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 | |
| ed6116ce | 142 | if (SvROK(sv)) { |
| a0d0e21e | 143 | wasref: |
| f5284f61 IZ |
144 | tryAMAGICunDEREF(to_gv); |
| 145 | ||
| ed6116ce | 146 | sv = SvRV(sv); |
| b1dadf13 | 147 | if (SvTYPE(sv) == SVt_PVIO) { |
| 159b6efe | 148 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
| b1dadf13 | 149 | gv_init(gv, 0, "", 0, 0); |
| a45c7426 | 150 | GvIOp(gv) = MUTABLE_IO(sv); |
| b37c2d43 | 151 | SvREFCNT_inc_void_NN(sv); |
| ad64d0ec | 152 | sv = MUTABLE_SV(gv); |
| ef54e1a4 | 153 | } |
| 6e592b3a | 154 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 155 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
156 | } |
| 157 | else { | |
| 6e592b3a | 158 | if (!isGV_with_GP(sv)) { |
| a0d0e21e LW |
159 | if (SvGMAGICAL(sv)) { |
| 160 | mg_get(sv); | |
| 161 | if (SvROK(sv)) | |
| 162 | goto wasref; | |
| 163 | } | |
| afd1915d | 164 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 165 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 166 | * NI-S 1999/05/07 |
| b13b2135 | 167 | */ |
| ac53db4c | 168 | if (SvREADONLY(sv)) |
| f1f66076 | 169 | Perl_croak(aTHX_ "%s", PL_no_modify); |
| 1d8d4d2a | 170 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
171 | GV *gv; |
| 172 | if (cUNOP->op_targ) { | |
| 173 | STRLEN len; | |
| 0bd48802 AL |
174 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 175 | const char * const name = SvPV(namesv, len); | |
| 159b6efe | 176 | gv = MUTABLE_GV(newSV(0)); |
| 2c8ac474 GS |
177 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 178 | } | |
| 179 | else { | |
| 0bd48802 | 180 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 181 | gv = newGVgen(name); |
| 1d8d4d2a | 182 | } |
| 43230e26 | 183 | prepare_SV_for_RV(sv); |
| ad64d0ec | 184 | SvRV_set(sv, MUTABLE_SV(gv)); |
| 853846ea | 185 | SvROK_on(sv); |
| 1d8d4d2a | 186 | SvSETMAGIC(sv); |
| 853846ea | 187 | goto wasref; |
| 2c8ac474 | 188 | } |
| 533c011a NIS |
189 | if (PL_op->op_flags & OPf_REF || |
| 190 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 191 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 192 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 193 | report_uninit(sv); |
| a0d0e21e LW |
194 | RETSETUNDEF; |
| 195 | } | |
| 35cd451c GS |
196 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 197 | !(PL_op->op_flags & OPf_MOD)) | |
| 198 | { | |
| ad64d0ec | 199 | SV * const temp = MUTABLE_SV(gv_fetchsv(sv, 0, SVt_PVGV)); |
| 7a5fd60d NC |
200 | if (!temp |
| 201 | && (!is_gv_magical_sv(sv,0) | |
| ad64d0ec NC |
202 | || !(sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, |
| 203 | SVt_PVGV))))) { | |
| 35cd451c | 204 | RETSETUNDEF; |
| c9d5ac95 | 205 | } |
| 7a5fd60d | 206 | sv = temp; |
| 35cd451c GS |
207 | } |
| 208 | else { | |
| 209 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 10b53e54 | 210 | DIE(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), "a symbol"); |
| e26df76a NC |
211 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 212 | == OPpDONT_INIT_GV) { | |
| 213 | /* We are the target of a coderef assignment. Return | |
| 214 | the scalar unchanged, and let pp_sasssign deal with | |
| 215 | things. */ | |
| 216 | RETURN; | |
| 217 | } | |
| ad64d0ec | 218 | sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, SVt_PVGV)); |
| 35cd451c | 219 | } |
| 93a17b20 | 220 | } |
| 79072805 | 221 | } |
| 533c011a | 222 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 159b6efe | 223 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); |
| 79072805 LW |
224 | SETs(sv); |
| 225 | RETURN; | |
| 226 | } | |
| 227 | ||
| dc3c76f8 NC |
228 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 229 | GV * | |
| fe9845cc RB |
230 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 231 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
232 | { |
| 233 | dVAR; | |
| 234 | GV *gv; | |
| 235 | ||
| 7918f24d NC |
236 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 237 | ||
| dc3c76f8 NC |
238 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 239 | if (SvOK(sv)) | |
| 10b53e54 | 240 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
| dc3c76f8 NC |
241 | else |
| 242 | Perl_die(aTHX_ PL_no_usym, what); | |
| 243 | } | |
| 244 | if (!SvOK(sv)) { | |
| 245 | if (PL_op->op_flags & OPf_REF) | |
| 246 | Perl_die(aTHX_ PL_no_usym, what); | |
| 247 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 248 | report_uninit(sv); | |
| 249 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 250 | (*spp)--; | |
| 251 | return NULL; | |
| 252 | } | |
| 253 | **spp = &PL_sv_undef; | |
| 254 | return NULL; | |
| 255 | } | |
| 256 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 257 | !(PL_op->op_flags & OPf_MOD)) | |
| 258 | { | |
| 81e3fc25 | 259 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
260 | if (!gv |
| 261 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 262 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
263 | { |
| 264 | **spp = &PL_sv_undef; | |
| 265 | return NULL; | |
| 266 | } | |
| 267 | } | |
| 268 | else { | |
| 81e3fc25 | 269 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
270 | } |
| 271 | return gv; | |
| 272 | } | |
| 273 | ||
| 79072805 LW |
274 | PP(pp_rv2sv) |
| 275 | { | |
| 97aff369 | 276 | dVAR; dSP; dTOPss; |
| c445ea15 | 277 | GV *gv = NULL; |
| 79072805 | 278 | |
| ed6116ce | 279 | if (SvROK(sv)) { |
| a0d0e21e | 280 | wasref: |
| f5284f61 IZ |
281 | tryAMAGICunDEREF(to_sv); |
| 282 | ||
| ed6116ce | 283 | sv = SvRV(sv); |
| 79072805 LW |
284 | switch (SvTYPE(sv)) { |
| 285 | case SVt_PVAV: | |
| 286 | case SVt_PVHV: | |
| 287 | case SVt_PVCV: | |
| cbae9b9f YST |
288 | case SVt_PVFM: |
| 289 | case SVt_PVIO: | |
| cea2e8a9 | 290 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 291 | default: NOOP; |
| 79072805 LW |
292 | } |
| 293 | } | |
| 294 | else { | |
| 159b6efe | 295 | gv = MUTABLE_GV(sv); |
| 748a9306 | 296 | |
| 6e592b3a | 297 | if (!isGV_with_GP(gv)) { |
| a0d0e21e LW |
298 | if (SvGMAGICAL(sv)) { |
| 299 | mg_get(sv); | |
| 300 | if (SvROK(sv)) | |
| 301 | goto wasref; | |
| 302 | } | |
| dc3c76f8 NC |
303 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 304 | if (!gv) | |
| 305 | RETURN; | |
| 463ee0b2 | 306 | } |
| 29c711a3 | 307 | sv = GvSVn(gv); |
| a0d0e21e | 308 | } |
| 533c011a | 309 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
310 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 311 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 159b6efe | 312 | sv = save_scalar(MUTABLE_GV(TOPs)); |
| 82d03984 RGS |
313 | else if (gv) |
| 314 | sv = save_scalar(gv); | |
| 315 | else | |
| f1f66076 | 316 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
| 82d03984 | 317 | } |
| 533c011a NIS |
318 | else if (PL_op->op_private & OPpDEREF) |
| 319 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 320 | } |
| a0d0e21e | 321 | SETs(sv); |
| 79072805 LW |
322 | RETURN; |
| 323 | } | |
| 324 | ||
| 325 | PP(pp_av2arylen) | |
| 326 | { | |
| 97aff369 | 327 | dVAR; dSP; |
| 502c6561 | 328 | AV * const av = MUTABLE_AV(TOPs); |
| 02d85cc3 EB |
329 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 330 | if (lvalue) { | |
| 331 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| 332 | if (!*sv) { | |
| 333 | *sv = newSV_type(SVt_PVMG); | |
| 334 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
| 335 | } | |
| 336 | SETs(*sv); | |
| 337 | } else { | |
| 338 | SETs(sv_2mortal(newSViv( | |
| 339 | AvFILL(MUTABLE_AV(av)) + CopARYBASE_get(PL_curcop) | |
| 340 | ))); | |
| 79072805 | 341 | } |
| 79072805 LW |
342 | RETURN; |
| 343 | } | |
| 344 | ||
| a0d0e21e LW |
345 | PP(pp_pos) |
| 346 | { | |
| 97aff369 | 347 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 348 | |
| 78f9721b | 349 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 350 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 351 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 352 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 353 | } |
| 354 | ||
| 355 | LvTYPE(TARG) = '.'; | |
| 6ff81951 | 356 | if (LvTARG(TARG) != sv) { |
| cb39f75f | 357 | SvREFCNT_dec(LvTARG(TARG)); |
| b37c2d43 | 358 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 359 | } |
| a0d0e21e LW |
360 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 361 | RETURN; | |
| 362 | } | |
| 363 | else { | |
| a0d0e21e | 364 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 365 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 366 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 367 | I32 i = mg->mg_len; |
| 7e2040f0 | 368 | if (DO_UTF8(sv)) |
| a0ed51b3 | 369 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 370 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
371 | RETURN; |
| 372 | } | |
| 373 | } | |
| 374 | RETPUSHUNDEF; | |
| 375 | } | |
| 376 | } | |
| 377 | ||
| 79072805 LW |
378 | PP(pp_rv2cv) |
| 379 | { | |
| 97aff369 | 380 | dVAR; dSP; |
| 79072805 | 381 | GV *gv; |
| 1eced8f8 | 382 | HV *stash_unused; |
| c445ea15 AL |
383 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 384 | ? 0 | |
| 385 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 386 | ? GV_ADD|GV_NOEXPAND | |
| 387 | : GV_ADD; | |
| 4633a7c4 LW |
388 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 389 | /* (But not in defined().) */ | |
| e26df76a | 390 | |
| 1eced8f8 | 391 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
392 | if (cv) { |
| 393 | if (CvCLONE(cv)) | |
| ad64d0ec | 394 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| d32f2495 SC |
395 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 396 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 397 | cv = GvCV(gv); | |
| 398 | if (!CvLVALUE(cv)) | |
| 399 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 400 | } | |
| 07055b4c | 401 | } |
| e26df76a | 402 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 403 | cv = MUTABLE_CV(gv); |
| e26df76a | 404 | } |
| 07055b4c | 405 | else |
| ea726b52 | 406 | cv = MUTABLE_CV(&PL_sv_undef); |
| ad64d0ec | 407 | SETs(MUTABLE_SV(cv)); |
| 79072805 LW |
408 | RETURN; |
| 409 | } | |
| 410 | ||
| c07a80fd | 411 | PP(pp_prototype) |
| 412 | { | |
| 97aff369 | 413 | dVAR; dSP; |
| c07a80fd | 414 | CV *cv; |
| 415 | HV *stash; | |
| 416 | GV *gv; | |
| fabdb6c0 | 417 | SV *ret = &PL_sv_undef; |
| c07a80fd | 418 | |
| b6c543e3 | 419 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 420 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 421 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 422 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
423 | if (code < 0) { /* Overridable. */ |
| 424 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 425 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
426 | I32 oa; |
| 427 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 428 | ||
| bdf1bb36 | 429 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 430 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 431 | goto set; |
| d116c547 | 432 | if (code == -KEY_mkdir) { |
| 84bafc02 | 433 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
434 | goto set; |
| 435 | } | |
| 7c8178a1 RGS |
436 | if (code == -KEY_keys || code == -KEY_values || code == -KEY_each) { |
| 437 | ret = newSVpvs_flags("\\[@%]", SVs_TEMP); | |
| 438 | goto set; | |
| 439 | } | |
| e3f73d4e RGS |
440 | if (code == -KEY_readpipe) { |
| 441 | s = "CORE::backtick"; | |
| 442 | } | |
| b6c543e3 | 443 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
444 | if (strEQ(s + 6, PL_op_name[i]) |
| 445 | || strEQ(s + 6, PL_op_desc[i])) | |
| 446 | { | |
| b6c543e3 | 447 | goto found; |
| 22c35a8c | 448 | } |
| b6c543e3 IZ |
449 | i++; |
| 450 | } | |
| 451 | goto nonesuch; /* Should not happen... */ | |
| 452 | found: | |
| 59b085e1 | 453 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 454 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 455 | while (oa) { |
| 59b085e1 | 456 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
457 | seen_question = 1; |
| 458 | str[n++] = ';'; | |
| ef54e1a4 | 459 | } |
| b13b2135 | 460 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
461 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 462 | /* But globs are already references (kinda) */ | |
| 463 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 464 | ) { | |
| b6c543e3 IZ |
465 | str[n++] = '\\'; |
| 466 | } | |
| b6c543e3 IZ |
467 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 468 | oa = oa >> 4; | |
| 469 | } | |
| 59b085e1 RGS |
470 | if (defgv && str[n - 1] == '$') |
| 471 | str[n - 1] = '_'; | |
| b6c543e3 | 472 | str[n++] = '\0'; |
| 59cd0e26 | 473 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
474 | } |
| 475 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
476 | goto set; |
| 477 | else { /* None such */ | |
| 478 | nonesuch: | |
| d470f89e | 479 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
480 | } |
| 481 | } | |
| 482 | } | |
| f2c0649b | 483 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 484 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 485 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 486 | set: |
| c07a80fd | 487 | SETs(ret); |
| 488 | RETURN; | |
| 489 | } | |
| 490 | ||
| a0d0e21e LW |
491 | PP(pp_anoncode) |
| 492 | { | |
| 97aff369 | 493 | dVAR; dSP; |
| ea726b52 | 494 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 495 | if (CvCLONE(cv)) |
| ad64d0ec | 496 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 5f05dabc | 497 | EXTEND(SP,1); |
| ad64d0ec | 498 | PUSHs(MUTABLE_SV(cv)); |
| a0d0e21e LW |
499 | RETURN; |
| 500 | } | |
| 501 | ||
| 502 | PP(pp_srefgen) | |
| 79072805 | 503 | { |
| 97aff369 | 504 | dVAR; dSP; |
| 71be2cbc | 505 | *SP = refto(*SP); |
| 79072805 | 506 | RETURN; |
| 8ec5e241 | 507 | } |
| a0d0e21e LW |
508 | |
| 509 | PP(pp_refgen) | |
| 510 | { | |
| 97aff369 | 511 | dVAR; dSP; dMARK; |
| a0d0e21e | 512 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
513 | if (++MARK <= SP) |
| 514 | *MARK = *SP; | |
| 515 | else | |
| 3280af22 | 516 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
517 | *MARK = refto(*MARK); |
| 518 | SP = MARK; | |
| 519 | RETURN; | |
| a0d0e21e | 520 | } |
| bbce6d69 | 521 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 522 | while (++MARK <= SP) |
| 523 | *MARK = refto(*MARK); | |
| a0d0e21e | 524 | RETURN; |
| 79072805 LW |
525 | } |
| 526 | ||
| 76e3520e | 527 | STATIC SV* |
| cea2e8a9 | 528 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 529 | { |
| 97aff369 | 530 | dVAR; |
| 71be2cbc | 531 | SV* rv; |
| 532 | ||
| 7918f24d NC |
533 | PERL_ARGS_ASSERT_REFTO; |
| 534 | ||
| 71be2cbc | 535 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 536 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 537 | vivify_defelem(sv); |
| 538 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 539 | sv = &PL_sv_undef; |
| 0dd88869 | 540 | else |
| b37c2d43 | 541 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 542 | } |
| d8b46c1b | 543 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
544 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 545 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 546 | SvTEMP_off(sv); |
| b37c2d43 | 547 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 548 | } |
| f2933f5f DM |
549 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 550 | sv = newSVsv(sv); | |
| 71be2cbc | 551 | else { |
| 552 | SvTEMP_off(sv); | |
| b37c2d43 | 553 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 554 | } |
| 555 | rv = sv_newmortal(); | |
| 4df7f6af | 556 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 557 | SvRV_set(rv, sv); |
| 71be2cbc | 558 | SvROK_on(rv); |
| 559 | return rv; | |
| 560 | } | |
| 561 | ||
| 79072805 LW |
562 | PP(pp_ref) |
| 563 | { | |
| 97aff369 | 564 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 565 | const char *pv; |
| 1b6737cc | 566 | SV * const sv = POPs; |
| f12c7020 | 567 | |
| 5b295bef RD |
568 | if (sv) |
| 569 | SvGETMAGIC(sv); | |
| f12c7020 | 570 | |
| a0d0e21e | 571 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 572 | RETPUSHNO; |
| 79072805 | 573 | |
| 1b6737cc | 574 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 575 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
576 | RETURN; |
| 577 | } | |
| 578 | ||
| 579 | PP(pp_bless) | |
| 580 | { | |
| 97aff369 | 581 | dVAR; dSP; |
| 463ee0b2 | 582 | HV *stash; |
| 79072805 | 583 | |
| 463ee0b2 | 584 | if (MAXARG == 1) |
| 11faa288 | 585 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 586 | else { |
| 1b6737cc | 587 | SV * const ssv = POPs; |
| 7b8d334a | 588 | STRLEN len; |
| e1ec3a88 | 589 | const char *ptr; |
| 81689caa | 590 | |
| 016a42f3 | 591 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 592 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 593 | ptr = SvPV_const(ssv,len); |
| a2a5de95 NC |
594 | if (len == 0) |
| 595 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
| 596 | "Explicit blessing to '' (assuming package main)"); | |
| da51bb9b | 597 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 598 | } |
| a0d0e21e | 599 | |
| 5d3fdfeb | 600 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
601 | RETURN; |
| 602 | } | |
| 603 | ||
| fb73857a | 604 | PP(pp_gelem) |
| 605 | { | |
| 97aff369 | 606 | dVAR; dSP; |
| b13b2135 | 607 | |
| 1b6737cc AL |
608 | SV *sv = POPs; |
| 609 | const char * const elem = SvPV_nolen_const(sv); | |
| 159b6efe | 610 | GV * const gv = MUTABLE_GV(POPs); |
| c445ea15 | 611 | SV * tmpRef = NULL; |
| 1b6737cc | 612 | |
| c445ea15 | 613 | sv = NULL; |
| c4ba80c3 NC |
614 | if (elem) { |
| 615 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 616 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
617 | switch (*elem) { |
| 618 | case 'A': | |
| 1b6737cc | 619 | if (strEQ(second_letter, "RRAY")) |
| ad64d0ec | 620 | tmpRef = MUTABLE_SV(GvAV(gv)); |
| c4ba80c3 NC |
621 | break; |
| 622 | case 'C': | |
| 1b6737cc | 623 | if (strEQ(second_letter, "ODE")) |
| ad64d0ec | 624 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
| c4ba80c3 NC |
625 | break; |
| 626 | case 'F': | |
| 1b6737cc | 627 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
628 | /* finally deprecated in 5.8.0 */ |
| 629 | deprecate("*glob{FILEHANDLE}"); | |
| ad64d0ec | 630 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
631 | } |
| 632 | else | |
| 1b6737cc | 633 | if (strEQ(second_letter, "ORMAT")) |
| ad64d0ec | 634 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
| c4ba80c3 NC |
635 | break; |
| 636 | case 'G': | |
| 1b6737cc | 637 | if (strEQ(second_letter, "LOB")) |
| ad64d0ec | 638 | tmpRef = MUTABLE_SV(gv); |
| c4ba80c3 NC |
639 | break; |
| 640 | case 'H': | |
| 1b6737cc | 641 | if (strEQ(second_letter, "ASH")) |
| ad64d0ec | 642 | tmpRef = MUTABLE_SV(GvHV(gv)); |
| c4ba80c3 NC |
643 | break; |
| 644 | case 'I': | |
| 1b6737cc | 645 | if (*second_letter == 'O' && !elem[2]) |
| ad64d0ec | 646 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
647 | break; |
| 648 | case 'N': | |
| 1b6737cc | 649 | if (strEQ(second_letter, "AME")) |
| a663657d | 650 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
651 | break; |
| 652 | case 'P': | |
| 1b6737cc | 653 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
654 | const HV * const stash = GvSTASH(gv); |
| 655 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 656 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
657 | } |
| 658 | break; | |
| 659 | case 'S': | |
| 1b6737cc | 660 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 661 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 662 | break; |
| 39b99f21 | 663 | } |
| fb73857a | 664 | } |
| 76e3520e GS |
665 | if (tmpRef) |
| 666 | sv = newRV(tmpRef); | |
| fb73857a | 667 | if (sv) |
| 668 | sv_2mortal(sv); | |
| 669 | else | |
| 3280af22 | 670 | sv = &PL_sv_undef; |
| fb73857a | 671 | XPUSHs(sv); |
| 672 | RETURN; | |
| 673 | } | |
| 674 | ||
| a0d0e21e | 675 | /* Pattern matching */ |
| 79072805 | 676 | |
| a0d0e21e | 677 | PP(pp_study) |
| 79072805 | 678 | { |
| 97aff369 | 679 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
680 | register unsigned char *s; |
| 681 | register I32 pos; | |
| 682 | register I32 ch; | |
| 683 | register I32 *sfirst; | |
| 684 | register I32 *snext; | |
| a0d0e21e LW |
685 | STRLEN len; |
| 686 | ||
| 3280af22 | 687 | if (sv == PL_lastscream) { |
| 1e422769 | 688 | if (SvSCREAM(sv)) |
| 689 | RETPUSHYES; | |
| 690 | } | |
| a4f4e906 NC |
691 | s = (unsigned char*)(SvPV(sv, len)); |
| 692 | pos = len; | |
| c9b9f909 | 693 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
694 | /* No point in studying a zero length string, and not safe to study |
| 695 | anything that doesn't appear to be a simple scalar (and hence might | |
| 696 | change between now and when the regexp engine runs without our set | |
| bd473224 | 697 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
698 | stringification. */ |
| 699 | RETPUSHNO; | |
| 700 | } | |
| 701 | ||
| 702 | if (PL_lastscream) { | |
| 703 | SvSCREAM_off(PL_lastscream); | |
| 704 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 705 | } |
| b37c2d43 | 706 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 707 | |
| 708 | s = (unsigned char*)(SvPV(sv, len)); | |
| 709 | pos = len; | |
| 710 | if (pos <= 0) | |
| 711 | RETPUSHNO; | |
| 3280af22 NIS |
712 | if (pos > PL_maxscream) { |
| 713 | if (PL_maxscream < 0) { | |
| 714 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
715 | Newx(PL_screamfirst, 256, I32); |
| 716 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
717 | } |
| 718 | else { | |
| 3280af22 NIS |
719 | PL_maxscream = pos + pos / 4; |
| 720 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 721 | } |
| 79072805 | 722 | } |
| a0d0e21e | 723 | |
| 3280af22 NIS |
724 | sfirst = PL_screamfirst; |
| 725 | snext = PL_screamnext; | |
| a0d0e21e LW |
726 | |
| 727 | if (!sfirst || !snext) | |
| cea2e8a9 | 728 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
729 | |
| 730 | for (ch = 256; ch; --ch) | |
| 731 | *sfirst++ = -1; | |
| 732 | sfirst -= 256; | |
| 733 | ||
| 734 | while (--pos >= 0) { | |
| 1b6737cc | 735 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
736 | if (sfirst[ch] >= 0) |
| 737 | snext[pos] = sfirst[ch] - pos; | |
| 738 | else | |
| 739 | snext[pos] = -pos; | |
| 740 | sfirst[ch] = pos; | |
| 79072805 LW |
741 | } |
| 742 | ||
| c07a80fd | 743 | SvSCREAM_on(sv); |
| 14befaf4 | 744 | /* piggyback on m//g magic */ |
| c445ea15 | 745 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 746 | RETPUSHYES; |
| 79072805 LW |
747 | } |
| 748 | ||
| a0d0e21e | 749 | PP(pp_trans) |
| 79072805 | 750 | { |
| 97aff369 | 751 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
752 | SV *sv; |
| 753 | ||
| 533c011a | 754 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 755 | sv = POPs; |
| 59f00321 RGS |
756 | else if (PL_op->op_private & OPpTARGET_MY) |
| 757 | sv = GETTARGET; | |
| 79072805 | 758 | else { |
| 54b9620d | 759 | sv = DEFSV; |
| a0d0e21e | 760 | EXTEND(SP,1); |
| 79072805 | 761 | } |
| adbc6bb1 | 762 | TARG = sv_newmortal(); |
| 4757a243 | 763 | PUSHi(do_trans(sv)); |
| a0d0e21e | 764 | RETURN; |
| 79072805 LW |
765 | } |
| 766 | ||
| a0d0e21e | 767 | /* Lvalue operators. */ |
| 79072805 | 768 | |
| a0d0e21e LW |
769 | PP(pp_schop) |
| 770 | { | |
| 97aff369 | 771 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
772 | do_chop(TARG, TOPs); |
| 773 | SETTARG; | |
| 774 | RETURN; | |
| 79072805 LW |
775 | } |
| 776 | ||
| a0d0e21e | 777 | PP(pp_chop) |
| 79072805 | 778 | { |
| 97aff369 | 779 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
780 | while (MARK < SP) |
| 781 | do_chop(TARG, *++MARK); | |
| 782 | SP = ORIGMARK; | |
| b59aed67 | 783 | XPUSHTARG; |
| a0d0e21e | 784 | RETURN; |
| 79072805 LW |
785 | } |
| 786 | ||
| a0d0e21e | 787 | PP(pp_schomp) |
| 79072805 | 788 | { |
| 97aff369 | 789 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
790 | SETi(do_chomp(TOPs)); |
| 791 | RETURN; | |
| 79072805 LW |
792 | } |
| 793 | ||
| a0d0e21e | 794 | PP(pp_chomp) |
| 79072805 | 795 | { |
| 97aff369 | 796 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 797 | register I32 count = 0; |
| 8ec5e241 | 798 | |
| a0d0e21e LW |
799 | while (SP > MARK) |
| 800 | count += do_chomp(POPs); | |
| b59aed67 | 801 | XPUSHi(count); |
| a0d0e21e | 802 | RETURN; |
| 79072805 LW |
803 | } |
| 804 | ||
| a0d0e21e LW |
805 | PP(pp_undef) |
| 806 | { | |
| 97aff369 | 807 | dVAR; dSP; |
| a0d0e21e LW |
808 | SV *sv; |
| 809 | ||
| 533c011a | 810 | if (!PL_op->op_private) { |
| 774d564b | 811 | EXTEND(SP, 1); |
| a0d0e21e | 812 | RETPUSHUNDEF; |
| 774d564b | 813 | } |
| 79072805 | 814 | |
| a0d0e21e LW |
815 | sv = POPs; |
| 816 | if (!sv) | |
| 817 | RETPUSHUNDEF; | |
| 85e6fe83 | 818 | |
| 765f542d | 819 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 820 | |
| a0d0e21e LW |
821 | switch (SvTYPE(sv)) { |
| 822 | case SVt_NULL: | |
| 823 | break; | |
| 824 | case SVt_PVAV: | |
| 502c6561 | 825 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
826 | break; |
| 827 | case SVt_PVHV: | |
| 85fbaab2 | 828 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
829 | break; |
| 830 | case SVt_PVCV: | |
| a2a5de95 NC |
831 | if (cv_const_sv((const CV *)sv)) |
| 832 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", | |
| 833 | CvANON((const CV *)sv) ? "(anonymous)" | |
| 834 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 835 | /* FALLTHROUGH */ |
| 9607fc9c | 836 | case SVt_PVFM: |
| 6fc92669 GS |
837 | { |
| 838 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
839 | GV* const gv = CvGV((const CV *)sv); |
| 840 | cv_undef(MUTABLE_CV(sv)); | |
| 841 | CvGV((const CV *)sv) = gv; | |
| 6fc92669 | 842 | } |
| a0d0e21e | 843 | break; |
| 8e07c86e | 844 | case SVt_PVGV: |
| 6e592b3a | 845 | if (SvFAKE(sv)) { |
| 3280af22 | 846 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
847 | break; |
| 848 | } | |
| 849 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 850 | GP *gp; |
| dd69841b BB |
851 | HV *stash; |
| 852 | ||
| 853 | /* undef *Foo:: */ | |
| 159b6efe | 854 | if((stash = GvHV((const GV *)sv)) && HvNAME_get(stash)) |
| dd69841b BB |
855 | mro_isa_changed_in(stash); |
| 856 | /* undef *Pkg::meth_name ... */ | |
| 159b6efe NC |
857 | else if(GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) |
| 858 | && HvNAME_get(stash)) | |
| dd69841b BB |
859 | mro_method_changed_in(stash); |
| 860 | ||
| 159b6efe | 861 | gp_free(MUTABLE_GV(sv)); |
| a02a5408 | 862 | Newxz(gp, 1, GP); |
| 20408e3c | 863 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 864 | GvSV(sv) = newSV(0); |
| 57843af0 | 865 | GvLINE(sv) = CopLINE(PL_curcop); |
| 159b6efe | 866 | GvEGV(sv) = MUTABLE_GV(sv); |
| 20408e3c | 867 | GvMULTI_on(sv); |
| 6e592b3a | 868 | break; |
| 20408e3c | 869 | } |
| 6e592b3a | 870 | /* FALL THROUGH */ |
| a0d0e21e | 871 | default: |
| b15aece3 | 872 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 873 | SvPV_free(sv); |
| c445ea15 | 874 | SvPV_set(sv, NULL); |
| 4633a7c4 | 875 | SvLEN_set(sv, 0); |
| a0d0e21e | 876 | } |
| 0c34ef67 | 877 | SvOK_off(sv); |
| 4633a7c4 | 878 | SvSETMAGIC(sv); |
| 79072805 | 879 | } |
| a0d0e21e LW |
880 | |
| 881 | RETPUSHUNDEF; | |
| 79072805 LW |
882 | } |
| 883 | ||
| a0d0e21e | 884 | PP(pp_predec) |
| 79072805 | 885 | { |
| 97aff369 | 886 | dVAR; dSP; |
| 6e592b3a | 887 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 888 | DIE(aTHX_ "%s", PL_no_modify); |
| 3510b4a1 NC |
