protected object Expect(ParseRule rule, string message = null, ParseRule recoveryRule = null)
{
object result = ParseObject(rule);
if (result == null)
{
if (message == null)
{
message = rule.GetMethodInfo().Name;
}
string butSaw;
string lineRemainder = LineRemainder();
if (lineRemainder == null || lineRemainder.Length == 0)
{
butSaw = "end of line";
}
else
{
butSaw = "'" + lineRemainder + "'";
}
Error("Expected " + message + " but saw " + butSaw);
if (recoveryRule != null)
{
result = recoveryRule();
}
}
return(result);
}