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)) { |
227a8b4b | 116 | SV *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); | |
c277df42 | 128 | |
20408e3c | 129 | /* Check against the last compiled regexp. */ |
aaa362c4 | 130 | if (!PM_GETRE(pm) || !PM_GETRE(pm)->precomp || |
eb160463 | 131 | PM_GETRE(pm)->prelen != (I32)len || |
aaa362c4 | 132 | memNE(PM_GETRE(pm)->precomp, t, len)) |
85aff577 | 133 | { |
aaa362c4 | 134 | if (PM_GETRE(pm)) { |
d8f2cf8a | 135 | ReREFCNT_dec(PM_GETRE(pm)); |
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))) { |
c445ea15 | 287 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
14befaf4 | 288 | mg = mg_find(sv, PERL_MAGIC_regex_global); |
084916e3 JH |
289 | } |
290 | i = m - orig; | |
291 | if (DO_UTF8(sv)) | |
292 | sv_pos_b2u(sv, &i); | |
293 | mg->mg_len = i; | |
294 | } | |
988e6e7e | 295 | if (old != rx) |
454f1e26 | 296 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
297 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
298 | rxres_save(&cx->sb_rxres, rx); | |
a0d0e21e LW |
299 | RETURNOP(pm->op_pmreplstart); |
300 | } | |
301 | ||
c90c0ff4 | 302 | void |
864dbfa3 | 303 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 304 | { |
305 | UV *p = (UV*)*rsp; | |
306 | U32 i; | |
96a5add6 | 307 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 308 | |
d9f97599 | 309 | if (!p || p[1] < rx->nparens) { |
f8c7b90f | 310 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
311 | i = 7 + rx->nparens * 2; |
312 | #else | |
d9f97599 | 313 | i = 6 + rx->nparens * 2; |
ed252734 | 314 | #endif |
c90c0ff4 | 315 | if (!p) |
a02a5408 | 316 | Newx(p, i, UV); |
c90c0ff4 | 317 | else |
318 | Renew(p, i, UV); | |
319 | *rsp = (void*)p; | |
320 | } | |
321 | ||
c445ea15 | 322 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? rx->subbeg : NULL); |
cf93c79d | 323 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 324 | |
f8c7b90f | 325 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 | 326 | *p++ = PTR2UV(rx->saved_copy); |
c445ea15 | 327 | rx->saved_copy = NULL; |
ed252734 NC |
328 | #endif |
329 | ||
d9f97599 | 330 | *p++ = rx->nparens; |
c90c0ff4 | 331 | |
56431972 | 332 | *p++ = PTR2UV(rx->subbeg); |
cf93c79d | 333 | *p++ = (UV)rx->sublen; |
d9f97599 GS |
334 | for (i = 0; i <= rx->nparens; ++i) { |
335 | *p++ = (UV)rx->startp[i]; | |
336 | *p++ = (UV)rx->endp[i]; | |
c90c0ff4 | 337 | } |
338 | } | |
339 | ||
340 | void | |
864dbfa3 | 341 | Perl_rxres_restore(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 342 | { |
343 | UV *p = (UV*)*rsp; | |
344 | U32 i; | |
96a5add6 | 345 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 346 | |
ed252734 | 347 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 348 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 349 | *p++ = 0; |
350 | ||
f8c7b90f | 351 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
352 | if (rx->saved_copy) |
353 | SvREFCNT_dec (rx->saved_copy); | |
354 | rx->saved_copy = INT2PTR(SV*,*p); | |
355 | *p++ = 0; | |
356 | #endif | |
357 | ||
d9f97599 | 358 | rx->nparens = *p++; |
c90c0ff4 | 359 | |
56431972 | 360 | rx->subbeg = INT2PTR(char*,*p++); |
cf93c79d | 361 | rx->sublen = (I32)(*p++); |
d9f97599 | 362 | for (i = 0; i <= rx->nparens; ++i) { |
cf93c79d IZ |
363 | rx->startp[i] = (I32)(*p++); |
364 | rx->endp[i] = (I32)(*p++); | |
c90c0ff4 | 365 | } |
366 | } | |
367 | ||
368 | void | |
864dbfa3 | 369 | Perl_rxres_free(pTHX_ void **rsp) |
c90c0ff4 | 370 | { |
44f8325f | 371 | UV * const p = (UV*)*rsp; |
96a5add6 | 372 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 373 | |
374 | if (p) { | |
94010e71 NC |
375 | #ifdef PERL_POISON |
376 | void *tmp = INT2PTR(char*,*p); | |
377 | Safefree(tmp); | |
378 | if (*p) | |
379 | Poison(*p, 1, sizeof(*p)); | |
380 | #else | |
56431972 | 381 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 382 | #endif |
f8c7b90f | 383 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
384 | if (p[1]) { |
385 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
386 | } | |
387 | #endif | |
c90c0ff4 | 388 | Safefree(p); |
4608196e | 389 | *rsp = NULL; |
c90c0ff4 | 390 | } |
391 | } | |
392 | ||
a0d0e21e LW |
393 | PP(pp_formline) |
394 | { | |
97aff369 | 395 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 396 | register SV * const tmpForm = *++MARK; |
dea28490 | 397 | register U32 *fpc; |
a0d0e21e | 398 | register char *t; |
245d4a47 | 399 | const char *f; |
a0d0e21e | 400 | register I32 arg; |
c445ea15 AL |
401 | register SV *sv = NULL; |
402 | const char *item = NULL; | |
9c5ffd7c JH |
403 | I32 itemsize = 0; |
404 | I32 fieldsize = 0; | |
a0d0e21e | 405 | I32 lines = 0; |
c445ea15 AL |
406 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
407 | const char *chophere = NULL; | |
408 | char *linemark = NULL; | |
65202027 | 409 | NV value; |
9c5ffd7c | 410 | bool gotsome = FALSE; |
a0d0e21e | 411 | STRLEN len; |
823a54a3 | 412 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 413 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
414 | bool item_is_utf8 = FALSE; |
415 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 416 | SV * nsv = NULL; |
cbbf8932 | 417 | OP * parseres = NULL; |
bfed75c6 | 418 | const char *fmt; |
a1b95068 | 419 | bool oneline; |
a0d0e21e | 420 | |
76e3520e | 421 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
422 | if (SvREADONLY(tmpForm)) { |
423 | SvREADONLY_off(tmpForm); | |
a1b95068 | 424 | parseres = doparseform(tmpForm); |
445b3f51 GS |
425 | SvREADONLY_on(tmpForm); |
426 | } | |
427 | else | |
a1b95068 WL |
428 | parseres = doparseform(tmpForm); |
429 | if (parseres) | |
430 | return parseres; | |
a0d0e21e | 431 | } |
3280af22 | 432 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
433 | if (DO_UTF8(PL_formtarget)) |
434 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 435 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 436 | t += len; |
245d4a47 | 437 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 438 | /* need to jump to the next word */ |
245d4a47 | 439 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
440 | |
441 | for (;;) { | |
442 | DEBUG_f( { | |
bfed75c6 | 443 | const char *name = "???"; |
a0d0e21e LW |
444 | arg = -1; |
445 | switch (*fpc) { | |
446 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
447 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
448 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
449 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
450 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
451 | ||
452 | case FF_CHECKNL: name = "CHECKNL"; break; | |
453 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
454 | case FF_SPACE: name = "SPACE"; break; | |
455 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
456 | case FF_ITEM: name = "ITEM"; break; | |
457 | case FF_CHOP: name = "CHOP"; break; | |
458 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
459 | case FF_NEWLINE: name = "NEWLINE"; break; | |
460 | case FF_MORE: name = "MORE"; break; | |
461 | case FF_LINEMARK: name = "LINEMARK"; break; | |
462 | case FF_END: name = "END"; break; | |
bfed75c6 | 463 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 464 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
465 | } |
466 | if (arg >= 0) | |
bf49b057 | 467 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 468 | else |
bf49b057 | 469 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 470 | } ); |
a0d0e21e LW |
471 | switch (*fpc++) { |
472 | case FF_LINEMARK: | |
473 | linemark = t; | |
a0d0e21e LW |
474 | lines++; |
475 | gotsome = FALSE; | |
476 | break; | |
477 | ||
478 | case FF_LITERAL: | |
479 | arg = *fpc++; | |
1bd51a4c | 480 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 481 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
482 | *t = '\0'; |
483 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
484 | t = SvEND(PL_formtarget); | |
1bd51a4c IH |
485 | break; |
486 | } | |
487 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 488 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
489 | *t = '\0'; |
490 | sv_utf8_upgrade(PL_formtarget); | |
491 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
492 | t = SvEND(PL_formtarget); | |
493 | targ_is_utf8 = TRUE; | |
494 | } | |
a0d0e21e LW |
495 | while (arg--) |
496 | *t++ = *f++; | |
497 | break; | |
498 | ||
499 | case FF_SKIP: | |
500 | f += *fpc++; | |
501 | break; | |
502 | ||
503 | case FF_FETCH: | |
504 | arg = *fpc++; | |
505 | f += arg; | |
506 | fieldsize = arg; | |
507 | ||
508 | if (MARK < SP) | |
509 | sv = *++MARK; | |
510 | else { | |
3280af22 | 511 | sv = &PL_sv_no; |
599cee73 | 512 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 513 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
514 | } |
515 | break; | |
516 | ||
517 | case FF_CHECKNL: | |
5a34cab7 NC |
518 | { |
519 | const char *send; | |
520 | const char *s = item = SvPV_const(sv, len); | |
521 | itemsize = len; | |
522 | if (DO_UTF8(sv)) { | |
523 | itemsize = sv_len_utf8(sv); | |
524 | if (itemsize != (I32)len) { | |
525 | I32 itembytes; | |
526 | if (itemsize > fieldsize) { | |
527 | itemsize = fieldsize; | |
528 | itembytes = itemsize; | |
529 | sv_pos_u2b(sv, &itembytes, 0); | |
530 | } | |
531 | else | |
532 | itembytes = len; | |
533 | send = chophere = s + itembytes; | |
534 | while (s < send) { | |
535 | if (*s & ~31) | |
536 | gotsome = TRUE; | |
537 | else if (*s == '\n') | |
538 | break; | |
539 | s++; | |
540 | } | |
541 | item_is_utf8 = TRUE; | |
542 | itemsize = s - item; | |
543 | sv_pos_b2u(sv, &itemsize); | |
544 | break; | |
a0ed51b3 | 545 | } |
a0ed51b3 | 546 | } |
5a34cab7 NC |
547 | item_is_utf8 = FALSE; |
548 | if (itemsize > fieldsize) | |
549 | itemsize = fieldsize; | |
550 | send = chophere = s + itemsize; | |
551 | while (s < send) { | |
552 | if (*s & ~31) | |
553 | gotsome = TRUE; | |
554 | else if (*s == '\n') | |
555 | break; | |
556 | s++; | |
557 | } | |
558 | itemsize = s - item; | |
559 | break; | |
a0ed51b3 | 560 | } |
a0d0e21e LW |
561 | |
562 | case FF_CHECKCHOP: | |
5a34cab7 NC |
563 | { |
564 | const char *s = item = SvPV_const(sv, len); | |
565 | itemsize = len; | |
566 | if (DO_UTF8(sv)) { | |
567 | itemsize = sv_len_utf8(sv); | |
568 | if (itemsize != (I32)len) { | |
569 | I32 itembytes; | |
570 | if (itemsize <= fieldsize) { | |
571 | const char *send = chophere = s + itemsize; | |
572 | while (s < send) { | |
573 | if (*s == '\r') { | |
574 | itemsize = s - item; | |
a0ed51b3 | 575 | chophere = s; |
a0ed51b3 | 576 | break; |
5a34cab7 NC |
577 | } |
578 | if (*s++ & ~31) | |
a0ed51b3 | 579 | gotsome = TRUE; |
a0ed51b3 | 580 | } |
a0ed51b3 | 581 | } |
5a34cab7 NC |
582 | else { |
583 | const char *send; | |
584 | itemsize = fieldsize; | |
585 | itembytes = itemsize; | |
586 | sv_pos_u2b(sv, &itembytes, 0); | |
587 | send = chophere = s + itembytes; | |
588 | while (s < send || (s == send && isSPACE(*s))) { | |
589 | if (isSPACE(*s)) { | |
590 | if (chopspace) | |
591 | chophere = s; | |
592 | if (*s == '\r') | |
593 | break; | |
594 | } | |
595 | else { | |
596 | if (*s & ~31) | |
597 | gotsome = TRUE; | |
598 | if (strchr(PL_chopset, *s)) | |
599 | chophere = s + 1; | |
600 | } | |
601 | s++; | |
602 | } | |
603 | itemsize = chophere - item; | |
604 | sv_pos_b2u(sv, &itemsize); | |
605 | } | |
606 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
607 | break; |
608 | } | |
a0d0e21e | 609 | } |
5a34cab7 NC |
610 | item_is_utf8 = FALSE; |
611 | if (itemsize <= fieldsize) { | |
612 | const char *const send = chophere = s + itemsize; | |
613 | while (s < send) { | |
614 | if (*s == '\r') { | |
615 | itemsize = s - item; | |
a0d0e21e | 616 | chophere = s; |
a0d0e21e | 617 | break; |
5a34cab7 NC |
618 | } |
619 | if (*s++ & ~31) | |
a0d0e21e | 620 | gotsome = TRUE; |
a0d0e21e | 621 | } |
a0d0e21e | 622 | } |
5a34cab7 NC |
623 | else { |
624 | const char *send; | |
625 | itemsize = fieldsize; | |
626 | send = chophere = s + itemsize; | |
627 | while (s < send || (s == send && isSPACE(*s))) { | |
628 | if (isSPACE(*s)) { | |
629 | if (chopspace) | |
630 | chophere = s; | |
631 | if (*s == '\r') | |
632 | break; | |
633 | } | |
634 | else { | |
635 | if (*s & ~31) | |
636 | gotsome = TRUE; | |
637 | if (strchr(PL_chopset, *s)) | |
638 | chophere = s + 1; | |
639 | } | |
640 | s++; | |
641 | } | |
642 | itemsize = chophere - item; | |
643 | } | |
644 | break; | |
a0d0e21e | 645 | } |
a0d0e21e LW |
646 | |
647 | case FF_SPACE: | |
648 | arg = fieldsize - itemsize; | |
649 | if (arg) { | |
650 | fieldsize -= arg; | |
651 | while (arg-- > 0) | |
652 | *t++ = ' '; | |
653 | } | |
654 | break; | |
655 | ||
656 | case FF_HALFSPACE: | |
657 | arg = fieldsize - itemsize; | |
658 | if (arg) { | |
659 | arg /= 2; | |
660 | fieldsize -= arg; | |
661 | while (arg-- > 0) | |
662 | *t++ = ' '; | |
663 | } | |
664 | break; | |
665 | ||
666 | case FF_ITEM: | |
5a34cab7 NC |
667 | { |
668 | const char *s = item; | |
669 | arg = itemsize; | |
670 | if (item_is_utf8) { | |
671 | if (!targ_is_utf8) { | |
672 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
673 | *t = '\0'; | |
674 | sv_utf8_upgrade(PL_formtarget); | |
675 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
676 | t = SvEND(PL_formtarget); | |
677 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 678 | } |
5a34cab7 NC |
679 | while (arg--) { |
680 | if (UTF8_IS_CONTINUED(*s)) { | |
681 | STRLEN skip = UTF8SKIP(s); | |
682 | switch (skip) { | |
683 | default: | |
684 | Move(s,t,skip,char); | |
685 | s += skip; | |
686 | t += skip; | |
687 | break; | |
688 | case 7: *t++ = *s++; | |
689 | case 6: *t++ = *s++; | |
690 | case 5: *t++ = *s++; | |
691 | case 4: *t++ = *s++; | |
692 | case 3: *t++ = *s++; | |
693 | case 2: *t++ = *s++; | |
694 | case 1: *t++ = *s++; | |
695 | } | |
696 | } | |
697 | else { | |
698 | if ( !((*t++ = *s++) & ~31) ) | |
699 | t[-1] = ' '; | |
700 | } | |
a0ed51b3 | 701 | } |
5a34cab7 | 702 | break; |
a0ed51b3 | 703 | } |
5a34cab7 NC |
704 | if (targ_is_utf8 && !item_is_utf8) { |
705 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
706 | *t = '\0'; | |
707 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
708 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 709 | #ifdef EBCDIC |
901017d6 | 710 | const int ch = *t; |
5a34cab7 | 711 | if (iscntrl(ch)) |
78da4d13 | 712 | #else |
5a34cab7 | 713 | if (!(*t & ~31)) |
78da4d13 | 714 | #endif |
5a34cab7 NC |
715 | *t = ' '; |
716 | } | |
717 | break; | |
78da4d13 | 718 | } |
5a34cab7 | 719 | while (arg--) { |
9d116dd7 | 720 | #ifdef EBCDIC |
901017d6 | 721 | const int ch = *t++ = *s++; |
5a34cab7 | 722 | if (iscntrl(ch)) |
a0d0e21e | 723 | #else |
5a34cab7 | 724 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 725 | #endif |
5a34cab7 NC |
726 | t[-1] = ' '; |
727 | } | |
728 | break; | |
a0d0e21e | 729 | } |
a0d0e21e LW |
730 | |
731 | case FF_CHOP: | |
5a34cab7 NC |
732 | { |
733 | const char *s = chophere; | |
734 | if (chopspace) { | |
af68e756 | 735 | while (isSPACE(*s)) |
5a34cab7 NC |
736 | s++; |
737 | } | |
738 | sv_chop(sv,s); | |
739 | SvSETMAGIC(sv); | |
740 | break; | |
a0d0e21e | 741 | } |
a0d0e21e | 742 | |
a1b95068 WL |
743 | case FF_LINESNGL: |
744 | chopspace = 0; | |
745 | oneline = TRUE; | |
746 | goto ff_line; | |
a0d0e21e | 747 | case FF_LINEGLOB: |
a1b95068 WL |
748 | oneline = FALSE; |
749 | ff_line: | |
5a34cab7 NC |
750 | { |
751 | const char *s = item = SvPV_const(sv, len); | |
752 | itemsize = len; | |
753 | if ((item_is_utf8 = DO_UTF8(sv))) | |
754 | itemsize = sv_len_utf8(sv); | |
755 | if (itemsize) { | |
756 | bool chopped = FALSE; | |
757 | const char *const send = s + len; | |
758 | gotsome = TRUE; | |
759 | chophere = s + itemsize; | |
760 | while (s < send) { | |
761 | if (*s++ == '\n') { | |
762 | if (oneline) { | |
763 | chopped = TRUE; | |
764 | chophere = s; | |
765 | break; | |
766 | } else { | |
767 | if (s == send) { | |
768 | itemsize--; | |
769 | chopped = TRUE; | |
770 | } else | |
771 | lines++; | |
772 | } | |
1bd51a4c | 773 | } |
a0d0e21e | 774 | } |
5a34cab7 NC |
775 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
776 | if (targ_is_utf8) | |
777 | SvUTF8_on(PL_formtarget); | |
778 | if (oneline) { | |
779 | SvCUR_set(sv, chophere - item); | |
780 | sv_catsv(PL_formtarget, sv); | |
781 | SvCUR_set(sv, itemsize); | |
782 | } else | |
783 | sv_catsv(PL_formtarget, sv); | |
784 | if (chopped) | |
785 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1); | |
786 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
787 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); | |
788 | if (item_is_utf8) | |
789 | targ_is_utf8 = TRUE; | |
a0d0e21e | 790 | } |
5a34cab7 | 791 | break; |
a0d0e21e | 792 | } |
a0d0e21e | 793 | |
a1b95068 WL |
794 | case FF_0DECIMAL: |
795 | arg = *fpc++; | |
796 | #if defined(USE_LONG_DOUBLE) | |
797 | fmt = (arg & 256) ? "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl; | |
798 | #else | |
799 | fmt = (arg & 256) ? "%#0*.*f" : "%0*.*f"; | |
800 | #endif | |
801 | goto ff_dec; | |
a0d0e21e | 802 | case FF_DECIMAL: |
a0d0e21e | 803 | arg = *fpc++; |
65202027 | 804 | #if defined(USE_LONG_DOUBLE) |
a1b95068 | 805 | fmt = (arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl; |
65202027 | 806 | #else |
a1b95068 | 807 | fmt = (arg & 256) ? "%#*.*f" : "%*.*f"; |
65202027 | 808 | #endif |
a1b95068 | 809 | ff_dec: |
784707d5 JP |
810 | /* If the field is marked with ^ and the value is undefined, |
811 | blank it out. */ | |
784707d5 JP |
812 | if ((arg & 512) && !SvOK(sv)) { |
813 | arg = fieldsize; | |
814 | while (arg--) | |
815 | *t++ = ' '; | |
816 | break; | |
817 | } | |
818 | gotsome = TRUE; | |
819 | value = SvNV(sv); | |
a1b95068 | 820 | /* overflow evidence */ |
bfed75c6 | 821 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
822 | arg = fieldsize; |
823 | while (arg--) | |
824 | *t++ = '#'; | |
825 | break; | |
826 | } | |
784707d5 JP |
827 | /* Formats aren't yet marked for locales, so assume "yes". */ |
828 | { | |
829 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
a1b95068 | 830 | sprintf(t, fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
831 | RESTORE_NUMERIC_STANDARD(); |
832 | } | |
833 | t += fieldsize; | |
834 | break; | |
a1b95068 | 835 | |
a0d0e21e LW |
836 | case FF_NEWLINE: |
837 | f++; | |
838 | while (t-- > linemark && *t == ' ') ; | |
839 | t++; | |
840 | *t++ = '\n'; | |
841 | break; | |
842 | ||
843 | case FF_BLANK: | |
844 | arg = *fpc++; | |
845 | if (gotsome) { | |
846 | if (arg) { /* repeat until fields exhausted? */ | |
847 | *t = '\0'; | |
b15aece3 | 848 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 849 | lines += FmLINES(PL_formtarget); |
a0d0e21e LW |
850 | if (lines == 200) { |
851 | arg = t - linemark; | |
852 | if (strnEQ(linemark, linemark - arg, arg)) | |
