original_string: protected function get_calculated_regexp() {
          $regexp = '/\$@' . $this->linkname;
          foreach ($this->mappings as $key => $value) {
              $regexp .= '\*(\d+)';
          }
          $regexp .= '@\$/';
          return $regexp;
      }
code: protected function get_calculated_regexp() {
          $regexp = '/\$@' . $this->linkname;
          foreach ($this->mappings as $key => $value) {
              $regexp .= '\*(\d+)';
          }
          $regexp .= '@\$/';
          return $regexp;
      }
code_tokens: protected function get_calculated_regexp ( ) { $ regexp = '/\$@' . $ this -> linkname ; foreach ( $ this -> mappings as $ key => $ value ) { $ regexp .= '\*(\d+)' ; } $ regexp .= '@\$/' ; return $ regexp ; }
docstring: based on rule definition, build the regular expression to execute on decode
docstring_tokens: based on rule definition build the regular expression to execute on decode