https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
| 13 | * to discover, and no knowing what you'll find round a corner. | |
| 14 | * And Elves, sir!' --Samwise Gamgee | |
| 15 | * | |
| 16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
| a0d0e21e | 17 | */ |
| 79072805 | 18 | |
| 166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
| 20 | * opcodes that make up a perl program. A typical pp function expects to | |
| 21 | * find its arguments on the stack, and usually pushes its results onto | |
| 22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 23 | * a pointer to the relevant pp_foo() function. | |
| 24 | */ | |
| 25 | ||
| 79072805 | 26 | #include "EXTERN.h" |
| 864dbfa3 | 27 | #define PERL_IN_PP_C |
| 79072805 | 28 | #include "perl.h" |
| 77bc9082 | 29 | #include "keywords.h" |
| 79072805 | 30 | |
| a4af207c JH |
31 | #include "reentr.h" |
| 32 | ||
| dfe9444c AD |
33 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 34 | it, since pid_t is an integral type. | |
| 35 | --AD 2/20/1998 | |
| 36 | */ | |
| 37 | #ifdef NEED_GETPID_PROTO | |
| 38 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
39 | #endif |
| 40 | ||
| 0630166f SP |
41 | /* |
| 42 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 43 | * This switches them over to IEEE. | |
| 44 | */ | |
| 45 | #if defined(LIBM_LIB_VERSION) | |
| 46 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 47 | #endif | |
| 48 | ||
| 13017935 SM |
49 | /* variations on pp_null */ |
| 50 | ||
| 93a17b20 LW |
51 | PP(pp_stub) |
| 52 | { | |
| 97aff369 | 53 | dVAR; |
| 39644a26 | 54 | dSP; |
| 54310121 | 55 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 56 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
57 | RETURN; |
| 58 | } | |
| 59 | ||
| 79072805 LW |
60 | /* Pushy stuff. */ |
| 61 | ||
| 93a17b20 LW |
62 | PP(pp_padav) |
| 63 | { | |
| 97aff369 | 64 | dVAR; dSP; dTARGET; |
| 13017935 | 65 | I32 gimme; |
| e190e9b4 | 66 | assert(SvTYPE(TARG) == SVt_PVAV); |
| 533c011a | 67 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
68 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 69 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 70 | EXTEND(SP, 1); |
| 533c011a | 71 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 72 | PUSHs(TARG); |
| 93a17b20 | 73 | RETURN; |
| 78f9721b SM |
74 | } else if (LVRET) { |
| 75 | if (GIMME == G_SCALAR) | |
| 76 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 77 | PUSHs(TARG); | |
| 78 | RETURN; | |
| 85e6fe83 | 79 | } |
| 13017935 SM |
80 | gimme = GIMME_V; |
| 81 | if (gimme == G_ARRAY) { | |
| 502c6561 | 82 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 | 83 | EXTEND(SP, maxarg); |
| 93965878 NIS |
84 | if (SvMAGICAL(TARG)) { |
| 85 | U32 i; | |
| eb160463 | 86 | for (i=0; i < (U32)maxarg; i++) { |
| 502c6561 | 87 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
| 3280af22 | 88 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
89 | } |
| 90 | } | |
| 91 | else { | |
| 502c6561 | 92 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
| 93965878 | 93 | } |
| 85e6fe83 LW |
94 | SP += maxarg; |
| 95 | } | |
| 13017935 | 96 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 97 | SV* const sv = sv_newmortal(); |
| 502c6561 | 98 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 LW |
99 | sv_setiv(sv, maxarg); |
| 100 | PUSHs(sv); | |
| 101 | } | |
| 102 | RETURN; | |
| 93a17b20 LW |
103 | } |
| 104 | ||
| 105 | PP(pp_padhv) | |
| 106 | { | |
| 97aff369 | 107 | dVAR; dSP; dTARGET; |
| 54310121 | 108 | I32 gimme; |
| 109 | ||
| e190e9b4 | 110 | assert(SvTYPE(TARG) == SVt_PVHV); |
| 93a17b20 | 111 | XPUSHs(TARG); |
| 533c011a | 112 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
113 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 114 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 115 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 116 | RETURN; |
| 78f9721b SM |
117 | else if (LVRET) { |
| 118 | if (GIMME == G_SCALAR) | |
| 119 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 120 | RETURN; | |
| 121 | } | |
| 54310121 | 122 | gimme = GIMME_V; |
| 123 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 124 | RETURNOP(do_kv()); |
| 85e6fe83 | 125 | } |
| 54310121 | 126 | else if (gimme == G_SCALAR) { |
| 85fbaab2 | 127 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
| 85e6fe83 | 128 | SETs(sv); |
| 85e6fe83 | 129 | } |
| 54310121 | 130 | RETURN; |
| 93a17b20 LW |
131 | } |
| 132 | ||
| 79072805 LW |
133 | /* Translations. */ |
| 134 | ||
| 4bdf8368 | 135 | static const char S_no_symref_sv[] = |
| def89bff NC |
136 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
| 137 | ||
| 79072805 LW |
138 | PP(pp_rv2gv) |
| 139 | { | |
| 97aff369 | 140 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 141 | |
| bb1bc619 | 142 | SvGETMAGIC(sv); |
| ed6116ce | 143 | if (SvROK(sv)) { |
| a0d0e21e | 144 | wasref: |
| f5284f61 IZ |
145 | tryAMAGICunDEREF(to_gv); |
| 146 | ||
| ed6116ce | 147 | sv = SvRV(sv); |
| b1dadf13 | 148 | if (SvTYPE(sv) == SVt_PVIO) { |
| 159b6efe | 149 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
| b1dadf13 | 150 | gv_init(gv, 0, "", 0, 0); |
| a45c7426 | 151 | GvIOp(gv) = MUTABLE_IO(sv); |
| b37c2d43 | 152 | SvREFCNT_inc_void_NN(sv); |
| ad64d0ec | 153 | sv = MUTABLE_SV(gv); |
| ef54e1a4 | 154 | } |
| 6e592b3a | 155 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 156 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
157 | } |
| 158 | else { | |
| 6e592b3a | 159 | if (!isGV_with_GP(sv)) { |
| afd1915d | 160 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 161 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 162 | * NI-S 1999/05/07 |
| b13b2135 | 163 | */ |
| ac53db4c | 164 | if (SvREADONLY(sv)) |
| 6ad8f254 | 165 | Perl_croak_no_modify(aTHX); |
| 1d8d4d2a | 166 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
167 | GV *gv; |
| 168 | if (cUNOP->op_targ) { | |
| 169 | STRLEN len; | |
| 0bd48802 AL |
170 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 171 | const char * const name = SvPV(namesv, len); | |
| 159b6efe | 172 | gv = MUTABLE_GV(newSV(0)); |
| 2c8ac474 GS |
173 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 174 | } | |
| 175 | else { | |
| 0bd48802 | 176 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 177 | gv = newGVgen(name); |
| 1d8d4d2a | 178 | } |
| 43230e26 | 179 | prepare_SV_for_RV(sv); |
| ad64d0ec | 180 | SvRV_set(sv, MUTABLE_SV(gv)); |
| 853846ea | 181 | SvROK_on(sv); |
| 1d8d4d2a | 182 | SvSETMAGIC(sv); |
| 853846ea | 183 | goto wasref; |
| 2c8ac474 | 184 | } |
| 533c011a NIS |
185 | if (PL_op->op_flags & OPf_REF || |
| 186 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 187 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 188 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 189 | report_uninit(sv); |
| a0d0e21e LW |
190 | RETSETUNDEF; |
| 191 | } | |
| 35cd451c GS |
192 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 193 | !(PL_op->op_flags & OPf_MOD)) | |
| 194 | { | |
| ad64d0ec | 195 | SV * const temp = MUTABLE_SV(gv_fetchsv(sv, 0, SVt_PVGV)); |
| 7a5fd60d NC |
196 | if (!temp |
| 197 | && (!is_gv_magical_sv(sv,0) | |
| ad64d0ec NC |
198 | || !(sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, |
| 199 | SVt_PVGV))))) { | |
| 35cd451c | 200 | RETSETUNDEF; |
| c9d5ac95 | 201 | } |
| 7a5fd60d | 202 | sv = temp; |
| 35cd451c GS |
203 | } |
| 204 | else { | |
| 205 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 10b53e54 | 206 | DIE(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), "a symbol"); |
| e26df76a NC |
207 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 208 | == OPpDONT_INIT_GV) { | |
| 209 | /* We are the target of a coderef assignment. Return | |
| 210 | the scalar unchanged, and let pp_sasssign deal with | |
| 211 | things. */ | |
| 212 | RETURN; | |
| 213 | } | |
| ad64d0ec | 214 | sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, SVt_PVGV)); |
| 35cd451c | 215 | } |
| 93a17b20 | 216 | } |
| 79072805 | 217 | } |
| 533c011a | 218 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 159b6efe | 219 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); |
| 79072805 LW |
220 | SETs(sv); |
| 221 | RETURN; | |
| 222 | } | |
| 223 | ||
| dc3c76f8 NC |
224 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 225 | GV * | |
| fe9845cc RB |
226 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 227 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
228 | { |
| 229 | dVAR; | |
| 230 | GV *gv; | |
| 231 | ||
| 7918f24d NC |
232 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 233 | ||
| dc3c76f8 NC |
234 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 235 | if (SvOK(sv)) | |
| 10b53e54 | 236 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
| dc3c76f8 NC |
237 | else |
| 238 | Perl_die(aTHX_ PL_no_usym, what); | |
| 239 | } | |
| 240 | if (!SvOK(sv)) { | |
| 241 | if (PL_op->op_flags & OPf_REF) | |
| 242 | Perl_die(aTHX_ PL_no_usym, what); | |
| 243 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 244 | report_uninit(sv); | |
| 245 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 246 | (*spp)--; | |
| 247 | return NULL; | |
| 248 | } | |
| 249 | **spp = &PL_sv_undef; | |
| 250 | return NULL; | |
| 251 | } | |
| 252 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 253 | !(PL_op->op_flags & OPf_MOD)) | |
| 254 | { | |
| 81e3fc25 | 255 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
256 | if (!gv |
| 257 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 258 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
259 | { |
| 260 | **spp = &PL_sv_undef; | |
| 261 | return NULL; | |
| 262 | } | |
| 263 | } | |
| 264 | else { | |
| 81e3fc25 | 265 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
266 | } |
| 267 | return gv; | |
| 268 | } | |
| 269 | ||
| 79072805 LW |
270 | PP(pp_rv2sv) |
| 271 | { | |
| 97aff369 | 272 | dVAR; dSP; dTOPss; |
| c445ea15 | 273 | GV *gv = NULL; |
| 79072805 | 274 | |
| 0824d667 DM |
275 | if (!(PL_op->op_private & OPpDEREFed)) |
| 276 | SvGETMAGIC(sv); | |
| ed6116ce | 277 | if (SvROK(sv)) { |
| f5284f61 IZ |
278 | tryAMAGICunDEREF(to_sv); |
| 279 | ||
| ed6116ce | 280 | sv = SvRV(sv); |
| 79072805 LW |
281 | switch (SvTYPE(sv)) { |
| 282 | case SVt_PVAV: | |
| 283 | case SVt_PVHV: | |
| 284 | case SVt_PVCV: | |
| cbae9b9f YST |
285 | case SVt_PVFM: |
| 286 | case SVt_PVIO: | |
| cea2e8a9 | 287 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 288 | default: NOOP; |
| 79072805 LW |
289 | } |
| 290 | } | |
| 291 | else { | |
| 159b6efe | 292 | gv = MUTABLE_GV(sv); |
| 748a9306 | 293 | |
| 6e592b3a | 294 | if (!isGV_with_GP(gv)) { |
| dc3c76f8 NC |
295 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 296 | if (!gv) | |
| 297 | RETURN; | |
| 463ee0b2 | 298 | } |
| 29c711a3 | 299 | sv = GvSVn(gv); |
| a0d0e21e | 300 | } |
| 533c011a | 301 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
302 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 303 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 159b6efe | 304 | sv = save_scalar(MUTABLE_GV(TOPs)); |
| 82d03984 RGS |
305 | else if (gv) |
| 306 | sv = save_scalar(gv); | |
| 307 | else | |
| f1f66076 | 308 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
| 82d03984 | 309 | } |
| 533c011a NIS |
310 | else if (PL_op->op_private & OPpDEREF) |
| 311 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 312 | } |
| a0d0e21e | 313 | SETs(sv); |
| 79072805 LW |
314 | RETURN; |
| 315 | } | |
| 316 | ||
| 317 | PP(pp_av2arylen) | |
| 318 | { | |
| 97aff369 | 319 | dVAR; dSP; |
| 502c6561 | 320 | AV * const av = MUTABLE_AV(TOPs); |
| 02d85cc3 EB |
321 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 322 | if (lvalue) { | |
| 323 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| 324 | if (!*sv) { | |
| 325 | *sv = newSV_type(SVt_PVMG); | |
| 326 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
| 327 | } | |
| 328 | SETs(*sv); | |
| 329 | } else { | |
| 330 | SETs(sv_2mortal(newSViv( | |
| 331 | AvFILL(MUTABLE_AV(av)) + CopARYBASE_get(PL_curcop) | |
| 332 | ))); | |
| 79072805 | 333 | } |
| 79072805 LW |
334 | RETURN; |
| 335 | } | |
| 336 | ||
| a0d0e21e LW |
337 | PP(pp_pos) |
| 338 | { | |
| 2154eca7 | 339 | dVAR; dSP; dPOPss; |
| 8ec5e241 | 340 | |
| 78f9721b | 341 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 2154eca7 EB |
342 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
| 343 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); | |
| 344 | LvTYPE(ret) = '.'; | |
| 345 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
| 346 | PUSHs(ret); /* no SvSETMAGIC */ | |
| a0d0e21e LW |
347 | RETURN; |
| 348 | } | |
| 349 | else { | |
| a0d0e21e | 350 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 351 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 352 | if (mg && mg->mg_len >= 0) { |
| 2154eca7 | 353 | dTARGET; |
| a0ed51b3 | 354 | I32 i = mg->mg_len; |
| 7e2040f0 | 355 | if (DO_UTF8(sv)) |
| a0ed51b3 | 356 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 357 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
358 | RETURN; |
| 359 | } | |
| 360 | } | |
| 361 | RETPUSHUNDEF; | |
| 362 | } | |
| 363 | } | |
| 364 | ||
| 79072805 LW |
365 | PP(pp_rv2cv) |
| 366 | { | |
| 97aff369 | 367 | dVAR; dSP; |
| 79072805 | 368 | GV *gv; |
| 1eced8f8 | 369 | HV *stash_unused; |
| c445ea15 AL |
370 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 371 | ? 0 | |
| 372 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 373 | ? GV_ADD|GV_NOEXPAND | |
| 374 | : GV_ADD; | |
| 4633a7c4 LW |
375 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 376 | /* (But not in defined().) */ | |
| e26df76a | 377 | |
| 1eced8f8 | 378 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
379 | if (cv) { |
| 380 | if (CvCLONE(cv)) | |
| ad64d0ec | 381 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| d32f2495 SC |
382 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 383 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 384 | cv = GvCV(gv); | |
| 385 | if (!CvLVALUE(cv)) | |
| 386 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 387 | } | |
| 07055b4c | 388 | } |
| e26df76a | 389 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 390 | cv = MUTABLE_CV(gv); |
| e26df76a | 391 | } |
| 07055b4c | 392 | else |
| ea726b52 | 393 | cv = MUTABLE_CV(&PL_sv_undef); |
| ad64d0ec | 394 | SETs(MUTABLE_SV(cv)); |
| 79072805 LW |
395 | RETURN; |
| 396 | } | |
| 397 | ||
| c07a80fd | 398 | PP(pp_prototype) |
| 399 | { | |
| 97aff369 | 400 | dVAR; dSP; |
| c07a80fd | 401 | CV *cv; |
| 402 | HV *stash; | |
| 403 | GV *gv; | |
| fabdb6c0 | 404 | SV *ret = &PL_sv_undef; |
| c07a80fd | 405 | |
| b6c543e3 | 406 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 407 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 408 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 409 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
410 | if (code < 0) { /* Overridable. */ |
| 411 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 412 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
413 | I32 oa; |
| 414 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 415 | ||
| bdf1bb36 | 416 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 417 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 418 | goto set; |
| d116c547 | 419 | if (code == -KEY_mkdir) { |
| 84bafc02 | 420 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
421 | goto set; |
| 422 | } | |
| 7c8178a1 RGS |
423 | if (code == -KEY_keys || code == -KEY_values || code == -KEY_each) { |
| 424 | ret = newSVpvs_flags("\\[@%]", SVs_TEMP); | |
| 1db4d195 FC |
425 | goto set; |
| 426 | } | |
| 427 | if (code == -KEY_tied || code == -KEY_untie) { | |
| 428 | ret = newSVpvs_flags("\\[$@%*]", SVs_TEMP); | |
| 429 | goto set; | |
| 430 | } | |
| 431 | if (code == -KEY_tie) { | |
| 432 | ret = newSVpvs_flags("\\[$@%*]$@", SVs_TEMP); | |
| 7c8178a1 RGS |
433 | goto set; |
| 434 | } | |
| e3f73d4e RGS |
435 | if (code == -KEY_readpipe) { |
| 436 | s = "CORE::backtick"; | |
| 437 | } | |
| b6c543e3 | 438 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
439 | if (strEQ(s + 6, PL_op_name[i]) |
| 440 | || strEQ(s + 6, PL_op_desc[i])) | |
| 441 | { | |
| b6c543e3 | 442 | goto found; |
| 22c35a8c | 443 | } |
| b6c543e3 IZ |
444 | i++; |
| 445 | } | |
| 446 | goto nonesuch; /* Should not happen... */ | |
| 447 | found: | |
| 59b085e1 | 448 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 449 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 450 | while (oa) { |
| 59b085e1 | 451 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
452 | seen_question = 1; |
| 453 | str[n++] = ';'; | |
| ef54e1a4 | 454 | } |
| b13b2135 | 455 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
456 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 457 | /* But globs are already references (kinda) */ | |
| 458 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 459 | ) { | |
| b6c543e3 IZ |
460 | str[n++] = '\\'; |
| 461 | } | |
| b6c543e3 IZ |
462 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 463 | oa = oa >> 4; | |
| 464 | } | |
| 59b085e1 RGS |
465 | if (defgv && str[n - 1] == '$') |
| 466 | str[n - 1] = '_'; | |
| b6c543e3 | 467 | str[n++] = '\0'; |
| 59cd0e26 | 468 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
469 | } |
| 470 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
471 | goto set; |
| 472 | else { /* None such */ | |
| 473 | nonesuch: | |
| d470f89e | 474 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
475 | } |
| 476 | } | |
| 477 | } | |
| f2c0649b | 478 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 479 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 480 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 481 | set: |
| c07a80fd | 482 | SETs(ret); |
| 483 | RETURN; | |
| 484 | } | |
| 485 | ||
| a0d0e21e LW |
486 | PP(pp_anoncode) |
| 487 | { | |
| 97aff369 | 488 | dVAR; dSP; |
| ea726b52 | 489 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 490 | if (CvCLONE(cv)) |
| ad64d0ec | 491 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 5f05dabc | 492 | EXTEND(SP,1); |
| ad64d0ec | 493 | PUSHs(MUTABLE_SV(cv)); |
| a0d0e21e LW |
494 | RETURN; |
| 495 | } | |
| 496 | ||
| 497 | PP(pp_srefgen) | |
| 79072805 | 498 | { |
| 97aff369 | 499 | dVAR; dSP; |
| 71be2cbc | 500 | *SP = refto(*SP); |
| 79072805 | 501 | RETURN; |
| 8ec5e241 | 502 | } |
| a0d0e21e LW |
503 | |
| 504 | PP(pp_refgen) | |
| 505 | { | |
| 97aff369 | 506 | dVAR; dSP; dMARK; |
| a0d0e21e | 507 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
508 | if (++MARK <= SP) |
| 509 | *MARK = *SP; | |
| 510 | else | |
| 3280af22 | 511 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
512 | *MARK = refto(*MARK); |
| 513 | SP = MARK; | |
| 514 | RETURN; | |
| a0d0e21e | 515 | } |
| bbce6d69 | 516 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 517 | while (++MARK <= SP) |
| 518 | *MARK = refto(*MARK); | |
| a0d0e21e | 519 | RETURN; |
| 79072805 LW |
520 | } |
| 521 | ||
| 76e3520e | 522 | STATIC SV* |
| cea2e8a9 | 523 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 524 | { |
| 97aff369 | 525 | dVAR; |
| 71be2cbc | 526 | SV* rv; |
| 527 | ||
| 7918f24d NC |
528 | PERL_ARGS_ASSERT_REFTO; |
| 529 | ||
| 71be2cbc | 530 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 531 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 532 | vivify_defelem(sv); |
| 533 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 534 | sv = &PL_sv_undef; |
| 0dd88869 | 535 | else |
| b37c2d43 | 536 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 537 | } |
| d8b46c1b | 538 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
539 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 540 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 541 | SvTEMP_off(sv); |
| b37c2d43 | 542 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 543 | } |
| f2933f5f DM |
544 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 545 | sv = newSVsv(sv); | |
| 71be2cbc | 546 | else { |
| 547 | SvTEMP_off(sv); | |
| b37c2d43 | 548 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 549 | } |
| 550 | rv = sv_newmortal(); | |
| 4df7f6af | 551 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 552 | SvRV_set(rv, sv); |
| 71be2cbc | 553 | SvROK_on(rv); |
| 554 | return rv; | |
| 555 | } | |
| 556 | ||
| 79072805 LW |
557 | PP(pp_ref) |
| 558 | { | |
| 97aff369 | 559 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 560 | const char *pv; |
| 1b6737cc | 561 | SV * const sv = POPs; |
| cfe9162d | 562 | STRLEN len; |
| f12c7020 | 563 | |
| 5b295bef RD |
564 | if (sv) |
| 565 | SvGETMAGIC(sv); | |
| f12c7020 | 566 | |
| a0d0e21e | 567 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 568 | RETPUSHNO; |
| 79072805 | 569 | |
| cfe9162d YO |
570 | pv = sv_reftype_len(SvRV(sv),TRUE,&len); |
| 571 | PUSHp(pv, len); | |
| 79072805 LW |
572 | RETURN; |
| 573 | } | |
| 574 | ||
| 575 | PP(pp_bless) | |
| 576 | { | |
| 97aff369 | 577 | dVAR; dSP; |
| 463ee0b2 | 578 | HV *stash; |
| 79072805 | 579 | |
| 463ee0b2 | 580 | if (MAXARG == 1) |
| 11faa288 | 581 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 582 | else { |
| 1b6737cc | 583 | SV * const ssv = POPs; |
| 7b8d334a | 584 | STRLEN len; |
| e1ec3a88 | 585 | const char *ptr; |
| 81689caa | 586 | |
| 016a42f3 | 587 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 588 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 589 | ptr = SvPV_const(ssv,len); |
| a2a5de95 NC |
590 | if (len == 0) |
| 591 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
| 592 | "Explicit blessing to '' (assuming package main)"); | |
| da51bb9b | 593 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 594 | } |
| a0d0e21e | 595 | |
| 5d3fdfeb | 596 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
597 | RETURN; |
| 598 | } | |
| 599 | ||
| fb73857a | 600 | PP(pp_gelem) |
| 601 | { | |
| 97aff369 | 602 | dVAR; dSP; |
| b13b2135 | 603 | |
| 1b6737cc AL |
604 | SV *sv = POPs; |
| 605 | const char * const elem = SvPV_nolen_const(sv); | |
| 159b6efe | 606 | GV * const gv = MUTABLE_GV(POPs); |
| c445ea15 | 607 | SV * tmpRef = NULL; |
| 1b6737cc | 608 | |
| c445ea15 | 609 | sv = NULL; |
| c4ba80c3 NC |
610 | if (elem) { |
| 611 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 612 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
613 | switch (*elem) { |
| 614 | case 'A': | |
| 1b6737cc | 615 | if (strEQ(second_letter, "RRAY")) |
| ad64d0ec | 616 | tmpRef = MUTABLE_SV(GvAV(gv)); |
| c4ba80c3 NC |
617 | break; |
| 618 | case 'C': | |
| 1b6737cc | 619 | if (strEQ(second_letter, "ODE")) |
| ad64d0ec | 620 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
| c4ba80c3 NC |
621 | break; |
| 622 | case 'F': | |
| 1b6737cc | 623 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
624 | /* finally deprecated in 5.8.0 */ |
| 625 | deprecate("*glob{FILEHANDLE}"); | |
| ad64d0ec | 626 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
627 | } |
| 628 | else | |
| 1b6737cc | 629 | if (strEQ(second_letter, "ORMAT")) |
| ad64d0ec | 630 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
| c4ba80c3 NC |
631 | break; |
| 632 | case 'G': | |
| 1b6737cc | 633 | if (strEQ(second_letter, "LOB")) |
| ad64d0ec | 634 | tmpRef = MUTABLE_SV(gv); |
| c4ba80c3 NC |
635 | break; |
| 636 | case 'H': | |
| 1b6737cc | 637 | if (strEQ(second_letter, "ASH")) |
| ad64d0ec | 638 | tmpRef = MUTABLE_SV(GvHV(gv)); |
| c4ba80c3 NC |
639 | break; |
| 640 | case 'I': | |
| 1b6737cc | 641 | if (*second_letter == 'O' && !elem[2]) |
| ad64d0ec | 642 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
643 | break; |
| 644 | case 'N': | |
| 1b6737cc | 645 | if (strEQ(second_letter, "AME")) |
| a663657d | 646 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
647 | break; |
| 648 | case 'P': | |
| 1b6737cc | 649 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
650 | const HV * const stash = GvSTASH(gv); |
| 651 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 652 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
653 | } |
| 654 | break; | |
| 655 | case 'S': | |
| 1b6737cc | 656 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 657 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 658 | break; |
| 39b99f21 | 659 | } |
| fb73857a | 660 | } |
| 76e3520e GS |
661 | if (tmpRef) |
| 662 | sv = newRV(tmpRef); | |
| fb73857a | 663 | if (sv) |
| 664 | sv_2mortal(sv); | |
| 665 | else | |
| 3280af22 | 666 | sv = &PL_sv_undef; |
| fb73857a | 667 | XPUSHs(sv); |
| 668 | RETURN; | |
| 669 | } | |
| 670 | ||
| a0d0e21e | 671 | /* Pattern matching */ |
| 79072805 | 672 | |
| a0d0e21e | 673 | PP(pp_study) |
| 79072805 | 674 | { |
| 97aff369 | 675 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
676 | register unsigned char *s; |
| 677 | register I32 pos; | |
| 678 | register I32 ch; | |
| 679 | register I32 *sfirst; | |
| 680 | register I32 *snext; | |
| a0d0e21e LW |
681 | STRLEN len; |
| 682 | ||
| 3280af22 | 683 | if (sv == PL_lastscream) { |
| 1e422769 | 684 | if (SvSCREAM(sv)) |
| 685 | RETPUSHYES; | |
| 686 | } | |
| a4f4e906 NC |
687 | s = (unsigned char*)(SvPV(sv, len)); |
| 688 | pos = len; | |
| c9b9f909 | 689 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
690 | /* No point in studying a zero length string, and not safe to study |
| 691 | anything that doesn't appear to be a simple scalar (and hence might | |
| 692 | change between now and when the regexp engine runs without our set | |
| bd473224 | 693 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
694 | stringification. */ |
| 695 | RETPUSHNO; | |
| 696 | } | |
| 697 | ||
| 698 | if (PL_lastscream) { | |
| 699 | SvSCREAM_off(PL_lastscream); | |
| 700 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 701 | } |
| b37c2d43 | 702 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 703 | |
| 704 | s = (unsigned char*)(SvPV(sv, len)); | |
| 705 | pos = len; | |
| 706 | if (pos <= 0) | |
| 707 | RETPUSHNO; | |
| 3280af22 NIS |
708 | if (pos > PL_maxscream) { |
| 709 | if (PL_maxscream < 0) { | |
| 710 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
711 | Newx(PL_screamfirst, 256, I32); |
| 712 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
713 | } |
| 714 | else { | |
| 3280af22 NIS |
715 | PL_maxscream = pos + pos / 4; |
| 716 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 717 | } |
| 79072805 | 718 | } |
| a0d0e21e | 719 | |
| 3280af22 NIS |
720 | sfirst = PL_screamfirst; |
| 721 | snext = PL_screamnext; | |
| a0d0e21e LW |
722 | |
| 723 | if (!sfirst || !snext) | |
| cea2e8a9 | 724 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
725 | |
| 726 | for (ch = 256; ch; --ch) | |
| 727 | *sfirst++ = -1; | |
| 728 | sfirst -= 256; | |
| 729 | ||
| 730 | while (--pos >= 0) { | |
| 1b6737cc | 731 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
732 | if (sfirst[ch] >= 0) |
| 733 | snext[pos] = sfirst[ch] - pos; | |
| 734 | else | |
| 735 | snext[pos] = -pos; | |
| 736 | sfirst[ch] = pos; | |
| 79072805 LW |
737 | } |
| 738 | ||
| c07a80fd | 739 | SvSCREAM_on(sv); |
| 14befaf4 | 740 | /* piggyback on m//g magic */ |
| c445ea15 | 741 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 742 | RETPUSHYES; |
| 79072805 LW |
743 | } |
| 744 | ||
| a0d0e21e | 745 | PP(pp_trans) |
| 79072805 | 746 | { |
| 97aff369 | 747 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
748 | SV *sv; |
| 749 | ||
| 533c011a | 750 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 751 | sv = POPs; |
| 59f00321 RGS |
752 | else if (PL_op->op_private & OPpTARGET_MY) |
| 753 | sv = GETTARGET; | |
| 79072805 | 754 | else { |
| 54b9620d | 755 | sv = DEFSV; |
| a0d0e21e | 756 | EXTEND(SP,1); |
| 79072805 | 757 | } |
| adbc6bb1 | 758 | TARG = sv_newmortal(); |
| 4757a243 | 759 | PUSHi(do_trans(sv)); |
| a0d0e21e | 760 | RETURN; |
| 79072805 LW |
761 | } |
| 762 | ||
| a0d0e21e | 763 | /* Lvalue operators. */ |
| 79072805 | 764 | |
| a0d0e21e LW |
765 | PP(pp_schop) |
| 766 | { | |
| 97aff369 | 767 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
768 | do_chop(TARG, TOPs); |
| 769 | SETTARG; | |
| 770 | RETURN; | |
| 79072805 LW |
771 | } |
| 772 | ||
| a0d0e21e | 773 | PP(pp_chop) |
| 79072805 | 774 | { |
| 97aff369 | 775 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
776 | while (MARK < SP) |
| 777 | do_chop(TARG, *++MARK); | |
| 778 | SP = ORIGMARK; | |
| b59aed67 | 779 | XPUSHTARG; |
| a0d0e21e | 780 | RETURN; |
| 79072805 LW |
781 | } |
| 782 | ||
| a0d0e21e | 783 | PP(pp_schomp) |
| 79072805 | 784 | { |
