//   fatal for JavaScript regular expression, so eliminate it.
        : EMPTY
)

// See fixtures #59
const cleanRangeBackSlash = slashes => {
    const {length} = slashes
    return slashes.slice(0, length - length % 2)
}

// > If the pattern ends with a slash,
// > it is removed for the purpose of the following description,
// > but it would only find a match with a directory.

/**
 * @module byPlatform
 * @description Groups the PR's files by platform based on the file's path.
 * @param {string[]} files - the gitStream's files context variable
 * @returns {Map} - Map from platform to list of files in this PR in it
 * @example {{ owners | byPlatform }}
 */
function byPlatform(files) {
    const result = new Map();
    files.forEach(file => {
        const platform = getPlatform(file);
        if (!result.has(platform)) {