1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
|
# 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)
> 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)
Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
## Table of Contents
<details>
<summary><strong>Details</strong></summary>
- [Install](#install)
- [What is nanomatch?](#what-is-nanomatch)
- [Getting started](#getting-started)
* [Installing nanomatch](#installing-nanomatch)
* [Usage](#usage)
- [Documentation](#documentation)
* [Escaping](#escaping)
- [API](#api)
- [Options](#options)
* [options.basename](#optionsbasename)
* [options.bash](#optionsbash)
* [options.cache](#optionscache)
* [options.dot](#optionsdot)
* [options.failglob](#optionsfailglob)
* [options.ignore](#optionsignore)
* [options.matchBase](#optionsmatchbase)
* [options.nocase](#optionsnocase)
* [options.nodupes](#optionsnodupes)
* [options.noglobstar](#optionsnoglobstar)
* [options.nonegate](#optionsnonegate)
* [options.nonull](#optionsnonull)
* [options.nullglob](#optionsnullglob)
* [options.snapdragon](#optionssnapdragon)
* [options.sourcemap](#optionssourcemap)
* [options.unescape](#optionsunescape)
* [options.unixify](#optionsunixify)
- [Features](#features)
- [Bash expansion libs](#bash-expansion-libs)
- [Benchmarks](#benchmarks)
* [Running benchmarks](#running-benchmarks)
* [Latest results](#latest-results)
- [About](#about)
</details>
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save nanomatch
```
<details>
<summary><strong>Release history</strong></summary>
## History
### key
Changelog entries are classified using the following labels _(from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog)_):
* `added`: for new features
* `changed`: for changes in existing functionality
* `deprecated`: for once-stable features removed in upcoming releases
* `removed`: for deprecated features removed in this release
* `fixed`: for any bug fixes
* `bumped`: updated dependencies, only minor or higher will be listed.
### [1.1.0](https://github.com/micromatch/nanomatch/compare/1.0.4...1.1.0) - 2017-04-11
**Fixed**
* adds support for unclosed quotes
**Added**
* adds support for `options.noglobstar`
### [1.0.4](https://github.com/micromatch/nanomatch/compare/1.0.3...1.0.4) - 2017-04-06
Housekeeping updates. Adds documentation section about escaping, cleans up utils.
### [1.0.3](https://github.com/micromatch/nanomatch/compare/1.0.1...1.0.3) - 2017-04-06
This release includes fixes for windows path edge cases and other improvements for stricter adherence to bash spec.
**Fixed**
* More windows path edge cases
**Added**
* 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.
### [1.0.1](https://github.com/micromatch/nanomatch/compare/1.0.0...1.0.1) - 2016-12-12
**Added**
* Support for windows path edge cases where backslashes are used in brackets or other unusual combinations.
### [1.0.0](https://github.com/micromatch/nanomatch/compare/0.1.0...1.0.0) - 2016-12-12
Stable release.
### [0.1.0] - 2016-10-08
First release.
</details>
## What is nanomatch?
Nanomatch is a fast and accurate glob matcher with full support for standard Bash glob features, including the following "metacharacters": `*`, `**`, `?` and `[...]`.
**Learn more**
* [Getting started](#getting-started): learn how to install and begin using nanomatch
* [Features](#features): jump to info about supported patterns, and a glob matching reference
* [API documentation](#api): jump to available options and methods
* [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!
<details>
<summary><strong>How is this different?</strong></summary>
**Speed and accuracy**
Nanomatch uses [snapdragon](https://github.com/jonschlinkert/snapdragon) for parsing and compiling globs, which results in:
* Granular control over the entire conversion process in a way that is easy to understand, reason about, and customize.
* Faster matching, from a combination of optimized glob patterns and (optional) caching.
* 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).
**Basic globbing only**
Nanomatch supports [basic globbing only](#features), which is limited to `*`, `**`, `?` and regex-like brackets.
If 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)_
</details>
## Getting started
### Installing nanomatch
**Install with [yarn](https://yarnpkg.com/)**
```sh
$ yarn add nanomatch
```
**Install with [npm](https://npmjs.com)**
```sh
$ npm install nanomatch
```
### Usage
Add nanomatch to your project using node's `require()` system:
```js
var nanomatch = require('nanomatch');
// the main export is a function that takes an array of strings to match
// and a string or array of patterns to use for matching
nanomatch(list, patterns[, options]);
```
**Params**
* `list` **{String|Array}**: List of strings to perform matches against. This is often a list of file paths.
