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; |
13017935 | 69 | I32 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); |
533c011a | 75 | if (PL_op->op_flags & OPf_REF) { |
85e6fe83 | 76 | PUSHs(TARG); |
93a17b20 | 77 | RETURN; |
40c94d11 FC |
78 | } else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
79 | const I32 flags = is_lvalue_sub(); | |
80 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
82334630 | 81 | if (GIMME_V == G_SCALAR) |
a84828f3 | 82 | /* diag_listed_as: Can't return %s to lvalue scalar context */ |
78f9721b SM |
83 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); |
84 | PUSHs(TARG); | |
85 | RETURN; | |
40c94d11 | 86 | } |
85e6fe83 | 87 | } |
13017935 SM |
88 | gimme = GIMME_V; |
89 | if (gimme == G_ARRAY) { | |
d5524600 | 90 | /* XXX see also S_pushav in pp_hot.c */ |
052a7c76 | 91 | const SSize_t maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 | 92 | EXTEND(SP, maxarg); |
93965878 | 93 | if (SvMAGICAL(TARG)) { |
052a7c76 | 94 | SSize_t i; |
c70927a6 | 95 | for (i=0; i < maxarg; i++) { |
502c6561 | 96 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
3280af22 | 97 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
98 | } |
99 | } | |
100 | else { | |
052a7c76 DM |
101 | SSize_t i; |
102 | for (i=0; i < maxarg; i++) { | |
428ccf1e FC |
103 | SV * const sv = AvARRAY((const AV *)TARG)[i]; |
104 | SP[i+1] = sv ? sv : &PL_sv_undef; | |
105 | } | |
93965878 | 106 | } |
85e6fe83 LW |
107 | SP += maxarg; |
108 | } | |
13017935 | 109 | else if (gimme == G_SCALAR) { |
1b6737cc | 110 | SV* const sv = sv_newmortal(); |
c70927a6 | 111 | const SSize_t maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 LW |
112 | sv_setiv(sv, maxarg); |
113 | PUSHs(sv); | |
114 | } | |
115 | RETURN; | |
93a17b20 LW |
116 | } |
117 | ||
118 | PP(pp_padhv) | |
119 | { | |
20b7effb | 120 | dSP; dTARGET; |
54310121 | 121 | I32 gimme; |
122 | ||
e190e9b4 | 123 | assert(SvTYPE(TARG) == SVt_PVHV); |
93a17b20 | 124 | XPUSHs(TARG); |
3dbcc5e0 S |
125 | if (UNLIKELY( PL_op->op_private & OPpLVAL_INTRO )) |
126 | if (LIKELY( !(PL_op->op_private & OPpPAD_STATE) )) | |
a5911867 | 127 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
533c011a | 128 | if (PL_op->op_flags & OPf_REF) |
93a17b20 | 129 | RETURN; |
40c94d11 FC |
130 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
131 | const I32 flags = is_lvalue_sub(); | |
132 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
82334630 | 133 | if (GIMME_V == G_SCALAR) |
a84828f3 | 134 | /* diag_listed_as: Can't return %s to lvalue scalar context */ |
78f9721b SM |
135 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); |
136 | RETURN; | |
40c94d11 | 137 | } |
78f9721b | 138 | } |
54310121 | 139 | gimme = GIMME_V; |
140 | if (gimme == G_ARRAY) { | |
981b7185 | 141 | RETURNOP(Perl_do_kv(aTHX)); |
85e6fe83 | 142 | } |
c8fe3bdf | 143 | else if ((PL_op->op_private & OPpTRUEBOOL |
adc42c31 | 144 | || ( PL_op->op_private & OPpMAYBE_TRUEBOOL |
c8fe3bdf FC |
145 | && block_gimme() == G_VOID )) |
146 | && (!SvRMAGICAL(TARG) || !mg_find(TARG, PERL_MAGIC_tied))) | |
147 | SETs(HvUSEDKEYS(TARG) ? &PL_sv_yes : sv_2mortal(newSViv(0))); | |
54310121 | 148 | else if (gimme == G_SCALAR) { |
85fbaab2 | 149 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
85e6fe83 | 150 | SETs(sv); |
85e6fe83 | 151 | } |
54310121 | 152 | RETURN; |
93a17b20 LW |
153 | } |
154 | ||
ac217057 FC |
155 | PP(pp_padcv) |
156 | { | |
20b7effb | 157 | dSP; dTARGET; |
97b03d64 FC |
158 | assert(SvTYPE(TARG) == SVt_PVCV); |
159 | XPUSHs(TARG); | |
160 | RETURN; | |
ac217057 FC |
161 | } |
162 | ||
ecf9c8b7 FC |
163 | PP(pp_introcv) |
164 | { | |
20b7effb | 165 | dTARGET; |
6d5c2147 FC |
166 | SvPADSTALE_off(TARG); |
167 | return NORMAL; | |
ecf9c8b7 FC |
168 | } |
169 | ||
13f89586 FC |
170 | PP(pp_clonecv) |
171 | { | |
20b7effb | 172 | dTARGET; |
0f94cb1f FC |
173 | CV * const protocv = PadnamePROTOCV( |
174 | PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG] | |
175 | ); | |
6d5c2147 | 176 | assert(SvTYPE(TARG) == SVt_PVCV); |
0f94cb1f FC |
177 | assert(protocv); |
178 | if (CvISXSUB(protocv)) { /* constant */ | |
6d5c2147 | 179 | /* XXX Should we clone it here? */ |
6d5c2147 FC |
180 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
181 | to introcv and remove the SvPADSTALE_off. */ | |
182 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
0f94cb1f | 183 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(protocv); |
6d5c2147 FC |
184 | } |
185 | else { | |
0f94cb1f FC |
186 | if (CvROOT(protocv)) { |
187 | assert(CvCLONE(protocv)); | |
188 | assert(!CvCLONED(protocv)); | |
6d5c2147 | 189 | } |
0f94cb1f | 190 | cv_clone_into(protocv,(CV *)TARG); |
6d5c2147 FC |
191 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
192 | } | |
193 | return NORMAL; | |
13f89586 FC |
194 | } |
195 | ||
79072805 LW |
196 | /* Translations. */ |
197 | ||
6f7909da FC |
198 | /* In some cases this function inspects PL_op. If this function is called |
199 | for new op types, more bool parameters may need to be added in place of | |
200 | the checks. | |
201 | ||
202 | When noinit is true, the absence of a gv will cause a retval of undef. | |
203 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
204 | */ |
205 | ||
206 | static SV * | |
207 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
208 | const bool noinit) | |
209 | { | |
f64c9ac5 | 210 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 211 | if (SvROK(sv)) { |
93d7320b DM |
212 | if (SvAMAGIC(sv)) { |
213 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 214 | } |
e4a1664f | 215 | wasref: |
ed6116ce | 216 | sv = SvRV(sv); |
b1dadf13 | 217 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 218 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 219 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 220 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 221 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 222 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 223 | } |
81d52ecd JH |
224 | else if (!isGV_with_GP(sv)) { |
225 | Perl_die(aTHX_ "Not a GLOB reference"); | |
226 | } | |
79072805 LW |
227 | } |
228 | else { | |
6e592b3a | 229 | if (!isGV_with_GP(sv)) { |
f132ae69 | 230 | if (!SvOK(sv)) { |
b13b2135 | 231 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 232 | * NI-S 1999/05/07 |
b13b2135 | 233 | */ |
f132ae69 | 234 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 235 | GV *gv; |
ce74145d | 236 | if (SvREADONLY(sv)) |
cb077ed2 | 237 | Perl_croak_no_modify(); |
2c8ac474 | 238 | if (cUNOP->op_targ) { |
0bd48802 | 239 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f FC |
240 | HV *stash = CopSTASH(PL_curcop); |
241 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
159b6efe | 242 | gv = MUTABLE_GV(newSV(0)); |
94e7eb6f | 243 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
244 | } |
245 | else { | |
0bd48802 | 246 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b | 247 | gv = newGVgen_flags(name, |
d14578b8 | 248 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); |
7bdb4ff0 | 249 | SvREFCNT_inc_simple_void_NN(gv); |
1d8d4d2a | 250 | } |
43230e26 | 251 | prepare_SV_for_RV(sv); |
ad64d0ec | 252 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 253 | SvROK_on(sv); |
1d8d4d2a | 254 | SvSETMAGIC(sv); |
853846ea | 255 | goto wasref; |
2c8ac474 | 256 | } |
81d52ecd JH |
257 | if (PL_op->op_flags & OPf_REF || strict) { |
258 | Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
259 | } | |
599cee73 | 260 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 261 | report_uninit(sv); |
6f7909da | 262 | return &PL_sv_undef; |
a0d0e21e | 263 | } |
6f7909da | 264 | if (noinit) |
35cd451c | 265 | { |
77cb3b01 FC |
266 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
267 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 268 | )))) |
6f7909da | 269 | return &PL_sv_undef; |
35cd451c GS |
270 | } |
271 | else { | |
81d52ecd JH |
272 | if (strict) { |
273 | Perl_die(aTHX_ | |
fedf30e1 | 274 | PL_no_symref_sv, |
81d52ecd JH |
275 | sv, |
276 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), | |
277 | "a symbol" | |
278 | ); | |
279 | } | |
e26df76a NC |
280 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
281 | == OPpDONT_INIT_GV) { | |
282 | /* We are the target of a coderef assignment. Return | |
283 | the scalar unchanged, and let pp_sasssign deal with | |
284 | things. */ | |
6f7909da | 285 | return sv; |
e26df76a | 286 | } |
77cb3b01 | 287 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 288 | } |
2acc3314 | 289 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 290 | SvFAKE_off(sv); |
93a17b20 | 291 | } |
79072805 | 292 | } |
8dc99089 | 293 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 294 | SV *newsv = sv_newmortal(); |
5cf4b255 | 295 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 296 | SvFAKE_off(newsv); |
d8906c05 | 297 | sv = newsv; |
2acc3314 | 298 | } |
6f7909da FC |
299 | return sv; |
300 | } | |
301 | ||
302 | PP(pp_rv2gv) | |
303 | { | |
20b7effb | 304 | dSP; dTOPss; |
6f7909da FC |
305 | |
306 | sv = S_rv2gv(aTHX_ | |
307 | sv, PL_op->op_private & OPpDEREF, | |
308 | PL_op->op_private & HINT_STRICT_REFS, | |
309 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
310 | || PL_op->op_type == OP_READLINE | |
311 | ); | |
d8906c05 FC |
312 | if (PL_op->op_private & OPpLVAL_INTRO) |
313 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
314 | SETs(sv); | |
79072805 LW |
315 | RETURN; |
316 | } | |
317 | ||
dc3c76f8 NC |
318 | /* Helper function for pp_rv2sv and pp_rv2av */ |
319 | GV * | |
fe9845cc RB |
320 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
321 | const svtype type, SV ***spp) | |
dc3c76f8 | 322 | { |
dc3c76f8 NC |
323 | GV *gv; |
324 | ||
7918f24d NC |
325 | PERL_ARGS_ASSERT_SOFTREF2XV; |
326 | ||
dc3c76f8 NC |
327 | if (PL_op->op_private & HINT_STRICT_REFS) { |
328 | if (SvOK(sv)) | |
fedf30e1 | 329 | Perl_die(aTHX_ PL_no_symref_sv, sv, |
bf3d870f | 330 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
331 | else |
332 | Perl_die(aTHX_ PL_no_usym, what); | |
333 | } | |
334 | if (!SvOK(sv)) { | |
fd1d9b5c | 335 | if ( |
c8fe3bdf | 336 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 337 | ) |
dc3c76f8 NC |
338 | Perl_die(aTHX_ PL_no_usym, what); |
339 | if (ckWARN(WARN_UNINITIALIZED)) | |
340 | report_uninit(sv); | |
341 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
342 | (*spp)--; | |
343 | return NULL; | |
344 | } | |
345 | **spp = &PL_sv_undef; | |
346 | return NULL; | |
347 | } | |
348 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
349 | !(PL_op->op_flags & OPf_MOD)) | |
350 | { | |
77cb3b01 | 351 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
352 | { |
353 | **spp = &PL_sv_undef; | |
354 | return NULL; | |
355 | } | |
356 | } | |
357 | else { | |
77cb3b01 | 358 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
359 | } |
360 | return gv; | |
361 | } | |
362 | ||
79072805 LW |
363 | PP(pp_rv2sv) |
364 | { | |
20b7effb | 365 | dSP; dTOPss; |
c445ea15 | 366 | GV *gv = NULL; |
79072805 | 367 | |
9026059d | 368 | SvGETMAGIC(sv); |
ed6116ce | 369 | if (SvROK(sv)) { |
93d7320b DM |
370 | if (SvAMAGIC(sv)) { |
371 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 372 | } |
f5284f61 | 373 | |
ed6116ce | 374 | sv = SvRV(sv); |
69f00f67 | 375 | if (SvTYPE(sv) >= SVt_PVAV) |
cea2e8a9 | 376 | DIE(aTHX_ "Not a SCALAR reference"); |
79072805 LW |
377 | } |
378 | else { | |
159b6efe | 379 | gv = MUTABLE_GV(sv); |
748a9306 | 380 | |
6e592b3a | 381 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
382 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
383 | if (!gv) | |
384 | RETURN; | |
463ee0b2 | 385 | } |
29c711a3 | 386 | sv = GvSVn(gv); |
a0d0e21e | 387 | } |
533c011a | 388 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
389 | if (PL_op->op_private & OPpLVAL_INTRO) { |
390 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 391 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
392 | else if (gv) |
393 | sv = save_scalar(gv); | |
394 | else | |
f1f66076 | 395 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 396 | } |
533c011a | 397 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 398 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 399 | } |
a0d0e21e | 400 | SETs(sv); |
79072805 LW |
401 | RETURN; |
402 | } | |
403 | ||
404 | PP(pp_av2arylen) | |
405 | { | |
20b7effb | 406 | dSP; |
502c6561 | 407 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
408 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
409 | if (lvalue) { | |
8160c8f5 DM |
410 | SV ** const svp = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); |
411 | if (!*svp) { | |
412 | *svp = newSV_type(SVt_PVMG); | |
413 | sv_magic(*svp, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
02d85cc3 | 414 | } |
8160c8f5 | 415 | SETs(*svp); |
02d85cc3 | 416 | } else { |
e1dccc0d | 417 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 418 | } |
79072805 LW |
419 | RETURN; |
420 | } | |
421 | ||
a0d0e21e LW |
422 | PP(pp_pos) |
423 | { | |
27a8dde8 | 424 | dSP; dTOPss; |
8ec5e241 | 425 | |
78f9721b | 426 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 427 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
428 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
429 | LvTYPE(ret) = '.'; | |
430 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
27a8dde8 | 431 | SETs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
432 | } |
433 | else { | |
96c2a8ff | 434 | const MAGIC * const mg = mg_find_mglob(sv); |
6174b39a | 435 | if (mg && mg->mg_len != -1) { |
2154eca7 | 436 | dTARGET; |
6174b39a | 437 | STRLEN i = mg->mg_len; |
25fdce4a | 438 | if (mg->mg_flags & MGf_BYTES && DO_UTF8(sv)) |
6174b39a | 439 | i = sv_pos_b2u_flags(sv, i, SV_GMAGIC|SV_CONST_RETURN); |
27a8dde8 FC |
440 | SETu(i); |
441 | return NORMAL; | |
a0d0e21e | 442 | } |
27a8dde8 | 443 | SETs(&PL_sv_undef); |
a0d0e21e | 444 | } |
27a8dde8 | 445 | return NORMAL; |
a0d0e21e LW |
446 | } |
447 | ||
79072805 LW |
448 | PP(pp_rv2cv) |
449 | { | |
20b7effb | 450 | dSP; |
79072805 | 451 | GV *gv; |
1eced8f8 | 452 | HV *stash_unused; |
c445ea15 | 453 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 454 | ? GV_ADDMG |
d14578b8 KW |
455 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
456 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
457 | ? GV_ADD|GV_NOEXPAND |
458 | : GV_ADD; | |
4633a7c4 LW |
459 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
460 | /* (But not in defined().) */ | |
e26df76a | 461 | |
1eced8f8 | 462 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 463 | if (cv) NOOP; |
e26df76a | 464 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
2eaf799e FC |
465 | cv = SvTYPE(SvRV(gv)) == SVt_PVCV |
466 | ? MUTABLE_CV(SvRV(gv)) | |
467 | : MUTABLE_CV(gv); | |
e26df76a | 468 | } |
07055b4c | 469 | else |
ea726b52 | 470 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 471 | SETs(MUTABLE_SV(cv)); |
3d79e3ee | 472 | return NORMAL; |
79072805 LW |
473 | } |
474 | ||
c07a80fd | 475 | PP(pp_prototype) |
476 | { | |
20b7effb | 477 | dSP; |
c07a80fd | 478 | CV *cv; |
479 | HV *stash; | |
480 | GV *gv; | |
fabdb6c0 | 481 | SV *ret = &PL_sv_undef; |
c07a80fd | 482 | |
6954f42f | 483 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 484 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 485 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 486 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 487 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
a96df643 | 488 | if (!code) |
b17a0679 FC |
489 | DIE(aTHX_ "Can't find an opnumber for \"%"UTF8f"\"", |
490 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); | |
4e338c21 | 491 | { |
b66130dd FC |
492 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
493 | if (sv) ret = sv; | |
494 | } | |
b8c38f0a | 495 | goto set; |
b6c543e3 IZ |
496 | } |
497 | } | |
f2c0649b | 498 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 499 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
500 | ret = newSVpvn_flags( |
501 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
502 | ); | |
b6c543e3 | 503 | set: |
c07a80fd | 504 | SETs(ret); |
505 | RETURN; | |
506 | } | |
507 | ||
a0d0e21e LW |
508 | PP(pp_anoncode) |
509 | { | |
20b7effb | 510 | dSP; |
ea726b52 | 511 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 512 | if (CvCLONE(cv)) |
ad64d0ec | 513 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 514 | EXTEND(SP,1); |
ad64d0ec | 515 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
516 | RETURN; |
517 | } | |
518 | ||
519 | PP(pp_srefgen) | |
79072805 | 520 | { |
20b7effb | 521 | dSP; |
71be2cbc | 522 | *SP = refto(*SP); |
3ed34c76 | 523 | return NORMAL; |
8ec5e241 | 524 | } |
a0d0e21e LW |
525 | |
526 | PP(pp_refgen) | |
527 | { | |
20b7effb | 528 | dSP; dMARK; |
82334630 | 529 | if (GIMME_V != G_ARRAY) { |
5f0b1d4e GS |
530 | if (++MARK <= SP) |
531 | *MARK = *SP; | |
532 | else | |
1d51ab6c FC |
533 | { |
534 | MEXTEND(SP, 1); | |
3280af22 | 535 | *MARK = &PL_sv_undef; |
1d51ab6c | 536 | } |
5f0b1d4e GS |
537 | *MARK = refto(*MARK); |
538 | SP = MARK; | |
539 | RETURN; | |
a0d0e21e | 540 | } |
bbce6d69 | 541 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 542 | while (++MARK <= SP) |
543 | *MARK = refto(*MARK); | |
a0d0e21e | 544 | RETURN; |
79072805 LW |
545 | } |
546 | ||
76e3520e | 547 | STATIC SV* |
cea2e8a9 | 548 | S_refto(pTHX_ SV *sv) |
71be2cbc | 549 | { |
550 | SV* rv; | |
551 | ||
7918f24d NC |
552 | PERL_ARGS_ASSERT_REFTO; |
553 | ||
71be2cbc | 554 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
555 | if (LvTARGLEN(sv)) | |
68dc0745 | 556 | vivify_defelem(sv); |
557 | if (!(sv = LvTARG(sv))) | |
3280af22 | 558 | sv = &PL_sv_undef; |
0dd88869 | 559 | else |
b37c2d43 | 560 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 561 | } |
d8b46c1b | 562 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
563 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
564 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 565 | SvTEMP_off(sv); |
b37c2d43 | 566 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 567 | } |
60779a30 | 568 | else if (SvPADTMP(sv)) { |
f2933f5f | 569 | sv = newSVsv(sv); |
60779a30 | 570 | } |
71be2cbc | 571 | else { |
572 | SvTEMP_off(sv); | |
b37c2d43 | 573 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 574 | } |
575 | rv = sv_newmortal(); | |
4df7f6af | 576 | sv_upgrade(rv, SVt_IV); |
b162af07 | 577 | SvRV_set(rv, sv); |
71be2cbc | 578 | SvROK_on(rv); |
579 | return rv; | |
580 | } | |
581 | ||
79072805 LW |
582 | PP(pp_ref) |
583 | { | |
3c1e67ac DD |
584 | dSP; |
585 | SV * const sv = TOPs; | |
f12c7020 | 586 | |
511ddbdf FC |
587 | SvGETMAGIC(sv); |
588 | if (!SvROK(sv)) | |
3c1e67ac DD |
589 | SETs(&PL_sv_no); |
590 | else { | |
591 | dTARGET; | |
592 | SETs(TARG); | |
593 | /* use the return value that is in a register, its the same as TARG */ | |
594 | TARG = sv_ref(TARG,SvRV(sv),TRUE); | |
595 | SvSETMAGIC(TARG); | |
596 | } | |
79072805 | 597 | |
3c1e67ac | 598 | return NORMAL; |
79072805 LW |
599 | } |
600 | ||
601 | PP(pp_bless) | |
602 | { | |
20b7effb | 603 | dSP; |
463ee0b2 | 604 | HV *stash; |
79072805 | 605 | |
463ee0b2 | 606 | if (MAXARG == 1) |
dcdfe746 | 607 | { |
c2f922f1 | 608 | curstash: |
11faa288 | 609 | stash = CopSTASH(PL_curcop); |
dcdfe746 FC |
610 | if (SvTYPE(stash) != SVt_PVHV) |
611 | Perl_croak(aTHX_ "Attempt to bless into a freed package"); | |
612 | } | |
7b8d334a | 613 | else { |
1b6737cc | 614 | SV * const ssv = POPs; |
7b8d334a | 615 | STRLEN len; |
e1ec3a88 | 616 | const char *ptr; |
81689caa | 617 | |
c2f922f1 | 618 | if (!ssv) goto curstash; |
8d9dd4b9 | 619 | SvGETMAGIC(ssv); |
c7ea825d FC |
620 | if (SvROK(ssv)) { |
621 | if (!SvAMAGIC(ssv)) { | |
622 | frog: | |
81689caa | 623 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
c7ea825d FC |
624 | } |
625 | /* SvAMAGIC is on here, but it only means potentially overloaded, | |
626 | so after stringification: */ | |
627 | ptr = SvPV_nomg_const(ssv,len); | |
628 | /* We need to check the flag again: */ | |
629 | if (!SvAMAGIC(ssv)) goto frog; | |
630 | } | |
631 | else ptr = SvPV_nomg_const(ssv,len); | |
a2a5de95 NC |
632 | if (len == 0) |
633 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
634 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 635 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 636 | } |
a0d0e21e | 637 | |
5d3fdfeb | 638 | (void)sv_bless(TOPs, stash); |
79072805 LW |
639 | RETURN; |
640 | } | |
641 | ||
fb73857a | 642 | PP(pp_gelem) |
643 | { | |
20b7effb | 644 | dSP; |
b13b2135 | 645 | |
1b6737cc | 646 | SV *sv = POPs; |
a180b31a BF |
647 | STRLEN len; |
648 | const char * const elem = SvPV_const(sv, len); | |
5695161e | 649 | GV * const gv = MUTABLE_GV(TOPs); |
c445ea15 | 650 | SV * tmpRef = NULL; |
1b6737cc | 651 | |
c445ea15 | 652 | sv = NULL; |
c4ba80c3 NC |
653 | if (elem) { |
654 | /* elem will always be NUL terminated. */ | |
1b6737cc | 655 | const char * const second_letter = elem + 1; |
c4ba80c3 NC |
656 | switch (*elem) { |
657 | case 'A': | |
a180b31a | 658 | if (len == 5 && strEQ(second_letter, "RRAY")) |
e14698d8 | 659 | { |
ad64d0ec | 660 | tmpRef = MUTABLE_SV(GvAV(gv)); |
e14698d8 FC |
661 | if (tmpRef && !AvREAL((const AV *)tmpRef) |
662 | && AvREIFY((const AV *)tmpRef)) | |
663 | av_reify(MUTABLE_AV(tmpRef)); | |
664 | } | |
c4ba80c3 NC |
665 | break; |
666 | case 'C': | |
a180b31a | 667 | if (len == 4 && strEQ(second_letter, "ODE")) |
ad64d0ec | 668 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
669 | break; |
670 | case 'F': | |
a180b31a | 671 | if (len == 10 && strEQ(second_letter, "ILEHANDLE")) { |
c4ba80c3 NC |
672 | /* finally deprecated in 5.8.0 */ |
673 | deprecate("*glob{FILEHANDLE}"); | |
ad64d0ec | 674 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
675 | } |
676 | else | |
a180b31a | 677 | if (len == 6 && strEQ(second_letter, "ORMAT")) |
ad64d0ec | 678 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
679 | break; |
680 | case 'G': | |
a180b31a | 681 | if (len == 4 && strEQ(second_letter, "LOB")) |
ad64d0ec | 682 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
683 | break; |
684 | case 'H': | |
a180b31a | 685 | if (len == 4 && strEQ(second_letter, "ASH")) |
ad64d0ec | 686 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
687 | break; |
688 | case 'I': | |
a180b31a | 689 | if (*second_letter == 'O' && !elem[2] && len == 2) |
ad64d0ec | 690 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
691 | break; |
692 | case 'N': | |
a180b31a | 693 | if (len == 4 && strEQ(second_letter, "AME")) |
a663657d | 694 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
695 | break; |
696 | case 'P': | |
a180b31a | 697 | if (len == 7 && strEQ(second_letter, "ACKAGE")) { |
7fa3a4ab NC |
698 | const HV * const stash = GvSTASH(gv); |
699 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 700 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
701 | } |
702 | break; | |
703 | case 'S': | |
a180b31a | 704 | if (len == 6 && strEQ(second_letter, "CALAR")) |
f9d52e31 | 705 | tmpRef = GvSVn(gv); |
c4ba80c3 | 706 | break; |
39b99f21 | 707 | } |
fb73857a | 708 | } |
76e3520e GS |
709 | if (tmpRef) |
710 | sv = newRV(tmpRef); | |
fb73857a | 711 | if (sv) |
712 | sv_2mortal(sv); | |
713 | else | |
3280af22 | 714 | sv = &PL_sv_undef; |
5695161e | 715 | SETs(sv); |
fb73857a | 716 | RETURN; |
717 | } | |
718 | ||
a0d0e21e | 719 | /* Pattern matching */ |
79072805 | 720 | |
a0d0e21e | 721 | PP(pp_study) |
79072805 | 722 | { |
add3e777 | 723 | dSP; dTOPss; |
a0d0e21e LW |
724 | STRLEN len; |
725 | ||
1fa930f2 | 726 | (void)SvPV(sv, len); |
bc9a5256 | 727 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
32f0ea87 | 728 | /* Historically, study was skipped in these cases. */ |
add3e777 FC |
729 | SETs(&PL_sv_no); |
730 | return NORMAL; | |
a4f4e906 NC |
731 | } |
732 | ||
a58a85fa | 733 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 734 | complicates matters elsewhere. */ |
add3e777 FC |
735 | SETs(&PL_sv_yes); |
736 | return NORMAL; | |
79072805 LW |
737 | } |
738 | ||
b1c05ba5 DM |
739 | |
740 | /* also used for: pp_transr() */ | |
741 | ||
a0d0e21e | 742 | PP(pp_trans) |
79072805 | 743 | { |
6442877a | 744 | dSP; |
a0d0e21e LW |
745 | SV *sv; |
746 | ||
533c011a | 747 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 748 | sv = POPs; |
79072805 | 749 | else { |
a0d0e21e | 750 | EXTEND(SP,1); |
f605e527 | 751 | if (ARGTARG) |
6442877a | 752 | sv = PAD_SV(ARGTARG); |
f605e527 FC |
753 | else { |
754 | sv = DEFSV; | |
755 | } | |
79072805 | 756 | } |
bb16bae8 | 757 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
758 | STRLEN len; |
759 | const char * const pv = SvPV(sv,len); | |
760 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 761 | do_trans(newsv); |
290797f7 | 762 | PUSHs(newsv); |
bb16bae8 | 763 | } |
5bbe7184 | 764 | else { |
6442877a | 765 | mPUSHi(do_trans(sv)); |
5bbe7184 | 766 | } |
a0d0e21e | 767 | RETURN; |
79072805 LW |
768 | } |
769 | ||
a0d0e21e | 770 | /* Lvalue operators. */ |
79072805 | 771 | |
f595e19f | 772 | static size_t |
81745e4e NC |
773 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) |
774 | { | |
81745e4e NC |
775 | STRLEN len; |
776 | char *s; | |
f595e19f | 777 | size_t count = 0; |
81745e4e NC |
778 | |
779 | PERL_ARGS_ASSERT_DO_CHOMP; | |
780 | ||
781 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
f595e19f | 782 | return 0; |
81745e4e NC |
783 | if (SvTYPE(sv) == SVt_PVAV) { |
784 | I32 i; | |
785 | AV *const av = MUTABLE_AV(sv); | |
786 | const I32 max = AvFILL(av); | |
787 | ||
788 | for (i = 0; i <= max; i++) { | |
789 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
790 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
f595e19f | 791 | count += do_chomp(retval, sv, chomping); |
81745e4e | 792 | } |
f595e19f | 793 | return count; |
81745e4e NC |
794 | } |
795 | else if (SvTYPE(sv) == SVt_PVHV) { | |
796 | HV* const hv = MUTABLE_HV(sv); | |
797 | HE* entry; | |
798 | (void)hv_iterinit(hv); | |
799 | while ((entry = hv_iternext(hv))) | |
f595e19f FC |
800 | count += do_chomp(retval, hv_iterval(hv,entry), chomping); |
801 | return count; | |
81745e4e NC |
802 | } |
803 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 804 | Perl_croak_no_modify(); |
81745e4e NC |
805 | } |
806 | ||
47e13f24 | 807 | if (IN_ENCODING) { |
81745e4e NC |
808 | if (!SvUTF8(sv)) { |
809 | /* XXX, here sv is utf8-ized as a side-effect! | |
810 | If encoding.pm is used properly, almost string-generating | |
811 | operations, including literal strings, chr(), input data, etc. | |
812 | should have been utf8-ized already, right? | |
813 | */ | |
ad2de1b2 | 814 | sv_recode_to_utf8(sv, _get_encoding()); |
81745e4e NC |
815 | } |
816 | } | |
817 | ||
818 | s = SvPV(sv, len); | |
819 | if (chomping) { | |
81745e4e | 820 | if (s && len) { |
997c424a DD |
821 | char *temp_buffer = NULL; |
822 | SV *svrecode = NULL; | |
81745e4e NC |
823 | s += --len; |
824 | if (RsPARA(PL_rs)) { | |
825 | if (*s != '\n') | |
997c424a | 826 | goto nope_free_nothing; |
f595e19f | 827 | ++count; |
81745e4e NC |
828 | while (len && s[-1] == '\n') { |
829 | --len; | |
830 | --s; | |
f595e19f | 831 | ++count; |
81745e4e NC |
832 | } |
833 | } | |
834 | else { | |
835 | STRLEN rslen, rs_charlen; | |
836 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
837 | ||
838 | rs_charlen = SvUTF8(PL_rs) | |
839 | ? sv_len_utf8(PL_rs) | |
840 | : rslen; | |
841 | ||
842 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
843 | /* Assumption is that rs is shorter than the scalar. */ | |
844 | if (SvUTF8(PL_rs)) { | |
845 | /* RS is utf8, scalar is 8 bit. */ | |
846 | bool is_utf8 = TRUE; | |
847 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
848 | &rslen, &is_utf8); | |
849 | if (is_utf8) { | |
997c424a DD |
850 | /* Cannot downgrade, therefore cannot possibly match. |
851 | At this point, temp_buffer is not alloced, and | |
852 | is the buffer inside PL_rs, so dont free it. | |
81745e4e NC |
853 | */ |
854 | assert (temp_buffer == rsptr); | |
997c424a | 855 | goto nope_free_sv; |
81745e4e NC |
856 | } |
857 | rsptr = temp_buffer; | |
858 | } | |
47e13f24 | 859 | else if (IN_ENCODING) { |
81745e4e NC |
860 | /* RS is 8 bit, encoding.pm is used. |
861 | * Do not recode PL_rs as a side-effect. */ | |
862 | svrecode = newSVpvn(rsptr, rslen); | |
ad2de1b2 | 863 | sv_recode_to_utf8(svrecode, _get_encoding()); |
81745e4e NC |
864 | rsptr = SvPV_const(svrecode, rslen); |
865 | rs_charlen = sv_len_utf8(svrecode); | |
866 | } | |
867 | else { | |
868 | /* RS is 8 bit, scalar is utf8. */ | |
869 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
870 | rsptr = temp_buffer; | |
871 | } | |
872 | } | |
873 | if (rslen == 1) { | |
874 | if (*s != *rsptr) | |
997c424a | 875 | goto nope_free_all; |
f595e19f | 876 | ++count; |
81745e4e NC |
877 | } |
878 | else { | |
879 | if (len < rslen - 1) | |
