X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=doop.c;h=b75ffaa69f9d0ebb6d0013681d2f7a27b31db241;hb=23f3aea032e3289acf8e6a178372c27e8e03f4a0;hp=4a7430989cebcbe4280457752d90850ecf2e654b;hpb=83ed808bf8acd3f30d6118cf9b35873eeeb9fac3;p=p5sagit%2Fp5-mst-13.2.git diff --git a/doop.c b/doop.c index 4a74309..b75ffaa 100644 --- a/doop.c +++ b/doop.c @@ -21,16 +21,17 @@ #endif #endif - -#define HALF_UPGRADE(start,end) { \ - U8* new; \ - STRLEN len; \ - len = end-start; \ - new = bytes_to_utf8(start, &len); \ - Copy(new,start,len,U8*); \ - end = start + len; \ - } - +#define HALF_UTF8_UPGRADE(start,end) \ + STMT_START { \ + if ((start)<(end)) { \ + U8* NeWsTr; \ + STRLEN LeN = (end) - (start); \ + NeWsTr = bytes_to_utf8(start, &LeN); \ + Safefree(start); \ + (start) = NeWsTr; \ + (end) = (start) + LeN; \ + } \ + } STMT_END STATIC I32 S_do_trans_simple(pTHX_ SV *sv) @@ -55,14 +56,15 @@ S_do_trans_simple(pTHX_ SV *sv) /* First, take care of non-UTF8 input strings, because they're easy */ if (!sutf) { - while (s < send) { + while (s < send) { if ((ch = tbl[*s]) >= 0) { - matches++; - *s++ = ch; - } else - s++; - } - SvSETMAGIC(sv); + matches++; + *s++ = ch; + } + else + s++; + } + SvSETMAGIC(sv); return matches; } @@ -75,23 +77,24 @@ S_do_trans_simple(pTHX_ SV *sv) ulen = 1; /* Need to check this, otherwise 128..255 won't match */ - c = utf8_to_uv(s, &ulen); + c = utf8_to_uv_chk(s, &ulen, 0); if (c < 0x100 && (ch = tbl[(short)c]) >= 0) { matches++; - if (ch < 0x80) + if (ch < 0x80) *d++ = ch; - else + else d = uv_to_utf8(d,ch); s += ulen; - } else { /* No match -> copy */ + } + else { /* No match -> copy */ while (ulen--) *d++ = *s++; } } - *d='\0'; - sv_setpvn(sv, dstart, d - dstart); + *d = '\0'; + sv_setpvn(sv, (const char*)dstart, d - dstart); + Safefree(dstart); SvUTF8_on(sv); - SvLEN_set(sv, 2*len+1); SvSETMAGIC(sv); return matches; } @@ -116,18 +119,18 @@ S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */ while (s < send) { if (hasutf && *s & 0x80) - s+=UTF8SKIP(s); + s += UTF8SKIP(s); else { UV c; I32 ulen; ulen = 1; if (hasutf) - c = utf8_to_uv(s,&ulen); + c = utf8_to_uv_chk(s,&ulen, 0); else c = *s; if (c < 0x100 && tbl[c] >= 0) matches++; - s+=ulen; + s += ulen; } } @@ -160,7 +163,7 @@ S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */ while (s < send) { if (hasutf && *s & 0x80) - s+=UTF8SKIP(s); + s += UTF8SKIP(s); else { if ((ch = tbl[*s]) >= 0) { *d = ch; @@ -170,7 +173,7 @@ S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */ else p = d++; } - else if (ch == -1) /* -1 is unmapped character */ + else if (ch == -1) /* -1 is unmapped character */ *d++ = *s; /* -2 is delete character */ s++; } @@ -179,20 +182,20 @@ S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */ else { while (s < send) { if (hasutf && *s & 0x80) - s+=UTF8SKIP(s); + s += UTF8SKIP(s); else { if ((ch = tbl[*s]) >= 0) { *d = ch; matches++; d++; } - else if (ch == -1) /* -1 is unmapped character */ + else if (ch == -1) /* -1 is unmapped character */ *d++ = *s; /* -2 is delete character */ s++; } } } - matches += send - d; /* account for disappeared chars */ + matches += send - d; /* account for disappeared chars */ *d = '\0'; SvCUR_set(sv, d - (U8*)SvPVX(sv)); SvSETMAGIC(sv); @@ -219,7 +222,7 @@ S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */ UV extra = none + 1; UV final; UV uv; - I32 isutf; + I32 isutf; I32 howmany; isutf = SvUTF8(sv); @@ -238,32 +241,32 @@ S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */ if ((uv = swash_fetch(rv, s)) < none) { s += UTF8SKIP(s); matches++; - if (uv & 0x80 && !isutf++) - HALF_UPGRADE(dstart,d); + if ((uv & 0x80) && !isutf++) + HALF_UTF8_UPGRADE(dstart,d); d = uv_to_utf8(d, uv); } else if (uv == none) { int i; - i = UTF8SKIP(s); + i = UTF8SKIP(s); if (i > 1 && !isutf++) - HALF_UPGRADE(dstart,d); + HALF_UTF8_UPGRADE(dstart,d); while(i--) - *d++ = *s++; + *d++ = *s++; } else if (uv == extra) { int i; - i = UTF8SKIP(s); + i = UTF8SKIP(s); s += i; matches++; - if (i > 1 && !isutf++) - HALF_UPGRADE(dstart,d); + if (i > 1 && !isutf++) + HALF_UTF8_UPGRADE(dstart,d); d = uv_to_utf8(d, final); } else s += UTF8SKIP(s); } *d = '\0'; - sv_setpvn(sv, dstart, d - dstart); + sv_setpvn(sv, (const char*)dstart, d - dstart); SvSETMAGIC(sv); if (isutf) SvUTF8_on(sv); @@ -334,7 +337,7 @@ S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */ if (squash) { UV puv = 0xfeedface; while (s < send) { - if (SvUTF8(sv)) + if (SvUTF8(sv)) uv = swash_fetch(rv, s); else { U8 tmpbuf[2]; @@ -351,37 +354,37 @@ S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */ if (uv < none) { matches++; if (uv != puv) { - if (uv & 0x80 && !isutf++) - HALF_UPGRADE(dst,d); - d = uv_to_utf8(d, uv); + if ((uv & 0x80) && !isutf++) + HALF_UTF8_UPGRADE(dst,d); + d = uv_to_utf8(d, uv); puv = uv; } - s += UTF8SKIP(s); + s += UTF8SKIP(s); continue; } else if (uv == none) { /* "none" is unmapped character */ - I32 ulen; - *d++ = (U8)utf8_to_uv(s, &ulen); - s += ulen; + I32 ulen; + *d++ = (U8)utf8_to_uv_chk(s, &ulen, 0); + s += ulen; puv = 0xfeedface; continue; } else if (uv == extra && !del) { matches++; if (uv != puv) { - d = uv_to_utf8(d, final); + d = uv_to_utf8(d, final); puv = final; } - s += UTF8SKIP(s); + s += UTF8SKIP(s); continue; } - matches++; /* "none+1" is delete character */ - s += UTF8SKIP(s); + matches++; /* "none+1" is delete character */ + s += UTF8SKIP(s); } } else { while (s < send) { - if (SvUTF8(sv)) + if (SvUTF8(sv)) uv = swash_fetch(rv, s); else { U8 tmpbuf[2]; @@ -396,24 +399,24 @@ S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */ } if (uv < none) { matches++; - d = uv_to_utf8(d, uv); - s += UTF8SKIP(s); + d = uv_to_utf8(d, uv); + s += UTF8SKIP(s); continue; } else if (uv == none) { /* "none" is unmapped character */ - I32 ulen; - *d++ = (U8)utf8_to_uv(s, &ulen); - s += ulen; + I32 ulen; + *d++ = (U8)utf8_to_uv_chk(s, &ulen, 0); + s += ulen; continue; } else if (uv == extra && !del) { matches++; - d = uv_to_utf8(d, final); - s += UTF8SKIP(s); + d = uv_to_utf8(d, final); + s += UTF8SKIP(s); continue; } - matches++; /* "none+1" is delete character */ - s += UTF8SKIP(s); + matches++; /* "none+1" is delete character */ + s += UTF8SKIP(s); } } if (dst) @@ -432,7 +435,7 @@ Perl_do_trans(pTHX_ SV *sv) { dTHR; STRLEN len; - I32 hasutf = (PL_op->op_private & + I32 hasutf = (PL_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)); if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) @@ -450,19 +453,19 @@ Perl_do_trans(pTHX_ SV *sv) switch (PL_op->op_private & ~hasutf & 63) { case 0: - if (hasutf) - return do_trans_simple_utf8(sv); - else - return do_trans_simple(sv); + if (hasutf) + return do_trans_simple_utf8(sv); + else + return do_trans_simple(sv); case OPpTRANS_IDENTICAL: - if (hasutf) - return do_trans_count_utf8(sv); - else - return do_trans_count(sv); + if (hasutf) + return do_trans_count_utf8(sv); + else + return do_trans_count(sv); default: - if (hasutf) + if (hasutf) return do_trans_complex_utf8(sv); else return do_trans_complex(sv); @@ -484,7 +487,7 @@ Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **s (void)SvUPGRADE(sv, SVt_PV); if (SvLEN(sv) < len + items) { /* current length is way too short */ while (items-- > 0) { - if (*mark && !SvGMAGICAL(*mark) && SvOK(*mark)) { + if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) { SvPV(*mark, tmplen); len += tmplen; } @@ -534,7 +537,7 @@ Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg) SvTAINTED_on(sv); } -/* XXX SvUTF8 support missing! */ +/* currently converts input to bytes if possible, but doesn't sweat failure */ UV Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) { @@ -544,8 +547,13 @@ Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) if (offset < 0) return retnum; - if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ + 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); + } + offset *= size; /* turn into bit offset */ len = (offset + size + 7) / 8; /* required number of bytes */ if (len > srclen) { @@ -617,7 +625,7 @@ Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) ((UV) s[offset + 4] << 24) + ((UV) s[offset + 5] << 16); else - retnum = + retnum = ((UV) s[offset ] << 56) + ((UV) s[offset + 1] << 48) + ((UV) s[offset + 2] << 40) + @@ -667,7 +675,10 @@ Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) return retnum; } -/* XXX SvUTF8 support missing! */ +/* currently converts input to bytes if possible but doesn't sweat failures, + * although it does ensure that the string it clobbers is not marked as + * utf8-valid any more + */ void Perl_do_vecset(pTHX_ SV *sv) { @@ -683,13 +694,23 @@ Perl_do_vecset(pTHX_ SV *sv) if (!targ) return; s = (unsigned char*)SvPV_force(targ, targlen); + if (SvUTF8(targ)) { + /* This is handled by the SvPOK_only below... + if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE)) + SvUTF8_off(targ); + */ + (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE); + } + (void)SvPOK_only(targ); lval = SvUV(sv); offset = LvTARGOFF(sv); + if (offset < 0) + Perl_croak(aTHX_ "Assigning to negative offset in vec"); size = LvTARGLEN(sv); - if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ + 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 (len > targlen) { @@ -697,7 +718,7 @@ Perl_do_vecset(pTHX_ SV *sv) (void)memzero((char *)(s + targlen), len - targlen + 1); SvCUR_set(targ, len); } - + if (size < 8) { mask = (1 << size) - 1; size = offset & 7; @@ -746,7 +767,7 @@ Perl_do_chop(pTHX_ register SV *astr, register SV *sv) STRLEN len; char *s; dTHR; - + if (SvTYPE(sv) == SVt_PVAV) { register I32 i; I32 max; @@ -880,7 +901,7 @@ Perl_do_chomp(pTHX_ register SV *sv) nope: SvSETMAGIC(sv); return count; -} +} void Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) @@ -902,6 +923,7 @@ Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) char *rsave; bool left_utf = DO_UTF8(left); bool right_utf = DO_UTF8(right); + I32 needlen; if (left_utf && !right_utf) sv_utf8_upgrade(right); @@ -914,17 +936,23 @@ Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) rsave = rc = SvPV(right, rightlen); len = leftlen < rightlen ? leftlen : rightlen; lensave = len; - if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { + if ((left_utf || right_utf) && (sv == left || sv == right)) { + needlen = optype == OP_BIT_AND ? len : leftlen + rightlen; + Newz(801, dc, needlen + 1, char); + } + else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { STRLEN n_a; dc = SvPV_force(sv, n_a); if (SvCUR(sv) < len) { dc = SvGROW(sv, len + 1); (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); } + if (optype != OP_BIT_AND && (left_utf || right_utf)) + dc = SvGROW(sv, leftlen + rightlen + 1); } else { - I32 needlen = ((optype == OP_BIT_AND) - ? len : (leftlen > rightlen ? leftlen : rightlen)); + needlen = ((optype == OP_BIT_AND) + ? len : (leftlen > rightlen ? leftlen : rightlen)); Newz(801, dc, needlen + 1, char); (void)sv_usepvn(sv, dc, needlen); dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ @@ -933,35 +961,33 @@ Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) (void)SvPOK_only(sv); if (left_utf || right_utf) { UV duc, luc, ruc; + char *dcsave = dc; STRLEN lulen = leftlen; STRLEN rulen = rightlen; - STRLEN dulen = 0; I32 ulen; - if (optype != OP_BIT_AND) - dc = SvGROW(sv, leftlen+rightlen+1); - switch (optype) { case OP_BIT_AND: while (lulen && rulen) { - luc = utf8_to_uv((U8*)lc, &ulen); + luc = utf8_to_uv_chk((U8*)lc, &ulen, 0); lc += ulen; lulen -= ulen; - ruc = utf8_to_uv((U8*)rc, &ulen); + ruc = utf8_to_uv_chk((U8*)rc, &ulen, 0); rc += ulen; rulen -= ulen; duc = luc & ruc; dc = (char*)uv_to_utf8((U8*)dc, duc); } - dulen = dc - SvPVX(sv); - SvCUR_set(sv, dulen); + if (sv == left || sv == right) + (void)sv_usepvn(sv, dcsave, needlen); + SvCUR_set(sv, dc - dcsave); break; case OP_BIT_XOR: while (lulen && rulen) { - luc = utf8_to_uv((U8*)lc, &ulen); + luc = utf8_to_uv_chk((U8*)lc, &ulen, 0); lc += ulen; lulen -= ulen; - ruc = utf8_to_uv((U8*)rc, &ulen); + ruc = utf8_to_uv_chk((U8*)rc, &ulen, 0); rc += ulen; rulen -= ulen; duc = luc ^ ruc; @@ -970,18 +996,19 @@ Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) goto mop_up_utf; case OP_BIT_OR: while (lulen && rulen) { - luc = utf8_to_uv((U8*)lc, &ulen); + luc = utf8_to_uv_chk((U8*)lc, &ulen, 0); lc += ulen; lulen -= ulen; - ruc = utf8_to_uv((U8*)rc, &ulen); + ruc = utf8_to_uv_chk((U8*)rc, &ulen, 0); rc += ulen; rulen -= ulen; duc = luc | ruc; dc = (char*)uv_to_utf8((U8*)dc, duc); } mop_up_utf: - dulen = dc - SvPVX(sv); - SvCUR_set(sv, dulen); + if (sv == left || sv == right) + (void)sv_usepvn(sv, dcsave, needlen); + SvCUR_set(sv, dc - dcsave); if (rulen) sv_catpvn(sv, rc, rulen); else if (lulen) @@ -1080,8 +1107,8 @@ Perl_do_kv(pTHX) I32 dokeys = (PL_op->op_type == OP_KEYS); I32 dovalues = (PL_op->op_type == OP_VALUES); I32 realhv = (SvTYPE(hv) == SVt_PVHV); - - if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV) + + if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV) dokeys = dovalues = TRUE; if (!hv) {