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<?PHP
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Stephan Schmidt <schst@php.net> |
// +----------------------------------------------------------------------+
/**
* XML/Beautifier/Renderer.php
*
* @category XML
* @package XML_Beautifier
* @author Stephan Schmidt <schst@php.net>
*/
/**
* Renderer base class for XML_Beautifier
*
* @category XML
* @package XML_Beautifier
* @author Stephan Schmidt <schst@php.net>
*/
class XML_Beautifier_Renderer {
/**
* options
* @var array
*/
var $_options = array();
/**
* create a new renderer
*
* @access public
* @param array options for the serialization
*/
function XML_Beautifier_Renderer($options = array())
{
$this->_options = $options;
}
/**
* Serialize the XML tokens
*
* @access public
* @param array XML tokens
* @return string XML document
* @abstract
*/
function serialize($tokens)
{
return '';
}
/**
* normalize the XML tree
*
* When normalizing an XML tree, adjacent data sections
* are combined to one data section.
*
* @access public
* @param array XML tree as returned by the tokenizer
* @return array XML tree
*/
function normalize($tokens)
{
$tmp = array();
foreach ($tokens as $token) {
array_push($tmp, $this->_normalizeToken($token));
}
return $tmp;
}
/**
* normalize one element in the XML tree
*
* This method will combine all data sections of an element.
*
* @access private
* @param array $struct
* @return array $struct
*/
function _normalizeToken($token)
{
if ((isset($token["children"])) && !is_array($token["children"]) || empty($token["children"])) {
return $token;
}
$children = $token["children"];
$token["children"] = array();
$cnt = count($children);
$inCData = false;
for ($i = 0; $i < $cnt; $i++ )
{
// no data section
if ($children[$i]["type"] != XML_BEAUTIFIER_CDATA) {
$children[$i] = $this->_normalizeToken($children[$i]);
$inCData = false;
array_push($token["children"], $children[$i]);
continue;
}
/**
* remove whitespace
*/
if( $this->_options['removeLineBreaks'] == true )
{
$children[$i]['data'] = trim($children[$i]['data']);
if( $children[$i]['data'] == '' ) {
continue;
}
}
if ($inCData) {
$tmp = array_pop($token["children"]);
if( $children[$i]['data'] != '' ) {
if( $tmp['data'] != '' && $this->_options['removeLineBreaks'] == true ) {
$tmp['data'] .= ' ';
}
$tmp["data"] .= $children[$i]["data"];
}
array_push($token["children"], $tmp);
} else {
array_push($token["children"], $children[$i]);
}
$inCData = true;
}
return $token;
}
/**
* indent a text block consisting of several lines
*
* @access private
* @param string $text textblock
* @param integer $depth depth to indent
* @param boolean $trim trim the lines
* @return string indented text block
*/
function _indentTextBlock($text, $depth, $trim = false)
{
$indent = $this->_getIndentString($depth);
$tmp = explode("\n", $text);
$cnt = count($tmp);
$xml = '';
for ($i = 0; $i < $cnt; $i++ ) {
if ($trim) {
$tmp[$i] = trim($tmp[$i]);
}
if( $tmp[$i] == '' )
continue;
$xml .= $indent.$tmp[$i].$this->_options["linebreak"];
}
return $xml;
}
/**
* get the string that is used for indentation in a specific depth
*
* This depends on the option 'indent'.
*
* @access private
* @param integer $depth nesting level
* @return string indent string
*/
function _getIndentString($depth)
{
if ($depth > 0) {
return str_repeat($this->_options["indent"], $depth);
}
return "";
}
}
?>
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