[Sommaire] [Imprimer]

   1  <?php
   2  /**
   3   * $Horde: framework/XML_WBXML/WBXML/ContentHandler.php,v 1.15 2006/01/01 21:10:25 jan Exp $
   4   *
   5   * Copyright 2003-2006 Anthony Mills <amills@pyramid6.com>
   6   *
   7   * See the enclosed file COPYING for license information (LGPL).  If you did
   8   * not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
   9   *
  10   * From Binary XML Content Format Specification Version 1.3, 25 July 2001
  11   * found at http://www.wapforum.org
  12   *
  13   * @package XML_WBXML
  14   */
  15  class XML_WBXML_ContentHandler {
  16  
  17      var $_currentUri;
  18      var $_output = '';
  19  
  20      var $_opaqueHandler;
  21  
  22      /**
  23       * Charset.
  24       */
  25      var $_charset = 'UTF-8';
  26  
  27      /**
  28       * WBXML Version.
  29       * 1, 2, or 3 supported
  30       */
  31      var $_wbxmlVersion = 2;
  32  
  33      function XML_WBXML_ContentHandler()
  34      {
  35          $this->_currentUri = &new XML_WBXML_LifoQueue();
  36      }
  37  
  38      function raiseError($error)
  39      {
  40          include_once 'PEAR.php';
  41          return PEAR::raiseError($error);
  42      }
  43  
  44      function getCharsetStr()
  45      {
  46          return $this->_charset;
  47      }
  48  
  49      function setCharset($cs)
  50      {
  51          $this->_charset = $cs;
  52      }
  53  
  54      function getVersion()
  55      {
  56          return $this->_wbxmlVersion;
  57      }
  58  
  59      function setVersion($v)
  60      {
  61          $this->_wbxmlVersion = 2;
  62      }
  63  
  64      function getOutput()
  65      {
  66          return $this->_output;
  67      }
  68  
  69      function getOutputSize()
  70      {
  71          return strlen($this->_output);
  72      }
  73  
  74      function startElement($uri, $element, $attrs)
  75      {
  76          $this->_output .= '<' . $element;
  77  
  78          $currentUri = $this->_currentUri->top();
  79  
  80          if (((!$currentUri) || ($currentUri != $uri)) && $uri) {
  81              $this->_output .= ' xmlns="' . $uri . '"';
  82          }
  83  
  84          $this->_currentUri->push($uri);
  85  
  86          foreach ($attrs as $attr) {
  87              $this->_output .= ' ' . $attr['attribute'] . '="' . $attr['value'] . '"';
  88          }
  89  
  90          $this->_output .= '>';
  91      }
  92  
  93      function endElement($uri, $element)
  94      {
  95          $this->_output .= '</' . $element . '>';
  96  
  97          $this->_currentUri->pop();
  98      }
  99  
 100      function characters($str)
 101      {
 102          $this->_output .= $str;
 103      }
 104  
 105      function opaque($o)
 106      {
 107          // I can check the first chanracter and see if it is WBXML.
 108          if (ord($o[0]) < 10) {
 109              // Should decode this, I really need a call back function.
 110          } else {
 111              $this->_output .= $o;
 112          }
 113      }
 114  
 115      function setOpaqueHandler($opaqueHandler)
 116      {
 117          $this->_opaqueHandler = $opaqueHandler;
 118      }
 119  
 120      function removeOpaqueHandler()
 121      {
 122          unset($this->_opaqueHandler);
 123      }
 124  
 125  }
 126  
 127  class XML_WBXML_LifoQueue {
 128  
 129      var $_queue = array();
 130  
 131      function XML_WBXML_LifoQueue()
 132      {
 133      }
 134  
 135      function push($obj)
 136      {
 137          $this->_queue[] = $obj;
 138      }
 139  
 140      function pop()
 141      {
 142          if (count($this->_queue)) {
 143              return array_pop($this->_queue);
 144          } else {
 145              return null;
 146          }
 147      }
 148  
 149      function top()
 150      {
 151          if ($count = count($this->_queue)) {
 152              return $this->_queue[$count - 1];
 153          } else {
 154              return null;
 155          }
 156      }
 157  
 158  }