p++); |
d9f97599 | 366 | for (i = 0; i <= rx->nparens; ++i) { |
cf93c79d IZ |
367 | rx->startp[i] = (I32)(*p++); |
368 | rx->endp[i] = (I32)(*p++); | |
c90c0ff4 | 369 | } |
370 | } | |
371 | ||
372 | void | |
864dbfa3 | 373 | Perl_rxres_free(pTHX_ void **rsp) |
c90c0ff4 | 374 | { |
44f8325f | 375 | UV * const p = (UV*)*rsp; |
96a5add6 | 376 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 377 | |
378 | if (p) { | |
94010e71 NC |
379 | #ifdef PERL_POISON |
380 | void *tmp = INT2PTR(char*,*p); | |
381 | Safefree(tmp); | |
382 | if (*p) | |
7e337ee0 | 383 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 384 | #else |
56431972 | 385 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 386 | #endif |
f8c7b90f | 387 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
388 | if (p[1]) { |
389 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
390 | } | |
391 | #endif | |
c90c0ff4 | 392 | Safefree(p); |
4608196e | 393 | *rsp = NULL; |
c90c0ff4 | 394 | } |
395 | } | |
396 | ||
a0d0e21e LW |
397 | PP(pp_formline) |
398 | { | |
97aff369 | 399 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 400 | register SV * const tmpForm = *++MARK; |
dea28490 | 401 | register U32 *fpc; |
a0d0e21e | 402 | register char *t; |
245d4a47 | 403 | const char *f; |
a0d0e21e | 404 | register I32 arg; |
c445ea15 AL |
405 | register SV *sv = NULL; |
406 | const char *item = NULL; | |
9c5ffd7c JH |
407 | I32 itemsize = 0; |
408 | I32 fieldsize = 0; | |
a0d0e21e | 409 | I32 lines = 0; |
c445ea15 AL |
410 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
411 | const char *chophere = NULL; | |
412 | char *linemark = NULL; | |
65202027 | 413 | NV value; |
9c5ffd7c | 414 | bool gotsome = FALSE; |
a0d0e21e | 415 | STRLEN len; |
823a54a3 | 416 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 417 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
418 | bool item_is_utf8 = FALSE; |
419 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 420 | SV * nsv = NULL; |
cbbf8932 | 421 | OP * parseres = NULL; |
bfed75c6 | 422 | const char *fmt; |
a1b95068 | 423 | bool oneline; |
a0d0e21e | 424 | |
76e3520e | 425 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
426 | if (SvREADONLY(tmpForm)) { |
427 | SvREADONLY_off(tmpForm); | |
a1b95068 | 428 | parseres = doparseform(tmpForm); |
445b3f51 GS |
429 | SvREADONLY_on(tmpForm); |
430 | } | |
431 | else | |
a1b95068 WL |
432 | parseres = doparseform(tmpForm); |
433 | if (parseres) | |
434 | return parseres; | |
a0d0e21e | 435 | } |
3280af22 | 436 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
437 | if (DO_UTF8(PL_formtarget)) |
438 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 439 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 440 | t += len; |
245d4a47 | 441 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 442 | /* need to jump to the next word */ |
245d4a47 | 443 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
444 | |
445 | for (;;) { | |
446 | DEBUG_f( { | |
bfed75c6 | 447 | const char *name = "???"; |
a0d0e21e LW |
448 | arg = -1; |
449 | switch (*fpc) { | |
450 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
451 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
452 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
453 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
454 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
455 | ||
456 | case FF_CHECKNL: name = "CHECKNL"; break; | |
457 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
458 | case FF_SPACE: name = "SPACE"; break; | |
459 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
460 | case FF_ITEM: name = "ITEM"; break; | |
461 | case FF_CHOP: name = "CHOP"; break; | |
462 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
463 | case FF_NEWLINE: name = "NEWLINE"; break; | |
464 | case FF_MORE: name = "MORE"; break; | |
465 | case FF_LINEMARK: name = "LINEMARK"; break; | |
466 | case FF_END: name = "END"; break; | |
bfed75c6 | 467 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 468 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
469 | } |
470 | if (arg >= 0) | |
bf49b057 | 471 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 472 | else |
bf49b057 | 473 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 474 | } ); |
a0d0e21e LW |
475 | switch (*fpc++) { |
476 | case FF_LINEMARK: | |
477 | linemark = t; | |
a0d0e21e LW |
478 | lines++; |
479 | gotsome = FALSE; | |
480 | break; | |
481 | ||
482 | case FF_LITERAL: | |
483 | arg = *fpc++; | |
1bd51a4c | 484 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 485 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
486 | *t = '\0'; |
487 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
488 | t = SvEND(PL_formtarget); | |
1bd51a4c IH |
489 | break; |
490 | } | |
491 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 492 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
493 | *t = '\0'; |
494 | sv_utf8_upgrade(PL_formtarget); | |
495 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
496 | t = SvEND(PL_formtarget); | |
497 | targ_is_utf8 = TRUE; | |
498 | } | |
a0d0e21e LW |
499 | while (arg--) |
500 | *t++ = *f++; | |
501 | break; | |
502 | ||
503 | case FF_SKIP: | |
504 | f += *fpc++; | |
505 | break; | |
506 | ||
507 | case FF_FETCH: | |
508 | arg = *fpc++; | |
509 | f += arg; | |
510 | fieldsize = arg; | |
511 | ||
512 | if (MARK < SP) | |
513 | sv = *++MARK; | |
514 | else { | |
3280af22 | 515 | sv = &PL_sv_no; |
599cee73 | 516 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 517 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
518 | } |
519 | break; | |
520 | ||
521 | case FF_CHECKNL: | |
5a34cab7 NC |
522 | { |
523 | const char *send; | |
524 | const char *s = item = SvPV_const(sv, len); | |
525 | itemsize = len; | |
526 | if (DO_UTF8(sv)) { | |
527 | itemsize = sv_len_utf8(sv); | |
528 | if (itemsize != (I32)len) { | |
529 | I32 itembytes; | |
530 | if (itemsize > fieldsize) { | |
531 | itemsize = fieldsize; | |
532 | itembytes = itemsize; | |
533 | sv_pos_u2b(sv, &itembytes, 0); | |
534 | } | |
535 | else | |
536 | itembytes = len; | |
537 | send = chophere = s + itembytes; | |
538 | while (s < send) { | |
539 | if (*s & ~31) | |
540 | gotsome = TRUE; | |
541 | else if (*s == '\n') | |
542 | break; | |
543 | s++; | |
544 | } | |
545 | item_is_utf8 = TRUE; | |
546 | itemsize = s - item; | |
547 | sv_pos_b2u(sv, &itemsize); | |
548 | break; | |
a0ed51b3 | 549 | } |
a0ed51b3 | 550 | } |
5a34cab7 NC |
551 | item_is_utf8 = FALSE; |
552 | if (itemsize > fieldsize) | |
553 | itemsize = fieldsize; | |
554 | send = chophere = s + itemsize; | |
555 | while (s < send) { | |
556 | if (*s & ~31) | |
557 | gotsome = TRUE; | |
558 | else if (*s == '\n') | |
559 | break; | |
560 | s++; | |
561 | } | |
562 | itemsize = s - item; | |
563 | break; | |
a0ed51b3 | 564 | } |
a0d0e21e LW |
565 | |
566 | case FF_CHECKCHOP: | |
5a34cab7 NC |
567 | { |
568 | const char *s = item = SvPV_const(sv, len); | |
569 | itemsize = len; | |
570 | if (DO_UTF8(sv)) { | |
571 | itemsize = sv_len_utf8(sv); | |
572 | if (itemsize != (I32)len) { | |
573 | I32 itembytes; | |
574 | if (itemsize <= fieldsize) { | |
575 | const char *send = chophere = s + itemsize; | |
576 | while (s < send) { | |
577 | if (*s == '\r') { | |
578 | itemsize = s - item; | |
a0ed51b3 | 579 | chophere = s; |
a0ed51b3 | 580 | break; |
5a34cab7 NC |
581 | } |
582 | if (*s++ & ~31) | |
a0ed51b3 | 583 | gotsome = TRUE; |
a0ed51b3 | 584 | } |
a0ed51b3 | 585 | } |
5a34cab7 NC |
586 | else { |
587 | const char *send; | |
588 | itemsize = fieldsize; | |
589 | itembytes = itemsize; | |
590 | sv_pos_u2b(sv, &itembytes, 0); | |
591 | send = chophere = s + itembytes; | |
592 | while (s < send || (s == send && isSPACE(*s))) { | |
593 | if (isSPACE(*s)) { | |
594 | if (chopspace) | |
595 | chophere = s; | |
596 | if (*s == '\r') | |
597 | break; | |
598 | } | |
599 | else { | |
600 | if (*s & ~31) | |
601 | gotsome = TRUE; | |
602 | if (strchr(PL_chopset, *s)) | |
603 | chophere = s + 1; | |
604 | } | |
605 | s++; | |
606 | } | |
607 | itemsize = chophere - item; | |
608 | sv_pos_b2u(sv, &itemsize); | |
609 | } | |
610 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
611 | break; |
612 | } | |
a0d0e21e | 613 | } |
5a34cab7 NC |
614 | item_is_utf8 = FALSE; |
615 | if (itemsize <= fieldsize) { | |
616 | const char *const send = chophere = s + itemsize; | |
617 | while (s < send) { | |
618 | if (*s == '\r') { | |
619 | itemsize = s - item; | |
a0d0e21e | 620 | chophere = s; |
a0d0e21e | 621 | break; |
5a34cab7 NC |
622 | } |
623 | if (*s++ & ~31) | |
a0d0e21e | 624 | gotsome = TRUE; |
a0d0e21e | 625 | } |
a0d0e21e | 626 | } |
5a34cab7 NC |
627 | else { |
628 | const char *send; | |
629 | itemsize = fieldsize; | |
630 | send = chophere = s + itemsize; | |
631 | while (s < send || (s == send && isSPACE(*s))) { | |
632 | if (isSPACE(*s)) { | |
633 | if (chopspace) | |
634 | chophere = s; | |
635 | if (*s == '\r') | |
636 | break; | |
637 | } | |
638 | else { | |
639 | if (*s & ~31) | |
640 | gotsome = TRUE; | |
641 | if (strchr(PL_chopset, *s)) | |
642 | chophere = s + 1; | |
643 | } | |
644 | s++; | |
645 | } | |
646 | itemsize = chophere - item; | |
647 | } | |
648 | break; | |
a0d0e21e | 649 | } |
a0d0e21e LW |
650 | |
651 | case FF_SPACE: | |
652 | arg = fieldsize - itemsize; | |
653 | if (arg) { | |
654 | fieldsize -= arg; | |
655 | while (arg-- > 0) | |
656 | *t++ = ' '; | |
657 | } | |
658 | break; | |
659 | ||
660 | case FF_HALFSPACE: | |
661 | arg = fieldsize - itemsize; | |
662 | if (arg) { | |
663 | arg /= 2; | |
664 | fieldsize -= arg; | |
665 | while (arg-- > 0) | |
666 | *t++ = ' '; | |
667 | } | |
668 | break; | |
669 | ||
670 | case FF_ITEM: | |
5a34cab7 NC |
671 | { |
672 | const char *s = item; | |
673 | arg = itemsize; | |
674 | if (item_is_utf8) { | |
675 | if (!targ_is_utf8) { | |
676 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
677 | *t = '\0'; | |
678 | sv_utf8_upgrade(PL_formtarget); | |
679 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
680 | t = SvEND(PL_formtarget); | |
681 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 682 | } |
5a34cab7 NC |
683 | while (arg--) { |
684 | if (UTF8_IS_CONTINUED(*s)) { | |
685 | STRLEN skip = UTF8SKIP(s); | |
686 | switch (skip) { | |
687 | default: | |
688 | Move(s,t,skip,char); | |
689 | s += skip; | |
690 | t += skip; | |
691 | break; | |
692 | case 7: *t++ = *s++; | |
693 | case 6: *t++ = *s++; | |
694 | case 5: *t++ = *s++; | |
695 | case 4: *t++ = *s++; | |
696 | case 3: *t++ = *s++; | |
697 | case 2: *t++ = *s++; | |
698 | case 1: *t++ = *s++; | |
699 | } | |
700 | } | |
701 | else { | |
702 | if ( !((*t++ = *s++) & ~31) ) | |
703 | t[-1] = ' '; | |
704 | } | |
a0ed51b3 | 705 | } |
5a34cab7 | 706 | break; |
a0ed51b3 | 707 | } |
5a34cab7 NC |
708 | if (targ_is_utf8 && !item_is_utf8) { |
709 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
710 | *t = '\0'; | |
711 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
712 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 713 | #ifdef EBCDIC |
901017d6 | 714 | const int ch = *t; |
5a34cab7 | 715 | if (iscntrl(ch)) |
78da4d13 | 716 | #else |
5a34cab7 | 717 | if (!(*t & ~31)) |
78da4d13 | 718 | #endif |
5a34cab7 NC |
719 | *t = ' '; |
720 | } | |
721 | break; | |
78da4d13 | 722 | } |
5a34cab7 | 723 | while (arg--) { |
9d116dd7 | 724 | #ifdef EBCDIC |
901017d6 | 725 | const int ch = *t++ = *s++; |
5a34cab7 | 726 | if (iscntrl(ch)) |
a0d0e21e | 727 | #else |
5a34cab7 | 728 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 729 | #endif |
5a34cab7 NC |
730 | t[-1] = ' '; |
731 | } | |
732 | break; | |
a0d0e21e | 733 | } |
a0d0e21e LW |
734 | |
735 | case FF_CHOP: | |
5a34cab7 NC |
736 | { |
737 | const char *s = chophere; | |
738 | if (chopspace) { | |
af68e756 | 739 | while (isSPACE(*s)) |
5a34cab7 NC |
740 | s++; |
741 | } | |
742 | sv_chop(sv,s); | |
743 | SvSETMAGIC(sv); | |
744 | break; | |
a0d0e21e | 745 | } |
a0d0e21e | 746 | |
a1b95068 WL |
747 | case FF_LINESNGL: |
748 | chopspace = 0; | |
749 | oneline = TRUE; | |
750 | goto ff_line; | |
a0d0e21e | 751 | case FF_LINEGLOB: |
a1b95068 WL |
752 | oneline = FALSE; |
753 | ff_line: | |
5a34cab7 NC |
754 | { |
755 | const char *s = item = SvPV_const(sv, len); | |
756 | itemsize = len; | |
757 | if ((item_is_utf8 = DO_UTF8(sv))) | |
758 | itemsize = sv_len_utf8(sv); | |
759 | if (itemsize) { | |
760 | bool chopped = FALSE; | |
761 | const char *const send = s + len; | |
762 | gotsome = TRUE; | |
763 | chophere = s + itemsize; | |
764 | while (s < send) { | |
765 | if (*s++ == '\n') { | |
766 | if (oneline) { | |
767 | chopped = TRUE; | |
768 | chophere = s; | |
769 | break; | |
770 | } else { | |
771 | if (s == send) { | |
772 | itemsize--; | |
773 | chopped = TRUE; | |
774 | } else | |
775 | lines++; | |
776 | } | |
1bd51a4c | 777 | } |
a0d0e21e | 778 | } |
5a34cab7 NC |
779 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
780 | if (targ_is_utf8) | |
781 | SvUTF8_on(PL_formtarget); | |
782 | if (oneline) { | |
783 | SvCUR_set(sv, chophere - item); | |
784 | sv_catsv(PL_formtarget, sv); | |
785 | SvCUR_set(sv, itemsize); | |
786 | } else | |
787 | sv_catsv(PL_formtarget, sv); | |
788 | if (chopped) | |
789 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1); | |
790 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
791 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); | |
792 | if (item_is_utf8) | |
793 | targ_is_utf8 = TRUE; | |
a0d0e21e | 794 | } |
5a34cab7 | 795 | break; |
a0d0e21e | 796 | } |
a0d0e21e | 797 | |
a1b95068 WL |
798 | case FF_0DECIMAL: |
799 | arg = *fpc++; | |
800 | #if defined(USE_LONG_DOUBLE) | |
801 | fmt = (arg & 256) ? "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl; | |
802 | #else | |
803 | fmt = (arg & 256) ? "%#0*.*f" : "%0*.*f"; | |
804 | #endif | |
805 | goto ff_dec; | |
a0d0e21e | 806 | case FF_DECIMAL: |
a0d0e21e | 807 | arg = *fpc++; |
65202027 | 808 | #if defined(USE_LONG_DOUBLE) |
a1b95068 | 809 | fmt = (arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl; |
65202027 | 810 | #else |
a1b95068 | 811 | fmt = (arg & 256) ? "%#*.*f" : "%*.*f"; |
65202027 | 812 | #endif |
a1b95068 | 813 | ff_dec: |
784707d5 JP |
814 | /* If the field is marked with ^ and the value is undefined, |
815 | blank it out. */ | |
784707d5 JP |
816 | if ((arg & 512) && !SvOK(sv)) { |
817 | arg = fieldsize; | |
818 | while (arg--) | |
819 | *t++ = ' '; | |
820 | break; | |
821 | } | |
822 | gotsome = TRUE; | |
823 | value = SvNV(sv); | |
a1b95068 | 824 | /* overflow evidence */ |
bfed75c6 | 825 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
826 | arg = fieldsize; |
827 | while (arg--) | |
828 | *t++ = '#'; | |
829 | break; | |
830 | } | |
784707d5 JP |
831 | /* Formats aren't yet marked for locales, so assume "yes". */ |
832 | { | |
833 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
e80fed9d JH |
834 | #ifdef USE_SNPRINTF |
835 | snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); | |
836 | #else | |
a1b95068 | 837 | sprintf(t, fmt, (int) fieldsize, (int) arg & 255, value); |
e80fed9d | 838 | #endif /* ifdef USE_SNPRINTF */ |
784707d5 JP |
839 | RESTORE_NUMERIC_STANDARD(); |
840 | } | |
841 | t += fieldsize; | |
842 | break; | |
a1b95068 | 843 | |
a0d0e21e LW |
844 | case FF_NEWLINE: |
845 | f++; | |
846 | while (t-- > linemark && *t == ' ') ; | |
847 | t++; | |
848 | *t++ = '\n'; | |
849 | break; | |
850 | ||
851 | case FF_BLANK: | |
852 | arg = *fpc++; | |
853 | if (gotsome) { | |
854 | if (arg) { /* repeat until fields exhausted? */ | |
855 | *t = '\0'; | |
b15aece3 | 856 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 857 | lines += FmLINES(PL_formtarget); |
a0d0e21e LW |
858 | if (lines == 200) { |
859 | arg = t - linemark; | |
860 | if (strnEQ(linemark, linemark - arg, arg)) | |
cea2e8a9 | 861 | DIE(aTHX_ "Runaway format"); |
a0d0e21e | 862 | } |
1bd51a4c IH |
863 | if (targ_is_utf8) |
864 | SvUTF8_on(PL_formtarget); | |
3280af22 | 865 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
866 | SP = ORIGMARK; |
867 | RETURNOP(cLISTOP->op_first); | |
868 | } | |
869 | } | |
870 | else { | |
871 | t = linemark; | |
872 | lines--; | |
873 | } | |
874 | break; | |
875 | ||
876 | case FF_MORE: | |
5a34cab7 NC |
877 | { |
878 | const char *s = chophere; | |
879 | const char *send = item + len; | |
880 | if (chopspace) { | |
af68e756 | 881 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 882 | s++; |
a0d0e21e | 883 | } |
5a34cab7 NC |
884 | if (s < send) { |
885 | char *s1; | |
886 | arg = fieldsize - itemsize; | |
887 | if (arg) { | |
888 | fieldsize -= arg; | |
889 | while (arg-- > 0) | |
890 | *t++ = ' '; | |
891 | } | |
892 | s1 = t - 3; | |
893 | if (strnEQ(s1," ",3)) { | |
894 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
895 | s1--; | |
896 | } | |
897 | *s1++ = '.'; | |
898 | *s1++ = '.'; | |
899 | *s1++ = '.'; | |
a0d0e21e | 900 | } |
5a34cab7 | 901 | break; |
a0d0e21e | 902 | } |
a0d0e21e LW |
903 | case FF_END: |
904 | *t = '\0'; | |
b15aece3 | 905 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
906 | if (targ_is_utf8) |
907 | SvUTF8_on(PL_formtarget); | |
3280af22 | 908 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
909 | SP = ORIGMARK; |
910 | RETPUSHYES; | |
911 | } | |
912 | } | |
913 | } | |
914 | ||
915 | PP(pp_grepstart) | |
916 | { | |
27da23d5 | 917 | dVAR; dSP; |
a0d0e21e LW |
918 | SV *src; |
919 | ||
3280af22 | 920 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 921 | (void)POPMARK; |
54310121 | 922 | if (GIMME_V == G_SCALAR) |
0b024f31 | 923 | XPUSHs(sv_2mortal(newSViv(0))); |
533c011a | 924 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 925 | } |
3280af22 | 926 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
927 | pp_pushmark(); /* push dst */ |
928 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
929 | ENTER; /* enter outer scope */ |
930 | ||
931 | SAVETMPS; | |
59f00321 RGS |
932 | if (PL_op->op_private & OPpGREP_LEX) |
933 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
934 | else | |
935 | SAVE_DEFSV; | |
a0d0e21e | 936 | ENTER; /* enter inner scope */ |
7766f137 | 937 | SAVEVPTR(PL_curpm); |
a0d0e21e | 938 | |
3280af22 | 939 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 940 | SvTEMP_off(src); |
59f00321 RGS |
941 | if (PL_op->op_private & OPpGREP_LEX) |
942 | PAD_SVl(PL_op->op_targ) = src; | |
943 | else | |
944 | DEFSV = src; | |
a0d0e21e LW |
945 | |
946 | PUTBACK; | |
533c011a | 947 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 948 | pp_pushmark(); /* push top */ |
533c011a | 949 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
950 | } |
951 | ||
a0d0e21e LW |
952 | PP(pp_mapwhile) |
953 | { | |
27da23d5 | 954 | dVAR; dSP; |
f54cb97a | 955 | const I32 gimme = GIMME_V; |
544f3153 | 956 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
957 | I32 count; |
958 | I32 shift; | |
959 | SV** src; | |
ac27b0f5 | 960 | SV** dst; |
a0d0e21e | 961 | |
544f3153 | 962 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 963 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
964 | |
965 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 966 | if (items && gimme != G_VOID) { |
544f3153 GS |
967 | /* might need to make room back there first */ |
968 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
