/* utf8.c
*
- * Copyright (c) 1998-1999, Larry Wall
+ * Copyright (c) 1998-2000, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
/* Unicode support */
U8 *
-Perl_uv_to_utf8(pTHX_ U8 *d, UV uv)
+Perl_uv_to_utf8(pTHX_ U8 *d, UV uv) /* the d must be UTF8_MAXLEN+1 deep */
{
if (uv < 0x80) {
*d++ = uv;
+ *d = 0;
return d;
}
if (uv < 0x800) {
*d++ = (( uv >> 6) | 0xc0);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
if (uv < 0x10000) {
*d++ = (( uv >> 12) | 0xe0);
*d++ = (((uv >> 6) & 0x3f) | 0x80);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
if (uv < 0x200000) {
*d++ = (((uv >> 12) & 0x3f) | 0x80);
*d++ = (((uv >> 6) & 0x3f) | 0x80);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
if (uv < 0x4000000) {
*d++ = (((uv >> 12) & 0x3f) | 0x80);
*d++ = (((uv >> 6) & 0x3f) | 0x80);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
if (uv < 0x80000000) {
*d++ = (((uv >> 12) & 0x3f) | 0x80);
*d++ = (((uv >> 6) & 0x3f) | 0x80);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
-#ifdef Quad_t
- if (uv < 0x2000000000)
+#ifdef HAS_QUAD
+ if (uv < UTF8_QUAD_MAX)
#endif
{
*d++ = 0xfe; /* Can't match U+FEFF! */
*d++ = (((uv >> 12) & 0x3f) | 0x80);
*d++ = (((uv >> 6) & 0x3f) | 0x80);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
-#ifdef Quad_t
+#ifdef HAS_QUAD
{
*d++ = 0xff; /* Can't match U+FFFE! */
+ *d++ = 0x80; /* 6 Reserved bits */
+ *d++ = (((uv >> 60) & 0x0f) | 0x80); /* 2 Reserved bits */
+ *d++ = (((uv >> 54) & 0x3f) | 0x80);
+ *d++ = (((uv >> 48) & 0x3f) | 0x80);
+ *d++ = (((uv >> 42) & 0x3f) | 0x80);
*d++ = (((uv >> 36) & 0x3f) | 0x80);
*d++ = (((uv >> 30) & 0x3f) | 0x80);
*d++ = (((uv >> 24) & 0x3f) | 0x80);
*d++ = (((uv >> 12) & 0x3f) | 0x80);
*d++ = (((uv >> 6) & 0x3f) | 0x80);
*d++ = (( uv & 0x3f) | 0x80);
+ *d = 0;
return d;
}
#endif
}
+/* Tests if some arbitrary number of bytes begins in a valid UTF-8 character.
+ * The actual number of bytes in the UTF-8 character will be returned if it
+ * is valid, otherwise 0. */
+STRLEN
+Perl_is_utf8_char(pTHX_ U8 *s)
+{
+ U8 u = *s;
+ STRLEN slen, len;
+ UV uv, ouv;
+
+ if (u <= 0x7f)
+ return 1;
+
+ if (u >= 0x80 && u <= 0xbf)
+ return 0;
+
+ len = UTF8SKIP(s);
+
+ if (len < 2 || (u >= 0xc0 && u <= 0xfd && s[1] < 0x80))
+ return 0;
+
+ slen = len - 1;
+ s++;
+ uv = u;
+ ouv = uv;
+ while (slen--) {
+ if ((*s & 0xc0) != 0x80)
+ return 0;
+ uv = UTF8_ACCUMULATE(uv, *s);
+ if (uv < ouv)
+ return 0;
+ ouv = uv;
+ s++;
+ }
+
+ if (UNISKIP(uv) < len)
+ return 0;
+
+ return len;
+}
+
+/*
+=for apidoc Am|is_utf8_string|U8 *s|STRLEN len
+
+Returns true if first C<len> bytes of the given string form valid a UTF8
+string, false otherwise.
