<?php
/********************************
OSBib:
A collection of PHP classes to create and manage bibliographic formatting for OS bibliography software 
using the OSBib standard.

Released through http://bibliophile.sourceforge.net under the GPL licence.
Do whatever you like with this -- some credit to the author(s) would be appreciated.

If you make improvements, please consider contacting the administrators at bibliophile.sourceforge.net 
so that your improvements can be added to the release package.

Mark Grimshaw 2005
http://bibliophile.sourceforge.net
********************************/
/*****
* UTF-8 class
*
*****/
class UTF8
{
// Constructor
	function UTF8()
	{
	  $this->loadVars();
	}

// Decode UTF-8 ONLY if the input has been UTF-8-encoded.
// Adapted from 'nospam' in the user contributions at:
// http://www.php.net/manual/en/function.utf8-decode.php
	function smartUtf8_decode($inStr)
	{
// Replace ? with a unique string
		$newStr = str_replace("?", "w0i0k0i0n0d0x", $inStr);
// Try the utf8_decode
		$newStr = $this->decodeUtf8($newStr);
// if it contains ? marks
		if(strpos($newStr, "?") !== false)
// Something went wrong, set newStr to the original string.
			$newStr = $inStr;
		else
// If not then all is well, put the ?-marks back where is belongs
			$newStr = str_replace("w0i0k0i0n0d0x", "?", $newStr);
		return $newStr;
	}
// UTF-8 encoding - PROPERLY decode UTF-8 as PHP's utf8_decode can't hack it.
// Freely borrowed from morris_hirsch at http://www.php.net/manual/en/function.utf8-decode.php
// bytes bits representation
// 1  7  0bbbbbbb
// 2  11  110bbbbb 10bbbbbb
// 3  16  1110bbbb 10bbbbbb 10bbbbbb
// 4  21  11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
// Each b represents a bit that can be used to store character data.

// input CANNOT have single byte upper half extended ascii codes
function decodeUtf8 ($utf8_string) {

  $out = "";
  $ns = strlen ($utf8_string);
  for ($nn = 0; $nn < $ns; $nn++) {
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);

//1 7 0bbbbbbb (127)

   if ($ii < 128) $out .= $ch;

//2 11 110bbbbb 10bbbbbb (2047)

   else if ($ii >>5 == 6) {
  $b1 = ($ii & 31);

  $nn++;
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);
  $b2 = ($ii & 63);

  $ii = ($b1 * 64) + $b2;

     $ent = sprintf ("&#%d;", $ii);
     $out .= $ent;
   }

//3 16 1110bbbb 10bbbbbb 10bbbbbb

   else if ($ii >>4 == 14) {
  $b1 = ($ii & 31);

  $nn++;
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);
  $b2 = ($ii & 63);

  $nn++;
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);
  $b3 = ($ii & 63);

  $ii = ((($b1 * 64) + $b2) * 64) + $b3;

     $ent = sprintf ("&#%d;", $ii);
     $out .= $ent;
   }

//4 21 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb

   else if ($ii >>3 == 30) {
  $b1 = ($ii & 31);

  $nn++;
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);
  $b2 = ($ii & 63);

  $nn++;
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);
  $b3 = ($ii & 63);

  $nn++;
   $ch = $utf8_string [$nn];
   $ii = ord ($ch);
  $b4 = ($ii & 63);

  $ii = ((((($b1 * 64) + $b2) * 64) + $b3) * 64) + $b4;

     $ent = sprintf ("&#%d;", $ii);
     $out .= $ent;
   }

  }
  return $out;
}
  function encodeUtf8($str) {
    preg_match_all("/&#([0-9]*?);/", $str, $unicode);
    foreach( $unicode[0] as $key => $value) {
      $str = preg_replace("/".$value."/", $this->code2utf8($unicode[1][$key]), $str);
    }
    return $str;		

}

  /**
   * This function returns any UTF-8 encoded text as a list of
   * Unicode values:
   *
   * @author Scott Michael Reynen <scott@randomchaos.com>
   * @link   http://www.randomchaos.com/document.php?source=php_and_unicode
   * @see    unicode_to_utf8()
   */
  function utf8_to_unicode( $str ) {
    $unicode = array();  
    $values = array();
    $lookingFor = 1;
    
    for ($i = 0; $i < strlen( $str ); $i++ ) {
      $thisValue = ord( $str[ $i ] );
      if ( $thisValue < 128 ) $unicode[] = $thisValue;
      else {
	if ( count( $values ) == 0 ) $lookingFor = ( $thisValue < 224 ) ? 2 : 3;
	$values[] = $thisValue;
	if ( count( $values ) == $lookingFor ) {
	  $number = ( $lookingFor == 3 ) ?
	    ( ( $values[0] % 16 ) * 4096 ) + ( ( $values[1] % 64 ) * 64 ) + ( $values[2] % 64 ):
	    ( ( $values[0] % 32 ) * 64 ) + ( $values[1] % 64 );
	  $unicode[] = $number;
	  $values = array();
	  $lookingFor = 1;
	}
      }
    }
    return $unicode;
  }
  
