original_string: public function setPrefix($prefix = null)
      {
          $prefix = trim($prefix, '/');
  
          $this->prefix = ($prefix) ? trim($prefix, '/') . '/' : '';
      }
code: public function setPrefix($prefix = null)
      {
          $prefix = trim($prefix, '/');
  
          $this->prefix = ($prefix) ? trim($prefix, '/') . '/' : '';
      }
code_tokens: public function setPrefix ( $ prefix = null ) { $ prefix = trim ( $ prefix , '/' ) ; $ this -> prefix = ( $ prefix ) ? trim ( $ prefix , '/' ) . '/' : '' ; }
docstring: Sets the asset prefix path
  
  @param string $prefix A prefix containing assets
docstring_tokens: Sets the asset prefix path