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 | 31 | #include "reentr.h" |
685289b5 | 32 | #include "regcharclass.h" |
a4af207c | 33 | |
dfe9444c AD |
34 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
35 | it, since pid_t is an integral type. | |
36 | --AD 2/20/1998 | |
37 | */ | |
38 | #ifdef NEED_GETPID_PROTO | |
39 | extern Pid_t getpid (void); | |
8ac85365 NIS |
40 | #endif |
41 | ||
0630166f SP |
42 | /* |
43 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
44 | * This switches them over to IEEE. | |
45 | */ | |
46 | #if defined(LIBM_LIB_VERSION) | |
47 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
48 | #endif | |
49 | ||
a78bc3c6 KW |
50 | static const STRLEN small_mu_len = sizeof(GREEK_SMALL_LETTER_MU_UTF8) - 1; |
51 | static const STRLEN capital_iota_len = sizeof(GREEK_CAPITAL_LETTER_IOTA_UTF8) - 1; | |
52 | ||
13017935 SM |
53 | /* variations on pp_null */ |
54 | ||
93a17b20 LW |
55 | PP(pp_stub) |
56 | { | |
39644a26 | 57 | dSP; |
54310121 | 58 | if (GIMME_V == G_SCALAR) |
3280af22 | 59 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
60 | RETURN; |
61 | } | |
62 | ||
79072805 LW |
63 | /* Pushy stuff. */ |
64 | ||
bdaf10a5 | 65 | /* This is also called directly by pp_lvavref. */ |
93a17b20 LW |
66 | PP(pp_padav) |
67 | { | |
20b7effb | 68 | dSP; dTARGET; |
1c23e2bd | 69 | U8 gimme; |
e190e9b4 | 70 | assert(SvTYPE(TARG) == SVt_PVAV); |
3dbcc5e0 S |
71 | if (UNLIKELY( PL_op->op_private & OPpLVAL_INTRO )) |
72 | if (LIKELY( !(PL_op->op_private & OPpPAD_STATE) )) | |
a5911867 | 73 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
85e6fe83 | 74 | EXTEND(SP, 1); |
a46a7b6e | 75 | |
533c011a | 76 | if (PL_op->op_flags & OPf_REF) { |
85e6fe83 | 77 | PUSHs(TARG); |
93a17b20 | 78 | RETURN; |
a46a7b6e DM |
79 | } |
80 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
81 | const I32 flags = is_lvalue_sub(); | |
82 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
83 | if (GIMME_V == G_SCALAR) | |
84 | /* diag_listed_as: Can't return %s to lvalue scalar context */ | |
85 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
86 | PUSHs(TARG); | |
87 | RETURN; | |
40c94d11 | 88 | } |
85e6fe83 | 89 | } |
a46a7b6e | 90 | |
13017935 SM |
91 | gimme = GIMME_V; |
92 | if (gimme == G_ARRAY) { | |
d5524600 | 93 | /* XXX see also S_pushav in pp_hot.c */ |
052a7c76 | 94 | const SSize_t maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 | 95 | EXTEND(SP, maxarg); |
93965878 | 96 | if (SvMAGICAL(TARG)) { |
052a7c76 | 97 | SSize_t i; |
c70927a6 | 98 | for (i=0; i < maxarg; i++) { |
502c6561 | 99 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
3280af22 | 100 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
101 | } |
102 | } | |
103 | else { | |
052a7c76 DM |
104 | SSize_t i; |
105 | for (i=0; i < maxarg; i++) { | |
428ccf1e FC |
106 | SV * const sv = AvARRAY((const AV *)TARG)[i]; |
107 | SP[i+1] = sv ? sv : &PL_sv_undef; | |
108 | } | |
93965878 | 109 | } |
85e6fe83 LW |
110 | SP += maxarg; |
111 | } | |
13017935 | 112 | else if (gimme == G_SCALAR) { |
1b6737cc | 113 | SV* const sv = sv_newmortal(); |
c70927a6 | 114 | const SSize_t maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 LW |
115 | sv_setiv(sv, maxarg); |
116 | PUSHs(sv); | |
117 | } | |
118 | RETURN; | |
93a17b20 LW |
119 | } |
120 | ||
121 | PP(pp_padhv) | |
122 | { | |
20b7effb | 123 | dSP; dTARGET; |
1c23e2bd | 124 | U8 gimme; |
54310121 | 125 | |
e190e9b4 | 126 | assert(SvTYPE(TARG) == SVt_PVHV); |
93a17b20 | 127 | XPUSHs(TARG); |
3dbcc5e0 S |
128 | if (UNLIKELY( PL_op->op_private & OPpLVAL_INTRO )) |
129 | if (LIKELY( !(PL_op->op_private & OPpPAD_STATE) )) | |
a5911867 | 130 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
a46a7b6e | 131 | |
533c011a | 132 | if (PL_op->op_flags & OPf_REF) |
93a17b20 | 133 | RETURN; |
40c94d11 | 134 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
a46a7b6e DM |
135 | const I32 flags = is_lvalue_sub(); |
136 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
137 | if (GIMME_V == G_SCALAR) | |
138 | /* diag_listed_as: Can't return %s to lvalue scalar context */ | |
139 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
140 | RETURN; | |
141 | } | |
78f9721b | 142 | } |
a46a7b6e | 143 | |
54310121 | 144 | gimme = GIMME_V; |
145 | if (gimme == G_ARRAY) { | |
981b7185 | 146 | RETURNOP(Perl_do_kv(aTHX)); |
85e6fe83 | 147 | } |
c8fe3bdf | 148 | else if ((PL_op->op_private & OPpTRUEBOOL |
adc42c31 | 149 | || ( PL_op->op_private & OPpMAYBE_TRUEBOOL |
c8fe3bdf | 150 | && block_gimme() == G_VOID )) |
a46a7b6e DM |
151 | && (!SvRMAGICAL(TARG) || !mg_find(TARG, PERL_MAGIC_tied)) |
152 | ) | |
c8fe3bdf | 153 | SETs(HvUSEDKEYS(TARG) ? &PL_sv_yes : sv_2mortal(newSViv(0))); |
54310121 | 154 | else if (gimme == G_SCALAR) { |
85fbaab2 | 155 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
85e6fe83 | 156 | SETs(sv); |
85e6fe83 | 157 | } |
54310121 | 158 | RETURN; |
93a17b20 LW |
159 | } |
160 | ||
ac217057 FC |
161 | PP(pp_padcv) |
162 | { | |
20b7effb | 163 | dSP; dTARGET; |
97b03d64 FC |
164 | assert(SvTYPE(TARG) == SVt_PVCV); |
165 | XPUSHs(TARG); | |
166 | RETURN; | |
ac217057 FC |
167 | } |
168 | ||
ecf9c8b7 FC |
169 | PP(pp_introcv) |
170 | { | |
20b7effb | 171 | dTARGET; |
6d5c2147 FC |
172 | SvPADSTALE_off(TARG); |
173 | return NORMAL; | |
ecf9c8b7 FC |
174 | } |
175 | ||
13f89586 FC |
176 | PP(pp_clonecv) |
177 | { | |
20b7effb | 178 | dTARGET; |
0f94cb1f FC |
179 | CV * const protocv = PadnamePROTOCV( |
180 | PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG] | |
181 | ); | |
6d5c2147 | 182 | assert(SvTYPE(TARG) == SVt_PVCV); |
0f94cb1f FC |
183 | assert(protocv); |
184 | if (CvISXSUB(protocv)) { /* constant */ | |
6d5c2147 | 185 | /* XXX Should we clone it here? */ |
6d5c2147 FC |
186 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
187 | to introcv and remove the SvPADSTALE_off. */ | |
188 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
0f94cb1f | 189 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(protocv); |
6d5c2147 FC |
190 | } |
191 | else { | |
0f94cb1f FC |
192 | if (CvROOT(protocv)) { |
193 | assert(CvCLONE(protocv)); | |
194 | assert(!CvCLONED(protocv)); | |
6d5c2147 | 195 | } |
0f94cb1f | 196 | cv_clone_into(protocv,(CV *)TARG); |
6d5c2147 FC |
197 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
198 | } | |
199 | return NORMAL; | |
13f89586 FC |
200 | } |
201 | ||
79072805 LW |
202 | /* Translations. */ |
203 | ||
6f7909da FC |
204 | /* In some cases this function inspects PL_op. If this function is called |
205 | for new op types, more bool parameters may need to be added in place of | |
206 | the checks. | |
207 | ||
208 | When noinit is true, the absence of a gv will cause a retval of undef. | |
209 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
210 | */ |
211 | ||
212 | static SV * | |
213 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
214 | const bool noinit) | |
215 | { | |
f64c9ac5 | 216 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 217 | if (SvROK(sv)) { |
93d7320b DM |
218 | if (SvAMAGIC(sv)) { |
219 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 220 | } |
e4a1664f | 221 | wasref: |
ed6116ce | 222 | sv = SvRV(sv); |
b1dadf13 | 223 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 224 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 225 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 226 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 227 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 228 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 229 | } |
81d52ecd JH |
230 | else if (!isGV_with_GP(sv)) { |
231 | Perl_die(aTHX_ "Not a GLOB reference"); | |
232 | } | |
79072805 LW |
233 | } |
234 | else { | |
6e592b3a | 235 | if (!isGV_with_GP(sv)) { |
f132ae69 | 236 | if (!SvOK(sv)) { |
b13b2135 | 237 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 238 | * NI-S 1999/05/07 |
b13b2135 | 239 | */ |
f132ae69 | 240 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 241 | GV *gv; |
ce74145d | 242 | if (SvREADONLY(sv)) |
cb077ed2 | 243 | Perl_croak_no_modify(); |
2c8ac474 | 244 | if (cUNOP->op_targ) { |
0bd48802 | 245 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f FC |
246 | HV *stash = CopSTASH(PL_curcop); |
247 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
159b6efe | 248 | gv = MUTABLE_GV(newSV(0)); |
94e7eb6f | 249 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
250 | } |
251 | else { | |
0bd48802 | 252 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b | 253 | gv = newGVgen_flags(name, |
d14578b8 | 254 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); |
7bdb4ff0 | 255 | SvREFCNT_inc_simple_void_NN(gv); |
1d8d4d2a | 256 | } |
43230e26 | 257 | prepare_SV_for_RV(sv); |
ad64d0ec | 258 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 259 | SvROK_on(sv); |
1d8d4d2a | 260 | SvSETMAGIC(sv); |
853846ea | 261 | goto wasref; |
2c8ac474 | 262 | } |
81d52ecd JH |
263 | if (PL_op->op_flags & OPf_REF || strict) { |
264 | Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
265 | } | |
599cee73 | 266 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 267 | report_uninit(sv); |
6f7909da | 268 | return &PL_sv_undef; |
a0d0e21e | 269 | } |
6f7909da | 270 | if (noinit) |
35cd451c | 271 | { |
77cb3b01 FC |
272 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
273 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 274 | )))) |
6f7909da | 275 | return &PL_sv_undef; |
35cd451c GS |
276 | } |
277 | else { | |
81d52ecd JH |
278 | if (strict) { |
279 | Perl_die(aTHX_ | |
fedf30e1 | 280 | PL_no_symref_sv, |
81d52ecd JH |
281 | sv, |
282 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), | |
283 | "a symbol" | |
284 | ); | |
285 | } | |
e26df76a NC |
286 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
287 | == OPpDONT_INIT_GV) { | |
288 | /* We are the target of a coderef assignment. Return | |
289 | the scalar unchanged, and let pp_sasssign deal with | |
290 | things. */ | |
6f7909da | 291 | return sv; |
e26df76a | 292 | } |
77cb3b01 | 293 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 294 | } |
2acc3314 | 295 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 296 | SvFAKE_off(sv); |
93a17b20 | 297 | } |
79072805 | 298 | } |
8dc99089 | 299 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 300 | SV *newsv = sv_newmortal(); |
5cf4b255 | 301 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 302 | SvFAKE_off(newsv); |
d8906c05 | 303 | sv = newsv; |
2acc3314 | 304 | } |
6f7909da FC |
305 | return sv; |
306 | } | |
307 | ||
308 | PP(pp_rv2gv) | |
309 | { | |
20b7effb | 310 | dSP; dTOPss; |
6f7909da FC |
311 | |
312 | sv = S_rv2gv(aTHX_ | |
313 | sv, PL_op->op_private & OPpDEREF, | |
314 | PL_op->op_private & HINT_STRICT_REFS, | |
315 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
316 | || PL_op->op_type == OP_READLINE | |
317 | ); | |
d8906c05 FC |
318 | if (PL_op->op_private & OPpLVAL_INTRO) |
319 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
320 | SETs(sv); | |
79072805 LW |
321 | RETURN; |
322 | } | |
323 | ||
dc3c76f8 NC |
324 | /* Helper function for pp_rv2sv and pp_rv2av */ |
325 | GV * | |
fe9845cc RB |
326 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
327 | const svtype type, SV ***spp) | |
dc3c76f8 | 328 | { |
dc3c76f8 NC |
329 | GV *gv; |
330 | ||
7918f24d NC |
331 | PERL_ARGS_ASSERT_SOFTREF2XV; |
332 | ||
dc3c76f8 NC |
333 | if (PL_op->op_private & HINT_STRICT_REFS) { |
334 | if (SvOK(sv)) | |
fedf30e1 | 335 | Perl_die(aTHX_ PL_no_symref_sv, sv, |
bf3d870f | 336 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
337 | else |
338 | Perl_die(aTHX_ PL_no_usym, what); | |
339 | } | |
340 | if (!SvOK(sv)) { | |
fd1d9b5c | 341 | if ( |
c8fe3bdf | 342 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 343 | ) |
dc3c76f8 NC |
344 | Perl_die(aTHX_ PL_no_usym, what); |
345 | if (ckWARN(WARN_UNINITIALIZED)) | |
346 | report_uninit(sv); | |
347 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
348 | (*spp)--; | |
349 | return NULL; | |
350 | } | |
351 | **spp = &PL_sv_undef; | |
352 | return NULL; | |
353 | } | |
354 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
355 | !(PL_op->op_flags & OPf_MOD)) | |
356 | { | |
77cb3b01 | 357 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
358 | { |
359 | **spp = &PL_sv_undef; | |
360 | return NULL; | |
361 | } | |
362 | } | |
363 | else { | |
77cb3b01 | 364 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
365 | } |
366 | return gv; | |
367 | } | |
368 | ||
79072805 LW |
369 | PP(pp_rv2sv) |
370 | { | |
20b7effb | 371 | dSP; dTOPss; |
c445ea15 | 372 | GV *gv = NULL; |
79072805 | 373 | |
9026059d | 374 | SvGETMAGIC(sv); |
ed6116ce | 375 | if (SvROK(sv)) { |
93d7320b DM |
376 | if (SvAMAGIC(sv)) { |
377 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 378 | } |
f5284f61 | 379 | |
ed6116ce | 380 | sv = SvRV(sv); |
69f00f67 | 381 | if (SvTYPE(sv) >= SVt_PVAV) |
cea2e8a9 | 382 | DIE(aTHX_ "Not a SCALAR reference"); |
79072805 LW |
383 | } |
384 | else { | |
159b6efe | 385 | gv = MUTABLE_GV(sv); |
748a9306 | 386 | |
6e592b3a | 387 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
388 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
389 | if (!gv) | |
390 | RETURN; | |
463ee0b2 | 391 | } |
29c711a3 | 392 | sv = GvSVn(gv); |
a0d0e21e | 393 | } |
533c011a | 394 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
395 | if (PL_op->op_private & OPpLVAL_INTRO) { |
396 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 397 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
398 | else if (gv) |
399 | sv = save_scalar(gv); | |
400 | else | |
f1f66076 | 401 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 402 | } |
533c011a | 403 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 404 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 405 | } |
a0d0e21e | 406 | SETs(sv); |
79072805 LW |
407 | RETURN; |
408 | } | |
409 | ||
410 | PP(pp_av2arylen) | |
411 | { | |
20b7effb | 412 | dSP; |
502c6561 | 413 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
414 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
415 | if (lvalue) { | |
8160c8f5 DM |
416 | SV ** const svp = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); |
417 | if (!*svp) { | |
418 | *svp = newSV_type(SVt_PVMG); | |
419 | sv_magic(*svp, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
02d85cc3 | 420 | } |
8160c8f5 | 421 | SETs(*svp); |
02d85cc3 | 422 | } else { |
e1dccc0d | 423 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 424 | } |
79072805 LW |
425 | RETURN; |
426 | } | |
427 | ||
a0d0e21e LW |
428 | PP(pp_pos) |
429 | { | |
27a8dde8 | 430 | dSP; dTOPss; |
8ec5e241 | 431 | |
78f9721b | 432 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 433 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
434 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
435 | LvTYPE(ret) = '.'; | |
436 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
27a8dde8 | 437 | SETs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
438 | } |
439 | else { | |
96c2a8ff | 440 | const MAGIC * const mg = mg_find_mglob(sv); |
6174b39a | 441 | if (mg && mg->mg_len != -1) { |
2154eca7 | 442 | dTARGET; |
6174b39a | 443 | STRLEN i = mg->mg_len; |
25fdce4a | 444 | if (mg->mg_flags & MGf_BYTES && DO_UTF8(sv)) |
6174b39a | 445 | i = sv_pos_b2u_flags(sv, i, SV_GMAGIC|SV_CONST_RETURN); |
27a8dde8 FC |
446 | SETu(i); |
447 | return NORMAL; | |
a0d0e21e | 448 | } |
27a8dde8 | 449 | SETs(&PL_sv_undef); |
a0d0e21e | 450 | } |
27a8dde8 | 451 | return NORMAL; |
a0d0e21e LW |
452 | } |
453 | ||
79072805 LW |
454 | PP(pp_rv2cv) |
455 | { | |
20b7effb | 456 | dSP; |
79072805 | 457 | GV *gv; |
1eced8f8 | 458 | HV *stash_unused; |
c445ea15 | 459 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 460 | ? GV_ADDMG |
d14578b8 KW |
461 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
462 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
463 | ? GV_ADD|GV_NOEXPAND |
464 | : GV_ADD; | |
4633a7c4 LW |
465 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
466 | /* (But not in defined().) */ | |
e26df76a | 467 | |
1eced8f8 | 468 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 469 | if (cv) NOOP; |
e26df76a | 470 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
2eaf799e FC |
471 | cv = SvTYPE(SvRV(gv)) == SVt_PVCV |
472 | ? MUTABLE_CV(SvRV(gv)) | |
473 | : MUTABLE_CV(gv); | |
e26df76a | 474 | } |
07055b4c | 475 | else |
ea726b52 | 476 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 477 | SETs(MUTABLE_SV(cv)); |
3d79e3ee | 478 | return NORMAL; |
79072805 LW |
479 | } |
480 | ||
c07a80fd | 481 | PP(pp_prototype) |
482 | { | |
20b7effb | 483 | dSP; |
c07a80fd | 484 | CV *cv; |
485 | HV *stash; | |
486 | GV *gv; | |
fabdb6c0 | 487 | SV *ret = &PL_sv_undef; |
c07a80fd | 488 | |
6954f42f | 489 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 490 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 491 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 492 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 493 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
a96df643 | 494 | if (!code) |
147e3846 | 495 | DIE(aTHX_ "Can't find an opnumber for \"%" UTF8f "\"", |
b17a0679 | 496 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); |
4e338c21 | 497 | { |
b66130dd FC |
498 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
499 | if (sv) ret = sv; | |
500 | } | |
b8c38f0a | 501 | goto set; |
b6c543e3 IZ |
502 | } |
503 | } | |
f2c0649b | 504 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 505 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
506 | ret = newSVpvn_flags( |
507 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
508 | ); | |
b6c543e3 | 509 | set: |
c07a80fd | 510 | SETs(ret); |
511 | RETURN; | |
512 | } | |
513 | ||
a0d0e21e LW |
514 | PP(pp_anoncode) |
515 | { | |
20b7effb | 516 | dSP; |
ea726b52 | 517 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 518 | if (CvCLONE(cv)) |
ad64d0ec | 519 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 520 | EXTEND(SP,1); |
ad64d0ec | 521 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
522 | RETURN; |
523 | } | |
524 | ||
525 | PP(pp_srefgen) | |
79072805 | 526 | { |
20b7effb | 527 | dSP; |
71be2cbc | 528 | *SP = refto(*SP); |
3ed34c76 | 529 | return NORMAL; |
8ec5e241 | 530 | } |
a0d0e21e LW |
531 | |
532 | PP(pp_refgen) | |
533 | { | |
20b7effb | 534 | dSP; dMARK; |
82334630 | 535 | if (GIMME_V != G_ARRAY) { |
5f0b1d4e GS |
536 | if (++MARK <= SP) |
537 | *MARK = *SP; | |
538 | else | |
1d51ab6c FC |
539 | { |
540 | MEXTEND(SP, 1); | |
3280af22 | 541 | *MARK = &PL_sv_undef; |
1d51ab6c | 542 | } |
5f0b1d4e GS |
543 | *MARK = refto(*MARK); |
544 | SP = MARK; | |
545 | RETURN; | |
a0d0e21e | 546 | } |
bbce6d69 | 547 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 548 | while (++MARK <= SP) |
549 | *MARK = refto(*MARK); | |
a0d0e21e | 550 | RETURN; |
79072805 LW |
551 | } |
552 | ||
76e3520e | 553 | STATIC SV* |
cea2e8a9 | 554 | S_refto(pTHX_ SV *sv) |
71be2cbc | 555 | { |
556 | SV* rv; | |
557 | ||
7918f24d NC |
558 | PERL_ARGS_ASSERT_REFTO; |
559 | ||
71be2cbc | 560 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
561 | if (LvTARGLEN(sv)) | |
68dc0745 | 562 | vivify_defelem(sv); |
563 | if (!(sv = LvTARG(sv))) | |
3280af22 | 564 | sv = &PL_sv_undef; |
0dd88869 | 565 | else |
b37c2d43 | 566 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 567 | } |
d8b46c1b | 568 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
569 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
570 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 571 | SvTEMP_off(sv); |
b37c2d43 | 572 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 573 | } |
60779a30 | 574 | else if (SvPADTMP(sv)) { |
f2933f5f | 575 | sv = newSVsv(sv); |
60779a30 | 576 | } |
71be2cbc | 577 | else { |
578 | SvTEMP_off(sv); | |
b37c2d43 | 579 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 580 | } |
581 | rv = sv_newmortal(); | |
4df7f6af | 582 | sv_upgrade(rv, SVt_IV); |
b162af07 | 583 | SvRV_set(rv, sv); |
71be2cbc | 584 | SvROK_on(rv); |
585 | return rv; | |
586 | } | |
587 | ||
79072805 LW |
588 | PP(pp_ref) |
589 | { | |
3c1e67ac DD |
590 | dSP; |
591 | SV * const sv = TOPs; | |
f12c7020 | 592 | |
511ddbdf FC |
593 | SvGETMAGIC(sv); |
594 | if (!SvROK(sv)) | |
3c1e67ac DD |
595 | SETs(&PL_sv_no); |
596 | else { | |
597 | dTARGET; | |
598 | SETs(TARG); | |
599 | /* use the return value that is in a register, its the same as TARG */ | |
600 | TARG = sv_ref(TARG,SvRV(sv),TRUE); | |
601 | SvSETMAGIC(TARG); | |
602 | } | |
79072805 | 603 | |
3c1e67ac | 604 | return NORMAL; |
79072805 LW |
605 | } |
606 | ||
607 | PP(pp_bless) | |
608 | { | |
20b7effb | 609 | dSP; |
463ee0b2 | 610 | HV *stash; |
79072805 | 611 | |
463ee0b2 | 612 | if (MAXARG == 1) |
dcdfe746 | 613 | { |
c2f922f1 | 614 | curstash: |
11faa288 | 615 | stash = CopSTASH(PL_curcop); |
dcdfe746 FC |
616 | if (SvTYPE(stash) != SVt_PVHV) |
617 | Perl_croak(aTHX_ "Attempt to bless into a freed package"); | |
618 | } | |
7b8d334a | 619 | else { |
1b6737cc | 620 | SV * const ssv = POPs; |
7b8d334a | 621 | STRLEN len; |
e1ec3a88 | 622 | const char *ptr; |
81689caa | 623 | |
c2f922f1 | 624 | if (!ssv) goto curstash; |
8d9dd4b9 | 625 | SvGETMAGIC(ssv); |
c7ea825d FC |
626 | if (SvROK(ssv)) { |
627 | if (!SvAMAGIC(ssv)) { | |
628 | frog: | |
81689caa | 629 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
c7ea825d FC |
630 | } |
631 | /* SvAMAGIC is on here, but it only means potentially overloaded, | |
632 | so after stringification: */ | |
633 | ptr = SvPV_nomg_const(ssv,len); | |
634 | /* We need to check the flag again: */ | |
635 | if (!SvAMAGIC(ssv)) goto frog; | |
636 | } | |
637 | else ptr = SvPV_nomg_const(ssv,len); | |
a2a5de95 NC |
638 | if (len == 0) |
639 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
640 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 641 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 642 | } |
a0d0e21e | 643 | |
5d3fdfeb | 644 | (void)sv_bless(TOPs, stash); |
79072805 LW |
645 | RETURN; |
646 | } | |
647 | ||
fb73857a | 648 | PP(pp_gelem) |
649 | { | |
20b7effb | 650 | dSP; |
b13b2135 | 651 | |
1b6737cc | 652 | SV *sv = POPs; |
a180b31a BF |
653 | STRLEN len; |
654 | const char * const elem = SvPV_const(sv, len); | |
5695161e | 655 | GV * const gv = MUTABLE_GV(TOPs); |
c445ea15 | 656 | SV * tmpRef = NULL; |
1b6737cc | 657 | |
c445ea15 | 658 | sv = NULL; |
c4ba80c3 NC |
659 | if (elem) { |
660 | /* elem will always be NUL terminated. */ | |
c4ba80c3 NC |
661 | switch (*elem) { |
662 | case 'A': | |
500f3e18 | 663 | if (memEQs(elem, len, "ARRAY")) |
e14698d8 | 664 | { |
ad64d0ec | 665 | tmpRef = MUTABLE_SV(GvAV(gv)); |
e14698d8 FC |
666 | if (tmpRef && !AvREAL((const AV *)tmpRef) |
667 | && AvREIFY((const AV *)tmpRef)) | |
668 | av_reify(MUTABLE_AV(tmpRef)); | |
669 | } | |
c4ba80c3 NC |
670 | break; |
671 | case 'C': | |
500f3e18 | 672 | if (memEQs(elem, len, "CODE")) |
ad64d0ec | 673 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
674 | break; |
675 | case 'F': | |
500f3e18 | 676 | if (memEQs(elem, len, "FILEHANDLE")) { |
ad64d0ec | 677 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
678 | } |
679 | else | |
500f3e18 | 680 | if (memEQs(elem, len, "FORMAT")) |
ad64d0ec | 681 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
682 | break; |
683 | case 'G': | |
500f3e18 | 684 | if (memEQs(elem, len, "GLOB")) |
ad64d0ec | 685 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
686 | break; |
687 | case 'H': | |
500f3e18 | 688 | if (memEQs(elem, len, "HASH")) |
ad64d0ec | 689 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
690 | break; |
691 | case 'I': | |
500f3e18 | 692 | if (memEQs(elem, len, "IO")) |
ad64d0ec | 693 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
694 | break; |
695 | case 'N': | |
500f3e18 | 696 | if (memEQs(elem, len, "NAME")) |
a663657d | 697 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
698 | break; |
699 | case 'P': | |
500f3e18 | 700 | if (memEQs(elem, len, "PACKAGE")) { |
7fa3a4ab NC |
701 | const HV * const stash = GvSTASH(gv); |
702 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 703 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
704 | } |
705 | break; | |
706 | case 'S': | |
500f3e18 | 707 | if (memEQs(elem, len, "SCALAR")) |
f9d52e31 | 708 | tmpRef = GvSVn(gv); |
c4ba80c3 | 709 | break; |
39b99f21 | 710 | } |
fb73857a | 711 | } |
76e3520e GS |
712 | if (tmpRef) |
713 | sv = newRV(tmpRef); | |
fb73857a | 714 | if (sv) |
715 | sv_2mortal(sv); | |
716 | else | |
3280af22 | 717 | sv = &PL_sv_undef; |
5695161e | 718 | SETs(sv); |
fb73857a | 719 | RETURN; |
720 | } | |
721 | ||
a0d0e21e | 722 | /* Pattern matching */ |
79072805 | 723 | |
a0d0e21e | 724 | PP(pp_study) |
79072805 | 725 | { |
add3e777 | 726 | dSP; dTOPss; |
a0d0e21e LW |
727 | STRLEN len; |
728 | ||
1fa930f2 | 729 | (void)SvPV(sv, len); |
bc9a5256 | 730 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
32f0ea87 | 731 | /* Historically, study was skipped in these cases. */ |
add3e777 FC |
732 | SETs(&PL_sv_no); |
733 | return NORMAL; | |
a4f4e906 NC |
734 | } |
735 | ||
a58a85fa | 736 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 737 | complicates matters elsewhere. */ |
add3e777 FC |
738 | SETs(&PL_sv_yes); |
739 | return NORMAL; | |
79072805 LW |
740 | } |
741 | ||
b1c05ba5 DM |
742 | |
743 | /* also used for: pp_transr() */ | |
744 | ||
a0d0e21e | 745 | PP(pp_trans) |
79072805 | 746 | { |
6442877a | 747 | dSP; |
a0d0e21e LW |
748 | SV *sv; |
749 | ||
533c011a | 750 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 751 | sv = POPs; |
79072805 | 752 | else { |
a0d0e21e | 753 | EXTEND(SP,1); |
f605e527 | 754 | if (ARGTARG) |
6442877a | 755 | sv = PAD_SV(ARGTARG); |
f605e527 FC |
756 | else { |
757 | sv = DEFSV; | |
758 | } | |
79072805 | 759 | } |
bb16bae8 | 760 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
761 | STRLEN len; |
762 | const char * const pv = SvPV(sv,len); | |
763 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 764 | do_trans(newsv); |
290797f7 | 765 | PUSHs(newsv); |
bb16bae8 | 766 | } |
5bbe7184 | 767 | else { |
bcb10b84 VP |
768 | I32 i = do_trans(sv); |
769 | mPUSHi(i); | |
5bbe7184 | 770 | } |
a0d0e21e | 771 | RETURN; |
79072805 LW |
772 | } |
773 | ||
a0d0e21e | 774 | /* Lvalue operators. */ |
79072805 | 775 | |
f595e19f | 776 | static size_t |
81745e4e NC |
777 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) |
778 | { | |
81745e4e NC |
779 | STRLEN len; |
780 | char *s; | |
f595e19f | 781 | size_t count = 0; |
81745e4e NC |
782 | |
783 | PERL_ARGS_ASSERT_DO_CHOMP; | |
784 | ||
785 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
f595e19f | 786 | return 0; |
81745e4e NC |
787 | if (SvTYPE(sv) == SVt_PVAV) { |
788 | I32 i; | |
789 | AV *const av = MUTABLE_AV(sv); | |
790 | const I32 max = AvFILL(av); | |
791 | ||
792 | for (i = 0; i <= max; i++) { | |
793 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
794 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
f595e19f | 795 | count += do_chomp(retval, sv, chomping); |
81745e4e | 796 | } |
f595e19f | 797 | return count; |
81745e4e NC |
798 | } |
799 | else if (SvTYPE(sv) == SVt_PVHV) { | |
800 | HV* const hv = MUTABLE_HV(sv); | |
801 | HE* entry; | |
802 | (void)hv_iterinit(hv); | |
803 | while ((entry = hv_iternext(hv))) | |
f595e19f FC |
804 | count += do_chomp(retval, hv_iterval(hv,entry), chomping); |
805 | return count; | |
81745e4e NC |
806 | } |
807 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 808 | Perl_croak_no_modify(); |
81745e4e NC |
809 | } |
810 | ||
81745e4e NC |
811 | s = SvPV(sv, len); |
812 | if (chomping) { | |
81745e4e | 813 | if (s && len) { |
997c424a DD |
814 | char *temp_buffer = NULL; |
815 | SV *svrecode = NULL; | |
81745e4e NC |
816 | s += --len; |
817 | if (RsPARA(PL_rs)) { | |
818 | if (*s != '\n') | |
997c424a | 819 | goto nope_free_nothing; |
f595e19f | 820 | ++count; |
81745e4e NC |
821 | while (len && s[-1] == '\n') { |
822 | --len; | |
823 | --s; | |
f595e19f | 824 | ++count; |
81745e4e NC |
825 | } |
826 | } | |
827 | else { | |
828 | STRLEN rslen, rs_charlen; | |
829 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
830 | ||
831 | rs_charlen = SvUTF8(PL_rs) | |
832 | ? sv_len_utf8(PL_rs) | |
833 | : rslen; | |
834 | ||
835 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
836 | /* Assumption is that rs is shorter than the scalar. */ | |
837 | if (SvUTF8(PL_rs)) { | |
838 | /* RS is utf8, scalar is 8 bit. */ | |
839 | bool is_utf8 = TRUE; | |
840 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
841 | &rslen, &is_utf8); | |
842 | if (is_utf8) { | |
997c424a DD |
843 | /* Cannot downgrade, therefore cannot possibly match. |
844 | At this point, temp_buffer is not alloced, and | |
845 | is the buffer inside PL_rs, so dont free it. | |
81745e4e NC |
846 | */ |
847 | assert (temp_buffer == rsptr); | |
997c424a | 848 | goto nope_free_sv; |
81745e4e NC |
849 | } |
850 | rsptr = temp_buffer; | |
851 | } | |
81745e4e NC |
852 | else { |
853 | /* RS is 8 bit, scalar is utf8. */ | |
854 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
855 | rsptr = temp_buffer; | |
856 | } | |
857 | } | |
858 | if (rslen == 1) { | |
859 | if (*s != *rsptr) | |
997c424a | 860 | goto nope_free_all; |
f595e19f | 861 | ++count; |
81745e4e NC |
862 | } |
863 | else { | |
864 | if (len < rslen - 1) | |
997c424a | 865 | goto nope_free_all; |
81745e4e NC |
866 | len -= rslen - 1; |
867 | s -= rslen - 1; | |
868 | if (memNE(s, rsptr, rslen)) | |
997c424a | 869 | goto nope_free_all; |
f595e19f | 870 | count += rs_charlen; |
81745e4e NC |
871 | } |
872 | } | |
3b7ded39 | 873 | SvPV_force_nomg_nolen(sv); |
81745e4e NC |
874 | SvCUR_set(sv, len); |
875 | *SvEND(sv) = '\0'; | |
876 | SvNIOK_off(sv); | |
877 | SvSETMAGIC(sv); | |
81745e4e | 878 | |
997c424a DD |
879 | nope_free_all: |
880 | Safefree(temp_buffer); | |
881 | nope_free_sv: | |
882 | SvREFCNT_dec(svrecode); | |
883 | nope_free_nothing: ; | |
884 | } | |
81745e4e | 885 | } else { |
f8c80a8e | 886 | if (len && (!SvPOK(sv) || SvIsCOW(sv))) |
81745e4e NC |
887 | s = SvPV_force_nomg(sv, len); |
888 | if (DO_UTF8(sv)) { | |
889 | if (s && len) { | |
890 | char * const send = s + len; | |
891 | char * const start = s; | |
892 | s = send - 1; | |
893 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
894 | s--; | |
895 | if (is_utf8_string((U8*)s, send - s)) { | |