  /**
   * This function converts a Unicode array back to its UTF-8 representation
   *
   * @author Scott Michael Reynen <scott@randomchaos.com>
   * @link   http://www.randomchaos.com/document.php?source=php_and_unicode
   * @see    utf8_to_unicode()
   */
  function unicode_to_utf8( $str ) {
    $utf8 = '';
    foreach( $str as $unicode ) {
      if ( $unicode < 128 ) {
	$utf8.= chr( $unicode );
      } elseif ( $unicode < 2048 ) {
	$utf8.= chr( 192 +  ( ( $unicode - ( $unicode % 64 ) ) / 64 ) );
	$utf8.= chr( 128 + ( $unicode % 64 ) );
      } else {
	$utf8.= chr( 224 + ( ( $unicode - ( $unicode % 4096 ) ) / 4096 ) );
	$utf8.= chr( 128 + ( ( ( $unicode % 4096 ) - ( $unicode % 64 ) ) / 64 ) );
	$utf8.= chr( 128 + ( $unicode % 64 ) );
      }
    }
    return $utf8;
  }
  function code2utf8($num){
    if($num<128)return chr($num);
    if($num<2048)return chr(($num>>6)+192).chr(($num&63)+128);
    if($num<65536)return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
    if($num<2097152)return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128). chr(($num&63)+128);
    return '';
  }

  /**
   * This is a unicode aware replacement for strtolower()
   *
   * Uses mb_string extension if available
   *
   * @author Andreas Gohr <andi@splitbrain.org>
   * @see    strtolower()
   * @see    utf8_strtoupper()
   */  
  function utf8_strtolower($string){
  if(function_exists('mb_strtolower'))
    return mb_strtolower($string,'utf-8');

    $uni = $this->utf8_to_unicode($string); 
    $cnt = count($uni);
    for ($i=0; $i < $cnt; $i++){
      if(array_key_exists($uni[$i], $this->UTF8_UPPER_TO_LOWER) && $this->UTF8_UPPER_TO_LOWER[$uni[$i]]){
	$uni[$i] = $this->UTF8_UPPER_TO_LOWER[$uni[$i]];
      }
    }
    return $this->unicode_to_utf8($uni);
  }

  /**
   * This is a unicode aware replacement for strtoupper()
   *
   * Uses mb_string extension if available
   *
   * @author Andreas Gohr <andi@splitbrain.org>
   * @see    strtoupper()
   * @see    utf8_strtoupper()
   */
  function utf8_strtoupper($string){
  if(function_exists('mb_strtoupper'))
    return mb_strtoupper($string,'utf-8');

    $uni = $this->utf8_to_unicode($string);
    for ($i=0; $i < count($uni); $i++){
      if(array_key_exists($uni[$i], $this->UTF8_LOWER_TO_UPPER) && $this->UTF8_LOWER_TO_UPPER[$uni[$i]]){
	$uni[$i] = $this->UTF8_LOWER_TO_UPPER[$uni[$i]];
      }
    }
    return $this->unicode_to_utf8($uni);
  }
  /**
   * This is a unicode aware replacement for substr()
   *
   * Uses mb_string extension if available
   *
   * @author Andreas Gohr <andi@splitbrain.org>
   * @see    substr()
   */
  function utf8_substr($str, $start, $length=null){
    if (function_exists('mb_substr'))
      return mb_substr($str,$start,$length,'utf-8');
    
    $uni = $this->utf8_to_unicode($str);
    return $this->unicode_to_utf8(array_slice($uni,$start,$length));
  }
  /**
   * This is a unicode aware replacement for ucfirst()
   *
   * @author Andrea Rossato <arossato@istitutocolli.org>
   * @see    ucfirst()
   */

  function utf8_ucfirst($str) {
    $fc = $this->utf8_substr($str, 0, 1);
    return $this->utf8_strtoupper($fc) . $this->utf8_substr($str, 1, $this->utf8_strlen($str));
  }
  /**
   * This is a unicode aware replacement for strlen()
   *
   * Uses mb_string extension if available
   *
   * @author Andreas Gohr <andi@splitbrain.org>
   * @see    strlen()
   */
  function utf8_strlen($string){
    if(!defined('UTF8_NOMBSTRING') && function_exists('mb_strlen'))
      return mb_strlen($string,'utf-8');
    
    $uni = $this->utf8_to_unicode($string);
    return count($uni);
  }
  function utf8_htmlspecialchars ($str) {
    $str = str_replace("\"", "&quot;", $str);    
    $str = str_replace("<", "&lt;", $str);    
    $str = str_replace(">", "&gt;", $str);    
    $str = preg_replace("/&(?![a-zA-Z0-9#]+?;)/", "&amp;", $str);
    return $str;
  }



