Function extract_unary

src/laybasic/laybasic/layParsedLayerSource.cc:428–436

* @brief Expression parser: parse unary operations with one argument */

 *  @brief Expression parser: parse unary operations with one argument
 */
static PropertySelectorBase *
extract_unary (tl::Extractor &ex)
{
  if (ex.test ("!")) {
    return new PropertySelectorNot (extract_unary (ex));
  } else {
    return extract_element (ex);
  }
}

/**
 *  @brief Expression parser: parse binary operations at level 2