896 | sv_setpvn(retval, s, send - s); | |
897 | *s = '\0'; | |
898 | SvCUR_set(sv, s - start); | |
899 | SvNIOK_off(sv); | |
900 | SvUTF8_on(retval); | |
901 | } | |
902 | } | |
903 | else | |
500f3e18 | 904 | SvPVCLEAR(retval); |
81745e4e NC |
905 | } |
906 | else if (s && len) { | |
907 | s += --len; | |
908 | sv_setpvn(retval, s, 1); | |
909 | *s = '\0'; | |
910 | SvCUR_set(sv, len); | |
911 | SvUTF8_off(sv); | |
912 | SvNIOK_off(sv); | |
913 | } | |
914 | else | |
500f3e18 | 915 | SvPVCLEAR(retval); |
81745e4e NC |
916 | SvSETMAGIC(sv); |
917 | } | |
f595e19f | 918 | return count; |
81745e4e NC |
919 | } |
920 | ||
b1c05ba5 DM |
921 | |
922 | /* also used for: pp_schomp() */ | |
923 | ||
a0d0e21e LW |
924 | PP(pp_schop) |
925 | { | |
20b7effb | 926 | dSP; dTARGET; |
fa54efae NC |
927 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
928 | ||
f595e19f | 929 | const size_t count = do_chomp(TARG, TOPs, chomping); |
fa54efae | 930 | if (chomping) |
f595e19f | 931 | sv_setiv(TARG, count); |
a0d0e21e | 932 | SETTARG; |
ee41d8c7 | 933 | return NORMAL; |
79072805 LW |
934 | } |
935 | ||
b1c05ba5 DM |
936 | |
937 | /* also used for: pp_chomp() */ | |
938 | ||
a0d0e21e | 939 | PP(pp_chop) |
79072805 | 940 | { |
20b7effb | 941 | dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 942 | const bool chomping = PL_op->op_type == OP_CHOMP; |
f595e19f | 943 | size_t count = 0; |
8ec5e241 | 944 | |
20cf1f79 | 945 | while (MARK < SP) |
f595e19f FC |
946 | count += do_chomp(TARG, *++MARK, chomping); |
947 | if (chomping) | |
948 | sv_setiv(TARG, count); | |
20cf1f79 NC |
949 | SP = ORIGMARK; |
950 | XPUSHTARG; | |
a0d0e21e | 951 | RETURN; |
79072805 LW |
952 | } |
953 | ||
a0d0e21e LW |
954 | PP(pp_undef) |
955 | { | |
20b7effb | 956 | dSP; |
a0d0e21e LW |
957 | SV *sv; |
958 | ||
533c011a | 959 | if (!PL_op->op_private) { |
774d564b | 960 | EXTEND(SP, 1); |
a0d0e21e | 961 | RETPUSHUNDEF; |
774d564b | 962 | } |
79072805 | 963 | |
821f14b0 | 964 | sv = TOPs; |
a0d0e21e | 965 | if (!sv) |
821f14b0 FC |
966 | { |
967 | SETs(&PL_sv_undef); | |
968 | return NORMAL; | |
969 | } | |
85e6fe83 | 970 | |
4dda930b FC |
971 | if (SvTHINKFIRST(sv)) |
972 | sv_force_normal_flags(sv, SV_COW_DROP_PV|SV_IMMEDIATE_UNREF); | |
85e6fe83 | 973 | |
a0d0e21e LW |
974 | switch (SvTYPE(sv)) { |
975 | case SVt_NULL: | |
976 | break; | |
977 | case SVt_PVAV: | |
60edcf09 | 978 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
979 | break; |
980 | case SVt_PVHV: | |
60edcf09 | 981 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
982 | break; |
983 | case SVt_PVCV: | |
a2a5de95 | 984 | if (cv_const_sv((const CV *)sv)) |
714cd18f | 985 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
147e3846 | 986 | "Constant subroutine %" SVf " undefined", |
714cd18f BF |
987 | SVfARG(CvANON((const CV *)sv) |
988 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
989 | : sv_2mortal(newSVhek( |
990 | CvNAMED(sv) | |
991 | ? CvNAME_HEK((CV *)sv) | |
992 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
993 | )) | |
994 | )); | |
5f66b61c | 995 | /* FALLTHROUGH */ |
9607fc9c | 996 | case SVt_PVFM: |
6fc92669 | 997 | /* let user-undef'd sub keep its identity */ |
b7acb0a3 | 998 | cv_undef_flags(MUTABLE_CV(sv), CV_UNDEF_KEEP_NAME); |
a0d0e21e | 999 | break; |
8e07c86e | 1000 | case SVt_PVGV: |
bc1df6c2 FC |
1001 | assert(isGV_with_GP(sv)); |
1002 | assert(!SvFAKE(sv)); | |
1003 | { | |
20408e3c | 1004 | GP *gp; |
dd69841b BB |
1005 | HV *stash; |
1006 | ||
dd69841b | 1007 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
1008 | bool method_changed |
1009 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
1010 | && HvENAME_get(stash); | |
1011 | /* undef *Foo:: */ | |
1012 | if((stash = GvHV((const GV *)sv))) { | |
1013 | if(HvENAME_get(stash)) | |
1014 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
1015 | else stash = NULL; | |
1016 | } | |
dd69841b | 1017 | |
795eb8c8 | 1018 | SvREFCNT_inc_simple_void_NN(sv_2mortal(sv)); |
159b6efe | 1019 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 1020 | Newxz(gp, 1, GP); |
c43ae56f | 1021 | GvGP_set(sv, gp_ref(gp)); |
2e3295e3 | 1022 | #ifndef PERL_DONT_CREATE_GVSV |
561b68a9 | 1023 | GvSV(sv) = newSV(0); |
2e3295e3 | 1024 | #endif |
57843af0 | 1025 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 1026 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 1027 | GvMULTI_on(sv); |
e530fb81 FC |
1028 | |
1029 | if(stash) | |
afdbe55d | 1030 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
1031 | stash = NULL; |
1032 | /* undef *Foo::ISA */ | |
1033 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
1034 | && (stash = GvSTASH((const GV *)sv)) | |
1035 | && (method_changed || HvENAME(stash)) ) | |
1036 | mro_isa_changed_in(stash); | |
1037 | else if(method_changed) | |
1038 | mro_method_changed_in( | |
da9043f5 | 1039 | GvSTASH((const GV *)sv) |
e530fb81 FC |
1040 | ); |
1041 | ||
6e592b3a | 1042 | break; |
20408e3c | 1043 | } |
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 | 1053 | |
821f14b0 FC |
1054 | SETs(&PL_sv_undef); |
1055 | return NORMAL; | |
79072805 LW |
1056 | } |
1057 | ||
b1c05ba5 | 1058 | |
20e96431 | 1059 | /* common "slow" code for pp_postinc and pp_postdec */ |
b1c05ba5 | 1060 | |
20e96431 DM |
1061 | static OP * |
1062 | S_postincdec_common(pTHX_ SV *sv, SV *targ) | |
a0d0e21e | 1063 | { |
20e96431 | 1064 | dSP; |
c22c99bc FC |
1065 | const bool inc = |
1066 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
20e96431 DM |
1067 | |
1068 | if (SvROK(sv)) | |
7dcb9b98 | 1069 | TARG = sv_newmortal(); |
20e96431 DM |
1070 | sv_setsv(TARG, sv); |
1071 | if (inc) | |
1072 | sv_inc_nomg(sv); | |
1073 | else | |
1074 | sv_dec_nomg(sv); | |
1075 | SvSETMAGIC(sv); | |
1e54a23f | 1076 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1077 | if (inc && !SvOK(TARG)) |
a0d0e21e | 1078 | sv_setiv(TARG, 0); |
e87de4ab | 1079 | SETTARG; |
a0d0e21e LW |
1080 | return NORMAL; |
1081 | } | |
79072805 | 1082 | |
20e96431 DM |
1083 | |
1084 | /* also used for: pp_i_postinc() */ | |
1085 | ||
1086 | PP(pp_postinc) | |
1087 | { | |
1088 | dSP; dTARGET; | |
1089 | SV *sv = TOPs; | |
1090 | ||
1091 | /* special-case sv being a simple integer */ | |
1092 | if (LIKELY(((sv->sv_flags & | |
1093 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1094 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1095 | == SVf_IOK)) | |
1096 | && SvIVX(sv) != IV_MAX) | |
1097 | { | |
1098 | IV iv = SvIVX(sv); | |
1099 | SvIV_set(sv, iv + 1); | |
1100 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1101 | SETs(TARG); | |
1102 | return NORMAL; | |
1103 | } | |
1104 | ||
1105 | return S_postincdec_common(aTHX_ sv, TARG); | |
1106 | } | |
1107 | ||
1108 | ||
1109 | /* also used for: pp_i_postdec() */ | |
1110 | ||
1111 | PP(pp_postdec) | |
1112 | { | |
1113 | dSP; dTARGET; | |
1114 | SV *sv = TOPs; | |
1115 | ||
1116 | /* special-case sv being a simple integer */ | |
1117 | if (LIKELY(((sv->sv_flags & | |
1118 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1119 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1120 | == SVf_IOK)) | |
1121 | && SvIVX(sv) != IV_MIN) | |
1122 | { | |
1123 | IV iv = SvIVX(sv); | |
1124 | SvIV_set(sv, iv - 1); | |
1125 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1126 | SETs(TARG); | |
1127 | return NORMAL; | |
1128 | } | |
1129 | ||
1130 | return S_postincdec_common(aTHX_ sv, TARG); | |
1131 | } | |
1132 | ||
1133 | ||
a0d0e21e LW |
1134 | /* Ordinary operators. */ |
1135 | ||
1136 | PP(pp_pow) | |
1137 | { | |
20b7effb | 1138 | dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1139 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1140 | bool is_int = 0; |
1141 | #endif | |
6f1401dc DM |
1142 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1143 | svr = TOPs; | |
1144 | svl = TOPm1s; | |
52a96ae6 HS |
1145 | #ifdef PERL_PRESERVE_IVUV |
1146 | /* For integer to integer power, we do the calculation by hand wherever | |
1147 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1148 | integer afterwards. */ | |
01f91bf2 | 1149 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1150 | UV power; |
1151 | bool baseuok; | |
1152 | UV baseuv; | |
1153 | ||
800401ee JH |
1154 | if (SvUOK(svr)) { |
1155 | power = SvUVX(svr); | |
900658e3 | 1156 | } else { |
800401ee | 1157 | const IV iv = SvIVX(svr); |
900658e3 PF |
1158 | if (iv >= 0) { |
1159 | power = iv; | |
1160 | } else { | |
1161 | goto float_it; /* Can't do negative powers this way. */ | |
1162 | } | |
1163 | } | |
1164 | ||
800401ee | 1165 | baseuok = SvUOK(svl); |
900658e3 | 1166 | if (baseuok) { |
800401ee | 1167 | baseuv = SvUVX(svl); |
900658e3 | 1168 | } else { |
800401ee | 1169 | const IV iv = SvIVX(svl); |
900658e3 PF |
1170 | if (iv >= 0) { |
1171 | baseuv = iv; | |
1172 | baseuok = TRUE; /* effectively it's a UV now */ | |
1173 | } else { | |
1174 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1175 | } | |
1176 | } | |
52a96ae6 HS |
1177 | /* now we have integer ** positive integer. */ |
1178 | is_int = 1; | |
1179 | ||
1180 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1181 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1182 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1183 | The logic here will work for any base (even non-integer |
1184 | bases) but it can be less accurate than | |
1185 | pow (base,power) or exp (power * log (base)) when the | |
1186 | intermediate values start to spill out of the mantissa. | |
1187 | With powers of 2 we know this can't happen. | |
1188 | And powers of 2 are the favourite thing for perl | |
1189 | programmers to notice ** not doing what they mean. */ | |
1190 | NV result = 1.0; | |
1191 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1192 | |
1193 | if (power & 1) { | |
1194 | result *= base; | |
1195 | } | |
1196 | while (power >>= 1) { | |
1197 | base *= base; | |
1198 | if (power & 1) { | |
1199 | result *= base; | |
1200 | } | |
1201 | } | |
58d76dfd JH |
1202 | SP--; |
1203 | SETn( result ); | |
6f1401dc | 1204 | SvIV_please_nomg(svr); |
58d76dfd | 1205 | RETURN; |
52a96ae6 | 1206 | } else { |
eb578fdb KW |
1207 | unsigned int highbit = 8 * sizeof(UV); |
1208 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1209 | while (diff >>= 1) { |
1210 | highbit -= diff; | |
1211 | if (baseuv >> highbit) { | |
1212 | highbit += diff; | |
1213 | } | |
52a96ae6 HS |
1214 | } |
1215 | /* we now have baseuv < 2 ** highbit */ | |
1216 | if (power * highbit <= 8 * sizeof(UV)) { | |
1217 | /* result will definitely fit in UV, so use UV math | |
1218 | on same algorithm as above */ | |
eb578fdb KW |
1219 | UV result = 1; |
1220 | UV base = baseuv; | |
f2338a2e | 1221 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1222 | if (odd_power) { |
1223 | result *= base; | |
1224 | } | |
1225 | while (power >>= 1) { | |
1226 | base *= base; | |
1227 | if (power & 1) { | |
52a96ae6 | 1228 | result *= base; |
52a96ae6 HS |
1229 | } |
1230 | } | |
1231 | SP--; | |
0615a994 | 1232 | if (baseuok || !odd_power) |
52a96ae6 HS |
1233 | /* answer is positive */ |
1234 | SETu( result ); | |
1235 | else if (result <= (UV)IV_MAX) | |
1236 | /* answer negative, fits in IV */ | |
1237 | SETi( -(IV)result ); | |
1238 | else if (result == (UV)IV_MIN) | |
1239 | /* 2's complement assumption: special case IV_MIN */ | |
1240 | SETi( IV_MIN ); | |
1241 | else | |
1242 | /* answer negative, doesn't fit */ | |
1243 | SETn( -(NV)result ); | |
1244 | RETURN; | |
1245 | } | |
1246 | } | |
58d76dfd | 1247 | } |
52a96ae6 | 1248 | float_it: |
58d76dfd | 1249 | #endif |
a0d0e21e | 1250 | { |
6f1401dc DM |
1251 | NV right = SvNV_nomg(svr); |
1252 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1253 | (void)POPs; |
3aaeb624 JA |
1254 | |
1255 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1256 | /* | |
1257 | We are building perl with long double support and are on an AIX OS | |
1258 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1259 | negative base. This was reported to IBM as PMR #23047-379 on | |
1260 | 03/06/2006. The problem exists in at least the following versions | |
1261 | of AIX and the libm fileset, and no doubt others as well: | |
1262 | ||
1263 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1264 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1265 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1266 | ||
1267 | So, until IBM fixes powl(), we provide the following workaround to | |
1268 | handle the problem ourselves. Our logic is as follows: for | |
1269 | negative bases (left), we use fmod(right, 2) to check if the | |
1270 | exponent is an odd or even integer: | |
1271 | ||
1272 | - if odd, powl(left, right) == -powl(-left, right) | |
1273 | - if even, powl(left, right) == powl(-left, right) | |
1274 | ||
1275 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1276 | we just return that (as NV_NAN). | |
1277 | */ | |
1278 | ||
1279 | if (left < 0.0) { | |
1280 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1281 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1282 | SETn( -Perl_pow( -left, right) ); | |
1283 | } else if (mod2 == 0.0) { /* even integer */ | |
1284 | SETn( Perl_pow( -left, right) ); | |
1285 | } else { /* fractional power */ | |
1286 | SETn( NV_NAN ); | |
1287 | } | |
1288 | } else { | |
1289 | SETn( Perl_pow( left, right) ); | |
1290 | } | |
1291 | #else | |
52a96ae6 | 1292 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1293 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1294 | ||
52a96ae6 HS |
1295 | #ifdef PERL_PRESERVE_IVUV |
1296 | if (is_int) | |
6f1401dc | 1297 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1298 | #endif |
1299 | RETURN; | |
93a17b20 | 1300 | } |
a0d0e21e LW |
1301 | } |
1302 | ||
1303 | PP(pp_multiply) | |
1304 | { | |
20b7effb | 1305 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1306 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1307 | svr = TOPs; | |
1308 | svl = TOPm1s; | |
230ee21f | 1309 | |
28e5dec8 | 1310 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1311 | |
1312 | /* special-case some simple common cases */ | |
1313 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1314 | IV il, ir; | |
1315 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1316 | if (flags & SVf_IOK) { | |
1317 | /* both args are simple IVs */ | |
1318 | UV topl, topr; | |
1319 | il = SvIVX(svl); | |
1320 | ir = SvIVX(svr); | |
1321 | do_iv: | |
1322 | topl = ((UV)il) >> (UVSIZE * 4 - 1); | |
1323 | topr = ((UV)ir) >> (UVSIZE * 4 - 1); | |
1324 | ||
1325 | /* if both are in a range that can't under/overflow, do a | |
1326 | * simple integer multiply: if the top halves(*) of both numbers | |
1327 | * are 00...00 or 11...11, then it's safe. | |
1328 | * (*) for 32-bits, the "top half" is the top 17 bits, | |
1329 | * for 64-bits, its 33 bits */ | |
1330 | if (!( | |
1331 | ((topl+1) | (topr+1)) | |
1332 | & ( (((UV)1) << (UVSIZE * 4 + 1)) - 2) /* 11..110 */ | |
1333 | )) { | |
1334 | SP--; | |
1335 | TARGi(il * ir, 0); /* args not GMG, so can't be tainted */ | |
1336 | SETs(TARG); | |
1337 | RETURN; | |
1338 | } | |
1339 | goto generic; | |
1340 | } | |
1341 | else if (flags & SVf_NOK) { | |
1342 | /* both args are NVs */ | |
1343 | NV nl = SvNVX(svl); | |
1344 | NV nr = SvNVX(svr); | |
1345 | NV result; | |
1346 | ||
3336af0b DD |
1347 | if ( |
1348 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
1349 | !Perl_isnan(nl) && nl == (NV)(il = (IV)nl) | |
1350 | && !Perl_isnan(nr) && nr == (NV)(ir = (IV)nr) | |
1351 | #else | |
1352 | nl == (NV)(il = (IV)nl) && nr == (NV)(ir = (IV)nr) | |
1353 | #endif | |
1354 | ) | |
230ee21f DM |
1355 | /* nothing was lost by converting to IVs */ |
1356 | goto do_iv; | |
1357 | SP--; | |
1358 | result = nl * nr; | |
1f02ab1d | 1359 | # if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1360 | if (Perl_isinf(result)) { |
1361 | Zero((U8*)&result + 8, 8, U8); | |
1362 | } | |
1363 | # endif | |
1364 | TARGn(result, 0); /* args not GMG, so can't be tainted */ | |
1365 | SETs(TARG); | |
1366 | RETURN; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | generic: | |
1371 | ||
01f91bf2 | 1372 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1373 | /* Unless the left argument is integer in range we are going to have to |
1374 | use NV maths. Hence only attempt to coerce the right argument if | |
1375 | we know the left is integer. */ | |
1376 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1377 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1378 | bool auvok = SvUOK(svl); |
1379 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1380 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1381 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1382 | UV alow; | |
1383 | UV ahigh; | |
1384 | UV blow; | |
1385 | UV bhigh; | |
1386 | ||
1387 | if (auvok) { | |
800401ee | 1388 | alow = SvUVX(svl); |
28e5dec8 | 1389 | } else { |
800401ee | 1390 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1391 | if (aiv >= 0) { |
1392 | alow = aiv; | |
1393 | auvok = TRUE; /* effectively it's a UV now */ | |
1394 | } else { | |
53e2bfb7 DM |
1395 | /* abs, auvok == false records sign */ |
1396 | alow = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); | |
28e5dec8 JH |
1397 | } |
1398 | } | |
1399 | if (buvok) { | |
800401ee | 1400 | blow = SvUVX(svr); |
28e5dec8 | 1401 | } else { |
800401ee | 1402 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1403 | if (biv >= 0) { |
1404 | blow = biv; | |
1405 | buvok = TRUE; /* effectively it's a UV now */ | |
1406 | } else { | |
53e2bfb7 DM |
1407 | /* abs, buvok == false records sign */ |
1408 | blow = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); | |
28e5dec8 JH |
1409 | } |
1410 | } | |
1411 | ||
1412 | /* If this does sign extension on unsigned it's time for plan B */ | |
1413 | ahigh = alow >> (4 * sizeof (UV)); | |
1414 | alow &= botmask; | |
1415 | bhigh = blow >> (4 * sizeof (UV)); | |
1416 | blow &= botmask; | |
1417 | if (ahigh && bhigh) { | |
6f207bd3 | 1418 | NOOP; |
28e5dec8 JH |
1419 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1420 | which is overflow. Drop to NVs below. */ | |
1421 | } else if (!ahigh && !bhigh) { | |
1422 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1423 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1424 | const UV product = alow * blow; |
28e5dec8 JH |
1425 | if (auvok == buvok) { |
1426 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1427 | SP--; | |
1428 | SETu( product ); | |
1429 | RETURN; | |
1430 | } else if (product <= (UV)IV_MIN) { | |
1431 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1432 | /* -ve result, which could overflow an IV */ | |
1433 | SP--; | |
02b08bbc DM |
1434 | /* can't negate IV_MIN, but there are aren't two |
1435 | * integers such that !ahigh && !bhigh, where the | |
1436 | * product equals 0x800....000 */ | |
1437 | assert(product != (UV)IV_MIN); | |
25716404 | 1438 | SETi( -(IV)product ); |
28e5dec8 JH |
1439 | RETURN; |
1440 | } /* else drop to NVs below. */ | |
1441 | } else { | |
1442 | /* One operand is large, 1 small */ | |
1443 | UV product_middle; | |
1444 | if (bhigh) { | |
1445 | /* swap the operands */ | |
1446 | ahigh = bhigh; | |
1447 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1448 | blow = alow; | |
1449 | alow = bhigh; | |
1450 | } | |
1451 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1452 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1453 | product_middle = ahigh * blow; | |
1454 | if (!(product_middle & topmask)) { | |
1455 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1456 | UV product_low; | |
1457 | product_middle <<= (4 * sizeof (UV)); | |
1458 | product_low = alow * blow; | |
1459 | ||
1460 | /* as for pp_add, UV + something mustn't get smaller. | |
1461 | IIRC ANSI mandates this wrapping *behaviour* for | |
1462 | unsigned whatever the actual representation*/ | |
1463 | product_low += product_middle; | |
1464 | if (product_low >= product_middle) { | |
1465 | /* didn't overflow */ | |
1466 | if (auvok == buvok) { | |
1467 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1468 | SP--; | |
1469 | SETu( product_low ); | |
1470 | RETURN; | |
1471 | } else if (product_low <= (UV)IV_MIN) { | |
1472 | /* 2s complement assumption again */ | |
1473 | /* -ve result, which could overflow an IV */ | |
1474 | SP--; | |
53e2bfb7 DM |
1475 | SETi(product_low == (UV)IV_MIN |
1476 | ? IV_MIN : -(IV)product_low); | |
28e5dec8 JH |
1477 | RETURN; |
1478 | } /* else drop to NVs below. */ | |
1479 | } | |
1480 | } /* product_middle too large */ | |
1481 | } /* ahigh && bhigh */ | |
800401ee JH |
1482 | } /* SvIOK(svl) */ |
1483 | } /* SvIOK(svr) */ | |
28e5dec8 | 1484 | #endif |
a0d0e21e | 1485 | { |
6f1401dc DM |
1486 | NV right = SvNV_nomg(svr); |
1487 | NV left = SvNV_nomg(svl); | |
230ee21f DM |
1488 | NV result = left * right; |
1489 | ||
4efa5a16 | 1490 | (void)POPs; |
1f02ab1d | 1491 | #if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1492 | if (Perl_isinf(result)) { |
1493 | Zero((U8*)&result + 8, 8, U8); | |
3ec400f5 | 1494 | } |
3ec400f5 | 1495 | #endif |
230ee21f | 1496 | SETn(result); |
a0d0e21e | 1497 | RETURN; |
79072805 | 1498 | } |
a0d0e21e LW |
1499 | } |
1500 | ||
1501 | PP(pp_divide) | |
1502 | { | |
20b7effb | 1503 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1504 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1505 | svr = TOPs; | |
1506 | svl = TOPm1s; | |
5479d192 | 1507 | /* Only try to do UV divide first |
68795e93 | 1508 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1509 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1510 | to preserve)) | |
1511 | The assumption is that it is better to use floating point divide | |
1512 | whenever possible, only doing integer divide first if we can't be sure. | |
1513 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1514 | can be too large to preserve, so don't need to compile the code to | |
1515 | test the size of UVs. */ | |
1516 | ||
a0d0e21e | 1517 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1518 | # define PERL_TRY_UV_DIVIDE |
1519 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1520 | #else |
5479d192 NC |
1521 | # ifdef PERL_PRESERVE_IVUV |
1522 | # ifndef NV_PRESERVES_UV | |
1523 | # define PERL_TRY_UV_DIVIDE | |
1524 | # endif | |
1525 | # endif | |
a0d0e21e | 1526 | #endif |
5479d192 NC |
1527 | |
1528 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1529 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1530 | bool left_non_neg = SvUOK(svl); |
1531 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1532 | UV left; |
1533 | UV right; | |
1534 | ||
1535 | if (right_non_neg) { | |
800401ee | 1536 | right = SvUVX(svr); |
5479d192 NC |
1537 | } |
1538 | else { | |
800401ee | 1539 | const IV biv = SvIVX(svr); |
5479d192 NC |
1540 | if (biv >= 0) { |
1541 | right = biv; | |
1542 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1543 | } | |
1544 | else { | |
02b08bbc | 1545 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
5479d192 NC |
1546 | } |
1547 | } | |
1548 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1549 | warning before dieing, hence this test goes here. | |
1550 | If it were immediately before the second SvIV_please, then | |
1551 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1552 | no inspection would give no warning. */ |
5479d192 NC |
1553 | if (right == 0) |
1554 | DIE(aTHX_ "Illegal division by zero"); | |
1555 | ||
1556 | if (left_non_neg) { | |
800401ee | 1557 | left = SvUVX(svl); |
5479d192 NC |
1558 | } |
1559 | else { | |
800401ee | 1560 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1561 | if (aiv >= 0) { |
1562 | left = aiv; | |
1563 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1564 | } | |
1565 | else { | |
02b08bbc | 1566 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
5479d192 NC |
1567 | } |
1568 | } | |
1569 | ||
1570 | if (left >= right | |
1571 | #ifdef SLOPPYDIVIDE | |
1572 | /* For sloppy divide we always attempt integer division. */ | |
1573 | #else | |
1574 | /* Otherwise we only attempt it if either or both operands | |
1575 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1576 | we fall through to the NV divide code below. However, |
1577 | as left >= right to ensure integer result here, we know that | |
1578 | we can skip the test on the right operand - right big | |
1579 | enough not to be preserved can't get here unless left is | |
1580 | also too big. */ | |
1581 | ||
1582 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1583 | #endif |
1584 | ) { | |
1585 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1586 | const UV result = left / right; |
5479d192 NC |
1587 | if (result * right == left) { |
1588 | SP--; /* result is valid */ | |
1589 | if (left_non_neg == right_non_neg) { | |
1590 | /* signs identical, result is positive. */ | |
1591 | SETu( result ); | |
1592 | RETURN; | |
1593 | } | |
1594 | /* 2s complement assumption */ | |
1595 | if (result <= (UV)IV_MIN) | |
02b08bbc | 1596 | SETi(result == (UV)IV_MIN ? IV_MIN : -(IV)result); |
5479d192 NC |
1597 | else { |
1598 | /* It's exact but too negative for IV. */ | |
1599 | SETn( -(NV)result ); | |
1600 | } | |
1601 | RETURN; | |
1602 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1603 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1604 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1605 | #endif /* PERL_TRY_UV_DIVIDE */ |
1606 | { | |
6f1401dc DM |
1607 | NV right = SvNV_nomg(svr); |
1608 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1609 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1610 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1611 | if (! Perl_isnan(right) && right == 0.0) | |
1612 | #else | |
659c4b96 | 1613 | if (right == 0.0) |
ebc6a117 | 1614 | #endif |
5479d192 NC |
1615 | DIE(aTHX_ "Illegal division by zero"); |
1616 | PUSHn( left / right ); | |
1617 | RETURN; | |
79072805 | 1618 | } |
a0d0e21e LW |
1619 | } |
1620 | ||
1621 | PP(pp_modulo) | |
1622 | { | |
20b7effb | 1623 | dSP; dATARGET; |
6f1401dc | 1624 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); |
a0d0e21e | 1625 | { |
9c5ffd7c JH |
1626 | UV left = 0; |
1627 | UV right = 0; | |
dc656993 JH |
1628 | bool left_neg = FALSE; |
1629 | bool right_neg = FALSE; | |
e2c88acc NC |
1630 | bool use_double = FALSE; |
1631 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1632 | NV dright = 0.0; |
1633 | NV dleft = 0.0; | |
6f1401dc DM |
1634 | SV * const svr = TOPs; |
1635 | SV * const svl = TOPm1s; | |
01f91bf2 | 1636 | if (SvIV_please_nomg(svr)) { |
800401ee | 1637 | right_neg = !SvUOK(svr); |
e2c88acc | 1638 | if (!right_neg) { |
800401ee | 1639 | right = SvUVX(svr); |
e2c88acc | 1640 | } else { |
800401ee | 1641 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1642 | if (biv >= 0) { |
1643 | right = biv; | |
1644 | right_neg = FALSE; /* effectively it's a UV now */ | |
1645 | } else { | |
02b08bbc | 1646 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
e2c88acc NC |
1647 | } |
1648 | } | |
1649 | } | |
1650 | else { | |
6f1401dc | 1651 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1652 | right_neg = dright < 0; |
1653 | if (right_neg) | |
1654 | dright = -dright; | |
e2c88acc NC |
1655 | if (dright < UV_MAX_P1) { |
1656 | right = U_V(dright); | |
1657 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1658 | } else { | |
1659 | use_double = TRUE; | |
1660 | } | |
787eafbd | 1661 | } |
a0d0e21e | 1662 | |
e2c88acc NC |
1663 | /* At this point use_double is only true if right is out of range for |
1664 | a UV. In range NV has been rounded down to nearest UV and | |
1665 | use_double false. */ | |
01f91bf2 | 1666 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1667 | left_neg = !SvUOK(svl); |
e2c88acc | 1668 | if (!left_neg) { |
800401ee | 1669 | left = SvUVX(svl); |
e2c88acc | 1670 | } else { |
800401ee | 1671 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1672 | if (aiv >= 0) { |
1673 | left = aiv; | |
1674 | left_neg = FALSE; /* effectively it's a UV now */ | |
1675 | } else { | |
02b08bbc | 1676 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
e2c88acc NC |
1677 | } |
1678 | } | |
e2c88acc | 1679 | } |
787eafbd | 1680 | else { |
6f1401dc | 1681 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1682 | left_neg = dleft < 0; |
1683 | if (left_neg) | |
1684 | dleft = -dleft; | |
68dc0745 | 1685 | |
e2c88acc NC |
1686 | /* This should be exactly the 5.6 behaviour - if left and right are |
1687 | both in range for UV then use U_V() rather than floor. */ | |
1688 | if (!use_double) { | |
1689 | if (dleft < UV_MAX_P1) { | |
1690 | /* right was in range, so is dleft, so use UVs not double. | |
1691 | */ | |
1692 | left = U_V(dleft); | |
1693 | } | |
1694 | /* left is out of range for UV, right was in range, so promote | |
1695 | right (back) to double. */ | |
1696 | else { | |
1697 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1698 | consistent with the implicit +0 floor in the U_V() | |
1699 | inside the #if 1. */ | |
1700 | dleft = Perl_floor(dleft + 0.5); | |
1701 | use_double = TRUE; | |
1702 | if (dright_valid) | |
1703 | dright = Perl_floor(dright + 0.5); | |
1704 | else | |
1705 | dright = right; | |
1706 | } | |
1707 | } | |
1708 | } | |
6f1401dc | 1709 | sp -= 2; |
787eafbd | 1710 | if (use_double) { |
65202027 | 1711 | NV dans; |
787eafbd | 1712 | |
659c4b96 | 1713 | if (!dright) |
cea2e8a9 | 1714 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1715 | |
65202027 | 1716 | dans = Perl_fmod(dleft, dright); |
659c4b96 | 1717 | if ((left_neg != right_neg) && dans) |
787eafbd IZ |
1718 | dans = dright - dans; |
1719 | if (right_neg) | |
1720 | dans = -dans; | |
1721 | sv_setnv(TARG, dans); | |
1722 | } | |
1723 | else { | |
1724 | UV ans; | |
1725 | ||
787eafbd | 1726 | if (!right) |
cea2e8a9 | 1727 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1728 | |
1729 | ans = left % right; | |
1730 | if ((left_neg != right_neg) && ans) | |
1731 | ans = right - ans; | |
1732 | if (right_neg) { | |
1733 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1734 | /* could change -foo to be (~foo)+1 instead */ | |
1735 | if (ans <= ~((UV)IV_MAX)+1) | |
1736 | sv_setiv(TARG, ~ans+1); | |
1737 | else | |
65202027 | 1738 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1739 | } |
1740 | else | |
1741 | sv_setuv(TARG, ans); | |
1742 | } | |
