/*

 * MacSymbol codepage 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_mac_symbol.h"

#include "libuna_libcerror.h"

#include "libuna_types.h"

/* Extended ASCII to Unicode character lookup table for the MacSymbol codepage

 * Unknown are filled with the Unicode replacement character 0xfffd

 */

const uint16_t libuna_codepage_mac_symbol_byte_stream_to_unicode_base_0x20[ 224 ] = {

  0x0020, 0x0021, 0x2200, 0x0023, 0x2203, 0x0025, 0x0026, 0x220d,

  0x0028, 0x0029, 0x2217, 0x002b, 0x002c, 0x2212, 0x002e, 0x002f,

  0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,

  0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,

  0x2245, 0x0391, 0x0392, 0x03a7, 0x0394, 0x0395, 0x03a6, 0x0393,

  0x0397, 0x0399, 0x03d1, 0x039a, 0x039b, 0x039c, 0x039d, 0x039f,

  0x03a0, 0x0398, 0x03a1, 0x03a3, 0x03a4, 0x03a5, 0x03c2, 0x03a9,

  0x039e, 0x03a8, 0x0396, 0x005b, 0x2234, 0x005d, 0x22a5, 0x005f,

  0xf8e5, 0x03b1, 0x03b2, 0x03c7, 0x03b4, 0x03b5, 0x03c6, 0x03b3,

  0x03b7, 0x03b9, 0x03d5, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03bf,

  0x03c0, 0x03b8, 0x03c1, 0x03c3, 0x03c4, 0x03c5, 0x03d6, 0x03c9,

  0x03be, 0x03c8, 0x03b6, 0x007b, 0x007c, 0x007d, 0x223c, 0x007f,

  0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,

  0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,

  0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,

  0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,

  0x20ac, 0x03d2, 0x2032, 0x2264, 0x2044, 0x221e, 0x0192, 0x2663,

  0x2666, 0x2665, 0x2660, 0x2194, 0x2190, 0x2191, 0x2192, 0x2193,

  0x00b0, 0x00b1, 0x2033, 0x2265, 0x00d7, 0x221d, 0x2202, 0x2022,

  0x00f7, 0x2260, 0x2261, 0x2248, 0x2026, 0x23d0, 0x23af, 0x21b5,

  0x2135, 0x2111, 0x211c, 0x2118, 0x2297, 0x2295, 0x2205, 0x2229,

  0x222a, 0x2283, 0x2287, 0x2284, 0x2282, 0x2286, 0x2208, 0x2209,

  0x2220, 0x2207, 0x00ae, 0x00a9, 0x2122, 0x220f, 0x221a, 0x22c5,

  0x00ac, 0x2227, 0x2228, 0x21d4, 0x21d0, 0x21d1, 0x21d2, 0x21d3,

  0x25ca, 0x3008, 0x00ae, 0x00a9, 0x2122, 0x2211, 0x239b, 0x239c,

  0x239d, 0x23a1, 0x23a2, 0x23a3, 0x23a7, 0x23a8, 0x23a9, 0x23aa,

  0xf8ff, 0x3009, 0x222b, 0x2320, 0x23ae, 0x2321, 0x239e, 0x239f,

  0x23a0, 0x23a4, 0x23a5, 0x23a6, 0x23ab, 0x23ac, 0x23ad, 0xfffd

};

/* Unicode to ASCII character lookup tables for the MacSymbol codepage

 * Unknown are filled with the ASCII replacement character 0x1a

 */

const uint8_t libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x0390[ 72 ] = {

  0x1a, 0x41, 0x42, 0x47, 0x44, 0x45, 0x5a, 0x48,

  0x51, 0x49, 0x4b, 0x4c, 0x4d, 0x4e, 0x58, 0x4f,

  0x50, 0x52, 0x1a, 0x53, 0x54, 0x55, 0x46, 0x43,

  0x59, 0x57, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,

  0x1a, 0x61, 0x62, 0x67, 0x64, 0x65, 0x7a, 0x68,

  0x71, 0x69, 0x6b, 0x6c, 0x6d, 0x6e, 0x78, 0x6f,

  0x70, 0x72, 0x56, 0x73, 0x74, 0x75, 0x66, 0x63,

  0x79, 0x77, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,

  0x1a, 0x4a, 0xa1, 0x1a, 0x1a, 0x6a, 0x76, 0x1a

};

const uint8_t libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x2200[ 80 ] = {

