Description:
------------
i wrote for my old php4 application a dom/xml wrapper 
class, which does not extends the domdocument class, 
only created the object inside of my class.

but after adding of an element node, the cr/lf ist 
missing.

a tried everything to get it work :((

cheers tom

Reproduce code:
---------------
<?php

	class CMS_XML {
	
		var $convert = false;
		var $formed = true;
		var $encoding = "ISO-8859-1";
		
		var $filename;
		
		var $wddx = false;
	
		var $_xml;
		var $_debug;
	
		var $_xpath;
		var $_path;
	
		function __construct( $debug = 0 ) 
		{/*{{{*/
	
			$this->_debug = $debug;
			$this->convert  = $convert;
	
		}/*}}}*/
		
		function _returnXML( $path, $value = array() )
		{/*{{{*/
			if ( is_array( $path ) && sizeof( $path ) ) {
				$returnxml = array();
				for( $i = 0; $i < sizeof( $path ); $i++ ) {
					$returnxml[$i] = new ESMT_CORE_XML_ITEM( $this );
					$returnxml[$i]->xpath = $path[$i];
					if( isset( $value[$i] ) )
						$returnxml[$i]->text = $value[$i];
				}
			}
			else {
				$returnxml = new ESMT_CORE_XML_ITEM( $this );
				$returnxml->xpath = $path;
				if( isset( $value ) ) 
					$returnxml->value = $value;
			}
			return $returnxml;		
		}/*}}}*/
		
		function _prepareXpath( $path )
		{/*{{{*/
			
			if( !is_string( $path ) ) {
				die( 'XML FATAL ERROR: path is not a string ('.print_r( $path ).')!');
			}
			if ( preg_match_all("|(\/[^\[]+\[)([^\]'\"\s]+)(\])|", $path, $out ) ) {
				for( $i = 0; $i < sizeof( $out[0] ); $i++ ) {
					$path = str_replace( $out[1][$i].$out[2][$i].$out[3][$i], $out[1][$i].preg_replace( '/([^=]+)=([^"\']+)/', "\\1='\\2'", $out[2][$i] ).$out[3][$i] ,$path );
				}
			}
			if ( preg_match_all("|\/([a-zA-Z_:]+)\(([0-9]+)\)|", $path, $out ) ) {
				for( $i = 0; $i < sizeof( $out[0] ); $i++ ) {
					$path = str_replace( '/'.$out[1][$i].'('.$out[2][$i].')', '/'.$out[1][$i].'['.( $out[2][$i] + 1 ).']', $path );
				}
			}
			#echo "<br>$path";
			
			return $path;
		}/*}}}*/
	
		function _getXpath( $node, $path = '' )
		{/*{{{*/
	
			$index = 0;  

			if ( $node->parentNode ) {
			
				$temp = $node;
				
				while( $temp )
				{
					if ( $temp->nodeType == XML_ELEMENT_NODE )
					{
						if( $temp->nodeName == $node->nodeName )
						{
				 			$index++;  
						}
					}
					$temp = $temp->previousSibling;
				}
				$path = ( "/" . $node->nodeName . "[" . $index . "]" . $path );
	
				if( $node->parentNode ) {
					$path = $this->_getXpath( $node->parentNode, $path );
				}
				
				unset( $temp );
			}
			
			return $path;
			
		}/*}}}*/
	
		function parseString( $string ) 
		{/*{{{*/
	
			$this->_xml = new domDocument();
			
			$this->_xml->resolveExternals = true;
	
			if ( !$this->_xml->loadXML( trim( $string ) ) ) {
				
				unset( $this->_xml );
				
				return false;
			}
	
			return $this;
		}/*}}}*/
		
		function parseFile( $filename, $trusted = false ) 
		{/*{{{*/
	
			$this->filename = ( !ereg( "/", $filename ) && is_file( ereg_replace( "/$", "", $this->path )."/".$filename ) ) ? ereg_replace( "/$", "", $this->path )."/".$filename : $filename;

	
			if ( $trusted && !$this->trustedFile() ) {
				return false;
			}
	
			if ( ! ( $filepointer = fopen( $this->filename, "r" ) ) ) {
				return false;
			}
	