1743 | PUSHTARG; | |
1744 | RETURN; | |
79072805 | 1745 | } |
a0d0e21e | 1746 | } |
79072805 | 1747 | |
a0d0e21e LW |
1748 | PP(pp_repeat) |
1749 | { | |
20b7effb | 1750 | dSP; dATARGET; |
eb578fdb | 1751 | IV count; |
6f1401dc | 1752 | SV *sv; |
02a7a248 | 1753 | bool infnan = FALSE; |
6f1401dc | 1754 | |
82334630 | 1755 | if (GIMME_V == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
6f1401dc DM |
1756 | /* TODO: think of some way of doing list-repeat overloading ??? */ |
1757 | sv = POPs; | |
1758 | SvGETMAGIC(sv); | |
1759 | } | |
1760 | else { | |
3a100dab FC |
1761 | if (UNLIKELY(PL_op->op_private & OPpREPEAT_DOLIST)) { |
1762 | /* The parser saw this as a list repeat, and there | |
1763 | are probably several items on the stack. But we're | |
1764 | in scalar/void context, and there's no pp_list to save us | |
1765 | now. So drop the rest of the items -- robin@kitsite.com | |
1766 | */ | |
1767 | dMARK; | |
1768 | if (MARK + 1 < SP) { | |
1769 | MARK[1] = TOPm1s; | |
1770 | MARK[2] = TOPs; | |
1771 | } | |
1772 | else { | |
1773 | dTOPss; | |
1774 | ASSUME(MARK + 1 == SP); | |
1775 | XPUSHs(sv); | |
1776 | MARK[1] = &PL_sv_undef; | |
1777 | } | |
1778 | SP = MARK + 2; | |
1779 | } | |
6f1401dc DM |
1780 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); |
1781 | sv = POPs; | |
1782 | } | |
1783 | ||
2b573ace JH |
1784 | if (SvIOKp(sv)) { |
1785 | if (SvUOK(sv)) { | |
6f1401dc | 1786 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1787 | if (uv > IV_MAX) |
1788 | count = IV_MAX; /* The best we can do? */ | |
1789 | else | |
1790 | count = uv; | |
1791 | } else { | |
b3211734 | 1792 | count = SvIV_nomg(sv); |
2b573ace JH |
1793 | } |
1794 | } | |
1795 | else if (SvNOKp(sv)) { | |
02a7a248 JH |
1796 | const NV nv = SvNV_nomg(sv); |
1797 | infnan = Perl_isinfnan(nv); | |
1798 | if (UNLIKELY(infnan)) { | |
1799 | count = 0; | |
1800 | } else { | |
1801 | if (nv < 0.0) | |
1802 | count = -1; /* An arbitrary negative integer */ | |
1803 | else | |
1804 | count = (IV)nv; | |
1805 | } | |
2b573ace JH |
1806 | } |
1807 | else | |
02a7a248 | 1808 | count = SvIV_nomg(sv); |
6f1401dc | 1809 | |
02a7a248 JH |
1810 | if (infnan) { |
1811 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
1812 | "Non-finite repeat count does nothing"); | |
1813 | } else if (count < 0) { | |
b3211734 KW |
1814 | count = 0; |
1815 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
02a7a248 | 1816 | "Negative repeat count does nothing"); |
b3211734 KW |
1817 | } |
1818 | ||
82334630 | 1819 | if (GIMME_V == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1820 | dMARK; |
052a7c76 | 1821 | const SSize_t items = SP - MARK; |
da9e430b | 1822 | const U8 mod = PL_op->op_flags & OPf_MOD; |
79072805 | 1823 | |
a0d0e21e | 1824 | if (count > 1) { |
052a7c76 | 1825 | SSize_t max; |
b3b27d01 | 1826 | |
052a7c76 DM |
1827 | if ( items > SSize_t_MAX / count /* max would overflow */ |
1828 | /* repeatcpy would overflow */ | |
1829 | || items > I32_MAX / (I32)sizeof(SV *) | |
b3b27d01 DM |
1830 | ) |
1831 | Perl_croak(aTHX_ "%s","Out of memory during list extend"); | |
1832 | max = items * count; | |
1833 | MEXTEND(MARK, max); | |
1834 | ||
a0d0e21e | 1835 | while (SP > MARK) { |
60779a30 DM |
1836 | if (*SP) { |
1837 | if (mod && SvPADTMP(*SP)) { | |
da9e430b | 1838 | *SP = sv_mortalcopy(*SP); |
60779a30 | 1839 | } |
976c8a39 | 1840 | SvTEMP_off((*SP)); |
da9e430b | 1841 | } |
a0d0e21e | 1842 | SP--; |
79072805 | 1843 | } |
a0d0e21e LW |
1844 | MARK++; |
1845 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1846 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1847 | SP += max; |
79072805 | 1848 | } |
a0d0e21e | 1849 | else if (count <= 0) |
052a7c76 | 1850 | SP = MARK; |
79072805 | 1851 | } |
a0d0e21e | 1852 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1853 | SV * const tmpstr = POPs; |
a0d0e21e | 1854 | STRLEN len; |
9b877dbb | 1855 | bool isutf; |
a0d0e21e | 1856 | |
6f1401dc DM |
1857 | if (TARG != tmpstr) |
1858 | sv_setsv_nomg(TARG, tmpstr); | |
1859 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1860 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1861 | if (count != 1) { |
1862 | if (count < 1) | |
1863 | SvCUR_set(TARG, 0); | |
1864 | else { | |
b3b27d01 DM |
1865 | STRLEN max; |
1866 | ||
1867 | if ( len > (MEM_SIZE_MAX-1) / (UV)count /* max would overflow */ | |
1868 | || len > (U32)I32_MAX /* repeatcpy would overflow */ | |
1869 | ) | |
1870 | Perl_croak(aTHX_ "%s", | |
1871 | "Out of memory during string extend"); | |
1872 | max = (UV)count * len + 1; | |
1873 | SvGROW(TARG, max); | |
1874 | ||
a0d0e21e | 1875 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1876 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1877 | } |
a0d0e21e | 1878 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1879 | } |
dfcb284a GS |
1880 | if (isutf) |
1881 | (void)SvPOK_only_UTF8(TARG); | |
1882 | else | |
1883 | (void)SvPOK_only(TARG); | |
b80b6069 | 1884 | |
a0d0e21e | 1885 | PUSHTARG; |
79072805 | 1886 | } |
a0d0e21e LW |
1887 | RETURN; |
1888 | } | |
79072805 | 1889 | |
a0d0e21e LW |
1890 | PP(pp_subtract) |
1891 | { | |
20b7effb | 1892 | dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1893 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1894 | svr = TOPs; | |
1895 | svl = TOPm1s; | |
230ee21f | 1896 | |
28e5dec8 | 1897 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1898 | |
1899 | /* special-case some simple common cases */ | |
1900 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1901 | IV il, ir; | |
1902 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1903 | if (flags & SVf_IOK) { | |
1904 | /* both args are simple IVs */ | |
1905 | UV topl, topr; | |
1906 | il = SvIVX(svl); | |
1907 | ir = SvIVX(svr); | |
1908 | do_iv: | |
1909 | topl = ((UV)il) >> (UVSIZE * 8 - 2); | |
1910 | topr = ((UV)ir) >> (UVSIZE * 8 - 2); | |
1911 | ||
1912 | /* if both are in a range that can't under/overflow, do a | |
1913 | * simple integer subtract: if the top of both numbers | |
1914 | * are 00 or 11, then it's safe */ | |
1915 | if (!( ((topl+1) | (topr+1)) & 2)) { | |
1916 | SP--; | |
1917 | TARGi(il - ir, 0); /* args not GMG, so can't be tainted */ | |
1918 | SETs(TARG); | |
1919 | RETURN; | |
1920 | } | |
1921 | goto generic; | |
1922 | } | |
1923 | else if (flags & SVf_NOK) { | |
1924 | /* both args are NVs */ | |
1925 | NV nl = SvNVX(svl); | |
1926 | NV nr = SvNVX(svr); | |
1927 | ||
3336af0b DD |
1928 | if ( |
1929 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
1930 | !Perl_isnan(nl) && nl == (NV)(il = (IV)nl) | |
1931 | && !Perl_isnan(nr) && nr == (NV)(ir = (IV)nr) | |
1932 | #else | |
1933 | nl == (NV)(il = (IV)nl) && nr == (NV)(ir = (IV)nr) | |
1934 | #endif | |
1935 | ) | |
230ee21f DM |
1936 | /* nothing was lost by converting to IVs */ |
1937 | goto do_iv; | |
1938 | SP--; | |
1939 | TARGn(nl - nr, 0); /* args not GMG, so can't be tainted */ | |
1940 | SETs(TARG); | |
1941 | RETURN; | |
1942 | } | |
1943 | } | |
1944 | ||
1945 | generic: | |
1946 | ||
1947 | useleft = USE_LEFT(svl); | |
7dca457a NC |
1948 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1949 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1950 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1951 | /* Unless the left argument is integer in range we are going to have to |
1952 | use NV maths. Hence only attempt to coerce the right argument if | |
1953 | we know the left is integer. */ | |
eb578fdb | 1954 | UV auv = 0; |
9c5ffd7c | 1955 | bool auvok = FALSE; |
7dca457a NC |
1956 | bool a_valid = 0; |
1957 | ||
28e5dec8 | 1958 | if (!useleft) { |
7dca457a NC |
1959 | auv = 0; |
1960 | a_valid = auvok = 1; | |
1961 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1962 | } else { |
1963 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1964 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1965 | if ((auvok = SvUOK(svl))) |
1966 | auv = SvUVX(svl); | |
7dca457a | 1967 | else { |
eb578fdb | 1968 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1969 | if (aiv >= 0) { |
1970 | auv = aiv; | |
1971 | auvok = 1; /* Now acting as a sign flag. */ | |
1972 | } else { /* 2s complement assumption for IV_MIN */ | |
53e2bfb7 | 1973 | auv = (aiv == IV_MIN) ? (UV)aiv : (UV)-aiv; |
28e5dec8 | 1974 | } |
7dca457a NC |
1975 | } |
1976 | a_valid = 1; | |
1977 | } | |
1978 | } | |
1979 | if (a_valid) { | |
1980 | bool result_good = 0; | |
1981 | UV result; | |
eb578fdb | 1982 | UV buv; |
800401ee | 1983 | bool buvok = SvUOK(svr); |
9041c2e3 | 1984 | |
7dca457a | 1985 | if (buvok) |
800401ee | 1986 | buv = SvUVX(svr); |
7dca457a | 1987 | else { |
eb578fdb | 1988 | const IV biv = SvIVX(svr); |
7dca457a NC |
1989 | if (biv >= 0) { |
1990 | buv = biv; | |
1991 | buvok = 1; | |
1992 | } else | |
53e2bfb7 | 1993 | buv = (biv == IV_MIN) ? (UV)biv : (UV)-biv; |
7dca457a NC |
1994 | } |
1995 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1996 | else "IV" now, independent of how it came in. |
7dca457a NC |
1997 | if a, b represents positive, A, B negative, a maps to -A etc |
1998 | a - b => (a - b) | |
1999 | A - b => -(a + b) | |
2000 | a - B => (a + b) | |
2001 | A - B => -(a - b) | |
2002 | all UV maths. negate result if A negative. | |
2003 | subtract if signs same, add if signs differ. */ | |
2004 | ||
2005 | if (auvok ^ buvok) { | |
2006 | /* Signs differ. */ | |
2007 | result = auv + buv; | |
2008 | if (result >= auv) | |
2009 | result_good = 1; | |
2010 | } else { | |
2011 | /* Signs same */ | |
2012 | if (auv >= buv) { | |
2013 | result = auv - buv; | |
2014 | /* Must get smaller */ | |
2015 | if (result <= auv) | |
2016 | result_good = 1; | |
2017 | } else { | |
2018 | result = buv - auv; | |
2019 | if (result <= buv) { | |
2020 | /* result really should be -(auv-buv). as its negation | |
2021 | of true value, need to swap our result flag */ | |
2022 | auvok = !auvok; | |
2023 | result_good = 1; | |
28e5dec8 | 2024 | } |
28e5dec8 JH |
2025 | } |
2026 | } | |
7dca457a NC |
2027 | if (result_good) { |
2028 | SP--; | |
2029 | if (auvok) | |
2030 | SETu( result ); | |
2031 | else { | |
2032 | /* Negate result */ | |
2033 | if (result <= (UV)IV_MIN) | |
53e2bfb7 DM |
2034 | SETi(result == (UV)IV_MIN |
2035 | ? IV_MIN : -(IV)result); | |
7dca457a NC |
2036 | else { |
2037 | /* result valid, but out of range for IV. */ | |
2038 | SETn( -(NV)result ); | |
2039 | } | |
2040 | } | |
2041 | RETURN; | |
2042 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
2043 | } |
2044 | } | |
230ee21f DM |
2045 | #else |
2046 | useleft = USE_LEFT(svl); | |
28e5dec8 | 2047 | #endif |
a0d0e21e | 2048 | { |
6f1401dc | 2049 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
2050 | (void)POPs; |
2051 | ||
28e5dec8 JH |
2052 | if (!useleft) { |
2053 | /* left operand is undef, treat as zero - value */ | |
2054 | SETn(-value); | |
2055 | RETURN; | |
2056 | } | |
6f1401dc | 2057 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 2058 | RETURN; |
79072805 | 2059 | } |
a0d0e21e | 2060 | } |
79072805 | 2061 | |
b3498293 JH |
2062 | #define IV_BITS (IVSIZE * 8) |
2063 | ||
2064 | static UV S_uv_shift(UV uv, int shift, bool left) | |
2065 | { | |
2066 | if (shift < 0) { | |
2067 | shift = -shift; | |
2068 | left = !left; | |
2069 | } | |
2070 | if (shift >= IV_BITS) { | |
2071 | return 0; | |
2072 | } | |
2073 | return left ? uv << shift : uv >> shift; | |
2074 | } | |
2075 | ||
2076 | static IV S_iv_shift(IV iv, int shift, bool left) | |
2077 | { | |
2078 | if (shift < 0) { | |
2079 | shift = -shift; | |
2080 | left = !left; | |
2081 | } | |
2082 | if (shift >= IV_BITS) { | |
b69687e7 | 2083 | return iv < 0 && !left ? -1 : 0; |
b3498293 JH |
2084 | } |
2085 | return left ? iv << shift : iv >> shift; | |
2086 | } | |
2087 | ||
2088 | #define UV_LEFT_SHIFT(uv, shift) S_uv_shift(uv, shift, TRUE) | |
2089 | #define UV_RIGHT_SHIFT(uv, shift) S_uv_shift(uv, shift, FALSE) | |
2090 | #define IV_LEFT_SHIFT(iv, shift) S_iv_shift(iv, shift, TRUE) | |
2091 | #define IV_RIGHT_SHIFT(iv, shift) S_iv_shift(iv, shift, FALSE) | |
2092 | ||
a0d0e21e LW |
2093 | PP(pp_left_shift) |
2094 | { | |
20b7effb | 2095 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2096 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2097 | svr = POPs; |
2098 | svl = TOPs; | |
a0d0e21e | 2099 | { |
6f1401dc | 2100 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2101 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2102 | SETi(IV_LEFT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2103 | } |
2104 | else { | |
b3498293 | 2105 | SETu(UV_LEFT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2106 | } |
55497cff | 2107 | RETURN; |
79072805 | 2108 | } |
a0d0e21e | 2109 | } |
79072805 | 2110 | |
a0d0e21e LW |
2111 | PP(pp_right_shift) |
2112 | { | |
20b7effb | 2113 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2114 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2115 | svr = POPs; |
2116 | svl = TOPs; | |
a0d0e21e | 2117 | { |
6f1401dc | 2118 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2119 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2120 | SETi(IV_RIGHT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2121 | } |
2122 | else { | |
b3498293 | 2123 | SETu(UV_RIGHT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2124 | } |
a0d0e21e | 2125 | RETURN; |
93a17b20 | 2126 | } |
79072805 LW |
2127 | } |
2128 | ||
a0d0e21e | 2129 | PP(pp_lt) |
79072805 | 2130 | { |
20b7effb | 2131 | dSP; |
33efebe6 DM |
2132 | SV *left, *right; |
2133 | ||
a42d0242 | 2134 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
2135 | right = POPs; |
2136 | left = TOPs; | |
2137 | SETs(boolSV( | |
2138 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2139 | ? (SvIVX(left) < SvIVX(right)) | |
2140 | : (do_ncmp(left, right) == -1) | |
2141 | )); | |
2142 | RETURN; | |
a0d0e21e | 2143 | } |
79072805 | 2144 | |
a0d0e21e LW |
2145 | PP(pp_gt) |
2146 | { | |
20b7effb | 2147 | dSP; |
33efebe6 | 2148 | SV *left, *right; |
1b6737cc | 2149 | |
33efebe6 DM |
2150 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
2151 | right = POPs; | |
2152 | left = TOPs; | |
2153 | SETs(boolSV( | |
2154 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2155 | ? (SvIVX(left) > SvIVX(right)) | |
2156 | : (do_ncmp(left, right) == 1) | |
2157 | )); | |
2158 | RETURN; | |
a0d0e21e LW |
2159 | } |
2160 | ||
2161 | PP(pp_le) | |
2162 | { | |
20b7effb | 2163 | dSP; |
33efebe6 | 2164 | SV *left, *right; |
1b6737cc | 2165 | |
33efebe6 DM |
2166 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
2167 | right = POPs; | |
2168 | left = TOPs; | |
2169 | SETs(boolSV( | |
2170 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2171 | ? (SvIVX(left) <= SvIVX(right)) | |
2172 | : (do_ncmp(left, right) <= 0) | |
2173 | )); | |
2174 | RETURN; | |
a0d0e21e LW |
2175 | } |
2176 | ||
2177 | PP(pp_ge) | |
2178 | { | |
20b7effb | 2179 | dSP; |
33efebe6 DM |
2180 | SV *left, *right; |
2181 | ||
2182 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
2183 | right = POPs; | |
2184 | left = TOPs; | |
2185 | SETs(boolSV( | |
2186 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2187 | ? (SvIVX(left) >= SvIVX(right)) | |
2188 | : ( (do_ncmp(left, right) & 2) == 0) | |
2189 | )); | |
2190 | RETURN; | |
2191 | } | |
1b6737cc | 2192 | |
33efebe6 DM |
2193 | PP(pp_ne) |
2194 | { | |
20b7effb | 2195 | dSP; |
33efebe6 DM |
2196 | SV *left, *right; |
2197 | ||
2198 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
2199 | right = POPs; | |
2200 | left = TOPs; | |
2201 | SETs(boolSV( | |
2202 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2203 | ? (SvIVX(left) != SvIVX(right)) | |
2204 | : (do_ncmp(left, right) != 0) | |
2205 | )); | |
2206 | RETURN; | |
2207 | } | |
1b6737cc | 2208 | |
33efebe6 DM |
2209 | /* compare left and right SVs. Returns: |
2210 | * -1: < | |
2211 | * 0: == | |
2212 | * 1: > | |
2213 | * 2: left or right was a NaN | |
2214 | */ | |
2215 | I32 | |
2216 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2217 | { | |
33efebe6 DM |
2218 | PERL_ARGS_ASSERT_DO_NCMP; |
2219 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2220 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2221 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2222 | if (!SvUOK(left)) { |
2223 | const IV leftiv = SvIVX(left); | |
2224 | if (!SvUOK(right)) { | |
2225 | /* ## IV <=> IV ## */ | |
2226 | const IV rightiv = SvIVX(right); | |
2227 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2228 | } |
33efebe6 DM |
2229 | /* ## IV <=> UV ## */ |
2230 | if (leftiv < 0) | |
2231 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2232 | return -1; | |
2233 | { | |
2234 | const UV rightuv = SvUVX(right); | |
2235 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2236 | } |
28e5dec8 | 2237 | } |
79072805 | 2238 | |
33efebe6 DM |
2239 | if (SvUOK(right)) { |
2240 | /* ## UV <=> UV ## */ | |
2241 | const UV leftuv = SvUVX(left); | |
2242 | const UV rightuv = SvUVX(right); | |
2243 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2244 | } |
33efebe6 DM |
2245 | /* ## UV <=> IV ## */ |
2246 | { | |
2247 | const IV rightiv = SvIVX(right); | |
2248 | if (rightiv < 0) | |
2249 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2250 | return 1; | |
2251 | { | |
2252 | const UV leftuv = SvUVX(left); | |
2253 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2254 | } |
28e5dec8 | 2255 | } |
e5964223 | 2256 | NOT_REACHED; /* NOTREACHED */ |
28e5dec8 JH |
2257 | } |
2258 | #endif | |
a0d0e21e | 2259 | { |
33efebe6 DM |
2260 | NV const rnv = SvNV_nomg(right); |
2261 | NV const lnv = SvNV_nomg(left); | |
2262 | ||
cab190d4 | 2263 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2264 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2265 | return 2; | |
2266 | } | |
2267 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2268 | #else |
33efebe6 DM |
2269 | if (lnv < rnv) |
2270 | return -1; | |
2271 | if (lnv > rnv) | |
2272 | return 1; | |
659c4b96 | 2273 | if (lnv == rnv) |
33efebe6 DM |
2274 | return 0; |
2275 | return 2; | |
cab190d4 | 2276 | #endif |
a0d0e21e | 2277 | } |
79072805 LW |
2278 | } |
2279 | ||
33efebe6 | 2280 | |
a0d0e21e | 2281 | PP(pp_ncmp) |
79072805 | 2282 | { |
20b7effb | 2283 | dSP; |
33efebe6 DM |
2284 | SV *left, *right; |
2285 | I32 value; | |
a42d0242 | 2286 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2287 | right = POPs; |
2288 | left = TOPs; | |
2289 | value = do_ncmp(left, right); | |
2290 | if (value == 2) { | |
3280af22 | 2291 | SETs(&PL_sv_undef); |
79072805 | 2292 | } |
33efebe6 DM |
2293 | else { |
2294 | dTARGET; | |
2295 | SETi(value); | |
2296 | } | |
2297 | RETURN; | |
a0d0e21e | 2298 | } |
79072805 | 2299 | |
b1c05ba5 DM |
2300 | |
2301 | /* also used for: pp_sge() pp_sgt() pp_slt() */ | |
2302 | ||
afd9910b | 2303 | PP(pp_sle) |
a0d0e21e | 2304 | { |
20b7effb | 2305 | dSP; |
79072805 | 2306 | |
afd9910b NC |
2307 | int amg_type = sle_amg; |
2308 | int multiplier = 1; | |
2309 | int rhs = 1; | |
79072805 | 2310 | |
afd9910b NC |
2311 | switch (PL_op->op_type) { |
2312 | case OP_SLT: | |
2313 | amg_type = slt_amg; | |
2314 | /* cmp < 0 */ | |
2315 | rhs = 0; | |
2316 | break; | |
2317 | case OP_SGT: | |
2318 | amg_type = sgt_amg; | |
2319 | /* cmp > 0 */ | |
2320 | multiplier = -1; | |
2321 | rhs = 0; | |
2322 | break; | |
2323 | case OP_SGE: | |
2324 | amg_type = sge_amg; | |
2325 | /* cmp >= 0 */ | |
2326 | multiplier = -1; | |
2327 | break; | |
79072805 | 2328 | } |
79072805 | 2329 | |
6f1401dc | 2330 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2331 | { |
2332 | dPOPTOPssrl; | |
130c5df3 | 2333 | const int cmp = |
5778acb6 | 2334 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2335 | (IN_LC_RUNTIME(LC_COLLATE)) |
2336 | ? sv_cmp_locale_flags(left, right, 0) | |
2337 | : | |
2338 | #endif | |
2339 | sv_cmp_flags(left, right, 0); | |
afd9910b | 2340 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2341 | RETURN; |
2342 | } | |
2343 | } | |
79072805 | 2344 | |
36477c24 | 2345 | PP(pp_seq) |
2346 | { | |
20b7effb | 2347 | dSP; |
6f1401dc | 2348 | tryAMAGICbin_MG(seq_amg, AMGf_set); |
36477c24 | 2349 | { |
2350 | dPOPTOPssrl; | |
078504b2 | 2351 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2352 | RETURN; |
2353 | } | |
2354 | } | |
79072805 | 2355 | |
a0d0e21e | 2356 | PP(pp_sne) |
79072805 | 2357 | { |
20b7effb | 2358 | dSP; |
6f1401dc | 2359 | tryAMAGICbin_MG(sne_amg, AMGf_set); |
a0d0e21e LW |
2360 | { |
2361 | dPOPTOPssrl; | |
078504b2 | 2362 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2363 | RETURN; |
463ee0b2 | 2364 | } |
79072805 LW |
2365 | } |
2366 | ||
a0d0e21e | 2367 | PP(pp_scmp) |
79072805 | 2368 | { |
20b7effb | 2369 | dSP; dTARGET; |
6f1401dc | 2370 | tryAMAGICbin_MG(scmp_amg, 0); |
a0d0e21e LW |
2371 | { |
2372 | dPOPTOPssrl; | |
130c5df3 | 2373 | const int cmp = |
5778acb6 | 2374 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2375 | (IN_LC_RUNTIME(LC_COLLATE)) |
2376 | ? sv_cmp_locale_flags(left, right, 0) | |
2377 | : | |
2378 | #endif | |
2379 | sv_cmp_flags(left, right, 0); | |
bbce6d69 | 2380 | SETi( cmp ); |
a0d0e21e LW |
2381 | RETURN; |
2382 | } | |
2383 | } | |
79072805 | 2384 | |
55497cff | 2385 | PP(pp_bit_and) |
2386 | { | |
20b7effb | 2387 | dSP; dATARGET; |
6f1401dc | 2388 | tryAMAGICbin_MG(band_amg, AMGf_assign); |
a0d0e21e LW |
2389 | { |
2390 | dPOPTOPssrl; | |
4633a7c4 | 2391 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2392 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2393 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2394 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2395 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2396 | SETi(i); |
d0ba1bd2 JH |
2397 | } |
2398 | else { | |
1b6737cc | 2399 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2400 | SETu(u); |
d0ba1bd2 | 2401 | } |
5ee80e13 | 2402 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2403 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2404 | } |
2405 | else { | |
533c011a | 2406 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2407 | SETTARG; |
2408 | } | |
2409 | RETURN; | |
2410 | } | |
2411 | } | |
79072805 | 2412 | |
5d01050a FC |
2413 | PP(pp_nbit_and) |
2414 | { | |
2415 | dSP; | |
636ac8fc | 2416 | tryAMAGICbin_MG(band_amg, AMGf_assign|AMGf_numarg); |
5d01050a FC |
2417 | { |
2418 | dATARGET; dPOPTOPssrl; | |
2419 | if (PL_op->op_private & HINT_INTEGER) { | |
2420 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); | |
2421 | SETi(i); | |
2422 | } | |
2423 | else { | |
2424 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); | |
2425 | SETu(u); | |
2426 | } | |
2427 | } | |
2428 | RETURN; | |
2429 | } | |
2430 | ||
2431 | PP(pp_sbit_and) | |
2432 | { | |
2433 | dSP; | |
2434 | tryAMAGICbin_MG(sband_amg, AMGf_assign); | |
2435 | { | |
2436 | dATARGET; dPOPTOPssrl; | |
2437 | do_vop(OP_BIT_AND, TARG, left, right); | |
2438 | RETSETTARG; | |
2439 | } | |
2440 | } | |
b1c05ba5 DM |
2441 | |
2442 | /* also used for: pp_bit_xor() */ | |
2443 | ||
a0d0e21e LW |
2444 | PP(pp_bit_or) |
2445 | { | |
20b7effb | 2446 | dSP; dATARGET; |
3658c1f1 NC |
2447 | const int op_type = PL_op->op_type; |
2448 | ||
6f1401dc | 2449 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2450 | { |
2451 | dPOPTOPssrl; | |
4633a7c4 | 2452 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2453 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2454 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2455 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2456 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2457 | const IV r = SvIV_nomg(right); | |
2458 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2459 | SETi(result); | |
d0ba1bd2 JH |
2460 | } |
2461 | else { | |
3658c1f1 NC |
2462 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2463 | const UV r = SvUV_nomg(right); | |
2464 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2465 | SETu(result); | |
d0ba1bd2 | 2466 | } |
5ee80e13 | 2467 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2468 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2469 | } |
2470 | else { | |
3658c1f1 | 2471 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2472 | SETTARG; |
2473 | } | |
2474 | RETURN; | |
79072805 | 2475 | } |
a0d0e21e | 2476 | } |
79072805 | 2477 | |
5d01050a FC |
2478 | /* also used for: pp_nbit_xor() */ |
2479 | ||
2480 | PP(pp_nbit_or) | |
2481 | { | |
2482 | dSP; | |
2483 | const int op_type = PL_op->op_type; | |
2484 | ||
2485 | tryAMAGICbin_MG((op_type == OP_NBIT_OR ? bor_amg : bxor_amg), | |
636ac8fc | 2486 | AMGf_assign|AMGf_numarg); |
5d01050a FC |
2487 | { |
2488 | dATARGET; dPOPTOPssrl; | |
2489 | if (PL_op->op_private & HINT_INTEGER) { | |
2490 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); | |
2491 | const IV r = SvIV_nomg(right); | |
2492 | const IV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2493 | SETi(result); | |
2494 | } | |
2495 | else { | |
2496 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); | |
2497 | const UV r = SvUV_nomg(right); | |
2498 | const UV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2499 | SETu(result); | |
2500 | } | |
2501 | } | |
2502 | RETURN; | |
2503 | } | |
2504 | ||
2505 | /* also used for: pp_sbit_xor() */ | |
2506 | ||
2507 | PP(pp_sbit_or) | |
2508 | { | |
2509 | dSP; | |
2510 | const int op_type = PL_op->op_type; | |
2511 | ||
2512 | tryAMAGICbin_MG((op_type == OP_SBIT_OR ? sbor_amg : sbxor_amg), | |
2513 | AMGf_assign); | |
2514 | { | |
2515 | dATARGET; dPOPTOPssrl; | |
2516 | do_vop(op_type == OP_SBIT_OR ? OP_BIT_OR : OP_BIT_XOR, TARG, left, | |
2517 | right); | |
2518 | RETSETTARG; | |
2519 | } | |
2520 | } | |
2521 | ||
1c2b3fd6 FC |
2522 | PERL_STATIC_INLINE bool |
2523 | S_negate_string(pTHX) | |
2524 | { | |
2525 | dTARGET; dSP; | |
2526 | STRLEN len; | |
2527 | const char *s; | |
2528 | SV * const sv = TOPs; | |
2529 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2530 | return FALSE; | |
2531 | s = SvPV_nomg_const(sv, len); | |
2532 | if (isIDFIRST(*s)) { | |
2533 | sv_setpvs(TARG, "-"); | |
2534 | sv_catsv(TARG, sv); | |
2535 | } | |
2536 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2537 | sv_setsv_nomg(TARG, sv); | |
2538 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2539 | } | |
2540 | else return FALSE; | |
245d035e | 2541 | SETTARG; |
1c2b3fd6 FC |
2542 | return TRUE; |
2543 | } | |
2544 | ||
a0d0e21e LW |
2545 | PP(pp_negate) |
2546 | { | |
20b7effb | 2547 | dSP; dTARGET; |
6f1401dc | 2548 | tryAMAGICun_MG(neg_amg, AMGf_numeric); |
1c2b3fd6 | 2549 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2550 | { |
6f1401dc | 2551 | SV * const sv = TOPs; |
a5b92898 | 2552 | |
d96ab1b5 | 2553 | if (SvIOK(sv)) { |
7dbe3150 | 2554 | /* It's publicly an integer */ |
28e5dec8 | 2555 | oops_its_an_int: |
9b0e499b GS |
2556 | if (SvIsUV(sv)) { |
2557 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2558 | /* 2s complement assumption. */ |
d14578b8 KW |
2559 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2560 | IV_MIN */ | |
245d035e | 2561 | return NORMAL; |
9b0e499b GS |
2562 | } |
2563 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2564 | SETi(-SvIVX(sv)); |
245d035e | 2565 | return NORMAL; |
9b0e499b GS |
2566 | } |
2567 | } | |
2568 | else if (SvIVX(sv) != IV_MIN) { | |
2569 | SETi(-SvIVX(sv)); | |
245d035e | 2570 | return NORMAL; |
9b0e499b | 2571 | } |
28e5dec8 JH |
2572 | #ifdef PERL_PRESERVE_IVUV |
2573 | else { | |
2574 | SETu((UV)IV_MIN); | |
245d035e | 2575 | return NORMAL; |
28e5dec8 JH |
2576 | } |
2577 | #endif | |
9b0e499b | 2578 | } |
8a5decd8 | 2579 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2580 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2581 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2582 | goto oops_its_an_int; |
4633a7c4 | 2583 | else |
6f1401dc | 2584 | SETn(-SvNV_nomg(sv)); |
79072805 | 2585 | } |
245d035e | 2586 | return NORMAL; |
79072805 LW |
2587 | } |
2588 | ||
a0d0e21e | 2589 | PP(pp_not) |
79072805 | 2590 | { |
20b7effb | 2591 | dSP; |
6f1401dc | 2592 | tryAMAGICun_MG(not_amg, AMGf_set); |
06c841cf | 2593 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
a0d0e21e | 2594 | return NORMAL; |
79072805 LW |
2595 | } |
2596 | ||
5d01050a FC |
2597 | static void |
2598 | S_scomplement(pTHX_ SV *targ, SV *sv) | |
79072805 | 2599 | { |
eb578fdb KW |
2600 | U8 *tmps; |
2601 | I32 anum; | |
a0d0e21e LW |
2602 | STRLEN len; |
2603 | ||
85b0ee6e FC |
2604 | sv_copypv_nomg(TARG, sv); |
2605 | tmps = (U8*)SvPV_nomg(TARG, len); | |
a0d0e21e | 2606 | anum = len; |
1d68d6cd | 2607 | if (SvUTF8(TARG)) { |
a1ca4561 | 2608 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd | 2609 | STRLEN targlen = 0; |
ba210ebe | 2610 | STRLEN l; |
a1ca4561 YST |
2611 | UV nchar = 0; |
2612 | UV nwide = 0; | |
01f6e806 | 2613 | U8 * const send = tmps + len; |
74d49cd0 TS |
2614 | U8 * const origtmps = tmps; |
2615 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
1d68d6cd | 2616 | |
1d68d6cd | 2617 | while (tmps < send) { |
74d49cd0 TS |
2618 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2619 | tmps += l; | |
5f560d8a | 2620 | targlen += UVCHR_SKIP(~c); |
a1ca4561 YST |
2621 | nchar++; |
2622 | if (c > 0xff) | |
2623 | nwide++; | |
1d68d6cd SC |
2624 | } |
2625 | ||
2626 | /* Now rewind strings and write them. */ | |
74d49cd0 | 2627 | tmps = origtmps; |
a1ca4561 YST |
2628 | |
2629 | if (nwide) { | |
01f6e806 AL |
2630 | U8 *result; |
2631 | U8 *p; | |
2632 | ||
87e05d1a KW |
2633 | Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED), |
2634 | deprecated_above_ff_msg, PL_op_desc[PL_op->op_type]); | |
74d49cd0 | 2635 | Newx(result, targlen + 1, U8); |
01f6e806 | 2636 | p = result; |
a1ca4561 | 2637 | while (tmps < send) { |
74d49cd0 TS |
2638 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2639 | tmps += l; | |
01f6e806 | 2640 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 | 2641 | } |
01f6e806 | 2642 | *p = '\0'; |
c1c21316 NC |
2643 | sv_usepvn_flags(TARG, (char*)result, targlen, |
2644 | SV_HAS_TRAILING_NUL); | |
a1ca4561 YST |
2645 | SvUTF8_on(TARG); |
2646 | } | |
2647 | else { | |
01f6e806 AL |
2648 | U8 *result; |
2649 | U8 *p; | |
2650 | ||
74d49cd0 | 2651 | Newx(result, nchar + 1, U8); |
01f6e806 | 2652 | p = result; |
a1ca4561 | 2653 | while (tmps < send) { |
74d49cd0 TS |
2654 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2655 | tmps += l; | |
01f6e806 | 2656 | *p++ = ~c; |
