/* doop.c
*
- * Copyright (c) 1991-2002, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ * 2000, 2001, 2002, 2004, 2005, 2006, 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."
*/
+/* 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"
#define PERL_IN_DOOP_C
#include "perl.h"
#ifndef PERL_MICRO
-#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
#include <signal.h>
#endif
-#endif
STATIC I32
S_do_trans_simple(pTHX_ SV *sv)
{
+ dVAR;
U8 *s;
U8 *d;
- U8 *send;
+ const U8 *send;
U8 *dstart;
I32 matches = 0;
- I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
STRLEN len;
- short *tbl;
- I32 ch;
- tbl = (short*)cPVOP->op_pv;
+ const short * const tbl = (short*)cPVOP->op_pv;
if (!tbl)
Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
s = (U8*)SvPV(sv, len);
send = s + len;
- /* First, take care of non-UTF8 input strings, because they're easy */
+ /* 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;
/* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
if (grows)
- New(0, d, len*2+1, U8);
+ Newx(d, len*2+1, U8);
else
d = s;
dstart = d;
while (s < send) {
STRLEN ulen;
- UV c;
+ I32 ch;
/* Need to check this, otherwise 128..255 won't match */
- c = utf8n_to_uvchr(s, send - s, &ulen, 0);
+ 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 */
- Copy(s, d, ulen, U8);
+ Move(s, d, ulen, U8);
d += ulen;
s += ulen;
}
STATIC I32
S_do_trans_count(pTHX_ SV *sv)
{
- U8 *s;
- U8 *send;
+ dVAR;
+ const U8 *s;
+ const U8 *send;
I32 matches = 0;
STRLEN len;
- short *tbl;
- I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
- tbl = (short*)cPVOP->op_pv;
+ const short * const tbl = (short*)cPVOP->op_pv;
if (!tbl)
Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
- s = (U8*)SvPV(sv, len);
+ s = (const U8*)SvPV_const(sv, len);
send = s + len;
if (!SvUTF8(sv))
if (tbl[*s++] >= 0)
matches++;
}
- else
+ else {
+ const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
while (s < send) {
- UV c;
STRLEN ulen;
- c = utf8n_to_uvchr(s, send - s, &ulen, 0);
+ const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
if (c < 0x100) {
if (tbl[c] >= 0)
matches++;
matches++;
s += ulen;
}
+ }
return matches;
}
STATIC I32
S_do_trans_complex(pTHX_ SV *sv)
{
+ dVAR;
U8 *s;
U8 *send;
U8 *d;
U8 *dstart;
I32 isutf8;
I32 matches = 0;
- I32 grows = PL_op->op_private & OPpTRANS_GROWS;
- I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
- I32 del = PL_op->op_private & OPpTRANS_DELETE;
STRLEN len, rlen = 0;
- short *tbl;
- I32 ch;
- tbl = (short*)cPVOP->op_pv;
+ const short * const tbl = (short*)cPVOP->op_pv;
if (!tbl)
Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
if (!isutf8) {
dstart = d = s;
if (PL_op->op_private & OPpTRANS_SQUASH) {
- U8* p = send;
+ const U8* p = send;
while (s < send) {
- if ((ch = tbl[*s]) >= 0) {
- *d = ch;
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
+ *d = (U8)ch;
matches++;
if (p != d - 1 || *p != *d)
p = d++;
}
else {
while (s < send) {
- if ((ch = tbl[*s]) >= 0) {
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
matches++;
- *d++ = ch;
+ *d++ = (U8)ch;
}
else if (ch == -1) /* -1 is unmapped character */
*d++ = *s;
SvCUR_set(sv, d - dstart);
}
else { /* isutf8 */
+ 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;
+
if (grows)
- New(0, d, len*2+1, U8);
+ Newx(d, len*2+1, U8);
else
d = s;
dstart = d;
UV pch = 0xfeedface;
while (s < send) {
STRLEN len;
- UV comp = utf8_to_uvchr(s, &len);
+ const UV comp = utf8n_to_uvchr(s, send - s, &len,
+ UTF8_ALLOW_DEFAULT);
+ I32 ch;
if (comp > 0xff) {
if (!complement) {
ch = (rlen == 0) ? comp :
(comp - 0x100 < rlen) ?
