/* * MacDingbats codepage functions * * Copyright (C) 2008-2023, Joachim Metz * * Refer to AUTHORS for acknowledgements. * * This program 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 3 of the License, or * (at your option) any later version. * * This program 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 Lesser General Public License * along with this program. If not, see . */ #include #include #include "libuna_codepage_mac_dingbats.h" #include "libuna_libcerror.h" #include "libuna_types.h" /* Extended ASCII to Unicode character lookup table for the MacDingbats codepage * Unknown are filled with the Unicode replacement character 0xfffd */ const uint16_t libuna_codepage_mac_dingbats_byte_stream_to_unicode_base_0x20[ 224 ] = { 0x0020, 0x2701, 0x2702, 0x2703, 0x2704, 0x260e, 0x2706, 0x2707, 0x2708, 0x2709, 0x261b, 0x261e, 0x270c, 0x270d, 0x270e, 0x270f, 0x2710, 0x2711, 0x2712, 0x2713, 0x2714, 0x2715, 0x2716, 0x2717, 0x2718, 0x2719, 0x271a, 0x271b, 0x271c, 0x271d, 0x271e, 0x271f, 0x2720, 0x2721, 0x2722, 0x2723, 0x2724, 0x2725, 0x2726, 0x2727, 0x2605, 0x2729, 0x272a, 0x272b, 0x272c, 0x272d, 0x272e, 0x272f, 0x2730, 0x2731, 0x2732, 0x2733, 0x2734, 0x2735, 0x2736, 0x2737, 0x2738, 0x2739, 0x273a, 0x273b, 0x273c, 0x273d, 0x273e, 0x273f, 0x2740, 0x2741, 0x2742, 0x2743, 0x2744, 0x2745, 0x2746, 0x2747, 0x2748, 0x2749, 0x274a, 0x274b, 0x25cf, 0x274d, 0x25a0, 0x274f, 0x2750, 0x2751, 0x2752, 0x25b2, 0x25bc, 0x25c6, 0x2756, 0x25d7, 0x2758, 0x2759, 0x275a, 0x275b, 0x275c, 0x275d, 0x275e, 0x007f, 0x2768, 0x2769, 0x276a, 0x276b, 0x276c, 0x276d, 0x276e, 0x276f, 0x2770, 0x2771, 0x2772, 0x2773, 0x2774, 0x2775, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x2761, 0x2762, 0x2763, 0x2764, 0x2765, 0x2766, 0x2767, 0x2663, 0x2666, 0x2665, 0x2660, 0x2460, 0x2461, 0x2462, 0x2463, 0x2464, 0x2465, 0x2466, 0x2467, 0x2468, 0x2469, 0x2776, 0x2777, 0x2778, 0x2779, 0x277a, 0x277b, 0x277c, 0x277d, 0x277e, 0x277f, 0x2780, 0x2781, 0x2782, 0x2783, 0x2784, 0x2785, 0x2786, 0x2787, 0x2788, 0x2789, 0x278a, 0x278b, 0x278c, 0x278d, 0x278e, 0x278f, 0x2790, 0x2791, 0x2792, 0x2793, 0x2794, 0x2192, 0x2194, 0x2195, 0x2798, 0x2799, 0x279a, 0x279b, 0x279c, 0x279d, 0x279e, 0x279f, 0x27a0, 0x27a1, 0x27a2, 0x27a3, 0x27a4, 0x27a5, 0x27a6, 0x27a7, 0x27a8, 0x27a9, 0x27aa, 0x27ab, 0x27ac, 0x27ad, 0x27ae, 0x27af, 0xfffd, 0x27b1, 0x27b2, 0x27b3, 0x27b4, 0x27b5, 0x27b6, 0x27b7, 0x27b8, 0x27b9, 0x27ba, 0x27bb, 0x27bc, 0x27bd, 0x27be, 0xfffd }; /* Unicode to ASCII character lookup tables for the MacDingbats codepage * Unknown are filled with the ASCII replacement character 0x1a */ const uint8_t libuna_codepage_mac_dingbats_unicode_to_byte_stream_base_0x2460[ 16 ] = { 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a }; const uint8_t libuna_codepage_mac_dingbats_unicode_to_byte_stream_base_0x2700[ 192 ] = { 0x1a, 0x21, 0x22, 0x23, 0x24, 0x1a, 0x26, 0x27, 0x28, 0x29, 0x1a, 0x1a, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x1a, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x1a, 0x6d, 0x1a, 0x6f, 0x70, 0x71, 0x72, 0x1a, 0x1a, 0x1a, 0x76, 0x1a, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x1a, 0x1a, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0x1a, 0x1a, 0x1a, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0x1a, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0x1a }; /* Copies an Unicode character from a MacDingbats encoded byte stream * Returns 1 if successful or -1 on error */ int libuna_codepage_mac_dingbats_copy_from_byte_stream( libuna_unicode_character_t *unicode_character, const uint8_t *byte_stream, size_t byte_stream_size, size_t *byte_stream_index, libcerror_error_t **error ) { static char *function = "libuna_codepage_mac_dingbats_copy_from_byte_stream"; libuna_unicode_character_t safe_unicode_character = 