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 | { | |
97aff369 | 57 | dVAR; |
39644a26 | 58 | dSP; |
54310121 | 59 | if (GIMME_V == G_SCALAR) |
3280af22 | 60 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
61 | RETURN; |
62 | } | |
63 | ||
79072805 LW |
64 | /* Pushy stuff. */ |
65 | ||
93a17b20 LW |
66 | PP(pp_padav) |
67 | { | |
97aff369 | 68 | dVAR; 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)) { | |
78f9721b | 81 | if (GIMME == 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 */ |
c70927a6 | 91 | const Size_t maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 | 92 | EXTEND(SP, maxarg); |
93965878 | 93 | if (SvMAGICAL(TARG)) { |
c70927a6 FC |
94 | Size_t i; |
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 { | |
428ccf1e FC |
101 | PADOFFSET i; |
102 | for (i=0; i < (PADOFFSET)maxarg; i++) { | |
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 | { | |
97aff369 | 120 | dVAR; 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)) { | |
78f9721b | 133 | if (GIMME == 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 | { | |
97b03d64 FC |
157 | dVAR; dSP; dTARGET; |
158 | assert(SvTYPE(TARG) == SVt_PVCV); | |
159 | XPUSHs(TARG); | |
160 | RETURN; | |
ac217057 FC |
161 | } |
162 | ||
ecf9c8b7 FC |
163 | PP(pp_introcv) |
164 | { | |
6d5c2147 FC |
165 | dVAR; dTARGET; |
166 | SvPADSTALE_off(TARG); | |
167 | return NORMAL; | |
ecf9c8b7 FC |
168 | } |
169 | ||
13f89586 FC |
170 | PP(pp_clonecv) |
171 | { | |
6d5c2147 | 172 | dVAR; dTARGET; |
81df9f6f | 173 | MAGIC * const mg = |
62698e04 FC |
174 | mg_find(PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG], |
175 | PERL_MAGIC_proto); | |
6d5c2147 FC |
176 | assert(SvTYPE(TARG) == SVt_PVCV); |
177 | assert(mg); | |
178 | assert(mg->mg_obj); | |
179 | if (CvISXSUB(mg->mg_obj)) { /* constant */ | |
180 | /* XXX Should we clone it here? */ | |
6d5c2147 FC |
181 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
182 | to introcv and remove the SvPADSTALE_off. */ | |
183 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
4ded55f3 | 184 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(mg->mg_obj); |
6d5c2147 FC |
185 | } |
186 | else { | |
187 | if (CvROOT(mg->mg_obj)) { | |
188 | assert(CvCLONE(mg->mg_obj)); | |
189 | assert(!CvCLONED(mg->mg_obj)); | |
190 | } | |
191 | cv_clone_into((CV *)mg->mg_obj,(CV *)TARG); | |
192 | SAVECLEARSV(PAD_SVl(ARGTARG)); | |
193 | } | |
194 | return NORMAL; | |
13f89586 FC |
195 | } |
196 | ||
79072805 LW |
197 | /* Translations. */ |
198 | ||
4bdf8368 | 199 | static const char S_no_symref_sv[] = |
def89bff NC |
200 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
201 | ||
6f7909da FC |
202 | /* In some cases this function inspects PL_op. If this function is called |
203 | for new op types, more bool parameters may need to be added in place of | |
204 | the checks. | |
205 | ||
206 | When noinit is true, the absence of a gv will cause a retval of undef. | |
207 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
208 | */ |
209 | ||
210 | static SV * | |
211 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
212 | const bool noinit) | |
213 | { | |
14f0f125 | 214 | dVAR; |
f64c9ac5 | 215 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 216 | if (SvROK(sv)) { |
93d7320b DM |
217 | if (SvAMAGIC(sv)) { |
218 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 219 | } |
e4a1664f | 220 | wasref: |
ed6116ce | 221 | sv = SvRV(sv); |
b1dadf13 | 222 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 223 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 224 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 225 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 226 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 227 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 228 | } |
6e592b3a | 229 | else if (!isGV_with_GP(sv)) |
6f7909da | 230 | return (SV *)Perl_die(aTHX_ "Not a GLOB reference"); |
79072805 LW |
231 | } |
232 | else { | |
6e592b3a | 233 | if (!isGV_with_GP(sv)) { |
f132ae69 | 234 | if (!SvOK(sv)) { |
b13b2135 | 235 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 236 | * NI-S 1999/05/07 |
b13b2135 | 237 | */ |
f132ae69 | 238 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 239 | GV *gv; |
ce74145d | 240 | if (SvREADONLY(sv)) |
cb077ed2 | 241 | Perl_croak_no_modify(); |
2c8ac474 | 242 | if (cUNOP->op_targ) { |
0bd48802 | 243 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f FC |
244 | HV *stash = CopSTASH(PL_curcop); |
245 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
159b6efe | 246 | gv = MUTABLE_GV(newSV(0)); |
94e7eb6f | 247 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
248 | } |
249 | else { | |
0bd48802 | 250 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b | 251 | gv = newGVgen_flags(name, |
d14578b8 | 252 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); |
1d8d4d2a | 253 | } |
43230e26 | 254 | prepare_SV_for_RV(sv); |
ad64d0ec | 255 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 256 | SvROK_on(sv); |
1d8d4d2a | 257 | SvSETMAGIC(sv); |
853846ea | 258 | goto wasref; |
2c8ac474 | 259 | } |
6f7909da FC |
260 | if (PL_op->op_flags & OPf_REF || strict) |
261 | return (SV *)Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
599cee73 | 262 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 263 | report_uninit(sv); |
6f7909da | 264 | return &PL_sv_undef; |
a0d0e21e | 265 | } |
6f7909da | 266 | if (noinit) |
35cd451c | 267 | { |
77cb3b01 FC |
268 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
269 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 270 | )))) |
6f7909da | 271 | return &PL_sv_undef; |
35cd451c GS |
272 | } |
273 | else { | |
6f7909da FC |
274 | if (strict) |
275 | return | |
276 | (SV *)Perl_die(aTHX_ | |
277 | S_no_symref_sv, | |
278 | sv, | |
bf3d870f | 279 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), |
6f7909da FC |
280 | "a symbol" |
281 | ); | |
e26df76a NC |
282 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
283 | == OPpDONT_INIT_GV) { | |
284 | /* We are the target of a coderef assignment. Return | |
285 | the scalar unchanged, and let pp_sasssign deal with | |
286 | things. */ | |
6f7909da | 287 | return sv; |
e26df76a | 288 | } |
77cb3b01 | 289 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 290 | } |
2acc3314 | 291 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 292 | SvFAKE_off(sv); |
93a17b20 | 293 | } |
79072805 | 294 | } |
8dc99089 | 295 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 296 | SV *newsv = sv_newmortal(); |
5cf4b255 | 297 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 298 | SvFAKE_off(newsv); |
d8906c05 | 299 | sv = newsv; |
2acc3314 | 300 | } |
6f7909da FC |
301 | return sv; |
302 | } | |
303 | ||
304 | PP(pp_rv2gv) | |
305 | { | |
306 | dVAR; dSP; dTOPss; | |
307 | ||
308 | sv = S_rv2gv(aTHX_ | |
309 | sv, PL_op->op_private & OPpDEREF, | |
310 | PL_op->op_private & HINT_STRICT_REFS, | |
311 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
312 | || PL_op->op_type == OP_READLINE | |
313 | ); | |
d8906c05 FC |
314 | if (PL_op->op_private & OPpLVAL_INTRO) |
315 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
316 | SETs(sv); | |
79072805 LW |
317 | RETURN; |
318 | } | |
319 | ||
dc3c76f8 NC |
320 | /* Helper function for pp_rv2sv and pp_rv2av */ |
321 | GV * | |
fe9845cc RB |
322 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
323 | const svtype type, SV ***spp) | |
dc3c76f8 NC |
324 | { |
325 | dVAR; | |
326 | GV *gv; | |
327 | ||
7918f24d NC |
328 | PERL_ARGS_ASSERT_SOFTREF2XV; |
329 | ||
dc3c76f8 NC |
330 | if (PL_op->op_private & HINT_STRICT_REFS) { |
331 | if (SvOK(sv)) | |
bf3d870f FC |
332 | Perl_die(aTHX_ S_no_symref_sv, sv, |
333 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); | |
dc3c76f8 NC |
334 | else |
335 | Perl_die(aTHX_ PL_no_usym, what); | |
336 | } | |
337 | if (!SvOK(sv)) { | |
fd1d9b5c | 338 | if ( |
c8fe3bdf | 339 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 340 | ) |
dc3c76f8 NC |
341 | Perl_die(aTHX_ PL_no_usym, what); |
342 | if (ckWARN(WARN_UNINITIALIZED)) | |
343 | report_uninit(sv); | |
344 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
345 | (*spp)--; | |
346 | return NULL; | |
347 | } | |
348 | **spp = &PL_sv_undef; | |
349 | return NULL; | |
350 | } | |
351 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
352 | !(PL_op->op_flags & OPf_MOD)) | |
353 | { | |
77cb3b01 | 354 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
355 | { |
356 | **spp = &PL_sv_undef; | |
357 | return NULL; | |
358 | } | |
359 | } | |
360 | else { | |
77cb3b01 | 361 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
362 | } |
363 | return gv; | |
364 | } | |
365 | ||
79072805 LW |
366 | PP(pp_rv2sv) |
367 | { | |
97aff369 | 368 | dVAR; dSP; dTOPss; |
c445ea15 | 369 | GV *gv = NULL; |
79072805 | 370 | |
9026059d | 371 | SvGETMAGIC(sv); |
ed6116ce | 372 | if (SvROK(sv)) { |
93d7320b DM |
373 | if (SvAMAGIC(sv)) { |
374 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 375 | } |
f5284f61 | 376 | |
ed6116ce | 377 | sv = SvRV(sv); |
79072805 LW |
378 | switch (SvTYPE(sv)) { |
379 | case SVt_PVAV: | |
380 | case SVt_PVHV: | |
381 | case SVt_PVCV: | |
cbae9b9f YST |
382 | case SVt_PVFM: |
383 | case SVt_PVIO: | |
cea2e8a9 | 384 | DIE(aTHX_ "Not a SCALAR reference"); |
42d0e0b7 | 385 | default: NOOP; |
79072805 LW |
386 | } |
387 | } | |
388 | else { | |
159b6efe | 389 | gv = MUTABLE_GV(sv); |
748a9306 | 390 | |
6e592b3a | 391 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
392 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
393 | if (!gv) | |
394 | RETURN; | |
463ee0b2 | 395 | } |
29c711a3 | 396 | sv = GvSVn(gv); |
a0d0e21e | 397 | } |
533c011a | 398 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
399 | if (PL_op->op_private & OPpLVAL_INTRO) { |
400 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 401 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
402 | else if (gv) |
403 | sv = save_scalar(gv); | |
404 | else | |
f1f66076 | 405 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 406 | } |
533c011a | 407 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 408 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 409 | } |
a0d0e21e | 410 | SETs(sv); |
79072805 LW |
411 | RETURN; |
412 | } | |
413 | ||
414 | PP(pp_av2arylen) | |
415 | { | |
97aff369 | 416 | dVAR; dSP; |
502c6561 | 417 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
418 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
419 | if (lvalue) { | |
420 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
421 | if (!*sv) { | |
422 | *sv = newSV_type(SVt_PVMG); | |
423 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
424 | } | |
425 | SETs(*sv); | |
426 | } else { | |
e1dccc0d | 427 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 428 | } |
79072805 LW |
429 | RETURN; |
430 | } | |
431 | ||
a0d0e21e LW |
432 | PP(pp_pos) |
433 | { | |
2154eca7 | 434 | dVAR; dSP; dPOPss; |
8ec5e241 | 435 | |
78f9721b | 436 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 437 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
438 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
439 | LvTYPE(ret) = '.'; | |
440 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
2154eca7 | 441 | PUSHs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
442 | RETURN; |
443 | } | |
444 | else { | |
96c2a8ff | 445 | const MAGIC * const mg = mg_find_mglob(sv); |
6174b39a | 446 | if (mg && mg->mg_len != -1) { |
2154eca7 | 447 | dTARGET; |
6174b39a | 448 | STRLEN i = mg->mg_len; |
25fdce4a | 449 | if (mg->mg_flags & MGf_BYTES && DO_UTF8(sv)) |
6174b39a FC |
450 | i = sv_pos_b2u_flags(sv, i, SV_GMAGIC|SV_CONST_RETURN); |
451 | PUSHu(i); | |
a0d0e21e LW |
452 | RETURN; |
453 | } | |
96c2a8ff | 454 | RETPUSHUNDEF; |
a0d0e21e LW |
455 | } |
456 | } | |
457 | ||
79072805 LW |
458 | PP(pp_rv2cv) |
459 | { | |
97aff369 | 460 | dVAR; dSP; |
79072805 | 461 | GV *gv; |
1eced8f8 | 462 | HV *stash_unused; |
c445ea15 | 463 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 464 | ? GV_ADDMG |
d14578b8 KW |
465 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
466 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
467 | ? GV_ADD|GV_NOEXPAND |
468 | : GV_ADD; | |
4633a7c4 LW |
469 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
470 | /* (But not in defined().) */ | |
e26df76a | 471 | |
1eced8f8 | 472 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 473 | if (cv) NOOP; |
e26df76a | 474 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
ea726b52 | 475 | cv = MUTABLE_CV(gv); |
e26df76a | 476 | } |
07055b4c | 477 | else |
ea726b52 | 478 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 479 | SETs(MUTABLE_SV(cv)); |
79072805 LW |
480 | RETURN; |
481 | } | |
482 | ||
c07a80fd | 483 | PP(pp_prototype) |
484 | { | |
97aff369 | 485 | dVAR; dSP; |
c07a80fd | 486 | CV *cv; |
487 | HV *stash; | |
488 | GV *gv; | |
fabdb6c0 | 489 | SV *ret = &PL_sv_undef; |
c07a80fd | 490 | |
6954f42f | 491 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 492 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 493 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 494 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 495 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
a96df643 | 496 | if (!code) |
b17a0679 FC |
497 | DIE(aTHX_ "Can't find an opnumber for \"%"UTF8f"\"", |
498 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); | |
4e338c21 | 499 | { |
b66130dd FC |
500 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
501 | if (sv) ret = sv; | |
502 | } | |
b8c38f0a | 503 | goto set; |
b6c543e3 IZ |
504 | } |
505 | } | |
f2c0649b | 506 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 507 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
508 | ret = newSVpvn_flags( |
509 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
510 | ); | |
b6c543e3 | 511 | set: |
c07a80fd | 512 | SETs(ret); |
513 | RETURN; | |
514 | } | |
515 | ||
a0d0e21e LW |
516 | PP(pp_anoncode) |
517 | { | |
97aff369 | 518 | dVAR; dSP; |
ea726b52 | 519 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 520 | if (CvCLONE(cv)) |
ad64d0ec | 521 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 522 | EXTEND(SP,1); |
ad64d0ec | 523 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
524 | RETURN; |
525 | } | |
526 | ||
527 | PP(pp_srefgen) | |
79072805 | 528 | { |
97aff369 | 529 | dVAR; dSP; |
71be2cbc | 530 | *SP = refto(*SP); |
79072805 | 531 | RETURN; |
8ec5e241 | 532 | } |
a0d0e21e LW |
533 | |
534 | PP(pp_refgen) | |
535 | { | |
97aff369 | 536 | dVAR; dSP; dMARK; |
a0d0e21e | 537 | if (GIMME != G_ARRAY) { |
5f0b1d4e GS |
538 | if (++MARK <= SP) |
539 | *MARK = *SP; | |
540 | else | |
3280af22 | 541 | *MARK = &PL_sv_undef; |
5f0b1d4e GS |
542 | *MARK = refto(*MARK); |
543 | SP = MARK; | |
544 | RETURN; | |
a0d0e21e | 545 | } |
bbce6d69 | 546 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 547 | while (++MARK <= SP) |
548 | *MARK = refto(*MARK); | |
a0d0e21e | 549 | RETURN; |
79072805 LW |
550 | } |
551 | ||
76e3520e | 552 | STATIC SV* |
cea2e8a9 | 553 | S_refto(pTHX_ SV *sv) |
71be2cbc | 554 | { |
97aff369 | 555 | dVAR; |
71be2cbc | 556 | SV* rv; |
557 | ||
7918f24d NC |
558 | PERL_ARGS_ASSERT_REFTO; |
559 | ||
71be2cbc | 560 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
561 | if (LvTARGLEN(sv)) | |
68dc0745 | 562 | vivify_defelem(sv); |
563 | if (!(sv = LvTARG(sv))) | |
3280af22 | 564 | sv = &PL_sv_undef; |
0dd88869 | 565 | else |
b37c2d43 | 566 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 567 | } |
d8b46c1b | 568 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
569 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
570 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 571 | SvTEMP_off(sv); |
b37c2d43 | 572 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 573 | } |
f2933f5f DM |
574 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
575 | sv = newSVsv(sv); | |
71be2cbc | 576 | else { |
577 | SvTEMP_off(sv); | |
b37c2d43 | 578 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 579 | } |
580 | rv = sv_newmortal(); | |
4df7f6af | 581 | sv_upgrade(rv, SVt_IV); |
b162af07 | 582 | SvRV_set(rv, sv); |
71be2cbc | 583 | SvROK_on(rv); |
584 | return rv; | |
585 | } | |
586 | ||
79072805 LW |
587 | PP(pp_ref) |
588 | { | |
97aff369 | 589 | dVAR; dSP; dTARGET; |
1b6737cc | 590 | SV * const sv = POPs; |
f12c7020 | 591 | |
511ddbdf FC |
592 | SvGETMAGIC(sv); |
593 | if (!SvROK(sv)) | |
4633a7c4 | 594 | RETPUSHNO; |
79072805 | 595 | |
a15456de BF |
596 | (void)sv_ref(TARG,SvRV(sv),TRUE); |
597 | PUSHTARG; | |
79072805 LW |
598 | RETURN; |
599 | } | |
600 | ||
601 | PP(pp_bless) | |
602 | { | |
97aff369 | 603 | dVAR; 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 | { | |
97aff369 | 644 | dVAR; dSP; |
b13b2135 | 645 | |
1b6737cc | 646 | SV *sv = POPs; |
a180b31a BF |
647 | STRLEN len; |
648 | const char * const elem = SvPV_const(sv, len); | |
159b6efe | 649 | GV * const gv = MUTABLE_GV(POPs); |
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; |
fb73857a | 715 | XPUSHs(sv); |
716 | RETURN; | |
717 | } | |
718 | ||
a0d0e21e | 719 | /* Pattern matching */ |
79072805 | 720 | |
a0d0e21e | 721 | PP(pp_study) |
79072805 | 722 | { |
97aff369 | 723 | dVAR; dSP; dPOPss; |
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. */ |
a4f4e906 NC |
729 | RETPUSHNO; |
730 | } | |
731 | ||
a58a85fa | 732 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 733 | complicates matters elsewhere. */ |
1e422769 | 734 | RETPUSHYES; |
79072805 LW |
735 | } |
736 | ||
a0d0e21e | 737 | PP(pp_trans) |
79072805 | 738 | { |
97aff369 | 739 | dVAR; dSP; dTARG; |
a0d0e21e LW |
740 | SV *sv; |
741 | ||
533c011a | 742 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 743 | sv = POPs; |
59f00321 RGS |
744 | else if (PL_op->op_private & OPpTARGET_MY) |
745 | sv = GETTARGET; | |
79072805 | 746 | else { |
54b9620d | 747 | sv = DEFSV; |
a0d0e21e | 748 | EXTEND(SP,1); |
79072805 | 749 | } |
bb16bae8 | 750 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
751 | STRLEN len; |
752 | const char * const pv = SvPV(sv,len); | |
753 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 754 | do_trans(newsv); |
290797f7 | 755 | PUSHs(newsv); |
bb16bae8 | 756 | } |
5bbe7184 FC |
757 | else { |
758 | TARG = sv_newmortal(); | |
759 | PUSHi(do_trans(sv)); | |
760 | } | |
a0d0e21e | 761 | RETURN; |
79072805 LW |
762 | } |
763 | ||
a0d0e21e | 764 | /* Lvalue operators. */ |
79072805 | 765 | |
81745e4e NC |
766 | static void |
767 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) | |
768 | { | |
769 | dVAR; | |
770 | STRLEN len; | |
771 | char *s; | |
772 | ||
773 | PERL_ARGS_ASSERT_DO_CHOMP; | |
774 | ||
775 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
776 | return; | |
777 | if (SvTYPE(sv) == SVt_PVAV) { | |
778 | I32 i; | |
779 | AV *const av = MUTABLE_AV(sv); | |
780 | const I32 max = AvFILL(av); | |
781 | ||
782 | for (i = 0; i <= max; i++) { | |
783 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
784 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
785 | do_chomp(retval, sv, chomping); | |
786 | } | |
787 | return; | |
788 | } | |
789 | else if (SvTYPE(sv) == SVt_PVHV) { | |
790 | HV* const hv = MUTABLE_HV(sv); | |
791 | HE* entry; | |
792 | (void)hv_iterinit(hv); | |
793 | while ((entry = hv_iternext(hv))) | |
794 | do_chomp(retval, hv_iterval(hv,entry), chomping); | |
795 | return; | |
796 | } | |
797 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 798 | Perl_croak_no_modify(); |
81745e4e | 799 | } |
e3918bb7 FC |
800 | else if (SvIsCOW(sv)) { |
801 | sv_force_normal_flags(sv, 0); | |
802 | } | |
81745e4e NC |
803 | |
804 | if (PL_encoding) { | |
805 | if (!SvUTF8(sv)) { | |
806 | /* XXX, here sv is utf8-ized as a side-effect! | |
807 | If encoding.pm is used properly, almost string-generating | |
808 | operations, including literal strings, chr(), input data, etc. | |
809 | should have been utf8-ized already, right? | |
810 | */ | |
811 | sv_recode_to_utf8(sv, PL_encoding); | |
812 | } | |
813 | } | |
814 | ||
815 | s = SvPV(sv, len); | |
816 | if (chomping) { | |
817 | char *temp_buffer = NULL; | |
818 | SV *svrecode = NULL; | |
819 | ||
820 | if (s && len) { | |
821 | s += --len; | |
822 | if (RsPARA(PL_rs)) { | |
823 | if (*s != '\n') | |
824 | goto nope; | |
825 | ++SvIVX(retval); | |
826 | while (len && s[-1] == '\n') { | |
827 | --len; | |
828 | --s; | |
829 | ++SvIVX(retval); | |
830 | } | |
831 | } | |
832 | else { | |
833 | STRLEN rslen, rs_charlen; | |
834 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
835 | ||
836 | rs_charlen = SvUTF8(PL_rs) | |
837 | ? sv_len_utf8(PL_rs) | |
838 | : rslen; | |
839 | ||
840 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
841 | /* Assumption is that rs is shorter than the scalar. */ | |
842 | if (SvUTF8(PL_rs)) { | |
843 | /* RS is utf8, scalar is 8 bit. */ | |
844 | bool is_utf8 = TRUE; | |
845 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
846 | &rslen, &is_utf8); | |
847 | if (is_utf8) { | |
848 | /* Cannot downgrade, therefore cannot possibly match | |
849 | */ | |
850 | assert (temp_buffer == rsptr); | |
851 | temp_buffer = NULL; | |
852 | goto nope; | |
853 | } | |
854 | rsptr = temp_buffer; | |
855 | } | |
856 | else if (PL_encoding) { | |
857 | /* RS is 8 bit, encoding.pm is used. | |
858 | * Do not recode PL_rs as a side-effect. */ | |
859 | svrecode = newSVpvn(rsptr, rslen); | |
860 | sv_recode_to_utf8(svrecode, PL_encoding); | |
861 | rsptr = SvPV_const(svrecode, rslen); | |
862 | rs_charlen = sv_len_utf8(svrecode); | |
863 | } | |
864 | else { | |
865 | /* RS is 8 bit, scalar is utf8. */ | |
866 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
867 | rsptr = temp_buffer; | |
868 | } | |
869 | } | |
870 | if (rslen == 1) { | |
871 | if (*s != *rsptr) | |
872 | goto nope; | |
873 | ++SvIVX(retval); | |
874 | } | |
875 | else { | |
876 | if (len < rslen - 1) | |
877 | goto nope; | |
878 | len -= rslen - 1; | |
879 | s -= rslen - 1; | |
880 | if (memNE(s, rsptr, rslen)) | |
881 | goto nope; | |
882 | SvIVX(retval) += rs_charlen; | |
883 | } | |
884 | } | |
fbac7ddf | 885 | s = SvPV_force_nomg_nolen(sv); |
81745e4e NC |
886 | SvCUR_set(sv, len); |
887 | *SvEND(sv) = '\0'; | |
888 | SvNIOK_off(sv); | |
889 | SvSETMAGIC(sv); | |
890 | } | |
891 | nope: | |
892 | ||
893 | SvREFCNT_dec(svrecode); | |
894 | ||
895 | Safefree(temp_buffer); | |
896 | } else { | |
897 | if (len && !SvPOK(sv)) | |
898 | s = SvPV_force_nomg(sv, len); | |
899 | if (DO_UTF8(sv)) { | |
900 | if (s && len) { | |
901 | char * const send = s + len; | |
902 | char * const start = s; | |
903 | s = send - 1; | |
904 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
905 | s--; | |
906 | if (is_utf8_string((U8*)s, send - s)) { | |
907 | sv_setpvn(retval, s, send - s); | |
908 | *s = '\0'; | |
909 | SvCUR_set(sv, s - start); | |
910 | SvNIOK_off(sv); | |
911 | SvUTF8_on(retval); | |
912 | } | |
913 | } | |
914 | else | |
915 | sv_setpvs(retval, ""); | |
916 | } | |
917 | else if (s && len) { | |
918 | s += --len; | |
919 | sv_setpvn(retval, s, 1); | |
920 | *s = '\0'; | |
921 | SvCUR_set(sv, len); | |
922 | SvUTF8_off(sv); | |
923 | SvNIOK_off(sv); | |
924 | } | |
925 | else | |
926 | sv_setpvs(retval, ""); | |
927 | SvSETMAGIC(sv); | |
928 | } | |
929 | } | |
930 | ||
a0d0e21e LW |
931 | PP(pp_schop) |
932 | { | |
97aff369 | 933 | dVAR; dSP; dTARGET; |
fa54efae NC |
934 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
935 | ||
936 | if (chomping) | |
937 | sv_setiv(TARG, 0); | |
938 | do_chomp(TARG, TOPs, chomping); | |
a0d0e21e LW |
939 | SETTARG; |
940 | RETURN; | |
79072805 LW |
941 | } |
942 | ||
a0d0e21e | 943 | PP(pp_chop) |
79072805 | 944 | { |
97aff369 | 945 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 946 | const bool chomping = PL_op->op_type == OP_CHOMP; |
8ec5e241 | 947 | |
fa54efae NC |
948 | if (chomping) |
949 | sv_setiv(TARG, 0); | |
20cf1f79 | 950 | while (MARK < SP) |
fa54efae | 951 | do_chomp(TARG, *++MARK, chomping); |
20cf1f79 NC |
952 | SP = ORIGMARK; |
953 | XPUSHTARG; | |
a0d0e21e | 954 | RETURN; |
79072805 LW |
955 | } |
956 | ||
a0d0e21e LW |
957 | PP(pp_undef) |
958 | { | |
97aff369 | 959 | dVAR; dSP; |
a0d0e21e LW |
960 | SV *sv; |
961 | ||
533c011a | 962 | if (!PL_op->op_private) { |
774d564b | 963 | EXTEND(SP, 1); |
a0d0e21e | 964 | RETPUSHUNDEF; |
774d564b | 965 | } |
79072805 | 966 | |
a0d0e21e LW |
967 | sv = POPs; |
968 | if (!sv) | |
969 | RETPUSHUNDEF; | |
85e6fe83 | 970 | |
765f542d | 971 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
85e6fe83 | 972 | |
a0d0e21e LW |
973 | switch (SvTYPE(sv)) { |
974 | case SVt_NULL: | |
975 | break; | |
976 | case SVt_PVAV: | |
60edcf09 | 977 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
978 | break; |
979 | case SVt_PVHV: | |
60edcf09 | 980 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
981 | break; |
982 | case SVt_PVCV: | |
a2a5de95 | 983 | if (cv_const_sv((const CV *)sv)) |
714cd18f BF |
984 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
985 | "Constant subroutine %"SVf" undefined", | |
986 | SVfARG(CvANON((const CV *)sv) | |
987 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
988 | : sv_2mortal(newSVhek( |
989 | CvNAMED(sv) | |
990 | ? CvNAME_HEK((CV *)sv) | |
991 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
992 | )) | |
993 | )); | |
5f66b61c | 994 | /* FALLTHROUGH */ |
9607fc9c | 995 | case SVt_PVFM: |
6fc92669 GS |
996 | { |
997 | /* let user-undef'd sub keep its identity */ | |
ea726b52 | 998 | GV* const gv = CvGV((const CV *)sv); |
b290562e FC |
999 | HEK * const hek = CvNAME_HEK((CV *)sv); |
1000 | if (hek) share_hek_hek(hek); | |
ea726b52 | 1001 | cv_undef(MUTABLE_CV(sv)); |
b290562e FC |
