libraries/iconv_wrapper.lib.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5 # GNU iconv code set to IBM AIX libiconv code set table
   6 # Keys of this table should be in lowercase, and searches should be performed using lowercase!
   7 $gnu_iconv_to_aix_iconv_codepage_map = array (
   8     // "iso-8859-[1-9]" --> "ISO8859-[1-9]" according to http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/libs/basetrf2/setlocale.htm
   9     'iso-8859-1' => 'ISO8859-1',
  10     'iso-8859-2' => 'ISO8859-2',
  11     'iso-8859-3' => 'ISO8859-3',
  12     'iso-8859-4' => 'ISO8859-4',
  13     'iso-8859-5' => 'ISO8859-5',
  14     'iso-8859-6' => 'ISO8859-6',
  15     'iso-8859-7' => 'ISO8859-7',
  16     'iso-8859-8' => 'ISO8859-8',
  17     'iso-8859-9' => 'ISO8859-9',
  18
  19     // "big5" --> "IBM-eucTW" according to http://kadesh.cepba.upc.es/mancpp/classref/ref/ITranscoder_DSC.htm
  20     'big5' => 'IBM-eucTW',
  21
  22     // Other mappings corresponding to the phpMyAdmin dropdown box when using the AllowAnywhereRecoding feature
  23     'euc-jp' => 'IBM-eucJP',
  24     'koi8-r' => 'IBM-eucKR',
  25     'ks_c_5601-1987' => 'KSC5601.1987-0',
  26     'tis-620' => 'TIS-620',
  27     'utf-8' => 'UTF-8'
  28 );
  29
  30 /**
  31  * Wrapper around IBM AIX iconv(), whose character set naming differs
  32  * from the GNU version of iconv().
  33  *
  34  * @param   string   input character set
  35  * @param   string   output character set
  36  * @param   string   the string to convert
  37  *
  38  * @return  mixed    converted string or FALSE on failure
  39  *
  40  * @access  public
  41  *
  42  * @author  bwiberg  Björn Wiberg <Bjorn.Wiberg@its.uu.se>
  43  */
  44 function PMA_aix_iconv_wrapper($in_charset, $out_charset, $str) {
  45
  46     global $gnu_iconv_to_aix_iconv_codepage_map;
  47
  48     // Check for transliteration argument at the end of output character set name
  49     $translit_search = strpos(strtolower($out_charset), '//translit');
  50     $using_translit = (!($translit_search === FALSE));
  51
  52     // Extract "plain" output character set name (without any transliteration argument)
  53     $out_charset_plain = ( $using_translit ? substr($out_charset, 0, $translit_search) : $out_charset );
  54
  55     // Transform name of input character set (if found)
  56     if (array_key_exists(strtolower($in_charset), $gnu_iconv_to_aix_iconv_codepage_map)) {
  57         $in_charset = $gnu_iconv_to_aix_iconv_codepage_map[strtolower($in_charset)];
  58     }
  59
  60     // Transform name of "plain" output character set (if found)
  61     if (array_key_exists(strtolower($out_charset_plain), $gnu_iconv_to_aix_iconv_codepage_map)) {
  62         $out_charset_plain = $gnu_iconv_to_aix_iconv_codepage_map[strtolower($out_charset_plain)];
  63     }
  64
  65     // Add transliteration argument again (exactly as specified by user) if used
  66     // Build the output character set name that we will use
  67     $out_charset = ( $using_translit ? $out_charset_plain . substr($out_charset, $translit_search) : $out_charset_plain );
  68
  69     // NOTE: Transliteration not supported; we will use the "plain" output character set name
  70     $out_charset = $out_charset_plain;
  71
  72     // Call iconv() with the possibly modified parameters
  73     $result = iconv($in_charset, $out_charset, $str);
  74     return $result;
  75 } //  end of the "PMA_aix_iconv_wrapper()" function
  76
  77 ?>