/**
 * Generic sugar function can return multiple settings types like:
 * - any settings : s('settings.{path}')
 * - look and feel : s('look-and-feel.{property}', $size)
 *  	- s('lnf.{property}', $size)
 * - space : s('space.{size}')
 * - color : s('color.{name}', $modifier)
 * - transition : s('transition.{name}')
 * - filter : s('filter.{name}')
 *
 * @example
 * $my-color : s('color.primary');
 * $my-transition : s('transition.fast');
 * $my-font-size : s('settings.typography.font.size')
 * // etc...
 *
 * @author 			Olivier Bossel <olivier.bossel@gmail.com> (https://olivierbossel.com)
 */
@function s($what, $param2: null, $param3: null) {
  @if type-of($what) == string and str-index($what, "settings.") {
    // get a configuration
    @return s-setting(str-slice($what, 10), $param2);
  } @else if type-of($what) == string and str-index($what, "look-and-feel.") {
    // get a look and feel
    @return s-look-and-feel(str-slice($what, 15), $param2);
  } @else if type-of($what) == string and str-index($what, "lnf.") {
    // get a look and feel
    @return s-look-and-feel(str-slice($what, 5), $param2);
  } @else if type-of($what) == string and str-index($what, "space.") {
    // get a space
    @return s-space(str-slice($what, 7));
  } @else if type-of($what) == string and str-index($what, "color.") {
    // get a color
    @return s-color(str-slice($what, 7), $param2);
  } @else if type-of($what) == string and str-index($what, "transition.") {
    // get a transition
    @return s-transition(str-slice($what, 12));
  } @else if type-of($what) == string and str-index($what, "filter.") {
    // get a filter
    @return s-filter(str-slice($what, 8));
  }
}