Mercurial > projects > ldc
diff dmd/unialpha.c @ 1:c53b6e3fe49a trunk
[svn r5] Initial commit. Most things are very rough.
author | lindquist |
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date | Sat, 01 Sep 2007 21:43:27 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dmd/unialpha.c Sat Sep 01 21:43:27 2007 +0200 @@ -0,0 +1,323 @@ + +// Copyright (c) 2003 by Digital Mars +// All Rights Reserved +// written by Walter Bright +// http://www.digitalmars.com +// License for redistribution is by either the Artistic License +// in artistic.txt, or the GNU General Public License in gnu.txt. +// See the included readme.txt for details. + +#include <assert.h> + +/******************************* + * Return !=0 if unicode alpha. + * Use table from C99 Appendix D. + */ + +int isUniAlpha(unsigned u) +{ + static unsigned short table[][2] = + { + { 0x00AA, 0x00AA }, + { 0x00B5, 0x00B5 }, + { 0x00B7, 0x00B7 }, + { 0x00BA, 0x00BA }, + { 0x00C0, 0x00D6 }, + { 0x00D8, 0x00F6 }, + { 0x00F8, 0x01F5 }, + { 0x01FA, 0x0217 }, + { 0x0250, 0x02A8 }, + { 0x02B0, 0x02B8 }, + { 0x02BB, 0x02BB }, + { 0x02BD, 0x02C1 }, + { 0x02D0, 0x02D1 }, + { 0x02E0, 0x02E4 }, + { 0x037A, 0x037A }, + { 0x0386, 0x0386 }, + { 0x0388, 0x038A }, + { 0x038C, 0x038C }, + { 0x038E, 0x03A1 }, + { 0x03A3, 0x03CE }, + { 0x03D0, 0x03D6 }, + { 0x03DA, 0x03DA }, + { 0x03DC, 0x03DC }, + { 0x03DE, 0x03DE }, + { 0x03E0, 0x03E0 }, + { 0x03E2, 0x03F3 }, + { 0x0401, 0x040C }, + { 0x040E, 0x044F }, + { 0x0451, 0x045C }, + { 0x045E, 0x0481 }, + { 0x0490, 0x04C4 }, + { 0x04C7, 0x04C8 }, + { 0x04CB, 0x04CC }, + { 0x04D0, 0x04EB }, + { 0x04EE, 0x04F5 }, + { 0x04F8, 0x04F9 }, + { 0x0531, 0x0556 }, + { 0x0559, 0x0559 }, + { 0x0561, 0x0587 }, + { 0x05B0, 0x05B9 }, + { 0x05BB, 0x05BD }, + { 0x05BF, 0x05BF }, + { 0x05C1, 0x05C2 }, + { 0x05D0, 0x05EA }, + { 0x05F0, 0x05F2 }, + { 0x0621, 0x063A }, + { 0x0640, 0x0652 }, + { 0x0660, 0x0669 }, + { 0x0670, 0x06B7 }, + { 0x06BA, 0x06BE }, + { 0x06C0, 0x06CE }, + { 0x06D0, 0x06DC }, + { 0x06E5, 0x06E8 }, + { 0x06EA, 0x06ED }, + { 0x06F0, 0x06F9 }, + { 0x0901, 0x0903 }, + { 0x0905, 0x0939 }, + { 0x093D, 0x093D }, + { 0x093E, 0x094D }, + { 0x0950, 0x0952 }, + { 0x0958, 0x0963 }, + { 0x0966, 0x096F }, + { 0x0981, 0x0983 }, + { 0x0985, 0x098C }, + { 0x098F, 0x0990 }, + { 0x0993, 0x09A8 }, + { 0x09AA, 0x09B0 }, + { 0x09B2, 0x09B2 }, + { 0x09B6, 0x09B9 }, + { 0x09BE, 0x09C4 }, + { 0x09C7, 0x09C8 }, + { 0x09CB, 