fn tree_selector<'a>(
    accept_spaces: bool,
) -> impl Fn(&'a str) -> IResult<&'a str, TreeSelector<'a>> {
    move |input: &str| {
        let esc = if accept_spaces {
            escaped(none_of(":/\"\\\n"), '\\', one_of(r#"/:\""#))
        } else {
            escaped(none_of(":/\\ \t\n"), '\\', one_of(r#"/:\"#))
        };
        let (rest, node_segments) =
            verify(separated_nonempty_list(tag("/"), &esc), |segments: &Vec<&str>| {
                !segments.iter().any(|s| s.contains("**"))
            })(input)?;
        let (rest, property_segment) =
            if peek::<&str, _, (&str, ErrorKind), _>(tag(":"))(rest).is_ok() {
                let (rest, _) = tag(":")(rest)?;
                let (rest, property) =
                    verify(esc, |value: &str| !value.is_empty() && !value.contains("**"))(rest)?;
                (rest, Some(property))
            } else {
                (rest, None)
            };
        Ok((
            rest,
            TreeSelector {
                node: node_segments.into_iter().map(|value| value.into()).collect(),
                property: property_segment.map(|value| value.into()),
            },
        ))
    }
}
/// Parses a tree selector, which is a node selector and an optional property selector.
Parses a tree selector, which is a node selector and an optional property selector.
Parses a tree selector which is a node selector and an optional property selector .
fn tree_selector<'a>(
    accept_spaces: bool,
) -> impl Fn(&'a str) -> IResult<&'a str, TreeSelector<'a>> {
    move |input: &str| {
        let esc = if accept_spaces {
            escaped(none_of(":/\"\\\n"), '\\', one_of(r#"/:\""#))
        } else {
            escaped(none_of(":/\\ \t\n"), '\\', one_of(r#"/:\"#))
        };
        let (rest, node_segments) =
            verify(separated_nonempty_list(tag("/"), &esc), |segments: &Vec<&str>| {
                !segments.iter().any(|s| s.contains("**"))
            })(input)?;
        let (rest, property_segment) =
            if peek::<&str, _, (&str, ErrorKind), _>(tag(":"))(rest).is_ok() {
                let (rest, _) = tag(":")(rest)?;
                let (rest, property) =
                    verify(esc, |value: &str| !value.is_empty() && !value.contains("**"))(rest)?;
                (rest, Some(property))
            } else {
                (rest, None)
            };
        Ok((
            rest,
            TreeSelector {
                node: node_segments.into_iter().map(|value| value.into()).collect(),
                property: property_segment.map(|value| value.into()),
            },
        ))
    }
}
fn tree_selector < ' a > ( accept_spaces : bool , ) -> impl Fn ( & ' a str ) -> IResult < & ' a str , TreeSelector < ' a > > { move | input : & str | { let esc = if accept_spaces { escaped ( none_of ( " \" \\ \n " ) , '\\' , one_of ( r#"/:\""# ) ) } else { escaped ( none_of ( " \\ \t \n " ) , '\\' , one_of ( r#"/:\"# ) ) } ; let ( rest , node_segments ) = verify ( separated_nonempty_list ( tag ( " " ) , & esc ) , | segments : & Vec < & str > | { ! segments . iter ( ) . any ( | s | s . contains ( " " ) ) } ) ( input ) ? ; let ( rest , property_segment ) = if peek :: < & str , _ , ( & str , ErrorKind ) , _ > ( tag ( " " ) ) ( rest ) . is_ok ( ) { let ( rest , _ ) = tag ( " " ) ( rest ) ? ; let ( rest , property ) = verify ( esc , | value : & str | ! value . is_empty ( ) && ! value . contains ( " " ) ) ( rest ) ? ; ( rest , Some ( property ) ) } else { ( rest , None ) } ; Ok ( ( rest , TreeSelector { node : node_segments . into_iter ( ) . map ( | value | value . into ( ) ) . collect ( ) , property : property_segment . map ( | value | value . into ( ) ) , } , ) ) } }
Parses a tree selector, which is a node selector and an optional property selector.
Parses a tree selector which is a node selector and an optional property selector .
accept_spaces
bool
accept_spaces
bool