997c424a | 880 | goto nope_free_all; |
81745e4e NC |
881 | len -= rslen - 1; |
882 | s -= rslen - 1; | |
883 | if (memNE(s, rsptr, rslen)) | |
997c424a | 884 | goto nope_free_all; |
f595e19f | 885 | count += rs_charlen; |
81745e4e NC |
886 | } |
887 | } | |
3b7ded39 | 888 | SvPV_force_nomg_nolen(sv); |
81745e4e NC |
889 | SvCUR_set(sv, len); |
890 | *SvEND(sv) = '\0'; | |
891 | SvNIOK_off(sv); | |
892 | SvSETMAGIC(sv); | |
81745e4e | 893 | |
997c424a DD |
894 | nope_free_all: |
895 | Safefree(temp_buffer); | |
896 | nope_free_sv: | |
897 | SvREFCNT_dec(svrecode); | |
898 | nope_free_nothing: ; | |
899 | } | |
81745e4e | 900 | } else { |
f8c80a8e | 901 | if (len && (!SvPOK(sv) || SvIsCOW(sv))) |
81745e4e NC |
902 | s = SvPV_force_nomg(sv, len); |
903 | if (DO_UTF8(sv)) { | |
904 | if (s && len) { | |
905 | char * const send = s + len; | |
906 | char * const start = s; | |
907 | s = send - 1; | |
908 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
909 | s--; | |
910 | if (is_utf8_string((U8*)s, send - s)) { | |
911 | sv_setpvn(retval, s, send - s); | |
912 | *s = '\0'; | |
913 | SvCUR_set(sv, s - start); | |
914 | SvNIOK_off(sv); | |
915 | SvUTF8_on(retval); | |
916 | } | |
917 | } | |
918 | else | |
919 | sv_setpvs(retval, ""); | |
920 | } | |
921 | else if (s && len) { | |
922 | s += --len; | |
923 | sv_setpvn(retval, s, 1); | |
924 | *s = '\0'; | |
925 | SvCUR_set(sv, len); | |
926 | SvUTF8_off(sv); | |
927 | SvNIOK_off(sv); | |
928 | } | |
929 | else | |
930 | sv_setpvs(retval, ""); | |
931 | SvSETMAGIC(sv); | |
932 | } | |
f595e19f | 933 | return count; |
81745e4e NC |
934 | } |
935 | ||
b1c05ba5 DM |
936 | |
937 | /* also used for: pp_schomp() */ | |
938 | ||
a0d0e21e LW |
939 | PP(pp_schop) |
940 | { | |
20b7effb | 941 | dSP; dTARGET; |
fa54efae NC |
942 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
943 | ||
f595e19f | 944 | const size_t count = do_chomp(TARG, TOPs, chomping); |
fa54efae | 945 | if (chomping) |
f595e19f | 946 | sv_setiv(TARG, count); |
a0d0e21e | 947 | SETTARG; |
ee41d8c7 | 948 | return NORMAL; |
79072805 LW |
949 | } |
950 | ||
b1c05ba5 DM |
951 | |
952 | /* also used for: pp_chomp() */ | |
953 | ||
a0d0e21e | 954 | PP(pp_chop) |
79072805 | 955 | { |
20b7effb | 956 | dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 957 | const bool chomping = PL_op->op_type == OP_CHOMP; |
f595e19f | 958 | size_t count = 0; |
8ec5e241 | 959 | |
20cf1f79 | 960 | while (MARK < SP) |
f595e19f FC |
961 | count += do_chomp(TARG, *++MARK, chomping); |
962 | if (chomping) | |
963 | sv_setiv(TARG, count); | |
20cf1f79 NC |
964 | SP = ORIGMARK; |
965 | XPUSHTARG; | |
a0d0e21e | 966 | RETURN; |
79072805 LW |
967 | } |
968 | ||
a0d0e21e LW |
969 | PP(pp_undef) |
970 | { | |
20b7effb | 971 | dSP; |
a0d0e21e LW |
972 | SV *sv; |
973 | ||
533c011a | 974 | if (!PL_op->op_private) { |
774d564b | 975 | EXTEND(SP, 1); |
a0d0e21e | 976 | RETPUSHUNDEF; |
774d564b | 977 | } |
79072805 | 978 | |
821f14b0 | 979 | sv = TOPs; |
a0d0e21e | 980 | if (!sv) |
821f14b0 FC |
981 | { |
982 | SETs(&PL_sv_undef); | |
983 | return NORMAL; | |
984 | } | |
85e6fe83 | 985 | |
4dda930b FC |
986 | if (SvTHINKFIRST(sv)) |
987 | sv_force_normal_flags(sv, SV_COW_DROP_PV|SV_IMMEDIATE_UNREF); | |
85e6fe83 | 988 | |
a0d0e21e LW |
989 | switch (SvTYPE(sv)) { |
990 | case SVt_NULL: | |
991 | break; | |
992 | case SVt_PVAV: | |
60edcf09 | 993 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
994 | break; |
995 | case SVt_PVHV: | |
60edcf09 | 996 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
997 | break; |
998 | case SVt_PVCV: | |
a2a5de95 | 999 | if (cv_const_sv((const CV *)sv)) |
714cd18f BF |
1000 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
1001 | "Constant subroutine %"SVf" undefined", | |
1002 | SVfARG(CvANON((const CV *)sv) | |
1003 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
1004 | : sv_2mortal(newSVhek( |
1005 | CvNAMED(sv) | |
1006 | ? CvNAME_HEK((CV *)sv) | |
1007 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
1008 | )) | |
1009 | )); | |
5f66b61c | 1010 | /* FALLTHROUGH */ |
9607fc9c | 1011 | case SVt_PVFM: |
6fc92669 | 1012 | /* let user-undef'd sub keep its identity */ |
b7acb0a3 | 1013 | cv_undef_flags(MUTABLE_CV(sv), CV_UNDEF_KEEP_NAME); |
a0d0e21e | 1014 | break; |
8e07c86e | 1015 | case SVt_PVGV: |
bc1df6c2 FC |
1016 | assert(isGV_with_GP(sv)); |
1017 | assert(!SvFAKE(sv)); | |
1018 | { | |
20408e3c | 1019 | GP *gp; |
dd69841b BB |
1020 | HV *stash; |
1021 | ||
dd69841b | 1022 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
1023 | bool method_changed |
1024 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
1025 | && HvENAME_get(stash); | |
1026 | /* undef *Foo:: */ | |
1027 | if((stash = GvHV((const GV *)sv))) { | |
1028 | if(HvENAME_get(stash)) | |
1029 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
1030 | else stash = NULL; | |
1031 | } | |
dd69841b | 1032 | |
795eb8c8 | 1033 | SvREFCNT_inc_simple_void_NN(sv_2mortal(sv)); |
159b6efe | 1034 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 1035 | Newxz(gp, 1, GP); |
c43ae56f | 1036 | GvGP_set(sv, gp_ref(gp)); |
2e3295e3 | 1037 | #ifndef PERL_DONT_CREATE_GVSV |
561b68a9 | 1038 | GvSV(sv) = newSV(0); |
2e3295e3 | 1039 | #endif |
57843af0 | 1040 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 1041 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 1042 | GvMULTI_on(sv); |
e530fb81 FC |
1043 | |
1044 | if(stash) | |
afdbe55d | 1045 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
1046 | stash = NULL; |
1047 | /* undef *Foo::ISA */ | |
1048 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
1049 | && (stash = GvSTASH((const GV *)sv)) | |
1050 | && (method_changed || HvENAME(stash)) ) | |
1051 | mro_isa_changed_in(stash); | |
1052 | else if(method_changed) | |
1053 | mro_method_changed_in( | |
da9043f5 | 1054 | GvSTASH((const GV *)sv) |
e530fb81 FC |
1055 | ); |
1056 | ||
6e592b3a | 1057 | break; |
20408e3c | 1058 | } |
a0d0e21e | 1059 | default: |
b15aece3 | 1060 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 1061 | SvPV_free(sv); |
c445ea15 | 1062 | SvPV_set(sv, NULL); |
4633a7c4 | 1063 | SvLEN_set(sv, 0); |
a0d0e21e | 1064 | } |
0c34ef67 | 1065 | SvOK_off(sv); |
4633a7c4 | 1066 | SvSETMAGIC(sv); |
79072805 | 1067 | } |
a0d0e21e | 1068 | |
821f14b0 FC |
1069 | SETs(&PL_sv_undef); |
1070 | return NORMAL; | |
79072805 LW |
1071 | } |
1072 | ||
b1c05ba5 DM |
1073 | |
1074 | /* also used for: pp_i_postdec() pp_i_postinc() pp_postdec() */ | |
1075 | ||
a0d0e21e LW |
1076 | PP(pp_postinc) |
1077 | { | |
20b7effb | 1078 | dSP; dTARGET; |
c22c99bc FC |
1079 | const bool inc = |
1080 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
60092ce4 | 1081 | if (SvTYPE(TOPs) >= SVt_PVAV || (isGV_with_GP(TOPs) && !SvFAKE(TOPs))) |
cb077ed2 | 1082 | Perl_croak_no_modify(); |
3baa0581 | 1083 | if (SvROK(TOPs)) |
7dcb9b98 | 1084 | TARG = sv_newmortal(); |
a0d0e21e | 1085 | sv_setsv(TARG, TOPs); |
4bac9ae4 | 1086 | if (!SvREADONLY(TOPs) && !SvGMAGICAL(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
c22c99bc | 1087 | && SvIVX(TOPs) != (inc ? IV_MAX : IV_MIN)) |
55497cff | 1088 | { |
c22c99bc | 1089 | SvIV_set(TOPs, SvIVX(TOPs) + (inc ? 1 : -1)); |
55497cff | 1090 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 | 1091 | } |
c22c99bc | 1092 | else if (inc) |
6f1401dc | 1093 | sv_inc_nomg(TOPs); |
c22c99bc | 1094 | else sv_dec_nomg(TOPs); |
a0d0e21e | 1095 | SvSETMAGIC(TOPs); |
1e54a23f | 1096 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1097 | if (inc && !SvOK(TARG)) |
a0d0e21e | 1098 | sv_setiv(TARG, 0); |
e87de4ab | 1099 | SETTARG; |
a0d0e21e LW |
1100 | return NORMAL; |
1101 | } | |
79072805 | 1102 | |
a0d0e21e LW |
1103 | /* Ordinary operators. */ |
1104 | ||
1105 | PP(pp_pow) | |
1106 | { | |
20b7effb | 1107 | dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1108 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1109 | bool is_int = 0; |
1110 | #endif | |
6f1401dc DM |
1111 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1112 | svr = TOPs; | |
1113 | svl = TOPm1s; | |
52a96ae6 HS |
1114 | #ifdef PERL_PRESERVE_IVUV |
1115 | /* For integer to integer power, we do the calculation by hand wherever | |
1116 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1117 | integer afterwards. */ | |
01f91bf2 | 1118 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1119 | UV power; |
1120 | bool baseuok; | |
1121 | UV baseuv; | |
1122 | ||
800401ee JH |
1123 | if (SvUOK(svr)) { |
1124 | power = SvUVX(svr); | |
900658e3 | 1125 | } else { |
800401ee | 1126 | const IV iv = SvIVX(svr); |
900658e3 PF |
1127 | if (iv >= 0) { |
1128 | power = iv; | |
1129 | } else { | |
1130 | goto float_it; /* Can't do negative powers this way. */ | |
1131 | } | |
1132 | } | |
1133 | ||
800401ee | 1134 | baseuok = SvUOK(svl); |
900658e3 | 1135 | if (baseuok) { |
800401ee | 1136 | baseuv = SvUVX(svl); |
900658e3 | 1137 | } else { |
800401ee | 1138 | const IV iv = SvIVX(svl); |
900658e3 PF |
1139 | if (iv >= 0) { |
1140 | baseuv = iv; | |
1141 | baseuok = TRUE; /* effectively it's a UV now */ | |
1142 | } else { | |
1143 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1144 | } | |
1145 | } | |
52a96ae6 HS |
1146 | /* now we have integer ** positive integer. */ |
1147 | is_int = 1; | |
1148 | ||
1149 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1150 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1151 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1152 | The logic here will work for any base (even non-integer |
1153 | bases) but it can be less accurate than | |
1154 | pow (base,power) or exp (power * log (base)) when the | |
1155 | intermediate values start to spill out of the mantissa. | |
1156 | With powers of 2 we know this can't happen. | |
1157 | And powers of 2 are the favourite thing for perl | |
1158 | programmers to notice ** not doing what they mean. */ | |
1159 | NV result = 1.0; | |
1160 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1161 | |
1162 | if (power & 1) { | |
1163 | result *= base; | |
1164 | } | |
1165 | while (power >>= 1) { | |
1166 | base *= base; | |
1167 | if (power & 1) { | |
1168 | result *= base; | |
1169 | } | |
1170 | } | |
58d76dfd JH |
1171 | SP--; |
1172 | SETn( result ); | |
6f1401dc | 1173 | SvIV_please_nomg(svr); |
58d76dfd | 1174 | RETURN; |
52a96ae6 | 1175 | } else { |
eb578fdb KW |
1176 | unsigned int highbit = 8 * sizeof(UV); |
1177 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1178 | while (diff >>= 1) { |
1179 | highbit -= diff; | |
1180 | if (baseuv >> highbit) { | |
1181 | highbit += diff; | |
1182 | } | |
52a96ae6 HS |
1183 | } |
1184 | /* we now have baseuv < 2 ** highbit */ | |
1185 | if (power * highbit <= 8 * sizeof(UV)) { | |
1186 | /* result will definitely fit in UV, so use UV math | |
1187 | on same algorithm as above */ | |
eb578fdb KW |
1188 | UV result = 1; |
1189 | UV base = baseuv; | |
f2338a2e | 1190 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1191 | if (odd_power) { |
1192 | result *= base; | |
1193 | } | |
1194 | while (power >>= 1) { | |
1195 | base *= base; | |
1196 | if (power & 1) { | |
52a96ae6 | 1197 | result *= base; |
52a96ae6 HS |
1198 | } |
1199 | } | |
1200 | SP--; | |
0615a994 | 1201 | if (baseuok || !odd_power) |
52a96ae6 HS |
1202 | /* answer is positive */ |
1203 | SETu( result ); | |
1204 | else if (result <= (UV)IV_MAX) | |
1205 | /* answer negative, fits in IV */ | |
1206 | SETi( -(IV)result ); | |
1207 | else if (result == (UV)IV_MIN) | |
1208 | /* 2's complement assumption: special case IV_MIN */ | |
1209 | SETi( IV_MIN ); | |
1210 | else | |
1211 | /* answer negative, doesn't fit */ | |
1212 | SETn( -(NV)result ); | |
1213 | RETURN; | |
1214 | } | |
1215 | } | |
58d76dfd | 1216 | } |
52a96ae6 | 1217 | float_it: |
58d76dfd | 1218 | #endif |
a0d0e21e | 1219 | { |
6f1401dc DM |
1220 | NV right = SvNV_nomg(svr); |
1221 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1222 | (void)POPs; |
3aaeb624 JA |
1223 | |
1224 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1225 | /* | |
1226 | We are building perl with long double support and are on an AIX OS | |
1227 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1228 | negative base. This was reported to IBM as PMR #23047-379 on | |
1229 | 03/06/2006. The problem exists in at least the following versions | |
1230 | of AIX and the libm fileset, and no doubt others as well: | |
1231 | ||
1232 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1233 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1234 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1235 | ||
1236 | So, until IBM fixes powl(), we provide the following workaround to | |
1237 | handle the problem ourselves. Our logic is as follows: for | |
1238 | negative bases (left), we use fmod(right, 2) to check if the | |
1239 | exponent is an odd or even integer: | |
1240 | ||
1241 | - if odd, powl(left, right) == -powl(-left, right) | |
1242 | - if even, powl(left, right) == powl(-left, right) | |
1243 | ||
1244 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1245 | we just return that (as NV_NAN). | |
1246 | */ | |
1247 | ||
1248 | if (left < 0.0) { | |
1249 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1250 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1251 | SETn( -Perl_pow( -left, right) ); | |
1252 | } else if (mod2 == 0.0) { /* even integer */ | |
1253 | SETn( Perl_pow( -left, right) ); | |
1254 | } else { /* fractional power */ | |
1255 | SETn( NV_NAN ); | |
1256 | } | |
1257 | } else { | |
1258 | SETn( Perl_pow( left, right) ); | |
1259 | } | |
1260 | #else | |
52a96ae6 | 1261 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1262 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1263 | ||
52a96ae6 HS |
1264 | #ifdef PERL_PRESERVE_IVUV |
1265 | if (is_int) | |
6f1401dc | 1266 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1267 | #endif |
1268 | RETURN; | |
93a17b20 | 1269 | } |
a0d0e21e LW |
1270 | } |
1271 | ||
1272 | PP(pp_multiply) | |
1273 | { | |
20b7effb | 1274 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1275 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1276 | svr = TOPs; | |
1277 | svl = TOPm1s; | |
28e5dec8 | 1278 | #ifdef PERL_PRESERVE_IVUV |
01f91bf2 | 1279 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1280 | /* Unless the left argument is integer in range we are going to have to |
1281 | use NV maths. Hence only attempt to coerce the right argument if | |
1282 | we know the left is integer. */ | |
1283 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1284 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1285 | bool auvok = SvUOK(svl); |
1286 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1287 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1288 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1289 | UV alow; | |
1290 | UV ahigh; | |
1291 | UV blow; | |
1292 | UV bhigh; | |
1293 | ||
1294 | if (auvok) { | |
800401ee | 1295 | alow = SvUVX(svl); |
28e5dec8 | 1296 | } else { |
800401ee | 1297 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1298 | if (aiv >= 0) { |
1299 | alow = aiv; | |
1300 | auvok = TRUE; /* effectively it's a UV now */ | |
1301 | } else { | |
53e2bfb7 DM |
1302 | /* abs, auvok == false records sign */ |
1303 | alow = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); | |
28e5dec8 JH |
1304 | } |
1305 | } | |
1306 | if (buvok) { | |
800401ee | 1307 | blow = SvUVX(svr); |
28e5dec8 | 1308 | } else { |
800401ee | 1309 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1310 | if (biv >= 0) { |
1311 | blow = biv; | |
1312 | buvok = TRUE; /* effectively it's a UV now */ | |
1313 | } else { | |
53e2bfb7 DM |
1314 | /* abs, buvok == false records sign */ |
1315 | blow = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); | |
28e5dec8 JH |
1316 | } |
1317 | } | |
1318 | ||
1319 | /* If this does sign extension on unsigned it's time for plan B */ | |
1320 | ahigh = alow >> (4 * sizeof (UV)); | |
1321 | alow &= botmask; | |
1322 | bhigh = blow >> (4 * sizeof (UV)); | |
1323 | blow &= botmask; | |
1324 | if (ahigh && bhigh) { | |
6f207bd3 | 1325 | NOOP; |
28e5dec8 JH |
1326 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1327 | which is overflow. Drop to NVs below. */ | |
1328 | } else if (!ahigh && !bhigh) { | |
1329 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1330 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1331 | const UV product = alow * blow; |
28e5dec8 JH |
1332 | if (auvok == buvok) { |
1333 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1334 | SP--; | |
1335 | SETu( product ); | |
1336 | RETURN; | |
1337 | } else if (product <= (UV)IV_MIN) { | |
1338 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1339 | /* -ve result, which could overflow an IV */ | |
1340 | SP--; | |
02b08bbc DM |
1341 | /* can't negate IV_MIN, but there are aren't two |
1342 | * integers such that !ahigh && !bhigh, where the | |
1343 | * product equals 0x800....000 */ | |
1344 | assert(product != (UV)IV_MIN); | |
25716404 | 1345 | SETi( -(IV)product ); |
28e5dec8 JH |
1346 | RETURN; |
1347 | } /* else drop to NVs below. */ | |
1348 | } else { | |
1349 | /* One operand is large, 1 small */ | |
1350 | UV product_middle; | |
1351 | if (bhigh) { | |
1352 | /* swap the operands */ | |
1353 | ahigh = bhigh; | |
1354 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1355 | blow = alow; | |
1356 | alow = bhigh; | |
1357 | } | |
1358 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1359 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1360 | product_middle = ahigh * blow; | |
1361 | if (!(product_middle & topmask)) { | |
1362 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1363 | UV product_low; | |
1364 | product_middle <<= (4 * sizeof (UV)); | |
1365 | product_low = alow * blow; | |
1366 | ||
1367 | /* as for pp_add, UV + something mustn't get smaller. | |
1368 | IIRC ANSI mandates this wrapping *behaviour* for | |
1369 | unsigned whatever the actual representation*/ | |
1370 | product_low += product_middle; | |
1371 | if (product_low >= product_middle) { | |
1372 | /* didn't overflow */ | |
1373 | if (auvok == buvok) { | |
1374 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1375 | SP--; | |
1376 | SETu( product_low ); | |
1377 | RETURN; | |
1378 | } else if (product_low <= (UV)IV_MIN) { | |
1379 | /* 2s complement assumption again */ | |
1380 | /* -ve result, which could overflow an IV */ | |
1381 | SP--; | |
53e2bfb7 DM |
1382 | SETi(product_low == (UV)IV_MIN |
1383 | ? IV_MIN : -(IV)product_low); | |
28e5dec8 JH |
1384 | RETURN; |
1385 | } /* else drop to NVs below. */ | |
1386 | } | |
1387 | } /* product_middle too large */ | |
1388 | } /* ahigh && bhigh */ | |
800401ee JH |
1389 | } /* SvIOK(svl) */ |
1390 | } /* SvIOK(svr) */ | |
28e5dec8 | 1391 | #endif |
a0d0e21e | 1392 | { |
6f1401dc DM |
1393 | NV right = SvNV_nomg(svr); |
1394 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1395 | (void)POPs; |
a0d0e21e LW |
1396 | SETn( left * right ); |
1397 | RETURN; | |
79072805 | 1398 | } |
a0d0e21e LW |
1399 | } |
1400 | ||
1401 | PP(pp_divide) | |
1402 | { | |
20b7effb | 1403 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1404 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1405 | svr = TOPs; | |
1406 | svl = TOPm1s; | |
5479d192 | 1407 | /* Only try to do UV divide first |
68795e93 | 1408 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1409 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1410 | to preserve)) | |
1411 | The assumption is that it is better to use floating point divide | |
1412 | whenever possible, only doing integer divide first if we can't be sure. | |
1413 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1414 | can be too large to preserve, so don't need to compile the code to | |
1415 | test the size of UVs. */ | |
1416 | ||
a0d0e21e | 1417 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1418 | # define PERL_TRY_UV_DIVIDE |
1419 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1420 | #else |
5479d192 NC |
1421 | # ifdef PERL_PRESERVE_IVUV |
1422 | # ifndef NV_PRESERVES_UV | |
1423 | # define PERL_TRY_UV_DIVIDE | |
1424 | # endif | |
1425 | # endif | |
a0d0e21e | 1426 | #endif |
5479d192 NC |
1427 | |
1428 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1429 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1430 | bool left_non_neg = SvUOK(svl); |
1431 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1432 | UV left; |
1433 | UV right; | |
1434 | ||
1435 | if (right_non_neg) { | |
800401ee | 1436 | right = SvUVX(svr); |
5479d192 NC |
1437 | } |
1438 | else { | |
800401ee | 1439 | const IV biv = SvIVX(svr); |
5479d192 NC |
1440 | if (biv >= 0) { |
1441 | right = biv; | |
1442 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1443 | } | |
1444 | else { | |
02b08bbc | 1445 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
5479d192 NC |
1446 | } |
1447 | } | |
1448 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1449 | warning before dieing, hence this test goes here. | |
1450 | If it were immediately before the second SvIV_please, then | |
1451 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1452 | no inspection would give no warning. */ |
5479d192 NC |
1453 | if (right == 0) |
1454 | DIE(aTHX_ "Illegal division by zero"); | |
1455 | ||
1456 | if (left_non_neg) { | |
800401ee | 1457 | left = SvUVX(svl); |
5479d192 NC |
1458 | } |
1459 | else { | |
800401ee | 1460 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1461 | if (aiv >= 0) { |
1462 | left = aiv; | |
1463 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1464 | } | |
1465 | else { | |
02b08bbc | 1466 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
5479d192 NC |
1467 | } |
1468 | } | |
1469 | ||
1470 | if (left >= right | |
1471 | #ifdef SLOPPYDIVIDE | |
1472 | /* For sloppy divide we always attempt integer division. */ | |
1473 | #else | |
1474 | /* Otherwise we only attempt it if either or both operands | |
1475 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1476 | we fall through to the NV divide code below. However, |
1477 | as left >= right to ensure integer result here, we know that | |
1478 | we can skip the test on the right operand - right big | |
1479 | enough not to be preserved can't get here unless left is | |
1480 | also too big. */ | |
1481 | ||
1482 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1483 | #endif |
1484 | ) { | |
1485 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1486 | const UV result = left / right; |
5479d192 NC |
1487 | if (result * right == left) { |
1488 | SP--; /* result is valid */ | |
1489 | if (left_non_neg == right_non_neg) { | |
1490 | /* signs identical, result is positive. */ | |
1491 | SETu( result ); | |
1492 | RETURN; | |
1493 | } | |
1494 | /* 2s complement assumption */ | |
1495 | if (result <= (UV)IV_MIN) | |
02b08bbc | 1496 | SETi(result == (UV)IV_MIN ? IV_MIN : -(IV)result); |
5479d192 NC |
1497 | else { |
1498 | /* It's exact but too negative for IV. */ | |
1499 | SETn( -(NV)result ); | |
1500 | } | |
1501 | RETURN; | |
1502 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1503 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1504 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1505 | #endif /* PERL_TRY_UV_DIVIDE */ |
1506 | { | |
6f1401dc DM |
1507 | NV right = SvNV_nomg(svr); |
1508 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1509 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1510 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1511 | if (! Perl_isnan(right) && right == 0.0) | |
1512 | #else | |
659c4b96 | 1513 | if (right == 0.0) |
ebc6a117 | 1514 | #endif |
5479d192 NC |
1515 | DIE(aTHX_ "Illegal division by zero"); |
1516 | PUSHn( left / right ); | |
1517 | RETURN; | |
79072805 | 1518 | } |
a0d0e21e LW |
1519 | } |
1520 | ||
1521 | PP(pp_modulo) | |
1522 | { | |
20b7effb | 1523 | dSP; dATARGET; |
6f1401dc | 1524 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); |
a0d0e21e | 1525 | { |
9c5ffd7c JH |
1526 | UV left = 0; |
1527 | UV right = 0; | |
dc656993 JH |
1528 | bool left_neg = FALSE; |
1529 | bool right_neg = FALSE; | |
e2c88acc NC |
1530 | bool use_double = FALSE; |
1531 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1532 | NV dright = 0.0; |
1533 | NV dleft = 0.0; | |
6f1401dc DM |
1534 | SV * const svr = TOPs; |
1535 | SV * const svl = TOPm1s; | |
01f91bf2 | 1536 | if (SvIV_please_nomg(svr)) { |
800401ee | 1537 | right_neg = !SvUOK(svr); |
e2c88acc | 1538 | if (!right_neg) { |
800401ee | 1539 | right = SvUVX(svr); |
e2c88acc | 1540 | } else { |
800401ee | 1541 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1542 | if (biv >= 0) { |
1543 | right = biv; | |
1544 | right_neg = FALSE; /* effectively it's a UV now */ | |
1545 | } else { | |
02b08bbc | 1546 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
e2c88acc NC |
1547 | } |
1548 | } | |
1549 | } | |
1550 | else { | |
6f1401dc | 1551 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1552 | right_neg = dright < 0; |
1553 | if (right_neg) | |
1554 | dright = -dright; | |
e2c88acc NC |
1555 | if (dright < UV_MAX_P1) { |
1556 | right = U_V(dright); | |
1557 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1558 | } else { | |
1559 | use_double = TRUE; | |
1560 | } | |
787eafbd | 1561 | } |
a0d0e21e | 1562 | |
e2c88acc NC |
1563 | /* At this point use_double is only true if right is out of range for |
1564 | a UV. In range NV has been rounded down to nearest UV and | |
1565 | use_double false. */ | |
01f91bf2 | 1566 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1567 | left_neg = !SvUOK(svl); |
e2c88acc | 1568 | if (!left_neg) { |
800401ee | 1569 | left = SvUVX(svl); |
e2c88acc | 1570 | } else { |
800401ee | 1571 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1572 | if (aiv >= 0) { |
1573 | left = aiv; | |
1574 | left_neg = FALSE; /* effectively it's a UV now */ | |
1575 | } else { | |
02b08bbc | 1576 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
e2c88acc NC |
1577 | } |
1578 | } | |
e2c88acc | 1579 | } |
787eafbd | 1580 | else { |
6f1401dc | 1581 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1582 | left_neg = dleft < 0; |
1583 | if (left_neg) | |
1584 | dleft = -dleft; | |
68dc0745 | 1585 | |
e2c88acc NC |
1586 | /* This should be exactly the 5.6 behaviour - if left and right are |
1587 | both in range for UV then use U_V() rather than floor. */ | |
1588 | if (!use_double) { | |
1589 | if (dleft < UV_MAX_P1) { | |
1590 | /* right was in range, so is dleft, so use UVs not double. | |
1591 | */ | |
1592 | left = U_V(dleft); | |
1593 | } | |
1594 | /* left is out of range for UV, right was in range, so promote | |
1595 | right (back) to double. */ | |
1596 | else { | |
1597 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1598 | consistent with the implicit +0 floor in the U_V() | |
1599 | inside the #if 1. */ | |
1600 | dleft = Perl_floor(dleft + 0.5); | |
1601 | use_double = TRUE; | |
1602 | if (dright_valid) | |
1603 | dright = Perl_floor(dright + 0.5); | |
1604 | else | |
1605 | dright = right; | |
1606 | } | |
1607 | } | |
1608 | } | |
6f1401dc | 1609 | sp -= 2; |
787eafbd | 1610 | if (use_double) { |
65202027 | 1611 | NV dans; |
787eafbd | 1612 | |
659c4b96 | 1613 | if (!dright) |
cea2e8a9 | 1614 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1615 | |
65202027 | 1616 | dans = Perl_fmod(dleft, dright); |
659c4b96 | 1617 | if ((left_neg != right_neg) && dans) |
787eafbd IZ |
1618 | dans = dright - dans; |
1619 | if (right_neg) | |
1620 | dans = -dans; | |
1621 | sv_setnv(TARG, dans); | |
1622 | } | |
1623 | else { | |
1624 | UV ans; | |
1625 | ||
787eafbd | 1626 | if (!right) |
cea2e8a9 | 1627 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1628 | |
1629 | ans = left % right; | |
1630 | if ((left_neg != right_neg) && ans) | |
1631 | ans = right - ans; | |
1632 | if (right_neg) { | |
1633 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1634 | /* could change -foo to be (~foo)+1 instead */ | |
1635 | if (ans <= ~((UV)IV_MAX)+1) | |
1636 | sv_setiv(TARG, ~ans+1); | |
1637 | else | |
65202027 | 1638 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1639 | } |
1640 | else | |
1641 | sv_setuv(TARG, ans); | |
1642 | } | |
1643 | PUSHTARG; | |
1644 | RETURN; | |
79072805 | 1645 | } |
a0d0e21e | 1646 | } |
79072805 | 1647 | |
a0d0e21e LW |
1648 | PP(pp_repeat) |
1649 | { | |
20b7effb | 1650 | dSP; dATARGET; |
eb578fdb | 1651 | IV count; |
6f1401dc | 1652 | SV *sv; |
02a7a248 | 1653 | bool infnan = FALSE; |
6f1401dc | 1654 | |
82334630 | 1655 | if (GIMME_V == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
6f1401dc DM |
1656 | /* TODO: think of some way of doing list-repeat overloading ??? */ |
1657 | sv = POPs; | |
1658 | SvGETMAGIC(sv); | |
1659 | } | |
1660 | else { | |
3a100dab FC |
1661 | if (UNLIKELY(PL_op->op_private & OPpREPEAT_DOLIST)) { |
1662 | /* The parser saw this as a list repeat, and there | |