+
+=cut
+*/
+
+bool
+Perl_is_utf8_string(pTHX_ U8 *s, STRLEN len)
+{
+ U8* x = s;
+ U8* send = s + len;
+ STRLEN c;
+
+ while (x < send) {
+ c = is_utf8_char(x);
+ if (!c)
+ return FALSE;
+ x += c;
+ if (x > send)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/*
+=for apidoc Am|U8* s|utf8_to_uv|STRLEN curlen|STRLEN *retlen|U32 flags
+
+Returns the character value of the first character in the string C<s>
+which is assumed to be in UTF8 encoding and no longer than C<curlen>;
+C<retlen> will be set to the length, in bytes, of that character,
+and the pointer C<s> will be advanced to the end of the character.
+
+If C<s> does not point to a well-formed UTF8 character, the behaviour
+is dependent on the value of C<flags>: if it contains UTF8_CHECK_ONLY,
+it is assumed that the caller will raise a warning, and this function
+will set C<retlen> to C<-1> and return zero. If the C<flags> does not
+contain UTF8_CHECK_ONLY, the UNICODE_REPLACEMENT (0xFFFD) will be
+returned, and C<retlen> will be set to the expected length of the
+UTF-8 character in bytes. The C<flags> can also contain various flags
+to allow deviations from the strict UTF-8 encoding (see F<utf8.h>).
+
+=cut */
+
UV
-Perl_utf8_to_uv(pTHX_ U8* s, I32* retlen)
+Perl_utf8_to_uv(pTHX_ U8* s, STRLEN curlen, STRLEN* retlen, U32 flags)
{
- UV uv = *s;
- int len;
- if (!(uv & 0x80)) {
- if (retlen)
- *retlen = 1;
- return *s;
+ UV uv = *s, ouv;
+ STRLEN len = 1;
+#ifdef EBCDIC
+ bool dowarn = 0;
+#else
+ bool dowarn = ckWARN_d(WARN_UTF8);
+#endif
+ STRLEN expectlen = 0;
+
+ if (curlen == 0) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (an empty string)");
+ goto malformed;
}
- if (!(uv & 0x40)) {
- dTHR;
- if (ckWARN_d(WARN_UTF8))
- Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
+
+ if (UTF8_IS_ASCII(uv)) {
if (retlen)
*retlen = 1;
return *s;
}
- if (!(uv & 0x20)) { len = 2; uv &= 0x1f; }
- else if (!(uv & 0x10)) { len = 3; uv &= 0x0f; }
- else if (!(uv & 0x08)) { len = 4; uv &= 0x07; }
- else if (!(uv & 0x04)) { len = 5; uv &= 0x03; }
- else if (!(uv & 0x02)) { len = 6; uv &= 0x01; }
- else if (!(uv & 0x01)) { len = 7; uv &= 0x00; }
- else len = 8; /* whoa! */
+ if (UTF8_IS_CONTINUATION(uv) &&
+ !(flags & UTF8_ALLOW_CONTINUATION)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (unexpected continuation byte 0x%02"UVxf")",
+ uv);
+ goto malformed;
+ }
+ if (UTF8_IS_START(uv) && curlen > 1 && !UTF8_IS_CONTINUATION(s[1]) &&
+ !(flags & UTF8_ALLOW_NON_CONTINUATION)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (unexpected non-continuation byte 0x%02"UVxf" after start byte 0x%02"UVxf")",
+ (UV)s[1], uv);
+ goto malformed;
+ }
+
+ if ((uv == 0xfe || uv == 0xff) &&
+ !(flags & UTF8_ALLOW_FE_FF)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (byte 0x%02"UVxf")",
+ uv);
+ goto malformed;
+ }
+
+ if (!(uv & 0x20)) { len = 2; uv &= 0x1f; }
+ else if (!(uv & 0x10)) { len = 3; uv &= 0x0f; }
+ else if (!(uv & 0x08)) { len = 4; uv &= 0x07; }
