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- # split-string [![NPM version](https://img.shields.io/npm/v/split-string.svg?style=flat)](https://www.npmjs.com/package/split-string) [![NPM monthly downloads](https://img.shields.io/npm/dm/split-string.svg?style=flat)](https://npmjs.org/package/split-string) [![NPM total downloads](https://img.shields.io/npm/dt/split-string.svg?style=flat)](https://npmjs.org/package/split-string) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/split-string.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/split-string)
-
- > Split a string on a character except when the character is escaped.
-
- Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
-
- ## Install
-
- Install with [npm](https://www.npmjs.com/):
-
- ```sh
- $ npm install --save split-string
- ```
-
- <!-- section: Why use this? -->
-
- <details>
- <summary><strong>Why use this?</strong></summary>
-
- <br>
-
- Although it's easy to split on a string:
-
- ```js
- console.log('a.b.c'.split('.'));
- //=> ['a', 'b', 'c']
- ```
-
- It's more challenging to split a string whilst respecting escaped or quoted characters.
-
- **Bad**
-
- ```js
- console.log('a\\.b.c'.split('.'));
- //=> ['a\\', 'b', 'c']
-
- console.log('"a.b.c".d'.split('.'));
- //=> ['"a', 'b', 'c"', 'd']
- ```
-
- **Good**
-
- ```js
- var split = require('split-string');
- console.log(split('a\\.b.c'));
- //=> ['a.b', 'c']
-
- console.log(split('"a.b.c".d'));
- //=> ['a.b.c', 'd']
- ```
-
- See the [options](#options) to learn how to choose the separator or retain quotes or escaping.
-
- <br>
-
- </details>
-
- ## Usage
-
- ```js
- var split = require('split-string');
-
- split('a.b.c');
- //=> ['a', 'b', 'c']
-
- // respects escaped characters
- split('a.b.c\\.d');
- //=> ['a', 'b', 'c.d']
-
- // respects double-quoted strings
- split('a."b.c.d".e');
- //=> ['a', 'b.c.d', 'e']
- ```
-
- **Brackets**
-
- Also respects brackets [unless disabled](#optionsbrackets):
-
- ```js
- split('a (b c d) e', ' ');
- //=> ['a', '(b c d)', 'e']
- ```
-
- ## Options
-
- ### options.brackets
-
- **Type**: `object|boolean`
-
- **Default**: `undefined`
-
- **Description**
-
- If enabled, split-string will not split inside brackets. The following brackets types are supported when `options.brackets` is `true`,
-
- ```js
- {
- '<': '>',
- '(': ')',
- '[': ']',
- '{': '}'
- }
- ```
-
- Or, if object of brackets must be passed, each property on the object must be a bracket type, where the property key is the opening delimiter and property value is the closing delimiter.
-
- **Examples**
-
- ```js
- // no bracket support by default
- split('a.{b.c}');
- //=> [ 'a', '{b', 'c}' ]
-
- // support all basic bracket types: "<>{}[]()"
- split('a.{b.c}', {brackets: true});
- //=> [ 'a', '{b.c}' ]
-
- // also supports nested brackets
- split('a.{b.{c.d}.e}.f', {brackets: true});
- //=> [ 'a', '{b.{c.d}.e}', 'f' ]
-
- // support only the specified brackets
- split('[a.b].(c.d)', {brackets: {'[': ']'}});
- //=> [ '[a.b]', '(c', 'd)' ]
- ```
-
- ### options.sep
-
- **Type**: `string`
-
- **Default**: `.`
-
- The separator/character to split on.
-
- **Example**
-
- ```js
- split('a.b,c', {sep: ','});
- //=> ['a.b', 'c']
-
- // you can also pass the separator as string as the last argument
- split('a.b,c', ',');
- //=> ['a.b', 'c']
- ```
-
- ### options.keepEscaping
-
- **Type**: `boolean`
-
- **Default**: `undefined`
-
- Keep backslashes in the result.