1663 | are probably several items on the stack. But we're | |
1664 | in scalar/void context, and there's no pp_list to save us | |
1665 | now. So drop the rest of the items -- robin@kitsite.com | |
1666 | */ | |
1667 | dMARK; | |
1668 | if (MARK + 1 < SP) { | |
1669 | MARK[1] = TOPm1s; | |
1670 | MARK[2] = TOPs; | |
1671 | } | |
1672 | else { | |
1673 | dTOPss; | |
1674 | ASSUME(MARK + 1 == SP); | |
1675 | XPUSHs(sv); | |
1676 | MARK[1] = &PL_sv_undef; | |
1677 | } | |
1678 | SP = MARK + 2; | |
1679 | } | |
6f1401dc DM |
1680 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); |
1681 | sv = POPs; | |
1682 | } | |
1683 | ||
2b573ace JH |
1684 | if (SvIOKp(sv)) { |
1685 | if (SvUOK(sv)) { | |
6f1401dc | 1686 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1687 | if (uv > IV_MAX) |
1688 | count = IV_MAX; /* The best we can do? */ | |
1689 | else | |
1690 | count = uv; | |
1691 | } else { | |
b3211734 | 1692 | count = SvIV_nomg(sv); |
2b573ace JH |
1693 | } |
1694 | } | |
1695 | else if (SvNOKp(sv)) { | |
02a7a248 JH |
1696 | const NV nv = SvNV_nomg(sv); |
1697 | infnan = Perl_isinfnan(nv); | |
1698 | if (UNLIKELY(infnan)) { | |
1699 | count = 0; | |
1700 | } else { | |
1701 | if (nv < 0.0) | |
1702 | count = -1; /* An arbitrary negative integer */ | |
1703 | else | |
1704 | count = (IV)nv; | |
1705 | } | |
2b573ace JH |
1706 | } |
1707 | else | |
02a7a248 | 1708 | count = SvIV_nomg(sv); |
6f1401dc | 1709 | |
02a7a248 JH |
1710 | if (infnan) { |
1711 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
1712 | "Non-finite repeat count does nothing"); | |
1713 | } else if (count < 0) { | |
b3211734 KW |
1714 | count = 0; |
1715 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
02a7a248 | 1716 | "Negative repeat count does nothing"); |
b3211734 KW |
1717 | } |
1718 | ||
82334630 | 1719 | if (GIMME_V == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1720 | dMARK; |
052a7c76 | 1721 | const SSize_t items = SP - MARK; |
da9e430b | 1722 | const U8 mod = PL_op->op_flags & OPf_MOD; |
79072805 | 1723 | |
a0d0e21e | 1724 | if (count > 1) { |
052a7c76 | 1725 | SSize_t max; |
b3b27d01 | 1726 | |
052a7c76 DM |
1727 | if ( items > SSize_t_MAX / count /* max would overflow */ |
1728 | /* repeatcpy would overflow */ | |
1729 | || items > I32_MAX / (I32)sizeof(SV *) | |
b3b27d01 DM |
1730 | ) |
1731 | Perl_croak(aTHX_ "%s","Out of memory during list extend"); | |
1732 | max = items * count; | |
1733 | MEXTEND(MARK, max); | |
1734 | ||
a0d0e21e | 1735 | while (SP > MARK) { |
60779a30 DM |
1736 | if (*SP) { |
1737 | if (mod && SvPADTMP(*SP)) { | |
da9e430b | 1738 | *SP = sv_mortalcopy(*SP); |
60779a30 | 1739 | } |
976c8a39 | 1740 | SvTEMP_off((*SP)); |
da9e430b | 1741 | } |
a0d0e21e | 1742 | SP--; |
79072805 | 1743 | } |
a0d0e21e LW |
1744 | MARK++; |
1745 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1746 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1747 | SP += max; |
79072805 | 1748 | } |
a0d0e21e | 1749 | else if (count <= 0) |
052a7c76 | 1750 | SP = MARK; |
79072805 | 1751 | } |
a0d0e21e | 1752 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1753 | SV * const tmpstr = POPs; |
a0d0e21e | 1754 | STRLEN len; |
9b877dbb | 1755 | bool isutf; |
a0d0e21e | 1756 | |
6f1401dc DM |
1757 | if (TARG != tmpstr) |
1758 | sv_setsv_nomg(TARG, tmpstr); | |
1759 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1760 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1761 | if (count != 1) { |
1762 | if (count < 1) | |
1763 | SvCUR_set(TARG, 0); | |
1764 | else { | |
b3b27d01 DM |
1765 | STRLEN max; |
1766 | ||
1767 | if ( len > (MEM_SIZE_MAX-1) / (UV)count /* max would overflow */ | |
1768 | || len > (U32)I32_MAX /* repeatcpy would overflow */ | |
1769 | ) | |
1770 | Perl_croak(aTHX_ "%s", | |
1771 | "Out of memory during string extend"); | |
1772 | max = (UV)count * len + 1; | |
1773 | SvGROW(TARG, max); | |
1774 | ||
a0d0e21e | 1775 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1776 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1777 | } |
a0d0e21e | 1778 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1779 | } |
dfcb284a GS |
1780 | if (isutf) |
1781 | (void)SvPOK_only_UTF8(TARG); | |
1782 | else | |
1783 | (void)SvPOK_only(TARG); | |
b80b6069 | 1784 | |
a0d0e21e | 1785 | PUSHTARG; |
79072805 | 1786 | } |
a0d0e21e LW |
1787 | RETURN; |
1788 | } | |
79072805 | 1789 | |
a0d0e21e LW |
1790 | PP(pp_subtract) |
1791 | { | |
20b7effb | 1792 | dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1793 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1794 | svr = TOPs; | |
1795 | svl = TOPm1s; | |
800401ee | 1796 | useleft = USE_LEFT(svl); |
28e5dec8 | 1797 | #ifdef PERL_PRESERVE_IVUV |
7dca457a NC |
1798 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1799 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1800 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1801 | /* Unless the left argument is integer in range we are going to have to |
1802 | use NV maths. Hence only attempt to coerce the right argument if | |
1803 | we know the left is integer. */ | |
eb578fdb | 1804 | UV auv = 0; |
9c5ffd7c | 1805 | bool auvok = FALSE; |
7dca457a NC |
1806 | bool a_valid = 0; |
1807 | ||
28e5dec8 | 1808 | if (!useleft) { |
7dca457a NC |
1809 | auv = 0; |
1810 | a_valid = auvok = 1; | |
1811 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1812 | } else { |
1813 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1814 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1815 | if ((auvok = SvUOK(svl))) |
1816 | auv = SvUVX(svl); | |
7dca457a | 1817 | else { |
eb578fdb | 1818 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1819 | if (aiv >= 0) { |
1820 | auv = aiv; | |
1821 | auvok = 1; /* Now acting as a sign flag. */ | |
1822 | } else { /* 2s complement assumption for IV_MIN */ | |
53e2bfb7 | 1823 | auv = (aiv == IV_MIN) ? (UV)aiv : (UV)-aiv; |
28e5dec8 | 1824 | } |
7dca457a NC |
1825 | } |
1826 | a_valid = 1; | |
1827 | } | |
1828 | } | |
1829 | if (a_valid) { | |
1830 | bool result_good = 0; | |
1831 | UV result; | |
eb578fdb | 1832 | UV buv; |
800401ee | 1833 | bool buvok = SvUOK(svr); |
9041c2e3 | 1834 | |
7dca457a | 1835 | if (buvok) |
800401ee | 1836 | buv = SvUVX(svr); |
7dca457a | 1837 | else { |
eb578fdb | 1838 | const IV biv = SvIVX(svr); |
7dca457a NC |
1839 | if (biv >= 0) { |
1840 | buv = biv; | |
1841 | buvok = 1; | |
1842 | } else | |
53e2bfb7 | 1843 | buv = (biv == IV_MIN) ? (UV)biv : (UV)-biv; |
7dca457a NC |
1844 | } |
1845 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1846 | else "IV" now, independent of how it came in. |
7dca457a NC |
1847 | if a, b represents positive, A, B negative, a maps to -A etc |
1848 | a - b => (a - b) | |
1849 | A - b => -(a + b) | |
1850 | a - B => (a + b) | |
1851 | A - B => -(a - b) | |
1852 | all UV maths. negate result if A negative. | |
1853 | subtract if signs same, add if signs differ. */ | |
1854 | ||
1855 | if (auvok ^ buvok) { | |
1856 | /* Signs differ. */ | |
1857 | result = auv + buv; | |
1858 | if (result >= auv) | |
1859 | result_good = 1; | |
1860 | } else { | |
1861 | /* Signs same */ | |
1862 | if (auv >= buv) { | |
1863 | result = auv - buv; | |
1864 | /* Must get smaller */ | |
1865 | if (result <= auv) | |
1866 | result_good = 1; | |
1867 | } else { | |
1868 | result = buv - auv; | |
1869 | if (result <= buv) { | |
1870 | /* result really should be -(auv-buv). as its negation | |
1871 | of true value, need to swap our result flag */ | |
1872 | auvok = !auvok; | |
1873 | result_good = 1; | |
28e5dec8 | 1874 | } |
28e5dec8 JH |
1875 | } |
1876 | } | |
7dca457a NC |
1877 | if (result_good) { |
1878 | SP--; | |
1879 | if (auvok) | |
1880 | SETu( result ); | |
1881 | else { | |
1882 | /* Negate result */ | |
1883 | if (result <= (UV)IV_MIN) | |
53e2bfb7 DM |
1884 | SETi(result == (UV)IV_MIN |
1885 | ? IV_MIN : -(IV)result); | |
7dca457a NC |
1886 | else { |
1887 | /* result valid, but out of range for IV. */ | |
1888 | SETn( -(NV)result ); | |
1889 | } | |
1890 | } | |
1891 | RETURN; | |
1892 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1893 | } |
1894 | } | |
1895 | #endif | |
a0d0e21e | 1896 | { |
6f1401dc | 1897 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1898 | (void)POPs; |
1899 | ||
28e5dec8 JH |
1900 | if (!useleft) { |
1901 | /* left operand is undef, treat as zero - value */ | |
1902 | SETn(-value); | |
1903 | RETURN; | |
1904 | } | |
6f1401dc | 1905 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1906 | RETURN; |
79072805 | 1907 | } |
a0d0e21e | 1908 | } |
79072805 | 1909 | |
b3498293 JH |
1910 | #define IV_BITS (IVSIZE * 8) |
1911 | ||
1912 | static UV S_uv_shift(UV uv, int shift, bool left) | |
1913 | { | |
1914 | if (shift < 0) { | |
1915 | shift = -shift; | |
1916 | left = !left; | |
1917 | } | |
1918 | if (shift >= IV_BITS) { | |
1919 | return 0; | |
1920 | } | |
1921 | return left ? uv << shift : uv >> shift; | |
1922 | } | |
1923 | ||
1924 | static IV S_iv_shift(IV iv, int shift, bool left) | |
1925 | { | |
1926 | if (shift < 0) { | |
1927 | shift = -shift; | |
1928 | left = !left; | |
1929 | } | |
1930 | if (shift >= IV_BITS) { | |
b69687e7 | 1931 | return iv < 0 && !left ? -1 : 0; |
b3498293 JH |
1932 | } |
1933 | return left ? iv << shift : iv >> shift; | |
1934 | } | |
1935 | ||
1936 | #define UV_LEFT_SHIFT(uv, shift) S_uv_shift(uv, shift, TRUE) | |
1937 | #define UV_RIGHT_SHIFT(uv, shift) S_uv_shift(uv, shift, FALSE) | |
1938 | #define IV_LEFT_SHIFT(iv, shift) S_iv_shift(iv, shift, TRUE) | |
1939 | #define IV_RIGHT_SHIFT(iv, shift) S_iv_shift(iv, shift, FALSE) | |
1940 | ||
a0d0e21e LW |
1941 | PP(pp_left_shift) |
1942 | { | |
20b7effb | 1943 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1944 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1945 | svr = POPs; |
1946 | svl = TOPs; | |
a0d0e21e | 1947 | { |
6f1401dc | 1948 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1949 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 1950 | SETi(IV_LEFT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
1951 | } |
1952 | else { | |
b3498293 | 1953 | SETu(UV_LEFT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 1954 | } |
55497cff | 1955 | RETURN; |
79072805 | 1956 | } |
a0d0e21e | 1957 | } |
79072805 | 1958 | |
a0d0e21e LW |
1959 | PP(pp_right_shift) |
1960 | { | |
20b7effb | 1961 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1962 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1963 | svr = POPs; |
1964 | svl = TOPs; | |
a0d0e21e | 1965 | { |
6f1401dc | 1966 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1967 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 1968 | SETi(IV_RIGHT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
1969 | } |
1970 | else { | |
b3498293 | 1971 | SETu(UV_RIGHT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 1972 | } |
a0d0e21e | 1973 | RETURN; |
93a17b20 | 1974 | } |
79072805 LW |
1975 | } |
1976 | ||
a0d0e21e | 1977 | PP(pp_lt) |
79072805 | 1978 | { |
20b7effb | 1979 | dSP; |
33efebe6 DM |
1980 | SV *left, *right; |
1981 | ||
a42d0242 | 1982 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
1983 | right = POPs; |
1984 | left = TOPs; | |
1985 | SETs(boolSV( | |
1986 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1987 | ? (SvIVX(left) < SvIVX(right)) | |
1988 | : (do_ncmp(left, right) == -1) | |
1989 | )); | |
1990 | RETURN; | |
a0d0e21e | 1991 | } |
79072805 | 1992 | |
a0d0e21e LW |
1993 | PP(pp_gt) |
1994 | { | |
20b7effb | 1995 | dSP; |
33efebe6 | 1996 | SV *left, *right; |
1b6737cc | 1997 | |
33efebe6 DM |
1998 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
1999 | right = POPs; | |
2000 | left = TOPs; | |
2001 | SETs(boolSV( | |
2002 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2003 | ? (SvIVX(left) > SvIVX(right)) | |
2004 | : (do_ncmp(left, right) == 1) | |
2005 | )); | |
2006 | RETURN; | |
a0d0e21e LW |
2007 | } |
2008 | ||
2009 | PP(pp_le) | |
2010 | { | |
20b7effb | 2011 | dSP; |
33efebe6 | 2012 | SV *left, *right; |
1b6737cc | 2013 | |
33efebe6 DM |
2014 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
2015 | right = POPs; | |
2016 | left = TOPs; | |
2017 | SETs(boolSV( | |
2018 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2019 | ? (SvIVX(left) <= SvIVX(right)) | |
2020 | : (do_ncmp(left, right) <= 0) | |
2021 | )); | |
2022 | RETURN; | |
a0d0e21e LW |
2023 | } |
2024 | ||
2025 | PP(pp_ge) | |
2026 | { | |
20b7effb | 2027 | dSP; |
33efebe6 DM |
2028 | SV *left, *right; |
2029 | ||
2030 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
2031 | right = POPs; | |
2032 | left = TOPs; | |
2033 | SETs(boolSV( | |
2034 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2035 | ? (SvIVX(left) >= SvIVX(right)) | |
2036 | : ( (do_ncmp(left, right) & 2) == 0) | |
2037 | )); | |
2038 | RETURN; | |
2039 | } | |
1b6737cc | 2040 | |
33efebe6 DM |
2041 | PP(pp_ne) |
2042 | { | |
20b7effb | 2043 | dSP; |
33efebe6 DM |
2044 | SV *left, *right; |
2045 | ||
2046 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
2047 | right = POPs; | |
2048 | left = TOPs; | |
2049 | SETs(boolSV( | |
2050 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2051 | ? (SvIVX(left) != SvIVX(right)) | |
2052 | : (do_ncmp(left, right) != 0) | |
2053 | )); | |
2054 | RETURN; | |
2055 | } | |
1b6737cc | 2056 | |
33efebe6 DM |
2057 | /* compare left and right SVs. Returns: |
2058 | * -1: < | |
2059 | * 0: == | |
2060 | * 1: > | |
2061 | * 2: left or right was a NaN | |
2062 | */ | |
2063 | I32 | |
2064 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2065 | { | |
33efebe6 DM |
2066 | PERL_ARGS_ASSERT_DO_NCMP; |
2067 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2068 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2069 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2070 | if (!SvUOK(left)) { |
2071 | const IV leftiv = SvIVX(left); | |
2072 | if (!SvUOK(right)) { | |
2073 | /* ## IV <=> IV ## */ | |
2074 | const IV rightiv = SvIVX(right); | |
2075 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2076 | } |
33efebe6 DM |
2077 | /* ## IV <=> UV ## */ |
2078 | if (leftiv < 0) | |
2079 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2080 | return -1; | |
2081 | { | |
2082 | const UV rightuv = SvUVX(right); | |
2083 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2084 | } |
28e5dec8 | 2085 | } |
79072805 | 2086 | |
33efebe6 DM |
2087 | if (SvUOK(right)) { |
2088 | /* ## UV <=> UV ## */ | |
2089 | const UV leftuv = SvUVX(left); | |
2090 | const UV rightuv = SvUVX(right); | |
2091 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2092 | } |
33efebe6 DM |
2093 | /* ## UV <=> IV ## */ |
2094 | { | |
2095 | const IV rightiv = SvIVX(right); | |
2096 | if (rightiv < 0) | |
2097 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2098 | return 1; | |
2099 | { | |
2100 | const UV leftuv = SvUVX(left); | |
2101 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2102 | } |
28e5dec8 | 2103 | } |
e5964223 | 2104 | NOT_REACHED; /* NOTREACHED */ |
28e5dec8 JH |
2105 | } |
2106 | #endif | |
a0d0e21e | 2107 | { |
33efebe6 DM |
2108 | NV const rnv = SvNV_nomg(right); |
2109 | NV const lnv = SvNV_nomg(left); | |
2110 | ||
cab190d4 | 2111 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2112 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2113 | return 2; | |
2114 | } | |
2115 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2116 | #else |
33efebe6 DM |
2117 | if (lnv < rnv) |
2118 | return -1; | |
2119 | if (lnv > rnv) | |
2120 | return 1; | |
659c4b96 | 2121 | if (lnv == rnv) |
33efebe6 DM |
2122 | return 0; |
2123 | return 2; | |
cab190d4 | 2124 | #endif |
a0d0e21e | 2125 | } |
79072805 LW |
2126 | } |
2127 | ||
33efebe6 | 2128 | |
a0d0e21e | 2129 | PP(pp_ncmp) |
79072805 | 2130 | { |
20b7effb | 2131 | dSP; |
33efebe6 DM |
2132 | SV *left, *right; |
2133 | I32 value; | |
a42d0242 | 2134 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2135 | right = POPs; |
2136 | left = TOPs; | |
2137 | value = do_ncmp(left, right); | |
2138 | if (value == 2) { | |
3280af22 | 2139 | SETs(&PL_sv_undef); |
79072805 | 2140 | } |
33efebe6 DM |
2141 | else { |
2142 | dTARGET; | |
2143 | SETi(value); | |
2144 | } | |
2145 | RETURN; | |
a0d0e21e | 2146 | } |
79072805 | 2147 | |
b1c05ba5 DM |
2148 | |
2149 | /* also used for: pp_sge() pp_sgt() pp_slt() */ | |
2150 | ||
afd9910b | 2151 | PP(pp_sle) |
a0d0e21e | 2152 | { |
20b7effb | 2153 | dSP; |
79072805 | 2154 | |
afd9910b NC |
2155 | int amg_type = sle_amg; |
2156 | int multiplier = 1; | |
2157 | int rhs = 1; | |
79072805 | 2158 | |
afd9910b NC |
2159 | switch (PL_op->op_type) { |
2160 | case OP_SLT: | |
2161 | amg_type = slt_amg; | |
2162 | /* cmp < 0 */ | |
2163 | rhs = 0; | |
2164 | break; | |
2165 | case OP_SGT: | |
2166 | amg_type = sgt_amg; | |
2167 | /* cmp > 0 */ | |
2168 | multiplier = -1; | |
2169 | rhs = 0; | |
2170 | break; | |
2171 | case OP_SGE: | |
2172 | amg_type = sge_amg; | |
2173 | /* cmp >= 0 */ | |
2174 | multiplier = -1; | |
2175 | break; | |
79072805 | 2176 | } |
79072805 | 2177 | |
6f1401dc | 2178 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2179 | { |
2180 | dPOPTOPssrl; | |
130c5df3 | 2181 | const int cmp = |
5778acb6 | 2182 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2183 | (IN_LC_RUNTIME(LC_COLLATE)) |
2184 | ? sv_cmp_locale_flags(left, right, 0) | |
2185 | : | |
2186 | #endif | |
2187 | sv_cmp_flags(left, right, 0); | |
afd9910b | 2188 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2189 | RETURN; |
2190 | } | |
2191 | } | |
79072805 | 2192 | |
36477c24 | 2193 | PP(pp_seq) |
2194 | { | |
20b7effb | 2195 | dSP; |
6f1401dc | 2196 | tryAMAGICbin_MG(seq_amg, AMGf_set); |
36477c24 | 2197 | { |
2198 | dPOPTOPssrl; | |
078504b2 | 2199 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2200 | RETURN; |
2201 | } | |
2202 | } | |
79072805 | 2203 | |
a0d0e21e | 2204 | PP(pp_sne) |
79072805 | 2205 | { |
20b7effb | 2206 | dSP; |
6f1401dc | 2207 | tryAMAGICbin_MG(sne_amg, AMGf_set); |
a0d0e21e LW |
2208 | { |
2209 | dPOPTOPssrl; | |
078504b2 | 2210 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2211 | RETURN; |
463ee0b2 | 2212 | } |
79072805 LW |
2213 | } |
2214 | ||
a0d0e21e | 2215 | PP(pp_scmp) |
79072805 | 2216 | { |
20b7effb | 2217 | dSP; dTARGET; |
6f1401dc | 2218 | tryAMAGICbin_MG(scmp_amg, 0); |
a0d0e21e LW |
2219 | { |
2220 | dPOPTOPssrl; | |
130c5df3 | 2221 | const int cmp = |
5778acb6 | 2222 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2223 | (IN_LC_RUNTIME(LC_COLLATE)) |
2224 | ? sv_cmp_locale_flags(left, right, 0) | |
2225 | : | |
2226 | #endif | |
2227 | sv_cmp_flags(left, right, 0); | |
bbce6d69 | 2228 | SETi( cmp ); |
a0d0e21e LW |
2229 | RETURN; |
2230 | } | |
2231 | } | |
79072805 | 2232 | |
55497cff | 2233 | PP(pp_bit_and) |
2234 | { | |
20b7effb | 2235 | dSP; dATARGET; |
6f1401dc | 2236 | tryAMAGICbin_MG(band_amg, AMGf_assign); |
a0d0e21e LW |
2237 | { |
2238 | dPOPTOPssrl; | |
4633a7c4 | 2239 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2240 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2241 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2242 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2243 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2244 | SETi(i); |
d0ba1bd2 JH |
2245 | } |
2246 | else { | |
1b6737cc | 2247 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2248 | SETu(u); |
d0ba1bd2 | 2249 | } |
5ee80e13 | 2250 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2251 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2252 | } |
2253 | else { | |
533c011a | 2254 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2255 | SETTARG; |
2256 | } | |
2257 | RETURN; | |
2258 | } | |
2259 | } | |
79072805 | 2260 | |
5d01050a FC |
2261 | PP(pp_nbit_and) |
2262 | { | |
2263 | dSP; | |
636ac8fc | 2264 | tryAMAGICbin_MG(band_amg, AMGf_assign|AMGf_numarg); |
5d01050a FC |
2265 | { |
2266 | dATARGET; dPOPTOPssrl; | |
2267 | if (PL_op->op_private & HINT_INTEGER) { | |
2268 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); | |
2269 | SETi(i); | |
2270 | } | |
2271 | else { | |
2272 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); | |
2273 | SETu(u); | |
2274 | } | |
2275 | } | |
2276 | RETURN; | |
2277 | } | |
2278 | ||
2279 | PP(pp_sbit_and) | |
2280 | { | |
2281 | dSP; | |
2282 | tryAMAGICbin_MG(sband_amg, AMGf_assign); | |
2283 | { | |
2284 | dATARGET; dPOPTOPssrl; | |
2285 | do_vop(OP_BIT_AND, TARG, left, right); | |
2286 | RETSETTARG; | |
2287 | } | |
2288 | } | |
b1c05ba5 DM |
2289 | |
2290 | /* also used for: pp_bit_xor() */ | |
2291 | ||
a0d0e21e LW |
2292 | PP(pp_bit_or) |
2293 | { | |
20b7effb | 2294 | dSP; dATARGET; |
3658c1f1 NC |
2295 | const int op_type = PL_op->op_type; |
2296 | ||
6f1401dc | 2297 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2298 | { |
2299 | dPOPTOPssrl; | |
4633a7c4 | 2300 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2301 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2302 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2303 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2304 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2305 | const IV r = SvIV_nomg(right); | |
2306 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2307 | SETi(result); | |
d0ba1bd2 JH |
2308 | } |
2309 | else { | |
3658c1f1 NC |
2310 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2311 | const UV r = SvUV_nomg(right); | |
2312 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2313 | SETu(result); | |
d0ba1bd2 | 2314 | } |
5ee80e13 | 2315 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2316 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2317 | } |
2318 | else { | |
3658c1f1 | 2319 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2320 | SETTARG; |
2321 | } | |
2322 | RETURN; | |
79072805 | 2323 | } |
a0d0e21e | 2324 | } |
79072805 | 2325 | |
5d01050a FC |
2326 | /* also used for: pp_nbit_xor() */ |
2327 | ||
2328 | PP(pp_nbit_or) | |
2329 | { | |
2330 | dSP; | |
2331 | const int op_type = PL_op->op_type; | |
2332 | ||
2333 | tryAMAGICbin_MG((op_type == OP_NBIT_OR ? bor_amg : bxor_amg), | |
636ac8fc | 2334 | AMGf_assign|AMGf_numarg); |
5d01050a FC |
2335 | { |
2336 | dATARGET; dPOPTOPssrl; | |
2337 | if (PL_op->op_private & HINT_INTEGER) { | |
2338 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); | |
2339 | const IV r = SvIV_nomg(right); | |
2340 | const IV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2341 | SETi(result); | |
2342 | } | |
2343 | else { | |
2344 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); | |
2345 | const UV r = SvUV_nomg(right); | |
2346 | const UV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2347 | SETu(result); | |
2348 | } | |
2349 | } | |
2350 | RETURN; | |
2351 | } | |
2352 | ||
2353 | /* also used for: pp_sbit_xor() */ | |
2354 | ||
2355 | PP(pp_sbit_or) | |
2356 | { | |
2357 | dSP; | |
2358 | const int op_type = PL_op->op_type; | |
2359 | ||
2360 | tryAMAGICbin_MG((op_type == OP_SBIT_OR ? sbor_amg : sbxor_amg), | |
2361 | AMGf_assign); | |
2362 | { | |
2363 | dATARGET; dPOPTOPssrl; | |
2364 | do_vop(op_type == OP_SBIT_OR ? OP_BIT_OR : OP_BIT_XOR, TARG, left, | |
2365 | right); | |
2366 | RETSETTARG; | |
2367 | } | |
2368 | } | |
2369 | ||
1c2b3fd6 FC |
2370 | PERL_STATIC_INLINE bool |
2371 | S_negate_string(pTHX) | |
2372 | { | |
2373 | dTARGET; dSP; | |
2374 | STRLEN len; | |
2375 | const char *s; | |
2376 | SV * const sv = TOPs; | |
2377 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2378 | return FALSE; | |
2379 | s = SvPV_nomg_const(sv, len); | |
2380 | if (isIDFIRST(*s)) { | |
2381 | sv_setpvs(TARG, "-"); | |
2382 | sv_catsv(TARG, sv); | |
2383 | } | |
2384 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2385 | sv_setsv_nomg(TARG, sv); | |
2386 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2387 | } | |
2388 | else return FALSE; | |
245d035e | 2389 | SETTARG; |
1c2b3fd6 FC |
2390 | return TRUE; |
2391 | } | |
2392 | ||
a0d0e21e LW |
2393 | PP(pp_negate) |
2394 | { | |
20b7effb | 2395 | dSP; dTARGET; |
6f1401dc | 2396 | tryAMAGICun_MG(neg_amg, AMGf_numeric); |
1c2b3fd6 | 2397 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2398 | { |
6f1401dc | 2399 | SV * const sv = TOPs; |
a5b92898 | 2400 | |
d96ab1b5 | 2401 | if (SvIOK(sv)) { |
7dbe3150 | 2402 | /* It's publicly an integer */ |
28e5dec8 | 2403 | oops_its_an_int: |
9b0e499b GS |
2404 | if (SvIsUV(sv)) { |
2405 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2406 | /* 2s complement assumption. */ |
d14578b8 KW |
2407 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2408 | IV_MIN */ | |
245d035e | 2409 | return NORMAL; |
9b0e499b GS |
2410 | } |
2411 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2412 | SETi(-SvIVX(sv)); |
245d035e | 2413 | return NORMAL; |
9b0e499b GS |
2414 | } |
2415 | } | |
2416 | else if (SvIVX(sv) != IV_MIN) { | |
2417 | SETi(-SvIVX(sv)); | |
245d035e | 2418 | return NORMAL; |
9b0e499b | 2419 | } |
28e5dec8 JH |
2420 | #ifdef PERL_PRESERVE_IVUV |
2421 | else { | |
2422 | SETu((UV)IV_MIN); | |
245d035e | 2423 | return NORMAL; |
28e5dec8 JH |
2424 | } |
2425 | #endif | |
9b0e499b | 2426 | } |
8a5decd8 | 2427 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2428 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2429 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2430 | goto oops_its_an_int; |
4633a7c4 | 2431 | else |
6f1401dc | 2432 | SETn(-SvNV_nomg(sv)); |
79072805 | 2433 | } |
245d035e | 2434 | return NORMAL; |
79072805 LW |
2435 | } |
2436 | ||
a0d0e21e | 2437 | PP(pp_not) |
79072805 | 2438 | { |
20b7effb | 2439 | dSP; |
6f1401dc | 2440 | tryAMAGICun_MG(not_amg, AMGf_set); |
06c841cf | 2441 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
a0d0e21e | 2442 | return NORMAL; |
79072805 LW |
2443 | } |
2444 | ||
5d01050a FC |
2445 | static void |
2446 | S_scomplement(pTHX_ SV *targ, SV *sv) | |
79072805 | 2447 | { |
eb578fdb KW |
2448 | U8 *tmps; |
2449 | I32 anum; | |
a0d0e21e LW |
2450 | STRLEN len; |
2451 | ||
85b0ee6e FC |
2452 | sv_copypv_nomg(TARG, sv); |
2453 | tmps = (U8*)SvPV_nomg(TARG, len); | |
a0d0e21e | 2454 | anum = len; |
1d68d6cd | 2455 | if (SvUTF8(TARG)) { |
a1ca4561 | 2456 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd | 2457 | STRLEN targlen = 0; |
ba210ebe | 2458 | STRLEN l; |
a1ca4561 YST |
2459 | UV nchar = 0; |
2460 | UV nwide = 0; | |
01f6e806 | 2461 | U8 * const send = tmps + len; |
74d49cd0 TS |
2462 | U8 * const origtmps = tmps; |
2463 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
1d68d6cd | 2464 | |
1d68d6cd | 2465 | while (tmps < send) { |
74d49cd0 TS |
2466 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2467 | tmps += l; | |
5f560d8a | 2468 | targlen += UVCHR_SKIP(~c); |
a1ca4561 YST |
2469 | nchar++; |
2470 | if (c > 0xff) | |
2471 | nwide++; | |
1d68d6cd SC |
2472 | } |
2473 | ||
2474 | /* Now rewind strings and write them. */ | |
74d49cd0 | 2475 | tmps = origtmps; |
a1ca4561 YST |
2476 | |
2477 | if (nwide) { | |
01f6e806 AL |
2478 | U8 *result; |
2479 | U8 *p; | |
2480 | ||
74d49cd0 | 2481 | Newx(result, targlen + 1, U8); |
01f6e806 | 2482 | p = result; |
a1ca4561 | 2483 | while (tmps < send) { |
74d49cd0 TS |
2484 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2485 | tmps += l; | |
01f6e806 | 2486 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 | 2487 | } |
01f6e806 | 2488 | *p = '\0'; |
c1c21316 NC |
2489 | sv_usepvn_flags(TARG, (char*)result, targlen, |
2490 | SV_HAS_TRAILING_NUL); | |
a1ca4561 YST |
2491 | SvUTF8_on(TARG); |
2492 | } | |
2493 | else { | |
01f6e806 AL |
2494 | U8 *result; |
2495 | U8 *p; | |
2496 | ||
74d49cd0 | 2497 | Newx(result, nchar + 1, U8); |
01f6e806 | 2498 | p = result; |
a1ca4561 | 2499 | while (tmps < send) { |
74d49cd0 TS |
2500 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2501 | tmps += l; | |
01f6e806 | 2502 | *p++ = ~c; |
a1ca4561 | 2503 | } |
01f6e806 | 2504 | *p = '\0'; |
c1c21316 | 2505 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
d0a21e00 | 2506 | SvUTF8_off(TARG); |
1d68d6cd | 2507 | } |
5d01050a | 2508 | return; |
1d68d6cd | 2509 | } |
a0d0e21e | 2510 | #ifdef LIBERAL |
51723571 | 2511 | { |
eb578fdb | 2512 | long *tmpl; |
51723571 JH |
2513 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2514 | *tmps = ~*tmps; | |
2515 | tmpl = (long*)tmps; | |
bb7a0f54 | 2516 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2517 | *tmpl = ~*tmpl; |
2518 | tmps = (U8*)tmpl; | |
2519 | } | |
a0d0e21e LW |
2520 | #endif |
2521 | for ( ; anum > 0; anum--, tmps++) | |
2522 | *tmps = ~*tmps; | |
5d01050a FC |
2523 | } |
2524 | ||
2525 | PP(pp_complement) | |
2526 | { | |
2527 | dSP; dTARGET; | |
2528 | tryAMAGICun_MG(compl_amg, AMGf_numeric); | |
2529 | { | |
2530 | dTOPss; | |
2531 | if (SvNIOKp(sv)) { | |
2532 | if (PL_op->op_private & HINT_INTEGER) { | |
2533 | const IV i = ~SvIV_nomg(sv); | |
2534 | SETi(i); | |
2535 | } | |
2536 | else { | |
2537 | const UV u = ~SvUV_nomg(sv); | |
2538 | SETu(u); | |
2539 | } | |
2540 | } | |