tbl[comp+1] : tbl[0x100+rlen];
- if (ch != pch) {
+ if ((UV)ch != pch) {
d = uvchr_to_utf8(d, ch);
- pch = ch;
+ pch = (UV)ch;
}
s += len;
continue;
}
else if ((ch = tbl[comp]) >= 0) {
matches++;
- if (ch != pch) {
+ if ((UV)ch != pch) {
d = uvchr_to_utf8(d, ch);
- pch = ch;
+ pch = (UV)ch;
}
s += len;
continue;
else {
while (s < send) {
STRLEN len;
- UV comp = utf8_to_uvchr(s, &len);
+ const UV comp = utf8n_to_uvchr(s, send - s, &len,
+ UTF8_ALLOW_DEFAULT);
+ I32 ch;
if (comp > 0xff) {
if (!complement) {
- Copy(s, d, len, U8);
+ Move(s, d, len, U8);
d += len;
}
else {
STATIC I32
S_do_trans_simple_utf8(pTHX_ SV *sv)
{
+ dVAR;
U8 *s;
U8 *send;
U8 *d;
U8 *start;
U8 *dstart, *dend;
I32 matches = 0;
- I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ 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;
+ SV* const rv = (SV*)cSVOP->op_sv;
+ HV* const hv = (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;
- UV uv;
I32 isutf8;
U8 hibit = 0;
s = (U8*)SvPV(sv, len);
isutf8 = SvUTF8(sv);
if (!isutf8) {
- U8 *t = s, *e = s + len;
+ const U8 *t = s;
+ const U8 * const e = s + len;
while (t < e) {
- U8 ch = *t++;
- if ((hibit = !NATIVE_IS_INVARIANT(ch)))
+ const U8 ch = *t++;
+ hibit = !NATIVE_IS_INVARIANT(ch);
+ if (hibit) {
+ s = bytes_to_utf8(s, &len);
break;
+ }
}
- if (hibit)
- s = bytes_to_utf8(s, &len);
}
send = s + len;
start = s;
- svp = hv_fetch(hv, "FINAL", 5, FALSE);
+ svp = hv_fetchs(hv, "FINAL", FALSE);
if (svp)
final = SvUV(*svp);
if (grows) {
/* d needs to be bigger than s, in case e.g. upgrading is required */
- New(0, d, len*3+UTF8_MAXLEN, U8);
+ Newx(d, len * 3 + UTF8_MAXBYTES, U8);
dend = d + len * 3;
dstart = d;
}
}
while (s < send) {
- if ((uv = swash_fetch(rv, s, TRUE)) < none) {
+ const UV uv = swash_fetch(rv, s, TRUE);
+ if (uv < none) {
s += UTF8SKIP(s);
matches++;
d = uvuni_to_utf8(d, uv);
}
else if (uv == none) {
- int i = UTF8SKIP(s);
- Copy(s, d, i, U8);
+ const int i = UTF8SKIP(s);
+ Move(s, d, i, U8);
d += i;
s += i;
}
else if (uv == extra) {
- int i = UTF8SKIP(s);
- s += i;
+ s += UTF8SKIP(s);
matches++;
d = uvuni_to_utf8(d, final);
}
s += UTF8SKIP(s);
if (d > dend) {
- STRLEN clen = d - dstart;
- STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
+ 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_MAXLEN, U8);
+ Renew(dstart, nlen + UTF8_MAXBYTES, U8);
d = dstart + clen;
dend = dstart + nlen;
}
STATIC I32
S_do_trans_count_utf8(pTHX_ SV *sv)
{
- U8 *s;
- U8 *start = 0, *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 extra = none + 1;
- UV uv;
+ SV* const rv = (SV*)cSVOP->op_sv;
+ HV* const hv = (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;
- s = (U8*)SvPV(sv, len);
+ s = (const U8*)SvPV_const(sv, len);
