public void RegisterHelper(string helperName, HandlebarsHelperV2 helperFunction)
{
if (string.IsNullOrEmpty(helperName))
{
throw new ArgumentNullException(nameof(helperName));
}
if (helperFunction == null)
{
throw new ArgumentNullException(nameof(helperFunction));
}
Configuration.Helpers.AddOrUpdate(helperName, n => helperFunction, (n, h) => helperFunction);
}
private static string CaptureTextWriterOutputFromHelper(
HandlebarsHelperV2 helper,
IHandlebarsEngine engine,
object context,
object[] arguments)
{
var builder = new StringBuilder();
using (var writer = new StringWriter(builder))
{
helper(engine, writer, context, arguments);
}
return(builder.ToString());
}
