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Showing content from https://github.com/micromatch/extglob below:

micromatch/extglob: Extended globs. Add (almost) the expressive power of regular expressions to glob patterns.

Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.

Install with npm:

$ npm install --save extglob

Install with yarn:

• Convert an extglob string to a regex-compatible string.
• More complete (and correct) support than minimatch (minimatch fails a large percentage of the extglob tests)
• Handles negation patterns
• Handles nested patterns
• Organized code base, easy to maintain and make changes when edge cases arise
• As you can see by the benchmarks, extglob doesn't pay with speed for it's completeness, accuracy and quality.

Heads up!: This library only supports extglobs, to handle full glob patterns and other extended globbing features use micromatch instead.

The main export is a function that takes a string and options, and returns an object with the parsed AST and the compiled .output, which is a regex-compatible string that can be used for matching.

var extglob = require('extglob');
console.log(extglob('!(xyz)*.js'));

Extended globbing patterns can be defined as follows (as described by the bash man page):

Convert the given extglob pattern into a regex-compatible string. Returns an object with the compiled result and the parsed AST.

Params

• pattern {String}
• options {Object}
• returns {String}

Example

const extglob = require('extglob');
console.log(extglob('*.!(*a)'));
//=> '(?!\\.)[^/]*?\\.(?!(?!\\.)[^/]*?a\\b).*?'

Takes an array of strings and an extglob pattern and returns a new array that contains only the strings that match the pattern.

Params

• list {Array}: Array of strings to match
• pattern {String}: Extglob pattern
• options {Object}
• returns {Array}: Returns an array of matches

Example

const extglob = require('extglob');
console.log(extglob.match(['a.a', 'a.b', 'a.c'], '*.!(*a)'));
//=> ['a.b', 'a.c']

Returns true if the specified string matches the given extglob pattern.

Params

• string {String}: String to match
• pattern {String}: Extglob pattern
• options {String}
• returns {Boolean}

Example

const extglob = require('extglob');

console.log(extglob.isMatch('a.a', '*.!(*a)'));
//=> false
console.log(extglob.isMatch('a.b', '*.!(*a)'));
//=> true

Returns true if the given string contains the given pattern. Similar to .isMatch but the pattern can match any part of the string.

Params

• str {String}: The string to match.
• pattern {String}: Glob pattern to use for matching.
• options {Object}
• returns {Boolean}: Returns true if the patter matches any part of str.

Example

const extglob = require('extglob');
console.log(extglob.contains('aa/bb/cc', '*b'));
//=> true
console.log(extglob.contains('aa/bb/cc', '*d'));
//=> false

Takes an extglob pattern and returns a matcher function. The returned function takes the string to match as its only argument.

Params

• pattern {String}: Extglob pattern
• options {String}
• returns {Boolean}

Example

const extglob = require('extglob');
const isMatch = extglob.matcher('*.!(*a)');

console.log(isMatch('a.a'));
//=> false
console.log(isMatch('a.b'));
//=> true

Convert the given extglob pattern into a regex-compatible string. Returns an object with the compiled result and the parsed AST.

Params

• str {String}
• options {Object}
• returns {String}

Example

const extglob = require('extglob');
console.log(extglob.create('*.!(*a)').output);
//=> '(?!\\.)[^/]*?\\.(?!(?!\\.)[^/]*?a\\b).*?'

Returns an array of matches captured by pattern in string, or null if the pattern did not match.

Params

• pattern {String}: Glob pattern to use for matching.
• string {String}: String to match
• options {Object}: See available options for changing how matches are performed
• returns {Boolean}: Returns an array of captures if the string matches the glob pattern, otherwise null.

Example

const extglob = require('extglob');
extglob.capture(pattern, string[, options]);

console.log(extglob.capture('test/*.js', 'test/foo.js'));
//=> ['foo']
console.log(extglob.capture('test/*.js', 'foo/bar.css'));
//=> null

Create a regular expression from the given pattern and options.

Params

• pattern {String}: The pattern to convert to regex.
• options {Object}
• returns {RegExp}

Example

const extglob = require('extglob');
const re = extglob.makeRe('*.!(*a)');
console.log(re);
//=> /^[^\/]*?\.(?![^\/]*?a)[^\/]*?$/

Available options are based on the options from Bash (and the option names used in bash).

Type: boolean

Default: undefined

When enabled, the pattern itself will be returned when no matches are found.

Alias for options.nullglob, included for parity with minimatch.

Type: boolean

Default: undefined

Functions are memoized based on the given glob patterns and options. Disable memoization by setting options.cache to false.

Type: boolean

Default: undefined

Throw an error is no matches are found.

Last run on April 30, 2018

# negation-nested (49 bytes)
  extglob x 1,380,148 ops/sec ±3.35% (62 runs sampled)
  minimatch x 156,800 ops/sec ±4.13% (76 runs sampled)

  fastest is extglob (by 880% avg)

# negation-simple (43 bytes)
  extglob x 1,821,746 ops/sec ±1.61% (76 runs sampled)
  minimatch x 365,618 ops/sec ±1.87% (84 runs sampled)

  fastest is extglob (by 498% avg)

# range-false (57 bytes)
  extglob x 2,038,592 ops/sec ±3.39% (85 runs sampled)
  minimatch x 310,897 ops/sec ±12.62% (87 runs sampled)

  fastest is extglob (by 656% avg)

# range-true (56 bytes)
  extglob x 2,105,081 ops/sec ±0.69% (91 runs sampled)
  minimatch x 332,188 ops/sec ±0.45% (91 runs sampled)

  fastest is extglob (by 634% avg)

# star-simple (46 bytes)
  extglob x 2,154,184 ops/sec ±0.99% (89 runs sampled)
  minimatch x 452,812 ops/sec ±0.51% (88 runs sampled)

  fastest is extglob (by 476% avg)

This library has complete parity with Bash 4.3 with only a couple of minor differences.

• In some cases Bash returns true if the given string "contains" the pattern, whereas this library returns true if the string is an exact match for the pattern. You can relax this by setting options.contains to true.
• This library is more accurate than Bash and thus does not fail some of the tests that Bash 4.3 still lists as failing in their unit tests

• braces: Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support… more | homepage
• expand-brackets: Expand POSIX bracket expressions (character classes) in glob patterns. | homepage
• expand-range: Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used… more | homepage
• fill-range: Fill in a range of numbers or letters, optionally passing an increment or step to… more | homepage
• micromatch: Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | homepage

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

Copyright © 2018, Jon Schlinkert. Released under the MIT License.

This file was generated by verb-generate-readme, v0.6.0, on April 30, 2018.

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