/* doop.c
*
- * Copyright (c) 1991-2000, Larry Wall
+ * 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.
*/
/*
- * "'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
+ * ops. For example both pp_schomp() and pp_chomp() - scalar and array
+ * chomp operations - call the function do_chomp() found in this file.
*/
#include "EXTERN.h"
#include "perl.h"
#ifndef PERL_MICRO
-#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
#endif
-#endif
-
-#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)
+S_do_trans_simple(pTHX_ SV * const sv)
{
- dTHR;
- U8 *s;
- U8 *d;
- U8 *send;
- U8 *dstart;
+ dVAR;
I32 matches = 0;
- I32 sutf = SvUTF8(sv);
STRLEN len;
- short *tbl;
- I32 ch;
+ U8 *s = (U8*)SvPV_nomg(sv,len);
+ U8 * const send = s+len;
+ const short * const tbl = (short*)cPVOP->op_pv;
- tbl = (short*)cPVOP->op_pv;
- if (!tbl)
- Perl_croak(aTHX_ "panic: do_trans");
+ PERL_ARGS_ASSERT_DO_TRANS_SIMPLE;
- s = (U8*)SvPV(sv, len);
- send = s + len;
+ if (!tbl)
+ Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
- /* First, take care of non-UTF8 input strings, because they're easy */
- if (!sutf) {
+ /* First, take care of non-UTF-8 input strings, because they're easy */
+ if (!SvUTF8(sv)) {
while (s < send) {
- if ((ch = tbl[*s]) >= 0) {
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
matches++;
- *s++ = ch;
+ *s = (U8)ch;
}
- else
- s++;
+ s++;
}
SvSETMAGIC(sv);
- return matches;
}
+ else {
+ const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ U8 *d;
+ U8 *dstart;
- /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
- Newz(0, d, len*2+1, U8);
- dstart = d;
- while (s < send) {
- STRLEN ulen;
- short c;
-
- ulen = 1;
- /* Need to check this, otherwise 128..255 won't match */
- c = utf8_to_uv(s, send - s, &ulen, 0);
- if (c < 0x100 && (ch = tbl[(short)c]) >= 0) {
- matches++;
- if (ch < 0x80)
- *d++ = ch;
- else
- d = uv_to_utf8(d,ch);
- s += ulen;
- }
- else { /* No match -> copy */
- while (ulen--)
- *d++ = *s++;
- }
+ /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
+ if (grows)
+ Newx(d, len*2+1, U8);
+ else
+ d = s;
+ dstart = d;
+ while (s < send) {
+ STRLEN ulen;
+ I32 ch;
+
+ /* Need to check this, otherwise 128..255 won't match */
+ const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
+ if (c < 0x100 && (ch = tbl[c]) >= 0) {
+ matches++;
+ d = uvchr_to_utf8(d, ch);
+ s += ulen;
+ }
+ else { /* No match -> copy */
+ Move(s, d, ulen, U8);
+ d += ulen;
+ s += ulen;
+ }
+ }
+ if (grows) {
+ sv_setpvn(sv, (char*)dstart, d - dstart);
+ Safefree(dstart);
+ }
+ else {
+ *d = '\0';
+ SvCUR_set(sv, d - dstart);
+ }
+ SvUTF8_on(sv);
+ SvSETMAGIC(sv);
}
- *d = '\0';
- sv_setpvn(sv, (const char*)dstart, d - dstart);
- Safefree(dstart);
- SvUTF8_on(sv);
- SvSETMAGIC(sv);
return matches;
}
STATIC I32
-S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */
+S_do_trans_count(pTHX_ SV * const sv)
{
- dTHR;
- U8 *s;
- U8 *send;
- I32 matches = 0;
- I32 hasutf = SvUTF8(sv);
+ dVAR;
STRLEN len;
- short *tbl;
+ const U8 *s = (const U8*)SvPV_nomg_const(sv, len);
+ const U8 * const send = s + len;
+ I32 matches = 0;
+ const short * const tbl = (short*)cPVOP->op_pv;
- tbl = (short*)cPVOP->op_pv;
- if (!tbl)
- Perl_croak(aTHX_ "panic: do_trans");
+ PERL_ARGS_ASSERT_DO_TRANS_COUNT;
- s = (U8*)SvPV(sv, len);
- send = s + len;
+ if (!tbl)
+ Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
- while (s < send) {
- if (hasutf && *s & 0x80)
- s += UTF8SKIP(s);
- else {
- UV c;
- STRLEN ulen;
- ulen = 1;
- if (hasutf)
- c = utf8_to_uv(s, send - s, &ulen, 0);
- else
- c = *s;
- if (c < 0x100 && tbl[c] >= 0)
+ if (!SvUTF8(sv)) {
+ while (s < send) {
+ if (tbl[*s++] >= 0)
matches++;
- s += ulen;
- }
+ }
+ }
+ else {
+ const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
+ while (s < send) {
+ STRLEN ulen;
+ const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
+ if (c < 0x100) {
+ if (tbl[c] >= 0)
+ matches++;
+ } else if (complement)
+ matches++;
+ s += ulen;
+ }
}
return matches;
}
STATIC I32
-S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */
+S_do_trans_complex(pTHX_ SV * const sv)
{
- dTHR;
- U8 *s;
- U8 *send;
- U8 *d;
- I32 hasutf = SvUTF8(sv);
- I32 matches = 0;
+ dVAR;
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;
+ U8 *s = (U8*)SvPV_nomg(sv, len);
