Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* pp.c |
79072805 | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
79072805 | 5 | * |
a0d0e21e LW |
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. | |
79072805 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
13 | * to discover, and no knowing what you'll find round a corner. | |
14 | * And Elves, sir!' --Samwise Gamgee | |
15 | * | |
16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 17 | */ |
79072805 | 18 | |
166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
20 | * opcodes that make up a perl program. A typical pp function expects to | |
21 | * find its arguments on the stack, and usually pushes its results onto | |
22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
23 | * a pointer to the relevant pp_foo() function. | |
24 | */ | |
25 | ||
79072805 | 26 | #include "EXTERN.h" |
864dbfa3 | 27 | #define PERL_IN_PP_C |
79072805 | 28 | #include "perl.h" |
77bc9082 | 29 | #include "keywords.h" |
79072805 | 30 | |
a4af207c JH |
31 | #include "reentr.h" |
32 | ||
dfe9444c AD |
33 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
34 | it, since pid_t is an integral type. | |
35 | --AD 2/20/1998 | |
36 | */ | |
37 | #ifdef NEED_GETPID_PROTO | |
38 | extern Pid_t getpid (void); | |
8ac85365 NIS |
39 | #endif |
40 | ||
0630166f SP |
41 | /* |
42 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
43 | * This switches them over to IEEE. | |
44 | */ | |
45 | #if defined(LIBM_LIB_VERSION) | |
46 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
47 | #endif | |
48 | ||
13017935 SM |
49 | /* variations on pp_null */ |
50 | ||
93a17b20 LW |
51 | PP(pp_stub) |
52 | { | |
97aff369 | 53 | dVAR; |
39644a26 | 54 | dSP; |
54310121 | 55 | if (GIMME_V == G_SCALAR) |
3280af22 | 56 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
57 | RETURN; |
58 | } | |
59 | ||
79072805 LW |
60 | /* Pushy stuff. */ |
61 | ||
93a17b20 LW |
62 | PP(pp_padav) |
63 | { | |
97aff369 | 64 | dVAR; dSP; dTARGET; |
13017935 | 65 | I32 gimme; |
e190e9b4 | 66 | assert(SvTYPE(TARG) == SVt_PVAV); |
533c011a | 67 | if (PL_op->op_private & OPpLVAL_INTRO) |
a5911867 RGS |
68 | if (!(PL_op->op_private & OPpPAD_STATE)) |
69 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
85e6fe83 | 70 | EXTEND(SP, 1); |
533c011a | 71 | if (PL_op->op_flags & OPf_REF) { |
85e6fe83 | 72 | PUSHs(TARG); |
93a17b20 | 73 | RETURN; |
40c94d11 FC |
74 | } else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
75 | const I32 flags = is_lvalue_sub(); | |
76 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
78f9721b SM |
77 | if (GIMME == G_SCALAR) |
78 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
79 | PUSHs(TARG); | |
80 | RETURN; | |
40c94d11 | 81 | } |
85e6fe83 | 82 | } |
13017935 SM |
83 | gimme = GIMME_V; |
84 | if (gimme == G_ARRAY) { | |
502c6561 | 85 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 | 86 | EXTEND(SP, maxarg); |
93965878 NIS |
87 | if (SvMAGICAL(TARG)) { |
88 | U32 i; | |
eb160463 | 89 | for (i=0; i < (U32)maxarg; i++) { |
502c6561 | 90 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
3280af22 | 91 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
92 | } |
93 | } | |
94 | else { | |
502c6561 | 95 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
93965878 | 96 | } |
85e6fe83 LW |
97 | SP += maxarg; |
98 | } | |
13017935 | 99 | else if (gimme == G_SCALAR) { |
1b6737cc | 100 | SV* const sv = sv_newmortal(); |
502c6561 | 101 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 LW |
102 | sv_setiv(sv, maxarg); |
103 | PUSHs(sv); | |
104 | } | |
105 | RETURN; | |
93a17b20 LW |
106 | } |
107 | ||
108 | PP(pp_padhv) | |
109 | { | |
97aff369 | 110 | dVAR; dSP; dTARGET; |
54310121 | 111 | I32 gimme; |
112 | ||
e190e9b4 | 113 | assert(SvTYPE(TARG) == SVt_PVHV); |
93a17b20 | 114 | XPUSHs(TARG); |
533c011a | 115 | if (PL_op->op_private & OPpLVAL_INTRO) |
a5911867 RGS |
116 | if (!(PL_op->op_private & OPpPAD_STATE)) |
117 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
533c011a | 118 | if (PL_op->op_flags & OPf_REF) |
93a17b20 | 119 | RETURN; |
40c94d11 FC |
120 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
121 | const I32 flags = is_lvalue_sub(); | |
122 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
78f9721b SM |
123 | if (GIMME == G_SCALAR) |
124 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
125 | RETURN; | |
40c94d11 | 126 | } |
78f9721b | 127 | } |
54310121 | 128 | gimme = GIMME_V; |
129 | if (gimme == G_ARRAY) { | |
981b7185 | 130 | RETURNOP(Perl_do_kv(aTHX)); |
85e6fe83 | 131 | } |
54310121 | 132 | else if (gimme == G_SCALAR) { |
85fbaab2 | 133 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
85e6fe83 | 134 | SETs(sv); |
85e6fe83 | 135 | } |
54310121 | 136 | RETURN; |
93a17b20 LW |
137 | } |
138 | ||
79072805 LW |
139 | /* Translations. */ |
140 | ||
4bdf8368 | 141 | static const char S_no_symref_sv[] = |
def89bff NC |
142 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
143 | ||
6f7909da FC |
144 | /* In some cases this function inspects PL_op. If this function is called |
145 | for new op types, more bool parameters may need to be added in place of | |
146 | the checks. | |
147 | ||
148 | When noinit is true, the absence of a gv will cause a retval of undef. | |
149 | This is unrelated to the cv-to-gv assignment case. | |
8ec5e241 | 150 | |
6f7909da FC |
151 | Make sure to use SPAGAIN after calling this. |
152 | */ | |
153 | ||
154 | static SV * | |
155 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
156 | const bool noinit) | |
157 | { | |
14f0f125 | 158 | dVAR; |
f64c9ac5 | 159 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 160 | if (SvROK(sv)) { |
93d7320b DM |
161 | if (SvAMAGIC(sv)) { |
162 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 163 | } |
e4a1664f | 164 | wasref: |
ed6116ce | 165 | sv = SvRV(sv); |
b1dadf13 | 166 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 167 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
52a6327b | 168 | gv_init(gv, 0, "$__ANONIO__", 11, 0); |
a45c7426 | 169 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 170 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 171 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 172 | } |
6e592b3a | 173 | else if (!isGV_with_GP(sv)) |
6f7909da | 174 | return (SV *)Perl_die(aTHX_ "Not a GLOB reference"); |
79072805 LW |
175 | } |
176 | else { | |
6e592b3a | 177 | if (!isGV_with_GP(sv)) { |
f132ae69 | 178 | if (!SvOK(sv)) { |
b13b2135 | 179 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 180 | * NI-S 1999/05/07 |
b13b2135 | 181 | */ |
f132ae69 | 182 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 183 | GV *gv; |
ce74145d FC |
184 | if (SvREADONLY(sv)) |
185 | Perl_croak_no_modify(aTHX); | |
2c8ac474 | 186 | if (cUNOP->op_targ) { |
0bd48802 | 187 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
159b6efe | 188 | gv = MUTABLE_GV(newSV(0)); |
6b10071b | 189 | gv_init_sv(gv, CopSTASH(PL_curcop), namesv, 0); |
2c8ac474 GS |
190 | } |
191 | else { | |
0bd48802 | 192 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b BF |
193 | gv = newGVgen_flags(name, |
194 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); | |
1d8d4d2a | 195 | } |
43230e26 | 196 | prepare_SV_for_RV(sv); |
ad64d0ec | 197 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 198 | SvROK_on(sv); |
1d8d4d2a | 199 | SvSETMAGIC(sv); |
853846ea | 200 | goto wasref; |
2c8ac474 | 201 | } |
6f7909da FC |
202 | if (PL_op->op_flags & OPf_REF || strict) |
203 | return (SV *)Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
599cee73 | 204 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 205 | report_uninit(sv); |
6f7909da | 206 | return &PL_sv_undef; |
a0d0e21e | 207 | } |
6f7909da | 208 | if (noinit) |
35cd451c | 209 | { |
77cb3b01 FC |
210 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
211 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 212 | )))) |
6f7909da | 213 | return &PL_sv_undef; |
35cd451c GS |
214 | } |
215 | else { | |
6f7909da FC |
216 | if (strict) |
217 | return | |
218 | (SV *)Perl_die(aTHX_ | |
219 | S_no_symref_sv, | |
220 | sv, | |
221 | (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), | |
222 | "a symbol" | |
223 | ); | |
e26df76a NC |
224 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
225 | == OPpDONT_INIT_GV) { | |
226 | /* We are the target of a coderef assignment. Return | |
227 | the scalar unchanged, and let pp_sasssign deal with | |
228 | things. */ | |
6f7909da | 229 | return sv; |
e26df76a | 230 | } |
77cb3b01 | 231 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 232 | } |
2acc3314 | 233 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 234 | SvFAKE_off(sv); |
93a17b20 | 235 | } |
79072805 | 236 | } |
96293f45 | 237 | if (SvFAKE(sv)) { |
2acc3314 | 238 | SV *newsv = sv_newmortal(); |
5cf4b255 | 239 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 240 | SvFAKE_off(newsv); |
d8906c05 | 241 | sv = newsv; |
2acc3314 | 242 | } |
6f7909da FC |
243 | return sv; |
244 | } | |
245 | ||
246 | PP(pp_rv2gv) | |
247 | { | |
248 | dVAR; dSP; dTOPss; | |
249 | ||
250 | sv = S_rv2gv(aTHX_ | |
251 | sv, PL_op->op_private & OPpDEREF, | |
252 | PL_op->op_private & HINT_STRICT_REFS, | |
253 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
254 | || PL_op->op_type == OP_READLINE | |
255 | ); | |
256 | SPAGAIN; | |
d8906c05 FC |
257 | if (PL_op->op_private & OPpLVAL_INTRO) |
258 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
259 | SETs(sv); | |
79072805 LW |
260 | RETURN; |
261 | } | |
262 | ||
dc3c76f8 NC |
263 | /* Helper function for pp_rv2sv and pp_rv2av */ |
264 | GV * | |
fe9845cc RB |
265 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
266 | const svtype type, SV ***spp) | |
dc3c76f8 NC |
267 | { |
268 | dVAR; | |
269 | GV *gv; | |
270 | ||
7918f24d NC |
271 | PERL_ARGS_ASSERT_SOFTREF2XV; |
272 | ||
dc3c76f8 NC |
273 | if (PL_op->op_private & HINT_STRICT_REFS) { |
274 | if (SvOK(sv)) | |
10b53e54 | 275 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
276 | else |
277 | Perl_die(aTHX_ PL_no_usym, what); | |
278 | } | |
279 | if (!SvOK(sv)) { | |
fd1d9b5c FC |
280 | if ( |
281 | PL_op->op_flags & OPf_REF && | |
282 | PL_op->op_next->op_type != OP_BOOLKEYS | |
283 | ) | |
dc3c76f8 NC |
284 | Perl_die(aTHX_ PL_no_usym, what); |
285 | if (ckWARN(WARN_UNINITIALIZED)) | |
286 | report_uninit(sv); | |
287 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
288 | (*spp)--; | |
289 | return NULL; | |
290 | } | |
291 | **spp = &PL_sv_undef; | |
292 | return NULL; | |
293 | } | |
294 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
295 | !(PL_op->op_flags & OPf_MOD)) | |
296 | { | |
77cb3b01 | 297 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
298 | { |
299 | **spp = &PL_sv_undef; | |
300 | return NULL; | |
301 | } | |
302 | } | |
303 | else { | |
77cb3b01 | 304 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
305 | } |
306 | return gv; | |
307 | } | |
308 | ||
79072805 LW |
309 | PP(pp_rv2sv) |
310 | { | |
97aff369 | 311 | dVAR; dSP; dTOPss; |
c445ea15 | 312 | GV *gv = NULL; |
79072805 | 313 | |
9026059d | 314 | SvGETMAGIC(sv); |
ed6116ce | 315 | if (SvROK(sv)) { |
93d7320b DM |
316 | if (SvAMAGIC(sv)) { |
317 | sv = amagic_deref_call(sv, to_sv_amg); | |
318 | SPAGAIN; | |
319 | } | |
f5284f61 | 320 | |
ed6116ce | 321 | sv = SvRV(sv); |
79072805 LW |
322 | switch (SvTYPE(sv)) { |
323 | case SVt_PVAV: | |
324 | case SVt_PVHV: | |
325 | case SVt_PVCV: | |
cbae9b9f YST |
326 | case SVt_PVFM: |
327 | case SVt_PVIO: | |
cea2e8a9 | 328 | DIE(aTHX_ "Not a SCALAR reference"); |
42d0e0b7 | 329 | default: NOOP; |
79072805 LW |
330 | } |
331 | } | |
332 | else { | |
159b6efe | 333 | gv = MUTABLE_GV(sv); |
748a9306 | 334 | |
6e592b3a | 335 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
336 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
337 | if (!gv) | |
338 | RETURN; | |
463ee0b2 | 339 | } |
29c711a3 | 340 | sv = GvSVn(gv); |
a0d0e21e | 341 | } |
533c011a | 342 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
343 | if (PL_op->op_private & OPpLVAL_INTRO) { |
344 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 345 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
346 | else if (gv) |
347 | sv = save_scalar(gv); | |
348 | else | |
f1f66076 | 349 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 350 | } |
533c011a | 351 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 352 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 353 | } |
a0d0e21e | 354 | SETs(sv); |
79072805 LW |
355 | RETURN; |
356 | } | |
357 | ||
358 | PP(pp_av2arylen) | |
359 | { | |
97aff369 | 360 | dVAR; dSP; |
502c6561 | 361 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
362 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
363 | if (lvalue) { | |
364 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
365 | if (!*sv) { | |
366 | *sv = newSV_type(SVt_PVMG); | |
367 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
368 | } | |
369 | SETs(*sv); | |
370 | } else { | |
e1dccc0d | 371 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 372 | } |
79072805 LW |
373 | RETURN; |
374 | } | |
375 | ||
a0d0e21e LW |
376 | PP(pp_pos) |
377 | { | |
2154eca7 | 378 | dVAR; dSP; dPOPss; |
8ec5e241 | 379 | |
78f9721b | 380 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
16eb5365 FC |
381 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
382 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); | |
383 | LvTYPE(ret) = '.'; | |
384 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
2154eca7 | 385 | PUSHs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
386 | RETURN; |
387 | } | |
388 | else { | |
a0d0e21e | 389 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
1b6737cc | 390 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
565764a8 | 391 | if (mg && mg->mg_len >= 0) { |
2154eca7 | 392 | dTARGET; |
a0ed51b3 | 393 | I32 i = mg->mg_len; |
7e2040f0 | 394 | if (DO_UTF8(sv)) |
a0ed51b3 | 395 | sv_pos_b2u(sv, &i); |
e1dccc0d | 396 | PUSHi(i); |
a0d0e21e LW |
397 | RETURN; |
398 | } | |
399 | } | |
400 | RETPUSHUNDEF; | |
401 | } | |
402 | } | |
403 | ||
79072805 LW |
404 | PP(pp_rv2cv) |
405 | { | |
97aff369 | 406 | dVAR; dSP; |
79072805 | 407 | GV *gv; |
1eced8f8 | 408 | HV *stash_unused; |
c445ea15 | 409 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 410 | ? GV_ADDMG |
c445ea15 AL |
411 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) |
412 | ? GV_ADD|GV_NOEXPAND | |
413 | : GV_ADD; | |
4633a7c4 LW |
414 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
415 | /* (But not in defined().) */ | |
e26df76a | 416 | |
1eced8f8 | 417 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
07055b4c CS |
418 | if (cv) { |
419 | if (CvCLONE(cv)) | |
ad64d0ec | 420 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
d32f2495 | 421 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
f5e29650 | 422 | if (gv && GvCV(gv) == cv && (gv = gv_autoload_pvn(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), GvNAMEUTF8(gv) ? SVf_UTF8 : 0))) |
d32f2495 SC |
423 | cv = GvCV(gv); |
424 | if (!CvLVALUE(cv)) | |
425 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
426 | } | |
07055b4c | 427 | } |
e26df76a | 428 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
ea726b52 | 429 | cv = MUTABLE_CV(gv); |
e26df76a | 430 | } |
07055b4c | 431 | else |
ea726b52 | 432 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 433 | SETs(MUTABLE_SV(cv)); |
79072805 LW |
434 | RETURN; |
435 | } | |
436 | ||
c07a80fd | 437 | PP(pp_prototype) |
438 | { | |
97aff369 | 439 | dVAR; dSP; |
c07a80fd | 440 | CV *cv; |
441 | HV *stash; | |
442 | GV *gv; | |
fabdb6c0 | 443 | SV *ret = &PL_sv_undef; |
c07a80fd | 444 | |
b6c543e3 | 445 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 446 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 447 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 448 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
b66130dd FC |
449 | if (!code || code == -KEY_CORE) |
450 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); | |
451 | if (code < 0) { /* Overridable. */ | |
452 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); | |
453 | if (sv) ret = sv; | |
454 | } | |
b8c38f0a | 455 | goto set; |
b6c543e3 IZ |
456 | } |
457 | } | |
f2c0649b | 458 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 459 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
460 | ret = newSVpvn_flags( |
461 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
462 | ); | |
b6c543e3 | 463 | set: |
c07a80fd | 464 | SETs(ret); |
465 | RETURN; | |
466 | } | |
467 | ||
a0d0e21e LW |
468 | PP(pp_anoncode) |
469 | { | |
97aff369 | 470 | dVAR; dSP; |
ea726b52 | 471 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 472 | if (CvCLONE(cv)) |
ad64d0ec | 473 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 474 | EXTEND(SP,1); |
ad64d0ec | 475 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
476 | RETURN; |
477 | } | |
478 | ||
479 | PP(pp_srefgen) | |
79072805 | 480 | { |
97aff369 | 481 | dVAR; dSP; |
71be2cbc | 482 | *SP = refto(*SP); |
79072805 | 483 | RETURN; |
8ec5e241 | 484 | } |
a0d0e21e LW |
485 | |
486 | PP(pp_refgen) | |
487 | { | |
97aff369 | 488 | dVAR; dSP; dMARK; |
a0d0e21e | 489 | if (GIMME != G_ARRAY) { |
5f0b1d4e GS |
490 | if (++MARK <= SP) |
491 | *MARK = *SP; | |
492 | else | |
3280af22 | 493 | *MARK = &PL_sv_undef; |
5f0b1d4e GS |
494 | *MARK = refto(*MARK); |
495 | SP = MARK; | |
496 | RETURN; | |
a0d0e21e | 497 | } |
bbce6d69 | 498 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 499 | while (++MARK <= SP) |
500 | *MARK = refto(*MARK); | |
a0d0e21e | 501 | RETURN; |
79072805 LW |
502 | } |
503 | ||
76e3520e | 504 | STATIC SV* |
cea2e8a9 | 505 | S_refto(pTHX_ SV *sv) |
71be2cbc | 506 | { |
97aff369 | 507 | dVAR; |
71be2cbc | 508 | SV* rv; |
509 | ||
7918f24d NC |
510 | PERL_ARGS_ASSERT_REFTO; |
511 | ||
71be2cbc | 512 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
513 | if (LvTARGLEN(sv)) | |
68dc0745 | 514 | vivify_defelem(sv); |
515 | if (!(sv = LvTARG(sv))) | |
3280af22 | 516 | sv = &PL_sv_undef; |
0dd88869 | 517 | else |
b37c2d43 | 518 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 519 | } |
d8b46c1b | 520 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
521 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
522 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 523 | SvTEMP_off(sv); |
b37c2d43 | 524 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 525 | } |
f2933f5f DM |
526 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
527 | sv = newSVsv(sv); | |
71be2cbc | 528 | else { |
529 | SvTEMP_off(sv); | |
b37c2d43 | 530 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 531 | } |
532 | rv = sv_newmortal(); | |
4df7f6af | 533 | sv_upgrade(rv, SVt_IV); |
b162af07 | 534 | SvRV_set(rv, sv); |
71be2cbc | 535 | SvROK_on(rv); |
536 | return rv; | |
537 | } | |
538 | ||
79072805 LW |
539 | PP(pp_ref) |
540 | { | |
97aff369 | 541 | dVAR; dSP; dTARGET; |
1b6737cc | 542 | SV * const sv = POPs; |
f12c7020 | 543 | |
5b295bef RD |
544 | if (sv) |
545 | SvGETMAGIC(sv); | |
f12c7020 | 546 | |
a0d0e21e | 547 | if (!sv || !SvROK(sv)) |
4633a7c4 | 548 | RETPUSHNO; |
79072805 | 549 | |
a15456de BF |
550 | (void)sv_ref(TARG,SvRV(sv),TRUE); |
551 | PUSHTARG; | |
79072805 LW |
552 | RETURN; |
553 | } | |
554 | ||
555 | PP(pp_bless) | |
556 | { | |
97aff369 | 557 | dVAR; dSP; |
463ee0b2 | 558 | HV *stash; |
79072805 | 559 | |
463ee0b2 | 560 | if (MAXARG == 1) |
c2f922f1 | 561 | curstash: |
11faa288 | 562 | stash = CopSTASH(PL_curcop); |
7b8d334a | 563 | else { |
1b6737cc | 564 | SV * const ssv = POPs; |
7b8d334a | 565 | STRLEN len; |
e1ec3a88 | 566 | const char *ptr; |
81689caa | 567 | |
c2f922f1 FC |
568 | if (!ssv) goto curstash; |
569 | if (!SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) | |
81689caa | 570 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
5c144d81 | 571 | ptr = SvPV_const(ssv,len); |
a2a5de95 NC |
572 | if (len == 0) |
573 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
574 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 575 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 576 | } |
a0d0e21e | 577 | |
5d3fdfeb | 578 | (void)sv_bless(TOPs, stash); |
79072805 LW |
579 | RETURN; |
580 | } | |
581 | ||
fb73857a | 582 | PP(pp_gelem) |
583 | { | |
97aff369 | 584 | dVAR; dSP; |
b13b2135 | 585 | |
1b6737cc | 586 | SV *sv = POPs; |
a180b31a BF |
587 | STRLEN len; |
588 | const char * const elem = SvPV_const(sv, len); | |
159b6efe | 589 | GV * const gv = MUTABLE_GV(POPs); |
c445ea15 | 590 | SV * tmpRef = NULL; |
1b6737cc | 591 | |
c445ea15 | 592 | sv = NULL; |
c4ba80c3 NC |
593 | if (elem) { |
594 | /* elem will always be NUL terminated. */ | |
1b6737cc | 595 | const char * const second_letter = elem + 1; |
c4ba80c3 NC |
596 | switch (*elem) { |
597 | case 'A': | |
a180b31a | 598 | if (len == 5 && strEQ(second_letter, "RRAY")) |
ad64d0ec | 599 | tmpRef = MUTABLE_SV(GvAV(gv)); |
c4ba80c3 NC |
600 | break; |
601 | case 'C': | |
a180b31a | 602 | if (len == 4 && strEQ(second_letter, "ODE")) |
ad64d0ec | 603 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
604 | break; |
605 | case 'F': | |
a180b31a | 606 | if (len == 10 && strEQ(second_letter, "ILEHANDLE")) { |
c4ba80c3 NC |
607 | /* finally deprecated in 5.8.0 */ |
608 | deprecate("*glob{FILEHANDLE}"); | |
ad64d0ec | 609 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
610 | } |
611 | else | |
a180b31a | 612 | if (len == 6 && strEQ(second_letter, "ORMAT")) |
ad64d0ec | 613 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
614 | break; |
615 | case 'G': | |
a180b31a | 616 | if (len == 4 && strEQ(second_letter, "LOB")) |
ad64d0ec | 617 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
618 | break; |
619 | case 'H': | |
a180b31a | 620 | if (len == 4 && strEQ(second_letter, "ASH")) |
ad64d0ec | 621 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
622 | break; |
623 | case 'I': | |
a180b31a | 624 | if (*second_letter == 'O' && !elem[2] && len == 2) |
ad64d0ec | 625 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
626 | break; |
627 | case 'N': | |
a180b31a | 628 | if (len == 4 && strEQ(second_letter, "AME")) |
a663657d | 629 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
630 | break; |
631 | case 'P': | |
a180b31a | 632 | if (len == 7 && strEQ(second_letter, "ACKAGE")) { |
7fa3a4ab NC |
633 | const HV * const stash = GvSTASH(gv); |
634 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 635 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
636 | } |
637 | break; | |
638 | case 'S': | |
a180b31a | 639 | if (len == 6 && strEQ(second_letter, "CALAR")) |
f9d52e31 | 640 | tmpRef = GvSVn(gv); |
c4ba80c3 | 641 | break; |
39b99f21 | 642 | } |
fb73857a | 643 | } |
76e3520e GS |
644 | if (tmpRef) |
645 | sv = newRV(tmpRef); | |
fb73857a | 646 | if (sv) |
647 | sv_2mortal(sv); | |
648 | else | |
3280af22 | 649 | sv = &PL_sv_undef; |
fb73857a | 650 | XPUSHs(sv); |
651 | RETURN; | |
652 | } | |
653 | ||
a0d0e21e | 654 | /* Pattern matching */ |
79072805 | 655 | |
a0d0e21e | 656 | PP(pp_study) |
79072805 | 657 | { |
97aff369 | 658 | dVAR; dSP; dPOPss; |
a0d0e21e | 659 | register unsigned char *s; |
72de20cd | 660 | char *sfirst_raw; |
a0d0e21e | 661 | STRLEN len; |
4185c919 | 662 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_study) : NULL; |
72de20cd NC |
663 | U8 quanta; |
664 | STRLEN size; | |
4185c919 NC |
665 | |
666 | if (mg && SvSCREAM(sv)) | |
667 | RETPUSHYES; | |
a0d0e21e | 668 | |
a4f4e906 | 669 | s = (unsigned char*)(SvPV(sv, len)); |
bc9a5256 | 670 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
a4f4e906 NC |
671 | /* No point in studying a zero length string, and not safe to study |
672 | anything that doesn't appear to be a simple scalar (and hence might | |
673 | change between now and when the regexp engine runs without our set | |
bd473224 | 674 | magic ever running) such as a reference to an object with overloaded |
bc9a5256 NC |
675 | stringification. Also refuse to study an FBM scalar, as this gives |
676 | more flexibility in SV flag usage. No real-world code would ever | |
677 | end up studying an FBM scalar, so this isn't a real pessimisation. | |
72de20cd NC |
678 | Endemic use of I32 in Perl_screaminstr makes it hard to safely push |
679 | the study length limit from I32_MAX to U32_MAX - 1. | |
bc9a5256 | 680 | */ |
a4f4e906 NC |
681 | RETPUSHNO; |
682 | } | |
683 | ||
72de20cd NC |
684 | if (len < 0xFF) { |
685 | quanta = 1; | |
686 | } else if (len < 0xFFFF) { | |
687 | quanta = 2; | |
688 | } else | |
689 | quanta = 4; | |
a0d0e21e | 690 | |
72de20cd NC |
691 | size = (256 + len) * quanta; |
692 | sfirst_raw = (char *)safemalloc(size); | |
693 | ||
694 | if (!sfirst_raw) | |
cea2e8a9 | 695 | DIE(aTHX_ "do_study: out of memory"); |
a0d0e21e | 696 | |
4185c919 NC |
697 | SvSCREAM_on(sv); |
698 | if (!mg) | |
699 | mg = sv_magicext(sv, NULL, PERL_MAGIC_study, &PL_vtbl_regexp, NULL, 0); | |
72de20cd NC |
700 | mg->mg_ptr = sfirst_raw; |
701 | mg->mg_len = size; | |
702 | mg->mg_private = quanta; | |
703 | ||
704 | memset(sfirst_raw, ~0, 256 * quanta); | |
705 | ||
706 | /* The assumption here is that most studied strings are fairly short, hence | |
707 | the pain of the extra code is worth it, given the memory savings. | |
708 | 80 character string, 336 bytes as U8, down from 1344 as U32 | |
709 | 800 character string, 2112 bytes as U16, down from 4224 as U32 | |
710 | */ | |
711 | ||
712 | if (quanta == 1) { | |
713 | U8 *const sfirst = (U8 *)sfirst_raw; | |
714 | U8 *const snext = sfirst + 256; | |
715 | while (len-- > 0) { | |
716 | const U8 ch = s[len]; | |
717 | snext[len] = sfirst[ch]; | |
718 | sfirst[ch] = len; | |
719 | } | |
720 | } else if (quanta == 2) { | |
721 | U16 *const sfirst = (U16 *)sfirst_raw; | |
722 | U16 *const snext = sfirst + 256; | |
723 | while (len-- > 0) { | |
724 | const U8 ch = s[len]; | |
725 | snext[len] = sfirst[ch]; | |
726 | sfirst[ch] = len; | |
727 | } | |
728 | } else { | |
729 | U32 *const sfirst = (U32 *)sfirst_raw; | |
730 | U32 *const snext = sfirst + 256; | |
731 | while (len-- > 0) { | |
732 | const U8 ch = s[len]; | |
733 | snext[len] = sfirst[ch]; | |
734 | sfirst[ch] = len; | |
735 | } | |
79072805 LW |
736 | } |
737 | ||
1e422769 | 738 | RETPUSHYES; |
79072805 LW |
739 | } |
740 | ||
a0d0e21e | 741 | PP(pp_trans) |
79072805 | 742 | { |
97aff369 | 743 | dVAR; dSP; dTARG; |
a0d0e21e LW |
744 | SV *sv; |
745 | ||
533c011a | 746 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 747 | sv = POPs; |
59f00321 RGS |
748 | else if (PL_op->op_private & OPpTARGET_MY) |
749 | sv = GETTARGET; | |
79072805 | 750 | else { |
54b9620d | 751 | sv = DEFSV; |
