50 lines
2.2 KiB
Markdown
50 lines
2.2 KiB
Markdown
# unicode-match-property-value-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-match-property-value-ecmascript)
|
||
|
||
_unicode-match-property-value-ecmascript_ matches a given Unicode property value or [property value alias](https://github.com/mathiasbynens/unicode-property-value-aliases) to its canonical property value without applying [loose matching](https://github.com/mathiasbynens/unicode-loose-match), per the algorithm used for [RegExp Unicode property escapes in ECMAScript](https://github.com/tc39/proposal-regexp-unicode-property-escapes). Consider it a strict alternative to loose matching.
|
||
|
||
## Installation
|
||
|
||
To use _unicode-match-property-value-ecmascript_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):
|
||
|
||
```bash
|
||
$ npm install unicode-match-property-value-ecmascript
|
||
```
|
||
|
||
Then, `require` it:
|
||
|
||
```js
|
||
const matchPropertyValue = require('unicode-match-property-value-ecmascript');
|
||
```
|
||
|
||
## API
|
||
|
||
This module exports a single function named `matchPropertyValue`.
|
||
|
||
### `matchPropertyValue(property, value)`
|
||
|
||
This function takes a string `property` that is a canonical/unaliased Unicode property name, and a string `value`. It attemps to match `value` to a canonical Unicode property value for the given property. If there’s a match, it returns the canonical property value. Otherwise, it throws an exception.
|
||
|
||
```js
|
||
// Find the canonical property value:
|
||
matchPropertyValue('Script_Extensions', 'Aghb')
|
||
// → 'Caucasian_Albanian'
|
||
|
||
matchPropertyValue('Script_Extensions', 'Caucasian_Albanian')
|
||
// → 'Caucasian_Albanian'
|
||
|
||
matchPropertyValue('script_extensions', 'Caucasian_Albanian') // Note: incorrect casing.
|
||
// → throws
|
||
|
||
matchPropertyValue('Script_Extensions', 'caucasian_albanian') // Note: incorrect casing.
|
||
// → throws
|
||
```
|
||
|
||
## Author
|
||
|
||
| [](https://twitter.com/mathias "Follow @mathias on Twitter") |
|
||
|---|
|
||
| [Mathias Bynens](https://mathiasbynens.be/) |
|
||
|
||
## License
|
||
|
||
_unicode-match-property-value-ecmascript_ is available under the [MIT](https://mths.be/mit) license.
|