/* * Copyright 2005 John M Bell <jmb202@ecs.soton.ac.uk> * * This file is part of NetSurf, http://www.netsurf-browser.org/ * * NetSurf is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * NetSurf 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ /** \file * UCS conversion tables and RISC OS-specific UTF-8 text handling */ #define _GNU_SOURCE /* for strndup */ #include <assert.h> #include <limits.h> #include <string.h> #include "oslib/osbyte.h" #include "oslib/territory.h" #include "riscos/ucstables.h" #include "utils/log.h" #include "utils/utf8.h" #include "utils/utils.h" /* Common values (ASCII) */ #define common \ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, \ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, \ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, \ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, \ 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, \ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, \ 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, \ 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127 \ /* 0x8c->0x9F, used by many of the encodings */ #define common2 \ 0x2026, 0x2122, 0x2030, 0x2022, 0x2018, 0x2019, 0x2039, 0x203a, \ 0x201c, 0x201d, 0x201e, 0x2013, 0x2014, 0x2212, 0x0152, 0x0153, \ 0x2020, 0x2021, 0xfb01, 0xfb02 static const int latin1_table[256] = { common, 0x20ac, 0x0174, 0x0175, -1, -1, 0x0176, 0x0177, -1, -1, -1, -1, -1, common2, 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175, 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207, 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223, 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239, 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255 }; static const int latin2_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x0104, 0x02D8, 0x0141, 0x00A4, 0x013D, 0x015A, 0x00A7, 0x00A8, 0x0160, 0x015E, 0x0164, 0x0179, 0x00AD, 0x017D, 0x017B, 0x00B0, 0x0105, 0x02DB, 0x0142, 0x00B4, 0x013E, 0x015B, 0x02C7, 0x00B8, 0x0161, 0x015F, 0x0165, 0x017A, 0x02DD, 0x017E, 0x017C, 0x0154, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x0139, 0x0106, 0x00C7, 0x010C, 0x00C9, 0x0118, 0x00CB, 0x011A, 0x00CD, 0x00CE, 0x010E, 0x0110, 0x0143, 0x0147, 0x00D3, 0x00D4, 0x0150, 0x00D6, 0x00D7, 0x0158, 0x016E, 0x00DA, 0x0170, 0x00DC, 0x00DD, 0x0162, 0x00DF, 0x0155, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x013A, 0x0107, 0x00E7, 0x010D, 0x00E9, 0x0119, 0x00EB, 0x011B, 0x00ED, 0x00EE, 0x010F, 0x0111, 0x0144, 0x0148, 0x00F3, 0x00F4, 0x0151, 0x00F6, 0x00F7, 0x0159, 0x016F, 0x00FA, 0x0171, 0x00FC, 0x00FD, 0x0163, 0x02D9 }; static const int latin3_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x0126, 0x02D8, 0x00A3, 0x00A4, -1, 0x0124, 0x00A7, 0x00A8, 0x0130, 0x015E, 0x011E, 0x0134, 0x00AD, -1, 0x017B, 0x00B0, 0x0127, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x0125, 0x00B7, 0x00B8, 0x0131, 0x015F, 0x011F, 0x0135, 0x00BD, -1, 0x017C, 0x00C0, 0x00C1, 0x00C2, -1, 0x00C4, 0x010A, 0x0108, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, -1, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x0120, 0x00D6, 0x00D7, 0x011C, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x016C, 0x015C, 0x00DF, 0x00E0, 0x00E1, 0x00E2, -1, 0x00E4, 0x010B, 0x0109, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, -1, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x0121, 0x00F6, 0x00F7, 