a0d0e21e | 752 | EXTEND(SP,1); |
79072805 | 753 | } |
adbc6bb1 | 754 | TARG = sv_newmortal(); |
bb16bae8 FC |
755 | if(PL_op->op_type == OP_TRANSR) { |
756 | SV * const newsv = newSVsv(sv); | |
757 | do_trans(newsv); | |
758 | mPUSHs(newsv); | |
759 | } | |
760 | else PUSHi(do_trans(sv)); | |
a0d0e21e | 761 | RETURN; |
79072805 LW |
762 | } |
763 | ||
a0d0e21e | 764 | /* Lvalue operators. */ |
79072805 | 765 | |
81745e4e NC |
766 | static void |
767 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) | |
768 | { | |
769 | dVAR; | |
770 | STRLEN len; | |
771 | char *s; | |
772 | ||
773 | PERL_ARGS_ASSERT_DO_CHOMP; | |
774 | ||
775 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
776 | return; | |
777 | if (SvTYPE(sv) == SVt_PVAV) { | |
778 | I32 i; | |
779 | AV *const av = MUTABLE_AV(sv); | |
780 | const I32 max = AvFILL(av); | |
781 | ||
782 | for (i = 0; i <= max; i++) { | |
783 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
784 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
785 | do_chomp(retval, sv, chomping); | |
786 | } | |
787 | return; | |
788 | } | |
789 | else if (SvTYPE(sv) == SVt_PVHV) { | |
790 | HV* const hv = MUTABLE_HV(sv); | |
791 | HE* entry; | |
792 | (void)hv_iterinit(hv); | |
793 | while ((entry = hv_iternext(hv))) | |
794 | do_chomp(retval, hv_iterval(hv,entry), chomping); | |
795 | return; | |
796 | } | |
797 | else if (SvREADONLY(sv)) { | |
798 | if (SvFAKE(sv)) { | |
799 | /* SV is copy-on-write */ | |
800 | sv_force_normal_flags(sv, 0); | |
801 | } | |
802 | if (SvREADONLY(sv)) | |
803 | Perl_croak_no_modify(aTHX); | |
804 | } | |
805 | ||
806 | if (PL_encoding) { | |
807 | if (!SvUTF8(sv)) { | |
808 | /* XXX, here sv is utf8-ized as a side-effect! | |
809 | If encoding.pm is used properly, almost string-generating | |
810 | operations, including literal strings, chr(), input data, etc. | |
811 | should have been utf8-ized already, right? | |
812 | */ | |
813 | sv_recode_to_utf8(sv, PL_encoding); | |
814 | } | |
815 | } | |
816 | ||
817 | s = SvPV(sv, len); | |
818 | if (chomping) { | |
819 | char *temp_buffer = NULL; | |
820 | SV *svrecode = NULL; | |
821 | ||
822 | if (s && len) { | |
823 | s += --len; | |
824 | if (RsPARA(PL_rs)) { | |
825 | if (*s != '\n') | |
826 | goto nope; | |
827 | ++SvIVX(retval); | |
828 | while (len && s[-1] == '\n') { | |
829 | --len; | |
830 | --s; | |
831 | ++SvIVX(retval); | |
832 | } | |
833 | } | |
834 | else { | |
835 | STRLEN rslen, rs_charlen; | |
836 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
837 | ||
838 | rs_charlen = SvUTF8(PL_rs) | |
839 | ? sv_len_utf8(PL_rs) | |
840 | : rslen; | |
841 | ||
842 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
843 | /* Assumption is that rs is shorter than the scalar. */ | |
844 | if (SvUTF8(PL_rs)) { | |
845 | /* RS is utf8, scalar is 8 bit. */ | |
846 | bool is_utf8 = TRUE; | |
847 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
848 | &rslen, &is_utf8); | |
849 | if (is_utf8) { | |
850 | /* Cannot downgrade, therefore cannot possibly match | |
851 | */ | |
852 | assert (temp_buffer == rsptr); | |
853 | temp_buffer = NULL; | |
854 | goto nope; | |
855 | } | |
856 | rsptr = temp_buffer; | |
857 | } | |
858 | else if (PL_encoding) { | |
859 | /* RS is 8 bit, encoding.pm is used. | |
860 | * Do not recode PL_rs as a side-effect. */ | |
861 | svrecode = newSVpvn(rsptr, rslen); | |
862 | sv_recode_to_utf8(svrecode, PL_encoding); | |
863 | rsptr = SvPV_const(svrecode, rslen); | |
864 | rs_charlen = sv_len_utf8(svrecode); | |
865 | } | |
866 | else { | |
867 | /* RS is 8 bit, scalar is utf8. */ | |
868 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
869 | rsptr = temp_buffer; | |
870 | } | |
871 | } | |
872 | if (rslen == 1) { | |
873 | if (*s != *rsptr) | |
874 | goto nope; | |
875 | ++SvIVX(retval); | |
876 | } | |
877 | else { | |
878 | if (len < rslen - 1) | |
879 | goto nope; | |
880 | len -= rslen - 1; | |
881 | s -= rslen - 1; | |
882 | if (memNE(s, rsptr, rslen)) | |
883 | goto nope; | |
884 | SvIVX(retval) += rs_charlen; | |
885 | } | |
886 | } | |
887 | s = SvPV_force_nolen(sv); | |
888 | SvCUR_set(sv, len); | |
889 | *SvEND(sv) = '\0'; | |
890 | SvNIOK_off(sv); | |
891 | SvSETMAGIC(sv); | |
892 | } | |
893 | nope: | |
894 | ||
895 | SvREFCNT_dec(svrecode); | |
896 | ||
897 | Safefree(temp_buffer); | |
898 | } else { | |
899 | if (len && !SvPOK(sv)) | |
900 | s = SvPV_force_nomg(sv, len); | |
901 | if (DO_UTF8(sv)) { | |
902 | if (s && len) { | |
903 | char * const send = s + len; | |
904 | char * const start = s; | |
905 | s = send - 1; | |
906 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
907 | s--; | |
908 | if (is_utf8_string((U8*)s, send - s)) { | |
909 | sv_setpvn(retval, s, send - s); | |
910 | *s = '\0'; | |
911 | SvCUR_set(sv, s - start); | |
912 | SvNIOK_off(sv); | |
913 | SvUTF8_on(retval); | |
914 | } | |
915 | } | |
916 | else | |
917 | sv_setpvs(retval, ""); | |
918 | } | |
919 | else if (s && len) { | |
920 | s += --len; | |
921 | sv_setpvn(retval, s, 1); | |
922 | *s = '\0'; | |
923 | SvCUR_set(sv, len); | |
924 | SvUTF8_off(sv); | |
925 | SvNIOK_off(sv); | |
926 | } | |
927 | else | |
928 | sv_setpvs(retval, ""); | |
929 | SvSETMAGIC(sv); | |
930 | } | |
931 | } | |
932 | ||
a0d0e21e LW |
933 | PP(pp_schop) |
934 | { | |
97aff369 | 935 | dVAR; dSP; dTARGET; |
fa54efae NC |
936 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
937 | ||
938 | if (chomping) | |
939 | sv_setiv(TARG, 0); | |
940 | do_chomp(TARG, TOPs, chomping); | |
a0d0e21e LW |
941 | SETTARG; |
942 | RETURN; | |
79072805 LW |
943 | } |
944 | ||
a0d0e21e | 945 | PP(pp_chop) |
79072805 | 946 | { |
97aff369 | 947 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 948 | const bool chomping = PL_op->op_type == OP_CHOMP; |
8ec5e241 | 949 | |
fa54efae NC |
950 | if (chomping) |
951 | sv_setiv(TARG, 0); | |
20cf1f79 | 952 | while (MARK < SP) |
fa54efae | 953 | do_chomp(TARG, *++MARK, chomping); |
20cf1f79 NC |
954 | SP = ORIGMARK; |
955 | XPUSHTARG; | |
a0d0e21e | 956 | RETURN; |
79072805 LW |
957 | } |
958 | ||
a0d0e21e LW |
959 | PP(pp_undef) |
960 | { | |
97aff369 | 961 | dVAR; dSP; |
a0d0e21e LW |
962 | SV *sv; |
963 | ||
533c011a | 964 | if (!PL_op->op_private) { |
774d564b | 965 | EXTEND(SP, 1); |
a0d0e21e | 966 | RETPUSHUNDEF; |
774d564b | 967 | } |
79072805 | 968 | |
a0d0e21e LW |
969 | sv = POPs; |
970 | if (!sv) | |
971 | RETPUSHUNDEF; | |
85e6fe83 | 972 | |
765f542d | 973 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
85e6fe83 | 974 | |
a0d0e21e LW |
975 | switch (SvTYPE(sv)) { |
976 | case SVt_NULL: | |
977 | break; | |
978 | case SVt_PVAV: | |
502c6561 | 979 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
980 | break; |
981 | case SVt_PVHV: | |
85fbaab2 | 982 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
983 | break; |
984 | case SVt_PVCV: | |
a2a5de95 | 985 | if (cv_const_sv((const CV *)sv)) |
714cd18f BF |
986 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
987 | "Constant subroutine %"SVf" undefined", | |
988 | SVfARG(CvANON((const CV *)sv) | |
989 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
990 | : sv_2mortal(newSVhek(GvENAME_HEK(CvGV((const CV *)sv)))))); | |
5f66b61c | 991 | /* FALLTHROUGH */ |
9607fc9c | 992 | case SVt_PVFM: |
6fc92669 GS |
993 | { |
994 | /* let user-undef'd sub keep its identity */ | |
ea726b52 NC |
995 | GV* const gv = CvGV((const CV *)sv); |
996 | cv_undef(MUTABLE_CV(sv)); | |
b3f91e91 | 997 | CvGV_set(MUTABLE_CV(sv), gv); |
6fc92669 | 998 | } |
a0d0e21e | 999 | break; |
8e07c86e | 1000 | case SVt_PVGV: |
6e592b3a | 1001 | if (SvFAKE(sv)) { |
3280af22 | 1002 | SvSetMagicSV(sv, &PL_sv_undef); |
6e592b3a BM |
1003 | break; |
1004 | } | |
1005 | else if (isGV_with_GP(sv)) { | |
20408e3c | 1006 | GP *gp; |
dd69841b BB |
1007 | HV *stash; |
1008 | ||
dd69841b | 1009 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
1010 | bool method_changed |
1011 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
1012 | && HvENAME_get(stash); | |
1013 | /* undef *Foo:: */ | |
1014 | if((stash = GvHV((const GV *)sv))) { | |
1015 | if(HvENAME_get(stash)) | |
1016 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
1017 | else stash = NULL; | |
1018 | } | |
dd69841b | 1019 | |
159b6efe | 1020 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 1021 | Newxz(gp, 1, GP); |
c43ae56f | 1022 | GvGP_set(sv, gp_ref(gp)); |
561b68a9 | 1023 | GvSV(sv) = newSV(0); |
57843af0 | 1024 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 1025 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 1026 | GvMULTI_on(sv); |
e530fb81 FC |
1027 | |
1028 | if(stash) | |
afdbe55d | 1029 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
1030 | stash = NULL; |
1031 | /* undef *Foo::ISA */ | |
1032 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
1033 | && (stash = GvSTASH((const GV *)sv)) | |
1034 | && (method_changed || HvENAME(stash)) ) | |
1035 | mro_isa_changed_in(stash); | |
1036 | else if(method_changed) | |
1037 | mro_method_changed_in( | |
da9043f5 | 1038 | GvSTASH((const GV *)sv) |
e530fb81 FC |
1039 | ); |
1040 | ||
6e592b3a | 1041 | break; |
20408e3c | 1042 | } |
6e592b3a | 1043 | /* FALL THROUGH */ |
a0d0e21e | 1044 | default: |
b15aece3 | 1045 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 1046 | SvPV_free(sv); |
c445ea15 | 1047 | SvPV_set(sv, NULL); |
4633a7c4 | 1048 | SvLEN_set(sv, 0); |
a0d0e21e | 1049 | } |
0c34ef67 | 1050 | SvOK_off(sv); |
4633a7c4 | 1051 | SvSETMAGIC(sv); |
79072805 | 1052 | } |
a0d0e21e LW |
1053 | |
1054 | RETPUSHUNDEF; | |
79072805 LW |
1055 | } |
1056 | ||
a0d0e21e LW |
1057 | PP(pp_postinc) |
1058 | { | |
97aff369 | 1059 | dVAR; dSP; dTARGET; |
c22c99bc FC |
1060 | const bool inc = |
1061 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
60092ce4 | 1062 | if (SvTYPE(TOPs) >= SVt_PVAV || (isGV_with_GP(TOPs) && !SvFAKE(TOPs))) |
6ad8f254 | 1063 | Perl_croak_no_modify(aTHX); |
7dcb9b98 DM |
1064 | if (SvROK(TOPs)) |
1065 | TARG = sv_newmortal(); | |
a0d0e21e | 1066 | sv_setsv(TARG, TOPs); |
3510b4a1 | 1067 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
c22c99bc | 1068 | && SvIVX(TOPs) != (inc ? IV_MAX : IV_MIN)) |
55497cff | 1069 | { |
c22c99bc | 1070 | SvIV_set(TOPs, SvIVX(TOPs) + (inc ? 1 : -1)); |
55497cff | 1071 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 | 1072 | } |
c22c99bc | 1073 | else if (inc) |
6f1401dc | 1074 | sv_inc_nomg(TOPs); |
c22c99bc | 1075 | else sv_dec_nomg(TOPs); |
a0d0e21e | 1076 | SvSETMAGIC(TOPs); |
1e54a23f | 1077 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1078 | if (inc && !SvOK(TARG)) |
a0d0e21e LW |
1079 | sv_setiv(TARG, 0); |
1080 | SETs(TARG); | |
1081 | return NORMAL; | |
1082 | } | |
79072805 | 1083 | |
a0d0e21e LW |
1084 | /* Ordinary operators. */ |
1085 | ||
1086 | PP(pp_pow) | |
1087 | { | |
800401ee | 1088 | dVAR; dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1089 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1090 | bool is_int = 0; |
1091 | #endif | |
6f1401dc DM |
1092 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1093 | svr = TOPs; | |
1094 | svl = TOPm1s; | |
52a96ae6 HS |
1095 | #ifdef PERL_PRESERVE_IVUV |
1096 | /* For integer to integer power, we do the calculation by hand wherever | |
1097 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1098 | integer afterwards. */ | |
58d76dfd | 1099 | { |
6f1401dc | 1100 | SvIV_please_nomg(svr); |
800401ee | 1101 | if (SvIOK(svr)) { |
6f1401dc | 1102 | SvIV_please_nomg(svl); |
800401ee | 1103 | if (SvIOK(svl)) { |
900658e3 PF |
1104 | UV power; |
1105 | bool baseuok; | |
1106 | UV baseuv; | |
1107 | ||
800401ee JH |
1108 | if (SvUOK(svr)) { |
1109 | power = SvUVX(svr); | |
900658e3 | 1110 | } else { |
800401ee | 1111 | const IV iv = SvIVX(svr); |
900658e3 PF |
1112 | if (iv >= 0) { |
1113 | power = iv; | |
1114 | } else { | |
1115 | goto float_it; /* Can't do negative powers this way. */ | |
1116 | } | |
1117 | } | |
1118 | ||
800401ee | 1119 | baseuok = SvUOK(svl); |
900658e3 | 1120 | if (baseuok) { |
800401ee | 1121 | baseuv = SvUVX(svl); |
900658e3 | 1122 | } else { |
800401ee | 1123 | const IV iv = SvIVX(svl); |
900658e3 PF |
1124 | if (iv >= 0) { |
1125 | baseuv = iv; | |
1126 | baseuok = TRUE; /* effectively it's a UV now */ | |
1127 | } else { | |
1128 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1129 | } | |
1130 | } | |
52a96ae6 HS |
1131 | /* now we have integer ** positive integer. */ |
1132 | is_int = 1; | |
1133 | ||
1134 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1135 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1136 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1137 | The logic here will work for any base (even non-integer |
1138 | bases) but it can be less accurate than | |
1139 | pow (base,power) or exp (power * log (base)) when the | |
1140 | intermediate values start to spill out of the mantissa. | |
1141 | With powers of 2 we know this can't happen. | |
1142 | And powers of 2 are the favourite thing for perl | |
1143 | programmers to notice ** not doing what they mean. */ | |
1144 | NV result = 1.0; | |
1145 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1146 | |
1147 | if (power & 1) { | |
1148 | result *= base; | |
1149 | } | |
1150 | while (power >>= 1) { | |
1151 | base *= base; | |
1152 | if (power & 1) { | |
1153 | result *= base; | |
1154 | } | |
1155 | } | |
58d76dfd JH |
1156 | SP--; |
1157 | SETn( result ); | |
6f1401dc | 1158 | SvIV_please_nomg(svr); |
58d76dfd | 1159 | RETURN; |
52a96ae6 HS |
1160 | } else { |
1161 | register unsigned int highbit = 8 * sizeof(UV); | |
900658e3 PF |
1162 | register unsigned int diff = 8 * sizeof(UV); |
1163 | while (diff >>= 1) { | |
1164 | highbit -= diff; | |
1165 | if (baseuv >> highbit) { | |
1166 | highbit += diff; | |
1167 | } | |
52a96ae6 HS |
1168 | } |
1169 | /* we now have baseuv < 2 ** highbit */ | |
1170 | if (power * highbit <= 8 * sizeof(UV)) { | |
1171 | /* result will definitely fit in UV, so use UV math | |
1172 | on same algorithm as above */ | |
1173 | register UV result = 1; | |
1174 | register UV base = baseuv; | |
f2338a2e | 1175 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1176 | if (odd_power) { |
1177 | result *= base; | |
1178 | } | |
1179 | while (power >>= 1) { | |
1180 | base *= base; | |
1181 | if (power & 1) { | |
52a96ae6 | 1182 | result *= base; |
52a96ae6 HS |
1183 | } |
1184 | } | |
1185 | SP--; | |
0615a994 | 1186 | if (baseuok || !odd_power) |
52a96ae6 HS |
1187 | /* answer is positive */ |
1188 | SETu( result ); | |
1189 | else if (result <= (UV)IV_MAX) | |
1190 | /* answer negative, fits in IV */ | |
1191 | SETi( -(IV)result ); | |
1192 | else if (result == (UV)IV_MIN) | |
1193 | /* 2's complement assumption: special case IV_MIN */ | |
1194 | SETi( IV_MIN ); | |
1195 | else | |
1196 | /* answer negative, doesn't fit */ | |
1197 | SETn( -(NV)result ); | |
1198 | RETURN; | |
1199 | } | |
1200 | } | |
1201 | } | |
1202 | } | |
58d76dfd | 1203 | } |
52a96ae6 | 1204 | float_it: |
58d76dfd | 1205 | #endif |
a0d0e21e | 1206 | { |
6f1401dc DM |
1207 | NV right = SvNV_nomg(svr); |
1208 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1209 | (void)POPs; |
3aaeb624 JA |
1210 | |
1211 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1212 | /* | |
1213 | We are building perl with long double support and are on an AIX OS | |
1214 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1215 | negative base. This was reported to IBM as PMR #23047-379 on | |
1216 | 03/06/2006. The problem exists in at least the following versions | |
1217 | of AIX and the libm fileset, and no doubt others as well: | |
1218 | ||
1219 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1220 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1221 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1222 | ||
1223 | So, until IBM fixes powl(), we provide the following workaround to | |
1224 | handle the problem ourselves. Our logic is as follows: for | |
1225 | negative bases (left), we use fmod(right, 2) to check if the | |
1226 | exponent is an odd or even integer: | |
1227 | ||
1228 | - if odd, powl(left, right) == -powl(-left, right) | |
1229 | - if even, powl(left, right) == powl(-left, right) | |
1230 | ||
1231 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1232 | we just return that (as NV_NAN). | |
1233 | */ | |
1234 | ||
1235 | if (left < 0.0) { | |
1236 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1237 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1238 | SETn( -Perl_pow( -left, right) ); | |
1239 | } else if (mod2 == 0.0) { /* even integer */ | |
1240 | SETn( Perl_pow( -left, right) ); | |
1241 | } else { /* fractional power */ | |
1242 | SETn( NV_NAN ); | |
1243 | } | |
1244 | } else { | |
1245 | SETn( Perl_pow( left, right) ); | |
1246 | } | |
1247 | #else | |
52a96ae6 | 1248 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1249 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1250 | ||
52a96ae6 HS |
1251 | #ifdef PERL_PRESERVE_IVUV |
1252 | if (is_int) | |
6f1401dc | 1253 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1254 | #endif |
1255 | RETURN; | |
93a17b20 | 1256 | } |
a0d0e21e LW |
1257 | } |
1258 | ||
1259 | PP(pp_multiply) | |
1260 | { | |
800401ee | 1261 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1262 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1263 | svr = TOPs; | |
1264 | svl = TOPm1s; | |
28e5dec8 | 1265 | #ifdef PERL_PRESERVE_IVUV |
6f1401dc | 1266 | SvIV_please_nomg(svr); |
800401ee | 1267 | if (SvIOK(svr)) { |
28e5dec8 JH |
1268 | /* Unless the left argument is integer in range we are going to have to |
1269 | use NV maths. Hence only attempt to coerce the right argument if | |
1270 | we know the left is integer. */ | |
1271 | /* Left operand is defined, so is it IV? */ | |
6f1401dc | 1272 | SvIV_please_nomg(svl); |
800401ee JH |
1273 | if (SvIOK(svl)) { |
1274 | bool auvok = SvUOK(svl); | |
1275 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1276 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1277 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1278 | UV alow; | |
1279 | UV ahigh; | |
1280 | UV blow; | |
1281 | UV bhigh; | |
1282 | ||
1283 | if (auvok) { | |
800401ee | 1284 | alow = SvUVX(svl); |
28e5dec8 | 1285 | } else { |
800401ee | 1286 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1287 | if (aiv >= 0) { |
1288 | alow = aiv; | |
1289 | auvok = TRUE; /* effectively it's a UV now */ | |
1290 | } else { | |
1291 | alow = -aiv; /* abs, auvok == false records sign */ | |
1292 | } | |
1293 | } | |
1294 | if (buvok) { | |
800401ee | 1295 | blow = SvUVX(svr); |
28e5dec8 | 1296 | } else { |
800401ee | 1297 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1298 | if (biv >= 0) { |
1299 | blow = biv; | |
1300 | buvok = TRUE; /* effectively it's a UV now */ | |
1301 | } else { | |
1302 | blow = -biv; /* abs, buvok == false records sign */ | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* If this does sign extension on unsigned it's time for plan B */ | |
1307 | ahigh = alow >> (4 * sizeof (UV)); | |
1308 | alow &= botmask; | |
1309 | bhigh = blow >> (4 * sizeof (UV)); | |
1310 | blow &= botmask; | |
1311 | if (ahigh && bhigh) { | |
6f207bd3 | 1312 | NOOP; |
28e5dec8 JH |
1313 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1314 | which is overflow. Drop to NVs below. */ | |
1315 | } else if (!ahigh && !bhigh) { | |
1316 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1317 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1318 | const UV product = alow * blow; |
28e5dec8 JH |
1319 | if (auvok == buvok) { |
1320 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1321 | SP--; | |
1322 | SETu( product ); | |
1323 | RETURN; | |
1324 | } else if (product <= (UV)IV_MIN) { | |
1325 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1326 | /* -ve result, which could overflow an IV */ | |
1327 | SP--; | |
25716404 | 1328 | SETi( -(IV)product ); |
28e5dec8 JH |
1329 | RETURN; |
1330 | } /* else drop to NVs below. */ | |
1331 | } else { | |
1332 | /* One operand is large, 1 small */ | |
1333 | UV product_middle; | |
1334 | if (bhigh) { | |
1335 | /* swap the operands */ | |
1336 | ahigh = bhigh; | |
1337 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1338 | blow = alow; | |
1339 | alow = bhigh; | |
1340 | } | |
1341 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1342 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1343 | product_middle = ahigh * blow; | |
1344 | if (!(product_middle & topmask)) { | |
1345 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1346 | UV product_low; | |
1347 | product_middle <<= (4 * sizeof (UV)); | |
1348 | product_low = alow * blow; | |
1349 | ||
1350 | /* as for pp_add, UV + something mustn't get smaller. | |
1351 | IIRC ANSI mandates this wrapping *behaviour* for | |
1352 | unsigned whatever the actual representation*/ | |
1353 | product_low += product_middle; | |
1354 | if (product_low >= product_middle) { | |
1355 | /* didn't overflow */ | |
1356 | if (auvok == buvok) { | |
1357 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1358 | SP--; | |
1359 | SETu( product_low ); | |
1360 | RETURN; | |
1361 | } else if (product_low <= (UV)IV_MIN) { | |
1362 | /* 2s complement assumption again */ | |
1363 | /* -ve result, which could overflow an IV */ | |
1364 | SP--; | |
25716404 | 1365 | SETi( -(IV)product_low ); |
28e5dec8 JH |
1366 | RETURN; |
1367 | } /* else drop to NVs below. */ | |
1368 | } | |
1369 | } /* product_middle too large */ | |
1370 | } /* ahigh && bhigh */ | |
800401ee JH |
1371 | } /* SvIOK(svl) */ |
1372 | } /* SvIOK(svr) */ | |
28e5dec8 | 1373 | #endif |
a0d0e21e | 1374 | { |
6f1401dc DM |
1375 | NV right = SvNV_nomg(svr); |
1376 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1377 | (void)POPs; |
a0d0e21e LW |
1378 | SETn( left * right ); |
1379 | RETURN; | |
79072805 | 1380 | } |
a0d0e21e LW |
1381 | } |
1382 | ||
1383 | PP(pp_divide) | |
1384 | { | |
800401ee | 1385 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1386 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1387 | svr = TOPs; | |
1388 | svl = TOPm1s; | |
5479d192 | 1389 | /* Only try to do UV divide first |
68795e93 | 1390 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1391 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1392 | to preserve)) | |
1393 | The assumption is that it is better to use floating point divide | |
1394 | whenever possible, only doing integer divide first if we can't be sure. | |
1395 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1396 | can be too large to preserve, so don't need to compile the code to | |
1397 | test the size of UVs. */ | |
1398 | ||
a0d0e21e | 1399 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1400 | # define PERL_TRY_UV_DIVIDE |
1401 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1402 | #else |
5479d192 NC |
1403 | # ifdef PERL_PRESERVE_IVUV |
1404 | # ifndef NV_PRESERVES_UV | |
1405 | # define PERL_TRY_UV_DIVIDE | |
1406 | # endif | |
1407 | # endif | |
a0d0e21e | 1408 | #endif |
5479d192 NC |
1409 | |
1410 | #ifdef PERL_TRY_UV_DIVIDE | |
6f1401dc | 1411 | SvIV_please_nomg(svr); |
800401ee | 1412 | if (SvIOK(svr)) { |
6f1401dc | 1413 | SvIV_please_nomg(svl); |
800401ee JH |
1414 | if (SvIOK(svl)) { |
1415 | bool left_non_neg = SvUOK(svl); | |
1416 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1417 | UV left; |
1418 | UV right; | |
1419 | ||
1420 | if (right_non_neg) { | |
800401ee | 1421 | right = SvUVX(svr); |
5479d192 NC |
1422 | } |
1423 | else { | |
800401ee | 1424 | const IV biv = SvIVX(svr); |
5479d192 NC |
1425 | if (biv >= 0) { |
1426 | right = biv; | |
1427 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1428 | } | |
1429 | else { | |
1430 | right = -biv; | |
1431 | } | |
1432 | } | |
1433 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1434 | warning before dieing, hence this test goes here. | |
1435 | If it were immediately before the second SvIV_please, then | |
1436 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1437 | no inspection would give no warning. */ |
5479d192 NC |
1438 | if (right == 0) |
1439 | DIE(aTHX_ "Illegal division by zero"); | |
1440 | ||
1441 | if (left_non_neg) { | |
800401ee | 1442 | left = SvUVX(svl); |
5479d192 NC |
1443 | } |
1444 | else { | |
800401ee | 1445 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1446 | if (aiv >= 0) { |
1447 | left = aiv; | |
1448 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1449 | } | |
1450 | else { | |
1451 | left = -aiv; | |
1452 | } | |
1453 | } | |
1454 | ||
1455 | if (left >= right | |
1456 | #ifdef SLOPPYDIVIDE | |
1457 | /* For sloppy divide we always attempt integer division. */ | |
1458 | #else | |
1459 | /* Otherwise we only attempt it if either or both operands | |
1460 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1461 | we fall through to the NV divide code below. However, |
1462 | as left >= right to ensure integer result here, we know that | |
1463 | we can skip the test on the right operand - right big | |
1464 | enough not to be preserved can't get here unless left is | |
1465 | also too big. */ | |
1466 | ||
1467 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1468 | #endif |
1469 | ) { | |
1470 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1471 | const UV result = left / right; |
5479d192 NC |
1472 | if (result * right == left) { |
1473 | SP--; /* result is valid */ | |
1474 | if (left_non_neg == right_non_neg) { | |
1475 | /* signs identical, result is positive. */ | |
1476 | SETu( result ); | |
1477 | RETURN; | |
1478 | } | |
1479 | /* 2s complement assumption */ | |
1480 | if (result <= (UV)IV_MIN) | |
91f3b821 | 1481 | SETi( -(IV)result ); |
5479d192 NC |
1482 | else { |
1483 | /* It's exact but too negative for IV. */ | |
1484 | SETn( -(NV)result ); | |
1485 | } | |
1486 | RETURN; | |
1487 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1488 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
5479d192 NC |
1489 | } /* left wasn't SvIOK */ |
1490 | } /* right wasn't SvIOK */ | |
1491 | #endif /* PERL_TRY_UV_DIVIDE */ | |
1492 | { | |
6f1401dc DM |
1493 | NV right = SvNV_nomg(svr); |
1494 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1495 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1496 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1497 | if (! Perl_isnan(right) && right == 0.0) | |
1498 | #else | |
5479d192 | 1499 | if (right == 0.0) |
ebc6a117 | 1500 | #endif |
5479d192 NC |
1501 | DIE(aTHX_ "Illegal division by zero"); |
1502 | PUSHn( left / right ); | |
1503 | RETURN; | |
79072805 | 1504 | } |
a0d0e21e LW |
1505 | } |
1506 | ||
1507 | PP(pp_modulo) | |
1508 | { | |
6f1401dc DM |