969 | /* XXX this implementation is very pessimal because the stack | |
970 | * is repeatedly extended for every set of items. Is possible | |
971 | * to do this without any stack extension or copying at all | |
972 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 973 | * (like foreach does). --gsar */ |
544f3153 GS |
974 | |
975 | /* everything in the stack after the destination list moves | |
976 | * towards the end the stack by the amount of room needed */ | |
977 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
978 | ||
979 | /* items to shift up (accounting for the moved source pointer) */ | |
980 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
981 | |
982 | /* This optimization is by Ben Tilly and it does | |
983 | * things differently from what Sarathy (gsar) | |
984 | * is describing. The downside of this optimization is | |
985 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
986 | * to the Perl stack, but on the other hand this | |
987 | * shouldn't be a problem. If Sarathy's idea gets | |
988 | * implemented, this optimization should become | |
989 | * irrelevant. --jhi */ | |
990 | if (shift < count) | |
991 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 992 | |
924508f0 GS |
993 | EXTEND(SP,shift); |
994 | src = SP; | |
995 | dst = (SP += shift); | |
3280af22 NIS |
996 | PL_markstack_ptr[-1] += shift; |
997 | *PL_markstack_ptr += shift; | |
544f3153 | 998 | while (count--) |
a0d0e21e LW |
999 | *dst-- = *src--; |
1000 | } | |
544f3153 | 1001 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1002 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1003 | if (gimme == G_ARRAY) { |
1004 | while (items-- > 0) | |
1005 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1006 | } | |
bfed75c6 | 1007 | else { |
22023b26 TP |
1008 | /* scalar context: we don't care about which values map returns |
1009 | * (we use undef here). And so we certainly don't want to do mortal | |
1010 | * copies of meaningless values. */ | |
1011 | while (items-- > 0) { | |
b988aa42 | 1012 | (void)POPs; |
22023b26 TP |
1013 | *dst-- = &PL_sv_undef; |
1014 | } | |
1015 | } | |
a0d0e21e LW |
1016 | } |
1017 | LEAVE; /* exit inner scope */ | |
1018 | ||
1019 | /* All done yet? */ | |
3280af22 | 1020 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1021 | |
1022 | (void)POPMARK; /* pop top */ | |
1023 | LEAVE; /* exit outer scope */ | |
1024 | (void)POPMARK; /* pop src */ | |
3280af22 | 1025 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1026 | (void)POPMARK; /* pop dst */ |
3280af22 | 1027 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1028 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1029 | if (PL_op->op_private & OPpGREP_LEX) { |
1030 | SV* sv = sv_newmortal(); | |
1031 | sv_setiv(sv, items); | |
1032 | PUSHs(sv); | |
1033 | } | |
1034 | else { | |
1035 | dTARGET; | |
1036 | XPUSHi(items); | |
1037 | } | |
a0d0e21e | 1038 | } |
54310121 | 1039 | else if (gimme == G_ARRAY) |
1040 | SP += items; | |
a0d0e21e LW |
1041 | RETURN; |
1042 | } | |
1043 | else { | |
1044 | SV *src; | |
1045 | ||
1046 | ENTER; /* enter inner scope */ | |
7766f137 | 1047 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1048 | |
544f3153 | 1049 | /* set $_ to the new source item */ |
3280af22 | 1050 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1051 | SvTEMP_off(src); |
59f00321 RGS |
1052 | if (PL_op->op_private & OPpGREP_LEX) |
1053 | PAD_SVl(PL_op->op_targ) = src; | |
1054 | else | |
1055 | DEFSV = src; | |
a0d0e21e LW |
1056 | |
1057 | RETURNOP(cLOGOP->op_other); | |
1058 | } | |
1059 | } | |
1060 | ||
a0d0e21e LW |
1061 | /* Range stuff. */ |
1062 | ||
1063 | PP(pp_range) | |
1064 | { | |
97aff369 | 1065 | dVAR; |
a0d0e21e | 1066 | if (GIMME == G_ARRAY) |
1a67a97c | 1067 | return NORMAL; |
538573f7 | 1068 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1069 | return cLOGOP->op_other; |
538573f7 | 1070 | else |
1a67a97c | 1071 | return NORMAL; |
a0d0e21e LW |
1072 | } |
1073 | ||
1074 | PP(pp_flip) | |
1075 | { | |
97aff369 | 1076 | dVAR; |
39644a26 | 1077 | dSP; |
a0d0e21e LW |
1078 | |
1079 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1080 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1081 | } |
1082 | else { | |
1083 | dTOPss; | |
44f8325f | 1084 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1085 | int flip = 0; |
790090df | 1086 | |
bfed75c6 | 1087 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1088 | if (GvIO(PL_last_in_gv)) { |
1089 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1090 | } | |
1091 | else { | |
fafc274c | 1092 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1093 | if (gv && GvSV(gv)) |
1094 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1095 | } |
bfed75c6 AL |
1096 | } else { |
1097 | flip = SvTRUE(sv); | |
1098 | } | |
1099 | if (flip) { | |
a0d0e21e | 1100 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1101 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1102 | sv_setiv(targ, 1); |
3e3baf6d | 1103 | SETs(targ); |
a0d0e21e LW |
1104 | RETURN; |
1105 | } | |
1106 | else { | |
1107 | sv_setiv(targ, 0); | |
924508f0 | 1108 | SP--; |
1a67a97c | 1109 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1110 | } |
1111 | } | |
c69006e4 | 1112 | sv_setpvn(TARG, "", 0); |
a0d0e21e LW |
1113 | SETs(targ); |
1114 | RETURN; | |
1115 | } | |
1116 | } | |
1117 | ||
8e9bbdb9 RGS |
1118 | /* This code tries to decide if "$left .. $right" should use the |
1119 | magical string increment, or if the range is numeric (we make | |
1120 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1121 | ||
1122 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1123 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1124 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1125 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1126 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1127 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1128 | |
a0d0e21e LW |
1129 | PP(pp_flop) |
1130 | { | |
97aff369 | 1131 | dVAR; dSP; |
a0d0e21e LW |
1132 | |
1133 | if (GIMME == G_ARRAY) { | |
1134 | dPOPPOPssrl; | |
86cb7173 | 1135 | |
5b295bef RD |
1136 | SvGETMAGIC(left); |
1137 | SvGETMAGIC(right); | |
a0d0e21e | 1138 | |
8e9bbdb9 | 1139 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1140 | register IV i, j; |
1141 | IV max; | |
4fe3f0fa MHM |
1142 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1143 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1144 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1145 | i = SvIV(left); |
1146 | max = SvIV(right); | |
bbce6d69 | 1147 | if (max >= i) { |
c1ab3db2 AK |
1148 | j = max - i + 1; |
1149 | EXTEND_MORTAL(j); | |
1150 | EXTEND(SP, j); | |
bbce6d69 | 1151 | } |
c1ab3db2 AK |
1152 | else |
1153 | j = 0; | |
1154 | while (j--) { | |
901017d6 | 1155 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1156 | PUSHs(sv); |
1157 | } | |
1158 | } | |
1159 | else { | |
44f8325f | 1160 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1161 | STRLEN len; |
823a54a3 | 1162 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1163 | |
901017d6 | 1164 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1165 | SvPV_force_nolen(sv); |
89ea2908 | 1166 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1167 | XPUSHs(sv); |
b15aece3 | 1168 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1169 | break; |
a0d0e21e LW |
1170 | sv = sv_2mortal(newSVsv(sv)); |
1171 | sv_inc(sv); | |
1172 | } | |
a0d0e21e LW |
1173 | } |
1174 | } | |
1175 | else { | |
1176 | dTOPss; | |
901017d6 | 1177 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1178 | int flop = 0; |
a0d0e21e | 1179 | sv_inc(targ); |
4e3399f9 YST |
1180 | |
1181 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1182 | if (GvIO(PL_last_in_gv)) { | |
1183 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1184 | } | |
1185 | else { | |
fafc274c | 1186 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1187 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1188 | } | |
1189 | } | |
1190 | else { | |
1191 | flop = SvTRUE(sv); | |
1192 | } | |
1193 | ||
1194 | if (flop) { | |
a0d0e21e | 1195 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1196 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1197 | } |
1198 | SETs(targ); | |
1199 | } | |
1200 | ||
1201 | RETURN; | |
1202 | } | |
1203 | ||
1204 | /* Control. */ | |
1205 | ||
27da23d5 | 1206 | static const char * const context_name[] = { |
515afda2 NC |
1207 | "pseudo-block", |
1208 | "subroutine", | |
1209 | "eval", | |
1210 | "loop", | |
1211 | "substitution", | |
1212 | "block", | |
0d863452 RH |
1213 | "format", |
1214 | "given", | |
1215 | "when" | |
515afda2 NC |
1216 | }; |
1217 | ||
76e3520e | 1218 | STATIC I32 |
06b5626a | 1219 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1220 | { |
97aff369 | 1221 | dVAR; |
a0d0e21e | 1222 | register I32 i; |
a0d0e21e LW |
1223 | |
1224 | for (i = cxstack_ix; i >= 0; i--) { | |
901017d6 | 1225 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1226 | switch (CxTYPE(cx)) { |
a0d0e21e | 1227 | case CXt_SUBST: |
a0d0e21e | 1228 | case CXt_SUB: |
7766f137 | 1229 | case CXt_FORMAT: |
a0d0e21e | 1230 | case CXt_EVAL: |
0a753a76 | 1231 | case CXt_NULL: |
0d863452 RH |
1232 | case CXt_GIVEN: |
1233 | case CXt_WHEN: | |
e476b1b5 | 1234 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1235 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1236 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1237 | if (CxTYPE(cx) == CXt_NULL) | |
1238 | return -1; | |
1239 | break; | |
a0d0e21e | 1240 | case CXt_LOOP: |
901017d6 | 1241 | if ( !cx->blk_loop.label || strNE(label, cx->blk_loop.label) ) { |
cea2e8a9 | 1242 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
68dc0745 | 1243 | (long)i, cx->blk_loop.label)); |
a0d0e21e LW |
1244 | continue; |
1245 | } | |
cea2e8a9 | 1246 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1247 | return i; |
1248 | } | |
1249 | } | |
1250 | return i; | |
1251 | } | |
1252 | ||
0d863452 RH |
1253 | |
1254 | ||
e50aee73 | 1255 | I32 |
864dbfa3 | 1256 | Perl_dowantarray(pTHX) |
e50aee73 | 1257 | { |
97aff369 | 1258 | dVAR; |
f54cb97a | 1259 | const I32 gimme = block_gimme(); |
54310121 | 1260 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1261 | } | |
1262 | ||
1263 | I32 | |
864dbfa3 | 1264 | Perl_block_gimme(pTHX) |
54310121 | 1265 | { |
97aff369 | 1266 | dVAR; |
06b5626a | 1267 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1268 | if (cxix < 0) |
46fc3d4c | 1269 | return G_VOID; |
e50aee73 | 1270 | |
54310121 | 1271 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1272 | case G_VOID: |
1273 | return G_VOID; | |
54310121 | 1274 | case G_SCALAR: |
e50aee73 | 1275 | return G_SCALAR; |
54310121 | 1276 | case G_ARRAY: |
1277 | return G_ARRAY; | |
1278 | default: | |
cea2e8a9 | 1279 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1280 | /* NOTREACHED */ |
1281 | return 0; | |
54310121 | 1282 | } |
e50aee73 AD |
1283 | } |
1284 | ||
78f9721b SM |
1285 | I32 |
1286 | Perl_is_lvalue_sub(pTHX) | |
1287 | { | |
97aff369 | 1288 | dVAR; |
06b5626a | 1289 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1290 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1291 | ||
1292 | if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1293 | return cxstack[cxix].blk_sub.lval; | |
1294 | else | |
1295 | return 0; | |
1296 | } | |
1297 | ||
76e3520e | 1298 | STATIC I32 |
cea2e8a9 | 1299 | S_dopoptosub(pTHX_ I32 startingblock) |
a0d0e21e | 1300 | { |
97aff369 | 1301 | dVAR; |
2c375eb9 GS |
1302 | return dopoptosub_at(cxstack, startingblock); |
1303 | } | |
1304 | ||
1305 | STATIC I32 | |
901017d6 | 1306 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1307 | { |
97aff369 | 1308 | dVAR; |
a0d0e21e | 1309 | I32 i; |
a0d0e21e | 1310 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1311 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1312 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1313 | default: |
1314 | continue; | |
1315 | case CXt_EVAL: | |
1316 | case CXt_SUB: | |
7766f137 | 1317 | case CXt_FORMAT: |
cea2e8a9 | 1318 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1319 | return i; |
1320 | } | |
1321 | } | |
1322 | return i; | |
1323 | } | |
1324 | ||
76e3520e | 1325 | STATIC I32 |
cea2e8a9 | 1326 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1327 | { |
97aff369 | 1328 | dVAR; |
a0d0e21e | 1329 | I32 i; |
a0d0e21e | 1330 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1331 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1332 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1333 | default: |
1334 | continue; | |
1335 | case CXt_EVAL: | |
cea2e8a9 | 1336 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1337 | return i; |
1338 | } | |
1339 | } | |
1340 | return i; | |
1341 | } | |
1342 | ||
76e3520e | 1343 | STATIC I32 |
cea2e8a9 | 1344 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1345 | { |
97aff369 | 1346 | dVAR; |
a0d0e21e | 1347 | I32 i; |
a0d0e21e | 1348 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1349 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1350 | switch (CxTYPE(cx)) { |
a0d0e21e | 1351 | case CXt_SUBST: |
a0d0e21e | 1352 | case CXt_SUB: |
7766f137 | 1353 | case CXt_FORMAT: |
a0d0e21e | 1354 | case CXt_EVAL: |
0a753a76 | 1355 | case CXt_NULL: |
e476b1b5 | 1356 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1357 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1358 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1359 | if ((CxTYPE(cx)) == CXt_NULL) | |
1360 | return -1; | |
1361 | break; | |
a0d0e21e | 1362 | case CXt_LOOP: |
cea2e8a9 | 1363 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1364 | return i; |
1365 | } | |
1366 | } | |
1367 | return i; | |
1368 | } | |
1369 | ||
0d863452 RH |
1370 | STATIC I32 |
1371 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1372 | { | |
97aff369 | 1373 | dVAR; |
0d863452 RH |
1374 | I32 i; |
1375 | for (i = startingblock; i >= 0; i--) { | |
1376 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1377 | switch (CxTYPE(cx)) { | |
1378 | default: | |
1379 | continue; | |
1380 | case CXt_GIVEN: | |
1381 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1382 | return i; | |
1383 | case CXt_LOOP: | |
1384 | if (CxFOREACHDEF(cx)) { | |
1385 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1386 | return i; | |
1387 | } | |
1388 | } | |
1389 | } | |
1390 | return i; | |
1391 | } | |
1392 | ||
1393 | STATIC I32 | |
1394 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1395 | { | |
97aff369 | 1396 | dVAR; |
0d863452 RH |
1397 | I32 i; |
1398 | for (i = startingblock; i >= 0; i--) { | |
1399 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1400 | switch (CxTYPE(cx)) { | |
1401 | default: | |
1402 | continue; | |
1403 | case CXt_WHEN: | |
1404 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1405 | return i; | |
1406 | } | |
1407 | } | |
1408 | return i; | |
1409 | } | |
1410 | ||
a0d0e21e | 1411 | void |
864dbfa3 | 1412 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1413 | { |
97aff369 | 1414 | dVAR; |
a0d0e21e LW |
1415 | I32 optype; |
1416 | ||
1417 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1418 | SV *sv; |
06b5626a | 1419 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1420 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1421 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1422 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1423 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1424 | case CXt_SUBST: |
1425 | POPSUBST(cx); | |
1426 | continue; /* not break */ | |
a0d0e21e | 1427 | case CXt_SUB: |
b0d9ce38 GS |
1428 | POPSUB(cx,sv); |
1429 | LEAVESUB(sv); | |
a0d0e21e LW |
1430 | break; |
1431 | case CXt_EVAL: | |
1432 | POPEVAL(cx); | |
1433 | break; | |
1434 | case CXt_LOOP: | |
1435 | POPLOOP(cx); | |
1436 | break; | |
0a753a76 | 1437 | case CXt_NULL: |
a0d0e21e | 1438 | break; |
7766f137 GS |
1439 | case CXt_FORMAT: |
1440 | POPFORMAT(cx); | |
1441 | break; | |
a0d0e21e | 1442 | } |
c90c0ff4 | 1443 | cxstack_ix--; |
a0d0e21e | 1444 | } |
1b6737cc | 1445 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1446 | } |
1447 | ||
5a844595 GS |
1448 | void |
1449 | Perl_qerror(pTHX_ SV *err) | |
1450 | { | |
97aff369 | 1451 | dVAR; |
5a844595 GS |
1452 | if (PL_in_eval) |
1453 | sv_catsv(ERRSV, err); | |
1454 | else if (PL_errors) | |
1455 | sv_catsv(PL_errors, err); | |
1456 | else | |
95b63a38 | 1457 | Perl_warn(aTHX_ "%"SVf, (void*)err); |
5a844595 GS |
1458 | ++PL_error_count; |
1459 | } | |
1460 | ||
a0d0e21e | 1461 | OP * |
35a4481c | 1462 | Perl_die_where(pTHX_ const char *message, STRLEN msglen) |
a0d0e21e | 1463 | { |
27da23d5 | 1464 | dVAR; |
87582a92 | 1465 | |
3280af22 | 1466 | if (PL_in_eval) { |
a0d0e21e | 1467 | I32 cxix; |
a0d0e21e | 1468 | I32 gimme; |
a0d0e21e | 1469 | |
4e6ea2c3 | 1470 | if (message) { |
faef0170 | 1471 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1472 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1473 | SV * const err = ERRSV; |
c445ea15 | 1474 | const char *e = NULL; |
98eae8f5 | 1475 | if (!SvPOK(err)) |
c69006e4 | 1476 | sv_setpvn(err,"",0); |
98eae8f5 | 1477 | else if (SvCUR(err) >= sizeof(prefix)+msglen-1) { |
0510663f | 1478 | STRLEN len; |
349d4f2f | 1479 | e = SvPV_const(err, len); |
0510663f | 1480 | e += len - msglen; |
98eae8f5 | 1481 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1482 | e = NULL; |
98eae8f5 GS |
1483 | } |
1484 | if (!e) { | |
1485 | SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen); | |
1486 | sv_catpvn(err, prefix, sizeof(prefix)-1); | |
1487 | sv_catpvn(err, message, msglen); | |
e476b1b5 | 1488 | if (ckWARN(WARN_MISC)) { |
504618e9 | 1489 | const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1; |
b15aece3 | 1490 | Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX_const(err)+start); |
4e6ea2c3 | 1491 | } |
4633a7c4 | 1492 | } |
4633a7c4 | 1493 | } |
1aa99e6b | 1494 | else { |
06bf62c7 | 1495 | sv_setpvn(ERRSV, message, msglen); |
1aa99e6b | 1496 | } |
4633a7c4 | 1497 | } |
4e6ea2c3 | 1498 | |
5a844595 GS |
1499 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1500 | && PL_curstackinfo->si_prev) | |
1501 | { | |
bac4b2ad | 1502 | dounwind(-1); |
d3acc0f7 | 1503 | POPSTACK; |
bac4b2ad | 1504 | } |
e336de0d | 1505 | |
a0d0e21e LW |
1506 | if (cxix >= 0) { |
1507 | I32 optype; | |
35a4481c | 1508 | register PERL_CONTEXT *cx; |
901017d6 | 1509 | SV **newsp; |
a0d0e21e LW |
1510 | |
1511 | if (cxix < cxstack_ix) | |
1512 | dounwind(cxix); | |
1513 | ||
3280af22 | 1514 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1515 | if (CxTYPE(cx) != CXt_EVAL) { |
16869676 | 1516 | if (!message) |
349d4f2f | 1517 | message = SvPVx_const(ERRSV, msglen); |
bf49b057 GS |
1518 | PerlIO_write(Perl_error_log, "panic: die ", 11); |
1519 | PerlIO_write(Perl_error_log, message, msglen); | |
a0d0e21e LW |
1520 | my_exit(1); |
1521 | } | |
1522 | POPEVAL(cx); | |
1523 | ||
1524 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1525 | *++newsp = &PL_sv_undef; |
1526 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1527 | |
1528 | LEAVE; | |
748a9306 | 1529 | |
7fb6a879 GS |
1530 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1531 | * XXX it might be better to find a way to avoid messing with | |
