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SassMeister-input.scss

// ----
// Sass (v3.2.19)
// Compass (v0.12.6)
// ----

//  Sass List-Maps 1.0.0
//  a libsass polyfill for rubysass "maps" data-type -- using lists
//  by @lunelson
//  MIT License

//                        88  88  88           88
//                 ,d     ""  88  ""    ,d     ""
//                 88         88        88
//  88       88  MM88MMM  88  88  88  MM88MMM  88   ,adPPYba,  ,adPPYba,
//  88       88    88     88  88  88    88     88  a8P_____88  I8[    ""
//  88       88    88     88  88  88    88     88  8PP"""""""   `"Y8ba,
//  "8a,   ,a88    88,    88  88  88    88,    88  "8b,   ,aa  aa    ]8I
//   `"YbbdP'Y8    "Y888  88  88  88    "Y888  88   `"Ybbd8"'  `"YbbdP"'
//

///////////////////////////
// list helper functions //
///////////////////////////

// list-slice(): return a sub-list from a list, 'sliced' from/to given indices
// ---
// @alias slice()
// ---
// @param [list] $list: list to slice
// @param [number] $start (1): start index
// @param [number] $end (length($list)): end index
// @param [string] $sep ('comma'): default list separator
// ---
// @return [list]
@function list-slice($list, $start: 1, $end: length($list), $sep: 'comma') {
  $output: ();
  @for $i from $start through $end {
    $output: append($output, nth($list, $i), $sep); }
  @return $output;
}
// alias
@function slice($args...) { @return list-slice($args...); }

// list-set-nth(): return a list with value at index set/updated to new value
// ---
// @alias set-nth()
// ---
// @param [list] $list: list to set
// @param [number] $index: index to set
// @param [literal] $value: new value
// @param [string] $sep ('comma'): list separator
// ---
// @return [list]
@function list-set-nth($list, $index, $value, $sep: 'comma') {
  $length: length($list);
  $output: ();
  @if $index > $length or $index <= 0 {
    @return $list;
  }
  @if $index > 1 {
    @for $i from 1 through $index - 1 {
      $output: append($output, nth($list, $i), $sep);
    }
  }
  $output: append($output, $value, $sep);
  @if $length > 1 {
    @for $i from $index + 1 through $length {
      $output: append($output, nth($list, $i), $sep);
    }
  }
  @return $output;
}
// alias
@function set-nth($args...) { @return list-set-nth($args...); }

///////////////////////////////
// list-map helper functions //
///////////////////////////////

// tuple-key(): return the key (first value) from a tuple (pair)
// ---
// @alias key()
// ---
// [0.9.3] added alias
// ---
// @param [list] $tuple: pair (list of length 2), to extract key from
// ---
// @return [literal]
@function tuple-key($tuple) {
  @if length($tuple) < 1 { @return null; }
  @return nth($tuple, 1);
}
// alias
@function key($tuple) { @return tuple-key($tuple); }

// tuple-value(): return the value (second value) from a tuple (pair)
// ---
// @alias value()
// ---
// [0.9.3] added alias
// ---
// @param [list] $tuple: pair (list of length 2), to extract value from
// ---
// @return [literal]
@function tuple-value($tuple) {
  @if length($tuple) < 2 { @return null; }
  @return nth($tuple, 2);
}
// alias
@function value($tuple) { @return tuple-value($tuple); }

// list-map-check(): return list-map from list; ensure input list-maps are lists-of-lists
// ---
// [0.9.5] added; replaces use of 'list()' function
// @param [list] $list: list-map to check
// ---
// @return [list]
@function list-map-check($list) {
  @if length($list) == 2 and length(nth($list, 1)) == 1 {
    @return append((), $list, 'comma');
  }
  @return $list;
}

//
//   ,adPPYba,   ,adPPYba,   8b,dPPYba,   ,adPPYba,
//  a8"     ""  a8"     "8a  88P'   "Y8  a8P_____88
//  8b          8b       d8  88          8PP"""""""
//  "8a,   ,aa  "8a,   ,a8"  88          "8b,   ,aa
//   `"Ybbd8"'   `"YbbdP"'   88           `"Ybbd8"'
//

/////////////////////////////////////////////////////////////////////////
// list-map versions of map-keys(), -values() and -has-key() functions //
/////////////////////////////////////////////////////////////////////////