a1ca4561 | 2657 | } |
01f6e806 | 2658 | *p = '\0'; |
c1c21316 | 2659 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
d0a21e00 | 2660 | SvUTF8_off(TARG); |
1d68d6cd | 2661 | } |
5d01050a | 2662 | return; |
1d68d6cd | 2663 | } |
a0d0e21e | 2664 | #ifdef LIBERAL |
51723571 | 2665 | { |
eb578fdb | 2666 | long *tmpl; |
51723571 JH |
2667 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2668 | *tmps = ~*tmps; | |
2669 | tmpl = (long*)tmps; | |
bb7a0f54 | 2670 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2671 | *tmpl = ~*tmpl; |
2672 | tmps = (U8*)tmpl; | |
2673 | } | |
a0d0e21e LW |
2674 | #endif |
2675 | for ( ; anum > 0; anum--, tmps++) | |
2676 | *tmps = ~*tmps; | |
5d01050a FC |
2677 | } |
2678 | ||
2679 | PP(pp_complement) | |
2680 | { | |
2681 | dSP; dTARGET; | |
2682 | tryAMAGICun_MG(compl_amg, AMGf_numeric); | |
2683 | { | |
2684 | dTOPss; | |
2685 | if (SvNIOKp(sv)) { | |
2686 | if (PL_op->op_private & HINT_INTEGER) { | |
2687 | const IV i = ~SvIV_nomg(sv); | |
2688 | SETi(i); | |
2689 | } | |
2690 | else { | |
2691 | const UV u = ~SvUV_nomg(sv); | |
2692 | SETu(u); | |
2693 | } | |
2694 | } | |
2695 | else { | |
2696 | S_scomplement(aTHX_ TARG, sv); | |
ec93b65f | 2697 | SETTARG; |
a0d0e21e | 2698 | } |
24840750 | 2699 | return NORMAL; |
5d01050a FC |
2700 | } |
2701 | } | |
2702 | ||
2703 | PP(pp_ncomplement) | |
2704 | { | |
2705 | dSP; | |
636ac8fc | 2706 | tryAMAGICun_MG(compl_amg, AMGf_numeric|AMGf_numarg); |
5d01050a FC |
2707 | { |
2708 | dTARGET; dTOPss; | |
2709 | if (PL_op->op_private & HINT_INTEGER) { | |
2710 | const IV i = ~SvIV_nomg(sv); | |
2711 | SETi(i); | |
2712 | } | |
2713 | else { | |
2714 | const UV u = ~SvUV_nomg(sv); | |
2715 | SETu(u); | |
2716 | } | |
2717 | } | |
2718 | return NORMAL; | |
2719 | } | |
2720 | ||
2721 | PP(pp_scomplement) | |
2722 | { | |
2723 | dSP; | |
2724 | tryAMAGICun_MG(scompl_amg, AMGf_numeric); | |
2725 | { | |
2726 | dTARGET; dTOPss; | |
2727 | S_scomplement(aTHX_ TARG, sv); | |
2728 | SETTARG; | |
2729 | return NORMAL; | |
a0d0e21e | 2730 | } |
79072805 LW |
2731 | } |
2732 | ||
a0d0e21e LW |
2733 | /* integer versions of some of the above */ |
2734 | ||
a0d0e21e | 2735 | PP(pp_i_multiply) |
79072805 | 2736 | { |
20b7effb | 2737 | dSP; dATARGET; |
6f1401dc | 2738 | tryAMAGICbin_MG(mult_amg, AMGf_assign); |
a0d0e21e | 2739 | { |
6f1401dc | 2740 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2741 | SETi( left * right ); |
2742 | RETURN; | |
2743 | } | |
79072805 LW |
2744 | } |
2745 | ||
a0d0e21e | 2746 | PP(pp_i_divide) |
79072805 | 2747 | { |
85935d8e | 2748 | IV num; |
20b7effb | 2749 | dSP; dATARGET; |
6f1401dc | 2750 | tryAMAGICbin_MG(div_amg, AMGf_assign); |
a0d0e21e | 2751 | { |
6f1401dc | 2752 | dPOPTOPssrl; |
85935d8e | 2753 | IV value = SvIV_nomg(right); |
a0d0e21e | 2754 | if (value == 0) |
ece1bcef | 2755 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2756 | num = SvIV_nomg(left); |
a0cec769 YST |
2757 | |
2758 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2759 | if (value == -1) | |
2760 | value = - num; | |
2761 | else | |
2762 | value = num / value; | |
6f1401dc | 2763 | SETi(value); |
a0d0e21e LW |
2764 | RETURN; |
2765 | } | |
79072805 LW |
2766 | } |
2767 | ||
befad5d1 | 2768 | PP(pp_i_modulo) |
224ec323 JH |
2769 | { |
2770 | /* This is the vanilla old i_modulo. */ | |
20b7effb | 2771 | dSP; dATARGET; |
6f1401dc | 2772 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2773 | { |
6f1401dc | 2774 | dPOPTOPiirl_nomg; |
224ec323 JH |
2775 | if (!right) |
2776 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2777 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2778 | if (right == -1) | |
2779 | SETi( 0 ); | |
2780 | else | |
2781 | SETi( left % right ); | |
224ec323 JH |
2782 | RETURN; |
2783 | } | |
2784 | } | |
2785 | ||
0927ade0 | 2786 | #if defined(__GLIBC__) && IVSIZE == 8 \ |
bf3d06aa | 2787 | && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8)) |
befad5d1 | 2788 | |
0927ade0 | 2789 | PP(pp_i_modulo_glibc_bugfix) |
224ec323 | 2790 | { |
224ec323 | 2791 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2792 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2793 | * See below for pp_i_modulo. */ |
20b7effb | 2794 | dSP; dATARGET; |
6f1401dc | 2795 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2796 | { |
6f1401dc | 2797 | dPOPTOPiirl_nomg; |
224ec323 JH |
2798 | if (!right) |
2799 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2800 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2801 | if (right == -1) | |
2802 | SETi( 0 ); | |
2803 | else | |
2804 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2805 | RETURN; |
2806 | } | |
224ec323 | 2807 | } |
befad5d1 | 2808 | #endif |
79072805 | 2809 | |
a0d0e21e | 2810 | PP(pp_i_add) |
79072805 | 2811 | { |
20b7effb | 2812 | dSP; dATARGET; |
6f1401dc | 2813 | tryAMAGICbin_MG(add_amg, AMGf_assign); |
a0d0e21e | 2814 | { |
6f1401dc | 2815 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2816 | SETi( left + right ); |
2817 | RETURN; | |
79072805 | 2818 | } |
79072805 LW |
2819 | } |
2820 | ||
a0d0e21e | 2821 | PP(pp_i_subtract) |
79072805 | 2822 | { |
20b7effb | 2823 | dSP; dATARGET; |
6f1401dc | 2824 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); |
a0d0e21e | 2825 | { |
6f1401dc | 2826 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2827 | SETi( left - right ); |
2828 | RETURN; | |
79072805 | 2829 | } |
79072805 LW |
2830 | } |
2831 | ||
a0d0e21e | 2832 | PP(pp_i_lt) |
79072805 | 2833 | { |
20b7effb | 2834 | dSP; |
6f1401dc | 2835 | tryAMAGICbin_MG(lt_amg, AMGf_set); |
a0d0e21e | 2836 | { |
96b6b87f | 2837 | dPOPTOPiirl_nomg; |
54310121 | 2838 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2839 | RETURN; |
2840 | } | |
79072805 LW |
2841 | } |
2842 | ||
a0d0e21e | 2843 | PP(pp_i_gt) |
79072805 | 2844 | { |
20b7effb | 2845 | dSP; |
6f1401dc | 2846 | tryAMAGICbin_MG(gt_amg, AMGf_set); |
a0d0e21e | 2847 | { |
96b6b87f | 2848 | dPOPTOPiirl_nomg; |
54310121 | 2849 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2850 | RETURN; |
2851 | } | |
79072805 LW |
2852 | } |
2853 | ||
a0d0e21e | 2854 | PP(pp_i_le) |
79072805 | 2855 | { |
20b7effb | 2856 | dSP; |
6f1401dc | 2857 | tryAMAGICbin_MG(le_amg, AMGf_set); |
a0d0e21e | 2858 | { |
96b6b87f | 2859 | dPOPTOPiirl_nomg; |
54310121 | 2860 | SETs(boolSV(left <= right)); |
a0d0e21e | 2861 | RETURN; |
85e6fe83 | 2862 | } |
79072805 LW |
2863 | } |
2864 | ||
a0d0e21e | 2865 | PP(pp_i_ge) |
79072805 | 2866 | { |
20b7effb | 2867 | dSP; |
6f1401dc | 2868 | tryAMAGICbin_MG(ge_amg, AMGf_set); |
a0d0e21e | 2869 | { |
96b6b87f | 2870 | dPOPTOPiirl_nomg; |
54310121 | 2871 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2872 | RETURN; |
2873 | } | |
79072805 LW |
2874 | } |
2875 | ||
a0d0e21e | 2876 | PP(pp_i_eq) |
79072805 | 2877 | { |
20b7effb | 2878 | dSP; |
6f1401dc | 2879 | tryAMAGICbin_MG(eq_amg, AMGf_set); |
a0d0e21e | 2880 | { |
96b6b87f | 2881 | dPOPTOPiirl_nomg; |
54310121 | 2882 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2883 | RETURN; |
2884 | } | |
79072805 LW |
2885 | } |
2886 | ||
a0d0e21e | 2887 | PP(pp_i_ne) |
79072805 | 2888 | { |
20b7effb | 2889 | dSP; |
6f1401dc | 2890 | tryAMAGICbin_MG(ne_amg, AMGf_set); |
a0d0e21e | 2891 | { |
96b6b87f | 2892 | dPOPTOPiirl_nomg; |
54310121 | 2893 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2894 | RETURN; |
2895 | } | |
79072805 LW |
2896 | } |
2897 | ||
a0d0e21e | 2898 | PP(pp_i_ncmp) |
79072805 | 2899 | { |
20b7effb | 2900 | dSP; dTARGET; |
6f1401dc | 2901 | tryAMAGICbin_MG(ncmp_amg, 0); |
a0d0e21e | 2902 | { |
96b6b87f | 2903 | dPOPTOPiirl_nomg; |
a0d0e21e | 2904 | I32 value; |
79072805 | 2905 | |
a0d0e21e | 2906 | if (left > right) |
79072805 | 2907 | value = 1; |
a0d0e21e | 2908 | else if (left < right) |
79072805 | 2909 | value = -1; |
a0d0e21e | 2910 | else |
79072805 | 2911 | value = 0; |
a0d0e21e LW |
2912 | SETi(value); |
2913 | RETURN; | |
79072805 | 2914 | } |
85e6fe83 LW |
2915 | } |
2916 | ||
2917 | PP(pp_i_negate) | |
2918 | { | |
20b7effb | 2919 | dSP; dTARGET; |
6f1401dc | 2920 | tryAMAGICun_MG(neg_amg, 0); |
1c2b3fd6 | 2921 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2922 | { |
2923 | SV * const sv = TOPs; | |
2924 | IV const i = SvIV_nomg(sv); | |
2925 | SETi(-i); | |
ae642386 | 2926 | return NORMAL; |
6f1401dc | 2927 | } |
85e6fe83 LW |
2928 | } |
2929 | ||
79072805 LW |
2930 | /* High falutin' math. */ |
2931 | ||
2932 | PP(pp_atan2) | |
2933 | { | |
20b7effb | 2934 | dSP; dTARGET; |
6f1401dc | 2935 | tryAMAGICbin_MG(atan2_amg, 0); |
a0d0e21e | 2936 | { |
096c060c | 2937 | dPOPTOPnnrl_nomg; |
a1021d57 | 2938 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2939 | RETURN; |
2940 | } | |
79072805 LW |
2941 | } |
2942 | ||
b1c05ba5 DM |
2943 | |
2944 | /* also used for: pp_cos() pp_exp() pp_log() pp_sqrt() */ | |
2945 | ||
79072805 LW |
2946 | PP(pp_sin) |
2947 | { | |
20b7effb | 2948 | dSP; dTARGET; |
af71714e | 2949 | int amg_type = fallback_amg; |
71302fe3 | 2950 | const char *neg_report = NULL; |
71302fe3 NC |
2951 | const int op_type = PL_op->op_type; |
2952 | ||
2953 | switch (op_type) { | |
af71714e JH |
2954 | case OP_SIN: amg_type = sin_amg; break; |
2955 | case OP_COS: amg_type = cos_amg; break; | |
2956 | case OP_EXP: amg_type = exp_amg; break; | |
2957 | case OP_LOG: amg_type = log_amg; neg_report = "log"; break; | |
2958 | case OP_SQRT: amg_type = sqrt_amg; neg_report = "sqrt"; break; | |
a0d0e21e | 2959 | } |
79072805 | 2960 | |
af71714e | 2961 | assert(amg_type != fallback_amg); |
6f1401dc DM |
2962 | |
2963 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2964 | { |
8c78ed36 | 2965 | SV * const arg = TOPs; |
6f1401dc | 2966 | const NV value = SvNV_nomg(arg); |
a5dc2484 | 2967 | #ifdef NV_NAN |
f256868e | 2968 | NV result = NV_NAN; |
a5dc2484 JH |
2969 | #else |
2970 | NV result = 0.0; | |
2971 | #endif | |
af71714e | 2972 | if (neg_report) { /* log or sqrt */ |
a3463d96 DD |
2973 | if ( |
2974 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
2975 | ! Perl_isnan(value) && | |
2976 | #endif | |
2977 | (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0))) { | |
71302fe3 | 2978 | SET_NUMERIC_STANDARD(); |
dcbac5bb | 2979 | /* diag_listed_as: Can't take log of %g */ |
147e3846 | 2980 | DIE(aTHX_ "Can't take %s of %" NVgf, neg_report, value); |
71302fe3 NC |
2981 | } |
2982 | } | |
af71714e | 2983 | switch (op_type) { |
f256868e | 2984 | default: |
af71714e JH |
2985 | case OP_SIN: result = Perl_sin(value); break; |
2986 | case OP_COS: result = Perl_cos(value); break; | |
2987 | case OP_EXP: result = Perl_exp(value); break; | |
2988 | case OP_LOG: result = Perl_log(value); break; | |
2989 | case OP_SQRT: result = Perl_sqrt(value); break; | |
2990 | } | |
8c78ed36 FC |
2991 | SETn(result); |
2992 | return NORMAL; | |
a0d0e21e | 2993 | } |
79072805 LW |
2994 | } |
2995 | ||
56cb0a1c AD |
2996 | /* Support Configure command-line overrides for rand() functions. |
2997 | After 5.005, perhaps we should replace this by Configure support | |
2998 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2999 | compatibility by calling rand() but allow the user to override it. | |
3000 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
3001 | */ | |
85ab1d1d JH |
3002 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
3003 | in addition to rand(). So the overrides should not be needed any more. | |
3004 | --Jarkko Hietaniemi 27 September 1998 | |
3005 | */ | |
3006 | ||
79072805 LW |
3007 | PP(pp_rand) |
3008 | { | |
80252599 | 3009 | if (!PL_srand_called) { |
85ab1d1d | 3010 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 3011 | PL_srand_called = TRUE; |
93dc8474 | 3012 | } |
fdf4dddd DD |
3013 | { |
3014 | dSP; | |
3015 | NV value; | |
fdf4dddd DD |
3016 | |
3017 | if (MAXARG < 1) | |
7e9044f9 FC |
3018 | { |
3019 | EXTEND(SP, 1); | |
fdf4dddd | 3020 | value = 1.0; |
7e9044f9 | 3021 | } |
fdf4dddd DD |
3022 | else { |
3023 | SV * const sv = POPs; | |
3024 | if(!sv) | |
3025 | value = 1.0; | |
3026 | else | |
3027 | value = SvNV(sv); | |
3028 | } | |
3029 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
a3463d96 DD |
3030 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
3031 | if (! Perl_isnan(value) && value == 0.0) | |
3032 | #else | |
659c4b96 | 3033 | if (value == 0.0) |
a3463d96 | 3034 | #endif |
fdf4dddd DD |
3035 | value = 1.0; |
3036 | { | |
3037 | dTARGET; | |
3038 | PUSHs(TARG); | |
3039 | PUTBACK; | |
3040 | value *= Drand01(); | |
3041 | sv_setnv_mg(TARG, value); | |
3042 | } | |
3043 | } | |
3044 | return NORMAL; | |
79072805 LW |
3045 | } |
3046 | ||
3047 | PP(pp_srand) | |
3048 | { | |
20b7effb | 3049 | dSP; dTARGET; |
f914a682 JL |
3050 | UV anum; |
3051 | ||
0a5f3363 | 3052 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
3053 | SV *top; |
3054 | char *pv; | |
3055 | STRLEN len; | |
3056 | int flags; | |
3057 | ||
3058 | top = POPs; | |
3059 | pv = SvPV(top, len); | |
3060 | flags = grok_number(pv, len, &anum); | |
3061 | ||
3062 | if (!(flags & IS_NUMBER_IN_UV)) { | |
3063 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
3064 | "Integer overflow in srand"); | |
3065 | anum = UV_MAX; | |
3066 | } | |
3067 | } | |
3068 | else { | |
3069 | anum = seed(); | |
3070 | } | |
3071 | ||
85ab1d1d | 3072 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 3073 | PL_srand_called = TRUE; |
da1010ec NC |
3074 | if (anum) |
3075 | XPUSHu(anum); | |
3076 | else { | |
3077 | /* Historically srand always returned true. We can avoid breaking | |
3078 | that like this: */ | |
3079 | sv_setpvs(TARG, "0 but true"); | |
3080 | XPUSHTARG; | |
3081 | } | |
83832992 | 3082 | RETURN; |
79072805 LW |
3083 | } |
3084 | ||
79072805 LW |
3085 | PP(pp_int) |
3086 | { | |
20b7effb | 3087 | dSP; dTARGET; |
6f1401dc | 3088 | tryAMAGICun_MG(int_amg, AMGf_numeric); |
774d564b | 3089 | { |
6f1401dc DM |
3090 | SV * const sv = TOPs; |
3091 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
3092 | /* XXX it's arguable that compiler casting to IV might be subtly |
3093 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
3094 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
3095 | relying on floating point to be accurate is a bug. */ | |
3096 | ||
c781a409 | 3097 | if (!SvOK(sv)) { |
922c4365 | 3098 | SETu(0); |
c781a409 RD |
3099 | } |
3100 | else if (SvIOK(sv)) { | |
3101 | if (SvIsUV(sv)) | |
6f1401dc | 3102 | SETu(SvUV_nomg(sv)); |
c781a409 | 3103 | else |
28e5dec8 | 3104 | SETi(iv); |
c781a409 | 3105 | } |
c781a409 | 3106 | else { |
6f1401dc | 3107 | const NV value = SvNV_nomg(sv); |
b9d05018 FC |
3108 | if (UNLIKELY(Perl_isinfnan(value))) |
3109 | SETn(value); | |
5bf8b78e | 3110 | else if (value >= 0.0) { |
28e5dec8 JH |
3111 | if (value < (NV)UV_MAX + 0.5) { |
3112 | SETu(U_V(value)); | |
3113 | } else { | |
059a1014 | 3114 | SETn(Perl_floor(value)); |
28e5dec8 | 3115 | } |
1048ea30 | 3116 | } |
28e5dec8 JH |
3117 | else { |
3118 | if (value > (NV)IV_MIN - 0.5) { | |
3119 | SETi(I_V(value)); | |
3120 | } else { | |
1bbae031 | 3121 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
3122 | } |
3123 | } | |
774d564b | 3124 | } |
79072805 | 3125 | } |
699e9491 | 3126 | return NORMAL; |
79072805 LW |
3127 | } |
3128 | ||
463ee0b2 LW |
3129 | PP(pp_abs) |
3130 | { | |
20b7effb | 3131 | dSP; dTARGET; |
6f1401dc | 3132 | tryAMAGICun_MG(abs_amg, AMGf_numeric); |
a0d0e21e | 3133 | { |
6f1401dc | 3134 | SV * const sv = TOPs; |
28e5dec8 | 3135 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 3136 | const IV iv = SvIV_nomg(sv); |
a227d84d | 3137 | |
800401ee | 3138 | if (!SvOK(sv)) { |
922c4365 | 3139 | SETu(0); |
800401ee JH |
3140 | } |
3141 | else if (SvIOK(sv)) { | |
28e5dec8 | 3142 | /* IVX is precise */ |
800401ee | 3143 | if (SvIsUV(sv)) { |
6f1401dc | 3144 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
3145 | } else { |
3146 | if (iv >= 0) { | |
3147 | SETi(iv); | |
3148 | } else { | |
3149 | if (iv != IV_MIN) { | |
3150 | SETi(-iv); | |
3151 | } else { | |
3152 | /* 2s complement assumption. Also, not really needed as | |
3153 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
b396d0d8 | 3154 | SETu((UV)IV_MIN); |
28e5dec8 | 3155 | } |
a227d84d | 3156 | } |
28e5dec8 JH |
3157 | } |
3158 | } else{ | |
6f1401dc | 3159 | const NV value = SvNV_nomg(sv); |
774d564b | 3160 | if (value < 0.0) |
1b6737cc | 3161 | SETn(-value); |
a4474c9e DD |
3162 | else |
3163 | SETn(value); | |
774d564b | 3164 | } |
a0d0e21e | 3165 | } |
067b7929 | 3166 | return NORMAL; |
463ee0b2 LW |
3167 | } |
3168 | ||
b1c05ba5 DM |
3169 | |
3170 | /* also used for: pp_hex() */ | |
3171 | ||
79072805 LW |
3172 | PP(pp_oct) |
3173 | { | |
20b7effb | 3174 | dSP; dTARGET; |
5c144d81 | 3175 | const char *tmps; |
53305cf1 | 3176 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 3177 | STRLEN len; |
53305cf1 NC |
3178 | NV result_nv; |
3179 | UV result_uv; | |
4e51bcca | 3180 | SV* const sv = TOPs; |
79072805 | 3181 | |
349d4f2f | 3182 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
3183 | if (DO_UTF8(sv)) { |
3184 | /* If Unicode, try to downgrade | |
3185 | * If not possible, croak. */ | |
1b6737cc | 3186 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
3187 | |
3188 | SvUTF8_on(tsv); | |
3189 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 3190 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 3191 | } |
daa2adfd NC |
3192 | if (PL_op->op_type == OP_HEX) |
3193 | goto hex; | |
3194 | ||
6f894ead | 3195 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 3196 | tmps++, len--; |
9e24b6e2 | 3197 | if (*tmps == '0') |
53305cf1 | 3198 | tmps++, len--; |
305b8651 | 3199 | if (isALPHA_FOLD_EQ(*tmps, 'x')) { |
daa2adfd | 3200 | hex: |
53305cf1 | 3201 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 3202 | } |
305b8651 | 3203 | else if (isALPHA_FOLD_EQ(*tmps, 'b')) |
53305cf1 | 3204 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 3205 | else |
53305cf1 NC |
3206 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
3207 | ||
3208 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
4e51bcca | 3209 | SETn(result_nv); |
53305cf1 NC |
3210 | } |
3211 | else { | |
4e51bcca | 3212 | SETu(result_uv); |
53305cf1 | 3213 | } |
4e51bcca | 3214 | return NORMAL; |
79072805 LW |
3215 | } |
3216 | ||
3217 | /* String stuff. */ | |
3218 | ||
3219 | PP(pp_length) | |
3220 | { | |
20b7effb | 3221 | dSP; dTARGET; |
0bd48802 | 3222 | SV * const sv = TOPs; |
a0ed51b3 | 3223 | |
7776003e DD |
3224 | U32 in_bytes = IN_BYTES; |
3225 | /* simplest case shortcut */ | |
3226 | /* turn off SVf_UTF8 in tmp flags if HINT_BYTES on*/ | |
3227 | U32 svflags = (SvFLAGS(sv) ^ (in_bytes << 26)) & (SVf_POK|SVs_GMG|SVf_UTF8); | |
6d59e610 | 3228 | STATIC_ASSERT_STMT(HINT_BYTES == 0x00000008 && SVf_UTF8 == 0x20000000 && (SVf_UTF8 == HINT_BYTES << 26)); |
7776003e DD |
3229 | SETs(TARG); |
3230 | ||
3231 | if(LIKELY(svflags == SVf_POK)) | |
3232 | goto simple_pv; | |
3233 | if(svflags & SVs_GMG) | |
3234 | mg_get(sv); | |
0f43fd57 | 3235 | if (SvOK(sv)) { |
7776003e DD |
3236 | if (!IN_BYTES) /* reread to avoid using an C auto/register */ |
3237 | sv_setiv(TARG, (IV)sv_len_utf8_nomg(sv)); | |
9f621bb0 | 3238 | else |
0f43fd57 FC |
3239 | { |
3240 | STRLEN len; | |
7776003e DD |
3241 | /* unrolled SvPV_nomg_const(sv,len) */ |
3242 | if(SvPOK_nog(sv)){ | |
3243 | simple_pv: | |
3244 | len = SvCUR(sv); | |
3245 | } else { | |
3246 | (void)sv_2pv_flags(sv, &len, 0|SV_CONST_RETURN); | |
3247 | } | |
3248 | sv_setiv(TARG, (IV)(len)); | |
0f43fd57 | 3249 | } |
656266fc | 3250 | } else { |
9407f9c1 | 3251 | if (!SvPADTMP(TARG)) { |
e03e82a0 | 3252 | sv_set_undef(TARG); |
7776003e DD |
3253 | } else { /* TARG is on stack at this point and is overwriten by SETs. |
3254 | This branch is the odd one out, so put TARG by default on | |
3255 | stack earlier to let local SP go out of liveness sooner */ | |
3256 | SETs(&PL_sv_undef); | |
3257 | goto no_set_magic; | |
3258 | } | |
92331800 | 3259 | } |
7776003e DD |
3260 | SvSETMAGIC(TARG); |
3261 | no_set_magic: | |
3262 | return NORMAL; /* no putback, SP didn't move in this opcode */ | |
79072805 LW |
3263 | } |
3264 | ||
83f78d1a FC |
3265 | /* Returns false if substring is completely outside original string. |
3266 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
3267 | always be true for an explicit 0. | |
3268 | */ | |
3269 | bool | |
ddeaf645 DD |
3270 | Perl_translate_substr_offsets( STRLEN curlen, IV pos1_iv, |
3271 | bool pos1_is_uv, IV len_iv, | |
3272 | bool len_is_uv, STRLEN *posp, | |
3273 | STRLEN *lenp) | |
83f78d1a FC |
3274 | { |
3275 | IV pos2_iv; | |
3276 | int pos2_is_uv; | |
3277 | ||
3278 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
3279 | ||
3280 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
3281 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3282 | pos1_iv += curlen; | |
3283 | } | |
3284 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
3285 | return FALSE; | |
3286 | ||
3287 | if (len_iv || len_is_uv) { | |
3288 | if (!len_is_uv && len_iv < 0) { | |
3289 | pos2_iv = curlen + len_iv; | |
3290 | if (curlen) | |
3291 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3292 | else | |
3293 | pos2_is_uv = 0; | |
3294 | } else { /* len_iv >= 0 */ | |
3295 | if (!pos1_is_uv && pos1_iv < 0) { | |
3296 | pos2_iv = pos1_iv + len_iv; | |
3297 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3298 | } else { | |
3299 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3300 | pos2_iv = curlen; | |
3301 | else | |
3302 | pos2_iv = pos1_iv+len_iv; | |
3303 | pos2_is_uv = 1; | |
3304 | } | |
3305 | } | |
3306 | } | |
3307 | else { | |
3308 | pos2_iv = curlen; | |
3309 | pos2_is_uv = 1; | |
3310 | } | |
3311 | ||
3312 | if (!pos2_is_uv && pos2_iv < 0) { | |
3313 | if (!pos1_is_uv && pos1_iv < 0) | |
3314 | return FALSE; | |
3315 | pos2_iv = 0; | |
3316 | } | |
3317 | else if (!pos1_is_uv && pos1_iv < 0) | |
3318 | pos1_iv = 0; | |
3319 | ||
3320 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3321 | pos2_iv = pos1_iv; | |
3322 | if ((UV)pos2_iv > curlen) | |
3323 | pos2_iv = curlen; | |
3324 | ||
3325 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3326 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3327 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3328 | ||
3329 | return TRUE; | |
3330 | } | |
3331 | ||
79072805 LW |
3332 | PP(pp_substr) |
3333 | { | |
20b7effb | 3334 | dSP; dTARGET; |
79072805 | 3335 | SV *sv; |
463ee0b2 | 3336 | STRLEN curlen; |
9402d6ed | 3337 | STRLEN utf8_curlen; |
777f7c56 EB |
3338 | SV * pos_sv; |
3339 | IV pos1_iv; | |
3340 | int pos1_is_uv; | |
777f7c56 EB |
3341 | SV * len_sv; |
3342 | IV len_iv = 0; | |
83f78d1a | 3343 | int len_is_uv = 0; |
24fcb59f | 3344 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3345 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3346 | const char *tmps; |
9402d6ed | 3347 | SV *repl_sv = NULL; |
cbbf8932 | 3348 | const char *repl = NULL; |
7b8d334a | 3349 | STRLEN repl_len; |
7bc95ae1 | 3350 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3351 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3352 | |
78f9721b SM |
3353 | if (num_args > 2) { |
3354 | if (num_args > 3) { | |
24fcb59f | 3355 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3356 | } |
3357 | if ((len_sv = POPs)) { | |
3358 | len_iv = SvIV(len_sv); | |
83f78d1a | 3359 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3360 | } |
7bc95ae1 | 3361 | else num_args--; |
5d82c453 | 3362 | } |
777f7c56 EB |
3363 | pos_sv = POPs; |
3364 | pos1_iv = SvIV(pos_sv); | |
3365 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3366 | sv = POPs; |
24fcb59f FC |
3367 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3368 | assert(!repl_sv); | |
3369 | repl_sv = POPs; | |
3370 | } | |
6582db62 | 3371 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3372 | SV * ret; |
3373 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3374 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3375 | LvTYPE(ret) = 'x'; | |
3376 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3377 | LvTARGOFF(ret) = | |
3378 | pos1_is_uv || pos1_iv >= 0 | |
3379 | ? (STRLEN)(UV)pos1_iv | |
3380 | : (LvFLAGS(ret) |= 1, (STRLEN)(UV)-pos1_iv); | |
3381 | LvTARGLEN(ret) = | |
3382 | len_is_uv || len_iv > 0 | |
3383 | ? (STRLEN)(UV)len_iv | |
3384 | : (LvFLAGS(ret) |= 2, (STRLEN)(UV)-len_iv); | |
3385 | ||
83f78d1a FC |
3386 | PUSHs(ret); /* avoid SvSETMAGIC here */ |
3387 | RETURN; | |
a74fb2cd | 3388 | } |
6582db62 FC |
3389 | if (repl_sv) { |
3390 | repl = SvPV_const(repl_sv, repl_len); | |
3391 | SvGETMAGIC(sv); | |
3392 | if (SvROK(sv)) | |
3393 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3394 | "Attempt to use reference as lvalue in substr" | |
3395 | ); | |
3396 | tmps = SvPV_force_nomg(sv, curlen); | |
3397 | if (DO_UTF8(repl_sv) && repl_len) { | |
3398 | if (!DO_UTF8(sv)) { | |
01680ee9 | 3399 | sv_utf8_upgrade_nomg(sv); |
6582db62 FC |
3400 | curlen = SvCUR(sv); |
3401 | } | |
3402 | } | |
3403 | else if (DO_UTF8(sv)) | |
3404 | repl_need_utf8_upgrade = TRUE; | |
3405 | } | |
3406 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3407 | if (DO_UTF8(sv)) { |
0d788f38 | 3408 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3409 | if (utf8_curlen == curlen) |
3410 | utf8_curlen = 0; | |
a0ed51b3 | 3411 | else |
9402d6ed | 3412 | curlen = utf8_curlen; |
a0ed51b3 | 3413 | } |
d1c2b58a | 3414 | else |
9402d6ed | 3415 | utf8_curlen = 0; |
a0ed51b3 | 3416 | |
83f78d1a FC |
3417 | { |
3418 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3419 | |
83f78d1a FC |
3420 | if (!translate_substr_offsets( |
3421 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3422 | )) goto bound_fail; | |
777f7c56 | 3423 | |
83f78d1a FC |
3424 | byte_len = len; |
3425 | byte_pos = utf8_curlen | |
0d788f38 | 3426 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3427 | |
2154eca7 | 3428 | tmps += byte_pos; |
bbddc9e0 CS |
3429 | |
3430 | if (rvalue) { | |
3431 | SvTAINTED_off(TARG); /* decontaminate */ | |
3432 | SvUTF8_off(TARG); /* decontaminate */ | |
3433 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3434 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3435 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3436 | #endif |
bbddc9e0 CS |
3437 | if (utf8_curlen) |
3438 | SvUTF8_on(TARG); | |
3439 | } | |
2154eca7 | 3440 | |
f7928d6c | 3441 | if (repl) { |
13e30c65 JH |
3442 | SV* repl_sv_copy = NULL; |
3443 | ||
3444 | if (repl_need_utf8_upgrade) { | |
3445 | repl_sv_copy = newSVsv(repl_sv); | |
3446 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3447 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3448 | } |
502d9230 | 3449 | if (!SvOK(sv)) |
500f3e18 | 3450 | SvPVCLEAR(sv); |
777f7c56 | 3451 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3452 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3453 | } |
79072805 | 3454 | } |
6a9665b0 FC |
3455 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) |
3456 | SP++; | |
3457 | else if (rvalue) { | |
bbddc9e0 CS |
3458 | SvSETMAGIC(TARG); |
3459 | PUSHs(TARG); | |
3460 | } | |
79072805 | 3461 | RETURN; |
777f7c56 | 3462 | |
7b52d656 | 3463 | bound_fail: |
83f78d1a | 3464 | if (repl) |
777f7c56 EB |
3465 | Perl_croak(aTHX_ "substr outside of string"); |
3466 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3467 | RETPUSHUNDEF; | |
79072805 LW |
3468 | } |
3469 | ||
3470 | PP(pp_vec) | |
3471 | { | |
20b7effb | 3472 | dSP; |
eb578fdb KW |
3473 | const IV size = POPi; |
3474 | const IV offset = POPi; | |
3475 | SV * const src = POPs; | |
1b6737cc | 3476 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3477 | SV * ret; |
a0d0e21e | 3478 | |
81e118e0 | 3479 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3480 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3481 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3482 | LvTYPE(ret) = 'v'; | |
3483 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3484 | LvTARGOFF(ret) = offset; | |
3485 | LvTARGLEN(ret) = size; | |
3486 | } | |
3487 | else { | |
3488 | dTARGET; | |
3489 | SvTAINTED_off(TARG); /* decontaminate */ | |
3490 | ret = TARG; | |
79072805 LW |
3491 | } |
3492 | ||
2154eca7 | 3493 | sv_setuv(ret, do_vecget(src, offset, size)); |
f9e95907 FC |
3494 | if (!lvalue) |
3495 | SvSETMAGIC(ret); | |
2154eca7 | 3496 | PUSHs(ret); |
79072805 LW |
3497 | RETURN; |
3498 | } | |
3499 | ||
b1c05ba5 DM |
3500 | |
3501 | /* also used for: pp_rindex() */ | |
3502 | ||
79072805 LW |
3503 | PP(pp_index) |
3504 | { | |
20b7effb | 3505 | dSP; dTARGET; |
79072805 LW |
3506 | SV *big; |
3507 | SV *little; | |
c445ea15 | 3508 | SV *temp = NULL; |
ad66a58c | 3509 | STRLEN biglen; |
2723d216 | 3510 | STRLEN llen = 0; |
b464e2b7 TC |
3511 | SSize_t offset = 0; |
3512 | SSize_t retval; | |
73ee8be2 NC |
3513 | const char *big_p; |
3514 | const char *little_p; | |
2f040f7f NC |
3515 | bool big_utf8; |
3516 | bool little_utf8; | |
2723d216 | 3517 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3518 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3519 | |
e1dccc0d Z |
3520 | if (threeargs) |
3521 | offset = POPi; | |
79072805 LW |
3522 | little = POPs; |
3523 | big = POPs; | |
73ee8be2 NC |
3524 | big_p = SvPV_const(big, biglen); |
3525 | little_p = SvPV_const(little, llen); | |
3526 | ||
e609e586 NC |
3527 | big_utf8 = DO_UTF8(big); |
3528 | little_utf8 = DO_UTF8(little); | |
3529 | if (big_utf8 ^ little_utf8) { | |
3530 | /* One needs to be upgraded. */ | |
8df0e7a2 | 3531 | if (little_utf8) { |
2f040f7f NC |
3532 | /* Well, maybe instead we might be able to downgrade the small |
3533 | string? */ | |
1eced8f8 | 3534 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3535 | &little_utf8); |
3536 | if (little_utf8) { | |
3537 | /* If the large string is ISO-8859-1, and it's not possible to | |
3538 | convert the small string to ISO-8859-1, then there is no | |
3539 | way that it could be found anywhere by index. */ | |
3540 | retval = -1; | |
3541 | goto fail; | |
3542 | } | |
e609e586 | 3543 | |
2f040f7f NC |
3544 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3545 | to ensure it will get free()d */ | |
3546 | little = temp = newSV(0); | |
73ee8be2 NC |
3547 | sv_usepvn(temp, pv, llen); |
3548 | little_p = SvPVX(little); | |
e609e586 | 3549 | } else { |
20e67ba1 | 3550 | temp = newSVpvn(little_p, llen); |
2f040f7f | 3551 | |
8df0e7a2 | 3552 | sv_utf8_upgrade(temp); |
20e67ba1 FC |