1532 | * PL_curcop in save_re_context() instead, but this is a more | |
1533 | * minimal fix --GSAR */ | |
1534 | PL_curcop = cx->blk_oldcop; | |
1535 | ||
7a2e2cd6 | 1536 | if (optype == OP_REQUIRE) { |
44f8325f | 1537 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1538 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1539 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1540 | &PL_sv_undef, 0); |
5a844595 GS |
1541 | DIE(aTHX_ "%sCompilation failed in require", |
1542 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1543 | } |
f39bc417 DM |
1544 | assert(CxTYPE(cx) == CXt_EVAL); |
1545 | return cx->blk_eval.retop; | |
a0d0e21e LW |
1546 | } |
1547 | } | |
9cc2fdd3 | 1548 | if (!message) |
349d4f2f | 1549 | message = SvPVx_const(ERRSV, msglen); |
87582a92 | 1550 | |
7ff03255 | 1551 | write_to_stderr(message, msglen); |
f86702cc | 1552 | my_failure_exit(); |
1553 | /* NOTREACHED */ | |
a0d0e21e LW |
1554 | return 0; |
1555 | } | |
1556 | ||
1557 | PP(pp_xor) | |
1558 | { | |
97aff369 | 1559 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1560 | if (SvTRUE(left) != SvTRUE(right)) |
1561 | RETSETYES; | |
1562 | else | |
1563 | RETSETNO; | |
1564 | } | |
1565 | ||
a0d0e21e LW |
1566 | PP(pp_caller) |
1567 | { | |
97aff369 | 1568 | dVAR; |
39644a26 | 1569 | dSP; |
a0d0e21e | 1570 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1571 | register const PERL_CONTEXT *cx; |
1572 | register const PERL_CONTEXT *ccstack = cxstack; | |
1573 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1574 | I32 gimme; |
06b5626a | 1575 | const char *stashname; |
a0d0e21e LW |
1576 | I32 count = 0; |
1577 | ||
1578 | if (MAXARG) | |
1579 | count = POPi; | |
27d41816 | 1580 | |
a0d0e21e | 1581 | for (;;) { |
2c375eb9 GS |
1582 | /* we may be in a higher stacklevel, so dig down deeper */ |
1583 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1584 | top_si = top_si->si_prev; | |
1585 | ccstack = top_si->si_cxstack; | |
1586 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1587 | } | |
a0d0e21e | 1588 | if (cxix < 0) { |
27d41816 DM |
1589 | if (GIMME != G_ARRAY) { |
1590 | EXTEND(SP, 1); | |
a0d0e21e | 1591 | RETPUSHUNDEF; |
27d41816 | 1592 | } |
a0d0e21e LW |
1593 | RETURN; |
1594 | } | |
f2a7f298 DG |
1595 | /* caller() should not report the automatic calls to &DB::sub */ |
1596 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1597 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1598 | count++; |
1599 | if (!count--) | |
1600 | break; | |
2c375eb9 | 1601 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1602 | } |
2c375eb9 GS |
1603 | |
1604 | cx = &ccstack[cxix]; | |
7766f137 | 1605 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1606 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1607 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1608 | field below is defined for any cx. */ |
f2a7f298 DG |
1609 | /* caller() should not report the automatic calls to &DB::sub */ |
1610 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1611 | cx = &ccstack[dbcxix]; |
06a5b730 | 1612 | } |
1613 | ||
ed094faf | 1614 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1615 | if (GIMME != G_ARRAY) { |
27d41816 | 1616 | EXTEND(SP, 1); |
ed094faf | 1617 | if (!stashname) |
3280af22 | 1618 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1619 | else { |
1620 | dTARGET; | |
ed094faf | 1621 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1622 | PUSHs(TARG); |
1623 | } | |
a0d0e21e LW |
1624 | RETURN; |
1625 | } | |
a0d0e21e | 1626 | |
b3ca2e83 | 1627 | EXTEND(SP, 11); |
27d41816 | 1628 | |
ed094faf | 1629 | if (!stashname) |
3280af22 | 1630 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1631 | else |
ed094faf | 1632 | PUSHs(sv_2mortal(newSVpv(stashname, 0))); |
248c2a4d | 1633 | PUSHs(sv_2mortal(newSVpv(OutCopFILE(cx->blk_oldcop), 0))); |
57843af0 | 1634 | PUSHs(sv_2mortal(newSViv((I32)CopLINE(cx->blk_oldcop)))); |
a0d0e21e LW |
1635 | if (!MAXARG) |
1636 | RETURN; | |
7766f137 | 1637 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1638 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1639 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1640 | if (isGV(cvgv)) { |
561b68a9 | 1641 | SV * const sv = newSV(0); |
c445ea15 | 1642 | gv_efullname3(sv, cvgv, NULL); |
07b8c804 RGS |
1643 | PUSHs(sv_2mortal(sv)); |
1644 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); | |
1645 | } | |
1646 | else { | |
396482e1 | 1647 | PUSHs(sv_2mortal(newSVpvs("(unknown)"))); |
72699b0f | 1648 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 | 1649 | } |
a0d0e21e LW |
1650 | } |
1651 | else { | |
396482e1 | 1652 | PUSHs(sv_2mortal(newSVpvs("(eval)"))); |
a0d0e21e LW |
1653 | PUSHs(sv_2mortal(newSViv(0))); |
1654 | } | |
54310121 | 1655 | gimme = (I32)cx->blk_gimme; |
1656 | if (gimme == G_VOID) | |
3280af22 | 1657 | PUSHs(&PL_sv_undef); |
54310121 | 1658 | else |
1659 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); | |
6b35e009 | 1660 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1661 | /* eval STRING */ |
06a5b730 | 1662 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 | 1663 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1664 | PUSHs(&PL_sv_no); |
0f79a09d | 1665 | } |
811a4de9 | 1666 | /* require */ |
0f79a09d GS |
1667 | else if (cx->blk_eval.old_namesv) { |
1668 | PUSHs(sv_2mortal(newSVsv(cx->blk_eval.old_namesv))); | |
3280af22 | 1669 | PUSHs(&PL_sv_yes); |
06a5b730 | 1670 | } |
811a4de9 GS |
1671 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1672 | else { | |
1673 | PUSHs(&PL_sv_undef); | |
1674 | PUSHs(&PL_sv_undef); | |
1675 | } | |
4633a7c4 | 1676 | } |
a682de96 GS |
1677 | else { |
1678 | PUSHs(&PL_sv_undef); | |
1679 | PUSHs(&PL_sv_undef); | |
1680 | } | |
1681 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs | |
ed094faf | 1682 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1683 | { |
66a1b24b AL |
1684 | AV * const ary = cx->blk_sub.argarray; |
1685 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1686 | |
3280af22 | 1687 | if (!PL_dbargs) { |
71315bf2 | 1688 | GV* const tmpgv = gv_fetchpvs("DB::args", GV_ADD, SVt_PVAV); |
0bd48802 | 1689 | PL_dbargs = GvAV(gv_AVadd(tmpgv)); |
a5f75d66 | 1690 | GvMULTI_on(tmpgv); |
3ddcf04c | 1691 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1692 | } |
1693 | ||
3280af22 NIS |
1694 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1695 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1696 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1697 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1698 | } |
f3aa04c2 GS |
1699 | /* XXX only hints propagated via op_private are currently |
1700 | * visible (others are not easily accessible, since they | |
1701 | * use the global PL_hints) */ | |
623e6609 | 1702 | PUSHs(sv_2mortal(newSViv(CopHINTS_get(cx->blk_oldcop)))); |
e476b1b5 GS |
1703 | { |
1704 | SV * mask ; | |
72dc9ed5 | 1705 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1706 | |
ac27b0f5 | 1707 | if (old_warnings == pWARN_NONE || |
114bafba | 1708 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1709 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1710 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1711 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1712 | /* Get the bit mask for $warnings::Bits{all}, because | |
1713 | * it could have been extended by warnings::register */ | |
1714 | SV **bits_all; | |
0bd48802 | 1715 | HV * const bits = get_hv("warnings::Bits", FALSE); |
017a3ce5 | 1716 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1717 | mask = newSVsv(*bits_all); |
1718 | } | |
1719 | else { | |
1720 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1721 | } | |
1722 | } | |
e476b1b5 | 1723 | else |
72dc9ed5 | 1724 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
e476b1b5 GS |
1725 | PUSHs(sv_2mortal(mask)); |
1726 | } | |
b3ca2e83 NC |
1727 | |
1728 | PUSHs(cx->blk_oldcop->cop_hints ? | |
1729 | sv_2mortal(newRV_noinc( | |
1730 | (SV*)Perl_refcounted_he_chain_2hv(aTHX_ | |
1731 | cx->blk_oldcop->cop_hints))) | |
1732 | : &PL_sv_undef); | |
a0d0e21e LW |
1733 | RETURN; |
1734 | } | |
1735 | ||
a0d0e21e LW |
1736 | PP(pp_reset) |
1737 | { | |
97aff369 | 1738 | dVAR; |
39644a26 | 1739 | dSP; |
0bd48802 | 1740 | const char * const tmps = (MAXARG < 1) ? "" : POPpconstx; |
11faa288 | 1741 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1742 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1743 | RETURN; |
1744 | } | |
1745 | ||
dd2155a4 DM |
1746 | /* like pp_nextstate, but used instead when the debugger is active */ |
1747 | ||
a0d0e21e LW |
1748 | PP(pp_dbstate) |
1749 | { | |
27da23d5 | 1750 | dVAR; |
533c011a | 1751 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1752 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1753 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1754 | FREETMPS; |
1755 | ||
5df8de69 DM |
1756 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1757 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1758 | { |
39644a26 | 1759 | dSP; |
c09156bb | 1760 | register PERL_CONTEXT *cx; |
f54cb97a | 1761 | const I32 gimme = G_ARRAY; |
eb160463 | 1762 | U8 hasargs; |
0bd48802 AL |
1763 | GV * const gv = PL_DBgv; |
1764 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1765 | |
a0d0e21e | 1766 | if (!cv) |
cea2e8a9 | 1767 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1768 | |
aea4f609 DM |
1769 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1770 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1771 | return NORMAL; |
748a9306 | 1772 | |
4633a7c4 LW |
1773 | ENTER; |
1774 | SAVETMPS; | |
1775 | ||
3280af22 | 1776 | SAVEI32(PL_debug); |
55497cff | 1777 | SAVESTACK_POS(); |
3280af22 | 1778 | PL_debug = 0; |
748a9306 | 1779 | hasargs = 0; |
924508f0 | 1780 | SPAGAIN; |
748a9306 | 1781 | |
aed2304a | 1782 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1783 | CvDEPTH(cv)++; |
1784 | PUSHMARK(SP); | |
1785 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1786 | CvDEPTH(cv)--; | |
1787 | FREETMPS; | |
1788 | LEAVE; | |
1789 | return NORMAL; | |
1790 | } | |
1791 | else { | |
1792 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1793 | PUSHSUB_DB(cx); | |
1794 | cx->blk_sub.retop = PL_op->op_next; | |
1795 | CvDEPTH(cv)++; | |
1796 | SAVECOMPPAD(); | |
1797 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1798 | RETURNOP(CvSTART(cv)); | |
1799 | } | |
a0d0e21e LW |
1800 | } |
1801 | else | |
1802 | return NORMAL; | |
1803 | } | |
1804 | ||
a0d0e21e LW |
1805 | PP(pp_enteriter) |
1806 | { | |
27da23d5 | 1807 | dVAR; dSP; dMARK; |
c09156bb | 1808 | register PERL_CONTEXT *cx; |
f54cb97a | 1809 | const I32 gimme = GIMME_V; |
a0d0e21e | 1810 | SV **svp; |
0d863452 | 1811 | U32 cxtype = CXt_LOOP | CXp_FOREACH; |
7766f137 GS |
1812 | #ifdef USE_ITHREADS |
1813 | void *iterdata; | |
1814 | #endif | |
a0d0e21e | 1815 | |
4633a7c4 LW |
1816 | ENTER; |
1817 | SAVETMPS; | |
1818 | ||
533c011a | 1819 | if (PL_op->op_targ) { |
14f338dc DM |
1820 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1821 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1822 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1823 | SVs_PADSTALE, SVs_PADSTALE); | |
1824 | } | |
c3564e5c | 1825 | #ifndef USE_ITHREADS |
dd2155a4 | 1826 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
54b9620d | 1827 | SAVESPTR(*svp); |
c3564e5c GS |
1828 | #else |
1829 | SAVEPADSV(PL_op->op_targ); | |
cbfa9890 | 1830 | iterdata = INT2PTR(void*, PL_op->op_targ); |
7766f137 GS |
1831 | cxtype |= CXp_PADVAR; |
1832 | #endif | |
54b9620d MB |
1833 | } |
1834 | else { | |
0bd48802 | 1835 | GV * const gv = (GV*)POPs; |
7766f137 | 1836 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1837 | SAVEGENERICSV(*svp); |
561b68a9 | 1838 | *svp = newSV(0); |
7766f137 GS |
1839 | #ifdef USE_ITHREADS |
1840 | iterdata = (void*)gv; | |
1841 | #endif | |
54b9620d | 1842 | } |
4633a7c4 | 1843 | |
0d863452 RH |
1844 | if (PL_op->op_private & OPpITER_DEF) |
1845 | cxtype |= CXp_FOR_DEF; | |
1846 | ||
a0d0e21e LW |
1847 | ENTER; |
1848 | ||
7766f137 GS |
1849 | PUSHBLOCK(cx, cxtype, SP); |
1850 | #ifdef USE_ITHREADS | |
1851 | PUSHLOOP(cx, iterdata, MARK); | |
1852 | #else | |
a0d0e21e | 1853 | PUSHLOOP(cx, svp, MARK); |
7766f137 | 1854 | #endif |
533c011a | 1855 | if (PL_op->op_flags & OPf_STACKED) { |
44a8e56a | 1856 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
89ea2908 GA |
1857 | if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) { |
1858 | dPOPss; | |
0bd48802 | 1859 | SV * const right = (SV*)cx->blk_loop.iterary; |
984a4bea RD |
1860 | SvGETMAGIC(sv); |
1861 | SvGETMAGIC(right); | |
4fe3f0fa MHM |
1862 | if (RANGE_IS_NUMERIC(sv,right)) { |
1863 | if ((SvOK(sv) && SvNV(sv) < IV_MIN) || | |
1864 | (SvOK(right) && SvNV(right) >= IV_MAX)) | |
076d9a11 MHM |
1865 | DIE(aTHX_ "Range iterator outside integer range"); |
1866 | cx->blk_loop.iterix = SvIV(sv); | |
4fe3f0fa | 1867 | cx->blk_loop.itermax = SvIV(right); |
d4665a05 DM |
1868 | #ifdef DEBUGGING |
1869 | /* for correct -Dstv display */ | |
1870 | cx->blk_oldsp = sp - PL_stack_base; | |
1871 | #endif | |
89ea2908 | 1872 | } |
3f63a782 | 1873 | else { |
89ea2908 | 1874 | cx->blk_loop.iterlval = newSVsv(sv); |
13c5b33c | 1875 | (void) SvPV_force_nolen(cx->blk_loop.iterlval); |
10516c54 | 1876 | (void) SvPV_nolen_const(right); |
3f63a782 | 1877 | } |
89ea2908 | 1878 | } |
ef3e5ea9 | 1879 | else if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1880 | cx->blk_loop.itermax = 0; |
1881 | cx->blk_loop.iterix = AvFILL(cx->blk_loop.iterary) + 1; | |
ef3e5ea9 NC |
1882 | |
1883 | } | |
89ea2908 | 1884 | } |
4633a7c4 | 1885 | else { |
3280af22 NIS |
1886 | cx->blk_loop.iterary = PL_curstack; |
1887 | AvFILLp(PL_curstack) = SP - PL_stack_base; | |
ef3e5ea9 | 1888 | if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1889 | cx->blk_loop.itermax = MARK - PL_stack_base + 1; |
1890 | cx->blk_loop.iterix = cx->blk_oldsp + 1; | |
ef3e5ea9 NC |
1891 | } |
1892 | else { | |
1893 | cx->blk_loop.iterix = MARK - PL_stack_base; | |
1894 | } | |
4633a7c4 | 1895 | } |
a0d0e21e LW |
1896 | |
1897 | RETURN; | |
1898 | } | |
1899 | ||
1900 | PP(pp_enterloop) | |
1901 | { | |
27da23d5 | 1902 | dVAR; dSP; |
c09156bb | 1903 | register PERL_CONTEXT *cx; |
f54cb97a | 1904 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
1905 | |
1906 | ENTER; | |
1907 | SAVETMPS; | |
1908 | ENTER; | |
1909 | ||
1910 | PUSHBLOCK(cx, CXt_LOOP, SP); | |
1911 | PUSHLOOP(cx, 0, SP); | |
1912 | ||
1913 | RETURN; | |
1914 | } | |
1915 | ||
1916 | PP(pp_leaveloop) | |
1917 | { | |
27da23d5 | 1918 | dVAR; dSP; |
c09156bb | 1919 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1920 | I32 gimme; |
1921 | SV **newsp; | |
1922 | PMOP *newpm; | |
1923 | SV **mark; | |
1924 | ||
1925 | POPBLOCK(cx,newpm); | |
3a1b2b9e | 1926 | assert(CxTYPE(cx) == CXt_LOOP); |
4fdae800 | 1927 | mark = newsp; |
a8bba7fa | 1928 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 1929 | |
a1f49e72 | 1930 | TAINT_NOT; |
54310121 | 1931 | if (gimme == G_VOID) |
6f207bd3 | 1932 | NOOP; |
54310121 | 1933 | else if (gimme == G_SCALAR) { |
1934 | if (mark < SP) | |
1935 | *++newsp = sv_mortalcopy(*SP); | |
1936 | else | |
3280af22 | 1937 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
1938 | } |
1939 | else { | |
a1f49e72 | 1940 | while (mark < SP) { |
a0d0e21e | 1941 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
1942 | TAINT_NOT; /* Each item is independent */ |
1943 | } | |
a0d0e21e | 1944 | } |
f86702cc | 1945 | SP = newsp; |
1946 | PUTBACK; | |
1947 | ||
a8bba7fa | 1948 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 1949 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 1950 | |
a0d0e21e LW |
1951 | LEAVE; |
1952 | LEAVE; | |
1953 | ||
f86702cc | 1954 | return NORMAL; |
a0d0e21e LW |
1955 | } |
1956 | ||
1957 | PP(pp_return) | |
1958 | { | |
27da23d5 | 1959 | dVAR; dSP; dMARK; |
c09156bb | 1960 | register PERL_CONTEXT *cx; |
f86702cc | 1961 | bool popsub2 = FALSE; |
b45de488 | 1962 | bool clear_errsv = FALSE; |
a0d0e21e LW |
1963 | I32 gimme; |
1964 | SV **newsp; | |
1965 | PMOP *newpm; | |
1966 | I32 optype = 0; | |
b0d9ce38 | 1967 | SV *sv; |
f39bc417 | 1968 | OP *retop; |
a0d0e21e | 1969 | |
0bd48802 AL |
1970 | const I32 cxix = dopoptosub(cxstack_ix); |
1971 | ||
9850bf21 RH |
1972 | if (cxix < 0) { |
1973 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
1974 | * sort block, which is a CXt_NULL | |
1975 | * not a CXt_SUB */ | |
1976 | dounwind(0); | |
d7507f74 RH |
1977 | PL_stack_base[1] = *PL_stack_sp; |
1978 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
1979 | return 0; |
1980 | } | |
9850bf21 RH |
1981 | else |
1982 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 1983 | } |
a0d0e21e LW |
1984 | if (cxix < cxstack_ix) |
1985 | dounwind(cxix); | |
1986 | ||
d7507f74 RH |
1987 | if (CxMULTICALL(&cxstack[cxix])) { |
1988 | gimme = cxstack[cxix].blk_gimme; | |
1989 | if (gimme == G_VOID) | |
1990 | PL_stack_sp = PL_stack_base; | |
1991 | else if (gimme == G_SCALAR) { | |
1992 | PL_stack_base[1] = *PL_stack_sp; | |
1993 | PL_stack_sp = PL_stack_base + 1; | |
1994 | } | |
9850bf21 | 1995 | return 0; |
d7507f74 | 1996 | } |
9850bf21 | 1997 | |
a0d0e21e | 1998 | POPBLOCK(cx,newpm); |
6b35e009 | 1999 | switch (CxTYPE(cx)) { |
a0d0e21e | 2000 | case CXt_SUB: |
f86702cc | 2001 | popsub2 = TRUE; |
f39bc417 | 2002 | retop = cx->blk_sub.retop; |
5dd42e15 | 2003 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2004 | break; |
2005 | case CXt_EVAL: | |
b45de488 GS |
2006 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2007 | clear_errsv = TRUE; | |
a0d0e21e | 2008 | POPEVAL(cx); |
f39bc417 | 2009 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2010 | if (CxTRYBLOCK(cx)) |
2011 | break; | |
067f92a0 | 2012 | lex_end(); |
748a9306 LW |
2013 | if (optype == OP_REQUIRE && |
2014 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2015 | { | |
54310121 | 2016 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2017 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2018 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
95b63a38 | 2019 | DIE(aTHX_ "%"SVf" did not return a true value", (void*)nsv); |
748a9306 | 2020 | } |
a0d0e21e | 2021 | break; |
7766f137 GS |
2022 | case CXt_FORMAT: |
2023 | POPFORMAT(cx); | |
f39bc417 | 2024 | retop = cx->blk_sub.retop; |
7766f137 | 2025 | break; |
a0d0e21e | 2026 | default: |
cea2e8a9 | 2027 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2028 | } |
2029 | ||
a1f49e72 | 2030 | TAINT_NOT; |
a0d0e21e | 2031 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2032 | if (MARK < SP) { |
2033 | if (popsub2) { | |
a8bba7fa | 2034 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2035 | if (SvTEMP(TOPs)) { |
2036 | *++newsp = SvREFCNT_inc(*SP); | |
2037 | FREETMPS; | |
2038 | sv_2mortal(*newsp); | |
959e3673 GS |
2039 | } |
2040 | else { | |
2041 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2042 | FREETMPS; |
959e3673 GS |
2043 | *++newsp = sv_mortalcopy(sv); |
2044 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2045 | } |
959e3673 GS |
2046 | } |
2047 | else | |
a29cdaf0 | 2048 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2049 | } |
2050 | else | |
a29cdaf0 | 2051 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2052 | } |