| 97aff369 | 785 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
786 | SETi(do_chomp(TOPs)); |
| 787 | RETURN; | |
| 79072805 LW |
788 | } |
| 789 | ||
| a0d0e21e | 790 | PP(pp_chomp) |
| 79072805 | 791 | { |
| 97aff369 | 792 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 793 | register I32 count = 0; |
| 8ec5e241 | 794 | |
| a0d0e21e LW |
795 | while (SP > MARK) |
| 796 | count += do_chomp(POPs); | |
| b59aed67 | 797 | XPUSHi(count); |
| a0d0e21e | 798 | RETURN; |
| 79072805 LW |
799 | } |
| 800 | ||
| a0d0e21e LW |
801 | PP(pp_undef) |
| 802 | { | |
| 97aff369 | 803 | dVAR; dSP; |
| a0d0e21e LW |
804 | SV *sv; |
| 805 | ||
| 533c011a | 806 | if (!PL_op->op_private) { |
| 774d564b | 807 | EXTEND(SP, 1); |
| a0d0e21e | 808 | RETPUSHUNDEF; |
| 774d564b | 809 | } |
| 79072805 | 810 | |
| a0d0e21e LW |
811 | sv = POPs; |
| 812 | if (!sv) | |
| 813 | RETPUSHUNDEF; | |
| 85e6fe83 | 814 | |
| 765f542d | 815 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 816 | |
| a0d0e21e LW |
817 | switch (SvTYPE(sv)) { |
| 818 | case SVt_NULL: | |
| 819 | break; | |
| 820 | case SVt_PVAV: | |
| 502c6561 | 821 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
822 | break; |
| 823 | case SVt_PVHV: | |
| 85fbaab2 | 824 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
825 | break; |
| 826 | case SVt_PVCV: | |
| a2a5de95 NC |
827 | if (cv_const_sv((const CV *)sv)) |
| 828 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", | |
| 829 | CvANON((const CV *)sv) ? "(anonymous)" | |
| 830 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 831 | /* FALLTHROUGH */ |
| 9607fc9c | 832 | case SVt_PVFM: |
| 6fc92669 GS |
833 | { |
| 834 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
835 | GV* const gv = CvGV((const CV *)sv); |
| 836 | cv_undef(MUTABLE_CV(sv)); | |
| b3f91e91 | 837 | CvGV_set(MUTABLE_CV(sv), gv); |
| 6fc92669 | 838 | } |
| a0d0e21e | 839 | break; |
| 8e07c86e | 840 | case SVt_PVGV: |
| 6e592b3a | 841 | if (SvFAKE(sv)) { |
| 3280af22 | 842 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
843 | break; |
| 844 | } | |
| 845 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 846 | GP *gp; |
| dd69841b BB |
847 | HV *stash; |
| 848 | ||
| 849 | /* undef *Foo:: */ | |
| 159b6efe | 850 | if((stash = GvHV((const GV *)sv)) && HvNAME_get(stash)) |
| dd69841b BB |
851 | mro_isa_changed_in(stash); |
| 852 | /* undef *Pkg::meth_name ... */ | |
| 159b6efe NC |
853 | else if(GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) |
| 854 | && HvNAME_get(stash)) | |
| dd69841b BB |
855 | mro_method_changed_in(stash); |
| 856 | ||
| 159b6efe | 857 | gp_free(MUTABLE_GV(sv)); |
| a02a5408 | 858 | Newxz(gp, 1, GP); |
| 20408e3c | 859 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 860 | GvSV(sv) = newSV(0); |
| 57843af0 | 861 | GvLINE(sv) = CopLINE(PL_curcop); |
| 159b6efe | 862 | GvEGV(sv) = MUTABLE_GV(sv); |
| 20408e3c | 863 | GvMULTI_on(sv); |
| 6e592b3a | 864 | break; |
| 20408e3c | 865 | } |
| 6e592b3a | 866 | /* FALL THROUGH */ |
| a0d0e21e | 867 | default: |
| b15aece3 | 868 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 869 | SvPV_free(sv); |
| c445ea15 | 870 | SvPV_set(sv, NULL); |
| 4633a7c4 | 871 | SvLEN_set(sv, 0); |
| a0d0e21e | 872 | } |
| 0c34ef67 | 873 | SvOK_off(sv); |
| 4633a7c4 | 874 | SvSETMAGIC(sv); |
| 79072805 | 875 | } |
| a0d0e21e LW |
876 | |
| 877 | RETPUSHUNDEF; | |
| 79072805 LW |
878 | } |
| 879 | ||
| a0d0e21e | 880 | PP(pp_predec) |
| 79072805 | 881 | { |
| 97aff369 | 882 | dVAR; dSP; |
| 6e592b3a | 883 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 884 | Perl_croak_no_modify(aTHX); |
| 3510b4a1 NC |
885 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 886 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 887 | { |
| 45977657 | 888 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 889 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
890 | } |
| 891 | else | |
| 892 | sv_dec(TOPs); | |
| a0d0e21e LW |
893 | SvSETMAGIC(TOPs); |
| 894 | return NORMAL; | |
| 895 | } | |
| 79072805 | 896 | |
| a0d0e21e LW |
897 | PP(pp_postinc) |
| 898 | { | |
| 97aff369 | 899 | dVAR; dSP; dTARGET; |
| 6e592b3a | 900 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 901 | Perl_croak_no_modify(aTHX); |
| a0d0e21e | 902 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
903 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 904 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 905 | { |
| 45977657 | 906 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 907 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
908 | } |
| 909 | else | |
| 6f1401dc | 910 | sv_inc_nomg(TOPs); |
| a0d0e21e | 911 | SvSETMAGIC(TOPs); |
| 1e54a23f | 912 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
913 | if (!SvOK(TARG)) |
| 914 | sv_setiv(TARG, 0); | |
| 915 | SETs(TARG); | |
| 916 | return NORMAL; | |
| 917 | } | |
| 79072805 | 918 | |
| a0d0e21e LW |
919 | PP(pp_postdec) |
| 920 | { | |
| 97aff369 | 921 | dVAR; dSP; dTARGET; |
| 6e592b3a | 922 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 923 | Perl_croak_no_modify(aTHX); |
| a0d0e21e | 924 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
925 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 926 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 927 | { |
| 45977657 | 928 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 929 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
930 | } |
| 931 | else | |
| 6f1401dc | 932 | sv_dec_nomg(TOPs); |
| a0d0e21e LW |
933 | SvSETMAGIC(TOPs); |
| 934 | SETs(TARG); | |
| 935 | return NORMAL; | |
| 936 | } | |
| 79072805 | 937 | |
| a0d0e21e LW |
938 | /* Ordinary operators. */ |
| 939 | ||
| 940 | PP(pp_pow) | |
| 941 | { | |
| 800401ee | 942 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 943 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
944 | bool is_int = 0; |
| 945 | #endif | |
| 6f1401dc DM |
946 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
| 947 | svr = TOPs; | |
| 948 | svl = TOPm1s; | |
| 52a96ae6 HS |
949 | #ifdef PERL_PRESERVE_IVUV |
| 950 | /* For integer to integer power, we do the calculation by hand wherever | |
| 951 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 952 | integer afterwards. */ | |
| 58d76dfd | 953 | { |
| 6f1401dc | 954 | SvIV_please_nomg(svr); |
| 800401ee | 955 | if (SvIOK(svr)) { |
| 6f1401dc | 956 | SvIV_please_nomg(svl); |
| 800401ee | 957 | if (SvIOK(svl)) { |
| 900658e3 PF |
958 | UV power; |
| 959 | bool baseuok; | |
| 960 | UV baseuv; | |
| 961 | ||
| 800401ee JH |
962 | if (SvUOK(svr)) { |
| 963 | power = SvUVX(svr); | |
| 900658e3 | 964 | } else { |
| 800401ee | 965 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
966 | if (iv >= 0) { |
| 967 | power = iv; | |
| 968 | } else { | |
| 969 | goto float_it; /* Can't do negative powers this way. */ | |
| 970 | } | |
| 971 | } | |
| 972 | ||
| 800401ee | 973 | baseuok = SvUOK(svl); |
| 900658e3 | 974 | if (baseuok) { |
| 800401ee | 975 | baseuv = SvUVX(svl); |
| 900658e3 | 976 | } else { |
| 800401ee | 977 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
978 | if (iv >= 0) { |
| 979 | baseuv = iv; | |
| 980 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 981 | } else { | |
| 982 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 983 | } | |
| 984 | } | |
| 52a96ae6 HS |
985 | /* now we have integer ** positive integer. */ |
| 986 | is_int = 1; | |
| 987 | ||
| 988 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 989 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 990 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
991 | The logic here will work for any base (even non-integer |
| 992 | bases) but it can be less accurate than | |
| 993 | pow (base,power) or exp (power * log (base)) when the | |
| 994 | intermediate values start to spill out of the mantissa. | |
| 995 | With powers of 2 we know this can't happen. | |
| 996 | And powers of 2 are the favourite thing for perl | |
| 997 | programmers to notice ** not doing what they mean. */ | |
| 998 | NV result = 1.0; | |
| 999 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
1000 | |
| 1001 | if (power & 1) { | |
| 1002 | result *= base; | |
| 1003 | } | |
| 1004 | while (power >>= 1) { | |
| 1005 | base *= base; | |
| 1006 | if (power & 1) { | |
| 1007 | result *= base; | |
| 1008 | } | |
| 1009 | } | |
| 58d76dfd JH |
1010 | SP--; |
| 1011 | SETn( result ); | |
| 6f1401dc | 1012 | SvIV_please_nomg(svr); |
| 58d76dfd | 1013 | RETURN; |
| 52a96ae6 HS |
1014 | } else { |
| 1015 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1016 | register unsigned int diff = 8 * sizeof(UV); |
| 1017 | while (diff >>= 1) { | |
| 1018 | highbit -= diff; | |
| 1019 | if (baseuv >> highbit) { | |
| 1020 | highbit += diff; | |
| 1021 | } | |
| 52a96ae6 HS |
1022 | } |
| 1023 | /* we now have baseuv < 2 ** highbit */ | |
| 1024 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1025 | /* result will definitely fit in UV, so use UV math | |
| 1026 | on same algorithm as above */ | |
| 1027 | register UV result = 1; | |
| 1028 | register UV base = baseuv; | |
| f2338a2e | 1029 | const bool odd_power = cBOOL(power & 1); |
| 900658e3 PF |
1030 | if (odd_power) { |
| 1031 | result *= base; | |
| 1032 | } | |
| 1033 | while (power >>= 1) { | |
| 1034 | base *= base; | |
| 1035 | if (power & 1) { | |
| 52a96ae6 | 1036 | result *= base; |
| 52a96ae6 HS |
1037 | } |
| 1038 | } | |
| 1039 | SP--; | |
| 0615a994 | 1040 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1041 | /* answer is positive */ |
| 1042 | SETu( result ); | |
| 1043 | else if (result <= (UV)IV_MAX) | |
| 1044 | /* answer negative, fits in IV */ | |
| 1045 | SETi( -(IV)result ); | |
| 1046 | else if (result == (UV)IV_MIN) | |
| 1047 | /* 2's complement assumption: special case IV_MIN */ | |
| 1048 | SETi( IV_MIN ); | |
| 1049 | else | |
| 1050 | /* answer negative, doesn't fit */ | |
| 1051 | SETn( -(NV)result ); | |
| 1052 | RETURN; | |
| 1053 | } | |
| 1054 | } | |
| 1055 | } | |
| 1056 | } | |
| 58d76dfd | 1057 | } |
| 52a96ae6 | 1058 | float_it: |
| 58d76dfd | 1059 | #endif |
| a0d0e21e | 1060 | { |
| 6f1401dc DM |
1061 | NV right = SvNV_nomg(svr); |
| 1062 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1063 | (void)POPs; |
| 3aaeb624 JA |
1064 | |
| 1065 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1066 | /* | |
| 1067 | We are building perl with long double support and are on an AIX OS | |
| 1068 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1069 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1070 | 03/06/2006. The problem exists in at least the following versions | |
| 1071 | of AIX and the libm fileset, and no doubt others as well: | |
| 1072 | ||
| 1073 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1074 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1075 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1076 | ||
| 1077 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1078 | handle the problem ourselves. Our logic is as follows: for | |
| 1079 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1080 | exponent is an odd or even integer: | |
| 1081 | ||
| 1082 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1083 | - if even, powl(left, right) == powl(-left, right) | |
| 1084 | ||
| 1085 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1086 | we just return that (as NV_NAN). | |
| 1087 | */ | |
| 1088 | ||
| 1089 | if (left < 0.0) { | |
| 1090 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1091 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1092 | SETn( -Perl_pow( -left, right) ); | |
| 1093 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1094 | SETn( Perl_pow( -left, right) ); | |
| 1095 | } else { /* fractional power */ | |
| 1096 | SETn( NV_NAN ); | |
| 1097 | } | |
| 1098 | } else { | |
| 1099 | SETn( Perl_pow( left, right) ); | |
| 1100 | } | |
| 1101 | #else | |
| 52a96ae6 | 1102 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1103 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1104 | ||
| 52a96ae6 HS |
1105 | #ifdef PERL_PRESERVE_IVUV |
| 1106 | if (is_int) | |
| 6f1401dc | 1107 | SvIV_please_nomg(svr); |
| 52a96ae6 HS |
1108 | #endif |
| 1109 | RETURN; | |
| 93a17b20 | 1110 | } |
| a0d0e21e LW |
1111 | } |
| 1112 | ||
| 1113 | PP(pp_multiply) | |
| 1114 | { | |
| 800401ee | 1115 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 6f1401dc DM |
1116 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
| 1117 | svr = TOPs; | |
| 1118 | svl = TOPm1s; | |
| 28e5dec8 | 1119 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1120 | SvIV_please_nomg(svr); |
| 800401ee | 1121 | if (SvIOK(svr)) { |
| 28e5dec8 JH |
1122 | /* Unless the left argument is integer in range we are going to have to |
| 1123 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1124 | we know the left is integer. */ | |
| 1125 | /* Left operand is defined, so is it IV? */ | |
| 6f1401dc | 1126 | SvIV_please_nomg(svl); |
| 800401ee JH |
1127 | if (SvIOK(svl)) { |
| 1128 | bool auvok = SvUOK(svl); | |
| 1129 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1130 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1131 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1132 | UV alow; | |
| 1133 | UV ahigh; | |
| 1134 | UV blow; | |
| 1135 | UV bhigh; | |
| 1136 | ||
| 1137 | if (auvok) { | |
| 800401ee | 1138 | alow = SvUVX(svl); |
| 28e5dec8 | 1139 | } else { |
| 800401ee | 1140 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1141 | if (aiv >= 0) { |
| 1142 | alow = aiv; | |
| 1143 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1144 | } else { | |
| 1145 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1146 | } | |
| 1147 | } | |
| 1148 | if (buvok) { | |
| 800401ee | 1149 | blow = SvUVX(svr); |
| 28e5dec8 | 1150 | } else { |
| 800401ee | 1151 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1152 | if (biv >= 0) { |
| 1153 | blow = biv; | |
| 1154 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1155 | } else { | |
| 1156 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1157 | } | |
| 1158 | } | |
| 1159 | ||
| 1160 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1161 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1162 | alow &= botmask; | |
| 1163 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1164 | blow &= botmask; | |
| 1165 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1166 | NOOP; |
| 28e5dec8 JH |
1167 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1168 | which is overflow. Drop to NVs below. */ | |
| 1169 | } else if (!ahigh && !bhigh) { | |
| 1170 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1171 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1172 | const UV product = alow * blow; |
| 28e5dec8 JH |
1173 | if (auvok == buvok) { |
| 1174 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1175 | SP--; | |
| 1176 | SETu( product ); | |
| 1177 | RETURN; | |
| 1178 | } else if (product <= (UV)IV_MIN) { | |
| 1179 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1180 | /* -ve result, which could overflow an IV */ | |
| 1181 | SP--; | |
| 25716404 | 1182 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1183 | RETURN; |
| 1184 | } /* else drop to NVs below. */ | |
| 1185 | } else { | |
| 1186 | /* One operand is large, 1 small */ | |
| 1187 | UV product_middle; | |
| 1188 | if (bhigh) { | |
| 1189 | /* swap the operands */ | |
| 1190 | ahigh = bhigh; | |
| 1191 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1192 | blow = alow; | |
| 1193 | alow = bhigh; | |
| 1194 | } | |
| 1195 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1196 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1197 | product_middle = ahigh * blow; | |
| 1198 | if (!(product_middle & topmask)) { | |
| 1199 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1200 | UV product_low; | |
| 1201 | product_middle <<= (4 * sizeof (UV)); | |
| 1202 | product_low = alow * blow; | |
| 1203 | ||
| 1204 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1205 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1206 | unsigned whatever the actual representation*/ | |
| 1207 | product_low += product_middle; | |
| 1208 | if (product_low >= product_middle) { | |
| 1209 | /* didn't overflow */ | |
| 1210 | if (auvok == buvok) { | |
| 1211 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1212 | SP--; | |
| 1213 | SETu( product_low ); | |
| 1214 | RETURN; | |
| 1215 | } else if (product_low <= (UV)IV_MIN) { | |
| 1216 | /* 2s complement assumption again */ | |
| 1217 | /* -ve result, which could overflow an IV */ | |
| 1218 | SP--; | |
| 25716404 | 1219 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1220 | RETURN; |
| 1221 | } /* else drop to NVs below. */ | |
| 1222 | } | |
| 1223 | } /* product_middle too large */ | |
| 1224 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1225 | } /* SvIOK(svl) */ |
| 1226 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1227 | #endif |
| a0d0e21e | 1228 | { |
| 6f1401dc DM |
1229 | NV right = SvNV_nomg(svr); |
| 1230 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1231 | (void)POPs; |
| a0d0e21e LW |
1232 | SETn( left * right ); |
| 1233 | RETURN; | |
| 79072805 | 1234 | } |
| a0d0e21e LW |
1235 | } |
| 1236 | ||
| 1237 | PP(pp_divide) | |
| 1238 | { | |
| 800401ee | 1239 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 6f1401dc DM |
1240 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
| 1241 | svr = TOPs; | |
| 1242 | svl = TOPm1s; | |
| 5479d192 | 1243 | /* Only try to do UV divide first |
| 68795e93 | 1244 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1245 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1246 | to preserve)) | |
| 1247 | The assumption is that it is better to use floating point divide | |
| 1248 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1249 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1250 | can be too large to preserve, so don't need to compile the code to | |
| 1251 | test the size of UVs. */ | |
| 1252 | ||
| a0d0e21e | 1253 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1254 | # define PERL_TRY_UV_DIVIDE |
| 1255 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1256 | #else |
| 5479d192 NC |
1257 | # ifdef PERL_PRESERVE_IVUV |
| 1258 | # ifndef NV_PRESERVES_UV | |
| 1259 | # define PERL_TRY_UV_DIVIDE | |
| 1260 | # endif | |
| 1261 | # endif | |
| a0d0e21e | 1262 | #endif |
| 5479d192 NC |
1263 | |
| 1264 | #ifdef PERL_TRY_UV_DIVIDE | |
| 6f1401dc | 1265 | SvIV_please_nomg(svr); |
| 800401ee | 1266 | if (SvIOK(svr)) { |
| 6f1401dc | 1267 | SvIV_please_nomg(svl); |
| 800401ee JH |
1268 | if (SvIOK(svl)) { |
| 1269 | bool left_non_neg = SvUOK(svl); | |
| 1270 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1271 | UV left; |
| 1272 | UV right; | |
| 1273 | ||
| 1274 | if (right_non_neg) { | |
| 800401ee | 1275 | right = SvUVX(svr); |
| 5479d192 NC |
1276 | } |
| 1277 | else { | |
| 800401ee | 1278 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1279 | if (biv >= 0) { |
| 1280 | right = biv; | |
| 1281 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1282 | } | |
| 1283 | else { | |
| 1284 | right = -biv; | |
| 1285 | } | |
| 1286 | } | |
| 1287 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1288 | warning before dieing, hence this test goes here. | |
| 1289 | If it were immediately before the second SvIV_please, then | |
| 1290 | DIE() would be invoked before left was even inspected, so | |
| 1291 | no inpsection would give no warning. */ | |
| 1292 | if (right == 0) | |
| 1293 | DIE(aTHX_ "Illegal division by zero"); | |
| 1294 | ||
| 1295 | if (left_non_neg) { | |
| 800401ee | 1296 | left = SvUVX(svl); |
| 5479d192 NC |
1297 | } |
| 1298 | else { | |
| 800401ee | 1299 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1300 | if (aiv >= 0) { |
| 1301 | left = aiv; | |
| 1302 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1303 | } | |
| 1304 | else { | |
| 1305 | left = -aiv; | |
| 1306 | } | |
| 1307 | } | |
| 1308 | ||
| 1309 | if (left >= right | |
| 1310 | #ifdef SLOPPYDIVIDE | |
| 1311 | /* For sloppy divide we always attempt integer division. */ | |
| 1312 | #else | |
| 1313 | /* Otherwise we only attempt it if either or both operands | |
| 1314 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1315 | we fall through to the NV divide code below. However, |
| 1316 | as left >= right to ensure integer result here, we know that | |
| 1317 | we can skip the test on the right operand - right big | |
| 1318 | enough not to be preserved can't get here unless left is | |
| 1319 | also too big. */ | |
| 1320 | ||
| 1321 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1322 | #endif |
| 1323 | ) { | |
| 1324 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1325 | const UV result = left / right; |
| 5479d192 NC |
1326 | if (result * right == left) { |
| 1327 | SP--; /* result is valid */ | |
| 1328 | if (left_non_neg == right_non_neg) { | |
| 1329 | /* signs identical, result is positive. */ | |
| 1330 | SETu( result ); | |
| 1331 | RETURN; | |
| 1332 | } | |
| 1333 | /* 2s complement assumption */ | |
| 1334 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1335 | SETi( -(IV)result ); |
| 5479d192 NC |
1336 | else { |
| 1337 | /* It's exact but too negative for IV. */ | |
| 1338 | SETn( -(NV)result ); | |
| 1339 | } | |
| 1340 | RETURN; | |
| 1341 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1342 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1343 | } /* left wasn't SvIOK */ |
| 1344 | } /* right wasn't SvIOK */ | |
| 1345 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1346 | { | |
| 6f1401dc DM |
1347 | NV right = SvNV_nomg(svr); |
| 1348 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1349 | (void)POPs;(void)POPs; |
| ebc6a117 PD |
1350 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1351 | if (! Perl_isnan(right) && right == 0.0) | |
| 1352 | #else | |
| 5479d192 | 1353 | if (right == 0.0) |
| ebc6a117 | 1354 | #endif |
| 5479d192 NC |
1355 | DIE(aTHX_ "Illegal division by zero"); |
| 1356 | PUSHn( left / right ); | |
| 1357 | RETURN; | |
| 79072805 | 1358 | } |
| a0d0e21e LW |
1359 | } |
| 1360 | ||
| 1361 | PP(pp_modulo) | |
| 1362 | { | |
| 6f1401dc DM |
1363 | dVAR; dSP; dATARGET; |
| 1364 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
| a0d0e21e | 1365 | { |
| 9c5ffd7c JH |
1366 | UV left = 0; |
| 1367 | UV right = 0; | |
| dc656993 JH |
1368 | bool left_neg = FALSE; |
| 1369 | bool right_neg = FALSE; | |
| e2c88acc NC |
1370 | bool use_double = FALSE; |
| 1371 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1372 | NV dright = 0.0; |
| 1373 | NV dleft = 0.0; | |
| 6f1401dc DM |
1374 | SV * const svr = TOPs; |
| 1375 | SV * const svl = TOPm1s; | |
| 1376 | SvIV_please_nomg(svr); | |
| 800401ee JH |
1377 | if (SvIOK(svr)) { |
| 1378 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1379 | if (!right_neg) { |
| 800401ee | 1380 | right = SvUVX(svr); |
| e2c88acc | 1381 | } else { |
| 800401ee | 1382 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1383 | if (biv >= 0) { |
| 1384 | right = biv; | |
| 1385 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1386 | } else { | |
| 1387 | right = -biv; | |
| 1388 | } | |
| 1389 | } | |
| 1390 | } | |
| 1391 | else { | |
| 6f1401dc | 1392 | dright = SvNV_nomg(svr); |
| 787eafbd IZ |
1393 | right_neg = dright < 0; |
| 1394 | if (right_neg) | |
| 1395 | dright = -dright; | |
| e2c88acc NC |
1396 | if (dright < UV_MAX_P1) { |
| 1397 | right = U_V(dright); | |
| 1398 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1399 | } else { | |
| 1400 | use_double = TRUE; | |
| 1401 | } | |
| 787eafbd | 1402 | } |
| a0d0e21e | 1403 | |
| e2c88acc NC |
1404 | /* At this point use_double is only true if right is out of range for |
| 1405 | a UV. In range NV has been rounded down to nearest UV and | |
| 1406 | use_double false. */ | |
| 6f1401dc | 1407 | SvIV_please_nomg(svl); |
| 800401ee JH |
1408 | if (!use_double && SvIOK(svl)) { |
| 1409 | if (SvIOK(svl)) { | |
| 1410 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1411 | if (!left_neg) { |
| 800401ee | 1412 | left = SvUVX(svl); |
| e2c88acc | 1413 | } else { |
| 800401ee | 1414 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1415 | if (aiv >= 0) { |
| 1416 | left = aiv; | |
| 1417 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1418 | } else { | |
| 1419 | left = -aiv; | |
| 1420 | } | |
| 1421 | } | |
| 1422 | } | |
| 1423 | } | |
| 787eafbd | 1424 | else { |
| 6f1401dc | 1425 | dleft = SvNV_nomg(svl); |
| 787eafbd IZ |
1426 | left_neg = dleft < 0; |
| 1427 | if (left_neg) | |
| 1428 | dleft = -dleft; | |
| 68dc0745 | 1429 | |
| e2c88acc NC |
1430 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1431 | both in range for UV then use U_V() rather than floor. */ | |
| 1432 | if (!use_double) { | |
| 1433 | if (dleft < UV_MAX_P1) { | |
| 1434 | /* right was in range, so is dleft, so use UVs not double. | |
| 1435 | */ | |
| 1436 | left = U_V(dleft); | |
| 1437 | } | |
| 1438 | /* left is out of range for UV, right was in range, so promote | |
| 1439 | right (back) to double. */ | |
| 1440 | else { | |
| 1441 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1442 | consistent with the implicit +0 floor in the U_V() | |
| 1443 | inside the #if 1. */ | |
| 1444 | dleft = Perl_floor(dleft + 0.5); | |
| 1445 | use_double = TRUE; | |
| 1446 | if (dright_valid) | |
| 1447 | dright = Perl_floor(dright + 0.5); | |
| 1448 | else | |
| 1449 | dright = right; | |
| 1450 | } | |
| 1451 | } | |
| 1452 | } | |
| 6f1401dc | 1453 | sp -= 2; |
| 787eafbd | 1454 | if (use_double) { |
| 65202027 | 1455 | NV dans; |
| 787eafbd | 1456 | |
| 787eafbd | 1457 | if (!dright) |
| cea2e8a9 | 1458 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1459 | |
| 65202027 | 1460 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1461 | if ((left_neg != right_neg) && dans) |
| 1462 | dans = dright - dans; | |
| 1463 | if (right_neg) | |
| 1464 | dans = -dans; | |
| 1465 | sv_setnv(TARG, dans); | |
| 1466 | } | |
| 1467 | else { | |
| 1468 | UV ans; | |
| 1469 | ||
| 787eafbd | 1470 | if (!right) |
| cea2e8a9 | 1471 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1472 | |
| 1473 | ans = left % right; | |
| 1474 | if ((left_neg != right_neg) && ans) | |
| 1475 | ans = right - ans; | |
| 1476 | if (right_neg) { | |
| 1477 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1478 | /* could change -foo to be (~foo)+1 instead */ | |
| 1479 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1480 | sv_setiv(TARG, ~ans+1); | |
| 1481 | else | |
| 65202027 | 1482 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1483 | } |
| 1484 | else | |
| 1485 | sv_setuv(TARG, ans); | |
| 1486 | } | |
| 1487 | PUSHTARG; | |
| 1488 | RETURN; | |
| 79072805 | 1489 | } |
| a0d0e21e | 1490 | } |
| 79072805 | 1491 | |
| a0d0e21e LW |
1492 | PP(pp_repeat) |
| 1493 | { | |
| 6f1401dc | 1494 | dVAR; dSP; dATARGET; |
| 2b573ace | 1495 | register IV count; |
| 6f1401dc DM |
1496 | SV *sv; |
| 1497 | ||
| 1498 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1499 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
| 1500 | sv = POPs; | |
| 1501 | SvGETMAGIC(sv); | |
| 1502 | } | |
| 1503 | else { | |
| 1504 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
| 1505 | sv = POPs; | |
| 1506 | } | |
| 1507 | ||
| 2b573ace JH |
1508 | if (SvIOKp(sv)) { |
| 1509 | if (SvUOK(sv)) { | |
| 6f1401dc | 1510 | const UV uv = SvUV_nomg(sv); |
| 2b573ace JH |
1511 | if (uv > IV_MAX) |
| 1512 | count = IV_MAX; /* The best we can do? */ | |
| 1513 | else | |
| 1514 | count = uv; | |
| 1515 | } else { | |
| 6f1401dc | 1516 | const IV iv = SvIV_nomg(sv); |
| 2b573ace JH |
1517 | if (iv < 0) |
| 1518 | count = 0; | |
| 1519 | else | |
| 1520 | count = iv; | |
| 1521 | } | |
| 1522 | } | |
| 1523 | else if (SvNOKp(sv)) { | |
| 6f1401dc | 1524 | const NV nv = SvNV_nomg(sv); |
| 2b573ace JH |
1525 | if (nv < 0.0) |
| 1526 | count = 0; | |
| 1527 | else | |
| 1528 | count = (IV)nv; | |
| 1529 | } | |
| 1530 | else | |
| 6f1401dc DM |
1531 | count = SvIV_nomg(sv); |
| 1532 | ||
| 533c011a | 1533 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1534 | dMARK; |
| 0bd48802 AL |
1535 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1536 | const I32 items = SP - MARK; | |
| 1537 | const I32 max = items * count; | |
| 79072805 | 1538 | |
| 2b573ace JH |
1539 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1540 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1541 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1542 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1543 | MEXTEND(MARK, max); |