1002 | if (gv) CvGV_set(MUTABLE_CV(sv), gv); |
1003 | else if (hek) { | |
1004 | SvANY((CV *)sv)->xcv_gv_u.xcv_hek = hek; | |
1005 | CvNAMED_on(sv); | |
1006 | } | |
6fc92669 | 1007 | } |
a0d0e21e | 1008 | break; |
8e07c86e | 1009 | case SVt_PVGV: |
bc1df6c2 FC |
1010 | assert(isGV_with_GP(sv)); |
1011 | assert(!SvFAKE(sv)); | |
1012 | { | |
20408e3c | 1013 | GP *gp; |
dd69841b BB |
1014 | HV *stash; |
1015 | ||
dd69841b | 1016 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
1017 | bool method_changed |
1018 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
1019 | && HvENAME_get(stash); | |
1020 | /* undef *Foo:: */ | |
1021 | if((stash = GvHV((const GV *)sv))) { | |
1022 | if(HvENAME_get(stash)) | |
1023 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
1024 | else stash = NULL; | |
1025 | } | |
dd69841b | 1026 | |
159b6efe | 1027 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 1028 | Newxz(gp, 1, GP); |
c43ae56f | 1029 | GvGP_set(sv, gp_ref(gp)); |
2e3295e3 | 1030 | #ifndef PERL_DONT_CREATE_GVSV |
561b68a9 | 1031 | GvSV(sv) = newSV(0); |
2e3295e3 | 1032 | #endif |
57843af0 | 1033 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 1034 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 1035 | GvMULTI_on(sv); |
e530fb81 FC |
1036 | |
1037 | if(stash) | |
afdbe55d | 1038 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
1039 | stash = NULL; |
1040 | /* undef *Foo::ISA */ | |
1041 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
1042 | && (stash = GvSTASH((const GV *)sv)) | |
1043 | && (method_changed || HvENAME(stash)) ) | |
1044 | mro_isa_changed_in(stash); | |
1045 | else if(method_changed) | |
1046 | mro_method_changed_in( | |
da9043f5 | 1047 | GvSTASH((const GV *)sv) |
e530fb81 FC |
1048 | ); |
1049 | ||
6e592b3a | 1050 | break; |
20408e3c | 1051 | } |
a0d0e21e | 1052 | default: |
b15aece3 | 1053 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 1054 | SvPV_free(sv); |
c445ea15 | 1055 | SvPV_set(sv, NULL); |
4633a7c4 | 1056 | SvLEN_set(sv, 0); |
a0d0e21e | 1057 | } |
0c34ef67 | 1058 | SvOK_off(sv); |
4633a7c4 | 1059 | SvSETMAGIC(sv); |
79072805 | 1060 | } |
a0d0e21e LW |
1061 | |
1062 | RETPUSHUNDEF; | |
79072805 LW |
1063 | } |
1064 | ||
a0d0e21e LW |
1065 | PP(pp_postinc) |
1066 | { | |
97aff369 | 1067 | dVAR; dSP; dTARGET; |
c22c99bc FC |
1068 | const bool inc = |
1069 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
60092ce4 | 1070 | if (SvTYPE(TOPs) >= SVt_PVAV || (isGV_with_GP(TOPs) && !SvFAKE(TOPs))) |
cb077ed2 | 1071 | Perl_croak_no_modify(); |
7dcb9b98 DM |
1072 | if (SvROK(TOPs)) |
1073 | TARG = sv_newmortal(); | |
a0d0e21e | 1074 | sv_setsv(TARG, TOPs); |
4bac9ae4 | 1075 | if (!SvREADONLY(TOPs) && !SvGMAGICAL(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
c22c99bc | 1076 | && SvIVX(TOPs) != (inc ? IV_MAX : IV_MIN)) |
55497cff | 1077 | { |
c22c99bc | 1078 | SvIV_set(TOPs, SvIVX(TOPs) + (inc ? 1 : -1)); |
55497cff | 1079 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 | 1080 | } |
c22c99bc | 1081 | else if (inc) |
6f1401dc | 1082 | sv_inc_nomg(TOPs); |
c22c99bc | 1083 | else sv_dec_nomg(TOPs); |
a0d0e21e | 1084 | SvSETMAGIC(TOPs); |
1e54a23f | 1085 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1086 | if (inc && !SvOK(TARG)) |
a0d0e21e LW |
1087 | sv_setiv(TARG, 0); |
1088 | SETs(TARG); | |
1089 | return NORMAL; | |
1090 | } | |
79072805 | 1091 | |
a0d0e21e LW |
1092 | /* Ordinary operators. */ |
1093 | ||
1094 | PP(pp_pow) | |
1095 | { | |
800401ee | 1096 | dVAR; dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1097 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1098 | bool is_int = 0; |
1099 | #endif | |
6f1401dc DM |
1100 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1101 | svr = TOPs; | |
1102 | svl = TOPm1s; | |
52a96ae6 HS |
1103 | #ifdef PERL_PRESERVE_IVUV |
1104 | /* For integer to integer power, we do the calculation by hand wherever | |
1105 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1106 | integer afterwards. */ | |
01f91bf2 | 1107 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1108 | UV power; |
1109 | bool baseuok; | |
1110 | UV baseuv; | |
1111 | ||
800401ee JH |
1112 | if (SvUOK(svr)) { |
1113 | power = SvUVX(svr); | |
900658e3 | 1114 | } else { |
800401ee | 1115 | const IV iv = SvIVX(svr); |
900658e3 PF |
1116 | if (iv >= 0) { |
1117 | power = iv; | |
1118 | } else { | |
1119 | goto float_it; /* Can't do negative powers this way. */ | |
1120 | } | |
1121 | } | |
1122 | ||
800401ee | 1123 | baseuok = SvUOK(svl); |
900658e3 | 1124 | if (baseuok) { |
800401ee | 1125 | baseuv = SvUVX(svl); |
900658e3 | 1126 | } else { |
800401ee | 1127 | const IV iv = SvIVX(svl); |
900658e3 PF |
1128 | if (iv >= 0) { |
1129 | baseuv = iv; | |
1130 | baseuok = TRUE; /* effectively it's a UV now */ | |
1131 | } else { | |
1132 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1133 | } | |
1134 | } | |
52a96ae6 HS |
1135 | /* now we have integer ** positive integer. */ |
1136 | is_int = 1; | |
1137 | ||
1138 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1139 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1140 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1141 | The logic here will work for any base (even non-integer |
1142 | bases) but it can be less accurate than | |
1143 | pow (base,power) or exp (power * log (base)) when the | |
1144 | intermediate values start to spill out of the mantissa. | |
1145 | With powers of 2 we know this can't happen. | |
1146 | And powers of 2 are the favourite thing for perl | |
1147 | programmers to notice ** not doing what they mean. */ | |
1148 | NV result = 1.0; | |
1149 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1150 | |
1151 | if (power & 1) { | |
1152 | result *= base; | |
1153 | } | |
1154 | while (power >>= 1) { | |
1155 | base *= base; | |
1156 | if (power & 1) { | |
1157 | result *= base; | |
1158 | } | |
1159 | } | |
58d76dfd JH |
1160 | SP--; |
1161 | SETn( result ); | |
6f1401dc | 1162 | SvIV_please_nomg(svr); |
58d76dfd | 1163 | RETURN; |
52a96ae6 | 1164 | } else { |
eb578fdb KW |
1165 | unsigned int highbit = 8 * sizeof(UV); |
1166 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1167 | while (diff >>= 1) { |
1168 | highbit -= diff; | |
1169 | if (baseuv >> highbit) { | |
1170 | highbit += diff; | |
1171 | } | |
52a96ae6 HS |
1172 | } |
1173 | /* we now have baseuv < 2 ** highbit */ | |
1174 | if (power * highbit <= 8 * sizeof(UV)) { | |
1175 | /* result will definitely fit in UV, so use UV math | |
1176 | on same algorithm as above */ | |
eb578fdb KW |
1177 | UV result = 1; |
1178 | UV base = baseuv; | |
f2338a2e | 1179 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1180 | if (odd_power) { |
1181 | result *= base; | |
1182 | } | |
1183 | while (power >>= 1) { | |
1184 | base *= base; | |
1185 | if (power & 1) { | |
52a96ae6 | 1186 | result *= base; |
52a96ae6 HS |
1187 | } |
1188 | } | |
1189 | SP--; | |
0615a994 | 1190 | if (baseuok || !odd_power) |
52a96ae6 HS |
1191 | /* answer is positive */ |
1192 | SETu( result ); | |
1193 | else if (result <= (UV)IV_MAX) | |
1194 | /* answer negative, fits in IV */ | |
1195 | SETi( -(IV)result ); | |
1196 | else if (result == (UV)IV_MIN) | |
1197 | /* 2's complement assumption: special case IV_MIN */ | |
1198 | SETi( IV_MIN ); | |
1199 | else | |
1200 | /* answer negative, doesn't fit */ | |
1201 | SETn( -(NV)result ); | |
1202 | RETURN; | |
1203 | } | |
1204 | } | |
58d76dfd | 1205 | } |
52a96ae6 | 1206 | float_it: |
58d76dfd | 1207 | #endif |
a0d0e21e | 1208 | { |
6f1401dc DM |
1209 | NV right = SvNV_nomg(svr); |
1210 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1211 | (void)POPs; |
3aaeb624 JA |
1212 | |
1213 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1214 | /* | |
1215 | We are building perl with long double support and are on an AIX OS | |
1216 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1217 | negative base. This was reported to IBM as PMR #23047-379 on | |
1218 | 03/06/2006. The problem exists in at least the following versions | |
1219 | of AIX and the libm fileset, and no doubt others as well: | |
1220 | ||
1221 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1222 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1223 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1224 | ||
1225 | So, until IBM fixes powl(), we provide the following workaround to | |
1226 | handle the problem ourselves. Our logic is as follows: for | |
1227 | negative bases (left), we use fmod(right, 2) to check if the | |
1228 | exponent is an odd or even integer: | |
1229 | ||
1230 | - if odd, powl(left, right) == -powl(-left, right) | |
1231 | - if even, powl(left, right) == powl(-left, right) | |
1232 | ||
1233 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1234 | we just return that (as NV_NAN). | |
1235 | */ | |
1236 | ||
1237 | if (left < 0.0) { | |
1238 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1239 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1240 | SETn( -Perl_pow( -left, right) ); | |
1241 | } else if (mod2 == 0.0) { /* even integer */ | |
1242 | SETn( Perl_pow( -left, right) ); | |
1243 | } else { /* fractional power */ | |
1244 | SETn( NV_NAN ); | |
1245 | } | |
1246 | } else { | |
1247 | SETn( Perl_pow( left, right) ); | |
1248 | } | |
1249 | #else | |
52a96ae6 | 1250 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1251 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1252 | ||
52a96ae6 HS |
1253 | #ifdef PERL_PRESERVE_IVUV |
1254 | if (is_int) | |
6f1401dc | 1255 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1256 | #endif |
1257 | RETURN; | |
93a17b20 | 1258 | } |
a0d0e21e LW |
1259 | } |
1260 | ||
1261 | PP(pp_multiply) | |
1262 | { | |
800401ee | 1263 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1264 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1265 | svr = TOPs; | |
1266 | svl = TOPm1s; | |
28e5dec8 | 1267 | #ifdef PERL_PRESERVE_IVUV |
01f91bf2 | 1268 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1269 | /* Unless the left argument is integer in range we are going to have to |
1270 | use NV maths. Hence only attempt to coerce the right argument if | |
1271 | we know the left is integer. */ | |
1272 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1273 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1274 | bool auvok = SvUOK(svl); |
1275 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1276 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1277 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1278 | UV alow; | |
1279 | UV ahigh; | |
1280 | UV blow; | |
1281 | UV bhigh; | |
1282 | ||
1283 | if (auvok) { | |
800401ee | 1284 | alow = SvUVX(svl); |
28e5dec8 | 1285 | } else { |
800401ee | 1286 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1287 | if (aiv >= 0) { |
1288 | alow = aiv; | |
1289 | auvok = TRUE; /* effectively it's a UV now */ | |
1290 | } else { | |
1291 | alow = -aiv; /* abs, auvok == false records sign */ | |
1292 | } | |
1293 | } | |
1294 | if (buvok) { | |
800401ee | 1295 | blow = SvUVX(svr); |
28e5dec8 | 1296 | } else { |
800401ee | 1297 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1298 | if (biv >= 0) { |
1299 | blow = biv; | |
1300 | buvok = TRUE; /* effectively it's a UV now */ | |
1301 | } else { | |
1302 | blow = -biv; /* abs, buvok == false records sign */ | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* If this does sign extension on unsigned it's time for plan B */ | |
1307 | ahigh = alow >> (4 * sizeof (UV)); | |
1308 | alow &= botmask; | |
1309 | bhigh = blow >> (4 * sizeof (UV)); | |
1310 | blow &= botmask; | |
1311 | if (ahigh && bhigh) { | |
6f207bd3 | 1312 | NOOP; |
28e5dec8 JH |
1313 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1314 | which is overflow. Drop to NVs below. */ | |
1315 | } else if (!ahigh && !bhigh) { | |
1316 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1317 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1318 | const UV product = alow * blow; |
28e5dec8 JH |
1319 | if (auvok == buvok) { |
1320 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1321 | SP--; | |
1322 | SETu( product ); | |
1323 | RETURN; | |
1324 | } else if (product <= (UV)IV_MIN) { | |
1325 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1326 | /* -ve result, which could overflow an IV */ | |
1327 | SP--; | |
25716404 | 1328 | SETi( -(IV)product ); |
28e5dec8 JH |
1329 | RETURN; |
1330 | } /* else drop to NVs below. */ | |
1331 | } else { | |
1332 | /* One operand is large, 1 small */ | |
1333 | UV product_middle; | |
1334 | if (bhigh) { | |
1335 | /* swap the operands */ | |
1336 | ahigh = bhigh; | |
1337 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1338 | blow = alow; | |
1339 | alow = bhigh; | |
1340 | } | |
1341 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1342 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1343 | product_middle = ahigh * blow; | |
1344 | if (!(product_middle & topmask)) { | |
1345 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1346 | UV product_low; | |
1347 | product_middle <<= (4 * sizeof (UV)); | |
1348 | product_low = alow * blow; | |
1349 | ||
1350 | /* as for pp_add, UV + something mustn't get smaller. | |
1351 | IIRC ANSI mandates this wrapping *behaviour* for | |
1352 | unsigned whatever the actual representation*/ | |
1353 | product_low += product_middle; | |
1354 | if (product_low >= product_middle) { | |
1355 | /* didn't overflow */ | |
1356 | if (auvok == buvok) { | |
1357 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1358 | SP--; | |
1359 | SETu( product_low ); | |
1360 | RETURN; | |
1361 | } else if (product_low <= (UV)IV_MIN) { | |
1362 | /* 2s complement assumption again */ | |
1363 | /* -ve result, which could overflow an IV */ | |
1364 | SP--; | |
25716404 | 1365 | SETi( -(IV)product_low ); |
28e5dec8 JH |
1366 | RETURN; |
1367 | } /* else drop to NVs below. */ | |
1368 | } | |
1369 | } /* product_middle too large */ | |
1370 | } /* ahigh && bhigh */ | |
800401ee JH |
1371 | } /* SvIOK(svl) */ |
1372 | } /* SvIOK(svr) */ | |
28e5dec8 | 1373 | #endif |
a0d0e21e | 1374 | { |
6f1401dc DM |
1375 | NV right = SvNV_nomg(svr); |
1376 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1377 | (void)POPs; |
a0d0e21e LW |
1378 | SETn( left * right ); |
1379 | RETURN; | |
79072805 | 1380 | } |
a0d0e21e LW |
1381 | } |
1382 | ||
1383 | PP(pp_divide) | |
1384 | { | |
800401ee | 1385 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1386 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1387 | svr = TOPs; | |
1388 | svl = TOPm1s; | |
5479d192 | 1389 | /* Only try to do UV divide first |
68795e93 | 1390 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1391 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1392 | to preserve)) | |
1393 | The assumption is that it is better to use floating point divide | |
1394 | whenever possible, only doing integer divide first if we can't be sure. | |
1395 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1396 | can be too large to preserve, so don't need to compile the code to | |
1397 | test the size of UVs. */ | |
1398 | ||
a0d0e21e | 1399 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1400 | # define PERL_TRY_UV_DIVIDE |
1401 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1402 | #else |
5479d192 NC |
1403 | # ifdef PERL_PRESERVE_IVUV |
1404 | # ifndef NV_PRESERVES_UV | |
1405 | # define PERL_TRY_UV_DIVIDE | |
1406 | # endif | |
1407 | # endif | |
a0d0e21e | 1408 | #endif |
5479d192 NC |
1409 | |
1410 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1411 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1412 | bool left_non_neg = SvUOK(svl); |
1413 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1414 | UV left; |
1415 | UV right; | |
1416 | ||
1417 | if (right_non_neg) { | |
800401ee | 1418 | right = SvUVX(svr); |
5479d192 NC |
1419 | } |
1420 | else { | |
800401ee | 1421 | const IV biv = SvIVX(svr); |
5479d192 NC |
1422 | if (biv >= 0) { |
1423 | right = biv; | |
1424 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1425 | } | |
1426 | else { | |
1427 | right = -biv; | |
1428 | } | |
1429 | } | |
1430 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1431 | warning before dieing, hence this test goes here. | |
1432 | If it were immediately before the second SvIV_please, then | |
1433 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1434 | no inspection would give no warning. */ |
5479d192 NC |
1435 | if (right == 0) |
1436 | DIE(aTHX_ "Illegal division by zero"); | |
1437 | ||
1438 | if (left_non_neg) { | |
800401ee | 1439 | left = SvUVX(svl); |
5479d192 NC |
1440 | } |
1441 | else { | |
800401ee | 1442 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1443 | if (aiv >= 0) { |
1444 | left = aiv; | |
1445 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1446 | } | |
1447 | else { | |
1448 | left = -aiv; | |
1449 | } | |
1450 | } | |
1451 | ||
1452 | if (left >= right | |
1453 | #ifdef SLOPPYDIVIDE | |
1454 | /* For sloppy divide we always attempt integer division. */ | |
1455 | #else | |
1456 | /* Otherwise we only attempt it if either or both operands | |
1457 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1458 | we fall through to the NV divide code below. However, |
1459 | as left >= right to ensure integer result here, we know that | |
1460 | we can skip the test on the right operand - right big | |
1461 | enough not to be preserved can't get here unless left is | |
1462 | also too big. */ | |
1463 | ||
1464 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1465 | #endif |
1466 | ) { | |
1467 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1468 | const UV result = left / right; |
5479d192 NC |
1469 | if (result * right == left) { |
1470 | SP--; /* result is valid */ | |
1471 | if (left_non_neg == right_non_neg) { | |
1472 | /* signs identical, result is positive. */ | |
1473 | SETu( result ); | |
1474 | RETURN; | |
1475 | } | |
1476 | /* 2s complement assumption */ | |
1477 | if (result <= (UV)IV_MIN) | |
91f3b821 | 1478 | SETi( -(IV)result ); |
5479d192 NC |
1479 | else { |
1480 | /* It's exact but too negative for IV. */ | |
1481 | SETn( -(NV)result ); | |
1482 | } | |
1483 | RETURN; | |
1484 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1485 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1486 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1487 | #endif /* PERL_TRY_UV_DIVIDE */ |
1488 | { | |
6f1401dc DM |
1489 | NV right = SvNV_nomg(svr); |
1490 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1491 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1492 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1493 | if (! Perl_isnan(right) && right == 0.0) | |
1494 | #else | |
659c4b96 | 1495 | if (right == 0.0) |
ebc6a117 | 1496 | #endif |
5479d192 NC |
1497 | DIE(aTHX_ "Illegal division by zero"); |
1498 | PUSHn( left / right ); | |
1499 | RETURN; | |
79072805 | 1500 | } |
a0d0e21e LW |
1501 | } |
1502 | ||
1503 | PP(pp_modulo) | |
1504 | { | |
6f1401dc DM |
1505 | dVAR; dSP; dATARGET; |
1506 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
a0d0e21e | 1507 | { |
9c5ffd7c JH |
1508 | UV left = 0; |
1509 | UV right = 0; | |
dc656993 JH |
1510 | bool left_neg = FALSE; |
1511 | bool right_neg = FALSE; | |
e2c88acc NC |
1512 | bool use_double = FALSE; |
1513 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1514 | NV dright = 0.0; |
1515 | NV dleft = 0.0; | |
6f1401dc DM |
1516 | SV * const svr = TOPs; |
1517 | SV * const svl = TOPm1s; | |
01f91bf2 | 1518 | if (SvIV_please_nomg(svr)) { |
800401ee | 1519 | right_neg = !SvUOK(svr); |
e2c88acc | 1520 | if (!right_neg) { |
800401ee | 1521 | right = SvUVX(svr); |
e2c88acc | 1522 | } else { |
800401ee | 1523 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1524 | if (biv >= 0) { |
1525 | right = biv; | |
1526 | right_neg = FALSE; /* effectively it's a UV now */ | |
1527 | } else { | |
1528 | right = -biv; | |
1529 | } | |
1530 | } | |
1531 | } | |
1532 | else { | |
6f1401dc | 1533 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1534 | right_neg = dright < 0; |
1535 | if (right_neg) | |
1536 | dright = -dright; | |
e2c88acc NC |
1537 | if (dright < UV_MAX_P1) { |
1538 | right = U_V(dright); | |
1539 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1540 | } else { | |
1541 | use_double = TRUE; | |
1542 | } | |
787eafbd | 1543 | } |
a0d0e21e | 1544 | |
e2c88acc NC |
1545 | /* At this point use_double is only true if right is out of range for |
1546 | a UV. In range NV has been rounded down to nearest UV and | |
1547 | use_double false. */ | |
01f91bf2 | 1548 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1549 | left_neg = !SvUOK(svl); |
e2c88acc | 1550 | if (!left_neg) { |
800401ee | 1551 | left = SvUVX(svl); |
e2c88acc | 1552 | } else { |
800401ee | 1553 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1554 | if (aiv >= 0) { |
1555 | left = aiv; | |
1556 | left_neg = FALSE; /* effectively it's a UV now */ | |
1557 | } else { | |
1558 | left = -aiv; | |
1559 | } | |
1560 | } | |
e2c88acc | 1561 | } |
787eafbd | 1562 | else { |
6f1401dc | 1563 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1564 | left_neg = dleft < 0; |
1565 | if (left_neg) | |
1566 | dleft = -dleft; | |
68dc0745 | 1567 | |
e2c88acc NC |
1568 | /* This should be exactly the 5.6 behaviour - if left and right are |
1569 | both in range for UV then use U_V() rather than floor. */ | |
1570 | if (!use_double) { | |
1571 | if (dleft < UV_MAX_P1) { | |
1572 | /* right was in range, so is dleft, so use UVs not double. | |
1573 | */ | |
1574 | left = U_V(dleft); | |
1575 | } | |
1576 | /* left is out of range for UV, right was in range, so promote | |
1577 | right (back) to double. */ | |
1578 | else { | |
1579 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1580 | consistent with the implicit +0 floor in the U_V() | |
1581 | inside the #if 1. */ | |
1582 | dleft = Perl_floor(dleft + 0.5); | |
1583 | use_double = TRUE; | |
1584 | if (dright_valid) | |
1585 | dright = Perl_floor(dright + 0.5); | |
1586 | else | |
1587 | dright = right; | |
1588 | } | |
1589 | } | |
1590 | } | |
6f1401dc | 1591 | sp -= 2; |
787eafbd | 1592 | if (use_double) { |
65202027 | 1593 | NV dans; |
787eafbd | 1594 | |
659c4b96 | 1595 | if (!dright) |
cea2e8a9 | 1596 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1597 | |
65202027 | 1598 | dans = Perl_fmod(dleft, dright); |
659c4b96 | 1599 | if ((left_neg != right_neg) && dans) |
787eafbd IZ |
1600 | dans = dright - dans; |
1601 | if (right_neg) | |
1602 | dans = -dans; | |
1603 | sv_setnv(TARG, dans); | |
1604 | } | |
1605 | else { | |
1606 | UV ans; | |
1607 | ||
787eafbd | 1608 | if (!right) |
cea2e8a9 | 1609 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1610 | |
1611 | ans = left % right; | |
1612 | if ((left_neg != right_neg) && ans) | |
1613 | ans = right - ans; | |
1614 | if (right_neg) { | |
1615 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1616 | /* could change -foo to be (~foo)+1 instead */ | |
1617 | if (ans <= ~((UV)IV_MAX)+1) | |
1618 | sv_setiv(TARG, ~ans+1); | |
1619 | else | |
65202027 | 1620 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1621 | } |
1622 | else | |
1623 | sv_setuv(TARG, ans); | |
1624 | } | |
1625 | PUSHTARG; | |
1626 | RETURN; | |
79072805 | 1627 | } |
a0d0e21e | 1628 | } |
79072805 | 1629 | |
a0d0e21e LW |
1630 | PP(pp_repeat) |
1631 | { | |
6f1401dc | 1632 | dVAR; dSP; dATARGET; |
eb578fdb | 1633 | IV count; |
6f1401dc DM |
1634 | SV *sv; |
1635 | ||
1636 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
1637 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
1638 | sv = POPs; | |
1639 | SvGETMAGIC(sv); | |
1640 | } | |
1641 | else { | |
1642 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
1643 | sv = POPs; | |
1644 | } | |
1645 | ||
2b573ace JH |
1646 | if (SvIOKp(sv)) { |
1647 | if (SvUOK(sv)) { | |
6f1401dc | 1648 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1649 | if (uv > IV_MAX) |
1650 | count = IV_MAX; /* The best we can do? */ | |
1651 | else | |
1652 | count = uv; | |
1653 | } else { | |
6f1401dc | 1654 | const IV iv = SvIV_nomg(sv); |
2b573ace JH |
1655 | if (iv < 0) |
1656 | count = 0; | |
1657 | else | |
1658 | count = iv; | |
1659 | } | |
1660 | } | |
1661 | else if (SvNOKp(sv)) { | |
6f1401dc | 1662 | const NV nv = SvNV_nomg(sv); |
2b573ace JH |
1663 | if (nv < 0.0) |
1664 | count = 0; | |
1665 | else | |
1666 | count = (IV)nv; | |
1667 | } | |
1668 | else | |
6f1401dc DM |
1669 | count = SvIV_nomg(sv); |
1670 | ||
533c011a | 1671 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1672 | dMARK; |
a1894d81 | 1673 | static const char* const oom_list_extend = "Out of memory during list extend"; |
0bd48802 AL |
1674 | const I32 items = SP - MARK; |
1675 | const I32 max = items * count; | |
da9e430b | 1676 | const U8 mod = PL_op->op_flags & OPf_MOD; |
79072805 | 1677 | |
2b573ace JH |
1678 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
1679 | /* Did the max computation overflow? */ | |
27d5b266 | 1680 | if (items > 0 && max > 0 && (max < items || max < count)) |
0157ef98 | 1681 | Perl_croak(aTHX_ "%s", oom_list_extend); |
a0d0e21e LW |
1682 | MEXTEND(MARK, max); |
1683 | if (count > 1) { | |
1684 | while (SP > MARK) { | |
976c8a39 JH |
1685 | #if 0 |
1686 | /* This code was intended to fix 20010809.028: | |
1687 | ||
1688 | $x = 'abcd'; | |
1689 | for (($x =~ /./g) x 2) { | |
1690 | print chop; # "abcdabcd" expected as output. | |
1691 | } | |
1692 | ||
1693 | * but that change (#11635) broke this code: | |
1694 | ||
1695 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
1696 | ||
1697 | * I can't think of a better fix that doesn't introduce | |
1698 | * an efficiency hit by copying the SVs. The stack isn't | |
