feat: add loose parameter

Author: lukeed

readme.md

@@ -90,18 +90,33 @@ exec('/users/lukeed/repos/new', baz);
 
 ## API
 
-### regexparam(str)
-
+### regexparam(str, loose)
 Returns: `Object`
 
 #### str
-
 Type: `String`
 
 The route/pathing string to convert.
 
 > **Note:** It does not matter if your `str` begins with a `/` — it will be added if missing.
 
+#### loose
+Type: `Boolean`<br>
+Default: `false`
+
+Should the `RegExp` match URLs that are longer than the [`str`](#str) pattern itself?<br>
+By default, the generated `RegExp` will test that the URL begins and _ends with_ the pattern.
+
+```js
+const rgx = require('regexparam');
+
+rgx('/users').pattern.test('/users/lukeed'); //=> false
+rgx('/users', true).pattern.test('/users/lukeed'); //=> true
+
+rgx('/users/:name').pattern.test('/users/lukeed/repos'); //=> false
+rgx('/users/:name', true).pattern.test('/users/lukeed/repos'); //=> true
+```
+
 
 ## Related
 

src/index.js

@@ -1,4 +1,4 @@
-export default function (str) {
+export default function (str, loose) {
 	var c, o, tmp, ext, keys=[], pattern='', arr=str.split('/');
 	arr[0] || arr.shift();
 
@@ -20,6 +20,6 @@ export default function (str) {
 
 	return {
 		keys: keys,
-		pattern: new RegExp('^' + pattern + '\/?$', 'i')
+		pattern: new RegExp('^' + pattern + (loose ? '(?:$|\/)' : '\/?$'), 'i')
 	};
 }