0xfffd; size_t safe_byte_stream_index = 0; uint8_t byte_stream_character = 0; if( unicode_character == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid Unicode character.", function ); return( -1 ); } if( byte_stream == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream.", function ); return( -1 ); } if( byte_stream_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid byte stream size value exceeds maximum.", function ); return( -1 ); } if( byte_stream_index == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream index.", function ); return( -1 ); } safe_byte_stream_index = *byte_stream_index; if( safe_byte_stream_index >= byte_stream_size ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, "%s: byte stream too small.", function ); return( -1 ); } byte_stream_character = byte_stream[ safe_byte_stream_index++ ]; if( byte_stream_character < 0x20 ) { safe_unicode_character = byte_stream_character; } else { byte_stream_character -= 0x20; safe_unicode_character = libuna_codepage_mac_dingbats_byte_stream_to_unicode_base_0x20[ byte_stream_character ]; } *unicode_character = safe_unicode_character; *byte_stream_index = safe_byte_stream_index; return( 1 ); } /* Copies an Unicode character to a MacDingbats encoded byte stream * Returns 1 if successful or -1 on error */ int libuna_codepage_mac_dingbats_copy_to_byte_stream( libuna_unicode_character_t unicode_character, uint8_t *byte_stream, size_t byte_stream_size, size_t *byte_stream_index, libcerror_error_t **error ) { static char *function = "libuna_codepage_mac_dingbats_copy_to_byte_stream"; size_t safe_byte_stream_index = 0; uint16_t byte_stream_value = 0x001a; if( byte_stream == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream.", function ); return( -1 ); } if( byte_stream_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid byte stream size value exceeds maximum.", function ); return( -1 ); } if( byte_stream_index == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream index.", function ); return( -1 ); } safe_byte_stream_index = *byte_stream_index; if( safe_byte_stream_index >= byte_stream_size ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, "%s: byte stream too small.", function ); return( -1 ); } if( ( unicode_character <= 0x0020 ) || ( unicode_character == 0x007f ) ) { byte_stream_value = (uint16_t) unicode_character; } else if( ( unicode_character >= 0x2460 ) && ( unicode_character < 0x2470 ) ) { unicode_character -= 0x2460; byte_stream_value = libuna_codepage_mac_dingbats_unicode_to_byte_stream_base_0x2460[ unicode_character ]; } else if( ( unicode_character >= 0x2700 ) && ( unicode_character < 0x27c0 ) ) { unicode_character -= 0x2700; byte_stream_value = libuna_codepage_mac_dingbats_unicode_to_byte_stream_base_0x2700[ unicode_character ]; } else switch( unicode_character ) { case 0x2192: byte_stream_value = 0xd5; break; case 0x2194: byte_stream_value = 0xd6; break; case 0x2195: byte_stream_value = 0xd7; break; case 0x25a0: byte_stream_value = 0x6e; break; case 0x25b2: byte_stream_value = 0x73; break; case 0x25bc: byte_stream_value = 0x74; break; case 0x25c6: byte_stream_value = 0x75; break; case 0x25cf: byte_stream_value = 0x6c; break; case 0x25d7: byte_stream_value = 0x77; break; case 0x2605: byte_stream_value = 0x48; break; case 0x260e: byte_stream_value = 0x25; break; case 0x261b: byte_stream_value = 0x2a; break; case 0x261e: byte_stream_value = 0x2b; break; case 0x2660: byte_stream_value = 0xab; break; case 0x2663: byte_stream_value = 0xa8; break; case 0x2665: byte_stream_value = 0xaa; break; case 0x2666: byte_stream_value = 0xa9; break; default: byte_stream_value = 0x1a; break; } byte_stream[ safe_byte_stream_index++ ] = (uint8_t) ( byte_stream_value & 0x00ff ); *byte_stream_index = safe_byte_stream_index; return( 1 ); }