1# nanomatch [![NPM version](https://img.shields.io/npm/v/nanomatch.svg?style=flat)](https://www.npmjs.com/package/nanomatch) [![NPM monthly downloads](https://img.shields.io/npm/dm/nanomatch.svg?style=flat)](https://npmjs.org/package/nanomatch) [![NPM total downloads](https://img.shields.io/npm/dt/nanomatch.svg?style=flat)](https://npmjs.org/package/nanomatch) [![Linux Build Status](https://img.shields.io/travis/micromatch/nanomatch.svg?style=flat&label=Travis)](https://travis-ci.org/micromatch/nanomatch) [![Windows Build Status](https://img.shields.io/appveyor/ci/micromatch/nanomatch.svg?style=flat&label=AppVeyor)](https://ci.appveyor.com/project/micromatch/nanomatch)
2
3> Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash 4.3 wildcard support only (no support for exglobs, posix brackets or braces)
4
5Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
6
7## Table of Contents
8
9<details>
10<summary><strong>Details</strong></summary>
11
12- [Install](#install)
13- [What is nanomatch?](#what-is-nanomatch)
14- [Getting started](#getting-started)
15  * [Installing nanomatch](#installing-nanomatch)
16  * [Usage](#usage)
17- [Documentation](#documentation)
18  * [Escaping](#escaping)
19- [API](#api)
20- [Options](#options)
21  * [options.basename](#optionsbasename)
22  * [options.bash](#optionsbash)
23  * [options.cache](#optionscache)
24  * [options.dot](#optionsdot)
25  * [options.failglob](#optionsfailglob)
26  * [options.ignore](#optionsignore)
27  * [options.matchBase](#optionsmatchbase)
28  * [options.nocase](#optionsnocase)
29  * [options.nodupes](#optionsnodupes)
30  * [options.noglobstar](#optionsnoglobstar)
31  * [options.nonegate](#optionsnonegate)
32  * [options.nonull](#optionsnonull)
33  * [options.nullglob](#optionsnullglob)
34  * [options.slash](#optionsslash)
35  * [options.star](#optionsstar)
36  * [options.snapdragon](#optionssnapdragon)
37  * [options.sourcemap](#optionssourcemap)
38  * [options.unescape](#optionsunescape)
39  * [options.unixify](#optionsunixify)
40- [Features](#features)
41- [Bash expansion libs](#bash-expansion-libs)
42- [Benchmarks](#benchmarks)
43  * [Running benchmarks](#running-benchmarks)
44  * [Nanomatch vs. Minimatch vs. Multimatch](#nanomatch-vs-minimatch-vs-multimatch)
45- [About](#about)
46
47</details>
48
49## Install
50
51Install with [npm](https://www.npmjs.com/):
52
53```sh
54$ npm install --save nanomatch
55```
56
57<details>
58<summary><strong>Release history</strong></summary>
59
60## History
61
62### key
63
64Changelog entries are classified using the following labels _(from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog)_):
65
66* `added`: for new features
67* `changed`: for changes in existing functionality
68* `deprecated`: for once-stable features removed in upcoming releases
69* `removed`: for deprecated features removed in this release
70* `fixed`: for any bug fixes
71* `bumped`: updated dependencies, only minor or higher will be listed.
72
73### [1.1.0](https://github.com/micromatch/nanomatch/compare/1.0.4...1.1.0) - 2017-04-11
74
75**Fixed**
76
77* adds support for unclosed quotes
78
79**Added**
80
81* adds support for `options.noglobstar`
82
83### [1.0.4](https://github.com/micromatch/nanomatch/compare/1.0.3...1.0.4) - 2017-04-06
84
85Housekeeping updates. Adds documentation section about escaping, cleans up utils.
86
87### [1.0.3](https://github.com/micromatch/nanomatch/compare/1.0.1...1.0.3) - 2017-04-06
88
89This release includes fixes for windows path edge cases and other improvements for stricter adherence to bash spec.
90
91**Fixed**
92
93* More windows path edge cases
94
95**Added**
96
97* Support for bash-like quoted strings for escaping sequences of characters, such as `foo/"**"/bar` where `**` should be matched literally and not evaluated as special characters.
98
99### [1.0.1](https://github.com/micromatch/nanomatch/compare/1.0.0...1.0.1) - 2016-12-12
100
101**Added**
102
103* Support for windows path edge cases where backslashes are used in brackets or other unusual combinations.
104
105### [1.0.0](https://github.com/micromatch/nanomatch/compare/0.1.0...1.0.0) - 2016-12-12
106
107Stable release.
