Hello,
I must write a little parser (or scanner) for my own tag language; an example of it:
<html>
<head></head>
<body>
<using xmlns:namespace="myfile" />
myText
<p><namespace:myComponent Attribs="val"> //it crashes on 'namespace:myCOmponent'
</body>
</html>
<html>
<head></head>
<body>
<using xmlns:namespace="myfile" />
myText
<p><namespace:myComponent Attribs="val"> //it crashes on 'namespace:myCOmponent'
</body>
</html>
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As you can see there is a namaspace that is declared in a my own way (using the keyword 'using'); now, using XmlReader like it is, doens't work (exception occurs since standard XML needs a different namespace declaration);
so I must to know if there is a way to cope this problem; here below my parser and an attempt to cope that namespace (but it doesn't work at all):
public Parser(string fileContent) {
_settings.ConformanceLevel = ConformanceLevel.Fragment;
_settings.IgnoreWhitespace = true;
_settings.IgnoreComments = true;
_textReader = XmlReader.Create(fileContent, _settings);
_textReader.Read();
XmlNodeType nType = _textReader.NodeType;
while (_textReader.Read()) {
switch (_textReader.NodeType) {
case XmlNodeType.Element: // The node is an element.
Console.Write("<" + _textReader.Name);
Console.WriteLine(">");
if (_textReader.Name == "using") {
while (_textReader.MoveToNextAttribute()) { //attempt to do that
if (_textReader.Prefix == "xmlns") {
Console.WriteLine("<{0}:{1}>", _textReader.Prefix, _textReader.LocalName);
nsmanager = new XmlNamespaceManager(_textReader.NameTable);
nsmanager.AddNamespace(_textReader.LocalName, "mynamespace");
}
}
break;
case XmlNodeType.Text: //Display the text in each element.
Console.WriteLine(_textReader.Value);
break;
case XmlNodeType.EndElement: //Display the end of the element.
Console.Write("</" + _textReader.Name);
Console.WriteLine(">");
break;
}
}
public Parser(string fileContent) {
_settings.ConformanceLevel = ConformanceLevel.Fragment;
_settings.IgnoreWhitespace = true;
_settings.IgnoreComments = true;
_textReader = XmlReader.Create(fileContent, _settings);
_textReader.Read();
XmlNodeType nType = _textReader.NodeType;
while (_textReader.Read()) {
switch (_textReader.NodeType) {
case XmlNodeType.Element: // The node is an element.
Console.Write("<" + _textReader.Name);
Console.WriteLine(">");
if (_textReader.Name == "using") {
while (_textReader.MoveToNextAttribute()) { //attempt to do that
if (_textReader.Prefix == "xmlns") {
Console.WriteLine("<{0}:{1}>", _textReader.Prefix, _textReader.LocalName);
nsmanager = new XmlNamespaceManager(_textReader.NameTable);
nsmanager.AddNamespace(_textReader.LocalName, "mynamespace");
}
}
break;
case XmlNodeType.Text: //Display the text in each element.
Console.WriteLine(_textReader.Value);
break;
case XmlNodeType.EndElement: //Display the end of the element.
Console.Write("</" + _textReader.Name);
Console.WriteLine(">");
break;
}
}
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XmlTextReader in C#
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