| 1544 | if (count > 1) { | |
| 1545 | while (SP > MARK) { | |
| 976c8a39 JH |
1546 | #if 0 |
| 1547 | /* This code was intended to fix 20010809.028: | |
| 1548 | ||
| 1549 | $x = 'abcd'; | |
| 1550 | for (($x =~ /./g) x 2) { | |
| 1551 | print chop; # "abcdabcd" expected as output. | |
| 1552 | } | |
| 1553 | ||
| 1554 | * but that change (#11635) broke this code: | |
| 1555 | ||
| 1556 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1557 | ||
| 1558 | * I can't think of a better fix that doesn't introduce | |
| 1559 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1560 | * refcounted, and mortalisation obviously doesn't | |
| 1561 | * Do The Right Thing when the stack has more than | |
| 1562 | * one pointer to the same mortal value. | |
| 1563 | * .robin. | |
| 1564 | */ | |
| e30acc16 RH |
1565 | if (*SP) { |
| 1566 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1567 | SvREADONLY_on(*SP); | |
| 1568 | } | |
| 976c8a39 JH |
1569 | #else |
| 1570 | if (*SP) | |
| 1571 | SvTEMP_off((*SP)); | |
| 1572 | #endif | |
| a0d0e21e | 1573 | SP--; |
| 79072805 | 1574 | } |
| a0d0e21e LW |
1575 | MARK++; |
| 1576 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| ad64d0ec | 1577 | items * sizeof(const SV *), count - 1); |
| a0d0e21e | 1578 | SP += max; |
| 79072805 | 1579 | } |
| a0d0e21e LW |
1580 | else if (count <= 0) |
| 1581 | SP -= items; | |
| 79072805 | 1582 | } |
| a0d0e21e | 1583 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1584 | SV * const tmpstr = POPs; |
| a0d0e21e | 1585 | STRLEN len; |
| 9b877dbb | 1586 | bool isutf; |
| 2b573ace JH |
1587 | static const char oom_string_extend[] = |
| 1588 | "Out of memory during string extend"; | |
| a0d0e21e | 1589 | |
| 6f1401dc DM |
1590 | if (TARG != tmpstr) |
| 1591 | sv_setsv_nomg(TARG, tmpstr); | |
| 1592 | SvPV_force_nomg(TARG, len); | |
| 9b877dbb | 1593 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1594 | if (count != 1) { |
| 1595 | if (count < 1) | |
| 1596 | SvCUR_set(TARG, 0); | |
| 1597 | else { | |
| c445ea15 | 1598 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1599 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1600 | Perl_croak(aTHX_ oom_string_extend); |
| 1601 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1602 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1603 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1604 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1605 | } |
| a0d0e21e | 1606 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1607 | } |
| dfcb284a GS |
1608 | if (isutf) |
| 1609 | (void)SvPOK_only_UTF8(TARG); | |
| 1610 | else | |
| 1611 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1612 | |
| 1613 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1614 | /* The parser saw this as a list repeat, and there | |
| 1615 | are probably several items on the stack. But we're | |
| 1616 | in scalar context, and there's no pp_list to save us | |
| 1617 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1618 | */ | |
| 1619 | dMARK; | |
| 1620 | SP = MARK; | |
| 1621 | } | |
| a0d0e21e | 1622 | PUSHTARG; |
| 79072805 | 1623 | } |
| a0d0e21e LW |
1624 | RETURN; |
| 1625 | } | |
| 79072805 | 1626 | |
| a0d0e21e LW |
1627 | PP(pp_subtract) |
| 1628 | { | |
| 800401ee | 1629 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 6f1401dc DM |
1630 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
| 1631 | svr = TOPs; | |
| 1632 | svl = TOPm1s; | |
| 800401ee | 1633 | useleft = USE_LEFT(svl); |
| 28e5dec8 | 1634 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1635 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1636 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 6f1401dc | 1637 | SvIV_please_nomg(svr); |
| 800401ee | 1638 | if (SvIOK(svr)) { |
| 28e5dec8 JH |
1639 | /* Unless the left argument is integer in range we are going to have to |
| 1640 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1641 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1642 | register UV auv = 0; |
| 1643 | bool auvok = FALSE; | |
| 7dca457a NC |
1644 | bool a_valid = 0; |
| 1645 | ||
| 28e5dec8 | 1646 | if (!useleft) { |
| 7dca457a NC |
1647 | auv = 0; |
| 1648 | a_valid = auvok = 1; | |
| 1649 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1650 | } else { |
| 1651 | /* Left operand is defined, so is it IV? */ | |
| 6f1401dc | 1652 | SvIV_please_nomg(svl); |
| 800401ee JH |
1653 | if (SvIOK(svl)) { |
| 1654 | if ((auvok = SvUOK(svl))) | |
| 1655 | auv = SvUVX(svl); | |
| 7dca457a | 1656 | else { |
| 800401ee | 1657 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1658 | if (aiv >= 0) { |
| 1659 | auv = aiv; | |
| 1660 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1661 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1662 | auv = (UV)-aiv; | |
| 28e5dec8 | 1663 | } |
| 7dca457a NC |
1664 | } |
| 1665 | a_valid = 1; | |
| 1666 | } | |
| 1667 | } | |
| 1668 | if (a_valid) { | |
| 1669 | bool result_good = 0; | |
| 1670 | UV result; | |
| 1671 | register UV buv; | |
| 800401ee | 1672 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1673 | |
| 7dca457a | 1674 | if (buvok) |
| 800401ee | 1675 | buv = SvUVX(svr); |
| 7dca457a | 1676 | else { |
| 800401ee | 1677 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1678 | if (biv >= 0) { |
| 1679 | buv = biv; | |
| 1680 | buvok = 1; | |
| 1681 | } else | |
| 1682 | buv = (UV)-biv; | |
| 1683 | } | |
| 1684 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1685 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1686 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1687 | a - b => (a - b) | |
| 1688 | A - b => -(a + b) | |
| 1689 | a - B => (a + b) | |
| 1690 | A - B => -(a - b) | |
| 1691 | all UV maths. negate result if A negative. | |
| 1692 | subtract if signs same, add if signs differ. */ | |
| 1693 | ||
| 1694 | if (auvok ^ buvok) { | |
| 1695 | /* Signs differ. */ | |
| 1696 | result = auv + buv; | |
| 1697 | if (result >= auv) | |
| 1698 | result_good = 1; | |
| 1699 | } else { | |
| 1700 | /* Signs same */ | |
| 1701 | if (auv >= buv) { | |
| 1702 | result = auv - buv; | |
| 1703 | /* Must get smaller */ | |
| 1704 | if (result <= auv) | |
| 1705 | result_good = 1; | |
| 1706 | } else { | |
| 1707 | result = buv - auv; | |
| 1708 | if (result <= buv) { | |
| 1709 | /* result really should be -(auv-buv). as its negation | |
| 1710 | of true value, need to swap our result flag */ | |
| 1711 | auvok = !auvok; | |
| 1712 | result_good = 1; | |
| 28e5dec8 | 1713 | } |
| 28e5dec8 JH |
1714 | } |
| 1715 | } | |
| 7dca457a NC |
1716 | if (result_good) { |
| 1717 | SP--; | |
| 1718 | if (auvok) | |
| 1719 | SETu( result ); | |
| 1720 | else { | |
| 1721 | /* Negate result */ | |
| 1722 | if (result <= (UV)IV_MIN) | |
| 1723 | SETi( -(IV)result ); | |
| 1724 | else { | |
| 1725 | /* result valid, but out of range for IV. */ | |
| 1726 | SETn( -(NV)result ); | |
| 1727 | } | |
| 1728 | } | |
| 1729 | RETURN; | |
| 1730 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1731 | } |
| 1732 | } | |
| 1733 | #endif | |
| a0d0e21e | 1734 | { |
| 6f1401dc | 1735 | NV value = SvNV_nomg(svr); |
| 4efa5a16 RD |
1736 | (void)POPs; |
| 1737 | ||
| 28e5dec8 JH |
1738 | if (!useleft) { |
| 1739 | /* left operand is undef, treat as zero - value */ | |
| 1740 | SETn(-value); | |
| 1741 | RETURN; | |
| 1742 | } | |
| 6f1401dc | 1743 | SETn( SvNV_nomg(svl) - value ); |
| 28e5dec8 | 1744 | RETURN; |
| 79072805 | 1745 | } |
| a0d0e21e | 1746 | } |
| 79072805 | 1747 | |
| a0d0e21e LW |
1748 | PP(pp_left_shift) |
| 1749 | { | |
| 6f1401dc DM |
1750 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1751 | tryAMAGICbin_MG(lshift_amg, AMGf_assign); | |
| 1752 | svr = POPs; | |
| 1753 | svl = TOPs; | |
| a0d0e21e | 1754 | { |
| 6f1401dc | 1755 | const IV shift = SvIV_nomg(svr); |
| d0ba1bd2 | 1756 | if (PL_op->op_private & HINT_INTEGER) { |
| 6f1401dc | 1757 | const IV i = SvIV_nomg(svl); |
| 972b05a9 | 1758 | SETi(i << shift); |
| d0ba1bd2 JH |
1759 | } |
| 1760 | else { | |
| 6f1401dc | 1761 | const UV u = SvUV_nomg(svl); |
| 972b05a9 | 1762 | SETu(u << shift); |
| d0ba1bd2 | 1763 | } |
| 55497cff | 1764 | RETURN; |
| 79072805 | 1765 | } |
| a0d0e21e | 1766 | } |
| 79072805 | 1767 | |
| a0d0e21e LW |
1768 | PP(pp_right_shift) |
| 1769 | { | |
| 6f1401dc DM |
1770 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1771 | tryAMAGICbin_MG(rshift_amg, AMGf_assign); | |
| 1772 | svr = POPs; | |
| 1773 | svl = TOPs; | |
| a0d0e21e | 1774 | { |
| 6f1401dc | 1775 | const IV shift = SvIV_nomg(svr); |
| d0ba1bd2 | 1776 | if (PL_op->op_private & HINT_INTEGER) { |
| 6f1401dc | 1777 | const IV i = SvIV_nomg(svl); |
| 972b05a9 | 1778 | SETi(i >> shift); |
| d0ba1bd2 JH |
1779 | } |
| 1780 | else { | |
| 6f1401dc | 1781 | const UV u = SvUV_nomg(svl); |
| 972b05a9 | 1782 | SETu(u >> shift); |
| d0ba1bd2 | 1783 | } |
| a0d0e21e | 1784 | RETURN; |
| 93a17b20 | 1785 | } |
| 79072805 LW |
1786 | } |
| 1787 | ||
| a0d0e21e | 1788 | PP(pp_lt) |
| 79072805 | 1789 | { |
| 6f1401dc DM |
1790 | dVAR; dSP; |
| 1791 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
| 28e5dec8 | 1792 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1793 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 1794 | if (SvIOK(TOPs)) { |
| 6f1401dc | 1795 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
1796 | if (SvIOK(TOPm1s)) { |
| 1797 | bool auvok = SvUOK(TOPm1s); | |
| 1798 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1799 | |
| 28e5dec8 | 1800 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1801 | const IV aiv = SvIVX(TOPm1s); |
| 1802 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1803 | |
| 1804 | SP--; | |
| 1805 | SETs(boolSV(aiv < biv)); | |
| 1806 | RETURN; | |
| 1807 | } | |
| 1808 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1809 | const UV auv = SvUVX(TOPm1s); |
| 1810 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1811 | |
| 1812 | SP--; | |
| 1813 | SETs(boolSV(auv < buv)); | |
| 1814 | RETURN; | |
| 1815 | } | |
| 1816 | if (auvok) { /* ## UV < IV ## */ | |
| 1817 | UV auv; | |
| 1b6737cc | 1818 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1819 | SP--; |
| 1820 | if (biv < 0) { | |
| 1821 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1822 | SETs(&PL_sv_no); | |
| 1823 | RETURN; | |
| 1824 | } | |
| 1825 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1826 | SETs(boolSV(auv < (UV)biv)); |
| 1827 | RETURN; | |
| 1828 | } | |
| 1829 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1830 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1831 | UV buv; |
| 1832 | ||
| 28e5dec8 JH |
1833 | if (aiv < 0) { |
| 1834 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1835 | SP--; | |
| 1836 | SETs(&PL_sv_yes); | |
| 1837 | RETURN; | |
| 1838 | } | |
| 1839 | buv = SvUVX(TOPs); | |
| 1840 | SP--; | |
| 28e5dec8 JH |
1841 | SETs(boolSV((UV)aiv < buv)); |
| 1842 | RETURN; | |
| 1843 | } | |
| 1844 | } | |
| 1845 | } | |
| 1846 | #endif | |
| 30de85b6 | 1847 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1848 | #ifdef PERL_PRESERVE_IVUV |
| 1849 | else | |
| 1850 | #endif | |
| ed3b9b3c | 1851 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bdaccee NC |
1852 | SP--; |
| 1853 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1854 | RETURN; | |
| 1855 | } | |
| 30de85b6 | 1856 | #endif |
| a0d0e21e | 1857 | { |
| cab190d4 | 1858 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 1859 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
1860 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 1861 | RETSETNO; | |
| 1862 | SETs(boolSV(left < right)); | |
| 1863 | #else | |
| 6f1401dc DM |
1864 | dPOPnv_nomg; |
| 1865 | SETs(boolSV(SvNV_nomg(TOPs) < value)); | |
| cab190d4 | 1866 | #endif |
| a0d0e21e | 1867 | RETURN; |
| 79072805 | 1868 | } |
| a0d0e21e | 1869 | } |
| 79072805 | 1870 | |
| a0d0e21e LW |
1871 | PP(pp_gt) |
| 1872 | { | |
| 6f1401dc DM |
1873 | dVAR; dSP; |
| 1874 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
| 28e5dec8 | 1875 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1876 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 1877 | if (SvIOK(TOPs)) { |
| 6f1401dc | 1878 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
1879 | if (SvIOK(TOPm1s)) { |
| 1880 | bool auvok = SvUOK(TOPm1s); | |
| 1881 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1882 | |
| 28e5dec8 | 1883 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1884 | const IV aiv = SvIVX(TOPm1s); |
| 1885 | const IV biv = SvIVX(TOPs); | |
| 1886 | ||
| 28e5dec8 JH |
1887 | SP--; |
| 1888 | SETs(boolSV(aiv > biv)); | |
| 1889 | RETURN; | |
| 1890 | } | |
| 1891 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1892 | const UV auv = SvUVX(TOPm1s); |
| 1893 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1894 | |
| 1895 | SP--; | |
| 1896 | SETs(boolSV(auv > buv)); | |
| 1897 | RETURN; | |
| 1898 | } | |
| 1899 | if (auvok) { /* ## UV > IV ## */ | |
| 1900 | UV auv; | |
| 1b6737cc AL |
1901 | const IV biv = SvIVX(TOPs); |
| 1902 | ||
| 28e5dec8 JH |
1903 | SP--; |
| 1904 | if (biv < 0) { | |
| 1905 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1906 | SETs(&PL_sv_yes); | |
| 1907 | RETURN; | |
| 1908 | } | |
| 1909 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1910 | SETs(boolSV(auv > (UV)biv)); |
| 1911 | RETURN; | |
| 1912 | } | |
| 1913 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1914 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1915 | UV buv; |
| 1916 | ||
| 28e5dec8 JH |
1917 | if (aiv < 0) { |
| 1918 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1919 | SP--; | |
| 1920 | SETs(&PL_sv_no); | |
| 1921 | RETURN; | |
| 1922 | } | |
| 1923 | buv = SvUVX(TOPs); | |
| 1924 | SP--; | |
| 28e5dec8 JH |
1925 | SETs(boolSV((UV)aiv > buv)); |
| 1926 | RETURN; | |
| 1927 | } | |
| 1928 | } | |
| 1929 | } | |
| 1930 | #endif | |
| 30de85b6 | 1931 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1932 | #ifdef PERL_PRESERVE_IVUV |
| 1933 | else | |
| 1934 | #endif | |
| ed3b9b3c | 1935 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1936 | SP--; |
| 1937 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1938 | RETURN; | |
| 1939 | } | |
| 1940 | #endif | |
| a0d0e21e | 1941 | { |
| cab190d4 | 1942 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 1943 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
1944 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 1945 | RETSETNO; | |
| 1946 | SETs(boolSV(left > right)); | |
| 1947 | #else | |
| 6f1401dc DM |
1948 | dPOPnv_nomg; |
| 1949 | SETs(boolSV(SvNV_nomg(TOPs) > value)); | |
| cab190d4 | 1950 | #endif |
| a0d0e21e | 1951 | RETURN; |
| 79072805 | 1952 | } |
| a0d0e21e LW |
1953 | } |
| 1954 | ||
| 1955 | PP(pp_le) | |
| 1956 | { | |
| 6f1401dc DM |
1957 | dVAR; dSP; |
| 1958 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
| 28e5dec8 | 1959 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1960 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 1961 | if (SvIOK(TOPs)) { |
| 6f1401dc | 1962 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
1963 | if (SvIOK(TOPm1s)) { |
| 1964 | bool auvok = SvUOK(TOPm1s); | |
| 1965 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1966 | |
| 28e5dec8 | 1967 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1968 | const IV aiv = SvIVX(TOPm1s); |
| 1969 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1970 | |
| 1971 | SP--; | |
| 1972 | SETs(boolSV(aiv <= biv)); | |
| 1973 | RETURN; | |
| 1974 | } | |
| 1975 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1976 | UV auv = SvUVX(TOPm1s); | |
| 1977 | UV buv = SvUVX(TOPs); | |
| 1978 | ||
| 1979 | SP--; | |
| 1980 | SETs(boolSV(auv <= buv)); | |
| 1981 | RETURN; | |
| 1982 | } | |
| 1983 | if (auvok) { /* ## UV <= IV ## */ | |
| 1984 | UV auv; | |
| 1b6737cc AL |
1985 | const IV biv = SvIVX(TOPs); |
| 1986 | ||
| 28e5dec8 JH |
1987 | SP--; |
| 1988 | if (biv < 0) { | |
| 1989 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1990 | SETs(&PL_sv_no); | |
| 1991 | RETURN; | |
| 1992 | } | |
| 1993 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1994 | SETs(boolSV(auv <= (UV)biv)); |
| 1995 | RETURN; | |
| 1996 | } | |
| 1997 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1998 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1999 | UV buv; |
| 1b6737cc | 2000 | |
| 28e5dec8 JH |
2001 | if (aiv < 0) { |
| 2002 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 2003 | SP--; | |
| 2004 | SETs(&PL_sv_yes); | |
| 2005 | RETURN; | |
| 2006 | } | |
| 2007 | buv = SvUVX(TOPs); | |
| 2008 | SP--; | |
| 28e5dec8 JH |
2009 | SETs(boolSV((UV)aiv <= buv)); |
| 2010 | RETURN; | |
| 2011 | } | |
| 2012 | } | |
| 2013 | } | |
| 2014 | #endif | |
| 30de85b6 | 2015 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2016 | #ifdef PERL_PRESERVE_IVUV |
| 2017 | else | |
| 2018 | #endif | |
| ed3b9b3c | 2019 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2020 | SP--; |
| 2021 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 2022 | RETURN; | |
| 2023 | } | |
| 2024 | #endif | |
| a0d0e21e | 2025 | { |
| cab190d4 | 2026 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2027 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2028 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2029 | RETSETNO; | |
| 2030 | SETs(boolSV(left <= right)); | |
| 2031 | #else | |
| 6f1401dc DM |
2032 | dPOPnv_nomg; |
| 2033 | SETs(boolSV(SvNV_nomg(TOPs) <= value)); | |
| cab190d4 | 2034 | #endif |
| a0d0e21e | 2035 | RETURN; |
| 79072805 | 2036 | } |
| a0d0e21e LW |
2037 | } |
| 2038 | ||
| 2039 | PP(pp_ge) | |
| 2040 | { | |
| 6f1401dc DM |
2041 | dVAR; dSP; |
| 2042 | tryAMAGICbin_MG(ge_amg,AMGf_set); | |
| 28e5dec8 | 2043 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2044 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2045 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2046 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2047 | if (SvIOK(TOPm1s)) { |
| 2048 | bool auvok = SvUOK(TOPm1s); | |
| 2049 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2050 | |
| 28e5dec8 | 2051 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2052 | const IV aiv = SvIVX(TOPm1s); |
| 2053 | const IV biv = SvIVX(TOPs); | |
| 2054 | ||
| 28e5dec8 JH |
2055 | SP--; |
| 2056 | SETs(boolSV(aiv >= biv)); | |
| 2057 | RETURN; | |
| 2058 | } | |
| 2059 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2060 | const UV auv = SvUVX(TOPm1s); |
| 2061 | const UV buv = SvUVX(TOPs); | |
| 2062 | ||
| 28e5dec8 JH |
2063 | SP--; |
| 2064 | SETs(boolSV(auv >= buv)); | |
| 2065 | RETURN; | |
| 2066 | } | |
| 2067 | if (auvok) { /* ## UV >= IV ## */ | |
| 2068 | UV auv; | |
| 1b6737cc AL |
2069 | const IV biv = SvIVX(TOPs); |
| 2070 | ||
| 28e5dec8 JH |
2071 | SP--; |
| 2072 | if (biv < 0) { | |
| 2073 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2074 | SETs(&PL_sv_yes); | |
| 2075 | RETURN; | |
| 2076 | } | |
| 2077 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2078 | SETs(boolSV(auv >= (UV)biv)); |
| 2079 | RETURN; | |
| 2080 | } | |
| 2081 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2082 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2083 | UV buv; |
| 1b6737cc | 2084 | |
| 28e5dec8 JH |
2085 | if (aiv < 0) { |
| 2086 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2087 | SP--; | |
| 2088 | SETs(&PL_sv_no); | |
| 2089 | RETURN; | |
| 2090 | } | |
| 2091 | buv = SvUVX(TOPs); | |
| 2092 | SP--; | |
| 28e5dec8 JH |
2093 | SETs(boolSV((UV)aiv >= buv)); |
| 2094 | RETURN; | |
| 2095 | } | |
| 2096 | } | |
| 2097 | } | |
| 2098 | #endif | |
| 30de85b6 | 2099 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2100 | #ifdef PERL_PRESERVE_IVUV |
| 2101 | else | |
| 2102 | #endif | |
| ed3b9b3c | 2103 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2104 | SP--; |
| 2105 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2106 | RETURN; | |
| 2107 | } | |
| 2108 | #endif | |
| a0d0e21e | 2109 | { |
| cab190d4 | 2110 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2111 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2112 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2113 | RETSETNO; | |
| 2114 | SETs(boolSV(left >= right)); | |
| 2115 | #else | |
| 6f1401dc DM |
2116 | dPOPnv_nomg; |
| 2117 | SETs(boolSV(SvNV_nomg(TOPs) >= value)); | |
| cab190d4 | 2118 | #endif |
| a0d0e21e | 2119 | RETURN; |
| 79072805 | 2120 | } |
| a0d0e21e | 2121 | } |
| 79072805 | 2122 | |
| a0d0e21e LW |
2123 | PP(pp_ne) |
| 2124 | { | |
| 6f1401dc DM |
2125 | dVAR; dSP; |
| 2126 | tryAMAGICbin_MG(ne_amg,AMGf_set); | |
| 3bb2c415 | 2127 | #ifndef NV_PRESERVES_UV |
| ed3b9b3c | 2128 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2129 | SP--; |
| 2130 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2131 | RETURN; |
| 2132 | } | |
| 2133 | #endif | |
| 28e5dec8 | 2134 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2135 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2136 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2137 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 | 2138 | if (SvIOK(TOPm1s)) { |
| 0bd48802 AL |
2139 | const bool auvok = SvUOK(TOPm1s); |
| 2140 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2141 | |
| 30de85b6 NC |
2142 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2143 | /* Casting IV to UV before comparison isn't going to matter | |
| 2144 | on 2s complement. On 1s complement or sign&magnitude | |
| 2145 | (if we have any of them) it could make negative zero | |
| 2146 | differ from normal zero. As I understand it. (Need to | |
| 2147 | check - is negative zero implementation defined behaviour | |
| 2148 | anyway?). NWC */ | |
| 1b6737cc AL |
2149 | const UV buv = SvUVX(POPs); |
| 2150 | const UV auv = SvUVX(TOPs); | |
| 2151 | ||
| 28e5dec8 JH |
2152 | SETs(boolSV(auv != buv)); |
| 2153 | RETURN; | |
| 2154 | } | |
| 2155 | { /* ## Mixed IV,UV ## */ | |
| 2156 | IV iv; | |
| 2157 | UV uv; | |
| 2158 | ||
| 2159 | /* != is commutative so swap if needed (save code) */ | |
| 2160 | if (auvok) { | |
| 2161 | /* swap. top of stack (b) is the iv */ | |
| 2162 | iv = SvIVX(TOPs); | |
| 2163 | SP--; | |
| 2164 | if (iv < 0) { | |
| 2165 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2166 | SETs(&PL_sv_yes); | |
| 2167 | RETURN; | |
| 2168 | } | |
| 2169 | uv = SvUVX(TOPs); | |
| 2170 | } else { | |
| 2171 | iv = SvIVX(TOPm1s); | |
| 2172 | SP--; | |
| 2173 | if (iv < 0) { | |
| 2174 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2175 | SETs(&PL_sv_yes); | |
| 2176 | RETURN; | |
| 2177 | } | |
| 2178 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2179 | } | |
| 28e5dec8 JH |
2180 | SETs(boolSV((UV)iv != uv)); |
| 2181 | RETURN; | |
| 2182 | } | |
| 2183 | } | |
| 2184 | } | |
| 2185 | #endif | |
| a0d0e21e | 2186 | { |
| cab190d4 | 2187 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2188 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2189 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2190 | RETSETYES; | |
| 2191 | SETs(boolSV(left != right)); | |
| 2192 | #else | |
| 6f1401dc DM |
2193 | dPOPnv_nomg; |
| 2194 | SETs(boolSV(SvNV_nomg(TOPs) != value)); | |
| cab190d4 | 2195 | #endif |
| a0d0e21e LW |
2196 | RETURN; |
| 2197 | } | |
| 79072805 LW |
2198 | } |
| 2199 | ||
| a0d0e21e | 2200 | PP(pp_ncmp) |
| 79072805 | 2201 | { |
| 6f1401dc DM |
2202 | dVAR; dSP; dTARGET; |
| 2203 | tryAMAGICbin_MG(ncmp_amg, 0); | |
| d8c7644e | 2204 | #ifndef NV_PRESERVES_UV |
| ed3b9b3c | 2205 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2206 | const UV right = PTR2UV(SvRV(POPs)); |
| 2207 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2208 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2209 | RETURN; |
| 2210 | } | |
| 2211 | #endif | |
| 28e5dec8 JH |
2212 | #ifdef PERL_PRESERVE_IVUV |
| 2213 | /* Fortunately it seems NaN isn't IOK */ | |
| 6f1401dc | 2214 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2215 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2216 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 | 2217 | if (SvIOK(TOPm1s)) { |
| 1b6737cc AL |
2218 | const bool leftuvok = SvUOK(TOPm1s); |
| 2219 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2220 | I32 value; |
| 2221 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2222 | const IV leftiv = SvIVX(TOPm1s); |
| 2223 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2224 | |
| 2225 | if (leftiv > rightiv) | |
| 2226 | value = 1; | |
| 2227 | else if (leftiv < rightiv) | |
| 2228 | value = -1; | |
| 2229 | else | |
| 2230 | value = 0; | |
| 2231 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2232 | const UV leftuv = SvUVX(TOPm1s); |
| 2233 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2234 | |
| 2235 | if (leftuv > rightuv) | |
| 2236 | value = 1; | |
| 2237 | else if (leftuv < rightuv) | |
| 2238 | value = -1; | |
| 2239 | else | |
| 2240 | value = 0; | |
| 2241 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2242 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2243 | if (rightiv < 0) { |
| 2244 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2245 | value = 1; | |
| 2246 | } else { | |
| 1b6737cc | 2247 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2248 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2249 | value = 1; |
| 2250 | } else if (leftuv < (UV)rightiv) { | |
| 2251 | value = -1; | |
| 2252 | } else { | |
| 2253 | value = 0; | |
| 2254 | } | |
| 2255 | } | |
| 2256 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2257 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2258 | if (leftiv < 0) { |
| 2259 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2260 | value = -1; | |
| 2261 | } else { | |
| 1b6737cc | 2262 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2263 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2264 | value = 1; |
| 83bac5dd | 2265 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2266 | value = -1; |
| 2267 | } else { | |
| 2268 | value = 0; | |
| 2269 | } | |
| 2270 | } | |
| 2271 | } | |
| 2272 | SP--; | |
| 2273 | SETi(value); | |
| 2274 | RETURN; | |
| 2275 | } | |
| 2276 | } | |
| 2277 | #endif | |
| a0d0e21e | 2278 | { |
| 6f1401dc | 2279 | dPOPTOPnnrl_nomg; |
| a0d0e21e | 2280 | I32 value; |
| 79072805 | 2281 | |
| a3540c92 | 2282 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2283 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2284 | SETs(&PL_sv_undef); | |
| 2285 | RETURN; | |
| 2286 | } | |
| 2287 | value = (left > right) - (left < right); | |
| 2288 | #else | |
| ff0cee69 | 2289 | if (left == right) |
| a0d0e21e | 2290 | value = 0; |
| a0d0e21e LW |
2291 | else if (left < right) |
| 2292 | value = -1; | |
| 44a8e56a | 2293 | else if (left > right) |
| 2294 | value = 1; | |
| 2295 | else { | |
| 3280af22 | 2296 | SETs(&PL_sv_undef); |
| 44a8e56a | 2297 | RETURN; |
| 2298 | } | |
| 1ad04cfd | 2299 | #endif |
| a0d0e21e LW |
2300 | SETi(value); |
| 2301 | RETURN; | |
| 79072805 | 2302 | } |
| a0d0e21e | 2303 | } |
| 79072805 | 2304 | |
| afd9910b | 2305 | PP(pp_sle) |
| a0d0e21e | 2306 | { |
| 97aff369 | 2307 | dVAR; dSP; |
| 79072805 | 2308 | |
| afd9910b NC |
2309 | int amg_type = sle_amg; |
| 2310 | int multiplier = 1; | |
| 2311 | int rhs = 1; | |
| 79072805 | 2312 | |
| afd9910b NC |
2313 | switch (PL_op->op_type) { |
| 2314 | case OP_SLT: | |
| 2315 | amg_type = slt_amg; | |
| 2316 | /* cmp < 0 */ | |
| 2317 | rhs = 0; | |
| 2318 | break; | |
| 2319 | case OP_SGT: | |
| 2320 | amg_type = sgt_amg; | |
| 2321 | /* cmp > 0 */ | |
| 2322 | multiplier = -1; | |
| 2323 | rhs = 0; | |
| 2324 | break; | |
| 2325 | case OP_SGE: | |
| 2326 | amg_type = sge_amg; | |
| 2327 | /* cmp >= 0 */ | |
| 2328 | multiplier = -1; | |
| 2329 | break; | |
| 79072805 | 2330 | } |
| 79072805 | 2331 | |
| 6f1401dc | 2332 | tryAMAGICbin_MG(amg_type, AMGf_set); |
| a0d0e21e LW |
2333 | { |
| 2334 | dPOPTOPssrl; | |
| 1b6737cc | 2335 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2336 | ? sv_cmp_locale(left, right) |
| 2337 | : sv_cmp(left, right)); | |
| afd9910b | 2338 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2339 | RETURN; |
| 2340 | } | |
| 2341 | } | |
| 79072805 | 2342 | |
| 36477c24 | 2343 | PP(pp_seq) |
| 2344 | { | |
| 6f1401dc DM |
2345 | dVAR; dSP; |
| 2346 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
| 36477c24 | 2347 | { |
| 2348 | dPOPTOPssrl; | |
| 54310121 | 2349 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2350 | RETURN; |
| 2351 | } | |
