Merge pull request #920 from mkrivos/xmlstream

New XmlStream API

XML/Makefile

@@ -19,10 +19,10 @@ objects = AbstractContainerNode AbstractNode Attr AttrMap Attributes \
 	EntityResolverImpl ErrorHandler Event EventDispatcher EventException \
 	EventListener EventTarget InputSource LexicalHandler Locator LocatorImpl \
 	MutationEvent Name NamePool NamedNodeMap NamespaceStrategy \
-	NamespaceSupport Node NodeFilter NodeIterator NodeList Notation \
-	ParserEngine ProcessingInstruction SAXException SAXParser Text \
+	NamespaceSupport NodeAppender Node NodeFilter NodeIterator NodeList Notation \
+	ParserEngine ProcessingInstruction QName SAXException SAXParser Text \
 	TreeWalker WhitespaceFilter XMLException XMLFilter XMLFilterImpl XMLReader \
-	XMLString XMLWriter NodeAppender 
+	XMLString XMLWriter XMLStreamParser XMLStreamParserException 
 
 expat_objects = xmlparse xmlrole xmltok
 

XML/include/Poco/XML/Content.h

@@ -0,0 +1,60 @@
+//
+// Content.h
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  Content
+//
+// Definition of the Content enum.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+
+#ifndef POCO_XML_CONTENT
+#define POCO_XML_CONTENT
+
+
+namespace Poco
+{
+namespace XML
+{
+
+
+/// XML content model. C++11 enum class emulated for C++98.
+struct Content
+{
+	enum value
+	{
+		//  element   characters  whitespaces        notes
+		Empty,   //    no          no        ignored
+		Simple,  //    no          yes       preserved   content accumulated
+		Complex, //    yes         no        ignored
+		Mixed    //    yes         yes       preserved
+	};
+
+	Content(value v)
+		: v_(v)
+	{
+	}
+
+	operator value() const
+	{
+		return v_;
+	}
+
+private:
+	value v_;
+};
+
+
+}
+}
+
+#endif // XML_CONTENT

XML/include/Poco/XML/QName.h

@@ -0,0 +1,122 @@
+//
+// QName.h
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  QName
+//
+// Definition of the QName class.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef POCO_XML_QNAME_HXX
+#define POCO_XML_QNAME_HXX
+
+#include "Poco/XML/XML.h"
+
+#include <string>
+#include <iosfwd>
+
+
+namespace Poco
+{
+namespace XML
+{
+
+// Note that the optional prefix is just a "syntactic sugar". In
+// particular, it is ignored by the comparison operators and the
+// std::ostream insertion operator.
+//
+class XML_API QName
+{
+public:
+	QName();
+	QName(const std::string& name);
+	QName(const std::string& ns, const std::string& name);
+	QName(const std::string& ns, const std::string& name, const std::string& prefix);
+
+	const std::string& namespace_() const;
+	const std::string& name() const;
+	const std::string& prefix() const;
+	std::string& namespace_();
+	std::string& name();
+	std::string& prefix();
+
+	// Printable representation in the [<namespace>#]<name> form.
+	//
+	std::string string() const;
+
+	// Note that comparison operators
+	//
+public:
+	friend bool operator<(const QName& x, const QName& y)
+	{
+		return x._ns < y._ns || (x._ns == y._ns && x._name < y._name);
+	}
+
+	friend bool operator==(const QName& x, const QName& y)
+	{
+		return x._ns == y._ns && x._name == y._name;
+	}
+
+	friend bool operator!=(const QName& x, const QName& y)
+	{
+		return !(x == y);
+	}
+
+private:
+	std::string _ns;
+	std::string _name;
+	std::string _prefix;
+};
+
+
+inline const std::string& QName::namespace_() const
+{
+	return _ns;
+}
+
+
+inline const std::string& QName::name() const
+{
+	return _name;
+}
+
+
+inline const std::string& QName::prefix() const
+{
+	return _prefix;
+}
+
+
+inline std::string& QName::namespace_()
+{
+	return _ns;
+}
+
+
+inline std::string& QName::name()
+{
+	return _name;
+}
+
+
+inline std::string& QName::prefix()
+{
+	return _prefix;
+}
+
+
+XML_API std::ostream& operator<<(std::ostream&, const QName&);
+
+}
+}
+
+#endif // CUTL_XML_QNAME_HXX

XML/include/Poco/XML/ValueTraits.h

@@ -0,0 +1,105 @@
+//
+// ValueTraits.h
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  ValueTraits
+//
+// Definition of the ValueTraits templates.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+
+#ifndef POCO_XML_VALUE_TRAITS_HXX
+#define POCO_XML_VALUE_TRAITS_HXX
+
+
+#include "XMLStreamParserException.h"
+#include <string>
+#include <cstddef> // std::size_t
+#include <iostream>
+#include <sstream>
+
+namespace Poco
+{
+namespace XML
+{
+
+
+class XMLStreamParser;
+class XMLStreamSerializer;
+
+
+template<typename T>
+struct default_value_traits
+{
+	static T
+	parse(std::string, const XMLStreamParser&);
+
+	static std::string
+	serialize(const T&, const XMLStreamSerializer&);
+};
+
+
+template<>
+struct XML_API default_value_traits<bool>
+{
+	static bool
+	parse(std::string, const XMLStreamParser&);
+
+	static std::string serialize(bool v, const XMLStreamSerializer&)
+	{
+		return v ? "true" : "false";
+	}
+};
+
+
+template<>
+struct XML_API default_value_traits<std::string>
+{
+	static std::string parse(std::string s, const XMLStreamParser&)
+	{
+		return s;
+	}
+
+	static std::string serialize(const std::string& v, const XMLStreamSerializer&)
+	{
+		return v;
+	}
+};
+
+
+template<typename T>
+struct ValueTraits: default_value_traits<T>
+{
+};
+
+
+template<typename T, std::size_t N>
+struct ValueTraits<T[N]> : default_value_traits<const T*>
+{
+};
+
+
+template<typename T>
+T default_value_traits<T>::parse(std::string s, const XMLStreamParser& p)
+{
+	T r;
+	std::istringstream is(s);
+	if (!(is >> r && is.eof()))
+		throw XMLStreamParserException(p, "invalid value '" + s + "'");
+	return r;
+}
+
+
+}
+}
+
+#endif // CUTL_XML_VALUE_TRAITS_HXX