1509 | dVAR; dSP; dATARGET; |
1510 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
a0d0e21e | 1511 | { |
9c5ffd7c JH |
1512 | UV left = 0; |
1513 | UV right = 0; | |
dc656993 JH |
1514 | bool left_neg = FALSE; |
1515 | bool right_neg = FALSE; | |
e2c88acc NC |
1516 | bool use_double = FALSE; |
1517 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1518 | NV dright = 0.0; |
1519 | NV dleft = 0.0; | |
6f1401dc DM |
1520 | SV * const svr = TOPs; |
1521 | SV * const svl = TOPm1s; | |
1522 | SvIV_please_nomg(svr); | |
800401ee JH |
1523 | if (SvIOK(svr)) { |
1524 | right_neg = !SvUOK(svr); | |
e2c88acc | 1525 | if (!right_neg) { |
800401ee | 1526 | right = SvUVX(svr); |
e2c88acc | 1527 | } else { |
800401ee | 1528 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1529 | if (biv >= 0) { |
1530 | right = biv; | |
1531 | right_neg = FALSE; /* effectively it's a UV now */ | |
1532 | } else { | |
1533 | right = -biv; | |
1534 | } | |
1535 | } | |
1536 | } | |
1537 | else { | |
6f1401dc | 1538 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1539 | right_neg = dright < 0; |
1540 | if (right_neg) | |
1541 | dright = -dright; | |
e2c88acc NC |
1542 | if (dright < UV_MAX_P1) { |
1543 | right = U_V(dright); | |
1544 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1545 | } else { | |
1546 | use_double = TRUE; | |
1547 | } | |
787eafbd | 1548 | } |
a0d0e21e | 1549 | |
e2c88acc NC |
1550 | /* At this point use_double is only true if right is out of range for |
1551 | a UV. In range NV has been rounded down to nearest UV and | |
1552 | use_double false. */ | |
6f1401dc | 1553 | SvIV_please_nomg(svl); |
800401ee JH |
1554 | if (!use_double && SvIOK(svl)) { |
1555 | if (SvIOK(svl)) { | |
1556 | left_neg = !SvUOK(svl); | |
e2c88acc | 1557 | if (!left_neg) { |
800401ee | 1558 | left = SvUVX(svl); |
e2c88acc | 1559 | } else { |
800401ee | 1560 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1561 | if (aiv >= 0) { |
1562 | left = aiv; | |
1563 | left_neg = FALSE; /* effectively it's a UV now */ | |
1564 | } else { | |
1565 | left = -aiv; | |
1566 | } | |
1567 | } | |
1568 | } | |
1569 | } | |
787eafbd | 1570 | else { |
6f1401dc | 1571 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1572 | left_neg = dleft < 0; |
1573 | if (left_neg) | |
1574 | dleft = -dleft; | |
68dc0745 | 1575 | |
e2c88acc NC |
1576 | /* This should be exactly the 5.6 behaviour - if left and right are |
1577 | both in range for UV then use U_V() rather than floor. */ | |
1578 | if (!use_double) { | |
1579 | if (dleft < UV_MAX_P1) { | |
1580 | /* right was in range, so is dleft, so use UVs not double. | |
1581 | */ | |
1582 | left = U_V(dleft); | |
1583 | } | |
1584 | /* left is out of range for UV, right was in range, so promote | |
1585 | right (back) to double. */ | |
1586 | else { | |
1587 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1588 | consistent with the implicit +0 floor in the U_V() | |
1589 | inside the #if 1. */ | |
1590 | dleft = Perl_floor(dleft + 0.5); | |
1591 | use_double = TRUE; | |
1592 | if (dright_valid) | |
1593 | dright = Perl_floor(dright + 0.5); | |
1594 | else | |
1595 | dright = right; | |
1596 | } | |
1597 | } | |
1598 | } | |
6f1401dc | 1599 | sp -= 2; |
787eafbd | 1600 | if (use_double) { |
65202027 | 1601 | NV dans; |
787eafbd | 1602 | |
787eafbd | 1603 | if (!dright) |
cea2e8a9 | 1604 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1605 | |
65202027 | 1606 | dans = Perl_fmod(dleft, dright); |
787eafbd IZ |
1607 | if ((left_neg != right_neg) && dans) |
1608 | dans = dright - dans; | |
1609 | if (right_neg) | |
1610 | dans = -dans; | |
1611 | sv_setnv(TARG, dans); | |
1612 | } | |
1613 | else { | |
1614 | UV ans; | |
1615 | ||
787eafbd | 1616 | if (!right) |
cea2e8a9 | 1617 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1618 | |
1619 | ans = left % right; | |
1620 | if ((left_neg != right_neg) && ans) | |
1621 | ans = right - ans; | |
1622 | if (right_neg) { | |
1623 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1624 | /* could change -foo to be (~foo)+1 instead */ | |
1625 | if (ans <= ~((UV)IV_MAX)+1) | |
1626 | sv_setiv(TARG, ~ans+1); | |
1627 | else | |
65202027 | 1628 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1629 | } |
1630 | else | |
1631 | sv_setuv(TARG, ans); | |
1632 | } | |
1633 | PUSHTARG; | |
1634 | RETURN; | |
79072805 | 1635 | } |
a0d0e21e | 1636 | } |
79072805 | 1637 | |
a0d0e21e LW |
1638 | PP(pp_repeat) |
1639 | { | |
6f1401dc | 1640 | dVAR; dSP; dATARGET; |
2b573ace | 1641 | register IV count; |
6f1401dc DM |
1642 | SV *sv; |
1643 | ||
1644 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
1645 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
1646 | sv = POPs; | |
1647 | SvGETMAGIC(sv); | |
1648 | } | |
1649 | else { | |
1650 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
1651 | sv = POPs; | |
1652 | } | |
1653 | ||
2b573ace JH |
1654 | if (SvIOKp(sv)) { |
1655 | if (SvUOK(sv)) { | |
6f1401dc | 1656 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1657 | if (uv > IV_MAX) |
1658 | count = IV_MAX; /* The best we can do? */ | |
1659 | else | |
1660 | count = uv; | |
1661 | } else { | |
6f1401dc | 1662 | const IV iv = SvIV_nomg(sv); |
2b573ace JH |
1663 | if (iv < 0) |
1664 | count = 0; | |
1665 | else | |
1666 | count = iv; | |
1667 | } | |
1668 | } | |
1669 | else if (SvNOKp(sv)) { | |
6f1401dc | 1670 | const NV nv = SvNV_nomg(sv); |
2b573ace JH |
1671 | if (nv < 0.0) |
1672 | count = 0; | |
1673 | else | |
1674 | count = (IV)nv; | |
1675 | } | |
1676 | else | |
6f1401dc DM |
1677 | count = SvIV_nomg(sv); |
1678 | ||
533c011a | 1679 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1680 | dMARK; |
0bd48802 AL |
1681 | static const char oom_list_extend[] = "Out of memory during list extend"; |
1682 | const I32 items = SP - MARK; | |
1683 | const I32 max = items * count; | |
79072805 | 1684 | |
2b573ace JH |
1685 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
1686 | /* Did the max computation overflow? */ | |
27d5b266 | 1687 | if (items > 0 && max > 0 && (max < items || max < count)) |
2b573ace | 1688 | Perl_croak(aTHX_ oom_list_extend); |
a0d0e21e LW |
1689 | MEXTEND(MARK, max); |
1690 | if (count > 1) { | |
1691 | while (SP > MARK) { | |
976c8a39 JH |
1692 | #if 0 |
1693 | /* This code was intended to fix 20010809.028: | |
1694 | ||
1695 | $x = 'abcd'; | |
1696 | for (($x =~ /./g) x 2) { | |
1697 | print chop; # "abcdabcd" expected as output. | |
1698 | } | |
1699 | ||
1700 | * but that change (#11635) broke this code: | |
1701 | ||
1702 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
1703 | ||
1704 | * I can't think of a better fix that doesn't introduce | |
1705 | * an efficiency hit by copying the SVs. The stack isn't | |
1706 | * refcounted, and mortalisation obviously doesn't | |
1707 | * Do The Right Thing when the stack has more than | |
1708 | * one pointer to the same mortal value. | |
1709 | * .robin. | |
1710 | */ | |
e30acc16 RH |
1711 | if (*SP) { |
1712 | *SP = sv_2mortal(newSVsv(*SP)); | |
1713 | SvREADONLY_on(*SP); | |
1714 | } | |
976c8a39 JH |
1715 | #else |
1716 | if (*SP) | |
1717 | SvTEMP_off((*SP)); | |
1718 | #endif | |
a0d0e21e | 1719 | SP--; |
79072805 | 1720 | } |
a0d0e21e LW |
1721 | MARK++; |
1722 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1723 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1724 | SP += max; |
79072805 | 1725 | } |
a0d0e21e LW |
1726 | else if (count <= 0) |
1727 | SP -= items; | |
79072805 | 1728 | } |
a0d0e21e | 1729 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1730 | SV * const tmpstr = POPs; |
a0d0e21e | 1731 | STRLEN len; |
9b877dbb | 1732 | bool isutf; |
2b573ace JH |
1733 | static const char oom_string_extend[] = |
1734 | "Out of memory during string extend"; | |
a0d0e21e | 1735 | |
6f1401dc DM |
1736 | if (TARG != tmpstr) |
1737 | sv_setsv_nomg(TARG, tmpstr); | |
1738 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1739 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1740 | if (count != 1) { |
1741 | if (count < 1) | |
1742 | SvCUR_set(TARG, 0); | |
1743 | else { | |
c445ea15 | 1744 | const STRLEN max = (UV)count * len; |
19a94d75 | 1745 | if (len > MEM_SIZE_MAX / count) |
2b573ace JH |
1746 | Perl_croak(aTHX_ oom_string_extend); |
1747 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
8569b9dc | 1748 | SvGROW(TARG, max + 1); |
a0d0e21e | 1749 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1750 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1751 | } |
a0d0e21e | 1752 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1753 | } |
dfcb284a GS |
1754 | if (isutf) |
1755 | (void)SvPOK_only_UTF8(TARG); | |
1756 | else | |
1757 | (void)SvPOK_only(TARG); | |
b80b6069 RH |
1758 | |
1759 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
1760 | /* The parser saw this as a list repeat, and there | |
1761 | are probably several items on the stack. But we're | |
1762 | in scalar context, and there's no pp_list to save us | |
1763 | now. So drop the rest of the items -- robin@kitsite.com | |
1764 | */ | |
1765 | dMARK; | |
1766 | SP = MARK; | |
1767 | } | |
a0d0e21e | 1768 | PUSHTARG; |
79072805 | 1769 | } |
a0d0e21e LW |
1770 | RETURN; |
1771 | } | |
79072805 | 1772 | |
a0d0e21e LW |
1773 | PP(pp_subtract) |
1774 | { | |
800401ee | 1775 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1776 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1777 | svr = TOPs; | |
1778 | svl = TOPm1s; | |
800401ee | 1779 | useleft = USE_LEFT(svl); |
28e5dec8 | 1780 | #ifdef PERL_PRESERVE_IVUV |
7dca457a NC |
1781 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1782 | "bad things" happen if you rely on signed integers wrapping. */ | |
6f1401dc | 1783 | SvIV_please_nomg(svr); |
800401ee | 1784 | if (SvIOK(svr)) { |
28e5dec8 JH |
1785 | /* Unless the left argument is integer in range we are going to have to |
1786 | use NV maths. Hence only attempt to coerce the right argument if | |
1787 | we know the left is integer. */ | |
9c5ffd7c JH |
1788 | register UV auv = 0; |
1789 | bool auvok = FALSE; | |
7dca457a NC |
1790 | bool a_valid = 0; |
1791 | ||
28e5dec8 | 1792 | if (!useleft) { |
7dca457a NC |
1793 | auv = 0; |
1794 | a_valid = auvok = 1; | |
1795 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1796 | } else { |
1797 | /* Left operand is defined, so is it IV? */ | |
6f1401dc | 1798 | SvIV_please_nomg(svl); |
800401ee JH |
1799 | if (SvIOK(svl)) { |
1800 | if ((auvok = SvUOK(svl))) | |
1801 | auv = SvUVX(svl); | |
7dca457a | 1802 | else { |
800401ee | 1803 | register const IV aiv = SvIVX(svl); |
7dca457a NC |
1804 | if (aiv >= 0) { |
1805 | auv = aiv; | |
1806 | auvok = 1; /* Now acting as a sign flag. */ | |
1807 | } else { /* 2s complement assumption for IV_MIN */ | |
1808 | auv = (UV)-aiv; | |
28e5dec8 | 1809 | } |
7dca457a NC |
1810 | } |
1811 | a_valid = 1; | |
1812 | } | |
1813 | } | |
1814 | if (a_valid) { | |
1815 | bool result_good = 0; | |
1816 | UV result; | |
1817 | register UV buv; | |
800401ee | 1818 | bool buvok = SvUOK(svr); |
9041c2e3 | 1819 | |
7dca457a | 1820 | if (buvok) |
800401ee | 1821 | buv = SvUVX(svr); |
7dca457a | 1822 | else { |
800401ee | 1823 | register const IV biv = SvIVX(svr); |
7dca457a NC |
1824 | if (biv >= 0) { |
1825 | buv = biv; | |
1826 | buvok = 1; | |
1827 | } else | |
1828 | buv = (UV)-biv; | |
1829 | } | |
1830 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1831 | else "IV" now, independent of how it came in. |
7dca457a NC |
1832 | if a, b represents positive, A, B negative, a maps to -A etc |
1833 | a - b => (a - b) | |
1834 | A - b => -(a + b) | |
1835 | a - B => (a + b) | |
1836 | A - B => -(a - b) | |
1837 | all UV maths. negate result if A negative. | |
1838 | subtract if signs same, add if signs differ. */ | |
1839 | ||
1840 | if (auvok ^ buvok) { | |
1841 | /* Signs differ. */ | |
1842 | result = auv + buv; | |
1843 | if (result >= auv) | |
1844 | result_good = 1; | |
1845 | } else { | |
1846 | /* Signs same */ | |
1847 | if (auv >= buv) { | |
1848 | result = auv - buv; | |
1849 | /* Must get smaller */ | |
1850 | if (result <= auv) | |
1851 | result_good = 1; | |
1852 | } else { | |
1853 | result = buv - auv; | |
1854 | if (result <= buv) { | |
1855 | /* result really should be -(auv-buv). as its negation | |
1856 | of true value, need to swap our result flag */ | |
1857 | auvok = !auvok; | |
1858 | result_good = 1; | |
28e5dec8 | 1859 | } |
28e5dec8 JH |
1860 | } |
1861 | } | |
7dca457a NC |
1862 | if (result_good) { |
1863 | SP--; | |
1864 | if (auvok) | |
1865 | SETu( result ); | |
1866 | else { | |
1867 | /* Negate result */ | |
1868 | if (result <= (UV)IV_MIN) | |
1869 | SETi( -(IV)result ); | |
1870 | else { | |
1871 | /* result valid, but out of range for IV. */ | |
1872 | SETn( -(NV)result ); | |
1873 | } | |
1874 | } | |
1875 | RETURN; | |
1876 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1877 | } |
1878 | } | |
1879 | #endif | |
a0d0e21e | 1880 | { |
6f1401dc | 1881 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1882 | (void)POPs; |
1883 | ||
28e5dec8 JH |
1884 | if (!useleft) { |
1885 | /* left operand is undef, treat as zero - value */ | |
1886 | SETn(-value); | |
1887 | RETURN; | |
1888 | } | |
6f1401dc | 1889 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1890 | RETURN; |
79072805 | 1891 | } |
a0d0e21e | 1892 | } |
79072805 | 1893 | |
a0d0e21e LW |
1894 | PP(pp_left_shift) |
1895 | { | |
6f1401dc | 1896 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1897 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1898 | svr = POPs; |
1899 | svl = TOPs; | |
a0d0e21e | 1900 | { |
6f1401dc | 1901 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1902 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1903 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1904 | SETi(i << shift); |
d0ba1bd2 JH |
1905 | } |
1906 | else { | |
6f1401dc | 1907 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1908 | SETu(u << shift); |
d0ba1bd2 | 1909 | } |
55497cff | 1910 | RETURN; |
79072805 | 1911 | } |
a0d0e21e | 1912 | } |
79072805 | 1913 | |
a0d0e21e LW |
1914 | PP(pp_right_shift) |
1915 | { | |
6f1401dc | 1916 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1917 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1918 | svr = POPs; |
1919 | svl = TOPs; | |
a0d0e21e | 1920 | { |
6f1401dc | 1921 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1922 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1923 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1924 | SETi(i >> shift); |
d0ba1bd2 JH |
1925 | } |
1926 | else { | |
6f1401dc | 1927 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1928 | SETu(u >> shift); |
d0ba1bd2 | 1929 | } |
a0d0e21e | 1930 | RETURN; |
93a17b20 | 1931 | } |
79072805 LW |
1932 | } |
1933 | ||
a0d0e21e | 1934 | PP(pp_lt) |
79072805 | 1935 | { |
6f1401dc | 1936 | dVAR; dSP; |
33efebe6 DM |
1937 | SV *left, *right; |
1938 | ||
a42d0242 | 1939 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
1940 | right = POPs; |
1941 | left = TOPs; | |
1942 | SETs(boolSV( | |
1943 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1944 | ? (SvIVX(left) < SvIVX(right)) | |
1945 | : (do_ncmp(left, right) == -1) | |
1946 | )); | |
1947 | RETURN; | |
a0d0e21e | 1948 | } |
79072805 | 1949 | |
a0d0e21e LW |
1950 | PP(pp_gt) |
1951 | { | |
6f1401dc | 1952 | dVAR; dSP; |
33efebe6 | 1953 | SV *left, *right; |
1b6737cc | 1954 | |
33efebe6 DM |
1955 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
1956 | right = POPs; | |
1957 | left = TOPs; | |
1958 | SETs(boolSV( | |
1959 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1960 | ? (SvIVX(left) > SvIVX(right)) | |
1961 | : (do_ncmp(left, right) == 1) | |
1962 | )); | |
1963 | RETURN; | |
a0d0e21e LW |
1964 | } |
1965 | ||
1966 | PP(pp_le) | |
1967 | { | |
6f1401dc | 1968 | dVAR; dSP; |
33efebe6 | 1969 | SV *left, *right; |
1b6737cc | 1970 | |
33efebe6 DM |
1971 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
1972 | right = POPs; | |
1973 | left = TOPs; | |
1974 | SETs(boolSV( | |
1975 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1976 | ? (SvIVX(left) <= SvIVX(right)) | |
1977 | : (do_ncmp(left, right) <= 0) | |
1978 | )); | |
1979 | RETURN; | |
a0d0e21e LW |
1980 | } |
1981 | ||
1982 | PP(pp_ge) | |
1983 | { | |
6f1401dc | 1984 | dVAR; dSP; |
33efebe6 DM |
1985 | SV *left, *right; |
1986 | ||
1987 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
1988 | right = POPs; | |
1989 | left = TOPs; | |
1990 | SETs(boolSV( | |
1991 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1992 | ? (SvIVX(left) >= SvIVX(right)) | |
1993 | : ( (do_ncmp(left, right) & 2) == 0) | |
1994 | )); | |
1995 | RETURN; | |
1996 | } | |
1b6737cc | 1997 | |
33efebe6 DM |
1998 | PP(pp_ne) |
1999 | { | |
2000 | dVAR; dSP; | |
2001 | SV *left, *right; | |
2002 | ||
2003 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
2004 | right = POPs; | |
2005 | left = TOPs; | |
2006 | SETs(boolSV( | |
2007 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2008 | ? (SvIVX(left) != SvIVX(right)) | |
2009 | : (do_ncmp(left, right) != 0) | |
2010 | )); | |
2011 | RETURN; | |
2012 | } | |
1b6737cc | 2013 | |
33efebe6 DM |
2014 | /* compare left and right SVs. Returns: |
2015 | * -1: < | |
2016 | * 0: == | |
2017 | * 1: > | |
2018 | * 2: left or right was a NaN | |
2019 | */ | |
2020 | I32 | |
2021 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2022 | { | |
2023 | dVAR; | |
1b6737cc | 2024 | |
33efebe6 DM |
2025 | PERL_ARGS_ASSERT_DO_NCMP; |
2026 | #ifdef PERL_PRESERVE_IVUV | |
2027 | SvIV_please_nomg(right); | |
2028 | /* Fortunately it seems NaN isn't IOK */ | |
2029 | if (SvIOK(right)) { | |
2030 | SvIV_please_nomg(left); | |
2031 | if (SvIOK(left)) { | |
2032 | if (!SvUOK(left)) { | |
2033 | const IV leftiv = SvIVX(left); | |
2034 | if (!SvUOK(right)) { | |
2035 | /* ## IV <=> IV ## */ | |
2036 | const IV rightiv = SvIVX(right); | |
2037 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2038 | } |
33efebe6 DM |
2039 | /* ## IV <=> UV ## */ |
2040 | if (leftiv < 0) | |
2041 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2042 | return -1; | |
2043 | { | |
2044 | const UV rightuv = SvUVX(right); | |
2045 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2046 | } |
28e5dec8 | 2047 | } |
79072805 | 2048 | |
33efebe6 DM |
2049 | if (SvUOK(right)) { |
2050 | /* ## UV <=> UV ## */ | |
2051 | const UV leftuv = SvUVX(left); | |
2052 | const UV rightuv = SvUVX(right); | |
2053 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2054 | } |
33efebe6 DM |
2055 | /* ## UV <=> IV ## */ |
2056 | { | |
2057 | const IV rightiv = SvIVX(right); | |
2058 | if (rightiv < 0) | |
2059 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2060 | return 1; | |
2061 | { | |
2062 | const UV leftuv = SvUVX(left); | |
2063 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2064 | } |
28e5dec8 | 2065 | } |
33efebe6 | 2066 | /* NOTREACHED */ |
28e5dec8 JH |
2067 | } |
2068 | } | |
2069 | #endif | |
a0d0e21e | 2070 | { |
33efebe6 DM |
2071 | NV const rnv = SvNV_nomg(right); |
2072 | NV const lnv = SvNV_nomg(left); | |
2073 | ||
cab190d4 | 2074 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2075 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2076 | return 2; | |
2077 | } | |
2078 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2079 | #else |
33efebe6 DM |
2080 | if (lnv < rnv) |
2081 | return -1; | |
2082 | if (lnv > rnv) | |
2083 | return 1; | |
2084 | if (lnv == rnv) | |
2085 | return 0; | |
2086 | return 2; | |
cab190d4 | 2087 | #endif |
a0d0e21e | 2088 | } |
79072805 LW |
2089 | } |
2090 | ||
33efebe6 | 2091 | |
a0d0e21e | 2092 | PP(pp_ncmp) |
79072805 | 2093 | { |
33efebe6 DM |
2094 | dVAR; dSP; |
2095 | SV *left, *right; | |
2096 | I32 value; | |
a42d0242 | 2097 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2098 | right = POPs; |
2099 | left = TOPs; | |
2100 | value = do_ncmp(left, right); | |
2101 | if (value == 2) { | |
3280af22 | 2102 | SETs(&PL_sv_undef); |
79072805 | 2103 | } |
33efebe6 DM |
2104 | else { |
2105 | dTARGET; | |
2106 | SETi(value); | |
2107 | } | |
2108 | RETURN; | |
a0d0e21e | 2109 | } |
79072805 | 2110 | |
afd9910b | 2111 | PP(pp_sle) |
a0d0e21e | 2112 | { |
97aff369 | 2113 | dVAR; dSP; |
79072805 | 2114 | |
afd9910b NC |
2115 | int amg_type = sle_amg; |
2116 | int multiplier = 1; | |
2117 | int rhs = 1; | |
79072805 | 2118 | |
afd9910b NC |
2119 | switch (PL_op->op_type) { |
2120 | case OP_SLT: | |
2121 | amg_type = slt_amg; | |
2122 | /* cmp < 0 */ | |
2123 | rhs = 0; | |
2124 | break; | |
2125 | case OP_SGT: | |
2126 | amg_type = sgt_amg; | |
2127 | /* cmp > 0 */ | |
2128 | multiplier = -1; | |
2129 | rhs = 0; | |
2130 | break; | |
2131 | case OP_SGE: | |
2132 | amg_type = sge_amg; | |
2133 | /* cmp >= 0 */ | |
2134 | multiplier = -1; | |
2135 | break; | |
79072805 | 2136 | } |
79072805 | 2137 | |
6f1401dc | 2138 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2139 | { |
2140 | dPOPTOPssrl; | |
1b6737cc | 2141 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2142 | ? sv_cmp_locale_flags(left, right, 0) |
2143 | : sv_cmp_flags(left, right, 0)); | |
afd9910b | 2144 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2145 | RETURN; |
2146 | } | |
2147 | } | |
79072805 | 2148 | |
36477c24 | 2149 | PP(pp_seq) |
2150 | { | |
6f1401dc DM |
2151 | dVAR; dSP; |
2152 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
36477c24 | 2153 | { |
2154 | dPOPTOPssrl; | |
078504b2 | 2155 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2156 | RETURN; |
2157 | } | |
2158 | } | |
79072805 | 2159 | |
a0d0e21e | 2160 | PP(pp_sne) |
79072805 | 2161 | { |
6f1401dc DM |
2162 | dVAR; dSP; |
2163 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
a0d0e21e LW |
2164 | { |
2165 | dPOPTOPssrl; | |
078504b2 | 2166 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2167 | RETURN; |
463ee0b2 | 2168 | } |
79072805 LW |
2169 | } |
2170 | ||
a0d0e21e | 2171 | PP(pp_scmp) |
79072805 | 2172 | { |
6f1401dc DM |
2173 | dVAR; dSP; dTARGET; |
2174 | tryAMAGICbin_MG(scmp_amg, 0); | |
a0d0e21e LW |
2175 | { |
2176 | dPOPTOPssrl; | |
1b6737cc | 2177 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2178 | ? sv_cmp_locale_flags(left, right, 0) |
2179 | : sv_cmp_flags(left, right, 0)); | |
bbce6d69 | 2180 | SETi( cmp ); |
a0d0e21e LW |
2181 | RETURN; |
2182 | } | |
2183 | } | |
79072805 | 2184 | |
55497cff | 2185 | PP(pp_bit_and) |
2186 | { | |
6f1401dc DM |
2187 | dVAR; dSP; dATARGET; |
2188 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
a0d0e21e LW |
2189 | { |
2190 | dPOPTOPssrl; | |
4633a7c4 | 2191 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2192 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2193 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2194 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2195 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2196 | SETi(i); |
d0ba1bd2 JH |
2197 | } |
2198 | else { | |
1b6737cc | 2199 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2200 | SETu(u); |
d0ba1bd2 | 2201 | } |
b20c4ee1 FC |
2202 | if (left_ro_nonnum) SvNIOK_off(left); |
2203 | if (right_ro_nonnum) SvNIOK_off(right); | |
a0d0e21e LW |
2204 | } |
2205 | else { | |
533c011a | 2206 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2207 | SETTARG; |
2208 | } | |
2209 | RETURN; | |
2210 | } | |
2211 | } | |
79072805 | 2212 | |
a0d0e21e LW |
2213 | PP(pp_bit_or) |
2214 | { | |
3658c1f1 NC |
2215 | dVAR; dSP; dATARGET; |
2216 | const int op_type = PL_op->op_type; | |
2217 | ||
6f1401dc | 2218 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2219 | { |
2220 | dPOPTOPssrl; | |
4633a7c4 | 2221 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2222 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2223 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2224 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2225 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2226 | const IV r = SvIV_nomg(right); | |
2227 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2228 | SETi(result); | |
d0ba1bd2 JH |
2229 | } |
2230 | else { | |
3658c1f1 NC |
2231 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2232 | const UV r = SvUV_nomg(right); | |
2233 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2234 | SETu(result); | |
d0ba1bd2 | 2235 | } |
b20c4ee1 FC |
2236 | if (left_ro_nonnum) SvNIOK_off(left); |
2237 | if (right_ro_nonnum) SvNIOK_off(right); | |
a0d0e21e LW |
2238 | } |
2239 | else { | |
3658c1f1 | 2240 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2241 | SETTARG; |
2242 | } | |
2243 | RETURN; | |
79072805 | 2244 | } |
a0d0e21e | 2245 | } |
79072805 | 2246 | |
a0d0e21e LW |
2247 | PP(pp_negate) |
2248 | { | |
6f1401dc DM |
2249 | dVAR; dSP; dTARGET; |
2250 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
a0d0e21e | 2251 | { |
6f1401dc | 2252 | SV * const sv = TOPs; |
1b6737cc | 2253 | const int flags = SvFLAGS(sv); |
a5b92898 | 2254 | |
886a4465 | 2255 | if( !SvNIOK( sv ) && looks_like_number( sv ) ){ |
a5b92898 RB |
2256 | SvIV_please( sv ); |
2257 | } | |
2258 | ||
28e5dec8 JH |
2259 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
2260 | /* It's publicly an integer, or privately an integer-not-float */ | |
2261 | oops_its_an_int: | |
9b0e499b GS |
2262 | if (SvIsUV(sv)) { |
2263 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2264 | /* 2s complement assumption. */ |
9b0e499b GS |
2265 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
2266 | RETURN; | |
2267 | } | |
2268 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2269 | SETi(-SvIVX(sv)); |
9b0e499b GS |
2270 | RETURN; |
2271 | } | |
2272 | } | |
2273 | else if (SvIVX(sv) != IV_MIN) { | |
2274 | SETi(-SvIVX(sv)); | |
2275 | RETURN; | |
2276 | } | |
28e5dec8 JH |
2277 | #ifdef PERL_PRESERVE_IVUV |
2278 | else { | |
2279 | SETu((UV)IV_MIN); | |
2280 | RETURN; | |
2281 | } | |
2282 | #endif | |
9b0e499b GS |
2283 | } |
2284 | if (SvNIOKp(sv)) | |
6f1401dc | 2285 | SETn(-SvNV_nomg(sv)); |
4633a7c4 | 2286 | else if (SvPOKp(sv)) { |
a0d0e21e | 2287 | STRLEN len; |
6f1401dc | 2288 | const char * const s = SvPV_nomg_const(sv, len); |
bbce6d69 | 2289 | if (isIDFIRST(*s)) { |
76f68e9b | 2290 | sv_setpvs(TARG, "-"); |
a0d0e21e | 2291 | sv_catsv(TARG, sv); |
79072805 | 2292 | } |
a0d0e21e | 2293 | else if (*s == '+' || *s == '-') { |
6f1401dc DM |
2294 | sv_setsv_nomg(TARG, sv); |
2295 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
79072805 | 2296 | } |
8eb28a70 | 2297 | else if (DO_UTF8(sv)) { |
6f1401dc | 2298 | SvIV_please_nomg(sv); |
8eb28a70 JH |
2299 | if (SvIOK(sv)) |
2300 | goto oops_its_an_int; | |
2301 | if (SvNOK(sv)) | |
6f1401dc | 2302 | sv_setnv(TARG, -SvNV_nomg(sv)); |
8eb28a70 | 2303 | else { |
