split-string

Split a string on a character except when the character is escaped.

Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your ❤️ and support.

Install

Install with npm:

$ npm install --save split-string

Why use this?

Although it's easy to split on a string:

console.log('a.b.c'.split('.'));
//=> ['a', 'b', 'c']

It's more challenging to split a string whilst respecting escaped or quoted characters.

Bad

console.log('a\\.b.c'.split('.'));
//=> ['a\\', 'b', 'c']

console.log('"a.b.c".d'.split('.'));
//=> ['"a', 'b', 'c"', 'd']

Good

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 to learn how to choose the separator or retain quotes or escaping.

Usage

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:

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,

{
  '<': '>',
  '(': ')',
  '[': ']',
  '{': '}'
}

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

// 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

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

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

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

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

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

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

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

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

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

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

Related projects

You might also be interested in these projects:

• deromanize: Convert roman numerals to arabic numbers (useful for books, outlines, documentation, slide decks, etc) | homepage
• randomatic: Generate randomized strings of a specified length using simple character sequences. The original generate-password. | homepage
• repeat-string: Repeat the given string n times. Fastest implementation for repeating a string. | homepage
• romanize: Convert numbers to roman numerals (useful for books, outlines, documentation, slide decks, etc) | homepage

Contributors

Commits	Contributor
28	jonschlinkert
9	doowb

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2017, Jon Schlinkert. Released under the MIT License.

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This file was generated by verb-generate-readme, v0.6.0, on November 19, 2017.