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How to use MaskToText method of NBi.Core.Transformation.Transformer.Native.Text.BlankToNull class

Best NBi code snippet using NBi.Core.Transformation.Transformer.Native.Text.BlankToNull.MaskToText

TextTest.cs

Source:TextTest.cs

...442        [TestCase("(null)", "BE-***.***.**", "(empty)")]443        [TestCase("(empty)", "********", "(empty)")]444        [TestCase("(null)", "BE-***.***.**", "(blank)")]445        [TestCase("(blank)", "********", "(blank)")]446        public void Execute_MaskToText_Valid(string expected, string mask, string value)447        {448            var function = new MaskToText(new LiteralScalarResolver<string>(mask));449            var result = function.Evaluate(value);450            Assert.That(result, Is.EqualTo(expected));451        }452    }453}...

TextTransformations.cs

Source:TextTransformations.cs

...268            => Mask.Execute();269        protected override object EvaluateEmpty()270            => Mask.Execute();271    }272    class MaskToText : AbstractTextTransformation273    {274        private char maskChar { get; } = '*';275        public IScalarResolver<string> Mask { get; }276        public MaskToText(IScalarResolver<string> mask)277            => Mask = mask;278        protected override object EvaluateString(string value)279        {280            var mask = Mask.Execute();281            var stringBuilder = new StringBuilder();282            if (mask.Length != value.Length)283                return "(null)";284            for (int i = 0; i < mask.Length; i++)285                if (mask[i].Equals(maskChar) && !value[i].Equals(maskChar))286                    stringBuilder.Append(value[i]);287                else if (!mask[i].Equals(value[i]))288                    return "(null)";289            return stringBuilder.ToString();290        }...

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