if (!SvUTF8(sv)) {
- U8 *t = s, *e = s + len;
+ const U8 *t = s;
+ const U8 * const e = s + len;
while (t < e) {
- U8 ch = *t++;
- if ((hibit = !NATIVE_IS_INVARIANT(ch)))
+ const U8 ch = *t++;
+ hibit = !NATIVE_IS_INVARIANT(ch);
+ if (hibit) {
+ start = s = bytes_to_utf8(s, &len);
break;
+ }
}
- if (hibit)
- start = s = bytes_to_utf8(s, &len);
}
send = s + len;
while (s < send) {
- if ((uv = swash_fetch(rv, s, TRUE)) < none || uv == extra)
+ const UV uv = swash_fetch(rv, s, TRUE);
+ if (uv < none || uv == extra)
matches++;
s += UTF8SKIP(s);
}
STATIC I32
S_do_trans_complex_utf8(pTHX_ SV *sv)
{
- U8 *s;
+ 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;
- I32 grows = PL_op->op_private & OPpTRANS_GROWS;
- 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;
+ 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 *svp = hv_fetchs(hv, "NONE", FALSE);
+ const UV none = svp ? SvUV(*svp) : 0x7fffffff;
+ const UV extra = none + 1;
UV final = 0;
bool havefinal = FALSE;
- UV uv;
STRLEN len;
U8 *dstart, *dend;
- I32 isutf8;
U8 hibit = 0;
- s = (U8*)SvPV(sv, len);
- isutf8 = SvUTF8(sv);
+ U8 *s = (U8*)SvPV(sv, len);
+ const I32 isutf8 = SvUTF8(sv);
if (!isutf8) {
- U8 *t = s, *e = s + len;
+ const U8 *t = s;
+ const U8 * const e = s + len;
while (t < e) {
- U8 ch = *t++;
- if ((hibit = !NATIVE_IS_INVARIANT(ch)))
+ const U8 ch = *t++;
+ hibit = !NATIVE_IS_INVARIANT(ch);
+ if (hibit) {
+ s = bytes_to_utf8(s, &len);
break;
+ }
}
- if (hibit)
- s = bytes_to_utf8(s, &len);
}
send = s + len;
start = s;
- svp = hv_fetch(hv, "FINAL", 5, FALSE);
+ svp = hv_fetchs(hv, "FINAL", FALSE);
if (svp) {
final = SvUV(*svp);
havefinal = TRUE;
if (grows) {
/* d needs to be bigger than s, in case e.g. upgrading is required */
- New(0, d, len*3+UTF8_MAXLEN, U8);
+ Newx(d, len * 3 + UTF8_MAXBYTES, U8);
dend = d + len * 3;
dstart = d;
}
if (squash) {
UV puv = 0xfeedface;
while (s < send) {
- uv = swash_fetch(rv, s, TRUE);
+ UV uv = swash_fetch(rv, s, TRUE);
if (d > dend) {
- STRLEN clen = d - dstart;
- STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
+ 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_MAXLEN, U8);
+ Renew(dstart, nlen + UTF8_MAXBYTES, U8);
d = dstart + clen;
dend = dstart + nlen;
}
continue;
}
else if (uv == none) { /* "none" is unmapped character */
- int i = UTF8SKIP(s);
- Copy(s, d, i, U8);
+ const int i = UTF8SKIP(s);
+ Move(s, d, i, U8);
d += i;
s += i;
puv = 0xfeedface;
}
else {
STRLEN len;
- uv = utf8_to_uvuni(s, &len);
+ uv = utf8n_to_uvuni(s, send - s, &len, UTF8_ALLOW_DEFAULT);
if (uv != puv) {
- Copy(s, d, len, U8);
+ Move(s, d, len, U8);
d += len;
puv = uv;
}
}
else {
while (s < send) {
- uv = swash_fetch(rv, s, TRUE);