2541 | else { | |
2542 | S_scomplement(aTHX_ TARG, sv); | |
ec93b65f | 2543 | SETTARG; |
a0d0e21e | 2544 | } |
24840750 | 2545 | return NORMAL; |
5d01050a FC |
2546 | } |
2547 | } | |
2548 | ||
2549 | PP(pp_ncomplement) | |
2550 | { | |
2551 | dSP; | |
636ac8fc | 2552 | tryAMAGICun_MG(compl_amg, AMGf_numeric|AMGf_numarg); |
5d01050a FC |
2553 | { |
2554 | dTARGET; dTOPss; | |
2555 | if (PL_op->op_private & HINT_INTEGER) { | |
2556 | const IV i = ~SvIV_nomg(sv); | |
2557 | SETi(i); | |
2558 | } | |
2559 | else { | |
2560 | const UV u = ~SvUV_nomg(sv); | |
2561 | SETu(u); | |
2562 | } | |
2563 | } | |
2564 | return NORMAL; | |
2565 | } | |
2566 | ||
2567 | PP(pp_scomplement) | |
2568 | { | |
2569 | dSP; | |
2570 | tryAMAGICun_MG(scompl_amg, AMGf_numeric); | |
2571 | { | |
2572 | dTARGET; dTOPss; | |
2573 | S_scomplement(aTHX_ TARG, sv); | |
2574 | SETTARG; | |
2575 | return NORMAL; | |
a0d0e21e | 2576 | } |
79072805 LW |
2577 | } |
2578 | ||
a0d0e21e LW |
2579 | /* integer versions of some of the above */ |
2580 | ||
a0d0e21e | 2581 | PP(pp_i_multiply) |
79072805 | 2582 | { |
20b7effb | 2583 | dSP; dATARGET; |
6f1401dc | 2584 | tryAMAGICbin_MG(mult_amg, AMGf_assign); |
a0d0e21e | 2585 | { |
6f1401dc | 2586 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2587 | SETi( left * right ); |
2588 | RETURN; | |
2589 | } | |
79072805 LW |
2590 | } |
2591 | ||
a0d0e21e | 2592 | PP(pp_i_divide) |
79072805 | 2593 | { |
85935d8e | 2594 | IV num; |
20b7effb | 2595 | dSP; dATARGET; |
6f1401dc | 2596 | tryAMAGICbin_MG(div_amg, AMGf_assign); |
a0d0e21e | 2597 | { |
6f1401dc | 2598 | dPOPTOPssrl; |
85935d8e | 2599 | IV value = SvIV_nomg(right); |
a0d0e21e | 2600 | if (value == 0) |
ece1bcef | 2601 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2602 | num = SvIV_nomg(left); |
a0cec769 YST |
2603 | |
2604 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2605 | if (value == -1) | |
2606 | value = - num; | |
2607 | else | |
2608 | value = num / value; | |
6f1401dc | 2609 | SETi(value); |
a0d0e21e LW |
2610 | RETURN; |
2611 | } | |
79072805 LW |
2612 | } |
2613 | ||
bf3d06aa JC |
2614 | #if defined(__GLIBC__) && IVSIZE == 8 && !defined(PERL_DEBUG_READONLY_OPS) \ |
2615 | && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8)) | |
224ec323 JH |
2616 | STATIC |
2617 | PP(pp_i_modulo_0) | |
befad5d1 NC |
2618 | #else |
2619 | PP(pp_i_modulo) | |
2620 | #endif | |
224ec323 JH |
2621 | { |
2622 | /* This is the vanilla old i_modulo. */ | |
20b7effb | 2623 | dSP; dATARGET; |
6f1401dc | 2624 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2625 | { |
6f1401dc | 2626 | dPOPTOPiirl_nomg; |
224ec323 JH |
2627 | if (!right) |
2628 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2629 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2630 | if (right == -1) | |
2631 | SETi( 0 ); | |
2632 | else | |
2633 | SETi( left % right ); | |
224ec323 JH |
2634 | RETURN; |
2635 | } | |
2636 | } | |
2637 | ||
bf3d06aa JC |
2638 | #if defined(__GLIBC__) && IVSIZE == 8 && !defined(PERL_DEBUG_READONLY_OPS) \ |
2639 | && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8)) | |
224ec323 JH |
2640 | STATIC |
2641 | PP(pp_i_modulo_1) | |
befad5d1 | 2642 | |
224ec323 | 2643 | { |
224ec323 | 2644 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2645 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2646 | * See below for pp_i_modulo. */ |
20b7effb | 2647 | dSP; dATARGET; |
6f1401dc | 2648 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2649 | { |
6f1401dc | 2650 | dPOPTOPiirl_nomg; |
224ec323 JH |
2651 | if (!right) |
2652 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2653 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2654 | if (right == -1) | |
2655 | SETi( 0 ); | |
2656 | else | |
2657 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2658 | RETURN; |
2659 | } | |
224ec323 JH |
2660 | } |
2661 | ||
a0d0e21e | 2662 | PP(pp_i_modulo) |
79072805 | 2663 | { |
6f1401dc DM |
2664 | dVAR; dSP; dATARGET; |
2665 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2666 | { |
6f1401dc | 2667 | dPOPTOPiirl_nomg; |
224ec323 JH |
2668 | if (!right) |
2669 | DIE(aTHX_ "Illegal modulus zero"); | |
2670 | /* The assumption is to use hereafter the old vanilla version... */ | |
2671 | PL_op->op_ppaddr = | |
2672 | PL_ppaddr[OP_I_MODULO] = | |
1c127fab | 2673 | Perl_pp_i_modulo_0; |
224ec323 | 2674 | /* .. but if we have glibc, we might have a buggy _moddi3 |
bf3d06aa | 2675 | * (at least glibc 2.2.5 is known to have this bug), in other |
224ec323 JH |
2676 | * words our integer modulus with negative quad as the second |
2677 | * argument might be broken. Test for this and re-patch the | |
2678 | * opcode dispatch table if that is the case, remembering to | |
2679 | * also apply the workaround so that this first round works | |
2680 | * right, too. See [perl #9402] for more information. */ | |
224ec323 JH |
2681 | { |
2682 | IV l = 3; | |
2683 | IV r = -10; | |
2684 | /* Cannot do this check with inlined IV constants since | |
2685 | * that seems to work correctly even with the buggy glibc. */ | |
2686 | if (l % r == -3) { | |
2687 | /* Yikes, we have the bug. | |
2688 | * Patch in the workaround version. */ | |
2689 | PL_op->op_ppaddr = | |
2690 | PL_ppaddr[OP_I_MODULO] = | |
2691 | &Perl_pp_i_modulo_1; | |
2692 | /* Make certain we work right this time, too. */ | |
32fdb065 | 2693 | right = PERL_ABS(right); |
224ec323 JH |
2694 | } |
2695 | } | |
a0cec769 YST |
2696 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2697 | if (right == -1) | |
2698 | SETi( 0 ); | |
2699 | else | |
2700 | SETi( left % right ); | |
224ec323 JH |
2701 | RETURN; |
2702 | } | |
79072805 | 2703 | } |
befad5d1 | 2704 | #endif |
79072805 | 2705 | |
a0d0e21e | 2706 | PP(pp_i_add) |
79072805 | 2707 | { |
20b7effb | 2708 | dSP; dATARGET; |
6f1401dc | 2709 | tryAMAGICbin_MG(add_amg, AMGf_assign); |
a0d0e21e | 2710 | { |
6f1401dc | 2711 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2712 | SETi( left + right ); |
2713 | RETURN; | |
79072805 | 2714 | } |
79072805 LW |
2715 | } |
2716 | ||
a0d0e21e | 2717 | PP(pp_i_subtract) |
79072805 | 2718 | { |
20b7effb | 2719 | dSP; dATARGET; |
6f1401dc | 2720 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); |
a0d0e21e | 2721 | { |
6f1401dc | 2722 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2723 | SETi( left - right ); |
2724 | RETURN; | |
79072805 | 2725 | } |
79072805 LW |
2726 | } |
2727 | ||
a0d0e21e | 2728 | PP(pp_i_lt) |
79072805 | 2729 | { |
20b7effb | 2730 | dSP; |
6f1401dc | 2731 | tryAMAGICbin_MG(lt_amg, AMGf_set); |
a0d0e21e | 2732 | { |
96b6b87f | 2733 | dPOPTOPiirl_nomg; |
54310121 | 2734 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2735 | RETURN; |
2736 | } | |
79072805 LW |
2737 | } |
2738 | ||
a0d0e21e | 2739 | PP(pp_i_gt) |
79072805 | 2740 | { |
20b7effb | 2741 | dSP; |
6f1401dc | 2742 | tryAMAGICbin_MG(gt_amg, AMGf_set); |
a0d0e21e | 2743 | { |
96b6b87f | 2744 | dPOPTOPiirl_nomg; |
54310121 | 2745 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2746 | RETURN; |
2747 | } | |
79072805 LW |
2748 | } |
2749 | ||
a0d0e21e | 2750 | PP(pp_i_le) |
79072805 | 2751 | { |
20b7effb | 2752 | dSP; |
6f1401dc | 2753 | tryAMAGICbin_MG(le_amg, AMGf_set); |
a0d0e21e | 2754 | { |
96b6b87f | 2755 | dPOPTOPiirl_nomg; |
54310121 | 2756 | SETs(boolSV(left <= right)); |
a0d0e21e | 2757 | RETURN; |
85e6fe83 | 2758 | } |
79072805 LW |
2759 | } |
2760 | ||
a0d0e21e | 2761 | PP(pp_i_ge) |
79072805 | 2762 | { |
20b7effb | 2763 | dSP; |
6f1401dc | 2764 | tryAMAGICbin_MG(ge_amg, AMGf_set); |
a0d0e21e | 2765 | { |
96b6b87f | 2766 | dPOPTOPiirl_nomg; |
54310121 | 2767 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2768 | RETURN; |
2769 | } | |
79072805 LW |
2770 | } |
2771 | ||
a0d0e21e | 2772 | PP(pp_i_eq) |
79072805 | 2773 | { |
20b7effb | 2774 | dSP; |
6f1401dc | 2775 | tryAMAGICbin_MG(eq_amg, AMGf_set); |
a0d0e21e | 2776 | { |
96b6b87f | 2777 | dPOPTOPiirl_nomg; |
54310121 | 2778 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2779 | RETURN; |
2780 | } | |
79072805 LW |
2781 | } |
2782 | ||
a0d0e21e | 2783 | PP(pp_i_ne) |
79072805 | 2784 | { |
20b7effb | 2785 | dSP; |
6f1401dc | 2786 | tryAMAGICbin_MG(ne_amg, AMGf_set); |
a0d0e21e | 2787 | { |
96b6b87f | 2788 | dPOPTOPiirl_nomg; |
54310121 | 2789 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2790 | RETURN; |
2791 | } | |
79072805 LW |
2792 | } |
2793 | ||
a0d0e21e | 2794 | PP(pp_i_ncmp) |
79072805 | 2795 | { |
20b7effb | 2796 | dSP; dTARGET; |
6f1401dc | 2797 | tryAMAGICbin_MG(ncmp_amg, 0); |
a0d0e21e | 2798 | { |
96b6b87f | 2799 | dPOPTOPiirl_nomg; |
a0d0e21e | 2800 | I32 value; |
79072805 | 2801 | |
a0d0e21e | 2802 | if (left > right) |
79072805 | 2803 | value = 1; |
a0d0e21e | 2804 | else if (left < right) |
79072805 | 2805 | value = -1; |
a0d0e21e | 2806 | else |
79072805 | 2807 | value = 0; |
a0d0e21e LW |
2808 | SETi(value); |
2809 | RETURN; | |
79072805 | 2810 | } |
85e6fe83 LW |
2811 | } |
2812 | ||
2813 | PP(pp_i_negate) | |
2814 | { | |
20b7effb | 2815 | dSP; dTARGET; |
6f1401dc | 2816 | tryAMAGICun_MG(neg_amg, 0); |
1c2b3fd6 | 2817 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2818 | { |
2819 | SV * const sv = TOPs; | |
2820 | IV const i = SvIV_nomg(sv); | |
2821 | SETi(-i); | |
ae642386 | 2822 | return NORMAL; |
6f1401dc | 2823 | } |
85e6fe83 LW |
2824 | } |
2825 | ||
79072805 LW |
2826 | /* High falutin' math. */ |
2827 | ||
2828 | PP(pp_atan2) | |
2829 | { | |
20b7effb | 2830 | dSP; dTARGET; |
6f1401dc | 2831 | tryAMAGICbin_MG(atan2_amg, 0); |
a0d0e21e | 2832 | { |
096c060c | 2833 | dPOPTOPnnrl_nomg; |
a1021d57 | 2834 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2835 | RETURN; |
2836 | } | |
79072805 LW |
2837 | } |
2838 | ||
b1c05ba5 DM |
2839 | |
2840 | /* also used for: pp_cos() pp_exp() pp_log() pp_sqrt() */ | |
2841 | ||
79072805 LW |
2842 | PP(pp_sin) |
2843 | { | |
20b7effb | 2844 | dSP; dTARGET; |
af71714e | 2845 | int amg_type = fallback_amg; |
71302fe3 | 2846 | const char *neg_report = NULL; |
71302fe3 NC |
2847 | const int op_type = PL_op->op_type; |
2848 | ||
2849 | switch (op_type) { | |
af71714e JH |
2850 | case OP_SIN: amg_type = sin_amg; break; |
2851 | case OP_COS: amg_type = cos_amg; break; | |
2852 | case OP_EXP: amg_type = exp_amg; break; | |
2853 | case OP_LOG: amg_type = log_amg; neg_report = "log"; break; | |
2854 | case OP_SQRT: amg_type = sqrt_amg; neg_report = "sqrt"; break; | |
a0d0e21e | 2855 | } |
79072805 | 2856 | |
af71714e | 2857 | assert(amg_type != fallback_amg); |
6f1401dc DM |
2858 | |
2859 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2860 | { |
8c78ed36 | 2861 | SV * const arg = TOPs; |
6f1401dc | 2862 | const NV value = SvNV_nomg(arg); |
f256868e | 2863 | NV result = NV_NAN; |
af71714e | 2864 | if (neg_report) { /* log or sqrt */ |
a3463d96 DD |
2865 | if ( |
2866 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
2867 | ! Perl_isnan(value) && | |
2868 | #endif | |
2869 | (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0))) { | |
71302fe3 | 2870 | SET_NUMERIC_STANDARD(); |
dcbac5bb | 2871 | /* diag_listed_as: Can't take log of %g */ |
71302fe3 NC |
2872 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); |
2873 | } | |
2874 | } | |
af71714e | 2875 | switch (op_type) { |
f256868e | 2876 | default: |
af71714e JH |
2877 | case OP_SIN: result = Perl_sin(value); break; |
2878 | case OP_COS: result = Perl_cos(value); break; | |
2879 | case OP_EXP: result = Perl_exp(value); break; | |
2880 | case OP_LOG: result = Perl_log(value); break; | |
2881 | case OP_SQRT: result = Perl_sqrt(value); break; | |
2882 | } | |
8c78ed36 FC |
2883 | SETn(result); |
2884 | return NORMAL; | |
a0d0e21e | 2885 | } |
79072805 LW |
2886 | } |
2887 | ||
56cb0a1c AD |
2888 | /* Support Configure command-line overrides for rand() functions. |
2889 | After 5.005, perhaps we should replace this by Configure support | |
2890 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2891 | compatibility by calling rand() but allow the user to override it. | |
2892 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2893 | */ | |
85ab1d1d JH |
2894 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2895 | in addition to rand(). So the overrides should not be needed any more. | |
2896 | --Jarkko Hietaniemi 27 September 1998 | |
2897 | */ | |
2898 | ||
79072805 LW |
2899 | PP(pp_rand) |
2900 | { | |
80252599 | 2901 | if (!PL_srand_called) { |
85ab1d1d | 2902 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2903 | PL_srand_called = TRUE; |
93dc8474 | 2904 | } |
fdf4dddd DD |
2905 | { |
2906 | dSP; | |
2907 | NV value; | |
fdf4dddd DD |
2908 | |
2909 | if (MAXARG < 1) | |
7e9044f9 FC |
2910 | { |
2911 | EXTEND(SP, 1); | |
fdf4dddd | 2912 | value = 1.0; |
7e9044f9 | 2913 | } |
fdf4dddd DD |
2914 | else { |
2915 | SV * const sv = POPs; | |
2916 | if(!sv) | |
2917 | value = 1.0; | |
2918 | else | |
2919 | value = SvNV(sv); | |
2920 | } | |
2921 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
a3463d96 DD |
2922 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
2923 | if (! Perl_isnan(value) && value == 0.0) | |
2924 | #else | |
659c4b96 | 2925 | if (value == 0.0) |
a3463d96 | 2926 | #endif |
fdf4dddd DD |
2927 | value = 1.0; |
2928 | { | |
2929 | dTARGET; | |
2930 | PUSHs(TARG); | |
2931 | PUTBACK; | |
2932 | value *= Drand01(); | |
2933 | sv_setnv_mg(TARG, value); | |
2934 | } | |
2935 | } | |
2936 | return NORMAL; | |
79072805 LW |
2937 | } |
2938 | ||
2939 | PP(pp_srand) | |
2940 | { | |
20b7effb | 2941 | dSP; dTARGET; |
f914a682 JL |
2942 | UV anum; |
2943 | ||
0a5f3363 | 2944 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
2945 | SV *top; |
2946 | char *pv; | |
2947 | STRLEN len; | |
2948 | int flags; | |
2949 | ||
2950 | top = POPs; | |
2951 | pv = SvPV(top, len); | |
2952 | flags = grok_number(pv, len, &anum); | |
2953 | ||
2954 | if (!(flags & IS_NUMBER_IN_UV)) { | |
2955 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
2956 | "Integer overflow in srand"); | |
2957 | anum = UV_MAX; | |
2958 | } | |
2959 | } | |
2960 | else { | |
2961 | anum = seed(); | |
2962 | } | |
2963 | ||
85ab1d1d | 2964 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2965 | PL_srand_called = TRUE; |
da1010ec NC |
2966 | if (anum) |
2967 | XPUSHu(anum); | |
2968 | else { | |
2969 | /* Historically srand always returned true. We can avoid breaking | |
2970 | that like this: */ | |
2971 | sv_setpvs(TARG, "0 but true"); | |
2972 | XPUSHTARG; | |
2973 | } | |
83832992 | 2974 | RETURN; |
79072805 LW |
2975 | } |
2976 | ||
79072805 LW |
2977 | PP(pp_int) |
2978 | { | |
20b7effb | 2979 | dSP; dTARGET; |
6f1401dc | 2980 | tryAMAGICun_MG(int_amg, AMGf_numeric); |
774d564b | 2981 | { |
6f1401dc DM |
2982 | SV * const sv = TOPs; |
2983 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2984 | /* XXX it's arguable that compiler casting to IV might be subtly |
2985 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2986 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2987 | relying on floating point to be accurate is a bug. */ | |
2988 | ||
c781a409 | 2989 | if (!SvOK(sv)) { |
922c4365 | 2990 | SETu(0); |
c781a409 RD |
2991 | } |
2992 | else if (SvIOK(sv)) { | |
2993 | if (SvIsUV(sv)) | |
6f1401dc | 2994 | SETu(SvUV_nomg(sv)); |
c781a409 | 2995 | else |
28e5dec8 | 2996 | SETi(iv); |
c781a409 | 2997 | } |
c781a409 | 2998 | else { |
6f1401dc | 2999 | const NV value = SvNV_nomg(sv); |
b9d05018 FC |
3000 | if (UNLIKELY(Perl_isinfnan(value))) |
3001 | SETn(value); | |
5bf8b78e | 3002 | else if (value >= 0.0) { |
28e5dec8 JH |
3003 | if (value < (NV)UV_MAX + 0.5) { |
3004 | SETu(U_V(value)); | |
3005 | } else { | |
059a1014 | 3006 | SETn(Perl_floor(value)); |
28e5dec8 | 3007 | } |
1048ea30 | 3008 | } |
28e5dec8 JH |
3009 | else { |
3010 | if (value > (NV)IV_MIN - 0.5) { | |
3011 | SETi(I_V(value)); | |
3012 | } else { | |
1bbae031 | 3013 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
3014 | } |
3015 | } | |
774d564b | 3016 | } |
79072805 | 3017 | } |
699e9491 | 3018 | return NORMAL; |
79072805 LW |
3019 | } |
3020 | ||
463ee0b2 LW |
3021 | PP(pp_abs) |
3022 | { | |
20b7effb | 3023 | dSP; dTARGET; |
6f1401dc | 3024 | tryAMAGICun_MG(abs_amg, AMGf_numeric); |
a0d0e21e | 3025 | { |
6f1401dc | 3026 | SV * const sv = TOPs; |
28e5dec8 | 3027 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 3028 | const IV iv = SvIV_nomg(sv); |
a227d84d | 3029 | |
800401ee | 3030 | if (!SvOK(sv)) { |
922c4365 | 3031 | SETu(0); |
800401ee JH |
3032 | } |
3033 | else if (SvIOK(sv)) { | |
28e5dec8 | 3034 | /* IVX is precise */ |
800401ee | 3035 | if (SvIsUV(sv)) { |
6f1401dc | 3036 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
3037 | } else { |
3038 | if (iv >= 0) { | |
3039 | SETi(iv); | |
3040 | } else { | |
3041 | if (iv != IV_MIN) { | |
3042 | SETi(-iv); | |
3043 | } else { | |
3044 | /* 2s complement assumption. Also, not really needed as | |
3045 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
3046 | SETu(IV_MIN); | |
3047 | } | |
a227d84d | 3048 | } |
28e5dec8 JH |
3049 | } |
3050 | } else{ | |
6f1401dc | 3051 | const NV value = SvNV_nomg(sv); |
774d564b | 3052 | if (value < 0.0) |
1b6737cc | 3053 | SETn(-value); |
a4474c9e DD |
3054 | else |
3055 | SETn(value); | |
774d564b | 3056 | } |
a0d0e21e | 3057 | } |
067b7929 | 3058 | return NORMAL; |
463ee0b2 LW |
3059 | } |
3060 | ||
b1c05ba5 DM |
3061 | |
3062 | /* also used for: pp_hex() */ | |
3063 | ||
79072805 LW |
3064 | PP(pp_oct) |
3065 | { | |
20b7effb | 3066 | dSP; dTARGET; |
5c144d81 | 3067 | const char *tmps; |
53305cf1 | 3068 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 3069 | STRLEN len; |
53305cf1 NC |
3070 | NV result_nv; |
3071 | UV result_uv; | |
4e51bcca | 3072 | SV* const sv = TOPs; |
79072805 | 3073 | |
349d4f2f | 3074 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
3075 | if (DO_UTF8(sv)) { |
3076 | /* If Unicode, try to downgrade | |
3077 | * If not possible, croak. */ | |
1b6737cc | 3078 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
3079 | |
3080 | SvUTF8_on(tsv); | |
3081 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 3082 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 3083 | } |
daa2adfd NC |
3084 | if (PL_op->op_type == OP_HEX) |
3085 | goto hex; | |
3086 | ||
6f894ead | 3087 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 3088 | tmps++, len--; |
9e24b6e2 | 3089 | if (*tmps == '0') |
53305cf1 | 3090 | tmps++, len--; |
305b8651 | 3091 | if (isALPHA_FOLD_EQ(*tmps, 'x')) { |
daa2adfd | 3092 | hex: |
53305cf1 | 3093 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 3094 | } |
305b8651 | 3095 | else if (isALPHA_FOLD_EQ(*tmps, 'b')) |
53305cf1 | 3096 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 3097 | else |
53305cf1 NC |
3098 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
3099 | ||
3100 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
4e51bcca | 3101 | SETn(result_nv); |
53305cf1 NC |
3102 | } |
3103 | else { | |
4e51bcca | 3104 | SETu(result_uv); |
53305cf1 | 3105 | } |
4e51bcca | 3106 | return NORMAL; |
79072805 LW |
3107 | } |
3108 | ||
3109 | /* String stuff. */ | |
3110 | ||
3111 | PP(pp_length) | |
3112 | { | |
20b7effb | 3113 | dSP; dTARGET; |
0bd48802 | 3114 | SV * const sv = TOPs; |
a0ed51b3 | 3115 | |
7776003e DD |
3116 | U32 in_bytes = IN_BYTES; |
3117 | /* simplest case shortcut */ | |
3118 | /* turn off SVf_UTF8 in tmp flags if HINT_BYTES on*/ | |
3119 | U32 svflags = (SvFLAGS(sv) ^ (in_bytes << 26)) & (SVf_POK|SVs_GMG|SVf_UTF8); | |
6d59e610 | 3120 | STATIC_ASSERT_STMT(HINT_BYTES == 0x00000008 && SVf_UTF8 == 0x20000000 && (SVf_UTF8 == HINT_BYTES << 26)); |
7776003e DD |
3121 | SETs(TARG); |
3122 | ||
3123 | if(LIKELY(svflags == SVf_POK)) | |
3124 | goto simple_pv; | |
3125 | if(svflags & SVs_GMG) | |
3126 | mg_get(sv); | |
0f43fd57 | 3127 | if (SvOK(sv)) { |
7776003e DD |
3128 | if (!IN_BYTES) /* reread to avoid using an C auto/register */ |
3129 | sv_setiv(TARG, (IV)sv_len_utf8_nomg(sv)); | |
9f621bb0 | 3130 | else |
0f43fd57 FC |
3131 | { |
3132 | STRLEN len; | |
7776003e DD |
3133 | /* unrolled SvPV_nomg_const(sv,len) */ |
3134 | if(SvPOK_nog(sv)){ | |
3135 | simple_pv: | |
3136 | len = SvCUR(sv); | |
3137 | } else { | |
3138 | (void)sv_2pv_flags(sv, &len, 0|SV_CONST_RETURN); | |
3139 | } | |
3140 | sv_setiv(TARG, (IV)(len)); | |
0f43fd57 | 3141 | } |
656266fc | 3142 | } else { |
9407f9c1 DL |
3143 | if (!SvPADTMP(TARG)) { |
3144 | sv_setsv_nomg(TARG, &PL_sv_undef); | |
7776003e DD |
3145 | } else { /* TARG is on stack at this point and is overwriten by SETs. |
3146 | This branch is the odd one out, so put TARG by default on | |
3147 | stack earlier to let local SP go out of liveness sooner */ | |
3148 | SETs(&PL_sv_undef); | |
3149 | goto no_set_magic; | |
3150 | } | |
92331800 | 3151 | } |
7776003e DD |
3152 | SvSETMAGIC(TARG); |
3153 | no_set_magic: | |
3154 | return NORMAL; /* no putback, SP didn't move in this opcode */ | |
79072805 LW |
3155 | } |
3156 | ||
83f78d1a FC |
3157 | /* Returns false if substring is completely outside original string. |
3158 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
3159 | always be true for an explicit 0. | |
3160 | */ | |
3161 | bool | |
ddeaf645 DD |
3162 | Perl_translate_substr_offsets( STRLEN curlen, IV pos1_iv, |
3163 | bool pos1_is_uv, IV len_iv, | |
3164 | bool len_is_uv, STRLEN *posp, | |
3165 | STRLEN *lenp) | |
83f78d1a FC |
3166 | { |
3167 | IV pos2_iv; | |
3168 | int pos2_is_uv; | |
3169 | ||
3170 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
3171 | ||
3172 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
3173 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3174 | pos1_iv += curlen; | |
3175 | } | |
3176 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
3177 | return FALSE; | |
3178 | ||
3179 | if (len_iv || len_is_uv) { | |
3180 | if (!len_is_uv && len_iv < 0) { | |
3181 | pos2_iv = curlen + len_iv; | |
3182 | if (curlen) | |
3183 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3184 | else | |
3185 | pos2_is_uv = 0; | |
3186 | } else { /* len_iv >= 0 */ | |
3187 | if (!pos1_is_uv && pos1_iv < 0) { | |
3188 | pos2_iv = pos1_iv + len_iv; | |
3189 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3190 | } else { | |
3191 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3192 | pos2_iv = curlen; | |
3193 | else | |
3194 | pos2_iv = pos1_iv+len_iv; | |
3195 | pos2_is_uv = 1; | |
3196 | } | |
3197 | } | |
3198 | } | |
3199 | else { | |
3200 | pos2_iv = curlen; | |
3201 | pos2_is_uv = 1; | |
3202 | } | |
3203 | ||
3204 | if (!pos2_is_uv && pos2_iv < 0) { | |
3205 | if (!pos1_is_uv && pos1_iv < 0) | |
3206 | return FALSE; | |
3207 | pos2_iv = 0; | |
3208 | } | |
3209 | else if (!pos1_is_uv && pos1_iv < 0) | |
3210 | pos1_iv = 0; | |
3211 | ||
3212 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3213 | pos2_iv = pos1_iv; | |
3214 | if ((UV)pos2_iv > curlen) | |
3215 | pos2_iv = curlen; | |
3216 | ||
3217 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3218 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3219 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3220 | ||
3221 | return TRUE; | |
3222 | } | |
3223 | ||
79072805 LW |
3224 | PP(pp_substr) |
3225 | { | |
20b7effb | 3226 | dSP; dTARGET; |
79072805 | 3227 | SV *sv; |
463ee0b2 | 3228 | STRLEN curlen; |
9402d6ed | 3229 | STRLEN utf8_curlen; |
777f7c56 EB |
3230 | SV * pos_sv; |
3231 | IV pos1_iv; | |
3232 | int pos1_is_uv; | |
777f7c56 EB |
3233 | SV * len_sv; |
3234 | IV len_iv = 0; | |
83f78d1a | 3235 | int len_is_uv = 0; |
24fcb59f | 3236 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3237 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3238 | const char *tmps; |
9402d6ed | 3239 | SV *repl_sv = NULL; |
cbbf8932 | 3240 | const char *repl = NULL; |
7b8d334a | 3241 | STRLEN repl_len; |
7bc95ae1 | 3242 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3243 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3244 | |
78f9721b SM |
3245 | if (num_args > 2) { |
3246 | if (num_args > 3) { | |
24fcb59f | 3247 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3248 | } |
3249 | if ((len_sv = POPs)) { | |
3250 | len_iv = SvIV(len_sv); | |
83f78d1a | 3251 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3252 | } |
7bc95ae1 | 3253 | else num_args--; |
5d82c453 | 3254 | } |
777f7c56 EB |
3255 | pos_sv = POPs; |
3256 | pos1_iv = SvIV(pos_sv); | |
3257 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3258 | sv = POPs; |
24fcb59f FC |
3259 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3260 | assert(!repl_sv); | |
3261 | repl_sv = POPs; | |
3262 | } | |
6582db62 | 3263 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3264 | SV * ret; |
3265 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3266 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3267 | LvTYPE(ret) = 'x'; | |
3268 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3269 | LvTARGOFF(ret) = | |
3270 | pos1_is_uv || pos1_iv >= 0 | |
3271 | ? (STRLEN)(UV)pos1_iv | |
3272 | : (LvFLAGS(ret) |= 1, (STRLEN)(UV)-pos1_iv); | |
3273 | LvTARGLEN(ret) = | |
3274 | len_is_uv || len_iv > 0 | |
3275 | ? (STRLEN)(UV)len_iv | |
3276 | : (LvFLAGS(ret) |= 2, (STRLEN)(UV)-len_iv); | |
3277 | ||
83f78d1a FC |
3278 | PUSHs(ret); /* avoid SvSETMAGIC here */ |
3279 | RETURN; | |
a74fb2cd | 3280 | } |
6582db62 FC |
3281 | if (repl_sv) { |
3282 | repl = SvPV_const(repl_sv, repl_len); | |
3283 | SvGETMAGIC(sv); | |
3284 | if (SvROK(sv)) | |
3285 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3286 | "Attempt to use reference as lvalue in substr" | |
3287 | ); | |
3288 | tmps = SvPV_force_nomg(sv, curlen); | |
3289 | if (DO_UTF8(repl_sv) && repl_len) { | |
3290 | if (!DO_UTF8(sv)) { | |
01680ee9 | 3291 | sv_utf8_upgrade_nomg(sv); |
6582db62 FC |
3292 | curlen = SvCUR(sv); |
3293 | } | |
3294 | } | |
3295 | else if (DO_UTF8(sv)) | |
3296 | repl_need_utf8_upgrade = TRUE; | |
3297 | } | |
3298 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3299 | if (DO_UTF8(sv)) { |
0d788f38 | 3300 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3301 | if (utf8_curlen == curlen) |
3302 | utf8_curlen = 0; | |
a0ed51b3 | 3303 | else |
9402d6ed | 3304 | curlen = utf8_curlen; |
a0ed51b3 | 3305 | } |
d1c2b58a | 3306 | else |
9402d6ed | 3307 | utf8_curlen = 0; |
a0ed51b3 | 3308 | |
83f78d1a FC |
3309 | { |
3310 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3311 | |
83f78d1a FC |
3312 | if (!translate_substr_offsets( |
3313 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3314 | )) goto bound_fail; | |
777f7c56 | 3315 | |
83f78d1a FC |
3316 | byte_len = len; |
3317 | byte_pos = utf8_curlen | |
0d788f38 | 3318 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3319 | |
2154eca7 | 3320 | tmps += byte_pos; |
bbddc9e0 CS |
3321 | |
3322 | if (rvalue) { | |
3323 | SvTAINTED_off(TARG); /* decontaminate */ | |
3324 | SvUTF8_off(TARG); /* decontaminate */ | |
3325 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3326 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3327 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3328 | #endif |
bbddc9e0 CS |
3329 | if (utf8_curlen) |
3330 | SvUTF8_on(TARG); | |
3331 | } | |
2154eca7 | 3332 | |
f7928d6c | 3333 | if (repl) { |
13e30c65 JH |
3334 | SV* repl_sv_copy = NULL; |
3335 | ||
3336 | if (repl_need_utf8_upgrade) { | |
3337 | repl_sv_copy = newSVsv(repl_sv); | |
3338 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3339 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3340 | } |
502d9230 VP |
3341 | if (!SvOK(sv)) |
3342 | sv_setpvs(sv, ""); | |
777f7c56 | 3343 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3344 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3345 | } |
79072805 | 3346 | } |
6a9665b0 FC |
3347 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) |
3348 | SP++; | |
3349 | else if (rvalue) { | |
bbddc9e0 CS |
3350 | SvSETMAGIC(TARG); |
3351 | PUSHs(TARG); | |
3352 | } | |
79072805 | 3353 | RETURN; |
777f7c56 | 3354 | |
7b52d656 | 3355 | bound_fail: |
83f78d1a | 3356 | if (repl) |
777f7c56 EB |
3357 | Perl_croak(aTHX_ "substr outside of string"); |
3358 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3359 | RETPUSHUNDEF; | |
79072805 LW |
3360 | } |
3361 | ||
3362 | PP(pp_vec) | |
3363 | { | |
20b7effb | 3364 | dSP; |
eb578fdb KW |
3365 | const IV size = POPi; |
3366 | const IV offset = POPi; | |
3367 | SV * const src = POPs; | |
1b6737cc | 3368 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3369 | SV * ret; |
a0d0e21e | 3370 | |
81e118e0 | 3371 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3372 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3373 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3374 | LvTYPE(ret) = 'v'; | |
3375 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3376 | LvTARGOFF(ret) = offset; | |
3377 | LvTARGLEN(ret) = size; | |
3378 | } | |
3379 | else { | |
3380 | dTARGET; | |
3381 | SvTAINTED_off(TARG); /* decontaminate */ | |
3382 | ret = TARG; | |
