private void ParseSingleToken(ref Token currentToken, string line)
{
var expression = new Regex(@"(.+):(.*)");
var cMatch = expression.Match(line);
if (cMatch.Success)
{
ComputeSimpleToken(cMatch,ref currentToken);
}
}
public TokenNode Parse(Stream value)
{
var rootNode = new TokenNode();
var tokenStack = new Stack<TokenNode>();
using (var reader = new StreamReader(value))
{
string line = "";
while ((line = reader.ReadLine()) != null)
{
if (line.StartsWith(" "))
{
tokenStack.Peek().Tokens.Last().Value.EncodedValue += line.Substring(1, line.Length - 1);
continue;
}
var currentToken = new Token();
ParseSingleToken(ref currentToken, line);
switch (currentToken.NamingKey)
{
case TokenBegin:
tokenStack.Push(new TokenNode{ Name = currentToken.Value.EncodedValue});
break;
case TokenEnd:
var endElement = tokenStack.Pop();
if (currentToken.Value.EncodedValue != endElement.Name)
throw new ParsingICalException();
if (tokenStack.Count == 0)
rootNode.Childs.Add(endElement);
else
tokenStack.Peek().Childs.Add(endElement);
break;
default:
tokenStack.Peek().Tokens.Add(currentToken);
break;
}
}
}
return rootNode;
}
/// <summary>
/// Schreibt ein Token in den Textwriter
/// </summary>
public static void WriteToken(Token token, TextWriter writer)
{
writer.WriteLine(token.Key + ":" + token.Value.EncodedValue);
}
private static void ComputeSimpleToken(Match cMatch, ref Token currentToken)
{
currentToken.Key = cMatch.Groups[1].Value;
currentToken.Value.EncodedValue = cMatch.Groups[2].Value;
}