2053 | else | |
3280af22 | 2054 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2055 | } |
54310121 | 2056 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2057 | while (++MARK <= SP) { |
f86702cc | 2058 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2059 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2060 | TAINT_NOT; /* Each item is independent */ |
2061 | } | |
a0d0e21e | 2062 | } |
3280af22 | 2063 | PL_stack_sp = newsp; |
a0d0e21e | 2064 | |
5dd42e15 | 2065 | LEAVE; |
f86702cc | 2066 | /* Stack values are safe: */ |
2067 | if (popsub2) { | |
5dd42e15 | 2068 | cxstack_ix--; |
b0d9ce38 | 2069 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2070 | } |
b0d9ce38 | 2071 | else |
c445ea15 | 2072 | sv = NULL; |
3280af22 | 2073 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2074 | |
b0d9ce38 | 2075 | LEAVESUB(sv); |
b45de488 | 2076 | if (clear_errsv) |
c69006e4 | 2077 | sv_setpvn(ERRSV,"",0); |
f39bc417 | 2078 | return retop; |
a0d0e21e LW |
2079 | } |
2080 | ||
2081 | PP(pp_last) | |
2082 | { | |
27da23d5 | 2083 | dVAR; dSP; |
a0d0e21e | 2084 | I32 cxix; |
c09156bb | 2085 | register PERL_CONTEXT *cx; |
f86702cc | 2086 | I32 pop2 = 0; |
a0d0e21e | 2087 | I32 gimme; |
8772537c | 2088 | I32 optype; |
a0d0e21e LW |
2089 | OP *nextop; |
2090 | SV **newsp; | |
2091 | PMOP *newpm; | |
a8bba7fa | 2092 | SV **mark; |
c445ea15 | 2093 | SV *sv = NULL; |
9d4ba2ae | 2094 | |
a0d0e21e | 2095 | |
533c011a | 2096 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2097 | cxix = dopoptoloop(cxstack_ix); |
2098 | if (cxix < 0) | |
a651a37d | 2099 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2100 | } |
2101 | else { | |
2102 | cxix = dopoptolabel(cPVOP->op_pv); | |
2103 | if (cxix < 0) | |
cea2e8a9 | 2104 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2105 | } |
2106 | if (cxix < cxstack_ix) | |
2107 | dounwind(cxix); | |
2108 | ||
2109 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2110 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2111 | mark = newsp; |
6b35e009 | 2112 | switch (CxTYPE(cx)) { |
a0d0e21e | 2113 | case CXt_LOOP: |
f86702cc | 2114 | pop2 = CXt_LOOP; |
a8bba7fa GS |
2115 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
2116 | nextop = cx->blk_loop.last_op->op_next; | |
a0d0e21e | 2117 | break; |
f86702cc | 2118 | case CXt_SUB: |
f86702cc | 2119 | pop2 = CXt_SUB; |
f39bc417 | 2120 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2121 | break; |
f86702cc | 2122 | case CXt_EVAL: |
2123 | POPEVAL(cx); | |
f39bc417 | 2124 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2125 | break; |
7766f137 GS |
2126 | case CXt_FORMAT: |
2127 | POPFORMAT(cx); | |
f39bc417 | 2128 | nextop = cx->blk_sub.retop; |
7766f137 | 2129 | break; |
a0d0e21e | 2130 | default: |
cea2e8a9 | 2131 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2132 | } |
2133 | ||
a1f49e72 | 2134 | TAINT_NOT; |
a0d0e21e | 2135 | if (gimme == G_SCALAR) { |
f86702cc | 2136 | if (MARK < SP) |
2137 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2138 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2139 | else |
3280af22 | 2140 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2141 | } |
54310121 | 2142 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2143 | while (++MARK <= SP) { |
f86702cc | 2144 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2145 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2146 | TAINT_NOT; /* Each item is independent */ |
2147 | } | |
f86702cc | 2148 | } |
2149 | SP = newsp; | |
2150 | PUTBACK; | |
2151 | ||
5dd42e15 DM |
2152 | LEAVE; |
2153 | cxstack_ix--; | |
f86702cc | 2154 | /* Stack values are safe: */ |
2155 | switch (pop2) { | |
2156 | case CXt_LOOP: | |
a8bba7fa | 2157 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2158 | LEAVE; |
f86702cc | 2159 | break; |
2160 | case CXt_SUB: | |
b0d9ce38 | 2161 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2162 | break; |
a0d0e21e | 2163 | } |
3280af22 | 2164 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2165 | |
b0d9ce38 | 2166 | LEAVESUB(sv); |
9d4ba2ae AL |
2167 | PERL_UNUSED_VAR(optype); |
2168 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2169 | return nextop; |
a0d0e21e LW |
2170 | } |
2171 | ||
2172 | PP(pp_next) | |
2173 | { | |
27da23d5 | 2174 | dVAR; |
a0d0e21e | 2175 | I32 cxix; |
c09156bb | 2176 | register PERL_CONTEXT *cx; |
85538317 | 2177 | I32 inner; |
a0d0e21e | 2178 | |
533c011a | 2179 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2180 | cxix = dopoptoloop(cxstack_ix); |
2181 | if (cxix < 0) | |
a651a37d | 2182 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2183 | } |
2184 | else { | |
2185 | cxix = dopoptolabel(cPVOP->op_pv); | |
2186 | if (cxix < 0) | |
cea2e8a9 | 2187 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2188 | } |
2189 | if (cxix < cxstack_ix) | |
2190 | dounwind(cxix); | |
2191 | ||
85538317 GS |
2192 | /* clear off anything above the scope we're re-entering, but |
2193 | * save the rest until after a possible continue block */ | |
2194 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2195 | TOPBLOCK(cx); |
85538317 GS |
2196 | if (PL_scopestack_ix < inner) |
2197 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2198 | PL_curcop = cx->blk_oldcop; |
1ba6ee2b | 2199 | return cx->blk_loop.next_op; |
a0d0e21e LW |
2200 | } |
2201 | ||
2202 | PP(pp_redo) | |
2203 | { | |
27da23d5 | 2204 | dVAR; |
a0d0e21e | 2205 | I32 cxix; |
c09156bb | 2206 | register PERL_CONTEXT *cx; |
a0d0e21e | 2207 | I32 oldsave; |
a034e688 | 2208 | OP* redo_op; |
a0d0e21e | 2209 | |
533c011a | 2210 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2211 | cxix = dopoptoloop(cxstack_ix); |
2212 | if (cxix < 0) | |
a651a37d | 2213 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2214 | } |
2215 | else { | |
2216 | cxix = dopoptolabel(cPVOP->op_pv); | |
2217 | if (cxix < 0) | |
cea2e8a9 | 2218 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2219 | } |
2220 | if (cxix < cxstack_ix) | |
2221 | dounwind(cxix); | |
2222 | ||
a034e688 DM |
2223 | redo_op = cxstack[cxix].blk_loop.redo_op; |
2224 | if (redo_op->op_type == OP_ENTER) { | |
2225 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2226 | cxstack_ix++; | |
2227 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2228 | redo_op = redo_op->op_next; | |
2229 | } | |
2230 | ||
a0d0e21e | 2231 | TOPBLOCK(cx); |
3280af22 | 2232 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2233 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2234 | FREETMPS; |
3a1b2b9e | 2235 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2236 | return redo_op; |
a0d0e21e LW |
2237 | } |
2238 | ||
0824fdcb | 2239 | STATIC OP * |
bfed75c6 | 2240 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2241 | { |
97aff369 | 2242 | dVAR; |
a0d0e21e | 2243 | OP **ops = opstack; |
bfed75c6 | 2244 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2245 | |
fc36a67e | 2246 | if (ops >= oplimit) |
cea2e8a9 | 2247 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2248 | if (o->op_type == OP_LEAVE || |
2249 | o->op_type == OP_SCOPE || | |
2250 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2251 | o->op_type == OP_LEAVESUB || |
11343788 | 2252 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2253 | { |
5dc0d613 | 2254 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2255 | if (ops >= oplimit) |
cea2e8a9 | 2256 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2257 | } |
c4aa4e48 | 2258 | *ops = 0; |
11343788 | 2259 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2260 | OP *kid; |
a0d0e21e | 2261 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2262 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 GS |
2263 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
2264 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) | |
a0d0e21e LW |
2265 | return kid; |
2266 | } | |
11343788 | 2267 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2268 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2269 | continue; |
ed8d0fe2 SM |
2270 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2271 | if (ops == opstack) | |
2272 | *ops++ = kid; | |
2273 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2274 | ops[-1]->op_type == OP_DBSTATE) | |
2275 | ops[-1] = kid; | |
2276 | else | |
2277 | *ops++ = kid; | |
2278 | } | |
155aba94 | 2279 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2280 | return o; |
a0d0e21e LW |
2281 | } |
2282 | } | |
c4aa4e48 | 2283 | *ops = 0; |
a0d0e21e LW |
2284 | return 0; |
2285 | } | |
2286 | ||
a0d0e21e LW |
2287 | PP(pp_goto) |
2288 | { | |
27da23d5 | 2289 | dVAR; dSP; |
cbbf8932 | 2290 | OP *retop = NULL; |
a0d0e21e | 2291 | I32 ix; |
c09156bb | 2292 | register PERL_CONTEXT *cx; |
fc36a67e | 2293 | #define GOTO_DEPTH 64 |
2294 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2295 | const char *label = NULL; |
bfed75c6 AL |
2296 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2297 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2298 | |
533c011a | 2299 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2300 | SV * const sv = POPs; |
a0d0e21e LW |
2301 | |
2302 | /* This egregious kludge implements goto &subroutine */ | |
2303 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2304 | I32 cxix; | |
c09156bb | 2305 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2306 | CV* cv = (CV*)SvRV(sv); |
2307 | SV** mark; | |
2308 | I32 items = 0; | |
2309 | I32 oldsave; | |
b1464ded | 2310 | bool reified = 0; |
a0d0e21e | 2311 | |
e8f7dd13 | 2312 | retry: |
4aa0a1f7 | 2313 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2314 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2315 | if (gv) { |
7fc63493 | 2316 | GV *autogv; |
e8f7dd13 GS |
2317 | SV *tmpstr; |
2318 | /* autoloaded stub? */ | |
2319 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2320 | goto retry; | |
2321 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2322 | GvNAMELEN(gv), FALSE); | |
2323 | if (autogv && (cv = GvCV(autogv))) | |
2324 | goto retry; | |
2325 | tmpstr = sv_newmortal(); | |
c445ea15 | 2326 | gv_efullname3(tmpstr, gv, NULL); |
95b63a38 | 2327 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"",(void*)tmpstr); |
4aa0a1f7 | 2328 | } |
cea2e8a9 | 2329 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2330 | } |
2331 | ||
a0d0e21e | 2332 | /* First do some returnish stuff. */ |
b37c2d43 | 2333 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2334 | FREETMPS; |
a0d0e21e LW |
2335 | cxix = dopoptosub(cxstack_ix); |
2336 | if (cxix < 0) | |
cea2e8a9 | 2337 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2338 | if (cxix < cxstack_ix) |
2339 | dounwind(cxix); | |
2340 | TOPBLOCK(cx); | |
2d43a17f | 2341 | SPAGAIN; |
564abe23 | 2342 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2343 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2344 | if (CxREALEVAL(cx)) |
2345 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2346 | else | |
2347 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2348 | } |
9850bf21 RH |
2349 | else if (CxMULTICALL(cx)) |
2350 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
d8b46c1b GS |
2351 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) { |
2352 | /* put @_ back onto stack */ | |
a0d0e21e | 2353 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2354 | |
93965878 | 2355 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2356 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2357 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2358 | SvREFCNT_dec(GvAV(PL_defgv)); |
2359 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2360 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2361 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2362 | if (AvREAL(av)) { |
b1464ded DM |
2363 | reified = 1; |
2364 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2365 | av = newAV(); |
2366 | av_extend(av, items-1); | |
11ca45c0 | 2367 | AvREIFY_only(av); |
dd2155a4 | 2368 | PAD_SVl(0) = (SV*)(cx->blk_sub.argarray = av); |
62b1ebc2 | 2369 | } |
a0d0e21e | 2370 | } |
aed2304a | 2371 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2372 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2373 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2374 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2375 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2376 | } |
a45cdc79 DM |
2377 | mark = SP; |
2378 | SP += items; | |
6b35e009 | 2379 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2380 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2381 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2382 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2383 | LEAVE_SCOPE(oldsave); |
2384 | ||
2385 | /* Now do some callish stuff. */ | |
2386 | SAVETMPS; | |
5023d17a | 2387 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2388 | if (CvISXSUB(cv)) { |
b37c2d43 | 2389 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2390 | SV **newsp; |
2391 | I32 gimme; | |
b1464ded DM |
2392 | if (reified) { |
2393 | I32 index; | |
2394 | for (index=0; index<items; index++) | |
2395 | sv_2mortal(SP[-index]); | |
2396 | } | |
1fa4e549 | 2397 | |
b37c2d43 AL |
2398 | /* XS subs don't have a CxSUB, so pop it */ |
2399 | POPBLOCK(cx, PL_curpm); | |
2400 | /* Push a mark for the start of arglist */ | |
2401 | PUSHMARK(mark); | |
2402 | PUTBACK; | |
2403 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2404 | LEAVE; |
5eff7df7 | 2405 | return retop; |
a0d0e21e LW |
2406 | } |
2407 | else { | |
b37c2d43 | 2408 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2409 | if (CxTYPE(cx) == CXt_EVAL) { |
3280af22 NIS |
2410 | PL_in_eval = cx->blk_eval.old_in_eval; |
2411 | PL_eval_root = cx->blk_eval.old_eval_root; | |
b150fb22 RH |
2412 | cx->cx_type = CXt_SUB; |
2413 | cx->blk_sub.hasargs = 0; | |
2414 | } | |
a0d0e21e | 2415 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2416 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2417 | |
a0d0e21e LW |
2418 | CvDEPTH(cv)++; |
2419 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2420 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2421 | else { |
599cee73 | 2422 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION)) |
44a8e56a | 2423 | sub_crush_depth(cv); |
26019298 | 2424 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2425 | } |
fd617465 DM |
2426 | SAVECOMPPAD(); |
2427 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
6d4ff0d2 | 2428 | if (cx->blk_sub.hasargs) |
6d4ff0d2 | 2429 | { |
b37c2d43 | 2430 | AV* const av = (AV*)PAD_SVl(0); |
a0d0e21e | 2431 | |
3280af22 | 2432 | cx->blk_sub.savearray = GvAV(PL_defgv); |
b37c2d43 | 2433 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc_simple(av); |
dd2155a4 | 2434 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2435 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2436 | |
2437 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2438 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2439 | if (AvARRAY(av) != ary) { |
2440 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
f880fe2f | 2441 | SvPV_set(av, (char*)ary); |
a0d0e21e LW |
2442 | } |
2443 | if (items >= AvMAX(av) + 1) { | |
2444 | AvMAX(av) = items - 1; | |
2445 | Renew(ary,items+1,SV*); | |
2446 | AvALLOC(av) = ary; | |
f880fe2f | 2447 | SvPV_set(av, (char*)ary); |
a0d0e21e LW |
2448 | } |
2449 | } | |
a45cdc79 | 2450 | ++mark; |
a0d0e21e | 2451 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2452 | AvFILLp(av) = items - 1; |
d8b46c1b | 2453 | assert(!AvREAL(av)); |
b1464ded DM |
2454 | if (reified) { |
2455 | /* transfer 'ownership' of refcnts to new @_ */ | |
2456 | AvREAL_on(av); | |
2457 | AvREIFY_off(av); | |
2458 | } | |
a0d0e21e LW |
2459 | while (items--) { |
2460 | if (*mark) | |
2461 | SvTEMP_off(*mark); | |
2462 | mark++; | |
2463 | } | |
2464 | } | |
491527d0 | 2465 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
44a8e56a | 2466 | /* |
2467 | * We do not care about using sv to call CV; | |
2468 | * it's for informational purposes only. | |
2469 | */ | |
890ce7af | 2470 | SV * const sv = GvSV(PL_DBsub); |
f398eb67 | 2471 | save_item(sv); |
491527d0 | 2472 | if (PERLDB_SUB_NN) { |
890ce7af | 2473 | const int type = SvTYPE(sv); |
f398eb67 NC |
2474 | if (type < SVt_PVIV && type != SVt_IV) |
2475 | sv_upgrade(sv, SVt_PVIV); | |
7619c85e | 2476 | (void)SvIOK_on(sv); |
45977657 | 2477 | SvIV_set(sv, PTR2IV(cv)); /* Do it the quickest way */ |
491527d0 | 2478 | } else { |
c445ea15 | 2479 | gv_efullname3(sv, CvGV(cv), NULL); |
491527d0 | 2480 | } |
b37c2d43 AL |
2481 | if (PERLDB_GOTO) { |
2482 | CV * const gotocv = get_cv("DB::goto", FALSE); | |
2483 | if (gotocv) { | |
2484 | PUSHMARK( PL_stack_sp ); | |
2485 | call_sv((SV*)gotocv, G_SCALAR | G_NODEBUG); | |
2486 | PL_stack_sp--; | |
2487 | } | |
491527d0 | 2488 | } |
1ce6579f | 2489 | } |
a0d0e21e LW |
2490 | RETURNOP(CvSTART(cv)); |
2491 | } | |
2492 | } | |
1614b0e3 | 2493 | else { |
0510663f | 2494 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2495 | if (!(do_dump || *label)) |
cea2e8a9 | 2496 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2497 | } |
a0d0e21e | 2498 | } |
533c011a | 2499 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2500 | if (! do_dump) |
cea2e8a9 | 2501 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2502 | } |
2503 | else | |
2504 | label = cPVOP->op_pv; | |
2505 | ||
2506 | if (label && *label) { | |
cbbf8932 | 2507 | OP *gotoprobe = NULL; |
3b2447bc | 2508 | bool leaving_eval = FALSE; |
33d34e4c | 2509 | bool in_block = FALSE; |
cbbf8932 | 2510 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2511 | |
2512 | /* find label */ | |
2513 | ||
d4c19fe8 | 2514 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2515 | *enterops = 0; |
2516 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2517 | cx = &cxstack[ix]; | |
6b35e009 | 2518 | switch (CxTYPE(cx)) { |
a0d0e21e | 2519 | case CXt_EVAL: |
3b2447bc | 2520 | leaving_eval = TRUE; |
971ecbe6 | 2521 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2522 | gotoprobe = (last_eval_cx ? |
2523 | last_eval_cx->blk_eval.old_eval_root : | |
2524 | PL_eval_root); | |
2525 | last_eval_cx = cx; | |
9c5794fe RH |
2526 | break; |
2527 | } | |
2528 | /* else fall through */ | |
a0d0e21e LW |
2529 | case CXt_LOOP: |
2530 | gotoprobe = cx->blk_oldcop->op_sibling; | |
2531 | break; | |
2532 | case CXt_SUBST: | |
2533 | continue; | |
2534 | case CXt_BLOCK: | |
33d34e4c | 2535 | if (ix) { |
a0d0e21e | 2536 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2537 | in_block = TRUE; |
2538 | } else | |
3280af22 | 2539 | gotoprobe = PL_main_root; |
a0d0e21e | 2540 | break; |
b3933176 | 2541 | case CXt_SUB: |
9850bf21 | 2542 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2543 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2544 | break; | |
2545 | } | |
2546 | /* FALL THROUGH */ | |
7766f137 | 2547 | case CXt_FORMAT: |
0a753a76 | 2548 | case CXt_NULL: |
a651a37d | 2549 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2550 | default: |
2551 | if (ix) | |
cea2e8a9 | 2552 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2553 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2554 | break; |
2555 | } | |
2b597662 GS |
2556 | if (gotoprobe) { |
2557 | retop = dofindlabel(gotoprobe, label, | |