+ U8 * const send = s+len;
+ I32 matches = 0;
+ const short * const tbl = (short*)cPVOP->op_pv;
- d = s;
- if (PL_op->op_private & OPpTRANS_SQUASH) {
- U8* p = send;
+ PERL_ARGS_ASSERT_DO_TRANS_COMPLEX;
- while (s < send) {
- if (hasutf && *s & 0x80)
- s += UTF8SKIP(s);
- else {
- if ((ch = tbl[*s]) >= 0) {
- *d = ch;
+ if (!tbl)
+ Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
+
+ if (!SvUTF8(sv)) {
+ U8 *d = s;
+ U8 * const dstart = d;
+
+ if (PL_op->op_private & OPpTRANS_SQUASH) {
+ const U8* p = send;
+ while (s < send) {
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
+ *d = (U8)ch;
matches++;
- 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++;
- }
+ if (p != d - 1 || *p != *d)
+ p = d++;
+ }
+ else if (ch == -1) /* -1 is unmapped character */
+ *d++ = *s;
+ else if (ch == -2) /* -2 is delete character */
+ matches++;
+ s++;
+ }
}
+ else {
+ while (s < send) {
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
+ matches++;
+ *d++ = (U8)ch;
+ }
+ else if (ch == -1) /* -1 is unmapped character */
+ *d++ = *s;
+ else if (ch == -2) /* -2 is delete character */
+ matches++;
+ s++;
+ }
+ }
+ *d = '\0';
+ SvCUR_set(sv, d - dstart);
}
- else {
- while (s < send) {
- if (hasutf && *s & 0x80)
- s += UTF8SKIP(s);
- else {
- if ((ch = tbl[*s]) >= 0) {
- *d = ch;
+ else { /* is utf8 */
+ const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
+ const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ const I32 del = PL_op->op_private & OPpTRANS_DELETE;
+ U8 *d;
+ U8 *dstart;
+ STRLEN rlen = 0;
+
+ if (grows)
+ Newx(d, len*2+1, U8);
+ else
+ d = s;
+ dstart = d;
+ if (complement && !del)
+ rlen = tbl[0x100];
+
+ if (PL_op->op_private & OPpTRANS_SQUASH) {
+ UV pch = 0xfeedface;
+ while (s < send) {
+ STRLEN len;
+ const UV comp = utf8n_to_uvchr(s, send - s, &len,
+ UTF8_ALLOW_DEFAULT);
+ I32 ch;
+
+ if (comp > 0xff) {
+ if (!complement) {
+ Move(s, d, len, U8);
+ d += len;
+ }
+ else {
+ matches++;
+ if (!del) {
+ ch = (rlen == 0) ? (I32)comp :
+ (comp - 0x100 < rlen) ?
+ tbl[comp+1] : tbl[0x100+rlen];
+ if ((UV)ch != pch) {
+ d = uvchr_to_utf8(d, ch);
+ pch = (UV)ch;
+ }
+ s += len;
+ continue;
+ }
+ }
+ }
+ else if ((ch = tbl[comp]) >= 0) {
+ matches++;
+ if ((UV)ch != pch) {
+ d = uvchr_to_utf8(d, ch);
+ pch = (UV)ch;
+ }
+ s += len;
+ continue;
+ }
+ else if (ch == -1) { /* -1 is unmapped character */
+ Move(s, d, len, U8);
+ d += len;
+ }
+ else if (ch == -2) /* -2 is delete character */
+ matches++;
+ s += len;
+ pch = 0xfeedface;
+ }
+ }
+ else {
+ while (s < send) {
+ STRLEN len;
+ const UV comp = utf8n_to_uvchr(s, send - s, &len,
+ UTF8_ALLOW_DEFAULT);
+ I32 ch;
+ if (comp > 0xff) {
+ if (!complement) {
+ Move(s, d, len, U8);
+ d += len;
+ }
+ else {
+ matches++;
+ if (!del) {
+ if (comp - 0x100 < rlen)
+ d = uvchr_to_utf8(d, tbl[comp+1]);
+ else
+ d = uvchr_to_utf8(d, tbl[0x100+rlen]);
+ }
+ }
+ }
+ else if ((ch = tbl[comp]) >= 0) {
+ d = uvchr_to_utf8(d, ch);
matches++;
- d++;
- }
- else if (ch == -1) /* -1 is unmapped character */
- *d++ = *s; /* -2 is delete character */
- s++;
- }
+ }
+ else if (ch == -1) { /* -1 is unmapped character */
+ Move(s, d, len, U8);
+ d += len;
+ }
+ else if (ch == -2) /* -2 is delete character */
+ matches++;
+ s += len;
+ }
+ }
+ if (grows) {
+ sv_setpvn(sv, (char*)dstart, d - dstart);
+ Safefree(dstart);
}
+ else {
+ *d = '\0';
+ SvCUR_set(sv, d - dstart);
+ }
+ SvUTF8_on(sv);
}
- 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_simple_utf8(pTHX_ SV *sv)/* SPC - OK */
+S_do_trans_simple_utf8(pTHX_ SV * const sv)
{
- dTHR;
+ dVAR;
U8 *s;
U8 *send;
U8 *d;
U8 *start;
- U8 *dstart;
+ U8 *dstart, *dend;
I32 matches = 0;
+ const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
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;
- I32 isutf;
- I32 howmany;
-
- isutf = SvUTF8(sv);
- s = (U8*)SvPV(sv, len);
+ 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_nomg(sv, len);
+ if (!SvUTF8(sv)) {
+ const U8 *t = s;
+ const U8 * const e = s + len;
+ while (t < e) {
+ const U8 ch = *t++;
+ hibit = !NATIVE_IS_INVARIANT(ch);
+ if (hibit) {
+ s = bytes_to_utf8(s, &len);
+ break;
+ }
+ }
+ }
send = s + len;
start = s;
- svp = hv_fetch(hv, "FINAL", 5, FALSE);
+ svp = hv_fetchs(hv, "FINAL", FALSE);
if (svp)
final = SvUV(*svp);
