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# Path-to-RegExp
Turn an Express-style path string such as `/user/:name` into a regular expression.
**Note:** This is a legacy branch. You should upgrade to `1.x`.
## Usage
```javascript
var pathToRegexp = require('path-to-regexp');
```
### pathToRegexp(path, keys, options)
- **path** A string in the express format, an array of such strings, or a regular expression
- **keys** An array to be populated with the keys present in the url. Once the function completes, this will be an array of strings.
- **options**
- **options.sensitive** Defaults to false, set this to true to make routes case sensitive
- **options.strict** Defaults to false, set this to true to make the trailing slash matter.
- **options.end** Defaults to true, set this to false to only match the prefix of the URL.
```javascript
var keys = [];
var exp = pathToRegexp('/foo/:bar', keys);
//keys = ['bar']
//exp = /^\/foo\/(?:([^\/]+?))\/?$/i
```
## Live Demo
You can see a live demo of this library in use at [express-route-tester](http://forbeslindesay.github.com/express-route-tester/).
## License
MIT