XML/include/Poco/XML/XMLStreamParser.h

@@ -0,0 +1,636 @@
+//
+// XMLStreamParser.h
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  XMLStreamParser
+//
+// Definition of the XMLStreamParser class.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+//
+
+
+#ifndef POCO_XML_XMLSTREAMPARSER_INCLUDED
+#define POCO_XML_XMLSTREAMPARSER_INCLUDED
+
+
+// We only support UTF-8 expat.
+//
+#ifdef XML_UNICODE
+#  error UTF-16 expat (XML_UNICODE defined) is not supported
+#endif
+
+#include "Poco/XML/QName.h"
+#include "Poco/XML/ValueTraits.h"
+#include "Poco/XML/Content.h"
+#include <Poco/XML/expat.h>
+#include <map>
+#include <vector>
+#include <string>
+#include <iosfwd>
+#include <cstddef> // std::size_t
+#include <cassert>
+
+
+namespace Poco
+{
+namespace XML
+{
+
+
+class XML_API XMLStreamParser
+	/// The streaming XML pull parser and streaming XML serializer. The parser
+	/// is a conforming, non-validating XML 1.0 implementation (see Implementation Notes
+	/// for details). The application character encoding (that is, the encoding used
+	/// in the application's memory) for both parser and serializer is UTF-8.
+	/// The output encoding of the serializer is UTF-8 as well. The parser supports
+	/// UTF-8, UTF-16, ISO-8859-1, and US-ASCII input encodings.
+	///
+	/// Attribute map:
+	///
+	/// Attribute map lookup. If attribute is not found, then the version
+	/// without the default value throws an appropriate parsing exception
+	/// while the version with the default value returns that value.
+	///
+	/// Note also that there is no attribute(ns,name) version since it
+	/// would conflict with attribute(name,dv) (qualified attributes
+	/// are not very common).
+	///
+	/// Attribute map is valid throughout at the "element level" until
+	/// end_element and not just during startElement. As a special case,
+	/// the map is still valid after peek() that returned end_element until
+	/// this end_element event is retrieved with next().
+	///
+	/// For more information see: http://www.codesynthesis.com/projects/libstudxml/doc/intro.xhtml
+	///
+	/// Using parser:
+	/// @code
+	/// XMLStreamParser p (ifs, argv[1]);
+	/// for (XMLStreamParser::EventType e: p)
+	/// {
+	/// switch (e)
+	/// {
+	/// case XMLStreamParser::startElement:
+	///     cerr << p.line () << ':' << p.column () << ": start " << p.name () << endl; break;
+	/// case XMLStreamParser::endElement:
+	///     cerr << p.line () << ':' << p.column () << ": end " << p.name () << endl; break;
+	/// case XMLStreamParser::startAttribute:
+	///     ...
+	/// case XMLStreamParser::endAttribute:
+	///     ...
+	/// case XMLStreamParser::characters:
+	///     ...
+	///   }
+	/// }
+	/// @endcode
+	///
+{
+public:
+
+	/// Parsing events.
+	enum EventType
+	{
+		// If adding new events, also update the stream insertion operator.
+		StartElement,
+		EndElement,
+		StartAttribute,
+		EndAttribute,
+		Characters,
+		StartNamespaceDecl,
+		EndNamespaceDecl,
+		Eof
+	};
+
+	typedef unsigned short FeatureType;
+
+	// If both receive_attributes_event and receive_attributes_map are
+	// specified, then receive_attributes_event is assumed.
+	//
+	static const FeatureType RECEIVE_ELEMENTS = 0x0001;
+	static const FeatureType RECEIVE_CHARACTERS = 0x0002;
+	static const FeatureType RECEIVE_ATTRIBUTE_MAP = 0x0004;
+	static const FeatureType RECEIVE_ATTRIBUTES_EVENT = 0x0008;
+	static const FeatureType RECEIVE_NAMESPACE_DECLS = 0x0010;
+	static const FeatureType RECEIVE_DEFAULT = RECEIVE_ELEMENTS | RECEIVE_CHARACTERS | RECEIVE_ATTRIBUTE_MAP;
+
+	// Low-level attribute map access. Note that this API assumes
+	// all attributes are handled.
+	//
+	struct AttributeValueType
+	{
+		std::string value;
+		mutable bool handled;
+	};
+
+	typedef std::map<QName, AttributeValueType> AttributeMapType;
+
+	// C++11 range-based for support. Generally, the iterator interface
+	// doesn't make much sense for the XMLStreamParser so for now we have an
+	// implementation that is just enough to the range-based for.
+	//
+	struct Iterator
+	{
+		typedef EventType value_type;
+
+		Iterator(XMLStreamParser* p = 0, EventType e = Eof) :
+			p_(p),
+			e_(e)
+		{
+		}
+		value_type operator*() const
+		{
+			return e_;
+		}
+		Iterator& operator++()
+		{
+			e_ = p_->next();
+			return *this;
+		}
+
+		// Comparison only makes sense when comparing to end (eof).
+		//
+		bool operator==(Iterator y) const
+		{
+			return e_ == Eof && y.e_ == Eof;
+		}
+		bool operator!=(Iterator y) const
+		{
+			return !(*this == y);
+		}
+
+	private:
+		XMLStreamParser* p_;
+		EventType e_;
+	};
+
+	Iterator begin()
+	{
+		return Iterator(this, next());
+	}
+	Iterator end()
+	{
+		return Iterator(this, Eof);
+	}
+
+
+	XMLStreamParser(std::istream&, const std::string& input_name, FeatureType = RECEIVE_DEFAULT);
+		/// The parser constructor takes three arguments: the stream to parse,
+		/// input name that is used in diagnostics to identify the document being
+		/// parsed, and the list of events we want the parser to report.
+		///
+		/// Parse std::istream. Input name is used in diagnostics to identify
+		/// the document being parsed.
+		///
+		/// If stream exceptions are enabled then std::ios_base::failure
+		/// exception is used to report io errors (badbit and failbit).
+		/// Otherwise, those are reported as the parsing exception.
+
+	XMLStreamParser(const void* data, std::size_t size, const std::string& input_name, FeatureType = RECEIVE_DEFAULT);
+		/// Parse memory buffer that contains the whole document. Input name
+		/// is used in diagnostics to identify the document being parsed.
+
+	~XMLStreamParser();
+
+	EventType next();
+		/// Call the next() function when we are ready to handle the next piece of XML.
+
+	void nextExpect(EventType);
+		/// Get the next event and make sure that it's what's expected. If it
+		/// is not, then throw an appropriate parsing exception.
+
+	void nextExpect(EventType, const std::string& name);
+	void nextExpect(EventType, const QName& qname);
+	void nextExpect(EventType, const std::string& ns, const std::string& name);
+
+	EventType peek();
+	EventType event();
+		// Return the even that was last returned by the call to next() or peek().
+
+	const std::string& inputName() const;
+	const QName& getQName() const;
+	const std::string& namespace_() const;
+	const std::string& name() const;
+	const std::string& prefix() const;
+	std::string& value();
+	const std::string& value() const;
+	template<typename T> T value() const;
+	Poco::UInt64 line() const;
+	Poco::UInt64 column() const;
+	const std::string& attribute(const std::string& name) const;
+	template<typename T>
+	T attribute(const std::string& name) const;
+	std::string attribute(const std::string& name, const std::string& default_value) const;
+	template<typename T>
+	T attribute(const std::string& name, const T& default_value) const;
+	const std::string& attribute(const QName& qname) const;
+	template<typename T>
+	T attribute(const QName& qname) const;
+	std::string attribute(const QName& qname, const std::string& default_value) const;
+	template<typename T>
+	T attribute(const QName& qname, const T& default_value) const;
+	bool attributePresent(const std::string& name) const;
+	bool attributePresent(const QName& qname) const;
+
+	const AttributeMapType& attributeMap() const;
+
+	// Note that you cannot get/set content while peeking.
+	//
+	void content(Content);
+	Content content() const;
+
+	// Versions that also set the content. Event type must be startElement.
+	//
+	void nextExpect(EventType, const std::string& name, Content);
+	void nextExpect(EventType, const QName& qname, Content);
+	void nextExpect(EventType, const std::string& ns, const std::string& name, Content);
+
+	// Helpers for parsing elements with simple content. The first two
+	// functions assume that startElement has already been parsed. The
+	// rest parse the complete element, from start to end.
+	//
+	// Note also that as with attribute(), there is no (namespace,name)
+	// overload since it would conflicts with (namespace,default_value).
+	//
+	std::string element();
+
+	template<typename T>
+	T element();
+	std::string element(const std::string& name);
+	std::string element(const QName& qname);
+	template<typename T>
+	T element(const std::string& name);
+	template<typename T>
+	T element(const QName& qname);
+	std::string element(const std::string& name, const std::string& default_value);
+	std::string element(const QName& qname, const std::string& default_value);
+	template<typename T>
+	T element(const std::string& name, const T& default_value);
+	template<typename T>
+	T element(const QName& qname, const T& default_value);
+
+private:
+	XMLStreamParser(const XMLStreamParser&);
+	XMLStreamParser& operator=(const XMLStreamParser&);
+
+	static void XMLCALL start_element_(void*, const XML_Char*, const XML_Char**);
+	static void XMLCALL end_element_(void*, const XML_Char*);
+	static void XMLCALL characters_(void*, const XML_Char*, int);
+	static void XMLCALL start_namespace_decl_(void*, const XML_Char*, const XML_Char*);
+	static void XMLCALL end_namespace_decl_(void*, const XML_Char*);
+
+	void init();
+	EventType next_(bool peek);
+	EventType next_body();
+	void handle_error();
+
+	// If size_ is 0, then data is std::istream. Otherwise, it is a buffer.
+	//
+	union
+	{
+		std::istream* is;
+		const void* buf;
+	}
+	_data;
+
+	std::size_t _size;
+
+	const std::string _inputName;
+	FeatureType feature_;
+
+	XML_Parser p_;
+	std::size_t depth_;
+	bool _accumulateContent; // Whether we are accumulating character content.
+	enum
+	{
+		state_next, state_peek
+	}
+	_parserState;
+	EventType _currentEvent;
+	EventType queue_;
+
+	QName qname_;
+	std::string value_;
+
+	// These are used to avoid copying when we are handling attributes
+	// and namespace decls.
+	//
+	const QName* _qualifiedName;
+	std::string* pvalue_;
+
+	Poco::UInt64 _line;
+	Poco::UInt64 _column;
+
+	// Attributes as events.
+	//
+	struct attribute_type
+	{
+		QName qname;
+		std::string value;
+	};
+
+	typedef std::vector<attribute_type> attributes;
+
+	attributes _attributes;
+	attributes::size_type _currentAttributeIndex; // Index of the current attribute.
+
+	// Namespace declarations.
+	//
+	typedef std::vector<QName> namespace_decls;
+
+	namespace_decls start_ns_;
+	namespace_decls::size_type start_ns_i_;// Index of the current decl.
+
+	namespace_decls end_ns_;
+	namespace_decls::size_type end_ns_i_;// Index of the current decl.
+
+	// Element state consisting of the content model and attribute map.
+	//
+	struct ElementEntry
+	{
+		ElementEntry(std::size_t d, Content c = Content::Mixed) :
+			depth(d),
+			content(c),
+			attributesUnhandled_(0)
+		{
+		}
+
+		std::size_t depth;
+		Content content;
+		AttributeMapType attr_map_;
+		mutable AttributeMapType::size_type attributesUnhandled_;
+	};
+
+	typedef std::vector<ElementEntry> ElementState;
+	std::vector<ElementEntry> _elementState;
+
+	// Empty attribute map to return when an element has no attributes.
+	//
+	const AttributeMapType _emptyAttrMap;
+
+	// Return the element entry corresponding to the current depth, if
+	// exists, and NULL otherwise.
+	//
+	const ElementEntry* getElement() const;
+
+	const ElementEntry* get_element_() const;
+
+	void popElement();
+};
+
+XML_API std::ostream& operator<<(std::ostream&, XMLStreamParser::EventType);
+
+inline XMLStreamParser::EventType XMLStreamParser::event()
+	// Return the even that was last returned by the call to next() or peek().
+{
+	return _currentEvent;
+}
+
+inline const std::string& XMLStreamParser::inputName() const
+{
+	return _inputName;
+}
+
+inline const QName& XMLStreamParser::getQName() const
+{
+	return *_qualifiedName;
+}
+
+inline const std::string& XMLStreamParser::namespace_() const
+{
+	return _qualifiedName->namespace_();
+}
+
+inline const std::string& XMLStreamParser::name() const
+{
+	return _qualifiedName->name();
+}
+
+inline const std::string& XMLStreamParser::prefix() const
+{
+	return _qualifiedName->prefix();
+}
+
+inline std::string& XMLStreamParser::value()
+{
+	return *pvalue_;
+}
+
+inline const std::string& XMLStreamParser::value() const
+{
+	return *pvalue_;
+}
+
+
+inline Poco::UInt64 XMLStreamParser::line() const
+{
+	return _line;
+}
+
+inline Poco::UInt64 XMLStreamParser::column() const
+{
+	return _column;
+}
+
+inline XMLStreamParser::EventType XMLStreamParser::peek()
+{
+	if (_parserState == state_peek)
+		return _currentEvent;
+	else
+	{
+		EventType e(next_(true));
+		_parserState = state_peek; // Set it after the call to next_().
+		return e;
+	}
+}
+
+template<typename T>
+inline T XMLStreamParser::value() const
+{
+	return ValueTraits < T > ::parse(value(), *this);
+}
+
+inline const std::string& XMLStreamParser::attribute(const std::string& n) const
+{
+	return attribute(QName(n));
+}
+
+template<typename T>
+inline T XMLStreamParser::attribute(const std::string& n) const
+{
+	return attribute < T > (QName(n));
+}
+
+inline std::string XMLStreamParser::attribute(const std::string& n, const std::string& dv) const
+{
+	return attribute(QName(n), dv);
+}
+
+template<typename T>
+inline T XMLStreamParser::attribute(const std::string& n, const T& dv) const
+{
+	return attribute < T > (QName(n), dv);
+}
+
+template<typename T>
+inline T XMLStreamParser::attribute(const QName& qn) const
+{
+	return ValueTraits < T > ::parse(attribute(qn), *this);
+}
+
+inline bool XMLStreamParser::attributePresent(const std::string& n) const
+{
+	return attributePresent(QName(n));
+}
+
+inline const XMLStreamParser::AttributeMapType& XMLStreamParser::attributeMap() const
+{
+	if (const ElementEntry* e = getElement())
+	{
+		e->attributesUnhandled_ = 0; // Assume all handled.
+		return e->attr_map_;
+	}
+
+	return _emptyAttrMap;
+}
+
+inline void XMLStreamParser::nextExpect(EventType e, const QName& qn)
+{
+	nextExpect(e, qn.namespace_(), qn.name());
+}
+
+inline void XMLStreamParser::nextExpect(EventType e, const std::string& n)
+{
+	nextExpect(e, std::string(), n);
+}
+
+inline void XMLStreamParser::nextExpect(EventType e, const QName& qn, Content c)
+{
+	nextExpect(e, qn);
+	assert(e == StartElement);
+	content(c);
+}
+
+inline void XMLStreamParser::nextExpect(EventType e, const std::string& n, Content c)
+{
+	nextExpect(e, std::string(), n);
+	assert(e == StartElement);
+	content(c);
+}
+
+inline void XMLStreamParser::nextExpect(EventType e, const std::string& ns, const std::string& n, Content c)
+{
+	nextExpect(e, ns, n);
+	assert(e == StartElement);
+	content(c);
+}
+
+template<typename T>
+inline T XMLStreamParser::element()
+{
+	return ValueTraits < T > ::parse(element(), *this);
+}
+
+inline std::string XMLStreamParser::element(const std::string& n)
+{
+	nextExpect(StartElement, n);
+	return element();
+}
+
+inline std::string XMLStreamParser::element(const QName& qn)
+{
+	nextExpect(StartElement, qn);
+	return element();
+}
+
+template<typename T>
+inline T XMLStreamParser::element(const std::string& n)
+{
+	return ValueTraits < T > ::parse(element(n), *this);
+}
+
+template<typename T>
+inline T XMLStreamParser::element(const QName& qn)
+{
+	return ValueTraits < T > ::parse(element(qn), *this);
+}
+
+inline std::string XMLStreamParser::element(const std::string& n, const std::string& dv)
+{
+	return element(QName(n), dv);
+}
+
+template<typename T>
+inline T XMLStreamParser::element(const std::string& n, const T& dv)
+{
+	return element < T > (QName(n), dv);
+}
+
+inline void XMLStreamParser::content(Content c)
+{
+	assert(_parserState == state_next);
+
+	if (!_elementState.empty() && _elementState.back().depth == depth_)
+		_elementState.back().content = c;
+	else
+		_elementState.push_back(ElementEntry(depth_, c));
+}
+
+inline Content XMLStreamParser::content() const
+{
+	assert(_parserState == state_next);
+
+	return !_elementState.empty() && _elementState.back().depth == depth_ ? _elementState.back().content : Content(Content::Mixed);
+}
+
+inline const XMLStreamParser::ElementEntry* XMLStreamParser::getElement() const
+{
+	return _elementState.empty() ? 0 : get_element_();
+}
+
+template<typename T>
+T XMLStreamParser::attribute(const QName& qn, const T& dv) const
+{
+	if (const ElementEntry* e = getElement())
+	{
+		AttributeMapType::const_iterator i(e->attr_map_.find(qn));
+
+		if (i != e->attr_map_.end())
+		{
+			if (!i->second.handled)
+			{
+				i->second.handled = true;
+				e->attributesUnhandled_--;
+			}
+			return ValueTraits < T > ::parse(i->second.value, *this);
+		}
+	}
+
+	return dv;
+}
+
+template<typename T>
+T XMLStreamParser::element(const QName& qn, const T& dv)
+{
+	if (peek() == StartElement && getQName() == qn)
+	{
+		next();
+		return element<T>();
+	}
+
+	return dv;
+}
+
+
+}
+}
+
+
+#endif // CUTL_XML_PARSER_HXX

