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better wording in Config

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-01-31 18:12:57 +01:00
parent b1edf20f18
commit 460f827644
2 changed files with 11 additions and 3 deletions
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12
Config.in
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@ -161,9 +161,11 @@ config LAST_SUPPORTED_WCHAR
The idea is that many valid printable Unicode chars are
nevertheless are not displayed correctly. Think about
combining charachers, double-wide hieroglyphs and such.
Many terminals, xterms and such will fail to handle them
correctly.
combining charachers, double-wide hieroglyphs, obscure
characters in dozens of ancient scripts...
Many terminals, terminal emulators, xterms etc will fail
to handle them correctly. Choose the smallest value
which suits your needs.
Typical values are:
126 - ASCII only
@ -172,6 +174,10 @@ config LAST_SUPPORTED_WCHAR
code is ~700 bytes smaller for this case.
4351 (0x10ff) - there are no double-wide chars in [0..4351] range,
code is ~300 bytes smaller for this case.
12799 (0x31ff) - nearly all non-ideographic characters are
available in [0..12799] range, including
East Asian scripts like katakana, hiragana, hangul,
bopomofo...
0 - off, any valid printable Unicode character will be printed.
config UNICODE_COMBINING_WCHARS

2
libbb/unicode_wcwidth.c
View File

@ -534,6 +534,7 @@ static int wcwidth(unsigned ucs)
|| ucs == 0x2329 /* left-pointing angle bracket; also CJK punct. char */
|| ucs == 0x232a /* right-pointing angle bracket; also CJK punct. char */
|| (ucs >= 0x2e80 && ucs <= 0xa4cf && ucs != 0x303f) /* CJK ... Yi */
# if LAST_SUPPORTED_WCHAR >= 0xac00
|| (ucs >= 0xac00 && ucs <= 0xd7a3) /* Hangul Syllables */
|| (ucs >= 0xf900 && ucs <= 0xfaff) /* CJK Compatibility Ideographs */
|| (ucs >= 0xfe10 && ucs <= 0xfe19) /* Vertical forms */
@ -541,6 +542,7 @@ static int wcwidth(unsigned ucs)
|| (ucs >= 0xff00 && ucs <= 0xff60) /* Fullwidth Forms */
|| (ucs >= 0xffe0 && ucs <= 0xffe6)
|| ((ucs >> 17) == (2 >> 1)) /* 20000..3ffff: Supplementary and Tertiary Ideographic Planes */
# endif
);
# endif
#endif