/*
- $Id: Encode.xs,v 1.49 2002/10/21 19:47:47 dankogai Exp $
+ $Id: Encode.xs,v 2.0 2004/05/16 20:55:15 dankogai Exp $
*/
#define PERL_NO_GET_CONTEXT
#define ENCODE_XS_USEFP 1
#define UNIMPLEMENTED(x,y) y x (SV *sv, char *encoding) {dTHX; \
- Perl_croak(aTHX_ "panic_unimplemented"); \
+ Perl_croak(aTHX_ "panic_unimplemented"); \
return (y)0; /* fool picky compilers */ \
- }
+ }
/**/
UNIMPLEMENTED(_encoded_utf8_to_bytes, I32)
static SV *
encode_method(pTHX_ encode_t * enc, encpage_t * dir, SV * src,
- int check)
+ int check, STRLEN * offset, SV * term, int * retcode)
{
STRLEN slen;
U8 *s = (U8 *) SvPV(src, slen);
SV *dst = sv_2mortal(newSV(slen+1));
U8 *d = (U8 *)SvPVX(dst);
STRLEN dlen = SvLEN(dst)-1;
- int code;
+ int code = 0;
+ STRLEN trmlen = 0;
+ U8 *trm = term ? (U8*) SvPV(term, trmlen) : NULL;
+
+ if (offset) {
+ s += *offset;
+ if (slen > *offset){ /* safeguard against slen overflow */
+ slen -= *offset;
+ }else{
+ slen = 0;
+ }
+ tlen = slen;
+ }
- if (!slen){
+ if (slen == 0){
SvCUR_set(dst, 0);
SvPOK_only(dst);
goto ENCODE_END;
}
- while( (code = do_encode(dir, s, &slen, d, dlen, &dlen, !check)) )
+ while( (code = do_encode(dir, s, &slen, d, dlen, &dlen, !check,
+ trm, trmlen)) )
{
SvCUR_set(dst, dlen+ddone);
SvPOK_only(dst);
-
- if (code == ENCODE_FALLBACK || code == ENCODE_PARTIAL){
+
+ if (code == ENCODE_FALLBACK || code == ENCODE_PARTIAL ||
+ code == ENCODE_FOUND_TERM) {
break;
}
switch (code) {
case ENCODE_NOSPACE:
- {
+ {
STRLEN more = 0; /* make sure you initialize! */
STRLEN sleft;
sdone += slen;
continue;
}
case ENCODE_NOREP:
- /* encoding */
+ /* encoding */
if (dir == enc->f_utf8) {
STRLEN clen;
UV ch =
goto ENCODE_SET_SRC;
}
if (check & ENCODE_PERLQQ){
- SV* perlqq =
+ SV* perlqq =
sv_2mortal(newSVpvf("\\x{%04"UVxf"}", (UV)ch));
sdone += slen + clen;
ddone += dlen + SvCUR(perlqq);
sv_catsv(dst, perlqq);
}else if (check & ENCODE_HTMLCREF){
- SV* htmlcref =
+ SV* htmlcref =
sv_2mortal(newSVpvf("&#%" UVuf ";", (UV)ch));
sdone += slen + clen;
ddone += dlen + SvCUR(htmlcref);
sv_catsv(dst, htmlcref);
}else if (check & ENCODE_XMLCREF){
- SV* xmlcref =
+ SV* xmlcref =
sv_2mortal(newSVpvf("&#x%" UVxf ";", (UV)ch));
sdone += slen + clen;
ddone += dlen + SvCUR(xmlcref);
else {
if (check & ENCODE_DIE_ON_ERR){
Perl_croak(aTHX_ ERR_DECODE_NOMAP,
- enc->name[0], (UV)s[slen]);
+ enc->name[0], (UV)s[slen]);
return &PL_sv_undef; /* never reaches but be safe */
}
if (check & ENCODE_WARN_ON_ERR){
Perl_warner(
aTHX_ packWARN(WARN_UTF8),
ERR_DECODE_NOMAP,
- enc->name[0], (UV)s[slen]);
+ enc->name[0], (UV)s[slen]);
}
if (check & ENCODE_RETURN_ON_ERR){
goto ENCODE_SET_SRC;
}
if (check &
(ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){
- SV* perlqq =
+ SV* perlqq =
sv_2mortal(newSVpvf("\\x%02" UVXf, (UV)s[slen]));
sdone += slen + 1;
ddone += dlen + SvCUR(perlqq);
}
/* settle variables when fallback */
d = (U8 *)SvEND(dst);
- dlen = SvLEN(dst) - ddone - 1;