  function loadVars() {
    /**
     * UTF-8 Case lookup table
     *
     * This lookuptable defines the upper case letters to their correspponding
     * lower case letter in UTF-8
     *
     * @author Andreas Gohr <andi@splitbrain.org>
     */
    $this->UTF8_LOWER_TO_UPPER = array(
      0x00000061=>0x00000041, 0x00000062=>0x00000042, 0x00000063=>0x00000043, 0x00000064=>0x00000044, 
      0x00000065=>0x00000045, 0x00000066=>0x00000046, 0x00000067=>0x00000047, 0x00000068=>0x00000048, 
      0x00000069=>0x00000049, 0x0000006a=>0x0000004a, 0x0000006b=>0x0000004b, 0x0000006c=>0x0000004c, 
      0x0000006d=>0x0000004d, 0x0000006e=>0x0000004e, 0x0000006f=>0x0000004f, 0x00000070=>0x00000050, 
      0x00000071=>0x00000051, 0x00000072=>0x00000052, 0x00000073=>0x00000053, 0x00000074=>0x00000054, 
      0x00000075=>0x00000055, 0x00000076=>0x00000056, 0x00000077=>0x00000057, 0x00000078=>0x00000058, 
      0x00000079=>0x00000059, 0x0000007a=>0x0000005a, 0x000000b5=>0x0000039c, 0x000000e0=>0x000000c0, 
      0x000000e1=>0x000000c1, 0x000000e2=>0x000000c2, 0x000000e3=>0x000000c3, 0x000000e4=>0x000000c4, 
      0x000000e5=>0x000000c5, 0x000000e6=>0x000000c6, 0x000000e7=>0x000000c7, 0x000000e8=>0x000000c8, 
      0x000000e9=>0x000000c9, 0x000000ea=>0x000000ca, 0x000000eb=>0x000000cb, 0x000000ec=>0x000000cc, 
      0x000000ed=>0x000000cd, 0x000000ee=>0x000000ce, 0x000000ef=>0x000000cf, 0x000000f0=>0x000000d0, 
      0x000000f1=>0x000000d1, 0x000000f2=>0x000000d2, 0x000000f3=>0x000000d3, 0x000000f4=>0x000000d4, 
      0x000000f5=>0x000000d5, 0x000000f6=>0x000000d6, 0x000000f8=>0x000000d8, 0x000000f9=>0x000000d9, 
      0x000000fa=>0x000000da, 0x000000fb=>0x000000db, 0x000000fc=>0x000000dc, 0x000000fd=>0x000000dd, 
      0x000000fe=>0x000000de, 0x000000ff=>0x00000178, 0x00000101=>0x00000100, 0x00000103=>0x00000102, 
      0x00000105=>0x00000104, 0x00000107=>0x00000106, 0x00000109=>0x00000108, 0x0000010b=>0x0000010a, 
      0x0000010d=>0x0000010c, 0x0000010f=>0x0000010e, 0x00000111=>0x00000110, 0x00000113=>0x00000112, 
      0x00000115=>0x00000114, 0x00000117=>0x00000116, 0x00000119=>0x00000118, 0x0000011b=>0x0000011a, 
      0x0000011d=>0x0000011c, 0x0000011f=>0x0000011e, 0x00000121=>0x00000120, 0x00000123=>0x00000122, 
      0x00000125=>0x00000124, 0x00000127=>0x00000126, 0x00000129=>0x00000128, 0x0000012b=>0x0000012a, 
      0x0000012d=>0x0000012c, 0x0000012f=>0x0000012e, 0x00000131=>0x00000049, 0x00000133=>0x00000132, 
      0x00000135=>0x00000134, 0x00000137=>0x00000136, 0x0000013a=>0x00000139, 0x0000013c=>0x0000013b, 
      0x0000013e=>0x0000013d, 0x00000140=>0x0000013f, 0x00000142=>0x00000141, 0x00000144=>0x00000143, 
      0x00000146=>0x00000145, 0x00000148=>0x00000147, 0x0000014b=>0x0000014a, 0x0000014d=>0x0000014c, 
      0x0000014f=>0x0000014e, 0x00000151=>0x00000150, 0x00000153=>0x00000152, 0x00000155=>0x00000154, 
      0x00000157=>0x00000156, 0x00000159=>0x00000158, 0x0000015b=>0x0000015a, 0x0000015d=>0x0000015c, 
      0x0000015f=>0x0000015e, 0x00000161=>0x00000160, 0x00000163=>0x00000162, 0x00000165=>0x00000164, 
      0x00000167=>0x00000166, 0x00000169=>0x00000168, 0x0000016b=>0x0000016a, 0x0000016d=>0x0000016c, 
      0x0000016f=>0x0000016e, 0x00000171=>0x00000170, 0x00000173=>0x00000172, 0x00000175=>0x00000174, 
      0x00000177=>0x00000176, 0x0000017a=>0x00000179, 0x0000017c=>0x0000017b, 0x0000017e=>0x0000017d, 