+ const UV uv = swash_fetch(rv, s, TRUE);
if (d > dend) {
- STRLEN clen = d - dstart;
- STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
+ 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_MAXLEN, U8);
+ Renew(dstart, nlen + UTF8_MAXBYTES, U8);
d = dstart + clen;
dend = dstart + nlen;
}
continue;
}
else if (uv == none) { /* "none" is unmapped character */
- int i = UTF8SKIP(s);
- Copy(s, d, i, U8);
+ const int i = UTF8SKIP(s);
+ Move(s, d, i, U8);
d += i;
s += i;
continue;
I32
Perl_do_trans(pTHX_ SV *sv)
{
+ 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)) {
- if (SvFAKE(sv))
- sv_force_normal(sv);
+ if (SvIsCOW(sv))
+ sv_force_normal_flags(sv, 0);
if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
Perl_croak(aTHX_ PL_no_modify);
}
- (void)SvPV(sv, len);
+ (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))
+ (void)SvPV_force(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);
void
Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
{
- SV **oldmark = mark;
+ dVAR;
+ SV ** const oldmark = mark;
register I32 items = sp - mark;
register STRLEN len;
STRLEN delimlen;
- STRLEN tmplen;
- (void) SvPV(del, delimlen); /* stringify and get the delimlen */
+ (void) SvPV_const(del, 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;
}
- sv_setpv(sv, "");
+ sv_setpvn(sv, "", 0);
+ /* sv_setpv retains old UTF8ness [perl #24846] */
+ SvUTF8_off(sv);
+
if (PL_tainting && SvMAGICAL(sv))
SvTAINTED_off(sv);
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;
SvUTF8_off(sv);
if (DO_UTF8(*sarg))
SvUTF8_on(sv);
- sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
+ sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, len - 1, &do_taint);
SvSETMAGIC(sv);
if (do_taint)
SvTAINTED_on(sv);
UV
Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
{
+ dVAR;
STRLEN srclen, len;
- unsigned char *s = (unsigned char *) SvPV(sv, srclen);
+ const unsigned char *s = (const unsigned char *) SvPV_const(sv, srclen);
UV retnum = 0;
if (offset < 0)
else {
offset >>= 3; /* turn into byte offset */
if (size == 16) {
- if (offset >= srclen)
+ if ((STRLEN)offset >= srclen)
retnum = 0;
else
retnum = (UV) s[offset] << 8;
}
else if (size == 32) {
- if (offset >= srclen)
+ if ((STRLEN)offset >= srclen)
retnum = 0;
- else if (offset + 1 >= srclen)
+ else if ((STRLEN)(offset + 1) >= srclen)
retnum =
((UV) s[offset ] << 24);
- else if (offset + 2 >= srclen)
+ else if ((STRLEN)(offset + 2) >= srclen)
retnum =
((UV) s[offset ] << 24) +
((UV) s[offset + 1] << 16);
void
Perl_do_vecset(pTHX_ SV *sv)
{
- SV *targ = LvTARG(sv);
+ dVAR;
register I32 offset;
register I32 size;
register unsigned char *s;
I32 mask;
STRLEN targlen;
STRLEN len;
+ SV * const targ = LvTARG(sv);