- /* d needs to be bigger than s, in case e.g. upgrading is required */
- Newz(0, d, len*2+1, U8);
- dstart = d;
+ if (grows) {
+ /* d needs to be bigger than s, in case e.g. upgrading is required */
+ Newx(d, len * 3 + UTF8_MAXBYTES, U8);
+ dend = d + len * 3;
+ dstart = d;
+ }
+ else {
+ dstart = d = s;
+ dend = d + len;
+ }
+
while (s < send) {
- if ((uv = swash_fetch(rv, s)) < none) {
+ const UV uv = swash_fetch(rv, s, TRUE);
+ if (uv < none) {
s += UTF8SKIP(s);
matches++;
- if ((uv & 0x80) && !isutf++)
- HALF_UTF8_UPGRADE(dstart,d);
- d = uv_to_utf8(d, uv);
+ d = uvuni_to_utf8(d, uv);
}
else if (uv == none) {
- int i;
- i = UTF8SKIP(s);
- if (i > 1 && !isutf++)
- HALF_UTF8_UPGRADE(dstart,d);
- while(i--)
- *d++ = *s++;
+ const int i = UTF8SKIP(s);
+ Move(s, d, i, U8);
+ d += i;
+ s += i;
}
else if (uv == extra) {
- int i;
- i = UTF8SKIP(s);
- s += i;
+ s += UTF8SKIP(s);
matches++;
- if (i > 1 && !isutf++)
- HALF_UTF8_UPGRADE(dstart,d);
- d = uv_to_utf8(d, final);
+ d = uvuni_to_utf8(d, final);
}
else
s += UTF8SKIP(s);
+
+ if (d > dend) {
+ const STRLEN clen = d - dstart;
+ const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
+ if (!grows)
+ Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
+ Renew(dstart, nlen + UTF8_MAXBYTES, U8);
+ d = dstart + clen;
+ dend = dstart + nlen;
+ }
+ }
+ if (grows || hibit) {
+ sv_setpvn(sv, (char*)dstart, d - dstart);
+ Safefree(dstart);
+ if (grows && hibit)
+ Safefree(start);
+ }
+ else {
+ *d = '\0';
+ SvCUR_set(sv, d - dstart);
}
- *d = '\0';
- sv_setpvn(sv, (const char*)dstart, d - dstart);
SvSETMAGIC(sv);
- if (isutf)
- SvUTF8_on(sv);
+ SvUTF8_on(sv);
return matches;
}
STATIC I32
-S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */
+S_do_trans_count_utf8(pTHX_ SV * const sv)
{
- dTHR;
- U8 *s;
- U8 *send;
+ dVAR;
+ const U8 *s;
+ const U8 *start = NULL;
+ const 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);
- if (!SvUTF8(sv))
- s = bytes_to_utf8(s, &len);
+ 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_nomg_const(sv, len);
+ if (!SvUTF8(sv)) {
+ const U8 *t = s;
+ const U8 * const e = s + len;
+ while (t < e) {
+ const U8 ch = *t++;
+ hibit = !NATIVE_IS_INVARIANT(ch);
+ if (hibit) {
+ start = s = bytes_to_utf8(s, &len);
+ break;
+ }
+ }
+ }
send = s + len;
while (s < send) {
- if ((uv = swash_fetch(rv, s)) < none)
+ const UV uv = swash_fetch(rv, s, TRUE);
+ if (uv < none || uv == extra)
matches++;
s += UTF8SKIP(s);
}
+ if (hibit)
+ Safefree(start);
return matches;
}
STATIC I32
-S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */
+S_do_trans_complex_utf8(pTHX_ SV * const sv)
{
- dTHR;
- U8 *s;
- U8 *send;
+ dVAR;
+ U8 *start, *send;
U8 *d;
I32 matches = 0;
- I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
- 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;
+ 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 =
+#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;
+ bool havefinal = FALSE;
STRLEN len;
- U8 *dst;
- I32 isutf = SvUTF8(sv);
-
- s = (U8*)SvPV(sv, len);
+ U8 *dstart, *dend;
+ U8 hibit = 0;
+ U8 *s = (U8*)SvPV_nomg(sv, len);
+
+ PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8;
+
+ if (!SvUTF8(sv)) {
+ const U8 *t = s;
+ const U8 * const e = s + len;
+ while (t < e) {
+ const U8 ch = *t++;
+ hibit = !NATIVE_IS_INVARIANT(ch);
+ if (hibit) {
+ s = bytes_to_utf8(s, &len);
+ break;
+ }
+ }
+ }
send = s + len;
+ start = s;
- svp = hv_fetch(hv, "FINAL", 5, FALSE);
- if (svp)
+ svp = hv_fetchs(hv, "FINAL", FALSE);
+ if (svp) {
final = SvUV(*svp);
+ havefinal = TRUE;
+ }
- Newz(0, d, len*2+1, U8);
- dst = d;
+ if (grows) {
+ /* d needs to be bigger than s, in case e.g. upgrading is required */
+ Newx(d, len * 3 + UTF8_MAXBYTES, U8);
+ dend = d + len * 3;
+ dstart = d;
+ }
+ else {
+ dstart = d = s;
+ dend = d + len;
+ }
if (squash) {
UV puv = 0xfeedface;
while (s < send) {
- if (SvUTF8(sv))
- 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);
+ UV uv = swash_fetch(rv, s, TRUE);
+
+ if (d > dend) {
+ const STRLEN clen = d - dstart;
+ const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
+ if (!grows)
+ Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
+ Renew(dstart, nlen + UTF8_MAXBYTES, U8);
+ d = dstart + clen;
+ dend = dstart + nlen;
}
-
if (uv < none) {
matches++;
+ s += UTF8SKIP(s);
if (uv != puv) {
