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unicode: code shrink in character width determination

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function                                             old     new   delta
bb_wcwidth                                           267     238     -29

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2019-07-23 11:26:54 +02:00
parent 4767a5375e
commit dac0a7d234
1 changed files with 6 additions and 0 deletions
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6
libbb/unicode.c
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@ -674,14 +674,20 @@ int FAST_FUNC wcwidth(unsigned ucs)
( (/*ucs >= 0x1100 &&*/ ucs <= 0x115f) /* Hangul Jamo init. consonants */
|| ucs == 0x2329 /* left-pointing angle bracket; also CJK punct. char */
|| ucs == 0x232a /* right-pointing angle bracket; also CJK punct. char */
# if CONFIG_LAST_SUPPORTED_WCHAR >= 0x2e80
|| (ucs >= 0x2e80 && ucs <= 0xa4cf && ucs != 0x303f) /* CJK ... Yi */
# endif
# if CONFIG_LAST_SUPPORTED_WCHAR >= 0xac00
|| (ucs >= 0xac00 && ucs <= 0xd7a3) /* Hangul Syllables */
# endif
# if CONFIG_LAST_SUPPORTED_WCHAR >= 0xf900
|| (ucs >= 0xf900 && ucs <= 0xfaff) /* CJK Compatibility Ideographs */
|| (ucs >= 0xfe10 && ucs <= 0xfe19) /* Vertical forms */
|| (ucs >= 0xfe30 && ucs <= 0xfe6f) /* CJK Compatibility Forms */
|| (ucs >= 0xff00 && ucs <= 0xff60) /* Fullwidth Forms */
|| (ucs >= 0xffe0 && ucs <= 0xffe6)
# endif
# if CONFIG_LAST_SUPPORTED_WCHAR >= 0x20000
|| ((ucs >> 17) == (2 >> 1)) /* 20000..3ffff: Supplementary and Tertiary Ideographic Planes */
# endif
);