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 (d > dend) {
STRLEN clen = d - dstart;
- STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
+ 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;
}
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 (d > dend) {
STRLEN clen = d - dstart;
- STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
+ 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;
}
uv = swash_fetch(rv, s, TRUE);
if (d > dend) {
STRLEN clen = d - dstart;
- STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
+ 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;
}
*/
if (complement) {
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
UV *cp;
UV nextmin = 0;
New(1109, cp, 2*tlen, UV);
}
XPUSHu(DO_UTF8(argsv) ?
- utf8n_to_uvchr(s, UTF8_MAXLEN, 0, UTF8_ALLOW_ANYUV) :
+ utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) :
(*s & 0xff));
RETURN;
if (DO_UTF8(sv) &&
(s = (U8*)SvPV_nomg(sv, slen)) && slen &&
UTF8_IS_START(*s)) {
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
STRLEN ulen;
STRLEN tculen;
(s = (U8*)SvPV_nomg(sv, slen)) && slen &&
UTF8_IS_START(*s)) {
STRLEN ulen;
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
U8 *tend;
UV uv;
STRLEN ulen;
register U8 *d;
U8 *send;
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
s = (U8*)SvPV_nomg(sv,len);
if (!len) {
SETs(TARG);
}
else {
- STRLEN nchar = utf8_length(s, s + len);
-
(void)SvUPGRADE(TARG, SVt_PV);
- SvGROW(TARG, (nchar * UTF8_MAXLEN_UCLC) + 1);
+ SvGROW(TARG, len + 1);
(void)SvPOK_only(TARG);
d = (U8*)SvPVX(TARG);
send = s + len;
while (s < send) {
+ STRLEN u = UTF8SKIP(s);
+
toUPPER_utf8(s, tmpbuf, &ulen);
+ if (ulen > u) {
+ UV o = d - (U8*)SvPVX(TARG);
+
+ /* If someone uppercases one million U+03B0s we
+ * SvGROW() one million times. Or we could try
+ * guess how much to allocate without overdoing.
+ * Such is life. */
+ SvGROW(TARG, SvCUR(TARG) + ulen - u);
+ d = (U8*)SvPVX(TARG) + o;
+ }
Copy(tmpbuf, d, ulen, U8);
d += ulen;
- s += UTF8SKIP(s);
+ s += u;
}
*d = '\0';
SvUTF8_on(TARG);
STRLEN ulen;
register U8 *d;
U8 *send;
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
s = (U8*)SvPV_nomg(sv,len);
if (!len) {
SETs(TARG);
}
else {
- STRLEN nchar = utf8_length(s, s + len);
-
(void)SvUPGRADE(TARG, SVt_PV);
- SvGROW(TARG, (nchar * UTF8_MAXLEN_UCLC) + 1);
+ SvGROW(TARG, len + 1);
(void)SvPOK_only(TARG);
d = (U8*)SvPVX(TARG);
send = s + len;
while (s < send) {
+ STRLEN u = UTF8SKIP(s);
UV uv = toLOWER_utf8(s, tmpbuf, &ulen);
-#define GREEK_CAPITAL_LETTER_SIGMA 0x03A3 /* Unicode */
+
+#define GREEK_CAPITAL_LETTER_SIGMA 0x03A3 /* Unicode U+03A3 */
if (uv == GREEK_CAPITAL_LETTER_SIGMA) {
/*
* Now if the sigma is NOT followed by
* then it should be mapped to 0x03C2,
* (GREEK SMALL LETTER FINAL SIGMA),
* instead of staying 0x03A3.
- * See lib/unicore/SpecCase.txt.
+ * "should be": in other words,
+ * this is not implemented yet.
+ * See lib/unicore/SpecialCasing.txt.
*/
}
+ if (ulen > u) {
+ UV o = d - (U8*)SvPVX(TARG);
+
+ /* If someone lowercases one million U+0130s we
+ * SvGROW() one million times. Or we could try
+ * guess how much to allocate without overdoing.
