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regenerate all wcwidth code from UCD 6.0.0 and related tables,

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and mgk25’s wcwidth.c 5.0 code; add check against 2-byte wchar_t;
optimise libc wcwidth(3) implementation taken from mksh and sync these
This commit is contained in:
tg 2010-12-11 16:05:03 +00:00
parent beba20ea56
commit 210608b199
1 changed files with 13 additions and 12 deletions
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25
expr.c
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@ -22,7 +22,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.46 2010/11/01 17:28:49 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.47 2010/12/11 16:05:03 tg Exp $");
/* The order of these enums is constrained by the order of opinfo[] */
enum token {
@ -810,7 +810,7 @@ utf_wctomb(char *dst, unsigned int wc)
* disclaims all warranties with regard to this software.
*/
__RCSID("$miros: src/lib/libc/i18n/wcwidth.c,v 1.8 2008/09/20 12:01:18 tg Exp $");
__RCSID("$miros: src/lib/libc/i18n/wcwidth.c,v 1.10 2010/12/11 16:05:03 tg Exp $");
int
utf_wcwidth(unsigned int c)
@ -889,7 +889,7 @@ utf_wcwidth(unsigned int c)
size_t min = 0, mid, max = NELEM(comb) - 1;
/* test for 8-bit control characters */
if (c < 32 || (c >= 0x7f && c < 0xa0))
if (c < 32 || (c >= 0x7F && c < 0xA0))
return (c ? -1 : 0);
/* binary search in table of non-spacing characters */
@ -905,16 +905,17 @@ utf_wcwidth(unsigned int c)
}
/* if we arrive here, c is not a combining or C0/C1 control char */
return ((c >= 0x1100 && (
c <= 0x115f || /* Hangul Jamo init. consonants */
c == 0x2329 || c == 0x232a ||
(c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) || /* CJK ... Yi */
(c >= 0xac00 && c <= 0xd7a3) || /* Hangul Syllables */
(c >= 0xf900 && c <= 0xfaff) || /* CJK Compatibility Ideographs */
(c >= 0xfe10 && c <= 0xfe19) || /* Vertical forms */
(c >= 0xfe30 && c <= 0xfe6f) || /* CJK Compatibility Forms */
(c >= 0xff00 && c <= 0xff60) || /* Fullwidth Forms */
(c >= 0xffe0 && c <= 0xffe6))) ? 2 : 1);
c <= 0x115F || /* Hangul Jamo init. consonants */
c == 0x2329 || c == 0x232A ||
(c >= 0x2E80 && c <= 0xA4CF && c != 0x303F) || /* CJK ... Yi */
(c >= 0xAC00 && c <= 0xD7A3) || /* Hangul Syllables */
(c >= 0xF900 && c <= 0xFAFF) || /* CJK Compatibility Ideographs */
(c >= 0xFE10 && c <= 0xFE19) || /* Vertical forms */
(c >= 0xFE30 && c <= 0xFE6F) || /* CJK Compatibility Forms */
(c >= 0xFF00 && c <= 0xFF60) || /* Fullwidth Forms */
(c >= 0xFFE0 && c <= 0xFFE6))) ? 2 : 1);
}
/* --- end of wcwidth.c excerpt --- */
#endif