- if ((uv & 0x80) && !isutf++)
- HALF_UTF8_UPGRADE(dst,d);
- d = uv_to_utf8(d, uv);
+ d = uvuni_to_utf8(d, uv);
puv = uv;
}
- s += UTF8SKIP(s);
continue;
}
else if (uv == none) { /* "none" is unmapped character */
- STRLEN ulen;
- *d++ = (U8)utf8_to_uv(s, send - s, &ulen, 0);
- s += ulen;
+ const int i = UTF8SKIP(s);
+ Move(s, d, i, U8);
+ d += i;
+ s += i;
puv = 0xfeedface;
continue;
}
else if (uv == extra && !del) {
matches++;
- if (uv != puv) {
- d = uv_to_utf8(d, final);
- puv = final;
+ if (havefinal) {
+ s += UTF8SKIP(s);
+ if (puv != final) {
+ d = uvuni_to_utf8(d, final);
+ puv = final;
+ }
+ }
+ else {
+ STRLEN len;
+ uv = utf8n_to_uvuni(s, send - s, &len, UTF8_ALLOW_DEFAULT);
+ if (uv != puv) {
+ Move(s, d, len, U8);
+ d += len;
+ puv = uv;
+ }
+ s += len;
}
- s += UTF8SKIP(s);
continue;
}
matches++; /* "none+1" is delete character */
}
else {
while (s < send) {
- if (SvUTF8(sv))
- 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);
+ const UV uv = swash_fetch(rv, s, TRUE);
+ if (d > dend) {
+ const STRLEN clen = d - dstart;
+ const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
+ if (!grows)
+ Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
+ Renew(dstart, nlen + UTF8_MAXBYTES, U8);
+ d = dstart + clen;
+ dend = dstart + nlen;
}
if (uv < none) {
matches++;
- d = uv_to_utf8(d, uv);
s += UTF8SKIP(s);
+ d = uvuni_to_utf8(d, uv);
continue;
}
else if (uv == none) { /* "none" is unmapped character */
- STRLEN ulen;
- *d++ = (U8)utf8_to_uv(s, send - s, &ulen, 0);
- s += ulen;
+ const int i = UTF8SKIP(s);
+ Move(s, d, i, U8);
+ d += i;
+ s += i;
continue;
}
else if (uv == extra && !del) {
matches++;
- d = uv_to_utf8(d, final);
s += UTF8SKIP(s);
+ d = uvuni_to_utf8(d, final);
continue;
}
matches++; /* "none+1" is delete character */
s += UTF8SKIP(s);
}
}
- if (dst)
- sv_usepvn(sv, (char*)dst, d - dst);
+ if (grows || hibit) {
+ sv_setpvn(sv, (char*)dstart, d - dstart);
+ Safefree(dstart);
+ if (grows && hibit)
+ Safefree(start);
+ }
else {
*d = '\0';
- SvCUR_set(sv, d - (U8*)SvPVX(sv));
+ SvCUR_set(sv, d - dstart);
}
+ SvUTF8_on(sv);
SvSETMAGIC(sv);
return matches;
I32
Perl_do_trans(pTHX_ SV *sv)
{
- dTHR;
+ dVAR;
STRLEN len;
- I32 hasutf = (PL_op->op_private &
+ const I32 hasutf = (PL_op->op_private &
(OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
- if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
- Perl_croak(aTHX_ PL_no_modify);
+ PERL_ARGS_ASSERT_DO_TRANS;
- (void)SvPV(sv, len);
+ if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) {
+ if (!SvIsCOW(sv))
+ Perl_croak_no_modify(aTHX);
+ }
+ (void)SvPV_const(sv, len);
if (!len)
return 0;
- if (!SvPOKp(sv))
- (void)SvPV_force(sv, len);
- if (!(PL_op->op_private & OPpTRANS_IDENTICAL))
+ if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) {
+ if (!SvPOKp(sv) || SvTHINKFIRST(sv))
+ (void)SvPV_force_nomg(sv, len);
(void)SvPOK_only_UTF8(sv);
+ }
DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
- switch (PL_op->op_private & ~hasutf & 63) {
+ switch (PL_op->op_private & ~hasutf & (
+ OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|
+ OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
case 0:
if (hasutf)
return do_trans_simple_utf8(sv);
return do_trans_simple(sv);
case OPpTRANS_IDENTICAL:
+ case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT:
if (hasutf)
return do_trans_count_utf8(sv);
else
}
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)
{
- SV **oldmark = mark;
- register I32 items = sp - mark;
- register STRLEN len;
+ dVAR;
+ SV ** const oldmark = mark;
+ I32 items = sp - mark;
+ STRLEN len;
STRLEN delimlen;
- register char *delim = SvPV(del, delimlen);
- STRLEN tmplen;
+
+ 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++;
len = (items > 0 ? (delimlen * (items - 1) ) : 0);
- (void)SvUPGRADE(sv, SVt_PV);
+ SvUPGRADE(sv, SVt_PV);
if (SvLEN(sv) < len + items) { /* current length is way too short */
while (items-- > 0) {
if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
- SvPV(*mark, tmplen);
+ STRLEN tmplen;
+ SvPV_const(*mark, tmplen);
len += tmplen;
}
mark++;
++mark;
}
- if (items-- > 0) {
- char *s;
+ sv_setpvs(sv, "");
+ /* sv_setpv retains old UTF8ness [perl #24846] */
+ SvUTF8_off(sv);
- sv_setpv(sv, "");
+ if (PL_tainting && SvMAGICAL(sv))
+ SvTAINTED_off(sv);
