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'use strict';
var minimatch = require('minimatch');
var arrayUnion = require('array-union');
var arrayDiffer = require('array-differ');
var arrify = require('arrify');
module.exports = function (list, patterns, options) {
	list = arrify(list);
	patterns = arrify(patterns);
	if (list.length === 0 || patterns.length === 0) {
		return [];
	}
	options = options || {};
	return patterns.reduce(function (ret, pattern) {
		var process = arrayUnion;
		if (pattern[0] === '!') {
			pattern = pattern.slice(1);
			process = arrayDiffer;
		}
		return process(ret, minimatch.match(list, pattern, options));
	}, []);
};
 
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