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author | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
commit | 990bc3f015a4f8fce2eb918375defcd44980a845 (patch) | |
tree | 8e8301f19482b52cc00bd95b4593522cc93267af /libX11/src/xlibi18n/lcUniConv/big5_emacs.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/big5_emacs.h')
-rw-r--r-- | libX11/src/xlibi18n/lcUniConv/big5_emacs.h | 326 |
1 files changed, 163 insertions, 163 deletions
diff --git a/libX11/src/xlibi18n/lcUniConv/big5_emacs.h b/libX11/src/xlibi18n/lcUniConv/big5_emacs.h index 246aebeb4..67fb20097 100644 --- a/libX11/src/xlibi18n/lcUniConv/big5_emacs.h +++ b/libX11/src/xlibi18n/lcUniConv/big5_emacs.h @@ -1,163 +1,163 @@ - -/* - * BIG5-0 and BIG5-1 - */ - -/* - BIG5 with its 13494 characters doesn't fit in a single 94x94 or 96x96 - block. Therefore Emacs/Mule developers, in a typically Japanese way of - thinking, have developed an alternative encoding of BIG5 in two 94x94 - planes, very similar to the SHIFT_JIS encoding for JISX0208. - - Conversion between BIG5 codes (s1,s2) and BIG5-0 codes (c1,c2): - Example. (s1,s2) = 0xA140, (c1,c2) = 0x2121. - 0xA1 <= s1 <= 0xC7, 0x40 <= s2 <= 0x7E || 0xA1 <= s2 <= 0xFE, - 0x21 <= c1 <= 0x62, 0x21 <= c2 <= 0x7E. - Invariant: - 157*(s1-0xA1) + (s2 < 0x80 ? s2-0x40 : s2-0x62) - = 94*(c1-0x21)+(c2-0x21) - Conversion (s1,s2) -> (c1,c2): - t := 157*(s1-0xA1) + (s2 < 0x80 ? s2-0x40 : s2-0x62) - c1 := (t div 94) + 0x21 - c2 := (t mod 94) + 0x21 - Conversion (c1,c2) -> (s1,s2): - t := 94*(c1-0x21)+(c2-0x21) - t2 := t mod 157 - s1 := (t div 157) + 0xA1 - s2 := (t2 < 0x3F ? t2+0x40 : t2+0x62) - - Conversion between BIG5 codes (s1,s2) and BIG5-1 codes (c1,c2): - Example. (s1,s2) = 0xC940, (c1,c2) = 0x2121. - 0xC9 <= s1 <= 0xF9, 0x40 <= s2 <= 0x7E || 0xA1 <= s2 <= 0xFE, - 0x21 <= c1 <= 0x72, 0x21 <= c2 <= 0x7E. - Invariant: - 157*(s1-0xC9) + (s2 < 0x80 ? s2-0x40 : s2-0x62) - = 94*(c1-0x21)+(c2-0x21) - Conversion (s1,s2) -> (c1,c2): - t := 157*(s1-0xC9) + (s2 < 0x80 ? s2-0x40 : s2-0x62) - c1 := (t div 94) + 0x21 - c2 := (t mod 94) + 0x21 - Conversion (c1,c2) -> (s1,s2): - t := 94*(c1-0x21)+(c2-0x21) - t2 := t mod 157 - s1 := (t div 157) + 0xC9 - s2 := (t2 < 0x3F ? t2+0x40 : t2+0x62) - */ - -static int -big5_0_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) -{ - unsigned char c1 = s[0]; - if (c1 >= 0x21 && c1 <= 0x62) { - if (n >= 2) { - unsigned char c2 = s[1]; - if (c2 >= 0x21 && c2 <= 0x7e) { - unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21); - if (0) { - /* Unoptimized. */ - unsigned char buf[2]; - buf[0] = (i / 157) + 0xa1; - i = i % 157; - buf[1] = i + (i < 0x3f ? 