libraries/iconv_wrapper.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @version $Id$
   6  * @package phpMyAdmin
   7  */
   8 if (! defined('PHPMYADMIN')) {
   9     exit;
  10 }
  11
  12 /**
  13  *
  14  */
  15 # GNU iconv code set to IBM AIX libiconv code set table
  16 # Keys of this table should be in lowercase, and searches should be performed using lowercase!
  17 $gnu_iconv_to_aix_iconv_codepage_map = array (
  18     // "iso-8859-[1-9]" --> "ISO8859-[1-9]" according to http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/libs/basetrf2/setlocale.htm
  19     'iso-8859-1' => 'ISO8859-1',
  20     'iso-8859-2' => 'ISO8859-2',
  21     'iso-8859-3' => 'ISO8859-3',
  22     'iso-8859-4' => 'ISO8859-4',
  23     'iso-8859-5' => 'ISO8859-5',
  24     'iso-8859-6' => 'ISO8859-6',
  25     'iso-8859-7' => 'ISO8859-7',
  26     'iso-8859-8' => 'ISO8859-8',
  27     'iso-8859-9' => 'ISO8859-9',
  28
  29     // "big5" --> "IBM-eucTW" according to http://kadesh.cepba.upc.es/mancpp/classref/ref/ITranscoder_DSC.htm
  30     'big5' => 'IBM-eucTW',
  31
  32     // Other mappings corresponding to the phpMyAdmin dropdown box when using the AllowAnywhereRecoding feature
  33     'euc-jp' => 'IBM-eucJP',
  34     'koi8-r' => 'IBM-eucKR',
  35     'ks_c_5601-1987' => 'KSC5601.1987-0',
  36     'tis-620' => 'TIS-620',
  37     'utf-8' => 'UTF-8'
  38 );
  39
  40 /**
  41  * Wrapper around IBM AIX iconv(), whose character set naming differs
  42  * from the GNU version of iconv().
  43  *
  44  * @param   string   input character set
  45  * @param   string   output character set
  46  * @param   string   the string to convert
  47  *
  48  * @return  mixed    converted string or FALSE on failure
  49  *
  50  * @access  public
  51  *
  52  * @author  bwiberg  Björn Wiberg <Bjorn.Wiberg@its.uu.se>
  53  */
  54 function PMA_aix_iconv_wrapper($in_charset, $out_charset, $str) {
  55
  56     global $gnu_iconv_to_aix_iconv_codepage_map;
  57
  58     // Check for transliteration argument at the end of output character set name
  59     $translit_search = strpos(strtolower($out_charset), '//translit');
  60     $using_translit = (!($translit_search === FALSE));
  61
  62     // Extract "plain" output character set name (without any transliteration argument)
  63     $out_charset_plain = ($using_translit ? substr($out_charset, 0, $translit_search) : $out_charset);
  64
  65     // Transform name of input character set (if found)
  66     if (array_key_exists(strtolower($in_charset), $gnu_iconv_to_aix_iconv_codepage_map)) {
  67         $in_charset = $gnu_iconv_to_aix_iconv_codepage_map[strtolower($in_charset)];
  68     }
  69
  70     // Transform name of "plain" output character set (if found)
  71     if (array_key_exists(strtolower($out_charset_plain), $gnu_iconv_to_aix_iconv_codepage_map)) {
  72         $out_charset_plain = $gnu_iconv_to_aix_iconv_codepage_map[strtolower($out_charset_plain)];
  73     }
  74
  75     // Add transliteration argument again (exactly as specified by user) if used
  76     // Build the output character set name that we will use
  77     $out_charset = ($using_translit ? $out_charset_plain . substr($out_charset, $translit_search) : $out_charset_plain);
  78
  79     // NOTE: Transliteration not supported; we will use the "plain" output character set name
  80     $out_charset = $out_charset_plain;
  81
  82     // Call iconv() with the possibly modified parameters
  83     $result = iconv($in_charset, $out_charset, $str);
  84     return $result;
  85 } //  end of the "PMA_aix_iconv_wrapper()" function
  86
  87 ?>