├── .editorconfig ├── .eslintrc.json ├── .gitattributes ├── .gitignore ├── .travis.yml ├── .verb.md ├── LICENSE ├── README.md ├── index.js ├── package.json └── test.js /.editorconfig: -------------------------------------------------------------------------------- 1 | # http://editorconfig.org/ 2 | root = true 3 | 4 | [*] 5 | charset = utf-8 6 | end_of_line = lf 7 | indent_size = 2 8 | indent_style = space 9 | insert_final_newline = true 10 | trim_trailing_whitespace = true 11 | 12 | [{**/{actual,fixtures,expected,templates}/**,*.md}] 13 | trim_trailing_whitespace = false 14 | insert_final_newline = false 15 | -------------------------------------------------------------------------------- /.eslintrc.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": [ 3 | "eslint:recommended" 4 | ], 5 | 6 | "env": { 7 | "browser": false, 8 | "es6": true, 9 | "node": true, 10 | "mocha": true 11 | }, 12 | 13 | "parserOptions":{ 14 | "ecmaVersion": 9, 15 | "sourceType": "module", 16 | "ecmaFeatures": { 17 | "modules": true, 18 | "experimentalObjectRestSpread": true 19 | } 20 | }, 21 | 22 | "globals": { 23 | "document": false, 24 | "navigator": false, 25 | "window": false 26 | }, 27 | 28 | "rules": { 29 | "accessor-pairs": 2, 30 | "arrow-spacing": [2, { "before": true, "after": true }], 31 | "block-spacing": [2, "always"], 32 | "brace-style": [2, "1tbs", { "allowSingleLine": true }], 33 | "comma-dangle": [2, "never"], 34 | "comma-spacing": [2, { "before": false, "after": true }], 35 | "comma-style": [2, "last"], 36 | "constructor-super": 2, 37 | "curly": [2, "multi-line"], 38 | "dot-location": [2, "property"], 39 | "eol-last": 2, 40 | "eqeqeq": [2, "allow-null"], 41 | "generator-star-spacing": [2, { "before": true, "after": true }], 42 | "handle-callback-err": [2, "^(err|error)$" ], 43 | "indent": [2, 2, { "SwitchCase": 1 }], 44 | "key-spacing": [2, { "beforeColon": false, "afterColon": true }], 45 | "keyword-spacing": [2, { "before": true, "after": true }], 46 | "new-cap": [2, { "newIsCap": true, "capIsNew": false }], 47 | "new-parens": 2, 48 | "no-array-constructor": 2, 49 | "no-caller": 2, 50 | "no-class-assign": 2, 51 | "no-cond-assign": 2, 52 | "no-const-assign": 2, 53 | "no-control-regex": 2, 54 | "no-debugger": 2, 55 | "no-delete-var": 2, 56 | "no-dupe-args": 2, 57 | "no-dupe-class-members": 2, 58 | "no-dupe-keys": 2, 59 | "no-duplicate-case": 2, 60 | "no-empty-character-class": 2, 61 | "no-eval": 2, 62 | "no-ex-assign": 2, 63 | "no-extend-native": 2, 64 | "no-extra-bind": 2, 65 | "no-extra-boolean-cast": 2, 66 | "no-extra-parens": [2, "functions"], 67 | "no-fallthrough": 2, 68 | "no-floating-decimal": 2, 69 | "no-func-assign": 2, 70 | "no-implied-eval": 2, 71 | "no-inner-declarations": [2, "functions"], 72 | "no-invalid-regexp": 2, 73 | "no-irregular-whitespace": 2, 74 | "no-iterator": 2, 75 | "no-label-var": 2, 76 | "no-labels": 2, 77 | "no-lone-blocks": 2, 78 | "no-mixed-spaces-and-tabs": 2, 79 | "no-multi-spaces": 2, 80 | "no-multi-str": 2, 81 | "no-multiple-empty-lines": [2, { "max": 1 }], 82 | "no-native-reassign": 0, 83 | "no-negated-in-lhs": 2, 84 | "no-new": 2, 85 | "no-new-func": 2, 86 | "no-new-object": 2, 87 | "no-new-require": 2, 88 | "no-new-wrappers": 2, 89 | "no-obj-calls": 2, 90 | "no-octal": 2, 91 | "no-octal-escape": 2, 92 | "no-proto": 0, 93 | "no-redeclare": 2, 94 | "no-regex-spaces": 2, 95 | "no-return-assign": 2, 96 | "no-self-compare": 2, 97 | "no-sequences": 2, 98 | "no-shadow-restricted-names": 2, 99 | "no-spaced-func": 