iframe-proxy | Sunbelt Computer Software

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@use 'sass:list';
@use 'sass:map';
// Functions.
@use 'function.is.function';
// Status: DONE
// The `function.has()` function checks whether `$value` contains existing function or from `$functions` in a form `module-function args...`.
// @param `$value` Value to check against existence function in a form `module-function args...`.
// @param `$prefix` Prefix of the function in `$value`.
// @param `$separator` Separator between module and function in string type function name.
// @param `$functions` Additional functions of `map` type to check in `$value`.
// @returns The return value is a `bool` indicating whether `$value` contains existing function.
@function has($value, $prefix: null, $separator: null, $functions: null) {
  @for $i from 1 through list.length($value) {
    $element: list.nth($value, $i);
    @if type-of($element) == map {
      $element: map.keys($element);
    @if type-of($element) == list and list.length($element) > 0 {
      $element: list.nth($element, 1);
    @if function.is($element, $prefix, $separator, $functions) {
      @return $i;
  @return false;
// Alias name.
@function value-has($value, $prefix: null, $separator: null, $functions: null) {
  @return has($value, $prefix, $separator, $functions);
// Examples.
// @debug has(selector-nest (unit 2)); // 1
// @debug has((unit 2) selector-nest); // 2
// @debug has(3px solid --selector-nest (primary dark)); // 3
// nested list
// @debug has(10px (selector-nest (unit 10)) 15px (unit 2)); // 2
// @debug has((selector-nest: (unit 2))); // 1
// nested map
// @debug has(10px (selector-nest: (unit 10)) 15px (unit 2)); // 2
// @debug has(__selector-nest (unit 2), __); // 1
// @debug has(-_-selector-nest (unit 2), -_-); // 1
// @debug has(primary color); // false

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