Subversion-Projekte lars-tiefland.php_share

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Revision Autor Zeilennr. Zeile
1 lars 1 
<?php
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// Wrapper for ActiveLink pure PHP DOM extension
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class ActiveLinkDOMTree {
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  var $xml;
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  var $index;
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  var $parent_indices;
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  var $parents;
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  var $content;
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  function ActiveLinkDOMTree($xml, $index, $indices, $parents) {
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    $this->xml            = $xml;
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    $this->index          = $index;
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    $this->parent_indices = $indices;
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    $this->parents        = $parents;
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    if (is_a($this->xml,"XMLLeaf")) {
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      $this->content = $xml->value;
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    } else {
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      $this->content = $xml->getXMLContent();
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    };
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  }
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  function &from_XML($xml) {
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    $tree =& new ActiveLinkDomTree($xml,0, array(), array());
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    return $tree;
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  }
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  function node_type() {
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    return is_a($this->xml,"XMLLeaf") ? XML_TEXT_NODE : XML_ELEMENT_NODE;
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  }
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  function tagname() {
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    return is_a($this->xml,"XMLLeaf") ? "text" : $this->xml->getTagName();
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  }
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  function get_attribute($name) {
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    return $this->xml->getTagAttribute($name);
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  }
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  function has_attribute($name) {
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    return $this->xml->getTagAttribute($name) !== false;
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  }
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  function get_content() {
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    return $this->xml->getXMLContent();
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  }
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  function &document_element() {
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    return $this;
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  }
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  function &last_child() {
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    $child =& $this->first_child();
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    if ($child) {
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      $sibling =& $child->next_sibling();
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      while ($sibling) {
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        $child =& $sibling;
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        $sibling =& $child->next_sibling();
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      };
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    };
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    return $child;
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  }
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  function &parent() {
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    if (!(is_a($this->xml,"XMLBranch") || is_a($this->xml,"XMLLeaf"))) {
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      $null = false;
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      return $null;
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    }
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    if (count($this->parents) > 0) {
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      $parents =& $this->parents;
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      $parent =& array_pop($parents);
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      return $parent;
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    } else {
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      $null = false;
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      return $null;
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    };
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  }
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  function &first_child() {
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    $children = $this->xml->nodes;
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    $indices = $this->parent_indices;
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    array_push($indices, $this->index);
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    $parents = $this->parents;
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    array_push($parents, $this);
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    if ($children) {
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      $node =& new ActiveLinkDOMTree($children[0], 0, $indices, $parents);
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      return $node;
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    } else {
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      $null = false;
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      return $null;
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    };
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  }
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  function &previous_sibling() {
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    $parent =& $this->parents[count($this->parents)-1];
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    $nodes  =& $parent->xml->nodes;
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    if ($this->index <= 0) {
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      $null = false;
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      return $null;
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    };
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    $sibling = &new ActiveLinkDOMTree($nodes[$this->index-1],$this->index-1, $this->parent_indices, $this->parents);
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    return $sibling;
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  }
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  function &next_sibling() {
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    $parent =& $this->parents[count($this->parents)-1];
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    $nodes  =& $parent->xml->nodes;
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    if ($this->index >= count($nodes)-1) {
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      $null = false;
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      return $null;
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    };
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    $node =& new ActiveLinkDOMTree($nodes[$this->index+1], $this->index+1, $this->parent_indices, $this->parents);
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    return $node;
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  }
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}
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?>