+
+ if (items-- > 0) {
if (*mark)
sv_catsv(sv, *mark);
mark++;
}
- else
- sv_setpv(sv,"");
- len = delimlen;
- if (len) {
+
+ if (delimlen) {
for (; items > 0; items--,mark++) {
- sv_catpvn(sv,delim,len);
+ sv_catsv_nomg(sv,delim);
sv_catsv(sv,*mark);
}
}
void
Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
{
+ dVAR;
STRLEN patlen;
- char *pat = SvPV(*sarg, patlen);
+ const char * const pat = SvPV_const(*sarg, patlen);
bool do_taint = FALSE;
- sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
+ PERL_ARGS_ASSERT_DO_SPRINTF;
+
+ if (SvTAINTED(*sarg))
+ TAINT_PROPER(
+ (PL_op && PL_op->op_type < OP_max)
+ ? (PL_op->op_type == OP_PRTF)
+ ? "printf"
+ : PL_op_name[PL_op->op_type]
+ : "(unknown)"
+ );
+ SvUTF8_off(sv);
+ if (DO_UTF8(*sarg))
+ SvUTF8_on(sv);
+ sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, len - 1, &do_taint);
SvSETMAGIC(sv);
if (do_taint)
SvTAINTED_on(sv);
/* currently converts input to bytes if possible, but doesn't sweat failure */
UV
-Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
+Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
{
- STRLEN srclen, len;
- unsigned char *s = (unsigned char *) SvPV(sv, srclen);
+ dVAR;
+ STRLEN srclen, len, uoffset, bitoffs = 0;
+ const unsigned char *s = (const unsigned char *) SvPV_flags_const(sv, srclen,
+ SV_GMAGIC | ((PL_op->op_flags & OPf_MOD || LVRET)
+ ? SV_UNDEF_RETURNS_NULL : 0));
UV retnum = 0;
+ if (!s) {
+ s = (const unsigned char *)"";
+ }
+
+ 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);
- offset *= size; /* turn into bit offset */
- len = (offset + 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 {
- offset >>= 3; /* turn into byte offset */
if (size == 16) {
- if (offset >= srclen)
+ if (uoffset >= srclen)
retnum = 0;
else
- retnum = (UV) s[offset] << 8;
+ retnum = (UV) s[uoffset] << 8;
}
else if (size == 32) {
- if (offset >= srclen)
+ if (uoffset >= srclen)
retnum = 0;
- else if (offset + 1 >= srclen)
+ else if (uoffset + 1 >= srclen)
retnum =
- ((UV) s[offset ] << 24);
- else if (offset + 2 >= srclen)
+ ((UV) s[uoffset ] << 24);
+ else if (uoffset + 2 >= srclen)
retnum =
- ((UV) s[offset ] << 24) +
- ((UV) s[offset + 1] << 16);
+ ((UV) s[uoffset ] << 24) +
+ ((UV) s[uoffset + 1] << 16);
else
retnum =
- ((UV) s[offset ] << 24) +
- ((UV) s[offset + 1] << 16) +
- ( s[offset + 2] << 8);
+ ((UV) s[uoffset ] << 24) +
+ ((UV) s[uoffset + 1] << 16) +
+ ( s[uoffset + 2] << 8);
}
#ifdef UV_IS_QUAD
else if (size == 64) {
- dTHR;
- if (ckWARN(WARN_PORTABLE))
- Perl_warner(aTHX_ WARN_PORTABLE,
- "Bit vector size > 32 non-portable");
- if (offset >= srclen)
+ Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
+ "Bit vector size > 32 non-portable");
+ if (uoffset >= srclen)
retnum = 0;
- else if (offset + 1 >= srclen)
+ else if (uoffset + 1 >= srclen)
retnum =
- (UV) s[offset ] << 56;
- else if (offset + 2 >= srclen)
+ (UV) s[uoffset ] << 56;
+ else if (uoffset + 2 >= srclen)
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48);
- else if (offset + 3 >= srclen)
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48);
+ else if (uoffset + 3 >= srclen)
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48) +
- ((UV) s[offset + 2] << 40);
- else if (offset + 4 >= srclen)
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48) +
+ ((UV) s[uoffset + 2] << 40);
+ else if (uoffset + 4 >= srclen)
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48) +
- ((UV) s[offset + 2] << 40) +
- ((UV) s[offset + 3] << 32);
- else if (offset + 5 >= srclen)
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48) +
+ ((UV) s[uoffset + 2] << 40) +
+ ((UV) s[uoffset + 3] << 32);
+ else if (uoffset + 5 >= srclen)
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48) +
- ((UV) s[offset + 2] << 40) +
- ((UV) s[offset + 3] << 32) +
- ( s[offset + 4] << 24);
- else if (offset + 6 >= srclen)
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48) +
+ ((UV) s[uoffset + 2] << 40) +
+ ((UV) s[uoffset + 3] << 32) +
+ ( s[uoffset + 4] << 24);
+ else if (uoffset + 6 >= srclen)
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48) +
- ((UV) s[offset + 2] << 40) +
- ((UV) s[offset + 3] << 32) +
- ((UV) s[offset + 4] << 24) +
- ((UV) s[offset + 5] << 16);
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48) +