108
109### [0.1.0] - 2016-10-08
110
111First release.
112
113</details>
114
115## What is nanomatch?
116
117Nanomatch is a fast and accurate glob matcher with full support for standard Bash glob features, including the following "metacharacters": `*`, `**`, `?` and `[...]`.
118
119**Learn more**
120
121* [Getting started](#getting-started): learn how to install and begin using nanomatch
122* [Features](#features): jump to info about supported patterns, and a glob matching reference
123* [API documentation](#api): jump to available options and methods
124* [Unit tests](test): visit unit tests. there is no better way to learn a code library than spending time the unit tests. Nanomatch has 36,000 unit tests - go become a glob matching ninja!
125
126<details>
127<summary><strong>How is this different?</strong></summary>
128
129**Speed and accuracy**
130
131Nanomatch uses [snapdragon](https://github.com/jonschlinkert/snapdragon) for parsing and compiling globs, which results in:
132
133* Granular control over the entire conversion process in a way that is easy to understand, reason about, and customize.
134* Faster matching, from a combination of optimized glob patterns and (optional) caching.
135* Much greater accuracy than minimatch. In fact, nanomatch passes _all of the spec tests_ from bash, including some that bash still fails. However, since there is no real specification for globs, if you encounter a pattern that yields unexpected match results [after researching previous issues](../../issues), [please let us know](../../issues/new).
136
137**Basic globbing only**
138
139Nanomatch supports [basic globbing only](#features), which is limited to `*`, `**`, `?` and regex-like brackets.
140
141If you need support for the other [bash "expansion" types](#bash-expansion-libs) (in addition to the wildcard matching provided by nanomatch), consider using [micromatch](https://github.com/micromatch/micromatch) instead. _(micromatch >=3.0.0  uses the nanomatch parser and compiler for basic glob matching)_
142
143</details>
144
145## Getting started
146
147### Installing nanomatch
148
149**Install with [yarn](https://yarnpkg.com/)**
150
151```sh
152$ yarn add nanomatch
153```
154
155**Install with [npm](https://npmjs.com)**
156
157```sh
158$ npm install nanomatch
159```
160
161### Usage
162
163Add nanomatch to your project using node's `require()` system:
164
165```js
166var nanomatch = require('nanomatch');
167
168// the main export is a function that takes an array of strings to match
169// and a string or array of patterns to use for matching
170nanomatch(list, patterns[, options]);
171```
172
173**Params**
174
175* `list` **{String|Array}**: List of strings to perform matches against. This is often a list of file paths.
176* `patterns` **{String|Array}**: One or more [glob paterns](#features) to use for matching.
177* `options` **{Object}**: Any [supported options](#options) may be passed
178
179**Examples**
180
181```js
182var nm = require('nanomatch');
183console.log(nm(['a', 'b/b', 'c/c/c'], '*'));
184//=> ['a']
185
186console.log(nm(['a', 'b/b', 'c/c/c'], '*/*'));
187//=> ['b/b']
188
189console.log(nm(['a', 'b/b', 'c/c/c'], '**'));
190//=> ['a', 'b/b', 'c/c/c']
191```
192
193See the [API documentation](#api) for available methods and [options](https://github.com/einaros/options.js).
194
195## Documentation
196
197### Escaping
198
199_Backslashes and quotes_ can be used to escape characters, forcing nanomatch to regard those characters as a literal characters.
200
201**Backslashes**
202
203Use backslashes to escape single characters. For example, the following pattern would match `foo/*/bar` exactly:
204
205```js
206'foo/\*/bar'
207```
208
209The following pattern would match `foo/` followed by a literal `*`, followed by zero or more of any characters besides `/`, followed by `/bar`.
210
211```js
212'foo/\**/bar'
213```
214
215**Quoted strings**
216
217Use single or double quotes to escape sequences of characters. For example, the following patterns would match `foo/**/bar` exactly:
218
219```js
220'foo/"**"/bar'
221'foo/\'**\'/bar'
222"foo/'**'/bar"
223```
224
225**Matching literal quotes**
226
227If you need to match quotes literally, you can escape them as well. For example, the following will match `foo/"*"/bar`, `foo/"a"/bar`, `foo/"b"/bar`, or `foo/"c"/bar`:
228
229```js
230'foo/\\"*\\"/bar'
231```
232
233And the following will match `foo/'*'/bar`, `foo/'a'/bar`, `foo/'b'/bar`, or `foo/'c'/bar`:
234
235```js
236'foo/\\\'*\\\'/bar'
237```
238
239## API
240
241### [nanomatch](index.js#L40)
242
243The main function takes a list of strings and one or more glob patterns to use for matching.
