[1.7.0] Make doctype object available from config, switch generator over to it.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1076 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Config.php

@@ -46,6 +46,11 @@ class HTMLPurifier_Config
      */
     var $autoFinalize = true;
     
+    /**
+     * Instance of HTMLPurifier_Doctype, representing current doctype
+     */
+    var $doctype;
+    
     /**
      * @param $definition HTMLPurifier_ConfigSchema that defines what directives
      *                    are allowed.
@@ -225,6 +230,16 @@ class HTMLPurifier_Config
         }
     }
     
+    /**
+     * Returns the current doctype object
+     */
+    function getDoctype() {
+        if (!$this->doctype) {
+            $this->getHTMLDefinition();
+        }
+        return $this->doctype;
+    }
+    
     /**
      * Loads configuration values from an ini file
      * @param $filename Name of ini file