0x011D, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x016D, 0x015D, 0x02D9 }; static const int latin4_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x0104, 0x0138, 0x0156, 0x00A4, 0x0128, 0x013B, 0x00A7, 0x00A8, 0x0160, 0x0112, 0x0122, 0x0166, 0x00AD, 0x017D, 0x00AF, 0x00B0, 0x0105, 0x02DB, 0x0157, 0x00B4, 0x0129, 0x013C, 0x02C7, 0x00B8, 0x0161, 0x0113, 0x0123, 0x0167, 0x014A, 0x017E, 0x014B, 0x0100, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x012E, 0x010C, 0x00C9, 0x0118, 0x00CB, 0x0116, 0x00CD, 0x00CE, 0x012A, 0x0110, 0x0145, 0x014C, 0x0136, 0x00D4, 0x00D5, 0x00D6, 0x00D7, 0x00D8, 0x0172, 0x00DA, 0x00DB, 0x00DC, 0x0168, 0x016A, 0x00DF, 0x0101, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x012F, 0x010D, 0x00E9, 0x0119, 0x00EB, 0x0117, 0x00ED, 0x00EE, 0x012B, 0x0111, 0x0146, 0x014D, 0x0137, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x0173, 0x00FA, 0x00FB, 0x00FC, 0x0169, 0x016B, 0x02D9 }; static const int latin5_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 0x011E, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x0130, 0x015E, 0x00DF, 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x011F, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x0131, 0x015F, 0x00FF }; static const int latin6_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x0104, 0x0112, 0x0122, 0x012A, 0x0128, 0x0136, 0x00A7, 0x013B, 0x0110, 0x0160, 0x0166, 0x017D, 0x00AD, 0x016A, 0x014A, 0x00B0, 0x0105, 0x0113, 0x0123, 0x012B, 0x0129, 0x0137, 0x00B7, 0x013C, 0x0111, 0x0161, 0x0167, 0x017E, 0x2015, 0x016B, 0x014B, 0x0100, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x012E, 0x010C, 0x00C9, 0x0118, 0x00CB, 0x0116, 0x00CD, 0x00CE, 0x00CF, 0x00D0, 0x0145, 0x014C, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x0168, 0x00D8, 0x0172, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF, 0x0101, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x012F, 0x010D, 0x00E9, 0x0119, 0x00EB, 0x0117, 0x00ED, 0x00EE, 0x00EF, 0x00F0, 0x0146, 0x014D, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x0169, 0x00F8, 0x0173, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x0138 }; static const int latin7_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0x2026, 0x2122, 0x2030, 0x2022, 0x2018, -1, 0x2039, 0x203a, -1, -1, -1, 0x2013, 0x2014, 0x2212, 0x0152, 0x0153, 0x2020, 0x2021, 0xfb01, 0xfb02, 0x00A0, 0x201D, 0x00A2, 0x00A3, 0x00A4, 0x201E, 0x00A6, 0x00A7, 0x00D8, 0x00A9, 0x0156, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00C6, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x201C, 0x00B5, 0x00B6, 0x00B7, 0x00F8, 0x00B9, 0x0157, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00E6, 0x0104, 0x012E, 0x0100, 0x0106, 0x00C4, 0x00C5, 0x0118, 0x0112, 0x010C, 0x00C9, 0x0179, 0x0116, 0x0122, 0x0136, 0x012A, 0x013B, 0x0160, 0x0143, 0x0145, 0x00D3, 0x014C, 0x00D5, 0x00D6, 0x00D7, 0x0172, 0x0141, 0x015A, 0x016A, 0x00DC, 0x017B, 0x017D, 0x00DF, 0x0105, 0x012F, 0x0101, 0x0107, 0x00E4, 0x00E5, 0x0119, 0x0113, 0x010D, 0x00E9, 0x017A, 0x0117, 0x0123, 0x0137, 0x012B, 0x013C, 0x0161, 0x0144, 0x0146, 0x00F3, 0x014D, 0x00F5, 0x00F6, 0x00F7, 0x0173, 0x0142, 0x015B, 0x016B, 0x00FC, 0x017C, 0x017E, 0x2019 }; static const int latin8_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x1E02, 0x1E03, 0x00A3, 0x010A, 0x010B, 0x1E0A, 0x00A7, 0x1E80, 0x00A9, 0x1E82, 0x1E0B, 0x1EF2, 0x00AD, 0x00AE, 0x0178, 0x1E1E, 0x1E1F, 0x0120, 