Index: class.xmlschema.php
===================================================================
--- class.xmlschema.php	(revision 153)
+++ class.xmlschema.php	(revision 154)
@@ -0,0 +1,906 @@
+<?php
+
+
+
+
+/**
+* parses an XML Schema, allows access to it's data, other utility methods
+* no validation... yet.
+* very experimental and limited. As is discussed on XML-DEV, I'm one of the people
+* that just doesn't have time to read the spec(s) thoroughly, and just have a couple of trusty
+* tutorials I refer to :)
+*
+* @author   Dietrich Ayala <dietrich@ganx4.com>
+* @version  $Id: class.xmlschema.php,v 1.39 2005/08/04 01:27:42 snichol Exp $
+* @access   public
+*/
+class XMLSchema extends nusoap_base  {
+	
+	// files
+	var $schema = '';
+	var $xml = '';
+	// namespaces
+	var $enclosingNamespaces;
+	// schema info
+	var $schemaInfo = array();
+	var $schemaTargetNamespace = '';
+	// types, elements, attributes defined by the schema
+	var $attributes = array();
+	var $complexTypes = array();
+	var $complexTypeStack = array();
+	var $currentComplexType = null;
+	var $elements = array();
+	var $elementStack = array();
+	var $currentElement = null;
+	var $simpleTypes = array();
+	var $simpleTypeStack = array();
+	var $currentSimpleType = null;
+	// imports
+	var $imports = array();
+	// parser vars
+	var $parser;
+	var $position = 0;
+	var $depth = 0;
+	var $depth_array = array();
+	var $message = array();
+	var $defaultNamespace = array();
+    
+	/**
+	* constructor
+	*
+	* @param    string $schema schema document URI
+	* @param    string $xml xml document URI
+	* @param	string $namespaces namespaces defined in enclosing XML
+	* @access   public
+	*/
+	function XMLSchema($schema='',$xml='',$namespaces=array()){
+		parent::nusoap_base();
+		$this->debug('xmlschema class instantiated, inside constructor');
+		// files
+		$this->schema = $schema;
+		$this->xml = $xml;
+
+		// namespaces
+		$this->enclosingNamespaces = $namespaces;
+		$this->namespaces = array_merge($this->namespaces, $namespaces);
+
+		// parse schema file
+		if($schema != ''){
+			$this->debug('initial schema file: '.$schema);
+			$this->parseFile($schema, 'schema');
+		}
+
+		// parse xml file
+		if($xml != ''){
+			$this->debug('initial xml file: '.$xml);
+			$this->parseFile($xml, 'xml');
+		}
+
+	}
+
+    /**
+    * parse an XML file
+    *
+    * @param string $xml, path/URL to XML file
+    * @param string $type, (schema | xml)
+	* @return boolean
+    * @access public
+    */
+	function parseFile($xml,$type){
+		// parse xml file
+		if($xml != ""){
+			$xmlStr = @join("",@file($xml));
+			if($xmlStr == ""){
+				$msg = 'Error reading XML from '.$xml;
+				$this->setError($msg);
+				$this->debug($msg);
+			return false;
+			} else {
+				$this->debug("parsing $xml");
+				$this->parseString($xmlStr,$type);
+				$this->debug("done parsing $xml");
+			return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	* parse an XML string
+	*
+	* @param    string $xml path or URL
+    * @param string $type, (schema|xml)
+	* @access   private
+	*/
+	function parseString($xml,$type){
+		// parse xml string
+		if($xml != ""){
+
+	    	// Create an XML parser.
+	    	$this->parser = xml_parser_create();
+	    	// Set the options for parsing the XML data.
+	    	xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
+
+	    	// Set the object for the parser.
+	    	xml_set_object($this->parser, $this);
+
+	    	// Set the element handlers for the parser.
+			if($type == "schema"){
+		    	xml_set_element_handler($this->parser, 'schemaStartElement','schemaEndElement');
+		    	xml_set_character_data_handler($this->parser,'schemaCharacterData');
+			} elseif($type == "xml"){
+				xml_set_element_handler($this->parser, 'xmlStartElement','xmlEndElement');
+		    	xml_set_character_data_handler($this->parser,'xmlCharacterData');
+			}
+
+		    // Parse the XML file.
+		    if(!xml_parse($this->parser,$xml,true)){
+			// Display an error message.