| 2352 | } | |
| 79072805 | 2353 | |
| a0d0e21e | 2354 | PP(pp_sne) |
| 79072805 | 2355 | { |
| 6f1401dc DM |
2356 | dVAR; dSP; |
| 2357 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
| a0d0e21e LW |
2358 | { |
| 2359 | dPOPTOPssrl; | |
| 54310121 | 2360 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2361 | RETURN; |
| 463ee0b2 | 2362 | } |
| 79072805 LW |
2363 | } |
| 2364 | ||
| a0d0e21e | 2365 | PP(pp_scmp) |
| 79072805 | 2366 | { |
| 6f1401dc DM |
2367 | dVAR; dSP; dTARGET; |
| 2368 | tryAMAGICbin_MG(scmp_amg, 0); | |
| a0d0e21e LW |
2369 | { |
| 2370 | dPOPTOPssrl; | |
| 1b6737cc | 2371 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2372 | ? sv_cmp_locale(left, right) |
| 2373 | : sv_cmp(left, right)); | |
| 2374 | SETi( cmp ); | |
| a0d0e21e LW |
2375 | RETURN; |
| 2376 | } | |
| 2377 | } | |
| 79072805 | 2378 | |
| 55497cff | 2379 | PP(pp_bit_and) |
| 2380 | { | |
| 6f1401dc DM |
2381 | dVAR; dSP; dATARGET; |
| 2382 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
| a0d0e21e LW |
2383 | { |
| 2384 | dPOPTOPssrl; | |
| 4633a7c4 | 2385 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2386 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2387 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2388 | SETi(i); |
| d0ba1bd2 JH |
2389 | } |
| 2390 | else { | |
| 1b6737cc | 2391 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2392 | SETu(u); |
| d0ba1bd2 | 2393 | } |
| a0d0e21e LW |
2394 | } |
| 2395 | else { | |
| 533c011a | 2396 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2397 | SETTARG; |
| 2398 | } | |
| 2399 | RETURN; | |
| 2400 | } | |
| 2401 | } | |
| 79072805 | 2402 | |
| a0d0e21e LW |
2403 | PP(pp_bit_or) |
| 2404 | { | |
| 3658c1f1 NC |
2405 | dVAR; dSP; dATARGET; |
| 2406 | const int op_type = PL_op->op_type; | |
| 2407 | ||
| 6f1401dc | 2408 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
| a0d0e21e LW |
2409 | { |
| 2410 | dPOPTOPssrl; | |
| 4633a7c4 | 2411 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2412 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2413 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2414 | const IV r = SvIV_nomg(right); | |
| 2415 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2416 | SETi(result); | |
| d0ba1bd2 JH |
2417 | } |
| 2418 | else { | |
| 3658c1f1 NC |
2419 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2420 | const UV r = SvUV_nomg(right); | |
| 2421 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2422 | SETu(result); | |
| d0ba1bd2 | 2423 | } |
| a0d0e21e LW |
2424 | } |
| 2425 | else { | |
| 3658c1f1 | 2426 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2427 | SETTARG; |
| 2428 | } | |
| 2429 | RETURN; | |
| 79072805 | 2430 | } |
| a0d0e21e | 2431 | } |
| 79072805 | 2432 | |
| a0d0e21e LW |
2433 | PP(pp_negate) |
| 2434 | { | |
| 6f1401dc DM |
2435 | dVAR; dSP; dTARGET; |
| 2436 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
| a0d0e21e | 2437 | { |
| 6f1401dc | 2438 | SV * const sv = TOPs; |
| 1b6737cc | 2439 | const int flags = SvFLAGS(sv); |
| 28e5dec8 JH |
2440 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2441 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2442 | oops_its_an_int: | |
| 9b0e499b GS |
2443 | if (SvIsUV(sv)) { |
| 2444 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2445 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2446 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2447 | RETURN; | |
| 2448 | } | |
| 2449 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2450 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2451 | RETURN; |
| 2452 | } | |
| 2453 | } | |
| 2454 | else if (SvIVX(sv) != IV_MIN) { | |
| 2455 | SETi(-SvIVX(sv)); | |
| 2456 | RETURN; | |
| 2457 | } | |
| 28e5dec8 JH |
2458 | #ifdef PERL_PRESERVE_IVUV |
| 2459 | else { | |
| 2460 | SETu((UV)IV_MIN); | |
| 2461 | RETURN; | |
| 2462 | } | |
| 2463 | #endif | |
| 9b0e499b GS |
2464 | } |
| 2465 | if (SvNIOKp(sv)) | |
| 6f1401dc | 2466 | SETn(-SvNV_nomg(sv)); |
| 4633a7c4 | 2467 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2468 | STRLEN len; |
| 6f1401dc | 2469 | const char * const s = SvPV_nomg_const(sv, len); |
| bbce6d69 | 2470 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2471 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2472 | sv_catsv(TARG, sv); |
| 79072805 | 2473 | } |
| a0d0e21e | 2474 | else if (*s == '+' || *s == '-') { |
| 6f1401dc DM |
2475 | sv_setsv_nomg(TARG, sv); |
| 2476 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2477 | } |
| 8eb28a70 | 2478 | else if (DO_UTF8(sv)) { |
| 6f1401dc | 2479 | SvIV_please_nomg(sv); |
| 8eb28a70 JH |
2480 | if (SvIOK(sv)) |
| 2481 | goto oops_its_an_int; | |
| 2482 | if (SvNOK(sv)) | |
| 6f1401dc | 2483 | sv_setnv(TARG, -SvNV_nomg(sv)); |
| 8eb28a70 | 2484 | else { |
| 76f68e9b | 2485 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2486 | sv_catsv(TARG, sv); |
| 2487 | } | |
| 834a4ddd | 2488 | } |
| 28e5dec8 | 2489 | else { |
| 6f1401dc | 2490 | SvIV_please_nomg(sv); |
| 8eb28a70 JH |
2491 | if (SvIOK(sv)) |
| 2492 | goto oops_its_an_int; | |
| 6f1401dc | 2493 | sv_setnv(TARG, -SvNV_nomg(sv)); |
| 28e5dec8 | 2494 | } |
| a0d0e21e | 2495 | SETTARG; |
| 79072805 | 2496 | } |
| 4633a7c4 | 2497 | else |
| 6f1401dc | 2498 | SETn(-SvNV_nomg(sv)); |
| 79072805 | 2499 | } |
| a0d0e21e | 2500 | RETURN; |
| 79072805 LW |
2501 | } |
| 2502 | ||
| a0d0e21e | 2503 | PP(pp_not) |
| 79072805 | 2504 | { |
| 6f1401dc DM |
2505 | dVAR; dSP; |
| 2506 | tryAMAGICun_MG(not_amg, AMGf_set); | |
| 3280af22 | 2507 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2508 | return NORMAL; |
| 79072805 LW |
2509 | } |
| 2510 | ||
| a0d0e21e | 2511 | PP(pp_complement) |
| 79072805 | 2512 | { |
| 6f1401dc DM |
2513 | dVAR; dSP; dTARGET; |
| 2514 | tryAMAGICun_MG(compl_amg, 0); | |
| a0d0e21e LW |
2515 | { |
| 2516 | dTOPss; | |
| 4633a7c4 | 2517 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2518 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2519 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2520 | SETi(i); |
| d0ba1bd2 JH |
2521 | } |
| 2522 | else { | |
| 1b6737cc | 2523 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2524 | SETu(u); |
| d0ba1bd2 | 2525 | } |
| a0d0e21e LW |
2526 | } |
| 2527 | else { | |
| 51723571 | 2528 | register U8 *tmps; |
| 55497cff | 2529 | register I32 anum; |
| a0d0e21e LW |
2530 | STRLEN len; |
| 2531 | ||
| 10516c54 | 2532 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2533 | sv_setsv_nomg(TARG, sv); |
| 6f1401dc | 2534 | tmps = (U8*)SvPV_force_nomg(TARG, len); |
| a0d0e21e | 2535 | anum = len; |
| 1d68d6cd | 2536 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2537 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2538 | STRLEN targlen = 0; |
| ba210ebe | 2539 | STRLEN l; |
| a1ca4561 YST |
2540 | UV nchar = 0; |
| 2541 | UV nwide = 0; | |
| 01f6e806 | 2542 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2543 | U8 * const origtmps = tmps; |
| 2544 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2545 | |
| 1d68d6cd | 2546 | while (tmps < send) { |
| 74d49cd0 TS |
2547 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2548 | tmps += l; | |
| 5bbb0b5a | 2549 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2550 | nchar++; |
| 2551 | if (c > 0xff) | |
| 2552 | nwide++; | |
| 1d68d6cd SC |
2553 | } |
| 2554 | ||
| 2555 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2556 | tmps = origtmps; |
| a1ca4561 YST |
2557 | |
| 2558 | if (nwide) { | |
| 01f6e806 AL |
2559 | U8 *result; |
| 2560 | U8 *p; | |
| 2561 | ||
| 74d49cd0 | 2562 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2563 | p = result; |
| a1ca4561 | 2564 | while (tmps < send) { |
| 74d49cd0 TS |
2565 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2566 | tmps += l; | |
| 01f6e806 | 2567 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2568 | } |
| 01f6e806 | 2569 | *p = '\0'; |
| c1c21316 NC |
2570 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2571 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2572 | SvUTF8_on(TARG); |
| 2573 | } | |
| 2574 | else { | |
| 01f6e806 AL |
2575 | U8 *result; |
| 2576 | U8 *p; | |
| 2577 | ||
| 74d49cd0 | 2578 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2579 | p = result; |
| a1ca4561 | 2580 | while (tmps < send) { |
| 74d49cd0 TS |
2581 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2582 | tmps += l; | |
| 01f6e806 | 2583 | *p++ = ~c; |
| a1ca4561 | 2584 | } |
| 01f6e806 | 2585 | *p = '\0'; |
| c1c21316 | 2586 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2587 | SvUTF8_off(TARG); |
| 1d68d6cd | 2588 | } |
| ec93b65f | 2589 | SETTARG; |
| 1d68d6cd SC |
2590 | RETURN; |
| 2591 | } | |
| a0d0e21e | 2592 | #ifdef LIBERAL |
| 51723571 JH |
2593 | { |
| 2594 | register long *tmpl; | |
| 2595 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2596 | *tmps = ~*tmps; | |
| 2597 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2598 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2599 | *tmpl = ~*tmpl; |
| 2600 | tmps = (U8*)tmpl; | |
| 2601 | } | |
| a0d0e21e LW |
2602 | #endif |
| 2603 | for ( ; anum > 0; anum--, tmps++) | |
| 2604 | *tmps = ~*tmps; | |
| ec93b65f | 2605 | SETTARG; |
| a0d0e21e LW |
2606 | } |
| 2607 | RETURN; | |
| 2608 | } | |
| 79072805 LW |
2609 | } |
| 2610 | ||
| a0d0e21e LW |
2611 | /* integer versions of some of the above */ |
| 2612 | ||
| a0d0e21e | 2613 | PP(pp_i_multiply) |
| 79072805 | 2614 | { |
| 6f1401dc DM |
2615 | dVAR; dSP; dATARGET; |
| 2616 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
| a0d0e21e | 2617 | { |
| 6f1401dc | 2618 | dPOPTOPiirl_nomg; |
| a0d0e21e LW |
2619 | SETi( left * right ); |
| 2620 | RETURN; | |
| 2621 | } | |
| 79072805 LW |
2622 | } |
| 2623 | ||
| a0d0e21e | 2624 | PP(pp_i_divide) |
| 79072805 | 2625 | { |
| ece1bcef | 2626 | IV num; |
| 6f1401dc DM |
2627 | dVAR; dSP; dATARGET; |
| 2628 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
| a0d0e21e | 2629 | { |
| 6f1401dc DM |
2630 | dPOPTOPssrl; |
| 2631 | IV value = SvIV_nomg(right); | |
| a0d0e21e | 2632 | if (value == 0) |
| ece1bcef | 2633 | DIE(aTHX_ "Illegal division by zero"); |
| 6f1401dc | 2634 | num = SvIV_nomg(left); |
| a0cec769 YST |
2635 | |
| 2636 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2637 | if (value == -1) | |
| 2638 | value = - num; | |
| 2639 | else | |
| 2640 | value = num / value; | |
| 6f1401dc | 2641 | SETi(value); |
| a0d0e21e LW |
2642 | RETURN; |
| 2643 | } | |
| 79072805 LW |
2644 | } |
| 2645 | ||
| befad5d1 | 2646 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2647 | STATIC |
| 2648 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2649 | #else |
| 2650 | PP(pp_i_modulo) | |
| 2651 | #endif | |
| 224ec323 JH |
2652 | { |
| 2653 | /* This is the vanilla old i_modulo. */ | |
| 6f1401dc DM |
2654 | dVAR; dSP; dATARGET; |
| 2655 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2656 | { |
| 6f1401dc | 2657 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2658 | if (!right) |
| 2659 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2660 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2661 | if (right == -1) | |
| 2662 | SETi( 0 ); | |
| 2663 | else | |
| 2664 | SETi( left % right ); | |
| 224ec323 JH |
2665 | RETURN; |
| 2666 | } | |
| 2667 | } | |
| 2668 | ||
| 11010fa3 | 2669 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2670 | STATIC |
| 2671 | PP(pp_i_modulo_1) | |
| befad5d1 | 2672 | |
| 224ec323 | 2673 | { |
| 224ec323 | 2674 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2675 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2676 | * See below for pp_i_modulo. */ |
| 6f1401dc DM |
2677 | dVAR; dSP; dATARGET; |
| 2678 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2679 | { |
| 6f1401dc | 2680 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2681 | if (!right) |
| 2682 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2683 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2684 | if (right == -1) | |
| 2685 | SETi( 0 ); | |
| 2686 | else | |
| 2687 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2688 | RETURN; |
| 2689 | } | |
| 224ec323 JH |
2690 | } |
| 2691 | ||
| a0d0e21e | 2692 | PP(pp_i_modulo) |
| 79072805 | 2693 | { |
| 6f1401dc DM |
2694 | dVAR; dSP; dATARGET; |
| 2695 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2696 | { |
| 6f1401dc | 2697 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2698 | if (!right) |
| 2699 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2700 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2701 | PL_op->op_ppaddr = | |
| 2702 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2703 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2704 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2705 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2706 | * words our integer modulus with negative quad as the second | |
| 2707 | * argument might be broken. Test for this and re-patch the | |
| 2708 | * opcode dispatch table if that is the case, remembering to | |
| 2709 | * also apply the workaround so that this first round works | |
| 2710 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2711 | { |
| 2712 | IV l = 3; | |
| 2713 | IV r = -10; | |
| 2714 | /* Cannot do this check with inlined IV constants since | |
| 2715 | * that seems to work correctly even with the buggy glibc. */ | |
| 2716 | if (l % r == -3) { | |
| 2717 | /* Yikes, we have the bug. | |
| 2718 | * Patch in the workaround version. */ | |
| 2719 | PL_op->op_ppaddr = | |
| 2720 | PL_ppaddr[OP_I_MODULO] = | |
| 2721 | &Perl_pp_i_modulo_1; | |
| 2722 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2723 | right = PERL_ABS(right); |
| 224ec323 JH |
2724 | } |
| 2725 | } | |
| a0cec769 YST |
2726 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2727 | if (right == -1) | |
| 2728 | SETi( 0 ); | |
| 2729 | else | |
| 2730 | SETi( left % right ); | |
| 224ec323 JH |
2731 | RETURN; |
| 2732 | } | |
| 79072805 | 2733 | } |
| befad5d1 | 2734 | #endif |
| 79072805 | 2735 | |
| a0d0e21e | 2736 | PP(pp_i_add) |
| 79072805 | 2737 | { |
| 6f1401dc DM |
2738 | dVAR; dSP; dATARGET; |
| 2739 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
| a0d0e21e | 2740 | { |
| 6f1401dc | 2741 | dPOPTOPiirl_ul_nomg; |
| a0d0e21e LW |
2742 | SETi( left + right ); |
| 2743 | RETURN; | |
| 79072805 | 2744 | } |
| 79072805 LW |
2745 | } |
| 2746 | ||
| a0d0e21e | 2747 | PP(pp_i_subtract) |
| 79072805 | 2748 | { |
| 6f1401dc DM |
2749 | dVAR; dSP; dATARGET; |
| 2750 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
| a0d0e21e | 2751 | { |
| 6f1401dc | 2752 | dPOPTOPiirl_ul_nomg; |
| a0d0e21e LW |
2753 | SETi( left - right ); |
| 2754 | RETURN; | |
| 79072805 | 2755 | } |
| 79072805 LW |
2756 | } |
| 2757 | ||
| a0d0e21e | 2758 | PP(pp_i_lt) |
| 79072805 | 2759 | { |
| 6f1401dc DM |
2760 | dVAR; dSP; |
| 2761 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
| a0d0e21e | 2762 | { |
| 6f1401dc | 2763 | dPOPTOPiirl_nomg; |
| 54310121 | 2764 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2765 | RETURN; |
| 2766 | } | |
| 79072805 LW |
2767 | } |
| 2768 | ||
| a0d0e21e | 2769 | PP(pp_i_gt) |
| 79072805 | 2770 | { |
| 6f1401dc DM |
2771 | dVAR; dSP; |
| 2772 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
| a0d0e21e | 2773 | { |
| 6f1401dc | 2774 | dPOPTOPiirl_nomg; |
| 54310121 | 2775 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2776 | RETURN; |
| 2777 | } | |
| 79072805 LW |
2778 | } |
| 2779 | ||
| a0d0e21e | 2780 | PP(pp_i_le) |
| 79072805 | 2781 | { |
| 6f1401dc DM |
2782 | dVAR; dSP; |
| 2783 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
| a0d0e21e | 2784 | { |
| 6f1401dc | 2785 | dPOPTOPiirl_nomg; |
| 54310121 | 2786 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2787 | RETURN; |
| 85e6fe83 | 2788 | } |
| 79072805 LW |
2789 | } |
| 2790 | ||
| a0d0e21e | 2791 | PP(pp_i_ge) |
| 79072805 | 2792 | { |
| 6f1401dc DM |
2793 | dVAR; dSP; |
| 2794 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
| a0d0e21e | 2795 | { |
| 6f1401dc | 2796 | dPOPTOPiirl_nomg; |
| 54310121 | 2797 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2798 | RETURN; |
| 2799 | } | |
| 79072805 LW |
2800 | } |
| 2801 | ||
| a0d0e21e | 2802 | PP(pp_i_eq) |
| 79072805 | 2803 | { |
| 6f1401dc DM |
2804 | dVAR; dSP; |
| 2805 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
| a0d0e21e | 2806 | { |
| 6f1401dc | 2807 | dPOPTOPiirl_nomg; |
| 54310121 | 2808 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2809 | RETURN; |
| 2810 | } | |
| 79072805 LW |
2811 | } |
| 2812 | ||
| a0d0e21e | 2813 | PP(pp_i_ne) |
| 79072805 | 2814 | { |
| 6f1401dc DM |
2815 | dVAR; dSP; |
| 2816 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
| a0d0e21e | 2817 | { |
| 6f1401dc | 2818 | dPOPTOPiirl_nomg; |
| 54310121 | 2819 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2820 | RETURN; |
| 2821 | } | |
| 79072805 LW |
2822 | } |
| 2823 | ||
| a0d0e21e | 2824 | PP(pp_i_ncmp) |
| 79072805 | 2825 | { |
| 6f1401dc DM |
2826 | dVAR; dSP; dTARGET; |
| 2827 | tryAMAGICbin_MG(ncmp_amg, 0); | |
| a0d0e21e | 2828 | { |
| 6f1401dc | 2829 | dPOPTOPiirl_nomg; |
| a0d0e21e | 2830 | I32 value; |
| 79072805 | 2831 | |
| a0d0e21e | 2832 | if (left > right) |
| 79072805 | 2833 | value = 1; |
| a0d0e21e | 2834 | else if (left < right) |
| 79072805 | 2835 | value = -1; |
| a0d0e21e | 2836 | else |
| 79072805 | 2837 | value = 0; |
| a0d0e21e LW |
2838 | SETi(value); |
| 2839 | RETURN; | |
| 79072805 | 2840 | } |
| 85e6fe83 LW |
2841 | } |
| 2842 | ||
| 2843 | PP(pp_i_negate) | |
| 2844 | { | |
| 6f1401dc DM |
2845 | dVAR; dSP; dTARGET; |
| 2846 | tryAMAGICun_MG(neg_amg, 0); | |
| 2847 | { | |
| 2848 | SV * const sv = TOPs; | |
| 2849 | IV const i = SvIV_nomg(sv); | |
| 2850 | SETi(-i); | |
| 2851 | RETURN; | |
| 2852 | } | |
| 85e6fe83 LW |
2853 | } |
| 2854 | ||
| 79072805 LW |
2855 | /* High falutin' math. */ |
| 2856 | ||
| 2857 | PP(pp_atan2) | |
| 2858 | { | |
| 6f1401dc DM |
2859 | dVAR; dSP; dTARGET; |
| 2860 | tryAMAGICbin_MG(atan2_amg, 0); | |
| a0d0e21e | 2861 | { |
| 6f1401dc | 2862 | dPOPTOPnnrl_nomg; |
| a1021d57 | 2863 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2864 | RETURN; |
| 2865 | } | |
| 79072805 LW |
2866 | } |
| 2867 | ||
| 2868 | PP(pp_sin) | |
| 2869 | { | |
| 71302fe3 NC |
2870 | dVAR; dSP; dTARGET; |
| 2871 | int amg_type = sin_amg; | |
| 2872 | const char *neg_report = NULL; | |
| bc81784a | 2873 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2874 | const int op_type = PL_op->op_type; |
| 2875 | ||
| 2876 | switch (op_type) { | |
| 2877 | case OP_COS: | |
| 2878 | amg_type = cos_amg; | |
| bc81784a | 2879 | func = Perl_cos; |
| 71302fe3 NC |
2880 | break; |
| 2881 | case OP_EXP: | |
| 2882 | amg_type = exp_amg; | |
| bc81784a | 2883 | func = Perl_exp; |
| 71302fe3 NC |
2884 | break; |
| 2885 | case OP_LOG: | |
| 2886 | amg_type = log_amg; | |
| bc81784a | 2887 | func = Perl_log; |
| 71302fe3 NC |
2888 | neg_report = "log"; |
| 2889 | break; | |
| 2890 | case OP_SQRT: | |
| 2891 | amg_type = sqrt_amg; | |
| bc81784a | 2892 | func = Perl_sqrt; |
| 71302fe3 NC |
2893 | neg_report = "sqrt"; |
| 2894 | break; | |
| a0d0e21e | 2895 | } |
| 79072805 | 2896 | |
| 6f1401dc DM |
2897 | |
| 2898 | tryAMAGICun_MG(amg_type, 0); | |
| a0d0e21e | 2899 | { |
| 6f1401dc DM |
2900 | SV * const arg = POPs; |
| 2901 | const NV value = SvNV_nomg(arg); | |
| 71302fe3 NC |
2902 | if (neg_report) { |
| 2903 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2904 | SET_NUMERIC_STANDARD(); | |
| 2905 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2906 | } | |
| 2907 | } | |
| 2908 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2909 | RETURN; |
| 2910 | } | |
| 79072805 LW |
2911 | } |
| 2912 | ||
| 56cb0a1c AD |
2913 | /* Support Configure command-line overrides for rand() functions. |
| 2914 | After 5.005, perhaps we should replace this by Configure support | |
| 2915 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2916 | compatibility by calling rand() but allow the user to override it. | |
| 2917 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2918 | */ | |
| 85ab1d1d JH |
2919 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2920 | in addition to rand(). So the overrides should not be needed any more. | |
| 2921 | --Jarkko Hietaniemi 27 September 1998 | |
| 2922 | */ | |
| 2923 | ||
| 2924 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2925 | extern double drand48 (void); |
| 56cb0a1c AD |
2926 | #endif |
| 2927 | ||
| 79072805 LW |
2928 | PP(pp_rand) |
| 2929 | { | |
| 97aff369 | 2930 | dVAR; dSP; dTARGET; |
| 65202027 | 2931 | NV value; |
| 79072805 LW |
2932 | if (MAXARG < 1) |
| 2933 | value = 1.0; | |
| 2934 | else | |
| 2935 | value = POPn; | |
| 2936 | if (value == 0.0) | |
| 2937 | value = 1.0; | |
| 80252599 | 2938 | if (!PL_srand_called) { |
| 85ab1d1d | 2939 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2940 | PL_srand_called = TRUE; |
| 93dc8474 | 2941 | } |
| 85ab1d1d | 2942 | value *= Drand01(); |
| 79072805 LW |
2943 | XPUSHn(value); |
| 2944 | RETURN; | |
| 2945 | } | |
| 2946 | ||
| 2947 | PP(pp_srand) | |
| 2948 | { | |
| 83832992 | 2949 | dVAR; dSP; dTARGET; |
| 0bd48802 | 2950 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2951 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2952 | PL_srand_called = TRUE; |
| da1010ec NC |
2953 | if (anum) |
| 2954 | XPUSHu(anum); | |
| 2955 | else { | |
| 2956 | /* Historically srand always returned true. We can avoid breaking | |
| 2957 | that like this: */ | |
| 2958 | sv_setpvs(TARG, "0 but true"); | |
| 2959 | XPUSHTARG; | |
| 2960 | } | |
| 83832992 | 2961 | RETURN; |
| 79072805 LW |
2962 | } |
| 2963 | ||
| 79072805 LW |
2964 | PP(pp_int) |
| 2965 | { | |
| 6f1401dc DM |
2966 | dVAR; dSP; dTARGET; |
| 2967 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
| 774d564b | 2968 | { |
| 6f1401dc DM |
2969 | SV * const sv = TOPs; |
| 2970 | const IV iv = SvIV_nomg(sv); | |
| 28e5dec8 JH |
2971 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2972 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2973 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2974 | relying on floating point to be accurate is a bug. */ | |
| 2975 | ||
| c781a409 | 2976 | if (!SvOK(sv)) { |
| 922c4365 | 2977 | SETu(0); |
| c781a409 RD |
2978 | } |
| 2979 | else if (SvIOK(sv)) { | |
| 2980 | if (SvIsUV(sv)) | |
| 6f1401dc | 2981 | SETu(SvUV_nomg(sv)); |
| c781a409 | 2982 | else |
| 28e5dec8 | 2983 | SETi(iv); |
| c781a409 | 2984 | } |
| c781a409 | 2985 | else { |
| 6f1401dc | 2986 | const NV value = SvNV_nomg(sv); |
| 1048ea30 | 2987 | if (value >= 0.0) { |
| 28e5dec8 JH |
2988 | if (value < (NV)UV_MAX + 0.5) { |
| 2989 | SETu(U_V(value)); | |
| 2990 | } else { | |
| 059a1014 | 2991 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2992 | } |
| 1048ea30 | 2993 | } |
| 28e5dec8 JH |
2994 | else { |
| 2995 | if (value > (NV)IV_MIN - 0.5) { | |
| 2996 | SETi(I_V(value)); | |
| 2997 | } else { | |
| 1bbae031 | 2998 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2999 | } |
| 3000 | } | |
| 774d564b | 3001 | } |
| 79072805 | 3002 | } |
| 79072805 LW |
3003 | RETURN; |
| 3004 | } | |
| 3005 | ||
| 463ee0b2 LW |
3006 | PP(pp_abs) |
| 3007 | { | |
| 6f1401dc DM |
3008 | dVAR; dSP; dTARGET; |
| 3009 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
| a0d0e21e | 3010 | { |
| 6f1401dc | 3011 | SV * const sv = TOPs; |
| 28e5dec8 | 3012 | /* This will cache the NV value if string isn't actually integer */ |
| 6f1401dc | 3013 | const IV iv = SvIV_nomg(sv); |
| a227d84d | 3014 | |
| 800401ee | 3015 | if (!SvOK(sv)) { |
| 922c4365 | 3016 | SETu(0); |
| 800401ee JH |
3017 | } |
| 3018 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 3019 | /* IVX is precise */ |
| 800401ee | 3020 | if (SvIsUV(sv)) { |
| 6f1401dc | 3021 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
| 28e5dec8 JH |
3022 | } else { |
| 3023 | if (iv >= 0) { | |
| 3024 | SETi(iv); | |
| 3025 | } else { | |
| 3026 | if (iv != IV_MIN) { | |
| 3027 | SETi(-iv); | |
| 3028 | } else { | |
| 3029 | /* 2s complement assumption. Also, not really needed as | |
| 3030 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 3031 | SETu(IV_MIN); | |
| 3032 | } | |
| a227d84d | 3033 | } |
| 28e5dec8 JH |
3034 | } |
| 3035 | } else{ | |
| 6f1401dc | 3036 | const NV value = SvNV_nomg(sv); |
| 774d564b | 3037 | if (value < 0.0) |
| 1b6737cc | 3038 | SETn(-value); |
| a4474c9e DD |
3039 | else |
| 3040 | SETn(value); | |
| 774d564b | 3041 | } |
| a0d0e21e | 3042 | } |
| 774d564b | 3043 | RETURN; |
| 463ee0b2 LW |
3044 | } |
| 3045 | ||
| 79072805 LW |
3046 | PP(pp_oct) |
| 3047 | { | |
| 97aff369 | 3048 | dVAR; dSP; dTARGET; |
| 5c144d81 | 3049 | const char *tmps; |
| 53305cf1 | 3050 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 3051 | STRLEN len; |
| 53305cf1 NC |
3052 | NV result_nv; |
| 3053 | UV result_uv; | |
| 1b6737cc | 3054 | SV* const sv = POPs; |
| 79072805 | 3055 | |
| 349d4f2f | 3056 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
3057 | if (DO_UTF8(sv)) { |
| 3058 | /* If Unicode, try to downgrade | |
| 3059 | * If not possible, croak. */ | |
| 1b6737cc | 3060 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
3061 | |
| 3062 | SvUTF8_on(tsv); | |
| 3063 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 3064 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 3065 | } |
| daa2adfd NC |
3066 | if (PL_op->op_type == OP_HEX) |
| 3067 | goto hex; | |
| 3068 | ||
| 6f894ead | 3069 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3070 | tmps++, len--; |
| 9e24b6e2 | 3071 | if (*tmps == '0') |
| 53305cf1 | 3072 | tmps++, len--; |
| a674e8db | 3073 | if (*tmps == 'x' || *tmps == 'X') { |
| daa2adfd | 3074 | hex: |
| 53305cf1 | 3075 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3076 | } |
| a674e8db | 3077 | else if (*tmps == 'b' || *tmps == 'B') |
| 53305cf1 | 3078 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3079 | else |
| 53305cf1 NC |
3080 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3081 | ||
| 3082 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3083 | XPUSHn(result_nv); | |
| 3084 | } | |
| 3085 | else { | |
| 3086 | XPUSHu(result_uv); | |
| 3087 | } | |
| 79072805 LW |
3088 | RETURN; |
| 3089 | } | |
| 3090 | ||
| 3091 | /* String stuff. */ | |
| 3092 | ||
| 3093 | PP(pp_length) | |
| 3094 | { | |
| 97aff369 | 3095 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3096 | SV * const sv = TOPs; |
| a0ed51b3 | 3097 | |
| 656266fc | 3098 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3099 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3100 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3101 | it likes to cache the length. Maybe that should be a documented | |
| 3102 | feature of it. | |
| 92331800 NC |
3103 | */ |
| 3104 | STRLEN len; | |
| 9f621bb0 NC |
3105 | const char *const p |
| 3106 | = sv_2pv_flags(sv, &len, | |
| 3107 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3108 | |
| d88e091f BM |
3109 | if (!p) { |
| 3110 | sv_setsv(TARG, &PL_sv_undef); | |
| 3111 | SETTARG; | |
| 3112 | } | |
| 9f621bb0 | 3113 | else if (DO_UTF8(sv)) { |
| 899be101 | 3114 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3115 | } |
| 3116 | else | |
| 3117 | SETi(len); | |
| 656266fc | 3118 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3119 | /* Neither magic nor overloaded. */ |
| 3120 | if (DO_UTF8(sv)) | |
| 3121 | SETi(sv_len_utf8(sv)); | |
| 3122 | else | |
| 3123 | SETi(sv_len(sv)); | |
| 656266fc | 3124 | } else { |
| d88e091f BM |
3125 | sv_setsv_nomg(TARG, &PL_sv_undef); |
| 3126 | SETTARG; | |
| 92331800 | 3127 | } |
| 79072805 LW |
3128 | RETURN; |
| 3129 | } | |
| 3130 | ||
| 3131 | PP(pp_substr) | |
| 3132 | { | |
| 97aff369 | 3133 | dVAR; dSP; dTARGET; |
| 79072805 | 3134 | SV *sv; |
| 463ee0b2 | 3135 | STRLEN curlen; |
| 9402d6ed | 3136 | STRLEN utf8_curlen; |
| 777f7c56 EB |
3137 | SV * pos_sv; |
| 3138 | IV pos1_iv; | |
| 3139 | int pos1_is_uv; | |
| 3140 | IV pos2_iv; | |
| 3141 | int pos2_is_uv; | |
| 3142 | SV * len_sv; | |
| 3143 | IV len_iv = 0; | |
| 3144 | int len_is_uv = 1; | |
| 050e6362 | 3145 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3146 | const char *tmps; |
| 777f7c56 | 3147 | const IV arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3148 | SV *repl_sv = NULL; |
| cbbf8932 | 3149 | const char *repl = NULL; |
| 7b8d334a | 3150 | STRLEN repl_len; |
| 050e6362 | 3151 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3152 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3153 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3154 | |