* `patterns` **{String|Array}**: One or more [glob paterns](#features) to use for matching.
* `options` **{Object}**: Any [supported options](#options) may be passed
**Examples**
```js
var nm = require('nanomatch');
console.log(nm(['a', 'b/b', 'c/c/c'], '*'));
//=> ['a']
console.log(nm(['a', 'b/b', 'c/c/c'], '*/*'));
//=> ['b/b']
console.log(nm(['a', 'b/b', 'c/c/c'], '**'));
//=> ['a', 'b/b', 'c/c/c']
```
See the [API documentation](#api) for available methods and [options](https://github.com/einaros/options.js).
## Documentation
### Escaping
_Backslashes and quotes_ can be used to escape characters, forcing nanomatch to regard those characters as a literal characters.
**Backslashes**
Use backslashes to escape single characters. For example, the following pattern would match `foo/*/bar` exactly:
```js
'foo/\*/bar'
```
The following pattern would match `foo/` followed by a literal `*`, followed by zero or more of any characters besides `/`, followed by `/bar`.
```js
'foo/\**/bar'
```
**Quoted strings**
Use single or double quotes to escape sequences of characters. For example, the following patterns would match `foo/**/bar` exactly:
```js
'foo/"**"/bar'
'foo/\'**\'/bar'
"foo/'**'/bar"
```
**Matching literal quotes**
If 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`:
```js
'foo/\\"*\\"/bar'
```
And the following will match `foo/'*'/bar`, `foo/'a'/bar`, `foo/'b'/bar`, or `foo/'c'/bar`:
```js
'foo/\\\'*\\\'/bar'
```
## API
### [nanomatch](index.js#L40)
The main function takes a list of strings and one or more glob patterns to use for matching.
**Params**
* `list` **{Array}**: A list of strings to match
* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Array}**: Returns an array of matches
**Example**
```js
var nm = require('nanomatch');
nm(list, patterns[, options]);
console.log(nm(['a.js', 'a.txt'], ['*.js']));
//=> [ 'a.js' ]
```
### [.match](index.js#L106)
Similar to the main function, but `pattern` must be a string.
**Params**
* `list` **{Array}**: Array of strings to match
* `pattern` **{String}**: Glob pattern to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Array}**: Returns an array of matches
**Example**
```js
var nm = require('nanomatch');
nm.match(list, pattern[, options]);
console.log(nm.match(['a.a', 'a.aa', 'a.b', 'a.c'], '*.a'));
//=> ['a.a', 'a.aa']
```
### [.isMatch](index.js#L167)
Returns true if the specified `string` matches the given glob `pattern`.
**Params**
* `string` **{String}**: String to match
* `pattern` **{String}**: Glob pattern to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns true if the string matches the glob pattern.
**Example**
```js
var nm = require('nanomatch');
nm.isMatch(string, pattern[, options]);
console.log(nm.isMatch('a.a', '*.a'));
//=> true
console.log(nm.isMatch('a.b', '*.a'));
//=> false
```
### [.some](index.js#L205)
Returns true if some of the elements in the given `list` match any of the given glob `patterns`.
**Params**
* `list` **{String|Array}**: The string or array of strings to test. Returns as soon as the first match is found.
* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns true if any patterns match `str`
**Example**
```js
var nm = require('nanomatch');
nm.some(list, patterns[, options]);
console.log(nm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
// true
console.log(nm.some(['foo.js'], ['*.js', '!foo.js']));
// false
```
### [.every](index.js#L243)
Returns true if every element in the given `list` matches at least one of the given glob `patterns`.
**Params**
* `list` **{String|Array}**: The string or array of strings to test.
* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns true if any patterns match `str`
**Example**
```js
var nm = require('nanomatch');
nm.every(list, patterns[, options]);
console.log(nm.every('foo.js', ['foo.js']));
// true
console.log(nm.every(['foo.js', 'bar.js'], ['*.js']));
// true
console.log(nm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
// false
console.log(nm.every(['foo.js'], ['*.js', '!foo.js']));
// false
```
### [.any](index.js#L277)
Returns true if **any** of the given glob `patterns` match the specified `string`.