0x0121, 0x1E40, 0x1E41, 0x00B6, 0x1E56, 0x1E81, 0x1E57, 0x1E83, 0x1E60, 0x1EF3, 0x1E84, 0x1E85, 0x1E61, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 0x0174, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x1E6A, 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x0176, 0x00DF, 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x0175, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x1E6B, 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x0177, 0x00FF }; static const int latin9_table[256] = { common, -1, 0x0174, 0x0175, -1, -1, 0x0176, 0x0177, -1, -1, -1, -1, -1, 0x2026, 0x2122, 0x2030, 0x2022, 0x2018, 0x2019, 0x2039, 0x203a, 0x201c, 0x201d, 0x201e, 0x2013, 0x2014, 0x2212, -1, -1, 0x2020, 0x2021, 0xfb01, 0xfb02, 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x20AC, 0x00A5, 0x0160, 0x00A7, 0x0161, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x017D, 0x00B5, 0x00B6, 0x00B7, 0x017E, 0x00B9, 0x00BA, 0x00BB, 0x0152, 0x0153, 0x0178, 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF, 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF }; static const int latin10_table[256] = { common, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0x2026, 0x2122, 0x2030, 0x2022, 0x2018, 0x2019, 0x2039, 0x203a, 0x201c, -1, -1, 0x2013, 0x2014, 0x2212, -1, -1, 0x2020, 0x2021, 0xfb01, 0xfb02, 0x00A0, 0x0104, 0x0105, 0x0141, 0x20AC, 0x201E, 0x0160, 0x00a7, 0x0161, 0x00A9, 0x0218, 0x00AB, 0x0179, 0x00AD, 0x017A, 0x017B, 0x00B0, 0x00B1, 0x010C, 0x0142, 0x017D, 0x201D, 0x00B6, 0x00B7, 0x017E, 0x010D, 0x0219, 0x00BB, 0x0152, 0x0153, 0x0178, 0x017C, 0x00C0, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x0106, 0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 0x0110, 0x0143, 0x00D2, 0x00D3, 0x00D4, 0x0150, 0x00D6, 0x015A, 0x0170, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x0118, 0x021A, 0x00DF, 0x00E0, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x0107, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x0111, 0x0144, 0x00F2, 0x00F3, 0x00F4, 0x0151, 0x00F6, 0x015B, 0x0171, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x0119, 0x021B, 0x00FF }; static const int welsh_table[256] = { common, 0x20ac, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, common2, 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x1E80, 0x00A9, 0x1E82, 0x00AB, 0x1EF2, 0x00AD, 0x00AE, 0x0178, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, 0x1E81, 0x00B9, 0x1E83, 0x00BB, 0x1EF3, 0x1E84, 0x1E85, 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 0x0174, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x0176, 0x00DF, 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x0175, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x0177, 0x00FF }; static const int greek_table[256] = { common, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0x00A0, 0x2018, 0x2019, 0x00A3, 0x20AC, 0x20AF, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x037A, 0x00AB, 0x00AC, 0x00AD, 0x037E, 0x2015, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0384, 0x0385, 0x0386, 0x0387, 0x0388, 0x0389, 0x038A, 0x00BB, 0x038C, 0x00BD, 0x038E, 0x038F, 0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0, 0x03A1, -1, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, 0x03AA, 0x03AB, 0x03AC, 0x03AD, 0x03AE, 0x03AF, 0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, -1 }; static const int