      0x0000017f=>0x00000053, 0x00000183=>0x00000182, 0x00000185=>0x00000184, 0x00000188=>0x00000187, 
      0x0000018c=>0x0000018b, 0x00000192=>0x00000191, 0x00000195=>0x000001f6, 0x00000199=>0x00000198, 
      0x0000019e=>0x00000220, 0x000001a1=>0x000001a0, 0x000001a3=>0x000001a2, 0x000001a5=>0x000001a4, 
      0x000001a8=>0x000001a7, 0x000001ad=>0x000001ac, 0x000001b0=>0x000001af, 0x000001b4=>0x000001b3, 
      0x000001b6=>0x000001b5, 0x000001b9=>0x000001b8, 0x000001bd=>0x000001bc, 0x000001bf=>0x000001f7, 
      0x000001c6=>0x000001c4, 0x000001c9=>0x000001c7, 0x000001cc=>0x000001ca, 0x000001ce=>0x000001cd, 
      0x000001d0=>0x000001cf, 0x000001d2=>0x000001d1, 0x000001d4=>0x000001d3, 0x000001d6=>0x000001d5, 
      0x000001d8=>0x000001d7, 0x000001da=>0x000001d9, 0x000001dc=>0x000001db, 0x000001dd=>0x0000018e, 
      0x000001df=>0x000001de, 0x000001e1=>0x000001e0, 0x000001e3=>0x000001e2, 0x000001e5=>0x000001e4, 
      0x000001e7=>0x000001e6, 0x000001e9=>0x000001e8, 0x000001eb=>0x000001ea, 0x000001ed=>0x000001ec, 
      0x000001ef=>0x000001ee, 0x000001f3=>0x000001f1, 0x000001f5=>0x000001f4, 0x000001f9=>0x000001f8, 
      0x000001fb=>0x000001fa, 0x000001fd=>0x000001fc, 0x000001ff=>0x000001fe, 0x00000201=>0x00000200, 
      0x00000203=>0x00000202, 0x00000205=>0x00000204, 0x00000207=>0x00000206, 0x00000209=>0x00000208, 
      0x0000020b=>0x0000020a, 0x0000020d=>0x0000020c, 0x0000020f=>0x0000020e, 0x00000211=>0x00000210, 
      0x00000213=>0x00000212, 0x00000215=>0x00000214, 0x00000217=>0x00000216, 0x00000219=>0x00000218, 
      0x0000021b=>0x0000021a, 0x0000021d=>0x0000021c, 0x0000021f=>0x0000021e, 0x00000223=>0x00000222, 
      0x00000225=>0x00000224, 0x00000227=>0x00000226, 0x00000229=>0x00000228, 0x0000022b=>0x0000022a, 
      0x0000022d=>0x0000022c, 0x0000022f=>0x0000022e, 0x00000231=>0x00000230, 0x00000233=>0x00000232, 
      0x00000253=>0x00000181, 0x00000254=>0x00000186, 0x00000256=>0x00000189, 0x00000257=>0x0000018a, 
      0x00000259=>0x0000018f, 0x0000025b=>0x00000190, 0x00000260=>0x00000193, 0x00000263=>0x00000194, 
      0x00000268=>0x00000197, 0x00000269=>0x00000196, 0x0000026f=>0x0000019c, 0x00000272=>0x0000019d, 
      0x00000275=>0x0000019f, 0x00000280=>0x000001a6, 0x00000283=>0x000001a9, 0x00000288=>0x000001ae, 
      0x0000028a=>0x000001b1, 0x0000028b=>0x000001b2, 0x00000292=>0x000001b7, 0x00000345=>0x00000399, 
      0x000003ac=>0x00000386, 0x000003ad=>0x00000388, 0x000003ae=>0x00000389, 0x000003af=>0x0000038a, 
      0x000003b1=>0x00000391, 0x000003b2=>0x00000392, 0x000003b3=>0x00000393, 0x000003b4=>0x00000394, 
      0x000003b5=>0x00000395, 0x000003b6=>0x00000396, 0x000003b7=>0x00000397, 0x000003b8=>0x00000398, 
      0x000003b9=>0x00000399, 0x000003ba=>0x0000039a, 0x000003bb=>0x0000039b, 0x000003bc=>0x0000039c, 
      0x000003bd=>0x0000039d, 0x000003be=>0x0000039e, 0x000003bf=>0x0000039f, 0x000003c0=>0x000003a0, 
      0x000003c1=>0x000003a1, 0x000003c2=>0x000003a3, 0x000003c3=>0x000003a3, 0x000003c4=>0x000003a4, 
      0x000003c5=>0x000003a5, 0x000003c6=>0x000003a6, 0x000003c7=>0x000003a7, 0x000003c8=>0x000003a8, 
      0x000003c9=>0x000003a9, 0x000003ca=>0x000003aa, 0x000003cb=>0x000003ab, 0x000003cc=>0x0000038c, 
      0x000003cd=>0x0000038e, 0x000003ce=>0x0000038f, 0x000003d0=>0x00000392, 0x000003d1=>0x00000398, 