**Params**
* `str` **{String|Array}**: The string to test.
* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns true if any patterns match `str`
**Example**
```js
var nm = require('nanomatch');
nm.any(string, patterns[, options]);
console.log(nm.any('a.a', ['b.*', '*.a']));
//=> true
console.log(nm.any('a.a', 'b.*'));
//=> false
```
### [.all](index.js#L325)
Returns true if **all** of the given `patterns` match the specified string.
**Params**
* `str` **{String|Array}**: The string to test.
* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns true if any patterns match `str`
**Example**
```js
var nm = require('nanomatch');
nm.all(string, patterns[, options]);
console.log(nm.all('foo.js', ['foo.js']));
// true
console.log(nm.all('foo.js', ['*.js', '!foo.js']));
// false
console.log(nm.all('foo.js', ['*.js', 'foo.js']));
// true
console.log(nm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));
// true
```
### [.not](index.js#L359)
Returns a list of strings that _**do not match any**_ of the given `patterns`.
**Params**
* `list` **{Array}**: Array of strings to match.
* `patterns` **{String|Array}**: One or more glob pattern to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Array}**: Returns an array of strings that **do not match** the given patterns.
**Example**
```js
var nm = require('nanomatch');
nm.not(list, patterns[, options]);
console.log(nm.not(['a.a', 'b.b', 'c.c'], '*.a'));
//=> ['b.b', 'c.c']
```
### [.contains](index.js#L394)
Returns true if the given `string` contains the given pattern. Similar to [.isMatch](#isMatch) but the pattern can match any part of the string.
**Params**
* `str` **{String}**: The string to match.
* `patterns` **{String|Array}**: Glob pattern to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns true if the patter matches any part of `str`.
**Example**
```js
var nm = require('nanomatch');
nm.contains(string, pattern[, options]);
console.log(nm.contains('aa/bb/cc', '*b'));
//=> true
console.log(nm.contains('aa/bb/cc', '*d'));
//=> false
```
### [.matchKeys](index.js#L450)
Filter 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.
**Params**
* `object` **{Object}**: The object with keys to filter.
* `patterns` **{String|Array}**: One or more glob patterns to use for matching.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed
* `returns` **{Object}**: Returns an object with only keys that match the given patterns.
**Example**
```js
var nm = require('nanomatch');
nm.matchKeys(object, patterns[, options]);
var obj = { aa: 'a', ab: 'b', ac: 'c' };
console.log(nm.matchKeys(obj, '*b'));
//=> { ab: 'b' }
```
### [.matcher](index.js#L479)
Returns 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.
**Params**
* `pattern` **{String}**: Glob pattern
* `options` **{Object}**: See available [options](#options) for changing how matches are performed.
* `returns` **{Function}**: Returns a matcher function.
**Example**
```js
var nm = require('nanomatch');
nm.matcher(pattern[, options]);
var isMatch = nm.matcher('*.!(*a)');
console.log(isMatch('a.a'));
//=> false
console.log(isMatch('a.b'));
//=> true
```
### [.capture](index.js#L560)
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](#options) for changing how matches are performed
* `returns` **{Boolean}**: Returns an array of captures if the string matches the glob pattern, otherwise `null`.
**Example**
```js
var nm = require('nanomatch');
nm.capture(pattern, string[, options]);
console.log(nm.capture('test/*.js', 'test/foo.js'));
//=> ['foo']
console.log(nm.capture('test/*.js', 'foo/bar.css'));
//=> null
```
### [.makeRe](index.js#L595)
Create a regular expression from the given glob `pattern`.
**Params**
* `pattern` **{String}**: A glob pattern to convert to regex.
* `options` **{Object}**: See available [options](#options) for changing how matches are performed.
* `returns` **{RegExp}**: Returns a regex created from the given pattern.
**Example**
```js
var nm = require('nanomatch');
nm.makeRe(pattern[, options]);
console.log(nm.makeRe('*.js'));
//=> /^(?:(\.[\\\/])?(?!\.)(?=.)[^\/]*?\.js)$/
```
### [.create](index.js#L662)
Parses the given glob `pattern` and returns an object with the compiled `output` and optional source `map`.
