xml_saxy_parser.php

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						else if ($openBraceCount > 1) {
							$textNodeText .= $currentChar;
						}
						else if ($currentChar == '[') { //this won't be reached after the first open brace is found
							$openBraceCount ++;
						}
					}

					if ($this->cDataSectionHandler == null) {
						$this->fireCharacterDataEvent($textNodeText);
					}
					else {
						$this->fireCDataSectionEvent($textNodeText);
					}
				}
				else if (strpos($upperCaseTagText, SAXY_SEARCH_NOTATION) !== false) { //NOTATION node, discard
					return;
				}
				/*
				else if (substr($tagText, 0, 2) == '!-') { //comment node
					if ($this->commentHandler != null) {
						$this->fireCommentEvent(substr($tagText, 3, (strlen($tagText) - 5)));
					}
				}
				*/
				break;

			case '?':
				//Processing Instruction node
				$this->parseProcessingInstruction($tagText);
				break;

			default:
				if ((strpos($tagText, '"') !== false) || (strpos($tagText, "'") !== false)) {
					$total = strlen($tagText);
					$tagName = '';

					for ($i = 0; $i < $total; $i++) {
//						$currentChar = $tagText{$i};
						$currentChar = substr($tagText, $i, 1);

						if (($currentChar == ' ') || ($currentChar == "\t") ||
							($currentChar == "\n") || ($currentChar == "\r") ||
							($currentChar == "\x0B")) {
							$myAttributes = $this->parseAttributes(substr($tagText, $i));
							break;
						}
						else {
							$tagName .= $currentChar;
						}
					}

					if (strrpos($tagText, '/') == (strlen($tagText) - 1)) { //check $tagText, but send $tagName
						$this->_fireStartElementEvent($tagName, $myAttributes);
						$this->_fireEndElementEvent($tagName);
					}
					else {
						$this->_fireStartElementEvent($tagName, $myAttributes);
					}
				}
				else {
					if (strpos($tagText, '/') !== false) {
						$tagText = trim(substr($tagText, 0, (strrchr($tagText, '/') - 1)));
						$this->_fireStartElementEvent($tagText, $myAttributes);
						$this->_fireEndElementEvent($tagText);
					}
					else {
						$this->_fireStartElementEvent($tagText, $myAttributes);
					}
				}
		}
	} //parseTag

 	/**
	* Fires a start element event and pushes the element name onto the elementName stack
	* @param string The start element tag name
	* @param Array The start element attributes
	*/
	function _fireStartElementEvent($tagName, &$myAttributes) {
	    $this->elementNameStack[] = $tagName;

	    if ($this->isNamespaceAware) {
			$this->detectStartNamespaceDeclaration($myAttributes);
			$tagName = $this->expandNamespacePrefix($tagName);

			$this->expandAttributePrefixes($myAttributes);
	    }

	    $this->fireStartElementEvent($tagName, $myAttributes);
	} //_fireStartElementEvent

	/**
	* Expands attribute prefixes to full namespace uri
	* @param Array The start element attributes
	*/
	function expandAttributePrefixes(&$myAttributes) {
	    $arTransform = array();

	    foreach ($myAttributes as $key => $value) {
	        if (strpos($key, 'xmlns') === false) {
	            if (strpos($key, ':') !== false) {
	                $expandedTag = $this->expandNamespacePrefix($key);
	                $arTransform[$key] = $expandedTag;
	            }
	        }
	    }

	    foreach ($arTransform as $key => $value) {
	        $myAttributes[$value] = $myAttributes[$key];
	        unset($myAttributes[$key]);
	    }
	} //expandAttributePrefixes

	/**
	* Expands the namespace prefix (if one exists) to the full namespace uri
	* @param string The tagName with the namespace prefix
	* @return string The tagName, with the prefix expanded to the namespace uri
	*/
	function expandNamespacePrefix($tagName) {
	    $stackLen = count($this->defaultNamespaceStack);
	    $defaultNamespace = $this->defaultNamespaceStack[($stackLen - 1)];