3553 | little = temp; |
3554 | little_p = SvPV_const(little, llen); | |
e609e586 NC |
3555 | } |
3556 | } | |
73ee8be2 NC |
3557 | if (SvGAMAGIC(big)) { |
3558 | /* Life just becomes a lot easier if I use a temporary here. | |
3559 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3560 | will trigger magic and overloading again, as will fbm_instr() | |
3561 | */ | |
59cd0e26 NC |
3562 | big = newSVpvn_flags(big_p, biglen, |
3563 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3564 | big_p = SvPVX(big); |
3565 | } | |
e4e44778 | 3566 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3567 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3568 | warn on undef, and we've already triggered a warning with the | |
3569 | SvPV_const some lines above. We can't remove that, as we need to | |
3570 | call some SvPV to trigger overloading early and find out if the | |
3571 | string is UTF-8. | |
8bd97c0c | 3572 | This is all getting too messy. The API isn't quite clean enough, |
73ee8be2 NC |
3573 | because data access has side effects. |
3574 | */ | |
59cd0e26 NC |
3575 | little = newSVpvn_flags(little_p, llen, |
3576 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3577 | little_p = SvPVX(little); |
3578 | } | |
e609e586 | 3579 | |
d3e26383 | 3580 | if (!threeargs) |
2723d216 | 3581 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3582 | else { |
ad66a58c | 3583 | if (big_utf8 && offset > 0) |
b464e2b7 | 3584 | offset = sv_pos_u2b_flags(big, offset, 0, SV_CONST_RETURN); |
73ee8be2 NC |
3585 | if (!is_index) |
3586 | offset += llen; | |
a0ed51b3 | 3587 | } |
79072805 LW |
3588 | if (offset < 0) |
3589 | offset = 0; | |
b464e2b7 | 3590 | else if (offset > (SSize_t)biglen) |
ad66a58c | 3591 | offset = biglen; |
73ee8be2 NC |
3592 | if (!(little_p = is_index |
3593 | ? fbm_instr((unsigned char*)big_p + offset, | |
3594 | (unsigned char*)big_p + biglen, little, 0) | |
3595 | : rninstr(big_p, big_p + offset, | |
3596 | little_p, little_p + llen))) | |
a0ed51b3 | 3597 | retval = -1; |
ad66a58c | 3598 | else { |
73ee8be2 | 3599 | retval = little_p - big_p; |
15c41403 | 3600 | if (retval > 1 && big_utf8) |
b464e2b7 | 3601 | retval = sv_pos_b2u_flags(big, retval, SV_CONST_RETURN); |
ad66a58c | 3602 | } |
ef8d46e8 | 3603 | SvREFCNT_dec(temp); |
2723d216 | 3604 | fail: |
e1dccc0d | 3605 | PUSHi(retval); |
79072805 LW |
3606 | RETURN; |
3607 | } | |
3608 | ||
3609 | PP(pp_sprintf) | |
3610 | { | |
20b7effb | 3611 | dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3612 | SvTAINTED_off(TARG); |
79072805 | 3613 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3614 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3615 | SP = ORIGMARK; |
3616 | PUSHTARG; | |
3617 | RETURN; | |
3618 | } | |
3619 | ||
79072805 LW |
3620 | PP(pp_ord) |
3621 | { | |
20b7effb | 3622 | dSP; dTARGET; |
1eced8f8 | 3623 | |
6ba92227 | 3624 | SV *argsv = TOPs; |
ba210ebe | 3625 | STRLEN len; |
349d4f2f | 3626 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3627 | |
6ba92227 | 3628 | SETu(DO_UTF8(argsv) |
4f6386b6 | 3629 | ? utf8n_to_uvchr(s, len, 0, UTF8_ALLOW_ANYUV) |
f3943cf2 | 3630 | : (UV)(*s)); |
68795e93 | 3631 | |
6ba92227 | 3632 | return NORMAL; |
79072805 LW |
3633 | } |
3634 | ||
463ee0b2 LW |
3635 | PP(pp_chr) |
3636 | { | |
20b7effb | 3637 | dSP; dTARGET; |
463ee0b2 | 3638 | char *tmps; |
8a064bd6 | 3639 | UV value; |
d3261b99 | 3640 | SV *top = TOPs; |
8a064bd6 | 3641 | |
71739502 | 3642 | SvGETMAGIC(top); |
9911fc4e FC |
3643 | if (UNLIKELY(SvAMAGIC(top))) |
3644 | top = sv_2num(top); | |
99f450cc | 3645 | if (UNLIKELY(isinfnansv(top))) |
147e3846 | 3646 | Perl_croak(aTHX_ "Cannot chr %" NVgf, SvNV(top)); |
1cd88304 JH |
3647 | else { |
3648 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3649 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
3650 | || | |
3651 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) | |
2cc2a5a0 KW |
3652 | && SvNV_nomg(top) < 0.0))) |
3653 | { | |
b3fe8680 FC |
3654 | if (ckWARN(WARN_UTF8)) { |
3655 | if (SvGMAGICAL(top)) { | |
3656 | SV *top2 = sv_newmortal(); | |
3657 | sv_setsv_nomg(top2, top); | |
3658 | top = top2; | |
3659 | } | |
1cd88304 | 3660 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
147e3846 | 3661 | "Invalid negative number (%" SVf ") in chr", SVfARG(top)); |
1cd88304 JH |
3662 | } |
3663 | value = UNICODE_REPLACEMENT; | |
3664 | } else { | |
3665 | value = SvUV_nomg(top); | |
3666 | } | |
8a064bd6 | 3667 | } |
463ee0b2 | 3668 | |
862a34c6 | 3669 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3670 | |
0064a8a9 | 3671 | if (value > 255 && !IN_BYTES) { |
5f560d8a | 3672 | SvGROW(TARG, (STRLEN)UVCHR_SKIP(value)+1); |
62961d2e | 3673 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3674 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3675 | *tmps = '\0'; |
3676 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3677 | SvUTF8_on(TARG); |
d3261b99 FC |
3678 | SETTARG; |
3679 | return NORMAL; | |
a0ed51b3 LW |
3680 | } |
3681 | ||
748a9306 | 3682 | SvGROW(TARG,2); |
463ee0b2 LW |
3683 | SvCUR_set(TARG, 1); |
3684 | tmps = SvPVX(TARG); | |
eb160463 | 3685 | *tmps++ = (char)value; |
748a9306 | 3686 | *tmps = '\0'; |
a0d0e21e | 3687 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3688 | |
d3261b99 FC |
3689 | SETTARG; |
3690 | return NORMAL; | |
463ee0b2 LW |
3691 | } |
3692 | ||
79072805 LW |
3693 | PP(pp_crypt) |
3694 | { | |
79072805 | 3695 | #ifdef HAS_CRYPT |
20b7effb | 3696 | dSP; dTARGET; |
5f74f29c | 3697 | dPOPTOPssrl; |
85c16d83 | 3698 | STRLEN len; |
10516c54 | 3699 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3700 | |
85c16d83 | 3701 | if (DO_UTF8(left)) { |
2bc69dc4 | 3702 | /* If Unicode, try to downgrade. |
f2791508 JH |
3703 | * If not possible, croak. |
3704 | * Yes, we made this up. */ | |
659fbb76 | 3705 | SV* const tsv = newSVpvn_flags(tmps, len, SVf_UTF8|SVs_TEMP); |
2bc69dc4 | 3706 | |
2bc69dc4 | 3707 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3708 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3709 | } |
05404ffe JH |
3710 | # ifdef USE_ITHREADS |
3711 | # ifdef HAS_CRYPT_R | |
3712 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3713 | /* This should be threadsafe because in ithreads there is only | |
3714 | * one thread per interpreter. If this would not be true, | |
3715 | * we would need a mutex to protect this malloc. */ | |
3716 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3717 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3718 | #if defined(__GLIBC__) || defined(__EMX__) | |
3719 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3720 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3721 | /* work around glibc-2.2.5 bug */ | |
3722 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3723 | } | |
05404ffe | 3724 | #endif |
6ab58e4d | 3725 | } |
05404ffe JH |
3726 | # endif /* HAS_CRYPT_R */ |
3727 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3728 | # ifdef FCRYPT |
83003860 | 3729 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3730 | # else |
83003860 | 3731 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3732 | # endif |
fbc76eb3 | 3733 | SvUTF8_off(TARG); |
ec93b65f | 3734 | SETTARG; |
4808266b | 3735 | RETURN; |
79072805 | 3736 | #else |
b13b2135 | 3737 | DIE(aTHX_ |
79072805 LW |
3738 | "The crypt() function is unimplemented due to excessive paranoia."); |
3739 | #endif | |
79072805 LW |
3740 | } |
3741 | ||
00f254e2 KW |
3742 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3743 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3744 | ||
b1c05ba5 DM |
3745 | |
3746 | /* also used for: pp_lcfirst() */ | |
3747 | ||
79072805 LW |
3748 | PP(pp_ucfirst) |
3749 | { | |
00f254e2 KW |
3750 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3751 | * changes. This means that possibly we can change in-place, ie., just | |
3752 | * take the source and change that one character and store it back, but not | |
3753 | * if read-only etc, or if the length changes */ | |
3754 | ||
39644a26 | 3755 | dSP; |
d54190f6 | 3756 | SV *source = TOPs; |
00f254e2 | 3757 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3758 | STRLEN need; |
3759 | SV *dest; | |
00f254e2 KW |
3760 | bool inplace; /* ? Convert first char only, in-place */ |
3761 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3762 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3763 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3764 | const U8 *s; |
3765 | U8 *d; | |
3766 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3767 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3768 | * stored as UTF-8 at s. */ | |
3769 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3770 | * lowercased) character stored in tmpbuf. May be either | |
3771 | * UTF-8 or not, but in either case is the number of bytes */ | |
d54190f6 | 3772 | |
841a5e18 | 3773 | s = (const U8*)SvPV_const(source, slen); |
a0ed51b3 | 3774 | |
00f254e2 KW |
3775 | /* We may be able to get away with changing only the first character, in |
3776 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3777 | * not convert in-place. */ | |
1921e031 | 3778 | inplace = !SvREADONLY(source) && SvPADTMP(source); |
00f254e2 KW |
3779 | |
3780 | /* First calculate what the changed first character should be. This affects | |
3781 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3782 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3783 | ||
3784 | if (! slen) { /* If empty */ | |
3785 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3786 | ulen = 0; |
00f254e2 KW |
3787 | } |
3788 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3789 | doing_utf8 = TRUE; |
17e95c9d | 3790 | ulen = UTF8SKIP(s); |
094a2f8c | 3791 | if (op_type == OP_UCFIRST) { |
130c5df3 | 3792 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 3793 | _to_utf8_title_flags(s, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3794 | #else |
5a6bb681 | 3795 | _to_utf8_title_flags(s, tmpbuf, &tculen, 0); |
130c5df3 | 3796 | #endif |
094a2f8c KW |
3797 | } |
3798 | else { | |
130c5df3 | 3799 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 3800 | _to_utf8_lower_flags(s, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3801 | #else |
5a6bb681 | 3802 | _to_utf8_lower_flags(s, tmpbuf, &tculen, 0); |
130c5df3 | 3803 | #endif |
094a2f8c | 3804 | } |
00f254e2 | 3805 | |
17e95c9d KW |
3806 | /* we can't do in-place if the length changes. */ |
3807 | if (ulen != tculen) inplace = FALSE; | |
3808 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3809 | } |
00f254e2 KW |
3810 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3811 | * latin1 is treated as caseless. Note that a locale takes | |
3812 | * precedence */ | |
167d19f2 | 3813 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3814 | tculen = 1; /* Most characters will require one byte, but this will |
3815 | * need to be overridden for the tricky ones */ | |
3816 | need = slen + 1; | |
3817 | ||
3818 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3819 | |
00f254e2 | 3820 | /* lower case the first letter: no trickiness for any character */ |
130c5df3 | 3821 | #ifdef USE_LOCALE_CTYPE |
780fcc9f KW |
3822 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
3823 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
3824 | *tmpbuf = toLOWER_LC(*s); | |
3825 | } | |
3826 | else | |
130c5df3 | 3827 | #endif |
780fcc9f KW |
3828 | { |
3829 | *tmpbuf = (IN_UNI_8_BIT) | |
3830 | ? toLOWER_LATIN1(*s) | |
3831 | : toLOWER(*s); | |
3832 | } | |
00f254e2 | 3833 | } |
130c5df3 | 3834 | #ifdef USE_LOCALE_CTYPE |
780fcc9f | 3835 | /* is ucfirst() */ |
d6ded950 | 3836 | else if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
3837 | if (IN_UTF8_CTYPE_LOCALE) { |
3838 | goto do_uni_rules; | |
3839 | } | |
3840 | ||
780fcc9f | 3841 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
31f05a37 KW |
3842 | *tmpbuf = (U8) toUPPER_LC(*s); /* This would be a bug if any |
3843 | locales have upper and title case | |
3844 | different */ | |
00f254e2 | 3845 | } |
130c5df3 | 3846 | #endif |
00f254e2 KW |
3847 | else if (! IN_UNI_8_BIT) { |
3848 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3849 | * on EBCDIC machines whatever the | |
3850 | * native function does */ | |
3851 | } | |
31f05a37 KW |
3852 | else { |
3853 | /* Here, is ucfirst non-UTF-8, not in locale (unless that locale is | |
3854 | * UTF-8, which we treat as not in locale), and cased latin1 */ | |
3855 | UV title_ord; | |
91191cf7 | 3856 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 3857 | do_uni_rules: |
91191cf7 | 3858 | #endif |
31f05a37 KW |
3859 | |
3860 | title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); | |
167d19f2 KW |
3861 | if (tculen > 1) { |
3862 | assert(tculen == 2); | |
3863 | ||
3864 | /* If the result is an upper Latin1-range character, it can | |
3865 | * still be represented in one byte, which is its ordinal */ | |
3866 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3867 | *tmpbuf = (U8) title_ord; | |
3868 | tculen = 1; | |
00f254e2 KW |
3869 | } |
3870 | else { | |
167d19f2 KW |
3871 | /* Otherwise it became more than one ASCII character (in |
3872 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3873 | * beyond Latin1, so the number of bytes changed, so can't | |
3874 | * replace just the first character in place. */ | |
3875 | inplace = FALSE; | |
3876 | ||
d14578b8 KW |
3877 | /* If the result won't fit in a byte, the entire result |
3878 | * will have to be in UTF-8. Assume worst case sizing in | |
3879 | * conversion. (all latin1 characters occupy at most two | |
3880 | * bytes in utf8) */ | |
167d19f2 KW |
3881 | if (title_ord > 255) { |
3882 | doing_utf8 = TRUE; | |
3883 | convert_source_to_utf8 = TRUE; | |
3884 | need = slen * 2 + 1; | |
3885 | ||
3886 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3887 | * (both) characters whose title case is above 255 is | |
3888 | * 2. */ | |
3889 | ulen = 2; | |
3890 | } | |
3891 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3892 | need = slen + 1 + 1; | |
3893 | } | |
00f254e2 | 3894 | } |
167d19f2 | 3895 | } |
00f254e2 KW |
3896 | } /* End of use Unicode (Latin1) semantics */ |
3897 | } /* End of changing the case of the first character */ | |
3898 | ||
3899 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3900 | * generate the result */ | |
3901 | if (inplace) { | |
3902 | ||
3903 | /* We can convert in place. This means we change just the first | |
3904 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3905 | dest = source; |
3906 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3907 | } else { | |
3908 | dTARGET; | |
3909 | ||
3910 | dest = TARG; | |
3911 | ||
00f254e2 KW |
3912 | /* Here, we can't convert in place; we earlier calculated how much |
3913 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3914 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3915 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3916 | (void)SvPOK_only(dest); |
3917 | ||
3918 | SETs(dest); | |
d54190f6 | 3919 | } |
44bc797b | 3920 | |
d54190f6 | 3921 | if (doing_utf8) { |
00f254e2 KW |
3922 | if (! inplace) { |
3923 | if (! convert_source_to_utf8) { | |
3924 | ||
3925 | /* Here both source and dest are in UTF-8, but have to create | |
3926 | * the entire output. We initialize the result to be the | |
3927 | * title/lower cased first character, and then append the rest | |
3928 | * of the string. */ | |
3929 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3930 | if (slen > ulen) { | |
3931 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3932 | } | |
3933 | } | |
3934 | else { | |
3935 | const U8 *const send = s + slen; | |
3936 | ||
3937 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3938 | * except we earlier UTF-8'd the first character of the source | |
3939 | * into tmpbuf. First put that into dest, and then append the | |
3940 | * rest of the source, converting it to UTF-8 as we go. */ | |
3941 | ||
3942 | /* Assert tculen is 2 here because the only two characters that | |
3943 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3944 | *d++ = *tmpbuf; | |
3945 | *d++ = *(tmpbuf + 1); | |
3946 | s++; /* We have just processed the 1st char */ | |
3947 | ||
3948 | for (; s < send; s++) { | |
3949 | d = uvchr_to_utf8(d, *s); | |
3950 | } | |
3951 | *d = '\0'; | |
3952 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3953 | } | |
d54190f6 | 3954 | SvUTF8_on(dest); |
a0ed51b3 | 3955 | } |
00f254e2 | 3956 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3957 | Copy(tmpbuf, d, tculen, U8); |
3958 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3959 | } |
094a2f8c | 3960 | |
a0ed51b3 | 3961 | } |
00f254e2 KW |
3962 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3963 | if (slen) { | |
00f254e2 KW |
3964 | if (inplace) { /* in-place, only need to change the 1st char */ |
3965 | *d = *tmpbuf; | |
3966 | } | |
3967 | else { /* Not in-place */ | |
3968 | ||
3969 | /* Copy the case-changed character(s) from tmpbuf */ | |
3970 | Copy(tmpbuf, d, tculen, U8); | |
3971 | d += tculen - 1; /* Code below expects d to point to final | |
3972 | * character stored */ | |
3973 | } | |
3974 | } | |
3975 | else { /* empty source */ | |
3976 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3977 | *d = *s; |
3978 | } | |
3979 | ||
00f254e2 KW |
3980 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3981 | * the destination to retain that flag */ | |
93e088e8 | 3982 | if (SvUTF8(source) && ! IN_BYTES) |
d54190f6 NC |
3983 | SvUTF8_on(dest); |
3984 | ||
00f254e2 | 3985 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3986 | /* This will copy the trailing NUL */ |
3987 | Copy(s + 1, d + 1, slen, U8); | |
3988 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3989 | } |
bbce6d69 | 3990 | } |
130c5df3 | 3991 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 3992 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
3993 | TAINT; |
3994 | SvTAINTED_on(dest); | |
3995 | } | |
130c5df3 | 3996 | #endif |
539689e7 FC |
3997 | if (dest != source && SvTAINTED(source)) |
3998 | SvTAINT(dest); | |
d54190f6 | 3999 | SvSETMAGIC(dest); |
3cb4e04f | 4000 | return NORMAL; |
79072805 LW |
4001 | } |
4002 | ||
67306194 NC |
4003 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
4004 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 4005 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
4006 | PP(pp_uc) |
4007 | { | |
39644a26 | 4008 | dSP; |
67306194 | 4009 | SV *source = TOPs; |
463ee0b2 | 4010 | STRLEN len; |
67306194 NC |
4011 | STRLEN min; |
4012 | SV *dest; | |
4013 | const U8 *s; | |
4014 | U8 *d; | |
79072805 | 4015 | |
67306194 NC |
4016 | SvGETMAGIC(source); |
4017 | ||
1921e031 | 4018 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
4019 | && !SvREADONLY(source) && SvPOK(source) |
4020 | && !DO_UTF8(source) | |
130c5df3 KW |
4021 | && ( |
4022 | #ifdef USE_LOCALE_CTYPE | |
4023 | (IN_LC_RUNTIME(LC_CTYPE)) | |
31f05a37 | 4024 | ? ! IN_UTF8_CTYPE_LOCALE |
130c5df3 KW |
4025 | : |
4026 | #endif | |
4027 | ! IN_UNI_8_BIT)) | |
31f05a37 KW |
4028 | { |
4029 | ||
4030 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
4031 | * make the loop tight, so we overwrite the source with the dest before | |
4032 | * looking at it, and we need to look at the original source | |
4033 | * afterwards. There would also need to be code added to handle | |
4034 | * switching to not in-place in midstream if we run into characters | |
4035 | * that change the length. Since being in locale overrides UNI_8_BIT, | |
4036 | * that latter becomes irrelevant in the above test; instead for | |
4037 | * locale, the size can't normally change, except if the locale is a | |
4038 | * UTF-8 one */ | |
67306194 NC |
4039 | dest = source; |
4040 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4041 | min = len + 1; | |
4042 | } else { | |
a0ed51b3 | 4043 | dTARGET; |
a0ed51b3 | 4044 | |
67306194 | 4045 | dest = TARG; |
128c9517 | 4046 | |
841a5e18 | 4047 | s = (const U8*)SvPV_nomg_const(source, len); |
67306194 NC |
4048 | min = len + 1; |
4049 | ||
4050 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 4051 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
4052 | (void)SvPOK_only(dest); |
4053 | ||
4054 | SETs(dest); | |
a0ed51b3 | 4055 | } |
31351b04 | 4056 | |
67306194 NC |
4057 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
4058 | to check DO_UTF8 again here. */ | |
4059 | ||
4060 | if (DO_UTF8(source)) { | |
4061 | const U8 *const send = s + len; | |
bfac13d4 | 4062 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
67306194 | 4063 | |
4c8a458a KW |
4064 | /* All occurrences of these are to be moved to follow any other marks. |
4065 | * This is context-dependent. We may not be passed enough context to | |
4066 | * move the iota subscript beyond all of them, but we do the best we can | |
4067 | * with what we're given. The result is always better than if we | |
4068 | * hadn't done this. And, the problem would only arise if we are | |
4069 | * passed a character without all its combining marks, which would be | |
4070 | * the caller's mistake. The information this is based on comes from a | |
4071 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
4072 | * itself) and so can't be checked properly to see if it ever gets | |
4073 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 4074 | bool in_iota_subscript = FALSE; |
00f254e2 | 4075 | |
67306194 | 4076 | while (s < send) { |
3e16b0e6 KW |
4077 | STRLEN u; |
4078 | STRLEN ulen; | |
4079 | UV uv; | |
7dbf68d2 | 4080 | if (in_iota_subscript && ! _is_utf8_mark(s)) { |
3e16b0e6 | 4081 | |
00f254e2 | 4082 | /* A non-mark. Time to output the iota subscript */ |
a78bc3c6 KW |
4083 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4084 | d += capital_iota_len; | |
00f254e2 | 4085 | in_iota_subscript = FALSE; |
8e058693 | 4086 | } |
00f254e2 | 4087 | |
8e058693 KW |
4088 | /* Then handle the current character. Get the changed case value |
4089 | * and copy it to the output buffer */ | |
00f254e2 | 4090 | |
8e058693 | 4091 | u = UTF8SKIP(s); |
130c5df3 | 4092 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 4093 | uv = _to_utf8_upper_flags(s, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4094 | #else |
5a6bb681 | 4095 | uv = _to_utf8_upper_flags(s, tmpbuf, &ulen, 0); |
130c5df3 | 4096 | #endif |
a78bc3c6 KW |
4097 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
4098 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
8e058693 | 4099 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 4100 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
4101 | { |
4102 | in_iota_subscript = TRUE; | |
4103 | } | |
4104 | else { | |
4105 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4106 | /* If the eventually required minimum size outgrows the | |
4107 | * available space, we need to grow. */ | |
4108 | const UV o = d - (U8*)SvPVX_const(dest); | |
4109 | ||
4110 | /* If someone uppercases one million U+03B0s we SvGROW() | |
4111 | * one million times. Or we could try guessing how much to | |
4112 | * allocate without allocating too much. Such is life. | |
4113 | * See corresponding comment in lc code for another option | |
4114 | * */ | |
10656159 | 4115 | d = o + (U8*) SvGROW(dest, min); |
8e058693 KW |
4116 | } |
4117 | Copy(tmpbuf, d, ulen, U8); | |
4118 | d += ulen; | |
4119 | } | |
4120 | s += u; | |
67306194 | 4121 | } |
4c8a458a | 4122 | if (in_iota_subscript) { |
a78bc3c6 KW |
4123 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4124 | d += capital_iota_len; | |
4c8a458a | 4125 | } |
67306194 NC |
4126 | SvUTF8_on(dest); |
4127 | *d = '\0'; | |
094a2f8c | 4128 | |
67306194 | 4129 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4c8a458a KW |
4130 | } |
4131 | else { /* Not UTF-8 */ | |
67306194 NC |
4132 | if (len) { |
4133 | const U8 *const send = s + len; | |
00f254e2 KW |
4134 | |
4135 | /* Use locale casing if in locale; regular style if not treating | |
4136 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4137 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4138 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4139 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
4140 | if (IN_UTF8_CTYPE_LOCALE) { |
4141 | goto do_uni_rules; | |
4142 | } | |
780fcc9f | 4143 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
67306194 | 4144 | for (; s < send; d++, s++) |
31f05a37 | 4145 | *d = (U8) toUPPER_LC(*s); |
31351b04 | 4146 | } |
130c5df3 KW |
4147 | else |
4148 | #endif | |
4149 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4150 | for (; s < send; d++, s++) { |
67306194 | 4151 | *d = toUPPER(*s); |
00f254e2 | 4152 | } |
31351b04 | 4153 | } |
00f254e2 | 4154 | else { |
91191cf7 | 4155 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4156 | do_uni_rules: |
91191cf7 | 4157 | #endif |
00f254e2 KW |
4158 | for (; s < send; d++, s++) { |
4159 | *d = toUPPER_LATIN1_MOD(*s); | |
d14578b8 KW |
4160 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) { |
4161 | continue; | |
4162 | } | |
00f254e2 KW |
4163 | |
4164 | /* The mainstream case is the tight loop above. To avoid | |
4165 | * extra tests in that, all three characters that require | |
4166 | * special handling are mapped by the MOD to the one tested | |
4167 | * just above. | |
4168 | * Use the source to distinguish between the three cases */ | |
4169 | ||
79e064b9 KW |
4170 | #if UNICODE_MAJOR_VERSION > 2 \ |
4171 | || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ | |
4172 | && UNICODE_DOT_DOT_VERSION >= 8) | |
00f254e2 KW |
4173 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { |
4174 | ||
4175 | /* uc() of this requires 2 characters, but they are | |
4176 | * ASCII. If not enough room, grow the string */ | |
4177 | if (SvLEN(dest) < ++min) { | |
4178 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4179 | d = o + (U8*) SvGROW(dest, min); |
00f254e2 KW |
4180 | } |
4181 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
4182 | continue; /* Back to the tight loop; still in ASCII */ | |
4183 | } | |
79e064b9 | 4184 | #endif |
00f254e2 KW |
4185 | |
4186 | /* The other two special handling characters have their | |
4187 | * upper cases outside the latin1 range, hence need to be | |
4188 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
4189 | * here we are somewhere in the middle of processing a | |
4190 | * non-UTF-8 string, and realize that we will have to convert | |
4191 | * the whole thing to UTF-8. What to do? There are | |
4192 | * several possibilities. The simplest to code is to | |
4193 | * convert what we have so far, set a flag, and continue on | |
4194 | * in the loop. The flag would be tested each time through | |
4195 | * the loop, and if set, the next character would be | |
4196 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
4197 | * to slow down the mainstream case at all for this fairly | |
4198 | * rare case, so I didn't want to add a test that didn't | |
4199 | * absolutely have to be there in the loop, besides the | |
4200 | * possibility that it would get too complicated for | |
4201 | * optimizers to deal with. Another possibility is to just | |
4202 | * give up, convert the source to UTF-8, and restart the | |
4203 | * function that way. Another possibility is to convert | |
4204 | * both what has already been processed and what is yet to | |
4205 | * come separately to UTF-8, then jump into the loop that | |
4206 | * handles UTF-8. But the most efficient time-wise of the | |
4207 | * ones I could think of is what follows, and turned out to | |
4208 | * not require much extra code. */ | |
4209 | ||
4210 | /* Convert what we have so far into UTF-8, telling the | |
4211 | * function that we know it should be converted, and to | |
4212 | * allow extra space for what we haven't processed yet. | |
4213 | * Assume the worst case space requirements for converting | |
4214 | * what we haven't processed so far: that it will require | |
4215 | * two bytes for each remaining source character, plus the | |
4216 | * NUL at the end. This may cause the string pointer to | |
4217 | * move, so re-find it. */ | |
4218 | ||
4219 | len = d - (U8*)SvPVX_const(dest); | |
4220 | SvCUR_set(dest, len); | |
4221 | len = sv_utf8_upgrade_flags_grow(dest, | |
4222 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
4223 | (send -s) * 2 + 1); | |
4224 | d = (U8*)SvPVX(dest) + len; | |
4225 | ||
00f254e2 KW |
4226 | /* Now process the remainder of the source, converting to |
4227 | * upper and UTF-8. If a resulting byte is invariant in | |
4228 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
4229 | * append it to the output. */ | |
00f254e2 | 4230 | for (; s < send; s++) { |
0ecfbd28 KW |
4231 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
4232 | d += len; | |
00f254e2 KW |
4233 | } |
4234 | ||
4235 | /* Here have processed the whole source; no need to continue | |
4236 | * with the outer loop. Each character has been converted | |
4237 | * to upper case and converted to UTF-8 */ | |
4238 | ||
4239 | break; | |
4240 | } /* End of processing all latin1-style chars */ | |
4241 | } /* End of processing all chars */ | |
4242 | } /* End of source is not empty */ | |
4243 | ||
67306194 | 4244 | if (source != dest) { |
00f254e2 | 4245 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
4246 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4247 | } | |
00f254e2 | 4248 | } /* End of isn't utf8 */ |
130c5df3 | 4249 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4250 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4251 | TAINT; |
4252 | SvTAINTED_on(dest); | |
4253 | } | |
130c5df3 | 4254 | #endif |
539689e7 FC |
4255 | if (dest != source && SvTAINTED(source)) |
4256 | SvTAINT(dest); | |
67306194 | 4257 | SvSETMAGIC(dest); |
3cb4e04f | 4258 | return NORMAL; |
79072805 LW |
4259 | } |
4260 | ||
4261 | PP(pp_lc) | |
4262 | { | |
39644a26 | 4263 | dSP; |
ec9af7d4 | 4264 | SV *source = TOPs; |
463ee0b2 | 4265 | STRLEN len; |
ec9af7d4 NC |
4266 | STRLEN min; |
4267 | SV *dest; | |
4268 | const U8 *s; | |
4269 | U8 *d; | |
79072805 | 4270 | |
ec9af7d4 NC |
4271 | SvGETMAGIC(source); |
4272 | ||
1921e031 | 4273 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
4274 | && !SvREADONLY(source) && SvPOK(source) |
4275 | && !DO_UTF8(source)) { | |
ec9af7d4 | 4276 | |
00f254e2 KW |
4277 | /* We can convert in place, as lowercasing anything in the latin1 range |