if (!targ)
return;
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) {
if (ckWARN(WARN_PORTABLE))
Perl_warner(aTHX_ packWARN(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;
+ 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)
{
+ dVAR;
STRLEN len;
char *s;
if (SvTYPE(sv) == SVt_PVAV) {
register I32 i;
- I32 max;
- AV* av = (AV*)sv;
- max = AvFILL(av);
- for (i = 0; i <= max; i++) {
+ AV* const av = (AV*)sv;
+ const I32 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;
+ HV* const hv = (HV*)sv;
HE* entry;
(void)hv_iterinit(hv);
- /*SUPPRESS 560*/
while ((entry = hv_iternext(hv)))
do_chop(astr,hv_iterval(hv,entry));
return;
if (SvREADONLY(sv))
Perl_croak(aTHX_ PL_no_modify);
}
+
+ if (PL_encoding && !SvUTF8(sv)) {
+ /* like in do_chomp(), utf8-ize the sv as a side-effect
+ * if we're using encoding. */
+ sv_recode_to_utf8(sv, PL_encoding);
+ }
+
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;
+ char * const send = s + len;
+ char * const start = s;
s = send - 1;
while (s > start && UTF8_IS_CONTINUATION(*s))
s--;
- if (utf8_to_uvchr((U8*)s, 0)) {
+ if (is_utf8_string((U8*)s, send - s)) {
sv_setpvn(astr, s, send - s);
*s = '\0';
SvCUR_set(sv, s - start);
I32
Perl_do_chomp(pTHX_ register SV *sv)
{
+ dVAR;
register I32 count;
STRLEN len;
- STRLEN n_a;
char *s;
+ char *temp_buffer = NULL;
+ SV* svrecode = NULL;
if (RsSNARF(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++) {
+ AV* const av = (AV*)sv;
+ const I32 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;
+ HV* const 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;
if (SvREADONLY(sv))
Perl_croak(aTHX_ PL_no_modify);
}
+
+ if (PL_encoding) {
+ if (!SvUTF8(sv)) {
+ /* XXX, here sv is utf8-ized as a side-effect!
+ If encoding.pm is used properly, almost string-generating
+ operations, including literal strings, chr(), input data, etc.
+ should have been utf8-ized already, right?
+ */
+ sv_recode_to_utf8(sv, PL_encoding);
+ }
+ }
+
s = SvPV(sv, len);
if (s && len) {
s += --len;
}
}
else {
- STRLEN rslen;
- char *rsptr = SvPV(PL_rs, rslen);
+ STRLEN rslen, rs_charlen;
+ const char *rsptr = SvPV_const(PL_rs, rslen);
+
+ rs_charlen = SvUTF8(PL_rs)
+ ? sv_len_utf8(PL_rs)
+ : rslen;
+
+ if (SvUTF8(PL_rs) != SvUTF8(sv)) {
+ /* Assumption is that rs is shorter than the scalar. */
+ if (SvUTF8(PL_rs)) {
+ /* RS is utf8, scalar is 8 bit. */
+ bool is_utf8 = TRUE;
+ temp_buffer = (char*)bytes_from_utf8((U8*)rsptr,
+ &rslen, &is_utf8);
+ if (is_utf8) {
+ /* Cannot downgrade, therefore cannot possibly match
+ */
+ assert (temp_buffer == rsptr);
+ temp_buffer = NULL;
+ goto nope;
+ }
+ rsptr = temp_buffer;
+ }
+ else if (PL_encoding) {
+ /* RS is 8 bit, encoding.pm is used.
