nanomatch

Last updated 3 years ago

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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, , and consider starring the project to show your and support.

Details

Install

Install with :

$ npm install --save nanomatch

Release history

History

key

Changelog entries are classified using the following labels (from ):

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.

- 2017-04-11

Fixed

adds support for unclosed quotes

Added

adds support for options.noglobstar

- 2017-04-06

Housekeeping updates. Adds documentation section about escaping, cleans up utils.

- 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.

- 2016-12-12

Added

Support for windows path edge cases where backslashes are used in brackets or other unusual combinations.

- 2016-12-12

Stable release.

[0.1.0] - 2016-10-08

First release.

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

How is this different?

Speed and accuracy

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.

Basic globbing only

Getting started

Installing nanomatch

$ yarn add nanomatch

$ npm install nanomatch

Usage

Add nanomatch to your project using node's require() system:

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.

Examples

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']

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:

'foo/\*/bar'

The following pattern would match foo/ followed by a literal *, followed by zero or more of any characters besides /, followed by /bar.

'foo/\**/bar'

Quoted strings

Use single or double quotes to escape sequences of characters. For example, the following patterns would match foo/**/bar exactly:

'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:

'foo/\\"*\\"/bar'

And the following will match foo/'*'/bar, foo/'a'/bar, foo/'b'/bar, or foo/'c'/bar:

'foo/\\\'*\\\'/bar'

API

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.
returns {Array}: Returns an array of matches

Example

var nm = require('nanomatch');
nm(list, patterns[, options]);

console.log(nm(['a.js', 'a.txt'], ['*.js']));
//=> [ 'a.js' ]

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.
returns {Array}: Returns an array of matches

Example

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']

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.
returns {Boolean}: Returns true if the string matches the glob pattern.

Example

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

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.
returns {Boolean}: Returns true if any patterns match str

Example

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

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.
returns {Boolean}: Returns true if any patterns match str

Example

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

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.
returns {Boolean}: Returns true if any patterns match str

Example

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

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.
returns {Boolean}: Returns true if any patterns match str

Example

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

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.
returns {Array}: Returns an array of strings that do not match the given patterns.

Example

var nm = require('nanomatch');
nm.not(list, patterns[, options]);

console.log(nm.not(['a.a', 'b.b', 'c.c'], '*.a'));
//=> ['b.b', 'c.c']

Params

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

Example

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

Params

object {Object}: The object with keys to filter.
patterns {String|Array}: One or more glob patterns to use for matching.
returns {Object}: Returns an object with only keys that match the given patterns.

Example

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' }

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
returns {Function}: Returns a matcher function.

Example

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

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

Params

pattern {String}: Glob pattern to use for matching.
string {String}: String to match
returns {Boolean}: Returns an array of captures if the string matches the glob pattern, otherwise null.

Example

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

Create a regular expression from the given glob pattern.

Params

pattern {String}: A glob pattern to convert to regex.
returns {RegExp}: Returns a regex created from the given pattern.

Example

var nm = require('nanomatch');
nm.makeRe(pattern[, options]);

console.log(nm.makeRe('*.js'));
//=> /^(?:(\.[\\\/])?(?!\.)(?=.)[^\/]*?\.js)$/

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.
returns {Object}: Returns an object with the parsed AST, compiled string and optional source map.

Example

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 the given str with the given options.

Params

str {String}
options {Object}
returns {Object}: Returns an AST

Example

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 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

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: [] }

Clear the regex cache.

Example

nm.clearCache();

Options

basename

options.basename

Type: boolean

Default: false

Example

nm(['a/b.js', 'a/c.md'], '*.js');
//=> []

nm(['a/b.js', 'a/c.md'], '*.js', {matchBase: true});
//=> ['a/b.js']

bash

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

var files = ['abc', 'ajz'];
console.log(nm(files, '[a-c]*'));
//=> ['abc', 'ajz']

console.log(nm(files, '[a-c]*', {bash: false}));

cache

options.cache

Disable regex and function memoization.

Type: boolean

Default: undefined

dot

options.dot

Type: boolean

Default: false

failglob

options.failglob

Similar to the --failglob behavior in Bash, throws an error when no matches are found.

Type: boolean

Default: undefined

ignore

options.ignore

String or array of glob patterns to match files to ignore.

Type: String|Array

Default: undefined

matchBase

options.matchBase

nocase

options.nocase

Type: boolean

Default: undefined

nodupes

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:

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']

nonegate

options.noglobstar

Disable matching with globstars (**).

Type: boolean

Default: undefined

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']

nonegate

options.nonegate

Disallow negation (!) patterns, and treat leading ! as a literal character to match.

Type: boolean

Default: undefined

nonull

options.nonull

nullglob

options.nullglob

Type: boolean

Default: undefined

slash

options.slash

Customize the slash character(s) to use for matching.

