public void AddTernaryOperator(string pattern1, string pattern2, int precedence, OperatorAssociativity associativity, TokenEvaluator evaluator)
{
TokenDefinition root = new TokenDefinition(TokenType.TernaryOperator, evaluator);
TokenDefinition partial1 = new TokenDefinition(TokenType.TernaryOperator1, precedence, associativity, pattern1);
TokenDefinition partial2 = new TokenDefinition(TokenType.TernaryOperator2, precedence, associativity, pattern2);
partial1.Root = root;
partial2.Root = root;
AddTokenDefinition(partial1);
AddTokenDefinition(partial2);
}
private void AddTokenDefinition(TokenDefinition tokenDefinition, TokenEvaluator evaluator)
{
tokenDefinition.Evaluator = evaluator;
TokenDefinition existing = _TokenDefinitions.Find(delegate(TokenDefinition td)
{
return(td.Pattern == tokenDefinition.Pattern && !string.IsNullOrEmpty(td.Pattern));
});
if (existing != null)
{
existing.Alternate = tokenDefinition;
}
else
{
_TokenDefinitions.Add(tokenDefinition);
}
}
internal Token(TokenDefinition tokenDefinition, string text)
{
_text = text;
_tokenDefinition = tokenDefinition;
switch (tokenDefinition.Type)
{
case TokenType.TernaryOperator: NumTerms = 3; break;
case TokenType.UnaryOperator: NumTerms = 1; break;
case TokenType.Operator: NumTerms = 2; break;
}
if (_tokenDefinition.Alternate != null)
{
_alternate = new Token(_tokenDefinition.Alternate, text);
}
}
private void AddTokenDefinition(TokenDefinition tokenDefinition)
{
AddTokenDefinition(tokenDefinition, null);
}