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Diffstat (limited to 'node_modules/picomatch/lib/picomatch.js')
-rw-r--r-- | node_modules/picomatch/lib/picomatch.js | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/node_modules/picomatch/lib/picomatch.js b/node_modules/picomatch/lib/picomatch.js new file mode 100644 index 0000000..782d809 --- /dev/null +++ b/node_modules/picomatch/lib/picomatch.js @@ -0,0 +1,342 @@ +'use strict'; + +const path = require('path'); +const scan = require('./scan'); +const parse = require('./parse'); +const utils = require('./utils'); +const constants = require('./constants'); +const isObject = val => val && typeof val === 'object' && !Array.isArray(val); + +/** + * Creates a matcher function from one or more glob patterns. The + * returned function takes a string to match as its first argument, + * and returns true if the string is a match. The returned matcher + * function also takes a boolean as the second argument that, when true, + * returns an object with additional information. + * + * ```js + * const picomatch = require('picomatch'); + * // picomatch(glob[, options]); + * + * const isMatch = picomatch('*.!(*a)'); + * console.log(isMatch('a.a')); //=> false + * console.log(isMatch('a.b')); //=> true + * ``` + * @name picomatch + * @param {String|Array} `globs` One or more glob patterns. + * @param {Object=} `options` + * @return {Function=} Returns a matcher function. + * @api public + */ + +const picomatch = (glob, options, returnState = false) => { + if (Array.isArray(glob)) { + const fns = glob.map(input => picomatch(input, options, returnState)); + const arrayMatcher = str => { + for (const isMatch of fns) { + const state = isMatch(str); + if (state) return state; + } + return false; + }; + return arrayMatcher; + } + + const isState = isObject(glob) && glob.tokens && glob.input; + + if (glob === '' || (typeof glob !== 'string' && !isState)) { + throw new TypeError('Expected pattern to be a non-empty string'); + } + + const opts = options || {}; + const posix = utils.isWindows(options); + const regex = isState + ? picomatch.compileRe(glob, options) + : picomatch.makeRe(glob, options, false, true); + + const state = regex.state; + delete regex.state; + + let isIgnored = () => false; + if (opts.ignore) { + const ignoreOpts = { ...options, ignore: null, onMatch: null, onResult: null }; + isIgnored = picomatch(opts.ignore, ignoreOpts, returnState); + } + + const matcher = (input, returnObject = false) => { + const { isMatch, match, output } = picomatch.test(input, regex, options, { glob, posix }); + const result = { glob, state, regex, posix, input, output, match, isMatch }; + + if (typeof opts.onResult === 'function') { + opts.onResult(result); + } + + if (isMatch === false) { + result.isMatch = false; + return returnObject ? result : false; + } + + if (isIgnored(input)) { + if (typeof opts.onIgnore === 'function') { + opts.onIgnore(result); + } + result.isMatch = false; + return returnObject ? result : false; + } + + if (typeof opts.onMatch === 'function') { + opts.onMatch(result); + } + return returnObject ? result : true; + }; + + if (returnState) { + matcher.state = state; + } + + return matcher; +}; + +/** + * Test `input` with the given `regex`. This is used by the main + * `picomatch()` function to test the input string. + * + * ```js + * const picomatch = require('picomatch'); + * // picomatch.test(input, regex[, options]); + * + * console.log(picomatch.test('foo/bar', /^(?:([^/]*?)\/([^/]*?))$/)); + * // { isMatch: true, match: [ 'foo/', 'foo', 'bar' ], output: 'foo/bar' } + * ``` + * @param {String} `input` String to test. + * @param {RegExp} `regex` + * @return {Object} Returns an object with matching info. + * @api public + */ + +picomatch.test = (input, regex, options, { glob, posix } = {}) => { + if (typeof input !== 'string') { + throw new TypeError('Expected input to be a string'); + } + + if (input === '') { + return { isMatch: false, output: '' }; + } + + const opts = options || {}; + const format = opts.format || (posix ? utils.toPosixSlashes : null); + let match = input === glob; + let output = (match && format) ? format(input) : input; + + if (match === false) { + output = format ? format(input) : input; + match = output === glob; + } + + if (match === false || opts.capture === true) { + if (opts.matchBase === true || opts.basename === true) { + match = picomatch.matchBase(input, regex, options, posix); + } else { + match = regex.exec(output); + } + } + + return { isMatch: Boolean(match), match, output }; +}; + +/** + * Match the basename of a filepath. + * + * ```js + * const picomatch = require('picomatch'); + * // picomatch.matchBase(input, glob[, options]); + * console.log(picomatch.matchBase('foo/bar.js', '*.js'); // true + * ``` + * @param {String} `input` String to test. + * @param {RegExp|String} `glob` Glob pattern or regex created by [.makeRe](#makeRe). + * @return {Boolean} + * @api public + */ + +picomatch.matchBase = (input, glob, options, posix = utils.isWindows(options)) => { + const regex = glob instanceof RegExp ? glob : picomatch.makeRe(glob, options); + return regex.test(path.basename(input)); +}; + +/** + * Returns true if **any** of the given glob `patterns` match the specified `string`. + * + * ```js + * const picomatch = require('picomatch'); + * // picomatch.isMatch(string, patterns[, options]); + * + * console.log(picomatch.isMatch('a.a', ['b.