+ dlen = SvLEN(dst) - ddone - 1;
s = (U8*)SvPVX(src) + sdone;
slen = tlen - sdone;
break;
}
#endif
+ if (offset)
+ *offset += sdone + slen;
+
ENCODE_END:
*SvEND(dst) = '\0';
+ if (retcode) *retcode = code;
return dst;
}
-MODULE = Encode PACKAGE = Encode::utf8 PREFIX = Method_
+MODULE = Encode PACKAGE = Encode::utf8 PREFIX = Method_
+
+PROTOTYPES: DISABLE
void
-Method_decode(obj,src,check = 0)
-SV * obj
-SV * src
-int check
+Method_renew(obj)
+SV * obj
+CODE:
+{
+ XSRETURN(1);
+}
+
+void
+Method_decode_xs(obj,src,check = 0)
+SV * obj
+SV * src
+int check
CODE:
{
STRLEN slen;
U8 *s = (U8 *) SvPV(src, slen);
U8 *e = (U8 *) SvEND(src);
- SV *dst = newSV(slen);
+ SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */
SvPOK_only(dst);
SvCUR_set(dst,0);
if (SvUTF8(src)) {
}
}
while (s < e) {
- if (UTF8_IS_INVARIANT(*s) || UTF8_IS_START(*s)) {
+ if (UTF8_IS_INVARIANT(*s) || UTF8_IS_START(*s)) {
U8 skip = UTF8SKIP(s);
if ((s + skip) > e) {
- /* Partial character - done */
- break;
+ /* Partial character - done */
+ break;
}
else if (is_utf8_char(s)) {
- /* Whole char is good */
+ /* Whole char is good */
sv_catpvn(dst,(char *)s,skip);
s += skip;
continue;
}
else {
- /* starts ok but isn't "good" */
+ /* starts ok but isn't "good" */
}
}
else {
if (check & ENCODE_WARN_ON_ERR){
Perl_warner(aTHX_ packWARN(WARN_UTF8),
ERR_DECODE_NOMAP, "utf8", (UV)*s);
- }
- if (check & ENCODE_RETURN_ON_ERR) {
+ }
+ if (check & ENCODE_RETURN_ON_ERR) {
break;
- }
- if (check & (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){
+ }
+ if (check & (ENCODE_PERLQQ|ENCODE_HTMLCREF|ENCODE_XMLCREF)){
SV* perlqq = newSVpvf("\\x%02" UVXf, (UV)*s);
- sv_catsv(dst, perlqq);
+ sv_catsv(dst, perlqq);
SvREFCNT_dec(perlqq);
} else {
sv_catpv(dst, FBCHAR_UTF8);
}
void
-Method_encode(obj,src,check = 0)
-SV * obj
-SV * src
-int check
+Method_encode_xs(obj,src,check = 0)
+SV * obj
+SV * src
+int check
CODE:
{
STRLEN slen;
U8 *s = (U8 *) SvPV(src, slen);
U8 *e = (U8 *) SvEND(src);
- SV *dst = newSV(slen);
+ SV *dst = newSV(slen>0?slen:1); /* newSV() abhors 0 -- inaba */
if (SvUTF8(src)) {
- /* Already encoded - trust it and just copy the octets */
- sv_setpvn(dst,(char *)s,(e-s));
+ /* Already encoded - trust it and just copy the octets */
+ sv_setpvn(dst,(char *)s,(e-s));
s = e;
}
else {
- /* Native bytes - can always encode */
- U8 *d = (U8 *) SvGROW(dst,2*slen);
- while (s < e) {
- UV uv = NATIVE_TO_UNI((UV) *s++);
- if (UNI_IS_INVARIANT(uv))
- *d++ = (U8)UTF_TO_NATIVE(uv);
- else {
- *d++ = (U8)UTF8_EIGHT_BIT_HI(uv);
- *d++ = (U8)UTF8_EIGHT_BIT_LO(uv);
- }
+ /* Native bytes - can always encode */
+ U8 *d = (U8 *) SvGROW(dst, 2*slen+1); /* +1 or assertion will botch */
+ while (s < e) {
+ UV uv = NATIVE_TO_UNI((UV) *s++);
+ if (UNI_IS_INVARIANT(uv))
+ *d++ = (U8)UTF_TO_NATIVE(uv);
+ else {
+ *d++ = (U8)UTF8_EIGHT_BIT_HI(uv);
+ *d++ = (U8)UTF8_EIGHT_BIT_LO(uv);
+ }
}
