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'use strict';
const path = require('path');
const scan = require('./scan');
const parse = require('./parse');
const utils = require('./utils');
/**
* 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)) {
let fns = glob.map(input => picomatch(input, options, returnState));
return str => {
for (let isMatch of fns) {
let state = isMatch(str);
if (state) return state;
}
return false;
};
}
if (typeof glob !== 'string' || glob === '') {
throw new TypeError('Expected pattern to be a non-empty string');
}
let opts = options || {};
let posix = utils.isWindows(options);
let regex = picomatch.makeRe(glob, options, false, true);
let state = regex.state;
delete regex.state;
let isIgnored = () => false;
if (opts.ignore) {
let ignoreOpts = { ...options, ignore: null, onMatch: null, onResult: null };
isIgnored = picomatch(opts.ignore, ignoreOpts, returnState);
}
const matcher = (input, returnObject = false) => {
let { isMatch, match, output } = picomatch.test(input, regex, options, { glob, posix });
let 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: '' };
}
let opts = options || {};
let 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: !!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)) => {
let 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(glob[, options]);
* ```
* @param {String} `glob`
* @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 = (glob, options) => parse(glob, options);
/**
* 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',
* // base: 'foo',
* // glob: '*.js',
* // negated: true,
* // isGlob: 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);
/**
* Create a regular expression from a glob pattern.
*
* ```js
* const picomatch = require('picomatch');
* // picomatch.makeRe(input[, options]);
*
* console.log(picomatch.makeRe('*.js'));
* //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
* ```
* @param {String} `input` A glob pattern to convert to regex.
* @param {Object} `options`
* @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 opts = options || {};
let prepend = opts.contains ? '' : '^';
let append = opts.contains ? '' : '$';
let state = { negated: false, fastpaths: true };
let prefix = '';
let output;
if (input.startsWith('./')) {
input = input.slice(2);
prefix = state.prefix = './';
}
if (opts.fastpaths !== false && (input[0] === '.' || input[0] === '*')) {
output = parse.fastpaths(input, options);
}
if (output === void 0) {
state = picomatch.parse(input, options);
state.prefix = prefix + (state.prefix || '');
output = state.output;
}
if (returnOutput === true) {
return output;
}
let source = `${prepend}(?:${output})${append}`;
if (state && state.negated === true) {
source = `^(?!${source}).*$`;
}
let regex = picomatch.toRegex(source, options);
if (returnState === true) {
regex.state = state;
}
return regex;
};
/**
* 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)$/
* ```
* @param {String} `source` Regular expression source string.
* @param {Object} `options`
* @return {RegExp}
* @api public
*/
picomatch.toRegex = (source, options) => {
try {
let opts = options || {};
return new RegExp(source, opts.flags || (opts.nocase ? 'i' : ''));
} catch (err) {
if (options && options.debug === true) throw err;
return /$^/;
}
};
/**
* Picomatch constants.
* @return {Object}
*/
picomatch.constants = require('./constants');
/**
* Expose "picomatch"
*/
module.exports = picomatch;