Initial commit

ZUtil/ZXMLWriter.cpp

@@ -0,0 +1,96 @@
+#include <ZUtil/ZXMLWriter.hpp>
+
+#define APPEND_NEWLINE \
+		if (_useNewlines) { \
+			ZStringAlgo::Append(_output, LINE_TERMINATOR); \
+		} \
+
+const ZString& ZXMLWriter::GetErrorString()
+{
+	return ErrorMessage;
+}
+
+bool ZXMLWriter::writeAttributes(ZString& _output, const ZKVTree::Iterator& _itr) 
+{
+	bool found_sub = false;						// indicates we have sub-elements
+
+	for (size_t i = 0; i < _itr.GetChildCount(); i++) {
+
+		const ZKVTree::Iterator itr = _itr.ChildItr(i);
+
+		if (itr.GetChildCount() > 0) {			// attributes have no children
+			found_sub = true;
+			continue;
+		}
+
+		const ZString& name = itr.GetName();	// attrib name
+		const ZString& val  = itr.GetValue();	// attrib value
+
+		_output.PushBack(' ');					// start with a space
+		ZStringAlgo::Append(_output, name);		// append attribute name
+		_output.PushBack('=');					// equals
+		_output.PushBack('\"');					// escaped quote
+		ZStringAlgo::Append(_output, val);		// attribute value
+		_output.PushBack('\"');					// escaped quote
+	}
+
+	return found_sub;
+}
+
+bool ZXMLWriter::writeElements(ZString& _output, bool _useNewlines, const ZKVTree::Iterator& _itr)
+{
+	if (_itr.GetChildCount() == 0) {					// indicates an attribute
+		return true;
+	}
+
+	const ZString& name = _itr.GetName();				// element name
+	const ZString& val  = _itr.GetValue();				// element value
+
+	_output.PushBack('<');								// open tag
+	ZStringAlgo::Append(_output, name);					// element name
+
+	bool found_sub = writeAttributes(_output, _itr);	// write all attributes
+
+	if (val.Empty() && !found_sub) {					// close the tag, no body, no sub-elements
+		_output.PushBack('/');
+		_output.PushBack('>');
+
+		APPEND_NEWLINE;
+
+	} else {											// keep tag open for sub-elements and body
+		_output.PushBack('>');
+
+		APPEND_NEWLINE;
+
+		// write all sub-elements (this does nothing on an attribute)
+		for (size_t i = 0; i < _itr.GetChildCount(); i++) {		
+			writeElements(_output, _useNewlines, _itr.ChildItr(i));
+		}
+
+		if (!val.Empty()) {
+			ZStringAlgo::Append(_output, val);			// write element body
+			APPEND_NEWLINE;
+		}
+
+		_output.PushBack('<');							// closing tag begin
+		_output.PushBack('/');
+		ZStringAlgo::Append(_output, name);
+		_output.PushBack('>');							// closing tag end
+
+		APPEND_NEWLINE;
+	}
+	
+	return true;
+}
+
+bool ZXMLWriter::Write( const ZKVTree& _input, ZString& _output, bool _useNewlines )
+{	
+	ZKVTree::Iterator itr = _input.Begin();
+
+	if (itr == _input.End()) {
+		ErrorMessage = "ZXMLWriter: key value tree has no data!";
+		return false;
+	}
+	
+	return writeElements(_output, _useNewlines, itr);
+}