cyrillic_table[256] = { common, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0x00A0, 0x0401, 0x0402, 0x0403, 0x0404, 0x0405, 0x0406, 0x0407, 0x0408, 0x0409, 0x040A, 0x040B, 0x040C, 0x00AD, 0x040E, 0x040F, 0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417, 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F, 0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427, 0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F, 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F, 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F, 0x2116, 0x0451, 0x0452, 0x0453, 0x0454, 0x0455, 0x0456, 0x0457, 0x0458, 0x0459, 0x045A, 0x045B, 0x045C, 0x00A7, 0x045E, 0x045F }; static const int hebrew_table[256] = { common, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0x00A0, -1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x203E, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0x2017, 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF, 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7, 0x05E8, 0x05E9, 0x05EA, -1, -1, 0x200E, 0x200F, -1 }; /** * Retrieve UCS table (above), given alphabet number * * \param alphabet The RISC OS alphabet number * \return pointer to table, or NULL if not found */ const int *ucstable_from_alphabet(int alphabet) { const int *ucstable = NULL; switch (alphabet) { case territory_ALPHABET_LATIN1: ucstable = latin1_table; break; case territory_ALPHABET_LATIN2: ucstable = latin2_table; break; case territory_ALPHABET_LATIN3: ucstable = latin3_table; break; case territory_ALPHABET_LATIN4: ucstable = latin4_table; break; case territory_ALPHABET_LATIN5: ucstable = latin5_table; break; case territory_ALPHABET_LATIN6: ucstable = latin6_table; break; case 114: /* Latin7 */ ucstable = latin7_table; break; case 115: /* Latin8 */ ucstable = latin8_table; break; case 116: /* Latin10 */ ucstable = latin10_table; break; case territory_ALPHABET_LATIN9: ucstable = latin9_table; break; case territory_ALPHABET_WELSH: ucstable = welsh_table; break; case territory_ALPHABET_GREEK: ucstable = greek_table; break; case territory_ALPHABET_CYRILLIC: ucstable = cyrillic_table; break; case territory_ALPHABET_HEBREW: ucstable = hebrew_table; break; default: ucstable = NULL; break; } return ucstable; } static const char *localencodings[] = { "ISO-8859-1//TRANSLIT", /* BFont - 100 - just use Latin1, instead */ "ISO-8859-1//TRANSLIT", "ISO-8859-2//TRANSLIT", "ISO-8859-3//TRANSLIT", "ISO-8859-4//TRANSLIT", "ISO-8859-5//TRANSLIT", "ISO-8859-6//TRANSLIT", "ISO-8859-7//TRANSLIT", "ISO-8859-8//TRANSLIT", "ISO-8859-9//TRANSLIT", "ISO-IR-182//TRANSLIT", "UTF-8", "ISO-8859-15//TRANSLIT", "ISO-8859-10//TRANSLIT", "ISO-8859-13//TRANSLIT", "ISO-8859-14//TRANSLIT", "ISO-8859-16//TRANSLIT", #define CONT_ENC_END 116 /* RISC OS alphabet numbers lie in a * contiguous range [100,CONT_ENC_END] * _except_ for Cyrillic2, which doesn't. */ "CP866//TRANSLIT" /* Cyrillic2 - 120 */ }; static const struct special { char local; /**< Local 8bit representation */ char len; /**< Length (in bytes) of UTF-8 character */ const char *utf; /**< UTF-8 representation */ } special_chars[] = { { 0x80, 3, "\xE2\x82\xAC" }, /* EURO SIGN */ { 0x81, 2, "\xC5\xB4" }, /* LATIN CAPITAL LETTER W WITH CIRCUMFLEX */ { 0x82, 2, "\xC5\xB5" }, /* LATIN SMALL LETTER W WITH CIRCUMFLEX */ { 0x84, 3, "\xE2\x9C\x98" }, /* HEAVY BALLOT X */ { 0x85, 2, "\xC5\xB6" }, /* LATIN CAPITAL LETTER Y WITH CIRCUMFLEX */ { 