244
245**Params**
246
247* `list` **{Array}**: A list of strings to match
248* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
249* `options` **{Object}**: See available [options](#options) for changing how matches are performed
250* `returns` **{Array}**: Returns an array of matches
251
252**Example**
253
254```js
255var nm = require('nanomatch');
256nm(list, patterns[, options]);
257
258console.log(nm(['a.js', 'a.txt'], ['*.js']));
259//=> [ 'a.js' ]
260```
261
262### [.match](index.js#L106)
263
264Similar to the main function, but `pattern` must be a string.
265
266**Params**
267
268* `list` **{Array}**: Array of strings to match
269* `pattern` **{String}**: Glob pattern to use for matching.
270* `options` **{Object}**: See available [options](#options) for changing how matches are performed
271* `returns` **{Array}**: Returns an array of matches
272
273**Example**
274
275```js
276var nm = require('nanomatch');
277nm.match(list, pattern[, options]);
278
279console.log(nm.match(['a.a', 'a.aa', 'a.b', 'a.c'], '*.a'));
280//=> ['a.a', 'a.aa']
281```
282
283### [.isMatch](index.js#L167)
284
285Returns true if the specified `string` matches the given glob `pattern`.
286
287**Params**
288
289* `string` **{String}**: String to match
290* `pattern` **{String}**: Glob pattern to use for matching.
291* `options` **{Object}**: See available [options](#options) for changing how matches are performed
292* `returns` **{Boolean}**: Returns true if the string matches the glob pattern.
293
294**Example**
295
296```js
297var nm = require('nanomatch');
298nm.isMatch(string, pattern[, options]);
299
300console.log(nm.isMatch('a.a', '*.a'));
301//=> true
302console.log(nm.isMatch('a.b', '*.a'));
303//=> false
304```
305
306### [.some](index.js#L205)
307
308Returns true if some of the elements in the given `list` match any of the given glob `patterns`.
309
310**Params**
311
312* `list` **{String|Array}**: The string or array of strings to test. Returns as soon as the first match is found.
313* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
314* `options` **{Object}**: See available [options](#options) for changing how matches are performed
315* `returns` **{Boolean}**: Returns true if any patterns match `str`
316
317**Example**
318
319```js
320var nm = require('nanomatch');
321nm.some(list, patterns[, options]);
322
323console.log(nm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
324// true
325console.log(nm.some(['foo.js'], ['*.js', '!foo.js']));
326// false
327```
328
329### [.every](index.js#L243)
330
331Returns true if every element in the given `list` matches at least one of the given glob `patterns`.
332
333**Params**
334
335* `list` **{String|Array}**: The string or array of strings to test.
336* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
337* `options` **{Object}**: See available [options](#options) for changing how matches are performed
338* `returns` **{Boolean}**: Returns true if any patterns match `str`
339
340**Example**
341
342```js
343var nm = require('nanomatch');
344nm.every(list, patterns[, options]);
345
346console.log(nm.every('foo.js', ['foo.js']));
347// true
348console.log(nm.every(['foo.js', 'bar.js'], ['*.js']));
349// true
350console.log(nm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
351// false
352console.log(nm.every(['foo.js'], ['*.js', '!foo.js']));
353// false
354```
355
356### [.any](index.js#L277)
357
358Returns true if **any** of the given glob `patterns` match the specified `string`.
359
360**Params**
361
362* `str` **{String|Array}**: The string to test.
363* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
364* `options` **{Object}**: See available [options](#options) for changing how matches are performed
365* `returns` **{Boolean}**: Returns true if any patterns match `str`
366
367**Example**
368
369```js
370var nm = require('nanomatch');
371nm.any(string, patterns[, options]);
372
373console.log(nm.any('a.a', ['b.*', '*.a']));
374//=> true
375console.log(nm.any('a.a', 'b.*'));
376//=> false
377```
378
379### [.all](index.js#L325)
380
381Returns true if **all** of the given `patterns` match the specified string.
382
383**Params**
384
385* `str` **{String|Array}**: The string to test.
386* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
387* `options` **{Object}**: See available [options](#options) for changing how matches are performed
388* `returns` **{Boolean}**: Returns true if any patterns match `str`
389
390**Example**
391
392```js
393var nm = require('nanomatch');
394nm.all(string, patterns[, options]);
395
396console.log(nm.all('foo.js', ['foo.js']));
397// true
398
399console.log(nm.all('foo.js', ['*.js', '!foo.js']));
400// false
401
402console.log(nm.all('foo.js', ['*.js', 'foo.js']));
403// true
404
405console.log(nm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));
406// true
407```
408
409### [.not](index.js#L359)
410
411Returns a list of strings that _**do not match any**_ of the given `patterns`.
