/// Strip the glue (-- , __) from a string
///
/// @param {string} $string
/// @param {string} $glue
@function strip-glue($string, $glue) {
  $placeholder: random(99999);

  $clean-string: str-replace($string, $string, $placeholder + $string);
  $clean-string: str-replace($clean-string, $placeholder + $glue, '');

  @return $clean-string;
}