2, 100 | "no-sparse-arrays": 2, 101 | "no-this-before-super": 2, 102 | "no-throw-literal": 2, 103 | "no-trailing-spaces": 0, 104 | "no-undef": 2, 105 | "no-undef-init": 2, 106 | "no-unexpected-multiline": 2, 107 | "no-unneeded-ternary": [2, { "defaultAssignment": false }], 108 | "no-unreachable": 2, 109 | "no-unused-vars": [2, { "vars": "all", "args": "none" }], 110 | "no-useless-call": 0, 111 | "no-with": 2, 112 | "one-var": [0, { "initialized": "never" }], 113 | "operator-linebreak": [0, "after", { "overrides": { "?": "before", ":": "before" } }], 114 | "padded-blocks": [0, "never"], 115 | "quotes": [2, "single", "avoid-escape"], 116 | "radix": 2, 117 | "semi": [2, "always"], 118 | "semi-spacing": [2, { "before": false, "after": true }], 119 | "space-before-blocks": [2, "always"], 120 | "space-before-function-paren": [2, "never"], 121 | "space-in-parens": [2, "never"], 122 | "space-infix-ops": 2, 123 | "space-unary-ops": [2, { "words": true, "nonwords": false }], 124 | "spaced-comment": [0, "always", { "markers": ["global", "globals", "eslint", "eslint-disable", "*package", "!", ","] }], 125 | "use-isnan": 2, 126 | "valid-typeof": 2, 127 | "wrap-iife": [2, "any"], 128 | "yoda": [2, "never"] 129 | } 130 | } 131 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | # Enforce Unix newlines 2 | * text eol=lf 3 | 4 | # binaries 5 | *.ai binary 6 | *.psd binary 7 | *.jpg binary 8 | *.gif binary 9 | *.png binary 10 | *.jpeg binary 11 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # always ignore files 2 | *.DS_Store 3 | .idea 4 | .vscode 5 | *.sublime-* 6 | 7 | # test related, or directories generated by tests 8 | test/actual 9 | actual 10 | coverage 11 | .nyc* 12 | 13 | # npm 14 | node_modules 15 | npm-debug.log 16 | 17 | # yarn 18 | yarn.lock 19 | yarn-error.log 20 | 21 | # misc 22 | _gh_pages 23 | _draft 24 | _drafts 25 | bower_components 26 | vendor 27 | temp 28 | tmp 29 | TODO.md 30 | package-lock.json -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | sudo: false 2 | os: 3 | - linux 4 | - osx 5 | language: node_js 6 | node_js: 7 | - node 8 | - '9' 9 | - '8' 10 | - '7' 11 | - '6' 12 | - '5' 13 | - '4' 14 | - '0.12' 15 | - '0.10' 16 | -------------------------------------------------------------------------------- /.verb.md: -------------------------------------------------------------------------------- 1 | ## Usage 2 | 3 | ```js 4 | var not = require('regex-not'); 5 | ``` 6 | 7 | The main export is a function that takes a string an options object. 8 | 9 | ```js 10 | not(string[, options]); 11 | ``` 12 | 13 | **Example** 14 | 15 | ```js 16 | var not = require('regex-not'); 17 | console.log(not('foo')); 18 | //=> /^(?:(?!^(?:foo)$).)+$/ 19 | ``` 20 | 21 | **Strict matching** 22 | 23 | By default, the returned regex is for strictly (not) matching the exact given pattern (in other words, "match this string if it does NOT _exactly equal_ `foo`"): 24 | 25 | ```js 26 | var re = not('foo'); 27 | console.log(re.test('foo')); //=> false 28 | console.log(re.test('bar')); //=> true 29 | console.log(re.test('foobar')); //=> true 30 | console.log(re.test('barfoo')); //=> true 31 | ``` 32 | 33 | ### .create 34 | 35 | Returns a string to allow you to create your own regex: 36 | 37 | ```js 38 | console.log(not.create('foo')); 39 | //=> '(?:(?!^(?:foo)$).)