/// Replaces a substring within another string.
/// @author Hugo Giraudel
/// @param {string} $string String.
/// @param {string} $search Substring.
/// @param {string} $replace Replacement.
/// @return {string} Updated string.
@function str-replace($string, $search, $replace: '') {

	$index: str-index($string, $search);

	@if $index {
		@return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
	}

	@return $string;

}

/// Replaces a substring within each string in a list.
/// @param {list} $strings List of strings.
/// @param {string} $search Substring.
/// @param {string} $replace Replacement.
/// @return {list} Updated list of strings.
@function str-replace-all($strings, $search, $replace: '') {

	@each $string in $strings {
		$strings: set-nth($strings, index($strings, $string), str-replace($string, $search, $replace));
	}

	@return $strings;

}

/// Gets a value from a map.
/// @author Hugo Giraudel
/// @param {map} $map Map.
/// @param {string} $keys Key(s).
/// @return {string} Value.
@function val($map, $keys...) {

	@each $key in $keys {
		$map: map-get($map, $key);
	}

	@return $map;

}

/// Gets a duration value.
/// @param {string} $keys Key(s).
/// @return {string} Value.
@function _duration($keys...) {
	@return val($duration, $keys...);
}

/// Gets a font value.
/// @param {string} $keys Key(s).
/// @return {string} Value.
@function _font($keys...) {
	@return val($font, $keys...);
}

/// Gets a misc value.
/// @param {string} $keys Key(s).
/// @return {string} Value.
@function _misc($keys...) {
	@return val($misc, $keys...);
}

/// Gets a palette value.
/// @param {string} $keys Key(s).
/// @return {string} Value.
@function _palette($keys...) {
	@return val($palette, $keys...);
}

/// Gets a size value.
/// @param {string} $keys Key(s).
/// @return {string} Value.
@function _size($keys...) {
	@return val($size, $keys...);
}