+ Such is life. */
+ SvGROW(TARG, SvCUR(TARG) + ulen - u);
+ d = (U8*)SvPVX(TARG) + o;
+ }
Copy(tmpbuf, d, ulen, U8);
d += ulen;
- s += UTF8SKIP(s);
+ s += u;
}
*d = '\0';
SvUTF8_on(TARG);
while (len-- > 0) {
fromstr = NEXTFROM;
auint = UNI_TO_NATIVE(SvUV(fromstr));
- SvGROW(cat, SvCUR(cat) + UTF8_MAXLEN + 1);
+ SvGROW(cat, SvCUR(cat) + UTF8_MAXBYTES + 1);
SvCUR_set(cat,
(char*)uvchr_to_utf8_flags((U8*)SvEND(cat),
auint,
char *oldp, *s;
STRLEN numlen;
STRLEN foldlen;
- U8 tmpbuf[UTF8_MAXLEN_FOLD+1], *foldbuf;
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1], *foldbuf;
parse_start = RExC_parse - 1;
else if (prevnatvalue == natvalue) {
Perl_sv_catpvf(aTHX_ listsv, "%04"UVxf"\n", natvalue);
if (FOLD) {
- U8 foldbuf[UTF8_MAXLEN_FOLD+1];
+ U8 foldbuf[UTF8_MAXBYTES_CASE+1];
STRLEN foldlen;
UV f = to_uni_fold(natvalue, foldbuf, &foldlen);
if (lv) {
if (sw) {
- U8 s[UTF8_MAXLEN+1];
+ U8 s[UTF8_MAXBYTES_CASE+1];
for (i = 0; i <= 256; i++) { /* just the first 256 */
U8 *e = uvchr_to_utf8(s, i);
if (UTF) {
STRLEN ulen1, ulen2;
U8 *sm = (U8 *) m;
- U8 tmpbuf1[UTF8_MAXLEN_UCLC+1];
- U8 tmpbuf2[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf1[UTF8_MAXBYTES_CASE+1];
+ U8 tmpbuf2[UTF8_MAXBYTES_CASE+1];
to_utf8_lower((U8*)m, tmpbuf1, &ulen1);
to_utf8_upper((U8*)m, tmpbuf2, &ulen2);
- c1 = utf8n_to_uvchr(tmpbuf1, UTF8_MAXLEN_UCLC,
+ c1 = utf8n_to_uvchr(tmpbuf1, UTF8_MAXBYTES_CASE,
0, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
- c2 = utf8n_to_uvchr(tmpbuf2, UTF8_MAXLEN_UCLC,
+ c2 = utf8n_to_uvchr(tmpbuf2, UTF8_MAXBYTES_CASE,
0, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
lnc = 0;
while (sm < ((U8 *) m + ln)) {
if (do_utf8) {
UV c, f;
- U8 tmpbuf [UTF8_MAXLEN+1];
- U8 foldbuf[UTF8_MAXLEN_FOLD+1];
+ U8 tmpbuf [UTF8_MAXBYTES+1];
+ U8 foldbuf[UTF8_MAXBYTES_CASE+1];
STRLEN len, foldlen;
if (c1 == c2) {
/* Upper and lower of 1st char are equal -
* probably not a "letter". */
while (s <= e) {
- c = utf8n_to_uvchr((U8*)s, UTF8_MAXLEN, &len,
+ c = utf8n_to_uvchr((U8*)s, UTF8_MAXBYTES, &len,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
if ( c == c1
}
else {
while (s <= e) {
- c = utf8n_to_uvchr((U8*)s, UTF8_MAXLEN, &len,
+ c = utf8n_to_uvchr((U8*)s, UTF8_MAXBYTES, &len,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
if (l >= PL_regeol)
sayNO;
if (NATIVE_TO_UNI(*(U8*)s) !=
- utf8n_to_uvuni((U8*)l, UTF8_MAXLEN, &ulen,
+ utf8n_to_uvuni((U8*)l, UTF8_MAXBYTES, &ulen,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY))
sayNO;
if (l >= PL_regeol)
sayNO;
if (NATIVE_TO_UNI(*((U8*)l)) !=
- utf8n_to_uvuni((U8*)s, UTF8_MAXLEN, &ulen,
+ utf8n_to_uvuni((U8*)s, UTF8_MAXBYTES, &ulen,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY))
sayNO;
*/
if (OP(scan) == REFF) {
