460f82764
Denys Vlasenko
2010-01-31
Subject
better wording in Config
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Config.in+9 -3
| @@ -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 | |
libbb/unicode_wcwidth.c+2 -0
| @@ -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 | |