Type: string|function

Default: [/\\] (forward slash and backslash)

star

options.star

Customize 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.

Type: string|function

Default: [^/\\]*?

snapdragon

options.snapdragon

Type: object

Default: undefined

snapdragon

options.sourcemap

Generate a source map by enabling the sourcemap option with the .parse, .compile, or .create methods.

Examples

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' ] }

unescape

options.unescape

Remove backslashes from returned matches.

Type: boolean

Default: undefined

Example

In this example we want to match a literal *:

nm.match(['abc', 'a\\*c'], 'a\\*c');
//=> ['a\\*c']

nm.match(['abc', 'a\\*c'], 'a\\*c', {unescape: true});
//=> ['a*c']

unixify

options.unixify

Convert path separators on returned files to posix/unix-style forward slashes.

Type: boolean

Default: true

Example

nm.match(['a\\b\\c'], 'a/**');
//=> ['a/b/c']

nm.match(['a\\b\\c'], {unixify: false});
//=> ['a\\b\\c']

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

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:

Bash expansion libs

Related library

Matching Type

Example

Description

nanomatch (you are here)

Wildcards

*

Tildes

~

Braces

{a,b,c}

Brackets

[[:alpha:]]

Parens

`!(a\

b)`

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:

npm i -d && node benchmark

Nanomatch vs. Minimatch vs. Multimatch

# globstar-basic (182 bytes)
  minimatch x 69,512 ops/sec ±1.92% (88 runs sampled)
  multimatch x 63,376 ops/sec ±1.41% (89 runs sampled)
  nanomatch x 432,451 ops/sec ±0.92% (88 runs sampled)

  fastest is nanomatch (by 651% avg)

# large-list-globstar (485686 bytes)
  minimatch x 34.02 ops/sec ±1.42% (59 runs sampled)
  multimatch x 33.58 ops/sec ±1.97% (58 runs sampled)
  nanomatch x 483 ops/sec ±1.06% (86 runs sampled)

  fastest is nanomatch (by 1429% avg)

# long-list-globstar (194085 bytes)
  minimatch x 383 ops/sec ±0.74% (90 runs sampled)
  multimatch x 378 ops/sec ±0.59% (89 runs sampled)
  nanomatch x 990 ops/sec ±1.14% (85 runs sampled)

  fastest is nanomatch (by 260% avg)

# negation-basic (132 bytes)
  minimatch x 242,145 ops/sec ±1.17% (89 runs sampled)
  multimatch x 76,403 ops/sec ±0.78% (92 runs sampled)
  nanomatch x 537,253 ops/sec ±1.44% (86 runs sampled)

  fastest is nanomatch (by 337% avg)

# not-glob-basic (93 bytes)
  minimatch x 252,402 ops/sec ±1.33% (89 runs sampled)
  multimatch x 209,954 ops/sec ±1.30% (90 runs sampled)
  nanomatch x 1,716,468 ops/sec ±1.13% (86 runs sampled)

  fastest is nanomatch (by 742% avg)

# star-basic (93 bytes)
  minimatch x 182,780 ops/sec ±1.41% (91 runs sampled)
  multimatch x 153,210 ops/sec ±0.72% (89 runs sampled)
  nanomatch x 599,621 ops/sec ±1.22% (90 runs sampled)

  fastest is nanomatch (by 357% avg)

About

Contributing

Running Tests

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

Building docs

To generate the readme, run the following command:

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

You might also be interested in these projects:

Contributors

Commits

Contributor

164

Author

Jon Schlinkert

License

Previousmute-stream Nextnode_modules

Last updated 3 years ago

Was this helpful?

Table of Contents

Install

History

key

- 2017-04-11

- 2017-04-06

- 2017-04-06

- 2016-12-12

- 2016-12-12

[0.1.0] - 2016-10-08

What is nanomatch?

Getting started

Installing nanomatch

Usage

Documentation

Escaping

API

Options

options.basename

options.bash

options.cache

options.dot

options.failglob

options.ignore

options.matchBase

options.nocase

options.nodupes

options.noglobstar

options.nonegate

options.nonull

options.nullglob

options.slash

options.star

options.snapdragon

options.sourcemap

options.unescape

options.unixify

Features

Bash expansion libs

Benchmarks

Running benchmarks

Nanomatch vs. Minimatch vs. Multimatch

About

Related projects

Contributors

Author

License

Table of Contents

Install

History

key

- 2017-04-11

- 2017-04-06

- 2017-04-06

- 2016-12-12

- 2016-12-12

[0.1.0] - 2016-10-08

What is nanomatch?

Getting started

Installing nanomatch

Usage

Documentation

Escaping

API

Options

options.basename

options.bash

options.cache

options.dot

options.failglob

options.ignore

options.matchBase

options.nocase

options.nodupes

options.noglobstar

options.nonegate

options.nonull

options.nullglob

options.slash

options.star