79072805 LW |
3383 | } |
3384 | ||
2154eca7 | 3385 | sv_setuv(ret, do_vecget(src, offset, size)); |
f9e95907 FC |
3386 | if (!lvalue) |
3387 | SvSETMAGIC(ret); | |
2154eca7 | 3388 | PUSHs(ret); |
79072805 LW |
3389 | RETURN; |
3390 | } | |
3391 | ||
b1c05ba5 DM |
3392 | |
3393 | /* also used for: pp_rindex() */ | |
3394 | ||
79072805 LW |
3395 | PP(pp_index) |
3396 | { | |
20b7effb | 3397 | dSP; dTARGET; |
79072805 LW |
3398 | SV *big; |
3399 | SV *little; | |
c445ea15 | 3400 | SV *temp = NULL; |
ad66a58c | 3401 | STRLEN biglen; |
2723d216 | 3402 | STRLEN llen = 0; |
b464e2b7 TC |
3403 | SSize_t offset = 0; |
3404 | SSize_t retval; | |
73ee8be2 NC |
3405 | const char *big_p; |
3406 | const char *little_p; | |
2f040f7f NC |
3407 | bool big_utf8; |
3408 | bool little_utf8; | |
2723d216 | 3409 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3410 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3411 | |
e1dccc0d Z |
3412 | if (threeargs) |
3413 | offset = POPi; | |
79072805 LW |
3414 | little = POPs; |
3415 | big = POPs; | |
73ee8be2 NC |
3416 | big_p = SvPV_const(big, biglen); |
3417 | little_p = SvPV_const(little, llen); | |
3418 | ||
e609e586 NC |
3419 | big_utf8 = DO_UTF8(big); |
3420 | little_utf8 = DO_UTF8(little); | |
3421 | if (big_utf8 ^ little_utf8) { | |
3422 | /* One needs to be upgraded. */ | |
47e13f24 | 3423 | if (little_utf8 && !IN_ENCODING) { |
2f040f7f NC |
3424 | /* Well, maybe instead we might be able to downgrade the small |
3425 | string? */ | |
1eced8f8 | 3426 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3427 | &little_utf8); |
3428 | if (little_utf8) { | |
3429 | /* If the large string is ISO-8859-1, and it's not possible to | |
3430 | convert the small string to ISO-8859-1, then there is no | |
3431 | way that it could be found anywhere by index. */ | |
3432 | retval = -1; | |
3433 | goto fail; | |
3434 | } | |
e609e586 | 3435 | |
2f040f7f NC |
3436 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3437 | to ensure it will get free()d */ | |
3438 | little = temp = newSV(0); | |
73ee8be2 NC |
3439 | sv_usepvn(temp, pv, llen); |
3440 | little_p = SvPVX(little); | |
e609e586 | 3441 | } else { |
73ee8be2 NC |
3442 | temp = little_utf8 |
3443 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
2f040f7f | 3444 | |
47e13f24 | 3445 | if (IN_ENCODING) { |
ad2de1b2 | 3446 | sv_recode_to_utf8(temp, _get_encoding()); |
2f040f7f NC |
3447 | } else { |
3448 | sv_utf8_upgrade(temp); | |
3449 | } | |
3450 | if (little_utf8) { | |
3451 | big = temp; | |
3452 | big_utf8 = TRUE; | |
73ee8be2 | 3453 | big_p = SvPV_const(big, biglen); |
2f040f7f NC |
3454 | } else { |
3455 | little = temp; | |
73ee8be2 | 3456 | little_p = SvPV_const(little, llen); |
2f040f7f | 3457 | } |
e609e586 NC |
3458 | } |
3459 | } | |
73ee8be2 NC |
3460 | if (SvGAMAGIC(big)) { |
3461 | /* Life just becomes a lot easier if I use a temporary here. | |
3462 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3463 | will trigger magic and overloading again, as will fbm_instr() | |
3464 | */ | |
59cd0e26 NC |
3465 | big = newSVpvn_flags(big_p, biglen, |
3466 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3467 | big_p = SvPVX(big); |
3468 | } | |
e4e44778 | 3469 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3470 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3471 | warn on undef, and we've already triggered a warning with the | |
3472 | SvPV_const some lines above. We can't remove that, as we need to | |
3473 | call some SvPV to trigger overloading early and find out if the | |
3474 | string is UTF-8. | |
8bd97c0c | 3475 | This is all getting too messy. The API isn't quite clean enough, |
73ee8be2 NC |
3476 | because data access has side effects. |
3477 | */ | |
59cd0e26 NC |
3478 | little = newSVpvn_flags(little_p, llen, |
3479 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3480 | little_p = SvPVX(little); |
3481 | } | |
e609e586 | 3482 | |
d3e26383 | 3483 | if (!threeargs) |
2723d216 | 3484 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3485 | else { |
ad66a58c | 3486 | if (big_utf8 && offset > 0) |
b464e2b7 | 3487 | offset = sv_pos_u2b_flags(big, offset, 0, SV_CONST_RETURN); |
73ee8be2 NC |
3488 | if (!is_index) |
3489 | offset += llen; | |
a0ed51b3 | 3490 | } |
79072805 LW |
3491 | if (offset < 0) |
3492 | offset = 0; | |
b464e2b7 | 3493 | else if (offset > (SSize_t)biglen) |
ad66a58c | 3494 | offset = biglen; |
73ee8be2 NC |
3495 | if (!(little_p = is_index |
3496 | ? fbm_instr((unsigned char*)big_p + offset, | |
3497 | (unsigned char*)big_p + biglen, little, 0) | |
3498 | : rninstr(big_p, big_p + offset, | |
3499 | little_p, little_p + llen))) | |
a0ed51b3 | 3500 | retval = -1; |
ad66a58c | 3501 | else { |
73ee8be2 | 3502 | retval = little_p - big_p; |
15c41403 | 3503 | if (retval > 1 && big_utf8) |
b464e2b7 | 3504 | retval = sv_pos_b2u_flags(big, retval, SV_CONST_RETURN); |
ad66a58c | 3505 | } |
ef8d46e8 | 3506 | SvREFCNT_dec(temp); |
2723d216 | 3507 | fail: |
e1dccc0d | 3508 | PUSHi(retval); |
79072805 LW |
3509 | RETURN; |
3510 | } | |
3511 | ||
3512 | PP(pp_sprintf) | |
3513 | { | |
20b7effb | 3514 | dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3515 | SvTAINTED_off(TARG); |
79072805 | 3516 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3517 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3518 | SP = ORIGMARK; |
3519 | PUSHTARG; | |
3520 | RETURN; | |
3521 | } | |
3522 | ||
79072805 LW |
3523 | PP(pp_ord) |
3524 | { | |
20b7effb | 3525 | dSP; dTARGET; |
1eced8f8 | 3526 | |
6ba92227 | 3527 | SV *argsv = TOPs; |
ba210ebe | 3528 | STRLEN len; |
349d4f2f | 3529 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3530 | |
47e13f24 | 3531 | if (IN_ENCODING && SvPOK(argsv) && !DO_UTF8(argsv)) { |
1eced8f8 | 3532 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
ad2de1b2 | 3533 | s = (U8*)sv_recode_to_utf8(tmpsv, _get_encoding()); |
4f6386b6 | 3534 | len = UTF8SKIP(s); /* Should be well-formed; so this is its length */ |
121910a4 JH |
3535 | argsv = tmpsv; |
3536 | } | |
79072805 | 3537 | |
6ba92227 | 3538 | SETu(DO_UTF8(argsv) |
4f6386b6 | 3539 | ? utf8n_to_uvchr(s, len, 0, UTF8_ALLOW_ANYUV) |
f3943cf2 | 3540 | : (UV)(*s)); |
68795e93 | 3541 | |
6ba92227 | 3542 | return NORMAL; |
79072805 LW |
3543 | } |
3544 | ||
463ee0b2 LW |
3545 | PP(pp_chr) |
3546 | { | |
20b7effb | 3547 | dSP; dTARGET; |
463ee0b2 | 3548 | char *tmps; |
8a064bd6 | 3549 | UV value; |
d3261b99 | 3550 | SV *top = TOPs; |
8a064bd6 | 3551 | |
71739502 | 3552 | SvGETMAGIC(top); |
9911fc4e FC |
3553 | if (UNLIKELY(SvAMAGIC(top))) |
3554 | top = sv_2num(top); | |
99f450cc | 3555 | if (UNLIKELY(isinfnansv(top))) |
0c7df902 | 3556 | Perl_croak(aTHX_ "Cannot chr %"NVgf, SvNV(top)); |
1cd88304 JH |
3557 | else { |
3558 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3559 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
3560 | || | |
3561 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) | |
2cc2a5a0 KW |
3562 | && SvNV_nomg(top) < 0.0))) |
3563 | { | |
b3fe8680 FC |
3564 | if (ckWARN(WARN_UTF8)) { |
3565 | if (SvGMAGICAL(top)) { | |
3566 | SV *top2 = sv_newmortal(); | |
3567 | sv_setsv_nomg(top2, top); | |
3568 | top = top2; | |
3569 | } | |
1cd88304 JH |
3570 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
3571 | "Invalid negative number (%"SVf") in chr", SVfARG(top)); | |
3572 | } | |
3573 | value = UNICODE_REPLACEMENT; | |
3574 | } else { | |
3575 | value = SvUV_nomg(top); | |
3576 | } | |
8a064bd6 | 3577 | } |
463ee0b2 | 3578 | |
862a34c6 | 3579 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3580 | |
0064a8a9 | 3581 | if (value > 255 && !IN_BYTES) { |
5f560d8a | 3582 | SvGROW(TARG, (STRLEN)UVCHR_SKIP(value)+1); |
62961d2e | 3583 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3584 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3585 | *tmps = '\0'; |
3586 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3587 | SvUTF8_on(TARG); |
d3261b99 FC |
3588 | SETTARG; |
3589 | return NORMAL; | |
a0ed51b3 LW |
3590 | } |
3591 | ||
748a9306 | 3592 | SvGROW(TARG,2); |
463ee0b2 LW |
3593 | SvCUR_set(TARG, 1); |
3594 | tmps = SvPVX(TARG); | |
eb160463 | 3595 | *tmps++ = (char)value; |
748a9306 | 3596 | *tmps = '\0'; |
a0d0e21e | 3597 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3598 | |
47e13f24 | 3599 | if (IN_ENCODING && !IN_BYTES) { |
ad2de1b2 | 3600 | sv_recode_to_utf8(TARG, _get_encoding()); |
88632417 | 3601 | tmps = SvPVX(TARG); |
28936164 KW |
3602 | if (SvCUR(TARG) == 0 |
3603 | || ! is_utf8_string((U8*)tmps, SvCUR(TARG)) | |
3604 | || UTF8_IS_REPLACEMENT((U8*) tmps, (U8*) tmps + SvCUR(TARG))) | |
3605 | { | |
4c5ed6e2 | 3606 | SvGROW(TARG, 2); |
d5a15ac2 | 3607 | tmps = SvPVX(TARG); |
4c5ed6e2 TS |
3608 | SvCUR_set(TARG, 1); |
3609 | *tmps++ = (char)value; | |
88632417 | 3610 | *tmps = '\0'; |
4c5ed6e2 | 3611 | SvUTF8_off(TARG); |
88632417 JH |
3612 | } |
3613 | } | |
4c5ed6e2 | 3614 | |
d3261b99 FC |
3615 | SETTARG; |
3616 | return NORMAL; | |
463ee0b2 LW |
3617 | } |
3618 | ||
79072805 LW |
3619 | PP(pp_crypt) |
3620 | { | |
79072805 | 3621 | #ifdef HAS_CRYPT |
20b7effb | 3622 | dSP; dTARGET; |
5f74f29c | 3623 | dPOPTOPssrl; |
85c16d83 | 3624 | STRLEN len; |
10516c54 | 3625 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3626 | |
85c16d83 | 3627 | if (DO_UTF8(left)) { |
2bc69dc4 | 3628 | /* If Unicode, try to downgrade. |
f2791508 JH |
3629 | * If not possible, croak. |
3630 | * Yes, we made this up. */ | |
659fbb76 | 3631 | SV* const tsv = newSVpvn_flags(tmps, len, SVf_UTF8|SVs_TEMP); |
2bc69dc4 | 3632 | |
2bc69dc4 | 3633 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3634 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3635 | } |
05404ffe JH |
3636 | # ifdef USE_ITHREADS |
3637 | # ifdef HAS_CRYPT_R | |
3638 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3639 | /* This should be threadsafe because in ithreads there is only | |
3640 | * one thread per interpreter. If this would not be true, | |
3641 | * we would need a mutex to protect this malloc. */ | |
3642 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3643 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3644 | #if defined(__GLIBC__) || defined(__EMX__) | |
3645 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3646 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3647 | /* work around glibc-2.2.5 bug */ | |
3648 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3649 | } | |
05404ffe | 3650 | #endif |
6ab58e4d | 3651 | } |
05404ffe JH |
3652 | # endif /* HAS_CRYPT_R */ |
3653 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3654 | # ifdef FCRYPT |
83003860 | 3655 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3656 | # else |
83003860 | 3657 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3658 | # endif |
fbc76eb3 | 3659 | SvUTF8_off(TARG); |
ec93b65f | 3660 | SETTARG; |
4808266b | 3661 | RETURN; |
79072805 | 3662 | #else |
b13b2135 | 3663 | DIE(aTHX_ |
79072805 LW |
3664 | "The crypt() function is unimplemented due to excessive paranoia."); |
3665 | #endif | |
79072805 LW |
3666 | } |
3667 | ||
00f254e2 KW |
3668 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3669 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3670 | ||
b1c05ba5 DM |
3671 | |
3672 | /* also used for: pp_lcfirst() */ | |
3673 | ||
79072805 LW |
3674 | PP(pp_ucfirst) |
3675 | { | |
00f254e2 KW |
3676 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3677 | * changes. This means that possibly we can change in-place, ie., just | |
3678 | * take the source and change that one character and store it back, but not | |
3679 | * if read-only etc, or if the length changes */ | |
3680 | ||
39644a26 | 3681 | dSP; |
d54190f6 | 3682 | SV *source = TOPs; |
00f254e2 | 3683 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3684 | STRLEN need; |
3685 | SV *dest; | |
00f254e2 KW |
3686 | bool inplace; /* ? Convert first char only, in-place */ |
3687 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3688 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3689 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3690 | const U8 *s; |
3691 | U8 *d; | |
3692 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3693 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3694 | * stored as UTF-8 at s. */ | |
3695 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3696 | * lowercased) character stored in tmpbuf. May be either | |
3697 | * UTF-8 or not, but in either case is the number of bytes */ | |
d54190f6 | 3698 | |
841a5e18 | 3699 | s = (const U8*)SvPV_const(source, slen); |
a0ed51b3 | 3700 | |
00f254e2 KW |
3701 | /* We may be able to get away with changing only the first character, in |
3702 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3703 | * not convert in-place. */ | |
5cd5e2d6 FC |
3704 | inplace = !SvREADONLY(source) |
3705 | && ( SvPADTMP(source) | |
3706 | || ( SvTEMP(source) && !SvSMAGICAL(source) | |
3707 | && SvREFCNT(source) == 1)); | |
00f254e2 KW |
3708 | |
3709 | /* First calculate what the changed first character should be. This affects | |
3710 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3711 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3712 | ||
3713 | if (! slen) { /* If empty */ | |
3714 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3715 | ulen = 0; |
00f254e2 KW |
3716 | } |
3717 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3718 | doing_utf8 = TRUE; |
17e95c9d | 3719 | ulen = UTF8SKIP(s); |
094a2f8c | 3720 | if (op_type == OP_UCFIRST) { |
130c5df3 | 3721 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 3722 | _to_utf8_title_flags(s, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3723 | #else |
5a6bb681 | 3724 | _to_utf8_title_flags(s, tmpbuf, &tculen, 0); |
130c5df3 | 3725 | #endif |
094a2f8c KW |
3726 | } |
3727 | else { | |
130c5df3 | 3728 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 3729 | _to_utf8_lower_flags(s, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3730 | #else |
5a6bb681 | 3731 | _to_utf8_lower_flags(s, tmpbuf, &tculen, 0); |
130c5df3 | 3732 | #endif |
094a2f8c | 3733 | } |
00f254e2 | 3734 | |
17e95c9d KW |
3735 | /* we can't do in-place if the length changes. */ |
3736 | if (ulen != tculen) inplace = FALSE; | |
3737 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3738 | } |
00f254e2 KW |
3739 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3740 | * latin1 is treated as caseless. Note that a locale takes | |
3741 | * precedence */ | |
167d19f2 | 3742 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3743 | tculen = 1; /* Most characters will require one byte, but this will |
3744 | * need to be overridden for the tricky ones */ | |
3745 | need = slen + 1; | |
3746 | ||
3747 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3748 | |
00f254e2 | 3749 | /* lower case the first letter: no trickiness for any character */ |
130c5df3 | 3750 | #ifdef USE_LOCALE_CTYPE |
780fcc9f KW |
3751 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
3752 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
3753 | *tmpbuf = toLOWER_LC(*s); | |
3754 | } | |
3755 | else | |
130c5df3 | 3756 | #endif |
780fcc9f KW |
3757 | { |
3758 | *tmpbuf = (IN_UNI_8_BIT) | |
3759 | ? toLOWER_LATIN1(*s) | |
3760 | : toLOWER(*s); | |
3761 | } | |
00f254e2 | 3762 | } |
130c5df3 | 3763 | #ifdef USE_LOCALE_CTYPE |
780fcc9f | 3764 | /* is ucfirst() */ |
d6ded950 | 3765 | else if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
3766 | if (IN_UTF8_CTYPE_LOCALE) { |
3767 | goto do_uni_rules; | |
3768 | } | |
3769 | ||
780fcc9f | 3770 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
31f05a37 KW |
3771 | *tmpbuf = (U8) toUPPER_LC(*s); /* This would be a bug if any |
3772 | locales have upper and title case | |
3773 | different */ | |
00f254e2 | 3774 | } |
130c5df3 | 3775 | #endif |
00f254e2 KW |
3776 | else if (! IN_UNI_8_BIT) { |
3777 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3778 | * on EBCDIC machines whatever the | |
3779 | * native function does */ | |
3780 | } | |
31f05a37 KW |
3781 | else { |
3782 | /* Here, is ucfirst non-UTF-8, not in locale (unless that locale is | |
3783 | * UTF-8, which we treat as not in locale), and cased latin1 */ | |
3784 | UV title_ord; | |
91191cf7 | 3785 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 3786 | do_uni_rules: |
91191cf7 | 3787 | #endif |
31f05a37 KW |
3788 | |
3789 | title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); | |
167d19f2 KW |
3790 | if (tculen > 1) { |
3791 | assert(tculen == 2); | |
3792 | ||
3793 | /* If the result is an upper Latin1-range character, it can | |
3794 | * still be represented in one byte, which is its ordinal */ | |
3795 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3796 | *tmpbuf = (U8) title_ord; | |
3797 | tculen = 1; | |
00f254e2 KW |
3798 | } |
3799 | else { | |
167d19f2 KW |
3800 | /* Otherwise it became more than one ASCII character (in |
3801 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3802 | * beyond Latin1, so the number of bytes changed, so can't | |
3803 | * replace just the first character in place. */ | |
3804 | inplace = FALSE; | |
3805 | ||
d14578b8 KW |
3806 | /* If the result won't fit in a byte, the entire result |
3807 | * will have to be in UTF-8. Assume worst case sizing in | |
3808 | * conversion. (all latin1 characters occupy at most two | |
3809 | * bytes in utf8) */ | |
167d19f2 KW |
3810 | if (title_ord > 255) { |
3811 | doing_utf8 = TRUE; | |
3812 | convert_source_to_utf8 = TRUE; | |
3813 | need = slen * 2 + 1; | |
3814 | ||
3815 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3816 | * (both) characters whose title case is above 255 is | |
3817 | * 2. */ | |
3818 | ulen = 2; | |
3819 | } | |
3820 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3821 | need = slen + 1 + 1; | |
3822 | } | |
00f254e2 | 3823 | } |
167d19f2 | 3824 | } |
00f254e2 KW |
3825 | } /* End of use Unicode (Latin1) semantics */ |
3826 | } /* End of changing the case of the first character */ | |
3827 | ||
3828 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3829 | * generate the result */ | |
3830 | if (inplace) { | |
3831 | ||
3832 | /* We can convert in place. This means we change just the first | |
3833 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3834 | dest = source; |
3835 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3836 | } else { | |
3837 | dTARGET; | |
3838 | ||
3839 | dest = TARG; | |
3840 | ||
00f254e2 KW |
3841 | /* Here, we can't convert in place; we earlier calculated how much |
3842 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3843 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3844 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3845 | (void)SvPOK_only(dest); |
3846 | ||
3847 | SETs(dest); | |
d54190f6 | 3848 | } |
44bc797b | 3849 | |
d54190f6 | 3850 | if (doing_utf8) { |
00f254e2 KW |
3851 | if (! inplace) { |
3852 | if (! convert_source_to_utf8) { | |
3853 | ||
3854 | /* Here both source and dest are in UTF-8, but have to create | |
3855 | * the entire output. We initialize the result to be the | |
3856 | * title/lower cased first character, and then append the rest | |
3857 | * of the string. */ | |
3858 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3859 | if (slen > ulen) { | |
3860 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3861 | } | |
3862 | } | |
3863 | else { | |
3864 | const U8 *const send = s + slen; | |
3865 | ||
3866 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3867 | * except we earlier UTF-8'd the first character of the source | |
3868 | * into tmpbuf. First put that into dest, and then append the | |
3869 | * rest of the source, converting it to UTF-8 as we go. */ | |
3870 | ||
3871 | /* Assert tculen is 2 here because the only two characters that | |
3872 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3873 | *d++ = *tmpbuf; | |
3874 | *d++ = *(tmpbuf + 1); | |
3875 | s++; /* We have just processed the 1st char */ | |
3876 | ||
3877 | for (; s < send; s++) { | |
3878 | d = uvchr_to_utf8(d, *s); | |
3879 | } | |
3880 | *d = '\0'; | |
3881 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3882 | } | |
d54190f6 | 3883 | SvUTF8_on(dest); |
a0ed51b3 | 3884 | } |
00f254e2 | 3885 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3886 | Copy(tmpbuf, d, tculen, U8); |
3887 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3888 | } |
094a2f8c | 3889 | |
a0ed51b3 | 3890 | } |
00f254e2 KW |
3891 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3892 | if (slen) { | |
00f254e2 KW |
3893 | if (inplace) { /* in-place, only need to change the 1st char */ |
3894 | *d = *tmpbuf; | |
3895 | } | |
3896 | else { /* Not in-place */ | |
3897 | ||
3898 | /* Copy the case-changed character(s) from tmpbuf */ | |
3899 | Copy(tmpbuf, d, tculen, U8); | |
3900 | d += tculen - 1; /* Code below expects d to point to final | |
3901 | * character stored */ | |
3902 | } | |
3903 | } | |
3904 | else { /* empty source */ | |
3905 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3906 | *d = *s; |
3907 | } | |
3908 | ||
00f254e2 KW |
3909 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3910 | * the destination to retain that flag */ | |
93e088e8 | 3911 | if (SvUTF8(source) && ! IN_BYTES) |
d54190f6 NC |
3912 | SvUTF8_on(dest); |
3913 | ||
00f254e2 | 3914 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3915 | /* This will copy the trailing NUL */ |
3916 | Copy(s + 1, d + 1, slen, U8); | |
3917 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3918 | } |
bbce6d69 | 3919 | } |
130c5df3 | 3920 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 3921 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
3922 | TAINT; |
3923 | SvTAINTED_on(dest); | |
3924 | } | |
130c5df3 | 3925 | #endif |
539689e7 FC |
3926 | if (dest != source && SvTAINTED(source)) |
3927 | SvTAINT(dest); | |
d54190f6 | 3928 | SvSETMAGIC(dest); |
3cb4e04f | 3929 | return NORMAL; |
79072805 LW |
3930 | } |
3931 | ||
67306194 NC |
3932 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3933 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3934 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3935 | PP(pp_uc) |
3936 | { | |
39644a26 | 3937 | dSP; |
67306194 | 3938 | SV *source = TOPs; |
463ee0b2 | 3939 | STRLEN len; |
67306194 NC |
3940 | STRLEN min; |
3941 | SV *dest; | |
3942 | const U8 *s; | |
3943 | U8 *d; | |
79072805 | 3944 | |
67306194 NC |
3945 | SvGETMAGIC(source); |
3946 | ||
5cd5e2d6 FC |
3947 | if ((SvPADTMP(source) |
3948 | || | |
3949 | (SvTEMP(source) && !SvSMAGICAL(source) && SvREFCNT(source) == 1)) | |
3950 | && !SvREADONLY(source) && SvPOK(source) | |
3951 | && !DO_UTF8(source) | |
130c5df3 KW |
3952 | && ( |
3953 | #ifdef USE_LOCALE_CTYPE | |
3954 | (IN_LC_RUNTIME(LC_CTYPE)) | |
31f05a37 | 3955 | ? ! IN_UTF8_CTYPE_LOCALE |
130c5df3 KW |
3956 | : |
3957 | #endif | |
3958 | ! IN_UNI_8_BIT)) | |
31f05a37 KW |
3959 | { |
3960 | ||
3961 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3962 | * make the loop tight, so we overwrite the source with the dest before | |
3963 | * looking at it, and we need to look at the original source | |
3964 | * afterwards. There would also need to be code added to handle | |
3965 | * switching to not in-place in midstream if we run into characters | |
3966 | * that change the length. Since being in locale overrides UNI_8_BIT, | |
3967 | * that latter becomes irrelevant in the above test; instead for | |
3968 | * locale, the size can't normally change, except if the locale is a | |
3969 | * UTF-8 one */ | |
67306194 NC |
3970 | dest = source; |
3971 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3972 | min = len + 1; | |
3973 | } else { | |
a0ed51b3 | 3974 | dTARGET; |
a0ed51b3 | 3975 | |
67306194 | 3976 | dest = TARG; |
128c9517 | 3977 | |
841a5e18 | 3978 | s = (const U8*)SvPV_nomg_const(source, len); |
67306194 NC |
3979 | min = len + 1; |
3980 | ||
3981 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3982 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
3983 | (void)SvPOK_only(dest); |
3984 | ||
3985 | SETs(dest); | |
a0ed51b3 | 3986 | } |
31351b04 | 3987 | |
67306194 NC |
3988 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
3989 | to check DO_UTF8 again here. */ | |
3990 | ||
3991 | if (DO_UTF8(source)) { | |
3992 | const U8 *const send = s + len; | |
bfac13d4 | 3993 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
67306194 | 3994 | |
4c8a458a KW |
3995 | /* All occurrences of these are to be moved to follow any other marks. |
3996 | * This is context-dependent. We may not be passed enough context to | |
3997 | * move the iota subscript beyond all of them, but we do the best we can | |
3998 | * with what we're given. The result is always better than if we | |
3999 | * hadn't done this. And, the problem would only arise if we are | |
4000 | * passed a character without all its combining marks, which would be | |
4001 | * the caller's mistake. The information this is based on comes from a | |
4002 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
4003 | * itself) and so can't be checked properly to see if it ever gets | |
4004 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 4005 | bool in_iota_subscript = FALSE; |
00f254e2 | 4006 | |
67306194 | 4007 | while (s < send) { |
3e16b0e6 KW |
4008 | STRLEN u; |
4009 | STRLEN ulen; | |
4010 | UV uv; | |
7dbf68d2 | 4011 | if (in_iota_subscript && ! _is_utf8_mark(s)) { |
3e16b0e6 | 4012 | |
00f254e2 | 4013 | /* A non-mark. Time to output the iota subscript */ |
a78bc3c6 KW |
4014 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4015 | d += capital_iota_len; | |
00f254e2 | 4016 | in_iota_subscript = FALSE; |
8e058693 | 4017 | } |
00f254e2 | 4018 | |
8e058693 KW |
4019 | /* Then handle the current character. Get the changed case value |
4020 | * and copy it to the output buffer */ | |
00f254e2 | 4021 | |
8e058693 | 4022 | u = UTF8SKIP(s); |
130c5df3 | 4023 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 4024 | uv = _to_utf8_upper_flags(s, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4025 | #else |
5a6bb681 | 4026 | uv = _to_utf8_upper_flags(s, tmpbuf, &ulen, 0); |
130c5df3 | 4027 | #endif |
a78bc3c6 KW |
4028 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
4029 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
8e058693 | 4030 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 4031 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
4032 | { |
4033 | in_iota_subscript = TRUE; | |
4034 | } | |
4035 | else { | |
4036 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4037 | /* If the eventually required minimum size outgrows the | |
4038 | * available space, we need to grow. */ | |
4039 | const UV o = d - (U8*)SvPVX_const(dest); | |
4040 | ||
4041 | /* If someone uppercases one million U+03B0s we SvGROW() | |
4042 | * one million times. Or we could try guessing how much to | |
4043 | * allocate without allocating too much. Such is life. | |
4044 | * See corresponding comment in lc code for another option | |
4045 | * */ | |
4046 | SvGROW(dest, min); | |
4047 | d = (U8*)SvPVX(dest) + o; | |
4048 | } | |
4049 | Copy(tmpbuf, d, ulen, U8); | |
4050 | d += ulen; | |
4051 | } | |
4052 | s += u; | |
67306194 | 4053 | } |
4c8a458a | 4054 | if (in_iota_subscript) { |
a78bc3c6 KW |
4055 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4056 | d += capital_iota_len; | |
4c8a458a | 4057 | } |
67306194 NC |
4058 | SvUTF8_on(dest); |
4059 | *d = '\0'; | |
094a2f8c | 4060 | |
67306194 | 4061 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4c8a458a KW |
4062 | } |
4063 | else { /* Not UTF-8 */ | |
67306194 NC |
4064 | if (len) { |
4065 | const U8 *const send = s + len; | |
00f254e2 KW |
4066 | |
4067 | /* Use locale casing if in locale; regular style if not treating | |
4068 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4069 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4070 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4071 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
4072 | if (IN_UTF8_CTYPE_LOCALE) { |
4073 | goto do_uni_rules; | |
4074 | } | |
780fcc9f | 4075 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
67306194 | 4076 | for (; s < send; d++, s++) |
31f05a37 | 4077 | *d = (U8) toUPPER_LC(*s); |
31351b04 | 4078 | } |
130c5df3 KW |
4079 | else |
4080 | #endif | |
4081 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4082 | for (; s < send; d++, s++) { |
67306194 | 4083 | *d = toUPPER(*s); |
00f254e2 | 4084 | } |
31351b04 | 4085 | } |
00f254e2 | 4086 | else { |
91191cf7 | 4087 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4088 | do_uni_rules: |
91191cf7 | 4089 | #endif |
00f254e2 KW |
4090 | for (; s < send; d++, s++) { |
4091 | *d = toUPPER_LATIN1_MOD(*s); | |
d14578b8 KW |
4092 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) { |
4093 | continue; | |
4094 | } | |
00f254e2 KW |
4095 | |
4096 | /* The mainstream case is the tight loop above. To avoid | |