XML/include/Poco/XML/XMLStreamParserException.h

@@ -0,0 +1,58 @@
+//
+// XMLStreamParserException.h
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  XMLStreamParserException
+//
+// Definition of the XMLStreamParserException class.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2013-2014 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+
+#ifndef POCO_XML_XMLSTREAMPARSEREXCEPTION_H_
+#define POCO_XML_XMLSTREAMPARSEREXCEPTION_H_
+
+#include <Poco/DOM/DOMException.h>
+
+namespace Poco
+{
+namespace XML
+{
+class XMLStreamParser;
+
+class XML_API XMLStreamParserException :
+public Poco::XML::XMLException
+{
+public:
+	XMLStreamParserException(const std::string& name, Poco::UInt64 line, Poco::UInt64 column, const std::string& description);
+	XMLStreamParserException(const XMLStreamParser&, const std::string& description);
+	virtual ~XMLStreamParserException() throw ();
+
+	const char* name() const throw();
+	Poco::UInt64 line() const;
+	Poco::UInt64 column() const;
+	const std::string& description() const;
+	virtual const char* what() const throw ();
+
+private:
+	void init();
+
+	std::string _name;
+	Poco::UInt64 _line;
+	Poco::UInt64 _column;
+	std::string _description;
+	std::string _what;
+};
+
+}
+/* namespace XML */
+} /* namespace Poco */
+#endif /* POCO_XML_XMLSTREAMPARSEREXCEPTION_H_ */

XML/samples/CMakeLists.txt

@@ -2,4 +2,5 @@ add_subdirectory(DOMParser)
 add_subdirectory(DOMWriter)
 add_subdirectory(PrettyPrint)
 add_subdirectory(SAXParser)
+#add_subdirectory(RoundTrip)
 

XML/samples/RoundTrip/CMakeLists.txt

@@ -0,0 +1,7 @@
+set(SAMPLE_NAME "RoundTrip")
+
+set(LOCAL_SRCS "")
+aux_source_directory(src LOCAL_SRCS)
+
+add_executable( ${SAMPLE_NAME} ${LOCAL_SRCS} )
+target_link_libraries( ${SAMPLE_NAME} PocoXML PocoFoundation )

XML/samples/RoundTrip/Makefile

@@ -0,0 +1,21 @@
+#
+# Makefile
+#
+# $Id: //poco/1.4/XML/samples/SAXParser/Makefile#1 $
+#
+# Makefile for Poco SAXParser
+#
+
+include $(POCO_BASE)/build/rules/global
+
+objects = RoundTrip
+
+target         = RoundTrip
+target_version = 1
+target_libs    = PocoXML PocoFoundation
+
+include $(POCO_BASE)/build/rules/exec
+
+ifdef POCO_UNBUNDLED
+        SYSLIBS += -lexpat
+endif

