Sass configurable _map-keys and _map-values functions.

SassMeister-input.scss

// ----
// Sass (v3.3.5)
// Compass (v1.0.0.alpha.18)
// ----

// Sass core function return comma separated lists.
// configurabele _map-keys and _map-values functions.
// Does not work with nested maps. (neither core).


// Returns a list of all keys in a map.
// --------------------------------------------------------------------------------
// @param [map] $map
// @param [string] $separator: space | comma | auto
// --------------------------------------------------------------------------------
// @return [list]

@function _map-keys($map, $separator: auto) {
  $return: ();
  
  @each $key, $value in $map {
    $return: append($return, $key, $separator);
  }
  
  @return $return;
}

@function __map-keys($map, $separator: space) {
  @return join((), map-keys($map), $separator);
}


// Returns a list of all values in a map.
// --------------------------------------------------------------------------------
// @param [map] $map
// @param [string] $separator: space | comma | auto
// --------------------------------------------------------------------------------
// @return [list]

@function _map-values($map, $separator: auto) {
  $return: ();
  
  @each $key, $value in $map {
    $return: append($return, $value, $separator);
  }
  
  @return $return;
}

@function __map-values($map, $separator: space) {
  @return join((), map-values($map), $separator);
}




sass {
  $map: (one: 1px, two: 2px);
  $test: (test: $map);
  
  keys: _map-keys($map);
  values: _map-values($map);
  /* */
  keys: __map-keys($map);
  values: __map-values($map);
  
  // test: map-values($test);
}

SassMeister-output.css

sass {
  keys: one two;
  values: 1px 2px;
  /* */
  keys: one two;
  values: 1px 2px;
}