2558 | enterops, enterops + GOTO_DEPTH); | |
2559 | if (retop) | |
2560 | break; | |
2561 | } | |
3280af22 | 2562 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2563 | } |
2564 | if (!retop) | |
cea2e8a9 | 2565 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2566 | |
3b2447bc RH |
2567 | /* if we're leaving an eval, check before we pop any frames |
2568 | that we're not going to punt, otherwise the error | |
2569 | won't be caught */ | |
2570 | ||
2571 | if (leaving_eval && *enterops && enterops[1]) { | |
2572 | I32 i; | |
2573 | for (i = 1; enterops[i]; i++) | |
2574 | if (enterops[i]->op_type == OP_ENTERITER) | |
2575 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2576 | } | |
2577 | ||
a0d0e21e LW |
2578 | /* pop unwanted frames */ |
2579 | ||
2580 | if (ix < cxstack_ix) { | |
2581 | I32 oldsave; | |
2582 | ||
2583 | if (ix < 0) | |
2584 | ix = 0; | |
2585 | dounwind(ix); | |
2586 | TOPBLOCK(cx); | |
3280af22 | 2587 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2588 | LEAVE_SCOPE(oldsave); |
2589 | } | |
2590 | ||
2591 | /* push wanted frames */ | |
2592 | ||
748a9306 | 2593 | if (*enterops && enterops[1]) { |
0bd48802 | 2594 | OP * const oldop = PL_op; |
33d34e4c AE |
2595 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2596 | for (; enterops[ix]; ix++) { | |
533c011a | 2597 | PL_op = enterops[ix]; |
84902520 TB |
2598 | /* Eventually we may want to stack the needed arguments |
2599 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2600 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2601 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2602 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2603 | } |
533c011a | 2604 | PL_op = oldop; |
a0d0e21e LW |
2605 | } |
2606 | } | |
2607 | ||
2608 | if (do_dump) { | |
a5f75d66 | 2609 | #ifdef VMS |
6b88bc9c | 2610 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2611 | #endif |
3280af22 NIS |
2612 | PL_restartop = retop; |
2613 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2614 | |
2615 | my_unexec(); | |
2616 | ||
3280af22 NIS |
2617 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2618 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2619 | } |
2620 | ||
2621 | RETURNOP(retop); | |
2622 | } | |
2623 | ||
2624 | PP(pp_exit) | |
2625 | { | |
97aff369 | 2626 | dVAR; |
39644a26 | 2627 | dSP; |
a0d0e21e LW |
2628 | I32 anum; |
2629 | ||
2630 | if (MAXARG < 1) | |
2631 | anum = 0; | |
ff0cee69 | 2632 | else { |
a0d0e21e | 2633 | anum = SvIVx(POPs); |
d98f61e7 GS |
2634 | #ifdef VMS |
2635 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2636 | anum = 0; |
96e176bf | 2637 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2638 | #endif |
2639 | } | |
cc3604b1 | 2640 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2641 | #ifdef PERL_MAD |
2642 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2643 | if (anum || !(PL_minus_c && PL_madskills)) | |
2644 | my_exit(anum); | |
2645 | #else | |
a0d0e21e | 2646 | my_exit(anum); |
81d86705 | 2647 | #endif |
3280af22 | 2648 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2649 | RETURN; |
2650 | } | |
2651 | ||
a0d0e21e LW |
2652 | /* Eval. */ |
2653 | ||
0824fdcb | 2654 | STATIC void |
cea2e8a9 | 2655 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2656 | { |
504618e9 | 2657 | const char *s = SvPVX_const(sv); |
890ce7af | 2658 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2659 | I32 line = 1; |
a0d0e21e LW |
2660 | |
2661 | while (s && s < send) { | |
f54cb97a | 2662 | const char *t; |
561b68a9 | 2663 | SV * const tmpstr = newSV(0); |
a0d0e21e LW |
2664 | |
2665 | sv_upgrade(tmpstr, SVt_PVMG); | |
2666 | t = strchr(s, '\n'); | |
2667 | if (t) | |
2668 | t++; | |
2669 | else | |
2670 | t = send; | |
2671 | ||
2672 | sv_setpvn(tmpstr, s, t - s); | |
2673 | av_store(array, line++, tmpstr); | |
2674 | s = t; | |
2675 | } | |
2676 | } | |
2677 | ||
901017d6 | 2678 | STATIC void |
14dd3ad8 GS |
2679 | S_docatch_body(pTHX) |
2680 | { | |
97aff369 | 2681 | dVAR; |
cea2e8a9 | 2682 | CALLRUNOPS(aTHX); |
901017d6 | 2683 | return; |
312caa8e CS |
2684 | } |
2685 | ||
0824fdcb | 2686 | STATIC OP * |
cea2e8a9 | 2687 | S_docatch(pTHX_ OP *o) |
1e422769 | 2688 | { |
97aff369 | 2689 | dVAR; |
6224f72b | 2690 | int ret; |
06b5626a | 2691 | OP * const oldop = PL_op; |
db36c5a1 | 2692 | dJMPENV; |
1e422769 | 2693 | |
1e422769 | 2694 | #ifdef DEBUGGING |
54310121 | 2695 | assert(CATCH_GET == TRUE); |
1e422769 | 2696 | #endif |
312caa8e | 2697 | PL_op = o; |
8bffa5f8 | 2698 | |
14dd3ad8 | 2699 | JMPENV_PUSH(ret); |
6224f72b | 2700 | switch (ret) { |
312caa8e | 2701 | case 0: |
abd70938 DM |
2702 | assert(cxstack_ix >= 0); |
2703 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2704 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 GS |
2705 | redo_body: |
2706 | docatch_body(); | |
312caa8e CS |
2707 | break; |
2708 | case 3: | |
8bffa5f8 | 2709 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2710 | |
2711 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2712 | * of the stack; the way die_where() currently works, this | |
2713 | * assumption is valid. In theory The cur_top_env value should be | |
2714 | * returned in another global, the way retop (aka PL_restartop) | |
2715 | * is. */ | |
2716 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2717 | ||
2718 | if (PL_restartop | |
2719 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2720 | { | |
312caa8e CS |
2721 | PL_op = PL_restartop; |
2722 | PL_restartop = 0; | |
2723 | goto redo_body; | |
2724 | } | |
2725 | /* FALL THROUGH */ | |
2726 | default: | |
14dd3ad8 | 2727 | JMPENV_POP; |
533c011a | 2728 | PL_op = oldop; |
6224f72b | 2729 | JMPENV_JUMP(ret); |
1e422769 | 2730 | /* NOTREACHED */ |
1e422769 | 2731 | } |
14dd3ad8 | 2732 | JMPENV_POP; |
533c011a | 2733 | PL_op = oldop; |
5f66b61c | 2734 | return NULL; |
1e422769 | 2735 | } |
2736 | ||
c277df42 | 2737 | OP * |
bfed75c6 | 2738 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2739 | /* sv Text to convert to OP tree. */ |
2740 | /* startop op_free() this to undo. */ | |
2741 | /* code Short string id of the caller. */ | |
2742 | { | |
f7997f86 | 2743 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2744 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2745 | PERL_CONTEXT *cx; |
2746 | SV **newsp; | |
b094c71d | 2747 | I32 gimme = G_VOID; |
c277df42 IZ |
2748 | I32 optype; |
2749 | OP dummy; | |
155aba94 | 2750 | OP *rop; |
83ee9e09 GS |
2751 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2752 | char *tmpbuf = tbuf; | |
c277df42 | 2753 | char *safestr; |
a3985cdc | 2754 | int runtime; |
601f1833 | 2755 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2756 | STRLEN len; |
c277df42 IZ |
2757 | |
2758 | ENTER; | |
2759 | lex_start(sv); | |
2760 | SAVETMPS; | |
2761 | /* switch to eval mode */ | |
2762 | ||
923e4eb5 | 2763 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2764 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2765 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2766 | } |
83ee9e09 | 2767 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2768 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2769 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2770 | code, (unsigned long)++PL_evalseq, | |
2771 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2772 | tmpbuf = SvPVX(sv); | |
fc009855 | 2773 | len = SvCUR(sv); |
83ee9e09 GS |
2774 | } |
2775 | else | |
e80fed9d JH |
2776 | #ifdef USE_SNPRINTF |
2777 | len = snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, | |
2778 | (unsigned long)++PL_evalseq); | |
2779 | #else | |
fc009855 NC |
2780 | len = my_sprintf(tmpbuf, "_<(%.10s_eval %lu)", code, |
2781 | (unsigned long)++PL_evalseq); | |
e80fed9d | 2782 | #endif /* ifdef USE_SNPRINTF */ |
f4dd75d9 | 2783 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2784 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2785 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2786 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2787 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2788 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2789 | (i.e. before run-time proper). To work around the coredump that | |
2790 | ensues, we always turn GvMULTI_on for any globals that were | |
2791 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2792 | safestr = savepvn(tmpbuf, len); |
2793 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2794 | SAVEHINTS(); |
d1ca3daa | 2795 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2796 | PL_opsave = op; |
d1ca3daa | 2797 | #else |
7766f137 | 2798 | SAVEVPTR(PL_op); |
d1ca3daa | 2799 | #endif |
c277df42 | 2800 | |
a3985cdc | 2801 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2802 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2803 | if (runtime) |
d819b83a | 2804 | runcv = find_runcv(NULL); |
a3985cdc | 2805 | |
533c011a | 2806 | PL_op = &dummy; |
13b51b79 | 2807 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2808 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2809 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
a0714e2c | 2810 | PUSHEVAL(cx, 0, NULL); |
a3985cdc DM |
2811 | |
2812 | if (runtime) | |
2813 | rop = doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); | |
2814 | else | |
2815 | rop = doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); | |
13b51b79 | 2816 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2817 | POPEVAL(cx); |
c277df42 IZ |
2818 | |
2819 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2820 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2821 | lex_end(); |
f3548bdc | 2822 | /* XXX DAPM do this properly one year */ |
b37c2d43 | 2823 | *padp = (AV*)SvREFCNT_inc_simple(PL_comppad); |
c277df42 | 2824 | LEAVE; |
923e4eb5 | 2825 | if (IN_PERL_COMPILETIME) |
623e6609 | 2826 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2827 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2828 | op = PL_opsave; |
d1ca3daa | 2829 | #endif |
9d4ba2ae AL |
2830 | PERL_UNUSED_VAR(newsp); |
2831 | PERL_UNUSED_VAR(optype); | |
2832 | ||
c277df42 IZ |
2833 | return rop; |
2834 | } | |
2835 | ||
a3985cdc DM |
2836 | |
2837 | /* | |
2838 | =for apidoc find_runcv | |
2839 | ||
2840 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2841 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2842 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2843 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2844 | than in the scope of the debugger itself). |
a3985cdc DM |
2845 | |
2846 | =cut | |
2847 | */ | |
2848 | ||
2849 | CV* | |
d819b83a | 2850 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2851 | { |
97aff369 | 2852 | dVAR; |
a3985cdc | 2853 | PERL_SI *si; |
a3985cdc | 2854 | |
d819b83a DM |
2855 | if (db_seqp) |
2856 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2857 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2858 | I32 ix; |
a3985cdc | 2859 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2860 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2861 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2862 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2863 | /* skip DB:: code */ |
2864 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2865 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2866 | continue; | |
2867 | } | |
2868 | return cv; | |
2869 | } | |
a3985cdc DM |
2870 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2871 | return PL_compcv; | |
2872 | } | |
2873 | } | |
2874 | return PL_main_cv; | |
2875 | } | |
2876 | ||
2877 | ||
2878 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2879 | * In the last case, startop is non-null, and contains the address of | |
2880 | * a pointer that should be set to the just-compiled code. | |
2881 | * outside is the lexically enclosing CV (if any) that invoked us. | |
2882 | */ | |
2883 | ||
4d1ff10f | 2884 | /* With USE_5005THREADS, eval_owner must be held on entry to doeval */ |
0824fdcb | 2885 | STATIC OP * |
a3985cdc | 2886 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 2887 | { |
27da23d5 | 2888 | dVAR; dSP; |
46c461b5 | 2889 | OP * const saveop = PL_op; |
a0d0e21e | 2890 | |
6dc8a9e4 IZ |
2891 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
2892 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
2893 | : EVAL_INEVAL); | |
a0d0e21e | 2894 | |
1ce6579f | 2895 | PUSHMARK(SP); |
2896 | ||
3280af22 | 2897 | SAVESPTR(PL_compcv); |
561b68a9 | 2898 | PL_compcv = (CV*)newSV(0); |
3280af22 | 2899 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
1aff0e91 | 2900 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
2901 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
2902 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
2903 | ||
a3985cdc | 2904 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
b37c2d43 | 2905 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outside); |
a3985cdc | 2906 | |
dd2155a4 | 2907 | /* set up a scratch pad */ |
a0d0e21e | 2908 | |
dd2155a4 | 2909 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 2910 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 2911 | |
07055b4c | 2912 | |
81d86705 NC |
2913 | if (!PL_madskills) |
2914 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 2915 | |
a0d0e21e LW |
2916 | /* make sure we compile in the right package */ |
2917 | ||
ed094faf | 2918 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 2919 | SAVESPTR(PL_curstash); |
ed094faf | 2920 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 2921 | } |
3280af22 NIS |
2922 | SAVESPTR(PL_beginav); |
2923 | PL_beginav = newAV(); | |
2924 | SAVEFREESV(PL_beginav); | |
24944567 | 2925 | SAVEI32(PL_error_count); |
a0d0e21e | 2926 | |
81d86705 NC |
2927 | #ifdef PERL_MAD |
2928 | SAVEI32(PL_madskills); | |
2929 | PL_madskills = 0; | |
2930 | #endif | |
2931 | ||
a0d0e21e LW |
2932 | /* try to compile it */ |
2933 | ||
5f66b61c | 2934 | PL_eval_root = NULL; |
3280af22 NIS |
2935 | PL_error_count = 0; |
2936 | PL_curcop = &PL_compiling; | |
fc15ae8f | 2937 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 2938 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 2939 | PL_in_eval |= EVAL_KEEPERR; |
1ce6579f | 2940 | else |
c69006e4 | 2941 | sv_setpvn(ERRSV,"",0); |
3280af22 | 2942 | if (yyparse() || PL_error_count || !PL_eval_root) { |
0c58d367 | 2943 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 2944 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 2945 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 2946 | const char *msg; |
bfed75c6 | 2947 | |
533c011a | 2948 | PL_op = saveop; |
3280af22 NIS |
2949 | if (PL_eval_root) { |
2950 | op_free(PL_eval_root); | |
5f66b61c | 2951 | PL_eval_root = NULL; |
a0d0e21e | 2952 | } |
3280af22 | 2953 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 2954 | if (!startop) { |
3280af22 | 2955 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2956 | POPEVAL(cx); |
c277df42 | 2957 | } |
a0d0e21e LW |
2958 | lex_end(); |
2959 | LEAVE; | |
9d4ba2ae AL |
2960 | |
2961 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 2962 | if (optype == OP_REQUIRE) { |
b464bac0 | 2963 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 2964 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 2965 | &PL_sv_undef, 0); |
5a844595 GS |
2966 | DIE(aTHX_ "%sCompilation failed in require", |
2967 | *msg ? msg : "Unknown error\n"); | |
2968 | } | |
2969 | else if (startop) { | |
3280af22 | 2970 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2971 | POPEVAL(cx); |
5a844595 GS |
2972 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
2973 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 2974 | } |
9d7f88dd | 2975 | else { |
9d7f88dd SR |
2976 | if (!*msg) { |
2977 | sv_setpv(ERRSV, "Compilation error"); | |
2978 | } | |
2979 | } | |
9d4ba2ae | 2980 | PERL_UNUSED_VAR(newsp); |
a0d0e21e LW |
2981 | RETPUSHUNDEF; |
2982 | } | |
57843af0 | 2983 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 2984 | if (startop) { |
3280af22 | 2985 | *startop = PL_eval_root; |
c277df42 | 2986 | } else |
3280af22 | 2987 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
2988 | |
2989 | /* Set the context for this new optree. | |
2990 | * If the last op is an OP_REQUIRE, force scalar context. | |
2991 | * Otherwise, propagate the context from the eval(). */ | |
2992 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
2993 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
2994 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
2995 | == OP_REQUIRE) | |
2996 | scalar(PL_eval_root); | |
2997 | else if (gimme & G_VOID) | |
3280af22 | 2998 | scalarvoid(PL_eval_root); |
54310121 | 2999 | else if (gimme & G_ARRAY) |
3280af22 | 3000 | list(PL_eval_root); |
a0d0e21e | 3001 | else |
3280af22 | 3002 | scalar(PL_eval_root); |
a0d0e21e LW |
3003 | |
3004 | DEBUG_x(dump_eval()); | |
3005 | ||
55497cff | 3006 | /* Register with debugger: */ |
6482a30d | 3007 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
890ce7af | 3008 | CV * const cv = get_cv("DB::postponed", FALSE); |
55497cff | 3009 | if (cv) { |
3010 | dSP; | |
924508f0 | 3011 | PUSHMARK(SP); |
cc49e20b | 3012 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
55497cff | 3013 | PUTBACK; |
864dbfa3 | 3014 | call_sv((SV*)cv, G_DISCARD); |
55497cff | 3015 | } |
3016 | } | |
3017 | ||
a0d0e21e LW |
3018 | /* compiled okay, so do it */ |
3019 | ||
3280af22 NIS |
3020 | CvDEPTH(PL_compcv) = 1; |
3021 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3022 | PL_op = saveop; /* The caller may need it. */ |
6dc8a9e4 | 3023 | PL_lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3024 | |
3280af22 | 3025 | RETURNOP(PL_eval_start); |
a0d0e21e LW |
3026 | } |
3027 | ||
a6c40364 | 3028 | STATIC PerlIO * |
74d5ed12 | 3029 | S_check_type_and_open(pTHX_ const char *name, const char *mode) |
ce8abf5f SP |
3030 | { |
3031 | Stat_t st; | |
c445ea15 | 3032 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3033 | |
6b845e56 | 3034 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3035 | return NULL; |
ce8abf5f SP |
3036 | } |
3037 | ||
ce8abf5f SP |
3038 | return PerlIO_open(name, mode); |
3039 | } | |
3040 | ||
3041 | STATIC PerlIO * | |
7925835c | 3042 | S_doopen_pm(pTHX_ const char *name, const char *mode) |
b295d113 | 3043 | { |
7925835c | 3044 | #ifndef PERL_DISABLE_PMC |
f54cb97a | 3045 | const STRLEN namelen = strlen(name); |
b295d113 TH |
3046 | PerlIO *fp; |
3047 | ||
7894fbab | 3048 | if (namelen > 3 && strEQ(name + namelen - 3, ".pm")) { |
9d4ba2ae | 3049 | SV * const pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c'); |
349d4f2f | 3050 | const char * const pmc = SvPV_nolen_const(pmcsv); |
a6c40364 GS |
3051 | Stat_t pmcstat; |
3052 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { | |
85e8f315 | 3053 | fp = check_type_and_open(name, mode); |
a6c40364 GS |
3054 | } |
3055 | else { | |
a91233bf | 3056 | fp = check_type_and_open(pmc, mode); |
b295d113 | 3057 | } |
a6c40364 GS |
3058 | SvREFCNT_dec(pmcsv); |
3059 | } | |
3060 | else { | |
85e8f315 | 3061 | fp = check_type_and_open(name, mode); |
b295d113 | 3062 | } |
b295d113 | 3063 | return fp; |
7925835c | 3064 | #else |
85e8f315 | 3065 | return check_type_and_open(name, mode); |
7925835c | 3066 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 TH |
3067 | } |