cea2e8a9 | 853 | DIE(aTHX_ "Runaway format"); |
a0d0e21e | 854 | } |
1bd51a4c IH |
855 | if (targ_is_utf8) |
856 | SvUTF8_on(PL_formtarget); | |
3280af22 | 857 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
858 | SP = ORIGMARK; |
859 | RETURNOP(cLISTOP->op_first); | |
860 | } | |
861 | } | |
862 | else { | |
863 | t = linemark; | |
864 | lines--; | |
865 | } | |
866 | break; | |
867 | ||
868 | case FF_MORE: | |
5a34cab7 NC |
869 | { |
870 | const char *s = chophere; | |
871 | const char *send = item + len; | |
872 | if (chopspace) { | |
af68e756 | 873 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 874 | s++; |
a0d0e21e | 875 | } |
5a34cab7 NC |
876 | if (s < send) { |
877 | char *s1; | |
878 | arg = fieldsize - itemsize; | |
879 | if (arg) { | |
880 | fieldsize -= arg; | |
881 | while (arg-- > 0) | |
882 | *t++ = ' '; | |
883 | } | |
884 | s1 = t - 3; | |
885 | if (strnEQ(s1," ",3)) { | |
886 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
887 | s1--; | |
888 | } | |
889 | *s1++ = '.'; | |
890 | *s1++ = '.'; | |
891 | *s1++ = '.'; | |
a0d0e21e | 892 | } |
5a34cab7 | 893 | break; |
a0d0e21e | 894 | } |
a0d0e21e LW |
895 | case FF_END: |
896 | *t = '\0'; | |
b15aece3 | 897 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
898 | if (targ_is_utf8) |
899 | SvUTF8_on(PL_formtarget); | |
3280af22 | 900 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
901 | SP = ORIGMARK; |
902 | RETPUSHYES; | |
903 | } | |
904 | } | |
905 | } | |
906 | ||
907 | PP(pp_grepstart) | |
908 | { | |
27da23d5 | 909 | dVAR; dSP; |
a0d0e21e LW |
910 | SV *src; |
911 | ||
3280af22 | 912 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 913 | (void)POPMARK; |
54310121 | 914 | if (GIMME_V == G_SCALAR) |
0b024f31 | 915 | XPUSHs(sv_2mortal(newSViv(0))); |
533c011a | 916 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 917 | } |
3280af22 | 918 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
919 | pp_pushmark(); /* push dst */ |
920 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
921 | ENTER; /* enter outer scope */ |
922 | ||
923 | SAVETMPS; | |
59f00321 RGS |
924 | if (PL_op->op_private & OPpGREP_LEX) |
925 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
926 | else | |
927 | SAVE_DEFSV; | |
a0d0e21e | 928 | ENTER; /* enter inner scope */ |
7766f137 | 929 | SAVEVPTR(PL_curpm); |
a0d0e21e | 930 | |
3280af22 | 931 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 932 | SvTEMP_off(src); |
59f00321 RGS |
933 | if (PL_op->op_private & OPpGREP_LEX) |
934 | PAD_SVl(PL_op->op_targ) = src; | |
935 | else | |
936 | DEFSV = src; | |
a0d0e21e LW |
937 | |
938 | PUTBACK; | |
533c011a | 939 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 940 | pp_pushmark(); /* push top */ |
533c011a | 941 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
942 | } |
943 | ||
a0d0e21e LW |
944 | PP(pp_mapwhile) |
945 | { | |
27da23d5 | 946 | dVAR; dSP; |
f54cb97a | 947 | const I32 gimme = GIMME_V; |
544f3153 | 948 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
949 | I32 count; |
950 | I32 shift; | |
951 | SV** src; | |
ac27b0f5 | 952 | SV** dst; |
a0d0e21e | 953 | |
544f3153 | 954 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 955 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
956 | |
957 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 958 | if (items && gimme != G_VOID) { |
544f3153 GS |
959 | /* might need to make room back there first */ |
960 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
961 | /* XXX this implementation is very pessimal because the stack | |
962 | * is repeatedly extended for every set of items. Is possible | |
963 | * to do this without any stack extension or copying at all | |
964 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 965 | * (like foreach does). --gsar */ |
544f3153 GS |
966 | |
967 | /* everything in the stack after the destination list moves | |
968 | * towards the end the stack by the amount of room needed */ | |
969 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
970 | ||
971 | /* items to shift up (accounting for the moved source pointer) */ | |
972 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
973 | |
974 | /* This optimization is by Ben Tilly and it does | |
975 | * things differently from what Sarathy (gsar) | |
976 | * is describing. The downside of this optimization is | |
977 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
978 | * to the Perl stack, but on the other hand this | |
979 | * shouldn't be a problem. If Sarathy's idea gets | |
980 | * implemented, this optimization should become | |
981 | * irrelevant. --jhi */ | |
982 | if (shift < count) | |
983 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 984 | |
924508f0 GS |
985 | EXTEND(SP,shift); |
986 | src = SP; | |
987 | dst = (SP += shift); | |
3280af22 NIS |
988 | PL_markstack_ptr[-1] += shift; |
989 | *PL_markstack_ptr += shift; | |
544f3153 | 990 | while (count--) |
a0d0e21e LW |
991 | *dst-- = *src--; |
992 | } | |
544f3153 | 993 | /* copy the new items down to the destination list */ |
ac27b0f5 | 994 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
995 | if (gimme == G_ARRAY) { |
996 | while (items-- > 0) | |
997 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
998 | } | |
bfed75c6 | 999 | else { |
22023b26 TP |
1000 | /* scalar context: we don't care about which values map returns |
1001 | * (we use undef here). And so we certainly don't want to do mortal | |
1002 | * copies of meaningless values. */ | |
1003 | while (items-- > 0) { | |
b988aa42 | 1004 | (void)POPs; |
22023b26 TP |
1005 | *dst-- = &PL_sv_undef; |
1006 | } | |
1007 | } | |
a0d0e21e LW |
1008 | } |
1009 | LEAVE; /* exit inner scope */ | |
1010 | ||
1011 | /* All done yet? */ | |
3280af22 | 1012 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1013 | |
1014 | (void)POPMARK; /* pop top */ | |
1015 | LEAVE; /* exit outer scope */ | |
1016 | (void)POPMARK; /* pop src */ | |
3280af22 | 1017 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1018 | (void)POPMARK; /* pop dst */ |
3280af22 | 1019 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1020 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1021 | if (PL_op->op_private & OPpGREP_LEX) { |
1022 | SV* sv = sv_newmortal(); | |
1023 | sv_setiv(sv, items); | |
1024 | PUSHs(sv); | |
1025 | } | |
1026 | else { | |
1027 | dTARGET; | |
1028 | XPUSHi(items); | |
1029 | } | |
a0d0e21e | 1030 | } |
54310121 | 1031 | else if (gimme == G_ARRAY) |
1032 | SP += items; | |
a0d0e21e LW |
1033 | RETURN; |
1034 | } | |
1035 | else { | |
1036 | SV *src; | |
1037 | ||
1038 | ENTER; /* enter inner scope */ | |
7766f137 | 1039 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1040 | |
544f3153 | 1041 | /* set $_ to the new source item */ |
3280af22 | 1042 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1043 | SvTEMP_off(src); |
59f00321 RGS |
1044 | if (PL_op->op_private & OPpGREP_LEX) |
1045 | PAD_SVl(PL_op->op_targ) = src; | |
1046 | else | |
1047 | DEFSV = src; | |
a0d0e21e LW |
1048 | |
1049 | RETURNOP(cLOGOP->op_other); | |
1050 | } | |
1051 | } | |
1052 | ||
a0d0e21e LW |
1053 | /* Range stuff. */ |
1054 | ||
1055 | PP(pp_range) | |
1056 | { | |
97aff369 | 1057 | dVAR; |
a0d0e21e | 1058 | if (GIMME == G_ARRAY) |
1a67a97c | 1059 | return NORMAL; |
538573f7 | 1060 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1061 | return cLOGOP->op_other; |
538573f7 | 1062 | else |
1a67a97c | 1063 | return NORMAL; |
a0d0e21e LW |
1064 | } |
1065 | ||
1066 | PP(pp_flip) | |
1067 | { | |
97aff369 | 1068 | dVAR; |
39644a26 | 1069 | dSP; |
a0d0e21e LW |
1070 | |
1071 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1072 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1073 | } |
1074 | else { | |
1075 | dTOPss; | |
44f8325f | 1076 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1077 | int flip = 0; |
790090df | 1078 | |
bfed75c6 | 1079 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1080 | if (GvIO(PL_last_in_gv)) { |
1081 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1082 | } | |
1083 | else { | |
fafc274c | 1084 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1085 | if (gv && GvSV(gv)) |
1086 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1087 | } |
bfed75c6 AL |
1088 | } else { |
1089 | flip = SvTRUE(sv); | |
1090 | } | |
1091 | if (flip) { | |
a0d0e21e | 1092 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1093 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1094 | sv_setiv(targ, 1); |
3e3baf6d | 1095 | SETs(targ); |
a0d0e21e LW |
1096 | RETURN; |
1097 | } | |
1098 | else { | |
1099 | sv_setiv(targ, 0); | |
924508f0 | 1100 | SP--; |
1a67a97c | 1101 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1102 | } |
1103 | } | |
c69006e4 | 1104 | sv_setpvn(TARG, "", 0); |
a0d0e21e LW |
1105 | SETs(targ); |
1106 | RETURN; | |
1107 | } | |
1108 | } | |
1109 | ||
8e9bbdb9 RGS |
1110 | /* This code tries to decide if "$left .. $right" should use the |
1111 | magical string increment, or if the range is numeric (we make | |
1112 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1113 | ||
1114 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1115 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1116 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1117 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1118 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1119 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1120 | |
a0d0e21e LW |
1121 | PP(pp_flop) |
1122 | { | |
97aff369 | 1123 | dVAR; dSP; |
a0d0e21e LW |
1124 | |
1125 | if (GIMME == G_ARRAY) { | |
1126 | dPOPPOPssrl; | |
86cb7173 | 1127 | |
5b295bef RD |
1128 | SvGETMAGIC(left); |
1129 | SvGETMAGIC(right); | |
a0d0e21e | 1130 | |
8e9bbdb9 | 1131 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1132 | register IV i, j; |
1133 | IV max; | |
4fe3f0fa MHM |
1134 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1135 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1136 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1137 | i = SvIV(left); |
1138 | max = SvIV(right); | |
bbce6d69 | 1139 | if (max >= i) { |
c1ab3db2 AK |
1140 | j = max - i + 1; |
1141 | EXTEND_MORTAL(j); | |
1142 | EXTEND(SP, j); | |
bbce6d69 | 1143 | } |
c1ab3db2 AK |
1144 | else |
1145 | j = 0; | |
1146 | while (j--) { | |
901017d6 | 1147 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1148 | PUSHs(sv); |
1149 | } | |
1150 | } | |
1151 | else { | |
44f8325f | 1152 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1153 | STRLEN len; |
823a54a3 | 1154 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1155 | |
901017d6 | 1156 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1157 | SvPV_force_nolen(sv); |
89ea2908 | 1158 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1159 | XPUSHs(sv); |
b15aece3 | 1160 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1161 | break; |
a0d0e21e LW |
1162 | sv = sv_2mortal(newSVsv(sv)); |
1163 | sv_inc(sv); | |
1164 | } | |
a0d0e21e LW |
1165 | } |
1166 | } | |
1167 | else { | |
1168 | dTOPss; | |
901017d6 | 1169 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1170 | int flop = 0; |
a0d0e21e | 1171 | sv_inc(targ); |
4e3399f9 YST |
1172 | |
1173 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1174 | if (GvIO(PL_last_in_gv)) { | |
1175 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1176 | } | |
1177 | else { | |
fafc274c | 1178 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1179 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1180 | } | |
1181 | } | |
1182 | else { | |
1183 | flop = SvTRUE(sv); | |
1184 | } | |
1185 | ||
1186 | if (flop) { | |
a0d0e21e | 1187 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1188 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1189 | } |
1190 | SETs(targ); | |
1191 | } | |
1192 | ||
1193 | RETURN; | |
1194 | } | |
1195 | ||
1196 | /* Control. */ | |
1197 | ||
27da23d5 | 1198 | static const char * const context_name[] = { |
515afda2 NC |
1199 | "pseudo-block", |
1200 | "subroutine", | |
1201 | "eval", | |
1202 | "loop", | |
1203 | "substitution", | |
1204 | "block", | |
0d863452 RH |
1205 | "format", |
1206 | "given", | |
1207 | "when" | |
515afda2 NC |
1208 | }; |
1209 | ||
76e3520e | 1210 | STATIC I32 |
06b5626a | 1211 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1212 | { |
97aff369 | 1213 | dVAR; |
a0d0e21e | 1214 | register I32 i; |
a0d0e21e LW |
1215 | |
1216 | for (i = cxstack_ix; i >= 0; i--) { | |
901017d6 | 1217 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1218 | switch (CxTYPE(cx)) { |
a0d0e21e | 1219 | case CXt_SUBST: |
a0d0e21e | 1220 | case CXt_SUB: |
7766f137 | 1221 | case CXt_FORMAT: |
a0d0e21e | 1222 | case CXt_EVAL: |
0a753a76 | 1223 | case CXt_NULL: |
0d863452 RH |
1224 | case CXt_GIVEN: |
1225 | case CXt_WHEN: | |
e476b1b5 | 1226 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1227 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1228 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1229 | if (CxTYPE(cx) == CXt_NULL) | |
1230 | return -1; | |
1231 | break; | |
a0d0e21e | 1232 | case CXt_LOOP: |
901017d6 | 1233 | if ( !cx->blk_loop.label || strNE(label, cx->blk_loop.label) ) { |
cea2e8a9 | 1234 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
68dc0745 | 1235 | (long)i, cx->blk_loop.label)); |
a0d0e21e LW |
1236 | continue; |
1237 | } | |
cea2e8a9 | 1238 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1239 | return i; |
1240 | } | |
1241 | } | |
1242 | return i; | |
1243 | } | |
1244 | ||
0d863452 RH |
1245 | |
1246 | ||
e50aee73 | 1247 | I32 |
864dbfa3 | 1248 | Perl_dowantarray(pTHX) |
e50aee73 | 1249 | { |
97aff369 | 1250 | dVAR; |
f54cb97a | 1251 | const I32 gimme = block_gimme(); |
54310121 | 1252 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1253 | } | |
1254 | ||
1255 | I32 | |
864dbfa3 | 1256 | Perl_block_gimme(pTHX) |
54310121 | 1257 | { |
97aff369 | 1258 | dVAR; |
06b5626a | 1259 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1260 | if (cxix < 0) |
46fc3d4c | 1261 | return G_VOID; |
e50aee73 | 1262 | |
54310121 | 1263 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1264 | case G_VOID: |
1265 | return G_VOID; | |
54310121 | 1266 | case G_SCALAR: |
e50aee73 | 1267 | return G_SCALAR; |
54310121 | 1268 | case G_ARRAY: |
1269 | return G_ARRAY; | |
1270 | default: | |
cea2e8a9 | 1271 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1272 | /* NOTREACHED */ |
1273 | return 0; | |
54310121 | 1274 | } |
e50aee73 AD |
1275 | } |
1276 | ||
78f9721b SM |
1277 | I32 |
1278 | Perl_is_lvalue_sub(pTHX) | |
1279 | { | |
97aff369 | 1280 | dVAR; |
06b5626a | 1281 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1282 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1283 | ||
1284 | if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1285 | return cxstack[cxix].blk_sub.lval; | |
1286 | else | |
1287 | return 0; | |
1288 | } | |
1289 | ||
76e3520e | 1290 | STATIC I32 |
cea2e8a9 | 1291 | S_dopoptosub(pTHX_ I32 startingblock) |
a0d0e21e | 1292 | { |
97aff369 | 1293 | dVAR; |
2c375eb9 GS |
1294 | return dopoptosub_at(cxstack, startingblock); |
1295 | } | |
1296 | ||
1297 | STATIC I32 | |
901017d6 | 1298 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1299 | { |
97aff369 | 1300 | dVAR; |
a0d0e21e | 1301 | I32 i; |
a0d0e21e | 1302 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1303 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1304 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1305 | default: |
1306 | continue; | |
1307 | case CXt_EVAL: | |
1308 | case CXt_SUB: | |
7766f137 | 1309 | case CXt_FORMAT: |
cea2e8a9 | 1310 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1311 | return i; |
1312 | } | |
1313 | } | |
1314 | return i; | |
1315 | } | |
1316 | ||
76e3520e | 1317 | STATIC I32 |
cea2e8a9 | 1318 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1319 | { |
97aff369 | 1320 | dVAR; |
a0d0e21e | 1321 | I32 i; |
a0d0e21e | 1322 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1323 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1324 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1325 | default: |
1326 | continue; | |
1327 | case CXt_EVAL: | |
cea2e8a9 | 1328 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1329 | return i; |
1330 | } | |
1331 | } | |
1332 | return i; | |
1333 | } | |
1334 | ||
76e3520e | 1335 | STATIC I32 |
cea2e8a9 | 1336 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1337 | { |
97aff369 | 1338 | dVAR; |
a0d0e21e | 1339 | I32 i; |
a0d0e21e | 1340 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1341 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1342 | switch (CxTYPE(cx)) { |
a0d0e21e | 1343 | case CXt_SUBST: |
a0d0e21e | 1344 | case CXt_SUB: |
7766f137 | 1345 | case CXt_FORMAT: |
a0d0e21e | 1346 | case CXt_EVAL: |
0a753a76 | 1347 | case CXt_NULL: |
e476b1b5 | 1348 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1349 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1350 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1351 | if ((CxTYPE(cx)) == CXt_NULL) | |
1352 | return -1; | |
1353 | break; | |
a0d0e21e | 1354 | case CXt_LOOP: |
cea2e8a9 | 1355 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1356 | return i; |
1357 | } | |
1358 | } | |
1359 | return i; | |
1360 | } | |
1361 | ||
0d863452 RH |
1362 | STATIC I32 |
1363 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1364 | { | |
97aff369 | 1365 | dVAR; |
0d863452 RH |
1366 | I32 i; |
1367 | for (i = startingblock; i >= 0; i--) { | |
1368 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1369 | switch (CxTYPE(cx)) { | |
1370 | default: | |
1371 | continue; | |
1372 | case CXt_GIVEN: | |
1373 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1374 | return i; | |
1375 | case CXt_LOOP: | |
1376 | if (CxFOREACHDEF(cx)) { | |
1377 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1378 | return i; | |
1379 | } | |
1380 | } | |
1381 | } | |
1382 | return i; | |
1383 | } | |
1384 | ||
1385 | STATIC I32 | |
1386 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1387 | { | |
97aff369 | 1388 | dVAR; |
0d863452 RH |
1389 | I32 i; |
1390 | for (i = startingblock; i >= 0; i--) { | |
1391 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1392 | switch (CxTYPE(cx)) { | |
1393 | default: | |
1394 | continue; | |
1395 | case CXt_WHEN: | |
1396 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1397 | return i; | |
1398 | } | |
1399 | } | |
1400 | return i; | |
1401 | } | |
1402 | ||
a0d0e21e | 1403 | void |
864dbfa3 | 1404 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1405 | { |
97aff369 | 1406 | dVAR; |
a0d0e21e LW |
1407 | I32 optype; |
1408 | ||
1409 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1410 | SV *sv; |
