<?php
  /**
   * @package php-font-lib
   * @link    https://github.com/PhenX/php-font-lib
   * @author  Fabien Ménager <fabien.menager@gmail.com>
   * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
   */
  
  namespace FontLib;
  
  /**
   * Encoding map used to map a code point to a Unicode char.
   *
   * @package php-font-lib
   */
  class EncodingMap
  {
      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;
      }
  }