76f68e9b | 2304 | sv_setpvs(TARG, "-"); |
8eb28a70 JH |
2305 | sv_catsv(TARG, sv); |
2306 | } | |
834a4ddd | 2307 | } |
28e5dec8 | 2308 | else { |
6f1401dc | 2309 | SvIV_please_nomg(sv); |
8eb28a70 JH |
2310 | if (SvIOK(sv)) |
2311 | goto oops_its_an_int; | |
6f1401dc | 2312 | sv_setnv(TARG, -SvNV_nomg(sv)); |
28e5dec8 | 2313 | } |
a0d0e21e | 2314 | SETTARG; |
79072805 | 2315 | } |
4633a7c4 | 2316 | else |
6f1401dc | 2317 | SETn(-SvNV_nomg(sv)); |
79072805 | 2318 | } |
a0d0e21e | 2319 | RETURN; |
79072805 LW |
2320 | } |
2321 | ||
a0d0e21e | 2322 | PP(pp_not) |
79072805 | 2323 | { |
6f1401dc DM |
2324 | dVAR; dSP; |
2325 | tryAMAGICun_MG(not_amg, AMGf_set); | |
06c841cf | 2326 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
a0d0e21e | 2327 | return NORMAL; |
79072805 LW |
2328 | } |
2329 | ||
a0d0e21e | 2330 | PP(pp_complement) |
79072805 | 2331 | { |
6f1401dc | 2332 | dVAR; dSP; dTARGET; |
a42d0242 | 2333 | tryAMAGICun_MG(compl_amg, AMGf_numeric); |
a0d0e21e LW |
2334 | { |
2335 | dTOPss; | |
4633a7c4 | 2336 | if (SvNIOKp(sv)) { |
d0ba1bd2 | 2337 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2338 | const IV i = ~SvIV_nomg(sv); |
972b05a9 | 2339 | SETi(i); |
d0ba1bd2 JH |
2340 | } |
2341 | else { | |
1b6737cc | 2342 | const UV u = ~SvUV_nomg(sv); |
972b05a9 | 2343 | SETu(u); |
d0ba1bd2 | 2344 | } |
a0d0e21e LW |
2345 | } |
2346 | else { | |
51723571 | 2347 | register U8 *tmps; |
55497cff | 2348 | register I32 anum; |
a0d0e21e LW |
2349 | STRLEN len; |
2350 | ||
10516c54 | 2351 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
891f9566 | 2352 | sv_setsv_nomg(TARG, sv); |
6f1401dc | 2353 | tmps = (U8*)SvPV_force_nomg(TARG, len); |
a0d0e21e | 2354 | anum = len; |
1d68d6cd | 2355 | if (SvUTF8(TARG)) { |
a1ca4561 | 2356 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd | 2357 | STRLEN targlen = 0; |
ba210ebe | 2358 | STRLEN l; |
a1ca4561 YST |
2359 | UV nchar = 0; |
2360 | UV nwide = 0; | |
01f6e806 | 2361 | U8 * const send = tmps + len; |
74d49cd0 TS |
2362 | U8 * const origtmps = tmps; |
2363 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
1d68d6cd | 2364 | |
1d68d6cd | 2365 | while (tmps < send) { |
74d49cd0 TS |
2366 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2367 | tmps += l; | |
5bbb0b5a | 2368 | targlen += UNISKIP(~c); |
a1ca4561 YST |
2369 | nchar++; |
2370 | if (c > 0xff) | |
2371 | nwide++; | |
1d68d6cd SC |
2372 | } |
2373 | ||
2374 | /* Now rewind strings and write them. */ | |
74d49cd0 | 2375 | tmps = origtmps; |
a1ca4561 YST |
2376 | |
2377 | if (nwide) { | |
01f6e806 AL |
2378 | U8 *result; |
2379 | U8 *p; | |
2380 | ||
74d49cd0 | 2381 | Newx(result, targlen + 1, U8); |
01f6e806 | 2382 | p = result; |
a1ca4561 | 2383 | while (tmps < send) { |
74d49cd0 TS |
2384 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2385 | tmps += l; | |
01f6e806 | 2386 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 | 2387 | } |
01f6e806 | 2388 | *p = '\0'; |
c1c21316 NC |
2389 | sv_usepvn_flags(TARG, (char*)result, targlen, |
2390 | SV_HAS_TRAILING_NUL); | |
a1ca4561 YST |
2391 | SvUTF8_on(TARG); |
2392 | } | |
2393 | else { | |
01f6e806 AL |
2394 | U8 *result; |
2395 | U8 *p; | |
2396 | ||
74d49cd0 | 2397 | Newx(result, nchar + 1, U8); |
01f6e806 | 2398 | p = result; |
a1ca4561 | 2399 | while (tmps < send) { |
74d49cd0 TS |
2400 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2401 | tmps += l; | |
01f6e806 | 2402 | *p++ = ~c; |
a1ca4561 | 2403 | } |
01f6e806 | 2404 | *p = '\0'; |
c1c21316 | 2405 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
d0a21e00 | 2406 | SvUTF8_off(TARG); |
1d68d6cd | 2407 | } |
ec93b65f | 2408 | SETTARG; |
1d68d6cd SC |
2409 | RETURN; |
2410 | } | |
a0d0e21e | 2411 | #ifdef LIBERAL |
51723571 JH |
2412 | { |
2413 | register long *tmpl; | |
2414 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
2415 | *tmps = ~*tmps; | |
2416 | tmpl = (long*)tmps; | |
bb7a0f54 | 2417 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2418 | *tmpl = ~*tmpl; |
2419 | tmps = (U8*)tmpl; | |
2420 | } | |
a0d0e21e LW |
2421 | #endif |
2422 | for ( ; anum > 0; anum--, tmps++) | |
2423 | *tmps = ~*tmps; | |
ec93b65f | 2424 | SETTARG; |
a0d0e21e LW |
2425 | } |
2426 | RETURN; | |
2427 | } | |
79072805 LW |
2428 | } |
2429 | ||
a0d0e21e LW |
2430 | /* integer versions of some of the above */ |
2431 | ||
a0d0e21e | 2432 | PP(pp_i_multiply) |
79072805 | 2433 | { |
6f1401dc DM |
2434 | dVAR; dSP; dATARGET; |
2435 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
a0d0e21e | 2436 | { |
6f1401dc | 2437 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2438 | SETi( left * right ); |
2439 | RETURN; | |
2440 | } | |
79072805 LW |
2441 | } |
2442 | ||
a0d0e21e | 2443 | PP(pp_i_divide) |
79072805 | 2444 | { |
85935d8e | 2445 | IV num; |
6f1401dc DM |
2446 | dVAR; dSP; dATARGET; |
2447 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
a0d0e21e | 2448 | { |
6f1401dc | 2449 | dPOPTOPssrl; |
85935d8e | 2450 | IV value = SvIV_nomg(right); |
a0d0e21e | 2451 | if (value == 0) |
ece1bcef | 2452 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2453 | num = SvIV_nomg(left); |
a0cec769 YST |
2454 | |
2455 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2456 | if (value == -1) | |
2457 | value = - num; | |
2458 | else | |
2459 | value = num / value; | |
6f1401dc | 2460 | SETi(value); |
a0d0e21e LW |
2461 | RETURN; |
2462 | } | |
79072805 LW |
2463 | } |
2464 | ||
befad5d1 | 2465 | #if defined(__GLIBC__) && IVSIZE == 8 |
224ec323 JH |
2466 | STATIC |
2467 | PP(pp_i_modulo_0) | |
befad5d1 NC |
2468 | #else |
2469 | PP(pp_i_modulo) | |
2470 | #endif | |
224ec323 JH |
2471 | { |
2472 | /* This is the vanilla old i_modulo. */ | |
6f1401dc DM |
2473 | dVAR; dSP; dATARGET; |
2474 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2475 | { |
6f1401dc | 2476 | dPOPTOPiirl_nomg; |
224ec323 JH |
2477 | if (!right) |
2478 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2479 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2480 | if (right == -1) | |
2481 | SETi( 0 ); | |
2482 | else | |
2483 | SETi( left % right ); | |
224ec323 JH |
2484 | RETURN; |
2485 | } | |
2486 | } | |
2487 | ||
11010fa3 | 2488 | #if defined(__GLIBC__) && IVSIZE == 8 |
224ec323 JH |
2489 | STATIC |
2490 | PP(pp_i_modulo_1) | |
befad5d1 | 2491 | |
224ec323 | 2492 | { |
224ec323 | 2493 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2494 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2495 | * See below for pp_i_modulo. */ |
6f1401dc DM |
2496 | dVAR; dSP; dATARGET; |
2497 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2498 | { |
6f1401dc | 2499 | dPOPTOPiirl_nomg; |
224ec323 JH |
2500 | if (!right) |
2501 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2502 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2503 | if (right == -1) | |
2504 | SETi( 0 ); | |
2505 | else | |
2506 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2507 | RETURN; |
2508 | } | |
224ec323 JH |
2509 | } |
2510 | ||
a0d0e21e | 2511 | PP(pp_i_modulo) |
79072805 | 2512 | { |
6f1401dc DM |
2513 | dVAR; dSP; dATARGET; |
2514 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2515 | { |
6f1401dc | 2516 | dPOPTOPiirl_nomg; |
224ec323 JH |
2517 | if (!right) |
2518 | DIE(aTHX_ "Illegal modulus zero"); | |
2519 | /* The assumption is to use hereafter the old vanilla version... */ | |
2520 | PL_op->op_ppaddr = | |
2521 | PL_ppaddr[OP_I_MODULO] = | |
1c127fab | 2522 | Perl_pp_i_modulo_0; |
224ec323 JH |
2523 | /* .. but if we have glibc, we might have a buggy _moddi3 |
2524 | * (at least glicb 2.2.5 is known to have this bug), in other | |
2525 | * words our integer modulus with negative quad as the second | |
2526 | * argument might be broken. Test for this and re-patch the | |
2527 | * opcode dispatch table if that is the case, remembering to | |
2528 | * also apply the workaround so that this first round works | |
2529 | * right, too. See [perl #9402] for more information. */ | |
224ec323 JH |
2530 | { |
2531 | IV l = 3; | |
2532 | IV r = -10; | |
2533 | /* Cannot do this check with inlined IV constants since | |
2534 | * that seems to work correctly even with the buggy glibc. */ | |
2535 | if (l % r == -3) { | |
2536 | /* Yikes, we have the bug. | |
2537 | * Patch in the workaround version. */ | |
2538 | PL_op->op_ppaddr = | |
2539 | PL_ppaddr[OP_I_MODULO] = | |
2540 | &Perl_pp_i_modulo_1; | |
2541 | /* Make certain we work right this time, too. */ | |
32fdb065 | 2542 | right = PERL_ABS(right); |
224ec323 JH |
2543 | } |
2544 | } | |
a0cec769 YST |
2545 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2546 | if (right == -1) | |
2547 | SETi( 0 ); | |
2548 | else | |
2549 | SETi( left % right ); | |
224ec323 JH |
2550 | RETURN; |
2551 | } | |
79072805 | 2552 | } |
befad5d1 | 2553 | #endif |
79072805 | 2554 | |
a0d0e21e | 2555 | PP(pp_i_add) |
79072805 | 2556 | { |
6f1401dc DM |
2557 | dVAR; dSP; dATARGET; |
2558 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
a0d0e21e | 2559 | { |
6f1401dc | 2560 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2561 | SETi( left + right ); |
2562 | RETURN; | |
79072805 | 2563 | } |
79072805 LW |
2564 | } |
2565 | ||
a0d0e21e | 2566 | PP(pp_i_subtract) |
79072805 | 2567 | { |
6f1401dc DM |
2568 | dVAR; dSP; dATARGET; |
2569 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
a0d0e21e | 2570 | { |
6f1401dc | 2571 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2572 | SETi( left - right ); |
2573 | RETURN; | |
79072805 | 2574 | } |
79072805 LW |
2575 | } |
2576 | ||
a0d0e21e | 2577 | PP(pp_i_lt) |
79072805 | 2578 | { |
6f1401dc DM |
2579 | dVAR; dSP; |
2580 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
a0d0e21e | 2581 | { |
96b6b87f | 2582 | dPOPTOPiirl_nomg; |
54310121 | 2583 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2584 | RETURN; |
2585 | } | |
79072805 LW |
2586 | } |
2587 | ||
a0d0e21e | 2588 | PP(pp_i_gt) |
79072805 | 2589 | { |
6f1401dc DM |
2590 | dVAR; dSP; |
2591 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
a0d0e21e | 2592 | { |
96b6b87f | 2593 | dPOPTOPiirl_nomg; |
54310121 | 2594 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2595 | RETURN; |
2596 | } | |
79072805 LW |
2597 | } |
2598 | ||
a0d0e21e | 2599 | PP(pp_i_le) |
79072805 | 2600 | { |
6f1401dc DM |
2601 | dVAR; dSP; |
2602 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
a0d0e21e | 2603 | { |
96b6b87f | 2604 | dPOPTOPiirl_nomg; |
54310121 | 2605 | SETs(boolSV(left <= right)); |
a0d0e21e | 2606 | RETURN; |
85e6fe83 | 2607 | } |
79072805 LW |
2608 | } |
2609 | ||
a0d0e21e | 2610 | PP(pp_i_ge) |
79072805 | 2611 | { |
6f1401dc DM |
2612 | dVAR; dSP; |
2613 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
a0d0e21e | 2614 | { |
96b6b87f | 2615 | dPOPTOPiirl_nomg; |
54310121 | 2616 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2617 | RETURN; |
2618 | } | |
79072805 LW |
2619 | } |
2620 | ||
a0d0e21e | 2621 | PP(pp_i_eq) |
79072805 | 2622 | { |
6f1401dc DM |
2623 | dVAR; dSP; |
2624 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
a0d0e21e | 2625 | { |
96b6b87f | 2626 | dPOPTOPiirl_nomg; |
54310121 | 2627 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2628 | RETURN; |
2629 | } | |
79072805 LW |
2630 | } |
2631 | ||
a0d0e21e | 2632 | PP(pp_i_ne) |
79072805 | 2633 | { |
6f1401dc DM |
2634 | dVAR; dSP; |
2635 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
a0d0e21e | 2636 | { |
96b6b87f | 2637 | dPOPTOPiirl_nomg; |
54310121 | 2638 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2639 | RETURN; |
2640 | } | |
79072805 LW |
2641 | } |
2642 | ||
a0d0e21e | 2643 | PP(pp_i_ncmp) |
79072805 | 2644 | { |
6f1401dc DM |
2645 | dVAR; dSP; dTARGET; |
2646 | tryAMAGICbin_MG(ncmp_amg, 0); | |
a0d0e21e | 2647 | { |
96b6b87f | 2648 | dPOPTOPiirl_nomg; |
a0d0e21e | 2649 | I32 value; |
79072805 | 2650 | |
a0d0e21e | 2651 | if (left > right) |
79072805 | 2652 | value = 1; |
a0d0e21e | 2653 | else if (left < right) |
79072805 | 2654 | value = -1; |
a0d0e21e | 2655 | else |
79072805 | 2656 | value = 0; |
a0d0e21e LW |
2657 | SETi(value); |
2658 | RETURN; | |
79072805 | 2659 | } |
85e6fe83 LW |
2660 | } |
2661 | ||
2662 | PP(pp_i_negate) | |
2663 | { | |
6f1401dc DM |
2664 | dVAR; dSP; dTARGET; |
2665 | tryAMAGICun_MG(neg_amg, 0); | |
2666 | { | |
2667 | SV * const sv = TOPs; | |
2668 | IV const i = SvIV_nomg(sv); | |
2669 | SETi(-i); | |
2670 | RETURN; | |
2671 | } | |
85e6fe83 LW |
2672 | } |
2673 | ||
79072805 LW |
2674 | /* High falutin' math. */ |
2675 | ||
2676 | PP(pp_atan2) | |
2677 | { | |
6f1401dc DM |
2678 | dVAR; dSP; dTARGET; |
2679 | tryAMAGICbin_MG(atan2_amg, 0); | |
a0d0e21e | 2680 | { |
096c060c | 2681 | dPOPTOPnnrl_nomg; |
a1021d57 | 2682 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2683 | RETURN; |
2684 | } | |
79072805 LW |
2685 | } |
2686 | ||
2687 | PP(pp_sin) | |
2688 | { | |
71302fe3 NC |
2689 | dVAR; dSP; dTARGET; |
2690 | int amg_type = sin_amg; | |
2691 | const char *neg_report = NULL; | |
bc81784a | 2692 | NV (*func)(NV) = Perl_sin; |
71302fe3 NC |
2693 | const int op_type = PL_op->op_type; |
2694 | ||
2695 | switch (op_type) { | |
2696 | case OP_COS: | |
2697 | amg_type = cos_amg; | |
bc81784a | 2698 | func = Perl_cos; |
71302fe3 NC |
2699 | break; |
2700 | case OP_EXP: | |
2701 | amg_type = exp_amg; | |
bc81784a | 2702 | func = Perl_exp; |
71302fe3 NC |
2703 | break; |
2704 | case OP_LOG: | |
2705 | amg_type = log_amg; | |
bc81784a | 2706 | func = Perl_log; |
71302fe3 NC |
2707 | neg_report = "log"; |
2708 | break; | |
2709 | case OP_SQRT: | |
2710 | amg_type = sqrt_amg; | |
bc81784a | 2711 | func = Perl_sqrt; |
71302fe3 NC |
2712 | neg_report = "sqrt"; |
2713 | break; | |
a0d0e21e | 2714 | } |
79072805 | 2715 | |
6f1401dc DM |
2716 | |
2717 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2718 | { |
6f1401dc DM |
2719 | SV * const arg = POPs; |
2720 | const NV value = SvNV_nomg(arg); | |
71302fe3 NC |
2721 | if (neg_report) { |
2722 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
2723 | SET_NUMERIC_STANDARD(); | |
2724 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
2725 | } | |
2726 | } | |
2727 | XPUSHn(func(value)); | |
a0d0e21e LW |
2728 | RETURN; |
2729 | } | |
79072805 LW |
2730 | } |
2731 | ||
56cb0a1c AD |
2732 | /* Support Configure command-line overrides for rand() functions. |
2733 | After 5.005, perhaps we should replace this by Configure support | |
2734 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2735 | compatibility by calling rand() but allow the user to override it. | |
2736 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2737 | */ | |
85ab1d1d JH |
2738 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2739 | in addition to rand(). So the overrides should not be needed any more. | |
2740 | --Jarkko Hietaniemi 27 September 1998 | |
2741 | */ | |
2742 | ||
2743 | #ifndef HAS_DRAND48_PROTO | |
20ce7b12 | 2744 | extern double drand48 (void); |
56cb0a1c AD |
2745 | #endif |
2746 | ||
79072805 LW |
2747 | PP(pp_rand) |
2748 | { | |
97aff369 | 2749 | dVAR; dSP; dTARGET; |
65202027 | 2750 | NV value; |
79072805 LW |
2751 | if (MAXARG < 1) |
2752 | value = 1.0; | |
94ec06bc FC |
2753 | else if (!TOPs) { |
2754 | value = 1.0; (void)POPs; | |
2755 | } | |
79072805 LW |
2756 | else |
2757 | value = POPn; | |
2758 | if (value == 0.0) | |
2759 | value = 1.0; | |
80252599 | 2760 | if (!PL_srand_called) { |
85ab1d1d | 2761 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2762 | PL_srand_called = TRUE; |
93dc8474 | 2763 | } |
85ab1d1d | 2764 | value *= Drand01(); |
79072805 LW |
2765 | XPUSHn(value); |
2766 | RETURN; | |
2767 | } | |
2768 | ||
2769 | PP(pp_srand) | |
2770 | { | |
83832992 | 2771 | dVAR; dSP; dTARGET; |
d22667bf | 2772 | const UV anum = (MAXARG < 1 || (!TOPs && !POPs)) ? seed() : POPu; |
85ab1d1d | 2773 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2774 | PL_srand_called = TRUE; |
da1010ec NC |
2775 | if (anum) |
2776 | XPUSHu(anum); | |
2777 | else { | |
2778 | /* Historically srand always returned true. We can avoid breaking | |
2779 | that like this: */ | |
2780 | sv_setpvs(TARG, "0 but true"); | |
2781 | XPUSHTARG; | |
2782 | } | |
83832992 | 2783 | RETURN; |
79072805 LW |
2784 | } |
2785 | ||
79072805 LW |
2786 | PP(pp_int) |
2787 | { | |
6f1401dc DM |
2788 | dVAR; dSP; dTARGET; |
2789 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
774d564b | 2790 | { |
6f1401dc DM |
2791 | SV * const sv = TOPs; |
2792 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2793 | /* XXX it's arguable that compiler casting to IV might be subtly |
2794 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2795 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2796 | relying on floating point to be accurate is a bug. */ | |
2797 | ||
c781a409 | 2798 | if (!SvOK(sv)) { |
922c4365 | 2799 | SETu(0); |
c781a409 RD |
2800 | } |
2801 | else if (SvIOK(sv)) { | |
2802 | if (SvIsUV(sv)) | |
6f1401dc | 2803 | SETu(SvUV_nomg(sv)); |
c781a409 | 2804 | else |
28e5dec8 | 2805 | SETi(iv); |
c781a409 | 2806 | } |
c781a409 | 2807 | else { |
6f1401dc | 2808 | const NV value = SvNV_nomg(sv); |
1048ea30 | 2809 | if (value >= 0.0) { |
28e5dec8 JH |
2810 | if (value < (NV)UV_MAX + 0.5) { |
2811 | SETu(U_V(value)); | |
2812 | } else { | |
059a1014 | 2813 | SETn(Perl_floor(value)); |
28e5dec8 | 2814 | } |
1048ea30 | 2815 | } |
28e5dec8 JH |
2816 | else { |
2817 | if (value > (NV)IV_MIN - 0.5) { | |
2818 | SETi(I_V(value)); | |
2819 | } else { | |
1bbae031 | 2820 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
2821 | } |
2822 | } | |
774d564b | 2823 | } |
79072805 | 2824 | } |
79072805 LW |
2825 | RETURN; |
2826 | } | |
2827 | ||
463ee0b2 LW |
2828 | PP(pp_abs) |
2829 | { | |
6f1401dc DM |
2830 | dVAR; dSP; dTARGET; |
2831 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
a0d0e21e | 2832 | { |
6f1401dc | 2833 | SV * const sv = TOPs; |
28e5dec8 | 2834 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 2835 | const IV iv = SvIV_nomg(sv); |
a227d84d | 2836 | |
800401ee | 2837 | if (!SvOK(sv)) { |
922c4365 | 2838 | SETu(0); |
800401ee JH |
2839 | } |
2840 | else if (SvIOK(sv)) { | |
28e5dec8 | 2841 | /* IVX is precise */ |
800401ee | 2842 | if (SvIsUV(sv)) { |
6f1401dc | 2843 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
2844 | } else { |
2845 | if (iv >= 0) { | |
2846 | SETi(iv); | |
2847 | } else { | |
2848 | if (iv != IV_MIN) { | |
2849 | SETi(-iv); | |
2850 | } else { | |
2851 | /* 2s complement assumption. Also, not really needed as | |
2852 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
2853 | SETu(IV_MIN); | |
2854 | } | |
a227d84d | 2855 | } |
28e5dec8 JH |
2856 | } |
2857 | } else{ | |
6f1401dc | 2858 | const NV value = SvNV_nomg(sv); |
774d564b | 2859 | if (value < 0.0) |
1b6737cc | 2860 | SETn(-value); |
a4474c9e DD |
2861 | else |
2862 | SETn(value); | |
774d564b | 2863 | } |
a0d0e21e | 2864 | } |
774d564b | 2865 | RETURN; |
463ee0b2 LW |
2866 | } |
2867 | ||
79072805 LW |
2868 | PP(pp_oct) |
2869 | { | |
97aff369 | 2870 | dVAR; dSP; dTARGET; |
5c144d81 | 2871 | const char *tmps; |
53305cf1 | 2872 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 2873 | STRLEN len; |
53305cf1 NC |
2874 | NV result_nv; |
2875 | UV result_uv; | |
1b6737cc | 2876 | SV* const sv = POPs; |
79072805 | 2877 | |
349d4f2f | 2878 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
2879 | if (DO_UTF8(sv)) { |
2880 | /* If Unicode, try to downgrade | |
2881 | * If not possible, croak. */ | |
1b6737cc | 2882 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
2883 | |
2884 | SvUTF8_on(tsv); | |
2885 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 2886 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 2887 | } |
daa2adfd NC |
2888 | if (PL_op->op_type == OP_HEX) |
2889 | goto hex; | |
2890 | ||
6f894ead | 2891 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 2892 | tmps++, len--; |
9e24b6e2 | 2893 | if (*tmps == '0') |
53305cf1 | 2894 | tmps++, len--; |
a674e8db | 2895 | if (*tmps == 'x' || *tmps == 'X') { |
daa2adfd | 2896 | hex: |
53305cf1 | 2897 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 2898 | } |
a674e8db | 2899 | else if (*tmps == 'b' || *tmps == 'B') |
53305cf1 | 2900 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 2901 | else |
53305cf1 NC |
2902 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
2903 | ||
2904 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
2905 | XPUSHn(result_nv); | |
2906 | } | |
2907 | else { | |
2908 | XPUSHu(result_uv); | |
2909 | } | |
79072805 LW |
2910 | RETURN; |
2911 | } | |
2912 | ||
2913 | /* String stuff. */ | |
2914 | ||
2915 | PP(pp_length) | |
2916 | { | |
97aff369 | 2917 | dVAR; dSP; dTARGET; |
0bd48802 | 2918 | SV * const sv = TOPs; |
a0ed51b3 | 2919 | |
656266fc | 2920 | if (SvGAMAGIC(sv)) { |
9f621bb0 NC |
2921 | /* For an overloaded or magic scalar, we can't know in advance if |
2922 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
2923 | it likes to cache the length. Maybe that should be a documented | |
2924 | feature of it. | |
92331800 NC |
2925 | */ |
2926 | STRLEN len; | |
9f621bb0 NC |
2927 | const char *const p |
2928 | = sv_2pv_flags(sv, &len, | |
2929 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
92331800 | 2930 | |
d88e091f | 2931 | if (!p) { |
9407f9c1 DL |
2932 | if (!SvPADTMP(TARG)) { |
2933 | sv_setsv(TARG, &PL_sv_undef); | |
2934 | SETTARG; | |
2935 | } | |
2936 | SETs(&PL_sv_undef); | |
d88e091f | 2937 | } |
9f621bb0 | 2938 | else if (DO_UTF8(sv)) { |
899be101 | 2939 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
92331800 NC |
2940 | } |
2941 | else | |
2942 | SETi(len); | |
656266fc | 2943 | } else if (SvOK(sv)) { |
9f621bb0 NC |
2944 | /* Neither magic nor overloaded. */ |
2945 | if (DO_UTF8(sv)) | |
2946 | SETi(sv_len_utf8(sv)); | |
2947 | else | |
2948 | SETi(sv_len(sv)); | |
656266fc | 2949 | } else { |
9407f9c1 DL |
2950 | if (!SvPADTMP(TARG)) { |
2951 | sv_setsv_nomg(TARG, &PL_sv_undef); | |
2952 | SETTARG; | |
2953 | } | |
2954 | SETs(&PL_sv_undef); | |
92331800 | 2955 | } |
79072805 LW |
2956 | RETURN; |
2957 | } | |
2958 | ||
2959 | PP(pp_substr) | |
2960 | { | |
97aff369 | 2961 | dVAR; dSP; dTARGET; |
79072805 | 2962 | SV *sv; |
463ee0b2 | 2963 | STRLEN curlen; |
9402d6ed | 2964 | STRLEN utf8_curlen; |
777f7c56 EB |
2965 | SV * pos_sv; |
2966 | IV pos1_iv; | |
2967 | int pos1_is_uv; | |
2968 | IV pos2_iv; | |
2969 | int pos2_is_uv; | |
2970 | SV * len_sv; | |
2971 | IV len_iv = 0; | |
2972 | int len_is_uv = 1; | |
050e6362 | 2973 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 2974 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 2975 | const char *tmps; |
9402d6ed | 2976 | SV *repl_sv = NULL; |
cbbf8932 | 2977 | const char *repl = NULL; |
7b8d334a | 2978 | STRLEN repl_len; |
7bc95ae1 | 2979 | int num_args = PL_op->op_private & 7; |
13e30c65 | 2980 | bool repl_need_utf8_upgrade = FALSE; |
9402d6ed | 2981 | bool repl_is_utf8 = FALSE; |
79072805 | 2982 | |
78f9721b SM |
2983 | if (num_args > 2) { |
2984 | if (num_args > 3) { | |
7bc95ae1 | 2985 | if((repl_sv = POPs)) { |
83003860 | 2986 | repl = SvPV_const(repl_sv, repl_len); |
bf32a30c | 2987 | repl_is_utf8 = DO_UTF8(repl_sv) && repl_len; |
7bc95ae1 FC |
2988 | } |
2989 | else num_args--; | |
2990 | } | |
2991 | if ((len_sv = POPs)) { | |
2992 | len_iv = SvIV(len_sv); | |
2993 | len_is_uv = SvIOK_UV(len_sv); | |
7b8d334a | 2994 | } |
7bc95ae1 | 2995 | else num_args--; |
5d82c453 | 2996 | } |
777f7c56 EB |
2997 | pos_sv = POPs; |
2998 | pos1_iv = SvIV(pos_sv); | |
2999 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3000 | sv = POPs; |
849ca7ee | 3001 | PUTBACK; |
9402d6ed JH |
3002 | if (repl_sv) { |
3003 | if (repl_is_utf8) { | |
3004 | if (!DO_UTF8(sv)) | |
3005 | sv_utf8_upgrade(sv); | |
3006 | } | |
13e30c65 JH |
3007 | else if (DO_UTF8(sv)) |
3008 | repl_need_utf8_upgrade = TRUE; | |
9402d6ed | 3009 | } |
5c144d81 | 3010 | tmps = SvPV_const(sv, curlen); |
7e2040f0 | 3011 | if (DO_UTF8(sv)) { |
9402d6ed JH |
3012 | utf8_curlen = sv_len_utf8(sv); |
3013 | if (utf8_curlen == curlen) | |
3014 | utf8_curlen = 0; | |
a0ed51b3 | 3015 | else |
9402d6ed | 3016 | curlen = utf8_curlen; |
a0ed51b3 | 3017 | } |
d1c2b58a | 3018 | else |
9402d6ed | 3019 | utf8_curlen = 0; |
a0ed51b3 | 3020 | |
e1dccc0d Z |
3021 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { |
3022 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3023 | pos1_iv += curlen; | |
777f7c56 | 3024 | } |
e1dccc0d Z |
3025 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) |
3026 | goto bound_fail; | |
777f7c56 EB |
3027 | |
3028 | if (num_args > 2) { | |
3029 | if (!len_is_uv && len_iv < 0) { | |
3030 | pos2_iv = curlen + len_iv; | |
3031 | if (curlen) | |
3032 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3033 | else | |
3034 | pos2_is_uv = 0; | |
3035 | } else { /* len_iv >= 0 */ | |
3036 | if (!pos1_is_uv && pos1_iv < 0) { | |
3037 | pos2_iv = pos1_iv + len_iv; | |
3038 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3039 | } else { | |
3040 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3041 | pos2_iv = curlen; | |
3042 | else | |
3043 | pos2_iv = pos1_iv+len_iv; | |
3044 | pos2_is_uv = 1; | |
3045 | } | |
5d82c453 | 3046 | } |
2304df62 | 3047 | } |
79072805 | 3048 | else { |
777f7c56 EB |
3049 | pos2_iv = curlen; |
3050 | pos2_is_uv = 1; | |
3051 | } | |
3052 | ||
3053 | if (!pos2_is_uv && pos2_iv < 0) { | |
3054 | if (!pos1_is_uv && pos1_iv < 0) | |
1c900557 | 3055 | goto bound_fail; |
777f7c56 EB |
3056 | pos2_iv = 0; |
3057 | } | |
3058 | else if (!pos1_is_uv && pos1_iv < 0) | |
3059 | pos1_iv = 0; | |
3060 | ||
3061 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3062 | pos2_iv = pos1_iv; | |
3063 | if ((UV)pos2_iv > curlen) | |
3064 | pos2_iv = curlen; | |
3065 | ||
3066 | { | |
3067 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3068 | const STRLEN pos = (STRLEN)( (UV)pos1_iv ); | |
3069 | const STRLEN len = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
777f7c56 | 3070 | STRLEN byte_len = len; |
d931b1be NC |
3071 | STRLEN byte_pos = utf8_curlen |
3072 | ? sv_pos_u2b_flags(sv, pos, &byte_len, SV_CONST_RETURN) : pos; | |
3073 | ||
2154eca7 EB |
3074 | if (lvalue && !repl) { |
3075 | SV * ret; | |
3076 | ||
3077 | if (!SvGMAGICAL(sv)) { | |
3078 | if (SvROK(sv)) { | |
3079 | SvPV_force_nolen(sv); | |
3080 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3081 | "Attempt to use reference as lvalue in substr"); | |
3082 | } | |
3083 | if (isGV_with_GP(sv)) | |
3084 | SvPV_force_nolen(sv); | |
3085 | else if (SvOK(sv)) /* is it defined ? */ | |
3086 | (void)SvPOK_only_UTF8(sv); | |
3087 | else | |
3088 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ | |
781e7547 | 3089 | } |
2154eca7 EB |
3090 | |