06b5626a | 1411 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1412 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1413 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1414 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1415 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1416 | case CXt_SUBST: |
1417 | POPSUBST(cx); | |
1418 | continue; /* not break */ | |
a0d0e21e | 1419 | case CXt_SUB: |
b0d9ce38 GS |
1420 | POPSUB(cx,sv); |
1421 | LEAVESUB(sv); | |
a0d0e21e LW |
1422 | break; |
1423 | case CXt_EVAL: | |
1424 | POPEVAL(cx); | |
1425 | break; | |
1426 | case CXt_LOOP: | |
1427 | POPLOOP(cx); | |
1428 | break; | |
0a753a76 | 1429 | case CXt_NULL: |
a0d0e21e | 1430 | break; |
7766f137 GS |
1431 | case CXt_FORMAT: |
1432 | POPFORMAT(cx); | |
1433 | break; | |
a0d0e21e | 1434 | } |
c90c0ff4 | 1435 | cxstack_ix--; |
a0d0e21e | 1436 | } |
1b6737cc | 1437 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1438 | } |
1439 | ||
5a844595 GS |
1440 | void |
1441 | Perl_qerror(pTHX_ SV *err) | |
1442 | { | |
97aff369 | 1443 | dVAR; |
5a844595 GS |
1444 | if (PL_in_eval) |
1445 | sv_catsv(ERRSV, err); | |
1446 | else if (PL_errors) | |
1447 | sv_catsv(PL_errors, err); | |
1448 | else | |
894356b3 | 1449 | Perl_warn(aTHX_ "%"SVf, err); |
5a844595 GS |
1450 | ++PL_error_count; |
1451 | } | |
1452 | ||
a0d0e21e | 1453 | OP * |
35a4481c | 1454 | Perl_die_where(pTHX_ const char *message, STRLEN msglen) |
a0d0e21e | 1455 | { |
27da23d5 | 1456 | dVAR; |
87582a92 | 1457 | |
3280af22 | 1458 | if (PL_in_eval) { |
a0d0e21e | 1459 | I32 cxix; |
a0d0e21e | 1460 | I32 gimme; |
a0d0e21e | 1461 | |
4e6ea2c3 | 1462 | if (message) { |
faef0170 | 1463 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1464 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1465 | SV * const err = ERRSV; |
c445ea15 | 1466 | const char *e = NULL; |
98eae8f5 | 1467 | if (!SvPOK(err)) |
c69006e4 | 1468 | sv_setpvn(err,"",0); |
98eae8f5 | 1469 | else if (SvCUR(err) >= sizeof(prefix)+msglen-1) { |
0510663f | 1470 | STRLEN len; |
349d4f2f | 1471 | e = SvPV_const(err, len); |
0510663f | 1472 | e += len - msglen; |
98eae8f5 | 1473 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1474 | e = NULL; |
98eae8f5 GS |
1475 | } |
1476 | if (!e) { | |
1477 | SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen); | |
1478 | sv_catpvn(err, prefix, sizeof(prefix)-1); | |
1479 | sv_catpvn(err, message, msglen); | |
e476b1b5 | 1480 | if (ckWARN(WARN_MISC)) { |
504618e9 | 1481 | const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1; |
b15aece3 | 1482 | Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX_const(err)+start); |
4e6ea2c3 | 1483 | } |
4633a7c4 | 1484 | } |
4633a7c4 | 1485 | } |
1aa99e6b | 1486 | else { |
06bf62c7 | 1487 | sv_setpvn(ERRSV, message, msglen); |
1aa99e6b | 1488 | } |
4633a7c4 | 1489 | } |
4e6ea2c3 | 1490 | |
5a844595 GS |
1491 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1492 | && PL_curstackinfo->si_prev) | |
1493 | { | |
bac4b2ad | 1494 | dounwind(-1); |
d3acc0f7 | 1495 | POPSTACK; |
bac4b2ad | 1496 | } |
e336de0d | 1497 | |
a0d0e21e LW |
1498 | if (cxix >= 0) { |
1499 | I32 optype; | |
35a4481c | 1500 | register PERL_CONTEXT *cx; |
901017d6 | 1501 | SV **newsp; |
a0d0e21e LW |
1502 | |
1503 | if (cxix < cxstack_ix) | |
1504 | dounwind(cxix); | |
1505 | ||
3280af22 | 1506 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1507 | if (CxTYPE(cx) != CXt_EVAL) { |
16869676 | 1508 | if (!message) |
349d4f2f | 1509 | message = SvPVx_const(ERRSV, msglen); |
bf49b057 GS |
1510 | PerlIO_write(Perl_error_log, "panic: die ", 11); |
1511 | PerlIO_write(Perl_error_log, message, msglen); | |
a0d0e21e LW |
1512 | my_exit(1); |
1513 | } | |
1514 | POPEVAL(cx); | |
1515 | ||
1516 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1517 | *++newsp = &PL_sv_undef; |
1518 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1519 | |
1520 | LEAVE; | |
748a9306 | 1521 | |
7fb6a879 GS |
1522 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1523 | * XXX it might be better to find a way to avoid messing with | |
1524 | * PL_curcop in save_re_context() instead, but this is a more | |
1525 | * minimal fix --GSAR */ | |
1526 | PL_curcop = cx->blk_oldcop; | |
1527 | ||
7a2e2cd6 | 1528 | if (optype == OP_REQUIRE) { |
44f8325f | 1529 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1530 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1531 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1532 | &PL_sv_undef, 0); |
5a844595 GS |
1533 | DIE(aTHX_ "%sCompilation failed in require", |
1534 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1535 | } |
f39bc417 DM |
1536 | assert(CxTYPE(cx) == CXt_EVAL); |
1537 | return cx->blk_eval.retop; | |
a0d0e21e LW |
1538 | } |
1539 | } | |
9cc2fdd3 | 1540 | if (!message) |
349d4f2f | 1541 | message = SvPVx_const(ERRSV, msglen); |
87582a92 | 1542 | |
7ff03255 | 1543 | write_to_stderr(message, msglen); |
f86702cc | 1544 | my_failure_exit(); |
1545 | /* NOTREACHED */ | |
a0d0e21e LW |
1546 | return 0; |
1547 | } | |
1548 | ||
1549 | PP(pp_xor) | |
1550 | { | |
97aff369 | 1551 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1552 | if (SvTRUE(left) != SvTRUE(right)) |
1553 | RETSETYES; | |
1554 | else | |
1555 | RETSETNO; | |
1556 | } | |
1557 | ||
a0d0e21e LW |
1558 | PP(pp_caller) |
1559 | { | |
97aff369 | 1560 | dVAR; |
39644a26 | 1561 | dSP; |
a0d0e21e | 1562 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1563 | register const PERL_CONTEXT *cx; |
1564 | register const PERL_CONTEXT *ccstack = cxstack; | |
1565 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1566 | I32 gimme; |
06b5626a | 1567 | const char *stashname; |
a0d0e21e LW |
1568 | I32 count = 0; |
1569 | ||
1570 | if (MAXARG) | |
1571 | count = POPi; | |
27d41816 | 1572 | |
a0d0e21e | 1573 | for (;;) { |
2c375eb9 GS |
1574 | /* we may be in a higher stacklevel, so dig down deeper */ |
1575 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1576 | top_si = top_si->si_prev; | |
1577 | ccstack = top_si->si_cxstack; | |
1578 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1579 | } | |
a0d0e21e | 1580 | if (cxix < 0) { |
27d41816 DM |
1581 | if (GIMME != G_ARRAY) { |
1582 | EXTEND(SP, 1); | |
a0d0e21e | 1583 | RETPUSHUNDEF; |
27d41816 | 1584 | } |
a0d0e21e LW |
1585 | RETURN; |
1586 | } | |
f2a7f298 DG |
1587 | /* caller() should not report the automatic calls to &DB::sub */ |
1588 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1589 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1590 | count++; |
1591 | if (!count--) | |
1592 | break; | |
2c375eb9 | 1593 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1594 | } |
2c375eb9 GS |
1595 | |
1596 | cx = &ccstack[cxix]; | |
7766f137 | 1597 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1598 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1599 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1600 | field below is defined for any cx. */ |
f2a7f298 DG |
1601 | /* caller() should not report the automatic calls to &DB::sub */ |
1602 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1603 | cx = &ccstack[dbcxix]; |
06a5b730 | 1604 | } |
1605 | ||
ed094faf | 1606 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1607 | if (GIMME != G_ARRAY) { |
27d41816 | 1608 | EXTEND(SP, 1); |
ed094faf | 1609 | if (!stashname) |
3280af22 | 1610 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1611 | else { |
1612 | dTARGET; | |
ed094faf | 1613 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1614 | PUSHs(TARG); |
1615 | } | |
a0d0e21e LW |
1616 | RETURN; |
1617 | } | |
a0d0e21e | 1618 | |
27d41816 DM |
1619 | EXTEND(SP, 10); |
1620 | ||
ed094faf | 1621 | if (!stashname) |
3280af22 | 1622 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1623 | else |
ed094faf | 1624 | PUSHs(sv_2mortal(newSVpv(stashname, 0))); |
248c2a4d | 1625 | PUSHs(sv_2mortal(newSVpv(OutCopFILE(cx->blk_oldcop), 0))); |
57843af0 | 1626 | PUSHs(sv_2mortal(newSViv((I32)CopLINE(cx->blk_oldcop)))); |
a0d0e21e LW |
1627 | if (!MAXARG) |
1628 | RETURN; | |
7766f137 | 1629 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1630 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1631 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1632 | if (isGV(cvgv)) { |
561b68a9 | 1633 | SV * const sv = newSV(0); |
c445ea15 | 1634 | gv_efullname3(sv, cvgv, NULL); |
07b8c804 RGS |
1635 | PUSHs(sv_2mortal(sv)); |
1636 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); | |
1637 | } | |
1638 | else { | |
396482e1 | 1639 | PUSHs(sv_2mortal(newSVpvs("(unknown)"))); |
72699b0f | 1640 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 | 1641 | } |
a0d0e21e LW |
1642 | } |
1643 | else { | |
396482e1 | 1644 | PUSHs(sv_2mortal(newSVpvs("(eval)"))); |
a0d0e21e LW |
1645 | PUSHs(sv_2mortal(newSViv(0))); |
1646 | } | |
54310121 | 1647 | gimme = (I32)cx->blk_gimme; |
1648 | if (gimme == G_VOID) | |
3280af22 | 1649 | PUSHs(&PL_sv_undef); |
54310121 | 1650 | else |
1651 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); | |
6b35e009 | 1652 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1653 | /* eval STRING */ |
06a5b730 | 1654 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 | 1655 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1656 | PUSHs(&PL_sv_no); |
0f79a09d | 1657 | } |
811a4de9 | 1658 | /* require */ |
0f79a09d GS |
1659 | else if (cx->blk_eval.old_namesv) { |
1660 | PUSHs(sv_2mortal(newSVsv(cx->blk_eval.old_namesv))); | |
3280af22 | 1661 | PUSHs(&PL_sv_yes); |
06a5b730 | 1662 | } |
811a4de9 GS |
1663 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1664 | else { | |
1665 | PUSHs(&PL_sv_undef); | |
1666 | PUSHs(&PL_sv_undef); | |
1667 | } | |
4633a7c4 | 1668 | } |
a682de96 GS |
1669 | else { |
1670 | PUSHs(&PL_sv_undef); | |
1671 | PUSHs(&PL_sv_undef); | |
1672 | } | |
1673 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs | |
ed094faf | 1674 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1675 | { |
66a1b24b AL |
1676 | AV * const ary = cx->blk_sub.argarray; |
1677 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1678 | |
3280af22 | 1679 | if (!PL_dbargs) { |
71315bf2 | 1680 | GV* const tmpgv = gv_fetchpvs("DB::args", GV_ADD, SVt_PVAV); |
0bd48802 | 1681 | PL_dbargs = GvAV(gv_AVadd(tmpgv)); |
a5f75d66 | 1682 | GvMULTI_on(tmpgv); |
3ddcf04c | 1683 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1684 | } |
1685 | ||
3280af22 NIS |
1686 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1687 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1688 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1689 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1690 | } |
f3aa04c2 GS |
1691 | /* XXX only hints propagated via op_private are currently |
1692 | * visible (others are not easily accessible, since they | |
1693 | * use the global PL_hints) */ | |
1694 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->op_private & | |
1695 | HINT_PRIVATE_MASK))); | |
e476b1b5 GS |
1696 | { |
1697 | SV * mask ; | |
0bd48802 | 1698 | SV * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1699 | |
ac27b0f5 | 1700 | if (old_warnings == pWARN_NONE || |
114bafba | 1701 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1702 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1703 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1704 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1705 | /* Get the bit mask for $warnings::Bits{all}, because | |
1706 | * it could have been extended by warnings::register */ | |
1707 | SV **bits_all; | |
0bd48802 | 1708 | HV * const bits = get_hv("warnings::Bits", FALSE); |
017a3ce5 | 1709 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1710 | mask = newSVsv(*bits_all); |
1711 | } | |
1712 | else { | |
1713 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1714 | } | |
1715 | } | |
e476b1b5 GS |
1716 | else |
1717 | mask = newSVsv(old_warnings); | |
1718 | PUSHs(sv_2mortal(mask)); | |
1719 | } | |
a0d0e21e LW |
1720 | RETURN; |
1721 | } | |
1722 | ||
a0d0e21e LW |
1723 | PP(pp_reset) |
1724 | { | |
97aff369 | 1725 | dVAR; |
39644a26 | 1726 | dSP; |
0bd48802 | 1727 | const char * const tmps = (MAXARG < 1) ? "" : POPpconstx; |
11faa288 | 1728 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1729 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1730 | RETURN; |
1731 | } | |
1732 | ||
dd2155a4 DM |
1733 | /* like pp_nextstate, but used instead when the debugger is active */ |
1734 | ||
a0d0e21e LW |
1735 | PP(pp_dbstate) |
1736 | { | |
27da23d5 | 1737 | dVAR; |
533c011a | 1738 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1739 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1740 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1741 | FREETMPS; |
1742 | ||
5df8de69 DM |
1743 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1744 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1745 | { |
39644a26 | 1746 | dSP; |
c09156bb | 1747 | register PERL_CONTEXT *cx; |
f54cb97a | 1748 | const I32 gimme = G_ARRAY; |
eb160463 | 1749 | U8 hasargs; |
0bd48802 AL |
1750 | GV * const gv = PL_DBgv; |
1751 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1752 | |
a0d0e21e | 1753 | if (!cv) |
cea2e8a9 | 1754 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1755 | |
aea4f609 DM |
1756 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1757 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1758 | return NORMAL; |
748a9306 | 1759 | |
4633a7c4 LW |
1760 | ENTER; |
1761 | SAVETMPS; | |
1762 | ||
3280af22 | 1763 | SAVEI32(PL_debug); |
55497cff | 1764 | SAVESTACK_POS(); |
3280af22 | 1765 | PL_debug = 0; |
748a9306 | 1766 | hasargs = 0; |
924508f0 | 1767 | SPAGAIN; |
748a9306 | 1768 | |
aed2304a | 1769 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1770 | CvDEPTH(cv)++; |
1771 | PUSHMARK(SP); | |
1772 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1773 | CvDEPTH(cv)--; | |
1774 | FREETMPS; | |
1775 | LEAVE; | |
1776 | return NORMAL; | |
1777 | } | |
1778 | else { | |
1779 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1780 | PUSHSUB_DB(cx); | |
1781 | cx->blk_sub.retop = PL_op->op_next; | |
1782 | CvDEPTH(cv)++; | |
1783 | SAVECOMPPAD(); | |
1784 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1785 | RETURNOP(CvSTART(cv)); | |
1786 | } | |
a0d0e21e LW |
1787 | } |
1788 | else | |
1789 | return NORMAL; | |
1790 | } | |
1791 | ||
a0d0e21e LW |
1792 | PP(pp_enteriter) |
1793 | { | |
27da23d5 | 1794 | dVAR; dSP; dMARK; |
c09156bb | 1795 | register PERL_CONTEXT *cx; |
f54cb97a | 1796 | const I32 gimme = GIMME_V; |
a0d0e21e | 1797 | SV **svp; |
0d863452 | 1798 | U32 cxtype = CXt_LOOP | CXp_FOREACH; |
7766f137 GS |
1799 | #ifdef USE_ITHREADS |
1800 | void *iterdata; | |
1801 | #endif | |
a0d0e21e | 1802 | |
4633a7c4 LW |
1803 | ENTER; |
1804 | SAVETMPS; | |
1805 | ||
533c011a | 1806 | if (PL_op->op_targ) { |
14f338dc DM |
1807 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1808 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1809 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1810 | SVs_PADSTALE, SVs_PADSTALE); | |
1811 | } | |
c3564e5c | 1812 | #ifndef USE_ITHREADS |
dd2155a4 | 1813 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
54b9620d | 1814 | SAVESPTR(*svp); |
c3564e5c GS |
1815 | #else |
1816 | SAVEPADSV(PL_op->op_targ); | |
cbfa9890 | 1817 | iterdata = INT2PTR(void*, PL_op->op_targ); |
7766f137 GS |
1818 | cxtype |= CXp_PADVAR; |
1819 | #endif | |
54b9620d MB |
1820 | } |
1821 | else { | |
0bd48802 | 1822 | GV * const gv = (GV*)POPs; |
7766f137 | 1823 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1824 | SAVEGENERICSV(*svp); |
561b68a9 | 1825 | *svp = newSV(0); |
7766f137 GS |
1826 | #ifdef USE_ITHREADS |
1827 | iterdata = (void*)gv; | |
1828 | #endif | |
54b9620d | 1829 | } |
4633a7c4 | 1830 | |
0d863452 RH |
1831 | if (PL_op->op_private & OPpITER_DEF) |
1832 | cxtype |= CXp_FOR_DEF; | |
1833 | ||
a0d0e21e LW |
1834 | ENTER; |
1835 | ||
7766f137 GS |
1836 | PUSHBLOCK(cx, cxtype, SP); |
1837 | #ifdef USE_ITHREADS | |
1838 | PUSHLOOP(cx, iterdata, MARK); | |
1839 | #else | |
a0d0e21e | 1840 | PUSHLOOP(cx, svp, MARK); |
7766f137 | 1841 | #endif |
533c011a | 1842 | if (PL_op->op_flags & OPf_STACKED) { |
44a8e56a | 1843 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
89ea2908 GA |
1844 | if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) { |
1845 | dPOPss; | |
0bd48802 | 1846 | SV * const right = (SV*)cx->blk_loop.iterary; |
984a4bea RD |
1847 | SvGETMAGIC(sv); |
1848 | SvGETMAGIC(right); | |
4fe3f0fa MHM |
1849 | if (RANGE_IS_NUMERIC(sv,right)) { |
1850 | if ((SvOK(sv) && SvNV(sv) < IV_MIN) || | |
1851 | (SvOK(right) && SvNV(right) >= IV_MAX)) | |
076d9a11 MHM |
1852 | DIE(aTHX_ "Range iterator outside integer range"); |
1853 | cx->blk_loop.iterix = SvIV(sv); | |
4fe3f0fa | 1854 | cx->blk_loop.itermax = SvIV(right); |
d4665a05 DM |
1855 | #ifdef DEBUGGING |
1856 | /* for correct -Dstv display */ | |
1857 | cx->blk_oldsp = sp - PL_stack_base; | |
1858 | #endif | |
89ea2908 | 1859 | } |
3f63a782 | 1860 | else { |
89ea2908 | 1861 | cx->blk_loop.iterlval = newSVsv(sv); |
13c5b33c | 1862 | (void) SvPV_force_nolen(cx->blk_loop.iterlval); |
10516c54 | 1863 | (void) SvPV_nolen_const(right); |
3f63a782 | 1864 | } |
89ea2908 | 1865 | } |
ef3e5ea9 | 1866 | else if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1867 | cx->blk_loop.itermax = 0; |
1868 | cx->blk_loop.iterix = AvFILL(cx->blk_loop.iterary) + 1; | |
ef3e5ea9 NC |
1869 | |
1870 | } | |
89ea2908 | 1871 | } |
4633a7c4 | 1872 | else { |
3280af22 NIS |
1873 | cx->blk_loop.iterary = PL_curstack; |
1874 | AvFILLp(PL_curstack) = SP - PL_stack_base; | |
ef3e5ea9 | 1875 | if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1876 | cx->blk_loop.itermax = MARK - PL_stack_base + 1; |
1877 | cx->blk_loop.iterix = cx->blk_oldsp + 1; | |
ef3e5ea9 NC |
1878 | } |
1879 | else { | |
1880 | cx->blk_loop.iterix = MARK - PL_stack_base; | |
1881 | } | |
4633a7c4 | 1882 | } |
a0d0e21e LW |
1883 | |
1884 | RETURN; | |
1885 | } | |
1886 | ||
1887 | PP(pp_enterloop) | |
1888 | { | |
27da23d5 | 1889 | dVAR; dSP; |
c09156bb | 1890 | register PERL_CONTEXT *cx; |
f54cb97a | 1891 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
1892 | |
1893 | ENTER; | |
1894 | SAVETMPS; | |
1895 | ENTER; | |
1896 | ||
1897 | PUSHBLOCK(cx, CXt_LOOP, SP); | |
1898 | PUSHLOOP(cx, 0, SP); | |
1899 | ||
1900 | RETURN; | |
1901 | } | |
1902 | ||
1903 | PP(pp_leaveloop) | |
1904 | { | |
27da23d5 | 1905 | dVAR; dSP; |
c09156bb | 1906 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1907 | I32 gimme; |
1908 | SV **newsp; | |
1909 | PMOP *newpm; | |
1910 | SV **mark; | |
1911 | ||
1912 | POPBLOCK(cx,newpm); | |
3a1b2b9e | 1913 | assert(CxTYPE(cx) == CXt_LOOP); |
4fdae800 | 1914 | mark = newsp; |
a8bba7fa | 1915 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 1916 | |
a1f49e72 | 1917 | TAINT_NOT; |
54310121 | 1918 | if (gimme == G_VOID) |