**Params**
* `pattern` **{String}**: Glob pattern to parse and compile.
* `options` **{Object}**: Any [options](#options) to change how parsing and compiling is performed.
* `returns` **{Object}**: Returns an object with the parsed AST, compiled string and optional source map.
**Example**
```js
var nm = require('nanomatch');
nm.create(pattern[, options]);
console.log(nm.create('abc/*.js'));
// { options: { source: 'string', sourcemap: true },
// state: {},
// compilers:
// { ... },
// output: '(\\.[\\\\\\/])?abc\\/(?!\\.)(?=.)[^\\/]*?\\.js',
// ast:
// { type: 'root',
// errors: [],
// nodes:
// [ ... ],
// dot: false,
// input: 'abc/*.js' },
// parsingErrors: [],
// map:
// { version: 3,
// sources: [ 'string' ],
// names: [],
// mappings: 'AAAA,GAAG,EAAC,kBAAC,EAAC,EAAE',
// sourcesContent: [ 'abc/*.js' ] },
// position: { line: 1, column: 28 },
// content: {},
// files: {},
// idx: 6 }
```
### [.parse](index.js#L701)
Parse the given `str` with the given `options`.
**Params**
* `str` **{String}**
* `options` **{Object}**
* `returns` **{Object}**: Returns an AST
**Example**
```js
var nm = require('nanomatch');
nm.parse(pattern[, options]);
var ast = nm.parse('a/{b,c}/d');
console.log(ast);
// { type: 'root',
// errors: [],
// input: 'a/{b,c}/d',
// nodes:
// [ { type: 'bos', val: '' },
// { type: 'text', val: 'a/' },
// { type: 'brace',
// nodes:
// [ { type: 'brace.open', val: '{' },
// { type: 'text', val: 'b,c' },
// { type: 'brace.close', val: '}' } ] },
// { type: 'text', val: '/d' },
// { type: 'eos', val: '' } ] }
```
### [.compile](index.js#L749)
Compile the given `ast` or string with the given `options`.
**Params**
* `ast` **{Object|String}**
* `options` **{Object}**
* `returns` **{Object}**: Returns an object that has an `output` property with the compiled string.
**Example**
```js
var nm = require('nanomatch');
nm.compile(ast[, options]);
var ast = nm.parse('a/{b,c}/d');
console.log(nm.compile(ast));
// { options: { source: 'string' },
// state: {},
// compilers:
// { eos: [Function],
// noop: [Function],
// bos: [Function],
// brace: [Function],
// 'brace.open': [Function],
// text: [Function],
// 'brace.close': [Function] },
// output: [ 'a/(b|c)/d' ],
// ast:
// { ... },
// parsingErrors: [] }
```
### [.clearCache](index.js#L772)
Clear the regex cache.
**Example**
```js
nm.clearCache();
```
## Options
<details>
<summary><strong>basename</strong></summary>
### options.basename
Allow glob patterns without slashes to match a file path based on its basename. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `matchBase`.
Type: `Boolean`
Default: `false`
**Example**
```js
nm(['a/b.js', 'a/c.md'], '*.js');
//=> []
nm(['a/b.js', 'a/c.md'], '*.js', {matchBase: true});
//=> ['a/b.js']
```
</details>
<details>
<summary><strong>bash</strong></summary>
### options.bash
Enabled 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.
Type: `Boolean`
Default: `true`
**Example**
```js
var files = ['abc', 'ajz'];
console.log(nm(files, '[a-c]*'));
//=> ['abc', 'ajz']
console.log(nm(files, '[a-c]*', {bash: false}));
```
</details>
<details>
<summary><strong>cache</strong></summary>
### options.cache
Disable regex and function memoization.
Type: `Boolean`
Default: `undefined`
</details>
<details>
<summary><strong>dot</strong></summary>
### options.dot
Match dotfiles. Same behavior as [minimatch](https://github.com/isaacs/minimatch) option `dot`.
Type: `Boolean`
Default: `false`
</details>
<details>
<summary><strong>failglob</strong></summary>
### options.failglob
Similar to the `--failglob` behavior in Bash, throws an error when no matches are found.
Type: `Boolean`
Default: `undefined`
</details>
<details>
<summary><strong>ignore</strong></summary>
### options.ignore
String or array of glob patterns to match files to ignore.
