Merge pull request #70 from BlueM/master

Add missing superscript digits and all subscript digits

README.md

@@ -78,7 +78,7 @@ $slugify->activateRuleset('esperanto');
 echo $slugify->slugify('serĉi manĝi'); // sercxi-mangxi
 ```
 
-You can add rulesets by using `Slugify::addRuleset()` and retrieve all rulesets with `Slugify::getRuleset()`.
+You can add rulesets by using `Slugify::addRuleset()` and retrieve all rulesets with `Slugify::getRulesets()`.
 
 ### Further Customization
 

src/Slugify.php

@@ -27,13 +27,30 @@ class Slugify implements SlugifyInterface
 
     /** @var array */
     protected $rules = array(
-        // Numeric characters
+        // Numeric characters, superscript
+        '°' => 0,
         '¹' => 1,
         '²' => 2,
         '³' => 3,
+        '⁴' => 4,
+        '⁵' => 5,
+        '⁶' => 6,
+        '⁷' => 7,
+        '⁸' => 8,
+        '⁹' => 9,
+        // Numeric characters, subscript
+        '₀' => 0,
+        '₁' => 1,
+        '₂' => 2,
+        '₃' => 3,
+        '₄' => 4,
+        '₅' => 5,
+        '₆' => 6,
+        '₇' => 7,
+        '₈' => 8,
+        '₉' => 9,
 
         // Latin
-        '°' => 0,
         'æ' => 'ae',
         'ǽ' => 'ae',
         'À' => 'A',

tests/SlugifyTest.php

@@ -197,7 +197,7 @@ public function provider()
             array('Á À á à É È é è Ó Ò ó ò Ñ ñ Ú Ù ú ù', 'a-a-a-a-e-e-e-e-o-o-o-o-n-n-u-u-u-u'),
             array('Â â Ê ê Ô ô Û û', 'a-a-e-e-o-o-u-u'),
             array('Â â Ê ê Ô ô Û 1', 'a-a-e-e-o-o-u-1'),
-            array('°¹²³@', '0123at'),
+            array('°¹²³⁴⁵⁶⁷⁸⁹@₀₁₂₃₄₅₆₇₈₉', '0123456789at0123456789'),
             array('Mórë thån wørds', 'more-than-words'),
             array('Блоґ їжачка', 'blog-jizhachka'),
             array('фильм', 'film'),