diff options
Diffstat (limited to 'src/keysym-utf.c')
| -rw-r--r-- | src/keysym-utf.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/keysym-utf.c b/src/keysym-utf.c index 61e0a06..a49944a 100644 --- a/src/keysym-utf.c +++ b/src/keysym-utf.c @@ -897,6 +897,35 @@ xkb_keysym_to_utf32(xkb_keysym_t keysym) return bin_search(keysymtab, ARRAY_SIZE(keysymtab) - 1, keysym); } +XKB_EXPORT xkb_keysym_t +xkb_utf32_to_keysym(uint32_t ucs) +{ + /* first check for Latin-1 characters (1:1 mapping) */ + if ((ucs >= 0x0020 && ucs <= 0x007e) || + (ucs >= 0x00a0 && ucs <= 0x00ff)) + return ucs; + + /* special keysyms */ + if ((ucs >= (XKB_KEY_BackSpace & 0x7f) && ucs <= (XKB_KEY_Clear & 0x7f)) || + ucs == (XKB_KEY_Return & 0x7f) || ucs == (XKB_KEY_Escape & 0x7f)) + return ucs | 0xff00; + if (ucs == (XKB_KEY_Delete & 0x7f)) + return XKB_KEY_Delete; + + /* Unicode non-symbols and code points outside Unicode planes */ + if ((ucs >= 0xfdd0 && ucs <= 0xfdef) || + ucs > 0x10ffff || (ucs & 0xfffe) == 0xfffe) + return XKB_KEY_NoSymbol; + + /* search main table */ + for (size_t i = 0; i < ARRAY_SIZE(keysymtab); i++) + if (keysymtab[i].ucs == ucs) + return keysymtab[i].keysym; + + /* Use direct encoding if everything else fails */ + return ucs | 0x01000000; +} + /* * Copyright © 2012 Intel Corporation * |