BATIK-1386: Mark vendor properties as comments

Author: simonsteiner1984

batik-css/src/main/java/org/apache/batik/css/parser/Scanner.java

@@ -394,7 +394,12 @@ protected void nextToken() throws ParseException {
                                          reader.getColumn());
             case '-':
                 nextChar();
-                if (current == 'i') {
+                if (ScannerUtilities.isCSSIdentifierStartCharacter((char)current)) {
+                    while (current != -1 && current != ';') {
+                        nextChar();
+                    }
+                    nextChar();
+                    type = LexicalUnits.COMMENT;
                     return;
                 }
                 if (current != '-') {

batik-css/src/test/java/org/apache/batik/css/parser/ParserTestCase.java

@@ -38,5 +38,11 @@ public void property(String name, LexicalUnit value, boolean important) throws C
         });
         parser.parseStyleDeclaration("a:b;-inkscape-font-specification:'Calibri, Normal';c:d");
         Assert.assertTrue(properties.toString(), properties.contains("c"));
+        properties.clear();
+        parser.parseStyleDeclaration("-inkscape-font-specification:'Calibri, Normal';c:d");
+        Assert.assertTrue(properties.toString(), properties.contains("c"));
+        properties.clear();
+        parser.parseStyleDeclaration("-a:1;c:d");
+        Assert.assertTrue(properties.toString(), properties.contains("c"));
     }
 }