889 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 890 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 891 | { |
| 45977657 | 892 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 893 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
894 | } |
| 895 | else | |
| 896 | sv_dec(TOPs); | |
| a0d0e21e LW |
897 | SvSETMAGIC(TOPs); |
| 898 | return NORMAL; | |
| 899 | } | |
| 79072805 | 900 | |
| a0d0e21e LW |
901 | PP(pp_postinc) |
| 902 | { | |
| 97aff369 | 903 | dVAR; dSP; dTARGET; |
| 6e592b3a | 904 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 905 | DIE(aTHX_ "%s", PL_no_modify); |
| a0d0e21e | 906 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
907 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 908 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 909 | { |
| 45977657 | 910 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 911 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
912 | } |
| 913 | else | |
| 914 | sv_inc(TOPs); | |
| a0d0e21e | 915 | SvSETMAGIC(TOPs); |
| 1e54a23f | 916 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
917 | if (!SvOK(TARG)) |
| 918 | sv_setiv(TARG, 0); | |
| 919 | SETs(TARG); | |
| 920 | return NORMAL; | |
| 921 | } | |
| 79072805 | 922 | |
| a0d0e21e LW |
923 | PP(pp_postdec) |
| 924 | { | |
| 97aff369 | 925 | dVAR; dSP; dTARGET; |
| 6e592b3a | 926 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 927 | DIE(aTHX_ "%s", PL_no_modify); |
| a0d0e21e | 928 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
929 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 930 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 931 | { |
| 45977657 | 932 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 933 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
934 | } |
| 935 | else | |
| 936 | sv_dec(TOPs); | |
| a0d0e21e LW |
937 | SvSETMAGIC(TOPs); |
| 938 | SETs(TARG); | |
| 939 | return NORMAL; | |
| 940 | } | |
| 79072805 | 941 | |
| a0d0e21e LW |
942 | /* Ordinary operators. */ |
| 943 | ||
| 944 | PP(pp_pow) | |
| 945 | { | |
| 800401ee | 946 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 947 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
948 | bool is_int = 0; |
| 949 | #endif | |
| 950 | tryAMAGICbin(pow,opASSIGN); | |
| 800401ee JH |
951 | svl = sv_2num(TOPm1s); |
| 952 | svr = sv_2num(TOPs); | |
| 52a96ae6 HS |
953 | #ifdef PERL_PRESERVE_IVUV |
| 954 | /* For integer to integer power, we do the calculation by hand wherever | |
| 955 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 956 | integer afterwards. */ | |
| 58d76dfd | 957 | { |
| 800401ee JH |
958 | SvIV_please(svr); |
| 959 | if (SvIOK(svr)) { | |
| 960 | SvIV_please(svl); | |
| 961 | if (SvIOK(svl)) { | |
| 900658e3 PF |
962 | UV power; |
| 963 | bool baseuok; | |
| 964 | UV baseuv; | |
| 965 | ||
| 800401ee JH |
966 | if (SvUOK(svr)) { |
| 967 | power = SvUVX(svr); | |
| 900658e3 | 968 | } else { |
| 800401ee | 969 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
970 | if (iv >= 0) { |
| 971 | power = iv; | |
| 972 | } else { | |
| 973 | goto float_it; /* Can't do negative powers this way. */ | |
| 974 | } | |
| 975 | } | |
| 976 | ||
| 800401ee | 977 | baseuok = SvUOK(svl); |
| 900658e3 | 978 | if (baseuok) { |
| 800401ee | 979 | baseuv = SvUVX(svl); |
| 900658e3 | 980 | } else { |
| 800401ee | 981 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
982 | if (iv >= 0) { |
| 983 | baseuv = iv; | |
| 984 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 985 | } else { | |
| 986 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 987 | } | |
| 988 | } | |
| 52a96ae6 HS |
989 | /* now we have integer ** positive integer. */ |
| 990 | is_int = 1; | |
| 991 | ||
| 992 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 993 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 994 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
995 | The logic here will work for any base (even non-integer |
| 996 | bases) but it can be less accurate than | |
| 997 | pow (base,power) or exp (power * log (base)) when the | |
| 998 | intermediate values start to spill out of the mantissa. | |
| 999 | With powers of 2 we know this can't happen. | |
| 1000 | And powers of 2 are the favourite thing for perl | |
| 1001 | programmers to notice ** not doing what they mean. */ | |
| 1002 | NV result = 1.0; | |
| 1003 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
1004 | |
| 1005 | if (power & 1) { | |
| 1006 | result *= base; | |
| 1007 | } | |
| 1008 | while (power >>= 1) { | |
| 1009 | base *= base; | |
| 1010 | if (power & 1) { | |
| 1011 | result *= base; | |
| 1012 | } | |
| 1013 | } | |
| 58d76dfd JH |
1014 | SP--; |
| 1015 | SETn( result ); | |
| 800401ee | 1016 | SvIV_please(svr); |
| 58d76dfd | 1017 | RETURN; |
| 52a96ae6 HS |
1018 | } else { |
| 1019 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1020 | register unsigned int diff = 8 * sizeof(UV); |
| 1021 | while (diff >>= 1) { | |
| 1022 | highbit -= diff; | |
| 1023 | if (baseuv >> highbit) { | |
| 1024 | highbit += diff; | |
| 1025 | } | |
| 52a96ae6 HS |
1026 | } |
| 1027 | /* we now have baseuv < 2 ** highbit */ | |
| 1028 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1029 | /* result will definitely fit in UV, so use UV math | |
| 1030 | on same algorithm as above */ | |
| 1031 | register UV result = 1; | |
| 1032 | register UV base = baseuv; | |
| f2338a2e | 1033 | const bool odd_power = cBOOL(power & 1); |
| 900658e3 PF |
1034 | if (odd_power) { |
| 1035 | result *= base; | |
| 1036 | } | |
| 1037 | while (power >>= 1) { | |
| 1038 | base *= base; | |
| 1039 | if (power & 1) { | |
| 52a96ae6 | 1040 | result *= base; |
| 52a96ae6 HS |
1041 | } |
| 1042 | } | |
| 1043 | SP--; | |
| 0615a994 | 1044 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1045 | /* answer is positive */ |
| 1046 | SETu( result ); | |
| 1047 | else if (result <= (UV)IV_MAX) | |
| 1048 | /* answer negative, fits in IV */ | |
| 1049 | SETi( -(IV)result ); | |
| 1050 | else if (result == (UV)IV_MIN) | |
| 1051 | /* 2's complement assumption: special case IV_MIN */ | |
| 1052 | SETi( IV_MIN ); | |
| 1053 | else | |
| 1054 | /* answer negative, doesn't fit */ | |
| 1055 | SETn( -(NV)result ); | |
| 1056 | RETURN; | |
| 1057 | } | |
| 1058 | } | |
| 1059 | } | |
| 1060 | } | |
| 58d76dfd | 1061 | } |
| 52a96ae6 | 1062 | float_it: |
| 58d76dfd | 1063 | #endif |
| a0d0e21e | 1064 | { |
| 4efa5a16 RD |
1065 | NV right = SvNV(svr); |
| 1066 | NV left = SvNV(svl); | |
| 1067 | (void)POPs; | |
| 3aaeb624 JA |
1068 | |
| 1069 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1070 | /* | |
| 1071 | We are building perl with long double support and are on an AIX OS | |
| 1072 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1073 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1074 | 03/06/2006. The problem exists in at least the following versions | |
| 1075 | of AIX and the libm fileset, and no doubt others as well: | |
| 1076 | ||
| 1077 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1078 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1079 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1080 | ||
| 1081 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1082 | handle the problem ourselves. Our logic is as follows: for | |
| 1083 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1084 | exponent is an odd or even integer: | |
| 1085 | ||
| 1086 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1087 | - if even, powl(left, right) == powl(-left, right) | |
| 1088 | ||
| 1089 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1090 | we just return that (as NV_NAN). | |
| 1091 | */ | |
| 1092 | ||
| 1093 | if (left < 0.0) { | |
| 1094 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1095 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1096 | SETn( -Perl_pow( -left, right) ); | |
| 1097 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1098 | SETn( Perl_pow( -left, right) ); | |
| 1099 | } else { /* fractional power */ | |
| 1100 | SETn( NV_NAN ); | |
| 1101 | } | |
| 1102 | } else { | |
| 1103 | SETn( Perl_pow( left, right) ); | |
| 1104 | } | |
| 1105 | #else | |
| 52a96ae6 | 1106 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1107 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1108 | ||
| 52a96ae6 HS |
1109 | #ifdef PERL_PRESERVE_IVUV |
| 1110 | if (is_int) | |
| 800401ee | 1111 | SvIV_please(svr); |
| 52a96ae6 HS |
1112 | #endif |
| 1113 | RETURN; | |
| 93a17b20 | 1114 | } |
| a0d0e21e LW |
1115 | } |
| 1116 | ||
| 1117 | PP(pp_multiply) | |
| 1118 | { | |
| 800401ee JH |
1119 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1120 | tryAMAGICbin(mult,opASSIGN); | |
| 1121 | svl = sv_2num(TOPm1s); | |
| 1122 | svr = sv_2num(TOPs); | |
| 28e5dec8 | 1123 | #ifdef PERL_PRESERVE_IVUV |
| 800401ee JH |
1124 | SvIV_please(svr); |
| 1125 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1126 | /* Unless the left argument is integer in range we are going to have to |
| 1127 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1128 | we know the left is integer. */ | |
| 1129 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1130 | SvIV_please(svl); |
| 1131 | if (SvIOK(svl)) { | |
| 1132 | bool auvok = SvUOK(svl); | |
| 1133 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1134 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1135 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1136 | UV alow; | |
| 1137 | UV ahigh; | |
| 1138 | UV blow; | |
| 1139 | UV bhigh; | |
| 1140 | ||
| 1141 | if (auvok) { | |
| 800401ee | 1142 | alow = SvUVX(svl); |
| 28e5dec8 | 1143 | } else { |
| 800401ee | 1144 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1145 | if (aiv >= 0) { |
| 1146 | alow = aiv; | |
| 1147 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1148 | } else { | |
| 1149 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1150 | } | |
| 1151 | } | |
| 1152 | if (buvok) { | |
| 800401ee | 1153 | blow = SvUVX(svr); |
| 28e5dec8 | 1154 | } else { |
| 800401ee | 1155 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1156 | if (biv >= 0) { |
| 1157 | blow = biv; | |
| 1158 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1159 | } else { | |
| 1160 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1161 | } | |
| 1162 | } | |
| 1163 | ||
| 1164 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1165 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1166 | alow &= botmask; | |
| 1167 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1168 | blow &= botmask; | |
| 1169 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1170 | NOOP; |
| 28e5dec8 JH |
1171 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1172 | which is overflow. Drop to NVs below. */ | |
| 1173 | } else if (!ahigh && !bhigh) { | |
| 1174 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1175 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1176 | const UV product = alow * blow; |
| 28e5dec8 JH |
1177 | if (auvok == buvok) { |
| 1178 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1179 | SP--; | |
| 1180 | SETu( product ); | |
| 1181 | RETURN; | |
| 1182 | } else if (product <= (UV)IV_MIN) { | |
| 1183 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1184 | /* -ve result, which could overflow an IV */ | |
| 1185 | SP--; | |
| 25716404 | 1186 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1187 | RETURN; |
| 1188 | } /* else drop to NVs below. */ | |
| 1189 | } else { | |
| 1190 | /* One operand is large, 1 small */ | |
| 1191 | UV product_middle; | |
| 1192 | if (bhigh) { | |
| 1193 | /* swap the operands */ | |
| 1194 | ahigh = bhigh; | |
| 1195 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1196 | blow = alow; | |
| 1197 | alow = bhigh; | |
| 1198 | } | |
| 1199 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1200 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1201 | product_middle = ahigh * blow; | |
| 1202 | if (!(product_middle & topmask)) { | |
| 1203 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1204 | UV product_low; | |
| 1205 | product_middle <<= (4 * sizeof (UV)); | |
| 1206 | product_low = alow * blow; | |
| 1207 | ||
| 1208 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1209 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1210 | unsigned whatever the actual representation*/ | |
| 1211 | product_low += product_middle; | |
| 1212 | if (product_low >= product_middle) { | |
| 1213 | /* didn't overflow */ | |
| 1214 | if (auvok == buvok) { | |
| 1215 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1216 | SP--; | |
| 1217 | SETu( product_low ); | |
| 1218 | RETURN; | |
| 1219 | } else if (product_low <= (UV)IV_MIN) { | |
| 1220 | /* 2s complement assumption again */ | |
| 1221 | /* -ve result, which could overflow an IV */ | |
| 1222 | SP--; | |
| 25716404 | 1223 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1224 | RETURN; |
| 1225 | } /* else drop to NVs below. */ | |
| 1226 | } | |
| 1227 | } /* product_middle too large */ | |
| 1228 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1229 | } /* SvIOK(svl) */ |
| 1230 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1231 | #endif |
| a0d0e21e | 1232 | { |
| 4efa5a16 RD |
1233 | NV right = SvNV(svr); |
| 1234 | NV left = SvNV(svl); | |
| 1235 | (void)POPs; | |
| a0d0e21e LW |
1236 | SETn( left * right ); |
| 1237 | RETURN; | |
| 79072805 | 1238 | } |
| a0d0e21e LW |
1239 | } |
| 1240 | ||
| 1241 | PP(pp_divide) | |
| 1242 | { | |
| 800401ee JH |
1243 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1244 | tryAMAGICbin(div,opASSIGN); | |
| 1245 | svl = sv_2num(TOPm1s); | |
| 1246 | svr = sv_2num(TOPs); | |
| 5479d192 | 1247 | /* Only try to do UV divide first |
| 68795e93 | 1248 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1249 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1250 | to preserve)) | |
| 1251 | The assumption is that it is better to use floating point divide | |
| 1252 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1253 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1254 | can be too large to preserve, so don't need to compile the code to | |
| 1255 | test the size of UVs. */ | |
| 1256 | ||
| a0d0e21e | 1257 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1258 | # define PERL_TRY_UV_DIVIDE |
| 1259 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1260 | #else |
| 5479d192 NC |
1261 | # ifdef PERL_PRESERVE_IVUV |
| 1262 | # ifndef NV_PRESERVES_UV | |
| 1263 | # define PERL_TRY_UV_DIVIDE | |
| 1264 | # endif | |
| 1265 | # endif | |
| a0d0e21e | 1266 | #endif |
| 5479d192 NC |
1267 | |
| 1268 | #ifdef PERL_TRY_UV_DIVIDE | |
| 800401ee JH |
1269 | SvIV_please(svr); |
| 1270 | if (SvIOK(svr)) { | |
| 1271 | SvIV_please(svl); | |
| 1272 | if (SvIOK(svl)) { | |
| 1273 | bool left_non_neg = SvUOK(svl); | |
| 1274 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1275 | UV left; |
| 1276 | UV right; | |
| 1277 | ||
| 1278 | if (right_non_neg) { | |
| 800401ee | 1279 | right = SvUVX(svr); |
| 5479d192 NC |
1280 | } |
| 1281 | else { | |
| 800401ee | 1282 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1283 | if (biv >= 0) { |
| 1284 | right = biv; | |
| 1285 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1286 | } | |
| 1287 | else { | |
| 1288 | right = -biv; | |
| 1289 | } | |
| 1290 | } | |
| 1291 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1292 | warning before dieing, hence this test goes here. | |
| 1293 | If it were immediately before the second SvIV_please, then | |
| 1294 | DIE() would be invoked before left was even inspected, so | |
| 1295 | no inpsection would give no warning. */ | |
| 1296 | if (right == 0) | |
| 1297 | DIE(aTHX_ "Illegal division by zero"); | |
| 1298 | ||
| 1299 | if (left_non_neg) { | |
| 800401ee | 1300 | left = SvUVX(svl); |
| 5479d192 NC |
1301 | } |
| 1302 | else { | |
| 800401ee | 1303 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1304 | if (aiv >= 0) { |
| 1305 | left = aiv; | |
| 1306 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1307 | } | |
| 1308 | else { | |
| 1309 | left = -aiv; | |
| 1310 | } | |
| 1311 | } | |
| 1312 | ||
| 1313 | if (left >= right | |
| 1314 | #ifdef SLOPPYDIVIDE | |
| 1315 | /* For sloppy divide we always attempt integer division. */ | |
| 1316 | #else | |
| 1317 | /* Otherwise we only attempt it if either or both operands | |
| 1318 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1319 | we fall through to the NV divide code below. However, |
| 1320 | as left >= right to ensure integer result here, we know that | |
| 1321 | we can skip the test on the right operand - right big | |
| 1322 | enough not to be preserved can't get here unless left is | |
| 1323 | also too big. */ | |
| 1324 | ||
| 1325 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1326 | #endif |
| 1327 | ) { | |
| 1328 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1329 | const UV result = left / right; |
| 5479d192 NC |
1330 | if (result * right == left) { |
| 1331 | SP--; /* result is valid */ | |
| 1332 | if (left_non_neg == right_non_neg) { | |
| 1333 | /* signs identical, result is positive. */ | |
| 1334 | SETu( result ); | |
| 1335 | RETURN; | |
| 1336 | } | |
| 1337 | /* 2s complement assumption */ | |
| 1338 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1339 | SETi( -(IV)result ); |
| 5479d192 NC |
1340 | else { |
| 1341 | /* It's exact but too negative for IV. */ | |
| 1342 | SETn( -(NV)result ); | |
| 1343 | } | |
| 1344 | RETURN; | |
| 1345 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1346 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1347 | } /* left wasn't SvIOK */ |
| 1348 | } /* right wasn't SvIOK */ | |
| 1349 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1350 | { | |
| 4efa5a16 RD |
1351 | NV right = SvNV(svr); |
| 1352 | NV left = SvNV(svl); | |
| 1353 | (void)POPs;(void)POPs; | |
| ebc6a117 PD |
1354 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1355 | if (! Perl_isnan(right) && right == 0.0) | |
| 1356 | #else | |
| 5479d192 | 1357 | if (right == 0.0) |
| ebc6a117 | 1358 | #endif |
| 5479d192 NC |
1359 | DIE(aTHX_ "Illegal division by zero"); |
| 1360 | PUSHn( left / right ); | |
| 1361 | RETURN; | |
| 79072805 | 1362 | } |
| a0d0e21e LW |
1363 | } |
| 1364 | ||
| 1365 | PP(pp_modulo) | |
| 1366 | { | |
| 97aff369 | 1367 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1368 | { |
| 9c5ffd7c JH |
1369 | UV left = 0; |
| 1370 | UV right = 0; | |
| dc656993 JH |
1371 | bool left_neg = FALSE; |
| 1372 | bool right_neg = FALSE; | |
| e2c88acc NC |
1373 | bool use_double = FALSE; |
| 1374 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1375 | NV dright = 0.0; |
| 1376 | NV dleft = 0.0; | |
| 800401ee JH |
1377 | SV * svl; |
| 1378 | SV * const svr = sv_2num(TOPs); | |
| 1379 | SvIV_please(svr); | |
| 1380 | if (SvIOK(svr)) { | |
| 1381 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1382 | if (!right_neg) { |
| 800401ee | 1383 | right = SvUVX(svr); |
| e2c88acc | 1384 | } else { |
| 800401ee | 1385 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1386 | if (biv >= 0) { |
| 1387 | right = biv; | |
| 1388 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1389 | } else { | |
| 1390 | right = -biv; | |
| 1391 | } | |
| 1392 | } | |
| 1393 | } | |
| 1394 | else { | |
| 4efa5a16 | 1395 | dright = SvNV(svr); |
| 787eafbd IZ |
1396 | right_neg = dright < 0; |
| 1397 | if (right_neg) | |
| 1398 | dright = -dright; | |
| e2c88acc NC |
1399 | if (dright < UV_MAX_P1) { |
| 1400 | right = U_V(dright); | |
| 1401 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1402 | } else { | |
| 1403 | use_double = TRUE; | |
| 1404 | } | |
| 787eafbd | 1405 | } |
| 4efa5a16 | 1406 | sp--; |
| a0d0e21e | 1407 | |
| e2c88acc NC |
1408 | /* At this point use_double is only true if right is out of range for |
| 1409 | a UV. In range NV has been rounded down to nearest UV and | |
| 1410 | use_double false. */ | |
| 800401ee JH |
1411 | svl = sv_2num(TOPs); |
| 1412 | SvIV_please(svl); | |
| 1413 | if (!use_double && SvIOK(svl)) { | |
| 1414 | if (SvIOK(svl)) { | |
| 1415 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1416 | if (!left_neg) { |
| 800401ee | 1417 | left = SvUVX(svl); |
| e2c88acc | 1418 | } else { |
| 800401ee | 1419 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1420 | if (aiv >= 0) { |
| 1421 | left = aiv; | |
| 1422 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1423 | } else { | |
| 1424 | left = -aiv; | |
| 1425 | } | |
| 1426 | } | |
| 1427 | } | |
| 1428 | } | |
| 787eafbd | 1429 | else { |
| 4efa5a16 | 1430 | dleft = SvNV(svl); |
| 787eafbd IZ |
1431 | left_neg = dleft < 0; |
| 1432 | if (left_neg) | |
| 1433 | dleft = -dleft; | |
| 68dc0745 | 1434 | |
| e2c88acc NC |
1435 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1436 | both in range for UV then use U_V() rather than floor. */ | |
| 1437 | if (!use_double) { | |
| 1438 | if (dleft < UV_MAX_P1) { | |
| 1439 | /* right was in range, so is dleft, so use UVs not double. | |
| 1440 | */ | |
| 1441 | left = U_V(dleft); | |
| 1442 | } | |
| 1443 | /* left is out of range for UV, right was in range, so promote | |
| 1444 | right (back) to double. */ | |
| 1445 | else { | |
| 1446 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1447 | consistent with the implicit +0 floor in the U_V() | |
| 1448 | inside the #if 1. */ | |
| 1449 | dleft = Perl_floor(dleft + 0.5); | |
| 1450 | use_double = TRUE; | |
| 1451 | if (dright_valid) | |
| 1452 | dright = Perl_floor(dright + 0.5); | |
| 1453 | else | |
| 1454 | dright = right; | |
| 1455 | } | |
| 1456 | } | |
| 1457 | } | |
| 4efa5a16 | 1458 | sp--; |
| 787eafbd | 1459 | if (use_double) { |
| 65202027 | 1460 | NV dans; |
| 787eafbd | 1461 | |
| 787eafbd | 1462 | if (!dright) |
| cea2e8a9 | 1463 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1464 | |
| 65202027 | 1465 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1466 | if ((left_neg != right_neg) && dans) |
| 1467 | dans = dright - dans; | |
| 1468 | if (right_neg) | |
| 1469 | dans = -dans; | |
| 1470 | sv_setnv(TARG, dans); | |
| 1471 | } | |
| 1472 | else { | |
| 1473 | UV ans; | |
| 1474 | ||
| 787eafbd | 1475 | if (!right) |
| cea2e8a9 | 1476 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1477 | |
| 1478 | ans = left % right; | |
| 1479 | if ((left_neg != right_neg) && ans) | |
| 1480 | ans = right - ans; | |
| 1481 | if (right_neg) { | |
| 1482 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1483 | /* could change -foo to be (~foo)+1 instead */ | |
| 1484 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1485 | sv_setiv(TARG, ~ans+1); | |
| 1486 | else | |
| 65202027 | 1487 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1488 | } |
| 1489 | else | |
| 1490 | sv_setuv(TARG, ans); | |
| 1491 | } | |
| 1492 | PUSHTARG; | |
| 1493 | RETURN; | |
| 79072805 | 1494 | } |
| a0d0e21e | 1495 | } |
| 79072805 | 1496 | |
| a0d0e21e LW |
1497 | PP(pp_repeat) |
| 1498 | { | |
| 97aff369 | 1499 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1500 | { |
| 2b573ace JH |
1501 | register IV count; |
| 1502 | dPOPss; | |
| 5b295bef | 1503 | SvGETMAGIC(sv); |
| 2b573ace JH |
1504 | if (SvIOKp(sv)) { |
| 1505 | if (SvUOK(sv)) { | |
| 1b6737cc | 1506 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1507 | if (uv > IV_MAX) |
| 1508 | count = IV_MAX; /* The best we can do? */ | |
| 1509 | else | |
| 1510 | count = uv; | |
| 1511 | } else { | |
| 0bd48802 | 1512 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1513 | if (iv < 0) |
| 1514 | count = 0; | |
| 1515 | else | |
| 1516 | count = iv; | |
| 1517 | } | |
| 1518 | } | |
| 1519 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1520 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1521 | if (nv < 0.0) |
| 1522 | count = 0; | |
| 1523 | else | |
| 1524 | count = (IV)nv; | |
| 1525 | } | |
| 1526 | else | |
| 4ea561bc | 1527 | count = SvIV(sv); |
| 533c011a | 1528 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1529 | dMARK; |
| 0bd48802 AL |
1530 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1531 | const I32 items = SP - MARK; | |
| 1532 | const I32 max = items * count; | |
| 79072805 | 1533 | |
| 2b573ace JH |
1534 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1535 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1536 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1537 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1538 | MEXTEND(MARK, max); |
| 1539 | if (count > 1) { | |
| 1540 | while (SP > MARK) { | |
| 976c8a39 JH |
1541 | #if 0 |
| 1542 | /* This code was intended to fix 20010809.028: | |
| 1543 | ||
| 1544 | $x = 'abcd'; | |
| 1545 | for (($x =~ /./g) x 2) { | |
| 1546 | print chop; # "abcdabcd" expected as output. | |
| 1547 | } | |
| 1548 | ||
| 1549 | * but that change (#11635) broke this code: | |
| 1550 | ||
| 1551 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1552 | ||
| 1553 | * I can't think of a better fix that doesn't introduce | |
| 1554 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1555 | * refcounted, and mortalisation obviously doesn't | |
| 1556 | * Do The Right Thing when the stack has more than | |
| 1557 | * one pointer to the same mortal value. | |
| 1558 | * .robin. | |
| 1559 | */ | |
| e30acc16 RH |
1560 | if (*SP) { |
| 1561 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1562 | SvREADONLY_on(*SP); | |
| 1563 | } | |
| 976c8a39 JH |
1564 | #else |
| 1565 | if (*SP) | |
| 1566 | SvTEMP_off((*SP)); | |
| 1567 | #endif | |
| a0d0e21e | 1568 | SP--; |
| 79072805 | 1569 | } |
| a0d0e21e LW |
1570 | MARK++; |
| 1571 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| ad64d0ec | 1572 | items * sizeof(const SV *), count - 1); |
| a0d0e21e | 1573 | SP += max; |
| 79072805 | 1574 | } |
| a0d0e21e LW |
1575 | else if (count <= 0) |
| 1576 | SP -= items; | |
| 79072805 | 1577 | } |
| a0d0e21e | 1578 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1579 | SV * const tmpstr = POPs; |
| a0d0e21e | 1580 | STRLEN len; |
| 9b877dbb | 1581 | bool isutf; |
| 2b573ace JH |
1582 | static const char oom_string_extend[] = |
| 1583 | "Out of memory during string extend"; | |
| a0d0e21e | 1584 | |
| a0d0e21e LW |
1585 | SvSetSV(TARG, tmpstr); |
| 1586 | SvPV_force(TARG, len); | |
| 9b877dbb | 1587 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1588 | if (count != 1) { |
| 1589 | if (count < 1) | |
| 1590 | SvCUR_set(TARG, 0); | |
| 1591 | else { | |
| c445ea15 | 1592 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1593 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1594 | Perl_croak(aTHX_ oom_string_extend); |
| 1595 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1596 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1597 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1598 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1599 | } |
| a0d0e21e | 1600 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1601 | } |
| dfcb284a GS |
1602 | if (isutf) |
| 1603 | (void)SvPOK_only_UTF8(TARG); | |
| 1604 | else | |
| 1605 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1606 | |
| 1607 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1608 | /* The parser saw this as a list repeat, and there | |
| 1609 | are probably several items on the stack. But we're | |
| 1610 | in scalar context, and there's no pp_list to save us | |
| 1611 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1612 | */ | |
| 1613 | dMARK; | |
| 1614 | SP = MARK; | |
| 1615 | } | |
| a0d0e21e | 1616 | PUSHTARG; |
