Finished CharacterReference class.

1 files changed, 19 insertions, 2 deletions

diff --git a/src/HTML5/Parser/CharacterReference.php b/src/HTML5/Parser/CharacterReference.php
index 72e1815..cc71f8f 100644
--- a/src/HTML5/Parser/CharacterReference.php
+++ b/src/HTML5/Parser/CharacterReference.php
@@ -1,10 +1,15 @@
 <?php
 namespace HTML5\Parser;
 
+use \HTML5\Entities;
+
 /**
  * Manage entity references.
  */
 class CharacterReference {
+
+  protected static $numeric_mask = array(0x0, 0x2FFFF, 0, 0xFFFF);
+
   /**
    * Given a name (e.g. 'amp'), lookup the UTF-8 character ('&')
    *
@@ -14,24 +19,36 @@ class CharacterReference {
    *   The character sequence. In UTF-8 this may be more than one byte.
    */
   public static function lookupName($name) {
-    return '';
+    $char = Entities::$byName[$name];
+
+    return $char;
   }
+
   /**
    * Given a Unicode codepoint, return the UTF-8 character.
+   *
+   * (NOT USED ANYWHERE)
    */
+  /*
   public static function lookupCode($codePoint) {
-    return '';
+    return 'POINT';
   }
+   */
 
   /**
    * Given a decimal number, return the UTF-8 character.
    */
   public static function lookupDecimal($int) {
+    $entity = '&#' . $int . ';';
+    // UNTESTED: This may fail on some planes. Couldn't find full documentation
+    // on the value of the mask array.
+    return mb_decode_numericentity($entity, self::$numeric_mask, 'utf-8');
   }
 
   /**
    * Given a hexidecimal number, return the UTF-8 character.
    */
   public static function lookupHex($hexdec) {
+    return self::lookupDecimal(hexdec($hexdec));
   }
 }