4278 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
4279 | dest = source; |
4280 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4281 | min = len + 1; | |
4282 | } else { | |
a0ed51b3 | 4283 | dTARGET; |
a0ed51b3 | 4284 | |
ec9af7d4 NC |
4285 | dest = TARG; |
4286 | ||
841a5e18 | 4287 | s = (const U8*)SvPV_nomg_const(source, len); |
ec9af7d4 | 4288 | min = len + 1; |
128c9517 | 4289 | |
ec9af7d4 | 4290 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 4291 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
4292 | (void)SvPOK_only(dest); |
4293 | ||
4294 | SETs(dest); | |
4295 | } | |
4296 | ||
4297 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
4298 | to check DO_UTF8 again here. */ | |
4299 | ||
4300 | if (DO_UTF8(source)) { | |
4301 | const U8 *const send = s + len; | |
4302 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
4303 | ||
4304 | while (s < send) { | |
06b5486a KW |
4305 | const STRLEN u = UTF8SKIP(s); |
4306 | STRLEN ulen; | |
00f254e2 | 4307 | |
130c5df3 | 4308 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 4309 | _to_utf8_lower_flags(s, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4310 | #else |
5a6bb681 | 4311 | _to_utf8_lower_flags(s, tmpbuf, &ulen, 0); |
130c5df3 | 4312 | #endif |
00f254e2 | 4313 | |
06b5486a | 4314 | /* Here is where we would do context-sensitive actions. See the |
6006ebd0 | 4315 | * commit message for 86510fb15 for why there isn't any */ |
00f254e2 | 4316 | |
06b5486a | 4317 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 4318 | |
06b5486a KW |
4319 | /* If the eventually required minimum size outgrows the |
4320 | * available space, we need to grow. */ | |
4321 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4322 | |
06b5486a KW |
4323 | /* If someone lowercases one million U+0130s we SvGROW() one |
4324 | * million times. Or we could try guessing how much to | |
4325 | * allocate without allocating too much. Such is life. | |
4326 | * Another option would be to grow an extra byte or two more | |
4327 | * each time we need to grow, which would cut down the million | |
4328 | * to 500K, with little waste */ | |
10656159 | 4329 | d = o + (U8*) SvGROW(dest, min); |
06b5486a | 4330 | } |
86510fb1 | 4331 | |
06b5486a KW |
4332 | /* Copy the newly lowercased letter to the output buffer we're |
4333 | * building */ | |
4334 | Copy(tmpbuf, d, ulen, U8); | |
4335 | d += ulen; | |
4336 | s += u; | |
00f254e2 | 4337 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4338 | SvUTF8_on(dest); |
4339 | *d = '\0'; | |
4340 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
00f254e2 | 4341 | } else { /* Not utf8 */ |
31351b04 | 4342 | if (len) { |
ec9af7d4 | 4343 | const U8 *const send = s + len; |
00f254e2 KW |
4344 | |
4345 | /* Use locale casing if in locale; regular style if not treating | |
4346 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4347 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4348 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4349 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
780fcc9f | 4350 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
ec9af7d4 NC |
4351 | for (; s < send; d++, s++) |
4352 | *d = toLOWER_LC(*s); | |
445bf929 | 4353 | } |
130c5df3 KW |
4354 | else |
4355 | #endif | |
4356 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4357 | for (; s < send; d++, s++) { |
ec9af7d4 | 4358 | *d = toLOWER(*s); |
00f254e2 KW |
4359 | } |
4360 | } | |
4361 | else { | |
4362 | for (; s < send; d++, s++) { | |
4363 | *d = toLOWER_LATIN1(*s); | |
4364 | } | |
31351b04 | 4365 | } |
bbce6d69 | 4366 | } |
ec9af7d4 NC |
4367 | if (source != dest) { |
4368 | *d = '\0'; | |
4369 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4370 | } | |
79072805 | 4371 | } |
130c5df3 | 4372 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4373 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4374 | TAINT; |
4375 | SvTAINTED_on(dest); | |
4376 | } | |
130c5df3 | 4377 | #endif |
539689e7 FC |
4378 | if (dest != source && SvTAINTED(source)) |
4379 | SvTAINT(dest); | |
ec9af7d4 | 4380 | SvSETMAGIC(dest); |
3cb4e04f | 4381 | return NORMAL; |
79072805 LW |
4382 | } |
4383 | ||
a0d0e21e | 4384 | PP(pp_quotemeta) |
79072805 | 4385 | { |
20b7effb | 4386 | dSP; dTARGET; |
1b6737cc | 4387 | SV * const sv = TOPs; |
a0d0e21e | 4388 | STRLEN len; |
eb578fdb | 4389 | const char *s = SvPV_const(sv,len); |
79072805 | 4390 | |
7e2040f0 | 4391 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4392 | if (len) { |
eb578fdb | 4393 | char *d; |
862a34c6 | 4394 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4395 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4396 | d = SvPVX(TARG); |
7e2040f0 | 4397 | if (DO_UTF8(sv)) { |
0dd2cdef | 4398 | while (len) { |
29050de5 | 4399 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4400 | bool to_quote = FALSE; |
4401 | ||
4402 | if (UTF8_IS_INVARIANT(*s)) { | |
4403 | if (_isQUOTEMETA(*s)) { | |
4404 | to_quote = TRUE; | |
4405 | } | |
4406 | } | |
4407 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
3fea7d29 | 4408 | if ( |
130c5df3 | 4409 | #ifdef USE_LOCALE_CTYPE |
20adcf7c KW |
4410 | /* In locale, we quote all non-ASCII Latin1 chars. |
4411 | * Otherwise use the quoting rules */ | |
3fea7d29 BF |
4412 | |
4413 | IN_LC_RUNTIME(LC_CTYPE) | |
4414 | || | |
4415 | #endif | |
a62b247b | 4416 | _isQUOTEMETA(EIGHT_BIT_UTF8_TO_NATIVE(*s, *(s + 1)))) |
2e2b2571 KW |
4417 | { |
4418 | to_quote = TRUE; | |
4419 | } | |
4420 | } | |
685289b5 | 4421 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4422 | to_quote = TRUE; |
4423 | } | |
4424 | ||
4425 | if (to_quote) { | |
4426 | *d++ = '\\'; | |
4427 | } | |
29050de5 KW |
4428 | if (ulen > len) |
4429 | ulen = len; | |
4430 | len -= ulen; | |
4431 | while (ulen--) | |
4432 | *d++ = *s++; | |
0dd2cdef | 4433 | } |
7e2040f0 | 4434 | SvUTF8_on(TARG); |
0dd2cdef | 4435 | } |
2e2b2571 KW |
4436 | else if (IN_UNI_8_BIT) { |
4437 | while (len--) { | |
4438 | if (_isQUOTEMETA(*s)) | |
4439 | *d++ = '\\'; | |
4440 | *d++ = *s++; | |
4441 | } | |
4442 | } | |
0dd2cdef | 4443 | else { |
2e2b2571 KW |
4444 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4445 | * including everything above ASCII */ | |
0dd2cdef | 4446 | while (len--) { |
adfec831 | 4447 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4448 | *d++ = '\\'; |
4449 | *d++ = *s++; | |
4450 | } | |
79072805 | 4451 | } |
a0d0e21e | 4452 | *d = '\0'; |
349d4f2f | 4453 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4454 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4455 | } |
a0d0e21e LW |
4456 | else |
4457 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4458 | SETTARG; |
cfe40115 | 4459 | return NORMAL; |
79072805 LW |
4460 | } |
4461 | ||
838f2281 BF |
4462 | PP(pp_fc) |
4463 | { | |
838f2281 BF |
4464 | dTARGET; |
4465 | dSP; | |
4466 | SV *source = TOPs; | |
4467 | STRLEN len; | |
4468 | STRLEN min; | |
4469 | SV *dest; | |
4470 | const U8 *s; | |
4471 | const U8 *send; | |
4472 | U8 *d; | |
bfac13d4 | 4473 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
9b63e895 KW |
4474 | #if UNICODE_MAJOR_VERSION > 3 /* no multifolds in early Unicode */ \ |
4475 | || (UNICODE_MAJOR_VERSION == 3 && ( UNICODE_DOT_VERSION > 0) \ | |
4476 | || UNICODE_DOT_DOT_VERSION > 0) | |
a4b69695 KW |
4477 | const bool full_folding = TRUE; /* This variable is here so we can easily |
4478 | move to more generality later */ | |
9b63e895 KW |
4479 | #else |
4480 | const bool full_folding = FALSE; | |
4481 | #endif | |
838f2281 | 4482 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) |
130c5df3 KW |
4483 | #ifdef USE_LOCALE_CTYPE |
4484 | | ( IN_LC_RUNTIME(LC_CTYPE) ? FOLD_FLAGS_LOCALE : 0 ) | |
4485 | #endif | |
4486 | ; | |
838f2281 BF |
4487 | |
4488 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4489 | * You are welcome(?) -Hugmeir | |
4490 | */ | |
4491 | ||
4492 | SvGETMAGIC(source); | |
4493 | ||
4494 | dest = TARG; | |
4495 | ||
4496 | if (SvOK(source)) { | |
4497 | s = (const U8*)SvPV_nomg_const(source, len); | |
4498 | } else { | |
4499 | if (ckWARN(WARN_UNINITIALIZED)) | |
4500 | report_uninit(source); | |
4501 | s = (const U8*)""; | |
4502 | len = 0; | |
4503 | } | |
4504 | ||
4505 | min = len + 1; | |
4506 | ||
4507 | SvUPGRADE(dest, SVt_PV); | |
4508 | d = (U8*)SvGROW(dest, min); | |
4509 | (void)SvPOK_only(dest); | |
4510 | ||
4511 | SETs(dest); | |
4512 | ||
4513 | send = s + len; | |
4514 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ | |
838f2281 BF |
4515 | while (s < send) { |
4516 | const STRLEN u = UTF8SKIP(s); | |
4517 | STRLEN ulen; | |
4518 | ||
445bf929 | 4519 | _to_utf8_fold_flags(s, tmpbuf, &ulen, flags); |
838f2281 BF |
4520 | |
4521 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4522 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4523 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4524 | } |
4525 | ||
4526 | Copy(tmpbuf, d, ulen, U8); | |
4527 | d += ulen; | |
4528 | s += u; | |
4529 | } | |
4530 | SvUTF8_on(dest); | |
838f2281 | 4531 | } /* Unflagged string */ |
0902dd32 | 4532 | else if (len) { |
130c5df3 | 4533 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4534 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ |
31f05a37 KW |
4535 | if (IN_UTF8_CTYPE_LOCALE) { |
4536 | goto do_uni_folding; | |
4537 | } | |
780fcc9f | 4538 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
838f2281 | 4539 | for (; s < send; d++, s++) |
ea36a843 | 4540 | *d = (U8) toFOLD_LC(*s); |
838f2281 | 4541 | } |
130c5df3 KW |
4542 | else |
4543 | #endif | |
4544 | if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
838f2281 | 4545 | for (; s < send; d++, s++) |
d22b930b | 4546 | *d = toFOLD(*s); |
838f2281 BF |
4547 | } |
4548 | else { | |
91191cf7 | 4549 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4550 | do_uni_folding: |
91191cf7 | 4551 | #endif |
d14578b8 KW |
4552 | /* For ASCII and the Latin-1 range, there's only two troublesome |
4553 | * folds, \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
22e255cb | 4554 | * casefolding becomes 'ss'; and \x{B5} (\N{MICRO SIGN}), which |
d14578b8 KW |
4555 | * under any fold becomes \x{3BC} (\N{GREEK SMALL LETTER MU}) -- |
4556 | * For the rest, the casefold is their lowercase. */ | |
838f2281 BF |
4557 | for (; s < send; d++, s++) { |
4558 | if (*s == MICRO_SIGN) { | |
d14578b8 KW |
4559 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
4560 | * which is outside of the latin-1 range. There's a couple | |
4561 | * of ways to deal with this -- khw discusses them in | |
4562 | * pp_lc/uc, so go there :) What we do here is upgrade what | |
4563 | * we had already casefolded, then enter an inner loop that | |
4564 | * appends the rest of the characters as UTF-8. */ | |
838f2281 BF |
4565 | len = d - (U8*)SvPVX_const(dest); |
4566 | SvCUR_set(dest, len); | |
4567 | len = sv_utf8_upgrade_flags_grow(dest, | |
4568 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
ea4d335b KW |
4569 | /* The max expansion for latin1 |
4570 | * chars is 1 byte becomes 2 */ | |
4571 | (send -s) * 2 + 1); | |
838f2281 BF |
4572 | d = (U8*)SvPVX(dest) + len; |
4573 | ||
a78bc3c6 KW |
4574 | Copy(GREEK_SMALL_LETTER_MU_UTF8, d, small_mu_len, U8); |
4575 | d += small_mu_len; | |
838f2281 BF |
4576 | s++; |
4577 | for (; s < send; s++) { | |
4578 | STRLEN ulen; | |
4579 | UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags); | |
6f2d5cbc | 4580 | if UVCHR_IS_INVARIANT(fc) { |
d14578b8 KW |
4581 | if (full_folding |
4582 | && *s == LATIN_SMALL_LETTER_SHARP_S) | |
4583 | { | |
838f2281 BF |
4584 | *d++ = 's'; |
4585 | *d++ = 's'; | |
4586 | } | |
4587 | else | |
4588 | *d++ = (U8)fc; | |
4589 | } | |
4590 | else { | |
4591 | Copy(tmpbuf, d, ulen, U8); | |
4592 | d += ulen; | |
4593 | } | |
4594 | } | |
4595 | break; | |
4596 | } | |
4597 | else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) { | |
d14578b8 KW |
4598 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4599 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4600 | if (SvLEN(dest) < ++min) { |
4601 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4602 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4603 | } |
4604 | *(d)++ = 's'; | |
4605 | *d = 's'; | |
4606 | } | |
d14578b8 KW |
4607 | else { /* If it's not one of those two, the fold is their lower |
4608 | case */ | |
838f2281 BF |
4609 | *d = toLOWER_LATIN1(*s); |
4610 | } | |
4611 | } | |
4612 | } | |
4613 | } | |
4614 | *d = '\0'; | |
4615 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4616 | ||
130c5df3 | 4617 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4618 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4619 | TAINT; |
4620 | SvTAINTED_on(dest); | |
4621 | } | |
130c5df3 | 4622 | #endif |
838f2281 BF |
4623 | if (SvTAINTED(source)) |
4624 | SvTAINT(dest); | |
4625 | SvSETMAGIC(dest); | |
4626 | RETURN; | |
4627 | } | |
4628 | ||
a0d0e21e | 4629 | /* Arrays. */ |
79072805 | 4630 | |
a0d0e21e | 4631 | PP(pp_aslice) |
79072805 | 4632 | { |
20b7effb | 4633 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4634 | AV *const av = MUTABLE_AV(POPs); |
4635 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4636 | |
a0d0e21e | 4637 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4638 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4639 | bool can_preserve = FALSE; | |
4640 | ||
4641 | if (localizing) { | |
4642 | MAGIC *mg; | |
4643 | HV *stash; | |
4644 | ||
4645 | can_preserve = SvCANEXISTDELETE(av); | |
4646 | } | |
4647 | ||
4648 | if (lval && localizing) { | |
eb578fdb | 4649 | SV **svp; |
c70927a6 | 4650 | SSize_t max = -1; |
924508f0 | 4651 | for (svp = MARK + 1; svp <= SP; svp++) { |
c70927a6 | 4652 | const SSize_t elem = SvIV(*svp); |
748a9306 LW |
4653 | if (elem > max) |
4654 | max = elem; | |
4655 | } | |
4656 | if (max > AvMAX(av)) | |
4657 | av_extend(av, max); | |
4658 | } | |
4ad10a0b | 4659 | |
a0d0e21e | 4660 | while (++MARK <= SP) { |
eb578fdb | 4661 | SV **svp; |
c70927a6 | 4662 | SSize_t elem = SvIV(*MARK); |
4ad10a0b | 4663 | bool preeminent = TRUE; |
a0d0e21e | 4664 | |
4ad10a0b VP |
4665 | if (localizing && can_preserve) { |
4666 | /* If we can determine whether the element exist, | |
4667 | * Try to preserve the existenceness of a tied array | |
4668 | * element by using EXISTS and DELETE if possible. | |
4669 | * Fallback to FETCH and STORE otherwise. */ | |
4670 | preeminent = av_exists(av, elem); | |
4671 | } | |
4672 | ||
a0d0e21e LW |
4673 | svp = av_fetch(av, elem, lval); |
4674 | if (lval) { | |
ce0d59fd | 4675 | if (!svp || !*svp) |
cea2e8a9 | 4676 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4677 | if (localizing) { |
4678 | if (preeminent) | |
4679 | save_aelem(av, elem, svp); | |
4680 | else | |
4681 | SAVEADELETE(av, elem); | |
4682 | } | |
79072805 | 4683 | } |
3280af22 | 4684 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4685 | } |
4686 | } | |
82334630 | 4687 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 4688 | MARK = ORIGMARK; |
04ab2c87 | 4689 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4690 | SP = MARK; |
4691 | } | |
79072805 LW |
4692 | RETURN; |
4693 | } | |
4694 | ||
6dd3e0f2 RZ |
4695 | PP(pp_kvaslice) |
4696 | { | |
20b7effb | 4697 | dSP; dMARK; |
6dd3e0f2 RZ |
4698 | AV *const av = MUTABLE_AV(POPs); |
4699 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4700 | SSize_t items = SP - MARK; |
6dd3e0f2 RZ |
4701 | |
4702 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4703 | const I32 flags = is_lvalue_sub(); | |
4704 | if (flags) { | |
4705 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4706 | /* diag_listed_as: Can't modify %s in %s */ |
6dd3e0f2 RZ |
4707 | Perl_croak(aTHX_ "Can't modify index/value array slice in list assignment"); |
4708 | lval = flags; | |
4709 | } | |
4710 | } | |
4711 | ||
4712 | MEXTEND(SP,items); | |
4713 | while (items > 1) { | |
4714 | *(MARK+items*2-1) = *(MARK+items); | |
4715 | items--; | |
4716 | } | |
4717 | items = SP-MARK; | |
4718 | SP += items; | |
4719 | ||
4720 | while (++MARK <= SP) { | |
4721 | SV **svp; | |
4722 | ||
4723 | svp = av_fetch(av, SvIV(*MARK), lval); | |
4724 | if (lval) { | |
4725 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4726 | DIE(aTHX_ PL_no_aelem, SvIV(*MARK)); | |
4727 | } | |
4728 | *MARK = sv_mortalcopy(*MARK); | |
4729 | } | |
4730 | *++MARK = svp ? *svp : &PL_sv_undef; | |
4731 | } | |
82334630 | 4732 | if (GIMME_V != G_ARRAY) { |
6dd3e0f2 RZ |
4733 | MARK = SP - items*2; |
4734 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4735 | SP = MARK; | |
4736 | } | |
4737 | RETURN; | |
4738 | } | |
4739 | ||
b1c05ba5 | 4740 | |
878d132a NC |
4741 | PP(pp_aeach) |
4742 | { | |
878d132a | 4743 | dSP; |
502c6561 | 4744 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4745 | const U8 gimme = GIMME_V; |
453d94a9 | 4746 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4747 | const IV current = (*iterp)++; |
4748 | ||
b9f2b683 | 4749 | if (current > av_tindex(array)) { |
878d132a NC |
4750 | *iterp = 0; |
4751 | if (gimme == G_SCALAR) | |
4752 | RETPUSHUNDEF; | |
4753 | else | |
4754 | RETURN; | |
4755 | } | |
4756 | ||
4757 | EXTEND(SP, 2); | |
e1dccc0d | 4758 | mPUSHi(current); |
878d132a NC |
4759 | if (gimme == G_ARRAY) { |
4760 | SV **const element = av_fetch(array, current, 0); | |
4761 | PUSHs(element ? *element : &PL_sv_undef); | |
4762 | } | |
4763 | RETURN; | |
4764 | } | |
4765 | ||
b1c05ba5 | 4766 | /* also used for: pp_avalues()*/ |
878d132a NC |
4767 | PP(pp_akeys) |
4768 | { | |
878d132a | 4769 | dSP; |
502c6561 | 4770 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4771 | const U8 gimme = GIMME_V; |
878d132a NC |
4772 | |
4773 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4774 | ||
4775 | if (gimme == G_SCALAR) { | |
4776 | dTARGET; | |
b9f2b683 | 4777 | PUSHi(av_tindex(array) + 1); |
878d132a NC |
4778 | } |
4779 | else if (gimme == G_ARRAY) { | |
738155d2 FC |
4780 | if (UNLIKELY(PL_op->op_private & OPpMAYBE_LVSUB)) { |
4781 | const I32 flags = is_lvalue_sub(); | |
4782 | if (flags && !(flags & OPpENTERSUB_INARGS)) | |
4783 | /* diag_listed_as: Can't modify %s in %s */ | |
4784 | Perl_croak(aTHX_ | |
4785 | "Can't modify keys on array in list assignment"); | |
4786 | } | |
4787 | { | |
878d132a | 4788 | IV n = Perl_av_len(aTHX_ array); |
e1dccc0d | 4789 | IV i; |
878d132a NC |
4790 | |
4791 | EXTEND(SP, n + 1); | |
4792 | ||
73665bc4 FC |
4793 | if ( PL_op->op_type == OP_AKEYS |
4794 | || ( PL_op->op_type == OP_AVHVSWITCH | |
cd642408 | 4795 | && (PL_op->op_private & 3) + OP_AEACH == OP_AKEYS )) |
73665bc4 | 4796 | { |
e1dccc0d | 4797 | for (i = 0; i <= n; i++) { |
878d132a NC |
4798 | mPUSHi(i); |
4799 | } | |
4800 | } | |
4801 | else { | |
4802 | for (i = 0; i <= n; i++) { | |
4803 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4804 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4805 | } | |
4806 | } | |
738155d2 | 4807 | } |
878d132a NC |
4808 | } |
4809 | RETURN; | |
4810 | } | |
4811 | ||
79072805 LW |
4812 | /* Associative arrays. */ |
4813 | ||
4814 | PP(pp_each) | |
4815 | { | |
39644a26 | 4816 | dSP; |
85fbaab2 | 4817 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4818 | HE *entry; |
1c23e2bd | 4819 | const U8 gimme = GIMME_V; |
8ec5e241 | 4820 | |
6d822dc4 | 4821 | entry = hv_iternext(hash); |
79072805 | 4822 | |
79072805 LW |
4823 | EXTEND(SP, 2); |
4824 | if (entry) { | |
1b6737cc | 4825 | SV* const sv = hv_iterkeysv(entry); |
2b32fed8 | 4826 | PUSHs(sv); |
54310121 | 4827 | if (gimme == G_ARRAY) { |
59af0135 | 4828 | SV *val; |
6d822dc4 | 4829 | val = hv_iterval(hash, entry); |
59af0135 | 4830 | PUSHs(val); |
79072805 | 4831 | } |
79072805 | 4832 | } |
54310121 | 4833 | else if (gimme == G_SCALAR) |
79072805 LW |
4834 | RETPUSHUNDEF; |
4835 | ||
4836 | RETURN; | |
4837 | } | |
4838 | ||
7332a6c4 VP |
4839 | STATIC OP * |
4840 | S_do_delete_local(pTHX) | |
79072805 | 4841 | { |
39644a26 | 4842 | dSP; |
1c23e2bd | 4843 | const U8 gimme = GIMME_V; |
7332a6c4 VP |
4844 | const MAGIC *mg; |
4845 | HV *stash; | |
ca3f996a | 4846 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
626040f7 | 4847 | SV **unsliced_keysv = sliced ? NULL : sp--; |
ca3f996a | 4848 | SV * const osv = POPs; |
626040f7 | 4849 | SV **mark = sliced ? PL_stack_base + POPMARK : unsliced_keysv-1; |
ca3f996a FC |
4850 | dORIGMARK; |
4851 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 4852 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
4853 | const bool can_preserve = SvCANEXISTDELETE(osv); |
4854 | const U32 type = SvTYPE(osv); | |
626040f7 | 4855 | SV ** const end = sliced ? SP : unsliced_keysv; |
ca3f996a FC |
4856 | |
4857 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 4858 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 4859 | while (++MARK <= end) { |
7332a6c4 VP |
4860 | SV * const keysv = *MARK; |
4861 | SV *sv = NULL; | |
4862 | bool preeminent = TRUE; | |
4863 | if (can_preserve) | |
4864 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4865 | if (tied) { | |
4866 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4867 | if (he) | |
4868 | sv = HeVAL(he); | |
4869 | else | |
4870 | preeminent = FALSE; | |
4871 | } | |
4872 | else { | |
4873 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
4874 | if (preeminent) |
4875 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4876 | } |
4877 | if (preeminent) { | |
be6064fd | 4878 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
4879 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
4880 | if (tied) { | |
4881 | *MARK = sv_mortalcopy(sv); | |
4882 | mg_clear(sv); | |
4883 | } else | |
4884 | *MARK = sv; | |
4885 | } | |
4886 | else { | |
4887 | SAVEHDELETE(hv, keysv); | |
4888 | *MARK = &PL_sv_undef; | |
4889 | } | |
4890 | } | |
ca3f996a FC |
4891 | } |
4892 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
4893 | if (PL_op->op_flags & OPf_SPECIAL) { |
4894 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 4895 | while (++MARK <= end) { |
c70927a6 | 4896 | SSize_t idx = SvIV(*MARK); |
7332a6c4 VP |
4897 | SV *sv = NULL; |
4898 | bool preeminent = TRUE; | |
4899 | if (can_preserve) | |
4900 | preeminent = av_exists(av, idx); | |
4901 | if (tied) { | |
4902 | SV **svp = av_fetch(av, idx, 1); | |
4903 | if (svp) | |
4904 | sv = *svp; | |
4905 | else | |
4906 | preeminent = FALSE; | |
4907 | } | |
4908 | else { | |
4909 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
4910 | if (preeminent) |
4911 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4912 | } |
4913 | if (preeminent) { | |
4914 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4915 | if (tied) { | |
4916 | *MARK = sv_mortalcopy(sv); | |
4917 | mg_clear(sv); | |
4918 | } else | |
4919 | *MARK = sv; | |
4920 | } | |
4921 | else { | |
4922 | SAVEADELETE(av, idx); | |
4923 | *MARK = &PL_sv_undef; | |
4924 | } | |
4925 | } | |
4926 | } | |
ca3f996a FC |
4927 | else |
4928 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4929 | } | |
4930 | else | |
7332a6c4 | 4931 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 4932 | if (sliced) { |
7332a6c4 VP |
4933 | if (gimme == G_VOID) |
4934 | SP = ORIGMARK; | |
4935 | else if (gimme == G_SCALAR) { | |
4936 | MARK = ORIGMARK; | |
4937 | if (SP > MARK) | |
4938 | *++MARK = *SP; | |
4939 | else | |
4940 | *++MARK = &PL_sv_undef; | |
4941 | SP = MARK; | |
4942 | } | |
4943 | } | |
ca3f996a | 4944 | else if (gimme != G_VOID) |
626040f7 | 4945 | PUSHs(*unsliced_keysv); |
7332a6c4 VP |
4946 | |
4947 | RETURN; | |
4948 | } | |
4949 | ||
4950 | PP(pp_delete) | |
4951 | { | |
7332a6c4 | 4952 | dSP; |
1c23e2bd | 4953 | U8 gimme; |
7332a6c4 VP |
4954 | I32 discard; |
4955 | ||
4956 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4957 | return do_delete_local(); | |
4958 | ||
4959 | gimme = GIMME_V; | |
4960 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4961 | |
533c011a | 4962 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 4963 | dMARK; dORIGMARK; |
85fbaab2 | 4964 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4965 | const U32 hvtype = SvTYPE(hv); |
01020589 GS |
4966 | if (hvtype == SVt_PVHV) { /* hash element */ |
4967 | while (++MARK <= SP) { | |
1b6737cc | 4968 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
4969 | *MARK = sv ? sv : &PL_sv_undef; |
4970 | } | |
5f05dabc | 4971 | } |
6d822dc4 MS |
4972 | else if (hvtype == SVt_PVAV) { /* array element */ |
4973 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4974 | while (++MARK <= SP) { | |
502c6561 | 4975 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
6d822dc4 MS |
4976 | *MARK = sv ? sv : &PL_sv_undef; |
4977 | } | |
4978 | } | |
01020589 GS |
4979 | } |
4980 | else | |
4981 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4982 | if (discard) |
4983 | SP = ORIGMARK; | |
4984 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4985 | MARK = ORIGMARK; |
9111c9c0 DM |
4986 | if (SP > MARK) |
4987 | *++MARK = *SP; | |
4988 | else | |
4989 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4990 | SP = MARK; |
4991 | } | |
4992 | } | |
4993 | else { | |
4994 | SV *keysv = POPs; | |
85fbaab2 | 4995 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4996 | SV *sv = NULL; |
97fcbf96 MB |
4997 | if (SvTYPE(hv) == SVt_PVHV) |
4998 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4999 | else if (SvTYPE(hv) == SVt_PVAV) { |
5000 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 5001 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
5002 | else |
5003 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 5004 | } |
97fcbf96 | 5005 | else |
cea2e8a9 | 5006 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 5007 | if (!sv) |
3280af22 | 5008 | sv = &PL_sv_undef; |
54310121 | 5009 | if (!discard) |
5010 | PUSHs(sv); | |
79072805 | 5011 | } |
79072805 LW |
5012 | RETURN; |
5013 | } | |
5014 | ||
a0d0e21e | 5015 | PP(pp_exists) |
79072805 | 5016 | { |
39644a26 | 5017 | dSP; |
afebc493 GS |
5018 | SV *tmpsv; |
5019 | HV *hv; | |
5020 | ||
c7e88ff3 | 5021 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 5022 | GV *gv; |
0bd48802 | 5023 | SV * const sv = POPs; |
f2c0649b | 5024 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
5025 | if (cv) |
5026 | RETPUSHYES; | |
5027 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
5028 | RETPUSHYES; | |
5029 | RETPUSHNO; | |
5030 | } | |
5031 | tmpsv = POPs; | |
85fbaab2 | 5032 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 5033 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 5034 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 5035 | RETPUSHYES; |
ef54e1a4 JH |
5036 | } |
5037 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 5038 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 5039 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
5040 | RETPUSHYES; |
5041 | } | |
ef54e1a4 JH |
5042 | } |
5043 | else { | |
cea2e8a9 | 5044 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 5045 | } |
a0d0e21e LW |
5046 | RETPUSHNO; |
5047 | } | |
79072805 | 5048 | |
a0d0e21e LW |
5049 | PP(pp_hslice) |
5050 | { | |
20b7effb | 5051 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
5052 | HV * const hv = MUTABLE_HV(POPs); |
5053 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 5054 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 5055 | bool can_preserve = FALSE; |
79072805 | 5056 | |
eb85dfd3 DM |
5057 | if (localizing) { |
5058 | MAGIC *mg; | |
5059 | HV *stash; | |
5060 | ||
2c5f48c2 | 5061 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 5062 | can_preserve = TRUE; |
eb85dfd3 DM |
5063 | } |
5064 | ||
6d822dc4 | 5065 | while (++MARK <= SP) { |
1b6737cc | 5066 | SV * const keysv = *MARK; |
6d822dc4 MS |
5067 | SV **svp; |
5068 | HE *he; | |
d30e492c VP |
5069 | bool preeminent = TRUE; |
5070 | ||
5071 | if (localizing && can_preserve) { | |
5072 | /* If we can determine whether the element exist, | |
5073 | * try to preserve the existenceness of a tied hash | |
5074 | * element by using EXISTS and DELETE if possible. | |
5075 | * Fallback to FETCH and STORE otherwise. */ | |
5076 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 5077 | } |
eb85dfd3 | 5078 | |
6d822dc4 | 5079 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 5080 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 5081 | |
6d822dc4 | 5082 | if (lval) { |
746f6409 | 5083 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 5084 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
5085 | } |
5086 | if (localizing) { | |
7a2e501a | 5087 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 5088 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
5089 | else if (preeminent) |
5090 | save_helem_flags(hv, keysv, svp, | |
5091 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
5092 | else | |
5093 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
5094 | } |
5095 | } | |
746f6409 | 5096 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 5097 | } |
82334630 | 5098 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 5099 | MARK = ORIGMARK; |
04ab2c87 | 5100 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 5101 | SP = MARK; |
79072805 | 5102 | } |
a0d0e21e LW |
5103 | RETURN; |
5104 | } | |
5105 | ||
5cae3edb RZ |
5106 | PP(pp_kvhslice) |
5107 | { | |
20b7effb | 5108 | dSP; dMARK; |
5cae3edb RZ |
5109 | HV * const hv = MUTABLE_HV(POPs); |
5110 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 5111 | SSize_t items = SP - MARK; |
5cae3edb RZ |
5112 | |
5113 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
5114 | const I32 flags = is_lvalue_sub(); | |
5115 | if (flags) { | |
5116 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 5117 | /* diag_listed_as: Can't modify %s in %s */ |
cc5f9b8a FC |
5118 | Perl_croak(aTHX_ "Can't modify key/value hash slice in %s assignment", |
5119 | GIMME_V == G_ARRAY ? "list" : "scalar"); | |
5cae3edb RZ |
5120 | lval = flags; |
5121 | } | |
5122 | } | |
5123 | ||
5124 | MEXTEND(SP,items); | |
5125 | while (items > 1) { | |
5126 | *(MARK+items*2-1) = *(MARK+items); | |
5127 | items--; | |
5128 | } | |
5129 | items = SP-MARK; | |
5130 | SP += items; | |
5131 | ||
5132 | while (++MARK <= SP) { | |
5133 | SV * const keysv = *MARK; | |
5134 | SV **svp; | |
5135 | HE *he; | |
5136 | ||
5137 | he = hv_fetch_ent(hv, keysv, lval, 0); | |
5138 | svp = he ? &HeVAL(he) : NULL; | |
5139 | ||
5140 | if (lval) { | |
5141 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