+ else if (!(uv & 0x04)) { len = 5; uv &= 0x03; }
+ else if (!(uv & 0x02)) { len = 6; uv &= 0x01; }
+ else if (!(uv & 0x01)) { len = 7; uv = 0; }
+ else { len = 13; uv = 0; } /* whoa! */
+
if (retlen)
*retlen = len;
- --len;
+
+ expectlen = len;
+
+ if ((curlen < expectlen) &&
+ !(flags & UTF8_ALLOW_SHORT)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (%d byte%s, need %d)",
+ curlen, curlen == 1 ? "" : "s", expectlen);
+ goto malformed;
+ }
+
+ len--;
s++;
+ ouv = uv;
+
while (len--) {
- if ((*s & 0xc0) != 0x80) {
- dTHR;
- if (ckWARN_d(WARN_UTF8))
- Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
- if (retlen)
- *retlen -= len + 1;
- return 0xfffd;
+ if (!UTF8_IS_CONTINUATION(*s) &&
+ !(flags & UTF8_ALLOW_NON_CONTINUATION)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (unexpected non-continuation byte 0x%02x)",
+ *s);
+ goto malformed;
}
else
- uv = (uv << 6) | (*s++ & 0x3f);
+ uv = UTF8_ACCUMULATE(uv, *s);
+ if (uv < ouv) {
+ /* This cannot be allowed. */
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (overflow at 0x%"UVxf", byte 0x%02x)",
+ ouv, *s);
+ goto malformed;
+ }
+ s++;
+ ouv = uv;
}
+
+ if (UNICODE_IS_SURROGATE(uv) &&
+ !(flags & UTF8_ALLOW_SURROGATE)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (UTF-16 surrogate 0x%04"UVxf")",
+ uv);
+ goto malformed;
+ } else if (UNICODE_IS_BYTE_ORDER_MARK(uv) &&
+ !(flags & UTF8_ALLOW_BOM)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (byte order mark 0x%04"UVxf")",
+ uv);
+ goto malformed;
+ } else if ((expectlen > UNISKIP(uv)) &&
+ !(flags & UTF8_ALLOW_LONG)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (%d byte%s, need %d)",
+ expectlen, expectlen == 1 ? "": "s", UNISKIP(uv));
+ goto malformed;
+ } else if (UNICODE_IS_ILLEGAL(uv) &&
+ !(flags & UTF8_ALLOW_FFFF)) {
+ if (dowarn)
+ Perl_warner(aTHX_ WARN_UTF8,
+ "Malformed UTF-8 character (character 0x%04"UVxf")",
+ uv);
+ goto malformed;
+ }
+
return uv;
+
+malformed:
+
+ if (flags & UTF8_CHECK_ONLY) {
+ if (retlen)
+ *retlen = -1;
+ return 0;
+ }
+
+ if (retlen)
+ *retlen = expectlen;
+
+ return UNICODE_REPLACEMENT;
}
-/* utf8_distance(a,b) is intended to be a - b in pointer arithmetic */
+/*
+=for apidoc Am|U8* s|utf8_to_uv_simple|STRLEN *retlen
+
+Returns the character value of the first character in the string C<s>
+which is assumed to be in UTF8 encoding; C<retlen> will be set to the
+length, in bytes, of that character, and the pointer C<s> will be
+advanced to the end of the character.
-I32
+If C<s> does not point to a well-formed UTF8 character, zero is
+returned and retlen is set, if possible, to -1.
+
+=cut
+*/
+
+UV
+Perl_utf8_to_uv_simple(pTHX_ U8* s, STRLEN* retlen)
+{
+ return Perl_utf8_to_uv(aTHX_ s, UTF8_MAXLEN, retlen, 0);
+}
+
+/*
+=for apidoc Am|STRLEN|utf8_length|U8* s|U8 *e
+
+Return the length of the UTF-8 char encoded string C<s> in characters.
+Stops at C<e> (inclusive). If C<e E<lt> s> or if the scan would end
+up past C<e>, croaks.
