public static IContentNode CreateValue(this DslToken token)
{
switch (token.TokenType)
{
case TokenType.DateTime: return(new ContentDateTime(DateTime.Parse(token.Value, null, DateTimeStyles.RoundtripKind)));
case TokenType.String: return(new ContentText(token.Value.Substring(1, token.Value.Length - 2)));
case TokenType.Number: return(new ContentNumber(decimal.Parse(token.Value)));
case TokenType.Null: return(ContentNull.Singleton);
case TokenType.TrueLiteral: return(new ContentBoolean(true));
case TokenType.FalseLiteral: return(new ContentBoolean(false));
default: throw new ParserException($"Unexpected token", token);
}
}
public ParserException(string message, DslToken token)
: base($"{message}{(token == null? string.Empty : $"(at character {token.Match.StartIndex}" )})")
ConstantExpression CreateConstant(DslToken token)
{
return(new ConstantExpression(token.CreateValue()));
}
public static bool IsConstant(this DslToken token)
{
return(ConstantTokens.Contains(token.TokenType));
}