1699 | * refcounted, and mortalisation obviously doesn't | |
1700 | * Do The Right Thing when the stack has more than | |
1701 | * one pointer to the same mortal value. | |
1702 | * .robin. | |
1703 | */ | |
e30acc16 RH |
1704 | if (*SP) { |
1705 | *SP = sv_2mortal(newSVsv(*SP)); | |
1706 | SvREADONLY_on(*SP); | |
1707 | } | |
976c8a39 JH |
1708 | #else |
1709 | if (*SP) | |
da9e430b FC |
1710 | { |
1711 | if (mod && SvPADTMP(*SP) && !IS_PADGV(*SP)) | |
1712 | *SP = sv_mortalcopy(*SP); | |
976c8a39 | 1713 | SvTEMP_off((*SP)); |
da9e430b | 1714 | } |
976c8a39 | 1715 | #endif |
a0d0e21e | 1716 | SP--; |
79072805 | 1717 | } |
a0d0e21e LW |
1718 | MARK++; |
1719 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1720 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1721 | SP += max; |
79072805 | 1722 | } |
a0d0e21e LW |
1723 | else if (count <= 0) |
1724 | SP -= items; | |
79072805 | 1725 | } |
a0d0e21e | 1726 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1727 | SV * const tmpstr = POPs; |
a0d0e21e | 1728 | STRLEN len; |
9b877dbb | 1729 | bool isutf; |
a1894d81 | 1730 | static const char* const oom_string_extend = |
2b573ace | 1731 | "Out of memory during string extend"; |
a0d0e21e | 1732 | |
6f1401dc DM |
1733 | if (TARG != tmpstr) |
1734 | sv_setsv_nomg(TARG, tmpstr); | |
1735 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1736 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1737 | if (count != 1) { |
1738 | if (count < 1) | |
1739 | SvCUR_set(TARG, 0); | |
1740 | else { | |
c445ea15 | 1741 | const STRLEN max = (UV)count * len; |
19a94d75 | 1742 | if (len > MEM_SIZE_MAX / count) |
0157ef98 | 1743 | Perl_croak(aTHX_ "%s", oom_string_extend); |
2b573ace | 1744 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); |
8569b9dc | 1745 | SvGROW(TARG, max + 1); |
a0d0e21e | 1746 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1747 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1748 | } |
a0d0e21e | 1749 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1750 | } |
dfcb284a GS |
1751 | if (isutf) |
1752 | (void)SvPOK_only_UTF8(TARG); | |
1753 | else | |
1754 | (void)SvPOK_only(TARG); | |
b80b6069 RH |
1755 | |
1756 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
1757 | /* The parser saw this as a list repeat, and there | |
1758 | are probably several items on the stack. But we're | |
1759 | in scalar context, and there's no pp_list to save us | |
1760 | now. So drop the rest of the items -- robin@kitsite.com | |
1761 | */ | |
1762 | dMARK; | |
1763 | SP = MARK; | |
1764 | } | |
a0d0e21e | 1765 | PUSHTARG; |
79072805 | 1766 | } |
a0d0e21e LW |
1767 | RETURN; |
1768 | } | |
79072805 | 1769 | |
a0d0e21e LW |
1770 | PP(pp_subtract) |
1771 | { | |
800401ee | 1772 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1773 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1774 | svr = TOPs; | |
1775 | svl = TOPm1s; | |
800401ee | 1776 | useleft = USE_LEFT(svl); |
28e5dec8 | 1777 | #ifdef PERL_PRESERVE_IVUV |
7dca457a NC |
1778 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1779 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1780 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1781 | /* Unless the left argument is integer in range we are going to have to |
1782 | use NV maths. Hence only attempt to coerce the right argument if | |
1783 | we know the left is integer. */ | |
eb578fdb | 1784 | UV auv = 0; |
9c5ffd7c | 1785 | bool auvok = FALSE; |
7dca457a NC |
1786 | bool a_valid = 0; |
1787 | ||
28e5dec8 | 1788 | if (!useleft) { |
7dca457a NC |
1789 | auv = 0; |
1790 | a_valid = auvok = 1; | |
1791 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1792 | } else { |
1793 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1794 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1795 | if ((auvok = SvUOK(svl))) |
1796 | auv = SvUVX(svl); | |
7dca457a | 1797 | else { |
eb578fdb | 1798 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1799 | if (aiv >= 0) { |
1800 | auv = aiv; | |
1801 | auvok = 1; /* Now acting as a sign flag. */ | |
1802 | } else { /* 2s complement assumption for IV_MIN */ | |
1803 | auv = (UV)-aiv; | |
28e5dec8 | 1804 | } |
7dca457a NC |
1805 | } |
1806 | a_valid = 1; | |
1807 | } | |
1808 | } | |
1809 | if (a_valid) { | |
1810 | bool result_good = 0; | |
1811 | UV result; | |
eb578fdb | 1812 | UV buv; |
800401ee | 1813 | bool buvok = SvUOK(svr); |
9041c2e3 | 1814 | |
7dca457a | 1815 | if (buvok) |
800401ee | 1816 | buv = SvUVX(svr); |
7dca457a | 1817 | else { |
eb578fdb | 1818 | const IV biv = SvIVX(svr); |
7dca457a NC |
1819 | if (biv >= 0) { |
1820 | buv = biv; | |
1821 | buvok = 1; | |
1822 | } else | |
1823 | buv = (UV)-biv; | |
1824 | } | |
1825 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1826 | else "IV" now, independent of how it came in. |
7dca457a NC |
1827 | if a, b represents positive, A, B negative, a maps to -A etc |
1828 | a - b => (a - b) | |
1829 | A - b => -(a + b) | |
1830 | a - B => (a + b) | |
1831 | A - B => -(a - b) | |
1832 | all UV maths. negate result if A negative. | |
1833 | subtract if signs same, add if signs differ. */ | |
1834 | ||
1835 | if (auvok ^ buvok) { | |
1836 | /* Signs differ. */ | |
1837 | result = auv + buv; | |
1838 | if (result >= auv) | |
1839 | result_good = 1; | |
1840 | } else { | |
1841 | /* Signs same */ | |
1842 | if (auv >= buv) { | |
1843 | result = auv - buv; | |
1844 | /* Must get smaller */ | |
1845 | if (result <= auv) | |
1846 | result_good = 1; | |
1847 | } else { | |
1848 | result = buv - auv; | |
1849 | if (result <= buv) { | |
1850 | /* result really should be -(auv-buv). as its negation | |
1851 | of true value, need to swap our result flag */ | |
1852 | auvok = !auvok; | |
1853 | result_good = 1; | |
28e5dec8 | 1854 | } |
28e5dec8 JH |
1855 | } |
1856 | } | |
7dca457a NC |
1857 | if (result_good) { |
1858 | SP--; | |
1859 | if (auvok) | |
1860 | SETu( result ); | |
1861 | else { | |
1862 | /* Negate result */ | |
1863 | if (result <= (UV)IV_MIN) | |
1864 | SETi( -(IV)result ); | |
1865 | else { | |
1866 | /* result valid, but out of range for IV. */ | |
1867 | SETn( -(NV)result ); | |
1868 | } | |
1869 | } | |
1870 | RETURN; | |
1871 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1872 | } |
1873 | } | |
1874 | #endif | |
a0d0e21e | 1875 | { |
6f1401dc | 1876 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1877 | (void)POPs; |
1878 | ||
28e5dec8 JH |
1879 | if (!useleft) { |
1880 | /* left operand is undef, treat as zero - value */ | |
1881 | SETn(-value); | |
1882 | RETURN; | |
1883 | } | |
6f1401dc | 1884 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1885 | RETURN; |
79072805 | 1886 | } |
a0d0e21e | 1887 | } |
79072805 | 1888 | |
a0d0e21e LW |
1889 | PP(pp_left_shift) |
1890 | { | |
6f1401dc | 1891 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1892 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1893 | svr = POPs; |
1894 | svl = TOPs; | |
a0d0e21e | 1895 | { |
6f1401dc | 1896 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1897 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1898 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1899 | SETi(i << shift); |
d0ba1bd2 JH |
1900 | } |
1901 | else { | |
6f1401dc | 1902 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1903 | SETu(u << shift); |
d0ba1bd2 | 1904 | } |
55497cff | 1905 | RETURN; |
79072805 | 1906 | } |
a0d0e21e | 1907 | } |
79072805 | 1908 | |
a0d0e21e LW |
1909 | PP(pp_right_shift) |
1910 | { | |
6f1401dc | 1911 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1912 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1913 | svr = POPs; |
1914 | svl = TOPs; | |
a0d0e21e | 1915 | { |
6f1401dc | 1916 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1917 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1918 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1919 | SETi(i >> shift); |
d0ba1bd2 JH |
1920 | } |
1921 | else { | |
6f1401dc | 1922 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1923 | SETu(u >> shift); |
d0ba1bd2 | 1924 | } |
a0d0e21e | 1925 | RETURN; |
93a17b20 | 1926 | } |
79072805 LW |
1927 | } |
1928 | ||
a0d0e21e | 1929 | PP(pp_lt) |
79072805 | 1930 | { |
6f1401dc | 1931 | dVAR; dSP; |
33efebe6 DM |
1932 | SV *left, *right; |
1933 | ||
a42d0242 | 1934 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
1935 | right = POPs; |
1936 | left = TOPs; | |
1937 | SETs(boolSV( | |
1938 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1939 | ? (SvIVX(left) < SvIVX(right)) | |
1940 | : (do_ncmp(left, right) == -1) | |
1941 | )); | |
1942 | RETURN; | |
a0d0e21e | 1943 | } |
79072805 | 1944 | |
a0d0e21e LW |
1945 | PP(pp_gt) |
1946 | { | |
6f1401dc | 1947 | dVAR; dSP; |
33efebe6 | 1948 | SV *left, *right; |
1b6737cc | 1949 | |
33efebe6 DM |
1950 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
1951 | right = POPs; | |
1952 | left = TOPs; | |
1953 | SETs(boolSV( | |
1954 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1955 | ? (SvIVX(left) > SvIVX(right)) | |
1956 | : (do_ncmp(left, right) == 1) | |
1957 | )); | |
1958 | RETURN; | |
a0d0e21e LW |
1959 | } |
1960 | ||
1961 | PP(pp_le) | |
1962 | { | |
6f1401dc | 1963 | dVAR; dSP; |
33efebe6 | 1964 | SV *left, *right; |
1b6737cc | 1965 | |
33efebe6 DM |
1966 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
1967 | right = POPs; | |
1968 | left = TOPs; | |
1969 | SETs(boolSV( | |
1970 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1971 | ? (SvIVX(left) <= SvIVX(right)) | |
1972 | : (do_ncmp(left, right) <= 0) | |
1973 | )); | |
1974 | RETURN; | |
a0d0e21e LW |
1975 | } |
1976 | ||
1977 | PP(pp_ge) | |
1978 | { | |
6f1401dc | 1979 | dVAR; dSP; |
33efebe6 DM |
1980 | SV *left, *right; |
1981 | ||
1982 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
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) & 2) == 0) | |
1989 | )); | |
1990 | RETURN; | |
1991 | } | |
1b6737cc | 1992 | |
33efebe6 DM |
1993 | PP(pp_ne) |
1994 | { | |
1995 | dVAR; dSP; | |
1996 | SV *left, *right; | |
1997 | ||
1998 | tryAMAGICbin_MG(ne_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) != 0) | |
2005 | )); | |
2006 | RETURN; | |
2007 | } | |
1b6737cc | 2008 | |
33efebe6 DM |
2009 | /* compare left and right SVs. Returns: |
2010 | * -1: < | |
2011 | * 0: == | |
2012 | * 1: > | |
2013 | * 2: left or right was a NaN | |
2014 | */ | |
2015 | I32 | |
2016 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2017 | { | |
2018 | dVAR; | |
1b6737cc | 2019 | |
33efebe6 DM |
2020 | PERL_ARGS_ASSERT_DO_NCMP; |
2021 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2022 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2023 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2024 | if (!SvUOK(left)) { |
2025 | const IV leftiv = SvIVX(left); | |
2026 | if (!SvUOK(right)) { | |
2027 | /* ## IV <=> IV ## */ | |
2028 | const IV rightiv = SvIVX(right); | |
2029 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2030 | } |
33efebe6 DM |
2031 | /* ## IV <=> UV ## */ |
2032 | if (leftiv < 0) | |
2033 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2034 | return -1; | |
2035 | { | |
2036 | const UV rightuv = SvUVX(right); | |
2037 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2038 | } |
28e5dec8 | 2039 | } |
79072805 | 2040 | |
33efebe6 DM |
2041 | if (SvUOK(right)) { |
2042 | /* ## UV <=> UV ## */ | |
2043 | const UV leftuv = SvUVX(left); | |
2044 | const UV rightuv = SvUVX(right); | |
2045 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2046 | } |
33efebe6 DM |
2047 | /* ## UV <=> IV ## */ |
2048 | { | |
2049 | const IV rightiv = SvIVX(right); | |
2050 | if (rightiv < 0) | |
2051 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2052 | return 1; | |
2053 | { | |
2054 | const UV leftuv = SvUVX(left); | |
2055 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2056 | } |
28e5dec8 | 2057 | } |
118e2215 | 2058 | assert(0); /* NOTREACHED */ |
28e5dec8 JH |
2059 | } |
2060 | #endif | |
a0d0e21e | 2061 | { |
33efebe6 DM |
2062 | NV const rnv = SvNV_nomg(right); |
2063 | NV const lnv = SvNV_nomg(left); | |
2064 | ||
cab190d4 | 2065 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2066 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2067 | return 2; | |
2068 | } | |
2069 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2070 | #else |
33efebe6 DM |
2071 | if (lnv < rnv) |
2072 | return -1; | |
2073 | if (lnv > rnv) | |
2074 | return 1; | |
659c4b96 | 2075 | if (lnv == rnv) |
33efebe6 DM |
2076 | return 0; |
2077 | return 2; | |
cab190d4 | 2078 | #endif |
a0d0e21e | 2079 | } |
79072805 LW |
2080 | } |
2081 | ||
33efebe6 | 2082 | |
a0d0e21e | 2083 | PP(pp_ncmp) |
79072805 | 2084 | { |
33efebe6 DM |
2085 | dVAR; dSP; |
2086 | SV *left, *right; | |
2087 | I32 value; | |
a42d0242 | 2088 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2089 | right = POPs; |
2090 | left = TOPs; | |
2091 | value = do_ncmp(left, right); | |
2092 | if (value == 2) { | |
3280af22 | 2093 | SETs(&PL_sv_undef); |
79072805 | 2094 | } |
33efebe6 DM |
2095 | else { |
2096 | dTARGET; | |
2097 | SETi(value); | |
2098 | } | |
2099 | RETURN; | |
a0d0e21e | 2100 | } |
79072805 | 2101 | |
afd9910b | 2102 | PP(pp_sle) |
a0d0e21e | 2103 | { |
97aff369 | 2104 | dVAR; dSP; |
79072805 | 2105 | |
afd9910b NC |
2106 | int amg_type = sle_amg; |
2107 | int multiplier = 1; | |
2108 | int rhs = 1; | |
79072805 | 2109 | |
afd9910b NC |
2110 | switch (PL_op->op_type) { |
2111 | case OP_SLT: | |
2112 | amg_type = slt_amg; | |
2113 | /* cmp < 0 */ | |
2114 | rhs = 0; | |
2115 | break; | |
2116 | case OP_SGT: | |
2117 | amg_type = sgt_amg; | |
2118 | /* cmp > 0 */ | |
2119 | multiplier = -1; | |
2120 | rhs = 0; | |
2121 | break; | |
2122 | case OP_SGE: | |
2123 | amg_type = sge_amg; | |
2124 | /* cmp >= 0 */ | |
2125 | multiplier = -1; | |
2126 | break; | |
79072805 | 2127 | } |
79072805 | 2128 | |
6f1401dc | 2129 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2130 | { |
2131 | dPOPTOPssrl; | |
1b6737cc | 2132 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2133 | ? sv_cmp_locale_flags(left, right, 0) |
2134 | : sv_cmp_flags(left, right, 0)); | |
afd9910b | 2135 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2136 | RETURN; |
2137 | } | |
2138 | } | |
79072805 | 2139 | |
36477c24 | 2140 | PP(pp_seq) |
2141 | { | |
6f1401dc DM |
2142 | dVAR; dSP; |
2143 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
36477c24 | 2144 | { |
2145 | dPOPTOPssrl; | |
078504b2 | 2146 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2147 | RETURN; |
2148 | } | |
2149 | } | |
79072805 | 2150 | |
a0d0e21e | 2151 | PP(pp_sne) |
79072805 | 2152 | { |
6f1401dc DM |
2153 | dVAR; dSP; |
2154 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
a0d0e21e LW |
2155 | { |
2156 | dPOPTOPssrl; | |
078504b2 | 2157 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2158 | RETURN; |
463ee0b2 | 2159 | } |
79072805 LW |
2160 | } |
2161 | ||
a0d0e21e | 2162 | PP(pp_scmp) |
79072805 | 2163 | { |
6f1401dc DM |
2164 | dVAR; dSP; dTARGET; |
2165 | tryAMAGICbin_MG(scmp_amg, 0); | |
a0d0e21e LW |
2166 | { |
2167 | dPOPTOPssrl; | |
1b6737cc | 2168 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2169 | ? sv_cmp_locale_flags(left, right, 0) |
2170 | : sv_cmp_flags(left, right, 0)); | |
bbce6d69 | 2171 | SETi( cmp ); |
a0d0e21e LW |
2172 | RETURN; |
2173 | } | |
2174 | } | |
79072805 | 2175 | |
55497cff | 2176 | PP(pp_bit_and) |
2177 | { | |
6f1401dc DM |
2178 | dVAR; dSP; dATARGET; |
2179 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
a0d0e21e LW |
2180 | { |
2181 | dPOPTOPssrl; | |
4633a7c4 | 2182 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2183 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2184 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2185 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2186 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2187 | SETi(i); |
d0ba1bd2 JH |
2188 | } |
2189 | else { | |
1b6737cc | 2190 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2191 | SETu(u); |
d0ba1bd2 | 2192 | } |
5ee80e13 | 2193 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2194 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2195 | } |
2196 | else { | |
533c011a | 2197 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2198 | SETTARG; |
2199 | } | |
2200 | RETURN; | |
2201 | } | |
2202 | } | |
79072805 | 2203 | |
a0d0e21e LW |
2204 | PP(pp_bit_or) |
2205 | { | |
3658c1f1 NC |
2206 | dVAR; dSP; dATARGET; |
2207 | const int op_type = PL_op->op_type; | |
2208 | ||
6f1401dc | 2209 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2210 | { |
2211 | dPOPTOPssrl; | |
4633a7c4 | 2212 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2213 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2214 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2215 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2216 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2217 | const IV r = SvIV_nomg(right); | |
2218 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2219 | SETi(result); | |
d0ba1bd2 JH |
2220 | } |
2221 | else { | |
3658c1f1 NC |
2222 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2223 | const UV r = SvUV_nomg(right); | |
2224 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2225 | SETu(result); | |
d0ba1bd2 | 2226 | } |
5ee80e13 | 2227 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2228 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2229 | } |
2230 | else { | |
3658c1f1 | 2231 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2232 | SETTARG; |
2233 | } | |
2234 | RETURN; | |
79072805 | 2235 | } |
a0d0e21e | 2236 | } |
79072805 | 2237 | |
1c2b3fd6 FC |
2238 | PERL_STATIC_INLINE bool |
2239 | S_negate_string(pTHX) | |
2240 | { | |
2241 | dTARGET; dSP; | |
2242 | STRLEN len; | |
2243 | const char *s; | |
2244 | SV * const sv = TOPs; | |
2245 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2246 | return FALSE; | |
2247 | s = SvPV_nomg_const(sv, len); | |
2248 | if (isIDFIRST(*s)) { | |
2249 | sv_setpvs(TARG, "-"); | |
2250 | sv_catsv(TARG, sv); | |
2251 | } | |
2252 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2253 | sv_setsv_nomg(TARG, sv); | |
2254 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2255 | } | |
2256 | else return FALSE; | |
2257 | SETTARG; PUTBACK; | |
2258 | return TRUE; | |
2259 | } | |
2260 | ||
a0d0e21e LW |
2261 | PP(pp_negate) |
2262 | { | |
6f1401dc DM |
2263 | dVAR; dSP; dTARGET; |
2264 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
1c2b3fd6 | 2265 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2266 | { |
6f1401dc | 2267 | SV * const sv = TOPs; |
a5b92898 | 2268 | |
d96ab1b5 | 2269 | if (SvIOK(sv)) { |
7dbe3150 | 2270 | /* It's publicly an integer */ |
28e5dec8 | 2271 | oops_its_an_int: |
9b0e499b GS |
2272 | if (SvIsUV(sv)) { |
2273 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2274 | /* 2s complement assumption. */ |
d14578b8 KW |
2275 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2276 | IV_MIN */ | |
9b0e499b GS |
2277 | RETURN; |
2278 | } | |
2279 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2280 | SETi(-SvIVX(sv)); |
9b0e499b GS |
2281 | RETURN; |
2282 | } | |
2283 | } | |
2284 | else if (SvIVX(sv) != IV_MIN) { | |
2285 | SETi(-SvIVX(sv)); | |
2286 | RETURN; | |
2287 | } | |
28e5dec8 JH |
2288 | #ifdef PERL_PRESERVE_IVUV |
2289 | else { | |
2290 | SETu((UV)IV_MIN); | |
2291 | RETURN; | |
2292 | } | |
2293 | #endif | |
9b0e499b | 2294 | } |
8a5decd8 | 2295 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2296 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2297 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2298 | goto oops_its_an_int; |
4633a7c4 | 2299 | else |
6f1401dc | 2300 | SETn(-SvNV_nomg(sv)); |
79072805 | 2301 | } |
a0d0e21e | 2302 | RETURN; |
79072805 LW |
2303 | } |
2304 | ||
a0d0e21e | 2305 | PP(pp_not) |
79072805 | 2306 | { |
6f1401dc DM |
2307 | dVAR; dSP; |
2308 | tryAMAGICun_MG(not_amg, AMGf_set); | |
06c841cf | 2309 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
a0d0e21e | 2310 | return NORMAL; |
79072805 LW |
2311 | } |
2312 | ||
a0d0e21e | 2313 | PP(pp_complement) |
79072805 | 2314 | { |
6f1401dc | 2315 | dVAR; dSP; dTARGET; |
a42d0242 | 2316 | tryAMAGICun_MG(compl_amg, AMGf_numeric); |
a0d0e21e LW |
2317 | { |
2318 | dTOPss; | |
4633a7c4 | 2319 | if (SvNIOKp(sv)) { |
d0ba1bd2 | 2320 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2321 | const IV i = ~SvIV_nomg(sv); |
972b05a9 | 2322 | SETi(i); |
d0ba1bd2 JH |
2323 | } |
2324 | else { | |
1b6737cc | 2325 | const UV u = ~SvUV_nomg(sv); |
972b05a9 | 2326 | SETu(u); |
d0ba1bd2 | 2327 | } |
a0d0e21e LW |
2328 | } |
2329 | else { | |
eb578fdb KW |
2330 | U8 *tmps; |
2331 | I32 anum; | |
a0d0e21e LW |
2332 | STRLEN len; |
2333 | ||
85b0ee6e FC |
2334 | sv_copypv_nomg(TARG, sv); |
2335 | tmps = (U8*)SvPV_nomg(TARG, len); | |
a0d0e21e | 2336 | anum = len; |
1d68d6cd | 2337 | if (SvUTF8(TARG)) { |
a1ca4561 | 2338 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd | 2339 | STRLEN targlen = 0; |
ba210ebe | 2340 | STRLEN l; |
a1ca4561 YST |
2341 | UV nchar = 0; |
2342 | UV nwide = 0; | |
01f6e806 | 2343 | U8 * const send = tmps + len; |
74d49cd0 TS |
2344 | U8 * const origtmps = tmps; |
2345 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
1d68d6cd | 2346 | |
1d68d6cd | 2347 | while (tmps < send) { |
74d49cd0 TS |
2348 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2349 | tmps += l; | |
5bbb0b5a | 2350 | targlen += UNISKIP(~c); |
a1ca4561 YST |
2351 | nchar++; |
2352 | if (c > 0xff) | |
2353 | nwide++; | |
1d68d6cd SC |
2354 | } |
2355 | ||
2356 | /* Now rewind strings and write them. */ | |
74d49cd0 | 2357 | tmps = origtmps; |
a1ca4561 YST |
2358 | |
2359 | if (nwide) { | |
01f6e806 AL |
2360 | U8 *result; |
2361 | U8 *p; | |
2362 | ||
74d49cd0 | 2363 | Newx(result, targlen + 1, U8); |
01f6e806 | 2364 | p = result; |
a1ca4561 | 2365 | while (tmps < send) { |
74d49cd0 TS |
2366 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2367 | tmps += l; | |
01f6e806 | 2368 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 | 2369 | } |
01f6e806 | 2370 | *p = '\0'; |
c1c21316 NC |
2371 | sv_usepvn_flags(TARG, (char*)result, targlen, |
2372 | SV_HAS_TRAILING_NUL); | |
a1ca4561 YST |
2373 | SvUTF8_on(TARG); |
2374 | } | |
2375 | else { | |
01f6e806 AL |
2376 | U8 *result; |
2377 | U8 *p; | |
2378 | ||
74d49cd0 | 2379 | Newx(result, nchar + 1, U8); |
01f6e806 | 2380 | p = result; |
a1ca4561 | 2381 | while (tmps < send) { |
74d49cd0 TS |
2382 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2383 | tmps += l; | |
01f6e806 | 2384 | *p++ = ~c; |
a1ca4561 | 2385 | } |
01f6e806 | 2386 | *p = '\0'; |
c1c21316 | 2387 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
d0a21e00 | 2388 | SvUTF8_off(TARG); |
1d68d6cd | 2389 | } |
ec93b65f | 2390 | SETTARG; |
1d68d6cd SC |
2391 | RETURN; |
2392 | } | |
a0d0e21e | 2393 | #ifdef LIBERAL |
51723571 | 2394 | { |
eb578fdb | 2395 | long *tmpl; |
51723571 JH |
2396 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2397 | *tmps = ~*tmps; | |
2398 | tmpl = (long*)tmps; | |
bb7a0f54 | 2399 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2400 | *tmpl = ~*tmpl; |
2401 | tmps = (U8*)tmpl; | |
2402 | } | |
a0d0e21e LW |
2403 | #endif |
2404 | for ( ; anum > 0; anum--, tmps++) | |
2405 | *tmps = ~*tmps; | |
ec93b65f | 2406 | SETTARG; |
a0d0e21e LW |
2407 | } |
2408 | RETURN; | |
2409 | } | |
79072805 LW |
2410 | } |
2411 | ||
a0d0e21e LW |
2412 | /* integer versions of some of the above */ |
2413 | ||
a0d0e21e | 2414 | PP(pp_i_multiply) |
79072805 | 2415 | { |
6f1401dc DM |
2416 | dVAR; dSP; dATARGET; |
2417 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
a0d0e21e | 2418 | { |
6f1401dc | 2419 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2420 | SETi( left * right ); |
2421 | RETURN; | |
2422 | } | |
79072805 LW |
2423 | } |
2424 | ||
a0d0e21e | 2425 | PP(pp_i_divide) |
79072805 | 2426 | { |
85935d8e | 2427 | IV num; |
6f1401dc DM |
2428 | dVAR; dSP; dATARGET; |
2429 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
a0d0e21e | 2430 | { |
6f1401dc | 2431 | dPOPTOPssrl; |
85935d8e | 2432 | IV value = SvIV_nomg(right); |
a0d0e21e | 2433 | if (value == 0) |
ece1bcef | 2434 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2435 | num = SvIV_nomg(left); |
a0cec769 YST |
2436 | |
2437 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2438 | if (value == -1) | |
2439 | value = - num; | |
2440 | else | |
2441 | value = num / value; | |
6f1401dc | 2442 | SETi(value); |
a0d0e21e LW |
2443 | RETURN; |
2444 | } | |
79072805 LW |
2445 | } |
2446 | ||
a5bd31f4 | 2447 | #if defined(__GLIBC__) && IVSIZE == 8 && !defined(PERL_DEBUG_READONLY_OPS) |
224ec323 JH |
2448 | STATIC |
2449 | PP(pp_i_modulo_0) | |
befad5d1 NC |
2450 | #else |
2451 | PP(pp_i_modulo) | |
2452 | #endif | |
224ec323 JH |
2453 | { |
2454 | /* This is the vanilla old i_modulo. */ | |
6f1401dc DM |
2455 | dVAR; dSP; dATARGET; |
2456 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2457 | { |
6f1401dc | 2458 | dPOPTOPiirl_nomg; |
224ec323 JH |
2459 | if (!right) |
2460 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2461 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2462 | if (right == -1) | |
2463 | SETi( 0 ); | |
2464 | else | |
2465 | SETi( left % right ); | |
224ec323 JH |
2466 | RETURN; |
2467 | } | |
2468 | } | |
2469 | ||
a5bd31f4 | 2470 | #if defined(__GLIBC__) && IVSIZE == 8 && !defined(PERL_DEBUG_READONLY_OPS) |
224ec323 JH |
2471 | STATIC |
2472 | PP(pp_i_modulo_1) | |
befad5d1 | 2473 | |
224ec323 | 2474 | { |
224ec323 | 2475 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2476 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2477 | * See below for pp_i_modulo. */ |
6f1401dc DM |
2478 | dVAR; dSP; dATARGET; |