*', '*.a'])); //=> true + * console.log(picomatch.isMatch('a.a', 'b.*')); //=> false + * ``` + * @param {String|Array} str The string to test. + * @param {String|Array} patterns One or more glob patterns to use for matching. + * @param {Object} [options] See available [options](#options). + * @return {Boolean} Returns true if any patterns match `str` + * @api public + */ + +picomatch.isMatch = (str, patterns, options) => picomatch(patterns, options)(str); + +/** + * Parse a glob pattern to create the source string for a regular + * expression. + * + * ```js + * const picomatch = require('picomatch'); + * const result = picomatch.parse(pattern[, options]); + * ``` + * @param {String} `pattern` + * @param {Object} `options` + * @return {Object} Returns an object with useful properties and output to be used as a regex source string. + * @api public + */ + +picomatch.parse = (pattern, options) => { + if (Array.isArray(pattern)) return pattern.map(p => picomatch.parse(p, options)); + return parse(pattern, { ...options, fastpaths: false }); +}; + +/** + * Scan a glob pattern to separate the pattern into segments. + * + * ```js + * const picomatch = require('picomatch'); + * // picomatch.scan(input[, options]); + * + * const result = picomatch.scan('!./foo/*.js'); + * console.log(result); + * { prefix: '!./', + * input: '!./foo/*.js', + * start: 3, + * base: 'foo', + * glob: '*.js', + * isBrace: false, + * isBracket: false, + * isGlob: true, + * isExtglob: false, + * isGlobstar: false, + * negated: true } + * ``` + * @param {String} `input` Glob pattern to scan. + * @param {Object} `options` + * @return {Object} Returns an object with + * @api public + */ + +picomatch.scan = (input, options) => scan(input, options); + +/** + * Compile a regular expression from the `state` object returned by the + * [parse()](#parse) method. + * + * @param {Object} `state` + * @param {Object} `options` + * @param {Boolean} `returnOutput` Intended for implementors, this argument allows you to return the raw output from the parser. + * @param {Boolean} `returnState` Adds the state to a `state` property on the returned regex. Useful for implementors and debugging. + * @return {RegExp} + * @api public + */ + +picomatch.compileRe = (state, options, returnOutput = false, returnState = false) => { + if (returnOutput === true) { + return state.output; + } + + const opts = options || {}; + const prepend = opts.contains ? '' : '^'; + const append = opts.contains ? '' : '$'; + + let source = `${prepend}(?:${state.output})${append}`; + if (state && state.negated === true) { + source = `^(?!${source}).*$`; + } + + const regex = picomatch.toRegex(source, options); + if (returnState === true) { + regex.state = state; + } + + return regex; +}; + +/** + * Create a regular expression from a parsed glob pattern. + * + * ```js + * const picomatch = require('picomatch'); + * const state = picomatch.parse('*.js'); + * // picomatch.compileRe(state[, options]); + * + * console.log(picomatch.compileRe(state)); + * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/ + * ``` + * @param {String} `state` The object returned from the `.parse` method. + * @param {Object} `options` + * @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. + * @param {Boolean} `returnState` Implementors may use this argument to return the state from the parsed glob with the returned regular expression. + * @return {RegExp} Returns a regex created from the given pattern. + * @api public + */ + +picomatch.makeRe = (input, options = {}, returnOutput = false, returnState = false) => { + if (!input || typeof input !== 'string') { + throw new TypeError('Expected a non-empty string'); + } + + let parsed = { negated: false, fastpaths: true }; + + if (options.fastpaths !== false && (input[0] === '.' || input[0] === '*')) { + parsed.output = parse.fastpaths(input, options); + } + + if (!parsed.output) { + parsed = parse(input, options); + } + + return picomatch.compileRe(parsed, options, returnOutput, returnState); +}; + +/** + * Create a regular expression from the given regex source string. + * + * ```js + * const picomatch = require('picomatch'); + * // picomatch.toRegex(source[, options]); + * + * const { output } = picomatch.parse('*.js'); + * console.log(picomatch.toRegex(output)); + * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/ + * ``` + * @param {String} `source` Regular expression source string. + * @param {Object} `options` + * @return {RegExp} + * @api public + */ + +picomatch.toRegex = (source, options) => { + try { + const opts = options || {}; + return new RegExp(source, opts.flags || (opts.nocase ? 'i' : '')); + } catch (err) { + if (options && options.debug === true) throw err; + return /$^/; + } +}; + +/** + * Picomatch constants. + * @return {Object} + */ + +picomatch.constants = constants; + +/** + * Expose "picomatch" + */ + +module.exports = picomatch; |