public SimpleElement parse(XmlTextReader reader)
{
SimpleElement se = null;
this.Reader = reader;
while (!Reader.EOF)
{
Reader.Read();
switch (Reader.NodeType)
{
case XmlNodeType.Element :
// create a new SimpleElement
se = new SimpleElement(Reader.LocalName);
currentElement = se;
if (elements.Count == 0)
{
rootElement = se;
elements.Push(se);
}
else
{
SimpleElement parent = (SimpleElement) elements.Peek();
parent.ChildElements.Add(se);
// don['t push empty elements onto the stack
if (Reader.IsEmptyElement) // ends with "/>"
{
break;
}
else {
elements.Push(se);
}
}
if (Reader.HasAttributes)
{
while(Reader.MoveToNextAttribute())
{
currentElement.setAttribute(Reader.Name,Reader.Value);
}
}
break;
case XmlNodeType.Attribute :
se.setAttribute(Reader.Name,Reader.Value);
break;
case XmlNodeType.EndElement :
//pop the top element
elements.Pop();
break;
case XmlNodeType.Text :
currentElement.Text=Reader.Value;
break;
case XmlNodeType.CDATA :
currentElement.Text=Reader.Value;
break;
default :
// ignore
break;
}
}
return rootElement;
}
private static void printTree(SimpleElement se, StringBuilder sb, int depth)
{
sb.Append(new string('\t',depth) + "<" + se.TagName);
foreach (string attName in se.Attributes.Keys) {
sb.Append(" " + attName + "=" + "\"" + se.Attribute(attName) + "\"");
}
sb.Append(">" + se.Text.Trim());
if (se.ChildElements.Count > 0)
{
sb.Append(System.Environment.NewLine);
depth +=1;
foreach(SimpleElement ch in se.ChildElements)
{
//sb.Append(System.Environment.NewLine);
printTree(ch, sb, depth);
}
depth -= 1;
sb.Append(new string('\t',depth) + "</" + se.TagName + ">" + System.Environment.NewLine);
}
else
{
sb.Append("</" + se.TagName + ">" + System.Environment.NewLine);
}
}
static void Main()
{
int starttick;
int endtick;
int i;
XmlTextReader rdr;
StringBuilder sb;
SimpleElement se = new SimpleElement("junk");
SimpleDOMParser sdp;
sb = new StringBuilder();
try
{
starttick = System.Environment.TickCount;
for (i=0; i < 10; i++)
{
rdr = new XmlTextReader(@"c:\rjones\temp\employees.xml");
sdp = new SimpleDOMParser();
se = sdp.parse(rdr);
rdr.Close();
}
endtick = System.Environment.TickCount;
sb = new StringBuilder();
printTree(se, sb, 0);
System.Diagnostics.Debug.WriteLine(sb.ToString());
System.Diagnostics.Debug.WriteLine(endtick - starttick);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
public SimpleDOMParser()
{
elements = new Stack();
currentElement = null;
}
public void Add(SimpleElement se)
{
this.List.Add(se);
}