+				$errstr = sprintf('XML error parsing XML schema on line %d: %s',
+				xml_get_current_line_number($this->parser),
+				xml_error_string(xml_get_error_code($this->parser))
+				);
+				$this->debug($errstr);
+				$this->debug("XML payload:\n" . $xml);
+				$this->setError($errstr);
+	    	}
+            
+			xml_parser_free($this->parser);
+		} else{
+			$this->debug('no xml passed to parseString()!!');
+			$this->setError('no xml passed to parseString()!!');
+		}
+	}
+
+	/**
+	* start-element handler
+	*
+	* @param    string $parser XML parser object
+	* @param    string $name element name
+	* @param    string $attrs associative array of attributes
+	* @access   private
+	*/
+	function schemaStartElement($parser, $name, $attrs) {
+		
+		// position in the total number of elements, starting from 0
+		$pos = $this->position++;
+		$depth = $this->depth++;
+		// set self as current value for this depth
+		$this->depth_array[$depth] = $pos;
+		$this->message[$pos] = array('cdata' => ''); 
+		if ($depth > 0) {
+			$this->defaultNamespace[$pos] = $this->defaultNamespace[$this->depth_array[$depth - 1]];
+		} else {
+			$this->defaultNamespace[$pos] = false;
+		}
+
+		// get element prefix
+		if($prefix = $this->getPrefix($name)){
+			// get unqualified name
+			$name = $this->getLocalPart($name);
+		} else {
+        	$prefix = '';
+        }
+		
+        // loop thru attributes, expanding, and registering namespace declarations
+        if(count($attrs) > 0){
+        	foreach($attrs as $k => $v){
+                // if ns declarations, add to class level array of valid namespaces
+				if(ereg("^xmlns",$k)){
+                	//$this->xdebug("$k: $v");
+                	//$this->xdebug('ns_prefix: '.$this->getPrefix($k));
+                	if($ns_prefix = substr(strrchr($k,':'),1)){
+                		//$this->xdebug("Add namespace[$ns_prefix] = $v");
+						$this->namespaces[$ns_prefix] = $v;
+					} else {
+						$this->defaultNamespace[$pos] = $v;
+						if (! $this->getPrefixFromNamespace($v)) {
+							$this->namespaces['ns'.(count($this->namespaces)+1)] = $v;
+						}
+					}
+					if($v == 'http://www.w3.org/2001/XMLSchema' || $v == 'http://www.w3.org/1999/XMLSchema' || $v == 'http://www.w3.org/2000/10/XMLSchema'){
+						$this->XMLSchemaVersion = $v;
+						$this->namespaces['xsi'] = $v.'-instance';
+					}
+				}
+        	}
+        	foreach($attrs as $k => $v){
+                // expand each attribute
+                $k = strpos($k,':') ? $this->expandQname($k) : $k;
+                $v = strpos($v,':') ? $this->expandQname($v) : $v;
+        		$eAttrs[$k] = $v;
+        	}
+        	$attrs = $eAttrs;
+        } else {
+        	$attrs = array();
+        }
+		// find status, register data
+		switch($name){
+			case 'all':			// (optional) compositor content for a complexType
+			case 'choice':
+			case 'group':
+			case 'sequence':
+				//$this->xdebug("compositor $name for currentComplexType: $this->currentComplexType and currentElement: $this->currentElement");
+				$this->complexTypes[$this->currentComplexType]['compositor'] = $name;
+				//if($name == 'all' || $name == 'sequence'){
+				//	$this->complexTypes[$this->currentComplexType]['phpType'] = 'struct';
+				//}
+			break;
+			case 'attribute':	// complexType attribute
+            	//$this->xdebug("parsing attribute $attrs[name] $attrs[ref] of value: ".$attrs['http://schemas.xmlsoap.org/wsdl/:arrayType']);
+            	$this->xdebug("parsing attribute:");
+            	$this->appendDebug($this->varDump($attrs));
+				if (!isset($attrs['form'])) {
+					$attrs['form'] = $this->schemaInfo['attributeFormDefault'];
+				}
+            	if (isset($attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'])) {
+					$v = $attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'];
+					if (!strpos($v, ':')) {
+						// no namespace in arrayType attribute value...