+ ((UV) s[uoffset + 2] << 40) +
+ ((UV) s[uoffset + 3] << 32) +
+ ((UV) s[uoffset + 4] << 24) +
+ ((UV) s[uoffset + 5] << 16);
else
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48) +
- ((UV) s[offset + 2] << 40) +
- ((UV) s[offset + 3] << 32) +
- ((UV) s[offset + 4] << 24) +
- ((UV) s[offset + 5] << 16) +
- ( s[offset + 6] << 8);
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48) +
+ ((UV) s[uoffset + 2] << 40) +
+ ((UV) s[uoffset + 3] << 32) +
+ ((UV) s[uoffset + 4] << 24) +
+ ((UV) s[uoffset + 5] << 16) +
+ ( s[uoffset + 6] << 8);
}
#endif
}
}
else if (size < 8)
- retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
+ retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1);
else {
- offset >>= 3; /* turn into byte offset */
if (size == 8)
- retnum = s[offset];
+ retnum = s[uoffset];
else if (size == 16)
retnum =
- ((UV) s[offset] << 8) +
- s[offset + 1];
+ ((UV) s[uoffset] << 8) +
+ s[uoffset + 1];
else if (size == 32)
retnum =
- ((UV) s[offset ] << 24) +
- ((UV) s[offset + 1] << 16) +
- ( s[offset + 2] << 8) +
- s[offset + 3];
+ ((UV) s[uoffset ] << 24) +
+ ((UV) s[uoffset + 1] << 16) +
+ ( s[uoffset + 2] << 8) +
+ s[uoffset + 3];
#ifdef UV_IS_QUAD
else if (size == 64) {
- dTHR;
- if (ckWARN(WARN_PORTABLE))
- Perl_warner(aTHX_ WARN_PORTABLE,
- "Bit vector size > 32 non-portable");
+ Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
+ "Bit vector size > 32 non-portable");
retnum =
- ((UV) s[offset ] << 56) +
- ((UV) s[offset + 1] << 48) +
- ((UV) s[offset + 2] << 40) +
- ((UV) s[offset + 3] << 32) +
- ((UV) s[offset + 4] << 24) +
- ((UV) s[offset + 5] << 16) +
- ( s[offset + 6] << 8) +
- s[offset + 7];
+ ((UV) s[uoffset ] << 56) +
+ ((UV) s[uoffset + 1] << 48) +
+ ((UV) s[uoffset + 2] << 40) +
+ ((UV) s[uoffset + 3] << 32) +
+ ((UV) s[uoffset + 4] << 24) +
+ ((UV) s[uoffset + 5] << 16) +
+ ( s[uoffset + 6] << 8) +
+ s[uoffset + 7];
}
#endif
}
void
Perl_do_vecset(pTHX_ SV *sv)
{
- SV *targ = LvTARG(sv);
- register I32 offset;
- register I32 size;
- register unsigned char *s;
- register UV lval;
+ dVAR;
+ SSize_t offset, bitoffs = 0;
+ int size;
+ unsigned char *s;
+ UV lval;
I32 mask;
STRLEN targlen;
STRLEN len;
+ SV * const targ = LvTARG(sv);
+
+ PERL_ARGS_ASSERT_DO_VECSET;
if (!targ)
return;
- s = (unsigned char*)SvPV_force(targ, targlen);
+ s = (unsigned char*)SvPV_force_flags(targ, targlen,
+ SV_GMAGIC | SV_UNDEF_RETURNS_NULL);
if (SvUTF8(targ)) {
/* This is handled by the SvPOK_only below...
if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
lval = SvUV(sv);
offset = LvTARGOFF(sv);
if (offset < 0)
- Perl_croak(aTHX_ "Assigning to negative offset in vec");
+ Perl_croak(aTHX_ "Negative offset to vec in lvalue context");
size = LvTARGLEN(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);
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 ] = lval & 0xff;
+ s[offset ] = (U8)( lval & 0xff);
else if (size == 16) {
- s[offset ] = (lval >> 8) & 0xff;
- s[offset+1] = lval & 0xff;
+ s[offset ] = (U8)((lval >> 8) & 0xff);
+ s[offset+1] = (U8)( lval & 0xff);
}
else if (size == 32) {
- s[offset ] = (lval >> 24) & 0xff;
- s[offset+1] = (lval >> 16) & 0xff;
- s[offset+2] = (lval >> 8) & 0xff;
- s[offset+3] = lval & 0xff;
+ s[offset ] = (U8)((lval >> 24) & 0xff);
+ s[offset+1] = (U8)((lval >> 16) & 0xff);
+ s[offset+2] = (U8)((lval >> 8) & 0xff);
+ s[offset+3] = (U8)( lval & 0xff);
}
#ifdef UV_IS_QUAD
else if (size == 64) {
- dTHR;
- if (ckWARN(WARN_PORTABLE))
- Perl_warner(aTHX_ WARN_PORTABLE,
- "Bit vector size > 32 non-portable");
- s[offset ] = (lval >> 56) & 0xff;
- s[offset+1] = (lval >> 48) & 0xff;
- s[offset+2] = (lval >> 40) & 0xff;
- s[offset+3] = (lval >> 32) & 0xff;
- s[offset+4] = (lval >> 24) & 0xff;
- s[offset+5] = (lval >> 16) & 0xff;
- s[offset+6] = (lval >> 8) & 0xff;
- s[offset+7] = lval & 0xff;
+ 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);
+ s[offset+3] = (U8)((lval >> 32) & 0xff);
+ s[offset+4] = (U8)((lval >> 24) & 0xff);
+ s[offset+5] = (U8)((lval >> 16) & 0xff);
+ s[offset+6] = (U8)((lval >> 8) & 0xff);
+ s[offset+7] = (U8)( lval & 0xff);
}
#endif
}
}
void
-Perl_do_chop(pTHX_ register SV *astr, register SV *sv)
+Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
{
+ dVAR;
+#ifdef LIBERAL
+ long *dl;
+ long *ll;
+ long *rl;
+#endif
+ char *dc;