| 79072805 | 1617 | } |
| a0d0e21e | 1618 | RETURN; |
| 748a9306 | 1619 | } |
| a0d0e21e | 1620 | } |
| 79072805 | 1621 | |
| a0d0e21e LW |
1622 | PP(pp_subtract) |
| 1623 | { | |
| 800401ee JH |
1624 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 1625 | tryAMAGICbin(subtr,opASSIGN); | |
| 1626 | svl = sv_2num(TOPm1s); | |
| 1627 | svr = sv_2num(TOPs); | |
| 1628 | useleft = USE_LEFT(svl); | |
| 28e5dec8 | 1629 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1630 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1631 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 800401ee JH |
1632 | SvIV_please(svr); |
| 1633 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1634 | /* Unless the left argument is integer in range we are going to have to |
| 1635 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1636 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1637 | register UV auv = 0; |
| 1638 | bool auvok = FALSE; | |
| 7dca457a NC |
1639 | bool a_valid = 0; |
| 1640 | ||
| 28e5dec8 | 1641 | if (!useleft) { |
| 7dca457a NC |
1642 | auv = 0; |
| 1643 | a_valid = auvok = 1; | |
| 1644 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1645 | } else { |
| 1646 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1647 | SvIV_please(svl); |
| 1648 | if (SvIOK(svl)) { | |
| 1649 | if ((auvok = SvUOK(svl))) | |
| 1650 | auv = SvUVX(svl); | |
| 7dca457a | 1651 | else { |
| 800401ee | 1652 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1653 | if (aiv >= 0) { |
| 1654 | auv = aiv; | |
| 1655 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1656 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1657 | auv = (UV)-aiv; | |
| 28e5dec8 | 1658 | } |
| 7dca457a NC |
1659 | } |
| 1660 | a_valid = 1; | |
| 1661 | } | |
| 1662 | } | |
| 1663 | if (a_valid) { | |
| 1664 | bool result_good = 0; | |
| 1665 | UV result; | |
| 1666 | register UV buv; | |
| 800401ee | 1667 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1668 | |
| 7dca457a | 1669 | if (buvok) |
| 800401ee | 1670 | buv = SvUVX(svr); |
| 7dca457a | 1671 | else { |
| 800401ee | 1672 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1673 | if (biv >= 0) { |
| 1674 | buv = biv; | |
| 1675 | buvok = 1; | |
| 1676 | } else | |
| 1677 | buv = (UV)-biv; | |
| 1678 | } | |
| 1679 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1680 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1681 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1682 | a - b => (a - b) | |
| 1683 | A - b => -(a + b) | |
| 1684 | a - B => (a + b) | |
| 1685 | A - B => -(a - b) | |
| 1686 | all UV maths. negate result if A negative. | |
| 1687 | subtract if signs same, add if signs differ. */ | |
| 1688 | ||
| 1689 | if (auvok ^ buvok) { | |
| 1690 | /* Signs differ. */ | |
| 1691 | result = auv + buv; | |
| 1692 | if (result >= auv) | |
| 1693 | result_good = 1; | |
| 1694 | } else { | |
| 1695 | /* Signs same */ | |
| 1696 | if (auv >= buv) { | |
| 1697 | result = auv - buv; | |
| 1698 | /* Must get smaller */ | |
| 1699 | if (result <= auv) | |
| 1700 | result_good = 1; | |
| 1701 | } else { | |
| 1702 | result = buv - auv; | |
| 1703 | if (result <= buv) { | |
| 1704 | /* result really should be -(auv-buv). as its negation | |
| 1705 | of true value, need to swap our result flag */ | |
| 1706 | auvok = !auvok; | |
| 1707 | result_good = 1; | |
| 28e5dec8 | 1708 | } |
| 28e5dec8 JH |
1709 | } |
| 1710 | } | |
| 7dca457a NC |
1711 | if (result_good) { |
| 1712 | SP--; | |
| 1713 | if (auvok) | |
| 1714 | SETu( result ); | |
| 1715 | else { | |
| 1716 | /* Negate result */ | |
| 1717 | if (result <= (UV)IV_MIN) | |
| 1718 | SETi( -(IV)result ); | |
| 1719 | else { | |
| 1720 | /* result valid, but out of range for IV. */ | |
| 1721 | SETn( -(NV)result ); | |
| 1722 | } | |
| 1723 | } | |
| 1724 | RETURN; | |
| 1725 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1726 | } |
| 1727 | } | |
| 1728 | #endif | |
| a0d0e21e | 1729 | { |
| 4efa5a16 RD |
1730 | NV value = SvNV(svr); |
| 1731 | (void)POPs; | |
| 1732 | ||
| 28e5dec8 JH |
1733 | if (!useleft) { |
| 1734 | /* left operand is undef, treat as zero - value */ | |
| 1735 | SETn(-value); | |
| 1736 | RETURN; | |
| 1737 | } | |
| 4efa5a16 | 1738 | SETn( SvNV(svl) - value ); |
| 28e5dec8 | 1739 | RETURN; |
| 79072805 | 1740 | } |
| a0d0e21e | 1741 | } |
| 79072805 | 1742 | |
| a0d0e21e LW |
1743 | PP(pp_left_shift) |
| 1744 | { | |
| 97aff369 | 1745 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1746 | { |
| 1b6737cc | 1747 | const IV shift = POPi; |
| d0ba1bd2 | 1748 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1749 | const IV i = TOPi; |
| 972b05a9 | 1750 | SETi(i << shift); |
| d0ba1bd2 JH |
1751 | } |
| 1752 | else { | |
| c445ea15 | 1753 | const UV u = TOPu; |
| 972b05a9 | 1754 | SETu(u << shift); |
| d0ba1bd2 | 1755 | } |
| 55497cff | 1756 | RETURN; |
| 79072805 | 1757 | } |
| a0d0e21e | 1758 | } |
| 79072805 | 1759 | |
| a0d0e21e LW |
1760 | PP(pp_right_shift) |
| 1761 | { | |
| 97aff369 | 1762 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1763 | { |
| 1b6737cc | 1764 | const IV shift = POPi; |
| d0ba1bd2 | 1765 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1766 | const IV i = TOPi; |
| 972b05a9 | 1767 | SETi(i >> shift); |
| d0ba1bd2 JH |
1768 | } |
| 1769 | else { | |
| 0bd48802 | 1770 | const UV u = TOPu; |
| 972b05a9 | 1771 | SETu(u >> shift); |
| d0ba1bd2 | 1772 | } |
| a0d0e21e | 1773 | RETURN; |
| 93a17b20 | 1774 | } |
| 79072805 LW |
1775 | } |
| 1776 | ||
| a0d0e21e | 1777 | PP(pp_lt) |
| 79072805 | 1778 | { |
| 97aff369 | 1779 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1780 | #ifdef PERL_PRESERVE_IVUV |
| 1781 | SvIV_please(TOPs); | |
| 1782 | if (SvIOK(TOPs)) { | |
| 1783 | SvIV_please(TOPm1s); | |
| 1784 | if (SvIOK(TOPm1s)) { | |
| 1785 | bool auvok = SvUOK(TOPm1s); | |
| 1786 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1787 | |
| 28e5dec8 | 1788 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1789 | const IV aiv = SvIVX(TOPm1s); |
| 1790 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1791 | |
| 1792 | SP--; | |
| 1793 | SETs(boolSV(aiv < biv)); | |
| 1794 | RETURN; | |
| 1795 | } | |
| 1796 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1797 | const UV auv = SvUVX(TOPm1s); |
| 1798 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1799 | |
| 1800 | SP--; | |
| 1801 | SETs(boolSV(auv < buv)); | |
| 1802 | RETURN; | |
| 1803 | } | |
| 1804 | if (auvok) { /* ## UV < IV ## */ | |
| 1805 | UV auv; | |
| 1b6737cc | 1806 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1807 | SP--; |
| 1808 | if (biv < 0) { | |
| 1809 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1810 | SETs(&PL_sv_no); | |
| 1811 | RETURN; | |
| 1812 | } | |
| 1813 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1814 | SETs(boolSV(auv < (UV)biv)); |
| 1815 | RETURN; | |
| 1816 | } | |
| 1817 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1818 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1819 | UV buv; |
| 1820 | ||
| 28e5dec8 JH |
1821 | if (aiv < 0) { |
| 1822 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1823 | SP--; | |
| 1824 | SETs(&PL_sv_yes); | |
| 1825 | RETURN; | |
| 1826 | } | |
| 1827 | buv = SvUVX(TOPs); | |
| 1828 | SP--; | |
| 28e5dec8 JH |
1829 | SETs(boolSV((UV)aiv < buv)); |
| 1830 | RETURN; | |
| 1831 | } | |
| 1832 | } | |
| 1833 | } | |
| 1834 | #endif | |
| 30de85b6 | 1835 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1836 | #ifdef PERL_PRESERVE_IVUV |
| 1837 | else | |
| 1838 | #endif | |
| 0bdaccee NC |
1839 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1840 | SP--; | |
| 1841 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1842 | RETURN; | |
| 1843 | } | |
| 30de85b6 | 1844 | #endif |
| a0d0e21e | 1845 | { |
| cab190d4 JD |
1846 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1847 | dPOPTOPnnrl; | |
| 1848 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1849 | RETSETNO; | |
| 1850 | SETs(boolSV(left < right)); | |
| 1851 | #else | |
| a0d0e21e | 1852 | dPOPnv; |
| 54310121 | 1853 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1854 | #endif |
| a0d0e21e | 1855 | RETURN; |
| 79072805 | 1856 | } |
| a0d0e21e | 1857 | } |
| 79072805 | 1858 | |
| a0d0e21e LW |
1859 | PP(pp_gt) |
| 1860 | { | |
| 97aff369 | 1861 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1862 | #ifdef PERL_PRESERVE_IVUV |
| 1863 | SvIV_please(TOPs); | |
| 1864 | if (SvIOK(TOPs)) { | |
| 1865 | SvIV_please(TOPm1s); | |
| 1866 | if (SvIOK(TOPm1s)) { | |
| 1867 | bool auvok = SvUOK(TOPm1s); | |
| 1868 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1869 | |
| 28e5dec8 | 1870 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1871 | const IV aiv = SvIVX(TOPm1s); |
| 1872 | const IV biv = SvIVX(TOPs); | |
| 1873 | ||
| 28e5dec8 JH |
1874 | SP--; |
| 1875 | SETs(boolSV(aiv > biv)); | |
| 1876 | RETURN; | |
| 1877 | } | |
| 1878 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1879 | const UV auv = SvUVX(TOPm1s); |
| 1880 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1881 | |
| 1882 | SP--; | |
| 1883 | SETs(boolSV(auv > buv)); | |
| 1884 | RETURN; | |
| 1885 | } | |
| 1886 | if (auvok) { /* ## UV > IV ## */ | |
| 1887 | UV auv; | |
| 1b6737cc AL |
1888 | const IV biv = SvIVX(TOPs); |
| 1889 | ||
| 28e5dec8 JH |
1890 | SP--; |
| 1891 | if (biv < 0) { | |
| 1892 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1893 | SETs(&PL_sv_yes); | |
| 1894 | RETURN; | |
| 1895 | } | |
| 1896 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1897 | SETs(boolSV(auv > (UV)biv)); |
| 1898 | RETURN; | |
| 1899 | } | |
| 1900 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1901 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1902 | UV buv; |
| 1903 | ||
| 28e5dec8 JH |
1904 | if (aiv < 0) { |
| 1905 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1906 | SP--; | |
| 1907 | SETs(&PL_sv_no); | |
| 1908 | RETURN; | |
| 1909 | } | |
| 1910 | buv = SvUVX(TOPs); | |
| 1911 | SP--; | |
| 28e5dec8 JH |
1912 | SETs(boolSV((UV)aiv > buv)); |
| 1913 | RETURN; | |
| 1914 | } | |
| 1915 | } | |
| 1916 | } | |
| 1917 | #endif | |
| 30de85b6 | 1918 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1919 | #ifdef PERL_PRESERVE_IVUV |
| 1920 | else | |
| 1921 | #endif | |
| 0bdaccee | 1922 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1923 | SP--; |
| 1924 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1925 | RETURN; | |
| 1926 | } | |
| 1927 | #endif | |
| a0d0e21e | 1928 | { |
| cab190d4 JD |
1929 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1930 | dPOPTOPnnrl; | |
| 1931 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1932 | RETSETNO; | |
| 1933 | SETs(boolSV(left > right)); | |
| 1934 | #else | |
| a0d0e21e | 1935 | dPOPnv; |
| 54310121 | 1936 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1937 | #endif |
| a0d0e21e | 1938 | RETURN; |
| 79072805 | 1939 | } |
| a0d0e21e LW |
1940 | } |
| 1941 | ||
| 1942 | PP(pp_le) | |
| 1943 | { | |
| 97aff369 | 1944 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1945 | #ifdef PERL_PRESERVE_IVUV |
| 1946 | SvIV_please(TOPs); | |
| 1947 | if (SvIOK(TOPs)) { | |
| 1948 | SvIV_please(TOPm1s); | |
| 1949 | if (SvIOK(TOPm1s)) { | |
| 1950 | bool auvok = SvUOK(TOPm1s); | |
| 1951 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1952 | |
| 28e5dec8 | 1953 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1954 | const IV aiv = SvIVX(TOPm1s); |
| 1955 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1956 | |
| 1957 | SP--; | |
| 1958 | SETs(boolSV(aiv <= biv)); | |
| 1959 | RETURN; | |
| 1960 | } | |
| 1961 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1962 | UV auv = SvUVX(TOPm1s); | |
| 1963 | UV buv = SvUVX(TOPs); | |
| 1964 | ||
| 1965 | SP--; | |
| 1966 | SETs(boolSV(auv <= buv)); | |
| 1967 | RETURN; | |
| 1968 | } | |
| 1969 | if (auvok) { /* ## UV <= IV ## */ | |
| 1970 | UV auv; | |
| 1b6737cc AL |
1971 | const IV biv = SvIVX(TOPs); |
| 1972 | ||
| 28e5dec8 JH |
1973 | SP--; |
| 1974 | if (biv < 0) { | |
| 1975 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1976 | SETs(&PL_sv_no); | |
| 1977 | RETURN; | |
| 1978 | } | |
| 1979 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1980 | SETs(boolSV(auv <= (UV)biv)); |
| 1981 | RETURN; | |
| 1982 | } | |
| 1983 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1984 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1985 | UV buv; |
| 1b6737cc | 1986 | |
| 28e5dec8 JH |
1987 | if (aiv < 0) { |
| 1988 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1989 | SP--; | |
| 1990 | SETs(&PL_sv_yes); | |
| 1991 | RETURN; | |
| 1992 | } | |
| 1993 | buv = SvUVX(TOPs); | |
| 1994 | SP--; | |
| 28e5dec8 JH |
1995 | SETs(boolSV((UV)aiv <= buv)); |
| 1996 | RETURN; | |
| 1997 | } | |
| 1998 | } | |
| 1999 | } | |
| 2000 | #endif | |
| 30de85b6 | 2001 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2002 | #ifdef PERL_PRESERVE_IVUV |
| 2003 | else | |
| 2004 | #endif | |
| 0bdaccee | 2005 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2006 | SP--; |
| 2007 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 2008 | RETURN; | |
| 2009 | } | |
| 2010 | #endif | |
| a0d0e21e | 2011 | { |
| cab190d4 JD |
2012 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2013 | dPOPTOPnnrl; | |
| 2014 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2015 | RETSETNO; | |
| 2016 | SETs(boolSV(left <= right)); | |
| 2017 | #else | |
| a0d0e21e | 2018 | dPOPnv; |
| 54310121 | 2019 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 2020 | #endif |
| a0d0e21e | 2021 | RETURN; |
| 79072805 | 2022 | } |
| a0d0e21e LW |
2023 | } |
| 2024 | ||
| 2025 | PP(pp_ge) | |
| 2026 | { | |
| 97aff369 | 2027 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
2028 | #ifdef PERL_PRESERVE_IVUV |
| 2029 | SvIV_please(TOPs); | |
| 2030 | if (SvIOK(TOPs)) { | |
| 2031 | SvIV_please(TOPm1s); | |
| 2032 | if (SvIOK(TOPm1s)) { | |
| 2033 | bool auvok = SvUOK(TOPm1s); | |
| 2034 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2035 | |
| 28e5dec8 | 2036 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2037 | const IV aiv = SvIVX(TOPm1s); |
| 2038 | const IV biv = SvIVX(TOPs); | |
| 2039 | ||
| 28e5dec8 JH |
2040 | SP--; |
| 2041 | SETs(boolSV(aiv >= biv)); | |
| 2042 | RETURN; | |
| 2043 | } | |
| 2044 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2045 | const UV auv = SvUVX(TOPm1s); |
| 2046 | const UV buv = SvUVX(TOPs); | |
| 2047 | ||
| 28e5dec8 JH |
2048 | SP--; |
| 2049 | SETs(boolSV(auv >= buv)); | |
| 2050 | RETURN; | |
| 2051 | } | |
| 2052 | if (auvok) { /* ## UV >= IV ## */ | |
| 2053 | UV auv; | |
| 1b6737cc AL |
2054 | const IV biv = SvIVX(TOPs); |
| 2055 | ||
| 28e5dec8 JH |
2056 | SP--; |
| 2057 | if (biv < 0) { | |
| 2058 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2059 | SETs(&PL_sv_yes); | |
| 2060 | RETURN; | |
| 2061 | } | |
| 2062 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2063 | SETs(boolSV(auv >= (UV)biv)); |
| 2064 | RETURN; | |
| 2065 | } | |
| 2066 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2067 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2068 | UV buv; |
| 1b6737cc | 2069 | |
| 28e5dec8 JH |
2070 | if (aiv < 0) { |
| 2071 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2072 | SP--; | |
| 2073 | SETs(&PL_sv_no); | |
| 2074 | RETURN; | |
| 2075 | } | |
| 2076 | buv = SvUVX(TOPs); | |
| 2077 | SP--; | |
| 28e5dec8 JH |
2078 | SETs(boolSV((UV)aiv >= buv)); |
| 2079 | RETURN; | |
| 2080 | } | |
| 2081 | } | |
| 2082 | } | |
| 2083 | #endif | |
| 30de85b6 | 2084 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2085 | #ifdef PERL_PRESERVE_IVUV |
| 2086 | else | |
| 2087 | #endif | |
| 0bdaccee | 2088 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2089 | SP--; |
| 2090 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2091 | RETURN; | |
| 2092 | } | |
| 2093 | #endif | |
| a0d0e21e | 2094 | { |
| cab190d4 JD |
2095 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2096 | dPOPTOPnnrl; | |
| 2097 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2098 | RETSETNO; | |
| 2099 | SETs(boolSV(left >= right)); | |
| 2100 | #else | |
| a0d0e21e | 2101 | dPOPnv; |
| 54310121 | 2102 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2103 | #endif |
| a0d0e21e | 2104 | RETURN; |
| 79072805 | 2105 | } |
| a0d0e21e | 2106 | } |
| 79072805 | 2107 | |
| a0d0e21e LW |
2108 | PP(pp_ne) |
| 2109 | { | |
| 97aff369 | 2110 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2111 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2112 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2113 | SP--; |
| 2114 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2115 | RETURN; |
| 2116 | } | |
| 2117 | #endif | |
| 28e5dec8 JH |
2118 | #ifdef PERL_PRESERVE_IVUV |
| 2119 | SvIV_please(TOPs); | |
| 2120 | if (SvIOK(TOPs)) { | |
| 2121 | SvIV_please(TOPm1s); | |
| 2122 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2123 | const bool auvok = SvUOK(TOPm1s); |
| 2124 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2125 | |
| 30de85b6 NC |
2126 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2127 | /* Casting IV to UV before comparison isn't going to matter | |
| 2128 | on 2s complement. On 1s complement or sign&magnitude | |
| 2129 | (if we have any of them) it could make negative zero | |
| 2130 | differ from normal zero. As I understand it. (Need to | |
| 2131 | check - is negative zero implementation defined behaviour | |
| 2132 | anyway?). NWC */ | |
| 1b6737cc AL |
2133 | const UV buv = SvUVX(POPs); |
| 2134 | const UV auv = SvUVX(TOPs); | |
| 2135 | ||
| 28e5dec8 JH |
2136 | SETs(boolSV(auv != buv)); |
| 2137 | RETURN; | |
| 2138 | } | |
| 2139 | { /* ## Mixed IV,UV ## */ | |
| 2140 | IV iv; | |
| 2141 | UV uv; | |
| 2142 | ||
| 2143 | /* != is commutative so swap if needed (save code) */ | |
| 2144 | if (auvok) { | |
| 2145 | /* swap. top of stack (b) is the iv */ | |
| 2146 | iv = SvIVX(TOPs); | |
| 2147 | SP--; | |
| 2148 | if (iv < 0) { | |
| 2149 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2150 | SETs(&PL_sv_yes); | |
| 2151 | RETURN; | |
| 2152 | } | |
| 2153 | uv = SvUVX(TOPs); | |
| 2154 | } else { | |
| 2155 | iv = SvIVX(TOPm1s); | |
| 2156 | SP--; | |
| 2157 | if (iv < 0) { | |
| 2158 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2159 | SETs(&PL_sv_yes); | |
| 2160 | RETURN; | |
| 2161 | } | |
| 2162 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2163 | } | |
| 28e5dec8 JH |
2164 | SETs(boolSV((UV)iv != uv)); |
| 2165 | RETURN; | |
| 2166 | } | |
| 2167 | } | |
| 2168 | } | |
| 2169 | #endif | |
| a0d0e21e | 2170 | { |
| cab190d4 JD |
2171 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2172 | dPOPTOPnnrl; | |
| 2173 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2174 | RETSETYES; | |
| 2175 | SETs(boolSV(left != right)); | |
| 2176 | #else | |
| a0d0e21e | 2177 | dPOPnv; |
| 54310121 | 2178 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2179 | #endif |
| a0d0e21e LW |
2180 | RETURN; |
| 2181 | } | |
| 79072805 LW |
2182 | } |
| 2183 | ||
| a0d0e21e | 2184 | PP(pp_ncmp) |
| 79072805 | 2185 | { |
| 97aff369 | 2186 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2187 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2188 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2189 | const UV right = PTR2UV(SvRV(POPs)); |
| 2190 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2191 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2192 | RETURN; |
| 2193 | } | |
| 2194 | #endif | |
| 28e5dec8 JH |
2195 | #ifdef PERL_PRESERVE_IVUV |
| 2196 | /* Fortunately it seems NaN isn't IOK */ | |
| 2197 | SvIV_please(TOPs); | |
| 2198 | if (SvIOK(TOPs)) { | |
| 2199 | SvIV_please(TOPm1s); | |
| 2200 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2201 | const bool leftuvok = SvUOK(TOPm1s); |
| 2202 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2203 | I32 value; |
| 2204 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2205 | const IV leftiv = SvIVX(TOPm1s); |
| 2206 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2207 | |
| 2208 | if (leftiv > rightiv) | |
| 2209 | value = 1; | |
| 2210 | else if (leftiv < rightiv) | |
| 2211 | value = -1; | |
| 2212 | else | |
| 2213 | value = 0; | |
| 2214 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2215 | const UV leftuv = SvUVX(TOPm1s); |
| 2216 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2217 | |
| 2218 | if (leftuv > rightuv) | |
| 2219 | value = 1; | |
| 2220 | else if (leftuv < rightuv) | |
| 2221 | value = -1; | |
| 2222 | else | |
| 2223 | value = 0; | |
| 2224 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2225 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2226 | if (rightiv < 0) { |
| 2227 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2228 | value = 1; | |
| 2229 | } else { | |
| 1b6737cc | 2230 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2231 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2232 | value = 1; |
| 2233 | } else if (leftuv < (UV)rightiv) { | |
| 2234 | value = -1; | |
| 2235 | } else { | |
| 2236 | value = 0; | |
| 2237 | } | |
| 2238 | } | |
| 2239 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2240 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2241 | if (leftiv < 0) { |
| 2242 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2243 | value = -1; | |
| 2244 | } else { | |
| 1b6737cc | 2245 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2246 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2247 | value = 1; |
| 83bac5dd | 2248 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2249 | value = -1; |
| 2250 | } else { | |
| 2251 | value = 0; | |
| 2252 | } | |
| 2253 | } | |
| 2254 | } | |
| 2255 | SP--; | |
| 2256 | SETi(value); | |
| 2257 | RETURN; | |
| 2258 | } | |
| 2259 | } | |
| 2260 | #endif | |
| a0d0e21e LW |
2261 | { |
| 2262 | dPOPTOPnnrl; | |
| 2263 | I32 value; | |
| 79072805 | 2264 | |
| a3540c92 | 2265 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2266 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2267 | SETs(&PL_sv_undef); | |
| 2268 | RETURN; | |
| 2269 | } | |
| 2270 | value = (left > right) - (left < right); | |
| 2271 | #else | |
| ff0cee69 | 2272 | if (left == right) |
| a0d0e21e | 2273 | value = 0; |
| a0d0e21e LW |
2274 | else if (left < right) |
| 2275 | value = -1; | |
| 44a8e56a | 2276 | else if (left > right) |
| 2277 | value = 1; | |
| 2278 | else { | |
| 3280af22 | 2279 | SETs(&PL_sv_undef); |
| 44a8e56a | 2280 | RETURN; |
| 2281 | } | |
| 1ad04cfd | 2282 | #endif |
| a0d0e21e LW |
2283 | SETi(value); |
| 2284 | RETURN; | |
| 79072805 | 2285 | } |
| a0d0e21e | 2286 | } |
| 79072805 | 2287 | |
| afd9910b | 2288 | PP(pp_sle) |
| a0d0e21e | 2289 | { |
| 97aff369 | 2290 | dVAR; dSP; |
| 79072805 | 2291 | |
| afd9910b NC |
2292 | int amg_type = sle_amg; |
| 2293 | int multiplier = 1; | |
| 2294 | int rhs = 1; | |
| 79072805 | 2295 | |
| afd9910b NC |
2296 | switch (PL_op->op_type) { |
| 2297 | case OP_SLT: | |
| 2298 | amg_type = slt_amg; | |
| 2299 | /* cmp < 0 */ | |
| 2300 | rhs = 0; | |
| 2301 | break; | |
| 2302 | case OP_SGT: | |
| 2303 | amg_type = sgt_amg; | |
| 2304 | /* cmp > 0 */ | |
| 2305 | multiplier = -1; | |
| 2306 | rhs = 0; | |
| 2307 | break; | |
| 2308 | case OP_SGE: | |
| 2309 | amg_type = sge_amg; | |
| 2310 | /* cmp >= 0 */ | |
| 2311 | multiplier = -1; | |
| 2312 | break; | |
| 79072805 | 2313 | } |
| 79072805 | 2314 | |
| afd9910b | 2315 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2316 | { |
| 2317 | dPOPTOPssrl; | |
| 1b6737cc | 2318 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2319 | ? sv_cmp_locale(left, right) |
| 2320 | : sv_cmp(left, right)); | |
| afd9910b | 2321 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2322 | RETURN; |
| 2323 | } | |
| 2324 | } | |
| 79072805 | 2325 | |
| 36477c24 | 2326 | PP(pp_seq) |
| 2327 | { | |
| 97aff369 | 2328 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2329 | { |
| 2330 | dPOPTOPssrl; | |
| 54310121 | 2331 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2332 | RETURN; |
| 2333 | } | |
| 2334 | } | |
| 79072805 | 2335 | |
| a0d0e21e | 2336 | PP(pp_sne) |
| 79072805 | 2337 | { |
| 97aff369 | 2338 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2339 | { |
| 2340 | dPOPTOPssrl; | |
| 54310121 | 2341 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2342 | RETURN; |
| 463ee0b2 | 2343 | } |
| 79072805 LW |
2344 | } |
| 2345 | ||
| a0d0e21e | 2346 | PP(pp_scmp) |
| 79072805 | 2347 | { |
| 97aff369 | 2348 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2349 | { |
| 2350 | dPOPTOPssrl; | |
| 1b6737cc | 2351 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2352 | ? sv_cmp_locale(left, right) |
| 2353 | : sv_cmp(left, right)); | |
| 2354 | SETi( cmp ); | |
| a0d0e21e LW |
2355 | RETURN; |
| 2356 | } | |
| 2357 | } | |
| 79072805 | 2358 | |
| 55497cff | 2359 | PP(pp_bit_and) |
| 2360 | { | |
| 97aff369 | 2361 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2362 | { |
| 2363 | dPOPTOPssrl; | |
| 5b295bef RD |
2364 | SvGETMAGIC(left); |
| 2365 | SvGETMAGIC(right); | |
| 4633a7c4 | 2366 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2367 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2368 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2369 | SETi(i); |
| d0ba1bd2 JH |
2370 | } |
| 2371 | else { | |
| 1b6737cc | 2372 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2373 | SETu(u); |
| d0ba1bd2 | 2374 | } |
| a0d0e21e LW |
2375 | } |
| 2376 | else { | |
| 533c011a | 2377 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2378 | SETTARG; |
| 2379 | } | |
| 2380 | RETURN; | |
| 2381 | } | |
| 2382 | } | |
| 79072805 | 2383 | |
| a0d0e21e LW |
2384 | PP(pp_bit_or) |
| 2385 | { | |
| 3658c1f1 NC |
2386 | dVAR; dSP; dATARGET; |
| 2387 | const int op_type = PL_op->op_type; | |
| 2388 | ||
| 2389 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2390 | { |
| 2391 | dPOPTOPssrl; | |
| 5b295bef RD |
2392 | SvGETMAGIC(left); |
| 2393 | SvGETMAGIC(right); | |
| 4633a7c4 | 2394 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2395 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2396 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2397 | const IV r = SvIV_nomg(right); | |
| 2398 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2399 | SETi(result); | |
| d0ba1bd2 JH |
2400 | } |
| 2401 | else { | |
| 3658c1f1 NC |
2402 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2403 | const UV r = SvUV_nomg(right); | |
| 2404 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2405 | SETu(result); | |
| d0ba1bd2 | 2406 | } |
| a0d0e21e LW |
2407 | } |
| 2408 | else { | |
| 3658c1f1 | 2409 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2410 | SETTARG; |
| 2411 | } | |
| 2412 | RETURN; | |
| 79072805 | 2413 | } |
| a0d0e21e | 2414 | } |
| 79072805 | 2415 | |
| a0d0e21e LW |
2416 | PP(pp_negate) |
| 2417 | { | |
| 97aff369 | 2418 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e | 2419 | { |
| 800401ee | 2420 | SV * const sv = sv_2num(TOPs); |
| 1b6737cc | 2421 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2422 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2423 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2424 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2425 | oops_its_an_int: | |
| 9b0e499b GS |
2426 | if (SvIsUV(sv)) { |
| 2427 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2428 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2429 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2430 | RETURN; | |
