Added case folding for EUC charsets.

git-svn-id: https://svn.typo3.org/TYPO3v4/Core/trunk@200 709f56b5-9817-0410-a4d7-c38de5d9e867

diff --git a/t3lib/class.t3lib_cs.php b/t3lib/class.t3lib_cs.php
index c093c53..daf18db 100755 (executable)
--- a/t3lib/class.t3lib_cs.php
+++ b/t3lib/class.t3lib_cs.php
@@ -939,14 +939,11 @@ class t3lib_cs {
                        }
                } elseif ($charset == 'utf-8')  {
                        return $this->utf8_conv_case($string,$case);
-               }
-/*
                } elseif ($charset == 'shift_jis')      {
                        return $this->euc_conv_case($string,$case,'shift_jis');
                } elseif ($this->eucBasedSets[$charset])        {
                        return $this->euc_conv_case($string,$case,$charset);
                }
-*/
 
                // treat everything else as single-byte encoding
                if (!$this->initCaseFolding($charset))  return $string; // do nothing
@@ -1161,7 +1158,7 @@ class t3lib_cs {
         * @param       string          conversion: 'toLower' or 'toUpper'
         * @return      string          the converted string
         * @author      Martin Kutschker <martin.t.kutschker@blackbox.net>
-        * @see strtolower()
+        * @see strtolower(), strtoupper(), mb_convert_case()
         */
        function utf8_conv_case($str,$case)     {
                if (!$this->initCaseFoldingUTF8())      return $str;    // do nothing
@@ -1335,6 +1332,49 @@ class t3lib_cs {
                return $i;
        }
 
+       /**
+        * Translates all characters of a string in the EUC charset family into their respective case values.
+        *
+        * @param       string          EUC multibyte character string
+        * @param       string          conversion: 'toLower' or 'toUpper'
+        * @param       string          the charset
+        * @return      string          the converted string
+        * @author      Martin Kutschker <martin.t.kutschker@blackbox.net>
+        * @see strtolower(), strtoupper(), mb_convert_case()
+        */
+       function euc_conv_case($str,$case,$charset)     {
+               if (!$this->initCaseFolding($charset))  return $str;    // do nothing
+
+               $sjis = ($charset == 'shift_jis');
+               $out = '';
+               $caseConv =& $this->caseFolding[$charset][$case];
+               for($i=0; $mbc=$str{$i}; $i++)  {
+                       $c = ord($str{$i});
+
+                       if ($sjis)      {
+                               if (($c >= 0x80 && $c < 0xA0) || ($c >= 0xE0))  {       // a double-byte char
+                                       $mbc = substr($str,$i,2);
+                                       $i++;
+                               }
+                       }
+                       else    {
+                               if ($c >= 0x80) {       // a double-byte char
+                                       $mbc = substr($str,$i,2);
+                                       $i++;
+                               }
+                       }
+
+                       $cc = $caseConv[$mbc];
+                       if ($cc)        {
+                               $out .= $cc;
+                       } else {
+                               $out .= $mbc;
+                       }
+               }
+
+               return $out;
+       }
+
 }
 
 if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/class.t3lib_cs.php'])       {