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// Copyright © Microsoft Corporation.
// This source file is subject to the Microsoft Permissive License.
// See http://www.microsoft.com/resources/sharedsource/licensingbasics/sharedsourcelicenses.mspx.
// All other rights reserved.
using System;
using System.IO;
using System.Collections.Generic;
namespace Microsoft.Ddue.Tools.CommandLine {
public sealed class BooleanOption : Option {
public BooleanOption(string name) : base(name) { }
public BooleanOption(string name, string description) : base(name, description) { }
internal override ParseResult ParseArgument(string argument) {
if ((argument != "+") && (argument != "-")) return (ParseResult.MalformedArgument);
if (present) return (ParseResult.MultipleOccurance);
present = true;
if (argument == "+") {
value = true;
} else {
value = false;
}
return (ParseResult.Success);
}
internal override void WriteTemplate(TextWriter writer) {
writer.WriteLine("/{0}+|-", Name);
}
}
}
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