diff options
author | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
commit | 990bc3f015a4f8fce2eb918375defcd44980a845 (patch) | |
tree | 8e8301f19482b52cc00bd95b4593522cc93267af /libX11/src/xlibi18n/lcUniConv/utf8.h | |
parent | 1af6fc1b5d93e54d6674de8b5870448b29f139a7 (diff) | |
download | vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.tar.gz vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.tar.bz2 vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.zip |
Used synchronise script to update files
Diffstat (limited to 'libX11/src/xlibi18n/lcUniConv/utf8.h')
-rw-r--r-- | libX11/src/xlibi18n/lcUniConv/utf8.h | 218 |
1 files changed, 109 insertions, 109 deletions
diff --git a/libX11/src/xlibi18n/lcUniConv/utf8.h b/libX11/src/xlibi18n/lcUniConv/utf8.h index d00995ca0..ef0f7303f 100644 --- a/libX11/src/xlibi18n/lcUniConv/utf8.h +++ b/libX11/src/xlibi18n/lcUniConv/utf8.h @@ -1,109 +1,109 @@ - -/* - * UTF-8 - */ - -/* Specification: RFC 2279 */ - -static int -utf8_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) -{ - unsigned char c = s[0]; - - if (c < 0x80) { - *pwc = c; - return 1; - } else if (c < 0xc2) { - return RET_ILSEQ; - } else if (c < 0xe0) { - if (n < 2) - return RET_TOOFEW(0); - if (!((s[1] ^ 0x80) < 0x40)) - return RET_ILSEQ; - *pwc = ((ucs4_t) (c & 0x1f) << 6) - | (ucs4_t) (s[1] ^ 0x80); - return 2; - } else if (c < 0xf0) { - if (n < 3) - return RET_TOOFEW(0); - if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (c >= 0xe1 || s[1] >= 0xa0))) - return RET_ILSEQ; - *pwc = ((ucs4_t) (c & 0x0f) << 12) - | ((ucs4_t) (s[1] ^ 0x80) << 6) - | (ucs4_t) (s[2] ^ 0x80); - return 3; - } else if (c < 0xf8) { - if (n < 4) - return RET_TOOFEW(0); - if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 - && (c >= 0xf1 || s[1] >= 0x90))) - return RET_ILSEQ; - *pwc = ((ucs4_t) (c & 0x07) << 18) - | ((ucs4_t) (s[1] ^ 0x80) << 12) - | ((ucs4_t) (s[2] ^ 0x80) << 6) - | (ucs4_t) (s[3] ^ 0x80); - return 4; - } else if (c < 0xfc) { - if (n < 5) - return RET_TOOFEW(0); - if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 - && (c >= 0xf9 || s[1] >= 0x88))) - return RET_ILSEQ; - *pwc = ((ucs4_t) (c & 0x03) << 24) - | ((ucs4_t) (s[1] ^ 0x80) << 18) - | ((ucs4_t) (s[2] ^ 0x80) << 12) - | ((ucs4_t) (s[3] ^ 0x80) << 6) - | (ucs4_t) (s[4] ^ 0x80); - return 5; - } else if (c < 0xfe) { - if (n < 6) - return RET_TOOFEW(0); - if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40 - && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40 - && (s[5] ^ 0x80) < 0x40 - && (c >= 0xfd || s[1] >= 0x84))) - return RET_ILSEQ; - *pwc = ((ucs4_t) (c & 0x01) << 30) - | ((ucs4_t) (s[1] ^ 0x80) << 24) - | ((ucs4_t) (s[2] ^ 0x80) << 18) - | ((ucs4_t) (s[3] ^ 0x80) << 12) - | ((ucs4_t) (s[4] ^ 0x80) << 6) - | (ucs4_t) (s[5] ^ 0x80); - return 6; - } else - return RET_ILSEQ; -} - -static int -utf8_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) /* n == 0 is acceptable */ -{ - int count; - if (wc < 0x80) - count = 1; - else if (wc < 0x800) - count = 2; - else if (wc < 0x10000) - count = 3; - else if (wc < 0x200000) - count = 4; - else if (wc < 0x4000000) - count = 5; - else if (wc <= 0x7fffffff) - count = 6; - else - return RET_ILSEQ; - if (n < count) - return RET_TOOSMALL; - switch (count) { /* note: code falls through cases! */ - case 6: r[5] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x4000000; - case 5: r[4] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x200000; - case 4: r[3] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x10000; - case 3: r[2] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x800; - case 2: r[1] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0xc0; - case 1: r[0] = wc; - } - return count; -} +
