X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/463ee0b2acbd047c27e8b5393cdd8398881824c5..db618c41a27cbc531951f800a5fa5878ef822de0:/doop.c diff --git a/doop.c b/doop.c index fa43e37..ad626ca 100644 --- a/doop.c +++ b/doop.c @@ -1,140 +1,636 @@ -/* $RCSfile: doarg.c,v $$Revision: 4.1 $$Date: 92/08/07 17:19:37 $ +/* doop.c * - * Copyright (c) 1991, Larry Wall + * Copyright (c) 1991-1999, Larry Wall * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * - * $Log: doarg.c,v $ - * Revision 4.1 92/08/07 17:19:37 lwall - * Stage 6 Snapshot - * - * Revision 4.0.1.7 92/06/11 21:07:11 lwall - * patch34: join with null list attempted negative allocation - * patch34: sprintf("%6.4s", "abcdefg") didn't print "abcd " - * - * Revision 4.0.1.6 92/06/08 12:34:30 lwall - * patch20: removed implicit int declarations on funcions - * patch20: pattern modifiers i and o didn't interact right - * patch20: join() now pre-extends target string to avoid excessive copying - * patch20: fixed confusion between a *var's real name and its effective name - * patch20: subroutines didn't localize $`, $&, $', $1 et al correctly - * patch20: usersub routines didn't reclaim temp values soon enough - * patch20: ($<,$>) = ... didn't work on some architectures - * patch20: added Atari ST portability - * - * Revision 4.0.1.5 91/11/11 16:31:58 lwall - * patch19: added little-endian pack/unpack options - * - * Revision 4.0.1.4 91/11/05 16:35:06 lwall - * patch11: /$foo/o optimizer could access deallocated data - * patch11: minimum match length calculation in regexp is now cumulative - * patch11: added some support for 64-bit integers - * patch11: prepared for ctype implementations that don't define isascii() - * patch11: sprintf() now supports any length of s field - * patch11: indirect subroutine calls through magic vars (e.g. &$1) didn't work - * patch11: defined(&$foo) and undef(&$foo) didn't work - * - * Revision 4.0.1.3 91/06/10 01:18:41 lwall - * patch10: pack(hh,1) dumped core - * - * Revision 4.0.1.2 91/06/07 10:42:17 lwall - * patch4: new copyright notice - * patch4: // wouldn't use previous pattern if it started with a null character - * patch4: //o and s///o now optimize themselves fully at runtime - * patch4: added global modifier for pattern matches - * patch4: undef @array disabled "@array" interpolation - * patch4: chop("") was returning "\0" rather than "" - * patch4: vector logical operations &, | and ^ sometimes returned null string - * patch4: syscall couldn't pass numbers with most significant bit set on sparcs - * - * Revision 4.0.1.1 91/04/11 17:40:14 lwall - * patch1: fixed undefined environ problem - * patch1: fixed debugger coredump on subroutines - * - * Revision 4.0 91/03/20 01:06:42 lwall - * 4.0 baseline. - * + */ + +/* + * "'So that was the job I felt I had to do when I started,' thought Sam." */ #include "EXTERN.h" +#define PERL_IN_DOOP_C #include "perl.h" #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) #include #endif -#ifdef BUGGY_MSC - #pragma function(memcmp) -#endif /* BUGGY_MSC */ +STATIC I32 +S_do_trans_CC_simple(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + I32 matches = 0; + STRLEN len; + short *tbl; + I32 ch; + + tbl = (short*)cPVOP->op_pv; + if (!tbl) + Perl_croak(aTHX_ "panic: do_trans"); -static void doencodes(); + s = (U8*)SvPV(sv, len); + send = s + len; -#ifdef BUGGY_MSC - #pragma intrinsic(memcmp) -#endif /* BUGGY_MSC */ + while (s < send) { + if ((ch = tbl[*s]) >= 