PreprocessCssx.cs

using System.Threading.Tasks;
using Waher.IoTGateway.Cssx;
using Waher.Script;
using Waher.Script.Abstraction.Elements;
using Waher.Script.Model;
using Waher.Script.Objects;
 
namespace Waher.IoTGateway.ScriptExtensions.Functions
{
    public class PreprocessCssx : FunctionOneScalarStringVariable
    {
        public PreprocessCssx(ScriptNode Cssx, int Start, int Length, Expression Expression)
            : base(Cssx, Start, Length, Expression)
        {
        }
 
        public override string FunctionName => nameof(PreprocessCssx);
 
        public override bool IsAsynchronous => true;
 
        public override IElement EvaluateScalar(string Argument, Variables Variables)
        {
            return this.EvaluateScalarAsync(Argument, Variables).Result;
        }
 
        public override async Task<IElement> EvaluateScalarAsync(string Argument, Variables Variables)
        {
            Argument = await CssxToCss.Convert(Argument, Variables, string.Empty, false);
            return new StringValue(Argument);
        }
 
    }
}