Function cucumber_expressions::parse::expression
source · [−]pub fn expression<'a, Input: 'a>(
input: Input
) -> IResult<Input, Expression<Input>, Error<Input>> where
Input: Clone + Display + Offset + InputLength + InputTake + InputTakeAtPosition<Item = char> + Slice<RangeFrom<usize>> + InputIter + for<'s> Compare<&'s str>,
<Input as InputIter>::Item: AsChar + Copy,
Error<Input>: ParseError<Input>,
for<'s> &'s str: FindToken<<Input as InputIter>::Item>,
Expand description
Parses an expression
as defined in the grammar spec.
Grammar
expression = single-expression*
Example
text(opt)/text
(opt)
{string}
text
NOTE: Empty string is matched too.
Errors
Irrecoverable Failure
Any Failure
of alternation()
, optional()
or parameter()
.