XML/samples/RoundTrip/src/RoundTrip.cpp

@@ -0,0 +1,100 @@
+// file      : examples/roundtrip/driver.cxx
+// copyright : not copyrighted - public domain
+
+#include <string>
+#include <fstream>
+#include <iostream>
+
+#include "Poco/XML/XMLStreamParser.h"
+
+using namespace std;
+using namespace Poco::XML;
+
+int main(int argc, char* argv[])
+{
+	if (argc != 2)
+	{
+		cerr << "usage: " << argv[0] << " <xml-file>" << endl;
+		return 1;
+	}
+
+	try
+	{
+		// Enable stream exceptions so that io failures are reported
+		// as stream rather than as parsing exceptions.
+		//
+		ifstream ifs;
+		ifs.exceptions(ifstream::badbit | ifstream::failbit);
+		ifs.open(argv[1], ifstream::in | ifstream::binary);
+
+		// Configure the parser to receive attributes as events as well
+		// as to receive prefix-namespace mappings (namespace declarations
+		// in XML terminology).
+		//
+		XMLStreamParser p(ifs, argv[1],
+				XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_ATTRIBUTES_EVENT | XMLStreamParser::RECEIVE_NAMESPACE_DECLS);
+
+		// Configure serializer not to perform indentation. Existing
+		// indentation, if any, will be preserved.
+		//
+		XMLStreamSerializer s(cout, "out", 0);
+
+		for (XMLStreamParser::EventType e(p.next()); e != XMLStreamParser::Eof; e = p.next())
+		{
+			switch (e)
+			{
+			case XMLStreamParser::StartElement:
+			{
+				s.startElement(p.getQName());
+				break;
+			}
+			case XMLStreamParser::EndElement:
+			{
+				s.endElement();
+				break;
+			}
+			case XMLStreamParser::StartNamespaceDecl:
+			{
+				s.namespaceDecl(p.namespace_(), p.prefix());
+				break;
+			}
+			case XMLStreamParser::EndNamespaceDecl:
+			{
+				// There is nothing in XML that indicates the end of namespace
+				// declaration since it is scope-based.
+				//
+				break;
+			}
+			case XMLStreamParser::StartAttribute:
+			{
+				s.startAttribute(p.getQName());
+				break;
+			}
+			case XMLStreamParser::EndAttribute:
+			{
+				s.endAttribute();
+				break;
+			}
+			case XMLStreamParser::Characters:
+			{
+				s.characters(p.value());
+				break;
+			}
+			case XMLStreamParser::Eof:
+			{
+				// Handled in the for loop.
+				//
+				break;
+			}
+			}
+		}
+	} catch (const ios_base::failure&)
+	{
+		cerr << "io failure" << endl;
+		return 1;
+	} catch (const Poco::Exception& e)
+	{
+		cerr << e.displayText() << endl;
+		return 1;
+	}
+}

XML/src/QName.cpp

@@ -0,0 +1,74 @@
+//
+// QName.cpp
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  QName
+//
+// Definition of the QName class.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#include "Poco/XML/QName.h"
+#include <ostream>
+
+using namespace std;
+
+namespace Poco
+{
+namespace XML
+{
+
+QName::QName()
+{
+}
+
+
+QName::QName(const std::string& name) :
+	_name(name)
+{
+}
+
+
+QName::QName(const std::string& ns, const std::string& name) :
+	_ns(ns),
+	_name(name)
+{
+}
+
+
+QName::QName(const std::string& ns, const std::string& name, const std::string& prefix) :
+	_ns(ns),
+	_name(name),
+	_prefix(prefix)
+{
+}
+
+
+string QName::string() const
+{
+	std::string r;
+	if (!_ns.empty())
+	{
+		r += _ns;
+		r += '#';
+	}
+
+	r += _name;
+	return r;
+}
+
+ostream& operator<<(ostream& os, const QName& qn)
+{
+	return os << qn.string();
+}
+
+}
+}

XML/src/ValueTraits.cpp

@@ -0,0 +1,45 @@
+//
+// ValueTraits.cpp
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  ValueTraits
+//
+// Definition of the ValueTraits templates.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+
+#include "Poco/XML/XMLStreamParser.h"
+#include "Poco/XML/XMLStreamParserException.h"
+
+
+using namespace std;
+
+
+namespace Poco
+{
+namespace XML
+{
+
+
+bool default_value_traits<bool>::parse(string s, const XMLStreamParser& p)
+{
+	if (s == "true" || s == "1" || s == "True" || s == "TRUE")
+		return true;
+	else if (s == "false" || s == "0" || s == "False" || s == "FALSE")
+		return false;
+	else
+		throw XMLStreamParserException(p, "invalid bool value '" + s + "'");
+}
+
+
+}
+}