// map-keys(): return comma-separated list of keys from map [conformant with rubysass map-keys()]
// ---
// @alias keys()
// ---
// [0.9.5] use list-map-check to handle single pairs automatically
// ---
// @param [argList] $list: list to retrieve keys from
// ---
// @return [list]
@function map-keys($list...) {
  $list: if(length($list) == 1, list-map-check($list...), list-map-check($list));
  $output: ();
  @each $tuple in $list {
    $output: append($output, tuple-key($tuple), 'comma');
  }
  @return $output;
}
// alias
@function keys($list...) { @return map-keys($list...); }

// map-values(): return comma-separated list of values from map [conformant with rubysass map-values()]
// ---
// @alias values()
// ---
// [0.9.5] use list-map-check to handle single pairs automatically
// ---
// @param [argList] $list: list to retrieve values from
// ---
// @return [list]
@function map-values($list...) {
  $list: if(length($list) == 1, list-map-check($list...), list-map-check($list));
  $output: ();
  @each $tuple in $list {
    $output: append($output, tuple-value($tuple), 'comma');
  }
  @return $output;
}
// alias
@function values($list...) { @return map-values($list...); }

// map-has-key(): check whether key exists in map at root level [conformant with rubysass map-has-key()]
// ---
// @alias has-key()
// ---
// @param [list] $list: list to check
// @param [literal] $key: key to check in list
// ---
// @return [bool]
@function map-has-key($list, $key) {
  $list: list-map-check($list);
  @each $tuple in $list {
    @if tuple-key($tuple) == $key {
      @return true;
    }
  }
  @return false;
}
// alias
@function has-key($list, $key) { @return map-has-key($list, $key); }

////////////////////////////////////////////////////////////
// list-map versions of map-get(), -merge() and -remove() //
////////////////////////////////////////////////////////////

// map-get(): return value corresponding to key in map; conformant to rubysass map-get()
// ---
// [0.9.5] list-map-check() now handles single-pair inputs / outputs
// ---
// @param [list] $list: map
// @param [literal] $key: key by which to look up value
// @param [bool] $check (true): whether or not to check the map format first
// ---
// @return [literal] | [null]
@function map-get($list, $key) {
  $list: list-map-check($list);
  @each $tuple in $list {
    @if tuple-key($tuple) == $key {
      @return tuple-value($tuple);
    }
  }
  @return null;
}

// map-merge(): return a merge of second map in to first map; conformant to rubysass map-merge()
// ---
// [0.9.5] list-map-check() handles single pairs; $check param for internal use
// ---
// @param [list] $list1: first map
// @param [list] $list2: second map
// @param [bool] $check (true): whether or not to check the map first
// ---
// @return [list]
@function map-merge($list1, $list2, $check: true) {
  @if $check {
    $list1: list-map-check($list1);
    $list2: list-map-check($list2);
  }
  $keys1: map-keys($list1);
  @each $tuple in $list2 {
    $index: index($keys1, tuple-key($tuple));
    @if $index { $list1: set-nth($list1, $index, $tuple); }
    @else { $list1: append($list1, $tuple, 'comma'); }
  }
  @return $list1;
}

// map-remove(): return map with tuples removed, according to keys (if found); conformant to rubysass 3.4 map-remove()
// ---
// @param [list] $list: map
// @param [literal] $key: key
// ---
// @return [list]
@function map-remove($list, $keys...) {
  $list: list-map-check($list);
  $output: ();
  @each $tuple in $list {
    @if index($keys, tuple-key($tuple)) == false {
      $output: append($output, $tuple, 'comma');
    }
  }
  @return $output;
}

//
//                       88                                                                         88
//                       88                                                                         88
//                       88                                                                         88
//  ,adPPYYba,   ,adPPYb,88  8b       d8  ,adPPYYba,  8b,dPPYba,    ,adPPYba,   ,adPPYba,   ,adPPYb,88
//  ""     `Y8  a8"    `Y88  `8b     d8'  ""     `Y8  88P'   `"8a  a8"     ""  a8P_____88  a8"    `Y88
//  ,adPPPPP88  8b       88   `8b   d8'   ,adPPPPP88  88       88  8b          8PP"""""""  8b       88
//  88,    ,88  "8a,   ,d88    `8b,d8'    88,    ,88  88       88  "8a,   ,aa  "8b,   ,aa  "8a,   ,d88
//  `"8bbdP"Y8   `"8bbdP"Y8      "8"      `"8bbdP"Y8  88       88   `"Ybbd8"'   `"Ybbd8"'   `"8bbdP"Y8
//

//////////////////////////////////////////////////////////////
// deep/nested map functions: map-get-z() and map-merge-z() //
//////////////////////////////////////////////////////////////

// map-get-z(): a 'deep', nested or chained version of `map-get` (see above); unique
// ---
// [0.9.5] now uses list-map-check to handle single-pair list-maps
// [0.9.2] aliased to get(); can replace map-get() and map-get-z() in usage
// ---
// @alias get()
// ---
// @param [list] $list: map
// @param [argList] $keys: nested / chained key list (where to get value)
// ---
// @return [literal] | [null]
@function map-get-z($list, $keys...) {
  @if $list == null { @return $list; }
  $length: length($keys);
  $list: map-get($list, nth($keys, 1));
  @if $length > 1 {
    @for $n from 2 through $length {
      @if $list == null { @return $list; }
      $list: map-get($list, nth($keys, $n));
    }
    @return $list;
  }
  @return $list;
}
// alias
@function get($args...) { @return map-get-z($args...); }

// map-merge-z(): a 'deep', nested or chained version of `map-merge`; offers `map-set` syntax too
// ---
// [0.9.5] now uses list-map-check to handle single-pair list-maps
// [0.9.2] aliased to merge() and set(); can replace map-merge() and map-merge-z() in usage
// ---
// @alias merge(), set()
// ---
// @param [list] $list: map
// @param [argList] $keys-and-values: nested / chained key list (where to merge value); final item in list is the value to be merged
// ---
// @return [list]
@function map-merge-z($list, $keys-and-value...) {
  $arg-length: length($keys-and-value);
  $value: nth($keys-and-value, $arg-length);
  $key-length: $arg-length - 1;
  $list: list-map-check($list);
  @if $key-length == 0 {
    $value: if(type-of($value) == 'list', map-merge($list, list-map-check($value), false), map-merge($list, append((), $value (), 'comma'), false));
  }
  @else {
    $start: 1;
    @if type-of($value) == 'list' {
      $start: 0;
      $value: list-map-check($value);
    }
    @for $i from $start through $key-length {
      $new-list: (); $old-list: ();
      @if $i == 0 { $new-list: $value; }
      @else { $new-list: append((), nth($keys-and-value, $key-length + 1 - $i) $value, 'comma'); }
      @if $i == $key-length { $old-list: $list; }
      @else { $old-list: map-get-z($list, slice($keys-and-value, 1, $key-length - $i)...) or (); }
      $value: map-merge($old-list, $new-list);
    }
  }
  @return $value;
}
// aliases
@function merge($args...) { @return map-merge-z($args...); }
@function set($args...) { @return map-merge-z($args...); }

//
//                             ,d
//                             88
//   ,adPPYba,  8b,     ,d8  MM88MMM  8b,dPPYba,  ,adPPYYba,  ,adPPYba,
//  a8P_____88   `Y8, ,8P'     88     88P'   "Y8  ""     `Y8  I8[    ""
//  8PP"""""""     )888(       88     88          ,adPPPPP88   `"Y8ba,
//  "8b,   ,aa   ,d8" "8b,     88,    88          88,    ,88  aa    ]8I
//   `"Ybbd8"'  8P'     `Y8    "Y888  88          `"8bbdP"Y8  `"YbbdP"'
//

/////////////////////////////////////
// additional map helper functions //
/////////////////////////////////////

// map-prev-key(): return previous key from map
// ---
// [0.9.5] added
// ---
// @alias prev-key()
// ---
// @param [list] $list: map
// @param [literal] $key: pivot key
// ---
// @return [literal]
@function map-prev-key($list, $key) {
  $list: list-map-check($list);
  $keys: map-keys($list);
  @return nth($keys, index($keys, $key) - 1);
}
// alias
@function prev-key($list, $key) { @return map-prev-key($list, $key); }

// map-next-key(): return next key from map
// ---
// [0.9.5] added
// ---
// @alias next-key()
// ---
// @param [list] $list: map
// @param [literal] $key: pivot key
// ---
// @return [literal]
@function map-next-key($list, $key) {
  $list: list-map-check($list);
  $keys: map-keys($list);
  @return nth($keys, index($keys, $key) + 1);
}
// alias
@function next-key($list, $key) { @return map-next-key($list, $key); }