3091 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3092 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3093 | LvTYPE(ret) = 'x'; | |
3094 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3095 | LvTARGOFF(ret) = pos; | |
3096 | LvTARGLEN(ret) = len; | |
3097 | ||
3098 | SPAGAIN; | |
3099 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
3100 | RETURN; | |
781e7547 DM |
3101 | } |
3102 | ||
2154eca7 | 3103 | tmps += byte_pos; |
bbddc9e0 CS |
3104 | |
3105 | if (rvalue) { | |
3106 | SvTAINTED_off(TARG); /* decontaminate */ | |
3107 | SvUTF8_off(TARG); /* decontaminate */ | |
3108 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3109 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3110 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3111 | #endif |
bbddc9e0 CS |
3112 | if (utf8_curlen) |
3113 | SvUTF8_on(TARG); | |
3114 | } | |
2154eca7 | 3115 | |
f7928d6c | 3116 | if (repl) { |
13e30c65 JH |
3117 | SV* repl_sv_copy = NULL; |
3118 | ||
3119 | if (repl_need_utf8_upgrade) { | |
3120 | repl_sv_copy = newSVsv(repl_sv); | |
3121 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3122 | repl = SvPV_const(repl_sv_copy, repl_len); |
bf32a30c | 3123 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && repl_len; |
13e30c65 | 3124 | } |
502d9230 VP |
3125 | if (!SvOK(sv)) |
3126 | sv_setpvs(sv, ""); | |
777f7c56 | 3127 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
9402d6ed | 3128 | if (repl_is_utf8) |
f7928d6c | 3129 | SvUTF8_on(sv); |
ef8d46e8 | 3130 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3131 | } |
79072805 | 3132 | } |
849ca7ee | 3133 | SPAGAIN; |
bbddc9e0 CS |
3134 | if (rvalue) { |
3135 | SvSETMAGIC(TARG); | |
3136 | PUSHs(TARG); | |
3137 | } | |
79072805 | 3138 | RETURN; |
777f7c56 | 3139 | |
1c900557 | 3140 | bound_fail: |
777f7c56 EB |
3141 | if (lvalue || repl) |
3142 | Perl_croak(aTHX_ "substr outside of string"); | |
3143 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3144 | RETPUSHUNDEF; | |
79072805 LW |
3145 | } |
3146 | ||
3147 | PP(pp_vec) | |
3148 | { | |
2154eca7 | 3149 | dVAR; dSP; |
1b6737cc AL |
3150 | register const IV size = POPi; |
3151 | register const IV offset = POPi; | |
3152 | register SV * const src = POPs; | |
3153 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
2154eca7 | 3154 | SV * ret; |
a0d0e21e | 3155 | |
81e118e0 | 3156 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3157 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3158 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3159 | LvTYPE(ret) = 'v'; | |
3160 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3161 | LvTARGOFF(ret) = offset; | |
3162 | LvTARGLEN(ret) = size; | |
3163 | } | |
3164 | else { | |
3165 | dTARGET; | |
3166 | SvTAINTED_off(TARG); /* decontaminate */ | |
3167 | ret = TARG; | |
79072805 LW |
3168 | } |
3169 | ||
2154eca7 EB |
3170 | sv_setuv(ret, do_vecget(src, offset, size)); |
3171 | PUSHs(ret); | |
79072805 LW |
3172 | RETURN; |
3173 | } | |
3174 | ||
3175 | PP(pp_index) | |
3176 | { | |
97aff369 | 3177 | dVAR; dSP; dTARGET; |
79072805 LW |
3178 | SV *big; |
3179 | SV *little; | |
c445ea15 | 3180 | SV *temp = NULL; |
ad66a58c | 3181 | STRLEN biglen; |
2723d216 | 3182 | STRLEN llen = 0; |
79072805 LW |
3183 | I32 offset; |
3184 | I32 retval; | |
73ee8be2 NC |
3185 | const char *big_p; |
3186 | const char *little_p; | |
2f040f7f NC |
3187 | bool big_utf8; |
3188 | bool little_utf8; | |
2723d216 | 3189 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3190 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3191 | |
e1dccc0d Z |
3192 | if (threeargs) |
3193 | offset = POPi; | |
79072805 LW |
3194 | little = POPs; |
3195 | big = POPs; | |
73ee8be2 NC |
3196 | big_p = SvPV_const(big, biglen); |
3197 | little_p = SvPV_const(little, llen); | |
3198 | ||
e609e586 NC |
3199 | big_utf8 = DO_UTF8(big); |
3200 | little_utf8 = DO_UTF8(little); | |
3201 | if (big_utf8 ^ little_utf8) { | |
3202 | /* One needs to be upgraded. */ | |
2f040f7f NC |
3203 | if (little_utf8 && !PL_encoding) { |
3204 | /* Well, maybe instead we might be able to downgrade the small | |
3205 | string? */ | |
1eced8f8 | 3206 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3207 | &little_utf8); |
3208 | if (little_utf8) { | |
3209 | /* If the large string is ISO-8859-1, and it's not possible to | |
3210 | convert the small string to ISO-8859-1, then there is no | |
3211 | way that it could be found anywhere by index. */ | |
3212 | retval = -1; | |
3213 | goto fail; | |
3214 | } | |
e609e586 | 3215 | |
2f040f7f NC |
3216 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3217 | to ensure it will get free()d */ | |
3218 | little = temp = newSV(0); | |
73ee8be2 NC |
3219 | sv_usepvn(temp, pv, llen); |
3220 | little_p = SvPVX(little); | |
e609e586 | 3221 | } else { |
73ee8be2 NC |
3222 | temp = little_utf8 |
3223 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
2f040f7f NC |
3224 | |
3225 | if (PL_encoding) { | |
3226 | sv_recode_to_utf8(temp, PL_encoding); | |
3227 | } else { | |
3228 | sv_utf8_upgrade(temp); | |
3229 | } | |
3230 | if (little_utf8) { | |
3231 | big = temp; | |
3232 | big_utf8 = TRUE; | |
73ee8be2 | 3233 | big_p = SvPV_const(big, biglen); |
2f040f7f NC |
3234 | } else { |
3235 | little = temp; | |
73ee8be2 | 3236 | little_p = SvPV_const(little, llen); |
2f040f7f | 3237 | } |
e609e586 NC |
3238 | } |
3239 | } | |
73ee8be2 NC |
3240 | if (SvGAMAGIC(big)) { |
3241 | /* Life just becomes a lot easier if I use a temporary here. | |
3242 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3243 | will trigger magic and overloading again, as will fbm_instr() | |
3244 | */ | |
59cd0e26 NC |
3245 | big = newSVpvn_flags(big_p, biglen, |
3246 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3247 | big_p = SvPVX(big); |
3248 | } | |
e4e44778 | 3249 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3250 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3251 | warn on undef, and we've already triggered a warning with the | |
3252 | SvPV_const some lines above. We can't remove that, as we need to | |
3253 | call some SvPV to trigger overloading early and find out if the | |
3254 | string is UTF-8. | |
3255 | This is all getting to messy. The API isn't quite clean enough, | |
3256 | because data access has side effects. | |
3257 | */ | |
59cd0e26 NC |
3258 | little = newSVpvn_flags(little_p, llen, |
3259 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3260 | little_p = SvPVX(little); |
3261 | } | |
e609e586 | 3262 | |
d3e26383 | 3263 | if (!threeargs) |
2723d216 | 3264 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3265 | else { |
ad66a58c | 3266 | if (big_utf8 && offset > 0) |
a0ed51b3 | 3267 | sv_pos_u2b(big, &offset, 0); |
73ee8be2 NC |
3268 | if (!is_index) |
3269 | offset += llen; | |
a0ed51b3 | 3270 | } |
79072805 LW |
3271 | if (offset < 0) |
3272 | offset = 0; | |
ad66a58c NC |
3273 | else if (offset > (I32)biglen) |
3274 | offset = biglen; | |
73ee8be2 NC |
3275 | if (!(little_p = is_index |
3276 | ? fbm_instr((unsigned char*)big_p + offset, | |
3277 | (unsigned char*)big_p + biglen, little, 0) | |
3278 | : rninstr(big_p, big_p + offset, | |
3279 | little_p, little_p + llen))) | |
a0ed51b3 | 3280 | retval = -1; |
ad66a58c | 3281 | else { |
73ee8be2 | 3282 | retval = little_p - big_p; |
ad66a58c NC |
3283 | if (retval > 0 && big_utf8) |
3284 | sv_pos_b2u(big, &retval); | |
3285 | } | |
ef8d46e8 | 3286 | SvREFCNT_dec(temp); |
2723d216 | 3287 | fail: |
e1dccc0d | 3288 | PUSHi(retval); |
79072805 LW |
3289 | RETURN; |
3290 | } | |
3291 | ||
3292 | PP(pp_sprintf) | |
3293 | { | |
97aff369 | 3294 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3295 | SvTAINTED_off(TARG); |
79072805 | 3296 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3297 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3298 | SP = ORIGMARK; |
3299 | PUSHTARG; | |
3300 | RETURN; | |
3301 | } | |
3302 | ||
79072805 LW |
3303 | PP(pp_ord) |
3304 | { | |
97aff369 | 3305 | dVAR; dSP; dTARGET; |
1eced8f8 | 3306 | |
7df053ec | 3307 | SV *argsv = POPs; |
ba210ebe | 3308 | STRLEN len; |
349d4f2f | 3309 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3310 | |
799ef3cb | 3311 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
1eced8f8 | 3312 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
799ef3cb | 3313 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
121910a4 JH |
3314 | argsv = tmpsv; |
3315 | } | |
79072805 | 3316 | |
872c91ae | 3317 | XPUSHu(DO_UTF8(argsv) ? |
89ebb4a3 | 3318 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
5fc32dea | 3319 | (UV)(*s & 0xff)); |
68795e93 | 3320 | |
79072805 LW |
3321 | RETURN; |
3322 | } | |
3323 | ||
463ee0b2 LW |
3324 | PP(pp_chr) |
3325 | { | |
97aff369 | 3326 | dVAR; dSP; dTARGET; |
463ee0b2 | 3327 | char *tmps; |
8a064bd6 JH |
3328 | UV value; |
3329 | ||
3330 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
3331 | || | |
3332 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
3333 | if (IN_BYTES) { | |
3334 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
3335 | } else { | |
3336 | (void) POPs; /* Ignore the argument value. */ | |
3337 | value = UNICODE_REPLACEMENT; | |
3338 | } | |
3339 | } else { | |
3340 | value = POPu; | |
3341 | } | |
463ee0b2 | 3342 | |
862a34c6 | 3343 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3344 | |
0064a8a9 | 3345 | if (value > 255 && !IN_BYTES) { |
eb160463 | 3346 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
62961d2e | 3347 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3348 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3349 | *tmps = '\0'; |
3350 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3351 | SvUTF8_on(TARG); |
a0ed51b3 LW |
3352 | XPUSHs(TARG); |
3353 | RETURN; | |
3354 | } | |
3355 | ||
748a9306 | 3356 | SvGROW(TARG,2); |
463ee0b2 LW |
3357 | SvCUR_set(TARG, 1); |
3358 | tmps = SvPVX(TARG); | |
eb160463 | 3359 | *tmps++ = (char)value; |
748a9306 | 3360 | *tmps = '\0'; |
a0d0e21e | 3361 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3362 | |
88632417 | 3363 | if (PL_encoding && !IN_BYTES) { |
799ef3cb | 3364 | sv_recode_to_utf8(TARG, PL_encoding); |
88632417 JH |
3365 | tmps = SvPVX(TARG); |
3366 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
4c5ed6e2 TS |
3367 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
3368 | SvGROW(TARG, 2); | |
d5a15ac2 | 3369 | tmps = SvPVX(TARG); |
4c5ed6e2 TS |
3370 | SvCUR_set(TARG, 1); |
3371 | *tmps++ = (char)value; | |
88632417 | 3372 | *tmps = '\0'; |
4c5ed6e2 | 3373 | SvUTF8_off(TARG); |
88632417 JH |
3374 | } |
3375 | } | |
4c5ed6e2 | 3376 | |
463ee0b2 LW |
3377 | XPUSHs(TARG); |
3378 | RETURN; | |
3379 | } | |
3380 | ||
79072805 LW |
3381 | PP(pp_crypt) |
3382 | { | |
79072805 | 3383 | #ifdef HAS_CRYPT |
97aff369 | 3384 | dVAR; dSP; dTARGET; |
5f74f29c | 3385 | dPOPTOPssrl; |
85c16d83 | 3386 | STRLEN len; |
10516c54 | 3387 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3388 | |
85c16d83 | 3389 | if (DO_UTF8(left)) { |
2bc69dc4 | 3390 | /* If Unicode, try to downgrade. |
f2791508 JH |
3391 | * If not possible, croak. |
3392 | * Yes, we made this up. */ | |
1b6737cc | 3393 | SV* const tsv = sv_2mortal(newSVsv(left)); |
2bc69dc4 | 3394 | |
f2791508 | 3395 | SvUTF8_on(tsv); |
2bc69dc4 | 3396 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3397 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3398 | } |
05404ffe JH |
3399 | # ifdef USE_ITHREADS |
3400 | # ifdef HAS_CRYPT_R | |
3401 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3402 | /* This should be threadsafe because in ithreads there is only | |
3403 | * one thread per interpreter. If this would not be true, | |
3404 | * we would need a mutex to protect this malloc. */ | |
3405 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3406 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3407 | #if defined(__GLIBC__) || defined(__EMX__) | |
3408 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3409 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3410 | /* work around glibc-2.2.5 bug */ | |
3411 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3412 | } | |
05404ffe | 3413 | #endif |
6ab58e4d | 3414 | } |
05404ffe JH |
3415 | # endif /* HAS_CRYPT_R */ |
3416 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3417 | # ifdef FCRYPT |
83003860 | 3418 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3419 | # else |
83003860 | 3420 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3421 | # endif |
ec93b65f | 3422 | SETTARG; |
4808266b | 3423 | RETURN; |
79072805 | 3424 | #else |
b13b2135 | 3425 | DIE(aTHX_ |
79072805 LW |
3426 | "The crypt() function is unimplemented due to excessive paranoia."); |
3427 | #endif | |
79072805 LW |
3428 | } |
3429 | ||
00f254e2 KW |
3430 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3431 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3432 | ||
00f254e2 KW |
3433 | /* Below are several macros that generate code */ |
3434 | /* Generates code to store a unicode codepoint c that is known to occupy | |
3435 | * exactly two UTF-8 and UTF-EBCDIC bytes; it is stored into p and p+1. */ | |
3436 | #define STORE_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
3437 | STMT_START { \ | |
3438 | *(p) = UTF8_TWO_BYTE_HI(c); \ | |
3439 | *((p)+1) = UTF8_TWO_BYTE_LO(c); \ | |
3440 | } STMT_END | |
3441 | ||
3442 | /* Like STORE_UNI_TO_UTF8_TWO_BYTE, but advances p to point to the next | |
3443 | * available byte after the two bytes */ | |
3444 | #define CAT_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
3445 | STMT_START { \ | |
3446 | *(p)++ = UTF8_TWO_BYTE_HI(c); \ | |
3447 | *((p)++) = UTF8_TWO_BYTE_LO(c); \ | |
3448 | } STMT_END | |
3449 | ||
3450 | /* Generates code to store the upper case of latin1 character l which is known | |
3451 | * to have its upper case be non-latin1 into the two bytes p and p+1. There | |
3452 | * are only two characters that fit this description, and this macro knows | |
3453 | * about them, and that the upper case values fit into two UTF-8 or UTF-EBCDIC | |
3454 | * bytes */ | |
3455 | #define STORE_NON_LATIN1_UC(p, l) \ | |
3456 | STMT_START { \ | |
3457 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
3458 | STORE_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
3459 | } else { /* Must be the following letter */ \ | |
3460 | STORE_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
3461 | } \ | |
3462 | } STMT_END | |
3463 | ||
3464 | /* Like STORE_NON_LATIN1_UC, but advances p to point to the next available byte | |
3465 | * after the character stored */ | |
3466 | #define CAT_NON_LATIN1_UC(p, l) \ | |
3467 | STMT_START { \ | |
3468 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
3469 | CAT_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
3470 | } else { \ | |
3471 | CAT_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
3472 | } \ | |
3473 | } STMT_END | |
3474 | ||
3475 | /* Generates code to add the two UTF-8 bytes (probably u) that are the upper | |
3476 | * case of l into p and p+1. u must be the result of toUPPER_LATIN1_MOD(l), | |
3477 | * and must require two bytes to store it. Advances p to point to the next | |
3478 | * available position */ | |
3479 | #define CAT_TWO_BYTE_UNI_UPPER_MOD(p, l, u) \ | |
3480 | STMT_START { \ | |
3481 | if ((u) != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
3482 | CAT_UNI_TO_UTF8_TWO_BYTE((p), (u)); /* not special, just save it */ \ | |
3483 | } else if (l == LATIN_SMALL_LETTER_SHARP_S) { \ | |
3484 | *(p)++ = 'S'; *(p)++ = 'S'; /* upper case is 'SS' */ \ | |
3485 | } else {/* else is one of the other two special cases */ \ | |
3486 | CAT_NON_LATIN1_UC((p), (l)); \ | |
3487 | } \ | |
3488 | } STMT_END | |
3489 | ||
79072805 LW |
3490 | PP(pp_ucfirst) |
3491 | { | |
00f254e2 KW |
3492 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3493 | * changes. This means that possibly we can change in-place, ie., just | |
3494 | * take the source and change that one character and store it back, but not | |
3495 | * if read-only etc, or if the length changes */ | |
3496 | ||
97aff369 | 3497 | dVAR; |
39644a26 | 3498 | dSP; |
d54190f6 | 3499 | SV *source = TOPs; |
00f254e2 | 3500 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3501 | STRLEN need; |
3502 | SV *dest; | |
00f254e2 KW |
3503 | bool inplace; /* ? Convert first char only, in-place */ |
3504 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3505 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3506 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3507 | const U8 *s; |
3508 | U8 *d; | |
3509 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3510 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3511 | * stored as UTF-8 at s. */ | |
3512 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3513 | * lowercased) character stored in tmpbuf. May be either | |
3514 | * UTF-8 or not, but in either case is the number of bytes */ | |
d54190f6 NC |
3515 | |
3516 | SvGETMAGIC(source); | |
3517 | if (SvOK(source)) { | |
3518 | s = (const U8*)SvPV_nomg_const(source, slen); | |
3519 | } else { | |
0a0ffbce RGS |
3520 | if (ckWARN(WARN_UNINITIALIZED)) |
3521 | report_uninit(source); | |
1eced8f8 | 3522 | s = (const U8*)""; |
d54190f6 NC |
3523 | slen = 0; |
3524 | } | |
a0ed51b3 | 3525 | |
00f254e2 KW |
3526 | /* We may be able to get away with changing only the first character, in |
3527 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3528 | * not convert in-place. */ | |
3529 | inplace = SvPADTMP(source) && !SvREADONLY(source) && SvTEMP(source); | |
3530 | ||
3531 | /* First calculate what the changed first character should be. This affects | |
3532 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3533 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3534 | ||
3535 | if (! slen) { /* If empty */ | |
3536 | need = 1; /* still need a trailing NUL */ | |
3537 | } | |
3538 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3539 | doing_utf8 = TRUE; |
00f254e2 | 3540 | |
00f254e2 KW |
3541 | if (UTF8_IS_INVARIANT(*s)) { |
3542 | ||
3543 | /* An invariant source character is either ASCII or, in EBCDIC, an | |
3544 | * ASCII equivalent or a caseless C1 control. In both these cases, | |
3545 | * the lower and upper cases of any character are also invariants | |
3546 | * (and title case is the same as upper case). So it is safe to | |
3547 | * use the simple case change macros which avoid the overhead of | |
3548 | * the general functions. Note that if perl were to be extended to | |
3549 | * do locale handling in UTF-8 strings, this wouldn't be true in, | |
3550 | * for example, Lithuanian or Turkic. */ | |
3551 | *tmpbuf = (op_type == OP_LCFIRST) ? toLOWER(*s) : toUPPER(*s); | |
3552 | tculen = ulen = 1; | |
3553 | need = slen + 1; | |
12e9c124 | 3554 | } |
00f254e2 KW |
3555 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { |
3556 | U8 chr; | |
3557 | ||
3558 | /* Similarly, if the source character isn't invariant but is in the | |
3559 | * latin1 range (or EBCDIC equivalent thereof), we have the case | |
3560 | * changes compiled into perl, and can avoid the overhead of the | |
3561 | * general functions. In this range, the characters are stored as | |
3562 | * two UTF-8 bytes, and it so happens that any changed-case version | |
3563 | * is also two bytes (in both ASCIIish and EBCDIC machines). */ | |
3564 | tculen = ulen = 2; | |
3565 | need = slen + 1; | |
3566 | ||
3567 | /* Convert the two source bytes to a single Unicode code point | |
3568 | * value, change case and save for below */ | |
356979f4 | 3569 | chr = TWO_BYTE_UTF8_TO_UNI(*s, *(s+1)); |
00f254e2 KW |
3570 | if (op_type == OP_LCFIRST) { /* lower casing is easy */ |
3571 | U8 lower = toLOWER_LATIN1(chr); | |
3572 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, lower); | |
3573 | } | |
3574 | else { /* ucfirst */ | |
3575 | U8 upper = toUPPER_LATIN1_MOD(chr); | |
3576 | ||
3577 | /* Most of the latin1 range characters are well-behaved. Their | |
3578 | * title and upper cases are the same, and are also in the | |
3579 | * latin1 range. The macro above returns their upper (hence | |
3580 | * title) case, and all that need be done is to save the result | |
3581 | * for below. However, several characters are problematic, and | |
3582 | * have to be handled specially. The MOD in the macro name | |
3583 | * above means that these tricky characters all get mapped to | |
3584 | * the single character LATIN_SMALL_LETTER_Y_WITH_DIAERESIS. | |
3585 | * This mapping saves some tests for the majority of the | |
3586 | * characters */ | |
3587 | ||
3588 | if (upper != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { | |
3589 | ||
3590 | /* Not tricky. Just save it. */ | |
3591 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, upper); | |
3592 | } | |
3593 | else if (chr == LATIN_SMALL_LETTER_SHARP_S) { | |
3594 | ||
3595 | /* This one is tricky because it is two characters long, | |
3596 | * though the UTF-8 is still two bytes, so the stored | |
3597 | * length doesn't change */ | |
3598 | *tmpbuf = 'S'; /* The UTF-8 is 'Ss' */ | |
3599 | *(tmpbuf + 1) = 's'; | |
3600 | } | |
3601 | else { | |
3602 | ||
3603 | /* The other two have their title and upper cases the same, | |
3604 | * but are tricky because the changed-case characters | |
3605 | * aren't in the latin1 range. They, however, do fit into | |
3606 | * two UTF-8 bytes */ | |
3607 | STORE_NON_LATIN1_UC(tmpbuf, chr); | |
3608 | } | |
3609 | } | |
3610 | } | |
3611 | else { | |
00f254e2 KW |
3612 | |
3613 | /* Here, can't short-cut the general case */ | |
3614 | ||
3615 | utf8_to_uvchr(s, &ulen); | |
3616 | if (op_type == OP_UCFIRST) toTITLE_utf8(s, tmpbuf, &tculen); | |
3617 | else toLOWER_utf8(s, tmpbuf, &tculen); | |
3618 | ||
3619 | /* we can't do in-place if the length changes. */ | |
3620 | if (ulen != tculen) inplace = FALSE; | |
3621 | need = slen + 1 - ulen + tculen; | |
00f254e2 | 3622 | } |
d54190f6 | 3623 | } |
00f254e2 KW |
3624 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3625 | * latin1 is treated as caseless. Note that a locale takes | |
3626 | * precedence */ | |
3627 | tculen = 1; /* Most characters will require one byte, but this will | |
3628 | * need to be overridden for the tricky ones */ | |
3629 | need = slen + 1; | |
3630 | ||
3631 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3632 | |
00f254e2 KW |
3633 | /* lower case the first letter: no trickiness for any character */ |
3634 | *tmpbuf = (IN_LOCALE_RUNTIME) ? toLOWER_LC(*s) : | |
3635 | ((IN_UNI_8_BIT) ? toLOWER_LATIN1(*s) : toLOWER(*s)); | |
3636 | } | |
3637 | /* is ucfirst() */ | |
3638 | else if (IN_LOCALE_RUNTIME) { | |
3639 | *tmpbuf = toUPPER_LC(*s); /* This would be a bug if any locales | |
3640 | * have upper and title case different | |
3641 | */ | |
3642 | } | |
3643 | else if (! IN_UNI_8_BIT) { | |
3644 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3645 | * on EBCDIC machines whatever the | |
3646 | * native function does */ | |
3647 | } | |
3648 | else { /* is ucfirst non-UTF-8, not in locale, and cased latin1 */ | |
3649 | *tmpbuf = toUPPER_LATIN1_MOD(*s); | |
3650 | ||
3651 | /* tmpbuf now has the correct title case for all latin1 characters | |
3652 | * except for the several ones that have tricky handling. All | |
3653 | * of these are mapped by the MOD to the letter below. */ | |
3654 | if (*tmpbuf == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { | |
3655 | ||
3656 | /* The length is going to change, with all three of these, so | |
3657 | * can't replace just the first character */ | |
3658 | inplace = FALSE; | |
3659 | ||
3660 | /* We use the original to distinguish between these tricky | |
3661 | * cases */ | |
3662 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
3663 | /* Two character title case 'Ss', but can remain non-UTF-8 */ | |
3664 | need = slen + 2; | |
3665 | *tmpbuf = 'S'; | |
3666 | *(tmpbuf + 1) = 's'; /* Assert: length(tmpbuf) >= 2 */ | |
3667 | tculen = 2; | |
3668 | } | |
3669 | else { | |
d54190f6 | 3670 | |
00f254e2 KW |
3671 | /* The other two tricky ones have their title case outside |
3672 | * latin1. It is the same as their upper case. */ | |
3673 | doing_utf8 = TRUE; | |
3674 | STORE_NON_LATIN1_UC(tmpbuf, *s); | |
3675 | ||
3676 | /* The UTF-8 and UTF-EBCDIC lengths of both these characters | |
3677 | * and their upper cases is 2. */ | |
3678 | tculen = ulen = 2; | |
3679 | ||
3680 | /* The entire result will have to be in UTF-8. Assume worst | |
3681 | * case sizing in conversion. (all latin1 characters occupy | |
3682 | * at most two bytes in utf8) */ | |
3683 | convert_source_to_utf8 = TRUE; | |
3684 | need = slen * 2 + 1; | |
3685 | } | |
3686 | } /* End of is one of the three special chars */ | |
3687 | } /* End of use Unicode (Latin1) semantics */ | |
3688 | } /* End of changing the case of the first character */ | |
3689 | ||
3690 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3691 | * generate the result */ | |
3692 | if (inplace) { | |
3693 | ||
3694 | /* We can convert in place. This means we change just the first | |
3695 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3696 | dest = source; |
3697 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3698 | } else { | |
3699 | dTARGET; | |
3700 | ||
3701 | dest = TARG; | |
3702 | ||
00f254e2 KW |
3703 | /* Here, we can't convert in place; we earlier calculated how much |
3704 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3705 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3706 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3707 | (void)SvPOK_only(dest); |
3708 | ||
3709 | SETs(dest); | |
d54190f6 | 3710 | } |
44bc797b | 3711 | |
d54190f6 | 3712 | if (doing_utf8) { |
00f254e2 KW |
3713 | if (! inplace) { |
3714 | if (! convert_source_to_utf8) { | |
3715 | ||
3716 | /* Here both source and dest are in UTF-8, but have to create | |
3717 | * the entire output. We initialize the result to be the | |
3718 | * title/lower cased first character, and then append the rest | |
3719 | * of the string. */ | |
3720 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3721 | if (slen > ulen) { | |
3722 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3723 | } | |
3724 | } | |
3725 | else { | |
3726 | const U8 *const send = s + slen; | |
3727 | ||
3728 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3729 | * except we earlier UTF-8'd the first character of the source | |
3730 | * into tmpbuf. First put that into dest, and then append the | |
3731 | * rest of the source, converting it to UTF-8 as we go. */ | |
3732 | ||
3733 | /* Assert tculen is 2 here because the only two characters that | |
3734 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3735 | *d++ = *tmpbuf; | |
3736 | *d++ = *(tmpbuf + 1); | |