| 78f9721b SM |
3155 | if (num_args > 2) { |
| 3156 | if (num_args > 3) { | |
| 9402d6ed | 3157 | repl_sv = POPs; |
| 83003860 | 3158 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3159 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3160 | } |
| 777f7c56 EB |
3161 | len_sv = POPs; |
| 3162 | len_iv = SvIV(len_sv); | |
| 3163 | len_is_uv = SvIOK_UV(len_sv); | |
| 5d82c453 | 3164 | } |
| 777f7c56 EB |
3165 | pos_sv = POPs; |
| 3166 | pos1_iv = SvIV(pos_sv); | |
| 3167 | pos1_is_uv = SvIOK_UV(pos_sv); | |
| 79072805 | 3168 | sv = POPs; |
| 849ca7ee | 3169 | PUTBACK; |
| 9402d6ed JH |
3170 | if (repl_sv) { |
| 3171 | if (repl_is_utf8) { | |
| 3172 | if (!DO_UTF8(sv)) | |
| 3173 | sv_utf8_upgrade(sv); | |
| 3174 | } | |
| 13e30c65 JH |
3175 | else if (DO_UTF8(sv)) |
| 3176 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3177 | } |
| 5c144d81 | 3178 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3179 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3180 | utf8_curlen = sv_len_utf8(sv); |
| 3181 | if (utf8_curlen == curlen) | |
| 3182 | utf8_curlen = 0; | |
| a0ed51b3 | 3183 | else |
| 9402d6ed | 3184 | curlen = utf8_curlen; |
| a0ed51b3 | 3185 | } |
| d1c2b58a | 3186 | else |
| 9402d6ed | 3187 | utf8_curlen = 0; |
| a0ed51b3 | 3188 | |
| 777f7c56 EB |
3189 | if ( (pos1_is_uv && arybase < 0) || (pos1_iv >= arybase) ) { /* pos >= $[ */ |
| 3190 | UV pos1_uv = pos1_iv-arybase; | |
| 3191 | /* Overflow can occur when $[ < 0 */ | |
| 3192 | if (arybase < 0 && pos1_uv < (UV)pos1_iv) | |
| 1c900557 | 3193 | goto bound_fail; |
| 777f7c56 EB |
3194 | pos1_iv = pos1_uv; |
| 3195 | pos1_is_uv = 1; | |
| 3196 | } | |
| 3197 | else if (pos1_is_uv ? (UV)pos1_iv > 0 : pos1_iv > 0) { | |
| 1c900557 | 3198 | goto bound_fail; /* $[=3; substr($_,2,...) */ |
| 777f7c56 EB |
3199 | } |
| 3200 | else { /* pos < $[ */ | |
| 3201 | if (pos1_iv == 0) { /* $[=1; substr($_,0,...) */ | |
| 3202 | pos1_iv = curlen; | |
| 3203 | pos1_is_uv = 1; | |
| 3204 | } else { | |
| 3205 | if (curlen) { | |
| 3206 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
| 3207 | pos1_iv += curlen; | |
| 3208 | } | |
| 5d82c453 | 3209 | } |
| 68dc0745 | 3210 | } |
| 777f7c56 EB |
3211 | if (pos1_is_uv || pos1_iv > 0) { |
| 3212 | if ((UV)pos1_iv > curlen) | |
| 1c900557 | 3213 | goto bound_fail; |
| 777f7c56 EB |
3214 | } |
| 3215 | ||
| 3216 | if (num_args > 2) { | |
| 3217 | if (!len_is_uv && len_iv < 0) { | |
| 3218 | pos2_iv = curlen + len_iv; | |
| 3219 | if (curlen) | |
| 3220 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
| 3221 | else | |
| 3222 | pos2_is_uv = 0; | |
| 3223 | } else { /* len_iv >= 0 */ | |
| 3224 | if (!pos1_is_uv && pos1_iv < 0) { | |
| 3225 | pos2_iv = pos1_iv + len_iv; | |
| 3226 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
| 3227 | } else { | |
| 3228 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
| 3229 | pos2_iv = curlen; | |
| 3230 | else | |
| 3231 | pos2_iv = pos1_iv+len_iv; | |
| 3232 | pos2_is_uv = 1; | |
| 3233 | } | |
| 5d82c453 | 3234 | } |
| 2304df62 | 3235 | } |
| 79072805 | 3236 | else { |
| 777f7c56 EB |
3237 | pos2_iv = curlen; |
| 3238 | pos2_is_uv = 1; | |
| 3239 | } | |
| 3240 | ||
| 3241 | if (!pos2_is_uv && pos2_iv < 0) { | |
| 3242 | if (!pos1_is_uv && pos1_iv < 0) | |
| 1c900557 | 3243 | goto bound_fail; |
| 777f7c56 EB |
3244 | pos2_iv = 0; |
| 3245 | } | |
| 3246 | else if (!pos1_is_uv && pos1_iv < 0) | |
| 3247 | pos1_iv = 0; | |
| 3248 | ||
| 3249 | if ((UV)pos2_iv < (UV)pos1_iv) | |
| 3250 | pos2_iv = pos1_iv; | |
| 3251 | if ((UV)pos2_iv > curlen) | |
| 3252 | pos2_iv = curlen; | |
| 3253 | ||
| 3254 | { | |
| 3255 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
| 3256 | const STRLEN pos = (STRLEN)( (UV)pos1_iv ); | |
| 3257 | const STRLEN len = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
| 777f7c56 | 3258 | STRLEN byte_len = len; |
| d931b1be NC |
3259 | STRLEN byte_pos = utf8_curlen |
| 3260 | ? sv_pos_u2b_flags(sv, pos, &byte_len, SV_CONST_RETURN) : pos; | |
| 3261 | ||
| 2154eca7 EB |
3262 | if (lvalue && !repl) { |
| 3263 | SV * ret; | |
| 3264 | ||
| 3265 | if (!SvGMAGICAL(sv)) { | |
| 3266 | if (SvROK(sv)) { | |
| 3267 | SvPV_force_nolen(sv); | |
| 3268 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
| 3269 | "Attempt to use reference as lvalue in substr"); | |
| 3270 | } | |
| 3271 | if (isGV_with_GP(sv)) | |
| 3272 | SvPV_force_nolen(sv); | |
| 3273 | else if (SvOK(sv)) /* is it defined ? */ | |
| 3274 | (void)SvPOK_only_UTF8(sv); | |
| 3275 | else | |
| 3276 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ | |
| 781e7547 | 3277 | } |
| 2154eca7 EB |
3278 | |
| 3279 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
| 3280 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
| 3281 | LvTYPE(ret) = 'x'; | |
| 3282 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
| 3283 | LvTARGOFF(ret) = pos; | |
| 3284 | LvTARGLEN(ret) = len; | |
| 3285 | ||
| 3286 | SPAGAIN; | |
| 3287 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
| 3288 | RETURN; | |
| 781e7547 DM |
3289 | } |
| 3290 | ||
| 2154eca7 EB |
3291 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3292 | SvUTF8_off(TARG); /* decontaminate */ | |
| 3293 | ||
| 3294 | tmps += byte_pos; | |
| 777f7c56 | 3295 | sv_setpvn(TARG, tmps, byte_len); |
| 12aa1545 | 3296 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3297 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3298 | #endif |
| 9402d6ed | 3299 | if (utf8_curlen) |
| 7f66633b | 3300 | SvUTF8_on(TARG); |
| 2154eca7 | 3301 | |
| f7928d6c | 3302 | if (repl) { |
| 13e30c65 JH |
3303 | SV* repl_sv_copy = NULL; |
| 3304 | ||
| 3305 | if (repl_need_utf8_upgrade) { | |
| 3306 | repl_sv_copy = newSVsv(repl_sv); | |
| 3307 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3308 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3309 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3310 | } | |
| 502d9230 VP |
3311 | if (!SvOK(sv)) |
| 3312 | sv_setpvs(sv, ""); | |
| 777f7c56 | 3313 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
| 9402d6ed | 3314 | if (repl_is_utf8) |
| f7928d6c | 3315 | SvUTF8_on(sv); |
| ef8d46e8 | 3316 | SvREFCNT_dec(repl_sv_copy); |
| f7928d6c | 3317 | } |
| 79072805 | 3318 | } |
| 849ca7ee | 3319 | SPAGAIN; |
| 79072805 LW |
3320 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3321 | RETURN; | |
| 777f7c56 | 3322 | |
| 1c900557 | 3323 | bound_fail: |
| 777f7c56 EB |
3324 | if (lvalue || repl) |
| 3325 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3326 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
| 3327 | RETPUSHUNDEF; | |
| 79072805 LW |
3328 | } |
| 3329 | ||
| 3330 | PP(pp_vec) | |
| 3331 | { | |
| 2154eca7 | 3332 | dVAR; dSP; |
| 1b6737cc AL |
3333 | register const IV size = POPi; |
| 3334 | register const IV offset = POPi; | |
| 3335 | register SV * const src = POPs; | |
| 3336 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| 2154eca7 | 3337 | SV * ret; |
| a0d0e21e | 3338 | |
| 81e118e0 | 3339 | if (lvalue) { /* it's an lvalue! */ |
| 2154eca7 EB |
3340 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
| 3341 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
| 3342 | LvTYPE(ret) = 'v'; | |
| 3343 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
| 3344 | LvTARGOFF(ret) = offset; | |
| 3345 | LvTARGLEN(ret) = size; | |
| 3346 | } | |
| 3347 | else { | |
| 3348 | dTARGET; | |
| 3349 | SvTAINTED_off(TARG); /* decontaminate */ | |
| 3350 | ret = TARG; | |
| 79072805 LW |
3351 | } |
| 3352 | ||
| 2154eca7 EB |
3353 | sv_setuv(ret, do_vecget(src, offset, size)); |
| 3354 | PUSHs(ret); | |
| 79072805 LW |
3355 | RETURN; |
| 3356 | } | |
| 3357 | ||
| 3358 | PP(pp_index) | |
| 3359 | { | |
| 97aff369 | 3360 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3361 | SV *big; |
| 3362 | SV *little; | |
| c445ea15 | 3363 | SV *temp = NULL; |
| ad66a58c | 3364 | STRLEN biglen; |
| 2723d216 | 3365 | STRLEN llen = 0; |
| 79072805 LW |
3366 | I32 offset; |
| 3367 | I32 retval; | |
| 73ee8be2 NC |
3368 | const char *big_p; |
| 3369 | const char *little_p; | |
| fc15ae8f | 3370 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3371 | bool big_utf8; |
| 3372 | bool little_utf8; | |
| 2723d216 | 3373 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3374 | |
| 2723d216 NC |
3375 | if (MAXARG >= 3) { |
| 3376 | /* arybase is in characters, like offset, so combine prior to the | |
| 3377 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3378 | offset = POPi - arybase; |
| 2723d216 | 3379 | } |
| 79072805 LW |
3380 | little = POPs; |
| 3381 | big = POPs; | |
| 73ee8be2 NC |
3382 | big_p = SvPV_const(big, biglen); |
| 3383 | little_p = SvPV_const(little, llen); | |
| 3384 | ||
| e609e586 NC |
3385 | big_utf8 = DO_UTF8(big); |
| 3386 | little_utf8 = DO_UTF8(little); | |
| 3387 | if (big_utf8 ^ little_utf8) { | |
| 3388 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3389 | if (little_utf8 && !PL_encoding) { |
| 3390 | /* Well, maybe instead we might be able to downgrade the small | |
| 3391 | string? */ | |
| 1eced8f8 | 3392 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3393 | &little_utf8); |
| 3394 | if (little_utf8) { | |
| 3395 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3396 | convert the small string to ISO-8859-1, then there is no | |
| 3397 | way that it could be found anywhere by index. */ | |
| 3398 | retval = -1; | |
| 3399 | goto fail; | |
| 3400 | } | |
| e609e586 | 3401 | |
| 2f040f7f NC |
3402 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3403 | to ensure it will get free()d */ | |
| 3404 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3405 | sv_usepvn(temp, pv, llen); |
| 3406 | little_p = SvPVX(little); | |
| e609e586 | 3407 | } else { |
| 73ee8be2 NC |
3408 | temp = little_utf8 |
| 3409 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3410 | |
| 3411 | if (PL_encoding) { | |
| 3412 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3413 | } else { | |
| 3414 | sv_utf8_upgrade(temp); | |
| 3415 | } | |
| 3416 | if (little_utf8) { | |
| 3417 | big = temp; | |
| 3418 | big_utf8 = TRUE; | |
| 73ee8be2 | 3419 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3420 | } else { |
| 3421 | little = temp; | |
| 73ee8be2 | 3422 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3423 | } |
| e609e586 NC |
3424 | } |
| 3425 | } | |
| 73ee8be2 NC |
3426 | if (SvGAMAGIC(big)) { |
| 3427 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3428 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3429 | will trigger magic and overloading again, as will fbm_instr() | |
| 3430 | */ | |
| 59cd0e26 NC |
3431 | big = newSVpvn_flags(big_p, biglen, |
| 3432 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3433 | big_p = SvPVX(big); |
| 3434 | } | |
| e4e44778 | 3435 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3436 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3437 | warn on undef, and we've already triggered a warning with the | |
| 3438 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3439 | call some SvPV to trigger overloading early and find out if the | |
| 3440 | string is UTF-8. | |
| 3441 | This is all getting to messy. The API isn't quite clean enough, | |
| 3442 | because data access has side effects. | |
| 3443 | */ | |
| 59cd0e26 NC |
3444 | little = newSVpvn_flags(little_p, llen, |
| 3445 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3446 | little_p = SvPVX(little); |
| 3447 | } | |
| e609e586 | 3448 | |
| 79072805 | 3449 | if (MAXARG < 3) |
| 2723d216 | 3450 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3451 | else { |
| ad66a58c | 3452 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3453 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3454 | if (!is_index) |
| 3455 | offset += llen; | |
| a0ed51b3 | 3456 | } |
| 79072805 LW |
3457 | if (offset < 0) |
| 3458 | offset = 0; | |
| ad66a58c NC |
3459 | else if (offset > (I32)biglen) |
| 3460 | offset = biglen; | |
| 73ee8be2 NC |
3461 | if (!(little_p = is_index |
| 3462 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3463 | (unsigned char*)big_p + biglen, little, 0) | |
| 3464 | : rninstr(big_p, big_p + offset, | |
| 3465 | little_p, little_p + llen))) | |
| a0ed51b3 | 3466 | retval = -1; |
| ad66a58c | 3467 | else { |
| 73ee8be2 | 3468 | retval = little_p - big_p; |
| ad66a58c NC |
3469 | if (retval > 0 && big_utf8) |
| 3470 | sv_pos_b2u(big, &retval); | |
| 3471 | } | |
| ef8d46e8 | 3472 | SvREFCNT_dec(temp); |
| 2723d216 | 3473 | fail: |
| a0ed51b3 | 3474 | PUSHi(retval + arybase); |
| 79072805 LW |
3475 | RETURN; |
| 3476 | } | |
| 3477 | ||
| 3478 | PP(pp_sprintf) | |
| 3479 | { | |
| 97aff369 | 3480 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3481 | if (SvTAINTED(MARK[1])) |
| 3482 | TAINT_PROPER("sprintf"); | |
| 3e6bd4bf | 3483 | SvTAINTED_off(TARG); |
| 79072805 | 3484 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3485 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3486 | SP = ORIGMARK; |
| 3487 | PUSHTARG; | |
| 3488 | RETURN; | |
| 3489 | } | |
| 3490 | ||
| 79072805 LW |
3491 | PP(pp_ord) |
| 3492 | { | |
| 97aff369 | 3493 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3494 | |
| 7df053ec | 3495 | SV *argsv = POPs; |
| ba210ebe | 3496 | STRLEN len; |
| 349d4f2f | 3497 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3498 | |
| 799ef3cb | 3499 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3500 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3501 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3502 | argsv = tmpsv; |
| 3503 | } | |
| 79072805 | 3504 | |
| 872c91ae | 3505 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3506 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 5fc32dea | 3507 | (UV)(*s & 0xff)); |
| 68795e93 | 3508 | |
| 79072805 LW |
3509 | RETURN; |
| 3510 | } | |
| 3511 | ||
| 463ee0b2 LW |
3512 | PP(pp_chr) |
| 3513 | { | |
| 97aff369 | 3514 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3515 | char *tmps; |
| 8a064bd6 JH |
3516 | UV value; |
| 3517 | ||
| 3518 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3519 | || | |
| 3520 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3521 | if (IN_BYTES) { | |
| 3522 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3523 | } else { | |
| 3524 | (void) POPs; /* Ignore the argument value. */ | |
| 3525 | value = UNICODE_REPLACEMENT; | |
| 3526 | } | |
| 3527 | } else { | |
| 3528 | value = POPu; | |
| 3529 | } | |
| 463ee0b2 | 3530 | |
| 862a34c6 | 3531 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3532 | |
| 0064a8a9 | 3533 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3534 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3535 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3536 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3537 | *tmps = '\0'; |
| 3538 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3539 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3540 | XPUSHs(TARG); |
| 3541 | RETURN; | |
| 3542 | } | |
| 3543 | ||
| 748a9306 | 3544 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3545 | SvCUR_set(TARG, 1); |
| 3546 | tmps = SvPVX(TARG); | |
| eb160463 | 3547 | *tmps++ = (char)value; |
| 748a9306 | 3548 | *tmps = '\0'; |
| a0d0e21e | 3549 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3550 | |
| 88632417 | 3551 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3552 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3553 | tmps = SvPVX(TARG); |
| 3554 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 TS |
3555 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3556 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3557 | tmps = SvPVX(TARG); |
| 4c5ed6e2 TS |
3558 | SvCUR_set(TARG, 1); |
| 3559 | *tmps++ = (char)value; | |
| 88632417 | 3560 | *tmps = '\0'; |
| 4c5ed6e2 | 3561 | SvUTF8_off(TARG); |
| 88632417 JH |
3562 | } |
| 3563 | } | |
| 4c5ed6e2 | 3564 | |
| 463ee0b2 LW |
3565 | XPUSHs(TARG); |
| 3566 | RETURN; | |
| 3567 | } | |
| 3568 | ||
| 79072805 LW |
3569 | PP(pp_crypt) |
| 3570 | { | |
| 79072805 | 3571 | #ifdef HAS_CRYPT |
| 97aff369 | 3572 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3573 | dPOPTOPssrl; |
| 85c16d83 | 3574 | STRLEN len; |
| 10516c54 | 3575 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3576 | |
| 85c16d83 | 3577 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3578 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3579 | * If not possible, croak. |
| 3580 | * Yes, we made this up. */ | |
| 1b6737cc | 3581 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3582 | |
| f2791508 | 3583 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3584 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3585 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3586 | } |
| 05404ffe JH |
3587 | # ifdef USE_ITHREADS |
| 3588 | # ifdef HAS_CRYPT_R | |
| 3589 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3590 | /* This should be threadsafe because in ithreads there is only | |
| 3591 | * one thread per interpreter. If this would not be true, | |
| 3592 | * we would need a mutex to protect this malloc. */ | |
| 3593 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3594 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3595 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3596 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3597 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3598 | /* work around glibc-2.2.5 bug */ | |
| 3599 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3600 | } | |
| 05404ffe | 3601 | #endif |
| 6ab58e4d | 3602 | } |
| 05404ffe JH |
3603 | # endif /* HAS_CRYPT_R */ |
| 3604 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3605 | # ifdef FCRYPT |
| 83003860 | 3606 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3607 | # else |
| 83003860 | 3608 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3609 | # endif |
| ec93b65f | 3610 | SETTARG; |
| 4808266b | 3611 | RETURN; |
| 79072805 | 3612 | #else |
| b13b2135 | 3613 | DIE(aTHX_ |
| 79072805 LW |
3614 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3615 | #endif | |
| 79072805 LW |
3616 | } |
| 3617 | ||
| 00f254e2 KW |
3618 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
| 3619 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
| 3620 | ||
| 3621 | /* Both the characters below can be stored in two UTF-8 bytes. In UTF-8 the max | |
| 3622 | * character that 2 bytes can hold is U+07FF, and in UTF-EBCDIC it is U+03FF. | |
| 3623 | * See http://www.unicode.org/unicode/reports/tr16 */ | |
| 3624 | #define LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS 0x0178 /* Also is title case */ | |
| 3625 | #define GREEK_CAPITAL_LETTER_MU 0x039C /* Upper and title case of MICRON */ | |
| 3626 | ||
| 3627 | /* Below are several macros that generate code */ | |
| 3628 | /* Generates code to store a unicode codepoint c that is known to occupy | |
| 3629 | * exactly two UTF-8 and UTF-EBCDIC bytes; it is stored into p and p+1. */ | |
| 3630 | #define STORE_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
| 3631 | STMT_START { \ | |
| 3632 | *(p) = UTF8_TWO_BYTE_HI(c); \ | |
| 3633 | *((p)+1) = UTF8_TWO_BYTE_LO(c); \ | |
| 3634 | } STMT_END | |
| 3635 | ||
| 3636 | /* Like STORE_UNI_TO_UTF8_TWO_BYTE, but advances p to point to the next | |
| 3637 | * available byte after the two bytes */ | |
| 3638 | #define CAT_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
| 3639 | STMT_START { \ | |
| 3640 | *(p)++ = UTF8_TWO_BYTE_HI(c); \ | |
| 3641 | *((p)++) = UTF8_TWO_BYTE_LO(c); \ | |
| 3642 | } STMT_END | |
| 3643 | ||
| 3644 | /* Generates code to store the upper case of latin1 character l which is known | |
| 3645 | * to have its upper case be non-latin1 into the two bytes p and p+1. There | |
| 3646 | * are only two characters that fit this description, and this macro knows | |
| 3647 | * about them, and that the upper case values fit into two UTF-8 or UTF-EBCDIC | |
| 3648 | * bytes */ | |
| 3649 | #define STORE_NON_LATIN1_UC(p, l) \ | |
| 3650 | STMT_START { \ | |
| 3651 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3652 | STORE_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
| 3653 | } else { /* Must be the following letter */ \ | |
| 3654 | STORE_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
| 3655 | } \ | |
| 3656 | } STMT_END | |
| 3657 | ||
| 3658 | /* Like STORE_NON_LATIN1_UC, but advances p to point to the next available byte | |
| 3659 | * after the character stored */ | |
| 3660 | #define CAT_NON_LATIN1_UC(p, l) \ | |
| 3661 | STMT_START { \ | |
| 3662 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3663 | CAT_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
| 3664 | } else { \ | |
| 3665 | CAT_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
| 3666 | } \ | |
| 3667 | } STMT_END | |
| 3668 | ||
| 3669 | /* Generates code to add the two UTF-8 bytes (probably u) that are the upper | |
| 3670 | * case of l into p and p+1. u must be the result of toUPPER_LATIN1_MOD(l), | |
| 3671 | * and must require two bytes to store it. Advances p to point to the next | |
| 3672 | * available position */ | |
| 3673 | #define CAT_TWO_BYTE_UNI_UPPER_MOD(p, l, u) \ | |
| 3674 | STMT_START { \ | |
| 3675 | if ((u) != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3676 | CAT_UNI_TO_UTF8_TWO_BYTE((p), (u)); /* not special, just save it */ \ | |
| 3677 | } else if (l == LATIN_SMALL_LETTER_SHARP_S) { \ | |
| 3678 | *(p)++ = 'S'; *(p)++ = 'S'; /* upper case is 'SS' */ \ | |
| 3679 | } else {/* else is one of the other two special cases */ \ | |
| 3680 | CAT_NON_LATIN1_UC((p), (l)); \ | |
| 3681 | } \ | |
| 3682 | } STMT_END | |
| 3683 | ||
| 79072805 LW |
3684 | PP(pp_ucfirst) |
| 3685 | { | |
| 00f254e2 KW |
3686 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
| 3687 | * changes. This means that possibly we can change in-place, ie., just | |
| 3688 | * take the source and change that one character and store it back, but not | |
| 3689 | * if read-only etc, or if the length changes */ | |
| 3690 | ||
| 97aff369 | 3691 | dVAR; |
| 39644a26 | 3692 | dSP; |
| d54190f6 | 3693 | SV *source = TOPs; |
| 00f254e2 | 3694 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
| d54190f6 NC |
3695 | STRLEN need; |
| 3696 | SV *dest; | |
| 00f254e2 KW |
3697 | bool inplace; /* ? Convert first char only, in-place */ |
| 3698 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
| 3699 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
| 12e9c124 | 3700 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3701 | const U8 *s; |
| 3702 | U8 *d; | |
| 3703 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 00f254e2 KW |
3704 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
| 3705 | * stored as UTF-8 at s. */ | |
| 3706 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
| 3707 | * lowercased) character stored in tmpbuf. May be either | |
| 3708 | * UTF-8 or not, but in either case is the number of bytes */ | |
| d54190f6 NC |
3709 | |
| 3710 | SvGETMAGIC(source); | |
| 3711 | if (SvOK(source)) { | |
| 3712 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3713 | } else { | |
| 0a0ffbce RGS |
3714 | if (ckWARN(WARN_UNINITIALIZED)) |
| 3715 | report_uninit(source); | |
| 1eced8f8 | 3716 | s = (const U8*)""; |
| d54190f6 NC |
3717 | slen = 0; |
| 3718 | } | |
| a0ed51b3 | 3719 | |
| 00f254e2 KW |
3720 | /* We may be able to get away with changing only the first character, in |
| 3721 | * place, but not if read-only, etc. Later we may discover more reasons to | |
| 3722 | * not convert in-place. */ | |
| 3723 | inplace = SvPADTMP(source) && !SvREADONLY(source) && SvTEMP(source); | |
| 3724 | ||
| 3725 | /* First calculate what the changed first character should be. This affects | |
| 3726 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
| 3727 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
| 3728 | ||
| 3729 | if (! slen) { /* If empty */ | |
| 3730 | need = 1; /* still need a trailing NUL */ | |
| 3731 | } | |
| 3732 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
| d54190f6 | 3733 | doing_utf8 = TRUE; |
| 00f254e2 KW |
3734 | |
| 3735 | /* TODO: This is #ifdefd out because it has hard-coded the standard mappings, | |
| 3736 | * and doesn't allow for the user to specify their own. When code is added to | |
| 3737 | * detect if there is a user-defined mapping in force here, and if so to use | |
| 3738 | * that, then the code below can be compiled. The detection would be a good | |
| 3739 | * thing anyway, as currently the user-defined mappings only work on utf8 | |
| 3740 | * strings, and thus depend on the chosen internal storage method, which is a | |
| 3741 | * bad thing */ | |
| 3742 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 3743 | if (UTF8_IS_INVARIANT(*s)) { | |
| 3744 | ||
| 3745 | /* An invariant source character is either ASCII or, in EBCDIC, an | |
| 3746 | * ASCII equivalent or a caseless C1 control. In both these cases, | |
| 3747 | * the lower and upper cases of any character are also invariants | |
| 3748 | * (and title case is the same as upper case). So it is safe to | |
| 3749 | * use the simple case change macros which avoid the overhead of | |
| 3750 | * the general functions. Note that if perl were to be extended to | |
| 3751 | * do locale handling in UTF-8 strings, this wouldn't be true in, | |
| 3752 | * for example, Lithuanian or Turkic. */ | |
| 3753 | *tmpbuf = (op_type == OP_LCFIRST) ? toLOWER(*s) : toUPPER(*s); | |
| 3754 | tculen = ulen = 1; | |
| 3755 | need = slen + 1; | |
| 12e9c124 | 3756 | } |
| 00f254e2 KW |
3757 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { |
| 3758 | U8 chr; | |
| 3759 | ||
| 3760 | /* Similarly, if the source character isn't invariant but is in the | |
| 3761 | * latin1 range (or EBCDIC equivalent thereof), we have the case | |
| 3762 | * changes compiled into perl, and can avoid the overhead of the | |
| 3763 | * general functions. In this range, the characters are stored as | |
| 3764 | * two UTF-8 bytes, and it so happens that any changed-case version | |
| 3765 | * is also two bytes (in both ASCIIish and EBCDIC machines). */ | |
| 3766 | tculen = ulen = 2; | |
| 3767 | need = slen + 1; | |
| 3768 | ||
| 3769 | /* Convert the two source bytes to a single Unicode code point | |
| 3770 | * value, change case and save for below */ | |
| 3771 | chr = UTF8_ACCUMULATE(*s, *(s+1)); | |
| 3772 | if (op_type == OP_LCFIRST) { /* lower casing is easy */ | |
| 3773 | U8 lower = toLOWER_LATIN1(chr); | |
| 3774 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, lower); | |
| 3775 | } | |
| 3776 | else { /* ucfirst */ | |
| 3777 | U8 upper = toUPPER_LATIN1_MOD(chr); | |
| 3778 | ||
| 3779 | /* Most of the latin1 range characters are well-behaved. Their | |
| 3780 | * title and upper cases are the same, and are also in the | |
| 3781 | * latin1 range. The macro above returns their upper (hence | |
| 3782 | * title) case, and all that need be done is to save the result | |
| 3783 | * for below. However, several characters are problematic, and | |
| 3784 | * have to be handled specially. The MOD in the macro name | |
| 3785 | * above means that these tricky characters all get mapped to | |
| 3786 | * the single character LATIN_SMALL_LETTER_Y_WITH_DIAERESIS. | |
| 3787 | * This mapping saves some tests for the majority of the | |
| 3788 | * characters */ | |
| 3789 | ||
| 3790 | if (upper != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { | |
| 3791 | ||
| 3792 | /* Not tricky. Just save it. */ | |
| 3793 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, upper); | |
| 3794 | } | |
| 3795 | else if (chr == LATIN_SMALL_LETTER_SHARP_S) { | |
| 3796 | ||
| 3797 | /* This one is tricky because it is two characters long, | |
| 3798 | * though the UTF-8 is still two bytes, so the stored | |
| 3799 | * length doesn't change */ | |
| 3800 | *tmpbuf = 'S'; /* The UTF-8 is 'Ss' */ | |
| 3801 | *(tmpbuf + 1) = 's'; | |
| 3802 | } | |
| 3803 | else { | |
| 3804 | ||
| 3805 | /* The other two have their title and upper cases the same, | |
| 3806 | * but are tricky because the changed-case characters | |
| 3807 | * aren't in the latin1 range. They, however, do fit into | |
| 3808 | * two UTF-8 bytes */ | |
| 3809 | STORE_NON_LATIN1_UC(tmpbuf, chr); | |
| 3810 | } | |
| 3811 | } | |
| 3812 | } | |
| 3813 | else { | |
| 3814 | #endif /* end of dont want to break user-defined casing */ | |
| 3815 | ||
| 3816 | /* Here, can't short-cut the general case */ | |
