'use strict';
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/**
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* Module dependencies
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*/
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var util = require('util');
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var toRegex = require('to-regex');
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var extend = require('extend-shallow');
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/**
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* Local dependencies
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*/
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var compilers = require('./lib/compilers');
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var parsers = require('./lib/parsers');
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var cache = require('./lib/cache');
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var utils = require('./lib/utils');
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var MAX_LENGTH = 1024 * 64;
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/**
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* The main function takes a list of strings and one or more
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* glob patterns to use for matching.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm(list, patterns[, options]);
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*
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* console.log(nm(['a.js', 'a.txt'], ['*.js']));
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* //=> [ 'a.js' ]
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* ```
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* @param {Array} `list` A list of strings to match
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* @param {String|Array} `patterns` One or more glob patterns to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Array} Returns an array of matches
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* @summary false
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* @api public
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*/
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function nanomatch(list, patterns, options) {
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patterns = utils.arrayify(patterns);
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list = utils.arrayify(list);
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var len = patterns.length;
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if (list.length === 0 || len === 0) {
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return [];
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}
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if (len === 1) {
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return nanomatch.match(list, patterns[0], options);
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}
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var negated = false;
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var omit = [];
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var keep = [];
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var idx = -1;
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while (++idx < len) {
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var pattern = patterns[idx];
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if (typeof pattern === 'string' && pattern.charCodeAt(0) === 33 /* ! */) {
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omit.push.apply(omit, nanomatch.match(list, pattern.slice(1), options));
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negated = true;
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} else {
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keep.push.apply(keep, nanomatch.match(list, pattern, options));
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}
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}
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// minimatch.match parity
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if (negated && keep.length === 0) {
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if (options && options.unixify === false) {
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keep = list.slice();
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} else {
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var unixify = utils.unixify(options);
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for (var i = 0; i < list.length; i++) {
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keep.push(unixify(list[i]));
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}
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}
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}
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var matches = utils.diff(keep, omit);
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if (!options || options.nodupes !== false) {
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return utils.unique(matches);
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}
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return matches;
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}
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/**
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* Similar to the main function, but `pattern` must be a string.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.match(list, pattern[, options]);
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*
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* console.log(nm.match(['a.a', 'a.aa', 'a.b', 'a.c'], '*.a'));
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* //=> ['a.a', 'a.aa']
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* ```
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* @param {Array} `list` Array of strings to match
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* @param {String} `pattern` Glob pattern to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Array} Returns an array of matches
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* @api public
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*/
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nanomatch.match = function(list, pattern, options) {
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if (Array.isArray(pattern)) {
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throw new TypeError('expected pattern to be a string');
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}
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var unixify = utils.unixify(options);
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var isMatch = memoize('match', pattern, options, nanomatch.matcher);
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var matches = [];
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list = utils.arrayify(list);
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var len = list.length;
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var idx = -1;
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while (++idx < len) {
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var ele = list[idx];
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if (ele === pattern || isMatch(ele)) {
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matches.push(utils.value(ele, unixify, options));
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}
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}
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// if no options were passed, uniquify results and return
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if (typeof options === 'undefined') {
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return utils.unique(matches);
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}
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if (matches.length === 0) {
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if (options.failglob === true) {
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throw new Error('no matches found for "' + pattern + '"');
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}
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if (options.nonull === true || options.nullglob === true) {
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return [options.unescape ? utils.unescape(pattern) : pattern];
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}
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}
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// if `opts.ignore` was defined, diff ignored list
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if (options.ignore) {
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matches = nanomatch.not(matches, options.ignore, options);
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}
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return options.nodupes !== false ? utils.unique(matches) : matches;
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};
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/**
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* Returns true if the specified `string` matches the given glob `pattern`.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.isMatch(string, pattern[, options]);
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*
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* console.log(nm.isMatch('a.a', '*.a'));
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* //=> true
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* console.log(nm.isMatch('a.b', '*.a'));
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* //=> false
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* ```
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* @param {String} `string` String to match
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* @param {String} `pattern` Glob pattern to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns true if the string matches the glob pattern.
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* @api public
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*/
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nanomatch.isMatch = function(str, pattern, options) {
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if (typeof str !== 'string') {
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throw new TypeError('expected a string: "' + util.inspect(str) + '"');
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}
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if (utils.isEmptyString(str) || utils.isEmptyString(pattern)) {
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return false;
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}
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var equals = utils.equalsPattern(options);
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if (equals(str)) {
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return true;
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}
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var isMatch = memoize('isMatch', pattern, options, nanomatch.matcher);
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return isMatch(str);
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};
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/**
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* Returns true if some of the elements in the given `list` match any of the
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* given glob `patterns`.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.some(list, patterns[, options]);
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*
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* console.log(nm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
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* // true
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* console.log(nm.some(['foo.js'], ['*.js', '!foo.js']));
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* // false
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* ```
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* @param {String|Array} `list` The string or array of strings to test. Returns as soon as the first match is found.