2479 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2480 | { |
6f1401dc | 2481 | dPOPTOPiirl_nomg; |
224ec323 JH |
2482 | if (!right) |
2483 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2484 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2485 | if (right == -1) | |
2486 | SETi( 0 ); | |
2487 | else | |
2488 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2489 | RETURN; |
2490 | } | |
224ec323 JH |
2491 | } |
2492 | ||
a0d0e21e | 2493 | PP(pp_i_modulo) |
79072805 | 2494 | { |
6f1401dc DM |
2495 | dVAR; dSP; dATARGET; |
2496 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2497 | { |
6f1401dc | 2498 | dPOPTOPiirl_nomg; |
224ec323 JH |
2499 | if (!right) |
2500 | DIE(aTHX_ "Illegal modulus zero"); | |
2501 | /* The assumption is to use hereafter the old vanilla version... */ | |
2502 | PL_op->op_ppaddr = | |
2503 | PL_ppaddr[OP_I_MODULO] = | |
1c127fab | 2504 | Perl_pp_i_modulo_0; |
224ec323 JH |
2505 | /* .. but if we have glibc, we might have a buggy _moddi3 |
2506 | * (at least glicb 2.2.5 is known to have this bug), in other | |
2507 | * words our integer modulus with negative quad as the second | |
2508 | * argument might be broken. Test for this and re-patch the | |
2509 | * opcode dispatch table if that is the case, remembering to | |
2510 | * also apply the workaround so that this first round works | |
2511 | * right, too. See [perl #9402] for more information. */ | |
224ec323 JH |
2512 | { |
2513 | IV l = 3; | |
2514 | IV r = -10; | |
2515 | /* Cannot do this check with inlined IV constants since | |
2516 | * that seems to work correctly even with the buggy glibc. */ | |
2517 | if (l % r == -3) { | |
2518 | /* Yikes, we have the bug. | |
2519 | * Patch in the workaround version. */ | |
2520 | PL_op->op_ppaddr = | |
2521 | PL_ppaddr[OP_I_MODULO] = | |
2522 | &Perl_pp_i_modulo_1; | |
2523 | /* Make certain we work right this time, too. */ | |
32fdb065 | 2524 | right = PERL_ABS(right); |
224ec323 JH |
2525 | } |
2526 | } | |
a0cec769 YST |
2527 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2528 | if (right == -1) | |
2529 | SETi( 0 ); | |
2530 | else | |
2531 | SETi( left % right ); | |
224ec323 JH |
2532 | RETURN; |
2533 | } | |
79072805 | 2534 | } |
befad5d1 | 2535 | #endif |
79072805 | 2536 | |
a0d0e21e | 2537 | PP(pp_i_add) |
79072805 | 2538 | { |
6f1401dc DM |
2539 | dVAR; dSP; dATARGET; |
2540 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
a0d0e21e | 2541 | { |
6f1401dc | 2542 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2543 | SETi( left + right ); |
2544 | RETURN; | |
79072805 | 2545 | } |
79072805 LW |
2546 | } |
2547 | ||
a0d0e21e | 2548 | PP(pp_i_subtract) |
79072805 | 2549 | { |
6f1401dc DM |
2550 | dVAR; dSP; dATARGET; |
2551 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
a0d0e21e | 2552 | { |
6f1401dc | 2553 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2554 | SETi( left - right ); |
2555 | RETURN; | |
79072805 | 2556 | } |
79072805 LW |
2557 | } |
2558 | ||
a0d0e21e | 2559 | PP(pp_i_lt) |
79072805 | 2560 | { |
6f1401dc DM |
2561 | dVAR; dSP; |
2562 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
a0d0e21e | 2563 | { |
96b6b87f | 2564 | dPOPTOPiirl_nomg; |
54310121 | 2565 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2566 | RETURN; |
2567 | } | |
79072805 LW |
2568 | } |
2569 | ||
a0d0e21e | 2570 | PP(pp_i_gt) |
79072805 | 2571 | { |
6f1401dc DM |
2572 | dVAR; dSP; |
2573 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
a0d0e21e | 2574 | { |
96b6b87f | 2575 | dPOPTOPiirl_nomg; |
54310121 | 2576 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2577 | RETURN; |
2578 | } | |
79072805 LW |
2579 | } |
2580 | ||
a0d0e21e | 2581 | PP(pp_i_le) |
79072805 | 2582 | { |
6f1401dc DM |
2583 | dVAR; dSP; |
2584 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
a0d0e21e | 2585 | { |
96b6b87f | 2586 | dPOPTOPiirl_nomg; |
54310121 | 2587 | SETs(boolSV(left <= right)); |
a0d0e21e | 2588 | RETURN; |
85e6fe83 | 2589 | } |
79072805 LW |
2590 | } |
2591 | ||
a0d0e21e | 2592 | PP(pp_i_ge) |
79072805 | 2593 | { |
6f1401dc DM |
2594 | dVAR; dSP; |
2595 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
a0d0e21e | 2596 | { |
96b6b87f | 2597 | dPOPTOPiirl_nomg; |
54310121 | 2598 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2599 | RETURN; |
2600 | } | |
79072805 LW |
2601 | } |
2602 | ||
a0d0e21e | 2603 | PP(pp_i_eq) |
79072805 | 2604 | { |
6f1401dc DM |
2605 | dVAR; dSP; |
2606 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
a0d0e21e | 2607 | { |
96b6b87f | 2608 | dPOPTOPiirl_nomg; |
54310121 | 2609 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2610 | RETURN; |
2611 | } | |
79072805 LW |
2612 | } |
2613 | ||
a0d0e21e | 2614 | PP(pp_i_ne) |
79072805 | 2615 | { |
6f1401dc DM |
2616 | dVAR; dSP; |
2617 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
a0d0e21e | 2618 | { |
96b6b87f | 2619 | dPOPTOPiirl_nomg; |
54310121 | 2620 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2621 | RETURN; |
2622 | } | |
79072805 LW |
2623 | } |
2624 | ||
a0d0e21e | 2625 | PP(pp_i_ncmp) |
79072805 | 2626 | { |
6f1401dc DM |
2627 | dVAR; dSP; dTARGET; |
2628 | tryAMAGICbin_MG(ncmp_amg, 0); | |
a0d0e21e | 2629 | { |
96b6b87f | 2630 | dPOPTOPiirl_nomg; |
a0d0e21e | 2631 | I32 value; |
79072805 | 2632 | |
a0d0e21e | 2633 | if (left > right) |
79072805 | 2634 | value = 1; |
a0d0e21e | 2635 | else if (left < right) |
79072805 | 2636 | value = -1; |
a0d0e21e | 2637 | else |
79072805 | 2638 | value = 0; |
a0d0e21e LW |
2639 | SETi(value); |
2640 | RETURN; | |
79072805 | 2641 | } |
85e6fe83 LW |
2642 | } |
2643 | ||
2644 | PP(pp_i_negate) | |
2645 | { | |
6f1401dc DM |
2646 | dVAR; dSP; dTARGET; |
2647 | tryAMAGICun_MG(neg_amg, 0); | |
1c2b3fd6 | 2648 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2649 | { |
2650 | SV * const sv = TOPs; | |
2651 | IV const i = SvIV_nomg(sv); | |
2652 | SETi(-i); | |
2653 | RETURN; | |
2654 | } | |
85e6fe83 LW |
2655 | } |
2656 | ||
79072805 LW |
2657 | /* High falutin' math. */ |
2658 | ||
2659 | PP(pp_atan2) | |
2660 | { | |
6f1401dc DM |
2661 | dVAR; dSP; dTARGET; |
2662 | tryAMAGICbin_MG(atan2_amg, 0); | |
a0d0e21e | 2663 | { |
096c060c | 2664 | dPOPTOPnnrl_nomg; |
a1021d57 | 2665 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2666 | RETURN; |
2667 | } | |
79072805 LW |
2668 | } |
2669 | ||
2670 | PP(pp_sin) | |
2671 | { | |
71302fe3 NC |
2672 | dVAR; dSP; dTARGET; |
2673 | int amg_type = sin_amg; | |
2674 | const char *neg_report = NULL; | |
bc81784a | 2675 | NV (*func)(NV) = Perl_sin; |
71302fe3 NC |
2676 | const int op_type = PL_op->op_type; |
2677 | ||
2678 | switch (op_type) { | |
2679 | case OP_COS: | |
2680 | amg_type = cos_amg; | |
bc81784a | 2681 | func = Perl_cos; |
71302fe3 NC |
2682 | break; |
2683 | case OP_EXP: | |
2684 | amg_type = exp_amg; | |
bc81784a | 2685 | func = Perl_exp; |
71302fe3 NC |
2686 | break; |
2687 | case OP_LOG: | |
2688 | amg_type = log_amg; | |
bc81784a | 2689 | func = Perl_log; |
71302fe3 NC |
2690 | neg_report = "log"; |
2691 | break; | |
2692 | case OP_SQRT: | |
2693 | amg_type = sqrt_amg; | |
bc81784a | 2694 | func = Perl_sqrt; |
71302fe3 NC |
2695 | neg_report = "sqrt"; |
2696 | break; | |
a0d0e21e | 2697 | } |
79072805 | 2698 | |
6f1401dc DM |
2699 | |
2700 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2701 | { |
6f1401dc DM |
2702 | SV * const arg = POPs; |
2703 | const NV value = SvNV_nomg(arg); | |
71302fe3 NC |
2704 | if (neg_report) { |
2705 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
2706 | SET_NUMERIC_STANDARD(); | |
dcbac5bb | 2707 | /* diag_listed_as: Can't take log of %g */ |
71302fe3 NC |
2708 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); |
2709 | } | |
2710 | } | |
2711 | XPUSHn(func(value)); | |
a0d0e21e LW |
2712 | RETURN; |
2713 | } | |
79072805 LW |
2714 | } |
2715 | ||
56cb0a1c AD |
2716 | /* Support Configure command-line overrides for rand() functions. |
2717 | After 5.005, perhaps we should replace this by Configure support | |
2718 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2719 | compatibility by calling rand() but allow the user to override it. | |
2720 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2721 | */ | |
85ab1d1d JH |
2722 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2723 | in addition to rand(). So the overrides should not be needed any more. | |
2724 | --Jarkko Hietaniemi 27 September 1998 | |
2725 | */ | |
2726 | ||
79072805 LW |
2727 | PP(pp_rand) |
2728 | { | |
fdf4dddd | 2729 | dVAR; |
80252599 | 2730 | if (!PL_srand_called) { |
85ab1d1d | 2731 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2732 | PL_srand_called = TRUE; |
93dc8474 | 2733 | } |
fdf4dddd DD |
2734 | { |
2735 | dSP; | |
2736 | NV value; | |
2737 | EXTEND(SP, 1); | |
2738 | ||
2739 | if (MAXARG < 1) | |
2740 | value = 1.0; | |
2741 | else { | |
2742 | SV * const sv = POPs; | |
2743 | if(!sv) | |
2744 | value = 1.0; | |
2745 | else | |
2746 | value = SvNV(sv); | |
2747 | } | |
2748 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
659c4b96 | 2749 | if (value == 0.0) |
fdf4dddd DD |
2750 | value = 1.0; |
2751 | { | |
2752 | dTARGET; | |
2753 | PUSHs(TARG); | |
2754 | PUTBACK; | |
2755 | value *= Drand01(); | |
2756 | sv_setnv_mg(TARG, value); | |
2757 | } | |
2758 | } | |
2759 | return NORMAL; | |
79072805 LW |
2760 | } |
2761 | ||
2762 | PP(pp_srand) | |
2763 | { | |
83832992 | 2764 | dVAR; dSP; dTARGET; |
f914a682 JL |
2765 | UV anum; |
2766 | ||
0a5f3363 | 2767 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
2768 | SV *top; |
2769 | char *pv; | |
2770 | STRLEN len; | |
2771 | int flags; | |
2772 | ||
2773 | top = POPs; | |
2774 | pv = SvPV(top, len); | |
2775 | flags = grok_number(pv, len, &anum); | |
2776 | ||
2777 | if (!(flags & IS_NUMBER_IN_UV)) { | |
2778 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
2779 | "Integer overflow in srand"); | |
2780 | anum = UV_MAX; | |
2781 | } | |
2782 | } | |
2783 | else { | |
2784 | anum = seed(); | |
2785 | } | |
2786 | ||
85ab1d1d | 2787 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2788 | PL_srand_called = TRUE; |
da1010ec NC |
2789 | if (anum) |
2790 | XPUSHu(anum); | |
2791 | else { | |
2792 | /* Historically srand always returned true. We can avoid breaking | |
2793 | that like this: */ | |
2794 | sv_setpvs(TARG, "0 but true"); | |
2795 | XPUSHTARG; | |
2796 | } | |
83832992 | 2797 | RETURN; |
79072805 LW |
2798 | } |
2799 | ||
79072805 LW |
2800 | PP(pp_int) |
2801 | { | |
6f1401dc DM |
2802 | dVAR; dSP; dTARGET; |
2803 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
774d564b | 2804 | { |
6f1401dc DM |
2805 | SV * const sv = TOPs; |
2806 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2807 | /* XXX it's arguable that compiler casting to IV might be subtly |
2808 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2809 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2810 | relying on floating point to be accurate is a bug. */ | |
2811 | ||
c781a409 | 2812 | if (!SvOK(sv)) { |
922c4365 | 2813 | SETu(0); |
c781a409 RD |
2814 | } |
2815 | else if (SvIOK(sv)) { | |
2816 | if (SvIsUV(sv)) | |
6f1401dc | 2817 | SETu(SvUV_nomg(sv)); |
c781a409 | 2818 | else |
28e5dec8 | 2819 | SETi(iv); |
c781a409 | 2820 | } |
c781a409 | 2821 | else { |
6f1401dc | 2822 | const NV value = SvNV_nomg(sv); |
1048ea30 | 2823 | if (value >= 0.0) { |
28e5dec8 JH |
2824 | if (value < (NV)UV_MAX + 0.5) { |
2825 | SETu(U_V(value)); | |
2826 | } else { | |
059a1014 | 2827 | SETn(Perl_floor(value)); |
28e5dec8 | 2828 | } |
1048ea30 | 2829 | } |
28e5dec8 JH |
2830 | else { |
2831 | if (value > (NV)IV_MIN - 0.5) { | |
2832 | SETi(I_V(value)); | |
2833 | } else { | |
1bbae031 | 2834 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
2835 | } |
2836 | } | |
774d564b | 2837 | } |
79072805 | 2838 | } |
79072805 LW |
2839 | RETURN; |
2840 | } | |
2841 | ||
463ee0b2 LW |
2842 | PP(pp_abs) |
2843 | { | |
6f1401dc DM |
2844 | dVAR; dSP; dTARGET; |
2845 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
a0d0e21e | 2846 | { |
6f1401dc | 2847 | SV * const sv = TOPs; |
28e5dec8 | 2848 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 2849 | const IV iv = SvIV_nomg(sv); |
a227d84d | 2850 | |
800401ee | 2851 | if (!SvOK(sv)) { |
922c4365 | 2852 | SETu(0); |
800401ee JH |
2853 | } |
2854 | else if (SvIOK(sv)) { | |
28e5dec8 | 2855 | /* IVX is precise */ |
800401ee | 2856 | if (SvIsUV(sv)) { |
6f1401dc | 2857 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
2858 | } else { |
2859 | if (iv >= 0) { | |
2860 | SETi(iv); | |
2861 | } else { | |
2862 | if (iv != IV_MIN) { | |
2863 | SETi(-iv); | |
2864 | } else { | |
2865 | /* 2s complement assumption. Also, not really needed as | |
2866 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
2867 | SETu(IV_MIN); | |
2868 | } | |
a227d84d | 2869 | } |
28e5dec8 JH |
2870 | } |
2871 | } else{ | |
6f1401dc | 2872 | const NV value = SvNV_nomg(sv); |
774d564b | 2873 | if (value < 0.0) |
1b6737cc | 2874 | SETn(-value); |
a4474c9e DD |
2875 | else |
2876 | SETn(value); | |
774d564b | 2877 | } |
a0d0e21e | 2878 | } |
774d564b | 2879 | RETURN; |
463ee0b2 LW |
2880 | } |
2881 | ||
79072805 LW |
2882 | PP(pp_oct) |
2883 | { | |
97aff369 | 2884 | dVAR; dSP; dTARGET; |
5c144d81 | 2885 | const char *tmps; |
53305cf1 | 2886 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 2887 | STRLEN len; |
53305cf1 NC |
2888 | NV result_nv; |
2889 | UV result_uv; | |
1b6737cc | 2890 | SV* const sv = POPs; |
79072805 | 2891 | |
349d4f2f | 2892 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
2893 | if (DO_UTF8(sv)) { |
2894 | /* If Unicode, try to downgrade | |
2895 | * If not possible, croak. */ | |
1b6737cc | 2896 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
2897 | |
2898 | SvUTF8_on(tsv); | |
2899 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 2900 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 2901 | } |
daa2adfd NC |
2902 | if (PL_op->op_type == OP_HEX) |
2903 | goto hex; | |
2904 | ||
6f894ead | 2905 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 2906 | tmps++, len--; |
9e24b6e2 | 2907 | if (*tmps == '0') |
53305cf1 | 2908 | tmps++, len--; |
a674e8db | 2909 | if (*tmps == 'x' || *tmps == 'X') { |
daa2adfd | 2910 | hex: |
53305cf1 | 2911 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 2912 | } |
a674e8db | 2913 | else if (*tmps == 'b' || *tmps == 'B') |
53305cf1 | 2914 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 2915 | else |
53305cf1 NC |
2916 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
2917 | ||
2918 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
2919 | XPUSHn(result_nv); | |
2920 | } | |
2921 | else { | |
2922 | XPUSHu(result_uv); | |
2923 | } | |
79072805 LW |
2924 | RETURN; |
2925 | } | |
2926 | ||
2927 | /* String stuff. */ | |
2928 | ||
2929 | PP(pp_length) | |
2930 | { | |
97aff369 | 2931 | dVAR; dSP; dTARGET; |
0bd48802 | 2932 | SV * const sv = TOPs; |
a0ed51b3 | 2933 | |
0f43fd57 FC |
2934 | SvGETMAGIC(sv); |
2935 | if (SvOK(sv)) { | |
193059ca | 2936 | if (!IN_BYTES) |
0f43fd57 | 2937 | SETi(sv_len_utf8_nomg(sv)); |
9f621bb0 | 2938 | else |
0f43fd57 FC |
2939 | { |
2940 | STRLEN len; | |
2941 | (void)SvPV_nomg_const(sv,len); | |
2942 | SETi(len); | |
2943 | } | |
656266fc | 2944 | } else { |
9407f9c1 DL |
2945 | if (!SvPADTMP(TARG)) { |
2946 | sv_setsv_nomg(TARG, &PL_sv_undef); | |
2947 | SETTARG; | |
2948 | } | |
2949 | SETs(&PL_sv_undef); | |
92331800 | 2950 | } |
79072805 LW |
2951 | RETURN; |
2952 | } | |
2953 | ||
83f78d1a FC |
2954 | /* Returns false if substring is completely outside original string. |
2955 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
2956 | always be true for an explicit 0. | |
2957 | */ | |
2958 | bool | |
2959 | Perl_translate_substr_offsets(pTHX_ STRLEN curlen, IV pos1_iv, | |
2960 | bool pos1_is_uv, IV len_iv, | |
2961 | bool len_is_uv, STRLEN *posp, | |
2962 | STRLEN *lenp) | |
2963 | { | |
2964 | IV pos2_iv; | |
2965 | int pos2_is_uv; | |
2966 | ||
2967 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
2968 | ||
2969 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
2970 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
2971 | pos1_iv += curlen; | |
2972 | } | |
2973 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
2974 | return FALSE; | |
2975 | ||
2976 | if (len_iv || len_is_uv) { | |
2977 | if (!len_is_uv && len_iv < 0) { | |
2978 | pos2_iv = curlen + len_iv; | |
2979 | if (curlen) | |
2980 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
2981 | else | |
2982 | pos2_is_uv = 0; | |
2983 | } else { /* len_iv >= 0 */ | |
2984 | if (!pos1_is_uv && pos1_iv < 0) { | |
2985 | pos2_iv = pos1_iv + len_iv; | |
2986 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
2987 | } else { | |
2988 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
2989 | pos2_iv = curlen; | |
2990 | else | |
2991 | pos2_iv = pos1_iv+len_iv; | |
2992 | pos2_is_uv = 1; | |
2993 | } | |
2994 | } | |
2995 | } | |
2996 | else { | |
2997 | pos2_iv = curlen; | |
2998 | pos2_is_uv = 1; | |
2999 | } | |
3000 | ||
3001 | if (!pos2_is_uv && pos2_iv < 0) { | |
3002 | if (!pos1_is_uv && pos1_iv < 0) | |
3003 | return FALSE; | |
3004 | pos2_iv = 0; | |
3005 | } | |
3006 | else if (!pos1_is_uv && pos1_iv < 0) | |
3007 | pos1_iv = 0; | |
3008 | ||
3009 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3010 | pos2_iv = pos1_iv; | |
3011 | if ((UV)pos2_iv > curlen) | |
3012 | pos2_iv = curlen; | |
3013 | ||
3014 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3015 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3016 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3017 | ||
3018 | return TRUE; | |
3019 | } | |
3020 | ||
79072805 LW |
3021 | PP(pp_substr) |
3022 | { | |
97aff369 | 3023 | dVAR; dSP; dTARGET; |
79072805 | 3024 | SV *sv; |
463ee0b2 | 3025 | STRLEN curlen; |
9402d6ed | 3026 | STRLEN utf8_curlen; |
777f7c56 EB |
3027 | SV * pos_sv; |
3028 | IV pos1_iv; | |
3029 | int pos1_is_uv; | |
777f7c56 EB |
3030 | SV * len_sv; |
3031 | IV len_iv = 0; | |
83f78d1a | 3032 | int len_is_uv = 0; |
24fcb59f | 3033 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3034 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3035 | const char *tmps; |
9402d6ed | 3036 | SV *repl_sv = NULL; |
cbbf8932 | 3037 | const char *repl = NULL; |
7b8d334a | 3038 | STRLEN repl_len; |
7bc95ae1 | 3039 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3040 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3041 | |
78f9721b SM |
3042 | if (num_args > 2) { |
3043 | if (num_args > 3) { | |
24fcb59f | 3044 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3045 | } |
3046 | if ((len_sv = POPs)) { | |
3047 | len_iv = SvIV(len_sv); | |
83f78d1a | 3048 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3049 | } |
7bc95ae1 | 3050 | else num_args--; |
5d82c453 | 3051 | } |
777f7c56 EB |
3052 | pos_sv = POPs; |
3053 | pos1_iv = SvIV(pos_sv); | |
3054 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3055 | sv = POPs; |
24fcb59f FC |
3056 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3057 | assert(!repl_sv); | |
3058 | repl_sv = POPs; | |
3059 | } | |
849ca7ee | 3060 | PUTBACK; |
6582db62 | 3061 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3062 | SV * ret; |
3063 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3064 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3065 | LvTYPE(ret) = 'x'; | |
3066 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3067 | LvTARGOFF(ret) = | |
3068 | pos1_is_uv || pos1_iv >= 0 | |
3069 | ? (STRLEN)(UV)pos1_iv | |
3070 | : (LvFLAGS(ret) |= 1, (STRLEN)(UV)-pos1_iv); | |
3071 | LvTARGLEN(ret) = | |
3072 | len_is_uv || len_iv > 0 | |
3073 | ? (STRLEN)(UV)len_iv | |
3074 | : (LvFLAGS(ret) |= 2, (STRLEN)(UV)-len_iv); | |
3075 | ||
3076 | SPAGAIN; | |
3077 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
3078 | RETURN; | |
a74fb2cd | 3079 | } |
6582db62 FC |
3080 | if (repl_sv) { |
3081 | repl = SvPV_const(repl_sv, repl_len); | |
3082 | SvGETMAGIC(sv); | |
3083 | if (SvROK(sv)) | |
3084 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3085 | "Attempt to use reference as lvalue in substr" | |
3086 | ); | |
3087 | tmps = SvPV_force_nomg(sv, curlen); | |
3088 | if (DO_UTF8(repl_sv) && repl_len) { | |
3089 | if (!DO_UTF8(sv)) { | |
01680ee9 | 3090 | sv_utf8_upgrade_nomg(sv); |
6582db62 FC |
3091 | curlen = SvCUR(sv); |
3092 | } | |
3093 | } | |
3094 | else if (DO_UTF8(sv)) | |
3095 | repl_need_utf8_upgrade = TRUE; | |
3096 | } | |
3097 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3098 | if (DO_UTF8(sv)) { |
0d788f38 | 3099 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3100 | if (utf8_curlen == curlen) |
3101 | utf8_curlen = 0; | |
a0ed51b3 | 3102 | else |
9402d6ed | 3103 | curlen = utf8_curlen; |
a0ed51b3 | 3104 | } |
d1c2b58a | 3105 | else |
9402d6ed | 3106 | utf8_curlen = 0; |
a0ed51b3 | 3107 | |
83f78d1a FC |
3108 | { |
3109 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3110 | |
83f78d1a FC |
3111 | if (!translate_substr_offsets( |
3112 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3113 | )) goto bound_fail; | |
777f7c56 | 3114 | |
83f78d1a FC |
3115 | byte_len = len; |
3116 | byte_pos = utf8_curlen | |
0d788f38 | 3117 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3118 | |
2154eca7 | 3119 | tmps += byte_pos; |
bbddc9e0 CS |
3120 | |
3121 | if (rvalue) { | |
3122 | SvTAINTED_off(TARG); /* decontaminate */ | |
3123 | SvUTF8_off(TARG); /* decontaminate */ | |
3124 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3125 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3126 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3127 | #endif |
bbddc9e0 CS |
3128 | if (utf8_curlen) |
3129 | SvUTF8_on(TARG); | |
3130 | } | |
2154eca7 | 3131 | |
f7928d6c | 3132 | if (repl) { |
13e30c65 JH |
3133 | SV* repl_sv_copy = NULL; |
3134 | ||
3135 | if (repl_need_utf8_upgrade) { | |
3136 | repl_sv_copy = newSVsv(repl_sv); | |
3137 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3138 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3139 | } |
502d9230 VP |
3140 | if (!SvOK(sv)) |
3141 | sv_setpvs(sv, ""); | |
777f7c56 | 3142 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3143 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3144 | } |
79072805 | 3145 | } |
849ca7ee | 3146 | SPAGAIN; |
bbddc9e0 CS |
3147 | if (rvalue) { |
3148 | SvSETMAGIC(TARG); | |
3149 | PUSHs(TARG); | |
3150 | } | |
79072805 | 3151 | RETURN; |
777f7c56 | 3152 | |
1c900557 | 3153 | bound_fail: |
83f78d1a | 3154 | if (repl) |
777f7c56 EB |
3155 | Perl_croak(aTHX_ "substr outside of string"); |
3156 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3157 | RETPUSHUNDEF; | |
79072805 LW |
3158 | } |
3159 | ||
3160 | PP(pp_vec) | |
3161 | { | |
2154eca7 | 3162 | dVAR; dSP; |
eb578fdb KW |
3163 | const IV size = POPi; |
3164 | const IV offset = POPi; | |
3165 | SV * const src = POPs; | |
1b6737cc | 3166 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3167 | SV * ret; |
a0d0e21e | 3168 | |
81e118e0 | 3169 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3170 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3171 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3172 | LvTYPE(ret) = 'v'; | |
3173 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3174 | LvTARGOFF(ret) = offset; | |
3175 | LvTARGLEN(ret) = size; | |
3176 | } | |
3177 | else { | |
3178 | dTARGET; | |
3179 | SvTAINTED_off(TARG); /* decontaminate */ | |
3180 | ret = TARG; | |
79072805 LW |
3181 | } |
3182 | ||
2154eca7 EB |
3183 | sv_setuv(ret, do_vecget(src, offset, size)); |
3184 | PUSHs(ret); | |
79072805 LW |
3185 | RETURN; |
3186 | } | |
3187 | ||
3188 | PP(pp_index) | |
3189 | { | |
97aff369 | 3190 | dVAR; dSP; dTARGET; |
79072805 LW |
3191 | SV *big; |
3192 | SV *little; | |
c445ea15 | 3193 | SV *temp = NULL; |
ad66a58c | 3194 | STRLEN biglen; |
2723d216 | 3195 | STRLEN llen = 0; |
79072805 LW |
3196 | I32 offset; |
3197 | I32 retval; | |
73ee8be2 NC |
3198 | const char *big_p; |
3199 | const char *little_p; | |
2f040f7f NC |
3200 | bool big_utf8; |
3201 | bool little_utf8; | |
2723d216 | 3202 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3203 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3204 | |
e1dccc0d Z |
3205 | if (threeargs) |
3206 | offset = POPi; | |
79072805 LW |
3207 | little = POPs; |
3208 | big = POPs; | |
73ee8be2 NC |
3209 | big_p = SvPV_const(big, biglen); |
3210 | little_p = SvPV_const(little, llen); | |
3211 | ||
e609e586 NC |
3212 | big_utf8 = DO_UTF8(big); |
3213 | little_utf8 = DO_UTF8(little); | |
3214 | if (big_utf8 ^ little_utf8) { | |
3215 | /* One needs to be upgraded. */ | |
2f040f7f NC |
3216 | if (little_utf8 && !PL_encoding) { |
3217 | /* Well, maybe instead we might be able to downgrade the small | |
3218 | string? */ | |
1eced8f8 | 3219 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3220 | &little_utf8); |
3221 | if (little_utf8) { | |
3222 | /* If the large string is ISO-8859-1, and it's not possible to | |
3223 | convert the small string to ISO-8859-1, then there is no | |
3224 | way that it could be found anywhere by index. */ | |
3225 | retval = -1; | |
3226 | goto fail; | |
3227 | } | |
e609e586 | 3228 | |
2f040f7f NC |
3229 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3230 | to ensure it will get free()d */ | |
3231 | little = temp = newSV(0); | |
73ee8be2 NC |
3232 | sv_usepvn(temp, pv, llen); |
3233 | little_p = SvPVX(little); | |
e609e586 | 3234 | } else { |
73ee8be2 NC |
3235 | temp = little_utf8 |
3236 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
2f040f7f NC |
3237 | |
3238 | if (PL_encoding) { | |
3239 | sv_recode_to_utf8(temp, PL_encoding); | |
3240 | } else { | |
3241 | sv_utf8_upgrade(temp); | |
3242 | } | |
3243 | if (little_utf8) { | |