STRLEN ulen1, ulen2;
- U8 tmpbuf1[UTF8_MAXLEN_UCLC+1];
- U8 tmpbuf2[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf1[UTF8_MAXBYTES_CASE+1];
+ U8 tmpbuf2[UTF8_MAXBYTES_CASE+1];
while (s < e) {
if (l >= PL_regeol)
sayNO;
else { /* UTF */
if (OP(text_node) == EXACTF || OP(text_node) == REFF) {
STRLEN ulen1, ulen2;
- U8 tmpbuf1[UTF8_MAXLEN_UCLC+1];
- U8 tmpbuf2[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf1[UTF8_MAXBYTES_CASE+1];
+ U8 tmpbuf2[UTF8_MAXBYTES_CASE+1];
to_utf8_lower((U8*)s, tmpbuf1, &ulen1);
to_utf8_upper((U8*)s, tmpbuf2, &ulen2);
- c1 = utf8n_to_uvuni(tmpbuf1, UTF8_MAXLEN, 0,
+ c1 = utf8n_to_uvuni(tmpbuf1, UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
- c2 = utf8n_to_uvuni(tmpbuf2, UTF8_MAXLEN, 0,
+ c2 = utf8n_to_uvuni(tmpbuf2, UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
}
else {
- c2 = c1 = utf8n_to_uvchr(s, UTF8_MAXLEN, 0,
+ c2 = c1 = utf8n_to_uvchr(s, UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
}
* utf8_distance(old, locinput) */
while (locinput <= e &&
utf8n_to_uvchr((U8*)locinput,
- UTF8_MAXLEN, &len,
+ UTF8_MAXBYTES, &len,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY) != (UV)c1) {
locinput += len;
* utf8_distance(old, locinput) */
while (locinput <= e) {
UV c = utf8n_to_uvchr((U8*)locinput,
- UTF8_MAXLEN, &len,
+ UTF8_MAXBYTES, &len,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
if (c == (UV)c1 || c == (UV)c2)
if (c1 != -1000) {
if (do_utf8)
c = utf8n_to_uvchr((U8*)PL_reginput,
- UTF8_MAXLEN, 0,
+ UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
else
if (c1 != -1000) {
if (do_utf8)
c = utf8n_to_uvchr((U8*)PL_reginput,
- UTF8_MAXLEN, 0,
+ UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
else
if (c1 != -1000) {
if (do_utf8)
c = utf8n_to_uvchr((U8*)PL_reginput,
- UTF8_MAXLEN, 0,
+ UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
else
STRLEN plen;
if (do_utf8 && !UTF8_IS_INVARIANT(c))
- c = utf8n_to_uvchr(p, UTF8_MAXLEN, &len,
+ c = utf8n_to_uvchr(p, UTF8_MAXBYTES, &len,
ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
plen = lenp ? *lenp : UNISKIP(NATIVE_TO_UNI(c));
}
}
if (!match) {
- U8 tmpbuf[UTF8_MAXLEN_FOLD+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
STRLEN tmplen;
to_utf8_fold(p, tmpbuf, &tmplen);
#endif
char esignbuf[4];
- U8 utf8buf[UTF8_MAXLEN+1];
+ U8 utf8buf[UTF8_MAXBYTES+1];
STRLEN esignlen = 0;
char *eptr = Nullch;
is("\U\x{587}" , "\x{535}\x{552}", "ligature uppercase");
# mktables had problems where many-to-one case mappings didn't work right.
-# The lib/unifold.t should give the fourth folding, "casefolding", a good
-# workout.
+# The lib/uni/fold.t should give the fourth folding, "casefolding", a good
+# workout (one cannot directly get that from Perl).
