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88 lines
3.2 KiB
Markdown
88 lines
3.2 KiB
Markdown
5 years ago
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# extglob [](http://badge.fury.io/js/extglob) [](https://travis-ci.org/jonschlinkert/extglob)
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> Convert extended globs to regex-compatible strings. Add (almost) the expressive power of regular expressions to glob patterns.
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Install with [npm](https://www.npmjs.com/)
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```sh
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$ npm i extglob --save
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```
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Used by [micromatch](https://github.com/jonschlinkert/micromatch).
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**Features**
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* Convert an extglob string to a regex-compatible string. **Only converts extglobs**, to handle full globs use [micromatch](https://github.com/jonschlinkert/micromatch).
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* Pass `{regex: true}` to return a regex
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* Handles nested patterns
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* More complete (and correct) support than [minimatch](https://github.com/isaacs/minimatch)
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## Usage
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```js
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var extglob = require('extglob');
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extglob('?(z)');
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//=> '(?:z)?'
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extglob('*(z)');
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//=> '(?:z)*'
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extglob('+(z)');
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//=> '(?:z)+'
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extglob('@(z)');
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//=> '(?:z)'
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extglob('!(z)');
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//=> '(?!^(?:(?!z)[^/]*?)).*$'
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```
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**Optionally return regex**
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```js
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extglob('!(z)', {regex: true});
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//=> /(?!^(?:(?!z)[^/]*?)).*$/
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```
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## Extglob patterns
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To learn more about how extglobs work, see the docs for [Bash pattern matching](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html):
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* `?(pattern)`: Match zero or one occurrence of the given pattern.
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* `*(pattern)`: Match zero or more occurrences of the given pattern.
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* `+(pattern)`: Match one or more occurrences of the given pattern.
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* `@(pattern)`: Match one of the given pattern.
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* `!(pattern)`: Match anything except one of the given pattern.
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## Related
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* [braces](https://github.com/jonschlinkert/braces): Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces)
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* [expand-brackets](https://github.com/jonschlinkert/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns.
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* [expand-range](https://github.com/jonschlinkert/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://github.com/jonschlinkert/expand-range)
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* [fill-range](https://github.com/jonschlinkert/fill-range): Fill in a range of numbers or letters, optionally passing an increment or multiplier to… [more](https://github.com/jonschlinkert/fill-range)
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* [micromatch](https://github.com/jonschlinkert/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. Just… [more](https://github.com/jonschlinkert/micromatch)
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## Run tests
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Install dev dependencies:
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```sh
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$ npm i -d && npm test
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```
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## Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/extglob/issues/new)
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## Author
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**Jon Schlinkert**
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+ [github/jonschlinkert](https://github.com/jonschlinkert)
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+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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## License
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Copyright © 2015 Jon Schlinkert
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Released under the MIT license.
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***
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_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 01, 2015._
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