+ * Do not recode PL_rs as a side-effect. */
+ svrecode = newSVpvn(rsptr, rslen);
+ sv_recode_to_utf8(svrecode, PL_encoding);
+ rsptr = SvPV_const(svrecode, rslen);
+ rs_charlen = sv_len_utf8(svrecode);
+ }
+ else {
+ /* RS is 8 bit, scalar is utf8. */
+ temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen);
+ rsptr = temp_buffer;
+ }
+ }
if (rslen == 1) {
if (*s != *rsptr)
goto nope;
s -= rslen - 1;
if (memNE(s, rsptr, rslen))
goto nope;
- count += rslen;
+ count += rs_charlen;
}
}
- s = SvPV_force(sv, n_a);
+ s = SvPV_force_nolen(sv);
SvCUR_set(sv, len);
*SvEND(sv) = '\0';
SvNIOK_off(sv);
SvSETMAGIC(sv);
}
nope:
+
+ if (svrecode)
+ SvREFCNT_dec(svrecode);
+
+ Safefree(temp_buffer);
return count;
}
void
Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
{
+ dVAR;
#ifdef LIBERAL
register long *dl;
register long *ll;
register char *dc;
STRLEN leftlen;
STRLEN rightlen;
- register char *lc;
- register char *rc;
+ register const char *lc;
+ register const char *rc;
register I32 len;
I32 lensave;
- char *lsave;
- char *rsave;
- bool left_utf = DO_UTF8(left);
- bool right_utf = DO_UTF8(right);
+ const char *lsave;
+ const char *rsave;
+ const bool left_utf = DO_UTF8(left);
+ const bool right_utf = DO_UTF8(right);
I32 needlen = 0;
if (left_utf && !right_utf)
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);
+ lsave = lc = SvPV_nomg_const(left, leftlen);
+ rsave = rc = SvPV_nomg_const(right, rightlen);
len = leftlen < rightlen ? leftlen : rightlen;
lensave = len;
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 = SvGROW(sv, len + 1);
+ dc = SvPV_force_nomg_nolen(sv);
+ if (SvLEN(sv) < (STRLEN)(len + 1)) {
+ dc = SvGROW(sv, (STRLEN)(len + 1));
(void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
}
if (optype != OP_BIT_AND && (left_utf || right_utf))
else {
needlen = ((optype == OP_BIT_AND)
? len : (leftlen > rightlen ? leftlen : rightlen));
- Newz(801, dc, needlen + 1, char);
+ Newxz(dc, needlen + 1, char);
(void)sv_usepvn(sv, dc, needlen);
dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
}
(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;
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) {
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(). */
+ SvCUR_set(sv, dc - dcorig);
if (rulen)
- sv_catpvn(sv, rc, rulen);
+ sv_catpvn(sv, dcsave, rulen);
else if (lulen)
- sv_catpvn(sv, lc, lulen);
+ sv_catpvn(sv, dcsave, lulen);
else
*SvEND(sv) = '\0';
+ Safefree(dcsave);
break;
}
SvUTF8_on(sv);
!((long)lc % sizeof(long)) &&
!((long)rc % sizeof(long))) /* It's almost always aligned... */
{
- I32 remainder = len % (sizeof(long)*4);
+ const I32 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--)
*dc++ = *lc++ | *rc++;
mop_up:
len = lensave;
- if (rightlen > len)
+ if (rightlen > (STRLEN)len)
sv_catpvn(sv, rsave + len, rightlen - len);
- else if (leftlen > len)
+ else if (leftlen > (STRLEN)len)
sv_catpvn(sv, lsave + len, leftlen - len);
else
*SvEND(sv) = '\0';
OP *
Perl_do_kv(pTHX)
{
+ dVAR;
dSP;
- HV *hv = (HV*)POPs;
+ HV * const 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;
+ const I32 gimme = GIMME_V;
+ const I32 dokv = (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV);
+ const I32 dokeys = dokv || (PL_op->op_type == OP_KEYS);
+ const I32 dovalues = dokv || (PL_op->op_type == OP_VALUES);
if (!hv) {
if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
dTARGET; /* make sure to clear its target here */
if (SvTYPE(TARG) == SVt_PVLV)
- LvTARG(TARG) = Nullsv;
+ LvTARG(TARG) = NULL;
PUSHs(TARG);
}
RETURN;
}
- keys = realhv ? hv : avhv_keys((AV*)hv);
+ keys = hv;
(void)hv_iterinit(keys); /* always reset iterator regardless */
if (gimme == G_VOID)
if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
if (SvTYPE(TARG) < SVt_PVLV) {
sv_upgrade(TARG, SVt_PVLV);
- sv_magic(TARG, Nullsv, PERL_MAGIC_nkeys, Nullch, 0);
+ 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(keys);
+ LvTARG(TARG) = SvREFCNT_inc_simple(keys);
}
PUSHs(TARG);
RETURN;
i = HvKEYS(keys);
else {
i = 0;
- /*SUPPRESS 560*/
while (hv_iternext(keys)) i++;
}
PUSHi( i );
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(hv,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: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff