Fix bug in parsing single attribute with entities.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>

NEWS

@@ -10,6 +10,8 @@ NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier
 ==========================
 
 4.1.1, unknown release date
+- Fix bug in DirectLex for parsing elements with a single attribute
+  with entities.
 - Rewrite CSS output logic for font-family and url().  Thanks Mario
   Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
   Terada <t-terada@violet.plala.or.jp> for suggesting the fix.

configdoc/usage.xml

@@ -6,6 +6,7 @@
   </file>
   <file name="HTMLPurifier/Lexer.php">
    <line>81</line>
+   <line>269</line>
   </file>
   <file name="HTMLPurifier/Lexer/DirectLex.php">
    <line>53</line>

library/HTMLPurifier/Lexer/DirectLex.php

@@ -384,7 +384,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
                 }
             }
             if ($value === false) $value = '';
-            return array($key => $value);
+            return array($key => $this->parseData($value));
         }
 
         // setup loop environment

tests/HTMLPurifier/LexerTest.php

@@ -262,6 +262,15 @@ class HTMLPurifier_LexerTest extends HTMLPurifier_Harness
         );
     }
 
+    function test_tokenizeHTML_singleAttribute() {
+        $this->assertTokenization(
+            '<br style="&amp;" />',
+            array(
+                new HTMLPurifier_Token_Empty('br', array('style' => '&'))
+            )
+        );
+    }
+
     function test_tokenizeHTML_emptyTag() {
         $this->assertTokenization(
             '<br />',