+						if ($this->defaultNamespace[$pos]) {
+							// ...so use the default
+							$attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'] = $this->defaultNamespace[$pos] . ':' . $attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'];
+						}
+					}
+            	}
+                if(isset($attrs['name'])){
+					$this->attributes[$attrs['name']] = $attrs;
+					$aname = $attrs['name'];
+				} elseif(isset($attrs['ref']) && $attrs['ref'] == 'http://schemas.xmlsoap.org/soap/encoding/:arrayType'){
+					if (isset($attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'])) {
+	                	$aname = $attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'];
+	                } else {
+	                	$aname = '';
+	                }
+				} elseif(isset($attrs['ref'])){
+					$aname = $attrs['ref'];
+                    $this->attributes[$attrs['ref']] = $attrs;
+				}
+                
+				if($this->currentComplexType){	// This should *always* be
+					$this->complexTypes[$this->currentComplexType]['attrs'][$aname] = $attrs;
+				}
+				// arrayType attribute
+				if(isset($attrs['http://schemas.xmlsoap.org/wsdl/:arrayType']) || $this->getLocalPart($aname) == 'arrayType'){
+					$this->complexTypes[$this->currentComplexType]['phpType'] = 'array';
+                	$prefix = $this->getPrefix($aname);
+					if(isset($attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'])){
+						$v = $attrs['http://schemas.xmlsoap.org/wsdl/:arrayType'];
+					} else {
+						$v = '';
+					}
+                    if(strpos($v,'[,]')){
+                        $this->complexTypes[$this->currentComplexType]['multidimensional'] = true;
+                    }
+                    $v = substr($v,0,strpos($v,'[')); // clip the []
+                    if(!strpos($v,':') && isset($this->typemap[$this->XMLSchemaVersion][$v])){
+                        $v = $this->XMLSchemaVersion.':'.$v;
+                    }
+                    $this->complexTypes[$this->currentComplexType]['arrayType'] = $v;
+				}
+			break;
+			case 'complexContent':	// (optional) content for a complexType
+			break;
+			case 'complexType':
+				array_push($this->complexTypeStack, $this->currentComplexType);
+				if(isset($attrs['name'])){
+					$this->xdebug('processing named complexType '.$attrs['name']);
+					//$this->currentElement = false;
+					$this->currentComplexType = $attrs['name'];
+					$this->complexTypes[$this->currentComplexType] = $attrs;
+					$this->complexTypes[$this->currentComplexType]['typeClass'] = 'complexType';
+					// This is for constructs like
+					//           <complexType name="ListOfString" base="soap:Array">
+					//                <sequence>
+					//                    <element name="string" type="xsd:string"
+					//                        minOccurs="0" maxOccurs="unbounded" />
+					//                </sequence>
+					//            </complexType>
+					if(isset($attrs['base']) && ereg(':Array$',$attrs['base'])){
+						$this->xdebug('complexType is unusual array');
+						$this->complexTypes[$this->currentComplexType]['phpType'] = 'array';
+					} else {
+						$this->complexTypes[$this->currentComplexType]['phpType'] = 'struct';
+					}
+				}else{
+					$this->xdebug('processing unnamed complexType for element '.$this->currentElement);
+					$this->currentComplexType = $this->currentElement . '_ContainedType';
+					//$this->currentElement = false;
+					$this->complexTypes[$this->currentComplexType] = $attrs;
+					$this->complexTypes[$this->currentComplexType]['typeClass'] = 'complexType';
+					// This is for constructs like
+					//           <complexType name="ListOfString" base="soap:Array">
+					//                <sequence>
+					//                    <element name="string" type="xsd:string"
+					//                        minOccurs="0" maxOccurs="unbounded" />
+					//                </sequence>
+					//            </complexType>
+					if(isset($attrs['base']) && ereg(':Array$',$attrs['base'])){
+						$this->xdebug('complexType is unusual array');
+						$this->complexTypes[$this->currentComplexType]['phpType'] = 'array';
+					} else {
+						$this->complexTypes[$this->currentComplexType]['phpType'] = 'struct';
+					}
+				}
+			break;
+			case 'element':
+				array_push($this->elementStack, $this->currentElement);
+				// elements defined as part of a complex type should
+				// not really be added to $this->elements, but for some
+				// reason, they are
+				if (!isset($attrs['form'])) {
+					$attrs['form'] = $this->schemaInfo['elementFormDefault'];
+				}
+				if(isset($attrs['type'])){
+					$this->xdebug("processing typed element ".$attrs['name']." of type ".$attrs['type']);
+					if (! $this->getPrefix($attrs['type'])) {
+						if ($this->defaultNamespace[$pos]) {
+							$attrs['type'] = $this->defaultNamespace[$pos] . ':' . $attrs['type'];
+							$this->xdebug('used default namespace to make type ' . $attrs['type']);
+						}
+					}
+					// This is for constructs like
+					//           <complexType name="ListOfString" base="soap:Array">
+					//                <sequence>
+					//                    <element name="string" type="xsd:string"
+					//                        minOccurs="0" maxOccurs="unbounded" />
+					//                </sequence>
+					//            </complexType>