XML/src/XMLStreamParser.cpp

@@ -0,0 +1,943 @@
+//
+// XMLStreamParser.cpp
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  XMLStreamParser
+//
+// Definition of the XMLStreamParser class.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#include "Poco/XML/XMLStreamParser.h"
+#include <new>     // std::bad_alloc
+#include <cassert>
+#include <cstring> // std::strchr
+#include <istream>
+#include <ostream>
+#include <sstream>
+
+using namespace std;
+
+namespace Poco
+{
+namespace XML
+{
+
+struct stream_exception_controller
+{
+	~stream_exception_controller()
+	{
+		istream::iostate s = is_.rdstate();
+		s &= ~istream::failbit;
+
+		// If our error state (sans failbit) intersects with the
+		// exception state then that means we have an active
+		// exception and changing error/exception state will
+		// cause another to be thrown.
+		//
+		if (!(old_state_ & s))
+		{
+			// Clear failbit if it was caused by eof.
+			//
+			if (is_.fail() && is_.eof())
+				is_.clear(s);
+
+			is_.exceptions(old_state_);
+		}
+	}
+
+	stream_exception_controller(istream& is)
+		: is_(is), old_state_(is_.exceptions())
+	{
+		is_.exceptions(old_state_ & ~istream::failbit);
+	}
+
+private:
+	stream_exception_controller(const stream_exception_controller&);
+
+	stream_exception_controller&
+	operator=(const stream_exception_controller&);
+
+private:
+	istream& is_;
+	istream::iostate old_state_;
+};
+
+
+static const char* parser_event_str[] =
+{
+	"start element",
+	"end element",
+	"start attribute",
+	"end attribute",
+	"characters",
+	"start namespace declaration",
+	"end namespace declaration",
+	"end of file"
+};
+
+
+ostream& operator<<(ostream& os, XMLStreamParser::EventType e)
+{
+	return os << parser_event_str[e];
+}
+
+
+XMLStreamParser::XMLStreamParser(std::istream& is, const std::string& iname, FeatureType f)
+	: _size(0), _inputName(iname), feature_(f)
+{
+	_data.is = &is;
+	init();
+}
+
+
+XMLStreamParser::XMLStreamParser(const void* data, std::size_t size, const std::string& iname, FeatureType f)
+	: _size(size), _inputName(iname), feature_(f)
+{
+	assert(data != 0 && size != 0);
+
+	_data.buf = data;
+	init();
+}
+
+
+XMLStreamParser::~XMLStreamParser()
+{
+	if (p_ != 0)
+		XML_ParserFree(p_);
+}
+
+
+void XMLStreamParser::init()
+{
+	depth_ = 0;
+	_parserState = state_next;
+	_currentEvent = Eof;
+	queue_ = Eof;
+
+	_qualifiedName = &qname_;
+	pvalue_ = &value_;
+
+	_line = 0;
+	_column = 0;
+
+	_currentAttributeIndex = 0;
+	start_ns_i_ = 0;
+	end_ns_i_ = 0;
+
+	if ((feature_ & RECEIVE_ATTRIBUTE_MAP) != 0 && (feature_ & RECEIVE_ATTRIBUTES_EVENT) != 0)
+		feature_ &= ~RECEIVE_ATTRIBUTE_MAP;
+
+	// Allocate the XMLStreamParser. Make sure nothing else can throw after
+	// this call since otherwise we will leak it.
+	//
+	p_ = XML_ParserCreateNS(0, XML_Char(' '));
+
+	if (p_ == 0)
+		throw bad_alloc();
+
+	// Get prefixes in addition to namespaces and local names.
+	//
+	XML_SetReturnNSTriplet(p_, true);
+
+	// Set handlers.
+	//
+	XML_SetUserData(p_, this);
+
+	if ((feature_ & RECEIVE_ELEMENTS) != 0)
+	{
+		XML_SetStartElementHandler(p_, &start_element_);
+		XML_SetEndElementHandler(p_, &end_element_);
+	}
+
+	if ((feature_ & RECEIVE_CHARACTERS) != 0)
+		XML_SetCharacterDataHandler(p_, &characters_);
+
+	if ((feature_ & RECEIVE_NAMESPACE_DECLS) != 0)
+		XML_SetNamespaceDeclHandler(p_, &start_namespace_decl_, &end_namespace_decl_);
+}
+
+
+void XMLStreamParser::handle_error()
+{
+	XML_Error e(XML_GetErrorCode(p_));
+
+	if (e == XML_ERROR_ABORTED)
+	{
+		// For now we only abort the XMLStreamParser in the characters_() and
+		// start_element_() handlers.
+		//
+		switch (content())
+		{
+		case Content::Empty:
+			throw XMLStreamParserException(*this, "characters in empty content");
+		case Content::Simple:
+			throw XMLStreamParserException(*this, "element in simple content");
+		case Content::Complex:
+			throw XMLStreamParserException(*this, "characters in complex content");
+		default:
+			assert(false);
+		}
+	}
+	else
+		throw XMLStreamParserException(_inputName, XML_GetCurrentLineNumber(p_), XML_GetCurrentColumnNumber(p_), XML_ErrorString(e));
+}
+
+
+XMLStreamParser::EventType XMLStreamParser::next()
+{
+	if (_parserState == state_next)
+		return next_(false);
+	else
+	{
+		// If we previously peeked at start/end_element, then adjust
+		// state accordingly.
+		//
+		switch (_currentEvent)
+		{
+		case EndElement:
+		{
+			if (!_elementState.empty() && _elementState.back().depth == depth_)
+				popElement();
+
+			depth_--;
+			break;
+		}
+		case StartElement:
+		{
+			depth_++;
+			break;
+		}
+		default:
+			break;
+		}
+
+		_parserState = state_next;
+		return _currentEvent;
+	}
+}
+
+
+const string& XMLStreamParser::attribute(const QName& qn) const
+{
+	if (const ElementEntry* e = getElement())
+	{
+		AttributeMapType::const_iterator i(e->attr_map_.find(qn));
+
+		if (i != e->attr_map_.end())
+		{
+			if (!i->second.handled)
+			{
+				i->second.handled = true;
+				e->attributesUnhandled_--;
+			}
+			return i->second.value;
+		}
+	}
+
+	throw XMLStreamParserException(*this, "attribute '" + qn.string() + "' expected");
+}
+
+
+string XMLStreamParser::attribute(const QName& qn, const string& dv) const
+{
+	if (const ElementEntry* e = getElement())
+	{
+		AttributeMapType::const_iterator i(e->attr_map_.find(qn));
+
+		if (i != e->attr_map_.end())
+		{
+			if (!i->second.handled)
+			{
+				i->second.handled = true;
+				e->attributesUnhandled_--;
+			}
+			return i->second.value;
+		}
+	}
+
+	return dv;
+}
+
+
+bool XMLStreamParser::attributePresent(const QName& qn) const
+{
+	if (const ElementEntry* e = getElement())
+	{
+		AttributeMapType::const_iterator i(e->attr_map_.find(qn));
+
+		if (i != e->attr_map_.end())
+		{
+			if (!i->second.handled)
+			{
+				i->second.handled = true;
+				e->attributesUnhandled_--;
+			}
+			return true;
+		}
+	}
+
+	return false;
+}
+
+
+void XMLStreamParser::nextExpect(EventType e)
+{
+	if (next() != e)
+		throw XMLStreamParserException(*this, string(parser_event_str[e]) + " expected");
+}
+
+
+void XMLStreamParser::nextExpect(EventType e, const string& ns, const string& n)
+{
+	if (next() != e || namespace_() != ns || name() != n)
+		throw XMLStreamParserException(*this, string(parser_event_str[e]) + " '" + QName(ns, n).string() + "' expected");
+}
+
+
+string XMLStreamParser::element()
+{
+	content(Content::Simple);
+	string r;
+
+	// The content of the element can be empty in which case there
+	// will be no characters event.
+	//
+	EventType e(next());
+	if (e == Characters)
+	{
+		r.swap(value());
+		e = next();
+	}
+
+	// We cannot really get anything other than end_element since
+	// the simple content validation won't allow it.
+	//
+	assert(e == EndElement);
+
+	return r;
+}
+
+
+string XMLStreamParser::element(const QName& qn, const string& dv)
+{
+	if (peek() == StartElement && getQName() == qn)
+	{
+		next();
+		return element();
+	}
+
+	return dv;
+}
+
+
+const XMLStreamParser::ElementEntry* XMLStreamParser::get_element_() const
+{
+	// The start_element_() Expat handler may have already provisioned
+	// an entry in the element stack. In this case, we need to get the
+	// one before it, if any.
+	//
+	const ElementEntry* r(0);
+	ElementState::size_type n(_elementState.size() - 1);
+
+	if (_elementState[n].depth == depth_)
+		r = &_elementState[n];
+	else if (n != 0 && _elementState[n].depth > depth_)
+	{
+		n--;
+		if (_elementState[n].depth == depth_)
+			r = &_elementState[n];
+	}
+
+	return r;
+}
+
+
+void XMLStreamParser::popElement()
+{
+	// Make sure there are no unhandled attributes left.
+	//
+	const ElementEntry& e(_elementState.back());
+	if (e.attributesUnhandled_ != 0)
+	{
+		// Find the first unhandled attribute and report it.
+		//
+		for (AttributeMapType::const_iterator i(e.attr_map_.begin()); i != e.attr_map_.end(); ++i)
+		{
+			if (!i->second.handled)
+				throw XMLStreamParserException(*this, "unexpected attribute '" + i->first.string() + "'");
+		}
+		assert(false);
+	}
+
+	_elementState.pop_back();
+}
+
+
+XMLStreamParser::EventType XMLStreamParser::next_(bool peek)
+{
+	EventType e(next_body());
+
+	// Content-specific processing. Note that we handle characters in the
+	// characters_() Expat handler for two reasons. Firstly, it is faster
+	// to ignore the whitespaces at the source. Secondly, this allows us
+	// to distinguish between element and attribute characters. We can
+	// move this processing to the handler because the characters event
+	// is never queued.
+	//
+	switch (e)
+	{
+	case EndElement:
+	{
+		// If this is a peek, then avoid popping the stack just yet.
+		// This way, the attribute map will still be valid until we
+		// call next().
+		//
+		if (!peek)
+		{
+			if (!_elementState.empty() && _elementState.back().depth == depth_)
+				popElement();
+
+			depth_--;
+		}
+		break;
+	}
+	case StartElement:
+	{
+		if (const ElementEntry* e = getElement())
+		{
+			switch (e->content)
+			{
+			case Content::Empty:
+				throw XMLStreamParserException(*this, "element in empty content");
+			case Content::Simple:
+				throw XMLStreamParserException(*this, "element in simple content");
+			default:
+				break;
+			}
+		}
+
+		// If this is a peek, then delay adjusting the depth.
+		//
+		if (!peek)
+			depth_++;
+
+		break;
+	}
+	default:
+		break;
+	}
+
+	return e;
+}
+
+
+XMLStreamParser::EventType XMLStreamParser::next_body()
+{
+	// See if we have any start namespace declarations we need to return.
+	//
+	if (start_ns_i_ < start_ns_.size())
+	{
+		// Based on the previous event determine what's the next one must be.
+		//
+		switch (_currentEvent)
+		{
+		case StartNamespaceDecl:
+		{
+			if (++start_ns_i_ == start_ns_.size())
+			{
+				start_ns_i_ = 0;
+				start_ns_.clear();
+				_qualifiedName = &qname_;
+				break; // No more declarations.
+			}
+			// Fall through.
+		}
+		case StartElement:
+		{
+			_currentEvent = StartNamespaceDecl;
+			_qualifiedName = &start_ns_[start_ns_i_];
+			return _currentEvent;
+		}
+		default:
+		{
+			assert(false);
+			return _currentEvent = Eof;
+		}
+		}
+	}
+
+	// See if we have any attributes we need to return as events.
+	//
+	if (_currentAttributeIndex < _attributes.size())
+	{
+		// Based on the previous event determine what's the next one must be.