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* @param {String|Array} `patterns` One or more glob patterns to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns true if any patterns match `str`
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* @api public
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*/
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nanomatch.some = function(list, patterns, options) {
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if (typeof list === 'string') {
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list = [list];
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}
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for (var i = 0; i < list.length; i++) {
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if (nanomatch(list[i], patterns, options).length === 1) {
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return true;
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}
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}
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return false;
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};
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/**
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* Returns true if every element in the given `list` matches
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* at least one of the given glob `patterns`.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.every(list, patterns[, options]);
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*
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* console.log(nm.every('foo.js', ['foo.js']));
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* // true
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* console.log(nm.every(['foo.js', 'bar.js'], ['*.js']));
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* // true
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* console.log(nm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
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* // false
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* console.log(nm.every(['foo.js'], ['*.js', '!foo.js']));
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* // false
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* ```
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* @param {String|Array} `list` The string or array of strings to test.
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* @param {String|Array} `patterns` One or more glob patterns to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns true if any patterns match `str`
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* @api public
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*/
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nanomatch.every = function(list, patterns, options) {
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if (typeof list === 'string') {
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list = [list];
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}
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for (var i = 0; i < list.length; i++) {
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if (nanomatch(list[i], patterns, options).length !== 1) {
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return false;
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}
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}
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return true;
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};
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/**
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* Returns true if **any** of the given glob `patterns`
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* match the specified `string`.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.any(string, patterns[, options]);
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*
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* console.log(nm.any('a.a', ['b.*', '*.a']));
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* //=> true
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* console.log(nm.any('a.a', 'b.*'));
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* //=> false
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* ```
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* @param {String|Array} `str` The string to test.
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* @param {String|Array} `patterns` One or more glob patterns to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns true if any patterns match `str`
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* @api public
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*/
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nanomatch.any = function(str, patterns, options) {
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if (typeof str !== 'string') {
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throw new TypeError('expected a string: "' + util.inspect(str) + '"');
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}
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if (utils.isEmptyString(str) || utils.isEmptyString(patterns)) {
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return false;
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}
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if (typeof patterns === 'string') {
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patterns = [patterns];
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}
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for (var i = 0; i < patterns.length; i++) {
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if (nanomatch.isMatch(str, patterns[i], options)) {
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return true;
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}
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}
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return false;
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};
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/**
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* Returns true if **all** of the given `patterns`
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* match the specified string.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.all(string, patterns[, options]);
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*
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* console.log(nm.all('foo.js', ['foo.js']));
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* // true
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*
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* console.log(nm.all('foo.js', ['*.js', '!foo.js']));
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* // false
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*
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* console.log(nm.all('foo.js', ['*.js', 'foo.js']));
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* // true
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*
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* console.log(nm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));
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* // true
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* ```
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* @param {String|Array} `str` The string to test.
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* @param {String|Array} `patterns` One or more glob patterns to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns true if any patterns match `str`
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* @api public
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*/
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nanomatch.all = function(str, patterns, options) {
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if (typeof str !== 'string') {
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throw new TypeError('expected a string: "' + util.inspect(str) + '"');
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}
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if (typeof patterns === 'string') {
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patterns = [patterns];
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}
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for (var i = 0; i < patterns.length; i++) {
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if (!nanomatch.isMatch(str, patterns[i], options)) {
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return false;
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}
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}
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return true;
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};
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/**
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* Returns a list of strings that _**do not match any**_ of the given `patterns`.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.not(list, patterns[, options]);
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*
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* console.log(nm.not(['a.a', 'b.b', 'c.c'], '*.a'));
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* //=> ['b.b', 'c.c']
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* ```
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* @param {Array} `list` Array of strings to match.
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* @param {String|Array} `patterns` One or more glob pattern to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Array} Returns an array of strings that **do not match** the given patterns.