3737 | s++; /* We have just processed the 1st char */ | |
3738 | ||
3739 | for (; s < send; s++) { | |
3740 | d = uvchr_to_utf8(d, *s); | |
3741 | } | |
3742 | *d = '\0'; | |
3743 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3744 | } | |
d54190f6 | 3745 | SvUTF8_on(dest); |
a0ed51b3 | 3746 | } |
00f254e2 | 3747 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3748 | Copy(tmpbuf, d, tculen, U8); |
3749 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3750 | } |
a0ed51b3 | 3751 | } |
00f254e2 KW |
3752 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3753 | if (slen) { | |
2de3dbcc | 3754 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3755 | TAINT; |
d54190f6 | 3756 | SvTAINTED_on(dest); |
31351b04 | 3757 | } |
00f254e2 KW |
3758 | if (inplace) { /* in-place, only need to change the 1st char */ |
3759 | *d = *tmpbuf; | |
3760 | } | |
3761 | else { /* Not in-place */ | |
3762 | ||
3763 | /* Copy the case-changed character(s) from tmpbuf */ | |
3764 | Copy(tmpbuf, d, tculen, U8); | |
3765 | d += tculen - 1; /* Code below expects d to point to final | |
3766 | * character stored */ | |
3767 | } | |
3768 | } | |
3769 | else { /* empty source */ | |
3770 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3771 | *d = *s; |
3772 | } | |
3773 | ||
00f254e2 KW |
3774 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3775 | * the destination to retain that flag */ | |
d54190f6 NC |
3776 | if (SvUTF8(source)) |
3777 | SvUTF8_on(dest); | |
3778 | ||
00f254e2 | 3779 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3780 | /* This will copy the trailing NUL */ |
3781 | Copy(s + 1, d + 1, slen, U8); | |
3782 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3783 | } |
bbce6d69 | 3784 | } |
539689e7 FC |
3785 | if (dest != source && SvTAINTED(source)) |
3786 | SvTAINT(dest); | |
d54190f6 | 3787 | SvSETMAGIC(dest); |
79072805 LW |
3788 | RETURN; |
3789 | } | |
3790 | ||
67306194 NC |
3791 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3792 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3793 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3794 | PP(pp_uc) |
3795 | { | |
97aff369 | 3796 | dVAR; |
39644a26 | 3797 | dSP; |
67306194 | 3798 | SV *source = TOPs; |
463ee0b2 | 3799 | STRLEN len; |
67306194 NC |
3800 | STRLEN min; |
3801 | SV *dest; | |
3802 | const U8 *s; | |
3803 | U8 *d; | |
79072805 | 3804 | |
67306194 NC |
3805 | SvGETMAGIC(source); |
3806 | ||
3807 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
00f254e2 KW |
3808 | && SvTEMP(source) && !DO_UTF8(source) |
3809 | && (IN_LOCALE_RUNTIME || ! IN_UNI_8_BIT)) { | |
3810 | ||
3811 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3812 | * make the loop tight, so we overwrite the source with the dest before | |
3813 | * looking at it, and we need to look at the original source | |
3814 | * afterwards. There would also need to be code added to handle | |
3815 | * switching to not in-place in midstream if we run into characters | |
3816 | * that change the length. | |
3817 | */ | |
67306194 NC |
3818 | dest = source; |
3819 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3820 | min = len + 1; | |
3821 | } else { | |
a0ed51b3 | 3822 | dTARGET; |
a0ed51b3 | 3823 | |
67306194 | 3824 | dest = TARG; |
128c9517 | 3825 | |
67306194 NC |
3826 | /* The old implementation would copy source into TARG at this point. |
3827 | This had the side effect that if source was undef, TARG was now | |
3828 | an undefined SV with PADTMP set, and they don't warn inside | |
3829 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3830 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3831 | little games. */ | |
3832 | ||
3833 | if (SvOK(source)) { | |
3834 | s = (const U8*)SvPV_nomg_const(source, len); | |
3835 | } else { | |
0a0ffbce RGS |
3836 | if (ckWARN(WARN_UNINITIALIZED)) |
3837 | report_uninit(source); | |
1eced8f8 | 3838 | s = (const U8*)""; |
67306194 | 3839 | len = 0; |
a0ed51b3 | 3840 | } |
67306194 NC |
3841 | min = len + 1; |
3842 | ||
3843 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3844 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
3845 | (void)SvPOK_only(dest); |
3846 | ||
3847 | SETs(dest); | |
a0ed51b3 | 3848 | } |
31351b04 | 3849 | |
67306194 NC |
3850 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
3851 | to check DO_UTF8 again here. */ | |
3852 | ||
3853 | if (DO_UTF8(source)) { | |
3854 | const U8 *const send = s + len; | |
3855 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
3856 | ||
4c8a458a KW |
3857 | /* All occurrences of these are to be moved to follow any other marks. |
3858 | * This is context-dependent. We may not be passed enough context to | |
3859 | * move the iota subscript beyond all of them, but we do the best we can | |
3860 | * with what we're given. The result is always better than if we | |
3861 | * hadn't done this. And, the problem would only arise if we are | |
3862 | * passed a character without all its combining marks, which would be | |
3863 | * the caller's mistake. The information this is based on comes from a | |
3864 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
3865 | * itself) and so can't be checked properly to see if it ever gets | |
3866 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 3867 | bool in_iota_subscript = FALSE; |
00f254e2 | 3868 | |
67306194 | 3869 | while (s < send) { |
00f254e2 KW |
3870 | if (in_iota_subscript && ! is_utf8_mark(s)) { |
3871 | /* A non-mark. Time to output the iota subscript */ | |
3872 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 | |
3873 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
3874 | ||
3875 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
3876 | in_iota_subscript = FALSE; | |
3877 | } | |
00f254e2 | 3878 | |
00f254e2 KW |
3879 | /* If the UTF-8 character is invariant, then it is in the range |
3880 | * known by the standard macro; result is only one byte long */ | |
3881 | if (UTF8_IS_INVARIANT(*s)) { | |
3882 | *d++ = toUPPER(*s); | |
3883 | s++; | |
3884 | } | |
3885 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
3886 | ||
3887 | /* Likewise, if it fits in a byte, its case change is in our | |
3888 | * table */ | |
e1a8dbf5 | 3889 | U8 orig = TWO_BYTE_UTF8_TO_UNI(*s, *(s+1)); |
00f254e2 KW |
3890 | U8 upper = toUPPER_LATIN1_MOD(orig); |
3891 | CAT_TWO_BYTE_UNI_UPPER_MOD(d, orig, upper); | |
e1a8dbf5 | 3892 | s += 2; |
00f254e2 KW |
3893 | } |
3894 | else { | |
00f254e2 KW |
3895 | |
3896 | /* Otherwise, need the general UTF-8 case. Get the changed | |
3897 | * case value and copy it to the output buffer */ | |
3898 | ||
3899 | const STRLEN u = UTF8SKIP(s); | |
3900 | STRLEN ulen; | |
67306194 | 3901 | |
00f254e2 | 3902 | const UV uv = toUPPER_utf8(s, tmpbuf, &ulen); |
4c8a458a KW |
3903 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
3904 | && utf8_to_uvchr(s, 0) == COMBINING_GREEK_YPOGEGRAMMENI) | |
3905 | { | |
00f254e2 KW |
3906 | in_iota_subscript = TRUE; |
3907 | } | |
3908 | else { | |
00f254e2 KW |
3909 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
3910 | /* If the eventually required minimum size outgrows | |
3911 | * the available space, we need to grow. */ | |
3912 | const UV o = d - (U8*)SvPVX_const(dest); | |
3913 | ||
3914 | /* If someone uppercases one million U+03B0s we | |
3915 | * SvGROW() one million times. Or we could try | |
3916 | * guessing how much to allocate without allocating too | |
4c8a458a KW |
3917 | * much. Such is life. See corresponding comment in |
3918 | * lc code for another option */ | |
00f254e2 KW |
3919 | SvGROW(dest, min); |
3920 | d = (U8*)SvPVX(dest) + o; | |
3921 | } | |
3922 | Copy(tmpbuf, d, ulen, U8); | |
3923 | d += ulen; | |
00f254e2 | 3924 | } |
00f254e2 | 3925 | s += u; |
67306194 | 3926 | } |
67306194 | 3927 | } |
4c8a458a KW |
3928 | if (in_iota_subscript) { |
3929 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
3930 | } | |
67306194 NC |
3931 | SvUTF8_on(dest); |
3932 | *d = '\0'; | |
3933 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4c8a458a KW |
3934 | } |
3935 | else { /* Not UTF-8 */ | |
67306194 NC |
3936 | if (len) { |
3937 | const U8 *const send = s + len; | |
00f254e2 KW |
3938 | |
3939 | /* Use locale casing if in locale; regular style if not treating | |
3940 | * latin1 as having case; otherwise the latin1 casing. Do the | |
3941 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 3942 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3943 | TAINT; |
67306194 NC |
3944 | SvTAINTED_on(dest); |
3945 | for (; s < send; d++, s++) | |
3946 | *d = toUPPER_LC(*s); | |
31351b04 | 3947 | } |
00f254e2 KW |
3948 | else if (! IN_UNI_8_BIT) { |
3949 | for (; s < send; d++, s++) { | |
67306194 | 3950 | *d = toUPPER(*s); |
00f254e2 | 3951 | } |
31351b04 | 3952 | } |
00f254e2 KW |
3953 | else { |
3954 | for (; s < send; d++, s++) { | |
3955 | *d = toUPPER_LATIN1_MOD(*s); | |
3956 | if (*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) continue; | |
3957 | ||
3958 | /* The mainstream case is the tight loop above. To avoid | |
3959 | * extra tests in that, all three characters that require | |
3960 | * special handling are mapped by the MOD to the one tested | |
3961 | * just above. | |
3962 | * Use the source to distinguish between the three cases */ | |
3963 | ||
3964 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
3965 | ||
3966 | /* uc() of this requires 2 characters, but they are | |
3967 | * ASCII. If not enough room, grow the string */ | |
3968 | if (SvLEN(dest) < ++min) { | |
3969 | const UV o = d - (U8*)SvPVX_const(dest); | |
3970 | SvGROW(dest, min); | |
3971 | d = (U8*)SvPVX(dest) + o; | |
3972 | } | |
3973 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
3974 | continue; /* Back to the tight loop; still in ASCII */ | |
3975 | } | |
3976 | ||
3977 | /* The other two special handling characters have their | |
3978 | * upper cases outside the latin1 range, hence need to be | |
3979 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
3980 | * here we are somewhere in the middle of processing a | |
3981 | * non-UTF-8 string, and realize that we will have to convert | |
3982 | * the whole thing to UTF-8. What to do? There are | |
3983 | * several possibilities. The simplest to code is to | |
3984 | * convert what we have so far, set a flag, and continue on | |
3985 | * in the loop. The flag would be tested each time through | |
3986 | * the loop, and if set, the next character would be | |
3987 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
3988 | * to slow down the mainstream case at all for this fairly | |
3989 | * rare case, so I didn't want to add a test that didn't | |
3990 | * absolutely have to be there in the loop, besides the | |
3991 | * possibility that it would get too complicated for | |
3992 | * optimizers to deal with. Another possibility is to just | |
3993 | * give up, convert the source to UTF-8, and restart the | |
3994 | * function that way. Another possibility is to convert | |
3995 | * both what has already been processed and what is yet to | |
3996 | * come separately to UTF-8, then jump into the loop that | |
3997 | * handles UTF-8. But the most efficient time-wise of the | |
3998 | * ones I could think of is what follows, and turned out to | |
3999 | * not require much extra code. */ | |
4000 | ||
4001 | /* Convert what we have so far into UTF-8, telling the | |
4002 | * function that we know it should be converted, and to | |
4003 | * allow extra space for what we haven't processed yet. | |
4004 | * Assume the worst case space requirements for converting | |
4005 | * what we haven't processed so far: that it will require | |
4006 | * two bytes for each remaining source character, plus the | |
4007 | * NUL at the end. This may cause the string pointer to | |
4008 | * move, so re-find it. */ | |
4009 | ||
4010 | len = d - (U8*)SvPVX_const(dest); | |
4011 | SvCUR_set(dest, len); | |
4012 | len = sv_utf8_upgrade_flags_grow(dest, | |
4013 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
4014 | (send -s) * 2 + 1); | |
4015 | d = (U8*)SvPVX(dest) + len; | |
4016 | ||
4017 | /* And append the current character's upper case in UTF-8 */ | |
4018 | CAT_NON_LATIN1_UC(d, *s); | |
4019 | ||
4020 | /* Now process the remainder of the source, converting to | |
4021 | * upper and UTF-8. If a resulting byte is invariant in | |
4022 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
4023 | * append it to the output. */ | |
4024 | ||
4025 | s++; | |
4026 | for (; s < send; s++) { | |
4027 | U8 upper = toUPPER_LATIN1_MOD(*s); | |
4028 | if UTF8_IS_INVARIANT(upper) { | |
4029 | *d++ = upper; | |
4030 | } | |
4031 | else { | |
4032 | CAT_TWO_BYTE_UNI_UPPER_MOD(d, *s, upper); | |
4033 | } | |
4034 | } | |
4035 | ||
4036 | /* Here have processed the whole source; no need to continue | |
4037 | * with the outer loop. Each character has been converted | |
4038 | * to upper case and converted to UTF-8 */ | |
4039 | ||
4040 | break; | |
4041 | } /* End of processing all latin1-style chars */ | |
4042 | } /* End of processing all chars */ | |
4043 | } /* End of source is not empty */ | |
4044 | ||
67306194 | 4045 | if (source != dest) { |
00f254e2 | 4046 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
4047 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4048 | } | |
00f254e2 | 4049 | } /* End of isn't utf8 */ |
539689e7 FC |
4050 | if (dest != source && SvTAINTED(source)) |
4051 | SvTAINT(dest); | |
67306194 | 4052 | SvSETMAGIC(dest); |
79072805 LW |
4053 | RETURN; |
4054 | } | |
4055 | ||
4056 | PP(pp_lc) | |
4057 | { | |
97aff369 | 4058 | dVAR; |
39644a26 | 4059 | dSP; |
ec9af7d4 | 4060 | SV *source = TOPs; |
463ee0b2 | 4061 | STRLEN len; |
ec9af7d4 NC |
4062 | STRLEN min; |
4063 | SV *dest; | |
4064 | const U8 *s; | |
4065 | U8 *d; | |
79072805 | 4066 | |
ec9af7d4 NC |
4067 | SvGETMAGIC(source); |
4068 | ||
4069 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
17fa0776 | 4070 | && SvTEMP(source) && !DO_UTF8(source)) { |
ec9af7d4 | 4071 | |
00f254e2 KW |
4072 | /* We can convert in place, as lowercasing anything in the latin1 range |
4073 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
4074 | dest = source; |
4075 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4076 | min = len + 1; | |
4077 | } else { | |
a0ed51b3 | 4078 | dTARGET; |
a0ed51b3 | 4079 | |
ec9af7d4 NC |
4080 | dest = TARG; |
4081 | ||
4082 | /* The old implementation would copy source into TARG at this point. | |
4083 | This had the side effect that if source was undef, TARG was now | |
4084 | an undefined SV with PADTMP set, and they don't warn inside | |
4085 | sv_2pv_flags(). However, we're now getting the PV direct from | |
4086 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
4087 | little games. */ | |
4088 | ||
4089 | if (SvOK(source)) { | |
4090 | s = (const U8*)SvPV_nomg_const(source, len); | |
4091 | } else { | |
0a0ffbce RGS |
4092 | if (ckWARN(WARN_UNINITIALIZED)) |
4093 | report_uninit(source); | |
1eced8f8 | 4094 | s = (const U8*)""; |
ec9af7d4 | 4095 | len = 0; |
a0ed51b3 | 4096 | } |
ec9af7d4 | 4097 | min = len + 1; |
128c9517 | 4098 | |
ec9af7d4 | 4099 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 4100 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
4101 | (void)SvPOK_only(dest); |
4102 | ||
4103 | SETs(dest); | |
4104 | } | |
4105 | ||
4106 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
4107 | to check DO_UTF8 again here. */ | |
4108 | ||
4109 | if (DO_UTF8(source)) { | |
4110 | const U8 *const send = s + len; | |
4111 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
4112 | ||
4113 | while (s < send) { | |
00f254e2 | 4114 | if (UTF8_IS_INVARIANT(*s)) { |
89ebb4a3 | 4115 | |
00f254e2 | 4116 | /* Invariant characters use the standard mappings compiled in. |
ec9af7d4 | 4117 | */ |
00f254e2 KW |
4118 | *d++ = toLOWER(*s); |
4119 | s++; | |
ec9af7d4 | 4120 | } |
00f254e2 | 4121 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { |
89ebb4a3 | 4122 | |
00f254e2 | 4123 | /* As do the ones in the Latin1 range */ |
e1a8dbf5 | 4124 | U8 lower = toLOWER_LATIN1(TWO_BYTE_UTF8_TO_UNI(*s, *(s+1))); |
00f254e2 | 4125 | CAT_UNI_TO_UTF8_TWO_BYTE(d, lower); |
e1a8dbf5 | 4126 | s += 2; |
a0ed51b3 | 4127 | } |
00f254e2 | 4128 | else { |
00f254e2 KW |
4129 | /* Here, is utf8 not in Latin-1 range, have to go out and get |
4130 | * the mappings from the tables. */ | |
4131 | ||
4132 | const STRLEN u = UTF8SKIP(s); | |
4133 | STRLEN ulen; | |
4134 | ||
00f254e2 | 4135 | toLOWER_utf8(s, tmpbuf, &ulen); |
00f254e2 | 4136 | |
86510fb1 KW |
4137 | /* Here is where we would do context-sensitive actions. See |
4138 | * the commit message for this comment for why there isn't any | |
4139 | */ | |
00f254e2 | 4140 | |
fdb34c52 KW |
4141 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
4142 | ||
4143 | /* If the eventually required minimum size outgrows the | |
4144 | * available space, we need to grow. */ | |
4145 | const UV o = d - (U8*)SvPVX_const(dest); | |
4146 | ||
4147 | /* If someone lowercases one million U+0130s we SvGROW() | |
4148 | * one million times. Or we could try guessing how much to | |
4149 | * allocate without allocating too much. Such is life. | |
4150 | * Another option would be to grow an extra byte or two | |
4151 | * more each time we need to grow, which would cut down the | |
4152 | * million to 500K, with little waste */ | |
4153 | SvGROW(dest, min); | |
4154 | d = (U8*)SvPVX(dest) + o; | |
4155 | } | |
86510fb1 | 4156 | |
00f254e2 KW |
4157 | /* Copy the newly lowercased letter to the output buffer we're |
4158 | * building */ | |
4159 | Copy(tmpbuf, d, ulen, U8); | |
4160 | d += ulen; | |
4161 | s += u; | |
00f254e2 | 4162 | } |
00f254e2 | 4163 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4164 | SvUTF8_on(dest); |
4165 | *d = '\0'; | |
4166 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
00f254e2 | 4167 | } else { /* Not utf8 */ |
31351b04 | 4168 | if (len) { |
ec9af7d4 | 4169 | const U8 *const send = s + len; |
00f254e2 KW |
4170 | |
4171 | /* Use locale casing if in locale; regular style if not treating | |
4172 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4173 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 4174 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 4175 | TAINT; |
ec9af7d4 NC |
4176 | SvTAINTED_on(dest); |
4177 | for (; s < send; d++, s++) | |
4178 | *d = toLOWER_LC(*s); | |
31351b04 | 4179 | } |
00f254e2 KW |
4180 | else if (! IN_UNI_8_BIT) { |
4181 | for (; s < send; d++, s++) { | |
ec9af7d4 | 4182 | *d = toLOWER(*s); |
00f254e2 KW |
4183 | } |
4184 | } | |
4185 | else { | |
4186 | for (; s < send; d++, s++) { | |
4187 | *d = toLOWER_LATIN1(*s); | |
4188 | } | |
31351b04 | 4189 | } |
bbce6d69 | 4190 | } |
ec9af7d4 NC |
4191 | if (source != dest) { |
4192 | *d = '\0'; | |
4193 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4194 | } | |
79072805 | 4195 | } |
539689e7 FC |
4196 | if (dest != source && SvTAINTED(source)) |
4197 | SvTAINT(dest); | |
ec9af7d4 | 4198 | SvSETMAGIC(dest); |
79072805 LW |
4199 | RETURN; |
4200 | } | |
4201 | ||
a0d0e21e | 4202 | PP(pp_quotemeta) |
79072805 | 4203 | { |
97aff369 | 4204 | dVAR; dSP; dTARGET; |
1b6737cc | 4205 | SV * const sv = TOPs; |
a0d0e21e | 4206 | STRLEN len; |
0d46e09a | 4207 | register const char *s = SvPV_const(sv,len); |
79072805 | 4208 | |
7e2040f0 | 4209 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4210 | if (len) { |
1b6737cc | 4211 | register char *d; |
862a34c6 | 4212 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4213 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4214 | d = SvPVX(TARG); |
7e2040f0 | 4215 | if (DO_UTF8(sv)) { |
0dd2cdef | 4216 | while (len) { |
fd400ab9 | 4217 | if (UTF8_IS_CONTINUED(*s)) { |
0dd2cdef LW |
4218 | STRLEN ulen = UTF8SKIP(s); |
4219 | if (ulen > len) | |
4220 | ulen = len; | |
4221 | len -= ulen; | |
4222 | while (ulen--) | |
4223 | *d++ = *s++; | |
4224 | } | |
4225 | else { | |
4226 | if (!isALNUM(*s)) | |
4227 | *d++ = '\\'; | |
4228 | *d++ = *s++; | |
4229 | len--; | |
4230 | } | |
4231 | } | |
7e2040f0 | 4232 | SvUTF8_on(TARG); |
0dd2cdef LW |
4233 | } |
4234 | else { | |
4235 | while (len--) { | |
4236 | if (!isALNUM(*s)) | |
4237 | *d++ = '\\'; | |
4238 | *d++ = *s++; | |
4239 | } | |
79072805 | 4240 | } |
a0d0e21e | 4241 | *d = '\0'; |
349d4f2f | 4242 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4243 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4244 | } |
a0d0e21e LW |
4245 | else |
4246 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4247 | SETTARG; |
79072805 LW |
4248 | RETURN; |
4249 | } | |
4250 | ||
a0d0e21e | 4251 | /* Arrays. */ |
79072805 | 4252 | |
a0d0e21e | 4253 | PP(pp_aslice) |
79072805 | 4254 | { |
97aff369 | 4255 | dVAR; dSP; dMARK; dORIGMARK; |
502c6561 | 4256 | register AV *const av = MUTABLE_AV(POPs); |
1b6737cc | 4257 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
79072805 | 4258 | |
a0d0e21e | 4259 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4260 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4261 | bool can_preserve = FALSE; | |
4262 | ||
4263 | if (localizing) { | |
4264 | MAGIC *mg; | |
4265 | HV *stash; | |
4266 | ||
4267 | can_preserve = SvCANEXISTDELETE(av); | |
4268 | } | |
4269 | ||
4270 | if (lval && localizing) { | |
1b6737cc | 4271 | register SV **svp; |
748a9306 | 4272 | I32 max = -1; |
924508f0 | 4273 | for (svp = MARK + 1; svp <= SP; svp++) { |
4ea561bc | 4274 | const I32 elem = SvIV(*svp); |
748a9306 LW |
4275 | if (elem > max) |
4276 | max = elem; | |
4277 | } | |
4278 | if (max > AvMAX(av)) | |
4279 | av_extend(av, max); | |
4280 | } | |
4ad10a0b | 4281 | |
a0d0e21e | 4282 | while (++MARK <= SP) { |
1b6737cc | 4283 | register SV **svp; |
4ea561bc | 4284 | I32 elem = SvIV(*MARK); |
4ad10a0b | 4285 | bool preeminent = TRUE; |
a0d0e21e | 4286 | |
4ad10a0b VP |
4287 | if (localizing && can_preserve) { |
4288 | /* If we can determine whether the element exist, | |
4289 | * Try to preserve the existenceness of a tied array | |
4290 | * element by using EXISTS and DELETE if possible. | |
4291 | * Fallback to FETCH and STORE otherwise. */ | |
4292 | preeminent = av_exists(av, elem); | |
4293 | } | |
4294 | ||
a0d0e21e LW |
4295 | svp = av_fetch(av, elem, lval); |
4296 | if (lval) { | |
3280af22 | 4297 | if (!svp || *svp == &PL_sv_undef) |
cea2e8a9 | 4298 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4299 | if (localizing) { |
4300 | if (preeminent) | |
4301 | save_aelem(av, elem, svp); | |
4302 | else | |
4303 | SAVEADELETE(av, elem); | |
4304 | } | |
79072805 | 4305 | } |
3280af22 | 4306 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4307 | } |
4308 | } | |
748a9306 | 4309 | if (GIMME != G_ARRAY) { |
a0d0e21e | 4310 | MARK = ORIGMARK; |
04ab2c87 | 4311 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4312 | SP = MARK; |
4313 | } | |
79072805 LW |
4314 | RETURN; |
4315 | } | |
4316 | ||
cba5a3b0 DG |
4317 | /* Smart dereferencing for keys, values and each */ |
4318 | PP(pp_rkeys) | |
4319 | { | |
4320 | dVAR; | |
4321 | dSP; | |
4322 | dPOPss; | |
4323 | ||
7ac5715b FC |
4324 | SvGETMAGIC(sv); |
4325 | ||
4326 | if ( | |
4327 | !SvROK(sv) | |
4328 | || (sv = SvRV(sv), | |
4329 | (SvTYPE(sv) != SVt_PVHV && SvTYPE(sv) != SVt_PVAV) | |
4330 | || SvOBJECT(sv) | |
4331 | ) | |
4332 | ) { | |
4333 | DIE(aTHX_ | |
4334 | "Type of argument to %s must be unblessed hashref or arrayref", | |
4c540399 | 4335 | PL_op_desc[PL_op->op_type] ); |
cba5a3b0 DG |
4336 | } |
4337 | ||
d8065907 FC |
4338 | if (PL_op->op_flags & OPf_SPECIAL && SvTYPE(sv) == SVt_PVAV) |
4339 | DIE(aTHX_ | |
4340 | "Can't modify %s in %s", | |
4341 | PL_op_desc[PL_op->op_type], PL_op_desc[PL_op->op_next->op_type] | |
4342 | ); | |
4343 | ||
cba5a3b0 DG |
4344 | /* Delegate to correct function for op type */ |
4345 | PUSHs(sv); | |
4346 | if (PL_op->op_type == OP_RKEYS || PL_op->op_type == OP_RVALUES) { | |
4347 | return (SvTYPE(sv) == SVt_PVHV) ? Perl_do_kv(aTHX) : Perl_pp_akeys(aTHX); | |
4348 | } | |
4349 | else { | |
4350 | return (SvTYPE(sv) == SVt_PVHV) ? Perl_pp_each(aTHX) : Perl_pp_aeach(aTHX); | |
4351 | } | |
4352 | } | |
4353 | ||
878d132a NC |
4354 | PP(pp_aeach) |
4355 | { | |
4356 | dVAR; | |
4357 | dSP; | |
502c6561 | 4358 | AV *array = MUTABLE_AV(POPs); |
878d132a | 4359 | const I32 gimme = GIMME_V; |
453d94a9 | 4360 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4361 | const IV current = (*iterp)++; |
4362 | ||
4363 | if (current > av_len(array)) { | |
4364 | *iterp = 0; | |
4365 | if (gimme == G_SCALAR) | |
4366 | RETPUSHUNDEF; | |
4367 | else | |
4368 | RETURN; | |
4369 | } | |
4370 | ||
4371 | EXTEND(SP, 2); | |
e1dccc0d | 4372 | mPUSHi(current); |
878d132a NC |
4373 | if (gimme == G_ARRAY) { |
4374 | SV **const element = av_fetch(array, current, 0); | |
4375 | PUSHs(element ? *element : &PL_sv_undef); | |
4376 | } | |
4377 | RETURN; | |
4378 | } | |
4379 | ||
4380 | PP(pp_akeys) | |
4381 | { | |
4382 | dVAR; | |
4383 | dSP; | |
502c6561 | 4384 | AV *array = MUTABLE_AV(POPs); |
878d132a NC |
4385 | const I32 gimme = GIMME_V; |
4386 | ||
4387 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4388 | ||
4389 | if (gimme == G_SCALAR) { | |
4390 | dTARGET; | |
4391 | PUSHi(av_len(array) + 1); | |
4392 | } | |
4393 | else if (gimme == G_ARRAY) { | |
4394 | IV n = Perl_av_len(aTHX_ array); | |
e1dccc0d | 4395 | IV i; |
878d132a NC |
4396 | |
4397 | EXTEND(SP, n + 1); | |
4398 | ||
cba5a3b0 | 4399 | if (PL_op->op_type == OP_AKEYS || PL_op->op_type == OP_RKEYS) { |
e1dccc0d | 4400 | for (i = 0; i <= n; i++) { |
878d132a NC |
4401 | mPUSHi(i); |
4402 | } | |
4403 | } | |
4404 | else { | |
4405 | for (i = 0; i <= n; i++) { | |
4406 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4407 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4408 | } | |
4409 | } | |
4410 | } | |
4411 | RETURN; | |
4412 | } | |
4413 | ||
79072805 LW |
4414 | /* Associative arrays. */ |
4415 | ||
4416 | PP(pp_each) | |
4417 | { | |
97aff369 | 4418 | dVAR; |
39644a26 | 4419 | dSP; |
85fbaab2 | 4420 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4421 | HE *entry; |
f54cb97a | 4422 | const I32 gimme = GIMME_V; |
8ec5e241 | 4423 | |
c07a80fd | 4424 | PUTBACK; |
c750a3ec | 4425 | /* might clobber stack_sp */ |
6d822dc4 | 4426 | entry = hv_iternext(hash); |
c07a80fd | 4427 | SPAGAIN; |
79072805 | 4428 | |
79072805 LW |
4429 | EXTEND(SP, 2); |
4430 | if (entry) { | |
1b6737cc | 4431 | SV* const sv = hv_iterkeysv(entry); |
574c8022 | 4432 | PUSHs(sv); /* won't clobber stack_sp */ |
54310121 | 4433 | if (gimme == G_ARRAY) { |
59af0135 | 4434 | SV *val; |
c07a80fd | 4435 | PUTBACK; |
c750a3ec | 4436 | /* might clobber stack_sp */ |
6d822dc4 | 4437 | val = hv_iterval(hash, entry); |
