/* doop.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2004, by Larry Wall and others
+ * 2000, 2001, 2002, 2004, 2005, 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"
{
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 *tbl = (short*)cPVOP->op_pv;
if (!tbl)
Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
/* 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++ = (U8)ch;
}
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, 0);
if (c < 0x100 && (ch = tbl[c]) >= 0) {
matches++;
d = uvchr_to_utf8(d, ch);
U8 *send;
I32 matches = 0;
STRLEN len;
- short *tbl;
- I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
+ const 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__);
}
else
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, 0);
if (c < 0x100) {
if (tbl[c] >= 0)
matches++;
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;
+ const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
+ const 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) {
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
*d = (U8)ch;
matches++;
if (p != d - 1 || *p != *d)
}
else {
while (s < send) {
- if ((ch = tbl[*s]) >= 0) {
+ const I32 ch = tbl[*s];
+ if (ch >= 0) {
matches++;
*d++ = (U8)ch;
}
UV pch = 0xfeedface;
while (s < send) {
STRLEN len;
- UV comp = utf8_to_uvchr(s, &len);
+ const UV comp = utf8_to_uvchr(s, &len);
+ I32 ch;
if (comp > 0xff) {
if (!complement) {
else {
while (s < send) {
STRLEN len;
- UV comp = utf8_to_uvchr(s, &len);
+ const UV comp = utf8_to_uvchr(s, &len);
+ I32 ch;
if (comp > 0xff) {
if (!complement) {
Move(s, d, len, U8);
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;
+ const UV none = svp ? SvUV(*svp) : 0x7fffffff;
+ const UV extra = none + 1;
UV final = 0;
UV uv;
I32 isutf8;
s = (U8*)SvPV(sv, len);
isutf8 = SvUTF8(sv);
if (!isutf8) {
- U8 *t = s, *e = s + len;
+ const U8 *t = s, *e = s + len;
while (t < e) {
- U8 ch = *t++;
+ const U8 ch = *t++;
if ((hibit = !NATIVE_IS_INVARIANT(ch)))
break;
}
if (grows) {
/* d needs to be bigger than s, in case e.g. upgrading is required */
- New(0, d, len*3+UTF8_MAXLEN, U8);
+ New(0, d, len * 3 + UTF8_MAXBYTES, U8);
dend = d + len * 3;
dstart = d;
}
d = uvuni_to_utf8(d, uv);
}
else if (uv == none) {
- int i = UTF8SKIP(s);
+ 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;
}
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;
+ const UV none = svp ? SvUV(*svp) : 0x7fffffff;
+ const UV extra = none + 1;
U8 hibit = 0;
s = (U8*)SvPV(sv, len);
if (!SvUTF8(sv)) {
- U8 *t = s, *e = s + len;
+ const U8 *t = s;
+ const U8 *e = s + len;
while (t < e) {
- U8 ch = *t++;
+ const U8 ch = *t++;
if ((hibit = !NATIVE_IS_INVARIANT(ch)))
break;
}
send = s + len;
while (s < send) {
+ UV uv;
if ((uv = swash_fetch(rv, s, TRUE)) < none || uv == extra)
matches++;
s += UTF8SKIP(s);
STATIC I32
S_do_trans_complex_utf8(pTHX_ SV *sv)
{
- U8 *s;
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;
+ 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* 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 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, *e = s + len;
while (t < e) {
- U8 ch = *t++;
+ const U8 ch = *t++;
if ((hibit = !NATIVE_IS_INVARIANT(ch)))
break;
}
if (grows) {
/* d needs to be bigger than s, in case e.g. upgrading is required */
- New(0, d, len*3+UTF8_MAXLEN, U8);
+ New(0, 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);
+ const int i = UTF8SKIP(s);
Move(s, d, i, U8);
d += i;
s += i;
}
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);
+ const int i = UTF8SKIP(s);
Move(s, d, i, U8);
d += i;
s += i;
Perl_do_trans(pTHX_ SV *sv)
{
STRLEN len;
- I32 hasutf = (PL_op->op_private &
+ const I32 hasutf = (PL_op->op_private &
(OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
if (SvREADONLY(sv)) {
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++;
sv_setpvn(sv, "", 0);
/* sv_setpv retains old UTF8ness [perl #24846] */
- if (SvUTF8(sv))
- SvUTF8_off(sv);
+ SvUTF8_off(sv);
if (PL_tainting && SvMAGICAL(sv))
SvTAINTED_off(sv);
Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
{
STRLEN patlen;
- char *pat = SvPV(*sarg, patlen);
+ const char *pat = SvPV_const(*sarg, patlen);
bool do_taint = FALSE;
SvUTF8_off(sv);
if (SvTYPE(sv) == SVt_PVAV) {
register I32 i;
- I32 max;
AV* av = (AV*)sv;
- max = AvFILL(av);
- for (i = 0; i <= max; i++) {
+ 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);
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++) {
+ 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);
I32 lensave;
char *lsave;
char *rsave;
- bool left_utf = DO_UTF8(left);
- bool right_utf = DO_UTF8(right);
+ const bool left_utf = DO_UTF8(left);
+ const bool right_utf = DO_UTF8(right);
I32 needlen = 0;
if (left_utf && !right_utf)
!((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;
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);
-
- 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 */
XPUSHs(sv); /* won't clobber stack_sp */
}
if (dovalues) {
+ SV *tmpstr;
PUTBACK;
tmpstr = hv_iterval(hv,entry);
DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
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:
+ */
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