X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/bb7a0f5422600fd7de7806825a1300a577b7e61f..1456b5bcbb5972c952d3db483e262e10ea69f2a6:/doop.c diff --git a/doop.c b/doop.c index 45437e1..903144c 100644 --- a/doop.c +++ b/doop.c @@ -1,7 +1,7 @@ /* doop.c * - * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - * 2000, 2001, 2002, 2004, 2005, 2006, by Larry Wall and others + * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, + * 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -9,7 +9,9 @@ */ /* - * "'So that was the job I felt I had to do when I started,' thought Sam." + * 'So that was the job I felt I had to do when I started,' thought Sam. + * + * [p.934 of _The Lord of the Rings_, VI/iii: "Mount Doom"] */ /* This file contains some common functions needed to carry out certain @@ -33,8 +35,10 @@ S_do_trans_simple(pTHX_ SV * const sv) STRLEN len; U8 *s = (U8*)SvPV(sv,len); U8 * const send = s+len; - const short * const tbl = (short*)cPVOP->op_pv; + + PERL_ARGS_ASSERT_DO_TRANS_SIMPLE; + if (!tbl) Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__); @@ -100,8 +104,10 @@ S_do_trans_count(pTHX_ SV * const sv) const U8 *s = (const U8*)SvPV_const(sv, len); const U8 * const send = s + len; I32 matches = 0; - const short * const tbl = (short*)cPVOP->op_pv; + + PERL_ARGS_ASSERT_DO_TRANS_COUNT; + if (!tbl) Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__); @@ -136,8 +142,10 @@ S_do_trans_complex(pTHX_ SV * const sv) U8 *s = (U8*)SvPV(sv, len); U8 * const send = s+len; I32 matches = 0; - const short * const tbl = (short*)cPVOP->op_pv; + + PERL_ARGS_ASSERT_DO_TRANS_COMPLEX; + if (!tbl) Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__); @@ -195,10 +203,6 @@ S_do_trans_complex(pTHX_ SV * const sv) if (complement && !del) rlen = tbl[0x100]; -#ifdef MACOS_TRADITIONAL -#define comp CoMP /* "comp" is a keyword in some compilers ... */ -#endif - if (PL_op->op_private & OPpTRANS_SQUASH) { UV pch = 0xfeedface; while (s < send) { @@ -306,15 +310,21 @@ S_do_trans_simple_utf8(pTHX_ SV * const sv) I32 matches = 0; const I32 grows = PL_op->op_private & OPpTRANS_GROWS; STRLEN len; - - SV* const rv = (SV*)cSVOP->op_sv; - HV* const hv = (HV*)SvRV(rv); + SV* const rv = +#ifdef USE_ITHREADS + PAD_SVl(cPADOP->op_padix); +#else + MUTABLE_SV(cSVOP->op_sv); +#endif + HV* const hv = MUTABLE_HV(SvRV(rv)); SV* const * svp = hv_fetchs(hv, "NONE", FALSE); const UV none = svp ? SvUV(*svp) : 0x7fffffff; const UV extra = none + 1; UV final = 0; U8 hibit = 0; + PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8; + s = (U8*)SvPV(sv, len); if (!SvUTF8(sv)) { const U8 *t = s; @@ -402,14 +412,20 @@ S_do_trans_count_utf8(pTHX_ SV * const sv) const U8 *send; I32 matches = 0; STRLEN len; - - SV* const rv = (SV*)cSVOP->op_sv; - HV* const hv = (HV*)SvRV(rv); + SV* const rv = +#ifdef USE_ITHREADS + PAD_SVl(cPADOP->op_padix); +#else + MUTABLE_SV(cSVOP->op_sv); +#endif + HV* const hv = MUTABLE_HV(SvRV(rv)); SV* const * const svp = hv_fetchs(hv, "NONE", FALSE); const UV none = svp ? SvUV(*svp) : 0x7fffffff; const UV extra = none + 1; U8 hibit = 0; + PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8; + s = (const U8*)SvPV_const(sv, len); if (!SvUTF8(sv)) { const U8 *t = s; @@ -447,8 +463,13 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv) const I32 squash = PL_op->op_private & OPpTRANS_SQUASH; const I32 del = PL_op->op_private & OPpTRANS_DELETE; const I32 grows = PL_op->op_private & OPpTRANS_GROWS; - SV * const rv = (SV*)cSVOP->op_sv; - HV * const hv = (HV*)SvRV(rv); + SV* const rv = +#ifdef USE_ITHREADS + PAD_SVl(cPADOP->op_padix); +#else + MUTABLE_SV(cSVOP->op_sv); +#endif + HV * const hv = MUTABLE_HV(SvRV(rv)); SV * const *svp = hv_fetchs(hv, "NONE", FALSE); const UV none = svp ? SvUV(*svp) : 0x7fffffff; const UV extra = none + 1; @@ -457,8 +478,10 @@ S_do_trans_complex_utf8(pTHX_ SV * const sv) STRLEN len; U8 *dstart, *dend; U8 hibit = 0; - U8 *s = (U8*)SvPV(sv, len); + + PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8; + if (!SvUTF8(sv)) { const U8 *t = s; const U8 * const e = s + len; @@ -606,11 +629,13 @@ Perl_do_trans(pTHX_ SV *sv) const I32 hasutf = (PL_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)); - if (SvREADONLY(sv)) { + PERL_ARGS_ASSERT_DO_TRANS; + + if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) { if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0); - if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) - Perl_croak(aTHX_ PL_no_modify); + if (SvREADONLY(sv)) + Perl_croak_no_modify(aTHX); } (void)SvPV_const(sv, len); if (!len) @@ -648,7 +673,7 @@ Perl_do_trans(pTHX_ SV *sv) } void -Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp) +Perl_do_join(pTHX_ register SV *sv, SV *delim, register SV **mark, register SV **sp) { dVAR; SV ** const oldmark = mark; @@ -656,7 +681,9 @@ Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **s register STRLEN len; STRLEN delimlen; - (void) SvPV_const(del, delimlen); /* stringify and get the delimlen */ + PERL_ARGS_ASSERT_DO_JOIN; + + (void) SvPV_const(delim, delimlen); /* stringify and get the delimlen */ /* SvCUR assumes it's SvPOK() and woe betide you if it's not. */ mark++; @@ -678,7 +705,7 @@ Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **s ++mark; } - sv_setpvn(sv, "", 0); + sv_setpvs(sv, ""); /* sv_setpv retains old UTF8ness [perl #24846] */ SvUTF8_off(sv); @@ -693,7 +720,7 @@ Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **s if (delimlen) { for (; items > 0; items--,mark++) { - sv_catsv(sv,del); + sv_catsv(sv,delim); sv_catsv(sv,*mark); } } @@ -712,6 +739,8 @@ Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg) const char * const pat = SvPV_const(*sarg, patlen); bool do_taint = FALSE; + PERL_ARGS_ASSERT_DO_SPRINTF; + SvUTF8_off(sv); if (DO_UTF8(*sarg)) SvUTF8_on(sv); @@ -726,25 +755,34 @@ UV Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) { dVAR; - STRLEN srclen, len, uoffset; + STRLEN srclen, len, uoffset, bitoffs = 0; const unsigned char *s = (const unsigned char *) SvPV_const(sv, srclen); UV retnum = 0; + PERL_ARGS_ASSERT_DO_VECGET; + if (offset < 0) - return retnum; + return 0; if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ Perl_croak(aTHX_ "Illegal number of bits in vec"); if (SvUTF8(sv)) (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE); - uoffset = offset*size; /* turn into bit offset */ - len = (uoffset + size + 7) / 8; /* required number of bytes */ + if (size < 8) { + bitoffs = ((offset%8)*size)%8; + uoffset = offset/(8/size); + } + else if (size > 8) + uoffset = offset*(size/8); + else + uoffset = offset; + + len = uoffset + (bitoffs + size + 7)/8; /* required number of bytes */ if (len > srclen) { if (size <= 8) retnum = 0; else { - uoffset >>= 3; /* turn into byte offset */ if (size == 16) { if (uoffset >= srclen) retnum = 0; @@ -769,9 +807,8 @@ Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) } #ifdef UV_IS_QUAD else if (size == 64) { - if (ckWARN(WARN_PORTABLE)) - Perl_warner(aTHX_ packWARN(WARN_PORTABLE), - "Bit vector size > 32 non-portable"); + Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), + "Bit vector size > 32 non-portable"); if (uoffset >= srclen) retnum = 0; else if (uoffset + 1 >= srclen) @@ -821,9 +858,8 @@ Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) } } else if (size < 8) - retnum = (s[uoffset >> 3] >> (uoffset & 7)) & ((1 << size) - 1); + retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1); else { - uoffset >>= 3; /* turn into byte offset */ if (size == 8) retnum = s[uoffset]; else if (size == 16) @@ -838,9 +874,8 @@ Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) s[uoffset + 3]; #ifdef UV_IS_QUAD else if (size == 64) { - if (ckWARN(WARN_PORTABLE)) - Perl_warner(aTHX_ packWARN(WARN_PORTABLE), - "Bit vector size > 32 non-portable"); + Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), + "Bit vector size > 32 non-portable"); retnum = ((UV) s[uoffset ] << 56) + ((UV) s[uoffset + 1] << 48) + @@ -865,7 +900,7 @@ void Perl_do_vecset(pTHX_ SV *sv) { dVAR; - register I32 offset; + register I32 offset, bitoffs = 0; register I32 size; register unsigned char *s; register UV lval; @@ -874,6 +909,8 @@ Perl_do_vecset(pTHX_ SV *sv) STRLEN len; SV * const targ = LvTARG(sv); + PERL_ARGS_ASSERT_DO_VECSET; + if (!targ) return; s = (unsigned char*)SvPV_force(targ, targlen); @@ -894,8 +931,14 @@ Perl_do_vecset(pTHX_ SV *sv) if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ Perl_croak(aTHX_ "Illegal number of bits in vec"); - offset *= size; /* turn into bit offset */ - len = (offset + size + 7) / 8; /* required number of bytes */ + if (size < 8) { + bitoffs = ((offset%8)*size)%8; + offset /= 8/size; + } + else if (size > 8) + offset *= size/8; + + len = offset + (bitoffs + size + 7)/8; /* required number of bytes */ if (len > targlen) { s = (unsigned char*)SvGROW(targ, len + 1); (void)memzero((char *)(s + targlen), len - targlen + 1); @@ -904,14 +947,11 @@ Perl_do_vecset(pTHX_ SV *sv) if (size < 8) { mask = (1 << size) - 1; - size = offset & 7; lval &= mask; - offset >>= 3; /* turn into byte offset */ - s[offset] &= ~(mask << size); - s[offset] |= lval << size; + s[offset] &= ~(mask << bitoffs); + s[offset] |= lval << bitoffs; } else { - offset >>= 3; /* turn into byte offset */ if (size == 8) s[offset ] = (U8)( lval & 0xff); else if (size == 16) { @@ -926,9 +966,8 @@ Perl_do_vecset(pTHX_ SV *sv) } #ifdef UV_IS_QUAD else if (size == 64) { - if (ckWARN(WARN_PORTABLE)) - Perl_warner(aTHX_ packWARN(WARN_PORTABLE), - "Bit vector size > 32 non-portable"); + Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), + "Bit vector size > 32 non-portable"); s[offset ] = (U8)((lval >> 56) & 0xff); s[offset+1] = (U8)((lval >> 48) & 0xff); s[offset+2] = (U8)((lval >> 40) & 0xff); @@ -950,20 +989,22 @@ Perl_do_chop(pTHX_ register SV *astr, register SV *sv) STRLEN len; char *s; + PERL_ARGS_ASSERT_DO_CHOP; + if (SvTYPE(sv) == SVt_PVAV) { register I32 i; - AV* const av = (AV*)sv; + AV *const av = MUTABLE_AV(sv); const I32 max = AvFILL(av); for (i = 0; i <= max; i++) { - sv = (SV*)av_fetch(av, i, FALSE); + sv = MUTABLE_SV(av_fetch(av, i, FALSE)); if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) do_chop(astr, sv); } return; } else if (SvTYPE(sv) == SVt_PVHV) { - HV* const hv = (HV*)sv; + HV* const hv = MUTABLE_HV(sv); HE* entry; (void)hv_iterinit(hv); while ((entry = hv_iternext(hv))) @@ -976,7 +1017,7 @@ Perl_do_chop(pTHX_ register SV *astr, register SV *sv) sv_force_normal_flags(sv, 0); } if (SvREADONLY(sv)) - Perl_croak(aTHX_ PL_no_modify); + Perl_croak_no_modify(aTHX); } if (PL_encoding && !SvUTF8(sv)) { @@ -987,7 +1028,7 @@ Perl_do_chop(pTHX_ register SV *astr, register SV *sv) s = SvPV(sv, len); if (len && !SvPOK(sv)) - s = SvPV_force(sv, len); + s = SvPV_force_nomg(sv, len); if (DO_UTF8(sv)) { if (s && len) { char * const send = s + len; @@ -1004,7 +1045,7 @@ Perl_do_chop(pTHX_ register SV *astr, register SV *sv) } } else - sv_setpvn(astr, "", 0); + sv_setpvs(astr, ""); } else if (s && len) { s += --len; @@ -1015,7 +1056,7 @@ Perl_do_chop(pTHX_ register SV *astr, register SV *sv) SvNIOK_off(sv); } else - sv_setpvn(astr, "", 0); + sv_setpvs(astr, ""); SvSETMAGIC(sv); } @@ -1029,6 +1070,8 @@ Perl_do_chomp(pTHX_ register SV *sv) char *temp_buffer = NULL; SV* svrecode = NULL; + PERL_ARGS_ASSERT_DO_CHOMP; + if (RsSNARF(PL_rs)) return 0; if (RsRECORD(PL_rs)) @@ -1036,18 +1079,18 @@ Perl_do_chomp(pTHX_ register SV *sv) count = 0; if (SvTYPE(sv) == SVt_PVAV) { register I32 i; - AV* const av = (AV*)sv; + AV *const av = MUTABLE_AV(sv); const I32 max = AvFILL(av); for (i = 0; i <= max; i++) { - sv = (SV*)av_fetch(av, i, FALSE); + sv = MUTABLE_SV(av_fetch(av, i, FALSE)); if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) count += do_chomp(sv); } return count; } else if (SvTYPE(sv) == SVt_PVHV) { - HV* const hv = (HV*)sv; + HV* const hv = MUTABLE_HV(sv); HE* entry; (void)hv_iterinit(hv); while ((entry = hv_iternext(hv))) @@ -1060,7 +1103,7 @@ Perl_do_chomp(pTHX_ register SV *sv) sv_force_normal_flags(sv, 0); } if (SvREADONLY(sv)) - Perl_croak(aTHX_ PL_no_modify); + Perl_croak_no_modify(aTHX); } if (PL_encoding) { @@ -1148,8 +1191,7 @@ Perl_do_chomp(pTHX_ register SV *sv) } nope: - if (svrecode) - SvREFCNT_dec(svrecode); + SvREFCNT_dec(svrecode); Safefree(temp_buffer); return count; @@ -1173,19 +1215,45 @@ Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) STRLEN lensave; const char *lsave; const char *rsave; - const bool left_utf = DO_UTF8(left); - const bool right_utf = DO_UTF8(right); + bool left_utf; + bool right_utf; STRLEN needlen = 0; - if (left_utf && !right_utf) - sv_utf8_upgrade(right); - else if (!left_utf && right_utf) - sv_utf8_upgrade(left); + PERL_ARGS_ASSERT_DO_VOP; if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) - sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ - lsave = lc = SvPV_nomg_const(left, leftlen); + sv_setpvs(sv, ""); /* avoid undef warning on |= and ^= */ + if (sv == left) { + lsave = lc = SvPV_force_nomg(left, leftlen); + } + else { + lsave = lc = SvPV_nomg_const(left, leftlen); + SvPV_force_nomg_nolen(sv); + } rsave = rc = SvPV_nomg_const(right, rightlen); + + /* This need to come after SvPV to ensure that string overloading has + fired off. */ + + left_utf = DO_UTF8(left); + right_utf = DO_UTF8(right); + + if (left_utf && !right_utf) { + /* Avoid triggering overloading again by using temporaries. + Maybe there should be a variant of sv_utf8_upgrade that takes pvn + */ + right = newSVpvn_flags(rsave, rightlen, SVs_TEMP); + sv_utf8_upgrade(right); + rsave = rc = SvPV_nomg_const(right, rightlen); + right_utf = TRUE; + } + else if (!left_utf && right_utf) { + left = newSVpvn_flags(lsave, leftlen, SVs_TEMP); + sv_utf8_upgrade(left); + lsave = lc = SvPV_nomg_const(left, leftlen); + left_utf = TRUE; + } + len = leftlen < rightlen ? leftlen : rightlen; lensave = len; SvCUR_set(sv, len); @@ -1363,7 +1431,7 @@ Perl_do_kv(pTHX) { dVAR; dSP; - HV * const hv = (HV*)POPs; + HV * const hv = MUTABLE_HV(POPs); HV *keys; register HE *entry; const I32 gimme = GIMME_V; @@ -1388,31 +1456,26 @@ Perl_do_kv(pTHX) RETURN; if (gimme == G_SCALAR) { - IV i; - dTARGET; - if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */ - if (SvTYPE(TARG) < SVt_PVLV) { - sv_upgrade(TARG, SVt_PVLV); - sv_magic(TARG, NULL, PERL_MAGIC_nkeys, NULL, 0); - } - LvTYPE(TARG) = 'k'; - if (LvTARG(TARG) != (SV*)keys) { - if (LvTARG(TARG)) - SvREFCNT_dec(LvTARG(TARG)); - LvTARG(TARG) = SvREFCNT_inc_simple(keys); - } - PUSHs(TARG); - RETURN; + SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ + sv_magic(ret, NULL, PERL_MAGIC_nkeys, NULL, 0); + LvTYPE(ret) = 'k'; + LvTARG(ret) = SvREFCNT_inc_simple(keys); + PUSHs(ret); } - - if (! SvTIED_mg((SV*)keys, PERL_MAGIC_tied)) - i = HvKEYS(keys); else { - i = 0; - while (hv_iternext(keys)) i++; + IV i; + dTARGET; + + if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) { + i = HvKEYS(keys); + } + else { + i = 0; + while (hv_iternext(keys)) i++; + } + PUSHi( i ); } - PUSHi( i ); RETURN; }