+					if ($this->currentComplexType && $this->complexTypes[$this->currentComplexType]['phpType'] == 'array') {
+						$this->xdebug('arrayType for unusual array is ' . $attrs['type']);
+						$this->complexTypes[$this->currentComplexType]['arrayType'] = $attrs['type'];
+					}
+					$this->currentElement = $attrs['name'];
+					$this->elements[ $attrs['name'] ] = $attrs;
+					$this->elements[ $attrs['name'] ]['typeClass'] = 'element';
+					$ename = $attrs['name'];
+				} elseif(isset($attrs['ref'])){
+					$this->xdebug("processing element as ref to ".$attrs['ref']);
+					$this->currentElement = "ref to ".$attrs['ref'];
+					$ename = $this->getLocalPart($attrs['ref']);
+				} else {
+					$this->xdebug("processing untyped element ".$attrs['name']);
+					$this->currentElement = $attrs['name'];
+					$this->elements[ $attrs['name'] ] = $attrs;
+					$this->elements[ $attrs['name'] ]['typeClass'] = 'element';
+					$attrs['type'] = $this->schemaTargetNamespace . ':' . $attrs['name'] . '_ContainedType';
+					$this->elements[ $attrs['name'] ]['type'] = $attrs['type'];
+					$ename = $attrs['name'];
+				}
+				if(isset($ename) && $this->currentComplexType){
+					$this->complexTypes[$this->currentComplexType]['elements'][$ename] = $attrs;
+				}
+			break;
+			case 'enumeration':	//	restriction value list member
+				$this->xdebug('enumeration ' . $attrs['value']);
+				if ($this->currentSimpleType) {
+					$this->simpleTypes[$this->currentSimpleType]['enumeration'][] = $attrs['value'];
+				} elseif ($this->currentComplexType) {
+					$this->complexTypes[$this->currentComplexType]['enumeration'][] = $attrs['value'];
+				}
+			break;
+			case 'extension':	// simpleContent or complexContent type extension
+				$this->xdebug('extension ' . $attrs['base']);
+				if ($this->currentComplexType) {
+					$this->complexTypes[$this->currentComplexType]['extensionBase'] = $attrs['base'];
+				}
+			break;
+			case 'import':
+			    if (isset($attrs['schemaLocation'])) {
+					//$this->xdebug('import namespace ' . $attrs['namespace'] . ' from ' . $attrs['schemaLocation']);
+                    $this->imports[$attrs['namespace']][] = array('location' => $attrs['schemaLocation'], 'loaded' => false);
+				} else {
+					//$this->xdebug('import namespace ' . $attrs['namespace']);
+                    $this->imports[$attrs['namespace']][] = array('location' => '', 'loaded' => true);
+					if (! $this->getPrefixFromNamespace($attrs['namespace'])) {
+						$this->namespaces['ns'.(count($this->namespaces)+1)] = $attrs['namespace'];
+					}
+				}
+			break;
+			case 'list':	// simpleType value list
+			break;
+			case 'restriction':	// simpleType, simpleContent or complexContent value restriction
+				$this->xdebug('restriction ' . $attrs['base']);
+				if($this->currentSimpleType){
+					$this->simpleTypes[$this->currentSimpleType]['type'] = $attrs['base'];
+				} elseif($this->currentComplexType){
+					$this->complexTypes[$this->currentComplexType]['restrictionBase'] = $attrs['base'];
+					if(strstr($attrs['base'],':') == ':Array'){
+						$this->complexTypes[$this->currentComplexType]['phpType'] = 'array';
+					}
+				}
+			break;
+			case 'schema':
+				$this->schemaInfo = $attrs;
+				$this->schemaInfo['schemaVersion'] = $this->getNamespaceFromPrefix($prefix);
+				if (isset($attrs['targetNamespace'])) {
+					$this->schemaTargetNamespace = $attrs['targetNamespace'];
+				}
+				if (!isset($attrs['elementFormDefault'])) {
+					$this->schemaInfo['elementFormDefault'] = 'unqualified';
+				}
+				if (!isset($attrs['attributeFormDefault'])) {
+					$this->schemaInfo['attributeFormDefault'] = 'unqualified';
+				}
+			break;
+			case 'simpleContent':	// (optional) content for a complexType
+			break;
+			case 'simpleType':
+				array_push($this->simpleTypeStack, $this->currentSimpleType);
+				if(isset($attrs['name'])){
+					$this->xdebug("processing simpleType for name " . $attrs['name']);
+					$this->currentSimpleType = $attrs['name'];
+					$this->simpleTypes[ $attrs['name'] ] = $attrs;
+					$this->simpleTypes[ $attrs['name'] ]['typeClass'] = 'simpleType';
+					$this->simpleTypes[ $attrs['name'] ]['phpType'] = 'scalar';
+				} else {
+					$this->xdebug('processing unnamed simpleType for element '.$this->currentElement);
+					$this->currentSimpleType = $this->currentElement . '_ContainedType';
+					//$this->currentElement = false;
+					$this->simpleTypes[$this->currentSimpleType] = $attrs;
+					$this->simpleTypes[$this->currentSimpleType]['phpType'] = 'scalar';
+				}
+			break;
+			case 'union':	// simpleType type list
+			break;
+			default:
+				//$this->xdebug("do not have anything to do for element $name");
+		}
+	}
+
+	/**
+	* end-element handler
+	*
+	* @param    string $parser XML parser object
+	* @param    string $name element name
+	* @access   private
+	*/
+	function schemaEndElement($parser, $name) {
+		// bring depth down a notch
+		$this->depth--;
+		// position of current element is equal to the last value left in depth_array for my depth
+		if(isset($this->depth_array[$this->depth])){
+        	$pos = $this->depth_array[$this->depth];
+        }
+		// get element prefix
+		if ($prefix = $this->getPrefix($name)){
+			// get unqualified name
+			$name = $this->getLocalPart($name);
+		} else {
+        	$prefix = '';
+        }
+		// move on...
