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
        ? new RegExp(source, 'i')
        : new RegExp(source)
}