412
413**Params**
414
415* `list` **{Array}**: Array of strings to match.
416* `patterns` **{String|Array}**: One or more glob pattern to use for matching.
417* `options` **{Object}**: See available [options](#options) for changing how matches are performed
418* `returns` **{Array}**: Returns an array of strings that **do not match** the given patterns.
419
420**Example**
421
422```js
423var nm = require('nanomatch');
424nm.not(list, patterns[, options]);
425
426console.log(nm.not(['a.a', 'b.b', 'c.c'], '*.a'));
427//=> ['b.b', 'c.c']
428```
429
430### [.contains](index.js#L394)
431
432Returns true if the given `string` contains the given pattern. Similar to [.isMatch](#isMatch) but the pattern can match any part of the string.
433
434**Params**
435
436* `str` **{String}**: The string to match.
437* `patterns` **{String|Array}**: Glob pattern to use for matching.
438* `options` **{Object}**: See available [options](#options) for changing how matches are performed
439* `returns` **{Boolean}**: Returns true if the patter matches any part of `str`.
440
441**Example**
442
443```js
444var nm = require('nanomatch');
445nm.contains(string, pattern[, options]);
446
447console.log(nm.contains('aa/bb/cc', '*b'));
448//=> true
449console.log(nm.contains('aa/bb/cc', '*d'));
450//=> false
451```
452
453### [.matchKeys](index.js#L450)
454
455Filter the keys of the given object with the given `glob` pattern and `options`. Does not attempt to match nested keys. If you need this feature, use [glob-object](https://github.com/jonschlinkert/glob-object) instead.
456
457**Params**
458
459* `object` **{Object}**: The object with keys to filter.
460* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
461* `options` **{Object}**: See available [options](#options) for changing how matches are performed
462* `returns` **{Object}**: Returns an object with only keys that match the given patterns.
463
464**Example**
465
466```js
467var nm = require('nanomatch');
468nm.matchKeys(object, patterns[, options]);
469
470var obj = { aa: 'a', ab: 'b', ac: 'c' };
471console.log(nm.matchKeys(obj, '*b'));
472//=> { ab: 'b' }
473```
474
475### [.matcher](index.js#L479)
476
477Returns a memoized matcher function from the given glob `pattern` and `options`. The returned function takes a string to match as its only argument and returns true if the string is a match.
478
479**Params**
480
481* `pattern` **{String}**: Glob pattern
482* `options` **{Object}**: See available [options](#options) for changing how matches are performed.
483* `returns` **{Function}**: Returns a matcher function.
484
485**Example**
486
487```js
488var nm = require('nanomatch');
489nm.matcher(pattern[, options]);
490
491var isMatch = nm.matcher('*.!(*a)');
492console.log(isMatch('a.a'));
493//=> false
494console.log(isMatch('a.b'));
495//=> true
496```
497
498### [.capture](index.js#L560)
499
500Returns an array of matches captured by `pattern` in `string, or`null` if the pattern did not match.
501
502**Params**
503
504* `pattern` **{String}**: Glob pattern to use for matching.
505* `string` **{String}**: String to match
506* `options` **{Object}**: See available [options](#options) for changing how matches are performed
507* `returns` **{Boolean}**: Returns an array of captures if the string matches the glob pattern, otherwise `null`.
508
509**Example**
510
511```js
512var nm = require('nanomatch');
513nm.capture(pattern, string[, options]);
514
515console.log(nm.capture('test/*.js', 'test/foo.js'));
516//=> ['foo']
517console.log(nm.capture('test/*.js', 'foo/bar.css'));
518//=> null
519```
520
521### [.makeRe](index.js#L595)
522
523Create a regular expression from the given glob `pattern`.
524
525**Params**
526
527* `pattern` **{String}**: A glob pattern to convert to regex.
528* `options` **{Object}**: See available [options](#options) for changing how matches are performed.
529* `returns` **{RegExp}**: Returns a regex created from the given pattern.
530
531**Example**
532
533```js
534var nm = require('nanomatch');
535nm.makeRe(pattern[, options]);
536
537console.log(nm.makeRe('*.js'));
538//=> /^(?:(\.[\\\/])?(?!\.)(?=.)[^\/]*?\.js)$/
539```
540
541### [.create](index.js#L658)
542
543Parses the given glob `pattern` and returns an object with the compiled `output` and optional source `map`.