			$data = "";
			while ( !feof( $filepointer) ) {
				$data .= fgets( $filepointer, 4096 );
			}
			fclose( $filepointer );
			
			return $this->parseString( $data );
		}/*}}}*/
	
		function getDocument( $header = true, $formatted = true ) 
		{/*{{{*/
	
			if ( !is_object( $this->_xml ) ) 
				return false;
	
			if ( $formatted === true || $this->_debug ) {
				$this->_xml->formatOutput = true;
			}
			if ( $header ) {
				$doc = $this->_xml->saveXML();
			}
			else {
				if ( $this->_xml->lastChild  ) {
					$doc = $this->_xml->saveXML( $this->_xml->lastChild );
				}
			}
			
			if ( $this->_debug ) {
				echo "XML Debug: getDocument [<pre>".htmlentities( $doc )."</pre>]\n";
			}
	
			return $doc;
	
		}/*}}}*/
	
		function createNode( $path, $name ) 
		{/*{{{*/
	
			if ( $path == "" ) $path = $this->_path;
			
			$path = $this->_prepareXpath( $path );
		
			if ( !is_object( $this->_xml ) ) 
				return false;
	
			if ( !is_object( $this->_xpath ) ) 
				$this->_xpath = new domXPath( $this->_xml );
				
			if ( $nodes = $this->_xpath->query( $path ) ) {
				if ( $nodes->length ) {
					$xpath = array();
					foreach( $nodes as $node ) {
						if( $node->nodeType == XML_ELEMENT_NODE ) {
							$foo = $node->appendChild( new domElement( $name ) );			
							if ( $nodes->length == 1 ) 
								return $this->_returnXML( $this->_getXPath( $foo ) );
							else
								$xpath[] = $this->_getXPath( $foo );
						}
					}
					if( $xpath ) return $this->_returnXML( $xpath );
				}
			}
	
			return null;
		}/*}}}*/	
	}
	
	class CMS_XSL extends CMS_XML {/*{{{*/

	}/*}}}*/
	
	
	class ESMT_CORE_XML_ITEM {/*{{{*/
	
		var $xpath;
		var $text;
		var $value;
		
		var $parent = false;
		
		function __construct( $parent = false ) 
		{/*{{{*/
			if ( is_object( $parent ) ) {
				$this->parent = $parent;
			}	
		}/*}}}*/
		
	}/*}}}*/

<?php

        include( 'xml2.php' );

        $xml = new CMS_XML();

        $xml->parseFile( 'test.xml' ); 

        $xml->createNode( '//struct', 'foo' );

        echo "<pre>".htmlentities( $xml->getDocument() )."</pre>";

        echo "FormatOuptut: ".( $xml->_xml->formatOutput ? 'true' : 'false' );
?>

Expected result:
----------------
<?xml version="1.0"?>
<wddxpacket version="1.0">
  <header>
    <comment>idea::CMS Editor Configuration File</
comment>
  </header>
  <data>
    <struct>
      <var name="editor_versioning">
        <number>25</number>
      </var>
      <var name="editor_console">
        <number>25</number>
      </var>
      <var name="editor_caching">
        <number>3</number>
      </var>
      <var name="editor_paste">
        <string>false</string>
      </var>
      <var name="editor_styles">
        <null/>
      </var>
      <foo/>
    </struct>
  </data>
</wddxpacket>

FormatOuptut: true

Actual result:
--------------
<?xml version="1.0"?>
<wddxpacket version="1.0">
  <header>
    <comment>idea::CMS Editor Configuration File</
comment>
  </header>
  <data>
    <struct>
      <var name="editor_versioning">
        <number>25</number>
      </var>
      <var name="editor_console">
        <number>25</number>
      </var>
      <var name="editor_caching">
        <number>3</number>
      </var>
      <var name="editor_paste">
        <string>false</string>
      </var>
      <var name="editor_styles">
        <null/>
      </var>
    <foo/></struct>
  </data>
</wddxpacket>

FormatOuptut: true