forked from zhurui/management
316 lines
8.3 KiB
JavaScript
316 lines
8.3 KiB
JavaScript
'use strict';
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const path = require('path');
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const scan = require('./scan');
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const parse = require('./parse');
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const utils = require('./utils');
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/**
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* Creates a matcher function from one or more glob patterns. The
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* returned function takes a string to match as its first argument,
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* and returns true if the string is a match. The returned matcher
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* function also takes a boolean as the second argument that, when true,
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* returns an object with additional information.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch(glob[, options]);
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*
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* const isMatch = picomatch('*.!(*a)');
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* console.log(isMatch('a.a')); //=> false
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* console.log(isMatch('a.b')); //=> true
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* ```
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* @name picomatch
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* @param {String|Array} `globs` One or more glob patterns.
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* @param {Object=} `options`
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* @return {Function=} Returns a matcher function.
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* @api public
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*/
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const picomatch = (glob, options, returnState = false) => {
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if (Array.isArray(glob)) {
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let fns = glob.map(input => picomatch(input, options, returnState));
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return str => {
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for (let isMatch of fns) {
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let state = isMatch(str);
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if (state) return state;
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}
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return false;
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};
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}
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if (typeof glob !== 'string' || glob === '') {
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throw new TypeError('Expected pattern to be a non-empty string');
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}
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let opts = options || {};
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let posix = utils.isWindows(options);
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let regex = picomatch.makeRe(glob, options, false, true);
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let state = regex.state;
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delete regex.state;
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let isIgnored = () => false;
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if (opts.ignore) {
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let ignoreOpts = { ...options, ignore: null, onMatch: null, onResult: null };
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isIgnored = picomatch(opts.ignore, ignoreOpts, returnState);
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}
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const matcher = (input, returnObject = false) => {
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let { isMatch, match, output } = picomatch.test(input, regex, options, { glob, posix });
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let result = { glob, state, regex, posix, input, output, match, isMatch };
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if (typeof opts.onResult === 'function') {
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opts.onResult(result);
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}
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if (isMatch === false) {
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result.isMatch = false;
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return returnObject ? result : false;
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}
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if (isIgnored(input)) {
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if (typeof opts.onIgnore === 'function') {
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opts.onIgnore(result);
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}
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result.isMatch = false;
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return returnObject ? result : false;
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}
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if (typeof opts.onMatch === 'function') {
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opts.onMatch(result);
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}
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return returnObject ? result : true;
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};
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if (returnState) {
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matcher.state = state;
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}
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return matcher;
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};
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/**
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* Test `input` with the given `regex`. This is used by the main
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* `picomatch()` function to test the input string.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch.test(input, regex[, options]);
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*
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* console.log(picomatch.test('foo/bar', /^(?:([^/]*?)\/([^/]*?))$/));
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* // { isMatch: true, match: [ 'foo/', 'foo', 'bar' ], output: 'foo/bar' }
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* ```
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* @param {String} `input` String to test.
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* @param {RegExp} `regex`
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* @return {Object} Returns an object with matching info.
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* @api public
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*/
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picomatch.test = (input, regex, options, { glob, posix } = {}) => {
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if (typeof input !== 'string') {
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throw new TypeError('Expected input to be a string');
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}
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if (input === '') {
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return { isMatch: false, output: '' };
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}
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let opts = options || {};
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let format = opts.format || (posix ? utils.toPosixSlashes : null);
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let match = input === glob;
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let output = (match && format) ? format(input) : input;
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if (match === false) {
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output = format ? format(input) : input;
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match = output === glob;
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}
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if (match === false || opts.capture === true) {
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if (opts.matchBase === true || opts.basename === true) {
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match = picomatch.matchBase(input, regex, options, posix);
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} else {
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match = regex.exec(output);
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}
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}
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return { isMatch: !!match, match, output };
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};
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/**
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* Match the basename of a filepath.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch.matchBase(input, glob[, options]);
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* console.log(picomatch.matchBase('foo/bar.js', '*.js'); // true
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* ```
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* @param {String} `input` String to test.
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* @param {RegExp|String} `glob` Glob pattern or regex created by [.makeRe](#makeRe).
