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node_modules/posix-character-classes/README.md

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+# posix-character-classes [![NPM version](https://img.shields.io/npm/v/posix-character-classes.svg?style=flat)](https://www.npmjs.com/package/posix-character-classes) [![NPM monthly downloads](https://img.shields.io/npm/dm/posix-character-classes.svg?style=flat)](https://npmjs.org/package/posix-character-classes)  [![NPM total downloads](https://img.shields.io/npm/dt/posix-character-classes.svg?style=flat)](https://npmjs.org/package/posix-character-classes) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/posix-character-classes.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/posix-character-classes)
+
+> POSIX character classes for creating regular expressions.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save posix-character-classes
+```
+
+Install with [yarn](https://yarnpkg.com):
+
+```sh
+$ yarn add posix-character-classes
+```
+
+## Usage
+
+```js
+var posix = require('posix-character-classes');
+console.log(posix.alpha);
+//=> 'A-Za-z'
+```
+
+## POSIX Character classes
+
+The POSIX standard supports the following classes or categories of charactersh (note that classes must be defined within brackets)<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>:
+
+| **POSIX class** | **Equivalent to** | **Matches** | 
+| --- | --- | --- |
+| `[:alnum:]` | `[A-Za-z0-9]` | digits, uppercase and lowercase letters |
+| `[:alpha:]` | `[A-Za-z]` | upper- and lowercase letters |
+| `[:ascii:]` | `[\x00-\x7F]` | ASCII characters |
+| `[:blank:]` | `[ \t]` | space and TAB characters only |
+| `[:cntrl:]` | `[\x00-\x1F\x7F]` | Control characters |
+| `[:digit:]` | `[0-9]` | digits |
+| `[:graph:]` | `[^[:cntrl:]]` | graphic characters (all characters which have graphic representation) |
+| `[:lower:]` | `[a-z]` | lowercase letters |
+| `[:print:]` | `[[:graph] ]` | graphic characters and space |
+| `[:punct:]` | ``[-!"#$%&'()*+,./:;<=>?@[]^_`{ | }~]`` | all punctuation characters (all graphic characters except letters and digits) |
+| `[:space:]` | `[ \t\n\r\f\v]` | all blank (whitespace) characters, including spaces, tabs, new lines, carriage returns, form feeds, and vertical tabs |
+| `[:upper:]` | `[A-Z]` | uppercase letters |
+| `[:word:]` | `[A-Za-z0-9_]` | word characters |
+| `[:xdigit:]` | `[0-9A-Fa-f]` | hexadecimal digits |
+
+## Examples
+
+* `a[[:digit:]]b` matches `a0b`, `a1b`, ..., `a9b`.
+* `a[:digit:]b` is invalid, character classes must be enclosed in brackets
+* `[[:digit:]abc]` matches any digit, as well as `a`, `b`, and `c`.
+* `[abc[:digit:]]` is the same as the previous, matching any digit, as well as `a`, `b`, and `c`
+* `[^ABZ[:lower:]]` matches any character except lowercase letters, `A`, `B`, and `Z`.
+
+## About
+
+### Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+### Building docs
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+### 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:
+
+```sh
+$ npm install && npm test
+```
+
+### 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), v0.5.0, on April 20, 2017._
+
+<hr class="footnotes-sep">
+<section class="footnotes">
+<ol class="footnotes-list">
+<li id="fn1"  class="footnote-item">table and examples are based on the WikiBooks page for [Regular Expressions/POSIX Basic Regular Expressions](https://en.wikibooks.org/wiki/Regular_Expressions/POSIX_Basic_Regular_Expressions), which is available under the [Creative Commons Attribution-ShareAlike License](https://creativecommons.org/licenses/by-sa/3.0/). <a href="#fnref1" class="footnote-backref">↩</a>
+
+</li>
+</ol>
+</section>