Type: `String|Array`
Default: `undefined`
</details>
<details>
<summary><strong>matchBase</strong></summary>
### options.matchBase
Alias for [options.basename](#options-basename).
</details>
<details>
<summary><strong>nocase</strong></summary>
### options.nocase
Use a case-insensitive regex for matching files. Same behavior as [minimatch](https://github.com/isaacs/minimatch).
Type: `Boolean`
Default: `undefined`
</details>
<details>
<summary><strong>nodupes</strong></summary>
### options.nodupes
Remove duplicate elements from the result array.
Type: `Boolean`
Default: `true` (enabled by default)
**Example**
Example of using the `unescape` and `nodupes` options together:
```js
nm.match(['a/b/c', 'a/b/c'], '**');
//=> ['abc']
nm.match(['a/b/c', 'a/b/c'], '**', {nodupes: false});
//=> ['a/b/c', 'a/b/c']
```
</details>
<details>
<summary><strong>nonegate</strong></summary>
### options.noglobstar
Disable matching with globstars (`**`).
Type: `Boolean`
Default: `undefined`
```js
nm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**');
//=> ['a/b', 'a/b/c', 'a/b/c/d']
nm(['a/b', 'a/b/c', 'a/b/c/d'], 'a/**', {noglobstar: true});
//=> ['a/b']
```
</details>
<details>
<summary><strong>nonegate</strong></summary>
### options.nonegate
Disallow negation (`!`) patterns, and treat leading `!` as a literal character to match.
Type: `Boolean`
Default: `undefined`
</details>
<details>
<summary><strong>nonull</strong></summary>
### options.nonull
Alias for [options.nullglob](#options-nullglob).
</details>
<details>
<summary><strong>nullglob</strong></summary>
### options.nullglob
If `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`.
Type: `Boolean`
Default: `undefined`
</details>
<details>
<summary><strong>snapdragon</strong></summary>
### options.snapdragon
Pass your own instance of [snapdragon](https://github.com/jonschlinkert/snapdragon) to customize parsers or compilers.
Type: `Object`
Default: `undefined`
</details>
<details>
<summary><strong>snapdragon</strong></summary>
### options.sourcemap
Generate a source map by enabling the `sourcemap` option with the `.parse`, `.compile`, or `.create` methods.
**Examples**
```js
var nm = require('nanomatch');
var res = nm.create('abc/*.js', {sourcemap: true});
console.log(res.map);
// { version: 3,
// sources: [ 'string' ],
// names: [],
// mappings: 'AAAA,GAAG,EAAC,iBAAC,EAAC,EAAE',
// sourcesContent: [ 'abc/*.js' ] }
var ast = nm.parse('abc/**/*.js');
var res = nm.compile(ast, {sourcemap: true});
console.log(res.map);
// { version: 3,
// sources: [ 'string' ],
// names: [],
// mappings: 'AAAA,GAAG,EAAC,2BAAE,EAAC,iBAAC,EAAC,EAAE',
// sourcesContent: [ 'abc/**/*.js' ] }
```
</details>
<details>
<summary><strong>unescape</strong></summary>
### options.unescape
Remove backslashes from returned matches.
Type: `Boolean`
Default: `undefined`
**Example**
In this example we want to match a literal `*`:
```js
nm.match(['abc', 'a\\*c'], 'a\\*c');
//=> ['a\\*c']
nm.match(['abc', 'a\\*c'], 'a\\*c', {unescape: true});
//=> ['a*c']
```
</details>
<details>
<summary><strong>unixify</strong></summary>
### options.unixify
Convert path separators on returned files to posix/unix-style forward slashes.
Type: `Boolean`
Default: `true`
**Example**
```js
nm.match(['a\\b\\c'], 'a/**');
//=> ['a/b/c']
nm.match(['a\\b\\c'], {unixify: false});
//=> ['a\\b\\c']
```
</details>
## Features
Nanomatch has full support for standard Bash glob features, including the following "metacharacters": `*`, `**`, `?` and `[...]`.