+
+=cut
+*/
+
+STRLEN
+Perl_utf8_length(pTHX_ U8* s, U8* e)
+{
+ STRLEN len = 0;
+
+ /* Note: cannot use UTF8_IS_...() too eagerly here since e.g.
+ * the bitops (especially ~) can create illegal UTF-8.
+ * In other words: in Perl UTF-8 is not just for Unicode. */
+
+ if (e < s)
+ Perl_croak(aTHX_ "panic: utf8_length: unexpected end");
+ while (s < e) {
+ U8 t = UTF8SKIP(s);
+
+ if (e - s < t)
+ Perl_croak(aTHX_ "panic: utf8_length: unaligned end");
+ s += t;
+ len++;
+ }
+
+ return len;
+}
+
+/*
+=for apidoc Am|IV|utf8_distance|U8 *a|U8 *b
+
+Returns the number of UTF8 characters between the UTF-8 pointers C<a>
+and C<b>.
+
+WARNING: use only if you *know* that the pointers point inside the
+same UTF-8 buffer.
+
+=cut */
+
+IV
Perl_utf8_distance(pTHX_ U8 *a, U8 *b)
{
- I32 off = 0;
+ IV off = 0;
+
+ /* Note: cannot use UTF8_IS_...() too eagerly here since e.g.
+ * the bitops (especially ~) can create illegal UTF-8.
+ * In other words: in Perl UTF-8 is not just for Unicode. */
+
if (a < b) {
while (a < b) {
- a += UTF8SKIP(a);
+ U8 c = UTF8SKIP(a);
+
+ if (b - a < c)
+ Perl_croak(aTHX_ "panic: utf8_distance: unaligned end");
+ a += c;
off--;
}
}
else {
while (b < a) {
- b += UTF8SKIP(b);
+ U8 c = UTF8SKIP(b);
+
+ if (a - b < c)
+ Perl_croak(aTHX_ "panic: utf8_distance: unaligned end");
+ b += c;
off++;
}
}
+
return off;
}
-/* WARNING: do not use the following unless you *know* off is within bounds */
+/*
+=for apidoc Am|U8*|utf8_hop|U8 *s|I32 off
+
+Return the UTF-8 pointer C<s> displaced by C<off> characters, either
+forward or backward.
+
+WARNING: do not use the following unless you *know* C<off> is within
+the UTF-8 data pointed to by C<s> *and* that on entry C<s> is aligned
+on the first byte of character or just after the last byte of a character.
+
+=cut */
U8 *
Perl_utf8_hop(pTHX_ U8 *s, I32 off)
{
+ /* Note: cannot use UTF8_IS_...() too eagerly here since e.g
+ * the bitops (especially ~) can create illegal UTF-8.
+ * In other words: in Perl UTF-8 is not just for Unicode. */
+
if (off >= 0) {
while (off--)
s += UTF8SKIP(s);
else {
while (off++) {
s--;
- if (*s & 0x80) {
- while ((*s & 0xc0) == 0x80)
- s--;
- }
+ while (UTF8_IS_CONTINUATION(*s))
+ s--;
}
}
return s;
}
-/* XXX NOTHING CALLS THE FOLLOWING TWO ROUTINES YET!!! */
/*
- * Convert native or reversed UTF-16 to UTF-8.
+=for apidoc Am|U8 *|utf8_to_bytes|U8 *s|STRLEN *len
+
+Converts a string C<s> of length C<len> from UTF8 into byte encoding.
+Unlike C<bytes_to_utf8>, this over-writes the original string, and
+updates len to contain the new length.
+Returns zero on failure, setting C<len> to -1.