| 2431 | } | |
| 2432 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2433 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2434 | RETURN; |
| 2435 | } | |
| 2436 | } | |
| 2437 | else if (SvIVX(sv) != IV_MIN) { | |
| 2438 | SETi(-SvIVX(sv)); | |
| 2439 | RETURN; | |
| 2440 | } | |
| 28e5dec8 JH |
2441 | #ifdef PERL_PRESERVE_IVUV |
| 2442 | else { | |
| 2443 | SETu((UV)IV_MIN); | |
| 2444 | RETURN; | |
| 2445 | } | |
| 2446 | #endif | |
| 9b0e499b GS |
2447 | } |
| 2448 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2449 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2450 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2451 | STRLEN len; |
| c445ea15 | 2452 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2453 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2454 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2455 | sv_catsv(TARG, sv); |
| 79072805 | 2456 | } |
| a0d0e21e LW |
2457 | else if (*s == '+' || *s == '-') { |
| 2458 | sv_setsv(TARG, sv); | |
| 2459 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2460 | } |
| 8eb28a70 JH |
2461 | else if (DO_UTF8(sv)) { |
| 2462 | SvIV_please(sv); | |
| 2463 | if (SvIOK(sv)) | |
| 2464 | goto oops_its_an_int; | |
| 2465 | if (SvNOK(sv)) | |
| 2466 | sv_setnv(TARG, -SvNV(sv)); | |
| 2467 | else { | |
| 76f68e9b | 2468 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2469 | sv_catsv(TARG, sv); |
| 2470 | } | |
| 834a4ddd | 2471 | } |
| 28e5dec8 | 2472 | else { |
| 8eb28a70 JH |
2473 | SvIV_please(sv); |
| 2474 | if (SvIOK(sv)) | |
| 2475 | goto oops_its_an_int; | |
| 2476 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2477 | } |
| a0d0e21e | 2478 | SETTARG; |
| 79072805 | 2479 | } |
| 4633a7c4 LW |
2480 | else |
| 2481 | SETn(-SvNV(sv)); | |
| 79072805 | 2482 | } |
| a0d0e21e | 2483 | RETURN; |
| 79072805 LW |
2484 | } |
| 2485 | ||
| a0d0e21e | 2486 | PP(pp_not) |
| 79072805 | 2487 | { |
| 97aff369 | 2488 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2489 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2490 | return NORMAL; |
| 79072805 LW |
2491 | } |
| 2492 | ||
| a0d0e21e | 2493 | PP(pp_complement) |
| 79072805 | 2494 | { |
| 97aff369 | 2495 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2496 | { |
| 2497 | dTOPss; | |
| 5b295bef | 2498 | SvGETMAGIC(sv); |
| 4633a7c4 | 2499 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2500 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2501 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2502 | SETi(i); |
| d0ba1bd2 JH |
2503 | } |
| 2504 | else { | |
| 1b6737cc | 2505 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2506 | SETu(u); |
| d0ba1bd2 | 2507 | } |
| a0d0e21e LW |
2508 | } |
| 2509 | else { | |
| 51723571 | 2510 | register U8 *tmps; |
| 55497cff | 2511 | register I32 anum; |
| a0d0e21e LW |
2512 | STRLEN len; |
| 2513 | ||
| 10516c54 | 2514 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2515 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2516 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2517 | anum = len; |
| 1d68d6cd | 2518 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2519 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2520 | STRLEN targlen = 0; |
| ba210ebe | 2521 | STRLEN l; |
| a1ca4561 YST |
2522 | UV nchar = 0; |
| 2523 | UV nwide = 0; | |
| 01f6e806 | 2524 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2525 | U8 * const origtmps = tmps; |
| 2526 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2527 | |
| 1d68d6cd | 2528 | while (tmps < send) { |
| 74d49cd0 TS |
2529 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2530 | tmps += l; | |
| 5bbb0b5a | 2531 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2532 | nchar++; |
| 2533 | if (c > 0xff) | |
| 2534 | nwide++; | |
| 1d68d6cd SC |
2535 | } |
| 2536 | ||
| 2537 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2538 | tmps = origtmps; |
| a1ca4561 YST |
2539 | |
| 2540 | if (nwide) { | |
| 01f6e806 AL |
2541 | U8 *result; |
| 2542 | U8 *p; | |
| 2543 | ||
| 74d49cd0 | 2544 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2545 | p = result; |
| a1ca4561 | 2546 | while (tmps < send) { |
| 74d49cd0 TS |
2547 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2548 | tmps += l; | |
| 01f6e806 | 2549 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2550 | } |
| 01f6e806 | 2551 | *p = '\0'; |
| c1c21316 NC |
2552 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2553 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2554 | SvUTF8_on(TARG); |
| 2555 | } | |
| 2556 | else { | |
| 01f6e806 AL |
2557 | U8 *result; |
| 2558 | U8 *p; | |
| 2559 | ||
| 74d49cd0 | 2560 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2561 | p = result; |
| a1ca4561 | 2562 | while (tmps < send) { |
| 74d49cd0 TS |
2563 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2564 | tmps += l; | |
| 01f6e806 | 2565 | *p++ = ~c; |
| a1ca4561 | 2566 | } |
| 01f6e806 | 2567 | *p = '\0'; |
| c1c21316 | 2568 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2569 | SvUTF8_off(TARG); |
| 1d68d6cd | 2570 | } |
| ec93b65f | 2571 | SETTARG; |
| 1d68d6cd SC |
2572 | RETURN; |
| 2573 | } | |
| a0d0e21e | 2574 | #ifdef LIBERAL |
| 51723571 JH |
2575 | { |
| 2576 | register long *tmpl; | |
| 2577 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2578 | *tmps = ~*tmps; | |
| 2579 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2580 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2581 | *tmpl = ~*tmpl; |
| 2582 | tmps = (U8*)tmpl; | |
| 2583 | } | |
| a0d0e21e LW |
2584 | #endif |
| 2585 | for ( ; anum > 0; anum--, tmps++) | |
| 2586 | *tmps = ~*tmps; | |
| ec93b65f | 2587 | SETTARG; |
| a0d0e21e LW |
2588 | } |
| 2589 | RETURN; | |
| 2590 | } | |
| 79072805 LW |
2591 | } |
| 2592 | ||
| a0d0e21e LW |
2593 | /* integer versions of some of the above */ |
| 2594 | ||
| a0d0e21e | 2595 | PP(pp_i_multiply) |
| 79072805 | 2596 | { |
| 97aff369 | 2597 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2598 | { |
| 2599 | dPOPTOPiirl; | |
| 2600 | SETi( left * right ); | |
| 2601 | RETURN; | |
| 2602 | } | |
| 79072805 LW |
2603 | } |
| 2604 | ||
| a0d0e21e | 2605 | PP(pp_i_divide) |
| 79072805 | 2606 | { |
| ece1bcef | 2607 | IV num; |
| 97aff369 | 2608 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2609 | { |
| 2610 | dPOPiv; | |
| 2611 | if (value == 0) | |
| ece1bcef SP |
2612 | DIE(aTHX_ "Illegal division by zero"); |
| 2613 | num = POPi; | |
| a0cec769 YST |
2614 | |
| 2615 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2616 | if (value == -1) | |
| 2617 | value = - num; | |
| 2618 | else | |
| 2619 | value = num / value; | |
| a0d0e21e LW |
2620 | PUSHi( value ); |
| 2621 | RETURN; | |
| 2622 | } | |
| 79072805 LW |
2623 | } |
| 2624 | ||
| befad5d1 | 2625 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2626 | STATIC |
| 2627 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2628 | #else |
| 2629 | PP(pp_i_modulo) | |
| 2630 | #endif | |
| 224ec323 JH |
2631 | { |
| 2632 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2633 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2634 | { |
| 2635 | dPOPTOPiirl; | |
| 2636 | if (!right) | |
| 2637 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2638 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2639 | if (right == -1) | |
| 2640 | SETi( 0 ); | |
| 2641 | else | |
| 2642 | SETi( left % right ); | |
| 224ec323 JH |
2643 | RETURN; |
| 2644 | } | |
| 2645 | } | |
| 2646 | ||
| 11010fa3 | 2647 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2648 | STATIC |
| 2649 | PP(pp_i_modulo_1) | |
| befad5d1 | 2650 | |
| 224ec323 | 2651 | { |
| 224ec323 | 2652 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2653 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2654 | * See below for pp_i_modulo. */ |
| 5186cc12 | 2655 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2656 | { |
| 2657 | dPOPTOPiirl; | |
| 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 % PERL_ABS(right) ); | |
| 224ec323 JH |
2665 | RETURN; |
| 2666 | } | |
| 224ec323 JH |
2667 | } |
| 2668 | ||
| a0d0e21e | 2669 | PP(pp_i_modulo) |
| 79072805 | 2670 | { |
| 27da23d5 | 2671 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2672 | { |
| 2673 | dPOPTOPiirl; | |
| 2674 | if (!right) | |
| 2675 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2676 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2677 | PL_op->op_ppaddr = | |
| 2678 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2679 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2680 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2681 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2682 | * words our integer modulus with negative quad as the second | |
| 2683 | * argument might be broken. Test for this and re-patch the | |
| 2684 | * opcode dispatch table if that is the case, remembering to | |
| 2685 | * also apply the workaround so that this first round works | |
| 2686 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2687 | { |
| 2688 | IV l = 3; | |
| 2689 | IV r = -10; | |
| 2690 | /* Cannot do this check with inlined IV constants since | |
| 2691 | * that seems to work correctly even with the buggy glibc. */ | |
| 2692 | if (l % r == -3) { | |
| 2693 | /* Yikes, we have the bug. | |
| 2694 | * Patch in the workaround version. */ | |
| 2695 | PL_op->op_ppaddr = | |
| 2696 | PL_ppaddr[OP_I_MODULO] = | |
| 2697 | &Perl_pp_i_modulo_1; | |
| 2698 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2699 | right = PERL_ABS(right); |
| 224ec323 JH |
2700 | } |
| 2701 | } | |
| a0cec769 YST |
2702 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2703 | if (right == -1) | |
| 2704 | SETi( 0 ); | |
| 2705 | else | |
| 2706 | SETi( left % right ); | |
| 224ec323 JH |
2707 | RETURN; |
| 2708 | } | |
| 79072805 | 2709 | } |
| befad5d1 | 2710 | #endif |
| 79072805 | 2711 | |
| a0d0e21e | 2712 | PP(pp_i_add) |
| 79072805 | 2713 | { |
| 97aff369 | 2714 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2715 | { |
| 5e66d4f1 | 2716 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2717 | SETi( left + right ); |
| 2718 | RETURN; | |
| 79072805 | 2719 | } |
| 79072805 LW |
2720 | } |
| 2721 | ||
| a0d0e21e | 2722 | PP(pp_i_subtract) |
| 79072805 | 2723 | { |
| 97aff369 | 2724 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2725 | { |
| 5e66d4f1 | 2726 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2727 | SETi( left - right ); |
| 2728 | RETURN; | |
| 79072805 | 2729 | } |
| 79072805 LW |
2730 | } |
| 2731 | ||
| a0d0e21e | 2732 | PP(pp_i_lt) |
| 79072805 | 2733 | { |
| 97aff369 | 2734 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2735 | { |
| 2736 | dPOPTOPiirl; | |
| 54310121 | 2737 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2738 | RETURN; |
| 2739 | } | |
| 79072805 LW |
2740 | } |
| 2741 | ||
| a0d0e21e | 2742 | PP(pp_i_gt) |
| 79072805 | 2743 | { |
| 97aff369 | 2744 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2745 | { |
| 2746 | dPOPTOPiirl; | |
| 54310121 | 2747 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2748 | RETURN; |
| 2749 | } | |
| 79072805 LW |
2750 | } |
| 2751 | ||
| a0d0e21e | 2752 | PP(pp_i_le) |
| 79072805 | 2753 | { |
| 97aff369 | 2754 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2755 | { |
| 2756 | dPOPTOPiirl; | |
| 54310121 | 2757 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2758 | RETURN; |
| 85e6fe83 | 2759 | } |
| 79072805 LW |
2760 | } |
| 2761 | ||
| a0d0e21e | 2762 | PP(pp_i_ge) |
| 79072805 | 2763 | { |
| 97aff369 | 2764 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2765 | { |
| 2766 | dPOPTOPiirl; | |
| 54310121 | 2767 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2768 | RETURN; |
| 2769 | } | |
| 79072805 LW |
2770 | } |
| 2771 | ||
| a0d0e21e | 2772 | PP(pp_i_eq) |
| 79072805 | 2773 | { |
| 97aff369 | 2774 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2775 | { |
| 2776 | dPOPTOPiirl; | |
| 54310121 | 2777 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2778 | RETURN; |
| 2779 | } | |
| 79072805 LW |
2780 | } |
| 2781 | ||
| a0d0e21e | 2782 | PP(pp_i_ne) |
| 79072805 | 2783 | { |
| 97aff369 | 2784 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2785 | { |
| 2786 | dPOPTOPiirl; | |
| 54310121 | 2787 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2788 | RETURN; |
| 2789 | } | |
| 79072805 LW |
2790 | } |
| 2791 | ||
| a0d0e21e | 2792 | PP(pp_i_ncmp) |
| 79072805 | 2793 | { |
| 97aff369 | 2794 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2795 | { |
| 2796 | dPOPTOPiirl; | |
| 2797 | I32 value; | |
| 79072805 | 2798 | |
| a0d0e21e | 2799 | if (left > right) |
| 79072805 | 2800 | value = 1; |
| a0d0e21e | 2801 | else if (left < right) |
| 79072805 | 2802 | value = -1; |
| a0d0e21e | 2803 | else |
| 79072805 | 2804 | value = 0; |
| a0d0e21e LW |
2805 | SETi(value); |
| 2806 | RETURN; | |
| 79072805 | 2807 | } |
| 85e6fe83 LW |
2808 | } |
| 2809 | ||
| 2810 | PP(pp_i_negate) | |
| 2811 | { | |
| 97aff369 | 2812 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2813 | SETi(-TOPi); |
| 2814 | RETURN; | |
| 2815 | } | |
| 2816 | ||
| 79072805 LW |
2817 | /* High falutin' math. */ |
| 2818 | ||
| 2819 | PP(pp_atan2) | |
| 2820 | { | |
| 97aff369 | 2821 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2822 | { |
| 2823 | dPOPTOPnnrl; | |
| a1021d57 | 2824 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2825 | RETURN; |
| 2826 | } | |
| 79072805 LW |
2827 | } |
| 2828 | ||
| 2829 | PP(pp_sin) | |
| 2830 | { | |
| 71302fe3 NC |
2831 | dVAR; dSP; dTARGET; |
| 2832 | int amg_type = sin_amg; | |
| 2833 | const char *neg_report = NULL; | |
| bc81784a | 2834 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2835 | const int op_type = PL_op->op_type; |
| 2836 | ||
| 2837 | switch (op_type) { | |
| 2838 | case OP_COS: | |
| 2839 | amg_type = cos_amg; | |
| bc81784a | 2840 | func = Perl_cos; |
| 71302fe3 NC |
2841 | break; |
| 2842 | case OP_EXP: | |
| 2843 | amg_type = exp_amg; | |
| bc81784a | 2844 | func = Perl_exp; |
| 71302fe3 NC |
2845 | break; |
| 2846 | case OP_LOG: | |
| 2847 | amg_type = log_amg; | |
| bc81784a | 2848 | func = Perl_log; |
| 71302fe3 NC |
2849 | neg_report = "log"; |
| 2850 | break; | |
| 2851 | case OP_SQRT: | |
| 2852 | amg_type = sqrt_amg; | |
| bc81784a | 2853 | func = Perl_sqrt; |
| 71302fe3 NC |
2854 | neg_report = "sqrt"; |
| 2855 | break; | |
| a0d0e21e | 2856 | } |
| 79072805 | 2857 | |
| 71302fe3 | 2858 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2859 | { |
| 1b6737cc | 2860 | const NV value = POPn; |
| 71302fe3 NC |
2861 | if (neg_report) { |
| 2862 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2863 | SET_NUMERIC_STANDARD(); | |
| 2864 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2865 | } | |
| 2866 | } | |
| 2867 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2868 | RETURN; |
| 2869 | } | |
| 79072805 LW |
2870 | } |
| 2871 | ||
| 56cb0a1c AD |
2872 | /* Support Configure command-line overrides for rand() functions. |
| 2873 | After 5.005, perhaps we should replace this by Configure support | |
| 2874 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2875 | compatibility by calling rand() but allow the user to override it. | |
| 2876 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2877 | */ | |
| 85ab1d1d JH |
2878 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2879 | in addition to rand(). So the overrides should not be needed any more. | |
| 2880 | --Jarkko Hietaniemi 27 September 1998 | |
| 2881 | */ | |
| 2882 | ||
| 2883 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2884 | extern double drand48 (void); |
| 56cb0a1c AD |
2885 | #endif |
| 2886 | ||
| 79072805 LW |
2887 | PP(pp_rand) |
| 2888 | { | |
| 97aff369 | 2889 | dVAR; dSP; dTARGET; |
| 65202027 | 2890 | NV value; |
| 79072805 LW |
2891 | if (MAXARG < 1) |
| 2892 | value = 1.0; | |
| 2893 | else | |
| 2894 | value = POPn; | |
| 2895 | if (value == 0.0) | |
| 2896 | value = 1.0; | |
| 80252599 | 2897 | if (!PL_srand_called) { |
| 85ab1d1d | 2898 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2899 | PL_srand_called = TRUE; |
| 93dc8474 | 2900 | } |
| 85ab1d1d | 2901 | value *= Drand01(); |
| 79072805 LW |
2902 | XPUSHn(value); |
| 2903 | RETURN; | |
| 2904 | } | |
| 2905 | ||
| 2906 | PP(pp_srand) | |
| 2907 | { | |
| 97aff369 | 2908 | dVAR; dSP; |
| 0bd48802 | 2909 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2910 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2911 | PL_srand_called = TRUE; |
| 79072805 LW |
2912 | EXTEND(SP, 1); |
| 2913 | RETPUSHYES; | |
| 2914 | } | |
| 2915 | ||
| 79072805 LW |
2916 | PP(pp_int) |
| 2917 | { | |
| 97aff369 | 2918 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2919 | { |
| 800401ee JH |
2920 | SV * const sv = sv_2num(TOPs); |
| 2921 | const IV iv = SvIV(sv); | |
| 28e5dec8 JH |
2922 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2923 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2924 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2925 | relying on floating point to be accurate is a bug. */ | |
| 2926 | ||
| c781a409 | 2927 | if (!SvOK(sv)) { |
| 922c4365 | 2928 | SETu(0); |
| c781a409 RD |
2929 | } |
| 2930 | else if (SvIOK(sv)) { | |
| 2931 | if (SvIsUV(sv)) | |
| 2932 | SETu(SvUV(sv)); | |
| 2933 | else | |
| 28e5dec8 | 2934 | SETi(iv); |
| c781a409 | 2935 | } |
| c781a409 RD |
2936 | else { |
| 2937 | const NV value = SvNV(sv); | |
| 1048ea30 | 2938 | if (value >= 0.0) { |
| 28e5dec8 JH |
2939 | if (value < (NV)UV_MAX + 0.5) { |
| 2940 | SETu(U_V(value)); | |
| 2941 | } else { | |
| 059a1014 | 2942 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2943 | } |
| 1048ea30 | 2944 | } |
| 28e5dec8 JH |
2945 | else { |
| 2946 | if (value > (NV)IV_MIN - 0.5) { | |
| 2947 | SETi(I_V(value)); | |
| 2948 | } else { | |
| 1bbae031 | 2949 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2950 | } |
| 2951 | } | |
| 774d564b | 2952 | } |
| 79072805 | 2953 | } |
| 79072805 LW |
2954 | RETURN; |
| 2955 | } | |
| 2956 | ||
| 463ee0b2 LW |
2957 | PP(pp_abs) |
| 2958 | { | |
| 97aff369 | 2959 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2960 | { |
| 800401ee | 2961 | SV * const sv = sv_2num(TOPs); |
| 28e5dec8 | 2962 | /* This will cache the NV value if string isn't actually integer */ |
| 800401ee | 2963 | const IV iv = SvIV(sv); |
| a227d84d | 2964 | |
| 800401ee | 2965 | if (!SvOK(sv)) { |
| 922c4365 | 2966 | SETu(0); |
| 800401ee JH |
2967 | } |
| 2968 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 2969 | /* IVX is precise */ |
| 800401ee JH |
2970 | if (SvIsUV(sv)) { |
| 2971 | SETu(SvUV(sv)); /* force it to be numeric only */ | |
| 28e5dec8 JH |
2972 | } else { |
| 2973 | if (iv >= 0) { | |
| 2974 | SETi(iv); | |
| 2975 | } else { | |
| 2976 | if (iv != IV_MIN) { | |
| 2977 | SETi(-iv); | |
| 2978 | } else { | |
| 2979 | /* 2s complement assumption. Also, not really needed as | |
| 2980 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2981 | SETu(IV_MIN); | |
| 2982 | } | |
| a227d84d | 2983 | } |
| 28e5dec8 JH |
2984 | } |
| 2985 | } else{ | |
| 800401ee | 2986 | const NV value = SvNV(sv); |
| 774d564b | 2987 | if (value < 0.0) |
| 1b6737cc | 2988 | SETn(-value); |
| a4474c9e DD |
2989 | else |
| 2990 | SETn(value); | |
| 774d564b | 2991 | } |
| a0d0e21e | 2992 | } |
| 774d564b | 2993 | RETURN; |
| 463ee0b2 LW |
2994 | } |
| 2995 | ||
| 79072805 LW |
2996 | PP(pp_oct) |
| 2997 | { | |
| 97aff369 | 2998 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2999 | const char *tmps; |
| 53305cf1 | 3000 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 3001 | STRLEN len; |
| 53305cf1 NC |
3002 | NV result_nv; |
| 3003 | UV result_uv; | |
| 1b6737cc | 3004 | SV* const sv = POPs; |
| 79072805 | 3005 | |
| 349d4f2f | 3006 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
3007 | if (DO_UTF8(sv)) { |
| 3008 | /* If Unicode, try to downgrade | |
| 3009 | * If not possible, croak. */ | |
| 1b6737cc | 3010 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
3011 | |
| 3012 | SvUTF8_on(tsv); | |
| 3013 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 3014 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 3015 | } |
| daa2adfd NC |
3016 | if (PL_op->op_type == OP_HEX) |
| 3017 | goto hex; | |
| 3018 | ||
| 6f894ead | 3019 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3020 | tmps++, len--; |
| 9e24b6e2 | 3021 | if (*tmps == '0') |
| 53305cf1 | 3022 | tmps++, len--; |
| daa2adfd NC |
3023 | if (*tmps == 'x') { |
| 3024 | hex: | |
| 53305cf1 | 3025 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3026 | } |
| 9e24b6e2 | 3027 | else if (*tmps == 'b') |
| 53305cf1 | 3028 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3029 | else |
| 53305cf1 NC |
3030 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3031 | ||
| 3032 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3033 | XPUSHn(result_nv); | |
| 3034 | } | |
| 3035 | else { | |
| 3036 | XPUSHu(result_uv); | |
| 3037 | } | |
| 79072805 LW |
3038 | RETURN; |
| 3039 | } | |
| 3040 | ||
| 3041 | /* String stuff. */ | |
| 3042 | ||
| 3043 | PP(pp_length) | |
| 3044 | { | |
| 97aff369 | 3045 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3046 | SV * const sv = TOPs; |
| a0ed51b3 | 3047 | |
| 656266fc | 3048 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3049 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3050 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3051 | it likes to cache the length. Maybe that should be a documented | |
| 3052 | feature of it. | |
| 92331800 NC |
3053 | */ |
| 3054 | STRLEN len; | |
| 9f621bb0 NC |
3055 | const char *const p |
| 3056 | = sv_2pv_flags(sv, &len, | |
| 3057 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3058 | |
| 9f621bb0 NC |
3059 | if (!p) |
| 3060 | SETs(&PL_sv_undef); | |
| 3061 | else if (DO_UTF8(sv)) { | |
| 899be101 | 3062 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3063 | } |
| 3064 | else | |
| 3065 | SETi(len); | |
| 656266fc | 3066 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3067 | /* Neither magic nor overloaded. */ |
| 3068 | if (DO_UTF8(sv)) | |
| 3069 | SETi(sv_len_utf8(sv)); | |
| 3070 | else | |
| 3071 | SETi(sv_len(sv)); | |
| 656266fc NC |
3072 | } else { |
| 3073 | SETs(&PL_sv_undef); | |
| 92331800 | 3074 | } |
| 79072805 LW |
3075 | RETURN; |
| 3076 | } | |
| 3077 | ||
| 3078 | PP(pp_substr) | |
| 3079 | { | |
| 97aff369 | 3080 | dVAR; dSP; dTARGET; |
| 79072805 | 3081 | SV *sv; |
| 463ee0b2 | 3082 | STRLEN curlen; |
| 9402d6ed | 3083 | STRLEN utf8_curlen; |
| 777f7c56 EB |
3084 | SV * pos_sv; |
| 3085 | IV pos1_iv; | |
| 3086 | int pos1_is_uv; | |
| 3087 | IV pos2_iv; | |
| 3088 | int pos2_is_uv; | |
| 3089 | SV * len_sv; | |
| 3090 | IV len_iv = 0; | |
| 3091 | int len_is_uv = 1; | |
| 050e6362 | 3092 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3093 | const char *tmps; |
| 777f7c56 | 3094 | const IV arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3095 | SV *repl_sv = NULL; |
| cbbf8932 | 3096 | const char *repl = NULL; |
| 7b8d334a | 3097 | STRLEN repl_len; |
| 050e6362 | 3098 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3099 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3100 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3101 | |
| 20408e3c | 3102 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 3103 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
3104 | if (num_args > 2) { |
| 3105 | if (num_args > 3) { | |
| 9402d6ed | 3106 | repl_sv = POPs; |
| 83003860 | 3107 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3108 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3109 | } |
| 777f7c56 EB |
3110 | len_sv = POPs; |
| 3111 | len_iv = SvIV(len_sv); | |
| 3112 | len_is_uv = SvIOK_UV(len_sv); | |
| 5d82c453 | 3113 | } |
| 777f7c56 EB |
3114 | pos_sv = POPs; |
| 3115 | pos1_iv = SvIV(pos_sv); | |
| 3116 | pos1_is_uv = SvIOK_UV(pos_sv); | |
| 79072805 | 3117 | sv = POPs; |
| 849ca7ee | 3118 | PUTBACK; |
| 9402d6ed JH |
3119 | if (repl_sv) { |
| 3120 | if (repl_is_utf8) { | |
| 3121 | if (!DO_UTF8(sv)) | |
| 3122 | sv_utf8_upgrade(sv); | |
| 3123 | } | |
| 13e30c65 JH |
3124 | else if (DO_UTF8(sv)) |
| 3125 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3126 | } |
| 5c144d81 | 3127 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3128 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3129 | utf8_curlen = sv_len_utf8(sv); |
| 3130 | if (utf8_curlen == curlen) | |
| 3131 | utf8_curlen = 0; | |
| a0ed51b3 | 3132 | else |
| 9402d6ed | 3133 | curlen = utf8_curlen; |
| a0ed51b3 | 3134 | } |
| d1c2b58a | 3135 | else |
| 9402d6ed | 3136 | utf8_curlen = 0; |
| a0ed51b3 | 3137 | |
| 777f7c56 EB |
3138 | if ( (pos1_is_uv && arybase < 0) || (pos1_iv >= arybase) ) { /* pos >= $[ */ |
| 3139 | UV pos1_uv = pos1_iv-arybase; | |
| 3140 | /* Overflow can occur when $[ < 0 */ | |
| 3141 | if (arybase < 0 && pos1_uv < (UV)pos1_iv) | |
| 1c900557 | 3142 | goto bound_fail; |
| 777f7c56 EB |
3143 | pos1_iv = pos1_uv; |
| 3144 | pos1_is_uv = 1; | |
| 3145 | } | |
| 3146 | else if (pos1_is_uv ? (UV)pos1_iv > 0 : pos1_iv > 0) { | |
| 1c900557 | 3147 | goto bound_fail; /* $[=3; substr($_,2,...) */ |
| 777f7c56 EB |
3148 | } |
| 3149 | else { /* pos < $[ */ | |
| 3150 | if (pos1_iv == 0) { /* $[=1; substr($_,0,...) */ | |
| 3151 | pos1_iv = curlen; | |
| 3152 | pos1_is_uv = 1; | |
| 3153 | } else { | |
| 3154 | if (curlen) { | |
| 3155 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
| 3156 | pos1_iv += curlen; | |
| 3157 | } | |
| 5d82c453 | 3158 | } |
| 68dc0745 | 3159 | } |
| 777f7c56 EB |
3160 | if (pos1_is_uv || pos1_iv > 0) { |
| 3161 | if ((UV)pos1_iv > curlen) | |
| 1c900557 | 3162 | goto bound_fail; |
| 777f7c56 EB |
3163 | } |
| 3164 | ||
| 3165 | if (num_args > 2) { | |
| 3166 | if (!len_is_uv && len_iv < 0) { | |
| 3167 | pos2_iv = curlen + len_iv; | |
| 3168 | if (curlen) | |
| 3169 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
| 3170 | else | |
| 3171 | pos2_is_uv = 0; | |
| 3172 | } else { /* len_iv >= 0 */ | |
| 3173 | if (!pos1_is_uv && pos1_iv < 0) { | |
| 3174 | pos2_iv = pos1_iv + len_iv; | |
| 3175 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
| 3176 | } else { | |
| 3177 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
| 3178 | pos2_iv = curlen; | |
| 3179 | else | |
| 3180 | pos2_iv = pos1_iv+len_iv; | |
| 3181 | pos2_is_uv = 1; | |
| 3182 | } | |
| 5d82c453 | 3183 | } |
| 2304df62 | 3184 | } |
| 79072805 | 3185 | else { |
| 777f7c56 EB |
3186 | pos2_iv = curlen; |
| 3187 | pos2_is_uv = 1; | |
| 3188 | } | |
| 3189 | ||
| 3190 | if (!pos2_is_uv && pos2_iv < 0) { | |
| 3191 | if (!pos1_is_uv && pos1_iv < 0) | |
| 1c900557 | 3192 | goto bound_fail; |
| 777f7c56 EB |
3193 | pos2_iv = 0; |
| 3194 | } | |
| 3195 | else if (!pos1_is_uv && pos1_iv < 0) | |
| 3196 | pos1_iv = 0; | |
| 3197 | ||
| 3198 | if ((UV)pos2_iv < (UV)pos1_iv) | |
| 3199 | pos2_iv = pos1_iv; | |
| 3200 | if ((UV)pos2_iv > curlen) | |
| 3201 | pos2_iv = curlen; | |
| 3202 | ||
| 3203 | { | |
| 3204 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
| 3205 | const STRLEN pos = (STRLEN)( (UV)pos1_iv ); | |
| 3206 | const STRLEN len = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
| 777f7c56 | 3207 | STRLEN byte_len = len; |
| d931b1be NC |
3208 | STRLEN byte_pos = utf8_curlen |
| 3209 | ? sv_pos_u2b_flags(sv, pos, &byte_len, SV_CONST_RETURN) : pos; | |
| 3210 | ||
| 777f7c56 | 3211 | tmps += byte_pos; |
