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  • License MIT

Create a javascript regular expression for matching everything except for the given string.

Package Exports

  • regex-not

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (regex-not) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

regex-not NPM version NPM downloads Build Status

Create a javascript regular expression for matching everything except for the given string.

Install

Install with npm:

$ npm install --save regex-not

Usage

var not = require('regex-not');

The main export is a function that takes a string an options object.

not(string[, options]);

Example

var not = require('regex-not');
console.log(not('foo'));
//=> /^(?:(?!^(?:foo)$).)*$/

Strict matching

By default, the returned regex is for strictly (not) matching the exact given pattern (in other words, "match this string if it does NOT exactly equal foo"):

var re = not('foo');
console.log(re.test('foo'));     //=> false
console.log(re.test('bar'));     //=> true
console.log(re.test('foobar'));  //=> true
console.log(re.test('barfoo'));  //=> true

.create

Get a string, so you can create your own regex:

console.log(not.create('foo'));
//=> '(?:(?!^(?:foo)$).)*'

Options

options.contains

You can relax strict matching by setting options.contains to true (in other words, "match this string if it does NOT contain foo"):

var re = not('foo');
console.log(re.test('foo', {contains: true}));     //=> false
console.log(re.test('bar', {contains: true}));     //=> true
console.log(re.test('foobar', {contains: true}));  //=> false
console.log(re.test('barfoo', {contains: true}));  //=> false

About

  • regex-cache: Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of… more | homepage
  • to-regex: Generate a regex from a string or array of strings. | homepage

Contributing

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

Building docs

(This document was generated by verb-generate-readme (a verb generator), please don't edit the readme directly. Any changes to the readme must be made in .verb.md.)

To generate the readme and API documentation with verb:

$ npm install -g verb verb-generate-readme && verb

Running tests

Install dev dependencies:

$ npm install -d && npm test

Author

Jon Schlinkert

License

Copyright © 2016, Jon Schlinkert. Released under the MIT license.

This file was generated by verb-generate-readme, v0.1.31, on September 26, 2016.