+
+=cut
+*/
+
+U8 *
+Perl_utf8_to_bytes(pTHX_ U8* s, STRLEN *len)
+{
+ U8 *send;
+ U8 *d;
+ U8 *save = s;
+
+ /* ensure valid UTF8 and chars < 256 before updating string */
+ for (send = s + *len; s < send; ) {
+ U8 c = *s++;
+
+ if (c >= 0x80 &&
+ ((s >= send) ||
+ ((*s++ & 0xc0) != 0x80) || ((c & 0xfe) != 0xc2))) {
+ *len = -1;
+ return 0;
+ }
+ }
+
+ d = s = save;
+ while (s < send) {
+ if (*s < 0x80) {
+ *d++ = *s++;
+ }
+ else {
+ STRLEN ulen;
+ *d++ = (U8)utf8_to_uv_simple(s, &ulen);
+ s += ulen;
+ }
+ }
+ *d = '\0';
+ *len = d - save;
+ return save;
+}
+
+/*
+=for apidoc Am|U8 *|bytes_to_utf8|U8 *s|STRLEN *len
+
+Converts a string C<s> of length C<len> from ASCII into UTF8 encoding.
+Returns a pointer to the newly-created string, and sets C<len> to
+reflect the new length.
+
+=cut
+*/
+
+U8*
+Perl_bytes_to_utf8(pTHX_ U8* s, STRLEN *len)
+{
+ U8 *send;
+ U8 *d;
+ U8 *dst;
+ send = s + (*len);
+
+ Newz(801, d, (*len) * 2 + 1, U8);
+ dst = d;
+
+ while (s < send) {
+ if (*s < 0x80)
+ *d++ = *s++;
+ else {
+ UV uv = *s++;
+ *d++ = (( uv >> 6) | 0xc0);
+ *d++ = (( uv & 0x3f) | 0x80);
+ }
+ }
+ *d = '\0';
+ *len = d-dst;
+ return dst;
+}
+
+/*
+ * Convert native (big-endian) or reversed (little-endian) UTF-16 to UTF-8.
*
* Destination must be pre-extended to 3/2 source. Do not use in-place.
* We optimize for native, for obvious reasons. */
U8*
-Perl_utf16_to_utf8(pTHX_ U16* p, U8* d, I32 bytelen)
+Perl_utf16_to_utf8(pTHX_ U8* p, U8* d, I32 bytelen, I32 *newlen)
{
- U16* pend = p + bytelen / 2;
+ U8* pend;
+ U8* dstart = d;
+
+ if (bytelen & 1)
+ Perl_croak(aTHX_ "panic: utf16_to_utf8: odd bytelen");
+
+ pend = p + bytelen;
+
while (p < pend) {
- UV uv = *p++;
+ UV uv = (p[0] << 8) + p[1]; /* UTF-16BE */
+ p += 2;
if (uv < 0x80) {
*d++ = uv;
continue;
continue;
}
if (uv >= 0xd800 && uv < 0xdbff) { /* surrogates */
- dTHR;
- int low = *p++;
- if (low < 0xdc00 || low >= 0xdfff) {
- if (ckWARN_d(WARN_UTF8))
- Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-16 surrogate");
- p--;
- uv = 0xfffd;
- }
+ UV low = *p++;
+ if (low < 0xdc00 || low >= 0xdfff)
+ Perl_croak(aTHX_ "Malformed UTF-16 surrogate");
uv = ((uv - 0xd800) << 10) + (low - 0xdc00) + 0x10000;
}
if (uv < 0x10000) {
continue;
}
}
+ *newlen = d - dstart;
return d;
}
/* Note: this one is slightly destructive of the source. */
U8*
-Perl_utf16_to_utf8_reversed(pTHX_ U16* p, U8* d, I32 bytelen)
+Perl_utf16_to_utf8_reversed(pTHX_ U8* p, U8* d, I32 bytelen, I32 *newlen)
{
U8* s = (U8*)p;
U8* send = s + bytelen;
s[1] = tmp;
s += 2;
}
- return utf16_to_utf8(p, d, bytelen);
+ return utf16_to_utf8(p, d, bytelen, newlen);
}
/* for now these are all defined (inefficiently) in terms of the utf8 versions */
bool
Perl_is_uni_alnum(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_alnum(tmpbuf);
}
bool
+Perl_is_uni_alnumc(pTHX_ U32 c)
+{
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ uv_to_utf8(tmpbuf, (UV)c);