| 781e7547 DM |
3212 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3213 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3214 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3215 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3216 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3217 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3218 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3219 | : lvalue) | |
| 3220 | { | |
| 3221 | TARG = sv_newmortal(); | |
| 3222 | } | |
| 3223 | } | |
| 3224 | ||
| 777f7c56 | 3225 | sv_setpvn(TARG, tmps, byte_len); |
| 12aa1545 | 3226 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3227 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3228 | #endif |
| 9402d6ed | 3229 | if (utf8_curlen) |
| 7f66633b | 3230 | SvUTF8_on(TARG); |
| f7928d6c | 3231 | if (repl) { |
| 13e30c65 JH |
3232 | SV* repl_sv_copy = NULL; |
| 3233 | ||
| 3234 | if (repl_need_utf8_upgrade) { | |
| 3235 | repl_sv_copy = newSVsv(repl_sv); | |
| 3236 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3237 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3238 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3239 | } | |
| 502d9230 VP |
3240 | if (!SvOK(sv)) |
| 3241 | sv_setpvs(sv, ""); | |
| 777f7c56 | 3242 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
| 9402d6ed | 3243 | if (repl_is_utf8) |
| f7928d6c | 3244 | SvUTF8_on(sv); |
| ef8d46e8 | 3245 | SvREFCNT_dec(repl_sv_copy); |
| f7928d6c | 3246 | } |
| c8faf1c5 | 3247 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3248 | if (!SvGMAGICAL(sv)) { |
| 3249 | if (SvROK(sv)) { | |
| 13c5b33c | 3250 | SvPV_force_nolen(sv); |
| a2a5de95 NC |
3251 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 3252 | "Attempt to use reference as lvalue in substr"); | |
| dedeecda | 3253 | } |
| f7877b28 NC |
3254 | if (isGV_with_GP(sv)) |
| 3255 | SvPV_force_nolen(sv); | |
| 3256 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3257 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3258 | else |
| 523f125d | 3259 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ |
| dedeecda | 3260 | } |
| 5f05dabc | 3261 | |
| a0d0e21e LW |
3262 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3263 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3264 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3265 | } |
| a0d0e21e | 3266 | |
| 5f05dabc | 3267 | LvTYPE(TARG) = 'x'; |
| 6ff81951 | 3268 | if (LvTARG(TARG) != sv) { |
| cb39f75f | 3269 | SvREFCNT_dec(LvTARG(TARG)); |
| b37c2d43 | 3270 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3271 | } |
| 777f7c56 EB |
3272 | LvTARGOFF(TARG) = pos; |
| 3273 | LvTARGLEN(TARG) = len; | |
| 79072805 LW |
3274 | } |
| 3275 | } | |
| 849ca7ee | 3276 | SPAGAIN; |
| 79072805 LW |
3277 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3278 | RETURN; | |
| 777f7c56 | 3279 | |
| 1c900557 | 3280 | bound_fail: |
| 777f7c56 EB |
3281 | if (lvalue || repl) |
| 3282 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3283 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
| 3284 | RETPUSHUNDEF; | |
| 79072805 LW |
3285 | } |
| 3286 | ||
| 3287 | PP(pp_vec) | |
| 3288 | { | |
| 97aff369 | 3289 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3290 | register const IV size = POPi; |
| 3291 | register const IV offset = POPi; | |
| 3292 | register SV * const src = POPs; | |
| 3293 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3294 | |
| 81e118e0 JH |
3295 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3296 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3297 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3298 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3299 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3300 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3301 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3302 | } |
| 81e118e0 JH |
3303 | LvTYPE(TARG) = 'v'; |
| 3304 | if (LvTARG(TARG) != src) { | |
| cb39f75f | 3305 | SvREFCNT_dec(LvTARG(TARG)); |
| b37c2d43 | 3306 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3307 | } |
| 81e118e0 JH |
3308 | LvTARGOFF(TARG) = offset; |
| 3309 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3310 | } |
| 3311 | ||
| 81e118e0 | 3312 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3313 | PUSHs(TARG); |
| 3314 | RETURN; | |
| 3315 | } | |
| 3316 | ||
| 3317 | PP(pp_index) | |
| 3318 | { | |
| 97aff369 | 3319 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3320 | SV *big; |
| 3321 | SV *little; | |
| c445ea15 | 3322 | SV *temp = NULL; |
| ad66a58c | 3323 | STRLEN biglen; |
| 2723d216 | 3324 | STRLEN llen = 0; |
| 79072805 LW |
3325 | I32 offset; |
| 3326 | I32 retval; | |
| 73ee8be2 NC |
3327 | const char *big_p; |
| 3328 | const char *little_p; | |
| fc15ae8f | 3329 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3330 | bool big_utf8; |
| 3331 | bool little_utf8; | |
| 2723d216 | 3332 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3333 | |
| 2723d216 NC |
3334 | if (MAXARG >= 3) { |
| 3335 | /* arybase is in characters, like offset, so combine prior to the | |
| 3336 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3337 | offset = POPi - arybase; |
| 2723d216 | 3338 | } |
| 79072805 LW |
3339 | little = POPs; |
| 3340 | big = POPs; | |
| 73ee8be2 NC |
3341 | big_p = SvPV_const(big, biglen); |
| 3342 | little_p = SvPV_const(little, llen); | |
| 3343 | ||
| e609e586 NC |
3344 | big_utf8 = DO_UTF8(big); |
| 3345 | little_utf8 = DO_UTF8(little); | |
| 3346 | if (big_utf8 ^ little_utf8) { | |
| 3347 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3348 | if (little_utf8 && !PL_encoding) { |
| 3349 | /* Well, maybe instead we might be able to downgrade the small | |
| 3350 | string? */ | |
| 1eced8f8 | 3351 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3352 | &little_utf8); |
| 3353 | if (little_utf8) { | |
| 3354 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3355 | convert the small string to ISO-8859-1, then there is no | |
| 3356 | way that it could be found anywhere by index. */ | |
| 3357 | retval = -1; | |
| 3358 | goto fail; | |
| 3359 | } | |
| e609e586 | 3360 | |
| 2f040f7f NC |
3361 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3362 | to ensure it will get free()d */ | |
| 3363 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3364 | sv_usepvn(temp, pv, llen); |
| 3365 | little_p = SvPVX(little); | |
| e609e586 | 3366 | } else { |
| 73ee8be2 NC |
3367 | temp = little_utf8 |
| 3368 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3369 | |
| 3370 | if (PL_encoding) { | |
| 3371 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3372 | } else { | |
| 3373 | sv_utf8_upgrade(temp); | |
| 3374 | } | |
| 3375 | if (little_utf8) { | |
| 3376 | big = temp; | |
| 3377 | big_utf8 = TRUE; | |
| 73ee8be2 | 3378 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3379 | } else { |
| 3380 | little = temp; | |
| 73ee8be2 | 3381 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3382 | } |
| e609e586 NC |
3383 | } |
| 3384 | } | |
| 73ee8be2 NC |
3385 | if (SvGAMAGIC(big)) { |
| 3386 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3387 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3388 | will trigger magic and overloading again, as will fbm_instr() | |
| 3389 | */ | |
| 59cd0e26 NC |
3390 | big = newSVpvn_flags(big_p, biglen, |
| 3391 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3392 | big_p = SvPVX(big); |
| 3393 | } | |
| e4e44778 | 3394 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3395 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3396 | warn on undef, and we've already triggered a warning with the | |
| 3397 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3398 | call some SvPV to trigger overloading early and find out if the | |
| 3399 | string is UTF-8. | |
| 3400 | This is all getting to messy. The API isn't quite clean enough, | |
| 3401 | because data access has side effects. | |
| 3402 | */ | |
| 59cd0e26 NC |
3403 | little = newSVpvn_flags(little_p, llen, |
| 3404 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3405 | little_p = SvPVX(little); |
| 3406 | } | |
| e609e586 | 3407 | |
| 79072805 | 3408 | if (MAXARG < 3) |
| 2723d216 | 3409 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3410 | else { |
| ad66a58c | 3411 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3412 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3413 | if (!is_index) |
| 3414 | offset += llen; | |
| a0ed51b3 | 3415 | } |
| 79072805 LW |
3416 | if (offset < 0) |
| 3417 | offset = 0; | |
| ad66a58c NC |
3418 | else if (offset > (I32)biglen) |
| 3419 | offset = biglen; | |
| 73ee8be2 NC |
3420 | if (!(little_p = is_index |
| 3421 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3422 | (unsigned char*)big_p + biglen, little, 0) | |
| 3423 | : rninstr(big_p, big_p + offset, | |
| 3424 | little_p, little_p + llen))) | |
| a0ed51b3 | 3425 | retval = -1; |
| ad66a58c | 3426 | else { |
| 73ee8be2 | 3427 | retval = little_p - big_p; |
| ad66a58c NC |
3428 | if (retval > 0 && big_utf8) |
| 3429 | sv_pos_b2u(big, &retval); | |
| 3430 | } | |
| ef8d46e8 | 3431 | SvREFCNT_dec(temp); |
| 2723d216 | 3432 | fail: |
| a0ed51b3 | 3433 | PUSHi(retval + arybase); |
| 79072805 LW |
3434 | RETURN; |
| 3435 | } | |
| 3436 | ||
| 3437 | PP(pp_sprintf) | |
| 3438 | { | |
| 97aff369 | 3439 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3440 | if (SvTAINTED(MARK[1])) |
| 3441 | TAINT_PROPER("sprintf"); | |
| 3e6bd4bf | 3442 | SvTAINTED_off(TARG); |
| 79072805 | 3443 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3444 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3445 | SP = ORIGMARK; |
| 3446 | PUSHTARG; | |
| 3447 | RETURN; | |
| 3448 | } | |
| 3449 | ||
| 79072805 LW |
3450 | PP(pp_ord) |
| 3451 | { | |
| 97aff369 | 3452 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3453 | |
| 7df053ec | 3454 | SV *argsv = POPs; |
| ba210ebe | 3455 | STRLEN len; |
| 349d4f2f | 3456 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3457 | |
| 799ef3cb | 3458 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3459 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3460 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3461 | argsv = tmpsv; |
| 3462 | } | |
| 79072805 | 3463 | |
| 872c91ae | 3464 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3465 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 5fc32dea | 3466 | (UV)(*s & 0xff)); |
| 68795e93 | 3467 | |
| 79072805 LW |
3468 | RETURN; |
| 3469 | } | |
| 3470 | ||
| 463ee0b2 LW |
3471 | PP(pp_chr) |
| 3472 | { | |
| 97aff369 | 3473 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3474 | char *tmps; |
| 8a064bd6 JH |
3475 | UV value; |
| 3476 | ||
| 3477 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3478 | || | |
| 3479 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3480 | if (IN_BYTES) { | |
| 3481 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3482 | } else { | |
| 3483 | (void) POPs; /* Ignore the argument value. */ | |
| 3484 | value = UNICODE_REPLACEMENT; | |
| 3485 | } | |
| 3486 | } else { | |
| 3487 | value = POPu; | |
| 3488 | } | |
| 463ee0b2 | 3489 | |
| 862a34c6 | 3490 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3491 | |
| 0064a8a9 | 3492 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3493 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3494 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3495 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3496 | *tmps = '\0'; |
| 3497 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3498 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3499 | XPUSHs(TARG); |
| 3500 | RETURN; | |
| 3501 | } | |
| 3502 | ||
| 748a9306 | 3503 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3504 | SvCUR_set(TARG, 1); |
| 3505 | tmps = SvPVX(TARG); | |
| eb160463 | 3506 | *tmps++ = (char)value; |
| 748a9306 | 3507 | *tmps = '\0'; |
| a0d0e21e | 3508 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3509 | |
| 88632417 | 3510 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3511 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3512 | tmps = SvPVX(TARG); |
| 3513 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 TS |
3514 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3515 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3516 | tmps = SvPVX(TARG); |
| 4c5ed6e2 TS |
3517 | SvCUR_set(TARG, 1); |
| 3518 | *tmps++ = (char)value; | |
| 88632417 | 3519 | *tmps = '\0'; |
| 4c5ed6e2 | 3520 | SvUTF8_off(TARG); |
| 88632417 JH |
3521 | } |
| 3522 | } | |
| 4c5ed6e2 | 3523 | |
| 463ee0b2 LW |
3524 | XPUSHs(TARG); |
| 3525 | RETURN; | |
| 3526 | } | |
| 3527 | ||
| 79072805 LW |
3528 | PP(pp_crypt) |
| 3529 | { | |
| 79072805 | 3530 | #ifdef HAS_CRYPT |
| 97aff369 | 3531 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3532 | dPOPTOPssrl; |
| 85c16d83 | 3533 | STRLEN len; |
| 10516c54 | 3534 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3535 | |
| 85c16d83 | 3536 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3537 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3538 | * If not possible, croak. |
| 3539 | * Yes, we made this up. */ | |
| 1b6737cc | 3540 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3541 | |
| f2791508 | 3542 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3543 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3544 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3545 | } |
| 05404ffe JH |
3546 | # ifdef USE_ITHREADS |
| 3547 | # ifdef HAS_CRYPT_R | |
| 3548 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3549 | /* This should be threadsafe because in ithreads there is only | |
| 3550 | * one thread per interpreter. If this would not be true, | |
| 3551 | * we would need a mutex to protect this malloc. */ | |
| 3552 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3553 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3554 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3555 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3556 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3557 | /* work around glibc-2.2.5 bug */ | |
| 3558 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3559 | } | |
| 05404ffe | 3560 | #endif |
| 6ab58e4d | 3561 | } |
| 05404ffe JH |
3562 | # endif /* HAS_CRYPT_R */ |
| 3563 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3564 | # ifdef FCRYPT |
| 83003860 | 3565 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3566 | # else |
| 83003860 | 3567 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3568 | # endif |
| ec93b65f | 3569 | SETTARG; |
| 4808266b | 3570 | RETURN; |
| 79072805 | 3571 | #else |
| b13b2135 | 3572 | DIE(aTHX_ |
| 79072805 | 3573 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 9e95c635 | 3574 | return NORMAL; |
| 79072805 | 3575 | #endif |
| 79072805 LW |
3576 | } |
| 3577 | ||
| 00f254e2 KW |
3578 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
| 3579 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
| 3580 | ||
| 3581 | /* Both the characters below can be stored in two UTF-8 bytes. In UTF-8 the max | |
| 3582 | * character that 2 bytes can hold is U+07FF, and in UTF-EBCDIC it is U+03FF. | |
| 3583 | * See http://www.unicode.org/unicode/reports/tr16 */ | |
| 3584 | #define LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS 0x0178 /* Also is title case */ | |
| 3585 | #define GREEK_CAPITAL_LETTER_MU 0x039C /* Upper and title case of MICRON */ | |
| 3586 | ||
| 3587 | /* Below are several macros that generate code */ | |
| 3588 | /* Generates code to store a unicode codepoint c that is known to occupy | |
| 3589 | * exactly two UTF-8 and UTF-EBCDIC bytes; it is stored into p and p+1. */ | |
| 3590 | #define STORE_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
| 3591 | STMT_START { \ | |
| 3592 | *(p) = UTF8_TWO_BYTE_HI(c); \ | |
| 3593 | *((p)+1) = UTF8_TWO_BYTE_LO(c); \ | |
| 3594 | } STMT_END | |
| 3595 | ||
| 3596 | /* Like STORE_UNI_TO_UTF8_TWO_BYTE, but advances p to point to the next | |
| 3597 | * available byte after the two bytes */ | |
| 3598 | #define CAT_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
| 3599 | STMT_START { \ | |
| 3600 | *(p)++ = UTF8_TWO_BYTE_HI(c); \ | |
| 3601 | *((p)++) = UTF8_TWO_BYTE_LO(c); \ | |
| 3602 | } STMT_END | |
| 3603 | ||
| 3604 | /* Generates code to store the upper case of latin1 character l which is known | |
| 3605 | * to have its upper case be non-latin1 into the two bytes p and p+1. There | |
| 3606 | * are only two characters that fit this description, and this macro knows | |
| 3607 | * about them, and that the upper case values fit into two UTF-8 or UTF-EBCDIC | |
| 3608 | * bytes */ | |
| 3609 | #define STORE_NON_LATIN1_UC(p, l) \ | |
| 3610 | STMT_START { \ | |
| 3611 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3612 | STORE_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
| 3613 | } else { /* Must be the following letter */ \ | |
| 3614 | STORE_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
| 3615 | } \ | |
| 3616 | } STMT_END | |
| 3617 | ||
| 3618 | /* Like STORE_NON_LATIN1_UC, but advances p to point to the next available byte | |
| 3619 | * after the character stored */ | |
| 3620 | #define CAT_NON_LATIN1_UC(p, l) \ | |
| 3621 | STMT_START { \ | |
| 3622 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3623 | CAT_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
| 3624 | } else { \ | |
| 3625 | CAT_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
| 3626 | } \ | |
| 3627 | } STMT_END | |
| 3628 | ||
| 3629 | /* Generates code to add the two UTF-8 bytes (probably u) that are the upper | |
| 3630 | * case of l into p and p+1. u must be the result of toUPPER_LATIN1_MOD(l), | |
| 3631 | * and must require two bytes to store it. Advances p to point to the next | |
| 3632 | * available position */ | |
| 3633 | #define CAT_TWO_BYTE_UNI_UPPER_MOD(p, l, u) \ | |
| 3634 | STMT_START { \ | |
| 3635 | if ((u) != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3636 | CAT_UNI_TO_UTF8_TWO_BYTE((p), (u)); /* not special, just save it */ \ | |
| 3637 | } else if (l == LATIN_SMALL_LETTER_SHARP_S) { \ | |
| 3638 | *(p)++ = 'S'; *(p)++ = 'S'; /* upper case is 'SS' */ \ | |
| 3639 | } else {/* else is one of the other two special cases */ \ | |
| 3640 | CAT_NON_LATIN1_UC((p), (l)); \ | |
| 3641 | } \ | |
| 3642 | } STMT_END | |
| 3643 | ||
| 79072805 LW |
3644 | PP(pp_ucfirst) |
| 3645 | { | |
| 00f254e2 KW |
3646 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
| 3647 | * changes. This means that possibly we can change in-place, ie., just | |
| 3648 | * take the source and change that one character and store it back, but not | |
| 3649 | * if read-only etc, or if the length changes */ | |
| 3650 | ||
| 97aff369 | 3651 | dVAR; |
| 39644a26 | 3652 | dSP; |
| d54190f6 | 3653 | SV *source = TOPs; |
| 00f254e2 | 3654 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
| d54190f6 NC |
3655 | STRLEN need; |
| 3656 | SV *dest; | |
| 00f254e2 KW |
3657 | bool inplace; /* ? Convert first char only, in-place */ |
| 3658 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
| 3659 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
| 12e9c124 | 3660 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3661 | const U8 *s; |
| 3662 | U8 *d; | |
| 3663 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 00f254e2 KW |
3664 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
| 3665 | * stored as UTF-8 at s. */ | |
| 3666 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
| 3667 | * lowercased) character stored in tmpbuf. May be either | |
| 3668 | * UTF-8 or not, but in either case is the number of bytes */ | |
| d54190f6 NC |
3669 | |
| 3670 | SvGETMAGIC(source); | |
| 3671 | if (SvOK(source)) { | |
| 3672 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3673 | } else { | |
| 0a0ffbce RGS |
3674 | if (ckWARN(WARN_UNINITIALIZED)) |
| 3675 | report_uninit(source); | |
| 1eced8f8 | 3676 | s = (const U8*)""; |
| d54190f6 NC |
3677 | slen = 0; |
| 3678 | } | |
| a0ed51b3 | 3679 | |
| 00f254e2 KW |
3680 | /* We may be able to get away with changing only the first character, in |
| 3681 | * place, but not if read-only, etc. Later we may discover more reasons to | |
| 3682 | * not convert in-place. */ | |
| 3683 | inplace = SvPADTMP(source) && !SvREADONLY(source) && SvTEMP(source); | |
| 3684 | ||
| 3685 | /* First calculate what the changed first character should be. This affects | |
| 3686 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
| 3687 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
| 3688 | ||
| 3689 | if (! slen) { /* If empty */ | |
| 3690 | need = 1; /* still need a trailing NUL */ | |
| 3691 | } | |
| 3692 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
| d54190f6 | 3693 | doing_utf8 = TRUE; |
| 00f254e2 KW |
3694 | |
| 3695 | /* TODO: This is #ifdefd out because it has hard-coded the standard mappings, | |
| 3696 | * and doesn't allow for the user to specify their own. When code is added to | |
| 3697 | * detect if there is a user-defined mapping in force here, and if so to use | |
| 3698 | * that, then the code below can be compiled. The detection would be a good | |
| 3699 | * thing anyway, as currently the user-defined mappings only work on utf8 | |
| 3700 | * strings, and thus depend on the chosen internal storage method, which is a | |
| 3701 | * bad thing */ | |
| 3702 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 3703 | if (UTF8_IS_INVARIANT(*s)) { | |
| 3704 | ||
| 3705 | /* An invariant source character is either ASCII or, in EBCDIC, an | |
| 3706 | * ASCII equivalent or a caseless C1 control. In both these cases, | |
| 3707 | * the lower and upper cases of any character are also invariants | |
| 3708 | * (and title case is the same as upper case). So it is safe to | |
| 3709 | * use the simple case change macros which avoid the overhead of | |
| 3710 | * the general functions. Note that if perl were to be extended to | |
| 3711 | * do locale handling in UTF-8 strings, this wouldn't be true in, | |
| 3712 | * for example, Lithuanian or Turkic. */ | |
| 3713 | *tmpbuf = (op_type == OP_LCFIRST) ? toLOWER(*s) : toUPPER(*s); | |
| 3714 | tculen = ulen = 1; | |
| 3715 | need = slen + 1; | |
| 12e9c124 | 3716 | } |
| 00f254e2 KW |
3717 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { |
| 3718 | U8 chr; | |
| 3719 | ||
| 3720 | /* Similarly, if the source character isn't invariant but is in the | |
| 3721 | * latin1 range (or EBCDIC equivalent thereof), we have the case | |
| 3722 | * changes compiled into perl, and can avoid the overhead of the | |
| 3723 | * general functions. In this range, the characters are stored as | |
| 3724 | * two UTF-8 bytes, and it so happens that any changed-case version | |
| 3725 | * is also two bytes (in both ASCIIish and EBCDIC machines). */ | |
| 3726 | tculen = ulen = 2; | |
| 3727 | need = slen + 1; | |
| 3728 | ||
| 3729 | /* Convert the two source bytes to a single Unicode code point | |
| 3730 | * value, change case and save for below */ | |
| 3731 | chr = UTF8_ACCUMULATE(*s, *(s+1)); | |
| 3732 | if (op_type == OP_LCFIRST) { /* lower casing is easy */ | |
| 3733 | U8 lower = toLOWER_LATIN1(chr); | |
| 3734 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, lower); | |
| 3735 | } | |
| 3736 | else { /* ucfirst */ | |
| 3737 | U8 upper = toUPPER_LATIN1_MOD(chr); | |
| 3738 | ||
| 3739 | /* Most of the latin1 range characters are well-behaved. Their | |
| 3740 | * title and upper cases are the same, and are also in the | |
| 3741 | * latin1 range. The macro above returns their upper (hence | |
| 3742 | * title) case, and all that need be done is to save the result | |
| 3743 | * for below. However, several characters are problematic, and | |
| 3744 | * have to be handled specially. The MOD in the macro name | |
| 3745 | * above means that these tricky characters all get mapped to | |
| 3746 | * the single character LATIN_SMALL_LETTER_Y_WITH_DIAERESIS. | |
| 3747 | * This mapping saves some tests for the majority of the | |
| 3748 | * characters */ | |
| 3749 | ||
| 3750 | if (upper != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { | |
| 3751 | ||
| 3752 | /* Not tricky. Just save it. */ | |
| 3753 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, upper); | |
| 3754 | } | |
| 3755 | else if (chr == LATIN_SMALL_LETTER_SHARP_S) { | |
| 3756 | ||
| 3757 | /* This one is tricky because it is two characters long, | |
| 3758 | * though the UTF-8 is still two bytes, so the stored | |
| 3759 | * length doesn't change */ | |
| 3760 | *tmpbuf = 'S'; /* The UTF-8 is 'Ss' */ | |
| 3761 | *(tmpbuf + 1) = 's'; | |
| 3762 | } | |
| 3763 | else { | |
| 3764 | ||
| 3765 | /* The other two have their title and upper cases the same, | |
| 3766 | * but are tricky because the changed-case characters | |
| 3767 | * aren't in the latin1 range. They, however, do fit into | |
| 3768 | * two UTF-8 bytes */ | |
| 3769 | STORE_NON_LATIN1_UC(tmpbuf, chr); | |
| 3770 | } | |
| 3771 | } | |
| 3772 | } | |
| 3773 | else { | |
| 3774 | #endif /* end of dont want to break user-defined casing */ | |
| 3775 | ||
| 3776 | /* Here, can't short-cut the general case */ | |
| 3777 | ||
| 3778 | utf8_to_uvchr(s, &ulen); | |
| 3779 | if (op_type == OP_UCFIRST) toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3780 | else toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3781 | ||
| 3782 | /* we can't do in-place if the length changes. */ | |
| 3783 | if (ulen != tculen) inplace = FALSE; | |
| 3784 | need = slen + 1 - ulen + tculen; | |
| 3785 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 3786 | } | |
| 3787 | #endif | |
| d54190f6 | 3788 | } |
| 00f254e2 KW |
3789 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
| 3790 | * latin1 is treated as caseless. Note that a locale takes | |
| 3791 | * precedence */ | |
| 3792 | tculen = 1; /* Most characters will require one byte, but this will | |
| 3793 | * need to be overridden for the tricky ones */ | |
| 3794 | need = slen + 1; | |
| 3795 | ||
| 3796 | if (op_type == OP_LCFIRST) { | |
| d54190f6 | 3797 | |
| 00f254e2 KW |
3798 | /* lower case the first letter: no trickiness for any character */ |
| 3799 | *tmpbuf = (IN_LOCALE_RUNTIME) ? toLOWER_LC(*s) : | |
| 3800 | ((IN_UNI_8_BIT) ? toLOWER_LATIN1(*s) : toLOWER(*s)); | |
| 3801 | } | |
| 3802 | /* is ucfirst() */ | |
| 3803 | else if (IN_LOCALE_RUNTIME) { | |
| 3804 | *tmpbuf = toUPPER_LC(*s); /* This would be a bug if any locales | |
| 3805 | * have upper and title case different | |
| 3806 | */ | |
| 3807 | } | |
| 3808 | else if (! IN_UNI_8_BIT) { | |
| 3809 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
| 3810 | * on EBCDIC machines whatever the | |
| 3811 | * native function does */ | |
| 3812 | } | |
| 3813 | else { /* is ucfirst non-UTF-8, not in locale, and cased latin1 */ | |
| 3814 | *tmpbuf = toUPPER_LATIN1_MOD(*s); | |
| 3815 | ||
| 3816 | /* tmpbuf now has the correct title case for all latin1 characters | |
| 3817 | * except for the several ones that have tricky handling. All | |
| 3818 | * of these are mapped by the MOD to the letter below. */ | |
| 3819 | if (*tmpbuf == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { | |
| 3820 | ||
| 3821 | /* The length is going to change, with all three of these, so | |
| 3822 | * can't replace just the first character */ | |
| 3823 | inplace = FALSE; | |
| 3824 | ||
| 3825 | /* We use the original to distinguish between these tricky | |
