'use strict' class ArgRegExp extends RegExp { name (arg) { return arg.match(this)[1] } } exports.short = new ArgRegExp('^-([^\\d-])$') exports.long = new ArgRegExp('^--(\\S+)') exports.combined = new ArgRegExp('^-([^\\d-]{2,})$') exports.isOption = arg => exports.short.test(arg) || exports.long.test(arg) exports.optEquals = new ArgRegExp('^(--\\S+?)=(.*)') exports.VALUE_MARKER = '552f3a31-14cd-4ced-bd67-656a659e9efb' // must be unique