0x40 : 0x62); - return big5_mbtowc(conv,pwc,buf,2); - } else { - /* Inline the implementation of big5_mbtowc. */ - if (i < 6121) { - unsigned short wc = big5_2uni_pagea1[i]; - if (wc != 0xfffd) { - *pwc = (ucs4_t) wc; - return 2; - } - } - } - } - return RET_ILSEQ; - } - return RET_TOOFEW(0); - } - return RET_ILSEQ; -} - -static int -big5_1_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) -{ - unsigned char c1 = s[0]; - if (c1 >= 0x21 && c1 <= 0x72) { - if (n >= 2) { - unsigned char c2 = s[1]; - if (c2 >= 0x21 && c2 <= 0x7e) { - unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21); - if (0) { - /* Unoptimized. */ - unsigned char buf[2]; - buf[0] = (i / 157) + 0xc9; - i = i % 157; - buf[1] = i + (i < 0x3f ? 0x40 : 0x62); - return big5_mbtowc(conv,pwc,buf,2); - } else { - /* Inline the implementation of big5_mbtowc. */ - if (i < 7652) { - unsigned short wc = big5_2uni_pagec9[i]; - if (wc != 0xfffd) { - *pwc = (ucs4_t) wc; - return 2; - } - } - } - } - return RET_ILSEQ; - } - return RET_TOOFEW(0); - } - return RET_ILSEQ; -} - -static int -big5_0_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) -{ - if (n >= 2) { - unsigned char buf[2]; - int ret = big5_wctomb(conv,buf,wc,2); - if (ret != RET_ILSEQ) { - unsigned char s1, s2; - if (ret != 2) abort(); - s1 = buf[0]; - s2 = buf[1]; - if (!(s1 >= 0xa1)) abort(); - if (!((s2 >= 0x40 && s2 <= 0x7e) || (s2 >= 0xa1 && s2 <= 0xfe))) abort(); - if (s1 < 0xc9) { - unsigned int t = 157 * (s1 - 0xa1) + s2 - (s2 < 0x80 ? 0x40 : 0x62); - r[0] = (t / 94) + 0x21; - r[1] = (t % 94) + 0x21; - return 2; - } - } - return RET_ILSEQ; - } - return RET_TOOSMALL; -} - -static int -big5_1_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) -{ - if (n >= 2) { - unsigned char buf[2]; - int ret = big5_wctomb(conv,buf,wc,2); - if (ret != RET_ILSEQ) { - unsigned char s1, s2; - if (ret != 2) abort(); - s1 = buf[0]; - s2 = buf[1]; - if (!(s1 <= 0xf9)) abort(); - if (!((s2 >= 0x40 && s2 <= 0x7e) || (s2 >= 0xa1 && s2 <= 0xfe))) abort(); - if (s1 >= 0xc9) { - unsigned int t = 157 * (s1 - 0xc9) + s2 - (s2 < 0x80 ? 0x40 : 0x62); - r[0] = (t / 94) + 0x21; - r[1] = (t % 94) + 0x21; - return 2; - } - } - return RET_ILSEQ; - } - return RET_TOOSMALL; -} +
+/*
+ * BIG5-0 and BIG5-1
+ */
+
+/*
+ BIG5 with its 13494 characters doesn't fit in a single 94x94 or 96x96
+ block. Therefore Emacs/Mule developers, in a typically Japanese way of
+ thinking, have developed an alternative encoding of BIG5 in two 94x94
+ planes, very similar to the SHIFT_JIS encoding for JISX0208.
+
+ Conversion between BIG5 codes (s1,s2) and BIG5-0 codes (c1,c2):
+ Example. (s1,s2) = 0xA140, (c1,c2) = 0x2121.
+ 0xA1 <= s1 <= 0xC7, 0x40 <= s2 <= 0x7E || 0xA1 <= s2 <= 0xFE,
+ 0x21 <= c1 <= 0x62, 0x21 <= c2 <= 0x7E.
+ Invariant:
+ 157*(s1-0xA1) + (s2 < 0x80 ? s2-0x40 : s2-0x62)
+ = 94*(c1-0x21)+(c2-0x21)
+ Conversion (s1,s2) -> (c1,c2):
+ t := 157*(s1-0xA1) + (s2 < 0x80 ? s2-0x40 : s2-0x62)
+ c1 := (t div 94) + 0x21
+ c2 := (t mod 94) + 0x21
+ Conversion (c1,c2) -> (s1,s2):
+ t := 94*(c1-0x21)+(c2-0x21)
+ t2 := t mod 157
+ s1 := (t div 157) + 0xA1
+ s2 := (t2 < 0x3F ? t2+0x40 : t2+0x62)
+
+ Conversion between BIG5 codes (s1,s2) and BIG5-1 codes (c1,c2):
+ Example. (s1,s2) = 0xC940, (c1,c2) = 0x2121.
+ 0xC9 <= s1 <= 0xF9, 0x40 <= s2 <= 0x7E || 0xA1 <= s2 <= 0xFE,
+ 0x21 <= c1 <= 0x72, 0x21 <= c2 <= 0x7E.
