/* 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.
{
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__);
/* 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;
+ *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, 0);
if (c < 0x100 && (ch = tbl[c]) >= 0) {
matches++;
d = uvchr_to_utf8(d, ch);
STATIC I32
S_do_trans_count(pTHX_ SV *sv)
{
- U8 *s;
- U8 *send;
+ const U8 *s;
+ const 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__);
- s = (U8*)SvPV(sv, len);
+ s = (const U8*)SvPV_const(sv, len);
send = s + len;
if (!SvUTF8(sv))
}
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;
}
}
else { /* isutf8 */
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 = 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;
+ SV* const rv = (SV*)cSVOP->op_sv;
+ HV* const hv = (HV*)SvRV(rv);
+ SV* const * svp = hv_fetch(hv, "NONE", 4, 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++;
+ 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);
+ 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);
+ 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;
+ const U8 *s;
+ const U8 *start = 0, *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_fetch(hv, "NONE", 4, 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++;
+ const U8 ch = *t++;
if ((hibit = !NATIVE_IS_INVARIANT(ch)))
break;
}
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;
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_fetch(hv, "NONE", 4, 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++;
+ 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);
+ 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);
+ 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)) {
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 (!(PL_op->op_private & OPpTRANS_IDENTICAL)) {
void
Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
{
- SV **oldmark = mark;
+ 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++;
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 * const pat = SvPV_const(*sarg, patlen);
bool do_taint = FALSE;
SvUTF8_off(sv);
Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
{
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)
void
Perl_do_vecset(pTHX_ SV *sv)
{
- SV *targ = LvTARG(sv);
register I32 offset;
register I32 size;
register unsigned char *s;
I32 mask;
STRLEN targlen;
STRLEN len;
+ SV * const targ = LvTARG(sv);
if (!targ)
return;
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;
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);
{
register I32 count;
STRLEN len;
- STRLEN n_a;
char *s;
char *temp_buffer = NULL;
SV* svrecode = Nullsv;
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;
}
else {
STRLEN rslen, rs_charlen;
- char *rsptr = SvPV(PL_rs, rslen);
+ const char *rsptr = SvPV_const(PL_rs, rslen);
rs_charlen = SvUTF8(PL_rs)
? sv_len_utf8(PL_rs)
* Do not recode PL_rs as a side-effect. */
svrecode = newSVpvn(rsptr, rslen);
sv_recode_to_utf8(svrecode, PL_encoding);
- rsptr = SvPV(svrecode, rslen);
+ rsptr = SvPV_const(svrecode, rslen);
rs_charlen = sv_len_utf8(svrecode);
}
else {
count += rs_charlen;
}
}
- s = SvPV_force(sv, n_a);
+ s = SvPV_force_nolen(sv);
SvCUR_set(sv, len);
*SvEND(sv) = '\0';
SvNIOK_off(sv);
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_nomg(left, leftlen);
- rsave = rc = SvPV_nomg(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_nomg(sv, n_a);
- if (SvCUR(sv) < (STRLEN)len) {
+ 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);
}
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 * const dcsave = dc;
STRLEN lulen = leftlen;
STRLEN rulen = rightlen;
STRLEN ulen;
!((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--)
Perl_do_kv(pTHX)
{
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);
-
- 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 */
i = HvKEYS(keys);
else {
i = 0;
- /*SUPPRESS 560*/
while (hv_iternext(keys)) i++;
}
PUSHi( i );
while ((entry = hv_iternext(keys))) {
SPAGAIN;
if (dokeys) {
- SV* sv = hv_iterkeysv(entry);
+ SV* const sv = hv_iterkeysv(entry);
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",
(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