3244 | big = temp; | |
3245 | big_utf8 = TRUE; | |
73ee8be2 | 3246 | big_p = SvPV_const(big, biglen); |
2f040f7f NC |
3247 | } else { |
3248 | little = temp; | |
73ee8be2 | 3249 | little_p = SvPV_const(little, llen); |
2f040f7f | 3250 | } |
e609e586 NC |
3251 | } |
3252 | } | |
73ee8be2 NC |
3253 | if (SvGAMAGIC(big)) { |
3254 | /* Life just becomes a lot easier if I use a temporary here. | |
3255 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3256 | will trigger magic and overloading again, as will fbm_instr() | |
3257 | */ | |
59cd0e26 NC |
3258 | big = newSVpvn_flags(big_p, biglen, |
3259 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3260 | big_p = SvPVX(big); |
3261 | } | |
e4e44778 | 3262 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3263 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3264 | warn on undef, and we've already triggered a warning with the | |
3265 | SvPV_const some lines above. We can't remove that, as we need to | |
3266 | call some SvPV to trigger overloading early and find out if the | |
3267 | string is UTF-8. | |
3268 | This is all getting to messy. The API isn't quite clean enough, | |
3269 | because data access has side effects. | |
3270 | */ | |
59cd0e26 NC |
3271 | little = newSVpvn_flags(little_p, llen, |
3272 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3273 | little_p = SvPVX(little); |
3274 | } | |
e609e586 | 3275 | |
d3e26383 | 3276 | if (!threeargs) |
2723d216 | 3277 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3278 | else { |
ad66a58c | 3279 | if (big_utf8 && offset > 0) |
a0ed51b3 | 3280 | sv_pos_u2b(big, &offset, 0); |
73ee8be2 NC |
3281 | if (!is_index) |
3282 | offset += llen; | |
a0ed51b3 | 3283 | } |
79072805 LW |
3284 | if (offset < 0) |
3285 | offset = 0; | |
ad66a58c NC |
3286 | else if (offset > (I32)biglen) |
3287 | offset = biglen; | |
73ee8be2 NC |
3288 | if (!(little_p = is_index |
3289 | ? fbm_instr((unsigned char*)big_p + offset, | |
3290 | (unsigned char*)big_p + biglen, little, 0) | |
3291 | : rninstr(big_p, big_p + offset, | |
3292 | little_p, little_p + llen))) | |
a0ed51b3 | 3293 | retval = -1; |
ad66a58c | 3294 | else { |
73ee8be2 | 3295 | retval = little_p - big_p; |
ad66a58c NC |
3296 | if (retval > 0 && big_utf8) |
3297 | sv_pos_b2u(big, &retval); | |
3298 | } | |
ef8d46e8 | 3299 | SvREFCNT_dec(temp); |
2723d216 | 3300 | fail: |
e1dccc0d | 3301 | PUSHi(retval); |
79072805 LW |
3302 | RETURN; |
3303 | } | |
3304 | ||
3305 | PP(pp_sprintf) | |
3306 | { | |
97aff369 | 3307 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3308 | SvTAINTED_off(TARG); |
79072805 | 3309 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3310 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3311 | SP = ORIGMARK; |
3312 | PUSHTARG; | |
3313 | RETURN; | |
3314 | } | |
3315 | ||
79072805 LW |
3316 | PP(pp_ord) |
3317 | { | |
97aff369 | 3318 | dVAR; dSP; dTARGET; |
1eced8f8 | 3319 | |
7df053ec | 3320 | SV *argsv = POPs; |
ba210ebe | 3321 | STRLEN len; |
349d4f2f | 3322 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3323 | |
799ef3cb | 3324 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
1eced8f8 | 3325 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
799ef3cb | 3326 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
121910a4 JH |
3327 | argsv = tmpsv; |
3328 | } | |
79072805 | 3329 | |
d8f42585 KW |
3330 | XPUSHu(DO_UTF8(argsv) |
3331 | ? utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) | |
3332 | : (UV)(*s & 0xff)); | |
68795e93 | 3333 | |
79072805 LW |
3334 | RETURN; |
3335 | } | |
3336 | ||
463ee0b2 LW |
3337 | PP(pp_chr) |
3338 | { | |
97aff369 | 3339 | dVAR; dSP; dTARGET; |
463ee0b2 | 3340 | char *tmps; |
8a064bd6 | 3341 | UV value; |
71739502 | 3342 | SV *top = POPs; |
8a064bd6 | 3343 | |
71739502 FC |
3344 | SvGETMAGIC(top); |
3345 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3346 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
8a064bd6 | 3347 | || |
71739502 FC |
3348 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) |
3349 | && SvNV_nomg(top) < 0.0))) { | |
b3fe8680 FC |
3350 | if (ckWARN(WARN_UTF8)) { |
3351 | if (SvGMAGICAL(top)) { | |
3352 | SV *top2 = sv_newmortal(); | |
3353 | sv_setsv_nomg(top2, top); | |
3354 | top = top2; | |
3355 | } | |
3356 | Perl_warner(aTHX_ packWARN(WARN_UTF8), | |
3357 | "Invalid negative number (%"SVf") in chr", top); | |
3358 | } | |
8a064bd6 | 3359 | value = UNICODE_REPLACEMENT; |
8a064bd6 | 3360 | } else { |
71739502 | 3361 | value = SvUV_nomg(top); |
8a064bd6 | 3362 | } |
463ee0b2 | 3363 | |
862a34c6 | 3364 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3365 | |
0064a8a9 | 3366 | if (value > 255 && !IN_BYTES) { |
eb160463 | 3367 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
62961d2e | 3368 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3369 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3370 | *tmps = '\0'; |
3371 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3372 | SvUTF8_on(TARG); |
a0ed51b3 LW |
3373 | XPUSHs(TARG); |
3374 | RETURN; | |
3375 | } | |
3376 | ||
748a9306 | 3377 | SvGROW(TARG,2); |
463ee0b2 LW |
3378 | SvCUR_set(TARG, 1); |
3379 | tmps = SvPVX(TARG); | |
eb160463 | 3380 | *tmps++ = (char)value; |
748a9306 | 3381 | *tmps = '\0'; |
a0d0e21e | 3382 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3383 | |
88632417 | 3384 | if (PL_encoding && !IN_BYTES) { |
799ef3cb | 3385 | sv_recode_to_utf8(TARG, PL_encoding); |
88632417 | 3386 | tmps = SvPVX(TARG); |
28936164 KW |
3387 | if (SvCUR(TARG) == 0 |
3388 | || ! is_utf8_string((U8*)tmps, SvCUR(TARG)) | |
3389 | || UTF8_IS_REPLACEMENT((U8*) tmps, (U8*) tmps + SvCUR(TARG))) | |
3390 | { | |
4c5ed6e2 | 3391 | SvGROW(TARG, 2); |
d5a15ac2 | 3392 | tmps = SvPVX(TARG); |
4c5ed6e2 TS |
3393 | SvCUR_set(TARG, 1); |
3394 | *tmps++ = (char)value; | |
88632417 | 3395 | *tmps = '\0'; |
4c5ed6e2 | 3396 | SvUTF8_off(TARG); |
88632417 JH |
3397 | } |
3398 | } | |
4c5ed6e2 | 3399 | |
463ee0b2 LW |
3400 | XPUSHs(TARG); |
3401 | RETURN; | |
3402 | } | |
3403 | ||
79072805 LW |
3404 | PP(pp_crypt) |
3405 | { | |
79072805 | 3406 | #ifdef HAS_CRYPT |
97aff369 | 3407 | dVAR; dSP; dTARGET; |
5f74f29c | 3408 | dPOPTOPssrl; |
85c16d83 | 3409 | STRLEN len; |
10516c54 | 3410 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3411 | |
85c16d83 | 3412 | if (DO_UTF8(left)) { |
2bc69dc4 | 3413 | /* If Unicode, try to downgrade. |
f2791508 JH |
3414 | * If not possible, croak. |
3415 | * Yes, we made this up. */ | |
1b6737cc | 3416 | SV* const tsv = sv_2mortal(newSVsv(left)); |
2bc69dc4 | 3417 | |
f2791508 | 3418 | SvUTF8_on(tsv); |
2bc69dc4 | 3419 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3420 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3421 | } |
05404ffe JH |
3422 | # ifdef USE_ITHREADS |
3423 | # ifdef HAS_CRYPT_R | |
3424 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3425 | /* This should be threadsafe because in ithreads there is only | |
3426 | * one thread per interpreter. If this would not be true, | |
3427 | * we would need a mutex to protect this malloc. */ | |
3428 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3429 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3430 | #if defined(__GLIBC__) || defined(__EMX__) | |
3431 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3432 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3433 | /* work around glibc-2.2.5 bug */ | |
3434 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3435 | } | |
05404ffe | 3436 | #endif |
6ab58e4d | 3437 | } |
05404ffe JH |
3438 | # endif /* HAS_CRYPT_R */ |
3439 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3440 | # ifdef FCRYPT |
83003860 | 3441 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3442 | # else |
83003860 | 3443 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3444 | # endif |
ec93b65f | 3445 | SETTARG; |
4808266b | 3446 | RETURN; |
79072805 | 3447 | #else |
b13b2135 | 3448 | DIE(aTHX_ |
79072805 LW |
3449 | "The crypt() function is unimplemented due to excessive paranoia."); |
3450 | #endif | |
79072805 LW |
3451 | } |
3452 | ||
00f254e2 KW |
3453 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3454 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3455 | ||
79072805 LW |
3456 | PP(pp_ucfirst) |
3457 | { | |
00f254e2 KW |
3458 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3459 | * changes. This means that possibly we can change in-place, ie., just | |
3460 | * take the source and change that one character and store it back, but not | |
3461 | * if read-only etc, or if the length changes */ | |
3462 | ||
97aff369 | 3463 | dVAR; |
39644a26 | 3464 | dSP; |
d54190f6 | 3465 | SV *source = TOPs; |
00f254e2 | 3466 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3467 | STRLEN need; |
3468 | SV *dest; | |
00f254e2 KW |
3469 | bool inplace; /* ? Convert first char only, in-place */ |
3470 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3471 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3472 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3473 | const U8 *s; |
3474 | U8 *d; | |
3475 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3476 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3477 | * stored as UTF-8 at s. */ | |
3478 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3479 | * lowercased) character stored in tmpbuf. May be either | |
3480 | * UTF-8 or not, but in either case is the number of bytes */ | |
094a2f8c | 3481 | bool tainted = FALSE; |
d54190f6 NC |
3482 | |
3483 | SvGETMAGIC(source); | |
3484 | if (SvOK(source)) { | |
3485 | s = (const U8*)SvPV_nomg_const(source, slen); | |
3486 | } else { | |
0a0ffbce RGS |
3487 | if (ckWARN(WARN_UNINITIALIZED)) |
3488 | report_uninit(source); | |
1eced8f8 | 3489 | s = (const U8*)""; |
d54190f6 NC |
3490 | slen = 0; |
3491 | } | |
a0ed51b3 | 3492 | |
00f254e2 KW |
3493 | /* We may be able to get away with changing only the first character, in |
3494 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3495 | * not convert in-place. */ | |
3496 | inplace = SvPADTMP(source) && !SvREADONLY(source) && SvTEMP(source); | |
3497 | ||
3498 | /* First calculate what the changed first character should be. This affects | |
3499 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3500 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3501 | ||
3502 | if (! slen) { /* If empty */ | |
3503 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3504 | ulen = 0; |
00f254e2 KW |
3505 | } |
3506 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3507 | doing_utf8 = TRUE; |
17e95c9d | 3508 | ulen = UTF8SKIP(s); |
094a2f8c KW |
3509 | if (op_type == OP_UCFIRST) { |
3510 | _to_utf8_title_flags(s, tmpbuf, &tculen, | |
3511 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
3512 | } | |
3513 | else { | |
3514 | _to_utf8_lower_flags(s, tmpbuf, &tculen, | |
3515 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
3516 | } | |
00f254e2 | 3517 | |
17e95c9d KW |
3518 | /* we can't do in-place if the length changes. */ |
3519 | if (ulen != tculen) inplace = FALSE; | |
3520 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3521 | } |
00f254e2 KW |
3522 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3523 | * latin1 is treated as caseless. Note that a locale takes | |
3524 | * precedence */ | |
167d19f2 | 3525 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3526 | tculen = 1; /* Most characters will require one byte, but this will |
3527 | * need to be overridden for the tricky ones */ | |
3528 | need = slen + 1; | |
3529 | ||
3530 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3531 | |
00f254e2 KW |
3532 | /* lower case the first letter: no trickiness for any character */ |
3533 | *tmpbuf = (IN_LOCALE_RUNTIME) ? toLOWER_LC(*s) : | |
3534 | ((IN_UNI_8_BIT) ? toLOWER_LATIN1(*s) : toLOWER(*s)); | |
3535 | } | |
3536 | /* is ucfirst() */ | |
3537 | else if (IN_LOCALE_RUNTIME) { | |
3538 | *tmpbuf = toUPPER_LC(*s); /* This would be a bug if any locales | |
3539 | * have upper and title case different | |
3540 | */ | |
3541 | } | |
3542 | else if (! IN_UNI_8_BIT) { | |
3543 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3544 | * on EBCDIC machines whatever the | |
3545 | * native function does */ | |
3546 | } | |
3547 | else { /* is ucfirst non-UTF-8, not in locale, and cased latin1 */ | |
167d19f2 KW |
3548 | UV title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); |
3549 | if (tculen > 1) { | |
3550 | assert(tculen == 2); | |
3551 | ||
3552 | /* If the result is an upper Latin1-range character, it can | |
3553 | * still be represented in one byte, which is its ordinal */ | |
3554 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3555 | *tmpbuf = (U8) title_ord; | |
3556 | tculen = 1; | |
00f254e2 KW |
3557 | } |
3558 | else { | |
167d19f2 KW |
3559 | /* Otherwise it became more than one ASCII character (in |
3560 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3561 | * beyond Latin1, so the number of bytes changed, so can't | |
3562 | * replace just the first character in place. */ | |
3563 | inplace = FALSE; | |
3564 | ||
d14578b8 KW |
3565 | /* If the result won't fit in a byte, the entire result |
3566 | * will have to be in UTF-8. Assume worst case sizing in | |
3567 | * conversion. (all latin1 characters occupy at most two | |
3568 | * bytes in utf8) */ | |
167d19f2 KW |
3569 | if (title_ord > 255) { |
3570 | doing_utf8 = TRUE; | |
3571 | convert_source_to_utf8 = TRUE; | |
3572 | need = slen * 2 + 1; | |
3573 | ||
3574 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3575 | * (both) characters whose title case is above 255 is | |
3576 | * 2. */ | |
3577 | ulen = 2; | |
3578 | } | |
3579 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3580 | need = slen + 1 + 1; | |
3581 | } | |
00f254e2 | 3582 | } |
167d19f2 | 3583 | } |
00f254e2 KW |
3584 | } /* End of use Unicode (Latin1) semantics */ |
3585 | } /* End of changing the case of the first character */ | |
3586 | ||
3587 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3588 | * generate the result */ | |
3589 | if (inplace) { | |
3590 | ||
3591 | /* We can convert in place. This means we change just the first | |
3592 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3593 | dest = source; |
3594 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3595 | } else { | |
3596 | dTARGET; | |
3597 | ||
3598 | dest = TARG; | |
3599 | ||
00f254e2 KW |
3600 | /* Here, we can't convert in place; we earlier calculated how much |
3601 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3602 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3603 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3604 | (void)SvPOK_only(dest); |
3605 | ||
3606 | SETs(dest); | |
d54190f6 | 3607 | } |
44bc797b | 3608 | |
d54190f6 | 3609 | if (doing_utf8) { |
00f254e2 KW |
3610 | if (! inplace) { |
3611 | if (! convert_source_to_utf8) { | |
3612 | ||
3613 | /* Here both source and dest are in UTF-8, but have to create | |
3614 | * the entire output. We initialize the result to be the | |
3615 | * title/lower cased first character, and then append the rest | |
3616 | * of the string. */ | |
3617 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3618 | if (slen > ulen) { | |
3619 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3620 | } | |
3621 | } | |
3622 | else { | |
3623 | const U8 *const send = s + slen; | |
3624 | ||
3625 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3626 | * except we earlier UTF-8'd the first character of the source | |
3627 | * into tmpbuf. First put that into dest, and then append the | |
3628 | * rest of the source, converting it to UTF-8 as we go. */ | |
3629 | ||
3630 | /* Assert tculen is 2 here because the only two characters that | |
3631 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3632 | *d++ = *tmpbuf; | |
3633 | *d++ = *(tmpbuf + 1); | |
3634 | s++; /* We have just processed the 1st char */ | |
3635 | ||
3636 | for (; s < send; s++) { | |
3637 | d = uvchr_to_utf8(d, *s); | |
3638 | } | |
3639 | *d = '\0'; | |
3640 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3641 | } | |
d54190f6 | 3642 | SvUTF8_on(dest); |
a0ed51b3 | 3643 | } |
00f254e2 | 3644 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3645 | Copy(tmpbuf, d, tculen, U8); |
3646 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3647 | } |
094a2f8c KW |
3648 | |
3649 | if (tainted) { | |
3650 | TAINT; | |
3651 | SvTAINTED_on(dest); | |
3652 | } | |
a0ed51b3 | 3653 | } |
00f254e2 KW |
3654 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3655 | if (slen) { | |
2de3dbcc | 3656 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3657 | TAINT; |
d54190f6 | 3658 | SvTAINTED_on(dest); |
31351b04 | 3659 | } |
00f254e2 KW |
3660 | if (inplace) { /* in-place, only need to change the 1st char */ |
3661 | *d = *tmpbuf; | |
3662 | } | |
3663 | else { /* Not in-place */ | |
3664 | ||
3665 | /* Copy the case-changed character(s) from tmpbuf */ | |
3666 | Copy(tmpbuf, d, tculen, U8); | |
3667 | d += tculen - 1; /* Code below expects d to point to final | |
3668 | * character stored */ | |
3669 | } | |
3670 | } | |
3671 | else { /* empty source */ | |
3672 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3673 | *d = *s; |
3674 | } | |
3675 | ||
00f254e2 KW |
3676 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3677 | * the destination to retain that flag */ | |
93e088e8 | 3678 | if (SvUTF8(source) && ! IN_BYTES) |
d54190f6 NC |
3679 | SvUTF8_on(dest); |
3680 | ||
00f254e2 | 3681 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3682 | /* This will copy the trailing NUL */ |
3683 | Copy(s + 1, d + 1, slen, U8); | |
3684 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3685 | } |
bbce6d69 | 3686 | } |
539689e7 FC |
3687 | if (dest != source && SvTAINTED(source)) |
3688 | SvTAINT(dest); | |
d54190f6 | 3689 | SvSETMAGIC(dest); |
79072805 LW |
3690 | RETURN; |
3691 | } | |
3692 | ||
67306194 NC |
3693 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3694 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3695 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3696 | PP(pp_uc) |
3697 | { | |
97aff369 | 3698 | dVAR; |
39644a26 | 3699 | dSP; |
67306194 | 3700 | SV *source = TOPs; |
463ee0b2 | 3701 | STRLEN len; |
67306194 NC |
3702 | STRLEN min; |
3703 | SV *dest; | |
3704 | const U8 *s; | |
3705 | U8 *d; | |
79072805 | 3706 | |
67306194 NC |
3707 | SvGETMAGIC(source); |
3708 | ||
3709 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
00f254e2 KW |
3710 | && SvTEMP(source) && !DO_UTF8(source) |
3711 | && (IN_LOCALE_RUNTIME || ! IN_UNI_8_BIT)) { | |
3712 | ||
3713 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3714 | * make the loop tight, so we overwrite the source with the dest before | |
3715 | * looking at it, and we need to look at the original source | |
3716 | * afterwards. There would also need to be code added to handle | |
3717 | * switching to not in-place in midstream if we run into characters | |
3718 | * that change the length. | |
3719 | */ | |
67306194 NC |
3720 | dest = source; |
3721 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3722 | min = len + 1; | |
3723 | } else { | |
a0ed51b3 | 3724 | dTARGET; |
a0ed51b3 | 3725 | |
67306194 | 3726 | dest = TARG; |
128c9517 | 3727 | |
67306194 NC |
3728 | /* The old implementation would copy source into TARG at this point. |
3729 | This had the side effect that if source was undef, TARG was now | |
3730 | an undefined SV with PADTMP set, and they don't warn inside | |
3731 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3732 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3733 | little games. */ | |
3734 | ||
3735 | if (SvOK(source)) { | |
3736 | s = (const U8*)SvPV_nomg_const(source, len); | |
3737 | } else { | |
0a0ffbce RGS |
3738 | if (ckWARN(WARN_UNINITIALIZED)) |
3739 | report_uninit(source); | |
1eced8f8 | 3740 | s = (const U8*)""; |
67306194 | 3741 | len = 0; |
a0ed51b3 | 3742 | } |
67306194 NC |
3743 | min = len + 1; |
3744 | ||
3745 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3746 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
3747 | (void)SvPOK_only(dest); |
3748 | ||
3749 | SETs(dest); | |
a0ed51b3 | 3750 | } |
31351b04 | 3751 | |
67306194 NC |
3752 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
3753 | to check DO_UTF8 again here. */ | |
3754 | ||
3755 | if (DO_UTF8(source)) { | |
3756 | const U8 *const send = s + len; | |
bfac13d4 | 3757 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
094a2f8c | 3758 | bool tainted = FALSE; |
67306194 | 3759 | |
4c8a458a KW |
3760 | /* All occurrences of these are to be moved to follow any other marks. |
3761 | * This is context-dependent. We may not be passed enough context to | |
3762 | * move the iota subscript beyond all of them, but we do the best we can | |
3763 | * with what we're given. The result is always better than if we | |
3764 | * hadn't done this. And, the problem would only arise if we are | |
3765 | * passed a character without all its combining marks, which would be | |
3766 | * the caller's mistake. The information this is based on comes from a | |
3767 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
3768 | * itself) and so can't be checked properly to see if it ever gets | |
3769 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 3770 | bool in_iota_subscript = FALSE; |
00f254e2 | 3771 | |
67306194 | 3772 | while (s < send) { |
3e16b0e6 KW |
3773 | STRLEN u; |
3774 | STRLEN ulen; | |
3775 | UV uv; | |
7dbf68d2 | 3776 | if (in_iota_subscript && ! _is_utf8_mark(s)) { |
3e16b0e6 | 3777 | |
00f254e2 | 3778 | /* A non-mark. Time to output the iota subscript */ |
a78bc3c6 KW |
3779 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
3780 | d += capital_iota_len; | |
00f254e2 | 3781 | in_iota_subscript = FALSE; |
8e058693 | 3782 | } |
00f254e2 | 3783 | |
8e058693 KW |
3784 | /* Then handle the current character. Get the changed case value |
3785 | * and copy it to the output buffer */ | |
00f254e2 | 3786 | |
8e058693 | 3787 | u = UTF8SKIP(s); |
094a2f8c KW |
3788 | uv = _to_utf8_upper_flags(s, tmpbuf, &ulen, |
3789 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
a78bc3c6 KW |
3790 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
3791 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
8e058693 | 3792 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 3793 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
3794 | { |
3795 | in_iota_subscript = TRUE; | |
3796 | } | |
3797 | else { | |
3798 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
3799 | /* If the eventually required minimum size outgrows the | |
3800 | * available space, we need to grow. */ | |
3801 | const UV o = d - (U8*)SvPVX_const(dest); | |
3802 | ||
3803 | /* If someone uppercases one million U+03B0s we SvGROW() | |
3804 | * one million times. Or we could try guessing how much to | |
3805 | * allocate without allocating too much. Such is life. | |
3806 | * See corresponding comment in lc code for another option | |
3807 | * */ | |
3808 | SvGROW(dest, min); | |
3809 | d = (U8*)SvPVX(dest) + o; | |
3810 | } | |
3811 | Copy(tmpbuf, d, ulen, U8); | |
3812 | d += ulen; | |
3813 | } | |
3814 | s += u; | |
67306194 | 3815 | } |
4c8a458a | 3816 | if (in_iota_subscript) { |
a78bc3c6 KW |
3817 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
3818 | d += capital_iota_len; | |
4c8a458a | 3819 | } |
67306194 NC |
3820 | SvUTF8_on(dest); |
3821 | *d = '\0'; | |
094a2f8c | 3822 | |
67306194 | 3823 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
094a2f8c KW |
3824 | if (tainted) { |
3825 | TAINT; | |
3826 | SvTAINTED_on(dest); | |
3827 | } | |
4c8a458a KW |
3828 | } |
3829 | else { /* Not UTF-8 */ | |
67306194 NC |
3830 | if (len) { |
3831 | const U8 *const send = s + len; | |
00f254e2 KW |
3832 | |
3833 | /* Use locale casing if in locale; regular style if not treating | |
3834 | * latin1 as having case; otherwise the latin1 casing. Do the | |
3835 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 3836 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3837 | TAINT; |
67306194 NC |
3838 | SvTAINTED_on(dest); |
3839 | for (; s < send; d++, s++) | |
3840 | *d = toUPPER_LC(*s); | |
31351b04 | 3841 | } |
00f254e2 KW |
3842 | else if (! IN_UNI_8_BIT) { |
3843 | for (; s < send; d++, s++) { | |
67306194 | 3844 | *d = toUPPER(*s); |
00f254e2 | 3845 | } |
31351b04 | 3846 | } |
00f254e2 KW |
3847 | else { |
3848 | for (; s < send; d++, s++) { | |
3849 | *d = toUPPER_LATIN1_MOD(*s); | |
d14578b8 KW |
3850 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) { |
3851 | continue; | |
3852 | } | |
00f254e2 KW |
3853 | |
3854 | /* The mainstream case is the tight loop above. To avoid | |
3855 | * extra tests in that, all three characters that require | |
3856 | * special handling are mapped by the MOD to the one tested | |
3857 | * just above. | |
3858 | * Use the source to distinguish between the three cases */ | |
3859 | ||
3860 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
3861 | ||
3862 | /* uc() of this requires 2 characters, but they are | |
3863 | * ASCII. If not enough room, grow the string */ | |
3864 | if (SvLEN(dest) < ++min) { | |
3865 | const UV o = d - (U8*)SvPVX_const(dest); | |
3866 | SvGROW(dest, min); | |
3867 | d = (U8*)SvPVX(dest) + o; | |
3868 | } | |
3869 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
3870 | continue; /* Back to the tight loop; still in ASCII */ | |
3871 | } | |
3872 | ||
3873 | /* The other two special handling characters have their | |
3874 | * upper cases outside the latin1 range, hence need to be | |
3875 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
3876 | * here we are somewhere in the middle of processing a | |
3877 | * non-UTF-8 string, and realize that we will have to convert | |
