$parent-columns: $grid-columns !default;
$fg-column: $column;
$fg-gutter: $gutter;
$fg-max-columns: $grid-columns;
$container-display-table: false !default;
$layout-direction: nil !default;

@function flex-grid($columns, $container-columns: $fg-max-columns) {
    $width: $columns * $fg-column + ($columns - 1) * $fg-gutter;
    $container-width: $container-columns * $fg-column + ($container-columns - 1) * $fg-gutter;
    @return percentage($width / $container-width);
}

@function flex-gutter($container-columns: $fg-max-columns, $gutter: $fg-gutter) {
    $container-width: $container-columns * $fg-column + ($container-columns - 1) * $fg-gutter;
    @return percentage($gutter / $container-width);
}

@function grid-width($n) {
    @return $n * $gw-column + ($n - 1) * $gw-gutter;
}

@function get-parent-columns($columns) {
    @if $columns != $grid-columns {
        $parent-columns: $columns;
    } @else {
        $parent-columns: $grid-columns;
    }

    @return $parent-columns;
}

@function is-display-table($container-is-display-table, $display) {
    $display-table: false;

    @if $container-is-display-table == true {
        $display-table: true;
    } @else if $display == table {
        $display-table: true;
    }

    @return $display-table;
}

@function get-padding-for-table-layout($columns, $total-columns) {
    $total-padding: flex-gutter($total-columns) * ($columns - 1);
    $padding: $total-padding / $columns;

    @return $padding;
}