# \x{01C4} is LATIN CAPITAL LETTER DZ WITH CARON
# \x{01C5} is LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
# \x{01C6} is LATIN SMALL LETTER DZ WITH CARON
chop $a;
$a =~ s/^(\s*)(\w*)/$1\u$2/;
is($a, v10, "[perl #18857]");
- $test++;
}
}
UV uv = utf8_to_uvchr((U8*)str, 0);
if (uv < 0x100) {
- U8 tmpbuf[UTF8_MAXLEN+1], *d;
+ U8 tmpbuf[UTF8_MAXBYTES+1], *d;
d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv));
sv_setpvn(res, (char *)tmpbuf, d - tmpbuf);
I32 brackets = 1; /* bracket nesting level */
bool has_utf8 = FALSE; /* is there any utf8 content? */
I32 termcode; /* terminating char. code */
- U8 termstr[UTF8_MAXLEN]; /* terminating string */
+ U8 termstr[UTF8_MAXBYTES]; /* terminating string */
STRLEN termlen; /* length of terminating string */
char *last = NULL; /* last position for nesting bracket */
if (!isALPHA(*pos)) {
UV rev;
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
U8 *tmpend;
if (*s == 'v') s++; /* get past 'v' */
=for apidoc A|U8 *|uvuni_to_utf8_flags|U8 *d|UV uv|UV flags
Adds the UTF-8 representation of the Unicode codepoint C<uv> to the end
-of the string C<d>; C<d> should be have at least C<UTF8_MAXLEN+1> free
+of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free
bytes available. The return value is the pointer to the byte after the
end of the new character. In other words,
UV
Perl_utf8_to_uvchr(pTHX_ U8 *s, STRLEN *retlen)
{
- return Perl_utf8n_to_uvchr(aTHX_ s, UTF8_MAXLEN, retlen,
+ return Perl_utf8n_to_uvchr(aTHX_ s, UTF8_MAXBYTES, retlen,
ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
}
Perl_utf8_to_uvuni(pTHX_ U8 *s, STRLEN *retlen)
{
/* Call the low level routine asking for checks */
- return Perl_utf8n_to_uvuni(aTHX_ s, UTF8_MAXLEN, retlen,
+ return Perl_utf8n_to_uvuni(aTHX_ s, UTF8_MAXBYTES, retlen,
ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
}
bool
Perl_is_uni_alnum(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_alnum(tmpbuf);
}
bool
Perl_is_uni_alnumc(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_alnumc(tmpbuf);
}
bool
Perl_is_uni_idfirst(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_idfirst(tmpbuf);
}
bool
Perl_is_uni_alpha(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_alpha(tmpbuf);
}
bool
Perl_is_uni_ascii(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_ascii(tmpbuf);
}
bool
Perl_is_uni_space(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_space(tmpbuf);
}
bool
Perl_is_uni_digit(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_digit(tmpbuf);
}
bool
Perl_is_uni_upper(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_upper(tmpbuf);
}
bool
Perl_is_uni_lower(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_lower(tmpbuf);
}
bool
Perl_is_uni_cntrl(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_cntrl(tmpbuf);
}
bool
Perl_is_uni_graph(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_graph(tmpbuf);
}
bool
Perl_is_uni_print(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_print(tmpbuf);
}
bool
Perl_is_uni_punct(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN+1];
+ U8 tmpbuf[UTF8_MAXBYTES+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_punct(tmpbuf);
}
bool
Perl_is_uni_xdigit(pTHX_ UV c)
{
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
uvchr_to_utf8(tmpbuf, c);
return is_utf8_xdigit(tmpbuf);
}
/* XXX returns only the first character -- do not use XXX */
/* XXX no locale support yet */
STRLEN len;
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
return (U32)to_uni_upper(c, tmpbuf, &len);
}
/* XXX returns only the first character XXX -- do not use XXX */
/* XXX no locale support yet */
STRLEN len;
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
return (U32)to_uni_title(c, tmpbuf, &len);
}
/* XXX returns only the first character -- do not use XXX */
/* XXX no locale support yet */
STRLEN len;
- U8 tmpbuf[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
return (U32)to_uni_lower(c, tmpbuf, &len);
}
Perl_to_utf8_case(pTHX_ U8 *p, U8* ustrp, STRLEN *lenp, SV **swashp, char *normal, char *special)
{
UV uv0, uv1;
- U8 tmpbuf[UTF8_MAXLEN_FOLD+1];
+ U8 tmpbuf[UTF8_MAXBYTES_CASE+1];
STRLEN len = 0;
uv0 = utf8_to_uvchr(p, 0);
Convert the UTF-8 encoded character at p to its uppercase version and
store that in UTF-8 in ustrp and its length in bytes in lenp. Note
-that the ustrp needs to be at least UTF8_MAXLEN_UCLC+1 bytes since the
-uppercase version may be longer than the original character (up to two
-characters).
+that the ustrp needs to be at least UTF8_MAXBYTES_CASE+1 bytes since
+the uppercase version may be longer than the original character.
The first character of the uppercased version is returned
(but note, as explained above, that there may be more.)
Convert the UTF-8 encoded character at p to its titlecase version and
store that in UTF-8 in ustrp and its length in bytes in lenp. Note
-that the ustrp needs to be at least UTF8_MAXLEN_UCLC+1 bytes since the
-titlecase version may be longer than the original character (up to two
-characters).
+that the ustrp needs to be at least UTF8_MAXBYTES_CASE+1 bytes since the
+titlecase version may be longer than the original character.
The first character of the titlecased version is returned
(but note, as explained above, that there may be more.)