+' 40 | ``` 41 | 42 | ### Options 43 | 44 | **options.contains** 45 | 46 | You can relax strict matching by setting `options.contains` to true (in other words, "match this string if it does NOT _contain_ `foo`"): 47 | 48 | ```js 49 | var re = not('foo'); 50 | console.log(re.test('foo', {contains: true})); //=> false 51 | console.log(re.test('bar', {contains: true})); //=> true 52 | console.log(re.test('foobar', {contains: true})); //=> false 53 | console.log(re.test('barfoo', {contains: true})); //=> false 54 | ``` 55 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2016, 2018, Jon Schlinkert. 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # regex-not [![NPM version](https://img.shields.io/npm/v/regex-not.svg?style=flat)](https://www.npmjs.com/package/regex-not) [![NPM monthly downloads](https://img.shields.io/npm/dm/regex-not.svg?style=flat)](https://npmjs.org/package/regex-not) [![NPM total downloads](https://img.shields.io/npm/dt/regex-not.svg?style=flat)](https://npmjs.org/package/regex-not) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/regex-not.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/regex-not) 2 | 3 | > Create a javascript regular expression for matching everything except for the given string. 4 | 5 | Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support. 6 | 7 | ## Install 8 | 9 | Install with [npm](https://www.npmjs.com/): 10 | 11 | ```sh 12 | $ npm install --save regex-not 13 | ``` 14 | 15 | ## Usage 16 | 17 | ```js 18 | var not = require('regex-not'); 19 | ``` 20 | 21 | The main export is a function that takes a string an options object. 22 | 23 | ```js 24 | not(string[, options]); 25 | ``` 26 | 27 | **Example** 28 | 29 | ```js 30 | var not = require('regex-not'); 31 | console.log(not('foo')); 32 | //=> /^(?:(?!^(?:foo)$).)+$/ 33 | ``` 34 | 35 | **Strict matching** 36 | 37 | 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`"): 38 | 39 | ```js 40 | var re = not('foo'); 41 | console.log(re.test('foo')); //=> false 42 | console.log(re.test('bar')); //=> true 43 | console.log(re.test('foobar')); //=> true 44 | console.log(re.test('barfoo')); //=> true 45 | ``` 46 | 47 | ### .create 48 | 49 | Returns a string to allow you to create your own regex: 50 | 51 | ```js 52 | console.log(not.create('foo')); 53 | //=> '(?:(?!^(?:foo)$).)+' 54 | ``` 55 | 56 | ### Options 57 | 58 | **options.contains** 59 | 60 | You can relax strict matching by setting `options.contains` to true (in other words, "match this string if it does NOT _contain_ `foo`"): 61 | 62 | ```js 63 | var re = not('foo'); 64 | console.log(re.test('foo', {contains: true})); //=> false 65 | console.log(re.test('bar', {contains: true})); //=> true 66 | console.log(re.test('foobar', {contains: true})); //=> false 67 | console.log(re.test('barfoo', {contains: true})); //=> false 68 | ``` 69 | 70 | ## About 71 | 72 |
73 | Contributing 74 | 75 | Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). 76 | 77 |
78 | 79 |
80 | Running Tests 81 | 82 | 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: 83 | 84 | ```sh 85 | $ npm install && npm test 86 | ``` 87 | 88 |
89 | 90 |
91 | Building docs 92 | 93 | _(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.)_ 94 | 95 | To generate the readme, run the following command: 96 | 97 | ```sh 98 | $ npm install -g verbose/verb#dev verb-generate-readme && verb 99 | ``` 100 | 101 |