| 3826 | * cases */ | |
| 3827 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
| 3828 | /* Two character title case 'Ss', but can remain non-UTF-8 */ | |
| 3829 | need = slen + 2; | |
| 3830 | *tmpbuf = 'S'; | |
| 3831 | *(tmpbuf + 1) = 's'; /* Assert: length(tmpbuf) >= 2 */ | |
| 3832 | tculen = 2; | |
| 3833 | } | |
| 3834 | else { | |
| d54190f6 | 3835 | |
| 00f254e2 KW |
3836 | /* The other two tricky ones have their title case outside |
| 3837 | * latin1. It is the same as their upper case. */ | |
| 3838 | doing_utf8 = TRUE; | |
| 3839 | STORE_NON_LATIN1_UC(tmpbuf, *s); | |
| 3840 | ||
| 3841 | /* The UTF-8 and UTF-EBCDIC lengths of both these characters | |
| 3842 | * and their upper cases is 2. */ | |
| 3843 | tculen = ulen = 2; | |
| 3844 | ||
| 3845 | /* The entire result will have to be in UTF-8. Assume worst | |
| 3846 | * case sizing in conversion. (all latin1 characters occupy | |
| 3847 | * at most two bytes in utf8) */ | |
| 3848 | convert_source_to_utf8 = TRUE; | |
| 3849 | need = slen * 2 + 1; | |
| 3850 | } | |
| 3851 | } /* End of is one of the three special chars */ | |
| 3852 | } /* End of use Unicode (Latin1) semantics */ | |
| 3853 | } /* End of changing the case of the first character */ | |
| 3854 | ||
| 3855 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
| 3856 | * generate the result */ | |
| 3857 | if (inplace) { | |
| 3858 | ||
| 3859 | /* We can convert in place. This means we change just the first | |
| 3860 | * character without disturbing the rest; no need to grow */ | |
| d54190f6 NC |
3861 | dest = source; |
| 3862 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3863 | } else { | |
| 3864 | dTARGET; | |
| 3865 | ||
| 3866 | dest = TARG; | |
| 3867 | ||
| 00f254e2 KW |
3868 | /* Here, we can't convert in place; we earlier calculated how much |
| 3869 | * space we will need, so grow to accommodate that */ | |
| d54190f6 | 3870 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 3871 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3872 | (void)SvPOK_only(dest); |
| 3873 | ||
| 3874 | SETs(dest); | |
| d54190f6 | 3875 | } |
| 44bc797b | 3876 | |
| d54190f6 | 3877 | if (doing_utf8) { |
| 00f254e2 KW |
3878 | if (! inplace) { |
| 3879 | if (! convert_source_to_utf8) { | |
| 3880 | ||
| 3881 | /* Here both source and dest are in UTF-8, but have to create | |
| 3882 | * the entire output. We initialize the result to be the | |
| 3883 | * title/lower cased first character, and then append the rest | |
| 3884 | * of the string. */ | |
| 3885 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
| 3886 | if (slen > ulen) { | |
| 3887 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
| 3888 | } | |
| 3889 | } | |
| 3890 | else { | |
| 3891 | const U8 *const send = s + slen; | |
| 3892 | ||
| 3893 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
| 3894 | * except we earlier UTF-8'd the first character of the source | |
| 3895 | * into tmpbuf. First put that into dest, and then append the | |
| 3896 | * rest of the source, converting it to UTF-8 as we go. */ | |
| 3897 | ||
| 3898 | /* Assert tculen is 2 here because the only two characters that | |
| 3899 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
| 3900 | *d++ = *tmpbuf; | |
| 3901 | *d++ = *(tmpbuf + 1); | |
| 3902 | s++; /* We have just processed the 1st char */ | |
| 3903 | ||
| 3904 | for (; s < send; s++) { | |
| 3905 | d = uvchr_to_utf8(d, *s); | |
| 3906 | } | |
| 3907 | *d = '\0'; | |
| 3908 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3909 | } | |
| d54190f6 | 3910 | SvUTF8_on(dest); |
| a0ed51b3 | 3911 | } |
| 00f254e2 | 3912 | else { /* in-place UTF-8. Just overwrite the first character */ |
| d54190f6 NC |
3913 | Copy(tmpbuf, d, tculen, U8); |
| 3914 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3915 | } |
| a0ed51b3 | 3916 | } |
| 00f254e2 KW |
3917 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
| 3918 | if (slen) { | |
| 2de3dbcc | 3919 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3920 | TAINT; |
| d54190f6 | 3921 | SvTAINTED_on(dest); |
| 31351b04 | 3922 | } |
| 00f254e2 KW |
3923 | if (inplace) { /* in-place, only need to change the 1st char */ |
| 3924 | *d = *tmpbuf; | |
| 3925 | } | |
| 3926 | else { /* Not in-place */ | |
| 3927 | ||
| 3928 | /* Copy the case-changed character(s) from tmpbuf */ | |
| 3929 | Copy(tmpbuf, d, tculen, U8); | |
| 3930 | d += tculen - 1; /* Code below expects d to point to final | |
| 3931 | * character stored */ | |
| 3932 | } | |
| 3933 | } | |
| 3934 | else { /* empty source */ | |
| 3935 | /* See bug #39028: Don't taint if empty */ | |
| d54190f6 NC |
3936 | *d = *s; |
| 3937 | } | |
| 3938 | ||
| 00f254e2 KW |
3939 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
| 3940 | * the destination to retain that flag */ | |
| d54190f6 NC |
3941 | if (SvUTF8(source)) |
| 3942 | SvUTF8_on(dest); | |
| 3943 | ||
| 00f254e2 | 3944 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
| d54190f6 NC |
3945 | /* This will copy the trailing NUL */ |
| 3946 | Copy(s + 1, d + 1, slen, U8); | |
| 3947 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3948 | } |
| bbce6d69 | 3949 | } |
| d54190f6 | 3950 | SvSETMAGIC(dest); |
| 79072805 LW |
3951 | RETURN; |
| 3952 | } | |
| 3953 | ||
| 67306194 NC |
3954 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3955 | it would be worth merging the two, and just having a switch outside each | |
| 00f254e2 | 3956 | of the three tight loops. There is less and less commonality though */ |
| 79072805 LW |
3957 | PP(pp_uc) |
| 3958 | { | |
| 97aff369 | 3959 | dVAR; |
| 39644a26 | 3960 | dSP; |
| 67306194 | 3961 | SV *source = TOPs; |
| 463ee0b2 | 3962 | STRLEN len; |
| 67306194 NC |
3963 | STRLEN min; |
| 3964 | SV *dest; | |
| 3965 | const U8 *s; | |
| 3966 | U8 *d; | |
| 79072805 | 3967 | |
| 67306194 NC |
3968 | SvGETMAGIC(source); |
| 3969 | ||
| 3970 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 00f254e2 KW |
3971 | && SvTEMP(source) && !DO_UTF8(source) |
| 3972 | && (IN_LOCALE_RUNTIME || ! IN_UNI_8_BIT)) { | |
| 3973 | ||
| 3974 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
| 3975 | * make the loop tight, so we overwrite the source with the dest before | |
| 3976 | * looking at it, and we need to look at the original source | |
| 3977 | * afterwards. There would also need to be code added to handle | |
| 3978 | * switching to not in-place in midstream if we run into characters | |
| 3979 | * that change the length. | |
| 3980 | */ | |
| 67306194 NC |
3981 | dest = source; |
| 3982 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3983 | min = len + 1; | |
| 3984 | } else { | |
| a0ed51b3 | 3985 | dTARGET; |
| a0ed51b3 | 3986 | |
| 67306194 | 3987 | dest = TARG; |
| 128c9517 | 3988 | |
| 67306194 NC |
3989 | /* The old implementation would copy source into TARG at this point. |
| 3990 | This had the side effect that if source was undef, TARG was now | |
| 3991 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3992 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3993 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3994 | little games. */ | |
| 3995 | ||
| 3996 | if (SvOK(source)) { | |
| 3997 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3998 | } else { | |
| 0a0ffbce RGS |
3999 | if (ckWARN(WARN_UNINITIALIZED)) |
| 4000 | report_uninit(source); | |
| 1eced8f8 | 4001 | s = (const U8*)""; |
| 67306194 | 4002 | len = 0; |
| a0ed51b3 | 4003 | } |
| 67306194 NC |
4004 | min = len + 1; |
| 4005 | ||
| 4006 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 4007 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
4008 | (void)SvPOK_only(dest); |
| 4009 | ||
| 4010 | SETs(dest); | |
| a0ed51b3 | 4011 | } |
| 31351b04 | 4012 | |
| 67306194 NC |
4013 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 4014 | to check DO_UTF8 again here. */ | |
| 4015 | ||
| 4016 | if (DO_UTF8(source)) { | |
| 4017 | const U8 *const send = s + len; | |
| 4018 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 4019 | ||
| 00f254e2 KW |
4020 | /* This is ifdefd out because it needs more work and thought. It isn't clear |
| 4021 | * that we should do it. These are hard-coded rules from the Unicode standard, | |
| 4022 | * and may change. 5.2 gives new guidance on the iota subscript, for example, | |
| 4023 | * which has not been checked against this; and secondly it may be that we are | |
| 4024 | * passed a subset of the context, via a \U...\E, for example, and its not | |
| 4025 | * clear what the best approach is to that */ | |
| 4026 | #ifdef CONTEXT_DEPENDENT_CASING | |
| 4027 | bool in_iota_subscript = FALSE; | |
| 4028 | #endif | |
| 4029 | ||
| 67306194 | 4030 | while (s < send) { |
| 00f254e2 KW |
4031 | #ifdef CONTEXT_DEPENDENT_CASING |
| 4032 | if (in_iota_subscript && ! is_utf8_mark(s)) { | |
| 4033 | /* A non-mark. Time to output the iota subscript */ | |
| 4034 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 | |
| 4035 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
| 4036 | ||
| 4037 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
| 4038 | in_iota_subscript = FALSE; | |
| 4039 | } | |
| 4040 | #endif | |
| 4041 | ||
| 4042 | ||
| 4043 | /* See comments at the first instance in this file of this ifdef */ | |
| 4044 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 67306194 | 4045 | |
| 00f254e2 KW |
4046 | /* If the UTF-8 character is invariant, then it is in the range |
| 4047 | * known by the standard macro; result is only one byte long */ | |
| 4048 | if (UTF8_IS_INVARIANT(*s)) { | |
| 4049 | *d++ = toUPPER(*s); | |
| 4050 | s++; | |
| 4051 | } | |
| 4052 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
| 4053 | ||
| 4054 | /* Likewise, if it fits in a byte, its case change is in our | |
| 4055 | * table */ | |
| 4056 | U8 orig = UTF8_ACCUMULATE(*s, *(s+1)); | |
| 4057 | U8 upper = toUPPER_LATIN1_MOD(orig); | |
| 4058 | CAT_TWO_BYTE_UNI_UPPER_MOD(d, orig, upper); | |
| 4059 | s += 2; | |
| 4060 | } | |
| 4061 | else { | |
| 4062 | #else | |
| 4063 | { | |
| 4064 | #endif | |
| 4065 | ||
| 4066 | /* Otherwise, need the general UTF-8 case. Get the changed | |
| 4067 | * case value and copy it to the output buffer */ | |
| 4068 | ||
| 4069 | const STRLEN u = UTF8SKIP(s); | |
| 4070 | STRLEN ulen; | |
| 67306194 | 4071 | |
| 00f254e2 KW |
4072 | #ifndef CONTEXT_DEPENDENT_CASING |
| 4073 | toUPPER_utf8(s, tmpbuf, &ulen); | |
| 4074 | #else | |
| 4075 | const UV uv = toUPPER_utf8(s, tmpbuf, &ulen); | |
| 4076 | if (uv == GREEK_CAPITAL_LETTER_IOTA && utf8_to_uvchr(s, 0) == COMBINING_GREEK_YPOGEGRAMMENI) { | |
| 4077 | in_iota_subscript = TRUE; | |
| 4078 | } | |
| 4079 | else { | |
| 4080 | #endif | |
| 4081 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 4082 | /* If the eventually required minimum size outgrows | |
| 4083 | * the available space, we need to grow. */ | |
| 4084 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 4085 | ||
| 4086 | /* If someone uppercases one million U+03B0s we | |
| 4087 | * SvGROW() one million times. Or we could try | |
| 4088 | * guessing how much to allocate without allocating too | |
| 4089 | * much. Such is life. See corresponding comment in lc code | |
| 4090 | * for another option */ | |
| 4091 | SvGROW(dest, min); | |
| 4092 | d = (U8*)SvPVX(dest) + o; | |
| 4093 | } | |
| 4094 | Copy(tmpbuf, d, ulen, U8); | |
| 4095 | d += ulen; | |
| 4096 | #ifdef CONTEXT_DEPENDENT_CASING | |
| 4097 | } | |
| 4098 | #endif | |
| 4099 | s += u; | |
| 67306194 | 4100 | } |
| 67306194 | 4101 | } |
| 00f254e2 KW |
4102 | #ifdef CONTEXT_DEPENDENT_CASING |
| 4103 | if (in_iota_subscript) CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
| 4104 | #endif | |
| 67306194 NC |
4105 | SvUTF8_on(dest); |
| 4106 | *d = '\0'; | |
| 4107 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 00f254e2 | 4108 | } else { /* Not UTF-8 */ |
| 67306194 NC |
4109 | if (len) { |
| 4110 | const U8 *const send = s + len; | |
| 00f254e2 KW |
4111 | |
| 4112 | /* Use locale casing if in locale; regular style if not treating | |
| 4113 | * latin1 as having case; otherwise the latin1 casing. Do the | |
| 4114 | * whole thing in a tight loop, for speed, */ | |
| 2de3dbcc | 4115 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 4116 | TAINT; |
| 67306194 NC |
4117 | SvTAINTED_on(dest); |
| 4118 | for (; s < send; d++, s++) | |
| 4119 | *d = toUPPER_LC(*s); | |
| 31351b04 | 4120 | } |
| 00f254e2 KW |
4121 | else if (! IN_UNI_8_BIT) { |
| 4122 | for (; s < send; d++, s++) { | |
| 67306194 | 4123 | *d = toUPPER(*s); |
| 00f254e2 | 4124 | } |
| 31351b04 | 4125 | } |
| 00f254e2 KW |
4126 | else { |
| 4127 | for (; s < send; d++, s++) { | |
| 4128 | *d = toUPPER_LATIN1_MOD(*s); | |
| 4129 | if (*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) continue; | |
| 4130 | ||
| 4131 | /* The mainstream case is the tight loop above. To avoid | |
| 4132 | * extra tests in that, all three characters that require | |
| 4133 | * special handling are mapped by the MOD to the one tested | |
| 4134 | * just above. | |
| 4135 | * Use the source to distinguish between the three cases */ | |
| 4136 | ||
| 4137 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
| 4138 | ||
| 4139 | /* uc() of this requires 2 characters, but they are | |
| 4140 | * ASCII. If not enough room, grow the string */ | |
| 4141 | if (SvLEN(dest) < ++min) { | |
| 4142 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 4143 | SvGROW(dest, min); | |
| 4144 | d = (U8*)SvPVX(dest) + o; | |
| 4145 | } | |
| 4146 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
| 4147 | continue; /* Back to the tight loop; still in ASCII */ | |
| 4148 | } | |
| 4149 | ||
| 4150 | /* The other two special handling characters have their | |
| 4151 | * upper cases outside the latin1 range, hence need to be | |
| 4152 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
| 4153 | * here we are somewhere in the middle of processing a | |
| 4154 | * non-UTF-8 string, and realize that we will have to convert | |
| 4155 | * the whole thing to UTF-8. What to do? There are | |
| 4156 | * several possibilities. The simplest to code is to | |
| 4157 | * convert what we have so far, set a flag, and continue on | |
| 4158 | * in the loop. The flag would be tested each time through | |
| 4159 | * the loop, and if set, the next character would be | |
| 4160 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
| 4161 | * to slow down the mainstream case at all for this fairly | |
| 4162 | * rare case, so I didn't want to add a test that didn't | |
| 4163 | * absolutely have to be there in the loop, besides the | |
| 4164 | * possibility that it would get too complicated for | |
| 4165 | * optimizers to deal with. Another possibility is to just | |
| 4166 | * give up, convert the source to UTF-8, and restart the | |
| 4167 | * function that way. Another possibility is to convert | |
| 4168 | * both what has already been processed and what is yet to | |
| 4169 | * come separately to UTF-8, then jump into the loop that | |
| 4170 | * handles UTF-8. But the most efficient time-wise of the | |
| 4171 | * ones I could think of is what follows, and turned out to | |
| 4172 | * not require much extra code. */ | |
| 4173 | ||
| 4174 | /* Convert what we have so far into UTF-8, telling the | |
| 4175 | * function that we know it should be converted, and to | |
| 4176 | * allow extra space for what we haven't processed yet. | |
| 4177 | * Assume the worst case space requirements for converting | |
| 4178 | * what we haven't processed so far: that it will require | |
| 4179 | * two bytes for each remaining source character, plus the | |
| 4180 | * NUL at the end. This may cause the string pointer to | |
| 4181 | * move, so re-find it. */ | |
| 4182 | ||
| 4183 | len = d - (U8*)SvPVX_const(dest); | |
| 4184 | SvCUR_set(dest, len); | |
| 4185 | len = sv_utf8_upgrade_flags_grow(dest, | |
| 4186 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
| 4187 | (send -s) * 2 + 1); | |
| 4188 | d = (U8*)SvPVX(dest) + len; | |
| 4189 | ||
| 4190 | /* And append the current character's upper case in UTF-8 */ | |
| 4191 | CAT_NON_LATIN1_UC(d, *s); | |
| 4192 | ||
| 4193 | /* Now process the remainder of the source, converting to | |
| 4194 | * upper and UTF-8. If a resulting byte is invariant in | |
| 4195 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
| 4196 | * append it to the output. */ | |
| 4197 | ||
| 4198 | s++; | |
| 4199 | for (; s < send; s++) { | |
| 4200 | U8 upper = toUPPER_LATIN1_MOD(*s); | |
| 4201 | if UTF8_IS_INVARIANT(upper) { | |
| 4202 | *d++ = upper; | |
| 4203 | } | |
| 4204 | else { | |
| 4205 | CAT_TWO_BYTE_UNI_UPPER_MOD(d, *s, upper); | |
| 4206 | } | |
| 4207 | } | |
| 4208 | ||
| 4209 | /* Here have processed the whole source; no need to continue | |
| 4210 | * with the outer loop. Each character has been converted | |
| 4211 | * to upper case and converted to UTF-8 */ | |
| 4212 | ||
| 4213 | break; | |
| 4214 | } /* End of processing all latin1-style chars */ | |
| 4215 | } /* End of processing all chars */ | |
| 4216 | } /* End of source is not empty */ | |
| 4217 | ||
| 67306194 | 4218 | if (source != dest) { |
| 00f254e2 | 4219 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
| 67306194 NC |
4220 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
| 4221 | } | |
| 00f254e2 | 4222 | } /* End of isn't utf8 */ |
| 67306194 | 4223 | SvSETMAGIC(dest); |
| 79072805 LW |
4224 | RETURN; |
| 4225 | } | |
| 4226 | ||
| 4227 | PP(pp_lc) | |
| 4228 | { | |
| 97aff369 | 4229 | dVAR; |
| 39644a26 | 4230 | dSP; |
| ec9af7d4 | 4231 | SV *source = TOPs; |
| 463ee0b2 | 4232 | STRLEN len; |
| ec9af7d4 NC |
4233 | STRLEN min; |
| 4234 | SV *dest; | |
| 4235 | const U8 *s; | |
| 4236 | U8 *d; | |
| 79072805 | 4237 | |
| ec9af7d4 NC |
4238 | SvGETMAGIC(source); |
| 4239 | ||
| 4240 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 17fa0776 | 4241 | && SvTEMP(source) && !DO_UTF8(source)) { |
| ec9af7d4 | 4242 | |
| 00f254e2 KW |
4243 | /* We can convert in place, as lowercasing anything in the latin1 range |
| 4244 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
| ec9af7d4 NC |
4245 | dest = source; |
| 4246 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 4247 | min = len + 1; | |
| 4248 | } else { | |
| a0ed51b3 | 4249 | dTARGET; |
| a0ed51b3 | 4250 | |
| ec9af7d4 NC |
4251 | dest = TARG; |
| 4252 | ||
| 4253 | /* The old implementation would copy source into TARG at this point. | |
| 4254 | This had the side effect that if source was undef, TARG was now | |
| 4255 | an undefined SV with PADTMP set, and they don't warn inside | |
| 4256 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 4257 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 4258 | little games. */ | |
| 4259 | ||
| 4260 | if (SvOK(source)) { | |
| 4261 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 4262 | } else { | |
| 0a0ffbce RGS |
4263 | if (ckWARN(WARN_UNINITIALIZED)) |
| 4264 | report_uninit(source); | |
| 1eced8f8 | 4265 | s = (const U8*)""; |
| ec9af7d4 | 4266 | len = 0; |
| a0ed51b3 | 4267 | } |
| ec9af7d4 | 4268 | min = len + 1; |
| 128c9517 | 4269 | |
| ec9af7d4 | 4270 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 4271 | d = (U8*)SvGROW(dest, min); |
| ec9af7d4 NC |
4272 | (void)SvPOK_only(dest); |
| 4273 | ||
| 4274 | SETs(dest); | |
| 4275 | } | |
| 4276 | ||
| 4277 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
| 4278 | to check DO_UTF8 again here. */ | |
| 4279 | ||
| 4280 | if (DO_UTF8(source)) { | |
| 4281 | const U8 *const send = s + len; | |
| 4282 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 4283 | ||
| 4284 | while (s < send) { | |
| 00f254e2 KW |
4285 | /* See comments at the first instance in this file of this ifdef */ |
| 4286 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 4287 | if (UTF8_IS_INVARIANT(*s)) { | |
| 89ebb4a3 | 4288 | |
| 00f254e2 | 4289 | /* Invariant characters use the standard mappings compiled in. |
| ec9af7d4 | 4290 | */ |
| 00f254e2 KW |
4291 | *d++ = toLOWER(*s); |
| 4292 | s++; | |
| ec9af7d4 | 4293 | } |
| 00f254e2 | 4294 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { |
| 89ebb4a3 | 4295 | |
| 00f254e2 KW |
4296 | /* As do the ones in the Latin1 range */ |
| 4297 | U8 lower = toLOWER_LATIN1(UTF8_ACCUMULATE(*s, *(s+1))); | |
| 4298 | CAT_UNI_TO_UTF8_TWO_BYTE(d, lower); | |
| 4299 | s += 2; | |
| a0ed51b3 | 4300 | } |
| 00f254e2 KW |
4301 | else { |
| 4302 | #endif | |
| 4303 | /* Here, is utf8 not in Latin-1 range, have to go out and get | |
| 4304 | * the mappings from the tables. */ | |
| 4305 | ||
| 4306 | const STRLEN u = UTF8SKIP(s); | |
| 4307 | STRLEN ulen; | |
| 4308 | ||
| 4309 | /* See comments at the first instance in this file of this ifdef */ | |
| 4310 | #ifndef CONTEXT_DEPENDENT_CASING | |
| 4311 | toLOWER_utf8(s, tmpbuf, &ulen); | |
| 4312 | #else | |
| 4313 | /* Here is context dependent casing, not compiled in currently; | |
| 4314 | * needs more thought and work */ | |
| 4315 | ||
| 4316 | const UV uv = toLOWER_utf8(s, tmpbuf, &ulen); | |
| 4317 | ||
| 4318 | /* If the lower case is a small sigma, it may be that we need | |
| 4319 | * to change it to a final sigma. This happens at the end of | |
| 4320 | * a word that contains more than just this character, and only | |
| 4321 | * when we started with a capital sigma. */ | |
| 4322 | if (uv == UNICODE_GREEK_SMALL_LETTER_SIGMA && | |
| 4323 | s > send - len && /* Makes sure not the first letter */ | |
| 4324 | utf8_to_uvchr(s, 0) == UNICODE_GREEK_CAPITAL_LETTER_SIGMA | |
| 4325 | ) { | |
| 4326 | ||
| 4327 | /* We use the algorithm in: | |
| 4328 | * http://www.unicode.org/versions/Unicode5.0.0/ch03.pdf (C | |
| 4329 | * is a CAPITAL SIGMA): If C is preceded by a sequence | |
| 4330 | * consisting of a cased letter and a case-ignorable | |
| 4331 | * sequence, and C is not followed by a sequence consisting | |
| 4332 | * of a case ignorable sequence and then a cased letter, | |
| 4333 | * then when lowercasing C, C becomes a final sigma */ | |
| 4334 | ||
| 4335 | /* To determine if this is the end of a word, need to peek | |
| 4336 | * ahead. Look at the next character */ | |
| 4337 | const U8 *peek = s + u; | |
| 4338 | ||
| 4339 | /* Skip any case ignorable characters */ | |
| 4340 | while (peek < send && is_utf8_case_ignorable(peek)) { | |
| 4341 | peek += UTF8SKIP(peek); | |
| 4342 | } | |
| 4343 | ||
| 4344 | /* If we reached the end of the string without finding any | |
| 4345 | * non-case ignorable characters, or if the next such one | |
| 4346 | * is not-cased, then we have met the conditions for it | |
| 4347 | * being a final sigma with regards to peek ahead, and so | |
| 4348 | * must do peek behind for the remaining conditions. (We | |
| 4349 | * know there is stuff behind to look at since we tested | |
| 4350 | * above that this isn't the first letter) */ | |
| 4351 | if (peek >= send || ! is_utf8_cased(peek)) { | |
| 4352 | peek = utf8_hop(s, -1); | |
| 4353 | ||
| 4354 | /* Here are at the beginning of the first character | |
| 4355 | * before the original upper case sigma. Keep backing | |
| 4356 | * up, skipping any case ignorable characters */ | |
| 4357 | while (is_utf8_case_ignorable(peek)) { | |
| 4358 | peek = utf8_hop(peek, -1); | |
| 4359 | } | |
| 4360 | ||
| 4361 | /* Here peek points to the first byte of the closest | |
| 4362 | * non-case-ignorable character before the capital | |
| 4363 | * sigma. If it is cased, then by the Unicode | |
| 4364 | * algorithm, we should use a small final sigma instead | |
| 4365 | * of what we have */ | |
| 4366 | if (is_utf8_cased(peek)) { | |
| 4367 | STORE_UNI_TO_UTF8_TWO_BYTE(tmpbuf, | |
| 4368 | UNICODE_GREEK_SMALL_LETTER_FINAL_SIGMA); | |
| 4369 | } | |
| 4370 | } | |
| 4371 | } | |
| 4372 | else { /* Not a context sensitive mapping */ | |
| 4373 | #endif /* End of commented out context sensitive */ | |
| 4374 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 4375 | ||
| 4376 | /* If the eventually required minimum size outgrows | |
| 4377 | * the available space, we need to grow. */ | |
| 4378 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 4379 | ||
| 4380 | /* If someone lowercases one million U+0130s we | |
| 4381 | * SvGROW() one million times. Or we could try | |
| 4382 | * guessing how much to allocate without allocating too | |
| 4383 | * much. Such is life. Another option would be to | |
| 4384 | * grow an extra byte or two more each time we need to | |
| 4385 | * grow, which would cut down the million to 500K, with | |
| 4386 | * little waste */ | |
| 4387 | SvGROW(dest, min); | |
| 4388 | d = (U8*)SvPVX(dest) + o; | |
| 4389 | } | |
| 4390 | #ifdef CONTEXT_DEPENDENT_CASING | |
| 4391 | } | |
| 4392 | #endif | |
| 4393 | /* Copy the newly lowercased letter to the output buffer we're | |
| 4394 | * building */ | |
| 4395 | Copy(tmpbuf, d, ulen, U8); | |
| 4396 | d += ulen; | |
| 4397 | s += u; | |
| 4398 | #ifdef GO_AHEAD_AND_BREAK_USER_DEFINED_CASE_MAPPINGS | |
| 4399 | } | |
| 4400 | #endif | |
| 4401 | } /* End of looping through the source string */ | |
| ec9af7d4 NC |
4402 | SvUTF8_on(dest); |
| 4403 | *d = '\0'; | |
| 4404 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 00f254e2 | 4405 | } else { /* Not utf8 */ |
| 31351b04 | 4406 | if (len) { |
| ec9af7d4 | 4407 | const U8 *const send = s + len; |
| 00f254e2 KW |
4408 | |
| 4409 | /* Use locale casing if in locale; regular style if not treating | |
| 4410 | * latin1 as having case; otherwise the latin1 casing. Do the | |
| 4411 | * whole thing in a tight loop, for speed, */ | |
| 2de3dbcc | 4412 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 4413 | TAINT; |
| ec9af7d4 NC |
4414 | SvTAINTED_on(dest); |
| 4415 | for (; s < send; d++, s++) | |
| 4416 | *d = toLOWER_LC(*s); | |
| 31351b04 | 4417 | } |
| 00f254e2 KW |
4418 | else if (! IN_UNI_8_BIT) { |
| 4419 | for (; s < send; d++, s++) { | |
| ec9af7d4 | 4420 | *d = toLOWER(*s); |
| 00f254e2 KW |
4421 | } |
| 4422 | } | |
| 4423 | else { | |
| 4424 | for (; s < send; d++, s++) { | |
| 4425 | *d = toLOWER_LATIN1(*s); | |
| 4426 | } | |
| 31351b04 | 4427 | } |
| bbce6d69 | 4428 | } |
| ec9af7d4 NC |
4429 | if (source != dest) { |
| 4430 | *d = '\0'; | |
| 4431 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 4432 | } | |
| 79072805 | 4433 | } |
| ec9af7d4 | 4434 | SvSETMAGIC(dest); |
| 79072805 LW |
4435 | RETURN; |
| 4436 | } | |
| 4437 | ||
| a0d0e21e | 4438 | PP(pp_quotemeta) |
| 79072805 | 4439 | { |
| 97aff369 | 4440 | dVAR; dSP; dTARGET; |
| 1b6737cc | 4441 | SV * const sv = TOPs; |
| a0d0e21e | 4442 | STRLEN len; |
| 0d46e09a | 4443 | register const char *s = SvPV_const(sv,len); |
| 79072805 | 4444 | |
| 7e2040f0 | 4445 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 4446 | if (len) { |
| 1b6737cc | 4447 | register char *d; |
| 862a34c6 | 4448 | SvUPGRADE(TARG, SVt_PV); |
| c07a80fd | 4449 | SvGROW(TARG, (len * 2) + 1); |
| a0d0e21e | 4450 | d = SvPVX(TARG); |
| 7e2040f0 | 4451 | if (DO_UTF8(sv)) { |
| 0dd2cdef | 4452 | while (len) { |
| fd400ab9 | 4453 | if (UTF8_IS_CONTINUED(*s)) { |
| 0dd2cdef LW |
4454 | STRLEN ulen = UTF8SKIP(s); |
| 4455 | if (ulen > len) | |
| 4456 | ulen = len; | |
| 4457 | len -= ulen; | |
| 4458 | while (ulen--) | |
| 4459 | *d++ = *s++; | |
| 4460 | } | |
| 4461 | else { | |
| 4462 | if (!isALNUM(*s)) | |
| 4463 | *d++ = '\\'; | |
| 4464 | *d++ = *s++; | |
| 4465 | len--; | |
| 4466 | } | |
| 4467 | } | |
| 7e2040f0 | 4468 | SvUTF8_on(TARG); |