3068 | ||
a0d0e21e LW |
3069 | PP(pp_require) |
3070 | { | |
27da23d5 | 3071 | dVAR; dSP; |
c09156bb | 3072 | register PERL_CONTEXT *cx; |
a0d0e21e | 3073 | SV *sv; |
5c144d81 | 3074 | const char *name; |
6132ea6c | 3075 | STRLEN len; |
c445ea15 AL |
3076 | const char *tryname = NULL; |
3077 | SV *namesv = NULL; | |
f54cb97a | 3078 | const I32 gimme = GIMME_V; |
bbed91b5 | 3079 | int filter_has_file = 0; |
c445ea15 | 3080 | PerlIO *tryrsfp = NULL; |
34113e50 | 3081 | SV *filter_cache = NULL; |
c445ea15 AL |
3082 | SV *filter_state = NULL; |
3083 | SV *filter_sub = NULL; | |
3084 | SV *hook_sv = NULL; | |
6ec9efec JH |
3085 | SV *encoding; |
3086 | OP *op; | |
a0d0e21e LW |
3087 | |
3088 | sv = POPs; | |
d7aa5382 JP |
3089 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
3090 | if ( SvVOK(sv) && ckWARN(WARN_PORTABLE) ) /* require v5.6.1 */ | |
9014280d | 3091 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
e3407aba | 3092 | "v-string in use/require non-portable"); |
d7aa5382 JP |
3093 | |
3094 | sv = new_version(sv); | |
3095 | if (!sv_derived_from(PL_patchlevel, "version")) | |
2593c6c6 | 3096 | upg_version(PL_patchlevel); |
149c1637 | 3097 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
468aa647 RGS |
3098 | if ( vcmp(sv,PL_patchlevel) < 0 ) |
3099 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", | |
95b63a38 | 3100 | (void*)vnormal(sv), (void*)vnormal(PL_patchlevel)); |
468aa647 RGS |
3101 | } |
3102 | else { | |
3103 | if ( vcmp(sv,PL_patchlevel) > 0 ) | |
3104 | DIE(aTHX_ "Perl %"SVf" required--this is only %"SVf", stopped", | |
95b63a38 | 3105 | (void*)vnormal(sv), (void*)vnormal(PL_patchlevel)); |
468aa647 | 3106 | } |
d7aa5382 | 3107 | |
4305d8ab | 3108 | RETPUSHYES; |
a0d0e21e | 3109 | } |
5c144d81 | 3110 | name = SvPV_const(sv, len); |
6132ea6c | 3111 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3112 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3113 | TAINT_PROPER("require"); |
44f8325f | 3114 | if (PL_op->op_type == OP_REQUIRE) { |
0bd48802 | 3115 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); |
44f8325f AL |
3116 | if ( svp ) { |
3117 | if (*svp != &PL_sv_undef) | |
3118 | RETPUSHYES; | |
3119 | else | |
3120 | DIE(aTHX_ "Compilation failed in require"); | |
3121 | } | |
4d8b06f1 | 3122 | } |
a0d0e21e LW |
3123 | |
3124 | /* prepare to compile file */ | |
3125 | ||
be4b629d | 3126 | if (path_is_absolute(name)) { |
46fc3d4c | 3127 | tryname = name; |
7925835c | 3128 | tryrsfp = doopen_pm(name,PERL_SCRIPT_MODE); |
bf4acbe4 | 3129 | } |
67627c52 JH |
3130 | #ifdef MACOS_TRADITIONAL |
3131 | if (!tryrsfp) { | |
3132 | char newname[256]; | |
3133 | ||
3134 | MacPerl_CanonDir(name, newname, 1); | |
3135 | if (path_is_absolute(newname)) { | |
3136 | tryname = newname; | |
7925835c | 3137 | tryrsfp = doopen_pm(newname,PERL_SCRIPT_MODE); |
67627c52 JH |
3138 | } |
3139 | } | |
3140 | #endif | |
be4b629d | 3141 | if (!tryrsfp) { |
44f8325f | 3142 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3143 | I32 i; |
748a9306 | 3144 | #ifdef VMS |
46fc3d4c | 3145 | char *unixname; |
c445ea15 | 3146 | if ((unixname = tounixspec(name, NULL)) != NULL) |
46fc3d4c | 3147 | #endif |
3148 | { | |
561b68a9 | 3149 | namesv = newSV(0); |
46fc3d4c | 3150 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3151 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 KF |
3152 | |
3153 | if (SvROK(dirsv)) { | |
3154 | int count; | |
3155 | SV *loader = dirsv; | |
3156 | ||
e14e2dc8 NC |
3157 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3158 | && !sv_isobject(loader)) | |
3159 | { | |
bbed91b5 KF |
3160 | loader = *av_fetch((AV *)SvRV(loader), 0, TRUE); |
3161 | } | |
3162 | ||
b900a521 | 3163 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3164 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3165 | tryname = SvPVX_const(namesv); |
c445ea15 | 3166 | tryrsfp = NULL; |
bbed91b5 KF |
3167 | |
3168 | ENTER; | |
3169 | SAVETMPS; | |
3170 | EXTEND(SP, 2); | |
3171 | ||
3172 | PUSHMARK(SP); | |
3173 | PUSHs(dirsv); | |
3174 | PUSHs(sv); | |
3175 | PUTBACK; | |
e982885c NC |
3176 | if (sv_isobject(loader)) |
3177 | count = call_method("INC", G_ARRAY); | |
3178 | else | |
3179 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3180 | SPAGAIN; |
3181 | ||
3182 | if (count > 0) { | |
3183 | int i = 0; | |
3184 | SV *arg; | |
3185 | ||
3186 | SP -= count - 1; | |
3187 | arg = SP[i++]; | |
3188 | ||
34113e50 NC |
3189 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3190 | && !isGV_with_GP(SvRV(arg))) { | |
3191 | filter_cache = SvRV(arg); | |
74c765eb | 3192 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3193 | |
3194 | if (i < count) { | |
3195 | arg = SP[i++]; | |
3196 | } | |
3197 | } | |
3198 | ||
bbed91b5 KF |
3199 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVGV) { |
3200 | arg = SvRV(arg); | |
3201 | } | |
3202 | ||
3203 | if (SvTYPE(arg) == SVt_PVGV) { | |
df528165 | 3204 | IO * const io = GvIO((GV *)arg); |
bbed91b5 KF |
3205 | |
3206 | ++filter_has_file; | |
3207 | ||
3208 | if (io) { | |
3209 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3210 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3211 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3212 | } |
0f7de14d NC |
3213 | IoIFP(io) = NULL; |
3214 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3215 | } |
3216 | ||
3217 | if (i < count) { | |
3218 | arg = SP[i++]; | |
3219 | } | |
3220 | } | |
3221 | ||
3222 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3223 | filter_sub = arg; | |
74c765eb | 3224 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3225 | |
3226 | if (i < count) { | |
3227 | filter_state = SP[i]; | |
b37c2d43 | 3228 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3229 | } |
34113e50 | 3230 | } |
bbed91b5 | 3231 | |
34113e50 NC |
3232 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3233 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3234 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3235 | } |
1d06aecd | 3236 | SP--; |
bbed91b5 KF |
3237 | } |
3238 | ||
3239 | PUTBACK; | |
3240 | FREETMPS; | |
3241 | LEAVE; | |
3242 | ||
3243 | if (tryrsfp) { | |
89ccab8c | 3244 | hook_sv = dirsv; |
bbed91b5 KF |
3245 | break; |
3246 | } | |
3247 | ||
3248 | filter_has_file = 0; | |
34113e50 NC |
3249 | if (filter_cache) { |
3250 | SvREFCNT_dec(filter_cache); | |
3251 | filter_cache = NULL; | |
3252 | } | |
bbed91b5 KF |
3253 | if (filter_state) { |
3254 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3255 | filter_state = NULL; |
bbed91b5 KF |
3256 | } |
3257 | if (filter_sub) { | |
3258 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3259 | filter_sub = NULL; |
bbed91b5 KF |
3260 | } |
3261 | } | |
3262 | else { | |
be4b629d CN |
3263 | if (!path_is_absolute(name) |
3264 | #ifdef MACOS_TRADITIONAL | |
3265 | /* We consider paths of the form :a:b ambiguous and interpret them first | |
3266 | as global then as local | |
3267 | */ | |
3268 | || (*name == ':' && name[1] != ':' && strchr(name+2, ':')) | |
3269 | #endif | |
3270 | ) { | |
0510663f | 3271 | const char *dir = SvPVx_nolen_const(dirsv); |
bf4acbe4 | 3272 | #ifdef MACOS_TRADITIONAL |
67627c52 JH |
3273 | char buf1[256]; |
3274 | char buf2[256]; | |
3275 | ||
3276 | MacPerl_CanonDir(name, buf2, 1); | |
3277 | Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':')); | |
bf4acbe4 | 3278 | #else |
27da23d5 | 3279 | # ifdef VMS |
bbed91b5 | 3280 | char *unixdir; |
c445ea15 | 3281 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3282 | continue; |
3283 | sv_setpv(namesv, unixdir); | |
3284 | sv_catpv(namesv, unixname); | |
27da23d5 | 3285 | # else |
a0fd4948 | 3286 | # ifdef __SYMBIAN32__ |
27da23d5 JH |
3287 | if (PL_origfilename[0] && |
3288 | PL_origfilename[1] == ':' && | |
3289 | !(dir[0] && dir[1] == ':')) | |
3290 | Perl_sv_setpvf(aTHX_ namesv, | |
3291 | "%c:%s\\%s", | |
3292 | PL_origfilename[0], | |
3293 | dir, name); | |
3294 | else | |
3295 | Perl_sv_setpvf(aTHX_ namesv, | |
3296 | "%s\\%s", | |
3297 | dir, name); | |
3298 | # else | |
bbed91b5 | 3299 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); |
27da23d5 JH |
3300 | # endif |
3301 | # endif | |
bf4acbe4 | 3302 | #endif |
bbed91b5 | 3303 | TAINT_PROPER("require"); |
349d4f2f | 3304 | tryname = SvPVX_const(namesv); |
7925835c | 3305 | tryrsfp = doopen_pm(tryname, PERL_SCRIPT_MODE); |
bbed91b5 KF |
3306 | if (tryrsfp) { |
3307 | if (tryname[0] == '.' && tryname[1] == '/') | |
3308 | tryname += 2; | |
3309 | break; | |
3310 | } | |
be4b629d | 3311 | } |
46fc3d4c | 3312 | } |
a0d0e21e LW |
3313 | } |
3314 | } | |
3315 | } | |
f4dd75d9 | 3316 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3317 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3318 | SvREFCNT_dec(namesv); |
a0d0e21e | 3319 | if (!tryrsfp) { |
533c011a | 3320 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3321 | const char *msgstr = name; |
e31de809 | 3322 | if(errno == EMFILE) { |
b9b739dc NC |
3323 | SV * const msg |
3324 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3325 | Strerror(errno))); | |
349d4f2f | 3326 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3327 | } else { |
3328 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3329 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3330 | I32 i; |
b8f04b1b NC |
3331 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3332 | "%s in @INC%s%s (@INC contains:", | |
3333 | msgstr, | |
3334 | (instr(msgstr, ".h ") | |
3335 | ? " (change .h to .ph maybe?)" : ""), | |
3336 | (instr(msgstr, ".ph ") | |
3337 | ? " (did you run h2ph?)" : "") | |
3338 | )); | |
3339 | ||
e31de809 | 3340 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3341 | sv_catpvs(msg, " "); |
b8f04b1b | 3342 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3343 | } |
396482e1 | 3344 | sv_catpvs(msg, ")"); |
e31de809 SP |
3345 | msgstr = SvPV_nolen_const(msg); |
3346 | } | |
2683423c | 3347 | } |
ea071790 | 3348 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3349 | } |
3350 | ||
3351 | RETPUSHUNDEF; | |
3352 | } | |
d8bfb8bd | 3353 | else |
93189314 | 3354 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3355 | |
3356 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3357 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3358 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f AL |
3359 | if (!hook_sv) { |
3360 | (void)hv_store(GvHVn(PL_incgv), name, len, newSVpv(CopFILE(&PL_compiling),0),0); | |
3361 | } else { | |
3362 | SV** const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3363 | if (!svp) | |
b37c2d43 | 3364 | (void)hv_store(GvHVn(PL_incgv), name, len, SvREFCNT_inc_simple(hook_sv), 0 ); |
d3a4e64e | 3365 | } |
a0d0e21e LW |
3366 | |
3367 | ENTER; | |
3368 | SAVETMPS; | |
396482e1 | 3369 | lex_start(sv_2mortal(newSVpvs(""))); |
b9d12d37 | 3370 | SAVEGENERICSV(PL_rsfp_filters); |
7d49f689 | 3371 | PL_rsfp_filters = NULL; |
e50aee73 | 3372 | |
3280af22 | 3373 | PL_rsfp = tryrsfp; |
b3ac6de7 | 3374 | SAVEHINTS(); |
3280af22 | 3375 | PL_hints = 0; |
68da3b2f | 3376 | SAVECOMPILEWARNINGS(); |
0453d815 | 3377 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3378 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3379 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3380 | PL_compiling.cop_warnings = pWARN_NONE ; |
72dc9ed5 NC |
3381 | else if (PL_taint_warn) { |
3382 | PL_compiling.cop_warnings | |
8ee4cf24 | 3383 | = Perl_new_warnings_bitfield(aTHX_ NULL, WARN_TAINTstring, WARNsize); |
72dc9ed5 | 3384 | } |
ac27b0f5 | 3385 | else |
d3a7d8c7 | 3386 | PL_compiling.cop_warnings = pWARN_STD ; |
ac27b0f5 | 3387 | SAVESPTR(PL_compiling.cop_io); |
c445ea15 | 3388 | PL_compiling.cop_io = NULL; |
a0d0e21e | 3389 | |
34113e50 | 3390 | if (filter_sub || filter_cache) { |
c445ea15 | 3391 | SV * const datasv = filter_add(S_run_user_filter, NULL); |
bbed91b5 | 3392 | IoLINES(datasv) = filter_has_file; |
bbed91b5 KF |
3393 | IoTOP_GV(datasv) = (GV *)filter_state; |
3394 | IoBOTTOM_GV(datasv) = (GV *)filter_sub; | |
34113e50 | 3395 | IoFMT_GV(datasv) = (GV *)filter_cache; |
bbed91b5 KF |
3396 | } |
3397 | ||
3398 | /* switch to eval mode */ | |
a0d0e21e | 3399 | PUSHBLOCK(cx, CXt_EVAL, SP); |
a0714e2c | 3400 | PUSHEVAL(cx, name, NULL); |
f39bc417 | 3401 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3402 | |
57843af0 GS |
3403 | SAVECOPLINE(&PL_compiling); |
3404 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3405 | |
3406 | PUTBACK; | |
6ec9efec JH |
3407 | |
3408 | /* Store and reset encoding. */ | |
3409 | encoding = PL_encoding; | |
c445ea15 | 3410 | PL_encoding = NULL; |
6ec9efec | 3411 | |
601f1833 | 3412 | op = DOCATCH(doeval(gimme, NULL, NULL, PL_curcop->cop_seq)); |
bfed75c6 | 3413 | |
6ec9efec JH |
3414 | /* Restore encoding. */ |
3415 | PL_encoding = encoding; | |
3416 | ||
3417 | return op; | |
a0d0e21e LW |
3418 | } |
3419 | ||
a0d0e21e LW |
3420 | PP(pp_entereval) |
3421 | { | |
27da23d5 | 3422 | dVAR; dSP; |
c09156bb | 3423 | register PERL_CONTEXT *cx; |
0d863452 | 3424 | SV *sv; |
890ce7af AL |
3425 | const I32 gimme = GIMME_V; |
3426 | const I32 was = PL_sub_generation; | |
83ee9e09 GS |
3427 | char tbuf[TYPE_DIGITS(long) + 12]; |
3428 | char *tmpbuf = tbuf; | |
fc36a67e | 3429 | char *safestr; |
a0d0e21e | 3430 | STRLEN len; |
55497cff | 3431 | OP *ret; |
a3985cdc | 3432 | CV* runcv; |
d819b83a | 3433 | U32 seq; |
c445ea15 | 3434 | HV *saved_hh = NULL; |
e80fed9d JH |
3435 | const char * const fakestr = "_<(eval )"; |
3436 | #ifdef HAS_STRLCPY | |
3437 | const int fakelen = 9 + 1; | |
3438 | #endif | |
0d863452 RH |
3439 | |
3440 | if (PL_op->op_private & OPpEVAL_HAS_HH) { | |
3441 | saved_hh = (HV*) SvREFCNT_inc(POPs); | |
3442 | } | |
3443 | sv = POPs; | |
a0d0e21e | 3444 | |
f7997f86 | 3445 | if (!SvPV_nolen_const(sv)) |
a0d0e21e | 3446 | RETPUSHUNDEF; |
748a9306 | 3447 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3448 | |
3449 | ENTER; | |
a0d0e21e | 3450 | lex_start(sv); |
748a9306 | 3451 | SAVETMPS; |
ac27b0f5 | 3452 | |
a0d0e21e LW |
3453 | /* switch to eval mode */ |
3454 | ||
83ee9e09 | 3455 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3456 | SV * const temp_sv = sv_newmortal(); |
3457 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3458 | (unsigned long)++PL_evalseq, |
3459 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3460 | tmpbuf = SvPVX(temp_sv); |
3461 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3462 | } |
3463 | else | |
e80fed9d JH |
3464 | #ifdef USE_SNPRINTF |
3465 | len = snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); | |
3466 | #else | |
fc009855 | 3467 | len = my_sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++PL_evalseq); |
e80fed9d | 3468 | #endif /* ifdef USE_SNPRINTF */ |
f4dd75d9 | 3469 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3470 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3471 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3472 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3473 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3474 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3475 | (i.e. before run-time proper). To work around the coredump that | |
3476 | ensues, we always turn GvMULTI_on for any globals that were | |
3477 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3478 | safestr = savepvn(tmpbuf, len); |
3479 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3480 | SAVEHINTS(); |
533c011a | 3481 | PL_hints = PL_op->op_targ; |
0d863452 RH |
3482 | if (saved_hh) |
3483 | GvHV(PL_hintgv) = saved_hh; | |
68da3b2f | 3484 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3485 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
ac27b0f5 NIS |
3486 | SAVESPTR(PL_compiling.cop_io); |
3487 | if (specialCopIO(PL_curcop->cop_io)) | |
3488 | PL_compiling.cop_io = PL_curcop->cop_io; | |
3489 | else { | |
3490 | PL_compiling.cop_io = newSVsv(PL_curcop->cop_io); | |
3491 | SAVEFREESV(PL_compiling.cop_io); | |
3492 | } | |
a24d89c9 | 3493 | if (PL_compiling.cop_hints) { |
cbb1fbea | 3494 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints); |
a24d89c9 NC |
3495 | } |
3496 | PL_compiling.cop_hints = PL_curcop->cop_hints; | |
3497 | if (PL_compiling.cop_hints) { | |
cbb1fbea | 3498 | HINTS_REFCNT_LOCK; |
a24d89c9 | 3499 | PL_compiling.cop_hints->refcounted_he_refcnt++; |
cbb1fbea | 3500 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3501 | } |
d819b83a DM |
3502 | /* special case: an eval '' executed within the DB package gets lexically |
3503 | * placed in the first non-DB CV rather than the current CV - this | |
3504 | * allows the debugger to execute code, find lexicals etc, in the | |
3505 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3506 | * to do the dirty work for us */ | |
3507 | runcv = find_runcv(&seq); | |
a0d0e21e | 3508 | |
6b35e009 | 3509 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
a0714e2c | 3510 | PUSHEVAL(cx, 0, NULL); |
f39bc417 | 3511 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3512 | |
3513 | /* prepare to compile string */ | |
3514 | ||
3280af22 | 3515 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
cc49e20b | 3516 | save_lines(CopFILEAV(&PL_compiling), PL_linestr); |
a0d0e21e | 3517 | PUTBACK; |
d819b83a | 3518 | ret = doeval(gimme, NULL, runcv, seq); |
eb160463 | 3519 | if (PERLDB_INTER && was != (I32)PL_sub_generation /* Some subs defined here. */ |
533c011a | 3520 | && ret != PL_op->op_next) { /* Successive compilation. */ |
e80fed9d JH |
3521 | /* Copy in anything fake and short. */ |
3522 | #ifdef HAS_STRLCPY | |
3523 | strlcpy(safestr, fakestr, fakelen); | |
3524 | #else | |
3525 | strcpy(safestr, fakestr); | |
3526 | #endif /* #ifdef HAS_STRLCPY */ | |
55497cff | 3527 | } |
1e422769 | 3528 | return DOCATCH(ret); |
a0d0e21e LW |
3529 | } |
3530 | ||
3531 | PP(pp_leaveeval) | |
3532 | { | |
27da23d5 | 3533 | dVAR; dSP; |
a0d0e21e LW |
3534 | register SV **mark; |
3535 | SV **newsp; | |
3536 | PMOP *newpm; | |
3537 | I32 gimme; | |
c09156bb | 3538 | register PERL_CONTEXT *cx; |
a0d0e21e | 3539 | OP *retop; |
06b5626a | 3540 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3541 | I32 optype; |
3542 | ||
3543 | POPBLOCK(cx,newpm); | |
3544 | POPEVAL(cx); | |
f39bc417 | 3545 | retop = cx->blk_eval.retop; |
a0d0e21e | 3546 | |
a1f49e72 | 3547 | TAINT_NOT; |
54310121 | 3548 | if (gimme == G_VOID) |
3549 | MARK = newsp; | |
3550 | else if (gimme == G_SCALAR) { | |
3551 | MARK = newsp + 1; | |
3552 | if (MARK <= SP) { | |
3553 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3554 | *MARK = TOPs; | |
3555 | else | |
3556 | *MARK = sv_mortalcopy(TOPs); | |
3557 | } | |
a0d0e21e | 3558 | else { |
54310121 | 3559 | MEXTEND(mark,0); |
3280af22 | 3560 | *MARK = &PL_sv_undef; |
a0d0e21e | 3561 | } |
a7ec2b44 | 3562 | SP = MARK; |
a0d0e21e LW |
3563 | } |
3564 | else { | |
a1f49e72 CS |
3565 | /* in case LEAVE wipes old return values */ |
3566 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3567 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3568 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3569 | TAINT_NOT; /* Each item is independent */ |
3570 | } | |
3571 | } | |
a0d0e21e | 3572 | } |
3280af22 | 3573 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3574 | |
4fdae800 | 3575 | #ifdef DEBUGGING |
