Document all AttrDefs, also remove duplicant NumberSpan in favor of Integer.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@308 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/AttrDef/Enum.php

@@ -3,12 +3,27 @@
 require_once 'HTMLPurifier/AttrDef.php';
 
 // Enum = Enumerated
+/**
+ * Validates a keyword against a list of valid values.
+ */
 class HTMLPurifier_AttrDef_Enum extends HTMLPurifier_AttrDef
 {
     
+    /**
+     * Lookup table of valid values.
+     */
     var $valid_values   = array();
+    
+    /**
+     * Bool indicating whether or not enumeration is case sensitive.
+     * @note In general this is always case insensitive.
+     */
     var $case_sensitive = false; // values according to W3C spec
     
+    /**
+     * @param $valid_values List of valid values
+     * @param $case_sensitive Bool indicating whether or not case sensitive
+     */
     function HTMLPurifier_AttrDef_Enum(
         $valid_values = array(), $case_sensitive = false) {