| 0dd2cdef LW |
4469 | } |
| 4470 | else { | |
| 4471 | while (len--) { | |
| 4472 | if (!isALNUM(*s)) | |
| 4473 | *d++ = '\\'; | |
| 4474 | *d++ = *s++; | |
| 4475 | } | |
| 79072805 | 4476 | } |
| a0d0e21e | 4477 | *d = '\0'; |
| 349d4f2f | 4478 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
| 3aa33fe5 | 4479 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 4480 | } |
| a0d0e21e LW |
4481 | else |
| 4482 | sv_setpvn(TARG, s, len); | |
| ec93b65f | 4483 | SETTARG; |
| 79072805 LW |
4484 | RETURN; |
| 4485 | } | |
| 4486 | ||
| a0d0e21e | 4487 | /* Arrays. */ |
| 79072805 | 4488 | |
| a0d0e21e | 4489 | PP(pp_aslice) |
| 79072805 | 4490 | { |
| 97aff369 | 4491 | dVAR; dSP; dMARK; dORIGMARK; |
| 502c6561 | 4492 | register AV *const av = MUTABLE_AV(POPs); |
| 1b6737cc | 4493 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
| 79072805 | 4494 | |
| a0d0e21e | 4495 | if (SvTYPE(av) == SVt_PVAV) { |
| fc15ae8f | 4496 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 4ad10a0b VP |
4497 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
| 4498 | bool can_preserve = FALSE; | |
| 4499 | ||
| 4500 | if (localizing) { | |
| 4501 | MAGIC *mg; | |
| 4502 | HV *stash; | |
| 4503 | ||
| 4504 | can_preserve = SvCANEXISTDELETE(av); | |
| 4505 | } | |
| 4506 | ||
| 4507 | if (lval && localizing) { | |
| 1b6737cc | 4508 | register SV **svp; |
| 748a9306 | 4509 | I32 max = -1; |
| 924508f0 | 4510 | for (svp = MARK + 1; svp <= SP; svp++) { |
| 4ea561bc | 4511 | const I32 elem = SvIV(*svp); |
| 748a9306 LW |
4512 | if (elem > max) |
| 4513 | max = elem; | |
| 4514 | } | |
| 4515 | if (max > AvMAX(av)) | |
| 4516 | av_extend(av, max); | |
| 4517 | } | |
| 4ad10a0b | 4518 | |
| a0d0e21e | 4519 | while (++MARK <= SP) { |
| 1b6737cc | 4520 | register SV **svp; |
| 4ea561bc | 4521 | I32 elem = SvIV(*MARK); |
| 4ad10a0b | 4522 | bool preeminent = TRUE; |
| a0d0e21e | 4523 | |
| 748a9306 LW |
4524 | if (elem > 0) |
| 4525 | elem -= arybase; | |
| 4ad10a0b VP |
4526 | if (localizing && can_preserve) { |
| 4527 | /* If we can determine whether the element exist, | |
| 4528 | * Try to preserve the existenceness of a tied array | |
| 4529 | * element by using EXISTS and DELETE if possible. | |
| 4530 | * Fallback to FETCH and STORE otherwise. */ | |
| 4531 | preeminent = av_exists(av, elem); | |
| 4532 | } | |
| 4533 | ||
| a0d0e21e LW |
4534 | svp = av_fetch(av, elem, lval); |
| 4535 | if (lval) { | |
| 3280af22 | 4536 | if (!svp || *svp == &PL_sv_undef) |
| cea2e8a9 | 4537 | DIE(aTHX_ PL_no_aelem, elem); |
| 4ad10a0b VP |
4538 | if (localizing) { |
| 4539 | if (preeminent) | |
| 4540 | save_aelem(av, elem, svp); | |
| 4541 | else | |
| 4542 | SAVEADELETE(av, elem); | |
| 4543 | } | |
| 79072805 | 4544 | } |
| 3280af22 | 4545 | *MARK = svp ? *svp : &PL_sv_undef; |
| 79072805 LW |
4546 | } |
| 4547 | } | |
| 748a9306 | 4548 | if (GIMME != G_ARRAY) { |
| a0d0e21e | 4549 | MARK = ORIGMARK; |
| 04ab2c87 | 4550 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e LW |
4551 | SP = MARK; |
| 4552 | } | |
| 79072805 LW |
4553 | RETURN; |
| 4554 | } | |
| 4555 | ||
| 878d132a NC |
4556 | PP(pp_aeach) |
| 4557 | { | |
| 4558 | dVAR; | |
| 4559 | dSP; | |
| 502c6561 | 4560 | AV *array = MUTABLE_AV(POPs); |
| 878d132a | 4561 | const I32 gimme = GIMME_V; |
| 453d94a9 | 4562 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
| 878d132a NC |
4563 | const IV current = (*iterp)++; |
| 4564 | ||
| 4565 | if (current > av_len(array)) { | |
| 4566 | *iterp = 0; | |
| 4567 | if (gimme == G_SCALAR) | |
| 4568 | RETPUSHUNDEF; | |
| 4569 | else | |
| 4570 | RETURN; | |
| 4571 | } | |
| 4572 | ||
| 4573 | EXTEND(SP, 2); | |
| 4574 | mPUSHi(CopARYBASE_get(PL_curcop) + current); | |
| 4575 | if (gimme == G_ARRAY) { | |
| 4576 | SV **const element = av_fetch(array, current, 0); | |
| 4577 | PUSHs(element ? *element : &PL_sv_undef); | |
| 4578 | } | |
| 4579 | RETURN; | |
| 4580 | } | |
| 4581 | ||
| 4582 | PP(pp_akeys) | |
| 4583 | { | |
| 4584 | dVAR; | |
| 4585 | dSP; | |
| 502c6561 | 4586 | AV *array = MUTABLE_AV(POPs); |
| 878d132a NC |
4587 | const I32 gimme = GIMME_V; |
| 4588 | ||
| 4589 | *Perl_av_iter_p(aTHX_ array) = 0; | |
| 4590 | ||
| 4591 | if (gimme == G_SCALAR) { | |
| 4592 | dTARGET; | |
| 4593 | PUSHi(av_len(array) + 1); | |
| 4594 | } | |
| 4595 | else if (gimme == G_ARRAY) { | |
| 4596 | IV n = Perl_av_len(aTHX_ array); | |
| 4597 | IV i = CopARYBASE_get(PL_curcop); | |
| 4598 | ||
| 4599 | EXTEND(SP, n + 1); | |
| 4600 | ||
| 4601 | if (PL_op->op_type == OP_AKEYS) { | |
| 4602 | n += i; | |
| 4603 | for (; i <= n; i++) { | |
| 4604 | mPUSHi(i); | |
| 4605 | } | |
| 4606 | } | |
| 4607 | else { | |
| 4608 | for (i = 0; i <= n; i++) { | |
| 4609 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
| 4610 | PUSHs(elem ? *elem : &PL_sv_undef); | |
| 4611 | } | |
| 4612 | } | |
| 4613 | } | |
| 4614 | RETURN; | |
| 4615 | } | |
| 4616 | ||
| 79072805 LW |
4617 | /* Associative arrays. */ |
| 4618 | ||
| 4619 | PP(pp_each) | |
| 4620 | { | |
| 97aff369 | 4621 | dVAR; |
| 39644a26 | 4622 | dSP; |
| 85fbaab2 | 4623 | HV * hash = MUTABLE_HV(POPs); |
| c07a80fd | 4624 | HE *entry; |
| f54cb97a | 4625 | const I32 gimme = GIMME_V; |
| 8ec5e241 | 4626 | |
| c07a80fd | 4627 | PUTBACK; |
| c750a3ec | 4628 | /* might clobber stack_sp */ |
| 6d822dc4 | 4629 | entry = hv_iternext(hash); |
| c07a80fd | 4630 | SPAGAIN; |
| 79072805 | 4631 | |
| 79072805 LW |
4632 | EXTEND(SP, 2); |
| 4633 | if (entry) { | |
| 1b6737cc | 4634 | SV* const sv = hv_iterkeysv(entry); |
| 574c8022 | 4635 | PUSHs(sv); /* won't clobber stack_sp */ |
| 54310121 | 4636 | if (gimme == G_ARRAY) { |
| 59af0135 | 4637 | SV *val; |
| c07a80fd | 4638 | PUTBACK; |
| c750a3ec | 4639 | /* might clobber stack_sp */ |
| 6d822dc4 | 4640 | val = hv_iterval(hash, entry); |
| c07a80fd | 4641 | SPAGAIN; |
| 59af0135 | 4642 | PUSHs(val); |
| 79072805 | 4643 | } |
| 79072805 | 4644 | } |
| 54310121 | 4645 | else if (gimme == G_SCALAR) |
| 79072805 LW |
4646 | RETPUSHUNDEF; |
| 4647 | ||
| 4648 | RETURN; | |
| 4649 | } | |
| 4650 | ||
| 7332a6c4 VP |
4651 | STATIC OP * |
| 4652 | S_do_delete_local(pTHX) | |
| 79072805 | 4653 | { |
| 97aff369 | 4654 | dVAR; |
| 39644a26 | 4655 | dSP; |
| f54cb97a | 4656 | const I32 gimme = GIMME_V; |
| 7332a6c4 VP |
4657 | const MAGIC *mg; |
| 4658 | HV *stash; | |
| 4659 | ||
| 4660 | if (PL_op->op_private & OPpSLICE) { | |
| 4661 | dMARK; dORIGMARK; | |
| 4662 | SV * const osv = POPs; | |
| 4663 | const bool tied = SvRMAGICAL(osv) | |
| 4664 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
| 4665 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
| 4666 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
| 4667 | const U32 type = SvTYPE(osv); | |
| 4668 | if (type == SVt_PVHV) { /* hash element */ | |
| 4669 | HV * const hv = MUTABLE_HV(osv); | |
| 4670 | while (++MARK <= SP) { | |
| 4671 | SV * const keysv = *MARK; | |
| 4672 | SV *sv = NULL; | |
| 4673 | bool preeminent = TRUE; | |
| 4674 | if (can_preserve) | |
| 4675 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 4676 | if (tied) { | |
| 4677 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
| 4678 | if (he) | |
| 4679 | sv = HeVAL(he); | |
| 4680 | else | |
| 4681 | preeminent = FALSE; | |
| 4682 | } | |
| 4683 | else { | |
| 4684 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
| 4685 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4686 | } | |
| 4687 | if (preeminent) { | |
| 4688 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
| 4689 | if (tied) { | |
| 4690 | *MARK = sv_mortalcopy(sv); | |
| 4691 | mg_clear(sv); | |
| 4692 | } else | |
| 4693 | *MARK = sv; | |
| 4694 | } | |
| 4695 | else { | |
| 4696 | SAVEHDELETE(hv, keysv); | |
| 4697 | *MARK = &PL_sv_undef; | |
| 4698 | } | |
| 4699 | } | |
| 4700 | } | |
| 4701 | else if (type == SVt_PVAV) { /* array element */ | |
| 4702 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4703 | AV * const av = MUTABLE_AV(osv); | |
| 4704 | while (++MARK <= SP) { | |
| 4705 | I32 idx = SvIV(*MARK); | |
| 4706 | SV *sv = NULL; | |
| 4707 | bool preeminent = TRUE; | |
| 4708 | if (can_preserve) | |
| 4709 | preeminent = av_exists(av, idx); | |
| 4710 | if (tied) { | |
| 4711 | SV **svp = av_fetch(av, idx, 1); | |
| 4712 | if (svp) | |
| 4713 | sv = *svp; | |
| 4714 | else | |
| 4715 | preeminent = FALSE; | |
| 4716 | } | |
| 4717 | else { | |
| 4718 | sv = av_delete(av, idx, 0); | |
| 4719 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4720 | } | |
| 4721 | if (preeminent) { | |
| 4722 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
| 4723 | if (tied) { | |
| 4724 | *MARK = sv_mortalcopy(sv); | |
| 4725 | mg_clear(sv); | |
| 4726 | } else | |
| 4727 | *MARK = sv; | |
| 4728 | } | |
| 4729 | else { | |
| 4730 | SAVEADELETE(av, idx); | |
| 4731 | *MARK = &PL_sv_undef; | |
| 4732 | } | |
| 4733 | } | |
| 4734 | } | |
| 4735 | } | |
| 4736 | else | |
| 4737 | DIE(aTHX_ "Not a HASH reference"); | |
| 4738 | if (gimme == G_VOID) | |
| 4739 | SP = ORIGMARK; | |
| 4740 | else if (gimme == G_SCALAR) { | |
| 4741 | MARK = ORIGMARK; | |
| 4742 | if (SP > MARK) | |
| 4743 | *++MARK = *SP; | |
| 4744 | else | |
| 4745 | *++MARK = &PL_sv_undef; | |
| 4746 | SP = MARK; | |
| 4747 | } | |
| 4748 | } | |
| 4749 | else { | |
| 4750 | SV * const keysv = POPs; | |
| 4751 | SV * const osv = POPs; | |
| 4752 | const bool tied = SvRMAGICAL(osv) | |
| 4753 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
| 4754 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
| 4755 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
| 4756 | const U32 type = SvTYPE(osv); | |
| 4757 | SV *sv = NULL; | |
| 4758 | if (type == SVt_PVHV) { | |
| 4759 | HV * const hv = MUTABLE_HV(osv); | |
| 4760 | bool preeminent = TRUE; | |
| 4761 | if (can_preserve) | |
| 4762 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 4763 | if (tied) { | |
| 4764 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
| 4765 | if (he) | |
| 4766 | sv = HeVAL(he); | |
| 4767 | else | |
| 4768 | preeminent = FALSE; | |
| 4769 | } | |
| 4770 | else { | |
| 4771 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
| 4772 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4773 | } | |
| 4774 | if (preeminent) { | |
| 4775 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
| 4776 | if (tied) { | |
| 4777 | SV *nsv = sv_mortalcopy(sv); | |
| 4778 | mg_clear(sv); | |
| 4779 | sv = nsv; | |
| 4780 | } | |
| 4781 | } | |
| 4782 | else | |
| 4783 | SAVEHDELETE(hv, keysv); | |
| 4784 | } | |
| 4785 | else if (type == SVt_PVAV) { | |
| 4786 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4787 | AV * const av = MUTABLE_AV(osv); | |
| 4788 | I32 idx = SvIV(keysv); | |
| 4789 | bool preeminent = TRUE; | |
| 4790 | if (can_preserve) | |
| 4791 | preeminent = av_exists(av, idx); | |
| 4792 | if (tied) { | |
| 4793 | SV **svp = av_fetch(av, idx, 1); | |
| 4794 | if (svp) | |
| 4795 | sv = *svp; | |
| 4796 | else | |
| 4797 | preeminent = FALSE; | |
| 4798 | } | |
| 4799 | else { | |
| 4800 | sv = av_delete(av, idx, 0); | |
| 4801 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4802 | } | |
| 4803 | if (preeminent) { | |
| 4804 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
| 4805 | if (tied) { | |
| 4806 | SV *nsv = sv_mortalcopy(sv); | |
| 4807 | mg_clear(sv); | |
| 4808 | sv = nsv; | |
| 4809 | } | |
| 4810 | } | |
| 4811 | else | |
| 4812 | SAVEADELETE(av, idx); | |
| 4813 | } | |
| 4814 | else | |
| 4815 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 4816 | } | |
| 4817 | else | |
| 4818 | DIE(aTHX_ "Not a HASH reference"); | |
| 4819 | if (!sv) | |
| 4820 | sv = &PL_sv_undef; | |
| 4821 | if (gimme != G_VOID) | |
| 4822 | PUSHs(sv); | |
| 4823 | } | |
| 4824 | ||
| 4825 | RETURN; | |
| 4826 | } | |
| 4827 | ||
| 4828 | PP(pp_delete) | |
| 4829 | { | |
| 4830 | dVAR; | |
| 4831 | dSP; | |
| 4832 | I32 gimme; | |
| 4833 | I32 discard; | |
| 4834 | ||
| 4835 | if (PL_op->op_private & OPpLVAL_INTRO) | |
| 4836 | return do_delete_local(); | |
| 4837 | ||
| 4838 | gimme = GIMME_V; | |
| 4839 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
| 5f05dabc | 4840 | |
| 533c011a | 4841 | if (PL_op->op_private & OPpSLICE) { |
| 5f05dabc | 4842 | dMARK; dORIGMARK; |
| 85fbaab2 | 4843 | HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc | 4844 | const U32 hvtype = SvTYPE(hv); |
| 01020589 GS |
4845 | if (hvtype == SVt_PVHV) { /* hash element */ |
| 4846 | while (++MARK <= SP) { | |
| 1b6737cc | 4847 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
| 01020589 GS |
4848 | *MARK = sv ? sv : &PL_sv_undef; |
| 4849 | } | |
| 5f05dabc | 4850 | } |
| 6d822dc4 MS |
4851 | else if (hvtype == SVt_PVAV) { /* array element */ |
| 4852 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4853 | while (++MARK <= SP) { | |
| 502c6561 | 4854 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
| 6d822dc4 MS |
4855 | *MARK = sv ? sv : &PL_sv_undef; |
| 4856 | } | |
| 4857 | } | |
| 01020589 GS |
4858 | } |
| 4859 | else | |
| 4860 | DIE(aTHX_ "Not a HASH reference"); | |
| 54310121 | 4861 | if (discard) |
| 4862 | SP = ORIGMARK; | |
| 4863 | else if (gimme == G_SCALAR) { | |
| 5f05dabc | 4864 | MARK = ORIGMARK; |
| 9111c9c0 DM |
4865 | if (SP > MARK) |
| 4866 | *++MARK = *SP; | |
| 4867 | else | |
| 4868 | *++MARK = &PL_sv_undef; | |
| 5f05dabc | 4869 | SP = MARK; |
| 4870 | } | |
| 4871 | } | |
| 4872 | else { | |
| 4873 | SV *keysv = POPs; | |
| 85fbaab2 | 4874 | HV * const hv = MUTABLE_HV(POPs); |
| 295d248e | 4875 | SV *sv = NULL; |
| 97fcbf96 MB |
4876 | if (SvTYPE(hv) == SVt_PVHV) |
| 4877 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
| 01020589 GS |
4878 | else if (SvTYPE(hv) == SVt_PVAV) { |
| 4879 | if (PL_op->op_flags & OPf_SPECIAL) | |
| 502c6561 | 4880 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
| af288a60 HS |
4881 | else |
| 4882 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 01020589 | 4883 | } |
| 97fcbf96 | 4884 | else |
| cea2e8a9 | 4885 | DIE(aTHX_ "Not a HASH reference"); |
| 5f05dabc | 4886 | if (!sv) |
| 3280af22 | 4887 | sv = &PL_sv_undef; |
| 54310121 | 4888 | if (!discard) |
| 4889 | PUSHs(sv); | |
| 79072805 | 4890 | } |
| 79072805 LW |
4891 | RETURN; |
| 4892 | } | |
| 4893 | ||
| a0d0e21e | 4894 | PP(pp_exists) |
| 79072805 | 4895 | { |
| 97aff369 | 4896 | dVAR; |
| 39644a26 | 4897 | dSP; |
| afebc493 GS |
4898 | SV *tmpsv; |
| 4899 | HV *hv; | |
| 4900 | ||
| 4901 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
| 4902 | GV *gv; | |
| 0bd48802 | 4903 | SV * const sv = POPs; |
| f2c0649b | 4904 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
| afebc493 GS |
4905 | if (cv) |
| 4906 | RETPUSHYES; | |
| 4907 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
| 4908 | RETPUSHYES; | |
| 4909 | RETPUSHNO; | |
| 4910 | } | |
| 4911 | tmpsv = POPs; | |
| 85fbaab2 | 4912 | hv = MUTABLE_HV(POPs); |
| c750a3ec | 4913 | if (SvTYPE(hv) == SVt_PVHV) { |
| ae77835f | 4914 | if (hv_exists_ent(hv, tmpsv, 0)) |
| c750a3ec | 4915 | RETPUSHYES; |
| ef54e1a4 JH |
4916 | } |
| 4917 | else if (SvTYPE(hv) == SVt_PVAV) { | |
| 01020589 | 4918 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
| 502c6561 | 4919 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
| 01020589 GS |
4920 | RETPUSHYES; |
| 4921 | } | |
| ef54e1a4 JH |
4922 | } |
| 4923 | else { | |
| cea2e8a9 | 4924 | DIE(aTHX_ "Not a HASH reference"); |
| a0d0e21e | 4925 | } |
| a0d0e21e LW |
4926 | RETPUSHNO; |
| 4927 | } | |
| 79072805 | 4928 | |
| a0d0e21e LW |
4929 | PP(pp_hslice) |
| 4930 | { | |
| 97aff369 | 4931 | dVAR; dSP; dMARK; dORIGMARK; |
| 85fbaab2 | 4932 | register HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc AL |
4933 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
| 4934 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
| d30e492c | 4935 | bool can_preserve = FALSE; |
| 79072805 | 4936 | |
| eb85dfd3 DM |
4937 | if (localizing) { |
| 4938 | MAGIC *mg; | |
| 4939 | HV *stash; | |
| 4940 | ||
| d30e492c VP |
4941 | if (SvCANEXISTDELETE(hv) || mg_find((const SV *)hv, PERL_MAGIC_env)) |
| 4942 | can_preserve = TRUE; | |
| eb85dfd3 DM |
4943 | } |
| 4944 | ||
| 6d822dc4 | 4945 | while (++MARK <= SP) { |
| 1b6737cc | 4946 | SV * const keysv = *MARK; |
| 6d822dc4 MS |
4947 | SV **svp; |
| 4948 | HE *he; | |
| d30e492c VP |
4949 | bool preeminent = TRUE; |
| 4950 | ||
| 4951 | if (localizing && can_preserve) { | |
| 4952 | /* If we can determine whether the element exist, | |
| 4953 | * try to preserve the existenceness of a tied hash | |
| 4954 | * element by using EXISTS and DELETE if possible. | |
| 4955 | * Fallback to FETCH and STORE otherwise. */ | |
| 4956 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 6d822dc4 | 4957 | } |
| eb85dfd3 | 4958 | |
| 6d822dc4 | 4959 | he = hv_fetch_ent(hv, keysv, lval, 0); |
| fe5bfecd | 4960 | svp = he ? &HeVAL(he) : NULL; |
| eb85dfd3 | 4961 | |
| 6d822dc4 MS |
4962 | if (lval) { |
| 4963 | if (!svp || *svp == &PL_sv_undef) { | |
| be2597df | 4964 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
| 6d822dc4 MS |
4965 | } |
| 4966 | if (localizing) { | |
| 7a2e501a | 4967 | if (HvNAME_get(hv) && isGV(*svp)) |
| 159b6efe | 4968 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
| 47cfc530 VP |
4969 | else if (preeminent) |
| 4970 | save_helem_flags(hv, keysv, svp, | |
| 4971 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
| 4972 | else | |
| 4973 | SAVEHDELETE(hv, keysv); | |
| 6d822dc4 MS |
4974 | } |
| 4975 | } | |
| 4976 | *MARK = svp ? *svp : &PL_sv_undef; | |
| 79072805 | 4977 | } |
| a0d0e21e LW |
4978 | if (GIMME != G_ARRAY) { |
| 4979 | MARK = ORIGMARK; | |
| 04ab2c87 | 4980 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e | 4981 | SP = MARK; |
| 79072805 | 4982 | } |
| a0d0e21e LW |
4983 | RETURN; |
| 4984 | } | |
| 4985 | ||
| 4986 | /* List operators. */ | |
| 4987 | ||
| 4988 | PP(pp_list) | |
| 4989 | { | |
| 97aff369 | 4990 | dVAR; dSP; dMARK; |
| a0d0e21e LW |
4991 | if (GIMME != G_ARRAY) { |
| 4992 | if (++MARK <= SP) | |
| 4993 | *MARK = *SP; /* unwanted list, return last item */ | |
| 8990e307 | 4994 | else |
| 3280af22 | 4995 | *MARK = &PL_sv_undef; |
| a0d0e21e | 4996 | SP = MARK; |
| 79072805 | 4997 | } |
| a0d0e21e | 4998 | RETURN; |
| 79072805 LW |
4999 | } |
| 5000 | ||
| a0d0e21e | 5001 | PP(pp_lslice) |
| 79072805 | 5002 | { |
| 97aff369 | 5003 | dVAR; |
| 39644a26 | 5004 | dSP; |
| 1b6737cc AL |
5005 | SV ** const lastrelem = PL_stack_sp; |
| 5006 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
| 5007 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
| 5008 | register SV ** const firstrelem = lastlelem + 1; | |
| fc15ae8f | 5009 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 42e73ed0 | 5010 | I32 is_something_there = FALSE; |
| 1b6737cc AL |
5011 | |
| 5012 | register const I32 max = lastrelem - lastlelem; | |
| a0d0e21e | 5013 | register SV **lelem; |
| a0d0e21e LW |
5014 | |
| 5015 | if (GIMME != G_ARRAY) { | |
| 4ea561bc | 5016 | I32 ix = SvIV(*lastlelem); |
| 748a9306 LW |
5017 | if (ix < 0) |
| 5018 | ix += max; | |
| 5019 | else | |
| 5020 | ix -= arybase; | |
| a0d0e21e | 5021 | if (ix < 0 || ix >= max) |
| 3280af22 | 5022 | *firstlelem = &PL_sv_undef; |
| a0d0e21e LW |
5023 | else |
| 5024 | *firstlelem = firstrelem[ix]; | |
| 5025 | SP = firstlelem; | |
| 5026 | RETURN; | |
| 5027 | } | |
| 5028 | ||
| 5029 | if (max == 0) { | |
| 5030 | SP = firstlelem - 1; | |
| 5031 | RETURN; | |
| 5032 | } | |
| 5033 | ||
| 5034 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
| 4ea561bc | 5035 | I32 ix = SvIV(*lelem); |
| c73bf8e3 | 5036 | if (ix < 0) |
| a0d0e21e | 5037 | ix += max; |
| b13b2135 | 5038 | else |
| 748a9306 | 5039 | ix -= arybase; |
| c73bf8e3 HS |
5040 | if (ix < 0 || ix >= max) |
| 5041 | *lelem = &PL_sv_undef; | |
| 5042 | else { | |
| 5043 | is_something_there = TRUE; | |
| 5044 | if (!(*lelem = firstrelem[ix])) | |
| 3280af22 | 5045 | *lelem = &PL_sv_undef; |
| 748a9306 | 5046 | } |
| 79072805 | 5047 | } |
| 4633a7c4 LW |
5048 | if (is_something_there) |
| 5049 | SP = lastlelem; | |
| 5050 | else | |
| 5051 | SP = firstlelem - 1; | |
| 79072805 LW |
5052 | RETURN; |
| 5053 | } | |
| 5054 | ||
| a0d0e21e LW |
5055 | PP(pp_anonlist) |
| 5056 | { | |
| 97aff369 | 5057 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc | 5058 | const I32 items = SP - MARK; |
| ad64d0ec | 5059 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
| 44a8e56a | 5060 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
| 6e449a3a MHM |
5061 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
| 5062 | ? newRV_noinc(av) : av); | |
| a0d0e21e LW |
5063 | RETURN; |
| 5064 | } | |
| 5065 | ||
| 5066 | PP(pp_anonhash) | |
| 79072805 | 5067 | { |
| 97aff369 | 5068 | dVAR; dSP; dMARK; dORIGMARK; |
| 78c72037 | 5069 | HV* const hv = newHV(); |
| a0d0e21e LW |
5070 | |
| 5071 | while (MARK < SP) { | |
| 1b6737cc | 5072 | SV * const key = *++MARK; |
| 561b68a9 | 5073 | SV * const val = newSV(0); |
| a0d0e21e LW |
5074 | if (MARK < SP) |
| 5075 | sv_setsv(val, *++MARK); | |
| a2a5de95 NC |
5076 | else |
| 5077 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); | |
| f12c7020 | 5078 | (void)hv_store_ent(hv,key,val,0); |
| 79072805 | 5079 | } |
| a0d0e21e | 5080 | SP = ORIGMARK; |
| 6e449a3a | 5081 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
| ad64d0ec | 5082 | ? newRV_noinc(MUTABLE_SV(hv)) : MUTABLE_SV(hv)); |
| 79072805 LW |
5083 | RETURN; |
| 5084 | } | |
| 5085 | ||
| a0d0e21e | 5086 | PP(pp_splice) |
| 79072805 | 5087 | { |
| 27da23d5 | 5088 | dVAR; dSP; dMARK; dORIGMARK; |
| 502c6561 | 5089 | register AV *ary = MUTABLE_AV(*++MARK); |
| a0d0e21e LW |
5090 | register SV **src; |
| 5091 | register SV **dst; | |
| 5092 | register I32 i; | |
| 5093 | register I32 offset; | |
| 5094 | register I32 length; | |
| 5095 | I32 newlen; | |
| 5096 | I32 after; | |
| 5097 | I32 diff; | |
| ad64d0ec | 5098 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 93965878 | 5099 | |
| 1b6737cc | 5100 | if (mg) { |
| ad64d0ec | 5101 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 93965878 | 5102 | PUSHMARK(MARK); |
| 8ec5e241 | 5103 | PUTBACK; |
| d343c3ef | 5104 | ENTER_with_name("call_SPLICE"); |
| 864dbfa3 | 5105 | call_method("SPLICE",GIMME_V); |
| d343c3ef | 5106 | LEAVE_with_name("call_SPLICE"); |
| 93965878 NIS |
5107 | SPAGAIN; |
| 5108 | RETURN; | |
| 5109 | } | |
| 79072805 | 5110 | |
| a0d0e21e | 5111 | SP++; |
| 79072805 | 5112 | |
| a0d0e21e | 5113 | if (++MARK < SP) { |
| 4ea561bc | 5114 | offset = i = SvIV(*MARK); |
| a0d0e21e | 5115 | if (offset < 0) |
| 93965878 | 5116 | offset += AvFILLp(ary) + 1; |
| a0d0e21e | 5117 | else |
| fc15ae8f | 5118 | offset -= CopARYBASE_get(PL_curcop); |
| 84902520 | 5119 | if (offset < 0) |
| cea2e8a9 | 5120 | DIE(aTHX_ PL_no_aelem, i); |
| a0d0e21e LW |
5121 | if (++MARK < SP) { |
| 5122 | length = SvIVx(*MARK++); | |
| 48cdf507 GA |
5123 | if (length < 0) { |
| 5124 | length += AvFILLp(ary) - offset + 1; | |
| 5125 | if (length < 0) | |
| 5126 | length = 0; | |
| 5127 | } | |
| 79072805 LW |
5128 | } |
| 5129 | else | |
| a0d0e21e | 5130 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
| 79072805 | 5131 | } |
| a0d0e21e LW |
5132 | else { |
| 5133 | offset = 0; | |
| 5134 | length = AvMAX(ary) + 1; | |
| 5135 | } | |
| 8cbc2e3b | 5136 | if (offset > AvFILLp(ary) + 1) { |
| a2a5de95 | 5137 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); |
| 93965878 | 5138 | offset = AvFILLp(ary) + 1; |
| 8cbc2e3b | 5139 | } |
| 93965878 | 5140 | after = AvFILLp(ary) + 1 - (offset + length); |
| a0d0e21e LW |
5141 | if (after < 0) { /* not that much array */ |
| 5142 | length += after; /* offset+length now in array */ | |
| 5143 | after = 0; | |
| 5144 | if (!AvALLOC(ary)) | |
| 5145 | av_extend(ary, 0); | |
| 5146 | } | |
| 5147 | ||
| 5148 | /* At this point, MARK .. SP-1 is our new LIST */ | |
| 5149 | ||
| 5150 | newlen = SP - MARK; | |
| 5151 | diff = newlen - length; | |
| 13d7cbc1 GS |
5152 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
| 5153 | av_reify(ary); | |
| a0d0e21e | 5154 | |
| 50528de0 WL |
5155 | /* make new elements SVs now: avoid problems if they're from the array */ |
| 5156 | for (dst = MARK, i = newlen; i; i--) { | |
| 1b6737cc | 5157 | SV * const h = *dst; |
| f2b990bf | 5158 | *dst++ = newSVsv(h); |
| 50528de0 WL |
5159 | } |
| 5160 | ||
| a0d0e21e | 5161 | if (diff < 0) { /* shrinking the area */ |
| 95b63a38 | 5162 | SV **tmparyval = NULL; |
| a0d0e21e | 5163 | if (newlen) { |
| a02a5408 | 5164 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
| a0d0e21e | 5165 | Copy(MARK, tmparyval, newlen, SV*); |
| 79072805 | 5166 | } |
| a0d0e21e LW |
5167 | |
| 5168 | MARK = ORIGMARK + 1; | |
| 5169 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 5170 | MEXTEND(MARK, length); | |
| 5171 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
| 5172 | if (AvREAL(ary)) { | |
| bbce6d69 | 5173 | EXTEND_MORTAL(length); |
| 36477c24 | 5174 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 5175 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 5176 | dst++; |
| 5177 | } | |
| a0d0e21e LW |
5178 | } |
| 5179 | MARK += length - 1; | |
| 79072805 | 5180 | } |
| a0d0e21e LW |
5181 | else { |
| 5182 | *MARK = AvARRAY(ary)[offset+length-1]; | |
| 5183 | if (AvREAL(ary)) { | |
| d689ffdd | 5184 | sv_2mortal(*MARK); |
| a0d0e21e LW |
5185 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
| 5186 | SvREFCNT_dec(*dst++); /* free them now */ | |
| 79072805 | 5187 | } |
| a0d0e21e | 5188 | } |
| 93965878 | 5189 | AvFILLp(ary) += diff; |
| a0d0e21e LW |
5190 | |
| 5191 | /* pull up or down? */ | |
| 5192 | ||
| 5193 | if (offset < after) { /* easier to pull up */ | |
| 5194 | if (offset) { /* esp. if nothing to pull */ | |
| 5195 | src = &AvARRAY(ary)[offset-1]; | |
| 5196 | dst = src - diff; /* diff is negative */ | |
| 5197 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
| 5198 | *dst-- = *src--; | |
| 79072805 | 5199 | } |
| a0d0e21e | 5200 | dst = AvARRAY(ary); |
| 9c6bc640 | 5201 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
| a0d0e21e LW |
5202 | AvMAX(ary) += diff; |
| 5203 | } | |
| 5204 | else { | |
| 5205 | if (after) { /* anything to pull down? */ | |
| 5206 | src = AvARRAY(ary) + offset + length; | |
| 5207 | dst = src + diff; /* diff is negative */ | |
| 5208 | Move(src, dst, after, SV*); | |
| 79072805 | 5209 | } |
| 93965878 | 5210 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
| a0d0e21e LW |
5211 | /* avoid later double free */ |
| 5212 | } | |
| 5213 | i = -diff; | |
| 5214 | while (i) | |
| 3280af22 | 5215 | dst[--i] = &PL_sv_undef; |
| a0d0e21e LW |
5216 | |
| 5217 | if (newlen) { | |
| 50528de0 | 5218 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
| a0d0e21e LW |
5219 | Safefree(tmparyval); |
| 5220 | } | |
| 5221 | } | |
| 5222 | else { /* no, expanding (or same) */ | |
| d3961450 | 5223 | SV** tmparyval = NULL; |
| a0d0e21e | 5224 | if (length) { |
| a02a5408 | 5225 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
| a0d0e21e LW |
5226 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
| 5227 | } | |
| 5228 | ||
| 5229 | if (diff > 0) { /* expanding */ | |
| a0d0e21e | 5230 | /* push up or down? */ |
| a0d0e21e LW |
5231 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
| 5232 | if (offset) { | |
| 5233 | src = AvARRAY(ary); | |
| 5234 | dst = src - diff; | |
| 5235 | Move(src, dst, offset, SV*); | |
| 79072805 | 5236 | } |