3280af22 | 3576 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3577 | #endif |
3280af22 | 3578 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3579 | lex_end(); |
4fdae800 | 3580 | |
1ce6579f | 3581 | if (optype == OP_REQUIRE && |
924508f0 | 3582 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3583 | { |
1ce6579f | 3584 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3585 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3586 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
95b63a38 | 3587 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", (void*)nsv); |
f46d017c GS |
3588 | /* die_where() did LEAVE, or we won't be here */ |
3589 | } | |
3590 | else { | |
3591 | LEAVE; | |
3592 | if (!(save_flags & OPf_SPECIAL)) | |
c69006e4 | 3593 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 3594 | } |
a0d0e21e LW |
3595 | |
3596 | RETURNOP(retop); | |
3597 | } | |
3598 | ||
edb2152a NC |
3599 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3600 | close to the related Perl_create_eval_scope. */ | |
3601 | void | |
3602 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3603 | { |
edb2152a NC |
3604 | SV **newsp; |
3605 | PMOP *newpm; | |
3606 | I32 gimme; | |
c09156bb | 3607 | register PERL_CONTEXT *cx; |
edb2152a NC |
3608 | I32 optype; |
3609 | ||
3610 | POPBLOCK(cx,newpm); | |
3611 | POPEVAL(cx); | |
3612 | PL_curpm = newpm; | |
3613 | LEAVE; | |
3614 | PERL_UNUSED_VAR(newsp); | |
3615 | PERL_UNUSED_VAR(gimme); | |
3616 | PERL_UNUSED_VAR(optype); | |
3617 | } | |
a0d0e21e | 3618 | |
edb2152a NC |
3619 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3620 | also needed by Perl_fold_constants. */ | |
3621 | PERL_CONTEXT * | |
3622 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3623 | { | |
3624 | PERL_CONTEXT *cx; | |
3625 | const I32 gimme = GIMME_V; | |
3626 | ||
a0d0e21e LW |
3627 | ENTER; |
3628 | SAVETMPS; | |
3629 | ||
edb2152a | 3630 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
a0d0e21e | 3631 | PUSHEVAL(cx, 0, 0); |
edb2152a | 3632 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
a0d0e21e | 3633 | |
faef0170 | 3634 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3635 | if (flags & G_KEEPERR) |
3636 | PL_in_eval |= EVAL_KEEPERR; | |
3637 | else | |
3638 | sv_setpvn(ERRSV,"",0); | |
3639 | if (flags & G_FAKINGEVAL) { | |
3640 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3641 | } | |
3642 | return cx; | |
3643 | } | |
3644 | ||
3645 | PP(pp_entertry) | |
3646 | { | |
3647 | dVAR; | |
df528165 | 3648 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3649 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3650 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3651 | } |
3652 | ||
3653 | PP(pp_leavetry) | |
3654 | { | |
27da23d5 | 3655 | dVAR; dSP; |
a0d0e21e LW |
3656 | SV **newsp; |
3657 | PMOP *newpm; | |
3658 | I32 gimme; | |
c09156bb | 3659 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3660 | I32 optype; |
3661 | ||
3662 | POPBLOCK(cx,newpm); | |
3663 | POPEVAL(cx); | |
9d4ba2ae | 3664 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3665 | |
a1f49e72 | 3666 | TAINT_NOT; |
54310121 | 3667 | if (gimme == G_VOID) |
3668 | SP = newsp; | |
3669 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3670 | register SV **mark; |
54310121 | 3671 | MARK = newsp + 1; |
3672 | if (MARK <= SP) { | |
3673 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3674 | *MARK = TOPs; | |
3675 | else | |
3676 | *MARK = sv_mortalcopy(TOPs); | |
3677 | } | |
a0d0e21e | 3678 | else { |
54310121 | 3679 | MEXTEND(mark,0); |
3280af22 | 3680 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3681 | } |
3682 | SP = MARK; | |
3683 | } | |
3684 | else { | |
a1f49e72 | 3685 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3686 | register SV **mark; |
a1f49e72 CS |
3687 | for (mark = newsp + 1; mark <= SP; mark++) { |
3688 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3689 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3690 | TAINT_NOT; /* Each item is independent */ |
3691 | } | |
3692 | } | |
a0d0e21e | 3693 | } |
3280af22 | 3694 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3695 | |
3696 | LEAVE; | |
c69006e4 | 3697 | sv_setpvn(ERRSV,"",0); |
745cf2ff | 3698 | RETURN; |
a0d0e21e LW |
3699 | } |
3700 | ||
0d863452 RH |
3701 | PP(pp_entergiven) |
3702 | { | |
3703 | dVAR; dSP; | |
3704 | register PERL_CONTEXT *cx; | |
3705 | const I32 gimme = GIMME_V; | |
3706 | ||
3707 | ENTER; | |
3708 | SAVETMPS; | |
3709 | ||
3710 | if (PL_op->op_targ == 0) { | |
c445ea15 | 3711 | SV ** const defsv_p = &GvSV(PL_defgv); |
0d863452 RH |
3712 | *defsv_p = newSVsv(POPs); |
3713 | SAVECLEARSV(*defsv_p); | |
3714 | } | |
3715 | else | |
3716 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); | |
3717 | ||
3718 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3719 | PUSHGIVEN(cx); | |
3720 | ||
3721 | RETURN; | |
3722 | } | |
3723 | ||
3724 | PP(pp_leavegiven) | |
3725 | { | |
3726 | dVAR; dSP; | |
3727 | register PERL_CONTEXT *cx; | |
3728 | I32 gimme; | |
3729 | SV **newsp; | |
3730 | PMOP *newpm; | |
96a5add6 | 3731 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3732 | |
3733 | POPBLOCK(cx,newpm); | |
3734 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3735 | |
3736 | SP = newsp; | |
3737 | PUTBACK; | |
3738 | ||
3739 | PL_curpm = newpm; /* pop $1 et al */ | |
3740 | ||
3741 | LEAVE; | |
3742 | ||
3743 | return NORMAL; | |
3744 | } | |
3745 | ||
3746 | /* Helper routines used by pp_smartmatch */ | |
3747 | STATIC | |
3748 | PMOP * | |
3749 | S_make_matcher(pTHX_ regexp *re) | |
3750 | { | |
97aff369 | 3751 | dVAR; |
0d863452 RH |
3752 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
3753 | PM_SETRE(matcher, ReREFCNT_inc(re)); | |
3754 | ||
3755 | SAVEFREEOP((OP *) matcher); | |
3756 | ENTER; SAVETMPS; | |
3757 | SAVEOP(); | |
3758 | return matcher; | |
3759 | } | |
3760 | ||
3761 | STATIC | |
3762 | bool | |
3763 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) | |
3764 | { | |
97aff369 | 3765 | dVAR; |
0d863452 RH |
3766 | dSP; |
3767 | ||
3768 | PL_op = (OP *) matcher; | |
3769 | XPUSHs(sv); | |
3770 | PUTBACK; | |
3771 | (void) pp_match(); | |
3772 | SPAGAIN; | |
3773 | return (SvTRUEx(POPs)); | |
3774 | } | |
3775 | ||
3776 | STATIC | |
3777 | void | |
3778 | S_destroy_matcher(pTHX_ PMOP *matcher) | |
3779 | { | |
97aff369 | 3780 | dVAR; |
0d863452 RH |
3781 | PERL_UNUSED_ARG(matcher); |
3782 | FREETMPS; | |
3783 | LEAVE; | |
3784 | } | |
3785 | ||
3786 | /* Do a smart match */ | |
3787 | PP(pp_smartmatch) | |
3788 | { | |
a0714e2c | 3789 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
3790 | } |
3791 | ||
3792 | /* This version of do_smartmatch() implements the following | |
3793 | table of smart matches: | |
3794 | ||
3795 | $a $b Type of Match Implied Matching Code | |
3796 | ====== ===== ===================== ============= | |
3797 | (overloading trumps everything) | |
3798 | ||
3799 | Code[+] Code[+] referential equality match if refaddr($a) == refaddr($b) | |
3800 | Any Code[+] scalar sub truth match if $b->($a) | |
3801 | ||
3802 | Hash Hash hash keys identical match if sort(keys(%$a)) ÈeqÇ sort(keys(%$b)) | |
3803 | Hash Array hash value slice truth match if $a->{any(@$b)} | |
3804 | Hash Regex hash key grep match if any(keys(%$a)) =~ /$b/ | |
3805 | Hash Any hash entry existence match if exists $a->{$b} | |
3806 | ||
3807 | Array Array arrays are identical[*] match if $a È~~Ç $b | |
3808 | Array Regex array grep match if any(@$a) =~ /$b/ | |
3809 | Array Num array contains number match if any($a) == $b | |
3810 | Array Any array contains string match if any($a) eq $b | |
3811 | ||
3812 | Any undef undefined match if !defined $a | |
3813 | Any Regex pattern match match if $a =~ /$b/ | |
3814 | Code() Code() results are equal match if $a->() eq $b->() | |
3815 | Any Code() simple closure truth match if $b->() (ignoring $a) | |
3816 | Num numish[!] numeric equality match if $a == $b | |
3817 | Any Str string equality match if $a eq $b | |
3818 | Any Num numeric equality match if $a == $b | |
3819 | ||
3820 | Any Any string equality match if $a eq $b | |
3821 | ||
3822 | ||
3823 | + - this must be a code reference whose prototype (if present) is not "" | |
3824 | (subs with a "" prototype are dealt with by the 'Code()' entry lower down) | |
3825 | * - if a circular reference is found, we fall back to referential equality | |
3826 | ! - either a real number, or a string that looks_like_number() | |
3827 | ||
3828 | */ | |
3829 | STATIC | |
3830 | OP * | |
3831 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) | |
3832 | { | |
97aff369 | 3833 | dVAR; |
0d863452 RH |
3834 | dSP; |
3835 | ||
3836 | SV *e = TOPs; /* e is for 'expression' */ | |
3837 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
3838 | SV *this, *other; | |
3839 | MAGIC *mg; | |
3840 | regexp *this_regex, *other_regex; | |
3841 | ||
3842 | # define NOT_EMPTY_PROTO(cv) (!SvPOK(cv) || SvCUR(cv) == 0) | |
3843 | ||
3844 | # define SM_REF(type) ( \ | |
3845 | (SvROK(d) && (SvTYPE(this = SvRV(d)) == SVt_##type) && (other = e)) \ | |
3846 | || (SvROK(e) && (SvTYPE(this = SvRV(e)) == SVt_##type) && (other = d))) | |
3847 | ||
3848 | # define SM_CV_NEP /* Find a code ref without an empty prototype */ \ | |
3849 | ((SvROK(d) && (SvTYPE(this = SvRV(d)) == SVt_PVCV) \ | |
3850 | && NOT_EMPTY_PROTO(this) && (other = e)) \ | |
3851 | || (SvROK(e) && (SvTYPE(this = SvRV(e)) == SVt_PVCV) \ | |
3852 | && NOT_EMPTY_PROTO(this) && (other = d))) | |
3853 | ||
3854 | # define SM_REGEX ( \ | |
3855 | (SvROK(d) && SvMAGICAL(this = SvRV(d)) \ | |
3856 | && (mg = mg_find(this, PERL_MAGIC_qr)) \ | |
3857 | && (this_regex = (regexp *)mg->mg_obj) \ | |
3858 | && (other = e)) \ | |
3859 | || \ | |
3860 | (SvROK(e) && SvMAGICAL(this = SvRV(e)) \ | |
3861 | && (mg = mg_find(this, PERL_MAGIC_qr)) \ | |
3862 | && (this_regex = (regexp *)mg->mg_obj) \ | |
3863 | && (other = d)) ) | |
3864 | ||
3865 | ||
3866 | # define SM_OTHER_REF(type) \ | |
3867 | (SvROK(other) && SvTYPE(SvRV(other)) == SVt_##type) | |
3868 | ||
3869 | # define SM_OTHER_REGEX (SvROK(other) && SvMAGICAL(SvRV(other)) \ | |
3870 | && (mg = mg_find(SvRV(other), PERL_MAGIC_qr)) \ | |
3871 | && (other_regex = (regexp *)mg->mg_obj)) | |
3872 | ||
3873 | ||
3874 | # define SM_SEEN_THIS(sv) hv_exists_ent(seen_this, \ | |
98f4023c | 3875 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3876 | |
3877 | # define SM_SEEN_OTHER(sv) hv_exists_ent(seen_other, \ | |
98f4023c | 3878 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3879 | |
3880 | tryAMAGICbinSET(smart, 0); | |
3881 | ||
3882 | SP -= 2; /* Pop the values */ | |
3883 | ||
3884 | /* Take care only to invoke mg_get() once for each argument. | |
3885 | * Currently we do this by copying the SV if it's magical. */ | |
3886 | if (d) { | |
3887 | if (SvGMAGICAL(d)) | |
3888 | d = sv_mortalcopy(d); | |
3889 | } | |
3890 | else | |
3891 | d = &PL_sv_undef; | |
3892 | ||
3893 | assert(e); | |
3894 | if (SvGMAGICAL(e)) | |
3895 | e = sv_mortalcopy(e); | |
3896 | ||
3897 | if (SM_CV_NEP) { | |
3898 | I32 c; | |
3899 | ||
3900 | if ( SM_OTHER_REF(PVCV) && NOT_EMPTY_PROTO(SvRV(other)) ) | |
3901 | { | |
3902 | if (this == SvRV(other)) | |
3903 | RETPUSHYES; | |
3904 | else | |
3905 | RETPUSHNO; | |
3906 | } | |
3907 | ||
3908 | ENTER; | |
3909 | SAVETMPS; | |
3910 | PUSHMARK(SP); | |
3911 | PUSHs(other); | |
3912 | PUTBACK; | |
3913 | c = call_sv(this, G_SCALAR); | |
3914 | SPAGAIN; | |
3915 | if (c == 0) | |
3916 | PUSHs(&PL_sv_no); | |
3917 | else if (SvTEMP(TOPs)) | |
df528165 | 3918 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
3919 | FREETMPS; |
3920 | LEAVE; | |
3921 | RETURN; | |
3922 | } | |
3923 | else if (SM_REF(PVHV)) { | |
3924 | if (SM_OTHER_REF(PVHV)) { | |
3925 | /* Check that the key-sets are identical */ | |
3926 | HE *he; | |
3927 | HV *other_hv = (HV *) SvRV(other); | |
3928 | bool tied = FALSE; | |
3929 | bool other_tied = FALSE; | |
3930 | U32 this_key_count = 0, | |
3931 | other_key_count = 0; | |
3932 | ||
3933 | /* Tied hashes don't know how many keys they have. */ | |
3934 | if (SvTIED_mg(this, PERL_MAGIC_tied)) { | |
3935 | tied = TRUE; | |
3936 | } | |
3937 | else if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) { | |
c445ea15 | 3938 | HV * const temp = other_hv; |
0d863452 RH |
3939 | other_hv = (HV *) this; |
3940 | this = (SV *) temp; | |
3941 | tied = TRUE; | |
3942 | } | |
3943 | if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) | |
3944 | other_tied = TRUE; | |
3945 | ||
3946 | if (!tied && HvUSEDKEYS((HV *) this) != HvUSEDKEYS(other_hv)) | |
3947 | RETPUSHNO; | |
3948 | ||
3949 | /* The hashes have the same number of keys, so it suffices | |
3950 | to check that one is a subset of the other. */ | |
3951 | (void) hv_iterinit((HV *) this); | |
3952 | while ( (he = hv_iternext((HV *) this)) ) { | |
3953 | I32 key_len; | |
c445ea15 | 3954 | char * const key = hv_iterkey(he, &key_len); |
0d863452 RH |
3955 | |
3956 | ++ this_key_count; | |
3957 | ||
3958 | if(!hv_exists(other_hv, key, key_len)) { | |
3959 | (void) hv_iterinit((HV *) this); /* reset iterator */ | |
3960 | RETPUSHNO; | |
3961 | } | |
3962 | } | |
3963 | ||
3964 | if (other_tied) { | |
3965 | (void) hv_iterinit(other_hv); | |
3966 | while ( hv_iternext(other_hv) ) | |
3967 | ++other_key_count; | |
3968 | } | |
3969 | else | |
3970 | other_key_count = HvUSEDKEYS(other_hv); | |
3971 | ||
3972 | if (this_key_count != other_key_count) | |
3973 | RETPUSHNO; | |
3974 | else | |
3975 | RETPUSHYES; | |
3976 | } | |
3977 | else if (SM_OTHER_REF(PVAV)) { | |
c445ea15 AL |
3978 | AV * const other_av = (AV *) SvRV(other); |
3979 | const I32 other_len = av_len(other_av) + 1; | |
0d863452 RH |
3980 | I32 i; |
3981 | ||
3982 | if (HvUSEDKEYS((HV *) this) != other_len) | |
3983 | RETPUSHNO; | |
3984 | ||
3985 | for(i = 0; i < other_len; ++i) { | |
c445ea15 | 3986 | SV ** const svp = av_fetch(other_av, i, FALSE); |
0d863452 RH |
3987 | char *key; |
3988 | STRLEN key_len; | |
3989 | ||
3990 | if (!svp) /* ??? When can this happen? */ | |
3991 | RETPUSHNO; | |
3992 | ||
3993 | key = SvPV(*svp, key_len); | |
3994 | if(!hv_exists((HV *) this, key, key_len)) | |
3995 | RETPUSHNO; | |
3996 | } | |
3997 | RETPUSHYES; | |
3998 | } | |
3999 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4000 | PMOP * const matcher = make_matcher(other_regex); |
0d863452 RH |
4001 | HE *he; |
4002 | ||
4003 | (void) hv_iterinit((HV *) this); | |
4004 | while ( (he = hv_iternext((HV *) this)) ) { | |
4005 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { | |
4006 | (void) hv_iterinit((HV *) this); | |
4007 | destroy_matcher(matcher); | |
4008 | RETPUSHYES; | |
4009 | } | |
4010 | } | |
4011 | destroy_matcher(matcher); | |
4012 | RETPUSHNO; | |
4013 | } | |
4014 | else { | |
4015 | if (hv_exists_ent((HV *) this, other, 0)) | |
4016 | RETPUSHYES; | |
4017 | else | |
4018 | RETPUSHNO; | |
4019 | } | |
4020 | } | |
4021 | else if (SM_REF(PVAV)) { | |
4022 | if (SM_OTHER_REF(PVAV)) { | |
4023 | AV *other_av = (AV *) SvRV(other); | |
4024 | if (av_len((AV *) this) != av_len(other_av)) | |
4025 | RETPUSHNO; | |
4026 | else { | |
4027 | I32 i; | |
c445ea15 | 4028 | const I32 other_len = av_len(other_av); |
0d863452 | 4029 | |
a0714e2c | 4030 | if (NULL == seen_this) { |
0d863452 RH |
4031 | seen_this = newHV(); |
4032 | (void) sv_2mortal((SV *) seen_this); | |
4033 | } | |
a0714e2c | 4034 | if (NULL == seen_other) { |
0d863452 RH |
4035 | seen_this = newHV(); |
4036 | (void) sv_2mortal((SV *) seen_other); | |
4037 | } | |
4038 | for(i = 0; i <= other_len; ++i) { | |
c445ea15 AL |
4039 | SV * const * const this_elem = av_fetch((AV *)this, i, FALSE); |
4040 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); | |
4041 | ||
0d863452 RH |
4042 | if (!this_elem || !other_elem) { |
4043 | if (this_elem || other_elem) | |
4044 | RETPUSHNO; | |
4045 | } | |
4046 | else if (SM_SEEN_THIS(*this_elem) | |
4047 | || SM_SEEN_OTHER(*other_elem)) | |
4048 | { | |
4049 | if (*this_elem != *other_elem) | |
4050 | RETPUSHNO; | |
4051 | } | |
4052 | else { | |
4053 | hv_store_ent(seen_this, | |
98f4023c | 4054 | sv_2mortal(newSViv(PTR2IV(*this_elem))), |
0d863452 RH |
4055 | &PL_sv_undef, 0); |
4056 | hv_store_ent(seen_other, | |
98f4023c | 4057 | sv_2mortal(newSViv(PTR2IV(*other_elem))), |
0d863452 RH |
4058 | &PL_sv_undef, 0); |
4059 | PUSHs(*this_elem); | |
4060 | PUSHs(*other_elem); | |
4061 | ||
4062 | PUTBACK; | |
4063 | (void) do_smartmatch(seen_this, seen_other); | |
4064 | SPAGAIN; | |
4065 | ||
4066 | if (!SvTRUEx(POPs)) | |
4067 | RETPUSHNO; | |
4068 | } | |
4069 | } | |
4070 | RETPUSHYES; | |
4071 | } | |
4072 | } | |
4073 | else if (SM_OTHER_REGEX) { | |
c445ea15 AL |
4074 | PMOP * const matcher = make_matcher(other_regex); |
4075 | const I32 this_len = av_len((AV *) this); | |
0d863452 | 4076 | I32 i; |
0d863452 RH |
4077 | |
4078 | for(i = 0; i <= this_len; ++i) { | |
c445ea15 | 4079 | SV * const * const svp = av_fetch((AV *)this, i, FALSE); |
0d863452 RH |
4080 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4081 | destroy_matcher(matcher); | |
4082 | RETPUSHYES; | |
4083 | } | |
4084 | } | |
4085 | destroy_matcher(matcher); | |
4086 | RETPUSHNO; | |
4087 | } | |
4088 | else if (SvIOK(other) || SvNOK(other)) { | |
4089 | I32 i; | |
4090 | ||
4091 | for(i = 0; i <= AvFILL((AV *) this); ++i) { | |
c445ea15 | 4092 | SV * const * const svp = av_fetch((AV *)this, i, FALSE); |
0d863452 RH |
4093 | if (!svp) |
4094 | continue; | |
4095 | ||
4096 | PUSHs(other); | |
4097 | PUSHs(*svp); | |
4098 | PUTBACK; | |
a98fe34d | 4099 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4100 | (void) pp_i_eq(); |
4101 | else | |
4102 | (void) pp_eq(); | |
4103 | SPAGAIN; | |
4104 | if (SvTRUEx(POPs)) | |
4105 | RETPUSHYES; | |
4106 | } | |
4107 | RETPUSHNO; | |
4108 | } | |
4109 | else if (SvPOK(other)) { | |
c445ea15 | 4110 | const I32 this_len = av_len((AV *) this); |
0d863452 | 4111 | I32 i; |
0d863452 RH |
4112 | |
4113 | for(i = 0; i <= this_len; ++i) { | |
c445ea15 | 4114 | SV * const * const svp = av_fetch((AV *)this, i, FALSE); |
0d863452 RH |
4115 | if (!svp) |
4116 | continue; | |
4117 | ||
4118 | PUSHs(other); | |
4119 | PUSHs(*svp); | |
4120 | PUTBACK; | |
4121 | (void) pp_seq(); | |
4122 | SPAGAIN; | |
4123 | if (SvTRUEx(POPs)) | |
4124 | RETPUSHYES; | |
4125 | } | |
4126 | RETPUSHNO; | |
4127 | } | |
4128 | } | |
4129 | else if (!SvOK(d) || !SvOK(e)) { | |
4130 | if (!SvOK(d) && !SvOK(e)) | |
4131 | RETPUSHYES; | |
4132 | else | |
4133 | RETPUSHNO; | |
4134 | } | |
4135 | else if (SM_REGEX) { | |
c445ea15 | 4136 | PMOP * const matcher = make_matcher(this_regex); |
0d863452 RH |
4137 | |
4138 | PUTBACK; | |
4139 | PUSHs(matcher_matches_sv(matcher, other) | |
4140 | ? &PL_sv_yes | |
4141 | : &PL_sv_no); | |
4142 | destroy_matcher(matcher); | |
4143 | RETURN; | |
4144 | } | |
4145 | else if (SM_REF(PVCV)) { | |
4146 | I32 c; | |
4147 | /* This must be a null-prototyped sub, because we | |
4148 | already checked for the other kind. */ | |
4149 | ||
4150 | ENTER; | |
4151 | SAVETMPS; | |
4152 | PUSHMARK(SP); | |
4153 | PUTBACK; | |
4154 | c = call_sv(this, G_SCALAR); | |
4155 | SPAGAIN; | |
4156 | if (c == 0) | |
4157 | PUSHs(&PL_sv_undef); | |
4158 | else if (SvTEMP(TOPs)) | |