c07a80fd | 4438 | SPAGAIN; |
59af0135 | 4439 | PUSHs(val); |
79072805 | 4440 | } |
79072805 | 4441 | } |
54310121 | 4442 | else if (gimme == G_SCALAR) |
79072805 LW |
4443 | RETPUSHUNDEF; |
4444 | ||
4445 | RETURN; | |
4446 | } | |
4447 | ||
7332a6c4 VP |
4448 | STATIC OP * |
4449 | S_do_delete_local(pTHX) | |
79072805 | 4450 | { |
97aff369 | 4451 | dVAR; |
39644a26 | 4452 | dSP; |
f54cb97a | 4453 | const I32 gimme = GIMME_V; |
7332a6c4 VP |
4454 | const MAGIC *mg; |
4455 | HV *stash; | |
4456 | ||
4457 | if (PL_op->op_private & OPpSLICE) { | |
4458 | dMARK; dORIGMARK; | |
4459 | SV * const osv = POPs; | |
4460 | const bool tied = SvRMAGICAL(osv) | |
4461 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
4462 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
4463 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
4464 | const U32 type = SvTYPE(osv); | |
4465 | if (type == SVt_PVHV) { /* hash element */ | |
4466 | HV * const hv = MUTABLE_HV(osv); | |
4467 | while (++MARK <= SP) { | |
4468 | SV * const keysv = *MARK; | |
4469 | SV *sv = NULL; | |
4470 | bool preeminent = TRUE; | |
4471 | if (can_preserve) | |
4472 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4473 | if (tied) { | |
4474 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4475 | if (he) | |
4476 | sv = HeVAL(he); | |
4477 | else | |
4478 | preeminent = FALSE; | |
4479 | } | |
4480 | else { | |
4481 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
4482 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4483 | } | |
4484 | if (preeminent) { | |
4485 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
4486 | if (tied) { | |
4487 | *MARK = sv_mortalcopy(sv); | |
4488 | mg_clear(sv); | |
4489 | } else | |
4490 | *MARK = sv; | |
4491 | } | |
4492 | else { | |
4493 | SAVEHDELETE(hv, keysv); | |
4494 | *MARK = &PL_sv_undef; | |
4495 | } | |
4496 | } | |
4497 | } | |
4498 | else if (type == SVt_PVAV) { /* array element */ | |
4499 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4500 | AV * const av = MUTABLE_AV(osv); | |
4501 | while (++MARK <= SP) { | |
4502 | I32 idx = SvIV(*MARK); | |
4503 | SV *sv = NULL; | |
4504 | bool preeminent = TRUE; | |
4505 | if (can_preserve) | |
4506 | preeminent = av_exists(av, idx); | |
4507 | if (tied) { | |
4508 | SV **svp = av_fetch(av, idx, 1); | |
4509 | if (svp) | |
4510 | sv = *svp; | |
4511 | else | |
4512 | preeminent = FALSE; | |
4513 | } | |
4514 | else { | |
4515 | sv = av_delete(av, idx, 0); | |
4516 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4517 | } | |
4518 | if (preeminent) { | |
4519 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4520 | if (tied) { | |
4521 | *MARK = sv_mortalcopy(sv); | |
4522 | mg_clear(sv); | |
4523 | } else | |
4524 | *MARK = sv; | |
4525 | } | |
4526 | else { | |
4527 | SAVEADELETE(av, idx); | |
4528 | *MARK = &PL_sv_undef; | |
4529 | } | |
4530 | } | |
4531 | } | |
4532 | } | |
4533 | else | |
4534 | DIE(aTHX_ "Not a HASH reference"); | |
4535 | if (gimme == G_VOID) | |
4536 | SP = ORIGMARK; | |
4537 | else if (gimme == G_SCALAR) { | |
4538 | MARK = ORIGMARK; | |
4539 | if (SP > MARK) | |
4540 | *++MARK = *SP; | |
4541 | else | |
4542 | *++MARK = &PL_sv_undef; | |
4543 | SP = MARK; | |
4544 | } | |
4545 | } | |
4546 | else { | |
4547 | SV * const keysv = POPs; | |
4548 | SV * const osv = POPs; | |
4549 | const bool tied = SvRMAGICAL(osv) | |
4550 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
4551 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
4552 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
4553 | const U32 type = SvTYPE(osv); | |
4554 | SV *sv = NULL; | |
4555 | if (type == SVt_PVHV) { | |
4556 | HV * const hv = MUTABLE_HV(osv); | |
4557 | bool preeminent = TRUE; | |
4558 | if (can_preserve) | |
4559 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4560 | if (tied) { | |
4561 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4562 | if (he) | |
4563 | sv = HeVAL(he); | |
4564 | else | |
4565 | preeminent = FALSE; | |
4566 | } | |
4567 | else { | |
4568 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
4569 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4570 | } | |
4571 | if (preeminent) { | |
4572 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
4573 | if (tied) { | |
4574 | SV *nsv = sv_mortalcopy(sv); | |
4575 | mg_clear(sv); | |
4576 | sv = nsv; | |
4577 | } | |
4578 | } | |
4579 | else | |
4580 | SAVEHDELETE(hv, keysv); | |
4581 | } | |
4582 | else if (type == SVt_PVAV) { | |
4583 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4584 | AV * const av = MUTABLE_AV(osv); | |
4585 | I32 idx = SvIV(keysv); | |
4586 | bool preeminent = TRUE; | |
4587 | if (can_preserve) | |
4588 | preeminent = av_exists(av, idx); | |
4589 | if (tied) { | |
4590 | SV **svp = av_fetch(av, idx, 1); | |
4591 | if (svp) | |
4592 | sv = *svp; | |
4593 | else | |
4594 | preeminent = FALSE; | |
4595 | } | |
4596 | else { | |
4597 | sv = av_delete(av, idx, 0); | |
4598 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4599 | } | |
4600 | if (preeminent) { | |
4601 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4602 | if (tied) { | |
4603 | SV *nsv = sv_mortalcopy(sv); | |
4604 | mg_clear(sv); | |
4605 | sv = nsv; | |
4606 | } | |
4607 | } | |
4608 | else | |
4609 | SAVEADELETE(av, idx); | |
4610 | } | |
4611 | else | |
4612 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4613 | } | |
4614 | else | |
4615 | DIE(aTHX_ "Not a HASH reference"); | |
4616 | if (!sv) | |
4617 | sv = &PL_sv_undef; | |
4618 | if (gimme != G_VOID) | |
4619 | PUSHs(sv); | |
4620 | } | |
4621 | ||
4622 | RETURN; | |
4623 | } | |
4624 | ||
4625 | PP(pp_delete) | |
4626 | { | |
4627 | dVAR; | |
4628 | dSP; | |
4629 | I32 gimme; | |
4630 | I32 discard; | |
4631 | ||
4632 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4633 | return do_delete_local(); | |
4634 | ||
4635 | gimme = GIMME_V; | |
4636 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4637 | |
533c011a | 4638 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 4639 | dMARK; dORIGMARK; |
85fbaab2 | 4640 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4641 | const U32 hvtype = SvTYPE(hv); |
01020589 GS |
4642 | if (hvtype == SVt_PVHV) { /* hash element */ |
4643 | while (++MARK <= SP) { | |
1b6737cc | 4644 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
4645 | *MARK = sv ? sv : &PL_sv_undef; |
4646 | } | |
5f05dabc | 4647 | } |
6d822dc4 MS |
4648 | else if (hvtype == SVt_PVAV) { /* array element */ |
4649 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4650 | while (++MARK <= SP) { | |
502c6561 | 4651 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
6d822dc4 MS |
4652 | *MARK = sv ? sv : &PL_sv_undef; |
4653 | } | |
4654 | } | |
01020589 GS |
4655 | } |
4656 | else | |
4657 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4658 | if (discard) |
4659 | SP = ORIGMARK; | |
4660 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4661 | MARK = ORIGMARK; |
9111c9c0 DM |
4662 | if (SP > MARK) |
4663 | *++MARK = *SP; | |
4664 | else | |
4665 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4666 | SP = MARK; |
4667 | } | |
4668 | } | |
4669 | else { | |
4670 | SV *keysv = POPs; | |
85fbaab2 | 4671 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4672 | SV *sv = NULL; |
97fcbf96 MB |
4673 | if (SvTYPE(hv) == SVt_PVHV) |
4674 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4675 | else if (SvTYPE(hv) == SVt_PVAV) { |
4676 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4677 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4678 | else |
4679 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4680 | } |
97fcbf96 | 4681 | else |
cea2e8a9 | 4682 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4683 | if (!sv) |
3280af22 | 4684 | sv = &PL_sv_undef; |
54310121 | 4685 | if (!discard) |
4686 | PUSHs(sv); | |
79072805 | 4687 | } |
79072805 LW |
4688 | RETURN; |
4689 | } | |
4690 | ||
a0d0e21e | 4691 | PP(pp_exists) |
79072805 | 4692 | { |
97aff369 | 4693 | dVAR; |
39644a26 | 4694 | dSP; |
afebc493 GS |
4695 | SV *tmpsv; |
4696 | HV *hv; | |
4697 | ||
4698 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
4699 | GV *gv; | |
0bd48802 | 4700 | SV * const sv = POPs; |
f2c0649b | 4701 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
4702 | if (cv) |
4703 | RETPUSHYES; | |
4704 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
4705 | RETPUSHYES; | |
4706 | RETPUSHNO; | |
4707 | } | |
4708 | tmpsv = POPs; | |
85fbaab2 | 4709 | hv = MUTABLE_HV(POPs); |
c750a3ec | 4710 | if (SvTYPE(hv) == SVt_PVHV) { |
ae77835f | 4711 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 4712 | RETPUSHYES; |
ef54e1a4 JH |
4713 | } |
4714 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 4715 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 4716 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
4717 | RETPUSHYES; |
4718 | } | |
ef54e1a4 JH |
4719 | } |
4720 | else { | |
cea2e8a9 | 4721 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 4722 | } |
a0d0e21e LW |
4723 | RETPUSHNO; |
4724 | } | |
79072805 | 4725 | |
a0d0e21e LW |
4726 | PP(pp_hslice) |
4727 | { | |
97aff369 | 4728 | dVAR; dSP; dMARK; dORIGMARK; |
85fbaab2 | 4729 | register HV * const hv = MUTABLE_HV(POPs); |
1b6737cc AL |
4730 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
4731 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
d30e492c | 4732 | bool can_preserve = FALSE; |
79072805 | 4733 | |
eb85dfd3 DM |
4734 | if (localizing) { |
4735 | MAGIC *mg; | |
4736 | HV *stash; | |
4737 | ||
d30e492c VP |
4738 | if (SvCANEXISTDELETE(hv) || mg_find((const SV *)hv, PERL_MAGIC_env)) |
4739 | can_preserve = TRUE; | |
eb85dfd3 DM |
4740 | } |
4741 | ||
6d822dc4 | 4742 | while (++MARK <= SP) { |
1b6737cc | 4743 | SV * const keysv = *MARK; |
6d822dc4 MS |
4744 | SV **svp; |
4745 | HE *he; | |
d30e492c VP |
4746 | bool preeminent = TRUE; |
4747 | ||
4748 | if (localizing && can_preserve) { | |
4749 | /* If we can determine whether the element exist, | |
4750 | * try to preserve the existenceness of a tied hash | |
4751 | * element by using EXISTS and DELETE if possible. | |
4752 | * Fallback to FETCH and STORE otherwise. */ | |
4753 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 4754 | } |
eb85dfd3 | 4755 | |
6d822dc4 | 4756 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 4757 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 4758 | |
6d822dc4 MS |
4759 | if (lval) { |
4760 | if (!svp || *svp == &PL_sv_undef) { | |
be2597df | 4761 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
4762 | } |
4763 | if (localizing) { | |
7a2e501a | 4764 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 4765 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
4766 | else if (preeminent) |
4767 | save_helem_flags(hv, keysv, svp, | |
4768 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
4769 | else | |
4770 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
4771 | } |
4772 | } | |
4773 | *MARK = svp ? *svp : &PL_sv_undef; | |
79072805 | 4774 | } |
a0d0e21e LW |
4775 | if (GIMME != G_ARRAY) { |
4776 | MARK = ORIGMARK; | |
04ab2c87 | 4777 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 4778 | SP = MARK; |
79072805 | 4779 | } |
a0d0e21e LW |
4780 | RETURN; |
4781 | } | |
4782 | ||
4783 | /* List operators. */ | |
4784 | ||
4785 | PP(pp_list) | |
4786 | { | |
97aff369 | 4787 | dVAR; dSP; dMARK; |
a0d0e21e LW |
4788 | if (GIMME != G_ARRAY) { |
4789 | if (++MARK <= SP) | |
4790 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 4791 | else |
3280af22 | 4792 | *MARK = &PL_sv_undef; |
a0d0e21e | 4793 | SP = MARK; |
79072805 | 4794 | } |
a0d0e21e | 4795 | RETURN; |
79072805 LW |
4796 | } |
4797 | ||
a0d0e21e | 4798 | PP(pp_lslice) |
79072805 | 4799 | { |
97aff369 | 4800 | dVAR; |
39644a26 | 4801 | dSP; |
1b6737cc AL |
4802 | SV ** const lastrelem = PL_stack_sp; |
4803 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
4804 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
4805 | register SV ** const firstrelem = lastlelem + 1; | |
42e73ed0 | 4806 | I32 is_something_there = FALSE; |
1b6737cc AL |
4807 | |
4808 | register const I32 max = lastrelem - lastlelem; | |
a0d0e21e | 4809 | register SV **lelem; |
a0d0e21e LW |
4810 | |
4811 | if (GIMME != G_ARRAY) { | |
4ea561bc | 4812 | I32 ix = SvIV(*lastlelem); |
748a9306 LW |
4813 | if (ix < 0) |
4814 | ix += max; | |
a0d0e21e | 4815 | if (ix < 0 || ix >= max) |
3280af22 | 4816 | *firstlelem = &PL_sv_undef; |
a0d0e21e LW |
4817 | else |
4818 | *firstlelem = firstrelem[ix]; | |
4819 | SP = firstlelem; | |
4820 | RETURN; | |
4821 | } | |
4822 | ||
4823 | if (max == 0) { | |
4824 | SP = firstlelem - 1; | |
4825 | RETURN; | |
4826 | } | |
4827 | ||
4828 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 4829 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 4830 | if (ix < 0) |
a0d0e21e | 4831 | ix += max; |
c73bf8e3 HS |
4832 | if (ix < 0 || ix >= max) |
4833 | *lelem = &PL_sv_undef; | |
4834 | else { | |
4835 | is_something_there = TRUE; | |
4836 | if (!(*lelem = firstrelem[ix])) | |
3280af22 | 4837 | *lelem = &PL_sv_undef; |
748a9306 | 4838 | } |
79072805 | 4839 | } |
4633a7c4 LW |
4840 | if (is_something_there) |
4841 | SP = lastlelem; | |
4842 | else | |
4843 | SP = firstlelem - 1; | |
79072805 LW |
4844 | RETURN; |
4845 | } | |
4846 | ||
a0d0e21e LW |
4847 | PP(pp_anonlist) |
4848 | { | |
97aff369 | 4849 | dVAR; dSP; dMARK; dORIGMARK; |
1b6737cc | 4850 | const I32 items = SP - MARK; |
ad64d0ec | 4851 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
44a8e56a | 4852 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
6e449a3a MHM |
4853 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
4854 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
4855 | RETURN; |
4856 | } | |
4857 | ||
4858 | PP(pp_anonhash) | |
79072805 | 4859 | { |
97aff369 | 4860 | dVAR; dSP; dMARK; dORIGMARK; |
78c72037 | 4861 | HV* const hv = newHV(); |
a0d0e21e LW |
4862 | |
4863 | while (MARK < SP) { | |
1b6737cc | 4864 | SV * const key = *++MARK; |
561b68a9 | 4865 | SV * const val = newSV(0); |
a0d0e21e LW |
4866 | if (MARK < SP) |
4867 | sv_setsv(val, *++MARK); | |
a2a5de95 NC |
4868 | else |
4869 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); | |
f12c7020 | 4870 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 4871 | } |
a0d0e21e | 4872 | SP = ORIGMARK; |
6e449a3a | 4873 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
ad64d0ec | 4874 | ? newRV_noinc(MUTABLE_SV(hv)) : MUTABLE_SV(hv)); |
79072805 LW |
4875 | RETURN; |
4876 | } | |
4877 | ||
d4fc4415 FC |
4878 | static AV * |
4879 | S_deref_plain_array(pTHX_ AV *ary) | |
4880 | { | |
4881 | if (SvTYPE(ary) == SVt_PVAV) return ary; | |
d2d95e13 | 4882 | SvGETMAGIC((SV *)ary); |
d4fc4415 FC |
4883 | if (!SvROK(ary) || SvTYPE(SvRV(ary)) != SVt_PVAV) |
4884 | Perl_die(aTHX_ "Not an ARRAY reference"); | |
4885 | else if (SvOBJECT(SvRV(ary))) | |
4886 | Perl_die(aTHX_ "Not an unblessed ARRAY reference"); | |
4887 | return (AV *)SvRV(ary); | |
4888 | } | |
4889 | ||
4890 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
4891 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4892 | ({ \ | |
4893 | AV *aRrRay = ary; \ | |
4894 | SvTYPE(aRrRay) == SVt_PVAV \ | |
4895 | ? aRrRay \ | |
4896 | : S_deref_plain_array(aTHX_ aRrRay); \ | |
4897 | }) | |
4898 | #else | |
4899 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4900 | ( \ | |
3b0f6d32 | 4901 | PL_Sv = (SV *)(ary), \ |
d4fc4415 FC |
4902 | SvTYPE(PL_Sv) == SVt_PVAV \ |
4903 | ? (AV *)PL_Sv \ | |
3b0f6d32 | 4904 | : S_deref_plain_array(aTHX_ (AV *)PL_Sv) \ |
d4fc4415 FC |
4905 | ) |
4906 | #endif | |
4907 | ||
a0d0e21e | 4908 | PP(pp_splice) |
79072805 | 4909 | { |
27da23d5 | 4910 | dVAR; dSP; dMARK; dORIGMARK; |
5cd408a2 | 4911 | int num_args = (SP - MARK); |
d4fc4415 | 4912 | register AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
a0d0e21e LW |
4913 | register SV **src; |
4914 | register SV **dst; | |
4915 | register I32 i; | |
4916 | register I32 offset; | |
4917 | register I32 length; | |
4918 | I32 newlen; | |
4919 | I32 after; | |
4920 | I32 diff; | |
ad64d0ec | 4921 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 4922 | |
1b6737cc | 4923 | if (mg) { |
af71faff NC |
4924 | return Perl_tied_method(aTHX_ "SPLICE", mark - 1, MUTABLE_SV(ary), mg, |
4925 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, | |
4926 | sp - mark); | |
93965878 | 4927 | } |
79072805 | 4928 | |
a0d0e21e | 4929 | SP++; |
79072805 | 4930 | |
a0d0e21e | 4931 | if (++MARK < SP) { |
4ea561bc | 4932 | offset = i = SvIV(*MARK); |
a0d0e21e | 4933 | if (offset < 0) |
93965878 | 4934 | offset += AvFILLp(ary) + 1; |
84902520 | 4935 | if (offset < 0) |
cea2e8a9 | 4936 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
4937 | if (++MARK < SP) { |
4938 | length = SvIVx(*MARK++); | |
48cdf507 GA |
4939 | if (length < 0) { |
4940 | length += AvFILLp(ary) - offset + 1; | |
4941 | if (length < 0) | |
4942 | length = 0; | |
4943 | } | |
79072805 LW |
4944 | } |
4945 | else | |
a0d0e21e | 4946 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 4947 | } |
a0d0e21e LW |
4948 | else { |
4949 | offset = 0; | |
4950 | length = AvMAX(ary) + 1; | |
4951 | } | |
8cbc2e3b | 4952 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
4953 | if (num_args > 2) |
4954 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 4955 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 4956 | } |
93965878 | 4957 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
4958 | if (after < 0) { /* not that much array */ |
4959 | length += after; /* offset+length now in array */ | |
4960 | after = 0; | |
4961 | if (!AvALLOC(ary)) | |
4962 | av_extend(ary, 0); | |
4963 | } | |
4964 | ||
4965 | /* At this point, MARK .. SP-1 is our new LIST */ | |
4966 | ||
4967 | newlen = SP - MARK; | |
4968 | diff = newlen - length; | |
13d7cbc1 GS |
4969 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
4970 | av_reify(ary); | |
a0d0e21e | 4971 | |
50528de0 WL |
4972 | /* make new elements SVs now: avoid problems if they're from the array */ |
4973 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 4974 | SV * const h = *dst; |
f2b990bf | 4975 | *dst++ = newSVsv(h); |
50528de0 WL |
4976 | } |
4977 | ||
a0d0e21e | 4978 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 4979 | SV **tmparyval = NULL; |
a0d0e21e | 4980 | if (newlen) { |
a02a5408 | 4981 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 4982 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 4983 | } |
a0d0e21e LW |
4984 | |
4985 | MARK = ORIGMARK + 1; | |
4986 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
4987 | MEXTEND(MARK, length); | |
4988 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
4989 | if (AvREAL(ary)) { | |
bbce6d69 | 4990 | EXTEND_MORTAL(length); |
36477c24 | 4991 | for (i = length, dst = MARK; i; i--) { |
486ec47a | 4992 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 4993 | dst++; |
4994 | } | |
a0d0e21e LW |
4995 | } |
4996 | MARK += length - 1; | |
79072805 | 4997 | } |
a0d0e21e LW |
4998 | else { |
4999 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5000 | if (AvREAL(ary)) { | |
d689ffdd | 5001 | sv_2mortal(*MARK); |
a0d0e21e LW |
5002 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5003 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5004 | } |
a0d0e21e | 5005 | } |
93965878 | 5006 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5007 | |
5008 | /* pull up or down? */ | |
5009 | ||
5010 | if (offset < after) { /* easier to pull up */ | |
5011 | if (offset) { /* esp. if nothing to pull */ | |
5012 | src = &AvARRAY(ary)[offset-1]; | |
5013 | dst = src - diff; /* diff is negative */ | |
5014 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5015 | *dst-- = *src--; | |
79072805 | 5016 | } |
a0d0e21e | 5017 | dst = AvARRAY(ary); |
9c6bc640 | 5018 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5019 | AvMAX(ary) += diff; |
5020 | } | |
5021 | else { | |
5022 | if (after) { /* anything to pull down? */ | |
5023 | src = AvARRAY(ary) + offset + length; | |
5024 | dst = src + diff; /* diff is negative */ | |
5025 | Move(src, dst, after, SV*); | |
79072805 | 5026 | } |
93965878 | 5027 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5028 | /* avoid later double free */ |
5029 | } | |
5030 | i = -diff; | |
5031 | while (i) | |
3280af22 | 5032 | dst[--i] = &PL_sv_undef; |
a0d0e21e LW |
5033 | |
5034 | if (newlen) { | |
50528de0 | 5035 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5036 | Safefree(tmparyval); |
5037 | } | |
5038 | } | |
5039 | else { /* no, expanding (or same) */ | |
d3961450 | 5040 | SV** tmparyval = NULL; |
a0d0e21e | 5041 | if (length) { |
a02a5408 | 5042 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5043 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5044 | } | |
5045 | ||
5046 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5047 | /* push up or down? */ |
a0d0e21e LW |
5048 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5049 | if (offset) { | |
5050 | src = AvARRAY(ary); | |
5051 | dst = src - diff; | |
5052 | Move(src, dst, offset, SV*); | |
79072805 | 5053 | } |
9c6bc640 | 5054 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5055 | AvMAX(ary) += diff; |
93965878 | 5056 | AvFILLp(ary) += diff; |
79072805 LW |
5057 | } |
5058 | else { | |
93965878 NIS |
5059 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5060 | av_extend(ary, AvFILLp(ary) + diff); | |
5061 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5062 | |
5063 | if (after) { | |
93965878 | 5064 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5065 | src = dst - diff; |
5066 | for (i = after; i; i--) { | |
5067 | *dst-- = *src--; | |
5068 | } | |
79072805 LW |
5069 | } |
5070 | } | |
a0d0e21e LW |
5071 | } |
5072 | ||
50528de0 WL |
5073 | if (newlen) { |
5074 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5075 | } |
50528de0 | 5076 | |
a0d0e21e LW |
5077 | MARK = ORIGMARK + 1; |
5078 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
5079 | if (length) { | |
5080 | Copy(tmparyval, MARK, length, SV*); | |
5081 | if (AvREAL(ary)) { | |
bbce6d69 | 5082 | EXTEND_MORTAL(length); |
36477c24 | 5083 | for (i = length, dst = MARK; i; i--) { |
486ec47a | 5084 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5085 | dst++; |
5086 | } | |
79072805 LW |
5087 | } |
5088 | } | |
a0d0e21e LW |
5089 | MARK += length - 1; |
5090 | } | |
5091 | else if (length--) { | |
5092 | *MARK = tmparyval[length]; | |
5093 | if (AvREAL(ary)) { | |
d689ffdd | 5094 | sv_2mortal(*MARK); |
a0d0e21e LW |
5095 | while (length-- > 0) |
5096 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5097 | } |
79072805 | 5098 | } |
a0d0e21e | 5099 | else |
3280af22 | 5100 | *MARK = &PL_sv_undef; |
d3961450 | 5101 | Safefree(tmparyval); |
79072805 | 5102 | } |
474af990 FR |
5103 | |
5104 | if (SvMAGICAL(ary)) | |
5105 | mg_set(MUTABLE_SV(ary)); | |
5106 | ||
a0d0e21e | 5107 | SP = MARK; |
79072805 LW |
5108 | RETURN; |
5109 | } | |
5110 | ||
a0d0e21e | 5111 | PP(pp_push) |
79072805 | 5112 | { |
27da23d5 | 5113 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
d4fc4415 | 5114 | register AV * const ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5115 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5116 | |
1b6737cc | 5117 | if (mg) { |
ad64d0ec | 5118 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5119 | PUSHMARK(MARK); |
5120 | PUTBACK; | |
d343c3ef | 5121 | ENTER_with_name("call_PUSH"); |
864dbfa3 | 5122 | call_method("PUSH",G_SCALAR|G_DISCARD); |
d343c3ef | 5123 | LEAVE_with_name("call_PUSH"); |
93965878 | 5124 | SPAGAIN; |
93965878 | 5125 | } |
a60c0954 | 5126 | else { |
89c14e2e | 5127 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5128 | for (++MARK; MARK <= SP; MARK++) { |
561b68a9 | 5129 | SV * const sv = newSV(0); |
a60c0954 NIS |
5130 | if (*MARK) |
5131 | sv_setsv(sv, *MARK); | |
0a75904b | 5132 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5133 | } |
354b0578 | 5134 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5135 | mg_set(MUTABLE_SV(ary)); |
89c14e2e BB |
5136 | |
5137 | PL_delaymagic = 0; | |
6eeabd23 VP |
5138 | } |
5139 | SP = ORIGMARK; | |
5140 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5141 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5142 | } |
79072805 LW |
5143 | RETURN; |
5144 | } | |
5145 | ||
a0d0e21e | 5146 | PP(pp_shift) |
79072805 | 5147 | { |
97aff369 | 5148 | dVAR; |
39644a26 | 5149 | dSP; |
538f5756 | 5150 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
d4fc4415 | 5151 | ? MUTABLE_AV(GvAV(PL_defgv)) : DEREF_PLAIN_ARRAY(MUTABLE_AV(POPs)); |
789b4bc9 | 5152 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5153 | EXTEND(SP, 1); |
c2b4a044 | 5154 | assert (sv); |
d689ffdd | 5155 | if (AvREAL(av)) |
a0d0e21e LW |
5156 | (void)sv_2mortal(sv); |
5157 | PUSHs(sv); | |
79072805 | 5158 | RETURN; |
79072805 LW |
5159 | } |
5160 | ||
a0d0e21e | 5161 | PP(pp_unshift) |
79072805 | 5162 | { |
27da23d5 | 5163 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
d4fc4415 | 5164 | register AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5165 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5166 | |
1b6737cc | 5167 | if (mg) { |
ad64d0ec | 5168 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5169 | PUSHMARK(MARK); |
93965878 | 5170 | PUTBACK; |
d343c3ef | 5171 | ENTER_with_name("call_UNSHIFT"); |
864dbfa3 | 5172 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
d343c3ef | 5173 | LEAVE_with_name("call_UNSHIFT"); |
93965878 | 5174 | SPAGAIN; |
93965878 | 5175 | } |
a60c0954 | 5176 | else { |
1b6737cc | 5177 | register I32 i = 0; |
a60c0954 NIS |
5178 | av_unshift(ary, SP - MARK); |
5179 | while (MARK < SP) { | |
1b6737cc | 5180 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5181 | (void)av_store(ary, i++, sv); |
5182 | } | |
79072805 | 5183 | } |
a0d0e21e | 5184 | SP = ORIGMARK; |
6eeabd23 | 5185 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5186 | PUSHi( AvFILL(ary) + 1 ); |
5187 | } | |
79072805 | 5188 | RETURN; |
79072805 LW |
5189 | } |
5190 | ||
a0d0e21e | 5191 | PP(pp_reverse) |
79072805 | 5192 | { |
97aff369 | 5193 | dVAR; dSP; dMARK; |
79072805 | 5194 | |
a0d0e21e | 5195 | if (GIMME == G_ARRAY) { |
484c818f VP |
5196 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5197 | AV *av; | |
5198 | ||
5199 | /* See pp_sort() */ | |
5200 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5201 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5202 | av = MUTABLE_AV((*SP)); | |
5203 | /* In-place reversing only happens in void context for the array | |
5204 | * assignment. We don't need to push anything on the stack. */ | |
5205 | SP = MARK; | |
5206 | ||
