fn parse_path(mut path: &str) -> Result<(PackageName, Option<PackageVariant>), ParseError> {
    if !path.starts_with('/') {
        return Err(ParseError::MissingName);
    }
    path = &path[1..];
    if path.is_empty() {
        return Err(ParseError::MissingName);
    }
    let mut iter = path.split('/').fuse();
    let name = if let Some(s) = iter.next() {
        s.parse().map_err(ParseError::InvalidName)?
    } else {
        return Err(ParseError::MissingName);
    };
    let variant = if let Some(s) = iter.next() {
        Some(s.parse().map_err(ParseError::InvalidVariant)?)
    } else {
        None
    };
    if let Some(_) = iter.next() {
        return Err(ParseError::ExtraPathSegments);
    }
    Ok((name, variant))
}
// Returns a valid name and an optional variant on success.
Returns a valid name and an optional variant on success.
Returns a valid name and an optional variant on success .
fn parse_path(mut path: &str) -> Result<(PackageName, Option<PackageVariant>), ParseError> {
    if !path.starts_with('/') {
        return Err(ParseError::MissingName);
    }
    path = &path[1..];
    if path.is_empty() {
        return Err(ParseError::MissingName);
    }
    let mut iter = path.split('/').fuse();
    let name = if let Some(s) = iter.next() {
        s.parse().map_err(ParseError::InvalidName)?
    } else {
        return Err(ParseError::MissingName);
    };
    let variant = if let Some(s) = iter.next() {
        Some(s.parse().map_err(ParseError::InvalidVariant)?)
    } else {
        None
    };
    if let Some(_) = iter.next() {
        return Err(ParseError::ExtraPathSegments);
    }
    Ok((name, variant))
}
fn parse_path ( mut path : & str ) -> Result < ( PackageName , Option < PackageVariant > ) , ParseError > { if ! path . starts_with ( '/' ) { return Err ( ParseError :: MissingName ) ; } path = & path [ 1 .. ] ; if path . is_empty ( ) { return Err ( ParseError :: MissingName ) ; } let mut iter = path . split ( '/' ) . fuse ( ) ; let name = if let Some ( s ) = iter . next ( ) { s . parse ( ) . map_err ( ParseError :: InvalidName ) ? } else { return Err ( ParseError :: MissingName ) ; } ; let variant = if let Some ( s ) = iter . next ( ) { Some ( s . parse ( ) . map_err ( ParseError :: InvalidVariant ) ? ) } else { None } ; if let Some ( _ ) = iter . next ( ) { return Err ( ParseError :: ExtraPathSegments ) ; } Ok ( ( name , variant ) ) }
Returns a valid name and an optional variant on success.
Returns a valid name and an optional variant on success .
path
&str
path
&str