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* @api public
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*/
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nanomatch.not = function(list, patterns, options) {
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var opts = extend({}, options);
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var ignore = opts.ignore;
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delete opts.ignore;
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list = utils.arrayify(list);
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var matches = utils.diff(list, nanomatch(list, patterns, opts));
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if (ignore) {
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matches = utils.diff(matches, nanomatch(list, ignore));
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}
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return opts.nodupes !== false ? utils.unique(matches) : matches;
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};
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/**
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* Returns true if the given `string` contains the given pattern. Similar
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* to [.isMatch](#isMatch) but the pattern can match any part of the string.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.contains(string, pattern[, options]);
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*
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* console.log(nm.contains('aa/bb/cc', '*b'));
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* //=> true
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* console.log(nm.contains('aa/bb/cc', '*d'));
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* //=> false
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* ```
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* @param {String} `str` The string to match.
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* @param {String|Array} `patterns` Glob pattern to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns true if the patter matches any part of `str`.
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* @api public
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*/
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nanomatch.contains = function(str, patterns, options) {
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if (typeof str !== 'string') {
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throw new TypeError('expected a string: "' + util.inspect(str) + '"');
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}
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if (typeof patterns === 'string') {
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if (utils.isEmptyString(str) || utils.isEmptyString(patterns)) {
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return false;
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}
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var equals = utils.equalsPattern(patterns, options);
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if (equals(str)) {
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return true;
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}
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var contains = utils.containsPattern(patterns, options);
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if (contains(str)) {
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return true;
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}
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}
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var opts = extend({}, options, {contains: true});
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return nanomatch.any(str, patterns, opts);
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};
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/**
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* Returns true if the given pattern and options should enable
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* the `matchBase` option.
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* @return {Boolean}
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* @api private
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*/
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nanomatch.matchBase = function(pattern, options) {
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if (pattern && pattern.indexOf('/') !== -1 || !options) return false;
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return options.basename === true || options.matchBase === true;
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};
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/**
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* Filter the keys of the given object with the given `glob` pattern
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* and `options`. Does not attempt to match nested keys. If you need this feature,
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* use [glob-object][] instead.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.matchKeys(object, patterns[, options]);
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*
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* var obj = { aa: 'a', ab: 'b', ac: 'c' };
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* console.log(nm.matchKeys(obj, '*b'));
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* //=> { ab: 'b' }
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* ```
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* @param {Object} `object` The object with keys to filter.
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* @param {String|Array} `patterns` One or more glob patterns to use for matching.
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Object} Returns an object with only keys that match the given patterns.
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* @api public
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*/
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nanomatch.matchKeys = function(obj, patterns, options) {
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if (!utils.isObject(obj)) {
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throw new TypeError('expected the first argument to be an object');
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}
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var keys = nanomatch(Object.keys(obj), patterns, options);
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return utils.pick(obj, keys);
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};
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/**
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* Returns a memoized matcher function from the given glob `pattern` and `options`.
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* The returned function takes a string to match as its only argument and returns
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* true if the string is a match.
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*
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* ```js
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* var nm = require('nanomatch');
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* nm.matcher(pattern[, options]);
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*
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* var isMatch = nm.matcher('*.!(*a)');
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* console.log(isMatch('a.a'));
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* //=> false
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* console.log(isMatch('a.b'));
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* //=> true
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* ```
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* @param {String} `pattern` Glob pattern
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* @param {Object} `options` See available [options](#options) for changing how matches are performed.
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* @return {Function} Returns a matcher function.
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* @api public
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*/
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nanomatch.matcher = function matcher(pattern, options) {
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if (utils.isEmptyString(pattern)) {
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return function() {
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return false;
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};
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}
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if (Array.isArray(pattern)) {
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return compose(pattern, options, matcher);
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}
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// if pattern is a regex
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if (pattern instanceof RegExp) {
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return test(pattern);
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}
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// if pattern is invalid
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if (!utils.isString(pattern)) {
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throw new TypeError('expected pattern to be an array, string or regex');
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}
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// if pattern is a non-glob string
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if (!utils.hasSpecialChars(pattern)) {
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if (options && options.nocase === true) {
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pattern = pattern.toLowerCase();
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}
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return utils.matchPath(pattern, options);
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}
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// if pattern is a glob string
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var re = nanomatch.makeRe(pattern, options);
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// if `options.matchBase` or `options.basename` is defined
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if (nanomatch.matchBase(pattern, options)) {
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return utils.matchBasename(re, options);
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}
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function test(regex) {
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var equals = utils.equalsPattern(options);
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var unixify = utils.unixify(options);
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return function(str) {
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if (equals(str)) {
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return true;
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}
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if (regex.test(unixify(str))) {
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return true;
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}
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return false;
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};
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}
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// create matcher function
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var matcherFn = test(re);
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// set result object from compiler on matcher function,
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// as a non-enumerable property. useful for debugging
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utils.define(matcherFn, 'result', re.result);
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return matcherFn;
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};
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/**
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* Returns an array of matches captured by `pattern` in `string, or
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* `null` if the pattern did not match.
|
*
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* ```js
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* var nm = require('nanomatch');
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* nm.capture(pattern, string[, options]);
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*
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* console.log(nm.capture('test/*.js', 'test/foo.js'));
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* //=> ['foo']
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* console.log(nm.capture('test/*.js', 'foo/bar.css'));
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* //=> null
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* ```
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* @param {String} `pattern` Glob pattern to use for matching.
