/// <summary>
/// Test method used during development
/// </summary>
/// <param name="scanner"></param>
/// <param name="output"></param>
private static void ReadAll(Scanner scanner, TextWriter output)
{
int token = None;
while (token != Eof)
{
scanner.NextToken();
token = scanner.CurrentToken;
#if DEBUG
switch (token)
{
case Eol:
output.WriteLine("[EOL]");
break;
case Level:
output.WriteLine("[LEVEL] {" + new string(scanner.Lexeme) + "}");
break;
case Tag:
output.WriteLine("[TAG] {" + new string(scanner.Lexeme) + "}");
break;
case Xref:
output.WriteLine("[XREF] {" + new string(scanner.Lexeme) + "}");
break;
case Eof:
output.WriteLine("[EOF]");
break;
case Text:
output.WriteLine("[TEXT] {" + new string(scanner.Lexeme) + "}");
break;
default:
output.WriteLine("[UNKNOWN] {" + new string(scanner.Lexeme) + "}");
break;
}
#endif
}
}
/// <summary>
/// Test method used during development
/// </summary>
/// <param name="scanner"></param>
/// <param name="output"></param>
private static void ReadAll(Scanner scanner, TextWriter output)
{
int token = None;
while (token != Eof)
{
scanner.NextToken();
token = scanner.CurrentToken;
#if DEBUG
switch(token) {
case Eol:
output.WriteLine("[EOL]");
break;
case Level:
output.WriteLine("[LEVEL] {" + new string(scanner.Lexeme) + "}");
break;
case Tag:
output.WriteLine("[TAG] {" + new string(scanner.Lexeme) + "}");
break;
case Xref:
output.WriteLine("[XREF] {" + new string(scanner.Lexeme) + "}");
break;
case Eof:
output.WriteLine("[EOF]" );
break;
case Text:
output.WriteLine("[TEXT] {" + new string(scanner.Lexeme) + "}");
break;
default:
output.WriteLine("[UNKNOWN] {" + new string(scanner.Lexeme) + "}");
break;
}
#endif
}
}
/// <summary>
/// Reads a line of tokens and places the corresponding XML nodes into a queue
///
/// Good candidate for performance improvements
/// GEDCOMReader is actually faster than XmlReader. However, it allocates more strings
/// and these are objects, so the GC has to do more work. - Since the char[] rewrite, this may
/// no longer be true
/// </summary>
private void ReadLine()
{
_attributes.Clear();
while (true)
{
_scanner.NextToken();
switch (_scanner.CurrentToken)
{
case Scanner.Level:
Debug.Assert(_nodeQueue.Count == 0, "Unexpected level token");
int depth = Convert.ToInt32(new string(_scanner.Lexeme)) + 2;
while (depth <= _nodeStack.Count)
{
// Inject EndTag nodes into the queue
_nodeQueue.Enqueue(new TokenInfo(XmlNodeType.EndElement, _nodeStack.Pop()));
}
break;
case Scanner.Tag:
// add node to queue
// don't know whether next token is text or xref
_nodeQueue.Enqueue(new TokenInfo(XmlNodeType.Element, _scanner.Lexeme)); //_scanner.LexemeNT));
break;
case Scanner.Xref:
// add node to attribute collection
switch (SneakyPeek(_nodeQueue).Type)
{
case XmlNodeType.Element:
_attributes.Add(new GedcomAttribute(GedcomAttributeType.Ref, _scanner.Lexeme));
break;
case XmlNodeType.None:
case XmlNodeType.EndElement:
_attributes.Add(new GedcomAttribute(GedcomAttributeType.Id, _scanner.Lexeme));
break;
}
break;
case Scanner.Text:
// add node to queue
_nodeQueue.Enqueue(new TokenInfo(XmlNodeType.Text, _scanner.Lexeme));
break;
case Scanner.Escape:
// add node to queue
_nodeQueue.Enqueue(new TokenInfo(XmlNodeType.ProcessingInstruction, _scanner.Lexeme)); //_scanner.LexemeNT));
break;
case Scanner.Eol:
return;
case Scanner.Eof:
while (_nodeStack.Count != 0)
{
// Inject EndTag nodes into the queue
_nodeQueue.Enqueue(new TokenInfo(XmlNodeType.EndElement, _nodeStack.Pop()));
}
return;
default:
throw new GedcomException("UNEXPECTED TOKEN '" + _scanner.Lexeme + "'", _scanner.Lexeme[0], LinePosition, LineNumber);
}
}
}