  0x22, 0x1a, 0xb6, 0x24, 0x1a, 0xc6, 0x1a, 0xd1,

  0xce, 0xcf, 0x1a, 0x1a, 0x1a, 0x27, 0x1a, 0xd5,

  0x1a, 0xe5, 0x2d, 0x1a, 0x1a, 0x1a, 0x1a, 0x2a,

  0x1a, 0x1a, 0xd6, 0x1a, 0x1a, 0xb5, 0xa5, 0x1a,

  0xd0, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xd9,

  0xda, 0xc7, 0xc8, 0xf2, 0x1a, 0x1a, 0x1a, 0x1a,

  0x1a, 0x1a, 0x1a, 0x1a, 0x5c, 0x1a, 0x1a, 0x1a,

  0x1a, 0x1a, 0x1a, 0x1a, 0x7e, 0x1a, 0x1a, 0x1a,

  0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x40, 0x1a, 0x1a,

  0xbb, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a

};

const uint8_t libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x2280[ 40 ] = {

  0x1a, 0x1a, 0xcc, 0xc9, 0xcb, 0x1a, 0xcd, 0xca,

  0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,

  0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0xc5, 0x1a, 0xc4,

  0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,

  0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x5e, 0x1a, 0x1a

};

const uint8_t libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x2398[ 24 ] = {

  0x1a, 0x1a, 0x1a, 0xe6, 0xe7, 0xe8, 0xf6, 0xf7,

  0xf8, 0xe9, 0xea, 0xeb, 0xf9, 0xfa, 0xfb, 0xec,

  0xed, 0xee, 0xef, 0xfc, 0xfd, 0xfe, 0xf4, 0xbe

};

/* Determines the size of a MacSymbol encoded byte stream from an Unicode character

 * Adds the size to the byte stream character size value

 * Returns 1 if successful, 0 if the byte stream character is valid but not supported since it requires special handling or -1 on error

 */

int libuna_codepage_mac_symbol_unicode_character_size_to_byte_stream(

     libuna_unicode_character_t unicode_character,

     size_t *byte_stream_character_size,

     libcerror_error_t **error )

{

  static char *function = "libuna_codepage_mac_symbol_unicode_character_size_to_byte_stream";

  int result            = 0;

  if( byte_stream_character_size == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid byte stream character size.",

     function );

    return( -1 );

  }

  switch( unicode_character )

  {

    case 0x000000aeUL:

    case 0x000000a9UL:

    case 0x00002122UL:

      result = 0;

      break;

    default:

      *byte_stream_character_size += 1;

      result = 1;

      break;

  }

  return( result );

}

/* Copies an Unicode character from a MacSymbol encoded byte stream

 * Returns 1 if successful or -1 on error

 */

int libuna_codepage_mac_symbol_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_symbol_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_symbol_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 MacSymbol encoded byte stream

 * Returns 1 if successful or -1 on error

 */

int libuna_codepage_mac_symbol_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_symbol_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 <= 0x0021 )

   || ( unicode_character == 0x0023 )

   || ( unicode_character == 0x0025 )

   || ( unicode_character == 0x0026 )

   || ( unicode_character == 0x0028 )

   || ( unicode_character == 0x0029 )

   || ( unicode_character == 0x002b )

   || ( unicode_character == 0x002c )

   || ( ( unicode_character >= 0x002e )

    &&  ( unicode_character <= 0x003f ) )

   || ( unicode_character == 0x005b )

   || ( unicode_character == 0x005d )

   || ( unicode_character == 0x005f )

   || ( unicode_character == 0x007b )

   || ( unicode_character == 0x007c )

   || ( unicode_character == 0x007d )

   || ( unicode_character == 0x007f )

   || ( unicode_character == 0x00b0 )

   || ( unicode_character == 0x00b1 ) )

  {

    byte_stream_value = (uint16_t) unicode_character;

  }

  else if( ( unicode_character >= 0x0390 )

        && ( unicode_character < 0x03d8 ) )