544
545**Params**
546
547* `pattern` **{String}**: Glob pattern to parse and compile.
548* `options` **{Object}**: Any [options](#options) to change how parsing and compiling is performed.
549* `returns` **{Object}**: Returns an object with the parsed AST, compiled string and optional source map.
550
551**Example**
552
553```js
554var nm = require('nanomatch');
555nm.create(pattern[, options]);
556
557console.log(nm.create('abc/*.js'));
558// { options: { source: 'string', sourcemap: true },
559//   state: {},
560//   compilers:
561//    { ... },
562//   output: '(\\.[\\\\\\/])?abc\\/(?!\\.)(?=.)[^\\/]*?\\.js',
563//   ast:
564//    { type: 'root',
565//      errors: [],
566//      nodes:
567//       [ ... ],
568//      dot: false,
569//      input: 'abc/*.js' },
570//   parsingErrors: [],
571//   map:
572//    { version: 3,
573//      sources: [ 'string' ],
574//      names: [],
575//      mappings: 'AAAA,GAAG,EAAC,kBAAC,EAAC,EAAE',
576//      sourcesContent: [ 'abc/*.js' ] },
577//   position: { line: 1, column: 28 },
578//   content: {},
579//   files: {},
580//   idx: 6 }
581```
582
583### [.parse](index.js#L697)
584
585Parse the given `str` with the given `options`.
586
587**Params**
588
589* `str` **{String}**
590* `options` **{Object}**
591* `returns` **{Object}**: Returns an AST
592
593**Example**
594
595```js
596var nm = require('nanomatch');
597nm.parse(pattern[, options]);
598
599var ast = nm.parse('a/{b,c}/d');
600console.log(ast);
601// { type: 'root',
602//   errors: [],
603//   input: 'a/{b,c}/d',
604//   nodes:
605//    [ { type: 'bos', val: '' },
606//      { type: 'text', val: 'a/' },
607//      { type: 'brace',
608//        nodes:
609//         [ { type: 'brace.open', val: '{' },
610//           { type: 'text', val: 'b,c' },
611//           { type: 'brace.close', val: '}' } ] },
612//      { type: 'text', val: '/d' },
613//      { type: 'eos', val: '' } ] }
614```
615
616### [.compile](index.js#L745)
617
618Compile the given `ast` or string with the given `options`.
619
620**Params**
621
622* `ast` **{Object|String}**
623* `options` **{Object}**
624* `returns` **{Object}**: Returns an object that has an `output` property with the compiled string.
625
626**Example**
627
628```js
629var nm = require('nanomatch');
630nm.compile(ast[, options]);
631
632var ast = nm.parse('a/{b,c}/d');
633console.log(nm.compile(ast));
634// { options: { source: 'string' },
635//   state: {},
636//   compilers:
637//    { eos: [Function],
638//      noop: [Function],
639//      bos: [Function],
640//      brace: [Function],
641//      'brace.open': [Function],
642//      text: [Function],
643//      'brace.close': [Function] },
644//   output: [ 'a/(b|c)/d' ],
645//   ast:
646//    { ... },
647//   parsingErrors: [] }
648```
649
650### [.clearCache](index.js#L768)
651
652Clear the regex cache.
653
654**Example**
655
656```js
657nm.clearCache();
658```
659
660## Options
661
662<details>
663<summary><strong>basename</strong></summary>
664
665### options.basename
666
667Allow glob patterns without slashes to match a file path based on its basename. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `matchBase`.
668
669Type: `boolean`
670
671Default: `false`
672
673**Example**
674
675```js
676nm(['a/b.js', 'a/c.md'], '*.js');
677//=> []
678
679nm(['a/b.js', 'a/c.md'], '*.js', {matchBase: true});
680//=> ['a/b.js']
681```
682
683</details>
684
685<details>
686<summary><strong>bash</strong></summary>
687
688### options.bash
689
690Enabled by default, this option enforces bash-like behavior with stars immediately following a bracket expression. Bash bracket expressions are similar to regex character classes, but unlike regex, a star following a bracket expression **does not repeat the bracketed characters**. Instead, the star is treated the same as an other star.
691
692Type: `boolean`
693
694Default: `true`
695
696**Example**
697
698```js
699var files = ['abc', 'ajz'];
700console.log(nm(files, '[a-c]*'));
701//=> ['abc', 'ajz']
702
703console.log(nm(files, '[a-c]*', {bash: false}));
704```
705
706</details>
707
708<details>
709<summary><strong>cache</strong></summary>
710
711### options.cache
712
713Disable regex and function memoization.