| 9c6bc640 | 5237 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
| a0d0e21e | 5238 | AvMAX(ary) += diff; |
| 93965878 | 5239 | AvFILLp(ary) += diff; |
| 79072805 LW |
5240 | } |
| 5241 | else { | |
| 93965878 NIS |
5242 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
| 5243 | av_extend(ary, AvFILLp(ary) + diff); | |
| 5244 | AvFILLp(ary) += diff; | |
| a0d0e21e LW |
5245 | |
| 5246 | if (after) { | |
| 93965878 | 5247 | dst = AvARRAY(ary) + AvFILLp(ary); |
| a0d0e21e LW |
5248 | src = dst - diff; |
| 5249 | for (i = after; i; i--) { | |
| 5250 | *dst-- = *src--; | |
| 5251 | } | |
| 79072805 LW |
5252 | } |
| 5253 | } | |
| a0d0e21e LW |
5254 | } |
| 5255 | ||
| 50528de0 WL |
5256 | if (newlen) { |
| 5257 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
| a0d0e21e | 5258 | } |
| 50528de0 | 5259 | |
| a0d0e21e LW |
5260 | MARK = ORIGMARK + 1; |
| 5261 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 5262 | if (length) { | |
| 5263 | Copy(tmparyval, MARK, length, SV*); | |
| 5264 | if (AvREAL(ary)) { | |
| bbce6d69 | 5265 | EXTEND_MORTAL(length); |
| 36477c24 | 5266 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 5267 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 5268 | dst++; |
| 5269 | } | |
| 79072805 LW |
5270 | } |
| 5271 | } | |
| a0d0e21e LW |
5272 | MARK += length - 1; |
| 5273 | } | |
| 5274 | else if (length--) { | |
| 5275 | *MARK = tmparyval[length]; | |
| 5276 | if (AvREAL(ary)) { | |
| d689ffdd | 5277 | sv_2mortal(*MARK); |
| a0d0e21e LW |
5278 | while (length-- > 0) |
| 5279 | SvREFCNT_dec(tmparyval[length]); | |
| 79072805 | 5280 | } |
| 79072805 | 5281 | } |
| a0d0e21e | 5282 | else |
| 3280af22 | 5283 | *MARK = &PL_sv_undef; |
| d3961450 | 5284 | Safefree(tmparyval); |
| 79072805 | 5285 | } |
| a0d0e21e | 5286 | SP = MARK; |
| 79072805 LW |
5287 | RETURN; |
| 5288 | } | |
| 5289 | ||
| a0d0e21e | 5290 | PP(pp_push) |
| 79072805 | 5291 | { |
| 27da23d5 | 5292 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 502c6561 | 5293 | register AV * const ary = MUTABLE_AV(*++MARK); |
| ad64d0ec | 5294 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 79072805 | 5295 | |
| 1b6737cc | 5296 | if (mg) { |
| ad64d0ec | 5297 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 93965878 NIS |
5298 | PUSHMARK(MARK); |
| 5299 | PUTBACK; | |
| d343c3ef | 5300 | ENTER_with_name("call_PUSH"); |
| 864dbfa3 | 5301 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| d343c3ef | 5302 | LEAVE_with_name("call_PUSH"); |
| 93965878 | 5303 | SPAGAIN; |
| 93965878 | 5304 | } |
| a60c0954 | 5305 | else { |
| 89c14e2e | 5306 | PL_delaymagic = DM_DELAY; |
| a60c0954 | 5307 | for (++MARK; MARK <= SP; MARK++) { |
| 561b68a9 | 5308 | SV * const sv = newSV(0); |
| a60c0954 NIS |
5309 | if (*MARK) |
| 5310 | sv_setsv(sv, *MARK); | |
| 0a75904b | 5311 | av_store(ary, AvFILLp(ary)+1, sv); |
| a60c0954 | 5312 | } |
| 89c14e2e | 5313 | if (PL_delaymagic & DM_ARRAY) |
| ad64d0ec | 5314 | mg_set(MUTABLE_SV(ary)); |
| 89c14e2e BB |
5315 | |
| 5316 | PL_delaymagic = 0; | |
| 6eeabd23 VP |
5317 | } |
| 5318 | SP = ORIGMARK; | |
| 5319 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
| 5320 | PUSHi( AvFILL(ary) + 1 ); | |
| 79072805 | 5321 | } |
| 79072805 LW |
5322 | RETURN; |
| 5323 | } | |
| 5324 | ||
| a0d0e21e | 5325 | PP(pp_shift) |
| 79072805 | 5326 | { |
| 97aff369 | 5327 | dVAR; |
| 39644a26 | 5328 | dSP; |
| 502c6561 | 5329 | AV * const av = MUTABLE_AV(POPs); |
| 789b4bc9 | 5330 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
| 79072805 | 5331 | EXTEND(SP, 1); |
| c2b4a044 | 5332 | assert (sv); |
| d689ffdd | 5333 | if (AvREAL(av)) |
| a0d0e21e LW |
5334 | (void)sv_2mortal(sv); |
| 5335 | PUSHs(sv); | |
| 79072805 | 5336 | RETURN; |
| 79072805 LW |
5337 | } |
| 5338 | ||
| a0d0e21e | 5339 | PP(pp_unshift) |
| 79072805 | 5340 | { |
| 27da23d5 | 5341 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 502c6561 | 5342 | register AV *ary = MUTABLE_AV(*++MARK); |
| ad64d0ec | 5343 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 93965878 | 5344 | |
| 1b6737cc | 5345 | if (mg) { |
| ad64d0ec | 5346 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 7fd66d9d | 5347 | PUSHMARK(MARK); |
| 93965878 | 5348 | PUTBACK; |
| d343c3ef | 5349 | ENTER_with_name("call_UNSHIFT"); |
| 864dbfa3 | 5350 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
| d343c3ef | 5351 | LEAVE_with_name("call_UNSHIFT"); |
| 93965878 | 5352 | SPAGAIN; |
| 93965878 | 5353 | } |
| a60c0954 | 5354 | else { |
| 1b6737cc | 5355 | register I32 i = 0; |
| a60c0954 NIS |
5356 | av_unshift(ary, SP - MARK); |
| 5357 | while (MARK < SP) { | |
| 1b6737cc | 5358 | SV * const sv = newSVsv(*++MARK); |
| a60c0954 NIS |
5359 | (void)av_store(ary, i++, sv); |
| 5360 | } | |
| 79072805 | 5361 | } |
| a0d0e21e | 5362 | SP = ORIGMARK; |
| 6eeabd23 | 5363 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
| 5658d0a9 LR |
5364 | PUSHi( AvFILL(ary) + 1 ); |
| 5365 | } | |
| 79072805 | 5366 | RETURN; |
| 79072805 LW |
5367 | } |
| 5368 | ||
| a0d0e21e | 5369 | PP(pp_reverse) |
| 79072805 | 5370 | { |
| 97aff369 | 5371 | dVAR; dSP; dMARK; |
| 79072805 | 5372 | |
| a0d0e21e | 5373 | if (GIMME == G_ARRAY) { |
| 484c818f VP |
5374 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
| 5375 | AV *av; | |
| 5376 | ||
| 5377 | /* See pp_sort() */ | |
| 5378 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
| 5379 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
| 5380 | av = MUTABLE_AV((*SP)); | |
| 5381 | /* In-place reversing only happens in void context for the array | |
| 5382 | * assignment. We don't need to push anything on the stack. */ | |
| 5383 | SP = MARK; | |
| 5384 | ||
| 5385 | if (SvMAGICAL(av)) { | |
| 5386 | I32 i, j; | |
| 5387 | register SV *tmp = sv_newmortal(); | |
| 5388 | /* For SvCANEXISTDELETE */ | |
| 5389 | HV *stash; | |
| 5390 | const MAGIC *mg; | |
| 5391 | bool can_preserve = SvCANEXISTDELETE(av); | |
| 5392 | ||
| 5393 | for (i = 0, j = av_len(av); i < j; ++i, --j) { | |
| 5394 | register SV *begin, *end; | |
| 5395 | ||
| 5396 | if (can_preserve) { | |
| 5397 | if (!av_exists(av, i)) { | |
| 5398 | if (av_exists(av, j)) { | |
| 5399 | register SV *sv = av_delete(av, j, 0); | |
| 5400 | begin = *av_fetch(av, i, TRUE); | |
| 5401 | sv_setsv_mg(begin, sv); | |
| 5402 | } | |
| 5403 | continue; | |
| 5404 | } | |
| 5405 | else if (!av_exists(av, j)) { | |
| 5406 | register SV *sv = av_delete(av, i, 0); | |
| 5407 | end = *av_fetch(av, j, TRUE); | |
| 5408 | sv_setsv_mg(end, sv); | |
| 5409 | continue; | |
| 5410 | } | |
| 5411 | } | |
| 5412 | ||
| 5413 | begin = *av_fetch(av, i, TRUE); | |
| 5414 | end = *av_fetch(av, j, TRUE); | |
| 5415 | sv_setsv(tmp, begin); | |
| 5416 | sv_setsv_mg(begin, end); | |
| 5417 | sv_setsv_mg(end, tmp); | |
| 5418 | } | |
| 5419 | } | |
| 5420 | else { | |
| 5421 | SV **begin = AvARRAY(av); | |
| 484c818f | 5422 | |
| 95a26d8e VP |
5423 | if (begin) { |
| 5424 | SV **end = begin + AvFILLp(av); | |
| 5425 | ||
| 5426 | while (begin < end) { | |
| 5427 | register SV * const tmp = *begin; | |
| 5428 | *begin++ = *end; | |
| 5429 | *end-- = tmp; | |
| 5430 | } | |
| 484c818f VP |
5431 | } |
| 5432 | } | |
| 5433 | } | |
| 5434 | else { | |
| 5435 | SV **oldsp = SP; | |
| 5436 | MARK++; | |
| 5437 | while (MARK < SP) { | |
| 5438 | register SV * const tmp = *MARK; | |
| 5439 | *MARK++ = *SP; | |
| 5440 | *SP-- = tmp; | |
| 5441 | } | |
| 5442 | /* safe as long as stack cannot get extended in the above */ | |
| 5443 | SP = oldsp; | |
| a0d0e21e | 5444 | } |
| 79072805 LW |
5445 | } |
| 5446 | else { | |
| a0d0e21e LW |
5447 | register char *up; |
| 5448 | register char *down; | |
| 5449 | register I32 tmp; | |
| 5450 | dTARGET; | |
| 5451 | STRLEN len; | |
| 9f7d9405 | 5452 | PADOFFSET padoff_du; |
| 79072805 | 5453 | |
| 7e2040f0 | 5454 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 5455 | if (SP - MARK > 1) |
| 3280af22 | 5456 | do_join(TARG, &PL_sv_no, MARK, SP); |
| 1e21d011 | 5457 | else { |
| e1f795dc RGS |
5458 | sv_setsv(TARG, (SP > MARK) |
| 5459 | ? *SP | |
| 29289021 | 5460 | : (padoff_du = find_rundefsvoffset(), |
| 00b1698f NC |
5461 | (padoff_du == NOT_IN_PAD |
| 5462 | || PAD_COMPNAME_FLAGS_isOUR(padoff_du)) | |
| e1f795dc | 5463 | ? DEFSV : PAD_SVl(padoff_du))); |
| 1e21d011 B |
5464 | |
| 5465 | if (! SvOK(TARG) && ckWARN(WARN_UNINITIALIZED)) | |
| 5466 | report_uninit(TARG); | |
| 5467 | } | |
| 5468 | ||
| a0d0e21e LW |
5469 | up = SvPV_force(TARG, len); |
| 5470 | if (len > 1) { | |
| 7e2040f0 | 5471 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
| dfe13c55 | 5472 | U8* s = (U8*)SvPVX(TARG); |
| 349d4f2f | 5473 | const U8* send = (U8*)(s + len); |
| a0ed51b3 | 5474 | while (s < send) { |
| d742c382 | 5475 | if (UTF8_IS_INVARIANT(*s)) { |
| a0ed51b3 LW |
5476 | s++; |
| 5477 | continue; | |
| 5478 | } | |
| 5479 | else { | |
| 9041c2e3 | 5480 | if (!utf8_to_uvchr(s, 0)) |
| a0dbb045 | 5481 | break; |
| dfe13c55 | 5482 | up = (char*)s; |
| a0ed51b3 | 5483 | s += UTF8SKIP(s); |
| dfe13c55 | 5484 | down = (char*)(s - 1); |
| a0dbb045 | 5485 | /* reverse this character */ |
| a0ed51b3 LW |
5486 | while (down > up) { |
| 5487 | tmp = *up; | |
| 5488 | *up++ = *down; | |
| eb160463 | 5489 | *down-- = (char)tmp; |
| a0ed51b3 LW |
5490 | } |
| 5491 | } | |
| 5492 | } | |
| 5493 | up = SvPVX(TARG); | |
| 5494 | } | |
| a0d0e21e LW |
5495 | down = SvPVX(TARG) + len - 1; |
| 5496 | while (down > up) { | |
| 5497 | tmp = *up; | |
| 5498 | *up++ = *down; | |
| eb160463 | 5499 | *down-- = (char)tmp; |
| a0d0e21e | 5500 | } |
| 3aa33fe5 | 5501 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 5502 | } |
| a0d0e21e LW |
5503 | SP = MARK + 1; |
| 5504 | SETTARG; | |
| 79072805 | 5505 | } |
| a0d0e21e | 5506 | RETURN; |
| 79072805 LW |
5507 | } |
| 5508 | ||
| a0d0e21e | 5509 | PP(pp_split) |
| 79072805 | 5510 | { |
| 27da23d5 | 5511 | dVAR; dSP; dTARG; |
| a0d0e21e | 5512 | AV *ary; |
| 467f0320 | 5513 | register IV limit = POPi; /* note, negative is forever */ |
| 1b6737cc | 5514 | SV * const sv = POPs; |
| a0d0e21e | 5515 | STRLEN len; |
| 727b7506 | 5516 | register const char *s = SvPV_const(sv, len); |
| 1b6737cc | 5517 | const bool do_utf8 = DO_UTF8(sv); |
| 727b7506 | 5518 | const char *strend = s + len; |
| 44a8e56a | 5519 | register PMOP *pm; |
| d9f97599 | 5520 | register REGEXP *rx; |
| a0d0e21e | 5521 | register SV *dstr; |
| 727b7506 | 5522 | register const char *m; |
| a0d0e21e | 5523 | I32 iters = 0; |
| bb7a0f54 | 5524 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (STRLEN)(strend - s); |
| 792b2c16 | 5525 | I32 maxiters = slen + 10; |
| c1a7495a | 5526 | I32 trailing_empty = 0; |
| 727b7506 | 5527 | const char *orig; |
| 1b6737cc | 5528 | const I32 origlimit = limit; |
| a0d0e21e LW |
5529 | I32 realarray = 0; |
| 5530 | I32 base; | |
| f54cb97a | 5531 | const I32 gimme = GIMME_V; |
| 941446f6 | 5532 | bool gimme_scalar; |
| f54cb97a | 5533 | const I32 oldsave = PL_savestack_ix; |
| 437d3b4e | 5534 | U32 make_mortal = SVs_TEMP; |
| 7fba1cd6 | 5535 | bool multiline = 0; |
| b37c2d43 | 5536 | MAGIC *mg = NULL; |
| 79072805 | 5537 | |
| 44a8e56a | 5538 | #ifdef DEBUGGING |
| 5539 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
| 5540 | #else | |
| 5541 | pm = (PMOP*)POPs; | |
| 5542 | #endif | |
| a0d0e21e | 5543 | if (!pm || !s) |
| 2269b42e | 5544 | DIE(aTHX_ "panic: pp_split"); |
| aaa362c4 | 5545 | rx = PM_GETRE(pm); |
| bbce6d69 | 5546 | |
| 07bc277f NC |
5547 | TAINT_IF((RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) && |
| 5548 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); | |
| bbce6d69 | 5549 | |
| a30b2f1f | 5550 | RX_MATCH_UTF8_set(rx, do_utf8); |
| d9f424b2 | 5551 | |
| 971a9dd3 | 5552 | #ifdef USE_ITHREADS |
| 20e98b0f | 5553 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
| 159b6efe | 5554 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
| 20e98b0f | 5555 | } |
| 971a9dd3 | 5556 | #else |
| 20e98b0f NC |
5557 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
| 5558 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
| 971a9dd3 | 5559 | } |
| 20e98b0f | 5560 | #endif |
| 79072805 | 5561 | else |
| 7d49f689 | 5562 | ary = NULL; |
| a0d0e21e LW |
5563 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
| 5564 | realarray = 1; | |
| 8ec5e241 | 5565 | PUTBACK; |
| a0d0e21e LW |
5566 | av_extend(ary,0); |
| 5567 | av_clear(ary); | |
| 8ec5e241 | 5568 | SPAGAIN; |
| ad64d0ec | 5569 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
| 8ec5e241 | 5570 | PUSHMARK(SP); |
| ad64d0ec | 5571 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
| 8ec5e241 NIS |
5572 | } |
| 5573 | else { | |
| 1c0b011c | 5574 | if (!AvREAL(ary)) { |
| 1b6737cc | 5575 | I32 i; |
| 1c0b011c | 5576 | AvREAL_on(ary); |
| abff13bb | 5577 | AvREIFY_off(ary); |
| 1c0b011c | 5578 | for (i = AvFILLp(ary); i >= 0; i--) |
| 3280af22 | 5579 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
| 1c0b011c NIS |
5580 | } |
| 5581 | /* temporarily switch stacks */ | |
| 8b7059b1 | 5582 | SAVESWITCHSTACK(PL_curstack, ary); |
| 8ec5e241 | 5583 | make_mortal = 0; |
| 1c0b011c | 5584 | } |
| 79072805 | 5585 | } |
| 3280af22 | 5586 | base = SP - PL_stack_base; |
| a0d0e21e | 5587 | orig = s; |
| 07bc277f | 5588 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
| 613f191e TS |
5589 | if (do_utf8) { |
| 5590 | while (*s == ' ' || is_utf8_space((U8*)s)) | |
| 5591 | s += UTF8SKIP(s); | |
| 5592 | } | |
| 07bc277f | 5593 | else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| bbce6d69 | 5594 | while (isSPACE_LC(*s)) |
| 5595 | s++; | |
| 5596 | } | |
| 5597 | else { | |
| 5598 | while (isSPACE(*s)) | |
| 5599 | s++; | |
| 5600 | } | |
| a0d0e21e | 5601 | } |
| 07bc277f | 5602 | if (RX_EXTFLAGS(rx) & PMf_MULTILINE) { |
| 7fba1cd6 | 5603 | multiline = 1; |
| c07a80fd | 5604 | } |
| 5605 | ||
| 941446f6 FC |
5606 | gimme_scalar = gimme == G_SCALAR && !ary; |
| 5607 | ||
| a0d0e21e LW |
5608 | if (!limit) |
| 5609 | limit = maxiters + 2; | |
| 07bc277f | 5610 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
| a0d0e21e | 5611 | while (--limit) { |
| bbce6d69 | 5612 | m = s; |
| 8727f688 YO |
5613 | /* this one uses 'm' and is a negative test */ |
| 5614 | if (do_utf8) { | |
| 613f191e TS |
5615 | while (m < strend && !( *m == ' ' || is_utf8_space((U8*)m) )) { |
| 5616 | const int t = UTF8SKIP(m); | |
| 5617 | /* is_utf8_space returns FALSE for malform utf8 */ | |
| 5618 | if (strend - m < t) | |
| 5619 | m = strend; | |
| 5620 | else | |
| 5621 | m += t; | |
| 5622 | } | |
| 07bc277f | 5623 | } else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| 8727f688 YO |
5624 | while (m < strend && !isSPACE_LC(*m)) |
| 5625 | ++m; | |
| 5626 | } else { | |
| 5627 | while (m < strend && !isSPACE(*m)) | |
| 5628 | ++m; | |
| 5629 | } | |
| a0d0e21e LW |
5630 | if (m >= strend) |
| 5631 | break; | |
| bbce6d69 | 5632 | |
| c1a7495a BB |
5633 | if (gimme_scalar) { |
| 5634 | iters++; | |
| 5635 | if (m-s == 0) | |
| 5636 | trailing_empty++; | |
| 5637 | else | |
| 5638 | trailing_empty = 0; | |
| 5639 | } else { | |
| 5640 | dstr = newSVpvn_flags(s, m-s, | |
| 5641 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5642 | XPUSHs(dstr); | |
| 5643 | } | |
| bbce6d69 | 5644 | |
| 613f191e TS |
5645 | /* skip the whitespace found last */ |
| 5646 | if (do_utf8) | |
| 5647 | s = m + UTF8SKIP(m); | |
| 5648 | else | |
| 5649 | s = m + 1; | |
| 5650 | ||
| 8727f688 YO |
5651 | /* this one uses 's' and is a positive test */ |
| 5652 | if (do_utf8) { | |
| 613f191e | 5653 | while (s < strend && ( *s == ' ' || is_utf8_space((U8*)s) )) |
| 8727f688 | 5654 | s += UTF8SKIP(s); |
| 07bc277f | 5655 | } else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| 8727f688 YO |
5656 | while (s < strend && isSPACE_LC(*s)) |
| 5657 | ++s; | |
| 5658 | } else { | |
| 5659 | while (s < strend && isSPACE(*s)) | |
| 5660 | ++s; | |
| 5661 | } | |
| 79072805 LW |
5662 | } |
| 5663 | } | |
| 07bc277f | 5664 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
| a0d0e21e | 5665 | while (--limit) { |
| a6e20a40 AL |
5666 | for (m = s; m < strend && *m != '\n'; m++) |
| 5667 | ; | |
| a0d0e21e LW |
5668 | m++; |
| 5669 | if (m >= strend) | |
| 5670 | break; | |
| c1a7495a BB |
5671 | |
| 5672 | if (gimme_scalar) { | |
| 5673 | iters++; | |
| 5674 | if (m-s == 0) | |
| 5675 | trailing_empty++; | |
| 5676 | else | |
| 5677 | trailing_empty = 0; | |
| 5678 | } else { | |
| 5679 | dstr = newSVpvn_flags(s, m-s, | |
| 5680 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5681 | XPUSHs(dstr); | |
| 5682 | } | |
| a0d0e21e LW |
5683 | s = m; |
| 5684 | } | |
| 5685 | } | |
| 07bc277f | 5686 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
| 640f820d AB |
5687 | /* |
| 5688 | Pre-extend the stack, either the number of bytes or | |
| 5689 | characters in the string or a limited amount, triggered by: | |
| 5690 | ||
| 5691 | my ($x, $y) = split //, $str; | |
| 5692 | or | |
| 5693 | split //, $str, $i; | |
| 5694 | */ | |
| c1a7495a BB |
5695 | if (!gimme_scalar) { |
| 5696 | const U32 items = limit - 1; | |
| 5697 | if (items < slen) | |
| 5698 | EXTEND(SP, items); | |
| 5699 | else | |
| 5700 | EXTEND(SP, slen); | |
| 5701 | } | |
| 640f820d | 5702 | |
| e9515b0f AB |
5703 | if (do_utf8) { |
| 5704 | while (--limit) { | |
| 5705 | /* keep track of how many bytes we skip over */ | |
| 5706 | m = s; | |
| 640f820d | 5707 | s += UTF8SKIP(s); |
| c1a7495a BB |
5708 | if (gimme_scalar) { |
| 5709 | iters++; | |
| 5710 | if (s-m == 0) | |
| 5711 | trailing_empty++; | |
| 5712 | else | |
| 5713 | trailing_empty = 0; | |
| 5714 | } else { | |
| 5715 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
| 640f820d | 5716 | |
| c1a7495a BB |
5717 | PUSHs(dstr); |
| 5718 | } | |
| 640f820d | 5719 | |
| e9515b0f AB |
5720 | if (s >= strend) |
| 5721 | break; | |
| 5722 | } | |
| 5723 | } else { | |
| 5724 | while (--limit) { | |
| c1a7495a BB |
5725 | if (gimme_scalar) { |
| 5726 | iters++; | |
| 5727 | } else { | |
| 5728 | dstr = newSVpvn(s, 1); | |
| e9515b0f | 5729 | |
| e9515b0f | 5730 | |
| c1a7495a BB |
5731 | if (make_mortal) |
| 5732 | sv_2mortal(dstr); | |
| 640f820d | 5733 | |
| c1a7495a BB |
5734 | PUSHs(dstr); |
| 5735 | } | |
| 5736 | ||
| 5737 | s++; | |
| e9515b0f AB |
5738 | |
| 5739 | if (s >= strend) | |
| 5740 | break; | |
| 5741 | } | |
| 640f820d AB |
5742 | } |
| 5743 | } | |
| 3c8556c3 | 5744 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
| 07bc277f NC |
5745 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
| 5746 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
| 5747 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
| 5748 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
| f9f4320a | 5749 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
| cf93c79d | 5750 | |
| 07bc277f | 5751 | len = RX_MINLENRET(rx); |
| 3c8556c3 | 5752 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
| 1b6737cc | 5753 | const char c = *SvPV_nolen_const(csv); |
| a0d0e21e | 5754 | while (--limit) { |
| a6e20a40 AL |
5755 | for (m = s; m < strend && *m != c; m++) |
| 5756 | ; | |
| a0d0e21e LW |
5757 | if (m >= strend) |
| 5758 | break; | |
| c1a7495a BB |
5759 | if (gimme_scalar) { |
| 5760 | iters++; | |
| 5761 | if (m-s == 0) | |
| 5762 | trailing_empty++; | |
| 5763 | else | |
| 5764 | trailing_empty = 0; | |
| 5765 | } else { | |
| 5766 | dstr = newSVpvn_flags(s, m-s, | |
| 5767 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5768 | XPUSHs(dstr); | |
| 5769 | } | |
| 93f04dac JH |
5770 | /* The rx->minlen is in characters but we want to step |
| 5771 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
5772 | if (do_utf8) |
| 5773 | s = (char*)utf8_hop((U8*)m, len); | |
| 5774 | else | |
| 5775 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e LW |
5776 | } |
| 5777 | } | |
| 5778 | else { | |
| a0d0e21e | 5779 | while (s < strend && --limit && |
| f722798b | 5780 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
| 7fba1cd6 | 5781 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
| a0d0e21e | 5782 | { |
| c1a7495a BB |
5783 | if (gimme_scalar) { |
| 5784 | iters++; | |
| 5785 | if (m-s == 0) | |
| 5786 | trailing_empty++; | |
| 5787 | else | |
| 5788 | trailing_empty = 0; | |
| 5789 | } else { | |
| 5790 | dstr = newSVpvn_flags(s, m-s, | |
| 5791 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5792 | XPUSHs(dstr); | |
| 5793 | } | |
| 93f04dac JH |
5794 | /* The rx->minlen is in characters but we want to step |
| 5795 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
5796 | if (do_utf8) |
| 5797 | s = (char*)utf8_hop((U8*)m, len); | |
| 5798 | else | |
| 5799 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e | 5800 | } |
| 463ee0b2 | 5801 | } |
| 463ee0b2 | 5802 | } |
| a0d0e21e | 5803 | else { |
| 07bc277f | 5804 | maxiters += slen * RX_NPARENS(rx); |
| 080c2dec | 5805 | while (s < strend && --limit) |
| bbce6d69 | 5806 | { |
| 1b6737cc | 5807 | I32 rex_return; |
| 080c2dec | 5808 | PUTBACK; |
| f9f4320a | 5809 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1 , |
| 727b7506 | 5810 | sv, NULL, 0); |
| 080c2dec | 5811 | SPAGAIN; |
| 1b6737cc | 5812 | if (rex_return == 0) |
| 080c2dec | 5813 | break; |
| d9f97599 | 5814 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
| 07bc277f | 5815 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
| a0d0e21e LW |
5816 | m = s; |
| 5817 | s = orig; | |
| 07bc277f | 5818 | orig = RX_SUBBEG(rx); |
| a0d0e21e LW |
5819 | s = orig + (m - s); |
| 5820 | strend = s + (strend - m); | |
| 5821 | } | |
| 07bc277f | 5822 | m = RX_OFFS(rx)[0].start + orig; |
| c1a7495a BB |
5823 | |
| 5824 | if (gimme_scalar) { | |
| 5825 | iters++; | |
| 5826 | if (m-s == 0) | |
| 5827 | trailing_empty++; | |
| 5828 | else | |
| 5829 | trailing_empty = 0; | |
| 5830 | } else { | |
| 5831 | dstr = newSVpvn_flags(s, m-s, | |
| 5832 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5833 | XPUSHs(dstr); | |
| 5834 | } | |
| 07bc277f | 5835 | if (RX_NPARENS(rx)) { |
| 1b6737cc | 5836 | I32 i; |
| 07bc277f NC |
5837 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
| 5838 | s = RX_OFFS(rx)[i].start + orig; | |
| 5839 | m = RX_OFFS(rx)[i].end + orig; | |
| 6de67870 JP |
5840 | |
| 5841 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
| 5842 | parens that didn't match -- they should be set to | |
| 5843 | undef, not the empty string */ | |
| c1a7495a BB |
5844 | if (gimme_scalar) { |
| 5845 | iters++; | |
| 5846 | if (m-s == 0) | |
| 5847 | trailing_empty++; | |
| 5848 | else | |
| 5849 | trailing_empty = 0; | |
| 5850 | } else { | |
| 5851 | if (m >= orig && s >= orig) { | |
| 5852 | dstr = newSVpvn_flags(s, m-s, | |
| 5853 | (do_utf8 ? SVf_UTF8 : 0) | |
| 5854 | | make_mortal); | |
| 5855 | } | |
| 5856 | else | |
| 5857 | dstr = &PL_sv_undef; /* undef, not "" */ | |
| 5858 | XPUSHs(dstr); | |
| 748a9306 | 5859 | } |
| c1a7495a | 5860 | |
| a0d0e21e LW |
5861 | } |
| 5862 | } | |
| 07bc277f | 5863 | s = RX_OFFS(rx)[0].end + orig; |
| a0d0e21e | 5864 | } |
| 79072805 | 5865 | } |
| 8ec5e241 | 5866 | |
| c1a7495a BB |
5867 | if (!gimme_scalar) { |
| 5868 | iters = (SP - PL_stack_base) - base; | |
| 5869 | } | |
| a0d0e21e | 5870 | if (iters > maxiters) |
| cea2e8a9 | 5871 | DIE(aTHX_ "Split loop"); |
| 8ec5e241 | 5872 | |
| a0d0e21e LW |
5873 | /* keep field after final delim? */ |
| 5874 | if (s < strend || (iters && origlimit)) { | |
| c1a7495a BB |
5875 | if (!gimme_scalar) { |
| 5876 | const STRLEN l = strend - s; | |
| 5877 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5878 | XPUSHs(dstr); | |
| 5879 | } | |
| a0d0e21e | 5880 | iters++; |
| 79072805 | 5881 | } |
| a0d0e21e | 5882 | else if (!origlimit) { |
| c1a7495a BB |
5883 | if (gimme_scalar) { |
| 5884 | iters -= trailing_empty; | |
| 5885 | } else { | |
| 5886 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
| 5887 | if (TOPs && !make_mortal) | |
| 5888 | sv_2mortal(TOPs); | |
| 5889 | *SP-- = &PL_sv_undef; | |
| 5890 | iters--; | |
| 5891 | } | |
| 89900bd3 | 5892 | } |
| a0d0e21e | 5893 | } |
| 8ec5e241 | 5894 | |
| 8b7059b1 DM |
5895 | PUTBACK; |
| 5896 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
| 5897 | SPAGAIN; | |
| a0d0e21e | 5898 | if (realarray) { |
| 8ec5e241 | 5899 | if (!mg) { |
| 1c0b011c NIS |
5900 | if (SvSMAGICAL(ary)) { |
| 5901 | PUTBACK; | |
| ad64d0ec | 5902 | mg_set(MUTABLE_SV(ary)); |
| 1c0b011c NIS |
5903 | SPAGAIN; |
| 5904 | } | |
| 5905 | if (gimme == G_ARRAY) { | |
| 5906 | EXTEND(SP, iters); | |
| 5907 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
| 5908 | SP += iters; | |
| 5909 | RETURN; | |
| 5910 | } | |
| 8ec5e241 | 5911 | } |
| 1c0b011c | 5912 | else { |
| fb73857a | 5913 | PUTBACK; |
| d343c3ef | 5914 | ENTER_with_name("call_PUSH"); |
| 864dbfa3 | 5915 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| d343c3ef | 5916 | LEAVE_with_name("call_PUSH"); |
| fb73857a | 5917 | SPAGAIN; |
| 8ec5e241 | 5918 | if (gimme == G_ARRAY) { |
| 1b6737cc | 5919 | I32 i; |
| 8ec5e241 NIS |
5920 | /* EXTEND should not be needed - we just popped them */ |
| 5921 | EXTEND(SP, iters); | |
| 5922 | for (i=0; i < iters; i++) { | |
| 5923 | SV **svp = av_fetch(ary, i, FALSE); | |
| 3280af22 | 5924 | PUSHs((svp) ? *svp : &PL_sv_undef); |
| 8ec5e241 | 5925 | } |
| 1c0b011c NIS |
5926 | RETURN; |
| 5927 | } | |
| a0d0e21e LW |
5928 | } |
| 5929 | } | |
| 5930 | else { | |
| 5931 | if (gimme == G_ARRAY) | |
| 5932 | RETURN; | |
| 5933 | } | |
| 7f18b612 YST |
5934 | |
| 5935 | GETTARGET; | |
| 5936 | PUSHi(iters); | |
| 5937 | RETURN; | |
| 79072805 | 5938 | } |
| 85e6fe83 | 5939 | |
| c5917253 NC |
5940 | PP(pp_once) |
| 5941 | { | |
| 5942 | dSP; | |
| 5943 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
| 5944 | ||
| 5945 | if (SvPADSTALE(sv)) { | |
| 5946 | /* First time. */ | |
| 5947 | SvPADSTALE_off(sv); | |
| 5948 | RETURNOP(cLOGOP->op_other); | |
| 5949 | } | |
| 5950 | RETURNOP(cLOGOP->op_next); | |
| 5951 | } | |
| 5952 | ||
| c0329465 MB |
5953 | PP(pp_lock) |
| 5954 | { | |
| 97aff369 | 5955 | dVAR; |
| 39644a26 | 5956 | dSP; |
| c0329465 | 5957 | dTOPss; |
| e55aaa0e | 5958 | SV *retsv = sv; |
| 076a2a80 | 5959 | assert(SvTYPE(retsv) != SVt_PVCV); |
| 68795e93 | 5960 | SvLOCK(sv); |
| 076a2a80 | 5961 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV) { |
| e55aaa0e MB |
5962 | retsv = refto(retsv); |
| 5963 | } | |
| 5964 | SETs(retsv); | |
| c0329465 MB |
5965 | RETURN; |
| 5966 | } | |
| a863c7d1 | 5967 | |
| 65bca31a NC |
5968 | |
| 5969 | PP(unimplemented_op) | |
| 5970 | { | |
| 97aff369 | 5971 | dVAR; |
| 65bca31a NC |
5972 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", OP_NAME(PL_op), |
| 5973 | PL_op->op_type); | |
| bb4c52e0 | 5974 | return NORMAL; |
| 65bca31a NC |
5975 | } |
| 5976 | ||
| 867fa1e2 YO |
5977 | PP(pp_boolkeys) |
| 5978 | { | |
| 5979 | dVAR; | |
| 5980 | dSP; | |
| 5981 | HV * const hv = (HV*)POPs; | |
| 5982 | ||
| 5983 | if (SvRMAGICAL(hv)) { | |
| 5984 | MAGIC * const mg = mg_find((SV*)hv, PERL_MAGIC_tied); | |
| 5985 | if (mg) { | |
| 5986 | XPUSHs(magic_scalarpack(hv, mg)); | |
| 5987 | RETURN; | |
| 5988 | } | |
| 5989 | } | |
| 5990 | ||
| 5991 | XPUSHs(boolSV(HvKEYS(hv) != 0)); | |
| 5992 | RETURN; | |
| 5993 | } | |
| 5994 | ||
| e609e586 NC |
5995 | /* |
| 5996 | * Local variables: | |
| 5997 | * c-indentation-style: bsd | |
| 5998 | * c-basic-offset: 4 | |
| 5999 | * indent-tabs-mode: t | |
| 6000 | * End: | |
| 6001 | * | |
| 37442d52 RGS |
6002 | * ex: set ts=8 sts=4 sw=4 noet: |
| 6003 | */ |