bb263b4e | 1919 | /*EMPTY*/; /* do nothing */ |
54310121 | 1920 | else if (gimme == G_SCALAR) { |
1921 | if (mark < SP) | |
1922 | *++newsp = sv_mortalcopy(*SP); | |
1923 | else | |
3280af22 | 1924 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
1925 | } |
1926 | else { | |
a1f49e72 | 1927 | while (mark < SP) { |
a0d0e21e | 1928 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
1929 | TAINT_NOT; /* Each item is independent */ |
1930 | } | |
a0d0e21e | 1931 | } |
f86702cc | 1932 | SP = newsp; |
1933 | PUTBACK; | |
1934 | ||
a8bba7fa | 1935 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 1936 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 1937 | |
a0d0e21e LW |
1938 | LEAVE; |
1939 | LEAVE; | |
1940 | ||
f86702cc | 1941 | return NORMAL; |
a0d0e21e LW |
1942 | } |
1943 | ||
1944 | PP(pp_return) | |
1945 | { | |
27da23d5 | 1946 | dVAR; dSP; dMARK; |
c09156bb | 1947 | register PERL_CONTEXT *cx; |
f86702cc | 1948 | bool popsub2 = FALSE; |
b45de488 | 1949 | bool clear_errsv = FALSE; |
a0d0e21e LW |
1950 | I32 gimme; |
1951 | SV **newsp; | |
1952 | PMOP *newpm; | |
1953 | I32 optype = 0; | |
b0d9ce38 | 1954 | SV *sv; |
f39bc417 | 1955 | OP *retop; |
a0d0e21e | 1956 | |
0bd48802 AL |
1957 | const I32 cxix = dopoptosub(cxstack_ix); |
1958 | ||
9850bf21 RH |
1959 | if (cxix < 0) { |
1960 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
1961 | * sort block, which is a CXt_NULL | |
1962 | * not a CXt_SUB */ | |
1963 | dounwind(0); | |
d7507f74 RH |
1964 | PL_stack_base[1] = *PL_stack_sp; |
1965 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
1966 | return 0; |
1967 | } | |
9850bf21 RH |
1968 | else |
1969 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 1970 | } |
a0d0e21e LW |
1971 | if (cxix < cxstack_ix) |
1972 | dounwind(cxix); | |
1973 | ||
d7507f74 RH |
1974 | if (CxMULTICALL(&cxstack[cxix])) { |
1975 | gimme = cxstack[cxix].blk_gimme; | |
1976 | if (gimme == G_VOID) | |
1977 | PL_stack_sp = PL_stack_base; | |
1978 | else if (gimme == G_SCALAR) { | |
1979 | PL_stack_base[1] = *PL_stack_sp; | |
1980 | PL_stack_sp = PL_stack_base + 1; | |
1981 | } | |
9850bf21 | 1982 | return 0; |
d7507f74 | 1983 | } |
9850bf21 | 1984 | |
a0d0e21e | 1985 | POPBLOCK(cx,newpm); |
6b35e009 | 1986 | switch (CxTYPE(cx)) { |
a0d0e21e | 1987 | case CXt_SUB: |
f86702cc | 1988 | popsub2 = TRUE; |
f39bc417 | 1989 | retop = cx->blk_sub.retop; |
5dd42e15 | 1990 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
1991 | break; |
1992 | case CXt_EVAL: | |
b45de488 GS |
1993 | if (!(PL_in_eval & EVAL_KEEPERR)) |
1994 | clear_errsv = TRUE; | |
a0d0e21e | 1995 | POPEVAL(cx); |
f39bc417 | 1996 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
1997 | if (CxTRYBLOCK(cx)) |
1998 | break; | |
067f92a0 | 1999 | lex_end(); |
748a9306 LW |
2000 | if (optype == OP_REQUIRE && |
2001 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2002 | { | |
54310121 | 2003 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2004 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2005 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
35c1215d | 2006 | DIE(aTHX_ "%"SVf" did not return a true value", nsv); |
748a9306 | 2007 | } |
a0d0e21e | 2008 | break; |
7766f137 GS |
2009 | case CXt_FORMAT: |
2010 | POPFORMAT(cx); | |
f39bc417 | 2011 | retop = cx->blk_sub.retop; |
7766f137 | 2012 | break; |
a0d0e21e | 2013 | default: |
cea2e8a9 | 2014 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2015 | } |
2016 | ||
a1f49e72 | 2017 | TAINT_NOT; |
a0d0e21e | 2018 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2019 | if (MARK < SP) { |
2020 | if (popsub2) { | |
a8bba7fa | 2021 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2022 | if (SvTEMP(TOPs)) { |
2023 | *++newsp = SvREFCNT_inc(*SP); | |
2024 | FREETMPS; | |
2025 | sv_2mortal(*newsp); | |
959e3673 GS |
2026 | } |
2027 | else { | |
2028 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2029 | FREETMPS; |
959e3673 GS |
2030 | *++newsp = sv_mortalcopy(sv); |
2031 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2032 | } |
959e3673 GS |
2033 | } |
2034 | else | |
a29cdaf0 | 2035 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2036 | } |
2037 | else | |
a29cdaf0 | 2038 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2039 | } |
2040 | else | |
3280af22 | 2041 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2042 | } |
54310121 | 2043 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2044 | while (++MARK <= SP) { |
f86702cc | 2045 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2046 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2047 | TAINT_NOT; /* Each item is independent */ |
2048 | } | |
a0d0e21e | 2049 | } |
3280af22 | 2050 | PL_stack_sp = newsp; |
a0d0e21e | 2051 | |
5dd42e15 | 2052 | LEAVE; |
f86702cc | 2053 | /* Stack values are safe: */ |
2054 | if (popsub2) { | |
5dd42e15 | 2055 | cxstack_ix--; |
b0d9ce38 | 2056 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2057 | } |
b0d9ce38 | 2058 | else |
c445ea15 | 2059 | sv = NULL; |
3280af22 | 2060 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2061 | |
b0d9ce38 | 2062 | LEAVESUB(sv); |
b45de488 | 2063 | if (clear_errsv) |
c69006e4 | 2064 | sv_setpvn(ERRSV,"",0); |
f39bc417 | 2065 | return retop; |
a0d0e21e LW |
2066 | } |
2067 | ||
2068 | PP(pp_last) | |
2069 | { | |
27da23d5 | 2070 | dVAR; dSP; |
a0d0e21e | 2071 | I32 cxix; |
c09156bb | 2072 | register PERL_CONTEXT *cx; |
f86702cc | 2073 | I32 pop2 = 0; |
a0d0e21e | 2074 | I32 gimme; |
8772537c | 2075 | I32 optype; |
a0d0e21e LW |
2076 | OP *nextop; |
2077 | SV **newsp; | |
2078 | PMOP *newpm; | |
a8bba7fa | 2079 | SV **mark; |
c445ea15 | 2080 | SV *sv = NULL; |
9d4ba2ae | 2081 | |
a0d0e21e | 2082 | |
533c011a | 2083 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2084 | cxix = dopoptoloop(cxstack_ix); |
2085 | if (cxix < 0) | |
a651a37d | 2086 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2087 | } |
2088 | else { | |
2089 | cxix = dopoptolabel(cPVOP->op_pv); | |
2090 | if (cxix < 0) | |
cea2e8a9 | 2091 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2092 | } |
2093 | if (cxix < cxstack_ix) | |
2094 | dounwind(cxix); | |
2095 | ||
2096 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2097 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2098 | mark = newsp; |
6b35e009 | 2099 | switch (CxTYPE(cx)) { |
a0d0e21e | 2100 | case CXt_LOOP: |
f86702cc | 2101 | pop2 = CXt_LOOP; |
a8bba7fa GS |
2102 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
2103 | nextop = cx->blk_loop.last_op->op_next; | |
a0d0e21e | 2104 | break; |
f86702cc | 2105 | case CXt_SUB: |
f86702cc | 2106 | pop2 = CXt_SUB; |
f39bc417 | 2107 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2108 | break; |
f86702cc | 2109 | case CXt_EVAL: |
2110 | POPEVAL(cx); | |
f39bc417 | 2111 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2112 | break; |
7766f137 GS |
2113 | case CXt_FORMAT: |
2114 | POPFORMAT(cx); | |
f39bc417 | 2115 | nextop = cx->blk_sub.retop; |
7766f137 | 2116 | break; |
a0d0e21e | 2117 | default: |
cea2e8a9 | 2118 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2119 | } |
2120 | ||
a1f49e72 | 2121 | TAINT_NOT; |
a0d0e21e | 2122 | if (gimme == G_SCALAR) { |
f86702cc | 2123 | if (MARK < SP) |
2124 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2125 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2126 | else |
3280af22 | 2127 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2128 | } |
54310121 | 2129 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2130 | while (++MARK <= SP) { |
f86702cc | 2131 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2132 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2133 | TAINT_NOT; /* Each item is independent */ |
2134 | } | |
f86702cc | 2135 | } |
2136 | SP = newsp; | |
2137 | PUTBACK; | |
2138 | ||
5dd42e15 DM |
2139 | LEAVE; |
2140 | cxstack_ix--; | |
f86702cc | 2141 | /* Stack values are safe: */ |
2142 | switch (pop2) { | |
2143 | case CXt_LOOP: | |
a8bba7fa | 2144 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2145 | LEAVE; |
f86702cc | 2146 | break; |
2147 | case CXt_SUB: | |
b0d9ce38 | 2148 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2149 | break; |
a0d0e21e | 2150 | } |
3280af22 | 2151 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2152 | |
b0d9ce38 | 2153 | LEAVESUB(sv); |
9d4ba2ae AL |
2154 | PERL_UNUSED_VAR(optype); |
2155 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2156 | return nextop; |
a0d0e21e LW |
2157 | } |
2158 | ||
2159 | PP(pp_next) | |
2160 | { | |
27da23d5 | 2161 | dVAR; |
a0d0e21e | 2162 | I32 cxix; |
c09156bb | 2163 | register PERL_CONTEXT *cx; |
85538317 | 2164 | I32 inner; |
a0d0e21e | 2165 | |
533c011a | 2166 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2167 | cxix = dopoptoloop(cxstack_ix); |
2168 | if (cxix < 0) | |
a651a37d | 2169 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2170 | } |
2171 | else { | |
2172 | cxix = dopoptolabel(cPVOP->op_pv); | |
2173 | if (cxix < 0) | |
cea2e8a9 | 2174 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2175 | } |
2176 | if (cxix < cxstack_ix) | |
2177 | dounwind(cxix); | |
2178 | ||
85538317 GS |
2179 | /* clear off anything above the scope we're re-entering, but |
2180 | * save the rest until after a possible continue block */ | |
2181 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2182 | TOPBLOCK(cx); |
85538317 GS |
2183 | if (PL_scopestack_ix < inner) |
2184 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2185 | PL_curcop = cx->blk_oldcop; |
1ba6ee2b | 2186 | return cx->blk_loop.next_op; |
a0d0e21e LW |
2187 | } |
2188 | ||
2189 | PP(pp_redo) | |
2190 | { | |
27da23d5 | 2191 | dVAR; |
a0d0e21e | 2192 | I32 cxix; |
c09156bb | 2193 | register PERL_CONTEXT *cx; |
a0d0e21e | 2194 | I32 oldsave; |
a034e688 | 2195 | OP* redo_op; |
a0d0e21e | 2196 | |
533c011a | 2197 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2198 | cxix = dopoptoloop(cxstack_ix); |
2199 | if (cxix < 0) | |
a651a37d | 2200 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2201 | } |
2202 | else { | |
2203 | cxix = dopoptolabel(cPVOP->op_pv); | |
2204 | if (cxix < 0) | |
cea2e8a9 | 2205 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2206 | } |
2207 | if (cxix < cxstack_ix) | |
2208 | dounwind(cxix); | |
2209 | ||
a034e688 DM |
2210 | redo_op = cxstack[cxix].blk_loop.redo_op; |
2211 | if (redo_op->op_type == OP_ENTER) { | |
2212 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2213 | cxstack_ix++; | |
2214 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2215 | redo_op = redo_op->op_next; | |
2216 | } | |
2217 | ||
a0d0e21e | 2218 | TOPBLOCK(cx); |
3280af22 | 2219 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2220 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2221 | FREETMPS; |
3a1b2b9e | 2222 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2223 | return redo_op; |
a0d0e21e LW |
2224 | } |
2225 | ||
0824fdcb | 2226 | STATIC OP * |
bfed75c6 | 2227 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2228 | { |
97aff369 | 2229 | dVAR; |
a0d0e21e | 2230 | OP **ops = opstack; |
bfed75c6 | 2231 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2232 | |
fc36a67e | 2233 | if (ops >= oplimit) |
cea2e8a9 | 2234 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2235 | if (o->op_type == OP_LEAVE || |
2236 | o->op_type == OP_SCOPE || | |
2237 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2238 | o->op_type == OP_LEAVESUB || |
11343788 | 2239 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2240 | { |
5dc0d613 | 2241 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2242 | if (ops >= oplimit) |
cea2e8a9 | 2243 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2244 | } |
c4aa4e48 | 2245 | *ops = 0; |
11343788 | 2246 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2247 | OP *kid; |
a0d0e21e | 2248 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2249 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 GS |
2250 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
2251 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) | |
a0d0e21e LW |
2252 | return kid; |
2253 | } | |
11343788 | 2254 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2255 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2256 | continue; |
ed8d0fe2 SM |
2257 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2258 | if (ops == opstack) | |
2259 | *ops++ = kid; | |
2260 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2261 | ops[-1]->op_type == OP_DBSTATE) | |
2262 | ops[-1] = kid; | |
2263 | else | |
2264 | *ops++ = kid; | |
2265 | } | |
155aba94 | 2266 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2267 | return o; |
a0d0e21e LW |
2268 | } |
2269 | } | |
c4aa4e48 | 2270 | *ops = 0; |
a0d0e21e LW |
2271 | return 0; |
2272 | } | |
2273 | ||
a0d0e21e LW |
2274 | PP(pp_goto) |
2275 | { | |
27da23d5 | 2276 | dVAR; dSP; |
cbbf8932 | 2277 | OP *retop = NULL; |
a0d0e21e | 2278 | I32 ix; |
c09156bb | 2279 | register PERL_CONTEXT *cx; |
fc36a67e | 2280 | #define GOTO_DEPTH 64 |
2281 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2282 | const char *label = NULL; |
bfed75c6 AL |
2283 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2284 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2285 | |
533c011a | 2286 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2287 | SV * const sv = POPs; |
a0d0e21e LW |
2288 | |
2289 | /* This egregious kludge implements goto &subroutine */ | |
2290 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2291 | I32 cxix; | |
c09156bb | 2292 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2293 | CV* cv = (CV*)SvRV(sv); |
2294 | SV** mark; | |
2295 | I32 items = 0; | |
2296 | I32 oldsave; | |
b1464ded | 2297 | bool reified = 0; |
a0d0e21e | 2298 | |
e8f7dd13 | 2299 | retry: |
4aa0a1f7 | 2300 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2301 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2302 | if (gv) { |
7fc63493 | 2303 | GV *autogv; |
e8f7dd13 GS |
2304 | SV *tmpstr; |
2305 | /* autoloaded stub? */ | |
2306 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2307 | goto retry; | |
2308 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2309 | GvNAMELEN(gv), FALSE); | |
2310 | if (autogv && (cv = GvCV(autogv))) | |
2311 | goto retry; | |
2312 | tmpstr = sv_newmortal(); | |
c445ea15 | 2313 | gv_efullname3(tmpstr, gv, NULL); |
35c1215d | 2314 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"",tmpstr); |
4aa0a1f7 | 2315 | } |
cea2e8a9 | 2316 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2317 | } |
2318 | ||
a0d0e21e | 2319 | /* First do some returnish stuff. */ |
b37c2d43 | 2320 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2321 | FREETMPS; |
a0d0e21e LW |
2322 | cxix = dopoptosub(cxstack_ix); |
2323 | if (cxix < 0) | |
cea2e8a9 | 2324 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2325 | if (cxix < cxstack_ix) |
2326 | dounwind(cxix); | |
2327 | TOPBLOCK(cx); | |
2d43a17f | 2328 | SPAGAIN; |
564abe23 | 2329 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2330 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2331 | if (CxREALEVAL(cx)) |
2332 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2333 | else | |
2334 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2335 | } |
9850bf21 RH |
2336 | else if (CxMULTICALL(cx)) |
2337 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
d8b46c1b GS |
2338 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) { |
2339 | /* put @_ back onto stack */ | |
a0d0e21e | 2340 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2341 | |
93965878 | 2342 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2343 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2344 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2345 | SvREFCNT_dec(GvAV(PL_defgv)); |
2346 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2347 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2348 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2349 | if (AvREAL(av)) { |
b1464ded DM |
2350 | reified = 1; |
2351 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2352 | av = newAV(); |
2353 | av_extend(av, items-1); | |
11ca45c0 | 2354 | AvREIFY_only(av); |
dd2155a4 | 2355 | PAD_SVl(0) = (SV*)(cx->blk_sub.argarray = av); |
62b1ebc2 | 2356 | } |
a0d0e21e | 2357 | } |
aed2304a | 2358 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2359 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2360 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2361 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2362 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2363 | } |
a45cdc79 DM |
2364 | mark = SP; |
2365 | SP += items; | |
6b35e009 | 2366 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2367 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2368 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2369 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2370 | LEAVE_SCOPE(oldsave); |
2371 | ||
2372 | /* Now do some callish stuff. */ | |
2373 | SAVETMPS; | |
5023d17a | 2374 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2375 | if (CvISXSUB(cv)) { |
b37c2d43 | 2376 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2377 | SV **newsp; |
2378 | I32 gimme; | |
b1464ded DM |
2379 | if (reified) { |
2380 | I32 index; | |
2381 | for (index=0; index<items; index++) | |
2382 | sv_2mortal(SP[-index]); | |
2383 | } | |
1fa4e549 | 2384 | |
b37c2d43 AL |
2385 | /* XS subs don't have a CxSUB, so pop it */ |
2386 | POPBLOCK(cx, PL_curpm); | |
2387 | /* Push a mark for the start of arglist */ | |
2388 | PUSHMARK(mark); | |
2389 | PUTBACK; | |
2390 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2391 | LEAVE; |
5eff7df7 | 2392 | return retop; |
a0d0e21e LW |
2393 | } |
2394 | else { | |
b37c2d43 | 2395 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2396 | if (CxTYPE(cx) == CXt_EVAL) { |
3280af22 NIS |
2397 | PL_in_eval = cx->blk_eval.old_in_eval; |
2398 | PL_eval_root = cx->blk_eval.old_eval_root; | |
b150fb22 RH |
2399 | cx->cx_type = CXt_SUB; |
2400 | cx->blk_sub.hasargs = 0; | |
2401 | } | |
a0d0e21e | 2402 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2403 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2404 | |
a0d0e21e LW |
2405 | CvDEPTH(cv)++; |
2406 | if (CvDEPTH(cv) < 2) | |
b37c2d43 | 2407 | SvREFCNT_inc_void_NN(cv); |
dd2155a4 | 2408 | else { |
599cee73 | 2409 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION)) |
44a8e56a | 2410 | sub_crush_depth(cv); |
26019298 | 2411 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2412 | } |
fd617465 DM |
2413 | SAVECOMPPAD(); |
2414 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
6d4ff0d2 | 2415 | if (cx->blk_sub.hasargs) |
6d4ff0d2 | 2416 | { |
b37c2d43 | 2417 | AV* const av = (AV*)PAD_SVl(0); |
a0d0e21e | 2418 | |
