docs: private static Block block(final String comment, final int nameStart) {
        int attrIndex = comment.indexOf('{');
        if(attrIndex != -1) {
           return new Block(comment.substring(nameStart, attrIndex).trim(),
                   comment.substring(attrIndex).trim());
        } else {
           return new Block(comment.substring(nameStart).trim());
        }
     }