| 3817 | ||
| 3818 | utf8_to_uvchr(s, &ulen); | |
| 3819 | if (op_type == OP_UCFIRST) toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3820 | else toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3821 | ||
| 3822 | /* we can't do in-place if the length changes. */ | |
| 3823 | if (ulen != tculen) inplace = FALSE; | |
| 3824 | need = slen + 1 - ulen + tculen; | |
| 3825 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 3826 | } | |
| 3827 | #endif | |
| d54190f6 | 3828 | } |
| 00f254e2 KW |
3829 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
| 3830 | * latin1 is treated as caseless. Note that a locale takes | |
| 3831 | * precedence */ | |
| 3832 | tculen = 1; /* Most characters will require one byte, but this will | |
| 3833 | * need to be overridden for the tricky ones */ | |
| 3834 | need = slen + 1; | |
| 3835 | ||
| 3836 | if (op_type == OP_LCFIRST) { | |
| d54190f6 | 3837 | |
| 00f254e2 KW |
3838 | /* lower case the first letter: no trickiness for any character */ |
| 3839 | *tmpbuf = (IN_LOCALE_RUNTIME) ? toLOWER_LC(*s) : | |
| 3840 | ((IN_UNI_8_BIT) ? toLOWER_LATIN1(*s) : toLOWER(*s)); | |
| 3841 | } | |
| 3842 | /* is ucfirst() */ | |
| 3843 | else if (IN_LOCALE_RUNTIME) { | |
| 3844 | *tmpbuf = toUPPER_LC(*s); /* This would be a bug if any locales | |
| 3845 | * have upper and title case different | |
| 3846 | */ | |
| 3847 | } | |
| 3848 | else if (! IN_UNI_8_BIT) { | |
| 3849 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
| 3850 | * on EBCDIC machines whatever the | |
| 3851 | * native function does */ | |
| 3852 | } | |
| 3853 | else { /* is ucfirst non-UTF-8, not in locale, and cased latin1 */ | |
| 3854 | *tmpbuf = toUPPER_LATIN1_MOD(*s); | |
| 3855 | ||
| 3856 | /* tmpbuf now has the correct title case for all latin1 characters | |
| 3857 | * except for the several ones that have tricky handling. All | |
| 3858 | * of these are mapped by the MOD to the letter below. */ | |
| 3859 | if (*tmpbuf == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { | |
| 3860 | ||
| 3861 | /* The length is going to change, with all three of these, so | |
| 3862 | * can't replace just the first character */ | |
| 3863 | inplace = FALSE; | |
| 3864 | ||
| 3865 | /* We use the original to distinguish between these tricky | |
| 3866 | * cases */ | |
| 3867 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
| 3868 | /* Two character title case 'Ss', but can remain non-UTF-8 */ | |
| 3869 | need = slen + 2; | |
| 3870 | *tmpbuf = 'S'; | |
| 3871 | *(tmpbuf + 1) = 's'; /* Assert: length(tmpbuf) >= 2 */ | |
| 3872 | tculen = 2; | |
| 3873 | } | |
| 3874 | else { | |
| d54190f6 | 3875 | |
| 00f254e2 KW |
3876 | /* The other two tricky ones have their title case outside |
| 3877 | * latin1. It is the same as their upper case. */ | |
| 3878 | doing_utf8 = TRUE; | |
| 3879 | STORE_NON_LATIN1_UC(tmpbuf, *s); | |
| 3880 | ||
| 3881 | /* The UTF-8 and UTF-EBCDIC lengths of both these characters | |
| 3882 | * and their upper cases is 2. */ | |
| 3883 | tculen = ulen = 2; | |
| 3884 | ||
| 3885 | /* The entire result will have to be in UTF-8. Assume worst | |
| 3886 | * case sizing in conversion. (all latin1 characters occupy | |
| 3887 | * at most two bytes in utf8) */ | |
| 3888 | convert_source_to_utf8 = TRUE; | |
| 3889 | need = slen * 2 + 1; | |
| 3890 | } | |
| 3891 | } /* End of is one of the three special chars */ | |
| 3892 | } /* End of use Unicode (Latin1) semantics */ | |
| 3893 | } /* End of changing the case of the first character */ | |
| 3894 | ||
| 3895 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
| 3896 | * generate the result */ | |
| 3897 | if (inplace) { | |
| 3898 | ||
| 3899 | /* We can convert in place. This means we change just the first | |
| 3900 | * character without disturbing the rest; no need to grow */ | |
| d54190f6 NC |
3901 | dest = source; |
| 3902 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3903 | } else { | |
| 3904 | dTARGET; | |
| 3905 | ||
| 3906 | dest = TARG; | |
| 3907 | ||
| 00f254e2 KW |
3908 | /* Here, we can't convert in place; we earlier calculated how much |
| 3909 | * space we will need, so grow to accommodate that */ | |
| d54190f6 | 3910 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 3911 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3912 | (void)SvPOK_only(dest); |
| 3913 | ||
| 3914 | SETs(dest); | |
| d54190f6 | 3915 | } |
| 44bc797b | 3916 | |
| d54190f6 | 3917 | if (doing_utf8) { |
| 00f254e2 KW |
3918 | if (! inplace) { |
| 3919 | if (! convert_source_to_utf8) { | |
| 3920 | ||
| 3921 | /* Here both source and dest are in UTF-8, but have to create | |
| 3922 | * the entire output. We initialize the result to be the | |
| 3923 | * title/lower cased first character, and then append the rest | |
| 3924 | * of the string. */ | |
| 3925 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
| 3926 | if (slen > ulen) { | |
| 3927 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
| 3928 | } | |
| 3929 | } | |
| 3930 | else { | |
| 3931 | const U8 *const send = s + slen; | |
| 3932 | ||
| 3933 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
| 3934 | * except we earlier UTF-8'd the first character of the source | |
| 3935 | * into tmpbuf. First put that into dest, and then append the | |
| 3936 | * rest of the source, converting it to UTF-8 as we go. */ | |
| 3937 | ||
| 3938 | /* Assert tculen is 2 here because the only two characters that | |
| 3939 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
| 3940 | *d++ = *tmpbuf; | |
| 3941 | *d++ = *(tmpbuf + 1); | |
| 3942 | s++; /* We have just processed the 1st char */ | |
| 3943 | ||
| 3944 | for (; s < send; s++) { | |
| 3945 | d = uvchr_to_utf8(d, *s); | |
| 3946 | } | |
| 3947 | *d = '\0'; | |
| 3948 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3949 | } | |
| d54190f6 | 3950 | SvUTF8_on(dest); |
| a0ed51b3 | 3951 | } |
| 00f254e2 | 3952 | else { /* in-place UTF-8. Just overwrite the first character */ |
| d54190f6 NC |
3953 | Copy(tmpbuf, d, tculen, U8); |
| 3954 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3955 | } |
| a0ed51b3 | 3956 | } |
| 00f254e2 KW |
3957 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
| 3958 | if (slen) { | |
| 2de3dbcc | 3959 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3960 | TAINT; |
| d54190f6 | 3961 | SvTAINTED_on(dest); |
| 31351b04 | 3962 | } |
| 00f254e2 KW |
3963 | if (inplace) { /* in-place, only need to change the 1st char */ |
| 3964 | *d = *tmpbuf; | |
| 3965 | } | |
| 3966 | else { /* Not in-place */ | |
| 3967 | ||
| 3968 | /* Copy the case-changed character(s) from tmpbuf */ | |
| 3969 | Copy(tmpbuf, d, tculen, U8); | |
| 3970 | d += tculen - 1; /* Code below expects d to point to final | |
| 3971 | * character stored */ | |
| 3972 | } | |
| 3973 | } | |
| 3974 | else { /* empty source */ | |
| 3975 | /* See bug #39028: Don't taint if empty */ | |
| d54190f6 NC |
3976 | *d = *s; |
| 3977 | } | |
| 3978 | ||
| 00f254e2 KW |
3979 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
| 3980 | * the destination to retain that flag */ | |
| d54190f6 NC |
3981 | if (SvUTF8(source)) |
| 3982 | SvUTF8_on(dest); | |
| 3983 | ||
| 00f254e2 | 3984 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
| d54190f6 NC |
3985 | /* This will copy the trailing NUL */ |
| 3986 | Copy(s + 1, d + 1, slen, U8); | |
| 3987 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3988 | } |
| bbce6d69 | 3989 | } |
| d54190f6 | 3990 | SvSETMAGIC(dest); |
| 79072805 LW |
3991 | RETURN; |
| 3992 | } | |
| 3993 | ||
| 67306194 NC |
3994 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3995 | it would be worth merging the two, and just having a switch outside each | |
| 00f254e2 | 3996 | of the three tight loops. There is less and less commonality though */ |
| 79072805 LW |
3997 | PP(pp_uc) |
| 3998 | { | |
| 97aff369 | 3999 | dVAR; |
| 39644a26 | 4000 | dSP; |
| 67306194 | 4001 | SV *source = TOPs; |
| 463ee0b2 | 4002 | STRLEN len; |
| 67306194 NC |
4003 | STRLEN min; |
| 4004 | SV *dest; | |
| 4005 | const U8 *s; | |
| 4006 | U8 *d; | |
| 79072805 | 4007 | |
| 67306194 NC |
4008 | SvGETMAGIC(source); |
| 4009 | ||
| 4010 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 00f254e2 KW |
4011 | && SvTEMP(source) && !DO_UTF8(source) |
| 4012 | && (IN_LOCALE_RUNTIME || ! IN_UNI_8_BIT)) { | |
| 4013 | ||
| 4014 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
| 4015 | * make the loop tight, so we overwrite the source with the dest before | |
| 4016 | * looking at it, and we need to look at the original source | |
| 4017 | * afterwards. There would also need to be code added to handle | |
| 4018 | * switching to not in-place in midstream if we run into characters | |
| 4019 | * that change the length. | |
| 4020 | */ | |
| 67306194 NC |
4021 | dest = source; |
| 4022 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 4023 | min = len + 1; | |
| 4024 | } else { | |
| a0ed51b3 | 4025 | dTARGET; |
| a0ed51b3 | 4026 | |
| 67306194 | 4027 | dest = TARG; |
| 128c9517 | 4028 | |
| 67306194 NC |
4029 | /* The old implementation would copy source into TARG at this point. |
| 4030 | This had the side effect that if source was undef, TARG was now | |
| 4031 | an undefined SV with PADTMP set, and they don't warn inside | |
| 4032 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 4033 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 4034 | little games. */ | |
| 4035 | ||
| 4036 | if (SvOK(source)) { | |
| 4037 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 4038 | } else { | |
| 0a0ffbce RGS |
4039 | if (ckWARN(WARN_UNINITIALIZED)) |
| 4040 | report_uninit(source); | |
| 1eced8f8 | 4041 | s = (const U8*)""; |
| 67306194 | 4042 | len = 0; |
| a0ed51b3 | 4043 | } |
| 67306194 NC |
4044 | min = len + 1; |
| 4045 | ||
| 4046 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 4047 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
4048 | (void)SvPOK_only(dest); |
| 4049 | ||
| 4050 | SETs(dest); | |
| a0ed51b3 | 4051 | } |
| 31351b04 | 4052 | |
| 67306194 NC |
4053 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 4054 | to check DO_UTF8 again here. */ | |
| 4055 | ||
| 4056 | if (DO_UTF8(source)) { | |
| 4057 | const U8 *const send = s + len; | |
| 4058 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 4059 | ||
| 4c8a458a KW |
4060 | /* All occurrences of these are to be moved to follow any other marks. |
| 4061 | * This is context-dependent. We may not be passed enough context to | |
| 4062 | * move the iota subscript beyond all of them, but we do the best we can | |
| 4063 | * with what we're given. The result is always better than if we | |
| 4064 | * hadn't done this. And, the problem would only arise if we are | |
| 4065 | * passed a character without all its combining marks, which would be | |
| 4066 | * the caller's mistake. The information this is based on comes from a | |
| 4067 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
| 4068 | * itself) and so can't be checked properly to see if it ever gets | |
| 4069 | * revised. But the likelihood of it changing is remote */ | |
| 00f254e2 | 4070 | bool in_iota_subscript = FALSE; |
| 00f254e2 | 4071 | |
| 67306194 | 4072 | while (s < send) { |
| 00f254e2 KW |
4073 | if (in_iota_subscript && ! is_utf8_mark(s)) { |
| 4074 | /* A non-mark. Time to output the iota subscript */ | |
| 4075 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 | |
| 4076 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
| 4077 | ||
| 4078 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
| 4079 | in_iota_subscript = FALSE; | |
| 4080 | } | |
| 00f254e2 KW |
4081 | |
| 4082 | ||
| 4083 | /* See comments at the first instance in this file of this ifdef */ | |
| 4084 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 67306194 | 4085 | |
| 00f254e2 KW |
4086 | /* If the UTF-8 character is invariant, then it is in the range |
| 4087 | * known by the standard macro; result is only one byte long */ | |
| 4088 | if (UTF8_IS_INVARIANT(*s)) { | |
| 4089 | *d++ = toUPPER(*s); | |
| 4090 | s++; | |
| 4091 | } | |
| 4092 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
| 4093 | ||
| 4094 | /* Likewise, if it fits in a byte, its case change is in our | |
| 4095 | * table */ | |
| 4096 | U8 orig = UTF8_ACCUMULATE(*s, *(s+1)); | |
| 4097 | U8 upper = toUPPER_LATIN1_MOD(orig); | |
| 4098 | CAT_TWO_BYTE_UNI_UPPER_MOD(d, orig, upper); | |
| 4099 | s += 2; | |
| 4100 | } | |
| 4101 | else { | |
| 4102 | #else | |
| 4103 | { | |
| 4104 | #endif | |
| 4105 | ||
| 4106 | /* Otherwise, need the general UTF-8 case. Get the changed | |
| 4107 | * case value and copy it to the output buffer */ | |
| 4108 | ||
| 4109 | const STRLEN u = UTF8SKIP(s); | |
| 4110 | STRLEN ulen; | |
| 67306194 | 4111 | |
| 00f254e2 | 4112 | const UV uv = toUPPER_utf8(s, tmpbuf, &ulen); |
| 4c8a458a KW |
4113 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
| 4114 | && utf8_to_uvchr(s, 0) == COMBINING_GREEK_YPOGEGRAMMENI) | |
| 4115 | { | |
| 00f254e2 KW |
4116 | in_iota_subscript = TRUE; |
| 4117 | } | |
| 4118 | else { | |
| 00f254e2 KW |
4119 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
| 4120 | /* If the eventually required minimum size outgrows | |
| 4121 | * the available space, we need to grow. */ | |
| 4122 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 4123 | ||
| 4124 | /* If someone uppercases one million U+03B0s we | |
| 4125 | * SvGROW() one million times. Or we could try | |
| 4126 | * guessing how much to allocate without allocating too | |
| 4c8a458a KW |
4127 | * much. Such is life. See corresponding comment in |
| 4128 | * lc code for another option */ | |
| 00f254e2 KW |
4129 | SvGROW(dest, min); |
| 4130 | d = (U8*)SvPVX(dest) + o; | |
| 4131 | } | |
| 4132 | Copy(tmpbuf, d, ulen, U8); | |
| 4133 | d += ulen; | |
| 00f254e2 | 4134 | } |
| 00f254e2 | 4135 | s += u; |
| 67306194 | 4136 | } |
| 67306194 | 4137 | } |
| 4c8a458a KW |
4138 | if (in_iota_subscript) { |
| 4139 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
| 4140 | } | |
| 67306194 NC |
4141 | SvUTF8_on(dest); |
| 4142 | *d = '\0'; | |
| 4143 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 4c8a458a KW |
4144 | } |
| 4145 | else { /* Not UTF-8 */ | |
| 67306194 NC |
4146 | if (len) { |
| 4147 | const U8 *const send = s + len; | |
| 00f254e2 KW |
4148 | |
| 4149 | /* Use locale casing if in locale; regular style if not treating | |
| 4150 | * latin1 as having case; otherwise the latin1 casing. Do the | |
| 4151 | * whole thing in a tight loop, for speed, */ | |
| 2de3dbcc | 4152 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 4153 | TAINT; |
| 67306194 NC |
4154 | SvTAINTED_on(dest); |
| 4155 | for (; s < send; d++, s++) | |
| 4156 | *d = toUPPER_LC(*s); | |
| 31351b04 | 4157 | } |
| 00f254e2 KW |
4158 | else if (! IN_UNI_8_BIT) { |
| 4159 | for (; s < send; d++, s++) { | |
| 67306194 | 4160 | *d = toUPPER(*s); |
| 00f254e2 | 4161 | } |
| 31351b04 | 4162 | } |
| 00f254e2 KW |
4163 | else { |
| 4164 | for (; s < send; d++, s++) { | |
| 4165 | *d = toUPPER_LATIN1_MOD(*s); | |
| 4166 | if (*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) continue; | |
| 4167 | ||
| 4168 | /* The mainstream case is the tight loop above. To avoid | |
| 4169 | * extra tests in that, all three characters that require | |
| 4170 | * special handling are mapped by the MOD to the one tested | |
| 4171 | * just above. | |
| 4172 | * Use the source to distinguish between the three cases */ | |
| 4173 | ||
| 4174 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
| 4175 | ||
| 4176 | /* uc() of this requires 2 characters, but they are | |
| 4177 | * ASCII. If not enough room, grow the string */ | |
| 4178 | if (SvLEN(dest) < ++min) { | |
| 4179 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 4180 | SvGROW(dest, min); | |
| 4181 | d = (U8*)SvPVX(dest) + o; | |
| 4182 | } | |
| 4183 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
| 4184 | continue; /* Back to the tight loop; still in ASCII */ | |
| 4185 | } | |
| 4186 | ||
| 4187 | /* The other two special handling characters have their | |
| 4188 | * upper cases outside the latin1 range, hence need to be | |
| 4189 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
| 4190 | * here we are somewhere in the middle of processing a | |
| 4191 | * non-UTF-8 string, and realize that we will have to convert | |
| 4192 | * the whole thing to UTF-8. What to do? There are | |
| 4193 | * several possibilities. The simplest to code is to | |
| 4194 | * convert what we have so far, set a flag, and continue on | |
| 4195 | * in the loop. The flag would be tested each time through | |
| 4196 | * the loop, and if set, the next character would be | |
| 4197 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
| 4198 | * to slow down the mainstream case at all for this fairly | |
| 4199 | * rare case, so I didn't want to add a test that didn't | |
| 4200 | * absolutely have to be there in the loop, besides the | |
| 4201 | * possibility that it would get too complicated for | |
| 4202 | * optimizers to deal with. Another possibility is to just | |
| 4203 | * give up, convert the source to UTF-8, and restart the | |
| 4204 | * function that way. Another possibility is to convert | |
| 4205 | * both what has already been processed and what is yet to | |
| 4206 | * come separately to UTF-8, then jump into the loop that | |
| 4207 | * handles UTF-8. But the most efficient time-wise of the | |
| 4208 | * ones I could think of is what follows, and turned out to | |
| 4209 | * not require much extra code. */ | |
| 4210 | ||
| 4211 | /* Convert what we have so far into UTF-8, telling the | |
| 4212 | * function that we know it should be converted, and to | |
| 4213 | * allow extra space for what we haven't processed yet. | |
| 4214 | * Assume the worst case space requirements for converting | |
| 4215 | * what we haven't processed so far: that it will require | |
| 4216 | * two bytes for each remaining source character, plus the | |
| 4217 | * NUL at the end. This may cause the string pointer to | |
| 4218 | * move, so re-find it. */ | |
| 4219 | ||
| 4220 | len = d - (U8*)SvPVX_const(dest); | |
| 4221 | SvCUR_set(dest, len); | |
| 4222 | len = sv_utf8_upgrade_flags_grow(dest, | |
| 4223 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
| 4224 | (send -s) * 2 + 1); | |
| 4225 | d = (U8*)SvPVX(dest) + len; | |
| 4226 | ||
| 4227 | /* And append the current character's upper case in UTF-8 */ | |
| 4228 | CAT_NON_LATIN1_UC(d, *s); | |
| 4229 | ||
| 4230 | /* Now process the remainder of the source, converting to | |
| 4231 | * upper and UTF-8. If a resulting byte is invariant in | |
| 4232 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
| 4233 | * append it to the output. */ | |
| 4234 | ||
| 4235 | s++; | |
| 4236 | for (; s < send; s++) { | |
| 4237 | U8 upper = toUPPER_LATIN1_MOD(*s); | |
| 4238 | if UTF8_IS_INVARIANT(upper) { | |
| 4239 | *d++ = upper; | |
| 4240 | } | |
| 4241 | else { | |
| 4242 | CAT_TWO_BYTE_UNI_UPPER_MOD(d, *s, upper); | |
| 4243 | } | |
| 4244 | } | |
| 4245 | ||
| 4246 | /* Here have processed the whole source; no need to continue | |
| 4247 | * with the outer loop. Each character has been converted | |
| 4248 | * to upper case and converted to UTF-8 */ | |
| 4249 | ||
| 4250 | break; | |
| 4251 | } /* End of processing all latin1-style chars */ | |
| 4252 | } /* End of processing all chars */ | |
| 4253 | } /* End of source is not empty */ | |
| 4254 | ||
| 67306194 | 4255 | if (source != dest) { |
| 00f254e2 | 4256 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
| 67306194 NC |
4257 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
| 4258 | } | |
| 00f254e2 | 4259 | } /* End of isn't utf8 */ |
| 67306194 | 4260 | SvSETMAGIC(dest); |
| 79072805 LW |
4261 | RETURN; |
| 4262 | } | |
| 4263 | ||
| 4264 | PP(pp_lc) | |
| 4265 | { | |
| 97aff369 | 4266 | dVAR; |
| 39644a26 | 4267 | dSP; |
| ec9af7d4 | 4268 | SV *source = TOPs; |
| 463ee0b2 | 4269 | STRLEN len; |
| ec9af7d4 NC |
4270 | STRLEN min; |
| 4271 | SV *dest; | |
| 4272 | const U8 *s; | |
| 4273 | U8 *d; | |
| 79072805 | 4274 | |
| ec9af7d4 NC |
4275 | SvGETMAGIC(source); |
| 4276 | ||
| 4277 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 17fa0776 | 4278 | && SvTEMP(source) && !DO_UTF8(source)) { |
| ec9af7d4 | 4279 | |
| 00f254e2 KW |
4280 | /* We can convert in place, as lowercasing anything in the latin1 range |
| 4281 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
| ec9af7d4 NC |
4282 | dest = source; |
| 4283 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 4284 | min = len + 1; | |
| 4285 | } else { | |
| a0ed51b3 | 4286 | dTARGET; |
| a0ed51b3 | 4287 | |
| ec9af7d4 NC |
4288 | dest = TARG; |
| 4289 | ||
| 4290 | /* The old implementation would copy source into TARG at this point. | |
| 4291 | This had the side effect that if source was undef, TARG was now | |
| 4292 | an undefined SV with PADTMP set, and they don't warn inside | |
| 4293 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 4294 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 4295 | little games. */ | |
| 4296 | ||
| 4297 | if (SvOK(source)) { | |
| 4298 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 4299 | } else { | |
| 0a0ffbce RGS |
4300 | if (ckWARN(WARN_UNINITIALIZED)) |
| 4301 | report_uninit(source); | |
| 1eced8f8 | 4302 | s = (const U8*)""; |
| ec9af7d4 | 4303 | len = 0; |
| a0ed51b3 | 4304 | } |
| ec9af7d4 | 4305 | min = len + 1; |
| 128c9517 | 4306 | |
| ec9af7d4 | 4307 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 4308 | d = (U8*)SvGROW(dest, min); |
| ec9af7d4 NC |
4309 | (void)SvPOK_only(dest); |
| 4310 | ||
| 4311 | SETs(dest); | |
| 4312 | } | |
| 4313 | ||
| 4314 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
| 4315 | to check DO_UTF8 again here. */ | |
| 4316 | ||
| 4317 | if (DO_UTF8(source)) { | |
| 4318 | const U8 *const send = s + len; | |
| 4319 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 4320 | ||
| 4321 | while (s < send) { | |
| 00f254e2 KW |
4322 | /* See comments at the first instance in this file of this ifdef */ |
| 4323 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 4324 | if (UTF8_IS_INVARIANT(*s)) { | |
| 89ebb4a3 | 4325 | |
| 00f254e2 | 4326 | /* Invariant characters use the standard mappings compiled in. |
| ec9af7d4 | 4327 | */ |
| 00f254e2 KW |
4328 | *d++ = toLOWER(*s); |
| 4329 | s++; | |
| ec9af7d4 | 4330 | } |
| 00f254e2 | 4331 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { |
| 89ebb4a3 | 4332 | |
| 00f254e2 KW |
4333 | /* As do the ones in the Latin1 range */ |
| 4334 | U8 lower = toLOWER_LATIN1(UTF8_ACCUMULATE(*s, *(s+1))); | |
| 4335 | CAT_UNI_TO_UTF8_TWO_BYTE(d, lower); | |
| 4336 | s += 2; | |
| a0ed51b3 | 4337 | } |
| 00f254e2 KW |
4338 | else { |
| 4339 | #endif | |
| 4340 | /* Here, is utf8 not in Latin-1 range, have to go out and get | |
| 4341 | * the mappings from the tables. */ | |
| 4342 | ||
| 4343 | const STRLEN u = UTF8SKIP(s); | |
| 4344 | STRLEN ulen; | |
| 4345 | ||
| 00f254e2 KW |
4346 | #ifndef CONTEXT_DEPENDENT_CASING |
| 4347 | toLOWER_utf8(s, tmpbuf, &ulen); | |
| 4348 | #else | |
| 4c8a458a KW |
4349 | /* This is ifdefd out because it needs more work and thought. It isn't clear |
| 4350 | * that we should do it. | |
| 4351 | * A minor objection is that this is based on a hard-coded rule from the | |
| 4352 | * Unicode standard, and may change, but this is not very likely at all. | |
| 4353 | * mktables should check and warn if it does. | |
| 4354 | * More importantly, if the sigma occurs at the end of the string, we don't | |
| 4355 | * have enough context to know whether it is part of a larger string or going | |
| 4356 | * to be or not. It may be that we are passed a subset of the context, via | |
| 4357 | * a \U...\E, for example, and we could conceivably know the larger context if | |
| 4358 | * code were changed to pass that in. But, if the string passed in is an | |
| 4359 | * intermediate result, and the user concatenates two strings together | |
| 4360 | * after we have made a final sigma, that would be wrong. If the final sigma | |
| 4361 | * occurs in the middle of the string we are working on, then we know that it | |
| 4362 | * should be a final sigma, but otherwise we can't be sure. */ | |
| 00f254e2 KW |
4363 | |
| 4364 | const UV uv = toLOWER_utf8(s, tmpbuf, &ulen); | |
| 4365 | ||
| 4366 | /* If the lower case is a small sigma, it may be that we need | |
| 4367 | * to change it to a final sigma. This happens at the end of | |
| 4368 | * a word that contains more than just this character, and only | |
| 4369 | * when we started with a capital sigma. */ | |
| 4370 | if (uv == UNICODE_GREEK_SMALL_LETTER_SIGMA && | |
| 4371 | s > send - len && /* Makes sure not the first letter */ | |
| 4372 | utf8_to_uvchr(s, 0) == UNICODE_GREEK_CAPITAL_LETTER_SIGMA | |
| 4373 | ) { | |
| 4374 | ||
| 4375 | /* We use the algorithm in: | |
| 4376 | * http://www.unicode.org/versions/Unicode5.0.0/ch03.pdf (C | |
| 4377 | * is a CAPITAL SIGMA): If C is preceded by a sequence | |
| 4378 | * consisting of a cased letter and a case-ignorable | |
| 4379 | * sequence, and C is not followed by a sequence consisting | |
| 4380 | * of a case ignorable sequence and then a cased letter, | |
| 4381 | * then when lowercasing C, C becomes a final sigma */ | |
| 4382 | ||
| 4383 | /* To determine if this is the end of a word, need to peek | |
| 4384 | * ahead. Look at the next character */ | |
| 4385 | const U8 *peek = s + u; | |
| 4386 | ||
| 4387 | /* Skip any case ignorable characters */ | |
| 4388 | while (peek < send && is_utf8_case_ignorable(peek)) { | |
| 4389 | peek += UTF8SKIP(peek); | |
| 4390 | } | |
| 4391 | ||
| 4392 | /* If we reached the end of the string without finding any | |
| 4393 | * non-case ignorable characters, or if the next such one | |
| 4394 | * is not-cased, then we have met the conditions for it | |
| 4395 | * being a final sigma with regards to peek ahead, and so | |
| 4396 | * must do peek behind for the remaining conditions. (We | |
| 4397 | * know there is stuff behind to look at since we tested | |
| 4398 | * above that this isn't the first letter) */ | |
| 4399 | if (peek >= send || ! is_utf8_cased(peek)) { | |
| 4400 | peek = utf8_hop(s, -1); | |
| 4401 | ||
| 4402 | /* Here are at the beginning of the first character | |
| 4403 | * before the original upper case sigma. Keep backing | |
| 4404 | * up, skipping any case ignorable characters */ | |
| 4405 | while (is_utf8_case_ignorable(peek)) { | |
| 4406 | peek = utf8_hop(peek, -1); | |
| 4407 | } | |
| 4408 | ||
| 4409 | /* Here peek points to the first byte of the closest | |
| 4410 | * non-case-ignorable character before the capital | |
| 4411 | * sigma. If it is cased, then by the Unicode | |
| 4412 | * algorithm, we should use a small final sigma instead | |
| 4413 | * of what we have */ | |
| 4414 | if (is_utf8_cased(peek)) { | |
| 4415 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, | |
| 4416 | UNICODE_GREEK_SMALL_LETTER_FINAL_SIGMA); | |
| 4417 | } | |
| 4418 | } | |
| 4419 | } | |
| 4420 | else { /* Not a context sensitive mapping */ | |
| 4421 | #endif /* End of commented out context sensitive */ | |
| 4422 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 4423 | ||
| 4424 | /* If the eventually required minimum size outgrows | |
| 4425 | * the available space, we need to grow. */ | |
| 4426 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 4427 | ||
| 4428 | /* If someone lowercases one million U+0130s we | |
| 4429 | * SvGROW() one million times. Or we could try | |
| 4430 | * guessing how much to allocate without allocating too | |
| 4431 | * much. Such is life. Another option would be to | |
| 4432 | * grow an extra byte or two more each time we need to | |
| 4433 | * grow, which would cut down the million to 500K, with | |
| 4434 | * little waste */ | |
| 4435 | SvGROW(dest, min); | |
| 4436 | d = (U8*)SvPVX(dest) + o; | |
| 4437 | } | |
| 4438 | #ifdef CONTEXT_DEPENDENT_CASING | |
| 4439 | } | |
| 4440 | #endif | |
| 4441 | /* Copy the newly lowercased letter to the output buffer we're | |
| 4442 | * building */ | |
| 4443 | Copy(tmpbuf, d, ulen, U8); | |
| 4444 | d += ulen; | |
| 4445 | s += u; | |
| 4446 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 4447 | } | |
| 4448 | #endif | |
| 4449 | } /* End of looping through the source string */ | |
| ec9af7d4 NC |
4450 | SvUTF8_on(dest); |
| 4451 | *d = '\0'; | |