102 | 103 | ### Related projects 104 | 105 | You might also be interested in these projects: 106 | 107 | * [regex-cache](https://www.npmjs.com/package/regex-cache): Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of… [more](https://github.com/jonschlinkert/regex-cache) | [homepage](https://github.com/jonschlinkert/regex-cache "Memoize the results of a call to the RegExp constructor, avoiding repetitious runtime compilation of the same string and options, resulting in surprising performance improvements.") 108 | * [to-regex](https://www.npmjs.com/package/to-regex): Generate a regex from a string or array of strings. | [homepage](https://github.com/jonschlinkert/to-regex "Generate a regex from a string or array of strings.") 109 | 110 | ### Contributors 111 | 112 | | **Commits** | **Contributor** | 113 | | --- | --- | 114 | | 9 | [jonschlinkert](https://github.com/jonschlinkert) | 115 | | 1 | [doowb](https://github.com/doowb) | 116 | | 1 | [EdwardBetts](https://github.com/EdwardBetts) | 117 | 118 | ### Author 119 | 120 | **Jon Schlinkert** 121 | 122 | * [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert) 123 | * [github/jonschlinkert](https://github.com/jonschlinkert) 124 | * [twitter/jonschlinkert](https://twitter.com/jonschlinkert) 125 | 126 | ### License 127 | 128 | Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert). 129 | Released under the [MIT License](LICENSE). 130 | 131 | *** 132 | 133 | _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 19, 2018._ -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | var extend = require('extend-shallow'); 4 | var safe = require('safe-regex'); 5 | 6 | /** 7 | * The main export is a function that takes a `pattern` string and an `options` object. 8 | * 9 | * ```js 10 | & var not = require('regex-not'); 11 | & console.log(not('foo')); 12 | & //=> /^(?:(?!^(?:foo)$).)*$/ 13 | * ``` 14 | * 15 | * @param {String} `pattern` 16 | * @param {Object} `options` 17 | * @return {RegExp} Converts the given `pattern` to a regex using the specified `options`. 18 | * @api public 19 | */ 20 | 21 | function toRegex(pattern, options) { 22 | return new RegExp(toRegex.create(pattern, options)); 23 | } 24 | 25 | /** 26 | * Create a regex-compatible string from the given `pattern` and `options`. 27 | * 28 | * ```js 29 | & var not = require('regex-not'); 30 | & console.log(not.create('foo')); 31 | & //=> '^(?:(?!^(?:foo)$).)*$' 32 | * ``` 33 | * @param {String} `pattern` 34 | * @param {Object} `options` 35 | * @return {String} 36 | * @api public 37 | */ 38 | 39 | toRegex.create = function(pattern, options) { 40 | if (typeof pattern !== 'string') { 41 | throw new TypeError('expected a string'); 42 | } 43 | 44 | var opts = extend({}, options); 45 | if (opts.contains === true) { 46 | opts.strictNegate = false; 47 | } 48 | 49 | var open = opts.strictOpen !== false ? '^' : ''; 50 | var close = opts.strictClose !== false ? '$' : ''; 51 | var endChar = opts.endChar ? opts.endChar : '+'; 52 | var str = pattern; 53 | 54 | if (opts.strictNegate === false) { 55 | str = '(?:(?!(?:' + pattern + ')).)' + endChar; 56 | } else { 57 | str = '(?:(?!^(?:' + pattern + ')$).)' + endChar; 58 | } 59 | 60 | var res = open + str + close; 61 | if (opts.safe === true && safe(res) === false) { 62 | throw new Error('potentially unsafe regular expression: ' + res); 63 | } 64 | 65 | return res; 66 | }; 67 | 68 | /** 69 | * Expose `toRegex` 70 | */ 71 | 72 | module.exports = toRegex; 73 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "regex-not", 3 | "description": "Create a javascript regular expression for matching everything except for the given string.", 4 | "version": "1.0.2", 5 | "homepage": "https://github.com/jonschlinkert/regex-not", 6 | "author": "Jon Schlinkert (https://github.com/jonschlinkert)", 