/* * MacCentralEurRoman 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_centraleurroman.h" #include "libuna_libcerror.h" #include "libuna_types.h" /* Extended ASCII to Unicode character lookup table for the MacCentralEurRoman codepage * Unknown are filled with the Unicode replacement character 0xfffd */ const uint16_t libuna_codepage_mac_centraleurroman_byte_stream_to_unicode_base_0x80[ 128 ] = { 0x00c4, 0x0100, 0x0101, 0x00c9, 0x0104, 0x00d6, 0x00dc, 0x00e1, 0x0105, 0x010c, 0x00e4, 0x010d, 0x0106, 0x0107, 0x00e9, 0x0179, 0x017a, 0x010e, 0x00ed, 0x010f, 0x0112, 0x0113, 0x0116, 0x00f3, 0x0117, 0x00f4, 0x00f6, 0x00f5, 0x00fa, 0x011a, 0x011b, 0x00fc, 0x2020, 0x00b0, 0x0118, 0x00a3, 0x00a7, 0x2022, 0x00b6, 0x00df, 0x00ae, 0x00a9, 0x2122, 0x0119, 0x00a8, 0x2260, 0x0123, 0x012e, 0x012f, 0x012a, 0x2264, 0x2265, 0x012b, 0x0136, 0x2202, 0x2211, 0x0142, 0x013b, 0x013c, 0x013d, 0x013e, 0x0139, 0x013a, 0x0145, 0x0146, 0x0143, 0x00ac, 0x221a, 0x0144, 0x0147, 0x2206, 0x00ab, 0x00bb, 0x2026, 0x00a0, 0x0148, 0x0150, 0x00d5, 0x0151, 0x014c, 0x2013, 0x2014, 0x201c, 0x201d, 0x2018, 0x2019, 0x00f7, 0x25ca, 0x014d, 0x0154, 0x0155, 0x0158, 0x2039, 0x203a, 0x0159, 0x0156, 0x0157, 0x0160, 0x201a, 0x201e, 0x0161, 0x015a, 0x015b, 0x00c1, 0x0164, 0x0165, 0x00cd, 0x017d, 0x017e, 0x016a, 0x00d3, 0x00d4, 0x016b, 0x016e, 0x00da, 0x016f, 0x0170, 0x0171, 0x0172, 0x0173, 0x00dd, 0x00fd, 0x0137, 0x017b, 0x0141, 0x017c, 0x0122, 0x02c7 }; /* Unicode to ASCII character lookup tables for the MacCentralEurRoman codepage * Unknown are filled with the ASCII replacement character 0x1a */ const uint8_t libuna_codepage_mac_centraleurroman_unicode_to_byte_stream_base_0x00a0[ 224 ] = { 0xca, 0x1a, 0x1a, 0xa3, 0x1a, 0x1a, 0x1a, 0xa4, 0xac, 0xa9, 0x1a, 0xc7, 0xc2, 0x1a, 0xa8, 0x1a, 0xa1, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xa6, 0x1a, 0x1a, 0x1a, 0x1a, 0xc8, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xe7, 0x1a, 0x1a, 0x80, 0x1a, 0x1a, 0x1a, 0x1a, 0x83, 0x1a, 0x1a, 0x1a, 0xea, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xee, 0xef, 0xcd, 0x85, 0x1a, 0x1a, 0x1a, 0xf2, 0x1a, 0x86, 0xf8, 0x1a, 0xa7, 0x1a, 0x87, 0x1a, 0x1a, 0x8a, 0x1a, 0x1a, 0x1a, 0x1a, 0x8e, 0x1a, 0x1a, 0x1a, 0x92, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x97, 0x99, 0x9b, 0x9a, 0xd6, 0x1a, 0x1a, 0x9c, 0x1a, 0x9f, 0xf9, 0x1a, 0x1a, 0x81, 0x82, 0x1a, 0x1a, 0x84, 0x88, 0x8c, 0x8d, 0x1a, 0x1a, 0x1a, 0x1a, 0x89, 0x8b, 0x91, 0x93, 0x1a, 0x1a, 0x94, 0x95, 0x1a, 0x1a, 0x96, 0x98, 0xa2, 0xab, 0x9d, 0x9e, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xfe, 0xae, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xb1, 0xb4, 0x1a, 0x1a, 0xaf, 0xb0, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xb5, 