+ return is_utf8_alnumc(tmpbuf);
+}
+
+bool
Perl_is_uni_idfirst(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_idfirst(tmpbuf);
}
bool
Perl_is_uni_alpha(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_alpha(tmpbuf);
}
bool
+Perl_is_uni_ascii(pTHX_ U32 c)
+{
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ uv_to_utf8(tmpbuf, (UV)c);
+ return is_utf8_ascii(tmpbuf);
+}
+
+bool
Perl_is_uni_space(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_space(tmpbuf);
}
bool
Perl_is_uni_digit(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_digit(tmpbuf);
}
bool
Perl_is_uni_upper(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_upper(tmpbuf);
}
bool
Perl_is_uni_lower(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_lower(tmpbuf);
}
bool
+Perl_is_uni_cntrl(pTHX_ U32 c)
+{
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ uv_to_utf8(tmpbuf, (UV)c);
+ return is_utf8_cntrl(tmpbuf);
+}
+
+bool
+Perl_is_uni_graph(pTHX_ U32 c)
+{
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ uv_to_utf8(tmpbuf, (UV)c);
+ return is_utf8_graph(tmpbuf);
+}
+
+bool
Perl_is_uni_print(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return is_utf8_print(tmpbuf);
}
+bool
+Perl_is_uni_punct(pTHX_ U32 c)
+{
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ uv_to_utf8(tmpbuf, (UV)c);
+ return is_utf8_punct(tmpbuf);
+}
+
+bool
+Perl_is_uni_xdigit(pTHX_ U32 c)
+{
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ uv_to_utf8(tmpbuf, (UV)c);
+ return is_utf8_xdigit(tmpbuf);
+}
+
U32
Perl_to_uni_upper(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return to_utf8_upper(tmpbuf);
}
U32
Perl_to_uni_title(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return to_utf8_title(tmpbuf);
}
U32
Perl_to_uni_lower(pTHX_ U32 c)
{
- U8 tmpbuf[10];
+ U8 tmpbuf[UTF8_MAXLEN+1];
uv_to_utf8(tmpbuf, (UV)c);
return to_utf8_lower(tmpbuf);
}
}
bool
+Perl_is_uni_alnumc_lc(pTHX_ U32 c)
+{
+ return is_uni_alnumc(c); /* XXX no locale support yet */
+}
+
+bool
Perl_is_uni_idfirst_lc(pTHX_ U32 c)
{
return is_uni_idfirst(c); /* XXX no locale support yet */
}
bool
+Perl_is_uni_ascii_lc(pTHX_ U32 c)
+{
+ return is_uni_ascii(c); /* XXX no locale support yet */
+}
+
+bool
Perl_is_uni_space_lc(pTHX_ U32 c)
{
return is_uni_space(c); /* XXX no locale support yet */
}
bool
+Perl_is_uni_cntrl_lc(pTHX_ U32 c)
+{
+ return is_uni_cntrl(c); /* XXX no locale support yet */
+}
+
+bool
+Perl_is_uni_graph_lc(pTHX_ U32 c)
+{
+ return is_uni_graph(c); /* XXX no locale support yet */
+}
+
+bool
Perl_is_uni_print_lc(pTHX_ U32 c)
{
return is_uni_print(c); /* XXX no locale support yet */
}
+bool
+Perl_is_uni_punct_lc(pTHX_ U32 c)
+{
+ return is_uni_punct(c); /* XXX no locale support yet */
+}
+
+bool
+Perl_is_uni_xdigit_lc(pTHX_ U32 c)
+{
+ return is_uni_xdigit(c); /* XXX no locale support yet */
+}
+
U32
Perl_to_uni_upper_lc(pTHX_ U32 c)
{
return to_uni_lower(c); /* XXX no locale support yet */