3878 | * the whole thing to UTF-8. What to do? There are | |
3879 | * several possibilities. The simplest to code is to | |
3880 | * convert what we have so far, set a flag, and continue on | |
3881 | * in the loop. The flag would be tested each time through | |
3882 | * the loop, and if set, the next character would be | |
3883 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
3884 | * to slow down the mainstream case at all for this fairly | |
3885 | * rare case, so I didn't want to add a test that didn't | |
3886 | * absolutely have to be there in the loop, besides the | |
3887 | * possibility that it would get too complicated for | |
3888 | * optimizers to deal with. Another possibility is to just | |
3889 | * give up, convert the source to UTF-8, and restart the | |
3890 | * function that way. Another possibility is to convert | |
3891 | * both what has already been processed and what is yet to | |
3892 | * come separately to UTF-8, then jump into the loop that | |
3893 | * handles UTF-8. But the most efficient time-wise of the | |
3894 | * ones I could think of is what follows, and turned out to | |
3895 | * not require much extra code. */ | |
3896 | ||
3897 | /* Convert what we have so far into UTF-8, telling the | |
3898 | * function that we know it should be converted, and to | |
3899 | * allow extra space for what we haven't processed yet. | |
3900 | * Assume the worst case space requirements for converting | |
3901 | * what we haven't processed so far: that it will require | |
3902 | * two bytes for each remaining source character, plus the | |
3903 | * NUL at the end. This may cause the string pointer to | |
3904 | * move, so re-find it. */ | |
3905 | ||
3906 | len = d - (U8*)SvPVX_const(dest); | |
3907 | SvCUR_set(dest, len); | |
3908 | len = sv_utf8_upgrade_flags_grow(dest, | |
3909 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3910 | (send -s) * 2 + 1); | |
3911 | d = (U8*)SvPVX(dest) + len; | |
3912 | ||
00f254e2 KW |
3913 | /* Now process the remainder of the source, converting to |
3914 | * upper and UTF-8. If a resulting byte is invariant in | |
3915 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
3916 | * append it to the output. */ | |
00f254e2 | 3917 | for (; s < send; s++) { |
0ecfbd28 KW |
3918 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
3919 | d += len; | |
00f254e2 KW |
3920 | } |
3921 | ||
3922 | /* Here have processed the whole source; no need to continue | |
3923 | * with the outer loop. Each character has been converted | |
3924 | * to upper case and converted to UTF-8 */ | |
3925 | ||
3926 | break; | |
3927 | } /* End of processing all latin1-style chars */ | |
3928 | } /* End of processing all chars */ | |
3929 | } /* End of source is not empty */ | |
3930 | ||
67306194 | 3931 | if (source != dest) { |
00f254e2 | 3932 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
3933 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
3934 | } | |
00f254e2 | 3935 | } /* End of isn't utf8 */ |
539689e7 FC |
3936 | if (dest != source && SvTAINTED(source)) |
3937 | SvTAINT(dest); | |
67306194 | 3938 | SvSETMAGIC(dest); |
79072805 LW |
3939 | RETURN; |
3940 | } | |
3941 | ||
3942 | PP(pp_lc) | |
3943 | { | |
97aff369 | 3944 | dVAR; |
39644a26 | 3945 | dSP; |
ec9af7d4 | 3946 | SV *source = TOPs; |
463ee0b2 | 3947 | STRLEN len; |
ec9af7d4 NC |
3948 | STRLEN min; |
3949 | SV *dest; | |
3950 | const U8 *s; | |
3951 | U8 *d; | |
79072805 | 3952 | |
ec9af7d4 NC |
3953 | SvGETMAGIC(source); |
3954 | ||
3955 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
17fa0776 | 3956 | && SvTEMP(source) && !DO_UTF8(source)) { |
ec9af7d4 | 3957 | |
00f254e2 KW |
3958 | /* We can convert in place, as lowercasing anything in the latin1 range |
3959 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
3960 | dest = source; |
3961 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3962 | min = len + 1; | |
3963 | } else { | |
a0ed51b3 | 3964 | dTARGET; |
a0ed51b3 | 3965 | |
ec9af7d4 NC |
3966 | dest = TARG; |
3967 | ||
3968 | /* The old implementation would copy source into TARG at this point. | |
3969 | This had the side effect that if source was undef, TARG was now | |
3970 | an undefined SV with PADTMP set, and they don't warn inside | |
3971 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3972 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3973 | little games. */ | |
3974 | ||
3975 | if (SvOK(source)) { | |
3976 | s = (const U8*)SvPV_nomg_const(source, len); | |
3977 | } else { | |
0a0ffbce RGS |
3978 | if (ckWARN(WARN_UNINITIALIZED)) |
3979 | report_uninit(source); | |
1eced8f8 | 3980 | s = (const U8*)""; |
ec9af7d4 | 3981 | len = 0; |
a0ed51b3 | 3982 | } |
ec9af7d4 | 3983 | min = len + 1; |
128c9517 | 3984 | |
ec9af7d4 | 3985 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3986 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
3987 | (void)SvPOK_only(dest); |
3988 | ||
3989 | SETs(dest); | |
3990 | } | |
3991 | ||
3992 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
3993 | to check DO_UTF8 again here. */ | |
3994 | ||
3995 | if (DO_UTF8(source)) { | |
3996 | const U8 *const send = s + len; | |
3997 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
094a2f8c | 3998 | bool tainted = FALSE; |
ec9af7d4 NC |
3999 | |
4000 | while (s < send) { | |
06b5486a KW |
4001 | const STRLEN u = UTF8SKIP(s); |
4002 | STRLEN ulen; | |
00f254e2 | 4003 | |
094a2f8c KW |
4004 | _to_utf8_lower_flags(s, tmpbuf, &ulen, |
4005 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
00f254e2 | 4006 | |
06b5486a KW |
4007 | /* Here is where we would do context-sensitive actions. See the |
4008 | * commit message for this comment for why there isn't any */ | |
00f254e2 | 4009 | |
06b5486a | 4010 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 4011 | |
06b5486a KW |
4012 | /* If the eventually required minimum size outgrows the |
4013 | * available space, we need to grow. */ | |
4014 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4015 | |
06b5486a KW |
4016 | /* If someone lowercases one million U+0130s we SvGROW() one |
4017 | * million times. Or we could try guessing how much to | |
4018 | * allocate without allocating too much. Such is life. | |
4019 | * Another option would be to grow an extra byte or two more | |
4020 | * each time we need to grow, which would cut down the million | |
4021 | * to 500K, with little waste */ | |
4022 | SvGROW(dest, min); | |
4023 | d = (U8*)SvPVX(dest) + o; | |
4024 | } | |
86510fb1 | 4025 | |
06b5486a KW |
4026 | /* Copy the newly lowercased letter to the output buffer we're |
4027 | * building */ | |
4028 | Copy(tmpbuf, d, ulen, U8); | |
4029 | d += ulen; | |
4030 | s += u; | |
00f254e2 | 4031 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4032 | SvUTF8_on(dest); |
4033 | *d = '\0'; | |
4034 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
094a2f8c KW |
4035 | if (tainted) { |
4036 | TAINT; | |
4037 | SvTAINTED_on(dest); | |
4038 | } | |
00f254e2 | 4039 | } else { /* Not utf8 */ |
31351b04 | 4040 | if (len) { |
ec9af7d4 | 4041 | const U8 *const send = s + len; |
00f254e2 KW |
4042 | |
4043 | /* Use locale casing if in locale; regular style if not treating | |
4044 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4045 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 4046 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 4047 | TAINT; |
ec9af7d4 NC |
4048 | SvTAINTED_on(dest); |
4049 | for (; s < send; d++, s++) | |
4050 | *d = toLOWER_LC(*s); | |
31351b04 | 4051 | } |
00f254e2 KW |
4052 | else if (! IN_UNI_8_BIT) { |
4053 | for (; s < send; d++, s++) { | |
ec9af7d4 | 4054 | *d = toLOWER(*s); |
00f254e2 KW |
4055 | } |
4056 | } | |
4057 | else { | |
4058 | for (; s < send; d++, s++) { | |
4059 | *d = toLOWER_LATIN1(*s); | |
4060 | } | |
31351b04 | 4061 | } |
bbce6d69 | 4062 | } |
ec9af7d4 NC |
4063 | if (source != dest) { |
4064 | *d = '\0'; | |
4065 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4066 | } | |
79072805 | 4067 | } |
539689e7 FC |
4068 | if (dest != source && SvTAINTED(source)) |
4069 | SvTAINT(dest); | |
ec9af7d4 | 4070 | SvSETMAGIC(dest); |
79072805 LW |
4071 | RETURN; |
4072 | } | |
4073 | ||
a0d0e21e | 4074 | PP(pp_quotemeta) |
79072805 | 4075 | { |
97aff369 | 4076 | dVAR; dSP; dTARGET; |
1b6737cc | 4077 | SV * const sv = TOPs; |
a0d0e21e | 4078 | STRLEN len; |
eb578fdb | 4079 | const char *s = SvPV_const(sv,len); |
79072805 | 4080 | |
7e2040f0 | 4081 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4082 | if (len) { |
eb578fdb | 4083 | char *d; |
862a34c6 | 4084 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4085 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4086 | d = SvPVX(TARG); |
7e2040f0 | 4087 | if (DO_UTF8(sv)) { |
0dd2cdef | 4088 | while (len) { |
29050de5 | 4089 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4090 | bool to_quote = FALSE; |
4091 | ||
4092 | if (UTF8_IS_INVARIANT(*s)) { | |
4093 | if (_isQUOTEMETA(*s)) { | |
4094 | to_quote = TRUE; | |
4095 | } | |
4096 | } | |
4097 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
20adcf7c KW |
4098 | |
4099 | /* In locale, we quote all non-ASCII Latin1 chars. | |
4100 | * Otherwise use the quoting rules */ | |
4101 | if (IN_LOCALE_RUNTIME | |
94bb8c36 | 4102 | || _isQUOTEMETA(TWO_BYTE_UTF8_TO_NATIVE(*s, *(s + 1)))) |
2e2b2571 KW |
4103 | { |
4104 | to_quote = TRUE; | |
4105 | } | |
4106 | } | |
685289b5 | 4107 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4108 | to_quote = TRUE; |
4109 | } | |
4110 | ||
4111 | if (to_quote) { | |
4112 | *d++ = '\\'; | |
4113 | } | |
29050de5 KW |
4114 | if (ulen > len) |
4115 | ulen = len; | |
4116 | len -= ulen; | |
4117 | while (ulen--) | |
4118 | *d++ = *s++; | |
0dd2cdef | 4119 | } |
7e2040f0 | 4120 | SvUTF8_on(TARG); |
0dd2cdef | 4121 | } |
2e2b2571 KW |
4122 | else if (IN_UNI_8_BIT) { |
4123 | while (len--) { | |
4124 | if (_isQUOTEMETA(*s)) | |
4125 | *d++ = '\\'; | |
4126 | *d++ = *s++; | |
4127 | } | |
4128 | } | |
0dd2cdef | 4129 | else { |
2e2b2571 KW |
4130 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4131 | * including everything above ASCII */ | |
0dd2cdef | 4132 | while (len--) { |
adfec831 | 4133 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4134 | *d++ = '\\'; |
4135 | *d++ = *s++; | |
4136 | } | |
79072805 | 4137 | } |
a0d0e21e | 4138 | *d = '\0'; |
349d4f2f | 4139 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4140 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4141 | } |
a0d0e21e LW |
4142 | else |
4143 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4144 | SETTARG; |
79072805 LW |
4145 | RETURN; |
4146 | } | |
4147 | ||
838f2281 BF |
4148 | PP(pp_fc) |
4149 | { | |
4150 | dVAR; | |
4151 | dTARGET; | |
4152 | dSP; | |
4153 | SV *source = TOPs; | |
4154 | STRLEN len; | |
4155 | STRLEN min; | |
4156 | SV *dest; | |
4157 | const U8 *s; | |
4158 | const U8 *send; | |
4159 | U8 *d; | |
bfac13d4 | 4160 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
838f2281 BF |
4161 | const bool full_folding = TRUE; |
4162 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) | |
4163 | | ( IN_LOCALE_RUNTIME ? FOLD_FLAGS_LOCALE : 0 ); | |
4164 | ||
4165 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4166 | * You are welcome(?) -Hugmeir | |
4167 | */ | |
4168 | ||
4169 | SvGETMAGIC(source); | |
4170 | ||
4171 | dest = TARG; | |
4172 | ||
4173 | if (SvOK(source)) { | |
4174 | s = (const U8*)SvPV_nomg_const(source, len); | |
4175 | } else { | |
4176 | if (ckWARN(WARN_UNINITIALIZED)) | |
4177 | report_uninit(source); | |
4178 | s = (const U8*)""; | |
4179 | len = 0; | |
4180 | } | |
4181 | ||
4182 | min = len + 1; | |
4183 | ||
4184 | SvUPGRADE(dest, SVt_PV); | |
4185 | d = (U8*)SvGROW(dest, min); | |
4186 | (void)SvPOK_only(dest); | |
4187 | ||
4188 | SETs(dest); | |
4189 | ||
4190 | send = s + len; | |
4191 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ | |
4192 | bool tainted = FALSE; | |
4193 | while (s < send) { | |
4194 | const STRLEN u = UTF8SKIP(s); | |
4195 | STRLEN ulen; | |
4196 | ||
4197 | _to_utf8_fold_flags(s, tmpbuf, &ulen, flags, &tainted); | |
4198 | ||
4199 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4200 | const UV o = d - (U8*)SvPVX_const(dest); | |
4201 | SvGROW(dest, min); | |
4202 | d = (U8*)SvPVX(dest) + o; | |
4203 | } | |
4204 | ||
4205 | Copy(tmpbuf, d, ulen, U8); | |
4206 | d += ulen; | |
4207 | s += u; | |
4208 | } | |
4209 | SvUTF8_on(dest); | |
4210 | if (tainted) { | |
4211 | TAINT; | |
4212 | SvTAINTED_on(dest); | |
4213 | } | |
4214 | } /* Unflagged string */ | |
0902dd32 | 4215 | else if (len) { |
838f2281 BF |
4216 | if ( IN_LOCALE_RUNTIME ) { /* Under locale */ |
4217 | TAINT; | |
4218 | SvTAINTED_on(dest); | |
4219 | for (; s < send; d++, s++) | |
d22b930b | 4220 | *d = toFOLD_LC(*s); |
838f2281 BF |
4221 | } |
4222 | else if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
4223 | for (; s < send; d++, s++) | |
d22b930b | 4224 | *d = toFOLD(*s); |
838f2281 BF |
4225 | } |
4226 | else { | |
d14578b8 KW |
4227 | /* For ASCII and the Latin-1 range, there's only two troublesome |
4228 | * folds, \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
22e255cb | 4229 | * casefolding becomes 'ss'; and \x{B5} (\N{MICRO SIGN}), which |
d14578b8 KW |
4230 | * under any fold becomes \x{3BC} (\N{GREEK SMALL LETTER MU}) -- |
4231 | * For the rest, the casefold is their lowercase. */ | |
838f2281 BF |
4232 | for (; s < send; d++, s++) { |
4233 | if (*s == MICRO_SIGN) { | |
d14578b8 KW |
4234 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
4235 | * which is outside of the latin-1 range. There's a couple | |
4236 | * of ways to deal with this -- khw discusses them in | |
4237 | * pp_lc/uc, so go there :) What we do here is upgrade what | |
4238 | * we had already casefolded, then enter an inner loop that | |
4239 | * appends the rest of the characters as UTF-8. */ | |
838f2281 BF |
4240 | len = d - (U8*)SvPVX_const(dest); |
4241 | SvCUR_set(dest, len); | |
4242 | len = sv_utf8_upgrade_flags_grow(dest, | |
4243 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
ea4d335b KW |
4244 | /* The max expansion for latin1 |
4245 | * chars is 1 byte becomes 2 */ | |
4246 | (send -s) * 2 + 1); | |
838f2281 BF |
4247 | d = (U8*)SvPVX(dest) + len; |
4248 | ||
a78bc3c6 KW |
4249 | Copy(GREEK_SMALL_LETTER_MU_UTF8, d, small_mu_len, U8); |
4250 | d += small_mu_len; | |
838f2281 BF |
4251 | s++; |
4252 | for (; s < send; s++) { | |
4253 | STRLEN ulen; | |
4254 | UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags); | |
6f2d5cbc | 4255 | if UVCHR_IS_INVARIANT(fc) { |
d14578b8 KW |
4256 | if (full_folding |
4257 | && *s == LATIN_SMALL_LETTER_SHARP_S) | |
4258 | { | |
838f2281 BF |
4259 | *d++ = 's'; |
4260 | *d++ = 's'; | |
4261 | } | |
4262 | else | |
4263 | *d++ = (U8)fc; | |
4264 | } | |
4265 | else { | |
4266 | Copy(tmpbuf, d, ulen, U8); | |
4267 | d += ulen; | |
4268 | } | |
4269 | } | |
4270 | break; | |
4271 | } | |
4272 | else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) { | |
d14578b8 KW |
4273 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4274 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4275 | if (SvLEN(dest) < ++min) { |
4276 | const UV o = d - (U8*)SvPVX_const(dest); | |
4277 | SvGROW(dest, min); | |
4278 | d = (U8*)SvPVX(dest) + o; | |
4279 | } | |
4280 | *(d)++ = 's'; | |
4281 | *d = 's'; | |
4282 | } | |
d14578b8 KW |
4283 | else { /* If it's not one of those two, the fold is their lower |
4284 | case */ | |
838f2281 BF |
4285 | *d = toLOWER_LATIN1(*s); |
4286 | } | |
4287 | } | |
4288 | } | |
4289 | } | |
4290 | *d = '\0'; | |
4291 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4292 | ||
4293 | if (SvTAINTED(source)) | |
4294 | SvTAINT(dest); | |
4295 | SvSETMAGIC(dest); | |
4296 | RETURN; | |
4297 | } | |
4298 | ||
a0d0e21e | 4299 | /* Arrays. */ |
79072805 | 4300 | |
a0d0e21e | 4301 | PP(pp_aslice) |
79072805 | 4302 | { |
97aff369 | 4303 | dVAR; dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4304 | AV *const av = MUTABLE_AV(POPs); |
4305 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4306 | |
a0d0e21e | 4307 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4308 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4309 | bool can_preserve = FALSE; | |
4310 | ||
4311 | if (localizing) { | |
4312 | MAGIC *mg; | |
4313 | HV *stash; | |
4314 | ||
4315 | can_preserve = SvCANEXISTDELETE(av); | |
4316 | } | |
4317 | ||
4318 | if (lval && localizing) { | |
eb578fdb | 4319 | SV **svp; |
c70927a6 | 4320 | SSize_t max = -1; |
924508f0 | 4321 | for (svp = MARK + 1; svp <= SP; svp++) { |
c70927a6 | 4322 | const SSize_t elem = SvIV(*svp); |
748a9306 LW |
4323 | if (elem > max) |
4324 | max = elem; | |
4325 | } | |
4326 | if (max > AvMAX(av)) | |
4327 | av_extend(av, max); | |
4328 | } | |
4ad10a0b | 4329 | |
a0d0e21e | 4330 | while (++MARK <= SP) { |
eb578fdb | 4331 | SV **svp; |
c70927a6 | 4332 | SSize_t elem = SvIV(*MARK); |
4ad10a0b | 4333 | bool preeminent = TRUE; |
a0d0e21e | 4334 | |
4ad10a0b VP |
4335 | if (localizing && can_preserve) { |
4336 | /* If we can determine whether the element exist, | |
4337 | * Try to preserve the existenceness of a tied array | |
4338 | * element by using EXISTS and DELETE if possible. | |
4339 | * Fallback to FETCH and STORE otherwise. */ | |
4340 | preeminent = av_exists(av, elem); | |
4341 | } | |
4342 | ||
a0d0e21e LW |
4343 | svp = av_fetch(av, elem, lval); |
4344 | if (lval) { | |
ce0d59fd | 4345 | if (!svp || !*svp) |
cea2e8a9 | 4346 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4347 | if (localizing) { |
4348 | if (preeminent) | |
4349 | save_aelem(av, elem, svp); | |
4350 | else | |
4351 | SAVEADELETE(av, elem); | |
4352 | } | |
79072805 | 4353 | } |
3280af22 | 4354 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4355 | } |
4356 | } | |
748a9306 | 4357 | if (GIMME != G_ARRAY) { |
a0d0e21e | 4358 | MARK = ORIGMARK; |
04ab2c87 | 4359 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4360 | SP = MARK; |
4361 | } | |
79072805 LW |
4362 | RETURN; |
4363 | } | |
4364 | ||
6dd3e0f2 RZ |
4365 | PP(pp_kvaslice) |
4366 | { | |
4367 | dVAR; dSP; dMARK; | |
4368 | AV *const av = MUTABLE_AV(POPs); | |
4369 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4370 | SSize_t items = SP - MARK; |
6dd3e0f2 RZ |
4371 | |
4372 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4373 | const I32 flags = is_lvalue_sub(); | |
4374 | if (flags) { | |
4375 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4376 | /* diag_listed_as: Can't modify %s in %s */ |
6dd3e0f2 RZ |
4377 | Perl_croak(aTHX_ "Can't modify index/value array slice in list assignment"); |
4378 | lval = flags; | |
4379 | } | |
4380 | } | |
4381 | ||
4382 | MEXTEND(SP,items); | |
4383 | while (items > 1) { | |
4384 | *(MARK+items*2-1) = *(MARK+items); | |
4385 | items--; | |
4386 | } | |
4387 | items = SP-MARK; | |
4388 | SP += items; | |
4389 | ||
4390 | while (++MARK <= SP) { | |
4391 | SV **svp; | |
4392 | ||
4393 | svp = av_fetch(av, SvIV(*MARK), lval); | |
4394 | if (lval) { | |
4395 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4396 | DIE(aTHX_ PL_no_aelem, SvIV(*MARK)); | |
4397 | } | |
4398 | *MARK = sv_mortalcopy(*MARK); | |
4399 | } | |
4400 | *++MARK = svp ? *svp : &PL_sv_undef; | |
4401 | } | |
4402 | if (GIMME != G_ARRAY) { | |
4403 | MARK = SP - items*2; | |
4404 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4405 | SP = MARK; | |
4406 | } | |
4407 | RETURN; | |
4408 | } | |
4409 | ||
cba5a3b0 DG |
4410 | /* Smart dereferencing for keys, values and each */ |
4411 | PP(pp_rkeys) | |
4412 | { | |
4413 | dVAR; | |
4414 | dSP; | |
4415 | dPOPss; | |
4416 | ||
7ac5715b FC |
4417 | SvGETMAGIC(sv); |
4418 | ||
4419 | if ( | |
4420 | !SvROK(sv) | |
4421 | || (sv = SvRV(sv), | |
4422 | (SvTYPE(sv) != SVt_PVHV && SvTYPE(sv) != SVt_PVAV) | |
4423 | || SvOBJECT(sv) | |
4424 | ) | |
4425 | ) { | |
4426 | DIE(aTHX_ | |
4427 | "Type of argument to %s must be unblessed hashref or arrayref", | |
4c540399 | 4428 | PL_op_desc[PL_op->op_type] ); |
cba5a3b0 DG |
4429 | } |
4430 | ||
d8065907 FC |
4431 | if (PL_op->op_flags & OPf_SPECIAL && SvTYPE(sv) == SVt_PVAV) |
4432 | DIE(aTHX_ | |
4433 | "Can't modify %s in %s", | |
4434 | PL_op_desc[PL_op->op_type], PL_op_desc[PL_op->op_next->op_type] | |
4435 | ); | |
4436 | ||
cba5a3b0 DG |
4437 | /* Delegate to correct function for op type */ |
4438 | PUSHs(sv); | |
4439 | if (PL_op->op_type == OP_RKEYS || PL_op->op_type == OP_RVALUES) { | |
4440 | return (SvTYPE(sv) == SVt_PVHV) ? Perl_do_kv(aTHX) : Perl_pp_akeys(aTHX); | |
4441 | } | |
4442 | else { | |
d14578b8 KW |
4443 | return (SvTYPE(sv) == SVt_PVHV) |
4444 | ? Perl_pp_each(aTHX) | |
4445 | : Perl_pp_aeach(aTHX); | |
cba5a3b0 DG |
4446 | } |
4447 | } | |
4448 | ||
878d132a NC |
4449 | PP(pp_aeach) |
4450 | { | |
4451 | dVAR; | |
4452 | dSP; | |
502c6561 | 4453 | AV *array = MUTABLE_AV(POPs); |
878d132a | 4454 | const I32 gimme = GIMME_V; |
453d94a9 | 4455 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4456 | const IV current = (*iterp)++; |
4457 | ||
4458 | if (current > av_len(array)) { | |
4459 | *iterp = 0; | |
4460 | if (gimme == G_SCALAR) | |
4461 | RETPUSHUNDEF; | |
4462 | else | |
4463 | RETURN; | |
4464 | } | |
4465 | ||
4466 | EXTEND(SP, 2); | |
e1dccc0d | 4467 | mPUSHi(current); |
878d132a NC |
4468 | if (gimme == G_ARRAY) { |
4469 | SV **const element = av_fetch(array, current, 0); | |
4470 | PUSHs(element ? *element : &PL_sv_undef); | |
4471 | } | |
4472 | RETURN; | |
4473 | } | |
4474 | ||
4475 | PP(pp_akeys) | |
4476 | { | |
4477 | dVAR; | |
4478 | dSP; | |
502c6561 | 4479 | AV *array = MUTABLE_AV(POPs); |
878d132a NC |
4480 | const I32 gimme = GIMME_V; |
4481 | ||
4482 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4483 | ||
4484 | if (gimme == G_SCALAR) { | |
4485 | dTARGET; | |
4486 | PUSHi(av_len(array) + 1); | |
4487 | } | |
4488 | else if (gimme == G_ARRAY) { | |
4489 | IV n = Perl_av_len(aTHX_ array); | |
e1dccc0d | 4490 | IV i; |
878d132a NC |
4491 | |
4492 | EXTEND(SP, n + 1); | |
4493 | ||
cba5a3b0 | 4494 | if (PL_op->op_type == OP_AKEYS || PL_op->op_type == OP_RKEYS) { |
e1dccc0d | 4495 | for (i = 0; i <= n; i++) { |
878d132a NC |
4496 | mPUSHi(i); |
4497 | } | |
4498 | } | |
4499 | else { | |
4500 | for (i = 0; i <= n; i++) { | |
4501 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4502 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4503 | } | |
4504 | } | |
4505 | } | |
4506 | RETURN; | |
4507 | } | |
4508 | ||
79072805 LW |
4509 | /* Associative arrays. */ |
4510 | ||
4511 | PP(pp_each) | |
4512 | { | |
97aff369 | 4513 | dVAR; |
39644a26 | 4514 | dSP; |
85fbaab2 | 4515 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4516 | HE *entry; |
f54cb97a | 4517 | const I32 gimme = GIMME_V; |
8ec5e241 | 4518 | |
c07a80fd | 4519 | PUTBACK; |
c750a3ec | 4520 | /* might clobber stack_sp */ |
6d822dc4 | 4521 | entry = hv_iternext(hash); |
c07a80fd | 4522 | SPAGAIN; |
79072805 | 4523 | |
79072805 LW |
4524 | EXTEND(SP, 2); |
4525 | if (entry) { | |
1b6737cc | 4526 | SV* const sv = hv_iterkeysv(entry); |
574c8022 | 4527 | PUSHs(sv); /* won't clobber stack_sp */ |
54310121 | 4528 | if (gimme == G_ARRAY) { |
59af0135 | 4529 | SV *val; |
c07a80fd | 4530 | PUTBACK; |
c750a3ec | 4531 | /* might clobber stack_sp */ |
6d822dc4 | 4532 | val = hv_iterval(hash, entry); |
c07a80fd | 4533 | SPAGAIN; |
59af0135 | 4534 | PUSHs(val); |
79072805 | 4535 | } |
79072805 | 4536 | } |
54310121 | 4537 | else if (gimme == G_SCALAR) |
79072805 LW |
4538 | RETPUSHUNDEF; |
4539 | ||
4540 | RETURN; | |
4541 | } | |
4542 | ||
7332a6c4 VP |
4543 | STATIC OP * |
4544 | S_do_delete_local(pTHX) | |
79072805 | 4545 | { |
97aff369 | 4546 | dVAR; |
39644a26 | 4547 | dSP; |
f54cb97a | 4548 | const I32 gimme = GIMME_V; |
7332a6c4 VP |
4549 | const MAGIC *mg; |
4550 | HV *stash; | |
ca3f996a FC |
4551 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
4552 | SV *unsliced_keysv = sliced ? NULL : POPs; | |
4553 | SV * const osv = POPs; | |
eb578fdb | 4554 | SV **mark = sliced ? PL_stack_base + POPMARK : &unsliced_keysv-1; |
ca3f996a FC |
4555 | dORIGMARK; |
4556 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 4557 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
4558 | const bool can_preserve = SvCANEXISTDELETE(osv); |
4559 | const U32 type = SvTYPE(osv); | |
4560 | SV ** const end = sliced ? SP : &unsliced_keysv; | |
4561 | ||
4562 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 4563 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 4564 | while (++MARK <= end) { |
7332a6c4 VP |
4565 | SV * const keysv = *MARK; |
4566 | SV *sv = NULL; | |
4567 | bool preeminent = TRUE; | |
4568 | if (can_preserve) | |
4569 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4570 | if (tied) { | |
4571 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4572 | if (he) | |
4573 | sv = HeVAL(he); | |
4574 | else | |
4575 | preeminent = FALSE; | |
4576 | } | |
4577 | else { | |
4578 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
4579 | if (preeminent) |
4580 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4581 | } |
4582 | if (preeminent) { | |
be6064fd | 4583 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
4584 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
4585 | if (tied) { | |
4586 | *MARK = sv_mortalcopy(sv); | |
4587 | mg_clear(sv); | |
4588 | } else | |
4589 | *MARK = sv; | |
4590 | } | |
4591 | else { | |
4592 | SAVEHDELETE(hv, keysv); | |
4593 | *MARK = &PL_sv_undef; | |
4594 | } | |
4595 | } | |
ca3f996a FC |
4596 | } |
4597 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
4598 | if (PL_op->op_flags & OPf_SPECIAL) { |
4599 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 4600 | while (++MARK <= end) { |