0xfa, 0x1a, 0xbd, 0xbe, 0xb9, 0xba, 0xbb, 0xbc, 0x1a, 0x1a, 0xfc, 0xb8, 0xc1, 0xc4, 0xbf, 0xc0, 0xc5, 0xcb, 0x1a, 0x1a, 0x1a, 0xcf, 0xd8, 0x1a, 0x1a, 0xcc, 0xce, 0x1a, 0x1a, 0xd9, 0xda, 0xdf, 0xe0, 0xdb, 0xde, 0xe5, 0xe6, 0x1a, 0x1a, 0x1a, 0x1a, 0xe1, 0xe4, 0x1a, 0x1a, 0xe8, 0xe9, 0x1a, 0x1a, 0x1a, 0x1a, 0xed, 0xf0, 0x1a, 0x1a, 0xf1, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x8f, 0x90, 0xfb, 0xfd, 0xeb, 0xec, 0x1a }; const uint8_t libuna_codepage_mac_centraleurroman_unicode_to_byte_stream_base_0x2010[ 24 ] = { 0x1a, 0x1a, 0x1a, 0xd0, 0xd1, 0x1a, 0x1a, 0x1a, 0xd4, 0xd5, 0xe2, 0x1a, 0xd2, 0xd3, 0xe3, 0x1a, 0xa0, 0x1a, 0xa5, 0x1a, 0x1a, 0x1a, 0xc9, 0x1a }; /* Copies an Unicode character from a MacCentralEurRoman encoded byte stream * Returns 1 if successful or -1 on error */ int libuna_codepage_mac_centraleurroman_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_centraleurroman_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 < 0x80 ) { safe_unicode_character = byte_stream_character; } else { byte_stream_character -= 0x80; safe_unicode_character = libuna_codepage_mac_centraleurroman_byte_stream_to_unicode_base_0x80[ byte_stream_character ]; } *unicode_character = safe_unicode_character; *byte_stream_index = safe_byte_stream_index; return( 1 ); } /* Copies an Unicode character to a MacCentralEurRoman encoded byte stream * Returns 1 if successful or -1 on error */ int libuna_codepage_mac_centraleurroman_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_centraleurroman_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 < 0x0080 ) { byte_stream_value = (uint16_t) unicode_character; } else if( ( unicode_character >= 0x00a0 ) && ( unicode_character < 0x0180 ) ) { unicode_character -= 0x00a0; byte_stream_value = libuna_codepage_mac_centraleurroman_unicode_to_byte_stream_base_0x00a0[ unicode_character ]; } else if( ( unicode_character >= 0x2010 ) && ( unicode_character < 0x2028 ) ) { unicode_character -= 0x2010; byte_stream_value = libuna_codepage_mac_centraleurroman_unicode_to_byte_stream_base_0x2010[ unicode_character ]; } else switch( unicode_character ) { case 0x02c7: byte_stream_value = 0xff; break; case 0x2039: byte_stream_value = 0xdc; break; case 0x203a: byte_stream_value = 0xdd; break; case 0x2122: byte_stream_value = 0xaa; break; case 0x2202: byte_stream_value = 0xb6; break; case 0x2206: byte_stream_value = 0xc6; break; case 0x2211: byte_stream_value = 0xb7; break; case 0x221a: byte_stream_value = 0xc3; break; case 0x2260: byte_stream_value = 0xad; break; case 0x2264: byte_stream_value = 0xb2; break; case 0x2265: byte_stream_value = 0xb3; break; case 0x25ca: byte_stream_value = 0xd7; 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 ); }