}
-
bool
Perl_is_utf8_alnum(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_alnum)
- PL_utf8_alnum = swash_init("utf8", "IsAlnum", &PL_sv_undef, 0, 0);
+ /* NOTE: "IsWord", not "IsAlnum", since Alnum is a true
+ * descendant of isalnum(3), in other words, it doesn't
+ * contain the '_'. --jhi */
+ PL_utf8_alnum = swash_init("utf8", "IsWord", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_alnum, p);
/* return *p == '_' || is_utf8_alpha(p) || is_utf8_digit(p); */
#ifdef SURPRISINGLY_SLOWER /* probably because alpha is usually true */
}
bool
+Perl_is_utf8_alnumc(pTHX_ U8 *p)
+{
+ if (!is_utf8_char(p))
+ return FALSE;
+ if (!PL_utf8_alnum)
+ PL_utf8_alnum = swash_init("utf8", "IsAlnumC", &PL_sv_undef, 0, 0);
+ return swash_fetch(PL_utf8_alnum, p);
+/* return is_utf8_alpha(p) || is_utf8_digit(p); */
+#ifdef SURPRISINGLY_SLOWER /* probably because alpha is usually true */
+ if (!PL_utf8_alnum)
+ PL_utf8_alnum = swash_init("utf8", "",
+ sv_2mortal(newSVpv("+utf8::IsAlpha\n+utf8::IsDigit\n005F\n",0)), 0, 0);
+ return swash_fetch(PL_utf8_alnum, p);
+#endif
+}
+
+bool
Perl_is_utf8_idfirst(pTHX_ U8 *p)
{
return *p == '_' || is_utf8_alpha(p);
bool
Perl_is_utf8_alpha(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_alpha)
PL_utf8_alpha = swash_init("utf8", "IsAlpha", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_alpha, p);
}
bool
+Perl_is_utf8_ascii(pTHX_ U8 *p)
+{
+ if (!is_utf8_char(p))
+ return FALSE;
+ if (!PL_utf8_ascii)
+ PL_utf8_ascii = swash_init("utf8", "IsAscii", &PL_sv_undef, 0, 0);
+ return swash_fetch(PL_utf8_ascii, p);
+}
+
+bool
Perl_is_utf8_space(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_space)
- PL_utf8_space = swash_init("utf8", "IsSpace", &PL_sv_undef, 0, 0);
+ PL_utf8_space = swash_init("utf8", "IsSpacePerl", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_space, p);
}
bool
Perl_is_utf8_digit(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_digit)
PL_utf8_digit = swash_init("utf8", "IsDigit", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_digit, p);
bool
Perl_is_utf8_upper(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_upper)
PL_utf8_upper = swash_init("utf8", "IsUpper", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_upper, p);
bool
Perl_is_utf8_lower(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_lower)
PL_utf8_lower = swash_init("utf8", "IsLower", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_lower, p);
}
bool
+Perl_is_utf8_cntrl(pTHX_ U8 *p)
+{
+ if (!is_utf8_char(p))
+ return FALSE;
+ if (!PL_utf8_cntrl)
+ PL_utf8_cntrl = swash_init("utf8", "IsCntrl", &PL_sv_undef, 0, 0);
+ return swash_fetch(PL_utf8_cntrl, p);
+}
+
+bool
+Perl_is_utf8_graph(pTHX_ U8 *p)
+{
+ if (!is_utf8_char(p))
+ return FALSE;
+ if (!PL_utf8_graph)
+ PL_utf8_graph = swash_init("utf8", "IsGraph", &PL_sv_undef, 0, 0);
+ return swash_fetch(PL_utf8_graph, p);
+}
+
+bool