7 | "repository": "jonschlinkert/regex-not", 8 | "bugs": { 9 | "url": "https://github.com/jonschlinkert/regex-not/issues" 10 | }, 11 | "license": "MIT", 12 | "files": [ 13 | "index.js" 14 | ], 15 | "main": "index.js", 16 | "engines": { 17 | "node": ">=0.10.0" 18 | }, 19 | "scripts": { 20 | "test": "mocha" 21 | }, 22 | "dependencies": { 23 | "extend-shallow": "^3.0.2", 24 | "safe-regex": "^1.1.0" 25 | }, 26 | "devDependencies": { 27 | "gulp-format-md": "^1.0.0", 28 | "mocha": "^3.5.3" 29 | }, 30 | "keywords": [ 31 | "exec", 32 | "match", 33 | "negate", 34 | "negation", 35 | "not", 36 | "regex", 37 | "regular expression", 38 | "test" 39 | ], 40 | "verb": { 41 | "toc": false, 42 | "layout": "default", 43 | "tasks": [ 44 | "readme" 45 | ], 46 | "plugins": [ 47 | "gulp-format-md" 48 | ], 49 | "related": { 50 | "list": [ 51 | "regex-cache", 52 | "to-regex" 53 | ] 54 | }, 55 | "reflinks": [ 56 | "verb", 57 | "verb-generate-readme" 58 | ], 59 | "lint": { 60 | "reflinks": true 61 | } 62 | } 63 | } 64 | -------------------------------------------------------------------------------- /test.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | require('mocha'); 4 | var assert = require('assert'); 5 | var not = require('./'); 6 | 7 | describe('regex-not', function() { 8 | it('should export a function', function() { 9 | assert.equal(typeof not, 'function'); 10 | }); 11 | 12 | it('should create a negation regex', function() { 13 | var re = not('foo'); 14 | assert.deepEqual(re, /^(?:(?!^(?:foo)$).)+$/); 15 | assert.equal(re.test('foo'), false); 16 | assert.equal(re.test('bar'), true); 17 | assert.equal(re.test('foobar'), true); 18 | assert.equal(re.test('barfoo'), true); 19 | }); 20 | 21 | it('should create a loose negation regex when `options.contains` is true', function() { 22 | assert.deepEqual(not('foo', {contains: true}), /^(?:(?!(?:foo)).)+$/); 23 | assert.equal(not('foo', {contains: true}).test('foo'), false); 24 | assert.equal(not('foo', {contains: true}).test('bar'), true); 25 | assert.equal(not('foo', {contains: true}).test('foobar'), false); 26 | assert.equal(not('foo', {contains: true}).test('barfoo'), false); 27 | }); 28 | 29 | it('should create a loose negation regex when `options.strictNegate` is false', function() { 30 | var opts = {strictNegate: false}; 31 | assert.deepEqual(not('foo', opts), /^(?:(?!(?:foo)).)+$/); 32 | assert.equal(not('foo', opts).test('foo'), false); 33 | assert.equal(not('foo', opts).test('bar'), true); 34 | assert.equal(not('foo', opts).test('foobar'), false); 35 | assert.equal(not('foo', opts).test('barfoo'), false); 36 | }); 37 | 38 | it('should support `options.endChar`', function() { 39 | var opts = {endChar: '*'}; 40 | assert.deepEqual(not('foo', opts), /^(?:(?!^(?:foo)$).)*$/); 41 | assert.deepEqual(not('foo', opts).exec('foo'), null); 42 | assert.equal(not('foo', opts).test('foo'), false); 43 | assert.equal(not('foo', opts).test('bar'), true); 44 | assert.equal(not('foo', opts).test('foobar'), true); 45 | assert.equal(not('foo', opts).test('barfoo'), true); 46 | }); 47 | 48 | it('should throw when a potentially unsafe regex is passed', function() { 49 | assert.throws(function() { 50 | not('(x+x+)+y', { safe: true }); 51 | }, /potentially unsafe/); 52 | }); 53 | 54 | it('should throw an error when invalid args are passed', function() { 55 | assert.throws(function() { 56 | not(); 57 | }, /expected/); 58 | }); 59 | }); 60 | --------------------------------------------------------------------------------