whole_func_string: function match(name, regexps){
    for (let regexp of regexps)
      if (regexp.test(name))
        return true;
    return false;
  }
func_code_string: function match(name, regexps){
    for (let regexp of regexps)
      if (regexp.test(name))
        return true;
    return false;
  }
func_documentation_string: Returns true if header name matches one of the regular expressions.