714
715Type: `boolean`
716
717Default: `undefined`
718
719</details>
720
721<details>
722<summary><strong>dot</strong></summary>
723
724### options.dot
725
726Match dotfiles. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `dot`.
727
728Type: `boolean`
729
730Default: `false`
731
732</details>
733
734<details>
735<summary><strong>failglob</strong></summary>
736
737### options.failglob
738
739Similar to the `--failglob` behavior in Bash, throws an error when no matches are found.
740
741Type: `boolean`
742
743Default: `undefined`
744
745</details>
746
747<details>
748<summary><strong>ignore</strong></summary>
749
750### options.ignore
751
752String or array of glob patterns to match files to ignore.
753
754Type: `String|Array`
755
756Default: `undefined`
757
758</details>
759
760<details>
761<summary><strong>matchBase</strong></summary>
762
763### options.matchBase
764
765Alias for [options.basename](#options-basename).
766
767</details>
768
769<details>
770<summary><strong>nocase</strong></summary>
771
772### options.nocase
773
774Use a case-insensitive regex for matching files. Same behavior as [minimatch](https://github.com/isaacs/minimatch).
775
776Type: `boolean`
777
778Default: `undefined`
779
780</details>
781
782<details>
783<summary><strong>nodupes</strong></summary>
784
785### options.nodupes
786
787Remove duplicate elements from the result array.
788
789Type: `boolean`
790
791Default: `true` (enabled by default)
792
793**Example**
794
795Example of using the `unescape` and `nodupes` options together:
796
797```js
798nm.match(['a/b/c', 'a/b/c'], '**');
799//=> ['abc']
800
801nm.match(['a/b/c', 'a/b/c'], '**', {nodupes: false});
802//=> ['a/b/c', 'a/b/c']
803```
804
805</details>
806
807<details>
808<summary><strong>nonegate</strong></summary>
809
810### options.noglobstar
811
812Disable matching with globstars (`**`).
813
814Type: `boolean`
815
816Default: `undefined`
817
818```js
819nm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**');
820//=> ['a/b', 'a/b/c', 'a/b/c/d']
821
822nm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**', {noglobstar: true});
823//=> ['a/b']
824```
825
826</details>
827
828<details>
829<summary><strong>nonegate</strong></summary>
830
831### options.nonegate
832
833Disallow negation (`!`) patterns, and treat leading `!` as a literal character to match.
834
835Type: `boolean`
836
837Default: `undefined`
838
839</details>
840
841<details>
842<summary><strong>nonull</strong></summary>
843
844### options.nonull
845
846Alias for [options.nullglob](#options-nullglob).
847
848</details>
849
850<details>
851<summary><strong>nullglob</strong></summary>
852
853### options.nullglob
854
855If `true`, when no matches are found the actual (arrayified) glob pattern is returned instead of an empty array. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `nonull`.
856
857Type: `boolean`
858
859Default: `undefined`
860
861</details>
862
863<details>
864<summary><strong><a name="slash">slash</a></strong></summary>
865
866### options.slash
867
868Customize the slash character(s) to use for matching.
869
870Type: `string|function`
871
872Default: `[/\\]` (forward slash and backslash)
873
874</details>
875
876<details>
877<summary><strong><a name="star">star</a></strong></summary>
878
879### options.star
880
881Customize the star character(s) to use for matching. It's not recommended that you modify this unless you have advanced knowledge of the compiler and matching rules.
882
883Type: `string|function`
884
885Default: `[^/\\]*?`
886
887</details>
888
889<details>
890<summary><strong><a name="snapdragon">snapdragon</a></strong></summary>
891
892### options.snapdragon
893
894Pass your own instance of [snapdragon](https://github.com/jonschlinkert/snapdragon) to customize parsers or compilers.
895
896Type: `object`
897
898Default: `undefined`
899
900</details>
901
902<details>
903<summary><strong>snapdragon</strong></summary>
904
905### options.sourcemap
906
907Generate a source map by enabling the `sourcemap` option with the `.parse`, `.compile`, or `.create` methods.
