Mercurial > vim
diff src/charset.c @ 492:81c06952fb1d
updated for version 7.0135
| author | vimboss |
|---|---|
| date | Tue, 23 Aug 2005 21:00:13 +0000 |
| parents | a5fcf36ef512 |
| children | 73f10d8124f4 |
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--- a/src/charset.c +++ b/src/charset.c @@ -1531,6 +1531,122 @@ vim_isxdigit(c) || (c >= 'A' && c <= 'F'); } +#if defined(FEAT_MBYTE) || defined(PROTO) +/* + * Vim's own character class functions. These exist because many library + * islower()/toupper() etc. do not work properly: they crash when used with + * invalid values or can't handle latin1 when the locale is C. + * Speed is most important here. + */ +#define LATIN1LOWER 'l' +#define LATIN1UPPER 'U' + +/* !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]%_'abcdefghijklmnopqrstuvwxyz{|}~ */ +static char_u latin1flags[256] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; +static char_u latin1upper[256] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~"; +static char_u latin1lower[256] = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~"; + + int +vim_islower(c) + int c; +{ + if (c <= '@') + return FALSE; + if (c >= 0x80) + { + if (enc_utf8) + return utf_islower(c); + if (c >= 0x100) + { +#ifdef HAVE_ISWLOWER + if (has_mbyte) + return iswlower(c); +#endif + /* islower() can't handle these chars and may crash */ + return FALSE; + } + if (enc_latin1like) + return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; + } + return islower(c); +} + + int +vim_isupper(c) + int c; +{ + if (c <= '@') + return FALSE; + if (c >= 0x80) + { + if (enc_utf8) + return utf_isupper(c); + if (c >= 0x100) + { +#ifdef HAVE_ISWUPPER + if (has_mbyte) + return iswupper(c); +#endif + /* islower() can't handle these chars and may crash */ + return FALSE; + } + if (enc_latin1like) + return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; + } + return isupper(c); +} + + int +vim_toupper(c) + int c; +{ + if (c <= '@') + return c; + if (c >= 0x80) + { + if (enc_utf8) + return utf_toupper(c); + if (c >= 0x100) + { +#ifdef HAVE_TOWUPPER + if (has_mbyte) + return towupper(c); +#endif + /* toupper() can't handle these chars and may crash */ + return c; + } + if (enc_latin1like) + return latin1upper[c]; + } + return TOUPPER_LOC(c); +} + + int +vim_tolower(c) + int c; +{ + if (c <= '@') + return c; + if (c >= 0x80) + { + if (enc_utf8) + return utf_tolower(c); + if (c >= 0x100) + { +#ifdef HAVE_TOWLOWER + if (has_mbyte) + return towlower(c); +#endif + /* tolower() can't handle these chars and may crash */ + return c; + } + if (enc_latin1like) + return latin1lower[c]; + } + return TOLOWER_LOC(c); +} +#endif + /* * skiptowhite: skip over text until ' ' or '\t' or NUL. */