0x09CD }, + { 0x09DC, 0x09DD }, + { 0x09DF, 0x09E3 }, + { 0x09E6, 0x09EF }, + { 0x09F0, 0x09F1 }, + { 0x0A02, 0x0A02 }, + { 0x0A05, 0x0A0A }, + { 0x0A0F, 0x0A10 }, + { 0x0A13, 0x0A28 }, + { 0x0A2A, 0x0A30 }, + { 0x0A32, 0x0A33 }, + { 0x0A35, 0x0A36 }, + { 0x0A38, 0x0A39 }, + { 0x0A3E, 0x0A42 }, + { 0x0A47, 0x0A48 }, + { 0x0A4B, 0x0A4D }, + { 0x0A59, 0x0A5C }, + { 0x0A5E, 0x0A5E }, + { 0x0A66, 0x0A6F }, + { 0x0A74, 0x0A74 }, + { 0x0A81, 0x0A83 }, + { 0x0A85, 0x0A8B }, + { 0x0A8D, 0x0A8D }, + { 0x0A8F, 0x0A91 }, + { 0x0A93, 0x0AA8 }, + { 0x0AAA, 0x0AB0 }, + { 0x0AB2, 0x0AB3 }, + { 0x0AB5, 0x0AB9 }, + { 0x0ABD, 0x0AC5 }, + { 0x0AC7, 0x0AC9 }, + { 0x0ACB, 0x0ACD }, + { 0x0AD0, 0x0AD0 }, + { 0x0AE0, 0x0AE0 }, + { 0x0AE6, 0x0AEF }, + { 0x0B01, 0x0B03 }, + { 0x0B05, 0x0B0C }, + { 0x0B0F, 0x0B10 }, + { 0x0B13, 0x0B28 }, + { 0x0B2A, 0x0B30 }, + { 0x0B32, 0x0B33 }, + { 0x0B36, 0x0B39 }, + { 0x0B3D, 0x0B3D }, + { 0x0B3E, 0x0B43 }, + { 0x0B47, 0x0B48 }, + { 0x0B4B, 0x0B4D }, + { 0x0B5C, 0x0B5D }, + { 0x0B5F, 0x0B61 }, + { 0x0B66, 0x0B6F }, + { 0x0B82, 0x0B83 }, + { 0x0B85, 0x0B8A }, + { 0x0B8E, 0x0B90 }, + { 0x0B92, 0x0B95 }, + { 0x0B99, 0x0B9A }, + { 0x0B9C, 0x0B9C }, + { 0x0B9E, 0x0B9F }, + { 0x0BA3, 0x0BA4 }, + { 0x0BA8, 0x0BAA }, + { 0x0BAE, 0x0BB5 }, + { 0x0BB7, 0x0BB9 }, + { 0x0BBE, 0x0BC2 }, + { 0x0BC6, 0x0BC8 }, + { 0x0BCA, 0x0BCD }, + { 0x0BE7, 0x0BEF }, + { 0x0C01, 0x0C03 }, + { 0x0C05, 0x0C0C }, + { 0x0C0E, 0x0C10 }, + { 0x0C12, 0x0C28 }, + { 0x0C2A, 0x0C33 }, + { 0x0C35, 0x0C39 }, + { 0x0C3E, 0x0C44 }, + { 0x0C46, 0x0C48 }, + { 0x0C4A, 0x0C4D }, + { 0x0C60, 0x0C61 }, + { 0x0C66, 0x0C6F }, + { 0x0C82, 0x0C83 }, + { 0x0C85, 0x0C8C }, + { 0x0C8E, 0x0C90 }, + { 0x0C92, 0x0CA8 }, + { 0x0CAA, 0x0CB3 }, + { 0x0CB5, 0x0CB9 }, + { 0x0CBE, 0x0CC4 }, + { 0x0CC6, 0x0CC8 }, + { 0x0CCA, 0x0CCD }, + { 0x0CDE, 0x0CDE }, + { 0x0CE0, 0x0CE1 }, + { 0x0CE6, 0x0CEF }, + { 0x0D02, 0x0D03 }, + { 0x0D05, 0x0D0C }, + { 0x0D0E, 0x0D10 }, + { 0x0D12, 0x0D28 }, + { 0x0D2A, 0x0D39 }, + { 0x0D3E, 0x0D43 }, + { 0x0D46, 0x0D48 }, + { 0x0D4A, 0x0D4D }, + { 0x0D60, 0x0D61 }, + { 0x0D66, 0x0D6F }, + { 0x0E01, 0x0E3A }, + { 0x0E40, 0x0E5B }, +// { 0x0E50, 0x0E59 }, + { 0x0E81, 0x0E82 }, + { 0x0E84, 0x0E84 }, + { 0x0E87, 0x0E88 }, + { 0x0E8A, 0x0E8A }, + { 0x0E8D, 0x0E8D }, + { 0x0E94, 0x0E97 }, + { 0x0E99, 0x0E9F }, + { 0x0EA1, 0x0EA3 }, + { 0x0EA5, 0x0EA5 }, + { 0x0EA7, 0x0EA7 }, + { 0x0EAA, 0x0EAB }, + { 0x0EAD, 0x0EAE }, + { 0x0EB0, 0x0EB9 }, + { 0x0EBB, 0x0EBD }, + { 0x0EC0, 0x0EC4 }, + { 0x0EC6, 0x0EC6 }, + { 0x0EC8, 0x0ECD }, + { 0x0ED0, 0x0ED9 }, + { 0x0EDC, 0x0EDD }, + { 0x0F00, 0x0F00 }, + { 0x0F18, 0x0F19 }, + { 0x0F20, 0x0F33 }, + { 0x0F35, 0x0F35 }, + { 0x0F37, 0x0F37 }, + { 0x0F39, 0x0F39 }, + { 0x0F3E, 0x0F47 }, + { 0x0F49, 0x0F69 }, + { 0x0F71, 0x0F84 }, + { 0x0F86, 0x0F8B }, + { 0x0F90, 0x0F95 }, + { 0x0F97, 0x0F97 }, + { 0x0F99, 0x0FAD }, + { 0x0FB1, 0x0FB7 }, + { 0x0FB9, 0x0FB9 }, + { 0x10A0, 0x10C5 }, + { 0x10D0, 0x10F6 }, + { 0x1E00, 0x1E9B }, + { 0x1EA0, 0x1EF9 }, + { 0x1F00, 0x1F15 }, + { 0x1F18, 0x1F1D }, + { 0x1F20, 0x1F45 }, + { 0x1F48, 0x1F4D }, + { 0x1F50, 0x1F57 }, + { 0x1F59, 0x1F59 }, + { 0x1F5B, 0x1F5B }, + { 0x1F5D, 0x1F5D }, + { 0x1F5F, 0x1F7D }, + { 0x1F80, 0x1FB4 }, + { 0x1FB6, 0x1FBC }, + { 0x1FBE, 0x1FBE }, + { 0x1FC2, 0x1FC4 }, + { 0x1FC6, 0x1FCC }, + { 0x1FD0, 0x1FD3 }, + { 0x1FD6, 0x1FDB }, + { 0x1FE0, 0x1FEC }, + { 0x1FF2, 0x1FF4 }, + { 0x1FF6, 0x1FFC }, + { 0x203F, 0x2040 }, + { 0x207F, 0x207F }, + { 0x2102, 0x2102 }, + { 0x2107, 0x2107 }, + { 0x210A, 0x2113 }, + { 0x2115, 0x2115 }, + { 0x2118, 0x211D }, + { 0x2124, 0x2124 }, + { 0x2126, 0x2126 }, + { 0x2128, 0x2128 }, + { 0x212A, 0x2131 }, + { 0x2133, 0x2138 }, + { 0x2160, 0x2182 }, + { 0x3005, 0x3007 }, + { 0x3021, 0x3029 }, + { 0x3041, 0x3093 }, + { 0x309B, 0x309C }, + { 0x30A1, 0x30F6 }, + { 0x30FB, 0x30FC }, + { 0x3105, 0x312C }, + { 0x4E00, 0x9FA5 }, + { 0xAC00, 0xD7A3 }, + }; + +#ifdef DEBUG + for (int i = 0; i < sizeof(table) / sizeof(table[0]); i++) + { + //printf("%x\n", table[i][0]); + assert(table[i][0] <= table[i][1]); + if (i < sizeof(table) / sizeof(table[0]) - 1) + assert(table[i][1] < table[i + 1][0]); + } +#endif + + if (u > 0xD7A3) + goto Lisnot; + + // Binary search + int mid; + int low; + int high; + + low = 0; + high = sizeof(table) / sizeof(table[0]) - 1; + while (low <= high) + { + mid = (low + high) >> 1; + if (u < table[mid][0]) + high = mid - 1; + else if (u > table[mid][1]) + low = mid + 1; + else + goto Lis; + } + +Lisnot: +#ifdef DEBUG + for (int i = 0; i < sizeof(table) / sizeof(table[0]); i++) + { + assert(u < table[i][0] || u > table[i][1]); + } +#endif + return 0; + +Lis: +#ifdef DEBUG + for (int i = 0; i < sizeof(table) / sizeof(table[0]); i++) + { + if (u >= table[i][0] && u <= table[i][1]) + return 1; + } + assert(0); // should have been in table +#endif + return 1; +} +