	    $colonIndex = strpos($tagName, ':');

	    if ($colonIndex !== false) {
			$prefix = substr($tagName, 0, $colonIndex);

			if ($prefix != 'xml') {
	        	$tagName = $this->getNamespaceURI($prefix) . substr($tagName, $colonIndex);
			}
			else {
				$tagName = SAXY_XML_NAMESPACE . substr($tagName, $colonIndex);
			}
	    }
	    else if ($defaultNamespace != '') {
	        $tagName = $defaultNamespace . ':' . $tagName;
	    }

	    return $tagName;
	} //expandNamespacePrefix

	/**
	* Searches the namespaceMap for the specified prefix, and returns the full namespace URI
	* @param string The namespace prefix
	* @return string The namespace uri
	*/
	function getNamespaceURI($prefix) {
	    $total = count($this->namespaceMap);
	    $uri = $prefix; //in case uri can't be found, just send back prefix
	                    //should really generate an error, but worry about this later
		//reset($this->namespaceMap);

	    for ($i = ($total - 1); $i >= 0; $i--) {
	        $currMap =& $this->namespaceMap[$i];

	        if (isset($currMap[$prefix])) {
	            $uri = $currMap[$prefix];
	            break;
	        }
	    }

	    return $uri;
	} //getNamespaceURI

	/**
	* Searches the attributes array for an xmlns declaration and fires an event if found
	* @param Array The start element attributes
	*/
	function detectStartNamespaceDeclaration(&$myAttributes) {
	    $namespaceExists = false;
	    $namespaceMapUpper = 0;
	    $userDefinedDefaultNamespace = false;
	    $total = count($myAttributes);

	    foreach ($myAttributes as $key => $value) {
	        if (strpos($key, 'xmlns') !== false) {
	            //add an array to store all namespaces for the current element
	            if (!$namespaceExists) {
					$this->namespaceMap[] = array();
					$namespaceMapUpper = count($this->namespaceMap) - 1;
	            }

				//check for default namespace override, i.e. xmlns='...'
				if (strpos($key, ':') !== false) {
				    $prefix = $namespaceMapKey = substr($key, 6);
				    $this->namespaceMap[$namespaceMapUpper][$namespaceMapKey] = $value;
				}
				else {
				    $prefix = '';
					$userDefinedDefaultNamespace = true;

					//if default namespace '', store in map using key ':'
					$this->namespaceMap[$namespaceMapUpper][':'] = $value;
					$this->defaultNamespaceStack[] = $value;
				}

	            $this->fireStartNamespaceDeclarationEvent($prefix, $value);
	            $namespaceExists = true;

				unset($myAttributes[$key]);
	        }
	    }

	    //store the default namespace (inherited from the parent elements so grab last one)
		if (!$userDefinedDefaultNamespace) {
		    $stackLen = count($this->defaultNamespaceStack);
		    if ($stackLen == 0) {
		        $this->defaultNamespaceStack[] = '';
		    }
		    else {
				$this->defaultNamespaceStack[] =
					$this->defaultNamespaceStack[($stackLen - 1)];
		    }
		}

	    $this->namespaceStack[] = $namespaceExists;
	} //detectStartNamespaceDeclaration

	/**
	* Fires an end element event and pops the element name from the elementName stack
	* @param string The end element tag name
	*/
	function _fireEndElementEvent($tagName) {
	    $lastTagName = array_pop($this->elementNameStack);

		//check for mismatched tag error
		if ($lastTagName != $tagName) {
			$this->errorCode = SAXY_XML_ERROR_TAG_MISMATCH;
		}

		if ($this->isNamespaceAware) {
		    $tagName = $this->expandNamespacePrefix($tagName);
		    $this->fireEndElementEvent($tagName);
			$this->detectEndNamespaceDeclaration();
			$defaultNamespace = array_pop($this->defaultNamespaceStack);
		}
		else {
		    $this->fireEndElementEvent($tagName);
		}
	} //_fireEndElementEvent

	/**
	* Determines whether an end namespace declaration event should be fired
	*/
	function detectEndNamespaceDeclaration() {
	    $isNamespaceEnded = array_pop($this->namespaceStack);

	    if ($isNamespaceEnded) {
			$map = array_pop($this->namespaceMap);

	        foreach ($map as $key => $value) {
	            if ($key == ':') {
					$key = '';
	            }
				$this->fireEndNamespaceDeclarationEvent($key);
	        }
		}
	} //detectEndNamespaceDeclaration

	/**
	* Parses a processing instruction
	* @param string The interior text of the processing instruction
	*/
	function parseProcessingInstruction($data) {
		$endTarget = 0;
		$total = strlen($data);

		for ($x = 2; $x < $total; $x++) {
//			if (trim($data{$x}) == '') {
			if (trim(substr($data, $x, 1)) == '') {
				$endTarget = $x;
				break;
			}
		}

		$target = substr($data, 1, ($endTarget - 1));
		$data = substr($data, ($endTarget + 1), ($total - $endTarget - 2));

		if ($this->processingInstructionHandler != null) {
			$this->fireProcessingInstructionEvent($target, $data);
		}
	} //parseProcessingInstruction

