// Read a doctype declaration.
//
// Already read: '<!DOCTYPE'
public void Read()
{
// turn off pe scanning
input.ScanForPE = false;
// require whitespace, then read the name
if (!input.SkipWhitespace())
{
Error(/* TODO */);
}
context.DocTypeName = input.ReadName();
// value of internal subset defaults to empty
context.InternalSubset = String.Empty;
// values of the public and system ids default to empty
context.PublicId = String.Empty;
context.SystemId = String.Empty;
// check for an external id
bool hasWS = input.SkipWhitespace();
if (!input.PeekChar())
{
Error("Xml_UnexpectedEOF");
}
if (input.peekChar == 'S' || input.peekChar == 'P')
{
// external id must be preceded by whitespace
if (!hasWS)
{
Error(/* TODO */);
}
// allow only an external id, not a public id
ReadExternalOrPublicID(false, true);
// skip potentially optional whitespace
hasWS = input.SkipWhitespace();
// get the peekChar ready for internal subset check
if (!input.PeekChar())
{
Error("Xml_UnexpectedEOF");
}
}
// check for an internal subset
if (input.peekChar == '[')
{
// internal subset must be preceded by whitespace
if (!hasWS)
{
Error(/* TODO */);
}
// move input to '['
input.NextChar();
// push the internal subset log onto the log stack
input.Logger.Push(new StringBuilder());
// read the internal subset
ReadInternalSubset();
// get the internal subset from the log and pop it from the logger
context.InternalSubset = input.Logger.Pop().ToString();
// skip optional whitespace
input.SkipWhitespace();
}
// the dtd must end with '>' at this point
input.Expect('>');
}
