libraries/iconv_wrapper.lib.php

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