+ Invariant:
+ 157*(s1-0xC9) + (s2 < 0x80 ? s2-0x40 : s2-0x62)
+ = 94*(c1-0x21)+(c2-0x21)
+ Conversion (s1,s2) -> (c1,c2):
+ t := 157*(s1-0xC9) + (s2 < 0x80 ? s2-0x40 : s2-0x62)
+ c1 := (t div 94) + 0x21
+ c2 := (t mod 94) + 0x21
+ Conversion (c1,c2) -> (s1,s2):
+ t := 94*(c1-0x21)+(c2-0x21)
+ t2 := t mod 157
+ s1 := (t div 157) + 0xC9
+ s2 := (t2 < 0x3F ? t2+0x40 : t2+0x62)
+ */
+
+static int
+big5_0_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
+{
+ unsigned char c1 = s[0];
+ if (c1 >= 0x21 && c1 <= 0x62) {
+ if (n >= 2) {
+ unsigned char c2 = s[1];
+ if (c2 >= 0x21 && c2 <= 0x7e) {
+ unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21);
+ if (0) {
+ /* Unoptimized. */
+ unsigned char buf[2];
+ buf[0] = (i / 157) + 0xa1;
+ i = i % 157;
+ buf[1] = i + (i < 0x3f ? 0x40 : 0x62);
+ return big5_mbtowc(conv,pwc,buf,2);
+ } else {
+ /* Inline the implementation of big5_mbtowc. */
+ if (i < 6121) {
+ unsigned short wc = big5_2uni_pagea1[i];
+ if (wc != 0xfffd) {
+ *pwc = (ucs4_t) wc;
+ return 2;
+ }
+ }
+ }
+ }
+ return RET_ILSEQ;
+ }
+ return RET_TOOFEW(0);
+ }
+ return RET_ILSEQ;
+}
+
+static int
+big5_1_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
+{
+ unsigned char c1 = s[0];
+ if (c1 >= 0x21 && c1 <= 0x72) {
+ if (n >= 2) {
+ unsigned char c2 = s[1];
+ if (c2 >= 0x21 && c2 <= 0x7e) {
+ unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21);
+ if (0) {
+ /* Unoptimized. */
+ unsigned char buf[2];
+ buf[0] = (i / 157) + 0xc9;
+ i = i % 157;
+ buf[1] = i + (i < 0x3f ? 0x40 : 0x62);
+ return big5_mbtowc(conv,pwc,buf,2);
+ } else {
+ /* Inline the implementation of big5_mbtowc. */
+ if (i < 7652) {
+ unsigned short wc = big5_2uni_pagec9[i];
+ if (wc != 0xfffd) {
+ *pwc = (ucs4_t) wc;
+ return 2;
+ }
+ }
+ }
+ }
+ return RET_ILSEQ;
+ }
+ return RET_TOOFEW(0);
+ }
+ return RET_ILSEQ;
+}
+
+static int
+big5_0_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
+{
+ if (n >= 2) {
+ unsigned char buf[2];
+ int ret = big5_wctomb(conv,buf,wc,2);
+ if (ret != RET_ILSEQ) {
+ unsigned char s1, s2;
+ if (ret != 2) abort();
+ s1 = buf[0];
+ s2 = buf[1];
+ if (!(s1 >= 0xa1)) abort();
+ if (!((s2 >= 0x40 && s2 <= 0x7e) || (s2 >= 0xa1 && s2 <= 0xfe))) abort();
+ if (s1 < 0xc9) {
+ unsigned int t = 157 * (s1 - 0xa1) + s2 - (s2 < 0x80 ? 0x40 : 0x62);
+ r[0] = (t / 94) + 0x21;
+ r[1] = (t % 94) + 0x21;
+ return 2;
+ }
+ }
+ return RET_ILSEQ;
+ }
+ return RET_TOOSMALL;
+}
+
+static int
+big5_1_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
+{
+ if (n >= 2) {
+ unsigned char buf[2];
+ int ret = big5_wctomb(conv,buf,wc,2);
+ if (ret != RET_ILSEQ) {
+ unsigned char s1, s2;
+ if (ret != 2) abort();
+ s1 = buf[0];
+ s2 = buf[1];
+ if (!(s1 <= 0xf9)) abort();
+ if (!((s2 >= 0x40 && s2 <= 0x7e) || (s2 >= 0xa1 && s2 <= 0xfe))) abort();
+ if (s1 >= 0xc9) {
+ unsigned int t = 157 * (s1 - 0xc9) + s2 - (s2 < 0x80 ? 0x40 : 0x62);
+ r[0] = (t / 94) + 0x21;
+ r[1] = (t % 94) + 0x21;
+ return 2;
+ }
+ }
+ return RET_ILSEQ;
+ }
+ return RET_TOOSMALL;
+}
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