- SvCUR_set(dst, d- (U8 *)SvPVX(dst));
- *SvEND(dst) = '\0';
+ SvCUR_set(dst, d- (U8 *)SvPVX(dst));
+ *SvEND(dst) = '\0';
}
/* Clear out translated part of source unless asked not to */
XSRETURN(1);
}
-MODULE = Encode PACKAGE = Encode::XS PREFIX = Method_
+MODULE = Encode PACKAGE = Encode::XS PREFIX = Method_
PROTOTYPES: ENABLE
void
+Method_renew(obj)
+SV * obj
+CODE:
+{
+ XSRETURN(1);
+}
+
+void
Method_name(obj)
-SV * obj
+SV * obj
CODE:
{
encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
}
void
+Method_cat_decode(obj, dst, src, off, term, check = 0)
+SV * obj
+SV * dst
+SV * src
+SV * off
+SV * term
+int check
+CODE:
+{
+ encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
+ STRLEN offset = (STRLEN)SvIV(off);
+ int code = 0;
+ if (SvUTF8(src)) {
+ sv_utf8_downgrade(src, FALSE);
+ }
+ sv_catsv(dst, encode_method(aTHX_ enc, enc->t_utf8, src, check,
+ &offset, term, &code));
+ SvIVX(off) = (IV)offset;
+ if (code == ENCODE_FOUND_TERM) {
+ ST(0) = &PL_sv_yes;
+ }else{
+ ST(0) = &PL_sv_no;
+ }
+ XSRETURN(1);
+}
+
+void
Method_decode(obj,src,check = 0)
-SV * obj
-SV * src
-int check
+SV * obj
+SV * src
+int check
CODE:
{
encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
if (SvUTF8(src)) {
sv_utf8_downgrade(src, FALSE);
}
- ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check);
+ ST(0) = encode_method(aTHX_ enc, enc->t_utf8, src, check,
+ NULL, Nullsv, NULL);
SvUTF8_on(ST(0));
XSRETURN(1);
}
void
Method_encode(obj,src,check = 0)
-SV * obj
-SV * src
-int check
+SV * obj
+SV * src
+int check
CODE:
{
encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj)));
sv_utf8_upgrade(src);
- ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check);
+ ST(0) = encode_method(aTHX_ enc, enc->f_utf8, src, check,
+ NULL, Nullsv, NULL);
XSRETURN(1);
}
void
Method_needs_lines(obj)
-SV * obj
+SV * obj
CODE:
{
/* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */
void
Method_perlio_ok(obj)
-SV * obj
+SV * obj
CODE:
{
/* encode_t *enc = INT2PTR(encode_t *, SvIV(SvRV(obj))); */
if (SvTRUE(check)) {
/* Must do things the slow way */
U8 *dest;
- /* We need a copy to pass to check() */
+ /* We need a copy to pass to check() */
U8 *src = (U8*)savepv((char *)s);
U8 *send = s + len;
New(83, dest, len, U8); /* I think */
while (s < send) {
- if (*s < 0x80){
+ if (*s < 0x80){
*dest++ = *s++;
- } else {
+ } else {
STRLEN ulen;
UV uv = *s++;
else if (!(uv & 0x02)) { ulen = 6; uv &= 0x01; }
else if (!(uv & 0x01)) { ulen = 7; uv = 0; }
else { ulen = 13; uv = 0; }
-
+
/* Note change to utf8.c variable naming, for variety */
while (ulen--) {
if ((*s & 0xc0) != 0x80){
bool
is_utf8(sv, check = 0)
-SV * sv
-int check
+SV * sv
+int check
CODE:
{
if (SvGMAGICAL(sv)) /* it could be $1, for example */
SV *
_utf8_on(sv)
-SV * sv
+SV * sv
CODE:
{
if (SvPOK(sv)) {
SV *
_utf8_off(sv)
-SV * sv
+SV * sv
CODE:
{
if (SvPOK(sv)) {
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