function extractSelection(uri) {
    let selection = undefined;
    const match = /^L?(\d+)(?:,(\d+))?(-L?(\d+)(?:,(\d+))?)?/.exec(uri.fragment);
    if (match) {
        selection = {
            startLineNumber: parseInt(match[1]),
            startColumn: match[2] ? parseInt(match[2]) : 1,
            endLineNumber: match[4] ? parseInt(match[4]) : undefined,
            endColumn: match[4] ? (match[5] ? parseInt(match[5]) : 1) : undefined
        };
        uri = uri.with({ fragment: '' });
    }
    return { selection, uri };
}
file:///some/file.js#73
file:///some/file.js#L73
file:///some/file.js#73,84
file:///some/file.js#L73,84
file:///some/file.js#73-83
file:///some/file.js#L73-L83
file:///some/file.js#73,84-83,52
file:///some/file.js#L73,84-L83,52