public virtual void parse(Reader @in, ContentHandler handler)
{
StringBuilder buffer = new StringBuilder();
bool isInsideTag = false;
bool isStartTag = true;
int lastChar = -1;
int c;
while ((c = @in.read()) != -1)
{
if ('<' == c)
{
if (isInsideTag)
{
throw new InvalidFormatException("Did not expect < char!");
}
if (buffer.ToString().Trim().Length > 0)
{
handler.characters(buffer.ToString().Trim());
}
buffer.Length = 0;
isInsideTag = true;
isStartTag = true;
}
buffer.appendCodePoint(c);
if ('/' == c && lastChar == '<')
{
isStartTag = false;
}
if ('>' == c)
{
if (!isInsideTag)
{
throw new InvalidFormatException("Did not expect > char!");
}
if (isStartTag)
{
handler.startElement(extractTagName(buffer), getAttributes(buffer));
}
else
{
handler.endElement(extractTagName(buffer));
}
buffer.Length = 0;
isInsideTag = false;
}
lastChar = c;
}
if (isInsideTag)
{
throw new InvalidFormatException("Did not find matching > char!");
}
}
public void parse(string url)
{
int buflen = 500;
char[] buffer = new char[buflen];
Stack nsstack = new Stack();
Locator locator = new Locator();
SAXParseException saxException = new SAXParseException();
Attributes atts;
XmlTextReader reader = null;
try {
reader = new XmlTextReader(url);
object nsuri = reader.NameTable.Add("http://www.w3.org/2000/xmlns/");
Handler.startDocument();
while (reader.Read())
{
int len;
string prefix;
locator.LineNumber = reader.LineNumber;
locator.ColumnNumber = reader.LinePosition;
Handler.setDocumentLocator(locator);
switch (reader.NodeType)
{
case XmlNodeType.Element:
nsstack.Push(null); //marker
atts = new Attributes();
while (reader.MoveToNextAttribute())
{
if (reader.NamespaceURI.Equals(nsuri))
{
prefix = "";
if (reader.Prefix == "xmlns")
{
prefix = reader.LocalName;
}
nsstack.Push(prefix);
Handler.startPrefixMapping(prefix, reader.Value);
}
else
{
SaxAttribute newAtt = new SaxAttribute();
newAtt.Name = reader.Name;
newAtt.NamespaceURI = reader.NamespaceURI;
newAtt.Value = reader.Value;
atts.attArray.Add(newAtt);
}
}
reader.MoveToElement();
Handler.startElement(reader.NamespaceURI,
reader.LocalName, reader.Name, atts.TrimArray());
if (reader.IsEmptyElement)
{
Handler.endElement(reader.NamespaceURI,
reader.LocalName, reader.Name);
}
break;
case XmlNodeType.EndElement:
Handler.endElement(reader.NamespaceURI,
reader.LocalName, reader.Name);
prefix = (string)nsstack.Pop();
while (prefix != null)
{
Handler.endPrefixMapping(prefix);
prefix = (string)nsstack.Pop();
}
break;
case XmlNodeType.Text:
while ((len = reader.ReadChars(buffer, 0, buflen)) > 0)
{
Handler.characters(buffer, 0, len);
}
//After read your are automatically put on the next tag so you
//have to call the proper case from here or it won't work correctly.
if (reader.NodeType == XmlNodeType.Element)
{
goto case XmlNodeType.Element;
}
if (reader.NodeType == XmlNodeType.EndElement)
{
goto case XmlNodeType.EndElement;
}
break;
case XmlNodeType.ProcessingInstruction:
Handler.processingInstruction(reader.Name, reader.Value);
break;
case XmlNodeType.Whitespace:
char[] whiteSpace = reader.Value.ToCharArray();
Handler.ignorableWhitespace(whiteSpace, 0, 1);
break;
case XmlNodeType.Entity:
Handler.skippedEntity(reader.Name);
break;
}
}
Handler.endDocument();
} //try
catch (Exception exception) {
saxException.LineNumber = reader.LineNumber.ToString();
saxException.SystemID = "";
saxException.Message = exception.GetBaseException().ToString();
errorHandler.error(saxException);
} finally {
if (reader.ReadState != ReadState.Closed)
{
reader.Close();
}
}
}
