mirror of https://github.com/jkjoy/sunpeiwen.git
88 lines
3.1 KiB
Markdown
88 lines
3.1 KiB
Markdown
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# is-posix-bracket [](https://www.npmjs.com/package/is-posix-bracket) [](https://npmjs.org/package/is-posix-bracket) [](https://travis-ci.org/jonschlinkert/is-posix-bracket)
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> Returns true if the given string is a POSIX bracket expression (POSIX character class).
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## Install
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Install with [npm](https://www.npmjs.com/):
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```sh
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$ npm install is-posix-bracket --save
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```
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## Usage
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```js
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var isPosixBracket = require('is-posix-bracket');
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isPosixBracket('[foo:]]');
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//=> false
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isPosixBracket('[xdigit:]]');
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//=> false
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isPosixBracket('[[:xdigit:]]');
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//=> true
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isPosixBracket('[[:xdigit:]]');
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//=> true
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isPosixBracket('[[:alpha:]123]');
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//=> true
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isPosixBracket('[[:alpha:]123]');
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//=> true
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isPosixBracket('[a-c[:digit:]x-z]');
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//=> true
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isPosixBracket('[:al:]');
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//=> true
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isPosixBracket('[abc[:punct:][0-9]');
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//=> true
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```
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## Related projects
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You might also be interested in these projects:
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* [braces](https://www.npmjs.com/package/braces): Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces… [more](https://www.npmjs.com/package/braces) | [homepage](https://github.com/jonschlinkert/braces)
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* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets)
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* [is-extglob](https://www.npmjs.com/package/is-extglob): Returns true if a string has an extglob. | [homepage](https://github.com/jonschlinkert/is-extglob)
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* [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://www.npmjs.com/package/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob)
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* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. Just… [more](https://www.npmjs.com/package/micromatch) | [homepage](https://github.com/jonschlinkert/micromatch)
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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/is-posix-bracket/issues/new).
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## Building docs
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Generate readme and API documentation with [verb](https://github.com/verbose/verb):
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```sh
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$ npm install verb && npm run docs
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```
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Or, if [verb](https://github.com/verbose/verb) is installed globally:
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```sh
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$ verb
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```
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## Running tests
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Install dev dependencies:
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```sh
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$ npm install -d && npm test
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```
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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 © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT license](https://github.com/jonschlinkert/is-posix-bracket/blob/master/LICENSE).
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***
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_This file was generated by [verb](https://github.com/verbose/verb), v, on April 05, 2016._
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