	/**
	* Parses a comment
	* @param string The interior text of the comment
	*/
	function parseComment($data) {
		if ($this->commentHandler != null) {
			$this->fireCommentEvent($data);
		}
	} //parseComment

	/**
	* Fires a doctype event
	* @param string The doctype data
	*/
	function fireDTDEvent($data) {
		call_user_func($this->DTDHandler, $this, $data);
	} //fireDTDEvent

	/**
	* Fires a comment event
	* @param string The text of the comment
	*/
	function fireCommentEvent($data) {
		call_user_func($this->commentHandler, $this, $data);
	} //fireCommentEvent

	/**
	* Fires a processing instruction event
	* @param string The processing instruction data
	*/
	function fireProcessingInstructionEvent($target, $data) {
		call_user_func($this->processingInstructionHandler, $this, $target, $data);
	} //fireProcessingInstructionEvent

	/**
	* Fires a start namespace declaration event
	* @param string The namespace prefix
	* @param string The namespace uri
	*/
	function fireStartNamespaceDeclarationEvent($prefix, $uri) {
		call_user_func($this->startNamespaceDeclarationHandler, $this, $prefix, $uri);
	} //fireStartNamespaceDeclarationEvent

	/**
	* Fires an end namespace declaration event
	* @param string The namespace prefix
	*/
	function fireEndNamespaceDeclarationEvent($prefix) {
		call_user_func($this->endNamespaceDeclarationHandler, $this, $prefix);
	} //fireEndNamespaceDeclarationEvent

	/**
	* Returns the current error code
	* @return int The current error code
	*/
	function xml_get_error_code() {
		return $this->errorCode;
	} //xml_get_error_code

	/**
	* Returns a textual description of the error code
	* @param int The error code
	* @return string The error message
	*/
	function xml_error_string($code) {
		switch ($code) {
		    case SAXY_XML_ERROR_NONE:
		        return "No error";
		        break;
			case SAXY_XML_ERROR_NO_MEMORY:
			    return "Out of memory";
		        break;
			case SAXY_XML_ERROR_SYNTAX:
			    return "Syntax error";
		        break;
			case SAXY_XML_ERROR_NO_ELEMENTS:
			    return "No elements in document";
		        break;
			case SAXY_XML_ERROR_INVALID_TOKEN:
			    return "Invalid token";
		        break;
			case SAXY_XML_ERROR_UNCLOSED_TOKEN:
			    return "Unclosed token";
		        break;
			case SAXY_XML_ERROR_PARTIAL_CHAR:
			    return "Partial character";
		        break;
			case SAXY_XML_ERROR_TAG_MISMATCH:
			    return "Tag mismatch";
		        break;
			case SAXY_XML_ERROR_DUPLICATE_ATTRIBUTE:
			    return "Duplicate attribute";
		        break;
			case SAXY_XML_ERROR_JUNK_AFTER_DOC_ELEMENT:
			    return "Junk encountered after document element";
		        break;
			case SAXY_XML_ERROR_PARAM_ENTITY_REF:
			    return "Parameter entity reference error";
		        break;
			case SAXY_XML_ERROR_UNDEFINED_ENTITY:
			    return "Undefined entity";
		        break;
			case SAXY_XML_ERROR_RECURSIVE_ENTITY_REF:
			    return "Recursive entity reference";
		        break;
			case SAXY_XML_ERROR_ASYNC_ENTITY:
			    return "Asynchronous internal entity found in external entity";
		        break;
			case SAXY_XML_ERROR_BAD_CHAR_REF:
			    return "Bad character reference";
		        break;
			case SAXY_XML_ERROR_BINARY_ENTITY_REF:
				return "Binary entity reference";
		        break;
			case SAXY_XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF:
			    return "Attribute external entity reference";
		        break;
			case SAXY_XML_ERROR_MISPLACED_XML_PI:
			    return "Misplaced processing instruction";
		        break;
			case SAXY_XML_ERROR_UNKNOWN_ENCODING:
			    return "Unknown encoding";
		        break;
			case SAXY_XML_ERROR_INCORRECT_ENCODING:
				return "Incorrect encoding";
		        break;
			case SAXY_XML_ERROR_UNCLOSED_CDATA_SECTION:
			    return "Unclosed CDATA Section";
		        break;
			case SAXY_XML_ERROR_EXTERNAL_ENTITY_HANDLING:
			    return "Problem in external entity handling";
		        break;
			default:
			    return "No definition for error code " . $code;
		        break;
		}
	} //xml_error_string

} //SAXY_Parser
?>