908
909**Examples**
910
911```js
912var nm = require('nanomatch');
913
914var res = nm.create('abc/*.js', {sourcemap: true});
915console.log(res.map);
916// { version: 3,
917//   sources: [ 'string' ],
918//   names: [],
919//   mappings: 'AAAA,GAAG,EAAC,iBAAC,EAAC,EAAE',
920//   sourcesContent: [ 'abc/*.js' ] }
921
922var ast = nm.parse('abc/**/*.js');
923var res = nm.compile(ast, {sourcemap: true});
924console.log(res.map);
925// { version: 3,
926//   sources: [ 'string' ],
927//   names: [],
928//   mappings: 'AAAA,GAAG,EAAC,2BAAE,EAAC,iBAAC,EAAC,EAAE',
929//   sourcesContent: [ 'abc/**/*.js' ] }
930```
931
932</details>
933
934<details>
935<summary><strong>unescape</strong></summary>
936
937### options.unescape
938
939Remove backslashes from returned matches.
940
941Type: `boolean`
942
943Default: `undefined`
944
945**Example**
946
947In this example we want to match a literal `*`:
948
949```js
950nm.match(['abc', 'a\\*c'], 'a\\*c');
951//=> ['a\\*c']
952
953nm.match(['abc', 'a\\*c'], 'a\\*c', {unescape: true});
954//=> ['a*c']
955```
956
957</details>
958
959<details>
960<summary><strong>unixify</strong></summary>
961
962### options.unixify
963
964Convert path separators on returned files to posix/unix-style forward slashes.
965
966Type: `boolean`
967
968Default: `true`
969
970**Example**
971
972```js
973nm.match(['a\\b\\c'], 'a/**');
974//=> ['a/b/c']
975
976nm.match(['a\\b\\c'], {unixify: false});
977//=> ['a\\b\\c']
978```
979
980</details>
981
982## Features
983
984Nanomatch has full support for standard Bash glob features, including the following "metacharacters": `*`, `**`, `?` and `[...]`.
985
986Here are some examples of how they work:
987
988| **Pattern** | **Description** |
989| --- | --- |
990| `*` | Matches any string except for `/`, leading `.`, or `/.` inside a path |
991| `**` | Matches any string including `/`, but not a leading `.` or `/.` inside a path. More than two stars (e.g. `***` is treated the same as one star, and `**` loses its special meaning | when it's not the only thing in a path segment, per Bash specifications) |
992| `foo*` | Matches any string beginning with `foo` |
993| `*bar*` | Matches any string containing `bar` (beginning, middle or end) |
994| `*.min.js` | Matches any string ending with `.min.js` |
995| `[abc]*.js` | Matches any string beginning with `a`, `b`, or `c` and ending with `.js` |
996| `abc?` | Matches `abcd` or `abcz` but not `abcde` |
997
998The exceptions noted for `*` apply to all patterns that contain a `*`.
999
1000**Not supported**
1001
1002The following extended-globbing features are not supported:
1003
1004* [brace expansion](https://github.com/jonschlinkert/braces) (e.g. `{a,b,c}`)
1005* [extglobs](https://github.com/jonschlinkert/extglob) (e.g. `@(a|!(c|d))`)
1006* [POSIX brackets](https://github.com/jonschlinkert/expand-brackets) (e.g. `[[:alpha:][:digit:]]`)
1007
1008If you need any of these features consider using [micromatch](https://github.com/micromatch/micromatch) instead.
1009
1010## Bash expansion libs
1011
1012Nanomatch is part of a suite of libraries aimed at bringing the power and expressiveness of [Bash's](https://www.gnu.org/software/bash/) matching and expansion capabilities to JavaScript, _and - as you can see by the [benchmarks](#benchmarks) - without sacrificing speed_.
1013
1014| **Related library** | **Matching Type** | **Example** | **Description** |
1015| --- | --- | --- | --- |
1016| `nanomatch` (you are here) | Wildcards | `*` | [Filename expansion](https://www.gnu.org/software/bash/manual/html_node/Filename-Expansion.html#Filename-Expansion), also referred to as globbing and pathname expansion, allows the use of [wildcards](#features) for matching. |
1017| [expand-tilde](https://github.com/jonschlinkert/expand-tilde) | Tildes | `~` | [Tilde expansion](https://www.gnu.org/software/bash/manual/html_node/Tilde-Expansion.html#Tilde-Expansion) converts the leading tilde in a file path to the user home directory. |
1018| [braces](https://github.com/jonschlinkert/braces) | Braces | `{a,b,c}` | [Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html) |
1019| [expand-brackets](https://github.com/jonschlinkert/expand-brackets) | Brackets | `[[:alpha:]]` | [POSIX character classes](https://www.gnu.org/software/grep/manual/html_node/Character-Classes-and-Bracket-Expressions.html) (also referred to as POSIX brackets, or POSIX character classes) |
1020| [extglob](https://github.com/jonschlinkert/extglob) | Parens | `!(a\ | b)` | [Extglobs](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html#Pattern-Matching) |
1021| [micromatch](https://github.com/micromatch/micromatch) | All | all | Micromatch is built on top of the other libraries. |
1022
1023There are many resources available on the web if you want to dive deeper into how these features work in Bash.