3280af22 | 2419 | cx->blk_sub.savearray = GvAV(PL_defgv); |
b37c2d43 | 2420 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc_simple(av); |
dd2155a4 | 2421 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2422 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2423 | |
2424 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2425 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2426 | if (AvARRAY(av) != ary) { |
2427 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
f880fe2f | 2428 | SvPV_set(av, (char*)ary); |
a0d0e21e LW |
2429 | } |
2430 | if (items >= AvMAX(av) + 1) { | |
2431 | AvMAX(av) = items - 1; | |
2432 | Renew(ary,items+1,SV*); | |
2433 | AvALLOC(av) = ary; | |
f880fe2f | 2434 | SvPV_set(av, (char*)ary); |
a0d0e21e LW |
2435 | } |
2436 | } | |
a45cdc79 | 2437 | ++mark; |
a0d0e21e | 2438 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2439 | AvFILLp(av) = items - 1; |
d8b46c1b | 2440 | assert(!AvREAL(av)); |
b1464ded DM |
2441 | if (reified) { |
2442 | /* transfer 'ownership' of refcnts to new @_ */ | |
2443 | AvREAL_on(av); | |
2444 | AvREIFY_off(av); | |
2445 | } | |
a0d0e21e LW |
2446 | while (items--) { |
2447 | if (*mark) | |
2448 | SvTEMP_off(*mark); | |
2449 | mark++; | |
2450 | } | |
2451 | } | |
491527d0 | 2452 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
44a8e56a | 2453 | /* |
2454 | * We do not care about using sv to call CV; | |
2455 | * it's for informational purposes only. | |
2456 | */ | |
890ce7af | 2457 | SV * const sv = GvSV(PL_DBsub); |
f398eb67 | 2458 | save_item(sv); |
491527d0 | 2459 | if (PERLDB_SUB_NN) { |
890ce7af | 2460 | const int type = SvTYPE(sv); |
f398eb67 NC |
2461 | if (type < SVt_PVIV && type != SVt_IV) |
2462 | sv_upgrade(sv, SVt_PVIV); | |
7619c85e | 2463 | (void)SvIOK_on(sv); |
45977657 | 2464 | SvIV_set(sv, PTR2IV(cv)); /* Do it the quickest way */ |
491527d0 | 2465 | } else { |
c445ea15 | 2466 | gv_efullname3(sv, CvGV(cv), NULL); |
491527d0 | 2467 | } |
b37c2d43 AL |
2468 | if (PERLDB_GOTO) { |
2469 | CV * const gotocv = get_cv("DB::goto", FALSE); | |
2470 | if (gotocv) { | |
2471 | PUSHMARK( PL_stack_sp ); | |
2472 | call_sv((SV*)gotocv, G_SCALAR | G_NODEBUG); | |
2473 | PL_stack_sp--; | |
2474 | } | |
491527d0 | 2475 | } |
1ce6579f | 2476 | } |
a0d0e21e LW |
2477 | RETURNOP(CvSTART(cv)); |
2478 | } | |
2479 | } | |
1614b0e3 | 2480 | else { |
0510663f | 2481 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2482 | if (!(do_dump || *label)) |
cea2e8a9 | 2483 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2484 | } |
a0d0e21e | 2485 | } |
533c011a | 2486 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2487 | if (! do_dump) |
cea2e8a9 | 2488 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2489 | } |
2490 | else | |
2491 | label = cPVOP->op_pv; | |
2492 | ||
2493 | if (label && *label) { | |
cbbf8932 | 2494 | OP *gotoprobe = NULL; |
3b2447bc | 2495 | bool leaving_eval = FALSE; |
33d34e4c | 2496 | bool in_block = FALSE; |
cbbf8932 | 2497 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2498 | |
2499 | /* find label */ | |
2500 | ||
3280af22 | 2501 | PL_lastgotoprobe = 0; |
a0d0e21e LW |
2502 | *enterops = 0; |
2503 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2504 | cx = &cxstack[ix]; | |
6b35e009 | 2505 | switch (CxTYPE(cx)) { |
a0d0e21e | 2506 | case CXt_EVAL: |
3b2447bc | 2507 | leaving_eval = TRUE; |
971ecbe6 | 2508 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2509 | gotoprobe = (last_eval_cx ? |
2510 | last_eval_cx->blk_eval.old_eval_root : | |
2511 | PL_eval_root); | |
2512 | last_eval_cx = cx; | |
9c5794fe RH |
2513 | break; |
2514 | } | |
2515 | /* else fall through */ | |
a0d0e21e LW |
2516 | case CXt_LOOP: |
2517 | gotoprobe = cx->blk_oldcop->op_sibling; | |
2518 | break; | |
2519 | case CXt_SUBST: | |
2520 | continue; | |
2521 | case CXt_BLOCK: | |
33d34e4c | 2522 | if (ix) { |
a0d0e21e | 2523 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2524 | in_block = TRUE; |
2525 | } else | |
3280af22 | 2526 | gotoprobe = PL_main_root; |
a0d0e21e | 2527 | break; |
b3933176 | 2528 | case CXt_SUB: |
9850bf21 | 2529 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2530 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2531 | break; | |
2532 | } | |
2533 | /* FALL THROUGH */ | |
7766f137 | 2534 | case CXt_FORMAT: |
0a753a76 | 2535 | case CXt_NULL: |
a651a37d | 2536 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2537 | default: |
2538 | if (ix) | |
cea2e8a9 | 2539 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2540 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2541 | break; |
2542 | } | |
2b597662 GS |
2543 | if (gotoprobe) { |
2544 | retop = dofindlabel(gotoprobe, label, | |
2545 | enterops, enterops + GOTO_DEPTH); | |
2546 | if (retop) | |
2547 | break; | |
2548 | } | |
3280af22 | 2549 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2550 | } |
2551 | if (!retop) | |
cea2e8a9 | 2552 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2553 | |
3b2447bc RH |
2554 | /* if we're leaving an eval, check before we pop any frames |
2555 | that we're not going to punt, otherwise the error | |
2556 | won't be caught */ | |
2557 | ||
2558 | if (leaving_eval && *enterops && enterops[1]) { | |
2559 | I32 i; | |
2560 | for (i = 1; enterops[i]; i++) | |
2561 | if (enterops[i]->op_type == OP_ENTERITER) | |
2562 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2563 | } | |
2564 | ||
a0d0e21e LW |
2565 | /* pop unwanted frames */ |
2566 | ||
2567 | if (ix < cxstack_ix) { | |
2568 | I32 oldsave; | |
2569 | ||
2570 | if (ix < 0) | |
2571 | ix = 0; | |
2572 | dounwind(ix); | |
2573 | TOPBLOCK(cx); | |
3280af22 | 2574 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2575 | LEAVE_SCOPE(oldsave); |
2576 | } | |
2577 | ||
2578 | /* push wanted frames */ | |
2579 | ||
748a9306 | 2580 | if (*enterops && enterops[1]) { |
0bd48802 | 2581 | OP * const oldop = PL_op; |
33d34e4c AE |
2582 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2583 | for (; enterops[ix]; ix++) { | |
533c011a | 2584 | PL_op = enterops[ix]; |
84902520 TB |
2585 | /* Eventually we may want to stack the needed arguments |
2586 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2587 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2588 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2589 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2590 | } |
533c011a | 2591 | PL_op = oldop; |
a0d0e21e LW |
2592 | } |
2593 | } | |
2594 | ||
2595 | if (do_dump) { | |
a5f75d66 | 2596 | #ifdef VMS |
6b88bc9c | 2597 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2598 | #endif |
3280af22 NIS |
2599 | PL_restartop = retop; |
2600 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2601 | |
2602 | my_unexec(); | |
2603 | ||
3280af22 NIS |
2604 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2605 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2606 | } |
2607 | ||
2608 | RETURNOP(retop); | |
2609 | } | |
2610 | ||
2611 | PP(pp_exit) | |
2612 | { | |
97aff369 | 2613 | dVAR; |
39644a26 | 2614 | dSP; |
a0d0e21e LW |
2615 | I32 anum; |
2616 | ||
2617 | if (MAXARG < 1) | |
2618 | anum = 0; | |
ff0cee69 | 2619 | else { |
a0d0e21e | 2620 | anum = SvIVx(POPs); |
d98f61e7 GS |
2621 | #ifdef VMS |
2622 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2623 | anum = 0; |
96e176bf | 2624 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2625 | #endif |
2626 | } | |
cc3604b1 | 2627 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
a0d0e21e | 2628 | my_exit(anum); |
3280af22 | 2629 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2630 | RETURN; |
2631 | } | |
2632 | ||
a0d0e21e LW |
2633 | /* Eval. */ |
2634 | ||
0824fdcb | 2635 | STATIC void |
cea2e8a9 | 2636 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2637 | { |
504618e9 | 2638 | const char *s = SvPVX_const(sv); |
890ce7af | 2639 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2640 | I32 line = 1; |
a0d0e21e LW |
2641 | |
2642 | while (s && s < send) { | |
f54cb97a | 2643 | const char *t; |
561b68a9 | 2644 | SV * const tmpstr = newSV(0); |
a0d0e21e LW |
2645 | |
2646 | sv_upgrade(tmpstr, SVt_PVMG); | |
2647 | t = strchr(s, '\n'); | |
2648 | if (t) | |
2649 | t++; | |
2650 | else | |
2651 | t = send; | |
2652 | ||
2653 | sv_setpvn(tmpstr, s, t - s); | |
2654 | av_store(array, line++, tmpstr); | |
2655 | s = t; | |
2656 | } | |
2657 | } | |
2658 | ||
901017d6 | 2659 | STATIC void |
14dd3ad8 GS |
2660 | S_docatch_body(pTHX) |
2661 | { | |
97aff369 | 2662 | dVAR; |
cea2e8a9 | 2663 | CALLRUNOPS(aTHX); |
901017d6 | 2664 | return; |
312caa8e CS |
2665 | } |
2666 | ||
0824fdcb | 2667 | STATIC OP * |
cea2e8a9 | 2668 | S_docatch(pTHX_ OP *o) |
1e422769 | 2669 | { |
97aff369 | 2670 | dVAR; |
6224f72b | 2671 | int ret; |
06b5626a | 2672 | OP * const oldop = PL_op; |
db36c5a1 | 2673 | dJMPENV; |
1e422769 | 2674 | |
1e422769 | 2675 | #ifdef DEBUGGING |
54310121 | 2676 | assert(CATCH_GET == TRUE); |
1e422769 | 2677 | #endif |
312caa8e | 2678 | PL_op = o; |
8bffa5f8 | 2679 | |
14dd3ad8 | 2680 | JMPENV_PUSH(ret); |
6224f72b | 2681 | switch (ret) { |
312caa8e | 2682 | case 0: |
abd70938 DM |
2683 | assert(cxstack_ix >= 0); |
2684 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2685 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 GS |
2686 | redo_body: |
2687 | docatch_body(); | |
312caa8e CS |
2688 | break; |
2689 | case 3: | |
8bffa5f8 | 2690 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2691 | |
2692 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2693 | * of the stack; the way die_where() currently works, this | |
2694 | * assumption is valid. In theory The cur_top_env value should be | |
2695 | * returned in another global, the way retop (aka PL_restartop) | |
2696 | * is. */ | |
2697 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2698 | ||
2699 | if (PL_restartop | |
2700 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2701 | { | |
312caa8e CS |
2702 | PL_op = PL_restartop; |
2703 | PL_restartop = 0; | |
2704 | goto redo_body; | |
2705 | } | |
2706 | /* FALL THROUGH */ | |
2707 | default: | |
14dd3ad8 | 2708 | JMPENV_POP; |
533c011a | 2709 | PL_op = oldop; |
6224f72b | 2710 | JMPENV_JUMP(ret); |
1e422769 | 2711 | /* NOTREACHED */ |
1e422769 | 2712 | } |
14dd3ad8 | 2713 | JMPENV_POP; |
533c011a | 2714 | PL_op = oldop; |
5f66b61c | 2715 | return NULL; |
1e422769 | 2716 | } |
2717 | ||
c277df42 | 2718 | OP * |
bfed75c6 | 2719 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2720 | /* sv Text to convert to OP tree. */ |
2721 | /* startop op_free() this to undo. */ | |
2722 | /* code Short string id of the caller. */ | |
2723 | { | |
f7997f86 | 2724 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2725 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2726 | PERL_CONTEXT *cx; |
2727 | SV **newsp; | |
b094c71d | 2728 | I32 gimme = G_VOID; |
c277df42 IZ |
2729 | I32 optype; |
2730 | OP dummy; | |
155aba94 | 2731 | OP *rop; |
83ee9e09 GS |
2732 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2733 | char *tmpbuf = tbuf; | |
c277df42 | 2734 | char *safestr; |
a3985cdc | 2735 | int runtime; |
601f1833 | 2736 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2737 | STRLEN len; |
c277df42 IZ |
2738 | |
2739 | ENTER; | |
2740 | lex_start(sv); | |
2741 | SAVETMPS; | |
2742 | /* switch to eval mode */ | |
2743 | ||
923e4eb5 | 2744 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2745 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2746 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2747 | } |
83ee9e09 | 2748 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2749 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2750 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2751 | code, (unsigned long)++PL_evalseq, | |
2752 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2753 | tmpbuf = SvPVX(sv); | |
fc009855 | 2754 | len = SvCUR(sv); |
83ee9e09 GS |
2755 | } |
2756 | else | |
fc009855 NC |
2757 | len = my_sprintf(tmpbuf, "_<(%.10s_eval %lu)", code, |
2758 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2759 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2760 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2761 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2762 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2763 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2764 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2765 | (i.e. before run-time proper). To work around the coredump that | |
2766 | ensues, we always turn GvMULTI_on for any globals that were | |
2767 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2768 | safestr = savepvn(tmpbuf, len); |
2769 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2770 | SAVEHINTS(); |
d1ca3daa | 2771 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2772 | PL_opsave = op; |
d1ca3daa | 2773 | #else |
7766f137 | 2774 | SAVEVPTR(PL_op); |
d1ca3daa | 2775 | #endif |
c277df42 | 2776 | |
a3985cdc | 2777 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2778 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2779 | if (runtime) |
d819b83a | 2780 | runcv = find_runcv(NULL); |
a3985cdc | 2781 | |
533c011a | 2782 | PL_op = &dummy; |
13b51b79 | 2783 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2784 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2785 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
a0714e2c | 2786 | PUSHEVAL(cx, 0, NULL); |
a3985cdc DM |
2787 | |
2788 | if (runtime) | |
2789 | rop = doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); | |
2790 | else | |
2791 | rop = doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); | |
13b51b79 | 2792 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2793 | POPEVAL(cx); |
c277df42 IZ |
2794 | |
2795 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2796 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2797 | lex_end(); |
f3548bdc | 2798 | /* XXX DAPM do this properly one year */ |
b37c2d43 | 2799 | *padp = (AV*)SvREFCNT_inc_simple(PL_comppad); |
c277df42 | 2800 | LEAVE; |
923e4eb5 | 2801 | if (IN_PERL_COMPILETIME) |
eb160463 | 2802 | PL_compiling.op_private = (U8)(PL_hints & HINT_PRIVATE_MASK); |
d1ca3daa | 2803 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2804 | op = PL_opsave; |
d1ca3daa | 2805 | #endif |
9d4ba2ae AL |
2806 | PERL_UNUSED_VAR(newsp); |
2807 | PERL_UNUSED_VAR(optype); | |
2808 | ||
c277df42 IZ |
2809 | return rop; |
2810 | } | |
2811 | ||
a3985cdc DM |
2812 | |
2813 | /* | |
2814 | =for apidoc find_runcv | |
2815 | ||
2816 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2817 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2818 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2819 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2820 | than in the scope of the debugger itself). |
a3985cdc DM |
2821 | |
2822 | =cut | |
2823 | */ | |
2824 | ||
2825 | CV* | |
d819b83a | 2826 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2827 | { |
97aff369 | 2828 | dVAR; |
a3985cdc | 2829 | PERL_SI *si; |
a3985cdc | 2830 | |
d819b83a DM |
2831 | if (db_seqp) |
2832 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2833 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2834 | I32 ix; |
a3985cdc | 2835 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2836 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2837 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2838 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2839 | /* skip DB:: code */ |
2840 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2841 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2842 | continue; | |
2843 | } | |
2844 | return cv; | |
2845 | } | |
a3985cdc DM |
2846 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2847 | return PL_compcv; | |
2848 | } | |
2849 | } | |
2850 | return PL_main_cv; | |
2851 | } | |
2852 | ||
2853 | ||
2854 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2855 | * In the last case, startop is non-null, and contains the address of | |
2856 | * a pointer that should be set to the just-compiled code. | |
2857 | * outside is the lexically enclosing CV (if any) that invoked us. | |
2858 | */ | |
2859 | ||
4d1ff10f | 2860 | /* With USE_5005THREADS, eval_owner must be held on entry to doeval */ |
0824fdcb | 2861 | STATIC OP * |
a3985cdc | 2862 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 2863 | { |
27da23d5 | 2864 | dVAR; dSP; |
46c461b5 | 2865 | OP * const saveop = PL_op; |
a0d0e21e | 2866 | |
6dc8a9e4 IZ |
2867 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
2868 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
2869 | : EVAL_INEVAL); | |
a0d0e21e | 2870 | |
1ce6579f | 2871 | PUSHMARK(SP); |
2872 | ||
3280af22 | 2873 | SAVESPTR(PL_compcv); |
561b68a9 | 2874 | PL_compcv = (CV*)newSV(0); |
3280af22 | 2875 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
1aff0e91 | 2876 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
2877 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
2878 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
2879 | ||
a3985cdc | 2880 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
b37c2d43 | 2881 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outside); |
a3985cdc | 2882 | |
dd2155a4 | 2883 | /* set up a scratch pad */ |
a0d0e21e | 2884 | |
dd2155a4 | 2885 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
2c05e328 | 2886 | |
07055b4c | 2887 | |
26d9b02f | 2888 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ |
748a9306 | 2889 | |
a0d0e21e LW |
2890 | /* make sure we compile in the right package */ |
2891 | ||
ed094faf | 2892 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 2893 | SAVESPTR(PL_curstash); |
ed094faf | 2894 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 2895 | } |
3280af22 NIS |
2896 | SAVESPTR(PL_beginav); |
2897 | PL_beginav = newAV(); | |
2898 | SAVEFREESV(PL_beginav); | |
24944567 | 2899 | SAVEI32(PL_error_count); |
a0d0e21e LW |
2900 | |
2901 | /* try to compile it */ | |
2902 | ||
5f66b61c | 2903 | PL_eval_root = NULL; |
3280af22 NIS |
2904 | PL_error_count = 0; |
2905 | PL_curcop = &PL_compiling; | |
2906 | PL_curcop->cop_arybase = 0; | |
5f66b61c | 2907 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 2908 | PL_in_eval |= EVAL_KEEPERR; |
1ce6579f | 2909 | else |
c69006e4 | 2910 | sv_setpvn(ERRSV,"",0); |
3280af22 | 2911 | if (yyparse() || PL_error_count || !PL_eval_root) { |
0c58d367 | 2912 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 2913 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 2914 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 2915 | const char *msg; |
bfed75c6 | 2916 | |
533c011a | 2917 | PL_op = saveop; |
3280af22 NIS |
2918 | if (PL_eval_root) { |
2919 | op_free(PL_eval_root); | |
5f66b61c | 2920 | PL_eval_root = NULL; |
a0d0e21e | 2921 | } |