df528165 | 4159 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4160 | |
4161 | if (SM_OTHER_REF(PVCV)) { | |
4162 | /* This one has to be null-proto'd too. | |
4163 | Call both of 'em, and compare the results */ | |
4164 | PUSHMARK(SP); | |
4165 | c = call_sv(SvRV(other), G_SCALAR); | |
4166 | SPAGAIN; | |
4167 | if (c == 0) | |
4168 | PUSHs(&PL_sv_undef); | |
4169 | else if (SvTEMP(TOPs)) | |
df528165 | 4170 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4171 | FREETMPS; |
4172 | LEAVE; | |
4173 | PUTBACK; | |
4174 | return pp_eq(); | |
4175 | } | |
4176 | ||
4177 | FREETMPS; | |
4178 | LEAVE; | |
4179 | RETURN; | |
4180 | } | |
4181 | else if ( ((SvIOK(d) || SvNOK(d)) && (this = d) && (other = e)) | |
4182 | || ((SvIOK(e) || SvNOK(e)) && (this = e) && (other = d)) ) | |
4183 | { | |
4184 | if (SvPOK(other) && !looks_like_number(other)) { | |
4185 | /* String comparison */ | |
4186 | PUSHs(d); PUSHs(e); | |
4187 | PUTBACK; | |
4188 | return pp_seq(); | |
4189 | } | |
4190 | /* Otherwise, numeric comparison */ | |
4191 | PUSHs(d); PUSHs(e); | |
4192 | PUTBACK; | |
a98fe34d | 4193 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4194 | (void) pp_i_eq(); |
4195 | else | |
4196 | (void) pp_eq(); | |
4197 | SPAGAIN; | |
4198 | if (SvTRUEx(POPs)) | |
4199 | RETPUSHYES; | |
4200 | else | |
4201 | RETPUSHNO; | |
4202 | } | |
4203 | ||
4204 | /* As a last resort, use string comparison */ | |
4205 | PUSHs(d); PUSHs(e); | |
4206 | PUTBACK; | |
4207 | return pp_seq(); | |
4208 | } | |
4209 | ||
4210 | PP(pp_enterwhen) | |
4211 | { | |
4212 | dVAR; dSP; | |
4213 | register PERL_CONTEXT *cx; | |
4214 | const I32 gimme = GIMME_V; | |
4215 | ||
4216 | /* This is essentially an optimization: if the match | |
4217 | fails, we don't want to push a context and then | |
4218 | pop it again right away, so we skip straight | |
4219 | to the op that follows the leavewhen. | |
4220 | */ | |
4221 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4222 | return cLOGOP->op_other->op_next; | |
4223 | ||
4224 | ENTER; | |
4225 | SAVETMPS; | |
4226 | ||
4227 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4228 | PUSHWHEN(cx); | |
4229 | ||
4230 | RETURN; | |
4231 | } | |
4232 | ||
4233 | PP(pp_leavewhen) | |
4234 | { | |
4235 | dVAR; dSP; | |
4236 | register PERL_CONTEXT *cx; | |
4237 | I32 gimme; | |
4238 | SV **newsp; | |
4239 | PMOP *newpm; | |
4240 | ||
4241 | POPBLOCK(cx,newpm); | |
4242 | assert(CxTYPE(cx) == CXt_WHEN); | |
4243 | ||
4244 | SP = newsp; | |
4245 | PUTBACK; | |
4246 | ||
4247 | PL_curpm = newpm; /* pop $1 et al */ | |
4248 | ||
4249 | LEAVE; | |
4250 | return NORMAL; | |
4251 | } | |
4252 | ||
4253 | PP(pp_continue) | |
4254 | { | |
4255 | dVAR; | |
4256 | I32 cxix; | |
4257 | register PERL_CONTEXT *cx; | |
4258 | I32 inner; | |
4259 | ||
4260 | cxix = dopoptowhen(cxstack_ix); | |
4261 | if (cxix < 0) | |
4262 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4263 | if (cxix < cxstack_ix) | |
4264 | dounwind(cxix); | |
4265 | ||
4266 | /* clear off anything above the scope we're re-entering */ | |
4267 | inner = PL_scopestack_ix; | |
4268 | TOPBLOCK(cx); | |
4269 | if (PL_scopestack_ix < inner) | |
4270 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4271 | PL_curcop = cx->blk_oldcop; | |
4272 | return cx->blk_givwhen.leave_op; | |
4273 | } | |
4274 | ||
4275 | PP(pp_break) | |
4276 | { | |
4277 | dVAR; | |
4278 | I32 cxix; | |
4279 | register PERL_CONTEXT *cx; | |
4280 | I32 inner; | |
4281 | ||
4282 | cxix = dopoptogiven(cxstack_ix); | |
4283 | if (cxix < 0) { | |
4284 | if (PL_op->op_flags & OPf_SPECIAL) | |
4285 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4286 | else | |
4287 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4288 | } | |
4289 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4290 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4291 | ||
4292 | if (cxix < cxstack_ix) | |
4293 | dounwind(cxix); | |
4294 | ||
4295 | /* clear off anything above the scope we're re-entering */ | |
4296 | inner = PL_scopestack_ix; | |
4297 | TOPBLOCK(cx); | |
4298 | if (PL_scopestack_ix < inner) | |
4299 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4300 | PL_curcop = cx->blk_oldcop; | |
4301 | ||
4302 | if (CxFOREACH(cx)) | |
4303 | return cx->blk_loop.next_op; | |
4304 | else | |
4305 | return cx->blk_givwhen.leave_op; | |
4306 | } | |
4307 | ||
a1b95068 | 4308 | STATIC OP * |
cea2e8a9 | 4309 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4310 | { |
4311 | STRLEN len; | |
4312 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4313 | register char * const send = s + len; |
4314 | register char *base = NULL; | |
a0d0e21e | 4315 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4316 | bool noblank = FALSE; |
4317 | bool repeat = FALSE; | |
a0d0e21e | 4318 | bool postspace = FALSE; |
dea28490 JJ |
4319 | U32 *fops; |
4320 | register U32 *fpc; | |
cbbf8932 | 4321 | U32 *linepc = NULL; |
a0d0e21e LW |
4322 | register I32 arg; |
4323 | bool ischop; | |
a1b95068 WL |
4324 | bool unchopnum = FALSE; |
4325 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4326 | |
55497cff | 4327 | if (len == 0) |
cea2e8a9 | 4328 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4329 | |
815f25c6 DM |
4330 | /* estimate the buffer size needed */ |
4331 | for (base = s; s <= send; s++) { | |
a1b95068 | 4332 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4333 | maxops += 10; |
4334 | } | |
4335 | s = base; | |
c445ea15 | 4336 | base = NULL; |
815f25c6 | 4337 | |
a02a5408 | 4338 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4339 | fpc = fops; |
4340 | ||
4341 | if (s < send) { | |
4342 | linepc = fpc; | |
4343 | *fpc++ = FF_LINEMARK; | |
4344 | noblank = repeat = FALSE; | |
4345 | base = s; | |
4346 | } | |
4347 | ||
4348 | while (s <= send) { | |
4349 | switch (*s++) { | |
4350 | default: | |
4351 | skipspaces = 0; | |
4352 | continue; | |
4353 | ||
4354 | case '~': | |
4355 | if (*s == '~') { | |
4356 | repeat = TRUE; | |
4357 | *s = ' '; | |
4358 | } | |
4359 | noblank = TRUE; | |
4360 | s[-1] = ' '; | |
4361 | /* FALL THROUGH */ | |
4362 | case ' ': case '\t': | |
4363 | skipspaces++; | |
4364 | continue; | |
a1b95068 WL |
4365 | case 0: |
4366 | if (s < send) { | |
4367 | skipspaces = 0; | |
4368 | continue; | |
4369 | } /* else FALL THROUGH */ | |
4370 | case '\n': | |
a0d0e21e LW |
4371 | arg = s - base; |
4372 | skipspaces++; | |
4373 | arg -= skipspaces; | |
4374 | if (arg) { | |
5f05dabc | 4375 | if (postspace) |
a0d0e21e | 4376 | *fpc++ = FF_SPACE; |
a0d0e21e | 4377 | *fpc++ = FF_LITERAL; |
eb160463 | 4378 | *fpc++ = (U16)arg; |
a0d0e21e | 4379 | } |
5f05dabc | 4380 | postspace = FALSE; |
a0d0e21e LW |
4381 | if (s <= send) |
4382 | skipspaces--; | |
4383 | if (skipspaces) { | |
4384 | *fpc++ = FF_SKIP; | |
eb160463 | 4385 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4386 | } |
4387 | skipspaces = 0; | |
4388 | if (s <= send) | |
4389 | *fpc++ = FF_NEWLINE; | |
4390 | if (noblank) { | |
4391 | *fpc++ = FF_BLANK; | |
4392 | if (repeat) | |
4393 | arg = fpc - linepc + 1; | |
4394 | else | |
4395 | arg = 0; | |
eb160463 | 4396 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4397 | } |
4398 | if (s < send) { | |
4399 | linepc = fpc; | |
4400 | *fpc++ = FF_LINEMARK; | |
4401 | noblank = repeat = FALSE; | |
4402 | base = s; | |
4403 | } | |
4404 | else | |
4405 | s++; | |
4406 | continue; | |
4407 | ||
4408 | case '@': | |
4409 | case '^': | |
4410 | ischop = s[-1] == '^'; | |
4411 | ||
4412 | if (postspace) { | |
4413 | *fpc++ = FF_SPACE; | |
4414 | postspace = FALSE; | |
4415 | } | |
4416 | arg = (s - base) - 1; | |
4417 | if (arg) { | |
4418 | *fpc++ = FF_LITERAL; | |
eb160463 | 4419 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4420 | } |
4421 | ||
4422 | base = s - 1; | |
4423 | *fpc++ = FF_FETCH; | |
4424 | if (*s == '*') { | |
4425 | s++; | |
a1b95068 WL |
4426 | *fpc++ = 2; /* skip the @* or ^* */ |
4427 | if (ischop) { | |
4428 | *fpc++ = FF_LINESNGL; | |
4429 | *fpc++ = FF_CHOP; | |
4430 | } else | |
4431 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4432 | } |
4433 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4434 | arg = ischop ? 512 : 0; | |
4435 | base = s - 1; | |
4436 | while (*s == '#') | |
4437 | s++; | |
4438 | if (*s == '.') { | |
06b5626a | 4439 | const char * const f = ++s; |
a0d0e21e LW |
4440 | while (*s == '#') |
4441 | s++; | |
4442 | arg |= 256 + (s - f); | |
4443 | } | |
4444 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4445 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4446 | *fpc++ = (U16)arg; |
a1b95068 | 4447 | unchopnum |= ! ischop; |
784707d5 JP |
4448 | } |
4449 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4450 | arg = ischop ? 512 : 0; | |
4451 | base = s - 1; | |
4452 | s++; /* skip the '0' first */ | |
4453 | while (*s == '#') | |
4454 | s++; | |
4455 | if (*s == '.') { | |
06b5626a | 4456 | const char * const f = ++s; |
784707d5 JP |
4457 | while (*s == '#') |
4458 | s++; | |
4459 | arg |= 256 + (s - f); | |
4460 | } | |
4461 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4462 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4463 | *fpc++ = (U16)arg; |
a1b95068 | 4464 | unchopnum |= ! ischop; |
a0d0e21e LW |
4465 | } |
4466 | else { | |
4467 | I32 prespace = 0; | |
4468 | bool ismore = FALSE; | |
4469 | ||
4470 | if (*s == '>') { | |
4471 | while (*++s == '>') ; | |
4472 | prespace = FF_SPACE; | |
4473 | } | |
4474 | else if (*s == '|') { | |
4475 | while (*++s == '|') ; | |
4476 | prespace = FF_HALFSPACE; | |
4477 | postspace = TRUE; | |
4478 | } | |
4479 | else { | |
4480 | if (*s == '<') | |
4481 | while (*++s == '<') ; | |
4482 | postspace = TRUE; | |
4483 | } | |
4484 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4485 | s += 3; | |
4486 | ismore = TRUE; | |
4487 | } | |
4488 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4489 | ||
4490 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4491 | ||
4492 | if (prespace) | |
eb160463 | 4493 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4494 | *fpc++ = FF_ITEM; |
4495 | if (ismore) | |
4496 | *fpc++ = FF_MORE; | |
4497 | if (ischop) | |
4498 | *fpc++ = FF_CHOP; | |
4499 | } | |
4500 | base = s; | |
4501 | skipspaces = 0; | |
4502 | continue; | |
4503 | } | |
4504 | } | |
4505 | *fpc++ = FF_END; | |
4506 | ||
815f25c6 | 4507 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4508 | arg = fpc - fops; |
4509 | { /* need to jump to the next word */ | |
4510 | int z; | |
4511 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4512 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4513 | s = SvPVX(sv) + SvCUR(sv) + z; |
4514 | } | |
dea28490 | 4515 | Copy(fops, s, arg, U32); |
a0d0e21e | 4516 | Safefree(fops); |
c445ea15 | 4517 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4518 | SvCOMPILED_on(sv); |
a1b95068 | 4519 | |
bfed75c6 | 4520 | if (unchopnum && repeat) |
a1b95068 WL |
4521 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4522 | return 0; | |
4523 | } | |
4524 | ||
4525 | ||
4526 | STATIC bool | |
4527 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4528 | { | |
4529 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4530 | NV pwr = 1; | |
4531 | NV eps = 0.5; | |
4532 | bool res = FALSE; | |
4533 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4534 | ||
4535 | if (frcsize & 256) | |
4536 | intsize--; | |
4537 | frcsize &= 255; | |
4538 | intsize -= frcsize; | |
4539 | ||
4540 | while (intsize--) pwr *= 10.0; | |
4541 | while (frcsize--) eps /= 10.0; | |
4542 | ||
4543 | if( value >= 0 ){ | |
4544 | if (value + eps >= pwr) | |
4545 | res = TRUE; | |
4546 | } else { | |
4547 | if (value - eps <= -pwr) | |
4548 | res = TRUE; | |
4549 | } | |
4550 | return res; | |
a0d0e21e | 4551 | } |
4e35701f | 4552 | |
bbed91b5 | 4553 | static I32 |
0bd48802 | 4554 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4555 | { |
27da23d5 | 4556 | dVAR; |
0bd48802 | 4557 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4558 | const int filter_has_file = IoLINES(datasv); |
0bd48802 AL |
4559 | SV * const filter_state = (SV *)IoTOP_GV(datasv); |
4560 | SV * const filter_sub = (SV *)IoBOTTOM_GV(datasv); | |
941a98a0 | 4561 | int status = 0; |
ec0b63d7 | 4562 | SV *upstream; |
941a98a0 | 4563 | STRLEN got_len; |
95b63a38 | 4564 | const char *got_p = NULL; |
941a98a0 | 4565 | const char *prune_from = NULL; |
34113e50 | 4566 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4567 | STRLEN umaxlen; |
4568 | ||
4569 | assert(maxlen >= 0); | |
4570 | umaxlen = maxlen; | |
5675696b | 4571 | |
bbed91b5 KF |
4572 | /* I was having segfault trouble under Linux 2.2.5 after a |
4573 | parse error occured. (Had to hack around it with a test | |
4574 | for PL_error_count == 0.) Solaris doesn't segfault -- | |
4575 | not sure where the trouble is yet. XXX */ | |
4576 | ||
941a98a0 | 4577 | if (IoFMT_GV(datasv)) { |
937b367d NC |
4578 | SV *const cache = (SV *)IoFMT_GV(datasv); |
4579 | if (SvOK(cache)) { | |
4580 | STRLEN cache_len; | |
4581 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4582 | STRLEN take = 0; |
4583 | ||
bb7a0f54 | 4584 | if (umaxlen) { |
941a98a0 NC |
4585 | /* Running in block mode and we have some cached data already. |
4586 | */ | |
bb7a0f54 | 4587 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4588 | /* In fact, so much data we don't even need to call |
4589 | filter_read. */ | |
bb7a0f54 | 4590 | take = umaxlen; |
941a98a0 NC |
4591 | } |
4592 | } else { | |
4593 | const char *const first_nl = memchr(cache_p, '\n', cache_len); | |
4594 | if (first_nl) { | |
4595 | take = first_nl + 1 - cache_p; | |
4596 | } | |
4597 | } | |
4598 | if (take) { | |
4599 | sv_catpvn(buf_sv, cache_p, take); | |
4600 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4601 | /* Definately not EOF */ |
4602 | return 1; | |
4603 | } | |
941a98a0 | 4604 | |
937b367d | 4605 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4606 | if (umaxlen) { |
4607 | umaxlen -= cache_len; | |
941a98a0 | 4608 | } |
937b367d | 4609 | SvOK_off(cache); |
34113e50 | 4610 | read_from_cache = TRUE; |
937b367d NC |
4611 | } |
4612 | } | |
ec0b63d7 | 4613 | |
34113e50 NC |
4614 | /* Filter API says that the filter appends to the contents of the buffer. |
4615 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4616 | then clearly what it contains is already filtered by this filter, so we | |
4617 | don't want to pass it in a second time. | |
4618 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4619 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4620 | ? sv_newmortal() : buf_sv; | |
4621 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4622 | |
bbed91b5 | 4623 | if (filter_has_file) { |
67e70b33 | 4624 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4625 | } |
4626 | ||
34113e50 | 4627 | if (filter_sub && status >= 0) { |
39644a26 | 4628 | dSP; |
bbed91b5 KF |
4629 | int count; |
4630 | ||
4631 | ENTER; | |
4632 | SAVE_DEFSV; | |
4633 | SAVETMPS; | |
4634 | EXTEND(SP, 2); | |
4635 | ||
5675696b | 4636 | DEFSV = upstream; |
bbed91b5 | 4637 | PUSHMARK(SP); |
67e70b33 | 4638 | PUSHs(sv_2mortal(newSViv(0))); |
bbed91b5 KF |
4639 | if (filter_state) { |
4640 | PUSHs(filter_state); | |
4641 | } | |
4642 | PUTBACK; | |
4643 | count = call_sv(filter_sub, G_SCALAR); | |
4644 | SPAGAIN; | |
4645 | ||
4646 | if (count > 0) { | |
4647 | SV *out = POPs; | |
4648 | if (SvOK(out)) { | |
941a98a0 | 4649 | status = SvIV(out); |
bbed91b5 KF |
4650 | } |
4651 | } | |
4652 | ||
4653 | PUTBACK; | |
4654 | FREETMPS; | |
4655 | LEAVE; | |
4656 | } | |
4657 | ||
941a98a0 NC |
4658 | if(SvOK(upstream)) { |
4659 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4660 | if (umaxlen) { |
4661 | if (got_len > umaxlen) { | |
4662 | prune_from = got_p + umaxlen; | |
937b367d | 4663 | } |
941a98a0 NC |
4664 | } else { |
4665 | const char *const first_nl = memchr(got_p, '\n', got_len); | |
4666 | if (first_nl && first_nl + 1 < got_p + got_len) { | |
4667 | /* There's a second line here... */ | |
4668 | prune_from = first_nl + 1; | |
937b367d | 4669 | } |
937b367d NC |
4670 | } |
4671 | } | |
941a98a0 NC |
4672 | if (prune_from) { |
4673 | /* Oh. Too long. Stuff some in our cache. */ | |
4674 | STRLEN cached_len = got_p + got_len - prune_from; | |
4675 | SV *cache = (SV *)IoFMT_GV(datasv); | |
4676 | ||
4677 | if (!cache) { | |
bb7a0f54 | 4678 | IoFMT_GV(datasv) = (GV*) (cache = newSV(got_len - umaxlen)); |
941a98a0 NC |
4679 | } else if (SvOK(cache)) { |
4680 | /* Cache should be empty. */ | |
4681 | assert(!SvCUR(cache)); | |
4682 | } | |
4683 | ||
4684 | sv_setpvn(cache, prune_from, cached_len); | |
4685 | /* If you ask for block mode, you may well split UTF-8 characters. | |
4686 | "If it breaks, you get to keep both parts" | |
4687 | (Your code is broken if you don't put them back together again | |
4688 | before something notices.) */ | |
4689 | if (SvUTF8(upstream)) { | |
4690 | SvUTF8_on(cache); | |
4691 | } | |
4692 | SvCUR_set(upstream, got_len - cached_len); | |
4693 | /* Can't yet be EOF */ | |
4694 | if (status == 0) | |
4695 | status = 1; | |
4696 | } | |
937b367d | 4697 | |
34113e50 NC |
4698 | /* If they are at EOF but buf_sv has something in it, then they may never |
4699 | have touched the SV upstream, so it may be undefined. If we naively | |
4700 | concatenate it then we get a warning about use of uninitialised value. | |
4701 | */ | |
4702 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
4703 | sv_catsv(buf_sv, upstream); |
4704 | } | |
4705 | ||
941a98a0 | 4706 | if (status <= 0) { |
bbed91b5 | 4707 | IoLINES(datasv) = 0; |
937b367d | 4708 | SvREFCNT_dec(IoFMT_GV(datasv)); |
bbed91b5 KF |
4709 | if (filter_state) { |
4710 | SvREFCNT_dec(filter_state); | |
a0714e2c | 4711 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
4712 | } |
4713 | if (filter_sub) { | |
4714 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 4715 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 4716 | } |
0bd48802 | 4717 | filter_del(S_run_user_filter); |
bbed91b5 | 4718 | } |
34113e50 NC |
4719 | if (status == 0 && read_from_cache) { |
4720 | /* If we read some data from the cache (and by getting here it implies | |
4721 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
4722 | report that to our caller. */ | |
4723 | return 1; | |
4724 | } | |
941a98a0 | 4725 | return status; |
bbed91b5 | 4726 | } |
84d4ea48 | 4727 | |
be4b629d CN |
4728 | /* perhaps someone can come up with a better name for |
4729 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 4730 | static bool |
5f66b61c | 4731 | S_path_is_absolute(const char *name) |
be4b629d CN |
4732 | { |
4733 | if (PERL_FILE_IS_ABSOLUTE(name) | |
4734 | #ifdef MACOS_TRADITIONAL | |
0bd48802 | 4735 | || (*name == ':') |
be4b629d CN |
4736 | #else |
4737 | || (*name == '.' && (name[1] == '/' || | |
0bd48802 | 4738 | (name[1] == '.' && name[2] == '/'))) |
be4b629d | 4739 | #endif |
0bd48802 | 4740 | ) |
be4b629d CN |
4741 | { |
4742 | return TRUE; | |
4743 | } | |
4744 | else | |
4745 | return FALSE; | |
4746 | } | |
241d1a3b NC |
4747 | |
4748 | /* | |
4749 | * Local variables: | |
4750 | * c-indentation-style: bsd | |
4751 | * c-basic-offset: 4 | |
4752 | * indent-tabs-mode: t | |
4753 | * End: | |
4754 | * | |
37442d52 RGS |
4755 | * ex: set ts=8 sts=4 sw=4 noet: |
4756 | */ |