mirror of
https://github.com/arnaucube/raspberryGPIOhtmlserver.git
synced 2026-02-08 04:06:43 +01:00
120 lines
3.7 KiB
Markdown
Executable File
120 lines
3.7 KiB
Markdown
Executable File
# utf8.js [](https://travis-ci.org/mathiasbynens/utf8.js) [](https://gemnasium.com/mathiasbynens/utf8.js)
|
||
|
||
_utf8.js_ is a well-tested UTF-8 encoder/decoder written in JavaScript. Unlike many other JavaScript solutions, it is designed to be a _proper_ UTF-8 encoder/decoder: it can encode/decode any given Unicode code point, including astral symbols and unpaired surrogates.
|
||
|
||
Feel free to fork if you see possible improvements!
|
||
|
||
## Installation
|
||
|
||
Via [npm](http://npmjs.org/):
|
||
|
||
```bash
|
||
npm install utf8
|
||
```
|
||
|
||
Via [Bower](http://bower.io/):
|
||
|
||
```bash
|
||
bower install utf8
|
||
```
|
||
|
||
Via [Component](https://github.com/component/component):
|
||
|
||
```bash
|
||
component install mathiasbynens/utf8.js
|
||
```
|
||
|
||
In a browser:
|
||
|
||
```html
|
||
<script src="utf8.js"></script>
|
||
```
|
||
|
||
In [Narwhal](http://narwhaljs.org/), [Node.js](http://nodejs.org/), and [RingoJS ≥ v0.8.0](http://ringojs.org/):
|
||
|
||
```js
|
||
var utf8 = require('utf8');
|
||
```
|
||
|
||
In [Rhino](http://www.mozilla.org/rhino/):
|
||
|
||
```js
|
||
load('utf8.js');
|
||
```
|
||
|
||
Using an AMD loader like [RequireJS](http://requirejs.org/):
|
||
|
||
```js
|
||
require(
|
||
{
|
||
'paths': {
|
||
'utf8': 'path/to/utf8'
|
||
}
|
||
},
|
||
['utf8'],
|
||
function(utf8) {
|
||
console.log(utf8);
|
||
}
|
||
);
|
||
```
|
||
|
||
## API
|
||
|
||
### `utf8.encode(string)`
|
||
|
||
Encodes any given JavaScript string (`string`) as UTF-8, and returns the UTF-8-encoded version of the string.
|
||
|
||
```js
|
||
// U+00A9 COPYRIGHT SIGN; see http://codepoints.net/U+00A9
|
||
utf8.encode('\xA9');
|
||
// → '\xC2\xA9'
|
||
// U+10001 LINEAR B SYLLABLE B038 E; see http://codepoints.net/U+10001
|
||
utf8.encode('\uD800\uDC01');
|
||
// → '\xF0\x90\x80\x81'
|
||
```
|
||
|
||
### `utf8.decode(byteString)`
|
||
|
||
Encodes any given UTF-8-encoded string (`byteString`) as UTF-8, and returns the UTF-8-decoded version of the string. It throws an error when malformed UTF-8 is detected.
|
||
|
||
```js
|
||
utf8.decode('\xC2\xA9');
|
||
// → '\xA9'
|
||
|
||
utf8.decode('\xF0\x90\x80\x81');
|
||
// → '\uD800\uDC01'
|
||
// → U+10001 LINEAR B SYLLABLE B038 E
|
||
```
|
||
|
||
### `utf8.version`
|
||
|
||
A string representing the semantic version number.
|
||
|
||
## Support
|
||
|
||
utf8.js has been tested in at least Chrome 27-29, Firefox 3-22, Safari 4-6, Opera 10-12, IE 6-10, Node.js v0.10.0, Narwhal 0.3.2, RingoJS 0.8-0.9, PhantomJS 1.9.0, and Rhino 1.7RC4.
|
||
|
||
## Unit tests & code coverage
|
||
|
||
After cloning this repository, run `npm install` to install the dependencies needed for development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.
|
||
|
||
Once that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, PhantomJS, and web browsers as well, use `grunt test`.
|
||
|
||
To generate [the code coverage report](http://rawgithub.com/mathiasbynens/utf8.js/master/coverage/utf8.js/utf8.js.html), use `grunt cover`.
|
||
|
||
## FAQ
|
||
|
||
### Why is the first release named v2.0.0? Haven’t you heard of [semantic versioning](http://semver.org/)?
|
||
|
||
Long before utf8.js was created, the `utf8` module on npm was registered and used by another (slightly buggy) library. @ryanmcgrath was kind enough to give me access to the `utf8` package on npm when I told him about utf8.js. Since there has already been a v1.0.0 release of the old library, and to avoid breaking backwards compatibility with projects that rely on the `utf8` npm package, I decided the tag the first release of utf8.js as v2.0.0 and take it from there.
|
||
|
||
## Author
|
||
|
||
| [](http://twitter.com/mathias "Follow @mathias on Twitter") |
|
||
|---|
|
||
| [Mathias Bynens](http://mathiasbynens.be/) |
|
||
|
||
## License
|
||
|
||
utf8.js is dual licensed under the [MIT](http://mths.be/mit) and [GPL](http://mths.be/gpl) licenses.
|