public static RuleCallbackPair Token(Action <Token> onMatched)
{
var rule = new SingleTokenParser(t => RuleResult.Complete(t));
return(new RuleCallbackPair(() => rule, Wrapper));
void Wrapper(object node)
{
onMatched((Token)node);
}
}
public static RuleCallbackPair Token(TokenType type, string content)
{
var rule = new SingleTokenParser(t =>
{
if (t.Type == type && t.Content == content)
{
return(RuleResult.Complete(t));
}
string errMsg = $"Expected the {type} \"{content}\", but got the {t.Type} \"{t.Content}\"";
return(RuleResult.Failed(t.Position, errMsg));
});
return(new RuleCallbackPair(() => rule, BlankCallback));
void BlankCallback(object node)
{
}
}
public static RuleCallbackPair Token(TokenType type, Action <string> onMatched)
{
var rule = new SingleTokenParser(t =>
{
if (t.Type == type)
{
return(RuleResult.Complete(t));
}
string errMsg = $"Expected a {type}, but got the {t.Type} \"{t.Content}\"";
return(RuleResult.Failed(t.Position, errMsg));
});
return(new RuleCallbackPair(() => rule, Wrapper));
void Wrapper(object node)
{
var token = (Token)node;
onMatched(token.Content);
}
}