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/*
* Windows 1252 codepage (Western European/Latin 1) functions
*
* Copyright (C) 2008-2024, Joachim Metz <joachim.metz@gmail.com>
*
* 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 <https://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <types.h>
#include "libuna_codepage_windows_1252.h"
#include "libuna_libcerror.h"
#include "libuna_types.h"
/* Extended ASCII to Unicode character lookup table for the Windows 1252 codepage
* Unknown are filled with the Unicode replacement character 0xfffd
*/
const uint16_t libuna_codepage_windows_1252_byte_stream_to_unicode_base_0x80[ 32 ] = {
0x20ac, 0xfffd, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021,
0x02c6, 0x2030, 0x0160, 0x2039, 0x0152, 0xfffd, 0x017d, 0xfffd,
0xfffd, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
0x02dc, 0x2122, 0x0161, 0x203a, 0x0153, 0xfffd, 0x017e, 0x0178
};
/* Unicode to ASCII character lookup tables for the Windows 1252 codepage
* Unknown are filled with the ASCII replacement character 0x1a
*/
const uint8_t libuna_codepage_windows_1252_unicode_to_byte_stream_base_0x2010[ 24 ] = {
0x1a, 0x1a, 0x1a, 0x96, 0x97, 0x1a, 0x1a, 0x1a,
0x91, 0x92, 0x82, 0x1a, 0x93, 0x94, 0x84, 0x1a,
0x86, 0x87, 0x95, 0x1a, 0x1a, 0x1a, 0x85, 0x1a
};
/* Copies an Unicode character from a Windows 1252 encoded byte stream
* Returns 1 if successful or -1 on error
*/
int libuna_codepage_windows_1252_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_windows_1252_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 )
|| ( byte_stream_character >= 0xa0 ) )
{
safe_unicode_character = byte_stream_character;
}
else
{
byte_stream_character -= 0x80;
safe_unicode_character = libuna_codepage_windows_1252_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 Windows 1252 encoded byte stream
* Returns 1 if successful or -1 on error
*/
int libuna_codepage_windows_1252_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_windows_1252_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 < 0x0100 ) )
{
byte_stream_value = (uint16_t) unicode_character;
}
else if( ( unicode_character >= 0x2010 )
&& ( unicode_character < 0x2028 ) )
{
unicode_character -= 0x2010;
byte_stream_value = libuna_codepage_windows_1252_unicode_to_byte_stream_base_0x2010[ unicode_character ];
}
else switch( unicode_character )
{
case 0x0152:
byte_stream_value = 0x8c;
break;
case 0x0153:
byte_stream_value = 0x9c;
break;
case 0x0160:
byte_stream_value = 0x8a;
break;
case 0x0161:
byte_stream_value = 0x9a;
break;
case 0x0178:
byte_stream_value = 0x9f;
break;
case 0x017d:
byte_stream_value = 0x8e;
break;
case 0x017e:
byte_stream_value = 0x9e;
break;
case 0x0192:
byte_stream_value = 0x83;
break;
case 0x02c6:
byte_stream_value = 0x88;
break;
case 0x02dc:
byte_stream_value = 0x98;
break;
case 0x2030:
byte_stream_value = 0x89;
break;
case 0x2039:
byte_stream_value = 0x8b;
break;
case 0x203a:
byte_stream_value = 0x9b;
break;
case 0x20ac:
byte_stream_value = 0x80;
break;
case 0x2122:
byte_stream_value = 0x99;
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 );
}
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