0) { + matches++; + *s = ch; + } + s++; + } + SvSETMAGIC(sv); -I32 -do_trans(sv,arg) -SV *sv; -OP *arg; + return matches; +} + +STATIC I32 +S_do_trans_CC_count(pTHX_ SV *sv) { - register short *tbl; - register char *s; - register I32 matches = 0; - register I32 ch; - register char *send; - register char *d; - register I32 squash = op->op_private & OPpTRANS_SQUASH; + dTHR; + U8 *s; + U8 *send; + I32 matches = 0; STRLEN len; + short *tbl; - tbl = (short*) cPVOP->op_pv; - s = SvPV(sv, len); + tbl = (short*)cPVOP->op_pv; + if (!tbl) + Perl_croak(aTHX_ "panic: do_trans"); + + s = (U8*)SvPV(sv, len); + send = s + len; + + while (s < send) { + if (tbl[*s] >= 0) + matches++; + s++; + } + + return matches; +} + +STATIC I32 +S_do_trans_CC_complex(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + I32 matches = 0; + STRLEN len; + short *tbl; + I32 ch; + + tbl = (short*)cPVOP->op_pv; + if (!tbl) + Perl_croak(aTHX_ "panic: do_trans"); + + s = (U8*)SvPV(sv, len); send = s + len; - if (!tbl || !s) - croak("panic: do_trans"); - DEBUG_t( deb("2.TBL\n")); - if (!op->op_private) { + + d = s; + if (PL_op->op_private & OPpTRANS_SQUASH) { + U8* p = send; + while (s < send) { - if ((ch = tbl[*s & 0377]) >= 0) { + if ((ch = tbl[*s]) >= 0) { + *d = ch; matches++; - *s = ch; + if (p == d - 1 && *p == *d) + matches--; + else + p = d++; } + else if (ch == -1) /* -1 is unmapped character */ + *d++ = *s; /* -2 is delete character */ s++; } } else { - d = s; while (s < send) { - if ((ch = tbl[*s & 0377]) >= 0) { + if ((ch = tbl[*s]) >= 0) { *d = ch; - if (matches++ && squash) { - if (d[-1] == *d) - matches--; - else - d++; - } - else - d++; + matches++; + d++; } 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); + + return matches; +} + +STATIC I32 +S_do_trans_UU_simple(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + I32 matches = 0; + STRLEN len; + + SV* rv = (SV*)cSVOP->op_sv; + HV* hv = (HV*)SvRV(rv); + SV** svp = hv_fetch(hv, "NONE", 4, FALSE); + UV none = svp ? SvUV(*svp) : 0x7fffffff; + UV extra = none + 1; + UV final; + UV uv; + + s = (U8*)SvPV(sv, len); + send = s + len; + + svp = hv_fetch(hv, "FINAL", 5, FALSE); + if (svp) + final = SvUV(*svp); + + d = s; + while (s < send) { + if ((uv = swash_fetch(rv, s)) < none) { + s += UTF8SKIP(s); + matches++; + d = uv_to_utf8(d, uv); + } + else if (uv == none) { + int i; + for (i = UTF8SKIP(s); i; i--) + *d++ = *s++; + } + else if (uv == extra) { + s += UTF8SKIP(s); + matches++; + d = uv_to_utf8(d, final); + } + else + s += UTF8SKIP(s); + } + *d = '\0'; + SvCUR_set(sv, d - (U8*)SvPVX(sv)); + SvSETMAGIC(sv); + + return matches; +} + +STATIC I32 +S_do_trans_UU_count(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + I32 matches = 0; + STRLEN len; + + SV* rv = (SV*)cSVOP->op_sv; + HV* hv = (HV*)SvRV(rv); + SV** svp = hv_fetch(hv, "NONE", 4, FALSE); + UV none = svp ? SvUV(*svp) : 0x7fffffff; + UV uv; + + s = (U8*)SvPV(sv, len); + send = s + len; + + while (s < send) { + if ((uv = swash_fetch(rv, s)) < none) + matches++; + s += UTF8SKIP(s); + } + + return matches; +} + +STATIC I32 +S_do_trans_UC_simple(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + I32 matches = 0; + STRLEN len; + + SV* rv = (SV*)cSVOP->op_sv; + HV* hv = (HV*)SvRV(rv); + SV** svp = hv_fetch(hv, "NONE", 4, FALSE); + UV none = svp ? SvUV(*svp) : 0x7fffffff; + UV extra = none + 1; + UV final; + UV uv; + + s = (U8*)SvPV(sv, len); + send = s + len; + + svp = hv_fetch(hv, "FINAL", 5, FALSE); + if (svp) + final = SvUV(*svp); + + d = s; + while (s < send) { + if ((uv = swash_fetch(rv, s)) < none) { + s += UTF8SKIP(s); + matches++; + *d++ = (U8)uv; + } + else if (uv == none) { + I32 ulen; + uv = utf8_to_uv(s, &ulen); + s += ulen; + *d++ = (U8)uv; + } + else if (uv == extra) { + s += UTF8SKIP(s); + matches++; + *d++ = (U8)final; + } + else + s += UTF8SKIP(s); + } + *d = '\0'; + SvCUR_set(sv, d - (U8*)SvPVX(sv)); + SvSETMAGIC(sv); + + return matches; +} + +STATIC I32 +S_do_trans_CU_simple(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + U8 *dst; + I32 matches = 0; + STRLEN len; + + SV* rv = (SV*)cSVOP->op_sv; + HV* hv = (HV*)SvRV(rv); + SV** svp = hv_fetch(hv, "NONE", 4, FALSE); + UV none = svp ? SvUV(*svp) : 0x7fffffff; + UV extra = none + 1; + UV final; + UV uv; + U8 tmpbuf[10]; + I32 bits = 16; + + s = (U8*)SvPV(sv, len); + send = s + len; + + svp = hv_fetch(hv, "BITS", 4, FALSE); + if (svp) + bits = (I32)SvIV(*svp); + + svp = hv_fetch(hv, "FINAL", 5, FALSE); + if (svp) + final = SvUV(*svp); + + Newz(801, d, len * (bits >> 3) + 1, U8); + dst = d; + + while (s < send) { + uv = *s++; + if (uv < 0x80) + tmpbuf[0] = uv; + else { + tmpbuf[0] = (( uv >> 6) | 0xc0); + tmpbuf[1] = (( uv & 0x3f) | 0x80); + } + + if ((uv = swash_fetch(rv, tmpbuf)) < none) { + matches++; + d = uv_to_utf8(d, uv); + } + else if (uv == none) + d = uv_to_utf8(d, s[-1]); + else if (uv == extra) { + matches++; + d = uv_to_utf8(d, final); + } + } + *d = '\0'; + sv_usepvn_mg(sv, (char*)dst, d - dst); + + return matches; +} + +/* utf-8 to latin-1 */ + +STATIC I32 +S_do_trans_UC_trivial(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + STRLEN len; + + s = (U8*)SvPV(sv, len); + send = s + len; + + d = s; + while (s < send) { + if (*s < 0x80) + *d++ = *s++; + else { + I32 ulen; + UV uv = utf8_to_uv(s, &ulen); + s += ulen; + *d++ = (U8)uv; + } + } + *d = '\0'; + SvCUR_set(sv, d - (U8*)SvPVX(sv)); + SvSETMAGIC(sv); + + return SvCUR(sv); +} + +/* latin-1 to utf-8 */ + +STATIC I32 +S_do_trans_CU_trivial(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + U8 *dst; + I32 matches; + STRLEN len; + + s = (U8*)SvPV(sv, len); + send = s + len; + + Newz(801, d, len * 2 + 1, U8); + dst = d; + + matches = send - s; + + while (s < send) { + if (*s < 0x80) + *d++ = *s++; + else { + UV uv = *s++; + *d++ = (( uv >> 6) | 0xc0); + *d++ = (( uv & 0x3f) | 0x80); + } + } + *d = '\0'; + sv_usepvn_mg(sv, (char*)dst, d - dst); + + return matches; +} + +STATIC I32 +S_do_trans_UU_complex(pTHX_ SV *sv) +{ + dTHR; + U8 *s; + U8 *send; + U8 *d; + I32 matches = 0; + I32 squash = PL_op->op_private & OPpTRANS_SQUASH; + I32 from_utf = PL_op->op_private & OPpTRANS_FROM_UTF; + I32 to_utf = PL_op->op_private & OPpTRANS_TO_UTF; + I32 del = PL_op->op_private & OPpTRANS_DELETE; + SV* rv = (SV*)cSVOP->op_sv; + HV* hv = (HV*)SvRV(rv); + SV** svp = hv_fetch(hv, "NONE", 4, FALSE); + UV none = svp ? SvUV(*svp) : 0x7fffffff; + UV extra = none + 1; + UV final; + UV uv; + STRLEN len; + U8 *dst; + + s = (U8*)SvPV(sv, len); + send = s + len; + + svp = hv_fetch(hv, "FINAL", 5, FALSE); + if (svp) + final = SvUV(*svp); + + if (PL_op->op_private & OPpTRANS_GROWS) { + I32 bits = 16; + + svp = hv_fetch(hv, "BITS", 4, FALSE); + if (svp) + bits = (I32)SvIV(*svp); + + Newz(801, d, len * (bits >> 3) + 1, U8); + dst = d; + } + else { + d = s; + dst = 0; + } + + if (squash) { + UV puv = 0xfeedface; + while (s < send) { + if (from_utf) { + uv = swash_fetch(rv, s); + } + else { + U8 tmpbuf[2]; + uv = *s++; + if (uv < 0x80) + tmpbuf[0] = uv; + else { + tmpbuf[0] = (( uv >> 6) | 0xc0); + tmpbuf[1] = (( uv & 0x3f) | 0x80); + } + uv = swash_fetch(rv, tmpbuf); + } + if (uv < none) { + matches++; + if (uv != puv) { + if (uv >= 0x80 && to_utf) + d = uv_to_utf8(d, uv); + else + *d++ = (U8)uv; + puv = uv; + } + if (from_utf) + s += UTF8SKIP(s); + continue; + } + else if (uv == none) { /* "none" is unmapped character */ + if (from_utf) { + if (*s < 0x80) + *d++ = *s++; + else if (to_utf) { + int i; + for (i = UTF8SKIP(s); i; --i) + *d++ = *s++; + } + else { + I32 ulen; + *d++ = (U8)utf8_to_uv(s, &ulen); + s += ulen; + } + } + else { /* must be to_utf only */ + d = uv_to_utf8(d, s[-1]); + } + puv = 0xfeedface; + continue; + } + else if (uv == extra && !del) { + matches++; + if (uv != puv) { + if (final >= 0x80 && to_utf) + d = uv_to_utf8(d, final); + else + *d++ = (U8)final; + puv = final; + } + if (from_utf) + s += UTF8SKIP(s); + continue; + } + matches++; /* "none+1" is delete character */ + if (from_utf) + s += UTF8SKIP(s); + } + } + else { + while (s < send) { + if (from_utf) { + uv = swash_fetch(rv, s); + } + else { + U8 tmpbuf[2]; + uv = *s++; + if (uv < 0x80) + tmpbuf[0] = uv; + else { + tmpbuf[0] = (( uv >> 6) | 0xc0); + tmpbuf[1] = (( uv & 0x3f) | 0x80); + } + uv = swash_fetch(rv, tmpbuf); + } + if (uv < none) { + matches++; + if (uv >= 0x80 && to_utf) + d = uv_to_utf8(d, uv); + else + *d++ = (U8)uv; + if (from_utf) + s += UTF8SKIP(s); + continue; + } + else if (uv == none) { /* "none" is unmapped character */ + if (from_utf) { + if (*s < 0x80) + *d++ = *s++; + else if (to_utf) { + int i; + for (i = UTF8SKIP(s); i; --i) + *d++ = *s++; + } + else { + I32 ulen; + *d++ = (U8)utf8_to_uv(s, &ulen); + s += ulen; + } + } + else { /* must be to_utf only */ + d = uv_to_utf8(d, s[-1]); + } + continue; + } + else if (uv == extra && !del) { + matches++; + if (final >= 0x80 && to_utf) + d = uv_to_utf8(d, final); + else + *d++ = (U8)final; + if (from_utf) + s += UTF8SKIP(s); + continue; + } + matches++; /* "none+1" is delete character */ + if (from_utf) + s += UTF8SKIP(s); + } + } + if (dst) + sv_usepvn(sv, (char*)dst, d - dst); + else { *d = '\0'; - SvCUR_set(sv, d - SvPVX(sv)); + SvCUR_set(sv, d - (U8*)SvPVX(sv)); } SvSETMAGIC(sv); + return matches; } +I32 +Perl_do_trans(pTHX_ SV *sv) +{ + dTHR; + STRLEN len; + + if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) + Perl_croak(aTHX_ PL_no_modify); + + (void)SvPV(sv, len); + if (!len) + return 0; + if (!SvPOKp(sv)) + (void)SvPV_force(sv, len); + (void)SvPOK_only(sv); + + DEBUG_t( Perl_deb(aTHX_ "2.TBL\n")); + + switch (PL_op->op_private & 63) { + case 0: + return do_trans_CC_simple(sv); + + case OPpTRANS_FROM_UTF: + return do_trans_UC_simple(sv); + + case OPpTRANS_TO_UTF: + return do_trans_CU_simple(sv); + + case OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF: + return do_trans_UU_simple(sv); + + case OPpTRANS_IDENTICAL: + return do_trans_CC_count(sv); + + case OPpTRANS_FROM_UTF|OPpTRANS_IDENTICAL: + return do_trans_UC_trivial(sv); + + case OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL: + return do_trans_CU_trivial(sv); + + case OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL: + return do_trans_UU_count(sv); + + default: + if (PL_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) + return do_trans_UU_complex(sv); /* could be UC or CU too */ + else + return do_trans_CC_complex(sv); + } +} + void -do_join(sv,del,mark,sp) -register