1024
1025## Benchmarks
1026
1027### Running benchmarks
1028
1029Install dev dependencies:
1030
1031```bash
1032npm i -d && node benchmark
1033```
1034
1035### Nanomatch vs. Minimatch vs. Multimatch
1036
1037```bash
1038# globstar-basic (182 bytes)
1039  minimatch x 69,512 ops/sec ±1.92% (88 runs sampled)
1040  multimatch x 63,376 ops/sec ±1.41% (89 runs sampled)
1041  nanomatch x 432,451 ops/sec ±0.92% (88 runs sampled)
1042
1043  fastest is nanomatch (by 651% avg)
1044
1045# large-list-globstar (485686 bytes)
1046  minimatch x 34.02 ops/sec ±1.42% (59 runs sampled)
1047  multimatch x 33.58 ops/sec ±1.97% (58 runs sampled)
1048  nanomatch x 483 ops/sec ±1.06% (86 runs sampled)
1049
1050  fastest is nanomatch (by 1429% avg)
1051
1052# long-list-globstar (194085 bytes)
1053  minimatch x 383 ops/sec ±0.74% (90 runs sampled)
1054  multimatch x 378 ops/sec ±0.59% (89 runs sampled)
1055  nanomatch x 990 ops/sec ±1.14% (85 runs sampled)
1056
1057  fastest is nanomatch (by 260% avg)
1058
1059# negation-basic (132 bytes)
1060  minimatch x 242,145 ops/sec ±1.17% (89 runs sampled)
1061  multimatch x 76,403 ops/sec ±0.78% (92 runs sampled)
1062  nanomatch x 537,253 ops/sec ±1.44% (86 runs sampled)
1063
1064  fastest is nanomatch (by 337% avg)
1065
1066# not-glob-basic (93 bytes)
1067  minimatch x 252,402 ops/sec ±1.33% (89 runs sampled)
1068  multimatch x 209,954 ops/sec ±1.30% (90 runs sampled)
1069  nanomatch x 1,716,468 ops/sec ±1.13% (86 runs sampled)
1070
1071  fastest is nanomatch (by 742% avg)
1072
1073# star-basic (93 bytes)
1074  minimatch x 182,780 ops/sec ±1.41% (91 runs sampled)
1075  multimatch x 153,210 ops/sec ±0.72% (89 runs sampled)
1076  nanomatch x 599,621 ops/sec ±1.22% (90 runs sampled)
1077
1078  fastest is nanomatch (by 357% avg)
1079
1080```
1081
1082## About
1083
1084<details>
1085<summary><strong>Contributing</strong></summary>
1086
1087Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
1088
1089Please read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.
1090
1091</details>
1092
1093<details>
1094<summary><strong>Running Tests</strong></summary>
1095
1096Running 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:
1097
1098```sh
1099$ npm install && npm test
1100```
1101
1102</details>
1103
1104<details>
1105<summary><strong>Building docs</strong></summary>
1106
1107_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
1108
1109To generate the readme, run the following command:
1110
1111```sh
1112$ npm install -g verbose/verb#dev verb-generate-readme && verb
1113```
1114
1115</details>
1116
1117### Related projects
1118
1119You might also be interested in these projects:
1120
1121* [extglob](https://www.npmjs.com/package/extglob): Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob… [more](https://github.com/micromatch/extglob) | [homepage](https://github.com/micromatch/extglob "Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.")
1122* [is-extglob](https://www.npmjs.com/package/is-extglob): Returns true if a string has an extglob. | [homepage](https://github.com/jonschlinkert/is-extglob "Returns true if a string has an extglob.")
1123* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet")
1124* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
1125
1126### Contributors
1127
1128| **Commits** | **Contributor** |
1129| --- | --- |
1130| 164 | [jonschlinkert](https://github.com/jonschlinkert) |
1131| 1 | [devongovett](https://github.com/devongovett) |
1132
1133### Author
1134
1135**Jon Schlinkert**
1136
1137* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)
1138* [github/jonschlinkert](https://github.com/jonschlinkert)
1139* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
1140
1141### License
1142
1143Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).
1144Released under the [MIT License](LICENSE).
1145
1146***
1147
1148_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 18, 2018._