      0x000003d5=>0x000003a6, 0x000003d6=>0x000003a0, 0x000003d9=>0x000003d8, 0x000003db=>0x000003da, 
      0x000003dd=>0x000003dc, 0x000003df=>0x000003de, 0x000003e1=>0x000003e0, 0x000003e3=>0x000003e2, 
      0x000003e5=>0x000003e4, 0x000003e7=>0x000003e6, 0x000003e9=>0x000003e8, 0x000003eb=>0x000003ea, 
      0x000003ed=>0x000003ec, 0x000003ef=>0x000003ee, 0x000003f0=>0x0000039a, 0x000003f1=>0x000003a1, 
      0x000003f2=>0x000003a3, 0x000003f5=>0x00000395, 0x00000430=>0x00000410, 0x00000431=>0x00000411, 
      0x00000432=>0x00000412, 0x00000433=>0x00000413, 0x00000434=>0x00000414, 0x00000435=>0x00000415, 
      0x00000436=>0x00000416, 0x00000437=>0x00000417, 0x00000438=>0x00000418, 0x00000439=>0x00000419, 
      0x0000043a=>0x0000041a, 0x0000043b=>0x0000041b, 0x0000043c=>0x0000041c, 0x0000043d=>0x0000041d, 
      0x0000043e=>0x0000041e, 0x0000043f=>0x0000041f, 0x00000440=>0x00000420, 0x00000441=>0x00000421, 
      0x00000442=>0x00000422, 0x00000443=>0x00000423, 0x00000444=>0x00000424, 0x00000445=>0x00000425, 
      0x00000446=>0x00000426, 0x00000447=>0x00000427, 0x00000448=>0x00000428, 0x00000449=>0x00000429, 
      0x0000044a=>0x0000042a, 0x0000044b=>0x0000042b, 0x0000044c=>0x0000042c, 0x0000044d=>0x0000042d, 
      0x0000044e=>0x0000042e, 0x0000044f=>0x0000042f, 0x00000450=>0x00000400, 0x00000451=>0x00000401, 
      0x00000452=>0x00000402, 0x00000453=>0x00000403, 0x00000454=>0x00000404, 0x00000455=>0x00000405, 
      0x00000456=>0x00000406, 0x00000457=>0x00000407, 0x00000458=>0x00000408, 0x00000459=>0x00000409, 
      0x0000045a=>0x0000040a, 0x0000045b=>0x0000040b, 0x0000045c=>0x0000040c, 0x0000045d=>0x0000040d, 
      0x0000045e=>0x0000040e, 0x0000045f=>0x0000040f, 0x00000461=>0x00000460, 0x00000463=>0x00000462, 
      0x00000465=>0x00000464, 0x00000467=>0x00000466, 0x00000469=>0x00000468, 0x0000046b=>0x0000046a, 
      0x0000046d=>0x0000046c, 0x0000046f=>0x0000046e, 0x00000471=>0x00000470, 0x00000473=>0x00000472, 
      0x00000475=>0x00000474, 0x00000477=>0x00000476, 0x00000479=>0x00000478, 0x0000047b=>0x0000047a, 
      0x0000047d=>0x0000047c, 0x0000047f=>0x0000047e, 0x00000481=>0x00000480, 0x0000048b=>0x0000048a, 
      0x0000048d=>0x0000048c, 0x0000048f=>0x0000048e, 0x00000491=>0x00000490, 0x00000493=>0x00000492, 
      0x00000495=>0x00000494, 0x00000497=>0x00000496, 0x00000499=>0x00000498, 0x0000049b=>0x0000049a, 
      0x0000049d=>0x0000049c, 0x0000049f=>0x0000049e, 0x000004a1=>0x000004a0, 0x000004a3=>0x000004a2, 
      0x000004a5=>0x000004a4, 0x000004a7=>0x000004a6, 0x000004a9=>0x000004a8, 0x000004ab=>0x000004aa, 
      0x000004ad=>0x000004ac, 0x000004af=>0x000004ae, 0x000004b1=>0x000004b0, 0x000004b3=>0x000004b2, 
      0x000004b5=>0x000004b4, 0x000004b7=>0x000004b6, 0x000004b9=>0x000004b8, 0x000004bb=>0x000004ba, 
      0x000004bd=>0x000004bc, 0x000004bf=>0x000004be, 0x000004c2=>0x000004c1, 0x000004c4=>0x000004c3, 
      0x000004c6=>0x000004c5, 0x000004c8=>0x000004c7, 0x000004ca=>0x000004c9, 0x000004cc=>0x000004cb, 
      0x000004ce=>0x000004cd, 0x000004d1=>0x000004d0, 0x000004d3=>0x000004d2, 0x000004d5=>0x000004d4, 
      0x000004d7=>0x000004d6, 0x000004d9=>0x000004d8, 0x000004db=>0x000004da, 0x000004dd=>0x000004dc, 
      0x000004df=>0x000004de, 0x000004e1=>0x000004e0, 0x000004e3=>0x000004e2, 0x000004e5=>0x000004e4, 
      0x000004e7=>0x000004e6, 0x000004e9=>0x000004e8, 0x000004eb=>0x000004ea, 0x000004ed=>0x000004ec, 