0x86, 2, "\xC5\xB7" }, /* LATIN SMALL LETTER Y WITH CIRCUMFLEX */ { 0x88, 3, "\xE2\x87\x90" }, /* LEFTWARDS DOUBLE ARROW */ { 0x89, 3, "\xE2\x87\x92" }, /* RIGHTWARDS DOUBLE ARROW */ { 0x8a, 3, "\xE2\x87\x93" }, /* DOWNWARDS DOUBLE ARROW */ { 0x8b, 3, "\xE2\x87\x91" }, /* UPWARDS DOUBLE ARROW */ { 0x8c, 3, "\xE2\x80\xA6" }, /* HORIZONTAL ELLIPSIS */ { 0x8d, 3, "\xE2\x84\xA2" }, /* TRADE MARK SIGN */ { 0x8e, 3, "\xE2\x80\xB0" }, /* PER MILLE SIGN */ { 0x8f, 3, "\xE2\x80\xA2" }, /* BULLET */ { 0x90, 3, "\xE2\x80\x98" }, /* LEFT SINGLE QUOTATION MARK */ { 0x91, 3, "\xE2\x80\x99" }, /* RIGHT SINGLE QUOTATION MARK */ { 0x92, 3, "\xE2\x80\xB9" }, /* SINGLE LEFT-POINTING ANGLE QUOTATION MARK */ { 0x93, 3, "\xE2\x80\xBA" }, /* SINGLE RIGHT-POINTING ANGLE QUOTATION MARK */ { 0x94, 3, "\xE2\x80\x9C" }, /* LEFT DOUBLE QUOTATION MARK */ { 0x95, 3, "\xE2\x80\x9D" }, /* RIGHT DOUBLE QUOTATION MARK */ { 0x96, 3, "\xE2\x80\x9E" }, /* DOUBLE LOW-9 QUOTATION MARK */ { 0x97, 3, "\xE2\x80\x93" }, /* EN DASH */ { 0x98, 3, "\xE2\x80\x94" }, /* EM DASH */ { 0x99, 3, "\xE2\x88\x92" }, /* MINUS SIGN */ { 0x9a, 2, "\xC5\x92" }, /* LATIN CAPITAL LIGATURE OE */ { 0x9b, 2, "\xC5\x93" }, /* LATIN SMALL LIGATURE OE */ { 0x9c, 3, "\xE2\x80\xA0" }, /* DAGGER */ { 0x9d, 3, "\xE2\x80\xA1" }, /* DOUBLE DAGGER */ { 0x9e, 3, "\xEF\xAC\x81" }, /* LATIN SMALL LIGATURE FI */ { 0x9f, 3, "\xEF\xAC\x82" } /* LATIN SMALL LIGATURE FL */ }; /** * Convert a UTF-8 encoded string into the system local encoding * * \param string The string to convert * \param len The length (in bytes) of the string, or 0 * \param result Pointer to location in which to store result * \return The appropriate utf8_convert_ret value */ utf8_convert_ret utf8_to_local_encoding(const char *string, size_t len, char **result) { os_error *error; int alphabet, i; size_t off, prev_off; char *temp, *cur_pos; const char *enc; utf8_convert_ret err; assert(string); assert(result); /* get length, if necessary */ if (len == 0) len = strlen(string); /* read system alphabet */ error = xosbyte1(osbyte_ALPHABET_NUMBER, 127, 0, &alphabet); if (error) alphabet = territory_ALPHABET_LATIN1; /* UTF-8 -> simply copy string */ if (alphabet == 111 /* UTF-8 */) { *result = strndup(string, len); return UTF8_CONVERT_OK; } /* get encoding name */ enc = (alphabet <= CONT_ENC_END ? localencodings[alphabet - 100] : (alphabet == 120 ? localencodings[CONT_ENC_END + 1] : localencodings[0])); /* create output buffer */ *(result) = malloc(len + 1); if (!(*result)) return UTF8_CONVERT_NOMEM; *(*result) = '\0'; prev_off = 0; cur_pos = (*result); /* Iterate over string, converting input between unconvertable * characters and inserting appropriate output for characters * that iconv can't handle. */ for (off = 0; off < len; off = utf8_next(string, len, off)) { if (string[off] != 0xE2 && string[off] != 0xC5 && string[off] != 0xEF) continue; for (i = 0; i != NOF_ELEMENTS(special_chars); i++) { if (strncmp(string + off, special_chars[i].utf, special_chars[i].len) != 0) continue; /* 0 length has a special meaning to utf8_to_enc */ if (off - prev_off > 0) { err = utf8_to_enc(string + prev_off, enc, off - prev_off, &temp); if (err != UTF8_CONVERT_OK) { assert(err != UTF8_CONVERT_BADENC); free(*result); return UTF8_CONVERT_NOMEM; } strcat(cur_pos, temp); cur_pos += strlen(temp); free(temp); } *cur_pos = special_chars[i].local; *(++cur_pos) = '\0'; prev_off = off + special_chars[i].len; } } /* handle last chunk * NB. 0 length has a special meaning to utf8_to_enc */ if (prev_off < len) { err = utf8_to_enc(string + prev_off, enc, len - prev_off, &temp); if (err != UTF8_CONVERT_OK) { assert(err != UTF8_CONVERT_BADENC); free(*result); return UTF8_CONVERT_NOMEM; } strcat(cur_pos, temp); free(temp); } return UTF8_CONVERT_OK; } /** * Convert a string encoded in the system local encoding to UTF-8 * * \param string The string to convert * \param len The length (in bytes) of the string, or 0 * \param result Pointer to location in which to store result * \return The appropriate utf8_convert_ret value */ utf8_convert_ret utf8_from_local_encoding(const char *string, size_t len, char **result) { os_error *error; int alphabet, i, num_specials = 0, result_alloc; #define SPECIAL_CHUNK_SIZE 255 size_t off, prev_off, cur_off; char *temp; const char *enc; utf8_convert_ret err; assert(string && result); /* get length, if necessary */ if (len == 0) len = strlen(string); /* read system alphabet */ error = xosbyte1(osbyte_ALPHABET_NUMBER, 127, 0, &alphabet); if (error) alphabet = territory_ALPHABET_LATIN1; /* UTF-8 -> simply copy string */ if (alphabet == 111 /* UTF-8 */) { temp = strndup(string, len); if (!temp) return UTF8_CONVERT_NOMEM; *result = temp; return UTF8_CONVERT_OK; } /* get encoding name */ enc = (alphabet <= CONT_ENC_END ? localencodings[alphabet - 100] : (alphabet == 120 ? localencodings[CONT_ENC_END + 1] : localencodings[0])); /* create output buffer (oversized) */ result_alloc = (len * 4) + (3 * SPECIAL_CHUNK_SIZE) + 1; *(result) = malloc(result_alloc); if (!(*result)) return UTF8_CONVERT_NOMEM; *(*result) = '\0'; prev_off = 0; cur_off = 0; /* Iterate over string, converting input between unconvertable * characters and inserting appropriate output for characters * that iconv can't handle. */ for (off = 0; off < len; off++) { if (string[off] < 0x80 || string[off] > 0x9f) continue; for (i = 0; i != NOF_ELEMENTS(special_chars); i++) { if (string[off] != special_chars[i].local) continue; /* 0 length has a special meaning to utf8_from_enc */ if (off - prev_off > 0) { err = utf8_from_enc(string + prev_off, enc, off - prev_off, &temp); if (err != UTF8_CONVERT_OK) { assert(err != UTF8_CONVERT_BADENC); LOG(("utf8_from_enc failed")); free(*result); return UTF8_CONVERT_NOMEM; } strcat((*result) + cur_off, temp); cur_off += strlen(temp); free(temp); } strcat((*result) + cur_off, special_chars[i].utf); cur_off += special_chars[i].len; prev_off = off + 1; num_specials++; if (num_specials % SPECIAL_CHUNK_SIZE == SPECIAL_CHUNK_SIZE - 1) { char *temp = realloc((*result), result_alloc + (3 * SPECIAL_CHUNK_SIZE)); if (!temp) { free(*result); return UTF8_CONVERT_NOMEM; } *result = temp; result_alloc += (3 * SPECIAL_CHUNK_SIZE); } } } /* handle last chunk * NB. 0 length has a special meaning to utf8_from_enc */ if (prev_off < len) { err = utf8_from_enc(string + prev_off, enc, len - prev_off, &temp); if (err != UTF8_CONVERT_OK) { assert(err != UTF8_CONVERT_BADENC); LOG(("utf8_from_enc failed")); free(*result); return UTF8_CONVERT_NOMEM; } strcat((*result) + cur_off, temp); cur_off += strlen(temp); free(temp); } /* and copy into more reasonably-sized buffer */ temp = realloc((*result), cur_off + 1); if (!temp) { LOG(("realloc failed")); free(*result); return UTF8_CONVERT_NOMEM; } *result = temp; return UTF8_CONVERT_OK; }