[1.7.0] Finish implementing legacy elements, begin implementing legacy attributes

- Migrated most unit tests over to XHTML 1.0 Strict to preserve transformation behavior
- Created %Core.ColorKeywords to be shared between CSS_Color and HTML_Color
- Added AttrDef_HTML_Color as AttrType Color
- HTMLPurifier_Config::create(HTMLPurifier_Config $config) now clones the object
- Attribute minimization for HTML implemented in Generator
- Move div@align fix from proprietary to regular set
- Color keywords now map to full six digit hexadecimal codes
- Harness will now tack on per-use-case configuration

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1084 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/AttrDef/CSS/Color.php

@@ -2,6 +2,31 @@
 
 require_once 'HTMLPurifier/AttrDef.php';
 
+HTMLPurifier_ConfigSchema::define(
+    'Core', 'ColorKeywords', array(
+        'maroon'    => '#800000',
+        'red'       => '#FF0000',
+        'orange'    => '#FFA500',
+        'yellow'    => '#FFFF00',
+        'olive'     => '#808000',
+        'purple'    => '#800080',
+        'fuchsia'   => '#FF00FF',
+        'white'     => '#FFFFFF',
+        'lime'      => '#00FF00',
+        'green'     => '#008000',
+        'navy'      => '#000080',
+        'blue'      => '#0000FF',
+        'aqua'      => '#00FFFF',
+        'teal'      => '#008080',
+        'black'     => '#000000',
+        'silver'    => '#C0C0C0',
+        'gray'      => '#808080'
+    ), 'hash', '
+Lookup array of color names to six digit hexadecimal number corresponding
+to color, with preceding hash mark. Used when parsing colors.
+This directive has been available since 1.7.0.
+');
+
 /**
  * Validates Color as defined by CSS.
  */
@@ -10,25 +35,8 @@ class HTMLPurifier_AttrDef_CSS_Color extends HTMLPurifier_AttrDef
     
     function validate($color, $config, &$context) {
         
-        static $colors = array(
-            'maroon'    => '#800000',
-            'red'       => '#F00',
-            'orange'    => '#FFA500',
-            'yellow'    => '#FF0',
-            'olive'     => '#808000',
-            'purple'    => '#800080',
-            'fuchsia'   => '#F0F',
-            'white'     => '#FFF',
-            'lime'      => '#0F0',
-            'green'     => '#008000',
-            'navy'      => '#000080',
-            'blue'      => '#00F',
-            'aqua'      => '#0FF',
-            'teal'      => '#008080',
-            'black'     => '#000',
-            'silver'    => '#C0C0C0',
-            'gray'      => '#808080'
-        );
+        static $colors = null;
+        if ($colors === null) $colors = $config->get('Core', 'ColorKeywords');
         
         $color = trim($color);
         if (!$color) return false;