c70927a6 | 4601 | SSize_t idx = SvIV(*MARK); |
7332a6c4 VP |
4602 | SV *sv = NULL; |
4603 | bool preeminent = TRUE; | |
4604 | if (can_preserve) | |
4605 | preeminent = av_exists(av, idx); | |
4606 | if (tied) { | |
4607 | SV **svp = av_fetch(av, idx, 1); | |
4608 | if (svp) | |
4609 | sv = *svp; | |
4610 | else | |
4611 | preeminent = FALSE; | |
4612 | } | |
4613 | else { | |
4614 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
4615 | if (preeminent) |
4616 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4617 | } |
4618 | if (preeminent) { | |
4619 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4620 | if (tied) { | |
4621 | *MARK = sv_mortalcopy(sv); | |
4622 | mg_clear(sv); | |
4623 | } else | |
4624 | *MARK = sv; | |
4625 | } | |
4626 | else { | |
4627 | SAVEADELETE(av, idx); | |
4628 | *MARK = &PL_sv_undef; | |
4629 | } | |
4630 | } | |
4631 | } | |
ca3f996a FC |
4632 | else |
4633 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4634 | } | |
4635 | else | |
7332a6c4 | 4636 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 4637 | if (sliced) { |
7332a6c4 VP |
4638 | if (gimme == G_VOID) |
4639 | SP = ORIGMARK; | |
4640 | else if (gimme == G_SCALAR) { | |
4641 | MARK = ORIGMARK; | |
4642 | if (SP > MARK) | |
4643 | *++MARK = *SP; | |
4644 | else | |
4645 | *++MARK = &PL_sv_undef; | |
4646 | SP = MARK; | |
4647 | } | |
4648 | } | |
ca3f996a FC |
4649 | else if (gimme != G_VOID) |
4650 | PUSHs(unsliced_keysv); | |
7332a6c4 VP |
4651 | |
4652 | RETURN; | |
4653 | } | |
4654 | ||
4655 | PP(pp_delete) | |
4656 | { | |
4657 | dVAR; | |
4658 | dSP; | |
4659 | I32 gimme; | |
4660 | I32 discard; | |
4661 | ||
4662 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4663 | return do_delete_local(); | |
4664 | ||
4665 | gimme = GIMME_V; | |
4666 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4667 | |
533c011a | 4668 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 4669 | dMARK; dORIGMARK; |
85fbaab2 | 4670 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4671 | const U32 hvtype = SvTYPE(hv); |
01020589 GS |
4672 | if (hvtype == SVt_PVHV) { /* hash element */ |
4673 | while (++MARK <= SP) { | |
1b6737cc | 4674 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
4675 | *MARK = sv ? sv : &PL_sv_undef; |
4676 | } | |
5f05dabc | 4677 | } |
6d822dc4 MS |
4678 | else if (hvtype == SVt_PVAV) { /* array element */ |
4679 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4680 | while (++MARK <= SP) { | |
502c6561 | 4681 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
6d822dc4 MS |
4682 | *MARK = sv ? sv : &PL_sv_undef; |
4683 | } | |
4684 | } | |
01020589 GS |
4685 | } |
4686 | else | |
4687 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4688 | if (discard) |
4689 | SP = ORIGMARK; | |
4690 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4691 | MARK = ORIGMARK; |
9111c9c0 DM |
4692 | if (SP > MARK) |
4693 | *++MARK = *SP; | |
4694 | else | |
4695 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4696 | SP = MARK; |
4697 | } | |
4698 | } | |
4699 | else { | |
4700 | SV *keysv = POPs; | |
85fbaab2 | 4701 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4702 | SV *sv = NULL; |
97fcbf96 MB |
4703 | if (SvTYPE(hv) == SVt_PVHV) |
4704 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4705 | else if (SvTYPE(hv) == SVt_PVAV) { |
4706 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4707 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4708 | else |
4709 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4710 | } |
97fcbf96 | 4711 | else |
cea2e8a9 | 4712 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4713 | if (!sv) |
3280af22 | 4714 | sv = &PL_sv_undef; |
54310121 | 4715 | if (!discard) |
4716 | PUSHs(sv); | |
79072805 | 4717 | } |
79072805 LW |
4718 | RETURN; |
4719 | } | |
4720 | ||
a0d0e21e | 4721 | PP(pp_exists) |
79072805 | 4722 | { |
97aff369 | 4723 | dVAR; |
39644a26 | 4724 | dSP; |
afebc493 GS |
4725 | SV *tmpsv; |
4726 | HV *hv; | |
4727 | ||
c7e88ff3 | 4728 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 4729 | GV *gv; |
0bd48802 | 4730 | SV * const sv = POPs; |
f2c0649b | 4731 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
4732 | if (cv) |
4733 | RETPUSHYES; | |
4734 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
4735 | RETPUSHYES; | |
4736 | RETPUSHNO; | |
4737 | } | |
4738 | tmpsv = POPs; | |
85fbaab2 | 4739 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 4740 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 4741 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 4742 | RETPUSHYES; |
ef54e1a4 JH |
4743 | } |
4744 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 4745 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 4746 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
4747 | RETPUSHYES; |
4748 | } | |
ef54e1a4 JH |
4749 | } |
4750 | else { | |
cea2e8a9 | 4751 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 4752 | } |
a0d0e21e LW |
4753 | RETPUSHNO; |
4754 | } | |
79072805 | 4755 | |
a0d0e21e LW |
4756 | PP(pp_hslice) |
4757 | { | |
97aff369 | 4758 | dVAR; dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4759 | HV * const hv = MUTABLE_HV(POPs); |
4760 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 4761 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 4762 | bool can_preserve = FALSE; |
79072805 | 4763 | |
eb85dfd3 DM |
4764 | if (localizing) { |
4765 | MAGIC *mg; | |
4766 | HV *stash; | |
4767 | ||
2c5f48c2 | 4768 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 4769 | can_preserve = TRUE; |
eb85dfd3 DM |
4770 | } |
4771 | ||
6d822dc4 | 4772 | while (++MARK <= SP) { |
1b6737cc | 4773 | SV * const keysv = *MARK; |
6d822dc4 MS |
4774 | SV **svp; |
4775 | HE *he; | |
d30e492c VP |
4776 | bool preeminent = TRUE; |
4777 | ||
4778 | if (localizing && can_preserve) { | |
4779 | /* If we can determine whether the element exist, | |
4780 | * try to preserve the existenceness of a tied hash | |
4781 | * element by using EXISTS and DELETE if possible. | |
4782 | * Fallback to FETCH and STORE otherwise. */ | |
4783 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 4784 | } |
eb85dfd3 | 4785 | |
6d822dc4 | 4786 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 4787 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 4788 | |
6d822dc4 | 4789 | if (lval) { |
746f6409 | 4790 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 4791 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
4792 | } |
4793 | if (localizing) { | |
7a2e501a | 4794 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 4795 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
4796 | else if (preeminent) |
4797 | save_helem_flags(hv, keysv, svp, | |
4798 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
4799 | else | |
4800 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
4801 | } |
4802 | } | |
746f6409 | 4803 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 4804 | } |
a0d0e21e LW |
4805 | if (GIMME != G_ARRAY) { |
4806 | MARK = ORIGMARK; | |
04ab2c87 | 4807 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 4808 | SP = MARK; |
79072805 | 4809 | } |
a0d0e21e LW |
4810 | RETURN; |
4811 | } | |
4812 | ||
5cae3edb RZ |
4813 | PP(pp_kvhslice) |
4814 | { | |
21671fea | 4815 | dVAR; dSP; dMARK; |
5cae3edb RZ |
4816 | HV * const hv = MUTABLE_HV(POPs); |
4817 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4818 | SSize_t items = SP - MARK; |
5cae3edb RZ |
4819 | |
4820 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4821 | const I32 flags = is_lvalue_sub(); | |
4822 | if (flags) { | |
4823 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4824 | /* diag_listed_as: Can't modify %s in %s */ |
5cae3edb RZ |
4825 | Perl_croak(aTHX_ "Can't modify key/value hash slice in list assignment"); |
4826 | lval = flags; | |
4827 | } | |
4828 | } | |
4829 | ||
4830 | MEXTEND(SP,items); | |
4831 | while (items > 1) { | |
4832 | *(MARK+items*2-1) = *(MARK+items); | |
4833 | items--; | |
4834 | } | |
4835 | items = SP-MARK; | |
4836 | SP += items; | |
4837 | ||
4838 | while (++MARK <= SP) { | |
4839 | SV * const keysv = *MARK; | |
4840 | SV **svp; | |
4841 | HE *he; | |
4842 | ||
4843 | he = hv_fetch_ent(hv, keysv, lval, 0); | |
4844 | svp = he ? &HeVAL(he) : NULL; | |
4845 | ||
4846 | if (lval) { | |
4847 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4848 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
4849 | } | |
4850 | *MARK = sv_mortalcopy(*MARK); | |
4851 | } | |
4852 | *++MARK = svp && *svp ? *svp : &PL_sv_undef; | |
4853 | } | |
4854 | if (GIMME != G_ARRAY) { | |
4855 | MARK = SP - items*2; | |
4856 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4857 | SP = MARK; | |
4858 | } | |
4859 | RETURN; | |
4860 | } | |
4861 | ||
a0d0e21e LW |
4862 | /* List operators. */ |
4863 | ||
4864 | PP(pp_list) | |
4865 | { | |
97aff369 | 4866 | dVAR; dSP; dMARK; |
a0d0e21e LW |
4867 | if (GIMME != G_ARRAY) { |
4868 | if (++MARK <= SP) | |
4869 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 4870 | else |
3280af22 | 4871 | *MARK = &PL_sv_undef; |
a0d0e21e | 4872 | SP = MARK; |
79072805 | 4873 | } |
a0d0e21e | 4874 | RETURN; |
79072805 LW |
4875 | } |
4876 | ||
a0d0e21e | 4877 | PP(pp_lslice) |
79072805 | 4878 | { |
97aff369 | 4879 | dVAR; |
39644a26 | 4880 | dSP; |
1b6737cc AL |
4881 | SV ** const lastrelem = PL_stack_sp; |
4882 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
4883 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 4884 | SV ** const firstrelem = lastlelem + 1; |
42e73ed0 | 4885 | I32 is_something_there = FALSE; |
706a6ebc | 4886 | const U8 mod = PL_op->op_flags & OPf_MOD; |
1b6737cc | 4887 | |
eb578fdb KW |
4888 | const I32 max = lastrelem - lastlelem; |
4889 | SV **lelem; | |
a0d0e21e LW |
4890 | |
4891 | if (GIMME != G_ARRAY) { | |
4ea561bc | 4892 | I32 ix = SvIV(*lastlelem); |
748a9306 LW |
4893 | if (ix < 0) |
4894 | ix += max; | |
a0d0e21e | 4895 | if (ix < 0 || ix >= max) |
3280af22 | 4896 | *firstlelem = &PL_sv_undef; |
a0d0e21e LW |
4897 | else |
4898 | *firstlelem = firstrelem[ix]; | |
4899 | SP = firstlelem; | |
4900 | RETURN; | |
4901 | } | |
4902 | ||
4903 | if (max == 0) { | |
4904 | SP = firstlelem - 1; | |
4905 | RETURN; | |
4906 | } | |
4907 | ||
4908 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 4909 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 4910 | if (ix < 0) |
a0d0e21e | 4911 | ix += max; |
c73bf8e3 HS |
4912 | if (ix < 0 || ix >= max) |
4913 | *lelem = &PL_sv_undef; | |
4914 | else { | |
4915 | is_something_there = TRUE; | |
4916 | if (!(*lelem = firstrelem[ix])) | |
3280af22 | 4917 | *lelem = &PL_sv_undef; |
706a6ebc FC |
4918 | else if (mod && SvPADTMP(*lelem) && !IS_PADGV(*lelem)) |
4919 | *lelem = firstrelem[ix] = sv_mortalcopy(*lelem); | |
748a9306 | 4920 | } |
79072805 | 4921 | } |
4633a7c4 LW |
4922 | if (is_something_there) |
4923 | SP = lastlelem; | |
4924 | else | |
4925 | SP = firstlelem - 1; | |
79072805 LW |
4926 | RETURN; |
4927 | } | |
4928 | ||
a0d0e21e LW |
4929 | PP(pp_anonlist) |
4930 | { | |
31476221 | 4931 | dVAR; dSP; dMARK; |
1b6737cc | 4932 | const I32 items = SP - MARK; |
ad64d0ec | 4933 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 4934 | SP = MARK; |
6e449a3a MHM |
4935 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
4936 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
4937 | RETURN; |
4938 | } | |
4939 | ||
4940 | PP(pp_anonhash) | |
79072805 | 4941 | { |
97aff369 | 4942 | dVAR; dSP; dMARK; dORIGMARK; |
67e67fd7 | 4943 | HV* const hv = newHV(); |
8d455b9f | 4944 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 4945 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 4946 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
4947 | |
4948 | while (MARK < SP) { | |
3ed356df FC |
4949 | SV * const key = |
4950 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
4951 | SV *val; | |
a0d0e21e | 4952 | if (MARK < SP) |
3ed356df FC |
4953 | { |
4954 | MARK++; | |
4955 | SvGETMAGIC(*MARK); | |
4956 | val = newSV(0); | |
4957 | sv_setsv(val, *MARK); | |
4958 | } | |
a2a5de95 | 4959 | else |
3ed356df | 4960 | { |
a2a5de95 | 4961 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
4962 | val = newSV(0); |
4963 | } | |
f12c7020 | 4964 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 4965 | } |
a0d0e21e | 4966 | SP = ORIGMARK; |
8d455b9f | 4967 | XPUSHs(retval); |
79072805 LW |
4968 | RETURN; |
4969 | } | |
4970 | ||
d4fc4415 FC |
4971 | static AV * |
4972 | S_deref_plain_array(pTHX_ AV *ary) | |
4973 | { | |
4974 | if (SvTYPE(ary) == SVt_PVAV) return ary; | |
d2d95e13 | 4975 | SvGETMAGIC((SV *)ary); |
d4fc4415 FC |
4976 | if (!SvROK(ary) || SvTYPE(SvRV(ary)) != SVt_PVAV) |
4977 | Perl_die(aTHX_ "Not an ARRAY reference"); | |
4978 | else if (SvOBJECT(SvRV(ary))) | |
4979 | Perl_die(aTHX_ "Not an unblessed ARRAY reference"); | |
4980 | return (AV *)SvRV(ary); | |
4981 | } | |
4982 | ||
4983 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
4984 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4985 | ({ \ | |
4986 | AV *aRrRay = ary; \ | |
4987 | SvTYPE(aRrRay) == SVt_PVAV \ | |
4988 | ? aRrRay \ | |
4989 | : S_deref_plain_array(aTHX_ aRrRay); \ | |
4990 | }) | |
4991 | #else | |
4992 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4993 | ( \ | |
3b0f6d32 | 4994 | PL_Sv = (SV *)(ary), \ |
d4fc4415 FC |
4995 | SvTYPE(PL_Sv) == SVt_PVAV \ |
4996 | ? (AV *)PL_Sv \ | |
3b0f6d32 | 4997 | : S_deref_plain_array(aTHX_ (AV *)PL_Sv) \ |
d4fc4415 FC |
4998 | ) |
4999 | #endif | |
5000 | ||
a0d0e21e | 5001 | PP(pp_splice) |
79072805 | 5002 | { |
27da23d5 | 5003 | dVAR; dSP; dMARK; dORIGMARK; |
5cd408a2 | 5004 | int num_args = (SP - MARK); |
eb578fdb KW |
5005 | AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
5006 | SV **src; | |
5007 | SV **dst; | |
c70927a6 FC |
5008 | SSize_t i; |
5009 | SSize_t offset; | |
5010 | SSize_t length; | |
5011 | SSize_t newlen; | |
5012 | SSize_t after; | |
5013 | SSize_t diff; | |
ad64d0ec | 5014 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5015 | |
1b6737cc | 5016 | if (mg) { |
3e0cb5de | 5017 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
5018 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
5019 | sp - mark); | |
93965878 | 5020 | } |
79072805 | 5021 | |
a0d0e21e | 5022 | SP++; |
79072805 | 5023 | |
a0d0e21e | 5024 | if (++MARK < SP) { |
4ea561bc | 5025 | offset = i = SvIV(*MARK); |
a0d0e21e | 5026 | if (offset < 0) |
93965878 | 5027 | offset += AvFILLp(ary) + 1; |
84902520 | 5028 | if (offset < 0) |
cea2e8a9 | 5029 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
5030 | if (++MARK < SP) { |
5031 | length = SvIVx(*MARK++); | |
48cdf507 GA |
5032 | if (length < 0) { |
5033 | length += AvFILLp(ary) - offset + 1; | |
5034 | if (length < 0) | |
5035 | length = 0; | |
5036 | } | |
79072805 LW |
5037 | } |
5038 | else | |
a0d0e21e | 5039 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 5040 | } |
a0d0e21e LW |
5041 | else { |
5042 | offset = 0; | |
5043 | length = AvMAX(ary) + 1; | |
5044 | } | |
8cbc2e3b | 5045 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
5046 | if (num_args > 2) |
5047 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 5048 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 5049 | } |
93965878 | 5050 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
5051 | if (after < 0) { /* not that much array */ |
5052 | length += after; /* offset+length now in array */ | |
5053 | after = 0; | |
5054 | if (!AvALLOC(ary)) | |
5055 | av_extend(ary, 0); | |
5056 | } | |
5057 | ||
5058 | /* At this point, MARK .. SP-1 is our new LIST */ | |
5059 | ||
5060 | newlen = SP - MARK; | |
5061 | diff = newlen - length; | |
13d7cbc1 GS |
5062 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
5063 | av_reify(ary); | |
a0d0e21e | 5064 | |
50528de0 WL |
5065 | /* make new elements SVs now: avoid problems if they're from the array */ |
5066 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 5067 | SV * const h = *dst; |
f2b990bf | 5068 | *dst++ = newSVsv(h); |
50528de0 WL |
5069 | } |
5070 | ||
a0d0e21e | 5071 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 5072 | SV **tmparyval = NULL; |
a0d0e21e | 5073 | if (newlen) { |
a02a5408 | 5074 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 5075 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 5076 | } |
a0d0e21e LW |
5077 | |
5078 | MARK = ORIGMARK + 1; | |
5079 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
31c61add | 5080 | const bool real = cBOOL(AvREAL(ary)); |
a0d0e21e | 5081 | MEXTEND(MARK, length); |
31c61add | 5082 | if (real) |
bbce6d69 | 5083 | EXTEND_MORTAL(length); |
31c61add FC |
5084 | for (i = 0, dst = MARK; i < length; i++) { |
5085 | if ((*dst = AvARRAY(ary)[i+offset])) { | |
5086 | if (real) | |
486ec47a | 5087 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5088 | } |
31c61add FC |
5089 | else |
5090 | *dst = &PL_sv_undef; | |
5091 | dst++; | |
a0d0e21e LW |
5092 | } |
5093 | MARK += length - 1; | |
79072805 | 5094 | } |
a0d0e21e LW |
5095 | else { |
5096 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5097 | if (AvREAL(ary)) { | |
d689ffdd | 5098 | sv_2mortal(*MARK); |
a0d0e21e LW |
5099 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5100 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5101 | } |
a0d0e21e | 5102 | } |
93965878 | 5103 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5104 | |
5105 | /* pull up or down? */ | |
5106 | ||
5107 | if (offset < after) { /* easier to pull up */ | |
5108 | if (offset) { /* esp. if nothing to pull */ | |
5109 | src = &AvARRAY(ary)[offset-1]; | |
5110 | dst = src - diff; /* diff is negative */ | |
5111 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5112 | *dst-- = *src--; | |
79072805 | 5113 | } |
a0d0e21e | 5114 | dst = AvARRAY(ary); |
9c6bc640 | 5115 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5116 | AvMAX(ary) += diff; |
5117 | } | |
5118 | else { | |
5119 | if (after) { /* anything to pull down? */ | |
5120 | src = AvARRAY(ary) + offset + length; | |
5121 | dst = src + diff; /* diff is negative */ | |
5122 | Move(src, dst, after, SV*); | |
79072805 | 5123 | } |
93965878 | 5124 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5125 | /* avoid later double free */ |
5126 | } | |
5127 | i = -diff; | |
5128 | while (i) | |
ce0d59fd | 5129 | dst[--i] = NULL; |
a0d0e21e LW |
5130 | |
5131 | if (newlen) { | |
50528de0 | 5132 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5133 | Safefree(tmparyval); |
5134 | } | |
5135 | } | |
5136 | else { /* no, expanding (or same) */ | |
d3961450 | 5137 | SV** tmparyval = NULL; |
a0d0e21e | 5138 | if (length) { |
a02a5408 | 5139 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5140 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5141 | } | |
5142 | ||
5143 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5144 | /* push up or down? */ |
a0d0e21e LW |
5145 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5146 | if (offset) { | |
5147 | src = AvARRAY(ary); | |
5148 | dst = src - diff; | |
5149 | Move(src, dst, offset, SV*); | |
79072805 | 5150 | } |
9c6bc640 | 5151 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5152 | AvMAX(ary) += diff; |
93965878 | 5153 | AvFILLp(ary) += diff; |
79072805 LW |
5154 | } |
5155 | else { | |
93965878 NIS |
5156 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5157 | av_extend(ary, AvFILLp(ary) + diff); | |
5158 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5159 | |
5160 | if (after) { | |
93965878 | 5161 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5162 | src = dst - diff; |
5163 | for (i = after; i; i--) { | |
5164 | *dst-- = *src--; | |
5165 | } | |
79072805 LW |
5166 | } |
5167 | } | |
a0d0e21e LW |
5168 | } |
5169 | ||
50528de0 WL |
5170 | if (newlen) { |
5171 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5172 | } |
50528de0 | 5173 | |
a0d0e21e LW |
5174 | MARK = ORIGMARK + 1; |
5175 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
5176 | if (length) { | |
31c61add FC |
5177 | const bool real = cBOOL(AvREAL(ary)); |
5178 | if (real) | |
bbce6d69 | 5179 | EXTEND_MORTAL(length); |
31c61add FC |
5180 | for (i = 0, dst = MARK; i < length; i++) { |
5181 | if ((*dst = tmparyval[i])) { | |
5182 | if (real) | |
486ec47a | 5183 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5184 | } |
31c61add FC |
5185 | else *dst = &PL_sv_undef; |
5186 | dst++; | |
79072805 LW |
5187 | } |
5188 | } | |
a0d0e21e LW |
5189 | MARK += length - 1; |
5190 | } | |
5191 | else if (length--) { | |
5192 | *MARK = tmparyval[length]; | |
5193 | if (AvREAL(ary)) { | |
d689ffdd | 5194 | sv_2mortal(*MARK); |
a0d0e21e LW |
5195 | while (length-- > 0) |
5196 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5197 | } |
79072805 | 5198 | } |
a0d0e21e | 5199 | else |
3280af22 | 5200 | *MARK = &PL_sv_undef; |
d3961450 | 5201 | Safefree(tmparyval); |
79072805 | 5202 | } |
474af990 FR |
5203 | |
5204 | if (SvMAGICAL(ary)) | |
5205 | mg_set(MUTABLE_SV(ary)); | |
5206 | ||
a0d0e21e | 5207 | SP = MARK; |
79072805 LW |
5208 | RETURN; |
5209 | } | |
5210 | ||
a0d0e21e | 5211 | PP(pp_push) |
79072805 | 5212 | { |
27da23d5 | 5213 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
eb578fdb | 5214 | AV * const ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5215 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5216 | |
1b6737cc | 5217 | if (mg) { |
ad64d0ec | 5218 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5219 | PUSHMARK(MARK); |
5220 | PUTBACK; | |
d343c3ef | 5221 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5222 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5223 | LEAVE_with_name("call_PUSH"); |
93965878 | 5224 | SPAGAIN; |
93965878 | 5225 | } |
a60c0954 | 5226 | else { |
cb077ed2 | 5227 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5228 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5229 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5230 | SV *sv; |
5231 | if (*MARK) SvGETMAGIC(*MARK); | |
5232 | sv = newSV(0); | |
a60c0954 | 5233 | if (*MARK) |
3ed356df | 5234 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5235 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5236 | } |
354b0578 | 5237 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5238 | mg_set(MUTABLE_SV(ary)); |
89c14e2e BB |
5239 | |
5240 | PL_delaymagic = 0; | |
6eeabd23 VP |
5241 | } |
5242 | SP = ORIGMARK; | |
5243 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5244 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5245 | } |
79072805 LW |
5246 | RETURN; |
5247 | } | |
5248 | ||
a0d0e21e | 5249 | PP(pp_shift) |
79072805 | 5250 | { |
97aff369 | 5251 | dVAR; |
39644a26 | 5252 | dSP; |
538f5756 | 5253 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
d4fc4415 | 5254 | ? MUTABLE_AV(GvAV(PL_defgv)) : DEREF_PLAIN_ARRAY(MUTABLE_AV(POPs)); |
789b4bc9 | 5255 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5256 | EXTEND(SP, 1); |
c2b4a044 | 5257 | assert (sv); |
d689ffdd | 5258 | if (AvREAL(av)) |
a0d0e21e LW |
5259 | (void)sv_2mortal(sv); |
5260 | PUSHs(sv); | |
79072805 | 5261 | RETURN; |
79072805 LW |
5262 | } |
5263 | ||
a0d0e21e | 5264 | PP(pp_unshift) |
79072805 | 5265 | { |
27da23d5 | 5266 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
eb578fdb | 5267 | AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5268 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5269 | |
1b6737cc | 5270 | if (mg) { |
ad64d0ec | 5271 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5272 | PUSHMARK(MARK); |
93965878 | 5273 | PUTBACK; |
d343c3ef | 5274 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5275 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5276 | LEAVE_with_name("call_UNSHIFT"); |
93965878 | 5277 | SPAGAIN; |
93965878 | 5278 | } |
a60c0954 | 5279 | else { |
c70927a6 | 5280 | SSize_t i = 0; |
a60c0954 NIS |
5281 | av_unshift(ary, SP - MARK); |
5282 | while (MARK < SP) { | |
1b6737cc | 5283 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5284 | (void)av_store(ary, i++, sv); |
5285 | } | |
79072805 | 5286 | } |
a0d0e21e | 5287 | SP = ORIGMARK; |
6eeabd23 | 5288 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5289 | PUSHi( AvFILL(ary) + 1 ); |
5290 | } | |
79072805 | 5291 | RETURN; |
79072805 LW |
5292 | } |
5293 | ||
a0d0e21e | 5294 | PP(pp_reverse) |
79072805 | 5295 | { |
97aff369 | 5296 | dVAR; dSP; dMARK; |
79072805 | 5297 | |
a0d0e21e | 5298 | if (GIMME == G_ARRAY) { |
484c818f VP |
5299 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5300 | AV *av; | |
5301 | ||
5302 | /* See pp_sort() */ | |
5303 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5304 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5305 | av = MUTABLE_AV((*SP)); | |
5306 | /* In-place reversing only happens in void context for the array | |
5307 | * assignment. We don't need to push anything on the stack. */ | |
5308 | SP = MARK; | |
5309 | ||
5310 | if (SvMAGICAL(av)) { | |
c70927a6 | 5311 | SSize_t i, j; |
eb578fdb | 5312 | SV *tmp = sv_newmortal(); |
484c818f VP |
5313 | /* For SvCANEXISTDELETE */ |
5314 | HV *stash; | |
5315 | const MAGIC *mg; | |
5316 | bool can_preserve = SvCANEXISTDELETE(av); | |
5317 | ||
5318 | for (i = 0, j = av_len(av); i < j; ++i, --j) { | |
eb578fdb | 5319 | SV *begin, *end; |
484c818f VP |
5320 | |
5321 | if (can_preserve) { | |
5322 | if (!av_exists(av, i)) { | |
5323 | if (av_exists(av, j)) { | |
eb578fdb | 5324 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5325 | begin = *av_fetch(av, i, TRUE); |
5326 | sv_setsv_mg(begin, sv); | |
5327 | } | |
5328 | continue; | |
5329 | } | |
5330 | else if (!av_exists(av, j)) { | |
eb578fdb | 5331 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5332 | end = *av_fetch(av, j, TRUE); |
5333 | sv_setsv_mg(end, sv); | |
5334 | continue; | |
5335 | } | |
5336 | } | |
5337 | ||