      0x000004ef=>0x000004ee, 0x000004f1=>0x000004f0, 0x000004f3=>0x000004f2, 0x000004f5=>0x000004f4, 
      0x000004f9=>0x000004f8, 0x00000501=>0x00000500, 0x00000503=>0x00000502, 0x00000505=>0x00000504, 
      0x00000507=>0x00000506, 0x00000509=>0x00000508, 0x0000050b=>0x0000050a, 0x0000050d=>0x0000050c, 
      0x0000050f=>0x0000050e, 0x00000561=>0x00000531, 0x00000562=>0x00000532, 0x00000563=>0x00000533, 
      0x00000564=>0x00000534, 0x00000565=>0x00000535, 0x00000566=>0x00000536, 0x00000567=>0x00000537, 
      0x00000568=>0x00000538, 0x00000569=>0x00000539, 0x0000056a=>0x0000053a, 0x0000056b=>0x0000053b, 
      0x0000056c=>0x0000053c, 0x0000056d=>0x0000053d, 0x0000056e=>0x0000053e, 0x0000056f=>0x0000053f, 
      0x00000570=>0x00000540, 0x00000571=>0x00000541, 0x00000572=>0x00000542, 0x00000573=>0x00000543, 
      0x00000574=>0x00000544, 0x00000575=>0x00000545, 0x00000576=>0x00000546, 0x00000577=>0x00000547, 
      0x00000578=>0x00000548, 0x00000579=>0x00000549, 0x0000057a=>0x0000054a, 0x0000057b=>0x0000054b, 
      0x0000057c=>0x0000054c, 0x0000057d=>0x0000054d, 0x0000057e=>0x0000054e, 0x0000057f=>0x0000054f, 
      0x00000580=>0x00000550, 0x00000581=>0x00000551, 0x00000582=>0x00000552, 0x00000583=>0x00000553, 
      0x00000584=>0x00000554, 0x00000585=>0x00000555, 0x00000586=>0x00000556, 0x00001e01=>0x00001e00, 
      0x00001e03=>0x00001e02, 0x00001e05=>0x00001e04, 0x00001e07=>0x00001e06, 0x00001e09=>0x00001e08, 
      0x00001e0b=>0x00001e0a, 0x00001e0d=>0x00001e0c, 0x00001e0f=>0x00001e0e, 0x00001e11=>0x00001e10, 
      0x00001e13=>0x00001e12, 0x00001e15=>0x00001e14, 0x00001e17=>0x00001e16, 0x00001e19=>0x00001e18, 
      0x00001e1b=>0x00001e1a, 0x00001e1d=>0x00001e1c, 0x00001e1f=>0x00001e1e, 0x00001e21=>0x00001e20, 
      0x00001e23=>0x00001e22, 0x00001e25=>0x00001e24, 0x00001e27=>0x00001e26, 0x00001e29=>0x00001e28, 
      0x00001e2b=>0x00001e2a, 0x00001e2d=>0x00001e2c, 0x00001e2f=>0x00001e2e, 0x00001e31=>0x00001e30, 
      0x00001e33=>0x00001e32, 0x00001e35=>0x00001e34, 0x00001e37=>0x00001e36, 0x00001e39=>0x00001e38, 
      0x00001e3b=>0x00001e3a, 0x00001e3d=>0x00001e3c, 0x00001e3f=>0x00001e3e, 0x00001e41=>0x00001e40, 
      0x00001e43=>0x00001e42, 0x00001e45=>0x00001e44, 0x00001e47=>0x00001e46, 0x00001e49=>0x00001e48, 
      0x00001e4b=>0x00001e4a, 0x00001e4d=>0x00001e4c, 0x00001e4f=>0x00001e4e, 0x00001e51=>0x00001e50, 
      0x00001e53=>0x00001e52, 0x00001e55=>0x00001e54, 0x00001e57=>0x00001e56, 0x00001e59=>0x00001e58, 
      0x00001e5b=>0x00001e5a, 0x00001e5d=>0x00001e5c, 0x00001e5f=>0x00001e5e, 0x00001e61=>0x00001e60, 
      0x00001e63=>0x00001e62, 0x00001e65=>0x00001e64, 0x00001e67=>0x00001e66, 0x00001e69=>0x00001e68, 
      0x00001e6b=>0x00001e6a, 0x00001e6d=>0x00001e6c, 0x00001e6f=>0x00001e6e, 0x00001e71=>0x00001e70, 
      0x00001e73=>0x00001e72, 0x00001e75=>0x00001e74, 0x00001e77=>0x00001e76, 0x00001e79=>0x00001e78, 
      0x00001e7b=>0x00001e7a, 0x00001e7d=>0x00001e7c, 0x00001e7f=>0x00001e7e, 0x00001e81=>0x00001e80, 
      0x00001e83=>0x00001e82, 0x00001e85=>0x00001e84, 0x00001e87=>0x00001e86, 0x00001e89=>0x00001e88, 
      0x00001e8b=>0x00001e8a, 0x00001e8d=>0x00001e8c, 0x00001e8f=>0x00001e8e, 0x00001e91=>0x00001e90, 
      0x00001e93=>0x00001e92, 0x00001e95=>0x00001e94, 0x00001e9b=>0x00001e60, 0x00001ea1=>0x00001ea0, 
