@charset "UTF-8";

// Built-in modules
@use "sass:color";
@use "sass:list";
@use "sass:map";
@use "sass:math";
@use "sass:meta";
@use "sass:selector";
@use "sass:string";

// Mixkit settings and modules
@use "mixkit/settings" as settings;
@use "mixkit/convert" as convert;

/// Checks for a valid CSS length.
///
/// @name is-length
///
/// @group mixkit/validate
///
/// @argument {string} $value
///   Value to check.
///
/// @return {boolean}
///
/// @require {functino} to-string
///
/// @access public
///
/// @since 1.0.0

@function is-length($value) {
    // Logic
    @return meta.type-of($value) != null
        and (
            string.slice($value + "", 1, 4) == "calc"
            or string.slice($value + "", 1, 3) == "var"
            or string.slice($value + "", 1, 3) == "env"
            or not not string.index(convert.to-string(auto inherit initial 0), convert.to-string($value))
            or (meta.type-of($value) == "number" and not math.is-unitless($value))
        );
}