public string Run(string text)
{
if (String.IsNullOrEmpty(text))
{
return(null);
}
command += text;
switch (CheckBrackets(command))
{
case BracketsCheckResult.OK:
var exp = _factory.Create(command);
command = "";
EvalResult result = exp.Eval(_env);
if (result.Success)
{
ScmExpression resultExp = exp.Eval(_env).Value;
return((resultExp as SelfEvaluatingExpression).ToString());
}
else
{
return(result.ErrorMessage);
}
case BracketsCheckResult.TooMuch:
command = "";
return("Too many closing brackets");
default:
command += " ";
return(null);
}
}
public static EvalResult ToResult(this ScmExpression exp)
{
return(EvalResult.From(exp));
}