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handle the case of empty input

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Tamo 2021-10-22 17:49:08 +02:00
parent e25ca9776f
commit 4e113bbf1b
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1 changed files with 3 additions and 0 deletions
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3
filter_parser/src/lib.rs
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@ -91,6 +91,9 @@ impl<'a> FilterCondition<'a> {
} }
pub fn parse<E: FPError<'a>>(input: &'a str) -> Result<Self, E> { pub fn parse<E: FPError<'a>>(input: &'a str) -> Result<Self, E> {
if input.trim().is_empty() {
return Ok(Self::Empty);
}
let span = Span::new(input); let span = Span::new(input);
parse_expression::<'a, E>(span).finish().map(|(_rem, output)| output) parse_expression::<'a, E>(span).finish().map(|(_rem, output)| output)
} }