original_string: protected function prep_in_vals($a)
      {
          $vals = $this->pullRule();
          if (is_array($vals)) {
              return $vals;
          }
          $vals = explode(',', $vals);
          array_walk($vals, function ($val) {
              return trim($val);
          });
         // create_function('&$val', '$val = trim($val);'));
          return $vals;
      }
code: protected function prep_in_vals($a)
      {
          $vals = $this->pullRule();
          if (is_array($vals)) {
              return $vals;
          }
          $vals = explode(',', $vals);
          array_walk($vals, function ($val) {
              return trim($val);
          });
         // create_function('&$val', '$val = trim($val);'));
          return $vals;
      }
code_tokens: protected function prep_in_vals ( $ a ) { $ vals = $ this -> pullRule ( ) ; if ( is_array ( $ vals ) ) { return $ vals ; } $ vals = explode ( ',' , $ vals ) ; array_walk ( $ vals , function ( $ val ) { return trim ( $ val ) ; } ) ; // create_function('&$val', '$val = trim($val);')); return $ vals ; }
docstring: Explode and trim a comma-delmited list
  for the in and not_in rules.
docstring_tokens: Explode and trim a comma - delmited list for the in and not_in rules .