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* @param {String} `string` String to match
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* @param {Object} `options` See available [options](#options) for changing how matches are performed
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* @return {Boolean} Returns an array of captures if the string matches the glob pattern, otherwise `null`.
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* @api public
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*/
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nanomatch.capture = function(pattern, str, options) {
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var re = nanomatch.makeRe(pattern, extend({capture: true}, options));
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var unixify = utils.unixify(options);
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function match() {
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return function(string) {
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var match = re.exec(unixify(string));
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if (!match) {
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return null;
|
}
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return match.slice(1);
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};
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}
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var capture = memoize('capture', pattern, options, match);
|
return capture(str);
|
};
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|
/**
|
* Create a regular expression from the given glob `pattern`.
|
*
|
* ```js
|
* var nm = require('nanomatch');
|
* nm.makeRe(pattern[, options]);
|
*
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* console.log(nm.makeRe('*.js'));
|
* //=> /^(?:(\.[\\\/])?(?!\.)(?=.)[^\/]*?\.js)$/
|
* ```
|
* @param {String} `pattern` A glob pattern to convert to regex.
|
* @param {Object} `options` See available [options](#options) for changing how matches are performed.
|
* @return {RegExp} Returns a regex created from the given pattern.
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* @api public
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*/
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nanomatch.makeRe = function(pattern, options) {
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if (pattern instanceof RegExp) {
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return pattern;
|
}
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if (typeof pattern !== 'string') {
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throw new TypeError('expected pattern to be a string');
|
}
|
|
if (pattern.length > MAX_LENGTH) {
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throw new Error('expected pattern to be less than ' + MAX_LENGTH + ' characters');
|
}
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function makeRe() {
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var opts = utils.extend({wrap: false}, options);
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var result = nanomatch.create(pattern, opts);
|
var regex = toRegex(result.output, opts);
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utils.define(regex, 'result', result);
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return regex;
|
}
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|
return memoize('makeRe', pattern, options, makeRe);
|
};
|
|
/**
|
* Parses the given glob `pattern` and returns an object with the compiled `output`
|
* and optional source `map`.
|
*
|
* ```js
|
* var nm = require('nanomatch');
|
* nm.create(pattern[, options]);
|
*
|
* console.log(nm.create('abc/*.js'));
|
* // { options: { source: 'string', sourcemap: true },
|
* // state: {},
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* // compilers:
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* // { ... },
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* // output: '(\\.[\\\\\\/])?abc\\/(?!\\.)(?=.)[^\\/]*?\\.js',
|
* // ast:
|
* // { type: 'root',
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* // errors: [],
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* // nodes:
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* // [ ... ],
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* // dot: false,
|
* // input: 'abc/*.js' },
|
* // parsingErrors: [],
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* // map:
|
* // { version: 3,
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* // sources: [ 'string' ],
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* // names: [],
|
* // mappings: 'AAAA,GAAG,EAAC,kBAAC,EAAC,EAAE',
|
* // sourcesContent: [ 'abc/*.js' ] },
|
* // position: { line: 1, column: 28 },
|
* // content: {},
|
* // files: {},
|
* // idx: 6 }
|
* ```
|
* @param {String} `pattern` Glob pattern to parse and compile.
|
* @param {Object} `options` Any [options](#options) to change how parsing and compiling is performed.
|
* @return {Object} Returns an object with the parsed AST, compiled string and optional source map.
|
* @api public
|
*/
|
|
nanomatch.create = function(pattern, options) {
|
if (typeof pattern !== 'string') {
|
throw new TypeError('expected a string');
|
}
|
function create() {
|
return nanomatch.compile(nanomatch.parse(pattern, options), options);
|
}
|
return memoize('create', pattern, options, create);
|
};
|
|
/**
|
* Parse the given `str` with the given `options`.