5207 | if (SvMAGICAL(av)) { | |
5208 | I32 i, j; | |
5209 | register SV *tmp = sv_newmortal(); | |
5210 | /* For SvCANEXISTDELETE */ | |
5211 | HV *stash; | |
5212 | const MAGIC *mg; | |
5213 | bool can_preserve = SvCANEXISTDELETE(av); | |
5214 | ||
5215 | for (i = 0, j = av_len(av); i < j; ++i, --j) { | |
5216 | register SV *begin, *end; | |
5217 | ||
5218 | if (can_preserve) { | |
5219 | if (!av_exists(av, i)) { | |
5220 | if (av_exists(av, j)) { | |
5221 | register SV *sv = av_delete(av, j, 0); | |
5222 | begin = *av_fetch(av, i, TRUE); | |
5223 | sv_setsv_mg(begin, sv); | |
5224 | } | |
5225 | continue; | |
5226 | } | |
5227 | else if (!av_exists(av, j)) { | |
5228 | register SV *sv = av_delete(av, i, 0); | |
5229 | end = *av_fetch(av, j, TRUE); | |
5230 | sv_setsv_mg(end, sv); | |
5231 | continue; | |
5232 | } | |
5233 | } | |
5234 | ||
5235 | begin = *av_fetch(av, i, TRUE); | |
5236 | end = *av_fetch(av, j, TRUE); | |
5237 | sv_setsv(tmp, begin); | |
5238 | sv_setsv_mg(begin, end); | |
5239 | sv_setsv_mg(end, tmp); | |
5240 | } | |
5241 | } | |
5242 | else { | |
5243 | SV **begin = AvARRAY(av); | |
484c818f | 5244 | |
95a26d8e VP |
5245 | if (begin) { |
5246 | SV **end = begin + AvFILLp(av); | |
5247 | ||
5248 | while (begin < end) { | |
5249 | register SV * const tmp = *begin; | |
5250 | *begin++ = *end; | |
5251 | *end-- = tmp; | |
5252 | } | |
484c818f VP |
5253 | } |
5254 | } | |
5255 | } | |
5256 | else { | |
5257 | SV **oldsp = SP; | |
5258 | MARK++; | |
5259 | while (MARK < SP) { | |
5260 | register SV * const tmp = *MARK; | |
5261 | *MARK++ = *SP; | |
5262 | *SP-- = tmp; | |
5263 | } | |
5264 | /* safe as long as stack cannot get extended in the above */ | |
5265 | SP = oldsp; | |
a0d0e21e | 5266 | } |
79072805 LW |
5267 | } |
5268 | else { | |
a0d0e21e LW |
5269 | register char *up; |
5270 | register char *down; | |
5271 | register I32 tmp; | |
5272 | dTARGET; | |
5273 | STRLEN len; | |
79072805 | 5274 | |
7e2040f0 | 5275 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5276 | if (SP - MARK > 1) |
3280af22 | 5277 | do_join(TARG, &PL_sv_no, MARK, SP); |
1e21d011 | 5278 | else { |
789bd863 | 5279 | sv_setsv(TARG, SP > MARK ? *SP : find_rundefsv()); |
1e21d011 B |
5280 | if (! SvOK(TARG) && ckWARN(WARN_UNINITIALIZED)) |
5281 | report_uninit(TARG); | |
5282 | } | |
5283 | ||
a0d0e21e LW |
5284 | up = SvPV_force(TARG, len); |
5285 | if (len > 1) { | |
7e2040f0 | 5286 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5287 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5288 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5289 | while (s < send) { |
d742c382 | 5290 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5291 | s++; |
5292 | continue; | |
5293 | } | |
5294 | else { | |
9041c2e3 | 5295 | if (!utf8_to_uvchr(s, 0)) |
a0dbb045 | 5296 | break; |
dfe13c55 | 5297 | up = (char*)s; |
a0ed51b3 | 5298 | s += UTF8SKIP(s); |
dfe13c55 | 5299 | down = (char*)(s - 1); |
a0dbb045 | 5300 | /* reverse this character */ |
a0ed51b3 LW |
5301 | while (down > up) { |
5302 | tmp = *up; | |
5303 | *up++ = *down; | |
eb160463 | 5304 | *down-- = (char)tmp; |
a0ed51b3 LW |
5305 | } |
5306 | } | |
5307 | } | |
5308 | up = SvPVX(TARG); | |
5309 | } | |
a0d0e21e LW |
5310 | down = SvPVX(TARG) + len - 1; |
5311 | while (down > up) { | |
5312 | tmp = *up; | |
5313 | *up++ = *down; | |
eb160463 | 5314 | *down-- = (char)tmp; |
a0d0e21e | 5315 | } |
3aa33fe5 | 5316 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5317 | } |
a0d0e21e LW |
5318 | SP = MARK + 1; |
5319 | SETTARG; | |
79072805 | 5320 | } |
a0d0e21e | 5321 | RETURN; |
79072805 LW |
5322 | } |
5323 | ||
a0d0e21e | 5324 | PP(pp_split) |
79072805 | 5325 | { |
27da23d5 | 5326 | dVAR; dSP; dTARG; |
a0d0e21e | 5327 | AV *ary; |
467f0320 | 5328 | register IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5329 | SV * const sv = POPs; |
a0d0e21e | 5330 | STRLEN len; |
727b7506 | 5331 | register const char *s = SvPV_const(sv, len); |
1b6737cc | 5332 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 5333 | const char *strend = s + len; |
44a8e56a | 5334 | register PMOP *pm; |
d9f97599 | 5335 | register REGEXP *rx; |
a0d0e21e | 5336 | register SV *dstr; |
727b7506 | 5337 | register const char *m; |
a0d0e21e | 5338 | I32 iters = 0; |
bb7a0f54 | 5339 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (STRLEN)(strend - s); |
792b2c16 | 5340 | I32 maxiters = slen + 10; |
c1a7495a | 5341 | I32 trailing_empty = 0; |
727b7506 | 5342 | const char *orig; |
1b6737cc | 5343 | const I32 origlimit = limit; |
a0d0e21e LW |
5344 | I32 realarray = 0; |
5345 | I32 base; | |
f54cb97a | 5346 | const I32 gimme = GIMME_V; |
941446f6 | 5347 | bool gimme_scalar; |
f54cb97a | 5348 | const I32 oldsave = PL_savestack_ix; |
437d3b4e | 5349 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5350 | bool multiline = 0; |
b37c2d43 | 5351 | MAGIC *mg = NULL; |
79072805 | 5352 | |
44a8e56a | 5353 | #ifdef DEBUGGING |
5354 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
5355 | #else | |
5356 | pm = (PMOP*)POPs; | |
5357 | #endif | |
a0d0e21e | 5358 | if (!pm || !s) |
2269b42e | 5359 | DIE(aTHX_ "panic: pp_split"); |
aaa362c4 | 5360 | rx = PM_GETRE(pm); |
bbce6d69 | 5361 | |
a62b1201 | 5362 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
07bc277f | 5363 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5364 | |
a30b2f1f | 5365 | RX_MATCH_UTF8_set(rx, do_utf8); |
d9f424b2 | 5366 | |
971a9dd3 | 5367 | #ifdef USE_ITHREADS |
20e98b0f | 5368 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
159b6efe | 5369 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
20e98b0f | 5370 | } |
971a9dd3 | 5371 | #else |
20e98b0f NC |
5372 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
5373 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
971a9dd3 | 5374 | } |
20e98b0f | 5375 | #endif |
79072805 | 5376 | else |
7d49f689 | 5377 | ary = NULL; |
a0d0e21e LW |
5378 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
5379 | realarray = 1; | |
8ec5e241 | 5380 | PUTBACK; |
a0d0e21e LW |
5381 | av_extend(ary,0); |
5382 | av_clear(ary); | |
8ec5e241 | 5383 | SPAGAIN; |
ad64d0ec | 5384 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5385 | PUSHMARK(SP); |
ad64d0ec | 5386 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5387 | } |
5388 | else { | |
1c0b011c | 5389 | if (!AvREAL(ary)) { |
1b6737cc | 5390 | I32 i; |
1c0b011c | 5391 | AvREAL_on(ary); |
abff13bb | 5392 | AvREIFY_off(ary); |
1c0b011c | 5393 | for (i = AvFILLp(ary); i >= 0; i--) |
3280af22 | 5394 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5395 | } |
5396 | /* temporarily switch stacks */ | |
8b7059b1 | 5397 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5398 | make_mortal = 0; |
1c0b011c | 5399 | } |
79072805 | 5400 | } |
3280af22 | 5401 | base = SP - PL_stack_base; |
a0d0e21e | 5402 | orig = s; |
07bc277f | 5403 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e TS |
5404 | if (do_utf8) { |
5405 | while (*s == ' ' || is_utf8_space((U8*)s)) | |
5406 | s += UTF8SKIP(s); | |
5407 | } | |
a62b1201 | 5408 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
bbce6d69 | 5409 | while (isSPACE_LC(*s)) |
5410 | s++; | |
5411 | } | |
5412 | else { | |
5413 | while (isSPACE(*s)) | |
5414 | s++; | |
5415 | } | |
a0d0e21e | 5416 | } |
73134a2e | 5417 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5418 | multiline = 1; |
c07a80fd | 5419 | } |
5420 | ||
941446f6 FC |
5421 | gimme_scalar = gimme == G_SCALAR && !ary; |
5422 | ||
a0d0e21e LW |
5423 | if (!limit) |
5424 | limit = maxiters + 2; | |
07bc277f | 5425 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5426 | while (--limit) { |
bbce6d69 | 5427 | m = s; |
8727f688 YO |
5428 | /* this one uses 'm' and is a negative test */ |
5429 | if (do_utf8) { | |
613f191e TS |
5430 | while (m < strend && !( *m == ' ' || is_utf8_space((U8*)m) )) { |
5431 | const int t = UTF8SKIP(m); | |
5432 | /* is_utf8_space returns FALSE for malform utf8 */ | |
5433 | if (strend - m < t) | |
5434 | m = strend; | |
5435 | else | |
5436 | m += t; | |
5437 | } | |
a62b1201 KW |
5438 | } |
5439 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { | |
8727f688 YO |
5440 | while (m < strend && !isSPACE_LC(*m)) |
5441 | ++m; | |
5442 | } else { | |
5443 | while (m < strend && !isSPACE(*m)) | |
5444 | ++m; | |
5445 | } | |
a0d0e21e LW |
5446 | if (m >= strend) |
5447 | break; | |
bbce6d69 | 5448 | |
c1a7495a BB |
5449 | if (gimme_scalar) { |
5450 | iters++; | |
5451 | if (m-s == 0) | |
5452 | trailing_empty++; | |
5453 | else | |
5454 | trailing_empty = 0; | |
5455 | } else { | |
5456 | dstr = newSVpvn_flags(s, m-s, | |
5457 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5458 | XPUSHs(dstr); | |
5459 | } | |
bbce6d69 | 5460 | |
613f191e TS |
5461 | /* skip the whitespace found last */ |
5462 | if (do_utf8) | |
5463 | s = m + UTF8SKIP(m); | |
5464 | else | |
5465 | s = m + 1; | |
5466 | ||
8727f688 YO |
5467 | /* this one uses 's' and is a positive test */ |
5468 | if (do_utf8) { | |
613f191e | 5469 | while (s < strend && ( *s == ' ' || is_utf8_space((U8*)s) )) |
8727f688 | 5470 | s += UTF8SKIP(s); |
a62b1201 KW |
5471 | } |
5472 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { | |
8727f688 YO |
5473 | while (s < strend && isSPACE_LC(*s)) |
5474 | ++s; | |
5475 | } else { | |
5476 | while (s < strend && isSPACE(*s)) | |
5477 | ++s; | |
5478 | } | |
79072805 LW |
5479 | } |
5480 | } | |
07bc277f | 5481 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5482 | while (--limit) { |
a6e20a40 AL |
5483 | for (m = s; m < strend && *m != '\n'; m++) |
5484 | ; | |
a0d0e21e LW |
5485 | m++; |
5486 | if (m >= strend) | |
5487 | break; | |
c1a7495a BB |
5488 | |
5489 | if (gimme_scalar) { | |
5490 | iters++; | |
5491 | if (m-s == 0) | |
5492 | trailing_empty++; | |
5493 | else | |
5494 | trailing_empty = 0; | |
5495 | } else { | |
5496 | dstr = newSVpvn_flags(s, m-s, | |
5497 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5498 | XPUSHs(dstr); | |
5499 | } | |
a0d0e21e LW |
5500 | s = m; |
5501 | } | |
5502 | } | |
07bc277f | 5503 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5504 | /* |
5505 | Pre-extend the stack, either the number of bytes or | |
5506 | characters in the string or a limited amount, triggered by: | |
5507 | ||
5508 | my ($x, $y) = split //, $str; | |
5509 | or | |
5510 | split //, $str, $i; | |
5511 | */ | |
c1a7495a BB |
5512 | if (!gimme_scalar) { |
5513 | const U32 items = limit - 1; | |
5514 | if (items < slen) | |
5515 | EXTEND(SP, items); | |
5516 | else | |
5517 | EXTEND(SP, slen); | |
5518 | } | |
640f820d | 5519 | |
e9515b0f AB |
5520 | if (do_utf8) { |
5521 | while (--limit) { | |
5522 | /* keep track of how many bytes we skip over */ | |
5523 | m = s; | |
640f820d | 5524 | s += UTF8SKIP(s); |
c1a7495a BB |
5525 | if (gimme_scalar) { |
5526 | iters++; | |
5527 | if (s-m == 0) | |
5528 | trailing_empty++; | |
5529 | else | |
5530 | trailing_empty = 0; | |
5531 | } else { | |
5532 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5533 | |
c1a7495a BB |
5534 | PUSHs(dstr); |
5535 | } | |
640f820d | 5536 | |
e9515b0f AB |
5537 | if (s >= strend) |
5538 | break; | |
5539 | } | |
5540 | } else { | |
5541 | while (--limit) { | |
c1a7495a BB |
5542 | if (gimme_scalar) { |
5543 | iters++; | |
5544 | } else { | |
5545 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5546 | |
e9515b0f | 5547 | |
c1a7495a BB |
5548 | if (make_mortal) |
5549 | sv_2mortal(dstr); | |
640f820d | 5550 | |
c1a7495a BB |
5551 | PUSHs(dstr); |
5552 | } | |
5553 | ||
5554 | s++; | |
e9515b0f AB |
5555 | |
5556 | if (s >= strend) | |
5557 | break; | |
5558 | } | |
640f820d AB |
5559 | } |
5560 | } | |
3c8556c3 | 5561 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5562 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5563 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
5564 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
5565 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
f9f4320a | 5566 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5567 | |
07bc277f | 5568 | len = RX_MINLENRET(rx); |
3c8556c3 | 5569 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5570 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5571 | while (--limit) { |
a6e20a40 AL |
5572 | for (m = s; m < strend && *m != c; m++) |
5573 | ; | |
a0d0e21e LW |
5574 | if (m >= strend) |
5575 | break; | |
c1a7495a BB |
5576 | if (gimme_scalar) { |
5577 | iters++; | |
5578 | if (m-s == 0) | |
5579 | trailing_empty++; | |
5580 | else | |
5581 | trailing_empty = 0; | |
5582 | } else { | |
5583 | dstr = newSVpvn_flags(s, m-s, | |
5584 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5585 | XPUSHs(dstr); | |
5586 | } | |
93f04dac JH |
5587 | /* The rx->minlen is in characters but we want to step |
5588 | * s ahead by bytes. */ | |
1aa99e6b IH |
5589 | if (do_utf8) |
5590 | s = (char*)utf8_hop((U8*)m, len); | |
5591 | else | |
5592 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5593 | } |
5594 | } | |
5595 | else { | |
a0d0e21e | 5596 | while (s < strend && --limit && |
f722798b | 5597 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5598 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5599 | { |
c1a7495a BB |
5600 | if (gimme_scalar) { |
5601 | iters++; | |
5602 | if (m-s == 0) | |
5603 | trailing_empty++; | |
5604 | else | |
5605 | trailing_empty = 0; | |
5606 | } else { | |
5607 | dstr = newSVpvn_flags(s, m-s, | |
5608 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5609 | XPUSHs(dstr); | |
5610 | } | |
93f04dac JH |
5611 | /* The rx->minlen is in characters but we want to step |
5612 | * s ahead by bytes. */ | |
1aa99e6b IH |
5613 | if (do_utf8) |
5614 | s = (char*)utf8_hop((U8*)m, len); | |
5615 | else | |
5616 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 5617 | } |
463ee0b2 | 5618 | } |
463ee0b2 | 5619 | } |
a0d0e21e | 5620 | else { |
07bc277f | 5621 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 5622 | while (s < strend && --limit) |
bbce6d69 | 5623 | { |
1b6737cc | 5624 | I32 rex_return; |
080c2dec | 5625 | PUTBACK; |
f9f4320a | 5626 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1 , |
bfafcb9a | 5627 | sv, NULL, SvSCREAM(sv) ? REXEC_SCREAM : 0); |
080c2dec | 5628 | SPAGAIN; |
1b6737cc | 5629 | if (rex_return == 0) |
080c2dec | 5630 | break; |
d9f97599 | 5631 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
07bc277f | 5632 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
5633 | m = s; |
5634 | s = orig; | |
07bc277f | 5635 | orig = RX_SUBBEG(rx); |
a0d0e21e LW |
5636 | s = orig + (m - s); |
5637 | strend = s + (strend - m); | |
5638 | } | |
07bc277f | 5639 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
5640 | |
5641 | if (gimme_scalar) { | |
5642 | iters++; | |
5643 | if (m-s == 0) | |
5644 | trailing_empty++; | |
5645 | else | |
5646 | trailing_empty = 0; | |
5647 | } else { | |
5648 | dstr = newSVpvn_flags(s, m-s, | |
5649 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5650 | XPUSHs(dstr); | |
5651 | } | |
07bc277f | 5652 | if (RX_NPARENS(rx)) { |
1b6737cc | 5653 | I32 i; |
07bc277f NC |
5654 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
5655 | s = RX_OFFS(rx)[i].start + orig; | |
5656 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
5657 | |
5658 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
5659 | parens that didn't match -- they should be set to | |
5660 | undef, not the empty string */ | |
c1a7495a BB |
5661 | if (gimme_scalar) { |
5662 | iters++; | |
5663 | if (m-s == 0) | |
5664 | trailing_empty++; | |
5665 | else | |
5666 | trailing_empty = 0; | |
5667 | } else { | |
5668 | if (m >= orig && s >= orig) { | |
5669 | dstr = newSVpvn_flags(s, m-s, | |
5670 | (do_utf8 ? SVf_UTF8 : 0) | |
5671 | | make_mortal); | |
5672 | } | |
5673 | else | |
5674 | dstr = &PL_sv_undef; /* undef, not "" */ | |
5675 | XPUSHs(dstr); | |
748a9306 | 5676 | } |
c1a7495a | 5677 | |
a0d0e21e LW |
5678 | } |
5679 | } | |
07bc277f | 5680 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 5681 | } |
79072805 | 5682 | } |
8ec5e241 | 5683 | |
c1a7495a BB |
5684 | if (!gimme_scalar) { |
5685 | iters = (SP - PL_stack_base) - base; | |
5686 | } | |
a0d0e21e | 5687 | if (iters > maxiters) |
cea2e8a9 | 5688 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 5689 | |
a0d0e21e LW |
5690 | /* keep field after final delim? */ |
5691 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
5692 | if (!gimme_scalar) { |
5693 | const STRLEN l = strend - s; | |
5694 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5695 | XPUSHs(dstr); | |
5696 | } | |
a0d0e21e | 5697 | iters++; |
79072805 | 5698 | } |
a0d0e21e | 5699 | else if (!origlimit) { |
c1a7495a BB |
5700 | if (gimme_scalar) { |
5701 | iters -= trailing_empty; | |
5702 | } else { | |
5703 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
5704 | if (TOPs && !make_mortal) | |
5705 | sv_2mortal(TOPs); | |
5706 | *SP-- = &PL_sv_undef; | |
5707 | iters--; | |
5708 | } | |
89900bd3 | 5709 | } |
a0d0e21e | 5710 | } |
8ec5e241 | 5711 | |
8b7059b1 DM |
5712 | PUTBACK; |
5713 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
5714 | SPAGAIN; | |
a0d0e21e | 5715 | if (realarray) { |
8ec5e241 | 5716 | if (!mg) { |
1c0b011c NIS |
5717 | if (SvSMAGICAL(ary)) { |
5718 | PUTBACK; | |
ad64d0ec | 5719 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
5720 | SPAGAIN; |
5721 | } | |
5722 | if (gimme == G_ARRAY) { | |
5723 | EXTEND(SP, iters); | |
5724 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
5725 | SP += iters; | |
5726 | RETURN; | |
5727 | } | |
8ec5e241 | 5728 | } |
1c0b011c | 5729 | else { |
fb73857a | 5730 | PUTBACK; |
d343c3ef | 5731 | ENTER_with_name("call_PUSH"); |
864dbfa3 | 5732 | call_method("PUSH",G_SCALAR|G_DISCARD); |
d343c3ef | 5733 | LEAVE_with_name("call_PUSH"); |
fb73857a | 5734 | SPAGAIN; |
8ec5e241 | 5735 | if (gimme == G_ARRAY) { |
1b6737cc | 5736 | I32 i; |
8ec5e241 NIS |
5737 | /* EXTEND should not be needed - we just popped them */ |
5738 | EXTEND(SP, iters); | |
5739 | for (i=0; i < iters; i++) { | |
5740 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 5741 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 5742 | } |
1c0b011c NIS |
5743 | RETURN; |
5744 | } | |
a0d0e21e LW |
5745 | } |
5746 | } | |
5747 | else { | |
5748 | if (gimme == G_ARRAY) | |
5749 | RETURN; | |
5750 | } | |
7f18b612 YST |
5751 | |
5752 | GETTARGET; | |
5753 | PUSHi(iters); | |
5754 | RETURN; | |
79072805 | 5755 | } |
85e6fe83 | 5756 | |
c5917253 NC |
5757 | PP(pp_once) |
5758 | { | |
5759 | dSP; | |
5760 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
5761 | ||
5762 | if (SvPADSTALE(sv)) { | |
5763 | /* First time. */ | |
5764 | SvPADSTALE_off(sv); | |
5765 | RETURNOP(cLOGOP->op_other); | |
5766 | } | |
5767 | RETURNOP(cLOGOP->op_next); | |
5768 | } | |
5769 | ||
c0329465 MB |
5770 | PP(pp_lock) |
5771 | { | |
97aff369 | 5772 | dVAR; |
39644a26 | 5773 | dSP; |
c0329465 | 5774 | dTOPss; |
e55aaa0e | 5775 | SV *retsv = sv; |
68795e93 | 5776 | SvLOCK(sv); |
f79aa60b FC |
5777 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
5778 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
5779 | retsv = refto(retsv); |
5780 | } | |
5781 | SETs(retsv); | |
c0329465 MB |
5782 | RETURN; |
5783 | } | |
a863c7d1 | 5784 | |
65bca31a NC |
5785 | |
5786 | PP(unimplemented_op) | |
5787 | { | |
97aff369 | 5788 | dVAR; |
361ed549 NC |
5789 | const Optype op_type = PL_op->op_type; |
5790 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
5791 | with out of range op numbers - it only "special" cases op_custom. | |
5792 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
5793 | if we get here for a custom op then that means that the custom op didn't | |
5794 | have an implementation. Given that OP_NAME() looks up the custom op | |
5795 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
5796 | registers &PL_unimplemented_op as the address of their custom op. | |
5797 | NULL doesn't generate a useful error message. "custom" does. */ | |
5798 | const char *const name = op_type >= OP_max | |
5799 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
5800 | if(OP_IS_SOCKET(op_type)) |
5801 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 5802 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
5803 | } |
5804 | ||
867fa1e2 YO |
5805 | PP(pp_boolkeys) |
5806 | { | |
5807 | dVAR; | |
5808 | dSP; | |
5809 | HV * const hv = (HV*)POPs; | |
5810 | ||
fd1d9b5c FC |
5811 | if (SvTYPE(hv) != SVt_PVHV) { XPUSHs(&PL_sv_no); RETURN; } |
5812 | ||
867fa1e2 YO |
5813 | if (SvRMAGICAL(hv)) { |
5814 | MAGIC * const mg = mg_find((SV*)hv, PERL_MAGIC_tied); | |
5815 | if (mg) { | |
5816 | XPUSHs(magic_scalarpack(hv, mg)); | |
5817 | RETURN; | |
5818 | } | |
5819 | } | |
5820 | ||
1b95d04f | 5821 | XPUSHs(boolSV(HvUSEDKEYS(hv) != 0)); |
867fa1e2 YO |
5822 | RETURN; |
5823 | } | |
5824 | ||
deb8a388 FC |
5825 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
5826 | PP(pp_coreargs) | |
5827 | { | |
5828 | dSP; | |
7fa5bd9b | 5829 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
19c481f4 | 5830 | int defgv = PL_opargs[opnum] & OA_DEFGV, whicharg = 0; |
7fa5bd9b | 5831 | AV * const at_ = GvAV(PL_defgv); |
46e00a91 | 5832 | SV **svp = AvARRAY(at_); |
19c481f4 | 5833 | I32 minargs = 0, maxargs = 0, numargs = AvFILLp(at_)+1; |
7fa5bd9b | 5834 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 5835 | bool seen_question = 0; |
7fa5bd9b | 5836 | const char *err = NULL; |
3e6568b4 | 5837 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 5838 | |
46e00a91 FC |
5839 | /* Count how many args there are first, to get some idea how far to |
5840 | extend the stack. */ | |
7fa5bd9b | 5841 | while (oa) { |
bf0571fd | 5842 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 5843 | maxargs++; |
46e00a91 FC |
5844 | if (oa & OA_OPTIONAL) seen_question = 1; |
5845 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
5846 | oa >>= 4; |
5847 | } | |
5848 | ||
5849 | if(numargs < minargs) err = "Not enough"; | |
5850 | else if(numargs > maxargs) err = "Too many"; | |
5851 | if (err) | |
5852 | /* diag_listed_as: Too many arguments for %s */ | |
5853 | Perl_croak(aTHX_ | |
5854 | "%s arguments for %s", err, | |
5855 | opnum ? OP_DESC(PL_op->op_next) : SvPV_nolen_const(cSVOP_sv) | |
5856 | ); | |
5857 | ||
5858 | /* Reset the stack pointer. Without this, we end up returning our own | |
5859 | arguments in list context, in addition to the values we are supposed | |
5860 | to return. nextstate usually does this on sub entry, but we need | |
5861 | to run the next op with the caller’s hints, so we cannot have a | |
5862 | nextstate. */ | |
5863 | SP = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; | |
5864 | ||
46e00a91 FC |
5865 | if(!maxargs) RETURN; |
5866 | ||
bf0571fd FC |
5867 | /* We do this here, rather than with a separate pushmark op, as it has |
5868 | to come in between two things this function does (stack reset and | |
5869 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 5870 | if (pushmark) { |
bf0571fd FC |
5871 | PUTBACK; |
5872 | (void)Perl_pp_pushmark(aTHX); | |
5873 | } | |
5874 | ||
5875 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 5876 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
5877 | |
5878 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 5879 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 5880 | whicharg++; |
46e00a91 FC |
5881 | switch (oa & 7) { |
5882 | case OA_SCALAR: | |
d6d78e19 FC |
5883 | if (!numargs && defgv && whicharg == minargs + 1) { |
5884 | PERL_SI * const oldsi = PL_curstackinfo; | |
5885 | I32 const oldcxix = oldsi->si_cxix; | |
5886 | CV *caller; | |
5887 | if (oldcxix) oldsi->si_cxix--; | |
5888 | else PL_curstackinfo = oldsi->si_prev; | |
5889 | caller = find_runcv(NULL); | |
5890 | PL_curstackinfo = oldsi; | |
5891 | oldsi->si_cxix = oldcxix; | |
5892 | PUSHs(find_rundefsv2( | |
5893 | caller,cxstack[cxstack_ix].blk_oldcop->cop_seq | |
5894 | )); | |
5895 | } | |
5896 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 5897 | break; |
bf0571fd FC |
5898 | case OA_LIST: |
5899 | while (numargs--) { | |
5900 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
5901 | svp++; | |
5902 | } | |
5903 | RETURN; | |
19c481f4 FC |
5904 | case OA_HVREF: |
5905 | if (!svp || !*svp || !SvROK(*svp) | |
5906 | || SvTYPE(SvRV(*svp)) != SVt_PVHV) | |
5907 | DIE(aTHX_ | |
5908 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
5909 | "Type of arg %d to &CORE::%s must be hash reference", | |
5910 | whicharg, OP_DESC(PL_op->op_next) | |
5911 | ); | |
5912 | PUSHs(SvRV(*svp)); | |
5913 | break; | |
c931b036 | 5914 | case OA_FILEREF: |
30901a8a FC |
5915 | if (!numargs) PUSHs(NULL); |
5916 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
5917 | /* no magic here, as the prototype will have added an extra |
5918 | refgen and we just want what was there before that */ | |
5919 | PUSHs(SvRV(*svp)); | |
5920 | else { | |
5921 | const bool constr = PL_op->op_private & whicharg; | |
5922 | PUSHs(S_rv2gv(aTHX_ | |
5923 | svp && *svp ? *svp : &PL_sv_undef, | |
5924 | constr, CopHINTS_get(PL_curcop) & HINT_STRICT_REFS, | |
5925 | !constr | |
5926 | )); | |
5927 | } | |
5928 | break; | |
c72a5629 | 5929 | case OA_SCALARREF: |
17008668 FC |
5930 | { |
5931 | const bool wantscalar = | |
5932 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 5933 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
5934 | /* We have to permit globrefs even for the \$ proto, as |
5935 | *foo is indistinguishable from ${\*foo}, and the proto- | |
5936 | type permits the latter. */ | |
5937 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae FC |
5938 | wantscalar ? SVt_PVLV |
5939 | : opnum == OP_LOCK ? SVt_PVCV | |
5940 | : SVt_PVHV | |
17008668 | 5941 | ) |
c72a5629 FC |
5942 | ) |
5943 | DIE(aTHX_ | |
5944 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
17008668 FC |
5945 | "Type of arg %d to &CORE::%s must be %s", |
5946 | whicharg, OP_DESC(PL_op->op_next), | |
5947 | wantscalar | |
5948 | ? "scalar reference" | |
efe889ae FC |
5949 | : opnum == OP_LOCK |
5950 | ? "reference to one of [$@%&*]" | |
5951 | : "reference to one of [$@%*]" | |
c72a5629 FC |
5952 | ); |
5953 | PUSHs(SvRV(*svp)); | |
5954 | break; | |
17008668 | 5955 | } |
46e00a91 | 5956 | default: |
46e00a91 FC |
5957 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
5958 | } | |
5959 | oa = oa >> 4; | |
5960 | } | |
5961 | ||
deb8a388 FC |
5962 | RETURN; |
5963 | } | |
5964 | ||
e609e586 NC |
5965 | /* |
5966 | * Local variables: | |
5967 | * c-indentation-style: bsd | |
5968 | * c-basic-offset: 4 | |
5969 | * indent-tabs-mode: t | |
5970 | * End: | |
5971 | * | |
37442d52 RGS |
5972 | * ex: set ts=8 sts=4 sw=4 noet: |
5973 | */ |