3280af22 | 2922 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 2923 | if (!startop) { |
3280af22 | 2924 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2925 | POPEVAL(cx); |
c277df42 | 2926 | } |
a0d0e21e LW |
2927 | lex_end(); |
2928 | LEAVE; | |
9d4ba2ae AL |
2929 | |
2930 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 2931 | if (optype == OP_REQUIRE) { |
b464bac0 | 2932 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 2933 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 2934 | &PL_sv_undef, 0); |
5a844595 GS |
2935 | DIE(aTHX_ "%sCompilation failed in require", |
2936 | *msg ? msg : "Unknown error\n"); | |
2937 | } | |
2938 | else if (startop) { | |
3280af22 | 2939 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2940 | POPEVAL(cx); |
5a844595 GS |
2941 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
2942 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 2943 | } |
9d7f88dd | 2944 | else { |
9d7f88dd SR |
2945 | if (!*msg) { |
2946 | sv_setpv(ERRSV, "Compilation error"); | |
2947 | } | |
2948 | } | |
9d4ba2ae | 2949 | PERL_UNUSED_VAR(newsp); |
a0d0e21e LW |
2950 | RETPUSHUNDEF; |
2951 | } | |
57843af0 | 2952 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 2953 | if (startop) { |
3280af22 | 2954 | *startop = PL_eval_root; |
c277df42 | 2955 | } else |
3280af22 | 2956 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
2957 | |
2958 | /* Set the context for this new optree. | |
2959 | * If the last op is an OP_REQUIRE, force scalar context. | |
2960 | * Otherwise, propagate the context from the eval(). */ | |
2961 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
2962 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
2963 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
2964 | == OP_REQUIRE) | |
2965 | scalar(PL_eval_root); | |
2966 | else if (gimme & G_VOID) | |
3280af22 | 2967 | scalarvoid(PL_eval_root); |
54310121 | 2968 | else if (gimme & G_ARRAY) |
3280af22 | 2969 | list(PL_eval_root); |
a0d0e21e | 2970 | else |
3280af22 | 2971 | scalar(PL_eval_root); |
a0d0e21e LW |
2972 | |
2973 | DEBUG_x(dump_eval()); | |
2974 | ||
55497cff | 2975 | /* Register with debugger: */ |
84902520 | 2976 | if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) { |
890ce7af | 2977 | CV * const cv = get_cv("DB::postponed", FALSE); |
55497cff | 2978 | if (cv) { |
2979 | dSP; | |
924508f0 | 2980 | PUSHMARK(SP); |
cc49e20b | 2981 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
55497cff | 2982 | PUTBACK; |
864dbfa3 | 2983 | call_sv((SV*)cv, G_DISCARD); |
55497cff | 2984 | } |
2985 | } | |
2986 | ||
a0d0e21e LW |
2987 | /* compiled okay, so do it */ |
2988 | ||
3280af22 NIS |
2989 | CvDEPTH(PL_compcv) = 1; |
2990 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 2991 | PL_op = saveop; /* The caller may need it. */ |
6dc8a9e4 | 2992 | PL_lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 2993 | |
3280af22 | 2994 | RETURNOP(PL_eval_start); |
a0d0e21e LW |
2995 | } |
2996 | ||
a6c40364 | 2997 | STATIC PerlIO * |
ce8abf5f SP |
2998 | S_check_type_and_open(pTHX_ const char *name, const char *mode) |
2999 | { | |
3000 | Stat_t st; | |
c445ea15 | 3001 | const int st_rc = PerlLIO_stat(name, &st); |
ce8abf5f | 3002 | if (st_rc < 0) { |
4608196e | 3003 | return NULL; |
ce8abf5f SP |
3004 | } |
3005 | ||
3006 | if(S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { | |
3007 | Perl_die(aTHX_ "%s %s not allowed in require", | |
3008 | S_ISDIR(st.st_mode) ? "Directory" : "Block device", name); | |
3009 | } | |
3010 | return PerlIO_open(name, mode); | |
3011 | } | |
3012 | ||
3013 | STATIC PerlIO * | |
7925835c | 3014 | S_doopen_pm(pTHX_ const char *name, const char *mode) |
b295d113 | 3015 | { |
7925835c | 3016 | #ifndef PERL_DISABLE_PMC |
f54cb97a | 3017 | const STRLEN namelen = strlen(name); |
b295d113 TH |
3018 | PerlIO *fp; |
3019 | ||
7894fbab | 3020 | if (namelen > 3 && strEQ(name + namelen - 3, ".pm")) { |
9d4ba2ae | 3021 | SV * const pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c'); |
349d4f2f | 3022 | const char * const pmc = SvPV_nolen_const(pmcsv); |
a6c40364 GS |
3023 | Stat_t pmcstat; |
3024 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { | |
85e8f315 | 3025 | fp = check_type_and_open(name, mode); |
a6c40364 GS |
3026 | } |
3027 | else { | |
9d4ba2ae | 3028 | Stat_t pmstat; |
b295d113 | 3029 | if (PerlLIO_stat(name, &pmstat) < 0 || |
a6c40364 GS |
3030 | pmstat.st_mtime < pmcstat.st_mtime) |
3031 | { | |
85e8f315 | 3032 | fp = check_type_and_open(pmc, mode); |
a6c40364 GS |
3033 | } |
3034 | else { | |
85e8f315 | 3035 | fp = check_type_and_open(name, mode); |
a6c40364 | 3036 | } |
b295d113 | 3037 | } |
a6c40364 GS |
3038 | SvREFCNT_dec(pmcsv); |
3039 | } | |
3040 | else { | |
85e8f315 | 3041 | fp = check_type_and_open(name, mode); |
b295d113 | 3042 | } |
b295d113 | 3043 | return fp; |
7925835c | 3044 | #else |
85e8f315 | 3045 | return check_type_and_open(name, mode); |
7925835c | 3046 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 TH |
3047 | } |
3048 | ||
a0d0e21e LW |
3049 | PP(pp_require) |
3050 | { | |
27da23d5 | 3051 | dVAR; dSP; |
c09156bb | 3052 | register PERL_CONTEXT *cx; |
a0d0e21e | 3053 | SV *sv; |
5c144d81 | 3054 | const char *name; |
6132ea6c | 3055 | STRLEN len; |
c445ea15 AL |
3056 | const char *tryname = NULL; |
3057 | SV *namesv = NULL; | |
f54cb97a | 3058 | const I32 gimme = GIMME_V; |
bbed91b5 | 3059 | int filter_has_file = 0; |
c445ea15 AL |
3060 | PerlIO *tryrsfp = NULL; |
3061 | GV *filter_child_proc = NULL; | |
3062 | SV *filter_state = NULL; | |
3063 | SV *filter_sub = NULL; | |
3064 | SV *hook_sv = NULL; | |
6ec9efec JH |
3065 | SV *encoding; |
3066 | OP *op; | |
a0d0e21e LW |
3067 | |
3068 | sv = POPs; | |
d7aa5382 JP |
3069 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
3070 | if ( SvVOK(sv) && ckWARN(WARN_PORTABLE) ) /* require v5.6.1 */ | |
9014280d | 3071 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
e3407aba | 3072 | "v-string in use/require non-portable"); |
d7aa5382 JP |
3073 | |
3074 | sv = new_version(sv); | |
3075 | if (!sv_derived_from(PL_patchlevel, "version")) | |
2593c6c6 | 3076 | upg_version(PL_patchlevel); |
149c1637 | 3077 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
468aa647 RGS |
3078 | if ( vcmp(sv,PL_patchlevel) < 0 ) |
3079 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", | |
3080 | vnormal(sv), vnormal(PL_patchlevel)); | |
3081 | } | |
3082 | else { | |
3083 | if ( vcmp(sv,PL_patchlevel) > 0 ) | |
3084 | DIE(aTHX_ "Perl %"SVf" required--this is only %"SVf", stopped", | |
3085 | vnormal(sv), vnormal(PL_patchlevel)); | |
3086 | } | |
d7aa5382 | 3087 | |
4305d8ab | 3088 | RETPUSHYES; |
a0d0e21e | 3089 | } |
5c144d81 | 3090 | name = SvPV_const(sv, len); |
6132ea6c | 3091 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3092 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3093 | TAINT_PROPER("require"); |
44f8325f | 3094 | if (PL_op->op_type == OP_REQUIRE) { |
0bd48802 | 3095 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); |
44f8325f AL |
3096 | if ( svp ) { |
3097 | if (*svp != &PL_sv_undef) | |
3098 | RETPUSHYES; | |
3099 | else | |
3100 | DIE(aTHX_ "Compilation failed in require"); | |
3101 | } | |
4d8b06f1 | 3102 | } |
a0d0e21e LW |
3103 | |
3104 | /* prepare to compile file */ | |
3105 | ||
be4b629d | 3106 | if (path_is_absolute(name)) { |
46fc3d4c | 3107 | tryname = name; |
7925835c | 3108 | tryrsfp = doopen_pm(name,PERL_SCRIPT_MODE); |
bf4acbe4 | 3109 | } |
67627c52 JH |
3110 | #ifdef MACOS_TRADITIONAL |
3111 | if (!tryrsfp) { | |
3112 | char newname[256]; | |
3113 | ||
3114 | MacPerl_CanonDir(name, newname, 1); | |
3115 | if (path_is_absolute(newname)) { | |
3116 | tryname = newname; | |
7925835c | 3117 | tryrsfp = doopen_pm(newname,PERL_SCRIPT_MODE); |
67627c52 JH |
3118 | } |
3119 | } | |
3120 | #endif | |
be4b629d | 3121 | if (!tryrsfp) { |
44f8325f | 3122 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3123 | I32 i; |
748a9306 | 3124 | #ifdef VMS |
46fc3d4c | 3125 | char *unixname; |
c445ea15 | 3126 | if ((unixname = tounixspec(name, NULL)) != NULL) |
46fc3d4c | 3127 | #endif |
3128 | { | |
561b68a9 | 3129 | namesv = newSV(0); |
46fc3d4c | 3130 | for (i = 0; i <= AvFILL(ar); i++) { |
bbed91b5 KF |
3131 | SV *dirsv = *av_fetch(ar, i, TRUE); |
3132 | ||
3133 | if (SvROK(dirsv)) { | |
3134 | int count; | |
3135 | SV *loader = dirsv; | |
3136 | ||
e14e2dc8 NC |
3137 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3138 | && !sv_isobject(loader)) | |
3139 | { | |
bbed91b5 KF |
3140 | loader = *av_fetch((AV *)SvRV(loader), 0, TRUE); |
3141 | } | |
3142 | ||
b900a521 | 3143 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3144 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3145 | tryname = SvPVX_const(namesv); |
c445ea15 | 3146 | tryrsfp = NULL; |
bbed91b5 KF |
3147 | |
3148 | ENTER; | |
3149 | SAVETMPS; | |
3150 | EXTEND(SP, 2); | |
3151 | ||
3152 | PUSHMARK(SP); | |
3153 | PUSHs(dirsv); | |
3154 | PUSHs(sv); | |
3155 | PUTBACK; | |
e982885c NC |
3156 | if (sv_isobject(loader)) |
3157 | count = call_method("INC", G_ARRAY); | |
3158 | else | |
3159 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3160 | SPAGAIN; |
3161 | ||
3162 | if (count > 0) { | |
3163 | int i = 0; | |
3164 | SV *arg; | |
3165 | ||
3166 | SP -= count - 1; | |
3167 | arg = SP[i++]; | |
3168 | ||
3169 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVGV) { | |
3170 | arg = SvRV(arg); | |
3171 | } | |
3172 | ||
3173 | if (SvTYPE(arg) == SVt_PVGV) { | |
3174 | IO *io = GvIO((GV *)arg); | |
3175 | ||
3176 | ++filter_has_file; | |
3177 | ||
3178 | if (io) { | |
3179 | tryrsfp = IoIFP(io); | |
50952442 | 3180 | if (IoTYPE(io) == IoTYPE_PIPE) { |
bbed91b5 KF |
3181 | /* reading from a child process doesn't |
3182 | nest -- when returning from reading | |
3183 | the inner module, the outer one is | |
3184 | unreadable (closed?) I've tried to | |
3185 | save the gv to manage the lifespan of | |
3186 | the pipe, but this didn't help. XXX */ | |
3187 | filter_child_proc = (GV *)arg; | |
b37c2d43 | 3188 | SvREFCNT_inc_simple_void(filter_child_proc); |
bbed91b5 KF |
3189 | } |
3190 | else { | |
3191 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { | |
3192 | PerlIO_close(IoOFP(io)); | |
3193 | } | |
4608196e RGS |
3194 | IoIFP(io) = NULL; |
3195 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3196 | } |
3197 | } | |
3198 | ||
3199 | if (i < count) { | |
3200 | arg = SP[i++]; | |
3201 | } | |
3202 | } | |
3203 | ||
3204 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3205 | filter_sub = arg; | |
b37c2d43 | 3206 | SvREFCNT_inc_void_NN(filter_sub); |
bbed91b5 KF |
3207 | |
3208 | if (i < count) { | |
3209 | filter_state = SP[i]; | |
b37c2d43 | 3210 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 KF |
3211 | } |
3212 | ||
c445ea15 AL |
3213 | if (!tryrsfp) { |
3214 | tryrsfp = PerlIO_open("/dev/null", PERL_SCRIPT_MODE); | |
bbed91b5 KF |
3215 | } |
3216 | } | |
1d06aecd | 3217 | SP--; |
bbed91b5 KF |
3218 | } |
3219 | ||
3220 | PUTBACK; | |
3221 | FREETMPS; | |
3222 | LEAVE; | |
3223 | ||
3224 | if (tryrsfp) { | |
89ccab8c | 3225 | hook_sv = dirsv; |
bbed91b5 KF |
3226 | break; |
3227 | } | |
3228 | ||
3229 | filter_has_file = 0; | |
3230 | if (filter_child_proc) { | |
3231 | SvREFCNT_dec(filter_child_proc); | |
c445ea15 | 3232 | filter_child_proc = NULL; |
bbed91b5 KF |
3233 | } |
3234 | if (filter_state) { | |
3235 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3236 | filter_state = NULL; |
bbed91b5 KF |
3237 | } |
3238 | if (filter_sub) { | |
3239 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3240 | filter_sub = NULL; |
bbed91b5 KF |
3241 | } |
3242 | } | |
3243 | else { | |
be4b629d CN |
3244 | if (!path_is_absolute(name) |
3245 | #ifdef MACOS_TRADITIONAL | |
3246 | /* We consider paths of the form :a:b ambiguous and interpret them first | |
3247 | as global then as local | |
3248 | */ | |
3249 | || (*name == ':' && name[1] != ':' && strchr(name+2, ':')) | |
3250 | #endif | |
3251 | ) { | |
0510663f | 3252 | const char *dir = SvPVx_nolen_const(dirsv); |
bf4acbe4 | 3253 | #ifdef MACOS_TRADITIONAL |
67627c52 JH |
3254 | char buf1[256]; |
3255 | char buf2[256]; | |
3256 | ||
3257 | MacPerl_CanonDir(name, buf2, 1); | |
3258 | Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':')); | |
bf4acbe4 | 3259 | #else |
27da23d5 | 3260 | # ifdef VMS |
bbed91b5 | 3261 | char *unixdir; |
c445ea15 | 3262 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3263 | continue; |
3264 | sv_setpv(namesv, unixdir); | |
3265 | sv_catpv(namesv, unixname); | |
27da23d5 | 3266 | # else |
a0fd4948 | 3267 | # ifdef __SYMBIAN32__ |
27da23d5 JH |
3268 | if (PL_origfilename[0] && |
3269 | PL_origfilename[1] == ':' && | |
3270 | !(dir[0] && dir[1] == ':')) | |
3271 | Perl_sv_setpvf(aTHX_ namesv, | |
3272 | "%c:%s\\%s", | |
3273 | PL_origfilename[0], | |
3274 | dir, name); | |
3275 | else | |
3276 | Perl_sv_setpvf(aTHX_ namesv, | |
3277 | "%s\\%s", | |
3278 | dir, name); | |
3279 | # else | |
bbed91b5 | 3280 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); |
27da23d5 JH |
3281 | # endif |
3282 | # endif | |
bf4acbe4 | 3283 | #endif |
bbed91b5 | 3284 | TAINT_PROPER("require"); |
349d4f2f | 3285 | tryname = SvPVX_const(namesv); |
7925835c | 3286 | tryrsfp = doopen_pm(tryname, PERL_SCRIPT_MODE); |
bbed91b5 KF |
3287 | if (tryrsfp) { |
3288 | if (tryname[0] == '.' && tryname[1] == '/') | |
3289 | tryname += 2; | |
3290 | break; | |
3291 | } | |
be4b629d | 3292 | } |
46fc3d4c | 3293 | } |
a0d0e21e LW |
3294 | } |
3295 | } | |
3296 | } | |
f4dd75d9 | 3297 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3298 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3299 | SvREFCNT_dec(namesv); |
a0d0e21e | 3300 | if (!tryrsfp) { |
533c011a | 3301 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3302 | const char *msgstr = name; |
e31de809 | 3303 | if(errno == EMFILE) { |
b9b739dc NC |
3304 | SV * const msg |
3305 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3306 | Strerror(errno))); | |
349d4f2f | 3307 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3308 | } else { |
3309 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3310 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3311 | I32 i; |
b8f04b1b NC |
3312 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3313 | "%s in @INC%s%s (@INC contains:", | |
3314 | msgstr, | |
3315 | (instr(msgstr, ".h ") | |
3316 | ? " (change .h to .ph maybe?)" : ""), | |
3317 | (instr(msgstr, ".ph ") | |
3318 | ? " (did you run h2ph?)" : "") | |
3319 | )); | |
3320 | ||
e31de809 | 3321 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3322 | sv_catpvs(msg, " "); |
b8f04b1b | 3323 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3324 | } |
396482e1 | 3325 | sv_catpvs(msg, ")"); |
e31de809 SP |
3326 | msgstr = SvPV_nolen_const(msg); |
3327 | } | |
2683423c | 3328 | } |
ea071790 | 3329 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3330 | } |
3331 | ||
3332 | RETPUSHUNDEF; | |
3333 | } | |
d8bfb8bd | 3334 | else |
93189314 | 3335 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3336 | |
3337 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3338 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3339 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f AL |
3340 | if (!hook_sv) { |
3341 | (void)hv_store(GvHVn(PL_incgv), name, len, newSVpv(CopFILE(&PL_compiling),0),0); | |
3342 | } else { | |
3343 | SV** const svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3344 | if (!svp) | |
b37c2d43 | 3345 | (void)hv_store(GvHVn(PL_incgv), name, len, SvREFCNT_inc_simple(hook_sv), 0 ); |
d3a4e64e | 3346 | } |
a0d0e21e LW |
3347 | |
3348 | ENTER; | |
3349 | SAVETMPS; | |
396482e1 | 3350 | lex_start(sv_2mortal(newSVpvs(""))); |
b9d12d37 | 3351 | SAVEGENERICSV(PL_rsfp_filters); |
7d49f689 | 3352 | PL_rsfp_filters = NULL; |
e50aee73 | 3353 | |
3280af22 | 3354 | PL_rsfp = tryrsfp; |
b3ac6de7 | 3355 | SAVEHINTS(); |
3280af22 | 3356 | PL_hints = 0; |
7766f137 | 3357 | SAVESPTR(PL_compiling.cop_warnings); |
0453d815 | 3358 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3359 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3360 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3361 | PL_compiling.cop_warnings = pWARN_NONE ; |
317ea90d MS |
3362 | else if (PL_taint_warn) |
3363 | PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); | |
ac27b0f5 | 3364 | else |
d3a7d8c7 | 3365 | PL_compiling.cop_warnings = pWARN_STD ; |
ac27b0f5 | 3366 | SAVESPTR(PL_compiling.cop_io); |
c445ea15 | 3367 | PL_compiling.cop_io = NULL; |
a0d0e21e | 3368 | |
bbed91b5 | 3369 | if (filter_sub || filter_child_proc) { |
c445ea15 | 3370 | SV * const datasv = filter_add(S_run_user_filter, NULL); |
bbed91b5 KF |
3371 | IoLINES(datasv) = filter_has_file; |
3372 | IoFMT_GV(datasv) = (GV *)filter_child_proc; | |
3373 | IoTOP_GV(datasv) = (GV *)filter_state; | |
3374 | IoBOTTOM_GV(datasv) = (GV *)filter_sub; | |
3375 | } | |
3376 | ||
3377 | /* switch to eval mode */ | |
a0d0e21e | 3378 | PUSHBLOCK(cx, CXt_EVAL, SP); |
a0714e2c | 3379 | PUSHEVAL(cx, name, NULL); |
f39bc417 | 3380 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3381 | |
57843af0 GS |
3382 | SAVECOPLINE(&PL_compiling); |
3383 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3384 | |
3385 | PUTBACK; | |
6ec9efec JH |
3386 | |
3387 | /* Store and reset encoding. */ | |
3388 | encoding = PL_encoding; | |
c445ea15 | 3389 | PL_encoding = NULL; |
6ec9efec | 3390 | |
601f1833 | 3391 | op = DOCATCH(doeval(gimme, NULL, NULL, PL_curcop->cop_seq)); |
bfed75c6 | 3392 | |
6ec9efec JH |
3393 | /* Restore encoding. */ |
3394 | PL_encoding = encoding; | |
3395 | ||
3396 | return op; | |
a0d0e21e LW |
3397 | } |
3398 | ||
a0d0e21e LW |
3399 | PP(pp_entereval) |
3400 | { | |
27da23d5 | 3401 | dVAR; dSP; |
c09156bb | 3402 | register PERL_CONTEXT *cx; |
0d863452 | 3403 | SV *sv; |
890ce7af AL |
3404 | const I32 gimme = GIMME_V; |
3405 | const I32 was = PL_sub_generation; | |
83ee9e09 GS |
3406 | char tbuf[TYPE_DIGITS(long) + 12]; |
3407 | char *tmpbuf = tbuf; | |
fc36a67e | 3408 | char *safestr; |
a0d0e21e | 3409 | STRLEN len; |
55497cff | 3410 | OP *ret; |
a3985cdc | 3411 | CV* runcv; |
d819b83a | 3412 | U32 seq; |
c445ea15 | 3413 | HV *saved_hh = NULL; |
0d863452 RH |
3414 | |
3415 | if (PL_op->op_private & OPpEVAL_HAS_HH) { | |
3416 | saved_hh = (HV*) SvREFCNT_inc(POPs); | |
3417 | } | |
3418 | sv = POPs; | |
a0d0e21e | 3419 | |
f7997f86 | 3420 | if (!SvPV_nolen_const(sv)) |
a0d0e21e | 3421 | RETPUSHUNDEF; |
748a9306 | 3422 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3423 | |
3424 | ENTER; | |
a0d0e21e | 3425 | lex_start(sv); |
748a9306 | 3426 | SAVETMPS; |
ac27b0f5 | 3427 | |
a0d0e21e LW |
3428 | /* switch to eval mode */ |
3429 | ||
83ee9e09 | 3430 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3431 | SV * const temp_sv = sv_newmortal(); |