|
*
|
* ```js
|
* var nm = require('nanomatch');
|
* nm.parse(pattern[, options]);
|
*
|
* var ast = nm.parse('a/{b,c}/d');
|
* console.log(ast);
|
* // { type: 'root',
|
* // errors: [],
|
* // input: 'a/{b,c}/d',
|
* // nodes:
|
* // [ { type: 'bos', val: '' },
|
* // { type: 'text', val: 'a/' },
|
* // { type: 'brace',
|
* // nodes:
|
* // [ { type: 'brace.open', val: '{' },
|
* // { type: 'text', val: 'b,c' },
|
* // { type: 'brace.close', val: '}' } ] },
|
* // { type: 'text', val: '/d' },
|
* // { type: 'eos', val: '' } ] }
|
* ```
|
* @param {String} `str`
|
* @param {Object} `options`
|
* @return {Object} Returns an AST
|
* @api public
|
*/
|
|
nanomatch.parse = function(pattern, options) {
|
if (typeof pattern !== 'string') {
|
throw new TypeError('expected a string');
|
}
|
|
function parse() {
|
var snapdragon = utils.instantiate(null, options);
|
parsers(snapdragon, options);
|
|
var ast = snapdragon.parse(pattern, options);
|
utils.define(ast, 'snapdragon', snapdragon);
|
ast.input = pattern;
|
return ast;
|
}
|
|
return memoize('parse', pattern, options, parse);
|
};
|
|
/**
|
* Compile the given `ast` or string with the given `options`.
|
*
|
* ```js
|
* var nm = require('nanomatch');
|
* nm.compile(ast[, options]);
|
*
|
* var ast = nm.parse('a/{b,c}/d');
|
* console.log(nm.compile(ast));
|
* // { options: { source: 'string' },
|
* // state: {},
|
* // compilers:
|
* // { eos: [Function],
|
* // noop: [Function],
|
* // bos: [Function],
|
* // brace: [Function],
|
* // 'brace.open': [Function],
|
* // text: [Function],
|
* // 'brace.close': [Function] },
|
* // output: [ 'a/(b|c)/d' ],
|
* // ast:
|
* // { ... },
|
* // parsingErrors: [] }
|
* ```
|
* @param {Object|String} `ast`
|
* @param {Object} `options`
|
* @return {Object} Returns an object that has an `output` property with the compiled string.
|
* @api public
|
*/
|
|
nanomatch.compile = function(ast, options) {
|
if (typeof ast === 'string') {
|
ast = nanomatch.parse(ast, options);
|
}
|
|
function compile() {
|
var snapdragon = utils.instantiate(ast, options);
|
compilers(snapdragon, options);
|
return snapdragon.compile(ast, options);
|
}
|
|
return memoize('compile', ast.input, options, compile);
|
};
|
|
/**
|
* Clear the regex cache.
|
*
|
* ```js
|
* nm.clearCache();
|
* ```
|
* @api public
|
*/
|
|
nanomatch.clearCache = function() {
|
nanomatch.cache.__data__ = {};
|
};
|
|
/**
|
* Compose a matcher function with the given patterns.
|
* This allows matcher functions to be compiled once and
|
* called multiple times.
|
*/
|
|
function compose(patterns, options, matcher) {
|
var matchers;
|
|
return memoize('compose', String(patterns), options, function() {
|
return function(file) {
|
// delay composition until it's invoked the first time,
|
// after that it won't be called again
|
if (!matchers) {
|
matchers = [];
|
for (var i = 0; i < patterns.length; i++) {
|
matchers.push(matcher(patterns[i], options));
|
}
|
}
|
|
var len = matchers.length;
|
while (len--) {
|
if (matchers[len](file) === true) {
|
return true;
|
}
|
}
|
return false;
|
};
|
});
|
}
|
|
/**
|
* Memoize a generated regex or function. A unique key is generated
|
* from the `type` (usually method name), the `pattern`, and
|
* user-defined options.
|
*/
|
|
function memoize(type, pattern, options, fn) {
|
var key = utils.createKey(type + '=' + pattern, options);
|
|
if (options && options.cache === false) {
|
return fn(pattern, options);
|
}
|
|
if (cache.has(type, key)) {
|
return cache.get(type, key);
|
}
|
|
var val = fn(pattern, options);
|
cache.set(type, key, val);
|
return val;
|
}
|
|
/**
|
* Expose compiler, parser and cache on `nanomatch`
|
*/
|
|
nanomatch.compilers = compilers;
|
nanomatch.parsers = parsers;
|
nanomatch.cache = cache;
|
|
/**
|
* Expose `nanomatch`
|
* @type {Function}
|
*/
|
|
module.exports = nanomatch;
|