+		//
+		switch (_currentEvent)
+		{
+		case StartAttribute:
+		{
+			_currentEvent = Characters;
+			pvalue_ = &_attributes[_currentAttributeIndex].value;
+			return _currentEvent;
+		}
+		case Characters:
+		{
+			_currentEvent = EndAttribute; // Name is already set.
+			return _currentEvent;
+		}
+		case EndAttribute:
+		{
+			if (++_currentAttributeIndex == _attributes.size())
+			{
+				_currentAttributeIndex = 0;
+				_attributes.clear();
+				_qualifiedName = &qname_;
+				pvalue_ = &value_;
+				break; // No more attributes.
+			}
+			// Fall through.
+		}
+		case StartElement:
+		case StartNamespaceDecl:
+		{
+			_currentEvent = StartAttribute;
+			_qualifiedName = &_attributes[_currentAttributeIndex].qname;
+			return _currentEvent;
+		}
+		default:
+		{
+			assert(false);
+			return _currentEvent = Eof;
+		}
+		}
+	}
+
+	// See if we have any end namespace declarations we need to return.
+	//
+	if (end_ns_i_ < end_ns_.size())
+	{
+		// Based on the previous event determine what's the next one must be.
+		//
+		switch (_currentEvent)
+		{
+		case EndNamespaceDecl:
+		{
+			if (++end_ns_i_ == end_ns_.size())
+			{
+				end_ns_i_ = 0;
+				end_ns_.clear();
+				_qualifiedName = &qname_;
+				break; // No more declarations.
+			}
+			// Fall through.
+		}
+			// The end namespace declaration comes before the end element
+			// which means it can follow pretty much any other event.
+			//
+		default:
+		{
+			_currentEvent = EndNamespaceDecl;
+			_qualifiedName = &end_ns_[end_ns_i_];
+			return _currentEvent;
+		}
+		}
+	}
+
+	// Check the queue.
+	//
+	if (queue_ != Eof)
+	{
+		_currentEvent = queue_;
+		queue_ = Eof;
+
+		_line = XML_GetCurrentLineNumber(p_);
+		_column = XML_GetCurrentColumnNumber(p_);
+
+		return _currentEvent;
+	}
+
+	// Reset the character accumulation flag.
+	//
+	_accumulateContent = false;
+
+	XML_ParsingStatus ps;
+	XML_GetParsingStatus(p_, &ps);
+
+	switch (ps.parsing)
+	{
+	case XML_INITIALIZED:
+	{
+		// As if we finished the previous chunk.
+		break;
+	}
+	case XML_PARSING:
+	{
+		assert(false);
+		return _currentEvent = Eof;
+	}
+	case XML_FINISHED:
+	{
+		return _currentEvent = Eof;
+	}
+	case XML_SUSPENDED:
+	{
+		switch (XML_ResumeParser(p_))
+		{
+		case XML_STATUS_SUSPENDED:
+		{
+			// If the XMLStreamParser is again in the suspended state, then
+			// that means we have the next event.
+			//
+			return _currentEvent;
+		}
+		case XML_STATUS_OK:
+		{
+			// Otherwise, we need to get and parse the next chunk of data
+			// unless this was the last chunk, in which case this is eof.
+			//
+			if (ps.finalBuffer)
+				return _currentEvent = Eof;
+
+			break;
+		}
+		case XML_STATUS_ERROR:
+			handle_error();
+		}
+		break;
+	}
+	}
+
+	// Get and parse the next chunk of data until we get the next event
+	// or reach eof.
+	//
+	if (!_accumulateContent)
+		_currentEvent = Eof;
+
+	XML_Status s;
+	do
+	{
+		if (_size != 0)
+		{
+			s = XML_Parse(p_, static_cast<const char*>(_data.buf), static_cast<int>(_size), true);
+
+			if (s == XML_STATUS_ERROR)
+				handle_error();
+
+			break;
+		}
+		else
+		{
+			const size_t cap(4096);
+
+			char* b(static_cast<char*>(XML_GetBuffer(p_, cap)));
+			if (b == 0)
+				throw bad_alloc();
+
+			// Temporarily unset the exception failbit. Also clear the fail bit
+			// when we reset the old state if it was caused by eof.
+			//
+			istream& is(*_data.is);
+			{
+				stream_exception_controller sec(is);
+				is.read(b, static_cast<streamsize>(cap));
+			}
+
+			// If the caller hasn't configured the stream to use exceptions,
+			// then use the parsing exception to report an error.
+			//
+			if (is.bad() || (is.fail() && !is.eof()))
+				throw XMLStreamParserException(*this, "io failure");
+
+			bool eof(is.eof());
+
+			s = XML_ParseBuffer(p_, static_cast<int>(is.gcount()), eof);
+
+			if (s == XML_STATUS_ERROR)
+				handle_error();
+
+			if (eof)
+				break;
+		}
+	} while (s != XML_STATUS_SUSPENDED);
+
+	return _currentEvent;
+}
+
+
+static void splitName(const XML_Char* s, QName& qn)
+{
+	string& ns(qn.namespace_());
+	string& name(qn.name());
+	string& prefix(qn.prefix());
+
+	const char* p(strchr(s, ' '));
+
+	if (p == 0)
+	{
+		ns.clear();
+		name = s;
+		prefix.clear();
+	}
+	else
+	{
+		ns.assign(s, 0, p - s);
+
+		s = p + 1;
+		p = strchr(s, ' ');
+
+		if (p == 0)
+		{
+			name = s;
+			prefix.clear();
+		}
+		else
+		{
+			name.assign(s, 0, p - s);
+			prefix = p + 1;
+		}
+	}
+}
+
+
+void XMLCALL XMLStreamParser::start_element_(void* v, const XML_Char* name, const XML_Char** atts)
+{
+	XMLStreamParser& p(*static_cast<XMLStreamParser*>(v));
+
+	XML_ParsingStatus ps;
+	XML_GetParsingStatus(p.p_, &ps);
+
+	// Expat has a (mis)-feature of a possibily calling handlers even
+	// after the non-resumable XML_StopParser call.
+	//
+	if (ps.parsing == XML_FINISHED)
+		return;
+
+	// Cannot be a followup event.
+	//
+	assert(ps.parsing == XML_PARSING);
+
+	// When accumulating characters in simple content, we expect to
+	// see more characters or end element. Seeing start element is
+	// possible but means violation of the content model.
+	//
+	if (p._accumulateContent)
+	{
+		// It would have been easier to throw the exception directly,
+		// however, the Expat code is most likely not exception safe.
+		//
+		p._line = XML_GetCurrentLineNumber(p.p_);
+		p._column = XML_GetCurrentColumnNumber(p.p_);
+		XML_StopParser(p.p_, false);
+		return;
+	}
+
+	p._currentEvent = StartElement;
+	splitName(name, p.qname_);
+
+	p._line = XML_GetCurrentLineNumber(p.p_);
+	p._column = XML_GetCurrentColumnNumber(p.p_);
+
+	// Handle attributes.
+	//
+	if (*atts != 0)
+	{
+		bool am((p.feature_ & RECEIVE_ATTRIBUTE_MAP) != 0);
+		bool ae((p.feature_ & RECEIVE_ATTRIBUTES_EVENT) != 0);
+
+		// Provision an entry for this element.
+		//
+		ElementEntry* pe(0);
+		if (am)
+		{
+			p._elementState.push_back(ElementEntry(p.depth_ + 1));
+			pe = &p._elementState.back();
+		}
+
+		if (am || ae)
+		{
+			for (; *atts != 0; atts += 2)
+			{
+				if (am)
+				{
+					QName qn;
+					splitName(*atts, qn);
+					AttributeMapType::value_type v(qn, AttributeValueType());
+					v.second.value = *(atts + 1);
+					v.second.handled = false;
+					pe->attr_map_.insert(v);
+				}
+				else
+				{
+					p._attributes.push_back(attribute_type());
+					splitName(*atts, p._attributes.back().qname);
+					p._attributes.back().value = *(atts + 1);
+				}
+			}
+
+			if (am)
+				pe->attributesUnhandled_ = pe->attr_map_.size();
+		}
+	}
+
+	XML_StopParser(p.p_, true);
+}
+
+
+void XMLCALL XMLStreamParser::end_element_(void* v, const XML_Char* name)
+{
+	XMLStreamParser& p(*static_cast<XMLStreamParser*>(v));
+
+	XML_ParsingStatus ps;
+	XML_GetParsingStatus(p.p_, &ps);
+
+	// Expat has a (mis)-feature of a possibily calling handlers even
+	// after the non-resumable XML_StopParser call.
+	//
+	if (ps.parsing == XML_FINISHED)
+		return;
+
+	// This can be a followup event for empty elements (<foo/>). In this
+	// case the element name is already set.
+	//
+	if (ps.parsing != XML_PARSING)
+		p.queue_ = EndElement;
+	else
+	{
+		splitName(name, p.qname_);
+
+		// If we are accumulating characters, then queue this event.
+		//
+		if (p._accumulateContent)
+			p.queue_ = EndElement;
+		else
+		{
+			p._currentEvent = EndElement;
+
+			p._line = XML_GetCurrentLineNumber(p.p_);
+			p._column = XML_GetCurrentColumnNumber(p.p_);
+		}
+
+		XML_StopParser(p.p_, true);
+	}
+}
+
+
+void XMLCALL XMLStreamParser::characters_(void* v, const XML_Char* s, int n)
+{
+	XMLStreamParser& p(*static_cast<XMLStreamParser*>(v));
+
+	XML_ParsingStatus ps;
+	XML_GetParsingStatus(p.p_, &ps);
+
+	// Expat has a (mis)-feature of a possibily calling handlers even
+	// after the non-resumable XML_StopParser call.
+	//
+	if (ps.parsing == XML_FINISHED)
+		return;
+
+	Content cont(p.content());
+
+	// If this is empty or complex content, see if these are whitespaces.
+	//
+	switch (cont)
+	{
+	case Content::Empty:
+	case Content::Complex:
+	{
+		for (int i(0); i != n; ++i)
+		{
+			char c(s[i]);
+			if (c == 0x20 || c == 0x0A || c == 0x0D || c == 0x09)
+				continue;
+
+			// It would have been easier to throw the exception directly,
+			// however, the Expat code is most likely not exception safe.
+			//
+			p._line = XML_GetCurrentLineNumber(p.p_);
+			p._column = XML_GetCurrentColumnNumber(p.p_);
+			XML_StopParser(p.p_, false);
+			break;
+		}
+		return;
+	}
+	default:
+		break;
+	}
+
+	// Append the characters if we are accumulating. This can also be a
+	// followup event for another character event. In this case also
+	// append the data.
+	//
+	if (p._accumulateContent || ps.parsing != XML_PARSING)
+	{
+		assert(p._currentEvent == Characters);
+		p.value_.append(s, n);
+	}
+	else
+	{
+		p._currentEvent = Characters;
+		p.value_.assign(s, n);
+
+		p._line = XML_GetCurrentLineNumber(p.p_);
+		p._column = XML_GetCurrentColumnNumber(p.p_);
+
+		// In simple content we need to accumulate all the characters
+		// into a single event. To do this we will let the XMLStreamParser run
+		// until we reach the end of the element.
+		//
+		if (cont == Content::Simple)
+			p._accumulateContent = true;
+		else
+			XML_StopParser(p.p_, true);
+	}
+}
+
+
+void XMLCALL XMLStreamParser::start_namespace_decl_(void* v, const XML_Char* prefix, const XML_Char* ns)
+{
+	XMLStreamParser& p(*static_cast<XMLStreamParser*>(v));
+
+	XML_ParsingStatus ps;
+	XML_GetParsingStatus(p.p_, &ps);
+
+	// Expat has a (mis)-feature of a possibily calling handlers even
+	// after the non-resumable XML_StopParser call.
+	//
+	if (ps.parsing == XML_FINISHED)
+		return;
+
+	p.start_ns_.push_back(QName());
+	p.start_ns_.back().prefix() = (prefix != 0 ? prefix : "");
+	p.start_ns_.back().namespace_() = (ns != 0 ? ns : "");
+}
+
+
+void XMLCALL XMLStreamParser::end_namespace_decl_(void* v, const XML_Char* prefix)
+{
+	XMLStreamParser& p(*static_cast<XMLStreamParser*>(v));
+
+	XML_ParsingStatus ps;
+	XML_GetParsingStatus(p.p_, &ps);
+
+	// Expat has a (mis)-feature of a possibily calling handlers even
+	// after the non-resumable XML_StopParser call.
+	//
+	if (ps.parsing == XML_FINISHED)
+		return;
+
+	p.end_ns_.push_back(QName());
+	p.end_ns_.back().prefix() = (prefix != 0 ? prefix : "");
+}
+
+
+}
+}