Perl_is_utf8_print(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_print)
PL_utf8_print = swash_init("utf8", "IsPrint", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_print, p);
}
bool
+Perl_is_utf8_punct(pTHX_ U8 *p)
+{
+ if (!is_utf8_char(p))
+ return FALSE;
+ if (!PL_utf8_punct)
+ PL_utf8_punct = swash_init("utf8", "IsPunct", &PL_sv_undef, 0, 0);
+ return swash_fetch(PL_utf8_punct, p);
+}
+
+bool
+Perl_is_utf8_xdigit(pTHX_ U8 *p)
+{
+ if (!is_utf8_char(p))
+ return FALSE;
+ if (!PL_utf8_xdigit)
+ PL_utf8_xdigit = swash_init("utf8", "IsXDigit", &PL_sv_undef, 0, 0);
+ return swash_fetch(PL_utf8_xdigit, p);
+}
+
+bool
Perl_is_utf8_mark(pTHX_ U8 *p)
{
+ if (!is_utf8_char(p))
+ return FALSE;
if (!PL_utf8_mark)
PL_utf8_mark = swash_init("utf8", "IsM", &PL_sv_undef, 0, 0);
return swash_fetch(PL_utf8_mark, p);
if (!PL_utf8_toupper)
PL_utf8_toupper = swash_init("utf8", "ToUpper", &PL_sv_undef, 4, 0);
uv = swash_fetch(PL_utf8_toupper, p);
- return uv ? uv : utf8_to_uv(p,0);
+ return uv ? uv : utf8_to_uv(p,UTF8_MAXLEN,0,0);
}
UV
if (!PL_utf8_totitle)
PL_utf8_totitle = swash_init("utf8", "ToTitle", &PL_sv_undef, 4, 0);
uv = swash_fetch(PL_utf8_totitle, p);
- return uv ? uv : utf8_to_uv(p,0);
+ return uv ? uv : utf8_to_uv(p,UTF8_MAXLEN,0,0);
}
UV
if (!PL_utf8_tolower)
PL_utf8_tolower = swash_init("utf8", "ToLower", &PL_sv_undef, 4, 0);
uv = swash_fetch(PL_utf8_tolower, p);
- return uv ? uv : utf8_to_uv(p,0);
+ return uv ? uv : utf8_to_uv(p,UTF8_MAXLEN,0,0);
}
/* a "swash" is a swatch hash */
{
SV* retval;
char tmpbuf[256];
- dSP;
+ dSP;
+
+ if (!gv_stashpv(pkg, 0)) { /* demand load utf8 */
+ ENTER;
+ Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, newSVpv(pkg,0), Nullsv);
+ LEAVE;
+ }
+ SPAGAIN;
PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
EXTEND(SP,5);
if (PL_curcop == &PL_compiling) /* XXX ought to be handled by lex_start */
strncpy(tmpbuf, PL_tokenbuf, sizeof tmpbuf);
if (call_method("SWASHNEW", G_SCALAR))
- retval = newSVsv(*PL_stack_sp--);
+ retval = newSVsv(*PL_stack_sp--);
else
retval = &PL_sv_undef;
LEAVE;
if (hv == PL_last_swash_hv &&
klen == PL_last_swash_klen &&
- (!klen || memEQ(ptr,PL_last_swash_key,klen)) )
+ (!klen || memEQ((char *)ptr,(char *)PL_last_swash_key,klen)) )
{
tmps = PL_last_swash_tmps;
slen = PL_last_swash_slen;
PUSHMARK(SP);
EXTEND(SP,3);
PUSHs((SV*)sv);
- PUSHs(sv_2mortal(newSViv(utf8_to_uv(ptr, 0) & ~(needents - 1))));
+ PUSHs(sv_2mortal(newSViv(utf8_to_uv(ptr, UTF8_MAXLEN, 0, 0) & ~(needents - 1))));
PUSHs(sv_2mortal(newSViv(needents)));
PUTBACK;
if (call_method("SWASHGET", G_SCALAR))
- retval = newSVsv(*PL_stack_sp--);
+ retval = newSVsv(*PL_stack_sp--);
else
retval = &PL_sv_undef;
POPSTACK;
Copy(ptr, PL_last_swash_key, klen, U8);
}
- switch ((slen << 3) / needents) {
+ switch ((int)((slen << 3) / needents)) {
case 1:
bit = 1 << (off & 7);
off >>= 3;
https://perl5.git.perl.org / perl5.git / blobdiff