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/Composite.php

@@ -1,10 +1,26 @@
 <?php
 
+/**
+ * Allows multiple validators to attempt to validate attribute.
+ * 
+ * Composite is just what it sounds like: a composite of many validators.
+ * This means that multiple HTMLPurifier_AttrDef objects will have a whack
+ * at the string.  If one of them passes, that's what is returned.  This is
+ * especially useful for CSS values, which often are a choice between
+ * an enumerated set of predefined values or a flexible data type.
+ */
 class HTMLPurifier_AttrDef_Composite extends HTMLPurifier_AttrDef
 {
     
+    /**
+     * List of HTMLPurifier_AttrDef objects that may process strings
+     * @protected
+     */
     var $defs;
     
+    /**
+     * @param $defs List of HTMLPurifier_AttrDef objects
+     */
     function HTMLPurifier_AttrDef_Composite($defs) {
         $this->defs = $defs;
     }