XML/src/XMLStreamParserException.cpp

@@ -0,0 +1,87 @@
+//
+// XMLStreamParserException.cpp
+//
+// $Id$
+//
+// Library: XML
+// Package: XML
+// Module:  XMLStreamParserException
+//
+// Definition of the XMLStreamParserException class.
+//
+// Copyright (c) 2004-2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+// copyright : Copyright (c) 2013-2014 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+
+#include "Poco/XML/XMLStreamParserException.h"
+#include "Poco/XML/XMLStreamParser.h"
+
+using namespace std;
+
+namespace Poco
+{
+namespace XML
+{
+
+
+XMLStreamParserException::~XMLStreamParserException() throw ()
+{
+}
+
+
+XMLStreamParserException::XMLStreamParserException(const string& n, Poco::UInt64 l, Poco::UInt64 c, const string& d)
+	: _name(n), _line(l), _column(c), _description(d)
+{
+	init();
+}
+
+
+XMLStreamParserException::XMLStreamParserException(const XMLStreamParser& p, const std::string& d)
+	: _name(p.inputName()), _line(p.line()), _column(p.column()), _description(d)
+{
+	init();
+}
+
+
+void XMLStreamParserException::init()
+{
+	std::ostringstream os;
+	if (!_name.empty())
+		os << _name << ':';
+	os << _line << ':' << _column << ": error: " << _description;
+	_what = os.str();
+}
+
+
+const char* XMLStreamParserException::name() const throw()
+{
+	return _name.c_str();
+}
+
+Poco::UInt64 XMLStreamParserException::line() const
+{
+	return _line;
+}
+
+Poco::UInt64 XMLStreamParserException::column() const
+{
+	return _column;
+}
+
+const std::string& XMLStreamParserException::description() const
+{
+	return _description;
+}
+
+char const* XMLStreamParserException::what() const throw ()
+{
+	return _what.c_str();
+}
+
+
+} /* namespace XML */
+} /* namespace Poco */