+ STRLEN leftlen;
+ STRLEN rightlen;
+ const char *lc;
+ const char *rc;
STRLEN len;
- char *s;
- dTHR;
-
- 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))
- do_chop(astr, sv);
- }
- 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;
+ STRLEN lensave;
+ const char *lsave;
+ const char *rsave;
+ bool left_utf;
+ bool right_utf;
+ STRLEN needlen = 0;
+
+ PERL_ARGS_ASSERT_DO_VOP;
+
+ if (sv != left || (optype != OP_BIT_AND && !SvOK(sv)))
+ sv_setpvs(sv, ""); /* avoid undef warning on |= and ^= */
+ if (sv == left) {
+ lsave = lc = SvPV_force_nomg(left, leftlen);
}
- else if (SvREADONLY(sv))
- Perl_croak(aTHX_ PL_no_modify);
- s = SvPV(sv, len);
- if (len && !SvPOK(sv))
- s = SvPV_force(sv, len);
- if (DO_UTF8(sv)) {
- 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);
- SvUTF8_on(astr);
- }
- else
- sv_setpvn(astr, "", 0);
- }
- else if (s && len) {
- s += --len;
- sv_setpvn(astr, s, 1);
- *s = '\0';
- SvCUR_set(sv, len);
- SvUTF8_off(sv);
- SvNIOK_off(sv);
+ else {
+ lsave = lc = SvPV_nomg_const(left, leftlen);
+ SvPV_force_nomg_nolen(sv);
}
- else
- sv_setpvn(astr, "", 0);
- SvSETMAGIC(sv);
-}
+ rsave = rc = SvPV_nomg_const(right, rightlen);
-I32
-Perl_do_chomp(pTHX_ register SV *sv)
-{
- dTHR;
- register I32 count;
- STRLEN len;
- char *s;
+ /* This need to come after SvPV to ensure that string overloading has
+ fired off. */
- 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;
-}
+ left_utf = DO_UTF8(left);
+ right_utf = DO_UTF8(right);
-void
-Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
-{
- dTHR; /* just for taint */
-#ifdef LIBERAL
- register long *dl;
- register long *ll;
- register long *rl;
-#endif
- register char *dc;
- STRLEN leftlen;
- STRLEN rightlen;
- register char *lc;
- register char *rc;
- register I32 len;
- I32 lensave;
- char *lsave;
- char *rsave;
- bool left_utf = DO_UTF8(left);
- bool right_utf = DO_UTF8(right);
- I32 needlen;
-
- if (left_utf && !right_utf)
+ 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);
- else if (!left_utf && right_utf)
+ 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;
+ }
- 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;
lensave = len;
+ SvCUR_set(sv, len);
+ (void)SvPOK_only(sv);
if ((left_utf || right_utf) && (sv == left || sv == right)) {
needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
- Newz(801, dc, needlen + 1, char);
+ Newxz(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 = SvPV_force_nomg_nolen(sv);
+ if (SvLEN(sv) < len + 1) {
dc = SvGROW(sv, len + 1);
(void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
}
dc = SvGROW(sv, leftlen + rightlen + 1);
}
else {
- needlen = ((optype == OP_BIT_AND)
- ? len : (leftlen > rightlen ? leftlen : rightlen));
- Newz(801, dc, needlen + 1, char);
- (void)sv_usepvn(sv, dc, needlen);
+ needlen = optype == OP_BIT_AND
+ ? len : (leftlen > rightlen ? leftlen : rightlen);
+ Newxz(dc, needlen + 1, char);
+ sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL);
dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
}
- SvCUR_set(sv, len);
- (void)SvPOK_only(sv);
if (left_utf || right_utf) {
UV duc, luc, ruc;
- char *dcsave = dc;
+ char *dcorig = dc;
+ char *dcsave = NULL;
STRLEN lulen = leftlen;
STRLEN rulen = rightlen;
STRLEN ulen;
switch (optype) {
case OP_BIT_AND:
while (lulen && rulen) {
- luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
+ luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
lc += ulen;
lulen -= ulen;
- ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
+ ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
rc += ulen;
rulen -= ulen;
duc = luc & ruc;
- dc = (char*)uv_to_utf8((U8*)dc, duc);
+ dc = (char*)uvchr_to_utf8((U8*)dc, duc);
}
if (sv == left || sv == right)
- (void)sv_usepvn(sv, dcsave, needlen);
- SvCUR_set(sv, dc - dcsave);
+ (void)sv_usepvn(sv, dcorig, needlen);
+ SvCUR_set(sv, dc - dcorig);
break;
case OP_BIT_XOR:
while (lulen && rulen) {
- luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
+ luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
lc += ulen;
lulen -= ulen;
- ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
+ ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
rc += ulen;
rulen -= ulen;
duc = luc ^ ruc;
- dc = (char*)uv_to_utf8((U8*)dc, duc);
+ dc = (char*)uvchr_to_utf8((U8*)dc, duc);
