87 lines
2.8 KiB
Markdown
87 lines
2.8 KiB
Markdown
# ansi-regex [](https://travis-ci.org/chalk/ansi-regex)
|
|
|
|
> Regular expression for matching [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code)
|
|
|
|
---
|
|
|
|
<div align="center">
|
|
<b>
|
|
<a href="https://tidelift.com/subscription/pkg/npm-ansi-regex?utm_source=npm-ansi-regex&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
|
|
</b>
|
|
<br>
|
|
<sub>
|
|
Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
|
|
</sub>
|
|
</div>
|
|
|
|
---
|
|
|
|
|
|
## Install
|
|
|
|
```
|
|
$ npm install ansi-regex
|
|
```
|
|
|
|
|
|
## Usage
|
|
|
|
```js
|
|
const ansiRegex = require('ansi-regex');
|
|
|
|
ansiRegex().test('\u001B[4mcake\u001B[0m');
|
|
//=> true
|
|
|
|
ansiRegex().test('cake');
|
|
//=> false
|
|
|
|
'\u001B[4mcake\u001B[0m'.match(ansiRegex());
|
|
//=> ['\u001B[4m', '\u001B[0m']
|
|
|
|
'\u001B[4mcake\u001B[0m'.match(ansiRegex({onlyFirst: true}));
|
|
//=> ['\u001B[4m']
|
|
|
|
'\u001B]8;;https://github.com\u0007click\u001B]8;;\u0007'.match(ansiRegex());
|
|
//=> ['\u001B]8;;https://github.com\u0007', '\u001B]8;;\u0007']
|
|
```
|
|
|
|
|
|
## API
|
|
|
|
### ansiRegex([options])
|
|
|
|
Returns a regex for matching ANSI escape codes.
|
|
|
|
#### options
|
|
|
|
##### onlyFirst
|
|
|
|
Type: `boolean`<br>
|
|
Default: `false` *(Matches any ANSI escape codes in a string)*
|
|
|
|
Match only the first ANSI escape.
|
|
|
|
|
|
## FAQ
|
|
|
|
### Why do you test for codes not in the ECMA 48 standard?
|
|
|
|
Some of the codes we run as a test are codes that we acquired finding various lists of non-standard or manufacturer specific codes. We test for both standard and non-standard codes, as most of them follow the same or similar format and can be safely matched in strings without the risk of removing actual string content. There are a few non-standard control codes that do not follow the traditional format (i.e. they end in numbers) thus forcing us to exclude them from the test because we cannot reliably match them.
|
|
|
|
On the historical side, those ECMA standards were established in the early 90's whereas the VT100, for example, was designed in the mid/late 70's. At that point in time, control codes were still pretty ungoverned and engineers used them for a multitude of things, namely to activate hardware ports that may have been proprietary. Somewhere else you see a similar 'anarchy' of codes is in the x86 architecture for processors; there are a ton of "interrupts" that can mean different things on certain brands of processors, most of which have been phased out.
|
|
|
|
|
|
## Security
|
|
|
|
To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security). Tidelift will coordinate the fix and disclosure.
|
|
|
|
|
|
## Maintainers
|
|
|
|
- [Sindre Sorhus](https://github.com/sindresorhus)
|
|
- [Josh Junon](https://github.com/qix-)
|
|
|
|
|
|
## License
|
|
|
|
MIT
|