nom

nom::expr_res! [−] [src]

macro_rules! expr_res (
  ($i:expr, $e:expr) => (
    {
      match $e {
        Ok(output) => $crate::IResult::Done($i, output),
        Err(_)     => $crate::IResult::Error($crate::Err::Position($crate::ErrorCode::ExprRes as u32, $i))
      }
    }
  );
);

expr_res!(Result<E,O>) => I -> IResult<I, O> evaluate an expression that returns a Result and returns a IResult::Done(I,T) if Ok

See expr_opt for an example