public virtual void StartPrefixMapping(string prefix, string uri)
{
if (_contentHandler != null)
{
_contentHandler.StartPrefixMapping(prefix, uri);
}
}
private void declarePrefix(string prefix, string uri)
{
int index = uri.IndexOf(':');
// many versions of nwalsh docbook stylesheets
// have bogus URLs; so this can't be an error...
if (index < 1 && uri.Length != 0)
{
warn("relative URI for namespace: " + uri);
}
// FIXME: char [0] must be ascii alpha; chars [1..index]
// must be ascii alphanumeric or in "+-." [RFC 2396]
uri = string.Intern(uri);
if (namespaceSupport.DeclarePrefix(prefix, uri))
{
contentHandler.StartPrefixMapping(prefix, uri);
}
}
public virtual void Attribute(string aname, string value, bool isSpecified)
{
// Code changed by MHK 16 April 2001.
// The only safe thing to do is to process all the namespace declarations
// first, then process the ordinary attributes. So if this is a namespace
// declaration, we deal with it now, otherwise we save it till we get the
// startElement call.
if (_attributeCount++ == 0)
{
if (_namespaces)
{
_prefixStack.PushContext();
}
}
// set nsTemp [0] == namespace URI (or empty)
// set nsTemp [1] == local name (or empty)
if (value == null)
{
// MHK: I think this can only happen on an error recovery path
// MHK: I was wrong: AElfred was notifying null values of attribute
// declared in the DTD as #IMPLIED. But I've now changed it so it doesn't.
return;
}
if (_namespaces && aname.StartsWith("xmlns"))
{
if (aname.Length == 5)
{
_prefixStack.DeclarePrefix("", value);
//System.err.println("Declare default prefix = "+value);
_contentHandler.StartPrefixMapping("", value);
}
else if (aname[5] == ':' && !aname.Equals("xmlns:xml"))
{
if (aname.Length == 6)
{
_errorHandler.Error(new SAXParseException("Missing namespace prefix in namespace declaration: " + aname,
this));
return;
}
string prefix = aname.Substring(6);
if (value.Length == 0)
{
_errorHandler.Error(new SAXParseException("Missing URI in namespace declaration: " + aname, this));
return;
}
_prefixStack.DeclarePrefix(prefix, value);
//System.err.println("Declare prefix " +prefix+"="+value);
_contentHandler.StartPrefixMapping(prefix, value);
}
if (!_xmlNames)
{
// if xmlNames option wasn't selected,
// we don't report xmlns:* declarations as attributes
return;
}
}
_attributeNames.Add(aname);
_attributeValues.Add(value);
}
public virtual void Parse(TextReader text)
{
Stack nsstack = new Stack();
Locator locator = new Locator();
SAXParseException saxException = new SAXParseException();
Attributes atts = new Attributes();
XmlTextReader reader = null;
try
{
reader = new XmlTextReader(text);
object nsuri = reader.NameTable.Add(
"http://www.w3.org/2000/xmlns/");
handler.StartDocument();
while (reader.Read())
{
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
{
atts.AddAttribute(reader.NamespaceURI, reader.Name, reader.Name, reader.GetType().ToString(), reader.Value);
}
}
reader.MoveToElement();
Handler.StartElement(reader.NamespaceURI, reader.LocalName, reader.Name, atts);
if (reader.IsEmptyElement)
{
handler.EndElement(reader.NamespaceURI, reader.LocalName, reader.Name);
}
break;
case XmlNodeType.EndElement:
handler.EndElement(reader.NamespaceURI, reader.LocalName, reader.Name);
while (prefix != null)
{
handler.EndPrefixMapping(prefix);
prefix = (string)nsstack.Pop();
}
break;
case XmlNodeType.Text:
handler.Characters(reader.Value.ToCharArray(), 0, reader.Value.Length);
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;
}
} //While
handler.EndDocument();
} //try
catch (Exception exception)
{
saxException.LineNumber = reader.LineNumber;
saxException.SystemID = "";
saxException.setMessage(exception.GetBaseException().ToString());
errorHandler.Error(saxException);
}
finally
{
if (reader.ReadState != ReadState.Closed)
{
reader.Close();
}
}
} //parse()