  {

    unicode_character -= 0x0390;

    byte_stream_value = libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x0390[ unicode_character ];

  }

  else if( ( unicode_character >= 0x2200 )

        && ( unicode_character < 0x2250 ) )

  {

    unicode_character -= 0x2200;

    byte_stream_value = libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x2200[ unicode_character ];

  }

  else if( ( unicode_character >= 0x2280 )

        && ( unicode_character < 0x22a8 ) )

  {

    unicode_character -= 0x2280;

    byte_stream_value = libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x2280[ unicode_character ];

  }

  else if( ( unicode_character >= 0x2398 )

        && ( unicode_character < 0x23b0 ) )

  {

    unicode_character -= 0x2398;

    byte_stream_value = libuna_codepage_mac_symbol_unicode_to_byte_stream_base_0x2398[ unicode_character ];

  }

  else switch( unicode_character )

  {

    case 0x00a9:

      byte_stream_value = 0xd3;

      break;

    case 0x00ac:

      byte_stream_value = 0xd8;

      break;

    case 0x00ae:

      byte_stream_value = 0xd2;

      break;

    case 0x00d7:

      byte_stream_value = 0xb4;

      break;

    case 0x00f7:

      byte_stream_value = 0xb8;

      break;

    case 0x0192:

      byte_stream_value = 0xa6;

      break;

    case 0x2022:

      byte_stream_value = 0xb7;

      break;

    case 0x2026:

      byte_stream_value = 0xbc;

      break;

    case 0x2032:

      byte_stream_value = 0xa2;

      break;

    case 0x2033:

      byte_stream_value = 0xb2;

      break;

    case 0x2044:

      byte_stream_value = 0xa4;

      break;

    case 0x20ac:

      byte_stream_value = 0xa0;

      break;

    case 0x2111:

      byte_stream_value = 0xc1;

      break;

    case 0x2118:

      byte_stream_value = 0xc3;

      break;

    case 0x211c:

      byte_stream_value = 0xc2;

      break;

    case 0x2122:

      byte_stream_value = 0xd4;

      break;

    case 0x2135:

      byte_stream_value = 0xc0;

      break;

    case 0x2190:

      byte_stream_value = 0xac;

      break;

    case 0x2191:

      byte_stream_value = 0xad;

      break;

    case 0x2192:

      byte_stream_value = 0xae;

      break;

    case 0x2193:

      byte_stream_value = 0xaf;

      break;

    case 0x2194:

      byte_stream_value = 0xab;

      break;

    case 0x21b5:

      byte_stream_value = 0xbf;

      break;

    case 0x21d0:

      byte_stream_value = 0xdc;

      break;

    case 0x21d1:

      byte_stream_value = 0xdd;

      break;

    case 0x21d2:

      byte_stream_value = 0xde;

      break;

    case 0x21d3:

      byte_stream_value = 0xdf;

      break;

    case 0x21d4:

      byte_stream_value = 0xdb;

      break;

    case 0x2260:

      byte_stream_value = 0xb9;

      break;

    case 0x2261:

      byte_stream_value = 0xba;

      break;

    case 0x2264:

      byte_stream_value = 0xa3;

      break;

    case 0x2265:

      byte_stream_value = 0xb3;

      break;

    case 0x22c5:

      byte_stream_value = 0xd7;

      break;

    case 0x2320:

      byte_stream_value = 0xf3;

      break;

    case 0x2321:

      byte_stream_value = 0xf5;

      break;

    case 0x23d0:

      byte_stream_value = 0xbd;

      break;

    case 0x25ca:

      byte_stream_value = 0xe0;

      break;

    case 0x2660:

      byte_stream_value = 0xaa;

      break;

    case 0x2663:

      byte_stream_value = 0xa7;

      break;

    case 0x2665:

      byte_stream_value = 0xa9;

      break;

    case 0x2666:

      byte_stream_value = 0xa8;

      break;

    case 0x3008:

      byte_stream_value = 0xe1;

      break;

    case 0x3009:

      byte_stream_value = 0xf1;

      break;

    case 0xf8e5:

      byte_stream_value = 0x60;

      break;

    case 0xf8ff:

      byte_stream_value = 0xf0;

      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 );

}