| 4452 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 00f254e2 | 4453 | } else { /* Not utf8 */ |
| 31351b04 | 4454 | if (len) { |
| ec9af7d4 | 4455 | const U8 *const send = s + len; |
| 00f254e2 KW |
4456 | |
| 4457 | /* Use locale casing if in locale; regular style if not treating | |
| 4458 | * latin1 as having case; otherwise the latin1 casing. Do the | |
| 4459 | * whole thing in a tight loop, for speed, */ | |
| 2de3dbcc | 4460 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 4461 | TAINT; |
| ec9af7d4 NC |
4462 | SvTAINTED_on(dest); |
| 4463 | for (; s < send; d++, s++) | |
| 4464 | *d = toLOWER_LC(*s); | |
| 31351b04 | 4465 | } |
| 00f254e2 KW |
4466 | else if (! IN_UNI_8_BIT) { |
| 4467 | for (; s < send; d++, s++) { | |
| ec9af7d4 | 4468 | *d = toLOWER(*s); |
| 00f254e2 KW |
4469 | } |
| 4470 | } | |
| 4471 | else { | |
| 4472 | for (; s < send; d++, s++) { | |
| 4473 | *d = toLOWER_LATIN1(*s); | |
| 4474 | } | |
| 31351b04 | 4475 | } |
| bbce6d69 | 4476 | } |
| ec9af7d4 NC |
4477 | if (source != dest) { |
| 4478 | *d = '\0'; | |
| 4479 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 4480 | } | |
| 79072805 | 4481 | } |
| ec9af7d4 | 4482 | SvSETMAGIC(dest); |
| 79072805 LW |
4483 | RETURN; |
| 4484 | } | |
| 4485 | ||
| a0d0e21e | 4486 | PP(pp_quotemeta) |
| 79072805 | 4487 | { |
| 97aff369 | 4488 | dVAR; dSP; dTARGET; |
| 1b6737cc | 4489 | SV * const sv = TOPs; |
| a0d0e21e | 4490 | STRLEN len; |
| 0d46e09a | 4491 | register const char *s = SvPV_const(sv,len); |
| 79072805 | 4492 | |
| 7e2040f0 | 4493 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 4494 | if (len) { |
| 1b6737cc | 4495 | register char *d; |
| 862a34c6 | 4496 | SvUPGRADE(TARG, SVt_PV); |
| c07a80fd | 4497 | SvGROW(TARG, (len * 2) + 1); |
| a0d0e21e | 4498 | d = SvPVX(TARG); |
| 7e2040f0 | 4499 | if (DO_UTF8(sv)) { |
| 0dd2cdef | 4500 | while (len) { |
| fd400ab9 | 4501 | if (UTF8_IS_CONTINUED(*s)) { |
| 0dd2cdef LW |
4502 | STRLEN ulen = UTF8SKIP(s); |
| 4503 | if (ulen > len) | |
| 4504 | ulen = len; | |
| 4505 | len -= ulen; | |
| 4506 | while (ulen--) | |
| 4507 | *d++ = *s++; | |
| 4508 | } | |
| 4509 | else { | |
| 4510 | if (!isALNUM(*s)) | |
| 4511 | *d++ = '\\'; | |
| 4512 | *d++ = *s++; | |
| 4513 | len--; | |
| 4514 | } | |
| 4515 | } | |
| 7e2040f0 | 4516 | SvUTF8_on(TARG); |
| 0dd2cdef LW |
4517 | } |
| 4518 | else { | |
| 4519 | while (len--) { | |
| 4520 | if (!isALNUM(*s)) | |
| 4521 | *d++ = '\\'; | |
| 4522 | *d++ = *s++; | |
| 4523 | } | |
| 79072805 | 4524 | } |
| a0d0e21e | 4525 | *d = '\0'; |
| 349d4f2f | 4526 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
| 3aa33fe5 | 4527 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 4528 | } |
| a0d0e21e LW |
4529 | else |
| 4530 | sv_setpvn(TARG, s, len); | |
| ec93b65f | 4531 | SETTARG; |
| 79072805 LW |
4532 | RETURN; |
| 4533 | } | |
| 4534 | ||
| a0d0e21e | 4535 | /* Arrays. */ |
| 79072805 | 4536 | |
| a0d0e21e | 4537 | PP(pp_aslice) |
| 79072805 | 4538 | { |
| 97aff369 | 4539 | dVAR; dSP; dMARK; dORIGMARK; |
| 502c6561 | 4540 | register AV *const av = MUTABLE_AV(POPs); |
| 1b6737cc | 4541 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
| 79072805 | 4542 | |
| a0d0e21e | 4543 | if (SvTYPE(av) == SVt_PVAV) { |
| fc15ae8f | 4544 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 4ad10a0b VP |
4545 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
| 4546 | bool can_preserve = FALSE; | |
| 4547 | ||
| 4548 | if (localizing) { | |
| 4549 | MAGIC *mg; | |
| 4550 | HV *stash; | |
| 4551 | ||
| 4552 | can_preserve = SvCANEXISTDELETE(av); | |
| 4553 | } | |
| 4554 | ||
| 4555 | if (lval && localizing) { | |
| 1b6737cc | 4556 | register SV **svp; |
| 748a9306 | 4557 | I32 max = -1; |
| 924508f0 | 4558 | for (svp = MARK + 1; svp <= SP; svp++) { |
| 4ea561bc | 4559 | const I32 elem = SvIV(*svp); |
| 748a9306 LW |
4560 | if (elem > max) |
| 4561 | max = elem; | |
| 4562 | } | |
| 4563 | if (max > AvMAX(av)) | |
| 4564 | av_extend(av, max); | |
| 4565 | } | |
| 4ad10a0b | 4566 | |
| a0d0e21e | 4567 | while (++MARK <= SP) { |
| 1b6737cc | 4568 | register SV **svp; |
| 4ea561bc | 4569 | I32 elem = SvIV(*MARK); |
| 4ad10a0b | 4570 | bool preeminent = TRUE; |
| a0d0e21e | 4571 | |
| 748a9306 LW |
4572 | if (elem > 0) |
| 4573 | elem -= arybase; | |
| 4ad10a0b VP |
4574 | if (localizing && can_preserve) { |
| 4575 | /* If we can determine whether the element exist, | |
| 4576 | * Try to preserve the existenceness of a tied array | |
| 4577 | * element by using EXISTS and DELETE if possible. | |
| 4578 | * Fallback to FETCH and STORE otherwise. */ | |
| 4579 | preeminent = av_exists(av, elem); | |
| 4580 | } | |
| 4581 | ||
| a0d0e21e LW |
4582 | svp = av_fetch(av, elem, lval); |
| 4583 | if (lval) { | |
| 3280af22 | 4584 | if (!svp || *svp == &PL_sv_undef) |
| cea2e8a9 | 4585 | DIE(aTHX_ PL_no_aelem, elem); |
| 4ad10a0b VP |
4586 | if (localizing) { |
| 4587 | if (preeminent) | |
| 4588 | save_aelem(av, elem, svp); | |
| 4589 | else | |
| 4590 | SAVEADELETE(av, elem); | |
| 4591 | } | |
| 79072805 | 4592 | } |
| 3280af22 | 4593 | *MARK = svp ? *svp : &PL_sv_undef; |
| 79072805 LW |
4594 | } |
| 4595 | } | |
| 748a9306 | 4596 | if (GIMME != G_ARRAY) { |
| a0d0e21e | 4597 | MARK = ORIGMARK; |
| 04ab2c87 | 4598 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e LW |
4599 | SP = MARK; |
| 4600 | } | |
| 79072805 LW |
4601 | RETURN; |
| 4602 | } | |
| 4603 | ||
| 878d132a NC |
4604 | PP(pp_aeach) |
| 4605 | { | |
| 4606 | dVAR; | |
| 4607 | dSP; | |
| 502c6561 | 4608 | AV *array = MUTABLE_AV(POPs); |
| 878d132a | 4609 | const I32 gimme = GIMME_V; |
| 453d94a9 | 4610 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
| 878d132a NC |
4611 | const IV current = (*iterp)++; |
| 4612 | ||
| 4613 | if (current > av_len(array)) { | |
| 4614 | *iterp = 0; | |
| 4615 | if (gimme == G_SCALAR) | |
| 4616 | RETPUSHUNDEF; | |
| 4617 | else | |
| 4618 | RETURN; | |
| 4619 | } | |
| 4620 | ||
| 4621 | EXTEND(SP, 2); | |
| 4622 | mPUSHi(CopARYBASE_get(PL_curcop) + current); | |
| 4623 | if (gimme == G_ARRAY) { | |
| 4624 | SV **const element = av_fetch(array, current, 0); | |
| 4625 | PUSHs(element ? *element : &PL_sv_undef); | |
| 4626 | } | |
| 4627 | RETURN; | |
| 4628 | } | |
| 4629 | ||
| 4630 | PP(pp_akeys) | |
| 4631 | { | |
| 4632 | dVAR; | |
| 4633 | dSP; | |
| 502c6561 | 4634 | AV *array = MUTABLE_AV(POPs); |
| 878d132a NC |
4635 | const I32 gimme = GIMME_V; |
| 4636 | ||
| 4637 | *Perl_av_iter_p(aTHX_ array) = 0; | |
| 4638 | ||
| 4639 | if (gimme == G_SCALAR) { | |
| 4640 | dTARGET; | |
| 4641 | PUSHi(av_len(array) + 1); | |
| 4642 | } | |
| 4643 | else if (gimme == G_ARRAY) { | |
| 4644 | IV n = Perl_av_len(aTHX_ array); | |
| 4645 | IV i = CopARYBASE_get(PL_curcop); | |
| 4646 | ||
| 4647 | EXTEND(SP, n + 1); | |
| 4648 | ||
| 4649 | if (PL_op->op_type == OP_AKEYS) { | |
| 4650 | n += i; | |
| 4651 | for (; i <= n; i++) { | |
| 4652 | mPUSHi(i); | |
| 4653 | } | |
| 4654 | } | |
| 4655 | else { | |
| 4656 | for (i = 0; i <= n; i++) { | |
| 4657 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
| 4658 | PUSHs(elem ? *elem : &PL_sv_undef); | |
| 4659 | } | |
| 4660 | } | |
| 4661 | } | |
| 4662 | RETURN; | |
| 4663 | } | |
| 4664 | ||
| 79072805 LW |
4665 | /* Associative arrays. */ |
| 4666 | ||
| 4667 | PP(pp_each) | |
| 4668 | { | |
| 97aff369 | 4669 | dVAR; |
| 39644a26 | 4670 | dSP; |
| 85fbaab2 | 4671 | HV * hash = MUTABLE_HV(POPs); |
| c07a80fd | 4672 | HE *entry; |
| f54cb97a | 4673 | const I32 gimme = GIMME_V; |
| 8ec5e241 | 4674 | |
| c07a80fd | 4675 | PUTBACK; |
| c750a3ec | 4676 | /* might clobber stack_sp */ |
| 6d822dc4 | 4677 | entry = hv_iternext(hash); |
| c07a80fd | 4678 | SPAGAIN; |
| 79072805 | 4679 | |
| 79072805 LW |
4680 | EXTEND(SP, 2); |
| 4681 | if (entry) { | |
| 1b6737cc | 4682 | SV* const sv = hv_iterkeysv(entry); |
| 574c8022 | 4683 | PUSHs(sv); /* won't clobber stack_sp */ |
| 54310121 | 4684 | if (gimme == G_ARRAY) { |
| 59af0135 | 4685 | SV *val; |
| c07a80fd | 4686 | PUTBACK; |
| c750a3ec | 4687 | /* might clobber stack_sp */ |
| 6d822dc4 | 4688 | val = hv_iterval(hash, entry); |
| c07a80fd | 4689 | SPAGAIN; |
| 59af0135 | 4690 | PUSHs(val); |
| 79072805 | 4691 | } |
| 79072805 | 4692 | } |
| 54310121 | 4693 | else if (gimme == G_SCALAR) |
| 79072805 LW |
4694 | RETPUSHUNDEF; |
| 4695 | ||
| 4696 | RETURN; | |
| 4697 | } | |
| 4698 | ||
| 7332a6c4 VP |
4699 | STATIC OP * |
| 4700 | S_do_delete_local(pTHX) | |
| 79072805 | 4701 | { |
| 97aff369 | 4702 | dVAR; |
| 39644a26 | 4703 | dSP; |
| f54cb97a | 4704 | const I32 gimme = GIMME_V; |
| 7332a6c4 VP |
4705 | const MAGIC *mg; |
| 4706 | HV *stash; | |
| 4707 | ||
| 4708 | if (PL_op->op_private & OPpSLICE) { | |
| 4709 | dMARK; dORIGMARK; | |
| 4710 | SV * const osv = POPs; | |
| 4711 | const bool tied = SvRMAGICAL(osv) | |
| 4712 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
| 4713 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
| 4714 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
| 4715 | const U32 type = SvTYPE(osv); | |
| 4716 | if (type == SVt_PVHV) { /* hash element */ | |
| 4717 | HV * const hv = MUTABLE_HV(osv); | |
| 4718 | while (++MARK <= SP) { | |
| 4719 | SV * const keysv = *MARK; | |
| 4720 | SV *sv = NULL; | |
| 4721 | bool preeminent = TRUE; | |
| 4722 | if (can_preserve) | |
| 4723 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 4724 | if (tied) { | |
| 4725 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
| 4726 | if (he) | |
| 4727 | sv = HeVAL(he); | |
| 4728 | else | |
| 4729 | preeminent = FALSE; | |
| 4730 | } | |
| 4731 | else { | |
| 4732 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
| 4733 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4734 | } | |
| 4735 | if (preeminent) { | |
| 4736 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
| 4737 | if (tied) { | |
| 4738 | *MARK = sv_mortalcopy(sv); | |
| 4739 | mg_clear(sv); | |
| 4740 | } else | |
| 4741 | *MARK = sv; | |
| 4742 | } | |
| 4743 | else { | |
| 4744 | SAVEHDELETE(hv, keysv); | |
| 4745 | *MARK = &PL_sv_undef; | |
| 4746 | } | |
| 4747 | } | |
| 4748 | } | |
| 4749 | else if (type == SVt_PVAV) { /* array element */ | |
| 4750 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4751 | AV * const av = MUTABLE_AV(osv); | |
| 4752 | while (++MARK <= SP) { | |
| 4753 | I32 idx = SvIV(*MARK); | |
| 4754 | SV *sv = NULL; | |
| 4755 | bool preeminent = TRUE; | |
| 4756 | if (can_preserve) | |
| 4757 | preeminent = av_exists(av, idx); | |
| 4758 | if (tied) { | |
| 4759 | SV **svp = av_fetch(av, idx, 1); | |
| 4760 | if (svp) | |
| 4761 | sv = *svp; | |
| 4762 | else | |
| 4763 | preeminent = FALSE; | |
| 4764 | } | |
| 4765 | else { | |
| 4766 | sv = av_delete(av, idx, 0); | |
| 4767 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4768 | } | |
| 4769 | if (preeminent) { | |
| 4770 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
| 4771 | if (tied) { | |
| 4772 | *MARK = sv_mortalcopy(sv); | |
| 4773 | mg_clear(sv); | |
| 4774 | } else | |
| 4775 | *MARK = sv; | |
| 4776 | } | |
| 4777 | else { | |
| 4778 | SAVEADELETE(av, idx); | |
| 4779 | *MARK = &PL_sv_undef; | |
| 4780 | } | |
| 4781 | } | |
| 4782 | } | |
| 4783 | } | |
| 4784 | else | |
| 4785 | DIE(aTHX_ "Not a HASH reference"); | |
| 4786 | if (gimme == G_VOID) | |
| 4787 | SP = ORIGMARK; | |
| 4788 | else if (gimme == G_SCALAR) { | |
| 4789 | MARK = ORIGMARK; | |
| 4790 | if (SP > MARK) | |
| 4791 | *++MARK = *SP; | |
| 4792 | else | |
| 4793 | *++MARK = &PL_sv_undef; | |
| 4794 | SP = MARK; | |
| 4795 | } | |
| 4796 | } | |
| 4797 | else { | |
| 4798 | SV * const keysv = POPs; | |
| 4799 | SV * const osv = POPs; | |
| 4800 | const bool tied = SvRMAGICAL(osv) | |
| 4801 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
| 4802 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
| 4803 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
| 4804 | const U32 type = SvTYPE(osv); | |
| 4805 | SV *sv = NULL; | |
| 4806 | if (type == SVt_PVHV) { | |
| 4807 | HV * const hv = MUTABLE_HV(osv); | |
| 4808 | bool preeminent = TRUE; | |
| 4809 | if (can_preserve) | |
| 4810 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 4811 | if (tied) { | |
| 4812 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
| 4813 | if (he) | |
| 4814 | sv = HeVAL(he); | |
| 4815 | else | |
| 4816 | preeminent = FALSE; | |
| 4817 | } | |
| 4818 | else { | |
| 4819 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
| 4820 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4821 | } | |
| 4822 | if (preeminent) { | |
| 4823 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
| 4824 | if (tied) { | |
| 4825 | SV *nsv = sv_mortalcopy(sv); | |
| 4826 | mg_clear(sv); | |
| 4827 | sv = nsv; | |
| 4828 | } | |
| 4829 | } | |
| 4830 | else | |
| 4831 | SAVEHDELETE(hv, keysv); | |
| 4832 | } | |
| 4833 | else if (type == SVt_PVAV) { | |
| 4834 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4835 | AV * const av = MUTABLE_AV(osv); | |
| 4836 | I32 idx = SvIV(keysv); | |
| 4837 | bool preeminent = TRUE; | |
| 4838 | if (can_preserve) | |
| 4839 | preeminent = av_exists(av, idx); | |
| 4840 | if (tied) { | |
| 4841 | SV **svp = av_fetch(av, idx, 1); | |
| 4842 | if (svp) | |
| 4843 | sv = *svp; | |
| 4844 | else | |
| 4845 | preeminent = FALSE; | |
| 4846 | } | |
| 4847 | else { | |
| 4848 | sv = av_delete(av, idx, 0); | |
| 4849 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4850 | } | |
| 4851 | if (preeminent) { | |
| 4852 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
| 4853 | if (tied) { | |
| 4854 | SV *nsv = sv_mortalcopy(sv); | |
| 4855 | mg_clear(sv); | |
| 4856 | sv = nsv; | |
| 4857 | } | |
| 4858 | } | |
| 4859 | else | |
| 4860 | SAVEADELETE(av, idx); | |
| 4861 | } | |
| 4862 | else | |
| 4863 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 4864 | } | |
| 4865 | else | |
| 4866 | DIE(aTHX_ "Not a HASH reference"); | |
| 4867 | if (!sv) | |
| 4868 | sv = &PL_sv_undef; | |
| 4869 | if (gimme != G_VOID) | |
| 4870 | PUSHs(sv); | |
| 4871 | } | |
| 4872 | ||
| 4873 | RETURN; | |
| 4874 | } | |
| 4875 | ||
| 4876 | PP(pp_delete) | |
| 4877 | { | |
| 4878 | dVAR; | |
| 4879 | dSP; | |
| 4880 | I32 gimme; | |
| 4881 | I32 discard; | |
| 4882 | ||
| 4883 | if (PL_op->op_private & OPpLVAL_INTRO) | |
| 4884 | return do_delete_local(); | |
| 4885 | ||
| 4886 | gimme = GIMME_V; | |
| 4887 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
| 5f05dabc | 4888 | |
| 533c011a | 4889 | if (PL_op->op_private & OPpSLICE) { |
| 5f05dabc | 4890 | dMARK; dORIGMARK; |
| 85fbaab2 | 4891 | HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc | 4892 | const U32 hvtype = SvTYPE(hv); |
| 01020589 GS |
4893 | if (hvtype == SVt_PVHV) { /* hash element */ |
| 4894 | while (++MARK <= SP) { | |
| 1b6737cc | 4895 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
| 01020589 GS |
4896 | *MARK = sv ? sv : &PL_sv_undef; |
| 4897 | } | |
| 5f05dabc | 4898 | } |
| 6d822dc4 MS |
4899 | else if (hvtype == SVt_PVAV) { /* array element */ |
| 4900 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4901 | while (++MARK <= SP) { | |
| 502c6561 | 4902 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
| 6d822dc4 MS |
4903 | *MARK = sv ? sv : &PL_sv_undef; |
| 4904 | } | |
| 4905 | } | |
| 01020589 GS |
4906 | } |
| 4907 | else | |
| 4908 | DIE(aTHX_ "Not a HASH reference"); | |
| 54310121 | 4909 | if (discard) |
| 4910 | SP = ORIGMARK; | |
| 4911 | else if (gimme == G_SCALAR) { | |
| 5f05dabc | 4912 | MARK = ORIGMARK; |
| 9111c9c0 DM |
4913 | if (SP > MARK) |
| 4914 | *++MARK = *SP; | |
| 4915 | else | |
| 4916 | *++MARK = &PL_sv_undef; | |
| 5f05dabc | 4917 | SP = MARK; |
| 4918 | } | |
| 4919 | } | |
| 4920 | else { | |
| 4921 | SV *keysv = POPs; | |
| 85fbaab2 | 4922 | HV * const hv = MUTABLE_HV(POPs); |
| 295d248e | 4923 | SV *sv = NULL; |
| 97fcbf96 MB |
4924 | if (SvTYPE(hv) == SVt_PVHV) |
| 4925 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
| 01020589 GS |
4926 | else if (SvTYPE(hv) == SVt_PVAV) { |
| 4927 | if (PL_op->op_flags & OPf_SPECIAL) | |
| 502c6561 | 4928 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
| af288a60 HS |
4929 | else |
| 4930 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 01020589 | 4931 | } |
| 97fcbf96 | 4932 | else |
| cea2e8a9 | 4933 | DIE(aTHX_ "Not a HASH reference"); |
| 5f05dabc | 4934 | if (!sv) |
| 3280af22 | 4935 | sv = &PL_sv_undef; |
| 54310121 | 4936 | if (!discard) |
| 4937 | PUSHs(sv); | |
| 79072805 | 4938 | } |
| 79072805 LW |
4939 | RETURN; |
| 4940 | } | |
| 4941 | ||
| a0d0e21e | 4942 | PP(pp_exists) |
| 79072805 | 4943 | { |
| 97aff369 | 4944 | dVAR; |
| 39644a26 | 4945 | dSP; |
| afebc493 GS |
4946 | SV *tmpsv; |
| 4947 | HV *hv; | |
| 4948 | ||
| 4949 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
| 4950 | GV *gv; | |
| 0bd48802 | 4951 | SV * const sv = POPs; |
| f2c0649b | 4952 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
| afebc493 GS |
4953 | if (cv) |
| 4954 | RETPUSHYES; | |
| 4955 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
| 4956 | RETPUSHYES; | |
| 4957 | RETPUSHNO; | |
| 4958 | } | |
| 4959 | tmpsv = POPs; | |
| 85fbaab2 | 4960 | hv = MUTABLE_HV(POPs); |
| c750a3ec | 4961 | if (SvTYPE(hv) == SVt_PVHV) { |
| ae77835f | 4962 | if (hv_exists_ent(hv, tmpsv, 0)) |
| c750a3ec | 4963 | RETPUSHYES; |
| ef54e1a4 JH |
4964 | } |
| 4965 | else if (SvTYPE(hv) == SVt_PVAV) { | |
| 01020589 | 4966 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
| 502c6561 | 4967 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
| 01020589 GS |
4968 | RETPUSHYES; |
| 4969 | } | |
| ef54e1a4 JH |
4970 | } |
| 4971 | else { | |
| cea2e8a9 | 4972 | DIE(aTHX_ "Not a HASH reference"); |
| a0d0e21e | 4973 | } |
| a0d0e21e LW |
4974 | RETPUSHNO; |
| 4975 | } | |
| 79072805 | 4976 | |
| a0d0e21e LW |
4977 | PP(pp_hslice) |
| 4978 | { | |
| 97aff369 | 4979 | dVAR; dSP; dMARK; dORIGMARK; |
| 85fbaab2 | 4980 | register HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc AL |
4981 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
| 4982 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
| d30e492c | 4983 | bool can_preserve = FALSE; |
| 79072805 | 4984 | |
| eb85dfd3 DM |
4985 | if (localizing) { |
| 4986 | MAGIC *mg; | |
| 4987 | HV *stash; | |
| 4988 | ||
| d30e492c VP |
4989 | if (SvCANEXISTDELETE(hv) || mg_find((const SV *)hv, PERL_MAGIC_env)) |
| 4990 | can_preserve = TRUE; | |
| eb85dfd3 DM |
4991 | } |
| 4992 | ||
| 6d822dc4 | 4993 | while (++MARK <= SP) { |
| 1b6737cc | 4994 | SV * const keysv = *MARK; |
| 6d822dc4 MS |
4995 | SV **svp; |
| 4996 | HE *he; | |
| d30e492c VP |
4997 | bool preeminent = TRUE; |
| 4998 | ||
| 4999 | if (localizing && can_preserve) { | |
| 5000 | /* If we can determine whether the element exist, | |
| 5001 | * try to preserve the existenceness of a tied hash | |
| 5002 | * element by using EXISTS and DELETE if possible. | |
| 5003 | * Fallback to FETCH and STORE otherwise. */ | |
| 5004 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 6d822dc4 | 5005 | } |
| eb85dfd3 | 5006 | |
| 6d822dc4 | 5007 | he = hv_fetch_ent(hv, keysv, lval, 0); |
| fe5bfecd | 5008 | svp = he ? &HeVAL(he) : NULL; |
| eb85dfd3 | 5009 | |
| 6d822dc4 MS |
5010 | if (lval) { |
| 5011 | if (!svp || *svp == &PL_sv_undef) { | |
| be2597df | 5012 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
| 6d822dc4 MS |
5013 | } |
| 5014 | if (localizing) { | |
| 7a2e501a | 5015 | if (HvNAME_get(hv) && isGV(*svp)) |
| 159b6efe | 5016 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
| 47cfc530 VP |
5017 | else if (preeminent) |
| 5018 | save_helem_flags(hv, keysv, svp, | |
| 5019 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
| 5020 | else | |
| 5021 | SAVEHDELETE(hv, keysv); | |
| 6d822dc4 MS |
5022 | } |
| 5023 | } | |
| 5024 | *MARK = svp ? *svp : &PL_sv_undef; | |
| 79072805 | 5025 | } |
| a0d0e21e LW |
5026 | if (GIMME != G_ARRAY) { |
| 5027 | MARK = ORIGMARK; | |
| 04ab2c87 | 5028 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e | 5029 | SP = MARK; |
| 79072805 | 5030 | } |
| a0d0e21e LW |
5031 | RETURN; |
| 5032 | } | |
| 5033 | ||
| 5034 | /* List operators. */ | |
| 5035 | ||
| 5036 | PP(pp_list) | |
| 5037 | { | |
| 97aff369 | 5038 | dVAR; dSP; dMARK; |
| a0d0e21e LW |
5039 | if (GIMME != G_ARRAY) { |
| 5040 | if (++MARK <= SP) | |
| 5041 | *MARK = *SP; /* unwanted list, return last item */ | |
| 8990e307 | 5042 | else |
| 3280af22 | 5043 | *MARK = &PL_sv_undef; |
| a0d0e21e | 5044 | SP = MARK; |
| 79072805 | 5045 | } |
| a0d0e21e | 5046 | RETURN; |
| 79072805 LW |
5047 | } |
| 5048 | ||
| a0d0e21e | 5049 | PP(pp_lslice) |
| 79072805 | 5050 | { |
| 97aff369 | 5051 | dVAR; |
| 39644a26 | 5052 | dSP; |
| 1b6737cc AL |
5053 | SV ** const lastrelem = PL_stack_sp; |
| 5054 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
| 5055 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
| 5056 | register SV ** const firstrelem = lastlelem + 1; | |
| fc15ae8f | 5057 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 42e73ed0 | 5058 | I32 is_something_there = FALSE; |
| 1b6737cc AL |
5059 | |
| 5060 | register const I32 max = lastrelem - lastlelem; | |
| a0d0e21e | 5061 | register SV **lelem; |
| a0d0e21e LW |
5062 | |
| 5063 | if (GIMME != G_ARRAY) { | |
| 4ea561bc | 5064 | I32 ix = SvIV(*lastlelem); |
| 748a9306 LW |
5065 | if (ix < 0) |
| 5066 | ix += max; | |
| 5067 | else | |
| 5068 | ix -= arybase; | |
| a0d0e21e | 5069 | if (ix < 0 || ix >= max) |
| 3280af22 | 5070 | *firstlelem = &PL_sv_undef; |
| a0d0e21e LW |
5071 | else |
| 5072 | *firstlelem = firstrelem[ix]; | |
| 5073 | SP = firstlelem; | |
| 5074 | RETURN; | |
| 5075 | } | |
| 5076 | ||
| 5077 | if (max == 0) { | |
| 5078 | SP = firstlelem - 1; | |
| 5079 | RETURN; | |
| 5080 | } | |
| 5081 | ||
| 5082 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
| 4ea561bc | 5083 | I32 ix = SvIV(*lelem); |
| c73bf8e3 | 5084 | if (ix < 0) |
| a0d0e21e | 5085 | ix += max; |
| b13b2135 | 5086 | else |
| 748a9306 | 5087 | ix -= arybase; |
| c73bf8e3 HS |
5088 | if (ix < 0 || ix >= max) |
| 5089 | *lelem = &PL_sv_undef; | |
| 5090 | else { | |
| 5091 | is_something_there = TRUE; | |
| 5092 | if (!(*lelem = firstrelem[ix])) | |
| 3280af22 | 5093 | *lelem = &PL_sv_undef; |
| 748a9306 | 5094 | } |
| 79072805 | 5095 | } |
| 4633a7c4 LW |
5096 | if (is_something_there) |
| 5097 | SP = lastlelem; | |
| 5098 | else | |
| 5099 | SP = firstlelem - 1; | |
| 79072805 LW |
5100 | RETURN; |
| 5101 | } | |
| 5102 | ||
| a0d0e21e LW |
5103 | PP(pp_anonlist) |
| 5104 | { | |
| 97aff369 | 5105 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc | 5106 | const I32 items = SP - MARK; |
| ad64d0ec | 5107 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
| 44a8e56a | 5108 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
| 6e449a3a MHM |
5109 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
| 5110 | ? newRV_noinc(av) : av); | |
| a0d0e21e LW |
5111 | RETURN; |
| 5112 | } | |
| 5113 | ||
| 5114 | PP(pp_anonhash) | |
| 79072805 | 5115 | { |
| 97aff369 | 5116 | dVAR; dSP; dMARK; dORIGMARK; |
| 78c72037 | 5117 | HV* const hv = newHV(); |
| a0d0e21e LW |
5118 | |
| 5119 | while (MARK < SP) { | |
| 1b6737cc | 5120 | SV * const key = *++MARK; |
| 561b68a9 | 5121 | SV * const val = newSV(0); |
| a0d0e21e LW |
5122 | if (MARK < SP) |
| 5123 | sv_setsv(val, *++MARK); | |
| a2a5de95 NC |
5124 | else |
| 5125 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); | |
| f12c7020 | 5126 | (void)hv_store_ent(hv,key,val,0); |
| 79072805 | 5127 | } |
| a0d0e21e | 5128 | SP = ORIGMARK; |
| 6e449a3a | 5129 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
| ad64d0ec | 5130 | ? newRV_noinc(MUTABLE_SV(hv)) : MUTABLE_SV(hv)); |
| 79072805 LW |
5131 | RETURN; |
| 5132 | } | |
| 5133 | ||
| a0d0e21e | 5134 | PP(pp_splice) |
| 79072805 | 5135 | { |
| 27da23d5 | 5136 | dVAR; dSP; dMARK; dORIGMARK; |
| 502c6561 | 5137 | register AV *ary = MUTABLE_AV(*++MARK); |
| a0d0e21e LW |
5138 | register SV **src; |
| 5139 | register SV **dst; | |
| 5140 | register I32 i; | |
| 5141 | register I32 offset; | |
| 5142 | register I32 length; | |
| 5143 | I32 newlen; | |
| 5144 | I32 after; | |
| 5145 | I32 diff; | |
| ad64d0ec | 5146 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 93965878 | 5147 | |
| 1b6737cc | 5148 | if (mg) { |
| ad64d0ec | 5149 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 93965878 | 5150 | PUSHMARK(MARK); |
| 8ec5e241 | 5151 | PUTBACK; |
| d343c3ef | 5152 | ENTER_with_name("call_SPLICE"); |
| 864dbfa3 | 5153 | call_method("SPLICE",GIMME_V); |
| d343c3ef | 5154 | LEAVE_with_name("call_SPLICE"); |
| 93965878 NIS |
5155 | SPAGAIN; |
| 5156 | RETURN; | |
| 5157 | } | |
| 79072805 | 5158 | |
| a0d0e21e | 5159 | SP++; |
| 79072805 | 5160 | |
| a0d0e21e | 5161 | if (++MARK < SP) { |
| 4ea561bc | 5162 | offset = i = SvIV(*MARK); |
| a0d0e21e | 5163 | if (offset < 0) |
| 93965878 | 5164 | offset += AvFILLp(ary) + 1; |
| a0d0e21e | 5165 | else |
| fc15ae8f | 5166 | offset -= CopARYBASE_get(PL_curcop); |
| 84902520 | 5167 | if (offset < 0) |
| cea2e8a9 | 5168 | DIE(aTHX_ PL_no_aelem, i); |
| a0d0e21e LW |
5169 | if (++MARK < SP) { |
| 5170 | length = SvIVx(*MARK++); | |
| 48cdf507 GA |
5171 | if (length < 0) { |
| 5172 | length += AvFILLp(ary) - offset + 1; | |
| 5173 | if (length < 0) | |
| 5174 | length = 0; | |
| 5175 | } | |
| 79072805 LW |
5176 | } |
| 5177 | else | |
| a0d0e21e | 5178 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
| 79072805 | 5179 | } |
| a0d0e21e LW |
5180 | else { |
| 5181 | offset = 0; | |
| 5182 | length = AvMAX(ary) + 1; | |
| 5183 | } | |
| 8cbc2e3b | 5184 | if (offset > AvFILLp(ary) + 1) { |
| a2a5de95 | 5185 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); |
| 93965878 | 5186 | offset = AvFILLp(ary) + 1; |
| 8cbc2e3b | 5187 | } |
| 93965878 | 5188 | after = AvFILLp(ary) + 1 - (offset + length); |
| a0d0e21e LW |
5189 | if (after < 0) { /* not that much array */ |
| 5190 | length += after; /* offset+length now in array */ | |
| 5191 | after = 0; | |
| 5192 | if (!AvALLOC(ary)) | |
| 5193 | av_extend(ary, 0); | |
| 5194 | } | |
| 5195 | ||
| 5196 | /* At this point, MARK .. SP-1 is our new LIST */ | |
| 5197 | ||
| 5198 | newlen = SP - MARK; | |
| 5199 | diff = newlen - length; | |
| 13d7cbc1 GS |
5200 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
| 5201 | av_reify(ary); | |
| a0d0e21e | 5202 | |
| 50528de0 WL |
5203 | /* make new elements SVs now: avoid problems if they're from the array */ |
| 5204 | for (dst = MARK, i = newlen; i; i--) { | |
| 1b6737cc | 5205 | SV * const h = *dst; |
| f2b990bf | 5206 | *dst++ = newSVsv(h); |
| 50528de0 WL |
5207 | } |
| 5208 | ||
| a0d0e21e | 5209 | if (diff < 0) { /* shrinking the area */ |
| 95b63a38 | 5210 | SV **tmparyval = NULL; |
| a0d0e21e | 5211 | if (newlen) { |
| a02a5408 | 5212 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
| a0d0e21e | 5213 | Copy(MARK, tmparyval, newlen, SV*); |
| 79072805 | 5214 | } |
| a0d0e21e LW |
5215 | |
| 5216 | MARK = ORIGMARK + 1; | |
| 5217 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 5218 | MEXTEND(MARK, length); | |
| 5219 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
| 5220 | if (AvREAL(ary)) { | |
| bbce6d69 | 5221 | EXTEND_MORTAL(length); |
| 36477c24 | 5222 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 5223 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 5224 | dst++; |
| 5225 | } | |
| a0d0e21e LW |
5226 | } |
| 5227 | MARK += length - 1; | |
| 79072805 | 5228 | } |
| a0d0e21e LW |
5229 | else { |
| 5230 | *MARK = AvARRAY(ary)[offset+length-1]; | |
| 5231 | if (AvREAL(ary)) { | |
| d689ffdd | 5232 | sv_2mortal(*MARK); |
| a0d0e21e LW |
5233 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
| 5234 | SvREFCNT_dec(*dst++); /* free them now */ | |
| 79072805 | 5235 | } |
| a0d0e21e | 5236 | } |
| 93965878 | 5237 | AvFILLp(ary) += diff; |
| a0d0e21e LW |
5238 | |
| 5239 | /* pull up or down? */ | |
| 5240 | ||
| 5241 | if (offset < after) { /* easier to pull up */ | |
| 5242 | if (offset) { /* esp. if nothing to pull */ | |
| 5243 | src = &AvARRAY(ary)[offset-1]; | |
| 5244 | dst = src - diff; /* diff is negative */ | |
| 5245 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
| 5246 | *dst-- = *src--; | |
| 79072805 | 5247 | } |
| a0d0e21e | 5248 | dst = AvARRAY(ary); |
| 9c6bc640 | 5249 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
| a0d0e21e LW |
5250 | AvMAX(ary) += diff; |
| 5251 | } | |
| 5252 | else { | |
| 5253 | if (after) { /* anything to pull down? */ | |