5338 | begin = *av_fetch(av, i, TRUE); | |
5339 | end = *av_fetch(av, j, TRUE); | |
5340 | sv_setsv(tmp, begin); | |
5341 | sv_setsv_mg(begin, end); | |
5342 | sv_setsv_mg(end, tmp); | |
5343 | } | |
5344 | } | |
5345 | else { | |
5346 | SV **begin = AvARRAY(av); | |
484c818f | 5347 | |
95a26d8e VP |
5348 | if (begin) { |
5349 | SV **end = begin + AvFILLp(av); | |
5350 | ||
5351 | while (begin < end) { | |
eb578fdb | 5352 | SV * const tmp = *begin; |
95a26d8e VP |
5353 | *begin++ = *end; |
5354 | *end-- = tmp; | |
5355 | } | |
484c818f VP |
5356 | } |
5357 | } | |
5358 | } | |
5359 | else { | |
5360 | SV **oldsp = SP; | |
5361 | MARK++; | |
5362 | while (MARK < SP) { | |
eb578fdb | 5363 | SV * const tmp = *MARK; |
484c818f VP |
5364 | *MARK++ = *SP; |
5365 | *SP-- = tmp; | |
5366 | } | |
5367 | /* safe as long as stack cannot get extended in the above */ | |
5368 | SP = oldsp; | |
a0d0e21e | 5369 | } |
79072805 LW |
5370 | } |
5371 | else { | |
eb578fdb KW |
5372 | char *up; |
5373 | char *down; | |
5374 | I32 tmp; | |
a0d0e21e LW |
5375 | dTARGET; |
5376 | STRLEN len; | |
79072805 | 5377 | |
7e2040f0 | 5378 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5379 | if (SP - MARK > 1) |
3280af22 | 5380 | do_join(TARG, &PL_sv_no, MARK, SP); |
1e21d011 | 5381 | else { |
789bd863 | 5382 | sv_setsv(TARG, SP > MARK ? *SP : find_rundefsv()); |
1e21d011 B |
5383 | } |
5384 | ||
a0d0e21e LW |
5385 | up = SvPV_force(TARG, len); |
5386 | if (len > 1) { | |
7e2040f0 | 5387 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5388 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5389 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5390 | while (s < send) { |
d742c382 | 5391 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5392 | s++; |
5393 | continue; | |
5394 | } | |
5395 | else { | |
4b88fb76 | 5396 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5397 | break; |
dfe13c55 | 5398 | up = (char*)s; |
a0ed51b3 | 5399 | s += UTF8SKIP(s); |
dfe13c55 | 5400 | down = (char*)(s - 1); |
a0dbb045 | 5401 | /* reverse this character */ |
a0ed51b3 LW |
5402 | while (down > up) { |
5403 | tmp = *up; | |
5404 | *up++ = *down; | |
eb160463 | 5405 | *down-- = (char)tmp; |
a0ed51b3 LW |
5406 | } |
5407 | } | |
5408 | } | |
5409 | up = SvPVX(TARG); | |
5410 | } | |
a0d0e21e LW |
5411 | down = SvPVX(TARG) + len - 1; |
5412 | while (down > up) { | |
5413 | tmp = *up; | |
5414 | *up++ = *down; | |
eb160463 | 5415 | *down-- = (char)tmp; |
a0d0e21e | 5416 | } |
3aa33fe5 | 5417 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5418 | } |
a0d0e21e LW |
5419 | SP = MARK + 1; |
5420 | SETTARG; | |
79072805 | 5421 | } |
a0d0e21e | 5422 | RETURN; |
79072805 LW |
5423 | } |
5424 | ||
a0d0e21e | 5425 | PP(pp_split) |
79072805 | 5426 | { |
27da23d5 | 5427 | dVAR; dSP; dTARG; |
a0d0e21e | 5428 | AV *ary; |
eb578fdb | 5429 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5430 | SV * const sv = POPs; |
a0d0e21e | 5431 | STRLEN len; |
eb578fdb | 5432 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5433 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 5434 | const char *strend = s + len; |
eb578fdb KW |
5435 | PMOP *pm; |
5436 | REGEXP *rx; | |
5437 | SV *dstr; | |
5438 | const char *m; | |
c70927a6 | 5439 | SSize_t iters = 0; |
d14578b8 KW |
5440 | const STRLEN slen = do_utf8 |
5441 | ? utf8_length((U8*)s, (U8*)strend) | |
5442 | : (STRLEN)(strend - s); | |
c70927a6 | 5443 | SSize_t maxiters = slen + 10; |
c1a7495a | 5444 | I32 trailing_empty = 0; |
727b7506 | 5445 | const char *orig; |
1b6737cc | 5446 | const I32 origlimit = limit; |
a0d0e21e LW |
5447 | I32 realarray = 0; |
5448 | I32 base; | |
f54cb97a | 5449 | const I32 gimme = GIMME_V; |
941446f6 | 5450 | bool gimme_scalar; |
f54cb97a | 5451 | const I32 oldsave = PL_savestack_ix; |
437d3b4e | 5452 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5453 | bool multiline = 0; |
b37c2d43 | 5454 | MAGIC *mg = NULL; |
79072805 | 5455 | |
44a8e56a | 5456 | #ifdef DEBUGGING |
5457 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
5458 | #else | |
5459 | pm = (PMOP*)POPs; | |
5460 | #endif | |
a0d0e21e | 5461 | if (!pm || !s) |
5637ef5b | 5462 | DIE(aTHX_ "panic: pp_split, pm=%p, s=%p", pm, s); |
aaa362c4 | 5463 | rx = PM_GETRE(pm); |
bbce6d69 | 5464 | |
a62b1201 | 5465 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 5466 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5467 | |
971a9dd3 | 5468 | #ifdef USE_ITHREADS |
20e98b0f | 5469 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
159b6efe | 5470 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
20e98b0f | 5471 | } |
971a9dd3 | 5472 | #else |
20e98b0f NC |
5473 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
5474 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
971a9dd3 | 5475 | } |
20e98b0f | 5476 | #endif |
79072805 | 5477 | else |
7d49f689 | 5478 | ary = NULL; |
bcea25a7 | 5479 | if (ary) { |
a0d0e21e | 5480 | realarray = 1; |
8ec5e241 | 5481 | PUTBACK; |
a0d0e21e LW |
5482 | av_extend(ary,0); |
5483 | av_clear(ary); | |
8ec5e241 | 5484 | SPAGAIN; |
ad64d0ec | 5485 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5486 | PUSHMARK(SP); |
ad64d0ec | 5487 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5488 | } |
5489 | else { | |
1c0b011c | 5490 | if (!AvREAL(ary)) { |
1b6737cc | 5491 | I32 i; |
1c0b011c | 5492 | AvREAL_on(ary); |
abff13bb | 5493 | AvREIFY_off(ary); |
1c0b011c | 5494 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 5495 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5496 | } |
5497 | /* temporarily switch stacks */ | |
8b7059b1 | 5498 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5499 | make_mortal = 0; |
1c0b011c | 5500 | } |
79072805 | 5501 | } |
3280af22 | 5502 | base = SP - PL_stack_base; |
a0d0e21e | 5503 | orig = s; |
dbc200c5 | 5504 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 5505 | if (do_utf8) { |
76a77b1b | 5506 | while (isSPACE_utf8(s)) |
613f191e TS |
5507 | s += UTF8SKIP(s); |
5508 | } | |
a62b1201 | 5509 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
bbce6d69 | 5510 | while (isSPACE_LC(*s)) |
5511 | s++; | |
5512 | } | |
5513 | else { | |
5514 | while (isSPACE(*s)) | |
5515 | s++; | |
5516 | } | |
a0d0e21e | 5517 | } |
73134a2e | 5518 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5519 | multiline = 1; |
c07a80fd | 5520 | } |
5521 | ||
941446f6 FC |
5522 | gimme_scalar = gimme == G_SCALAR && !ary; |
5523 | ||
a0d0e21e LW |
5524 | if (!limit) |
5525 | limit = maxiters + 2; | |
dbc200c5 | 5526 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5527 | while (--limit) { |
bbce6d69 | 5528 | m = s; |
8727f688 YO |
5529 | /* this one uses 'm' and is a negative test */ |
5530 | if (do_utf8) { | |
76a77b1b | 5531 | while (m < strend && ! isSPACE_utf8(m) ) { |
613f191e | 5532 | const int t = UTF8SKIP(m); |
76a77b1b | 5533 | /* isSPACE_utf8 returns FALSE for malform utf8 */ |
613f191e TS |
5534 | if (strend - m < t) |
5535 | m = strend; | |
5536 | else | |
5537 | m += t; | |
5538 | } | |
a62b1201 | 5539 | } |
d14578b8 KW |
5540 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5541 | { | |
8727f688 YO |
5542 | while (m < strend && !isSPACE_LC(*m)) |
5543 | ++m; | |
5544 | } else { | |
5545 | while (m < strend && !isSPACE(*m)) | |
5546 | ++m; | |
5547 | } | |
a0d0e21e LW |
5548 | if (m >= strend) |
5549 | break; | |
bbce6d69 | 5550 | |
c1a7495a BB |
5551 | if (gimme_scalar) { |
5552 | iters++; | |
5553 | if (m-s == 0) | |
5554 | trailing_empty++; | |
5555 | else | |
5556 | trailing_empty = 0; | |
5557 | } else { | |
5558 | dstr = newSVpvn_flags(s, m-s, | |
5559 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5560 | XPUSHs(dstr); | |
5561 | } | |
bbce6d69 | 5562 | |
613f191e TS |
5563 | /* skip the whitespace found last */ |
5564 | if (do_utf8) | |
5565 | s = m + UTF8SKIP(m); | |
5566 | else | |
5567 | s = m + 1; | |
5568 | ||
8727f688 YO |
5569 | /* this one uses 's' and is a positive test */ |
5570 | if (do_utf8) { | |
76a77b1b | 5571 | while (s < strend && isSPACE_utf8(s) ) |
8727f688 | 5572 | s += UTF8SKIP(s); |
a62b1201 | 5573 | } |
d14578b8 KW |
5574 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5575 | { | |
8727f688 YO |
5576 | while (s < strend && isSPACE_LC(*s)) |
5577 | ++s; | |
5578 | } else { | |
5579 | while (s < strend && isSPACE(*s)) | |
5580 | ++s; | |
5581 | } | |
79072805 LW |
5582 | } |
5583 | } | |
07bc277f | 5584 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5585 | while (--limit) { |
a6e20a40 AL |
5586 | for (m = s; m < strend && *m != '\n'; m++) |
5587 | ; | |
a0d0e21e LW |
5588 | m++; |
5589 | if (m >= strend) | |
5590 | break; | |
c1a7495a BB |
5591 | |
5592 | if (gimme_scalar) { | |
5593 | iters++; | |
5594 | if (m-s == 0) | |
5595 | trailing_empty++; | |
5596 | else | |
5597 | trailing_empty = 0; | |
5598 | } else { | |
5599 | dstr = newSVpvn_flags(s, m-s, | |
5600 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5601 | XPUSHs(dstr); | |
5602 | } | |
a0d0e21e LW |
5603 | s = m; |
5604 | } | |
5605 | } | |
07bc277f | 5606 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5607 | /* |
5608 | Pre-extend the stack, either the number of bytes or | |
5609 | characters in the string or a limited amount, triggered by: | |
5610 | ||
5611 | my ($x, $y) = split //, $str; | |
5612 | or | |
5613 | split //, $str, $i; | |
5614 | */ | |
c1a7495a BB |
5615 | if (!gimme_scalar) { |
5616 | const U32 items = limit - 1; | |
5617 | if (items < slen) | |
5618 | EXTEND(SP, items); | |
5619 | else | |
5620 | EXTEND(SP, slen); | |
5621 | } | |
640f820d | 5622 | |
e9515b0f AB |
5623 | if (do_utf8) { |
5624 | while (--limit) { | |
5625 | /* keep track of how many bytes we skip over */ | |
5626 | m = s; | |
640f820d | 5627 | s += UTF8SKIP(s); |
c1a7495a BB |
5628 | if (gimme_scalar) { |
5629 | iters++; | |
5630 | if (s-m == 0) | |
5631 | trailing_empty++; | |
5632 | else | |
5633 | trailing_empty = 0; | |
5634 | } else { | |
5635 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5636 | |
c1a7495a BB |
5637 | PUSHs(dstr); |
5638 | } | |
640f820d | 5639 | |
e9515b0f AB |
5640 | if (s >= strend) |
5641 | break; | |
5642 | } | |
5643 | } else { | |
5644 | while (--limit) { | |
c1a7495a BB |
5645 | if (gimme_scalar) { |
5646 | iters++; | |
5647 | } else { | |
5648 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5649 | |
e9515b0f | 5650 | |
c1a7495a BB |
5651 | if (make_mortal) |
5652 | sv_2mortal(dstr); | |
640f820d | 5653 | |
c1a7495a BB |
5654 | PUSHs(dstr); |
5655 | } | |
5656 | ||
5657 | s++; | |
e9515b0f AB |
5658 | |
5659 | if (s >= strend) | |
5660 | break; | |
5661 | } | |
640f820d AB |
5662 | } |
5663 | } | |
3c8556c3 | 5664 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5665 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5666 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
5667 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
5668 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
f9f4320a | 5669 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5670 | |
07bc277f | 5671 | len = RX_MINLENRET(rx); |
3c8556c3 | 5672 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5673 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5674 | while (--limit) { |
a6e20a40 AL |
5675 | for (m = s; m < strend && *m != c; m++) |
5676 | ; | |
a0d0e21e LW |
5677 | if (m >= strend) |
5678 | break; | |
c1a7495a BB |
5679 | if (gimme_scalar) { |
5680 | iters++; | |
5681 | if (m-s == 0) | |
5682 | trailing_empty++; | |
5683 | else | |
5684 | trailing_empty = 0; | |
5685 | } else { | |
5686 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5687 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5688 | XPUSHs(dstr); |
5689 | } | |
93f04dac JH |
5690 | /* The rx->minlen is in characters but we want to step |
5691 | * s ahead by bytes. */ | |
1aa99e6b IH |
5692 | if (do_utf8) |
5693 | s = (char*)utf8_hop((U8*)m, len); | |
5694 | else | |
5695 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5696 | } |
5697 | } | |
5698 | else { | |
a0d0e21e | 5699 | while (s < strend && --limit && |
f722798b | 5700 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5701 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5702 | { |
c1a7495a BB |
5703 | if (gimme_scalar) { |
5704 | iters++; | |
5705 | if (m-s == 0) | |
5706 | trailing_empty++; | |
5707 | else | |
5708 | trailing_empty = 0; | |
5709 | } else { | |
5710 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5711 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5712 | XPUSHs(dstr); |
5713 | } | |
93f04dac JH |
5714 | /* The rx->minlen is in characters but we want to step |
5715 | * s ahead by bytes. */ | |
1aa99e6b IH |
5716 | if (do_utf8) |
5717 | s = (char*)utf8_hop((U8*)m, len); | |
5718 | else | |
5719 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 5720 | } |
463ee0b2 | 5721 | } |
463ee0b2 | 5722 | } |
a0d0e21e | 5723 | else { |
07bc277f | 5724 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 5725 | while (s < strend && --limit) |
bbce6d69 | 5726 | { |
1b6737cc | 5727 | I32 rex_return; |
080c2dec | 5728 | PUTBACK; |
d14578b8 | 5729 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 5730 | sv, NULL, 0); |
080c2dec | 5731 | SPAGAIN; |
1b6737cc | 5732 | if (rex_return == 0) |
080c2dec | 5733 | break; |
d9f97599 | 5734 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
5735 | /* we never pass the REXEC_COPY_STR flag, so it should |
5736 | * never get copied */ | |
5737 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 5738 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
5739 | |
5740 | if (gimme_scalar) { | |
5741 | iters++; | |
5742 | if (m-s == 0) | |
5743 | trailing_empty++; | |
5744 | else | |
5745 | trailing_empty = 0; | |
5746 | } else { | |
5747 | dstr = newSVpvn_flags(s, m-s, | |
5748 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5749 | XPUSHs(dstr); | |
5750 | } | |
07bc277f | 5751 | if (RX_NPARENS(rx)) { |
1b6737cc | 5752 | I32 i; |
07bc277f NC |
5753 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
5754 | s = RX_OFFS(rx)[i].start + orig; | |
5755 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
5756 | |
5757 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
5758 | parens that didn't match -- they should be set to | |
5759 | undef, not the empty string */ | |
c1a7495a BB |
5760 | if (gimme_scalar) { |
5761 | iters++; | |
5762 | if (m-s == 0) | |
5763 | trailing_empty++; | |
5764 | else | |
5765 | trailing_empty = 0; | |
5766 | } else { | |
5767 | if (m >= orig && s >= orig) { | |
5768 | dstr = newSVpvn_flags(s, m-s, | |
5769 | (do_utf8 ? SVf_UTF8 : 0) | |
5770 | | make_mortal); | |
5771 | } | |
5772 | else | |
5773 | dstr = &PL_sv_undef; /* undef, not "" */ | |
5774 | XPUSHs(dstr); | |
748a9306 | 5775 | } |
c1a7495a | 5776 | |
a0d0e21e LW |
5777 | } |
5778 | } | |
07bc277f | 5779 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 5780 | } |
79072805 | 5781 | } |
8ec5e241 | 5782 | |
c1a7495a BB |
5783 | if (!gimme_scalar) { |
5784 | iters = (SP - PL_stack_base) - base; | |
5785 | } | |
a0d0e21e | 5786 | if (iters > maxiters) |
cea2e8a9 | 5787 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 5788 | |
a0d0e21e LW |
5789 | /* keep field after final delim? */ |
5790 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
5791 | if (!gimme_scalar) { |
5792 | const STRLEN l = strend - s; | |
5793 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5794 | XPUSHs(dstr); | |
5795 | } | |
a0d0e21e | 5796 | iters++; |
79072805 | 5797 | } |
a0d0e21e | 5798 | else if (!origlimit) { |
c1a7495a BB |
5799 | if (gimme_scalar) { |
5800 | iters -= trailing_empty; | |
5801 | } else { | |
5802 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
5803 | if (TOPs && !make_mortal) | |
5804 | sv_2mortal(TOPs); | |
5805 | *SP-- = &PL_sv_undef; | |
5806 | iters--; | |
5807 | } | |
89900bd3 | 5808 | } |
a0d0e21e | 5809 | } |
8ec5e241 | 5810 | |
8b7059b1 DM |
5811 | PUTBACK; |
5812 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
5813 | SPAGAIN; | |
a0d0e21e | 5814 | if (realarray) { |
8ec5e241 | 5815 | if (!mg) { |
1c0b011c NIS |
5816 | if (SvSMAGICAL(ary)) { |
5817 | PUTBACK; | |
ad64d0ec | 5818 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
5819 | SPAGAIN; |
5820 | } | |
5821 | if (gimme == G_ARRAY) { | |
5822 | EXTEND(SP, iters); | |
5823 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
5824 | SP += iters; | |
5825 | RETURN; | |
5826 | } | |
8ec5e241 | 5827 | } |
1c0b011c | 5828 | else { |
fb73857a | 5829 | PUTBACK; |
d343c3ef | 5830 | ENTER_with_name("call_PUSH"); |
36925d9e | 5831 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5832 | LEAVE_with_name("call_PUSH"); |
fb73857a | 5833 | SPAGAIN; |
8ec5e241 | 5834 | if (gimme == G_ARRAY) { |
c70927a6 | 5835 | SSize_t i; |
8ec5e241 NIS |
5836 | /* EXTEND should not be needed - we just popped them */ |
5837 | EXTEND(SP, iters); | |
5838 | for (i=0; i < iters; i++) { | |
5839 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 5840 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 5841 | } |
1c0b011c NIS |
5842 | RETURN; |
5843 | } | |
a0d0e21e LW |
5844 | } |
5845 | } | |
5846 | else { | |
5847 | if (gimme == G_ARRAY) | |
5848 | RETURN; | |
5849 | } | |
7f18b612 YST |
5850 | |
5851 | GETTARGET; | |
5852 | PUSHi(iters); | |
5853 | RETURN; | |
79072805 | 5854 | } |
85e6fe83 | 5855 | |
c5917253 NC |
5856 | PP(pp_once) |
5857 | { | |
5858 | dSP; | |
5859 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
5860 | ||
5861 | if (SvPADSTALE(sv)) { | |
5862 | /* First time. */ | |
5863 | SvPADSTALE_off(sv); | |
5864 | RETURNOP(cLOGOP->op_other); | |
5865 | } | |
5866 | RETURNOP(cLOGOP->op_next); | |
5867 | } | |
5868 | ||
c0329465 MB |
5869 | PP(pp_lock) |
5870 | { | |
97aff369 | 5871 | dVAR; |
39644a26 | 5872 | dSP; |
c0329465 | 5873 | dTOPss; |
e55aaa0e | 5874 | SV *retsv = sv; |
68795e93 | 5875 | SvLOCK(sv); |
f79aa60b FC |
5876 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
5877 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
5878 | retsv = refto(retsv); |
5879 | } | |
5880 | SETs(retsv); | |
c0329465 MB |
5881 | RETURN; |
5882 | } | |
a863c7d1 | 5883 | |
65bca31a NC |
5884 | |
5885 | PP(unimplemented_op) | |
5886 | { | |
97aff369 | 5887 | dVAR; |
361ed549 NC |
5888 | const Optype op_type = PL_op->op_type; |
5889 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
5890 | with out of range op numbers - it only "special" cases op_custom. | |
5891 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
5892 | if we get here for a custom op then that means that the custom op didn't | |
5893 | have an implementation. Given that OP_NAME() looks up the custom op | |
5894 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
5895 | registers &PL_unimplemented_op as the address of their custom op. | |
5896 | NULL doesn't generate a useful error message. "custom" does. */ | |
5897 | const char *const name = op_type >= OP_max | |
5898 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
5899 | if(OP_IS_SOCKET(op_type)) |
5900 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 5901 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
5902 | } |
5903 | ||
deb8a388 FC |
5904 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
5905 | PP(pp_coreargs) | |
5906 | { | |
5907 | dSP; | |
7fa5bd9b | 5908 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 5909 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 5910 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
5911 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
5912 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 5913 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 5914 | bool seen_question = 0; |
7fa5bd9b | 5915 | const char *err = NULL; |
3e6568b4 | 5916 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 5917 | |
46e00a91 FC |
5918 | /* Count how many args there are first, to get some idea how far to |
5919 | extend the stack. */ | |
7fa5bd9b | 5920 | while (oa) { |
bf0571fd | 5921 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 5922 | maxargs++; |
46e00a91 FC |
5923 | if (oa & OA_OPTIONAL) seen_question = 1; |
5924 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
5925 | oa >>= 4; |
5926 | } | |
5927 | ||
5928 | if(numargs < minargs) err = "Not enough"; | |
5929 | else if(numargs > maxargs) err = "Too many"; | |
5930 | if (err) | |
5931 | /* diag_listed_as: Too many arguments for %s */ | |
5932 | Perl_croak(aTHX_ | |
5933 | "%s arguments for %s", err, | |
2a90c7c6 | 5934 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
5935 | ); |
5936 | ||
5937 | /* Reset the stack pointer. Without this, we end up returning our own | |
5938 | arguments in list context, in addition to the values we are supposed | |
5939 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 5940 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b FC |
5941 | nextstate. */ |
5942 | SP = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; | |
5943 | ||
46e00a91 FC |
5944 | if(!maxargs) RETURN; |
5945 | ||
bf0571fd FC |
5946 | /* We do this here, rather than with a separate pushmark op, as it has |
5947 | to come in between two things this function does (stack reset and | |
5948 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 5949 | if (pushmark) { |
bf0571fd FC |
5950 | PUTBACK; |
5951 | (void)Perl_pp_pushmark(aTHX); | |
5952 | } | |
5953 | ||
5954 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 5955 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
5956 | |
5957 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 5958 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 5959 | whicharg++; |
46e00a91 FC |
5960 | switch (oa & 7) { |
5961 | case OA_SCALAR: | |
1efec5ed | 5962 | try_defsv: |
d6d78e19 | 5963 | if (!numargs && defgv && whicharg == minargs + 1) { |
d6d78e19 | 5964 | PUSHs(find_rundefsv2( |
db4cf31d | 5965 | find_runcv_where(FIND_RUNCV_level_eq, 1, NULL), |
b4b0692a | 5966 | cxstack[cxstack_ix].blk_oldcop->cop_seq |
d6d78e19 FC |
5967 | )); |
5968 | } | |
5969 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 5970 | break; |
bf0571fd FC |
5971 | case OA_LIST: |
5972 | while (numargs--) { | |
5973 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
5974 | svp++; | |
5975 | } | |
5976 | RETURN; | |
19c481f4 FC |
5977 | case OA_HVREF: |
5978 | if (!svp || !*svp || !SvROK(*svp) | |
5979 | || SvTYPE(SvRV(*svp)) != SVt_PVHV) | |
5980 | DIE(aTHX_ | |
5981 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
5982 | "Type of arg %d to &CORE::%s must be hash reference", | |
5983 | whicharg, OP_DESC(PL_op->op_next) | |
5984 | ); | |
5985 | PUSHs(SvRV(*svp)); | |
5986 | break; | |
c931b036 | 5987 | case OA_FILEREF: |
30901a8a FC |
5988 | if (!numargs) PUSHs(NULL); |
5989 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
5990 | /* no magic here, as the prototype will have added an extra |
5991 | refgen and we just want what was there before that */ | |
5992 | PUSHs(SvRV(*svp)); | |
5993 | else { | |
5994 | const bool constr = PL_op->op_private & whicharg; | |
5995 | PUSHs(S_rv2gv(aTHX_ | |
5996 | svp && *svp ? *svp : &PL_sv_undef, | |
b54f893d | 5997 | constr, cBOOL(CopHINTS_get(PL_curcop) & HINT_STRICT_REFS), |
c931b036 FC |
5998 | !constr |
5999 | )); | |
6000 | } | |
6001 | break; | |
c72a5629 | 6002 | case OA_SCALARREF: |
1efec5ed FC |
6003 | if (!numargs) goto try_defsv; |
6004 | else { | |
17008668 FC |
6005 | const bool wantscalar = |
6006 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 6007 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
6008 | /* We have to permit globrefs even for the \$ proto, as |
6009 | *foo is indistinguishable from ${\*foo}, and the proto- | |
6010 | type permits the latter. */ | |
6011 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 6012 | wantscalar ? SVt_PVLV |
46bef06f FC |
6013 | : opnum == OP_LOCK || opnum == OP_UNDEF |
6014 | ? SVt_PVCV | |
efe889ae | 6015 | : SVt_PVHV |
17008668 | 6016 | ) |
c72a5629 FC |
6017 | ) |
6018 | DIE(aTHX_ | |
6019 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
17008668 | 6020 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 6021 | whicharg, PL_op_name[opnum], |
17008668 FC |
6022 | wantscalar |
6023 | ? "scalar reference" | |
46bef06f | 6024 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
6025 | ? "reference to one of [$@%&*]" |
6026 | : "reference to one of [$@%*]" | |
c72a5629 FC |
6027 | ); |
6028 | PUSHs(SvRV(*svp)); | |
88bb468b FC |
6029 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv |
6030 | && cxstack[cxstack_ix].cx_type & CXp_HASARGS) { | |
6031 | /* Undo @_ localisation, so that sub exit does not undo | |
6032 | part of our undeffing. */ | |
6033 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; | |
6034 | POP_SAVEARRAY(); | |
6035 | cx->cx_type &= ~ CXp_HASARGS; | |
6036 | assert(!AvREAL(cx->blk_sub.argarray)); | |
6037 | } | |
17008668 | 6038 | } |
1efec5ed | 6039 | break; |
46e00a91 | 6040 | default: |
46e00a91 FC |
6041 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
6042 | } | |
6043 | oa = oa >> 4; | |
6044 | } | |
6045 | ||
deb8a388 FC |
6046 | RETURN; |
6047 | } | |
6048 | ||
84ed0108 FC |
6049 | PP(pp_runcv) |
6050 | { | |
6051 | dSP; | |
6052 | CV *cv; | |
6053 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 6054 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
6055 | } |
6056 | else cv = find_runcv(NULL); | |
e157a82b | 6057 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
6058 | RETURN; |
6059 | } | |
6060 | ||
6061 | ||
e609e586 NC |
6062 | /* |
6063 | * Local variables: | |
6064 | * c-indentation-style: bsd | |
6065 | * c-basic-offset: 4 | |
14d04a33 | 6066 | * indent-tabs-mode: nil |
e609e586 NC |
6067 | * End: |
6068 | * | |
14d04a33 | 6069 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 6070 | */ |