Convert the UTF-8 encoded character at p to its lowercase version and
store that in UTF-8 in ustrp and its length in bytes in lenp. Note
-that the ustrp needs to be at least UTF8_MAXLEN_UCLC+1 bytes since the
-lowercase version may be longer than the original character (up to two
-characters).
+that the ustrp needs to be at least UTF8_MAXBYTES_CASE+1 bytes since the
+lowercase version may be longer than the original character.
The first character of the lowercased version is returned
(but note, as explained above, that there may be more.)
Convert the UTF-8 encoded character at p to its foldcase version and
store that in UTF-8 in ustrp and its length in bytes in lenp. Note
-that the ustrp needs to be at least UTF8_MAXLEN_FOLD+1 bytes since the
+that the ustrp needs to be at least UTF8_MAXBYTES_CASE+1 bytes since the
foldcase version may be longer than the original character (up to
three characters).
/* We use utf8n_to_uvuni() as we want an index into
Unicode tables, not a native character number.
*/
- UV code_point = utf8n_to_uvuni(ptr, UTF8_MAXLEN, 0,
+ UV code_point = utf8n_to_uvuni(ptr, UTF8_MAXBYTES, 0,
ckWARN(WARN_UTF8) ?
0 : UTF8_ALLOW_ANY);
SV *errsv_save;
=for apidoc A|U8 *|uvchr_to_utf8|U8 *d|UV uv
Adds the UTF-8 representation of the Native codepoint C<uv> to the end
-of the string C<d>; C<d> should be have at least C<UTF8_MAXLEN+1> free
+of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free
bytes available. The return value is the pointer to the byte after the
end of the new character. In other words,
register U8 *e1 = 0, *f1 = 0, *q1 = 0;
register U8 *e2 = 0, *f2 = 0, *q2 = 0;
STRLEN n1 = 0, n2 = 0;
- U8 foldbuf1[UTF8_MAXLEN_FOLD+1];
- U8 foldbuf2[UTF8_MAXLEN_FOLD+1];
+ U8 foldbuf1[UTF8_MAXBYTES_CASE+1];
+ U8 foldbuf2[UTF8_MAXBYTES_CASE+1];
U8 natbuf[1+1];
STRLEN foldlen1, foldlen2;
bool match;
#define isIDFIRST_lazy(p) isIDFIRST_lazy_if(p,1)
#define isALNUM_lazy(p) isALNUM_lazy_if(p,1)
-/* how wide can a single UTF-8 encoded character become */
-#define UTF8_MAXLEN 13
-/* how wide a character can become when upper/lowercased */
-#define UTF8_MAXLEN_UCLC_MULT 3
-#define UTF8_MAXLEN_UCLC (UTF8_MAXLEN*UTF8_MAXLEN_UCLC_MULT)
-/* how wide a character can become when casefolded */
-#define UTF8_MAXLEN_FOLD_MULT 3
-#define UTF8_MAXLEN_FOLD (UTF8_MAXLEN*UTF8_MAXLEN_FOLD_MULT)
+#define UTF8_MAXBYTES 13
+/* How wide can a single UTF-8 encoded character become in bytes.
+ * NOTE: Strictly speaking Perl's UTF-8 should not be called UTF-8
+ * since UTF-8 is an encoding of Unicode and given Unicode's current
+ * upper limit only four bytes is possible. Perl thinks of UTF-8
+ * as a way to encode non-negative integers in a binary format. */
+#define UTF8_MAXLEN UTF8_MAXBYTES
+
+#define UTF8_MAXLEN_UCLC 3 /* Obsolete, do not use. */
+#define UTF8_MAXLEN_UCLC_MULT 39 /* Obsolete, do not use. */
+#define UTF8_MAXLEN_FOLD 3 /* Obsolete, do not use. */
+#define UTF8_MAXLEN_FOLD_MULT 39 /* Obsolete, do not use. */
+
+/* The maximum number of UTF-8 bytes a single Unicode character can
+ * uppercase/lowercase/fold into; this number depends on the Unicode
+ * version. An example of maximal expansion is the U+03B0 which
+ * uppercases to U+03C5 U+0308 U+0301. The Unicode databases that
+ * tell these things are UnicodeDatabase.txt, CaseFolding.txt, and
+ * SpecialCasing.txt. */
+#define UTF8_MAXBYTES_CASE 6
#define IN_BYTES (PL_curcop->op_private & HINT_BYTES)
#define DO_UTF8(sv) (SvUTF8(sv) && !IN_BYTES)
projects / p5sagit/p5-mst-13.2.git / commitdiff