+		if($name == 'complexType'){
+			$this->xdebug('done processing complexType ' . ($this->currentComplexType ? $this->currentComplexType : '(unknown)'));
+			$this->currentComplexType = array_pop($this->complexTypeStack);
+			//$this->currentElement = false;
+		}
+		if($name == 'element'){
+			$this->xdebug('done processing element ' . ($this->currentElement ? $this->currentElement : '(unknown)'));
+			$this->currentElement = array_pop($this->elementStack);
+		}
+		if($name == 'simpleType'){
+			$this->xdebug('done processing simpleType ' . ($this->currentSimpleType ? $this->currentSimpleType : '(unknown)'));
+			$this->currentSimpleType = array_pop($this->simpleTypeStack);
+		}
+	}
+
+	/**
+	* element content handler
+	*
+	* @param    string $parser XML parser object
+	* @param    string $data element content
+	* @access   private
+	*/
+	function schemaCharacterData($parser, $data){
+		$pos = $this->depth_array[$this->depth - 1];
+		$this->message[$pos]['cdata'] .= $data;
+	}
+
+	/**
+	* serialize the schema
+	*
+	* @access   public
+	*/
+	function serializeSchema(){
+
+		$schemaPrefix = $this->getPrefixFromNamespace($this->XMLSchemaVersion);
+		$xml = '';
+		// imports
+		if (sizeof($this->imports) > 0) {
+			foreach($this->imports as $ns => $list) {
+				foreach ($list as $ii) {
+					if ($ii['location'] != '') {
+						$xml .= " <$schemaPrefix:import location=\"" . $ii['location'] . '" namespace="' . $ns . "\" />\n";
+					} else {
+						$xml .= " <$schemaPrefix:import namespace=\"" . $ns . "\" />\n";
+					}
+				}
+			} 
+		} 
+		// complex types
+		foreach($this->complexTypes as $typeName => $attrs){
+			$contentStr = '';
+			// serialize child elements
+			if(isset($attrs['elements']) && (count($attrs['elements']) > 0)){
+				foreach($attrs['elements'] as $element => $eParts){
+					if(isset($eParts['ref'])){
+						$contentStr .= "   <$schemaPrefix:element ref=\"$element\"/>\n";
+					} else {
+						$contentStr .= "   <$schemaPrefix:element name=\"$element\" type=\"" . $this->contractQName($eParts['type']) . "\"";
+						foreach ($eParts as $aName => $aValue) {
+							// handle, e.g., abstract, default, form, minOccurs, maxOccurs, nillable
+							if ($aName != 'name' && $aName != 'type') {
+								$contentStr .= " $aName=\"$aValue\"";
+							}
+						}
+						$contentStr .= "/>\n";
+					}
+				}
+				// compositor wraps elements
+				if (isset($attrs['compositor']) && ($attrs['compositor'] != '')) {
+					$contentStr = "  <$schemaPrefix:$attrs[compositor]>\n".$contentStr."  </$schemaPrefix:$attrs[compositor]>\n";
+				}
+			}
+			// attributes
+			if(isset($attrs['attrs']) && (count($attrs['attrs']) >= 1)){
+				foreach($attrs['attrs'] as $attr => $aParts){
+					$contentStr .= "    <$schemaPrefix:attribute";
+					foreach ($aParts as $a => $v) {
+						if ($a == 'ref' || $a == 'type') {
+							$contentStr .= " $a=\"".$this->contractQName($v).'"';
+						} elseif ($a == 'http://schemas.xmlsoap.org/wsdl/:arrayType') {
+							$this->usedNamespaces['wsdl'] = $this->namespaces['wsdl'];
+							$contentStr .= ' wsdl:arrayType="'.$this->contractQName($v).'"';
+						} else {
+							$contentStr .= " $a=\"$v\"";
+						}
+					}
+					$contentStr .= "/>\n";
+				}
+			}
+			// if restriction
+			if (isset($attrs['restrictionBase']) && $attrs['restrictionBase'] != ''){
+				$contentStr = "   <$schemaPrefix:restriction base=\"".$this->contractQName($attrs['restrictionBase'])."\">\n".$contentStr."   </$schemaPrefix:restriction>\n";
+				// complex or simple content
+				if ((isset($attrs['elements']) && count($attrs['elements']) > 0) || (isset($attrs['attrs']) && count($attrs['attrs']) > 0)){
+					$contentStr = "  <$schemaPrefix:complexContent>\n".$contentStr."  </$schemaPrefix:complexContent>\n";
+				}
+			}
+			// finalize complex type
+			if($contentStr != ''){