4097 | * extra tests in that, all three characters that require | |
4098 | * special handling are mapped by the MOD to the one tested | |
4099 | * just above. | |
4100 | * Use the source to distinguish between the three cases */ | |
4101 | ||
79e064b9 KW |
4102 | #if UNICODE_MAJOR_VERSION > 2 \ |
4103 | || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ | |
4104 | && UNICODE_DOT_DOT_VERSION >= 8) | |
00f254e2 KW |
4105 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { |
4106 | ||
4107 | /* uc() of this requires 2 characters, but they are | |
4108 | * ASCII. If not enough room, grow the string */ | |
4109 | if (SvLEN(dest) < ++min) { | |
4110 | const UV o = d - (U8*)SvPVX_const(dest); | |
4111 | SvGROW(dest, min); | |
4112 | d = (U8*)SvPVX(dest) + o; | |
4113 | } | |
4114 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
4115 | continue; /* Back to the tight loop; still in ASCII */ | |
4116 | } | |
79e064b9 | 4117 | #endif |
00f254e2 KW |
4118 | |
4119 | /* The other two special handling characters have their | |
4120 | * upper cases outside the latin1 range, hence need to be | |
4121 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
4122 | * here we are somewhere in the middle of processing a | |
4123 | * non-UTF-8 string, and realize that we will have to convert | |
4124 | * the whole thing to UTF-8. What to do? There are | |
4125 | * several possibilities. The simplest to code is to | |
4126 | * convert what we have so far, set a flag, and continue on | |
4127 | * in the loop. The flag would be tested each time through | |
4128 | * the loop, and if set, the next character would be | |
4129 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
4130 | * to slow down the mainstream case at all for this fairly | |
4131 | * rare case, so I didn't want to add a test that didn't | |
4132 | * absolutely have to be there in the loop, besides the | |
4133 | * possibility that it would get too complicated for | |
4134 | * optimizers to deal with. Another possibility is to just | |
4135 | * give up, convert the source to UTF-8, and restart the | |
4136 | * function that way. Another possibility is to convert | |
4137 | * both what has already been processed and what is yet to | |
4138 | * come separately to UTF-8, then jump into the loop that | |
4139 | * handles UTF-8. But the most efficient time-wise of the | |
4140 | * ones I could think of is what follows, and turned out to | |
4141 | * not require much extra code. */ | |
4142 | ||
4143 | /* Convert what we have so far into UTF-8, telling the | |
4144 | * function that we know it should be converted, and to | |
4145 | * allow extra space for what we haven't processed yet. | |
4146 | * Assume the worst case space requirements for converting | |
4147 | * what we haven't processed so far: that it will require | |
4148 | * two bytes for each remaining source character, plus the | |
4149 | * NUL at the end. This may cause the string pointer to | |
4150 | * move, so re-find it. */ | |
4151 | ||
4152 | len = d - (U8*)SvPVX_const(dest); | |
4153 | SvCUR_set(dest, len); | |
4154 | len = sv_utf8_upgrade_flags_grow(dest, | |
4155 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
4156 | (send -s) * 2 + 1); | |
4157 | d = (U8*)SvPVX(dest) + len; | |
4158 | ||
00f254e2 KW |
4159 | /* Now process the remainder of the source, converting to |
4160 | * upper and UTF-8. If a resulting byte is invariant in | |
4161 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
4162 | * append it to the output. */ | |
00f254e2 | 4163 | for (; s < send; s++) { |
0ecfbd28 KW |
4164 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
4165 | d += len; | |
00f254e2 KW |
4166 | } |
4167 | ||
4168 | /* Here have processed the whole source; no need to continue | |
4169 | * with the outer loop. Each character has been converted | |
4170 | * to upper case and converted to UTF-8 */ | |
4171 | ||
4172 | break; | |
4173 | } /* End of processing all latin1-style chars */ | |
4174 | } /* End of processing all chars */ | |
4175 | } /* End of source is not empty */ | |
4176 | ||
67306194 | 4177 | if (source != dest) { |
00f254e2 | 4178 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
4179 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4180 | } | |
00f254e2 | 4181 | } /* End of isn't utf8 */ |
130c5df3 | 4182 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4183 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4184 | TAINT; |
4185 | SvTAINTED_on(dest); | |
4186 | } | |
130c5df3 | 4187 | #endif |
539689e7 FC |
4188 | if (dest != source && SvTAINTED(source)) |
4189 | SvTAINT(dest); | |
67306194 | 4190 | SvSETMAGIC(dest); |
3cb4e04f | 4191 | return NORMAL; |
79072805 LW |
4192 | } |
4193 | ||
4194 | PP(pp_lc) | |
4195 | { | |
39644a26 | 4196 | dSP; |
ec9af7d4 | 4197 | SV *source = TOPs; |
463ee0b2 | 4198 | STRLEN len; |
ec9af7d4 NC |
4199 | STRLEN min; |
4200 | SV *dest; | |
4201 | const U8 *s; | |
4202 | U8 *d; | |
79072805 | 4203 | |
ec9af7d4 NC |
4204 | SvGETMAGIC(source); |
4205 | ||
5cd5e2d6 FC |
4206 | if ( ( SvPADTMP(source) |
4207 | || ( SvTEMP(source) && !SvSMAGICAL(source) | |
4208 | && SvREFCNT(source) == 1 ) | |
4209 | ) | |
4210 | && !SvREADONLY(source) && SvPOK(source) | |
4211 | && !DO_UTF8(source)) { | |
ec9af7d4 | 4212 | |
00f254e2 KW |
4213 | /* We can convert in place, as lowercasing anything in the latin1 range |
4214 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
4215 | dest = source; |
4216 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4217 | min = len + 1; | |
4218 | } else { | |
a0ed51b3 | 4219 | dTARGET; |
a0ed51b3 | 4220 | |
ec9af7d4 NC |
4221 | dest = TARG; |
4222 | ||
841a5e18 | 4223 | s = (const U8*)SvPV_nomg_const(source, len); |
ec9af7d4 | 4224 | min = len + 1; |
128c9517 | 4225 | |
ec9af7d4 | 4226 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 4227 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
4228 | (void)SvPOK_only(dest); |
4229 | ||
4230 | SETs(dest); | |
4231 | } | |
4232 | ||
4233 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
4234 | to check DO_UTF8 again here. */ | |
4235 | ||
4236 | if (DO_UTF8(source)) { | |
4237 | const U8 *const send = s + len; | |
4238 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
4239 | ||
4240 | while (s < send) { | |
06b5486a KW |
4241 | const STRLEN u = UTF8SKIP(s); |
4242 | STRLEN ulen; | |
00f254e2 | 4243 | |
130c5df3 | 4244 | #ifdef USE_LOCALE_CTYPE |
5a6bb681 | 4245 | _to_utf8_lower_flags(s, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4246 | #else |
5a6bb681 | 4247 | _to_utf8_lower_flags(s, tmpbuf, &ulen, 0); |
130c5df3 | 4248 | #endif |
00f254e2 | 4249 | |
06b5486a | 4250 | /* Here is where we would do context-sensitive actions. See the |
6006ebd0 | 4251 | * commit message for 86510fb15 for why there isn't any */ |
00f254e2 | 4252 | |
06b5486a | 4253 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 4254 | |
06b5486a KW |
4255 | /* If the eventually required minimum size outgrows the |
4256 | * available space, we need to grow. */ | |
4257 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4258 | |
06b5486a KW |
4259 | /* If someone lowercases one million U+0130s we SvGROW() one |
4260 | * million times. Or we could try guessing how much to | |
4261 | * allocate without allocating too much. Such is life. | |
4262 | * Another option would be to grow an extra byte or two more | |
4263 | * each time we need to grow, which would cut down the million | |
4264 | * to 500K, with little waste */ | |
4265 | SvGROW(dest, min); | |
4266 | d = (U8*)SvPVX(dest) + o; | |
4267 | } | |
86510fb1 | 4268 | |
06b5486a KW |
4269 | /* Copy the newly lowercased letter to the output buffer we're |
4270 | * building */ | |
4271 | Copy(tmpbuf, d, ulen, U8); | |
4272 | d += ulen; | |
4273 | s += u; | |
00f254e2 | 4274 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4275 | SvUTF8_on(dest); |
4276 | *d = '\0'; | |
4277 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
00f254e2 | 4278 | } else { /* Not utf8 */ |
31351b04 | 4279 | if (len) { |
ec9af7d4 | 4280 | const U8 *const send = s + len; |
00f254e2 KW |
4281 | |
4282 | /* Use locale casing if in locale; regular style if not treating | |
4283 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4284 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4285 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4286 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
780fcc9f | 4287 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
ec9af7d4 NC |
4288 | for (; s < send; d++, s++) |
4289 | *d = toLOWER_LC(*s); | |
445bf929 | 4290 | } |
130c5df3 KW |
4291 | else |
4292 | #endif | |
4293 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4294 | for (; s < send; d++, s++) { |
ec9af7d4 | 4295 | *d = toLOWER(*s); |
00f254e2 KW |
4296 | } |
4297 | } | |
4298 | else { | |
4299 | for (; s < send; d++, s++) { | |
4300 | *d = toLOWER_LATIN1(*s); | |
4301 | } | |
31351b04 | 4302 | } |
bbce6d69 | 4303 | } |
ec9af7d4 NC |
4304 | if (source != dest) { |
4305 | *d = '\0'; | |
4306 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4307 | } | |
79072805 | 4308 | } |
130c5df3 | 4309 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4310 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4311 | TAINT; |
4312 | SvTAINTED_on(dest); | |
4313 | } | |
130c5df3 | 4314 | #endif |
539689e7 FC |
4315 | if (dest != source && SvTAINTED(source)) |
4316 | SvTAINT(dest); | |
ec9af7d4 | 4317 | SvSETMAGIC(dest); |
3cb4e04f | 4318 | return NORMAL; |
79072805 LW |
4319 | } |
4320 | ||
a0d0e21e | 4321 | PP(pp_quotemeta) |
79072805 | 4322 | { |
20b7effb | 4323 | dSP; dTARGET; |
1b6737cc | 4324 | SV * const sv = TOPs; |
a0d0e21e | 4325 | STRLEN len; |
eb578fdb | 4326 | const char *s = SvPV_const(sv,len); |
79072805 | 4327 | |
7e2040f0 | 4328 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4329 | if (len) { |
eb578fdb | 4330 | char *d; |
862a34c6 | 4331 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4332 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4333 | d = SvPVX(TARG); |
7e2040f0 | 4334 | if (DO_UTF8(sv)) { |
0dd2cdef | 4335 | while (len) { |
29050de5 | 4336 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4337 | bool to_quote = FALSE; |
4338 | ||
4339 | if (UTF8_IS_INVARIANT(*s)) { | |
4340 | if (_isQUOTEMETA(*s)) { | |
4341 | to_quote = TRUE; | |
4342 | } | |
4343 | } | |
4344 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
3fea7d29 | 4345 | if ( |
130c5df3 | 4346 | #ifdef USE_LOCALE_CTYPE |
20adcf7c KW |
4347 | /* In locale, we quote all non-ASCII Latin1 chars. |
4348 | * Otherwise use the quoting rules */ | |
3fea7d29 BF |
4349 | |
4350 | IN_LC_RUNTIME(LC_CTYPE) | |
4351 | || | |
4352 | #endif | |
a62b247b | 4353 | _isQUOTEMETA(EIGHT_BIT_UTF8_TO_NATIVE(*s, *(s + 1)))) |
2e2b2571 KW |
4354 | { |
4355 | to_quote = TRUE; | |
4356 | } | |
4357 | } | |
685289b5 | 4358 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4359 | to_quote = TRUE; |
4360 | } | |
4361 | ||
4362 | if (to_quote) { | |
4363 | *d++ = '\\'; | |
4364 | } | |
29050de5 KW |
4365 | if (ulen > len) |
4366 | ulen = len; | |
4367 | len -= ulen; | |
4368 | while (ulen--) | |
4369 | *d++ = *s++; | |
0dd2cdef | 4370 | } |
7e2040f0 | 4371 | SvUTF8_on(TARG); |
0dd2cdef | 4372 | } |
2e2b2571 KW |
4373 | else if (IN_UNI_8_BIT) { |
4374 | while (len--) { | |
4375 | if (_isQUOTEMETA(*s)) | |
4376 | *d++ = '\\'; | |
4377 | *d++ = *s++; | |
4378 | } | |
4379 | } | |
0dd2cdef | 4380 | else { |
2e2b2571 KW |
4381 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4382 | * including everything above ASCII */ | |
0dd2cdef | 4383 | while (len--) { |
adfec831 | 4384 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4385 | *d++ = '\\'; |
4386 | *d++ = *s++; | |
4387 | } | |
79072805 | 4388 | } |
a0d0e21e | 4389 | *d = '\0'; |
349d4f2f | 4390 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4391 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4392 | } |
a0d0e21e LW |
4393 | else |
4394 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4395 | SETTARG; |
cfe40115 | 4396 | return NORMAL; |
79072805 LW |
4397 | } |
4398 | ||
838f2281 BF |
4399 | PP(pp_fc) |
4400 | { | |
838f2281 BF |
4401 | dTARGET; |
4402 | dSP; | |
4403 | SV *source = TOPs; | |
4404 | STRLEN len; | |
4405 | STRLEN min; | |
4406 | SV *dest; | |
4407 | const U8 *s; | |
4408 | const U8 *send; | |
4409 | U8 *d; | |
bfac13d4 | 4410 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
9b63e895 KW |
4411 | #if UNICODE_MAJOR_VERSION > 3 /* no multifolds in early Unicode */ \ |
4412 | || (UNICODE_MAJOR_VERSION == 3 && ( UNICODE_DOT_VERSION > 0) \ | |
4413 | || UNICODE_DOT_DOT_VERSION > 0) | |
a4b69695 KW |
4414 | const bool full_folding = TRUE; /* This variable is here so we can easily |
4415 | move to more generality later */ | |
9b63e895 KW |
4416 | #else |
4417 | const bool full_folding = FALSE; | |
4418 | #endif | |
838f2281 | 4419 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) |
130c5df3 KW |
4420 | #ifdef USE_LOCALE_CTYPE |
4421 | | ( IN_LC_RUNTIME(LC_CTYPE) ? FOLD_FLAGS_LOCALE : 0 ) | |
4422 | #endif | |
4423 | ; | |
838f2281 BF |
4424 | |
4425 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4426 | * You are welcome(?) -Hugmeir | |
4427 | */ | |
4428 | ||
4429 | SvGETMAGIC(source); | |
4430 | ||
4431 | dest = TARG; | |
4432 | ||
4433 | if (SvOK(source)) { | |
4434 | s = (const U8*)SvPV_nomg_const(source, len); | |
4435 | } else { | |
4436 | if (ckWARN(WARN_UNINITIALIZED)) | |
4437 | report_uninit(source); | |
4438 | s = (const U8*)""; | |
4439 | len = 0; | |
4440 | } | |
4441 | ||
4442 | min = len + 1; | |
4443 | ||
4444 | SvUPGRADE(dest, SVt_PV); | |
4445 | d = (U8*)SvGROW(dest, min); | |
4446 | (void)SvPOK_only(dest); | |
4447 | ||
4448 | SETs(dest); | |
4449 | ||
4450 | send = s + len; | |
4451 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ | |
838f2281 BF |
4452 | while (s < send) { |
4453 | const STRLEN u = UTF8SKIP(s); | |
4454 | STRLEN ulen; | |
4455 | ||
445bf929 | 4456 | _to_utf8_fold_flags(s, tmpbuf, &ulen, flags); |
838f2281 BF |
4457 | |
4458 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4459 | const UV o = d - (U8*)SvPVX_const(dest); | |
4460 | SvGROW(dest, min); | |
4461 | d = (U8*)SvPVX(dest) + o; | |
4462 | } | |
4463 | ||
4464 | Copy(tmpbuf, d, ulen, U8); | |
4465 | d += ulen; | |
4466 | s += u; | |
4467 | } | |
4468 | SvUTF8_on(dest); | |
838f2281 | 4469 | } /* Unflagged string */ |
0902dd32 | 4470 | else if (len) { |
130c5df3 | 4471 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4472 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ |
31f05a37 KW |
4473 | if (IN_UTF8_CTYPE_LOCALE) { |
4474 | goto do_uni_folding; | |
4475 | } | |
780fcc9f | 4476 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
838f2281 | 4477 | for (; s < send; d++, s++) |
ea36a843 | 4478 | *d = (U8) toFOLD_LC(*s); |
838f2281 | 4479 | } |
130c5df3 KW |
4480 | else |
4481 | #endif | |
4482 | if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
838f2281 | 4483 | for (; s < send; d++, s++) |
d22b930b | 4484 | *d = toFOLD(*s); |
838f2281 BF |
4485 | } |
4486 | else { | |
91191cf7 | 4487 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4488 | do_uni_folding: |
91191cf7 | 4489 | #endif |
d14578b8 KW |
4490 | /* For ASCII and the Latin-1 range, there's only two troublesome |
4491 | * folds, \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
22e255cb | 4492 | * casefolding becomes 'ss'; and \x{B5} (\N{MICRO SIGN}), which |
d14578b8 KW |
4493 | * under any fold becomes \x{3BC} (\N{GREEK SMALL LETTER MU}) -- |
4494 | * For the rest, the casefold is their lowercase. */ | |
838f2281 BF |
4495 | for (; s < send; d++, s++) { |
4496 | if (*s == MICRO_SIGN) { | |
d14578b8 KW |
4497 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
4498 | * which is outside of the latin-1 range. There's a couple | |
4499 | * of ways to deal with this -- khw discusses them in | |
4500 | * pp_lc/uc, so go there :) What we do here is upgrade what | |
4501 | * we had already casefolded, then enter an inner loop that | |
4502 | * appends the rest of the characters as UTF-8. */ | |
838f2281 BF |
4503 | len = d - (U8*)SvPVX_const(dest); |
4504 | SvCUR_set(dest, len); | |
4505 | len = sv_utf8_upgrade_flags_grow(dest, | |
4506 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
ea4d335b KW |
4507 | /* The max expansion for latin1 |
4508 | * chars is 1 byte becomes 2 */ | |
4509 | (send -s) * 2 + 1); | |
838f2281 BF |
4510 | d = (U8*)SvPVX(dest) + len; |
4511 | ||
a78bc3c6 KW |
4512 | Copy(GREEK_SMALL_LETTER_MU_UTF8, d, small_mu_len, U8); |
4513 | d += small_mu_len; | |
838f2281 BF |
4514 | s++; |
4515 | for (; s < send; s++) { | |
4516 | STRLEN ulen; | |
4517 | UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags); | |
6f2d5cbc | 4518 | if UVCHR_IS_INVARIANT(fc) { |
d14578b8 KW |
4519 | if (full_folding |
4520 | && *s == LATIN_SMALL_LETTER_SHARP_S) | |
4521 | { | |
838f2281 BF |
4522 | *d++ = 's'; |
4523 | *d++ = 's'; | |
4524 | } | |
4525 | else | |
4526 | *d++ = (U8)fc; | |
4527 | } | |
4528 | else { | |
4529 | Copy(tmpbuf, d, ulen, U8); | |
4530 | d += ulen; | |
4531 | } | |
4532 | } | |
4533 | break; | |
4534 | } | |
4535 | else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) { | |
d14578b8 KW |
4536 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4537 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4538 | if (SvLEN(dest) < ++min) { |
4539 | const UV o = d - (U8*)SvPVX_const(dest); | |
4540 | SvGROW(dest, min); | |
4541 | d = (U8*)SvPVX(dest) + o; | |
4542 | } | |
4543 | *(d)++ = 's'; | |
4544 | *d = 's'; | |
4545 | } | |
d14578b8 KW |
4546 | else { /* If it's not one of those two, the fold is their lower |
4547 | case */ | |
838f2281 BF |
4548 | *d = toLOWER_LATIN1(*s); |
4549 | } | |
4550 | } | |
4551 | } | |
4552 | } | |
4553 | *d = '\0'; | |
4554 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4555 | ||
130c5df3 | 4556 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4557 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4558 | TAINT; |
4559 | SvTAINTED_on(dest); | |
4560 | } | |
130c5df3 | 4561 | #endif |
838f2281 BF |
4562 | if (SvTAINTED(source)) |
4563 | SvTAINT(dest); | |
4564 | SvSETMAGIC(dest); | |
4565 | RETURN; | |
4566 | } | |
4567 | ||
a0d0e21e | 4568 | /* Arrays. */ |
79072805 | 4569 | |
a0d0e21e | 4570 | PP(pp_aslice) |
79072805 | 4571 | { |
20b7effb | 4572 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4573 | AV *const av = MUTABLE_AV(POPs); |
4574 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4575 | |
a0d0e21e | 4576 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4577 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4578 | bool can_preserve = FALSE; | |
4579 | ||
4580 | if (localizing) { | |
4581 | MAGIC *mg; | |
4582 | HV *stash; | |
4583 | ||
4584 | can_preserve = SvCANEXISTDELETE(av); | |
4585 | } | |
4586 | ||
4587 | if (lval && localizing) { | |
eb578fdb | 4588 | SV **svp; |
c70927a6 | 4589 | SSize_t max = -1; |
924508f0 | 4590 | for (svp = MARK + 1; svp <= SP; svp++) { |
c70927a6 | 4591 | const SSize_t elem = SvIV(*svp); |
748a9306 LW |
4592 | if (elem > max) |
4593 | max = elem; | |
4594 | } | |
4595 | if (max > AvMAX(av)) | |
4596 | av_extend(av, max); | |
4597 | } | |
4ad10a0b | 4598 | |
a0d0e21e | 4599 | while (++MARK <= SP) { |
eb578fdb | 4600 | SV **svp; |
c70927a6 | 4601 | SSize_t elem = SvIV(*MARK); |
4ad10a0b | 4602 | bool preeminent = TRUE; |
a0d0e21e | 4603 | |
4ad10a0b VP |
4604 | if (localizing && can_preserve) { |
4605 | /* If we can determine whether the element exist, | |
4606 | * Try to preserve the existenceness of a tied array | |
4607 | * element by using EXISTS and DELETE if possible. | |
4608 | * Fallback to FETCH and STORE otherwise. */ | |
4609 | preeminent = av_exists(av, elem); | |
4610 | } | |
4611 | ||
a0d0e21e LW |
4612 | svp = av_fetch(av, elem, lval); |
4613 | if (lval) { | |
ce0d59fd | 4614 | if (!svp || !*svp) |
cea2e8a9 | 4615 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4616 | if (localizing) { |
4617 | if (preeminent) | |
4618 | save_aelem(av, elem, svp); | |
4619 | else | |
4620 | SAVEADELETE(av, elem); | |
4621 | } | |
79072805 | 4622 | } |
3280af22 | 4623 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4624 | } |
4625 | } | |
82334630 | 4626 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 4627 | MARK = ORIGMARK; |
04ab2c87 | 4628 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4629 | SP = MARK; |
4630 | } | |
79072805 LW |
4631 | RETURN; |
4632 | } | |
4633 | ||
6dd3e0f2 RZ |
4634 | PP(pp_kvaslice) |
4635 | { | |
20b7effb | 4636 | dSP; dMARK; |
6dd3e0f2 RZ |
4637 | AV *const av = MUTABLE_AV(POPs); |
4638 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4639 | SSize_t items = SP - MARK; |
6dd3e0f2 RZ |
4640 | |
4641 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4642 | const I32 flags = is_lvalue_sub(); | |
4643 | if (flags) { | |
4644 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4645 | /* diag_listed_as: Can't modify %s in %s */ |
6dd3e0f2 RZ |
4646 | Perl_croak(aTHX_ "Can't modify index/value array slice in list assignment"); |
4647 | lval = flags; | |
4648 | } | |
4649 | } | |
4650 | ||
4651 | MEXTEND(SP,items); | |
4652 | while (items > 1) { | |
4653 | *(MARK+items*2-1) = *(MARK+items); | |
4654 | items--; | |
4655 | } | |
4656 | items = SP-MARK; | |
4657 | SP += items; | |
4658 | ||
4659 | while (++MARK <= SP) { | |
4660 | SV **svp; | |
4661 | ||
4662 | svp = av_fetch(av, SvIV(*MARK), lval); | |
4663 | if (lval) { | |
4664 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4665 | DIE(aTHX_ PL_no_aelem, SvIV(*MARK)); | |
4666 | } | |
4667 | *MARK = sv_mortalcopy(*MARK); | |
4668 | } | |
4669 | *++MARK = svp ? *svp : &PL_sv_undef; | |
4670 | } | |
82334630 | 4671 | if (GIMME_V != G_ARRAY) { |
6dd3e0f2 RZ |
4672 | MARK = SP - items*2; |
4673 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4674 | SP = MARK; | |
4675 | } | |
4676 | RETURN; | |
4677 | } | |
4678 | ||
b1c05ba5 | 4679 | |
878d132a NC |
4680 | PP(pp_aeach) |
4681 | { | |
878d132a | 4682 | dSP; |
502c6561 | 4683 | AV *array = MUTABLE_AV(POPs); |
878d132a | 4684 | const I32 gimme = GIMME_V; |
453d94a9 | 4685 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4686 | const IV current = (*iterp)++; |
4687 | ||
b9f2b683 | 4688 | if (current > av_tindex(array)) { |
878d132a NC |
4689 | *iterp = 0; |
4690 | if (gimme == G_SCALAR) | |
4691 | RETPUSHUNDEF; | |
4692 | else | |
4693 | RETURN; | |
4694 | } | |
4695 | ||
4696 | EXTEND(SP, 2); | |
e1dccc0d | 4697 | mPUSHi(current); |
878d132a NC |
4698 | if (gimme == G_ARRAY) { |
4699 | SV **const element = av_fetch(array, current, 0); | |
4700 | PUSHs(element ? *element : &PL_sv_undef); | |
4701 | } | |
4702 | RETURN; | |
4703 | } | |
4704 | ||
b1c05ba5 | 4705 | /* also used for: pp_avalues()*/ |
878d132a NC |
4706 | PP(pp_akeys) |
4707 | { | |
878d132a | 4708 | dSP; |
502c6561 | 4709 | AV *array = MUTABLE_AV(POPs); |
878d132a NC |
4710 | const I32 gimme = GIMME_V; |
4711 | ||
4712 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4713 | ||
4714 | if (gimme == G_SCALAR) { | |
4715 | dTARGET; | |
b9f2b683 | 4716 | PUSHi(av_tindex(array) + 1); |
878d132a NC |
4717 | } |
4718 | else if (gimme == G_ARRAY) { | |
4719 | IV n = Perl_av_len(aTHX_ array); | |
e1dccc0d | 4720 | IV i; |
878d132a NC |
4721 | |
4722 | EXTEND(SP, n + 1); | |
4723 | ||
26230909 | 4724 | if (PL_op->op_type == OP_AKEYS) { |
e1dccc0d | 4725 | for (i = 0; i <= n; i++) { |
878d132a NC |
4726 | mPUSHi(i); |
4727 | } | |
4728 | } | |
4729 | else { | |
4730 | for (i = 0; i <= n; i++) { | |
4731 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4732 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4733 | } | |
4734 | } | |
4735 | } | |
4736 | RETURN; | |
4737 | } | |
4738 | ||
79072805 LW |
4739 | /* Associative arrays. */ |
4740 | ||
4741 | PP(pp_each) | |
4742 | { | |
39644a26 | 4743 | dSP; |
85fbaab2 | 4744 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4745 | HE *entry; |
f54cb97a | 4746 | const I32 gimme = GIMME_V; |
8ec5e241 | 4747 | |
6d822dc4 | 4748 | entry = hv_iternext(hash); |
79072805 | 4749 | |
79072805 LW |
4750 | EXTEND(SP, 2); |
4751 | if (entry) { | |
1b6737cc | 4752 | SV* const sv = hv_iterkeysv(entry); |
2b32fed8 | 4753 | PUSHs(sv); |
54310121 | 4754 | if (gimme == G_ARRAY) { |
59af0135 | 4755 | SV *val; |
6d822dc4 | 4756 | val = hv_iterval(hash, entry); |
59af0135 | 4757 | PUSHs(val); |
79072805 | 4758 | } |
79072805 | 4759 | } |
54310121 | 4760 | else if (gimme == G_SCALAR) |
79072805 LW |
4761 | RETPUSHUNDEF; |
4762 | ||
4763 | RETURN; | |
4764 | } | |
4765 | ||
7332a6c4 VP |
4766 | STATIC OP * |
4767 | S_do_delete_local(pTHX) | |
79072805 | 4768 | { |
39644a26 | 4769 | dSP; |
f54cb97a | 4770 | const I32 gimme = GIMME_V; |
7332a6c4 VP |
4771 | const MAGIC *mg; |
4772 | HV *stash; | |
ca3f996a | 4773 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
626040f7 | 4774 | SV **unsliced_keysv = sliced ? NULL : sp--; |
ca3f996a | 4775 | SV * const osv = POPs; |
626040f7 | 4776 | SV **mark = sliced ? PL_stack_base + POPMARK : unsliced_keysv-1; |
ca3f996a FC |
4777 | dORIGMARK; |
4778 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 4779 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
4780 | const bool can_preserve = SvCANEXISTDELETE(osv); |
4781 | const U32 type = SvTYPE(osv); | |
626040f7 | 4782 | SV ** const end = sliced ? SP : unsliced_keysv; |
ca3f996a FC |
4783 | |
4784 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 4785 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 4786 | while (++MARK <= end) { |
7332a6c4 VP |
4787 | SV * const keysv = *MARK; |
4788 | SV *sv = NULL; | |
4789 | bool preeminent = TRUE; | |
4790 | if (can_preserve) | |
4791 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4792 | if (tied) { | |
4793 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4794 | if (he) | |
4795 | sv = HeVAL(he); | |
4796 | else | |
4797 | preeminent = FALSE; | |
4798 | } | |
4799 | else { | |
4800 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
4801 | if (preeminent) |
4802 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4803 | } |
4804 | if (preeminent) { | |
be6064fd | 4805 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
4806 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
4807 | if (tied) { | |
4808 | *MARK = sv_mortalcopy(sv); | |
4809 | mg_clear(sv); | |
4810 | } else | |
4811 | *MARK = sv; | |
4812 | } | |
4813 | else { | |
4814 | SAVEHDELETE(hv, keysv); | |
4815 | *MARK = &PL_sv_undef; | |
4816 | } | |
4817 | } | |
ca3f996a FC |
4818 | } |
4819 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
4820 | if (PL_op->op_flags & OPf_SPECIAL) { |
4821 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 4822 | while (++MARK <= end) { |
c70927a6 | 4823 | SSize_t idx = SvIV(*MARK); |
7332a6c4 VP |
4824 | SV *sv = NULL; |
4825 | bool preeminent = TRUE; | |
4826 | if (can_preserve) | |
4827 | preeminent = av_exists(av, idx); | |
4828 | if (tied) { | |
4829 | SV **svp = av_fetch(av, idx, 1); | |
4830 | if (svp) | |
4831 | sv = *svp; | |
4832 | else | |
4833 | preeminent = FALSE; | |
4834 | } | |
4835 | else { | |
4836 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
4837 | if (preeminent) |
4838 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4839 | } |
4840 | if (preeminent) { | |
4841 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4842 | if (tied) { | |
4843 | *MARK = sv_mortalcopy(sv); | |
4844 | mg_clear(sv); | |
4845 | } else | |
4846 | *MARK = sv; | |
4847 | } | |
4848 | else { | |
4849 | SAVEADELETE(av, idx); | |
4850 | *MARK = &PL_sv_undef; | |
4851 | } | |
4852 | } | |
4853 | } | |
ca3f996a FC |
4854 | else |
4855 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4856 | } | |
4857 | else | |
7332a6c4 | 4858 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 4859 | if (sliced) { |
7332a6c4 VP |
4860 | if (gimme == G_VOID) |
4861 | SP = ORIGMARK; | |
4862 | else if (gimme == G_SCALAR) { | |
4863 | MARK = ORIGMARK; | |
4864 | if (SP > MARK) | |
4865 | *++MARK = *SP; | |
4866 | else | |
4867 | *++MARK = &PL_sv_undef; | |
4868 | SP = MARK; | |
4869 | } | |
4870 | } | |
ca3f996a | 4871 | else if (gimme != G_VOID) |
626040f7 | 4872 | PUSHs(*unsliced_keysv); |
7332a6c4 VP |
4873 | |
4874 | RETURN; | |
4875 | } | |
4876 | ||
4877 | PP(pp_delete) | |
4878 | { | |
7332a6c4 VP |
4879 | dSP; |
4880 | I32 gimme; | |
4881 | I32 discard; | |
4882 | ||
4883 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4884 | return do_delete_local(); | |
4885 | ||
4886 | gimme = GIMME_V; | |
4887 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4888 | |
533c011a | 4889 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 4890 | dMARK; dORIGMARK; |
85fbaab2 | 4891 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4892 | const U32 hvtype = SvTYPE(hv); |
01020589 GS |
4893 | if (hvtype == SVt_PVHV) { /* hash element */ |
