Adding crop()

git-svn-id: https://svn.typo3.org/TYPO3v4/Core/trunk@205 709f56b5-9817-0410-a4d7-c38de5d9e867

diff --git a/t3lib/class.t3lib_cs.php b/t3lib/class.t3lib_cs.php
index 5ab49bf..386d2ec 100755 (executable)
--- a/t3lib/class.t3lib_cs.php
+++ b/t3lib/class.t3lib_cs.php
@@ -140,6 +140,7 @@ class t3lib_cs {
        var $eucBasedSets=array(
                'gb2312'=>1,    // Chinese, simplified.
                'big5'=>1,      // Chinese, traditional.
+               'shift_jis'=>1, // Japanes - WARNING: Shift-JIS includes half-width katakana single-bytes characters above 0x80!
        );
 
                // see  http://developer.apple.com/documentation/macos8/TextIntlSvcs/TextEncodingConversionManager/TEC1.5/TEC.b0.html
@@ -197,6 +198,7 @@ class t3lib_cs {
                'winbaltrim' => 'windows-1257',
                'koi-8ru' => 'koi-8r',
                'koi8r' => 'koi-8r',
+               'cp878' => 'koi-8r',
                'mac' => 'macRoman',
                'macintosh' => 'macRoman',
                'euc-cn' => 'gb2312',
@@ -834,8 +836,6 @@ class t3lib_cs {
                        return mb_strcut($string,0,$len,$charset);
                } elseif ($charset == 'utf-8')  {
                        return $this->utf8_strtrunc($string);
-               } elseif ($charset == 'shift_jis')      {
-                       return $this->euc_strtrunc($string,'shift_jis');
                } elseif ($this->eucBasedSets[$charset])        {
                        return $this->euc_strtrunc($string,$charset);
                } elseif ($this->twoByteSets[$charset]) {
@@ -858,7 +858,6 @@ class t3lib_cs {
         * @return      string          the substring
         * @see substr(), mb_substr()
         * @author      Martin Kutschker <martin.t.kutschker@blackbox.net>
-        * @bug
         */
        function substr($charset,$string,$start,$len=null)      {
                if ($len===0)   return '';
@@ -876,8 +875,6 @@ class t3lib_cs {
                        else    return mb_substr($string,$start,$len,'utf-8');
                } elseif ($charset == 'utf-8')  {
                        return $this->utf8_substr($string,$start,$len);
-               } elseif ($charset == 'shift_jis')      {
-                       return $this->euc_substr($string,$start,'shift_jis',$len);
                } elseif ($this->eucBasedSets[$charset])        {
                        return $this->euc_substr($string,$start,$charset,$len);
                } elseif ($this->twoByteSets[$charset]) {
@@ -890,6 +887,50 @@ class t3lib_cs {
                return substr($string,$start,$len);
        }
 
+       /**
+        * Truncates a string and pre-/appends a string.
+        *
+        * @param       string          the character set
+        * @param       string          character string
+        * @param       int             length (in characters)
+        * @param       string          crop signifier
+        * @return      string          the shortened string
+        * @see substr(), mb_strimwidth()
+        * @author      Martin Kutschker <martin.t.kutschker@blackbox.net>
+        */     
+       function crop($charset,$string,$len,$crop='')   {
+               if ($len == 0)  return $crop;
+
+               if ($charset == 'utf-8')        {
+                       $i = $this->utf8_char2byte_pos($string,$len);
+               } elseif ($this->eucBasedSets[$charset])        {
+                       $i = $this->euc_char2byte_pos($string,$len,$charset);           
+               } else {
+                       if ($len > 0)   {
+                               $i = $len;
+                       } else {
+                               $i = strlen($string)+$len;
+                               if ($i<=0)      $i = false;
+                       }
+               }
+
+               if ($i === false)       {       // $len outside actual string length
+                       return $string;
+               } else  {
+                       if ($len > 0)   {
+                               if ($string{$i+1})      {
+                                       return substr($string,0,$i).$crop;
+                               }
+                       } else {
+                               if ($string{$i-1})      {
+                                       return $crop.substr($string,$i);
+                               }
+                       }
+               }
+
+               return $string;
+       }
+
        /**
         * Counts the number of characters.
         *
@@ -904,8 +945,6 @@ class t3lib_cs {
                        return mb_strlen($string,$charset);
                } elseif ($charset == 'utf-8')  {
                        return $this->utf8_strlen($string);
-               } elseif ($charset == 'shift_jis')      {
-                       return $this->euc_strlen($string,'shift_jis');
                } elseif ($this->eucBasedSets[$charset])        {
                        return $this->euc_strlen($string,$charset);
                } elseif ($this->twoByteSets[$charset]) {
@@ -938,8 +977,6 @@ class t3lib_cs {
                        }
                } elseif ($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);
                }