3432 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3433 | (unsigned long)++PL_evalseq, |
3434 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3435 | tmpbuf = SvPVX(temp_sv); |
3436 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3437 | } |
3438 | else | |
fc009855 | 3439 | len = my_sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3440 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3441 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3442 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3443 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3444 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3445 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3446 | (i.e. before run-time proper). To work around the coredump that | |
3447 | ensues, we always turn GvMULTI_on for any globals that were | |
3448 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3449 | safestr = savepvn(tmpbuf, len); |
3450 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3451 | SAVEHINTS(); |
533c011a | 3452 | PL_hints = PL_op->op_targ; |
0d863452 RH |
3453 | if (saved_hh) |
3454 | GvHV(PL_hintgv) = saved_hh; | |
7766f137 | 3455 | SAVESPTR(PL_compiling.cop_warnings); |
f0a6fc86 GS |
3456 | if (specialWARN(PL_curcop->cop_warnings)) |
3457 | PL_compiling.cop_warnings = PL_curcop->cop_warnings; | |
3458 | else { | |
3459 | PL_compiling.cop_warnings = newSVsv(PL_curcop->cop_warnings); | |
3460 | SAVEFREESV(PL_compiling.cop_warnings); | |
599cee73 | 3461 | } |
ac27b0f5 NIS |
3462 | SAVESPTR(PL_compiling.cop_io); |
3463 | if (specialCopIO(PL_curcop->cop_io)) | |
3464 | PL_compiling.cop_io = PL_curcop->cop_io; | |
3465 | else { | |
3466 | PL_compiling.cop_io = newSVsv(PL_curcop->cop_io); | |
3467 | SAVEFREESV(PL_compiling.cop_io); | |
3468 | } | |
d819b83a DM |
3469 | /* special case: an eval '' executed within the DB package gets lexically |
3470 | * placed in the first non-DB CV rather than the current CV - this | |
3471 | * allows the debugger to execute code, find lexicals etc, in the | |
3472 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3473 | * to do the dirty work for us */ | |
3474 | runcv = find_runcv(&seq); | |
a0d0e21e | 3475 | |
6b35e009 | 3476 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
a0714e2c | 3477 | PUSHEVAL(cx, 0, NULL); |
f39bc417 | 3478 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3479 | |
3480 | /* prepare to compile string */ | |
3481 | ||
3280af22 | 3482 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
cc49e20b | 3483 | save_lines(CopFILEAV(&PL_compiling), PL_linestr); |
a0d0e21e | 3484 | PUTBACK; |
d819b83a | 3485 | ret = doeval(gimme, NULL, runcv, seq); |
eb160463 | 3486 | if (PERLDB_INTER && was != (I32)PL_sub_generation /* Some subs defined here. */ |
533c011a | 3487 | && ret != PL_op->op_next) { /* Successive compilation. */ |
55497cff | 3488 | strcpy(safestr, "_<(eval )"); /* Anything fake and short. */ |
3489 | } | |
1e422769 | 3490 | return DOCATCH(ret); |
a0d0e21e LW |
3491 | } |
3492 | ||
3493 | PP(pp_leaveeval) | |
3494 | { | |
27da23d5 | 3495 | dVAR; dSP; |
a0d0e21e LW |
3496 | register SV **mark; |
3497 | SV **newsp; | |
3498 | PMOP *newpm; | |
3499 | I32 gimme; | |
c09156bb | 3500 | register PERL_CONTEXT *cx; |
a0d0e21e | 3501 | OP *retop; |
06b5626a | 3502 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3503 | I32 optype; |
3504 | ||
3505 | POPBLOCK(cx,newpm); | |
3506 | POPEVAL(cx); | |
f39bc417 | 3507 | retop = cx->blk_eval.retop; |
a0d0e21e | 3508 | |
a1f49e72 | 3509 | TAINT_NOT; |
54310121 | 3510 | if (gimme == G_VOID) |
3511 | MARK = newsp; | |
3512 | else if (gimme == G_SCALAR) { | |
3513 | MARK = newsp + 1; | |
3514 | if (MARK <= SP) { | |
3515 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3516 | *MARK = TOPs; | |
3517 | else | |
3518 | *MARK = sv_mortalcopy(TOPs); | |
3519 | } | |
a0d0e21e | 3520 | else { |
54310121 | 3521 | MEXTEND(mark,0); |
3280af22 | 3522 | *MARK = &PL_sv_undef; |
a0d0e21e | 3523 | } |
a7ec2b44 | 3524 | SP = MARK; |
a0d0e21e LW |
3525 | } |
3526 | else { | |
a1f49e72 CS |
3527 | /* in case LEAVE wipes old return values */ |
3528 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3529 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3530 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3531 | TAINT_NOT; /* Each item is independent */ |
3532 | } | |
3533 | } | |
a0d0e21e | 3534 | } |
3280af22 | 3535 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3536 | |
4fdae800 | 3537 | #ifdef DEBUGGING |
3280af22 | 3538 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3539 | #endif |
3280af22 | 3540 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3541 | lex_end(); |
4fdae800 | 3542 | |
1ce6579f | 3543 | if (optype == OP_REQUIRE && |
924508f0 | 3544 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3545 | { |
1ce6579f | 3546 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3547 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3548 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
35c1215d | 3549 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", nsv); |
f46d017c GS |
3550 | /* die_where() did LEAVE, or we won't be here */ |
3551 | } | |
3552 | else { | |
3553 | LEAVE; | |
3554 | if (!(save_flags & OPf_SPECIAL)) | |
c69006e4 | 3555 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 3556 | } |
a0d0e21e LW |
3557 | |
3558 | RETURNOP(retop); | |
3559 | } | |
3560 | ||
a0d0e21e LW |
3561 | PP(pp_entertry) |
3562 | { | |
27da23d5 | 3563 | dVAR; dSP; |
c09156bb | 3564 | register PERL_CONTEXT *cx; |
f54cb97a | 3565 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
3566 | |
3567 | ENTER; | |
3568 | SAVETMPS; | |
3569 | ||
1d76a5c3 | 3570 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), SP); |
a0d0e21e | 3571 | PUSHEVAL(cx, 0, 0); |
f39bc417 | 3572 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
a0d0e21e | 3573 | |
faef0170 | 3574 | PL_in_eval = EVAL_INEVAL; |
c69006e4 | 3575 | sv_setpvn(ERRSV,"",0); |
1e422769 | 3576 | PUTBACK; |
533c011a | 3577 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3578 | } |
3579 | ||
3580 | PP(pp_leavetry) | |
3581 | { | |
27da23d5 | 3582 | dVAR; dSP; |
a0d0e21e LW |
3583 | SV **newsp; |
3584 | PMOP *newpm; | |
3585 | I32 gimme; | |
c09156bb | 3586 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3587 | I32 optype; |
3588 | ||
3589 | POPBLOCK(cx,newpm); | |
3590 | POPEVAL(cx); | |
9d4ba2ae | 3591 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3592 | |
a1f49e72 | 3593 | TAINT_NOT; |
54310121 | 3594 | if (gimme == G_VOID) |
3595 | SP = newsp; | |
3596 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3597 | register SV **mark; |
54310121 | 3598 | MARK = newsp + 1; |
3599 | if (MARK <= SP) { | |
3600 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3601 | *MARK = TOPs; | |
3602 | else | |
3603 | *MARK = sv_mortalcopy(TOPs); | |
3604 | } | |
a0d0e21e | 3605 | else { |
54310121 | 3606 | MEXTEND(mark,0); |
3280af22 | 3607 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3608 | } |
3609 | SP = MARK; | |
3610 | } | |
3611 | else { | |
a1f49e72 | 3612 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3613 | register SV **mark; |
a1f49e72 CS |
3614 | for (mark = newsp + 1; mark <= SP; mark++) { |
3615 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3616 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3617 | TAINT_NOT; /* Each item is independent */ |
3618 | } | |
3619 | } | |
a0d0e21e | 3620 | } |
3280af22 | 3621 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3622 | |
3623 | LEAVE; | |
c69006e4 | 3624 | sv_setpvn(ERRSV,"",0); |
745cf2ff | 3625 | RETURN; |
a0d0e21e LW |
3626 | } |
3627 | ||
0d863452 RH |
3628 | PP(pp_entergiven) |
3629 | { | |
3630 | dVAR; dSP; | |
3631 | register PERL_CONTEXT *cx; | |
3632 | const I32 gimme = GIMME_V; | |
3633 | ||
3634 | ENTER; | |
3635 | SAVETMPS; | |
3636 | ||
3637 | if (PL_op->op_targ == 0) { | |
c445ea15 | 3638 | SV ** const defsv_p = &GvSV(PL_defgv); |
0d863452 RH |
3639 | *defsv_p = newSVsv(POPs); |
3640 | SAVECLEARSV(*defsv_p); | |
3641 | } | |
3642 | else | |
3643 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); | |
3644 | ||
3645 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3646 | PUSHGIVEN(cx); | |
3647 | ||
3648 | RETURN; | |
3649 | } | |
3650 | ||
3651 | PP(pp_leavegiven) | |
3652 | { | |
3653 | dVAR; dSP; | |
3654 | register PERL_CONTEXT *cx; | |
3655 | I32 gimme; | |
3656 | SV **newsp; | |
3657 | PMOP *newpm; | |
96a5add6 | 3658 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3659 | |
3660 | POPBLOCK(cx,newpm); | |
3661 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3662 | |
3663 | SP = newsp; | |
3664 | PUTBACK; | |
3665 | ||
3666 | PL_curpm = newpm; /* pop $1 et al */ | |
3667 | ||
3668 | LEAVE; | |
3669 | ||
3670 | return NORMAL; | |
3671 | } | |
3672 | ||
3673 | /* Helper routines used by pp_smartmatch */ | |
3674 | STATIC | |
3675 | PMOP * | |
3676 | S_make_matcher(pTHX_ regexp *re) | |
3677 | { | |
97aff369 | 3678 | dVAR; |
0d863452 RH |
3679 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
3680 | PM_SETRE(matcher, ReREFCNT_inc(re)); | |
3681 | ||
3682 | SAVEFREEOP((OP *) matcher); | |
3683 | ENTER; SAVETMPS; | |
3684 | SAVEOP(); | |
3685 | return matcher; | |
3686 | } | |
3687 | ||
3688 | STATIC | |
3689 | bool | |
3690 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) | |
3691 | { | |
97aff369 | 3692 | dVAR; |
0d863452 RH |
3693 | dSP; |
3694 | ||
3695 | PL_op = (OP *) matcher; | |
3696 | XPUSHs(sv); | |
3697 | PUTBACK; | |
3698 | (void) pp_match(); | |
3699 | SPAGAIN; | |
3700 | return (SvTRUEx(POPs)); | |
3701 | } | |
3702 | ||
3703 | STATIC | |
3704 | void | |
3705 | S_destroy_matcher(pTHX_ PMOP *matcher) | |
3706 | { | |
97aff369 | 3707 | dVAR; |
0d863452 RH |
3708 | PERL_UNUSED_ARG(matcher); |
3709 | FREETMPS; | |
3710 | LEAVE; | |
3711 | } | |
3712 | ||
3713 | /* Do a smart match */ | |
3714 | PP(pp_smartmatch) | |
3715 | { | |
a0714e2c | 3716 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
3717 | } |
3718 | ||
3719 | /* This version of do_smartmatch() implements the following | |
3720 | table of smart matches: | |
3721 | ||
3722 | $a $b Type of Match Implied Matching Code | |
3723 | ====== ===== ===================== ============= | |
3724 | (overloading trumps everything) | |
3725 | ||
3726 | Code[+] Code[+] referential equality match if refaddr($a) == refaddr($b) | |
3727 | Any Code[+] scalar sub truth match if $b->($a) | |
3728 | ||
3729 | Hash Hash hash keys identical match if sort(keys(%$a)) ÈeqÇ sort(keys(%$b)) | |
3730 | Hash Array hash value slice truth match if $a->{any(@$b)} | |
3731 | Hash Regex hash key grep match if any(keys(%$a)) =~ /$b/ | |
3732 | Hash Any hash entry existence match if exists $a->{$b} | |
3733 | ||
3734 | Array Array arrays are identical[*] match if $a È~~Ç $b | |
3735 | Array Regex array grep match if any(@$a) =~ /$b/ | |
3736 | Array Num array contains number match if any($a) == $b | |
3737 | Array Any array contains string match if any($a) eq $b | |
3738 | ||
3739 | Any undef undefined match if !defined $a | |
3740 | Any Regex pattern match match if $a =~ /$b/ | |
3741 | Code() Code() results are equal match if $a->() eq $b->() | |
3742 | Any Code() simple closure truth match if $b->() (ignoring $a) | |
3743 | Num numish[!] numeric equality match if $a == $b | |
3744 | Any Str string equality match if $a eq $b | |
3745 | Any Num numeric equality match if $a == $b | |
3746 | ||
3747 | Any Any string equality match if $a eq $b | |
3748 | ||
3749 | ||
3750 | + - this must be a code reference whose prototype (if present) is not "" | |
3751 | (subs with a "" prototype are dealt with by the 'Code()' entry lower down) | |
3752 | * - if a circular reference is found, we fall back to referential equality | |
3753 | ! - either a real number, or a string that looks_like_number() | |
3754 | ||
3755 | */ | |
3756 | STATIC | |
3757 | OP * | |
3758 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) | |
3759 | { | |
97aff369 | 3760 | dVAR; |
0d863452 RH |
3761 | dSP; |
3762 | ||
3763 | SV *e = TOPs; /* e is for 'expression' */ | |
3764 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
3765 | SV *this, *other; | |
3766 | MAGIC *mg; | |
3767 | regexp *this_regex, *other_regex; | |
3768 | ||
3769 | # define NOT_EMPTY_PROTO(cv) (!SvPOK(cv) || SvCUR(cv) == 0) | |
3770 | ||
3771 | # define SM_REF(type) ( \ | |
3772 | (SvROK(d) && (SvTYPE(this = SvRV(d)) == SVt_##type) && (other = e)) \ | |
3773 | || (SvROK(e) && (SvTYPE(this = SvRV(e)) == SVt_##type) && (other = d))) | |
3774 | ||
3775 | # define SM_CV_NEP /* Find a code ref without an empty prototype */ \ | |
3776 | ((SvROK(d) && (SvTYPE(this = SvRV(d)) == SVt_PVCV) \ | |
3777 | && NOT_EMPTY_PROTO(this) && (other = e)) \ | |
3778 | || (SvROK(e) && (SvTYPE(this = SvRV(e)) == SVt_PVCV) \ | |
3779 | && NOT_EMPTY_PROTO(this) && (other = d))) | |
3780 | ||
3781 | # define SM_REGEX ( \ | |
3782 | (SvROK(d) && SvMAGICAL(this = SvRV(d)) \ | |
3783 | && (mg = mg_find(this, PERL_MAGIC_qr)) \ | |
3784 | && (this_regex = (regexp *)mg->mg_obj) \ | |
3785 | && (other = e)) \ | |
3786 | || \ | |
3787 | (SvROK(e) && SvMAGICAL(this = SvRV(e)) \ | |
3788 | && (mg = mg_find(this, PERL_MAGIC_qr)) \ | |
3789 | && (this_regex = (regexp *)mg->mg_obj) \ | |
3790 | && (other = d)) ) | |
3791 | ||
3792 | ||
3793 | # define SM_OTHER_REF(type) \ | |
3794 | (SvROK(other) && SvTYPE(SvRV(other)) == SVt_##type) | |
3795 | ||
3796 | # define SM_OTHER_REGEX (SvROK(other) && SvMAGICAL(SvRV(other)) \ | |
3797 | && (mg = mg_find(SvRV(other), PERL_MAGIC_qr)) \ | |
3798 | && (other_regex = (regexp *)mg->mg_obj)) | |
3799 | ||
3800 | ||
3801 | # define SM_SEEN_THIS(sv) hv_exists_ent(seen_this, \ | |
98f4023c | 3802 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3803 | |
3804 | # define SM_SEEN_OTHER(sv) hv_exists_ent(seen_other, \ | |
98f4023c | 3805 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3806 | |
3807 | tryAMAGICbinSET(smart, 0); | |
3808 | ||
3809 | SP -= 2; /* Pop the values */ | |
3810 | ||
3811 | /* Take care only to invoke mg_get() once for each argument. | |
3812 | * Currently we do this by copying the SV if it's magical. */ | |
3813 | if (d) { | |
3814 | if (SvGMAGICAL(d)) | |
3815 | d = sv_mortalcopy(d); | |
3816 | } | |
3817 | else | |
3818 | d = &PL_sv_undef; | |
3819 | ||
3820 | assert(e); | |
3821 | if (SvGMAGICAL(e)) | |
3822 | e = sv_mortalcopy(e); | |
3823 | ||
3824 | if (SM_CV_NEP) { | |
3825 | I32 c; | |
3826 | ||
3827 | if ( SM_OTHER_REF(PVCV) && NOT_EMPTY_PROTO(SvRV(other)) ) | |
3828 | { | |
3829 | if (this == SvRV(other)) | |
3830 | RETPUSHYES; | |
3831 | else | |
3832 | RETPUSHNO; | |
3833 | } | |
3834 | ||
3835 | ENTER; | |
3836 | SAVETMPS; | |
3837 | PUSHMARK(SP); | |
3838 | PUSHs(other); | |
3839 | PUTBACK; | |
3840 | c = call_sv(this, G_SCALAR); | |
3841 | SPAGAIN; | |
3842 | if (c == 0) | |
3843 | PUSHs(&PL_sv_no); | |
3844 | else if (SvTEMP(TOPs)) | |
3845 | SvREFCNT_inc(TOPs); | |
3846 | FREETMPS; | |
3847 | LEAVE; | |
3848 | RETURN; | |
3849 | } | |
3850 | else if (SM_REF(PVHV)) { | |
3851 | if (SM_OTHER_REF(PVHV)) { | |
3852 | /* Check that the key-sets are identical */ | |
3853 | HE *he; | |
3854 | HV *other_hv = (HV *) SvRV(other); | |
3855 | bool tied = FALSE; | |
3856 | bool other_tied = FALSE; | |
3857 | U32 this_key_count = 0, | |
3858 | other_key_count = 0; | |
3859 | ||
3860 | /* Tied hashes don't know how many keys they have. */ | |
3861 | if (SvTIED_mg(this, PERL_MAGIC_tied)) { | |
3862 | tied = TRUE; | |
3863 | } | |
3864 | else if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) { | |
c445ea15 | 3865 | HV * const temp = other_hv; |
0d863452 RH |
3866 | other_hv = (HV *) this; |
3867 | this = (SV *) temp; | |
3868 | tied = TRUE; | |
3869 | } | |
3870 | if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) | |
3871 | other_tied = TRUE; | |
3872 | ||
3873 | if (!tied && HvUSEDKEYS((HV *) this) != HvUSEDKEYS(other_hv)) | |
3874 | RETPUSHNO; | |
3875 | ||
3876 | /* The hashes have the same number of keys, so it suffices | |
3877 | to check that one is a subset of the other. */ | |
3878 | (void) hv_iterinit((HV *) this); | |
3879 | while ( (he = hv_iternext((HV *) this)) ) { | |
3880 | I32 key_len; | |
c445ea15 | 3881 | char * const key = hv_iterkey(he, &key_len); |
0d863452 RH |
3882 | |
3883 | ++ this_key_count; | |
3884 | ||
3885 | if(!hv_exists(other_hv, key, key_len)) { | |
3886 | (void) hv_iterinit((HV *) this); /* reset iterator */ | |
3887 | RETPUSHNO; | |
3888 | } | |
3889 | } | |
3890 | ||
3891 | if (other_tied) { | |
3892 | (void) hv_iterinit(other_hv); | |
3893 | while ( hv_iternext(other_hv) ) | |
3894 | ++other_key_count; | |
3895 | } | |
3896 | else | |
3897 | other_key_count = HvUSEDKEYS(other_hv); | |
3898 | ||
3899 | if (this_key_count != other_key_count) | |
3900 | RETPUSHNO; | |
3901 | else | |
3902 | RETPUSHYES; | |
3903 | } | |
3904 | else if (SM_OTHER_REF(PVAV)) { | |
c445ea15 AL |
3905 | AV * const other_av = (AV *) SvRV(other); |
3906 | const I32 other_len = av_len(other_av) + 1; | |
0d863452 RH |
3907 | I32 i; |
3908 | ||
3909 | if (HvUSEDKEYS((HV *) this) != other_len) | |
3910 | RETPUSHNO; | |
3911 | ||
3912 | for(i = 0; i < other_len; ++i) { | |
c445ea15 | 3913 | SV ** const svp = av_fetch(other_av, i, FALSE); |
0d863452 RH |
3914 | char *key; |
3915 | STRLEN key_len; | |
3916 | ||
3917 | if (!svp) /* ??? When can this happen? */ | |
3918 | RETPUSHNO; | |
3919 | ||
3920 | key = SvPV(*svp, key_len); | |
3921 | if(!hv_exists((HV *) this, key, key_len)) | |
3922 | RETPUSHNO; | |
3923 | } | |
3924 | RETPUSHYES; | |
3925 | } | |
3926 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 3927 | PMOP * const matcher = make_matcher(other_regex); |
0d863452 RH |
3928 | HE *he; |
3929 | ||
3930 | (void) hv_iterinit((HV *) this); | |
3931 | while ( (he = hv_iternext((HV *) this)) ) { | |
3932 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { | |
3933 | (void) hv_iterinit((HV *) this); | |
3934 | destroy_matcher(matcher); | |
3935 | RETPUSHYES; | |
3936 | } | |
3937 | } | |
3938 | destroy_matcher(matcher); | |
3939 | RETPUSHNO; | |
3940 | } | |
3941 | else { | |
3942 | if (hv_exists_ent((HV *) this, other, 0)) | |
3943 | RETPUSHYES; | |
3944 | else | |
3945 | RETPUSHNO; | |
3946 | } | |
3947 | } | |
3948 | else if (SM_REF(PVAV)) { | |
3949 | if (SM_OTHER_REF(PVAV)) { | |
3950 | AV *other_av = (AV *) SvRV(other); | |
3951 | if (av_len((AV *) this) != av_len(other_av)) | |
3952 | RETPUSHNO; | |
3953 | else { | |
3954 | I32 i; | |
c445ea15 | 3955 | const I32 other_len = av_len(other_av); |
0d863452 | 3956 | |
a0714e2c | 3957 | if (NULL == seen_this) { |
0d863452 RH |
3958 | seen_this = newHV(); |
3959 | (void) sv_2mortal((SV *) seen_this); | |
