@regexp-extra/posix-bracket v0.1.2

RegExp for matching POSIX bracket expressions.

const POSIX_BRACKET = require('@regexp-extra/posix-bracket');
// -> regular expression (global)


POSIX_BRACKET.test('[foo:]]');
// false

POSIX_BRACKET.test('[[:xdigit:]]');
// true

'[[:xdigit:]] [[:alpha:]123]'.match(POSIX_BRACKET);
// [ '[:xdigit:]', '[:alpha:]' ]

new RegExp(POSIX_BRACKET).exec('[[:xdigit:]] [[:alpha:]123]');
// [ '[:xdigit:]',
//   ':',
//   index: 1,
//   input: '[[:xdigit:]] [[:alpha:]123]',
//   groups: undefined ]

credits: taken directly from micromatch/is-posix-bracket.