4894 | while (++MARK <= SP) { | |
1b6737cc | 4895 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
4896 | *MARK = sv ? sv : &PL_sv_undef; |
4897 | } | |
5f05dabc | 4898 | } |
6d822dc4 MS |
4899 | else if (hvtype == SVt_PVAV) { /* array element */ |
4900 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4901 | while (++MARK <= SP) { | |
502c6561 | 4902 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
6d822dc4 MS |
4903 | *MARK = sv ? sv : &PL_sv_undef; |
4904 | } | |
4905 | } | |
01020589 GS |
4906 | } |
4907 | else | |
4908 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4909 | if (discard) |
4910 | SP = ORIGMARK; | |
4911 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4912 | MARK = ORIGMARK; |
9111c9c0 DM |
4913 | if (SP > MARK) |
4914 | *++MARK = *SP; | |
4915 | else | |
4916 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4917 | SP = MARK; |
4918 | } | |
4919 | } | |
4920 | else { | |
4921 | SV *keysv = POPs; | |
85fbaab2 | 4922 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4923 | SV *sv = NULL; |
97fcbf96 MB |
4924 | if (SvTYPE(hv) == SVt_PVHV) |
4925 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4926 | else if (SvTYPE(hv) == SVt_PVAV) { |
4927 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4928 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4929 | else |
4930 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4931 | } |
97fcbf96 | 4932 | else |
cea2e8a9 | 4933 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4934 | if (!sv) |
3280af22 | 4935 | sv = &PL_sv_undef; |
54310121 | 4936 | if (!discard) |
4937 | PUSHs(sv); | |
79072805 | 4938 | } |
79072805 LW |
4939 | RETURN; |
4940 | } | |
4941 | ||
a0d0e21e | 4942 | PP(pp_exists) |
79072805 | 4943 | { |
39644a26 | 4944 | dSP; |
afebc493 GS |
4945 | SV *tmpsv; |
4946 | HV *hv; | |
4947 | ||
c7e88ff3 | 4948 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 4949 | GV *gv; |
0bd48802 | 4950 | SV * const sv = POPs; |
f2c0649b | 4951 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
4952 | if (cv) |
4953 | RETPUSHYES; | |
4954 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
4955 | RETPUSHYES; | |
4956 | RETPUSHNO; | |
4957 | } | |
4958 | tmpsv = POPs; | |
85fbaab2 | 4959 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 4960 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 4961 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 4962 | RETPUSHYES; |
ef54e1a4 JH |
4963 | } |
4964 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 4965 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 4966 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
4967 | RETPUSHYES; |
4968 | } | |
ef54e1a4 JH |
4969 | } |
4970 | else { | |
cea2e8a9 | 4971 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 4972 | } |
a0d0e21e LW |
4973 | RETPUSHNO; |
4974 | } | |
79072805 | 4975 | |
a0d0e21e LW |
4976 | PP(pp_hslice) |
4977 | { | |
20b7effb | 4978 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4979 | HV * const hv = MUTABLE_HV(POPs); |
4980 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 4981 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 4982 | bool can_preserve = FALSE; |
79072805 | 4983 | |
eb85dfd3 DM |
4984 | if (localizing) { |
4985 | MAGIC *mg; | |
4986 | HV *stash; | |
4987 | ||
2c5f48c2 | 4988 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 4989 | can_preserve = TRUE; |
eb85dfd3 DM |
4990 | } |
4991 | ||
6d822dc4 | 4992 | while (++MARK <= SP) { |
1b6737cc | 4993 | SV * const keysv = *MARK; |
6d822dc4 MS |
4994 | SV **svp; |
4995 | HE *he; | |
d30e492c VP |
4996 | bool preeminent = TRUE; |
4997 | ||
4998 | if (localizing && can_preserve) { | |
4999 | /* If we can determine whether the element exist, | |
5000 | * try to preserve the existenceness of a tied hash | |
5001 | * element by using EXISTS and DELETE if possible. | |
5002 | * Fallback to FETCH and STORE otherwise. */ | |
5003 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 5004 | } |
eb85dfd3 | 5005 | |
6d822dc4 | 5006 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 5007 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 5008 | |
6d822dc4 | 5009 | if (lval) { |
746f6409 | 5010 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 5011 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
5012 | } |
5013 | if (localizing) { | |
7a2e501a | 5014 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 5015 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
5016 | else if (preeminent) |
5017 | save_helem_flags(hv, keysv, svp, | |
5018 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
5019 | else | |
5020 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
5021 | } |
5022 | } | |
746f6409 | 5023 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 5024 | } |
82334630 | 5025 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 5026 | MARK = ORIGMARK; |
04ab2c87 | 5027 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 5028 | SP = MARK; |
79072805 | 5029 | } |
a0d0e21e LW |
5030 | RETURN; |
5031 | } | |
5032 | ||
5cae3edb RZ |
5033 | PP(pp_kvhslice) |
5034 | { | |
20b7effb | 5035 | dSP; dMARK; |
5cae3edb RZ |
5036 | HV * const hv = MUTABLE_HV(POPs); |
5037 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 5038 | SSize_t items = SP - MARK; |
5cae3edb RZ |
5039 | |
5040 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
5041 | const I32 flags = is_lvalue_sub(); | |
5042 | if (flags) { | |
5043 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 5044 | /* diag_listed_as: Can't modify %s in %s */ |
5cae3edb RZ |
5045 | Perl_croak(aTHX_ "Can't modify key/value hash slice in list assignment"); |
5046 | lval = flags; | |
5047 | } | |
5048 | } | |
5049 | ||
5050 | MEXTEND(SP,items); | |
5051 | while (items > 1) { | |
5052 | *(MARK+items*2-1) = *(MARK+items); | |
5053 | items--; | |
5054 | } | |
5055 | items = SP-MARK; | |
5056 | SP += items; | |
5057 | ||
5058 | while (++MARK <= SP) { | |
5059 | SV * const keysv = *MARK; | |
5060 | SV **svp; | |
5061 | HE *he; | |
5062 | ||
5063 | he = hv_fetch_ent(hv, keysv, lval, 0); | |
5064 | svp = he ? &HeVAL(he) : NULL; | |
5065 | ||
5066 | if (lval) { | |
5067 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
5068 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
5069 | } | |
5070 | *MARK = sv_mortalcopy(*MARK); | |
5071 | } | |
5072 | *++MARK = svp && *svp ? *svp : &PL_sv_undef; | |
5073 | } | |
82334630 | 5074 | if (GIMME_V != G_ARRAY) { |
5cae3edb RZ |
5075 | MARK = SP - items*2; |
5076 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
5077 | SP = MARK; | |
5078 | } | |
5079 | RETURN; | |
5080 | } | |
5081 | ||
a0d0e21e LW |
5082 | /* List operators. */ |
5083 | ||
5084 | PP(pp_list) | |
5085 | { | |
4fa715fa | 5086 | I32 markidx = POPMARK; |
82334630 | 5087 | if (GIMME_V != G_ARRAY) { |
4fa715fa DD |
5088 | SV **mark = PL_stack_base + markidx; |
5089 | dSP; | |
a0d0e21e LW |
5090 | if (++MARK <= SP) |
5091 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 5092 | else |
3280af22 | 5093 | *MARK = &PL_sv_undef; |
a0d0e21e | 5094 | SP = MARK; |
4fa715fa | 5095 | PUTBACK; |
79072805 | 5096 | } |
4fa715fa | 5097 | return NORMAL; |
79072805 LW |
5098 | } |
5099 | ||
a0d0e21e | 5100 | PP(pp_lslice) |
79072805 | 5101 | { |
39644a26 | 5102 | dSP; |
1b6737cc AL |
5103 | SV ** const lastrelem = PL_stack_sp; |
5104 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
5105 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 5106 | SV ** const firstrelem = lastlelem + 1; |
706a6ebc | 5107 | const U8 mod = PL_op->op_flags & OPf_MOD; |
1b6737cc | 5108 | |
eb578fdb KW |
5109 | const I32 max = lastrelem - lastlelem; |
5110 | SV **lelem; | |
a0d0e21e | 5111 | |
82334630 | 5112 | if (GIMME_V != G_ARRAY) { |
4ea561bc | 5113 | I32 ix = SvIV(*lastlelem); |
748a9306 LW |
5114 | if (ix < 0) |
5115 | ix += max; | |
a0d0e21e | 5116 | if (ix < 0 || ix >= max) |
3280af22 | 5117 | *firstlelem = &PL_sv_undef; |
a0d0e21e LW |
5118 | else |
5119 | *firstlelem = firstrelem[ix]; | |
5120 | SP = firstlelem; | |
5121 | RETURN; | |
5122 | } | |
5123 | ||
5124 | if (max == 0) { | |
5125 | SP = firstlelem - 1; | |
5126 | RETURN; | |
5127 | } | |
5128 | ||
5129 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 5130 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 5131 | if (ix < 0) |
a0d0e21e | 5132 | ix += max; |
c73bf8e3 HS |
5133 | if (ix < 0 || ix >= max) |
5134 | *lelem = &PL_sv_undef; | |
5135 | else { | |
c73bf8e3 | 5136 | if (!(*lelem = firstrelem[ix])) |
3280af22 | 5137 | *lelem = &PL_sv_undef; |
60779a30 | 5138 | else if (mod && SvPADTMP(*lelem)) { |
706a6ebc | 5139 | *lelem = firstrelem[ix] = sv_mortalcopy(*lelem); |
60779a30 | 5140 | } |
748a9306 | 5141 | } |
79072805 | 5142 | } |
cbce292e | 5143 | SP = lastlelem; |
79072805 LW |
5144 | RETURN; |
5145 | } | |
5146 | ||
a0d0e21e LW |
5147 | PP(pp_anonlist) |
5148 | { | |
20b7effb | 5149 | dSP; dMARK; |
1b6737cc | 5150 | const I32 items = SP - MARK; |
ad64d0ec | 5151 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 5152 | SP = MARK; |
6e449a3a MHM |
5153 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
5154 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
5155 | RETURN; |
5156 | } | |
5157 | ||
5158 | PP(pp_anonhash) | |
79072805 | 5159 | { |
20b7effb | 5160 | dSP; dMARK; dORIGMARK; |
67e67fd7 | 5161 | HV* const hv = newHV(); |
8d455b9f | 5162 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 5163 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 5164 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
5165 | |
5166 | while (MARK < SP) { | |
3ed356df FC |
5167 | SV * const key = |
5168 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
5169 | SV *val; | |
a0d0e21e | 5170 | if (MARK < SP) |
3ed356df FC |
5171 | { |
5172 | MARK++; | |
5173 | SvGETMAGIC(*MARK); | |
5174 | val = newSV(0); | |
d187b712 | 5175 | sv_setsv_nomg(val, *MARK); |
3ed356df | 5176 | } |
a2a5de95 | 5177 | else |
3ed356df | 5178 | { |
a2a5de95 | 5179 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
5180 | val = newSV(0); |
5181 | } | |
f12c7020 | 5182 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 5183 | } |
a0d0e21e | 5184 | SP = ORIGMARK; |
8d455b9f | 5185 | XPUSHs(retval); |
79072805 LW |
5186 | RETURN; |
5187 | } | |
5188 | ||
d4fc4415 FC |
5189 | static AV * |
5190 | S_deref_plain_array(pTHX_ AV *ary) | |
5191 | { | |
5192 | if (SvTYPE(ary) == SVt_PVAV) return ary; | |
d2d95e13 | 5193 | SvGETMAGIC((SV *)ary); |
d4fc4415 FC |
5194 | if (!SvROK(ary) || SvTYPE(SvRV(ary)) != SVt_PVAV) |
5195 | Perl_die(aTHX_ "Not an ARRAY reference"); | |
5196 | else if (SvOBJECT(SvRV(ary))) | |
5197 | Perl_die(aTHX_ "Not an unblessed ARRAY reference"); | |
5198 | return (AV *)SvRV(ary); | |
5199 | } | |
5200 | ||
5201 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
5202 | # define DEREF_PLAIN_ARRAY(ary) \ | |
5203 | ({ \ | |
5204 | AV *aRrRay = ary; \ | |
5205 | SvTYPE(aRrRay) == SVt_PVAV \ | |
5206 | ? aRrRay \ | |
5207 | : S_deref_plain_array(aTHX_ aRrRay); \ | |
5208 | }) | |
5209 | #else | |
5210 | # define DEREF_PLAIN_ARRAY(ary) \ | |
5211 | ( \ | |
3b0f6d32 | 5212 | PL_Sv = (SV *)(ary), \ |
d4fc4415 FC |
5213 | SvTYPE(PL_Sv) == SVt_PVAV \ |
5214 | ? (AV *)PL_Sv \ | |
3b0f6d32 | 5215 | : S_deref_plain_array(aTHX_ (AV *)PL_Sv) \ |
d4fc4415 FC |
5216 | ) |
5217 | #endif | |
5218 | ||
a0d0e21e | 5219 | PP(pp_splice) |
79072805 | 5220 | { |
20b7effb | 5221 | dSP; dMARK; dORIGMARK; |
5cd408a2 | 5222 | int num_args = (SP - MARK); |
eb578fdb KW |
5223 | AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
5224 | SV **src; | |
5225 | SV **dst; | |
c70927a6 FC |
5226 | SSize_t i; |
5227 | SSize_t offset; | |
5228 | SSize_t length; | |
5229 | SSize_t newlen; | |
5230 | SSize_t after; | |
5231 | SSize_t diff; | |
ad64d0ec | 5232 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5233 | |
1b6737cc | 5234 | if (mg) { |
3e0cb5de | 5235 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
5236 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
5237 | sp - mark); | |
93965878 | 5238 | } |
79072805 | 5239 | |
a0d0e21e | 5240 | SP++; |
79072805 | 5241 | |
a0d0e21e | 5242 | if (++MARK < SP) { |
4ea561bc | 5243 | offset = i = SvIV(*MARK); |
a0d0e21e | 5244 | if (offset < 0) |
93965878 | 5245 | offset += AvFILLp(ary) + 1; |
84902520 | 5246 | if (offset < 0) |
cea2e8a9 | 5247 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
5248 | if (++MARK < SP) { |
5249 | length = SvIVx(*MARK++); | |
48cdf507 GA |
5250 | if (length < 0) { |
5251 | length += AvFILLp(ary) - offset + 1; | |
5252 | if (length < 0) | |
5253 | length = 0; | |
5254 | } | |
79072805 LW |
5255 | } |
5256 | else | |
a0d0e21e | 5257 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 5258 | } |
a0d0e21e LW |
5259 | else { |
5260 | offset = 0; | |
5261 | length = AvMAX(ary) + 1; | |
5262 | } | |
8cbc2e3b | 5263 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
5264 | if (num_args > 2) |
5265 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 5266 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 5267 | } |
93965878 | 5268 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
5269 | if (after < 0) { /* not that much array */ |
5270 | length += after; /* offset+length now in array */ | |
5271 | after = 0; | |
5272 | if (!AvALLOC(ary)) | |
5273 | av_extend(ary, 0); | |
5274 | } | |
5275 | ||
5276 | /* At this point, MARK .. SP-1 is our new LIST */ | |
5277 | ||
5278 | newlen = SP - MARK; | |
5279 | diff = newlen - length; | |
13d7cbc1 GS |
5280 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
5281 | av_reify(ary); | |
a0d0e21e | 5282 | |
50528de0 WL |
5283 | /* make new elements SVs now: avoid problems if they're from the array */ |
5284 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 5285 | SV * const h = *dst; |
f2b990bf | 5286 | *dst++ = newSVsv(h); |
50528de0 WL |
5287 | } |
5288 | ||
a0d0e21e | 5289 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 5290 | SV **tmparyval = NULL; |
a0d0e21e | 5291 | if (newlen) { |
a02a5408 | 5292 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 5293 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 5294 | } |
a0d0e21e LW |
5295 | |
5296 | MARK = ORIGMARK + 1; | |
82334630 | 5297 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
31c61add | 5298 | const bool real = cBOOL(AvREAL(ary)); |
a0d0e21e | 5299 | MEXTEND(MARK, length); |
31c61add | 5300 | if (real) |
bbce6d69 | 5301 | EXTEND_MORTAL(length); |
31c61add FC |
5302 | for (i = 0, dst = MARK; i < length; i++) { |
5303 | if ((*dst = AvARRAY(ary)[i+offset])) { | |
5304 | if (real) | |
486ec47a | 5305 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5306 | } |
31c61add FC |
5307 | else |
5308 | *dst = &PL_sv_undef; | |
5309 | dst++; | |
a0d0e21e LW |
5310 | } |
5311 | MARK += length - 1; | |
79072805 | 5312 | } |
a0d0e21e LW |
5313 | else { |
5314 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5315 | if (AvREAL(ary)) { | |
d689ffdd | 5316 | sv_2mortal(*MARK); |
a0d0e21e LW |
5317 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5318 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5319 | } |
a0d0e21e | 5320 | } |
93965878 | 5321 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5322 | |
5323 | /* pull up or down? */ | |
5324 | ||
5325 | if (offset < after) { /* easier to pull up */ | |
5326 | if (offset) { /* esp. if nothing to pull */ | |
5327 | src = &AvARRAY(ary)[offset-1]; | |
5328 | dst = src - diff; /* diff is negative */ | |
5329 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5330 | *dst-- = *src--; | |
79072805 | 5331 | } |
a0d0e21e | 5332 | dst = AvARRAY(ary); |
9c6bc640 | 5333 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5334 | AvMAX(ary) += diff; |
5335 | } | |
5336 | else { | |
5337 | if (after) { /* anything to pull down? */ | |
5338 | src = AvARRAY(ary) + offset + length; | |
5339 | dst = src + diff; /* diff is negative */ | |
5340 | Move(src, dst, after, SV*); | |
79072805 | 5341 | } |
93965878 | 5342 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5343 | /* avoid later double free */ |
5344 | } | |
5345 | i = -diff; | |
5346 | while (i) | |
ce0d59fd | 5347 | dst[--i] = NULL; |
a0d0e21e LW |
5348 | |
5349 | if (newlen) { | |
50528de0 | 5350 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5351 | Safefree(tmparyval); |
5352 | } | |
5353 | } | |
5354 | else { /* no, expanding (or same) */ | |
d3961450 | 5355 | SV** tmparyval = NULL; |
a0d0e21e | 5356 | if (length) { |
a02a5408 | 5357 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5358 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5359 | } | |
5360 | ||
5361 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5362 | /* push up or down? */ |
a0d0e21e LW |
5363 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5364 | if (offset) { | |
5365 | src = AvARRAY(ary); | |
5366 | dst = src - diff; | |
5367 | Move(src, dst, offset, SV*); | |
79072805 | 5368 | } |
9c6bc640 | 5369 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5370 | AvMAX(ary) += diff; |
93965878 | 5371 | AvFILLp(ary) += diff; |
79072805 LW |
5372 | } |
5373 | else { | |
93965878 NIS |
5374 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5375 | av_extend(ary, AvFILLp(ary) + diff); | |
5376 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5377 | |
5378 | if (after) { | |
93965878 | 5379 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5380 | src = dst - diff; |
5381 | for (i = after; i; i--) { | |
5382 | *dst-- = *src--; | |
5383 | } | |
79072805 LW |
5384 | } |
5385 | } | |
a0d0e21e LW |
5386 | } |
5387 | ||
50528de0 WL |
5388 | if (newlen) { |
5389 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5390 | } |
50528de0 | 5391 | |
a0d0e21e | 5392 | MARK = ORIGMARK + 1; |
82334630 | 5393 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
a0d0e21e | 5394 | if (length) { |
31c61add FC |
5395 | const bool real = cBOOL(AvREAL(ary)); |
5396 | if (real) | |
bbce6d69 | 5397 | EXTEND_MORTAL(length); |
31c61add FC |
5398 | for (i = 0, dst = MARK; i < length; i++) { |
5399 | if ((*dst = tmparyval[i])) { | |
5400 | if (real) | |
486ec47a | 5401 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5402 | } |
31c61add FC |
5403 | else *dst = &PL_sv_undef; |
5404 | dst++; | |
79072805 LW |
5405 | } |
5406 | } | |
a0d0e21e LW |
5407 | MARK += length - 1; |
5408 | } | |
5409 | else if (length--) { | |
5410 | *MARK = tmparyval[length]; | |
5411 | if (AvREAL(ary)) { | |
d689ffdd | 5412 | sv_2mortal(*MARK); |
a0d0e21e LW |
5413 | while (length-- > 0) |
5414 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5415 | } |
79072805 | 5416 | } |
a0d0e21e | 5417 | else |
3280af22 | 5418 | *MARK = &PL_sv_undef; |
d3961450 | 5419 | Safefree(tmparyval); |
79072805 | 5420 | } |
474af990 FR |
5421 | |
5422 | if (SvMAGICAL(ary)) | |
5423 | mg_set(MUTABLE_SV(ary)); | |
5424 | ||
a0d0e21e | 5425 | SP = MARK; |
79072805 LW |
5426 | RETURN; |
5427 | } | |
5428 | ||
a0d0e21e | 5429 | PP(pp_push) |
79072805 | 5430 | { |
20b7effb | 5431 | dSP; dMARK; dORIGMARK; dTARGET; |
eb578fdb | 5432 | AV * const ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5433 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5434 | |
1b6737cc | 5435 | if (mg) { |
ad64d0ec | 5436 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5437 | PUSHMARK(MARK); |
5438 | PUTBACK; | |
d343c3ef | 5439 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5440 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5441 | LEAVE_with_name("call_PUSH"); |
01072573 | 5442 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5443 | } |
a60c0954 | 5444 | else { |
cb077ed2 | 5445 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5446 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5447 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5448 | SV *sv; |
5449 | if (*MARK) SvGETMAGIC(*MARK); | |
5450 | sv = newSV(0); | |
a60c0954 | 5451 | if (*MARK) |
3ed356df | 5452 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5453 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5454 | } |
354b0578 | 5455 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5456 | mg_set(MUTABLE_SV(ary)); |
89c14e2e BB |
5457 | |
5458 | PL_delaymagic = 0; | |
6eeabd23 VP |
5459 | } |
5460 | SP = ORIGMARK; | |
5461 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5462 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5463 | } |
79072805 LW |
5464 | RETURN; |
5465 | } | |
5466 | ||
b1c05ba5 | 5467 | /* also used for: pp_pop()*/ |
a0d0e21e | 5468 | PP(pp_shift) |
79072805 | 5469 | { |
39644a26 | 5470 | dSP; |
538f5756 | 5471 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
d4fc4415 | 5472 | ? MUTABLE_AV(GvAV(PL_defgv)) : DEREF_PLAIN_ARRAY(MUTABLE_AV(POPs)); |
789b4bc9 | 5473 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5474 | EXTEND(SP, 1); |
c2b4a044 | 5475 | assert (sv); |
d689ffdd | 5476 | if (AvREAL(av)) |
a0d0e21e LW |
5477 | (void)sv_2mortal(sv); |
5478 | PUSHs(sv); | |
79072805 | 5479 | RETURN; |
79072805 LW |
5480 | } |
5481 | ||
a0d0e21e | 5482 | PP(pp_unshift) |
79072805 | 5483 | { |
20b7effb | 5484 | dSP; dMARK; dORIGMARK; dTARGET; |
eb578fdb | 5485 | AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5486 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5487 | |
1b6737cc | 5488 | if (mg) { |
ad64d0ec | 5489 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5490 | PUSHMARK(MARK); |
93965878 | 5491 | PUTBACK; |
d343c3ef | 5492 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5493 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5494 | LEAVE_with_name("call_UNSHIFT"); |
01072573 | 5495 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5496 | } |
a60c0954 | 5497 | else { |
c70927a6 | 5498 | SSize_t i = 0; |
a60c0954 NIS |
5499 | av_unshift(ary, SP - MARK); |
5500 | while (MARK < SP) { | |
1b6737cc | 5501 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5502 | (void)av_store(ary, i++, sv); |
5503 | } | |
79072805 | 5504 | } |
a0d0e21e | 5505 | SP = ORIGMARK; |
6eeabd23 | 5506 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5507 | PUSHi( AvFILL(ary) + 1 ); |
5508 | } | |
79072805 | 5509 | RETURN; |
79072805 LW |
5510 | } |
5511 | ||
a0d0e21e | 5512 | PP(pp_reverse) |
79072805 | 5513 | { |
20b7effb | 5514 | dSP; dMARK; |
79072805 | 5515 | |
82334630 | 5516 | if (GIMME_V == G_ARRAY) { |
484c818f VP |
5517 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5518 | AV *av; | |
5519 | ||
5520 | /* See pp_sort() */ | |
5521 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5522 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5523 | av = MUTABLE_AV((*SP)); | |
5524 | /* In-place reversing only happens in void context for the array | |
5525 | * assignment. We don't need to push anything on the stack. */ | |
5526 | SP = MARK; | |
5527 | ||
5528 | if (SvMAGICAL(av)) { | |
c70927a6 | 5529 | SSize_t i, j; |
eb578fdb | 5530 | SV *tmp = sv_newmortal(); |
484c818f VP |
5531 | /* For SvCANEXISTDELETE */ |
5532 | HV *stash; | |
5533 | const MAGIC *mg; | |
5534 | bool can_preserve = SvCANEXISTDELETE(av); | |
5535 | ||
b9f2b683 | 5536 | for (i = 0, j = av_tindex(av); i < j; ++i, --j) { |
eb578fdb | 5537 | SV *begin, *end; |
484c818f VP |
5538 | |
5539 | if (can_preserve) { | |
5540 | if (!av_exists(av, i)) { | |
5541 | if (av_exists(av, j)) { | |
eb578fdb | 5542 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5543 | begin = *av_fetch(av, i, TRUE); |
5544 | sv_setsv_mg(begin, sv); | |
5545 | } | |
5546 | continue; | |
5547 | } | |
5548 | else if (!av_exists(av, j)) { | |
eb578fdb | 5549 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5550 | end = *av_fetch(av, j, TRUE); |
5551 | sv_setsv_mg(end, sv); | |
5552 | continue; | |
5553 | } | |
5554 | } | |
5555 | ||
5556 | begin = *av_fetch(av, i, TRUE); | |
5557 | end = *av_fetch(av, j, TRUE); | |
5558 | sv_setsv(tmp, begin); | |
5559 | sv_setsv_mg(begin, end); | |
5560 | sv_setsv_mg(end, tmp); | |
5561 | } | |
5562 | } | |
5563 | else { | |
5564 | SV **begin = AvARRAY(av); | |
484c818f | 5565 | |
95a26d8e VP |
5566 | if (begin) { |
5567 | SV **end = begin + AvFILLp(av); | |
5568 | ||
5569 | while (begin < end) { | |
eb578fdb | 5570 | SV * const tmp = *begin; |
95a26d8e VP |
5571 | *begin++ = *end; |
5572 | *end-- = tmp; | |
5573 | } | |
484c818f VP |
5574 | } |
5575 | } | |
5576 | } | |
5577 | else { | |
5578 | SV **oldsp = SP; | |
5579 | MARK++; | |
5580 | while (MARK < SP) { | |
eb578fdb | 5581 | SV * const tmp = *MARK; |
484c818f VP |
5582 | *MARK++ = *SP; |
5583 | *SP-- = tmp; | |
5584 | } | |
5585 | /* safe as long as stack cannot get extended in the above */ | |
5586 | SP = oldsp; | |
a0d0e21e | 5587 | } |
79072805 LW |
5588 | } |
5589 | else { | |
eb578fdb KW |
5590 | char *up; |
5591 | char *down; | |
5592 | I32 tmp; | |
a0d0e21e LW |
5593 | dTARGET; |
5594 | STRLEN len; | |
79072805 | 5595 | |
7e2040f0 | 5596 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5597 | if (SP - MARK > 1) |
3280af22 | 5598 | do_join(TARG, &PL_sv_no, MARK, SP); |
1e21d011 | 5599 | else { |
64d3d9fe | 5600 | sv_setsv(TARG, SP > MARK ? *SP : DEFSV); |
1e21d011 B |
5601 | } |
5602 | ||
a0d0e21e LW |
5603 | up = SvPV_force(TARG, len); |
5604 | if (len > 1) { | |
7e2040f0 | 5605 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5606 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5607 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5608 | while (s < send) { |
d742c382 | 5609 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5610 | s++; |
5611 | continue; | |
5612 | } | |
5613 | else { | |
4b88fb76 | 5614 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5615 | break; |
dfe13c55 | 5616 | up = (char*)s; |
a0ed51b3 | 5617 | s += UTF8SKIP(s); |
dfe13c55 | 5618 | down = (char*)(s - 1); |
a0dbb045 | 5619 | /* reverse this character */ |
a0ed51b3 LW |
5620 | while (down > up) { |
5621 | tmp = *up; | |
5622 | *up++ = *down; | |
eb160463 | 5623 | *down-- = (char)tmp; |
a0ed51b3 LW |
5624 | } |
5625 | } | |
5626 | } | |
5627 | up = SvPVX(TARG); | |
5628 | } | |
a0d0e21e LW |
5629 | down = SvPVX(TARG) + len - 1; |
5630 | while (down > up) { | |
5631 | tmp = *up; | |
5632 | *up++ = *down; | |
eb160463 | 5633 | *down-- = (char)tmp; |
a0d0e21e | 5634 | } |
3aa33fe5 | 5635 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5636 | } |
a0d0e21e LW |
5637 | SP = MARK + 1; |
5638 | SETTARG; | |
79072805 | 5639 | } |
a0d0e21e | 5640 | RETURN; |
79072805 LW |
5641 | } |
5642 | ||
a0d0e21e | 5643 | PP(pp_split) |
79072805 | 5644 | { |
20b7effb | 5645 | dSP; dTARG; |
ef7999f1 | 5646 | AV *ary = PL_op->op_flags & OPf_STACKED ? (AV *)POPs : NULL; |
eb578fdb | 5647 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5648 | SV * const sv = POPs; |
a0d0e21e | 5649 | STRLEN len; |
eb578fdb | 5650 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5651 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 5652 | const char *strend = s + len; |
eb578fdb KW |
5653 | PMOP *pm; |
5654 | REGEXP *rx; | |
5655 | SV *dstr; | |
5656 | const char *m; | |
c70927a6 | 5657 | SSize_t iters = 0; |
d14578b8 KW |
5658 | const STRLEN slen = do_utf8 |
5659 | ? utf8_length((U8*)s, (U8*)strend) | |
5660 | : (STRLEN)(strend - s); | |
c70927a6 | 5661 | SSize_t maxiters = slen + 10; |
c1a7495a | 5662 | I32 trailing_empty = 0; |
727b7506 | 5663 | const char *orig; |
052a7c76 | 5664 | const IV origlimit = limit; |
a0d0e21e LW |
5665 | I32 realarray = 0; |
5666 | I32 base; | |
f54cb97a | 5667 | const I32 gimme = GIMME_V; |
941446f6 | 5668 | bool gimme_scalar; |
f54cb97a | 5669 | const I32 oldsave = PL_savestack_ix; |
437d3b4e | 5670 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5671 | bool multiline = 0; |
b37c2d43 | 5672 | MAGIC *mg = NULL; |
79072805 | 5673 | |
44a8e56a | 5674 | #ifdef DEBUGGING |
5675 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
5676 | #else | |
5677 | pm = (PMOP*)POPs; | |
5678 | #endif | |
b3941ae9 | 5679 | if (!pm) |
5637ef5b | 5680 | DIE(aTHX_ "panic: pp_split, pm=%p, s=%p", pm, s); |
aaa362c4 | 5681 | rx = PM_GETRE(pm); |
bbce6d69 | 5682 | |
a62b1201 | 5683 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 5684 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5685 | |
971a9dd3 | 5686 | #ifdef USE_ITHREADS |
20e98b0f | 5687 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
159b6efe | 5688 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
bf7d93ea | 5689 | goto have_av; |
20e98b0f | 5690 | } |
971a9dd3 | 5691 | #else |
20e98b0f NC |
5692 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
5693 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
bf7d93ea | 5694 | goto have_av; |
971a9dd3 | 5695 | } |
20e98b0f | 5696 | #endif |
ef7999f1 FC |
5697 | else if (pm->op_targ) |
5698 | ary = (AV *)PAD_SVl(pm->op_targ); | |
bcea25a7 | 5699 | if (ary) { |
bf7d93ea | 5700 | have_av: |
a0d0e21e | 5701 | realarray = 1; |
8ec5e241 | 5702 | PUTBACK; |
a0d0e21e | 5703 | av_extend(ary,0); |
821956c5 | 5704 | (void)sv_2mortal(SvREFCNT_inc_simple_NN(sv)); |
a0d0e21e | 5705 | av_clear(ary); |
