X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=apps%2Firssi%2Fsrc%2Ffe-common%2Fcore%2Futf8.c;fp=apps%2Firssi%2Fsrc%2Ffe-common%2Fcore%2Futf8.c;h=0000000000000000000000000000000000000000;hb=72c2de619079457f7a68100eb13385275a424a23;hp=eaa77674e5527c53a9ad0cf3b99fcd2a0ba01296;hpb=e7b6c157b80152bf9fb9266e6bdd93f9fb0db776;p=runtime.git diff --git a/apps/irssi/src/fe-common/core/utf8.c b/apps/irssi/src/fe-common/core/utf8.c deleted file mode 100644 index eaa77674..00000000 --- a/apps/irssi/src/fe-common/core/utf8.c +++ /dev/null @@ -1,271 +0,0 @@ -/* utf8.c - Operations on UTF-8 strings. - * - * Copyright (C) 2002 Timo Sirainen - * - * Based on GLib code by - * - * Copyright (C) 1999 Tom Tromey - * Copyright (C) 2000 Red Hat, Inc. - * - * UTF-8 width tables based on locale data from GNU libc by - * - * Copyright (C) 1991-2002 Free Software Foundation, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include "module.h" - -#define UTF8_COMPUTE(Char, Mask, Len) \ - if (Char < 128) \ - { \ - Len = 1; \ - Mask = 0x7f; \ - } \ - else if ((Char & 0xe0) == 0xc0) \ - { \ - Len = 2; \ - Mask = 0x1f; \ - } \ - else if ((Char & 0xf0) == 0xe0) \ - { \ - Len = 3; \ - Mask = 0x0f; \ - } \ - else if ((Char & 0xf8) == 0xf0) \ - { \ - Len = 4; \ - Mask = 0x07; \ - } \ - else if ((Char & 0xfc) == 0xf8) \ - { \ - Len = 5; \ - Mask = 0x03; \ - } \ - else if ((Char & 0xfe) == 0xfc) \ - { \ - Len = 6; \ - Mask = 0x01; \ - } \ - else \ - Len = -1; - -#define UTF8_GET(Result, Chars, Count, Mask, Len) \ - (Result) = (Chars)[0] & (Mask); \ - for ((Count) = 1; (Count) < (Len); ++(Count)) \ - { \ - if (((Chars)[(Count)] & 0xc0) != 0x80) \ - { \ - (Result) = -1; \ - break; \ - } \ - (Result) <<= 6; \ - (Result) |= ((Chars)[(Count)] & 0x3f); \ - } - -int get_utf8_char(const unsigned char **ptr, int len, unichar *chr_r) -{ - int i, result, mask, chrlen; - - mask = 0; - UTF8_COMPUTE(**ptr, mask, chrlen); - if (chrlen == -1) - return -2; - - if (chrlen > len) - return -1; - - UTF8_GET(result, *ptr, i, mask, chrlen); - if (result == -1) - return -2; - - *chr_r = (unichar) result; - *ptr += chrlen-1; - return result; -} - -int strlen_utf8(const char *str) -{ - const unsigned char *p = (const unsigned char *) str; - int len; - unichar chr_r; - - len = 0; - while (*p != '\0' && get_utf8_char(&p, 6, &chr_r) > 0) { - len++; - p++; - } - return len; -} - -int utf16_char_to_utf8(unichar c, char *outbuf) -{ - int len, i, first; - - len = 0; - if (c < 0x80) { - first = 0; - len = 1; - } else if (c < 0x800) { - first = 0xc0; - len = 2; - } else if (c < 0x10000) { - first = 0xe0; - len = 3; - } else if (c < 0x200000) { - first = 0xf0; - len = 4; - } else if (c < 0x4000000) { - first = 0xf8; - len = 5; - } else { - first = 0xfc; - len = 6; - } - - if (outbuf) { - for (i = len - 1; i > 0; --i) { - outbuf[i] = (c & 0x3f) | 0x80; - c >>= 6; - } - outbuf[0] = c | first; - } - - return len; -} - -void utf8_to_utf16(const char *str, unichar *out) -{ - const unsigned char *p = (const unsigned char *) str; - int i, result, mask, len; - - while (*p != '\0') { - mask = 0; - UTF8_COMPUTE(*p, mask, len); - if (len == -1) - break; - - UTF8_GET(result, p, i, mask, len); - if (result == -1) - break; - - p += len; - *out++ = result; - } - - *out = '\0'; -} - -void utf16_to_utf8(const unichar *str, char *out) -{ - int len; - - while (*str != '\0') { - len = utf16_char_to_utf8(*str, out); - out += len; - - str++; - } - *out = '\0'; -} - -void utf16_to_utf8_with_pos(const unichar *str, int spos, char *out, int *opos) -{ - int len; - const unichar *sstart = str; - char *ostart = out; - - *opos = 0; - while (*str != '\0') { - len = utf16_char_to_utf8(*str, out); - out += len; - - str++; - if(str - sstart == spos) - *opos = out - ostart; - } - *out = '\0'; -} - -static const unichar wcc[] = { - 0x0, 0x300, 0x34F, 0x360, 0x363, 0x483, 0x487, 0x488, 0x48A, 0x591, - 0x5A2, 0x5A3, 0x5BA, 0x5BB, 0x5BE, 0x5BF, 0x5C0, 0x5C1, 0x5C3, 0x5C4, - 0x5C5, 0x64B, 0x656, 0x670, 0x671, 0x6D6, 0x6E5, 0x6E7, 0x6E9, 0x6EA, - 0x6EE, 0x70F, 0x710, 0x711, 0x712, 0x730, 0x74B, 0x7A6, 0x7B1, 0x901, - 0x903, 0x93C, 0x93D, 0x941, 0x949, 0x94D, 0x94E, 0x951, 0x955, 0x962, - 0x964, 0x981, 0x982, 0x9BC, 0x9BD, 0x9C1, 0x9C5, 0x9CD, 0x9CE, 0x9E2, - 0x9E4, 0xA02, 0xA03, 0xA3C, 0xA3D, 0xA41, 0xA43, 0xA47, 0xA49, 0xA4B, - 0xA4E, 0xA70, 0xA72, 0xA81, 0xA83, 0xABC, 0xABD, 0xAC1, 0xAC6, 0xAC7, - 0xAC9, 0xACD, 0xACE, 0xB01, 0xB02, 0xB3C, 0xB3D, 0xB3F, 0xB40, 0xB41, - 0xB44, 0xB4D, 0xB4E, 0xB56, 0xB57, 0xB82, 0xB83, 0xBC0, 0xBC1, 0xBCD, - 0xBCE, 0xC3E, 0xC41, 0xC46, 0xC49, 0xC4A, 0xC4E, 0xC55, 0xC57, 0xCBF, - 0xCC0, 0xCC6, 0xCC7, 0xCCC, 0xCCE, 0xD41, 0xD44, 0xD4D, 0xD4E, 0xDCA, - 0xDCB, 0xDD2, 0xDD5, 0xDD6, 0xDD7, 0xE31, 0xE32, 0xE34, 0xE3B, 0xE47, - 0xE4F, 0xEB1, 0xEB2, 0xEB4, 0xEBA, 0xEBB, 0xEBD, 0xEC8, 0xECE, 0xF18, - 0xF1A, 0xF35, 0xF36, 0xF37, 0xF38, 0xF39, 0xF3A, 0xF71, 0xF7F, 0xF80, - 0xF85, 0xF86, 0xF88, 0xF90, 0xF98, 0xF99, 0xFBD, 0xFC6, 0xFC7, 0x102D, - 0x1031, 0x1032, 0x1033, 0x1036, 0x1038, 0x1039, 0x103A, 0x1058, 0x105A, - 0x1100, 0x1160, 0x17B7, 0x17BE, 0x17C6, 0x17C7, 0x17C9, 0x17D4, 0x180B, - 0x180F, 0x18A9, 0x18AA, 0x200B, 0x2010, 0x202A, 0x202F, 0x206A, 0x2070, - 0x20D0, 0x20E4, 0x2E80, 0x3008, 0x300C, 0x3014, 0x3016, 0x3018, 0x301C, - 0x302A, 0x3030, 0x303F, 0x3041, 0x3095, 0x3099, 0x309B, 0xA4C7, 0xAC00, - 0xD7A4, 0xF8F0, 0xF900, 0xFA2E, 0xFB1E, 0xFB1F, 0xFE20, 0xFE24, 0xFE30, - 0xFE6C, 0xFEFF, 0xFF00, 0xFF01, 0xFF5F, 0xFFE0, 0xFFE7, 0xFFF9, 0xFFFC, -#if 1 - 0x1D167, 0x1D16A, 0x1D173, 0x1D183, 0x1D185, 0x1D18C, 0x1D1AA, 0x1D1AE, - 0x20000, 0x2A6D7, 0x2F800, 0x2FA1E, 0xE0001, 0xE0002, 0xE0020, 0xE0080 -#endif -}; - -static const int wccnum = sizeof(wcc) / sizeof(wcc[0]) - 1; - -static const char wws[] = { - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, - 1, 2, 1, 2, 0, 2, 1, 2, 1, 0, 2, 1, 2, 1, 0, 2, 1, 0, 1, 0, 1, 2, 1, 0, - 1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 1, 0, 1, -1 -}; - -int utf8_width(unichar c) -{ - int p, q, r; - unichar d; - - if (c < wcc[1]) - return 1; - - p = 0; - q = wccnum; - - while (p < q - 1) { - r = (p + q)/2; - d = wcc[r]; - if (d < c) - p = r; - else if (d > c) - q = r; - else - return wws[r]; - } - - return wws[p]; -}