5142 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
5143 | } | |
5144 | *MARK = sv_mortalcopy(*MARK); | |
5145 | } | |
5146 | *++MARK = svp && *svp ? *svp : &PL_sv_undef; | |
5147 | } | |
82334630 | 5148 | if (GIMME_V != G_ARRAY) { |
5cae3edb RZ |
5149 | MARK = SP - items*2; |
5150 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
5151 | SP = MARK; | |
5152 | } | |
5153 | RETURN; | |
5154 | } | |
5155 | ||
a0d0e21e LW |
5156 | /* List operators. */ |
5157 | ||
5158 | PP(pp_list) | |
5159 | { | |
4fa715fa | 5160 | I32 markidx = POPMARK; |
82334630 | 5161 | if (GIMME_V != G_ARRAY) { |
4fa715fa DD |
5162 | SV **mark = PL_stack_base + markidx; |
5163 | dSP; | |
a0d0e21e LW |
5164 | if (++MARK <= SP) |
5165 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 5166 | else |
3280af22 | 5167 | *MARK = &PL_sv_undef; |
a0d0e21e | 5168 | SP = MARK; |
4fa715fa | 5169 | PUTBACK; |
79072805 | 5170 | } |
4fa715fa | 5171 | return NORMAL; |
79072805 LW |
5172 | } |
5173 | ||
a0d0e21e | 5174 | PP(pp_lslice) |
79072805 | 5175 | { |
39644a26 | 5176 | dSP; |
1b6737cc AL |
5177 | SV ** const lastrelem = PL_stack_sp; |
5178 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
5179 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 5180 | SV ** const firstrelem = lastlelem + 1; |
706a6ebc | 5181 | const U8 mod = PL_op->op_flags & OPf_MOD; |
1b6737cc | 5182 | |
eb578fdb KW |
5183 | const I32 max = lastrelem - lastlelem; |
5184 | SV **lelem; | |
a0d0e21e | 5185 | |
82334630 | 5186 | if (GIMME_V != G_ARRAY) { |
9e59c36b TC |
5187 | if (lastlelem < firstlelem) { |
5188 | *firstlelem = &PL_sv_undef; | |
5189 | } | |
5190 | else { | |
5191 | I32 ix = SvIV(*lastlelem); | |
5192 | if (ix < 0) | |
5193 | ix += max; | |
5194 | if (ix < 0 || ix >= max) | |
5195 | *firstlelem = &PL_sv_undef; | |
5196 | else | |
5197 | *firstlelem = firstrelem[ix]; | |
5198 | } | |
5199 | SP = firstlelem; | |
5200 | RETURN; | |
a0d0e21e LW |
5201 | } |
5202 | ||
5203 | if (max == 0) { | |
5204 | SP = firstlelem - 1; | |
5205 | RETURN; | |
5206 | } | |
5207 | ||
5208 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 5209 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 5210 | if (ix < 0) |
a0d0e21e | 5211 | ix += max; |
c73bf8e3 HS |
5212 | if (ix < 0 || ix >= max) |
5213 | *lelem = &PL_sv_undef; | |
5214 | else { | |
c73bf8e3 | 5215 | if (!(*lelem = firstrelem[ix])) |
3280af22 | 5216 | *lelem = &PL_sv_undef; |
60779a30 | 5217 | else if (mod && SvPADTMP(*lelem)) { |
706a6ebc | 5218 | *lelem = firstrelem[ix] = sv_mortalcopy(*lelem); |
60779a30 | 5219 | } |
748a9306 | 5220 | } |
79072805 | 5221 | } |
cbce292e | 5222 | SP = lastlelem; |
79072805 LW |
5223 | RETURN; |
5224 | } | |
5225 | ||
a0d0e21e LW |
5226 | PP(pp_anonlist) |
5227 | { | |
20b7effb | 5228 | dSP; dMARK; |
1b6737cc | 5229 | const I32 items = SP - MARK; |
ad64d0ec | 5230 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 5231 | SP = MARK; |
6e449a3a MHM |
5232 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
5233 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
5234 | RETURN; |
5235 | } | |
5236 | ||
5237 | PP(pp_anonhash) | |
79072805 | 5238 | { |
20b7effb | 5239 | dSP; dMARK; dORIGMARK; |
67e67fd7 | 5240 | HV* const hv = newHV(); |
8d455b9f | 5241 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 5242 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 5243 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
5244 | |
5245 | while (MARK < SP) { | |
3ed356df FC |
5246 | SV * const key = |
5247 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
5248 | SV *val; | |
a0d0e21e | 5249 | if (MARK < SP) |
3ed356df FC |
5250 | { |
5251 | MARK++; | |
5252 | SvGETMAGIC(*MARK); | |
5253 | val = newSV(0); | |
d187b712 | 5254 | sv_setsv_nomg(val, *MARK); |
3ed356df | 5255 | } |
a2a5de95 | 5256 | else |
3ed356df | 5257 | { |
a2a5de95 | 5258 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
5259 | val = newSV(0); |
5260 | } | |
f12c7020 | 5261 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 5262 | } |
a0d0e21e | 5263 | SP = ORIGMARK; |
8d455b9f | 5264 | XPUSHs(retval); |
79072805 LW |
5265 | RETURN; |
5266 | } | |
5267 | ||
a0d0e21e | 5268 | PP(pp_splice) |
79072805 | 5269 | { |
20b7effb | 5270 | dSP; dMARK; dORIGMARK; |
5cd408a2 | 5271 | int num_args = (SP - MARK); |
00576728 | 5272 | AV *ary = MUTABLE_AV(*++MARK); |
eb578fdb KW |
5273 | SV **src; |
5274 | SV **dst; | |
c70927a6 FC |
5275 | SSize_t i; |
5276 | SSize_t offset; | |
5277 | SSize_t length; | |
5278 | SSize_t newlen; | |
5279 | SSize_t after; | |
5280 | SSize_t diff; | |
ad64d0ec | 5281 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5282 | |
1b6737cc | 5283 | if (mg) { |
3e0cb5de | 5284 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
5285 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
5286 | sp - mark); | |
93965878 | 5287 | } |
79072805 | 5288 | |
a0d0e21e | 5289 | SP++; |
79072805 | 5290 | |
a0d0e21e | 5291 | if (++MARK < SP) { |
4ea561bc | 5292 | offset = i = SvIV(*MARK); |
a0d0e21e | 5293 | if (offset < 0) |
93965878 | 5294 | offset += AvFILLp(ary) + 1; |
84902520 | 5295 | if (offset < 0) |
cea2e8a9 | 5296 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
5297 | if (++MARK < SP) { |
5298 | length = SvIVx(*MARK++); | |
48cdf507 GA |
5299 | if (length < 0) { |
5300 | length += AvFILLp(ary) - offset + 1; | |
5301 | if (length < 0) | |
5302 | length = 0; | |
5303 | } | |
79072805 LW |
5304 | } |
5305 | else | |
a0d0e21e | 5306 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 5307 | } |
a0d0e21e LW |
5308 | else { |
5309 | offset = 0; | |
5310 | length = AvMAX(ary) + 1; | |
5311 | } | |
8cbc2e3b | 5312 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
5313 | if (num_args > 2) |
5314 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 5315 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 5316 | } |
93965878 | 5317 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
5318 | if (after < 0) { /* not that much array */ |
5319 | length += after; /* offset+length now in array */ | |
5320 | after = 0; | |
5321 | if (!AvALLOC(ary)) | |
5322 | av_extend(ary, 0); | |
5323 | } | |
5324 | ||
5325 | /* At this point, MARK .. SP-1 is our new LIST */ | |
5326 | ||
5327 | newlen = SP - MARK; | |
5328 | diff = newlen - length; | |
13d7cbc1 GS |
5329 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
5330 | av_reify(ary); | |
a0d0e21e | 5331 | |
50528de0 WL |
5332 | /* make new elements SVs now: avoid problems if they're from the array */ |
5333 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 5334 | SV * const h = *dst; |
f2b990bf | 5335 | *dst++ = newSVsv(h); |
50528de0 WL |
5336 | } |
5337 | ||
a0d0e21e | 5338 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 5339 | SV **tmparyval = NULL; |
a0d0e21e | 5340 | if (newlen) { |
a02a5408 | 5341 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 5342 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 5343 | } |
a0d0e21e LW |
5344 | |
5345 | MARK = ORIGMARK + 1; | |
82334630 | 5346 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
31c61add | 5347 | const bool real = cBOOL(AvREAL(ary)); |
a0d0e21e | 5348 | MEXTEND(MARK, length); |
31c61add | 5349 | if (real) |
bbce6d69 | 5350 | EXTEND_MORTAL(length); |
31c61add FC |
5351 | for (i = 0, dst = MARK; i < length; i++) { |
5352 | if ((*dst = AvARRAY(ary)[i+offset])) { | |
5353 | if (real) | |
486ec47a | 5354 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5355 | } |
31c61add FC |
5356 | else |
5357 | *dst = &PL_sv_undef; | |
5358 | dst++; | |
a0d0e21e LW |
5359 | } |
5360 | MARK += length - 1; | |
79072805 | 5361 | } |
a0d0e21e LW |
5362 | else { |
5363 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5364 | if (AvREAL(ary)) { | |
d689ffdd | 5365 | sv_2mortal(*MARK); |
a0d0e21e LW |
5366 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5367 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5368 | } |
92b69f65 FC |
5369 | if (!*MARK) |
5370 | *MARK = &PL_sv_undef; | |
a0d0e21e | 5371 | } |
93965878 | 5372 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5373 | |
5374 | /* pull up or down? */ | |
5375 | ||
5376 | if (offset < after) { /* easier to pull up */ | |
5377 | if (offset) { /* esp. if nothing to pull */ | |
5378 | src = &AvARRAY(ary)[offset-1]; | |
5379 | dst = src - diff; /* diff is negative */ | |
5380 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5381 | *dst-- = *src--; | |
79072805 | 5382 | } |
a0d0e21e | 5383 | dst = AvARRAY(ary); |
9c6bc640 | 5384 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5385 | AvMAX(ary) += diff; |
5386 | } | |
5387 | else { | |
5388 | if (after) { /* anything to pull down? */ | |
5389 | src = AvARRAY(ary) + offset + length; | |
5390 | dst = src + diff; /* diff is negative */ | |
5391 | Move(src, dst, after, SV*); | |
79072805 | 5392 | } |
93965878 | 5393 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5394 | /* avoid later double free */ |
5395 | } | |
5396 | i = -diff; | |
5397 | while (i) | |
ce0d59fd | 5398 | dst[--i] = NULL; |
a0d0e21e LW |
5399 | |
5400 | if (newlen) { | |
50528de0 | 5401 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5402 | Safefree(tmparyval); |
5403 | } | |
5404 | } | |
5405 | else { /* no, expanding (or same) */ | |
d3961450 | 5406 | SV** tmparyval = NULL; |
a0d0e21e | 5407 | if (length) { |
a02a5408 | 5408 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5409 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5410 | } | |
5411 | ||
5412 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5413 | /* push up or down? */ |
a0d0e21e LW |
5414 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5415 | if (offset) { | |
5416 | src = AvARRAY(ary); | |
5417 | dst = src - diff; | |
5418 | Move(src, dst, offset, SV*); | |
79072805 | 5419 | } |
9c6bc640 | 5420 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5421 | AvMAX(ary) += diff; |
93965878 | 5422 | AvFILLp(ary) += diff; |
79072805 LW |
5423 | } |
5424 | else { | |
93965878 NIS |
5425 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5426 | av_extend(ary, AvFILLp(ary) + diff); | |
5427 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5428 | |
5429 | if (after) { | |
93965878 | 5430 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5431 | src = dst - diff; |
5432 | for (i = after; i; i--) { | |
5433 | *dst-- = *src--; | |
5434 | } | |
79072805 LW |
5435 | } |
5436 | } | |
a0d0e21e LW |
5437 | } |
5438 | ||
50528de0 WL |
5439 | if (newlen) { |
5440 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5441 | } |
50528de0 | 5442 | |
a0d0e21e | 5443 | MARK = ORIGMARK + 1; |
82334630 | 5444 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
a0d0e21e | 5445 | if (length) { |
31c61add FC |
5446 | const bool real = cBOOL(AvREAL(ary)); |
5447 | if (real) | |
bbce6d69 | 5448 | EXTEND_MORTAL(length); |
31c61add FC |
5449 | for (i = 0, dst = MARK; i < length; i++) { |
5450 | if ((*dst = tmparyval[i])) { | |
5451 | if (real) | |
486ec47a | 5452 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5453 | } |
31c61add FC |
5454 | else *dst = &PL_sv_undef; |
5455 | dst++; | |
79072805 LW |
5456 | } |
5457 | } | |
a0d0e21e LW |
5458 | MARK += length - 1; |
5459 | } | |
5460 | else if (length--) { | |
5461 | *MARK = tmparyval[length]; | |
5462 | if (AvREAL(ary)) { | |
d689ffdd | 5463 | sv_2mortal(*MARK); |
a0d0e21e LW |
5464 | while (length-- > 0) |
5465 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5466 | } |
92b69f65 FC |
5467 | if (!*MARK) |
5468 | *MARK = &PL_sv_undef; | |
79072805 | 5469 | } |
a0d0e21e | 5470 | else |
3280af22 | 5471 | *MARK = &PL_sv_undef; |
d3961450 | 5472 | Safefree(tmparyval); |
79072805 | 5473 | } |
474af990 FR |
5474 | |
5475 | if (SvMAGICAL(ary)) | |
5476 | mg_set(MUTABLE_SV(ary)); | |
5477 | ||
a0d0e21e | 5478 | SP = MARK; |
79072805 LW |
5479 | RETURN; |
5480 | } | |
5481 | ||
a0d0e21e | 5482 | PP(pp_push) |
79072805 | 5483 | { |
20b7effb | 5484 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5485 | AV * const ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5486 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5487 | |
1b6737cc | 5488 | if (mg) { |
ad64d0ec | 5489 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5490 | PUSHMARK(MARK); |
5491 | PUTBACK; | |
d343c3ef | 5492 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5493 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5494 | LEAVE_with_name("call_PUSH"); |
01072573 | 5495 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5496 | } |
a60c0954 | 5497 | else { |
a68090fe DM |
5498 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5499 | * only need to save locally, not on the save stack */ | |
5500 | U16 old_delaymagic = PL_delaymagic; | |
5501 | ||
cb077ed2 | 5502 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5503 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5504 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5505 | SV *sv; |
5506 | if (*MARK) SvGETMAGIC(*MARK); | |
5507 | sv = newSV(0); | |
a60c0954 | 5508 | if (*MARK) |
3ed356df | 5509 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5510 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5511 | } |
354b0578 | 5512 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5513 | mg_set(MUTABLE_SV(ary)); |
a68090fe | 5514 | PL_delaymagic = old_delaymagic; |
6eeabd23 VP |
5515 | } |
5516 | SP = ORIGMARK; | |
5517 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5518 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5519 | } |
79072805 LW |
5520 | RETURN; |
5521 | } | |
5522 | ||
b1c05ba5 | 5523 | /* also used for: pp_pop()*/ |
a0d0e21e | 5524 | PP(pp_shift) |
79072805 | 5525 | { |
39644a26 | 5526 | dSP; |
538f5756 | 5527 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
94f9945d | 5528 | ? MUTABLE_AV(GvAVn(PL_defgv)) : MUTABLE_AV(POPs); |
789b4bc9 | 5529 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5530 | EXTEND(SP, 1); |
c2b4a044 | 5531 | assert (sv); |
d689ffdd | 5532 | if (AvREAL(av)) |
a0d0e21e LW |
5533 | (void)sv_2mortal(sv); |
5534 | PUSHs(sv); | |
79072805 | 5535 | RETURN; |
79072805 LW |
5536 | } |
5537 | ||
a0d0e21e | 5538 | PP(pp_unshift) |
79072805 | 5539 | { |
20b7effb | 5540 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5541 | AV *ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5542 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5543 | |
1b6737cc | 5544 | if (mg) { |
ad64d0ec | 5545 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5546 | PUSHMARK(MARK); |
93965878 | 5547 | PUTBACK; |
d343c3ef | 5548 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5549 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5550 | LEAVE_with_name("call_UNSHIFT"); |
01072573 | 5551 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5552 | } |
a60c0954 | 5553 | else { |
a68090fe DM |
5554 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5555 | * only need to save locally, not on the save stack */ | |
5556 | U16 old_delaymagic = PL_delaymagic; | |
c70927a6 | 5557 | SSize_t i = 0; |
a68090fe | 5558 | |
a60c0954 | 5559 | av_unshift(ary, SP - MARK); |
39539141 | 5560 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5561 | while (MARK < SP) { |
1b6737cc | 5562 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5563 | (void)av_store(ary, i++, sv); |
5564 | } | |
39539141 DIM |
5565 | if (PL_delaymagic & DM_ARRAY_ISA) |
5566 | mg_set(MUTABLE_SV(ary)); | |
a68090fe | 5567 | PL_delaymagic = old_delaymagic; |
79072805 | 5568 | } |
a0d0e21e | 5569 | SP = ORIGMARK; |
6eeabd23 | 5570 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5571 | PUSHi( AvFILL(ary) + 1 ); |
5572 | } | |
79072805 | 5573 | RETURN; |
79072805 LW |
5574 | } |
5575 | ||
a0d0e21e | 5576 | PP(pp_reverse) |
79072805 | 5577 | { |
20b7effb | 5578 | dSP; dMARK; |
79072805 | 5579 | |
82334630 | 5580 | if (GIMME_V == G_ARRAY) { |
484c818f VP |
5581 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5582 | AV *av; | |
5583 | ||
5584 | /* See pp_sort() */ | |
5585 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5586 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5587 | av = MUTABLE_AV((*SP)); | |
5588 | /* In-place reversing only happens in void context for the array | |
5589 | * assignment. We don't need to push anything on the stack. */ | |
5590 | SP = MARK; | |
5591 | ||
5592 | if (SvMAGICAL(av)) { | |
c70927a6 | 5593 | SSize_t i, j; |
eb578fdb | 5594 | SV *tmp = sv_newmortal(); |
484c818f VP |
5595 | /* For SvCANEXISTDELETE */ |
5596 | HV *stash; | |
5597 | const MAGIC *mg; | |
5598 | bool can_preserve = SvCANEXISTDELETE(av); | |
5599 | ||
b9f2b683 | 5600 | for (i = 0, j = av_tindex(av); i < j; ++i, --j) { |
eb578fdb | 5601 | SV *begin, *end; |
484c818f VP |
5602 | |
5603 | if (can_preserve) { | |
5604 | if (!av_exists(av, i)) { | |
5605 | if (av_exists(av, j)) { | |
eb578fdb | 5606 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5607 | begin = *av_fetch(av, i, TRUE); |
5608 | sv_setsv_mg(begin, sv); | |
5609 | } | |
5610 | continue; | |
5611 | } | |
5612 | else if (!av_exists(av, j)) { | |
eb578fdb | 5613 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5614 | end = *av_fetch(av, j, TRUE); |
5615 | sv_setsv_mg(end, sv); | |
5616 | continue; | |
5617 | } | |
5618 | } | |
5619 | ||
5620 | begin = *av_fetch(av, i, TRUE); | |
5621 | end = *av_fetch(av, j, TRUE); | |
5622 | sv_setsv(tmp, begin); | |
5623 | sv_setsv_mg(begin, end); | |
5624 | sv_setsv_mg(end, tmp); | |
5625 | } | |
5626 | } | |
5627 | else { | |
5628 | SV **begin = AvARRAY(av); | |
484c818f | 5629 | |
95a26d8e VP |
5630 | if (begin) { |
5631 | SV **end = begin + AvFILLp(av); | |
5632 | ||
5633 | while (begin < end) { | |
eb578fdb | 5634 | SV * const tmp = *begin; |
95a26d8e VP |
5635 | *begin++ = *end; |
5636 | *end-- = tmp; | |
5637 | } | |
484c818f VP |
5638 | } |
5639 | } | |
5640 | } | |
5641 | else { | |
5642 | SV **oldsp = SP; | |
5643 | MARK++; | |
5644 | while (MARK < SP) { | |
eb578fdb | 5645 | SV * const tmp = *MARK; |
484c818f VP |
5646 | *MARK++ = *SP; |
5647 | *SP-- = tmp; | |
5648 | } | |
5649 | /* safe as long as stack cannot get extended in the above */ | |
5650 | SP = oldsp; | |
a0d0e21e | 5651 | } |
79072805 LW |
5652 | } |
5653 | else { | |
eb578fdb KW |
5654 | char *up; |
5655 | char *down; | |
5656 | I32 tmp; | |
a0d0e21e LW |
5657 | dTARGET; |
5658 | STRLEN len; | |
79072805 | 5659 | |
7e2040f0 | 5660 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5661 | if (SP - MARK > 1) |
3280af22 | 5662 | do_join(TARG, &PL_sv_no, MARK, SP); |
1e21d011 | 5663 | else { |
64d3d9fe | 5664 | sv_setsv(TARG, SP > MARK ? *SP : DEFSV); |
1e21d011 B |
5665 | } |
5666 | ||
a0d0e21e LW |
5667 | up = SvPV_force(TARG, len); |
5668 | if (len > 1) { | |
7e2040f0 | 5669 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5670 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5671 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5672 | while (s < send) { |
d742c382 | 5673 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5674 | s++; |
5675 | continue; | |
5676 | } | |
5677 | else { | |
4b88fb76 | 5678 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5679 | break; |
dfe13c55 | 5680 | up = (char*)s; |
a0ed51b3 | 5681 | s += UTF8SKIP(s); |
dfe13c55 | 5682 | down = (char*)(s - 1); |
a0dbb045 | 5683 | /* reverse this character */ |
a0ed51b3 LW |
5684 | while (down > up) { |
5685 | tmp = *up; | |
5686 | *up++ = *down; | |
eb160463 | 5687 | *down-- = (char)tmp; |
a0ed51b3 LW |
5688 | } |
5689 | } | |
5690 | } | |
5691 | up = SvPVX(TARG); | |
5692 | } | |
a0d0e21e LW |
5693 | down = SvPVX(TARG) + len - 1; |
5694 | while (down > up) { | |
5695 | tmp = *up; | |
5696 | *up++ = *down; | |
eb160463 | 5697 | *down-- = (char)tmp; |
a0d0e21e | 5698 | } |
3aa33fe5 | 5699 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5700 | } |
a0d0e21e LW |
5701 | SP = MARK + 1; |
5702 | SETTARG; | |
79072805 | 5703 | } |
a0d0e21e | 5704 | RETURN; |
79072805 LW |
5705 | } |
5706 | ||
a0d0e21e | 5707 | PP(pp_split) |
79072805 | 5708 | { |
20b7effb | 5709 | dSP; dTARG; |
692044df DM |
5710 | AV *ary = ( (PL_op->op_private & OPpSPLIT_ASSIGN) /* @a = split */ |
5711 | && (PL_op->op_flags & OPf_STACKED)) /* @{expr} = split */ | |
5012eebe | 5712 | ? (AV *)POPs : NULL; |
eb578fdb | 5713 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5714 | SV * const sv = POPs; |
a0d0e21e | 5715 | STRLEN len; |
eb578fdb | 5716 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5717 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 5718 | const char *strend = s + len; |
5012eebe | 5719 | PMOP *pm = cPMOPx(PL_op); |
eb578fdb KW |
5720 | REGEXP *rx; |
5721 | SV *dstr; | |
5722 | const char *m; | |
c70927a6 | 5723 | SSize_t iters = 0; |
d14578b8 KW |
5724 | const STRLEN slen = do_utf8 |
5725 | ? utf8_length((U8*)s, (U8*)strend) | |
5726 | : (STRLEN)(strend - s); | |
c70927a6 | 5727 | SSize_t maxiters = slen + 10; |
c1a7495a | 5728 | I32 trailing_empty = 0; |
727b7506 | 5729 | const char *orig; |
052a7c76 | 5730 | const IV origlimit = limit; |
a0d0e21e LW |
5731 | I32 realarray = 0; |
5732 | I32 base; | |
1c23e2bd | 5733 | const U8 gimme = GIMME_V; |
941446f6 | 5734 | bool gimme_scalar; |
692044df | 5735 | I32 oldsave = PL_savestack_ix; |
437d3b4e | 5736 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5737 | bool multiline = 0; |
b37c2d43 | 5738 | MAGIC *mg = NULL; |
79072805 | 5739 | |
aaa362c4 | 5740 | rx = PM_GETRE(pm); |
bbce6d69 | 5741 | |
a62b1201 | 5742 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 5743 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5744 | |
692044df | 5745 | /* handle @ary = split(...) optimisation */ |
5012eebe DM |
5746 | if (PL_op->op_private & OPpSPLIT_ASSIGN) { |
5747 | if (!(PL_op->op_flags & OPf_STACKED)) { | |
692044df DM |
5748 | if (PL_op->op_private & OPpSPLIT_LEX) { |
5749 | if (PL_op->op_private & OPpLVAL_INTRO) | |
5750 | SAVECLEARSV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); | |
5012eebe | 5751 | ary = (AV *)PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff); |
692044df | 5752 | } |
5012eebe DM |
5753 | else { |
5754 | GV *gv = | |
971a9dd3 | 5755 | #ifdef USE_ITHREADS |
5012eebe | 5756 | MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); |
971a9dd3 | 5757 | #else |
5012eebe | 5758 | pm->op_pmreplrootu.op_pmtargetgv; |
20e98b0f | 5759 | #endif |
692044df DM |
5760 | if (PL_op->op_private & OPpLVAL_INTRO) |
5761 | ary = save_ary(gv); | |
5762 | else | |
5763 | ary = GvAVn(gv); | |
5012eebe | 5764 | } |
692044df DM |
5765 | /* skip anything pushed by OPpLVAL_INTRO above */ |
5766 | oldsave = PL_savestack_ix; | |
5012eebe DM |
5767 | } |
5768 | ||
a0d0e21e | 5769 | realarray = 1; |
8ec5e241 | 5770 | PUTBACK; |
a0d0e21e | 5771 | av_extend(ary,0); |
821956c5 | 5772 | (void)sv_2mortal(SvREFCNT_inc_simple_NN(sv)); |
a0d0e21e | 5773 | av_clear(ary); |
8ec5e241 | 5774 | SPAGAIN; |
ad64d0ec | 5775 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5776 | PUSHMARK(SP); |
ad64d0ec | 5777 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5778 | } |
5779 | else { | |
1c0b011c | 5780 | if (!AvREAL(ary)) { |
1b6737cc | 5781 | I32 i; |
1c0b011c | 5782 | AvREAL_on(ary); |
abff13bb | 5783 | AvREIFY_off(ary); |
1c0b011c | 5784 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 5785 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5786 | } |
5787 | /* temporarily switch stacks */ | |
8b7059b1 | 5788 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5789 | make_mortal = 0; |
1c0b011c | 5790 | } |
79072805 | 5791 | } |
5012eebe | 5792 | |
3280af22 | 5793 | base = SP - PL_stack_base; |
a0d0e21e | 5794 | orig = s; |
dbc200c5 | 5795 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 5796 | if (do_utf8) { |
7a207065 | 5797 | while (isSPACE_utf8_safe(s, strend)) |
613f191e TS |
5798 | s += UTF8SKIP(s); |
5799 | } | |
a62b1201 | 5800 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
bbce6d69 | 5801 | while (isSPACE_LC(*s)) |
5802 | s++; | |
5803 | } | |
5804 | else { | |
5805 | while (isSPACE(*s)) | |
5806 | s++; | |
5807 | } | |
a0d0e21e | 5808 | } |
73134a2e | 5809 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5810 | multiline = 1; |
c07a80fd | 5811 | } |
5812 | ||
941446f6 FC |
5813 | gimme_scalar = gimme == G_SCALAR && !ary; |
5814 | ||
a0d0e21e LW |
5815 | if (!limit) |
5816 | limit = maxiters + 2; | |
dbc200c5 | 5817 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5818 | while (--limit) { |
bbce6d69 | 5819 | m = s; |
8727f688 YO |
5820 | /* this one uses 'm' and is a negative test */ |
5821 | if (do_utf8) { | |
7a207065 | 5822 | while (m < strend && ! isSPACE_utf8_safe(m, strend) ) { |
613f191e | 5823 | const int t = UTF8SKIP(m); |
7a207065 | 5824 | /* isSPACE_utf8_safe returns FALSE for malform utf8 */ |
613f191e TS |
5825 | if (strend - m < t) |
5826 | m = strend; | |
5827 | else | |
5828 | m += t; | |
5829 | } | |
a62b1201 | 5830 | } |
d14578b8 KW |
5831 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5832 | { | |
8727f688 YO |
5833 | while (m < strend && !isSPACE_LC(*m)) |
5834 | ++m; | |
5835 | } else { | |
5836 | while (m < strend && !isSPACE(*m)) | |
5837 | ++m; | |
5838 | } | |
a0d0e21e LW |
5839 | if (m >= strend) |
5840 | break; | |
bbce6d69 | 5841 | |
c1a7495a BB |
5842 | if (gimme_scalar) { |
5843 | iters++; | |
5844 | if (m-s == 0) | |
5845 | trailing_empty++; | |
5846 | else | |
5847 | trailing_empty = 0; | |
5848 | } else { | |
5849 | dstr = newSVpvn_flags(s, m-s, | |
5850 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5851 | XPUSHs(dstr); | |
5852 | } | |
bbce6d69 | 5853 | |
613f191e TS |
5854 | /* skip the whitespace found last */ |
5855 | if (do_utf8) | |
5856 | s = m + UTF8SKIP(m); | |
5857 | else | |
5858 | s = m + 1; | |
5859 | ||
8727f688 YO |
5860 | /* this one uses 's' and is a positive test */ |
5861 | if (do_utf8) { | |
7a207065 | 5862 | while (s < strend && isSPACE_utf8_safe(s, strend) ) |
8727f688 | 5863 | s += UTF8SKIP(s); |
a62b1201 | 5864 | } |
d14578b8 KW |
5865 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5866 | { | |
8727f688 YO |
5867 | while (s < strend && isSPACE_LC(*s)) |
5868 | ++s; | |
5869 | } else { | |
5870 | while (s < strend && isSPACE(*s)) | |
5871 | ++s; | |
5872 | } | |
79072805 LW |
5873 | } |
5874 | } | |
07bc277f | 5875 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5876 | while (--limit) { |
a6e20a40 AL |
5877 | for (m = s; m < strend && *m != '\n'; m++) |
5878 | ; | |
a0d0e21e LW |
5879 | m++; |
5880 | if (m >= strend) | |
5881 | break; | |
c1a7495a BB |
5882 | |
5883 | if (gimme_scalar) { | |
5884 | iters++; | |
5885 | if (m-s == 0) | |
5886 | trailing_empty++; | |
5887 | else | |
5888 | trailing_empty = 0; | |
5889 | } else { | |
5890 | dstr = newSVpvn_flags(s, m-s, | |
5891 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5892 | XPUSHs(dstr); | |
5893 | } | |
a0d0e21e LW |
5894 | s = m; |
5895 | } | |
5896 | } | |
07bc277f | 5897 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5898 | /* |
5899 | Pre-extend the stack, either the number of bytes or | |
5900 | characters in the string or a limited amount, triggered by: | |
5901 | ||
5902 | my ($x, $y) = split //, $str; | |
5903 | or | |
5904 | split //, $str, $i; | |
5905 | */ | |
c1a7495a | 5906 | if (!gimme_scalar) { |
052a7c76 DM |
5907 | const IV items = limit - 1; |
5908 | /* setting it to -1 will trigger a panic in EXTEND() */ | |
5909 | const SSize_t sslen = slen > SSize_t_MAX ? -1 : (SSize_t)slen; | |
5910 | if (items >=0 && items < sslen) | |
c1a7495a BB |
5911 | EXTEND(SP, items); |
5912 | else | |
052a7c76 | 5913 | EXTEND(SP, sslen); |
c1a7495a | 5914 | } |
640f820d | 5915 | |
e9515b0f AB |
5916 | if (do_utf8) { |
5917 | while (--limit) { | |
5918 | /* keep track of how many bytes we skip over */ | |
5919 | m = s; | |
640f820d | 5920 | s += UTF8SKIP(s); |
c1a7495a BB |
5921 | if (gimme_scalar) { |
5922 | iters++; | |
5923 | if (s-m == 0) | |
5924 | trailing_empty++; | |
5925 | else | |
5926 | trailing_empty = 0; | |
5927 | } else { | |
5928 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5929 | |
c1a7495a BB |
5930 | PUSHs(dstr); |
5931 | } | |
640f820d | 5932 | |
e9515b0f AB |
5933 | if (s >= strend) |
5934 | break; | |
5935 | } | |
5936 | } else { | |
5937 | while (--limit) { | |
c1a7495a BB |
5938 | if (gimme_scalar) { |
5939 | iters++; | |
5940 | } else { | |
5941 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5942 | |
e9515b0f | 5943 | |
c1a7495a BB |
5944 | if (make_mortal) |
5945 | sv_2mortal(dstr); | |
640f820d | 5946 | |
c1a7495a BB |
5947 | PUSHs(dstr); |
5948 | } | |
5949 | ||
5950 | s++; | |
e9515b0f AB |
5951 | |
5952 | if (s >= strend) | |
5953 | break; | |
5954 | } | |
640f820d AB |
5955 | } |
5956 | } | |
3c8556c3 | 5957 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5958 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5959 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
8e1490ee | 5960 | && !(RX_EXTFLAGS(rx) & RXf_IS_ANCHORED)) { |
07bc277f | 5961 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); |
f9f4320a | 5962 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5963 | |
07bc277f | 5964 | len = RX_MINLENRET(rx); |
3c8556c3 | 5965 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5966 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5967 | while (--limit) { |
a6e20a40 AL |
5968 | for (m = s; m < strend && *m != c; m++) |
5969 | ; | |
a0d0e21e LW |
5970 | if (m >= strend) |
5971 | break; | |
c1a7495a BB |
5972 | if (gimme_scalar) { |
5973 | iters++; | |
5974 | if (m-s == 0) | |
5975 | trailing_empty++; | |
5976 | else | |
5977 | trailing_empty = 0; | |
5978 | } else { | |
5979 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5980 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5981 | XPUSHs(dstr); |
5982 | } | |
93f04dac JH |
5983 | /* The rx->minlen is in characters but we want to step |
5984 | * s ahead by bytes. */ | |
1aa99e6b IH |
5985 | if (do_utf8) |
5986 | s = (char*)utf8_hop((U8*)m, len); | |
5987 | else | |
5988 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5989 | } |
5990 | } | |
5991 | else { | |
a0d0e21e | 5992 | while (s < strend && --limit && |
f722798b | 5993 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5994 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5995 | { |
c1a7495a BB |
5996 | if (gimme_scalar) { |
5997 | iters++; | |
5998 | if (m-s == 0) | |
5999 | trailing_empty++; | |
6000 | else | |
6001 | trailing_empty = 0; | |
