1  /* FriBidi
       2   * fribidi-char-sets-iso8859-8.c - ISO8859-8 character set conversion routines
       3   *
       4   * Authors:
       5   *   Behdad Esfahbod, 2001, 2002, 2004
       6   *   Dov Grobgeld, 1999, 2000
       7   *
       8   * Copyright (C) 2004 Sharif FarsiWeb, Inc
       9   * Copyright (C) 2001,2002 Behdad Esfahbod
      10   * Copyright (C) 1999,2000 Dov Grobgeld
      11   * 
      12   * This library is free software; you can redistribute it and/or
      13   * modify it under the terms of the GNU Lesser General Public
      14   * License as published by the Free Software Foundation; either
      15   * version 2.1 of the License, or (at your option) any later version.
      16   * 
      17   * This library is distributed in the hope that it will be useful,
      18   * but WITHOUT ANY WARRANTY; without even the implied warranty of
      19   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      20   * Lesser General Public License for more details.
      21   * 
      22   * You should have received a copy of the GNU Lesser General Public License
      23   * along with this library, in a file named COPYING; if not, write to the
      24   * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
      25   * Boston, MA 02110-1301, USA
      26   * 
      27   * For licensing issues, contact <fribidi.license@gmail.com>.
      28   */
      29  
      30  #include <common.h>
      31  
      32  #include <fribidi-char-sets-iso8859-8.h>
      33  
      34  #include <fribidi-unicode.h>
      35  
      36  /* The following are proposed extensions to ISO8859-8. */
      37  #define ISO_8859_8_LRM		0xFD
      38  #define ISO_8859_8_RLM		0xFE
      39  #define ISO_8859_8_LRE		0xFB
      40  #define ISO_8859_8_RLE		0xFC
      41  #define ISO_8859_8_PDF		0xDD
      42  #define ISO_8859_8_LRO		0xDB
      43  #define ISO_8859_8_RLO		0xDC
      44  #define ISO_ALEF		0xE0
      45  #define ISO_TAV			0xFA
      46  
      47  #define UNI_ALEF		0x05D0
      48  #define UNI_TAV			0x05EA
      49  
      50  FriBidiChar
      51  fribidi_iso8859_8_to_unicode_c (
      52    /* input */
      53    char sch
      54  )
      55  {
      56    register unsigned char ch = (unsigned char) sch;
      57    if (ch < ISO_8859_8_LRO)
      58      return ch;
      59    else if (ch >= ISO_ALEF && ch <= ISO_TAV)
      60      return ch - ISO_ALEF + UNI_ALEF;
      61    switch (ch)
      62      {
      63      case ISO_8859_8_RLM:
      64        return FRIBIDI_CHAR_RLM;
      65      case ISO_8859_8_LRM:
      66        return FRIBIDI_CHAR_LRM;
      67      case ISO_8859_8_RLO:
      68        return FRIBIDI_CHAR_RLO;
      69      case ISO_8859_8_LRO:
      70        return FRIBIDI_CHAR_LRO;
      71      case ISO_8859_8_RLE:
      72        return FRIBIDI_CHAR_RLE;
      73      case ISO_8859_8_LRE:
      74        return FRIBIDI_CHAR_LRE;
      75      case ISO_8859_8_PDF:
      76        return FRIBIDI_CHAR_PDF;
      77      default:
      78        return '?';
      79      }
      80  }
      81  
      82  char
      83  fribidi_unicode_to_iso8859_8_c (
      84    /* input */
      85    FriBidiChar uch
      86  )
      87  {
      88    if (uch < 128)
      89      return (char) uch;
      90    if (uch >= UNI_ALEF && uch <= UNI_TAV)
      91      return (char) (uch - UNI_ALEF + ISO_ALEF);
      92    switch (uch)
      93      {
      94      case FRIBIDI_CHAR_RLM:
      95        return (char) ISO_8859_8_RLM;
      96      case FRIBIDI_CHAR_LRM:
      97        return (char) ISO_8859_8_LRM;
      98      case FRIBIDI_CHAR_RLO:
      99        return (char) ISO_8859_8_RLO;
     100      case FRIBIDI_CHAR_LRO:
     101        return (char) ISO_8859_8_LRO;
     102      case FRIBIDI_CHAR_RLE:
     103        return (char) ISO_8859_8_RLE;
     104      case FRIBIDI_CHAR_LRE:
     105        return (char) ISO_8859_8_LRE;
     106      case FRIBIDI_CHAR_PDF:
     107        return (char) ISO_8859_8_PDF;
     108      }
     109    return '?';
     110  }
     111  
     112  /* Editor directions:
     113   * vim:textwidth=78:tabstop=8:shiftwidth=2:autoindent:cindent
     114   */