8ec5e241 | 5706 | SPAGAIN; |
ad64d0ec | 5707 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5708 | PUSHMARK(SP); |
ad64d0ec | 5709 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5710 | } |
5711 | else { | |
1c0b011c | 5712 | if (!AvREAL(ary)) { |
1b6737cc | 5713 | I32 i; |
1c0b011c | 5714 | AvREAL_on(ary); |
abff13bb | 5715 | AvREIFY_off(ary); |
1c0b011c | 5716 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 5717 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5718 | } |
5719 | /* temporarily switch stacks */ | |
8b7059b1 | 5720 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5721 | make_mortal = 0; |
1c0b011c | 5722 | } |
79072805 | 5723 | } |
3280af22 | 5724 | base = SP - PL_stack_base; |
a0d0e21e | 5725 | orig = s; |
dbc200c5 | 5726 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 5727 | if (do_utf8) { |
76a77b1b | 5728 | while (isSPACE_utf8(s)) |
613f191e TS |
5729 | s += UTF8SKIP(s); |
5730 | } | |
a62b1201 | 5731 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
bbce6d69 | 5732 | while (isSPACE_LC(*s)) |
5733 | s++; | |
5734 | } | |
5735 | else { | |
5736 | while (isSPACE(*s)) | |
5737 | s++; | |
5738 | } | |
a0d0e21e | 5739 | } |
73134a2e | 5740 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5741 | multiline = 1; |
c07a80fd | 5742 | } |
5743 | ||
941446f6 FC |
5744 | gimme_scalar = gimme == G_SCALAR && !ary; |
5745 | ||
a0d0e21e LW |
5746 | if (!limit) |
5747 | limit = maxiters + 2; | |
dbc200c5 | 5748 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5749 | while (--limit) { |
bbce6d69 | 5750 | m = s; |
8727f688 YO |
5751 | /* this one uses 'm' and is a negative test */ |
5752 | if (do_utf8) { | |
76a77b1b | 5753 | while (m < strend && ! isSPACE_utf8(m) ) { |
613f191e | 5754 | const int t = UTF8SKIP(m); |
76a77b1b | 5755 | /* isSPACE_utf8 returns FALSE for malform utf8 */ |
613f191e TS |
5756 | if (strend - m < t) |
5757 | m = strend; | |
5758 | else | |
5759 | m += t; | |
5760 | } | |
a62b1201 | 5761 | } |
d14578b8 KW |
5762 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5763 | { | |
8727f688 YO |
5764 | while (m < strend && !isSPACE_LC(*m)) |
5765 | ++m; | |
5766 | } else { | |
5767 | while (m < strend && !isSPACE(*m)) | |
5768 | ++m; | |
5769 | } | |
a0d0e21e LW |
5770 | if (m >= strend) |
5771 | break; | |
bbce6d69 | 5772 | |
c1a7495a BB |
5773 | if (gimme_scalar) { |
5774 | iters++; | |
5775 | if (m-s == 0) | |
5776 | trailing_empty++; | |
5777 | else | |
5778 | trailing_empty = 0; | |
5779 | } else { | |
5780 | dstr = newSVpvn_flags(s, m-s, | |
5781 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5782 | XPUSHs(dstr); | |
5783 | } | |
bbce6d69 | 5784 | |
613f191e TS |
5785 | /* skip the whitespace found last */ |
5786 | if (do_utf8) | |
5787 | s = m + UTF8SKIP(m); | |
5788 | else | |
5789 | s = m + 1; | |
5790 | ||
8727f688 YO |
5791 | /* this one uses 's' and is a positive test */ |
5792 | if (do_utf8) { | |
76a77b1b | 5793 | while (s < strend && isSPACE_utf8(s) ) |
8727f688 | 5794 | s += UTF8SKIP(s); |
a62b1201 | 5795 | } |
d14578b8 KW |
5796 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5797 | { | |
8727f688 YO |
5798 | while (s < strend && isSPACE_LC(*s)) |
5799 | ++s; | |
5800 | } else { | |
5801 | while (s < strend && isSPACE(*s)) | |
5802 | ++s; | |
5803 | } | |
79072805 LW |
5804 | } |
5805 | } | |
07bc277f | 5806 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5807 | while (--limit) { |
a6e20a40 AL |
5808 | for (m = s; m < strend && *m != '\n'; m++) |
5809 | ; | |
a0d0e21e LW |
5810 | m++; |
5811 | if (m >= strend) | |
5812 | break; | |
c1a7495a BB |
5813 | |
5814 | if (gimme_scalar) { | |
5815 | iters++; | |
5816 | if (m-s == 0) | |
5817 | trailing_empty++; | |
5818 | else | |
5819 | trailing_empty = 0; | |
5820 | } else { | |
5821 | dstr = newSVpvn_flags(s, m-s, | |
5822 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5823 | XPUSHs(dstr); | |
5824 | } | |
a0d0e21e LW |
5825 | s = m; |
5826 | } | |
5827 | } | |
07bc277f | 5828 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5829 | /* |
5830 | Pre-extend the stack, either the number of bytes or | |
5831 | characters in the string or a limited amount, triggered by: | |
5832 | ||
5833 | my ($x, $y) = split //, $str; | |
5834 | or | |
5835 | split //, $str, $i; | |
5836 | */ | |
c1a7495a | 5837 | if (!gimme_scalar) { |
052a7c76 DM |
5838 | const IV items = limit - 1; |
5839 | /* setting it to -1 will trigger a panic in EXTEND() */ | |
5840 | const SSize_t sslen = slen > SSize_t_MAX ? -1 : (SSize_t)slen; | |
5841 | if (items >=0 && items < sslen) | |
c1a7495a BB |
5842 | EXTEND(SP, items); |
5843 | else | |
052a7c76 | 5844 | EXTEND(SP, sslen); |
c1a7495a | 5845 | } |
640f820d | 5846 | |
e9515b0f AB |
5847 | if (do_utf8) { |
5848 | while (--limit) { | |
5849 | /* keep track of how many bytes we skip over */ | |
5850 | m = s; | |
640f820d | 5851 | s += UTF8SKIP(s); |
c1a7495a BB |
5852 | if (gimme_scalar) { |
5853 | iters++; | |
5854 | if (s-m == 0) | |
5855 | trailing_empty++; | |
5856 | else | |
5857 | trailing_empty = 0; | |
5858 | } else { | |
5859 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5860 | |
c1a7495a BB |
5861 | PUSHs(dstr); |
5862 | } | |
640f820d | 5863 | |
e9515b0f AB |
5864 | if (s >= strend) |
5865 | break; | |
5866 | } | |
5867 | } else { | |
5868 | while (--limit) { | |
c1a7495a BB |
5869 | if (gimme_scalar) { |
5870 | iters++; | |
5871 | } else { | |
5872 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5873 | |
e9515b0f | 5874 | |
c1a7495a BB |
5875 | if (make_mortal) |
5876 | sv_2mortal(dstr); | |
640f820d | 5877 | |
c1a7495a BB |
5878 | PUSHs(dstr); |
5879 | } | |
5880 | ||
5881 | s++; | |
e9515b0f AB |
5882 | |
5883 | if (s >= strend) | |
5884 | break; | |
5885 | } | |
640f820d AB |
5886 | } |
5887 | } | |
3c8556c3 | 5888 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5889 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5890 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
8e1490ee | 5891 | && !(RX_EXTFLAGS(rx) & RXf_IS_ANCHORED)) { |
07bc277f | 5892 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); |
f9f4320a | 5893 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5894 | |
07bc277f | 5895 | len = RX_MINLENRET(rx); |
3c8556c3 | 5896 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5897 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5898 | while (--limit) { |
a6e20a40 AL |
5899 | for (m = s; m < strend && *m != c; m++) |
5900 | ; | |
a0d0e21e LW |
5901 | if (m >= strend) |
5902 | break; | |
c1a7495a BB |
5903 | if (gimme_scalar) { |
5904 | iters++; | |
5905 | if (m-s == 0) | |
5906 | trailing_empty++; | |
5907 | else | |
5908 | trailing_empty = 0; | |
5909 | } else { | |
5910 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5911 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5912 | XPUSHs(dstr); |
5913 | } | |
93f04dac JH |
5914 | /* The rx->minlen is in characters but we want to step |
5915 | * s ahead by bytes. */ | |
1aa99e6b IH |
5916 | if (do_utf8) |
5917 | s = (char*)utf8_hop((U8*)m, len); | |
5918 | else | |
5919 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5920 | } |
5921 | } | |
5922 | else { | |
a0d0e21e | 5923 | while (s < strend && --limit && |
f722798b | 5924 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5925 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5926 | { |
c1a7495a BB |
5927 | if (gimme_scalar) { |
5928 | iters++; | |
5929 | if (m-s == 0) | |
5930 | trailing_empty++; | |
5931 | else | |
5932 | trailing_empty = 0; | |
5933 | } else { | |
5934 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5935 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5936 | XPUSHs(dstr); |
5937 | } | |
93f04dac JH |
5938 | /* The rx->minlen is in characters but we want to step |
5939 | * s ahead by bytes. */ | |
1aa99e6b IH |
5940 | if (do_utf8) |
5941 | s = (char*)utf8_hop((U8*)m, len); | |
5942 | else | |
5943 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 5944 | } |
463ee0b2 | 5945 | } |
463ee0b2 | 5946 | } |
a0d0e21e | 5947 | else { |
07bc277f | 5948 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 5949 | while (s < strend && --limit) |
bbce6d69 | 5950 | { |
1b6737cc | 5951 | I32 rex_return; |
080c2dec | 5952 | PUTBACK; |
d14578b8 | 5953 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 5954 | sv, NULL, 0); |
080c2dec | 5955 | SPAGAIN; |
1b6737cc | 5956 | if (rex_return == 0) |
080c2dec | 5957 | break; |
d9f97599 | 5958 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
5959 | /* we never pass the REXEC_COPY_STR flag, so it should |
5960 | * never get copied */ | |
5961 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 5962 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
5963 | |
5964 | if (gimme_scalar) { | |
5965 | iters++; | |
5966 | if (m-s == 0) | |
5967 | trailing_empty++; | |
5968 | else | |
5969 | trailing_empty = 0; | |
5970 | } else { | |
5971 | dstr = newSVpvn_flags(s, m-s, | |
5972 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5973 | XPUSHs(dstr); | |
5974 | } | |
07bc277f | 5975 | if (RX_NPARENS(rx)) { |
1b6737cc | 5976 | I32 i; |
07bc277f NC |
5977 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
5978 | s = RX_OFFS(rx)[i].start + orig; | |
5979 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
5980 | |
5981 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
5982 | parens that didn't match -- they should be set to | |
5983 | undef, not the empty string */ | |
c1a7495a BB |
5984 | if (gimme_scalar) { |
5985 | iters++; | |
5986 | if (m-s == 0) | |
5987 | trailing_empty++; | |
5988 | else | |
5989 | trailing_empty = 0; | |
5990 | } else { | |
5991 | if (m >= orig && s >= orig) { | |
5992 | dstr = newSVpvn_flags(s, m-s, | |
5993 | (do_utf8 ? SVf_UTF8 : 0) | |
5994 | | make_mortal); | |
5995 | } | |
5996 | else | |
5997 | dstr = &PL_sv_undef; /* undef, not "" */ | |
5998 | XPUSHs(dstr); | |
748a9306 | 5999 | } |
c1a7495a | 6000 | |
a0d0e21e LW |
6001 | } |
6002 | } | |
07bc277f | 6003 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 6004 | } |
79072805 | 6005 | } |
8ec5e241 | 6006 | |
c1a7495a BB |
6007 | if (!gimme_scalar) { |
6008 | iters = (SP - PL_stack_base) - base; | |
6009 | } | |
a0d0e21e | 6010 | if (iters > maxiters) |
cea2e8a9 | 6011 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 6012 | |
a0d0e21e LW |
6013 | /* keep field after final delim? */ |
6014 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
6015 | if (!gimme_scalar) { |
6016 | const STRLEN l = strend - s; | |
6017 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6018 | XPUSHs(dstr); | |
6019 | } | |
a0d0e21e | 6020 | iters++; |
79072805 | 6021 | } |
a0d0e21e | 6022 | else if (!origlimit) { |
c1a7495a BB |
6023 | if (gimme_scalar) { |
6024 | iters -= trailing_empty; | |
6025 | } else { | |
6026 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
6027 | if (TOPs && !make_mortal) | |
6028 | sv_2mortal(TOPs); | |
6029 | *SP-- = &PL_sv_undef; | |
6030 | iters--; | |
6031 | } | |
89900bd3 | 6032 | } |
a0d0e21e | 6033 | } |
8ec5e241 | 6034 | |
8b7059b1 DM |
6035 | PUTBACK; |
6036 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
6037 | SPAGAIN; | |
a0d0e21e | 6038 | if (realarray) { |
8ec5e241 | 6039 | if (!mg) { |
1c0b011c NIS |
6040 | if (SvSMAGICAL(ary)) { |
6041 | PUTBACK; | |
ad64d0ec | 6042 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
6043 | SPAGAIN; |
6044 | } | |
6045 | if (gimme == G_ARRAY) { | |
6046 | EXTEND(SP, iters); | |
6047 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
6048 | SP += iters; | |
6049 | RETURN; | |
6050 | } | |
8ec5e241 | 6051 | } |
1c0b011c | 6052 | else { |
fb73857a | 6053 | PUTBACK; |
d343c3ef | 6054 | ENTER_with_name("call_PUSH"); |
36925d9e | 6055 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 6056 | LEAVE_with_name("call_PUSH"); |
fb73857a | 6057 | SPAGAIN; |
8ec5e241 | 6058 | if (gimme == G_ARRAY) { |
c70927a6 | 6059 | SSize_t i; |
8ec5e241 NIS |
6060 | /* EXTEND should not be needed - we just popped them */ |
6061 | EXTEND(SP, iters); | |
6062 | for (i=0; i < iters; i++) { | |
6063 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 6064 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 6065 | } |
1c0b011c NIS |
6066 | RETURN; |
6067 | } | |
a0d0e21e LW |
6068 | } |
6069 | } | |
6070 | else { | |
6071 | if (gimme == G_ARRAY) | |
6072 | RETURN; | |
6073 | } | |
7f18b612 YST |
6074 | |
6075 | GETTARGET; | |
6076 | PUSHi(iters); | |
6077 | RETURN; | |
79072805 | 6078 | } |
85e6fe83 | 6079 | |
c5917253 NC |
6080 | PP(pp_once) |
6081 | { | |
6082 | dSP; | |
6083 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
6084 | ||
6085 | if (SvPADSTALE(sv)) { | |
6086 | /* First time. */ | |
6087 | SvPADSTALE_off(sv); | |
6088 | RETURNOP(cLOGOP->op_other); | |
6089 | } | |
6090 | RETURNOP(cLOGOP->op_next); | |
6091 | } | |
6092 | ||
c0329465 MB |
6093 | PP(pp_lock) |
6094 | { | |
39644a26 | 6095 | dSP; |
c0329465 | 6096 | dTOPss; |
e55aaa0e | 6097 | SV *retsv = sv; |
68795e93 | 6098 | SvLOCK(sv); |
f79aa60b FC |
6099 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
6100 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
6101 | retsv = refto(retsv); |
6102 | } | |
6103 | SETs(retsv); | |
c0329465 MB |
6104 | RETURN; |
6105 | } | |
a863c7d1 | 6106 | |
65bca31a | 6107 | |
b1c05ba5 DM |
6108 | /* used for: pp_padany(), pp_mapstart(), pp_custom(); plus any system ops |
6109 | * that aren't implemented on a particular platform */ | |
6110 | ||
65bca31a NC |
6111 | PP(unimplemented_op) |
6112 | { | |
361ed549 NC |
6113 | const Optype op_type = PL_op->op_type; |
6114 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
6115 | with out of range op numbers - it only "special" cases op_custom. | |
6116 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
6117 | if we get here for a custom op then that means that the custom op didn't | |
6118 | have an implementation. Given that OP_NAME() looks up the custom op | |
6119 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
6120 | registers &PL_unimplemented_op as the address of their custom op. | |
6121 | NULL doesn't generate a useful error message. "custom" does. */ | |
6122 | const char *const name = op_type >= OP_max | |
6123 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
6124 | if(OP_IS_SOCKET(op_type)) |
6125 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 6126 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
6127 | } |
6128 | ||
deb8a388 FC |
6129 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
6130 | PP(pp_coreargs) | |
6131 | { | |
6132 | dSP; | |
7fa5bd9b | 6133 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 6134 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 6135 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
6136 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
6137 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 6138 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 6139 | bool seen_question = 0; |
7fa5bd9b | 6140 | const char *err = NULL; |
3e6568b4 | 6141 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 6142 | |
46e00a91 FC |
6143 | /* Count how many args there are first, to get some idea how far to |
6144 | extend the stack. */ | |
7fa5bd9b | 6145 | while (oa) { |
bf0571fd | 6146 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 6147 | maxargs++; |
46e00a91 FC |
6148 | if (oa & OA_OPTIONAL) seen_question = 1; |
6149 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
6150 | oa >>= 4; |
6151 | } | |
6152 | ||
6153 | if(numargs < minargs) err = "Not enough"; | |
6154 | else if(numargs > maxargs) err = "Too many"; | |
6155 | if (err) | |
6156 | /* diag_listed_as: Too many arguments for %s */ | |
6157 | Perl_croak(aTHX_ | |
6158 | "%s arguments for %s", err, | |
2a90c7c6 | 6159 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
6160 | ); |
6161 | ||
6162 | /* Reset the stack pointer. Without this, we end up returning our own | |
6163 | arguments in list context, in addition to the values we are supposed | |
6164 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 6165 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b FC |
6166 | nextstate. */ |
6167 | SP = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; | |
6168 | ||
46e00a91 FC |
6169 | if(!maxargs) RETURN; |
6170 | ||
bf0571fd FC |
6171 | /* We do this here, rather than with a separate pushmark op, as it has |
6172 | to come in between two things this function does (stack reset and | |
6173 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 6174 | if (pushmark) { |
bf0571fd FC |
6175 | PUTBACK; |
6176 | (void)Perl_pp_pushmark(aTHX); | |
6177 | } | |
6178 | ||
6179 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 6180 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
6181 | |
6182 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 6183 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 6184 | whicharg++; |
46e00a91 FC |
6185 | switch (oa & 7) { |
6186 | case OA_SCALAR: | |
1efec5ed | 6187 | try_defsv: |
d6d78e19 | 6188 | if (!numargs && defgv && whicharg == minargs + 1) { |
195eefec | 6189 | PUSHs(DEFSV); |
d6d78e19 FC |
6190 | } |
6191 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 6192 | break; |
bf0571fd FC |
6193 | case OA_LIST: |
6194 | while (numargs--) { | |
6195 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
6196 | svp++; | |
6197 | } | |
6198 | RETURN; | |
19c481f4 FC |
6199 | case OA_HVREF: |
6200 | if (!svp || !*svp || !SvROK(*svp) | |
6201 | || SvTYPE(SvRV(*svp)) != SVt_PVHV) | |
6202 | DIE(aTHX_ | |
6203 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
6204 | "Type of arg %d to &CORE::%s must be hash reference", | |
6205 | whicharg, OP_DESC(PL_op->op_next) | |
6206 | ); | |
6207 | PUSHs(SvRV(*svp)); | |
6208 | break; | |
c931b036 | 6209 | case OA_FILEREF: |
30901a8a FC |
6210 | if (!numargs) PUSHs(NULL); |
6211 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
6212 | /* no magic here, as the prototype will have added an extra |
6213 | refgen and we just want what was there before that */ | |
6214 | PUSHs(SvRV(*svp)); | |
6215 | else { | |
6216 | const bool constr = PL_op->op_private & whicharg; | |
6217 | PUSHs(S_rv2gv(aTHX_ | |
6218 | svp && *svp ? *svp : &PL_sv_undef, | |
b54f893d | 6219 | constr, cBOOL(CopHINTS_get(PL_curcop) & HINT_STRICT_REFS), |
c931b036 FC |
6220 | !constr |
6221 | )); | |
6222 | } | |
6223 | break; | |
c72a5629 | 6224 | case OA_SCALARREF: |
1efec5ed FC |
6225 | if (!numargs) goto try_defsv; |
6226 | else { | |
17008668 FC |
6227 | const bool wantscalar = |
6228 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 6229 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
6230 | /* We have to permit globrefs even for the \$ proto, as |
6231 | *foo is indistinguishable from ${\*foo}, and the proto- | |
6232 | type permits the latter. */ | |
6233 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 6234 | wantscalar ? SVt_PVLV |
46bef06f FC |
6235 | : opnum == OP_LOCK || opnum == OP_UNDEF |
6236 | ? SVt_PVCV | |
efe889ae | 6237 | : SVt_PVHV |
17008668 | 6238 | ) |
c72a5629 FC |
6239 | ) |
6240 | DIE(aTHX_ | |
17008668 | 6241 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 6242 | whicharg, PL_op_name[opnum], |
17008668 FC |
6243 | wantscalar |
6244 | ? "scalar reference" | |
46bef06f | 6245 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
6246 | ? "reference to one of [$@%&*]" |
6247 | : "reference to one of [$@%*]" | |
c72a5629 FC |
6248 | ); |
6249 | PUSHs(SvRV(*svp)); | |
88bb468b FC |
6250 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv |
6251 | && cxstack[cxstack_ix].cx_type & CXp_HASARGS) { | |
6252 | /* Undo @_ localisation, so that sub exit does not undo | |
6253 | part of our undeffing. */ | |
6254 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; | |
6255 | POP_SAVEARRAY(); | |
6256 | cx->cx_type &= ~ CXp_HASARGS; | |
6257 | assert(!AvREAL(cx->blk_sub.argarray)); | |
6258 | } | |
17008668 | 6259 | } |
1efec5ed | 6260 | break; |
46e00a91 | 6261 | default: |
46e00a91 FC |
6262 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
6263 | } | |
6264 | oa = oa >> 4; | |
6265 | } | |
6266 | ||
deb8a388 FC |
6267 | RETURN; |
6268 | } | |
6269 | ||
84ed0108 FC |
6270 | PP(pp_runcv) |
6271 | { | |
6272 | dSP; | |
6273 | CV *cv; | |
6274 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 6275 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
6276 | } |
6277 | else cv = find_runcv(NULL); | |
e157a82b | 6278 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
6279 | RETURN; |
6280 | } | |
6281 | ||
05a34802 | 6282 | static void |
2331e434 | 6283 | S_localise_aelem_lval(pTHX_ AV * const av, SV * const keysv, |
05a34802 FC |
6284 | const bool can_preserve) |
6285 | { | |
2331e434 | 6286 | const SSize_t ix = SvIV(keysv); |
05a34802 FC |
6287 | if (can_preserve ? av_exists(av, ix) : TRUE) { |
6288 | SV ** const svp = av_fetch(av, ix, 1); | |
6289 | if (!svp || !*svp) | |
6290 | Perl_croak(aTHX_ PL_no_aelem, ix); | |
6291 | save_aelem(av, ix, svp); | |
6292 | } | |
6293 | else | |
6294 | SAVEADELETE(av, ix); | |
6295 | } | |
6296 | ||
5f94141d FC |
6297 | static void |
6298 | S_localise_helem_lval(pTHX_ HV * const hv, SV * const keysv, | |
6299 | const bool can_preserve) | |
6300 | { | |
6301 | if (can_preserve ? hv_exists_ent(hv, keysv, 0) : TRUE) { | |
6302 | HE * const he = hv_fetch_ent(hv, keysv, 1, 0); | |
6303 | SV ** const svp = he ? &HeVAL(he) : NULL; | |
6304 | if (!svp || !*svp) | |
6305 | Perl_croak(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
6306 | save_helem_flags(hv, keysv, svp, 0); | |
6307 | } | |
6308 | else | |
6309 | SAVEHDELETE(hv, keysv); | |
6310 | } | |
6311 | ||
9782ce69 FC |
6312 | static void |
6313 | S_localise_gv_slot(pTHX_ GV *gv, U8 type) | |
6314 | { | |
6315 | if (type == OPpLVREF_SV) { | |
6316 | save_pushptrptr(gv, SvREFCNT_inc_simple(GvSV(gv)), SAVEt_GVSV); | |
6317 | GvSV(gv) = 0; | |
6318 | } | |
6319 | else if (type == OPpLVREF_AV) | |
6320 | /* XXX Inefficient, as it creates a new AV, which we are | |
6321 | about to clobber. */ | |
6322 | save_ary(gv); | |
6323 | else { | |
6324 | assert(type == OPpLVREF_HV); | |
6325 | /* XXX Likewise inefficient. */ | |
6326 | save_hash(gv); | |
6327 | } | |
6328 | } | |
6329 | ||
6330 | ||
254da51f FC |
6331 | PP(pp_refassign) |
6332 | { | |
4fec8804 | 6333 | dSP; |
6102323a | 6334 | SV * const key = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
d8a875d9 | 6335 | SV * const left = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
4fec8804 | 6336 | dTOPss; |
3f114923 | 6337 | const char *bad = NULL; |
ac0da85a | 6338 | const U8 type = PL_op->op_private & OPpLVREF_TYPE; |
4fec8804 | 6339 | if (!SvROK(sv)) DIE(aTHX_ "Assigned value is not a reference"); |
ac0da85a | 6340 | switch (type) { |
3f114923 FC |
6341 | case OPpLVREF_SV: |
6342 | if (SvTYPE(SvRV(sv)) > SVt_PVLV) | |
6343 | bad = " SCALAR"; | |
6344 | break; | |
6345 | case OPpLVREF_AV: | |
6346 | if (SvTYPE(SvRV(sv)) != SVt_PVAV) | |
6347 | bad = "n ARRAY"; | |
6348 | break; | |
6349 | case OPpLVREF_HV: | |
6350 | if (SvTYPE(SvRV(sv)) != SVt_PVHV) | |
6351 | bad = " HASH"; | |
6352 | break; | |
6353 | case OPpLVREF_CV: | |
6354 | if (SvTYPE(SvRV(sv)) != SVt_PVCV) | |
6355 | bad = " CODE"; | |
6356 | } | |
6357 | if (bad) | |
1f8155a2 | 6358 | /* diag_listed_as: Assigned value is not %s reference */ |
3f114923 | 6359 | DIE(aTHX_ "Assigned value is not a%s reference", bad); |
b943805e JH |
6360 | { |
6361 | MAGIC *mg; | |
6362 | HV *stash; | |
d8a875d9 FC |
6363 | switch (left ? SvTYPE(left) : 0) { |
6364 | case 0: | |
cf5d2d91 FC |
6365 | { |
6366 | SV * const old = PAD_SV(ARGTARG); | |
d8a875d9 | 6367 | PAD_SETSV(ARGTARG, SvREFCNT_inc_NN(SvRV(sv))); |
cf5d2d91 | 6368 | SvREFCNT_dec(old); |
3ad7d304 FC |
6369 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpPAD_STATE)) |
6370 | == OPpLVAL_INTRO) | |
fc048fcf | 6371 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
d8a875d9 | 6372 | break; |
cf5d2d91 | 6373 | } |
d8a875d9 | 6374 | case SVt_PVGV: |
2a57afb1 | 6375 | if (PL_op->op_private & OPpLVAL_INTRO) { |
9782ce69 | 6376 | S_localise_gv_slot(aTHX_ (GV *)left, type); |
2a57afb1 | 6377 | } |
d8a875d9 FC |
6378 | gv_setref(left, sv); |
6379 | SvSETMAGIC(left); | |
6102323a FC |
6380 | break; |
6381 | case SVt_PVAV: | |
69a23520 | 6382 | assert(key); |
40d2b828 | 6383 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
2331e434 | 6384 | S_localise_aelem_lval(aTHX_ (AV *)left, key, |
05a34802 | 6385 | SvCANEXISTDELETE(left)); |
40d2b828 | 6386 | } |
6102323a FC |
6387 | av_store((AV *)left, SvIV(key), SvREFCNT_inc_simple_NN(SvRV(sv))); |
6388 | break; | |
5f94141d | 6389 | case SVt_PVHV: |
69a23520 JH |
6390 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
6391 | assert(key); | |
5f94141d FC |
6392 | S_localise_helem_lval(aTHX_ (HV *)left, key, |
6393 | SvCANEXISTDELETE(left)); | |
69a23520 | 6394 | } |
7fcb36d5 | 6395 | (void)hv_store_ent((HV *)left, key, SvREFCNT_inc_simple_NN(SvRV(sv)), 0); |
d8a875d9 | 6396 | } |
4fec8804 FC |
6397 | if (PL_op->op_flags & OPf_MOD) |
6398 | SETs(sv_2mortal(newSVsv(sv))); | |
6399 | /* XXX else can weak references go stale before they are read, e.g., | |
6400 | in leavesub? */ | |
6401 | RETURN; | |
b943805e | 6402 | } |
254da51f FC |
6403 | } |
6404 | ||
4c5bab50 FC |
6405 | PP(pp_lvref) |
6406 | { | |
26a50d99 FC |
6407 | dSP; |
6408 | SV * const ret = sv_2mortal(newSV_type(SVt_PVMG)); | |
6102323a | 6409 | SV * const elem = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
2a57afb1 | 6410 | SV * const arg = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
9782ce69 FC |
6411 | MAGIC * const mg = sv_magicext(ret, arg, PERL_MAGIC_lvref, |
6412 | &PL_vtbl_lvref, (char *)elem, | |
23270f96 | 6413 | elem ? HEf_SVKEY : (I32)ARGTARG); |
9782ce69 | 6414 | mg->mg_private = PL_op->op_private; |
d39c26a6 FC |
6415 | if (PL_op->op_private & OPpLVREF_ITER) |
6416 | mg->mg_flags |= MGf_PERSIST; | |
9846cd95 | 6417 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
40d2b828 | 6418 | if (elem) { |
38bb0011 JH |
6419 | MAGIC *mg; |
6420 | HV *stash; | |
6421 | assert(arg); | |
6422 | { | |
6423 | const bool can_preserve = SvCANEXISTDELETE(arg); | |
6424 | if (SvTYPE(arg) == SVt_PVAV) | |
6425 | S_localise_aelem_lval(aTHX_ (AV *)arg, elem, can_preserve); | |
6426 | else | |
6427 | S_localise_helem_lval(aTHX_ (HV *)arg, elem, can_preserve); | |
6428 | } | |
40d2b828 FC |
6429 | } |
6430 | else if (arg) { | |
9782ce69 FC |
6431 | S_localise_gv_slot(aTHX_ (GV *)arg, |
6432 | PL_op->op_private & OPpLVREF_TYPE); | |
2a57afb1 | 6433 | } |
3ad7d304 | 6434 | else if (!(PL_op->op_private & OPpPAD_STATE)) |
c146a62a | 6435 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
1199b01a | 6436 | } |
c146a62a FC |
6437 | XPUSHs(ret); |
6438 | RETURN; | |
4c5bab50 | 6439 | } |
84ed0108 | 6440 | |
16b99412 FC |
6441 | PP(pp_lvrefslice) |
6442 | { | |
a95dad8a | 6443 | dSP; dMARK; |
0ca7b7f7 FC |
6444 | AV * const av = (AV *)POPs; |
6445 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
6446 | bool can_preserve = FALSE; | |
6447 | ||
9846cd95 | 6448 | if (UNLIKELY(localizing)) { |
0ca7b7f7 FC |
6449 | MAGIC *mg; |
6450 | HV *stash; | |
6451 | SV **svp; | |
6452 | ||
6453 | can_preserve = SvCANEXISTDELETE(av); | |
6454 | ||
6455 | if (SvTYPE(av) == SVt_PVAV) { | |
6456 | SSize_t max = -1; | |
6457 | ||
6458 | for (svp = MARK + 1; svp <= SP; svp++) { | |
6459 | const SSize_t elem = SvIV(*svp); | |
6460 | if (elem > max) | |
6461 | max = elem; | |
6462 | } | |
6463 | if (max > AvMAX(av)) | |
6464 | av_extend(av, max); | |
6465 | } | |
6466 | } | |
6467 | ||
6468 | while (++MARK <= SP) { | |
6469 | SV * const elemsv = *MARK; | |
5f94141d | 6470 | if (SvTYPE(av) == SVt_PVAV) |
2331e434 | 6471 | S_localise_aelem_lval(aTHX_ av, elemsv, can_preserve); |
5f94141d FC |
6472 | else |
6473 | S_localise_helem_lval(aTHX_ (HV *)av, elemsv, can_preserve); | |
0ca7b7f7 FC |
6474 | *MARK = sv_2mortal(newSV_type(SVt_PVMG)); |
6475 | sv_magic(*MARK,(SV *)av,PERL_MAGIC_lvref,(char *)elemsv,HEf_SVKEY); | |
6476 | } | |
6477 | RETURN; | |
16b99412 FC |
6478 | } |
6479 | ||
2882b3ff FC |
6480 | PP(pp_lvavref) |
6481 | { | |
bdaf10a5 FC |
6482 | if (PL_op->op_flags & OPf_STACKED) |
6483 | Perl_pp_rv2av(aTHX); | |
6484 | else | |
6485 | Perl_pp_padav(aTHX); | |
6486 | { | |
6487 | dSP; | |
6488 | dTOPss; | |
6489 | SETs(0); /* special alias marker that aassign recognises */ | |
6490 | XPUSHs(sv); | |
6491 | RETURN; | |
6492 | } | |
2882b3ff FC |
6493 | } |
6494 | ||
b77472f9 FC |
6495 | PP(pp_anonconst) |
6496 | { | |
6497 | dSP; | |
6498 | dTOPss; | |
6499 | SETs(sv_2mortal((SV *)newCONSTSUB(SvTYPE(CopSTASH(PL_curcop))==SVt_PVHV | |
6500 | ? CopSTASH(PL_curcop) | |
6501 | : NULL, | |
6502 | NULL, SvREFCNT_inc_simple_NN(sv)))); | |
6503 | RETURN; | |
6504 | } | |
6505 | ||
e609e586 | 6506 | /* |
14d04a33 | 6507 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 6508 | */ |