SV *sv; -SV *del; -register SV **mark; -register SV **sp; +Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp) { SV **oldmark = mark; register I32 items = sp - mark; @@ -145,11 +641,10 @@ register SV **sp; mark++; len = (items > 0 ? (delimlen * (items - 1) ) : 0); - if (SvTYPE(sv) < SVt_PV) - sv_upgrade(sv, SVt_PV); + (void)SvUPGRADE(sv, SVt_PV); if (SvLEN(sv) < len + items) { /* current length is way too short */ while (items-- > 0) { - if (*mark) { + if (*mark && !SvGMAGICAL(*mark) && SvOK(*mark)) { SvPV(*mark, tmplen); len += tmplen; } @@ -158,13 +653,19 @@ register SV **sp; SvGROW(sv, len + 1); /* so try to pre-extend */ mark = oldmark; - items = sp - mark;; + items = sp - mark; ++mark; } if (items-- > 0) { - char *s = SvPV(*mark, tmplen); - sv_setpvn(sv, s, tmplen); + char *s; + + if (*mark) { + s = SvPV(*mark, tmplen); + sv_setpvn(sv, s, tmplen); + } + else + sv_setpv(sv, ""); mark++; } else @@ -184,205 +685,44 @@ register SV **sp; } void -do_sprintf(sv,len,sarg) -register SV *sv; -register I32 len; -register SV **sarg; +Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg) { - register char *s; - register char *t; - register char *f; - bool dolong; -#ifdef QUAD - bool doquad; -#endif /* QUAD */ - char ch; - register char *send; - register SV *arg; - char *xs; - I32 xlen; - I32 pre; - I32 post; - double value; - STRLEN arglen; - - sv_setpv(sv,""); - len--; /* don't count pattern string */ - t = s = SvPV(*sarg, arglen); - send = s + arglen; - sarg++; - for ( ; ; len--) { - - /*SUPPRESS 560*/ - if (len <= 0 || !(arg = *sarg++)) - arg = &sv_no; - - /*SUPPRESS 530*/ - for ( ; t < send && *t != '%'; t++) ; - if (t >= send) - break; /* end of run_format string, ignore extra args */ - f = t; - *buf = '\0'; - xs = buf; -#ifdef QUAD - doquad = -#endif /* QUAD */ - dolong = FALSE; - pre = post = 0; - for (t++; t < send; t++) { - switch (*t) { - default: - ch = *(++t); - *t = '\0'; - (void)sprintf(xs,f); - len++, sarg--; - xlen = strlen(xs); - break; - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - case '.': case '#': case '-': case '+': case ' ': - continue; - case 'l': -#ifdef QUAD - if (dolong) { - dolong = FALSE; - doquad = TRUE; - } else -#endif - dolong = TRUE; - continue; - case 'c': - ch = *(++t); - *t = '\0'; - xlen = SvIV(arg); - if (strEQ(f,"%c")) { /* some printfs fail on null chars */ - *xs = xlen; - xs[1] = '\0'; - xlen = 1; - } - else { - (void)sprintf(xs,f,xlen); - xlen = strlen(xs); - } - break; - case 'D': - dolong = TRUE; - /* FALL THROUGH */ - case 'd': - ch = *(++t); - *t = '\0'; -#ifdef QUAD - if (doquad) - (void)sprintf(buf,s,(quad)SvNV(arg)); - else -#endif - if (dolong) - (void)sprintf(xs,f,(long)SvNV(arg)); - else - (void)sprintf(xs,f,SvIV(arg)); - xlen = strlen(xs); - break; - case 'X': case 'O': - dolong = TRUE; - /* FALL THROUGH */ - case 'x': case 'o': case 'u': - ch = *(++t); - *t = '\0'; - value = SvNV(arg); -#ifdef QUAD - if (doquad) - (void)sprintf(buf,s,(unsigned quad)value); - else -#endif - if (dolong) - (void)sprintf(xs,f,U_L(value)); - else - (void)sprintf(xs,f,U_I(value)); - xlen = strlen(xs); - break; - case 'E': case 'e': case 'f': case 'G': case 'g': - ch = *(++t); - *t = '\0'; - (void)sprintf(xs,f,SvNV(arg)); - xlen = strlen(xs); - break; - case 's': - ch = *(++t); - *t = '\0'; - xs = SvPV(arg, arglen); - xlen = (I32)arglen; - if (strEQ(f,"%s")) { /* some printfs fail on >128 chars */ - break; /* so handle simple cases */ - } - else if (f[1] == '-') { - char *mp = strchr(f, '.'); - I32 min = atoi(f+2); - - if (mp) { - I32 max = atoi(mp+1); - - if (xlen > max) - xlen = max; - } - if (xlen < min) - post = min - xlen; - break; - } - else if (isDIGIT(f[1])) { - char *mp = strchr(f, '.'); - I32 min = atoi(f+1); - - if (mp) { - I32 max = atoi(mp+1); + STRLEN patlen; + char *pat = SvPV(*sarg, patlen); + bool do_taint = FALSE; - if (xlen > max) - xlen = max; - } - if (xlen < min) - pre = min - xlen; - break; - } - strcpy(tokenbuf+64,f); /* sprintf($s,...