original_string: private function readMapping($className)
      {
          $file = $this->getMappingFile($className);
  
          return $file ? $this->parse($file) : null;
      }
code: private function readMapping($className)
      {
          $file = $this->getMappingFile($className);
  
          return $file ? $this->parse($file) : null;
      }
code_tokens: private function readMapping ( $ className ) { $ file = $ this -> getMappingFile ( $ className ) ; return $ file ? $ this -> parse ( $ file ) : null ; }
docstring: Reads the configuration for the given classname.
  
  @param string $className
  @return mixed|null
docstring_tokens: Reads the configuration for the given classname .