      0x00001ea3=>0x00001ea2, 0x00001ea5=>0x00001ea4, 0x00001ea7=>0x00001ea6, 0x00001ea9=>0x00001ea8, 
      0x00001eab=>0x00001eaa, 0x00001ead=>0x00001eac, 0x00001eaf=>0x00001eae, 0x00001eb1=>0x00001eb0, 
      0x00001eb3=>0x00001eb2, 0x00001eb5=>0x00001eb4, 0x00001eb7=>0x00001eb6, 0x00001eb9=>0x00001eb8, 
      0x00001ebb=>0x00001eba, 0x00001ebd=>0x00001ebc, 0x00001ebf=>0x00001ebe, 0x00001ec1=>0x00001ec0, 
      0x00001ec3=>0x00001ec2, 0x00001ec5=>0x00001ec4, 0x00001ec7=>0x00001ec6, 0x00001ec9=>0x00001ec8, 
      0x00001ecb=>0x00001eca, 0x00001ecd=>0x00001ecc, 0x00001ecf=>0x00001ece, 0x00001ed1=>0x00001ed0, 
      0x00001ed3=>0x00001ed2, 0x00001ed5=>0x00001ed4, 0x00001ed7=>0x00001ed6, 0x00001ed9=>0x00001ed8, 
      0x00001edb=>0x00001eda, 0x00001edd=>0x00001edc, 0x00001edf=>0x00001ede, 0x00001ee1=>0x00001ee0, 
      0x00001ee3=>0x00001ee2, 0x00001ee5=>0x00001ee4, 0x00001ee7=>0x00001ee6, 0x00001ee9=>0x00001ee8, 
      0x00001eeb=>0x00001eea, 0x00001eed=>0x00001eec, 0x00001eef=>0x00001eee, 0x00001ef1=>0x00001ef0, 
      0x00001ef3=>0x00001ef2, 0x00001ef5=>0x00001ef4, 0x00001ef7=>0x00001ef6, 0x00001ef9=>0x00001ef8, 
      0x00001f00=>0x00001f08, 0x00001f01=>0x00001f09, 0x00001f02=>0x00001f0a, 0x00001f03=>0x00001f0b, 
      0x00001f04=>0x00001f0c, 0x00001f05=>0x00001f0d, 0x00001f06=>0x00001f0e, 0x00001f07=>0x00001f0f, 
      0x00001f10=>0x00001f18, 0x00001f11=>0x00001f19, 0x00001f12=>0x00001f1a, 0x00001f13=>0x00001f1b, 
      0x00001f14=>0x00001f1c, 0x00001f15=>0x00001f1d, 0x00001f20=>0x00001f28, 0x00001f21=>0x00001f29, 
      0x00001f22=>0x00001f2a, 0x00001f23=>0x00001f2b, 0x00001f24=>0x00001f2c, 0x00001f25=>0x00001f2d, 
      0x00001f26=>0x00001f2e, 0x00001f27=>0x00001f2f, 0x00001f30=>0x00001f38, 0x00001f31=>0x00001f39, 
      0x00001f32=>0x00001f3a, 0x00001f33=>0x00001f3b, 0x00001f34=>0x00001f3c, 0x00001f35=>0x00001f3d, 
      0x00001f36=>0x00001f3e, 0x00001f37=>0x00001f3f, 0x00001f40=>0x00001f48, 0x00001f41=>0x00001f49, 
      0x00001f42=>0x00001f4a, 0x00001f43=>0x00001f4b, 0x00001f44=>0x00001f4c, 0x00001f45=>0x00001f4d, 
      0x00001f51=>0x00001f59, 0x00001f53=>0x00001f5b, 0x00001f55=>0x00001f5d, 0x00001f57=>0x00001f5f, 
      0x00001f60=>0x00001f68, 0x00001f61=>0x00001f69, 0x00001f62=>0x00001f6a, 0x00001f63=>0x00001f6b, 
      0x00001f64=>0x00001f6c, 0x00001f65=>0x00001f6d, 0x00001f66=>0x00001f6e, 0x00001f67=>0x00001f6f, 
      0x00001f70=>0x00001fba, 0x00001f71=>0x00001fbb, 0x00001f72=>0x00001fc8, 0x00001f73=>0x00001fc9, 
      0x00001f74=>0x00001fca, 0x00001f75=>0x00001fcb, 0x00001f76=>0x00001fda, 0x00001f77=>0x00001fdb, 
      0x00001f78=>0x00001ff8, 0x00001f79=>0x00001ff9, 0x00001f7a=>0x00001fea, 0x00001f7b=>0x00001feb, 
      0x00001f7c=>0x00001ffa, 0x00001f7d=>0x00001ffb, 0x00001f80=>0x00001f88, 0x00001f81=>0x00001f89, 
      0x00001f82=>0x00001f8a, 0x00001f83=>0x00001f8b, 0x00001f84=>0x00001f8c, 0x00001f85=>0x00001f8d, 
      0x00001f86=>0x00001f8e, 0x00001f87=>0x00001f8f, 0x00001f90=>0x00001f98, 0x00001f91=>0x00001f99, 
      0x00001f92=>0x00001f9a, 0x00001f93=>0x00001f9b, 0x00001f94=>0x00001f9c, 0x00001f95=>0x00001f9d, 
      0x00001f96=>0x00001f9e, 0x00001f97=>0x00001f9f, 0x00001fa0=>0x00001fa8, 0x00001fa1=>0x00001fa9, 
      0x00001fa2=>0x00001faa, 0x00001fa3=>0x00001fab, 0x00001fa4=>0x00001fac, 0x00001fa5=>0x00001fad, 
      0x00001fa6=>0x00001fae, 0x00001fa7=>0x00001faf, 0x00001fb0=>0x00001fb8, 0x00001fb1=>0x00001fb9, 
