<?php
/**
* @package php-font-lib
* @link http://php-font-lib.googlecode.com/
* @author Fabien Ménager <fabien.menager@gmail.com>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
* @version $Id$
*/

/**
* Encoding map used to map a code point to a Unicode char.
*
* @package php-font-lib
*/
class Encoding_Map {
  private $f;
  
  function __construct($file) {
    $this->f = fopen($file, "r");
  }
  
  function parse(){
    $map = array();
    
    while($line = fgets($this->f)) {
      if (preg_match("/^[\!\=]([0-9A-F]{2,})\s+U\+([0-9A-F]{2})([0-9A-F]{2})\s+([^\s]+)/", $line, $matches)) {
        $unicode = (hexdec($matches[2]) << 8) + hexdec($matches[3]);
        $map[hexdec($matches[1])] = array($unicode, $matches[4]);
      }
    }
    
    ksort($map);
    
    return $map;
  }
}