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* @return {Boolean}
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* @api public
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*/
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picomatch.matchBase = (input, glob, options, posix = utils.isWindows(options)) => {
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let regex = glob instanceof RegExp ? glob : picomatch.makeRe(glob, options);
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return regex.test(path.basename(input));
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};
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/**
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* Returns true if **any** of the given glob `patterns` match the specified `string`.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch.isMatch(string, patterns[, options]);
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*
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* console.log(picomatch.isMatch('a.a', ['b.*', '*.a'])); //=> true
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* console.log(picomatch.isMatch('a.a', 'b.*')); //=> 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).
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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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picomatch.isMatch = (str, patterns, options) => picomatch(patterns, options)(str);
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/**
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* Parse a glob pattern to create the source string for a regular
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* expression.
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*
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* ```js
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* const picomatch = require('picomatch');
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* const result = picomatch.parse(glob[, options]);
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* ```
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* @param {String} `glob`
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* @param {Object} `options`
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* @return {Object} Returns an object with useful properties and output to be used as a regex source string.
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* @api public
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*/
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picomatch.parse = (glob, options) => parse(glob, options);
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/**
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* Scan a glob pattern to separate the pattern into segments.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch.scan(input[, options]);
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*
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* const result = picomatch.scan('!./foo/*.js');
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* console.log(result);
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* // { prefix: '!./',
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* // input: '!./foo/*.js',
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* // base: 'foo',
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* // glob: '*.js',
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* // negated: true,
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* // isGlob: true }
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* ```
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* @param {String} `input` Glob pattern to scan.
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* @param {Object} `options`
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* @return {Object} Returns an object with
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* @api public
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*/
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picomatch.scan = (input, options) => scan(input, options);
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/**
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* Create a regular expression from a glob pattern.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch.makeRe(input[, options]);
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*
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* console.log(picomatch.makeRe('*.js'));
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* //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
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* ```
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* @param {String} `input` A glob pattern to convert to regex.
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* @param {Object} `options`
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* @return {RegExp} Returns a regex created from the given pattern.
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* @api public
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*/
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picomatch.makeRe = (input, options, returnOutput = false, returnState = false) => {
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if (!input || typeof input !== 'string') {
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throw new TypeError('Expected a non-empty string');
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}
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let opts = options || {};
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let prepend = opts.contains ? '' : '^';
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let append = opts.contains ? '' : '$';
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let state = { negated: false, fastpaths: true };
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let prefix = '';
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let output;
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if (input.startsWith('./')) {
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input = input.slice(2);
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prefix = state.prefix = './';
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}
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if (opts.fastpaths !== false && (input[0] === '.' || input[0] === '*')) {
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output = parse.fastpaths(input, options);
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}
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if (output === void 0) {
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state = picomatch.parse(input, options);
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state.prefix = prefix + (state.prefix || '');
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output = state.output;
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}
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if (returnOutput === true) {
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return output;
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}
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let source = `${prepend}(?:${output})${append}`;
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if (state && state.negated === true) {
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source = `^(?!${source}).*$`;
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}
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let regex = picomatch.toRegex(source, options);
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if (returnState === true) {
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regex.state = state;
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}
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return regex;
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};
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/**
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* Create a regular expression from the given regex source string.
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*
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* ```js
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* const picomatch = require('picomatch');
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* // picomatch.toRegex(source[, options]);
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*
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* const { output } = picomatch.parse('*.js');
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* console.log(picomatch.toRegex(output));
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* //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
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* ```
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* @param {String} `source` Regular expression source string.
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* @param {Object} `options`
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* @return {RegExp}
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* @api public
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*/
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picomatch.toRegex = (source, options) => {
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try {
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let opts = options || {};
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return new RegExp(source, opts.flags || (opts.nocase ? 'i' : ''));
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} catch (err) {
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if (options && options.debug === true) throw err;
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return /$^/;
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}
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};
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/**
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* Picomatch constants.
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* @return {Object}
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*/
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picomatch.constants = require('./constants');
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/**
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* Expose "picomatch"
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*/
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module.exports = picomatch;
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