| 5254 | src = AvARRAY(ary) + offset + length; | |
| 5255 | dst = src + diff; /* diff is negative */ | |
| 5256 | Move(src, dst, after, SV*); | |
| 79072805 | 5257 | } |
| 93965878 | 5258 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
| a0d0e21e LW |
5259 | /* avoid later double free */ |
| 5260 | } | |
| 5261 | i = -diff; | |
| 5262 | while (i) | |
| 3280af22 | 5263 | dst[--i] = &PL_sv_undef; |
| a0d0e21e LW |
5264 | |
| 5265 | if (newlen) { | |
| 50528de0 | 5266 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
| a0d0e21e LW |
5267 | Safefree(tmparyval); |
| 5268 | } | |
| 5269 | } | |
| 5270 | else { /* no, expanding (or same) */ | |
| d3961450 | 5271 | SV** tmparyval = NULL; |
| a0d0e21e | 5272 | if (length) { |
| a02a5408 | 5273 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
| a0d0e21e LW |
5274 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
| 5275 | } | |
| 5276 | ||
| 5277 | if (diff > 0) { /* expanding */ | |
| a0d0e21e | 5278 | /* push up or down? */ |
| a0d0e21e LW |
5279 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
| 5280 | if (offset) { | |
| 5281 | src = AvARRAY(ary); | |
| 5282 | dst = src - diff; | |
| 5283 | Move(src, dst, offset, SV*); | |
| 79072805 | 5284 | } |
| 9c6bc640 | 5285 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
| a0d0e21e | 5286 | AvMAX(ary) += diff; |
| 93965878 | 5287 | AvFILLp(ary) += diff; |
| 79072805 LW |
5288 | } |
| 5289 | else { | |
| 93965878 NIS |
5290 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
| 5291 | av_extend(ary, AvFILLp(ary) + diff); | |
| 5292 | AvFILLp(ary) += diff; | |
| a0d0e21e LW |
5293 | |
| 5294 | if (after) { | |
| 93965878 | 5295 | dst = AvARRAY(ary) + AvFILLp(ary); |
| a0d0e21e LW |
5296 | src = dst - diff; |
| 5297 | for (i = after; i; i--) { | |
| 5298 | *dst-- = *src--; | |
| 5299 | } | |
| 79072805 LW |
5300 | } |
| 5301 | } | |
| a0d0e21e LW |
5302 | } |
| 5303 | ||
| 50528de0 WL |
5304 | if (newlen) { |
| 5305 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
| a0d0e21e | 5306 | } |
| 50528de0 | 5307 | |
| a0d0e21e LW |
5308 | MARK = ORIGMARK + 1; |
| 5309 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 5310 | if (length) { | |
| 5311 | Copy(tmparyval, MARK, length, SV*); | |
| 5312 | if (AvREAL(ary)) { | |
| bbce6d69 | 5313 | EXTEND_MORTAL(length); |
| 36477c24 | 5314 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 5315 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 5316 | dst++; |
| 5317 | } | |
| 79072805 LW |
5318 | } |
| 5319 | } | |
| a0d0e21e LW |
5320 | MARK += length - 1; |
| 5321 | } | |
| 5322 | else if (length--) { | |
| 5323 | *MARK = tmparyval[length]; | |
| 5324 | if (AvREAL(ary)) { | |
| d689ffdd | 5325 | sv_2mortal(*MARK); |
| a0d0e21e LW |
5326 | while (length-- > 0) |
| 5327 | SvREFCNT_dec(tmparyval[length]); | |
| 79072805 | 5328 | } |
| 79072805 | 5329 | } |
| a0d0e21e | 5330 | else |
| 3280af22 | 5331 | *MARK = &PL_sv_undef; |
| d3961450 | 5332 | Safefree(tmparyval); |
| 79072805 | 5333 | } |
| a0d0e21e | 5334 | SP = MARK; |
| 79072805 LW |
5335 | RETURN; |
| 5336 | } | |
| 5337 | ||
| a0d0e21e | 5338 | PP(pp_push) |
| 79072805 | 5339 | { |
| 27da23d5 | 5340 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 502c6561 | 5341 | register AV * const ary = MUTABLE_AV(*++MARK); |
| ad64d0ec | 5342 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 79072805 | 5343 | |
| 1b6737cc | 5344 | if (mg) { |
| ad64d0ec | 5345 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 93965878 NIS |
5346 | PUSHMARK(MARK); |
| 5347 | PUTBACK; | |
| d343c3ef | 5348 | ENTER_with_name("call_PUSH"); |
| 864dbfa3 | 5349 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| d343c3ef | 5350 | LEAVE_with_name("call_PUSH"); |
| 93965878 | 5351 | SPAGAIN; |
| 93965878 | 5352 | } |
| a60c0954 | 5353 | else { |
| 89c14e2e | 5354 | PL_delaymagic = DM_DELAY; |
| a60c0954 | 5355 | for (++MARK; MARK <= SP; MARK++) { |
| 561b68a9 | 5356 | SV * const sv = newSV(0); |
| a60c0954 NIS |
5357 | if (*MARK) |
| 5358 | sv_setsv(sv, *MARK); | |
| 0a75904b | 5359 | av_store(ary, AvFILLp(ary)+1, sv); |
| a60c0954 | 5360 | } |
| 354b0578 | 5361 | if (PL_delaymagic & DM_ARRAY_ISA) |
| ad64d0ec | 5362 | mg_set(MUTABLE_SV(ary)); |
| 89c14e2e BB |
5363 | |
| 5364 | PL_delaymagic = 0; | |
| 6eeabd23 VP |
5365 | } |
| 5366 | SP = ORIGMARK; | |
| 5367 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
| 5368 | PUSHi( AvFILL(ary) + 1 ); | |
| 79072805 | 5369 | } |
| 79072805 LW |
5370 | RETURN; |
| 5371 | } | |
| 5372 | ||
| a0d0e21e | 5373 | PP(pp_shift) |
| 79072805 | 5374 | { |
| 97aff369 | 5375 | dVAR; |
| 39644a26 | 5376 | dSP; |
| 538f5756 RZ |
5377 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
| 5378 | ? MUTABLE_AV(GvAV(PL_defgv)) : MUTABLE_AV(POPs); | |
| 789b4bc9 | 5379 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
| 79072805 | 5380 | EXTEND(SP, 1); |
| c2b4a044 | 5381 | assert (sv); |
| d689ffdd | 5382 | if (AvREAL(av)) |
| a0d0e21e LW |
5383 | (void)sv_2mortal(sv); |
| 5384 | PUSHs(sv); | |
| 79072805 | 5385 | RETURN; |
| 79072805 LW |
5386 | } |
| 5387 | ||
| a0d0e21e | 5388 | PP(pp_unshift) |
| 79072805 | 5389 | { |
| 27da23d5 | 5390 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 502c6561 | 5391 | register AV *ary = MUTABLE_AV(*++MARK); |
| ad64d0ec | 5392 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 93965878 | 5393 | |
| 1b6737cc | 5394 | if (mg) { |
| ad64d0ec | 5395 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 7fd66d9d | 5396 | PUSHMARK(MARK); |
| 93965878 | 5397 | PUTBACK; |
| d343c3ef | 5398 | ENTER_with_name("call_UNSHIFT"); |
| 864dbfa3 | 5399 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
| d343c3ef | 5400 | LEAVE_with_name("call_UNSHIFT"); |
| 93965878 | 5401 | SPAGAIN; |
| 93965878 | 5402 | } |
| a60c0954 | 5403 | else { |
| 1b6737cc | 5404 | register I32 i = 0; |
| a60c0954 NIS |
5405 | av_unshift(ary, SP - MARK); |
| 5406 | while (MARK < SP) { | |
| 1b6737cc | 5407 | SV * const sv = newSVsv(*++MARK); |
| a60c0954 NIS |
5408 | (void)av_store(ary, i++, sv); |
| 5409 | } | |
| 79072805 | 5410 | } |
| a0d0e21e | 5411 | SP = ORIGMARK; |
| 6eeabd23 | 5412 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
| 5658d0a9 LR |
5413 | PUSHi( AvFILL(ary) + 1 ); |
| 5414 | } | |
| 79072805 | 5415 | RETURN; |
| 79072805 LW |
5416 | } |
| 5417 | ||
| a0d0e21e | 5418 | PP(pp_reverse) |
| 79072805 | 5419 | { |
| 97aff369 | 5420 | dVAR; dSP; dMARK; |
| 79072805 | 5421 | |
| a0d0e21e | 5422 | if (GIMME == G_ARRAY) { |
| 484c818f VP |
5423 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
| 5424 | AV *av; | |
| 5425 | ||
| 5426 | /* See pp_sort() */ | |
| 5427 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
| 5428 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
| 5429 | av = MUTABLE_AV((*SP)); | |
| 5430 | /* In-place reversing only happens in void context for the array | |
| 5431 | * assignment. We don't need to push anything on the stack. */ | |
| 5432 | SP = MARK; | |
| 5433 | ||
| 5434 | if (SvMAGICAL(av)) { | |
| 5435 | I32 i, j; | |
| 5436 | register SV *tmp = sv_newmortal(); | |
| 5437 | /* For SvCANEXISTDELETE */ | |
| 5438 | HV *stash; | |
| 5439 | const MAGIC *mg; | |
| 5440 | bool can_preserve = SvCANEXISTDELETE(av); | |
| 5441 | ||
| 5442 | for (i = 0, j = av_len(av); i < j; ++i, --j) { | |
| 5443 | register SV *begin, *end; | |
| 5444 | ||
| 5445 | if (can_preserve) { | |
| 5446 | if (!av_exists(av, i)) { | |
| 5447 | if (av_exists(av, j)) { | |
| 5448 | register SV *sv = av_delete(av, j, 0); | |
| 5449 | begin = *av_fetch(av, i, TRUE); | |
| 5450 | sv_setsv_mg(begin, sv); | |
| 5451 | } | |
| 5452 | continue; | |
| 5453 | } | |
| 5454 | else if (!av_exists(av, j)) { | |
| 5455 | register SV *sv = av_delete(av, i, 0); | |
| 5456 | end = *av_fetch(av, j, TRUE); | |
| 5457 | sv_setsv_mg(end, sv); | |
| 5458 | continue; | |
| 5459 | } | |
| 5460 | } | |
| 5461 | ||
| 5462 | begin = *av_fetch(av, i, TRUE); | |
| 5463 | end = *av_fetch(av, j, TRUE); | |
| 5464 | sv_setsv(tmp, begin); | |
| 5465 | sv_setsv_mg(begin, end); | |
| 5466 | sv_setsv_mg(end, tmp); | |
| 5467 | } | |
| 5468 | } | |
| 5469 | else { | |
| 5470 | SV **begin = AvARRAY(av); | |
| 484c818f | 5471 | |
| 95a26d8e VP |
5472 | if (begin) { |
| 5473 | SV **end = begin + AvFILLp(av); | |
| 5474 | ||
| 5475 | while (begin < end) { | |
| 5476 | register SV * const tmp = *begin; | |
| 5477 | *begin++ = *end; | |
| 5478 | *end-- = tmp; | |
| 5479 | } | |
| 484c818f VP |
5480 | } |
| 5481 | } | |
| 5482 | } | |
| 5483 | else { | |
| 5484 | SV **oldsp = SP; | |
| 5485 | MARK++; | |
| 5486 | while (MARK < SP) { | |
| 5487 | register SV * const tmp = *MARK; | |
| 5488 | *MARK++ = *SP; | |
| 5489 | *SP-- = tmp; | |
| 5490 | } | |
| 5491 | /* safe as long as stack cannot get extended in the above */ | |
| 5492 | SP = oldsp; | |
| a0d0e21e | 5493 | } |
| 79072805 LW |
5494 | } |
| 5495 | else { | |
| a0d0e21e LW |
5496 | register char *up; |
| 5497 | register char *down; | |
| 5498 | register I32 tmp; | |
| 5499 | dTARGET; | |
| 5500 | STRLEN len; | |
| 79072805 | 5501 | |
| 7e2040f0 | 5502 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 5503 | if (SP - MARK > 1) |
| 3280af22 | 5504 | do_join(TARG, &PL_sv_no, MARK, SP); |
| 1e21d011 | 5505 | else { |
| 789bd863 | 5506 | sv_setsv(TARG, SP > MARK ? *SP : find_rundefsv()); |
| 1e21d011 B |
5507 | if (! SvOK(TARG) && ckWARN(WARN_UNINITIALIZED)) |
| 5508 | report_uninit(TARG); | |
| 5509 | } | |
| 5510 | ||
| a0d0e21e LW |
5511 | up = SvPV_force(TARG, len); |
| 5512 | if (len > 1) { | |
| 7e2040f0 | 5513 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
| dfe13c55 | 5514 | U8* s = (U8*)SvPVX(TARG); |
| 349d4f2f | 5515 | const U8* send = (U8*)(s + len); |
| a0ed51b3 | 5516 | while (s < send) { |
| d742c382 | 5517 | if (UTF8_IS_INVARIANT(*s)) { |
| a0ed51b3 LW |
5518 | s++; |
| 5519 | continue; | |
| 5520 | } | |
| 5521 | else { | |
| 9041c2e3 | 5522 | if (!utf8_to_uvchr(s, 0)) |
| a0dbb045 | 5523 | break; |
| dfe13c55 | 5524 | up = (char*)s; |
| a0ed51b3 | 5525 | s += UTF8SKIP(s); |
| dfe13c55 | 5526 | down = (char*)(s - 1); |
| a0dbb045 | 5527 | /* reverse this character */ |
| a0ed51b3 LW |
5528 | while (down > up) { |
| 5529 | tmp = *up; | |
| 5530 | *up++ = *down; | |
| eb160463 | 5531 | *down-- = (char)tmp; |
| a0ed51b3 LW |
5532 | } |
| 5533 | } | |
| 5534 | } | |
| 5535 | up = SvPVX(TARG); | |
| 5536 | } | |
| a0d0e21e LW |
5537 | down = SvPVX(TARG) + len - 1; |
| 5538 | while (down > up) { | |
| 5539 | tmp = *up; | |
| 5540 | *up++ = *down; | |
| eb160463 | 5541 | *down-- = (char)tmp; |
| a0d0e21e | 5542 | } |
| 3aa33fe5 | 5543 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 5544 | } |
| a0d0e21e LW |
5545 | SP = MARK + 1; |
| 5546 | SETTARG; | |
| 79072805 | 5547 | } |
| a0d0e21e | 5548 | RETURN; |
| 79072805 LW |
5549 | } |
| 5550 | ||
| a0d0e21e | 5551 | PP(pp_split) |
| 79072805 | 5552 | { |
| 27da23d5 | 5553 | dVAR; dSP; dTARG; |
| a0d0e21e | 5554 | AV *ary; |
| 467f0320 | 5555 | register IV limit = POPi; /* note, negative is forever */ |
| 1b6737cc | 5556 | SV * const sv = POPs; |
| a0d0e21e | 5557 | STRLEN len; |
| 727b7506 | 5558 | register const char *s = SvPV_const(sv, len); |
| 1b6737cc | 5559 | const bool do_utf8 = DO_UTF8(sv); |
| 727b7506 | 5560 | const char *strend = s + len; |
| 44a8e56a | 5561 | register PMOP *pm; |
| d9f97599 | 5562 | register REGEXP *rx; |
| a0d0e21e | 5563 | register SV *dstr; |
| 727b7506 | 5564 | register const char *m; |
| a0d0e21e | 5565 | I32 iters = 0; |
| bb7a0f54 | 5566 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (STRLEN)(strend - s); |
| 792b2c16 | 5567 | I32 maxiters = slen + 10; |
| c1a7495a | 5568 | I32 trailing_empty = 0; |
| 727b7506 | 5569 | const char *orig; |
| 1b6737cc | 5570 | const I32 origlimit = limit; |
| a0d0e21e LW |
5571 | I32 realarray = 0; |
| 5572 | I32 base; | |
| f54cb97a | 5573 | const I32 gimme = GIMME_V; |
| 941446f6 | 5574 | bool gimme_scalar; |
| f54cb97a | 5575 | const I32 oldsave = PL_savestack_ix; |
| 437d3b4e | 5576 | U32 make_mortal = SVs_TEMP; |
| 7fba1cd6 | 5577 | bool multiline = 0; |
| b37c2d43 | 5578 | MAGIC *mg = NULL; |
| 79072805 | 5579 | |
| 44a8e56a | 5580 | #ifdef DEBUGGING |
| 5581 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
| 5582 | #else | |
| 5583 | pm = (PMOP*)POPs; | |
| 5584 | #endif | |
| a0d0e21e | 5585 | if (!pm || !s) |
| 2269b42e | 5586 | DIE(aTHX_ "panic: pp_split"); |
| aaa362c4 | 5587 | rx = PM_GETRE(pm); |
| bbce6d69 | 5588 | |
| 07bc277f NC |
5589 | TAINT_IF((RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) && |
| 5590 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); | |
| bbce6d69 | 5591 | |
| a30b2f1f | 5592 | RX_MATCH_UTF8_set(rx, do_utf8); |
| d9f424b2 | 5593 | |
| 971a9dd3 | 5594 | #ifdef USE_ITHREADS |
| 20e98b0f | 5595 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
| 159b6efe | 5596 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
| 20e98b0f | 5597 | } |
| 971a9dd3 | 5598 | #else |
| 20e98b0f NC |
5599 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
| 5600 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
| 971a9dd3 | 5601 | } |
| 20e98b0f | 5602 | #endif |
| 79072805 | 5603 | else |
| 7d49f689 | 5604 | ary = NULL; |
| a0d0e21e LW |
5605 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
| 5606 | realarray = 1; | |
| 8ec5e241 | 5607 | PUTBACK; |
| a0d0e21e LW |
5608 | av_extend(ary,0); |
| 5609 | av_clear(ary); | |
| 8ec5e241 | 5610 | SPAGAIN; |
| ad64d0ec | 5611 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
| 8ec5e241 | 5612 | PUSHMARK(SP); |
| ad64d0ec | 5613 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
| 8ec5e241 NIS |
5614 | } |
| 5615 | else { | |
| 1c0b011c | 5616 | if (!AvREAL(ary)) { |
| 1b6737cc | 5617 | I32 i; |
| 1c0b011c | 5618 | AvREAL_on(ary); |
| abff13bb | 5619 | AvREIFY_off(ary); |
| 1c0b011c | 5620 | for (i = AvFILLp(ary); i >= 0; i--) |
| 3280af22 | 5621 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
| 1c0b011c NIS |
5622 | } |
| 5623 | /* temporarily switch stacks */ | |
| 8b7059b1 | 5624 | SAVESWITCHSTACK(PL_curstack, ary); |
| 8ec5e241 | 5625 | make_mortal = 0; |
| 1c0b011c | 5626 | } |
| 79072805 | 5627 | } |
| 3280af22 | 5628 | base = SP - PL_stack_base; |
| a0d0e21e | 5629 | orig = s; |
| 07bc277f | 5630 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
| 613f191e TS |
5631 | if (do_utf8) { |
| 5632 | while (*s == ' ' || is_utf8_space((U8*)s)) | |
| 5633 | s += UTF8SKIP(s); | |
| 5634 | } | |
| 07bc277f | 5635 | else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| bbce6d69 | 5636 | while (isSPACE_LC(*s)) |
| 5637 | s++; | |
| 5638 | } | |
| 5639 | else { | |
| 5640 | while (isSPACE(*s)) | |
| 5641 | s++; | |
| 5642 | } | |
| a0d0e21e | 5643 | } |
| 07bc277f | 5644 | if (RX_EXTFLAGS(rx) & PMf_MULTILINE) { |
| 7fba1cd6 | 5645 | multiline = 1; |
| c07a80fd | 5646 | } |
| 5647 | ||
| 941446f6 FC |
5648 | gimme_scalar = gimme == G_SCALAR && !ary; |
| 5649 | ||
| a0d0e21e LW |
5650 | if (!limit) |
| 5651 | limit = maxiters + 2; | |
| 07bc277f | 5652 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
| a0d0e21e | 5653 | while (--limit) { |
| bbce6d69 | 5654 | m = s; |
| 8727f688 YO |
5655 | /* this one uses 'm' and is a negative test */ |
| 5656 | if (do_utf8) { | |
| 613f191e TS |
5657 | while (m < strend && !( *m == ' ' || is_utf8_space((U8*)m) )) { |
| 5658 | const int t = UTF8SKIP(m); | |
| 5659 | /* is_utf8_space returns FALSE for malform utf8 */ | |
| 5660 | if (strend - m < t) | |
| 5661 | m = strend; | |
| 5662 | else | |
| 5663 | m += t; | |
| 5664 | } | |
| 07bc277f | 5665 | } else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| 8727f688 YO |
5666 | while (m < strend && !isSPACE_LC(*m)) |
| 5667 | ++m; | |
| 5668 | } else { | |
| 5669 | while (m < strend && !isSPACE(*m)) | |
| 5670 | ++m; | |
| 5671 | } | |
| a0d0e21e LW |
5672 | if (m >= strend) |
| 5673 | break; | |
| bbce6d69 | 5674 | |
| c1a7495a BB |
5675 | if (gimme_scalar) { |
| 5676 | iters++; | |
| 5677 | if (m-s == 0) | |
| 5678 | trailing_empty++; | |
| 5679 | else | |
| 5680 | trailing_empty = 0; | |
| 5681 | } else { | |
| 5682 | dstr = newSVpvn_flags(s, m-s, | |
| 5683 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5684 | XPUSHs(dstr); | |
| 5685 | } | |
| bbce6d69 | 5686 | |
| 613f191e TS |
5687 | /* skip the whitespace found last */ |
| 5688 | if (do_utf8) | |
| 5689 | s = m + UTF8SKIP(m); | |
| 5690 | else | |
| 5691 | s = m + 1; | |
| 5692 | ||
| 8727f688 YO |
5693 | /* this one uses 's' and is a positive test */ |
| 5694 | if (do_utf8) { | |
| 613f191e | 5695 | while (s < strend && ( *s == ' ' || is_utf8_space((U8*)s) )) |
| 8727f688 | 5696 | s += UTF8SKIP(s); |
| 07bc277f | 5697 | } else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| 8727f688 YO |
5698 | while (s < strend && isSPACE_LC(*s)) |
| 5699 | ++s; | |
| 5700 | } else { | |
| 5701 | while (s < strend && isSPACE(*s)) | |
| 5702 | ++s; | |
| 5703 | } | |
| 79072805 LW |
5704 | } |
| 5705 | } | |
| 07bc277f | 5706 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
| a0d0e21e | 5707 | while (--limit) { |
| a6e20a40 AL |
5708 | for (m = s; m < strend && *m != '\n'; m++) |
| 5709 | ; | |
| a0d0e21e LW |
5710 | m++; |
| 5711 | if (m >= strend) | |
| 5712 | break; | |
| c1a7495a BB |
5713 | |
| 5714 | if (gimme_scalar) { | |
| 5715 | iters++; | |
| 5716 | if (m-s == 0) | |
| 5717 | trailing_empty++; | |
| 5718 | else | |
| 5719 | trailing_empty = 0; | |
| 5720 | } else { | |
| 5721 | dstr = newSVpvn_flags(s, m-s, | |
| 5722 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5723 | XPUSHs(dstr); | |
| 5724 | } | |
| a0d0e21e LW |
5725 | s = m; |
| 5726 | } | |
| 5727 | } | |
| 07bc277f | 5728 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
| 640f820d AB |
5729 | /* |
| 5730 | Pre-extend the stack, either the number of bytes or | |
| 5731 | characters in the string or a limited amount, triggered by: | |
| 5732 | ||
| 5733 | my ($x, $y) = split //, $str; | |
| 5734 | or | |
| 5735 | split //, $str, $i; | |
| 5736 | */ | |
| c1a7495a BB |
5737 | if (!gimme_scalar) { |
| 5738 | const U32 items = limit - 1; | |
| 5739 | if (items < slen) | |
| 5740 | EXTEND(SP, items); | |
| 5741 | else | |
| 5742 | EXTEND(SP, slen); | |
| 5743 | } | |
| 640f820d | 5744 | |
| e9515b0f AB |
5745 | if (do_utf8) { |
| 5746 | while (--limit) { | |
| 5747 | /* keep track of how many bytes we skip over */ | |
| 5748 | m = s; | |
| 640f820d | 5749 | s += UTF8SKIP(s); |
| c1a7495a BB |
5750 | if (gimme_scalar) { |
| 5751 | iters++; | |
| 5752 | if (s-m == 0) | |
| 5753 | trailing_empty++; | |
| 5754 | else | |
| 5755 | trailing_empty = 0; | |
| 5756 | } else { | |
| 5757 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
| 640f820d | 5758 | |
| c1a7495a BB |
5759 | PUSHs(dstr); |
| 5760 | } | |
| 640f820d | 5761 | |
| e9515b0f AB |
5762 | if (s >= strend) |
| 5763 | break; | |
| 5764 | } | |
| 5765 | } else { | |
| 5766 | while (--limit) { | |
| c1a7495a BB |
5767 | if (gimme_scalar) { |
| 5768 | iters++; | |
| 5769 | } else { | |
| 5770 | dstr = newSVpvn(s, 1); | |
| e9515b0f | 5771 | |
| e9515b0f | 5772 | |
| c1a7495a BB |
5773 | if (make_mortal) |
| 5774 | sv_2mortal(dstr); | |
| 640f820d | 5775 | |
| c1a7495a BB |
5776 | PUSHs(dstr); |
| 5777 | } | |
| 5778 | ||
| 5779 | s++; | |
| e9515b0f AB |
5780 | |
| 5781 | if (s >= strend) | |
| 5782 | break; | |
| 5783 | } | |
| 640f820d AB |
5784 | } |
| 5785 | } | |
| 3c8556c3 | 5786 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
| 07bc277f NC |
5787 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
| 5788 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
| 5789 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
| 5790 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
| f9f4320a | 5791 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
| cf93c79d | 5792 | |
| 07bc277f | 5793 | len = RX_MINLENRET(rx); |
| 3c8556c3 | 5794 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
| 1b6737cc | 5795 | const char c = *SvPV_nolen_const(csv); |
| a0d0e21e | 5796 | while (--limit) { |
| a6e20a40 AL |
5797 | for (m = s; m < strend && *m != c; m++) |
| 5798 | ; | |
| a0d0e21e LW |
5799 | if (m >= strend) |
| 5800 | break; | |
| c1a7495a BB |
5801 | if (gimme_scalar) { |
| 5802 | iters++; | |
| 5803 | if (m-s == 0) | |
| 5804 | trailing_empty++; | |
| 5805 | else | |
| 5806 | trailing_empty = 0; | |
| 5807 | } else { | |
| 5808 | dstr = newSVpvn_flags(s, m-s, | |
| 5809 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5810 | XPUSHs(dstr); | |
| 5811 | } | |
| 93f04dac JH |
5812 | /* The rx->minlen is in characters but we want to step |
| 5813 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
5814 | if (do_utf8) |
| 5815 | s = (char*)utf8_hop((U8*)m, len); | |
| 5816 | else | |
| 5817 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e LW |
5818 | } |
| 5819 | } | |
| 5820 | else { | |
| a0d0e21e | 5821 | while (s < strend && --limit && |
| f722798b | 5822 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
| 7fba1cd6 | 5823 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
| a0d0e21e | 5824 | { |
| c1a7495a BB |
5825 | if (gimme_scalar) { |
| 5826 | iters++; | |
| 5827 | if (m-s == 0) | |
| 5828 | trailing_empty++; | |
| 5829 | else | |
| 5830 | trailing_empty = 0; | |
| 5831 | } else { | |
| 5832 | dstr = newSVpvn_flags(s, m-s, | |
| 5833 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5834 | XPUSHs(dstr); | |
| 5835 | } | |
| 93f04dac JH |
5836 | /* The rx->minlen is in characters but we want to step |
| 5837 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
5838 | if (do_utf8) |
| 5839 | s = (char*)utf8_hop((U8*)m, len); | |
| 5840 | else | |
| 5841 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e | 5842 | } |
| 463ee0b2 | 5843 | } |
| 463ee0b2 | 5844 | } |
| a0d0e21e | 5845 | else { |
| 07bc277f | 5846 | maxiters += slen * RX_NPARENS(rx); |
| 080c2dec | 5847 | while (s < strend && --limit) |
| bbce6d69 | 5848 | { |
| 1b6737cc | 5849 | I32 rex_return; |
| 080c2dec | 5850 | PUTBACK; |
| f9f4320a | 5851 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1 , |
| 727b7506 | 5852 | sv, NULL, 0); |
| 080c2dec | 5853 | SPAGAIN; |
| 1b6737cc | 5854 | if (rex_return == 0) |
| 080c2dec | 5855 | break; |
| d9f97599 | 5856 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
| 07bc277f | 5857 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
| a0d0e21e LW |
5858 | m = s; |
| 5859 | s = orig; | |
| 07bc277f | 5860 | orig = RX_SUBBEG(rx); |
| a0d0e21e LW |
5861 | s = orig + (m - s); |
| 5862 | strend = s + (strend - m); | |
| 5863 | } | |
| 07bc277f | 5864 | m = RX_OFFS(rx)[0].start + orig; |
| c1a7495a BB |
5865 | |
| 5866 | if (gimme_scalar) { | |
| 5867 | iters++; | |
| 5868 | if (m-s == 0) | |
| 5869 | trailing_empty++; | |
| 5870 | else | |
| 5871 | trailing_empty = 0; | |
| 5872 | } else { | |
| 5873 | dstr = newSVpvn_flags(s, m-s, | |
| 5874 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5875 | XPUSHs(dstr); | |
| 5876 | } | |
| 07bc277f | 5877 | if (RX_NPARENS(rx)) { |
| 1b6737cc | 5878 | I32 i; |
| 07bc277f NC |
5879 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
| 5880 | s = RX_OFFS(rx)[i].start + orig; | |
| 5881 | m = RX_OFFS(rx)[i].end + orig; | |
| 6de67870 JP |
5882 | |
| 5883 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
| 5884 | parens that didn't match -- they should be set to | |
| 5885 | undef, not the empty string */ | |
| c1a7495a BB |
5886 | if (gimme_scalar) { |
| 5887 | iters++; | |
| 5888 | if (m-s == 0) | |
| 5889 | trailing_empty++; | |
| 5890 | else | |
| 5891 | trailing_empty = 0; | |
| 5892 | } else { | |
| 5893 | if (m >= orig && s >= orig) { | |
| 5894 | dstr = newSVpvn_flags(s, m-s, | |
| 5895 | (do_utf8 ? SVf_UTF8 : 0) | |
| 5896 | | make_mortal); | |
| 5897 | } | |
| 5898 | else | |
| 5899 | dstr = &PL_sv_undef; /* undef, not "" */ | |
| 5900 | XPUSHs(dstr); | |
| 748a9306 | 5901 | } |
| c1a7495a | 5902 | |
| a0d0e21e LW |
5903 | } |
| 5904 | } | |
| 07bc277f | 5905 | s = RX_OFFS(rx)[0].end + orig; |
| a0d0e21e | 5906 | } |
| 79072805 | 5907 | } |
| 8ec5e241 | 5908 | |
| c1a7495a BB |
5909 | if (!gimme_scalar) { |
| 5910 | iters = (SP - PL_stack_base) - base; | |
| 5911 | } | |
| a0d0e21e | 5912 | if (iters > maxiters) |
| cea2e8a9 | 5913 | DIE(aTHX_ "Split loop"); |
| 8ec5e241 | 5914 | |
| a0d0e21e LW |
5915 | /* keep field after final delim? */ |
| 5916 | if (s < strend || (iters && origlimit)) { | |
| c1a7495a BB |
5917 | if (!gimme_scalar) { |
| 5918 | const STRLEN l = strend - s; | |
| 5919 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5920 | XPUSHs(dstr); | |
| 5921 | } | |
| a0d0e21e | 5922 | iters++; |
| 79072805 | 5923 | } |
| a0d0e21e | 5924 | else if (!origlimit) { |
| c1a7495a BB |
5925 | if (gimme_scalar) { |
| 5926 | iters -= trailing_empty; | |
| 5927 | } else { | |
| 5928 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
| 5929 | if (TOPs && !make_mortal) | |
| 5930 | sv_2mortal(TOPs); | |
| 5931 | *SP-- = &PL_sv_undef; | |
| 5932 | iters--; | |
| 5933 | } | |
| 89900bd3 | 5934 | } |
| a0d0e21e | 5935 | } |
| 8ec5e241 | 5936 | |
| 8b7059b1 DM |
5937 | PUTBACK; |
| 5938 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
| 5939 | SPAGAIN; | |
| a0d0e21e | 5940 | if (realarray) { |
| 8ec5e241 | 5941 | if (!mg) { |
| 1c0b011c NIS |
5942 | if (SvSMAGICAL(ary)) { |
| 5943 | PUTBACK; | |
| ad64d0ec | 5944 | mg_set(MUTABLE_SV(ary)); |
| 1c0b011c NIS |
5945 | SPAGAIN; |
| 5946 | } | |
| 5947 | if (gimme == G_ARRAY) { | |
| 5948 | EXTEND(SP, iters); | |
| 5949 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
| 5950 | SP += iters; | |
| 5951 | RETURN; | |
| 5952 | } | |
| 8ec5e241 | 5953 | } |
| 1c0b011c | 5954 | else { |
| fb73857a | 5955 | PUTBACK; |
| d343c3ef | 5956 | ENTER_with_name("call_PUSH"); |
| 864dbfa3 | 5957 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| d343c3ef | 5958 | LEAVE_with_name("call_PUSH"); |
| fb73857a | 5959 | SPAGAIN; |
| 8ec5e241 | 5960 | if (gimme == G_ARRAY) { |
| 1b6737cc | 5961 | I32 i; |
| 8ec5e241 NIS |
5962 | /* EXTEND should not be needed - we just popped them */ |
| 5963 | EXTEND(SP, iters); | |
| 5964 | for (i=0; i < iters; i++) { | |
| 5965 | SV **svp = av_fetch(ary, i, FALSE); | |
| 3280af22 | 5966 | PUSHs((svp) ? *svp : &PL_sv_undef); |
| 8ec5e241 | 5967 | } |
| 1c0b011c NIS |
5968 | RETURN; |
| 5969 | } | |
| a0d0e21e LW |
5970 | } |
| 5971 | } | |
| 5972 | else { | |
| 5973 | if (gimme == G_ARRAY) | |
| 5974 | RETURN; | |
| 5975 | } | |
| 7f18b612 YST |
5976 | |
| 5977 | GETTARGET; | |
| 5978 | PUSHi(iters); | |
| 5979 | RETURN; | |
| 79072805 | 5980 | } |
| 85e6fe83 | 5981 | |
| c5917253 NC |
5982 | PP(pp_once) |
| 5983 | { | |
| 5984 | dSP; | |
| 5985 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
| 5986 | ||
| 5987 | if (SvPADSTALE(sv)) { | |
| 5988 | /* First time. */ | |
| 5989 | SvPADSTALE_off(sv); | |
| 5990 | RETURNOP(cLOGOP->op_other); | |
| 5991 | } | |
| 5992 | RETURNOP(cLOGOP->op_next); | |
| 5993 | } | |
| 5994 | ||
| c0329465 MB |
5995 | PP(pp_lock) |
| 5996 | { | |
| 97aff369 | 5997 | dVAR; |
| 39644a26 | 5998 | dSP; |
| c0329465 | 5999 | dTOPss; |
| e55aaa0e | 6000 | SV *retsv = sv; |
| 076a2a80 | 6001 | assert(SvTYPE(retsv) != SVt_PVCV); |
| 68795e93 | 6002 | SvLOCK(sv); |
| 076a2a80 | 6003 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV) { |
| e55aaa0e MB |
6004 | retsv = refto(retsv); |
| 6005 | } | |
| 6006 | SETs(retsv); | |
| c0329465 MB |
6007 | RETURN; |
| 6008 | } | |
| a863c7d1 | 6009 | |
| 65bca31a NC |
6010 | |
| 6011 | PP(unimplemented_op) | |
| 6012 | { | |
| 97aff369 | 6013 | dVAR; |
| 65bca31a NC |
6014 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", OP_NAME(PL_op), |
| 6015 | PL_op->op_type); | |
| 6016 | } | |
| 6017 | ||
| 867fa1e2 YO |
6018 | PP(pp_boolkeys) |
| 6019 | { | |
| 6020 | dVAR; | |
| 6021 | dSP; | |
| 6022 | HV * const hv = (HV*)POPs; | |
| 6023 | ||
| 6024 | if (SvRMAGICAL(hv)) { | |
| 6025 | MAGIC * const mg = mg_find((SV*)hv, PERL_MAGIC_tied); | |
| 6026 | if (mg) { | |
| 6027 | XPUSHs(magic_scalarpack(hv, mg)); | |
| 6028 | RETURN; | |
| 6029 | } | |
| 6030 | } | |
| 6031 | ||
| 6032 | XPUSHs(boolSV(HvKEYS(hv) != 0)); | |
| 6033 | RETURN; | |
| 6034 | } | |
| 6035 | ||
| e609e586 NC |
6036 | /* |
| 6037 | * Local variables: | |
| 6038 | * c-indentation-style: bsd | |
| 6039 | * c-basic-offset: 4 | |
| 6040 | * indent-tabs-mode: t | |
| 6041 | * End: | |
| 6042 | * | |
| 37442d52 RGS |
6043 | * ex: set ts=8 sts=4 sw=4 noet: |
| 6044 | */ |