}
goto mop_up_utf;
case OP_BIT_OR:
while (lulen && rulen) {
- luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
+ luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
lc += ulen;
lulen -= ulen;
- ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
+ ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
rc += ulen;
rulen -= ulen;
duc = luc | ruc;
- dc = (char*)uv_to_utf8((U8*)dc, duc);
+ dc = (char*)uvchr_to_utf8((U8*)dc, duc);
}
mop_up_utf:
+ if (rulen)
+ dcsave = savepvn(rc, rulen);
+ else if (lulen)
+ dcsave = savepvn(lc, lulen);
if (sv == left || sv == right)
- (void)sv_usepvn(sv, dcsave, needlen);
- SvCUR_set(sv, dc - dcsave);
+ (void)sv_usepvn(sv, dcorig, needlen); /* uses Renew(); defaults to nomg */
+ SvCUR_set(sv, dc - dcorig);
if (rulen)
- sv_catpvn(sv, rc, rulen);
+ sv_catpvn_nomg(sv, dcsave, rulen);
else if (lulen)
- sv_catpvn(sv, lc, lulen);
+ sv_catpvn_nomg(sv, dcsave, lulen);
else
*SvEND(sv) = '\0';
+ Safefree(dcsave);
break;
+ default:
+ if (sv == left || sv == right)
+ Safefree(dcorig);
+ Perl_croak(aTHX_ "panic: do_vop called for op %u (%s)",
+ (unsigned)optype, PL_op_name[optype]);
}
SvUTF8_on(sv);
goto finish;
else
#ifdef LIBERAL
if (len >= sizeof(long)*4 &&
- !((long)dc % sizeof(long)) &&
- !((long)lc % sizeof(long)) &&
- !((long)rc % sizeof(long))) /* It's almost always aligned... */
+ !((unsigned long)dc % sizeof(long)) &&
+ !((unsigned long)lc % sizeof(long)) &&
+ !((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */
{
- I32 remainder = len % (sizeof(long)*4);
+ const STRLEN remainder = len % (sizeof(long)*4);
len /= (sizeof(long)*4);
dl = (long*)dc;
case OP_BIT_AND:
while (len--)
*dc++ = *lc++ & *rc++;
+ *dc = '\0';
break;
case OP_BIT_XOR:
while (len--)
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);
+ sv_catpvn_nomg(sv, rsave + len, rightlen - len);
+ else if (leftlen > (STRLEN)len)
+ sv_catpvn_nomg(sv, lsave + len, leftlen - len);
else
*SvEND(sv) = '\0';
break;
OP *
Perl_do_kv(pTHX)
{
- djSP;
- HV *hv = (HV*)POPs;
- HV *keys;
- register HE *entry;
- SV *tmpstr;
- 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;
- }
+ dVAR;
+ dSP;
+ HV * const keys = MUTABLE_HV(POPs);
+ HE *entry;
+ const I32 gimme = GIMME_V;
+ const I32 dokv = (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV);
+ /* op_type is OP_RKEYS/OP_RVALUES if pp_rkeys delegated to here */
+ const I32 dokeys = dokv || (PL_op->op_type == OP_KEYS || PL_op->op_type == OP_RKEYS);
+ const I32 dovalues = dokv || (PL_op->op_type == OP_VALUES || PL_op->op_type == OP_RVALUES);
- keys = realhv ? hv : avhv_keys((AV*)hv);
(void)hv_iterinit(keys); /* always reset iterator regardless */
if (gimme == G_VOID)
RETURN;
if (gimme == G_SCALAR) {
- IV i;
- dTARGET;
+ if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
+ 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);
+ }
+ else {
+ IV i;
+ dTARGET;
- 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);
+ if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) {
+ i = HvUSEDKEYS(keys);
}
- LvTYPE(TARG) = 'k';
- if (LvTARG(TARG) != (SV*)keys) {
- if (LvTARG(TARG))
- SvREFCNT_dec(LvTARG(TARG));
- LvTARG(TARG) = SvREFCNT_inc(keys);
+ else {
+ i = 0;
+ while (hv_iternext(keys)) i++;
}
- PUSHs(TARG);
- RETURN;
+ PUSHi( i );
}
-
- if (! SvTIED_mg((SV*)keys, 'P'))
- i = HvKEYS(keys);
- else {
- i = 0;
- /*SUPPRESS 560*/
- while (hv_iternext(keys)) i++;
- }
- PUSHi( i );
RETURN;
}
- EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
+ EXTEND(SP, HvUSEDKEYS(keys) * (dokeys + dovalues));
PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
while ((entry = hv_iternext(keys))) {
SPAGAIN;
- if (dokeys)
- XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
+ if (dokeys) {
+ SV* const sv = hv_iterkeysv(entry);
+ XPUSHs(sv); /* won't clobber stack_sp */
+ }
if (dovalues) {
+ SV *tmpstr;
PUTBACK;
- tmpstr = realhv ?
- hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
+ tmpstr = hv_iterval(keys,entry);
DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
(unsigned long)HeHASH(entry),
- HvMAX(keys)+1,
+ (int)HvMAX(keys)+1,
(unsigned long)(HeHASH(entry) & HvMAX(keys))));
SPAGAIN;
XPUSHs(tmpstr);
return NORMAL;
}
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 et:
+ */
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