$s...) */ - *t = ch; - (void)sprintf(buf,tokenbuf+64,xs); - xs = buf; - xlen = strlen(xs); - break; - } - /* end of switch, copy results */ - *t = ch; - SvGROW(sv, SvCUR(sv) + (f - s) + xlen + 1 + pre + post); - sv_catpvn(sv, s, f - s); - if (pre) { - repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, pre); - SvCUR(sv) += pre; - } - sv_catpvn(sv, xs, xlen); - if (post) { - repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, post); - SvCUR(sv) += post; - } - s = t; - break; /* break from for loop */ - } - } - sv_catpvn(sv, s, t - s); + sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint); SvSETMAGIC(sv); + if (do_taint) + SvTAINTED_on(sv); } void -do_vecset(sv) -SV *sv; +Perl_do_vecset(pTHX_ SV *sv) { SV *targ = LvTARG(sv); register I32 offset; register I32 size; - register unsigned char *s = (unsigned char*)SvPVX(targ); - register unsigned long lval = U_L(SvNV(sv)); + register unsigned char *s; + register unsigned long lval; I32 mask; + STRLEN targlen; + STRLEN len; + if (!targ) + return; + s = (unsigned char*)SvPV_force(targ, targlen); + lval = U_L(SvNV(sv)); offset = LvTARGOFF(sv); size = LvTARGLEN(sv); + + len = (offset + size + 7) / 8; + if (len > targlen) { + s = (unsigned char*)SvGROW(targ, len + 1); + (void)memzero(s + targlen, len - targlen + 1); + SvCUR_set(targ, len); + } + if (size < 8) { mask = (1 << size) - 1; size = offset & 7; @@ -392,6 +732,7 @@ SV *sv; s[offset] |= lval << size; } else { + offset >>= 3; if (size == 8) s[offset] = lval & 255; else if (size == 16) { @@ -405,60 +746,154 @@ SV *sv; s[offset+3] = lval & 255; } } + SvSETMAGIC(targ); } void -do_chop(astr,sv) -register SV *astr; -register SV *sv; +Perl_do_chop(pTHX_ register SV *astr, register SV *sv) { - register char *tmps; - register I32 i; - AV *ary; - HV *hv; - HE *entry; STRLEN len; - - if (!sv) - return; - if (SvREADONLY(sv)) - croak("Can't chop readonly value"); + char *s; + dTHR; + if (SvTYPE(sv) == SVt_PVAV) { - I32 max; - SV **array = AvARRAY(sv); - max = AvFILL(sv); - for (i = 0; i <= max; i++) - do_chop(astr,array[i]); - return; + register I32 i; + I32 max; + AV* av = (AV*)sv; + max = AvFILL(av); + for (i = 0; i <= max; i++) { + sv = (SV*)av_fetch(av, i, FALSE); + if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) + do_chop(astr, sv); + } + return; } - if (SvTYPE(sv) == SVt_PVHV) { - hv = (HV*)sv; - (void)hv_iterinit(hv); - /*SUPPRESS 560*/ - while (entry = hv_iternext(hv)) - do_chop(astr,hv_iterval(hv,entry)); - return; + else if (SvTYPE(sv) == SVt_PVHV) { + HV* hv = (HV*)sv; + HE* entry; + (void)hv_iterinit(hv); + /*SUPPRESS 560*/ + while (entry = hv_iternext(hv)) + do_chop(astr,hv_iterval(hv,entry)); + return; } - tmps = SvPV(sv, len); - if (tmps && len) { - tmps += len - 1; - sv_setpvn(astr,tmps,1); /* remember last char */ - *tmps = '\0'; /* wipe it out */ - SvCUR_set(sv, tmps - SvPVX(sv)); - SvNOK_off(sv); - SvSETMAGIC(sv); + else if (SvREADONLY(sv)) + Perl_croak(aTHX_ PL_no_modify); + s = SvPV(sv, len); + if (len && !SvPOK(sv)) + s = SvPV_force(sv, len); + if (IN_UTF8) { + if (s && len) { + char *send = s + len; + char *start = s; + s = send - 1; + while ((*s & 0xc0) == 0x80) + --s; + if (UTF8SKIP(s) != send - s && ckWARN_d(WARN_UTF8)) + Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); + sv_setpvn(astr, s, send - s); + *s = '\0'; + SvCUR_set(sv, s - start); + SvNIOK_off(sv); + } + else + sv_setpvn(astr, "", 0); } else - sv_setpvn(astr,"",0); -} + if (s && len) { + s += --len; + sv_setpvn(astr, s, 1); + *s = '\0'; + SvCUR_set(sv, len); + SvNIOK_off(sv); + } + else + sv_setpvn(astr, "", 0); + SvSETMAGIC(sv); +} + +I32 +Perl_do_chomp(pTHX_ register SV *sv) +{ + dTHR; + register I32 count; + STRLEN len; + char *s; + + if (RsSNARF(PL_rs)) + return 0; + if (RsRECORD(PL_rs)) + return 0; + count = 0; + if (SvTYPE(sv) == SVt_PVAV) { + register I32 i; + I32 max; + AV* av = (AV*)sv; + max = AvFILL(av); + for (i = 0; i <= max; i++) { + sv = (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* hv = (HV*)sv; + HE* entry; + (void)hv_iterinit(hv); + /*SUPPRESS 560*/ + while (entry = hv_iternext(hv)) + count += do_chomp(hv_iterval(hv,entry)); + return count; + } + else if (SvREADONLY(sv)) + Perl_croak(aTHX_ PL_no_modify); + s = SvPV(sv, len); + if (len && !SvPOKp(sv)) + s = SvPV_force(sv, len); + if (s && len) { + s += --len; + if (RsPARA(PL_rs)) { + if (*s != '\n') + goto nope; + ++count; + while (len && s[-1] == '\n') { + --len; + --s; + ++count; + } + } + else { + STRLEN rslen; + char *rsptr = SvPV(PL_rs, rslen); + if (rslen == 1) { + if (*s != *rsptr) + goto nope; + ++count; + } + else { + if (len < rslen - 1) + goto nope; + len -= rslen - 1; + s -= rslen - 1; + if (memNE(s, rsptr, rslen)) + goto nope; + count += rslen; + } + } + *s = '\0'; + SvCUR_set(sv, len); + SvNIOK_off(sv); + } + nope: + SvSETMAGIC(sv); + return count; +} void -do_vop(optype,sv,left,right) -I32 optype; -SV *sv; -SV *left; -SV *right; +Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) { + dTHR; /* just for taint */ #ifdef LIBERAL register long *dl; register long *ll; @@ -467,28 +902,36 @@ SV *right; register char *dc; STRLEN leftlen; STRLEN rightlen; - register char *lc = SvPV(left, leftlen); - register char *rc = SvPV(right, rightlen); + register char *lc; + register char *rc; register I32 len; + I32 lensave; + char *lsave; + char *rsave; - if (SvREADONLY(sv)) - croak("Can't do %s to readonly value", op_name[optype]); + if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) + sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ + lsave = lc = SvPV(left, leftlen); + rsave = rc = SvPV(right, rightlen); len = leftlen < rightlen ? leftlen : rightlen; - if (SvTYPE(sv) < SVt_PV) - sv_upgrade(sv, SVt_PV); - if (SvCUR(sv) > len) - SvCUR_set(sv, len); - else if (SvCUR(sv) < len) { - SvGROW(sv,len); - (void)memzero(SvPVX(sv) + SvCUR(sv), len - SvCUR(sv)); - SvCUR_set(sv, len); + lensave = len; + 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); + } } - SvPOK_only(sv); - dc = SvPVX(sv); - if (!dc) { - sv_setpvn(sv,"",0); - dc = SvPVX(sv); + else { + I32 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() */ } + SvCUR_set(sv, len); + (void)SvPOK_only(sv); #ifdef LIBERAL if (len >= sizeof(long)*4 && !