6002 | } else { | |
6003 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 6004 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
6005 | XPUSHs(dstr); |
6006 | } | |
93f04dac JH |
6007 | /* The rx->minlen is in characters but we want to step |
6008 | * s ahead by bytes. */ | |
1aa99e6b IH |
6009 | if (do_utf8) |
6010 | s = (char*)utf8_hop((U8*)m, len); | |
6011 | else | |
6012 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 6013 | } |
463ee0b2 | 6014 | } |
463ee0b2 | 6015 | } |
a0d0e21e | 6016 | else { |
07bc277f | 6017 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 6018 | while (s < strend && --limit) |
bbce6d69 | 6019 | { |
1b6737cc | 6020 | I32 rex_return; |
080c2dec | 6021 | PUTBACK; |
d14578b8 | 6022 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 6023 | sv, NULL, 0); |
080c2dec | 6024 | SPAGAIN; |
1b6737cc | 6025 | if (rex_return == 0) |
080c2dec | 6026 | break; |
d9f97599 | 6027 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
6028 | /* we never pass the REXEC_COPY_STR flag, so it should |
6029 | * never get copied */ | |
6030 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 6031 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
6032 | |
6033 | if (gimme_scalar) { | |
6034 | iters++; | |
6035 | if (m-s == 0) | |
6036 | trailing_empty++; | |
6037 | else | |
6038 | trailing_empty = 0; | |
6039 | } else { | |
6040 | dstr = newSVpvn_flags(s, m-s, | |
6041 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6042 | XPUSHs(dstr); | |
6043 | } | |
07bc277f | 6044 | if (RX_NPARENS(rx)) { |
1b6737cc | 6045 | I32 i; |
07bc277f NC |
6046 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
6047 | s = RX_OFFS(rx)[i].start + orig; | |
6048 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
6049 | |
6050 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
6051 | parens that didn't match -- they should be set to | |
6052 | undef, not the empty string */ | |
c1a7495a BB |
6053 | if (gimme_scalar) { |
6054 | iters++; | |
6055 | if (m-s == 0) | |
6056 | trailing_empty++; | |
6057 | else | |
6058 | trailing_empty = 0; | |
6059 | } else { | |
6060 | if (m >= orig && s >= orig) { | |
6061 | dstr = newSVpvn_flags(s, m-s, | |
6062 | (do_utf8 ? SVf_UTF8 : 0) | |
6063 | | make_mortal); | |
6064 | } | |
6065 | else | |
6066 | dstr = &PL_sv_undef; /* undef, not "" */ | |
6067 | XPUSHs(dstr); | |
748a9306 | 6068 | } |
c1a7495a | 6069 | |
a0d0e21e LW |
6070 | } |
6071 | } | |
07bc277f | 6072 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 6073 | } |
79072805 | 6074 | } |
8ec5e241 | 6075 | |
c1a7495a BB |
6076 | if (!gimme_scalar) { |
6077 | iters = (SP - PL_stack_base) - base; | |
6078 | } | |
a0d0e21e | 6079 | if (iters > maxiters) |
cea2e8a9 | 6080 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 6081 | |
a0d0e21e LW |
6082 | /* keep field after final delim? */ |
6083 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
6084 | if (!gimme_scalar) { |
6085 | const STRLEN l = strend - s; | |
6086 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6087 | XPUSHs(dstr); | |
6088 | } | |
a0d0e21e | 6089 | iters++; |
79072805 | 6090 | } |
a0d0e21e | 6091 | else if (!origlimit) { |
c1a7495a BB |
6092 | if (gimme_scalar) { |
6093 | iters -= trailing_empty; | |
6094 | } else { | |
6095 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
6096 | if (TOPs && !make_mortal) | |
6097 | sv_2mortal(TOPs); | |
71ca73e5 | 6098 | *SP-- = NULL; |
c1a7495a BB |
6099 | iters--; |
6100 | } | |
89900bd3 | 6101 | } |
a0d0e21e | 6102 | } |
8ec5e241 | 6103 | |
8b7059b1 DM |
6104 | PUTBACK; |
6105 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
6106 | SPAGAIN; | |
a0d0e21e | 6107 | if (realarray) { |
8ec5e241 | 6108 | if (!mg) { |
1c0b011c NIS |
6109 | if (SvSMAGICAL(ary)) { |
6110 | PUTBACK; | |
ad64d0ec | 6111 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
6112 | SPAGAIN; |
6113 | } | |
6114 | if (gimme == G_ARRAY) { | |
6115 | EXTEND(SP, iters); | |
6116 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
6117 | SP += iters; | |
6118 | RETURN; | |
6119 | } | |
8ec5e241 | 6120 | } |
1c0b011c | 6121 | else { |
fb73857a | 6122 | PUTBACK; |
d343c3ef | 6123 | ENTER_with_name("call_PUSH"); |
36925d9e | 6124 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 6125 | LEAVE_with_name("call_PUSH"); |
fb73857a | 6126 | SPAGAIN; |
8ec5e241 | 6127 | if (gimme == G_ARRAY) { |
c70927a6 | 6128 | SSize_t i; |
8ec5e241 NIS |
6129 | /* EXTEND should not be needed - we just popped them */ |
6130 | EXTEND(SP, iters); | |
6131 | for (i=0; i < iters; i++) { | |
6132 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 6133 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 6134 | } |
1c0b011c NIS |
6135 | RETURN; |
6136 | } | |
a0d0e21e LW |
6137 | } |
6138 | } | |
6139 | else { | |
6140 | if (gimme == G_ARRAY) | |
6141 | RETURN; | |
6142 | } | |
7f18b612 YST |
6143 | |
6144 | GETTARGET; | |
6145 | PUSHi(iters); | |
6146 | RETURN; | |
79072805 | 6147 | } |
85e6fe83 | 6148 | |
c5917253 NC |
6149 | PP(pp_once) |
6150 | { | |
6151 | dSP; | |
6152 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
6153 | ||
6154 | if (SvPADSTALE(sv)) { | |
6155 | /* First time. */ | |
6156 | SvPADSTALE_off(sv); | |
6157 | RETURNOP(cLOGOP->op_other); | |
6158 | } | |
6159 | RETURNOP(cLOGOP->op_next); | |
6160 | } | |
6161 | ||
c0329465 MB |
6162 | PP(pp_lock) |
6163 | { | |
39644a26 | 6164 | dSP; |
c0329465 | 6165 | dTOPss; |
e55aaa0e | 6166 | SV *retsv = sv; |
68795e93 | 6167 | SvLOCK(sv); |
f79aa60b FC |
6168 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
6169 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
6170 | retsv = refto(retsv); |
6171 | } | |
6172 | SETs(retsv); | |
c0329465 MB |
6173 | RETURN; |
6174 | } | |
a863c7d1 | 6175 | |
65bca31a | 6176 | |
10088f56 | 6177 | /* used for: pp_padany(), pp_custom(); plus any system ops |
b1c05ba5 DM |
6178 | * that aren't implemented on a particular platform */ |
6179 | ||
65bca31a NC |
6180 | PP(unimplemented_op) |
6181 | { | |
361ed549 NC |
6182 | const Optype op_type = PL_op->op_type; |
6183 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
6184 | with out of range op numbers - it only "special" cases op_custom. | |
6185 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
6186 | if we get here for a custom op then that means that the custom op didn't | |
6187 | have an implementation. Given that OP_NAME() looks up the custom op | |
6188 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
6189 | registers &PL_unimplemented_op as the address of their custom op. | |
6190 | NULL doesn't generate a useful error message. "custom" does. */ | |
6191 | const char *const name = op_type >= OP_max | |
6192 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
6193 | if(OP_IS_SOCKET(op_type)) |
6194 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 6195 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
6196 | } |
6197 | ||
bea284c8 FC |
6198 | static void |
6199 | S_maybe_unwind_defav(pTHX) | |
6200 | { | |
6201 | if (CX_CUR()->cx_type & CXp_HASARGS) { | |
6202 | PERL_CONTEXT *cx = CX_CUR(); | |
6203 | ||
6204 | assert(CxHASARGS(cx)); | |
6205 | cx_popsub_args(cx); | |
6206 | cx->cx_type &= ~CXp_HASARGS; | |
6207 | } | |
6208 | } | |
6209 | ||
deb8a388 FC |
6210 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
6211 | PP(pp_coreargs) | |
6212 | { | |
6213 | dSP; | |
7fa5bd9b | 6214 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 6215 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 6216 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
6217 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
6218 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 6219 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 6220 | bool seen_question = 0; |
7fa5bd9b | 6221 | const char *err = NULL; |
3e6568b4 | 6222 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 6223 | |
46e00a91 FC |
6224 | /* Count how many args there are first, to get some idea how far to |
6225 | extend the stack. */ | |
7fa5bd9b | 6226 | while (oa) { |
bf0571fd | 6227 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 6228 | maxargs++; |
46e00a91 FC |
6229 | if (oa & OA_OPTIONAL) seen_question = 1; |
6230 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
6231 | oa >>= 4; |
6232 | } | |
6233 | ||
6234 | if(numargs < minargs) err = "Not enough"; | |
6235 | else if(numargs > maxargs) err = "Too many"; | |
6236 | if (err) | |
6237 | /* diag_listed_as: Too many arguments for %s */ | |
6238 | Perl_croak(aTHX_ | |
6239 | "%s arguments for %s", err, | |
2a90c7c6 | 6240 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
6241 | ); |
6242 | ||
6243 | /* Reset the stack pointer. Without this, we end up returning our own | |
6244 | arguments in list context, in addition to the values we are supposed | |
6245 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 6246 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b | 6247 | nextstate. */ |
4ebe6e95 | 6248 | SP = PL_stack_base + CX_CUR()->blk_oldsp; |
7fa5bd9b | 6249 | |
46e00a91 FC |
6250 | if(!maxargs) RETURN; |
6251 | ||
bf0571fd FC |
6252 | /* We do this here, rather than with a separate pushmark op, as it has |
6253 | to come in between two things this function does (stack reset and | |
6254 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 6255 | if (pushmark) { |
bf0571fd FC |
6256 | PUTBACK; |
6257 | (void)Perl_pp_pushmark(aTHX); | |
6258 | } | |
6259 | ||
6260 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 6261 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
6262 | |
6263 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 6264 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 6265 | whicharg++; |
46e00a91 FC |
6266 | switch (oa & 7) { |
6267 | case OA_SCALAR: | |
1efec5ed | 6268 | try_defsv: |
d6d78e19 | 6269 | if (!numargs && defgv && whicharg == minargs + 1) { |
195eefec | 6270 | PUSHs(DEFSV); |
d6d78e19 FC |
6271 | } |
6272 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 6273 | break; |
bf0571fd FC |
6274 | case OA_LIST: |
6275 | while (numargs--) { | |
6276 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
6277 | svp++; | |
6278 | } | |
6279 | RETURN; | |
bea284c8 FC |
6280 | case OA_AVREF: |
6281 | if (!numargs) { | |
6282 | GV *gv; | |
6283 | if (CvUNIQUE(find_runcv_where(FIND_RUNCV_level_eq,1,NULL))) | |
6284 | gv = PL_argvgv; | |
6285 | else { | |
6286 | S_maybe_unwind_defav(aTHX); | |
6287 | gv = PL_defgv; | |
6288 | } | |
6289 | PUSHs((SV *)GvAVn(gv)); | |
6290 | break; | |
6291 | } | |
6292 | if (!svp || !*svp || !SvROK(*svp) | |
6293 | || SvTYPE(SvRV(*svp)) != SVt_PVAV) | |
6294 | DIE(aTHX_ | |
6295 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
6296 | "Type of arg %d to &CORE::%s must be array reference", | |
6297 | whicharg, PL_op_desc[opnum] | |
6298 | ); | |
6299 | PUSHs(SvRV(*svp)); | |
6300 | break; | |
19c481f4 FC |
6301 | case OA_HVREF: |
6302 | if (!svp || !*svp || !SvROK(*svp) | |
73665bc4 FC |
6303 | || ( SvTYPE(SvRV(*svp)) != SVt_PVHV |
6304 | && ( opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6305 | || SvTYPE(SvRV(*svp)) != SVt_PVAV ))) | |
19c481f4 FC |
6306 | DIE(aTHX_ |
6307 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
73665bc4 FC |
6308 | "Type of arg %d to &CORE::%s must be hash%s reference", |
6309 | whicharg, PL_op_desc[opnum], | |
6310 | opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6311 | ? "" | |
6312 | : " or array" | |
19c481f4 FC |
6313 | ); |
6314 | PUSHs(SvRV(*svp)); | |
6315 | break; | |
c931b036 | 6316 | case OA_FILEREF: |
30901a8a FC |
6317 | if (!numargs) PUSHs(NULL); |
6318 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
6319 | /* no magic here, as the prototype will have added an extra |
6320 | refgen and we just want what was there before that */ | |
6321 | PUSHs(SvRV(*svp)); | |
6322 | else { | |
6323 | const bool constr = PL_op->op_private & whicharg; | |
6324 | PUSHs(S_rv2gv(aTHX_ | |
6325 | svp && *svp ? *svp : &PL_sv_undef, | |
b54f893d | 6326 | constr, cBOOL(CopHINTS_get(PL_curcop) & HINT_STRICT_REFS), |
c931b036 FC |
6327 | !constr |
6328 | )); | |
6329 | } | |
6330 | break; | |
c72a5629 | 6331 | case OA_SCALARREF: |
1efec5ed FC |
6332 | if (!numargs) goto try_defsv; |
6333 | else { | |
17008668 FC |
6334 | const bool wantscalar = |
6335 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 6336 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
6337 | /* We have to permit globrefs even for the \$ proto, as |
6338 | *foo is indistinguishable from ${\*foo}, and the proto- | |
6339 | type permits the latter. */ | |
6340 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 6341 | wantscalar ? SVt_PVLV |
46bef06f FC |
6342 | : opnum == OP_LOCK || opnum == OP_UNDEF |
6343 | ? SVt_PVCV | |
efe889ae | 6344 | : SVt_PVHV |
17008668 | 6345 | ) |
c72a5629 FC |
6346 | ) |
6347 | DIE(aTHX_ | |
17008668 | 6348 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 6349 | whicharg, PL_op_name[opnum], |
17008668 FC |
6350 | wantscalar |
6351 | ? "scalar reference" | |
46bef06f | 6352 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
6353 | ? "reference to one of [$@%&*]" |
6354 | : "reference to one of [$@%*]" | |
c72a5629 FC |
6355 | ); |
6356 | PUSHs(SvRV(*svp)); | |
bea284c8 | 6357 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv) { |
88bb468b | 6358 | /* Undo @_ localisation, so that sub exit does not undo |
04e686b8 | 6359 | part of our undeffing. */ |
bea284c8 | 6360 | S_maybe_unwind_defav(aTHX); |
88bb468b | 6361 | } |
17008668 | 6362 | } |
1efec5ed | 6363 | break; |
46e00a91 | 6364 | default: |
46e00a91 FC |
6365 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
6366 | } | |
6367 | oa = oa >> 4; | |
6368 | } | |
6369 | ||
deb8a388 FC |
6370 | RETURN; |
6371 | } | |
6372 | ||
88101882 FC |
6373 | PP(pp_avhvswitch) |
6374 | { | |
a73158aa | 6375 | dVAR; dSP; |
73665bc4 FC |
6376 | return PL_ppaddr[ |
6377 | (SvTYPE(TOPs) == SVt_PVAV ? OP_AEACH : OP_EACH) | |
e1e26374 | 6378 | + (PL_op->op_private & OPpAVHVSWITCH_MASK) |
73665bc4 | 6379 | ](aTHX); |
88101882 FC |
6380 | } |
6381 | ||
84ed0108 FC |
6382 | PP(pp_runcv) |
6383 | { | |
6384 | dSP; | |
6385 | CV *cv; | |
6386 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 6387 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
6388 | } |
6389 | else cv = find_runcv(NULL); | |
e157a82b | 6390 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
6391 | RETURN; |
6392 | } | |
6393 | ||
05a34802 | 6394 | static void |
2331e434 | 6395 | S_localise_aelem_lval(pTHX_ AV * const av, SV * const keysv, |
05a34802 FC |
6396 | const bool can_preserve) |
6397 | { | |
2331e434 | 6398 | const SSize_t ix = SvIV(keysv); |
05a34802 FC |
6399 | if (can_preserve ? av_exists(av, ix) : TRUE) { |
6400 | SV ** const svp = av_fetch(av, ix, 1); | |
6401 | if (!svp || !*svp) | |
6402 | Perl_croak(aTHX_ PL_no_aelem, ix); | |
6403 | save_aelem(av, ix, svp); | |
6404 | } | |
6405 | else | |
6406 | SAVEADELETE(av, ix); | |
6407 | } | |
6408 | ||
5f94141d FC |
6409 | static void |
6410 | S_localise_helem_lval(pTHX_ HV * const hv, SV * const keysv, | |
6411 | const bool can_preserve) | |
6412 | { | |
6413 | if (can_preserve ? hv_exists_ent(hv, keysv, 0) : TRUE) { | |
6414 | HE * const he = hv_fetch_ent(hv, keysv, 1, 0); | |
6415 | SV ** const svp = he ? &HeVAL(he) : NULL; | |
6416 | if (!svp || !*svp) | |
6417 | Perl_croak(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
6418 | save_helem_flags(hv, keysv, svp, 0); | |
6419 | } | |
6420 | else | |
6421 | SAVEHDELETE(hv, keysv); | |
6422 | } | |
6423 | ||
9782ce69 FC |
6424 | static void |
6425 | S_localise_gv_slot(pTHX_ GV *gv, U8 type) | |
6426 | { | |
6427 | if (type == OPpLVREF_SV) { | |
6428 | save_pushptrptr(gv, SvREFCNT_inc_simple(GvSV(gv)), SAVEt_GVSV); | |
6429 | GvSV(gv) = 0; | |
6430 | } | |
6431 | else if (type == OPpLVREF_AV) | |
6432 | /* XXX Inefficient, as it creates a new AV, which we are | |
6433 | about to clobber. */ | |
6434 | save_ary(gv); | |
6435 | else { | |
6436 | assert(type == OPpLVREF_HV); | |
6437 | /* XXX Likewise inefficient. */ | |
6438 | save_hash(gv); | |
6439 | } | |
6440 | } | |
6441 | ||
6442 | ||
254da51f FC |
6443 | PP(pp_refassign) |
6444 | { | |
4fec8804 | 6445 | dSP; |
6102323a | 6446 | SV * const key = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
d8a875d9 | 6447 | SV * const left = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
4fec8804 | 6448 | dTOPss; |
3f114923 | 6449 | const char *bad = NULL; |
ac0da85a | 6450 | const U8 type = PL_op->op_private & OPpLVREF_TYPE; |
4fec8804 | 6451 | if (!SvROK(sv)) DIE(aTHX_ "Assigned value is not a reference"); |
ac0da85a | 6452 | switch (type) { |
3f114923 FC |
6453 | case OPpLVREF_SV: |
6454 | if (SvTYPE(SvRV(sv)) > SVt_PVLV) | |
6455 | bad = " SCALAR"; | |
6456 | break; | |
6457 | case OPpLVREF_AV: | |
6458 | if (SvTYPE(SvRV(sv)) != SVt_PVAV) | |
6459 | bad = "n ARRAY"; | |
6460 | break; | |
6461 | case OPpLVREF_HV: | |
6462 | if (SvTYPE(SvRV(sv)) != SVt_PVHV) | |
6463 | bad = " HASH"; | |
6464 | break; | |
6465 | case OPpLVREF_CV: | |
6466 | if (SvTYPE(SvRV(sv)) != SVt_PVCV) | |
6467 | bad = " CODE"; | |
6468 | } | |
6469 | if (bad) | |
1f8155a2 | 6470 | /* diag_listed_as: Assigned value is not %s reference */ |
3f114923 | 6471 | DIE(aTHX_ "Assigned value is not a%s reference", bad); |
b943805e JH |
6472 | { |
6473 | MAGIC *mg; | |
6474 | HV *stash; | |
d8a875d9 FC |
6475 | switch (left ? SvTYPE(left) : 0) { |
6476 | case 0: | |
cf5d2d91 FC |
6477 | { |
6478 | SV * const old = PAD_SV(ARGTARG); | |
d8a875d9 | 6479 | PAD_SETSV(ARGTARG, SvREFCNT_inc_NN(SvRV(sv))); |
cf5d2d91 | 6480 | SvREFCNT_dec(old); |
3ad7d304 FC |
6481 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpPAD_STATE)) |
6482 | == OPpLVAL_INTRO) | |
fc048fcf | 6483 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
d8a875d9 | 6484 | break; |
cf5d2d91 | 6485 | } |
d8a875d9 | 6486 | case SVt_PVGV: |
2a57afb1 | 6487 | if (PL_op->op_private & OPpLVAL_INTRO) { |
9782ce69 | 6488 | S_localise_gv_slot(aTHX_ (GV *)left, type); |
2a57afb1 | 6489 | } |
d8a875d9 FC |
6490 | gv_setref(left, sv); |
6491 | SvSETMAGIC(left); | |
6102323a FC |
6492 | break; |
6493 | case SVt_PVAV: | |
69a23520 | 6494 | assert(key); |
40d2b828 | 6495 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
2331e434 | 6496 | S_localise_aelem_lval(aTHX_ (AV *)left, key, |
05a34802 | 6497 | SvCANEXISTDELETE(left)); |
40d2b828 | 6498 | } |
6102323a FC |
6499 | av_store((AV *)left, SvIV(key), SvREFCNT_inc_simple_NN(SvRV(sv))); |
6500 | break; | |
5f94141d | 6501 | case SVt_PVHV: |
69a23520 JH |
6502 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
6503 | assert(key); | |
5f94141d FC |
6504 | S_localise_helem_lval(aTHX_ (HV *)left, key, |
6505 | SvCANEXISTDELETE(left)); | |
69a23520 | 6506 | } |
7fcb36d5 | 6507 | (void)hv_store_ent((HV *)left, key, SvREFCNT_inc_simple_NN(SvRV(sv)), 0); |
d8a875d9 | 6508 | } |
4fec8804 FC |
6509 | if (PL_op->op_flags & OPf_MOD) |
6510 | SETs(sv_2mortal(newSVsv(sv))); | |
6511 | /* XXX else can weak references go stale before they are read, e.g., | |
6512 | in leavesub? */ | |
6513 | RETURN; | |
b943805e | 6514 | } |
254da51f FC |
6515 | } |
6516 | ||
4c5bab50 FC |
6517 | PP(pp_lvref) |
6518 | { | |
26a50d99 FC |
6519 | dSP; |
6520 | SV * const ret = sv_2mortal(newSV_type(SVt_PVMG)); | |
6102323a | 6521 | SV * const elem = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
2a57afb1 | 6522 | SV * const arg = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
9782ce69 FC |
6523 | MAGIC * const mg = sv_magicext(ret, arg, PERL_MAGIC_lvref, |
6524 | &PL_vtbl_lvref, (char *)elem, | |
23270f96 | 6525 | elem ? HEf_SVKEY : (I32)ARGTARG); |
9782ce69 | 6526 | mg->mg_private = PL_op->op_private; |
d39c26a6 FC |
6527 | if (PL_op->op_private & OPpLVREF_ITER) |
6528 | mg->mg_flags |= MGf_PERSIST; | |
9846cd95 | 6529 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
40d2b828 | 6530 | if (elem) { |
38bb0011 JH |
6531 | MAGIC *mg; |
6532 | HV *stash; | |
6533 | assert(arg); | |
6534 | { | |
6535 | const bool can_preserve = SvCANEXISTDELETE(arg); | |
6536 | if (SvTYPE(arg) == SVt_PVAV) | |
6537 | S_localise_aelem_lval(aTHX_ (AV *)arg, elem, can_preserve); | |
6538 | else | |
6539 | S_localise_helem_lval(aTHX_ (HV *)arg, elem, can_preserve); | |
6540 | } | |
40d2b828 FC |
6541 | } |
6542 | else if (arg) { | |
9782ce69 FC |
6543 | S_localise_gv_slot(aTHX_ (GV *)arg, |
6544 | PL_op->op_private & OPpLVREF_TYPE); | |
2a57afb1 | 6545 | } |
3ad7d304 | 6546 | else if (!(PL_op->op_private & OPpPAD_STATE)) |
c146a62a | 6547 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
1199b01a | 6548 | } |
c146a62a FC |
6549 | XPUSHs(ret); |
6550 | RETURN; | |
4c5bab50 | 6551 | } |
84ed0108 | 6552 | |
16b99412 FC |
6553 | PP(pp_lvrefslice) |
6554 | { | |
a95dad8a | 6555 | dSP; dMARK; |
0ca7b7f7 FC |
6556 | AV * const av = (AV *)POPs; |
6557 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
6558 | bool can_preserve = FALSE; | |
6559 | ||
9846cd95 | 6560 | if (UNLIKELY(localizing)) { |
0ca7b7f7 FC |
6561 | MAGIC *mg; |
6562 | HV *stash; | |
6563 | SV **svp; | |
6564 | ||
6565 | can_preserve = SvCANEXISTDELETE(av); | |
6566 | ||
6567 | if (SvTYPE(av) == SVt_PVAV) { | |
6568 | SSize_t max = -1; | |
6569 | ||
6570 | for (svp = MARK + 1; svp <= SP; svp++) { | |
6571 | const SSize_t elem = SvIV(*svp); | |
6572 | if (elem > max) | |
6573 | max = elem; | |
6574 | } | |
6575 | if (max > AvMAX(av)) | |
6576 | av_extend(av, max); | |
6577 | } | |
6578 | } | |
6579 | ||
6580 | while (++MARK <= SP) { | |
6581 | SV * const elemsv = *MARK; | |
5f94141d | 6582 | if (SvTYPE(av) == SVt_PVAV) |
2331e434 | 6583 | S_localise_aelem_lval(aTHX_ av, elemsv, can_preserve); |
5f94141d FC |
6584 | else |
6585 | S_localise_helem_lval(aTHX_ (HV *)av, elemsv, can_preserve); | |
0ca7b7f7 FC |
6586 | *MARK = sv_2mortal(newSV_type(SVt_PVMG)); |
6587 | sv_magic(*MARK,(SV *)av,PERL_MAGIC_lvref,(char *)elemsv,HEf_SVKEY); | |
6588 | } | |
6589 | RETURN; | |
16b99412 FC |
6590 | } |
6591 | ||
2882b3ff FC |
6592 | PP(pp_lvavref) |
6593 | { | |
bdaf10a5 FC |
6594 | if (PL_op->op_flags & OPf_STACKED) |
6595 | Perl_pp_rv2av(aTHX); | |
6596 | else | |
6597 | Perl_pp_padav(aTHX); | |
6598 | { | |
6599 | dSP; | |
6600 | dTOPss; | |
6601 | SETs(0); /* special alias marker that aassign recognises */ | |
6602 | XPUSHs(sv); | |
6603 | RETURN; | |
6604 | } | |
2882b3ff FC |
6605 | } |
6606 | ||
b77472f9 FC |
6607 | PP(pp_anonconst) |
6608 | { | |
6609 | dSP; | |
6610 | dTOPss; | |
6611 | SETs(sv_2mortal((SV *)newCONSTSUB(SvTYPE(CopSTASH(PL_curcop))==SVt_PVHV | |
6612 | ? CopSTASH(PL_curcop) | |
6613 | : NULL, | |
6614 | NULL, SvREFCNT_inc_simple_NN(sv)))); | |
6615 | RETURN; | |
6616 | } | |
6617 | ||
4fa06845 DM |
6618 | |
6619 | /* process one subroutine argument - typically when the sub has a signature: | |
6620 | * introduce PL_curpad[op_targ] and assign to it the value | |
6621 | * for $: (OPf_STACKED ? *sp : $_[N]) | |
6622 | * for @/%: @_[N..$#_] | |
6623 | * | |
6624 | * It's equivalent to | |
6625 | * my $foo = $_[N]; | |
6626 | * or | |
6627 | * my $foo = (value-on-stack) | |
6628 | * or | |
6629 | * my @foo = @_[N..$#_] | |
6630 | * etc | |
4fa06845 DM |
6631 | */ |
6632 | ||
6633 | PP(pp_argelem) | |
6634 | { | |
6635 | dTARG; | |
6636 | SV *val; | |
6637 | SV ** padentry; | |
6638 | OP *o = PL_op; | |
6639 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6640 | IV ix = PTR2IV(cUNOP_AUXo->op_aux); |
4fa06845 | 6641 | IV argc; |
4fa06845 DM |
6642 | |
6643 | /* do 'my $var, @var or %var' action */ | |
6644 | padentry = &(PAD_SVl(o->op_targ)); | |
6645 | save_clearsv(padentry); | |
6646 | targ = *padentry; | |
6647 | ||
6648 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_SV) { | |
6649 | if (o->op_flags & OPf_STACKED) { | |
6650 | dSP; | |
6651 | val = POPs; | |
6652 | PUTBACK; | |
6653 | } | |
6654 | else { | |
f6ca42c7 | 6655 | SV **svp; |
4fa06845 | 6656 | /* should already have been checked */ |
f6ca42c7 | 6657 | assert(ix >= 0); |
6daeaaa3 DM |
6658 | #if IVSIZE > PTRSIZE |
6659 | assert(ix <= SSize_t_MAX); | |
6660 | #endif | |
f6ca42c7 DM |
6661 | |
6662 | svp = av_fetch(defav, ix, FALSE); | |
6663 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 DM |
6664 | } |
6665 | ||
6666 | /* $var = $val */ | |
6667 | ||
6668 | /* cargo-culted from pp_sassign */ | |
6669 | assert(TAINTING_get || !TAINT_get); | |
6670 | if (UNLIKELY(TAINT_get) && !SvTAINTED(val)) | |
6671 | TAINT_NOT; | |
6672 | ||
f6ca42c7 | 6673 | SvSetMagicSV(targ, val); |
4fa06845 DM |
6674 | return o->op_next; |
6675 | } | |
6676 | ||
6677 | /* must be AV or HV */ | |
6678 | ||
6679 | assert(!(o->op_flags & OPf_STACKED)); | |
f6ca42c7 | 6680 | argc = ((IV)AvFILL(defav) + 1) - ix; |
4fa06845 DM |
6681 | |
6682 | /* This is a copy of the relevant parts of pp_aassign(). | |
4fa06845 DM |
6683 | */ |
6684 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_AV) { | |
f6ca42c7 DM |
6685 | IV i; |
6686 | ||
6687 | if (AvFILL((AV*)targ) > -1) { | |
6688 | /* target should usually be empty. If we get get | |
6689 | * here, someone's been doing some weird closure tricks. | |
6690 | * Make a copy of all args before clearing the array, | |
6691 | * to avoid the equivalent of @a = ($a[0]) prematurely freeing | |
6692 | * elements. See similar code in pp_aassign. | |
6693 | */ | |
6694 | for (i = 0; i < argc; i++) { | |
6695 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6696 | SV *newsv = newSV(0); | |
6697 | sv_setsv_flags(newsv, | |
6698 | svp ? *svp : &PL_sv_undef, | |
6699 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6700 | if (!av_store(defav, ix + i, newsv)) | |
6701 | SvREFCNT_dec_NN(newsv); | |
6702 | } | |
6703 | av_clear((AV*)targ); | |
6704 | } | |
6705 | ||
6706 | if (argc <= 0) | |
6707 | return o->op_next; | |
4fa06845 | 6708 | |
4fa06845 DM |
6709 | av_extend((AV*)targ, argc); |
6710 | ||
f6ca42c7 | 6711 | i = 0; |
4fa06845 DM |
6712 | while (argc--) { |
6713 | SV *tmpsv; | |
f6ca42c7 DM |
6714 | SV **svp = av_fetch(defav, ix + i, FALSE); |
6715 | SV *val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 6716 | tmpsv = newSV(0); |
f6ca42c7 | 6717 | sv_setsv(tmpsv, val); |
4fa06845 DM |
6718 | av_store((AV*)targ, i++, tmpsv); |
6719 | TAINT_NOT; | |
6720 | } | |
6721 | ||
6722 | } | |
6723 | else { | |
f6ca42c7 DM |
6724 | IV i; |
6725 | ||
4fa06845 DM |
6726 | assert((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_HV); |
6727 | ||
f6ca42c7 DM |
6728 | if (SvRMAGICAL(targ) || HvUSEDKEYS((HV*)targ)) { |
6729 | /* see "target should usually be empty" comment above */ | |
6730 | for (i = 0; i < argc; i++) { | |
6731 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6732 | SV *newsv = newSV(0); | |
6733 | sv_setsv_flags(newsv, | |
6734 | svp ? *svp : &PL_sv_undef, | |
6735 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6736 | if (!av_store(defav, ix + i, newsv)) | |
6737 | SvREFCNT_dec_NN(newsv); | |
6738 | } | |
6739 | hv_clear((HV*)targ); | |
6740 | } | |
6741 | ||
6742 | if (argc <= 0) | |
6743 | return o->op_next; | |
4fa06845 | 6744 | assert(argc % 2 == 0); |
4fa06845 | 6745 | |
f6ca42c7 | 6746 | i = 0; |
4fa06845 DM |
6747 | while (argc) { |
6748 | SV *tmpsv; | |
f6ca42c7 DM |
6749 | SV **svp; |
6750 | SV *key; | |
6751 | SV *val; | |
6752 | ||
6753 | svp = av_fetch(defav, ix + i++, FALSE); | |
6754 | key = svp ? *svp : &PL_sv_undef; | |
6755 | svp = av_fetch(defav, ix + i++, FALSE); | |
6756 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 6757 | |
4fa06845 DM |
6758 | argc -= 2; |
6759 | if (UNLIKELY(SvGMAGICAL(key))) | |
6760 | key = sv_mortalcopy(key); | |
6761 | tmpsv = newSV(0); | |
6762 | sv_setsv(tmpsv, val); | |
6763 | hv_store_ent((HV*)targ, key, tmpsv, 0); | |
6764 | TAINT_NOT; | |
6765 | } | |
6766 | } | |
6767 | ||
6768 | return o->op_next; | |
6769 | } | |
6770 | ||
6771 | /* Handle a default value for one subroutine argument (typically as part | |
6772 | * of a subroutine signature). | |
6773 | * It's equivalent to | |
6774 | * @_ > op_targ ? $_[op_targ] : result_of(op_other) | |
6775 | * | |
6776 | * Intended to be used where op_next is an OP_ARGELEM | |
6777 | * | |
6778 | * We abuse the op_targ field slightly: it's an index into @_ rather than | |
6779 | * into PL_curpad. | |
6780 | */ | |
6781 | ||
6782 | PP(pp_argdefelem) | |
6783 | { | |
6784 | OP * const o = PL_op; | |
6785 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6786 | IV ix = (IV)o->op_targ; |
4fa06845 | 6787 | |
f6ca42c7 | 6788 | assert(ix >= 0); |
6daeaaa3 DM |
6789 | #if IVSIZE > PTRSIZE |
6790 | assert(ix <= SSize_t_MAX); | |
6791 | #endif | |
f6ca42c7 DM |
6792 | |
6793 | if (AvFILL(defav) >= ix) { | |
4fa06845 | 6794 | dSP; |
f6ca42c7 DM |
6795 | SV **svp = av_fetch(defav, ix, FALSE); |
6796 | SV *val = svp ? *svp : &PL_sv_undef; | |
6797 | XPUSHs(val); | |
4fa06845 DM |
6798 | RETURN; |
6799 | } | |
6800 | return cLOGOPo->op_other; | |
6801 | } | |
6802 | ||
6803 | ||
6804 | ||
6805 | /* Check a a subs arguments - i.e. that it has the correct number of args | |
6806 | * (and anything else we might think of in future). Typically used with | |
6807 | * signatured subs. | |
6808 | */ | |
6809 | ||
6810 | PP(pp_argcheck) | |
6811 | { | |
6812 | OP * const o = PL_op; | |
6813 | UNOP_AUX_item *aux = cUNOP_AUXo->op_aux; | |
6daeaaa3 DM |
6814 | IV params = aux[0].iv; |
6815 | IV opt_params = aux[1].iv; | |
4fa06845 DM |
6816 | char slurpy = (char)(aux[2].iv); |
6817 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6818 | IV argc; |
4fa06845 DM |
6819 | bool too_few; |
6820 | ||
6821 | assert(!SvMAGICAL(defav)); | |
6daeaaa3 | 6822 | argc = (AvFILLp(defav) + 1); |
4fa06845 DM |
6823 | too_few = (argc < (params - opt_params)); |
6824 | ||
6825 | if (UNLIKELY(too_few || (!slurpy && argc > params))) | |
bb6b75cd DM |
6826 | /* diag_listed_as: Too few arguments for subroutine */ |
6827 | /* diag_listed_as: Too many arguments for subroutine */ | |
4fa06845 DM |
6828 | Perl_croak_caller("Too %s arguments for subroutine", |
6829 | too_few ? "few" : "many"); | |
6830 | ||
6831 | if (UNLIKELY(slurpy == '%' && argc > params && (argc - params) % 2)) | |
6832 | Perl_croak_caller("Odd name/value argument for subroutine"); | |
6833 | ||
6834 | ||
6835 | return NORMAL; | |
6836 | } | |
6837 | ||
e609e586 | 6838 | /* |
14d04a33 | 6839 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 6840 | */ |