diff options
Diffstat (limited to 'comb.c')
| -rw-r--r-- | comb.c | 198 |
1 files changed, 0 insertions, 198 deletions
@@ -1,198 +0,0 @@ -/* uuterm, Copyright (C) 2006 Rich Felker; licensed under GNU GPL v2 only */ - -#define R(a,b) { (a), (b)-(a) } - -static const unsigned short common[][2] = { - R( 0x300, 0x341 ), - R( 0x346, 0x362 ), - R( 0x200B, 0x200F ), - R( 0x202A, 0x202E ), - R( 0x2060, 0x206F ), - R( 0x20D0, 0x20EA ), - { 0, 0 } -}; - -static const unsigned short latin[][2] = { - R( 0x363, 0x36F ), - { 0, 0 } -}; - -static const unsigned short greek[][2] = { - R( 0x342, 0x345 ), - { 0, 0 } -}; - -static const unsigned short cyrillic[][2] = { - R( 0x483, 0x489 ), - { 0, 0 } -}; - -static const unsigned short hebrew[][2] = { - R( 0x591, 0x5C4 ), - { 0, 0 } -}; - -static const unsigned short arabic[][2] = { - R( 0x600, 0x603 ), - R( 0x610, 0x615 ), - R( 0x64B, 0x658 ), - R( 0x670, 0x670 ), - R( 0x6D6, 0x6ED ), - { 0, 0 } -}; - -static const unsigned short syriac[][2] = { - R( 0x70F, 0x711 ), - R( 0x730, 0x74A ), - { 0, 0 } -}; - -static const unsigned short thaana[][2] = { - R( 0x7A6, 0x7B0 ), - { 0, 0 } -}; - -static const unsigned short devanagari[][2] = { - R( 0x901, 0x902 ), - R( 0x93C, 0x963 ), - { 0, 0 } -}; - -static const unsigned short bengali[][2] = { - R( 0x981, 0x981 ), - R( 0x9BC, 0x9E3 ), - { 0, 0 } -}; - -static const unsigned short gurmukhi[][2] = { - R( 0xA01, 0xA02 ), - R( 0xA3C, 0xA4D ), - R( 0xA70, 0xA71 ), - { 0, 0 } -}; - -static const unsigned short gujarati[][2] = { - R( 0xA81, 0xA82 ), - R( 0xABC, 0xAE3 ), - { 0, 0 } -}; - -static const unsigned short oriya[][2] = { - R( 0xB01, 0xB01 ), - R( 0xB3C, 0xB4D ), - R( 0xB56, 0xB56 ), - { 0, 0 } -}; - -static const unsigned short tamil[][2] = { - R( 0xB82, 0xB82 ), - R( 0xBC0, 0xBCD ), - { 0, 0 } -}; - -static const unsigned short telugu[][2] = { - R( 0xC3E, 0xC56 ), - { 0, 0 } -}; - -static const unsigned short kannada[][2] = { - R( 0xCBC, 0xCCD ), - { 0, 0 } -}; - -static const unsigned short malayalam[][2] = { - R( 0xD41, 0xD4D ), - { 0, 0 } -}; - -static const unsigned short sinhala[][2] = { - R( 0xDCA, 0xDD6 ), - { 0, 0 } -}; - -static const unsigned short thai[][2] = { - R( 0xE31, 0xE3A ), - R( 0xE47, 0xE4E ), - { 0, 0 } -}; - -static const unsigned short lao[][2] = { - R( 0xEB1, 0xECD ), - { 0, 0 } -}; - -static const unsigned short tibetan[][2] = { - R( 0xF18, 0xF19 ), - R( 0xF35, 0xF35 ), - R( 0xF39, 0xF39 ), - R( 0xF71, 0xF84 ), - R( 0xF90, 0xFBC ), - R( 0xFC6, 0xFC6 ), - { 0, 0 } -}; - -static const unsigned short burmese[][2] = { - R( 0x102D, 0x1039 ), - R( 0x1058, 0x1059 ), - { 0, 0 } -}; - -static const unsigned short misc_scripts[][2] = { - R( 0x1732, 0x1734 ), /* hanunoo */ - R( 0x1752, 0x1753 ), /* buhid */ - R( 0x17B4, 0x17BD ), /* khmer */ - R( 0x17C6, 0x17D3 ), - R( 0x17DD, 0x17DD ), - R( 0x18A9, 0x18A9 ), /* mongolian */ - R( 0x1920, 0x193B ), /* limbu (can be broken down more) */ - { 0, 0 } -}; - -#undef R -#define R(a,b,s) { (a), (b)-(a), (s) } - -static const struct { - unsigned a, l; - const unsigned short (*r)[2]; -} scripts[] = { - R( 0x400, 0x52F, cyrillic ), - R( 0x590, 0x5FF, hebrew ), - R( 0x600, 0x6FF, arabic ), - R( 0x700, 0x74F, syriac ), - R( 0x780, 0x7B1, thaana ), - R( 0x900, 0x97F, devanagari ), - R( 0x980, 0x9FF, bengali ), - R( 0xA00, 0xA7F, gurmukhi ), - R( 0xA80, 0xAFF, gujarati ), - R( 0xB00, 0xB7F, oriya ), - R( 0xB80, 0xBFF, tamil ), - R( 0xC00, 0xC7F, telugu ), - R( 0xC80, 0xCFF, kannada ), - R( 0xD00, 0xD7F, malayalam ), - R( 0xD80, 0xDFF, sinhala ), - R( 0xE00, 0xE7F, thai ), - R( 0xE80, 0xEFF, lao ), - R( 0xF00, 0xFFF, tibetan ), - R( 0x1000, 0x108F, burmese ), - R( 0x1720, 0x19FF, misc_scripts ), - R( 0x1D2B, 0x1D2B, cyrillic ), - R( 0x0000, 0x10FFFF, common ), - { } -}; - -#undef R - -int uu_combine_involution(unsigned b, unsigned c) -{ - int i; - unsigned code = 1; - const unsigned short (*r)[2]; - for (i=0; scripts[i].l; i++) - if (b - scripts[i].a <= scripts[i].l) - for (r = scripts[i].r; r[0][0]; code += r++[0][1]+1) - if (c - r[0][0] <= r[0][1]) - return c - r[0][0] + code; - else if (c - code <= r[0][1]) - return c + r[0][0] - code; - return 0; -} |