// map-inspect(): return the string representation of a map
// ---
// [0.9.5] added
// ---
// @param [argList] $list: map
// ---
// @return [string]
@function map-inspect($list...) {
  $list: if(length($list) == 1, list-map-check($list...), list-map-check($list));
  $output: '(';
  $i: 1;
  @each $tuple in $list {
    @if length($tuple) != 2 {
      $output: $output + '#{$tuple}';
    }
    @else {
      $key: tuple-key($tuple);
      $value: tuple-value($tuple);
      $output: $output + '#{$key} ' + if(type-of($value) == 'list', '#{map-inspect($value)}', '#{$value}');
    }
    @if $i < length(map-keys($list)) {
      $output: $output + ', ';
    }
    $i: $i + 1;
  }
  @return $output + ')';
}

// map-pretty(): return the string representation of a map with indents and line breaks
// ---
// [0.9.9] added
// ---
// @alias map-inspect-pretty()
// ---
// @param [list] $list: map
// @param [number] $level (1): internal variable, do not touch
// ---
// @return [string]
@function map-pretty($list, $level: 1) {
  $tab: '  ';
  $cr: '
';
  $list: if(length($list) == 1, list-map-check($list...), list-map-check($list));
  $indent: $tab; $outdent: $tab;
  @for $n from 1 through $level { $indent: $indent + $tab; }
  @for $n from 1 through $level - 1 { $outdent: $outdent + $tab; }
  $output: '(' + $cr + $indent;
  $i: 1;
  @each $tuple in $list {
    @if length($tuple) != 2 {
      $output: $output + '#{$tuple}';
    }
    @else {
      $key: nth($tuple, 1); $value: nth($tuple, 2);
      @if type-of($value) == 'list' { $output: $output + '#{$key} #{map-pretty($value, $level+1)}'; }
      @else { $output: $output + '#{$key} #{$value}'; }
    }
    @if $i < length(map-keys($list)) { $output: $output + ',' + $cr + $indent; }
    $i: $i + 1;
  }
  @return $output + $cr + $outdent + ')';
}
// aliases
@function map-inspect-pretty($list...) { @return map-pretty($list...); }

// map-sort(): return sorted list-map, based on values at given key(s)
// ---
// [0.9.9] added
//
// @param [list] $list: map
// @param [argList] $keys: nested / chained key list
// ---
// @return [list]
$list-map-sort-dir: 'asc'; // global sort dir variable
@function map-sort($list-map, $keys...) {
  @if length($keys) < 1 { @return $list-map; }
  $list-map: list-map-check($list-map);
  @if length($list-map) > 1 {
    $less: (); $equal: (); $greater: ();
    $seed: nth($list-map, ceil(length($list-map) / 2));
    $seed-value: map-get-z(nth($seed, 2), $keys...);
    @each $item in $list-map {
      $item-value: map-get-z(nth($item, 2), $keys...);
      @if $list-map-sort-dir == 'asc' {
        @if $item-value == $seed-value { $equal: append($equal, $item, 'comma'); }
        @else if $item-value < $seed-value { $less: append($less, $item, 'comma'); }
        @else { $greater: append($greater, $item, 'comma'); }
      }
      @else {
        @if $item-value == $seed-value { $equal: append($equal, $item, 'comma'); }
        @else if $item-value > $seed-value { $less: append($less, $item, 'comma'); }
        @else { $greater: append($greater, $item, 'comma'); }
      }
    }
    @return join(join(map-sort($less, $keys...), $equal), map-sort($greater, $keys...));
  }
  @return $list-map;
}

// map-json(): return json string representation of a map
// ---
// [1.0.0] added
// ---
// @param [list] $list: map
// @param [number] $level (1): internal variable, do not touch
// ---
// @return [string]
@function map-json($list...) {
  $list: if(length($list) == 1, list-map-check($list...), list-map-check($list));
  $output: '{ '; $i: 1;
  @each $tuple in $list {
    @if length($tuple) != 2 {
      $output: $output + '#{$tuple}';
    }
    @else {
      $key: nth($tuple, 1);
      $value: nth($tuple, 2);
      @if type-of($value) == 'list' {
        $output: $output + '"#{$key}": #{map-json($value)}';
      }
      @else if type-of($value) == 'number' {
        $value: if(unitless($value), $value, '"#{$value}"');
        $output: $output + '"#{$key}": #{$value}';
      }
      @else {
        $value: if(type-of($value) == 'bool', $value, '"#{$value}"');
        $output: $output + '"#{$key}": #{$value}';
      }
    }
    @if $i < length(map-keys($list)) {
      $output: $output + ', ';
    }
    $i: $i + 1;
  }
  @return $output + ' }';
}

// Error
$map: ( a 1 );
$mmap: ( a: 1, );

SassMeister-output.css

Invalid CSS after "$mmap: ( a": expected ")", was ": 1, );"