How to implement String.Format() Functionality

[prakashboston]

String.Format() manages formatting including the position, alignment, and format type

[KovtunV]

Hello @prakashboston, add a function as described in a documentation

It could be like this:

public class MyFunction : IFunction
{
    public string Name { get; } = "Format";

    public bool CanHandleNullArguments { get; }

    public InternalEvaluatorValue Execute(List<InternalEvaluatorValue> args, ValueFactory factory)
    {
        var format = args[0].Word;
        var formatArguments = args.Skip(1).Cast<object>().ToArray();

        var result = string.Format(format, formatArguments);

        return factory.Word.Create(result);
    }
}

class Program
{
    static void Main()
    {
        var sss = string.Format("{0} hello {0}, {1}", 8, "hey");

        var ns = CreateNoString();

        var res = ns.CalcWord("Format('{0} hello {0}, {1}', 8, 'hey')");
    }

    static NoStringEvaluator CreateNoString()
    {
        static void Configure(NoStringEvaluatorOptions opt)
        {
            opt.WithFunctionsFrom(typeof(Program))
        }

        return NoStringEvaluator.CreateFacade(Configure).Evaluator;
    }

}

[prakashboston]

Thank you so much for your response.Its working fine and good to use this library

[KovtunV]

But keep in mind this snippet is not optimized, if you need a performance improvement change the row var formatArguments = args.Skip(1).Cast<object>().ToArray();