code: public boolean accept(ClassInfo classInfo, ClassHierarchyResolver hierarchyResolver) {
      return pattern.matcher(classInfo.getClassName()).find();
    }
docs: Determine whether a class name is to be accepted or not, based on
  the regular expression specified to the constructor.
  
  @param classInfo   the {@link com.poolik.classfinder.info.ClassInfo} object to test
  @return <tt>true</tt> if the class name matches,
  <tt>false</tt> if it doesn't