[1.7.0] Convert Image, Legacy and List to use new format.

- Make attribute array parameter optional
- Optimize contents parsing for keywords

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1041 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/HTMLModule/Image.php

@@ -18,16 +18,16 @@ class HTMLPurifier_HTMLModule_Image extends HTMLPurifier_HTMLModule
     var $content_sets = array('Inline' => 'img');
     
     function HTMLPurifier_HTMLModule_Image() {
-        $this->info['img'] = new HTMLPurifier_ElementDef();
-        $this->info['img']->attr = array(
-            0 => array('Common'),
-            'alt' => 'Text',
-            'height' => 'Length',
-            'longdesc' => 'URI', 
-            'src' => new HTMLPurifier_AttrDef_URI(true), // embedded
-            'width' => 'Length'
+        $this->addElement(
+            'img', true, 'Inline', 'Empty', 'Common',
+            array(
+                'alt' => 'Text',
+                'height' => 'Length',
+                'longdesc' => 'URI', 
+                'src' => new HTMLPurifier_AttrDef_URI(true), // embedded
+                'width' => 'Length'
+            )
         );
-        $this->info['img']->content_model_type = 'empty';
         $this->info['img']->attr_transform_post[] =
             new HTMLPurifier_AttrTransform_ImgRequired();
     }