3960 | } | |
a0714e2c | 3961 | if (NULL == seen_other) { |
0d863452 RH |
3962 | seen_this = newHV(); |
3963 | (void) sv_2mortal((SV *) seen_other); | |
3964 | } | |
3965 | for(i = 0; i <= other_len; ++i) { | |
c445ea15 AL |
3966 | SV * const * const this_elem = av_fetch((AV *)this, i, FALSE); |
3967 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); | |
3968 | ||
0d863452 RH |
3969 | if (!this_elem || !other_elem) { |
3970 | if (this_elem || other_elem) | |
3971 | RETPUSHNO; | |
3972 | } | |
3973 | else if (SM_SEEN_THIS(*this_elem) | |
3974 | || SM_SEEN_OTHER(*other_elem)) | |
3975 | { | |
3976 | if (*this_elem != *other_elem) | |
3977 | RETPUSHNO; | |
3978 | } | |
3979 | else { | |
3980 | hv_store_ent(seen_this, | |
98f4023c | 3981 | sv_2mortal(newSViv(PTR2IV(*this_elem))), |
0d863452 RH |
3982 | &PL_sv_undef, 0); |
3983 | hv_store_ent(seen_other, | |
98f4023c | 3984 | sv_2mortal(newSViv(PTR2IV(*other_elem))), |
0d863452 RH |
3985 | &PL_sv_undef, 0); |
3986 | PUSHs(*this_elem); | |
3987 | PUSHs(*other_elem); | |
3988 | ||
3989 | PUTBACK; | |
3990 | (void) do_smartmatch(seen_this, seen_other); | |
3991 | SPAGAIN; | |
3992 | ||
3993 | if (!SvTRUEx(POPs)) | |
3994 | RETPUSHNO; | |
3995 | } | |
3996 | } | |
3997 | RETPUSHYES; | |
3998 | } | |
3999 | } | |
4000 | else if (SM_OTHER_REGEX) { | |
c445ea15 AL |
4001 | PMOP * const matcher = make_matcher(other_regex); |
4002 | const I32 this_len = av_len((AV *) this); | |
0d863452 | 4003 | I32 i; |
0d863452 RH |
4004 | |
4005 | for(i = 0; i <= this_len; ++i) { | |
c445ea15 | 4006 | SV * const * const svp = av_fetch((AV *)this, i, FALSE); |
0d863452 RH |
4007 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4008 | destroy_matcher(matcher); | |
4009 | RETPUSHYES; | |
4010 | } | |
4011 | } | |
4012 | destroy_matcher(matcher); | |
4013 | RETPUSHNO; | |
4014 | } | |
4015 | else if (SvIOK(other) || SvNOK(other)) { | |
4016 | I32 i; | |
4017 | ||
4018 | for(i = 0; i <= AvFILL((AV *) this); ++i) { | |
c445ea15 | 4019 | SV * const * const svp = av_fetch((AV *)this, i, FALSE); |
0d863452 RH |
4020 | if (!svp) |
4021 | continue; | |
4022 | ||
4023 | PUSHs(other); | |
4024 | PUSHs(*svp); | |
4025 | PUTBACK; | |
4026 | if ((PL_curcop->op_private & HINT_INTEGER) == HINT_INTEGER) | |
4027 | (void) pp_i_eq(); | |
4028 | else | |
4029 | (void) pp_eq(); | |
4030 | SPAGAIN; | |
4031 | if (SvTRUEx(POPs)) | |
4032 | RETPUSHYES; | |
4033 | } | |
4034 | RETPUSHNO; | |
4035 | } | |
4036 | else if (SvPOK(other)) { | |
c445ea15 | 4037 | const I32 this_len = av_len((AV *) this); |
0d863452 | 4038 | I32 i; |
0d863452 RH |
4039 | |
4040 | for(i = 0; i <= this_len; ++i) { | |
c445ea15 | 4041 | SV * const * const svp = av_fetch((AV *)this, i, FALSE); |
0d863452 RH |
4042 | if (!svp) |
4043 | continue; | |
4044 | ||
4045 | PUSHs(other); | |
4046 | PUSHs(*svp); | |
4047 | PUTBACK; | |
4048 | (void) pp_seq(); | |
4049 | SPAGAIN; | |
4050 | if (SvTRUEx(POPs)) | |
4051 | RETPUSHYES; | |
4052 | } | |
4053 | RETPUSHNO; | |
4054 | } | |
4055 | } | |
4056 | else if (!SvOK(d) || !SvOK(e)) { | |
4057 | if (!SvOK(d) && !SvOK(e)) | |
4058 | RETPUSHYES; | |
4059 | else | |
4060 | RETPUSHNO; | |
4061 | } | |
4062 | else if (SM_REGEX) { | |
c445ea15 | 4063 | PMOP * const matcher = make_matcher(this_regex); |
0d863452 RH |
4064 | |
4065 | PUTBACK; | |
4066 | PUSHs(matcher_matches_sv(matcher, other) | |
4067 | ? &PL_sv_yes | |
4068 | : &PL_sv_no); | |
4069 | destroy_matcher(matcher); | |
4070 | RETURN; | |
4071 | } | |
4072 | else if (SM_REF(PVCV)) { | |
4073 | I32 c; | |
4074 | /* This must be a null-prototyped sub, because we | |
4075 | already checked for the other kind. */ | |
4076 | ||
4077 | ENTER; | |
4078 | SAVETMPS; | |
4079 | PUSHMARK(SP); | |
4080 | PUTBACK; | |
4081 | c = call_sv(this, G_SCALAR); | |
4082 | SPAGAIN; | |
4083 | if (c == 0) | |
4084 | PUSHs(&PL_sv_undef); | |
4085 | else if (SvTEMP(TOPs)) | |
4086 | SvREFCNT_inc(TOPs); | |
4087 | ||
4088 | if (SM_OTHER_REF(PVCV)) { | |
4089 | /* This one has to be null-proto'd too. | |
4090 | Call both of 'em, and compare the results */ | |
4091 | PUSHMARK(SP); | |
4092 | c = call_sv(SvRV(other), G_SCALAR); | |
4093 | SPAGAIN; | |
4094 | if (c == 0) | |
4095 | PUSHs(&PL_sv_undef); | |
4096 | else if (SvTEMP(TOPs)) | |
4097 | SvREFCNT_inc(TOPs); | |
4098 | FREETMPS; | |
4099 | LEAVE; | |
4100 | PUTBACK; | |
4101 | return pp_eq(); | |
4102 | } | |
4103 | ||
4104 | FREETMPS; | |
4105 | LEAVE; | |
4106 | RETURN; | |
4107 | } | |
4108 | else if ( ((SvIOK(d) || SvNOK(d)) && (this = d) && (other = e)) | |
4109 | || ((SvIOK(e) || SvNOK(e)) && (this = e) && (other = d)) ) | |
4110 | { | |
4111 | if (SvPOK(other) && !looks_like_number(other)) { | |
4112 | /* String comparison */ | |
4113 | PUSHs(d); PUSHs(e); | |
4114 | PUTBACK; | |
4115 | return pp_seq(); | |
4116 | } | |
4117 | /* Otherwise, numeric comparison */ | |
4118 | PUSHs(d); PUSHs(e); | |
4119 | PUTBACK; | |
4120 | if ((PL_curcop->op_private & HINT_INTEGER) == HINT_INTEGER) | |
4121 | (void) pp_i_eq(); | |
4122 | else | |
4123 | (void) pp_eq(); | |
4124 | SPAGAIN; | |
4125 | if (SvTRUEx(POPs)) | |
4126 | RETPUSHYES; | |
4127 | else | |
4128 | RETPUSHNO; | |
4129 | } | |
4130 | ||
4131 | /* As a last resort, use string comparison */ | |
4132 | PUSHs(d); PUSHs(e); | |
4133 | PUTBACK; | |
4134 | return pp_seq(); | |
4135 | } | |
4136 | ||
4137 | PP(pp_enterwhen) | |
4138 | { | |
4139 | dVAR; dSP; | |
4140 | register PERL_CONTEXT *cx; | |
4141 | const I32 gimme = GIMME_V; | |
4142 | ||
4143 | /* This is essentially an optimization: if the match | |
4144 | fails, we don't want to push a context and then | |
4145 | pop it again right away, so we skip straight | |
4146 | to the op that follows the leavewhen. | |
4147 | */ | |
4148 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4149 | return cLOGOP->op_other->op_next; | |
4150 | ||
4151 | ENTER; | |
4152 | SAVETMPS; | |
4153 | ||
4154 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4155 | PUSHWHEN(cx); | |
4156 | ||
4157 | RETURN; | |
4158 | } | |
4159 | ||
4160 | PP(pp_leavewhen) | |
4161 | { | |
4162 | dVAR; dSP; | |
4163 | register PERL_CONTEXT *cx; | |
4164 | I32 gimme; | |
4165 | SV **newsp; | |
4166 | PMOP *newpm; | |
4167 | ||
4168 | POPBLOCK(cx,newpm); | |
4169 | assert(CxTYPE(cx) == CXt_WHEN); | |
4170 | ||
4171 | SP = newsp; | |
4172 | PUTBACK; | |
4173 | ||
4174 | PL_curpm = newpm; /* pop $1 et al */ | |
4175 | ||
4176 | LEAVE; | |
4177 | return NORMAL; | |
4178 | } | |
4179 | ||
4180 | PP(pp_continue) | |
4181 | { | |
4182 | dVAR; | |
4183 | I32 cxix; | |
4184 | register PERL_CONTEXT *cx; | |
4185 | I32 inner; | |
4186 | ||
4187 | cxix = dopoptowhen(cxstack_ix); | |
4188 | if (cxix < 0) | |
4189 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4190 | if (cxix < cxstack_ix) | |
4191 | dounwind(cxix); | |
4192 | ||
4193 | /* clear off anything above the scope we're re-entering */ | |
4194 | inner = PL_scopestack_ix; | |
4195 | TOPBLOCK(cx); | |
4196 | if (PL_scopestack_ix < inner) | |
4197 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4198 | PL_curcop = cx->blk_oldcop; | |
4199 | return cx->blk_givwhen.leave_op; | |
4200 | } | |
4201 | ||
4202 | PP(pp_break) | |
4203 | { | |
4204 | dVAR; | |
4205 | I32 cxix; | |
4206 | register PERL_CONTEXT *cx; | |
4207 | I32 inner; | |
4208 | ||
4209 | cxix = dopoptogiven(cxstack_ix); | |
4210 | if (cxix < 0) { | |
4211 | if (PL_op->op_flags & OPf_SPECIAL) | |
4212 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4213 | else | |
4214 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4215 | } | |
4216 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4217 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4218 | ||
4219 | if (cxix < cxstack_ix) | |
4220 | dounwind(cxix); | |
4221 | ||
4222 | /* clear off anything above the scope we're re-entering */ | |
4223 | inner = PL_scopestack_ix; | |
4224 | TOPBLOCK(cx); | |
4225 | if (PL_scopestack_ix < inner) | |
4226 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4227 | PL_curcop = cx->blk_oldcop; | |
4228 | ||
4229 | if (CxFOREACH(cx)) | |
4230 | return cx->blk_loop.next_op; | |
4231 | else | |
4232 | return cx->blk_givwhen.leave_op; | |
4233 | } | |
4234 | ||
a1b95068 | 4235 | STATIC OP * |
cea2e8a9 | 4236 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4237 | { |
4238 | STRLEN len; | |
4239 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4240 | register char * const send = s + len; |
4241 | register char *base = NULL; | |
a0d0e21e | 4242 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4243 | bool noblank = FALSE; |
4244 | bool repeat = FALSE; | |
a0d0e21e | 4245 | bool postspace = FALSE; |
dea28490 JJ |
4246 | U32 *fops; |
4247 | register U32 *fpc; | |
cbbf8932 | 4248 | U32 *linepc = NULL; |
a0d0e21e LW |
4249 | register I32 arg; |
4250 | bool ischop; | |
a1b95068 WL |
4251 | bool unchopnum = FALSE; |
4252 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4253 | |
55497cff | 4254 | if (len == 0) |
cea2e8a9 | 4255 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4256 | |
815f25c6 DM |
4257 | /* estimate the buffer size needed */ |
4258 | for (base = s; s <= send; s++) { | |
a1b95068 | 4259 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4260 | maxops += 10; |
4261 | } | |
4262 | s = base; | |
c445ea15 | 4263 | base = NULL; |
815f25c6 | 4264 | |
a02a5408 | 4265 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4266 | fpc = fops; |
4267 | ||
4268 | if (s < send) { | |
4269 | linepc = fpc; | |
4270 | *fpc++ = FF_LINEMARK; | |
4271 | noblank = repeat = FALSE; | |
4272 | base = s; | |
4273 | } | |
4274 | ||
4275 | while (s <= send) { | |
4276 | switch (*s++) { | |
4277 | default: | |
4278 | skipspaces = 0; | |
4279 | continue; | |
4280 | ||
4281 | case '~': | |
4282 | if (*s == '~') { | |
4283 | repeat = TRUE; | |
4284 | *s = ' '; | |
4285 | } | |
4286 | noblank = TRUE; | |
4287 | s[-1] = ' '; | |
4288 | /* FALL THROUGH */ | |
4289 | case ' ': case '\t': | |
4290 | skipspaces++; | |
4291 | continue; | |
a1b95068 WL |
4292 | case 0: |
4293 | if (s < send) { | |
4294 | skipspaces = 0; | |
4295 | continue; | |
4296 | } /* else FALL THROUGH */ | |
4297 | case '\n': | |
a0d0e21e LW |
4298 | arg = s - base; |
4299 | skipspaces++; | |
4300 | arg -= skipspaces; | |
4301 | if (arg) { | |
5f05dabc | 4302 | if (postspace) |
a0d0e21e | 4303 | *fpc++ = FF_SPACE; |
a0d0e21e | 4304 | *fpc++ = FF_LITERAL; |
eb160463 | 4305 | *fpc++ = (U16)arg; |
a0d0e21e | 4306 | } |
5f05dabc | 4307 | postspace = FALSE; |
a0d0e21e LW |
4308 | if (s <= send) |
4309 | skipspaces--; | |
4310 | if (skipspaces) { | |
4311 | *fpc++ = FF_SKIP; | |
eb160463 | 4312 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4313 | } |
4314 | skipspaces = 0; | |
4315 | if (s <= send) | |
4316 | *fpc++ = FF_NEWLINE; | |
4317 | if (noblank) { | |
4318 | *fpc++ = FF_BLANK; | |
4319 | if (repeat) | |
4320 | arg = fpc - linepc + 1; | |
4321 | else | |
4322 | arg = 0; | |
eb160463 | 4323 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4324 | } |
4325 | if (s < send) { | |
4326 | linepc = fpc; | |
4327 | *fpc++ = FF_LINEMARK; | |
4328 | noblank = repeat = FALSE; | |
4329 | base = s; | |
4330 | } | |
4331 | else | |
4332 | s++; | |
4333 | continue; | |
4334 | ||
4335 | case '@': | |
4336 | case '^': | |
4337 | ischop = s[-1] == '^'; | |
4338 | ||
4339 | if (postspace) { | |
4340 | *fpc++ = FF_SPACE; | |
4341 | postspace = FALSE; | |
4342 | } | |
4343 | arg = (s - base) - 1; | |
4344 | if (arg) { | |
4345 | *fpc++ = FF_LITERAL; | |
eb160463 | 4346 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4347 | } |
4348 | ||
4349 | base = s - 1; | |
4350 | *fpc++ = FF_FETCH; | |
4351 | if (*s == '*') { | |
4352 | s++; | |
a1b95068 WL |
4353 | *fpc++ = 2; /* skip the @* or ^* */ |
4354 | if (ischop) { | |
4355 | *fpc++ = FF_LINESNGL; | |
4356 | *fpc++ = FF_CHOP; | |
4357 | } else | |
4358 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4359 | } |
4360 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4361 | arg = ischop ? 512 : 0; | |
4362 | base = s - 1; | |
4363 | while (*s == '#') | |
4364 | s++; | |
4365 | if (*s == '.') { | |
06b5626a | 4366 | const char * const f = ++s; |
a0d0e21e LW |
4367 | while (*s == '#') |
4368 | s++; | |
4369 | arg |= 256 + (s - f); | |
4370 | } | |
4371 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4372 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4373 | *fpc++ = (U16)arg; |
a1b95068 | 4374 | unchopnum |= ! ischop; |
784707d5 JP |
4375 | } |
4376 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4377 | arg = ischop ? 512 : 0; | |
4378 | base = s - 1; | |
4379 | s++; /* skip the '0' first */ | |
4380 | while (*s == '#') | |
4381 | s++; | |
4382 | if (*s == '.') { | |
06b5626a | 4383 | const char * const f = ++s; |
784707d5 JP |
4384 | while (*s == '#') |
4385 | s++; | |
4386 | arg |= 256 + (s - f); | |
4387 | } | |
4388 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4389 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4390 | *fpc++ = (U16)arg; |
a1b95068 | 4391 | unchopnum |= ! ischop; |
a0d0e21e LW |
4392 | } |
4393 | else { | |
4394 | I32 prespace = 0; | |
4395 | bool ismore = FALSE; | |
4396 | ||
4397 | if (*s == '>') { | |
4398 | while (*++s == '>') ; | |
4399 | prespace = FF_SPACE; | |
4400 | } | |
4401 | else if (*s == '|') { | |
4402 | while (*++s == '|') ; | |
4403 | prespace = FF_HALFSPACE; | |
4404 | postspace = TRUE; | |
4405 | } | |
4406 | else { | |
4407 | if (*s == '<') | |
4408 | while (*++s == '<') ; | |
4409 | postspace = TRUE; | |
4410 | } | |
4411 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4412 | s += 3; | |
4413 | ismore = TRUE; | |
4414 | } | |
4415 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4416 | ||
4417 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4418 | ||
4419 | if (prespace) | |
eb160463 | 4420 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4421 | *fpc++ = FF_ITEM; |
4422 | if (ismore) | |
4423 | *fpc++ = FF_MORE; | |
4424 | if (ischop) | |
4425 | *fpc++ = FF_CHOP; | |
4426 | } | |
4427 | base = s; | |
4428 | skipspaces = 0; | |
4429 | continue; | |
4430 | } | |
4431 | } | |
4432 | *fpc++ = FF_END; | |
4433 | ||
815f25c6 | 4434 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4435 | arg = fpc - fops; |
4436 | { /* need to jump to the next word */ | |
4437 | int z; | |
4438 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4439 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4440 | s = SvPVX(sv) + SvCUR(sv) + z; |
4441 | } | |
dea28490 | 4442 | Copy(fops, s, arg, U32); |
a0d0e21e | 4443 | Safefree(fops); |
c445ea15 | 4444 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4445 | SvCOMPILED_on(sv); |
a1b95068 | 4446 | |
bfed75c6 | 4447 | if (unchopnum && repeat) |
a1b95068 WL |
4448 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4449 | return 0; | |
4450 | } | |
4451 | ||
4452 | ||
4453 | STATIC bool | |
4454 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4455 | { | |
4456 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4457 | NV pwr = 1; | |
4458 | NV eps = 0.5; | |
4459 | bool res = FALSE; | |
4460 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4461 | ||
4462 | if (frcsize & 256) | |
4463 | intsize--; | |
4464 | frcsize &= 255; | |
4465 | intsize -= frcsize; | |
4466 | ||
4467 | while (intsize--) pwr *= 10.0; | |
4468 | while (frcsize--) eps /= 10.0; | |
4469 | ||
4470 | if( value >= 0 ){ | |
4471 | if (value + eps >= pwr) | |
4472 | res = TRUE; | |
4473 | } else { | |
4474 | if (value - eps <= -pwr) | |
4475 | res = TRUE; | |
4476 | } | |
4477 | return res; | |
a0d0e21e | 4478 | } |
4e35701f | 4479 | |
bbed91b5 | 4480 | static I32 |
0bd48802 | 4481 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4482 | { |
27da23d5 | 4483 | dVAR; |
0bd48802 | 4484 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4485 | const int filter_has_file = IoLINES(datasv); |
0bd48802 AL |
4486 | GV * const filter_child_proc = (GV *)IoFMT_GV(datasv); |
4487 | SV * const filter_state = (SV *)IoTOP_GV(datasv); | |
4488 | SV * const filter_sub = (SV *)IoBOTTOM_GV(datasv); | |
bbed91b5 KF |
4489 | int len = 0; |
4490 | ||
4491 | /* I was having segfault trouble under Linux 2.2.5 after a | |
4492 | parse error occured. (Had to hack around it with a test | |
4493 | for PL_error_count == 0.) Solaris doesn't segfault -- | |
4494 | not sure where the trouble is yet. XXX */ | |
4495 | ||
4496 | if (filter_has_file) { | |
4497 | len = FILTER_READ(idx+1, buf_sv, maxlen); | |
4498 | } | |
4499 | ||
4500 | if (filter_sub && len >= 0) { | |
39644a26 | 4501 | dSP; |
bbed91b5 KF |
4502 | int count; |
4503 | ||
4504 | ENTER; | |
4505 | SAVE_DEFSV; | |
4506 | SAVETMPS; | |
4507 | EXTEND(SP, 2); | |
4508 | ||
4509 | DEFSV = buf_sv; | |
4510 | PUSHMARK(SP); | |
4511 | PUSHs(sv_2mortal(newSViv(maxlen))); | |
4512 | if (filter_state) { | |
4513 | PUSHs(filter_state); | |
4514 | } | |
4515 | PUTBACK; | |
4516 | count = call_sv(filter_sub, G_SCALAR); | |
4517 | SPAGAIN; | |
4518 | ||
4519 | if (count > 0) { | |
4520 | SV *out = POPs; | |
4521 | if (SvOK(out)) { | |
4522 | len = SvIV(out); | |
4523 | } | |
4524 | } | |
4525 | ||
4526 | PUTBACK; | |
4527 | FREETMPS; | |
4528 | LEAVE; | |
4529 | } | |
4530 | ||
4531 | if (len <= 0) { | |
4532 | IoLINES(datasv) = 0; | |
4533 | if (filter_child_proc) { | |
4534 | SvREFCNT_dec(filter_child_proc); | |
a0714e2c | 4535 | IoFMT_GV(datasv) = NULL; |
bbed91b5 KF |
4536 | } |
4537 | if (filter_state) { | |
4538 | SvREFCNT_dec(filter_state); | |
a0714e2c | 4539 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
4540 | } |
4541 | if (filter_sub) { | |
4542 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 4543 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 4544 | } |
0bd48802 | 4545 | filter_del(S_run_user_filter); |
bbed91b5 KF |
4546 | } |
4547 | ||
4548 | return len; | |
4549 | } | |
84d4ea48 | 4550 | |
be4b629d CN |
4551 | /* perhaps someone can come up with a better name for |
4552 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 4553 | static bool |
5f66b61c | 4554 | S_path_is_absolute(const char *name) |
be4b629d CN |
4555 | { |
4556 | if (PERL_FILE_IS_ABSOLUTE(name) | |
4557 | #ifdef MACOS_TRADITIONAL | |
0bd48802 | 4558 | || (*name == ':') |
be4b629d CN |
4559 | #else |
4560 | || (*name == '.' && (name[1] == '/' || | |
0bd48802 | 4561 | (name[1] == '.' && name[2] == '/'))) |
be4b629d | 4562 | #endif |
0bd48802 | 4563 | ) |
be4b629d CN |
4564 | { |
4565 | return TRUE; | |
4566 | } | |
4567 | else | |
4568 | return FALSE; | |
4569 | } | |
241d1a3b NC |
4570 | |
4571 | /* | |
4572 | * Local variables: | |
4573 | * c-indentation-style: bsd | |
4574 | * c-basic-offset: 4 | |
4575 | * indent-tabs-mode: t | |
4576 | * End: | |
4577 | * | |
37442d52 RGS |
4578 | * ex: set ts=8 sts=4 sw=4 noet: |
4579 | */ |