+/*
+ * UTF-8
+ */
+
+/* Specification: RFC 2279 */
+
+static int
+utf8_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
+{
+ unsigned char c = s[0];
+
+ if (c < 0x80) {
+ *pwc = c;
+ return 1;
+ } else if (c < 0xc2) {
+ return RET_ILSEQ;
+ } else if (c < 0xe0) {
+ if (n < 2)
+ return RET_TOOFEW(0);
+ if (!((s[1] ^ 0x80) < 0x40))
+ return RET_ILSEQ;
+ *pwc = ((ucs4_t) (c & 0x1f) << 6)
+ | (ucs4_t) (s[1] ^ 0x80);
+ return 2;
+ } else if (c < 0xf0) {
+ if (n < 3)
+ return RET_TOOFEW(0);
+ if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40
+ && (c >= 0xe1 || s[1] >= 0xa0)))
+ return RET_ILSEQ;
+ *pwc = ((ucs4_t) (c & 0x0f) << 12)
+ | ((ucs4_t) (s[1] ^ 0x80) << 6)
+ | (ucs4_t) (s[2] ^ 0x80);
+ return 3;
+ } else if (c < 0xf8) {
+ if (n < 4)
+ return RET_TOOFEW(0);
+ if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40
+ && (s[3] ^ 0x80) < 0x40
+ && (c >= 0xf1 || s[1] >= 0x90)))
+ return RET_ILSEQ;
+ *pwc = ((ucs4_t) (c & 0x07) << 18)
+ | ((ucs4_t) (s[1] ^ 0x80) << 12)
+ | ((ucs4_t) (s[2] ^ 0x80) << 6)
+ | (ucs4_t) (s[3] ^ 0x80);
+ return 4;
+ } else if (c < 0xfc) {
+ if (n < 5)
+ return RET_TOOFEW(0);
+ if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40
+ && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40
+ && (c >= 0xf9 || s[1] >= 0x88)))
+ return RET_ILSEQ;
+ *pwc = ((ucs4_t) (c & 0x03) << 24)
+ | ((ucs4_t) (s[1] ^ 0x80) << 18)
+ | ((ucs4_t) (s[2] ^ 0x80) << 12)
+ | ((ucs4_t) (s[3] ^ 0x80) << 6)
+ | (ucs4_t) (s[4] ^ 0x80);
+ return 5;
+ } else if (c < 0xfe) {
+ if (n < 6)
+ return RET_TOOFEW(0);
+ if (!((s[1] ^ 0x80) < 0x40 && (s[2] ^ 0x80) < 0x40
+ && (s[3] ^ 0x80) < 0x40 && (s[4] ^ 0x80) < 0x40
+ && (s[5] ^ 0x80) < 0x40
+ && (c >= 0xfd || s[1] >= 0x84)))
+ return RET_ILSEQ;
+ *pwc = ((ucs4_t) (c & 0x01) << 30)
+ | ((ucs4_t) (s[1] ^ 0x80) << 24)
+ | ((ucs4_t) (s[2] ^ 0x80) << 18)
+ | ((ucs4_t) (s[3] ^ 0x80) << 12)
+ | ((ucs4_t) (s[4] ^ 0x80) << 6)
+ | (ucs4_t) (s[5] ^ 0x80);
+ return 6;
+ } else
+ return RET_ILSEQ;
+}
+
+static int
+utf8_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) /* n == 0 is acceptable */
+{
+ int count;
+ if (wc < 0x80)
+ count = 1;
+ else if (wc < 0x800)
+ count = 2;
+ else if (wc < 0x10000)
+ count = 3;
+ else if (wc < 0x200000)
+ count = 4;
+ else if (wc < 0x4000000)
+ count = 5;
+ else if (wc <= 0x7fffffff)
+ count = 6;
+ else
+ return RET_ILSEQ;
+ if (n < count)
+ return RET_TOOSMALL;
+ switch (count) { /* note: code falls through cases! */
+ case 6: r[5] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x4000000;
+ case 5: r[4] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x200000;
+ case 4: r[3] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x10000;
+ case 3: r[2] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x800;
+ case 2: r[1] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0xc0;
+ case 1: r[0] = wc;
+ }
+ return count;
+}
|