Here are some examples of how they work:
| **Pattern** | **Description** |
| --- | --- |
| `*` | Matches any string except for `/`, leading `.`, or `/.` inside a path |
| `**` | 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) |
| `foo*` | Matches any string beginning with `foo` |
| `*bar*` | Matches any string containing `bar` (beginning, middle or end) |
| `*.min.js` | Matches any string ending with `.min.js` |
| `[abc]*.js` | Matches any string beginning with `a`, `b`, or `c` and ending with `.js` |
| `abc?` | Matches `abcd` or `abcz` but not `abcde` |
The exceptions noted for `*` apply to all patterns that contain a `*`.
**Not supported**
The following extended-globbing features are not supported:
* [brace expansion](https://github.com/jonschlinkert/braces) (e.g. `{a,b,c}`)
* [extglobs](https://github.com/jonschlinkert/extglob) (e.g. `@(a|!(c|d))`)
* [POSIX brackets](https://github.com/jonschlinkert/expand-brackets) (e.g. `[[:alpha:][:digit:]]`)
If you need any of these features consider using [micromatch](https://github.com/micromatch/micromatch) instead.
## Bash expansion libs
Nanomatch 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_.
| **Related library** | **Matching Type** | **Example** | **Description** |
| --- | --- | --- | --- |
| `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. |
| [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. |
| [braces](https://github.com/jonschlinkert/braces) | Braces | `{a,b,c}` | [Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html) |
| [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) |
| [extglob](https://github.com/jonschlinkert/extglob) | Parens | `!(a\ | b)` | [Extglobs](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html#Pattern-Matching) |
| [micromatch](https://github.com/micromatch/micromatch) | All | all | Micromatch is built on top of the other libraries. |
There are many resources available on the web if you want to dive deeper into how these features work in Bash.
## Benchmarks
### Running benchmarks
Install dev dependencies:
```bash
npm i -d && node benchmark
```
### Latest results
```bash
# globstar-basic (182 bytes)
minimatch x 70,508 ops/sec ±0.44% (92 runs sampled)
multimatch x 63,220 ops/sec ±0.76% (94 runs sampled)
nanomatch x 377,146 ops/sec ±0.45% (89 runs sampled)
fastest is nanomatch (by 564% avg)
# large-list-globstar (485686 bytes)
minimatch x 35.67 ops/sec ±0.47% (61 runs sampled)
multimatch x 34.80 ops/sec ±1.77% (60 runs sampled)
nanomatch x 509 ops/sec ±0.43% (90 runs sampled)
fastest is nanomatch (by 1445% avg)
# long-list-globstar (194085 bytes)
minimatch x 397 ops/sec ±0.96% (89 runs sampled)
multimatch x 400 ops/sec ±0.32% (90 runs sampled)
nanomatch x 843 ops/sec ±0.40% (92 runs sampled)
fastest is nanomatch (by 212% avg)
# negation-basic (132 bytes)
minimatch x 224,342 ops/sec ±1.07% (90 runs sampled)
multimatch x 68,071 ops/sec ±0.80% (89 runs sampled)
nanomatch x 442,204 ops/sec ±1.09% (91 runs sampled)
fastest is nanomatch (by 302% avg)
# not-glob-basic (93 bytes)
minimatch x 222,156 ops/sec ±0.98% (89 runs sampled)
multimatch x 179,724 ops/sec ±1.04% (91 runs sampled)
nanomatch x 1,446,098 ops/sec ±0.45% (92 runs sampled)
fastest is nanomatch (by 720% avg)
# star-basic (93 bytes)
minimatch x 165,049 ops/sec ±1.22% (91 runs sampled)
multimatch x 132,553 ops/sec ±0.57% (90 runs sampled)
nanomatch x 522,080 ops/sec ±1.20% (92 runs sampled)
fastest is nanomatch (by 351% avg)
```
## About
<details>
<summary><strong>Contributing</strong></summary>
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
Please read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.
</details>
<details>
<summary><strong>Running Tests</strong></summary>
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:
```sh
$ npm install && npm test
```
</details>
<details>
<summary><strong>Building docs</strong></summary>
_(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.)_
To generate the readme, run the following command:
```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```
</details>
### Related projects
You might also be interested in these projects:
* [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.")
* [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.")
* [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")
* [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.")
### Contributors
| **Commits** | **Contributor** |
| --- | --- |
| 144 | [jonschlinkert](https://github.com/jonschlinkert) |
| 1 | [devongovett](https://github.com/devongovett) |
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
### License
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on October 20, 2017._
|