+				$contentStr = " <$schemaPrefix:complexType name=\"$typeName\">\n".$contentStr." </$schemaPrefix:complexType>\n";
+			} else {
+				$contentStr = " <$schemaPrefix:complexType name=\"$typeName\"/>\n";
+			}
+			$xml .= $contentStr;
+		}
+		// simple types
+		if(isset($this->simpleTypes) && count($this->simpleTypes) > 0){
+			foreach($this->simpleTypes as $typeName => $eParts){
+				$xml .= " <$schemaPrefix:simpleType name=\"$typeName\">\n  <$schemaPrefix:restriction base=\"".$this->contractQName($eParts['type'])."\"/>\n";
+				if (isset($eParts['enumeration'])) {
+					foreach ($eParts['enumeration'] as $e) {
+						$xml .= "  <$schemaPrefix:enumeration value=\"$e\"/>\n";
+					}
+				}
+				$xml .= " </$schemaPrefix:simpleType>";
+			}
+		}
+		// elements
+		if(isset($this->elements) && count($this->elements) > 0){
+			foreach($this->elements as $element => $eParts){
+				$xml .= " <$schemaPrefix:element name=\"$element\" type=\"".$this->contractQName($eParts['type'])."\"/>\n";
+			}
+		}
+		// attributes
+		if(isset($this->attributes) && count($this->attributes) > 0){
+			foreach($this->attributes as $attr => $aParts){
+				$xml .= " <$schemaPrefix:attribute name=\"$attr\" type=\"".$this->contractQName($aParts['type'])."\"\n/>";
+			}
+		}
+		// finish 'er up
+		$el = "<$schemaPrefix:schema targetNamespace=\"$this->schemaTargetNamespace\"\n";
+		foreach (array_diff($this->usedNamespaces, $this->enclosingNamespaces) as $nsp => $ns) {
+			$el .= " xmlns:$nsp=\"$ns\"\n";
+		}
+		$xml = $el . ">\n".$xml."</$schemaPrefix:schema>\n";
+		return $xml;
+	}
+
+	/**
+	* adds debug data to the clas level debug string
+	*
+	* @param    string $string debug data
+	* @access   private
+	*/
+	function xdebug($string){
+		$this->debug('<' . $this->schemaTargetNamespace . '> '.$string);
+	}
+
+    /**
+    * get the PHP type of a user defined type in the schema
+    * PHP type is kind of a misnomer since it actually returns 'struct' for assoc. arrays
+    * returns false if no type exists, or not w/ the given namespace
+    * else returns a string that is either a native php type, or 'struct'
+    *
+    * @param string $type, name of defined type
+    * @param string $ns, namespace of type
+    * @return mixed
+    * @access public
+    * @deprecated
+    */
+	function getPHPType($type,$ns){
+		if(isset($this->typemap[$ns][$type])){
+			//print "found type '$type' and ns $ns in typemap<br>";
+			return $this->typemap[$ns][$type];
+		} elseif(isset($this->complexTypes[$type])){
+			//print "getting type '$type' and ns $ns from complexTypes array<br>";
+			return $this->complexTypes[$type]['phpType'];
+		}
+		return false;
+	}
+
+	/**
+    * returns an associative array of information about a given type
+    * returns false if no type exists by the given name
+    *
+	*	For a complexType typeDef = array(
+	*	'restrictionBase' => '',
+	*	'phpType' => '',
+	*	'compositor' => '(sequence|all)',
+	*	'elements' => array(), // refs to elements array
+	*	'attrs' => array() // refs to attributes array
+	*	... and so on (see addComplexType)
+	*	)
+	*
+	*   For simpleType or element, the array has different keys.
+    *
+    * @param string
+    * @return mixed
+    * @access public
+    * @see addComplexType
+    * @see addSimpleType
+    * @see addElement
+    */
+	function getTypeDef($type){
+		//$this->debug("in getTypeDef for type $type");
+		if(isset($this->complexTypes[$type])){
+			$this->xdebug("in getTypeDef, found complexType $type");
+			return $this->complexTypes[$type];
+		} elseif(isset($this->simpleTypes[$type])){
+			$this->xdebug("in getTypeDef, found simpleType $type");
+			if (!isset($this->simpleTypes[$type]['phpType'])) {
+				// get info for type to tack onto the simple type
+				// TODO: can this ever really apply (i.e. what is a simpleType really?)
