public static string Parse(string input, List <IToken> tokens)
{
var token = ParseUtilities.EatWhiteSpace(input);
var position = token.IndexOf(':');
if (position == 0)
{
tokens.Add(new AssignmentToken());
return(token.Substring(position + 1));
}
return(input);
}
public static string Parse(string input, List <IToken> tokens)
{
var token = ParseUtilities.EatWhiteSpace(input);
var length = token.IndexOf(' ') > 0 ? token.IndexOf(' ') : token.Length;
if (token.Length > 0 && char.IsLetter(token[0]))
{
tokens.Add(new SymbolToken(input.Substring(0, length)));
return(token.Substring(length));
}
return(input);
}
public static string Parse(string input, List <IToken> tokens)
{
var token = ParseUtilities.EatWhiteSpace(input);
var startPosition = token.IndexOf('(');
var endPosition = token.IndexOf(')');
if (startPosition == 0 && endPosition > (startPosition + 1))
{
tokens.Add(new SymbolDefinitionToken(token.Substring(startPosition, endPosition - startPosition + 1).Trim(new char[] { '(', ')' })));
return(token.Substring(endPosition + 1));
}
return(input);
}
public static string Parse(string input, List <IToken> tokens)
{
var token = ParseUtilities.EatWhiteSpace(input);
var start = 0;
var length = 0;
for (var i = 1; i <= token.Length; i++)
{
if (double.TryParse(token.Substring(0, i), out var number))
{
length = i;
}
}
if (length > start)
{
tokens.Add(new NumberToken(double.Parse(token.Substring(0, length))));
return(token.Substring(length));
}
return(input);
}