phpmyadmin/libraries/iconv_wrapper.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Iconv wrapper for AIX
   5  *
   6  * @package PhpMyAdmin
   7  */
   8 if (! defined('PHPMYADMIN')) {
   9     exit;
  10 }
  11
  12 /**
  13  * GNU iconv code set to IBM AIX libiconv code set table
  14  * Keys of this table should be in lowercase,
  15  * and searches should be performed using lowercase!
  16  */
  17 $gnu_iconv_to_aix_iconv_codepage_map = array (
  18     // "iso-8859-[1-9]" --> "ISO8859-[1-9]" according to
  19     // http://publibn.boulder.ibm.com/doc_link/en_US/
  20     //     a_doc_lib/libs/basetrf2/setlocale.htm
  21     'iso-8859-1' => 'ISO8859-1',
  22     'iso-8859-2' => 'ISO8859-2',
  23     'iso-8859-3' => 'ISO8859-3',
  24     'iso-8859-4' => 'ISO8859-4',
  25     'iso-8859-5' => 'ISO8859-5',
  26     'iso-8859-6' => 'ISO8859-6',
  27     'iso-8859-7' => 'ISO8859-7',
  28     'iso-8859-8' => 'ISO8859-8',
  29     'iso-8859-9' => 'ISO8859-9',
  30
  31     // "big5" --> "IBM-eucTW" according to
  32     // http://kadesh.cepba.upc.es/mancpp/classref/ref/ITranscoder_DSC.htm
  33     'big5' => 'IBM-eucTW',
  34
  35     // Other mappings corresponding to the phpMyAdmin dropdown box when using the
  36     // charset conversion feature
  37     'euc-jp' => 'IBM-eucJP',
  38     'koi8-r' => 'IBM-eucKR',
  39     'ks_c_5601-1987' => 'KSC5601.1987-0',
  40     'tis-620' => 'TIS-620',
  41     'utf-8' => 'UTF-8'
  42 );
  43
  44 /**
  45  * Wrapper around IBM AIX iconv(), whose character set naming differs
  46  * from the GNU version of iconv().
  47  *
  48  * @param string $in_charset  input character set
  49  * @param string $out_charset output character set
  50  * @param string $str         the string to convert
  51  *
  52  * @return mixed    converted string or false on failure
  53  *
  54  * @access  public
  55  *
  56  */
  57 function PMA_convertAIXIconv($in_charset, $out_charset, $str)
  58 {
  59     list($in_charset, $out_charset) = PMA_convertAIXMapCharsets(
  60         $in_charset, $out_charset
  61     );
  62     // Call iconv() with the possibly modified parameters
  63     return iconv($in_charset, $out_charset, $str);
  64 } //  end of the "PMA_convertAIXIconv()" function
  65
  66 /**
  67  * Maps input and output character set names to corresponding AIX ones
  68  *
  69  * @param string $in_charset  input character set
  70  * @param string $out_charset output character set
  71  *
  72  * @return array array of mapped input and output character set names
  73  */
  74 function PMA_convertAIXMapCharsets($in_charset, $out_charset)
  75 {
  76     global $gnu_iconv_to_aix_iconv_codepage_map;
  77
  78     // Check for transliteration argument at the end of output character set name
  79     $translit_search = strpos(strtolower($out_charset), '//translit');
  80     $using_translit = (!($translit_search === false));
  81
  82     // Extract "plain" output character set name
  83     // (without any transliteration argument)
  84     $out_charset_plain = ($using_translit
  85         ? substr($out_charset, 0, $translit_search)
  86         : $out_charset);
  87
  88     // Transform name of input character set (if found)
  89     $in_charset_exisits = array_key_exists(
  90         strtolower($in_charset),
  91         $gnu_iconv_to_aix_iconv_codepage_map
  92     );
  93     if ($in_charset_exisits) {
  94         $in_charset = $gnu_iconv_to_aix_iconv_codepage_map[strtolower($in_charset)];
  95     }
  96
  97     // Transform name of "plain" output character set (if found)
  98     $out_charset_plain_exists = array_key_exists(
  99         strtolower($out_charset_plain),
 100         $gnu_iconv_to_aix_iconv_codepage_map
 101     );
 102     if ($out_charset_plain_exists) {
 103         $out_charset_plain = $gnu_iconv_to_aix_iconv_codepage_map[
 104             strtolower($out_charset_plain)];
 105     }
 106
 107     // Add transliteration argument again (exactly as specified by user) if used
 108     // Build the output character set name that we will use
 109     $out_charset = ($using_translit
 110         ? $out_charset_plain . substr($out_charset, $translit_search)
 111         : $out_charset_plain);
 112
 113     // NOTE: Transliteration not supported; we will use the "plain"
 114     // output character set name
 115     $out_charset = $out_charset_plain;
 116
 117     return array($in_charset, $out_charset);
 118 }
 119
 120 ?>