+				$uqType = substr($this->simpleTypes[$type]['type'], strrpos($this->simpleTypes[$type]['type'], ':') + 1);
+				$ns = substr($this->simpleTypes[$type]['type'], 0, strrpos($this->simpleTypes[$type]['type'], ':'));
+				$etype = $this->getTypeDef($uqType);
+				if ($etype) {
+					$this->xdebug("in getTypeDef, found type for simpleType $type:");
+					$this->xdebug($this->varDump($etype));
+					if (isset($etype['phpType'])) {
+						$this->simpleTypes[$type]['phpType'] = $etype['phpType'];
+					}
+					if (isset($etype['elements'])) {
+						$this->simpleTypes[$type]['elements'] = $etype['elements'];
+					}
+				}
+			}
+			return $this->simpleTypes[$type];
+		} elseif(isset($this->elements[$type])){
+			$this->xdebug("in getTypeDef, found element $type");
+			if (!isset($this->elements[$type]['phpType'])) {
+				// get info for type to tack onto the element
+				$uqType = substr($this->elements[$type]['type'], strrpos($this->elements[$type]['type'], ':') + 1);
+				$ns = substr($this->elements[$type]['type'], 0, strrpos($this->elements[$type]['type'], ':'));
+				$etype = $this->getTypeDef($uqType);
+				if ($etype) {
+					$this->xdebug("in getTypeDef, found type for element $type:");
+					$this->xdebug($this->varDump($etype));
+					if (isset($etype['phpType'])) {
+						$this->elements[$type]['phpType'] = $etype['phpType'];
+					}
+					if (isset($etype['elements'])) {
+						$this->elements[$type]['elements'] = $etype['elements'];
+					}
+				} elseif ($ns == 'http://www.w3.org/2001/XMLSchema') {
+					$this->xdebug("in getTypeDef, element $type is an XSD type");
+					$this->elements[$type]['phpType'] = 'scalar';
+				}
+			}
+			return $this->elements[$type];
+		} elseif(isset($this->attributes[$type])){
+			$this->xdebug("in getTypeDef, found attribute $type");
+			return $this->attributes[$type];
+		} elseif (ereg('_ContainedType$', $type)) {
+			$this->xdebug("in getTypeDef, have an untyped element $type");
+			$typeDef['typeClass'] = 'simpleType';
+			$typeDef['phpType'] = 'scalar';
+			$typeDef['type'] = 'http://www.w3.org/2001/XMLSchema:string';
+			return $typeDef;
+		}
+		$this->xdebug("in getTypeDef, did not find $type");
+		return false;
+	}
+
+	/**
+    * returns a sample serialization of a given type, or false if no type by the given name
+    *
+    * @param string $type, name of type
+    * @return mixed
+    * @access public
+    * @deprecated
+    */
+    function serializeTypeDef($type){
+    	//print "in sTD() for type $type<br>";
+	if($typeDef = $this->getTypeDef($type)){
+		$str .= '<'.$type;
+	    if(is_array($typeDef['attrs'])){
+		foreach($attrs as $attName => $data){
+		    $str .= " $attName=\"{type = ".$data['type']."}\"";
+		}
+	    }
+	    $str .= " xmlns=\"".$this->schema['targetNamespace']."\"";
+	    if(count($typeDef['elements']) > 0){
+		$str .= ">";
+		foreach($typeDef['elements'] as $element => $eData){
+		    $str .= $this->serializeTypeDef($element);
+		}
+		$str .= "</$type>";
+	    } elseif($typeDef['typeClass'] == 'element') {
+		$str .= "></$type>";
+	    } else {
+		$str .= "/>";
+	    }
+			return $str;
+	}
+    	return false;
+    }
+
+    /**
+    * returns HTML form elements that allow a user
+    * to enter values for creating an instance of the given type.