XML/testsuite/Makefile

@@ -12,7 +12,8 @@ objects = AttributesImplTest ChildNodesTest DOMTestSuite DocumentTest \
 	DocumentTypeTest Driver ElementTest EventTest NamePoolTest NameTest \
 	NamespaceSupportTest NodeIteratorTest NodeTest ParserWriterTest \
 	SAXParserTest SAXTestSuite TextTest TreeWalkerTest \
-	XMLTestSuite XMLWriterTest NodeAppenderTest
+	XMLTestSuite XMLWriterTest NodeAppenderTest XMLStreamSerializerTestSuite \
+	XMLStreamParserTestSuite
 
 target         = testrunner
 target_version = 1

XML/testsuite/src/XMLStreamParserTestSuite.cpp

@@ -0,0 +1,489 @@
+//
+// XMLStreamParserTestSuite.cpp
+//
+// $Id: //poco/1.4/XML/testsuite/src/XMLStreamParserTestSuite.cpp#4 $
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+#include "XMLStreamParserTestSuite.h"
+#include "CppUnit/TestCaller.h"
+#include "CppUnit/TestSuite.h"
+#include "Poco/XML/XMLStreamParser.h"
+#include "Poco/Exception.h"
+#include <sstream>
+#include <string>
+#include <vector>
+#include <iostream>
+
+using namespace Poco::XML;
+using namespace std;
+
+XMLStreamParserTestSuite::XMLStreamParserTestSuite(const std::string& name)
+		: CppUnit::TestCase(name)
+{
+}
+
+XMLStreamParserTestSuite::~XMLStreamParserTestSuite()
+{
+}
+
+void XMLStreamParserTestSuite::testParser()
+{
+	// Test error handling.
+	//
+	try
+	{
+		istringstream is("<root><nested>X</nasted></root>");
+		XMLStreamParser p(is, "test");
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == "X");
+		p.next();
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	try
+	{
+		istringstream is("<root/>");
+		is.exceptions(ios_base::badbit | ios_base::failbit);
+		XMLStreamParser p(is, "test");
+
+		is.setstate(ios_base::badbit);
+		p.next();
+		poco_assert(false);
+	} catch (const ios_base::failure&)
+	{
+	}
+
+	// Test the nextExpect() functionality.
+	//
+	{
+		istringstream is("<root/>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		p.nextExpect(XMLStreamParser::EndElement);
+	}
+
+	try
+	{
+		istringstream is("<root/>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::EndElement);
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	try
+	{
+		istringstream is("<root/>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root1");
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	// Test nextExpect() with content setting.
+	//
+	{
+		istringstream is("<root>  </root>");
+		XMLStreamParser p(is, "empty");
+
+		p.nextExpect(XMLStreamParser::StartElement, "root", Content::Empty);
+		p.nextExpect(XMLStreamParser::EndElement);
+		p.nextExpect(XMLStreamParser::Eof);
+	}
+
+	// Test namespace declarations.
+	//
+	{
+		// Followup end element event that should be precedeeded by end
+		// namespace declaration.
+		//
+		istringstream is("<root xmlns:a='a'/>");
+		XMLStreamParser p(is, "test", XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_NAMESPACE_DECLS);
+
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		p.nextExpect(XMLStreamParser::StartNamespaceDecl);
+		p.nextExpect(XMLStreamParser::EndNamespaceDecl);
+		p.nextExpect(XMLStreamParser::EndElement);
+	}
+
+	// Test value extraction.
+	//
+	{
+		istringstream is("<root>123</root>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		p.nextExpect(XMLStreamParser::Characters);
+		poco_assert(p.value<int>() == 123);
+		p.nextExpect(XMLStreamParser::EndElement);
+	}
+
+	// Test attribute maps.
+	//
+	{
+		istringstream is("<root a='a' b='b' d='123' t='true'/>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+
+		poco_assert(p.attribute("a") == "a");
+		poco_assert(p.attribute("b", "B") == "b");
+		poco_assert(p.attribute("c", "C") == "C");
+		poco_assert(p.attribute<int>("d") == 123);
+		poco_assert(p.attribute<bool>("t") == true);
+		poco_assert(p.attribute("f", false) == false);
+
+		p.nextExpect(XMLStreamParser::EndElement);
+	}
+
+	{
+		istringstream is("<root a='a'><nested a='A'><inner/></nested></root>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		poco_assert(p.attribute("a") == "a");
+		poco_assert(p.peek() == XMLStreamParser::StartElement && p.name() == "nested");
+		poco_assert(p.attribute("a") == "a");
+		p.nextExpect(XMLStreamParser::StartElement, "nested");
+		poco_assert(p.attribute("a") == "A");
+		p.nextExpect(XMLStreamParser::StartElement, "inner");
+		poco_assert(p.attribute("a", "") == "");
+		p.nextExpect(XMLStreamParser::EndElement);
+		poco_assert(p.attribute("a") == "A");
+		poco_assert(p.peek() == XMLStreamParser::EndElement);
+		poco_assert(p.attribute("a") == "A"); // Still valid.
+		p.nextExpect(XMLStreamParser::EndElement);
+		poco_assert(p.attribute("a") == "a");
+		p.nextExpect(XMLStreamParser::EndElement);
+		poco_assert(p.attribute("a", "") == "");
+	}
+
+	try
+	{
+		istringstream is("<root a='a' b='b'/>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		poco_assert(p.attribute("a") == "a");
+		p.nextExpect(XMLStreamParser::EndElement);
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	try
+	{
+		istringstream is("<root a='abc'/>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		p.attribute<int>("a");
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	// Test peeking and getting the current event.
+	//
+	{
+		istringstream is("<root x='x'>x<nested/></root>");
+		XMLStreamParser p(is, "peek", XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_ATTRIBUTES_EVENT);
+
+		poco_assert(p.event() == XMLStreamParser::Eof);
+
+		poco_assert(p.peek() == XMLStreamParser::StartElement);
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		poco_assert(p.event() == XMLStreamParser::StartElement);
+
+		poco_assert(p.peek() == XMLStreamParser::StartAttribute);
+		poco_assert(p.event() == XMLStreamParser::StartAttribute);
+		poco_assert(p.next() == XMLStreamParser::StartAttribute);
+
+		poco_assert(p.peek() == XMLStreamParser::Characters && p.value() == "x");
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == "x");
+		poco_assert(p.event() == XMLStreamParser::Characters && p.value() == "x");
+
+		poco_assert(p.peek() == XMLStreamParser::EndAttribute);
+		poco_assert(p.event() == XMLStreamParser::EndAttribute);
+		poco_assert(p.next() == XMLStreamParser::EndAttribute);
+
+		poco_assert(p.peek() == XMLStreamParser::Characters && p.value() == "x");
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == "x");
+		poco_assert(p.event() == XMLStreamParser::Characters && p.value() == "x");
+
+		poco_assert(p.peek() == XMLStreamParser::StartElement);
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		poco_assert(p.event() == XMLStreamParser::StartElement);
+
+		poco_assert(p.peek() == XMLStreamParser::EndElement);
+		poco_assert(p.next() == XMLStreamParser::EndElement);
+		poco_assert(p.event() == XMLStreamParser::EndElement);
+
+		poco_assert(p.peek() == XMLStreamParser::EndElement);
+		poco_assert(p.next() == XMLStreamParser::EndElement);
+		poco_assert(p.event() == XMLStreamParser::EndElement);
+
+		poco_assert(p.peek() == XMLStreamParser::Eof);
+		poco_assert(p.next() == XMLStreamParser::Eof);
+		poco_assert(p.event() == XMLStreamParser::Eof);
+	}
+
+	// Test content processing.
+	//
+
+	// empty
+	//
+	{
+		istringstream is("<root x=' x '>  \n\t </root>");
+		XMLStreamParser p(is, "empty", XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_ATTRIBUTES_EVENT);
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.content(Content::Empty);
+		poco_assert(p.next() == XMLStreamParser::StartAttribute);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == " x ");
+		poco_assert(p.next() == XMLStreamParser::EndAttribute);
+		poco_assert(p.next() == XMLStreamParser::EndElement);
+		poco_assert(p.next() == XMLStreamParser::Eof);
+	}
+
+	try
+	{
+		istringstream is("<root>  \n &amp; X \t </root>");
+		XMLStreamParser p(is, "empty");
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.content(Content::Empty);
+		p.next();
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	// simple
+	//
+	{
+		istringstream is("<root> X </root>");
+		XMLStreamParser p(is, "simple");
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.content(Content::Simple);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == " X ");
+		poco_assert(p.next() == XMLStreamParser::EndElement);
+		poco_assert(p.next() == XMLStreamParser::Eof);
+	}
+
+	try
+	{
+		istringstream is("<root> ? <nested/></root>");
+		XMLStreamParser p(is, "simple");
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.content(Content::Simple);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == " ? ");
+		p.next();
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	{
+		// Test content accumulation in simple content.
+		//
+		istringstream is("<root xmlns:a='a'>1&#x32;3</root>");
+		XMLStreamParser p(is, "simple", XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_NAMESPACE_DECLS);
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.nextExpect(XMLStreamParser::StartNamespaceDecl);
+		p.content(Content::Simple);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == "123");
+		p.nextExpect(XMLStreamParser::EndNamespaceDecl);
+		poco_assert(p.next() == XMLStreamParser::EndElement);
+		poco_assert(p.next() == XMLStreamParser::Eof);
+	}
+
+	try
+	{
+		// Test error handling in accumulation in simple content.
+		//
+		istringstream is("<root xmlns:a='a'>1&#x32;<nested/>3</root>");
+		XMLStreamParser p(is, "simple", XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_NAMESPACE_DECLS);
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.nextExpect(XMLStreamParser::StartNamespaceDecl);
+		p.content(Content::Simple);
+		p.next();
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	// complex
+	//
+	{
+		istringstream is("<root x=' x '>\n"
+				"  <nested>\n"
+				"    <inner/>\n"
+				"    <inner> X </inner>\n"
+				"  </nested>\n"
+				"</root>\n");
+		XMLStreamParser p(is, "complex", XMLStreamParser::RECEIVE_DEFAULT | XMLStreamParser::RECEIVE_ATTRIBUTES_EVENT);
+
+		poco_assert(p.next() == XMLStreamParser::StartElement); // root
+		p.content(Content::Complex);
+
+		poco_assert(p.next() == XMLStreamParser::StartAttribute);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == " x ");
+		poco_assert(p.next() == XMLStreamParser::EndAttribute);
+
+		poco_assert(p.next() == XMLStreamParser::StartElement); // nested
+		p.content(Content::Complex);
+
+		poco_assert(p.next() == XMLStreamParser::StartElement); // inner
+		p.content(Content::Empty);
+		poco_assert(p.next() == XMLStreamParser::EndElement);   // inner
+
+		poco_assert(p.next() == XMLStreamParser::StartElement); // inner
+		p.content(Content::Simple);
+		poco_assert(p.next() == XMLStreamParser::Characters && p.value() == " X ");
+		poco_assert(p.next() == XMLStreamParser::EndElement);   // inner
+
+		poco_assert(p.next() == XMLStreamParser::EndElement);   // nested
+		poco_assert(p.next() == XMLStreamParser::EndElement);   // root
+		poco_assert(p.next() == XMLStreamParser::Eof);
+	}
+
+	try
+	{
+		istringstream is("<root> \n<n/> X <n> X </n>  </root>");
+		XMLStreamParser p(is, "complex");
+
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		p.content(Content::Complex);
+		poco_assert(p.next() == XMLStreamParser::StartElement);
+		poco_assert(p.next() == XMLStreamParser::EndElement);
+		p.next();
+		poco_assert(false);
+	} catch (const Poco::Exception&)
+	{
+		// cerr << e.what () << endl;
+	}
+
+	// Test element with simple content helpers.
+	//
+	{
+		istringstream is("<root>"
+				"  <nested>X</nested>"
+				"  <nested/>"
+				"  <nested>123</nested>"
+				"  <nested>Y</nested>"
+				"  <t:nested xmlns:t='test'>Z</t:nested>"
+				"  <nested>234</nested>"
+				"  <t:nested xmlns:t='test'>345</t:nested>"
+				"  <nested>A</nested>"
+				"  <t:nested xmlns:t='test'>B</t:nested>"
+				"  <nested1>A</nested1>"
+				"  <t:nested1 xmlns:t='test'>B</t:nested1>"
+				"  <nested>1</nested>"
+				"  <t:nested xmlns:t='test'>2</t:nested>"
+				"  <nested1>1</nested1>"
+				"  <t:nested1 xmlns:t='test'>2</t:nested1>"
+				"</root>");
+		XMLStreamParser p(is, "element");
+
+		p.nextExpect(XMLStreamParser::StartElement, "root", Content::Complex);
+
+		p.nextExpect(XMLStreamParser::StartElement, "nested");
+		poco_assert(p.element() == "X");
+
+		p.nextExpect(XMLStreamParser::StartElement, "nested");
+		poco_assert(p.element() == "");
+
+		p.nextExpect(XMLStreamParser::StartElement, "nested");
+		poco_assert(p.element<unsigned int>() == 123);
+
+		poco_assert(p.element("nested") == "Y");
+		poco_assert(p.element(QName("test", "nested")) == "Z");
+
+		poco_assert(p.element<unsigned int>("nested") == 234);
+		poco_assert(p.element<unsigned int>(QName("test", "nested")) == 345);
+
+		poco_assert(p.element("nested", "a") == "A");
+		poco_assert(p.element(QName("test", "nested"), "b") == "B");
+
+		poco_assert(p.element("nested", "a") == "a" && p.element("nested1") == "A");
+		poco_assert(p.element(QName("test", "nested"), "b") == "b" && p.element(QName("test", "nested1")) == "B");
+
+		poco_assert(p.element<unsigned int>("nested", 10) == 1);
+		poco_assert(p.element<unsigned int>(QName("test", "nested"), 20) == 2);
+
+		poco_assert(p.element<unsigned int>("nested", 10) == 10 && p.element<unsigned int>("nested1") == 1);
+		poco_assert(p.element<unsigned int>(QName("test", "nested"), 20) == 20 && p.element<unsigned int>(QName("test", "nested1")) == 2);
+
+		p.nextExpect(XMLStreamParser::EndElement);
+	}
+
+	// Test the iterator interface.
+	//
+	{
+		istringstream is("<root><nested>X</nested></root>");
+		XMLStreamParser p(is, "iterator");
+
+		vector<XMLStreamParser::EventType> v;
+
+		for (XMLStreamParser::Iterator i(p.begin()); i != p.end(); ++i)
+			v.push_back(*i);
+
+		//for (XMLStreamParser::EventType e: p)
+		//  v.push_back (e);
+
+		poco_assert(v.size() == 5);
+		poco_assert(v[0] == XMLStreamParser::StartElement);
+		poco_assert(v[1] == XMLStreamParser::StartElement);
+		poco_assert(v[2] == XMLStreamParser::Characters);
+		poco_assert(v[3] == XMLStreamParser::EndElement);
+		poco_assert(v[4] == XMLStreamParser::EndElement);
+	}
+
+	// Test space extraction into the std::string value.
+	//
+	{
+		istringstream is("<root a=' a '> b </root>");
+		XMLStreamParser p(is, "test");
+		p.nextExpect(XMLStreamParser::StartElement, "root");
+		poco_assert(p.attribute<std::string>("a") == " a ");
+		p.nextExpect(XMLStreamParser::Characters);
+		poco_assert(p.value<std::string>() == " b ");
+		p.nextExpect(XMLStreamParser::EndElement);
+	}
+}
+
+void XMLStreamParserTestSuite::setUp()
+{
+}
+
+void XMLStreamParserTestSuite::tearDown()
+{
+}
+
+CppUnit::Test* XMLStreamParserTestSuite::suite()
+{
+	CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("XMLStreamParserTestSuite");
+
+	CppUnit_addTest(pSuite, XMLStreamParserTestSuite, testParser);
+
+	return pSuite;
+}

XML/testsuite/src/XMLStreamParserTestSuite.h

@@ -0,0 +1,40 @@
+//
+// XMLStreamParserTestSuite.h
+//
+// $Id: //poco/1.4/XML/testsuite/src/XMLStreamParserTestSuite.h#2 $
+//
+// Definition of the XMLStreamParserTestSuite class.
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef XMLStreamParserTestSuite_INCLUDED
+#define XMLStreamParserTestSuite_INCLUDED
+
+
+#include "Poco/XML/XML.h"
+#include "CppUnit/TestCase.h"
+
+
+class XMLStreamParserTestSuite: public CppUnit::TestCase
+{
+public:
+	XMLStreamParserTestSuite(const std::string& name);
+	~XMLStreamParserTestSuite();
+
+	void testParser();
+
+	void setUp();
+	void tearDown();
+
+	static CppUnit::Test* suite();
+
+private:
+};
+
+
+#endif // XMLStreamParserTestSuite_INCLUDED

XML/testsuite/src/XMLTestSuite.cpp

@@ -16,7 +16,7 @@
 #include "XMLWriterTest.h"
 #include "SAXTestSuite.h"
 #include "DOMTestSuite.h"
-
+#include "XMLStreamParserTestSuite.h"
 
 CppUnit::Test* XMLTestSuite::suite()
 {
@@ -27,6 +27,7 @@ CppUnit::Test* XMLTestSuite::suite()
 	pSuite->addTest(XMLWriterTest::suite());
 	pSuite->addTest(SAXTestSuite::suite());
 	pSuite->addTest(DOMTestSuite::suite());
+	pSuite->addTest(XMLStreamParserTestSuite::suite());
 
 	return pSuite;
 }