const regexCache = Object.create(null)

// @param {pattern}
const makeRegex = (pattern, ignoreCase) => {
    let source = regexCache[pattern]

    if (!source) {
        source = REPLACERS.reduce(
            (prev, current) => prev.replace(current[0], current[1].bind(pattern)),
            pattern
        )
        regexCache[pattern] = source
    }

    return ignoreCase

        .sort(s => -(s.additions + s.deletions));

    let totalAdditions = Object.values(preppedStatistics).reduce((acc, summary) => acc + summary.additions, 0);
    let totalDeletions = Object.values(preppedStatistics).reduce((acc, summary) => acc + summary.deletions, 0);
    let newRatio = totalAdditions / (totalAdditions + totalDeletions) * 100;