-
- **Example**
-
- ```js
- split('a.b\\.c');
- //=> ['a', 'b.c']
-
- split('a.b.\\c', {keepEscaping: true});
- //=> ['a', 'b\.c']
- ```
-
- ### options.keepQuotes
-
- **Type**: `boolean`
-
- **Default**: `undefined`
-
- Keep single- or double-quotes in the result.
-
- **Example**
-
- ```js
- split('a."b.c.d".e');
- //=> ['a', 'b.c.d', 'e']
-
- split('a."b.c.d".e', {keepQuotes: true});
- //=> ['a', '"b.c.d"', 'e']
-
- split('a.\'b.c.d\'.e', {keepQuotes: true});
- //=> ['a', '\'b.c.d\'', 'e']
- ```
-
- ### options.keepDoubleQuotes
-
- **Type**: `boolean`
-
- **Default**: `undefined`
-
- Keep double-quotes in the result.
-
- **Example**
-
- ```js
- split('a."b.c.d".e');
- //=> ['a', 'b.c.d', 'e']
-
- split('a."b.c.d".e', {keepDoubleQuotes: true});
- //=> ['a', '"b.c.d"', 'e']
- ```
-
- ### options.keepSingleQuotes
-
- **Type**: `boolean`
-
- **Default**: `undefined`
-
- Keep single-quotes in the result.
-
- **Example**
-
- ```js
- split('a.\'b.c.d\'.e');
- //=> ['a', 'b.c.d', 'e']
-
- split('a.\'b.c.d\'.e', {keepSingleQuotes: true});
- //=> ['a', '\'b.c.d\'', 'e']
- ```
-
- ## Customizer
-
- **Type**: `function`
-
- **Default**: `undefined`
-
- Pass a function as the last argument to customize how tokens are added to the array.
-
- **Example**
-
- ```js
- var arr = split('a.b', function(tok) {
- if (tok.arr[tok.arr.length - 1] === 'a') {
- tok.split = false;
- }
- });
- console.log(arr);
- //=> ['a.b']
- ```
-
- **Properties**
-
- The `tok` object has the following properties:
-
- * `tok.val` (string) The current value about to be pushed onto the result array
- * `tok.idx` (number) the current index in the string
- * `tok.str` (string) the entire string
- * `tok.arr` (array) the result array
-
- ## Release history
-
- ### v3.0.0 - 2017-06-17
-
- **Added**
-
- * adds support for brackets
-
- ## 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).
-
- </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:
-
- * [deromanize](https://www.npmjs.com/package/deromanize): Convert roman numerals to arabic numbers (useful for books, outlines, documentation, slide decks, etc) | [homepage](https://github.com/jonschlinkert/deromanize "Convert roman numerals to arabic numbers (useful for books, outlines, documentation, slide decks, etc)")
- * [randomatic](https://www.npmjs.com/package/randomatic): Generate randomized strings of a specified length using simple character sequences. The original generate-password. | [homepage](https://github.com/jonschlinkert/randomatic "Generate randomized strings of a specified length using simple character sequences. The original generate-password.")
- * [repeat-string](https://www.npmjs.com/package/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string. | [homepage](https://github.com/jonschlinkert/repeat-string "Repeat the given string n times. Fastest implementation for repeating a string.")
- * [romanize](https://www.npmjs.com/package/romanize): Convert numbers to roman numerals (useful for books, outlines, documentation, slide decks, etc) | [homepage](https://github.com/jonschlinkert/romanize "Convert numbers to roman numerals (useful for books, outlines, documentation, slide decks, etc)")
-
- ### Contributors
-
- | **Commits** | **Contributor** |
- | --- | --- |
- | 28 | [jonschlinkert](https://github.com/jonschlinkert) |
- | 9 | [doowb](https://github.com/doowb) |
-
- ### 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 November 19, 2017._
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