((long)dc % sizeof(long)) && @@ -511,7 +954,7 @@ SV *right; *dl++ = *ll++ & *rl++; } break; - case OP_XOR: + case OP_BIT_XOR: while (len--) { *dl++ = *ll++ ^ *rl++; *dl++ = *ll++ ^ *rl++; @@ -535,86 +978,112 @@ SV *right; len = remainder; } #endif - switch (optype) { - case OP_BIT_AND: - while (len--) - *dc++ = *lc++ & *rc++; - break; - case OP_XOR: - while (len--) - *dc++ = *lc++ ^ *rc++; - goto mop_up; - case OP_BIT_OR: - while (len--) - *dc++ = *lc++ | *rc++; - mop_up: - len = SvCUR(sv); - if (rightlen > len) - sv_catpvn(sv, SvPVX(right) + len, rightlen - len); - else if (leftlen > len) - sv_catpvn(sv, SvPVX(left) + len, leftlen - len); - break; + { + switch (optype) { + case OP_BIT_AND: + while (len--) + *dc++ = *lc++ & *rc++; + break; + case OP_BIT_XOR: + while (len--) + *dc++ = *lc++ ^ *rc++; + goto mop_up; + case OP_BIT_OR: + while (len--) + *dc++ = *lc++ | *rc++; + mop_up: + len = lensave; + if (rightlen > len) + sv_catpvn(sv, rsave + len, rightlen - len); + else if (leftlen > len) + sv_catpvn(sv, lsave + len, leftlen - len); + else + *SvEND(sv) = '\0'; + break; + } } + SvTAINT(sv); } OP * -do_kv(ARGS) -dARGS +Perl_do_kv(pTHX) { - dSP; + djSP; HV *hv = (HV*)POPs; - register AV *ary = stack; - I32 i; + HV *keys; register HE *entry; - char *tmps; SV *tmpstr; - I32 dokeys = (op->op_type == OP_KEYS || op->op_type == OP_RV2HV); - I32 dovalues = (op->op_type == OP_VALUES || op->op_type == OP_RV2HV); + I32 gimme = GIMME_V; + 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) + dokeys = dovalues = TRUE; + + if (!hv) { + if (PL_op->op_flags & OPf_MOD) { /* lvalue */ + dTARGET; /* make sure to clear its target here */ + if (SvTYPE(TARG) == SVt_PVLV) + LvTARG(TARG) = Nullsv; + PUSHs(TARG); + } + RETURN; + } - if (!hv) + keys = realhv ? hv : avhv_keys((AV*)hv); + (void)hv_iterinit(keys); /* always reset iterator regardless */ + + if (gimme == G_VOID) RETURN; - if (GIMME != G_ARRAY) { + + if (gimme == G_SCALAR) { + IV i; dTARGET; - if (!SvMAGICAL(hv) || !mg_find((SV*)hv,'P')) - i = HvKEYS(hv); + if (PL_op->op_flags & OPf_MOD) { /* lvalue */ + if (SvTYPE(TARG) < SVt_PVLV) { + sv_upgrade(TARG, SVt_PVLV); + sv_magic(TARG, Nullsv, 'k', Nullch, 0); + } + LvTYPE(TARG) = 'k'; + if (LvTARG(TARG) != (SV*)keys) { + if (LvTARG(TARG)) + SvREFCNT_dec(LvTARG(TARG)); + LvTARG(TARG) = SvREFCNT_inc(keys); + } + PUSHs(TARG); + RETURN; + } + + if (! SvTIED_mg((SV*)keys, 'P')) + i = HvKEYS(keys); else { i = 0; - (void)hv_iterinit(hv); /*SUPPRESS 560*/ - while (entry = hv_iternext(hv)) { - i++; - } + while (hv_iternext(keys)) i++; } PUSHi( i ); RETURN; } - /* Guess how much room we need. hv_max may be a few too many. Oh well. */ - EXTEND(sp, HvMAX(hv) * (dokeys + dovalues)); - - (void)hv_iterinit(hv); + EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues)); PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ - while (entry = hv_iternext(hv)) { + while (entry = hv_iternext(keys)) { SPAGAIN; - if (dokeys) { - tmps = hv_iterkey(entry,&i); /* won't clobber stack_sp */ - if (!i) - tmps = ""; - XPUSHs(sv_2mortal(newSVpv(tmps,i))); - } + if (dokeys) + XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */ if (dovalues) { - tmpstr = NEWSV(45,0); PUTBACK; - sv_setsv(tmpstr,hv_iterval(hv,entry)); + tmpstr = realhv ? + hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry); + DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu", + (unsigned long)HeHASH(entry), + HvMAX(keys)+1, + (unsigned long)(HeHASH(entry) & HvMAX(keys)))); SPAGAIN; - DEBUG_H( { - sprintf(buf,"%d%%%d=%d\n",entry->hent_hash, - HvMAX(hv)+1,entry->hent_hash & HvMAX(hv)); - sv_setpv(tmpstr,buf); - } ) - XPUSHs(sv_2mortal(tmpstr)); + XPUSHs(tmpstr); } PUTBACK; }