+    *
+    * @param string $name, name for type instance
+    * @param string $type, name of type
+    * @return string
+    * @access public
+    * @deprecated
+	*/
+	function typeToForm($name,$type){
+		// get typedef
+		if($typeDef = $this->getTypeDef($type)){
+			// if struct
+			if($typeDef['phpType'] == 'struct'){
+				$buffer .= '<table>';
+				foreach($typeDef['elements'] as $child => $childDef){
+					$buffer .= "
+					<tr><td align='right'>$childDef[name] (type: ".$this->getLocalPart($childDef['type'])."):</td>
+					<td><input type='text' name='parameters[".$name."][$childDef[name]]'></td></tr>";
+				}
+				$buffer .= '</table>';
+			// if array
+			} elseif($typeDef['phpType'] == 'array'){
+				$buffer .= '<table>';
+				for($i=0;$i < 3; $i++){
+					$buffer .= "
+					<tr><td align='right'>array item (type: $typeDef[arrayType]):</td>
+					<td><input type='text' name='parameters[".$name."][]'></td></tr>";
+				}
+				$buffer .= '</table>';
+			// if scalar
+			} else {
+				$buffer .= "<input type='text' name='parameters[$name]'>";
+			}
+		} else {
+			$buffer .= "<input type='text' name='parameters[$name]'>";
+		}
+		return $buffer;
+	}
+	
+	/**
+	* adds a complex type to the schema
+	* 
+	* example: array
+	* 
+	* addType(
+	* 	'ArrayOfstring',
+	* 	'complexType',
+	* 	'array',
+	* 	'',
+	* 	'SOAP-ENC:Array',
+	* 	array('ref'=>'SOAP-ENC:arrayType','wsdl:arrayType'=>'string[]'),
+	* 	'xsd:string'
+	* );
+	* 
+	* example: PHP associative array ( SOAP Struct )
+	* 
+	* addType(
+	* 	'SOAPStruct',
+	* 	'complexType',
+	* 	'struct',
+	* 	'all',
+	* 	array('myVar'=> array('name'=>'myVar','type'=>'string')
+	* );
+	* 
+	* @param name
+	* @param typeClass (complexType|simpleType|attribute)
+	* @param phpType: currently supported are array and struct (php assoc array)
+	* @param compositor (all|sequence|choice)
+	* @param restrictionBase namespace:name (http://schemas.xmlsoap.org/soap/encoding/:Array)
+	* @param elements = array ( name = array(name=>'',type=>'') )
+	* @param attrs = array(
+	* 	array(
+	*		'ref' => "http://schemas.xmlsoap.org/soap/encoding/:arrayType",
+	*		"http://schemas.xmlsoap.org/wsdl/:arrayType" => "string[]"
+	* 	)
+	* )
+	* @param arrayType: namespace:name (http://www.w3.org/2001/XMLSchema:string)
+	* @access public
+	* @see getTypeDef
+	*/
+	function addComplexType($name,$typeClass='complexType',$phpType='array',$compositor='',$restrictionBase='',$elements=array(),$attrs=array(),$arrayType=''){
+		$this->complexTypes[$name] = array(
+	    'name'		=> $name,
+	    'typeClass'	=> $typeClass,
+	    'phpType'	=> $phpType,
+		'compositor'=> $compositor,
+	    'restrictionBase' => $restrictionBase,
+		'elements'	=> $elements,
+	    'attrs'		=> $attrs,
+	    'arrayType'	=> $arrayType
+		);
+		
+		$this->xdebug("addComplexType $name:");
+		$this->appendDebug($this->varDump($this->complexTypes[$name]));
+	}
+	
+	/**
+	* adds a simple type to the schema
+	*
+	* @param string $name
+	* @param string $restrictionBase namespace:name (http://schemas.xmlsoap.org/soap/encoding/:Array)
+	* @param string $typeClass (should always be simpleType)
+	* @param string $phpType (should always be scalar)
+	* @param array $enumeration array of values
+	* @access public
+	* @see xmlschema
+	* @see getTypeDef
+	*/
+	function addSimpleType($name, $restrictionBase='', $typeClass='simpleType', $phpType='scalar', $enumeration=array()) {
+		$this->simpleTypes[$name] = array(
+	    'name'			=> $name,
+	    'typeClass'		=> $typeClass,
+	    'phpType'		=> $phpType,
+	    'type'			=> $restrictionBase,
+	    'enumeration'	=> $enumeration
+		);
+		
+		$this->xdebug("addSimpleType $name:");
+		$this->appendDebug($this->varDump($this->simpleTypes[$name]));
+	}
+
+	/**
+	* adds an element to the schema
+	*
+	* @param array $attrs attributes that must include name and type
+	* @see xmlschema
+	* @access public
+	*/
+	function addElement($attrs) {
+		if (! $this->getPrefix($attrs['type'])) {
+			$attrs['type'] = $this->schemaTargetNamespace . ':' . $attrs['type'];
+		}
+		$this->elements[ $attrs['name'] ] = $attrs;
+		$this->elements[ $attrs['name'] ]['typeClass'] = 'element';
+		
+		$this->xdebug("addElement " . $attrs['name']);
+		$this->appendDebug($this->varDump($this->elements[ $attrs['name'] ]));
+	}
+}
+
+
+
+
+?>
\ No newline at end of file