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							342 lines
						
					
					
						
							9.7 KiB
						
					
					
				'use strict'; | 
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 | 
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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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const constants = require('./constants'); | 
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const isObject = val => val && typeof val === 'object' && !Array.isArray(val); | 
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 | 
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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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 | 
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const picomatch = (glob, options, returnState = false) => { | 
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  if (Array.isArray(glob)) { | 
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    const fns = glob.map(input => picomatch(input, options, returnState)); | 
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    const arrayMatcher = str => { | 
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      for (const isMatch of fns) { | 
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        const 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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    return arrayMatcher; | 
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  } | 
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 | 
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  const isState = isObject(glob) && glob.tokens && glob.input; | 
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 | 
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  if (glob === '' || (typeof glob !== 'string' && !isState)) { | 
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    throw new TypeError('Expected pattern to be a non-empty string'); | 
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  } | 
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 | 
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  const opts = options || {}; | 
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  const posix = utils.isWindows(options); | 
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  const regex = isState | 
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    ? picomatch.compileRe(glob, options) | 
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    : picomatch.makeRe(glob, options, false, true); | 
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 | 
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  const state = regex.state; | 
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  delete regex.state; | 
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 | 
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  let isIgnored = () => false; | 
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  if (opts.ignore) { | 
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    const 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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 | 
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  const matcher = (input, returnObject = false) => { | 
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    const { isMatch, match, output } = picomatch.test(input, regex, options, { glob, posix }); | 
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    const result = { glob, state, regex, posix, input, output, match, isMatch }; | 
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 | 
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    if (typeof opts.onResult === 'function') { | 
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      opts.onResult(result); | 
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    } | 
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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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 | 
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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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 | 
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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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 | 
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  if (returnState) { | 
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    matcher.state = state; | 
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  } | 
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 | 
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  return matcher; | 
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}; | 
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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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 | 
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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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 | 
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  if (input === '') { | 
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    return { isMatch: false, output: '' }; | 
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  } | 
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 | 
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  const opts = options || {}; | 
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  const 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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 | 
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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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 | 
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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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 | 
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  return { isMatch: Boolean(match), match, output }; | 
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}; | 
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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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 | 
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picomatch.matchBase = (input, glob, options, posix = utils.isWindows(options)) => { | 
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  const 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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/** | 
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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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/** | 
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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(pattern[, options]); | 
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 * ``` | 
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 * @param {String} `pattern` | 
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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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 | 
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picomatch.parse = (pattern, options) => { | 
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  if (Array.isArray(pattern)) return pattern.map(p => picomatch.parse(p, options)); | 
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  return parse(pattern, { ...options, fastpaths: false }); | 
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}; | 
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 | 
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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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 *   start: 3, | 
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 *   base: 'foo', | 
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 *   glob: '*.js', | 
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 *   isBrace: false, | 
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 *   isBracket: false, | 
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 *   isGlob: true, | 
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 *   isExtglob: false, | 
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 *   isGlobstar: false, | 
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 *   negated: 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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 | 
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picomatch.scan = (input, options) => scan(input, options); | 
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 | 
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/** | 
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 * Compile a regular expression from the `state` object returned by the | 
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 * [parse()](#parse) method. | 
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 * | 
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 * @param {Object} `state` | 
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 * @param {Object} `options` | 
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 * @param {Boolean} `returnOutput` Intended for implementors, this argument allows you to return the raw output from the parser. | 
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 * @param {Boolean} `returnState` Adds the state to a `state` property on the returned regex. Useful for implementors and debugging. | 
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 * @return {RegExp} | 
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 * @api public | 
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 */ | 
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 | 
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picomatch.compileRe = (state, options, returnOutput = false, returnState = false) => { | 
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  if (returnOutput === true) { | 
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    return state.output; | 
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  } | 
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 | 
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  const opts = options || {}; | 
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  const prepend = opts.contains ? '' : '^'; | 
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  const append = opts.contains ? '' : '$'; | 
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 | 
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  let source = `${prepend}(?:${state.output})${append}`; | 
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  if (state && state.negated === true) { | 
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    source = `^(?!${source}).*$`; | 
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  } | 
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 | 
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  const regex = picomatch.toRegex(source, options); | 
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  if (returnState === true) { | 
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    regex.state = state; | 
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  } | 
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 | 
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  return regex; | 
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}; | 
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 | 
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/** | 
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 * Create a regular expression from a parsed glob pattern. | 
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 * | 
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 * ```js | 
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 * const picomatch = require('picomatch'); | 
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 * const state = picomatch.parse('*.js'); | 
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 * // picomatch.compileRe(state[, options]); | 
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 * | 
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 * console.log(picomatch.compileRe(state)); | 
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 * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/ | 
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 * ``` | 
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 * @param {String} `state` The object returned from the `.parse` method. | 
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 * @param {Object} `options` | 
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 * @param {Boolean} `returnOutput` Implementors may use this argument to return the compiled output, instead of a regular expression. This is not exposed on the options to prevent end-users from mutating the result. | 
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 * @param {Boolean} `returnState` Implementors may use this argument to return the state from the parsed glob with the returned regular expression. | 
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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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 | 
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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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 | 
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  let parsed = { negated: false, fastpaths: true }; | 
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 | 
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  if (options.fastpaths !== false && (input[0] === '.' || input[0] === '*')) { | 
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    parsed.output = parse.fastpaths(input, options); | 
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  } | 
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 | 
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  if (!parsed.output) { | 
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    parsed = parse(input, options); | 
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  } | 
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 | 
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  return picomatch.compileRe(parsed, options, returnOutput, returnState); | 
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}; | 
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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)$/ | 
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 * ``` | 
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 * @param {String} `source` Regular expression source string. | 
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 * @param {Object} `options` | 
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 * @return {RegExp} | 
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 * @api public | 
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 */ | 
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 | 
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picomatch.toRegex = (source, options) => { | 
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  try { | 
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    const opts = options || {}; | 
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    return new RegExp(source, opts.flags || (opts.nocase ? 'i' : '')); | 
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  } catch (err) { | 
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    if (options && options.debug === true) throw err; | 
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    return /$^/; | 
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  } | 
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}; | 
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 | 
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/** | 
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 * Picomatch constants. | 
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 * @return {Object} | 
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 */ | 
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picomatch.constants = constants; | 
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 | 
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/** | 
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 * Expose "picomatch" | 
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 */ | 
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 | 
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module.exports = picomatch;
 | 
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 |