      0x00001fb3=>0x00001fbc, 0x00001fbe=>0x00000399, 0x00001fc3=>0x00001fcc, 0x00001fd0=>0x00001fd8, 
      0x00001fd1=>0x00001fd9, 0x00001fe0=>0x00001fe8, 0x00001fe1=>0x00001fe9, 0x00001fe5=>0x00001fec, 
      0x00001ff3=>0x00001ffc, 0x00002170=>0x00002160, 0x00002171=>0x00002161, 0x00002172=>0x00002162, 
      0x00002173=>0x00002163, 0x00002174=>0x00002164, 0x00002175=>0x00002165, 0x00002176=>0x00002166, 
      0x00002177=>0x00002167, 0x00002178=>0x00002168, 0x00002179=>0x00002169, 0x0000217a=>0x0000216a, 
      0x0000217b=>0x0000216b, 0x0000217c=>0x0000216c, 0x0000217d=>0x0000216d, 0x0000217e=>0x0000216e, 
      0x0000217f=>0x0000216f, 0x000024d0=>0x000024b6, 0x000024d1=>0x000024b7, 0x000024d2=>0x000024b8, 
      0x000024d3=>0x000024b9, 0x000024d4=>0x000024ba, 0x000024d5=>0x000024bb, 0x000024d6=>0x000024bc, 
      0x000024d7=>0x000024bd, 0x000024d8=>0x000024be, 0x000024d9=>0x000024bf, 0x000024da=>0x000024c0, 
      0x000024db=>0x000024c1, 0x000024dc=>0x000024c2, 0x000024dd=>0x000024c3, 0x000024de=>0x000024c4, 
      0x000024df=>0x000024c5, 0x000024e0=>0x000024c6, 0x000024e1=>0x000024c7, 0x000024e2=>0x000024c8, 
      0x000024e3=>0x000024c9, 0x000024e4=>0x000024ca, 0x000024e5=>0x000024cb, 0x000024e6=>0x000024cc, 
      0x000024e7=>0x000024cd, 0x000024e8=>0x000024ce, 0x000024e9=>0x000024cf, 0x0000ff41=>0x0000ff21, 
      0x0000ff42=>0x0000ff22, 0x0000ff43=>0x0000ff23, 0x0000ff44=>0x0000ff24, 0x0000ff45=>0x0000ff25, 
      0x0000ff46=>0x0000ff26, 0x0000ff47=>0x0000ff27, 0x0000ff48=>0x0000ff28, 0x0000ff49=>0x0000ff29, 
      0x0000ff4a=>0x0000ff2a, 0x0000ff4b=>0x0000ff2b, 0x0000ff4c=>0x0000ff2c, 0x0000ff4d=>0x0000ff2d, 
      0x0000ff4e=>0x0000ff2e, 0x0000ff4f=>0x0000ff2f, 0x0000ff50=>0x0000ff30, 0x0000ff51=>0x0000ff31, 
      0x0000ff52=>0x0000ff32, 0x0000ff53=>0x0000ff33, 0x0000ff54=>0x0000ff34, 0x0000ff55=>0x0000ff35, 
      0x0000ff56=>0x0000ff36, 0x0000ff57=>0x0000ff37, 0x0000ff58=>0x0000ff38, 0x0000ff59=>0x0000ff39, 
      0x0000ff5a=>0x0000ff3a, 0x00010428=>0x00010400, 0x00010429=>0x00010401, 0x0001042a=>0x00010402, 
      0x0001042b=>0x00010403, 0x0001042c=>0x00010404, 0x0001042d=>0x00010405, 0x0001042e=>0x00010406, 
      0x0001042f=>0x00010407, 0x00010430=>0x00010408, 0x00010431=>0x00010409, 0x00010432=>0x0001040a, 
      0x00010433=>0x0001040b, 0x00010434=>0x0001040c, 0x00010435=>0x0001040d, 0x00010436=>0x0001040e, 
      0x00010437=>0x0001040f, 0x00010438=>0x00010410, 0x00010439=>0x00010411, 0x0001043a=>0x00010412, 
      0x0001043b=>0x00010413, 0x0001043c=>0x00010414, 0x0001043d=>0x00010415, 0x0001043e=>0x00010416, 
      0x0001043f=>0x00010417, 0x00010440=>0x00010418, 0x00010441=>0x00010419, 0x00010442=>0x0001041a, 
      0x00010443=>0x0001041b, 0x00010444=>0x0001041c, 0x00010445=>0x0001041d, 0x00010446=>0x0001041e, 
      0x00010447=>0x0001041f, 0x00010448=>0x00010420, 0x00010449=>0x00010421, 0x0001044a=>0x00010422, 
      0x0001044b=>0x00010423, 0x0001044c=>0x00010424, 0x0001044d=>0x00010425, 
      ); 
    
    /**
     * UTF-8 Case lookup table
     *
     * This lookuptable defines the lower case letters to their correspponding
     * upper case letter in UTF-8 (it does so by flipping $UTF8_LOWER_TO_UPPER)
     *
     * @author Andreas Gohr <andi@splitbrain.org>
     */
    $this->UTF8_UPPER_TO_LOWER = array_flip($this->UTF8_LOWER_TO_UPPER);
  }
  
}
?>